/* =========================================
   YongDa.Ai 数字化3.0战略蓝图 - 高层汇报视觉
   ========================================= */

/* ---------- 基础变量 ---------- */
:root {
  --primary: #1a3a5c;
  --primary-light: #2a5a8c;
  --primary-dark: #0d1f33;
  --accent: #00b4d8;
  --accent-light: #48cae4;
  --accent-dark: #0096c7;
  --gold: #d4a843;
  --gold-light: #e8c868;
  --danger: #e74c3c;
  --warning: #f39c12;
  --success: #27ae60;
  --info: #3498db;
  --text: #1a1a2e;
  --text-light: #4a4a6a;
  --text-muted: #8888a0;
  --bg: #f8f9fc;
  --bg-alt: #eef1f8;
  --card-bg: #ffffff;
  --border: #e0e4ef;
  --shadow: 0 4px 24px rgba(26,58,92,0.08);
  --shadow-lg: 0 12px 48px rgba(26,58,92,0.12);
  --shadow-xl: 0 20px 60px rgba(26,58,92,0.16);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --nav-h: 64px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* ---------- 全局重置 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; scroll-padding-top: var(--nav-h); }
body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---------- 顶部导航 ---------- */
.top-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  height: var(--nav-h);
  transition: var(--transition);
}
.top-nav.scrolled {
  background: rgba(255,255,255,0.98);
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}
.nav-inner {
  max-width: 1440px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  height: 100%; padding: 0 24px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 16px;
}
.logo-text { font-weight: 700; font-size: 18px; color: var(--primary); }
.logo-divider { width: 1px; height: 20px; background: var(--border); }
.logo-sub { font-size: 13px; color: var(--text-muted); font-weight: 400; }

.nav-links {
  display: flex; gap: 4px; overflow-x: auto;
  scrollbar-width: none; -ms-overflow-style: none;
  padding: 0 12px;
}
.nav-links::-webkit-scrollbar { display: none; }
.nav-link {
  padding: 6px 12px; font-size: 13px; white-space: nowrap;
  border-radius: var(--radius-xs); color: var(--text-light);
  transition: var(--transition); font-weight: 500;
}
.nav-link:hover { color: var(--primary); background: var(--bg-alt); }
.nav-link.active {
  color: var(--accent-dark); background: rgba(0,180,216,0.08);
  font-weight: 600;
}

.nav-meta { display: flex; gap: 8px; flex-shrink: 0; }
.version-badge, .date-badge {
  padding: 4px 10px; border-radius: 20px; font-size: 11px; font-weight: 600;
}
.version-badge { background: var(--primary); color: #fff; }
.date-badge { background: var(--bg-alt); color: var(--text-muted); }

.mobile-toggle {
  display: none; background: none; border: none;
  font-size: 20px; color: var(--primary); cursor: pointer;
}

/* ---------- 侧边进度 ---------- */
.side-progress {
  position: fixed; right: 24px; top: 50%;
  transform: translateY(-50%); z-index: 900;
  display: flex; flex-direction: column; align-items: center; gap: 0;
}
.progress-track {
  width: 3px; height: 280px; background: var(--border);
  border-radius: 3px; position: relative; margin-bottom: 0;
}
.progress-fill {
  position: absolute; top: 0; left: 0; width: 100%;
  background: linear-gradient(180deg, var(--accent), var(--gold));
  border-radius: 3px; transition: height 0.3s ease;
  height: 0%;
}
.progress-dots {
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  height: 280px; display: flex; flex-direction: column; justify-content: space-between;
}
.dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--border); border: 2px solid #fff;
  cursor: pointer; transition: var(--transition);
  position: relative;
}
.dot.active { background: var(--accent); box-shadow: 0 0 8px rgba(0,180,216,0.4); }
.dot:hover::after {
  content: attr(title); position: absolute; right: 20px; top: 50%;
  transform: translateY(-50%); background: var(--primary-dark); color: #fff;
  padding: 4px 10px; border-radius: 6px; font-size: 12px; white-space: nowrap;
}

/* ==================== 首屏 Hero ==================== */
.hero-section {
  min-height: 100vh; position: relative; overflow: hidden;
  background: linear-gradient(135deg, #0a1628 0%, #132743 30%, #1a3a5c 60%, #0d2137 100%);
  display: flex; align-items: center; justify-content: center;
  padding: 100px 24px 60px;
}
.hero-particles {
  position: absolute; inset: 0; overflow: hidden; opacity: 0.3;
}
.hero-content {
  position: relative; z-index: 2; max-width: 1100px; width: 100%;
  text-align: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 20px; border-radius: 30px;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.7); font-size: 13px; margin-bottom: 32px;
}
.badge-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--danger); animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%,100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-title { margin-bottom: 24px; }
.title-line1 {
  display: block; font-size: clamp(32px,5vw,56px); font-weight: 900;
  background: linear-gradient(135deg, #fff, var(--accent-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; letter-spacing: 2px; line-height: 1.2;
}
.title-line2 {
  display: block; font-size: clamp(22px,3.5vw,40px); font-weight: 700;
  color: rgba(255,255,255,0.9); line-height: 1.3; margin-top: 8px;
}
.title-line2 .highlight {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; font-weight: 900;
}

.hero-subtitle {
  font-size: clamp(15px,2vw,19px); color: rgba(255,255,255,0.65);
  max-width: 750px; margin: 0 auto 48px; line-height: 1.8;
}
.hero-subtitle strong { color: var(--accent-light); }

/* Hero Pillars */
.hero-pillars {
  display: flex; align-items: center; justify-content: center;
  gap: 20px; margin-bottom: 48px; flex-wrap: wrap;
}
.pillar-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius); padding: 28px 32px;
  min-width: 200px; transition: var(--transition);
}
.pillar-card:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.2);
}
.pillar-card.accent { border-color: rgba(0,180,216,0.3); }
.pillar-card.gold { border-color: rgba(212,168,67,0.3); }
.pillar-icon { font-size: 32px; margin-bottom: 12px; }
.pillar-card .pillar-icon { color: var(--accent-light); }
.pillar-card.accent .pillar-icon { color: var(--accent); }
.pillar-card.gold .pillar-icon { color: var(--gold-light); }
.pillar-label { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 6px; }
.pillar-desc { font-size: 13px; color: rgba(255,255,255,0.5); }
.pillar-connector {
  font-size: 20px; color: rgba(255,255,255,0.25);
}

/* Hero Stats */
.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 16px; margin-bottom: 48px;
}
.stat-item {
  display: flex; align-items: center; gap: 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm); padding: 16px 20px;
  text-align: left;
}
.stat-icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: #fff; flex-shrink: 0;
}
.stat-label { font-size: 14px; font-weight: 600; color: #fff; }
.stat-desc { font-size: 12px; color: rgba(255,255,255,0.45); margin-top: 2px; }

/* Hero Flywheel */
.hero-flywheel {
  margin-bottom: 48px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius); padding: 40px;
}
.flywheel-title {
  font-size: 20px; color: rgba(255,255,255,0.8);
  margin-bottom: 32px; font-weight: 600;
}
.flywheel-visual {
  position: relative; width: 320px; height: 320px;
  margin: 0 auto;
}
.flywheel-ring {
  position: absolute; border-radius: 50%;
  border: 2px solid; display: flex;
  align-items: center; justify-content: center;
  animation: spin-slow 30s linear infinite;
}
.ring-outer {
  inset: 0; border-color: rgba(0,180,216,0.3);
}
.ring-middle {
  inset: 45px; border-color: rgba(212,168,67,0.3);
}
.ring-inner {
  inset: 90px; border-color: rgba(39,174,96,0.3);
}
.ring-label {
  position: absolute; top: -12px; left: 50%;
  transform: translateX(-50%); background: var(--primary-dark);
  padding: 2px 12px; border-radius: 10px;
  font-size: 11px; white-space: nowrap;
  animation: spin-slow 30s linear infinite reverse;
}
.ring-outer .ring-label { color: var(--accent-light); }
.ring-middle .ring-label { color: var(--gold-light); }
.ring-inner .ring-label { color: var(--success); }
.ring-item {
  position: absolute; font-size: 11px; white-space: nowrap;
  padding: 3px 8px; border-radius: 8px;
  animation: spin-slow 30s linear infinite reverse;
}
.ring-outer .ring-item { color: rgba(0,180,216,0.7); }
.ring-middle .ring-item { color: rgba(212,168,67,0.7); }
.ring-inner .ring-item { color: rgba(39,174,96,0.7); }
.ring-item.r1 { top: 50%; left: -10px; transform: translateY(-50%); }
.ring-item.r2 { bottom: -10px; left: 50%; transform: translateX(-50%); }
.ring-item.r3 { top: 50%; right: -10px; transform: translateY(-50%); }
.flywheel-center {
  position: absolute; inset: 120px;
  background: linear-gradient(135deg, var(--primary), var(--accent-dark));
  border-radius: 50%; display: flex;
  flex-direction: column; align-items: center; justify-content: center;
  color: #fff; font-size: 12px; text-align: center;
}
.flywheel-center i { font-size: 24px; margin-bottom: 4px; color: var(--gold-light); }
@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.hero-scroll {
  display: inline-flex; flex-direction: column;
  align-items: center; gap: 8px;
  color: rgba(255,255,255,0.4); font-size: 13px;
  animation: bounce-down 2s infinite;
}
@keyframes bounce-down {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* ==================== 通用内容区 ==================== */
.content-section {
  padding: 100px 24px;
}
.content-section.alt-bg { background: var(--bg-alt); }
.section-container { max-width: 1200px; margin: 0 auto; }

.section-header { text-align: center; margin-bottom: 64px; }
.section-number {
  display: inline-block; padding: 6px 20px;
  border-radius: 30px; font-size: 13px; font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--accent-dark));
  color: #fff; margin-bottom: 16px; letter-spacing: 1px;
}
.section-title {
  font-size: clamp(24px,3.5vw,36px); font-weight: 800;
  color: var(--primary-dark); line-height: 1.4; margin-bottom: 16px;
}
.section-line {
  width: 60px; height: 4px; border-radius: 4px;
  background: linear-gradient(90deg, var(--accent), var(--gold));
  margin: 0 auto;
}

.subsection { margin-bottom: 64px; }
.subsection:last-child { margin-bottom: 0; }
.subsection-title {
  font-size: 22px; font-weight: 700; color: var(--primary);
  margin-bottom: 32px; display: flex; align-items: center; gap: 12px;
}
.sub-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff; font-size: 14px; font-weight: 700; flex-shrink: 0;
}

/* ==================== 前言 ==================== */
.preface-content { max-width: 1000px; margin: 0 auto; }
.preface-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 32px; box-shadow: var(--shadow);
  border: 1px solid var(--border); transition: var(--transition);
}
.preface-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.preface-card.main-card {
  margin-bottom: 32px; text-align: center;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff; border: none;
}
.preface-card.main-card h3 { color: var(--gold-light); font-size: 20px; margin: 16px 0; }
.preface-card.main-card p { color: rgba(255,255,255,0.8); font-size: 16px; }
.preface-icon {
  width: 56px; height: 56px; border-radius: 16px;
  background: rgba(255,255,255,0.1);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 24px; color: var(--accent-light);
}
.preface-card:not(.main-card) .preface-icon {
  background: var(--bg-alt); color: var(--accent); margin-bottom: 16px;
}
.question-box {
  background: rgba(255,255,255,0.08); border-radius: var(--radius-sm);
  padding: 24px; margin-top: 20px; border-left: 4px solid var(--gold);
}
.question-box p { font-size: 17px; font-weight: 500; line-height: 1.8; }
.preface-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.preface-grid .preface-card h3 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.preface-grid .preface-card p { color: var(--text-light); font-size: 15px; }

/* ==================== 1.1 逻辑流程 ==================== */
.logic-flow {
  display: flex; align-items: stretch; gap: 16px;
  flex-wrap: wrap; justify-content: center;
}
.logic-card {
  flex: 1; min-width: 260px; background: var(--card-bg);
  border-radius: var(--radius); padding: 32px;
  box-shadow: var(--shadow); border: 1px solid var(--border);
  text-align: center; position: relative; transition: var(--transition);
}
.logic-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.logic-step {
  position: absolute; top: -14px; left: 50%;
  transform: translateX(-50%); width: 32px; height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff; font-size: 13px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.logic-icon { font-size: 36px; color: var(--accent); margin-bottom: 16px; }
.logic-card h4 { font-size: 20px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.logic-card p { color: var(--text-light); font-size: 15px; }
.logic-arrow {
  display: flex; align-items: center;
  font-size: 24px; color: var(--accent);
}

/* ==================== 1.2 愿景转型 ==================== */
.vision-statement {
  display: flex; align-items: stretch; gap: 0;
  flex-wrap: wrap; justify-content: center;
}
.vision-from, .vision-to {
  flex: 1; min-width: 280px; padding: 36px;
  border-radius: var(--radius);
}
.vision-from {
  background: linear-gradient(135deg, #fce4e4, #fdf2f2);
  border: 1px solid #f5c6c6;
}
.vision-to {
  background: linear-gradient(135deg, #e0f7fa, #f0fdff);
  border: 1px solid #b2ebf2;
}
.vision-tag {
  display: inline-block; padding: 4px 14px; border-radius: 20px;
  font-size: 12px; font-weight: 700; margin-bottom: 12px;
  background: var(--danger); color: #fff;
}
.vision-tag.accent { background: var(--accent); }
.vision-from h4, .vision-to h4 { font-size: 18px; font-weight: 700; margin-bottom: 16px; color: var(--primary); }
.vision-from li, .vision-to li {
  padding: 8px 0; font-size: 15px; color: var(--text-light);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  padding-left: 20px; position: relative;
}
.vision-from li::before { content: '✗'; position: absolute; left: 0; color: var(--danger); font-weight: 700; }
.vision-to li::before { content: '✓'; position: absolute; left: 0; color: var(--success); font-weight: 700; }
.vision-arrow {
  display: flex; align-items: center; justify-content: center;
  padding: 0 24px;
}
.arrow-body {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--accent); font-weight: 700; font-size: 14px;
}
.arrow-body i { font-size: 32px; }

/* ==================== 飞轮详情 ==================== */
.flywheel-detail {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.fw-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 36px; text-align: center; box-shadow: var(--shadow);
  border: 1px solid var(--border); transition: var(--transition);
}
.fw-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.fw-icon {
  width: 64px; height: 64px; border-radius: 20px;
  background: linear-gradient(135deg, var(--primary), var(--accent-dark));
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 28px; color: #fff; margin-bottom: 20px;
}
.fw-card h4 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.fw-card p { color: var(--text-light); font-size: 14px; line-height: 2; }

/* ==================== 双核驱动 ==================== */
.dual-core {
  display: flex; align-items: stretch; gap: 0;
  justify-content: center; flex-wrap: wrap;
}
.core-card {
  flex: 1; min-width: 300px; padding: 40px;
  border-radius: var(--radius); box-shadow: var(--shadow);
  border: 1px solid var(--border); transition: var(--transition);
}
.core-card:hover { box-shadow: var(--shadow-lg); }
.core-left { background: linear-gradient(135deg, #f0f9ff, #e8f4fd); border-color: #bce0f7; }
.core-right { background: linear-gradient(135deg, #fdf8f0, #fef5e7); border-color: #f5deb3; }
.core-badge {
  display: inline-block; padding: 4px 14px; border-radius: 20px;
  font-size: 12px; font-weight: 700; background: var(--primary); color: #fff;
  margin-bottom: 16px;
}
.core-icon { font-size: 40px; margin-bottom: 16px; }
.core-left .core-icon { color: var(--accent); }
.core-right .core-icon { color: var(--gold); }
.core-card h4 { font-size: 20px; font-weight: 700; color: var(--primary); margin-bottom: 16px; }
.core-card li {
  padding: 10px 0; font-size: 15px; color: var(--text-light);
  border-bottom: 1px dashed var(--border);
  padding-left: 24px; position: relative;
}
.core-card li::before {
  content: '▸'; position: absolute; left: 4px; color: var(--accent);
  font-weight: 700;
}
.core-connect {
  display: flex; align-items: center; justify-content: center; padding: 0 24px;
}
.connect-circle {
  width: 80px; height: 80px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent-dark));
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  color: #fff; font-size: 12px; text-align: center;
  animation: pulse-connect 3s infinite;
}
.connect-circle i { font-size: 20px; margin-bottom: 4px; }
@keyframes pulse-connect {
  0%,100% { box-shadow: 0 0 0 0 rgba(0,180,216,0.3); }
  50% { box-shadow: 0 0 0 12px rgba(0,180,216,0); }
}

/* ==================== 威胁卡片 ==================== */
.threat-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.threat-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 32px; box-shadow: var(--shadow);
  border-top: 4px solid; transition: var(--transition);
}
.threat-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.threat-card.danger { border-color: var(--danger); }
.threat-card.warning { border-color: var(--warning); }
.threat-card.info { border-color: var(--info); }
.threat-icon {
  width: 48px; height: 48px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 16px;
}
.threat-card.danger .threat-icon { background: #fdecea; color: var(--danger); }
.threat-card.warning .threat-icon { background: #fef9e7; color: var(--warning); }
.threat-card.info .threat-icon { background: #eaf2f8; color: var(--info); }
.threat-card h4 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.threat-card p { font-size: 14px; color: var(--text-light); }

/* ==================== 痛点卡片 ==================== */
.pain-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
}
.pain-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 32px; box-shadow: var(--shadow);
  border: 1px solid var(--border); transition: var(--transition);
}
.pain-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.pain-num {
  display: inline-block; padding: 4px 12px; border-radius: 6px;
  font-size: 12px; font-weight: 700; background: #fdecea;
  color: var(--danger); margin-bottom: 12px;
}
.pain-card h4 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.pain-card p { font-size: 14px; color: var(--text-light); }

/* ==================== 破局点 ==================== */
.breakthrough-box {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 48px; box-shadow: var(--shadow); border: 1px solid var(--border);
}
.bt-center { text-align: center; margin-bottom: 32px; }
.bt-core {
  display: inline-flex; flex-direction: column; align-items: center; gap: 8px;
}
.bt-core i {
  font-size: 36px; color: var(--gold);
}
.bt-core h4 { font-size: 20px; font-weight: 700; color: var(--primary); }
.bt-items { display: flex; flex-direction: column; gap: 20px; }
.bt-item {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 20px; border-radius: var(--radius-sm);
  background: var(--bg-alt); border-left: 4px solid var(--accent);
}
.bt-num {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700; flex-shrink: 0;
}
.bt-item p { font-size: 15px; color: var(--text-light); }

/* ==================== 链上论证 ==================== */
.chain-reasons {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
}
.chain-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 32px; box-shadow: var(--shadow);
  border: 1px solid var(--border); transition: var(--transition);
}
.chain-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.chain-icon {
  width: 48px; height: 48px; border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--accent-dark));
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; color: #fff; margin-bottom: 16px;
}
.chain-card h4 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.chain-card p { font-size: 14px; color: var(--text-light); }

/* ==================== 矛盾卡片 ==================== */
.contradictions { display: flex; flex-direction: column; gap: 40px; }
.contradiction-card {
  background: var(--card-bg); border-radius: var(--radius);
  box-shadow: var(--shadow); border: 1px solid var(--border);
  overflow: hidden;
}
.contra-header {
  padding: 24px 32px; background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
}
.contra-num {
  display: inline-block; padding: 4px 14px; border-radius: 20px;
  background: rgba(255,255,255,0.15); font-size: 13px;
  font-weight: 600; margin-bottom: 8px;
}
.contra-header h3 { font-size: 18px; font-weight: 700; }
.vs { color: var(--gold-light); margin: 0 8px; }
.contra-body {
  display: grid; grid-template-columns: 1fr 1.5fr 1fr;
  gap: 24px; padding: 32px;
}
.contra-side {
  padding: 24px; border-radius: var(--radius-sm);
}
.contra-side.left { background: #fef5f5; }
.contra-side.right { background: #f0f9ff; }
.contra-side h4 {
  font-size: 15px; font-weight: 700; color: var(--primary);
  margin-bottom: 12px; display: flex; align-items: center; gap: 8px;
}
.contra-side p { font-size: 14px; color: var(--text-light); }
.contra-solution {
  padding: 24px; background: linear-gradient(135deg, #f0fff0, #e8fce8);
  border-radius: var(--radius-sm); border: 1px dashed var(--success);
  text-align: center;
}
.solution-icon {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--success); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 18px; margin-bottom: 12px;
}
.contra-solution h4 { font-size: 15px; font-weight: 700; color: var(--success); margin-bottom: 12px; }
.contra-solution p { font-size: 14px; color: var(--text-light); }

/* ==================== 飞轮链条 ==================== */
.flywheel-chain {
  display: flex; align-items: stretch; gap: 12px;
  flex-wrap: wrap; justify-content: center;
}
.chain-step {
  flex: 1; min-width: 180px; background: var(--card-bg);
  border-radius: var(--radius); padding: 28px;
  box-shadow: var(--shadow); border: 1px solid var(--border);
  text-align: center; transition: var(--transition);
}
.chain-step:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.chain-num {
  width: 36px; height: 36px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff; display: inline-flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 700; margin-bottom: 12px;
}
.chain-step h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.chain-step p { font-size: 13px; color: var(--text-muted); }
.chain-arrow { display: flex; align-items: center; color: var(--accent); font-size: 18px; }

/* ==================== 业务闭环 ==================== */
.biz-loop {
  max-width: 700px; margin: 0 auto;
}
.loop-item {
  display: flex; gap: 24px; align-items: center;
  background: var(--card-bg); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.loop-phase {
  width: 80px; height: 80px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent-dark));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 700; flex-shrink: 0;
}
.loop-detail { flex: 1; }
.loop-detail p { font-size: 15px; color: var(--text-light); margin-bottom: 8px; }
.loop-tag {
  display: inline-block; padding: 3px 10px; border-radius: 4px;
  background: var(--bg-alt); font-size: 12px; color: var(--accent);
  font-weight: 600;
}
.loop-connector {
  text-align: center; padding: 8px; color: var(--accent); font-size: 20px;
}
.loop-back {
  text-align: center; padding: 16px; margin-top: 8px;
  background: linear-gradient(135deg, rgba(0,180,216,0.05), rgba(212,168,67,0.05));
  border-radius: var(--radius-sm); border: 1px dashed var(--accent);
  color: var(--accent); font-size: 14px; font-weight: 600;
}
.loop-back i { margin-right: 8px; }

/* ==================== 组织飞轮 ==================== */
.org-flywheel {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.org-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 32px; box-shadow: var(--shadow);
  border: 1px solid var(--border); text-align: center;
  transition: var(--transition);
}
.org-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.org-icon {
  width: 56px; height: 56px; border-radius: 16px;
  background: var(--bg-alt); display: inline-flex;
  align-items: center; justify-content: center;
  font-size: 24px; color: var(--accent); margin-bottom: 16px;
}
.org-card h4 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.org-card p { font-size: 14px; color: var(--text-light); }

/* ==================== 全景 ==================== */
.system-panorama { max-width: 800px; margin: 0 auto; }
.panorama-visual {
  position: relative; padding: 40px;
  background: var(--card-bg); border-radius: var(--radius);
  box-shadow: var(--shadow); border: 1px solid var(--border);
}
.p-ring {
  padding: 20px 24px; border-radius: var(--radius-sm);
  margin-bottom: 16px; display: flex; align-items: center; gap: 16px;
}
.p-brand { background: #e0f7fa; border-left: 4px solid var(--accent); }
.p-biz { background: #fef9e7; border-left: 4px solid var(--gold); }
.p-org { background: #e8f5e9; border-left: 4px solid var(--success); }
.p-label { font-weight: 700; font-size: 15px; color: var(--primary); min-width: 80px; }
.p-desc { font-size: 14px; color: var(--text-light); }
.p-center {
  margin-top: 24px; padding: 24px; text-align: center;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: var(--radius-sm); color: #fff;
}
.p-center strong { font-size: 18px; display: block; margin-bottom: 8px; color: var(--gold-light); }
.p-center p { font-size: 14px; color: rgba(255,255,255,0.7); }

/* ==================== 案例卡片 ==================== */
.case-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.case-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 32px; box-shadow: var(--shadow);
  border: 1px solid var(--border); transition: var(--transition);
}
.case-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.case-icon { font-size: 36px; color: var(--accent); margin-bottom: 16px; }
.case-card h4 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.case-card p { font-size: 14px; color: var(--text-light); }

/* ==================== 品牌目标 ==================== */
.brand-goals {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.goal-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 36px; box-shadow: var(--shadow);
  border: 1px solid var(--border); text-align: center;
  transition: var(--transition);
}
.goal-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.goal-icon {
  width: 64px; height: 64px; border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 28px; color: #fff; margin-bottom: 20px;
}
.goal-card h4 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.goal-card p { font-size: 14px; color: var(--text-light); }

/* ==================== 营销闭环 ==================== */
.marketing-loop {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.mkt-card {
  border-radius: var(--radius); padding: 32px;
  box-shadow: var(--shadow); border: 1px solid var(--border);
  transition: var(--transition);
}
.mkt-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.mkt-card.social { background: linear-gradient(135deg, #e0f7fa, #f0fdff); border-color: #b2ebf2; }
.mkt-card.internal { background: linear-gradient(135deg, #e8f5e9, #f0fff0); border-color: #c8e6c9; }
.mkt-card.user { background: linear-gradient(135deg, #fef9e7, #fffdf0); border-color: #f5deb3; }
.mkt-badge {
  display: inline-block; padding: 4px 14px; border-radius: 20px;
  font-size: 12px; font-weight: 700; background: var(--primary);
  color: #fff; margin-bottom: 12px;
}
.mkt-card h4 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 16px; }
.mkt-card li {
  padding: 8px 0; font-size: 14px; color: var(--text-light);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  padding-left: 20px; position: relative;
}
.mkt-card li::before { content: '→'; position: absolute; left: 0; color: var(--accent); }

/* ==================== 传播逻辑 ==================== */
.spread-logic {
  display: flex; align-items: stretch; gap: 12px;
  flex-wrap: wrap; justify-content: center;
}
.spread-step {
  flex: 1; min-width: 180px; background: var(--card-bg);
  border-radius: var(--radius); padding: 28px;
  box-shadow: var(--shadow); border: 1px solid var(--border);
  text-align: center; transition: var(--transition);
}
.spread-step:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.spread-num {
  display: inline-block; padding: 3px 12px; border-radius: 4px;
  background: var(--accent); color: #fff; font-size: 12px;
  font-weight: 700; margin-bottom: 12px;
}
.spread-step h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.spread-step p { font-size: 13px; color: var(--text-muted); }
.spread-arrow { display: flex; align-items: center; color: var(--accent); font-size: 18px; }

/* ==================== 战略发布会 ==================== */
.launch-event {
  max-width: 700px; margin: 0 auto;
}
.event-timeline { position: relative; padding-left: 32px; }
.event-timeline::before {
  content: ''; position: absolute; left: 8px; top: 0; bottom: 0;
  width: 3px; background: linear-gradient(180deg, var(--accent), var(--gold));
  border-radius: 3px;
}
.event-item {
  position: relative; padding: 20px 0 20px 24px;
}
.event-dot {
  position: absolute; left: -28px; top: 26px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent); border: 3px solid var(--bg);
}
.event-content h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.event-content p { font-size: 14px; color: var(--text-light); }

/* ==================== 映射关系 ==================== */
.mapping-visual { max-width: 800px; margin: 0 auto; }
.map-row {
  display: flex; align-items: center; gap: 20px;
  padding: 16px 24px; border-radius: var(--radius-sm);
  background: var(--card-bg); margin-bottom: 12px;
  box-shadow: var(--shadow); border: 1px solid var(--border);
}
.map-left, .map-right { flex: 1; font-size: 14px; color: var(--text-light); }
.map-left { text-align: right; font-weight: 600; color: var(--primary); }
.map-arrow { color: var(--accent); font-size: 20px; flex-shrink: 0; }

/* ==================== 积分体系 ==================== */
.points-system {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.points-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow);
  border: 1px solid var(--border); text-align: center;
  transition: var(--transition);
}
.points-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.points-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 22px; color: #fff; margin-bottom: 14px;
}
.points-card h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.points-card p { font-size: 13px; color: var(--text-muted); }

/* ==================== NFT ==================== */
.nft-showcase {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.nft-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow);
  border: 1px solid var(--border); text-align: center;
  transition: var(--transition);
  background: linear-gradient(135deg, #f8f0ff, #faf5ff);
  border-color: #e8d5ff;
}
.nft-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.nft-visual {
  width: 64px; height: 64px; border-radius: 16px;
  background: linear-gradient(135deg, #8b5cf6, #a78bfa);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 28px; color: #fff; margin-bottom: 16px;
}
.nft-card h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.nft-card p { font-size: 13px; color: var(--text-muted); }

/* ==================== 养成进化 ==================== */
.evolution-system {
  display: flex; align-items: center; justify-content: center;
  gap: 16px; flex-wrap: wrap;
}
.evo-level {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 28px 32px; box-shadow: var(--shadow);
  border: 1px solid var(--border); text-align: center;
  transition: var(--transition); min-width: 160px;
}
.evo-level:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.evo-badge {
  display: inline-block; padding: 4px 14px; border-radius: 20px;
  font-size: 13px; font-weight: 700; color: #fff; margin-bottom: 12px;
}
.lv1 { background: #94a3b8; }
.lv2 { background: var(--accent); }
.lv3 { background: var(--gold); }
.lv4 { background: linear-gradient(135deg, #e74c3c, #f39c12); }
.evo-level h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.evo-level p { font-size: 13px; color: var(--text-muted); }
.evo-arrow { color: var(--accent); font-size: 18px; }

/* ==================== 技术合规 ==================== */
.tech-compliance {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.tc-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow);
  border: 1px solid var(--border); transition: var(--transition);
}
.tc-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.tc-card h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.tc-card h4 i { color: var(--accent); margin-right: 8px; }
.tc-card p { font-size: 14px; color: var(--text-light); }

/* ==================== AI架构 ==================== */
.ai-arch { max-width: 800px; margin: 0 auto; }
.ai-layer {
  padding: 20px 28px; border-radius: var(--radius-sm);
  margin-bottom: 12px; display: flex; align-items: center; gap: 20px;
}
.ai-layer.top-layer { background: linear-gradient(135deg, #1a3a5c, #2a5a8c); }
.ai-layer.mid-layer { background: linear-gradient(135deg, #0096c7, #00b4d8); }
.ai-layer.bottom-layer { background: linear-gradient(135deg, #48cae4, #90e0ef); }
.layer-label {
  font-weight: 700; color: #fff; font-size: 15px;
  min-width: 80px; flex-shrink: 0;
}
.bottom-layer .layer-label { color: var(--primary-dark); }
.layer-items { display: flex; gap: 12px; flex-wrap: wrap; }
.layer-items span {
  padding: 5px 14px; border-radius: 20px;
  background: rgba(255,255,255,0.15); color: rgba(255,255,255,0.9);
  font-size: 13px; font-weight: 500;
}
.bottom-layer .layer-items span { color: var(--primary-dark); }

/* ==================== Agent卡片 ==================== */
.agent-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.agent-card {
  border-radius: var(--radius); padding: 28px;
  box-shadow: var(--shadow); border: 1px solid var(--border);
  text-align: center; transition: var(--transition);
}
.agent-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.internal-agent { background: linear-gradient(135deg, #e0f7fa, #f0fdff); border-color: #b2ebf2; }
.external-agent { background: linear-gradient(135deg, #fef9e7, #fffdf0); border-color: #f5deb3; }
.agent-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 22px; color: #fff; margin-bottom: 14px;
}
.internal-agent .agent-icon { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); }
.external-agent .agent-icon { background: linear-gradient(135deg, var(--gold), var(--gold-light)); }
.agent-card h4 { font-size: 15px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.agent-card p { font-size: 13px; color: var(--text-muted); }

/* ==================== Agent演进 ==================== */
.agent-evolution {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.evo-phase {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow);
  border: 1px solid var(--border); text-align: center;
  transition: var(--transition);
}
.evo-phase:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.phase-tag {
  display: inline-block; padding: 4px 14px; border-radius: 4px;
  background: var(--primary); color: #fff; font-size: 12px;
  font-weight: 700; margin-bottom: 14px;
}
.evo-phase h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.evo-phase p { font-size: 13px; color: var(--text-muted); }

/* ==================== 用户生命周期 ==================== */
.lifecycle {
  display: flex; align-items: stretch; gap: 12px;
  flex-wrap: wrap; justify-content: center;
}
.lc-stage {
  flex: 1; min-width: 140px; background: var(--card-bg);
  border-radius: var(--radius); padding: 24px;
  box-shadow: var(--shadow); border: 1px solid var(--border);
  text-align: center; transition: var(--transition);
}
.lc-stage:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.lc-icon {
  width: 48px; height: 48px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 20px; color: #fff; margin-bottom: 12px;
}
.lc-stage h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.lc-stage p { font-size: 12px; color: var(--text-muted); line-height: 1.8; }
.lc-arrow { display: flex; align-items: center; color: var(--accent); font-size: 16px; }

/* ==================== 场景矩阵 ==================== */
.scene-matrix {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px;
}
.scene-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow);
  border: 1px solid var(--border); transition: var(--transition);
}
.scene-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.scene-card h4 {
  font-size: 16px; font-weight: 700; color: var(--primary);
  margin-bottom: 12px;
}
.scene-card h4 i { color: var(--accent); margin-right: 8px; }
.scene-card p { font-size: 14px; color: var(--text-light); }

/* ==================== 数据驱动 ==================== */
.data-driven {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.dd-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 32px; box-shadow: var(--shadow);
  border: 1px solid var(--border); text-align: center;
  transition: var(--transition);
}
.dd-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.dd-icon {
  width: 56px; height: 56px; border-radius: 16px;
  background: var(--bg-alt); display: inline-flex;
  align-items: center; justify-content: center;
  font-size: 24px; color: var(--accent); margin-bottom: 16px;
}
.dd-card h4 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.dd-card p { font-size: 14px; color: var(--text-light); }

/* ==================== 技术架构层 ==================== */
.tech-arch { max-width: 900px; margin: 0 auto; }
.arch-layer {
  padding: 20px 28px; border-radius: var(--radius-sm);
  margin-bottom: 8px; display: flex; align-items: center; gap: 20px;
}
.layer-app { background: linear-gradient(135deg, #1a3a5c, #2a5a8c); }
.layer-service { background: linear-gradient(135deg, #0096c7, #00b4d8); }
.layer-data { background: linear-gradient(135deg, #48cae4, #90e0ef); }
.layer-infra { background: linear-gradient(135deg, #94a3b8, #64748b); }
.arch-label {
  font-weight: 700; color: #fff; font-size: 14px;
  min-width: 80px; flex-shrink: 0;
}
.layer-data .arch-label { color: var(--primary-dark); }
.arch-items { display: flex; gap: 10px; flex-wrap: wrap; }
.arch-items span {
  padding: 5px 14px; border-radius: 20px;
  background: rgba(255,255,255,0.15); color: rgba(255,255,255,0.9);
  font-size: 13px; font-weight: 500;
}
.layer-data .arch-items span { color: var(--primary-dark); }

/* ==================== 数据平台 & 安全 ==================== */
.data-platform, .security-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.dp-card, .sec-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow);
  border: 1px solid var(--border); text-align: center;
  transition: var(--transition);
}
.dp-card:hover, .sec-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.dp-icon, .sec-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--bg-alt); display: inline-flex;
  align-items: center; justify-content: center;
  font-size: 22px; color: var(--primary); margin-bottom: 14px;
}
.dp-card h4, .sec-card h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.dp-card p, .sec-card p { font-size: 13px; color: var(--text-muted); }

/* ==================== 组织架构图 ==================== */
.org-structure { text-align: center; }
.org-top, .org-mid, .org-bottom {
  display: flex; justify-content: center; gap: 16px;
  margin-bottom: 24px; flex-wrap: wrap;
}
.org-box {
  padding: 14px 24px; border-radius: var(--radius-sm);
  background: var(--card-bg); box-shadow: var(--shadow);
  border: 1px solid var(--border); font-weight: 600;
  font-size: 14px; color: var(--primary);
}
.org-box.ceo {
  background: linear-gradient(135deg, var(--primary), var(--accent-dark));
  color: #fff; font-size: 16px; border: none;
}
.org-box.sub {
  font-size: 13px; font-weight: 500; color: var(--text-light);
  padding: 10px 16px;
}

/* ==================== 人才 ==================== */
.talent-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.talent-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 32px; box-shadow: var(--shadow);
  border: 1px solid var(--border); text-align: center;
  transition: var(--transition);
}
.talent-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.talent-icon {
  width: 56px; height: 56px; border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--accent-dark));
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 24px; color: #fff; margin-bottom: 16px;
}
.talent-card h4 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.talent-card p { font-size: 14px; color: var(--text-light); }

/* ==================== 文化建设 ==================== */
.culture-items {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.culture-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow);
  border: 1px solid var(--border); transition: var(--transition);
}
.culture-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.culture-num {
  display: inline-block; width: 36px; height: 36px;
  border-radius: 50%; background: var(--accent);
  color: #fff; font-size: 14px; font-weight: 700;
  line-height: 36px; text-align: center; margin-bottom: 14px;
}
.culture-card h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.culture-card p { font-size: 13px; color: var(--text-muted); }

/* ==================== 路线图 ==================== */
.roadmap-timeline { max-width: 900px; margin: 0 auto; }
.rm-phase {
  margin-bottom: 32px; border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.rm-header {
  padding: 24px 32px; display: flex;
  align-items: center; gap: 16px; color: #fff;
}
.phase-1 .rm-header { background: linear-gradient(135deg, #1a3a5c, #2a5a8c); }
.phase-2 .rm-header { background: linear-gradient(135deg, #0096c7, #00b4d8); }
.phase-3 .rm-header { background: linear-gradient(135deg, #d4a843, #e8c868); }
.phase-4 .rm-header { background: linear-gradient(135deg, #e74c3c, #f39c12); }
.rm-icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: rgba(255,255,255,0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; flex-shrink: 0;
}
.rm-header h3 { font-size: 18px; font-weight: 700; flex: 1; }
.rm-time {
  padding: 4px 14px; border-radius: 20px;
  background: rgba(255,255,255,0.2); font-size: 13px;
  white-space: nowrap;
}
.rm-content { padding: 24px 32px; background: var(--card-bg); }
.rm-tasks { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.rm-task {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px; border-radius: var(--radius-xs);
  background: var(--bg-alt); font-size: 14px; color: var(--text-light);
}
.rm-task i { color: var(--success); font-size: 16px; flex-shrink: 0; }

/* ==================== 风险矩阵 ==================== */
.risk-matrix {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
}
.risk-card {
  border-radius: var(--radius); padding: 28px;
  box-shadow: var(--shadow); border: 1px solid var(--border);
  background: var(--card-bg); transition: var(--transition);
}
.risk-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.risk-level {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: 4px;
  font-size: 12px; font-weight: 700; margin-bottom: 12px;
}
.high-risk .risk-level { background: #fdecea; color: var(--danger); }
.mid-risk .risk-level { background: #fef9e7; color: var(--warning); }
.low-risk .risk-level { background: #e8f5e9; color: var(--success); }
.risk-card h4 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.risk-card p { font-size: 14px; color: var(--text-light); margin-bottom: 6px; }

/* ==================== KPI ==================== */
.kpi-dashboard { display: flex; flex-direction: column; gap: 32px; }
.kpi-category {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 32px; box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.kpi-category h3 {
  font-size: 18px; font-weight: 700; color: var(--primary);
  margin-bottom: 20px; display: flex; align-items: center; gap: 10px;
}
.kpi-category h3 i { color: var(--accent); }
.kpi-cards {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.kpi-item {
  padding: 20px; border-radius: var(--radius-sm);
  background: var(--bg-alt); border: 1px solid var(--border);
  text-align: center;
}
.kpi-name { font-size: 14px; font-weight: 600; color: var(--primary); margin-bottom: 8px; }
.kpi-target { font-size: 12px; color: var(--text-muted); }

/* ==================== 总结 ==================== */
.summary-content { max-width: 900px; margin: 0 auto; }
.summary-core {
  text-align: center; padding: 48px;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: var(--radius); color: #fff; margin-bottom: 40px;
}
.summary-icon { font-size: 48px; color: var(--gold-light); margin-bottom: 16px; }
.summary-core h3 { font-size: 24px; font-weight: 700; margin-bottom: 16px; color: var(--gold-light); }
.summary-core p { font-size: 16px; color: rgba(255,255,255,0.8); line-height: 1.8; }

.summary-pillars {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 20px; margin-bottom: 40px;
}
.s-pillar {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow);
  border: 1px solid var(--border); text-align: center;
  transition: var(--transition);
}
.s-pillar:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.s-pillar-icon {
  width: 56px; height: 56px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 24px; color: #fff; margin-bottom: 16px;
}
.s-pillar h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.s-pillar p { font-size: 13px; color: var(--text-muted); }

.summary-cta { text-align: center; }
.summary-cta h3 { font-size: 22px; font-weight: 700; color: var(--primary); margin-bottom: 16px; }
.summary-cta > p { font-size: 16px; color: var(--text-light); margin-bottom: 24px; }
.cta-quote {
  background: var(--bg-alt); border-radius: var(--radius);
  padding: 36px; border-left: 4px solid var(--gold);
}
.cta-quote blockquote {
  font-size: 17px; color: var(--text); line-height: 2;
  font-style: italic;
}

/* ==================== 页脚 ==================== */
.site-footer {
  background: var(--primary-dark); color: rgba(255,255,255,0.6);
  padding: 40px 24px; text-align: center;
}
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-brand { margin-bottom: 16px; }
.footer-logo {
  font-size: 20px; font-weight: 700; color: #fff;
}
.footer-logo i { color: var(--accent); margin-right: 6px; }
.footer-desc { display: block; font-size: 13px; color: rgba(255,255,255,0.4); margin-top: 4px; }
.footer-meta {
  display: flex; justify-content: center; gap: 12px;
  font-size: 13px; margin-bottom: 16px;
}
.footer-copy { font-size: 12px; color: rgba(255,255,255,0.3); }

/* ==================== 滚动动画 ==================== */
.animate-in {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.animate-in.visible {
  opacity: 1; transform: translateY(0);
}
.animate-in:nth-child(2) { transition-delay: 0.1s; }
.animate-in:nth-child(3) { transition-delay: 0.2s; }
.animate-in:nth-child(4) { transition-delay: 0.3s; }
.animate-in:nth-child(5) { transition-delay: 0.4s; }
.animate-in:nth-child(6) { transition-delay: 0.5s; }

.fade-up {
  opacity: 0; transform: translateY(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1; transform: translateY(0);
}

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: #fff; box-shadow: var(--shadow-lg);
    padding: 16px; gap: 4px; max-height: 70vh; overflow-y: auto;
  }
  .mobile-toggle { display: block; }
  .side-progress { display: none; }
  
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .preface-grid { grid-template-columns: 1fr; }
  .flywheel-detail { grid-template-columns: 1fr; }
  .threat-grid { grid-template-columns: 1fr; }
  .pain-grid { grid-template-columns: 1fr; }
  .chain-reasons { grid-template-columns: 1fr; }
  .contra-body { grid-template-columns: 1fr; }
  .brand-goals { grid-template-columns: 1fr; }
  .marketing-loop { grid-template-columns: 1fr; }
  .points-system { grid-template-columns: repeat(2, 1fr); }
  .nft-showcase { grid-template-columns: repeat(2, 1fr); }
  .agent-grid { grid-template-columns: repeat(2, 1fr); }
  .agent-evolution { grid-template-columns: 1fr; }
  .org-flywheel { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .data-driven { grid-template-columns: 1fr; }
  .data-platform, .security-grid { grid-template-columns: 1fr; }
  .talent-grid { grid-template-columns: 1fr; }
  .culture-items { grid-template-columns: repeat(2, 1fr); }
  .risk-matrix { grid-template-columns: 1fr; }
  .kpi-cards { grid-template-columns: repeat(2, 1fr); }
  .summary-pillars { grid-template-columns: repeat(2, 1fr); }
  .rm-tasks { grid-template-columns: 1fr; }
  
  .vision-statement { flex-direction: column; }
  .vision-arrow { padding: 16px 0; }
  .arrow-body { flex-direction: row; }
  .arrow-body i { transform: rotate(90deg); }
  
  .dual-core { flex-direction: column; }
  .core-connect { padding: 16px 0; }
  
  .logic-flow, .flywheel-chain, .spread-logic,
  .lifecycle, .evolution-system { flex-direction: column; align-items: center; }
  .logic-arrow, .chain-arrow, .spread-arrow, .lc-arrow, .evo-arrow {
    transform: rotate(90deg);
  }
}

@media (max-width: 640px) {
  .content-section { padding: 60px 16px; }
  .hero-section { padding: 80px 16px 40px; }
  .hero-pillars { flex-direction: column; align-items: center; }
  .pillar-connector { transform: rotate(90deg); }
  .hero-stats { grid-template-columns: 1fr; }
  .points-system { grid-template-columns: 1fr; }
  .nft-showcase { grid-template-columns: 1fr; }
  .agent-grid { grid-template-columns: 1fr; }
  .culture-items { grid-template-columns: 1fr; }
  .kpi-cards { grid-template-columns: 1fr; }
  .summary-pillars { grid-template-columns: 1fr; }
  .rm-header { flex-wrap: wrap; }
  .rm-time { margin-top: 8px; }
  .flywheel-visual { width: 260px; height: 260px; }
  .ring-middle { inset: 35px; }
  .ring-inner { inset: 70px; }
  .flywheel-center { inset: 95px; }
  .nav-meta { display: none; }
}

/* ==================== 打印优化 ==================== */
@media print {
  .top-nav, .side-progress, .hero-scroll { display: none; }
  .hero-section { min-height: auto; padding: 40px; }
  .content-section { padding: 40px 20px; break-inside: avoid; }
  body { font-size: 12px; }
}