/* 咕嘎云 (Guga Cloud) - 手绘池塘风格样式表 (Hand-Drawn Pond Theme) */
@import url('https://fonts.googleapis.com/css2?family=Fredoka:wght@400;600;700&family=ZCOOL+KuaiLe&display=swap');

:root {
  --bg-pond: #FFF3DC;
  --bg-card: #FFFAF0;
  --bg-card-alt: #FFF6E6;
  --ink-brown: #4A3628;
  --ink-light: #735741;
  --accent-orange: #FF8A3D;
  --accent-orange-hover: #E77528;
  --accent-blue: #59A5D8;
  --accent-blue-hover: #438EC0;
  --accent-green: #74C69D;
  --accent-pink: #FFAAA6;
  --border-thick: 3px solid #4A3628;
  --shadow-squish: 0 6px 0 #4A3628;
  --shadow-squish-sm: 0 4px 0 #4A3628;
  --shadow-squish-lg: 0 10px 0 #4A3628;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-pill: 9999px;
  --font-cn: 'ZCOOL KuaiLe', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-en: 'Fredoka', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

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

body {
  background-color: var(--bg-pond);
  background-image: 
    radial-gradient(#E8D5B5 1.5px, transparent 1.5px),
    radial-gradient(#E2CFAD 1px, var(--bg-pond) 1px);
  background-size: 32px 32px;
  background-position: 0 0, 16px 16px;
  color: var(--ink-brown);
  font-family: var(--font-cn);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* 装饰性池塘波纹与浮萍背景 */
.pond-waves {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.ripple-deco {
  position: absolute;
  border: 2px dashed rgba(89, 165, 216, 0.35);
  border-radius: 50%;
  animation: rippleFloat 8s infinite ease-in-out;
}

@keyframes rippleFloat {
  0%, 100% { transform: scale(1) rotate(0deg); opacity: 0.4; }
  50% { transform: scale(1.08) rotate(10deg); opacity: 0.7; }
}

/* 容器规范 */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 2;
}

/* 手绘风格按钮基类 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-family: var(--font-cn);
  font-size: 1.15rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--ink-brown);
  border: var(--border-thick);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-squish);
  background-color: var(--accent-orange);
  color: #FFF;
  text-shadow: 1px 1px 0 var(--ink-brown);
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.34, 1.56, 0.64, 1);
  user-select: none;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 0 #4A3628;
  background-color: var(--accent-orange-hover);
}

.btn:active {
  transform: translateY(4px);
  box-shadow: 0 2px 0 #4A3628;
}

.btn-secondary {
  background-color: var(--accent-blue);
  color: #FFF;
}

.btn-secondary:hover {
  background-color: var(--accent-blue-hover);
}

.btn-outline {
  background-color: #FFF;
  color: var(--ink-brown);
  text-shadow: none;
}

.btn-outline:hover {
  background-color: #FFF6E6;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.28rem;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.95rem;
}

/* 导航栏 */
.header-nav {
  position: sticky;
  top: 15px;
  z-index: 100;
  margin-bottom: 25px;
}

.nav-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #FFFDF8;
  border: var(--border-thick);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-squish);
  padding: 10px 24px;
}

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

.logo-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #FFE3A8;
  border: 2px solid var(--ink-brown);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 3px 0 var(--ink-brown);
}

.logo-title {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.logo-badge {
  background: var(--accent-orange);
  color: #FFF;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 12px;
  border: 1.5px solid var(--ink-brown);
  text-shadow: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink-brown);
  font-size: 1.1rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 14px;
  transition: all 0.2s ease;
}

.nav-links a:hover {
  background-color: #FFECC4;
  transform: rotate(-2deg);
}

.nav-links a.active-pill {
  background-color: var(--accent-blue);
  color: #FFF;
  border: 2px solid var(--ink-brown);
  box-shadow: 0 2px 0 var(--ink-brown);
  text-shadow: 1px 1px 0 var(--ink-brown);
}

.mobile-toggle {
  display: none;
  background: none;
  border: 2px solid var(--ink-brown);
  border-radius: 10px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 1.2rem;
}

/* 顶部公告条 */
.top-notice {
  background: #FFFDF6;
  border: 2px dashed var(--accent-orange);
  border-radius: var(--radius-md);
  padding: 10px 18px;
  text-align: center;
  font-size: 0.95rem;
  color: var(--ink-brown);
  margin-bottom: 25px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

/* 主视觉区 (Hero) */
.hero-section {
  padding: 30px 0 60px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 36px;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 3;
}

.hero-tag {
  display: inline-block;
  background: #EAF4FC;
  border: 2px solid var(--ink-brown);
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  margin-bottom: 16px;
  box-shadow: 0 3px 0 var(--ink-brown);
  transform: rotate(-1.5deg);
}

.hero-title {
  font-size: 3.1rem;
  line-height: 1.25;
  margin-bottom: 18px;
  color: var(--ink-brown);
  text-shadow: 2px 2px 0 #FFF;
}

.hero-title .highlight {
  color: var(--accent-orange);
  text-decoration: underline wavy var(--accent-blue);
  text-underline-offset: 8px;
}

.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.7;
  color: var(--ink-light);
  margin-bottom: 28px;
  background: rgba(255, 255, 255, 0.7);
  padding: 14px 20px;
  border-radius: 18px;
  border: 2px dashed var(--ink-brown);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
}

.hero-metrics {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.metric-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--ink-brown);
}

.metric-dot {
  width: 12px;
  height: 12px;
  background: var(--accent-green);
  border: 1.5px solid var(--ink-brown);
  border-radius: 50%;
  display: inline-block;
}

/* 交互式卡通云与池塘世界 */
.hero-pond-stage {
  position: relative;
  min-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pond-water-plate {
  position: absolute;
  width: 100%;
  height: 340px;
  background: #AEE2FF;
  border: var(--border-thick);
  border-radius: 255px 15px 225px 15px/15px 225px 15px 255px;
  box-shadow: var(--shadow-squish-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: 
    radial-gradient(ellipse at 50% 60%, #C4ECFF 0%, #AEE2FF 70%);
}

.pond-water-ripple {
  position: absolute;
  width: 220px;
  height: 70px;
  border: 3px solid rgba(255, 255, 255, 0.85);
  border-radius: 50%;
  animation: pulseWater 3s infinite ease-out;
}

@keyframes pulseWater {
  0% { transform: scale(0.6); opacity: 0.8; }
  100% { transform: scale(1.4); opacity: 0; }
}

/* 可点击大卡通云 */
.interactive-cloud {
  position: relative;
  z-index: 10;
  cursor: pointer;
  transition: transform 0.15s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  user-select: none;
}

.interactive-cloud:hover {
  transform: scale(1.04) translateY(-4px);
}

.cloud-body-svg {
  width: 280px;
  height: 190px;
  filter: drop-shadow(0 8px 0 rgba(74, 54, 40, 0.35));
}

.cloud-speech-bubble {
  position: absolute;
  top: -40px;
  right: 10px;
  background: #FFF;
  border: var(--border-thick);
  padding: 6px 14px;
  border-radius: 18px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-orange);
  box-shadow: 0 4px 0 var(--ink-brown);
  opacity: 0;
  transform: scale(0.5) translateY(10px);
  pointer-events: none;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 20;
}

.cloud-speech-bubble.active {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.cloud-speech-bubble::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 20px;
  border-width: 10px 8px 0;
  border-style: solid;
  border-color: #4A3628 transparent transparent;
}

.cloud-prompt-hint {
  position: absolute;
  bottom: -30px;
  left: 50%;
  transform: translateX(-50%);
  background: #FFFDF0;
  border: 2px solid var(--ink-brown);
  border-radius: 14px;
  font-size: 0.82rem;
  padding: 3px 12px;
  white-space: nowrap;
  box-shadow: 0 3px 0 var(--ink-brown);
}

/* 雨滴掉落容器 */
.rain-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 8;
  overflow: hidden;
}

.raindrop {
  position: absolute;
  width: 5px;
  height: 14px;
  background: var(--accent-blue);
  border-radius: 5px;
  animation: raindropFall 0.7s forwards ease-in;
}

@keyframes raindropFall {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(120px); opacity: 0; }
}

/* 跟随鼠标游动的鸭子 (Swimming Duck) */
#cursor-duck {
  position: fixed;
  top: 0;
  left: 0;
  width: 54px;
  height: 54px;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.08s ease-out;
  filter: drop-shadow(0 4px 0 rgba(74, 54, 40, 0.25));
}

.duck-inner {
  width: 100%;
  height: 100%;
  animation: duckBob 1.6s infinite ease-in-out;
  transform-origin: center bottom;
}

@keyframes duckBob {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-4px) rotate(4deg); }
}

/* 通用区块标题与卡片样式 */
.section {
  padding: 60px 0;
  position: relative;
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 40px;
}

.section-badge {
  display: inline-block;
  background: #FFF;
  border: 2px solid var(--ink-brown);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  box-shadow: 0 3px 0 var(--ink-brown);
  margin-bottom: 12px;
  color: var(--accent-orange);
  font-weight: 700;
}

.section-title {
  font-size: 2.3rem;
  color: var(--ink-brown);
  margin-bottom: 12px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--ink-light);
}

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

.sticker-card {
  background: var(--bg-card);
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  box-shadow: var(--shadow-squish);
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  display: flex;
  flex-direction: column;
}

.sticker-card:nth-child(1) {
  transform: rotate(-1.5deg);
}

.sticker-card:nth-child(2) {
  transform: rotate(1deg);
}

.sticker-card:nth-child(3) {
  transform: rotate(-1deg);
}

.sticker-card:hover {
  transform: translateY(-8px) rotate(0deg);
  box-shadow: var(--shadow-squish-lg);
  background: #FFFFFF;
}

.card-icon-wrap {
  width: 68px;
  height: 68px;
  border-radius: 20px;
  border: var(--border-thick);
  background: #FFEAA7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 20px;
  box-shadow: 0 4px 0 var(--ink-brown);
}

.card-title {
  font-size: 1.45rem;
  margin-bottom: 14px;
  color: var(--ink-brown);
}

.card-text {
  font-size: 1.02rem;
  color: var(--ink-light);
  line-height: 1.65;
  margin-bottom: 16px;
  flex-grow: 1;
}

.card-badge-pill {
  display: inline-block;
  background: #E8F5E9;
  border: 1.5px solid var(--ink-brown);
  border-radius: 12px;
  padding: 3px 10px;
  font-size: 0.85rem;
  color: #2E7D32;
  align-self: flex-start;
}

/* 流媒体与AI支持卡片 */
.unlock-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-bottom: 30px;
}

.unlock-box {
  background: #FFFFFF;
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-squish);
  position: relative;
}

.unlock-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.unlock-badge-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: #E2F0D9;
  border: 2px solid var(--ink-brown);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.unlock-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 15px;
}

.tag-item {
  background: #FFF2DF;
  border: 2px solid var(--ink-brown);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  font-size: 0.95rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* 节点分布与客户端支持条 */
.node-client-strip {
  background: #FFF9E6;
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-squish);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.strip-col h3 {
  font-size: 1.3rem;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.node-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.node-chip {
  background: #FFFFFF;
  border: 2px solid var(--ink-brown);
  border-radius: 12px;
  padding: 6px 12px;
  font-size: 0.92rem;
  font-weight: 700;
  box-shadow: 0 2px 0 var(--ink-brown);
}

/* 价格对比表 (Pricing) */
.pricing-section {
  background: #FFF8E7;
  border-top: var(--border-thick);
  border-bottom: var(--border-thick);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 35px;
}

.price-card {
  background: #FFFFFF;
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  box-shadow: var(--shadow-squish);
  position: relative;
  display: flex;
  flex-direction: column;
  transition: all 0.25s ease;
}

.price-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-squish-lg);
}

.price-card.popular {
  border-color: var(--ink-brown);
  background: #FFFBF0;
  transform: scale(1.03);
  z-index: 4;
}

.price-card.popular:hover {
  transform: scale(1.03) translateY(-6px);
}

.popular-ribbon {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-orange);
  color: #FFF;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: var(--radius-pill);
  border: 2px solid var(--ink-brown);
  box-shadow: 0 3px 0 var(--ink-brown);
  white-space: nowrap;
}

.plan-name {
  font-size: 1.5rem;
  margin-bottom: 6px;
  color: var(--ink-brown);
}

.plan-desc {
  font-size: 0.92rem;
  color: var(--ink-light);
  margin-bottom: 20px;
}

.plan-price {
  margin-bottom: 24px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.plan-price .currency {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent-orange);
}

.plan-price .amount {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  color: var(--accent-orange);
  font-family: var(--font-en);
}

.plan-price .unit {
  font-size: 1rem;
  color: var(--ink-light);
}

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

.plan-features li {
  padding: 8px 0;
  border-bottom: 1px dashed #E0D4C3;
  font-size: 0.98rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.plan-features li::before {
  content: "✔";
  color: var(--accent-green);
  font-weight: 700;
  font-size: 1.1rem;
}

/* 额外按量计费套餐折叠/平铺卡片 */
.metered-banner {
  background: #FFF;
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  box-shadow: var(--shadow-squish);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.metered-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* FAQ 常见问题手风琴 */
.faq-grid {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #FFF;
  border: var(--border-thick);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-squish-sm);
  overflow: hidden;
  transition: all 0.2s ease;
}

.faq-question {
  padding: 18px 24px;
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #FFFDF8;
  user-select: none;
}

.faq-icon {
  font-size: 1.3rem;
  transition: transform 0.25s ease;
}

.faq-answer {
  padding: 0 24px 20px;
  font-size: 1.02rem;
  color: var(--ink-light);
  line-height: 1.7;
}

/* 用户评价 (Customer Reviews) */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: #FFFDF7;
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--shadow-squish);
  position: relative;
}

.review-card:nth-child(1) { transform: rotate(-1deg); }
.review-card:nth-child(2) { transform: rotate(1.2deg); }
.review-card:nth-child(3) { transform: rotate(-0.8deg); }

.review-stars {
  color: #FFA41B;
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.review-text {
  font-size: 1rem;
  color: var(--ink-brown);
  line-height: 1.6;
  margin-bottom: 18px;
}

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

.reviewer-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--ink-brown);
  background: #FFEAA7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.reviewer-name {
  font-weight: 700;
  font-size: 1.05rem;
}

.reviewer-title {
  font-size: 0.85rem;
  color: var(--ink-light);
}

/* 页脚 (Footer) - 严格遵循4个标题打开新页面 */
.site-footer {
  background: #4A3628;
  color: #FFF3DC;
  padding: 50px 0 35px;
  border-top: 4px solid #36251A;
  margin-top: 60px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 28px;
}

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

.footer-brand-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: #FFF;
}

.footer-links-row {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 28px;
  list-style: none;
}

.footer-link-item a {
  color: #FFE6C5;
  text-decoration: none;
  font-size: 1.15rem;
  font-weight: 700;
  padding: 8px 18px;
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid #735741;
  border-radius: var(--radius-pill);
  transition: all 0.2s ease;
  display: inline-block;
}

.footer-link-item a:hover {
  background: var(--accent-orange);
  color: #FFF;
  border-color: #FFF;
  transform: translateY(-2px);
}

.footer-copyright {
  font-size: 0.9rem;
  color: #D4BEA9;
  margin-top: 10px;
}

/* 资讯与文章专区样式 (For news-guide.html & article cards) */
.articles-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.article-entry-card {
  background: #FFF;
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-squish);
  transition: transform 0.2s ease;
}

.article-entry-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-squish-lg);
}

.article-header {
  margin-bottom: 16px;
}

.article-title-link {
  font-size: 1.65rem;
  color: var(--ink-brown);
  text-decoration: none;
  transition: color 0.2s;
}

.article-title-link:hover {
  color: var(--accent-orange);
}

.article-meta-info {
  display: flex;
  gap: 16px;
  font-size: 0.9rem;
  color: var(--ink-light);
  margin-top: 8px;
}

.article-body-content {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--ink-brown);
}

.article-body-content p {
  margin-bottom: 16px;
}

.article-body-content h3 {
  font-size: 1.35rem;
  margin: 24px 0 12px;
  color: var(--ink-brown);
}

.article-body-content a {
  color: var(--accent-orange);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.article-body-content a:hover {
  color: var(--accent-blue);
}

.back-home-bar {
  margin-bottom: 25px;
}

/* 移动端媒体查询 (@media) 保证完美单栏 */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-metrics {
    justify-content: center;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .sticker-card {
    transform: none !important;
  }

  .unlock-grid {
    grid-template-columns: 1fr;
  }

  .node-client-strip {
    grid-template-columns: 1fr;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto 35px;
  }

  .price-card.popular {
    transform: none;
  }

  .price-card.popular:hover {
    transform: translateY(-6px);
  }

  .reviews-grid {
    grid-template-columns: 1fr;
  }

  .review-card {
    transform: none !important;
  }
}

@media (max-width: 768px) {
  .nav-box {
    flex-wrap: wrap;
    padding: 12px 18px;
  }

  .mobile-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 12px;
    padding-top: 14px;
    margin-top: 10px;
    border-top: 2px dashed #E0D4C3;
  }

  .nav-links.show {
    display: flex;
  }

  .hero-title {
    font-size: 2.1rem;
  }

  .hero-pond-stage {
    min-height: 290px;
  }

  .pond-water-plate {
    height: 270px;
  }

  .cloud-body-svg {
    width: 230px;
    height: 155px;
  }

  .btn-lg {
    width: 100%;
    padding: 14px 20px;
    font-size: 1.15rem;
  }

  .metered-banner {
    flex-direction: column;
    align-items: stretch;
  }

  .footer-links-row {
    flex-direction: column;
    gap: 14px;
    width: 100%;
  }

  .footer-link-item a {
    width: 100%;
    text-align: center;
  }
}


/* SEO 语义化增强：参数对比表格 (Google Featured Snippets 友好) */
.specs-table-wrap {
  width: 100%;
  overflow-x: auto;
  margin-top: 28px;
  background: #FFF;
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-squish);
  padding: 16px;
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.98rem;
  color: var(--ink-brown);
}

.specs-table caption {
  font-size: 1.25rem;
  font-weight: 700;
  padding: 12px 8px 16px;
  text-align: left;
  color: var(--accent-orange);
}

.specs-table th, 
.specs-table td {
  padding: 14px 16px;
  border-bottom: 2px dashed #EADECE;
}

.specs-table th {
  background: #FFF8EB;
  font-weight: 700;
  font-size: 1.02rem;
  white-space: nowrap;
}

.specs-table tbody tr:hover {
  background: #FFFDF7;
}

.specs-table tbody tr:last-child td {
  border-bottom: none;
}

/* 面包屑导航样式 (Breadcrumb Navigation) */
.breadcrumb-nav {
  margin-bottom: 18px;
  font-size: 0.92rem;
  color: var(--ink-light);
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  list-style: none;
  gap: 8px;
}

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

.breadcrumb-item a:hover {
  color: var(--accent-orange);
  text-decoration: underline;
}

.breadcrumb-separator {
  color: #B59E8C;
  user-select: none;
}

/* 资讯目录导航 (TOC) */
.toc-box {
  background: #FFFDF8;
  border: var(--border-thick);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-squish);
  margin-bottom: 35px;
}

.toc-title {
  font-size: 1.3rem;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-brown);
}

.toc-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 10px 18px;
  list-style: none;
}

.toc-list li a {
  color: var(--ink-brown);
  text-decoration: none;
  font-size: 0.98rem;
  transition: color 0.15s;
  display: inline-block;
}

.toc-list li a:hover {
  color: var(--accent-orange);
  transform: translateX(4px);
}