/* ══════════════════════════════════════════
   数字投资公司 — 投资人演示 Demo 样式
   暗黑金融风 × 金色点缀 × 流畅动画
   ══════════════════════════════════════════ */

:root {
  --bg:        #0a0a0f;
  --bg-card:   #12121a;
  --bg-dark:   #08080d;
  --surface:   #1a1a26;
  --border:    #2a2a3a;
  --text:      #e8e8f0;
  --text-dim:  #8888a0;
  --text-muted:#5a5a72;
  --gold:      #c9a84c;
  --gold-light:#e8cc6e;
  --gold-dim:  #8a7030;
  --accent:    #4a8eff;
  --accent2:   #7c5cfc;
  --green:     #3ecf8e;
  --red:       #ef4444;
  --orange:    #f59e0b;
  --radius:    12px;
  --radius-lg: 20px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Noto Sans SC', -apple-system, sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.7; overflow-x: hidden;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ═══════ NAV ═══════ */
#nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(10,10,15,0.85); backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent; transition: border-color .3s, background .3s;
}
#nav.scrolled { border-bottom-color: var(--border); background: rgba(10,10,15,0.95); }
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; height: 64px;
}
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-icon {
  width: 36px; height: 36px; border-radius: 8px;
  background: linear-gradient(135deg, var(--gold), var(--gold-dim));
  display: flex; align-items: center; justify-content: center;
  font-family: 'Noto Serif SC', serif; font-weight: 900; font-size: 18px; color: var(--bg);
}
.logo-text { font-family: 'Noto Serif SC', serif; font-weight: 700; font-size: 18px; color: var(--text); }
.nav-links { display: flex; gap: 20px; }
.nav-links a { color: var(--text-dim); text-decoration: none; font-size: 13px; font-weight: 500; transition: color .2s; }
.nav-links a:hover { color: var(--gold); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--text); margin: 4px 0; transition: .2s; }

/* ═══════ HERO ═══════ */
.hero {
  min-height: 100vh; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  position: relative; text-align: center; padding: 120px 24px 80px;
}
.hero-bg { position: absolute; inset: 0; overflow: hidden; }
.grid-lines {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(201,168,76,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,168,76,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-glow {
  position: absolute; top: 20%; left: 50%; transform: translate(-50%,-50%);
  width: 800px; height: 600px; border-radius: 50%;
  background: radial-gradient(ellipse, rgba(201,168,76,0.08), transparent 70%); filter: blur(80px);
}
.hero-content { position: relative; z-index: 1; }
.hero-badge {
  display: inline-block; padding: 6px 20px; border-radius: 100px;
  border: 1px solid var(--gold-dim); color: var(--gold);
  font-size: 12px; font-weight: 500; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 32px;
}
.hero-title { margin-bottom: 24px; }
.hero-title-cn {
  display: block; font-family: 'Noto Serif SC', serif;
  font-size: clamp(48px, 8vw, 96px); font-weight: 900;
  background: linear-gradient(135deg, var(--gold-light), var(--gold), var(--gold-dim));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; line-height: 1.1;
}
.hero-title-sub { display: block; font-size: clamp(14px, 2.2vw, 20px); color: var(--text-dim); font-weight: 400; margin-top: 16px; }
.hero-desc { font-size: 17px; color: var(--text-dim); max-width: 700px; margin: 0 auto 40px; line-height: 1.8; }
.hero-stats { display: flex; gap: 36px; justify-content: center; margin-bottom: 48px; flex-wrap: wrap; }
.stat { text-align: center; }
.stat-num { font-family: 'JetBrains Mono', monospace; font-size: 44px; font-weight: 500; color: var(--gold); line-height: 1; }
.stat-label { font-size: 13px; color: var(--text-muted); margin-top: 6px; }
.hero-cta { display: flex; gap: 16px; justify-content: center; }
.btn {
  display: inline-flex; align-items: center; padding: 14px 32px;
  border-radius: 10px; font-size: 15px; font-weight: 600; text-decoration: none; transition: all .25s;
}
.btn-primary { background: linear-gradient(135deg, var(--gold), var(--gold-dim)); color: var(--bg); border: none; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(201,168,76,0.3); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }
.scroll-hint { position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 8px; }
.scroll-hint span { font-size: 12px; color: var(--text-muted); letter-spacing: 1px; }
.scroll-arrow {
  width: 20px; height: 20px; border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted); transform: rotate(45deg); animation: scrollBounce 2s infinite;
}
@keyframes scrollBounce {
  0%,100% { transform: rotate(45deg) translate(0,0); opacity: 0.5; }
  50% { transform: rotate(45deg) translate(4px,4px); opacity: 1; }
}

/* ═══════ SECTIONS ═══════ */
.section { padding: 100px 0; }
.section-dark { background: var(--bg-dark); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block; font-size: 11px; font-weight: 600;
  letter-spacing: 3px; color: var(--gold); margin-bottom: 16px; text-transform: uppercase;
}
.section-header h2 { font-family: 'Noto Serif SC', serif; font-size: clamp(28px, 5vw, 44px); font-weight: 700; margin-bottom: 16px; }
.section-header p { font-size: 16px; color: var(--text-dim); max-width: 650px; margin: 0 auto; }

/* ═══════ SEVEN BUSINESS TERRITORIES ═══════ */
.section-biz-map {
  background: linear-gradient(180deg, rgba(26,26,38,0.55) 0%, var(--bg) 45%, var(--bg) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.biz-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}
.biz-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: all .3s;
}
.biz-card:hover {
  border-color: var(--gold-dim);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.25);
}
.biz-icon { font-size: 32px; margin-bottom: 12px; line-height: 1; }
.biz-name { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.biz-keywords {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.55;
  margin-bottom: 14px;
  min-height: 2.8em;
}
.biz-agent-count {
  font-size: 12px;
  color: var(--text-muted);
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.biz-agent-count span {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  color: var(--gold);
}
@media (min-width: 1025px) {
  .biz-card:nth-child(5) { grid-column: 2; }
  .biz-card:nth-child(6) { grid-column: 3; }
  .biz-card:nth-child(7) { grid-column: 4; }
}
.biz-mission {
  background: linear-gradient(135deg, rgba(201,168,76,0.12), rgba(201,168,76,0.04));
  border: 1px solid var(--gold-dim);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}
.biz-mission-title {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(18px, 2.5vw, 24px);
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 12px;
  line-height: 1.45;
}
.biz-mission-sub {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.75;
  margin: 0;
}

/* ═══════ ARCHITECTURE ═══════ */
.arch-grid { display: flex; gap: 24px; align-items: stretch; }
.arch-card { flex: 1; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; transition: border-color .3s; }
.arch-card:hover { border-color: var(--gold-dim); }
.arch-card-header { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.arch-icon { font-size: 28px; }
.arch-badge { padding: 4px 12px; border-radius: 6px; font-size: 11px; font-weight: 700; letter-spacing: 2px; background: rgba(201,168,76,0.15); color: var(--gold); }
.sys2-badge { background: rgba(74,142,255,0.15); color: var(--accent); }
.arch-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.arch-desc { color: var(--text-dim); font-size: 14px; margin-bottom: 20px; }
.arch-features { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.arch-features li { display: flex; gap: 10px; align-items: flex-start; }
.feature-icon { font-size: 16px; flex-shrink: 0; margin-top: 2px; }
.arch-features strong { display: block; font-size: 14px; font-weight: 600; }
.arch-features span { display: block; font-size: 12px; color: var(--text-dim); }
.arch-bridge { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; min-width: 120px; }
.bridge-line { width: 2px; height: 30px; background: linear-gradient(180deg, var(--gold-dim), transparent); }
.bridge-label { font-size: 11px; font-weight: 600; color: var(--gold); text-align: center; white-space: nowrap; }
.bridge-items { display: flex; flex-direction: column; gap: 5px; align-items: center; }
.bridge-items span { font-size: 10px; color: var(--text-muted); padding: 2px 8px; border: 1px solid var(--border); border-radius: 4px; }

/* ═══════ 3-LAYER SOP ═══════ */
.sop-layers { display: flex; flex-direction: column; gap: 0; }
.sop-layer { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; overflow-x: auto; }
.sop-layer-header { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.sop-layer-header h3 { font-size: 18px; font-weight: 700; }
.sop-layer-tag {
  font-family: 'JetBrains Mono', monospace; font-size: 10px; font-weight: 700;
  letter-spacing: 2px; padding: 3px 10px; border-radius: 4px;
}
.sop-layer-data .sop-layer-tag { background: rgba(74,142,255,0.15); color: var(--accent); }
.sop-layer-data h3 { color: var(--accent); }
.sop-layer-analysis .sop-layer-tag { background: rgba(201,168,76,0.15); color: var(--gold); }
.sop-layer-analysis h3 { color: var(--gold); }
.sop-layer-decision .sop-layer-tag { background: rgba(62,207,142,0.15); color: var(--green); }
.sop-layer-decision h3 { color: var(--green); }
.sop-layer-steps { display: flex; align-items: center; gap: 8px; min-width: 700px; }
.sop-five-dim { flex-wrap: wrap; justify-content: center; gap: 12px; min-width: unset; }
.sop-step {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; min-width: 130px; text-align: center; transition: all .3s;
}
.sop-step:hover { border-color: var(--gold-dim); transform: translateY(-3px); }
.sop-step-id { font-family: 'JetBrains Mono', monospace; font-size: 16px; font-weight: 700; color: var(--gold); margin-bottom: 6px; }
.sop-step h4 { font-size: 14px; font-weight: 700; margin-bottom: 4px; }
.sop-step p { font-size: 11px; color: var(--text-dim); line-height: 1.4; }
.sop-step-core { border-color: var(--gold); background: rgba(201,168,76,0.08); min-width: 160px; }
.sop-step-dim { flex: 1; min-width: 120px; }
.sop-step-loop { border-color: var(--green); background: rgba(62,207,142,0.06); }
.sop-arrow { color: var(--text-muted); font-size: 18px; flex-shrink: 0; }
.sop-layer-connector { width: 2px; height: 24px; background: linear-gradient(180deg, var(--border), transparent); margin: 0 auto; }

/* ═══════ NUMBERS ═══════ */
.numbers-section { padding: 70px 0; }
.numbers-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.number-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; text-align: center; }
.number-value { font-family: 'JetBrains Mono', monospace; font-size: 52px; font-weight: 500; color: var(--gold); display: inline; }
.number-unit { display: inline; font-size: 18px; color: var(--text-dim); margin-left: 4px; }
.number-label { font-size: 15px; font-weight: 600; margin-top: 8px; }
.number-detail { font-size: 11px; color: var(--text-muted); margin-top: 6px; line-height: 1.5; }

/* ═══════ DATA ENGINE ═══════ */
.data-sources { margin-bottom: 48px; }
.ds-title { font-size: 18px; font-weight: 700; margin-bottom: 20px; text-align: center; }
.ds-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.ds-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; text-align: center; transition: all .3s; position: relative;
}
.ds-card:hover { border-color: var(--gold-dim); transform: translateY(-2px); }
.ds-icon { font-size: 28px; margin-bottom: 8px; }
.ds-name { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.ds-type { font-size: 12px; color: var(--text-dim); margin-bottom: 8px; }
.ds-badge { font-size: 10px; font-weight: 600; padding: 2px 8px; border-radius: 4px; display: inline-block; }
.ds-primary { background: rgba(201,168,76,0.15); color: var(--gold); }
.ds-secondary { background: rgba(74,142,255,0.15); color: var(--accent); }
.ds-info { background: rgba(62,207,142,0.15); color: var(--green); }

.cron-and-alert { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.cron-table, .alert-levels { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; }
.cron-table h3, .alert-levels h3 { font-size: 16px; font-weight: 700; margin-bottom: 16px; }
.cron-items { display: flex; flex-direction: column; gap: 10px; }
.cron-item { display: flex; gap: 12px; align-items: center; font-size: 13px; }
.cron-freq {
  font-family: 'JetBrains Mono', monospace; font-size: 11px; font-weight: 600;
  min-width: 70px; padding: 3px 8px; border-radius: 4px;
  background: rgba(124,92,252,0.15); color: var(--accent2); text-align: center;
}
.cron-task { color: var(--text-dim); }
.alert-item { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 16px; }
.alert-dot { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; margin-top: 4px; }
.alert-red .alert-dot { background: var(--red); box-shadow: 0 0 8px rgba(239,68,68,0.5); animation: alertPulse 2s infinite; }
.alert-yellow .alert-dot { background: var(--orange); }
.alert-blue .alert-dot { background: var(--accent); }
.alert-item strong { font-size: 14px; display: block; margin-bottom: 2px; }
.alert-item p { font-size: 12px; color: var(--text-dim); margin: 0; }
@keyframes alertPulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

/* ═══════ INVEST IN PEOPLE ═══════ */
.iip-philosophy {
  background: linear-gradient(135deg, rgba(201,168,76,0.08), rgba(201,168,76,0.02));
  border: 1px solid var(--gold-dim); border-radius: var(--radius-lg);
  padding: 40px; text-align: center; margin-bottom: 48px;
}
.iip-quote {
  font-family: 'Noto Serif SC', serif; font-size: clamp(20px, 3vw, 32px);
  font-weight: 700; color: var(--gold); margin-bottom: 16px;
}
.iip-philosophy p { font-size: 15px; color: var(--text-dim); max-width: 600px; margin: 0 auto; }
.iip-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 48px; }
.iip-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; text-align: center; transition: all .3s;
}
.iip-card:hover { border-color: var(--gold-dim); transform: translateY(-3px); }
.iip-card-score { border-color: var(--gold); background: rgba(201,168,76,0.06); }
.iip-icon { font-size: 28px; margin-bottom: 10px; }
.iip-card h4 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.iip-card p { font-size: 12px; color: var(--text-dim); line-height: 1.5; }
.redline-box {
  background: rgba(239,68,68,0.04); border: 1px solid rgba(239,68,68,0.3);
  border-radius: var(--radius-lg); padding: 32px;
}
.redline-box h3 { font-size: 16px; font-weight: 700; margin-bottom: 20px; text-align: center; color: var(--red); }
.redline-grid { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.redline-item {
  display: flex; align-items: center; gap: 8px;
  background: rgba(239,68,68,0.08); border: 1px solid rgba(239,68,68,0.2);
  border-radius: var(--radius); padding: 10px 16px; font-size: 13px;
}
.redline-flag {
  font-family: 'JetBrains Mono', monospace; font-size: 10px; font-weight: 700;
  color: var(--red); background: rgba(239,68,68,0.15); padding: 2px 6px; border-radius: 3px;
}

/* ═══════ DRAGON SCAN ═══════ */
.scan-pools { display: flex; gap: 24px; align-items: center; justify-content: center; margin-bottom: 48px; flex-wrap: wrap; }
.scan-pool {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 28px; text-align: center; flex: 1; min-width: 260px; max-width: 400px;
}
.scan-pool h3 { font-size: 18px; font-weight: 700; margin-bottom: 16px; }
.pool-items { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 12px; }
.pool-items span { font-size: 12px; padding: 4px 10px; border-radius: 4px; background: rgba(74,142,255,0.1); color: var(--accent); }
.pool-count { font-family: 'JetBrains Mono', monospace; font-size: 28px; font-weight: 700; color: var(--gold); }
.scan-plus { font-size: 32px; color: var(--gold); font-weight: 700; }

.tier-system { margin-bottom: 48px; }
.tier-system h3 { font-size: 18px; font-weight: 700; margin-bottom: 20px; text-align: center; }
.tier-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.tier-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 28px; text-align: center; transition: all .3s;
}
.tier-card:hover { transform: translateY(-3px); }
.tier-label { font-size: 13px; font-weight: 700; margin-bottom: 8px; }
.tier-t1 { border-color: var(--gold); }
.tier-t1 .tier-label { color: var(--gold); }
.tier-t2 { border-color: var(--accent); }
.tier-t2 .tier-label { color: var(--accent); }
.tier-t3 .tier-label { color: var(--text-dim); }
.tier-num { font-family: 'JetBrains Mono', monospace; font-size: 48px; font-weight: 500; color: var(--gold); display: inline; }
.tier-unit { display: inline; font-size: 18px; color: var(--text-dim); }
.tier-card p { font-size: 12px; color: var(--text-dim); margin-top: 8px; }

.scan-auto h3 { font-size: 18px; font-weight: 700; margin-bottom: 20px; text-align: center; }
.auto-items { display: flex; flex-direction: column; gap: 10px; max-width: 700px; margin: 0 auto; }
.auto-item {
  display: flex; align-items: center; gap: 12px; padding: 12px 16px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 13px; color: var(--text-dim);
}
.auto-label {
  font-family: 'JetBrains Mono', monospace; font-size: 10px; font-weight: 700;
  padding: 3px 8px; border-radius: 4px; min-width: 64px; text-align: center; flex-shrink: 0;
}
.auto-full .auto-label { background: rgba(62,207,142,0.15); color: var(--green); }
.auto-semi .auto-label { background: rgba(245,158,11,0.15); color: var(--orange); }
.auto-manual .auto-label { background: rgba(239,68,68,0.15); color: var(--red); }

/* ═══════ FUND SIMULATION ═══════ */
.fund-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 48px; }
.fund-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; text-align: center; transition: all .3s;
}
.fund-card:hover { border-color: var(--gold-dim); transform: translateY(-3px); }
.fund-card-special { border-color: var(--red); background: rgba(239,68,68,0.04); }
.fund-icon { font-size: 28px; margin-bottom: 10px; }
.fund-card h4 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.fund-meta { font-size: 11px; color: var(--gold); margin-bottom: 8px; }
.fund-card p { font-size: 12px; color: var(--text-dim); }

.backtest-metrics { margin-bottom: 48px; }
.backtest-metrics h3 { font-size: 18px; font-weight: 700; margin-bottom: 20px; text-align: center; }
.metrics-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.metric {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px; text-align: center;
}
.metric-name { font-size: 12px; color: var(--text-dim); margin-bottom: 4px; }
.metric-target { font-family: 'JetBrains Mono', monospace; font-size: 16px; font-weight: 700; color: var(--green); }

.backtest-phases { display: flex; align-items: center; gap: 12px; justify-content: center; flex-wrap: wrap; }
.bt-phase {
  display: flex; align-items: flex-start; gap: 12px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; max-width: 280px;
}
.bt-phase-special { border-color: var(--gold); background: rgba(201,168,76,0.06); }
.bt-num {
  font-family: 'JetBrains Mono', monospace; font-size: 20px; font-weight: 700;
  color: var(--gold); flex-shrink: 0; width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(201,168,76,0.1); border-radius: 50%;
}
.bt-phase strong { font-size: 14px; display: block; margin-bottom: 4px; }
.bt-phase p { font-size: 11px; color: var(--text-dim); margin: 0; }
.bt-arrow { color: var(--text-muted); font-size: 18px; flex-shrink: 0; }

/* ═══════ PERFORMANCE ═══════ */
.perf-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 48px; }
.perf-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; text-align: center; transition: all .3s;
}
.perf-card:hover { border-color: var(--gold-dim); transform: translateY(-2px); }
.perf-card-special { border-color: var(--gold); background: rgba(201,168,76,0.06); }
.perf-icon { font-size: 28px; margin-bottom: 10px; }
.perf-card h4 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.perf-card p { font-size: 12px; color: var(--text-dim); }

.report-system { margin-bottom: 48px; }
.report-system h3 { font-size: 18px; font-weight: 700; margin-bottom: 16px; text-align: center; }
.report-grid { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.report-item {
  display: flex; align-items: center; gap: 10px; padding: 10px 16px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); font-size: 13px; color: var(--text-dim);
}
.report-freq {
  font-family: 'JetBrains Mono', monospace; font-size: 11px; font-weight: 600;
  padding: 3px 8px; border-radius: 4px; background: rgba(201,168,76,0.1); color: var(--gold);
}

.evolution-loop h3 { font-size: 18px; font-weight: 700; margin-bottom: 20px; text-align: center; }
.evo-flow { display: flex; align-items: center; gap: 8px; justify-content: center; flex-wrap: wrap; }
.evo-step {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; text-align: center; min-width: 130px;
}
.evo-step strong { font-size: 13px; display: block; margin-bottom: 4px; }
.evo-step p { font-size: 11px; color: var(--text-dim); margin: 0; }
.evo-step-deploy { border-color: var(--green); background: rgba(62,207,142,0.06); }
.evo-arrow { color: var(--text-muted); font-size: 16px; flex-shrink: 0; }

/* ═══════ PARTNERS ═══════ */
.partners-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.partner-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; transition: all .3s; position: relative; overflow: hidden; text-align: center;
}
.partner-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-dim)); opacity: 0; transition: opacity .3s;
}
.partner-card:hover { border-color: var(--gold-dim); transform: translateY(-3px); }
.partner-card:hover::before { opacity: 1; }
.partner-rank { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--text-muted); margin-bottom: 8px; }
.partner-avatar { font-size: 32px; margin-bottom: 8px; }
.partner-role { font-size: 11px; color: var(--gold); font-weight: 500; margin-bottom: 4px; }
.partner-name { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.partner-skills { font-size: 11px; color: var(--text-dim); margin-bottom: 10px; }
.partner-quote { font-style: italic; font-size: 11px; color: var(--text-muted); padding-top: 10px; border-top: 1px solid var(--border); }

/* ═══════ ROADMAP ═══════ */
.timeline { max-width: 700px; margin: 0 auto; position: relative; }
.timeline::before { content: ''; position: absolute; left: 16px; top: 0; bottom: 0; width: 2px; background: var(--border); }
.tl-item { display: flex; gap: 20px; margin-bottom: 28px; position: relative; }
.tl-marker {
  width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
  border: 2px solid var(--border); background: var(--bg);
  display: flex; align-items: center; justify-content: center; z-index: 1;
}
.tl-active .tl-marker { border-color: var(--gold); background: rgba(201,168,76,0.15); }
.tl-active .tl-marker::after { content: ''; width: 10px; height: 10px; border-radius: 50%; background: var(--gold); }
.tl-content { padding-bottom: 4px; }
.tl-phase { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--text-muted); margin-bottom: 2px; }
.tl-content h4 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.tl-content p { font-size: 13px; color: var(--text-dim); }
.tl-status { display: inline-block; font-size: 10px; font-weight: 600; padding: 2px 8px; border-radius: 4px; margin-top: 6px; }
.tl-status.done { background: rgba(62,207,142,0.15); color: var(--green); }
.tl-status.current { background: rgba(201,168,76,0.15); color: var(--gold); }

/* ═══════ TECH STACK (七层) ═══════ */
.tech-stack-flow {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
}
.tech-layer-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  position: relative;
  transition: border-color .25s, box-shadow .25s;
}
.tech-layer-card:hover {
  border-color: rgba(201,168,76,0.35);
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
}
.tech-layer-card-accent {
  border-color: rgba(201,168,76,0.25);
  background: linear-gradient(145deg, rgba(201,168,76,0.08), var(--bg-card));
}
.tech-layer-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.tech-layer-id {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--bg);
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  padding: 3px 8px;
  border-radius: 6px;
  letter-spacing: 0.02em;
}
.tech-layer-icon { font-size: 22px; line-height: 1; }
.tech-layer-title {
  font-size: 17px;
  font-weight: 700;
  margin: 0;
  color: var(--text);
}
.tech-layer-tech {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--gold);
  margin-bottom: 8px;
}
.tech-layer-desc {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.65;
  margin: 0;
}
.tech-layer-arrow {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 28px;
  flex-shrink: 0;
}
.tech-layer-arrow span {
  display: block;
  width: 2px;
  height: 100%;
  min-height: 20px;
  background: linear-gradient(180deg, var(--gold-dim), var(--border));
  border-radius: 2px;
  position: relative;
}
.tech-layer-arrow span::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 8px solid var(--gold-dim);
}
.tech-stack-extras {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}
.tech-extras-title {
  font-size: 15px;
  font-weight: 700;
  text-align: center;
  color: var(--text-dim);
  margin-bottom: 20px;
}
.tech-extras-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 12px;
}
.tech-extra-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 10px 16px;
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.4;
}
.tech-extra-chip strong {
  color: var(--gold);
  font-weight: 600;
  margin-right: 6px;
}

/* ═══════ FOOTER ═══════ */
.footer { padding: 60px 0; border-top: 1px solid var(--border); }
.footer-content { text-align: center; }
.footer-content p { color: var(--text-dim); font-size: 13px; margin-top: 16px; }
.footer-line { width: 60px; height: 1px; background: var(--border); margin: 24px auto; }
.footer-copy { font-size: 12px; color: var(--text-muted); }

/* ═══════ SUBPAGES / LINK CARDS ═══════ */
.subpage-hero {
  padding-top: 130px;
  min-height: calc(100vh - 120px);
}
.page-link-card {
  text-decoration: none;
  color: inherit;
  display: block;
}
.page-link-card:hover .biz-name { color: var(--gold); }
.subpage-hero .biz-card:nth-child(5),
.subpage-hero .biz-card:nth-child(6),
.subpage-hero .biz-card:nth-child(7) {
  grid-column: auto;
}

/* ═══════ ORG CHART ═══════ */
.org-chart {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 28px;
}
.org-level {
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: 14px;
  flex-wrap: wrap;
}
.org-node {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  text-align: center;
  font-size: 13px;
  color: var(--text);
  min-width: 180px;
}
.org-top .org-node {
  border-color: var(--gold-dim);
  background: rgba(201,168,76,0.08);
  font-weight: 700;
  min-width: 220px;
}
.org-mid .org-node {
  border-color: rgba(74,142,255,0.35);
}
.org-bottom .org-node span {
  display: block;
  margin-top: 4px;
  color: var(--text-dim);
  font-size: 11px;
}
.gov-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

/* ═══════ DUAL PATH ═══════ */
.dual-path {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}
.dual-path .bt-phase {
  max-width: 340px;
}
.path-industry-link {
  margin-top: 20px;
  text-align: center;
}

/* ═══════ ANIMATIONS ═══════ */
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity .6s, transform .6s; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .1s; }
.delay-2 { transition-delay: .2s; }
.delay-3 { transition-delay: .3s; }
.delay-4 { transition-delay: .4s; }
.delay-5 { transition-delay: .5s; }

/* ═══════ MEETING GOVERNANCE (五大会议 + 六步管线) ═══════ */
.meet-subtitle {
  font-size: 16px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  color: var(--gold);
}
.meet-pipeline {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 20px 32px;
  margin-bottom: 40px;
}
.meet-pipeline-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  justify-content: center;
  gap: 10px 8px;
}
.meet-p-step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 12px;
  min-width: 118px;
  max-width: 140px;
  text-align: center;
  transition: border-color .25s;
}
.meet-p-step:hover { border-color: var(--gold-dim); }
.meet-p-step-final {
  border-color: rgba(62,207,142,0.35);
  background: rgba(62,207,142,0.06);
}
.meet-p-num {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 6px;
}
.meet-p-step strong { font-size: 13px; display: block; margin-bottom: 4px; }
.meet-p-step p { font-size: 11px; color: var(--text-dim); line-height: 1.35; margin: 0; }
.meet-p-arrow {
  align-self: center;
  color: var(--text-muted);
  font-size: 14px;
  padding: 0 2px;
}
.meet-five-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}
.meet-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 16px;
  transition: all .3s;
}
.meet-card:hover {
  border-color: var(--gold-dim);
  transform: translateY(-2px);
}
.meet-card-icon { font-size: 26px; margin-bottom: 10px; }
.meet-card h4 { font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.meet-card-tag {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
}
.meet-card p:last-child { font-size: 12px; color: var(--text-dim); line-height: 1.55; margin: 0; }

/* ═══════ RESPONSIVE ═══════ */
@media (max-width: 1024px) {
  .biz-grid { grid-template-columns: repeat(2, 1fr); }
  .biz-card:nth-child(5),
  .biz-card:nth-child(6),
  .biz-card:nth-child(7) { grid-column: auto; }
  .biz-keywords { min-height: unset; }
  .arch-grid { flex-direction: column; }
  .arch-bridge { flex-direction: row; min-width: unset; }
  .bridge-line { width: 40px; height: 2px; }
  .bridge-items { flex-direction: row; }
  .partners-grid { grid-template-columns: repeat(3, 1fr); }
  .numbers-grid { grid-template-columns: repeat(2, 1fr); }
  .meet-five-grid { grid-template-columns: repeat(2, 1fr); }
  .meet-five-grid .meet-card:last-child { grid-column: 1 / -1; }
  .iip-grid { grid-template-columns: repeat(2, 1fr); }
  .ds-grid { grid-template-columns: repeat(2, 1fr); }
  .fund-grid { grid-template-columns: repeat(2, 1fr); }
  .metrics-grid { grid-template-columns: repeat(3, 1fr); }
  .perf-grid { grid-template-columns: repeat(2, 1fr); }
  .tier-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .hero-stats { gap: 20px; }
  .stat-num { font-size: 32px; }
  .biz-grid { grid-template-columns: 1fr; }
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .numbers-grid { grid-template-columns: 1fr 1fr; }
  .meet-five-grid { grid-template-columns: 1fr; }
  .meet-five-grid .meet-card:last-child { grid-column: auto; }
  .meet-p-arrow { display: none; }
  .meet-pipeline-flow { flex-direction: column; align-items: center; }
  .meet-p-step { max-width: 100%; width: 100%; }
  .iip-grid { grid-template-columns: 1fr; }
  .ds-grid { grid-template-columns: 1fr; }
  .cron-and-alert { grid-template-columns: 1fr; }
  .fund-grid { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .perf-grid { grid-template-columns: 1fr; }
  .tier-grid { grid-template-columns: 1fr; }
  .scan-pools { flex-direction: column; }
  .scan-plus { transform: rotate(90deg); }
  .sop-layer-steps { min-width: unset; flex-wrap: wrap; justify-content: center; }
  .sop-five-dim { min-width: unset; }
  .backtest-phases { flex-direction: column; align-items: center; }
  .bt-arrow { transform: rotate(90deg); }
  .evo-flow { flex-direction: column; align-items: center; }
  .evo-arrow { transform: rotate(90deg); }
  .report-grid { flex-direction: column; }
}