/* ==========================================================================
   微风网络 Breezene.homes - 新野兽主义风格系统 (Neo-Brutalism Design System)
   ========================================================================== */

:root {
  /* 粗野主义高饱和撞色 */
  --bg-primary: #FAF8F5;
  --bg-secondary: #FFFDF9;
  --black: #121212;
  --white: #FFFFFF;
  --yellow: #FFE600;
  --yellow-hover: #FFF04D;
  --pink: #FF3366;
  --pink-light: #FFEBF0;
  --cyan: #00F0FF;
  --cyan-light: #E0FCFF;
  --green: #00E676;
  --green-dark: #00A352;
  --purple: #8B5CF6;
  --purple-light: #EDE9FE;
  --orange: #FF6B00;
  --blue: #2563EB;
  
  /* 边框与阴影规范 */
  --border-thick: 3px solid var(--black);
  --border-heavy: 4px solid var(--black);
  --border-thin: 2px solid var(--black);
  
  /* 硬投影 */
  --shadow-sm: 3px 3px 0 var(--black);
  --shadow-md: 5px 5px 0 var(--black);
  --shadow-lg: 8px 8px 0 var(--black);
  --shadow-xl: 12px 12px 0 var(--black);
  --shadow-hover: 2px 2px 0 var(--black);

  /* 字体系统 */
  --font-heading: 'Syne', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  --font-mono: "JetBrains Mono", Consolas, "Courier New", monospace;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 9999px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--black);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  background-color: var(--bg-primary);
  /* 粗野几何背景点阵与网格 */
  background-image: 
    radial-gradient(#121212 1px, transparent 1px),
    linear-gradient(to right, rgba(0, 0, 0, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.04) 1px, transparent 1px);
  background-size: 24px 24px, 48px 48px, 48px 48px;
  background-position: 0 0, 0 0, 0 0;
  min-height: 100vh;
}

/* 顶部公告跑马灯 */
.announcement-bar {
  background-color: var(--yellow);
  border-bottom: var(--border-thick);
  font-weight: 800;
  font-size: 0.88rem;
  padding: 8px 0;
  overflow: hidden;
  white-space: nowrap;
  position: relative;
  z-index: 1001;
}

.marquee-content {
  display: inline-block;
  animation: marquee 30s linear infinite;
  display: flex;
  gap: 48px;
}

.marquee-content span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

@keyframes marquee {
  0% { transform: translateX(0%); }
  100% { transform: translateX(-50%); }
}

/* 导航栏 */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: var(--border-heavy);
  padding: 14px 0;
}

.container {
  width: 92%;
  max-width: 1240px;
  margin: 0 auto;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--black);
  font-weight: 900;
  font-size: 1.45rem;
  letter-spacing: -0.5px;
}

.logo-badge {
  background-color: var(--yellow);
  border: var(--border-thick);
  padding: 4px 10px;
  font-size: 1.1rem;
  box-shadow: 2px 2px 0 var(--black);
  transform: rotate(-3deg);
  display: inline-block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--black);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 6px 10px;
  border: 2px solid transparent;
  transition: all 0.15s ease;
  position: relative;
}

.nav-links a:hover {
  background-color: var(--yellow);
  border: var(--border-thin);
  box-shadow: 2px 2px 0 var(--black);
  transform: translateY(-2px);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* 新野兽主义按钮体系 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 800;
  font-size: 0.98rem;
  text-decoration: none;
  padding: 10px 22px;
  border: var(--border-thick);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all 0.12s ease;
  user-select: none;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-md);
}

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

.btn-primary {
  background-color: var(--yellow);
  color: var(--black);
}

.btn-primary:hover {
  background-color: var(--yellow-hover);
}

.btn-accent {
  background-color: var(--pink);
  color: var(--white);
}

.btn-accent:hover {
  background-color: #ff1a53;
}

.btn-cyan {
  background-color: var(--cyan);
  color: var(--black);
}

.btn-dark {
  background-color: var(--black);
  color: var(--white);
}

.btn-dark:hover {
  background-color: #262626;
}

.btn-lg {
  padding: 14px 30px;
  font-size: 1.15rem;
  box-shadow: var(--shadow-md);
}

.btn-lg:hover {
  box-shadow: var(--shadow-lg);
}

.mobile-menu-btn {
  display: none;
  background: var(--yellow);
  border: var(--border-thick);
  padding: 8px 12px;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 2px 2px 0 var(--black);
}

/* Hero 首屏 */
.hero {
  padding: 60px 0 70px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--cyan);
  border: var(--border-thick);
  padding: 6px 14px;
  font-weight: 800;
  font-size: 0.88rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
  transform: rotate(-1.5deg);
}

.hero-tag .dot {
  width: 10px;
  height: 10px;
  background-color: var(--pink);
  border-radius: 50%;
  border: 1px solid var(--black);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.9); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.8; }
}

.hero-title {
  font-size: 3.6rem;
  line-height: 1.1;
  font-weight: 900;
  margin-bottom: 20px;
  letter-spacing: -1.5px;
}

.hero-title .highlight-yellow {
  background-color: var(--yellow);
  padding: 2px 10px;
  border: var(--border-thin);
  display: inline-block;
  box-shadow: 3px 3px 0 var(--black);
  transform: rotate(1deg);
}

.hero-title .highlight-pink {
  background-color: var(--pink);
  color: var(--white);
  padding: 2px 10px;
  border: var(--border-thin);
  display: inline-block;
  box-shadow: 3px 3px 0 var(--black);
  transform: rotate(-1.5deg);
}

.hero-desc {
  font-size: 1.18rem;
  color: #333;
  margin-bottom: 32px;
  font-weight: 500;
  max-width: 580px;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
  margin-bottom: 36px;
}

.hero-guarantee {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-weight: 700;
  font-size: 0.9rem;
}

.guarantee-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Hero 右侧拟物/粗野图卡 */
.hero-visual {
  position: relative;
}

.hero-card-main {
  background: var(--white);
  border: var(--border-heavy);
  box-shadow: var(--shadow-xl);
  padding: 28px;
  position: relative;
  z-index: 2;
}

.card-header-dots {
  display: flex;
  gap: 8px;
  padding-bottom: 16px;
  margin-bottom: 20px;
  border-bottom: var(--border-thick);
}

.card-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--black);
}

.card-dot.red { background: #FF5F56; }
.card-dot.yellow { background: #FFBD2E; }
.card-dot.green { background: #27C93F; }

.speed-meter-box {
  background: #0D1117;
  color: #58A6FF;
  border: var(--border-thick);
  padding: 20px;
  font-family: var(--font-mono);
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
}

.speed-meter-title {
  color: #8B949E;
  font-size: 0.82rem;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
}

.speed-meter-value {
  font-size: 2.2rem;
  font-weight: 900;
  color: #39D353;
  line-height: 1.2;
}

.speed-meter-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed #30363D;
  font-size: 0.8rem;
  color: #C9D1D9;
}

.stat-num {
  font-weight: 800;
  color: #FFF;
  display: block;
}

.floating-badge {
  position: absolute;
  background: var(--yellow);
  border: var(--border-thick);
  padding: 10px 18px;
  font-weight: 900;
  box-shadow: var(--shadow-md);
  z-index: 3;
}

.badge-top-right {
  top: -24px;
  right: -20px;
  transform: rotate(8deg);
  background: var(--green);
}

.badge-bottom-left {
  bottom: -20px;
  left: -20px;
  transform: rotate(-6deg);
  background: var(--cyan);
}

/* 动态点缀装饰物 */
.decor-element {
  position: absolute;
  pointer-events: none;
  z-index: 1;
}

.decor-cross {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--black);
  opacity: 0.25;
  animation: spin 20s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* 通用区块排版 */
.section {
  padding: 90px 0;
  position: relative;
  border-top: var(--border-heavy);
}

.section-alt {
  background-color: var(--white);
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 56px;
}

.section-label {
  display: inline-block;
  background-color: var(--yellow);
  border: var(--border-thick);
  padding: 4px 16px;
  font-weight: 900;
  font-size: 0.9rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  box-shadow: var(--shadow-sm);
  margin-bottom: 14px;
  transform: rotate(-1deg);
}

.section-title {
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: #4B5563;
  line-height: 1.6;
}

/* 核心优势板块 */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.advantage-card {
  background: var(--white);
  border: var(--border-heavy);
  box-shadow: var(--shadow-md);
  padding: 32px 26px;
  transition: all 0.15s ease;
  position: relative;
}

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

.advantage-icon {
  width: 58px;
  height: 58px;
  background: var(--yellow);
  border: var(--border-thick);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 22px;
  box-shadow: var(--shadow-sm);
}

.advantage-card:nth-child(2) .advantage-icon { background: var(--cyan); }
.advantage-card:nth-child(3) .advantage-icon { background: var(--pink); color: #fff; }
.advantage-card:nth-child(4) .advantage-icon { background: var(--green); }
.advantage-card:nth-child(5) .advantage-icon { background: var(--purple); color: #fff; }
.advantage-card:nth-child(6) .advantage-icon { background: var(--orange); color: #fff; }

.advantage-title {
  font-size: 1.35rem;
  font-weight: 900;
  margin-bottom: 12px;
}

.advantage-desc {
  font-size: 0.96rem;
  color: #4B5563;
  line-height: 1.65;
}

/* 节点延迟与网络状态监控板块 */
.status-monitor-box {
  background: var(--white);
  border: var(--border-heavy);
  box-shadow: var(--shadow-xl);
  padding: 36px;
}

.monitor-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  padding-bottom: 24px;
  border-bottom: var(--border-thick);
  margin-bottom: 28px;
}

.overall-status {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.15rem;
}

.live-indicator {
  display: inline-block;
  width: 14px;
  height: 14px;
  background-color: var(--green);
  border-radius: 50%;
  border: 2px solid var(--black);
  box-shadow: 0 0 10px var(--green);
  animation: liveBlink 1.8s infinite;
}

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

.test-ping-btn {
  background: var(--cyan);
  border: var(--border-thick);
  padding: 8px 18px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 6px;
}

.test-ping-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: var(--shadow-md);
}

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

.node-item {
  background: var(--bg-primary);
  border: var(--border-thick);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  transition: all 0.15s ease;
}

.node-item:hover {
  background: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.node-flag-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 1.05rem;
}

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

.node-tag {
  background: #E5E7EB;
  border: 1px solid var(--black);
  font-size: 0.72rem;
  font-weight: 800;
  padding: 2px 6px;
}

.node-metrics {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
}

.latency-value {
  font-size: 1.18rem;
  font-weight: 900;
  color: var(--green-dark);
}

.latency-value.medium {
  color: var(--orange);
}

.node-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--black);
}

/* 套餐价格板块 */
.billing-switcher {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 48px;
}

.switch-btn {
  background: var(--white);
  border: var(--border-thick);
  padding: 8px 22px;
  font-weight: 900;
  font-size: 0.95rem;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all 0.1s ease;
}

.switch-btn.active {
  background: var(--yellow);
  box-shadow: var(--shadow-md);
  transform: translate(-2px, -2px);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  align-items: stretch;
}

.pricing-card {
  background: var(--white);
  border: var(--border-heavy);
  box-shadow: var(--shadow-lg);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.2s ease;
}

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

.pricing-card.featured {
  background: #FFFDF0;
  border-width: 5px;
  box-shadow: var(--shadow-xl);
  transform: scale(1.03);
  z-index: 2;
}

.pricing-card.featured:hover {
  transform: scale(1.03) translateY(-6px);
}

.plan-ribbon {
  position: absolute;
  top: -16px;
  right: 20px;
  background: var(--pink);
  color: var(--white);
  border: var(--border-thick);
  font-weight: 900;
  font-size: 0.8rem;
  padding: 4px 14px;
  box-shadow: 2px 2px 0 var(--black);
  transform: rotate(3deg);
}

.plan-header {
  border-bottom: var(--border-thick);
  padding-bottom: 20px;
  margin-bottom: 24px;
}

.plan-title {
  font-size: 1.6rem;
  font-weight: 900;
  margin-bottom: 6px;
}

.plan-subtitle {
  font-size: 0.88rem;
  color: #6B7280;
  font-weight: 600;
}

.plan-price-box {
  margin: 18px 0 10px;
}

.price-currency {
  font-size: 1.5rem;
  font-weight: 900;
}

.price-amount {
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1;
}

.price-period {
  font-size: 0.95rem;
  color: #4B5563;
  font-weight: 700;
}

.plan-features {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
}

.plan-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.45;
}

.plan-features li .check-icon {
  background: var(--green);
  border: 1.5px solid var(--black);
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 900;
  flex-shrink: 0;
  margin-top: 2px;
}

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

.review-card {
  background: var(--white);
  border: var(--border-heavy);
  box-shadow: var(--shadow-md);
  padding: 30px 24px;
  position: relative;
  transition: all 0.15s ease;
}

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

.review-stars {
  color: #F59E0B;
  font-size: 1.25rem;
  margin-bottom: 14px;
  display: flex;
  gap: 2px;
}

.review-content {
  font-size: 0.98rem;
  color: #1F2937;
  font-weight: 600;
  line-height: 1.65;
  margin-bottom: 22px;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 14px;
  border-top: var(--border-thin);
  padding-top: 16px;
}

.author-avatar {
  width: 48px;
  height: 48px;
  background: var(--yellow);
  border: var(--border-thick);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.2rem;
}

.author-info h4 {
  font-size: 1.02rem;
  font-weight: 900;
}

.author-info p {
  font-size: 0.8rem;
  color: #6B7280;
  font-weight: 600;
}

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

.faq-item {
  background: var(--white);
  border: var(--border-heavy);
  box-shadow: var(--shadow-md);
  margin-bottom: 20px;
  transition: all 0.15s ease;
}

.faq-item:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lg);
}

.faq-question {
  padding: 22px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
  font-size: 1.18rem;
  font-weight: 900;
}

.faq-toggle-icon {
  background: var(--yellow);
  border: var(--border-thick);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: 2px 2px 0 var(--black);
  transition: transform 0.2s ease;
}

.faq-item.active .faq-toggle-icon {
  transform: rotate(45deg);
  background: var(--pink);
  color: var(--white);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out;
  border-top: 0px solid var(--black);
  background-color: #FAFAFA;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  border-top: var(--border-thick);
}

.faq-answer-inner {
  padding: 22px 28px;
  font-size: 1rem;
  color: #374151;
  line-height: 1.7;
}

/* 知识库与SEO教程板块 (12篇关键字长文章) */
.kb-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}

.kb-card {
  background: var(--white);
  border: var(--border-heavy);
  box-shadow: var(--shadow-md);
  padding: 26px;
  display: flex;
  flex-direction: column;
  transition: all 0.18s ease;
  position: relative;
}

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

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

.kb-tag {
  background: var(--cyan);
  border: var(--border-thin);
  font-size: 0.76rem;
  font-weight: 800;
  padding: 3px 8px;
  box-shadow: 1px 1px 0 var(--black);
}

.kb-reading-time {
  font-size: 0.78rem;
  color: #6B7280;
  font-weight: 700;
}

.kb-title {
  font-size: 1.25rem;
  font-weight: 900;
  line-height: 1.4;
  margin-bottom: 12px;
}

.kb-title a {
  color: var(--black);
  text-decoration: none;
}

.kb-title a:hover {
  text-decoration: underline;
}

.kb-excerpt {
  font-size: 0.92rem;
  color: #4B5563;
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.kb-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: var(--border-thin);
  padding-top: 14px;
  font-size: 0.88rem;
  font-weight: 800;
}

.read-article-btn {
  background: var(--yellow);
  border: var(--border-thin);
  padding: 6px 14px;
  cursor: pointer;
  font-weight: 800;
  box-shadow: 2px 2px 0 var(--black);
  text-decoration: none;
  color: var(--black);
  transition: all 0.1s ease;
}

.read-article-btn:hover {
  background: var(--yellow-hover);
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 var(--black);
}

/* 文章详情模态阅读框 */
.article-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(5px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.article-modal.active {
  display: flex;
}

.modal-content-wrapper {
  background: var(--white);
  border: 5px solid var(--black);
  box-shadow: 14px 14px 0 var(--black);
  width: 100%;
  max-width: 960px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.modal-top-bar {
  background: var(--yellow);
  border-bottom: var(--border-heavy);
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title-text {
  font-weight: 900;
  font-size: 1.15rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 80%;
}

.close-modal-btn {
  background: var(--pink);
  color: var(--white);
  border: var(--border-thick);
  width: 38px;
  height: 38px;
  font-weight: 900;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 2px 2px 0 var(--black);
}

.close-modal-btn:hover {
  transform: scale(1.05);
}

.modal-scroll-area {
  padding: 40px;
  overflow-y: auto;
  line-height: 1.85;
}

/* 文章正文富文本排版规范 */
.article-body h1 {
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 20px;
  border-bottom: var(--border-heavy);
  padding-bottom: 14px;
}

.article-body h2 {
  font-size: 1.55rem;
  font-weight: 900;
  margin: 32px 0 16px;
  background: var(--yellow);
  display: inline-block;
  padding: 4px 12px;
  border: var(--border-thin);
  box-shadow: 2px 2px 0 var(--black);
}

.article-body h3 {
  font-size: 1.25rem;
  font-weight: 800;
  margin: 24px 0 12px;
  color: #111;
}

.article-body p {
  margin-bottom: 16px;
  font-size: 1.02rem;
  color: #2D3748;
}

.article-body ul, .article-body ol {
  margin: 16px 0 24px 24px;
}

.article-body li {
  margin-bottom: 8px;
  font-size: 1rem;
}

.article-body blockquote {
  background: var(--cyan-light);
  border-left: 6px solid var(--black);
  border-top: var(--border-thin);
  border-right: var(--border-thin);
  border-bottom: var(--border-thin);
  padding: 16px 20px;
  margin: 20px 0;
  font-weight: 600;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  border: var(--border-thick);
}

.article-body th, .article-body td {
  border: var(--border-thin);
  padding: 10px 14px;
  text-align: left;
}

.article-body th {
  background: var(--yellow);
  font-weight: 900;
}

.article-body .article-cta-box {
  background: var(--pink-light);
  border: var(--border-heavy);
  box-shadow: var(--shadow-md);
  padding: 24px;
  text-align: center;
  margin: 36px 0 20px;
}

.article-body .article-cta-box h3 {
  font-size: 1.4rem;
  margin-bottom: 10px;
}

/* 页脚 Footer */
.footer {
  background: var(--black);
  color: var(--white);
  padding: 70px 0 30px;
  border-top: 6px solid var(--black);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 50px;
}

.footer-col h3 {
  font-size: 1.2rem;
  font-weight: 900;
  margin-bottom: 20px;
  color: var(--yellow);
  letter-spacing: 0.5px;
}

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

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: #D1D5DB;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  transition: color 0.15s ease;
}

.footer-col ul li a:hover {
  color: var(--yellow);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.88rem;
  color: #9CA3AF;
}

/* 响应式断点 */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .advantages-grid, .pricing-grid, .reviews-grid, .kb-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .nodes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  .nav-links {
    display: none;
  }
  .mobile-menu-btn {
    display: block;
  }
  .nav-links.mobile-active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: var(--border-heavy);
    padding: 20px;
    gap: 14px;
    box-shadow: var(--shadow-lg);
  }
  .advantages-grid, .pricing-grid, .reviews-grid, .kb-grid, .nodes-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: translateY(-4px);
  }
  .modal-scroll-area {
    padding: 20px;
  }
}