/* ===================================================================
   小蜜蜂 (Little Bee) 网络加速 - 流光香槟 (Liquid Champagne) 专属样式
   纯原生 CSS，零任何外部依赖，极限秒开与全终端响应式
   =================================================================== */

:root {
  /* 流光香槟色板 */
  --champagne-primary: #e6ca85;
  --champagne-light: #fdf3dc;
  --champagne-glow: #ffdf8d;
  --champagne-dark: #ab8537;
  --champagne-muted: #8d7237;
  --champagne-gradient: linear-gradient(135deg, #fdf3dc 0%, #e6ca85 45%, #b88d3e 100%);
  --champagne-gradient-hover: linear-gradient(135deg, #ffffff 0%, #fae29f 50%, #d4a753 100%);
  --champagne-border: linear-gradient(135deg, rgba(230, 202, 133, 0.45) 0%, rgba(171, 133, 55, 0.15) 100%);

  /* 暗夜背景体系 */
  --bg-main: #090a0d;
  --bg-secondary: #101218;
  --bg-card: rgba(18, 20, 28, 0.72);
  --bg-card-hover: rgba(26, 29, 41, 0.9);
  --bg-glass: rgba(16, 18, 24, 0.65);

  /* 文字与边框 */
  --text-main: #f5f6fa;
  --text-muted: #9aa1b2;
  --text-dim: #687082;
  --border-subtle: rgba(230, 202, 133, 0.18);
  --border-active: rgba(230, 202, 133, 0.55);

  /* 光晕与阴影 */
  --shadow-champagne-sm: 0 4px 20px rgba(230, 202, 133, 0.15);
  --shadow-champagne-lg: 0 10px 40px rgba(230, 202, 133, 0.28);
  --shadow-card: 0 12px 36px rgba(0, 0, 0, 0.55);

  /* 基础尺寸 */
  --max-width: 1200px;
  --header-height: 76px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(230, 202, 133, 0.14), transparent),
    radial-gradient(ellipse 60% 40% at 85% 60%, rgba(171, 133, 55, 0.08), transparent),
    radial-gradient(ellipse 50% 30% at 15% 30%, rgba(230, 202, 133, 0.06), transparent),
    var(--bg-main);
  background-attachment: fixed;
}

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

/* 章节通用结构 */
.section {
  position: relative;
  padding: 96px 0;
  scroll-margin-top: var(--header-height);
}

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

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(230, 202, 133, 0.1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--champagne-primary);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
  backdrop-filter: blur(8px);
}

.section-title {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  color: #ffffff;
  margin-bottom: 16px;
  line-height: 1.25;
}

.champagne-text {
  background: var(--champagne-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  text-shadow: 0 0 30px rgba(230, 202, 133, 0.25);
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===================================================================
   顶部导航栏 (Header / Navbar)
   =================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(9, 10, 13, 0.85);
  border-bottom: 1px solid rgba(230, 202, 133, 0.16);
  transition: all var(--transition-smooth);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* 可互动回到顶部的 Logo */
.logo-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: transparent;
  border: none;
  cursor: pointer;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast), background var(--transition-fast);
  outline: none;
}

.logo-btn:hover {
  transform: translateY(-2px);
  background: rgba(230, 202, 133, 0.08);
}

.logo-btn:active {
  transform: scale(0.96);
}

.logo-icon-wrap {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, #252015 0%, #171510 100%);
  border: 1px solid rgba(230, 202, 133, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(230, 202, 133, 0.25);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-smooth);
}

.logo-btn:hover .logo-icon-wrap {
  box-shadow: 0 0 25px rgba(230, 202, 133, 0.6);
  border-color: var(--champagne-glow);
}

.logo-svg {
  width: 26px;
  height: 26px;
  fill: var(--champagne-primary);
  transition: transform var(--transition-fast);
}

.logo-btn:hover .logo-svg {
  transform: rotate(-10deg) scale(1.1);
}

.logo-text-wrap {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.logo-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  line-height: 1.1;
  background: var(--champagne-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-sub {
  font-size: 0.7rem;
  letter-spacing: 1.5px;
  color: var(--text-dim);
  text-transform: uppercase;
}

/* 导航链接目录 */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  position: relative;
  transition: color var(--transition-fast);
  padding: 6px 0;
}

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

.nav-link:hover {
  color: var(--champagne-light);
}

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

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

/* 移动端导航抽屉开关按钮 */
.nav-toggle-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(230, 202, 133, 0.08);
  border: 1px solid rgba(230, 202, 133, 0.25);
  color: var(--champagne-primary);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  outline: none;
  transition: all var(--transition-fast);
}

.nav-toggle-btn:hover {
  background: rgba(230, 202, 133, 0.18);
  border-color: var(--champagne-primary);
}

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

/* ===================================================================
   按钮系统 (CTA Buttons)
   规范：target="_blank"，确保纯净 dofollow 权重传递
   =================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 28px;
  border-radius: var(--radius-full);
  font-size: 0.98rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-smooth);
  border: 1px solid transparent;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-champagne {
  background: var(--champagne-gradient);
  color: #121008;
  box-shadow: 0 4px 22px rgba(230, 202, 133, 0.35);
}

.btn-champagne::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  transform: skewX(-20deg);
  transition: none;
  animation: shimmer-btn 3.5s infinite;
}

@keyframes shimmer-btn {
  0% {
    left: -100%;
  }

  30% {
    left: 160%;
  }

  100% {
    left: 160%;
  }
}

.btn-champagne:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(230, 202, 133, 0.55);
  background: var(--champagne-gradient-hover);
  color: #000000;
}

.btn-champagne:active {
  transform: translateY(1px) scale(0.98);
}

.btn-outline-champagne {
  background: rgba(230, 202, 133, 0.05);
  border-color: rgba(230, 202, 133, 0.35);
  color: var(--champagne-light);
  backdrop-filter: blur(8px);
}

.btn-outline-champagne:hover {
  background: rgba(230, 202, 133, 0.16);
  border-color: var(--champagne-primary);
  transform: translateY(-2px);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(230, 202, 133, 0.2);
}

.btn-outline-champagne:active {
  transform: translateY(1px);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.1rem;
}

.btn-sm {
  padding: 9px 20px;
  font-size: 0.88rem;
}

/* ===================================================================
   主视觉区 (Hero Section) - 左右分布与高能动态图卡
   =================================================================== */
.hero-section {
  padding-top: calc(var(--header-height) + 48px);
  padding-bottom: 72px;
  position: relative;
  overflow: hidden;
}

.hero-glow-bg {
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 480px;
  background: radial-gradient(circle, rgba(230, 202, 133, 0.16) 0%, rgba(171, 133, 55, 0.05) 50%, transparent 75%);
  filter: blur(80px);
  z-index: -1;
  pointer-events: none;
}

/* 左右分栏网格系统 */
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.92fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 64px;
}

.hero-content-col {
  text-align: left;
}

.hero-headline {
  font-size: clamp(2.4rem, 4.4vw, 3.8rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -1px;
  margin-bottom: 22px;
  color: #ffffff;
}

.brand-highlight {
  position: relative;
  display: inline-block;
  background: var(--champagne-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 25px rgba(230, 202, 133, 0.45));
}

.hero-subhead {
  font-size: clamp(1rem, 1.35vw, 1.18rem);
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 34px;
  line-height: 1.75;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.hero-trust-badges {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.86rem;
  color: #adb5bd;
}

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

.trust-check {
  color: var(--champagne-primary);
  font-weight: 800;
}

/* 右侧高能动态监控图卡 (Smart Terminal Hub) */
.hero-visual-col {
  position: relative;
}

.terminal-card-wrap {
  position: relative;
  max-width: 520px;
  margin: 0 auto;
}

.terminal-card {
  background: linear-gradient(145deg, rgba(22, 25, 36, 0.88) 0%, rgba(12, 14, 20, 0.95) 100%);
  border: 1px solid rgba(230, 202, 133, 0.45);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.75), 0 0 35px rgba(230, 202, 133, 0.15);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

/* 动态激光扫描线动画 */
.terminal-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--champagne-glow), transparent);
  animation: scanline 4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes scanline {
  0% { transform: translateY(0); opacity: 0; }
  15% { opacity: 1; }
  85% { opacity: 1; }
  100% { transform: translateY(420px); opacity: 0; }
}

.terminal-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  margin-bottom: 20px;
  border-bottom: 1px solid rgba(230, 202, 133, 0.15);
}

.terminal-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

.ctrl-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.ctrl-dot.red { background: #ff5f56; }
.ctrl-dot.yellow { background: #ffbd2e; }
.ctrl-dot.green { background: #27c93f; }

.terminal-title {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--champagne-light);
  display: flex;
  align-items: center;
  gap: 6px;
}

.terminal-live-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  color: #34d399;
  background: rgba(52, 211, 153, 0.12);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.live-led {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 8px #34d399;
  animation: pulseLed 1.8s infinite;
}

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

/* 动态下行测速与仪表盘指标 */
.terminal-speed-panel {
  background: rgba(14, 16, 22, 0.7);
  border: 1px solid rgba(230, 202, 133, 0.2);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  margin-bottom: 20px;
}

.speed-gauge-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 8px;
}

.speed-metric-label {
  font-size: 0.82rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.speed-live-val {
  font-size: 2.2rem;
  font-weight: 900;
  font-family: monospace, sans-serif;
  line-height: 1;
}

.speed-live-unit {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--champagne-primary);
  margin-left: 4px;
}

/* 动态波浪/吞吐量条 */
.speed-bar-track {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
  margin-bottom: 12px;
}

.speed-bar-fill {
  width: 92%;
  height: 100%;
  background: var(--champagne-gradient);
  border-radius: 4px;
  box-shadow: 0 0 12px var(--champagne-glow);
  position: relative;
}

.speed-metrics-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.metric-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.metric-pill strong {
  color: #ffffff;
}

/* 实时专线节点流 */
.terminal-node-stream {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.node-stream-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
  transition: all var(--transition-fast);
}

.node-stream-item:hover {
  background: rgba(230, 202, 133, 0.09);
  border-color: rgba(230, 202, 133, 0.3);
  transform: translateX(4px);
}

.node-info-left {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #f1f3f8;
  font-weight: 600;
}

.node-flag-tag {
  font-size: 0.72rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(230, 202, 133, 0.15);
  color: var(--champagne-primary);
  font-weight: 700;
}

.node-stat-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ping-tag {
  font-size: 0.78rem;
  font-weight: 700;
  color: #34d399;
  font-family: monospace;
}

/* 悬浮微粒徽章 (Floating Badges) */
.floating-pill {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: rgba(18, 20, 28, 0.92);
  border: 1px solid rgba(230, 202, 133, 0.5);
  border-radius: var(--radius-full);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 20px rgba(230, 202, 133, 0.2);
  backdrop-filter: blur(16px);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 700;
  z-index: 5;
  pointer-events: none;
}

.floating-pill.pill-top-right {
  top: -18px;
  right: -24px;
  animation: floatCard1 4.5s ease-in-out infinite;
}

.floating-pill.pill-bottom-left {
  bottom: -16px;
  left: -24px;
  animation: floatCard2 5.2s ease-in-out infinite;
}

@keyframes floatCard1 {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(1.5deg); }
}

@keyframes floatCard2 {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(10px) rotate(-1.5deg); }
}

/* 核心指标统计 */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 26px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-card);
}

.stat-item {
  text-align: center;
}

.stat-num {
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 6px;
  font-feature-settings: "tnum";
}

.stat-label {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ===================================================================
   产品核心优势 (Core Advantages - 3 张图文卡片)
   =================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 38px 30px;
  transition: all var(--transition-smooth);
  backdrop-filter: blur(14px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: var(--champagne-border);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.5;
  transition: opacity var(--transition-fast);
}

.feature-card:hover {
  transform: translateY(-8px);
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  box-shadow: 0 16px 45px rgba(230, 202, 133, 0.16);
}

.feature-card:hover::before {
  opacity: 1;
}

.card-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

.card-icon-box {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(230, 202, 133, 0.16) 0%, rgba(171, 133, 55, 0.06) 100%);
  border: 1px solid rgba(230, 202, 133, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--champagne-primary);
  box-shadow: 0 4px 18px rgba(230, 202, 133, 0.18);
  transition: all var(--transition-smooth);
}

.feature-card:hover .card-icon-box {
  transform: scale(1.08);
  border-color: var(--champagne-light);
  box-shadow: 0 0 25px rgba(230, 202, 133, 0.45);
}

.card-status-pill {
  font-size: 0.74rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(52, 211, 153, 0.12);
  border: 1px solid rgba(52, 211, 153, 0.3);
  color: #34d399;
  letter-spacing: 0.4px;
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 14px;
}

.card-desc {
  font-size: 0.96rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 22px;
  flex-grow: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-pill {
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(230, 202, 133, 0.08);
  border: 1px solid rgba(230, 202, 133, 0.16);
  color: var(--champagne-primary);
}

/* ===================================================================
   流媒体与 AI 支持图卡 (Streaming & AI Support)
   =================================================================== */
.unlock-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.unlock-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  backdrop-filter: blur(14px);
  position: relative;
  transition: all var(--transition-smooth);
}

.unlock-box:hover {
  border-color: var(--border-active);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
}

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

.unlock-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(230, 202, 133, 0.12);
  border: 1px solid rgba(230, 202, 133, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--champagne-primary);
}

.unlock-box-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
}

.unlock-box-desc {
  font-size: 0.93rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 24px;
}

.brand-chips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
}

.brand-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(230, 202, 133, 0.14);
  border-radius: var(--radius-md);
  color: #e2e5eb;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.brand-chip:hover {
  background: rgba(230, 202, 133, 0.12);
  border-color: var(--border-active);
  color: var(--champagne-light);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.brand-icon-box {
  width: 32px;
  height: 32px;
  min-width: 32px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--champagne-primary);
  transition: transform var(--transition-fast);
}

.brand-chip:hover .brand-icon-box {
  transform: scale(1.12);
  background: rgba(230, 202, 133, 0.2);
}

.brand-text-col {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.brand-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: #ffffff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand-subtag {
  font-size: 0.72rem;
  color: var(--champagne-primary);
  font-weight: 600;
}

/* ===================================================================
   套餐价格对比表 (Pricing Table - 真实市场参考价格)
   =================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-smooth);
  backdrop-filter: blur(14px);
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.6);
}

/* 热门推荐套餐（突出流光香槟效果） */
.pricing-card.featured {
  background: linear-gradient(180deg, rgba(32, 28, 20, 0.9) 0%, rgba(18, 20, 28, 0.95) 100%);
  border: 2px solid var(--champagne-primary);
  box-shadow: 0 16px 50px rgba(230, 202, 133, 0.25);
  transform: scale(1.03);
  z-index: 2;
}

.pricing-card.featured:hover {
  transform: scale(1.03) translateY(-8px);
  box-shadow: 0 24px 60px rgba(230, 202, 133, 0.38);
}

.featured-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--champagne-gradient);
  color: #121008;
  font-size: 0.8rem;
  font-weight: 800;
  padding: 4px 18px;
  border-radius: var(--radius-full);
  letter-spacing: 0.8px;
  box-shadow: 0 4px 14px rgba(230, 202, 133, 0.4);
}

.discount-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: rgba(230, 202, 133, 0.18);
  border: 1px solid rgba(230, 202, 133, 0.35);
  color: var(--champagne-light);
  margin-left: 8px;
  vertical-align: middle;
}

.orig-price {
  text-decoration: line-through;
  color: var(--text-dim);
  font-size: 0.92rem;
  margin-left: 6px;
  font-weight: normal;
}

.plan-name {
  font-size: 1.4rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
}

.plan-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.plan-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 26px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.currency {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--champagne-primary);
}

.price-amount {
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  color: #ffffff;
  font-feature-settings: "tnum";
}

.price-period {
  font-size: 0.92rem;
  color: var(--text-dim);
}

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

.feature-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.93rem;
  color: #d1d5db;
  margin-bottom: 14px;
}

.check-icon {
  width: 18px;
  height: 18px;
  min-width: 18px;
  color: var(--champagne-primary);
}

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

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

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-smooth), border-color var(--transition-smooth);
}

.review-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-active);
}

.star-rating {
  display: flex;
  gap: 4px;
  color: var(--champagne-primary);
  margin-bottom: 16px;
}

.review-quote {
  font-size: 0.98rem;
  color: #e5e7eb;
  line-height: 1.7;
  margin-bottom: 24px;
  flex-grow: 1;
  font-style: italic;
}

.reviewer-info {
  display: flex;
  align-items: center;
  gap: 14px;
}

.reviewer-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(230, 202, 133, 0.3) 0%, rgba(171, 133, 55, 0.1) 100%);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--champagne-light);
  font-size: 1rem;
}

.reviewer-meta h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
}

.reviewer-meta p {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ===================================================================
   常见问题解答 (FAQ Section)
   =================================================================== */
.faq-grid {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

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

.faq-question {
  width: 100%;
  background: transparent;
  border: none;
  padding: 22px 28px;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  color: #ffffff;
  font-size: 1.05rem;
  font-weight: 600;
}

.faq-icon {
  width: 20px;
  height: 20px;
  min-width: 20px;
  transition: transform var(--transition-smooth);
  color: var(--champagne-primary);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 28px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 200px;
  padding: 0 28px 24px 28px;
}

/* ===================================================================
   底部横幅 CTA (Bottom Banner)
   =================================================================== */
.bottom-cta-banner {
  padding: 72px 0;
}

.cta-box {
  background: linear-gradient(135deg, rgba(32, 28, 20, 0.95) 0%, rgba(14, 16, 22, 0.95) 100%);
  border: 1px solid var(--border-active);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-champagne-lg);
}

.cta-box::after {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(230, 202, 133, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

/* ===================================================================
   页脚 (Footer)
   严格遵守规范：页脚只保留这四个标题，内容打开新的页面展示
   1. 网站地图
   2. 关于我们
   3. 服务条款
   4. 隐私政策
   =================================================================== */
.site-footer {
  background: #060709;
  border-top: 1px solid rgba(230, 202, 133, 0.15);
  padding: 48px 0 36px 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
}

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

.footer-link {
  color: #adb5bd;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  position: relative;
  transition: color var(--transition-fast);
  padding: 6px 4px;
}

.footer-link:hover {
  color: var(--champagne-light);
}

.footer-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--champagne-primary);
  transition: width var(--transition-fast);
}

.footer-link:hover::after {
  width: 100%;
}

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

/* ===================================================================
   SEO 增强型页脚底层矩阵 (Footer SEO Architecture)
   =================================================================== */
.footer-seo-matrix {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(230, 202, 133, 0.12);
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: center;
}

.footer-seo-keywords {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px 18px;
  flex-wrap: wrap;
  font-size: 0.84rem;
  color: var(--text-dim);
}

.footer-seo-keywords span {
  color: #adb5bd;
}

.footer-seo-link {
  color: #adb5bd;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-seo-link:hover {
  color: var(--champagne-primary);
}

.footer-seo-pbn-highlight {
  color: var(--champagne-glow);
  font-weight: 700;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.footer-seo-pbn-highlight:hover {
  color: #ffffff;
  text-shadow: 0 0 10px var(--champagne-glow);
}

.footer-badges-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: #7b8495;
}

.footer-badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(230, 202, 133, 0.15);
  border-radius: var(--radius-full);
}

.footer-badge-tag strong {
  color: var(--champagne-primary);
}

.footer-disclaimer-text {
  font-size: 0.75rem;
  color: #565d6d;
  max-width: 860px;
  margin: 0 auto;
  line-height: 1.6;
}

/* 友情链接与版权矩阵声明 */
.footer-friend-links {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(230, 202, 133, 0.15);
  text-align: center;
  font-size: 0.88rem;
  color: #a0a6b5;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 14px;
}

.footer-friend-links a {
  color: var(--champagne-primary);
  font-weight: 700;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.footer-friend-links a:hover {
  color: #ffffff;
  text-shadow: 0 0 10px var(--champagne-glow);
}

.friend-link-divider {
  color: rgba(230, 202, 133, 0.4);
}



/* ===================================================================
   右侧章节跳转浮动控制面板 (Floating Section Arrows)
   点击以一个章节一个章节移动，支持向上、向下，交互动画
   =================================================================== */
.section-nav-panel {
  position: fixed;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  background: rgba(14, 16, 22, 0.85);
  border: 1px solid rgba(230, 202, 133, 0.35);
  border-radius: var(--radius-full);
  padding: 12px 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 20px rgba(230, 202, 133, 0.15);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.arrow-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(230, 202, 133, 0.3);
  background: rgba(230, 202, 133, 0.08);
  color: var(--champagne-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-smooth);
  outline: none;
}

.arrow-btn:hover {
  background: var(--champagne-gradient);
  color: #121008;
  border-color: transparent;
  transform: scale(1.12);
  box-shadow: 0 0 18px rgba(230, 202, 133, 0.6);
}

.arrow-btn:active {
  transform: scale(0.92);
}

.arrow-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
  background: rgba(255, 255, 255, 0.02);
}

.arrow-icon {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* 章节指示器小圆点 */
.nav-dots-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 4px 0;
}

.nav-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  cursor: pointer;
  transition: all var(--transition-smooth);
  border: none;
  padding: 0;
}

.nav-dot:hover {
  background: rgba(230, 202, 133, 0.7);
  transform: scale(1.3);
}

.nav-dot.active {
  background: var(--champagne-primary);
  height: 18px;
  border-radius: 4px;
  box-shadow: 0 0 10px var(--champagne-primary);
}

/* ===================================================================
   响应式适配 (@media 移动端优先与单栏显示)
   =================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
  }

  .hero-content-col {
    text-align: center;
  }

  .hero-subhead {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .hero-trust-badges {
    justify-content: center;
  }

  .floating-pill.pill-top-right {
    right: 0;
  }

  .floating-pill.pill-bottom-left {
    left: 0;
  }

  .features-grid,
  .pricing-grid,
  .reviews-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
  }

  .pricing-card.featured {
    transform: none;
  }

  .pricing-card.featured:hover {
    transform: translateY(-8px);
  }

  .unlock-wrapper {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 68px;
  }

  .section {
    padding: 64px 0;
  }

  /* 移动端导航目录开关与抽屉 */
  .nav-toggle-btn {
    display: inline-flex;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: rgba(10, 12, 16, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-active);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
    transform: translateY(-130%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-smooth), opacity var(--transition-smooth);
    z-index: 998;
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link {
    font-size: 1.05rem;
    padding: 8px 0;
  }

  .hero-section {
    padding-top: calc(var(--header-height) + 24px);
    padding-bottom: 56px;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta-group .btn {
    width: 100%;
    min-height: 52px;
    /* 适合手指点击 */
  }

  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    padding: 20px 16px;
  }

  .brand-chips-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-nav {
    flex-direction: column;
    gap: 18px;
  }

  .section-nav-panel {
    right: 12px;
    padding: 8px 6px;
    transform: translateY(-50%) scale(0.9);
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .logo-title {
    font-size: 1.15rem;
  }

  .logo-sub {
    font-size: 0.62rem;
  }

  .btn-sm {
    padding: 8px 14px;
    font-size: 0.82rem;
  }
}

/* ===================================================================
   独立子页面通用样式 (关于我们、服务条款、隐私政策、网站地图)
   =================================================================== */
.subpage-body {
  padding-top: calc(var(--header-height) + 36px);
  padding-bottom: 72px;
}

.subpage-header {
  margin-bottom: 40px;
}

.back-home-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--champagne-primary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 24px;
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.back-home-link:hover {
  transform: translateX(-4px);
  color: var(--champagne-light);
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-card);
}

.article-section {
  margin-bottom: 40px;
}

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

.article-h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.article-h2::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 20px;
  background: var(--champagne-gradient);
  border-radius: 2px;
}

.article-p {
  color: #c7cbd4;
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 14px;
}

.article-list {
  list-style: none;
  margin: 16px 0;
  padding-left: 8px;
}

.article-list li {
  position: relative;
  padding-left: 24px;
  color: #c7cbd4;
  margin-bottom: 12px;
  line-height: 1.7;
}

.article-list li::before {
  content: "✦";
  position: absolute;
  left: 0;
  color: var(--champagne-primary);
  font-size: 0.85rem;
}

.alert-highlight-box {
  background: rgba(230, 202, 133, 0.08);
  border: 1px solid rgba(230, 202, 133, 0.3);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin: 20px 0;
  color: var(--champagne-light);
}

.sitemap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-top: 24px;
}

.sitemap-column h3 {
  color: var(--champagne-primary);
  font-size: 1.2rem;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(230, 202, 133, 0.2);
}

.sitemap-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sitemap-links a {
  color: #e5e7eb;
  text-decoration: none;
  transition: color var(--transition-fast), transform var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.sitemap-links a:hover {
  color: var(--champagne-light);
  transform: translateX(4px);
}

@media (max-width: 768px) {
  .article-card {
    padding: 28px 20px;
  }

  .sitemap-grid {
    grid-template-columns: 1fr;
  }
}

/* ===================================================================
   SEO 专栏板块 (Homepage SEO Articles Grid)
   =================================================================== */
.articles-section {
  padding: 96px 0;
  position: relative;
}

.articles-filter-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--champagne-gradient);
  color: #121008;
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(230, 202, 133, 0.3);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 48px;
}

.seo-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-smooth);
  backdrop-filter: blur(14px);
  position: relative;
  text-decoration: none;
}

.seo-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-active);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(230, 202, 133, 0.15);
}

.seo-card-banner {
  height: 140px;
  background: linear-gradient(135deg, rgba(32, 28, 20, 0.95) 0%, rgba(18, 20, 28, 0.95) 100%);
  border-bottom: 1px solid rgba(230, 202, 133, 0.15);
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 16px 20px;
  overflow: hidden;
}

.seo-card-banner::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 140px;
  height: 140px;
  background: radial-gradient(circle, rgba(230, 202, 133, 0.22) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(20px);
}

.seo-card-icon-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(230, 202, 133, 0.12);
  border: 1px solid rgba(230, 202, 133, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--champagne-primary);
}

.seo-category-pill {
  font-size: 0.74rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(230, 202, 133, 0.18);
  border: 1px solid rgba(230, 202, 133, 0.4);
  color: var(--champagne-light);
  backdrop-filter: blur(8px);
}

.seo-card-body {
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.seo-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.seo-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.45;
  margin-bottom: 12px;
  transition: color var(--transition-fast);
}

.seo-card:hover .seo-card-title {
  color: var(--champagne-light);
}

.seo-card-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.seo-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 14px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--champagne-primary);
}

.read-more-text {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: transform var(--transition-fast);
}

.seo-card:hover .read-more-text {
  transform: translateX(4px);
}

.articles-load-more {
  text-align: center;
  margin-top: 32px;
}

/* ===================================================================
   SEO 文章独立页面专属样式 (Single Post Template)
   =================================================================== */
.post-main-container {
  max-width: 900px;
  margin: 0 auto;
  padding-top: calc(var(--header-height) + 32px);
  padding-bottom: 80px;
}

.post-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  color: var(--text-dim);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.post-breadcrumbs a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.post-breadcrumbs a:hover {
  color: var(--champagne-primary);
}

.post-article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 48px 44px;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
}

.post-h1 {
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.3;
  margin-bottom: 20px;
}

.post-meta-bar {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  padding-bottom: 24px;
  margin-bottom: 32px;
  border-bottom: 1px solid rgba(230, 202, 133, 0.16);
  font-size: 0.88rem;
  color: var(--text-muted);
}

.post-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.post-toc-box {
  background: rgba(230, 202, 133, 0.06);
  border: 1px solid rgba(230, 202, 133, 0.25);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin-bottom: 40px;
}

.post-toc-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--champagne-primary);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.post-toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.post-toc-list a {
  color: #d1d5db;
  text-decoration: none;
  font-size: 0.93rem;
  transition: color var(--transition-fast), transform var(--transition-fast);
  display: inline-block;
}

.post-toc-list a:hover {
  color: var(--champagne-light);
  transform: translateX(4px);
}

/* 正文排版 */
.post-content h2 {
  font-size: 1.45rem;
  font-weight: 700;
  color: #ffffff;
  margin-top: 44px;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(230, 202, 133, 0.15);
  display: flex;
  align-items: center;
  gap: 10px;
}

.post-content h2::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 20px;
  background: var(--champagne-gradient);
  border-radius: 2px;
}

.post-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--champagne-light);
  margin-top: 28px;
  margin-bottom: 14px;
}

.post-content p {
  color: #cbd2df;
  font-size: 1.02rem;
  line-height: 1.85;
  margin-bottom: 20px;
  text-align: justify;
}

.post-content ul,
.post-content ol {
  margin: 20px 0;
  padding-left: 24px;
  color: #cbd2df;
}

.post-content li {
  margin-bottom: 10px;
  line-height: 1.75;
}

.post-content blockquote {
  border-left: 3px solid var(--champagne-primary);
  background: rgba(230, 202, 133, 0.07);
  padding: 16px 22px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  font-style: italic;
  color: #e5e7eb;
}

/* 正文表格 */
.post-table-wrap {
  overflow-x: auto;
  margin: 28px 0;
  border-radius: var(--radius-md);
  border: 1px solid rgba(230, 202, 133, 0.2);
}

.post-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.93rem;
  text-align: left;
}

.post-table th {
  background: rgba(230, 202, 133, 0.12);
  color: var(--champagne-primary);
  padding: 14px 18px;
  font-weight: 700;
}

.post-table td {
  padding: 12px 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: #cbd2df;
}

.post-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* 正文中嵌置的 CTA 推荐卡 */
.post-cta-card {
  background: linear-gradient(135deg, rgba(32, 28, 20, 0.95) 0%, rgba(14, 16, 22, 0.95) 100%);
  border: 1px solid var(--champagne-primary);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  margin: 36px 0;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 25px rgba(230, 202, 133, 0.18);
}

.post-cta-card h4 {
  font-size: 1.3rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 12px;
}

.post-cta-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 600px;
  margin: 0 auto 24px auto;
  line-height: 1.65;
}

@media (max-width: 1024px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .articles-grid {
    grid-template-columns: 1fr;
  }
  .post-article-card {
    padding: 28px 20px;
  }
  .post-main-container {
    padding-left: 16px;
    padding-right: 16px;
  }
}