/* ============================================================
 * components.css —— 可复用组件（按钮/卡片/产品卡/新闻卡/场景/统计等）
 * 苹果极简风：无渐变光晕、白底大圆角、靠留白与排版表达层级
 * ============================================================ */

/* ---------- 按钮（苹果胶囊） ---------- */
.btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;padding:14px 28px;border-radius:980px;font-size:16px;font-weight:500;transition:.2s;border:none}
.primary{background:var(--blue);color:#fff}
.primary:hover{background:var(--blue-h)}
.outline{border:1px solid var(--line);color:var(--text);background:var(--card)}
.outline:hover{border-color:#c9c9ce}
.link{color:var(--blue);font-size:16px;font-weight:500;background:none;padding:0;border:none}
.link:hover{text-decoration:underline}
.dark .btn.outline{border:1px solid #424245;color:#fff;background:transparent}
.dark .btn.outline:hover{border-color:#86868b}

/* ---------- Hero 光晕（苹果风不需要，隐藏） ---------- */
.orb{display:none}

/* ---------- 通用卡片 ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--card);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow);transition:.25s}
.card:hover{transform:translateY(-3px);box-shadow:0 10px 34px rgba(0,0,0,.08)}
.card h3{font-size:23px;margin:16px 0 8px;letter-spacing:-.01em}
.card p{line-height:1.7;color:var(--text2);font-size:15px;margin:0}
.tech-card .icon{height:80px;width:80px;display:grid;place-items:center;border-radius:20px;background:transparent;color:var(--blue);font-size:44px;line-height:1}
.tech-card .icon svg{display:block}
.flow{margin-top:34px;color:var(--text2);font-size:13px;text-align:center;letter-spacing:.14em}

/* ---------- 产品卡 ---------- */
.products{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.product{overflow:hidden;background:var(--card);border-radius:22px;box-shadow:var(--shadow)}
.visual{height:280px;position:relative;overflow:hidden;background:#1c1c1e;display:flex;align-items:center;justify-content:center;color:#c9c9ce}
.visual .ph{position:relative;z-index:1;letter-spacing:.16em;font-size:12px;color:var(--text2)}
.visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1}
.product-body{padding:28px}
.status{font-size:12px;color:var(--blue);background:#1c1c1e;border-radius:980px;padding:5px 12px;display:inline-block;font-weight:600}
.product h3{font-size:27px;margin:16px 0 6px;letter-spacing:-.02em}
.product h4{margin:0;color:var(--text2);font-weight:400;font-size:15px}
.product p{color:var(--text2);font-size:15px;line-height:1.7}

/* ---------- 解决方案场景卡 ---------- */
.scene{min-height:210px;display:flex;flex-direction:column;justify-content:flex-end;padding:30px;border-radius:22px;background:var(--card);box-shadow:var(--shadow);color:var(--text)}
.scene h3{margin:0 0 8px;font-size:23px;letter-spacing:-.01em}
.scene p{color:var(--text2);font-size:15px;line-height:1.7;margin:0}

/* ---------- 案例 ---------- */
.case{display:grid;grid-template-columns:1fr 1fr;overflow:hidden;border-radius:24px;background:var(--card);box-shadow:var(--shadow)}
.case-visual{min-height:320px;background:#1c1c1e;display:grid;place-items:center;color:#c9c9ce;padding:20px}
.case-text{padding:56px;display:flex;flex-direction:column;justify-content:center}
.case-text h3{font-size:30px;margin:16px 0;letter-spacing:-.02em}
.case-text p{color:var(--text2);font-size:16px;line-height:1.85}

/* ---------- 关于我们：统计 ---------- */
.statline{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stat{border-top:1px solid var(--line);padding:26px 4px}
.stat strong{display:block;color:var(--text);font-size:34px;letter-spacing:-.02em;font-weight:700}
.stat p{font-size:15px;color:var(--text2);line-height:1.7;margin:8px 0 0}
.dark .stat{border-color:#424245}
.dark .stat strong{color:#fff}
.dark .stat p{color:#c9c9ce}

/* ---------- 新闻卡 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news{border-radius:22px;overflow:hidden;background:var(--card);box-shadow:var(--shadow);cursor:pointer;transition:.25s}
.news:hover{transform:translateY(-3px);box-shadow:0 10px 34px rgba(0,0,0,.08)}
.news-thumb{height:170px;display:grid;place-items:center;background:#1c1c1e;color:#c9c9ce;letter-spacing:.12em;font-size:12px;position:relative;overflow:hidden}
.news-thumb .ph{position:relative;z-index:1;color:var(--text2)}
.news-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.news-body{padding:24px}
.tag{font-size:12px;color:var(--blue);font-weight:600}
.date{font-size:13px;color:var(--text2);margin-left:12px}
.news h3{font-size:20px;line-height:1.4;margin:12px 0 8px;letter-spacing:-.01em}
.news p{line-height:1.7;color:var(--text2);font-size:14px;margin:0}
.filter{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.filter button{background:var(--card);border:1px solid var(--line);border-radius:980px;padding:9px 18px;cursor:pointer;color:var(--text2);transition:.2s}
.filter button.active,.filter button:hover{background:var(--blue);border-color:var(--blue);color:#fff}
.empty{display:none;padding:15px;color:var(--text2)}

/* ---------- 文章详情 ---------- */
.detail{max-width:780px;margin:0 auto;padding:60px 0 100px}
.detail h2{font-size:40px;line-height:1.3;letter-spacing:-.02em}
.detail .meta{font-size:14px;color:var(--text2);margin:10px 0 24px}
.detail .body{font-size:17px;line-height:1.9;color:var(--text)}
.detail .cover{margin-bottom:24px;border-radius:18px;overflow:hidden;max-height:420px}
.detail .cover img{width:100%;height:100%;object-fit:cover}
.detail .ph{background:var(--card);border:1px dashed var(--line);border-radius:12px;padding:28px;color:var(--text2)}

/* ---------- CTA 联系我们（苹果黑底大区） ---------- */
.cta{background:#000;color:#fff;padding:110px 0;text-align:center}
.cta .wrap{display:flex;flex-direction:column;align-items:center;gap:14px}
.cta h2{font-size:clamp(30px,4.5vw,52px);margin:0;letter-spacing:-.02em}
.cta p{color:#c9c9ce;line-height:1.7;margin:0;max-width:560px}
.contact-line{margin-top:14px;display:flex;flex-wrap:wrap;gap:16px;justify-content:center;color:#d2d2d7;font-size:15px}

/* ---------- 首页 · 产品摘要卡 ---------- */
.p-list{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.p-teaser{background:var(--card);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);display:block;transition:.25s}
.p-teaser:hover{transform:translateY(-3px);box-shadow:0 10px 34px rgba(0,0,0,.08)}
.p-teaser .tag{display:inline-block;margin-bottom:10px}
.p-teaser h3{font-size:19px;margin:0 0 8px;letter-spacing:-.01em}
.p-teaser p{font-size:13px;color:var(--text2);line-height:1.6;margin:0}

/* ---------- 产品页 · 详情展开 ---------- */
.p-detail{margin-top:14px;padding-top:16px;border-top:1px solid var(--line);color:var(--text2);font-size:15px;line-height:1.9;display:none}
.p-detail.open{display:block}

/* ---------- 关于页 · 简介（神经元视频背景） ---------- */
.intro{font-size:17px;line-height:1.9;color:var(--text);max-width:760px;margin:0 0 44px}
.intro-vid{position:relative;overflow:hidden;background:#02040a}
.intro-vid .iv-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.intro-vid .iv-shade{position:absolute;inset:0;z-index:1;
  background:radial-gradient(ellipse at center,rgba(2,4,10,.46) 0%,rgba(2,4,10,.80) 85%)}
.intro-vid .wrap{position:relative;z-index:2}
.intro-vid .intro{margin-bottom:0;text-shadow:0 1px 10px rgba(0,6,18,.75)}
/* 逐字缓入：每个字从透明+轻微虚化缓慢浮现（.char-reveal 容器或新闻横幅等时序场景通用） */
.ch{opacity:0;filter:blur(6px);transform:translateY(6px);
  transition:opacity .95s cubic-bezier(.22,.61,.36,1),filter .95s cubic-bezier(.22,.61,.36,1),transform .95s cubic-bezier(.22,.61,.36,1)}
.ch.in{opacity:1;filter:blur(0);transform:none}
.ch.out{opacity:0;filter:blur(8px);transform:translateY(-6px);
  transition:opacity .8s ease,filter .8s ease,transform .8s ease}

/* ---------- 联系页 · 信息卡与表单 ---------- */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:44px}
.contact-card{background:var(--card);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.contact-card h3{font-size:18px;margin:0 0 12px}
.contact-card p{font-size:16px;color:var(--text);margin:0}
.form{max-width:640px;margin:0 auto;background:var(--card);border-radius:20px;padding:34px;display:grid;gap:18px;box-shadow:var(--shadow)}
.form label{font-size:15px;font-weight:600}
.form input,.form textarea{width:100%;padding:14px 16px;border:1px solid var(--line);border-radius:12px;font:inherit;font-size:16px;background:var(--bg);color:var(--text)}
.form textarea{min-height:140px;resize:vertical}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(0,113,227,.12)}
.form-tip{font-size:13px;color:var(--text2);margin-top:6px}

/* ---------- 页脚 ---------- */
.footer{background:#0a0a0a;border-top:1px solid var(--line);color:var(--text2);padding:56px 0 40px}
.footer .wrap{display:flex;justify-content:space-between;gap:30px}
.footer a:hover{color:var(--blue)}
.foot-brand{font-size:20px;color:var(--text);font-weight:700}
.foot-brand span{color:var(--text2)!important;font-size:12px}
.foot-meta{font-size:13px;line-height:2}
.note{font-size:13px;line-height:1.7;margin-top:14px}

/* ---------- 首页宣传视频（自动循环播放，替代原图片轮播） ---------- */
.hero-video{background:#000;line-height:0}
.hero-video video{width:100%;height:auto;max-height:100vh;object-fit:cover;display:block}

/* ---------- 首页 · 大图 + 文字产品卡 ---------- */
.p-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.p-card{display:block;background:var(--card);border-radius:22px;overflow:hidden;box-shadow:var(--shadow);transition:.25s}
.p-card:hover{transform:translateY(-3px);box-shadow:0 10px 34px rgba(0,0,0,.08)}
.p-visual{height:250px;overflow:hidden;background:#1c1c1e;display:grid;place-items:center;color:#c9c9ce}
.p-visual .ph{color:var(--text2);font-size:12px;letter-spacing:.14em}
.p-visual img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.p-card:hover .p-visual img{transform:scale(1.04)}
.p-body{padding:26px}
.p-body h3{font-size:22px;margin:10px 0 6px;letter-spacing:-.01em}
.p-body p{color:var(--text2);font-size:14px;line-height:1.7;margin:0}
@media(max-width:900px){.p-grid{grid-template-columns:1fr 1fr}}
@media(max-width:680px){.p-grid{grid-template-columns:1fr}}

/* ---------- 首页 · 苹果式整版竖排产品大区 ---------- */
.showcase{display:block}
.sc-block{width:100%;padding:100px 0 70px;text-align:center;overflow:hidden}
.sc-block.light{background:#0d0d0f;color:#f5f5f7}
.sc-block.dark{background:#000;color:#fff}
.sc-inner{max-width:1000px;margin:0 auto;padding:0 24px}
.sc-kicker{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:#d9d9df;font-weight:600}
.hl-intro .sc-kicker{color:#e8e8ed;font-size:15px}
.sc-block h2{font-size:54px;line-height:1.08;font-weight:600;letter-spacing:-.02em;margin:14px 0 12px}
.sc-sub{font-size:21px;line-height:1.5;max-width:660px;margin:0 auto;opacity:.85}
.sc-fig{max-width:860px;margin:46px auto 0}
.sc-fig img{width:100%;height:auto;display:block;border-radius:18px;box-shadow:0 30px 70px rgba(0,0,0,.28)}
.sc-cta{margin:42px 0 0}
.sc-block.dark .btn.primary{background:#0071e3;color:#fff;border-color:#0071e3}
.sc-block.dark .btn.primary:hover{background:#0a84ff;color:#fff;border-color:#0a84ff}
@media(max-width:900px){.sc-block h2{font-size:38px}.sc-sub{font-size:17px}.sc-block{padding:72px 0 50px}}
@media(max-width:680px){.sc-block h2{font-size:30px}.sc-sub{font-size:16px}.sc-fig img{border-radius:14px}}

/* ---------- 首页 · 天鹅湖苹果式多角度深度介绍 ---------- */
.hl{background:#000}
.hl-intro{text-align:center;padding:130px 24px 60px;background:#0d0d0f}
.hl-intro .sc-kicker{color:#e8e8ed}
.hl-intro h2{font-size:76px;line-height:1.03;font-weight:600;letter-spacing:-.02em;margin:16px 0 12px;color:var(--text)}
.hl-tagline{font-size:30px;color:var(--text);margin:0 0 12px;font-weight:500}
.hl-desc{font-size:20px;color:var(--text2);max-width:660px;margin:0 auto;line-height:1.7}
.hl-shot{max-width:100%;margin:0;padding:0;text-align:center}
.hl-shot .hl-body{max-width:840px;margin:0 auto;padding:100px 24px 44px}
.hl-shot.alt{background:#0d0d0f}
.hl-kicker{font-size:14px;letter-spacing:.14em;color:var(--text2);font-weight:600}
.hl-body h3{font-size:52px;font-weight:600;letter-spacing:-.02em;margin:18px 0 14px;color:var(--text);line-height:1.1}
.hl-sub{font-size:26px;font-weight:600;color:var(--text);margin:0 0 16px;letter-spacing:.01em}
.hl-body p{font-size:20px;line-height:1.7;color:var(--text2);max-width:680px;margin:0 auto}
.hl-fig{width:100%}
.hl-fig img{width:100%;height:auto;display:block;border-radius:0}

/* ---------- 天鹅湖屏内苹果式横向画廊：当前图居中，相邻图紧贴露出，无箭头 ---------- */
.hl-gallery{position:relative;background:#000}
/* 关键几何：滑块取内容盒全宽（flex-basis:100%），此时“内边距 = 滑块余宽的一半”恒成立，
   首尾两张在任何视口宽度下都精确居中；两侧内边距即相邻图的露出宽度 */
.hl-gslides{display:flex;gap:20px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  scroll-snap-type:x mandatory;padding:44px 14% 6px}
.hl-gslides::-webkit-scrollbar{display:none}
.hl-gslide{flex:0 0 100%;min-width:100%;box-sizing:border-box;scroll-snap-align:center;display:flex;justify-content:center}
/* 每张截图装进平板机身里，撑满滑块（不再用固定 760px 上限，否则宽屏下相邻图几乎不露出） */
.hl-tab{margin:0;width:100%;background:#101013;border-radius:26px;padding:16px;
  border:1px solid rgba(255,255,255,.22);box-shadow:0 18px 52px rgba(0,0,0,.62),0 0 0 1px rgba(0,0,0,.8),0 0 40px rgba(90,150,255,.10);position:relative}
.hl-tab::before{content:'';position:absolute;top:7px;left:50%;transform:translateX(-50%);width:7px;height:7px;border-radius:50%;background:#33333a}
.hl-tab img{width:100%;height:auto;display:block;border-radius:6px;background:#000}
/* 分页：长条进度点 + 圆形播放/暂停按钮 */
.hl-pager{display:flex;align-items:center;justify-content:center;gap:14px;padding:14px 0 28px}
.hl-gdots{display:flex;align-items:center;gap:8px}
.hl-gdots button{width:8px;height:8px;border-radius:4px;border:none;background:rgba(255,255,255,.35);
  cursor:pointer;padding:0;position:relative;overflow:hidden;transition:width .35s ease,background .2s}
.hl-gdots button.active{width:26px;background:rgba(255,255,255,.42)}
.hl-gdots button::after{content:'';position:absolute;inset:0;background:#fff;transform:scaleX(0);transform-origin:0 50%}
.hl-gdots button.run::after{animation:hlProg 5s linear forwards}
@keyframes hlProg{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.hl-gplay{width:30px;height:30px;border-radius:50%;border:none;background:rgba(255,255,255,.16);color:#fff;
  cursor:pointer;font-size:10px;line-height:1;display:flex;align-items:center;justify-content:center;transition:background .2s;padding:0}
.hl-gplay:hover{background:rgba(255,255,255,.32)}
@media(max-width:760px){.hl-gslides{padding:28px 6% 6px}.hl-tab{border-radius:16px;padding:10px}.hl-tab img{border-radius:4px}}
.hl-others{background:#000;padding:80px 24px 96px;text-align:center}
.hl-others-head{font-size:28px;font-weight:600;letter-spacing:-.01em;margin-bottom:36px;color:var(--text)}
.hl-others-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1080px;margin:0 auto 44px}
.hl-other{display:block;background:#1c1c1e;border-radius:20px;overflow:hidden;text-align:left;transition:.25s;color:inherit}
.hl-other:hover{transform:translateY(-3px);box-shadow:0 12px 34px rgba(0,0,0,.08)}
.hl-other-fig img{width:100%;display:block;height:180px;object-fit:cover}
/* 产品图为独立主体（如魔笛头盔）时完整呈现、不放大裁切 */
.hl-other-fig.fit-c img{object-fit:contain;background:#161618}
.hl-other h4{font-size:19px;margin:18px 20px 6px;color:var(--text);font-weight:600}
.hl-other p{font-size:13px;color:var(--text2);margin:0 20px 22px;line-height:1.6}
@media(max-width:900px){
  .hl-intro h2{font-size:46px}.hl-tagline{font-size:22px}.hl-desc{font-size:16px}
  .hl-shot .hl-body{padding:64px 20px 28px}
  .hl-body h3{font-size:32px}.hl-body p{font-size:16px}
  .hl-others-grid{grid-template-columns:1fr}
}

/* ---------- 脑机连接开场特效（首页，全屏 Canvas 粒子动画） ---------- */
/* 开场动画：只占首屏 Hero 这一块（不是全屏固定遮罩），页面可正常下滑浏览其它内容 */
#boot{position:absolute;top:0;left:0;width:100%;height:100vh;z-index:2;background:#000;overflow:hidden;
  transition:opacity .9s ease;touch-action:pan-y}
#boot.hide{opacity:0;pointer-events:none}
#boot.hide.fast{transition-duration:.32s}
#bootCanvas{position:absolute;inset:0;width:100%;height:100%;display:block}
#boot3d{position:absolute;inset:0;z-index:1;display:none}
#boot3d canvas{display:block}

/* ===== 开场动画装饰层（暗角 / 扫描线 / 四角框，复刻参考风格） ===== */
#boot .boot-vig{position:absolute;inset:0;z-index:2;pointer-events:none;
  background:
    radial-gradient(ellipse 70% 66% at 50% 50%, rgba(0,0,0,0) 26%, rgba(2,4,9,.55) 78%, rgba(1,2,6,.92) 100%),
    linear-gradient(180deg, rgba(0,0,0,.42) 0%, rgba(0,0,0,0) 22%, rgba(0,0,0,0) 76%, rgba(0,0,0,.5) 100%);}
#boot .boot-scan{position:absolute;inset:0;z-index:2;pointer-events:none;opacity:.5;
  background:repeating-linear-gradient(180deg, rgba(150,220,255,.045) 0 1px, rgba(0,0,0,0) 1px 3px);
  mix-blend-mode:screen;}
#boot .boot-frame{position:absolute;inset:18px;z-index:2;pointer-events:none;
  border:1px solid rgba(110,200,240,.10);}
#boot .boot-frame i{position:absolute;width:16px;height:16px;border:1px solid rgba(120,225,255,.5);}
#boot .boot-frame i:nth-child(1){left:-1px;top:-1px;border-right:0;border-bottom:0;}
#boot .boot-frame i:nth-child(2){right:-1px;top:-1px;border-left:0;border-bottom:0;}
#boot .boot-frame i:nth-child(3){left:-1px;bottom:-1px;border-right:0;border-top:0;}
#boot .boot-frame i:nth-child(4){right:-1px;bottom:-1px;border-left:0;border-top:0;}

/* ===== 苹果式滚动显现：滚入视口时渐显（IntersectionObserver 判定 + CSS 过渡，全浏览器一致） ===== */
.rv, .rv-late, .rv-img{
  transition: opacity .9s cubic-bezier(.22,1,.36,1),
              transform .9s cubic-bezier(.22,1,.36,1),
              filter .9s cubic-bezier(.22,1,.36,1);
}
.rv.pre, .rv-late.pre{ opacity:0; transform:translateY(34px); filter:blur(5px); }
.rv-img.pre{ opacity:0; transform:scale(1.06); }
.rv.in, .rv-late.in, .rv-img.in{ opacity:1; transform:none; filter:none; }
@media (prefers-reduced-motion: reduce){
  .rv.pre, .rv-late.pre, .rv-img.pre{ opacity:1; transform:none; filter:none; transition:none; }
}
.boot-core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:2;opacity:0;transition:opacity 1.6s ease}
.boot-core.lit{opacity:1}
.boot-core svg{display:block}
.boot-core.lit svg{animation:coreRise 1.4s ease}
.boot-core svg path{filter:drop-shadow(0 0 14px rgba(10,132,255,.9))}
@keyframes coreRise{0%{transform:scale(.55)}100%{transform:scale(1)}}

/* Hero 文字：连接完成后浮现 */
.hero-copy{opacity:0;transform:translateY(14px);transition:opacity 1.6s cubic-bezier(.22,.61,.36,1) .45s,transform 1.6s cubic-bezier(.22,.61,.36,1) .45s}
.hero-copy.show{opacity:1;transform:none}

/* ---------- 核心技术 · 特性标签 ---------- */
.tech-feats{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.tech-feats span{font-size:12px;color:var(--text2);border:1px solid var(--line);border-radius:980px;padding:6px 14px;letter-spacing:.02em;line-height:1.4}

/* ---------- 产品中心 · 规格速览 ---------- */
.specs{display:block;margin:20px 0 0;border-top:1px solid var(--line);padding-top:6px}
.spec{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid var(--line)}
.spec dt{color:var(--text2);font-size:14px}
.spec dd{margin:0;color:var(--text);font-size:15px;font-weight:500;text-align:right}

/* ---------- 解决方案 · 应用点 ---------- */
.points{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:10px}
.points li{color:var(--text2);font-size:14px;line-height:1.6;padding-left:18px;position:relative}
.points li::before{content:'';position:absolute;left:0;top:8px;width:7px;height:7px;border-radius:50%;background:var(--blue)}

/* ---------- 产品页 · 苹果式左右交错大图卡 ---------- */
.products{display:grid;grid-template-columns:1fr;gap:36px}
.product{display:grid;grid-template-columns:1.08fr 1fr;overflow:hidden;background:var(--card);border-radius:26px;box-shadow:var(--shadow)}
.product .visual{height:auto;min-height:360px;background:#141416}
.product .visual img{object-fit:cover}
.product-body{padding:46px 48px;display:flex;flex-direction:column;justify-content:center}
.product-body h3{font-size:34px}
.product-body h4{font-size:17px}
.product.alt .visual{order:2}
.product.alt .product-body{order:1}
@media(max-width:900px){
  .product{grid-template-columns:1fr}
  .product .visual{min-height:230px;order:0}
  .product-body{order:0;padding:28px}
  .product.alt .visual{order:0}
  .product.alt .product-body{order:0}
}

/* ---------- 关于我们 · 价值观 ---------- */
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.value{background:var(--card);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
.v-num{font-size:13px;color:var(--blue);letter-spacing:.12em;font-weight:700}
.value h3{font-size:22px;margin:14px 0 8px;letter-spacing:-.01em}
.value p{color:var(--text2);font-size:15px;line-height:1.7;margin:0}
@media(max-width:900px){.values{grid-template-columns:1fr 1fr}}
@media(max-width:680px){.values{grid-template-columns:1fr}}

/* ---------- 关于我们 · 发展历程时间轴 ---------- */
.timeline{max-width:780px;margin:0 auto}
.mile{display:grid;grid-template-columns:26px 1fr;gap:0;position:relative;padding:0 0 36px}
.mile::before{content:'';position:absolute;left:12px;top:8px;bottom:-2px;width:2px;background:var(--line)}
.mile:last-child{padding-bottom:4px}
.mile:last-child::before{display:none}
.mile-dot{width:26px;display:grid;place-items:center}
.mile-dot::before{content:'';width:12px;height:12px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 5px rgba(10,132,255,.16)}
.mile-body{padding:0 0 0 22px}
.mile-phase{font-size:12px;color:var(--blue);letter-spacing:.12em;font-weight:700}
.mile-body h3{font-size:22px;margin:8px 0 6px;letter-spacing:-.01em}
.mile-body p{color:var(--text2);font-size:15px;line-height:1.7;margin:0}

/* ---------- 核心技术 · 信号链路 ---------- */
.pipe{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:22px;align-items:center;max-width:1120px;margin:0 auto}
.pipe-step{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:34px;text-align:left}
.pipe-step .pipe-icon{font-size:26px;color:var(--blue)}
.pipe-step h3{font-size:22px;margin:16px 0 10px;letter-spacing:-.01em}
.pipe-step p{color:var(--text2);font-size:15px;line-height:1.7;margin:0}
.pipe-arrow{color:var(--blue);font-size:28px;text-align:center}
@media(max-width:900px){
  .pipe{grid-template-columns:1fr;gap:12px;max-width:560px}
  .pipe-arrow{transform:rotate(90deg);justify-self:center}
}

/* ---------- 解决方案 · 引言 ---------- */
.quote{max-width:760px;margin:0 auto;text-align:center}
.quote p{font-size:clamp(22px,3vw,30px);line-height:1.7;color:#d2d2d7;font-weight:500;margin:0;letter-spacing:-.01em}

/* ---------- 脑机连接开场特效（首页，全屏 Canvas 粒子动画） ---------- */
/* 开场动画：只占首屏 Hero 这一块（不是全屏固定遮罩），页面可正常下滑浏览其它内容 */
#boot{position:absolute;top:0;left:0;width:100%;height:100vh;z-index:2;background:#000;overflow:hidden;
  transition:opacity .9s ease;touch-action:pan-y}
#boot.hide{opacity:0;pointer-events:none}
#boot.hide.fast{transition-duration:.32s}
#bootCanvas{position:absolute;inset:0;width:100%;height:100%;display:block}
#boot3d{position:absolute;inset:0;z-index:1;display:none}
#boot3d canvas{display:block}

/* ===== 开场动画装饰层（暗角 / 扫描线 / 四角框，复刻参考风格） ===== */
#boot .boot-vig{position:absolute;inset:0;z-index:2;pointer-events:none;
  background:
    radial-gradient(ellipse 70% 66% at 50% 50%, rgba(0,0,0,0) 26%, rgba(2,4,9,.55) 78%, rgba(1,2,6,.92) 100%),
    linear-gradient(180deg, rgba(0,0,0,.42) 0%, rgba(0,0,0,0) 22%, rgba(0,0,0,0) 76%, rgba(0,0,0,.5) 100%);}
#boot .boot-scan{position:absolute;inset:0;z-index:2;pointer-events:none;opacity:.5;
  background:repeating-linear-gradient(180deg, rgba(150,220,255,.045) 0 1px, rgba(0,0,0,0) 1px 3px);
  mix-blend-mode:screen;}
#boot .boot-frame{position:absolute;inset:18px;z-index:2;pointer-events:none;
  border:1px solid rgba(110,200,240,.10);}
#boot .boot-frame i{position:absolute;width:16px;height:16px;border:1px solid rgba(120,225,255,.5);}
#boot .boot-frame i:nth-child(1){left:-1px;top:-1px;border-right:0;border-bottom:0;}
#boot .boot-frame i:nth-child(2){right:-1px;top:-1px;border-left:0;border-bottom:0;}
#boot .boot-frame i:nth-child(3){left:-1px;bottom:-1px;border-right:0;border-top:0;}
#boot .boot-frame i:nth-child(4){right:-1px;bottom:-1px;border-left:0;border-top:0;}

/* ===== 苹果式滚动显现：滚入视口时渐显（IntersectionObserver 判定 + CSS 过渡，全浏览器一致） ===== */
.rv, .rv-late, .rv-img{
  transition: opacity .9s cubic-bezier(.22,1,.36,1),
              transform .9s cubic-bezier(.22,1,.36,1),
              filter .9s cubic-bezier(.22,1,.36,1);
}
.rv.pre, .rv-late.pre{ opacity:0; transform:translateY(34px); filter:blur(5px); }
.rv-img.pre{ opacity:0; transform:scale(1.06); }
.rv.in, .rv-late.in, .rv-img.in{ opacity:1; transform:none; filter:none; }
@media (prefers-reduced-motion: reduce){
  .rv.pre, .rv-late.pre, .rv-img.pre{ opacity:1; transform:none; filter:none; transition:none; }
}
.boot-core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:2;opacity:0;transition:opacity 1.6s ease}
.boot-core.lit{opacity:1}
.boot-core svg{display:block}
.boot-core.lit svg{animation:coreRise 1.4s ease}
.boot-core svg path{filter:drop-shadow(0 0 14px rgba(10,132,255,.9))}
@keyframes coreRise{0%{transform:scale(.55)}100%{transform:scale(1)}}

/* Hero 文字：连接完成后浮现 */
.hero-copy{opacity:0;transform:translateY(14px);transition:opacity 1.6s cubic-bezier(.22,.61,.36,1) .45s,transform 1.6s cubic-bezier(.22,.61,.36,1) .45s}
.hero-copy.show{opacity:1;transform:none}

/* ---------- 核心技术 · 特性标签 ---------- */
.tech-feats{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.tech-feats span{font-size:12px;color:var(--text2);border:1px solid var(--line);border-radius:980px;padding:6px 14px;letter-spacing:.02em;line-height:1.4}

/* ---------- 产品中心 · 规格速览 ---------- */
.specs{display:block;margin:20px 0 0;border-top:1px solid var(--line);padding-top:6px}
.spec{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid var(--line)}
.spec dt{color:var(--text2);font-size:14px}
.spec dd{margin:0;color:var(--text);font-size:15px;font-weight:500;text-align:right}

/* ---------- 解决方案 · 应用点 ---------- */
.points{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:10px}
.points li{color:var(--text2);font-size:14px;line-height:1.6;padding-left:18px;position:relative}
.points li::before{content:'';position:absolute;left:0;top:8px;width:7px;height:7px;border-radius:50%;background:var(--blue)}

/* ---------- 产品页 · 苹果式左右交错大图卡 ---------- */
.products{display:grid;grid-template-columns:1fr;gap:36px}
.product{display:grid;grid-template-columns:1.08fr 1fr;overflow:hidden;background:var(--card);border-radius:26px;box-shadow:var(--shadow)}
.product .visual{height:auto;min-height:360px;background:#141416}
.product .visual img{object-fit:cover}
.product-body{padding:46px 48px;display:flex;flex-direction:column;justify-content:center}
.product-body h3{font-size:34px}
.product-body h4{font-size:17px}
.product.alt .visual{order:2}
.product.alt .product-body{order:1}
@media(max-width:900px){
  .product{grid-template-columns:1fr}
  .product .visual{min-height:230px;order:0}
  .product-body{order:0;padding:28px}
  .product.alt .visual{order:0}
  .product.alt .product-body{order:0}
}

/* ---------- 关于我们 · 价值观 ---------- */
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.value{background:var(--card);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
.v-num{font-size:13px;color:var(--blue);letter-spacing:.12em;font-weight:700}
.value h3{font-size:22px;margin:14px 0 8px;letter-spacing:-.01em}
.value p{color:var(--text2);font-size:15px;line-height:1.7;margin:0}
@media(max-width:900px){.values{grid-template-columns:1fr 1fr}}
@media(max-width:680px){.values{grid-template-columns:1fr}}

/* ---------- 关于我们 · 发展历程时间轴 ---------- */
.timeline{max-width:780px;margin:0 auto}
.mile{display:grid;grid-template-columns:26px 1fr;gap:0;position:relative;padding:0 0 36px}
.mile::before{content:'';position:absolute;left:12px;top:8px;bottom:-2px;width:2px;background:var(--line)}
.mile:last-child{padding-bottom:4px}
.mile:last-child::before{display:none}
.mile-dot{width:26px;display:grid;place-items:center}
.mile-dot::before{content:'';width:12px;height:12px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 5px rgba(10,132,255,.16)}
.mile-body{padding:0 0 0 22px}
.mile-phase{font-size:12px;color:var(--blue);letter-spacing:.12em;font-weight:700}
.mile-body h3{font-size:22px;margin:8px 0 6px;letter-spacing:-.01em}
.mile-body p{color:var(--text2);font-size:15px;line-height:1.7;margin:0}

/* ---------- 核心技术 · 信号链路 ---------- */
.pipe{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:22px;align-items:center;max-width:1120px;margin:0 auto}
.pipe-step{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:34px;text-align:left}
.pipe-step .pipe-icon{font-size:26px;color:var(--blue)}
.pipe-step h3{font-size:22px;margin:16px 0 10px;letter-spacing:-.01em}
.pipe-step p{color:var(--text2);font-size:15px;line-height:1.7;margin:0}
.pipe-arrow{color:var(--blue);font-size:28px;text-align:center}
@media(max-width:900px){
  .pipe{grid-template-columns:1fr;gap:12px;max-width:560px}
  .pipe-arrow{transform:rotate(90deg);justify-self:center}
}

/* ---------- 解决方案 · 引言 ---------- */
.quote{max-width:760px;margin:0 auto;text-align:center}
.quote p{font-size:clamp(22px,3vw,30px);line-height:1.7;color:#d2d2d7;font-weight:500;margin:0;letter-spacing:-.01em}



/* ---------- 页脚备案号链接 ---------- */
.footer .icp{color:inherit;text-decoration:none;border-bottom:1px solid rgba(133,185,215,.35);transition:.2s}
.footer .icp:hover{color:var(--blue);border-color:var(--blue)}

/* ---------- 新闻卡片 · 公众号原文提示 ---------- */
.news .wxs{display:block;margin-top:10px;font-size:12px;letter-spacing:.05em;color:#9db1cc}
.news .wxs em{font-style:normal;color:var(--blue)}
.news:hover .wxs em{transform:translateX(2px)}

/* ============================================================
 * 核心技术页 · 视频横幅 + 科研创新 + 合作单位（参考版式）
 * ============================================================ */

/* ---------- 顶部横幅：神经元视频背景 + 居中文案（字号与其他子页 page-head 统一） ---------- */
.tech-hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#02040c;text-align:center;padding:120px 24px}
.tech-hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.tech-hero-overlay{position:absolute;inset:0;background:radial-gradient(ellipse at center,rgba(2,4,12,.30) 0%,rgba(2,4,12,.74) 80%);z-index:1}
.tech-hero-copy{position:relative;z-index:2;max-width:900px}
.tech-hero-copy h1{color:#fff;font-size:clamp(40px,5vw,60px);letter-spacing:-.02em;font-weight:700;margin:14px 0;text-shadow:0 2px 14px rgba(0,10,30,.6)}
.tech-hero-lines p{color:#e9eff9;font-size:18px;line-height:1.8;margin:0;text-shadow:0 1px 8px rgba(0,10,30,.85)}
.tech-hero-lines p:last-child{margin-top:28px}

/* ---------- 浅色区块（科研创新 / 合作单位） ---------- */
.lt-eyebrow{text-align:center;color:#6e6e73;margin-bottom:12px}
.light-zone{background:#f5f5f7;color:#1d1d1f}
.light-title{text-align:center;font-size:clamp(30px,3.6vw,44px);letter-spacing:.08em;font-weight:700;margin:0 0 56px;color:#1d1d1f}

/* 科研创新 2×2 媒体格 */
.innov-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;max-width:980px;margin:0 auto}
.innov-tile{border-radius:14px;overflow:hidden;background:#e8e8ec;aspect-ratio:16/10;box-shadow:0 4px 18px rgba(0,0,0,.08)}
.innov-tile img,.innov-tile video{width:100%;height:100%;object-fit:cover;display:block}
.innov-tile.is-video{border:2px solid #2f7fd1;box-shadow:0 0 0 4px rgba(47,127,209,.16),0 6px 24px rgba(0,0,0,.12)}

/* 合作单位 */
.partners-zone{padding-bottom:130px}
.partners-text{text-align:center;color:#1d1d1f;font-size:21px;line-height:1.9;max-width:920px;margin:0 auto 60px}
.partners-grid{max-width:1080px;margin:0 auto}
.partners-row-wide{display:flex;justify-content:center;margin-bottom:16px}
.partners-row-wide .partner-logo{width:min(560px,100%)}
.partners-row-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.partner-logo{background:#fff;border-radius:8px;padding:12px 16px;display:flex;align-items:center;justify-content:center;box-shadow:0 3px 12px rgba(0,0,0,.08);min-height:92px;transition:.25s}
.partner-logo:hover{transform:translateY(-3px);box-shadow:0 8px 22px rgba(0,0,0,.13)}
.partner-logo img{max-height:86px;width:auto;max-width:100%;object-fit:contain}
@media(max-width:760px){
  .tech-hero{min-height:88vh;padding:80px 20px}
  .tech-hero-lines p{font-size:16px}
  .innov-grid{grid-template-columns:1fr}
  .partners-row-grid{grid-template-columns:1fr 1fr}
}

/* ---------- 科研创新 · 论文卡片（2×2） ---------- */
.innov-note{text-align:center;color:#1d1d1f;font-size:19px;line-height:1.9;max-width:820px;margin:-34px auto 46px}
.pub-card{display:flex;flex-direction:column;justify-content:space-between;background:#fff;border:1px solid rgba(0,0,0,.06);border-radius:14px;padding:26px 26px 22px;min-height:230px;box-shadow:0 4px 18px rgba(0,0,0,.06);transition:.28s;color:#1d1d1f}
a.pub-card:focus,a.pub-row:focus{outline:none}
.pub-card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(0,0,0,.12)}
.pub-card.featured{border:1px solid rgba(0,0,0,.06)}
.pub-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.pub-j{font-size:12.5px;font-weight:700;letter-spacing:.06em;color:#1d1d1f;text-transform:none}
.pub-y{font-size:12.5px;color:#8a8a90;letter-spacing:.04em}
.pub-card h3{font-size:17px;line-height:1.55;font-weight:600;margin:0 0 18px;letter-spacing:-.005em;display:-webkit-box;-webkit-line-clamp:5;-webkit-box-orient:vertical;overflow:hidden}
.pub-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:#8a8a90}
.pub-flag{font-size:11.5px;color:#2f7fd1;background:rgba(47,127,209,.1);border-radius:99px;padding:3px 10px;font-weight:600}
.pub-go{color:#2f7fd1;font-weight:600}
.pub-card:hover .pub-go{text-decoration:underline}

/* ---------- 其他论文列表 ---------- */
.pub-more{margin-top:72px;border-top:1px solid rgba(0,0,0,.08);padding-top:46px}
.pub-more-head{display:flex;align-items:baseline;justify-content:center;gap:12px;margin-bottom:28px}
.pub-more-head h3{font-size:22px;margin:0;letter-spacing:.04em;color:#1d1d1f}
.pub-count{font-size:17px;color:#1d1d1f;font-weight:500}
.pub-list{max-width:980px;margin:0 auto;display:flex;flex-direction:column}
.pub-list.collapsed .pub-row:nth-child(n+11){display:none}
.pub-row{display:grid;grid-template-columns:64px 1fr 150px 22px;align-items:center;gap:14px;padding:15px 12px;border-bottom:1px solid rgba(0,0,0,.07);color:#1d1d1f;transition:.2s;border-radius:6px}
a.pub-row:hover{background:#fff;box-shadow:0 3px 14px rgba(0,0,0,.07)}
.pub-row .pub-year{font-size:13px;color:#8a8a90;font-variant-numeric:tabular-nums}
.pub-row .pub-title{font-size:14.5px;line-height:1.6}
.pub-row .pub-j{font-size:12px;color:#6b6b70;font-weight:600;text-align:right}
.pub-row .pub-arrow{color:#b0b0b6;font-size:13px;text-align:right}
a.pub-row:hover .pub-arrow{color:#2f7fd1}
.pub-toggle{display:block;margin:34px auto 0;background:#2f7fd1;border:1px solid #2f7fd1;color:#fff;border-radius:99px;padding:12px 30px;font-size:15px;font-weight:600;transition:.22s;cursor:pointer}
.pub-toggle:hover{background:#256ab5;border-color:#256ab5}
@media(max-width:760px){
  .innov-note{margin:-20px auto 34px}
  .pub-row{grid-template-columns:52px 1fr;gap:8px 12px}
  .pub-row .pub-j{grid-column:2;text-align:left}
  .pub-row .pub-arrow{display:none}
}

/* ---------- 首页开场 · 神经元动画视频（替代原 3D 导线动画） ---------- */
#boot video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;background:#000;
  opacity:0;transition:opacity .9s ease}
/* 品牌字完全消散后才让视频画面淡入显现，此前保持纯黑背景 */
#boot.playing video{opacity:1}
/* 播完定格：boot 降层让文字浮现在定格画面上，并加一层轻遮罩保证文字可读性 */
#boot.ended{z-index:0;pointer-events:none}
#boot.ended::after{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at center,rgba(0,0,0,.16) 0%,rgba(0,0,0,.44) 100%)}

/* ---------- 子页 · 全屏视频横幅（与核心技术页统一） ---------- */
.page-head.ph-media{position:relative;overflow:hidden;min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:120px 24px;background:#05080f}
.page-head .ph-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.page-head .ph-shade{position:absolute;inset:0;z-index:1;background:radial-gradient(ellipse at center,rgba(4,7,14,.38) 0%,rgba(4,7,14,.72) 100%)}
.page-head.ph-media .wrap{position:relative;z-index:2;margin:0;width:auto;max-width:900px}
.page-head.ph-media h1{margin:20px 0 18px}
.page-head.ph-media p{margin:0 auto}
@media(max-width:760px){.page-head.ph-media{min-height:88vh;padding:90px 20px}}

/* 合作单位简介：支持 \n 换行 */
.partners-text{white-space:pre-line}

/* ---------- 开场品牌字：全大写加粗两行，逐字乱码解码显现 → 停留 → 逐字消散（参考 hashgraphvc） ---------- */
#boot .boot-word{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding-top:calc(35vh - 65px);z-index:3;pointer-events:none}
#boot .boot-word .boot-line{display:flex;justify-content:center}
#boot .boot-word span{font-family:'Montserrat','Noto Sans SC',system-ui,Arial,sans-serif;
  font-size:clamp(30px,3.8vw,54px);font-weight:900;letter-spacing:.1em;color:#f2f6ff;
  opacity:0;filter:blur(8px);transform:translateY(6px);
  transition:opacity .8s ease,filter .8s ease,transform .8s ease;
  text-shadow:0 0 24px rgba(130,185,255,.3)}
#boot .boot-word span.in{opacity:1;filter:blur(0);transform:none}
#boot .boot-word span.out{opacity:0;filter:blur(8px);transform:translateY(-6px);
  transition:opacity .9s ease,filter .9s ease,transform .9s ease}
/* 品牌字下方：隐约白线紧贴品牌字；英文副标语固定在首屏最底部（整体随品牌字淡入/消散） */
#boot .boot-sub{position:absolute;left:0;right:0;bottom:4vh;text-align:center;opacity:0;transform:translateY(12px);filter:blur(8px);
  transition:opacity 1.4s ease,transform 1.4s ease,filter 1.4s ease}
#boot .boot-sub.in{opacity:1;transform:none;filter:none}
#boot .boot-sub.out{opacity:0;filter:blur(8px);transform:translateY(-8px);
  transition:opacity .9s ease,filter .9s ease,transform .9s ease}
/* 隐约可见的白线：紧贴品牌字下方，两端渐隐，整体低透明度 */
#boot .boot-hr{width:min(460px,64vw);height:1px;margin:44px auto 0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.28) 50%,transparent)}
/* 副标语：比品牌字暗一档的冷灰蓝，钉在首屏底部 */
#boot .boot-sub-text{font-family:'Montserrat','Noto Sans SC',system-ui,Arial,sans-serif;
  font-size:clamp(11px,1.1vw,14px);font-weight:500;letter-spacing:.38em;text-indent:.38em;
  color:rgba(172,190,214,.55);line-height:2.2;text-transform:uppercase}