/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
  --bg:          #0a1929;
  --bg-alt:      #0d2038;
  --bg-card:     rgba(255,255,255,0.025);
  --accent:      #00d4ff;
  --accent-soft: rgba(0,212,255,0.06);
  --accent-border: rgba(0,212,255,0.22);
  --gold:        #f5a623;
  --gold-soft:   rgba(245,166,35,0.07);
  --gold-border: rgba(245,166,35,0.28);
  --text-1:      #f1f5f9;
  --text-2:      #cbd5e1;
  --text-3:      #94a3b8;
  --text-4:      #64748b;
  --rule:        rgba(148,163,184,0.12);
  --rule-soft:   rgba(148,163,184,0.07);
  --font-display: 'Manrope', sans-serif;
  --font-cn:      'Noto Sans SC', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;
  --nav-h:       56px;
  --container:   1240px;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
  font-size: 16px;
}

body {
  background: var(--bg);
  color: var(--text-2);
  font-family: var(--font-cn);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

/* ============================================================
   PROGRESS BAR
   ============================================================ */
#progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent) 0%, var(--gold) 100%);
  z-index: 1000;
  transition: width 0.1s linear;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(10,25,41,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 0.5px solid var(--rule);
  z-index: 900;
  transition: box-shadow 0.3s;
}
#nav.scrolled {
  box-shadow: 0 4px 32px rgba(0,0,0,0.4);
}

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  padding: 0 32px;
  gap: 32px;
}

.nav-name {
  font-family: var(--font-cn);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-1);
  letter-spacing: 0.14em;
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  overflow: hidden;
}

.nav-links a {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-4);
  letter-spacing: 0.06em;
  padding: 6px 10px;
  border-radius: 2px;
  transition: color 0.2s, background 0.2s;
  white-space: nowrap;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
  background: var(--accent-soft);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-2);
  transition: transform 0.3s, opacity 0.3s;
}
.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

/* ============================================================
   MOBILE MENU
   ============================================================ */
.mobile-menu {
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: rgba(10,25,41,0.97);
  backdrop-filter: blur(20px);
  z-index: 880;
  padding: 24px 32px 32px;
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.25s ease, opacity 0.25s ease;
  border-bottom: 0.5px solid var(--rule);
}
.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}
.mobile-menu ul { display: flex; flex-direction: column; gap: 4px; }
.mobile-menu a {
  font-family: var(--font-cn);
  font-size: 16px;
  color: var(--text-2);
  padding: 10px 0;
  display: block;
  border-bottom: 0.5px solid var(--rule-soft);
  transition: color 0.2s;
}
.mobile-menu a:hover { color: var(--accent); }

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.22,1,0.36,1) var(--d, 0s),
              transform 0.7s cubic-bezier(0.22,1,0.36,1) var(--d, 0s);
}
.reveal-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   CONTAINER
   ============================================================ */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 40px;
}

/* ============================================================
   SECTION COMMONS
   ============================================================ */
.section {
  padding: 100px 0;
  position: relative;
}
.alt-bg { background: var(--bg-alt); }

.section-header {
  margin-bottom: 56px;
}
.sec-en {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}
.sec-cn {
  font-family: var(--font-cn);
  font-size: 36px;
  font-weight: 600;
  color: var(--text-1);
  letter-spacing: 0.04em;
  line-height: 1.2;
}

/* ============================================================
   HERO
   ============================================================ */
.section-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 0;
}

#particle-canvas {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 120px 40px 80px;
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-label {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.5em;
  text-transform: uppercase;
  margin-bottom: 36px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.hero-label::after {
  content: '';
  flex: 1;
  max-width: 480px;
  height: 1px;
  background: linear-gradient(90deg, rgba(0,212,255,0.3) 0%, transparent 100%);
}

.hero-roles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 72px;
  max-width: 1100px;
  margin-bottom: 56px;
}
.role-item {
  font-family: var(--font-cn);
  font-size: 42px;
  font-weight: 600;
  color: var(--text-1);
  letter-spacing: 0.06em;
  line-height: 1.2;
  display: flex;
  align-items: center;
  gap: 16px;
}
.role-item::before {
  content: '';
  width: 20px;
  height: 2px;
  background: var(--gold);
  flex-shrink: 0;
}

.hero-meta {
  border-top: 0.5px solid var(--rule);
  padding-top: 36px;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 56px;
  align-items: start;
}

.hero-name {
  font-family: var(--font-cn);
  font-size: 30px;
  font-weight: 600;
  color: var(--text-1);
  letter-spacing: 0.22em;
  margin-bottom: 8px;
}
.hero-subtitle {
  font-family: var(--font-cn);
  font-size: 14px;
  font-weight: 300;
  color: var(--text-3);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}
.hero-info {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--text-4);
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}
.hero-email {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
}

.hero-blurb {
  font-family: var(--font-cn);
  font-size: 16px;
  font-weight: 300;
  color: var(--text-3);
  line-height: 2;
  letter-spacing: 0.04em;
}
.hl-num {
  color: var(--accent);
  font-weight: 600;
  font-family: var(--font-display);
  font-variant-numeric: tabular-nums;
}
.hl-accent {
  color: var(--accent);
  font-weight: 600;
}

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 1;
}
.scroll-indicator span {
  font-family: var(--font-display);
  font-size: 11px;
  color: var(--text-4);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.scroll-arrow {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--accent) 0%, transparent 100%);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.8); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 64px;
  align-items: start;
}
.about-meta {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.meta-item {
  padding-bottom: 18px;
  border-bottom: 0.5px solid var(--rule-soft);
}
.meta-lbl {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-4);
  letter-spacing: 0.26em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.meta-val {
  font-family: var(--font-cn);
  font-size: 16px;
  color: var(--text-2);
  letter-spacing: 0.03em;
}

.about-text p {
  font-family: var(--font-cn);
  font-size: 17px;
  color: var(--text-2);
  line-height: 1.9;
  margin-bottom: 24px;
  letter-spacing: 0.03em;
}

.capability-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 8px;
}
.cap-item {
  padding: 16px 18px;
  border: 0.5px solid var(--rule);
  background: var(--bg-card);
  border-left: 2px solid var(--accent-border);
}
.cap-title {
  font-family: var(--font-cn);
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 6px;
}
.cap-desc {
  font-size: 14px;
  color: var(--text-3);
  line-height: 1.55;
}

/* ============================================================
   TIMELINE
   ============================================================ */
.timeline-track {
  position: relative;
  padding-left: 32px;
}
.timeline-track::before {
  content: '';
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 1px;
  background: linear-gradient(180deg, var(--accent) 0%, rgba(0,212,255,0.1) 100%);
}

.tl-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  align-items: start;
  margin-bottom: 32px;
  position: relative;
}
.tl-dot {
  position: absolute;
  left: -36px;
  top: 18px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-4);
  border: 1px solid var(--rule);
}
.tl-dot-active {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(0,212,255,0.4);
}
.tl-period {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-4);
  letter-spacing: 0.04em;
  padding-top: 14px;
  text-align: right;
}
.tl-card {
  padding: 16px 20px;
  border: 0.5px solid var(--rule);
  background: var(--bg-card);
  transition: border-color 0.2s, background 0.2s;
}
.tl-card:hover {
  border-color: var(--accent-border);
  background: var(--accent-soft);
}
.tl-card-active {
  border-color: var(--accent-border);
  background: var(--accent-soft);
}
.tl-role {
  font-family: var(--font-cn);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 4px;
}
.tl-card-active .tl-role { color: var(--accent); }
.tl-company {
  font-size: 14px;
  color: var(--text-3);
  margin-bottom: 10px;
}
.tl-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.ttag {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-3);
  background: rgba(255,255,255,0.03);
  border: 0.5px solid var(--rule);
  padding: 3px 10px;
}
.ttag.gold {
  color: var(--gold);
  border-color: var(--gold-border);
  background: var(--gold-soft);
}

/* ============================================================
   PROJECT SECTIONS
   ============================================================ */
.project-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 56px;
  align-items: start;
}

.proj-tag {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.proj-stats {
  display: flex;
  gap: 0;
  margin-bottom: 28px;
  border-top: 0.5px solid var(--rule);
  border-bottom: 0.5px solid var(--rule);
  padding: 16px 0;
}
.pstat {
  flex: 1;
  padding-right: 16px;
  border-right: 0.5px solid var(--rule);
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0 4px;
}
.pstat:last-child { border-right: none; padding-right: 0; }
.pstat-num {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.pstat-plus {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.pstat-lbl {
  font-size: 13px;
  color: var(--text-4);
  flex-basis: 100%;
  margin-top: 4px;
  letter-spacing: 0.06em;
}

.proj-meta-block {
  margin-bottom: 14px;
}
.pm-lbl {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-4);
  letter-spacing: 0.26em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.pm-val {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.6;
}

.stack-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 6px;
  margin-top: 16px;
}
.pill {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-2);
  background: rgba(255,255,255,0.04);
  border: 0.5px solid var(--rule);
  padding: 3px 9px;
}
.pill.core {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: var(--accent-border);
}

/* Work cards */
.work-cards-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin-bottom: 8px;
}
.wcard {
  padding: 14px 16px;
  border: 0.5px solid var(--rule);
  background: var(--bg-card);
}
.wcard.featured {
  border-color: rgba(0,212,255,0.22);
  background: var(--accent-soft);
  position: relative;
}
.wcard.featured::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1.5px;
  background: linear-gradient(90deg, var(--gold) 0%, rgba(245,166,35,0.1) 70%, transparent 100%);
}
.wc-num {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 800;
  color: var(--gold);
  letter-spacing: 0.22em;
  margin-bottom: 5px;
}
.wc-title {
  font-family: var(--font-cn);
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 5px;
}
.wc-desc {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.55;
}
.wc-desc .hl { color: var(--accent); font-weight: 600; font-family: var(--font-display); }

.work-cards-6 {
  display: grid;
  grid-template-columns: repeat(6,1fr);
  gap: 7px;
  margin-bottom: 16px;
}
.wcard-sm {
  padding: 9px 10px;
  border: 0.5px solid var(--rule);
  background: var(--accent-soft);
  border-left: 1.5px solid rgba(0,212,255,0.18);
}
.wsn {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 0.2em;
  margin-bottom: 3px;
}
.wst {
  font-family: var(--font-cn);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 3px;
}
.wsd {
  font-size: 11px;
  color: var(--text-4);
  line-height: 1.45;
}

/* Arch strip */
.arch-strip {
  border-top: 0.5px solid var(--rule);
  padding-top: 12px;
}
.arch-lbl {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-4);
  letter-spacing: 0.26em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.arch-flow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
}
.af-node {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 6px 10px;
  border: 0.5px solid var(--rule);
  background: rgba(255,255,255,0.02);
  color: var(--text-3);
  white-space: nowrap;
}
.af-node.accent {
  border-color: var(--accent-border);
  color: var(--accent);
  background: var(--accent-soft);
}
.af-node.gold {
  border-color: var(--gold-border);
  color: var(--gold);
  background: var(--gold-soft);
}
.af-node.small { font-size: 10px; padding: 4px 8px; }
.af-node.dim { color: var(--text-4); opacity: 0.7; }
.af-arr {
  width: 24px;
  height: 1px;
  background: rgba(0,212,255,0.3);
  position: relative;
  flex-shrink: 0;
}
.af-arr::after {
  content: '';
  position: absolute;
  right: -1px;
  top: -3px;
  border: 4px solid transparent;
  border-left: 5px solid rgba(0,212,255,0.45);
}
.af-node-stack {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* ============================================================
   P2PSTORM — domain grid / layer arch
   ============================================================ */
.domain-label, .arch-label-row {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-4);
  letter-spacing: 0.26em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.arch-label-row { margin-top: 20px; }

.domain-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 6px;
  margin-bottom: 20px;
}
.dm-cell {
  padding: 10px 12px;
  border: 0.5px solid var(--rule);
  background: var(--bg-card);
  position: relative;
  cursor: default;
  transition: border-color 0.2s, background 0.2s;
}
.dm-cell:hover { border-color: var(--accent-border); background: var(--accent-soft); }
.dm-cell.accent-cell {
  border-color: var(--accent-border);
  background: var(--accent-soft);
}
.dm-cell.accent-cell::after {
  content: '';
  position: absolute;
  top: 8px; right: 8px;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 4px rgba(245,166,35,0.5);
}
.dc-cn {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 2px;
}
.dc-en {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-4);
  letter-spacing: 0.05em;
}
.dm-cell.accent-cell .dc-cn { color: var(--accent); }

.layer-arch {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}
.la-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.la-badge {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 800;
  color: var(--accent);
  background: var(--accent-soft);
  border: 0.5px solid var(--accent-border);
  padding: 4px 8px;
  min-width: 40px;
  text-align: center;
}
.gold-badge { color: var(--gold); background: var(--gold-soft); border-color: var(--gold-border); }
.dim-badge { color: var(--text-4); background: rgba(255,255,255,0.02); border-color: var(--rule); }

.la-box {
  padding: 8px 14px;
  border: 0.5px solid var(--rule);
  background: rgba(255,255,255,0.02);
  min-width: 180px;
}
.la-box.accent-box { border-color: var(--accent-border); background: var(--accent-soft); }
.la-box.gold-box { border-color: var(--gold-border); background: var(--gold-soft); }
.la-box.dim-box { border-color: var(--rule-soft); }
.la-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 2px;
}
.accent-box .la-title { color: var(--accent); }
.gold-box .la-title { color: var(--gold); }
.la-tech {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-4);
}
.la-desc {
  font-size: 13px;
  color: var(--text-3);
  letter-spacing: 0.02em;
}

.biz-flow-row {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 12px 0;
  border-top: 0.5px solid var(--rule);
  flex-wrap: wrap;
}
.bf-step {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-3);
  text-align: center;
  padding: 8px 14px;
  border: 0.5px solid var(--rule);
  background: var(--bg-card);
  line-height: 1.4;
  letter-spacing: 0.04em;
}
.bf-step span { display: block; font-size: 13px; color: var(--text-2); font-weight: 600; }
.bf-arr {
  width: 24px;
  height: 1px;
  background: rgba(0,212,255,0.25);
  flex-shrink: 0;
  position: relative;
}
.bf-arr::after {
  content: '';
  position: absolute;
  right: -1px;
  top: -3px;
  border: 4px solid transparent;
  border-left: 5px solid rgba(0,212,255,0.35);
}
.gold-arr { background: rgba(245,166,35,0.35); }
.gold-arr::after { border-left-color: rgba(245,166,35,0.5); }
.gold-step {
  color: var(--gold);
  border-color: var(--gold-border);
  background: var(--gold-soft);
}
.gold-step span { color: var(--gold); }

/* ============================================================
   BITTRUST
   ============================================================ */
.code-stat-block {
  margin-bottom: 24px;
  padding: 18px 20px;
  border: 0.5px solid var(--gold-border);
  background: var(--gold-soft);
  position: relative;
}
.code-stat-block::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--gold) 0%, rgba(245,166,35,0.1) 80%, transparent 100%);
}
.cs-big {
  font-family: var(--font-display);
  font-size: 52px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(135deg, #f5a623 0%, #ffd166 60%, #f5a623 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}
.cs-plus {
  font-size: 24px;
  color: var(--gold);
  font-family: var(--font-display);
  font-weight: 700;
  display: inline;
  vertical-align: super;
}
.cs-hairline {
  width: 100%;
  height: 0.5px;
  background: linear-gradient(90deg, var(--gold) 0%, rgba(245,166,35,0.08) 100%);
  margin: 8px 0;
}
.cs-unit {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-2);
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}
.cs-break {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.7;
}

.sub-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-4);
  letter-spacing: 0.26em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.sub-matrix {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 6px;
  margin-bottom: 16px;
}
.sub-cell {
  padding: 8px 10px;
  border: 0.5px solid var(--rule);
  background: var(--bg-card);
}
.sub-cell.wide-cell { grid-column: span 2; }
.sub-cell.core-cell { border-color: var(--accent-border); background: var(--accent-soft); }
.sub-cell.gold-cell { border-color: var(--gold-border); background: var(--gold-soft); }
.sc-cn {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 2px;
}
.sc-en {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-4);
  letter-spacing: 0.04em;
}
.core-cell .sc-cn { color: var(--accent); }
.gold-cell .sc-cn { color: var(--gold); }

.chain-flow-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-4);
  letter-spacing: 0.26em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.chain-flow {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.cf-chains {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.cf-chain {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold);
  padding: 4px 8px;
  border: 0.5px solid var(--gold-border);
  background: var(--gold-soft);
}
.cf-chain-more {
  font-family: var(--font-mono);
  font-size: 10px;
  color: rgba(245,166,35,0.5);
  padding: 0 4px;
}
.cf-arr {
  width: 24px;
  height: 1px;
  background: rgba(0,212,255,0.3);
  flex-shrink: 0;
  position: relative;
}
.cf-arr::after {
  content: '';
  position: absolute;
  right: -1px;
  top: -3px;
  border: 4px solid transparent;
  border-left: 5px solid rgba(0,212,255,0.45);
}
.cf-box {
  padding: 8px 12px;
  border: 0.5px solid var(--rule);
  background: var(--bg-card);
}
.cf-box.gold {
  border-color: var(--gold-border);
  background: var(--gold-soft);
}
.cf-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
}
.cf-box.gold .cf-title { color: var(--gold); }
.cf-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-4);
}

.work-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 16px;
}
.wb {
  padding: 8px 10px 8px 14px;
  border-left: 1.5px solid rgba(0,212,255,0.18);
  background: var(--accent-soft);
}
.wb-num {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 0.22em;
  margin-bottom: 2px;
}
.wb-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 2px;
}
.wb-desc {
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.45;
}
.wb-desc .hl { color: var(--accent); font-weight: 600; font-family: var(--font-display); }

/* ============================================================
   STARTUP
   ============================================================ */
.startup-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.big-kpi-wrap {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  margin-bottom: 8px;
}
.big-kpi-num {
  font-family: var(--font-display);
  font-size: 120px;
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.05em;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(135deg, #f5a623 0%, #ffd27d 40%, #e8960c 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.big-kpi-unit {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 300;
  color: var(--text-3);
  letter-spacing: 0.06em;
  padding-bottom: 16px;
}
.kpi-hairline {
  width: 100%;
  max-width: 420px;
  height: 0.5px;
  background: linear-gradient(90deg, var(--gold) 0%, rgba(245,166,35,0.1) 70%, transparent 100%);
  margin-bottom: 16px;
}
.kpi-label {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 300;
  color: var(--text-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 32px;
}

.sub-metrics {
  display: flex;
  gap: 0;
  border-top: 0.5px solid var(--rule);
  padding-top: 20px;
}
.sm-item {
  flex: 1;
  padding-right: 24px;
  border-right: 0.5px solid var(--rule);
}
.sm-item:last-child { border-right: none; padding-right: 0; }
.sm-num {
  font-family: var(--font-display);
  font-size: 38px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.sm-plus {
  font-size: 20px;
  color: var(--accent);
  font-weight: 700;
  font-family: var(--font-display);
  display: inline;
}
.sm-num.gold-num { color: var(--gold); }
.sm-lbl {
  font-size: 14px;
  color: var(--text-3);
  letter-spacing: 0.06em;
  margin-top: 4px;
}

.startup-meta { margin-bottom: 24px; }
.sm-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 0.5px solid var(--rule-soft);
}
.sm-k {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  color: var(--text-4);
  letter-spacing: 0.1em;
}
.sm-v {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.5;
}

.loop-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-4);
  letter-spacing: 0.26em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.loop-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin-bottom: 16px;
}
.loop-card {
  border: 0.5px solid var(--rule);
  background: var(--bg-card);
  overflow: hidden;
}
.loop-head {
  padding: 8px 12px;
  background: var(--accent-soft);
  border-bottom: 0.5px solid var(--accent-border);
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.04em;
}
.loop-body { padding: 8px 12px; display: flex; flex-direction: column; gap: 4px; }
.li {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.45;
  padding-left: 12px;
  position: relative;
}
.li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 4px;
  height: 1px;
  background: var(--accent);
  opacity: 0.5;
}

.end-note {
  padding: 10px 14px;
  border-left: 1.5px solid var(--accent-border);
  background: var(--accent-soft);
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.6;
}

/* ============================================================
   EXP LAYOUT (dubai, ag, weiwen, yulong)
   ============================================================ */
.exp-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 56px;
  align-items: start;
}

.exp-period {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.exp-company {
  font-family: var(--font-cn);
  font-size: 24px;
  font-weight: 600;
  color: var(--text-1);
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}
.exp-product {
  font-size: 15px;
  color: var(--accent);
  letter-spacing: 0.06em;
  margin-bottom: 20px;
}

.exp-kpi-block {
  padding: 14px 16px;
  border: 0.5px solid var(--accent-border);
  background: var(--accent-soft);
  margin-bottom: 16px;
  position: relative;
}
.exp-kpi-block.gold-kpi {
  border-color: var(--gold-border);
  background: var(--gold-soft);
}
.ekpi-num {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.ekpi-num.gold-num { color: var(--gold); }
.ekpi-hairline {
  width: 80%;
  height: 0.5px;
  background: linear-gradient(90deg, var(--accent) 0%, rgba(0,212,255,0.1) 100%);
  margin: 6px 0;
}
.ekpi-hairline.gold-hairline {
  background: linear-gradient(90deg, var(--gold) 0%, rgba(245,166,35,0.1) 100%);
}
.ekpi-lbl {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--text-2);
  letter-spacing: 0.1em;
}
.ekpi-sub {
  font-size: 13px;
  color: var(--text-4);
  margin-top: 4px;
}

.exp-stats-row {
  display: flex;
  gap: 0;
  margin: 16px 0;
  padding: 14px 0;
  border-top: 0.5px solid var(--rule);
  border-bottom: 0.5px solid var(--rule);
}
.es-item {
  flex: 1;
  padding-right: 12px;
  border-right: 0.5px solid var(--rule);
}
.es-item:last-child { border-right: none; padding-right: 0; }
.es-num {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.es-lbl { font-size: 13px; color: var(--text-3); margin-top: 4px; letter-spacing: 0.06em; }

.pivot-badge {
  display: inline-block;
  background: var(--accent-soft);
  border: 0.5px solid var(--accent-border);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.07em;
  padding: 6px 12px;
  margin: 10px 0;
}
.pivot-badge.small-badge { font-size: 12px; padding: 5px 10px; }

.exp-meta-block { margin-bottom: 12px; }
.em-lbl {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-4);
  letter-spacing: 0.26em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.em-val {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.6;
}

/* Team grid */
.team-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-4);
  letter-spacing: 0.26em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.team-grid {
  display: grid;
  grid-template-columns: repeat(5,1fr);
  gap: 6px;
  margin-bottom: 18px;
}
.tm-card {
  padding: 10px 8px;
  border: 0.5px solid var(--rule);
  background: var(--bg-card);
  text-align: center;
}
.tm-card.leader-card {
  border-color: var(--accent-border);
  background: var(--accent-soft);
}
.tm-role {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 4px;
}
.leader-card .tm-role { color: var(--accent); }
.tm-task { font-size: 11px; color: var(--text-4); line-height: 1.4; }

/* Work rows */
.work-rows {
  display: flex;
  flex-direction: column;
  border: 0.5px solid var(--rule);
  margin-bottom: 14px;
}
.wr {
  display: grid;
  grid-template-columns: 140px 1fr;
  border-bottom: 0.5px solid var(--rule-soft);
  align-items: stretch;
}
.wr:last-child { border-bottom: none; }
.wr-k {
  padding: 9px 12px;
  border-right: 0.5px solid var(--rule-soft);
  background: rgba(255,255,255,0.01);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-2);
  display: flex;
  align-items: center;
}
.wr-hl .wr-k { color: var(--accent); background: var(--accent-soft); }
.wr-v {
  padding: 9px 14px;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.55;
  display: flex;
  align-items: center;
}

/* Gain block */
.gain-block {
  border-left: 2px solid var(--accent-border);
  padding: 12px 16px;
  background: var(--accent-soft);
}
.gb-title {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.gb-items { display: flex; flex-direction: column; gap: 5px; }
.gi {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.5;
  padding-left: 14px;
  position: relative;
}
.gi::before {
  content: '▸';
  color: var(--accent);
  position: absolute;
  left: 0;
  top: 1px;
  font-size: 10px;
  opacity: 0.65;
}

/* AG Role timeline */
.role-timeline {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 0.5px solid var(--rule);
}
.rt-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  position: relative;
}
.rt-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(0,212,255,0.15);
  border: 1px solid rgba(0,212,255,0.3);
}
.rt-dot.active-dot {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 10px rgba(0,212,255,0.4);
}
.rt-year {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-4);
}
.rt-role {
  font-size: 12px;
  color: var(--text-3);
}
.rt-node.active .rt-year { color: var(--accent); }
.rt-node.active .rt-role { color: var(--accent); font-weight: 600; }
.rt-line {
  flex: 1;
  height: 1px;
  background: rgba(0,212,255,0.18);
  margin-bottom: 24px;
  min-width: 60px;
}

/* Stage cards */
.stage-cards { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }
.sc-card {
  display: grid;
  grid-template-columns: 90px 1fr;
  border: 0.5px solid var(--rule);
  background: var(--bg-card);
  overflow: hidden;
}
.sc-card.sc-active {
  border-color: var(--accent-border);
  background: var(--accent-soft);
  position: relative;
}
.sc-card.sc-active::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--accent);
}
.sc-meta {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 8px;
  border-right: 0.5px solid var(--rule);
  background: rgba(255,255,255,0.01);
  gap: 3px;
}
.sc-phase {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 0.14em;
}
.sc-year {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-4);
}
.sc-badge {
  font-size: 11px;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 6px;
  border: 0.5px solid var(--accent-border);
  font-weight: 600;
}
.sc-body { padding: 10px 14px; }
.sc-role {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 5px;
}
.sc-active .sc-role { color: var(--accent); }
.sc-points { display: flex; flex-direction: column; gap: 3px; }
.sp {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.5;
  padding-left: 14px;
  position: relative;
}
.sp::before {
  content: '▸';
  color: var(--accent);
  position: absolute;
  left: 0;
  top: 1px;
  font-size: 10px;
  opacity: 0.6;
}
.sp .hl { color: var(--accent); font-weight: 600; }

/* Module grid (weiwen) */
.module-grid-2 {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 8px;
  margin-bottom: 14px;
}
.mg-card {
  padding: 13px 16px;
  border: 0.5px solid var(--rule);
  background: var(--bg-card);
}
.mg-card.featured-card {
  border-color: var(--accent-border);
  background: var(--accent-soft);
}
.mg-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 5px;
}
.featured-card .mg-title { color: var(--accent); }
.mg-desc { font-size: 13px; color: var(--text-3); line-height: 1.55; }

/* ERP flow row */
.erp-flow-row {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 12px 0;
  border-top: 0.5px solid var(--rule);
  flex-wrap: wrap;
}
.ef-node {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-3);
  padding: 6px 12px;
  border: 0.5px solid var(--rule);
  background: var(--bg-card);
}
.ef-node.accent { color: var(--accent); border-color: var(--accent-border); background: var(--accent-soft); }
.ef-arr {
  width: 24px;
  height: 1px;
  background: rgba(0,212,255,0.25);
  flex-shrink: 0;
  position: relative;
}
.ef-arr::after {
  content: '';
  position: absolute;
  right: -1px;
  top: -3px;
  border: 4px solid transparent;
  border-left: 5px solid rgba(0,212,255,0.35);
}

/* Module asym (yulong) */
.module-asym {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  align-items: stretch;
}
.ma-card {
  padding: 13px 15px;
  border: 0.5px solid var(--rule);
  background: var(--bg-card);
  flex: 1;
}
.ma-featured {
  flex: 1.6;
  border-color: var(--accent-border);
  background: var(--accent-soft);
  position: relative;
}
.ma-featured::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1.5px;
  background: linear-gradient(90deg, var(--accent) 0%, rgba(0,212,255,0.1) 70%, transparent 100%);
}
.ma-side { display: flex; flex-direction: column; gap: 8px; flex: 1; }
.ma-num {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 0.22em;
  margin-bottom: 5px;
}
.ma-title { font-size: 16px; font-weight: 600; color: var(--accent); margin-bottom: 5px; }
.ma-card:not(.ma-featured) .ma-title { color: var(--text-1); }
.ma-desc { font-size: 13px; color: var(--text-3); line-height: 1.55; }

.tech-cards-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 7px;
  margin-bottom: 14px;
}
.tc {
  padding: 11px 13px;
  border: 0.5px solid var(--rule);
  background: var(--bg-card);
}
.tc-title { font-size: 14px; font-weight: 600; color: var(--text-1); margin-bottom: 4px; }
.tc-desc { font-size: 12px; color: var(--text-4); line-height: 1.5; }

/* ============================================================
   TECHSTACK
   ============================================================ */
.tech-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 56px;
  row-gap: 36px;
}
.tc-cat {
  border-top: 0.5px solid var(--rule);
  padding-top: 14px;
}
.tcat-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
}
.tcat-en {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 0.3em;
  text-transform: uppercase;
}
.tcat-cn {
  font-size: 19px;
  font-weight: 600;
  color: var(--text-1);
}
.tcat-rows { display: flex; flex-direction: column; gap: 7px; }
.tr {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 14px;
  font-size: 14px;
  line-height: 1.5;
}
.tr-name {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-1);
  letter-spacing: 0.01em;
}
.tr-name.core { color: var(--accent); }
.tr-desc { color: var(--text-3); letter-spacing: 0.02em; }

/* ============================================================
   ENGINEERING
   ============================================================ */
.eng-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 48px;
}
.eng-item {
  padding: 14px 16px 14px 18px;
  border-left: 1.5px solid rgba(0,212,255,0.16);
  background: rgba(0,212,255,0.02);
}
.eng-item.hl-eng {
  border-left-color: var(--accent);
  background: rgba(0,212,255,0.055);
}
.ei-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-1);
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}
.ei-desc {
  font-size: 14px;
  color: var(--text-3);
  line-height: 1.6;
}
.ei-desc .hl { color: var(--accent); font-weight: 600; font-family: var(--font-display); }

/* ============================================================
   CONTACT
   ============================================================ */
.section-contact {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  padding: 100px 40px;
}

.contact-center {
  text-align: center;
  max-width: 700px;
  width: 100%;
}
.contact-pre {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 0.4em;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.contact-name {
  font-family: var(--font-cn);
  font-size: 80px;
  font-weight: 200;
  color: var(--text-1);
  letter-spacing: 0.2em;
  line-height: 0.95;
  margin-bottom: 20px;
}
.cn-bold { font-weight: 700; color: var(--accent); }
.contact-line {
  width: 56px;
  height: 1.5px;
  background: linear-gradient(90deg, var(--accent), rgba(0,212,255,0.15));
  margin: 0 auto 32px;
}
.contact-subtitle {
  font-size: 17px;
  font-weight: 300;
  color: var(--text-3);
  letter-spacing: 0.18em;
  margin-bottom: 48px;
}
.contact-card {
  max-width: 440px;
  margin: 0 auto 32px;
  border: 0.5px solid var(--accent-border);
  background: var(--accent-soft);
  padding: 24px;
}
.cc-lbl {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 800;
  color: var(--text-4);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.cc-val {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--text-1);
  letter-spacing: 0.02em;
  transition: color 0.2s;
}
.cc-val:hover { color: var(--accent); }

.contact-edu {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 15px;
  color: var(--text-4);
  letter-spacing: 0.08em;
  padding-top: 20px;
  border-top: 0.5px solid var(--rule-soft);
}
.edu-school { color: var(--text-2); font-weight: 600; font-size: 16px; }
.edu-sep { color: var(--rule); }

.footer-bar {
  position: absolute;
  bottom: 0;
  left: 0; right: 0;
  padding: 16px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-display);
  font-size: 12px;
  color: var(--text-4);
  letter-spacing: 0.06em;
  border-top: 0.5px solid var(--rule);
}

/* ============================================================
   RESPONSIVE — TABLET
   ============================================================ */
@media (max-width: 1024px) {
  :root { --container: 100%; }
  .container { padding: 0 32px; }

  .hero-roles { grid-template-columns: 1fr; gap: 12px; }
  .role-item { font-size: 32px; }
  .hero-meta { grid-template-columns: 1fr; gap: 24px; }

  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .capability-grid { grid-template-columns: 1fr; }

  .tl-item { grid-template-columns: 160px 1fr; gap: 20px; }

  .project-layout { grid-template-columns: 1fr; gap: 32px; }
  .work-cards-6 { grid-template-columns: repeat(3,1fr); }
  .domain-grid { grid-template-columns: repeat(4,1fr); }
  .sub-matrix { grid-template-columns: repeat(3,1fr); }

  .startup-layout { grid-template-columns: 1fr; gap: 40px; }
  .big-kpi-num { font-size: 80px; }

  .exp-layout { grid-template-columns: 1fr; gap: 32px; }
  .team-grid { grid-template-columns: repeat(3,1fr); }

  .tech-grid { grid-template-columns: 1fr; row-gap: 28px; }
  .tr { grid-template-columns: 200px 1fr; }

  .eng-grid { grid-template-columns: 1fr; }

  .contact-name { font-size: 60px; }
}

/* ============================================================
   RESPONSIVE — MOBILE
   ============================================================ */
@media (max-width: 768px) {
  :root { --nav-h: 52px; }
  .container { padding: 0 20px; }
  .section { padding: 72px 0; }

  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  .hero-inner { padding: 80px 20px 60px; }
  .hero-label { font-size: 11px; letter-spacing: 0.3em; }
  .role-item { font-size: 24px; gap: 12px; }
  .hero-name { font-size: 24px; }
  .hero-blurb { font-size: 15px; }

  .sec-cn { font-size: 26px; }

  .timeline-track { padding-left: 20px; }
  .tl-item { grid-template-columns: 1fr; gap: 8px; }
  .tl-period { text-align: left; padding-top: 0; }
  .tl-dot { left: -24px; }

  .work-cards-3 { grid-template-columns: 1fr; }
  .work-cards-6 { grid-template-columns: 1fr 1fr; }

  .domain-grid { grid-template-columns: 1fr 1fr; }
  .sub-matrix { grid-template-columns: 1fr 1fr; }
  .sub-cell.wide-cell { grid-column: span 1; }

  .big-kpi-num { font-size: 56px; }
  .sub-metrics { flex-direction: column; gap: 16px; border-top: none; padding-top: 0; }
  .sm-item { border-right: none; padding-right: 0; border-bottom: 0.5px solid var(--rule); padding-bottom: 14px; }

  .team-grid { grid-template-columns: 1fr 1fr; }
  .stage-cards .sc-card { grid-template-columns: 1fr; }
  .sc-meta { flex-direction: row; justify-content: flex-start; gap: 10px; padding: 8px 12px; border-right: none; border-bottom: 0.5px solid var(--rule); }

  .module-grid-2 { grid-template-columns: 1fr; }
  .module-asym { flex-direction: column; }
  .ma-side { flex-direction: row; }

  .tech-cards-3 { grid-template-columns: 1fr; }
  .tr { grid-template-columns: 1fr; gap: 4px; }

  .work-grid-2 { grid-template-columns: 1fr; }
  .loop-grid { grid-template-columns: 1fr; }

  .contact-name { font-size: 48px; }

  .erp-flow-row { gap: 6px; }
  .biz-flow-row { gap: 6px; }

  .chain-flow { flex-wrap: wrap; gap: 8px; }
  .arch-flow { gap: 6px; }
}

@media (max-width: 480px) {
  .role-item { font-size: 20px; }
  .hero-roles { gap: 10px; }
  .work-cards-6 { grid-template-columns: 1fr; }
  .domain-grid { grid-template-columns: 1fr; }
  .sub-matrix { grid-template-columns: 1fr; }
  .sub-cell.wide-cell { grid-column: span 1; }
}