/* ═══════════════════════════════════════════════════════════
   SO WIZARD — Dark Minimalist Manifesto
   Bienville Capital × Linear × Stripe 融合美学
   ═══════════════════════════════════════════════════════════ */

:root {
  /* ═══ 精炼色彩系统 — 对标 Linear / Vercel / DeepSeek 暗色质感 ═══ */
  --black: #08090C;          /* 深空近黑，带冷色微调，告别刺眼纯黑 */
  --charcoal: #0E1015;       /* 一级抬升面 */
  --charcoal-2: #14171F;     /* 二级抬升面 */
  --charcoal-3: #1A1E28;     /* 三级抬升面 / 悬停 */
  --line: rgba(255,255,255,0.07);
  --line-hover: rgba(255,255,255,0.14);
  --line-strong: rgba(255,255,255,0.20);
  --white: #F4F5F8;          /* 柔白，减少高对比刺眼感 */
  --white-80: rgba(244,245,248,0.82);
  --white-60: rgba(244,245,248,0.58);
  --white-40: rgba(244,245,248,0.38);
  --white-25: rgba(244,245,248,0.22);
  --gray: #6E7380;           /* 更温润的中灰 */
  --gray-dark: #2A2E38;
  --gray-darker: #1A1D26;
  --accent: #5E6AD2;         /* 保留 Linear 靛蓝 */
  --accent-bright: #7C8AFA;  /* 高亮态靛蓝，用于渐变与高光 */
  --accent-soft: #8B5CF6;    /* 紫调，用于高级渐变 */
  --accent-light: rgba(94,106,210,0.16);
  --accent-dim: rgba(94,106,210,0.09);
  --accent-glow: rgba(94,106,210,0.14);
  --green: #10B981;          /* 精炼翡翠绿，替代刺眼 #00C853 */
  --red: #F43F5E;            /* 精炼玫瑰红，替代刺眼 #FF5252 */
  --gold: #F59E0B;           /* 精炼琥珀金 */
  --font-display: 'Space Grotesk', 'Noto Sans SC', sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-power: cubic-bezier(0.16, 1, 0.3, 1);
  /* 高级阴影体系 */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4), 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4), 0 2px 6px rgba(0,0,0,0.3);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.5), 0 4px 12px rgba(0,0,0,0.35);
  --shadow-xl: 0 32px 64px rgba(0,0,0,0.55), 0 12px 28px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 24px rgba(94,106,210,0.18), 0 8px 32px rgba(94,106,210,0.10);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: auto; background: var(--black); overflow-x: hidden; }
body {
  font-family: var(--font-body); background: var(--black); color: var(--white);
  line-height: 1.6; overflow-x: hidden; -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv02','cv03','cv04','cv11','ss01';
  text-rendering: optimizeLegibility;
  letter-spacing: -0.011em;
  /* 微妙的纵向氛围渐变，让纯色背景更有层次 */
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(94,106,210,0.045), transparent 60%);
  background-attachment: fixed;
}
/* ★ 自定义光标仅在 fonts-loaded + js-ready 时启用 */
html.fonts-loaded.js-ready body { cursor: none; }
html.fonts-loaded.js-ready a { cursor: none; }
html.fonts-loaded.js-ready button { cursor: none; }
html.fonts-loaded.js-ready input, html.fonts-loaded.js-ready textarea { cursor: none; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { display: block; max-width: 100%; }
button { font-family: inherit; border: none; background: none; color: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }

/* ── 噪点纹理叠加层 ── */
body::before {
  content: ''; position: fixed; inset: 0; z-index: 9998; pointer-events: none;
  opacity: 0.03; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ── 自定义光标 ── */
.cursor-dot {
  position: fixed; width: 4px; height: 4px; background: var(--white);
  border-radius: 50%; pointer-events: none; z-index: 10000;
  transform: translate(-50%, -50%); transition: width 0.3s var(--ease), height 0.3s var(--ease),
    background 0.3s, border 0.3s, opacity 0.3s;
  mix-blend-mode: difference;
}
.cursor-dot.hover {
  width: 20px; height: 20px; background: transparent;
  border: 1px solid rgba(255,255,255,0.5); mix-blend-mode: normal;
}
.cursor-dot.click { width: 12px; height: 12px; }
@media (max-width: 768px) { .cursor-dot { display: none; } body, a, button { cursor: auto; } }

/* ── 加载屏 ── */
#loader {
  position: fixed; inset: 0; z-index: 9999; background: var(--black);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.8s var(--ease), visibility 0.8s;
  /* ★ 兜底：8秒后自动隐藏（CSS动画，不依赖JS） */
  animation: loaderAutoHide 0.1s 8s forwards;
}
@keyframes loaderAutoHide {
  to { opacity: 0; visibility: hidden; pointer-events: none; }
}
#loader.done { opacity: 0; visibility: hidden; }
#loader .loader-text {
  font-family: var(--font-display); font-size: 56px; font-weight: 300;
  color: var(--white); letter-spacing: 0.15em; overflow: hidden; display: flex;
}
#loader .loader-text span { opacity: 0; transform: translateY(100%); display: inline-block; }

/* ── 顶部公告横幅 ── */
.announcement {
  position: fixed; top: 0; left: 0; right: 0; z-index: 95;
  background: var(--accent); color: var(--white);
  padding: 10px 48px; display: flex; align-items: center; justify-content: space-between;
  font-size: 12px; letter-spacing: 0.05em; transition: transform 0.4s var(--ease);
}
.announcement.hidden { transform: translateY(-100%); }
.announcement .ann-left { display: flex; align-items: center; gap: 10px; }
.announcement .ann-icon { font-size: 14px; }
.announcement .ann-link { font-weight: 600; display: flex; align-items: center; gap: 6px; }
.announcement .ann-link .arrow { transition: transform 0.3s var(--ease); }
.announcement .ann-link:hover .arrow { transform: translateX(4px); }
.announcement .ann-close { opacity: 0.7; transition: opacity 0.3s; font-size: 16px; }
.announcement .ann-close:hover { opacity: 1; }
@media (max-width: 768px) { .announcement { padding: 10px 24px; font-size: 11px; } }

/* ── 左侧固定垂直导航 ── */
.side-nav {
  position: fixed; left: 40px; top: 50%; transform: translateY(-50%) rotate(-90deg);
  transform-origin: left center; z-index: 90; display: flex; gap: 32px;
  font-size: 10px; font-weight: 500; letter-spacing: 0.2em; text-transform: uppercase;
}
.side-nav a {
  color: var(--gray); transition: color 0.3s, opacity 0.3s; opacity: 0.5;
  white-space: nowrap; position: relative; padding-bottom: 2px;
}
.side-nav a:hover, .side-nav a.active { color: var(--white); opacity: 1; }
.side-nav a.active::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 1px;
  background: var(--white);
}
@media (max-width: 1024px) { .side-nav { display: none; } }

/* ── 顶部极简导航 ── */
.top-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 85;
  padding: 24px 48px; display: flex; align-items: center; justify-content: space-between;
  transition: all 0.5s var(--ease);
}
.announcement ~ .top-nav { top: 40px; }
.top-nav.scrolled {
  background: rgba(10,10,10,0.85); backdrop-filter: blur(20px);
  padding: 16px 48px; border-bottom: 1px solid var(--line);
}
.top-nav .logo {
  font-family: var(--font-display); font-size: 14px; font-weight: 600;
  letter-spacing: 0.15em; color: var(--white);
}
.top-nav .nav-links { display: flex; gap: 36px; }
.top-nav .nav-links a {
  font-size: 11px; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--gray); transition: opacity 0.3s;
}
.top-nav .nav-links a:hover { opacity: 0.5; }
.top-nav .nav-cta {
  font-size: 11px; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--white); transition: opacity 0.3s;
}
.top-nav .nav-cta:hover { opacity: 0.5; }
.top-nav .nav-cta .arrow { display: inline-block; transition: transform 0.3s var(--ease); }
.top-nav .nav-cta:hover .arrow { transform: translateX(6px); }
@media (max-width: 768px) {
  .top-nav { padding: 16px 24px; }
  .top-nav .nav-links { display: none; }
}

/* ── 章节标签（左下角） ── */
.section-tag {
  position: absolute; bottom: 32px; left: 48px;
  font-size: 10px; font-weight: 500; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--gray); z-index: 5;
}
@media (max-width: 768px) { .section-tag { left: 24px; bottom: 24px; } }

/* ═══════════════════════════════════════════════════
   1. HERO · 首屏宣言
   ═══════════════════════════════════════════════════ */
.hero {
  min-height: 100vh; background: var(--black); position: relative;
  display: flex; align-items: center; overflow: hidden;
}
/* 暗色科技氛围背景层 */
.hero::before {
  content: ''; position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background: url('../images/hero-atmosphere.jpg') center/cover no-repeat;
  opacity: 0.2;
}
/* 大气背景层 */
.hero::after {
  content: ''; position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background:
    url('../images/tech-texture.jpg') center/cover no-repeat,
    radial-gradient(ellipse 50% 40% at 75% 45%, rgba(94,106,210,0.05), transparent 70%),
    radial-gradient(ellipse 40% 30% at 20% 70%, rgba(94,106,210,0.03), transparent 70%);
  opacity: 0.4;
  mix-blend-mode: screen;
}
/* 网格层 */
.hero-grid {
  position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(rgba(94,106,210,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(94,106,210,0.015) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 60% 70% at 50% 50%, black 0%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 60% 70% at 50% 50%, black 0%, transparent 80%);
}
/* 环境光球 */
.ambient-orb {
  position: absolute; border-radius: 50%; pointer-events: none; z-index: 0;
  filter: blur(80px); opacity: 0.4;
}
.ambient-orb.orb-1 {
  width: 400px; height: 400px; background: var(--accent-dim);
  top: 20%; right: 5%; animation: orb-drift-1 20s infinite ease-in-out;
}
.ambient-orb.orb-2 {
  width: 300px; height: 300px; background: rgba(94,106,210,0.06);
  bottom: 10%; left: 10%; animation: orb-drift-2 25s infinite ease-in-out;
}
@keyframes orb-drift-1 {
  0%,100% { transform: translate(0,0) scale(1); }
  33% { transform: translate(-40px,30px) scale(1.1); }
  66% { transform: translate(30px,-20px) scale(0.95); }
}
@keyframes orb-drift-2 {
  0%,100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(50px,-40px) scale(1.15); }
}

/* Hero 地球仪装饰 */
.hero-globe-deco {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 520px;
  height: 520px;
  opacity: 0.3;
  pointer-events: none;
  z-index: 1;
}
.hero-globe-deco-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, rgba(180,190,255,0.15), rgba(94,106,210,0.05) 40%, transparent 70%),
    radial-gradient(circle at 65% 65%, rgba(94,106,210,0.08), transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(20,20,40,0.3), rgba(10,10,20,0.5));
  border: 1px solid rgba(94,106,210,0.15);
  animation: hero-globe-spin 60s linear infinite;
  box-shadow:
    inset -20px -20px 40px rgba(0,0,0,0.4),
    0 0 60px rgba(94,106,210,0.1);
}
.hero-globe-deco-ring {
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  border: 1px solid rgba(94,106,210,0.06);
  animation: hero-globe-pulse 4s ease-in-out infinite;
}
.hero-globe-deco-ring-2 {
  position: absolute;
  inset: -40px;
  border-radius: 50%;
  border: 1px solid rgba(94,106,210,0.03);
}
@keyframes hero-globe-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes hero-globe-pulse {
  0%,100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.05); opacity: 1; }
}
@media (max-width: 1200px) {
  .hero-globe-deco { width: 380px; height: 380px; }
}
@media (max-width: 768px) {
  .hero-globe-deco { display: none; }
}

.hero-inner {
  max-width: 1400px; margin: 0 auto; padding: 0 48px; width: 100%;
  position: relative; z-index: 2;
  display: flex; flex-direction: column;
}
.hero-content {
  max-width: 760px;
}
.hero-side {
  display: none;
}
.hero-label {
  font-size: 10px; font-weight: 500; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--gray); margin-bottom: 48px;
}
.hero-label .dot {
  display: inline-block; width: 5px; height: 5px; border-radius: 50%;
  background: var(--accent); margin-right: 10px; vertical-align: middle;
  animation: pulse-accent 2s infinite ease-in-out;
}
@keyframes pulse-accent {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.6); }
}
.hero h1 {
  font-family: var(--font-display); font-size: clamp(24px, 3.8vw, 56px);
  font-weight: 300; line-height: 1.15; letter-spacing: -0.02em; color: var(--white);
  padding-bottom: 0.1em; white-space: nowrap;
}
.hero h1 .line-wrap { display: block; overflow: hidden; padding-bottom: 0.05em; }
.hero h1 .line {
  display: block; transform: translateY(110%); will-change: transform;
  /* ★ CSS兜底：1.5秒后自动显示（GSAP未加载时） */
  animation: hero-line-fallback 0.3s 1.5s forwards;
}
@keyframes hero-line-fallback {
  to { transform: translateY(0%); }
}
/* ★ 无JS/JS失败兜底：文字直接可见 */
.js-failed .hero h1 .line,
.js-failed .vision-inner h2 .line,
.js-failed .footer-big .line-wrap span {
  transform: translateY(0%) !important;
  opacity: 1 !important;
}
.js-failed .hero-label,
.js-failed .hero-mockup,
.js-failed .heartbeat-panel,
.js-failed .hero-scroll-hint,
.js-failed .reveal-up {
  opacity: 1 !important;
  transform: none !important;
}
.js-failed body { cursor: auto !important; }
.js-failed .cursor-dot { display: none !important; }
.hero h1 .accent { color: var(--accent); font-weight: 400; }
/* Hero 副标题 */
.hero-sub {
  font-size: 16px; color: var(--white-60); margin-top: 32px; max-width: 600px;
  line-height: 1.7;
}
.hero-sub .accent { color: var(--accent); font-weight: 500; }
/* Hero CTA按钮 */
.hero-actions {
  margin-top: 40px; display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
}
.hero-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; background: var(--accent); color: var(--white);
  font-size: 14px; font-weight: 500; letter-spacing: 0.05em;
  border-radius: 6px; transition: all 0.3s var(--ease);
}
.hero-cta:hover { background: var(--accent); filter: brightness(1.2); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(94,106,210,0.3); }
.hero-cta .arrow { transition: transform 0.3s var(--ease); }
.hero-cta:hover .arrow { transform: translateX(4px); }
.hero-cta-secondary {
  font-size: 14px; color: var(--white-60); font-weight: 400;
  transition: color 0.3s; padding: 14px 0;
}
.hero-cta-secondary:hover { color: var(--white); }
@media (max-width: 768px) {
  .hero-sub { font-size: 14px; margin-top: 20px; }
  .hero-actions { margin-top: 28px; gap: 16px; }
  .hero-cta { padding: 12px 24px; font-size: 13px; }
}
.hero-scroll-hint {
  position: absolute; bottom: 48px; left: 50%; transform: translateX(-50%);
  text-align: center; z-index: 3;
}
.hero-scroll-hint .arrow {
  width: 1px; height: 40px; background: var(--white); margin: 0 auto 12px;
  animation: scroll-line 2s infinite var(--ease);
}
@keyframes scroll-line {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}
.hero-scroll-hint .text {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray);
}

/* ── 实时脉冲面板 ── */
.heartbeat-panel {
  position: absolute; bottom: 48px; right: 48px; z-index: 5;
  border: 1px solid var(--line); border-radius: 6px; padding: 20px 28px;
  background: rgba(17,17,17,0.6); backdrop-filter: blur(12px);
  min-width: 220px; transition: box-shadow 0.3s var(--ease), border-color 0.3s;
}
.heartbeat-panel.flash {
  box-shadow: 0 0 24px var(--accent-light);
  border-color: rgba(94,106,210,0.2);
}
.heartbeat-panel .hb-label {
  font-size: 9px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray);
  margin-bottom: 8px;
}
.heartbeat-panel .hb-main {
  font-family: var(--font-display); font-size: 38px; font-weight: 300;
  color: var(--white); line-height: 1; margin-bottom: 8px;
  transition: text-shadow 0.3s;
}
.heartbeat-panel.flash .hb-main { text-shadow: 0 0 20px var(--accent-light); }
.heartbeat-panel .hb-sub {
  font-size: 11px; color: var(--gray); line-height: 1.8;
}
.heartbeat-panel .hb-sub .num { color: var(--white-80); }
@media (max-width: 768px) {
  .heartbeat-panel { right: 24px; bottom: 24px; padding: 14px 18px; min-width: 160px; }
  .heartbeat-panel .hb-main { font-size: 28px; }
}

/* ── 产品Mockup ── */
.hero-mockup {
  position: absolute; right: 6%; top: 50%; transform: translateY(-50%) perspective(1200px) rotateY(-8deg) rotateX(2deg);
  width: 420px; z-index: 1; opacity: 0.55; transition: opacity 0.8s var(--ease);
  animation: mockup-float 6s infinite ease-in-out;
}
@keyframes mockup-float {
  0%,100% { transform: translateY(-50%) perspective(1200px) rotateY(-8deg) rotateX(2deg); }
  50% { transform: translateY(calc(-50% - 8px)) perspective(1200px) rotateY(-7deg) rotateX(1deg); }
}
.hero-mockup:hover { opacity: 0.75; }
.hero-mockup .mockup-frame {
  background: var(--charcoal-2); border: 1px solid var(--line); border-radius: 12px;
  overflow: hidden; box-shadow: 0 60px 120px rgba(0,0,0,0.6), 0 0 60px rgba(94,106,210,0.05);
}
.hero-mockup .mockup-bar {
  height: 32px; background: var(--charcoal); display: flex; align-items: center;
  padding: 0 16px; gap: 6px; border-bottom: 1px solid var(--line);
}
.hero-mockup .mockup-bar .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--gray-dark); }
.hero-mockup .mockup-body { padding: 20px; }
.hero-mockup .mockup-row {
  display: flex; align-items: center; gap: 12px; padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.hero-mockup .mockup-row:last-child { border-bottom: none; }
.hero-mockup .mockup-tag {
  width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0;
}
.hero-mockup .mockup-text {
  height: 8px; border-radius: 2px; background: rgba(255,255,255,0.08); flex: 1;
}
.hero-mockup .mockup-text.short { width: 60%; }
.hero-mockup .mockup-num {
  font-family: var(--font-display); font-size: 14px; font-weight: 400; color: var(--white-60);
}
@media (max-width: 1024px) { .hero-mockup { display: none; } }

/* ═══════════════════════════════════════════════════
   1.5 NETWORK GLOBE · 粒子地球网络节点
   ═══════════════════════════════════════════════════ */
.globe-section {
  position: relative; width: 100%; height: 100vh; min-height: 600px; max-height: 900px;
  background: var(--black); overflow: hidden;
}
.globe-container {
  position: relative; width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
}
#globeCanvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  display: block;
}
.globe-label {
  position: absolute; top: 12%; left: 50%; transform: translateX(-50%);
  font-family: var(--font-display); font-size: 13px; letter-spacing: 0.25em;
  color: var(--white-40); text-transform: uppercase; z-index: 2;
  pointer-events: none;
}
.globe-sub {
  position: absolute; top: calc(12% + 28px); left: 50%; transform: translateX(-50%);
  font-size: 13px; color: var(--white-40); z-index: 2; pointer-events: none;
}
.globe-tooltip {
  position: absolute; z-index: 10; pointer-events: none;
  opacity: 0; transform: translate(-50%, -120%);
  transition: opacity 0.25s var(--ease);
  background: rgba(17,17,17,0.92); border: 1px solid rgba(94,106,210,0.3);
  border-radius: 8px; padding: 14px 20px; min-width: 180px;
  backdrop-filter: blur(16px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.5), 0 0 20px rgba(94,106,210,0.08);
}
.globe-tooltip.visible { opacity: 1; }
.globe-tooltip-title {
  font-family: var(--font-display); font-size: 15px; font-weight: 600;
  color: var(--white); margin-bottom: 4px; letter-spacing: 0.02em;
}
.globe-tooltip-desc {
  font-size: 12px; color: var(--white-60); line-height: 1.5;
}
.globe-hint {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 8px;
  font-size: 11px; color: var(--white-40); z-index: 2;
  opacity: 0.7; transition: opacity 0.5s;
  pointer-events: none;
}
.globe-hint-icon { font-size: 14px; }
.globe-section.interacting .globe-hint { opacity: 0; }

/* ── WebGL 降级：CSS 动画地球 ── */
.globe-fallback {
  display: none;
  position: absolute; inset: 0;
  z-index: 1;
  overflow: hidden;
}
.globe-fallback.active {
  display: block;
}
.globe-fallback-dots {
  position: absolute;
  width: 380px; height: 380px;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background:
    /* 地球暗面 */
    radial-gradient(ellipse at 30% 30%, rgba(94,106,210,0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 60%, rgba(94,106,210,0.05) 0%, transparent 40%),
    /* 点状粒子 */
    radial-gradient(2px 2px at 15% 20%, rgba(180,200,255,0.9) 100%, transparent 100%),
    radial-gradient(2px 2px at 25% 12%, rgba(140,160,240,0.8) 100%, transparent 100%),
    radial-gradient(2px 2px at 35% 18%, rgba(180,200,255,0.7) 100%, transparent 100%),
    radial-gradient(2px 2px at 45% 10%, rgba(130,150,255,0.9) 100%, transparent 100%),
    radial-gradient(2px 2px at 55% 15%, rgba(160,190,255,0.8) 100%, transparent 100%),
    radial-gradient(2px 2px at 65% 22%, rgba(140,160,240,0.7) 100%, transparent 100%),
    radial-gradient(2px 2px at 75% 18%, rgba(180,200,255,0.9) 100%, transparent 100%),
    radial-gradient(2px 2px at 85% 25%, rgba(130,150,255,0.8) 100%, transparent 100%),
    radial-gradient(2px 2px at 10% 40%, rgba(160,190,255,0.7) 100%, transparent 100%),
    radial-gradient(2px 2px at 20% 35%, rgba(140,160,240,0.9) 100%, transparent 100%),
    radial-gradient(2px 2px at 30% 45%, rgba(180,200,255,0.8) 100%, transparent 100%),
    radial-gradient(2px 2px at 40% 38%, rgba(130,150,255,0.7) 100%, transparent 100%),
    radial-gradient(2px 2px at 50% 50%, rgba(160,190,255,0.9) 100%, transparent 100%),
    radial-gradient(2px 2px at 60% 42%, rgba(140,160,240,0.8) 100%, transparent 100%),
    radial-gradient(2px 2px at 70% 48%, rgba(180,200,255,0.7) 100%, transparent 100%),
    radial-gradient(2px 2px at 80% 40%, rgba(130,150,255,0.9) 100%, transparent 100%),
    radial-gradient(2px 2px at 90% 35%, rgba(160,190,255,0.8) 100%, transparent 100%),
    radial-gradient(2px 2px at 12% 55%, rgba(140,160,240,0.7) 100%, transparent 100%),
    radial-gradient(2px 2px at 22% 60%, rgba(180,200,255,0.9) 100%, transparent 100%),
    radial-gradient(2px 2px at 32% 52%, rgba(130,150,255,0.8) 100%, transparent 100%),
    radial-gradient(2px 2px at 42% 65%, rgba(160,190,255,0.7) 100%, transparent 100%),
    radial-gradient(2px 2px at 52% 58%, rgba(140,160,240,0.9) 100%, transparent 100%),
    radial-gradient(2px 2px at 62% 55%, rgba(180,200,255,0.8) 100%, transparent 100%),
    radial-gradient(2px 2px at 72% 62%, rgba(130,150,255,0.7) 100%, transparent 100%),
    radial-gradient(2px 2px at 82% 52%, rgba(160,190,255,0.9) 100%, transparent 100%),
    radial-gradient(2px 2px at 92% 58%, rgba(140,160,240,0.8) 100%, transparent 100%),
    radial-gradient(2px 2px at 15% 72%, rgba(180,200,255,0.7) 100%, transparent 100%),
    radial-gradient(2px 2px at 25% 78%, rgba(130,150,255,0.9) 100%, transparent 100%),
    radial-gradient(2px 2px at 35% 70%, rgba(160,190,255,0.8) 100%, transparent 100%),
    radial-gradient(2px 2px at 45% 75%, rgba(140,160,240,0.7) 100%, transparent 100%),
    radial-gradient(2px 2px at 55% 72%, rgba(180,200,255,0.9) 100%, transparent 100%),
    radial-gradient(2px 2px at 65% 78%, rgba(130,150,255,0.8) 100%, transparent 100%),
    radial-gradient(2px 2px at 75% 70%, rgba(160,190,255,0.7) 100%, transparent 100%),
    radial-gradient(2px 2px at 85% 75%, rgba(140,160,240,0.9) 100%, transparent 100%),
    radial-gradient(2px 2px at 18% 85%, rgba(180,200,255,0.8) 100%, transparent 100%),
    radial-gradient(2px 2px at 28% 88%, rgba(130,150,255,0.7) 100%, transparent 100%),
    radial-gradient(2px 2px at 38% 82%, rgba(160,190,255,0.9) 100%, transparent 100%),
    radial-gradient(2px 2px at 48% 86%, rgba(140,160,240,0.8) 100%, transparent 100%),
    radial-gradient(2px 2px at 58% 80%, rgba(180,200,255,0.7) 100%, transparent 100%),
    radial-gradient(2px 2px at 68% 85%, rgba(130,150,255,0.9) 100%, transparent 100%),
    radial-gradient(2px 2px at 78% 82%, rgba(160,190,255,0.8) 100%, transparent 100%),
    radial-gradient(2px 2px at 88% 88%, rgba(140,160,240,0.7) 100%, transparent 100%),
    radial-gradient(2px 2px at 5% 25%, rgba(180,200,255,0.6) 100%, transparent 100%),
    radial-gradient(2px 2px at 95% 30%, rgba(130,150,255,0.6) 100%, transparent 100%),
    radial-gradient(2px 2px at 8% 65%, rgba(160,190,255,0.6) 100%, transparent 100%),
    radial-gradient(2px 2px at 95% 65%, rgba(140,160,240,0.6) 100%, transparent 100%),
    radial-gradient(2px 2px at 50% 90%, rgba(180,200,255,0.6) 100%, transparent 100%),
    radial-gradient(2px 2px at 50% 8%, rgba(130,150,255,0.6) 100%, transparent 100%);
  animation: globeFallbackSpin 30s linear infinite;
  box-shadow: 
    0 0 60px rgba(94,106,210,0.15),
    0 0 120px rgba(94,106,210,0.06),
    inset 0 0 80px rgba(94,106,210,0.05);
}
@keyframes globeFallbackSpin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}
.globe-fallback-ring {
  position: absolute;
  width: 400px; height: 400px;
  border-radius: 50%;
  border: 1px solid rgba(94,106,210,0.2);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) rotateX(65deg);
  animation: globeFallbackRingSpin 20s linear infinite;
  box-shadow: 0 0 20px rgba(94,106,210,0.08);
}
.globe-fallback-ring-2 {
  width: 420px; height: 420px;
  border-color: rgba(94,106,210,0.1);
  transform: translate(-50%, -50%) rotateX(25deg) rotateY(30deg);
  animation-name: globeFallbackRingSpin2;
  animation-duration: 25s;
  animation-direction: reverse;
}
@keyframes globeFallbackRingSpin {
  from { transform: translate(-50%, -50%) rotateX(65deg) rotateZ(0deg); }
  to { transform: translate(-50%, -50%) rotateX(65deg) rotateZ(360deg); }
}
@keyframes globeFallbackRingSpin2 {
  from { transform: translate(-50%, -50%) rotateX(25deg) rotateY(30deg) rotateZ(0deg); }
  to { transform: translate(-50%, -50%) rotateX(25deg) rotateY(30deg) rotateZ(-360deg); }
}
.globe-fallback-node {
  position: absolute;
  z-index: 2;
  pointer-events: none;
}
.globe-fallback-node span {
  display: block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 10px rgba(130,180,255,0.8), 0 0 20px rgba(94,106,210,0.5), 0 0 35px rgba(94,106,210,0.25);
  animation: globeFallbackNodePulse 2.5s ease-in-out infinite;
}
.globe-fallback-node:nth-child(odd) span { animation-delay: 0.7s; width: 6px; height: 6px; background: #7eb8ff; }
.globe-fallback-node:nth-child(3n) span { animation-delay: 1.3s; background: #c0d0ff; }
.globe-fallback-node:nth-child(4n) span { animation-delay: 1.9s; width: 5px; height: 5px; }
.globe-fallback-node:nth-child(5n) span { animation-delay: 0.3s; background: #5e6ad2; }
@keyframes globeFallbackNodePulse {
  0%, 100% { opacity: 0.35; transform: scale(0.7); }
  50% { opacity: 1; transform: scale(1.5); }
}
@media (max-width: 768px) {
  .globe-section { height: 70vh; min-height: 450px; }
  .globe-tooltip { padding: 10px 14px; min-width: 140px; }
  .globe-tooltip-title { font-size: 13px; }
  .globe-tooltip-desc { font-size: 11px; }
}

/* ═══════════════════════════════════════════════════
   1.6 WHAT WE DO · 我们做什么
   ═══════════════════════════════════════════════════ */
.what-section {
  background: var(--charcoal); padding: 80px 0; position: relative;
}
.what-section::before {
  content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: url('../images/what-bg.jpg') center/cover no-repeat;
  opacity: 0.06;
}
.what-inner { max-width: 1400px; margin: 0 auto; padding: 0 48px; }
.what-header { margin-bottom: 80px; }
.what-header .tag {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray);
  margin-bottom: 24px;
}
.what-header h2 {
  font-family: var(--font-display); font-size: clamp(32px, 5vw, 64px);
  font-weight: 300; color: var(--white); margin-bottom: 24px; letter-spacing: -0.01em;
}
.what-header h2 .accent { color: var(--accent); }
.what-desc {
  font-size: 16px; color: var(--white-60); line-height: 1.8; max-width: 700px;
}
.what-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 0;
}
.what-card {
  padding: 48px; border: 1px solid var(--line); margin: -1px 0 0 -1px;
  transition: all 0.4s var(--ease); position: relative;
}
.what-card:hover {
  background: rgba(255,255,255,0.02); border-color: var(--line-hover);
  transform: translateY(-2px); z-index: 2;
}
.what-card .what-icon { margin-bottom: 24px; opacity: 0.8; }
.what-card h3 {
  font-size: 20px; font-weight: 500; letter-spacing: 0.06em;
  color: var(--white); margin-bottom: 12px; display: flex; align-items: center; gap: 12px;
}
.what-card h3 .zh {
  font-size: 13px; font-weight: 400; color: var(--accent);
  letter-spacing: 0.04em; text-transform: none;
}
.what-card p {
  font-size: 14px; color: var(--gray); line-height: 1.7;
}
@media (max-width: 768px) {
  .what-section { padding: 80px 0; }
  .what-inner { padding: 0 24px; }
  .what-grid { grid-template-columns: 1fr; }
  .what-card { padding: 32px 24px; }
}

/* ═══════════════════════════════════════════════════
   2. WE DARE TO · 排比宣言 (ScrollTrigger Pin)
   ═══════════════════════════════════════════════════ */
.dare-section {
  background: var(--charcoal); position: relative;
}
.dare-section::before {
  content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: url('../images/dare-bg.jpg') center/cover no-repeat;
  opacity: 0.05;
}
.dare-header {
  padding: 80px 48px 0; max-width: 1400px; margin: 0 auto;
}
.dare-header .tag {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray);
  margin-bottom: 24px;
}
.dare-header h2 {
  font-family: var(--font-display); font-size: clamp(36px, 6vw, 80px);
  font-weight: 300; color: var(--white); letter-spacing: -0.01em;
}
.dare-header .dare-intro {
  font-size: 16px; color: var(--white-60); margin-top: 16px; line-height: 1.7;
}
.dare-header .dare-intro .accent { color: var(--accent); font-weight: 500; }
/* 中文副标题 */
.dare-item .dare-phrase .zh-phrase {
  display: block; font-size: 0.45em; font-weight: 400; color: var(--accent);
  letter-spacing: 0.04em; margin-top: 4px; font-family: var(--font-body);
}
/* 数据行 */
.dare-item .dare-data {
  font-size: 16px; color: var(--white-60); margin-top: 12px; margin-bottom: 4px;
}
.dare-item .dare-data .data-num {
  font-size: 1.2em; font-weight: 400; color: var(--accent); display: inline-block;
  position: relative;
}
/* Pin容器 */
.dare-pin-wrap {
  position: relative;
}
.dare-list {
  max-width: 1400px; margin: 0 auto; padding: 80px 48px 60px;
}
.dare-item {
  min-height: 80vh; display: flex; flex-direction: column; justify-content: center;
  border-top: 1px solid var(--line); padding: 60px 0; position: relative;
}
.dare-item:last-child { border-bottom: 1px solid var(--line); }
.dare-item .dare-num {
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray);
  margin-bottom: 24px;
}
.dare-item .dare-phrase {
  font-family: var(--font-display); font-size: clamp(26px, 4.5vw, 60px);
  font-weight: 300; color: var(--white); line-height: 1.15; letter-spacing: -0.01em;
  max-width: 1000px;
}
.dare-item .dare-phrase .data-num {
  font-size: 1.5em; font-weight: 400; color: var(--accent); display: inline-block;
  position: relative;
}
/* Glitch效果 */
.dare-item .dare-phrase .data-num.glitch {
  animation: data-glitch 0.15s steps(2) 1;
}
@keyframes data-glitch {
  0% { text-shadow: 2px 0 #FF5252, -2px 0 var(--accent); transform: translateX(0); }
  25% { text-shadow: -2px 0 #FF5252, 2px 0 var(--accent); transform: translateX(1px); }
  50% { text-shadow: 2px 0 var(--accent), -2px 0 #FF5252; transform: translateX(-1px); }
  100% { text-shadow: none; transform: translateX(0); }
}
.dare-item .dare-sub {
  font-size: 15px; color: var(--gray); margin-top: 20px; max-width: 500px;
}
/* 数据更新时的强调色光晕 */
.dare-item .dare-phrase .data-num.updating::after {
  content: ''; position: absolute; inset: -20px; border-radius: 8px;
  box-shadow: 0 0 30px var(--accent-glow); animation: glow-fade 0.5s ease-out;
  pointer-events: none;
}
@keyframes glow-fade {
  0% { opacity: 1; } 100% { opacity: 0; }
}
@media (max-width: 768px) {
  .dare-header { padding: 80px 24px 0; }
  .dare-list { padding: 40px 24px 60px; }
  .dare-item { min-height: 50vh; padding: 40px 0; }
}

/* ═══════════════════════════════════════════════════
   2.5 ECO · 异业共生
   ═══════════════════════════════════════════════════ */
.eco-section {
  background: var(--black); padding: 60px 0; position: relative; overflow: hidden;
}
.eco-section::before {
  content: ''; position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(ellipse 60% 40% at 50% 50%, rgba(94,106,210,0.05), transparent 70%);
}
.eco-inner { max-width: 1400px; margin: 0 auto; padding: 0 48px; position: relative; z-index: 1; }
.eco-header { margin-bottom: 32px; }
.eco-header .tag {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray);
  margin-bottom: 24px;
}
.eco-header h2 {
  font-family: var(--font-display); font-size: clamp(28px, 4.5vw, 56px);
  font-weight: 300; color: var(--white); line-height: 1.25; letter-spacing: -0.01em;
  margin-bottom: 24px;
}
.eco-header h2 .accent { color: var(--accent); font-weight: 400; }
.eco-desc {
  font-size: 16px; color: var(--white-60); line-height: 1.8; max-width: 650px;
}
.eco-desc .accent { color: var(--accent); font-weight: 500; }

@media (max-width: 768px) {
  .eco-section { padding: 80px 0; }
  .eco-inner { padding: 0 24px; }
}

/* ═══════════════════════════════════════════════════
   ★★★ 商业帝国版图 — Empire Map ★★★
   ═══════════════════════════════════════════════════ */

/* 帝国版图容器 */
.empire-map {
  position: relative;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto 60px;
  height: 620px;
  overflow: hidden;
}
.empire-svg {
  width: 100%; height: 100%;
  position: absolute; top: 0; left: 0;
  pointer-events: none;
  z-index: 1;
}

/* SVG 连线增强可见度 */
.empire-svg line { opacity: 0.55 !important; vector-effect: non-scaling-stroke; }
.empire-svg path { opacity: 0.75 !important; vector-effect: non-scaling-stroke; }
.empire-svg circle { vector-effect: non-scaling-stroke; }
.empire-svg ellipse { opacity: 0.6 !important; }

/* 暗色滚动条 — 消除右侧白色竖线 */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: rgba(10,10,10,0.9); }
::-webkit-scrollbar-thumb { background: rgba(94,106,210,0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(94,106,210,0.5); }
html { scrollbar-width: thin; scrollbar-color: rgba(94,106,210,0.3) rgba(10,10,10,0.9); }

/* 异业共生区域背景粒子装饰 */
.eco-section::after {
  content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 15% 25%, rgba(94,106,210,0.4), transparent),
    radial-gradient(1px 1px at 85% 35%, rgba(0,200,83,0.3), transparent),
    radial-gradient(1px 1px at 75% 75%, rgba(255,179,0,0.3), transparent),
    radial-gradient(1px 1px at 25% 85%, rgba(255,112,67,0.3), transparent),
    radial-gradient(1.5px 1.5px at 90% 20%, rgba(94,106,210,0.3), transparent),
    radial-gradient(1px 1px at 10% 60%, rgba(94,106,210,0.35), transparent),
    radial-gradient(1px 1px at 95% 55%, rgba(0,200,83,0.25), transparent),
    radial-gradient(1.5px 1.5px at 50% 15%, rgba(94,106,210,0.3), transparent),
    radial-gradient(1px 1px at 60% 90%, rgba(255,179,0,0.25), transparent),
    radial-gradient(1px 1px at 35% 50%, rgba(94,106,210,0.2), transparent),
    radial-gradient(1px 1px at 80% 65%, rgba(94,106,210,0.25), transparent),
    radial-gradient(1px 1px at 20% 40%, rgba(0,200,83,0.2), transparent),
    radial-gradient(1px 1px at 92% 80%, rgba(255,112,67,0.25), transparent),
    radial-gradient(1px 1px at 8% 15%, rgba(94,106,210,0.3), transparent),
    radial-gradient(1px 1px at 96% 10%, rgba(0,200,83,0.2), transparent),
    radial-gradient(1px 1px at 5% 75%, rgba(255,179,0,0.2), transparent),
    radial-gradient(1.5px 1.5px at 97% 45%, rgba(94,106,210,0.3), transparent),
    radial-gradient(1px 1px at 3% 35%, rgba(94,106,210,0.25), transparent),
    radial-gradient(1px 1px at 88% 92%, rgba(94,106,210,0.25), transparent),
    radial-gradient(1px 1px at 45% 80%, rgba(0,200,83,0.2), transparent),
    radial-gradient(1px 1px at 55% 20%, rgba(94,106,210,0.2), transparent),
    radial-gradient(1px 1px at 70% 50%, rgba(255,179,0,0.15), transparent),
    radial-gradient(1px 1px at 30% 65%, rgba(94,106,210,0.2), transparent),
    radial-gradient(1px 1px at 93% 70%, rgba(0,200,83,0.2), transparent);
  background-size: 100% 100%;
  opacity: 0.8;
  animation: eco-particle-drift 20s ease-in-out infinite alternate;
}
@keyframes eco-particle-drift {
  0% { transform: translate(0, 0); }
  100% { transform: translate(-10px, 8px); }
}

/* 中心核 — SO共生引擎 */
.empire-core {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 130px; height: 130px;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 40%, rgba(94,106,210,0.9), rgba(40,50,120,0.95));
  color: var(--white);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-size: 22px; font-weight: 600; letter-spacing: 0.04em; text-align: center;
  box-shadow:
    0 0 60px rgba(94,106,210,0.4),
    0 0 120px rgba(94,106,210,0.15),
    inset 0 0 30px rgba(255,255,255,0.05);
  z-index: 10;
  transition: box-shadow 0.4s var(--ease);
}
.empire-core:hover {
  box-shadow:
    0 0 80px rgba(94,106,210,0.6),
    0 0 160px rgba(94,106,210,0.2),
    inset 0 0 40px rgba(255,255,255,0.1);
}
.empire-core small {
  font-size: 11px; font-weight: 400; opacity: 0.8; margin-top: 4px;
  letter-spacing: 0.1em;
}
.empire-core-globe {
  width: 56px; height: 56px; border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, rgba(180,190,255,0.5), rgba(94,106,210,0.2) 40%, transparent 70%),
    radial-gradient(circle at 65% 65%, rgba(94,106,210,0.3), transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(20,20,40,0.6), rgba(10,10,20,0.8));
  border: 1px solid rgba(94,106,210,0.4);
  position: relative;
  margin-bottom: 6px;
  animation: eco-globe-spin 8s linear infinite;
  box-shadow: inset -8px -8px 20px rgba(0,0,0,0.6), 0 0 20px rgba(94,106,210,0.25);
}
.empire-core-globe::before {
  content: ''; position: absolute; inset: 0; border-radius: 50%;
  background: repeating-linear-gradient(90deg, transparent 0px, transparent 6px, rgba(94,106,210,0.08) 6px, rgba(94,106,210,0.08) 7px);
  mix-blend-mode: screen;
}
.empire-core-globe::after {
  content: ''; position: absolute; inset: 2px; border-radius: 50%;
  background: repeating-linear-gradient(0deg, transparent 0px, transparent 6px, rgba(94,106,210,0.06) 6px, rgba(94,106,210,0.06) 7px);
  mix-blend-mode: screen;
}
.empire-core-text { display: flex; flex-direction: column; align-items: center; }

/* 四大城邦节点 */
.empire-city {
  position: absolute;
  top: var(--cy); left: var(--cx);
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 5;
  cursor: pointer;
}
.empire-city-dot {
  display: block;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--c);
  margin: 0 auto 10px;
  box-shadow: 0 0 16px var(--c), 0 0 32px var(--c);
  position: relative;
  transition: transform 0.3s var(--ease);
}
.empire-city-dot::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 100%; height: 100%; border-radius: 50%;
  border: 2px solid var(--c);
  animation: empire-pulse 2s infinite;
}
.empire-city-dot::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 150%; height: 150%; border-radius: 50%;
  border: 1px solid var(--c);
  opacity: 0.2;
}
.empire-city:hover .empire-city-dot { transform: scale(1.3); }
.empire-city-name {
  display: block;
  font-size: 15px; font-weight: 500; color: var(--white);
  margin-bottom: 3px;
  white-space: nowrap;
}
.empire-city-sub {
  display: block;
  font-size: 11px; color: var(--gray);
  letter-spacing: 0.04em;
}

/* 街区节点 */
.empire-block {
  position: absolute;
  top: var(--by); left: var(--bx);
  transform: translate(-50%, -50%);
  width: 56px; height: 56px; border-radius: 50%;
  background: rgba(30,30,40,0.9); backdrop-filter: blur(8px);
  border: 1.5px solid rgba(94,106,210,0.4);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; color: var(--white); font-weight: 500;
  transition: all 0.3s var(--ease);
  z-index: 3;
  cursor: pointer;
  animation: empire-float 4s ease-in-out infinite;
  box-shadow: 0 0 12px rgba(94,106,210,0.15), inset 0 0 8px rgba(94,106,210,0.05);
}
.empire-block:nth-child(odd) { animation-delay: 0.5s; }
.empire-block:nth-child(even) { animation-delay: 1s; }
.empire-block:hover {
  border-color: var(--accent); background: rgba(94,106,210,0.15);
  transform: translate(-50%, -50%) scale(1.2);
  z-index: 8;
  box-shadow: 0 0 24px rgba(94,106,210,0.35);
}

/* 行业微节点（第三层） */
.empire-micro {
  position: absolute;
  top: var(--my); left: var(--mx);
  transform: translate(-50%, -50%);
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(94,106,210,0.4);
  border: 1px solid rgba(94,106,210,0.3);
  z-index: 2;
  animation: empire-twinkle 3s ease-in-out infinite;
}
.empire-micro:nth-child(3n) { animation-delay: 0.8s; }
.empire-micro:nth-child(5n) { animation-delay: 1.5s; }

/* 数据流粒子 */
.empire-particle {
  position: absolute;
  width: 4px; height: 4px; border-radius: 50%;
  background: #5E6AD2;
  box-shadow: 0 0 8px #5E6AD2;
  z-index: 4;
  pointer-events: none;
}

/* 规模指示器 */
.empire-scale {
  position: absolute;
  bottom: 8px; right: 8px;
  display: flex; gap: 16px;
  font-size: 10px; color: var(--gray);
  letter-spacing: 0.1em; text-transform: uppercase;
  z-index: 5;
}
.empire-scale span { display: flex; align-items: center; gap: 4px; }
.empire-scale b { color: var(--accent); font-weight: 600; font-size: 12px; }

/* 城邦详情卡片网格 */
.empire-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  margin-bottom: 48px;
}
.empire-city-card {
  padding: 36px 28px;
  border: 1px solid var(--line);
  margin: -1px 0 0 -1px;
  transition: all 0.4s var(--ease);
  position: relative;
  background: rgba(17,17,17,0.5);
}
.empire-city-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--cc);
  opacity: 0;
  transition: opacity 0.4s;
}
.empire-city-card:hover {
  background: rgba(255,255,255,0.02); border-color: var(--line-hover);
  transform: translateY(-2px); z-index: 2;
}
.empire-city-card:hover::before { opacity: 1; }
.empire-city-head { margin-bottom: 20px; }
.empire-city-num {
  font-family: var(--font-display); font-size: 36px; font-weight: 100;
  color: var(--cc); margin-bottom: 6px; display: block;
}
.empire-city-head h3 {
  font-size: 18px; font-weight: 500; color: var(--white);
  margin-bottom: 4px;
}
.empire-city-head small {
  font-size: 12px; color: var(--gray);
}
.empire-blocks { display: flex; flex-direction: column; gap: 14px; }
.empire-block-row {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}
.empire-block-row:last-child { border-bottom: none; }
.empire-block-row b { color: var(--white); font-weight: 500; white-space: nowrap; }
.empire-block-row span { color: var(--gray); font-size: 11px; text-align: right; }

/* 商业循环条 */
.empire-cycle-bar {
  display: flex; align-items: center; justify-content: center; gap: 0;
  padding: 20px 32px;
  border: 1px solid var(--line); border-radius: 12px;
  background: rgba(17,17,17,0.6); backdrop-filter: blur(8px);
  flex-wrap: wrap;
  max-width: 900px;
  margin: 0 auto;
}
.empire-cycle-step {
  display: flex; align-items: center; gap: 12px;
  padding: 8px 16px;
}
.empire-cycle-icon {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--accent-dim); border: 1px solid rgba(94,106,210,0.3);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; color: var(--accent); font-weight: 600;
}
.empire-cycle-text { display: flex; flex-direction: column; }
.empire-cycle-text b { font-size: 13px; color: var(--white); font-weight: 500; }
.empire-cycle-text small { font-size: 11px; color: var(--gray); margin-top: 2px; }
.empire-cycle-arrow {
  font-size: 16px; color: var(--gray); padding: 0 8px;
}
.empire-cycle-arrow.empire-cycle-return {
  color: var(--accent); font-size: 20px;
  animation: eco-return-spin 3s linear infinite;
}

/* 动画 */
@keyframes empire-pulse {
  0% { transform: translate(-50%, -50%) scale(1); opacity: 0.8; }
  100% { transform: translate(-50%, -50%) scale(2.5); opacity: 0; }
}
@keyframes empire-float {
  0%,100% { transform: translate(-50%, -50%) translateY(0); }
  50% { transform: translate(-50%, -50%) translateY(-6px); }
}
@keyframes empire-twinkle {
  0%,100% { opacity: 0.3; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.3); }
}

/* 响应式 */
@media (max-width: 768px) {
  .empire-map { height: 420px; margin-bottom: 40px; }
  .empire-grid { grid-template-columns: 1fr 1fr; }
  .empire-city-name { font-size: 13px; }
  .empire-city-sub { font-size: 10px; }
  .empire-block { width: 44px; height: 44px; font-size: 10px; }
  .empire-core { width: 100px; height: 100px; font-size: 18px; }
  .empire-core-globe { width: 44px; height: 44px; }
  .empire-city-card { padding: 28px 20px; }
  .empire-city-num { font-size: 28px; }
  .empire-cycle-bar { flex-direction: column; gap: 8px; }
  .empire-cycle-arrow { transform: rotate(90deg); }
  .empire-cycle-arrow.empire-cycle-return { transform: none; }
  .empire-scale { font-size: 9px; gap: 10px; }
}

/* ═══════════════════════════════════════════════════
   3. BY NUMBERS · 关键数据矩阵
   ═══════════════════════════════════════════════════ */
.numbers-section {
  background: var(--black); padding: 80px 0; position: relative; overflow: hidden;
}
/* 数据抽象背景 */
.numbers-section::before {
  content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: var(--numbers-bg, none) center/cover no-repeat;
  opacity: 0.08; mix-blend-mode: screen;
}
.numbers-section::after {
  content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(ellipse 50% 40% at 50% 50%, rgba(94,106,210,0.04), transparent 70%);
}
.numbers-header {
  max-width: 1400px; margin: 0 auto 80px; padding: 0 48px; position: relative; z-index: 1;
}
.numbers-header .tag {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray);
  margin-bottom: 24px;
}
.numbers-desc {
  font-size: 16px; color: var(--white-60); margin-top: 8px;
}
.numbers-grid {
  max-width: 1400px; margin: 0 auto; padding: 0 48px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  position: relative; z-index: 1;
}
.numbers-grid .num-block {
  padding: 0 32px; border-left: 1px solid var(--line); position: relative;
  transition: box-shadow 0.5s;
}
.numbers-grid .num-block:first-child { border-left: none; padding-left: 0; }
.numbers-grid .num-block.glow { box-shadow: 0 0 40px var(--accent-glow); }
.numbers-grid .num-value {
  font-family: var(--font-display); font-size: clamp(40px, 7vw, 96px);
  font-weight: 300; color: var(--white); line-height: 1.1; margin-bottom: 16px;
  letter-spacing: -0.03em; word-break: break-all;
}
.numbers-grid .num-value .suffix { font-size: 0.5em; color: var(--gray); }
.numbers-grid .num-label {
  font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--gray);
}
.numbers-grid .num-value.flash {
  animation: num-flash 0.15s steps(2) 1;
}
@keyframes num-flash {
  0% { transform: translateX(0); text-shadow: none; }
  50% { transform: translateX(1px); text-shadow: 2px 0 #FF5252, -2px 0 var(--accent); color: var(--accent); }
  100% { transform: translateX(0); text-shadow: none; }
}
@media (max-width: 768px) {
  .numbers-grid { grid-template-columns: 1fr 1fr; gap: 40px 0; padding: 0 24px; }
  .numbers-grid .num-block { padding: 0 16px; }
  .numbers-grid .num-block:nth-child(3) { border-left: none; padding-left: 0; }
  .numbers-section { padding: 80px 0; }
  .numbers-header { padding: 0 24px; margin-bottom: 48px; }
}

/* ═══════════════════════════════════════════════════
   4. OUR VISION · 愿景照片区
   ═══════════════════════════════════════════════════ */
.vision-section {
  min-height: 100vh; position: relative; display: flex; align-items: center;
  overflow: hidden; background: var(--black);
}
.vision-bg {
  position: absolute; inset: 0; z-index: 1;
  /* 照片层 — 暗色建筑/抽象几何摄影 */
  /* background-image lazy-loaded via JS data-bg */
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  /* 叠加渐变保持暗色氛围 */
  background-blend-mode: overlay;
}
/* 网格叠加层（保持视觉层次） */
.vision-bg::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(94,106,210,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(94,106,210,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 0%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 0%, transparent 80%);
}
/* 70%黑色暗化遮罩 + 渐变过渡 */
.vision-bg::after {
  content: ''; position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(10,10,10,0.9) 0%, rgba(10,10,10,0.65) 40%, rgba(10,10,10,0.65) 60%, rgba(10,10,10,0.9) 100%),
    radial-gradient(ellipse 80% 60% at 30% 40%, rgba(94,106,210,0.12), transparent 60%),
    radial-gradient(ellipse 60% 50% at 70% 60%, rgba(255,255,255,0.03), transparent 60%);
}
/* 愿景环境光 */
.vision-orb {
  position: absolute; width: 500px; height: 500px; border-radius: 50%;
  background: rgba(94,106,210,0.05); filter: blur(100px);
  top: 30%; left: 40%; z-index: 1; animation: vision-pulse 8s infinite ease-in-out;
}
@keyframes vision-pulse {
  0%,100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.2); opacity: 0.9; }
}
.vision-inner {
  position: relative; z-index: 2; max-width: 1400px; margin: 0 auto;
  padding: 0 48px; width: 100%;
}
.vision-inner h2 {
  font-family: var(--font-display); font-size: clamp(36px, 7vw, 100px);
  font-weight: 300; color: var(--white); line-height: 1.15; letter-spacing: -0.02em;
  padding-bottom: 0.1em;
}
.vision-inner h2 .line-wrap { display: block; overflow: hidden; padding-bottom: 0.05em; }
.vision-inner h2 .line { display: block; transform: translateY(110%); }
.vision-inner h2 .accent { color: var(--accent); font-weight: 400; }
.vision-sub {
  font-size: 14px; letter-spacing: 0.15em; color: var(--white-40); margin-top: 32px;
  text-transform: uppercase;
}
@media (max-width: 768px) { .vision-inner { padding: 0 24px; } }

/* ═══════════════════════════════════════════════════
   5. HOW WE WORK · 方法论
   ═══════════════════════════════════════════════════ */
.method-section {
  background: var(--charcoal); padding: 80px 0; position: relative; overflow: visible;
}
/* 办公环境照片背景（低透明度） */
.method-section::before {
  content: ''; position: absolute; inset: 0; z-index: 0;
  background: var(--method-bg, none) center/cover no-repeat;
  opacity: 0.06; filter: grayscale(100%);
}
.method-section::after {
  content: ''; position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(ellipse 60% 40% at 30% 50%, rgba(94,106,210,0.06), transparent 70%);
}
.method-inner { max-width: 1400px; margin: 0 auto; padding: 0 48px; position: relative; z-index: 1; }
.method-header .tag {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray);
  margin-bottom: 24px;
}
.method-header h2 {
  font-family: var(--font-display); font-size: clamp(32px, 5vw, 64px);
  font-weight: 300; color: var(--white); margin-bottom: 80px; letter-spacing: -0.01em;
}
.method-header h2 .accent { color: var(--accent); }
.method-desc {
  font-size: 16px; color: var(--white-60); margin-top: 8px; line-height: 1.6;
}
.method-list .method-item {
  display: grid; grid-template-columns: 80px 1fr 1fr; gap: 48px; align-items: start;
  padding: 40px 0; border-top: 1px solid var(--line); transition: all 0.4s var(--ease);
}
.method-list .method-item:last-child { border-bottom: 1px solid var(--line); }
.method-list .method-item:hover { background: rgba(255,255,255,0.01); }
.method-num {
  font-family: var(--font-display); font-size: 48px; font-weight: 100; color: var(--gray);
  transition: color 0.4s; line-height: 1;
}
.method-item:hover .method-num { color: var(--white); }
.method-title {
  font-size: 22px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--white); position: relative; padding-bottom: 0;
}
.method-title .zh {
  display: block; font-size: 13px; font-weight: 400; color: var(--accent);
  letter-spacing: 0.04em; text-transform: none; margin-top: 4px;
}
.method-item:hover .method-title::after {
  content: ''; position: absolute; bottom: -4px; left: 0; height: 1px;
  background: var(--white); animation: underline-grow 0.4s var(--ease) forwards;
}
@keyframes underline-grow { from { width: 0; } to { width: 100%; } }
.method-desc {
  font-size: 15px; color: var(--gray); line-height: 1.7;
}
@media (max-width: 768px) {
  .method-inner { padding: 0 24px; }
  .method-section { padding: 80px 0; }
  .method-list .method-item { grid-template-columns: 1fr; gap: 16px; padding: 32px 0; }
  .method-num { font-size: 32px; }
}

/* ═══════════════════════════════════════════════════
   6. WHERE WE APPLY · 应用场景
   ═══════════════════════════════════════════════════ */
.apply-section { background: var(--black); padding: 80px 0; position: relative; }
.apply-section::before {
  content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: url('../images/apply-bg.jpg') center/cover no-repeat;
  opacity: 0.06;
}
.apply-inner { max-width: 1400px; margin: 0 auto; padding: 0 48px; position: relative; z-index: 1; }
.apply-header .tag {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray);
  margin-bottom: 24px;
}
.apply-header h2 {
  font-family: var(--font-display); font-size: clamp(32px, 5vw, 64px);
  font-weight: 300; color: var(--white); margin-bottom: 80px; letter-spacing: -0.01em;
}
.apply-header h2 .accent { color: var(--accent); }
.apply-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
}
.apply-card {
  padding: 48px; border: 1px solid var(--line); margin: -1px 0 0 -1px;
  transition: all 0.3s var(--ease); position: relative; overflow: hidden;
}
/* ★ .apply-card 的 cursor:none 跟随 body 的全局设置即可，不单独写 */
.apply-card:hover {
  background: rgba(255,255,255,0.02); border-color: var(--line-hover); z-index: 2;
  transform: translateY(-2px);
}
.apply-card .apply-title {
  font-size: 20px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--white); margin-bottom: 16px;
}
.apply-card .apply-title .zh {
  display: block; font-size: 13px; font-weight: 400; color: var(--accent);
  letter-spacing: 0.04em; text-transform: none; margin-top: 4px;
}
.apply-card .apply-desc {
  font-size: 14px; color: var(--gray); line-height: 1.7;
}
.apply-card .apply-arrow {
  position: absolute; top: 48px; right: 48px; opacity: 0; transform: translateX(-10px);
  transition: all 0.3s var(--ease); color: var(--accent);
}
.apply-card:hover .apply-arrow { opacity: 1; transform: translateX(0); }
@media (max-width: 768px) {
  .apply-inner { padding: 0 24px; }
  .apply-section { padding: 80px 0; }
  .apply-grid { grid-template-columns: 1fr; }
  .apply-card { padding: 32px 24px; }
}

/* ═══════════════════════════════════════════════════
   7. VOICES · 用户证言横向带
   ═══════════════════════════════════════════════════ */
.voices-section { background: var(--charcoal); padding: 80px 0; overflow: hidden; position: relative; }
.voices-section::before {
  content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: url('../images/voices-bg.jpg') center/cover no-repeat;
  opacity: 0.06;
}
.voices-header { max-width: 1400px; margin: 0 auto 60px; padding: 0 48px; position: relative; z-index: 1; }
.voices-header .tag {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray);
  margin-bottom: 24px;
}
.voices-header h2 {
  font-family: var(--font-display); font-size: clamp(32px, 5vw, 64px);
  font-weight: 300; color: var(--white); letter-spacing: -0.01em;
}
.voices-track-wrap {
  overflow-x: auto; overflow-y: hidden; scrollbar-width: none;
  -webkit-overflow-scrolling: touch; cursor: grab;
  position: relative; z-index: 1;
}
.voices-track-wrap::-webkit-scrollbar { display: none; }
.voices-track-wrap.grabbing { cursor: grabbing; }
.voices-track {
  display: flex; gap: 0; padding: 0 48px; width: max-content;
}
.voice-card {
  width: 400px; padding: 0 40px; border-left: 1px solid var(--line);
  flex-shrink: 0; transition: transform 0.4s var(--ease);
}
.voice-card:first-child { border-left: none; }
.voice-card:hover { transform: translateY(-4px); }
.voice-card .vc-company {
  font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--gray);
  margin-bottom: 24px;
}
.voice-card .vc-quote {
  font-size: 22px; font-weight: 300; color: var(--white); line-height: 1.5;
  margin-bottom: 32px; max-width: 320px;
}
.voice-card .vc-metric {
  font-family: var(--font-display); font-size: 18px; font-weight: 500;
  color: var(--accent); margin-bottom: 24px; letter-spacing: 0.02em;
}
.voice-card .vc-person {
  font-size: 12px; color: var(--gray);
}
.voice-card .vc-person .name { color: var(--white-80); margin-right: 8px; }
@media (max-width: 768px) {
  .voices-header { padding: 0 24px; }
  .voices-track { padding: 0 24px; }
  .voice-card { width: 300px; padding: 0 24px; }
  .voice-card .vc-quote { font-size: 18px; }
  .voices-section { padding: 80px 0; }
}

/* ═══════════════════════════════════════════════════
   8. COLLABORATE · 加入内测
   ═══════════════════════════════════════════════════ */
.collab-section { background: var(--black); padding: 80px 0; position: relative; }
.collab-section::before {
  content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: url('../images/collab-bg.jpg') center/cover no-repeat;
  opacity: 0.06;
}
.collab-inner { max-width: 800px; margin: 0 auto; padding: 0 48px; position: relative; z-index: 1; }
.collab-header .tag {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray);
  margin-bottom: 24px;
}
.collab-header h2 {
  font-family: var(--font-display); font-size: clamp(32px, 6vw, 72px);
  font-weight: 300; color: var(--white); margin-bottom: 16px; letter-spacing: -0.02em;
}
.collab-header h2 .accent { color: var(--accent); }
.collab-header p {
  font-size: 16px; color: var(--gray); margin-bottom: 60px;
}
.collab-form { margin-bottom: 60px; }
.collab-form .field { margin-bottom: 32px; }
.collab-form .field label {
  display: block; font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--gray); margin-bottom: 8px;
}
.collab-form .field input {
  width: 100%; background: none; border: none; border-bottom: 1px solid var(--gray-dark);
  padding: 8px 0; font-size: 16px; color: var(--white); outline: none;
  transition: border-color 0.3s;
}
.collab-form .field input::placeholder { color: var(--gray-darker); }
.collab-form .field input:focus { border-bottom-color: var(--white); }
.collab-submit {
  font-size: 14px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--white); padding: 16px 0; display: inline-flex; align-items: center; gap: 8px;
  transition: opacity 0.3s;
}
.collab-submit .arrow { transition: transform 0.3s var(--ease); display: inline-block; }
.collab-submit:hover { opacity: 0.6; }
.collab-submit:hover .arrow { transform: translateX(8px); }
.collab-submit.submitted { color: var(--gray); pointer-events: none; }

.beta-progress { margin-top: 48px; }
.beta-bar {
  height: 1px; background: rgba(255,255,255,0.1); position: relative; overflow: visible;
}
.beta-bar .fill {
  height: 100%; background: var(--white); transition: width 1s var(--ease);
  position: relative;
}
.beta-bar .fill .breath-dot {
  position: absolute; right: 0; top: 50%; transform: translate(50%, -50%);
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
  animation: breath 1.5s infinite ease-in-out;
}
@keyframes breath {
  0%,100% { opacity: 1; box-shadow: 0 0 0 0 var(--accent-light); }
  50% { opacity: 0.5; box-shadow: 0 0 12px 4px var(--accent-light); }
}
.beta-info {
  margin-top: 12px; display: flex; justify-content: space-between;
  font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--gray);
}
@media (max-width: 768px) { .collab-inner { padding: 0 24px; } .collab-section { padding: 80px 0; } }

/* ═══════════════════════════════════════════════════
   9. FOOTER
   ═══════════════════════════════════════════════════ */
.footer { background: var(--black); padding: 120px 0 48px; border-top: 1px solid var(--line); }
.footer-inner { max-width: 1400px; margin: 0 auto; padding: 0 48px; }
.footer-big {
  font-family: var(--font-display); font-size: clamp(32px, 6vw, 80px);
  font-weight: 300; color: var(--white); line-height: 1.15; letter-spacing: -0.02em;
  margin-bottom: 80px; padding-bottom: 0.1em;
}
.footer-big .line-wrap { display: block; overflow: hidden; padding-bottom: 0.05em; }
.footer-big .line-wrap span { display: block; }
.footer-grid {
  display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 48px;
  padding-top: 48px; border-top: 1px solid var(--line);
}
.footer-col h4 {
  font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--gray);
  margin-bottom: 16px;
}
.footer-col p, .footer-col a {
  font-size: 12px; color: var(--gray); line-height: 1.8; display: block;
  transition: color 0.3s;
}
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  margin-top: 60px; padding-top: 24px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center;
}
.footer-bottom .copyright { font-size: 11px; color: var(--gray-dark); }
.system-status {
  display: flex; align-items: center; gap: 8px;
  font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--gray);
}
.system-status .status-dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--green);
  animation: heartbeat 1s infinite ease-in-out;
}
.system-status.down .status-dot { background: var(--red); animation: none; }
@keyframes heartbeat {
  0%,100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.6; }
}
@media (max-width: 768px) {
  .footer-inner { padding: 0 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 16px; align-items: flex-start; }
}

/* ── 通用动画 ── */
.reveal-up { opacity: 0; transform: translateY(40px); }
.reveal-up.visible { opacity: 1; transform: translateY(0); transition: opacity 1s var(--ease-power), transform 1s var(--ease-power); }

/* ── 数据骨架 ── */
.skeleton { display: inline-block; background: var(--gray-darker); border-radius: 2px; color: transparent; user-select: none; }

/* ═══════════════════════════════════════════════════
   页面过渡动画 · View Transitions API
   ═══════════════════════════════════════════════════ */
@view-transition {
  navigation: auto;
}
::view-transition-old(root) {
  animation: fade-out 0.3s var(--ease) forwards;
}
::view-transition-new(root) {
  animation: fade-in 0.5s var(--ease) 0.15s forwards;
}
@keyframes fade-out {
  to { opacity: 0; filter: blur(4px); }
}
@keyframes fade-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ═══════════════════════════════════════════════════
   桌面端优化 · 大屏体验
   ═══════════════════════════════════════════════════ */
@media (min-width: 1600px) {
  .hero-inner, .what-inner, .dare-list, .eco-inner, .method-inner, .apply-inner, .footer-inner {
    max-width: 1600px;
  }
  .hero h1 { font-size: clamp(24px, 3.8vw, 56px); }
  .what-grid { grid-template-columns: repeat(4, 1fr); }
  .empire-grid { grid-template-columns: repeat(4, 1fr); }
  .empire-map { max-width: 1200px; height: 680px; }
}

/* 键盘导航可见 */
*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 2px;
}

/* ═══════════════════════════════════════════════════
   HERO 副标题增强
   ═══════════════════════════════════════════════════ */
.hero-sub-sm {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--white-40);
  letter-spacing: 0.04em;
  font-weight: 300;
}

/* ═══════════════════════════════════════════════════
   商业模式 · 五级收入金字塔
   ═══════════════════════════════════════════════════ */
.bizmodel-section {
  padding: 80px 0;
  background: var(--charcoal);
  position: relative;
  overflow: hidden;
}
.bizmodel-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url('../images/bizmodel-bg.jpg') center/cover no-repeat;
  opacity: 0.06;
  pointer-events: none;
}
.bizmodel-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  position: relative;
  z-index: 1;
}
.bizmodel-header {
  text-align: center;
  margin-bottom: 80px;
}
.bizmodel-header h2 {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 300;
  letter-spacing: -0.02em;
  margin: 16px 0 24px;
  line-height: 1.15;
}
.bizmodel-desc {
  font-size: 17px;
  color: var(--white-60);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ═══════════════════════════════════════════════════
   商业逻辑链流程图
   ═══════════════════════════════════════════════════ */
.flow-chain {
  margin-bottom: 80px;
}
.flow-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 40px;
  position: relative;
}
.flow-row::after {
  content: '';
  position: absolute;
  top: 40px;
  left: 60px;
  right: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-light), transparent);
  z-index: 1;
}
.flow-row-second {
  margin-top: 60px;
}
.flow-step {
  flex: 1;
  text-align: center;
  padding: 0 15px;
  position: relative;
  z-index: 2;
  opacity: 0;
  transform: translateY(30px);
}
.flow-step.reveal-up {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.flow-icon-wrap {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--charcoal-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  transition: border-color 0.3s, background 0.3s;
}
.flow-step:hover .flow-icon-wrap {
  border-color: var(--accent-light);
  background: var(--accent-dim);
}
.flow-title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--white);
}
.flow-desc {
  font-size: 13px;
  color: var(--white-40);
  line-height: 1.5;
  margin-bottom: 12px;
}
.flow-arrow {
  font-size: 24px;
  color: var(--accent);
  opacity: 0.4;
  font-weight: 300;
}

/* 分叉汇聚行 */
.flow-split {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 60px 0;
  position: relative;
}
.split-left, .split-right {
  flex: 1;
  text-align: center;
  padding: 24px 0;
}
.split-label {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}
.split-desc {
  font-size: 13px;
  color: var(--white-40);
  line-height: 1.6;
}
.split-center {
  width: 160px;
  height: 160px;
  position: relative;
  flex-shrink: 0;
}
.split-core {
  width: 100%;
  height: 100%;
  position: relative;
}
.core-ring {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 1px solid var(--accent-light);
  background: var(--accent-dim);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  animation: corePulse 4s ease-in-out infinite;
}
@keyframes corePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(94,106,210,0.2); }
  50% { box-shadow: 0 0 0 20px rgba(94,106,210,0); }
}
.core-ring span {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 500;
  color: var(--white);
  letter-spacing: 0.04em;
}
.core-ring small {
  font-size: 11px;
  color: var(--white-40);
  margin-top: 4px;
  letter-spacing: 0.02em;
}

/* 异业分佣 */
.commission-section {
  margin-bottom: 80px;
}
.commission-header {
  text-align: center;
  margin-bottom: 48px;
}
.commission-header h3 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 300;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.commission-header p {
  font-size: 15px;
  color: var(--white-60);
  max-width: 650px;
  margin: 0 auto;
  line-height: 1.6;
}
.commission-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.commission-card {
  background: var(--charcoal-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 32px 24px;
  text-align: center;
  transition: border-color 0.3s, transform 0.3s;
}
.commission-card:hover {
  border-color: var(--accent-light);
  transform: translateY(-4px);
}
.comm-icon {
  margin-bottom: 16px;
  display: flex;
  justify-content: center;
}
.commission-card h4 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--white);
}
.comm-rate {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
}
.commission-card p {
  font-size: 13px;
  color: var(--white-40);
  line-height: 1.5;
}

/* 若干联盟生态 · 服务云 */
.alliance-section {
  padding-top: 40px;
  border-top: 1px solid var(--line);
}
.alliance-header {
  text-align: center;
  margin-bottom: 48px;
}
.alliance-header h3 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 300;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.alliance-header p {
  font-size: 15px;
  color: var(--white-60);
  max-width: 650px;
  margin: 0 auto;
  line-height: 1.6;
}

/* 联盟服务云 */
.alliance-cloud {
  position: relative;
  height: 280px;
  margin: 20px 0 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cloud-tag {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(calc(var(--tx) * 160px), calc(var(--ty) * 160px)) scale(var(--s));
  background: var(--charcoal-2);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 8px 18px;
  font-size: 14px;
  color: var(--white);
  opacity: 0;
  animation: cloudFloat 4s ease-in-out infinite;
  animation-delay: var(--d);
  transition: border-color 0.3s, background 0.3s, transform 0.3s;
  cursor: default;
  white-space: nowrap;
}
.cloud-tag:hover {
  border-color: var(--accent-light);
  background: var(--accent-dim);
  transform: translate(calc(var(--tx) * 160px), calc(var(--ty) * 160px)) scale(calc(var(--s) + 0.1));
}
@keyframes cloudFloat {
  0%, 100% {
    opacity: 0.7;
    transform: translate(calc(var(--tx) * 160px), calc(var(--ty) * 160px)) scale(var(--s)) translateY(0);
  }
  50% {
    opacity: 1;
    transform: translate(calc(var(--tx) * 160px), calc(var(--ty) * 160px)) scale(var(--s)) translateY(-12px);
  }
}
.cloud-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 130px;
  height: 130px;
  border-radius: 50%;
  border: 1px solid var(--accent-light);
  background: var(--accent-dim);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 5;
  animation: corePulse 4s ease-in-out infinite;
}
.cloud-center span {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  color: var(--white);
  letter-spacing: 0.04em;
}
.cloud-center small {
  font-size: 11px;
  color: var(--white-40);
  margin-top: 4px;
}

/* 第三方运营商申请 */
.alliance-apply {
  background: var(--charcoal);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 48px;
  margin-top: 60px;
  transition: border-color 0.3s;
}
.alliance-apply:hover {
  border-color: var(--accent-light);
}
.alliance-apply-header {
  text-align: center;
  margin-bottom: 36px;
}
.alliance-apply-header h3 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--white);
  letter-spacing: -0.02em;
}
.alliance-apply-header p {
  font-size: 14px;
  color: var(--white-40);
  max-width: 500px;
  margin: 0 auto;
  line-height: 1.5;
}
.alliance-form {
  max-width: 640px;
  margin: 0 auto;
}
.alliance-form-row {
  display: flex;
  gap: 20px;
  margin-bottom: 20px;
}
.alliance-form .field {
  flex: 1;
}
.alliance-form .field label {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--white-40);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.alliance-form .field input,
.alliance-form .field select {
  width: 100%;
  background: var(--charcoal-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 15px;
  color: var(--white);
  font-family: var(--font-body);
  transition: border-color 0.3s, background 0.3s;
}
.alliance-form .field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23666' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  cursor: pointer;
}
.alliance-form .field input:focus,
.alliance-form .field select:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--charcoal);
}
.alliance-form .field input::placeholder {
  color: var(--white-40);
}
.alliance-submit {
  width: 100%;
  background: var(--accent);
  color: var(--white);
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 14px 0;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.3s, color 0.3s, border-color 0.3s;
  margin-top: 8px;
  letter-spacing: 0.02em;
}
.alliance-submit:hover {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
}

/* ═══════════════════════════════════════════════════
   COLLAB · 三入口卡片
   ═══════════════════════════════════════════════════ */
.join-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 60px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}
.join-card {
  background: var(--charcoal);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 36px 28px;
  text-align: center;
  transition: border-color 0.3s, transform 0.3s, background 0.3s;
}
.join-card:hover {
  border-color: var(--accent-light);
  transform: translateY(-4px);
  background: var(--charcoal-2);
}
.join-icon {
  font-size: 40px;
  margin-bottom: 16px;
}
.join-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 12px;
  color: var(--white);
}
.join-card p {
  font-size: 13px;
  color: var(--white-40);
  line-height: 1.6;
  margin-bottom: 20px;
}
.join-cta {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  border: 1px solid var(--accent-light);
  border-radius: 8px;
  padding: 8px 20px;
  transition: background 0.3s, color 0.3s;
}
.join-cta:hover {
  background: var(--accent);
  color: var(--white);
}
.join-cta-accent {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.join-cta-accent:hover {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
}

/* 表单 select 样式 */
.collab-form select {
  width: 100%;
  background: var(--charcoal);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 15px;
  color: var(--white);
  font-family: var(--font-body);
  transition: border-color 0.3s;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23666' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  cursor: pointer;
}
.collab-form select:focus {
  outline: none;
  border-color: var(--accent);
}

/* ═══════════════════════════════════════════════════
   响应式 · 新板块
   ═══════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .commission-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-row { flex-wrap: wrap; gap: 20px; }
  .flow-row::after { display: none; }
  .flow-step { flex: 0 0 calc(33.33% - 14px); }
  .flow-step .flow-arrow { display: none; }
  .flow-row-second .flow-step { flex: 0 0 calc(50% - 10px); }
  .flow-split { flex-direction: column; gap: 30px; margin: 40px 0; }
  .split-center { width: 120px; height: 120px; }
  .alliance-cloud { height: 220px; }
  .cloud-tag { transform: translate(calc(var(--tx) * 100px), calc(var(--ty) * 100px)) scale(calc(var(--s) * 0.8)); }
  @keyframes cloudFloat {
    0%, 100% { opacity: 0.7; transform: translate(calc(var(--tx) * 100px), calc(var(--ty) * 100px)) scale(calc(var(--s) * 0.8)) translateY(0); }
    50% { opacity: 1; transform: translate(calc(var(--tx) * 100px), calc(var(--ty) * 100px)) scale(calc(var(--s) * 0.8)) translateY(-8px); }
  }
  .join-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .commission-grid { grid-template-columns: 1fr; }
  .flow-row { flex-direction: column; gap: 16px; }
  .flow-step { flex: 1 1 100%; }
  .flow-row-second { margin-top: 40px; }
  .flow-split { margin: 30px 0; }
  .split-center { width: 100px; height: 100px; }
  .core-ring span { font-size: 14px; }
  .alliance-cloud { height: 200px; }
  .cloud-tag { font-size: 11px; padding: 6px 12px; transform: translate(calc(var(--tx) * 60px), calc(var(--ty) * 60px)) scale(calc(var(--s) * 0.6)); }
  @keyframes cloudFloat {
    0%, 100% { opacity: 0.7; transform: translate(calc(var(--tx) * 60px), calc(var(--ty) * 60px)) scale(calc(var(--s) * 0.6)) translateY(0); }
    50% { opacity: 1; transform: translate(calc(var(--tx) * 60px), calc(var(--ty) * 60px)) scale(calc(var(--s) * 0.6)) translateY(-6px); }
  }
  .cloud-center { width: 90px; height: 90px; }
  .cloud-center span { font-size: 12px; }
  .alliance-apply { padding: 28px 20px; }
  .alliance-form-row { flex-direction: column; gap: 16px; }
  .join-grid { grid-template-columns: 1fr; }
  .bizmodel-inner { padding: 0 20px; }
}

/* ═══════════════════════════════════════════════════
   桌面端优化 · 大屏体验 - 更新
   ═══════════════════════════════════════════════════ */
@media (min-width: 1600px) {
  .bizmodel-inner {
    max-width: 1600px;
  }
  .alliance-cloud { height: 360px; }
  .cloud-tag { transform: translate(calc(var(--tx) * 220px), calc(var(--ty) * 220px)) scale(var(--s)); }
  @keyframes cloudFloat {
    0%, 100% { opacity: 0.7; transform: translate(calc(var(--tx) * 220px), calc(var(--ty) * 220px)) scale(var(--s)) translateY(0); }
    50% { opacity: 1; transform: translate(calc(var(--tx) * 220px), calc(var(--ty) * 220px)) scale(var(--s)) translateY(-14px); }
  }
}

/* 平滑滚动（支持 prefers-reduced-motion） */
@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; }
}

/* ═══════════════════════════════════════════════════
   滚动进度条
   ═══════════════════════════════════════════════════ */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 2px;
  z-index: 9997; background: rgba(255,255,255,0.04); pointer-events: none;
}
.scroll-progress-bar {
  height: 100%; width: 0%; background: var(--accent);
  transition: width 0.1s linear; box-shadow: 0 0 8px rgba(94,106,210,0.5);
}

/* ═══════════════════════════════════════════════════
   分页式设计 · 桌面端 Scroll Snap
   ═══════════════════════════════════════════════════ */
@media (min-width: 1025px) {
  html {
    scroll-snap-type: y proximity;
    scroll-behavior: smooth;
    scroll-padding-top: 72px;
  }
  section[id], footer[id] {
    scroll-snap-align: start;
    scroll-snap-stop: normal;
  }
  /* 确保每个section至少占满一屏 */
  .hero { min-height: 100vh; }
  .what-section { min-height: 100vh; display: flex; align-items: center; }
  .product-section { min-height: 100vh; display: flex; align-items: center; }
  .dare-section { min-height: 100vh; display: flex; align-items: center; }
  .eco-section { min-height: auto; display: flex; align-items: center; padding-top: 60px; padding-bottom: 60px; }
  .bizmodel-section { min-height: 100vh; }
  .numbers-section { min-height: 100vh; display: flex; align-items: center; }
  .vision-section { min-height: 100vh; display: flex; align-items: center; }
  .method-section { min-height: 100vh; display: flex; align-items: flex-start; }
  .apply-section { min-height: 100vh; display: flex; align-items: center; }
  .tech-section { min-height: 100vh; display: flex; align-items: flex-start; }
  .voices-section { min-height: 100vh; display: flex; align-items: center; }
  .collab-section { min-height: 100vh; display: flex; align-items: center; }
  .footer { min-height: auto; }
}

/* ═══════════════════════════════════════════════════
   Section 背景图系统
   ═══════════════════════════════════════════════════ */
.what-section::before,
.dare-section::before,
.eco-section::before,
.bizmodel-section::before,
.apply-section::before,
.voices-section::before,
.collab-section::before {
  content: ''; position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background-size: cover; background-position: center; background-repeat: no-repeat;
  opacity: 0; transition: opacity 1.2s var(--ease);
}
.what-section::before { background-image: url('../images/what-bg.jpg'); }
.dare-section::before { background-image: url('../images/dare-bg.jpg'); }
.eco-section::before { background-image: url('../images/eco-bg.jpg'); }
.bizmodel-section::before { background-image: url('../images/bizmodel-bg.jpg'); }
.apply-section::before { background-image: url('../images/apply-bg.jpg'); }
.voices-section::before { background-image: url('../images/voices-bg.jpg'); }
.collab-section::before { background-image: url('../images/collab-bg.jpg'); }
.product-section::before { background-image: url('../images/tech-texture.jpg'); }
.tech-section::before { background-image: url('../images/tech-texture.jpg'); }

/* 背景图渐入（当section有bg-loaded类时显示） */
.what-section.bg-loaded::before,
.dare-section.bg-loaded::before,
.eco-section.bg-loaded::before,
.bizmodel-section.bg-loaded::before,
.apply-section.bg-loaded::before,
.voices-section.bg-loaded::before,
.collab-section.bg-loaded::before,
.product-section.bg-loaded::before,
.tech-section.bg-loaded::before {
  opacity: 0.12;
}

/* 背景图暗色叠加层（确保文字可读性） */
.what-section::after,
.dare-section::after,
.eco-section::after,
.bizmodel-section::after,
.apply-section::after,
.voices-section::after,
.collab-section::after {
  content: ''; position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background: linear-gradient(180deg, rgba(10,10,10,0.7) 0%, rgba(10,10,10,0.85) 50%, rgba(10,10,10,0.95) 100%);
}

/* 已有背景图的section保持原有::after，不覆盖 */

/* ═══════════════════════════════════════════════════
   Section 进入动画（翻页效果）
   ═══════════════════════════════════════════════════ */
section[id] {
  position: relative;
}
section[id] > *:not(:is(.section-tag, .hero-grid, .ambient-orb, .hero-globe-deco, .hero-scroll-hint, .heartbeat-panel, .scroll-progress, .page-nav)) {
  position: relative; z-index: 1;
}

/* 翻页时的内容滑入动画 */
.section-enter {
  animation: sectionEnter 0.8s var(--ease) forwards;
}
@keyframes sectionEnter {
  from {
    opacity: 0;
    transform: translateY(30px);
    filter: blur(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

/* 背景图视差缩放效果 */
.bg-parallax {
  transition: transform 0.1s linear;
  will-change: transform;
}

/* ═══════════════════════════════════════════════════
   桌面端布局优化 · 比例修正
   ═══════════════════════════════════════════════════ */
@media (min-width: 1025px) {
  /* 首屏：左右分栏，文字左 + 面板右 */
  .hero-inner {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 60px;
    align-items: center;
    max-width: 1400px;
  }
  .hero-content {
    max-width: none;
  }
  .hero-side {
    display: flex;
    flex-direction: column;
    gap: 24px;
  }
  .hero-mockup {
    display: block !important;
    position: relative;
    z-index: 2;
  }
  .heartbeat-panel {
    position: relative;
    bottom: auto;
    right: auto;
    z-index: 3;
  }

  /* What section: 4列卡片，更大间距 */
  .what-inner {
    max-width: 1400px;
    padding: 80px 48px;
  }
  .what-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
  }
  .what-card {
    padding: 40px 32px;
    min-height: 320px;
  }

  /* Eco section: 商业帝国版图 + 4列卡片 */
  .eco-inner {
    max-width: 1400px;
    padding: 80px 48px;
  }
  .empire-map {
    margin: 60px auto;
    max-width: 1100px;
    height: 620px;
  }
  .empire-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
  }

  /* Dare section: 居中大字排版 */
  .dare-section {
    padding: 80px 0;
  }
  .dare-header {
    max-width: 900px;
    margin: 0 auto 60px;
    padding: 0 48px;
    text-align: center;
  }
  .dare-list {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 48px;
  }

  /* Numbers section: 4列大数字 */
  .numbers-section {
    padding: 100px 48px;
  }
  .numbers-grid {
    max-width: 1400px;
    margin: 0 auto;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
  }
  .num-block {
    padding: 48px 32px;
    min-height: 200px;
  }
  .num-value {
    font-size: clamp(48px, 5vw, 72px) !important;
  }

  /* Method section: 居中列表 */
  .method-inner {
    max-width: 1100px;
    padding: 80px 48px;
  }

  /* Apply section: 2x2网格 */
  .apply-inner {
    max-width: 1400px;
    padding: 80px 48px;
  }
  .apply-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
  .apply-card {
    padding: 40px 36px;
    min-height: 200px;
  }

  /* Voices section: 全宽横向滚动 */
  .voices-section {
    padding: 100px 0;
  }
  .voices-header {
    max-width: 1400px;
    margin: 0 auto 60px;
    padding: 0 48px;
  }

  /* Collab section: 居中表单 */
  .collab-inner {
    max-width: 900px;
    padding: 80px 48px;
  }

  /* Bizmodel: 更宽的容器 */
  .bizmodel-inner {
    max-width: 1400px;
    padding: 80px 48px;
  }
  .commission-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
}

/* ═══════════════════════════════════════════════════
   超宽屏优化 (≥1600px)
   ═══════════════════════════════════════════════════ */
@media (min-width: 1600px) {
  .hero-inner {
    grid-template-columns: 1fr 440px;
    max-width: 1600px;
  }
  .hero h1 {
    font-size: clamp(24px, 3.8vw, 56px);
  }
  .what-inner, .eco-inner, .apply-inner, .bizmodel-inner {
    max-width: 1600px;
  }
  .what-card {
    padding: 48px 40px;
    min-height: 360px;
  }
  .num-value {
    font-size: clamp(56px, 5.5vw, 84px) !important;
  }
}

/* ═══════════════════════════════════════════════════
   Join Icon SVG 样式
   ═══════════════════════════════════════════════════ */
.join-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: rgba(94,106,210,0.08);
  border: 1px solid rgba(94,106,210,0.15);
  margin-bottom: 24px;
  transition: all 0.4s var(--ease);
}
.join-card:hover .join-icon {
  background: rgba(94,106,210,0.15);
  border-color: rgba(94,106,210,0.3);
  transform: scale(1.05);
}

/* ═══════════════════════════════════════════════════
   交互式数字面板增强
   ═══════════════════════════════════════════════════ */
.num-block {
  cursor: pointer;
  transition: all 0.4s var(--ease);
  position: relative;
  overflow: hidden;
}
.num-block::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(94,106,210,0.08), transparent 70%);
  opacity: 0; transition: opacity 0.4s var(--ease);
  pointer-events: none;
}
.num-block:hover {
  transform: translateY(-4px);
  border-color: rgba(94,106,210,0.3) !important;
}
.num-block:hover::after {
  opacity: 1;
}
.num-block.glow {
  box-shadow: 0 0 30px rgba(94,106,210,0.15);
}

/* ═══════════════════════════════════════════════════
   侧边导航增强（分页指示器风格）
   ═══════════════════════════════════════════════════ */
@media (min-width: 1025px) {
  .side-nav {
    position: fixed;
    left: 24px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 90;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .side-nav a {
    position: relative;
    padding-left: 20px;
    font-size: 0;
    color: var(--gray);
    transition: all 0.3s var(--ease);
  }
  .side-nav a::before {
    content: ''; position: absolute; left: 0; top: 50%;
    transform: translateY(-50%);
    width: 8px; height: 2px; background: var(--gray);
    transition: all 0.3s var(--ease);
  }
  .side-nav a:hover {
    font-size: 11px;
    color: var(--white-60);
  }
  .side-nav a:hover::before {
    width: 16px; background: var(--accent);
  }
  .side-nav a.active {
    font-size: 11px;
    color: var(--white);
  }
  .side-nav a.active::before {
    width: 24px; background: var(--accent);
    box-shadow: 0 0 8px rgba(94,106,210,0.5);
  }
}

/* ═══════════════════════════════════════════════════
   Section 过渡光效
   ═══════════════════════════════════════════════════ */
section[id] {
  border-top: 1px solid rgba(255,255,255,0.03);
}
.hero { border-top: none; }

/* Vision section 背景增强 */
.vision-section {
  position: relative;
}
.vision-bg {
  position: absolute; inset: 0; z-index: 0;
  background-size: cover; background-position: center;
  opacity: 0; transition: opacity 1.5s var(--ease);
}
.vision-bg.bg-loaded {
  opacity: 0.15;
}
.vision-section::after {
  content: ''; position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(180deg, rgba(10,10,10,0.8) 0%, rgba(10,10,10,0.6) 50%, rgba(10,10,10,0.9) 100%);
}

/* ═══════════════════════════════════════════════════
   移动端：不使用scroll-snap，保持正常滚动
   ═══════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  html {
    scroll-snap-type: none;
  }
  section[id] {
    scroll-snap-align: none;
  }
  .hero-inner {
    display: block;
  }
  .hero-side {
    display: none;
  }
  .heartbeat-panel {
    position: relative;
    bottom: auto;
    right: auto;
    margin: 24px;
  }
}

/* ═══════════════════════════════════════════════════
   1.6 PRODUCT SHOWCASE · 产品展示
   ═══════════════════════════════════════════════════ */
.product-section {
  background: var(--charcoal); padding: 80px 0; position: relative;
}
.product-section::before {
  content: ''; position: absolute; inset: 0; z-index: 0;
  background-size: cover; background-position: center;
  opacity: 0; transition: opacity 1.5s var(--ease);
}
.product-section::after {
  content: ''; position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(180deg, rgba(17,17,17,0.92) 0%, rgba(17,17,17,0.96) 100%);
}
.product-inner { max-width: 1400px; margin: 0 auto; padding: 0 48px; position: relative; z-index: 1; }
.product-header { margin-bottom: 100px; }
.product-header .tag {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray);
  margin-bottom: 24px;
}
.product-header h2 {
  font-family: var(--font-display); font-size: clamp(32px, 5vw, 64px);
  font-weight: 300; color: var(--white); margin-bottom: 24px; letter-spacing: -0.01em;
}
.product-header h2 .accent { color: var(--accent); }
.product-desc { font-size: 16px; color: var(--white-60); line-height: 1.8; max-width: 700px; }

/* Showcase alternating blocks */
.showcase-block {
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px;
  align-items: center; margin-bottom: 120px;
}
.showcase-block[data-reverse="true"] .showcase-visual { order: 2; }
.showcase-block[data-reverse="true"] .showcase-text { order: 1; }
.showcase-text { padding: 0 20px; }
.showcase-num {
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray);
  margin-bottom: 20px;
}
.showcase-text h3 {
  font-family: var(--font-display); font-size: clamp(24px, 3vw, 36px);
  font-weight: 300; color: var(--white); margin-bottom: 20px; letter-spacing: -0.01em;
}
.showcase-text h3 .zh {
  display: block; font-size: 0.5em; font-weight: 400; color: var(--accent);
  letter-spacing: 0.04em; margin-top: 4px;
}
.showcase-text p {
  font-size: 15px; color: var(--white-60); line-height: 1.8; margin-bottom: 28px;
}
.showcase-features { display: flex; flex-wrap: wrap; gap: 16px; }
.sf-item {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--white-80); letter-spacing: 0.02em;
}
.sf-item svg { flex-shrink: 0; }

/* Mockup window */
.showcase-visual { display: flex; justify-content: center; }
.showcase-mockup { width: 100%; max-width: 560px; }
.mockup-window {
  background: var(--charcoal-2); border: 1px solid var(--line);
  border-radius: 12px; overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 0 1px rgba(94,106,210,0.05);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.mockup-window:hover {
  transform: translateY(-4px);
  box-shadow: 0 30px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(94,106,210,0.15);
}
.window-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; background: var(--charcoal-3); border-bottom: 1px solid var(--line);
}
.window-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.window-dot.red { background: #FF5F57; }
.window-dot.yellow { background: #FEBC2E; }
.window-dot.green { background: #28C840; }
.window-title {
  margin-left: 12px; font-size: 11px; color: var(--gray);
  letter-spacing: 0.04em; font-family: var(--font-body);
}
.window-body { padding: 24px; min-height: 320px; }

/* Dashboard mockup */
.dashboard-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
}
.dash-card {
  background: rgba(255,255,255,0.02); border: 1px solid var(--line);
  border-radius: 8px; padding: 16px;
}
.dash-card.dash-chart { grid-column: span 2; }
.dash-card.dash-alert { grid-column: span 3; }
.dash-label { font-size: 10px; color: var(--gray); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 8px; }
.dash-value { font-family: var(--font-display); font-size: 22px; font-weight: 400; color: var(--white); }
.dash-trend { font-size: 11px; margin-top: 4px; }
.dash-trend.up { color: var(--green); }
.mini-chart { display: flex; align-items: flex-end; gap: 6px; height: 60px; margin-top: 8px; }
.mini-chart .bar {
  flex: 1; height: var(--h); background: linear-gradient(180deg, var(--accent), rgba(94,106,210,0.3));
  border-radius: 3px 3px 0 0; min-height: 4px;
}
.alert-item {
  display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--white-60); margin-top: 6px;
}
.alert-dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent); flex-shrink: 0;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

/* Inventory mockup */
.inv-tabs { display: flex; gap: 0; margin-bottom: 16px; border-bottom: 1px solid var(--line); }
.inv-tab {
  padding: 8px 16px; font-size: 12px; color: var(--gray); cursor: pointer;
  border-bottom: 2px solid transparent; transition: all 0.3s var(--ease);
}
.inv-tab.active { color: var(--white); border-bottom-color: var(--accent); }
.inv-table { font-size: 12px; }
.inv-row {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 8px;
  padding: 10px 0; border-bottom: 1px solid var(--line); color: var(--white-80);
}
.inv-row.inv-head { color: var(--gray); font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; }
.inv-low { color: var(--red); font-weight: 500; }
.inv-status { font-size: 11px; padding: 2px 8px; border-radius: 4px; display: inline-block; text-align: center; }
.inv-status.ok { background: rgba(0,200,83,0.1); color: var(--green); }
.inv-status.mid { background: rgba(245,158,11,0.1); color: #F59E0B; }
.inv-status.low { background: rgba(255,82,82,0.1); color: var(--red); }
.inv-ai-suggest {
  display: flex; gap: 12px; align-items: flex-start; margin-top: 16px;
  padding: 12px; background: var(--accent-dim); border-radius: 8px; border: 1px solid rgba(94,106,210,0.2);
}
.ai-badge {
  font-size: 10px; font-weight: 600; color: var(--white); background: var(--accent);
  padding: 2px 8px; border-radius: 4px; letter-spacing: 0.08em; flex-shrink: 0;
}
.ai-text { font-size: 12px; color: var(--white-80); line-height: 1.6; }

/* CRM mockup */
.crm-view { display: grid; grid-template-columns: 140px 1fr; gap: 16px; }
.crm-sidebar { display: flex; flex-direction: column; gap: 4px; }
.crm-segment {
  font-size: 12px; color: var(--gray); padding: 8px 12px; border-radius: 6px;
  cursor: pointer; transition: all 0.3s var(--ease); display: flex; justify-content: space-between;
}
.crm-segment.active { background: rgba(94,106,210,0.1); color: var(--white); }
.crm-segment .count { font-size: 10px; color: var(--gray); }
.crm-main { display: flex; flex-direction: column; gap: 16px; }
.crm-profile { display: flex; align-items: center; gap: 12px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.crm-avatar {
  width: 40px; height: 40px; border-radius: 50%; background: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 500; color: var(--white);
}
.crm-name { font-size: 15px; color: var(--white); font-weight: 500; }
.crm-tag.vip { font-size: 9px; background: var(--accent); color: var(--white); padding: 1px 6px; border-radius: 3px; margin-left: 8px; }
.crm-stats { font-size: 11px; color: var(--gray); margin-top: 2px; }
.crm-timeline { display: flex; flex-direction: column; gap: 8px; }
.timeline-item { font-size: 12px; color: var(--white-60); padding: 6px 0; border-bottom: 1px solid var(--line); }
.timeline-item .time { color: var(--accent); margin-right: 8px; font-size: 11px; }
.crm-ai-tip {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 10px; background: var(--accent-dim); border-radius: 8px;
}

/* Collab mockup */
.collab-view { display: flex; flex-direction: column; gap: 16px; }
.collab-map {
  position: relative; height: 200px; background: rgba(255,255,255,0.02);
  border: 1px solid var(--line); border-radius: 8px; overflow: hidden;
}
.map-node {
  position: absolute; left: var(--x); top: var(--y); transform: translate(-50%,-50%);
  font-size: 10px; padding: 4px 10px; border-radius: 4px; white-space: nowrap; z-index: 2;
}
.map-node.self { background: var(--accent); color: var(--white); font-weight: 500; }
.map-node.partner { background: rgba(94,106,210,0.15); color: var(--white-80); border: 1px solid rgba(94,106,210,0.3); }
.map-lines { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; }
.collab-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
.cs-item {
  background: rgba(255,255,255,0.02); border: 1px solid var(--line);
  border-radius: 8px; padding: 12px; text-align: center;
}
.cs-num { font-family: var(--font-display); font-size: 20px; font-weight: 400; color: var(--accent); }
.cs-label { font-size: 10px; color: var(--gray); margin-top: 4px; }
.collab-flow { display: flex; flex-direction: column; gap: 6px; }
.flow-item { font-size: 12px; color: var(--white-60); padding: 6px 0; border-bottom: 1px solid var(--line); }
.flow-from { color: var(--white-80); }
.flow-to { color: var(--accent); }
.flow-count { color: var(--green); font-weight: 500; float: right; }

/* Product CTA */
.product-cta { text-align: center; margin-top: 40px; }
.product-cta-btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 16px; color: var(--white); padding: 16px 40px;
  border: 1px solid var(--accent); border-radius: 8px;
  transition: all 0.3s var(--ease); letter-spacing: 0.02em;
}
.product-cta-btn:hover {
  background: var(--accent); transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(94,106,210,0.3);
}
.product-cta-btn .arrow { transition: transform 0.3s var(--ease); }
.product-cta-btn:hover .arrow { transform: translateX(4px); }

@media (max-width: 768px) {
  .product-section { padding: 80px 0; }
  .product-inner { padding: 0 24px; }
  .showcase-block { grid-template-columns: 1fr; gap: 40px; margin-bottom: 80px; }
  .showcase-block[data-reverse="true"] .showcase-visual { order: 1; }
  .showcase-block[data-reverse="true"] .showcase-text { order: 2; }
  .showcase-text { padding: 0; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .dash-card.dash-chart, .dash-card.dash-alert { grid-column: span 1; }
  .crm-view { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════
   6.5 CORE TECHNOLOGY · 核心技术
   ═══════════════════════════════════════════════════ */
.tech-section {
  background: var(--black); padding: 48px 0; position: relative;
}
.tech-section::before {
  content: ''; position: absolute; inset: 0; z-index: 0;
  background-size: cover; background-position: center;
  opacity: 0; transition: opacity 1.5s var(--ease);
}
.tech-section::after {
  content: ''; position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(180deg, rgba(10,10,10,0.95) 0%, rgba(10,10,10,0.98) 100%);
}
.tech-inner { max-width: 1400px; margin: 0 auto; padding: 0 48px; position: relative; z-index: 1; }
.tech-header { margin-bottom: 20px; }
.tech-header .tag {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray);
  margin-bottom: 12px;
}
.tech-header h2 {
  font-family: var(--font-display); font-size: clamp(28px, 4vw, 52px);
  font-weight: 300; color: var(--white); margin-bottom: 12px; letter-spacing: -0.01em;
}
.tech-header h2 .accent { color: var(--accent); }
.tech-desc { font-size: 14px; color: var(--white-60); line-height: 1.7; max-width: 700px; }

/* Architecture diagram — horizontal 3-column */
.tech-architecture {
  margin-bottom: 24px; display: flex; flex-direction: row; gap: 16px; align-items: stretch;
}
.arch-layer {
  flex: 1; padding: 14px 18px;
  border: 1px solid var(--line); border-radius: 10px;
  background: rgba(255,255,255,0.02); transition: all 0.4s var(--ease);
}
.arch-layer:hover { border-color: var(--line-hover); background: rgba(255,255,255,0.03); }
.arch-layer-mid { border-color: rgba(94,106,210,0.2); background: var(--accent-dim); }
.arch-label {
  font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--gray);
  margin-bottom: 10px; text-align: center;
}
.arch-layer-mid .arch-label { color: var(--accent); }
.arch-modules { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.arch-mod {
  font-size: 11px; color: var(--white-80); padding: 5px 12px;
  border: 1px solid var(--line); border-radius: 6px; background: var(--charcoal-2);
  transition: all 0.3s var(--ease);
}
.arch-mod.arch-ai {
  border-color: rgba(94,106,210,0.3); color: var(--white);
  background: rgba(94,106,210,0.08);
}
.arch-mod:hover { border-color: var(--accent); transform: translateY(-2px); }
.arch-connector { display: none; }

/* Tech cards grid */
.tech-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  margin-bottom: 24px; align-items: stretch;
}
.tech-card {
  padding: 24px; border: 1px solid var(--line); margin: -1px 0 0 -1px;
  transition: all 0.4s var(--ease); position: relative;
  display: flex; flex-direction: column;
}
.tech-card:hover {
  background: rgba(255,255,255,0.02); border-color: var(--line-hover);
  transform: translateY(-2px); z-index: 2;
}
.tech-icon { margin-bottom: 14px; opacity: 0.8; }
.tech-icon svg { width: 32px; height: 32px; }
.tech-card h3 {
  font-size: 16px; font-weight: 500; letter-spacing: 0.04em;
  color: var(--white); margin-bottom: 8px;
}
.tech-card h3 .zh {
  display: block; font-size: 11px; font-weight: 400; color: var(--accent);
  letter-spacing: 0.04em; margin-top: 3px;
}
.tech-card p {
  font-size: 12px; color: var(--gray); line-height: 1.6; margin-bottom: 14px;
}
.tech-spec {
  border-top: 1px solid var(--line); padding-top: 10px;
  display: flex; flex-direction: column; gap: 6px;
  margin-top: auto;
}
.spec-row { display: flex; justify-content: space-between; font-size: 11px; }
.spec-key { color: var(--gray); letter-spacing: 0.04em; }
.spec-val { color: var(--white-80); font-family: var(--font-display); }

/* Tech stack */
.tech-stack {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
  padding: 28px; border: 1px solid var(--line); border-radius: 12px;
  background: rgba(255,255,255,0.01);
}
.stack-label {
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gray);
}
.stack-items { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.stack-item {
  font-size: 13px; color: var(--white-80); padding: 8px 20px;
  border: 1px solid var(--line); border-radius: 20px; background: var(--charcoal-2);
  font-family: var(--font-display); letter-spacing: 0.02em;
  transition: all 0.3s var(--ease);
}
.stack-item:hover { border-color: var(--accent); color: var(--white); transform: translateY(-2px); }

@media (max-width: 768px) {
  .tech-section { padding: 60px 0; }
  .tech-inner { padding: 0 24px; }
  .tech-architecture { flex-direction: column; gap: 12px; }
  .arch-connector { display: block; width: 2px; height: 16px; margin: 0 auto; background: linear-gradient(180deg, var(--line) 0%, var(--accent) 100%); }
  .tech-grid { grid-template-columns: 1fr; }
  .tech-card { padding: 24px; }
  .tech-stack { padding: 20px; }
}

/* ═══════════════════════════════════════════════════
   GLOBE DECORATION · 简洁地球仪装饰 (Canvas 2D)
   ═══════════════════════════════════════════════════ */
.globe-deco {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
}
@media (max-width: 1024px) {
  .globe-deco { width: 400px; height: 400px; opacity: 0.2; }
}
@media (max-width: 768px) {
  .globe-deco { display: none; }
}

/* ═══════════════════════════════════════════════════
   PAGE NAVIGATION · 页面导航箭头
   ═══════════════════════════════════════════════════ */
.page-nav {
  position: fixed; right: 32px; bottom: 32px; z-index: 90;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  opacity: 0; transform: translateY(20px); pointer-events: none;
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.page-nav.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.page-nav-btn {
  width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid rgba(94,106,210,0.35); background: rgba(20,20,28,0.85);
  color: rgba(255,255,255,0.9); display: flex; align-items: center; justify-content: center;
  transition: all 0.3s var(--ease); backdrop-filter: blur(12px);
  font-size: 18px; font-weight: 500;
  box-shadow: 0 0 12px rgba(94,106,210,0.1), 0 2px 8px rgba(0,0,0,0.4);
}
.page-nav-btn:hover {
  border-color: var(--accent); color: #fff; background: rgba(94,106,210,0.15);
  transform: scale(1.08);
  box-shadow: 0 0 20px rgba(94,106,210,0.3), 0 2px 12px rgba(0,0,0,0.5);
}
.page-nav-btn:disabled { opacity: 0.25; cursor: not-allowed; }
.page-nav-indicator {
  font-family: var(--font-display); font-size: 13px; color: rgba(255,255,255,0.7);
  letter-spacing: 0.1em; min-width: 28px; text-align: center; font-weight: 500;
}
@media (max-width: 768px) {
  .page-nav { right: 16px; bottom: 16px; }
  .page-nav-btn { width: 36px; height: 36px; }
}

/* ═══════════════════════════════════════════════════
   移动端响应式优化 · v86
   ═══════════════════════════════════════════════════ */

/* 中文标题防断字：避免单字孤立 */
.what-header h2,
.dare-header h2,
.eco-header h2,
.vision-inner h2,
.method-header h2,
.apply-header h2,
.voices-header h2,
.collab-header h2,
.bizmodel-header h2,
.tech-header h2,
.footer-big {
  word-break: keep-all;
  overflow-wrap: break-word;
}

/* 平板端优化（768px-1024px）：内容居中，调整间距 */
@media (min-width: 769px) and (max-width: 1024px) {
  .hero-inner,
  .what-inner,
  .eco-inner,
  .method-inner,
  .apply-inner,
  .footer-inner {
    padding: 0 32px;
  }
  .hero-content { max-width: 90%; }
  .what-grid { grid-template-columns: repeat(2, 1fr); }
  .what-header h2,
  .dare-header h2,
  .eco-header h2,
  .bizmodel-header h2,
  .tech-header h2,
  .method-header h2,
  .collab-header h2 {
    font-size: clamp(28px, 4.5vw, 48px);
  }
}

/* 移动端字号优化 */
@media (max-width: 768px) {
  .what-header h2,
  .dare-header h2,
  .eco-header h2,
  .bizmodel-header h2,
  .tech-header h2,
  .method-header h2,
  .collab-header h2 {
    font-size: clamp(24px, 6vw, 36px);
    line-height: 1.25;
  }
  .what-card h3,
  .tech-card h3 {
    font-size: 16px;
  }
  .what-card p,
  .tech-card p,
  .tech-spec {
    font-size: 13px;
    line-height: 1.65;
  }
  .hero-inner { padding: 0 24px; }
  .hero-content { max-width: 100%; }
  .hero h1 { font-size: clamp(20px, 5.5vw, 32px); white-space: normal; }
  .bizmodel-inner { padding: 0 24px; }
}