:root {
  --bg-primary: #0A0118;
  --bg-secondary: #130328;
  --bg-card: rgba(26, 7, 51, 0.75);
  --bg-card-hover: rgba(42, 11, 82, 0.85);
  --neon-pink: #FF2ED1;
  --neon-cyan: #00F0FF;
  --neon-purple: #9D00FF;
  --neon-yellow: #FFE600;
  --text-main: #FFFFFF;
  --text-muted: #A5A1B8;
  --border-neon: rgba(0, 240, 255, 0.35);
  --border-pink: rgba(255, 46, 209, 0.4);
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --glow-cyan: 0 0 15px rgba(0, 240, 255, 0.6), 0 0 30px rgba(0, 240, 255, 0.3);
  --glow-pink: 0 0 15px rgba(255, 46, 209, 0.6), 0 0 30px rgba(255, 46, 209, 0.3);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-main);
  overflow-x: hidden;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
}

/* 扫描线效果 */
.scanline {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  background: linear-gradient(
    rgba(18, 16, 16, 0) 50%, 
    rgba(0, 0, 0, 0.25) 50%
  ), linear-gradient(
    90deg,
    rgba(255, 0, 0, 0.03),
    rgba(0, 255, 0, 0.01),
    rgba(0, 0, 255, 0.03)
  );
  background-size: 100% 4px, 6px 100%;
  z-index: 999;
  opacity: 0.75;
}

/* 透视网格地面 */
.cyber-grid {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 60vh;
  background-image: 
    linear-gradient(to right, rgba(0, 240, 255, 0.15) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 46, 209, 0.15) 1px, transparent 1px);
  background-size: 50px 50px;
  transform: perspective(600px) rotateX(65deg);
  transform-origin: bottom center;
  pointer-events: none;
  z-index: 0;
  mask-image: linear-gradient(to top, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0) 90%);
  -webkit-mask-image: linear-gradient(to top, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0) 90%);
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  0% { background-position: 0 0; }
  100% { background-position: 0 500px; }
}

/* 跟随鼠标的径向霓虹光晕拖尾 */
.cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 450px;
  height: 450px;
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(0, 240, 255, 0.18) 0%, rgba(255, 46, 209, 0.12) 40%, rgba(157, 0, 255, 0) 70%);
  filter: blur(25px);
  z-index: 1;
  transition: opacity 0.3s ease;
  will-change: transform;
}

/* 导航栏 */
.cyber-navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 75px;
  background: rgba(10, 1, 24, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 240, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
}

.brand-icon {
  width: 32px;
  height: 32px;
  border: 2px solid var(--neon-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  box-shadow: var(--glow-cyan);
  color: var(--neon-cyan);
  font-size: 18px;
}

.brand-text span {
  color: var(--neon-pink);
  text-shadow: var(--glow-pink);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-menu li a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 500;
  transition: all 0.25s ease;
  position: relative;
  padding: 6px 0;
}

.nav-menu li a:hover,
.nav-menu li a.active {
  color: var(--neon-cyan);
  text-shadow: 0 0 8px rgba(0, 240, 255, 0.7);
}

.nav-menu li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--neon-pink);
  box-shadow: var(--glow-pink);
  transition: width 0.3s ease;
}

.nav-menu li a:hover::after {
  width: 100%;
}

.nav-cta {
  display: flex;
  align-items: center;
}

/* 霓虹切角按钮 */
.cyber-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 12px 30px;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  background: linear-gradient(135deg, rgba(255, 46, 209, 0.2) 0%, rgba(0, 240, 255, 0.2) 100%);
  border: 1px solid var(--neon-cyan);
  clip-path: polygon(14px 0%, 100% 0%, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0% 100%, 0% 14px);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.3), inset 0 0 15px rgba(255, 46, 209, 0.2);
  cursor: pointer;
  transition: all 0.3s ease;
}

.cyber-button:hover {
  background: linear-gradient(135deg, rgba(255, 46, 209, 0.85) 0%, rgba(0, 240, 255, 0.85) 100%);
  box-shadow: var(--glow-cyan), var(--glow-pink);
  color: #0A0118;
  text-shadow: none;
  transform: translateY(-2px);
}

.cyber-button.btn-pink {
  border-color: var(--neon-pink);
  box-shadow: 0 0 15px rgba(255, 46, 209, 0.4);
}

.cyber-button.btn-pink:hover {
  background: var(--neon-pink);
  color: #fff;
  box-shadow: var(--glow-pink);
}

.cyber-button.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
  clip-path: polygon(8px 0%, 100% 0%, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0% 100%, 0% 8px);
}

/* 霓虹灯牌随机闪烁效果 */
.flicker-neon {
  color: #fff;
  text-shadow: 
    0 0 5px #fff,
    0 0 10px #fff,
    0 0 20px var(--neon-pink),
    0 0 40px var(--neon-pink),
    0 0 80px var(--neon-pink);
  animation: flicker 4s infinite alternate;
}

@keyframes flicker {
  0%, 19.999%, 22%, 62.999%, 64%, 64.999%, 70%, 100% {
    opacity: 0.99;
    text-shadow: 
      0 0 5px #fff,
      0 0 10px #fff,
      0 0 20px var(--neon-pink),
      0 0 40px var(--neon-pink),
      0 0 80px var(--neon-pink);
  }
  20%, 21.999%, 63%, 63.999%, 65%, 69.999% {
    opacity: 0.4;
    text-shadow: none;
  }
}

.cyan-neon {
  color: var(--neon-cyan);
  text-shadow: var(--glow-cyan);
}

/* 核心布局容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 10;
}

/* Hero 主视觉区 */
.hero-section {
  padding-top: 150px;
  padding-bottom: 90px;
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 50px;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid var(--neon-cyan);
  border-radius: 20px;
  font-size: 13px;
  color: var(--neon-cyan);
  margin-bottom: 24px;
  letter-spacing: 1px;
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon-cyan);
  box-shadow: 0 0 10px var(--neon-cyan);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.85); opacity: 0.6; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.85); opacity: 0.6; }
}

.hero-title {
  font-size: 50px;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 22px;
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--neon-cyan);
  margin-bottom: 18px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.hero-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 35px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-stats {
  margin-top: 40px;
  display: flex;
  gap: 35px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 25px;
}

.stat-item h4 {
  font-size: 28px;
  color: #fff;
  font-weight: 800;
  font-family: monospace;
}

.stat-item h4 span {
  color: var(--neon-pink);
  font-size: 20px;
}

.stat-item p {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ================= 纯 CSS 赛博机械猫脸 ================= */
.cyber-cat-container {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  width: 100%;
  height: 440px;
}

.cyber-cat {
  position: relative;
  width: 320px;
  height: 340px;
  transform-style: preserve-3d;
  filter: drop-shadow(0 0 35px rgba(0, 240, 255, 0.35));
}

/* 机械猫耳 */
.cat-ear {
  position: absolute;
  top: -20px;
  width: 0;
  height: 0;
  border-left: 45px solid transparent;
  border-right: 45px solid transparent;
  border-bottom: 105px solid #1f073d;
  z-index: 1;
}

.cat-ear.left {
  left: 20px;
  transform: rotate(-18deg);
}

.cat-ear.right {
  right: 20px;
  transform: rotate(18deg);
}

.cat-ear::after {
  content: '';
  position: absolute;
  top: 20px;
  left: -28px;
  width: 0;
  height: 0;
  border-left: 28px solid transparent;
  border-right: 28px solid transparent;
  border-bottom: 75px solid var(--neon-pink);
  filter: drop-shadow(0 0 10px var(--neon-pink));
  opacity: 0.85;
}

/* 耳朵科技天线电路 */
.ear-antenna {
  position: absolute;
  top: -30px;
  width: 3px;
  height: 25px;
  background: var(--neon-cyan);
  box-shadow: 0 0 8px var(--neon-cyan);
}

.cat-ear.left .ear-antenna { left: -10px; transform: rotate(-12deg); }
.cat-ear.right .ear-antenna { right: -10px; transform: rotate(12deg); }

/* 猫头主廓机甲 */
.cat-head {
  position: absolute;
  top: 55px;
  left: 50%;
  transform: translateX(-50%);
  width: 280px;
  height: 250px;
  background: linear-gradient(180deg, #180531 0%, #0d011e 100%);
  border: 2px solid var(--neon-cyan);
  clip-path: polygon(
    25% 0%, 75% 0%, 
    100% 25%, 100% 70%, 
    75% 100%, 25% 100%, 
    0% 70%, 0% 25%
  );
  box-shadow: inset 0 0 30px rgba(0, 240, 255, 0.3);
  z-index: 2;
  overflow: hidden;
}

/* 机甲科技纹理线 */
.cat-head::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    linear-gradient(45deg, transparent 48%, rgba(255, 46, 209, 0.2) 50%, transparent 52%),
    linear-gradient(-45deg, transparent 48%, rgba(0, 240, 255, 0.2) 50%, transparent 52%);
  background-size: 30px 30px;
  opacity: 0.6;
}

/* 额头核心标志 */
.cat-crest {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 38px;
  height: 38px;
  background: #0A0118;
  border: 2px solid var(--neon-pink);
  transform: translateX(-50%) rotate(45deg);
  box-shadow: 0 0 15px var(--neon-pink);
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cat-crest::after {
  content: '⚡';
  color: var(--neon-yellow);
  font-size: 16px;
  transform: rotate(-45deg);
}

/* 眼睛眼眶 */
.cat-eyes {
  position: absolute;
  top: 85px;
  width: 100%;
  display: flex;
  justify-content: space-around;
  padding: 0 25px;
  box-sizing: border-box;
  z-index: 4;
}

.eye-socket {
  width: 80px;
  height: 52px;
  background: #05000c;
  border: 2px solid var(--neon-cyan);
  border-radius: 50px 10px 50px 10px;
  box-shadow: inset 0 0 15px rgba(0, 240, 255, 0.5), 0 0 10px rgba(0, 240, 255, 0.3);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.eye-socket.right {
  border-radius: 10px 50px 10px 50px;
}

/* 发光瞳孔 - JS 实时跟随坐标 */
.pupil {
  width: 24px;
  height: 24px;
  background: radial-gradient(circle, #fff 0%, var(--neon-cyan) 60%, #0088cc 100%);
  border-radius: 50%;
  box-shadow: 0 0 16px var(--neon-cyan), 0 0 28px var(--neon-cyan);
  position: absolute;
  transition: transform 0.08s linear;
  will-change: transform;
}

.pupil::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
}

/* 机械猫鼻与口鼻机甲 */
.cat-nose {
  position: absolute;
  top: 155px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-top: 10px solid var(--neon-pink);
  filter: drop-shadow(0 0 8px var(--neon-pink));
  z-index: 4;
}

.cat-mouth {
  position: absolute;
  top: 172px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 15px;
  border-bottom: 2px solid var(--neon-cyan);
  border-radius: 0 0 30px 30px;
  z-index: 4;
}

/* 机械猫须 - 激光传感器 */
.whiskers {
  position: absolute;
  top: 165px;
  width: 100%;
  z-index: 3;
}

.whisker-line {
  position: absolute;
  height: 2px;
  width: 80px;
  background: linear-gradient(90deg, var(--neon-pink), transparent);
  box-shadow: 0 0 8px var(--neon-pink);
}

.whiskers.left .w1 { left: -40px; top: 0; transform: rotate(10deg); }
.whiskers.left .w2 { left: -45px; top: 18px; transform: rotate(-5deg); }
.whiskers.right .w1 { right: -40px; top: 0; transform: rotate(-10deg); background: linear-gradient(-90deg, var(--neon-cyan), transparent); box-shadow: 0 0 8px var(--neon-cyan); }
.whiskers.right .w2 { right: -45px; top: 18px; transform: rotate(5deg); background: linear-gradient(-90deg, var(--neon-cyan), transparent); box-shadow: 0 0 8px var(--neon-cyan); }

/* 机械猫浮空全息光圈环 */
.halo-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotateX(75deg);
  width: 360px;
  height: 360px;
  border: 2px dashed rgba(0, 240, 255, 0.4);
  border-radius: 50%;
  animation: rotateHalo 12s linear infinite;
  pointer-events: none;
}

@keyframes rotateHalo {
  from { transform: translate(-50%, -50%) rotateX(75deg) rotateZ(0deg); }
  to { transform: translate(-50%, -50%) rotateX(75deg) rotateZ(360deg); }
}

/* ================= 通用 Section 标题 ================= */
.section {
  padding: 100px 0;
  position: relative;
  z-index: 10;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px auto;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--neon-pink);
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.section-title {
  font-size: 38px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.3;
}

.section-desc {
  font-size: 16px;
  color: var(--text-muted);
}

/* ================= 核心优势 3D 卡片 ================= */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  perspective: 1000px;
}

.cyber-card {
  background: var(--bg-card);
  border: 1px solid var(--border-neon);
  border-radius: 12px;
  padding: 40px 30px;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform 0.15s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  transform-style: preserve-3d;
  will-change: transform;
}

.cyber-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink));
}

.cyber-card:hover {
  border-color: var(--neon-pink);
  box-shadow: 0 15px 35px rgba(255, 46, 209, 0.25), inset 0 0 20px rgba(0, 240, 255, 0.1);
}

.card-icon-box {
  width: 65px;
  height: 65px;
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid var(--neon-cyan);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 28px;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
  transform: translateZ(30px);
}

.cyber-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 15px;
  color: #fff;
  transform: translateZ(25px);
}

.cyber-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  transform: translateZ(20px);
}

.card-badge {
  display: inline-block;
  margin-top: 20px;
  font-size: 12px;
  font-weight: 600;
  color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.1);
  padding: 4px 10px;
  border-radius: 4px;
  border-left: 2px solid var(--neon-cyan);
  transform: translateZ(20px);
}

/* ================= 流媒体与 AI 支持图卡 ================= */
.media-ai-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.support-category-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 46, 209, 0.35);
  border-radius: 14px;
  padding: 35px;
  position: relative;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.support-category-card h3 {
  font-size: 22px;
  margin-bottom: 12px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 12px;
}

.support-category-card p {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 25px;
}

.service-pills {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.service-pill {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: 8px;
  transition: all 0.3s ease;
}

.service-pill:hover {
  background: rgba(0, 240, 255, 0.12);
  border-color: var(--neon-cyan);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 240, 255, 0.2);
}

.pill-icon {
  font-size: 22px;
}

.pill-info h4 {
  font-size: 15px;
  color: #fff;
}

.pill-info span {
  font-size: 12px;
  color: var(--neon-pink);
}

/* ================= 价格套餐对比表 ================= */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  align-items: stretch;
}

.price-card {
  background: var(--bg-card);
  border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: 14px;
  padding: 35px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.price-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 15px 35px rgba(0, 240, 255, 0.25);
  border-color: var(--neon-cyan);
}

.price-card.popular {
  border-color: var(--neon-pink);
  background: linear-gradient(180deg, rgba(46, 11, 74, 0.85) 0%, rgba(20, 4, 40, 0.95) 100%);
  box-shadow: 0 10px 30px rgba(255, 46, 209, 0.2);
}

.price-card.popular::before {
  content: 'POPULAR ★ 最受欢迎';
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--neon-pink);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: 20px;
  letter-spacing: 1px;
  box-shadow: 0 0 12px var(--neon-pink);
}

.price-plan-name {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.price-plan-desc {
  font-size: 13px;
  color: var(--text-muted);
  min-height: 38px;
  margin-bottom: 20px;
}

.price-amount {
  display: flex;
  align-items: baseline;
  margin-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 20px;
}

.price-currency {
  font-size: 20px;
  color: var(--neon-cyan);
  font-weight: 700;
}

.price-num {
  font-size: 42px;
  font-weight: 900;
  color: #fff;
  font-family: monospace;
  margin-left: 2px;
}

.price-cycle {
  font-size: 14px;
  color: var(--text-muted);
  margin-left: 6px;
}

.price-features {
  list-style: none;
  margin-bottom: 30px;
  flex-grow: 1;
}

.price-features li {
  font-size: 14px;
  color: #d1cfe0;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.price-features li span.check {
  color: var(--neon-cyan);
  font-weight: bold;
}

.price-features li.disabled {
  color: rgba(255, 255, 255, 0.3);
  text-decoration: line-through;
}

.price-cta-wrapper {
  margin-top: auto;
}

.price-cta-wrapper .cyber-button {
  width: 100%;
}

/* ================= 用户真实评价 ================= */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: 12px;
  padding: 30px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: relative;
}

.rating-stars {
  color: var(--neon-yellow);
  font-size: 15px;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: 15px;
  color: #e2e0ed;
  line-height: 1.7;
  margin-bottom: 20px;
}

.testimonial-user {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 16px;
}

.user-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-pink));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #0A0118;
  font-size: 16px;
}

.user-meta h4 {
  font-size: 15px;
  color: #fff;
}

.user-meta span {
  font-size: 12px;
  color: var(--text-muted);
}

/* ================= FAQ 常见问题解答 ================= */
.faq-accordion {
  max-width: 850px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: 10px;
  overflow: hidden;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  text-align: left;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 17px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-family: var(--font-family);
  transition: color 0.25s ease;
}

.faq-question:hover {
  color: var(--neon-cyan);
}

.faq-arrow {
  font-size: 16px;
  color: var(--neon-pink);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  max-height: 250px;
  padding: 0 24px 22px 24px;
}

/* ================= 页脚规范 ================= */
.cyber-footer {
  background: #060010;
  border-top: 1px solid rgba(0, 240, 255, 0.3);
  padding: 50px 0 35px 0;
  position: relative;
  z-index: 10;
  margin-top: 60px;
}

.footer-nav-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.footer-link-btn {
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  padding: 10px 22px;
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: 6px;
  background: rgba(26, 7, 51, 0.6);
  transition: all 0.3s ease;
}

.footer-link-btn:hover {
  border-color: var(--neon-pink);
  color: var(--neon-pink);
  box-shadow: 0 0 15px rgba(255, 46, 209, 0.4);
  transform: translateY(-2px);
}

.footer-bottom-copy {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 25px;
  max-width: 800px;
  margin: 0 auto;
}

/* ================= 响应式适配 @media ================= */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }
  .hero-cta-group {
    justify-content: center;
  }
  .hero-stats {
    justify-content: center;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .cyber-navbar {
    padding: 0 20px;
    height: 65px;
  }
  .nav-menu {
    display: none; /* 移动端隐藏中间菜单，保留Logo与直接CTA入口 */
  }
  .hero-section {
    padding-top: 110px;
    padding-bottom: 60px;
  }
  .hero-title {
    font-size: 34px;
  }
  .hero-subtitle {
    font-size: 17px;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .media-ai-grid {
    grid-template-columns: 1fr;
  }
  .service-pills {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .footer-nav-container {
    flex-direction: column;
    gap: 15px;
    width: 100%;
  }
  .footer-link-btn {
    width: 80%;
    text-align: center;
    padding: 12px;
  }
  .cyber-cat-container {
    height: 320px;
  }
  .cyber-cat {
    transform: scale(0.85);
  }
}

/* ================= 深度技术文章排版专用样式 ================= */
.article-container {
  max-width: 920px;
  margin: 120px auto 80px auto;
  padding: 45px 50px;
  background: rgba(22, 6, 44, 0.82);
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: 16px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.7);
  position: relative;
  z-index: 10;
}

.article-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  padding-bottom: 25px;
  margin-bottom: 35px;
}

.article-badge {
  display: inline-block;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 700;
  color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid var(--neon-cyan);
  border-radius: 4px;
  margin-bottom: 15px;
  letter-spacing: 1px;
}

.article-title {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.35;
  color: #fff;
  margin-bottom: 18px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 13px;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.article-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-toc {
  background: rgba(10, 1, 24, 0.6);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-left: 3px solid var(--neon-pink);
  border-radius: 8px;
  padding: 20px 25px;
  margin-bottom: 35px;
}

.article-toc h3 {
  font-size: 16px;
  color: #fff;
  margin-bottom: 12px;
}

.article-toc ul {
  list-style: none;
  padding-left: 0;
}

.article-toc li {
  margin-bottom: 8px;
}

.article-toc a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s ease;
}

.article-toc a:hover {
  color: var(--neon-cyan);
  text-decoration: underline;
}

.article-content {
  font-size: 16px;
  color: #d8d5e8;
  line-height: 1.85;
}

.article-content h2 {
  font-size: 24px;
  color: #fff;
  margin-top: 45px;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(0, 240, 255, 0.2);
  display: flex;
  align-items: center;
  gap: 10px;
}

.article-content h3 {
  font-size: 19px;
  color: var(--neon-cyan);
  margin-top: 30px;
  margin-bottom: 14px;
}

.article-content p {
  margin-bottom: 20px;
}

.article-content ul, .article-content ol {
  margin-bottom: 24px;
  padding-left: 24px;
}

.article-content li {
  margin-bottom: 8px;
}

.article-content blockquote {
  background: rgba(255, 46, 209, 0.08);
  border-left: 4px solid var(--neon-pink);
  padding: 16px 22px;
  border-radius: 0 8px 8px 0;
  margin: 25px 0;
  color: #f1e9f8;
  font-style: italic;
}

.article-content code {
  background: rgba(0, 0, 0, 0.4);
  color: var(--neon-pink);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 14px;
}

.article-content pre {
  background: #060010;
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: 8px;
  padding: 18px 20px;
  overflow-x: auto;
  margin: 22px 0;
  font-family: monospace;
  font-size: 14px;
  color: #00F0FF;
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  margin: 30px 0;
  font-size: 14px;
  background: rgba(10, 1, 24, 0.4);
}

.article-table th, .article-table td {
  padding: 14px 18px;
  text-align: left;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.article-table th {
  background: rgba(0, 240, 255, 0.12);
  color: var(--neon-cyan);
  font-weight: 700;
}

.article-table tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.02);
}

.article-content a {
  color: var(--neon-cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color 0.2s;
}

.article-content a:hover {
  color: var(--neon-pink);
}

.article-cta-box {
  background: linear-gradient(135deg, rgba(255, 46, 209, 0.15) 0%, rgba(0, 240, 255, 0.15) 100%);
  border: 1px solid var(--neon-cyan);
  border-radius: 12px;
  padding: 30px;
  margin: 45px 0 25px 0;
  text-align: center;
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.2);
}

.article-cta-box h3 {
  font-size: 22px;
  color: #fff;
  margin-bottom: 12px;
}

.article-cta-box p {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 20px;
}

@media (max-width: 768px) {
  .article-container {
    margin: 85px 14px 45px 14px;
    padding: 25px 18px;
  }
  .article-title {
    font-size: 24px;
  }
}