/* ============================================
   赛博朋克未来都市情报站 - 全局样式表
   全息投影网格布局 (Holographic Projection Grid Layout)
   ============================================ */

/* --- 导入字体 --- */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Share+Tech+Mono&display=swap');

/* --- CSS变量 --- */
:root {
  --cyber-purple: #9d00ff;
  --dark-black: #000000;
  --neon-cyan: #00f6ff;
  --warning-yellow: #ffd300;
  --danger-red: #ff0040;
  --card-bg: rgba(13, 2, 33, 0.85);
  --card-border: rgba(157, 0, 255, 0.3);
  --glow-purple: 0 0 10px rgba(157, 0, 255, 0.5), 0 0 20px rgba(157, 0, 255, 0.3);
  --glow-cyan: 0 0 10px rgba(0, 246, 255, 0.5), 0 0 20px rgba(0, 246, 255, 0.3);
  --font-heading: 'Orbitron', sans-serif;
  --font-body: 'Share Tech Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--dark-black);
  color: #c0c0c0;
  line-height: 1.8;
  overflow-x: hidden;
  position: relative;
}

/* --- 数据流背景 --- */
#matrix-code-stream {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.08;
  pointer-events: none;
}

/* --- 干扰标签区块（肉眼不可见） --- */
.jammer-block {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
  padding: 0;
  margin: -1px;
}

/* --- 导航栏（非sticky） --- */
#cyber-nav {
  position: relative;
  width: 100%;
  background: linear-gradient(180deg, rgba(0,0,0,0.95) 0%, rgba(13,2,33,0.9) 100%);
  border-bottom: 1px solid var(--cyber-purple);
  box-shadow: 0 2px 20px rgba(157, 0, 255, 0.2);
  z-index: 100;
  padding: 0;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.nav-logo img {
  height: 40px;
  width: auto;
}

.nav-logo-text {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--neon-cyan);
  text-shadow: var(--glow-cyan);
  letter-spacing: 2px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0;
  flex-wrap: wrap;
}

.nav-links li a {
  display: block;
  padding: 10px 16px;
  color: #c0c0c0;
  text-decoration: none;
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 1px;
  transition: all 0.3s ease;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.nav-links li a:hover,
.nav-links li a.active {
  color: var(--neon-cyan);
  text-shadow: var(--glow-cyan);
  border-bottom-color: var(--neon-cyan);
}

/* 汉堡菜单 */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
  padding: 5px;
}

.hamburger span {
  width: 28px;
  height: 2px;
  background: var(--neon-cyan);
  transition: all 0.3s ease;
  box-shadow: var(--glow-cyan);
}

/* --- 通用容器 --- */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

/* --- 全息卡片 --- */
.holo-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 4px;
  padding: 30px;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
  transition: all 0.4s ease;
}

.holo-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
  animation: scanline 3s linear infinite;
}

.holo-card:hover {
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
}

@keyframes scanline {
  0% { opacity: 0; }
  50% { opacity: 1; }
  100% { opacity: 0; }
}

/* --- 区块标题 --- */
.section-title {
  text-align: center;
  margin-bottom: 40px;
  padding-top: 20px;
}

.section-title h2 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--neon-cyan);
  text-shadow: var(--glow-cyan);
  letter-spacing: 3px;
  margin-bottom: 10px;
}

.section-title h2 span {
  color: var(--cyber-purple);
  text-shadow: var(--glow-purple);
}

.section-title p {
  color: #888;
  font-size: 0.9rem;
  max-width: 700px;
  margin: 0 auto;
}

/* --- 模块1：Hero视频区 --- */
#hero-matrix {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 500px;
  max-height: 900px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-bg-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.4);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(13,2,33,0.6) 50%, rgba(0,0,0,0.9) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 20px;
}

.hero-content h1 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  color: var(--neon-cyan);
  text-shadow: var(--glow-cyan), 0 0 40px rgba(0, 246, 255, 0.2);
  margin-bottom: 20px;
  letter-spacing: 4px;
  animation: neonFlicker 4s infinite;
}

.hero-slogan {
  font-size: 1.1rem;
  color: #aaa;
  margin-bottom: 30px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-btn {
  display: inline-block;
  padding: 14px 40px;
  background: transparent;
  border: 2px solid var(--neon-cyan);
  color: var(--neon-cyan);
  font-family: var(--font-heading);
  font-size: 1rem;
  text-decoration: none;
  letter-spacing: 2px;
  transition: all 0.4s ease;
  text-shadow: var(--glow-cyan);
  box-shadow: var(--glow-cyan);
}

.cta-btn:hover {
  background: var(--neon-cyan);
  color: var(--dark-black);
  text-shadow: none;
  box-shadow: 0 0 30px rgba(0, 246, 255, 0.6);
}

/* 霓虹灯闪烁动画 */
@keyframes neonFlicker {
  0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% {
    text-shadow: var(--glow-cyan), 0 0 40px rgba(0, 246, 255, 0.2);
    opacity: 1;
  }
  20%, 24%, 55% {
    text-shadow: none;
    opacity: 0.8;
  }
}

/* --- 模块2：组织宣言 --- */
#org-manifesto {
  padding: 80px 0;
}

.manifesto-terminal {
  background: rgba(0, 10, 0, 0.9);
  border: 1px solid #00ff00;
  border-radius: 4px;
  padding: 40px;
  position: relative;
  overflow: hidden;
  font-family: var(--font-body);
  color: #00ff00;
  max-width: 1000px;
  margin: 0 auto;
}

.manifesto-terminal::before {
  content: '> TRANSMISSION_ACTIVE //';
  display: block;
  color: var(--warning-yellow);
  margin-bottom: 20px;
  font-size: 0.8rem;
  animation: blink 1s step-end infinite;
}

.manifesto-terminal h3 {
  font-family: var(--font-heading);
  color: var(--neon-cyan);
  font-size: 1.3rem;
  margin-bottom: 20px;
  text-shadow: var(--glow-cyan);
}

.manifesto-terminal h4 {
  color: var(--cyber-purple);
  font-size: 1rem;
  margin: 20px 0 10px;
  font-family: var(--font-heading);
}

.manifesto-terminal p {
  margin-bottom: 15px;
  line-height: 1.9;
  font-size: 0.9rem;
}

.manifesto-terminal .warning-text {
  color: var(--warning-yellow);
  border-left: 3px solid var(--warning-yellow);
  padding-left: 15px;
  margin-top: 20px;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* --- 模块3：全息跑狗图 --- */
#hologram-dog-intel {
  padding: 80px 0;
  background: linear-gradient(180deg, transparent 0%, rgba(13, 2, 33, 0.3) 50%, transparent 100%);
}

.hologram-display {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  align-items: center;
}

.hologram-img-wrapper {
  position: relative;
  border: 1px solid var(--cyber-purple);
  border-radius: 4px;
  overflow: hidden;
  cursor: grab;
}

.hologram-img-wrapper img {
  width: 100%;
  height: auto;
  display: block;
  filter: hue-rotate(0deg);
  transition: filter 0.5s ease;
}

.hologram-img-wrapper:hover img {
  filter: hue-rotate(30deg) brightness(1.1);
}

.hologram-img-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 246, 255, 0.03) 2px,
    rgba(0, 246, 255, 0.03) 4px
  );
  pointer-events: none;
}

.hologram-data {
  padding: 20px;
}

.hologram-data .data-stream {
  background: rgba(0, 0, 0, 0.8);
  border: 1px solid var(--neon-cyan);
  padding: 20px;
  border-radius: 4px;
  font-size: 0.8rem;
  color: var(--neon-cyan);
  overflow: hidden;
  max-height: 300px;
  line-height: 1.6;
}

.decrypt-btn {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 30px;
  background: transparent;
  border: 1px solid var(--cyber-purple);
  color: var(--cyber-purple);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: 1px;
}

.decrypt-btn:hover {
  background: var(--cyber-purple);
  color: #fff;
  box-shadow: var(--glow-purple);
}

/* --- 模块4：黑市评价 --- */
#black-market-reviews {
  padding: 80px 0;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.review-terminal {
  background: rgba(0, 10, 0, 0.7);
  border: 1px solid rgba(0, 255, 0, 0.3);
  padding: 25px;
  border-radius: 4px;
  position: relative;
  animation: terminalGlitch 8s infinite;
}

.review-terminal::before {
  content: '> ANONYMOUS_TRANSMISSION';
  display: block;
  color: #555;
  font-size: 0.7rem;
  margin-bottom: 15px;
}

.review-id {
  color: var(--warning-yellow);
  font-size: 0.8rem;
  margin-bottom: 10px;
}

.review-text {
  color: #00ff00;
  font-size: 0.85rem;
  line-height: 1.7;
}

.review-meta {
  margin-top: 15px;
  color: #444;
  font-size: 0.7rem;
}

@keyframes terminalGlitch {
  0%, 95%, 100% { transform: translate(0); }
  96% { transform: translate(-2px, 1px); }
  97% { transform: translate(2px, -1px); }
  98% { transform: translate(-1px, -1px); }
  99% { transform: translate(1px, 1px); }
}

/* --- 模块5：义体改造蓝图 --- */
#prosthetic-blueprints {
  padding: 80px 0;
  background: linear-gradient(180deg, transparent 0%, rgba(13, 2, 33, 0.2) 50%, transparent 100%);
}

.blueprints-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.blueprint-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 20px;
  border-radius: 4px;
  text-align: center;
  transition: all 0.4s ease;
  cursor: pointer;
}

.blueprint-card:hover {
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
  transform: translateY(-5px);
}

.blueprint-card .zodiac-icon {
  font-size: 2rem;
  margin-bottom: 10px;
  display: block;
  color: var(--cyber-purple);
  text-shadow: var(--glow-purple);
}

.blueprint-card h4 {
  font-family: var(--font-heading);
  color: var(--neon-cyan);
  font-size: 0.75rem;
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.blueprint-card p {
  font-size: 0.75rem;
  color: #888;
  line-height: 1.5;
}

.blueprint-card .compat {
  margin-top: 10px;
  font-size: 0.7rem;
  color: var(--warning-yellow);
}

/* --- 模块6：未来档案 --- */
#future-archives {
  padding: 80px 0;
}

.archives-list {
  max-width: 900px;
  margin: 0 auto;
}

.archive-item {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 20px;
  align-items: center;
  padding: 18px 20px;
  border-bottom: 1px solid rgba(157, 0, 255, 0.15);
  transition: all 0.3s ease;
  text-decoration: none;
  color: inherit;
}

.archive-item:hover {
  background: rgba(157, 0, 255, 0.05);
  border-bottom-color: var(--cyber-purple);
}

.archive-item .file-name {
  color: var(--neon-cyan);
  font-size: 0.9rem;
}

.archive-item .file-size,
.archive-item .file-encrypt,
.archive-item .file-date {
  color: #666;
  font-size: 0.75rem;
  white-space: nowrap;
}

.archive-item .file-encrypt {
  color: var(--danger-red);
}

/* --- 模块7：神经接入注册 --- */
#neural-registration {
  padding: 80px 0;
  background: linear-gradient(180deg, transparent 0%, rgba(13, 2, 33, 0.3) 50%, transparent 100%);
}

.registration-panel {
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

.reg-form {
  background: var(--card-bg);
  border: 1px solid var(--cyber-purple);
  padding: 40px;
  border-radius: 4px;
}

.reg-form .input-group {
  margin-bottom: 20px;
}

.reg-form label {
  display: block;
  color: var(--neon-cyan);
  font-size: 0.8rem;
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.reg-form input {
  width: 100%;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.8);
  border: 1px solid var(--card-border);
  color: var(--neon-cyan);
  font-family: var(--font-body);
  font-size: 0.9rem;
  border-radius: 2px;
  outline: none;
  transition: border-color 0.3s ease;
}

.reg-form input:focus {
  border-color: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
}

.reg-submit {
  width: 100%;
  padding: 14px;
  background: transparent;
  border: 2px solid var(--neon-cyan);
  color: var(--neon-cyan);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  cursor: pointer;
  letter-spacing: 2px;
  transition: all 0.4s ease;
  margin-top: 10px;
}

.reg-submit:hover {
  background: var(--neon-cyan);
  color: var(--dark-black);
}

.reg-bonus {
  text-align: center;
  margin-top: 20px;
  color: var(--warning-yellow);
  font-size: 0.8rem;
}

/* --- 模块8：负责任博彩 --- */
#responsible-warning {
  padding: 80px 0;
}

.warning-panel {
  max-width: 900px;
  margin: 0 auto;
  background: rgba(40, 0, 0, 0.8);
  border: 2px solid var(--danger-red);
  padding: 40px;
  border-radius: 4px;
  position: relative;
  animation: warningPulse 3s infinite;
}

.warning-panel .age-badge {
  display: inline-block;
  background: var(--danger-red);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  padding: 8px 16px;
  border-radius: 4px;
  margin-bottom: 20px;
}

.warning-panel h3 {
  font-family: var(--font-heading);
  color: var(--danger-red);
  font-size: 1.2rem;
  margin-bottom: 20px;
}

.warning-panel ul {
  list-style: none;
  padding: 0;
}

.warning-panel ul li {
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 0, 64, 0.2);
  font-size: 0.85rem;
  color: #ccc;
}

.warning-panel ul li::before {
  content: '> ';
  color: var(--danger-red);
}

.warning-panel a {
  color: var(--warning-yellow);
  text-decoration: none;
}

.warning-panel a:hover {
  text-decoration: underline;
}

@keyframes warningPulse {
  0%, 100% { border-color: var(--danger-red); }
  50% { border-color: rgba(255, 0, 64, 0.4); }
}

/* --- 模块9：牌照展示 --- */
#license-display {
  padding: 80px 0;
  background: linear-gradient(180deg, transparent 0%, rgba(13, 2, 33, 0.2) 50%, transparent 100%);
}

.license-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
}

.license-badge {
  text-align: center;
}

.license-badge img {
  max-width: 300px;
  width: 100%;
  height: auto;
  animation: floatBadge 4s ease-in-out infinite;
  filter: drop-shadow(0 0 20px rgba(157, 0, 255, 0.4));
}

@keyframes floatBadge {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.license-info h3 {
  font-family: var(--font-heading);
  color: var(--neon-cyan);
  font-size: 1.1rem;
  margin-bottom: 15px;
}

.license-info .license-number {
  color: var(--warning-yellow);
  font-size: 0.9rem;
  margin-bottom: 15px;
}

.license-info p {
  font-size: 0.85rem;
  line-height: 1.8;
  color: #999;
}

/* --- 模块10：FAQ --- */
#faq-exchange {
  padding: 80px 0;
}

.faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--card-border);
  margin-bottom: 10px;
  border-radius: 4px;
  overflow: hidden;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  background: var(--card-bg);
  cursor: pointer;
  transition: all 0.3s ease;
}

.faq-question:hover {
  background: rgba(157, 0, 255, 0.1);
}

.faq-question h4 {
  font-family: var(--font-body);
  color: var(--neon-cyan);
  font-size: 0.9rem;
  font-weight: normal;
}

.faq-question .bounty {
  color: var(--warning-yellow);
  font-size: 0.75rem;
  white-space: nowrap;
  margin-left: 15px;
}

.faq-answer {
  display: none;
  padding: 20px;
  background: rgba(0, 0, 0, 0.6);
  color: #aaa;
  font-size: 0.85rem;
  line-height: 1.8;
  border-top: 1px solid var(--card-border);
}

.faq-answer.active {
  display: block;
}

/* --- 页脚 --- */
#cyber-footer {
  background: linear-gradient(180deg, rgba(13, 2, 33, 0.5) 0%, rgba(0, 0, 0, 0.98) 100%);
  border-top: 1px solid var(--cyber-purple);
  padding: 60px 0 30px;
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}

.footer-col h4 {
  font-family: var(--font-heading);
  color: var(--neon-cyan);
  font-size: 0.8rem;
  margin-bottom: 15px;
  letter-spacing: 1px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  color: #777;
  text-decoration: none;
  font-size: 0.8rem;
  transition: color 0.3s ease;
}

.footer-col ul li a:hover {
  color: var(--neon-cyan);
}

.footer-social {
  display: flex;
  gap: 15px;
  margin-top: 10px;
}

.footer-social a {
  color: #777;
  font-size: 0.85rem;
  text-decoration: none;
  transition: color 0.3s ease;
  border: 1px solid #333;
  padding: 5px 10px;
  border-radius: 2px;
}

.footer-social a:hover {
  color: var(--neon-cyan);
  border-color: var(--neon-cyan);
}

.footer-bottom {
  border-top: 1px solid rgba(157, 0, 255, 0.15);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.footer-bottom p {
  color: #555;
  font-size: 0.75rem;
}

.payment-icons {
  display: flex;
  gap: 10px;
  align-items: center;
}

.payment-icons span {
  color: #666;
  font-size: 0.7rem;
  border: 1px solid #333;
  padding: 3px 8px;
  border-radius: 2px;
}

.footer-age-badge {
  display: inline-block;
  background: var(--danger-red);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  padding: 4px 10px;
  border-radius: 3px;
}

/* --- 面包屑导航 --- */
.breadcrumb {
  padding: 15px 0;
  font-size: 0.8rem;
}

.breadcrumb a {
  color: var(--cyber-purple);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--neon-cyan);
}

.breadcrumb span {
  color: #555;
  margin: 0 8px;
}

.breadcrumb .current {
  color: #999;
}

/* --- 内页通用样式 --- */
.inner-page-hero {
  padding: 60px 0 40px;
  text-align: center;
  background: linear-gradient(180deg, rgba(13, 2, 33, 0.5) 0%, transparent 100%);
}

.inner-page-hero h1 {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--neon-cyan);
  text-shadow: var(--glow-cyan);
  margin-bottom: 15px;
}

.inner-page-hero p {
  color: #888;
  max-width: 700px;
  margin: 0 auto;
  font-size: 0.9rem;
}

.inner-content {
  padding: 40px 0 80px;
}

.inner-content .content-block {
  max-width: 1000px;
  margin: 0 auto;
}

.inner-content h2,
.inner-content h3 {
  font-family: var(--font-heading);
  color: var(--neon-cyan);
  margin: 30px 0 15px;
}

.inner-content h2 {
  font-size: 1.4rem;
}

.inner-content h3 {
  font-size: 1.1rem;
  color: var(--cyber-purple);
}

.inner-content p {
  margin-bottom: 15px;
  font-size: 0.9rem;
  line-height: 1.9;
}

.inner-content img {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--card-border);
  border-radius: 4px;
  margin: 20px 0;
}

.content-image-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 30px 0;
}

.content-image-grid img {
  width: 100%;
  margin: 0;
}

/* --- Glitch效果 --- */
.glitch-text {
  position: relative;
}

.glitch-text:hover {
  animation: glitch 0.3s infinite;
}

@keyframes glitch {
  0% { transform: translate(0); }
  20% { transform: translate(-2px, 2px); }
  40% { transform: translate(-2px, -2px); }
  60% { transform: translate(2px, 2px); }
  80% { transform: translate(2px, -2px); }
  100% { transform: translate(0); }
}

/* --- 响应式设计 --- */
@media (max-width: 1024px) {
  .blueprints-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  html { font-size: 14px; }
  
  .hamburger { display: flex; }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.98);
    flex-direction: column;
    border-top: 1px solid var(--cyber-purple);
    padding: 10px 0;
  }
  
  .nav-links.active { display: flex; }
  
  .nav-links li a {
    padding: 12px 20px;
    border-bottom: none;
  }
  
  .hero-content h1 { font-size: 1.8rem; }
  
  .hologram-display { grid-template-columns: 1fr; }
  
  .reviews-grid { grid-template-columns: 1fr; }
  
  .blueprints-grid { grid-template-columns: repeat(2, 1fr); }
  
  .license-showcase { grid-template-columns: 1fr; text-align: center; }
  
  .archive-item {
    grid-template-columns: 1fr;
    gap: 5px;
  }
  
  .footer-grid { grid-template-columns: 1fr; }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .content-image-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-content h1 { font-size: 1.4rem; }
  
  .section-title h2 { font-size: 1.3rem; }
  
  .blueprints-grid { grid-template-columns: 1fr; }
  
  .manifesto-terminal { padding: 20px; }
  
  .reg-form { padding: 25px; }
}

/* --- 视频播放按钮 --- */
.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
  width: 70px;
  height: 70px;
  border: 2px solid var(--neon-cyan);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  background: rgba(0, 0, 0, 0.5);
}

.video-play-btn::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-left: 20px solid var(--neon-cyan);
  border-top: 12px solid transparent;
  border-bottom: 12px solid transparent;
  margin-left: 5px;
}

.video-play-btn:hover {
  box-shadow: var(--glow-cyan);
  transform: translate(-50%, -50%) scale(1.1);
}

/* --- APP下载页特殊样式 --- */
.terminal-steps {
  background: rgba(0, 10, 0, 0.9);
  border: 1px solid #00ff00;
  padding: 30px;
  border-radius: 4px;
  margin: 30px 0;
}

.terminal-step {
  margin-bottom: 15px;
  color: #00ff00;
  font-size: 0.85rem;
}

.terminal-step .prompt {
  color: var(--neon-cyan);
}

.terminal-step .cursor {
  display: inline-block;
  width: 8px;
  height: 16px;
  background: #00ff00;
  animation: blink 1s step-end infinite;
  vertical-align: middle;
  margin-left: 3px;
}

.app-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 30px 0;
}

.app-feature-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 25px;
  border-radius: 4px;
  text-align: center;
}

.app-feature-card h4 {
  font-family: var(--font-heading);
  color: var(--neon-cyan);
  font-size: 0.8rem;
  margin-bottom: 10px;
}

.app-feature-card p {
  font-size: 0.8rem;
  color: #888;
}

@media (max-width: 768px) {
  .app-features-grid { grid-template-columns: 1fr; }
}

/* --- 淡入动画 --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}