/* ============================================================
   蘑菇视频官网 - 主样式文件
   深空黑 + 霓虹蓝紫渐变配色，未来科技感
   ============================================================ */

/* ---- CSS变量 ---- */
:root {
  --primary: #7c3aed;
  --primary-light: #a78bfa;
  --secondary: #06b6d4;
  --accent: #f59e0b;
  --bg-dark: #0a0a14;
  --bg-card: #12121f;
  --bg-card2: #1a1a2e;
  --text-main: #e2e8f0;
  --text-muted: #94a3b8;
  --text-light: #cbd5e1;
  --border: rgba(124,58,237,0.25);
  --gradient: linear-gradient(135deg, #7c3aed 0%, #06b6d4 100%);
  --gradient-hero: linear-gradient(135deg, #0a0a14 0%, #1a0a2e 50%, #0a1428 100%);
  --shadow: 0 4px 24px rgba(124,58,237,0.18);
  --shadow-lg: 0 8px 48px rgba(124,58,237,0.28);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s ease;
  --font: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--secondary); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font); }

/* ---- Container ---- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: 50px;
  font-size: 15px; font-weight: 600;
  transition: all var(--transition); cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient); color: #fff;
  box-shadow: 0 4px 20px rgba(124,58,237,0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(124,58,237,0.55);
  color: #fff;
}
.btn-outline {
  background: transparent; color: var(--primary-light);
  border: 2px solid var(--primary);
}
.btn-outline:hover {
  background: rgba(124,58,237,0.15);
  transform: translateY(-2px);
  color: var(--primary-light);
}
.btn-lg { padding: 16px 36px; font-size: 16px; }
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-full { width: 100%; justify-content: center; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(10,10,20,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 22px; font-weight: 800; color: var(--text-main);
}
.logo:hover { color: var(--primary-light); }
.logo-icon { font-size: 28px; }
.logo-text {
  background: var(--gradient); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}
.main-nav ul { display: flex; gap: 4px; align-items: center; }
.nav-link {
  padding: 8px 16px; border-radius: 8px;
  color: var(--text-light); font-size: 14px; font-weight: 500;
  transition: all var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: var(--primary-light);
  background: rgba(124,58,237,0.12);
}
.nav-cta {
  background: var(--gradient); color: #fff !important;
  border-radius: 50px; padding: 8px 20px;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: var(--shadow); color: #fff !important; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--text-main); border-radius: 2px;
  transition: all var(--transition);
}

/* Search Bar */
.search-bar-wrap {
  background: rgba(18,18,31,0.9);
  border-top: 1px solid var(--border);
  padding: 10px 0;
}
.search-form {
  display: flex; gap: 0; max-width: 700px; margin: 0 auto;
  background: var(--bg-card2); border-radius: 50px;
  border: 1px solid var(--border); overflow: hidden;
}
.search-input {
  flex: 1; padding: 12px 20px;
  background: transparent; border: none; outline: none;
  color: var(--text-main); font-size: 14px; font-family: var(--font);
}
.search-input::placeholder { color: var(--text-muted); }
.search-btn {
  padding: 10px 24px; background: var(--gradient);
  color: #fff; font-size: 14px; font-weight: 600;
  display: flex; align-items: center; gap: 6px;
  border-radius: 0 50px 50px 0;
  transition: all var(--transition);
}
.search-btn:hover { opacity: 0.9; }
.search-tips {
  max-width: 700px; margin: 8px auto 0;
  background: var(--bg-card2); border: 1px solid var(--border);
  border-radius: 12px; padding: 12px 16px;
  font-size: 13px; color: var(--text-muted);
}

/* Breadcrumb */
.breadcrumb-nav {
  background: rgba(18,18,31,0.6);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.breadcrumb {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; color: var(--text-muted);
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary-light); }
.bc-sep { color: var(--text-muted); }

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero-section {
  position: relative; min-height: 85vh;
  display: flex; align-items: center;
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-img { width: 100%; height: 100%; object-fit: cover; }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(10,10,20,0.88) 0%, rgba(26,10,46,0.75) 50%, rgba(10,20,40,0.85) 100%);
}
.hero-content {
  position: relative; z-index: 1;
  padding: 80px 20px;
}
.hero-badge {
  display: inline-block; padding: 6px 16px;
  background: rgba(124,58,237,0.25); border: 1px solid var(--primary);
  border-radius: 50px; font-size: 13px; color: var(--primary-light);
  margin-bottom: 20px; animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(124,58,237,0.4); }
  50% { box-shadow: 0 0 0 8px rgba(124,58,237,0); }
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900; line-height: 1.2;
  margin-bottom: 20px;
}
.brand-name {
  background: var(--gradient); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-sub {
  font-size: clamp(14px, 2vw, 18px);
  color: var(--text-light); max-width: 700px;
  margin-bottom: 16px; line-height: 1.8;
}
.hero-domain-tip {
  font-size: 13px; color: var(--text-muted);
  margin-bottom: 28px;
}
.hero-domain-tip strong { color: var(--secondary); }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats {
  display: flex; gap: 32px; flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-num {
  display: block; font-size: 2rem; font-weight: 800;
  background: var(--gradient); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}
.stat-label { font-size: 13px; color: var(--text-muted); }

/* ============================================================
   SECTIONS
   ============================================================ */
.section { padding: 80px 0; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800; margin-bottom: 12px;
  background: var(--gradient); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}
.section-sub { font-size: 16px; color: var(--text-muted); }
.section-more { text-align: center; margin-top: 40px; }

/* ============================================================
   VIDEO SECTION
   ============================================================ */
.video-section { background: var(--bg-card); }
.video-tabs {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-bottom: 32px; justify-content: center;
}
.tab-btn {
  padding: 8px 20px; border-radius: 50px;
  font-size: 14px; color: var(--text-muted);
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.tab-btn.active, .tab-btn:hover {
  background: var(--gradient); color: #fff;
  border-color: transparent;
}
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.video-card {
  background: var(--bg-card2); border-radius: var(--radius-lg);
  border: 1px solid var(--border); overflow: hidden;
  transition: all var(--transition);
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.video-thumb-wrap {
  position: relative; overflow: hidden;
  aspect-ratio: 16/9;
}
.video-thumb {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .video-thumb { transform: scale(1.05); }
.video-play-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.45);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity var(--transition);
}
.video-card:hover .video-play-overlay { opacity: 1; }
.play-btn {
  width: 60px; height: 60px; border-radius: 50%;
  background: rgba(124,58,237,0.9);
  display: flex; align-items: center; justify-content: center;
  color: #fff; transition: transform var(--transition);
  box-shadow: 0 4px 20px rgba(124,58,237,0.6);
}
.play-btn:hover { transform: scale(1.1); }
.play-btn svg { width: 24px; height: 24px; margin-left: 3px; }
.video-duration {
  position: absolute; bottom: 10px; right: 10px;
  background: rgba(0,0,0,0.75); color: #fff;
  padding: 3px 8px; border-radius: 4px; font-size: 12px;
}
.video-badge {
  position: absolute; top: 10px; left: 10px;
  background: var(--gradient); color: #fff;
  padding: 3px 10px; border-radius: 50px; font-size: 11px; font-weight: 600;
}
.video-info { padding: 16px; }
.video-title {
  font-size: 14px; font-weight: 600; line-height: 1.5;
  margin-bottom: 10px;
}
.video-title a { color: var(--text-main); }
.video-title a:hover { color: var(--primary-light); }
.video-meta {
  display: flex; gap: 12px; flex-wrap: wrap;
  font-size: 12px; color: var(--text-muted);
}
.video-author { color: var(--secondary); font-weight: 500; }

/* ============================================================
   PRODUCTS SECTION
   ============================================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.product-card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); padding: 32px 24px;
  text-align: center; transition: all var(--transition);
  position: relative;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.product-card.featured {
  border-color: var(--primary);
  background: linear-gradient(135deg, rgba(124,58,237,0.1) 0%, rgba(6,182,212,0.05) 100%);
}
.product-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--gradient); color: #fff;
  padding: 4px 16px; border-radius: 50px; font-size: 12px; font-weight: 600;
}
.product-icon { font-size: 3rem; margin-bottom: 16px; }
.product-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.product-card p { font-size: 14px; color: var(--text-muted); margin-bottom: 20px; line-height: 1.6; }

/* ============================================================
   TECH SECTION
   ============================================================ */
.tech-section { background: var(--bg-card); }
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.tech-item {
  background: var(--bg-card2); border-radius: var(--radius);
  border: 1px solid var(--border); padding: 28px;
  transition: all var(--transition);
}
.tech-item:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.tech-icon { font-size: 2.5rem; margin-bottom: 14px; }
.tech-item h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; color: var(--primary-light); }
.tech-item p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* ============================================================
   SOLUTION SECTION
   ============================================================ */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.solution-card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); overflow: hidden;
  transition: all var(--transition);
}
.solution-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.solution-img { width: 100%; height: 200px; object-fit: cover; }
.solution-body { padding: 20px; }
.solution-tag {
  display: inline-block; padding: 3px 12px;
  background: rgba(124,58,237,0.2); color: var(--primary-light);
  border-radius: 50px; font-size: 12px; font-weight: 600;
  margin-bottom: 10px;
}
.solution-body h3 { font-size: 16px; font-weight: 700; margin-bottom: 10px; }
.solution-body p { font-size: 13px; color: var(--text-muted); margin-bottom: 14px; line-height: 1.6; }
.solution-link { font-size: 13px; color: var(--secondary); font-weight: 600; }
.solution-link:hover { color: var(--primary-light); }

/* ============================================================
   PROCESS SECTION
   ============================================================ */
.process-section { background: var(--bg-card); }
.process-steps {
  display: flex; align-items: center; gap: 16px;
  flex-wrap: wrap; justify-content: center;
}
.process-step {
  flex: 1; min-width: 200px; max-width: 240px;
  background: var(--bg-card2); border-radius: var(--radius-lg);
  border: 1px solid var(--border); padding: 28px 20px;
  text-align: center; transition: all var(--transition);
}
.process-step:hover { border-color: var(--primary); transform: translateY(-4px); }
.step-num {
  font-size: 2.5rem; font-weight: 900;
  background: var(--gradient); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
  margin-bottom: 8px;
}
.step-icon { font-size: 2rem; margin-bottom: 12px; }
.process-step h3 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.process-step p { font-size: 13px; color: var(--text-muted); }
.process-arrow { font-size: 2rem; color: var(--primary); opacity: 0.6; }

/* ============================================================
   CASES SECTION
   ============================================================ */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.case-card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); padding: 28px;
  transition: all var(--transition);
}
.case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.case-avatar { font-size: 3rem; margin-bottom: 12px; }
.case-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.case-category { font-size: 12px; color: var(--secondary); margin-bottom: 12px; }
.case-result { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 14px; }
.case-result strong { color: var(--accent); }
.case-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.case-tags span {
  padding: 3px 10px; background: rgba(124,58,237,0.15);
  color: var(--primary-light); border-radius: 50px; font-size: 11px;
}

/* ============================================================
   NEWS SECTION
   ============================================================ */
.news-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.featured-news {
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); overflow: hidden;
  transition: all var(--transition);
}
.featured-news:hover { border-color: var(--primary); transform: translateY(-4px); }
.news-img { width: 100%; height: 220px; object-fit: cover; }
.news-body { padding: 20px; }
.news-tag {
  display: inline-block; padding: 3px 12px;
  background: rgba(6,182,212,0.2); color: var(--secondary);
  border-radius: 50px; font-size: 12px; font-weight: 600;
  margin-bottom: 10px;
}
.news-body h3 { font-size: 16px; font-weight: 700; margin-bottom: 10px; }
.news-body h3 a { color: var(--text-main); }
.news-body h3 a:hover { color: var(--primary-light); }
.news-body p { font-size: 13px; color: var(--text-muted); margin-bottom: 12px; line-height: 1.6; }
.news-date { font-size: 12px; color: var(--text-muted); }
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-item {
  background: var(--bg-card); border-radius: var(--radius);
  border: 1px solid var(--border); padding: 18px;
  transition: all var(--transition);
}
.news-item:hover { border-color: var(--primary); transform: translateX(4px); }
.news-item h3 { font-size: 14px; font-weight: 700; margin: 6px 0 6px; }
.news-item h3 a { color: var(--text-main); }
.news-item h3 a:hover { color: var(--primary-light); }
.news-item p { font-size: 12px; color: var(--text-muted); margin-bottom: 8px; }

/* ============================================================
   REVIEWS SECTION
   ============================================================ */
.reviews-section { background: var(--bg-card); }
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.review-card {
  background: var(--bg-card2); border-radius: var(--radius-lg);
  border: 1px solid var(--border); padding: 24px;
  transition: all var(--transition);
}
.review-card:hover { border-color: var(--primary); transform: translateY(-4px); }
.review-header { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.review-avatar { font-size: 2.5rem; }
.review-name { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.review-stars { color: var(--accent); font-size: 14px; }
.review-content { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 12px; }
.review-date { font-size: 12px; color: var(--text-muted); }

/* ============================================================
   FAQ SECTION
   ============================================================ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card); border-radius: var(--radius);
  border: 1px solid var(--border); margin-bottom: 12px;
  overflow: hidden; transition: border-color var(--transition);
}
.faq-item:hover { border-color: var(--primary); }
.faq-q {
  width: 100%; text-align: left; padding: 18px 20px;
  font-size: 15px; font-weight: 600; color: var(--text-main);
  display: flex; justify-content: space-between; align-items: center;
  transition: color var(--transition);
}
.faq-q::after {
  content: '+'; font-size: 20px; color: var(--primary-light);
  transition: transform var(--transition);
}
.faq-q[aria-expanded="true"] { color: var(--primary-light); }
.faq-q[aria-expanded="true"]::after { transform: rotate(45deg); }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 20px;
}
.faq-a.open {
  max-height: 300px;
  padding: 0 20px 18px;
}
.faq-a p { font-size: 14px; color: var(--text-muted); line-height: 1.8; }

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px; margin-bottom: 48px;
}
.contact-card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); padding: 28px;
  text-align: center; transition: all var(--transition);
}
.contact-card:hover { border-color: var(--primary); transform: translateY(-4px); }
.contact-icon { font-size: 2.5rem; margin-bottom: 14px; }
.contact-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.contact-card p { font-size: 15px; color: var(--primary-light); font-weight: 600; margin-bottom: 4px; }
.contact-card span { font-size: 12px; color: var(--text-muted); }
.download-cta {
  text-align: center; padding: 60px 20px;
  background: linear-gradient(135deg, rgba(124,58,237,0.1) 0%, rgba(6,182,212,0.05) 100%);
  border-radius: var(--radius-lg); border: 1px solid var(--border);
}
.download-cta h3 { font-size: 1.8rem; font-weight: 800; margin-bottom: 12px; }
.download-cta p { font-size: 15px; color: var(--text-muted); margin-bottom: 28px; }

/* ============================================================
   PAGE HERO (内页)
   ============================================================ */
.page-hero {
  padding: 60px 0;
  background: linear-gradient(135deg, rgba(124,58,237,0.15) 0%, rgba(6,182,212,0.08) 100%);
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.page-h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 900; margin-bottom: 12px;
  background: var(--gradient); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}
.page-sub { font-size: 16px; color: var(--text-muted); }

/* ============================================================
   DOWNLOAD PAGE
   ============================================================ */
.download-main {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 48px; align-items: center; margin-bottom: 64px;
}
.download-hero-img img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.download-info h2 { font-size: 2rem; font-weight: 800; margin-bottom: 8px; }
.download-version { font-size: 13px; color: var(--text-muted); margin-bottom: 20px; }
.download-features { margin-bottom: 28px; }
.download-features li { padding: 8px 0; font-size: 14px; color: var(--text-light); border-bottom: 1px solid var(--border); }
.download-btns { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 16px; }
.download-domain-tip { font-size: 13px; color: var(--text-muted); }
.download-steps { margin-bottom: 64px; }
.download-steps h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 32px; text-align: center; }
.steps-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.step-card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); padding: 24px;
  text-align: center; transition: all var(--transition);
}
.step-card:hover { border-color: var(--primary); transform: translateY(-4px); }
.step-card .step-num {
  font-size: 2rem; font-weight: 900;
  background: var(--gradient); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
  margin-bottom: 12px;
}
.step-card h3 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.step-card p { font-size: 13px; color: var(--text-muted); }
.system-req h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 24px; text-align: center; }
.req-table { width: 100%; border-collapse: collapse; }
.req-table th, .req-table td {
  padding: 14px 16px; text-align: left;
  border-bottom: 1px solid var(--border); font-size: 14px;
}
.req-table th { background: rgba(124,58,237,0.1); color: var(--primary-light); font-weight: 700; }
.req-table tr:hover td { background: rgba(124,58,237,0.05); }

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.about-intro {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 48px; align-items: center; margin-bottom: 64px;
}
.about-img-wrap img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.about-text h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 16px; }
.about-text p { font-size: 15px; color: var(--text-muted); margin-bottom: 16px; line-height: 1.8; }
.about-stats { display: flex; gap: 24px; flex-wrap: wrap; margin-top: 24px; }
.about-stats .stat { text-align: center; }
.about-stats .num {
  display: block; font-size: 1.8rem; font-weight: 800;
  background: var(--gradient); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}
.about-stats .label { font-size: 12px; color: var(--text-muted); }
.about-mission { margin-bottom: 64px; }
.about-mission h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 32px; text-align: center; }
.mission-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.mission-card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); padding: 28px; text-align: center;
  transition: all var(--transition);
}
.mission-card:hover { border-color: var(--primary); transform: translateY(-4px); }
.mission-icon { font-size: 2.5rem; margin-bottom: 14px; }
.mission-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; color: var(--primary-light); }
.mission-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.about-timeline h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 32px; text-align: center; }
.timeline { position: relative; padding-left: 40px; }
.timeline::before {
  content: ''; position: absolute; left: 12px; top: 0; bottom: 0;
  width: 2px; background: var(--gradient);
}
.timeline-item { position: relative; margin-bottom: 32px; }
.timeline-item::before {
  content: ''; position: absolute; left: -34px; top: 6px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--gradient); box-shadow: 0 0 12px rgba(124,58,237,0.6);
}
.tl-year {
  font-size: 1.2rem; font-weight: 800; color: var(--primary-light);
  margin-bottom: 6px;
}
.tl-content h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.tl-content p { font-size: 14px; color: var(--text-muted); }

/* ============================================================
   SOLUTION PAGE
   ============================================================ */
.solution-page-grid { display: flex; flex-direction: column; gap: 40px; }
.solution-page-card {
  display: grid; grid-template-columns: 380px 1fr;
  gap: 40px; align-items: start;
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); overflow: hidden;
  transition: all var(--transition);
}
.solution-page-card:nth-child(even) { grid-template-columns: 1fr 380px; }
.solution-page-card:nth-child(even) img { order: 2; }
.solution-page-card:nth-child(even) .sp-body { order: 1; }
.solution-page-card:hover { border-color: var(--primary); box-shadow: var(--shadow-lg); }
.solution-page-card img { width: 100%; height: 280px; object-fit: cover; }
.sp-body { padding: 32px; }
.sp-body h2 { font-size: 1.5rem; font-weight: 800; margin: 10px 0 14px; }
.sp-body p { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; line-height: 1.7; }
.sp-body ul { margin-bottom: 24px; }
.sp-body ul li {
  padding: 8px 0; font-size: 14px; color: var(--text-light);
  border-bottom: 1px solid var(--border);
}
.sp-body ul li::before { content: '✦ '; color: var(--primary-light); }

/* ============================================================
   CASES PAGE
   ============================================================ */
.cases-page-grid { display: flex; flex-direction: column; gap: 40px; }
.case-page-card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); overflow: hidden;
  transition: all var(--transition);
}
.case-page-card:hover { border-color: var(--primary); }
.case-header {
  display: flex; align-items: center; gap: 20px;
  padding: 24px 28px; border-bottom: 1px solid var(--border);
}
.case-avatar-lg { font-size: 3.5rem; }
.case-header h2 { font-size: 1.4rem; font-weight: 800; margin-bottom: 4px; }
.case-img { width: 100%; height: 280px; object-fit: cover; }
.case-detail { padding: 28px; }
.case-detail h3 { font-size: 16px; font-weight: 700; margin-bottom: 10px; color: var(--primary-light); }
.case-detail p { font-size: 14px; color: var(--text-muted); margin-bottom: 14px; line-height: 1.7; }
.case-detail ul { margin-bottom: 20px; }
.case-detail ul li {
  padding: 8px 0; font-size: 14px; color: var(--text-light);
  border-bottom: 1px solid var(--border);
}
.case-detail ul li strong { color: var(--accent); }
.case-quote {
  padding: 16px 20px;
  background: rgba(124,58,237,0.1); border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 14px; color: var(--text-light); font-style: italic;
}

/* ============================================================
   NEWS PAGE
   ============================================================ */
.news-page-grid { display: flex; flex-direction: column; gap: 28px; }
.news-page-card {
  display: grid; grid-template-columns: 320px 1fr;
  gap: 0; background: var(--bg-card);
  border-radius: var(--radius-lg); border: 1px solid var(--border);
  overflow: hidden; transition: all var(--transition);
}
.news-page-card:hover { border-color: var(--primary); transform: translateX(4px); }
.news-page-img { width: 100%; height: 220px; object-fit: cover; }
.news-page-body { padding: 24px 28px; }
.news-page-body h2 { font-size: 1.2rem; font-weight: 700; margin: 8px 0 12px; }
.news-page-body h2 a { color: var(--text-main); }
.news-page-body h2 a:hover { color: var(--primary-light); }
.news-page-body p { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; line-height: 1.7; }
.news-footer { display: flex; align-items: center; justify-content: space-between; }
.news-read-more { font-size: 13px; color: var(--secondary); font-weight: 600; }

/* ============================================================
   FAQ PAGE
   ============================================================ */
.faq-page-container { max-width: 860px; }
.faq-contact-tip {
  text-align: center; margin-top: 40px; padding: 32px;
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}
.faq-contact-tip p { font-size: 15px; color: var(--text-muted); margin-bottom: 20px; }
.faq-contact-tip a { color: var(--primary-light); }

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-page-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 48px; align-items: start;
}
.contact-info-panel h2, .contact-form-panel h2 {
  font-size: 1.5rem; font-weight: 800; margin-bottom: 28px;
}
.contact-info-list { display: flex; flex-direction: column; gap: 20px; }
.contact-info-item {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 20px; background: var(--bg-card);
  border-radius: var(--radius); border: 1px solid var(--border);
  transition: all var(--transition);
}
.contact-info-item:hover { border-color: var(--primary); }
.ci-icon { font-size: 2rem; flex-shrink: 0; }
.contact-info-item h3 { font-size: 14px; font-weight: 700; margin-bottom: 4px; color: var(--primary-light); }
.contact-info-item p { font-size: 15px; font-weight: 600; margin-bottom: 2px; }
.contact-info-item span { font-size: 12px; color: var(--text-muted); }
.contact-form { display: flex; flex-direction: column; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 14px; font-weight: 600; color: var(--text-light); }
.form-group input, .form-group select, .form-group textarea {
  padding: 12px 16px; background: var(--bg-card2);
  border: 1px solid var(--border); border-radius: var(--radius);
  color: var(--text-main); font-size: 14px; font-family: var(--font);
  transition: border-color var(--transition); outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--primary);
}
.form-group select option { background: var(--bg-card2); }
.form-success {
  padding: 20px; background: rgba(6,182,212,0.1);
  border: 1px solid var(--secondary); border-radius: var(--radius);
  color: var(--secondary); font-size: 15px; text-align: center;
}

/* ============================================================
   VIDEO FILTER (video page)
   ============================================================ */
.video-filter {
  display: flex; align-items: center; gap: 12px;
  flex-wrap: wrap; margin-bottom: 28px;
}
.filter-label { font-size: 14px; color: var(--text-muted); white-space: nowrap; }
.filter-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-tag {
  padding: 6px 16px; border-radius: 50px;
  font-size: 13px; color: var(--text-muted);
  border: 1px solid var(--border); transition: all var(--transition);
}
.filter-tag.active, .filter-tag:hover {
  background: var(--gradient); color: #fff; border-color: transparent;
}
.pagination {
  display: flex; gap: 8px; justify-content: center;
  margin-top: 40px; flex-wrap: wrap;
}
.page-btn {
  padding: 8px 16px; border-radius: 8px;
  font-size: 14px; color: var(--text-muted);
  border: 1px solid var(--border); transition: all var(--transition);
}
.page-btn.active, .page-btn:hover {
  background: var(--gradient); color: #fff; border-color: transparent;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
}
.footer-top { padding: 60px 0 40px; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
  gap: 40px;
}
.footer-brand .footer-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 20px; font-weight: 800; color: var(--text-main);
  margin-bottom: 14px;
}
.footer-desc { font-size: 13px; color: var(--text-muted); line-height: 1.7; margin-bottom: 10px; }
.footer-domain { font-size: 12px; color: var(--text-muted); }
.footer-links h4 { font-size: 14px; font-weight: 700; color: var(--text-main); margin-bottom: 16px; }
.footer-links ul { display: flex; flex-direction: column; gap: 8px; }
.footer-links a { font-size: 13px; color: var(--text-muted); transition: color var(--transition); }
.footer-links a:hover { color: var(--primary-light); }
.footer-contact h4 { font-size: 14px; font-weight: 700; color: var(--text-main); margin-bottom: 16px; }
.footer-contact ul { display: flex; flex-direction: column; gap: 10px; }
.footer-contact li {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--text-muted);
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
}
.footer-bottom-inner {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 10px;
}
.footer-bottom p { font-size: 12px; color: var(--text-muted); }
.footer-icp a { color: var(--text-muted); margin: 0 4px; }
.footer-icp a:hover { color: var(--primary-light); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .news-grid { grid-template-columns: 1fr; }
  .solution-page-card { grid-template-columns: 1fr; }
  .solution-page-card:nth-child(even) { grid-template-columns: 1fr; }
  .solution-page-card:nth-child(even) img { order: 0; }
  .solution-page-card:nth-child(even) .sp-body { order: 0; }
  .solution-page-card img { height: 220px; }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .main-nav.open { display: block; position: absolute; top: 100%; left: 0; right: 0; background: rgba(10,10,20,0.98); padding: 16px; border-bottom: 1px solid var(--border); }
  .main-nav.open ul { flex-direction: column; gap: 4px; }
  .nav-toggle { display: flex; }
  .hero-section { min-height: 70vh; }
  .hero-stats { gap: 20px; }
  .hero-actions { flex-direction: column; }
  .download-main, .about-intro { grid-template-columns: 1fr; }
  .contact-page-grid { grid-template-columns: 1fr; }
  .mission-grid { grid-template-columns: 1fr; }
  .process-steps { flex-direction: column; align-items: stretch; }
  .process-arrow { transform: rotate(90deg); text-align: center; }
  .news-page-card { grid-template-columns: 1fr; }
  .news-page-img { height: 200px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-contact { grid-column: 1 / -1; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .video-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .tech-grid { grid-template-columns: 1fr; }
  .solution-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .section { padding: 48px 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .download-btns { flex-direction: column; }
  .steps-grid { grid-template-columns: 1fr; }
}