/* ==========================================================================
   红杏云机场 (HongXingYun) - 官方视觉设计系统
   品牌定位：红杏云机场 / 红杏云 VPN / 红杏云加速器 / 红杏云网络加速
   主色调：
     --bg-almond: #FBF7EF (杏仁米白)
     --blossom-pink: #F2B7B5 (柔粉)
     --blossom-deep: #E58C8A (深粉)
     --leaf-green: #93BE89 (嫩叶绿)
     --leaf-dark: #638C5B (墨绿)
     --sky-blue: #6CA6CD (晴空蓝)
     --vermilion: #D34E36 (朱砂红)
     --mint-glow: #4ECCA3 (薄荷绿状态光)
     --paper-white: #FFFDF9 (和纸白)
     --ink-text: #2D3748 (墨灰字)
     --ink-soft: #5A6A85 (软墨青)
     --paper-border: #EFE6D5 (细边框)
   ========================================================================== */

:root {
  --bg-almond: #FBF7EF;
  --bg-almond-soft: #F6F0E2;
  --blossom-pink: #F2B7B5;
  --blossom-deep: #E58C8A;
  --blossom-light: #FDF2F1;
  --leaf-green: #93BE89;
  --leaf-dark: #5B8452;
  --sky-blue: #6CA6CD;
  --sky-light: #EBF4FA;
  --vermilion: #D34E36;
  --vermilion-light: #FAECE9;
  --mint-glow: #4ECCA3;
  --paper-white: #FFFDF9;
  --paper-card: #FFFFFF;
  --paper-border: #EADBCE;
  --ink-text: #2B2D42;
  --ink-soft: #5C677D;
  --ink-muted: #8D99AE;
  --shadow-warm: 0 10px 30px rgba(184, 150, 132, 0.12);
  --shadow-hover: 0 16px 40px rgba(184, 150, 132, 0.18);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 9999px;
  --font-serif: "Noto Serif SC", "Songti SC", "SimSun", "STSong", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-almond);
  color: var(--ink-text);
  line-height: 1.75;
  position: relative;
  overflow-x: hidden;
  background-image: 
    radial-gradient(#eedbc5 0.75px, transparent 0.75px),
    radial-gradient(#ebd3bc 0.75px, var(--bg-almond) 0.75px);
  background-size: 30px 30px;
  background-position: 0 0, 15px 15px;
}

/* 花瓣背景画布 */
#petals-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 10;
}

/* 容器与布局 */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: 900px;
}

/* 导航栏设计 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251, 247, 239, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--paper-border);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(184, 150, 132, 0.08);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink-text);
}

.logo-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #FFEBE9 0%, #F2B7B5 100%);
  border: 2px solid #FFF;
  box-shadow: 0 4px 12px rgba(242, 183, 181, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.logo-icon img {
  width: 26px;
  height: 26px;
}

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

.logo-name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.05em;
  color: var(--ink-text);
  line-height: 1.2;
}

.logo-tagline {
  font-size: 0.75rem;
  color: var(--vermilion);
  letter-spacing: 0.08em;
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 28px;
}

.nav-link {
  text-decoration: none;
  color: var(--ink-soft);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
  padding: 6px 0;
}

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

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

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

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

/* 按钮风格 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  line-height: 1.2;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--vermilion) 0%, #BE3820 100%);
  color: #FFFFFF !important;
  box-shadow: 0 6px 18px rgba(211, 78, 54, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(211, 78, 54, 0.38);
  background: linear-gradient(135deg, #DD5840 0%, #BE3820 100%);
}

.btn-secondary {
  background: var(--paper-white);
  color: var(--ink-text) !important;
  border: 1px solid var(--paper-border);
  box-shadow: 0 4px 12px rgba(184, 150, 132, 0.08);
}

.btn-secondary:hover {
  border-color: var(--blossom-deep);
  color: var(--vermilion) !important;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 7px 16px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 14px 34px;
  font-size: 1.05rem;
}

/* 移动端菜单切换与抽屉层 (全局默认强制隐藏，防止在桌面端露出来) */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--ink-text);
  margin: 5px 0;
  transition: var(--transition);
}

.mobile-menu-drawer {
  display: none !important;
}

/* 首屏 Hero 区域 */
.hero-section {
  position: relative;
  padding: 40px 0 60px 0;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.badge-spring {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #FFF;
  border: 1px solid var(--blossom-pink);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: var(--vermilion);
  margin-bottom: 20px;
  box-shadow: 0 2px 10px rgba(242, 183, 181, 0.2);
}

.badge-spring-icon {
  width: 14px;
  height: 14px;
  background-color: var(--blossom-deep);
  border-radius: 50%;
  display: inline-block;
  animation: pulse-petal 2s infinite;
}

@keyframes pulse-petal {
  0% { transform: scale(0.9); opacity: 0.7; }
  50% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.7; }
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 2.75rem;
  line-height: 1.25;
  color: var(--ink-text);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-title .highlight {
  color: var(--vermilion);
  position: relative;
  display: inline-block;
}

.hero-title .highlight::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  width: 100%;
  height: 8px;
  background: rgba(242, 183, 181, 0.45);
  z-index: -1;
  border-radius: 4px;
}

.hero-subtitle {
  font-size: 1.12rem;
  color: var(--ink-soft);
  margin-bottom: 32px;
  max-width: 540px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}

.hero-stats {
  display: flex;
  gap: 28px;
  padding-top: 24px;
  border-top: 1px dashed var(--paper-border);
}

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

.stat-num {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--vermilion);
  line-height: 1.1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--ink-muted);
  margin-top: 4px;
}

/* 核心视觉：测速互动舞台 (Stage) */
.messenger-stage {
  position: relative;
  background: linear-gradient(180deg, rgba(255,255,255,0.85) 0%, rgba(246, 240, 226, 0.8) 100%);
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-warm);
  backdrop-filter: blur(8px);
}

.stage-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(234, 219, 206, 0.6);
}

.stage-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink-text);
}

.status-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--leaf-dark);
  background: rgba(147, 190, 137, 0.15);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--mint-glow);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--mint-glow);
  animation: glow-pulse 1.8s infinite;
}

@keyframes glow-pulse {
  0% { transform: scale(0.9); box-shadow: 0 0 4px var(--mint-glow); }
  50% { transform: scale(1.3); box-shadow: 0 0 12px var(--mint-glow); }
  100% { transform: scale(0.9); box-shadow: 0 0 4px var(--mint-glow); }
}

/* 画板与枝路节点系统 */
.illustration-canvas-box {
  position: relative;
  width: 100%;
  height: 380px;
  background: radial-gradient(circle at 20% 30%, #FFFDF8 0%, #F5EDE0 100%);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(234, 219, 206, 0.8);
}

.messenger-illustration-svg {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  object-fit: cover;
}

/* 节点花苞样式 */
.node-blossom-bubble {
  position: absolute;
  cursor: pointer;
  transform: translate(-50%, -50%);
  transition: var(--transition);
  z-index: 15;
}

.node-card {
  background: #FFF;
  border: 1.5px solid var(--paper-border);
  padding: 8px 14px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.06);
  transition: var(--transition);
}

.node-card:hover, .node-card.active {
  border-color: var(--blossom-deep);
  transform: scale(1.08) translateY(-2px);
  box-shadow: 0 8px 20px rgba(242, 183, 181, 0.35);
}

.node-icon-bud {
  width: 22px;
  height: 22px;
  transition: var(--transition);
}

.node-city {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--ink-text);
}

.node-ping {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--leaf-dark);
  background: rgba(147, 190, 137, 0.15);
  padding: 2px 6px;
  border-radius: 4px;
}

.node-status-glow {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint-glow);
  box-shadow: 0 0 6px var(--mint-glow);
}

/* 节点坐标 */
.node-pos-hk { top: 28%; left: 82%; }
.node-pos-jp { top: 48%; left: 88%; }
.node-pos-sg { top: 70%; left: 75%; }
.node-pos-us { top: 32%; left: 52%; }
.node-pos-eu { top: 78%; left: 45%; }

/* 测速飞行动画 */
.packet-petal-flight {
  position: absolute;
  width: 14px;
  height: 14px;
  background: radial-gradient(circle, #FFEBE9 0%, #F2B7B5 70%, #E58C8A 100%);
  border-radius: 50% 0 50% 50%;
  filter: drop-shadow(0 0 6px rgba(242, 183, 181, 0.9));
  pointer-events: none;
  z-index: 20;
  opacity: 0;
}

.stage-control-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--paper-border);
}

.test-btn {
  background: var(--sky-blue);
  color: #FFF;
  border: none;
  padding: 8px 18px;
  font-size: 0.85rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}

.test-btn:hover {
  background: #5A95BC;
  transform: translateY(-1px);
}

.stage-tip {
  font-size: 0.8rem;
  color: var(--ink-muted);
}

/* 分割线 */
.section-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 50px 0 20px 0;
  gap: 16px;
}

.divider-line {
  flex: 1;
  max-width: 160px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blossom-pink), transparent);
}

.divider-flower {
  font-size: 1.1rem;
  color: var(--vermilion);
}

/* 板块标题 */
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px auto;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--vermilion);
  background: var(--vermilion-light);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  color: var(--ink-text);
  margin-bottom: 14px;
  line-height: 1.3;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--ink-soft);
}

/* 核心优势卡片 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.letter-card {
  background: var(--paper-white);
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  position: relative;
  transition: var(--transition);
  box-shadow: var(--shadow-warm);
  overflow: hidden;
}

.letter-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--blossom-pink), var(--leaf-green));
  opacity: 0;
  transition: var(--transition);
}

.letter-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: #E0CEBE;
}

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

.feature-stamp {
  width: 54px;
  height: 54px;
  border-radius: 12px;
  background: #FFF5F4;
  border: 1px dashed var(--blossom-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: var(--transition);
  color: var(--vermilion);
}

.letter-card:hover .feature-stamp {
  transform: scale(1.1) rotate(5deg);
  background: var(--vermilion);
  color: #FFF;
}

.feature-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--ink-text);
  margin-bottom: 12px;
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--ink-soft);
  line-height: 1.65;
}

/* 套餐价格板块 */
.pricing-section {
  padding: 80px 0;
  position: relative;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.pricing-letter {
  background: var(--paper-white);
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  position: relative;
  box-shadow: var(--shadow-warm);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.pricing-letter:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.pricing-letter.featured {
  border: 2px solid var(--vermilion);
  background-color: #FFFDF9;
}

.wax-seal {
  position: absolute;
  top: -14px;
  right: 18px;
  background: var(--vermilion);
  color: #FFF;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 10px rgba(211, 78, 54, 0.35);
  letter-spacing: 0.05em;
}

.plan-type {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--ink-text);
  margin-bottom: 6px;
}

.plan-suitable {
  font-size: 0.85rem;
  color: var(--ink-muted);
  margin-bottom: 20px;
}

.plan-price-box {
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--paper-border);
}

.plan-currency {
  font-size: 1.2rem;
  color: var(--vermilion);
  font-weight: 700;
}

.plan-amount {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--vermilion);
  line-height: 1;
}

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

.plan-features {
  list-style: none;
  margin-bottom: 28px;
  flex-grow: 1;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-bottom: 12px;
}

.plan-features li svg {
  width: 16px;
  height: 16px;
  color: var(--leaf-dark);
  flex-shrink: 0;
}

.plan-features li strong {
  color: var(--ink-text);
}

/* 适合人群 */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.audience-card {
  background: var(--paper-white);
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow-warm);
}

.audience-card:hover {
  transform: translateY(-5px);
  border-color: var(--blossom-deep);
}

.audience-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px auto;
  border-radius: 50%;
  background: var(--sky-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sky-blue);
}

.audience-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.audience-desc {
  font-size: 0.88rem;
  color: var(--ink-soft);
  line-height: 1.6;
}

/* 教程区域 */
.tutorial-section {
  padding: 70px 0;
}

.tutorial-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 36px;
}

.tutorial-tab-btn {
  background: #FFF;
  border: 1px solid var(--paper-border);
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-weight: 600;
  color: var(--ink-soft);
  cursor: pointer;
  transition: var(--transition);
}

.tutorial-tab-btn.active {
  background: var(--vermilion);
  color: #FFF;
  border-color: var(--vermilion);
  box-shadow: 0 4px 12px rgba(211, 78, 54, 0.25);
}

.tutorial-content-panel {
  display: none;
}

.tutorial-content-panel.active {
  display: block;
}

.step-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  align-items: stretch;
}

.step-card {
  background: var(--paper-white);
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-md);
  padding: 26px 24px;
  box-shadow: var(--shadow-warm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: #DFCFBF;
}

.step-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(234, 219, 206, 0.85);
}

.step-title {
  font-family: var(--font-serif);
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--ink-text);
  margin-bottom: 0;
}

.step-badge {
  font-family: var(--font-serif);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--vermilion);
  background: var(--vermilion-light);
  border: 1px solid rgba(242, 183, 181, 0.6);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.step-body {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex-grow: 1;
}

.step-desc {
  font-size: 0.93rem;
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: 20px;
  min-height: 68px;
}

/* 代码与复制组件 */
.code-box {
  background: #2D3748;
  color: #E2E8F0;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-family: "Consolas", "Courier New", monospace;
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: auto;
}

.code-box span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex-grow: 1;
}

.copy-btn {
  flex-shrink: 0;
  white-space: nowrap;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  color: #FFF;
  padding: 6px 14px;
  border-radius: 4px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition);
}

.copy-btn:hover {
  background: var(--vermilion);
}

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

.review-card {
  background: var(--paper-white);
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-warm);
  position: relative;
}

.review-stars {
  color: #F5A623;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.review-text {
  font-size: 0.95rem;
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: 20px;
}

.reviewer-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.reviewer-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--blossom-light);
  border: 1px solid var(--blossom-pink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--vermilion);
}

.reviewer-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--ink-text);
}

.reviewer-identity {
  font-size: 0.8rem;
  color: var(--ink-muted);
}

/* FAQ 板块 */
.faq-section {
  padding: 70px 0;
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--paper-white);
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(184, 150, 132, 0.05);
  transition: var(--transition);
}

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

.faq-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--blossom-light);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  color: var(--vermilion);
  font-weight: 400;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  background: var(--vermilion);
  color: #FFF;
}

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

.faq-item.active .faq-answer {
  padding: 0 24px 22px 24px;
}

/* 文章目录 */
.articles-catalog-section {
  padding: 70px 0 90px 0;
}

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

.article-card {
  background: var(--paper-white);
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-warm);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  text-decoration: none;
  color: inherit;
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--blossom-deep);
}

.article-category {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--vermilion);
  background: var(--vermilion-light);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
  align-self: flex-start;
}

.article-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink-text);
  line-height: 1.45;
  margin-bottom: 10px;
}

.article-excerpt {
  font-size: 0.88rem;
  color: var(--ink-soft);
  line-height: 1.6;
  margin-bottom: 16px;
  flex-grow: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--ink-muted);
  border-top: 1px dashed var(--paper-border);
  padding-top: 12px;
}

/* 文章内页专用排版 */
.article-header {
  padding: 50px 0 30px 0;
  text-align: center;
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--ink-muted);
  margin-bottom: 20px;
}

.breadcrumb-nav a {
  color: var(--ink-soft);
  text-decoration: none;
}

.breadcrumb-nav a:hover {
  color: var(--vermilion);
}

.article-main-title {
  font-family: var(--font-serif);
  font-size: 2.4rem;
  line-height: 1.35;
  color: var(--ink-text);
  margin-bottom: 16px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.article-info-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  font-size: 0.88rem;
  color: var(--ink-muted);
}

.article-body-wrapper {
  background: var(--paper-white);
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-warm);
  margin-bottom: 50px;
  font-size: 1.05rem;
  line-height: 1.85;
  color: #333C4E;
}

.article-body-wrapper h2 {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  color: var(--ink-text);
  margin: 40px 0 16px 0;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--paper-border);
  position: relative;
}

.article-body-wrapper h2::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 60px;
  height: 2px;
  background-color: var(--vermilion);
}

.article-body-wrapper h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--ink-text);
  margin: 28px 0 12px 0;
}

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

.article-body-wrapper ul, .article-body-wrapper ol {
  margin: 0 0 24px 24px;
}

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

.article-callout {
  background: #FFF9F3;
  border-left: 4px solid var(--blossom-deep);
  padding: 18px 22px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 28px 0;
}

.article-callout.tip {
  background: #F3F9F1;
  border-left-color: var(--leaf-green);
}

.comparison-table-wrapper {
  overflow-x: auto;
  margin: 28px 0;
}

.table-custom {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.table-custom th, .table-custom td {
  padding: 14px 18px;
  border: 1px solid var(--paper-border);
}

.table-custom th {
  background: #F6EFE3;
  font-weight: 700;
  color: var(--ink-text);
}

.table-custom tr:nth-child(even) {
  background: #FCF9F3;
}

/* 页脚 Footer */
.site-footer {
  background: #F4EDE0;
  border-top: 1px solid var(--paper-border);
  padding: 70px 0 30px 0;
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand-desc {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-top: 16px;
  line-height: 1.7;
}

.footer-col-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink-text);
  margin-bottom: 18px;
  position: relative;
  display: inline-block;
}

.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 24px;
  height: 2px;
  background-color: var(--vermilion);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--vermilion);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(234, 219, 206, 0.8);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.footer-copy-text {
  line-height: 1.6;
}

/* 响应式断点适配 */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .audience-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .step-cards-grid {
    grid-template-columns: 1fr;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions .btn-secondary {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .mobile-menu-drawer {
    display: none !important;
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--paper-white);
    padding: 24px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.12);
    border-bottom: 1px solid var(--paper-border);
    z-index: 99;
  }
  .mobile-menu-drawer.open {
    display: block !important;
  }
  .mobile-menu-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .mobile-menu-links a {
    text-decoration: none;
    color: var(--ink-text);
    font-weight: 600;
    font-size: 1rem;
  }
  .hero-title {
    font-size: 2.1rem;
  }
  .features-grid, .pricing-grid, .audience-grid, .articles-grid {
    grid-template-columns: 1fr;
  }
  .article-body-wrapper {
    padding: 24px 18px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}