/* ==========================================================================
   猫猫云 (maomaoyun.site) - 品牌官方视觉样式系统
   色彩体系: 奶油白 / 淡紫 / 蜜桃粉 / 薄荷绿 / 石板暗灰
   风格定位: 轻量 SaaS 式品牌官网落地页
   ========================================================================== */

:root {
  /* 品牌核心色彩 */
  --color-bg: #FAF8F5;
  --color-bg-card: #FFFFFF;
  --color-bg-alt: #F4EFEA;
  
  --color-lavender: #7C5CFC;
  --color-lavender-dark: #6340EB;
  --color-lavender-light: #F0EDFF;
  
  --color-peach: #FF758F;
  --color-peach-dark: #E65A75;
  --color-peach-light: #FFF0F3;
  
  --color-mint: #10B981;
  --color-mint-dark: #059669;
  --color-mint-light: #ECFDF5;

  /* 文字与边框 */
  --color-text-main: #1E293B;
  --color-text-muted: #64748B;
  --color-text-light: #94A3B8;
  --color-border: #E8E2D9;
  --color-border-focus: #7C5CFC;

  /* 阴影体系 */
  --shadow-sm: 0 2px 8px rgba(30, 41, 59, 0.04);
  --shadow-md: 0 8px 24px rgba(124, 92, 252, 0.08);
  --shadow-lg: 0 16px 36px rgba(124, 92, 252, 0.12);
  --shadow-hover: 0 12px 30px rgba(124, 92, 252, 0.15);

  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 9999px;

  /* 容器最大宽度 */
  --container-max: 1200px;
  --container-narrow: 860px;
}

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

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--color-text-main);
  background-color: var(--color-bg);
  line-height: 1.65;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background: radial-gradient(circle at 10% 20%, rgba(240, 237, 255, 0.5) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, rgba(255, 240, 243, 0.5) 0%, transparent 40%),
              var(--color-bg);
}

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

a {
  color: var(--color-lavender);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: var(--color-lavender-dark);
}

/* 容器 */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.container-narrow {
  max-width: var(--container-narrow);
}

/* 导航栏 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(250, 248, 245, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: all 0.3s ease;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo img {
  height: 44px;
  width: auto;
}

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

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-main);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-lavender);
  background-color: var(--color-lavender-light);
}

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

/* 按钮规范 - 符合只能指向特定URL与文本的规则 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-lavender) 0%, var(--color-peach) 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(124, 92, 252, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-lavender-dark) 0%, var(--color-peach-dark) 100%);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(124, 92, 252, 0.4);
}

.btn-secondary {
  background-color: #FFFFFF;
  color: var(--color-text-main);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  color: var(--color-lavender);
  border-color: var(--color-lavender);
  background-color: var(--color-lavender-light);
}

.btn-outline {
  border: 1.5px solid var(--color-lavender);
  color: var(--color-lavender);
  background: transparent;
}

.btn-outline:hover {
  background-color: var(--color-lavender);
  color: #FFFFFF;
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  color: var(--color-text-main);
  border-radius: var(--radius-sm);
}

/* Hero 区域 */
.hero-section {
  padding: 60px 0 50px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-lavender-light);
  color: var(--color-lavender);
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
  border: 1px solid rgba(124, 92, 252, 0.15);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-mint);
  border-radius: 50%;
  display: inline-block;
}

.hero-title {
  font-size: 44px;
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 20px;
  color: var(--color-text-main);
}

.hero-title .text-gradient {
  background: linear-gradient(135deg, var(--color-lavender) 0%, var(--color-peach) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 18px;
  line-height: 1.6;
  color: var(--color-text-muted);
  max-width: 680px;
  margin: 0 auto 32px;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

/* 提示通知条 (强调核实声明与真实性) */
.notice-box {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-lavender);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 32px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  text-align: left;
  box-shadow: var(--shadow-sm);
}

.notice-box.notice-warn {
  border-left-color: var(--color-peach);
  background-color: var(--color-peach-light);
}

.notice-icon {
  font-size: 20px;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}

.notice-content h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 4px;
}

.notice-content p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* 卡片网格与轻量 SaaS 卡片 */
.section {
  padding: 50px 0;
}

.section-alt {
  background-color: rgba(255, 255, 255, 0.7);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-tag {
  display: inline-block;
  color: var(--color-lavender);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  margin-bottom: 8px;
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 12px;
}

.section-desc {
  font-size: 16px;
  color: var(--color-text-muted);
  max-width: 620px;
  margin: 0 auto;
}

.grid {
  display: grid;
  gap: 24px;
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* 核心特性卡片 */
.feature-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-lavender);
  box-shadow: var(--shadow-md);
}

.feature-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-lavender-light);
  color: var(--color-lavender);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text-main);
}

.feature-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* 套餐展示卡片 (根据规则处理已核实与候选套餐) */
.plan-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 32px 26px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.plan-card.featured {
  border: 2px solid var(--color-lavender);
  box-shadow: var(--shadow-lg);
}

.plan-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--color-lavender), var(--color-peach));
  color: #FFFFFF;
  padding: 4px 14px;
  font-size: 12px;
  font-weight: 700;
  border-radius: var(--radius-pill);
}

.plan-status-pill {
  display: inline-block;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
  align-self: flex-start;
}

.plan-status-unverified {
  background-color: #FEF3C7;
  color: #92400E;
}

.plan-status-verified {
  background-color: var(--color-mint-light);
  color: var(--color-mint-dark);
}

.plan-header h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 6px;
}

.plan-header p {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.plan-price {
  font-size: 34px;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 4px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.plan-price .currency {
  font-size: 20px;
  font-weight: 600;
}

.plan-price .period {
  font-size: 14px;
  font-weight: 400;
  color: var(--color-text-muted);
}

.plan-meta {
  font-size: 12px;
  color: var(--color-peach-dark);
  margin-bottom: 24px;
  line-height: 1.4;
}

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

.plan-features li {
  font-size: 14px;
  color: var(--color-text-main);
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px dashed var(--color-border);
}

.plan-features li:last-child {
  border-bottom: none;
}

.plan-features .check {
  color: var(--color-mint);
  font-weight: bold;
}

.plan-footer {
  margin-top: auto;
}

.plan-footer .btn {
  width: 100%;
}

/* 表格样式 (自适应防溢出) */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 24px 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background-color: #FFFFFF;
}

.table-custom {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
  min-width: 580px;
}

.table-custom th {
  background-color: var(--color-bg-alt);
  color: var(--color-text-main);
  font-weight: 700;
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border);
}

.table-custom td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-main);
}

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

.table-custom tr:hover td {
  background-color: rgba(240, 237, 255, 0.4);
}

/* 用户反馈区域 ("提交使用反馈" - 严禁编造评价) */
.feedback-section {
  padding: 50px 0;
}

.feedback-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  box-shadow: var(--shadow-sm);
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-main);
  margin-bottom: 6px;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: #FFFFFF;
  color: var(--color-text-main);
  outline: none;
  font-family: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(124, 92, 252, 0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 110px;
}

.feedback-status {
  display: none;
  padding: 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  margin-top: 14px;
}

.feedback-status.success {
  display: block;
  background-color: var(--color-mint-light);
  color: var(--color-mint-dark);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

/* FAQ 折叠区域 */
.faq-section {
  padding: 50px 0;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.2s ease;
}

.faq-item[open] {
  border-color: var(--color-lavender);
  box-shadow: var(--shadow-sm);
}

.faq-summary {
  padding: 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-main);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  list-style: none;
}

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

.faq-summary::after {
  content: "+";
  font-size: 20px;
  font-weight: 400;
  color: var(--color-lavender);
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-summary::after {
  content: "−";
  transform: rotate(180deg);
}

.faq-content {
  padding: 0 22px 20px;
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
  border-top: 1px solid rgba(232, 226, 217, 0.5);
  padding-top: 14px;
}

/* 文章列表与文章详情样式 */
.article-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}

.article-card:hover {
  border-color: var(--color-lavender);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.article-meta {
  font-size: 13px;
  color: var(--color-text-light);
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
}

.article-title {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 10px;
}

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

.article-title a:hover {
  color: var(--color-lavender);
}

.article-excerpt {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.article-link {
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-lavender);
}

/* 文章正文页面 */
.article-page {
  padding: 40px 0 60px;
}

.article-header {
  margin-bottom: 32px;
  text-align: left;
}

.article-header h1 {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--color-text-main);
  margin-bottom: 16px;
}

.article-body {
  font-size: 16px;
  line-height: 1.85;
  color: #334155;
}

.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text-main);
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.article-body h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--color-text-main);
  margin: 28px 0 12px;
}

.article-body p {
  margin-bottom: 18px;
}

.article-body ul, .article-body ol {
  margin: 16px 0 20px 24px;
}

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

.article-body blockquote {
  border-left: 4px solid var(--color-lavender);
  background-color: var(--color-lavender-light);
  padding: 14px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 20px 0;
  font-style: normal;
  color: #4B5563;
}

.article-body .callout-box {
  background-color: var(--color-mint-light);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 18px 20px;
  border-radius: var(--radius-md);
  margin: 24px 0;
}

.article-body .callout-box h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-mint-dark);
  margin-bottom: 6px;
}

.related-articles {
  margin-top: 50px;
  padding-top: 30px;
  border-top: 1px solid var(--color-border);
}

.related-articles h3 {
  font-size: 20px;
  margin-bottom: 18px;
}

.related-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.related-list li a {
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 面包屑导航 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--color-text-muted);
}

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

.breadcrumb-separator {
  color: var(--color-border);
}

/* 页脚 */
.site-footer {
  margin-top: auto;
  background-color: #FFFFFF;
  border-top: 1px solid var(--color-border);
  padding: 48px 0 32px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 36px;
  margin-bottom: 36px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-top: 12px;
  max-width: 320px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  color: var(--color-text-muted);
}

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

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-disclaimer {
  font-size: 12px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-top: 12px;
  width: 100%;
}

/* 响应式断点适配 (严禁横向溢出) */
@media (max-width: 992px) {
  .hero-title {
    font-size: 36px;
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 64px;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background-color: #FFFFFF;
    flex-direction: column;
    padding: 20px;
    gap: 14px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }
  .nav-links.open {
    display: flex;
  }
  .menu-toggle {
    display: block;
  }
  .hero-title {
    font-size: 28px;
    letter-spacing: -0.5px;
  }
  .hero-subtitle {
    font-size: 16px;
  }
  .grid-3, .grid-2, .grid-4 {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .article-header h1 {
    font-size: 26px;
  }
  .btn {
    width: 100%;
    text-align: center;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }
}