/* 灯塔加速官网 - 像素仙侠 & 8-bit 复古浅色系主题样式表 */
@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&family=Noto+Sans+SC:wght@400;500;700;900&display=swap');

:root {
  --bg-main: #f5f8f5;
  --bg-card: #ffffff;
  --bg-subtle: #ebf3ec;
  --text-main: #19261e;
  --text-muted: #52665a;
  --text-dim: #7d9385;
  --border-color: #19261e;
  
  /* 仙侠 8-bit 主色调 */
  --primary: #059669;
  --primary-light: #10b981;
  --primary-bg: #e6f7ef;
  --gold: #d97706;
  --gold-light: #fbbf24;
  --gold-bg: #fef3c7;
  --crimson: #e11d48;
  --crimson-bg: #ffe4e6;
  --blue: #0284c7;
  --blue-bg: #e0f2fe;
  --purple: #7c3aed;
  --purple-bg: #f3e8ff;

  --pixel-shadow: 4px 4px 0px var(--border-color);
  --pixel-shadow-sm: 2px 2px 0px var(--border-color);
  --pixel-shadow-lg: 6px 6px 0px var(--border-color);
  --pixel-shadow-hover: 2px 2px 0px var(--border-color);

  --font-pixel: 'Press Start 2P', monospace, cursive;
  --font-sans: 'Noto Sans SC', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(#c8ded0 1.5px, transparent 1.5px),
    linear-gradient(to bottom, rgba(245,248,245,0.7), rgba(235,243,236,0.9));
  background-size: 20px 20px, 100% 100%;
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* 像素画质平滑处理 */
img, svg, canvas {
  image-rendering: pixelated;
}

/* 顶部公告条 */
.top-announcement {
  background: var(--gold-bg);
  border-bottom: 2px solid var(--border-color);
  padding: 6px 12px;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
}
.top-announcement .badge-pixel {
  background: var(--gold);
  color: #fff;
  padding: 2px 6px;
  font-size: 0.7rem;
  border: 1px solid var(--border-color);
}

/* 导航栏 */
.pixel-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 3px solid var(--border-color);
  box-shadow: 0 4px 0 rgba(25, 38, 30, 0.08);
}
.nav-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
}
.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-bg);
  border: 2px solid var(--border-color);
  box-shadow: var(--pixel-shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}
.brand-name {
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: -0.5px;
  display: flex;
  flex-direction: column;
}
.brand-sub {
  font-size: 0.65rem;
  font-family: var(--font-pixel);
  color: var(--primary);
  margin-top: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 16px;
}
.nav-links a {
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
  font-size: 0.92rem;
  padding: 6px 10px;
  border: 2px solid transparent;
  transition: all 0.15s ease;
  position: relative;
}
.nav-links a:hover, .nav-links a.active {
  background: var(--primary-bg);
  border-color: var(--border-color);
  box-shadow: var(--pixel-shadow-sm);
  color: var(--primary);
  transform: translate(-1px, -1px);
}

.nav-cta-btn {
  background: var(--primary);
  color: #ffffff !important;
  font-weight: 800 !important;
  border: 2px solid var(--border-color) !important;
  box-shadow: var(--pixel-shadow-sm) !important;
  padding: 7px 14px !important;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}
.nav-cta-btn:hover {
  background: var(--primary-light) !important;
  transform: translate(1px, 1px) !important;
  box-shadow: none !important;
}

/* 移动端菜单开关 */
.menu-toggle {
  display: none;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  padding: 6px 10px;
  cursor: pointer;
  font-size: 1.2rem;
}

/* 按钮通用像素样式 */
.btn-pixel {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  font-weight: 800;
  font-size: 1rem;
  padding: 12px 24px;
  border: 3px solid var(--border-color);
  box-shadow: var(--pixel-shadow);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}
.btn-pixel:active, .btn-pixel:hover {
  transform: translate(2px, 2px);
  box-shadow: var(--pixel-shadow-hover);
}
.btn-primary {
  background: var(--primary);
  color: #ffffff;
}
.btn-primary:hover {
  background: var(--primary-light);
}
.btn-gold {
  background: var(--gold);
  color: #ffffff;
}
.btn-gold:hover {
  background: var(--gold-light);
}
.btn-secondary {
  background: #ffffff;
  color: var(--text-main);
}
.btn-secondary:hover {
  background: var(--bg-subtle);
}

/* 像素卡片容器通用 */
.pixel-card {
  background: var(--bg-card);
  border: 3px solid var(--border-color);
  box-shadow: var(--pixel-shadow);
  padding: 24px;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.pixel-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--pixel-shadow-lg);
}

/* 动态背景画布 */
#pixel-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 640px;
  pointer-events: none;
  z-index: 1;
}

/* Hero 首屏 */
.hero-section {
  position: relative;
  padding: 70px 20px 80px;
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 40px;
  z-index: 2;
}
.hero-content {
  position: relative;
  z-index: 3;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gold-bg);
  border: 2px solid var(--border-color);
  padding: 4px 12px;
  font-size: 0.85rem;
  font-weight: 800;
  margin-bottom: 20px;
  box-shadow: var(--pixel-shadow-sm);
}
.hero-tag .sparkle {
  color: var(--gold);
  font-size: 1rem;
}
.hero-title {
  font-size: 2.85rem;
  line-height: 1.25;
  font-weight: 900;
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.hero-title .highlight-text {
  color: var(--primary);
  background: var(--primary-bg);
  padding: 0 8px;
  display: inline-block;
  border-bottom: 4px solid var(--primary);
}
.hero-desc {
  font-size: 1.12rem;
  color: var(--text-muted);
  margin-bottom: 30px;
  max-width: 620px;
}
.hero-action-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 35px;
}
.hero-guarantee {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 700;
}
.hero-guarantee span {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Hero 右侧 8-bit 仙侠动画视窗 */
.hero-visual {
  position: relative;
  z-index: 3;
}
.visual-frame {
  background: #ffffff;
  border: 4px solid var(--border-color);
  box-shadow: var(--pixel-shadow-lg);
  padding: 18px;
}
.frame-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 10px;
  margin-bottom: 16px;
  font-family: var(--font-pixel);
  font-size: 0.75rem;
}
.pixel-dots {
  display: flex;
  gap: 6px;
}
.pixel-dot {
  width: 10px;
  height: 10px;
  border: 1px solid var(--border-color);
}
.pixel-dot.red { background: var(--crimson); }
.pixel-dot.yellow { background: var(--gold); }
.pixel-dot.green { background: var(--primary); }

.game-stage {
  height: 290px;
  background: linear-gradient(180deg, #dcfce7 0%, #bbf7d0 60%, #86efac 100%);
  border: 2px solid var(--border-color);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 16px;
}
.stage-sky {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.pixel-cloud {
  background: #ffffff;
  border: 2px solid var(--border-color);
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 800;
  box-shadow: var(--pixel-shadow-sm);
  animation: floatCloud 6s infinite ease-in-out;
}
@keyframes floatCloud {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

.pixel-flying-sword {
  position: absolute;
  top: 35%;
  left: -60px;
  animation: swordFly 7s infinite linear;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 1.4rem;
}
@keyframes swordFly {
  0% { left: -60px; transform: scaleX(1); }
  50% { left: 110%; transform: scaleX(1); }
  51% { left: 110%; transform: scaleX(-1); }
  100% { left: -60px; transform: scaleX(-1); }
}

.stage-tower {
  align-self: center;
  text-align: center;
  margin-top: 10px;
}
.tower-beacon {
  width: 16px;
  height: 16px;
  background: #fde047;
  border: 2px solid var(--border-color);
  margin: 0 auto;
  box-shadow: 0 0 15px #fde047;
  animation: beaconPulse 1.5s infinite alternate;
}
@keyframes beaconPulse {
  0% { transform: scale(1); filter: brightness(1); }
  100% { transform: scale(1.3); filter: brightness(1.5); }
}
.tower-body {
  width: 60px;
  height: 70px;
  background: #334155;
  border: 2px solid var(--border-color);
  margin: 0 auto;
  position: relative;
}
.tower-body::before {
  content: "灯塔";
  position: absolute;
  top: 18px;
  left: 0;
  width: 100%;
  color: #f8fafc;
  font-size: 0.75rem;
  font-weight: 900;
}
.stage-ground {
  height: 36px;
  background: #15803d;
  border-top: 3px solid #166534;
  margin: -16px;
  margin-top: 0;
  display: flex;
  align-items: center;
  justify-content: space-around;
  color: #bbf7d0;
  font-size: 0.75rem;
}

.stage-hud {
  margin-top: 14px;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-pixel);
  font-size: 0.7rem;
  background: var(--bg-subtle);
  padding: 8px 12px;
  border: 2px solid var(--border-color);
}
.hud-item {
  display: flex;
  align-items: center;
  gap: 6px;
}
.hud-ping {
  color: var(--primary);
  font-weight: bold;
}

/* 区块通用结构 */
.section-wrapper {
  padding: 70px 20px;
  max-width: 1240px;
  margin: 0 auto;
}
.section-header {
  text-align: center;
  margin-bottom: 50px;
  position: relative;
}
.section-badge {
  display: inline-block;
  font-family: var(--font-pixel);
  font-size: 0.75rem;
  color: var(--primary);
  background: var(--primary-bg);
  border: 2px solid var(--border-color);
  padding: 4px 10px;
  margin-bottom: 12px;
  box-shadow: var(--pixel-shadow-sm);
}
.section-title {
  font-size: 2.2rem;
  font-weight: 900;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
}

/* 核心优势板块 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 24px;
}
.feature-card {
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.feature-icon-wrapper {
  width: 54px;
  height: 54px;
  border: 3px solid var(--border-color);
  box-shadow: var(--pixel-shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 18px;
}
.feature-title {
  font-size: 1.25rem;
  font-weight: 900;
  margin-bottom: 10px;
}
.feature-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.feature-tag {
  align-self: flex-start;
  margin-top: 18px;
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  padding: 3px 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-subtle);
}

/* 节点延迟和状态板块 */
.status-board {
  background: #ffffff;
  border: 3px solid var(--border-color);
  box-shadow: var(--pixel-shadow-lg);
  padding: 24px;
}
.status-header-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  border-bottom: 3px solid var(--border-color);
  padding-bottom: 16px;
  margin-bottom: 20px;
  gap: 16px;
}
.status-summary {
  display: flex;
  gap: 20px;
}
.summary-stat {
  display: flex;
  flex-direction: column;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 700;
}
.stat-value {
  font-family: var(--font-pixel);
  font-size: 1.15rem;
  color: var(--primary);
}

.nodes-table-container {
  overflow-x: auto;
}
.nodes-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 10px;
}
.nodes-table th {
  text-align: left;
  padding: 10px 14px;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 800;
  border-bottom: 2px solid var(--border-color);
}
.node-row {
  background: var(--bg-main);
  border: 2px solid var(--border-color);
  transition: all 0.15s ease;
}
.node-row:hover {
  background: var(--primary-bg);
  transform: translateX(4px);
}
.node-row td {
  padding: 14px;
  border-top: 2px solid var(--border-color);
  border-bottom: 2px solid var(--border-color);
  font-weight: 700;
  font-size: 0.95rem;
}
.node-row td:first-child {
  border-left: 2px solid var(--border-color);
}
.node-row td:last-child {
  border-right: 2px solid var(--border-color);
}
.node-name {
  display: flex;
  align-items: center;
  gap: 10px;
}
.node-flag {
  font-size: 1.25rem;
}
.node-type-pill {
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  padding: 2px 6px;
  border: 1px solid var(--border-color);
  background: #ffffff;
}
.ping-badge {
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.ping-indicator {
  width: 8px;
  height: 8px;
  background: var(--primary);
  display: inline-block;
  animation: blink 1s infinite alternate;
}
@keyframes blink {
  from { opacity: 0.3; }
  to { opacity: 1; }
}
.status-pill-online {
  background: #dcfce7;
  color: #15803d;
  border: 1px solid var(--border-color);
  padding: 3px 8px;
  font-size: 0.75rem;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* 套餐价格板块 */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.pricing-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 28px 22px;
  position: relative;
}
.pricing-card.popular {
  border-width: 4px;
  background: #ffffff;
  transform: translateY(-8px);
}
.popular-banner {
  position: absolute;
  top: -16px;
  right: 18px;
  background: var(--crimson);
  color: #ffffff;
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  padding: 4px 10px;
  border: 2px solid var(--border-color);
  box-shadow: var(--pixel-shadow-sm);
}
.plan-level {
  font-family: var(--font-pixel);
  font-size: 0.75rem;
  color: var(--primary);
  margin-bottom: 8px;
}
.plan-name {
  font-size: 1.5rem;
  font-weight: 900;
  margin-bottom: 12px;
}
.plan-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 2px dashed var(--border-color);
}
.price-currency {
  font-size: 1.25rem;
  font-weight: 900;
}
.price-amount {
  font-size: 2.5rem;
  font-weight: 900;
  font-family: var(--font-pixel);
  color: var(--primary);
}
.price-period {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 700;
}
.plan-features {
  list-style: none;
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-grow: 1;
}
.plan-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
  font-weight: 600;
}
.check-icon {
  color: var(--primary);
  font-weight: 900;
}

/* 用户评价板块 */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.review-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.review-quote {
  font-size: 0.98rem;
  line-height: 1.65;
  color: var(--text-main);
  margin-bottom: 20px;
  position: relative;
}
.review-quote::before {
  content: "“";
  font-size: 2rem;
  color: var(--primary);
  display: block;
  height: 20px;
  line-height: 1;
}
.reviewer-profile {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 2px solid var(--border-color);
  padding-top: 14px;
}
.reviewer-avatar {
  width: 44px;
  height: 44px;
  border: 2px solid var(--border-color);
  background: var(--bg-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: var(--pixel-shadow-sm);
}
.reviewer-info {
  display: flex;
  flex-direction: column;
}
.reviewer-name {
  font-weight: 900;
  font-size: 0.95rem;
}
.reviewer-title {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.review-stars {
  color: var(--gold);
  font-size: 0.85rem;
  margin-left: auto;
}

/* 常见问题板块 */
.faq-container {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: #ffffff;
  border: 3px solid var(--border-color);
  box-shadow: var(--pixel-shadow);
  overflow: hidden;
  transition: all 0.15s ease;
}
.faq-question {
  padding: 18px 22px;
  font-weight: 800;
  font-size: 1.08rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  background: #ffffff;
}
.faq-question:hover {
  background: var(--bg-subtle);
}
.faq-arrow {
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  transition: transform 0.2s ease;
}
.faq-item.open .faq-arrow {
  transform: rotate(90deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
  padding: 0 22px;
  background: var(--bg-main);
  border-top: 0 solid var(--border-color);
}
.faq-item.open .faq-answer {
  max-height: 400px;
  padding: 18px 22px;
  border-top: 2px solid var(--border-color);
  line-height: 1.7;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* 知识库板块 */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 26px;
}
.article-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 24px;
}
.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.article-category {
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  padding: 3px 8px;
  border: 1px solid var(--border-color);
  background: var(--primary-bg);
  color: var(--primary);
  font-weight: 700;
}
.article-date {
  font-size: 0.78rem;
  color: var(--text-dim);
}
.article-card-title {
  font-size: 1.22rem;
  font-weight: 900;
  margin-bottom: 12px;
  line-height: 1.4;
}
.article-card-title a {
  text-decoration: none;
  color: var(--text-main);
  transition: color 0.15s ease;
}
.article-card-title a:hover {
  color: var(--primary);
}
.article-card-excerpt {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}
.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 2px dashed var(--border-color);
  padding-top: 14px;
}
.read-more-link {
  font-weight: 800;
  font-size: 0.88rem;
  color: var(--primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.read-more-link:hover {
  text-decoration: underline;
}
.word-count {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-family: var(--font-pixel);
}

/* 底部 CTA 区域 */
.cta-banner-section {
  padding: 60px 20px;
  max-width: 1240px;
  margin: 0 auto 60px;
}
.cta-banner {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  border: 4px solid var(--border-color);
  box-shadow: var(--pixel-shadow-lg);
  padding: 48px 30px;
  text-align: center;
  color: #ffffff;
  position: relative;
  overflow: hidden;
}
.cta-banner h2 {
  font-size: 2.4rem;
  font-weight: 900;
  margin-bottom: 14px;
  color: #ffffff;
}
.cta-banner p {
  font-size: 1.15rem;
  max-width: 660px;
  margin: 0 auto 30px;
  color: #ecfdf5;
}
.cta-banner-btn {
  background: #ffffff !important;
  color: var(--text-main) !important;
  font-size: 1.15rem !important;
  padding: 14px 32px !important;
}
.cta-banner-btn:hover {
  background: var(--gold-bg) !important;
  color: var(--gold) !important;
}

/* 页脚 */
.pixel-footer {
  background: #ffffff;
  border-top: 3px solid var(--border-color);
  padding: 50px 20px 30px;
}
.footer-container {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand p {
  margin-top: 14px;
  font-size: 0.9rem;
  color: var(--text-muted);
  max-width: 320px;
}
.footer-col h4 {
  font-size: 1.05rem;
  font-weight: 900;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}
.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 3px;
  background: var(--primary);
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  transition: color 0.15s ease;
}
.footer-links a:hover {
  color: var(--primary);
  text-decoration: underline;
}
.footer-bottom {
  max-width: 1240px;
  margin: 0 auto;
  border-top: 2px solid var(--border-color);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-dim);
  gap: 12px;
}

/* 文章详情页专用样式 */
.article-page-body {
  background-color: var(--bg-main);
}
.article-layout {
  max-width: 1100px;
  margin: 40px auto 70px;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}
.article-main-content {
  background: #ffffff;
  border: 3px solid var(--border-color);
  box-shadow: var(--pixel-shadow);
  padding: 40px;
}
.article-header {
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 24px;
  margin-bottom: 30px;
}
.article-breadcrumbs {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 14px;
  display: flex;
  gap: 8px;
  align-items: center;
}
.article-breadcrumbs a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 700;
}
.article-h1 {
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 16px;
}
.article-info-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.article-content {
  font-size: 1.05rem;
  line-height: 1.85;
  color: #243329;
}
.article-content h2 {
  font-size: 1.55rem;
  font-weight: 900;
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border-color);
  color: var(--text-main);
  position: relative;
}
.article-content h2::before {
  content: "▶";
  font-size: 0.9rem;
  color: var(--primary);
  margin-right: 8px;
}
.article-content h3 {
  font-size: 1.25rem;
  font-weight: 800;
  margin: 24px 0 12px;
  color: var(--primary);
}
.article-content p {
  margin-bottom: 18px;
}
.article-content ul, .article-content ol {
  margin-bottom: 20px;
  padding-left: 26px;
}
.article-content li {
  margin-bottom: 8px;
}
.article-content blockquote {
  background: var(--bg-subtle);
  border-left: 4px solid var(--primary);
  padding: 16px 20px;
  margin: 24px 0;
  font-style: italic;
  font-weight: 500;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.92rem;
}
.article-content th, .article-content td {
  border: 1px solid var(--border-color);
  padding: 10px 14px;
}
.article-content th {
  background: var(--primary-bg);
  font-weight: 800;
}
.article-content pre {
  background: #1e293b;
  color: #f8fafc;
  padding: 18px;
  border: 2px solid var(--border-color);
  overflow-x: auto;
  font-family: monospace;
  font-size: 0.9rem;
  margin: 20px 0;
}
.article-content a {
  color: var(--primary);
  text-decoration: underline;
  font-weight: 700;
}

.article-sidebar {
  position: sticky;
  top: 90px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.sidebar-box {
  background: #ffffff;
  border: 3px solid var(--border-color);
  box-shadow: var(--pixel-shadow);
  padding: 20px;
}
.sidebar-title {
  font-size: 1.05rem;
  font-weight: 900;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 10px;
  margin-bottom: 14px;
}

/* 响应式适配 */
@media (max-width: 992px) {
  .hero-section {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 40px;
  }
  .hero-desc {
    margin: 0 auto 30px;
  }
  .hero-action-group {
    justify-content: center;
  }
  .hero-guarantee {
    justify-content: center;
  }
  .footer-container {
    grid-template-columns: 1fr 1fr;
  }
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.1rem;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: #ffffff;
    flex-direction: column;
    padding: 20px;
    border-bottom: 3px solid var(--border-color);
    box-shadow: var(--pixel-shadow);
  }
  .nav-links.open {
    display: flex;
  }
  .menu-toggle {
    display: block;
  }
  .footer-container {
    grid-template-columns: 1fr;
  }
  .article-main-content {
    padding: 24px 18px;
  }
  .article-h1 {
    font-size: 1.65rem;
  }
}