/*
   FidelityAI - BLUE & WHITE DESIGN SYSTEM 2026
   ============================================= */

/* ── Google Fonts: Inter + Noto Sans SC ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Noto+Sans+SC:wght@300;400;500;700;900&display=swap');

:root {
  --cinema-bg: #060d1a;
  --cinema-text: #ffffff;
  --cinema-accent: #3b82f6;
  --cinema-accent-alt: #10b981;
  --cinema-gradient: linear-gradient(135deg, #1d4ed8 0%, #3b82f6 100%);
  --cinema-glass: rgba(59, 130, 246, 0.05);
  --cinema-border: rgba(59, 130, 246, 0.18);

  /* 字体系统 */
  --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont,
    'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-display: 'Inter', 'Noto Sans SC', sans-serif;

  /* 字号阶梯 */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  2rem;
  --text-4xl:  2.75rem;

  /* 行高 */
  --leading-tight:  1.25;
  --leading-normal: 1.7;
  --leading-loose:  1.9;
}

/* 基础重置 */
body {
  background-color: var(--cinema-bg) !important;
  color: var(--cinema-text) !important;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

#board, .board {
  max-width: 100% !important;
  padding: 0 !important;
  margin: 0 !important;
  background: transparent !important;
}

/* 彻底移除 Fluid 主题自带的 Banner 占位容器及周边空白 */
#banner {
  display: none !important;
}

#main, #main-container, .main-container, #body-wrap {
  padding-top: 0 !important;
  margin-top: 0 !important;
}

#board {
  margin-top: 80px !important;
  padding-top: 2rem !important;
  padding-bottom: 0 !important;
  box-shadow: none !important;
  border-radius: 0 !important;
  background: transparent !important;
}

.header-inner {
  height: auto !important;
  overflow: visible !important;
}

/* 只隐藏 banner 部分，保留导航 */
.header-inner .banner,
.header-inner #banner,
.header-inner .banner-text,
.header-inner .scroll-down-bar {
  display: none !important;
}

/* ── 导航栏（浮在 cinema-layout 之上）── */
#navbar {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  z-index: 1000 !important;
  min-height: 64px !important;
  background: rgba(6, 13, 26, 0.92) !important;
  backdrop-filter: blur(24px) !important;
  -webkit-backdrop-filter: blur(24px) !important;
  border-bottom: none !important;
  box-shadow: none !important;
  transition: background 0.3s ease;
  padding: 0 6% !important;
}

/* 桌面端：container 固定 64px 高，内容垂直居中 */
@media (min-width: 992px) {
  #navbar .container {
    max-width: 100% !important;
    padding: 0 !important;
    height: 64px !important;
    display: flex !important;
    align-items: center !important;
  }
}

/* 移动端：container 高度自适应，让折叠菜单能撑开 */
@media (max-width: 991px) {
  #navbar {
    padding: 0 4% !important;
  }
  #navbar .container {
    max-width: 100% !important;
    padding: 0 !important;
    min-height: 56px;
    flex-wrap: wrap;
  }
  #navbar .navbar-brand {
    height: 56px;
    display: flex;
    align-items: center;
  }
  #navbar #navbar-toggler-btn {
    height: 56px;
    display: flex;
    align-items: center;
  }
  /* 展开的菜单独占一行，样式正常流动 */
  #navbar .navbar-collapse {
    width: 100%;
    background: rgba(6, 13, 26, 0.98);
    border-top: 1px solid var(--cinema-border);
    padding: 0.5rem 0 1rem;
  }
  #navbar .navbar-nav {
    width: 100%;
  }
  #navbar .navbar-nav .nav-link {
    padding: 0.8rem 1rem !important;
    font-size: 0.95rem !important;
    color: rgba(255,255,255,0.65) !important;
    border-bottom: 1px solid rgba(255,255,255,0.05);
  }
  #navbar .navbar-nav .nav-item:last-child .nav-link {
    border-bottom: none;
  }
  .navbar-toggler {
    border-color: rgba(255,255,255,0.25) !important;
    padding: 0.3rem 0.6rem;
  }
  .navbar-toggler .animated-icon span {
    background-color: #fff;
  }
}

.navbar-brand {
  font-size: 1.1rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.12em !important;
  color: #fff !important;
  text-transform: uppercase;
  font-family: var(--font-display);
}

.navbar-nav .nav-link {
  font-size: 0.82rem !important;
  font-weight: 500 !important;
  letter-spacing: 0.06em !important;
  color: rgba(255, 255, 255, 0.45) !important;
  padding: 0.4rem 1.2rem !important;
  text-transform: uppercase;
  transition: color 0.2s ease;
}

.navbar-nav .nav-link:hover {
  color: rgba(255, 255, 255, 0.9) !important;
  text-shadow: none;
}

/* 隐藏导航栏图标 */
.navbar-nav .nav-link .iconfont {
  display: none !important;
}

/* 隐藏搜索和主题切换按钮 */
#navbar .navbar-search, #navbar .navbar-toggle-theme {
  opacity: 0.4;
  transition: opacity 0.2s;
}
#navbar .navbar-search:hover, #navbar .navbar-toggle-theme:hover {
  opacity: 1;
}


/* cinema-layout 覆盖整个视口，导航栏浮在上面 */
.cinema-layout {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow-y: auto;
  z-index: 100;
  background: #060d1a;
}

/* 01. CINEMA HERO */
.cinema-hero {
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: radial-gradient(ellipse at 60% 40%, rgba(29, 78, 216, 0.18) 0%, #060d1a 70%);
  position: relative;
  padding-top: 0;
}

.hero-content {
  position: relative;
  z-index: 10;
}

.hero-title {
  font-size: clamp(3rem, 10vw, 8rem) !important;
  font-weight: 900 !important;
  letter-spacing: -0.05em !important;
  line-height: 1 !important;
  margin: 0 !important;
  font-family: var(--font-display);
  background: linear-gradient(to bottom, #fff 40%, rgba(147, 197, 253, 0.5) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 40px rgba(59, 130, 246, 0.3));
}

.hero-subtitle {
  font-size: clamp(0.85rem, 1.8vw, 1.1rem);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-top: 1.5rem;
  margin-bottom: 3rem;
  max-width: 600px;
  line-height: 1.8;
}



.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 2rem;
  justify-content: center;
}

.btn-secondary-link {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.4) !important;
  text-decoration: none !important;
  letter-spacing: 0.05em;
  transition: color 0.2s ease;
}

.btn-secondary-link:hover {
  color: rgba(255, 255, 255, 0.8) !important;
}

.btn-main-glow {
  padding: 1.2rem 3.5rem;
  background: var(--cinema-gradient);
  color: #fff !important;
  font-weight: 800;
  border-radius: 100px;
  text-decoration: none !important;
  box-shadow: 0 0 30px rgba(59, 130, 246, 0.4);
  transition: all 0.3s ease;
}

.btn-main-glow:hover {
  transform: scale(1.1);
  box-shadow: 0 0 50px rgba(59, 130, 246, 0.6);
}

/* 02. CINEMA VISION */
.cinema-vision {
  padding: 20vh 10%;
  text-align: center;
}

.reveal-text {
  font-size: clamp(2rem, 5vw, 4rem) !important;
  font-weight: 800 !important;
  line-height: 1.2 !important;
  max-width: 1000px;
  margin: 0 auto 3rem !important;
}

.reveal-text span {
  background: var(--cinema-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.vision-desc {
  font-size: 1.25rem;
  color: rgba(255,255,255,0.5);
  max-width: 700px;
  margin: 0 auto;
}

/* 03. CAPABILITIES GRID */
.cinema-capabilities {
  padding: 10vh 5%;
}

.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.cap-item {
  background: var(--cinema-glass);
  border: 1px solid var(--cinema-border);
  border-radius: 40px;
  padding: 4rem;
  position: relative;
  overflow: hidden;
  transition: all 0.5s ease;
}

.cap-item:hover {
  border-color: rgba(59, 130, 246, 0.5);
  background: rgba(59, 130, 246, 0.08);
  transform: translateY(-10px);
}

.cap-item.large { grid-column: span 2; }
.cap-item.wide { grid-column: span 3; }

.cap-num {
  font-size: 1rem;
  color: var(--cinema-accent);
  font-weight: 800;
  display: block;
  margin-bottom: 2rem;
}

.cap-item h3 {
  font-size: 2rem !important;
  margin-bottom: 1rem !important;
  font-weight: 800 !important;
}

.cap-item p {
  color: rgba(255,255,255,0.6);
  font-size: 1.1rem;
}

/* 04. CINEMA GATEWAY */
.cinema-gateway {
  padding: 20vh 10%;
}

.gateway-card {
  background: linear-gradient(135deg, #0d1f3c 0%, #060d1a 100%);
  border: 1px solid var(--cinema-border);
  border-radius: 60px;
  padding: 8rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.gateway-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem) !important;
  font-weight: 900 !important;
  margin-bottom: 2rem !important;
}

.gateway-title span {
  color: var(--cinema-accent-alt);
}

.btn-super-portal {
  display: inline-flex;
  align-items: center;
  gap: 2rem;
  background: var(--cinema-gradient);
  padding: 1.5rem 4rem;
  border-radius: 100px;
  color: #fff !important;
  text-decoration: none !important;
  font-size: 1.5rem;
  font-weight: 800;
  transition: all 0.4s ease;
  box-shadow: 0 20px 40px rgba(59, 130, 246, 0.3);
}

.btn-super-portal:hover {
  transform: scale(1.05) translateY(-5px);
  box-shadow: 0 30px 60px rgba(59, 130, 246, 0.5);
}

/* ── 响应式适配 ── */

/* 平板及以下 (≤ 992px) */
@media (max-width: 992px) {
  .cap-grid { grid-template-columns: 1fr; }
  .cap-item.large, .cap-item.wide { grid-column: span 1; }
  #navbar { height: 64px !important; }

  .cinema-vision { padding: 12vh 6%; }
  .cinema-capabilities { padding: 8vh 4%; }
  .cinema-gateway { padding: 12vh 6%; }

  .gateway-card { padding: 5rem 3rem; border-radius: 40px; }
  .btn-super-portal { padding: 1.2rem 3rem; font-size: 1.2rem; }

  .cap-item { padding: 3rem; border-radius: 30px; }
  .cap-item h3 { font-size: 1.6rem !important; }
}

/* 手机端 (≤ 768px) */
@media (max-width: 768px) {
  /* 首页 Hero */
  .cinema-hero {
    padding: 0 6%;
    height: 100svh;
  }
  .hero-subtitle {
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    margin-bottom: 2.5rem;
    padding: 0 1rem;
  }
  .hero-cta-group {
    flex-direction: column;
    gap: 1.2rem;
  }
  .btn-main-glow {
    padding: 1rem 2.5rem;
    font-size: 0.95rem;
    width: 100%;
    text-align: center;
  }
  .btn-secondary-link {
    font-size: 0.85rem;
  }

  /* Vision */
  .cinema-vision {
    padding: 10vh 5%;
  }
  .reveal-text {
    font-size: clamp(1.6rem, 7vw, 3rem) !important;
    margin-bottom: 1.5rem !important;
  }
  .vision-desc {
    font-size: 1rem;
  }

  /* Capabilities */
  .cinema-capabilities {
    padding: 6vh 4%;
  }
  .cap-grid {
    gap: 1.2rem;
  }
  .cap-item {
    padding: 2.5rem 2rem;
    border-radius: 24px;
  }
  .cap-item h3 {
    font-size: 1.4rem !important;
  }
  .cap-item p {
    font-size: 0.95rem;
  }
  .cap-num {
    margin-bottom: 1rem;
  }

  /* Gateway */
  .cinema-gateway {
    padding: 8vh 4%;
  }
  .gateway-card {
    padding: 3.5rem 1.8rem;
    border-radius: 28px;
  }
  .gateway-title {
    font-size: clamp(1.6rem, 7vw, 3rem) !important;
    margin-bottom: 1.2rem !important;
  }
  .gateway-desc {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.5);
    margin-bottom: 2rem;
  }
  .btn-super-portal {
    padding: 1rem 2rem;
    font-size: 1rem;
    gap: 1rem;
    width: 100%;
    justify-content: center;
  }

  /* 内页(产品/关于/联系) board 区域 */
  #board {
    padding-top: 72px !important;
    margin-top: 0 !important;
  }
  .container.nopadding-x-md {
    padding-top: 72px !important;
  }
  .markdown-body,
  .post-content {
    font-size: 1rem !important;
    line-height: 1.85 !important;
    padding: 0 0.5rem;
  }
}

/* 超小屏 (≤ 390px) */
@media (max-width: 390px) {
  .hero-title {
    font-size: clamp(2.8rem, 14vw, 5rem) !important;
  }
  .btn-main-glow {
    padding: 0.9rem 2rem;
  }
  .gateway-card {
    padding: 3rem 1.2rem;
  }
}

.page-content > h1, .post-header { display: none !important; }
#banner .banner-text, .page-header, .post-header { display: none !important; }
.page-content { padding-top: 0 !important; margin-top: 0 !important; }
#board .row { margin: 0 !important; }
#board .col-12 { padding: 0 !important; }
footer, #footer { display: none !important; }
#scroll-top-button { display: none !important; }

/* 所有页面的 #board 容器留出导航栏高度 */
.container.nopadding-x-md {
  padding-top: 80px !important;
}

#board {
  padding-top: 80px !important;
}

/* 首页有 cinema-layout，覆盖掉 #board 的 padding（cinema-layout 自己是 fixed） */
.cinema-layout {
  /* 已在上方定义 */
}

/* ═══════════════════════════════════════════
   内页 Markdown 排版系统（联系/关于/产品页）
   ═══════════════════════════════════════════ */

.markdown-body,
.post-content,
.page-content .container {
  font-family: var(--font-sans);
  font-size: 1rem !important;
  line-height: var(--leading-loose) !important;
  color: rgba(255, 255, 255, 0.82);
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 2rem 6rem;
}

/* 一级标题 */
.markdown-body h1,
.post-content h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: var(--leading-tight);
  color: #fff;
  margin: 0 0 2.5rem !important;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--cinema-border);
}

/* 二级标题 */
.markdown-body h2,
.post-content h2 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cinema-accent);
  margin: 2.5rem 0 0.8rem !important;
}

/* 三级标题 */
.markdown-body h3,
.post-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: rgba(255, 255, 255, 0.9);
  margin: 1.5rem 0 0.6rem !important;
}

/* 正文段落 */
.markdown-body p,
.post-content p {
  font-size: 1.05rem !important;
  line-height: var(--leading-loose);
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 1.2rem !important;
}

/* 无序/有序列表 */
.markdown-body ul,
.markdown-body ol,
.post-content ul,
.post-content ol {
  padding-left: 1.4em;
  margin-bottom: 1.4rem;
}

.markdown-body li,
.post-content li {
  font-size: 1.2rem !important;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 0.2rem;
}

/* strong / bold */
.markdown-body strong,
.post-content strong {
  font-weight: 700;
  color: rgba(255, 255, 255, 0.95);
}

/* 链接 */
.markdown-body a,
.post-content a {
  color: var(--cinema-accent-alt);
  text-decoration: none;
  border-bottom: 1px solid rgba(16, 185, 129, 0.3);
  transition: border-color 0.2s, color 0.2s;
}

.markdown-body a:hover,
.post-content a:hover {
  color: #6ee7b7;
  border-bottom-color: rgba(16, 185, 129, 0.6);
}

/* 分割线 */
.markdown-body hr,
.post-content hr {
  border: none;
  border-top: 1px solid var(--cinema-border);
  margin: 3rem 0;
}

/* 内联代码 */
.markdown-body code,
.post-content code {
  font-size: 0.9em;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 4px;
  padding: 0.15em 0.45em;
  color: var(--cinema-accent-alt);
}

/* ═══════════════════════════════════════════
   联系页面专属样式
   ═══════════════════════════════════════════ */

.contact-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem 2rem 8rem;
}

/* Hero */
.contact-hero {
  text-align: center;
  margin-bottom: 4rem;
}

.contact-hero-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--cinema-accent);
  border: 1px solid rgba(59, 130, 246, 0.4);
  border-radius: 100px;
  padding: 0.3rem 1rem;
  margin-bottom: 1.5rem;
}

.contact-hero-title {
  font-size: clamp(2rem, 5vw, 3rem) !important;
  font-weight: 800 !important;
  letter-spacing: -0.03em !important;
  color: #fff !important;
  margin: 0 0 1rem !important;
  border: none !important;
  padding: 0 !important;
}

.contact-hero-sub {
  font-size: 1.05rem !important;
  color: rgba(255, 255, 255, 0.45) !important;
  max-width: 480px;
  margin: 0 auto !important;
  line-height: 1.7;
}

/* Grid */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

/* Card */
.contact-card {
  background: rgba(59, 130, 246, 0.05);
  border: 1px solid rgba(59, 130, 246, 0.15);
  border-radius: 20px;
  padding: 2rem 2rem 2rem;
  transition: border-color 0.3s, background 0.3s;
}

.contact-card:hover {
  border-color: rgba(59, 130, 246, 0.4);
  background: rgba(59, 130, 246, 0.09);
}

.contact-card--wide {
  grid-column: span 2;
}

/* Icon */
.contact-card-icon {
  width: 28px;
  height: 28px;
  color: var(--cinema-accent);
  flex-shrink: 0;
}

.contact-card-icon svg {
  width: 100%;
  height: 100%;
}

/* Label */
.contact-card-label {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--cinema-accent);
}

.contact-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.2rem;
}

/* Info rows */
.contact-info-row {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  text-decoration: none !important;
  color: inherit;
}

.contact-info-row:last-child {
  border-bottom: none;
}

.contact-info-key {
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.35);
  min-width: 2.5rem;
  flex-shrink: 0;
}

.contact-info-val {
  font-size: 1.25rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  word-break: break-all;
}

.contact-link {
  color: var(--cinema-accent-alt) !important;
}

a.contact-info-row:hover .contact-info-val {
  color: #fff;
}

a.contact-info-row:hover .contact-link {
  color: #6ee7b7 !important;
}

/* 响应式 */
@media (max-width: 640px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .contact-card--wide {
    grid-column: span 1;
  }
  .contact-page {
    padding: 2rem 1.2rem 6rem;
  }
}