*,*::before,*::after{box-sizing:border-box}
  :root{
    --bg:#0A0A0A;
    --bg2:#101010;
    --fg:#FFFFFF;
    --fg2:#B4B4B4;
    --fg3:#7E7E7E;
    --line:rgba(255,255,255,.12);
    --brand:#FF0000;
    --gut:clamp(20px,4.6vw,80px);
    --ease:cubic-bezier(.16,1,.3,1);
    --zh:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
    --en:"Helvetica Neue",Helvetica,"Segoe UI",sans-serif;
    --mono:"SF Mono","JetBrains Mono",Consolas,"Courier New",monospace;
  }
  html,body{margin:0;padding:0;background:var(--bg)}
  body{color:var(--fg);font-family:var(--zh);
    -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
  img{display:block;max-width:100%}
  a{color:inherit;text-decoration:none}
  ul{margin:0;padding:0;list-style:none}

  /* ================= HERO ================= */
  .hero{position:relative;height:100vh;min-height:640px;overflow:hidden;background:var(--bg)}

  .hero-img{
    position:absolute;inset:0;width:100%;height:100%;
    object-fit:cover;object-position:center;
    z-index:0;opacity:1;
    transition:opacity .7s var(--ease),transform 9s linear;
  }
  .hero-img.is-out{opacity:0}
  .hero-img.is-zoom{transform:scale(1.05)}

  /* 压暗层：左下最暗保证文字可读，右上留亮给产品 */
  .veil{
    position:absolute;inset:0;z-index:1;pointer-events:none;
    /* 最后一层纯色：把明度不一的轮播图拉到同一暗度档位，越亮的压得越多 */
    background:
      linear-gradient(to top, rgba(10,10,10,.95) 0%, rgba(10,10,10,.66) 24%, rgba(10,10,10,.14) 50%, rgba(10,10,10,.28) 100%),
      linear-gradient(to right, rgba(10,10,10,.66) 0%, rgba(10,10,10,.22) 36%, transparent 66%),
      rgba(8,8,8,.5);
  }
  .glow{position:absolute;border-radius:50%;pointer-events:none;z-index:2}
  .glow-a{width:46vw;height:46vw;left:-18vw;top:-16vw;
    background:radial-gradient(circle,rgba(255,0,0,.22),transparent 68%);filter:blur(30px)}
  .glow-b{width:40vw;height:40vw;right:-16vw;bottom:-18vw;
    background:radial-gradient(circle,rgba(255,0,0,.13),transparent 70%);filter:blur(34px)}

  /* ---- NAV ---- */
  .nav{
    position:relative;z-index:6;display:flex;align-items:center;justify-content:space-between;
    gap:32px;padding:0 var(--gut);height:88px;border-bottom:1px solid rgba(255,255,255,.10);
  }
  .nav-logo img{height:32px;width:auto}
  .nav-links{display:flex;gap:clamp(20px,2.4vw,40px)}
  .nav-links a{font-size:13px;letter-spacing:.16em;color:var(--fg2);transition:color .3s var(--ease)}
  .nav-links a:hover{color:#fff}
  .nav-tel{font-family:var(--en);font-size:14px;letter-spacing:.05em;color:var(--fg);
    font-variant-numeric:tabular-nums;display:flex;align-items:center;gap:9px}
  .nav-tel::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);
    box-shadow:0 0 10px 2px rgba(255,0,0,.6)}

  /* ---- 文案 ---- */
  .copy{
    position:absolute;z-index:5;left:var(--gut);right:var(--gut);
    bottom:clamp(52px,9vh,92px);max-width:min(880px,74vw);
  }
  .caption{
    display:flex;align-items:center;gap:13px;
    font-size:12px;letter-spacing:.2em;color:rgba(255,255,255,.6);
    margin:0 0 clamp(16px,2.4vh,24px);
  }
  .caption::before{content:"";width:28px;height:1px;background:var(--brand);flex:0 0 28px}
  .caption b{color:#fff;font-weight:500;letter-spacing:.16em;transition:opacity .4s var(--ease)}

  .copy h1{
    font-size:clamp(46px,6.4vw,106px);line-height:1.08;letter-spacing:-.03em;
    font-weight:600;margin:0;text-shadow:0 6px 50px rgba(0,0,0,.75);
  }
  .copy h1 .l{display:block;white-space:nowrap}
  .copy h1 .hl{color:var(--brand);text-shadow:0 0 52px rgba(255,0,0,.5)}

  .sub{
    font-size:clamp(15px,1.05vw,17px);line-height:1.9;color:var(--fg2);
    margin:clamp(22px,3.2vh,34px) 0 0;letter-spacing:.02em;
  }
  .cta{display:flex;align-items:center;gap:clamp(20px,2.4vw,34px);margin-top:clamp(28px,4.2vh,46px);flex-wrap:wrap}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;height:54px;padding:0 38px;
    background:var(--brand);color:#fff;font-size:14px;letter-spacing:.14em;
    box-shadow:0 12px 44px -10px rgba(255,0,0,.7);
    transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease);
  }
  .btn:hover{background:#E00000;transform:translateY(-2px);box-shadow:0 18px 50px -10px rgba(255,0,0,.85)}
  .btn:active{transform:translateY(0)}
  .link{
    display:inline-flex;align-items:center;gap:9px;height:54px;padding:0 26px;
    border:1px solid rgba(255,255,255,.3);font-size:14px;letter-spacing:.12em;color:#fff;
    transition:border-color .3s var(--ease),background .3s var(--ease);
  }
  .link:hover{border-color:#fff;background:rgba(255,255,255,.07)}
  .link .arw{transition:transform .4s var(--ease)}
  .link:hover .arw{transform:translateX(4px)}

  /* ---- 右侧：序号 + 进度 ---- */
  .pager{
    position:absolute;z-index:6;right:var(--gut);bottom:clamp(52px,9vh,92px);
    display:flex;align-items:center;gap:18px;
    font-family:var(--mono);font-size:13px;letter-spacing:.12em;color:rgba(255,255,255,.6);
    font-variant-numeric:tabular-nums;
  }
  .pager .num b{color:#fff;font-weight:400}
  .pager .bars{display:flex;gap:8px}
  .pg{
    width:30px;height:3px;border:0;padding:0;cursor:pointer;
    background:rgba(255,255,255,.3);
    transition:background .35s var(--ease),width .45s var(--ease);
  }
  .pg:hover{background:rgba(255,255,255,.66)}
  .pg.is-on{background:var(--brand);width:52px}

  /* ---- 滚动提示 ---- */
  .hint{
    position:absolute;z-index:6;left:50%;bottom:26px;transform:translateX(-50%);
    display:flex;flex-direction:column;align-items:center;gap:9px;
    font-size:10px;letter-spacing:.28em;color:rgba(255,255,255,.42);
  }
  .hint i{display:block;width:1px;height:36px;background:linear-gradient(to bottom,var(--brand),transparent)}

  /* ================= 服务栏目（保留原站交互，只换背景） =================
     原站三层交互照搬：
       1) -webkit-text-stroke 空心描边字 + data-hovering 宽度动画 → hover 时被实心填充
       2) wow rotateInUpLeft + 0.2s 递增延迟 → 子项逐条从左下旋入
       3) data-swiper-parallax → 视差（这里改作用在背景上，避免和旋入动画抢 transform）
     背景由「几何方块阵列」换成自家产品阵列图（摩托音响A.1623，压暗后当深色底） */
  .svc{position:relative;overflow:hidden;background:#0A0A0A;
    padding:clamp(64px,9vh,110px) 0 clamp(72px,10vh,120px)}
  .svc-bg{
    position:absolute;left:0;right:0;top:-8%;bottom:-8%;
    background:url(/skin/images/home-v2/svc-bg.webp) center/cover no-repeat;
    /* 摩托音响A.1624 原图本身就是深底黑产品阵列（不同于上一张的白底阵列），
       所以只需轻压一档 + 提对比，压狠了产品会整个消失 */
    filter:brightness(.55) contrast(1.12);
    will-change:transform;
  }
  .svc-veil{
    position:absolute;inset:0;pointer-events:none;
    background:linear-gradient(180deg,rgba(8,8,8,.5) 0%,rgba(8,8,8,.3) 45%,rgba(8,8,8,.56) 100%);
  }
  .svc-inner{position:relative;z-index:2;padding:0 var(--gut)}
  .svc-label{
    font-size:12px;letter-spacing:.28em;color:var(--fg3);
    margin:0 0 clamp(26px,4vh,46px);
  }

  .svc-item{max-width:64%;padding:clamp(32px,5vh,54px) 0;border-top:1px solid rgba(255,255,255,.1)}
  .svc-item:last-child{border-bottom:1px solid rgba(255,255,255,.1)}
  .svc-item.r-right{margin-left:auto;text-align:right}

  .svc-t{margin:0;font-size:clamp(32px,5.2vw,84px);font-weight:300;
    letter-spacing:-.04em;line-height:1.1}
  .svc-t a{
    position:relative;display:inline-block;color:transparent;
    -webkit-text-stroke:.9px rgba(255,255,255,.72);
  }
  .svc-t a::before{
    content:attr(data-text);
    position:absolute;left:0;top:0;width:100%;
    white-space:nowrap;
    color:#fff;-webkit-text-stroke:0;
    /* 只裁可见区域，绝不动文字位置。
       用 width:0→100% 会在右对齐时让 ::before 的左边缘随宽度左滑、文字跟着跑，
       出现「产产品外观设计创」那种重影。clip-path 只改可见范围，文字位置恒定。 */
    clip-path:inset(0 100% 0 0);
    transition:clip-path 1s cubic-bezier(.46,.02,0,1);
  }
  .svc-item:hover .svc-t a::before{clip-path:inset(0 0 0 0)}
  .svc-item.r-right .svc-t a::before{clip-path:inset(0 0 0 100%)}
  .svc-item.r-right:hover .svc-t a::before{clip-path:inset(0 0 0 0)}

  .svc-sub{margin:clamp(14px,2vh,20px) 0 0;padding:0;list-style:none}
  .svc-sub li{font-size:15px;line-height:1.95;color:rgba(255,255,255,.76);letter-spacing:.02em}
  .svc-sub li:first-child{font-size:clamp(17px,1.3vw,20px);color:#fff;font-weight:500;
    margin-bottom:2px;letter-spacing:.01em}

  /* 只在 JS 可用时才隐藏子项——避免脚本失败/无 JS 时内容永久不可见 */
  .js .svc-sub li{opacity:0}
  .js .svc-item.in .svc-sub li{
    animation:rotIn .9s cubic-bezier(.16,1,.3,1) both;
    transform-origin:left bottom;
  }
  .js .svc-item.r-right.in .svc-sub li{transform-origin:right bottom}
  @keyframes rotIn{from{opacity:0;transform:rotate(45deg)}to{opacity:1;transform:none}}
  .js .svc-item.in .svc-sub li:nth-child(1){animation-delay:.05s}
  .js .svc-item.in .svc-sub li:nth-child(2){animation-delay:.19s}
  .js .svc-item.in .svc-sub li:nth-child(3){animation-delay:.33s}
  .js .svc-item.in .svc-sub li:nth-child(4){animation-delay:.47s}
  .js .svc-item.in .svc-sub li:nth-child(5){animation-delay:.61s}

  @media (max-width:900px){
    .svc-item{max-width:100%}
    .svc-item.r-right{margin-left:0;text-align:left}
    .svc-item.r-right .svc-t a::before{clip-path:inset(0 100% 0 0)}
    .js .svc-item.r-right.in .svc-sub li{transform-origin:left bottom}
  }
  /* 注：此处原有 prefers-reduced-motion 禁用块（禁掉旋入 + 视差）。
     已按老板要求移除——他的系统开着「减少动态效果」，命中后整页全静止。 */

  /* ================= 作品墙 ================= */
  .works{background:var(--bg);border-top:1px solid var(--line)}
  .works-head{
    display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;
    padding:clamp(48px,7vh,84px) var(--gut) clamp(28px,4vh,44px);
  }
  .works-head .label{font-size:12px;letter-spacing:.28em;color:var(--fg3);margin:0}
  .works-head h2{
    margin:14px 0 0;font-size:clamp(26px,3vw,44px);font-weight:500;letter-spacing:-.02em;
  }
  .works-head .more{
    font-size:13px;letter-spacing:.12em;color:var(--fg2);
    display:inline-flex;align-items:center;gap:8px;padding-bottom:5px;
    border-bottom:1px solid rgba(255,255,255,.3);
    transition:color .3s var(--ease),border-color .3s var(--ease);
  }
  .works-head .more:hover{color:#fff;border-color:#fff}

  .works-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
  .works-grid li{position:relative;overflow:hidden;aspect-ratio:16/9;background:#141414}
  .works-grid img{width:100%;height:100%;object-fit:cover;
    filter:brightness(.82) contrast(1.05);
    transition:transform 1s var(--ease),filter .5s var(--ease)}
  .works-grid li:hover img{transform:scale(1.07);filter:brightness(1) contrast(1)}
  .works-grid li::after{
    content:"";position:absolute;inset:0;
    /* 这层渐变遮罩叠在 <a> 之上；不给 pointer-events:none 会吃掉整个封面的点击，
       表现为"只有标题能点、封面点不动" */
    pointer-events:none;
    background:linear-gradient(to top,rgba(0,0,0,.78) 0%,rgba(0,0,0,.18) 42%,transparent 68%);
  }
  .works-grid .meta{
    position:absolute;left:0;right:0;bottom:0;z-index:2;
    padding:clamp(16px,2.2vh,24px) clamp(16px,1.8vw,26px);
    display:flex;align-items:baseline;justify-content:space-between;gap:14px;
  }
  .works-grid .nm{font-size:clamp(14px,1.1vw,17px);letter-spacing:.06em;color:#fff}
  .works-grid .no{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:rgba(255,255,255,.55)}

  /* ================= 通用区块头 ================= */
  .sec{padding:clamp(64px,9vh,110px) var(--gut);border-top:1px solid var(--line)}
  .sec-head{
    display:flex;align-items:flex-end;justify-content:space-between;
    gap:24px;flex-wrap:wrap;margin-bottom:clamp(30px,4.5vh,52px);
  }
  .sec-label{font-size:12px;letter-spacing:.28em;color:var(--fg3);margin:0 0 14px}
  .sec-title{margin:0;font-size:clamp(26px,3vw,44px);font-weight:500;letter-spacing:-.02em}
  .sec-more{
    font-size:13px;letter-spacing:.12em;color:var(--fg2);
    display:inline-flex;align-items:center;gap:8px;padding-bottom:5px;
    border-bottom:1px solid rgba(255,255,255,.3);
    transition:color .3s var(--ease),border-color .3s var(--ease);
  }
  .sec-more:hover{color:#fff;border-color:#fff}

  /* ================= 关于我们 ================= */
  .about-grid{
    display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
    gap:clamp(30px,5vw,84px);align-items:start;
  }
  .about-copy p{
    font-size:clamp(14px,1vw,16px);line-height:2.05;color:var(--fg2);
    margin:0 0 18px;letter-spacing:.01em;
  }
  .about-copy p:last-child{margin-bottom:0}
  .about-copy strong{color:#fff;font-weight:500}
  .about-quote{border-left:2px solid var(--brand);padding:4px 0 4px clamp(16px,2vw,26px)}
  .about-quote p{
    font-size:clamp(14px,1vw,16px);line-height:2;color:rgba(255,255,255,.84);
    font-style:italic;margin:0;
  }
  .about-quote cite{
    display:block;font-style:normal;font-size:13px;letter-spacing:.04em;
    color:var(--fg3);margin-top:16px;
  }
  .about-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:clamp(22px,3vh,32px)}
  .about-tags i{
    font-style:normal;font-size:12px;letter-spacing:.08em;color:var(--fg2);
    border:1px solid rgba(255,255,255,.18);padding:6px 13px;border-radius:20px;
  }

  /* ================= 新闻（图文卡片） ================= */
  .news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,1.8vw,26px)}
  .news-card{display:block;background:#131313;border:1px solid rgba(255,255,255,.07);
    transition:border-color .4s var(--ease),transform .4s var(--ease)}
  .news-card:hover{border-color:rgba(255,255,255,.22);transform:translateY(-3px)}
  .news-card .pic{aspect-ratio:16/9;overflow:hidden;background:#1a1a1a}
  .news-card img{width:100%;height:100%;object-fit:cover;filter:brightness(.9);
    transition:transform 1s var(--ease),filter .5s var(--ease)}
  .news-card:hover img{transform:scale(1.05);filter:brightness(1)}
  .news-card .txt{padding:clamp(16px,1.6vw,22px)}
  .news-card h3{
    margin:0;font-size:clamp(14px,1.05vw,16px);font-weight:500;line-height:1.65;
    color:#fff;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .news-card .meta{margin-top:12px;font-size:12px;letter-spacing:.06em;color:var(--fg3)}

  /* ================= 设计文章（紧凑列表） ================= */
  .arts-list{border-top:1px solid var(--line)}
  .arts-list a{
    display:grid;grid-template-columns:minmax(0,1fr) auto;gap:clamp(16px,3vw,48px);
    align-items:baseline;padding:clamp(20px,2.6vh,30px) 0;
    border-bottom:1px solid var(--line);
    transition:padding-left .4s var(--ease),background .4s var(--ease);
  }
  .arts-list a:hover{padding-left:14px;background:rgba(255,255,255,.02)}
  .arts-list h3{
    margin:0;font-size:clamp(15px,1.2vw,19px);font-weight:400;line-height:1.6;color:#fff;
    transition:color .3s var(--ease);
  }
  .arts-list a:hover h3{color:var(--brand)}
  .arts-list .sum{margin:9px 0 0;font-size:13px;line-height:1.75;color:var(--fg3);
    display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
  .arts-list time{
    font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--fg3);
    white-space:nowrap;font-variant-numeric:tabular-nums;
  }

  /* ================= 常见问题 ================= */
  .faq-list{display:grid;gap:10px;max-width:1000px}
  .faq-list details{
    border:1px solid rgba(255,255,255,.1);background:#111;
    transition:border-color .3s var(--ease),background .3s var(--ease);
  }
  .faq-list details:hover{border-color:rgba(255,255,255,.2)}
  .faq-list details[open]{border-color:rgba(255,0,0,.42);background:#141414}
  .faq-list summary{
    list-style:none;cursor:pointer;position:relative;
    padding:clamp(16px,2vh,22px) 56px clamp(16px,2vh,22px) clamp(18px,1.8vw,26px);
    font-size:clamp(14px,1.05vw,17px);color:#fff;line-height:1.6;
  }
  .faq-list summary::-webkit-details-marker{display:none}
  .faq-list summary::after{
    content:"";position:absolute;right:clamp(18px,1.8vw,26px);top:50%;
    width:9px;height:9px;border-right:1px solid var(--fg2);border-bottom:1px solid var(--fg2);
    transform:translateY(-70%) rotate(45deg);
    transition:transform .35s var(--ease),border-color .3s var(--ease);
  }
  .faq-list details[open] summary::after{transform:translateY(-30%) rotate(-135deg);border-color:var(--brand)}
  .faq-list .ans{
    padding:0 clamp(18px,1.8vw,26px) clamp(18px,2.2vh,24px);
    font-size:clamp(13px,.95vw,15px);line-height:1.95;color:var(--fg2);
    border-top:1px solid rgba(255,255,255,.07);
    padding-top:clamp(14px,1.8vh,20px);margin-top:2px;
  }

  /* ================= 合作客户 ================= */
  .clients-wrap{overflow:hidden;position:relative;
    -webkit-mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent);
    mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent)}
  .clients-track{display:flex;gap:clamp(28px,3.4vw,52px);width:fit-content;
    animation:cliScroll 22s linear infinite}
  .clients-wrap:hover .clients-track{animation-play-state:paused}
  @keyframes cliScroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}
  .client{
    flex:0 0 auto;width:clamp(112px,10vw,158px);height:52px;
    display:flex;align-items:center;justify-content:center;
  }
  /* logo 原图是带底色的 RGB。深色页面上做单色化：白底→黑、深色标记→浅白，
     再叠 screen 混合，让残留的底色彻底融进页面，只剩标记本身 */
  .client img{
    max-width:100%;max-height:100%;width:auto;height:auto;
    /* contrast 把"接近黑但不纯黑"的残留底色压成纯黑，logo 标记压成纯白 */
    filter:grayscale(1) invert(1) brightness(1.1) contrast(1.8);
    mix-blend-mode:screen;
    opacity:.62;
    transition:opacity .35s var(--ease),filter .35s var(--ease);
  }
  .client:hover img{opacity:1;filter:grayscale(1) invert(1) brightness(1.18) contrast(1.9)}

  /* ================= 页脚 ================= */
  .ft{border-top:1px solid var(--line);background:#070707;
    padding:clamp(52px,8vh,88px) var(--gut) clamp(28px,4vh,40px)}
  .ft-grid{
    display:grid;
    grid-template-columns:minmax(0,1.1fr) repeat(3,minmax(0,.78fr)) auto;
    gap:clamp(22px,2.6vw,52px);align-items:start}
  .ft-brand img{height:28px;width:auto;margin-bottom:18px}
  .ft-brand p{font-size:13px;line-height:2.1;color:var(--fg3);margin:0;max-width:28em}
  .ft h4{margin:0 0 18px;font-size:12px;letter-spacing:.2em;color:var(--fg3);font-weight:400}
  .ft ul{margin:0;padding:0;list-style:none}
  .ft li{margin-bottom:13px;line-height:1.5}
  .ft li a,.ft li span{font-size:13px;color:var(--fg2);transition:color .3s var(--ease)}
  .ft li a:hover{color:var(--brand)}
  .ft-bot{
    margin-top:clamp(36px,5vh,60px);padding-top:clamp(20px,3vh,28px);
    border-top:1px solid rgba(255,255,255,.08);
    display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
    font-size:12px;letter-spacing:.04em;color:var(--fg3);
  }
  .ft-bot a:hover{color:#fff}

  @media (max-width:1100px){
    .about-grid{grid-template-columns:1fr}
    .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .ft-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  }
  @media (max-width:640px){
    .news-grid{grid-template-columns:1fr}
    .arts-list a{grid-template-columns:1fr;gap:8px}
    .ft-grid{grid-template-columns:1fr}
  }
  /* 注：此处原有 prefers-reduced-motion 禁用块（停掉 logo 滚动），已移除 */

  /* ================= 数据墙 ================= */
  .stats{border-top:1px solid var(--line);background:var(--bg2);
    padding:clamp(56px,9vh,104px) var(--gut)}
  .stats ul{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(24px,3vw,48px)}
  .stats li{padding-left:clamp(16px,1.8vw,26px);border-left:1px solid var(--line)}
  .stats b{display:block;font-family:var(--en);font-weight:500;
    font-size:clamp(40px,5vw,76px);line-height:1;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
  .stats b span{color:var(--brand);font-size:.55em;margin-left:2px}
  .stats em{display:block;font-style:normal;font-size:13px;letter-spacing:.1em;color:var(--fg3);margin-top:18px}

  /* ================= 入场 ================= */
  @keyframes rise{from{opacity:0;transform:translateY(38px)}to{opacity:1;transform:none}}
  @keyframes fade{from{opacity:0}to{opacity:1}}
  .hero-img{animation:fade 1.4s var(--ease) both}
  .copy>*{animation:rise 1.05s cubic-bezier(.16,1,.3,1) both}
  .copy>*:nth-child(1){animation-delay:.22s}
  .copy>*:nth-child(3){animation-delay:.60s}
  .copy>*:nth-child(4){animation-delay:.72s}
  /* 标题整体不动，改为逐行入场，节奏更明显 */
  .copy h1{animation:none}
  .copy h1 .l{animation:rise 1.05s cubic-bezier(.16,1,.3,1) both}
  .copy h1 .l:nth-child(1){animation-delay:.32s}
  .copy h1 .l:nth-child(2){animation-delay:.44s}
  .nav{animation:fade .9s var(--ease) both}
  .pager,.hint{animation:fade 1s var(--ease) 1s both}

  /* ================= 响应式 ================= */
  @media (max-width:1100px){
    .works-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  }
  @media (max-width:900px){
    .copy{max-width:100%}
    .pager{display:none}
    .stats ul{grid-template-columns:repeat(2,minmax(0,1fr))}
  }
  @media (max-width:640px){
    .nav{height:66px}
    .nav-links{display:none}
    .nav-logo img{height:25px}
    .hint{display:none}
    .works-grid{grid-template-columns:1fr}
  }
  /* 滚动入场：让整页依次浮现，避免"静态 PPT 感"。
     .reveal 由 JS 挂上——无 JS 时元素保持默认可见，不会被藏死。 */
  .reveal{opacity:0;transform:translateY(26px);
    transition:opacity .95s var(--ease),transform .95s var(--ease)}
  .reveal.in{opacity:1;transform:none}

  /* ================= 侧边工具栏 & 移动底栏（由 foot.html 输出） =================
     foot.html 自带的样式在旧 CSS 里，新版式不再加载它们，
     结果 #toolbar 变成没有定位的裸元素、二维码按原图尺寸铺开 —— 这里补回样式 */
  #toolbar{position:fixed;right:18px;bottom:112px;z-index:98;transition:opacity .35s var(--ease)}
  #toolbar ul{display:flex;flex-direction:column;gap:9px;margin:0;padding:0;list-style:none}
  #toolbar li{position:relative;margin:0}
  #toolbar li > a,#toolbar li > span{
    display:flex;align-items:center;justify-content:center;
    width:50px;height:50px;
    background:#1C1C1C;
    border:1px solid rgba(255,255,255,.22);
    box-shadow:0 6px 22px rgba(0,0,0,.5);
    transition:background .28s var(--ease),border-color .28s var(--ease),
               transform .28s var(--ease),box-shadow .28s var(--ease);
  }
  #toolbar li > a:hover,#toolbar li > span:hover{
    background:var(--brand);border-color:var(--brand);
    transform:translateX(-4px);
    box-shadow:0 8px 26px rgba(255,0,0,.42);
  }
  /* 只作用于 <a> 内的图标容器。微信那项是 li 的直接子 span，
       若让它也吃到 width/height:100%，就会丢掉按钮的尺寸和底色，看起来跟别人不一样 */
  #toolbar li > a .iconfont{display:flex;align-items:center;justify-content:center;width:100%;height:100%}
  /* 图标一律转纯白，比灰白更醒目；hover 是红底白图标 */
  #toolbar li img{
    width:22px;height:22px;object-fit:contain;
    filter:brightness(0) invert(1);opacity:1;
  }
  #toolbar li > a:hover img,#toolbar li > span:hover img{filter:brightness(0) invert(1)}
  #toolbar .wz{display:none}
  #toolbar .ewm-box{
    position:absolute;right:62px;top:50%;transform:translateY(-50%);
    display:none;width:150px;background:#fff;padding:9px;border-radius:6px;
    box-shadow:0 10px 34px rgba(0,0,0,.5);
  }
  #toolbar .ewm:hover .ewm-box{display:block}
  #toolbar .ewm-box img{width:132px;height:132px;max-width:none;display:block;filter:none;opacity:1}

  /* 移动端底部栏 */
  .lay_bottom{
    display:none;position:fixed;left:0;right:0;bottom:0;z-index:97;
    background:rgba(12,12,12,.96);
    border-top:1px solid rgba(255,255,255,.1);
  }
  .lay_bottom a{
    flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;
    padding:9px 0;font-size:11px;color:var(--fg2);
  }
  .lay_bottom img{width:21px;height:21px;object-fit:contain;
    filter:grayscale(1) invert(1) brightness(1.5);opacity:.86}
  @media (max-width:768px){
    .lay_bottom{display:flex}
    #toolbar{display:none}
    body{padding-bottom:58px}
  }

  /* ============ 模板化补充（必须写在源文件里，靠构建脚本事后追加会被冲掉） ============ */
  /* 作品墙编号：后台不给补零序号，用 CSS counter 输出 01~06 */
  .works-grid{counter-reset:w}
  .works-grid .no::before{counter-increment:w;content:counter(w,decimal-leading-zero)}
  /* 作品墙每格包了 <a> 才能点，需要铺满整格 */
  .works-grid li > a{display:block;position:relative;height:100%}
  /* foot.html 继续挂载（JSON-LD / canonical 注入 / 侧边工具栏 / 移动底栏 / 统计），
     但它自带的旧版可见页脚与新版式重复，让位 ——
     否则页面底部会叠出两套页脚，外加一个没限制尺寸的超大二维码 */
  .footer.w1660{display:none}

  /* ================= 吸顶导航（全站共用） =================
     原来 .nav 是 position:relative，跟着 hero 一起滚走；
     缩窄到 900px 以下还会把导航链接整段 display:none，等于没有导航。
     现在：固定吸顶 + 滚出首屏后实体化 + 移动端抽屉菜单。 */
  .nav{
    position:fixed;top:0;left:0;right:0;z-index:100;
    display:flex;align-items:center;justify-content:space-between;
    gap:clamp(16px,2.4vw,40px);
    padding:0 var(--gut);height:78px;
    border-bottom:1px solid transparent;
    background:transparent;
    transition:background .35s var(--ease),border-color .35s var(--ease),box-shadow .35s var(--ease);
  }
  /* 滚出首屏后：加实体底和投影，不再透明压在图上 */
  .nav.is-stuck{
    background:rgba(10,10,10,.94);
    border-bottom-color:rgba(255,255,255,.1);
    box-shadow:0 6px 26px rgba(0,0,0,.45);
  }

  /* 汉堡按钮（由 JS 注入） */
  .nav-burger{
    display:none;width:44px;height:44px;flex:0 0 auto;
    align-items:center;justify-content:center;flex-direction:column;gap:5px;
    background:transparent;border:0;padding:0;cursor:pointer;
  }
  .nav-burger span{
    display:block;width:20px;height:1.5px;background:#fff;
    transition:transform .35s var(--ease),opacity .3s var(--ease);
  }
  body.nav-open .nav-burger span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
  body.nav-open .nav-burger span:nth-child(2){opacity:0}
  body.nav-open .nav-burger span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

  /* 移动端抽屉菜单 */
  .nav-drawer{
    position:fixed;left:0;right:0;top:0;bottom:0;z-index:99;
    background:rgba(8,8,8,.985);
    padding:94px var(--gut) 40px;
    transform:translateX(100%);visibility:hidden;
    transition:transform .42s var(--ease),visibility .42s;
    overflow-y:auto;
  }
  body.nav-open .nav-drawer{transform:none;visibility:visible}
  .nav-drawer ul{list-style:none;margin:0;padding:0}
  .nav-drawer li{border-bottom:1px solid rgba(255,255,255,.08)}
  .nav-drawer li a{display:block;padding:17px 0;font-size:17px;color:#fff;letter-spacing:.02em}
  .nav-drawer li a:active{color:var(--brand)}
  .nav-drawer .dr-tel{
    display:inline-flex;align-items:center;gap:9px;margin-top:28px;
    font-family:var(--mono);font-size:16px;color:var(--brand);
  }

  @media (max-width:900px){
    .nav-links{display:none}
    .nav-tel{display:none}
    .nav-burger{display:flex}
    .nav{height:66px}
    .nav-logo img{height:26px}
    .nav-drawer{padding-top:82px}
  }

  /* 页脚微信二维码：二维码必须白底才扫得出来，
     所以在深色页脚上单独给它一块白卡，不要跟着主题变暗。 */
  .ft-qr{display:flex;flex-direction:column;align-items:flex-start}
  .ft-qr img{
    width:124px;height:124px;display:block;
    background:#fff;padding:6px;border-radius:4px;margin-bottom:11px;
    box-shadow:0 6px 20px rgba(0,0,0,.42);
    transition:transform .35s var(--ease);
  }
  .ft-qr:hover img{transform:translateY(-3px)}
  .ft-qr span{font-size:12px;letter-spacing:.06em;color:var(--fg3)}
  @media (max-width:1100px){
    /* 窄屏时二维码单独占一行，别被压成一条 */
    .ft-qr{grid-column:1 / -1;flex-direction:row;align-items:center;gap:16px}
    .ft-qr img{margin-bottom:0}
  }

  /* ================= 移动端专项优化 =================
     桌面端的 dark cinema 在竖屏下有两个硬伤：
       ① 满屏 hero 图被裁得只剩局部，产品主体看不出来
       ② 图本身偏暗，再叠一层暗罩后手机上几乎全黑
     移动端策略：降低 hero 高度、提亮图片、减弱暗罩。 */
  @media (max-width:768px){
    .hero{height:auto;min-height:88vh;min-height:88svh}
    .hero-img{object-position:62% 42%;filter:brightness(1.35) contrast(1.02)}
    .veil{
      background:
        linear-gradient(to top,rgba(10,10,10,.96) 0%,rgba(10,10,10,.72) 34%,rgba(10,10,10,.22) 68%,rgba(10,10,10,.4) 100%),
        linear-gradient(to right,rgba(10,10,10,.4) 0%,transparent 62%),
        rgba(8,8,8,.1);
    }
    .copy{bottom:clamp(26px,5.6vh,50px)}
    .copy h1{font-size:clamp(31px,8.4vw,44px)}
    .sub{font-size:15px;line-height:1.85}
    .cta{gap:14px}
    .btn,.link{height:50px;flex:1 1 auto;justify-content:center;min-width:138px}
    .btn{padding:0 20px}
    .link{padding:0 18px}
    /* 服务栏目的描边大字，窄屏要缩到看得清 */
    .svc-t{font-size:clamp(25px,7.2vw,33px)}
    .svc-item{max-width:100%;padding:clamp(26px,4.4vh,40px) 0}
    /* 作品墙单列 */
    .works-grid{grid-template-columns:1fr}
    .works-grid li{aspect-ratio:4/3}
    /* 数据墙两列 */
    .stats ul{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
    .stats b{font-size:clamp(30px,9vw,44px)}
    /* 页脚单列 */
    .ft-grid{grid-template-columns:1fr;gap:26px}
    .ft-bot{flex-direction:column;gap:8px;align-items:flex-start}
  }

  /* 页脚全部分类行：一行铺开所有子栏目入口，兼顾站内链接密度与可读性 */
  .ft-cats{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;
    margin-top:clamp(22px,3vh,34px);padding-top:clamp(18px,2.4vh,26px);
    border-top:1px solid var(--line);
    font-size:12.5px;line-height:1.9;
  }
  .ft-cats span{color:var(--fg3);letter-spacing:.06em}
  .ft-cats a{color:var(--fg2);transition:color .3s var(--ease)}
  .ft-cats a:hover{color:var(--brand)}
  @media (max-width:768px){ .ft-cats{gap:6px 12px;font-size:12px} }