/* ===================================================================
   新华云 XinHuaCloud.lol 03｜玻璃质感套餐门户 (Glass Pricing Portal) 样式表
   主题色彩规范：
   主背景：#F6FAFF
   玻璃白：rgba(255, 255, 255, 0.72)
   品牌蓝：#397DFF
   科技青：#63D7F5
   柔和紫：#9A85FF
   标题文字：#16345B
   正文文字：#4D6480
   边框高光：rgba(255, 255, 255, 0.75)
   卡片阴影：低透明度蓝色 (rgba(57, 125, 255, 0.08))
   =================================================================== */

:root {
  --bg-primary: #F6FAFF;
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-bg-hover: rgba(255, 255, 255, 0.88);
  --glass-nav: rgba(255, 255, 255, 0.82);
  --glass-border: rgba(255, 255, 255, 0.85);
  --glass-border-subtle: rgba(210, 226, 255, 0.45);
  --color-brand: #397DFF;
  --color-brand-hover: #2566E8;
  --color-cyan: #63D7F5;
  --color-purple: #9A85FF;
  --text-title: #16345B;
  --text-body: #4D6480;
  --text-muted: #7E95B1;
  --text-light: #FFFFFF;
  --shadow-glass: 0 12px 36px -8px rgba(57, 125, 255, 0.09), 0 4px 12px -2px rgba(99, 215, 245, 0.05);
  --shadow-hover: 0 20px 48px -10px rgba(57, 125, 255, 0.16), 0 8px 24px -4px rgba(154, 133, 255, 0.12);
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --radius-pill: 9999px;
  --transition-normal: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-body);
  line-height: 1.65;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  background: 
    radial-gradient(circle at 10% 15%, rgba(99, 215, 245, 0.18) 0%, transparent 40%),
    radial-gradient(circle at 85% 10%, rgba(154, 133, 255, 0.16) 0%, transparent 45%),
    radial-gradient(circle at 50% 60%, rgba(57, 125, 255, 0.08) 0%, transparent 50%),
    var(--bg-primary);
}

/* 链接与排版 */
a {
  color: var(--color-brand);
  text-decoration: none;
  transition: var(--transition-normal);
}

a:hover {
  color: var(--color-brand-hover);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-title);
  font-weight: 700;
  line-height: 1.35;
}

p {
  margin-bottom: 1rem;
}

ul, ol {
  padding-left: 1.4rem;
  margin-bottom: 1rem;
}

li {
  margin-bottom: 0.4rem;
}

/* 容器定义 */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* 毛玻璃卡片通用类 */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-glass);
  border-radius: var(--radius-lg);
  transition: var(--transition-normal);
}

.glass-panel:hover {
  box-shadow: var(--shadow-hover);
}

/* 导航栏 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--glass-nav);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 20px rgba(57, 125, 255, 0.04);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.brand-logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-brand) 55%, var(--color-purple) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(57, 125, 255, 0.28);
  position: relative;
  overflow: hidden;
}

/* Logo 玻璃光泽微扫动效 */
.brand-logo-icon::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -60%;
  width: 40%;
  height: 200%;
  background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.4), transparent);
  transform: rotate(30deg);
  animation: logoSheen 6s infinite ease-in-out;
}

@keyframes logoSheen {
  0%, 75% { transform: translateX(-150%) rotate(30deg); }
  85%, 100% { transform: translateX(350%) rotate(30deg); }
}

.brand-logo-icon svg {
  width: 24px;
  height: 24px;
  fill: #FFFFFF;
}

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

.brand-name-cn {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-title);
  letter-spacing: -0.5px;
  line-height: 1.15;
}

.brand-name-en {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-brand);
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 2rem;
  margin: 0;
  padding: 0;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-title);
  position: relative;
  padding: 0.5rem 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-brand), var(--color-cyan));
  border-radius: 2px;
  transition: width 0.3s ease;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition-normal);
  text-decoration: none;
  line-height: 1.2;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-brand) 0%, #2960E0 100%);
  color: #FFFFFF;
  box-shadow: 0 6px 20px -3px rgba(57, 125, 255, 0.42);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-brand-hover) 0%, #1D50CD 100%);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px -3px rgba(57, 125, 255, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.85);
  color: var(--color-brand);
  border: 1px solid rgba(57, 125, 255, 0.25);
  box-shadow: 0 4px 14px rgba(57, 125, 255, 0.08);
}

.btn-secondary:hover {
  background: #FFFFFF;
  border-color: var(--color-brand);
  color: var(--color-brand-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(57, 125, 255, 0.16);
}

.btn-sm {
  padding: 0.5rem 1.1rem;
  font-size: 0.88rem;
}

.btn-block {
  width: 100%;
}

/* 移动端汉堡菜单 */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--text-title);
}

/* Hero 首屏 */
.hero-section {
  padding: 4.5rem 0 3.5rem;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 3rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(99, 215, 245, 0.4);
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-brand);
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 16px rgba(57, 125, 255, 0.08);
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--text-title);
  letter-spacing: -1px;
  line-height: 1.25;
  margin-bottom: 1.25rem;
}

.hero-title span {
  background: linear-gradient(135deg, var(--color-brand) 0%, #7656FF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.12rem;
  line-height: 1.7;
  color: var(--text-body);
  margin-bottom: 2.2rem;
  max-width: 580px;
}

.hero-buttons {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

/* Hero 玻璃插图 */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.glass-cloud-card {
  width: 100%;
  max-width: 480px;
  padding: 2.5rem;
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 28px;
  box-shadow: 0 20px 50px -10px rgba(57, 125, 255, 0.14);
  position: relative;
  overflow: hidden;
}

.cloud-graphic-svg {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 12px 24px rgba(57, 125, 255, 0.15));
}

.hero-floating-stat {
  position: absolute;
  padding: 0.85rem 1.25rem;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 28px rgba(57, 125, 255, 0.12);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-title);
  animation: floatCard 4s ease-in-out infinite;
}

.hero-stat-1 {
  top: 10%;
  right: -5%;
  animation-delay: 0s;
}

.hero-stat-2 {
  bottom: 8%;
  left: -5%;
  animation-delay: 2s;
}

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

/* 核心优势区域 */
.section {
  padding: 5rem 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem;
}

.section-badge {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  background: rgba(57, 125, 255, 0.08);
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-brand);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}

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

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1.8rem;
}

.advantage-card {
  padding: 2.2rem 2rem;
  display: flex;
  flex-direction: column;
}

.advantage-card:hover {
  transform: translateY(-4px);
}

.advantage-icon-wrap {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(99, 215, 245, 0.25) 0%, rgba(57, 125, 255, 0.15) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brand);
  margin-bottom: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.8);
}

.advantage-icon-wrap svg {
  width: 28px;
  height: 28px;
}

.advantage-title {
  font-size: 1.3rem;
  margin-bottom: 0.85rem;
}

.advantage-desc {
  font-size: 0.95rem;
  color: var(--text-body);
  line-height: 1.7;
  flex-grow: 1;
  margin-bottom: 1.5rem;
}

.advantage-link {
  font-size: 0.92rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

/* 重点套餐卡片区 */
.pricing-section {
  padding: 5.5rem 0;
  background: linear-gradient(180deg, transparent 0%, rgba(210, 230, 255, 0.25) 50%, transparent 100%);
}

.audit-notice-bar {
  max-width: 900px;
  margin: 0 auto 3rem;
  padding: 1rem 1.5rem;
  background: rgba(255, 255, 255, 0.78);
  border: 1px dashed rgba(57, 125, 255, 0.35);
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  color: var(--text-body);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.audit-notice-bar strong {
  color: var(--color-brand);
  white-space: nowrap;
}

.pricing-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
  margin-bottom: 3.5rem;
}

.pricing-card {
  padding: 2.8rem 2.2rem;
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-4px);
}

.pricing-card.featured {
  background: rgba(255, 255, 255, 0.86);
  border: 2px solid rgba(57, 125, 255, 0.6);
  box-shadow: 0 16px 48px -6px rgba(57, 125, 255, 0.18);
  transform: scale(1.02);
}

.pricing-card.featured:hover {
  transform: scale(1.02) translateY(-4px);
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.35rem 1.2rem;
  background: linear-gradient(135deg, var(--color-brand) 0%, var(--color-purple) 100%);
  color: #FFFFFF;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(57, 125, 255, 0.3);
}

.pricing-header {
  text-align: center;
  padding-bottom: 1.8rem;
  border-bottom: 1px solid var(--glass-border-subtle);
  margin-bottom: 1.8rem;
}

.pricing-plan-name {
  font-size: 1.45rem;
  margin-bottom: 0.6rem;
}

.pricing-price-wrap {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.25rem;
  margin-bottom: 0.5rem;
}

.pricing-currency {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-brand);
}

.pricing-amount {
  font-size: 3.4rem;
  font-weight: 800;
  color: var(--text-title);
  line-height: 1;
}

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

.pricing-traffic-tag {
  display: inline-block;
  padding: 0.25rem 0.85rem;
  background: rgba(99, 215, 245, 0.15);
  color: #0E7490;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 700;
}

.pricing-features-list {
  list-style: none;
  padding: 0;
  margin: 0 0 2rem;
  flex-grow: 1;
}

.pricing-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.92rem;
  margin-bottom: 0.9rem;
  line-height: 1.5;
}

.feature-check-icon {
  width: 18px;
  height: 18px;
  color: var(--color-brand);
  flex-shrink: 0;
  margin-top: 2px;
}

.pricing-suitable {
  font-size: 0.85rem;
  color: var(--text-muted);
  background: rgba(240, 246, 255, 0.7);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.8rem;
  line-height: 1.4;
}

/* 套餐对比表格 */
.comparison-wrap {
  margin-top: 3.5rem;
  overflow-x: auto;
  border-radius: var(--radius-lg);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--glass-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-glass);
  text-align: left;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.comparison-table th,
.comparison-table td {
  padding: 1.2rem 1.4rem;
  border-bottom: 1px solid var(--glass-border-subtle);
  font-size: 0.92rem;
}

.comparison-table th {
  background: rgba(235, 244, 255, 0.75);
  color: var(--text-title);
  font-weight: 700;
  font-size: 0.98rem;
}

.comparison-table tr:hover td {
  background: rgba(255, 255, 255, 0.5);
}

/* 套餐选购指导 & 流量计算器 */
.calculator-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  padding: 3rem;
  margin-top: 2rem;
}

.calc-questions {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.calc-group label {
  display: block;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.calc-select {
  width: 100%;
  padding: 0.8rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border-subtle);
  background: rgba(255, 255, 255, 0.9);
  color: var(--text-title);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-normal);
}

.calc-select:focus {
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px rgba(57, 125, 255, 0.15);
}

.calc-result-box {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.85) 0%, rgba(235, 245, 255, 0.9) 100%);
  padding: 2.2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  box-shadow: 0 10px 30px rgba(57, 125, 255, 0.08);
  text-align: center;
}

.calc-est-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.calc-est-traffic {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-brand);
  margin-bottom: 1rem;
}

.calc-est-plan {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 1.5rem;
}

/* 使用场景横向毛玻璃 */
.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.8rem;
}

.scenario-card {
  padding: 2.2rem;
  display: flex;
  flex-direction: column;
}

.scenario-card:hover {
  transform: translateY(-4px);
}

.scenario-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(99, 215, 245, 0.15);
  color: #0284C7;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 1rem;
  align-self: flex-start;
}

.scenario-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.scenario-desc {
  font-size: 0.95rem;
  color: var(--text-body);
  line-height: 1.65;
  margin-bottom: 1.2rem;
  flex-grow: 1;
}

.scenario-tip {
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px dashed var(--glass-border-subtle);
  padding-top: 0.85rem;
  line-height: 1.45;
}

/* 六篇知识文章网格 */
.guides-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.guide-card {
  padding: 2.2rem;
  display: flex;
  flex-direction: column;
}

.guide-card:hover {
  transform: translateY(-4px);
}

.guide-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  font-size: 0.82rem;
}

.guide-category {
  padding: 0.25rem 0.75rem;
  background: rgba(57, 125, 255, 0.1);
  color: var(--color-brand);
  border-radius: var(--radius-pill);
  font-weight: 700;
}

.guide-date {
  color: var(--text-muted);
}

.guide-title {
  font-size: 1.2rem;
  margin-bottom: 0.85rem;
  line-height: 1.4;
}

.guide-title a {
  color: var(--text-title);
}

.guide-title a:hover {
  color: var(--color-brand);
}

.guide-summary {
  font-size: 0.92rem;
  color: var(--text-body);
  line-height: 1.65;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.guide-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--glass-border-subtle);
  padding-top: 1.2rem;
}

.guide-readtime {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* 用户评价 & 反馈模块（图二六卡片网格模式） */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
  margin-bottom: 2.5rem;
}

.review-card {
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
}

.review-card:hover {
  transform: translateY(-4px);
}

.review-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #10B981 0%, #059669 100%);
  color: #FFFFFF;
  font-weight: 800;
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
  flex-shrink: 0;
}

.review-card:nth-child(2) .review-avatar {
  background: linear-gradient(135deg, #3B82F6 0%, #1D4ED8 100%);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}
.review-card:nth-child(3) .review-avatar {
  background: linear-gradient(135deg, #8B5CF6 0%, #6D28D9 100%);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.25);
}
.review-card:nth-child(4) .review-avatar {
  background: linear-gradient(135deg, #06B6D4 0%, #0891B2 100%);
  box-shadow: 0 4px 12px rgba(6, 182, 212, 0.25);
}
.review-card:nth-child(5) .review-avatar {
  background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.25);
}
.review-card:nth-child(6) .review-avatar {
  background: linear-gradient(135deg, #EC4899 0%, #BE185D 100%);
  box-shadow: 0 4px 12px rgba(236, 72, 153, 0.25);
}

.review-meta {
  display: flex;
  flex-direction: column;
}

.review-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-title);
  line-height: 1.2;
}

.review-role {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.review-stars {
  color: #F59E0B;
  font-size: 0.95rem;
  letter-spacing: 2px;
  white-space: nowrap;
}

.review-body {
  font-size: 0.93rem;
  color: var(--text-body);
  line-height: 1.68;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.review-footer {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.review-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
}

.reviews-cta-wrap {
  text-align: center;
  padding: 2rem 1.5rem;
  max-width: 720px;
  margin: 0 auto;
}

.feedback-box {
  padding: 3rem;
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}

.feedback-callout {
  font-size: 0.92rem;
  color: var(--color-brand);
  background: rgba(57, 125, 255, 0.08);
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius-md);
  margin: 1.5rem auto 2rem;
  max-width: 680px;
}

/* 常见问题 FAQ 折叠面板 */
.faqs-container {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-normal);
}

.faq-question-btn {
  width: 100%;
  text-align: left;
  padding: 1.35rem 1.6rem;
  background: none;
  border: none;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-title);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.faq-icon-arrow {
  width: 20px;
  height: 20px;
  color: var(--color-brand);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 1.6rem;
  font-size: 0.95rem;
  color: var(--text-body);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 0 1.6rem 1.4rem;
}

/* 文章详情页样式 */
.article-header {
  padding: 3.5rem 0 2rem;
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.breadcrumbs a {
  color: var(--text-body);
}

.breadcrumbs a:hover {
  color: var(--color-brand);
}

.article-title {
  font-size: 2.3rem;
  margin-bottom: 1.2rem;
  line-height: 1.3;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.article-container {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3rem;
  align-items: flex-start;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem 5rem;
}

/* 目录粘性侧栏 */
.article-toc-sticky {
  position: sticky;
  top: 90px;
  padding: 1.8rem;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}

.toc-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-title);
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc-list li {
  margin-bottom: 0.6rem;
}

.toc-list a {
  font-size: 0.88rem;
  color: var(--text-body);
  display: block;
  line-height: 1.4;
  padding: 0.25rem 0;
}

.toc-list a:hover {
  color: var(--color-brand);
  transform: translateX(3px);
}

/* 文章正文区域 */
.article-body {
  padding: 3rem;
}

.article-body h2 {
  font-size: 1.6rem;
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--glass-border-subtle);
}

.article-body h3 {
  font-size: 1.25rem;
  margin: 1.8rem 0 0.8rem;
}

.article-body p {
  font-size: 1.02rem;
  line-height: 1.8;
  margin-bottom: 1.4rem;
}

.article-summary-box {
  background: rgba(235, 245, 255, 0.7);
  border-left: 4px solid var(--color-brand);
  padding: 1.2rem 1.5rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 2rem;
  font-size: 0.98rem;
  line-height: 1.7;
}

.article-cta-box {
  background: linear-gradient(135deg, rgba(235, 245, 255, 0.9) 0%, rgba(220, 235, 255, 0.7) 100%);
  border: 1px solid rgba(57, 125, 255, 0.3);
  padding: 2.2rem;
  border-radius: var(--radius-md);
  margin: 3rem 0;
  text-align: center;
}

.article-cta-box h3 {
  margin-top: 0;
  margin-bottom: 0.6rem;
  font-size: 1.35rem;
}

/* 检查清单样式 */
.checklist-box {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--glass-border-subtle);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  margin: 2rem 0;
}

.checklist-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 1rem;
}

.checklist-items {
  list-style: none;
  padding: 0;
  margin: 0;
}

.checklist-items li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
  line-height: 1.5;
}

/* 相关文章模块 */
.related-articles-section {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--glass-border-subtle);
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 1.2rem;
}

.related-card {
  padding: 1.5rem;
  border-radius: var(--radius-md);
}

/* 页脚 */
.site-footer {
  background: rgba(240, 246, 255, 0.85);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--glass-border);
  padding: 4.5rem 0 2.5rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 3.5rem;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-top: 1rem;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 1.05rem;
  margin-bottom: 1.2rem;
  color: var(--text-title);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.65rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-body);
}

.footer-links a:hover {
  color: var(--color-brand);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--glass-border-subtle);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* 模态框通用 */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 30, 55, 0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: 1.5rem;
}

.modal-overlay.open {
  display: flex;
}

.modal-content {
  width: 100%;
  max-width: 520px;
  padding: 2.5rem;
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px rgba(15, 30, 55, 0.2);
  position: relative;
}

.modal-close-btn {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--text-muted);
}

/* 响应式适配 */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    text-align: center;
  }
  .hero-subtitle {
    margin: 0 auto 2rem;
  }
  .hero-buttons {
    justify-content: center;
  }
  .pricing-cards-grid {
    grid-template-columns: 1fr;
    max-width: 460px;
    margin: 0 auto 3rem;
  }
  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: translateY(-4px);
  }
  .calculator-wrap {
    grid-template-columns: 1fr;
    padding: 2rem;
  }
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .article-container {
    grid-template-columns: 1fr;
  }
  .article-toc-sticky {
    display: none;
  }
  .article-body {
    padding: 2rem 1.5rem;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 1.5rem;
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 10px 30px rgba(57, 125, 255, 0.1);
    gap: 1rem;
  }
  .nav-menu.open {
    display: flex;
  }
  .menu-toggle {
    display: block;
  }
  .hero-title {
    font-size: 2rem;
  }
  .section-title {
    font-size: 1.8rem;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .scenarios-grid,
  .guides-grid {
    grid-template-columns: 1fr;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  /* 手机端降低毛玻璃开销，提升流畅度 */
  .glass-panel {
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.7rem;
  }
  .btn {
    width: 100%;
  }
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  .pricing-card {
    padding: 2rem 1.4rem;
  }
}

/* 尊重减少动态效果设置 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}