/* ============= Reset & Base ============= */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #0a0e27;
  color: #fff;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; color: inherit; font: inherit; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* ============= Particle canvas ============= */
#particles { position: fixed; inset: 0; z-index: -1; pointer-events: none; }

/* ============= 渐变文字 ============= */
.gradient-text {
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

/* ============= 通用按钮 ============= */
.btn-primary, .btn-outline, .btn-ghost, .btn-gold {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 22px; border-radius: 8px; font-weight: 600;
  transition: all 0.2s; cursor: pointer; white-space: nowrap;
}
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-xl { padding: 18px 44px; font-size: 18px; border-radius: 12px; }
.btn-block { width: 100%; }

.btn-primary {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff; box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5); }

.btn-outline {
  background: rgba(255,255,255,0.05); color: #fff; border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
}
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.4); }

.btn-ghost { color: rgba(255,255,255,0.7); padding: 8px 16px; }
.btn-ghost:hover { color: #fff; }

.btn-gold {
  background: linear-gradient(135deg, #fee140, #fa709a);
  color: #1a1a2e; box-shadow: 0 4px 20px rgba(254, 225, 64, 0.3);
}
.btn-gold:hover { transform: translateY(-2px); }

/* ============= 顶部导航 ============= */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 16px 0; transition: all 0.3s;
  background: rgba(10, 14, 39, 0.4);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.nav.scrolled {
  background: rgba(10, 14, 39, 0.95);
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.nav-inner { max-width: 1280px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 8px; font-size: 20px; font-weight: 700; }
.logo-icon { font-size: 24px; }
.logo-text { color: #fff; }
.logo-accent {
  background: linear-gradient(135deg, #6366f1, #ec4899);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; color: transparent; margin-left: 4px;
}
.nav-menu { display: flex; gap: 32px; }
.nav-menu a { color: rgba(255,255,255,0.7); font-size: 14px; transition: color 0.2s; }
.nav-menu a:hover { color: #fff; }
.nav-cta { display: flex; gap: 12px; align-items: center; }



/* ============= 轮播图 ============= */
.carousel-section { padding: 100px 24px 8px; margin-bottom: 8px; position: relative; }
.carousel {
  position: relative; max-width: 1280px; margin: 0 auto;
  border-radius: 24px; overflow: hidden; aspect-ratio: 16/5;
  background: #0a0e27; border: 1px solid rgba(255,255,255,0.1);
  box-shadow: 0 30px 60px rgba(0,0,0,0.4);
}
.carousel-track { position: relative; width: 100%; height: 100%; }
.carousel-slide {
  position: absolute; inset: 0; display: flex; align-items: center;
  padding: 60px 80px; opacity: 0; transition: opacity 0.6s;
  background-size: cover; background-position: center;
}
.carousel-slide.active { opacity: 1; }
.carousel-slide::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(10,14,39,0.7) 0%, rgba(10,14,39,0.3) 60%, transparent 100%);
  z-index: 1;
}
.carousel-content { position: relative; z-index: 2; max-width: 600px; }
.carousel-emoji { font-size: 56px; margin-bottom: 16px; }
.carousel-title { font-size: 36px; font-weight: 800; margin-bottom: 12px; line-height: 1.2; }
.carousel-subtitle { font-size: 16px; color: rgba(255,255,255,0.85); margin-bottom: 24px; }
.carousel-cta {
  display: inline-flex; align-items: center; padding: 12px 28px;
  background: rgba(255,255,255,0.15); backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.3); border-radius: 8px;
  color: #fff; font-weight: 600; transition: all 0.2s;
}
.carousel-cta:hover { background: rgba(255,255,255,0.25); transform: translateY(-2px); }
.carousel-dots { position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; z-index: 3; }
.carousel-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,0.4); cursor: pointer; transition: all 0.2s; }
.carousel-dot.active { width: 32px; border-radius: 4px; background: #fff; }
.carousel-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255,255,255,0.1); backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2); color: #fff;
  font-size: 24px; cursor: pointer; transition: all 0.2s; z-index: 3;
}
.carousel-arrow:hover { background: rgba(255,255,255,0.2); }
.carousel-prev { left: 24px; } .carousel-next { right: 24px; }

/* ============= 资讯频道 ============= */
.news-tabs { display: flex; gap: 12px; justify-content: center; margin-bottom: 48px; flex-wrap: wrap; }
.news-tab {
  padding: 8px 20px; border-radius: 99px; font-size: 14px; font-weight: 500;
  background: rgba(255,255,255,0.05); color: rgba(255,255,255,0.7);
  border: 1px solid rgba(255,255,255,0.1); transition: all 0.2s;
}
.news-tab:hover { background: rgba(255,255,255,0.1); color: #fff; }
.news-tab.active { background: linear-gradient(135deg, #6366f1, #8b5cf6); color: #fff; border-color: transparent; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px; padding: 28px 24px; backdrop-filter: blur(20px);
  transition: all 0.3s; cursor: pointer; position: relative; overflow: hidden;
}
.news-card:hover { transform: translateY(-4px); border-color: rgba(99,102,241,0.3); }
.news-cover { font-size: 48px; margin-bottom: 16px; }
.news-cat { display: inline-block; padding: 2px 10px; border-radius: 99px; font-size: 11px; font-weight: 600; background: rgba(99,102,241,0.1); color: #a5b4fc; border: 1px solid rgba(99,102,241,0.2); margin-bottom: 12px; }
.news-title { font-size: 18px; font-weight: 700; line-height: 1.4; margin-bottom: 12px; color: #fff; }
.news-summary { font-size: 13px; color: rgba(255,255,255,0.6); line-height: 1.6; margin-bottom: 16px; min-height: 60px; }
.news-meta { display: flex; align-items: center; justify-content: space-between; font-size: 12px; color: rgba(255,255,255,0.4); padding-top: 12px; border-top: 1px solid rgba(255,255,255,0.05); }
.news-tags { display: flex; gap: 4px; flex-wrap: wrap; }
.news-tags span { padding: 1px 6px; background: rgba(255,255,255,0.05); border-radius: 3px; font-size: 10px; }
.news-empty { grid-column: 1/-1; text-align: center; padding: 60px; color: rgba(255,255,255,0.5); }

@media (max-width: 1024px) {
  .carousel { aspect-ratio: 16/8; }
  .carousel-slide { padding: 40px 50px; }
  .carousel-title { font-size: 28px; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .carousel-section { padding: 80px 16px 0; }
  .carousel { aspect-ratio: 4/5; border-radius: 16px; }
  .carousel-slide { padding: 30px 24px; align-items: flex-end; }
  .carousel-emoji { font-size: 40px; }
  .carousel-title { font-size: 22px; }
  .carousel-arrow { display: none; }
  .news-grid { grid-template-columns: 1fr; }
}

/* ============= Hero ============= */
.hero { margin-bottom: 8px;
  position: relative; min-height: 100vh; padding: 120px 24px 80px;
  display: flex; flex-direction: column; align-items: center; text-align: center;
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: -1; overflow: hidden; }
.hero-orb {
  position: absolute; border-radius: 50%;
  filter: blur(120px); opacity: 0.5; animation: float 20s ease-in-out infinite;
}
.hero-orb-1 { width: 600px; height: 600px; background: #6366f1; top: -200px; left: -100px; }
.hero-orb-2 { width: 500px; height: 500px; background: #8b5cf6; top: 100px; right: -150px; animation-delay: -5s; }
.hero-orb-3 { width: 400px; height: 400px; background: #ec4899; bottom: -100px; left: 30%; animation-delay: -10s; }
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -50px) scale(1.1); }
  66% { transform: translate(-20px, 30px) scale(0.9); }
}
.hero-inner { position: relative; z-index: 1; max-width: 900px; }
.hero-badge {
  display: inline-block; padding: 8px 16px; border-radius: 99px;
  background: rgba(99, 102, 241, 0.1); border: 1px solid rgba(99, 102, 241, 0.3);
  color: #a5b4fc; font-size: 13px; margin-bottom: 32px;
}
.hero-title { font-size: 72px; font-weight: 800; line-height: 1.1; margin-bottom: 24px; letter-spacing: -1px; }
.hero-line { display: block; }
.hero-sub { font-size: 18px; color: rgba(255,255,255,0.7); margin-bottom: 40px; line-height: 1.6; }
.hero-cta { display: flex; gap: 16px; justify-content: center; margin-bottom: 32px; flex-wrap: wrap; }
.hero-trust { display: flex; gap: 24px; justify-content: center; color: rgba(255,255,255,0.5); font-size: 14px; flex-wrap: wrap; }

/* Dashboard mock */
.hero-dashboard { position: relative; z-index: 1; margin-top: 64px; max-width: 1080px; width: 100%; }
.dash-mock {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  backdrop-filter: blur(20px);
  display: grid;
  grid-template-columns: 200px 1fr;
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,0.4);
  aspect-ratio: 16/9;
}
.dash-sidebar { background: rgba(99,102,241,0.05); padding: 20px 0; border-right: 1px solid rgba(255,255,255,0.05); }
.dash-logo { font-weight: 700; padding: 0 20px 20px; color: #fff; font-size: 14px; }
.dash-menu-item { padding: 8px 20px; font-size: 12px; color: rgba(255,255,255,0.5); }
.dash-menu-item.active { background: rgba(99,102,241,0.2); color: #fff; border-left: 2px solid #6366f1; }
.dash-content { padding: 20px 24px; }
.dash-stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 20px; }
.dash-stat { background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.05); border-radius: 8px; padding: 12px; }
.dash-stat-num { font-size: 18px; font-weight: 700; color: #fff; }
.dash-stat-lbl { font-size: 10px; color: rgba(255,255,255,0.4); }
.dash-chart {
  display: flex; gap: 6px; align-items: flex-end; height: 100px;
  background: rgba(255,255,255,0.02); border-radius: 8px; padding: 10px;
}
.dash-chart-bar {
  flex: 1; height: var(--h); background: linear-gradient(180deg, #6366f1, #8b5cf6);
  border-radius: 4px 4px 0 0; animation: grow 1.5s ease-out;
}
@keyframes grow { from { height: 0; } }
.dash-task {
  margin-top: 12px; padding: 8px 12px; background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.3); border-radius: 6px;
  font-size: 11px; color: #a5b4fc;
}

/* ============= 数据统计 ============= */
.stats { padding: 80px 0; background: linear-gradient(180deg, transparent, rgba(99,102,241,0.05), transparent); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.stat-item {
  text-align: center; padding: 32px 16px;
  background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px; backdrop-filter: blur(20px);
  position: relative; overflow: hidden;
}
.stat-item::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, #6366f1, transparent);
}
.stat-num {
  font-size: 56px; font-weight: 800;
  background: linear-gradient(135deg, #6366f1, #ec4899);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; line-height: 1; display: inline-block;
}
.stat-unit { font-size: 24px; color: #a5b4fc; display: inline-block; margin-left: 4px; }
.stat-lbl { margin-top: 12px; color: rgba(255,255,255,0.6); font-size: 14px; }

/* ============= Section 通用 ============= */
.section { padding: 100px 0; position: relative; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 60px; }
.section-eyebrow {
  display: inline-block; padding: 4px 14px; border-radius: 99px;
  background: rgba(99,102,241,0.1); border: 1px solid rgba(99,102,241,0.3);
  color: #a5b4fc; font-size: 12px; font-weight: 600; letter-spacing: 1px;
  margin-bottom: 20px;
}
.section-title {
  font-size: 44px; font-weight: 800; line-height: 1.2; margin-bottom: 16px;
  background: linear-gradient(180deg, #fff, rgba(255,255,255,0.7));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-sub { color: rgba(255,255,255,0.6); font-size: 16px; }

/* ============= AI 矩阵 ============= */
.ai-section { background: linear-gradient(180deg, transparent, rgba(139,92,246,0.03)); }
.ai-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.ai-card {
  background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px; padding: 28px 24px;
  backdrop-filter: blur(20px);
  transition: all 0.3s; position: relative; overflow: hidden;
}
.ai-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, #6366f1, transparent);
  opacity: 0; transition: opacity 0.3s;
}
.ai-card:hover { transform: translateY(-4px); border-color: rgba(99,102,241,0.4); box-shadow: 0 20px 40px rgba(0,0,0,0.2); }
.ai-card:hover::before { opacity: 1; }
.ai-icon { font-size: 40px; margin-bottom: 12px; }
.ai-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.ai-card p { color: rgba(255,255,255,0.6); font-size: 13px; margin-bottom: 16px; min-height: 36px; }
.ai-price { margin-bottom: 12px; }
.ai-price-num {
  font-size: 24px; font-weight: 800;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.ai-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.ai-tags span {
  padding: 2px 10px; border-radius: 99px; font-size: 11px;
  background: rgba(99,102,241,0.1); color: #a5b4fc; border: 1px solid rgba(99,102,241,0.2);
}

/* ============= 核心功能 ============= */
.features-section { background: linear-gradient(180deg, transparent, rgba(236,72,153,0.03)); }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.feature-card {
  background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px; padding: 32px 24px;
  backdrop-filter: blur(20px);
  transition: all 0.3s; position: relative; overflow: hidden;
  min-height: 280px;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; right: 0;
  width: 200px; height: 200px; border-radius: 50%;
  background: radial-gradient(circle, var(--c, #6366f1) 0%, transparent 70%);
  opacity: 0.1; transition: opacity 0.3s; transform: translate(50%, -50%);
}
.feature-card:hover { transform: translateY(-4px); border-color: rgba(99,102,241,0.3); }
.feature-card:hover::before { opacity: 0.3; }
.feature-1 { --c: #6366f1; } .feature-2 { --c: #8b5cf6; } .feature-3 { --c: #ec4899; }
.feature-4 { --c: #f5576c; } .feature-5 { --c: #fee140; } .feature-6 { --c: #38ef7d; }
.feature-7 { --c: #00d4ff; } .feature-8 { --c: #5b8def; }
.feature-num {
  position: absolute; top: 16px; right: 20px;
  font-size: 60px; font-weight: 800; color: rgba(255,255,255,0.05); line-height: 1;
}
.feature-icon { font-size: 36px; margin-bottom: 12px; }
.feature-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.feature-card > p { color: rgba(255,255,255,0.6); font-size: 13px; margin-bottom: 16px; }
.feature-list { display: flex; flex-direction: column; gap: 6px; }
.feature-list li { font-size: 13px; color: rgba(255,255,255,0.8); }

/* ============= 套餐价格 ============= */
.pricing-section { background: linear-gradient(180deg, transparent, rgba(99,102,241,0.05)); }
.billing-toggle {
  display: inline-flex; padding: 4px; background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1); border-radius: 99px;
  margin: 0 auto 48px; gap: 4px;
}
.billing-toggle { display: flex; justify-content: center; }
.toggle-btn {
  padding: 8px 24px; border-radius: 99px; color: rgba(255,255,255,0.6);
  font-size: 14px; font-weight: 500; transition: all 0.2s;
}
.toggle-btn.active { background: linear-gradient(135deg, #6366f1, #8b5cf6); color: #fff; }
.save-badge {
  display: inline-block; padding: 2px 8px; margin-left: 6px;
  background: rgba(254, 225, 64, 0.2); color: #fee140;
  border-radius: 4px; font-size: 11px; font-weight: 700;
}
.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.price-card {
  background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px; padding: 32px 24px; backdrop-filter: blur(20px);
  position: relative; transition: all 0.3s;
}
.price-card:hover { transform: translateY(-4px); border-color: rgba(99,102,241,0.3); }
.price-card.popular {
  background: linear-gradient(135deg, rgba(99,102,241,0.1), rgba(139,92,246,0.1));
  border-color: rgba(99,102,241,0.4);
  transform: scale(1.05);
}
.price-card.popular:hover { transform: scale(1.05) translateY(-4px); }
.popular-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  padding: 4px 16px; background: linear-gradient(135deg, #6366f1, #ec4899);
  border-radius: 99px; font-size: 11px; font-weight: 700; color: #fff;
}
.price-card.enterprise {
  background: linear-gradient(135deg, rgba(254,225,64,0.1), rgba(250,112,154,0.1));
  border-color: rgba(254,225,64,0.3);
}
.price-header { margin-bottom: 16px; }
.price-name { font-size: 22px; font-weight: 700; }
.price-tag { font-size: 13px; color: rgba(255,255,255,0.5); margin-top: 4px; }
.price-num { display: flex; align-items: baseline; margin-bottom: 8px; }
.price-currency { font-size: 20px; color: rgba(255,255,255,0.7); margin-right: 2px; }
.price-value {
  font-size: 56px; font-weight: 800; line-height: 1;
  background: linear-gradient(135deg, #6366f1, #ec4899);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.price-cycle { font-size: 16px; color: rgba(255,255,255,0.5); margin-left: 4px; }
.price-ratio { font-size: 12px; color: rgba(255,255,255,0.5); margin-bottom: 24px; padding-bottom: 24px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.price-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
.price-list li { font-size: 13px; color: rgba(255,255,255,0.8); }
.price-list li.dim { color: rgba(255,255,255,0.3); }
.pricing-foot { text-align: center; margin-top: 48px; color: rgba(255,255,255,0.5); font-size: 14px; }

/* ============= 客户案例 ============= */
.cases-section { background: linear-gradient(180deg, transparent, rgba(236,72,153,0.03)); }
.cases-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.case-card {
  background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px; padding: 32px; backdrop-filter: blur(20px);
  position: relative; transition: all 0.3s;
}
.case-card:hover { border-color: rgba(99,102,241,0.3); transform: translateY(-2px); }
.case-quote {
  font-size: 18px; line-height: 1.6; color: rgba(255,255,255,0.9);
  margin-bottom: 24px; padding-left: 16px; border-left: 3px solid #6366f1;
  font-style: italic;
}
.case-author { display: flex; align-items: center; gap: 12px; }
.case-avatar {
  width: 48px; height: 48px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 18px;
}
.case-name { font-weight: 600; font-size: 15px; }
.case-meta { font-size: 12px; color: rgba(255,255,255,0.5); }
.case-result {
  position: absolute; top: 24px; right: 24px;
  padding: 4px 12px; border-radius: 99px;
  background: linear-gradient(135deg, #38ef7d, #11998e);
  color: #fff; font-size: 12px; font-weight: 700;
}

/* ============= 平台支持 ============= */
.platforms-section { padding: 60px 0; }
.platforms-grid {
  display: grid; grid-template-columns: repeat(8, 1fr); gap: 16px;
  background: rgba(255,255,255,0.02); padding: 32px; border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.05);
}
.plat-card {
  padding: 24px 8px; text-align: center;
  background: rgba(255,255,255,0.03); border-radius: 12px;
  font-size: 14px; color: rgba(255,255,255,0.8);
  transition: all 0.2s; cursor: default;
}
.plat-card:hover { background: rgba(99,102,241,0.1); transform: translateY(-2px); }

/* ============= FAQ ============= */
.faq-section { padding-bottom: 100px; }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px; padding: 20px 24px; backdrop-filter: blur(20px);
  transition: all 0.2s;
}
.faq-item:hover { border-color: rgba(99,102,241,0.3); }
.faq-q { font-weight: 600; color: #fff; margin-bottom: 8px; font-size: 15px; }
.faq-a { color: rgba(255,255,255,0.7); font-size: 14px; line-height: 1.7; }

/* ============= CTA ============= */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, rgba(99,102,241,0.15), rgba(139,92,246,0.15), rgba(236,72,153,0.15));
  text-align: center; position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; top: 50%; left: 50%;
  width: 800px; height: 800px; border-radius: 50%;
  background: radial-gradient(circle, rgba(99,102,241,0.2), transparent 70%);
  transform: translate(-50%, -50%); filter: blur(80px);
}
.cta-title {
  font-size: 48px; font-weight: 800; margin-bottom: 16px;
  background: linear-gradient(180deg, #fff, rgba(255,255,255,0.7));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; position: relative; z-index: 1;
}
.cta-sub { font-size: 18px; color: rgba(255,255,255,0.7); margin-bottom: 40px; position: relative; z-index: 1; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; position: relative; z-index: 1; flex-wrap: wrap; }

/* ============= Footer ============= */
.footer {
  background: rgba(0,0,0,0.3); padding: 64px 0 24px;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-col h4 { color: #fff; margin-bottom: 16px; font-size: 14px; }
.footer-col a {
  display: block; color: rgba(255,255,255,0.6); font-size: 13px;
  margin-bottom: 10px; transition: color 0.2s;
}
.footer-col a:hover { color: #fff; }
.footer-logo { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.footer-desc { color: rgba(255,255,255,0.5); font-size: 13px; margin-bottom: 16px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  padding: 6px 12px; background: rgba(255,255,255,0.05);
  border-radius: 6px; font-size: 12px; margin: 0;
}
.footer-bottom {
  text-align: center; padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.05);
  color: rgba(255,255,255,0.4); font-size: 12px;
}
.footer-bottom a { color: #a5b4fc; }

/* ============= 响应式 ============= */
@media (max-width: 1024px) {
  .hero-title { font-size: 56px; }
  .section-title { font-size: 32px; }
  .ai-grid, .feature-grid, .pricing-grid, .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: 1fr; }
  .platforms-grid { grid-template-columns: repeat(4, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-menu { display: none; }
}
@media (max-width: 640px) {
  .hero { padding: 100px 16px 60px; }
  .hero-title { font-size: 40px; }
  .hero-sub { font-size: 15px; }
  .section-title { font-size: 26px; }
  .ai-grid, .feature-grid, .pricing-grid, .stats-grid { grid-template-columns: 1fr; }
  .platforms-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-title { font-size: 32px; }
  .price-card.popular { transform: none; }
  .dash-mock { grid-template-columns: 1fr; }
  .dash-sidebar { display: none; }
  .dash-stat-row { grid-template-columns: repeat(2, 1fr); }
}

/* ============= 资讯详情弹窗 ============= */
.news-modal { position: fixed; inset: 0; z-index: 9999; display: flex; align-items: flex-start; justify-content: center; padding: 5vh 16px; }
.news-modal-overlay { position: absolute; inset: 0; background: rgba(10,14,39,0.85); backdrop-filter: blur(8px); }
.news-modal-dialog { position: relative; width: 100%; max-width: 800px; max-height: 88vh; background: linear-gradient(180deg, #0a0e27 0%, #11173a 100%); border: 1px solid rgba(255,255,255,0.1); border-radius: 16px; box-shadow: 0 40px 80px rgba(0,0,0,0.6); overflow: hidden; display: flex; flex-direction: column; }
.news-modal-close { position: absolute; top: 12px; right: 12px; width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15); color: #fff; font-size: 22px; cursor: pointer; display: flex; align-items: center; justify-content: center; z-index: 10; line-height: 1; transition: all 0.2s; }
.news-modal-close:hover { background: rgba(255,255,255,0.2); transform: scale(1.1); }
.news-modal-content { padding: 32px 40px; max-height: 75vh; overflow-y: auto; background: linear-gradient(180deg, rgba(99,102,241,0.04), transparent); }
.news-modal-cover { font-size: 80px; text-align: center; margin-bottom: 16px; }
.news-modal-meta { display: flex; gap: 12px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
.news-modal-meta .news-cat { display: inline-block; padding: 2px 10px; border-radius: 99px; font-size: 11px; font-weight: 600; background: rgba(99,102,241,0.1); color: #a5b4fc; border: 1px solid rgba(99,102,241,0.2); }
.news-modal-meta .news-author, .news-modal-meta .news-views { font-size: 12px; color: rgba(255,255,255,0.5); }
.news-modal-title { font-size: 28px; font-weight: 800; line-height: 1.3; margin-bottom: 12px; background: linear-gradient(180deg, #fff, rgba(255,255,255,0.8)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.news-modal-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.news-modal-tags span { padding: 2px 10px; background: rgba(99,102,241,0.1); border-radius: 99px; font-size: 11px; color: #a5b4fc; }
.news-modal-summary { padding: 16px 20px; background: rgba(255,255,255,0.03); border-left: 3px solid #6366f1; border-radius: 6px; font-size: 14px; color: rgba(255,255,255,0.85); line-height: 1.7; margin-bottom: 24px; }
.news-modal-body { color: rgba(255,255,255,0.85); line-height: 1.85; font-size: 15px; }
.news-modal-body h1 { font-size: 24px; font-weight: 800; margin: 24px 0 16px; color: #fff; }
.news-modal-body h2 { font-size: 20px; font-weight: 700; margin: 22px 0 12px; color: #fff; border-left: 3px solid #6366f1; padding-left: 12px; }
.news-modal-body h3 { font-size: 17px; font-weight: 600; margin: 18px 0 10px; color: #fff; }
.news-modal-body p { margin: 12px 0; }
.news-modal-body ul, .news-modal-body ol { margin: 12px 0; padding-left: 24px; }
.news-modal-body li { margin: 6px 0; }
.news-modal-body strong { color: #fee140; }
.news-modal-body code { background: rgba(99,102,241,0.1); padding: 1px 6px; border-radius: 3px; font-family: monospace; color: #a5b4fc; }
.news-modal-body table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 13px; }
.news-modal-body th { background: rgba(99,102,241,0.15); padding: 8px 12px; text-align: left; color: #a5b4fc; }
.news-modal-body td { padding: 8px 12px; border-bottom: 1px solid rgba(255,255,255,0.05); }
.news-modal-body blockquote { border-left: 3px solid #6366f1; padding-left: 16px; color: rgba(255,255,255,0.7); margin: 16px 0; font-style: italic; }
.news-modal-footer { margin-top: 32px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.1); display: flex; gap: 12px; justify-content: flex-end; }

.news-cover-img { width:100%; height:100%; object-fit:cover; display:block; }
.news-modal-cover img { width:100%; max-height:300px; object-fit:cover; border-radius:8px; }

.dash-page { animation: fadeIn .3s ease; }
.dash-page-title { font-size:14px; font-weight:700; color:#fff; margin-bottom:12px; padding:8px 0; border-bottom:1px solid rgba(255,255,255,.1); }
.dash-grid { display:grid; grid-template-columns:repeat(3, 1fr); gap:8px; margin-bottom:12px; }
.dash-tile { background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.1); border-radius:6px; padding:12px 8px; text-align:center; font-size:12px; color:rgba(255,255,255,.85); }
.dash-list { margin-bottom:12px; }
.dash-list-item { display:flex; justify-content:space-between; padding:8px 0; font-size:12px; color:rgba(255,255,255,.75); border-bottom:1px dashed rgba(255,255,255,.06); }
.t-success { color:#43e97b; font-weight:600; }
@keyframes fadeIn { from { opacity:0; transform:translateY(4px); } to { opacity:1; transform:translateY(0); } }
.dash-menu-item { cursor:pointer; user-select:none; outline:none; }
.dash-menu-item:focus { background:rgba(139,92,240,.15); }
.dash-menu-item:hover { background:rgba(255,255,255,.04); }