/* ============================================================
   帧象 AI · FRAMIND 官网样式 v3（多页面 · 深色剪映风加强版）
   背景 #000 / 品牌青渐变 #10ACDF→#01FAE3 / 宽屏容器 1680px
   特效：流光标题 · 按钮流光 · 卡片光泽 · 鼠标光效 · 视差光晕
   ============================================================ */

:root{
  --bg:#000000;
  --panel:#0e1116;
  --panel-2:#12151b;
  --panel-3:#1b2733;
  --line:#1e2430;
  --line-soft:rgba(255,255,255,.08);
  --txt:#f2f5f9;
  --txt-2:#9ba3af;
  --txt-3:#6b7280;
  --cyan-1:#10acdf;
  --cyan-2:#01fae3;
  --blue:#72adf4;
  --grad-btn:linear-gradient(90deg,#10acdf 0%,#01fae3 100%);
  --grad-hero-card:linear-gradient(135deg,#a9c5f8 0%,#93d5de 42%,#72adf4 78%,#9ea7f4 100%);
  --ink-on-grad:#04252b;
  --shadow-cyan:0 24px 70px -24px rgba(16,172,223,.4);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px;overflow-x:hidden}
body{
  font-family:"PingFang SC","Microsoft YaHei UI","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);color:var(--txt);line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  animation:pagein .55s ease;
}
@keyframes pagein{from{opacity:0}to{opacity:1}}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button{font-family:inherit;background:none;border:0;color:inherit;cursor:pointer}

/* 宽屏容器：1920→1680，2560+→1680 封顶，两侧留白大幅收窄 */
.container{width:min(1680px,94vw);margin-inline:auto}

/* ---------- 环境光晕（滚动视差由 JS 驱动） ---------- */
.glow{position:absolute;border-radius:50%;filter:blur(130px);pointer-events:none;z-index:0;will-change:transform}
.glow-hero{width:720px;height:720px;background:rgba(16,172,223,.14);top:-180px;right:-140px}
.glow-mod{width:620px;height:620px;background:rgba(1,250,227,.07);bottom:-220px;left:-200px}
.glow-dl{width:680px;height:680px;background:rgba(114,173,244,.1);top:-140px;left:50%;margin-left:-340px}
.glow-head{width:560px;height:420px;background:rgba(16,172,223,.12);top:-120px;left:50%;margin-left:-280px}

/* ---------- 通用板块 ---------- */
.section{padding:clamp(88px,9vw,140px) 0 0;position:relative}
.h2{
  text-align:center;font-size:clamp(30px,3.4vw,50px);font-weight:800;
  letter-spacing:.01em;line-height:1.3;margin-bottom:clamp(38px,4.5vw,60px);
}
.h2 em{
  font-style:normal;
  background:linear-gradient(92deg,#10acdf,#01fae3 45%,#7cc0ff 80%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- 按钮 ---------- */
.btn-grad{
  position:relative;display:inline-flex;align-items:center;gap:9px;overflow:hidden;
  background:var(--grad-btn);color:var(--ink-on-grad);
  font-size:16px;font-weight:700;padding:15px 40px;border-radius:12px;
  transition:transform .25s ease,box-shadow .25s ease,filter .25s ease;
  box-shadow:0 6px 28px -8px rgba(1,250,227,.5);
}
.btn-grad svg{width:19px;height:19px}
.btn-grad::before{
  content:"";position:absolute;top:-10%;bottom:-10%;left:-70%;width:45%;
  background:linear-gradient(105deg,transparent 8%,rgba(255,255,255,.65) 50%,transparent 92%);
  transform:skewX(-22deg);animation:sheenMove 3.4s ease-in-out infinite;
}
@keyframes sheenMove{0%,55%{left:-70%}85%,100%{left:130%}}
.btn-grad:hover{transform:translateY(-3px);filter:brightness(1.07);box-shadow:0 16px 46px -8px rgba(1,250,227,.6)}
.btn-big{padding:18px 52px;font-size:17.5px;border-radius:14px}
.btn-dark{
  display:inline-flex;align-items:center;gap:7px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.05);
  color:var(--txt);font-size:14.5px;font-weight:600;padding:10px 24px;border-radius:12px;
  transition:border-color .25s,background .25s,color .25s,box-shadow .25s,transform .25s;
}
.btn-dark:hover{border-color:transparent;background:var(--grad-btn);color:var(--ink-on-grad);box-shadow:0 6px 24px -6px rgba(1,250,227,.5);transform:translateY(-2px)}
.link-more{
  display:inline-flex;align-items:center;gap:6px;color:var(--cyan-2);font-weight:600;font-size:15px;
  transition:gap .25s ease,filter .25s;
}
.link-more:hover{gap:11px;filter:brightness(1.15)}
.link-more svg{width:16px;height:16px}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;height:70px;
  background:rgba(0,0,0,.72);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;transition:border-color .3s,background .3s;
}
.nav.scrolled{background:rgba(2,4,8,.86);border-bottom-color:var(--line-soft)}
.nav-inner{display:flex;align-items:center;height:70px;gap:44px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-icon{width:38px;height:38px;border-radius:10px;box-shadow:0 4px 16px -4px rgba(1,250,227,.4)}
.brand-text strong{display:block;font-size:16.5px;line-height:1.15;color:#fff}
.brand-text em{font-style:normal;font-size:9.5px;letter-spacing:.26em;color:var(--txt-3);font-weight:600}
.nav-links{display:flex;align-items:center;gap:clamp(16px,1.7vw,30px)}
.nav-links a{font-size:15px;color:var(--txt-2);font-weight:500;position:relative;padding:6px 0;transition:color .2s}
.nav-links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;border-radius:2px;
  background:var(--grad-btn);transition:right .28s ease;
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{right:0}
.nav-links a[aria-current="page"]{color:#fff;font-weight:600}
.nav-links a[aria-current="page"]::after{right:0}
.nav-cta-m{display:none}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-burger{display:none;flex-direction:column;gap:4.5px;padding:8px}
.nav-burger span{width:20px;height:2px;background:#fff;border-radius:2px}

/* ---------- 首屏 ---------- */
.hero{position:relative;padding:calc(70px + clamp(52px,8vh,110px)) 0 60px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:clamp(40px,5vw,88px);align-items:center;position:relative;z-index:1}
.hero-copy h1{
  font-size:clamp(40px,4.8vw,84px);line-height:1.18;font-weight:800;color:#fff;
  letter-spacing:.01em;margin-bottom:24px;
}
.h1-grad{
  background:linear-gradient(92deg,#10acdf 0%,#01fae3 30%,#9cc8ff 62%,#01fae3 88%,#10acdf 100%);
  background-size:250% 100%;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:flow 7s linear infinite;
}
@keyframes flow{0%{background-position:0% 0}100%{background-position:250% 0}}
.hero-sub{color:var(--txt-2);font-size:clamp(15px,1.4vw,19px);max-width:520px;margin-bottom:38px}
.hero-cta{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.hero-meta{margin-top:22px;color:var(--txt-3);font-size:13px}

/* 渐变悬浮卡片（JS tilt 3D） */
.hero-card{
  position:relative;border-radius:30px;aspect-ratio:16/10.4;
  background:var(--grad-hero-card);overflow:hidden;
  box-shadow:0 50px 140px -36px rgba(114,173,244,.45);
  transform-style:preserve-3d;will-change:transform;
  transition:transform .16s ease-out;
}
.mini-clip{
  position:absolute;border-radius:14px;overflow:hidden;
  border:3px solid rgba(255,255,255,.92);background:#fff;
  box-shadow:0 18px 44px -14px rgba(11,42,80,.45);
  animation:floaty 5.6s ease-in-out infinite alternate;
}
.mini-clip img{width:100%;height:100%;object-fit:cover;aspect-ratio:1/1.05}
.mini-clip em{
  position:absolute;right:7px;bottom:7px;font-style:normal;font-size:11px;font-weight:600;
  color:#fff;background:rgba(0,0,0,.45);padding:1px 7px;border-radius:6px;backdrop-filter:blur(4px);
}
.mc1{width:27%;top:7%;left:9%;animation-delay:0s}
.mc2{width:27%;top:4%;left:40%;animation-delay:.7s}
.mc3{width:27%;top:9%;right:8%;animation-delay:1.4s}
.mc4{width:27%;bottom:23%;left:20%;animation-delay:2.1s}
.mc5{width:27%;bottom:26%;right:16%;animation-delay:2.8s}
@keyframes floaty{from{transform:translateY(-6px)}to{transform:translateY(7px)}}
.hero-pills{
  position:absolute;left:0;right:0;bottom:5.5%;
  display:flex;justify-content:center;gap:12px;
}
.hero-pills span{
  padding:9px 22px;border-radius:999px;font-size:13.5px;font-weight:600;
  color:#123;background:rgba(255,255,255,.42);backdrop-filter:blur(8px);
}
.hero-pills span.on{background:#fff;color:#0b1220;box-shadow:0 8px 20px -6px rgba(11,42,80,.4)}

.scroll-hint{
  display:flex;flex-direction:column;align-items:center;gap:2px;
  margin-top:66px;color:var(--txt-3);font-size:13px;
}
.scroll-hint svg{width:20px;height:20px;animation:bob 1.6s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0);opacity:.55}50%{transform:translateY(6px);opacity:1}}
.scroll-hint:hover{color:var(--txt-2)}

/* ---------- 卡片通用（鼠标跟随光效） ---------- */
.spot{position:relative}
.spot::before{
  content:"";position:absolute;inset:0;z-index:1;border-radius:inherit;pointer-events:none;
  background:radial-gradient(340px circle at var(--mx,50%) var(--my,50%),rgba(1,250,227,.13),transparent 68%);
  opacity:0;transition:opacity .35s ease;
}
.spot:hover::before{opacity:1}

/* ---------- Bento 卡片区 ---------- */
.tab-pills{
  display:flex;justify-content:center;gap:6px;width:max-content;margin:0 auto 46px;
  background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:5px;
}
.tp{padding:10px 28px;border-radius:9px;font-size:14.5px;font-weight:600;color:var(--txt-2);transition:.25s}
.tp:hover{color:var(--txt)}
.tp.on{background:var(--panel-3);color:#fff}
.bento{
  display:grid;gap:20px;
  grid-template-columns:1.55fr 1.05fr 1.3fr;
  grid-template-areas:"a b c" "d e c";
  grid-auto-rows:clamp(238px,17vw,300px);
  transition:opacity .22s ease,transform .22s ease;
}
.bento.fading{opacity:0;transform:translateY(10px)}
.bento.hidden{display:none}
.b-a{grid-area:a}.b-b{grid-area:b}.b-c{grid-area:c}.b-d{grid-area:d}.b-e{grid-area:e}
.bcard{
  position:relative;border-radius:20px;overflow:hidden;margin:0;
  border:1px solid var(--line-soft);background:var(--panel);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s;
}
.bcard:hover{transform:translateY(-5px);box-shadow:var(--shadow-cyan);border-color:rgba(1,250,227,.25)}
.bcard img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;transition:transform .55s ease}
.bcard:hover img{transform:scale(1.06)}
.bcard::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 42%,rgba(0,0,0,.72) 88%);
}
.bcard figcaption{position:absolute;left:20px;right:20px;bottom:18px;z-index:2}
.btag{
  display:inline-block;background:#fff;color:#0b1220;font-size:13px;font-weight:700;
  padding:4px 13px;border-radius:7px;margin-bottom:8px;
}
.bcard figcaption p{color:rgba(255,255,255,.88);font-size:13px;line-height:1.55;text-shadow:0 1px 8px rgba(0,0,0,.5)}

/* ---------- 五大模块（左标签 + 视频位） ---------- */
#modules{position:relative}
.mod-wrap{
  display:grid;grid-template-columns:320px 1fr;gap:clamp(30px,4vw,64px);
  align-items:stretch;position:relative;z-index:1;
}
.mod-side{display:flex;flex-direction:column;gap:18px}
.mod-tabs{display:flex;flex-direction:column;gap:6px}
.mtab{
  text-align:left;padding:16px 18px;border-radius:14px;
  border:1px solid transparent;transition:.28s;
}
.mtab h4{font-size:15.5px;font-weight:600;color:var(--txt-2);transition:color .25s}
.mtab p{font-size:12.5px;color:var(--txt-3);line-height:1.65;margin-top:6px;max-height:0;opacity:0;overflow:hidden;transition:.32s ease}
.mtab:hover h4{color:#fff}
.mtab.on{background:var(--panel-2);border-color:var(--line)}
.mtab.on h4{color:var(--cyan-2)}
.mtab.on p{max-height:120px;opacity:1}
.mod-more{padding:0 18px}
.video-slot{
  position:relative;border-radius:24px;overflow:hidden;min-height:460px;
  border:1px solid var(--line-soft);background:var(--panel);
}
.slot-poster{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:opacity .3s ease}
.slot-poster.fading{opacity:0}
.video-slot::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,0,0,.12),transparent 30%,transparent 62%,rgba(0,0,0,.55));
  pointer-events:none;
}
.slot-badge{
  position:absolute;top:16px;right:16px;z-index:2;
  font-size:12px;font-weight:600;color:var(--cyan-2);
  background:rgba(0,0,0,.55);border:1px solid rgba(1,250,227,.35);
  padding:5px 13px;border-radius:999px;backdrop-filter:blur(8px);
}
.slot-play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2;
  width:80px;height:80px;border-radius:50%;background:rgba(255,255,255,.94);
  display:grid;place-items:center;color:#0b1220;cursor:pointer;
  box-shadow:0 16px 44px -8px rgba(0,0,0,.55);transition:transform .25s ease;
}
.slot-play:hover{transform:translate(-50%,-50%) scale(1.08)}
.slot-play svg{width:31px;height:31px;margin-left:3px;position:relative;z-index:1}
.slot-play .pulse{
  position:absolute;inset:-6px;border-radius:50%;
  border:2px solid rgba(1,250,227,.7);animation:pulse 2s ease-out infinite;
}
@keyframes pulse{0%{transform:scale(.9);opacity:.9}100%{transform:scale(1.5);opacity:0}}
.slot-cap{
  position:absolute;left:18px;bottom:16px;z-index:2;
  font-size:13px;color:#fff;font-weight:600;
  background:rgba(0,0,0,.5);border:1px solid var(--line-soft);
  padding:6px 14px;border-radius:999px;backdrop-filter:blur(8px);
}

/* ---------- 场景方案 ---------- */
.scene-row{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.scard{
  position:relative;border-radius:20px;overflow:hidden;aspect-ratio:3/4.1;
  border:1px solid var(--line-soft);background:var(--panel);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s;
}
.scard:hover{transform:translateY(-7px);box-shadow:var(--shadow-cyan);border-color:rgba(1,250,227,.25)}
.scard img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.scard:hover img{transform:scale(1.07)}
.scard::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(0,0,0,.82) 92%);
}
.s-info{position:absolute;left:0;right:0;bottom:0;z-index:1;padding:20px}
.s-info h4{color:#fff;font-size:17px;font-weight:700;margin-bottom:5px}
.s-info p{color:rgba(255,255,255,.72);font-size:11.5px;line-height:1.6}

/* ---------- 数据条 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{
  position:relative;overflow:hidden;text-align:center;
  background:linear-gradient(180deg,var(--panel-2),var(--panel));
  border:1px solid var(--line);border-radius:20px;padding:40px 24px 36px;
  transition:transform .3s ease,border-color .3s,box-shadow .3s;
}
.stat:hover{transform:translateY(-5px);border-color:rgba(1,250,227,.3);box-shadow:var(--shadow-cyan)}
.stat b{
  display:block;font-size:clamp(38px,3.8vw,58px);font-weight:800;line-height:1.15;
  background:var(--grad-btn);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat span{display:block;margin-top:10px;color:var(--txt-2);font-size:14.5px;font-weight:500}

/* ---------- 下载 ---------- */
.dl{position:relative;padding:clamp(100px,11vw,160px) 0;overflow:hidden;text-align:center}
.dl-inner{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center}
.dl-icon{width:68px;height:68px;border-radius:17px;margin-bottom:30px;box-shadow:0 16px 48px -10px rgba(1,250,227,.4)}
.dl h2{font-size:clamp(32px,3.8vw,54px);font-weight:800;line-height:1.35;color:#fff;margin-bottom:24px}
.dl-line{color:var(--txt-2);font-size:15px;margin-bottom:10px}
.dl-note{color:var(--txt-3);font-size:13px;margin-bottom:38px}
.dl-link{color:var(--cyan-2);margin-left:6px}
.dl-link:hover{text-decoration:underline}

/* ---------- FAQ（置于最底部，下载区之后） ---------- */
#faq{padding-bottom:clamp(60px,7vw,100px)}
.faq-list,.news-list{max-width:880px;margin:0 auto;display:grid;gap:14px}
.faq-item,.news-item{
  border:1px solid var(--line);border-radius:15px;background:var(--panel);
  transition:border-color .3s,box-shadow .3s;
}
.faq-item[open],.news-item[open]{border-color:rgba(1,250,227,.28);box-shadow:0 20px 50px -28px rgba(1,250,227,.25)}
.faq-item summary,.news-item summary{
  cursor:pointer;padding:20px 26px;font-weight:600;font-size:15.5px;color:#fff;
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:18px;
}
.faq-item summary::-webkit-details-marker,.news-item summary::-webkit-details-marker{display:none}
.faq-item summary::after,.news-item summary::after{
  content:"+";font-size:23px;font-weight:400;color:var(--txt-3);line-height:1;flex:none;
  transition:transform .25s ease,color .25s ease;
}
.faq-item[open] summary::after,.news-item[open] summary::after{transform:rotate(45deg);color:var(--cyan-2)}
.faq-a{padding:0 26px 24px;color:var(--txt-2);line-height:1.85;font-size:14.5px}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.news-cat{
  flex:none;font-size:12px;font-weight:700;padding:3px 11px;border-radius:999px;
  color:var(--cyan-2);background:rgba(1,250,227,.08);border:1px solid rgba(1,250,227,.3);
}
.news-cat.gray{color:#9cc8ff;background:rgba(114,173,244,.08);border-color:rgba(114,173,244,.3)}
.news-item time{color:var(--txt-3);font-size:13px}
.news-item summary .ntitle{flex:1;font-size:16px;line-height:1.5}
.news-body{padding:0 26px 24px;color:var(--txt-2);line-height:1.95;font-size:14.5px}
.news-body p{margin-bottom:12px}
.news-body a{color:var(--cyan-2)}

/* ---------- 页脚（四列） ---------- */
.footer{border-top:1px solid var(--line);padding:56px 0 44px;background:linear-gradient(180deg,transparent,rgba(14,17,22,.6))}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.f-brand img{width:38px;height:38px;border-radius:10px;margin-bottom:14px}
.f-brand strong{display:block;color:#fff;font-size:16px;margin-bottom:6px}
.f-brand p{color:var(--txt-3);font-size:12.5px;line-height:1.9;max-width:320px}
.f-col h5{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.04em}
.f-col a,.f-col span{display:block;color:var(--txt-2);font-size:13px;line-height:2.2;transition:color .2s}
.f-col a:hover{color:var(--cyan-2)}
.f-bottom{border-top:1px solid var(--line);margin-top:44px;padding-top:22px;text-align:center;color:var(--txt-3);font-size:12.5px}

/* ---------- 子页页头 ---------- */
.page-head{position:relative;padding:calc(70px + clamp(64px,9vh,104px)) 0 10px;text-align:center;overflow:hidden}
.page-head .crumb{font-size:12.5px;color:var(--txt-3);letter-spacing:.28em;font-weight:600;margin-bottom:18px}
.page-head h1{font-size:clamp(36px,4.6vw,64px);font-weight:800;line-height:1.25}
.page-head h1 em{
  font-style:normal;
  background:linear-gradient(92deg,#10acdf,#01fae3 55%,#7cc0ff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-head .lede{color:var(--txt-2);font-size:clamp(15px,1.3vw,17.5px);max-width:680px;margin:18px auto 0}

/* ---------- 产品功能页：图文交替 ---------- */
.fblock{
  display:grid;grid-template-columns:1fr 1.08fr;gap:clamp(36px,5vw,90px);align-items:center;
  padding:clamp(44px,5.5vw,76px) 0;
}
.fblock.rev .fmedia{order:-1}
.fmedia{position:relative;border-radius:26px;overflow:hidden;border:1px solid var(--line-soft);box-shadow:0 34px 90px -34px rgba(16,172,223,.35)}
.fmedia img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .55s ease}
.fmedia:hover img{transform:scale(1.04)}
.fmedia::after{content:"";position:absolute;inset:0;background:linear-gradient(200deg,rgba(1,250,227,.1),transparent 42%)}
.fidx{
  font-size:13px;font-weight:700;letter-spacing:.22em;color:var(--cyan-2);margin-bottom:14px;
}
.fblock h3{font-size:clamp(26px,2.6vw,38px);font-weight:800;margin-bottom:16px}
.fblock .fdesc{color:var(--txt-2);font-size:15.5px;line-height:1.9;margin-bottom:22px;max-width:560px}
.flist{display:grid;gap:11px;margin-bottom:26px}
.flist li{list-style:none;display:flex;gap:10px;align-items:flex-start;color:var(--txt-2);font-size:14.5px;line-height:1.7}
.flist li svg{width:17px;height:17px;flex:none;margin-top:4px;color:var(--cyan-2)}

/* 工具四卡 */
.tools-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.tcard{
  position:relative;overflow:hidden;border-radius:20px;padding:30px 26px;
  background:linear-gradient(180deg,var(--panel-2),var(--panel));
  border:1px solid var(--line);transition:transform .3s,box-shadow .3s,border-color .3s;
}
.tcard:hover{transform:translateY(-6px);box-shadow:var(--shadow-cyan);border-color:rgba(1,250,227,.28)}
.tcard .tico{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;margin-bottom:18px;
  background:linear-gradient(135deg,rgba(16,172,223,.2),rgba(1,250,227,.12));
  border:1px solid rgba(1,250,227,.3);color:var(--cyan-2);
}
.tcard .tico svg{width:22px;height:22px}
.tcard h4{color:#fff;font-size:17px;font-weight:700;margin-bottom:10px}
.tcard p{color:var(--txt-2);font-size:13.5px;line-height:1.8}

/* ---------- 版本日志时间线 ---------- */
.timeline{position:relative;max-width:920px;margin:0 auto;padding-left:44px}
.timeline::before{
  content:"";position:absolute;left:9px;top:10px;bottom:24px;width:2px;
  background:linear-gradient(180deg,var(--cyan-1),rgba(1,250,227,.08));
}
.tver{position:relative;padding-bottom:clamp(40px,4.5vw,58px)}
.tver:last-child{padding-bottom:0}
.tver::before{
  content:"";position:absolute;left:-44px;top:6px;width:20px;height:20px;border-radius:50%;
  background:var(--bg);border:3px solid rgba(1,250,227,.4);transition:.3s;
}
.tver.current::before{border-color:var(--cyan-2);background:var(--cyan-2);box-shadow:0 0 22px rgba(1,250,227,.65)}
.ver-head{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:8px}
.ver-head h3{font-size:clamp(22px,2.2vw,30px);font-weight:800;color:#fff}
.ver-head time{color:var(--txt-3);font-size:13.5px}
.ver-now{
  font-size:12px;font-weight:700;color:var(--ink-on-grad);background:var(--grad-btn);
  padding:3px 12px;border-radius:999px;
}
.ver-sum{color:var(--txt-2);font-size:14.5px;margin-bottom:16px}
.tgroup{display:grid;gap:9px;margin-top:14px}
.trow{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--txt-2);line-height:1.75}
.tmark{
  flex:none;font-size:12px;font-weight:700;padding:2px 10px;border-radius:6px;margin-top:2px;
}
.tm-new{color:#01fae3;background:rgba(1,250,227,.1);border:1px solid rgba(1,250,227,.3)}
.tm-opt{color:#9cc8ff;background:rgba(114,173,244,.1);border:1px solid rgba(114,173,244,.3)}
.tm-fix{color:#f2b950;background:rgba(242,185,80,.08);border:1px solid rgba(242,185,80,.3)}
.tver-head-block{padding-bottom:8px;border-bottom:1px dashed var(--line);margin-bottom:18px}

/* ---------- 合作咨询 ---------- */
.partner-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pcard{
  position:relative;overflow:hidden;border-radius:20px;padding:32px 26px;
  background:linear-gradient(180deg,var(--panel-2),var(--panel));
  border:1px solid var(--line);transition:transform .3s,box-shadow .3s,border-color .3s;
}
.pcard:hover{transform:translateY(-6px);box-shadow:var(--shadow-cyan);border-color:rgba(1,250,227,.28)}
.pcard .pico{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;margin-bottom:18px;
  background:linear-gradient(135deg,rgba(16,172,223,.22),rgba(1,250,227,.1));
  border:1px solid rgba(1,250,227,.3);color:var(--cyan-2);
}
.pcard .pico svg{width:23px;height:23px}
.pcard h4{color:#fff;font-size:17.5px;font-weight:700;margin-bottom:10px}
.pcard p{color:var(--txt-2);font-size:13.5px;line-height:1.85}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{
  position:relative;border-radius:20px;border:1px dashed var(--line);padding:30px 24px 26px;
  background:rgba(14,17,22,.5);counter-increment:step;
}
.step::before{
  content:"0" counter(step);
  display:block;font-size:15px;font-weight:800;letter-spacing:.12em;margin-bottom:14px;
  background:var(--grad-btn);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.step h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:8px}
.step p{color:var(--txt-2);font-size:13px;line-height:1.8}
.benefits{display:grid;grid-template-columns:1fr 1fr;gap:14px;max-width:920px;margin:0 auto}
.bene{
  display:flex;gap:14px;align-items:flex-start;border:1px solid var(--line);border-radius:16px;
  padding:20px 22px;background:rgba(14,17,22,.45);
}
.bene svg{width:20px;height:20px;flex:none;margin-top:3px;color:var(--cyan-2)}
.bene h5{color:#fff;font-size:15px;font-weight:700;margin-bottom:4px}
.bene p{color:var(--txt-2);font-size:13px;line-height:1.75}

/* 表单 */
.form-wrap{max-width:860px;margin:0 auto;border:1px solid var(--line);border-radius:24px;background:linear-gradient(180deg,rgba(18,21,27,.7),rgba(14,17,22,.4));padding:clamp(28px,4vw,48px);position:relative;overflow:hidden}
.form{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:9px}
.field.full{grid-column:1/-1}
.field label{font-size:13.5px;color:var(--txt-2);font-weight:600}
.field label i{font-style:normal;color:var(--cyan-2);margin-left:3px}
.field input,.field select,.field textarea{
  width:100%;background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:14px 16px;color:var(--txt);font:inherit;font-size:14.5px;outline:none;
  transition:border-color .25s,box-shadow .25s,background .25s;
}
.field textarea{min-height:120px;resize:vertical}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--txt-3) 50%),linear-gradient(135deg,var(--txt-3) 50%,transparent 50%);background-position:calc(100% - 22px) 50%,calc(100% - 16px) 50%;background-size:6px 6px;background-repeat:no-repeat}
.field :is(input,select,textarea):focus{border-color:rgba(1,250,227,.55);box-shadow:0 0 0 4px rgba(1,250,227,.12);background:var(--panel-2)}
.field input::placeholder,.field textarea::placeholder{color:var(--txt-3)}
.form-foot{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-top:6px}
.form-privacy{color:var(--txt-3);font-size:12.5px}
.form-ok{
  text-align:center;padding:clamp(30px,4vw,50px) 20px;
  display:flex;flex-direction:column;align-items:center;gap:14px;
}
.form-ok .okico{
  width:64px;height:64px;border-radius:50%;display:grid;place-items:center;color:var(--ink-on-grad);
  background:var(--grad-btn);box-shadow:0 14px 40px -10px rgba(1,250,227,.55);
}
.form-ok .okico svg{width:30px;height:30px}
.form-ok h3{color:#fff;font-size:22px;font-weight:800}
.form-ok p{color:var(--txt-2);font-size:14.5px;max-width:460px;line-height:1.85}
.form-ok .form-tip{color:var(--txt-3);font-size:12.5px}
[hidden]{display:none !important}

/* ---------- 关于我们 ---------- */
.about-story{max-width:880px;margin:0 auto;text-align:center}
.about-story p{color:var(--txt-2);font-size:clamp(15px,1.35vw,17.5px);line-height:2.05;margin-bottom:20px}
.about-story p strong{color:#fff}
.mv-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:1060px;margin:0 auto}
.mv{
  border-radius:22px;padding:clamp(30px,3.5vw,44px);position:relative;overflow:hidden;
  border:1px solid var(--line);background:linear-gradient(160deg,rgba(16,172,223,.1),rgba(14,17,22,.6) 55%);
}
.mv h4{color:#fff;font-size:clamp(19px,1.9vw,24px);font-weight:800;margin-bottom:12px}
.mv p{color:var(--txt-2);font-size:14.5px;line-height:1.95}
.ms-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.ms{
  border-left:2px solid rgba(1,250,227,.35);padding:4px 0 4px 20px;
}
.ms time{display:block;font-size:13px;font-weight:700;color:var(--cyan-2);letter-spacing:.06em;margin-bottom:8px}
.ms h5{color:#fff;font-size:15px;font-weight:700;margin-bottom:6px}
.ms p{color:var(--txt-2);font-size:12.5px;line-height:1.75}
.contact-band{
  border:1px solid var(--line);border-radius:26px;padding:clamp(36px,5vw,64px);
  background:linear-gradient(135deg,rgba(16,172,223,.12),rgba(14,17,22,.5) 50%,rgba(114,173,244,.08));
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.contact-band h3{font-size:clamp(22px,2.4vw,32px);font-weight:800;color:#fff;margin-bottom:8px}
.contact-band p{color:var(--txt-2);font-size:14.5px}
.contact-band .cb-btns{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- CTA 横带（子页底部） ---------- */
.cta-band{
  position:relative;overflow:hidden;text-align:center;
  border:1px solid rgba(1,250,227,.18);border-radius:30px;
  padding:clamp(48px,6vw,84px) clamp(24px,4vw,60px);
  background:
    radial-gradient(900px 320px at 50% -80px,rgba(1,250,227,.14),transparent 70%),
    linear-gradient(180deg,rgba(18,21,27,.8),rgba(10,12,16,.9));
}
.cta-band h2{font-size:clamp(28px,3.4vw,46px);font-weight:800;color:#fff;margin-bottom:16px;line-height:1.35}
.cta-band p{color:var(--txt-2);font-size:15px;margin-bottom:34px}
.cta-band .btn-grad{margin-top:2px}

/* ---------- 入场动画 ---------- */
body.js .reveal{
  opacity:0;transform:translateY(34px);
  transition:opacity .9s ease var(--d,0s),transform .9s cubic-bezier(.16,1,.3,1) var(--d,0s);
}
body.js .reveal.visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1440px){
  .tools-grid,.partner-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .ms-row{grid-template-columns:repeat(2,1fr);gap:26px}
}
@media (max-width:1280px){
  .scene-row{grid-template-columns:repeat(3,1fr)}
  .mod-wrap{grid-template-columns:280px 1fr}
}
@media (max-width:1120px){
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:960px){
  .nav-inner{gap:20px}
  .nav-links{
    position:fixed;top:70px;left:0;right:0;flex-direction:column;align-items:flex-start;
    background:rgba(5,6,10,.97);padding:24px 5vw 28px;gap:22px;display:none;
    border-bottom:1px solid var(--line);
  }
  body.menu-open .nav-links{display:flex}
  .nav-cta-m{display:block;font-size:15px;color:#fff !important}
  .nav-right .btn-dark{display:none}
  .nav-burger{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero-copy{text-align:center}
  .hero-sub{margin-inline:auto}
  .hero-cta{justify-content:center}
  .hero-card{max-width:680px;margin-inline:auto;width:100%}
  .mod-wrap{grid-template-columns:1fr}
  .mod-tabs{flex-direction:row;overflow-x:auto;gap:10px;padding-bottom:6px;scrollbar-width:none}
  .mod-tabs::-webkit-scrollbar{display:none}
  .mtab{flex:0 0 auto;max-width:240px}
  .mtab p{display:none}
  .video-slot{min-height:340px}
  .fblock{grid-template-columns:1fr;gap:30px;padding:38px 0}
  .fblock.rev .fmedia{order:0}
  .benefits{grid-template-columns:1fr}
  .mv-grid{grid-template-columns:1fr}
  .form{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .bento{grid-template-columns:1fr 1fr;grid-template-areas:none;grid-auto-rows:200px}
  .b-a,.b-b,.b-c,.b-d,.b-e{grid-area:auto}
  .b-c{grid-row:span 2}
  .scene-row{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:620px){
  .bento{grid-template-columns:1fr;grid-auto-rows:210px}
  .b-c{grid-row:auto}
  .scene-row{grid-template-columns:repeat(2,1fr);gap:12px}
  .s-info{padding:12px}
  .s-info h4{font-size:14px}
  .s-info p{font-size:10px}
  .hero-pills span{padding:7px 14px;font-size:12px}
  .btn-grad{width:100%;justify-content:center}
  .hero-cta .btn-grad{width:100%}
  .hero-cta .btn-dark{width:100%;justify-content:center}
  .slot-play{width:60px;height:60px}
  .faq-item summary,.news-item summary{padding:16px 18px;font-size:14.5px}
  .faq-a,.news-body{padding:0 18px 18px}
  .tab-pills{width:100%;justify-content:stretch}
  .tp{flex:1;padding:10px 8px;font-size:13.5px}
  .tools-grid,.partner-grid,.steps,.ms-row{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr);gap:12px}
  .stat{padding:26px 14px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .form-foot{flex-direction:column;align-items:stretch}
  .timeline{padding-left:34px}
  .tver::before{left:-34px}
  .contact-band{flex-direction:column;align-items:flex-start}
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  body{animation:none}
  body.js .reveal{opacity:1;transform:none;transition:none}
  .mini-clip,.scroll-hint svg,.slot-play .pulse,.btn-grad::before,.h1-grad{animation:none}
  .bcard img,.scard img,.bcard,.scard,.btn-grad,.btn-dark,.hero-card,.stat,.tcard,.pcard{transition:none}
  .spot::before{display:none}
}