/* ==========================================================================
   龙猫云 TotoroCloud (totorocloud.org) - 官方极简浅色美学体系
   Pure Native CSS - 0 外部依赖 - 像素级对标 totorocloud.org
   核心理念: A quieter way to connect · 从一张安静的工作台，开始理解每一次连接
   ========================================================================== */

:root {
  /* 官方浅色美学调色板：纯净暖白、高级雾面灰、典雅科技蓝 */
  --bg-primary: #fbfbfd;
  --bg-secondary: #f5f5f7;
  --bg-tertiary: #ebebed;
  --bg-card: #ffffff;
  --bg-card-glass: rgba(255, 255, 255, 0.82);
  --bg-card-hover: #ffffff;
  --bg-subtle: rgba(0, 0, 0, 0.025);

  --border-color: rgba(0, 0, 0, 0.08);
  --border-color-hover: rgba(37, 99, 235, 0.4);
  --border-light: rgba(0, 0, 0, 0.04);

  --accent-blue: #0071e3;
  --accent-blue-hover: #0077ed;
  --accent-cyan: #0284c7;
  --accent-indigo: #4f46e5;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #e11d48;

  --gradient-brand: linear-gradient(135deg, #0ea5e9 0%, #0071e3 50%, #4f46e5 100%);
  --gradient-btn: linear-gradient(135deg, #0ea5e9 0%, #0071e3 100%);
  --gradient-btn-hover: linear-gradient(135deg, #38bdf8 0%, #0077ed 100%);
  --gradient-featured: linear-gradient(180deg, rgba(239, 246, 255, 0.8) 0%, #ffffff 100%);

  --text-primary: #1d1d1f;
  --text-secondary: #515154;
  --text-muted: #86868b;

  --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.03);
  --shadow-card: 0 10px 30px -8px rgba(0, 0, 0, 0.06);
  --shadow-card-hover: 0 20px 40px -12px rgba(0, 0, 0, 0.1);
  --shadow-featured: 0 16px 45px -10px rgba(0, 113, 227, 0.22);
  --shadow-glow: 0 0 35px rgba(0, 113, 227, 0.15);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  --radius-full: 9999px;

  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro SC", "SF Pro Text", "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "SF Mono", "Fira Code", Consolas, Menlo, monospace;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  line-height: 1.6;
  overflow-x: hidden;
  background: 
    radial-gradient(circle at 50% 0%, rgba(14, 165, 233, 0.08) 0%, transparent 60%),
    radial-gradient(circle at 90% 25%, rgba(99, 102, 241, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 10% 70%, rgba(0, 113, 227, 0.05) 0%, transparent 50%),
    var(--bg-primary);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.25s ease;
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ==========================================================================
   Typography & Badges
   ========================================================================== */

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: #ffffff;
  border: 1px solid rgba(0, 113, 227, 0.2);
  border-radius: var(--radius-full);
  color: var(--accent-blue);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
  box-shadow: 0 2px 10px rgba(0, 113, 227, 0.06);
}

.section-tag .dot {
  width: 7px;
  height: 7px;
  background: var(--accent-blue);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-blue);
  animation: pulse-dot 2s infinite;
}

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

.section-header {
  text-align: center;
  max-width: 740px;
  margin: 0 auto 56px auto;
}

.section-title {
  font-size: 2.45rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.section-title .gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* ==========================================================================
   Buttons (Apple/totorocloud.org 官方温润胶囊按钮)
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  text-align: center;
  user-select: none;
}

.btn-primary {
  background: var(--gradient-btn);
  color: #ffffff;
  box-shadow: 0 4px 18px rgba(0, 113, 227, 0.28);
}

.btn-primary:hover {
  background: var(--gradient-btn-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 113, 227, 0.4);
  color: #ffffff;
}

.btn-secondary {
  background: #ffffff;
  color: var(--text-primary);
  border-color: rgba(0, 0, 0, 0.12);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.btn-secondary:hover {
  background: #f5f5f7;
  border-color: rgba(0, 0, 0, 0.2);
  transform: translateY(-2px);
  color: #000000;
}

.btn-large {
  padding: 15px 36px;
  font-size: 1.08rem;
}

.btn-icon {
  width: 18px;
  height: 18px;
  transition: transform 0.2s ease;
}

.btn:hover .btn-icon {
  transform: translateX(3px);
}

/* ==========================================================================
   Navbar (浅色高级毛玻璃吸顶导航)
   ========================================================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all 0.3s ease;
  background: rgba(251, 251, 253, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #0ea5e9, #0071e3);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 113, 227, 0.3);
}

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

.logo-text-group {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.1;
  color: #1d1d1f;
}

.logo-subtitle {
  font-size: 0.72rem;
  color: var(--accent-blue);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.nav-link:hover {
  color: var(--accent-blue);
}

.nav-link.badge-news {
  position: relative;
}

.nav-link.badge-news::after {
  content: "HOT";
  position: absolute;
  top: -8px;
  right: -24px;
  background: linear-gradient(135deg, #e11d48, #f43f5e);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 800;
  padding: 1px 6px;
  border-radius: 6px;
  letter-spacing: 0.05em;
}

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

.nav-btn-login {
  padding: 8px 18px;
  font-size: 0.88rem;
  color: var(--text-primary);
}

.nav-btn-signup {
  padding: 8px 22px;
  font-size: 0.88rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text-primary);
}

/* ==========================================================================
   Hero Section (安静的工作台 · 顷刻加载，眨眼之间)
   ========================================================================== */

.hero {
  position: relative;
  padding: 160px 0 90px 0;
  text-align: center;
  overflow: hidden;
}

.hero-tagline {
  font-size: 0.92rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-blue);
  font-weight: 700;
  margin-bottom: 14px;
}

.hero-promo-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 22px;
  background: #ffffff;
  border: 1px solid rgba(0, 113, 227, 0.25);
  border-radius: var(--radius-full);
  color: var(--accent-blue);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 24px;
  box-shadow: 0 4px 15px rgba(0, 113, 227, 0.08);
}

.hero-promo-badge .badge-tag {
  background: var(--accent-blue);
  color: #fff;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
}

.hero-title {
  font-size: 3.9rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 22px;
  letter-spacing: -0.035em;
  color: #1d1d1f;
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
}

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

.hero-subtitle {
  font-size: 1.25rem;
  color: #515154;
  max-width: 800px;
  margin: 0 auto 38px auto;
  line-height: 1.8;
  font-weight: 400;
}

.hero-subtitle strong {
  color: #1d1d1f;
  font-weight: 600;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.hero-trust-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  color: var(--text-secondary);
  font-size: 0.92rem;
  flex-wrap: wrap;
  padding-top: 24px;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.trust-item svg {
  color: var(--accent-blue);
  width: 18px;
  height: 18px;
}

/* ==========================================================================
   Platform Features (平台核心特性 5 支柱)
   ========================================================================== */

.features-section {
  padding: 100px 0;
  position: relative;
}

.features-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  margin-bottom: 26px;
}

.features-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}

.feature-box {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 38px 32px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  box-shadow: var(--shadow-card);
}

.feature-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity 0.3s ease;
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
}

.feature-box:hover {
  transform: translateY(-5px);
  border-color: var(--border-color-hover);
  box-shadow: var(--shadow-card-hover);
}

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

.feature-icon-wrapper {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-md);
  background: rgba(0, 113, 227, 0.08);
  border: 1px solid rgba(0, 113, 227, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--accent-blue);
}

.feature-icon-wrapper svg {
  width: 28px;
  height: 28px;
}

.feature-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #1d1d1f;
}

.feature-desc {
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==========================================================================
   Application Scenarios (4 大核心使用场景板块)
   ========================================================================== */

.scenarios-section {
  padding: 90px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.scenario-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  transition: all 0.25s ease;
  box-shadow: var(--shadow-subtle);
}

.scenario-card:hover {
  border-color: var(--accent-blue);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.scenario-badge {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: rgba(0, 113, 227, 0.08);
  color: var(--accent-blue);
  display: inline-block;
  margin-bottom: 14px;
}

.scenario-title {
  font-size: 1.18rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #1d1d1f;
}

.scenario-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 18px;
}

.scenario-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.scenario-tag-item {
  font-size: 0.75rem;
  padding: 3px 9px;
  border-radius: var(--radius-full);
  background: #f5f5f7;
  color: #515154;
  border: 1px solid rgba(0, 0, 0, 0.04);
}

/* ==========================================================================
   Pricing Section (浅色清爽卡片 · 全套餐不限设备数)
   ========================================================================== */

.pricing-section {
  padding: 100px 0;
  position: relative;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

.pricing-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 42px 34px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: var(--shadow-card);
}

.pricing-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 113, 227, 0.35);
  box-shadow: var(--shadow-card-hover);
}

.pricing-card.featured {
  background: var(--gradient-featured);
  border: 2px solid var(--accent-blue);
  box-shadow: var(--shadow-featured);
  transform: scale(1.03);
}

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

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-btn);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.78rem;
  padding: 5px 20px;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: 0 4px 14px rgba(0, 113, 227, 0.35);
}

.plan-header {
  margin-bottom: 22px;
}

.plan-name {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 6px;
  color: #1d1d1f;
}

.plan-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.plan-price-wrapper {
  margin-bottom: 24px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.currency {
  font-size: 1.35rem;
  font-weight: 700;
  color: #1d1d1f;
}

.price {
  font-size: 3.3rem;
  font-weight: 800;
  line-height: 1;
  color: #1d1d1f;
  letter-spacing: -0.03em;
}

.pricing-card.featured .price {
  color: var(--accent-blue);
}

.period {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* 官方核心亮点：全套餐不限在线设备数 */
.plan-highlight-pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #f0f7ff;
  border: 1px solid rgba(0, 113, 227, 0.2);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--accent-blue);
}

.plan-features {
  margin-bottom: 36px;
  flex-grow: 1;
}

.plan-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 0.93rem;
  color: #334155;
}

.plan-feature-item svg {
  width: 18px;
  height: 18px;
  color: var(--accent-blue);
  flex-shrink: 0;
  margin-top: 2px;
}

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

/* ==========================================================================
   Why Choose Section (深度特性解析区)
   ========================================================================== */

.why-choose-section {
  padding: 100px 0;
  background: #ffffff;
  border-top: 1px solid var(--border-color);
}

.feature-split-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 90px;
}

.feature-split-row:last-child {
  margin-bottom: 0;
}

.split-content .badge {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(0, 113, 227, 0.08);
  color: var(--accent-blue);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.split-title {
  font-size: 2.15rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
  color: #1d1d1f;
}

.split-desc {
  font-size: 1.02rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.split-points {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.split-point-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #334155;
  font-size: 0.96rem;
}

.split-point-item svg {
  width: 20px;
  height: 20px;
  color: var(--accent-blue);
  flex-shrink: 0;
}

/* Data Dashboard Mock */
.data-dashboard-card {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
  position: relative;
}

.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  padding-bottom: 16px;
  margin-bottom: 24px;
}

.dashboard-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-green);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.metric-box {
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-md);
  padding: 18px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
}

.metric-val {
  font-size: 1.6rem;
  font-weight: 800;
  color: #1d1d1f;
  font-family: var(--font-mono);
}

.metric-val.cyan { color: var(--accent-blue); }
.metric-val.green { color: var(--accent-green); }
.metric-val.purple { color: #6366f1; }

.speed-meter-bar {
  background: #e2e8f0;
  border-radius: var(--radius-full);
  height: 8px;
  overflow: hidden;
  position: relative;
  margin-top: 10px;
}

.speed-meter-progress {
  height: 100%;
  width: 98%;
  background: var(--gradient-btn);
  border-radius: var(--radius-full);
}

/* Geek Terminal Mock (深色暗调在浅色页面中对比极其强烈出彩) */
.terminal-window {
  background: #0f172a;
  border: 1px solid #1e293b;
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 60px -15px rgba(15, 23, 42, 0.35);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.88rem;
}

.terminal-header {
  background: #1e293b;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.terminal-dots {
  display: flex;
  gap: 8px;
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.terminal-title {
  color: #94a3b8;
  font-size: 0.82rem;
}

.terminal-body {
  padding: 24px;
  line-height: 1.7;
}

.cmd-line {
  margin-bottom: 12px;
}

.cmd-prompt {
  color: #34d399;
  margin-right: 8px;
}

.cmd-command {
  color: #ffffff;
  font-weight: 600;
}

.cmd-output {
  color: #94a3b8;
  margin-bottom: 8px;
}

.cmd-output.success {
  color: #34d399;
  font-weight: 600;
}

.cmd-output.highlight {
  color: #38bdf8;
}

.cmd-cursor {
  display: inline-block;
  width: 8px;
  height: 15px;
  background: #38bdf8;
  animation: blink 1s infinite;
  vertical-align: middle;
}

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

/* ==========================================================================
   Testimonials Marquee Section
   ========================================================================== */

.testimonials-section {
  padding: 90px 0;
  position: relative;
  overflow: hidden;
  background: var(--bg-secondary);
}

.marquee-container {
  width: 100%;
  overflow: hidden;
  position: relative;
  padding: 20px 0;
}

.marquee-container::before,
.marquee-container::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 150px;
  z-index: 2;
  pointer-events: none;
}

.marquee-container::before {
  left: 0;
  background: linear-gradient(90deg, var(--bg-secondary) 0%, transparent 100%);
}

.marquee-container::after {
  right: 0;
  background: linear-gradient(-90deg, var(--bg-secondary) 0%, transparent 100%);
}

.marquee-track {
  display: flex;
  gap: 24px;
  width: max-content;
  animation: scroll-marquee 40s linear infinite;
}

.marquee-track:hover {
  animation-play-state: paused;
}

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

.testimonial-card {
  width: 360px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-subtle);
  transition: all 0.25s ease;
}

.testimonial-card:hover {
  border-color: rgba(0, 113, 227, 0.35);
  box-shadow: var(--shadow-card);
}

.rating-stars {
  display: flex;
  gap: 4px;
  color: var(--accent-amber);
  margin-bottom: 14px;
}

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

.testimonial-comment {
  font-size: 0.94rem;
  color: #334155;
  line-height: 1.65;
  margin-bottom: 20px;
}

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

.user-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0ea5e9, #0071e3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #ffffff;
  font-size: 0.95rem;
}

.user-meta .user-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: #1d1d1f;
}

.user-meta .user-role {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ==========================================================================
   FAQ Section (手风琴)
   ========================================================================== */

.faq-section {
  padding: 90px 0;
  background: #ffffff;
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.25s ease;
}

.faq-item:hover {
  border-color: rgba(0, 0, 0, 0.16);
  background: #ffffff;
}

.faq-item[open] {
  border-color: rgba(0, 113, 227, 0.4);
  background: #ffffff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.faq-question {
  padding: 22px 28px;
  font-size: 1.05rem;
  font-weight: 600;
  color: #1d1d1f;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  list-style: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-icon {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
  color: var(--accent-blue);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 28px 24px 28px;
  color: var(--text-secondary);
  font-size: 0.96rem;
  line-height: 1.75;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  padding-top: 16px;
}

/* ==========================================================================
   Bottom CTA Section
   ========================================================================== */

.cta-section {
  padding: 100px 0 120px 0;
  position: relative;
  background: var(--bg-primary);
}

.cta-box {
  background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 100%);
  border: 1px solid rgba(0, 113, 227, 0.25);
  border-radius: var(--radius-xl);
  padding: 60px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px -10px rgba(0, 113, 227, 0.15);
}

.cta-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
}

.cta-title {
  font-size: 2.6rem;
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
  color: #1d1d1f;
}

.cta-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 36px auto;
  line-height: 1.8;
}

.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  background: #f5f5f7;
  border-top: 1px solid var(--border-color);
  padding: 44px 0;
  text-align: center;
}

.footer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.footer-nav a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.footer-nav a:hover {
  color: var(--accent-blue);
}

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

/* ==========================================================================
   Subpages Content Styling (about, terms, privacy, sitemap, news)
   ========================================================================== */

.subpage-hero {
  padding: 140px 0 60px 0;
  text-align: center;
  background: radial-gradient(circle at 50% 20%, rgba(0, 113, 227, 0.08) 0%, transparent 60%);
}

.content-box {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 48px;
  margin: 40px auto 100px auto;
  max-width: 900px;
  box-shadow: var(--shadow-card);
  line-height: 1.85;
  color: #334155;
}

.content-box h2 {
  font-size: 1.55rem;
  color: #1d1d1f;
  margin: 34px 0 16px 0;
  border-left: 4px solid var(--accent-blue);
  padding-left: 14px;
}

.content-box h2:first-child { margin-top: 0; }
.content-box p { margin-bottom: 16px; font-size: 1rem; }
.content-box ul { margin-left: 20px; margin-bottom: 20px; }
.content-box li { list-style: disc; margin-bottom: 8px; }

/* ==========================================================================
   Responsive Queries
   ========================================================================== */

@media (max-width: 1024px) {
  .features-grid-3,
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
  }
  
  .scenarios-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-card.featured {
    transform: none;
  }
  
  .pricing-card.featured:hover {
    transform: translateY(-6px);
  }
  
  .features-grid-2 {
    grid-template-columns: 1fr;
  }
  
  .feature-split-row {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .hero-title {
    font-size: 2.9rem;
  }
}

@media (max-width: 768px) {
  .nav-menu,
  .nav-actions {
    display: none;
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .nav-menu.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    padding: 24px;
    gap: 20px;
  }
  
  .hero {
    padding: 130px 0 60px 0;
  }
  
  .hero-title {
    font-size: 2.2rem;
  }
  
  .hero-subtitle {
    font-size: 1.05rem;
  }
  
  .section-title {
    font-size: 1.85rem;
  }
  
  .scenarios-grid {
    grid-template-columns: 1fr;
  }

  .cta-title {
    font-size: 1.9rem;
  }
  
  .cta-box {
    padding: 40px 20px;
  }
  
  .metrics-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-nav {
    gap: 20px;
  }
}