:root{
  --bg:#0b0e13;
  --bg-soft:#11161f;
  --bg-card:#141a24;
  --line:rgba(255,255,255,.07);
  --line-2:rgba(255,255,255,.13);
  --fg:#e9ecf2;
  --fg-2:#98a2b3;
  --fg-3:#5f6a7d;
  --cool:#a9c6e4;
  --warm:#e0a458;
  --max:1080px;
  --read:720px;
  --wipe:linear-gradient(90deg,#000 44%,rgba(0,0,0,.38) 49.5%,transparent 55%);
  --cur:linear-gradient(180deg,#000 44%,rgba(0,0,0,.38) 49.5%,transparent 55%);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
html.snap{scroll-snap-type:y mandatory;scroll-padding-top:0}
body{
  background:
    radial-gradient(120% 90% at 78% 6%,rgba(84,124,176,.17),transparent 55%),
    radial-gradient(90% 70% at 10% 96%,rgba(224,164,88,.09),transparent 62%),
    var(--bg);
  background-attachment:fixed;color:var(--fg);
  font:16px/1.75 -apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
[hidden]{display:none!important}
::selection{background:rgba(224,164,88,.28)}

#sky{position:fixed;inset:0;z-index:0;pointer-events:none}
main{position:relative;z-index:1}
.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}
.wrap.narrow{max-width:var(--read)}

/* ---------- 导航 ---------- */
header{position:fixed;top:0;left:0;right:0;z-index:20;border-bottom:1px solid transparent;transition:.35s}
header.stuck{background:rgba(11,14,19,.72);backdrop-filter:blur(14px);border-bottom-color:var(--line)}
header .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;max-width:1240px}
.brand{font-size:15px;letter-spacing:.5px;font-weight:600;white-space:nowrap}
.brand i{color:var(--warm);font-style:normal}
nav{display:flex;gap:30px;font-size:14px;color:var(--fg-2)}
nav a{position:relative;padding:6px 0;transition:.25s}
nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--warm);transition:right .3s}
nav a:hover{color:var(--fg)}
nav a:hover::after{right:0}
nav a[aria-current]{color:var(--fg)}
nav a[aria-current]::after{right:0}

/* ---------- 右侧节指示器 ---------- */
.dots{position:fixed;right:26px;top:50%;transform:translateY(-50%);z-index:15;display:none;gap:16px;
  grid-auto-flow:row;align-items:center}
html.snap .dots{display:grid}
.dots button{display:flex;align-items:center;gap:10px;background:none;border:0;cursor:pointer;padding:0;color:var(--fg-3)}
.dots i{font-style:normal;font-size:11.5px;letter-spacing:1px;opacity:0;transform:translateX(6px);transition:.35s;white-space:nowrap}
.dots b{display:block;width:20px;height:2px;background:rgba(255,255,255,.18);transition:.35s}
.dots button:hover i{opacity:1;transform:none}
.dots button:hover b{background:rgba(255,255,255,.4)}
.dots button.on b{width:34px;background:var(--warm);box-shadow:0 0 12px rgba(224,164,88,.6)}
.dots button.on i{opacity:1;transform:none;color:var(--fg-2)}

/* ---------- 整屏面板 ---------- */
.panel{min-height:100vh;scroll-snap-align:start;scroll-snap-stop:always;
  display:flex;align-items:center;position:relative;padding:96px 0 72px}
.panel .wrap{width:100%}
html.flat .panel{min-height:auto;padding:104px 0 96px;border-bottom:1px solid rgba(255,255,255,.05)}
@keyframes nudge{from{opacity:0;transform:translateY(12px)}64%{opacity:1;transform:translateY(-3px)}to{opacity:1;transform:none}}
html.motion .panel{opacity:.28;transform:translateY(26px);
  transition:opacity .58s ease,transform .72s cubic-bezier(.22,.72,.28,1)}
html.motion .panel.hit{opacity:1;transform:none}
html.motion .panel.hit .nudge{animation:nudge .86s cubic-bezier(.2,.8,.3,1.15) both}
html.motion .panel.hit .nudge:nth-child(2){animation-delay:.1s}
html.motion .panel.hit .nudge:nth-child(3){animation-delay:.2s}
html.motion .panel.hit .nudge:nth-child(4){animation-delay:.3s}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh}
h1{font-size:clamp(38px,7.2vw,72px);line-height:1.18;letter-spacing:-1px;font-weight:700}
html.motion h1 span{opacity:0;display:inline-block;animation:up .7s cubic-bezier(.2,.7,.3,1) forwards}
@keyframes up{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
#verse{display:block;width:100%;max-width:1024px;margin-top:30px;height:clamp(62px,10vw,104px)}
#verse text{fill:var(--fg)}
.meta{margin-top:26px;font-size:13.5px;color:var(--fg-3)}
.meta b{color:var(--cool);font-weight:500}
.meta em{color:var(--warm);font-style:normal}
.cta{margin-top:40px;display:flex;flex-wrap:wrap;gap:14px}
html.motion .meta,html.motion .cta{opacity:0;animation:up .7s forwards}
html.motion .meta{animation-delay:.9s}
html.motion .cta{animation-delay:1.05s}
.down{position:absolute;left:50%;bottom:30px;transform:translateX(-50%);color:var(--fg-3);font-size:12px;letter-spacing:2px}
.down::after{content:"";display:block;width:1px;height:30px;margin:9px auto 0;background:linear-gradient(var(--fg-3),transparent)}

/* ---------- 标题层级 ---------- */
.label{font-size:12.5px;letter-spacing:3px;color:var(--fg-3);margin-bottom:14px}
h2{font-size:clamp(26px,3.8vw,40px);font-weight:600;letter-spacing:-.6px;line-height:1.2}
.hook{margin-top:14px;font-size:clamp(15.5px,1.9vw,19px);color:var(--fg-2);max-width:560px;line-height:1.6}
h3{font-size:19px;font-weight:600}
.lead{margin-top:14px;color:var(--fg-2);max-width:600px;font-size:15.5px}
.prose{margin-top:20px;max-width:780px}
.prose p{margin:0 0 15px;font-size:15.5px;line-height:1.9;color:var(--fg-2)}
.prose p:last-child{margin-bottom:0}
.prose b,.prose strong{color:var(--fg);font-weight:600}

/* ---------- 首页预告面板 ---------- */
.teaser{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.teaser.rev .pic{order:2}
.pic{position:relative;border:1px solid var(--line);border-radius:4px;overflow:hidden;
  background:var(--bg-soft);box-shadow:0 30px 80px rgba(0,0,0,.55);transition:transform .6s cubic-bezier(.2,.7,.3,1)}
.pic img{width:100%;aspect-ratio:16/9;object-fit:cover;object-position:center;opacity:.9;transition:.6s}
.pic::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(160deg,rgba(169,198,228,.09),transparent 45%,rgba(224,164,88,.07))}
a.teaser-link:hover .pic{transform:translateY(-6px)}
a.teaser-link:hover .pic img{opacity:1;transform:scale(1.015)}
.pic .badge{position:absolute;left:14px;top:14px;z-index:2;font-size:11.5px;letter-spacing:1px;
  padding:4px 11px;border-radius:99px;background:rgba(11,14,19,.78);backdrop-filter:blur(8px)}
.pic .badge.on{color:var(--cool);border:1px solid rgba(169,198,228,.3)}
.detail{display:inline-flex;align-items:center;gap:9px;margin-top:34px;font-size:15px;color:var(--warm)}
.detail em{font-style:normal;display:inline-block;transition:transform .35s}
.detail::before{content:"";display:block;width:0;height:1px;background:currentColor;transition:width .35s}
.detail:hover::before{width:22px}
.detail:hover em{transform:translateX(5px)}
.kv{margin-top:30px;display:flex;flex-wrap:wrap;gap:10px 26px;font-size:13px;color:var(--fg-3)}
.kv span b{color:var(--cool);font-weight:500}

/* ---------- 内页：与首页明显不同的一层 ---------- */
body.inner main{
  max-width:1280px;margin:0 auto;
  background:rgba(9,12,17,.9);
  border-left:1px solid var(--line);border-right:1px solid var(--line);
  box-shadow:0 0 120px rgba(0,0,0,.7);
  backdrop-filter:blur(3px);
}
body.inner header{background:rgba(11,14,19,.9);backdrop-filter:blur(16px);border-bottom-color:var(--line)}
body.inner header .wrap{max-width:1280px}
.page-top{padding:150px 0 8px;position:relative}
.page-top::before{content:"";position:absolute;left:28px;right:28px;top:104px;height:1px;
  background:linear-gradient(90deg,var(--warm),transparent 40%);opacity:.5}
.crumb{font-size:12.5px;color:var(--fg-3);letter-spacing:1px}
.crumb a:hover{color:var(--fg-2)}
.page-top h1{font-size:clamp(30px,4.6vw,50px);margin-top:14px;line-height:1.24}
.page-top .hook{margin-top:16px}
.rule{margin:42px 0 0;border-top:1px solid var(--line)}
section{padding:64px 0}
section.tight{padding:36px 0 0}
.back{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--fg-3);margin-bottom:26px}
.back:hover{color:var(--warm)}

/* ---------- 作品卡 ---------- */
.cards{margin-top:36px;display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:20px}
.card{position:relative;background:var(--bg-soft);border:1px solid var(--line);border-radius:3px;
  overflow:hidden;transition:transform .4s cubic-bezier(.2,.7,.3,1),border-color .4s,box-shadow .4s}
.card.live:hover{transform:translateY(-5px);border-color:rgba(169,198,228,.3);box-shadow:0 18px 48px rgba(0,0,0,.45)}
.card .shot{aspect-ratio:16/10;overflow:hidden;background:var(--bg-card);border-bottom:1px solid var(--line)}
.card .shot img{width:100%;height:100%;object-fit:cover;object-position:top left;
  transform:scale(1.02);transition:transform .7s cubic-bezier(.2,.7,.3,1);opacity:.86}
.card.live:hover .shot img{transform:scale(1.07);opacity:1}
.card .body{padding:24px}
.chip{display:inline-block;font-size:11.5px;padding:3px 10px;border-radius:99px;letter-spacing:.5px}
.chip.on{color:var(--cool);background:rgba(169,198,228,.1)}
.chip.mid{color:var(--warm);background:rgba(224,164,88,.1)}
.chip.off{color:var(--fg-3);background:rgba(255,255,255,.04)}
.card h3{margin-top:14px}
.card p{margin-top:9px;font-size:14.5px;color:var(--fg-2)}
.tags{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px}
.tags span{font-size:12px;color:var(--fg-3);border:1px solid var(--line);padding:2px 9px;border-radius:2px}
.card .go{margin-top:18px;font-size:13.5px;color:var(--cool);opacity:.75}
.card.wip{opacity:.6}
.card.wip .go{color:var(--fg-3)}

.btn{display:inline-block;padding:12px 26px;border-radius:2px;font-size:14px;
  border:1px solid rgba(224,164,88,.45);color:var(--warm);transition:.3s}
.btn:hover{background:rgba(224,164,88,.1);box-shadow:0 0 24px rgba(224,164,88,.18)}
.btn.ghost{border-color:var(--line-2);color:var(--fg-2)}
.btn.ghost:hover{background:rgba(255,255,255,.04);box-shadow:none;color:var(--fg)}

/* ---------- 数字条 ---------- */
.nums{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:3px;overflow:hidden}
.nums div{background:var(--bg-soft);padding:22px}
.nums b{display:block;font-size:28px;font-weight:600;color:var(--cool);letter-spacing:-1px}
.nums i{font-style:normal;font-size:12.5px;color:var(--fg-3);margin-top:4px;display:block}

/* ---------- 详情页区块 ---------- */
.blk + .blk{margin-top:56px}
.blk h4{font-size:21px;font-weight:600;letter-spacing:-.3px}
.blk .hook{margin-top:9px;font-size:15px;color:var(--fg-3)}
.blk .hook::before{content:"";display:block;width:26px;height:1px;background:var(--warm);margin-bottom:12px;opacity:.7}
.blk p{margin-top:15px;color:var(--fg-2);font-size:16px}
.blk > p:first-of-type{color:var(--fg)}

.agents{margin-top:22px;display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:3px;overflow:hidden}
.agents > div{background:var(--bg-soft);padding:20px 22px;display:grid;grid-template-columns:130px 1fr;gap:20px;align-items:start}
.agents b{font-size:15px;font-weight:600}
.agents b em{display:block;font-style:normal;font-size:12px;color:var(--fg-3);margin-top:3px;letter-spacing:1px}
.agents p{margin:0;font-size:14.5px;color:var(--fg-2)}

.steps{margin-top:22px;border-left:1px solid var(--line);padding-left:28px}
.steps li{list-style:none;position:relative;padding-bottom:22px}
.steps li::before{content:"";position:absolute;left:-33px;top:7px;width:9px;height:9px;border-radius:50%;
  background:var(--bg);border:1px solid var(--warm);box-shadow:0 0 12px rgba(224,164,88,.35)}
.steps b{font-size:15.5px;font-weight:600}
.steps p{margin-top:5px;font-size:14.5px;color:var(--fg-2)}
.routes{margin-top:22px;border:1px solid var(--line);border-radius:3px;overflow:hidden}
.routes div{display:grid;grid-template-columns:1fr 1.1fr;gap:16px;padding:13px 20px;font-size:14px;border-top:1px solid var(--line)}
.routes div:first-child{border-top:0}
.routes span{color:var(--fg-3)}
.routes code{font:13px/1.6 ui-monospace,Consolas,monospace;color:var(--cool)}

.shotlist{margin-top:26px;display:grid;gap:30px}
.shotlist figure{border:1px solid var(--line);border-radius:3px;overflow:hidden;background:var(--bg-soft)}
.shotlist img{width:100%}
.shotlist figcaption{padding:13px 20px;font-size:13.5px;color:var(--fg-3);border-top:1px solid var(--line)}

.stack{margin-top:22px;display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:3px;overflow:hidden}
.stack > div{background:var(--bg-soft);padding:18px 22px;display:grid;grid-template-columns:100px 180px 1fr;gap:18px;align-items:baseline}
.stack .k{font-size:13px;color:var(--fg-3);letter-spacing:1px}
.stack .v{font-size:15px;color:var(--fg)}
.stack .w{font-size:14px;color:var(--fg-2)}

.pits{margin-top:22px;display:grid;gap:16px}
.pits div{border-left:2px solid rgba(224,164,88,.5);padding:2px 0 2px 18px}
.pits b{font-size:15.5px;font-weight:600}
.pits p{margin-top:6px;font-size:14.5px;color:var(--fg-2)}

.pager{margin-top:56px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:14px}
.pager a{color:var(--fg-2)}
.pager a:hover{color:var(--warm)}
.pager span{color:var(--fg-3)}

/* ---------- 心得 ---------- */
.list{border-top:1px solid var(--line)}
.list a{display:grid;grid-template-columns:110px 1fr auto;gap:26px;align-items:baseline;
  padding:24px 4px;border-bottom:1px solid var(--line);transition:.3s}
.list a:hover{background:rgba(255,255,255,.02);padding-left:14px}
.list time{font-size:12.5px;color:var(--fg-3);letter-spacing:1px}
.list h3{font-size:18px;font-weight:600}
.list .d{margin-top:7px;font-size:14px;color:var(--fg-2);max-width:640px}
.list i{font-style:normal;font-size:12.5px;color:var(--fg-3);white-space:nowrap}
.article p{margin-top:16px;color:var(--fg-2);font-size:16.5px;line-height:1.85}
.article > div + div{margin-top:44px}
.article h4{font-size:19px;font-weight:600}
.article pre{margin-top:18px;padding:18px 20px;border:1px solid var(--line);border-radius:3px;
  background:#0d1119;overflow-x:auto;font:13px/1.75 ui-monospace,Consolas,monospace;color:#c8d4e4}
.article pre .c{color:#5f6a7d}
.article pre .s{color:var(--warm)}

/* ---------- 影像集 ---------- */
.frame{position:relative;display:block;max-width:240px;aspect-ratio:4/5;border:1px solid var(--line);
  border-radius:3px;overflow:hidden;transition:transform .5s cubic-bezier(.2,.7,.3,1),border-color .4s;
  background:radial-gradient(120% 120% at 30% 18%,rgba(169,198,228,.14),transparent 62%),var(--bg-soft)}
.frame:hover{transform:translateY(-4px);border-color:var(--line-2)}
.frame img{width:100%;height:100%;object-fit:cover;opacity:.8;transition:.5s}
.frame:hover img{opacity:1}
.frame span{position:absolute;left:0;right:0;bottom:0;padding:13px 15px;font-size:12.5px;letter-spacing:1px;
  color:var(--fg-2);background:linear-gradient(transparent,rgba(11,14,19,.92))}
.wall{margin-top:26px;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;-webkit-user-select:none;user-select:none}
.wall figure{border:1px solid var(--line);border-radius:3px;overflow:hidden;background:var(--bg-soft);cursor:zoom-in}
.wall img{width:100%;aspect-ratio:4/3;object-fit:cover;opacity:.9;transition:.5s;pointer-events:none;-webkit-user-drag:none}
.wall figure:hover img{opacity:1;transform:scale(1.02)}
.wall figcaption{padding:11px 14px;font-size:13px;color:var(--fg-3)}

/* 只读大图：图用背景画上去，浏览器右键里就不会出现「图片另存为」 */
.viewer{position:fixed;inset:0;z-index:60;display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:rgba(6,8,12,.95);backdrop-filter:blur(8px);-webkit-user-select:none;user-select:none;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s}
.viewer.on{opacity:1;visibility:visible}
.viewer .stage{width:min(92vw,1340px);height:76vh;background-repeat:no-repeat;background-position:center;
  background-size:contain;border:1px solid var(--line);box-shadow:0 26px 70px rgba(0,0,0,.62)}
.viewer .cap{margin-top:17px;padding:0 26px;font-size:13.5px;line-height:1.7;color:var(--fg-2);text-align:center;max-width:760px}
.viewer .n{position:absolute;left:26px;top:24px;font-size:12.5px;letter-spacing:1.5px;color:var(--fg-3)}
.viewer .mark{position:absolute;right:26px;bottom:20px;font-size:11.5px;letter-spacing:2px;color:rgba(255,255,255,.28)}
.viewer .x,.viewer .pv,.viewer .nx{position:absolute;border:1px solid var(--line-2);background:rgba(255,255,255,.04);
  color:var(--fg-2);cursor:pointer;font-family:inherit;transition:.25s}
.viewer .x{top:18px;right:22px;padding:8px 16px;border-radius:2px;font-size:12.5px;letter-spacing:1px}
.viewer .pv,.viewer .nx{top:50%;margin-top:-22px;width:44px;height:44px;border-radius:50%;font-size:20px;line-height:1}
.viewer .pv{left:18px}.viewer .nx{right:18px}
.viewer .x:hover,.viewer .pv:hover,.viewer .nx:hover{color:var(--fg);border-color:rgba(224,164,88,.5);background:rgba(224,164,88,.1)}
@media (max-width:680px){.viewer .stage{height:60vh;width:94vw}.viewer .pv,.viewer .nx{display:none}.viewer .mark{display:none}}
.empty{margin-top:26px;padding:44px 26px;border:1px dashed var(--line-2);border-radius:3px;text-align:center;
  background:rgba(255,255,255,.015);color:var(--fg-3);font-size:14.5px;line-height:1.9}
.empty b{display:block;margin-bottom:9px;font-size:15.5px;font-weight:600;color:var(--fg-2)}
.empty code{font:13px ui-monospace,Consolas,monospace;color:var(--cool)}

/* ---------- 关于 ---------- */
.split{display:grid;grid-template-columns:200px 1fr;gap:48px;align-items:start}
.split p{color:var(--fg-2);font-size:15.5px}
.split p + p{margin-top:15px}
.split p a,.prose a{color:var(--cool);border-bottom:1px solid rgba(169,198,228,.35);padding-bottom:1px}
.split p a:hover,.prose a:hover{color:var(--warm);border-color:rgba(224,164,88,.5)}
.grid2{margin-top:26px;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:3px;overflow:hidden}
.grid2 > div{background:var(--bg-soft);padding:20px 22px}
.grid2 b{font-size:15px;font-weight:600}
.grid2 p{margin-top:7px;font-size:14px;color:var(--fg-2)}
.line{margin-top:26px;border-left:1px solid var(--line);padding-left:30px}
.turns{margin-top:16px;display:grid;gap:14px}
.turns > div{padding-left:15px;border-left:1px solid var(--line-2)}
.turns dt{font-size:12px;letter-spacing:2px;color:var(--fg-3)}
.turns dd{margin:4px 0 0;font-size:14.5px;line-height:1.85;color:var(--fg-2)}
.node{position:relative;padding-bottom:32px}
.node::before{content:"";position:absolute;left:-35px;top:7px;width:9px;height:9px;border-radius:50%;
  background:var(--bg);border:1px solid var(--warm);box-shadow:0 0 12px rgba(224,164,88,.35)}
.node time{font-size:12.5px;color:var(--fg-3);letter-spacing:1px}
.node h4{margin-top:5px;font-size:16.5px;font-weight:600}
.node p{margin-top:6px;font-size:14.5px;color:var(--fg-2)}

/* ---------- 联系 ---------- */
.contact{border:1px solid var(--line);border-radius:3px;padding:44px 40px;
  background:linear-gradient(180deg,rgba(224,164,88,.05),transparent)}
.ways{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.copy{font:14px/1 ui-monospace,Consolas,monospace;color:var(--fg);border:1px solid var(--line);
  padding:11px 16px;border-radius:2px;cursor:pointer;transition:.3s;background:none}
.copy:hover{border-color:rgba(224,164,88,.4);color:var(--warm)}
.done{font-size:13px;color:var(--warm);opacity:0;transition:.3s}
.done.on{opacity:1}

/* ---------- 页脚 ---------- */
html.snap main > .panel:last-of-type{min-height:calc(100vh - var(--ft,140px))}
footer{position:relative;z-index:2;margin-top:40px;border-top:1px solid var(--line);
  padding:34px 0 40px;font-size:13px;color:var(--fg-3)}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;align-items:center}
footer a{color:var(--fg-3)}
footer a:hover{color:var(--warm)}
footer b{color:var(--fg-2);font-weight:500}

/* ---------- 入场揭示 ---------- */
html.motion .rise{opacity:0;transform:translateY(26px);
  transition:opacity .9s ease,transform .9s cubic-bezier(.2,.7,.3,1)}
html.motion .rise.in{opacity:1;transform:none}
html.motion .rise.d2{transition-delay:.09s}
html.motion .rise.d3{transition-delay:.18s}
html.motion .fade{opacity:0;animation:up .7s cubic-bezier(.2,.7,.3,1) forwards}

/* ---------- 遮罩擦出 ---------- */
/* mask 图比元素宽 220%，靠 mask-position 把柔边透明段从左推到右，
   擦出的前沿因此带一条渐隐的软边，不是硬切 */
html.motion .wipe{
  -webkit-mask:var(--wipe) 100% 0/220% 100% no-repeat;
          mask:var(--wipe) 100% 0/220% 100% no-repeat;
  transition:-webkit-mask-position .95s cubic-bezier(.34,.72,.24,1),
             mask-position .95s cubic-bezier(.34,.72,.24,1)}
html.motion .wipe.in{-webkit-mask-position:0% 0;mask-position:0% 0}

/* ---------- 画面揭幕 ---------- */
/* 同一套 mask 换个方向：画面从上往下擦出来，图本身从略放大的位置回正 */
html.motion .curtain{
  -webkit-mask:var(--cur) 0 100%/100% 240% no-repeat;
          mask:var(--cur) 0 100%/100% 240% no-repeat;
  transition:-webkit-mask-position 1.15s cubic-bezier(.34,.72,.24,1),
             mask-position 1.15s cubic-bezier(.34,.72,.24,1),
             transform .6s cubic-bezier(.2,.7,.3,1)}
html.motion .curtain.in{-webkit-mask-position:0 0;mask-position:0 0}
html.motion .curtain img{transform:scale(1.05);
  transition:transform 1.6s cubic-bezier(.2,.7,.3,1)}
html.motion .curtain.in img{transform:none}

/* ---------- 首页文字逐行错开 ---------- */
html.motion .panel.hit .nudge.stg{animation:none}
html.motion .panel.hit .nudge.stg>*{opacity:0;animation:nudge .82s cubic-bezier(.2,.8,.3,1.15) both}
html.motion .panel.hit .nudge.stg>*:nth-child(1){animation-delay:.14s}
html.motion .panel.hit .nudge.stg>*:nth-child(2){animation-delay:.24s}
html.motion .panel.hit .nudge.stg>*:nth-child(3){animation-delay:.34s}
html.motion .panel.hit .nudge.stg>*:nth-child(4){animation-delay:.44s}
html.motion .panel.hit .nudge.stg>*:nth-child(5){animation-delay:.54s}
html.motion .panel.hit .nudge.stg>*:nth-child(6){animation-delay:.64s}

/* ---------- 影像集：一张张挂上墙 ---------- */
html.motion .wall .rise{transform:translateY(34px) scale(.965) rotate(var(--r,0deg));
  transition-delay:var(--d,0s)}
html.motion .wall .rise.in{transform:none}

/* ---------- 影像集：点开是从原图长出来的 ---------- */
.viewer .cap,.viewer .n,.viewer .mark{transition:opacity .3s}
.viewer.opening .cap,.viewer.opening .n,.viewer.opening .mark{opacity:0}
@keyframes swap{from{opacity:.3;transform:scale(1.014)}to{opacity:1;transform:none}}
.viewer .stage.swap{animation:swap .4s cubic-bezier(.2,.7,.3,1) both}

/* ---------- 作品卡错峰出场 ---------- */
html.motion .cards .rise:nth-child(2){transition-delay:.08s}
html.motion .cards .rise:nth-child(3){transition-delay:.16s}
html.motion .cards .rise:nth-child(4){transition-delay:.24s}
html.motion .cards .rise:nth-child(5){transition-delay:.32s}
html.motion .cards .rise:nth-child(6){transition-delay:.4s}
html.motion .cards .rise:nth-child(n+7){transition-delay:.46s}
html.motion .cards .rise.in{transition:opacity .7s ease,transform .45s cubic-bezier(.2,.7,.3,1),
  border-color .4s,box-shadow .4s}
html.motion .card .shot.curtain.in img{transition:transform .7s cubic-bezier(.2,.7,.3,1),opacity .6s}

/* ---------- 代码块逐行亮起 ---------- */
html.motion .article pre .ln{display:block;opacity:0;transform:translateY(4px);
  transition:opacity .45s ease,transform .45s ease;transition-delay:calc(var(--i,0) * .06s)}
html.motion .article pre.lines.in .ln{opacity:1;transform:none}

/* ---------- 复制的暖色涟漪 ---------- */
.copy{position:relative;overflow:hidden}
html.motion .copy .rip{position:absolute;left:50%;top:50%;width:14px;height:14px;margin:-7px 0 0 -7px;
  border-radius:50%;pointer-events:none;
  background:radial-gradient(closest-side,rgba(224,164,88,.42),rgba(224,164,88,0));
  animation:rip .72s cubic-bezier(.2,.7,.3,1) forwards}
@keyframes rip{to{transform:scale(24);opacity:0}}

/* ---------- 时间线随滚动描出来 ---------- */
html.motion .steps,html.motion .line{position:relative}
html.motion .steps::before,html.motion .line::before{content:"";position:absolute;top:0;width:1px;
  height:calc(var(--k,0) * 100%);pointer-events:none;
  background:linear-gradient(rgba(224,164,88,.8),rgba(224,164,88,.1))}
html.motion .steps::before{left:-29px}
html.motion .line::before{left:-31px}

/* ---------- 顶部滚动进度 ---------- */
#prog{position:absolute;left:0;right:0;bottom:-1px;height:1px;pointer-events:none;
  transform:scaleX(var(--p,0));transform-origin:0 50%;opacity:0;transition:opacity .4s;
  background:linear-gradient(90deg,rgba(224,164,88,.1),var(--warm) 65%,#f4c88e);
  box-shadow:0 0 12px rgba(224,164,88,.5)}
header.stuck #prog{opacity:.9}

/* ---------- 光标淡光斑 ---------- */
#glow{position:fixed;left:0;top:0;width:440px;height:440px;margin:-220px 0 0 -220px;z-index:3;
  pointer-events:none;opacity:0;transition:opacity .7s;mix-blend-mode:screen;
  background:radial-gradient(closest-side,rgba(160,198,246,.085),rgba(224,164,88,.045) 46%,transparent 74%)}
#glow.on{opacity:1}
@media (max-width:900px){#glow{display:none}}

/* ---------- 换页过渡（不支持的浏览器整段忽略） ---------- */
@view-transition{navigation:auto:all}
::view-transition-old(root){animation:vtOut .3s ease both}
::view-transition-new(root){animation:vtIn .55s cubic-bezier(.2,.7,.3,1) both}
@keyframes vtOut{to{opacity:.12;transform:scale(1.03)}}
@keyframes vtIn{from{clip-path:inset(0 0 100% 0)}}

/* ---------- 窄屏 ---------- */
@media (max-width:900px){
  .teaser{grid-template-columns:1fr;gap:34px}
  .teaser.rev .pic{order:0}
}
@media (max-width:720px){
  .wrap{padding:0 20px}
  nav{display:none}
  section{padding:44px 0}
  .panel{padding:80px 0 56px}
  .page-top{padding:126px 0 8px}
  .page-top::before{left:20px;right:20px;top:92px}
  .dots{display:none!important}
  .split,.grid2{grid-template-columns:1fr}
  .agents > div,.stack > div,.routes div,.list a{grid-template-columns:1fr;gap:8px}
  .contact{padding:30px 22px}
  footer .wrap{flex-direction:column;align-items:flex-start}
}

/* ---------- 降低动态 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  html.snap{scroll-snap-type:none}
  @view-transition{navigation:none}
  *,*::before,*::after{animation:none!important;transition:none!important}
  html.motion .rise{opacity:1;transform:none}
  html.motion .fade,html.motion h1 span,html.motion .meta,html.motion .cta{opacity:1}
  #glow,#prog{display:none}
}