/* ============================================================
   VideoNote 官网首页样式（参照 bilinote 风格，内容原创）
   现代浅色 · 蓝色主调 · 大标题 · 圆角卡片
   ============================================================ */
:root{
  --brand:#2563eb; --brand-d:#1d4ed8; --brand-l:#eaf1ff;
  --grad:linear-gradient(90deg,#2563eb,#7c3aed);
  --bg:#f7f9fc; --card:#ffffff; --line:#e5eaf3;
  --txt:#0b1220; --txt2:#4b5876; --txt3:#8a97b5;
  --ok:#16a34a; --warn:#d97706;
  --radius:16px; --shadow:0 18px 50px -20px rgba(15,35,90,.18);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
/* 手机端禁用 smooth scroll + 抑制 scroll-anchoring（回滚元凶） */
@media(max-width:720px){
  html{scroll-behavior:auto}
  *{scroll-anchoring:none}
  /* 手机禁用高开销 filter/background-position 动画 */
  .bg-scene{animation:none!important}
  .hero h1 .grad{animation:none!important}
  .ai-pipeline .pstep .psep i{animation:none!important;display:none}
  .pipe::after{animation:none!important;display:none}
  /* 手机减少 Hero fadeUp 动画数量 */
  .hero>*{animation-duration:.5s!important}
  .hero>*:nth-child(n+3){animation-delay:.05s!important}
  /* 手机提示背景光斑禁用后补一个简洁纯色背景 */
  .hero{background:linear-gradient(180deg,#fbfcff 0%,#f2f6ff 55%,#f7f9fc 100%)}
  /* 手机禁用 backdrop-filter（高开销 GPU 操作） */
  .nav{background:rgba(255,255,255,.96);backdrop-filter:none!important}
  /* 手机禁用 content-visibility（导致滚动锚定异常） */
  section[id]{content-visibility:visible;contain-intrinsic-size:auto}
  /* 手机移除 will-change（GPU 层过多反而掉帧） */
  .pf-card,.feat,.ai-card,.pipe,.plan{will-change:auto!important}
  /* 手机禁用徽章弹出动画 */
  .sec-head .sec-kicker{animation:none!important}
}
/* 品牌 logo 图片：保留 aspect-ratio，尺寸由上层 / 内联属性控制 */
.brand-logo{object-fit:contain;aspect-ratio:1/1;max-width:100%;max-height:100%}
body{font-family:-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--txt);line-height:1.7;font-size:15px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1120px;margin:0 auto;padding:0 22px}

/* ===== 顶部导航 ===== */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-in{max-width:1120px;margin:0 auto;padding:0 22px;height:62px;display:flex;align-items:center;justify-content:space-between}
.logo{font-size:19px;font-weight:900;color:var(--txt);display:flex;align-items:center;gap:9px;letter-spacing:-.3px}
.logo .logo-mark{width:28px;height:28px;border-radius:8px;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;font-size:15px;font-weight:900;box-shadow:0 4px 10px -3px rgba(37,99,235,.5)}
.logo .logo-img{height:28px;width:auto;max-width:150px;object-fit:contain;display:block}
.nav-links{display:flex;align-items:center;gap:26px;font-size:14.5px;font-weight:500}
.nav-links a{color:var(--txt2)}
.nav-links a:hover{color:var(--brand)}
.nav-right{display:flex;align-items:center;gap:14px}
.nav-right .ghost{color:var(--brand);font-size:14px;font-weight:600}
.nav-right .ghost:hover{text-decoration:underline}

/* 移动端汉堡菜单（首页 / 下载页共用，按钮默认隐藏，≤720px 才显示） */
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;margin-left:4px;padding:0;border:none;background:transparent;cursor:pointer;border-radius:10px}
.nav-toggle span{display:block;width:22px;height:2.5px;background:var(--txt);border-radius:3px;transition:transform .25s ease,opacity .2s ease}
.nav.nav-open .nav-toggle span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.nav.nav-open .nav-toggle span:nth-child(2){opacity:0}
.nav.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;background:var(--brand);color:#fff!important;border-radius:10px;padding:9px 20px;font-size:14.5px;font-weight:600;border:none;cursor:pointer;transition:all .18s;white-space:nowrap}
.btn:hover{background:var(--brand-d);transform:translateY(-1px);box-shadow:0 8px 20px -8px rgba(37,99,235,.55)}
.btn-lg{padding:13px 30px;font-size:16px;border-radius:12px}
.btn-ghost{background:#fff;color:var(--brand)!important;border:1.5px solid #c7d7f8}
.btn-ghost:hover{background:var(--brand-l);border-color:var(--brand)}
.btn-dark{background:#0b1220;color:#fff!important}
.btn-tutorial{background:linear-gradient(135deg,#0ea5e9,#2563eb);color:#fff!important}
.btn-tutorial:hover{background:linear-gradient(135deg,#0284c7,#1d4ed8);box-shadow:0 8px 20px -8px rgba(14,165,233,.55)}
.btn-dark:hover{background:#1e293b;box-shadow:0 8px 20px -8px rgba(11,18,32,.5)}
.dl-pagelink{display:inline-flex;align-items:center;align-self:center;font-size:14px;color:var(--accent,#2563eb);text-decoration:none;opacity:.85;transition:opacity .2s}
.dl-pagelink:hover{opacity:1;text-decoration:underline}
.cta-band .dl-pagelink{color:#fff;opacity:.9}
.btn-block{display:flex;width:100%}

/* 多下载地址下拉（点击展开） */
.dl-group{position:relative;display:inline-flex}
.dl-group .dl-caret{font-size:11px;opacity:.7;margin-left:3px;transition:transform .2s}
.dl-group.open .dl-caret{transform:rotate(180deg)}
.dl-menu{position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%);min-width:220px;background:#fff;border:1px solid #e2e8f0;border-radius:12px;box-shadow:0 16px 40px -12px rgba(15,23,42,.25);padding:6px;display:none;z-index:60}
.dl-group.open .dl-menu{display:block}
.dl-menu .dl-opt{display:flex;align-items:center;gap:8px;padding:10px 14px;font-size:14px;font-weight:500;color:#334155;border-radius:8px;transition:background .12s}
.dl-menu .dl-opt:hover{background:#f1f5f9;color:var(--brand)}
.dl-menu .dl-opt .dl-ico{font-size:18px;line-height:1;width:24px;text-align:center;flex-shrink:0}
.dl-menu .dl-opt .dl-logo{width:18px;height:18px;border-radius:5px;object-fit:contain;flex-shrink:0;display:block}
.dl-menu .dl-opt .dl-txt{flex:1}
.dl-menu .dl-opt .dl-url{font-size:11px;color:#94a3b8;max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex-shrink:0}
/* 底部 CTA 里的下载下拉 */
.cta-band .dl-menu{box-shadow:0 16px 40px -12px rgba(0,0,0,.35)}
.cta-band .dl-menu .dl-opt{color:#1e293b}
.cta-band .dl-menu .dl-opt:hover{background:#f1f5f9;color:#1d4ed8}
/* 移动端适配 */
@media(max-width:900px){.dl-menu{left:auto;right:-10px;transform:none;min-width:200px}}

/* ===== Hero ===== */
.hero{background:
  radial-gradient(900px 380px at 15% -5%,rgba(37,99,235,.10),transparent 60%),
  radial-gradient(800px 360px at 90% 0%,rgba(124,58,237,.10),transparent 55%),
  linear-gradient(180deg,#fbfcff 0%,#f2f6ff 55%,#f7f9fc 100%);
  padding:76px 0 90px;text-align:center;overflow:hidden}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid #d6e3fd;color:var(--brand);border-radius:999px;padding:6px 16px;font-size:13px;font-weight:600;box-shadow:0 2px 8px rgba(37,99,235,.08)}
.hero-badge .pulse{width:7px;height:7px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 3px rgba(34,197,94,.2);animation:blink 1.8s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{font-size:52px;font-weight:900;letter-spacing:-1.5px;line-height:1.16;margin:22px 0 16px}
.hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{color:var(--txt2);font-size:18px;max-width:640px;margin:0 auto 30px}
.hero .cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero .hero-tags{margin-top:24px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.hero-tags .tag{background:#fff;border:1px solid var(--line);color:var(--txt2);border-radius:999px;padding:5px 15px;font-size:13px;font-weight:500}

/* ===== Hero 演示区 ===== */
.demo-box{margin:52px auto 0;max-width:920px;text-align:left;background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);overflow:hidden}
.demo-head{display:flex;align-items:center;justify-content:space-between;padding:13px 18px;background:#0b1220;color:#cbd5e1;font-size:12.5px;border-bottom:1px solid #1e293b}
.demo-head .dots{display:flex;gap:7px}
.demo-head .dots i{width:11px;height:11px;border-radius:50%;display:inline-block}
.demo-head .live{display:inline-flex;align-items:center;gap:6px;background:#16a34a;color:#fff;font-weight:700;font-size:11px;padding:3px 11px;border-radius:999px;letter-spacing:.5px}
.demo-head .live::before{content:"";width:6px;height:6px;border-radius:50%;background:#fff;animation:liveBlink 1.4s infinite}
@keyframes liveBlink{0%,100%{opacity:1}50%{opacity:.35}}
.demo-input{display:flex;gap:10px;padding:20px}
.demo-input input{flex:1;padding:13px 16px;border:1.5px solid var(--line);border-radius:12px;font-size:14.5px;color:var(--txt);background:#f8fafc;transition:border .15s}
.demo-input input:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px rgba(37,99,235,.1)}
.demo-input .btn{flex-shrink:0}
.demo-platforms{display:flex;gap:14px;padding:0 20px 18px;font-size:12.5px;color:var(--txt3);align-items:center;flex-wrap:wrap}
.demo-platforms span{display:inline-flex;align-items:center;gap:5px}

/* 进度面板 */
.demo-progress{display:none;padding:6px 20px 20px}
.demo-progress.show{display:block}
.prog-step{display:flex;align-items:center;gap:12px;padding:9px 0;color:var(--txt2);font-size:14px}
.prog-step .st{width:22px;height:22px;border-radius:50%;border:2px solid #cbd5e1;display:flex;align-items:center;justify-content:center;font-size:11px;color:var(--txt3);font-weight:700;flex-shrink:0;transition:all .2s}
.prog-step .ptxt{flex:1;min-width:0;word-break:break-word}
.prog-step .bar{width:34%;max-width:220px;height:5px;border-radius:99px;background:#edf1f7;overflow:hidden;flex-shrink:0}
.prog-step .bar i{display:block;height:100%;width:0;border-radius:99px;background:var(--brand);transition:width .5s ease;will-change:width}
.prog-step .st-done{border-color:var(--ok);background:var(--ok);color:#fff}
.prog-step .st-run{border-color:var(--brand);color:var(--brand);animation:pulse-b 1s infinite}
@keyframes pulse-b{0%,100%{box-shadow:0 0 0 0 rgba(37,99,235,.3)}50%{box-shadow:0 0 0 6px rgba(37,99,235,0)}}

/* 笔记结果 */
.demo-result{display:none;padding:4px 20px 20px}
.demo-result.show{display:block}
.result-tabs{display:flex;gap:8px;margin-bottom:14px}
.result-tabs .rt{padding:6px 16px;border-radius:999px;font-size:13px;font-weight:600;background:#f1f5f9;color:var(--txt2);cursor:pointer;border:1px solid var(--line)}
.result-tabs .rt.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.result-md{background:#0b1220;color:#d1d9e8;border-radius:14px;padding:22px 24px;font-family:"SFMono-Regular",Consolas,"Courier New",monospace;font-size:13px;line-height:1.75;overflow:auto;max-height:380px}
.result-md .md-title{color:#fff;font-weight:700;font-size:15px;margin-bottom:10px}
.result-md .md-h{color:#93c5fd;font-weight:700;margin:14px 0 6px}
.result-md .md-li{color:#cbd5e1;padding-left:6px}
.result-md .md-time{color:#fbbf24;font-weight:600}
.result-md .md-quote{color:#94a3b8;border-left:3px solid #475569;padding-left:10px;margin:8px 0}
.demo-again{margin-top:14px;text-align:center}
.demo-again .btn{background:#f1f5f9;color:var(--txt2)!important;box-shadow:none}
.demo-again .btn:hover{background:#e2e8f0;color:var(--txt)!important}

/* ===== 数据统计 ===== */
.stats{padding:46px 0;background:var(--card);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat .num{font-size:34px;font-weight:900;letter-spacing:-1px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .lbl{color:var(--txt2);font-size:13.5px;margin-top:2px}

/* ===== 区块通用 ===== */
section{padding:72px 0}
/* 折叠以下 section 启用 content-visibility:auto 跳过不可见区域渲染 */
section[id]{content-visibility:auto;contain-intrinsic-size:600px}
.sec-head{text-align:center;margin-bottom:46px}
.sec-title{font-size:31px;font-weight:900;letter-spacing:-.8px;line-height:1.3}
.sec-sub{color:var(--txt2);font-size:15.5px;margin-top:10px}

/* ===== 支持平台 ===== */
.platforms{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.pf-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.pf-card{display:flex;align-items:center;gap:14px;border:1px solid var(--line);border-radius:14px;padding:18px 18px;background:var(--bg);transition:transform .18s,box-shadow .18s}
.pf-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#c7d7f8}
.pf-card .pf-ico{width:46px;height:46px;border-radius:12px;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0;overflow:hidden}
.pf-card .brand-logo{display:block;width:36px;height:36px;object-fit:contain}
/* 演示区 logo 尺寸跟随内联属性（16px） */
.demo-platforms .brand-logo{width:auto;height:auto;max-width:16px;max-height:16px;vertical-align:middle}
.pf-card .pf-name{font-weight:700;font-size:15px}
.pf-card .pf-desc{color:var(--txt2);font-size:12.5px}
.pf-card.soon{opacity:.62}
.pf-card.soon .pf-tag{font-size:11px;color:var(--warn);border:1px solid #fde68a;background:#fffbeb;border-radius:999px;padding:1px 9px;font-weight:600}
/* 可点击的「更多视频」卡 */
a.pf-card.pf-more{text-decoration:none;color:inherit;cursor:pointer}
a.pf-card.pf-more:hover{border-color:#7C3AED;box-shadow:0 6px 20px rgba(124,58,237,.14)}
a.pf-card.pf-more .pf-desc{color:#7C3AED;font-weight:600}

/* ===== 6 大卖点 ===== */
.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:transform .2s,box-shadow .2s;position:relative;overflow:hidden}
.feat:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.feat .feat-ico{width:56px;height:56px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;transition:transform .25s}
.feat .feat-ico svg{width:54px;height:54px;filter:drop-shadow(0 8px 18px rgba(37,99,235,.18));transition:transform .25s}
.feat:hover .feat-ico svg{transform:scale(1.08) rotate(-2deg)}
.feat .feat-no{position:absolute;top:18px;right:20px;font-size:34px;font-weight:900;color:#edf2fb}
.feat h3{font-size:17px;margin-bottom:8px}
.feat p{color:var(--txt2);font-size:13.8px}

/* ===== 完整功能介绍表格 ===== */
.feat-table{width:100%;border-collapse:separate;border-spacing:0;background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm,0 8px 24px -14px rgba(15,35,90,.14))}
.feat-table th,.feat-table td{padding:13px 16px;text-align:left;font-size:13.5px;border-bottom:1px solid var(--line);vertical-align:top}
.feat-table tr:last-child td{border-bottom:none}
.feat-table thead th{background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;font-weight:700;font-size:13px;letter-spacing:.3px;white-space:nowrap}
.feat-table td.cat{font-weight:700;color:var(--txt);white-space:nowrap;background:#f8faff;width:120px}
.feat-table td .ft-name{font-weight:600;color:var(--txt);display:flex;align-items:center;gap:7px}
.feat-table td .ft-name .ft-ico{font-size:16px}
.feat-table td .ft-desc{color:var(--txt2);font-size:12.5px;margin-top:2px;line-height:1.55}
.feat-table tr:hover td{background:#f5f8ff}
.feat-table .soon-tag{display:inline-block;font-size:10.5px;color:var(--warn,#d97706);border:1px solid #fde68a;background:#fffbeb;border-radius:999px;padding:1px 8px;font-weight:600;margin-left:6px;white-space:nowrap}
.feat-more{
  margin-top:22px;text-align:center;padding:16px 24px;border-radius:14px;
  background:linear-gradient(135deg,#eef4ff,#f3eeff);border:1px dashed #c7d2f8;
  color:var(--txt2);font-size:14.5px;font-weight:600;letter-spacing:.4px;
}
.feat-more-dots{color:var(--brand);letter-spacing:2px;margin-left:4px}
@media(max-width:720px){
  /* 手机端：表格转卡片式列表 */
  .feat-table thead{display:none}
  .feat-table,.feat-table tbody,.feat-table tr,.feat-table td{display:block;width:100%}
  .feat-table{border:none;box-shadow:none;background:transparent}
  .feat-table tbody{display:flex;flex-direction:column;gap:10px}
  .feat-table tr{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden}
  .feat-table tr:hover td{background:transparent}
  .feat-table td{border-bottom:none;padding:0}
  .feat-table td.cat{width:100%;background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;font-size:12px;padding:6px 12px;white-space:normal}
  .feat-table td .ft-name{padding:10px 12px 0;font-size:14px;align-items:flex-start;flex-wrap:wrap}
  .feat-table td .ft-desc{display:block;padding:0 12px 10px;font-size:12px}
  .feat-table td:last-child{padding:0 12px 10px;font-size:12px}
  .feat-table .soon-tag{margin-left:0}
}

/* ===== AI 合作 ===== */
.ai{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.ai-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px}
.ai-card{border:1px solid var(--line);border-radius:14px;padding:20px 14px;text-align:center;background:var(--card);transition:transform .18s,box-shadow .18s}
.ai-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.ai-card .ai-logo{width:40px;height:40px;margin:0 auto 10px;border-radius:11px;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px -4px rgba(15,23,42,.12);transition:transform .18s;overflow:hidden}
.ai-card:hover .ai-logo{transform:scale(1.08)}
.ai-card .ai-logo .brand-logo{display:block;width:32px;height:32px;object-fit:contain}
.ai-card .ai-name{font-weight:700;font-size:14.5px}
.ai-card .ai-desc{color:var(--txt2);font-size:12px;margin-top:4px}

/* ---- 桌面端：AI 卡片单行无缝横向滚动（从右进、匀速向左、循环）---- */
@media (min-width:721px){
  .ai-grid{display:block;overflow:hidden;position:relative;
    -webkit-mask-image:linear-gradient(90deg,transparent,#000 5%,#000 95%,transparent);
    mask-image:linear-gradient(90deg,transparent,#000 5%,#000 95%,transparent)}
  .ai-track{display:flex;width:max-content;will-change:transform;animation:aiMarquee 32s linear infinite}
  .ai-track:hover{animation-play-state:paused}
  .ai-grid .ai-card{flex:0 0 200px;width:200px;margin-right:16px}
}
@keyframes aiMarquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ===== 3 步流程 ===== */
.pipe-grid{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:0;align-items:stretch}
.pipe{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;position:relative}
.pipe .pipe-no{display:inline-block;background:var(--brand);color:#fff;font-size:12px;font-weight:800;border-radius:999px;padding:3px 12px;margin-bottom:14px;letter-spacing:1px}
.pipe h3{font-size:17px;margin-bottom:10px}
.pipe ul{list-style:none;font-size:13.5px;color:var(--txt2)}
.pipe li{padding:4px 0;display:flex;gap:8px;align-items:flex-start}
.pipe li::before{content:"✓";color:var(--ok);font-weight:700;flex-shrink:0}
.pipe .pipe-tip{display:inline-block;margin-top:12px;background:var(--brand-l);color:var(--brand);font-size:12.5px;font-weight:600;border-radius:999px;padding:4px 12px}
.pipe-arrow{display:flex;align-items:center;padding:0 14px;color:#c7d7f8;font-size:26px;font-weight:700}

/* ===== 价格 ===== */
.pricing{background:linear-gradient(180deg,#f7f9fc,#f2f6ff 60%,#f7f9fc)}
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;max-width:960px;margin:0 auto}
.plan{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:32px 28px;text-align:center;position:relative;transition:transform .2s,box-shadow .2s}
.plan:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.plan.hot{border:2px solid var(--brand);background:#fff;box-shadow:0 22px 50px -18px rgba(37,99,235,.4)}
.plan .flag{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:12px;font-weight:700;padding:4px 16px;border-radius:999px;white-space:nowrap;box-shadow:0 4px 12px -4px rgba(37,99,235,.6)}
.plan h3{font-size:18px}
.plan .price{font-size:42px;font-weight:900;letter-spacing:-1.5px;margin:14px 0 2px}
.plan .price small{font-size:14px;font-weight:400;color:var(--txt3)}
.plan .per{color:var(--txt3);font-size:13.5px;margin-bottom:18px}
.plan ul{list-style:none;margin:0 0 22px;text-align:left;font-size:14px;color:var(--txt2)}
.plan li{padding:5px 0;display:flex;gap:9px}
.plan li::before{content:"✓";color:var(--ok);font-weight:800}
.plan .old{color:var(--txt3);text-decoration:line-through;font-size:13.5px;margin-left:6px}

/* ===== FAQ ===== */
.faq{max-width:780px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:11px;overflow:hidden;transition:border .15s}
.faq-item.open{border-color:#c7d7f8}
.faq-q{width:100%;text-align:left;background:none;border:none;padding:17px 20px;font-size:15px;font-weight:600;cursor:pointer;color:var(--txt);display:flex;justify-content:space-between;align-items:center;font-family:inherit}
.faq-q .arr{color:var(--txt3);transition:transform .25s;flex-shrink:0;font-size:13px}
.faq-item.open .arr{transform:rotate(180deg);color:var(--brand)}
.faq-a{display:none;padding:0 20px 18px;color:var(--txt2);font-size:14px}
.faq-item.open .faq-a{display:block}

/* ===== 底部 CTA ===== */
.cta-band{background:linear-gradient(120deg,#1e3a8a,#2563eb 55%,#7c3aed);color:#fff;text-align:center;padding:64px 0;border-radius:24px;margin:24px 0}
.cta-band h2{font-size:30px;font-weight:900;letter-spacing:-.6px}
.cta-band p{color:#dbe7ff;margin:12px 0 26px;font-size:15.5px}
.cta-band .btn{background:#fff;color:#1d4ed8!important}
.cta-band .btn:hover{background:#f1f5ff;box-shadow:0 10px 26px -10px rgba(0,0,0,.4)}
.cta-band .btn-ghost2{background:rgba(255,255,255,.12);color:#fff!important;border:1px solid rgba(255,255,255,.4)}
.cta-band .btn-ghost2:hover{background:rgba(255,255,255,.2)}

/* ===== 页脚 ===== */
footer{background:#0b1220;color:#8a97b5;padding:44px 0 34px;font-size:13.5px;margin-top:64px}
footer .foot-top{display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px;margin-bottom:28px}
footer .foot-brand .logo{color:#fff;margin-bottom:10px}
footer .foot-brand p{max-width:340px;color:#8a97b5;font-size:13px}
footer .foot-cols{display:flex;gap:56px;flex-wrap:wrap}
footer .foot-cols h4{color:#e2e8f0;font-size:14px;margin-bottom:12px;font-weight:600}
footer .foot-cols a{display:block;color:#8a97b5;font-size:13px;padding:3px 0}
footer .foot-cols a:hover{color:#fff}
footer .foot-bottom{border-top:1px solid #1e293b;padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12.5px}

/* ===== 响应式 ===== */
@media (max-width:960px){
  .feats{grid-template-columns:repeat(2,1fr)}
  .pipe-grid{grid-template-columns:1fr;gap:14px}
  .pipe-arrow{display:none}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px}
}
/* ===== 平板/手机导航断点（≤960px 显示汉堡菜单，覆盖平板竖屏 768px）===== */
@media (max-width:960px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .nav.nav-open .nav-links,
  .nav.nav-open .dl-navlinks{
    display:flex;flex-direction:column;align-items:flex-start;gap:16px;
    position:absolute;top:62px;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);z-index:99;
    padding:20px 22px;box-shadow:0 14px 30px -14px rgba(15,35,90,.2)
  }
  .nav.nav-open .nav-links a,
  .nav.nav-open .dl-navlinks a{font-size:16px}
}
@media (max-width:720px){
  .hero h1{font-size:34px}
  .hero .sub{font-size:15.5px}
  .feats{grid-template-columns:1fr}
  .sec-title{font-size:25px}
  .demo-input{flex-direction:column;padding:14px}
  .demo-input input{width:100%;flex:none;font-size:14px}
  .demo-input .btn{width:100%;padding:12px 16px}
  .demo-platforms{gap:8px 14px;padding:0 14px 14px;font-size:12px}
  .demo-progress{padding:4px 14px 14px}
  .demo-result{padding:4px 14px 14px}
  .prog-step{gap:8px;font-size:13px}
  .prog-step .st{width:20px;height:20px;font-size:10px}
  .prog-step .bar{width:30%}
  .result-tabs{flex-wrap:wrap;gap:6px}
  .result-tabs .rt{padding:5px 12px;font-size:12px}
  .result-md{padding:14px;font-size:12px;max-height:320px}
  section{padding:52px 0}
  .cta-band h2{font-size:24px}
  .footer .foot-cols{gap:32px}
  /* 手机端弱化入场动效的位移量，减少 scroll-anchoring 误判 */
  .pf-grid .pf-card.ani-in{animation:cardSlideInMobile .5s ease-out both}
  .feats .feat.ani-in{animation:featCardInMobile .5s ease-out both}
  .ai-grid .ai-card.ani-in{animation:aiCardRiseMobile .4s ease-out both}
  .pipe-grid .pipe.ani-in{animation:pipeStepInMobile .4s ease-out both}
  .pipe-grid .pipe.ani-in:nth-child(5){animation-name:pipeStepInRightMobile}
  .plans .plan.ani-in{animation:planFloatInMobile .5s ease-out both}
  .cta-band.ani-in{animation:ctaFadeInMobile .4s ease-out both}
  /* 手机端 AI 卡片回落为网格：轨道退化、隐藏循环副本 */
  .ai-grid{overflow:visible}
  .ai-track{display:contents;animation:none!important}
  .ai-grid .ai-dup{display:none}
}
@keyframes cardSlideInMobile{0%{opacity:0;transform:translateY(10px) scale(.97)}100%{opacity:1;transform:translateY(0) scale(1)}}
@keyframes featCardInMobile{0%{opacity:0;transform:translateY(12px)}100%{opacity:1;transform:translateY(0)}}
@keyframes aiCardRiseMobile{0%{opacity:0;transform:translateY(8px)}100%{opacity:1;transform:translateY(0)}}
@keyframes pipeStepInMobile{0%{opacity:0;transform:translateX(-8px)}100%{opacity:1;transform:translateX(0)}}
@keyframes pipeStepInRightMobile{0%{opacity:0;transform:translateX(8px)}100%{opacity:1;transform:translateX(0)}}
@keyframes planFloatInMobile{0%{opacity:0;transform:translateY(10px) scale(.98)}100%{opacity:1;transform:translateY(0) scale(1)}}
@keyframes ctaFadeInMobile{0%{opacity:0;transform:translateY(8px)}100%{opacity:1;transform:translateY(0)}}

/* ============================================================
   动态效果（克制动效，尊重 prefers-reduced-motion）
   ============================================================ */
/* 背景光斑呼吸 */
.bg-scene{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(600px 360px at 15% -5%,rgba(37,99,235,.10),transparent 60%),
    radial-gradient(560px 320px at 88% 8%,rgba(124,58,237,.10),transparent 55%),
    radial-gradient(700px 400px at 50% 100%,rgba(37,99,235,.06),transparent 60%);
  /* 2026-09-07 性能修复：移除 aurora filter 动画。
     全屏 fixed 层 + filter:hue-rotate 无限动画 = 每帧整屏重栅格化，
     是滚动掉帧的头号原因；静态光斑视觉几乎无差（18deg 色相漂移肉眼难辨）。 */}
@keyframes aurora{0%{filter:hue-rotate(0deg) saturate(1)}100%{filter:hue-rotate(18deg) saturate(1.25)}}

/* Hero 入场 + 渐变流动 */
.hero>*{animation:fadeUp .8s ease-out both}
.hero>*:nth-child(2){animation-delay:.12s}
.hero>*:nth-child(3){animation-delay:.24s}
.hero>*:nth-child(4){animation-delay:.3s}
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
.hero h1 .grad{background-size:200% 200%;animation:gradientShift 4s ease infinite}
@keyframes gradientShift{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}

/* logo 浮动 */
.logo-mark{animation:logoFloat 3.2s ease-in-out infinite}
@keyframes logoFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-3px)}}

/* 导航下划线 */
.nav-links a{position:relative}
.nav-links a::after{content:"";position:absolute;bottom:-4px;left:0;width:100%;height:2px;background:var(--grad);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .3s}
.nav-links a:hover::after{transform:scaleX(1)}

/* 滚动渐入 */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media(max-width:720px){
  .reveal{transform:translateY(12px);transition:opacity .4s ease,transform .4s ease}
}

/* 卡片悬停：上浮 + 图标微动 */
.pf-card:hover .pf-ico{transform:rotate(-6deg) scale(1.08)}
.feat:hover .feat-ico svg{transform:translateY(-3px) scale(1.06)}
.ai-card:hover .ai-logo{transform:scale(1.1) rotate(-3deg)}

/* 卖点卡片顶部渐变条展开 */
.feat{overflow:hidden}
.feat::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .35s;z-index:1}
.feat:hover::before{transform:scaleX(1)}

/* 流程箭头脉冲 */
.pipe-arrow{animation:arrowPulse 2s infinite}
@keyframes arrowPulse{0%,100%{transform:translateX(0);opacity:.6}50%{transform:translateX(6px);opacity:1}}

/* 演示区平台标签 */
.demo-platforms .pf-chip{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:999px;background:#fff;border:1px solid var(--line);transition:transform .2s,box-shadow .2s}
.demo-platforms .pf-chip:hover{transform:translateY(-2px);box-shadow:0 6px 16px -6px rgba(37,99,235,.3)}

/* 返回顶部按钮 */
.backtop{position:fixed;bottom:28px;right:28px;width:44px;height:44px;border-radius:12px;background:var(--grad);color:#fff;font-size:20px;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 8px 24px -8px rgba(37,99,235,.5);opacity:0;pointer-events:none;transition:opacity .3s,transform .3s;z-index:200;border:none}
.backtop.show{opacity:1;pointer-events:auto}
.backtop:hover{transform:translateY(-3px)}

/* 无障碍：减少动效 */
@media (prefers-reduced-motion:reduce){
  .bg-scene,.hero>*,.logo-mark,.pipe-arrow,.pstep .psep i,.ai-track{animation:none!important}
  .reveal,.pf-card.ani-in,.feat.ani-in,.ai-card.ani-in,.pipe.ani-in,.plan.ani-in,.cta-band.ani-in{opacity:1!important;transform:none!important}
  .pf-card::before,.pf-card::after,.ai-scan{display:none!important}
}

/* ============================================================
   各板块针对性动态效果（按板块内容设计）
   ============================================================ */

/* ---- 支持的平台：网络节点 + 名片交错入场 ---- */
/* 动画仅在 .ani-in 类被 JS 添加后播放 */
.pf-grid .pf-card.ani-in{
  animation:cardSlideIn .7s ease-out both;
  transform-origin:center bottom;
  position:relative;
}
.pf-grid .pf-card.ani-in:nth-child(1){animation-delay:.05s}
.pf-grid .pf-card.ani-in:nth-child(2){animation-delay:.15s}
.pf-grid .pf-card.ani-in:nth-child(3){animation-delay:.25s}
.pf-grid .pf-card.ani-in:nth-child(4){animation-delay:.35s}
.pf-grid .pf-card.ani-in:nth-child(5){animation-delay:.45s}
.pf-grid .pf-card.ani-in:nth-child(6){animation-delay:.55s}
.pf-grid .pf-card.ani-in:nth-child(7){animation-delay:.65s}
@keyframes cardSlideIn{
  0%{opacity:0;transform:translateY(30px) scale(.92)}
  100%{opacity:1;transform:translateY(0) scale(1)}
}
/* 平台 Logo 浮动呼吸（互联感） */
.pf-card .pf-ico{transition:transform .45s ease,box-shadow .45s ease}
.pf-card:hover .pf-ico{
  transform:rotate(-6deg) scale(1.08);
  box-shadow:0 0 20px rgba(37,99,235,.25);
}
/* 网络节点连线（纯 CSS 模拟）——板块标题上的渐线 */
.platforms .sec-head{position:relative}
.platforms .sec-head::after{
  content:'';
  position:absolute;bottom:-14px;left:50%;
  width:56px;height:2px;
  background:var(--grad);
  transform:translateX(-50%) scaleX(0);
  border-radius:2px;
  transition:transform .8s ease;
}
.platforms.reveal.in .sec-head::after{
  transform:translateX(-50%) scaleX(1);
}

/* ---- 为什么选 VideoNote：编号浮现 + 卡片3D倾斜入场 ---- */
.feats .feat.ani-in{animation:featCardIn .8s ease-out both}
.feats .feat.ani-in:nth-child(1){animation-delay:.05s}
.feats .feat.ani-in:nth-child(2){animation-delay:.12s}
.feats .feat.ani-in:nth-child(3){animation-delay:.19s}
.feats .feat.ani-in:nth-child(4){animation-delay:.26s}
.feats .feat.ani-in:nth-child(5){animation-delay:.33s}
.feats .feat.ani-in:nth-child(6){animation-delay:.40s}
@keyframes featCardIn{
  0%{opacity:0;transform:translateY(36px) perspective(800px) rotateX(4deg)}
  100%{opacity:1;transform:translateY(0) perspective(800px) rotateX(0)}
}
/* 编号大字浮现在右上角缓慢呼吸 */
.feat .feat-no{transition:opacity .5s,transform .5s;opacity:.7}
.feat:hover .feat-no{opacity:1;transform:scale(1.12)}
/* 3行网格交错入场保证每张卡片独立入画 */
.feat{transition:transform .3s ease,box-shadow .3s ease}

/* ---- 接入业内顶尖 AI：科技扫描 + 呼吸辉光 ---- */
.ai-grid .ai-card.ani-in{
  animation:aiCardRise .6s ease-out both;
  position:relative;
  overflow:hidden;
}
.ai-grid .ai-card.ani-in:nth-child(1){animation-delay:.04s}
.ai-grid .ai-card.ani-in:nth-child(2){animation-delay:.10s}
.ai-grid .ai-card.ani-in:nth-child(3){animation-delay:.16s}
.ai-grid .ai-card.ani-in:nth-child(4){animation-delay:.22s}
.ai-grid .ai-card.ani-in:nth-child(5){animation-delay:.28s}
.ai-grid .ai-card.ani-in:nth-child(6){animation-delay:.34s}
@keyframes aiCardRise{
  0%{opacity:0;transform:translateY(24px) scale(.96)}
  100%{opacity:1;transform:translateY(0) scale(1)}
}
/* 扫描光效（从左上到右下） */
.ai-card::before{
  content:'';
  position:absolute;inset:0;
  background:linear-gradient(135deg,transparent 40%,rgba(37,99,235,.08) 50%,transparent 60%);
  opacity:0;
  transition:opacity .6s;
  pointer-events:none;
  z-index:0;
}
.ai-card:hover::before{opacity:1}
/* Logo 辉光呼吸 */
.ai-card .ai-logo{
  position:relative;z-index:1;
  transition:transform .35s,box-shadow .35s;
}
.ai-card:hover .ai-logo{
  transform:scale(1.1) rotate(-3deg);
  box-shadow:0 0 24px rgba(37,99,235,.35);
}
/* 卡片底部智能光条 */
.ai-card::after{
  content:'';
  position:absolute;bottom:0;left:10%;right:10%;
  height:2px;
  background:linear-gradient(90deg,transparent,#2563eb,transparent);
  transform:scaleX(0);
  transition:transform .5s ease;
  border-radius:2px;
}
.ai-card:hover::after{transform:scaleX(1)}

/* ---- 3 步拿到笔记：水流递进 + 放大聚焦 ---- */
.pipe-grid .pipe.ani-in{
  animation:pipeStepIn .7s ease-out both;
  position:relative;
  overflow:hidden;
}
.pipe-grid .pipe.ani-in:nth-child(1){animation-delay:.05s}
.pipe-grid .pipe.ani-in:nth-child(3){animation-delay:.20s}
.pipe-grid .pipe.ani-in:nth-child(5){animation-delay:.50s;animation-name:pipeStepInRight}
@keyframes pipeStepIn{
  0%{opacity:0;transform:translateX(-20px)}
  100%{opacity:1;transform:translateX(0)}
}
@keyframes pipeStepInRight{
  0%{opacity:0;transform:translateX(20px)}
  100%{opacity:1;transform:translateX(0)}
}
/* 卡片内水流光效（从左到右扫描）— 用 translateX 避免触发布局 */
.pipe::after{
  content:'';
  position:absolute;top:0;left:0;width:60%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(37,99,235,.06),transparent);
  animation:pipeShine 3.5s ease-in-out infinite;
  pointer-events:none;
}
@keyframes pipeShine{
  0%{transform:translateX(-100%)}
  50%{transform:translateX(170%)}
  100%{transform:translateX(170%)}
}
/* 鼠标悬停时卡片放大聚焦 */
.pipe{transition:transform .35s ease,box-shadow .35s ease}
.pipe:hover{
  transform:scale(1.03);
  box-shadow:0 20px 50px -20px rgba(37,99,235,.4);
}
/* 编号 badge 光晕 */
.pipe .pipe-no{
  position:relative;z-index:1;
  animation:badgeGlow 2.4s ease-in-out infinite;
}
@keyframes badgeGlow{
  0%,100%{box-shadow:0 0 6px rgba(37,99,235,.3)}
  50%{box-shadow:0 0 18px rgba(37,99,235,.5)}
}
/* 第 2 步 AI WORKING 特殊强调 */
.pipe-grid .pipe:nth-child(3) .pipe-no{
  background:linear-gradient(90deg,#2563eb,#7c3aed);
  animation:badgeGlow 1.8s ease-in-out infinite;
}

/* ---- 完整功能介绍（无特效，静态表格） ---- */

/* ---- 价格卡片的入场 ---- */
.plans .plan.ani-in{animation:planFloatIn .7s ease-out both}
.plans .plan.ani-in:nth-child(1){animation-delay:.05s}
.plans .plan.ani-in:nth-child(2){animation-delay:.13s}
.plans .plan.ani-in:nth-child(3){animation-delay:.21s}
@keyframes planFloatIn{
  0%{opacity:0;transform:translateY(30px) scale(.95)}
  100%{opacity:1;transform:translateY(0) scale(1)}
}
/* 底部 CTA 渐入 */
.cta-band.ani-in{animation:ctaFadeIn .8s ease-out both}
@keyframes ctaFadeIn{
  0%{opacity:0;transform:translateY(20px)}
  100%{opacity:1;transform:translateY(0)}
}

/* ============================================================
   AI 实时处理流水线动态条（模拟生成中）
   ============================================================ */
.ai-pipeline{margin:28px auto 0;max-width:920px;background:#0b1220;border:1px solid #1e293b;border-radius:14px;padding:16px 20px;overflow:hidden}
.ai-pipeline .pipe-head{display:flex;align-items:center;gap:8px;font-size:12px;color:#8b98b5;margin-bottom:12px}
.ai-pipeline .pipe-head .live{display:inline-flex;align-items:center;gap:6px;background:rgba(16,185,129,.15);color:#34d399;font-weight:700;font-size:10.5px;padding:2px 10px;border-radius:999px}
.ai-pipeline .pipe-head .live::before{content:"";width:5px;height:5px;border-radius:50%;background:#34d399;animation:plink 1.2s infinite}
@keyframes plink{0%,100%{opacity:1}50%{opacity:.3}}
.ai-pipeline .pipe-steps{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.ai-pipeline .pstep{display:flex;align-items:center;gap:6px;font-size:12px;color:#5d6b8a;white-space:nowrap}
.ai-pipeline .pstep .pdot{width:16px;height:16px;border-radius:50%;border:1.5px solid #334155;display:flex;align-items:center;justify-content:center;font-size:8px;color:#5d6b8a;flex-shrink:0}
.ai-pipeline .pstep.done .pdot{background:#10b981;border-color:#10b981;color:#fff}
.ai-pipeline .pstep.done{color:#94a3b8}
.ai-pipeline .pstep.active .pdot{background:#2563eb;border-color:#2563eb;color:#fff;animation:ppulse 1s infinite}
.ai-pipeline .pstep.active{color:#cbd5e1;font-weight:600}
@keyframes ppulse{0%,100%{box-shadow:0 0 0 0 rgba(37,99,235,.4)}50%{box-shadow:0 0 0 5px rgba(37,99,235,0)}}
.ai-pipeline .pstep .psep{width:18px;height:2px;background:#1e293b;position:relative;overflow:hidden}
.ai-pipeline .pstep.done .psep{background:#334155}
.ai-pipeline .pstep.active .psep{background:linear-gradient(90deg,#2563eb,#7c3aed)}
.ai-pipeline .pstep .psep i{position:absolute;top:0;left:0;width:40%;height:100%;background:rgba(255,255,255,.5);animation:flow 1.2s linear infinite}
@keyframes flow{from{transform:translateX(-100%)}to{transform:translateX(250%)}}
.ai-pipeline .pipe-out{display:flex;align-items:center;gap:8px;margin-top:10px;font-size:12px;color:#34d399;min-height:18px}
.ai-pipeline .pipe-out .type-dot{width:6px;height:6px;border-radius:50%;background:#34d399;margin-left:2px}
.ai-pipeline .pipe-out .cursor{display:inline-block;width:7px;height:14px;background:#34d399;margin-left:2px;animation:cursorBlink .9s infinite;vertical-align:middle}
@keyframes cursorBlink{0%,100%{opacity:1}50%{opacity:0}}

/* 区块徽章跳动 */
.sec-kicker{display:inline-block;font-size:12px;letter-spacing:2.5px;text-transform:uppercase;color:var(--brand);background:var(--brand-l);padding:4px 16px;border-radius:999px;margin-bottom:14px}
.sec-head .sec-kicker{animation:badgePop .6s ease-out both}
@keyframes badgePop{0%{transform:scale(.6);opacity:0}100%{transform:scale(1);opacity:1}}

/* ============================================================
   2026-09-07 按需求移除「为什么选 VideoNote / 3步拿到笔记 / 价格」
   三模块动画特效（入场飞入 / hover 悬浮 / 箭头脉冲 / 编号光晕 /
   流光高光），改为静态展示。若需恢复动画，删除本段即可。
   ============================================================ */
/* 1) section 不再依赖滚动 reveal 渐显，立即可见 */
#why.reveal,#steps.reveal,#pricing.reveal{opacity:1;transform:none;transition:none}
/* 2) 卡片入场动画全部关闭（桌面 + 移动统一） */
#why .feat.ani-in,
#steps .pipe.ani-in,
#pricing .plan.ani-in{animation:none!important;opacity:1!important;transform:none!important}
/* 3) hover 悬浮 / 阴影 / 子元素微动效关闭 */
#why .feat:hover,#steps .pipe:hover,#pricing .plan:not(.hot):hover{box-shadow:none!important}
#why .feat:hover,
#why .feat:hover .feat-ico svg,
#why .feat:hover::before,
#why .feat:hover .feat-no,
#steps .pipe:hover,
#pricing .plan:hover,#pricing .plan.hot:hover{transform:none!important}
#why .feat:hover .feat-no{opacity:.7!important} /* 编号保持常态，不随 hover 增亮 */
/* 4) steps 装饰动画关闭：步骤箭头脉冲 / 编号光晕 / 流光高光 */
#steps .pipe-arrow{animation:none!important}
#steps .pipe .pipe-no{animation:none!important}
#steps .pipe::after{animation:none!important;display:none}

/* ============================================================
   2026-09-07 (第二批) 移除「想试自己的视频？立即下载」整块入场动画；
   移除「接入业内顶尖 AI」卡片 hover 的 扫描光线 / logo 辉光光韵 /
   底部光条 / 卡片上浮阴影 特效。删除本段即可恢复。
   ============================================================ */
/* 立即下载 CTA 整块入场动画关闭（桌面 + 移动） */
.cta-band.ani-in{animation:none!important;opacity:1!important;transform:none!important}
/* 顶尖 AI：hover 时不再出现任何光效与位移 */
.ai-card:hover{transform:none!important;box-shadow:none!important}
.ai-card:hover::before{opacity:0!important}          /* 斜向扫描光线 */
.ai-card:hover .ai-logo{transform:none!important;box-shadow:none!important}  /* logo 辉光光韵 */
.ai-card:hover::after{transform:scaleX(0)!important} /* 底部智能光条 */

/* ============================================================
   2026-09-07 (第三批) 移除全部剩余「入场动画」，页面打开即静态直显：
   - 所有 section 的滚动 reveal 渐显（platforms / AI 等剩余板块，
     不再等滚入视口才浮现，也防 JS 异常时内容卡在隐藏态）
   - 平台卡 .pf-card / AI 卡 .ai-card 的逐卡浮现（与第一批已删模块统一）
   - hero 首屏 fadeUp 渐显错落
   若需恢复动画，删除本段即可。
   ============================================================ */
/* 1) 所有 section 不再依赖滚动 reveal，打开即完整可见 */
.reveal{opacity:1!important;transform:none!important;transition:none!important}
/* 2) 剩余卡片入场动画关闭：平台卡 / AI 卡 */
.pf-grid .pf-card.ani-in,
.ai-grid .ai-card.ani-in{animation:none!important;opacity:1!important;transform:none!important}
/* 3) hero 首屏 fadeUp 渐显关闭 */
.hero>*{animation:none!important;opacity:1!important;transform:none!important}