/* ==========================================================================
   XFLTD (养鸡场) - 日式极简禅意风格样式表
   配色方案:
     - 背景色: 米白 #F6F3EA
     - 文字墨色: #2B2A24
     - 次要弱化文字: #6F6B5F
     - 唯一强调色 (苔绿): #7C8B6F
     - 发丝线 (沙色): #B7AE99
     - 朱红点缀 (Logo): #D34B36
   ========================================================================== */

:root {
  --bg-primary: #F6F3EA;
  --bg-card: #FFFFFF;
  --bg-muted: #EFECE3;
  --text-main: #2B2A24;
  --text-muted: #6F6B5F;
  --border-line: #B7AE99;
  --color-accent: #7C8B6F;
  --color-accent-dark: #66735a;
  --color-vermilion: #D34B36;
  --font-serif: 'DM Serif Display', serif;
  --font-sans: 'Zen Kaku Gothic New', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --container-width: 1120px;
  --transition-slow: 0.4s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--bg-primary);
  color: var(--text-main);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.85;
  color: var(--text-main);
  background-color: var(--bg-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* 排版与标题 */
h1, h2, h3, h4 {
  color: var(--text-main);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: 0.02em;
}

.serif-title {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0.03em;
}

p {
  color: var(--text-main);
  margin-bottom: 1.25rem;
}

a {
  color: var(--text-main);
  text-decoration: none;
  transition: color var(--transition-slow), border-color var(--transition-slow);
}

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

/* 按钮规范 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.8rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  border-radius: 9999px;
  cursor: pointer;
  transition: all var(--transition-slow);
  text-decoration: none;
  border: 1px solid transparent;
  line-height: 1;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #F6F3EA;
  border: 1px solid var(--color-accent);
}

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

.btn-outline {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-line);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: rgba(124, 139, 111, 0.06);
}

.btn-capsule {
  background-color: var(--color-accent);
  color: #F6F3EA;
  padding: 0.45rem 1.2rem;
  font-size: 0.85rem;
  border-radius: 9999px;
}

.btn-capsule:hover {
  background-color: var(--color-accent-dark);
  color: #FFFFFF;
}

.btn-sm {
  padding: 0.5rem 1.2rem;
  font-size: 0.85rem;
}

/* 吸顶极简导航 */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(246, 243, 234, 0.94);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-line);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.logo-text {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  letter-spacing: 0.25em;
  color: var(--text-main);
  font-weight: 600;
}

.logo-tag {
  font-size: 0.75rem;
  color: var(--text-muted);
  border-left: 1px solid var(--border-line);
  padding-left: 0.6rem;
  letter-spacing: 0.1em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.8rem;
}

.nav-link {
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  color: var(--text-main);
  position: relative;
  padding: 0.2rem 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 1px;
  background-color: var(--color-accent);
  transition: width var(--transition-slow);
}

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

/* 通用容器 */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
  position: relative;
}

.section-border-top {
  border-top: 1px solid var(--border-line);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem;
}

.section-subtitle {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: 0.6rem;
}

.section-title {
  font-size: 2.1rem;
  line-height: 1.3;
  margin-bottom: 0.8rem;
}

.section-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ==========================================================================
   Hero 主视觉区
   ========================================================================== */
.hero {
  padding: 5.5rem 0 4.5rem;
  text-align: center;
  position: relative;
}

.hero-vertical-tag {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.3em;
  color: var(--color-accent);
  border: 1px solid var(--border-line);
  padding: 0.3rem 1.2rem;
  border-radius: 9999px;
  margin-bottom: 1.8rem;
  background-color: rgba(255, 255, 255, 0.4);
}

.hero-title {
  font-size: 3.2rem;
  line-height: 1.2;
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

.hero-motto {
  font-size: 1.45rem;
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.hero-subtext {
  max-width: 680px;
  margin: 0 auto 2.4rem;
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

/* 等宽价格滚动小栏 */
.hero-ticker-wrap {
  max-width: 780px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  border-top: 1px solid var(--border-line);
  border-bottom: 1px solid var(--border-line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--text-muted);
  background-color: rgba(255, 255, 255, 0.35);
}

.ticker-item {
  display: flex;
  gap: 0.5rem;
}

.ticker-dot {
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
  border-radius: 50%;
  display: inline-block;
  margin-top: 6px;
}

/* ==========================================================================
   横向一日时间轴 / 哲学故事区
   ========================================================================== */
.timeline-section {
  background-color: rgba(255, 255, 255, 0.25);
}

.timeline-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.timeline-card {
  padding: 1.8rem 1.4rem;
  border: 1px solid var(--border-line);
  background-color: var(--bg-primary);
  position: relative;
  transition: transform var(--transition-slow), border-color var(--transition-slow);
}

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

.timeline-time {
  font-family: monospace;
  font-size: 0.8rem;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 0.6rem;
}

.timeline-title {
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
  font-weight: 500;
}

.timeline-text {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ==========================================================================
   产品核心优势：3个图文卡片 (编辑式排版)
   ========================================================================== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  border: 1px solid var(--border-line);
  background-color: var(--bg-primary);
  padding: 2.2rem 1.8rem;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-slow), border-color var(--transition-slow);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
}

.feature-number {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.8rem;
  color: var(--color-accent);
  margin-bottom: 1rem;
  display: block;
}

.feature-visual {
  width: 100%;
  height: 130px;
  margin-bottom: 1.4rem;
  border-bottom: 1px solid var(--border-line);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.4);
}

.feature-title {
  font-size: 1.3rem;
  margin-bottom: 0.8rem;
}

.feature-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 0;
}

/* ==========================================================================
   流媒体与 AI 支持图卡 (Lookbook 拼贴画报风格)
   ========================================================================== */
.media-lookbook {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2rem;
}

.lookbook-main {
  border: 1px solid var(--border-line);
  padding: 2.5rem;
  background-color: var(--bg-primary);
}

.lookbook-side {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.lookbook-card {
  border: 1px solid var(--border-line);
  padding: 2rem;
  background-color: var(--bg-primary);
  flex: 1;
}

.lookbook-tag {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  display: block;
}

.media-tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.2rem;
}

.media-badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  border: 1px solid var(--border-line);
  border-radius: 9999px;
  background-color: rgba(255, 255, 255, 0.6);
  color: var(--text-main);
}

/* ==========================================================================
   套餐价格对比表
   ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
}

.pricing-card {
  border: 1px solid var(--border-line);
  background-color: var(--bg-primary);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform var(--transition-slow), border-color var(--transition-slow);
}

.pricing-card.featured {
  border: 2px solid var(--color-accent);
  background-color: #FAF8F2;
}

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

.pricing-badge {
  position: absolute;
  top: -12px;
  right: 24px;
  background-color: var(--color-accent);
  color: #FFFFFF;
  font-size: 0.75rem;
  padding: 0.2rem 0.8rem;
  border-radius: 9999px;
  letter-spacing: 0.1em;
}

.pricing-name {
  font-size: 1.4rem;
  margin-bottom: 0.4rem;
}

.pricing-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.pricing-price {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  color: var(--text-main);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.pricing-currency {
  font-size: 1.4rem;
  margin-right: 0.2rem;
}

.pricing-period {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: var(--font-sans);
}

.pricing-divider {
  height: 1px;
  background-color: var(--border-line);
  margin: 1.8rem 0;
  width: 100%;
}

.pricing-features {
  list-style: none;
  margin-bottom: 2.2rem;
  flex-grow: 1;
}

.pricing-features li {
  font-size: 0.9rem;
  color: var(--text-main);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.pricing-features li::before {
  content: "—";
  color: var(--color-accent);
  font-weight: bold;
}

/* ==========================================================================
   用户评价模块
   ========================================================================== */
.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
}

.review-card {
  border: 1px solid var(--border-line);
  padding: 2rem 1.6rem;
  background-color: rgba(255, 255, 255, 0.4);
  display: flex;
  flex-direction: column;
}

.review-quote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.8rem;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.review-text {
  font-size: 0.92rem;
  color: var(--text-main);
  line-height: 1.8;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.review-author {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-line);
  padding-top: 0.85rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.review-rating {
  color: var(--color-accent);
  letter-spacing: 2px;
}

/* ==========================================================================
   常见问题解答 (FAQ)
   ========================================================================== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border-line);
  padding: 1.5rem 0;
}

.faq-question {
  font-size: 1.15rem;
  font-weight: 500;
  margin-bottom: 0.6rem;
  color: var(--text-main);
}

.faq-answer {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.85;
  margin-bottom: 0;
}

/* ==========================================================================
   宣言式大字版块 (Manifesto)
   ========================================================================== */
.manifesto-section {
  text-align: center;
  padding: 6rem 0;
  background-color: rgba(239, 236, 227, 0.6);
  border-top: 1px solid var(--border-line);
  border-bottom: 1px solid var(--border-line);
}

.manifesto-lead {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-style: italic;
  letter-spacing: 0.05em;
  line-height: 1.35;
  margin-bottom: 1.5rem;
}

.manifesto-text {
  max-width: 640px;
  margin: 0 auto 2.5rem;
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 2;
}

/* ==========================================================================
   超大空心字标页脚
   ========================================================================== */
.footer {
  margin-top: auto;
  border-top: 1px solid var(--border-line);
  padding: 4.5rem 0 2.5rem;
  background-color: var(--bg-primary);
  text-align: center;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.footer-giant-brand {
  font-family: var(--font-serif);
  font-size: clamp(3.5rem, 12vw, 8rem);
  letter-spacing: 0.25em;
  color: transparent;
  -webkit-text-stroke: 1px var(--border-line);
  text-transform: uppercase;
  user-select: none;
  line-height: 1;
  margin-bottom: 2rem;
  transition: -webkit-text-stroke var(--transition-slow);
}

.footer-giant-brand:hover {
  -webkit-text-stroke: 1px var(--color-accent);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 0.92rem;
  letter-spacing: 0.1em;
  color: var(--text-main);
  position: relative;
  padding-bottom: 0.25rem;
}

.footer-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 1px;
  background-color: var(--color-accent);
  transition: width var(--transition-slow);
}

.footer-links a:hover::after {
  width: 100%;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  margin-bottom: 0;
}

/* ==========================================================================
   文章与内页排版通用样式 (About, Terms, Privacy, News, Sitemap)
   ========================================================================== */
.page-container {
  max-width: 860px;
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
  flex-grow: 1;
}

.article-header {
  border-bottom: 1px solid var(--border-line);
  padding-bottom: 2rem;
  margin-bottom: 2.5rem;
}

.article-tag {
  display: inline-block;
  font-size: 0.78rem;
  color: var(--color-accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.page-title {
  font-size: 2.4rem;
  line-height: 1.3;
  margin-bottom: 0.8rem;
}

.article-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

.article-body h2 {
  font-size: 1.45rem;
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-line);
}

.article-body h3 {
  font-size: 1.18rem;
  margin: 1.8rem 0 0.8rem;
}

.article-body p {
  font-size: 0.98rem;
  line-height: 1.9;
  margin-bottom: 1.25rem;
}

.article-body ul, .article-body ol {
  margin: 1rem 0 1.5rem 1.8rem;
}

.article-body li {
  margin-bottom: 0.5rem;
  font-size: 0.96rem;
  line-height: 1.8;
}

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

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

.callout-box {
  background-color: rgba(255, 255, 255, 0.5);
  border-left: 3px solid var(--color-accent);
  padding: 1.2rem 1.5rem;
  margin: 1.8rem 0;
  font-size: 0.92rem;
}

.news-card {
  border: 1px solid var(--border-line);
  padding: 2.2rem;
  margin-bottom: 2.5rem;
  background-color: var(--bg-primary);
  transition: transform var(--transition-slow), border-color var(--transition-slow);
}

.news-card:hover {
  border-color: var(--color-accent);
}

.news-card h2 {
  border-bottom: none;
  margin-top: 0.2rem;
  margin-bottom: 0.8rem;
}

/* ==========================================================================
   响应式媒体查询 (@media) - 确保手机端单栏完美适配，点击手感优秀
   ========================================================================== */
@media (max-width: 900px) {
  .timeline-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .media-lookbook {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .review-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .header-inner {
    padding: 0.8rem 1rem;
    flex-wrap: wrap;
    gap: 0.75rem;
  }
  .nav {
    gap: 0.9rem;
    flex-wrap: wrap;
    width: 100%;
    justify-content: flex-start;
  }
  .nav-link {
    font-size: 0.82rem;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-motto {
    font-size: 1.15rem;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
    padding: 0.9rem 1.5rem;
  }
  .hero-ticker-wrap {
    flex-direction: column;
    gap: 0.6rem;
    text-align: center;
  }
  .timeline-grid {
    grid-template-columns: 1fr;
  }
  .section {
    padding: 3.5rem 0;
  }
  .manifesto-lead {
    font-size: 2rem;
  }
  .footer-links {
    gap: 1.2rem;
  }
  .btn {
    min-height: 44px; /* 移动端拇指友好区域 */
  }
}