/* ==========================================================================
   赛博云 (CyberCloud) - 顶级战术工程样式表 (style.css)
   设计语言：Faraday-Shielded Cryptographic Reactor & Plasma-Breach UI
   暗夜穿透 (Nocturnal Penetration) + 钛金白昼高精机甲风 | 原生纯CSS秒开 | 极致精致
   ========================================================================== */

/* ---------------- CSS 变量定义：白天模式（钛金精密战术实验室） ---------------- */
:root {
  --bg-primary: #f6f8fc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #edf2f9;
  --bg-armor: #e2e8f3;
  --bg-alt: #f0f4fb;
  --border-color: #cbd5e1;
  --border-armor: #94a3b8;
  --border-glow: rgba(2, 132, 199, 0.35);

  --text-primary: #0a0f1d;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  --plasma-cyan: #0284c7;
  --plasma-cyan-glow: rgba(2, 132, 199, 0.25);
  --ionized-violet: #6d28d9;
  --ionized-violet-glow: rgba(109, 40, 217, 0.22);
  --accent-emerald: #059669;

  --copper-grad: linear-gradient(90deg, #92400e 0%, #b45309 15%, #f59e0b 50%, #d97706 85%, #78350f 100%);
  --titanium-slat: linear-gradient(180deg, #ffffff 0%, #e2e8f0 40%, #cbd5e1 90%, #94a3b8 100%);
  --titanium-slat-border: #94a3b8;
  --primary-gradient: linear-gradient(135deg, #0284c7 0%, #6d28d9 100%);
  --card-glow: rgba(2, 132, 199, 0.08);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 14px rgba(10, 15, 29, 0.06);
  --shadow-lg: 0 16px 36px -4px rgba(10, 15, 29, 0.1);
  --shadow-reactor: 0 20px 50px -10px rgba(2, 132, 199, 0.2), 0 0 0 1px rgba(148, 163, 184, 0.3);

  --nav-bg: rgba(246, 248, 252, 0.88);
  --badge-bg: rgba(2, 132, 199, 0.09);
  --badge-text: #0284c7;

  --font-mono: "JetBrains Mono", "SF Mono", "Fira Code", Menlo, Consolas, monospace;
  --transition-fast: 0.18s ease;
  --transition-base: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-heavy: 0.5s cubic-bezier(0.25, 1, 0.5, 1);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --container-max: 1240px;
}

/* ---------------- 夜间模式（暗夜穿透：Matte Carbon-Black & High-Voltage Plasma Breach） ---------------- */
[data-theme="dark"] {
  --bg-primary: #050608;             /* 纯粹深邃碳素哑光黑 */
  --bg-surface: #0a0d14;
  --bg-surface-elevated: #111520;
  --bg-armor: #181b24;               /* 拉丝钛合金深装甲 */
  --bg-alt: #0d1018;
  --border-color: #1e2638;
  --border-armor: #2d3852;
  --border-glow: rgba(6, 182, 212, 0.4);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #050608;

  --plasma-cyan: #06b6d4;            /* 高压等离子青 */
  --plasma-cyan-glow: rgba(6, 182, 212, 0.45);
  --ionized-violet: #7c3aed;         /* 电离紫外 */
  --ionized-violet-glow: rgba(124, 58, 237, 0.45);
  --accent-emerald: #10b981;

  --copper-grad: linear-gradient(90deg, #78350f 0%, #b45309 20%, #f59e0b 50%, #d97706 80%, #78350f 100%);
  --titanium-slat: linear-gradient(180deg, #2d3748 0%, #1a202c 50%, #111827 100%);
  --titanium-slat-border: #4a5568;
  --primary-gradient: linear-gradient(135deg, #06b6d4 0%, #7c3aed 100%);
  --card-glow: rgba(6, 182, 212, 0.14);

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.7);
  --shadow-lg: 0 18px 44px rgba(0, 0, 0, 0.9);
  --shadow-reactor: 0 25px 60px -10px rgba(6, 182, 212, 0.35), 0 0 0 1px rgba(45, 56, 82, 0.8);

  --nav-bg: rgba(5, 6, 8, 0.88);
  --badge-bg: rgba(6, 182, 212, 0.12);
  --badge-text: #22d3ee;
}

/* ---------------- 基础排版与重置 ---------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  transition: background-color var(--transition-base), color var(--transition-base);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all var(--transition-fast);
}

ul {
  list-style: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

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

/* ---------------- 容器与布局 ---------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section-alt {
  background-color: var(--bg-alt);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 750;
  font-family: var(--font-mono);
  color: var(--badge-text);
  background: var(--badge-bg);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
  letter-spacing: 1px;
  text-transform: uppercase;
  box-shadow: 0 0 12px var(--plasma-cyan-glow);
}

.section-title {
  font-size: 2.4rem;
  font-weight: 850;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.025em;
}

.section-desc {
  font-size: 1.08rem;
  color: var(--text-secondary);
}

/* ---------------- 顶部导航栏 ---------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-color);
  transition: background var(--transition-base), border-color var(--transition-base);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.35rem;
  font-weight: 850;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.logo-badge {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-armor);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--plasma-cyan);
  box-shadow: 0 0 16px var(--plasma-cyan-glow);
  position: relative;
  overflow: hidden;
}

.logo-badge::after {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(6, 182, 212, 0.3), transparent);
  transform: rotate(45deg);
}

.logo-text span {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 750;
  font-size: 0.96rem;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-secondary);
  position: relative;
  padding: 8px 6px;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--primary-gradient);
  transition: width var(--transition-base), left var(--transition-base);
  border-radius: 2px;
}

.nav-link:hover {
  color: var(--plasma-cyan);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
  left: 0;
}

.nav-link.nav-link-news {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--plasma-cyan);
  font-weight: 700;
}

.nav-link-news-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--plasma-cyan);
  box-shadow: 0 0 8px var(--plasma-cyan);
  animation: pulseNews 2s infinite;
}

@keyframes pulseNews {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.6); opacity: 0.4; }
  100% { transform: scale(1); opacity: 1; }
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* ---------------- 昼夜模式切换按钮（精致磨砂战术透明质感） ---------------- */
.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: rgba(148, 163, 184, 0.12);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text-secondary);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.theme-toggle-btn:hover {
  background: rgba(6, 182, 212, 0.16);
  border-color: var(--plasma-cyan);
  color: var(--plasma-cyan);
  transform: translateY(-1px);
  box-shadow: 0 0 14px var(--plasma-cyan-glow);
}

.theme-icon-sun,
.theme-icon-moon {
  position: absolute;
  width: 20px;
  height: 20px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.theme-icon-sun {
  opacity: 0;
  transform: rotate(90deg) scale(0.6);
}

.theme-icon-moon {
  opacity: 1;
  transform: rotate(0) scale(1);
}

[data-theme="dark"] .theme-icon-sun {
  opacity: 1;
  transform: rotate(0) scale(1);
}

[data-theme="dark"] .theme-icon-moon {
  opacity: 0;
  transform: rotate(-90deg) scale(0.6);
}

/* ---------------- 战术按钮系统 ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 750;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
  letter-spacing: 0.3px;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--primary-gradient);
  color: #ffffff !important;
  box-shadow: 0 4px 18px var(--plasma-cyan-glow);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transform: skewX(-25deg);
  transition: left 0.6s ease;
}

.btn-primary:hover::after {
  left: 150%;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(6, 182, 212, 0.45);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--bg-alt);
  border-color: var(--plasma-cyan);
  color: var(--plasma-cyan);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px var(--card-glow);
}

.btn-lg {
  padding: 15px 34px;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

/* ---------------- HERO 战术装甲区 (Armored-Containment Layout) ---------------- */
.hero {
  padding-top: 146px;
  padding-bottom: 96px;
  position: relative;
  overflow: hidden;
}

.hero-mesh-grid {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(to right, var(--border-color) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border-color) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.2;
  pointer-events: none;
  z-index: 0;
}

.hero-ambient-glow {
  position: absolute;
  top: 15%;
  right: 12%;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, var(--plasma-cyan-glow) 0%, var(--ionized-violet-glow) 40%, transparent 70%);
  filter: blur(70px);
  pointer-events: none;
  z-index: 0;
}

.hero-armored-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 56px;
  position: relative;
  z-index: 1;
}

/* Hero 左侧内容区 */
.hero-tactical-left {
  display: flex;
  flex-direction: column;
}

.hero-tactical-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-armor);
  border-radius: var(--radius-sm);
  color: var(--plasma-cyan);
  font-size: 0.88rem;
  font-weight: 750;
  font-family: var(--font-mono);
  margin-bottom: 24px;
  align-self: flex-start;
  box-shadow: 0 0 16px var(--plasma-cyan-glow);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--plasma-cyan);
  box-shadow: 0 0 8px var(--plasma-cyan);
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0% { opacity: 0.6; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.2); }
  100% { opacity: 0.6; transform: scale(0.9); }
}

.hero-tactical-title {
  font-size: 3.35rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 22px;
}

.hero-tactical-title .brand-accent {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-tactical-title .subtitle-penetration {
  display: block;
  font-size: 2.15rem;
  font-weight: 850;
  color: var(--text-primary);
  margin-top: 8px;
  letter-spacing: 0.02em;
}

.hero-tactical-desc {
  font-size: 1.12rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 28px;
  max-width: 620px;
}

/* Monospace Protocol Specs (等宽协议参数规范) */
.hero-protocol-specs {
  background: var(--bg-surface);
  border-left: 3px solid var(--plasma-cyan);
  border-top: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 14px 18px;
  margin-bottom: 34px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
  box-shadow: var(--shadow-sm);
}

.spec-line {
  display: flex;
  align-items: center;
  gap: 10px;
}

.spec-tag {
  color: var(--plasma-cyan);
  font-weight: 750;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* ==========================================================================
   右侧核心视觉：极致精致 3D Faraday-Shielded Cryptographic Reactor Cube
   ========================================================================== */
.hero-reactor-wrapper {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* 反应堆外框舱体（CNC-milled Titanium Armor Chassis） */
.reactor-chassis {
  width: 100%;
  max-width: 450px;
  background: var(--bg-surface);
  border: 1px solid var(--border-armor);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  box-shadow: var(--shadow-reactor);
  transition: all var(--transition-heavy);
  overflow: hidden;
  cursor: pointer;
}

.reactor-chassis:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: 0 30px 70px -10px var(--plasma-cyan-glow), 0 0 0 1px var(--plasma-cyan);
}

/* 装甲精密六角角栓 (Precision Hex-Socket Allen Bolts) */
.armor-bolt {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--bg-armor) 40%, var(--border-armor) 90%);
  border: 1px solid rgba(0, 0, 0, 0.25);
  box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.6), 0 2px 4px rgba(0, 0, 0, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
}

.armor-bolt::after {
  content: "";
  width: 6px;
  height: 6px;
  background: #111827;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}

.bolt-tl { top: 14px; left: 14px; }
.bolt-tr { top: 14px; right: 14px; }
.bolt-bl { bottom: 14px; left: 14px; }
.bolt-br { bottom: 14px; right: 14px; }

/* 激光雕刻机身铭牌 (Laser-Etched Chassis Tag) */
.reactor-engraving {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-bottom: 12px;
  padding: 0 8px;
  text-transform: uppercase;
}

.engraving-status {
  color: var(--plasma-cyan);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 5px;
}

.engraving-status::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--plasma-cyan);
  box-shadow: 0 0 6px var(--plasma-cyan);
}

/* 纯铜感应汇流排 (Heavy Copper Induction Busbars with Bracket Terminals) */
.copper-busbar-assembly {
  position: relative;
  height: 12px;
  margin: 6px 0;
  display: flex;
  align-items: center;
}

.copper-busbar-bar {
  flex-grow: 1;
  height: 5px;
  background: var(--copper-grad);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.7);
  position: relative;
}

.copper-terminal {
  width: 14px;
  height: 10px;
  background: #b45309;
  border: 1px solid #78350f;
  border-radius: 2px;
  box-shadow: inset 0 1px 1px #fef3c7;
}

/* 核心内舱 (Internal Containment Chamber) */
.containment-core-chamber {
  position: relative;
  height: 290px;
  background: radial-gradient(circle at center, rgba(6, 182, 212, 0.08) 0%, rgba(11, 15, 25, 0.03) 70%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin: 8px 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 垂直液压机械滑轨 (Vertical Hydraulic Guide Rails) */
.hydraulic-rail-left,
.hydraulic-rail-right {
  position: absolute;
  top: 15px;
  bottom: 15px;
  width: 6px;
  background: var(--bg-armor);
  border: 1px solid var(--border-armor);
  border-radius: 3px;
  z-index: 5;
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.3);
}

.hydraulic-rail-left { left: 16px; }
.hydraulic-rail-right { right: 16px; }

/* CNC-Milled Titanium Faraday Louvers (钛合金百叶格栅百叶装甲板) */
.faraday-louvers-stack {
  position: absolute;
  top: 24px;
  bottom: 24px;
  left: 36px;
  right: 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  z-index: 4;
  pointer-events: none;
}

.faraday-louver-slat {
  height: 14px;
  background: var(--titanium-slat);
  border: 1px solid var(--titanium-slat-border);
  border-radius: 3px;
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.25), inset 0 1px 1px rgba(255, 255, 255, 0.6);
  position: relative;
  transition: transform 0.45s cubic-bezier(0.2, 0.9, 0.3, 1), opacity 0.45s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 百叶表面 CNC 散热通气刻槽 */
.faraday-louver-slat::after {
  content: "";
  width: 60%;
  height: 2px;
  background: rgba(0, 0, 0, 0.25);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.2);
}

/* 核心微交互：液压微位移滑开 3mm，展露内部高能等离子 */
.reactor-chassis:hover .faraday-louver-slat:nth-child(odd) {
  transform: translateX(-24px) scaleY(0.7);
  opacity: 0.45;
}

.reactor-chassis:hover .faraday-louver-slat:nth-child(even) {
  transform: translateX(24px) scaleY(0.7);
  opacity: 0.45;
}

/* 等离子反应堆核心球体 (Multilayer Plasma Breach Core) */
.plasma-vortex-reactor {
  position: absolute;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.4) 0%, rgba(124, 58, 237, 0.3) 45%, transparent 75%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  filter: drop-shadow(0 0 28px var(--plasma-cyan));
  animation: coreBreathing 4s ease-in-out infinite alternate;
}

@keyframes coreBreathing {
  0% { transform: scale(0.96); filter: drop-shadow(0 0 20px var(--plasma-cyan)); }
  100% { transform: scale(1.04); filter: drop-shadow(0 0 35px var(--ionized-violet)); }
}

/* 外层旋转刻度环 (HUD Azimuth Gyro Ring) */
.gyro-hud-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 1px dashed var(--plasma-cyan);
  opacity: 0.75;
  animation: rotateClockwise 24s linear infinite;
}

/* 中层反向旋转电离环 */
.ionized-inner-ring {
  position: absolute;
  width: 72%;
  height: 72%;
  border-radius: 50%;
  border: 1.5px solid var(--ionized-violet);
  box-shadow: inset 0 0 18px var(--ionized-violet-glow), 0 0 14px var(--ionized-violet-glow);
  animation: rotateCounter 14s linear infinite;
}

/* 中心全息高能加密锁体 */
.holo-cipher-lock {
  position: relative;
  z-index: 3;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(6, 182, 212, 0.15);
  border: 1.5px solid var(--plasma-cyan);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px var(--plasma-cyan-glow);
}

.holo-cipher-lock svg {
  color: var(--plasma-cyan);
  filter: drop-shadow(0 0 6px var(--plasma-cyan));
}

/* 聚焦等离子激光束 (Focused Cyan-Violet Laser Beam) */
.laser-targeting-beam {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2.5px;
  height: 0;
  background: linear-gradient(180deg, var(--plasma-cyan) 0%, #ffffff 40%, var(--ionized-violet) 100%);
  box-shadow: 0 0 10px var(--plasma-cyan), 0 0 20px var(--ionized-violet);
  transform: translateX(-50%);
  transition: height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 10;
  pointer-events: none;
}

.reactor-chassis:hover .laser-targeting-beam {
  height: 160px;
}

/* 底部军规级 HUD 准星遥测标尺 (Bottom crosshair scale marks "IEPL 专线 24ms") */
.reactor-hud-console {
  margin-top: 14px;
  width: 100%;
  max-width: 450px;
  background: var(--bg-surface);
  border: 1px solid var(--border-armor);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  font-family: var(--font-mono);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.reactor-chassis:hover + .reactor-hud-console,
.reactor-hud-console:hover {
  border-color: var(--plasma-cyan);
  box-shadow: 0 0 18px var(--plasma-cyan-glow);
}

.hud-channel-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.84rem;
  color: var(--text-secondary);
}

.hud-crosshair-icon {
  width: 18px;
  height: 18px;
  color: var(--plasma-cyan);
  animation: rotateCrosshair 10s linear infinite;
}

@keyframes rotateCrosshair {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.hud-telemetry-datum {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.94rem;
  font-weight: 800;
  color: var(--plasma-cyan);
  letter-spacing: 0.5px;
}

.hud-lock-led {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
}

/* ---------------- 3个核心优势图文卡片 ---------------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 38px 30px;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
  position: relative;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--plasma-cyan);
  box-shadow: var(--shadow-lg), 0 0 24px var(--card-glow);
}

.feature-icon-wrapper {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-armor);
  color: var(--plasma-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  box-shadow: 0 0 16px var(--plasma-cyan-glow);
}

.feature-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.feature-desc {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 24px;
  flex-grow: 1;
}

.feature-points {
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
}

.feature-point-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.feature-point-item:last-child {
  margin-bottom: 0;
}

.feature-point-item svg {
  width: 16px;
  height: 16px;
  color: var(--plasma-cyan);
  flex-shrink: 0;
}

/* ---------------- 流媒体与 AI 支持图卡 ---------------- */
.media-ai-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.media-ai-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 42px 36px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
}

.media-ai-card:hover {
  transform: translateY(-4px);
  border-color: var(--plasma-cyan);
  box-shadow: var(--shadow-lg), 0 0 28px var(--card-glow);
}

.media-ai-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
}

.media-ai-badge-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-armor);
}

.icon-streaming {
  background: rgba(239, 68, 68, 0.12);
  color: #ef4444;
}

.icon-ai {
  background: rgba(124, 58, 237, 0.12);
  color: var(--ionized-violet);
}

.media-ai-title {
  font-size: 1.48rem;
  font-weight: 800;
  color: var(--text-primary);
}

.media-ai-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.media-ai-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 28px;
}

.service-chips-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}

.service-chip {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 650;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.service-chip:hover {
  border-color: var(--plasma-cyan);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px var(--plasma-cyan-glow);
}

.chip-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot-red { background: #ef4444; }
.dot-blue { background: #3b82f6; }
.dot-purple { background: var(--ionized-violet); }
.dot-emerald { background: #10b981; }
.dot-amber { background: #f59e0b; }
.dot-cyan { background: var(--plasma-cyan); }

.card-foot-notice {
  margin-top: auto;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  font-size: 0.86rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-foot-notice svg {
  width: 18px;
  height: 18px;
  color: var(--plasma-cyan);
  flex-shrink: 0;
}

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

.pricing-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 36px 26px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-base);
}

.pricing-card:hover {
  transform: translateY(-6px);
  border-color: var(--plasma-cyan);
  box-shadow: var(--shadow-lg), 0 0 25px var(--card-glow);
}

.pricing-card.featured {
  border-color: var(--plasma-cyan);
  box-shadow: var(--shadow-lg), 0 0 28px var(--plasma-cyan-glow);
  transform: scale(1.02);
  z-index: 2;
  background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-surface-elevated) 100%);
}

.pricing-card.featured:hover {
  transform: scale(1.02) translateY(-6px);
}

.pricing-ribbon {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-gradient);
  color: #fff;
  font-size: 0.76rem;
  font-weight: 800;
  padding: 3px 14px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px var(--plasma-cyan-glow);
}

.pricing-tier-name {
  font-size: 1.28rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.pricing-tier-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 22px;
  min-height: 42px;
}

.pricing-price-box {
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.pricing-currency {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
}

.pricing-amount {
  font-size: 2.65rem;
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1;
}

.pricing-period {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-left: 4px;
}

.pricing-save-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 750;
  font-family: var(--font-mono);
  color: #10b981;
  background: rgba(16, 185, 129, 0.12);
  padding: 2px 8px;
  border-radius: 4px;
  margin-top: 6px;
}

.pricing-features-list {
  margin-bottom: 28px;
  flex-grow: 1;
}

.pricing-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.pricing-feature-item svg {
  width: 17px;
  height: 17px;
  color: var(--plasma-cyan);
  flex-shrink: 0;
  margin-top: 2px;
}

.pricing-feature-item.highlight-text {
  color: var(--text-primary);
  font-weight: 700;
}

/* ---------------- 用户评价 ---------------- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.review-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
}

.review-card:hover {
  transform: translateY(-4px);
  border-color: var(--plasma-cyan);
  box-shadow: var(--shadow-md);
}

.review-stars {
  display: flex;
  gap: 4px;
  color: #f59e0b;
  margin-bottom: 16px;
  font-size: 1rem;
}

.review-text {
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 22px;
  flex-grow: 1;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 14px;
  border-top: 1px solid var(--border-color);
  padding-top: 18px;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--bg-armor);
  border: 1px solid var(--border-armor);
  color: var(--plasma-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
}

.author-name {
  font-size: 0.95rem;
  font-weight: 750;
  color: var(--text-primary);
}

.author-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ---------------- 常见问题解答 (FAQ) ---------------- */
.faq-container {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--plasma-cyan);
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  font-size: 1.02rem;
  font-weight: 650;
  color: var(--text-primary);
}

.faq-icon {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--plasma-cyan);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 320px;
  padding: 0 24px 20px;
}

/* ---------------- 底部呼吁横幅 ---------------- */
.cta-banner {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.08) 0%, rgba(124, 58, 237, 0.08) 100%);
  border: 1px solid var(--border-armor);
  border-radius: var(--radius-md);
  padding: 58px 36px;
  text-align: center;
  margin-top: 40px;
  position: relative;
  overflow: hidden;
}

.cta-banner-title {
  font-size: 2.2rem;
  font-weight: 850;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.cta-banner-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 30px;
}

/* ---------------- 页脚 (严格保留四个指定标题) ---------------- */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 44px 0 32px;
  transition: background var(--transition-base), border-color var(--transition-base);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 26px;
}

.footer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  flex-wrap: wrap;
}

.footer-nav-link {
  font-size: 1rem;
  font-weight: 650;
  color: var(--text-secondary);
  padding: 6px 4px;
  position: relative;
  transition: color var(--transition-fast);
}

.footer-nav-link:hover {
  color: var(--plasma-cyan);
}

.footer-copyright {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-copyright a {
  color: var(--text-secondary);
  font-weight: 500;
}

.footer-copyright a:hover {
  color: var(--plasma-cyan);
}

/* ---------------- 子页面与资讯列表通用样式 ---------------- */
.subpage-hero {
  padding-top: 136px;
  padding-bottom: 46px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border-color);
  text-align: center;
}

.subpage-body {
  padding: 56px 0 90px;
}

.doc-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 46px;
  box-shadow: var(--shadow-sm);
  max-width: 920px;
  margin: 0 auto;
}

.doc-section {
  margin-bottom: 38px;
}

.doc-section:last-child {
  margin-bottom: 0;
}

.doc-title {
  font-size: 1.45rem;
  font-weight: 750;
  color: var(--text-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.doc-title::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 20px;
  background: var(--primary-gradient);
  border-radius: 2px;
}

.doc-text {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 14px;
}

.doc-list {
  padding-left: 20px;
  margin-bottom: 16px;
}

.doc-list li {
  list-style: disc;
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 8px;
}

.doc-highlight-box {
  background: var(--bg-surface-elevated);
  border-left: 4px solid var(--plasma-cyan);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 20px;
  margin: 20px 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.doc-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--plasma-cyan);
  margin-bottom: 24px;
}

.doc-back-btn:hover {
  text-decoration: underline;
}

/* 资讯专区卡片列表 */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-top: 12px;
}

.article-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
}

.article-card:hover {
  transform: translateY(-4px);
  border-color: var(--plasma-cyan);
  box-shadow: var(--shadow-lg), 0 0 20px var(--card-glow);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-bottom: 14px;
}

.article-category {
  color: var(--plasma-cyan);
  background: var(--badge-bg);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-weight: 700;
}

.article-title {
  font-size: 1.25rem;
  font-weight: 750;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 12px;
}

.article-summary {
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
}

.article-readmore {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--plasma-cyan);
}

/* ---------------- 响应式媒体查询 (@media) ---------------- */
@media (max-width: 1120px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: translateY(-6px);
  }
}

@media (max-width: 1024px) {
  .hero-armored-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-tactical-left {
    text-align: center;
    align-items: center;
  }
  .hero-tactical-badge {
    align-self: center;
  }
  .hero-protocol-specs {
    border-left: 1px solid var(--border-color);
    border-top: 3px solid var(--plasma-cyan);
    text-align: left;
    width: 100%;
  }
  .hero-actions {
    justify-content: center;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .articles-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }
  .section-title {
    font-size: 1.85rem;
  }
  .hero {
    padding-top: 105px;
    padding-bottom: 50px;
  }
  .hero-tactical-title {
    font-size: 2.25rem;
  }
  .hero-tactical-title .subtitle-penetration {
    font-size: 1.6rem;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
    min-height: 48px;
  }
  .nav-links {
    display: none;
  }
  .features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .media-ai-container {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .service-chips-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .cta-banner {
    padding: 38px 20px;
  }
  .cta-banner-title {
    font-size: 1.65rem;
  }
  .footer-nav {
    flex-direction: column;
    gap: 16px;
  }
  .doc-card {
    padding: 26px 20px;
  }
}

@media (max-width: 480px) {
  .service-chips-grid {
    grid-template-columns: 1fr;
  }
  .reactor-chassis {
    padding: 16px;
  }
  .containment-core-chamber {
    height: 250px;
  }
  .plasma-vortex-reactor {
    width: 150px;
    height: 150px;
  }
}

/* ==========================================================================
   深度 SEO 长篇专栏文章专属样式 (Article Layout & Typography)
   ========================================================================== */
.article-page-layout {
  padding: 130px 0 90px;
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-bottom: 24px;
}

.breadcrumb-link {
  color: var(--text-secondary);
}

.breadcrumb-link:hover {
  color: var(--plasma-cyan);
}

.breadcrumb-separator {
  color: var(--border-armor);
}

.article-header-box {
  margin-bottom: 36px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 28px;
}

.article-main-title {
  font-size: 2.35rem;
  font-weight: 850;
  line-height: 1.3;
  color: var(--text-primary);
  margin: 14px 0 16px;
  letter-spacing: -0.02em;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.86rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.article-tag-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  background: var(--badge-bg);
  border: 1px solid var(--border-glow);
  color: var(--plasma-cyan);
  font-weight: 700;
}

/* 目录面板 (Table of Contents) */
.article-toc-box {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--plasma-cyan);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin: 28px 0 36px;
  box-shadow: var(--shadow-sm);
}

.toc-header-title {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toc-header-title svg {
  color: var(--plasma-cyan);
}

.toc-link-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-left: 4px;
}

.toc-item-link {
  font-size: 0.94rem;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.toc-item-link:hover {
  color: var(--plasma-cyan);
  transform: translateX(4px);
}

/* 文章正文排版 (Post Content Typography) */
.article-post-body {
  font-size: 1.04rem;
  line-height: 1.85;
  color: var(--text-secondary);
}

.article-post-body h2 {
  font-size: 1.68rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 44px 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 10px;
}

.article-post-body h2::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 22px;
  background: var(--primary-gradient);
  border-radius: 2px;
}

.article-post-body h3 {
  font-size: 1.3rem;
  font-weight: 750;
  color: var(--text-primary);
  margin: 28px 0 14px;
}

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

.article-post-body strong {
  color: var(--text-primary);
  font-weight: 700;
}

.article-post-body ul, 
.article-post-body ol {
  padding-left: 24px;
  margin-bottom: 22px;
}

.article-post-body li {
  margin-bottom: 10px;
  line-height: 1.8;
}

/* 高亮内链标签 (Internal SEO Links) */
.seo-internal-link {
  color: var(--plasma-cyan);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: all var(--transition-fast);
}

.seo-internal-link:hover {
  color: var(--ionized-violet);
  text-decoration-thickness: 2px;
}

/* 战术信息呼出框 (Tech Callout Boxes) */
.tech-callout-box {
  background: var(--bg-surface-elevated);
  border-left: 4px solid var(--plasma-cyan);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 18px 22px;
  margin: 26px 0;
  box-shadow: var(--shadow-sm);
  font-size: 0.98rem;
}

.tech-callout-box.highlight-gold {
  border-left-color: #f59e0b;
}

.tech-callout-box.highlight-green {
  border-left-color: #10b981;
}

/* 文章专业技术对比表格 (Technical Comparison Tables) */
.table-responsive-wrapper {
  overflow-x: auto;
  margin: 30px 0;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.article-data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
  background: var(--bg-surface);
}

.article-data-table th,
.article-data-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
}

.article-data-table th {
  background: var(--bg-surface-elevated);
  font-weight: 750;
  color: var(--text-primary);
  font-family: var(--font-mono);
  letter-spacing: 0.3px;
}

.article-data-table tr:last-child td {
  border-bottom: none;
}

.article-data-table tr:hover td {
  background: var(--bg-alt);
}

/* 文章专属 FAQ 板块 */
.article-faq-section {
  margin: 50px 0 40px;
  padding-top: 36px;
  border-top: 2px dashed var(--border-color);
}

.article-faq-title {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 22px;
}

.faq-card-unit {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 22px 26px;
  margin-bottom: 16px;
}

.faq-card-q {
  font-size: 1.06rem;
  font-weight: 750;
  color: var(--text-primary);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.faq-card-q::before {
  content: "Q";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--plasma-cyan);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 800;
  flex-shrink: 0;
}

.faq-card-a {
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 1.75;
  padding-left: 34px;
}

/* 相关深度阅读 (Related Reading Section) */
.article-related-box {
  margin: 50px 0 20px;
  padding-top: 36px;
  border-top: 1px solid var(--border-color);
}

.related-section-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.related-articles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.related-article-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
}

.related-article-card:hover {
  transform: translateY(-3px);
  border-color: var(--plasma-cyan);
  box-shadow: var(--shadow-md);
}

.related-card-title {
  font-size: 1.05rem;
  font-weight: 750;
  color: var(--text-primary);
  line-height: 1.45;
  margin-bottom: 8px;
}

.related-card-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex-grow: 1;
  margin-bottom: 12px;
}

.related-card-action {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--plasma-cyan);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

@media (max-width: 768px) {
  .article-main-title {
    font-size: 1.75rem;
  }
  .related-articles-grid {
    grid-template-columns: 1fr;
  }
  .article-toc-box {
    padding: 18px 20px;
  }
  .faq-card-a {
    padding-left: 0;
    margin-top: 8px;
  }
}