/* ============================================================
   星盾企业AI中枢 · 宣传站视觉体系
   国际大厂暗色风：极光氛围 / 高级玻璃 / 品牌渐变 / 精密动效
   ============================================================ */
:root {
  --bg: #050508;
  --t1: rgba(255, 255, 255, 0.95);
  --t2: rgba(255, 255, 255, 0.66);
  --t3: rgba(255, 255, 255, 0.46);
  --t4: rgba(255, 255, 255, 0.3);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --blue: #4f8cff;
  --indigo: #6366f1;
  --violet: #8b5cf6;
  --cyan: #22d3ee;
  --emerald: #34d399;
  --amber: #fbbf24;
  --ease: cubic-bezier(0.23, 1, 0.32, 1);
  --font: "Inter", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--t1);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
::selection { background: rgba(99, 102, 241, 0.45); color: #fff; }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.12); border-radius: 99px; }
::-webkit-scrollbar-track { background: transparent; }

/* ---------- 氛围层 ---------- */
.aurora { position: fixed; inset: 0; z-index: -1; overflow: hidden; background: var(--bg); }
.aurora-blob { position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.5; will-change: transform; }
.aurora-blob.b1 {
  width: 55vw; height: 40vw; left: -12vw; top: -14vw;
  background: radial-gradient(circle, rgba(79, 140, 255, 0.34), transparent 65%);
  animation: drift1 24s ease-in-out infinite alternate;
}
.aurora-blob.b2 {
  width: 48vw; height: 36vw; right: -14vw; top: 6vh;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.3), transparent 65%);
  animation: drift2 30s ease-in-out infinite alternate;
}
.aurora-blob.b3 {
  width: 44vw; height: 32vw; left: 30vw; bottom: -20vw;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.18), transparent 65%);
  animation: drift1 34s ease-in-out infinite alternate-reverse;
}
@keyframes drift1 { from { transform: translate3d(0, 0, 0) scale(1); } to { transform: translate3d(6vw, 4vh, 0) scale(1.12); } }
@keyframes drift2 { from { transform: translate3d(0, 0, 0) scale(1.05); } to { transform: translate3d(-5vw, 6vh, 0) scale(0.95); } }
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.024) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.024) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: radial-gradient(ellipse 85% 60% at 50% 0%, black 20%, transparent 75%);
}

/* ---------- 通用 ---------- */
.grad {
  background: linear-gradient(112deg, #7db4ff, #a78bfa 52%, #67e8f9);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section { max-width: 1180px; margin: 0 auto; padding: 110px 28px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.eyebrow {
  display: inline-block; margin-bottom: 14px; padding: 5px 14px;
  border: 1px solid var(--line); border-radius: 99px;
  font-size: 12px; letter-spacing: 0.16em; color: var(--t3);
  background: rgba(255, 255, 255, 0.03);
}
.section-head h2 { font-size: clamp(28px, 4.4vw, 44px); font-weight: 800; letter-spacing: -0.01em; line-height: 1.25; }
.section-sub { margin-top: 14px; font-size: 15px; color: var(--t3); line-height: 1.8; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  border-radius: 14px; padding: 13px 24px;
  font-size: 14px; font-weight: 600; text-decoration: none;
  transition: transform 0.18s var(--ease), box-shadow 0.25s var(--ease), filter 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
  cursor: pointer; border: none;
}
.btn svg { width: 16px; height: 16px; transition: transform 0.2s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #4f6df5, #7c5cf6 55%, #9333ea);
  box-shadow: 0 6px 26px rgba(109, 88, 246, 0.42), inset 0 1px 0 rgba(255, 255, 255, 0.22);
}
.btn-primary:hover { filter: brightness(1.1); box-shadow: 0 8px 36px rgba(109, 88, 246, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.26); transform: translateY(-1px); }
.btn-primary:active { transform: scale(0.97); }
.btn-ghost {
  color: var(--t2); border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.03); backdrop-filter: blur(8px);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.07); color: var(--t1); transform: translateY(-1px); }
.btn-sm { padding: 9px 16px; font-size: 13px; border-radius: 11px; }
.btn-lg { padding: 16px 32px; font-size: 16px; border-radius: 16px; }

/* ---------- 导航 ---------- */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s; border-bottom: 1px solid transparent; }
.nav.scrolled { background: rgba(5, 5, 8, 0.72); backdrop-filter: blur(18px); border-bottom-color: var(--line); }
.nav-inner { max-width: 1180px; margin: 0 auto; padding: 14px 28px; display: flex; align-items: center; gap: 28px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--t1); }
.brand-mark {
  display: flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; color: #fff;
  filter: drop-shadow(0 4px 14px rgba(109, 88, 246, 0.5));
}
.brand-mark svg { width: 34px; height: 34px; }
.brand-name { font-size: 15px; font-weight: 800; letter-spacing: 0.02em; }
.brand-name em { font-style: normal; font-weight: 600; color: var(--t3); margin-left: 4px; }
.nav-links { display: flex; gap: 26px; margin-left: auto; }
.nav-links a { color: var(--t3); text-decoration: none; font-size: 13.5px; transition: color 0.2s; position: relative; }
.nav-links a::after { content: ''; position: absolute; left: 0; bottom: -5px; width: 0; height: 2px; border-radius: 2px; background: linear-gradient(90deg, var(--blue), var(--violet)); transition: width 0.25s var(--ease); }
.nav-links a:hover { color: var(--t1); }
.nav-links a:hover::after { width: 100%; }

/* ---------- Hero ---------- */
.hero {
  max-width: 1180px; margin: 0 auto;
  padding: 168px 28px 90px;
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center;
}
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 15px; border-radius: 99px;
  border: 1px solid rgba(99, 102, 241, 0.35);
  background: rgba(99, 102, 241, 0.1);
  font-size: 12.5px; color: #b7bdfc; letter-spacing: 0.04em;
}
.badge-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--emerald); box-shadow: 0 0 10px rgba(52, 211, 153, 0.9); animation: pulse 1.8s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }
.hero h1 { margin-top: 26px; font-size: clamp(42px, 6.2vw, 76px); font-weight: 900; letter-spacing: -0.02em; line-height: 1.14; }
.hero-sub { margin-top: 24px; font-size: 16.5px; line-height: 2; color: var(--t2); }
.hero-cta { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-cta.center { justify-content: center; }
.hero-proof { margin-top: 40px; display: flex; align-items: center; gap: 18px; font-size: 13px; color: var(--t3); }
.hero-proof b { font-size: 17px; font-weight: 800; margin-right: 3px; }
.hero-proof .sep { width: 1px; height: 16px; background: var(--line-strong); }

/* ---------- Hero 产品 Mock ---------- */
.hero-visual { position: relative; }
.hero-glow {
  position: absolute; inset: 8% -6% -4% -6%; z-index: -1;
  background: radial-gradient(ellipse 70% 60% at 50% 50%, rgba(99, 102, 241, 0.22), transparent 70%);
  filter: blur(30px);
}
.float-anim { animation: floaty 7s ease-in-out infinite; }
@keyframes floaty { 0%, 100% { transform: translateY(0) rotate(-0.4deg); } 50% { transform: translateY(-12px) rotate(0.4deg); } }
.mock-window {
  border-radius: 20px; overflow: hidden;
  border: 1px solid var(--line-strong);
  background: linear-gradient(170deg, rgba(22, 22, 32, 0.92), rgba(10, 10, 16, 0.95));
  box-shadow: 0 40px 90px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.09);
  backdrop-filter: blur(20px);
}
.mock-titlebar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; border-bottom: 1px solid var(--line); background: rgba(255, 255, 255, 0.025); }
.mock-titlebar .dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.r { background: #ff5f57; } .dot.y { background: #febc2e; } .dot.g { background: #28c840; }
.mock-title { margin-left: 8px; font-size: 12px; color: var(--t3); }
.mock-live { margin-left: auto; display: flex; align-items: center; gap: 5px; font-size: 10px; letter-spacing: 0.12em; color: var(--emerald); }
.mock-live i { width: 6px; height: 6px; border-radius: 50%; background: var(--emerald); animation: pulse 1.4s infinite; }
.mock-body { padding: 18px; display: flex; flex-direction: column; gap: 14px; }
.mock-chat-user {
  align-self: flex-end; max-width: 82%;
  padding: 10px 15px; border-radius: 14px 14px 4px 14px;
  background: linear-gradient(135deg, #4f6df5, #9333ea);
  color: #fff; font-size: 12.5px; line-height: 1.6;
  box-shadow: 0 6px 18px rgba(109, 88, 246, 0.35);
  animation: msg-in 0.6s var(--ease) 0.4s both;
}
@keyframes msg-in { from { opacity: 0; transform: translateY(12px) scale(0.96); } to { opacity: 1; transform: none; } }
.mock-ai {
  padding: 13px 15px; border-radius: 14px 14px 14px 4px;
  border: 1px solid rgba(139, 92, 246, 0.25);
  background: rgba(139, 92, 246, 0.07);
  animation: msg-in 0.6s var(--ease) 0.9s both;
}
.mock-ai-head { display: flex; align-items: center; gap: 9px; font-size: 12px; color: #c4b5fd; margin-bottom: 9px; }
.ai-orb {
  width: 16px; height: 16px; border-radius: 50%;
  background: conic-gradient(from 0deg, #8b5cf6, #3b82f6, #34d399, #8b5cf6);
  animation: spin 3s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.shimmer-text {
  background: linear-gradient(90deg, #a78bfa 20%, #ede9fe 50%, #a78bfa 80%);
  background-size: 200% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: shimmer 2s linear infinite;
}
@keyframes shimmer { from { background-position: -200% 0; } to { background-position: 200% 0; } }
.mock-steps { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.mock-steps li {
  display: flex; align-items: center; gap: 8px;
  font-size: 11.5px; color: var(--t2);
  opacity: 0; animation: step-in 0.5s var(--ease) both;
  animation-delay: calc(1.3s + var(--i) * 0.55s);
}
.mock-steps li::before { content: '✓'; color: var(--emerald); font-weight: 700; font-size: 11px; }
@keyframes step-in { from { opacity: 0; transform: translateX(-8px); } to { opacity: 1; transform: none; } }
.mock-chart { border: 1px solid var(--line); border-radius: 13px; padding: 12px 14px; background: rgba(255, 255, 255, 0.025); animation: msg-in 0.6s var(--ease) 1.6s both; }
.mock-chart-head { display: flex; justify-content: space-between; align-items: center; font-size: 11px; color: var(--t3); margin-bottom: 10px; }
.mock-chart-tag { padding: 2px 8px; border-radius: 99px; background: rgba(79, 140, 255, 0.14); color: #8db8ff; font-size: 10px; }
.bars { display: flex; align-items: flex-end; gap: 6px; height: 64px; }
.bars i {
  flex: 1; border-radius: 4px 4px 2px 2px;
  background: linear-gradient(180deg, #5ca8ff, #1a6db8);
  height: var(--h);
  transform-origin: bottom;
  animation: bar-grow 0.9s var(--ease) both;
  animation-delay: calc(1.9s + var(--h) * 0.004);
  box-shadow: 0 0 12px rgba(79, 140, 255, 0.25);
}
.bars i:nth-child(4n) { background: linear-gradient(180deg, #a78bfa, #6d28d9); box-shadow: 0 0 12px rgba(139, 92, 246, 0.25); }
@keyframes bar-grow { from { transform: scaleY(0); } to { transform: scaleY(1); } }

/* ---------- 跑马灯 ---------- */
.marquee { margin-top: 30px; padding: 18px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); overflow: hidden; mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent); }
.marquee-track { display: flex; gap: 44px; width: max-content; animation: marquee 30s linear infinite; }
.marquee-track span {
  font-size: 13px; letter-spacing: 0.14em; color: var(--t3); white-space: nowrap;
  display: flex; align-items: center; gap: 44px;
}
.marquee-track span::after { content: '◆'; font-size: 8px; color: rgba(139, 92, 246, 0.6); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 痛点卡 ---------- */
.cards-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.pain-card {
  position: relative; padding: 26px 22px; border-radius: 18px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.02));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: transform 0.25s var(--ease), border-color 0.25s, box-shadow 0.25s;
}
.pain-card:hover { transform: translateY(-4px); border-color: rgba(251, 113, 133, 0.3); box-shadow: 0 18px 40px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.07); }
.pain-num { font-size: 13px; font-weight: 800; letter-spacing: 0.1em; color: rgba(251, 113, 133, 0.75); margin-bottom: 14px; }
.pain-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.pain-card p { font-size: 13px; line-height: 1.9; color: var(--t3); }

/* ---------- 能力卡 ---------- */
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feat-card {
  position: relative; padding: 26px 24px; border-radius: 18px; overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.02));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: transform 0.25s var(--ease), border-color 0.25s, box-shadow 0.25s;
}
.feat-card::before {
  content: ''; position: absolute; inset: 0; opacity: 0;
  background: radial-gradient(300px 160px at 20% 0%, rgba(99, 102, 241, 0.14), transparent 70%);
  transition: opacity 0.3s;
}
.feat-card:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: 0 20px 44px rgba(0, 0, 0, 0.42); }
.feat-card:hover::before { opacity: 1; }
.feat-icon {
  display: flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: 12px; color: #fff; margin-bottom: 16px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28);
}
.feat-icon svg { width: 19px; height: 19px; }
.feat-icon.blue { background: linear-gradient(135deg, #4f8cff, #2b5ce6); box-shadow: 0 6px 18px rgba(79, 140, 255, 0.35), inset 0 1px 0 rgba(255,255,255,0.28); }
.feat-icon.violet { background: linear-gradient(135deg, #a78bfa, #7c3aed); box-shadow: 0 6px 18px rgba(139, 92, 246, 0.35), inset 0 1px 0 rgba(255,255,255,0.28); }
.feat-icon.cyan { background: linear-gradient(135deg, #22d3ee, #0891b2); box-shadow: 0 6px 18px rgba(34, 211, 238, 0.3), inset 0 1px 0 rgba(255,255,255,0.28); }
.feat-icon.emerald { background: linear-gradient(135deg, #34d399, #059669); box-shadow: 0 6px 18px rgba(52, 211, 153, 0.3), inset 0 1px 0 rgba(255,255,255,0.28); }
.feat-icon.amber { background: linear-gradient(135deg, #fbbf24, #d97706); box-shadow: 0 6px 18px rgba(251, 191, 36, 0.3), inset 0 1px 0 rgba(255,255,255,0.28); }
.feat-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 9px; position: relative; }
.feat-card p { font-size: 13px; line-height: 1.9; color: var(--t3); position: relative; }
.feat-tag {
  display: inline-block; margin-top: 14px; padding: 4px 11px; border-radius: 99px;
  border: 1px solid rgba(99, 102, 241, 0.3); background: rgba(99, 102, 241, 0.09);
  font-size: 11px; color: #a5b0ff; letter-spacing: 0.04em; position: relative;
}

/* ---------- 底层逻辑飞轮 ---------- */
.loop { position: relative; max-width: 860px; height: 460px; margin: 0 auto; }
.loop-ring {
  position: absolute; inset: 8% 16%;
  border-radius: 50%;
  border: 1px dashed rgba(139, 92, 246, 0.35);
  animation: spin 50s linear infinite;
}
.loop-ring::before {
  content: ''; position: absolute; top: -4px; left: 50%; width: 8px; height: 8px; border-radius: 50%;
  background: var(--violet); box-shadow: 0 0 14px var(--violet);
}
.loop-core {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  display: flex; flex-direction: column; align-items: center; gap: 7px;
  width: 190px; height: 190px; border-radius: 50%;
  justify-content: center; text-align: center;
  border: 1px solid rgba(139, 92, 246, 0.4);
  background: radial-gradient(circle, rgba(139, 92, 246, 0.16), rgba(10, 10, 16, 0.9) 72%);
  box-shadow: 0 0 60px rgba(139, 92, 246, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}
.loop-core b { font-size: 17px; letter-spacing: 0.04em; }
.loop-core small { font-size: 11px; color: var(--t3); }
.core-orb {
  width: 30px; height: 30px; border-radius: 50%;
  background: conic-gradient(from 0deg, #8b5cf6, #3b82f6, #34d399, #f59e0b, #8b5cf6);
  animation: spin 5s linear infinite;
  box-shadow: 0 0 24px rgba(139, 92, 246, 0.6);
}
.loop-node {
  position: absolute; width: 196px; padding: 15px 17px; border-radius: 15px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(24, 24, 34, 0.95), rgba(12, 12, 20, 0.95));
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.07);
  transition: transform 0.25s var(--ease), border-color 0.25s;
}
.loop-node:hover { transform: translateY(-3px); border-color: rgba(139, 92, 246, 0.5); }
.loop-step { font-size: 11px; font-weight: 800; letter-spacing: 0.12em; color: #a78bfa; }
.loop-node h4 { font-size: 14.5px; margin: 5px 0 4px; }
.loop-node p { font-size: 11.5px; color: var(--t3); line-height: 1.7; }
.loop-node.n1 { left: 50%; top: 0; transform: translateX(-50%); }
.loop-node.n1:hover { transform: translateX(-50%) translateY(-3px); }
.loop-node.n2 { right: 0; top: 30%; }
.loop-node.n3 { right: 8%; bottom: 0; }
.loop-node.n4 { left: 8%; bottom: 0; }
.loop-node.n5 { left: 0; top: 30%; }
.engine-notes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; max-width: 1080px; margin: 56px auto 0; }
.note {
  padding: 20px 22px; border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.028);
}
.note b { font-size: 14.5px; }
.note p { margin-top: 8px; font-size: 12.5px; line-height: 1.9; color: var(--t3); }

/* ---------- 数据带 ---------- */
.stats-band { padding-top: 90px; }
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  padding: 44px 32px; border-radius: 24px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(79, 140, 255, 0.06), rgba(139, 92, 246, 0.06) 55%, rgba(34, 211, 238, 0.04));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}
.stat { text-align: center; }
.stat b { display: block; font-size: clamp(34px, 4.6vw, 52px); font-weight: 900; letter-spacing: -0.01em; background: linear-gradient(112deg, #7db4ff, #a78bfa 55%, #67e8f9); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { display: block; margin-top: 8px; font-size: 13px; color: var(--t3); }

/* ---------- 双视角 ---------- */
.views { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.view-card {
  position: relative; overflow: hidden; padding: 30px 28px; border-radius: 22px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.02));
  transition: transform 0.25s var(--ease), border-color 0.25s;
}
.view-card:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.view-role {
  display: inline-block; padding: 4px 12px; border-radius: 99px; font-size: 11px; letter-spacing: 0.1em;
  border: 1px solid rgba(251, 191, 36, 0.35); color: #fcd34d; background: rgba(251, 191, 36, 0.08);
}
.staff .view-role { border-color: rgba(79, 140, 255, 0.35); color: #8db8ff; background: rgba(79, 140, 255, 0.08); }
.view-card h3 { margin-top: 14px; font-size: 21px; font-weight: 800; }
.view-card ul { margin-top: 18px; list-style: none; display: flex; flex-direction: column; gap: 11px; position: relative; }
.view-card li { display: flex; gap: 10px; font-size: 13.5px; color: var(--t2); line-height: 1.7; }
.view-card li::before { content: '→'; color: var(--violet); font-weight: 700; flex-shrink: 0; }
.view-glow { position: absolute; right: -60px; top: -60px; width: 220px; height: 220px; border-radius: 50%; filter: blur(60px); pointer-events: none; }
.boss-glow { background: rgba(251, 191, 36, 0.14); }
.staff-glow { background: rgba(79, 140, 255, 0.16); }

/* ---------- FAQ ---------- */
.faq { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq details {
  border: 1px solid var(--line); border-radius: 15px;
  background: rgba(255, 255, 255, 0.028);
  transition: border-color 0.25s, background 0.25s;
  overflow: hidden;
}
.faq details[open] { border-color: rgba(99, 102, 241, 0.4); background: rgba(99, 102, 241, 0.05); }
.faq summary {
  cursor: pointer; list-style: none; padding: 18px 22px;
  font-size: 15px; font-weight: 600; color: var(--t1);
  display: flex; align-items: center; justify-content: space-between;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; font-size: 20px; font-weight: 300; color: var(--t3); transition: transform 0.25s var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); color: #a78bfa; }
.faq details p { padding: 0 22px 20px; font-size: 13.5px; line-height: 2; color: var(--t3); }

/* ---------- CTA ---------- */
.cta { max-width: 980px; margin: 0 auto; padding: 120px 28px 100px; }
.cta-card {
  position: relative; overflow: hidden; text-align: center;
  padding: 80px 40px; border-radius: 30px;
  border: 1px solid rgba(99, 102, 241, 0.3);
  background: linear-gradient(160deg, rgba(79, 140, 255, 0.1), rgba(139, 92, 246, 0.1) 55%, rgba(34, 211, 238, 0.06));
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}
.cta-glow {
  position: absolute; left: 50%; top: -40%; transform: translateX(-50%);
  width: 560px; height: 400px; border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.3), transparent 65%);
  filter: blur(50px); pointer-events: none;
  animation: pulse 4s ease-in-out infinite;
}
.cta-card h2 { position: relative; font-size: clamp(32px, 5vw, 54px); font-weight: 900; letter-spacing: -0.01em; line-height: 1.3; }
.cta-card > p { position: relative; margin-top: 18px; font-size: 15px; color: var(--t2); }
.cta-card .hero-cta { position: relative; margin-top: 36px; }
.cta-hint { position: relative; margin-top: 22px !important; font-size: 12px !important; color: var(--t4) !important; }

/* ---------- 页脚 ---------- */
.footer {
  max-width: 1180px; margin: 0 auto; padding: 40px 28px 48px;
  border-top: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.footer p { font-size: 12px; color: var(--t4); letter-spacing: 0.06em; }

/* ---------- 滚动显现 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.08s; }
.reveal.d2 { transition-delay: 0.16s; }
.reveal.d3 { transition-delay: 0.24s; }
.reveal.d4 { transition-delay: 0.32s; }

/* ---------- 四层角色 ---------- */
.role-card {
  position: relative; overflow: hidden; padding: 26px 24px; border-radius: 20px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.018));
  transition: transform 0.25s var(--ease), border-color 0.25s, box-shadow 0.25s;
}
.role-card:hover { transform: translateY(-5px); border-color: var(--line-strong); box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35); }
.role-card.boss { border-top: 2px solid rgba(251, 191, 36, 0.55); }
.role-card.exec { border-top: 2px solid rgba(167, 139, 250, 0.55); }
.role-card.mgr { border-top: 2px solid rgba(56, 189, 248, 0.55); }
.role-card.staff { border-top: 2px solid rgba(148, 163, 184, 0.4); }
.role-badge {
  display: inline-block; padding: 5px 13px; border-radius: 99px;
  font-size: 12px; font-weight: 700; letter-spacing: 0.04em;
}
.role-badge.amber { border: 1px solid rgba(251, 191, 36, 0.4); color: #fcd34d; background: rgba(251, 191, 36, 0.1); }
.role-badge.violet { border: 1px solid rgba(167, 139, 250, 0.4); color: #c4b5fd; background: rgba(167, 139, 250, 0.1); }
.role-badge.sky { border: 1px solid rgba(56, 189, 248, 0.4); color: #7dd3fc; background: rgba(56, 189, 248, 0.1); }
.role-badge.zinc { border: 1px solid rgba(148, 163, 184, 0.35); color: #cbd5e1; background: rgba(148, 163, 184, 0.1); }
.role-card h3 { margin-top: 14px; font-size: 19px; font-weight: 800; letter-spacing: -0.01em; }
.role-card ul { margin-top: 16px; list-style: none; display: flex; flex-direction: column; gap: 10px; }
.role-card li { display: flex; gap: 9px; font-size: 13px; color: var(--t2); line-height: 1.75; }
.role-card li b { color: var(--t1); font-weight: 700; }
.role-card li::before { content: '→'; color: var(--violet); font-weight: 700; flex-shrink: 0; }

/* ---------- 数字员工 ---------- */
.digi-band {
  display: grid; grid-template-columns: 300px 1fr; gap: 44px; align-items: center;
  max-width: 1080px; margin: 0 auto; padding: 46px 44px; border-radius: 26px;
  border: 1px solid rgba(167, 139, 250, 0.28);
  background: linear-gradient(150deg, rgba(139, 92, 246, 0.09), rgba(79, 140, 255, 0.07) 55%, rgba(34, 211, 238, 0.05));
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}
.digi-avatars { display: flex; align-items: center; justify-content: center; }
.digi-ava {
  width: 74px; height: 74px; border-radius: 50%; margin-left: -18px;
  display: flex; align-items: center; justify-content: center; font-size: 34px;
  border: 3px solid #0b0e1a; background: linear-gradient(160deg, #1b2240, #12172e);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45);
  transition: transform 0.3s var(--ease);
}
.digi-ava:first-child { margin-left: 0; }
.digi-band:hover .digi-ava { transform: translateY(-6px); }
.digi-band:hover .digi-ava.a2 { transition-delay: 0.05s; }
.digi-band:hover .digi-ava.a3 { transition-delay: 0.1s; }
.digi-band:hover .digi-ava.a4 { transition-delay: 0.15s; }
.digi-ava.a1 { background: linear-gradient(160deg, rgba(79, 140, 255, 0.35), #12172e); }
.digi-ava.a2 { background: linear-gradient(160deg, rgba(167, 139, 250, 0.35), #12172e); }
.digi-ava.a3 { background: linear-gradient(160deg, rgba(52, 211, 153, 0.3), #12172e); }
.digi-ava.a4 { background: linear-gradient(160deg, rgba(34, 211, 238, 0.3), #12172e); }
.digi-more {
  width: 54px; height: 54px; border-radius: 50%; margin-left: -18px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; font-weight: 300; color: var(--t3);
  border: 2px dashed rgba(148, 163, 184, 0.4); background: rgba(148, 163, 184, 0.06);
}
.digi-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 28px; }
.digi-item b { font-size: 15px; font-weight: 800; display: block; }
.digi-item b::before { content: ''; display: inline-block; width: 7px; height: 7px; border-radius: 2px; margin-right: 9px; vertical-align: 2px; background: linear-gradient(135deg, var(--blue), var(--violet)); }
.digi-item p { margin-top: 8px; font-size: 12.5px; line-height: 1.85; color: var(--t3); }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; padding-top: 140px; gap: 48px; }
  .cards-4 { grid-template-columns: repeat(2, 1fr); }
  .cards-3 { grid-template-columns: repeat(2, 1fr); }
  .loop { height: auto; display: flex; flex-direction: column; gap: 14px; padding: 0 8px; }
  .loop-ring { display: none; }
  .loop-core { position: static; transform: none; margin: 12px auto; width: 170px; height: 170px; order: -1; }
  .loop-node { position: static; width: 100%; }
  .loop-node.n1:hover, .loop-node:hover { transform: translateY(-3px); }
  .engine-notes { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .views { grid-template-columns: 1fr; }
  .digi-band { grid-template-columns: 1fr; gap: 30px; padding: 34px 26px; }
  .nav-links { display: none; }
}
@media (max-width: 600px) {
  .cards-4, .cards-3 { grid-template-columns: 1fr; }
  .section { padding: 80px 20px 0; }
  .hero { padding: 120px 20px 60px; }
  .mobile-hide { display: none; }
  .hero-proof { flex-wrap: wrap; gap: 12px; }
  .footer { justify-content: center; text-align: center; }
}

/* ---------- 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}