/* ===================================================================
   良心云机场 (lxyvpn.homes) - 官方正楷体·奢雅大理石风 (Marble Luxury)
   =================================================================== */

:root {
  --font-kaiti: "KaiTi", "STKaiti", "楷体", "Baskerville", "Georgia", "Songti SC", serif;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  
  /* 奢雅色盘：米白大理石底色、纯净白卡片、鎏金描边与点缀 */
  --bg-marble: #faf8f5;
  --bg-card: #ffffff;
  --bg-alt: #f4efe6;
  --bg-gold-light: #fbf7ee;
  
  --gold-primary: #b89047;
  --gold-hover: #9c7832;
  --gold-accent: #c5a059;
  --gold-subtle: rgba(197, 160, 89, 0.22);
  --gold-glow: rgba(197, 160, 89, 0.15);
  
  --text-primary: #231f20;
  --text-secondary: #5c5650;
  --text-muted: #8c857b;
  --text-gold: #9c7832;
  
  --border-gold: rgba(197, 160, 89, 0.32);
  --border-delicate: rgba(0, 0, 0, 0.08);
  --border-highlight: #c5a059;
  
  --shadow-subtle: 0 4px 20px rgba(184, 144, 71, 0.08);
  --shadow-card: 0 10px 30px rgba(60, 50, 40, 0.06);
  --shadow-hover: 0 16px 40px rgba(197, 160, 89, 0.18);
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-full: 9999px;
  
  --transition: all 0.35s cubic-bezier(0.25, 1, 0.5, 1);
}

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

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

body {
  font-family: var(--font-kaiti);
  background-color: var(--bg-marble);
  color: var(--text-primary);
  line-height: 1.85;
  letter-spacing: 0.03em;
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(197, 160, 89, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 85% 60%, rgba(184, 144, 71, 0.06) 0%, transparent 45%),
    linear-gradient(180deg, #faf8f5 0%, #f7f3ec 50%, #faf8f5 100%);
  min-height: 100vh;
}

/* 动态背景画布 */
#dynamic-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.75;
}

.site-wrapper {
  position: relative;
  z-index: 1;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 顶部公告条 */
.top-announcement {
  background: linear-gradient(90deg, #1e1b18 0%, #2f2a24 50%, #1e1b18 100%);
  color: #f6ede0;
  font-size: 0.88rem;
  padding: 8px 16px;
  text-align: center;
  border-bottom: 1px solid rgba(197, 160, 89, 0.3);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
}
.top-announcement .badge {
  background: var(--gold-primary);
  color: #fff;
  padding: 2px 8px;
  font-size: 0.75rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}
.top-announcement a {
  color: #f7d594;
  text-decoration: underline;
  margin-left: 6px;
}

/* 导航栏 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 248, 245, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-gold);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
  background: rgba(255, 255, 255, 0.98);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-logo .logo-symbol {
  width: 40px;
  height: 40px;
  border: 1.5px solid var(--gold-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--gold-primary);
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #fff 0%, #fbf6ec 100%);
  box-shadow: 0 2px 8px rgba(197, 160, 89, 0.15);
  transition: var(--transition);
}
.brand-logo:hover .logo-symbol {
  transform: rotate(45deg);
  border-color: var(--gold-hover);
}
.brand-logo .logo-text {
  display: flex;
  flex-direction: column;
}
.brand-logo .main-title {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #1e1b18;
}
.brand-logo .sub-domain {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--gold-accent);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 24px;
}
.nav-links li a {
  font-size: 1.02rem;
  color: var(--text-secondary);
  padding: 6px 4px;
  position: relative;
  font-weight: 500;
}
.nav-links li a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 1.5px;
  background: var(--gold-primary);
  transition: var(--transition);
  transform: translateX(-50%);
}
.nav-links li a:hover,
.nav-links li a.active {
  color: var(--gold-hover);
}
.nav-links li a:hover::after,
.nav-links li a.active::after {
  width: 100%;
}

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

/* 按钮风格 - 对应图1 Marble Luxury 高雅描边风格 */
.btn-luxury-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 24px;
  font-size: 1rem;
  color: #1e1b18;
  border: 1px solid var(--gold-accent);
  background: #ffffff;
  border-radius: var(--radius-sm);
  letter-spacing: 0.08em;
  transition: var(--transition);
  position: relative;
  box-shadow: 0 2px 6px rgba(197, 160, 89, 0.1);
}
.btn-luxury-outline:hover {
  background: #1e1b18;
  color: #f7eedf;
  border-color: #1e1b18;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.btn-luxury-gold {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 28px;
  font-size: 1.05rem;
  font-weight: 600;
  color: #ffffff;
  background: linear-gradient(135deg, #c5a059 0%, #b89047 100%);
  border: 1px solid #c5a059;
  border-radius: var(--radius-sm);
  letter-spacing: 0.08em;
  box-shadow: 0 4px 15px rgba(184, 144, 71, 0.28);
  transition: var(--transition);
}
.btn-luxury-gold:hover {
  background: linear-gradient(135deg, #a77e33 0%, #8c6722 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(184, 144, 71, 0.4);
  color: #ffffff;
}

/* 移动端汉堡按钮 */
.mobile-toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--text-primary);
}

/* Hero Section */
.hero-section {
  position: relative;
  padding: 85px 0 70px;
  text-align: center;
}
.hero-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  border: 1px solid var(--border-gold);
  background: rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-full);
  font-size: 0.92rem;
  color: var(--gold-hover);
  margin-bottom: 24px;
  box-shadow: var(--shadow-subtle);
}
.hero-badge-pill span.dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 8px #22c55e;
  display: inline-block;
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 700;
  line-height: 1.35;
  color: #1e1b18;
  margin-bottom: 18px;
  letter-spacing: 0.06em;
}
.hero-title .gold-gradient-text {
  background: linear-gradient(135deg, #c5a059 20%, #8c6722 80%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 840px;
  margin: 0 auto 34px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 980px;
  margin: 40px auto 0;
  padding: 24px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}
.stat-item {
  text-align: center;
  border-right: 1px solid rgba(197, 160, 89, 0.2);
}
.stat-item:last-child {
  border-right: none;
}
.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold-primary);
  margin-bottom: 4px;
  font-family: var(--font-kaiti);
}
.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* 核心优势板块 */
.section-wrapper {
  padding: 80px 0;
  position: relative;
}
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 50px;
}
.section-tag {
  display: inline-block;
  font-size: 0.88rem;
  letter-spacing: 0.2em;
  color: var(--gold-accent);
  text-transform: uppercase;
  margin-bottom: 10px;
  font-weight: 600;
  position: relative;
}
.section-tag::before, .section-tag::after {
  content: "—";
  margin: 0 8px;
  color: var(--gold-accent);
}
.section-heading {
  font-size: 2.35rem;
  color: #1e1b18;
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: 0.05em;
}
.section-desc {
  font-size: 1.08rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.feature-card {
  background: #ffffff;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-md);
  padding: 34px 28px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #c5a059, #b89047);
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--gold-accent);
}
.feature-card:hover::before {
  opacity: 1;
}
.feature-icon-box {
  width: 54px;
  height: 54px;
  background: var(--bg-gold-light);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--gold-primary);
  margin-bottom: 20px;
}
.feature-title {
  font-size: 1.35rem;
  color: #1e1b18;
  font-weight: 700;
  margin-bottom: 12px;
}
.feature-text {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* ===================================================================
   价格套餐板块 (完全对齐图2 UI与规格参数)
   =================================================================== */
.pricing-section {
  background: linear-gradient(180deg, rgba(246, 240, 228, 0.4) 0%, rgba(250, 248, 245, 0.9) 100%);
  border-top: 1px solid var(--border-gold);
  border-bottom: 1px solid var(--border-gold);
}

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

.pricing-card {
  background: #ffffff;
  border: 1px solid #dce2eb;
  border-radius: 20px;
  padding: 36px 30px 28px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 18px 45px rgba(184, 144, 71, 0.16);
}

/* 图2 爆款推荐高亮中间卡片 */
.pricing-card.featured {
  border: 2px solid #5a95f5;
  box-shadow: 0 14px 40px rgba(90, 149, 245, 0.14);
  transform: scale(1.02);
  overflow: hidden;
}
.pricing-card.featured:hover {
  transform: scale(1.02) translateY(-8px);
}

/* 右上角爆款推荐斜切缎带 */
.ribbon-hot {
  position: absolute;
  top: 18px;
  right: -32px;
  transform: rotate(45deg);
  background: linear-gradient(135deg, #e65138 0%, #db3d23 100%);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 5px 38px;
  box-shadow: 0 2px 8px rgba(219, 61, 35, 0.3);
  letter-spacing: 0.06em;
  z-index: 2;
}

.plan-header {
  margin-bottom: 20px;
}
.plan-code {
  font-size: 0.85rem;
  font-weight: 700;
  color: #1e62c6;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
  text-transform: uppercase;
}
.plan-title {
  font-size: 1.7rem;
  font-weight: 800;
  color: #1e2432;
  margin-bottom: 10px;
}
.plan-desc {
  font-size: 0.92rem;
  color: #636b79;
  line-height: 1.6;
  min-height: 48px;
}

.plan-price-wrap {
  display: flex;
  align-items: baseline;
  margin: 18px 0 26px;
  padding-bottom: 22px;
  border-bottom: 1px dashed rgba(0, 0, 0, 0.08);
}
.plan-currency {
  font-size: 1.6rem;
  font-weight: 800;
  color: #0d213a;
  margin-right: 2px;
}
.plan-amount {
  font-size: 2.8rem;
  font-weight: 900;
  color: #0d213a;
  line-height: 1;
}
.plan-cycle {
  font-size: 0.95rem;
  color: #798291;
  margin-left: 8px;
}

.plan-features-list {
  list-style: none;
  margin-bottom: 30px;
  flex-grow: 1;
}
.plan-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  color: #384252;
  margin-bottom: 14px;
  line-height: 1.6;
}
.plan-features-list li .check-icon {
  color: #10b981;
  font-weight: bold;
  font-size: 1.05rem;
  flex-shrink: 0;
  margin-top: 1px;
}

/* 按钮样式（与图2保持一致） */
.btn-plan {
  width: 100%;
  padding: 13px 20px;
  border-radius: var(--radius-full);
  font-size: 1.05rem;
  font-weight: 700;
  text-align: center;
  transition: var(--transition);
  display: block;
}
.btn-plan-outline {
  border: 1px solid #d4dbe5;
  color: #273142;
  background: #fbfcfe;
}
.btn-plan-outline:hover {
  border-color: #0d213a;
  background: #0d213a;
  color: #ffffff;
}

.btn-plan-primary {
  background: linear-gradient(135deg, #184e9c 0%, #103c7c 100%);
  color: #ffffff;
  border: 1px solid #184e9c;
  box-shadow: 0 6px 18px rgba(24, 78, 156, 0.28);
}
.btn-plan-primary:hover {
  background: linear-gradient(135deg, #0e356c 0%, #09254d 100%);
  box-shadow: 0 8px 24px rgba(24, 78, 156, 0.4);
  color: #ffffff;
}

.plan-footer-note {
  font-size: 0.84rem;
  color: #636e7f;
  text-align: center;
  margin-top: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

/* 适合人群板块 */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.audience-card {
  background: #ffffff;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  text-align: center;
  box-shadow: var(--shadow-subtle);
  transition: var(--transition);
}
.audience-card:hover {
  transform: translateY(-5px);
  border-color: var(--gold-accent);
  box-shadow: var(--shadow-hover);
}
.audience-icon {
  font-size: 2.2rem;
  margin-bottom: 12px;
  display: inline-block;
}
.audience-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #1e1b18;
  margin-bottom: 8px;
}
.audience-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* 使用教程与客户端板块 */
.tutorials-container {
  background: #ffffff;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-md);
  padding: 40px;
  box-shadow: var(--shadow-card);
}
.client-tabs {
  display: flex;
  justify-content: center;
  gap: 16px;
  border-bottom: 1px solid var(--border-gold);
  padding-bottom: 20px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}
.client-tab-btn {
  padding: 10px 24px;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-sm);
  background: var(--bg-gold-light);
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}
.client-tab-btn.active, .client-tab-btn:hover {
  background: #1e1b18;
  color: #f7eedf;
  border-color: #1e1b18;
}
.client-content-panel {
  display: none;
}
.client-content-panel.active {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
}
.tutorial-steps {
  list-style: none;
}
.tutorial-steps li {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}
.step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gold-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  flex-shrink: 0;
  font-size: 0.95rem;
}
.step-info h4 {
  font-size: 1.15rem;
  color: #1e1b18;
  margin-bottom: 4px;
}
.step-info p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}
.client-download-box {
  background: var(--bg-marble);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-md);
  padding: 30px;
  text-align: center;
}

/* ===================================================================
   50个常见问题 FAQ 板块 (以良心云机场为关键字，带搜索与分类切换)
   =================================================================== */
.faq-search-box {
  max-width: 640px;
  margin: 0 auto 30px;
  position: relative;
}
.faq-input {
  width: 100%;
  padding: 14px 22px 14px 46px;
  font-size: 1.05rem;
  font-family: inherit;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-full);
  background: #ffffff;
  box-shadow: var(--shadow-subtle);
  outline: none;
  transition: var(--transition);
}
.faq-input:focus {
  border-color: var(--gold-primary);
  box-shadow: 0 0 0 3px rgba(184, 144, 71, 0.18);
}
.faq-search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gold-primary);
  font-size: 1.2rem;
}
.faq-categories {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 34px;
  flex-wrap: wrap;
}
.faq-cat-btn {
  padding: 8px 18px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-gold);
  background: #ffffff;
  color: var(--text-secondary);
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
}
.faq-cat-btn.active, .faq-cat-btn:hover {
  background: var(--gold-primary);
  color: #ffffff;
  border-color: var(--gold-primary);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: #ffffff;
  border: 1px solid rgba(197, 160, 89, 0.28);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-subtle);
  transition: var(--transition);
}
.faq-item:hover {
  border-color: var(--gold-accent);
}
.faq-question {
  width: 100%;
  padding: 20px 24px;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.12rem;
  font-weight: 700;
  color: #1e1b18;
  cursor: pointer;
  gap: 16px;
  background: #ffffff;
  transition: var(--transition);
}
.faq-question:hover {
  color: var(--gold-hover);
  background: rgba(251, 247, 238, 0.6);
}
.faq-icon-arrow {
  font-size: 1rem;
  color: var(--gold-primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-icon-arrow {
  transform: rotate(180deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  background: #fdfcfb;
}
.faq-item.open .faq-answer {
  max-height: 1000px;
  padding: 0 24px 22px;
  border-top: 1px dashed rgba(197, 160, 89, 0.2);
}
.faq-answer p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-top: 14px;
}

/* ===================================================================
   文章知识库板块 (12篇高权重原创长文展示)
   =================================================================== */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.article-card {
  background: #ffffff;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-md);
  padding: 26px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
}
.article-card:hover {
  transform: translateY(-6px);
  border-color: var(--gold-accent);
  box-shadow: var(--shadow-hover);
}
.article-meta-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.84rem;
  color: var(--gold-hover);
  margin-bottom: 12px;
}
.article-meta-badge {
  background: var(--bg-gold-light);
  border: 1px solid var(--border-gold);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
}
.article-title {
  font-size: 1.22rem;
  font-weight: 700;
  color: #1e1b18;
  line-height: 1.5;
  margin-bottom: 12px;
}
.article-title a:hover {
  color: var(--gold-hover);
}
.article-excerpt {
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
  flex-grow: 1;
}
.article-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  padding-top: 14px;
  font-size: 0.86rem;
  color: var(--text-muted);
}
.article-read-btn {
  color: var(--gold-hover);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.article-read-btn:hover {
  text-decoration: underline;
}

/* 优惠码专区条幅 */
.promo-strip-box {
  background: linear-gradient(135deg, #1e1b18 0%, #352e25 100%);
  border: 1px solid var(--gold-accent);
  border-radius: var(--radius-lg);
  padding: 36px 44px;
  margin: 50px auto 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #ffffff;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.25);
  flex-wrap: wrap;
  gap: 24px;
}
.promo-strip-text h3 {
  font-size: 1.65rem;
  margin-bottom: 8px;
  color: #f7eedf;
}
.promo-strip-text p {
  color: #d1c4b2;
  font-size: 1rem;
}
.promo-strip-action {
  display: flex;
  align-items: center;
  gap: 14px;
}
.promo-code-pill {
  border: 1.5px dashed var(--gold-accent);
  background: rgba(255, 255, 255, 0.1);
  padding: 10px 20px;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: #f8db9f;
  border-radius: var(--radius-sm);
  user-select: all;
}

/* SEO 关键词标签云 */
.seo-tags-section {
  padding: 50px 0;
  border-top: 1px solid var(--border-gold);
  background: rgba(255, 255, 255, 0.6);
}
.seo-tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 20px;
}
.seo-tag-link {
  font-size: 0.9rem;
  padding: 5px 14px;
  background: #ffffff;
  border: 1px solid rgba(197, 160, 89, 0.35);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: var(--transition);
}
.seo-tag-link:hover {
  background: var(--bg-gold-light);
  color: var(--gold-hover);
  border-color: var(--gold-accent);
}

/* 页脚 */
.site-footer {
  background: #181512;
  color: #a89f91;
  padding: 60px 0 30px;
  border-top: 2px solid var(--gold-accent);
  font-size: 0.94rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-col h4 {
  color: #f3ede2;
  font-size: 1.15rem;
  margin-bottom: 20px;
  font-weight: 700;
  letter-spacing: 0.05em;
  position: relative;
  padding-bottom: 8px;
}
.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--gold-primary);
}
.footer-links-list {
  list-style: none;
}
.footer-links-list li {
  margin-bottom: 10px;
}
.footer-links-list li a:hover {
  color: #f7eedf;
  text-decoration: underline;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.86rem;
}

/* ===================================================================
   文章内页专用样式 (Article Layout)
   =================================================================== */
.article-page-header {
  padding: 50px 0 35px;
  background: linear-gradient(180deg, #f7f2ea 0%, #faf8f5 100%);
  border-bottom: 1px solid var(--border-gold);
}
.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 18px;
}
.article-breadcrumb a:hover {
  color: var(--gold-hover);
}
.article-page-title {
  font-size: 2.35rem;
  font-weight: 800;
  color: #1e1b18;
  line-height: 1.4;
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}
.article-page-stats {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 0.92rem;
  color: var(--text-secondary);
  border-top: 1px dashed rgba(197, 160, 89, 0.3);
  padding-top: 16px;
}
.stat-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-content-wrapper {
  padding: 50px 0 70px;
}
.article-layout-grid {
  display: grid;
  grid-template-columns: 820px 1fr;
  gap: 40px;
  align-items: start;
}
.article-body {
  background: #ffffff;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-md);
  padding: 44px 40px;
  box-shadow: var(--shadow-card);
  font-size: 1.08rem;
  color: #2c2925;
  line-height: 2.05;
}
.article-body h2 {
  font-size: 1.68rem;
  color: #1e1b18;
  margin: 38px 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-gold);
  position: relative;
}
.article-body h2::before {
  content: "§ ";
  color: var(--gold-primary);
  font-weight: bold;
}
.article-body h3 {
  font-size: 1.35rem;
  color: #27221e;
  margin: 28px 0 12px;
}
.article-body p {
  margin-bottom: 20px;
  text-indent: 2em;
}
.article-body p.no-indent {
  text-indent: 0;
}
.article-body ul, .article-body ol {
  margin: 0 0 24px 28px;
}
.article-body li {
  margin-bottom: 8px;
}
.article-body blockquote {
  background: var(--bg-gold-light);
  border-left: 4px solid var(--gold-primary);
  padding: 16px 20px;
  margin: 24px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: #4f473e;
  font-style: italic;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 26px 0;
  font-size: 0.98rem;
}
.article-body th, .article-body td {
  border: 1px solid var(--border-gold);
  padding: 12px 16px;
  text-align: left;
}
.article-body th {
  background: var(--bg-alt);
  color: #1e1b18;
  font-weight: 700;
}
.article-body tr:nth-child(even) {
  background: #fdfbf7;
}

/* 内部跳转卡片 */
.internal-jump-card {
  background: linear-gradient(135deg, #fdfbf7 0%, #f7f1e6 100%);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  margin: 28px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.jump-text {
  font-size: 1rem;
  font-weight: 600;
  color: #1e1b18;
}

/* 文章专属 FAQ 区域 */
.article-faq-section {
  margin-top: 50px;
  padding-top: 36px;
  border-top: 2px dashed var(--border-gold);
}
.article-faq-section h3 {
  font-size: 1.45rem;
  color: #1e1b18;
  margin-bottom: 20px;
}

/* 侧边栏 */
.article-sidebar {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.sidebar-widget {
  background: #ffffff;
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-subtle);
}
.sidebar-widget h4 {
  font-size: 1.15rem;
  color: #1e1b18;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border-gold);
  padding-bottom: 8px;
}
.sidebar-plan-card {
  text-align: center;
  background: var(--bg-gold-light);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-sm);
  padding: 20px;
}

/* 浮动返回顶部与悬浮注册 */
.floating-actions {
  position: fixed;
  bottom: 30px;
  right: 30px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 99;
}
.floating-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid var(--gold-accent);
  color: var(--gold-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
  transition: var(--transition);
}
.floating-btn:hover {
  background: #1e1b18;
  color: #fff;
  transform: translateY(-3px);
}

/* 响应式断点 */
@media (max-width: 1024px) {
  .features-grid, .pricing-cards-grid, .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: translateY(-8px);
  }
  .audience-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .article-layout-grid {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 78px;
    left: 0;
    width: 100%;
    background: #ffffff;
    flex-direction: column;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-gold);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
  }
  .nav-links.show {
    display: flex;
  }
  .mobile-toggle {
    display: block;
  }
  .features-grid, .pricing-cards-grid, .articles-grid, .audience-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .client-content-panel.active {
    grid-template-columns: 1fr;
  }
  .article-body {
    padding: 24px 20px;
  }
}