/* ============================
   郑州晟算科技有限公司 - 官网样式 v3
   暗色科技风 · 高级交互动效
   ============================ */

/* === CSS 变量 === */
:root {
  --bg-deep: #060a07;
  --bg-dark: #0a0f0b;
  --bg-card: #10180f;
  --bg-card-hover: #14201360;
  --border-subtle: rgba(200, 255, 0, 0.07);
  --border-glow: rgba(200, 255, 0, 0.3);
  --text-primary: #e8f2e9;
  --text-secondary: #8ba392;
  --text-muted: #556b5c;
  --blue: #00e676;
  --blue-glow: #4dffa6;
  --cyan: #c8ff00;
  --cyan-dark: #6b9e00;
  --purple: #ff9f1c;
  --purple-glow: #ffd166;
  --green: #00e676;
  --red: #ff3355;
  --orange: #ffb020;

  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Consolas", "Courier New", monospace;

  --shadow-glow: 0 0 30px rgba(0, 230, 118, 0.15);
  --shadow-glow-strong: 0 0 60px rgba(200, 255, 0, 0.2);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --header-height: 76px;
  --max-width: 1200px;
  --transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

/* === 基础重置 === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: var(--bg-deep);
}

body {
  font-family: var(--font-sans);
  color: var(--text-secondary);
  line-height: 1.7;
  background: var(--bg-deep);
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }

::selection { background: rgba(200, 255, 0, 0.2); color: var(--text-primary); }

/* ========================================
   自定义光标
   ======================================== */
.cursor-dot {
  position: fixed;
  top: 0; left: 0;
  width: 8px; height: 8px;
  background: var(--cyan);
  border-radius: 50%;
  pointer-events: none;
  z-index: 99999;
  transform: translate(-50%, -50%);
  transition: transform 0.08s;
  mix-blend-mode: difference;
  opacity: 0;
}
.cursor-ring {
  position: fixed;
  top: 0; left: 0;
  width: 36px; height: 36px;
  border: 1.5px solid rgba(200, 255, 0, 0.4);
  border-radius: 50%;
  pointer-events: none;
  z-index: 99998;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: width 0.3s, height 0.3s, border-color 0.3s, background 0.3s;
}
.cursor-ring.hovering {
  width: 60px; height: 60px;
  border-color: rgba(200, 255, 0, 0.8);
  background: rgba(200, 255, 0, 0.05);
}
.cursor-ring.clicking {
  width: 20px; height: 20px;
  border-color: var(--cyan);
}

/* JS激活后才隐藏系统光标 */
body.custom-cursor-active,
body.custom-cursor-active a,
body.custom-cursor-active button,
body.custom-cursor-active input,
body.custom-cursor-active textarea,
body.custom-cursor-active select,
body.custom-cursor-active .btn,
body.custom-cursor-active .menu-toggle,
body.custom-cursor-active .form-input,
body.custom-cursor-active .form-select,
body.custom-cursor-active .form-textarea,
body.custom-cursor-active .form-submit {
  cursor: none !important;
}

/* 触摸设备隐藏自定义光标 */
@media (pointer: coarse) {
  .cursor-dot, .cursor-ring { display: none !important; }
  body, a, button, input, textarea, select { cursor: auto !important; }
}

/* ========================================
   启动加载屏
   ======================================== */
.loading-screen {
  position: fixed;
  inset: 0;
  background: var(--bg-deep);
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  transition: opacity 0.6s ease, visibility 0.6s;
}
.loading-screen.hide {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.loading-terminal {
  width: 420px;
  max-width: 90vw;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 20px 80px rgba(0, 0, 0, 0.6), 0 0 40px rgba(200, 255, 0, 0.1);
}
.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border-subtle);
}
.terminal-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
}
.terminal-dot:nth-child(1) { background: var(--red); }
.terminal-dot:nth-child(2) { background: var(--orange); }
.terminal-dot:nth-child(3) { background: var(--green); }
.terminal-title {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-left: auto;
  letter-spacing: 1px;
}
.terminal-body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-secondary);
}
.terminal-line {
  display: flex;
  gap: 8px;
  opacity: 0;
  animation: fadeIn 0.3s forwards;
}
.terminal-prompt { color: var(--green); flex-shrink: 0; }
.terminal-text { color: var(--text-muted); }
.terminal-text.typing { color: var(--cyan); }
.terminal-text.ok { color: var(--green); }
.loading-logo {
  margin-bottom: 40px;
  font-size: 48px;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: 4px;
  font-family: var(--font-mono);
}
.loading-logo span { color: var(--cyan); }

/* ========================================
   滚动进度条
   ======================================== */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--cyan), var(--purple));
  z-index: 10001;
  transition: width 0.1s linear;
  box-shadow: 0 0 10px rgba(200, 255, 0, 0.3);
  pointer-events: none;
}

/* ========================================
   粒子画布
   ======================================== */
#particlesCanvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* ========================================
   通用容器
   ======================================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ========================================
   按钮
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 36px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 50px;
  transition: var(--transition);
  white-space: nowrap;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  border: none;
}
.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.35s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue), var(--cyan-dark));
  color: #fff;
  box-shadow: 0 0 30px rgba(200, 255, 0, 0.2);
}
.btn-primary:hover {
  box-shadow: 0 0 50px rgba(200, 255, 0, 0.4);
  transform: translateY(-3px);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid rgba(255, 255, 255, 0.15);
}
.btn-outline:hover {
  border-color: var(--cyan);
  background: rgba(200, 255, 0, 0.06);
  box-shadow: 0 0 30px rgba(200, 255, 0, 0.15);
  transform: translateY(-3px);
}

.btn-lg { padding: 16px 48px; font-size: 18px; }

/* 磁性按钮 */
.magnetic {
  will-change: transform;
  transition: transform 0.15s ease-out;
}

/* ========================================
   文字渐变
   ======================================== */
.text-gradient {
  background: linear-gradient(135deg, var(--blue-glow) 0%, var(--cyan) 50%, var(--purple-glow) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% 100%;
  animation: gradientFlow 4s ease-in-out infinite;
}

@keyframes gradientFlow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ========================================
   文字乱序解码效果
   ======================================== */
.scramble-text {
  display: inline-block;
  font-family: var(--font-mono);
}

/* ========================================
   故障效果 (Glitch)
   ======================================== */
.glitch {
  position: relative;
  display: inline-block;
}
.glitch::before, .glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  opacity: 0;
}
.glitch::before {
  animation: glitch-1 4s infinite;
  color: var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
}
.glitch::after {
  animation: glitch-2 4s infinite;
  color: var(--purple);
  clip-path: polygon(0 60%, 100% 60%, 100% 100%, 0 100%);
}
@keyframes glitch-1 {
  0%, 90%, 100% { opacity: 0; }
  92% { opacity: 0.8; transform: translate(-4px, -2px); }
  94% { opacity: 0.6; transform: translate(4px, 2px); }
  96% { opacity: 0.4; transform: translate(-2px, 1px); }
  98% { opacity: 0.8; transform: translate(2px, -1px); }
}
@keyframes glitch-2 {
  0%, 90%, 100% { opacity: 0; }
  92% { opacity: 0.8; transform: translate(4px, 2px); }
  94% { opacity: 0.6; transform: translate(-4px, -2px); }
  96% { opacity: 0.4; transform: translate(2px, -1px); }
  98% { opacity: 0.8; transform: translate(-2px, 1px); }
}

/* ========================================
   区块标题
   ======================================== */
.section {
  padding: 120px 0;
  position: relative;
  z-index: 1;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 80px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 24px;
  font-family: var(--font-mono);
}
.section-label::before {
  content: "//";
  color: var(--text-muted);
  font-size: 11px;
}

.section-title {
  font-size: 42px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ========================================
   导航栏
   ======================================== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-height);
  background: rgba(7, 11, 20, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  z-index: 1000;
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}
.header.scrolled {
  border-bottom-color: var(--border-subtle);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.header-inner {
  max-width: var(--max-width);
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
  position: relative;
}
.logo-icon {
  width: 42px; height: 42px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  flex-shrink: 0;
  box-shadow: 0 0 20px rgba(200, 255, 0, 0.25);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.logo-icon::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.2) 50%, transparent 60%);
  transform: translateX(-100%);
  transition: transform 0.6s;
}
.logo:hover .logo-icon::after { transform: translateX(100%); }
.logo:hover .logo-icon {
  box-shadow: 0 0 35px rgba(200, 255, 0, 0.5);
}
.logo-text {
  font-size: 20px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.5px;
}
.logo-text small {
  display: block;
  font-size: 10px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.nav { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 8px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: 50px;
  transition: var(--transition);
  position: relative;
}
.nav-link::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--blue));
  border-radius: 2px;
  transition: width 0.3s, left 0.3s;
}
.nav-link:hover::after, .nav-link.active::after {
  width: 20px;
  left: calc(50% - 10px);
}
.nav-link:hover { color: var(--text-primary); }
.nav-link.active { color: var(--cyan); }

.nav-cta {
  margin-left: 16px;
  padding: 10px 26px;
  font-size: 14px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--cyan-dark));
  color: #fff;
  border-radius: 50px;
  box-shadow: 0 0 20px rgba(200, 255, 0, 0.2);
  position: relative;
  overflow: hidden;
}
.nav-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.15) 50%, transparent 60%);
  transform: translateX(-100%);
  transition: transform 0.6s;
}
.nav-cta:hover::before { transform: translateX(100%); }
.nav-cta:hover {
  box-shadow: 0 0 35px rgba(200, 255, 0, 0.4);
  color: #fff;
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  z-index: 1001;
}
.menu-toggle span {
  width: 24px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ========================================
   Hero 区域
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  will-change: transform;
}
.hero-orb-1 {
  width: 600px; height: 600px;
  background: rgba(0, 230, 118, 0.12);
  top: -15%; right: -8%;
  animation: orbFloat 12s ease-in-out infinite;
}
.hero-orb-2 {
  width: 500px; height: 500px;
  background: rgba(255, 159, 28, 0.08);
  bottom: -20%; left: -10%;
  animation: orbFloat 15s ease-in-out infinite reverse;
}
.hero-orb-3 {
  width: 400px; height: 400px;
  background: rgba(200, 255, 0, 0.1);
  top: 40%; left: 30%;
  animation: orbFloat 10s ease-in-out infinite;
}

.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at center, black 20%, transparent 65%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at center, black 20%, transparent 65%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 24px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(200, 255, 0, 0.08);
  border: 1px solid rgba(200, 255, 0, 0.15);
  color: var(--cyan);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 22px;
  border-radius: 50px;
  margin-bottom: 36px;
  backdrop-filter: blur(10px);
  font-family: var(--font-mono);
  letter-spacing: 0.5px;
}
.hero-tag-dot {
  width: 7px; height: 7px;
  background: var(--cyan);
  border-radius: 50%;
  animation: dotPulse 1.5s ease-in-out infinite;
}

.hero-title {
  font-size: clamp(40px, 7vw, 68px);
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1.12;
  margin-bottom: 28px;
  letter-spacing: -1.5px;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 44px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 80px;
}

/* Hero 底部滚动提示 */
.scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 11px;
  font-family: var(--font-mono);
  letter-spacing: 2px;
  opacity: 0.6;
  animation: scrollPulse 2s ease-in-out infinite;
}
.scroll-hint-line {
  width: 1px; height: 32px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
}

/* ========================================
   页面通用 Hero
   ======================================== */
.page-hero {
  position: relative;
  padding: calc(var(--header-height) + 80px) 0 80px;
  text-align: center;
  overflow: hidden;
}
.page-hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}
.page-hero-orb-1 {
  width: 500px; height: 500px;
  background: rgba(0, 230, 118, 0.1);
  top: -20%; right: -10%;
}
.page-hero-orb-2 {
  width: 400px; height: 400px;
  background: rgba(255, 159, 28, 0.07);
  bottom: -20%; left: -5%;
}
.page-hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  margin: 0 auto;
  padding: 0 24px;
}
.page-hero-content h1 {
  font-size: clamp(32px, 6vw, 52px);
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 18px;
  letter-spacing: -1px;
}
.page-hero-content p {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.8;
}
.breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: center;
  margin-top: 32px;
  font-size: 14px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb .current { color: var(--text-secondary); }

/* ========================================
   卡片 - 3D 倾斜 + 鼠标追踪光效
   ======================================== */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid var(--border-subtle);
  transition: border-color 0.4s, box-shadow 0.4s;
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
  will-change: transform;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(0,230,118,0.05) 0%, rgba(200,255,0,0.03) 100%);
  opacity: 0;
  transition: opacity 0.5s;
}
.card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), var(--shadow-glow);
}
.card:hover::before { opacity: 1; }

/* 鼠标追踪光斑 */
.card-glow {
  position: absolute;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(200, 255, 0, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s;
  z-index: 0;
}
.card:hover .card-glow { opacity: 1; }

/* 卡片内容需要 z-index 高于光斑 */
.card > * { position: relative; z-index: 1; }

/* ========================================
   产品预告卡片
   ======================================== */
.teaser-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-subtle);
  padding: 52px 40px;
  text-align: center;
  transition: border-color 0.4s, box-shadow 0.4s;
  position: relative;
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform-style: preserve-3d;
  will-change: transform;
}
.teaser-card .glow-line {
  position: absolute;
  top: 0; left: 20%; right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  transition: opacity 0.5s;
}
.teaser-card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 40px rgba(200,255,0,0.1);
}
.teaser-card:hover .glow-line { opacity: 1; }

.teaser-icon {
  width: 72px; height: 72px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  font-size: 30px;
  position: relative;
  transition: transform 0.3s;
}
.teaser-card:hover .teaser-icon {
  transform: scale(1.1);
}
.teaser-icon::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 24px;
  border: 1px solid transparent;
  transition: var(--transition);
}
.teaser-card:hover .teaser-icon::after {
  inset: -8px;
  border-color: rgba(200, 255, 0, 0.1);
}

.teaser-card h3 {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.status-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  font-family: var(--font-mono);
  margin-bottom: 18px;
}
.status-dev {
  background: rgba(255, 176, 32, 0.12);
  color: var(--orange);
  border: 1px solid rgba(255, 176, 32, 0.2);
}
.status-coming {
  background: rgba(255, 159, 28, 0.12);
  color: var(--purple);
  border: 1px solid rgba(255, 159, 28, 0.2);
}
.status-vision {
  background: rgba(200, 255, 0, 0.12);
  color: var(--cyan);
  border: 1px solid rgba(200, 255, 0, 0.2);
}

.teaser-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 300px;
}

/* ========================================
   网格
   ======================================== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ========================================
   信念卡片
   ======================================== */
.belief-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 44px;
  transition: border-color 0.4s, box-shadow 0.4s;
  position: relative;
  transform-style: preserve-3d;
  will-change: transform;
}
.belief-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}
.belief-number {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 20px;
}
.belief-card h3 {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 14px;
}
.belief-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.9;
}

/* ========================================
   特性卡片
   ======================================== */
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: border-color 0.4s, box-shadow 0.4s;
  height: 100%;
  transform-style: preserve-3d;
  will-change: transform;
}
.feature-card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), var(--shadow-glow);
}
.feature-icon {
  width: 60px; height: 60px;
  margin: 0 auto 24px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  background: rgba(0, 230, 118, 0.1);
  color: var(--blue-glow);
  transition: var(--transition);
}
.feature-card:hover .feature-icon {
  box-shadow: 0 0 30px rgba(0, 230, 118, 0.2);
}
.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ========================================
   关于页面
   ======================================== */
.about-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.about-story-text h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.25;
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}
.about-story-text p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 2;
  margin-bottom: 18px;
}
.about-story-visual { position: relative; }
.about-visual-block {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 52px;
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
  will-change: transform;
}
.about-visual-block::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--cyan), var(--purple));
  animation: gradientShift 3s ease infinite;
  background-size: 200% 100%;
}
.about-visual-block .big-quote {
  font-size: 44px;
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 24px;
}
.about-visual-block .big-quote span { color: var(--cyan); }
.about-visual-block .author {
  font-size: 14px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: 1px;
}

/* 哲学区 */
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.philosophy-item {
  text-align: center;
  padding: 36px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: border-color 0.4s, box-shadow 0.4s;
  transform-style: preserve-3d;
  will-change: transform;
}
.philosophy-item:hover {
  border-color: var(--border-glow);
  box-shadow: 0 10px 40px rgba(0,0,0,0.3), var(--shadow-glow);
}
.philosophy-emoji {
  font-size: 40px;
  margin-bottom: 20px;
  display: block;
  transition: transform 0.3s;
}
.philosophy-item:hover .philosophy-emoji {
  transform: scale(1.2) rotate(10deg);
}
.philosophy-item h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.philosophy-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* 结构块 */
.structure-block {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 44px;
  background: var(--bg-card);
}
.structure-block h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.structure-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.structure-item {
  padding: 28px;
  background: rgba(255,255,255,0.02);
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid transparent;
  transition: var(--transition);
}
.structure-item:hover {
  border-color: var(--border-subtle);
  background: rgba(255,255,255,0.04);
}
.structure-item .num {
  font-size: 36px;
  font-weight: 900;
  color: var(--cyan);
  font-family: var(--font-mono);
  opacity: 0.5;
  margin-bottom: 12px;
}
.structure-item h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.structure-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ========================================
   产品页面 - 预告展示
   ======================================== */
.teaser-hero {
  display: flex;
  gap: 40px;
  align-items: stretch;
}
.teaser-main {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 52px 44px;
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
  will-change: transform;
}
.teaser-main::before {
  content: "";
  position: absolute;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(0,230,118,0.08), transparent 70%);
  border-radius: 50%;
  top: -20%; right: -10%;
}
.teaser-main .emoji {
  font-size: 48px;
  margin-bottom: 28px;
  display: block;
}
.teaser-main h3 {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
  position: relative;
}
.teaser-main h3 .status {
  display: inline-block;
  padding: 2px 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  font-family: var(--font-mono);
  background: rgba(255,176,32,0.15);
  color: var(--orange);
  border-radius: 50px;
  margin-left: 12px;
  vertical-align: middle;
}
.teaser-main p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.9;
  margin-bottom: 20px;
  position: relative;
  max-width: 460px;
}
.teaser-main .tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  position: relative;
}
.teaser-main .tag-list span {
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 50px;
  background: rgba(200,255,0,0.06);
  color: var(--cyan);
  border: 1px solid rgba(200,255,0,0.12);
  transition: var(--transition);
}
.teaser-main .tag-list span:hover {
  background: rgba(200,255,0,0.12);
  transform: translateY(-2px);
}

.teaser-side {
  width: 340px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.teaser-side-item {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: border-color 0.4s, box-shadow 0.4s;
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
  will-change: transform;
}
.teaser-side-item:hover {
  border-color: var(--border-glow);
}

.indicator {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-bottom: 16px;
}
.indicator-purple { background: var(--purple); box-shadow: 0 0 12px var(--purple); }
.indicator-cyan { background: var(--cyan); box-shadow: 0 0 12px var(--cyan); animation: dotPulse 2s ease-in-out infinite; }

.teaser-side-item h4 {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.teaser-side-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}
.teaser-side-item .eta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-top: 12px;
}

/* 产品愿景区 */
.vision-strip {
  position: relative;
  padding: 80px 0;
  overflow: hidden;
}
.vision-strip::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,230,118,0.03) 0%, rgba(255,159,28,0.03) 100%);
}
.vision-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  text-align: center;
}
.vision-item .vision-icon {
  font-size: 36px;
  margin-bottom: 18px;
  display: block;
  transition: transform 0.3s;
}
.vision-item:hover .vision-icon {
  transform: scale(1.3);
}
.vision-item h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.vision-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ========================================
   联系页面
   ======================================== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.contact-card-dark {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 48px;
  position: relative;
  overflow: hidden;
}
.contact-card-dark::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--cyan), var(--purple));
  animation: gradientShift 3s ease infinite;
  background-size: 200% 100%;
}
.contact-card-dark h3 {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.contact-card-dark > p {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 40px;
  line-height: 1.8;
}

.contact-info-row {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}
.contact-info-row:last-of-type { border-bottom: none; }
.contact-info-icon {
  flex-shrink: 0;
  width: 46px; height: 46px;
  background: rgba(200, 255, 0, 0.08);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan);
}
.contact-info-text .ci-label {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 1px;
  font-family: var(--font-mono);
  margin-bottom: 4px;
}
.contact-info-text .ci-value {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.6;
}

.contact-form-dark {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 48px;
}
.contact-form-dark h3 {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.contact-form-dark > p {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 36px;
}

.form-group { margin-bottom: 22px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}
.form-label .required { color: var(--red); }

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 14px 18px;
  font-size: 15px;
  color: var(--text-primary);
  background: var(--bg-dark);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: var(--transition);
  outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px rgba(200, 255, 0, 0.06);
  background: rgba(200, 255, 0, 0.03);
}
.form-textarea { min-height: 140px; resize: vertical; }
.form-select option { background: var(--bg-dark); color: var(--text-primary); }

.form-submit {
  width: 100%;
  padding: 16px;
  font-size: 16px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--cyan-dark));
  color: #fff;
  border-radius: var(--radius-md);
  transition: var(--transition);
  box-shadow: 0 0 30px rgba(200, 255, 0, 0.15);
  cursor: pointer;
}
.form-submit:hover {
  box-shadow: 0 0 50px rgba(200, 255, 0, 0.3);
  transform: translateY(-2px);
}

.form-success {
  display: none;
  padding: 16px 20px;
  background: rgba(0, 230, 118, 0.1);
  border: 1px solid rgba(0, 230, 118, 0.2);
  border-radius: var(--radius-md);
  color: var(--green);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
}
.form-success.show { display: block; animation: fadeIn 0.5s ease; }

/* ========================================
   CTA 区域
   ======================================== */
.cta-section {
  position: relative;
  padding: 100px 0;
  text-align: center;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,230,118,0.04) 0%, rgba(255,159,28,0.04) 100%);
}
.cta-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  will-change: transform;
}
.cta-orb-1 {
  width: 500px; height: 500px;
  background: rgba(0, 230, 118, 0.08);
  top: -40%; right: -10%;
}
.cta-orb-2 {
  width: 400px; height: 400px;
  background: rgba(255, 159, 28, 0.06);
  bottom: -30%; left: -10%;
}
.cta-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
  margin: 0 auto;
  padding: 0 24px;
}
.cta-content h2 {
  font-size: 38px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.cta-content p {
  font-size: 17px;
  color: var(--text-muted);
  margin-bottom: 40px;
  line-height: 1.8;
}

/* ========================================
   页脚
   ======================================== */
.footer {
  position: relative;
  background: var(--bg-dark);
  border-top: 1px solid var(--border-subtle);
  padding: 72px 0 0;
  z-index: 1;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 56px;
}
.footer-brand .logo { color: var(--text-primary); margin-bottom: 20px; }
.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 300px;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
  letter-spacing: 1px;
  font-family: var(--font-mono);
}
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a {
  font-size: 14px;
  color: var(--text-muted);
  position: relative;
  display: inline-block;
}
.footer-col ul li a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--cyan);
  transition: width 0.3s;
}
.footer-col ul li a:hover::after { width: 100%; }
.footer-col ul li a:hover { color: var(--cyan); }

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 14px;
}
.footer-contact .contact-icon { flex-shrink: 0; margin-top: 2px; color: var(--cyan); }

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--cyan); }

/* ========================================
   地图区
   ======================================== */
.map-section { padding-top: 0 !important; }
.map-wrapper {
  height: 400px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  position: relative;
}

/* ========================================
   动画
   ======================================== */
@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

@keyframes dotPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.8); }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: translateX(-50%) translateY(0); }
  50% { opacity: 0.8; transform: translateX(-50%) translateY(6px); }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in-up {
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
}
.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }
.delay-4 { animation-delay: 0.6s; }

/* 滚动显现 */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 打字机效果 */
.typewriter-text { display: inline-block; }
.typewriter-cursor {
  display: inline-block;
  animation: blink 1s step-end infinite;
  color: var(--cyan);
  font-weight: 300;
}
@keyframes blink { 50% { opacity: 0; } }

/* ========================================
   响应式
   ======================================== */
@media (max-width: 1024px) {
  .about-story { grid-template-columns: 1fr; gap: 48px; }
  .teaser-hero { flex-direction: column; }
  .teaser-side { width: 100%; flex-direction: row; }
  .teaser-side-item { flex: 1; }
}

@media (max-width: 968px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .philosophy-grid { grid-template-columns: repeat(2, 1fr); }
  .structure-grid { grid-template-columns: repeat(2, 1fr); }
  .vision-list { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0; right: 0;
    background: rgba(7, 11, 20, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    padding: 24px;
    gap: 6px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-subtle);
  }
  .nav.active { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-link { padding: 14px 18px; border-radius: var(--radius-md); }
  .nav-cta { margin-left: 0; margin-top: 8px; text-align: center; }
  .menu-toggle { display: flex; }

  .hero-title { font-size: clamp(32px, 8vw, 44px); }
  .section-title { font-size: 28px; }
  .section { padding: 80px 0; }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .philosophy-grid { grid-template-columns: 1fr; }
  .structure-grid { grid-template-columns: 1fr; }
  .vision-list { grid-template-columns: 1fr; }
  .teaser-side { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

  .page-hero-content h1 { font-size: 32px; }
  .about-visual-block { padding: 36px; }
  .about-visual-block .big-quote { font-size: 32px; }
  .cta-content h2 { font-size: 28px; }

  .contact-card-dark, .contact-form-dark { padding: 32px; }
  .form-row { grid-template-columns: 1fr; }
  .teaser-main { padding: 36px 28px; }
  .teaser-main h3 { font-size: 26px; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 280px; }
  .container { padding: 0 16px; }
}

/* ========================================
   V4 叙事组件 - "软件正在失控"
   ======================================== */

/* --- CRT 扫描线覆盖层 --- */
.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9990;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(0, 0, 0, 0.08) 3px,
    rgba(0, 0, 0, 0.08) 4px
  );
  opacity: 0.4;
}

/* --- 终端日志装饰 --- */
.terminal-deco {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 2;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}
.terminal-deco .log-error { color: var(--red); }
.terminal-deco .log-warn { color: var(--orange); }
.terminal-deco .log-ok { color: var(--green); }
.terminal-deco .log-info { color: var(--cyan); }
.terminal-deco .log-time { color: var(--text-muted); opacity: 0.5; }

/* --- 系统警报框 --- */
.system-alert {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 24px;
  background: rgba(255, 51, 85, 0.08);
  border: 1px solid rgba(255, 51, 85, 0.25);
  border-radius: var(--radius-sm);
  color: var(--red);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  animation: alertBlink 2.5s ease-in-out infinite;
}
.system-alert .alert-icon {
  width: 8px; height: 8px;
  background: var(--red);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--red);
  animation: dotPulse 1s ease-in-out infinite;
}
@keyframes alertBlink {
  0%, 100% { box-shadow: 0 0 0 rgba(255, 51, 85, 0); }
  50% { box-shadow: 0 0 25px rgba(255, 51, 85, 0.2); }
}

/* --- 编译/调试进度条 --- */
.build-progress {
  position: relative;
  margin: 24px 0;
}
.build-progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 1px;
}
.build-progress-header .bp-label { color: var(--text-muted); }
.build-progress-header .bp-value { color: var(--cyan); font-weight: 700; }
.build-progress-track {
  height: 8px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border-subtle);
}
.build-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  border-radius: 4px;
  position: relative;
  transition: width 1.5s cubic-bezier(0.22, 1, 0.36, 1);
  box-shadow: 0 0 15px rgba(200, 255, 0, 0.4);
}
.build-progress-fill::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: progressShine 1.8s linear infinite;
}
@keyframes progressShine {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}
.build-progress-log {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  opacity: 0.7;
}

/* --- 章节编号 --- */
.chapter-marker {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 40px;
}
.chapter-marker .chapter-num {
  font-family: var(--font-mono);
  font-size: 72px;
  font-weight: 900;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(200, 255, 0, 0.3);
  line-height: 1;
}
.chapter-marker .chapter-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(200, 255, 0, 0.3), transparent);
}
.chapter-marker .chapter-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 2px;
  white-space: nowrap;
}

/* --- 失控证据卡片 --- */
.chaos-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 51, 85, 0.15);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  height: 100%;
}
.chaos-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--red), transparent);
  opacity: 0.5;
}
.chaos-card:hover {
  border-color: rgba(255, 51, 85, 0.35);
  box-shadow: 0 0 40px rgba(255, 51, 85, 0.08);
  transform: translateY(-4px);
}
.chaos-card .chaos-num {
  font-family: var(--font-mono);
  font-size: 52px;
  font-weight: 900;
  color: var(--red);
  line-height: 1;
  margin-bottom: 14px;
  text-shadow: 0 0 30px rgba(255, 51, 85, 0.3);
}
.chaos-card .chaos-unit {
  font-size: 20px;
  color: var(--red);
  opacity: 0.7;
}
.chaos-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.chaos-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* --- 宣言文本 --- */
.manifesto {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.6;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}
.manifesto .strike {
  color: var(--text-muted);
  text-decoration: line-through;
  text-decoration-color: var(--red);
  text-decoration-thickness: 3px;
}
.manifesto .highlight {
  color: var(--cyan);
  text-shadow: 0 0 30px rgba(200, 255, 0, 0.4);
}

/* --- 状态点 --- */
.sys-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 1.5px;
  font-weight: 700;
}
.sys-status::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
}
.sys-status.debug::before { background: var(--orange); box-shadow: 0 0 10px var(--orange); animation: dotPulse 1.2s infinite; }
.sys-status.debug { color: var(--orange); }
.sys-status.compile::before { background: var(--purple); box-shadow: 0 0 10px var(--purple); animation: dotPulse 1.5s infinite; }
.sys-status.compile { color: var(--purple); }
.sys-status.queue::before { background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }
.sys-status.queue { color: var(--cyan); }
.sys-status.online::before { background: var(--green); box-shadow: 0 0 10px var(--green); animation: dotPulse 2s infinite; }
.sys-status.online { color: var(--green); }

/* --- 坐标/数据装饰 --- */
.geo-deco {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  opacity: 0.5;
  user-select: none;
}

/* --- 竖排文字 --- */
.vertical-text {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  letter-spacing: 8px;
  font-size: 14px;
  color: var(--text-muted);
  opacity: 0.4;
  user-select: none;
  position: absolute;
}

/* --- 大括号装饰 --- */
.bracket-deco {
  position: relative;
  padding: 0 40px;
}
.bracket-deco::before,
.bracket-deco::after {
  font-family: var(--font-mono);
  font-size: 80px;
  font-weight: 300;
  color: rgba(200, 255, 0, 0.2);
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  line-height: 1;
}
.bracket-deco::before { content: "{"; left: 0; }
.bracket-deco::after { content: "}"; right: 0; }

/* --- 响应式补充 --- */
@media (max-width: 768px) {
  .chapter-marker .chapter-num { font-size: 48px; }
  .bracket-deco { padding: 0 20px; }
  .bracket-deco::before, .bracket-deco::after { font-size: 48px; }
  .vertical-text { display: none; }
  .chaos-card .chaos-num { font-size: 40px; }
}

/* ========================================
   V5 KPR风格滚动场景系统
   ======================================== */

/* --- 滚动场景容器 --- */
.scroll-scene {
  position: relative;
}
.scene-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* --- 场景文本行(滚动驱动逐行揭示) --- */
.scene-line {
  position: absolute;
  max-width: 860px;
  padding: 0 32px;
  text-align: center;
  opacity: 0;
  transform: translateY(70px) scale(0.96);
  transition: opacity 0.7s cubic-bezier(0.22,1,0.36,1), transform 0.7s cubic-bezier(0.22,1,0.36,1);
  pointer-events: none;
}
.scene-line.active {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.scene-line.exit {
  opacity: 0;
  transform: translateY(-70px) scale(0.96);
}
.scene-line .line-big {
  font-size: clamp(30px, 5.5vw, 52px);
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1.35;
  letter-spacing: -0.5px;
}
.scene-line .line-big .accent { color: var(--cyan); text-shadow: 0 0 40px rgba(200,255,0,0.4); }
.scene-line .line-big .danger { color: var(--red); text-shadow: 0 0 40px rgba(255,51,85,0.4); }
.scene-line .line-sub {
  margin-top: 24px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-muted);
  letter-spacing: 2px;
}

/* --- 场景进度装饰(四角) --- */
.scene-corner {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  z-index: 5;
  user-select: none;
}
.scene-corner.tl { top: 100px; left: 40px; }
.scene-corner.tr { top: 100px; right: 40px; text-align: right; }
.scene-corner.bl { bottom: 40px; left: 40px; }
.scene-corner.br { bottom: 40px; right: 40px; text-align: right; }
.scene-corner .big-pct {
  font-size: 48px;
  font-weight: 900;
  color: rgba(200, 255, 0, 0.5);
  line-height: 1;
  display: block;
  margin-top: 4px;
}

/* --- 场景边框角标 --- */
.scene-frame {
  position: absolute;
  inset: 90px 30px 30px;
  pointer-events: none;
  z-index: 4;
}
.scene-frame::before,
.scene-frame::after {
  content: "";
  position: absolute;
  width: 24px;
  height: 24px;
  border: 1.5px solid rgba(200, 255, 0, 0.25);
}
.scene-frame::before {
  top: 0; left: 0;
  border-right: none;
  border-bottom: none;
}
.scene-frame::after {
  bottom: 0; right: 0;
  border-left: none;
  border-top: none;
}
.scene-frame .frame-corner-b,
.scene-frame .frame-corner-c {
  position: absolute;
  width: 24px;
  height: 24px;
  border: 1.5px solid rgba(200, 255, 0, 0.25);
}
.scene-frame .frame-corner-b {
  top: 0; right: 0;
  border-left: none;
  border-bottom: none;
}
.scene-frame .frame-corner-c {
  bottom: 0; left: 0;
  border-right: none;
  border-top: none;
}

/* --- 加密内容块 --- */
.encrypted-block {
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed rgba(200, 255, 0, 0.2);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  position: relative;
  overflow: hidden;
}
.encrypted-block::after {
  content: "ENCRYPTED";
  position: absolute;
  top: 10px;
  right: 12px;
  font-size: 10px;
  color: var(--orange);
  letter-spacing: 2px;
  font-weight: 700;
  opacity: 0.8;
}
.encrypted-line {
  font-size: 13px;
  color: var(--cyan);
  opacity: 0.7;
  letter-spacing: 1px;
  word-break: break-all;
  line-height: 2;
}

/* --- 涂抹红action条 --- */
.redacted {
  background: rgba(85, 96, 120, 0.35);
  color: transparent !important;
  user-select: none;
  border-radius: 3px;
  padding: 0 6px;
  position: relative;
}
.redacted::selection { background: rgba(85, 96, 120, 0.35); }

/* --- 保密印章 --- */
.classified-stamp {
  display: inline-block;
  padding: 6px 18px;
  border: 2px solid var(--red);
  color: var(--red);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 4px;
  transform: rotate(-3deg);
  opacity: 0.85;
  text-shadow: 0 0 20px rgba(255, 51, 85, 0.3);
  box-shadow: 0 0 20px rgba(255, 51, 85, 0.1), inset 0 0 20px rgba(255, 51, 85, 0.05);
}

/* --- 文件列表装饰 --- */
.file-list {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 2.2;
  color: var(--text-muted);
}
.file-list .file-item {
  display: flex;
  gap: 12px;
  align-items: baseline;
}
.file-list .file-icon { color: var(--cyan); opacity: 0.6; }
.file-list .file-name { color: var(--text-secondary); }
.file-list .file-size { margin-left: auto; opacity: 0.5; }
.file-list .file-locked { color: var(--orange); }

/* --- 滚动驱动大字背景 --- */
.bg-giant-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: clamp(120px, 25vw, 320px);
  font-weight: 900;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.04);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  letter-spacing: 10px;
}

/* --- 数据传输线动画 --- */
.data-stream {
  position: absolute;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--cyan), transparent);
  opacity: 0.3;
  animation: streamFall 3s linear infinite;
  pointer-events: none;
}
@keyframes streamFall {
  0% { transform: translateY(-100%); opacity: 0; }
  20% { opacity: 0.4; }
  80% { opacity: 0.4; }
  100% { transform: translateY(100vh); opacity: 0; }
}

/* --- 滚动场景响应式 --- */
@media (max-width: 768px) {
  .scene-corner.tl, .scene-corner.tr { top: 86px; }
  .scene-corner.tl { left: 20px; }
  .scene-corner.tr { right: 20px; }
  .scene-corner.bl { left: 20px; bottom: 24px; }
  .scene-corner.br { right: 20px; bottom: 24px; }
  .scene-corner .big-pct { font-size: 32px; }
  .scene-frame { inset: 76px 16px 16px; }
  .bg-giant-text { letter-spacing: 4px; }
  .classified-stamp { letter-spacing: 2px; font-size: 11px; }
}