/* BAP Business Suite AI Inside - 全站共享样式（Apple 风格·极简优雅） */
:root{
  --bg:#ffffff;
  --bg-2:#f5f5f7;          /* Apple 标志性浅灰 */
  --bg-card:#ffffff;
  --bg-glass:rgba(255,255,255,.8);
  --ink:#1d1d1f;           /* Apple 标题黑 */
  --ink-2:#424245;
  --primary:#0071e3;       /* Apple 蓝 */
  --primary-light:#0077ed;
  --primary-2:#006edc;
  --accent:#0071e3;
  --text:#1d1d1f;
  --text-dim:#86868b;      /* Apple 副文字灰 */
  --text-strong:#1d1d1f;
  --border:rgba(0,0,0,.08);
  --border-strong:rgba(0,0,0,.12);
  --shadow:none;
  --shadow-hover:0 4px 16px rgba(0,0,0,.06);
  --radius:18px;
  --radius-sm:12px;
  --radius-pill:980px;
  --maxw:1280px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scrollbar-width:thin;scrollbar-color:var(--primary) transparent}
body{
  font-family:"PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
/* 隐藏滚动条但保留滚动功能（符合大屏无滚动条偏好） */
body::-webkit-scrollbar{width:6px;height:6px}
body::-webkit-scrollbar-thumb{background:var(--primary);border-radius:3px}
body::-webkit-scrollbar-track{background:transparent}
a{color:inherit;text-decoration:none;transition:color .25s}
a:hover{color:var(--accent)}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 48px}

/* ============ 顶部通知横幅 ============ */
.top-banner{
  position:fixed;top:0;left:0;right:0;z-index:1001;
  height:36px;
  display:flex;align-items:center;justify-content:center;gap:12px;
  background:linear-gradient(90deg,#f5f5f7,#ebebef);
  color:var(--ink-2);
  font-size:13px;font-weight:400;letter-spacing:.3px;
  border-bottom:1px solid rgba(0,0,0,.05);
}
.top-banner-text{opacity:.9}
.top-banner-close{
  background:none;border:none;color:rgba(0,0,0,.35);
  font-size:18px;line-height:1;cursor:pointer;padding:2px 6px;
  transition:color .2s;
}
.top-banner-close:hover{color:var(--ink)}

/* ============ 顶部导航 ============ */
/* ============ 顶部通知栏 ============ */
.top-notice-bar{
  position:fixed;top:0;left:0;right:0;z-index:1100;
  background:#f5f5f7;
  color:var(--ink);
  font-size:14px;
  border-bottom:1px solid rgba(0,0,0,.06);
  transition:all .3s;
}
.top-notice-inner{
  max-width:var(--maxw);margin:0 auto;
  display:flex;align-items:center;gap:10px;
  padding:8px 48px;
}
.top-notice-icon{flex-shrink:0;font-size:16px}
.top-notice-content{
  flex:1;min-width:0;text-align:center;line-height:1.5;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  color:var(--ink);
}
.top-notice-link{color:var(--primary);text-decoration:underline;text-underline-offset:2px}
.top-notice-link:hover{color:var(--primary-2)}
.top-notice-close{
  flex-shrink:0;width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(0,0,0,.06);border:none;border-radius:50%;
  color:var(--text-dim);font-size:16px;cursor:pointer;transition:background .25s,color .25s;
}
.top-notice-close:hover{background:rgba(0,0,0,.12);color:var(--ink)}
body.has-notice .topbar{top:40px}
body.has-notice .nav-toggle{top:48px}
@media(max-width:768px){
  .top-notice-inner{padding:8px 20px}
  .top-notice-content{font-size:13px}
}

.topbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,.72);
  backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid rgba(0,0,0,.06);
  transition:all .3s;
}
.topbar.scrolled{background:rgba(255,255,255,.9);box-shadow:0 1px 0 rgba(0,0,0,.06)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:18px;color:var(--text-strong)}
.brand-logo{
  width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  background:transparent;
  overflow:hidden;
}
.brand-logo img{width:100%;height:100%;object-fit:contain;display:block}
.brand-name{display:flex;flex-direction:column;line-height:1.1}
.brand-name small{font-size:11px;color:var(--text-dim);font-weight:400;letter-spacing:1px}
.nav-menu{display:flex;align-items:center;gap:4px;list-style:none}
.nav-menu a{
  padding:8px 16px;border-radius:8px;font-size:14px;color:var(--text);
  position:relative;
}
.nav-menu a:hover{color:var(--text-strong)}
.nav-menu a.active{color:var(--primary)}
.nav-cta{
  background:var(--primary);color:#fff!important;
  padding:8px 18px!important;border-radius:var(--radius-pill);font-weight:500;font-size:14px;
  transition:background .2s;
}
.nav-cta:hover{background:var(--primary-light)}
.nav-toggle{display:none;background:none;border:none;color:var(--text);font-size:22px;cursor:pointer}

/* ============ Hero ============ */
.hero{
  position:relative;
  min-height:100vh;
  padding:80px 0 60px;
  display:flex;align-items:center;
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background:linear-gradient(160deg,#f5f5f7 0%,#ebebef 50%,#e0e0e6 100%);
}
.hero-bg::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 30% 20%,rgba(0,113,227,.04),transparent 50%),
    radial-gradient(circle at 70% 80%,rgba(0,113,227,.03),transparent 50%);
}
.hero-inner{position:relative;z-index:1;width:100%;display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
.hero-content{max-width:560px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:var(--bg-2);
  border:none;
  color:var(--primary);font-size:13px;font-weight:500;
  margin-bottom:20px;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);animation:pulse 2s infinite}
.hero h1{
  font-size:46px;line-height:1.1;font-weight:600;color:var(--text-strong);margin-bottom:14px;letter-spacing:-.5px;
}
.hero h1 .grad,.hero h1 .grad-fin{color:var(--primary)}
.hero h1 .hero-product{
  font-size:20px;font-weight:500;color:var(--text-dim);
  letter-spacing:0;
  display:block;margin-bottom:6px;
}
.hero .lead{
  font-size:18px;color:var(--ink-2);margin-bottom:32px;line-height:1.6;
}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px}
.hero-visual{position:relative;display:flex;justify-content:center;width:100%;min-width:0}

/* Hero 视频 · 无背景 */
.phone-scene{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:center;
}
.phone-frame{
  position:relative;
  width:210px;
  aspect-ratio:9/19.5;
  background:#1a1a1c;
  padding:6px;
  border-radius:24px;
  box-shadow:0 20px 50px rgba(0,0,0,.25),0 6px 14px rgba(0,0,0,.12),inset 0 0 0 1.5px rgba(255,255,255,.08);
  z-index:2;
}
.phone-island{
  position:absolute;
  top:8px;
  left:50%;
  transform:translateX(-50%);
  width:60px;
  height:16px;
  background:#000;
  border-radius:10px;
  z-index:4;
}
.hero-video{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center top;
  border-radius:20px;
  background:#000;
  clip-path:inset(5% 0 0 round 20px);
  display:block;
}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-pill);font-weight:400;font-size:15px;
  cursor:pointer;border:none;transition:all .2s;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-light);color:#fff}
.btn-outline{background:transparent;color:var(--primary);border:none}
.btn-outline:hover{color:var(--primary-2);text-decoration:underline}
.hero-cta .btn{padding:8px 20px;font-size:14px}

/* 关键数据条 */
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  padding:0;
  background:transparent;
  box-shadow:none;
  border:none;
  backdrop-filter:none;
}
.stat-item{
  text-align:left;
  padding:0;
}
.stat-item + .stat-item::before{display:none}
.stat-num{
  font-size:22px;font-weight:500;line-height:1.2;
  color:var(--ink-2);
  letter-spacing:0;
}
.stat-num::after{display:none}
.stat-label{
  font-size:12px;color:var(--text-dim);margin-top:4px;
  font-weight:400;letter-spacing:0;
}

/* ============ Section通用 ============ */
.section{padding:96px 0;position:relative}
.section-head{text-align:center;max-width:760px;margin:0 auto 56px}
.section:nth-child(even){background:var(--bg-2)}
.section-tag{
  display:none;padding:4px 14px;border-radius:var(--radius-pill);
  background:transparent;border:none;
  color:var(--primary);font-size:13px;font-weight:500;letter-spacing:0;
  margin-bottom:14px;
}
.section-title{font-size:40px;font-weight:600;color:var(--text-strong);margin-bottom:16px;letter-spacing:-.5px}
.section-title .grad{color:var(--primary)}
.section-sub{font-size:17px;color:var(--text-dim);font-weight:400}

/* ============ 业财实时融合 ============ */
.bf-grid{display:grid;grid-template-columns:1fr;gap:48px;align-items:center}
.bf-points{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.bf-point{
  display:flex;flex-direction:column;gap:12px;padding:28px 24px;border-radius:16px;
  background:var(--bg-card);border:1px solid var(--border);
  transition:all .3s;
}
.bf-point:hover{border-color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow)}
.bf-point-num{
  font-size:36px;font-weight:600;line-height:1;color:var(--ink);
  flex-shrink:0;
}
.bf-point-body h4{font-size:17px;color:var(--text-strong);margin-bottom:8px;font-weight:600}
.bf-point-body p{font-size:14px;color:var(--text-dim);line-height:1.6}

/* 对比卡 */
.compare{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px;
}
.compare-card{
  padding:28px;border-radius:var(--radius);
  border:none;
}
.compare-card.old{background:var(--bg-2)}
.compare-card.new{background:var(--primary);color:#fff}
.compare-card h4{font-size:15px;margin-bottom:14px;display:flex;align-items:center;gap:8px;font-weight:600}
.compare-card.old h4{color:var(--text-dim)}
.compare-card.new h4{color:#fff}
.compare-card ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.compare-card li{font-size:13px;color:var(--text-dim);padding-left:18px;position:relative}
.compare-card.new li{color:rgba(255,255,255,.8)}
.compare-card.old li::before{content:"—";position:absolute;left:0;color:var(--text-dim)}
.compare-card.new li::before{content:"·";position:absolute;left:0;color:#fff}

/* ============ AI能力 ============ */
.ai-section{background:var(--bg-2)}
.ai-loop{
  display:flex;align-items:center;justify-content:center;gap:8px;
  margin-bottom:48px;flex-wrap:wrap;
}
.ai-step{
  display:flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--radius-pill);
  background:var(--bg-card);border:none;
  font-size:14px;font-weight:400;
}
.ai-step .num{
  width:22px;height:22px;border-radius:50%;
  background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:600;
}
.ai-arrow{color:var(--text-dim);font-size:18px}
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{
  padding:32px;border-radius:var(--radius);
  background:var(--bg-card);border:none;
  transition:all .35s;position:relative;overflow:hidden;
}
.ai-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.ai-card-icon{
  width:48px;height:48px;border-radius:12px;
  background:var(--bg-2);
  border:none;
  display:flex;align-items:center;justify-content:center;
  font-size:24px;margin-bottom:18px;
}
.ai-card h3{font-size:19px;color:var(--text-strong);margin-bottom:10px;font-weight:600}
.ai-card p{font-size:14px;color:var(--text-dim);margin-bottom:14px;line-height:1.6}
.ai-card .badge{
  display:inline-block;padding:3px 10px;border-radius:var(--radius-pill);
  background:var(--bg-2);color:var(--primary);
  font-size:12px;font-weight:500;
}

/* ============ 产品模块 ============ */
.module-tabs{
  display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:36px;
}
.module-tab{
  padding:8px 18px;border-radius:var(--radius-pill);
  background:var(--bg-card);border:none;
  color:var(--text-dim);font-size:14px;cursor:pointer;transition:all .2s;
}
.module-tab:hover{color:var(--text)}
.module-tab.active{background:var(--ink);color:#fff}
.module-panel{display:none}
.module-panel.active{display:block;animation:fadeIn .4s}
.module-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.module-item{
  padding:20px;border-radius:12px;
  background:var(--bg-card);border:1px solid var(--border);
  transition:all .25s;
}
.module-item:hover{border-color:var(--ink);transform:translateY(-2px)}
.module-item h4{font-size:15px;color:var(--text-strong);margin-bottom:8px;display:flex;align-items:center;gap:8px}
.module-item h4 .ic{color:var(--accent)}
.module-item p{font-size:13px;color:var(--text-dim);line-height:1.6}

/* ============ 案例 ============ */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{
  padding:0;border-radius:var(--radius);
  background:var(--bg-card);border:none;
  overflow:hidden;transition:all .3s;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.case-banner{
  padding:24px;background:var(--bg-2);
  border-bottom:none;
}
.case-industry{font-size:12px;color:var(--primary);font-weight:500;letter-spacing:0}
.case-name{font-size:19px;color:var(--text-strong);font-weight:600;margin-top:4px}
.case-body{padding:24px}
.case-pain{font-size:13px;color:var(--text-dim);margin-bottom:14px}
.case-pain strong{color:var(--text)}
.case-metrics{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:14px}
.case-metric{padding:12px;border-radius:var(--radius-sm);background:var(--bg-2);text-align:center}
.case-metric .v{font-size:20px;font-weight:600;color:var(--primary);line-height:1}
.case-metric .l{font-size:11px;color:var(--text-dim);margin-top:4px}
.case-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:400}

/* ============ 视频 ============ */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.video-card{
  border-radius:var(--radius);overflow:hidden;
  background:var(--bg-card);border:none;
  transition:all .3s;cursor:pointer;
}
.video-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.video-thumb{
  position:relative;aspect-ratio:16/9;
  background:linear-gradient(135deg,#f5f5f7 0%,#e0e0e6 100%);
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
}
.video-cover{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;z-index:0;
  opacity:0;transition:opacity .4s ease;
}
.video-cover.loaded{opacity:1}
.video-thumb::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at center,rgba(0,113,227,.08),transparent 70%);
}
.video-play{
  width:56px;height:56px;border-radius:50%;
  background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;z-index:1;transition:all .3s;
}
.video-card:hover .video-play{transform:scale(1.1);background:var(--primary-light)}
.video-tag{
  position:absolute;top:12px;left:12px;z-index:2;
  padding:3px 10px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.95);color:var(--text-strong);
  font-size:11px;font-weight:500;
  border:none;
}
.video-duration{
  position:absolute;bottom:12px;right:12px;z-index:2;
  padding:3px 8px;border-radius:6px;
  background:rgba(0,0,0,.7);color:#fff;font-size:11px;
}
.video-info{padding:16px 20px}
.video-title{font-size:15px;color:var(--text-strong);font-weight:600;margin-bottom:4px;line-height:1.4}
.video-desc{font-size:13px;color:var(--text-dim)}

/* 视频分类 */
.video-filter{
  display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:32px;
}
.video-filter button{
  padding:8px 18px;border-radius:20px;
  background:var(--bg-card);border:1px solid var(--border);
  color:var(--text-dim);font-size:13px;cursor:pointer;transition:all .25s;
}
.video-filter button.active{background:var(--ink);color:#fff;border-color:transparent}
.video-filter button:hover{color:var(--text)}

/* ============ 数据统计带 ============ */
.stats-band{
  padding:80px 0;
  background:var(--bg-2);color:var(--text);
}
.stats-band-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.stats-band-item{text-align:center}
.stats-band-num{
  font-size:56px;font-weight:600;line-height:1;color:var(--text-strong);
}
.stats-band-label{font-size:14px;color:var(--text-dim);margin-top:10px}

/* ============ FAQ ============ */
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  border:none;border-radius:var(--radius);
  background:var(--bg-card);overflow:hidden;transition:all .25s;
}
.faq-item.open{box-shadow:var(--shadow-hover)}
.faq-q{
  padding:18px 24px;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;
  font-weight:600;color:var(--text-strong);font-size:15px;
}
.faq-q .ic{
  width:24px;height:24px;border-radius:50%;
  background:rgba(15,23,42,.06);color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;transition:transform .3s;flex-shrink:0;margin-left:12px;
}
.faq-item.open .faq-q .ic{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s;
  padding:0 24px;color:var(--text-dim);font-size:14px;line-height:1.7;
}
.faq-item.open .faq-a{max-height:400px;padding:0 24px 20px}

/* ============ CTA ============ */
.cta-section{padding:80px 0}
.cta-box{
  position:relative;padding:64px 48px;border-radius:24px;
  background:var(--bg-2);color:var(--text);
  text-align:center;overflow:hidden;
}
.cta-box>*{position:relative;z-index:1}
.cta-box h2{font-size:36px;font-weight:600;color:var(--text-strong);margin-bottom:14px;letter-spacing:-.5px}
.cta-box p{font-size:17px;color:var(--text-dim);margin-bottom:28px;max-width:600px;margin-left:auto;margin-right:auto}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ============ 页脚 ============ */
.footer{background:var(--bg-2);border-top:none;padding:64px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-logo{width:42px;height:42px}
.footer-brand .brand-logo img{border-radius:0}
.footer-desc{font-size:13px;color:var(--text-dim);line-height:1.7;margin-bottom:16px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:8px;
  background:var(--bg-card);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;color:var(--text-dim);transition:all .25s;
}
.footer-social a:hover{background:var(--primary);color:#fff;border-color:transparent}
.footer-col h4{font-size:14px;color:var(--text-strong);margin-bottom:16px;font-weight:600;letter-spacing:.5px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13px;color:var(--text-dim)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  padding-top:24px;border-top:1px solid var(--border);
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  font-size:12px;color:var(--text-dim);
}
.footer-bottom-left{display:flex;flex-direction:row;align-items:center;gap:0;flex-wrap:wrap}
.footer-bottom-left > div:first-child{margin-right:12px}
.footer-icp{font-size:12px;color:var(--text-dim);letter-spacing:.2px;white-space:nowrap;padding-left:12px;border-left:1px solid var(--border)}
.footer-icp a{color:var(--text-dim);transition:color .2s}
.footer-icp a:hover{color:var(--accent)}
.footer-bottom-right{display:flex;flex-direction:column;align-items:flex-end;gap:10px;text-align:right}
.footer-langs{display:flex;align-items:center;gap:4px;flex-wrap:wrap;justify-content:flex-end}
.footer-lang-link{
  font-size:12px;color:var(--text-dim);padding:3px 10px;
  border-radius:var(--radius-pill);transition:all .2s;letter-spacing:.1px;
}
.footer-lang-link:hover{color:var(--primary);background:rgba(0,113,227,.06)}
.footer-lang-link.active{color:var(--primary);font-weight:500;background:rgba(0,113,227,.08)}

/* ============ 子页头部 ============ */
.page-hero{
  padding:140px 0 60px;position:relative;overflow:hidden;
  background:var(--bg-2);
  border-bottom:none;
}
.page-hero h1{font-size:48px;font-weight:600;color:var(--text-strong);margin-bottom:14px;letter-spacing:-.5px}
.page-hero h1 .grad{color:var(--primary)}
.breadcrumb{font-size:13px;color:var(--text-dim);margin-bottom:18px}
.breadcrumb a{color:var(--text-dim)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{margin:0 8px;color:var(--border-strong)}
.page-hero p{font-size:16px;color:var(--text-dim);max-width:760px}

/* ============ 动画 ============ */
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.3)}}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:translateY(0)}

/* ============ 响应式 ============ */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-content{max-width:none}
  .hero-visual{max-width:480px;margin:0 auto;grid-column:1/-1}
  .hero h1{font-size:42px}
  .hero-stats,.stats-band-grid{grid-template-columns:repeat(2,1fr)}
  .ai-grid,.case-grid,.video-grid{grid-template-columns:repeat(2,1fr)}
  .bf-grid{grid-template-columns:1fr}
  .bf-points{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .container{padding:0 20px}
  .nav-menu{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:rgba(255,255,255,.95);backdrop-filter:blur(20px);padding:16px;border-bottom:1px solid var(--border);gap:4px}
  .nav-menu.open{display:flex}
  .nav-menu a{padding:12px 16px;width:100%}
  .nav-toggle{display:block}
  .hero{padding:80px 0 60px;min-height:auto}
  .hero h1{font-size:30px}
  .hero .lead{font-size:15px}
  .section{padding:64px 0}
  .section-title{font-size:26px}
  .hero-stats,.stats-band-grid,.ai-grid,.case-grid,.video-grid,.compare,.module-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-box{padding:40px 24px}
  .cta-box h2{font-size:24px}
  .page-hero{padding:110px 0 40px}
  .page-hero h1{font-size:28px}
  .bf-point{flex-direction:column;gap:8px}
  .bf-point-num{font-size:28px}
}

/* ============ 实景背景图（Apple 风：纯色覆盖） ============ */
.photo{background-repeat:no-repeat;background-position:center;background-size:cover}
.photo-dim{background:var(--bg)}
.photo-page{background:var(--bg-2)}
.photo-cta{background:var(--bg-2)}
/* 各区块配图 */
.img-bizfin{--bgimg:url("../images/bg/bizfin.jpg")}
.img-ai{--bgimg:url("../images/bg/ai.jpg")}
.img-modules{--bgimg:url("../images/bg/modules.jpg")}
.img-industry{--bgimg:url("../images/bg/industry.jpg")}
.img-video{--bgimg:url("../images/bg/video.jpg")}
.img-stats{--bgimg:url("../images/bg/stats.jpg")}
.img-faq{--bgimg:url("../images/bg/faq.jpg")}
.img-cta{--bgimg:url("../images/bg/cta.jpg")}
.img-product-hero{--bgimg:url("../images/bg/product-hero.jpg")}
.img-positioning{--bgimg:url("../images/bg/positioning.jpg")}
.img-features{--bgimg:url("../images/bg/features.jpg")}
.img-arch{--bgimg:url("../images/bg/arch.jpg")}
.img-versions{--bgimg:url("../images/bg/versions.jpg")}
.img-deploy{--bgimg:url("../images/bg/deploy.jpg")}
.img-cases-hero{--bgimg:url("../images/bg/cases-hero.jpg")}
.img-aluminum{--bgimg:url("../images/bg/aluminum.jpg")}
.img-industries{--bgimg:url("../images/bg/industries.jpg")}
.img-value{--bgimg:url("../images/bg/value.jpg")}
.img-contact-hero{--bgimg:url("../images/bg/contact-hero.jpg")}
.img-demo{--bgimg:url("../images/bg/demo.jpg")}
.img-service{--bgimg:url("../images/bg/service.jpg")}
.img-partner{--bgimg:url("../images/bg/partner.jpg")}

/* ============ 用户认证 ============ */
.nav-auth{display:flex;align-items:center;gap:14px}
.auth-user-menu{position:relative;display:flex;align-items:center}
.auth-user-menu .user-dropdown{position:absolute;top:calc(100% + 12px);right:0;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:0 4px 24px rgba(0,0,0,.1);min-width:200px;padding:8px;opacity:0;visibility:hidden;transform:translateY(-8px);transition:all .25s;z-index:100}
.auth-user-menu:hover .user-dropdown,
.auth-user-menu.show .user-dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.user-dropdown-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;cursor:pointer;font-size:14px;color:var(--ink);transition:background .25s}
.user-dropdown-item:hover{background:var(--bg-2)}
.user-dropdown-divider{height:1px;background:var(--border);margin:8px 0}
.user-dropdown-user{padding:8px 12px;font-size:12px;color:var(--text-dim)}
.user-dropdown-user strong{display:block;color:var(--ink);font-size:14px;margin-bottom:2px}
.nav-auth-btns{display:flex;align-items:center;gap:12px}
.nav-avatar-icon{
  width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--ink);transition:all .25s;flex-shrink:0;
}
.nav-avatar-icon:hover{color:var(--primary);background:var(--bg-2)}
.nav-avatar-icon svg{display:block}
.user-avatar{width:26px;height:26px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;cursor:pointer;transition:transform .25s}
.user-avatar:hover{transform:scale(1.05)}
.user-avatar-placeholder{background:var(--bg-2);color:var(--text-dim);cursor:default}
.user-avatar-placeholder:hover{transform:none}
.auth-user-menu.logged-out .user-dropdown{display:none !important}

@media(max-width:768px){
  .nav-auth{gap:3px}
}

/* ============ 语言切换器 ============ */
.lang-switcher{position:relative;flex-shrink:0}
.lang-switch-btn{
  display:flex;align-items:center;gap:0;
  padding:1px 1px;border-radius:50%;
  background:var(--bg-2);color:var(--ink);
  font-size:11px;font-weight:500;cursor:pointer;
  border:none;transition:all .25s;white-space:nowrap;
}
.lang-switch-btn:hover{background:var(--bg-3,#e8e8ed)}
.lang-switch-btn .lang-arrow{font-size:8px;opacity:.5;transition:transform .25s;margin-right:1px}
.lang-switch-btn .lang-current-label{display:none}
.lang-btn-flag{
  width:20px;height:20px;border-radius:50%;
  display:inline-block;flex-shrink:0;margin:0;
  background-size:cover;background-position:center;background-repeat:no-repeat;
  box-shadow:0 0 0 1px var(--border);
}
.lang-btn-flag.flag-cn{background-image:url('../images/flags/cn.svg')}
.lang-btn-flag.flag-hk{background-image:url('../images/flags/hk.svg')}
.lang-btn-flag.flag-us{background-image:url('../images/flags/us.svg')}
.lang-btn-flag.flag-jp{background-image:url('../images/flags/jp.svg')}
.lang-btn-flag.flag-kr{background-image:url('../images/flags/kr.svg')}
.lang-btn-flag.flag-vn{background-image:url('../images/flags/vn.svg')}
.lang-dropdown{
  position:absolute;top:calc(100% + 4px);right:0;
  background:var(--bg);border:1px solid var(--border);
  border-radius:var(--radius-sm);
  box-shadow:0 4px 24px rgba(0,0,0,.12);
  min-width:150px;padding:4px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:all .25s;z-index:200;
}
.lang-dropdown.show{opacity:1;visibility:visible;transform:translateY(0)}
.lang-dropdown-item{
  display:flex;align-items:center;gap:7px;
  padding:5px 8px;border-radius:6px;
  cursor:pointer;font-size:11px;color:var(--ink);
  transition:background .25s;
}
.lang-dropdown-item:hover{background:var(--bg-2)}
.lang-dropdown-item.active{color:var(--primary);font-weight:600}
.lang-dropdown-item .lang-flag{
  width:18px;height:18px;border-radius:50%;
  display:inline-block;flex-shrink:0;
  background-size:cover;background-position:center;background-repeat:no-repeat;
  box-shadow:0 0 0 1px var(--border);
}
.lang-flag.flag-cn{background-image:url('../images/flags/cn.svg')}
.lang-flag.flag-hk{background-image:url('../images/flags/hk.svg')}
.lang-flag.flag-us{background-image:url('../images/flags/us.svg')}
.lang-flag.flag-jp{background-image:url('../images/flags/jp.svg')}
.lang-flag.flag-kr{background-image:url('../images/flags/kr.svg')}
.lang-flag.flag-vn{background-image:url('../images/flags/vn.svg')}
@media(max-width:768px){
  .lang-switch-btn{padding:1px 5px 1px 1px}
  .lang-btn-flag{width:16px;height:16px}
}

/* ============ 全局搜索 ============ */
.nav-search-btn{
  width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-2);color:var(--ink);cursor:pointer;
  border:none;transition:all .25s;flex-shrink:0;
  margin-right:8px;
}
.nav-search-btn:hover{background:var(--primary);color:#fff}
.nav-search-btn svg{width:18px;height:18px}

/* 搜索遮罩 */
.search-overlay{
  position:fixed;inset:0;z-index:9998;
  background:rgba(0,0,0,.45);
  backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;
  transition:all .25s;
}
.search-overlay.show{opacity:1;visibility:visible}

/* 搜索弹窗 */
.search-modal{
  position:fixed;top:15%;left:50%;
  transform:translateX(-50%) translateY(-20px);
  width:min(720px,calc(100vw - 32px));
  z-index:9999;
  background:var(--bg);
  border-radius:18px;
  box-shadow:0 20px 60px rgba(0,0,0,.2);
  opacity:0;visibility:hidden;
  transition:all .25s;
  overflow:hidden;
}
.search-modal.show{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}

.search-input-wrap{
  display:flex;align-items:center;gap:12px;
  padding:16px 20px;
  border-bottom:1px solid var(--border);
}
.search-input-wrap svg.search-icon{
  width:20px;height:20px;color:var(--text-dim);flex-shrink:0;
}
.search-input-wrap .search-input{
  flex:1;border:none;outline:none;
  background:transparent;font-size:17px;color:var(--ink);
  font-family:inherit;padding:4px 0;
}
.search-input-wrap .search-input::placeholder{color:var(--text-dim)}
.search-input-wrap .search-clear-btn{
  display:none;width:24px;height:24px;border-radius:50%;
  background:var(--bg-2);color:var(--text-dim);
  align-items:center;justify-content:center;
  cursor:pointer;font-size:14px;border:none;flex-shrink:0;
}
.search-input-wrap .search-clear-btn.show{display:flex}
.search-input-wrap .search-close-btn{
  width:32px;height:32px;border-radius:8px;
  background:var(--bg-2);color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;font-size:14px;border:none;flex-shrink:0;
}
.search-input-wrap .search-close-btn:hover{background:var(--primary);color:#fff}

/* 搜索结果 */
.search-results-wrap{
  max-height:calc(65vh - 60px);
  overflow-y:auto;padding:8px;
}
.search-results-wrap::-webkit-scrollbar{width:6px}
.search-results-wrap::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:3px}

.search-section-label{
  padding:12px 14px 6px;font-size:12px;font-weight:600;
  color:var(--text-dim);text-transform:uppercase;letter-spacing:.5px;
}

.search-result-item{
  display:flex;align-items:flex-start;gap:12px;
  padding:12px 14px;border-radius:12px;
  cursor:pointer;transition:all .2s;
}
.search-result-item:hover{background:var(--bg-2)}
.search-result-item .sr-icon{
  width:40px;height:40px;border-radius:10px;
  background:var(--bg-2);display:flex;align-items:center;justify-content:center;
  font-size:18px;flex-shrink:0;
}
.search-result-item[data-type="help"] .sr-icon{background:rgba(0,113,227,.1);color:var(--primary)}
.search-result-item[data-type="video"] .sr-icon{background:rgba(255,149,0,.1);color:#ff9500}
.search-result-item[data-type="download"] .sr-icon{background:rgba(48,209,88,.1);color:#30d158}
.search-result-item .sr-body{flex:1;min-width:0}
.search-result-item .sr-title{
  font-size:14px;font-weight:600;color:var(--text-strong);
  line-height:1.5;margin-bottom:4px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.search-result-item .sr-title mark{
  background:rgba(0,113,227,.15);color:var(--primary);
  padding:0 2px;border-radius:3px;
}
.search-result-item .sr-summary{
  font-size:12px;color:var(--text-dim);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.search-result-item .sr-meta{
  display:flex;align-items:center;gap:10px;
  font-size:11px;color:var(--text-dim);margin-top:6px;
}
.search-result-item .sr-tag{
  padding:2px 8px;border-radius:var(--radius-pill);
  background:var(--bg-2);color:var(--text-dim);font-weight:500;
}

/* 空态 */
.search-empty,
.search-loading{
  padding:48px 24px;text-align:center;color:var(--text-dim);
}
.search-empty .empty-icon,
.search-loading .loading-icon{font-size:36px;margin-bottom:12px}
.search-empty .empty-title,
.search-loading .loading-title{font-size:14px;font-weight:500;color:var(--ink-2);margin-bottom:4px}
.search-empty .empty-hint,
.search-loading .loading-hint{font-size:12px}

/* 底部操作栏 */
.search-kbd-tip{
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 16px;border-top:1px solid var(--border);
  background:var(--bg-2);font-size:11px;color:var(--text-dim);
  gap:12px;
}
.search-kbd-tip .search-count{
  font-size:11px;color:var(--text-dim);flex:1;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.search-kbd-tip .search-kbd-btns{
  display:flex;align-items:center;gap:6px;flex-shrink:0;
}
.search-kbd-tip .kbd-btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:28px;height:26px;padding:0 8px;
  background:var(--bg);border:1px solid var(--border);
  border-radius:8px;font-size:12px;font-family:inherit;
  color:var(--ink);cursor:pointer;transition:all .2s;
  line-height:1;
}
.search-kbd-tip .kbd-btn:hover{
  background:var(--primary);border-color:var(--primary);color:#fff;
}
.search-kbd-tip .kbd-btn:active{transform:scale(.95)}
.search-kbd-tip .kbd-btn.kbd-btn-text{font-size:11px;font-weight:500}

@media(max-width:768px){
  .search-modal{top:10%;border-radius:16px}
  .search-input-wrap{padding:14px 16px}
  .search-input-wrap .search-input{font-size:15px}
  .search-kbd-tip{display:none}
}