@charset "UTF-8";
/* ==========================================================================
   飞鸟云 - 轻量级云平台原生样式表
   设计风格：晨光、乐观、温度
   色彩：暖纸色(#FAF6F0)、卡片表面(#FFFDF8)、正文墨色(#221B14)、
         次要文字暖灰(#8A7B68)、主色日出焦橙(#E8590C)、浅沙色(#F0E4D3)
   纯平涂色块，无渐变，1px暖墨描边，圆角14px
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=Instrument+Sans:wght@400;500;600&family=Noto+Sans+SC:wght@400;500;700&family=Sora:wght@600;700;800&display=swap');

:root {
  --bg-paper: #FAF6F0;
  --surface-card: #FFFDF8;
  --text-ink: #221B14;
  --text-muted: #8A7B68;
  --primary-orange: #E8590C;
  --primary-hover: #D14A05;
  --sand-accent: #F0E4D3;
  --sand-light: #F7EFE4;
  --border-ink: rgba(34, 27, 20, 0.12);
  --border-strong: rgba(34, 27, 20, 0.22);
  --radius-default: 14px;
  --radius-small: 8px;
  --radius-full: 9999px;
  --font-heading: 'Sora', 'Noto Sans SC', sans-serif;
  --font-body: 'Instrument Sans', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --container-max: 1160px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--bg-paper);
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-paper);
  color: var(--text-ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

/* 容器规范 */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* 导航栏 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-paper);
  border-bottom: 1px solid var(--border-ink);
  padding: 18px 0;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-ink);
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background-color: var(--primary-orange);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
}

.nav-links a:hover {
  color: var(--primary-orange);
}

.nav-links a.active {
  color: var(--primary-orange);
  font-weight: 600;
}

.nav-links a.news-pill {
  background-color: var(--sand-accent);
  color: var(--text-ink);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-weight: 600;
  border: 1px solid var(--border-ink);
}

.nav-links a.news-pill:hover {
  background-color: var(--primary-orange);
  color: #FFFFFF;
  border-color: var(--primary-orange);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* 按钮规范 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: var(--radius-default);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--primary-orange);
  color: #FFFFFF;
  border-color: var(--primary-orange);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #FFFFFF;
}

.btn-large {
  padding: 16px 36px;
  font-size: 1.1rem;
}

.btn-secondary {
  background-color: var(--surface-card);
  color: var(--text-ink);
  border-color: var(--border-ink);
}

.btn-secondary:hover {
  background-color: var(--sand-accent);
  border-color: var(--border-strong);
  color: var(--text-ink);
}

/* 主视觉区 Hero */
.hero-section {
  padding: 80px 0 60px 0;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--sand-accent);
  border: 1px solid var(--border-ink);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-ink);
  margin-bottom: 24px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.4rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-ink);
  max-width: 960px;
  margin: 0 auto 24px auto;
}

.hero-lead {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 760px;
  margin: 0 auto 36px auto;
  line-height: 1.6;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

/* 纯色数据徽章区 */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 40px;
  max-width: 1040px;
  margin-left: auto;
  margin-right: auto;
}

.metric-card {
  background-color: var(--surface-card);
  border: 1px solid var(--border-ink);
  border-radius: var(--radius-default);
  padding: 24px 20px;
  text-align: left;
}

.metric-num {
  font-family: var(--font-mono);
  font-size: 1.85rem;
  font-weight: 600;
  color: var(--primary-orange);
  line-height: 1.1;
  margin-bottom: 6px;
}

.metric-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-ink);
  margin-bottom: 4px;
}

.metric-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* 通用区块排版 */
.section {
  padding: 90px 0;
}

.section-alt {
  background-color: var(--surface-card);
  border-top: 1px solid var(--border-ink);
  border-bottom: 1px solid var(--border-ink);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 54px auto;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--primary-orange);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-ink);
  margin-bottom: 16px;
  line-height: 1.25;
}

.section-sub {
  font-size: 1.08rem;
  color: var(--text-muted);
}

/* 核心优势卡片（3个图文卡片） */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background-color: var(--surface-card);
  border: 1px solid var(--border-ink);
  border-radius: var(--radius-default);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
}

.feature-icon-wrap {
  width: 52px;
  height: 52px;
  background-color: var(--sand-accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-orange);
  margin-bottom: 24px;
}

.feature-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text-ink);
}

.feature-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 20px;
}

.feature-list {
  list-style: none;
  margin-top: auto;
  border-top: 1px solid var(--border-ink);
  padding-top: 16px;
}

.feature-list li {
  font-size: 0.88rem;
  color: var(--text-ink);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.feature-list li svg {
  color: var(--primary-orange);
  flex-shrink: 0;
}

/* 流媒体与 AI 支持图卡 */
.support-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.support-card {
  background-color: var(--bg-paper);
  border: 1px solid var(--border-ink);
  border-radius: var(--radius-default);
  padding: 36px 32px;
}

.support-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}

.support-icon {
  width: 44px;
  height: 44px;
  background-color: var(--sand-accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-orange);
}

.support-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-ink);
}

.support-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.6;
}

.service-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.service-pill {
  background-color: var(--surface-card);
  border: 1px solid var(--border-ink);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-ink);
  display: flex;
  align-items: center;
  gap: 8px;
}

.service-pill .status-dot {
  width: 8px;
  height: 8px;
  background-color: #2F9E44;
  border-radius: 50%;
}

/* 价格对比表 */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  background-color: var(--surface-card);
  border: 1px solid var(--border-ink);
  border-radius: var(--radius-default);
  padding: 40px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-card.featured {
  border: 2px solid var(--primary-orange);
  background-color: var(--surface-card);
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--primary-orange);
  color: #FFFFFF;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  letter-spacing: 0.04em;
}

.pricing-name {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-ink);
  margin-bottom: 8px;
}

.pricing-intro {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.pricing-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 28px;
}

.pricing-currency {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-ink);
}

.pricing-amount {
  font-family: var(--font-mono);
  font-size: 2.8rem;
  font-weight: 600;
  color: var(--text-ink);
  line-height: 1;
}

.pricing-period {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.pricing-features {
  list-style: none;
  border-top: 1px solid var(--border-ink);
  padding-top: 24px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-features li {
  font-size: 0.92rem;
  color: var(--text-ink);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.pricing-features li svg {
  color: var(--primary-orange);
  flex-shrink: 0;
}

.pricing-card .btn {
  width: 100%;
}

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

.review-card {
  background-color: var(--surface-card);
  border: 1px solid var(--border-ink);
  border-radius: var(--radius-default);
  padding: 30px;
  display: flex;
  flex-direction: column;
}

.review-stars {
  display: flex;
  gap: 4px;
  color: #F59F00;
  margin-bottom: 16px;
}

.review-quote {
  font-size: 0.95rem;
  color: var(--text-ink);
  line-height: 1.65;
  margin-bottom: 24px;
  flex-grow: 1;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--border-ink);
  padding-top: 16px;
}

.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--sand-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--primary-orange);
  font-size: 0.95rem;
}

.review-meta {
  line-height: 1.3;
}

.review-name {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--text-ink);
}

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

/* FAQ 常见问题 */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: var(--surface-card);
  border: 1px solid var(--border-ink);
  border-radius: var(--radius-default);
  padding: 24px 28px;
}

.faq-question {
  font-family: var(--font-heading);
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--text-ink);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.faq-question svg {
  color: var(--primary-orange);
  flex-shrink: 0;
}

.faq-answer {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
  padding-left: 28px;
}

/* 页脚规范：严格只保留四个标题，在新页面打开 */
.site-footer {
  background-color: var(--bg-paper);
  border-top: 1px solid var(--border-ink);
  padding: 60px 0 40px 0;
}

.footer-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.footer-nav a {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-ink);
  padding: 8px 16px;
  border-radius: var(--radius-small);
  border: 1px solid transparent;
}

.footer-nav a:hover {
  color: var(--primary-orange);
  background-color: var(--sand-accent);
  border-color: var(--border-ink);
}

.footer-copyright {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-ink);
  padding-top: 24px;
}

/* 内页与SEO文章排版规范 */
.article-page {
  padding: 50px 0 90px 0;
}

.article-header {
  margin-bottom: 40px;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--border-ink);
}

.article-breadcrumb {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.article-breadcrumb a:hover {
  color: var(--primary-orange);
}

.article-main-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-ink);
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.article-content {
  background-color: var(--surface-card);
  border: 1px solid var(--border-ink);
  border-radius: var(--radius-default);
  padding: 48px;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-ink);
}

.article-content h2 {
  font-family: var(--font-heading);
  font-size: 1.65rem;
  font-weight: 700;
  margin: 40px 0 16px 0;
  color: var(--text-ink);
  border-left: 4px solid var(--primary-orange);
  padding-left: 12px;
}

.article-content h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  margin: 28px 0 12px 0;
  color: var(--text-ink);
}

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

.article-content ul, .article-content ol {
  margin: 0 0 24px 28px;
}

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

.article-content a {
  color: var(--primary-orange);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 600;
}

.article-content a:hover {
  color: var(--primary-hover);
}

.article-content blockquote {
  background-color: var(--sand-light);
  border-left: 4px solid var(--primary-orange);
  padding: 16px 20px;
  margin: 24px 0;
  border-radius: 0 var(--radius-small) var(--radius-small) 0;
  font-style: normal;
  color: var(--text-ink);
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 0.95rem;
}

.article-content th, .article-content td {
  border: 1px solid var(--border-ink);
  padding: 12px 16px;
  text-align: left;
}

.article-content th {
  background-color: var(--sand-accent);
  font-weight: 700;
  font-family: var(--font-heading);
}

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

.article-card {
  background-color: var(--surface-card);
  border: 1px solid var(--border-ink);
  border-radius: var(--radius-default);
  padding: 30px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.article-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
}

.article-card-tag {
  display: inline-block;
  background-color: var(--sand-accent);
  color: var(--primary-orange);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
  align-self: flex-start;
}

.article-card-title {
  font-family: var(--font-heading);
  font-size: 1.22rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-ink);
  margin-bottom: 12px;
}

.article-card-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.article-card-link {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--primary-orange);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* 响应式媒体查询（手机端完美单栏） */
@media (max-width: 992px) {
  .hero-title {
    font-size: 2.6rem;
  }
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
  }
  .support-grid {
    grid-template-columns: 1fr;
  }
  .article-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .site-header {
    padding: 14px 0;
  }
  .nav-wrapper {
    flex-direction: column;
    align-items: flex-start;
  }
  .nav-links {
    flex-wrap: wrap;
    gap: 12px 16px;
    width: 100%;
    margin-top: 10px;
  }
  .nav-actions {
    width: 100%;
    margin-top: 12px;
  }
  .nav-actions .btn {
    width: 100%;
  }
  .hero-section {
    padding: 50px 0 40px 0;
  }
  .hero-title {
    font-size: 2rem;
  }
  .hero-lead {
    font-size: 1.05rem;
  }
  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }
  .hero-cta-group .btn {
    width: 100%;
  }
  .metrics-grid {
    grid-template-columns: 1fr;
  }
  .section {
    padding: 60px 0;
  }
  .section-title {
    font-size: 1.8rem;
  }
  .article-content {
    padding: 24px 18px;
  }
  .article-main-title {
    font-size: 1.75rem;
  }
  .footer-nav {
    flex-direction: column;
    gap: 16px;
  }
}