/* ==========================================================================
   NOW 加速 - 波普连环画风 (POP-ART COMIC STRIP) 视觉样式表
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Bangers&family=Comic+Neue:ital,wght@0,400;0,700;1,700&family=Noto+Sans+SC:wght@400;600;800;900&display=swap');

:root {
  /* 经典波普三原色 + 辅色 */
  --pop-red: #FF3333;
  --pop-red-dark: #D61B1B;
  --pop-yellow: #FFE600;
  --pop-yellow-dark: #E5CE00;
  --pop-blue: #0055FF;
  --pop-blue-dark: #0040C0;
  --pop-cyan: #00E5FF;
  --pop-green: #00D26A;
  --pop-orange: #FF7700;
  --pop-purple: #9D00FF;
  
  /* 纸张与油墨黑 */
  --ink-black: #121212;
  --ink-black-rgb: 18, 18, 18;
  --paper-white: #FFFDF4;
  --paper-cream: #F5F1E3;
  --paper-muted: #EAE3D2;
  --panel-border: 4px solid var(--ink-black);
  
  /* 阴影 */
  --pop-shadow-sm: 4px 4px 0px var(--ink-black);
  --pop-shadow: 6px 6px 0px var(--ink-black);
  --pop-shadow-lg: 10px 10px 0px var(--ink-black);
  --pop-shadow-hover: 9px 9px 0px var(--ink-black);
  --pop-shadow-inset: inset 3px 3px 0px rgba(0,0,0,0.15);
  
  /* 字体系统 */
  --font-comic: 'Bangers', cursive, sans-serif;
  --font-bubble: 'Comic Neue', 'Noto Sans SC', cursive, sans-serif;
  --font-body: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* 布局过渡 */
  --comic-transition: all 0.18s cubic-bezier(0.25, 1, 0.5, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--paper-white);
  color: var(--ink-black);
}

body {
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  background-color: var(--paper-white);
  /* 经典波普微型网点底纹 (Ben-Day Dots) */
  background-image: 
    radial-gradient(var(--ink-black) 10%, transparent 11%),
    radial-gradient(var(--ink-black) 10%, transparent 11%);
  background-size: 20px 20px;
  background-position: 0 0, 10px 10px;
  background-attachment: fixed;
  opacity: 0.99;
}

/* 动态背景 Canvas 容器 */
#popCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.85;
}

/* 整体内容层级置于 Canvas 之上 */
.site-wrapper {
  position: relative;
  z-index: 1;
}

/* 链接无下划线 */
a {
  color: inherit;
  text-decoration: none;
}

/* 通用容器 */
.container {
  width: 100%;
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   1. 顶部置顶广告条 & 吸引人特色滚动跑马灯
   ========================================================================== */
.top-ad-banner {
  background: var(--pop-yellow);
  color: var(--ink-black);
  border-bottom: var(--panel-border);
  padding: 10px 0;
  font-weight: 900;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 0px rgba(0,0,0,0.1);
  overflow: hidden;
}

.top-ad-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.top-ad-badge {
  background: var(--pop-red);
  color: #fff;
  padding: 4px 12px;
  border: 2px solid var(--ink-black);
  font-family: var(--font-comic);
  font-size: 1.15rem;
  letter-spacing: 1px;
  box-shadow: 3px 3px 0 var(--ink-black);
  transform: rotate(-2deg);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.top-ad-text {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  font-weight: 800;
}

.top-ad-features {
  display: flex;
  align-items: center;
  gap: 10px;
}

.top-ad-pill {
  background: #fff;
  border: 2px solid var(--ink-black);
  padding: 2px 10px;
  font-size: 0.82rem;
  font-weight: 800;
  box-shadow: 2px 2px 0 var(--ink-black);
  border-radius: 4px;
  white-space: nowrap;
}

/* ==========================================================================
   2. 导航栏 (Comic Nav)
   ========================================================================== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--paper-white);
  border-bottom: var(--panel-border);
  box-shadow: 0 6px 0px var(--ink-black);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  gap: 16px;
  flex-wrap: nowrap;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
  white-space: nowrap;
}

.brand-burst {
  width: 44px;
  height: 44px;
  background: var(--pop-red);
  color: var(--pop-yellow);
  border: 3px solid var(--ink-black);
  box-shadow: 3px 3px 0 var(--ink-black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-comic);
  font-size: 1.4rem;
  font-weight: 900;
  transform: rotate(-6deg);
  position: relative;
  transition: var(--comic-transition);
  flex-shrink: 0;
}

.nav-brand:hover .brand-burst {
  transform: rotate(0deg) scale(1.08);
}

.brand-text {
  display: flex;
  flex-direction: column;
  white-space: nowrap;
}

.brand-title {
  font-family: var(--font-comic);
  font-size: 1.75rem;
  line-height: 1;
  color: var(--ink-black);
  text-shadow: 2px 2px 0 var(--pop-yellow);
  letter-spacing: 1px;
  white-space: nowrap;
}

.brand-sub {
  font-size: 0.7rem;
  font-weight: 900;
  color: var(--pop-red);
  letter-spacing: 1.2px;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  flex-wrap: nowrap;
}

.nav-links li {
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-link {
  font-family: var(--font-bubble);
  font-weight: 700;
  font-size: 0.96rem;
  padding: 6px 10px;
  border: 2px solid transparent;
  border-radius: 6px;
  color: var(--ink-black);
  transition: var(--comic-transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap !important;
  word-break: keep-all !important;
  text-decoration: none;
}

.nav-link:hover {
  background: var(--pop-yellow);
  border-color: var(--ink-black);
  box-shadow: 3px 3px 0 var(--ink-black);
  transform: translate(-2px, -2px);
}

.nav-link.active {
  background: var(--pop-cyan);
  border-color: var(--ink-black);
  box-shadow: 3px 3px 0 var(--ink-black);
}

.nav-cta-btn {
  background: var(--pop-red);
  color: #fff;
  border: 3px solid var(--ink-black);
  padding: 8px 16px;
  font-family: var(--font-comic);
  font-size: 1.2rem;
  letter-spacing: 1px;
  box-shadow: var(--pop-shadow-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: var(--comic-transition);
  text-transform: uppercase;
  border-radius: 6px;
  white-space: nowrap !important;
  word-break: keep-all !important;
  flex-shrink: 0;
}

.nav-cta-btn:hover {
  background: var(--pop-red-dark);
  box-shadow: var(--pop-shadow);
  transform: translate(-3px, -3px);
}

.nav-cta-btn:active {
  box-shadow: 1px 1px 0 var(--ink-black);
  transform: translate(2px, 2px);
}

.mobile-menu-toggle {
  display: none;
  background: var(--pop-yellow);
  border: 3px solid var(--ink-black);
  box-shadow: 3px 3px 0 var(--ink-black);
  font-size: 1.5rem;
  padding: 6px 12px;
  cursor: pointer;
  border-radius: 6px;
}

/* ==========================================================================
   3. 核心 4 格波普连环画板块 (4-PANEL COMIC STRIP HERO)
   ========================================================================== */
.comic-strip-section {
  padding: 48px 0 64px;
}

.comic-header-wrapper {
  text-align: center;
  margin-bottom: 36px;
  position: relative;
}

.comic-series-tag {
  display: inline-block;
  background: var(--pop-cyan);
  color: var(--ink-black);
  border: 3px solid var(--ink-black);
  box-shadow: 4px 4px 0 var(--ink-black);
  padding: 6px 18px;
  font-family: var(--font-comic);
  font-size: 1.3rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  transform: rotate(-1.5deg);
  margin-bottom: 12px;
}

.comic-headline {
  font-family: var(--font-comic);
  font-size: 3.4rem;
  line-height: 1.1;
  color: var(--ink-black);
  letter-spacing: 2px;
  margin-bottom: 12px;
  text-shadow: 4px 4px 0 var(--pop-yellow);
}

.comic-subheadline {
  font-size: 1.25rem;
  font-weight: 700;
  max-width: 800px;
  margin: 0 auto;
  color: #333;
  background: #fff;
  border: 2px solid var(--ink-black);
  padding: 8px 16px;
  box-shadow: 4px 4px 0 var(--ink-black);
  display: inline-block;
}

/* 4格连环画主网格 */
.comic-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  background: var(--paper-cream);
  padding: 24px;
  border: 5px solid var(--ink-black);
  box-shadow: 14px 14px 0 var(--ink-black);
  border-radius: 8px;
  position: relative;
}

/* 漫画书角注标印 */
.comic-grid::before {
  content: "ISSUE #01 · NOW COMICS SPECIAL EDITION";
  position: absolute;
  top: -18px;
  left: 24px;
  background: var(--pop-red);
  color: #fff;
  border: 2px solid var(--ink-black);
  padding: 2px 14px;
  font-family: var(--font-comic);
  font-size: 1rem;
  letter-spacing: 1px;
  box-shadow: 2px 2px 0 var(--ink-black);
}

/* 漫画单格 (Panel) */
.comic-panel {
  position: relative;
  border: 4px solid var(--ink-black);
  box-shadow: var(--pop-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: #fff;
  transition: var(--comic-transition);
  border-radius: 6px;
}

.comic-panel:hover {
  transform: translateY(-4px);
  box-shadow: var(--pop-shadow-hover);
}

.panel-tag-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 14px;
  border-bottom: 3px solid var(--ink-black);
  background: #fff;
  font-weight: 900;
}

.panel-number {
  font-family: var(--font-comic);
  font-size: 1.4rem;
  letter-spacing: 1px;
  color: var(--ink-black);
}

.panel-mood {
  font-size: 0.82rem;
  font-weight: 900;
  padding: 2px 8px;
  border: 1.5px solid var(--ink-black);
  border-radius: 4px;
}

/* 漫画图片展示区 */
.panel-img-box {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-bottom: 3px solid var(--ink-black);
  background-color: #000;
}

.panel-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.comic-panel:hover .panel-img {
  transform: scale(1.03);
}

/* 漫画对话气泡叠加在格子上 */
.comic-bubble-overlay {
  position: absolute;
  bottom: 14px;
  left: 14px;
  right: 14px;
  background: rgba(255, 255, 255, 0.95);
  border: 3px solid var(--ink-black);
  box-shadow: 4px 4px 0 var(--ink-black);
  padding: 10px 14px;
  border-radius: 8px;
  pointer-events: none;
}

.comic-bubble-overlay.shout {
  background: var(--pop-yellow);
  transform: rotate(-1deg);
}

.bubble-dialog {
  font-family: var(--font-bubble);
  font-weight: 800;
  font-size: 1.05rem;
  line-height: 1.35;
  color: var(--ink-black);
}

/* 漫画底部解说框 (Narrative Caption) */
.panel-narrative {
  padding: 16px 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.narrative-title {
  font-family: var(--font-comic);
  font-size: 1.7rem;
  letter-spacing: 1px;
  margin-bottom: 6px;
  line-height: 1.2;
}

.narrative-desc {
  font-size: 0.95rem;
  font-weight: 600;
  color: #333;
  line-height: 1.5;
  margin-bottom: 12px;
}

/* 格子特别风格 */
/* PANEL 1: 亮红背景 */
.panel-red {
  background: #FFF2F2;
}
.panel-red .panel-tag-header {
  background: var(--pop-red);
  color: #fff;
}
.panel-red .panel-number {
  color: #fff;
}
.panel-red .narrative-title {
  color: var(--pop-red);
}

/* PANEL 2: 亮黄背景 */
.panel-yellow {
  background: #FFFFF0;
}
.panel-yellow .panel-tag-header {
  background: var(--pop-yellow);
}
.panel-yellow .narrative-title {
  color: #B38600;
}

/* PANEL 3: 翠绿背景 */
.panel-green {
  background: #F0FFF6;
}
.panel-green .panel-tag-header {
  background: var(--pop-green);
  color: var(--ink-black);
}
.panel-green .narrative-title {
  color: #008744;
}

/* PANEL 4: 高亮蓝背景 + 爆裂按钮 */
.panel-blue {
  background: #F0F6FF;
}
.panel-blue .panel-tag-header {
  background: var(--pop-blue);
  color: #fff;
}
.panel-blue .panel-number {
  color: #fff;
}
.panel-blue .narrative-title {
  color: var(--pop-blue);
}

.panel-cta-btn {
  background: var(--pop-red);
  color: #fff;
  border: 4px solid var(--ink-black);
  padding: 14px 24px;
  font-family: var(--font-comic);
  font-size: 2rem;
  letter-spacing: 2px;
  box-shadow: 6px 6px 0 var(--ink-black);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border-radius: 8px;
  width: 100%;
  text-transform: uppercase;
  transition: var(--comic-transition);
  animation: pulseButton 2s infinite ease-in-out;
}

.panel-cta-btn:hover {
  background: var(--pop-yellow);
  color: var(--ink-black);
  box-shadow: 9px 9px 0 var(--ink-black);
  transform: translate(-3px, -3px);
}

@keyframes pulseButton {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.02);
  }
}

/* ==========================================================================
   4. 节点延迟和状态实时板块 (NODE LATENCY & STATUS BOARD)
   ========================================================================== */
.nodes-section {
  padding: 50px 0 60px;
}

.section-title-wrap {
  text-align: center;
  margin-bottom: 36px;
}

.section-badge {
  display: inline-block;
  background: var(--pop-yellow);
  color: var(--ink-black);
  border: 3px solid var(--ink-black);
  box-shadow: 3px 3px 0 var(--ink-black);
  padding: 4px 14px;
  font-family: var(--font-comic);
  font-size: 1.25rem;
  letter-spacing: 1px;
  margin-bottom: 8px;
  transform: rotate(-1deg);
}

.section-title {
  font-family: var(--font-comic);
  font-size: 2.8rem;
  color: var(--ink-black);
  text-shadow: 3px 3px 0 var(--pop-cyan);
  margin-bottom: 8px;
}

.section-subtitle {
  font-size: 1.05rem;
  font-weight: 700;
  color: #555;
}

.nodes-board {
  background: #fff;
  border: 4px solid var(--ink-black);
  box-shadow: var(--pop-shadow-lg);
  border-radius: 8px;
  overflow: hidden;
}

.nodes-board-header {
  background: var(--ink-black);
  color: #fff;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.board-status-live {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-comic);
  font-size: 1.3rem;
  color: var(--pop-green);
  letter-spacing: 1px;
}

.live-indicator {
  width: 14px;
  height: 14px;
  background: var(--pop-green);
  border: 2px solid #fff;
  border-radius: 50%;
  display: inline-block;
  animation: blinkLive 1.2s infinite;
}

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

.nodes-refresh-btn {
  background: var(--pop-yellow);
  color: var(--ink-black);
  border: 2px solid #fff;
  padding: 6px 16px;
  font-family: var(--font-comic);
  font-size: 1.15rem;
  cursor: pointer;
  box-shadow: 3px 3px 0 rgba(255,255,255,0.4);
  transition: var(--comic-transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.nodes-refresh-btn:hover {
  background: var(--pop-cyan);
  transform: translateY(-2px);
}

.nodes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 24px;
  background: var(--paper-cream);
}

.node-card {
  background: #fff;
  border: 3px solid var(--ink-black);
  box-shadow: var(--pop-shadow-sm);
  padding: 16px;
  border-radius: 6px;
  transition: var(--comic-transition);
  position: relative;
}

.node-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--pop-shadow);
}

.node-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.node-flag-title {
  display: flex;
  align-items: center;
  gap: 8px;
}

.node-flag {
  font-size: 1.8rem;
  line-height: 1;
}

.node-name {
  font-weight: 900;
  font-size: 1.05rem;
  color: var(--ink-black);
}

.node-type-badge {
  background: var(--pop-yellow);
  border: 2px solid var(--ink-black);
  padding: 2px 6px;
  font-size: 0.75rem;
  font-weight: 900;
}

.node-metrics {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  background: #F7F5EB;
  border: 1.5px solid var(--ink-black);
  padding: 8px 12px;
  border-radius: 4px;
}

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

.metric-label {
  font-size: 0.72rem;
  color: #666;
  font-weight: 800;
}

.metric-val {
  font-family: var(--font-comic);
  font-size: 1.35rem;
  color: var(--ink-black);
}

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

.metric-val.loss {
  color: var(--pop-blue);
}

.node-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.node-tag {
  background: #fff;
  border: 1px solid var(--ink-black);
  font-size: 0.72rem;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 3px;
}

/* ==========================================================================
   5. 套餐价格板块 (PRICING TIERS)
   ========================================================================== */
.pricing-section {
  padding: 50px 0 60px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 30px;
}

.pricing-card {
  background: #fff;
  border: 4px solid var(--ink-black);
  box-shadow: var(--pop-shadow);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--comic-transition);
  overflow: hidden;
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--pop-shadow-lg);
}

.pricing-card.featured {
  border-color: var(--ink-black);
  background: #FFFDF0;
  box-shadow: var(--pop-shadow-lg);
  transform: translateY(-8px);
}

.pricing-card.featured:hover {
  transform: translateY(-12px);
  box-shadow: 14px 14px 0 var(--ink-black);
}

.pricing-ribbon {
  background: var(--pop-red);
  color: #fff;
  border-bottom: 3px solid var(--ink-black);
  text-align: center;
  padding: 6px 12px;
  font-family: var(--font-comic);
  font-size: 1.25rem;
  letter-spacing: 1px;
}

.pricing-ribbon.best-value {
  background: var(--pop-orange);
}

.pricing-header {
  padding: 20px 20px 14px;
  text-align: center;
  border-bottom: 2px dashed var(--ink-black);
}

.plan-name {
  font-family: var(--font-comic);
  font-size: 2rem;
  color: var(--ink-black);
  line-height: 1.1;
  margin-bottom: 4px;
}

.plan-tagline {
  font-size: 0.85rem;
  font-weight: 800;
  color: #666;
}

.plan-price-wrap {
  margin-top: 12px;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}

.plan-currency {
  font-family: var(--font-comic);
  font-size: 1.5rem;
  color: var(--pop-red);
}

.plan-price {
  font-family: var(--font-comic);
  font-size: 3.2rem;
  line-height: 1;
  color: var(--pop-red);
  text-shadow: 2px 2px 0 var(--ink-black);
}

.plan-period {
  font-weight: 800;
  font-size: 0.9rem;
  color: #555;
}

.pricing-features {
  padding: 20px;
  list-style: none;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.92rem;
  font-weight: 700;
  color: #222;
  line-height: 1.4;
}

.feature-check {
  color: var(--pop-green);
  font-weight: 900;
  font-size: 1.1rem;
}

.pricing-action {
  padding: 0 20px 20px;
}

.plan-btn {
  width: 100%;
  background: var(--pop-yellow);
  color: var(--ink-black);
  border: 3px solid var(--ink-black);
  padding: 12px;
  font-family: var(--font-comic);
  font-size: 1.5rem;
  letter-spacing: 1px;
  box-shadow: 4px 4px 0 var(--ink-black);
  cursor: pointer;
  text-align: center;
  display: block;
  border-radius: 6px;
  transition: var(--comic-transition);
}

.pricing-card.featured .plan-btn {
  background: var(--pop-red);
  color: #fff;
}

.plan-btn:hover {
  background: var(--pop-cyan);
  color: var(--ink-black);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--ink-black);
}

/* ==========================================================================
   6. 核心优势板块 (CORE ADVANTAGES)
   ========================================================================== */
.advantages-section {
  padding: 50px 0 60px;
}

.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 30px;
}

.adv-card {
  background: #fff;
  border: 4px solid var(--ink-black);
  box-shadow: var(--pop-shadow);
  padding: 24px;
  border-radius: 8px;
  position: relative;
  transition: var(--comic-transition);
}

.adv-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: var(--pop-shadow-lg);
}

.adv-icon-burst {
  width: 60px;
  height: 60px;
  border: 3px solid var(--ink-black);
  box-shadow: 4px 4px 0 var(--ink-black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 16px;
  transform: rotate(-3deg);
  border-radius: 6px;
}

.adv-icon-1 { background: var(--pop-yellow); }
.adv-icon-2 { background: var(--pop-cyan); }
.adv-icon-3 { background: var(--pop-green); }
.adv-icon-4 { background: var(--pop-red); color: #fff; }
.adv-icon-5 { background: var(--pop-orange); }
.adv-icon-6 { background: var(--pop-purple); color: #fff; }

.adv-title {
  font-family: var(--font-comic);
  font-size: 1.7rem;
  color: var(--ink-black);
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.adv-desc {
  font-size: 0.95rem;
  font-weight: 600;
  color: #444;
  line-height: 1.55;
}

/* ==========================================================================
   7. 常见问题板块 (FAQ ACCORDION)
   ========================================================================== */
.faq-section {
  padding: 50px 0 60px;
}

.faq-list {
  max-width: 900px;
  margin: 30px auto 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #fff;
  border: 3.5px solid var(--ink-black);
  box-shadow: var(--pop-shadow-sm);
  border-radius: 8px;
  overflow: hidden;
  transition: var(--comic-transition);
}

.faq-item.active {
  box-shadow: var(--pop-shadow);
}

.faq-question {
  padding: 16px 20px;
  background: #fff;
  font-size: 1.12rem;
  font-weight: 900;
  color: var(--ink-black);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  transition: background 0.15s;
}

.faq-question:hover {
  background: #FFFCE0;
}

.faq-icon {
  font-family: var(--font-comic);
  font-size: 1.6rem;
  width: 32px;
  height: 32px;
  border: 2px solid var(--ink-black);
  background: var(--pop-yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 2px 2px 0 var(--ink-black);
  transition: transform 0.2s;
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--pop-red);
  color: #fff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease;
  background: #FBF9F1;
  border-top: 2px dashed var(--ink-black);
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 18px 20px;
}

.faq-answer p {
  font-size: 0.98rem;
  font-weight: 600;
  color: #333;
  line-height: 1.6;
}

/* ==========================================================================
   8. 独立知识库与教程板块入口横幅 (KNOWLEDGE BASE BANNER ENTRY)
   用户特别要求：知识库与教程板块不要出现在首页，单独划一个板块，做好内部跳转
   ========================================================================== */
.kb-entry-section {
  padding: 40px 0 60px;
}

.kb-banner-card {
  background: var(--pop-yellow);
  border: 5px solid var(--ink-black);
  box-shadow: var(--pop-shadow-lg);
  border-radius: 12px;
  padding: 36px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  position: relative;
  overflow: hidden;
}

.kb-banner-card::after {
  content: "KNOWLEDGE HUB";
  position: absolute;
  right: -20px;
  bottom: -20px;
  font-family: var(--font-comic);
  font-size: 5rem;
  color: rgba(0,0,0,0.05);
  pointer-events: none;
  font-weight: 900;
}

.kb-banner-content {
  flex: 1;
}

.kb-banner-tag {
  background: var(--pop-red);
  color: #fff;
  border: 2px solid var(--ink-black);
  padding: 4px 12px;
  font-family: var(--font-comic);
  font-size: 1.15rem;
  letter-spacing: 1px;
  display: inline-block;
  box-shadow: 3px 3px 0 var(--ink-black);
  transform: rotate(-2deg);
  margin-bottom: 12px;
}

.kb-banner-title {
  font-family: var(--font-comic);
  font-size: 2.6rem;
  color: var(--ink-black);
  margin-bottom: 8px;
  letter-spacing: 1px;
  line-height: 1.1;
}

.kb-banner-desc {
  font-size: 1.05rem;
  font-weight: 700;
  color: #222;
  max-width: 680px;
  line-height: 1.5;
}

.kb-banner-action {
  flex-shrink: 0;
}

.kb-hub-btn {
  background: var(--pop-blue);
  color: #fff;
  border: 4px solid var(--ink-black);
  box-shadow: 6px 6px 0 var(--ink-black);
  padding: 16px 32px;
  font-family: var(--font-comic);
  font-size: 1.7rem;
  letter-spacing: 1px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-radius: 8px;
  transition: var(--comic-transition);
}

.kb-hub-btn:hover {
  background: var(--pop-cyan);
  color: var(--ink-black);
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 var(--ink-black);
}

/* ==========================================================================
   9. 用户评价板块 (USER REVIEWS - COMIC BUBBLE STYLE)
   ========================================================================== */
.reviews-section {
  padding: 50px 0 70px;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 30px;
}

.review-comic-card {
  background: #fff;
  border: 4px solid var(--ink-black);
  box-shadow: var(--pop-shadow);
  padding: 24px;
  border-radius: 8px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: var(--comic-transition);
}

.review-comic-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--pop-shadow-lg);
}

.review-speech-bubble {
  background: #FDFCE8;
  border: 3px solid var(--ink-black);
  padding: 16px;
  border-radius: 8px;
  position: relative;
  margin-bottom: 20px;
  box-shadow: 3px 3px 0 rgba(0,0,0,0.1);
  flex: 1;
}

.review-speech-bubble::after {
  content: "";
  position: absolute;
  bottom: -14px;
  left: 28px;
  border-width: 14px 14px 0 0;
  border-style: solid;
  border-color: #FDFCE8 transparent;
  display: block;
  width: 0;
}

.review-speech-bubble::before {
  content: "";
  position: absolute;
  bottom: -18px;
  left: 26px;
  border-width: 16px 16px 0 0;
  border-style: solid;
  border-color: var(--ink-black) transparent;
  display: block;
  width: 0;
}

.review-text {
  font-family: var(--font-bubble);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--ink-black);
}

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

.user-avatar-badge {
  width: 48px;
  height: 48px;
  border: 2.5px solid var(--ink-black);
  box-shadow: 3px 3px 0 var(--ink-black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  border-radius: 50%;
  background: var(--pop-yellow);
}

.user-meta {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-weight: 900;
  font-size: 1rem;
  color: var(--ink-black);
}

.user-role {
  font-size: 0.8rem;
  font-weight: 700;
  color: #666;
}

.user-stars {
  color: #FFAA00;
  font-size: 0.95rem;
  margin-top: 2px;
}

/* ==========================================================================
   10. 页脚 (FOOTER) - 符合要求：不展示网站地图和robots.txt
   ========================================================================== */
.comic-footer {
  background: var(--ink-black);
  color: #fff;
  border-top: 5px solid var(--ink-black);
  padding: 48px 0 24px;
  position: relative;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 36px;
  border-bottom: 2px dashed #444;
}

.footer-brand-wrap {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-brand-title {
  font-family: var(--font-comic);
  font-size: 2.4rem;
  color: var(--pop-yellow);
  letter-spacing: 1px;
}

.footer-brand-desc {
  font-size: 0.95rem;
  color: #ccc;
  line-height: 1.6;
  max-width: 480px;
}

.footer-col-title {
  font-family: var(--font-comic);
  font-size: 1.5rem;
  color: var(--pop-cyan);
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-link {
  font-weight: 700;
  font-size: 0.95rem;
  color: #bbb;
  transition: color 0.15s;
}

.footer-link:hover {
  color: var(--pop-yellow);
}

.footer-bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: #888;
}

.footer-copyright {
  font-weight: 600;
}

/* ==========================================================================
   11. 呼出式极速购买面板 (COMIC MODAL)
   ========================================================================== */
.comic-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.comic-modal-overlay.open {
  display: flex;
}

.comic-modal-dialog {
  background: #FFFDF2;
  border: 5px solid var(--ink-black);
  box-shadow: 14px 14px 0 var(--ink-black);
  border-radius: 12px;
  width: 100%;
  max-width: 600px;
  position: relative;
  animation: modalPop 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  overflow: hidden;
}

@keyframes modalPop {
  0% { transform: scale(0.7) rotate(-3deg); opacity: 0; }
  100% { transform: scale(1) rotate(0deg); opacity: 1; }
}

.modal-header-comic {
  background: var(--pop-red);
  color: #fff;
  border-bottom: 4px solid var(--ink-black);
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title-comic {
  font-family: var(--font-comic);
  font-size: 2rem;
  letter-spacing: 1px;
}

.modal-close-btn {
  background: var(--pop-yellow);
  color: var(--ink-black);
  border: 2.5px solid var(--ink-black);
  font-family: var(--font-comic);
  font-size: 1.5rem;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 3px 3px 0 var(--ink-black);
  border-radius: 4px;
}

.modal-body-comic {
  padding: 24px;
}

.modal-highlight-box {
  background: var(--pop-yellow);
  border: 3px solid var(--ink-black);
  padding: 14px;
  box-shadow: 4px 4px 0 var(--ink-black);
  margin-bottom: 20px;
  text-align: center;
}

.modal-hl-title {
  font-family: var(--font-comic);
  font-size: 1.6rem;
  color: var(--ink-black);
}

.modal-hl-desc {
  font-weight: 800;
  font-size: 0.95rem;
}

.modal-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}

.modal-features-list li {
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-buy-btn {
  background: var(--pop-green);
  color: var(--ink-black);
  border: 4px solid var(--ink-black);
  box-shadow: 6px 6px 0 var(--ink-black);
  padding: 16px;
  font-family: var(--font-comic);
  font-size: 2.1rem;
  letter-spacing: 2px;
  text-align: center;
  display: block;
  border-radius: 8px;
  text-transform: uppercase;
  transition: var(--comic-transition);
}

.modal-buy-btn:hover {
  background: var(--pop-cyan);
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 var(--ink-black);
}

/* ==========================================================================
   12. 响应式布局优化 (RESPONSIVE STYLES)
   ========================================================================== */
@media (max-width: 1240px) {
  .nav-inner {
    gap: 8px;
  }
  .brand-title {
    font-size: 1.55rem;
  }
  .nav-link {
    font-size: 0.88rem;
    padding: 5px 7px;
    gap: 3px;
  }
  .nav-cta-btn {
    font-size: 1.1rem;
    padding: 7px 12px;
  }
}

@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .adv-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .nodes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .nav-links {
    display: none;
  }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper-white);
    border-bottom: var(--panel-border);
    padding: 16px;
    box-shadow: 0 8px 0 var(--ink-black);
    gap: 8px;
    align-items: stretch;
  }
  .nav-links.open li {
    width: 100%;
  }
  .nav-links.open .nav-link {
    width: 100%;
    padding: 10px 14px;
    font-size: 1.05rem;
  }
  .mobile-menu-toggle {
    display: block;
  }
}

@media (max-width: 768px) {
  .comic-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 16px;
  }
  .comic-headline {
    font-size: 2.4rem;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .adv-grid {
    grid-template-columns: 1fr;
  }
  .nodes-grid {
    grid-template-columns: 1fr;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .kb-banner-card {
    flex-direction: column;
    text-align: center;
    padding: 24px;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .top-ad-features {
    display: none;
  }
}