/* ==========================================================================
   SPEEDCAT 示波声学 / 电子脉冲 核心设计系统 (Pulse Oscillator & Cyber Wave)
   视觉：工业示波器荧光绿 (#00ff66) + 能量亮青 (#00f5d4) + 工业深黑 (#06090c)
   ========================================================================== */

:root {
  --bg-dark: #05080b;
  --bg-surface: #0a0f14;
  --bg-card: #0d151d;
  --bg-card-hover: #121c26;
  --border-subtle: rgba(0, 255, 102, 0.15);
  --border-active: rgba(0, 255, 102, 0.45);
  --border-cyan: rgba(0, 245, 212, 0.35);
  
  --phosphor-green: #00ff66;
  --phosphor-green-rgb: 0, 255, 102;
  --phosphor-glow: rgba(0, 255, 102, 0.5);
  
  --energy-cyan: #00f5d4;
  --energy-cyan-rgb: 0, 245, 212;
  --energy-glow: rgba(0, 245, 212, 0.5);
  
  --overdrive-red: #ff3366;
  --overdrive-amber: #ffaa00;
  
  --text-main: #f0f7f4;
  --text-muted: #8ba2b5;
  --text-dim: #4e6578;
  
  --font-mono: "JetBrains Mono", "SF Mono", "Fira Code", "Roboto Mono", Consolas, monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  
  --container-max: 1240px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-dark);
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(0, 255, 102, 0.08) 0%, transparent 60%),
    linear-gradient(rgba(0, 255, 102, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 102, 0.03) 1px, transparent 1px);
  background-size: 100% 100%, 32px 32px, 32px 32px;
  background-position: 0 0, -1px -1px, -1px -1px;
}

/* 扫描线暗纹 */
body::after {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 3px,
    rgba(0, 0, 0, 0.25) 4px
  );
  pointer-events: none;
  z-index: 9999;
  opacity: 0.7;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* 示波器文本发光通用类 */
.glow-text-green {
  color: var(--phosphor-green);
  text-shadow: 0 0 10px rgba(0, 255, 102, 0.65), 0 0 20px rgba(0, 255, 102, 0.25);
}

.glow-text-cyan {
  color: var(--energy-cyan);
  text-shadow: 0 0 10px rgba(0, 245, 212, 0.65), 0 0 20px rgba(0, 245, 212, 0.25);
}

.mono-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

/* ==========================================================================
   导航栏 Header
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(6, 9, 12, 0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
}

.oscillo-icon {
  width: 36px;
  height: 36px;
  background: rgba(0, 255, 102, 0.1);
  border: 1px solid var(--phosphor-green);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 12px rgba(0, 255, 102, 0.3);
  position: relative;
  overflow: hidden;
}

.oscillo-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: var(--phosphor-green);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  display: flex;
  flex-direction: column;
}

.logo-brand {
  display: flex;
  align-items: center;
  gap: 6px;
}

.logo-brand span.brand-cat {
  color: var(--phosphor-green);
  text-shadow: 0 0 10px rgba(0, 255, 102, 0.5);
}

.logo-sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 1.8px;
  margin-top: -2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-item {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: all 0.25s ease;
  position: relative;
  padding: 6px 0;
}

.nav-item:hover, .nav-item.active {
  color: var(--phosphor-green);
  text-shadow: 0 0 8px rgba(0, 255, 102, 0.4);
}

.nav-item::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--phosphor-green);
  box-shadow: 0 0 8px var(--phosphor-green);
  transition: width 0.25s ease;
}

.nav-item:hover::after {
  width: 100%;
}

.nav-item.badge-kb {
  position: relative;
}

.nav-item.badge-kb::before {
  content: "8+ GUIDE";
  position: absolute;
  top: -10px;
  right: -24px;
  font-size: 0.58rem;
  font-family: var(--font-mono);
  background: rgba(0, 245, 212, 0.15);
  border: 1px solid var(--energy-cyan);
  color: var(--energy-cyan);
  padding: 1px 4px;
  border-radius: 4px;
  line-height: 1;
}

.header-action {
  display: flex;
  align-items: center;
  gap: 16px;
}

.pulse-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  background: rgba(0, 255, 102, 0.12);
  border: 1px solid var(--phosphor-green);
  color: var(--phosphor-green);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 6px;
  transition: all 0.25s ease;
  box-shadow: 0 0 15px rgba(0, 255, 102, 0.2);
  font-family: var(--font-mono);
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
}

.pulse-btn:hover {
  background: var(--phosphor-green);
  color: #040806;
  box-shadow: 0 0 25px rgba(0, 255, 102, 0.6), inset 0 0 10px rgba(255, 255, 255, 0.5);
  transform: translateY(-1px);
}

.pulse-btn-cyan {
  background: rgba(0, 245, 212, 0.12);
  border: 1px solid var(--energy-cyan);
  color: var(--energy-cyan);
  box-shadow: 0 0 15px rgba(0, 245, 212, 0.2);
}

.pulse-btn-cyan:hover {
  background: var(--energy-cyan);
  color: #040806;
  box-shadow: 0 0 25px rgba(0, 245, 212, 0.6);
}

.pulse-btn-lg {
  padding: 14px 34px;
  font-size: 1.05rem;
}

.mobile-menu-btn {
  display: none;
  font-size: 1.5rem;
  color: var(--phosphor-green);
}

/* ==========================================================================
   Hero 示波器视窗板块
   ========================================================================== */
.hero-section {
  padding-top: calc(var(--header-height) + 40px);
  padding-bottom: 70px;
  position: relative;
}

.hero-top-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(13, 21, 29, 0.8);
  border: 1px solid var(--border-active);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  box-shadow: 0 0 20px rgba(0, 255, 102, 0.1);
}

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

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -1.2px;
  margin-bottom: 20px;
  max-width: 960px;
}

.hero-title .quote-mark {
  color: var(--phosphor-green);
  font-family: var(--font-mono);
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 820px;
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

/* 示波器工业面板 (Oscilloscope Scope Console) */
.oscilloscope-console {
  background: #080c10;
  border: 1px solid var(--border-active);
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8), 0 0 30px rgba(0, 255, 102, 0.12);
  position: relative;
  overflow: hidden;
}

.console-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: rgba(13, 21, 29, 0.9);
  border-bottom: 1px solid rgba(0, 255, 102, 0.2);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.console-header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.scope-led {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--phosphor-green);
}

.scope-screen-wrapper {
  position: relative;
  width: 100%;
  height: 340px;
  background: #040709;
  overflow: hidden;
}

/* 示波器十字网格刻度 (Graticule) */
.graticule-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(0, 255, 102, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 102, 0.08) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 2;
}

.graticule-grid::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 1px;
  background: rgba(0, 255, 102, 0.25);
  box-shadow: 0 0 6px rgba(0, 255, 102, 0.3);
}

.graticule-grid::after {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 1px;
  height: 100%;
  background: rgba(0, 255, 102, 0.25);
  box-shadow: 0 0 6px rgba(0, 255, 102, 0.3);
}

#pulseCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 3;
}

/* 示波屏屏幕读数 HUD */
.scope-hud {
  position: absolute;
  z-index: 4;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--phosphor-green);
  text-shadow: 0 0 6px rgba(0, 255, 102, 0.8);
  pointer-events: none;
  padding: 12px 18px;
}

.hud-top-left {
  top: 0;
  left: 0;
  line-height: 1.5;
}

.hud-top-right {
  top: 0;
  right: 0;
  text-align: right;
  line-height: 1.5;
}

.hud-bottom-left {
  bottom: 0;
  left: 0;
  color: var(--energy-cyan);
  text-shadow: 0 0 6px rgba(0, 245, 212, 0.8);
}

/* 控制台底座与节拍器旋钮拨盘 (BPM / Frequency Dial Controls) */
.console-controls {
  padding: 24px;
  background: #090e13;
  border-top: 1px solid rgba(0, 255, 102, 0.2);
  display: grid;
  grid-template-columns: 1fr 1.6fr 1fr;
  gap: 24px;
  align-items: center;
}

.dial-panel {
  display: flex;
  align-items: center;
  gap: 20px;
}

.dial-knob-container {
  position: relative;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: radial-gradient(circle, #1a2530 0%, #0d151c 70%, #05080c 100%);
  border: 2px solid var(--border-active);
  box-shadow: 0 4px 15px rgba(0,0,0,0.8), 0 0 12px rgba(0, 255, 102, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
}

.dial-knob {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(145deg, #18222b, #0c1218);
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  transition: transform 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.dial-indicator {
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 14px;
  background: var(--phosphor-green);
  border-radius: 2px;
  box-shadow: 0 0 8px var(--phosphor-green);
}

.dial-knob-container.overdrive .dial-indicator {
  background: var(--overdrive-red);
  box-shadow: 0 0 12px var(--overdrive-red);
}

.dial-text {
  display: flex;
  flex-direction: column;
}

.dial-title {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.dial-current-mode {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--phosphor-green);
  text-shadow: 0 0 8px rgba(0, 255, 102, 0.4);
}

.dial-switch-presets {
  display: flex;
  gap: 8px;
  background: rgba(4, 7, 10, 0.6);
  padding: 6px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
}

.preset-btn {
  flex: 1;
  padding: 10px 14px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: all 0.2s ease;
  text-align: center;
  border: 1px solid transparent;
}

.preset-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
}

.preset-btn.active {
  background: rgba(0, 255, 102, 0.15);
  border-color: var(--phosphor-green);
  color: var(--phosphor-green);
  box-shadow: 0 0 10px rgba(0, 255, 102, 0.3);
  font-weight: 700;
}

.preset-btn.active.preset-overdrive {
  background: rgba(255, 51, 102, 0.15);
  border-color: var(--overdrive-red);
  color: var(--overdrive-red);
  box-shadow: 0 0 15px rgba(255, 51, 102, 0.4);
}

.console-readouts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  font-family: var(--font-mono);
}

.readout-item {
  background: rgba(4, 7, 10, 0.8);
  border: 1px solid rgba(0, 255, 102, 0.12);
  padding: 8px 12px;
  border-radius: 6px;
}

.readout-label {
  font-size: 0.68rem;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 2px;
}

.readout-value {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--energy-cyan);
}

/* ==========================================================================
   板块通用标题
   ========================================================================== */
.section {
  padding: 80px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 54px;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--phosphor-green);
  background: rgba(0, 255, 102, 0.08);
  border: 1px solid rgba(0, 255, 102, 0.25);
  padding: 4px 14px;
  border-radius: 4px;
  margin-bottom: 14px;
  letter-spacing: 1.5px;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 800;
  letter-spacing: -0.6px;
  margin-bottom: 14px;
  color: var(--text-main);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   板块3：节点延迟和状态板块 (Real-time Pulse Node Matrix)
   ========================================================================== */
.nodes-matrix {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 20px;
}

.node-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 20px 22px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.node-card:hover {
  border-color: var(--border-active);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 255, 102, 0.15);
}

.node-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--phosphor-green);
  box-shadow: 0 0 8px var(--phosphor-green);
}

.node-card.vip::before {
  background: var(--energy-cyan);
  box-shadow: 0 0 8px var(--energy-cyan);
}

.node-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.node-location {
  display: flex;
  align-items: center;
  gap: 10px;
}

.node-flag {
  font-size: 1.4rem;
}

.node-name {
  font-size: 1.05rem;
  font-weight: 700;
}

.node-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(0, 255, 102, 0.1);
  color: var(--phosphor-green);
  border: 1px solid rgba(0, 255, 102, 0.3);
}

.node-badge.cyan {
  background: rgba(0, 245, 212, 0.1);
  color: var(--energy-cyan);
  border-color: rgba(0, 245, 212, 0.3);
}

.node-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  background: rgba(5, 8, 12, 0.6);
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 14px;
  font-family: var(--font-mono);
}

.metric-item {
  display: flex;
  flex-direction: column;
}

.metric-lbl {
  font-size: 0.65rem;
  color: var(--text-dim);
}

.metric-val {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-main);
}

.metric-val.green {
  color: var(--phosphor-green);
}

.node-oscillo-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.mini-pulse-canvas {
  flex: 1;
  height: 24px;
  background: rgba(0, 0, 0, 0.4);
  border-radius: 4px;
  border: 1px solid rgba(0, 255, 102, 0.1);
}

/* 节点刷新控制栏 */
.node-control-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 36px;
  padding: 16px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

/* ==========================================================================
   板块4：核心优势板块 (Core Architecture)
   ========================================================================== */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.advantage-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 30px 24px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.advantage-card:hover {
  border-color: var(--phosphor-green);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7), 0 0 20px rgba(0, 255, 102, 0.18);
  transform: translateY(-4px);
}

.adv-icon {
  width: 52px;
  height: 52px;
  background: rgba(0, 255, 102, 0.08);
  border: 1px solid rgba(0, 255, 102, 0.3);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--phosphor-green);
}

.adv-icon svg {
  width: 28px;
  height: 28px;
}

.adv-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.adv-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ==========================================================================
   板块4续：套餐价格板块 (Pricing Tier)
   ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s ease;
}

.pricing-card:hover {
  border-color: var(--border-active);
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.7), 0 0 25px rgba(0, 255, 102, 0.15);
}

.pricing-card.popular {
  border-color: var(--phosphor-green);
  background: linear-gradient(180deg, rgba(0, 255, 102, 0.04) 0%, var(--bg-card) 100%);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), 0 0 25px rgba(0, 255, 102, 0.2);
}

.card-ribbon {
  position: absolute;
  top: -12px;
  right: 24px;
  background: var(--phosphor-green);
  color: #040806;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 4px;
  letter-spacing: 1px;
  box-shadow: 0 0 12px rgba(0, 255, 102, 0.6);
}

.plan-name {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.plan-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  min-height: 40px;
}

.plan-price-wrapper {
  margin-bottom: 28px;
  font-family: var(--font-mono);
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.price-currency {
  font-size: 1.3rem;
  color: var(--phosphor-green);
}

.price-amount {
  font-size: 3rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1;
}

.price-cycle {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.plan-features {
  margin-bottom: 32px;
  flex-grow: 1;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.feature-item svg {
  width: 16px;
  height: 16px;
  fill: var(--phosphor-green);
  flex-shrink: 0;
}

.pricing-card .pulse-btn {
  width: 100%;
}

/* ==========================================================================
   知识库引导专区 (首页无缝指引卡片，符合不要直接堆文章在首页的规范)
   ========================================================================== */
.kb-banner-section {
  background: linear-gradient(135deg, rgba(13, 21, 29, 0.9) 0%, rgba(6, 9, 12, 0.95) 100%);
  border: 1px solid var(--border-active);
  border-radius: 16px;
  padding: 48px;
  margin: 60px 0;
  box-shadow: 0 0 35px rgba(0, 255, 102, 0.1);
  position: relative;
  overflow: hidden;
}

.kb-banner-section::after {
  content: "KNOWLEDGE BASE";
  position: absolute;
  right: -20px;
  bottom: -20px;
  font-family: var(--font-mono);
  font-size: 5rem;
  font-weight: 900;
  color: rgba(0, 255, 102, 0.03);
  pointer-events: none;
}

.kb-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}

.kb-banner-text {
  max-width: 650px;
}

.kb-banner-title {
  font-size: 1.9rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.kb-banner-desc {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 20px;
}

.kb-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.kb-pill {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: rgba(0, 255, 102, 0.08);
  border: 1px solid rgba(0, 255, 102, 0.2);
  color: var(--phosphor-green);
  padding: 4px 10px;
  border-radius: 4px;
}

/* ==========================================================================
   板块5：常见问题板块 (FAQ Handled Accordion)
   ========================================================================== */
.faq-accordion {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color 0.25s ease;
}

.faq-item:hover, .faq-item.active {
  border-color: var(--border-active);
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.faq-icon {
  font-family: var(--font-mono);
  color: var(--phosphor-green);
  font-size: 1.2rem;
  transition: transform 0.25s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 0 24px 24px 24px;
  border-top: 1px dashed rgba(0, 255, 102, 0.15);
  margin-top: 10px;
  padding-top: 16px;
}

/* ==========================================================================
   板块6：用户评价板块 (Pulse Feedbacks & Logs)
   ========================================================================== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  position: relative;
}

.review-card:hover {
  border-color: var(--border-active);
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6), 0 0 18px rgba(0, 255, 102, 0.12);
}

.review-stars {
  color: var(--phosphor-green);
  font-size: 0.9rem;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.review-text {
  font-size: 0.95rem;
  color: var(--text-main);
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
}

.review-user {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0, 255, 102, 0.15);
  border: 1px solid var(--phosphor-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--phosphor-green);
}

.user-name {
  font-size: 0.92rem;
  font-weight: 700;
}

.user-role {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.user-ping-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--energy-cyan);
}

/* ==========================================================================
   页脚 Footer
   ========================================================================== */
.site-footer {
  background: #040608;
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 36px;
  position: relative;
  z-index: 10;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand-desc {
  color: var(--text-dim);
  font-size: 0.88rem;
  max-width: 420px;
  margin-top: 14px;
  line-height: 1.6;
}

.footer-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-main);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 18px;
}

.footer-links-list li {
  margin-bottom: 10px;
}

.footer-links-list a {
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

.footer-links-list a:hover {
  color: var(--phosphor-green);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ==========================================================================
   知识库独立中心与文章详情页专属样式 (kb/index.html & kb/*.html)
   ========================================================================== */
.kb-hero {
  padding-top: calc(var(--header-height) + 50px);
  padding-bottom: 50px;
  border-bottom: 1px solid var(--border-subtle);
  background: radial-gradient(circle at 50% 30%, rgba(0, 245, 212, 0.06) 0%, transparent 60%);
}

.kb-breadcrumbs {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.kb-breadcrumbs a {
  color: var(--text-muted);
}

.kb-breadcrumbs a:hover {
  color: var(--phosphor-green);
}

.kb-article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 26px;
  margin-top: 40px;
}

.kb-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  position: relative;
}

.kb-card:hover {
  border-color: var(--phosphor-green);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7), 0 0 20px rgba(0, 255, 102, 0.18);
}

.kb-card-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--energy-cyan);
  background: rgba(0, 245, 212, 0.08);
  border: 1px solid rgba(0, 245, 212, 0.25);
  padding: 3px 8px;
  border-radius: 4px;
  align-self: flex-start;
  margin-bottom: 14px;
}

.kb-card-title {
  font-size: 1.22rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 12px;
  color: var(--text-main);
  transition: color 0.2s;
}

.kb-card:hover .kb-card-title {
  color: var(--phosphor-green);
}

.kb-card-summary {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.kb-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* 文章详情页排版 Typography */
.article-container {
  max-width: 880px;
  margin: 0 auto;
  padding: 50px 24px 100px;
}

.article-header {
  margin-bottom: 40px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border-subtle);
}

.article-title {
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.8px;
  margin-bottom: 20px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-dim);
  flex-wrap: wrap;
}

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

.article-content {
  font-size: 1.05rem;
  line-height: 1.85;
  color: #cfdbe6;
}

.article-content h2 {
  font-size: 1.7rem;
  font-weight: 800;
  margin: 44px 0 18px;
  color: var(--text-main);
  border-left: 4px solid var(--phosphor-green);
  padding-left: 14px;
}

.article-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 30px 0 14px;
  color: var(--energy-cyan);
}

.article-content p {
  margin-bottom: 22px;
}

.article-content ul, .article-content ol {
  margin: 20px 0 26px 24px;
}

.article-content li {
  margin-bottom: 10px;
}

.article-content strong {
  color: var(--text-main);
}

.article-content blockquote {
  background: rgba(13, 21, 29, 0.7);
  border-left: 3px solid var(--energy-cyan);
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
  margin: 28px 0;
  color: var(--text-muted);
}

.article-content pre {
  background: #04070a;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 18px 22px;
  margin: 24px 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--phosphor-green);
}

.article-content code {
  font-family: var(--font-mono);
  background: rgba(0, 255, 102, 0.1);
  color: var(--phosphor-green);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}

.article-cta-box {
  background: linear-gradient(135deg, rgba(13, 21, 29, 0.95), rgba(7, 11, 15, 0.95));
  border: 1px solid var(--border-active);
  border-radius: 12px;
  padding: 36px;
  margin-top: 50px;
  text-align: center;
  box-shadow: 0 0 30px rgba(0, 255, 102, 0.15);
}

/* ==========================================================================
   响应式断点适配
   ========================================================================== */
@media (max-width: 992px) {
  .hero-title {
    font-size: 2.5rem;
  }
  .console-controls {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .mobile-menu-btn {
    display: block;
  }
  .hero-title {
    font-size: 2.1rem;
  }
  .scope-screen-wrapper {
    height: 250px;
  }
  .nodes-matrix {
    grid-template-columns: 1fr;
  }
  .section {
    padding: 60px 0;
  }
  .article-title {
    font-size: 1.9rem;
  }
}