/* ==========================================================================
   闪狐云 (FlashFox Cloud) - flashfox.click 官方样式表
   版本: 2026.1
   特性: 极速IEPL专线 · 动态星光脉冲 · 全价格同排 · 极致移动端适配 · 全SEO优化
   ========================================================================== */

:root {
  --color-bg-dark: #070c18;
  --color-bg-card: rgba(15, 23, 42, 0.75);
  --color-bg-card-hover: rgba(30, 41, 59, 0.85);
  --color-border: rgba(56, 189, 248, 0.15);
  --color-border-glow: rgba(56, 189, 248, 0.4);
  --color-primary: #0284c7;
  --color-primary-light: #38bdf8;
  --color-accent: #00f0ff;
  --color-text-main: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-text-sub: #cbd5e1;
  --color-price: #f59e0b;
  --color-badge: #10b981;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --transition-normal: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-glow: 0 0 25px rgba(2, 132, 199, 0.25);
  --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--color-border);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg-dark);
  color: var(--color-text-main);
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* 动态背景画布 */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.85;
}

/* 页面主体内容层 */
.site-wrapper {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* 通用容器 */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* 链接基础样式 */
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-normal);
}

/* 按钮规范 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-normal);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(2, 132, 199, 0.4);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(14, 165, 233, 0.6);
}

.btn-accent {
  background: linear-gradient(135deg, #00f0ff 0%, #0284c7 100%);
  color: #04101e;
  font-weight: 700;
  box-shadow: 0 4px 18px rgba(0, 240, 255, 0.35);
}

.btn-accent:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(0, 240, 255, 0.55);
}

.btn-outline {
  background: rgba(15, 23, 42, 0.6);
  border-color: rgba(56, 189, 248, 0.3);
  color: #e2e8f0;
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(30, 41, 59, 0.8);
  border-color: var(--color-primary-light);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 15px 32px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(7, 12, 24, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

/* 左侧 Logo 规范 */
.brand-logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo-img {
  height: 42px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(0, 240, 255, 0.3));
}

.brand-text-box {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff 0%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-subtitle {
  font-size: 0.72rem;
  color: var(--color-primary-light);
  letter-spacing: 0.05em;
  font-weight: 500;
}

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

.nav-link {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--color-text-sub);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover, .nav-link.active {
  color: #ffffff;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #38bdf8, #00f0ff);
  transition: width 0.25s ease;
  border-radius: 2px;
}

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

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

/* 移动端汉堡按钮 */
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  color: #ffffff;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle svg {
  width: 26px;
  height: 26px;
  stroke: #ffffff;
}

/* 移动端抽屉菜单 */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  width: 100%;
  height: calc(100vh - 72px);
  background: rgba(7, 12, 24, 0.98);
  backdrop-filter: blur(20px);
  padding: 24px;
  flex-direction: column;
  gap: 16px;
  z-index: 999;
  overflow-y: auto;
}

.mobile-drawer.open {
  display: flex;
}

.mobile-drawer .nav-link {
  font-size: 1.15rem;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  display: block;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 820px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 130px 0 70px 0;
  overflow: hidden;
}

/* ==========================================================================
   全景《山海经》青丘九尾灵狐背景系统 (整块全景覆盖背景，显眼震撼)
   ========================================================================== */
.hero-fox-fullbg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}

.hero-fox-fullbg-img {
  position: absolute;
  top: -12%;
  left: -10%;
  width: 120%;
  height: 125%;
  object-fit: cover;
  object-position: 70% center;
  /* 《山海经》九尾仙狐与沧海巨月：显眼醒目、色彩明艳 */
  filter: brightness(0.96) contrast(1.1) saturate(1.18);
  /* 增大浮动幅度：磅礴仙境起伏律动 */
  animation: grandFoxBgMotion 18s ease-in-out infinite;
  will-change: transform;
}

@keyframes grandFoxBgMotion {
  0% {
    transform: scale(1.0) translate3d(0, 0, 0);
  }
  25% {
    transform: scale(1.06) translate3d(-40px, -24px, 0);
  }
  50% {
    transform: scale(1.11) translate3d(-18px, 32px, 0);
  }
  75% {
    transform: scale(1.06) translate3d(36px, 14px, 0);
  }
  100% {
    transform: scale(1.0) translate3d(0, 0, 0);
  }
}

.hero-fox-fullbg-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  /* 
   * 《山海经》九尾狐显眼通透遮罩：
   * 1. 左侧渐变：保护文字内容区的高清对比度与可读性；
   * 2. 右侧大面积通透明亮：让山海经九尾神狐与巨月翻浪完全显现；
   * 3. 底部自然融入深蓝底色 #070c18，顶部自然过渡 Header。
   */
  background: 
    linear-gradient(90deg, 
      rgba(7, 12, 24, 0.94) 0%, 
      rgba(7, 12, 24, 0.82) 35%, 
      rgba(7, 12, 24, 0.45) 58%, 
      rgba(7, 12, 24, 0.08) 75%, 
      rgba(7, 12, 24, 0.22) 100%
    ),
    linear-gradient(to bottom, 
      rgba(7, 12, 24, 0.45) 0%, 
      transparent 25%, 
      rgba(7, 12, 24, 0.3) 75%, 
      #070c18 100%
    );
}

.hero-content-col {
  text-align: left;
  position: relative;
  z-index: 2;
  max-width: 780px;
  margin-bottom: 44px;
}

.hero-badge-wrap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(245, 158, 11, 0.14);
  border: 1px solid rgba(245, 158, 11, 0.45);
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fbbf24;
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background-color: #f59e0b;
  border-radius: 50%;
  box-shadow: 0 0 10px #f59e0b;
  animation: pulseDot 2s infinite;
}

.hero-title {
  font-size: 2.9rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin-bottom: 18px;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.9);
}

.hero-title-highlight {
  background: linear-gradient(135deg, #f59e0b 0%, #fb923c 45%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  white-space: nowrap;
  text-shadow: none;
  filter: drop-shadow(0 2px 14px rgba(245, 158, 11, 0.4));
}

.hero-desc {
  max-width: 620px;
  margin: 0 0 30px 0;
  font-size: 1.05rem;
  color: #cbd5e1;
  line-height: 1.8;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.85);
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

/* ==========================================================================
   Keyword Ribbon (SEO 核心关键词并行整齐排列)
   ========================================================================== */
.keyword-ribbon-wrapper {
  margin: 0 0 32px 0;
  max-width: 680px;
}

.keyword-ribbon-header {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: #38bdf8;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.keyword-ribbon-header svg {
  color: #00f0ff;
}

.keyword-ribbon {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
}

.keyword-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 12px;
  font-size: 0.825rem;
  font-weight: 500;
  color: #cbd5e1;
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid rgba(56, 189, 248, 0.22);
  border-radius: 6px;
  white-space: nowrap;
  text-decoration: none;
  transition: all 0.22s ease;
  backdrop-filter: blur(8px);
}

.keyword-tag svg {
  width: 14px;
  height: 14px;
  color: #38bdf8;
  flex-shrink: 0;
  transition: transform 0.2s ease, color 0.2s ease;
}

.keyword-tag span {
  white-space: nowrap;
  line-height: 1;
}

.keyword-tag:hover {
  color: #ffffff;
  background: rgba(14, 165, 233, 0.22);
  border-color: #00f0ff;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(0, 240, 255, 0.25);
}

.keyword-tag:hover svg {
  color: #00f0ff;
  transform: scale(1.15);
}

.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 960px;
  margin: 0 auto;
}

.stat-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 12px;
  backdrop-filter: blur(10px);
  text-align: center;
}

.stat-number {
  font-size: 1.85rem;
  font-weight: 800;
  color: #38bdf8;
  font-feature-settings: "tnum";
}

.stat-label {
  font-size: 0.825rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* ==========================================================================
   Section Universal Styles
   ========================================================================== */
.section {
  padding: 80px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px auto;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #00f0ff;
  margin-bottom: 10px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

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

/* ==========================================================================
   Pricing Section (所有价格必须同排)
   ========================================================================== */
.pricing-section {
  background: radial-gradient(circle at 50% 30%, rgba(2, 132, 199, 0.08) 0%, transparent 70%);
}

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

.billing-toggle {
  display: inline-flex;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--color-border);
  border-radius: 9999px;
  padding: 4px;
}

.billing-btn {
  background: transparent;
  border: none;
  padding: 8px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-muted);
  border-radius: 9999px;
  cursor: pointer;
  transition: var(--transition-normal);
}

.billing-btn.active {
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 2px 10px rgba(2, 132, 199, 0.4);
}

.discount-pill {
  font-size: 0.72rem;
  background: rgba(16, 185, 129, 0.2);
  color: #10b981;
  padding: 2px 8px;
  border-radius: 9999px;
  margin-left: 4px;
}

/* 所有价格同排 Grid 容器 */
.pricing-row-container {
  width: 100%;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: stretch; /* 保证所有卡片等高 */
}

.pricing-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition-normal);
  backdrop-filter: blur(14px);
}

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

.pricing-card.featured {
  background: linear-gradient(180deg, rgba(2, 132, 199, 0.15) 0%, rgba(15, 23, 42, 0.9) 100%);
  border-color: rgba(56, 189, 248, 0.6);
  box-shadow: 0 10px 30px rgba(2, 132, 199, 0.25);
}

.featured-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, #0284c7, #00f0ff);
  color: #04101e;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.plan-header {
  margin-bottom: 20px;
  min-height: 58px;
}

.plan-name {
  font-size: 1.3rem;
  font-weight: 800;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.plan-tagline {
  font-size: 0.825rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* 核心定价部分 - 保证价格数字同排对齐 */
.plan-price-box {
  display: flex;
  align-items: baseline;
  gap: 4px;
  padding: 16px 0;
  margin-bottom: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  min-height: 72px;
}

.plan-currency {
  font-size: 1.35rem;
  font-weight: 700;
  color: #38bdf8;
}

.plan-amount {
  font-size: 2.6rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
  font-feature-settings: "tnum";
}

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

.plan-traffic-highlight {
  font-size: 0.95rem;
  font-weight: 700;
  color: #00f0ff;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* 特权清单 - 撑开剩余空间 */
.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 11px;
  margin-bottom: 24px;
  flex-grow: 1;
}

.plan-features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-text-sub);
  line-height: 1.4;
}

.plan-features li svg {
  width: 16px;
  height: 16px;
  stroke: #10b981;
  flex-shrink: 0;
  margin-top: 2px;
}

.plan-cta-box {
  margin-top: auto;
}

.pricing-note {
  text-align: center;
  margin-top: 32px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Features & Core Advantages
   ========================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  backdrop-filter: blur(12px);
  transition: var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-glow);
  box-shadow: 0 12px 30px -10px rgba(2, 132, 199, 0.3);
}

.feature-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(2, 132, 199, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: #38bdf8;
}

.feature-icon-wrap svg {
  width: 26px;
  height: 26px;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #ffffff;
}

.feature-text {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ==========================================================================
   Speedtest & Latency Monitor Section
   ========================================================================== */
.speed-test-box {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(14px);
}

.nodes-table-wrap {
  width: 100%;
  overflow-x: auto;
}

.nodes-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.nodes-table th, .nodes-table td {
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.9rem;
}

.nodes-table th {
  color: var(--color-text-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.775rem;
  letter-spacing: 0.05em;
}

.node-region-cell {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: #ffffff;
}

.node-flag {
  font-size: 1.2rem;
}

.latency-good {
  color: #10b981;
  font-weight: 700;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 9999px;
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  font-size: 0.75rem;
  font-weight: 600;
}

/* ==========================================================================
   Client Downloads & External Links
   ========================================================================== */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.client-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.client-card:hover {
  border-color: var(--color-primary-light);
  transform: translateY(-4px);
}

.client-logo-wrap {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.client-logo-wrap svg {
  width: 30px;
  height: 30px;
  color: #38bdf8;
}

.client-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
}

.client-platform {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 14px;
}

.client-link {
  font-size: 0.825rem;
  color: #38bdf8;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.client-link:hover {
  color: #00f0ff;
  text-decoration: underline;
}

/* ==========================================================================
   Articles Section (800-1500字文章展示区)
   ========================================================================== */
.articles-section {
  background: radial-gradient(circle at 50% 50%, rgba(2, 132, 199, 0.06) 0%, transparent 80%);
}

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

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

.article-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary-light);
  box-shadow: 0 10px 25px rgba(2, 132, 199, 0.2);
}

.article-badge-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.article-category {
  font-size: 0.75rem;
  font-weight: 700;
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.1);
  padding: 2px 10px;
  border-radius: 9999px;
}

.article-read-time {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

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

.article-title a:hover {
  color: #38bdf8;
}

.article-excerpt {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.article-footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 14px;
  margin-top: auto;
}

.article-keywords-small {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.keyword-micro-tag {
  font-size: 0.72rem;
  color: #64748b;
  background: rgba(255, 255, 255, 0.03);
  padding: 1px 6px;
  border-radius: 4px;
}

.article-read-btn {
  font-size: 0.85rem;
  font-weight: 600;
  color: #38bdf8;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

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

.testimonial-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  transition: var(--transition-normal);
}

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

.testimonial-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0284c7, #00f0ff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #04101e;
  font-size: 1.1rem;
}

.testimonial-user-info {
  display: flex;
  flex-direction: column;
}

.testimonial-name {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
}

.testimonial-role {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.rating-stars {
  color: #f59e0b;
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.testimonial-content {
  font-size: 0.9rem;
  color: var(--color-text-sub);
  line-height: 1.65;
  font-style: italic;
  flex-grow: 1;
}

.testimonial-verified-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.75rem;
  color: #10b981;
  font-weight: 600;
}

/* ==========================================================================
   FAQ Section (常见问题)
   ========================================================================== */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

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

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: transparent;
  border: none;
  color: #ffffff;
  font-size: 1.05rem;
  font-weight: 700;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.faq-icon {
  width: 20px;
  height: 20px;
  stroke: #38bdf8;
  transition: transform 0.28s ease;
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 0 24px;
  color: var(--color-text-muted);
  font-size: 0.925rem;
  line-height: 1.75;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding-bottom: 22px;
}

/* ==========================================================================
   Call To Action (CTA Banner)
   ========================================================================== */
.cta-banner {
  background: linear-gradient(135deg, rgba(2, 132, 199, 0.3) 0%, rgba(15, 23, 42, 0.9) 100%);
  border: 1px solid rgba(56, 189, 248, 0.4);
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  text-align: center;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  margin-top: 40px;
}

.cta-title {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: #ffffff;
}

.cta-desc {
  max-width: 680px;
  margin: 0 auto 32px auto;
  font-size: 1.1rem;
  color: var(--color-text-sub);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: #040812;
  border-top: 1px solid rgba(56, 189, 248, 0.12);
  padding: 60px 0 30px 0;
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-col-brand .brand-logo-img {
  height: 38px;
  margin-bottom: 16px;
}

.footer-about-text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: 20px;
}

.footer-col-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 18px;
  letter-spacing: 0.03em;
}

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

.footer-links-list a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.footer-links-list a:hover {
  color: #38bdf8;
  padding-left: 4px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 24px;
  font-size: 0.8rem;
  color: #64748b;
  flex-wrap: wrap;
  gap: 12px;
}

/* ==========================================================================
   Article Pages Specific Layout
   ========================================================================== */
.article-header {
  padding: 40px 0 30px 0;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.article-breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.article-page-title {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 20px;
  color: #ffffff;
}

.article-meta-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  flex-wrap: wrap;
}

.article-layout-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  padding: 48px 0;
}

.article-sidebar {
  position: sticky;
  top: 96px;
  height: fit-content;
}

.toc-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 24px;
}

.toc-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 14px;
}

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

.toc-list a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  display: block;
  line-height: 1.4;
}

.toc-list a:hover {
  color: #38bdf8;
}

.article-body-content {
  color: #e2e8f0;
  font-size: 1.05rem;
  line-height: 1.85;
}

.article-body-content h2 {
  font-size: 1.7rem;
  font-weight: 800;
  color: #ffffff;
  margin: 36px 0 18px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(56, 189, 248, 0.2);
}

.article-body-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: #38bdf8;
  margin: 28px 0 14px 0;
}

.article-body-content p {
  margin-bottom: 20px;
}

.article-body-content ul, .article-body-content ol {
  margin-bottom: 24px;
  padding-left: 24px;
}

.article-body-content li {
  margin-bottom: 8px;
}

.article-callout {
  background: rgba(2, 132, 199, 0.12);
  border-left: 4px solid var(--color-primary-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 18px 20px;
  margin: 28px 0;
  font-size: 0.95rem;
  color: #cbd5e1;
}

.article-cta-box {
  background: linear-gradient(135deg, rgba(2, 132, 199, 0.2) 0%, rgba(15, 23, 42, 0.8) 100%);
  border: 1px solid rgba(56, 189, 248, 0.4);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  margin: 36px 0;
}

/* ==========================================================================
   Responsive Mobile Adaptation (移动端适配)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.6rem;
  }
  
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .clients-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .article-layout-grid {
    grid-template-columns: 1fr;
  }
  
  .article-sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  .nav-menu, .nav-cta-box {
    display: none;
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-desc {
    font-size: 0.95rem;
  }
  
  .hero-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* 移动端价格卡片保持并排横向平滑滑动 (所有价格同排查看) */
  .pricing-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 16px;
    padding-bottom: 20px;
    -webkit-overflow-scrolling: touch;
  }
  
  .pricing-card {
    min-width: 280px;
    max-width: 300px;
    flex-shrink: 0;
    scroll-snap-align: center;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .clients-grid {
    grid-template-columns: 1fr;
  }
  
  .articles-grid {
    grid-template-columns: 1fr;
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-title {
    font-size: 1.8rem;
  }
  
  .cta-banner {
    padding: 36px 20px;
  }
}

/* ==========================================================================
   动态灵狐元素视觉系统 (Dynamic Fox Visual System)
   ========================================================================== */
.hero-fox-ambient {
  position: absolute;
  top: 48%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 520px;
  height: 450px;
  max-width: 95vw;
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
  filter: drop-shadow(0 0 40px rgba(0, 240, 255, 0.4));
  animation: foxFloat 6s ease-in-out infinite;
}

@keyframes foxFloat {
  0%, 100% {
    transform: translate(-50%, -50%) translateY(0) scale(1);
    opacity: 0.28;
  }
  50% {
    transform: translate(-50%, -50%) translateY(-16px) scale(1.05);
    opacity: 0.48;
  }
}

.fox-svg-crest {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 15px rgba(56, 189, 248, 0.6));
}

/* ==========================================================================
   响应式断点适配 (Responsive Breakpoints)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-section {
    padding: 110px 0 60px 0;
    min-height: auto;
  }
  .hero-content-col {
    text-align: center;
    max-width: 100%;
    margin-bottom: 36px;
  }
  .hero-desc {
    margin: 0 auto 30px auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .keyword-ribbon-wrapper {
    margin: 0 auto 28px auto;
  }
  .keyword-ribbon-header {
    justify-content: center;
  }
  .keyword-ribbon {
    justify-content: center;
  }
  .hero-fox-fullbg-img {
    object-position: 50% 20%;
    opacity: 0.7;
  }
  .hero-fox-fullbg-overlay {
    background: 
      linear-gradient(to bottom, 
        rgba(7, 12, 24, 0.72) 0%, 
        rgba(7, 12, 24, 0.85) 45%, 
        rgba(7, 12, 24, 0.95) 85%, 
        #070c18 100%
      );
  }
}

@media (max-width: 640px) {
  .keyword-tag {
    height: 30px;
    padding: 0 10px;
    font-size: 0.78rem;
  }
  .keyword-tag svg {
    width: 12px;
    height: 12px;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}