/* ============================================================
   一元机场 (1-Yuan Airport) - 纯原生 CSS 极速设计系统
   视觉风格：熔岩荧橙 (Lava Fluorescent Neon Orange) + 黑曜石科技感
   ============================================================ */

:root {
  --lava-primary: #FF4D00;
  --lava-neon: #FF6600;
  --lava-glow: #FF8533;
  --lava-dark: #CC3D00;
  --lava-gradient: linear-gradient(135deg, #FF6600 0%, #FF3300 50%, #D82200 100%);
  --lava-glow-shadow: 0 0 25px rgba(255, 77, 0, 0.45), 0 0 50px rgba(255, 77, 0, 0.2);
  --lava-glow-btn: 0 4px 20px rgba(255, 77, 0, 0.45);
  --lava-glow-btn-hover: 0 6px 30px rgba(255, 90, 0, 0.7);

  --bg-main: #0B0C10;
  --bg-card: rgba(18, 20, 26, 0.85);
  --bg-card-hover: rgba(26, 29, 38, 0.95);
  --bg-glass: rgba(15, 17, 23, 0.75);
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-lava: rgba(255, 77, 0, 0.3);
  --border-lava-hover: rgba(255, 102, 0, 0.75);

  --text-primary: #FFFFFF;
  --text-secondary: #9FA6B2;
  --text-muted: #646C7A;
  
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  --container-max: 1200px;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(circle at 50% -10%, rgba(255, 77, 0, 0.18) 0%, transparent 60%),
    radial-gradient(circle at 10% 40%, rgba(255, 51, 0, 0.06) 0%, transparent 45%),
    radial-gradient(circle at 90% 75%, rgba(255, 102, 0, 0.08) 0%, transparent 50%);
  background-attachment: fixed;
}

/* 链接全局重置与规范 */
a {
  color: inherit;
  text-decoration: none;
  transition: all var(--transition-fast);
}

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

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 24px;
}

/* 页面章节通用设置 */
section, footer {
  padding: 90px 0;
  position: relative;
  scroll-margin-top: 76px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: rgba(255, 77, 0, 0.1);
  border: 1px solid rgba(255, 77, 0, 0.3);
  color: var(--lava-neon);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 16px;
  color: #FFFFFF;
}

.section-title .highlight {
  background: var(--lava-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  text-shadow: 0 0 30px rgba(255, 77, 0, 0.3);
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: 48px;
}

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

/* ================= 顶栏导航 HEADER ================= */
.header-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  background: rgba(11, 12, 16, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 999;
  display: flex;
  align-items: center;
  transition: all var(--transition-normal);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo-wrapper {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
  background: transparent;
  border: none;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: transform var(--transition-fast), filter var(--transition-fast);
}

.logo-wrapper:hover {
  transform: translateY(-2px);
  filter: drop-shadow(0 0 12px rgba(255, 77, 0, 0.6));
}

.logo-wrapper:active {
  transform: scale(0.94);
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--lava-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 12px rgba(255, 77, 0, 0.4);
  position: relative;
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.logo-icon::after {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.4) 10%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
}

.logo-wrapper:hover .logo-icon {
  transform: rotate(-10deg) scale(1.08);
}

.logo-wrapper:hover .logo-icon::after {
  opacity: 1;
}

.logo-icon svg {
  width: 22px;
  height: 22px;
  fill: #FFFFFF;
}

.logo-text {
  font-size: 1.28rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: #FFFFFF;
  display: flex;
  flex-direction: column;
}

.logo-text span:first-child {
  line-height: 1.1;
  background: var(--lava-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-text .badge-mini {
  font-size: 0.68rem;
  font-weight: 700;
  color: #FF9966;
  letter-spacing: 0.08em;
}

/* 页眉主导航目录 */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-menu-link {
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
  display: inline-block;
}

.nav-menu-link:hover {
  color: #FFFFFF;
  background: rgba(255, 77, 0, 0.08);
}

.nav-menu-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--lava-gradient);
  transition: all var(--transition-fast);
  transform: translateX(-50%);
  border-radius: 2px;
}

.nav-menu-link:hover::after {
  width: 60%;
}

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

.nav-link {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
}

.nav-link:hover {
  color: #FFFFFF;
}

/* ================= 核心按钮 CTA BUTTONS ================= */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--lava-gradient);
  color: #FFFFFF;
  font-weight: 700;
  font-size: 1rem;
  padding: 13px 28px;
  border-radius: var(--radius-pill);
  box-shadow: var(--lava-glow-btn);
  border: 1px solid rgba(255, 255, 255, 0.25);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--lava-glow-btn-hover);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-primary:hover::before {
  left: 100%;
}

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

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  color: #FFFFFF;
  font-weight: 600;
  font-size: 1rem;
  padding: 13px 28px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: rgba(255, 77, 0, 0.12);
  border-color: var(--lava-neon);
  color: var(--lava-neon);
  transform: translateY(-2px);
}

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

.btn-large {
  padding: 16px 36px;
  font-size: 1.15rem;
}

/* ================= 1. HERO 主视觉区 (左右分布架构) ================= */
#hero {
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding-top: 130px;
  padding-bottom: 80px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  align-items: center;
  gap: 48px;
}

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

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  background: rgba(255, 77, 0, 0.12);
  border: 1px solid rgba(255, 77, 0, 0.35);
  font-size: 0.88rem;
  color: #FFB380;
  margin-bottom: 20px;
}

.hero-pill .dot {
  width: 8px;
  height: 8px;
  background: var(--lava-primary);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--lava-neon);
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.5); opacity: 0.6; }
}

.hero-brand-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--lava-glow);
  letter-spacing: 0.04em;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.hero-headline {
  font-size: clamp(2.3rem, 4.4vw, 3.8rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.025em;
  margin-bottom: 22px;
  color: #FFFFFF;
}

.hero-headline .glow-text {
  background: var(--lava-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-subtitle {
  font-size: clamp(1.02rem, 1.8vw, 1.22rem);
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 36px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 20px 24px;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

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

.metric-value {
  font-size: clamp(1.5rem, 2.5vw, 2.1rem);
  font-weight: 800;
  color: #FFFFFF;
  background: var(--lava-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

.metric-label {
  font-size: 0.84rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ================= 右侧动态图卡 (DYNAMIC TELEMETRY DASHBOARD) ================= */
.hero-right {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-dashboard {
  width: 100%;
  max-width: 470px;
  background: rgba(18, 20, 27, 0.9);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 77, 0, 0.35);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 16px 45px rgba(0, 0, 0, 0.6), 0 0 40px rgba(255, 77, 0, 0.18);
  position: relative;
  transition: all var(--transition-normal);
}

.hero-dashboard:hover {
  border-color: var(--border-lava-hover);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7), 0 0 50px rgba(255, 77, 0, 0.32);
  transform: translateY(-4px);
}

.dash-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.dash-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  color: #FFFFFF;
}

.dash-status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 10px #10B981;
  animation: pulseGreen 2s infinite ease-in-out;
}

@keyframes pulseGreen {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.3); }
}

.dash-badge {
  font-size: 0.74rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: rgba(255, 77, 0, 0.15);
  color: var(--lava-glow);
  border: 1px solid rgba(255, 77, 0, 0.3);
}

/* 动态节点延迟列表 */
.dash-ping-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

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

.ping-item:hover {
  background: rgba(255, 77, 0, 0.08);
  border-color: rgba(255, 77, 0, 0.35);
  transform: translateX(4px);
}

.ping-name {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: #FFFFFF;
}

.ping-flag {
  font-size: 1.05rem;
}

.ping-stats {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ping-ms {
  font-size: 0.82rem;
  font-weight: 700;
  color: #34D399;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.ping-bar-track {
  width: 48px;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  overflow: hidden;
}

.ping-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, #10B981, #FF6600);
  animation: pingFlux 3s ease-in-out infinite alternate;
}

@keyframes pingFlux {
  0% { width: 85%; }
  50% { width: 95%; }
  100% { width: 88%; }
}

/* 实时吞吐波形区 */
.dash-throughput {
  background: rgba(0, 0, 0, 0.35);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.throughput-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 0.8rem;
}

.throughput-title {
  color: var(--text-secondary);
}

.throughput-val {
  color: var(--lava-neon);
  font-weight: 700;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.wave-svg {
  width: 100%;
  height: 42px;
  overflow: hidden;
}

.wave-line {
  stroke: var(--lava-neon);
  stroke-width: 2.2;
  fill: none;
  stroke-dasharray: 400;
  stroke-dashoffset: 400;
  animation: drawWave 3s ease-in-out infinite alternate;
}

@keyframes drawWave {
  0% { stroke-dashoffset: 200; }
  100% { stroke-dashoffset: 0; }
}

/* 浮动徽章图卡 */
.float-pill {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: rgba(18, 20, 26, 0.95);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-lava);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6), 0 0 15px rgba(255, 77, 0, 0.25);
  font-size: 0.8rem;
  font-weight: 700;
  color: #FFFFFF;
  z-index: 3;
  pointer-events: none;
}

.float-pill-1 {
  top: -18px;
  right: -15px;
  animation: floatTop 4s ease-in-out infinite alternate;
}

.float-pill-2 {
  bottom: -18px;
  left: -15px;
  animation: floatBottom 4.5s ease-in-out infinite alternate;
}

@keyframes floatTop {
  0% { transform: translateY(0px) rotate(1deg); }
  100% { transform: translateY(-10px) rotate(-1deg); }
}

@keyframes floatBottom {
  0% { transform: translateY(0px) rotate(-1deg); }
  100% { transform: translateY(10px) rotate(1deg); }
}
}

/* ================= 2. 核心优势 (3个图文卡片) ================= */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 38px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--lava-gradient);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-lava-hover);
  background: var(--bg-card-hover);
  box-shadow: var(--lava-glow-shadow);
}

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

.feature-icon-box {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: rgba(255, 77, 0, 0.1);
  border: 1px solid rgba(255, 77, 0, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--lava-neon);
  transition: transform var(--transition-fast);
}

.feature-card:hover .feature-icon-box {
  transform: scale(1.1) rotate(-5deg);
  background: rgba(255, 77, 0, 0.2);
  border-color: var(--lava-primary);
  box-shadow: 0 0 20px rgba(255, 77, 0, 0.35);
}

.feature-icon-box svg {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

.feature-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #FFFFFF;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
}

.feature-pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.feature-pill {
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

/* ================= 3. 流媒体与 AI 支持图卡 ================= */
.unlock-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.unlock-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.unlock-box:hover {
  border-color: var(--border-lava-hover);
  box-shadow: var(--lava-glow-shadow);
  transform: translateY(-4px);
}

.unlock-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.unlock-badge-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(255, 77, 0, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--lava-neon);
}

.unlock-badge-icon svg {
  width: 26px;
  height: 26px;
  fill: currentColor;
}

.unlock-header h3 {
  font-size: 1.45rem;
  font-weight: 700;
}

.unlock-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 28px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.service-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all var(--transition-fast);
}

.service-card:hover {
  background: rgba(255, 77, 0, 0.1);
  border-color: rgba(255, 77, 0, 0.4);
  transform: translateX(4px);
}

.service-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.service-icon svg {
  width: 18px;
  height: 18px;
}

.service-info {
  display: flex;
  flex-direction: column;
}

.service-name {
  font-weight: 700;
  font-size: 0.92rem;
  color: #FFFFFF;
}

.service-status {
  font-size: 0.75rem;
  color: #34D399; /* Emerald green for 100% unlocked */
  display: flex;
  align-items: center;
  gap: 4px;
}

.service-status::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #34D399;
}

/* ================= 4. 套餐价格对比表 PRICING ================= */
.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-normal);
}

.pricing-card.featured {
  background: linear-gradient(180deg, rgba(35, 25, 20, 0.9) 0%, rgba(18, 20, 26, 0.95) 100%);
  border: 2px solid var(--lava-primary);
  box-shadow: 0 0 35px rgba(255, 77, 0, 0.28);
  transform: scale(1.04);
  z-index: 2;
}

.pricing-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-lava-hover);
  box-shadow: var(--lava-glow-shadow);
}

.pricing-card.featured:hover {
  transform: scale(1.04) translateY(-6px);
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--lava-gradient);
  color: #FFFFFF;
  font-size: 0.8rem;
  font-weight: 800;
  padding: 4px 18px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 12px rgba(255, 77, 0, 0.5);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.pricing-header {
  text-align: center;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.pricing-name {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #FFFFFF;
}

.pricing-price-box {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}

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

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

.period {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.pricing-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-top: 10px;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.pricing-features li svg {
  width: 18px;
  height: 18px;
  fill: var(--lava-neon);
  flex-shrink: 0;
}

.pricing-features li.disabled {
  color: var(--text-muted);
  opacity: 0.6;
}

.pricing-features li.disabled svg {
  fill: var(--text-muted);
}

.pricing-action {
  margin-top: auto;
}

.pricing-action .btn-primary,
.pricing-action .btn-secondary {
  width: 100%;
}

/* ================= 5. 用户评价 TESTIMONIALS ================= */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
}

.testimonial-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-lava);
}

.stars {
  display: flex;
  gap: 4px;
  color: #FFB800;
  margin-bottom: 16px;
}

.stars svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.testimonial-text {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 24px;
  flex-grow: 1;
}

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

.user-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--lava-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #FFFFFF;
  font-size: 0.95rem;
}

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

.user-name {
  font-weight: 700;
  font-size: 0.92rem;
  color: #FFFFFF;
}

.user-tag {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ================= 6. 常见问题解答 FAQ ================= */
.faq-container {
  max-width: 820px;
  margin-inline: 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: all var(--transition-fast);
}

.faq-item:hover {
  border-color: rgba(255, 77, 0, 0.4);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 26px;
  font-size: 1.05rem;
  font-weight: 600;
  color: #FFFFFF;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  user-select: none;
}

.faq-question svg {
  width: 20px;
  height: 20px;
  fill: var(--lava-neon);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0, 1, 0, 1);
  padding: 0 26px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 24px;
}

/* ================= 5. SEO 文章知识库专栏 (图卡展示) ================= */
#articles {
  position: relative;
}

.articles-filter-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: #FFFFFF;
  border-color: rgba(255, 77, 0, 0.4);
  background: rgba(255, 77, 0, 0.08);
}

.filter-btn.active {
  background: var(--lava-gradient);
  color: #FFFFFF;
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(255, 77, 0, 0.35);
}

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

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
}

.article-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-lava-hover);
  box-shadow: var(--lava-glow-shadow);
  background: var(--bg-card-hover);
}

.article-card.hero {
  border: 2px solid var(--lava-primary);
  background: linear-gradient(180deg, rgba(35, 22, 16, 0.85) 0%, rgba(18, 20, 26, 0.95) 100%);
  box-shadow: 0 0 30px rgba(255, 77, 0, 0.2);
}

.art-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.art-card-tag {
  font-size: 0.74rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: rgba(255, 77, 0, 0.12);
  color: var(--lava-glow);
  border: 1px solid rgba(255, 77, 0, 0.25);
}

.art-card-date {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.art-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 12px;
  color: #FFFFFF;
}

.art-card-title a {
  color: #FFFFFF;
  transition: color var(--transition-fast);
}

.art-card-title a:hover {
  color: var(--lava-neon);
}

.art-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.art-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  gap: 12px;
}

.art-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.art-card-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.art-read-btn {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--lava-glow);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.art-read-btn:hover {
  color: #FFFFFF;
  background: rgba(255, 77, 0, 0.15);
}

.art-jump-btn {
  font-size: 0.8rem;
  font-weight: 700;
  color: #FFFFFF;
  background: var(--lava-gradient);
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  box-shadow: 0 2px 8px rgba(255, 77, 0, 0.3);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.art-jump-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(255, 77, 0, 0.6);
}

/* ================= 7. 页脚 FOOTER (SEO 强化重构版) ================= */
.site-footer {
  background: #08090C;
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 45px;
  position: relative;
}

.footer-primary-bar {
  padding-bottom: 32px;
  margin-bottom: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  flex-wrap: wrap;
}

.footer-nav-item a {
  font-size: 1.05rem;
  font-weight: 700;
  color: #FFFFFF;
  position: relative;
  padding: 8px 14px;
  transition: all var(--transition-fast);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
}

.footer-nav-item a:hover {
  color: var(--lava-neon);
  background: rgba(255, 77, 0, 0.08);
  border-color: rgba(255, 77, 0, 0.35);
  box-shadow: 0 0 15px rgba(255, 77, 0, 0.25);
  transform: translateY(-2px);
}

/* SEO 关键词互链矩阵 */
.footer-seo-matrix {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-bottom: 40px;
}

.seo-matrix-col {
  display: flex;
  flex-direction: column;
}

.seo-col-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--lava-glow);
  margin-bottom: 14px;
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  gap: 6px;
}

.seo-col-title::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 14px;
  background: var(--lava-gradient);
  border-radius: 2px;
}

.seo-col-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.seo-col-links li a {
  color: var(--text-secondary);
  font-size: 0.86rem;
  transition: all var(--transition-fast);
  display: inline-block;
}

.seo-col-links li a:hover {
  color: #FFFFFF;
  transform: translateX(4px);
  text-shadow: 0 0 10px rgba(255, 77, 0, 0.4);
}

/* 信任与安全徽章体系 */
.footer-trust-badges {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 20px 24px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 36px;
}

.trust-badge-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.trust-badge-item svg {
  width: 20px;
  height: 20px;
  fill: var(--lava-neon);
  flex-shrink: 0;
}

/* 品牌说明与系统运行状态 */
.footer-brand-statement {
  text-align: center;
  max-width: 860px;
  margin-inline: auto;
  margin-bottom: 28px;
}

.brand-desc {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 14px;
}

.system-status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  color: #34D399;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
}

.status-live-dot {
  width: 7px;
  height: 7px;
  background: #10B981;
  border-radius: 50%;
  box-shadow: 0 0 8px #10B981;
  animation: pulseGreen 2s infinite ease-in-out;
}

.footer-copy {
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-pbn-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.pbn-link {
  color: #FFFFFF !important;
  font-size: 0.86rem;
  font-weight: 600;
  text-decoration: none;
  padding: 4px 12px;
  border-radius: var(--radius-sm, 8px);
  background: rgba(255, 77, 0, 0.12);
  border: 1px solid rgba(255, 77, 0, 0.35);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-block;
}

.pbn-link:hover {
  color: #FFFFFF !important;
  background: var(--lava-gradient, linear-gradient(135deg, #FF6600 0%, #FF3300 100%));
  border-color: #FF6600;
  box-shadow: 0 0 15px rgba(255, 102, 0, 0.6);
  transform: translateY(-2px);
}

/* ================= 右侧浮动章节切换箭头 ================= */
.section-nav-dock {
  position: fixed;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  z-index: 998;
  background: rgba(18, 20, 26, 0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 12px 8px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 77, 0, 0.25);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}

.dock-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  outline: none;
}

.dock-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  transition: transform var(--transition-fast);
}

.dock-btn:hover {
  background: var(--lava-gradient);
  border-color: var(--lava-neon);
  color: #FFFFFF;
  transform: scale(1.12);
  box-shadow: 0 0 16px rgba(255, 77, 0, 0.6);
}

.dock-btn:active,
.dock-btn.active-tap {
  transform: scale(0.88);
  background: var(--lava-gradient);
  border-color: #FFFFFF;
  box-shadow: 0 0 30px rgba(255, 102, 0, 1), 0 0 10px #FFFFFF;
}

/* 霓虹滚动条定制 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: #0B0C10;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 77, 0, 0.4);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--lava-primary);
}

.dock-indicator {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--lava-neon);
  letter-spacing: 0.05em;
  padding: 2px 0;
  user-select: none;
}

/* ================= 移动端响应式 (@media) ================= */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-left {
    text-align: center;
  }

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

  .float-pill {
    display: none;
  }

  .nav-menu {
    display: none;
  }

  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: translateY(-6px);
  }
  .unlock-wrapper {
    grid-template-columns: 1fr;
  }
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-seo-matrix {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .footer-trust-badges {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .footer-seo-matrix {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .footer-trust-badges {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .articles-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  section, footer {
    padding: 60px 0;
    scroll-margin-top: 66px;
  }

  .header-nav {
    height: 64px;
  }

  #hero {
    padding-top: 110px;
    padding-bottom: 50px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 18px;
  }

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

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

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

  /* 浮动箭头在移动端靠右下侧 */
  .section-nav-dock {
    right: 14px;
    bottom: 24px;
    top: auto;
    transform: none;
    padding: 8px 6px;
    gap: 8px;
  }

  .dock-btn {
    width: 38px;
    height: 38px;
  }

  .dock-btn svg {
    width: 16px;
    height: 16px;
  }

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


/* ================= 8. 独立子页面通用样式 (关于我们 / 条款 / 隐私 / 地图) ================= */
.subpage-hero {
  padding-top: 130px;
  padding-bottom: 40px;
  text-align: center;
}

.subpage-container {
  max-width: 900px;
  margin-inline: auto;
  padding-inline: 24px;
  padding-bottom: 90px;
}

.doc-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

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

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

.doc-section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 77, 0, 0.2);
}

.doc-section h2::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 20px;
  background: var(--lava-gradient);
  border-radius: 4px;
}

.doc-section h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: #FFB380;
  margin-top: 20px;
  margin-bottom: 10px;
}

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

.doc-list {
  list-style: none;
  margin-bottom: 16px;
}

.doc-list li {
  position: relative;
  padding-left: 24px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 10px;
}

.doc-list li::before {
  content: "•";
  position: absolute;
  left: 8px;
  color: var(--lava-neon);
  font-weight: bold;
  font-size: 1.2rem;
}

.alert-box {
  background: rgba(255, 77, 0, 0.08);
  border-left: 4px solid var(--lava-neon);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 20px 0;
  font-size: 0.95rem;
  color: #FFD4BF;
  line-height: 1.6;
}

.grid-cols-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 16px;
}

.node-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px;
  transition: all var(--transition-fast);
}

.node-item:hover {
  border-color: var(--lava-neon);
  background: rgba(255, 77, 0, 0.05);
}

.node-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.node-ping {
  font-size: 0.8rem;
  font-weight: 700;
  color: #34D399;
}

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

.subpage-cta {
  margin-top: 48px;
  text-align: center;
  background: linear-gradient(180deg, rgba(255, 77, 0, 0.12) 0%, rgba(20, 22, 28, 0.6) 100%);
  border: 1px solid rgba(255, 77, 0, 0.3);
  border-radius: var(--radius-lg);
  padding: 40px;
}

@media (max-width: 768px) {
  .doc-card {
    padding: 24px 18px;
  }
  .grid-cols-2 {
    grid-template-columns: 1fr;
  }
  .subpage-hero {
    padding-top: 96px;
  }
}