/* ==========================================================================
   狗狗加速 DoggyGo - Kawaii Glass 风格系统
   官方域名: gougoujsvpn.mom
   设计语言: 奶油白、粉蓝/粉紫玻璃卡片、毛玻璃质感、漂浮泡泡、软弹动效
   ========================================================================== */

:root {
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --bg-gradient: linear-gradient(135deg, #FFF6F9 0%, #FFFDF8 35%, #F0F6FF 70%, #F5F0FF 100%);
  --bg-card: rgba(255, 255, 255, 0.76);
  --bg-card-hover: rgba(255, 255, 255, 0.92);
  --bg-card-highlight: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 240, 246, 0.85) 100%);
  
  --border-glass: 1px solid rgba(255, 255, 255, 0.85);
  --border-glass-highlight: 1.5px solid rgba(255, 126, 179, 0.4);
  --border-radius-sm: 12px;
  --border-radius-md: 20px;
  --border-radius-lg: 28px;
  --border-radius-pill: 9999px;

  --shadow-glass: 0 16px 36px rgba(185, 200, 230, 0.28);
  --shadow-glass-hover: 0 22px 48px rgba(165, 185, 220, 0.38);
  --shadow-btn-primary: 0 8px 22px rgba(255, 90, 141, 0.35);
  --shadow-btn-hover: 0 12px 28px rgba(255, 90, 141, 0.48);

  --color-primary: #FF5288;
  --color-primary-hover: #FF3B77;
  --color-secondary: #4E86FF;
  --color-secondary-hover: #3672F8;
  --color-accent: #9A65FF;
  --color-accent-amber: #FF9B38;
  --color-text-main: #2D3748;
  --color-text-muted: #6B7B96;
  --color-text-light: #8E9DB5;
  --color-success: #10B981;

  --glass-blur: blur(20px) saturate(180%);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  color: var(--color-text-main);
  background: var(--bg-gradient);
  background-attachment: fixed;
  min-height: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  width: 100%;
}

body {
  position: relative;
  overflow-x: hidden;
  width: 100%;
  line-height: 1.6;
}

/* 漂浮装饰泡泡背景 */
.ambient-bubble {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: -1;
  opacity: 0.6;
  filter: blur(40px);
  animation: floatOrb 16s ease-in-out infinite alternate;
}

.ambient-bubble-1 {
  width: 450px;
  height: 450px;
  top: -80px;
  right: -80px;
  background: radial-gradient(circle, rgba(255, 182, 218, 0.6) 0%, rgba(255, 225, 240, 0) 70%);
}

.ambient-bubble-2 {
  width: 500px;
  height: 500px;
  bottom: 10%;
  left: -120px;
  background: radial-gradient(circle, rgba(176, 215, 255, 0.55) 0%, rgba(220, 240, 255, 0) 70%);
  animation-duration: 22s;
}

.ambient-bubble-3 {
  width: 380px;
  height: 380px;
  top: 45%;
  right: 10%;
  background: radial-gradient(circle, rgba(225, 195, 255, 0.45) 0%, rgba(245, 235, 255, 0) 70%);
  animation-duration: 18s;
  animation-delay: -5s;
}

@keyframes floatOrb {
  0% { transform: translateY(0px) scale(1) rotate(0deg); }
  50% { transform: translateY(35px) scale(1.08) rotate(45deg); }
  100% { transform: translateY(-25px) scale(0.96) rotate(90deg); }
}

/* 容器与版心 */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 可爱玻璃卡片基类 */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--border-glass);
  box-shadow: var(--shadow-glass);
  border-radius: var(--border-radius-md);
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.5) 0%, rgba(255, 255, 255, 0) 100%);
  border-top-left-radius: inherit;
  border-top-right-radius: inherit;
  pointer-events: none;
}

.glass-card:hover {
  transform: translateY(-4px);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-glass-hover);
}

/* 按钮 - 软弹可爱效果 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--border-radius-pill);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  border: none;
  outline: none;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  user-select: none;
}

.btn-squishy {
  transform: translateZ(0);
}

.btn-squishy:hover {
  transform: translateY(-3px) scale(1.03);
}

.btn-squishy:active {
  transform: translateY(1px) scale(0.96);
}

.btn-primary {
  background: linear-gradient(135deg, #FF6294 0%, #FF3D79 100%);
  color: #FFFFFF;
  box-shadow: var(--shadow-btn-primary);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #FF72A0 0%, #F52D6C 100%);
  box-shadow: var(--shadow-btn-hover);
  color: #FFFFFF;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  color: var(--color-text-main);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 4px 14px rgba(180, 195, 220, 0.18);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-primary);
  border-color: rgba(255, 82, 136, 0.3);
}

.btn-gold {
  background: linear-gradient(135deg, #FFB03A 0%, #FF8D1A 100%);
  color: #FFFFFF;
  box-shadow: 0 8px 24px rgba(255, 145, 30, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-gold:hover {
  background: linear-gradient(135deg, #FFBB4E 0%, #FA8205 100%);
  box-shadow: 0 12px 30px rgba(255, 145, 30, 0.48);
  color: #FFFFFF;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.9rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.12rem;
}

/* 顶部导航栏 (毛玻璃悬浮药丸) */
.header-wrapper {
  position: sticky;
  top: 16px;
  z-index: 1000;
  padding: 0 20px;
  margin-bottom: 30px;
}

.navbar {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--border-glass);
  border-radius: var(--border-radius-pill);
  box-shadow: 0 10px 30px rgba(180, 195, 225, 0.22);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  flex-shrink: 0;
}

.nav-brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(255, 105, 150, 0.25);
  transition: transform 0.3s ease;
}

.nav-brand:hover .nav-brand-logo {
  transform: rotate(-8deg) scale(1.08);
}

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

.nav-brand-title {
  font-size: 1.12rem;
  font-weight: 800;
  background: linear-gradient(135deg, #FF3D79 0%, #8540F5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.3px;
  white-space: nowrap;
}

.nav-brand-sub {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  font-weight: 500;
  white-space: nowrap;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 4px;
  margin: 0 8px;
}

.nav-link {
  text-decoration: none;
  color: var(--color-text-main);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--border-radius-pill);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
  background: rgba(255, 82, 136, 0.08);
}

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

.nav-btn-login {
  color: var(--color-text-main);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--border-radius-pill);
  transition: all 0.2s ease;
}

.nav-btn-login:hover {
  background: rgba(0, 0, 0, 0.04);
  color: var(--color-primary);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text-main);
  padding: 4px;
}

/* Hero 首屏区 */
.hero-section {
  padding: 30px 0 60px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 40px;
}

.hero-badge-wrap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(255, 235, 245, 0.8);
  border: 1px solid rgba(255, 140, 185, 0.4);
  border-radius: var(--border-radius-pill);
  color: #E63970;
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 20px;
  box-shadow: 0 4px 12px rgba(255, 100, 150, 0.12);
}

.hero-title {
  font-size: 3.2rem;
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
  color: #1F2937;
}

.hero-subtitle {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(90deg, #4E86FF 0%, #9A65FF 50%, #FF5288 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 20px;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 580px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.hero-features-bar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  flex-wrap: wrap;
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.hero-feature-icon {
  font-size: 1.15rem;
}

/* Hero 右侧可爱 3D 插画展示区 */
.hero-visual-card {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.hero-illustration-wrapper {
  position: relative;
  width: 100%;
  max-width: 480px;
}

.hero-puppy-svg {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 20px 30px rgba(220, 180, 210, 0.35));
  animation: puppyBreath 4s ease-in-out infinite alternate;
}

@keyframes puppyBreath {
  0% { transform: translateY(0px) rotate(0deg); }
  100% { transform: translateY(-8px) rotate(0.8deg); }
}

.float-badge {
  position: absolute;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.95);
  padding: 8px 16px;
  border-radius: var(--border-radius-pill);
  box-shadow: 0 8px 24px rgba(170, 190, 220, 0.25);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 700;
  color: #1F2937;
  animation: floatSmall 5s ease-in-out infinite alternate;
}

.float-badge-top {
  top: 10%;
  right: -10px;
  animation-delay: -2s;
}

.float-badge-bottom {
  bottom: 8%;
  left: -15px;
  animation-delay: -3.5s;
}

.status-dot-active {
  width: 10px;
  height: 10px;
  background-color: #10B981;
  border-radius: 50%;
  box-shadow: 0 0 10px #10B981;
}

@keyframes floatSmall {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-10px); }
}

/* 核心特性区 (三大卡片) */
.section {
  padding: 60px 0;
  position: relative;
}

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

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-primary);
  font-size: 0.95rem;
  font-weight: 800;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 900;
  color: #1A202C;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-muted);
}

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

.feature-card {
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.feature-icon-box {
  width: 58px;
  height: 58px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 235, 245, 0.6) 100%);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 6px 18px rgba(220, 190, 215, 0.25);
}

.feature-card h3 {
  font-size: 1.35rem;
  font-weight: 800;
  color: #1A202C;
}

.feature-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* 客户端支持专区 */
.client-section {
  padding: 50px 0;
}

.client-card-inner {
  padding: 40px;
}

.client-platforms-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 36px;
}

.platform-pill {
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: var(--border-radius-sm);
  padding: 18px 12px;
  text-align: center;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: inherit;
}

.platform-pill:hover {
  background: rgba(255, 255, 255, 0.95);
  transform: translateY(-4px);
  box-shadow: 0 10px 22px rgba(180, 200, 230, 0.25);
  border-color: rgba(255, 100, 150, 0.35);
}

.platform-icon {
  font-size: 2.2rem;
}

.platform-name {
  font-weight: 700;
  font-size: 1.05rem;
  color: #2D3748;
}

.platform-desc {
  font-size: 0.76rem;
  color: var(--color-text-light);
}

.client-mockup-banner {
  background: linear-gradient(135deg, rgba(240, 246, 255, 0.6) 0%, rgba(255, 240, 248, 0.6) 100%);
  border-radius: var(--border-radius-md);
  padding: 30px;
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 24px;
}

.device-showcase-item {
  display: flex;
  align-items: center;
  gap: 14px;
}

.device-badge-screen {
  background: #FFFFFF;
  padding: 10px 18px;
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(160, 180, 210, 0.2);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  color: #374151;
}

/* 兼容应用矩阵 */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.app-card {
  padding: 22px 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.app-icon-wrap {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
}

.app-icon-wrap.pink { background: rgba(255, 90, 141, 0.12); color: #FF3D79; }
.app-icon-wrap.blue { background: rgba(78, 134, 255, 0.12); color: #3672F8; }
.app-icon-wrap.purple { background: rgba(154, 101, 255, 0.12); color: #8540F5; }
.app-icon-wrap.gold { background: rgba(255, 155, 56, 0.12); color: #FF8D1A; }
.app-icon-wrap.cyan { background: rgba(20, 184, 166, 0.12); color: #0D9488; }

.app-card h4 {
  font-size: 1rem;
  font-weight: 800;
  color: #1F2937;
}

.app-card p {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   套餐方案 (严格按照图二价格体系：三档套餐，均 8 台设备全节点)
   月付 ¥25/月 | 年付 ¥168/年 (折合14/月 最受欢迎) | 两年付 ¥288/两年 (折合12/月)
   ========================================================================== */
.pricing-section {
  padding: 60px 0 80px;
  position: relative;
}

.pricing-highlight-banner {
  background: rgba(255, 245, 230, 0.8);
  border: 1px solid rgba(255, 180, 80, 0.35);
  border-radius: var(--border-radius-pill);
  padding: 10px 24px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  font-size: 0.95rem;
  font-weight: 700;
  color: #C05621;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
  padding-top: 24px;
}

.price-card {
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: visible !important;
}

/* 推荐热门卡片 */
.price-card-popular {
  background: var(--bg-card-highlight);
  border: var(--border-glass-highlight);
  transform: scale(1.04);
  box-shadow: 0 24px 50px rgba(255, 120, 170, 0.28);
  z-index: 5;
}

.price-card-popular:hover {
  transform: scale(1.06) translateY(-6px);
  box-shadow: 0 28px 60px rgba(255, 100, 160, 0.38);
}

.popular-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #FF9500 0%, #FF6000 100%);
  color: #FFFFFF;
  font-size: 0.82rem;
  font-weight: 800;
  padding: 6px 20px;
  border-radius: var(--border-radius-pill);
  box-shadow: 0 4px 14px rgba(255, 100, 0, 0.35);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
  z-index: 20;
}

.price-card-header {
  border-bottom: 1px dashed rgba(0, 0, 0, 0.08);
  padding-bottom: 24px;
  margin-bottom: 24px;
  text-align: center;
}

.plan-name {
  font-size: 1.35rem;
  font-weight: 800;
  color: #1A202C;
  margin-bottom: 8px;
}

.plan-price-wrap {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
  margin-bottom: 8px;
}

.price-currency {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-primary);
}

.price-number {
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1;
  color: #1F2937;
  letter-spacing: -1px;
}

.price-period {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  font-weight: 600;
}

.plan-subtext {
  font-size: 0.88rem;
  color: #D946EF;
  font-weight: 700;
}

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

.plan-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  color: #4A5568;
}

.plan-feature-icon {
  color: var(--color-success);
  font-weight: 800;
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.price-card-footer {
  margin-top: auto;
}

.pricing-note {
  margin-top: 36px;
  text-align: center;
  font-size: 0.92rem;
  color: var(--color-text-muted);
  background: rgba(255, 255, 255, 0.6);
  padding: 14px 24px;
  border-radius: var(--border-radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.8);
  display: inline-block;
}

/* 评测与真实好评墙 (User Reviews) */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.review-card {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.review-stars {
  color: #F59E0B;
  font-size: 1.1rem;
  letter-spacing: 2px;
}

.review-content {
  font-size: 0.95rem;
  color: #4A5568;
  line-height: 1.65;
  font-style: italic;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
}

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #FFB2D0 0%, #C2DCFF 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.review-info h5 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #1F2937;
}

.review-info span {
  font-size: 0.78rem;
  color: var(--color-text-light);
}

/* FAQ 常见问题手风琴组件 */
.faq-section {
  padding: 50px 0 80px;
}

.faq-container {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 40px;
  align-items: flex-start;
}

.faq-doggy-card {
  padding: 36px 28px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.sleeping-dog-svg {
  width: 220px;
  height: auto;
  margin: 10px 0;
  animation: sleepingBreath 3.5s ease-in-out infinite alternate;
}

@keyframes sleepingBreath {
  0% { transform: scale(1); }
  100% { transform: scale(1.03) translateY(-4px); }
}

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(190, 205, 230, 0.15);
}

.faq-item:hover {
  background: rgba(255, 255, 255, 0.9);
}

.faq-question {
  padding: 18px 24px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #1F2937;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-toggle-icon {
  font-size: 1.2rem;
  color: var(--color-primary);
  transition: transform 0.3s ease;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 24px 20px;
}

/* 知识库与文章推荐区 */
.articles-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-preview-card {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.article-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.76rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--border-radius-pill);
  background: rgba(78, 134, 255, 0.12);
  color: #2D68FF;
}

.article-preview-card h4 {
  font-size: 1.15rem;
  font-weight: 800;
  color: #1F2937;
  line-height: 1.45;
  transition: color 0.2s ease;
}

.article-preview-card:hover h4 {
  color: var(--color-primary);
}

.article-preview-card p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  flex-grow: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--color-text-light);
  padding-top: 12px;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

/* 页脚 Footer */
.footer {
  margin-top: 80px;
  padding: 60px 0 100px;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: var(--glass-blur);
  border-top: 1px solid rgba(255, 255, 255, 0.9);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  margin: 14px 0 20px;
  max-width: 340px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 800;
  color: #1F2937;
  margin-bottom: 18px;
}

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

.footer-links a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  transition: all 0.2s ease;
}

.footer-links a:hover {
  color: var(--color-primary);
  transform: translateX(4px);
}

.footer-bottom {
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--color-text-light);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-keywords {
  width: 100%;
  margin-top: 20px;
  padding: 16px 20px;
  background: rgba(245, 248, 255, 0.7);
  border-radius: var(--border-radius-sm);
  font-size: 0.8rem;
  color: var(--color-text-light);
  line-height: 1.8;
}

.footer-keywords a {
  color: var(--color-text-muted);
  text-decoration: none;
  margin: 0 6px;
}

.footer-keywords a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* 移动端固定底部购买转化悬浮条 (Sticky Mobile CTA Bar) */
.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 -8px 24px rgba(180, 195, 220, 0.35);
  padding: 10px 16px;
}

.mobile-bottom-bar-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 480px;
  margin: 0 auto;
}

.mobile-bar-info {
  display: flex;
  flex-direction: column;
}

.mobile-bar-title {
  font-size: 0.88rem;
  font-weight: 800;
  color: #1F2937;
}

.mobile-bar-price {
  font-size: 0.8rem;
  color: var(--color-primary);
  font-weight: 700;
}

/* ==========================================================================
   全方位响应式断点体系 (桌面 ➔ 平板 ➔ 手机 ➔ 超小屏)
   ========================================================================== */

/* 1. 平板与紧凑屏 (<= 1024px) */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 32px;
  }
  .hero-badge-wrap {
    margin: 0 auto 20px;
  }
  .hero-desc {
    margin: 0 auto 32px;
  }
  .hero-cta-group {
    justify-content: center;
  }
  .hero-features-bar {
    justify-content: center;
  }
  .hero-illustration-wrapper {
    max-width: 400px;
    margin: 0 auto;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
    padding-top: 24px;
  }
  .price-card-popular {
    transform: none;
  }
  .price-card-popular:hover {
    transform: translateY(-4px);
  }
  .apps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .faq-container {
    grid-template-columns: 1fr;
  }
  .articles-preview-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 2. 手机端标准屏幕 (<= 768px) */
@media (max-width: 768px) {
  .header-wrapper {
    padding: 0 10px;
    top: 10px;
    margin-bottom: 20px;
  }
  .navbar {
    padding: 8px 14px;
    border-radius: var(--border-radius-pill);
  }
  .nav-brand-logo {
    width: 34px;
    height: 34px;
  }
  .nav-brand-title {
    font-size: 0.98rem;
  }
  .nav-brand-sub {
    display: none;
  }
  .nav-menu {
    display: none;
    position: absolute;
    top: 56px;
    left: 10px;
    right: 10px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: 0 18px 40px rgba(160, 180, 210, 0.35);
    flex-direction: column;
    padding: 18px;
    gap: 8px;
    z-index: 10000;
  }
  .nav-menu.show {
    display: flex !important;
  }
  .nav-link {
    width: 100%;
    text-align: center;
    padding: 10px 14px;
    font-size: 0.95rem;
  }
  .nav-btn-login {
    display: none;
  }
  .mobile-menu-toggle {
    display: flex !important;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 50%;
    font-size: 1.2rem;
    color: var(--color-primary);
  }
  .nav-actions {
    gap: 8px;
  }
  .nav-actions .btn {
    padding: 6px 14px;
    font-size: 0.8rem;
  }

  /* Hero 区域移动端优化 */
  .hero-section {
    padding: 15px 0 35px;
  }
  .hero-title {
    font-size: 1.95rem !important;
    line-height: 1.25 !important;
    letter-spacing: -0.5px !important;
    word-break: break-word !important;
  }
  .hero-subtitle {
    font-size: 1.12rem !important;
    margin-bottom: 14px !important;
  }
  .hero-desc {
    font-size: 0.92rem !important;
    line-height: 1.65 !important;
    margin-bottom: 24px !important;
  }
  .hero-cta-group {
    flex-direction: column;
    gap: 12px;
    width: 100%;
  }
  .hero-cta-group .btn {
    width: 100%;
    padding: 14px 20px;
  }
  .hero-features-bar {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px 6px !important;
    padding-top: 18px !important;
    text-align: left;
  }
  .hero-feature-item {
    font-size: 0.82rem !important;
    justify-content: flex-start !important;
  }

  /* 萌宠小狗插图移动端适配 */
  .hero-visual-card {
    padding: 10px 0 !important;
    width: 100% !important;
    overflow: hidden !important;
  }
  .hero-illustration-wrapper {
    max-width: 320px !important;
    margin: 0 auto !important;
  }
  .float-badge-top {
    top: 2% !important;
    right: 0 !important;
    font-size: 0.72rem !important;
    padding: 4px 10px !important;
  }
  .float-badge-bottom {
    bottom: 2% !important;
    left: 0 !important;
    font-size: 0.72rem !important;
    padding: 4px 10px !important;
  }

  /* 卡片与网格流式单列 */
  .features-grid {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
  }
  .feature-card {
    padding: 24px 20px !important;
  }
  .section-title {
    font-size: 1.65rem !important;
    line-height: 1.3 !important;
  }
  .section-subtitle {
    font-size: 0.9rem !important;
  }

  /* 客户端矩阵 */
  .client-card-inner {
    padding: 24px 16px !important;
  }
  .client-platforms-row {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px !important;
    margin-bottom: 24px !important;
  }
  .client-mockup-banner {
    flex-direction: column !important;
    align-items: stretch !important;
    padding: 16px 12px !important;
    gap: 10px !important;
  }
  .device-showcase-item {
    width: 100% !important;
  }
  .device-badge-screen {
    width: 100% !important;
    font-size: 0.78rem !important;
    padding: 8px 12px !important;
    justify-content: center !important;
  }

  /* 场景应用矩阵 */
  .apps-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px !important;
  }
  .app-card {
    padding: 16px 10px !important;
  }

  /* 套餐卡片单列居中 */
  .pricing-section {
    padding: 40px 0 60px !important;
  }
  .pricing-highlight-banner {
    font-size: 0.8rem !important;
    padding: 8px 14px !important;
    line-height: 1.5 !important;
    border-radius: 14px !important;
    text-align: left !important;
  }
  .pricing-grid {
    grid-template-columns: 1fr !important;
    max-width: 100% !important;
    padding: 24px 0 0 !important;
    gap: 32px !important;
  }
  .price-card {
    padding: 34px 20px !important;
  }

  /* FAQ */
  .faq-section {
    padding: 40px 0 60px !important;
  }
  .faq-container {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  .faq-doggy-card {
    padding: 22px 16px !important;
  }
  .sleeping-dog-svg {
    width: 160px !important;
  }
  .faq-question {
    padding: 14px 16px !important;
    font-size: 0.95rem !important;
  }

  /* 页脚 */
  .footer {
    margin-top: 40px !important;
    padding: 40px 0 90px !important;
  }
  .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }
  .footer-bottom {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 10px !important;
  }

  /* 移动端常驻底部转化条 */
  .mobile-bottom-bar {
    display: block !important;
  }
  body {
    padding-bottom: 76px !important;
  }
}

/* 3. 超窄小屏手机专属优化 (<= 380px) */
@media (max-width: 380px) {
  .hero-title {
    font-size: 1.7rem !important;
  }
  .apps-grid {
    grid-template-columns: 1fr !important;
  }
  .client-platforms-row {
    grid-template-columns: 1fr !important;
  }
  .hero-features-bar {
    grid-template-columns: 1fr !important;
  }
}