/* ==========================================================================
   花云 (HuaYun) - 官方极简极速样式表 (Pure Native CSS)
   品牌色系：提取自官方 Logo（暖橙/炽热朱红/玫粉/深紫罗兰渐变）
   ========================================================================== */

:root {
  /* 品牌核心色彩 - 取自花云 Logo */
  --brand-orange: #FF7A00;
  --brand-coral: #FF3D00;
  --brand-pink: #E91E63;
  --brand-magenta: #D81B60;
  --brand-purple: #8E24AA;
  --brand-gradient: linear-gradient(135deg, #FF9100 0%, #FF3D00 35%, #E91E63 70%, #9C27B0 100%);
  --brand-gradient-hover: linear-gradient(135deg, #FFA000 0%, #FF5722 35%, #F06292 70%, #AB47BC 100%);
  --brand-gradient-subtle: linear-gradient(135deg, rgba(255, 122, 0, 0.08) 0%, rgba(233, 30, 99, 0.08) 100%);
  --brand-gradient-border: linear-gradient(135deg, rgba(255, 122, 0, 0.4) 0%, rgba(233, 30, 99, 0.4) 100%);

  /* 中性背景与文字 */
  --bg-primary: #FAFAFD;
  --bg-card: #FFFFFF;
  --bg-card-subtle: #F4F5F9;
  --bg-dark: #12131A;
  
  --text-main: #1A1C24;
  --text-secondary: #575D6E;
  --text-muted: #8E95A5;
  --text-light: #FFFFFF;

  /* 阴影与边框 */
  --border-light: rgba(220, 224, 235, 0.8);
  --border-brand: rgba(233, 30, 99, 0.2);
  --shadow-sm: 0 2px 8px rgba(26, 28, 36, 0.04);
  --shadow-md: 0 8px 24px rgba(233, 30, 99, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 16px 40px rgba(233, 30, 99, 0.14), 0 4px 12px rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 8px 25px rgba(255, 61, 0, 0.28);

  /* 尺寸与间距 */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 9999px;
  --container-max: 1200px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--bg-primary);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
  background: radial-gradient(circle at 10% 15%, rgba(255, 145, 0, 0.04) 0%, transparent 45%),
              radial-gradient(circle at 90% 40%, rgba(233, 30, 99, 0.04) 0%, transparent 50%),
              radial-gradient(circle at 50% 85%, rgba(156, 39, 176, 0.03) 0%, transparent 55%),
              var(--bg-primary);
}

a {
  color: inherit;
  text-decoration: none;
  transition: all var(--transition-fast);
}

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

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

/* ==========================================================================
   导航页眉 Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition-fast);
}

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

/* 品牌 Logo 区域 */
.brand-logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.brand-logo-link:hover {
  transform: translateY(-1px) scale(1.02);
}

.brand-logo-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: 8px;
  filter: drop-shadow(0 2px 6px rgba(233, 30, 99, 0.25));
  animation: pulse-subtle 4s infinite ease-in-out;
}

@keyframes pulse-subtle {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.brand-logo-text {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background: var(--brand-gradient-subtle);
  color: var(--brand-coral);
  border: 1px solid var(--border-brand);
}

/* 桌面端导航 */
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

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

.nav-link:hover {
  color: var(--brand-coral);
}

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

.header-cta-btn {
  padding: 9px 20px;
  font-size: 14px;
  font-weight: 700;
  color: #FFFFFF !important;
  background: var(--brand-gradient);
  border-radius: var(--radius-full);
  box-shadow: 0 4px 14px rgba(255, 61, 0, 0.3);
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.header-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  filter: brightness(1.05);
}

/* ==========================================================================
   页面区块通用 Section
   ========================================================================== */
.page-section {
  padding-top: 88px;
  padding-bottom: 88px;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px auto;
}

.section-tag {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  background: var(--brand-gradient-subtle);
  color: var(--brand-coral);
  border: 1px solid var(--border-brand);
  margin-bottom: 14px;
}

.section-title {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-main);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-desc {
  font-size: 16.5px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==========================================================================
   Hero 主视觉区 (Headline + 副标题 + 动态图卡左右分布)
   ========================================================================== */
.hero-section {
  padding-top: 64px;
  padding-bottom: 80px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  align-items: center;
  gap: 56px;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: #FFFFFF;
  border: 1px solid rgba(255, 61, 0, 0.25);
  box-shadow: var(--shadow-sm);
  font-size: 13px;
  font-weight: 700;
  color: var(--brand-coral);
  margin-bottom: 22px;
}

.hero-pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #00E676;
  box-shadow: 0 0 10px #00E676;
  animation: pulse-dot 2s infinite;
}

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

.hero-headline {
  font-size: 46px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -1px;
  color: var(--text-main);
  margin-bottom: 20px;
}

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

.hero-subheadline {
  font-size: 17.5px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 34px;
}

.hero-btn-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 38px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 32px;
  font-size: 16px;
  font-weight: 800;
  color: #FFFFFF !important;
  background: var(--brand-gradient);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-glow);
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  filter: brightness(1.08);
  box-shadow: 0 12px 32px rgba(255, 61, 0, 0.42);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 30px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--text-main) !important;
  background: #FFFFFF;
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-secondary:hover {
  border-color: var(--brand-pink);
  color: var(--brand-pink) !important;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.hero-trust-row {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--border-light);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

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

/* Hero 右侧动态图卡视觉 */
.hero-visual-card {
  position: relative;
  background: #FFFFFF;
  border: 1px solid rgba(233, 30, 99, 0.18);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
}

.hero-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-light);
}

.card-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.card-logo-mini {
  width: 32px;
  height: 32px;
}

.card-title-text {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-main);
}

.card-title-sub {
  font-size: 11.5px;
  color: var(--text-muted);
}

.status-badge-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 700;
  color: #00C853;
  background: rgba(0, 200, 83, 0.08);
  border: 1px solid rgba(0, 200, 83, 0.2);
  border-radius: var(--radius-full);
}

.radar-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 22px;
}

.radar-stat-box {
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 14px;
  text-align: center;
}

.stat-box-val {
  font-size: 20px;
  font-weight: 900;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

.stat-box-lbl {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 4px;
}

.node-list-preview {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.node-item-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.node-item-bar:hover {
  border-color: var(--brand-pink);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.node-name {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
}

.node-flag {
  font-size: 15px;
}

.node-speed {
  font-size: 12px;
  font-weight: 800;
  color: #00C853;
  background: rgba(0, 200, 83, 0.08);
  padding: 2px 8px;
  border-radius: 4px;
}

.node-ping {
  font-size: 12px;
  color: var(--text-muted);
}

/* 浮动徽章元素 */
.floating-accent-tag {
  position: absolute;
  background: #FFFFFF;
  border: 1px solid rgba(233, 30, 99, 0.25);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-full);
  padding: 8px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-main);
  animation: float-anim 5s ease-in-out infinite;
}

.tag-top-right {
  top: -16px;
  right: -12px;
}

.tag-bottom-left {
  bottom: -16px;
  left: -12px;
  animation-delay: -2.5s;
}

@keyframes float-anim {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

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

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--brand-gradient);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: rgba(233, 30, 99, 0.3);
  box-shadow: var(--shadow-lg);
}

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

.feature-icon-wrapper {
  width: 62px;
  height: 62px;
  border-radius: var(--radius-md);
  background: var(--brand-gradient-subtle);
  border: 1px solid var(--border-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--brand-coral);
  transition: transform var(--transition-fast);
}

.feature-card:hover .feature-icon-wrapper {
  transform: scale(1.1) rotate(4deg);
}

.feature-card-title {
  font-size: 21px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 14px;
}

.feature-card-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.feature-list {
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.feature-list-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--text-main);
  font-weight: 600;
}

.feature-list-item svg {
  color: #00C853;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ==========================================================================
   流媒体与 AI 支持图卡
   ========================================================================== */
.support-section {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(255, 240, 245, 0.4) 50%, rgba(255, 255, 255, 0) 100%);
}

.apps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.app-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 22px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.app-card:hover {
  transform: translateY(-4px);
  border-color: rgba(233, 30, 99, 0.35);
  box-shadow: var(--shadow-md);
}

.app-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  flex-shrink: 0;
  color: #FFFFFF;
}

.icon-chatgpt { background: #10A37F; }
.icon-claude  { background: #D97706; }
.icon-midjourney { background: #2A2B2E; }
.icon-gemini  { background: linear-gradient(135deg, #1A73E8, #9334E6); }
.icon-netflix { background: #E50914; }
.icon-youtube { background: #FF0000; }
.icon-disney  { background: #113CCF; }
.icon-hbo     { background: #5822B4; }
.icon-tiktok  { background: #010101; }
.icon-spotify { background: #1DB954; }
.icon-steam   { background: #171A21; }
.icon-apple   { background: #000000; }

.app-info-title {
  font-size: 15.5px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
}

.app-info-desc {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 3px;
}

.app-status-badge {
  margin-left: auto;
  font-size: 11px;
  font-weight: 700;
  color: #00C853;
  background: rgba(0, 200, 83, 0.09);
  padding: 3px 8px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

/* ==========================================================================
   套餐价格对比表
   ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 34px 26px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(233, 30, 99, 0.3);
}

.pricing-card.featured {
  border: 2px solid transparent;
  background-image: linear-gradient(#FFFFFF, #FFFFFF), var(--brand-gradient);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  box-shadow: var(--shadow-lg);
  transform: scale(1.03);
}

.pricing-card.featured:hover {
  transform: scale(1.04) translateY(-8px);
}

.featured-ribbon {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--brand-gradient);
  color: #FFFFFF;
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 0.5px;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px rgba(255, 61, 0, 0.3);
  white-space: nowrap;
}

.plan-header {
  text-align: center;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-light);
}

.plan-name {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 8px;
}

.plan-intro {
  font-size: 13px;
  color: var(--text-muted);
}

.plan-price-wrap {
  margin: 18px 0 6px 0;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}

.price-currency {
  font-size: 20px;
  font-weight: 800;
  color: var(--brand-coral);
}

.price-number {
  font-size: 42px;
  font-weight: 900;
  letter-spacing: -1px;
  line-height: 1;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.price-period {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 600;
}

.plan-specs {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 30px;
  flex-grow: 1;
}

.spec-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  color: var(--text-secondary);
}

.spec-item svg {
  color: var(--brand-coral);
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}

.spec-item strong {
  color: var(--text-main);
}

.pricing-btn {
  width: 100%;
  padding: 13px 20px;
  border-radius: var(--radius-full);
  font-size: 14.5px;
  font-weight: 800;
  text-align: center;
  display: block;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.pricing-btn-primary {
  background: var(--brand-gradient);
  color: #FFFFFF !important;
  box-shadow: 0 4px 14px rgba(255, 61, 0, 0.3);
}

.pricing-btn-primary:hover {
  filter: brightness(1.08);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.pricing-btn-outline {
  background: #FFFFFF;
  color: var(--text-main) !important;
  border: 1.5px solid var(--border-light);
}

.pricing-btn-outline:hover {
  border-color: var(--brand-pink);
  color: var(--brand-pink) !important;
  transform: translateY(-2px);
}

/* ==========================================================================
   SEO 文章图卡板块 (位于价格板块下方)
   ========================================================================== */
.seo-articles-section {
  background: #FFFFFF;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

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

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.article-card:hover {
  transform: translateY(-6px);
  border-color: rgba(233, 30, 99, 0.3);
  box-shadow: var(--shadow-md);
}

.article-thumb-banner {
  height: 130px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  color: #FFFFFF;
  overflow: hidden;
}

.thumb-bg-1 { background: linear-gradient(135deg, #FF7A00, #FF3D00); }
.thumb-bg-2 { background: linear-gradient(135deg, #FF3D00, #E91E63); }
.thumb-bg-3 { background: linear-gradient(135deg, #E91E63, #9C27B0); }
.thumb-bg-4 { background: linear-gradient(135deg, #7B1FA2, #3F51B5); }
.thumb-bg-5 { background: linear-gradient(135deg, #0288D1, #009688); }
.thumb-bg-6 { background: linear-gradient(135deg, #F57C00, #D32F2F); }

.thumb-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(8px);
  color: #FFFFFF;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: var(--radius-full);
}

.thumb-read-time {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(8px);
  color: #FFFFFF;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}

.thumb-icon-visual {
  font-size: 38px;
  opacity: 0.9;
}

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

.article-meta-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.article-card-title {
  font-size: 17.5px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--text-main);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card-title a:hover {
  color: var(--brand-coral);
}

.article-card-excerpt {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex-grow: 1;
}

.article-footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border-light);
}

.read-more-link {
  font-size: 13px;
  font-weight: 700;
  color: var(--brand-pink);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.read-more-link:hover {
  color: var(--brand-coral);
  transform: translateX(3px);
}

.article-cta-pill {
  font-size: 12px;
  font-weight: 700;
  color: #FFFFFF !important;
  background: var(--brand-gradient);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  text-decoration: none;
}

.article-cta-pill:hover {
  filter: brightness(1.1);
}

/* ==========================================================================
   常见问题 FAQ
   ========================================================================== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: rgba(233, 30, 99, 0.3);
  box-shadow: var(--shadow-sm);
}

.faq-summary {
  padding: 20px 24px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  user-select: none;
}

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

.faq-icon-arrow {
  width: 20px;
  height: 20px;
  color: var(--brand-coral);
  transition: transform var(--transition-fast);
}

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

.faq-content {
  padding: 0 24px 22px 24px;
  font-size: 14.5px;
  color: var(--text-secondary);
  line-height: 1.75;
  border-top: 1px solid rgba(220, 224, 235, 0.4);
  padding-top: 16px;
}

/* ==========================================================================
   用户评价 Testimonials
   ========================================================================== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.review-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.review-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(233, 30, 99, 0.25);
}

.review-stars {
  display: flex;
  gap: 4px;
  color: #FFB300;
  margin-bottom: 16px;
}

.review-text {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 22px;
}

.reviewer-profile {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}

.reviewer-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--brand-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-weight: 800;
  font-size: 16px;
}

.reviewer-name {
  font-size: 15px;
  font-weight: 800;
  color: var(--text-main);
}

.reviewer-title {
  font-size: 12.5px;
  color: var(--text-muted);
}

/* ==========================================================================
   右侧章节跳转悬浮箭头 (Interactive Floating Section Navigator)
   ========================================================================== */
.floating-section-nav {
  position: fixed;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(233, 30, 99, 0.2);
  border-radius: var(--radius-full);
  padding: 10px 6px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

.nav-arrow-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #FFFFFF;
  color: var(--text-main);
  border: 1px solid var(--border-light);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.nav-arrow-btn svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.nav-arrow-btn:hover {
  background: var(--brand-gradient);
  color: #FFFFFF;
  border-color: transparent;
  transform: scale(1.15);
  box-shadow: 0 4px 12px rgba(255, 61, 0, 0.35);
}

.nav-arrow-btn:active {
  transform: scale(0.95);
}

.section-indicator {
  font-size: 11px;
  font-weight: 800;
  color: var(--brand-coral);
  padding: 4px 2px;
  text-align: center;
}

/* ==========================================================================
   页脚 Footer (语义化 HTML5 标签，严格保留四个标题与 PBN 外链)
   ========================================================================== */
.site-footer {
  background: #0E0F14;
  color: #A0A5B5;
  padding: 64px 0 36px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-brand-title {
  font-size: 20px;
  font-weight: 800;
  color: #FFFFFF;
}

.footer-brand-desc {
  font-size: 13.5px;
  color: #798096;
  max-width: 440px;
  margin-top: 6px;
}

/* 页脚严格只保留这四个标题，内容打开新页面展示 */
.footer-four-links {
  display: flex;
  align-items: center;
  gap: 36px;
  flex-wrap: wrap;
}

.footer-nav-link {
  font-size: 15px;
  font-weight: 700;
  color: #E2E4EE;
  transition: all var(--transition-fast);
  position: relative;
  padding: 4px 0;
}

.footer-nav-link:hover {
  color: var(--brand-orange);
  transform: translateY(-2px);
}

/* 页脚居中 PBN 外链与版权声明 */
.footer-pbn-center {
  padding-top: 36px;
  text-align: center;
}

.footer-pbn-links-row {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
  padding: 10px 24px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  margin-bottom: 18px;
}

.pbn-label {
  font-size: 12.5px;
  font-weight: 700;
  color: #798096;
}

.footer-pbn-item {
  font-size: 13.5px;
  font-weight: 700;
  color: #FFA726;
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: all var(--transition-fast);
}

.footer-pbn-item:hover {
  color: #FF5722;
  text-decoration-color: #FF5722;
}

.footer-copyright {
  font-size: 13px;
  color: #636B82;
  margin-top: 8px;
}

/* ==========================================================================
   响应式媒体查询 (@media 移动端优先与单栏适配)
   ========================================================================== */
@media (max-width: 1080px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .apps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .page-section {
    padding-top: 60px;
    padding-bottom: 60px;
  }
  .hero-headline {
    font-size: 32px;
  }
  .section-title {
    font-size: 26px;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .apps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: translateY(-4px);
  }
  .articles-grid {
    grid-template-columns: 1fr;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .desktop-nav {
    display: none;
  }
  .hero-btn-group {
    flex-direction: column;
    width: 100%;
  }
  .btn-primary, .btn-secondary {
    width: 100%;
    text-align: center;
  }
  .hero-trust-row {
    flex-wrap: wrap;
    gap: 14px;
  }
  .footer-top {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-four-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .floating-section-nav {
    right: 10px;
    padding: 6px 4px;
  }
  .nav-arrow-btn {
    width: 36px;
    height: 36px;
  }
}

@media (max-width: 480px) {
  .apps-grid {
    grid-template-columns: 1fr;
  }
  .radar-stats-grid {
    grid-template-columns: 1fr;
  }
}