/* ==========================================================================
   矿主的AI助手 · 门面页主题（首页 / 关于本站 共用）
   配色：04 青灰护眼  --bg #131A18
   纯 CSS，无外部依赖（不引 CDN、不引字体），离线可用
   ========================================================================== */
:root{
  --bg:#131A18; --bg-2:#0F1614; --panel:#1B2425; --panel-2:#212C2E;
  --line:rgba(246,252,249,.09); --line-2:rgba(246,252,249,.17);
  --ink:#E9F1EE; --ink-2:#B6C6CA; --muted:#87999F; --dim:#82959B;
  --yl:#FFC400; --yl-2:#FFD24D; --yl-d:#E0A800; --cy:#3FD0C9; --ok:#35C46A;
  --mono:"Consolas","SFMono-Regular","JetBrains Mono","Roboto Mono","Courier New",monospace;
  --sh:0 18px 40px -26px rgba(0,0,0,.8);
  --sh-hi:0 24px 50px -26px rgba(0,0,0,.9);

  color-scheme:dark;   /* 表单控件 / 滚动条跟随深色 */
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
[id]{scroll-margin-top:80px}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--ink);line-height:1.7;font-size:16px;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}

/* ---------- 蓝图网格 + 顶部光晕 ---------- */
body::before{content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(246,252,249,.032) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(246,252,249,.032) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:radial-gradient(ellipse 130% 85% at 50% 0%,#000 28%,rgba(0,0,0,.22) 72%,transparent 100%);
  mask-image:radial-gradient(ellipse 130% 85% at 50% 0%,#000 28%,rgba(0,0,0,.22) 72%,transparent 100%)}
body::after{content:"";position:fixed;left:50%;top:-340px;width:1400px;height:820px;margin-left:-700px;
  z-index:0;pointer-events:none;
  background:radial-gradient(ellipse at 50% 50%,rgba(255,196,0,.10),rgba(255,196,0,0) 68%)}
header,main,footer{position:relative;z-index:1}
.wrap{max-width:1180px;margin:0 auto;padding:0 32px}
a:focus-visible,label:focus-visible,button:focus-visible{outline:2px solid var(--yl);outline-offset:3px;border-radius:4px}

/* ---------- 状态条 ---------- */
.strip{background:var(--bg-2);border-bottom:1px solid var(--line)}
.strip-in{max-width:1180px;margin:0 auto;padding:0 32px;height:38px;display:flex;
  align-items:center;justify-content:space-between;gap:16px}
.strip span{display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
  font-family:var(--mono);font-size:11.5px;color:var(--muted);letter-spacing:.8px}
.strip .v{color:var(--yl);letter-spacing:1.2px}
.sdot{width:7px;height:7px;border-radius:50%;background:var(--ok);flex:0 0 7px;
  animation:pulse 2.4s ease-out infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(53,196,106,.6)}
  70%{box-shadow:0 0 0 9px rgba(53,196,106,0)}
  100%{box-shadow:0 0 0 0 rgba(53,196,106,0)}}

/* ---------- 顶栏 ---------- */
.top{background:rgba(19,26,24,.94);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
.top::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:linear-gradient(90deg,var(--yl) 0 110px,rgba(255,196,0,.22) 110px 250px,transparent 250px)}
.top-in{max-width:1180px;margin:0 auto;padding:0 32px;height:74px;display:flex;
  align-items:center;justify-content:space-between;gap:24px;position:relative}
.brand{display:flex;align-items:center;gap:13px;text-decoration:none;color:inherit;flex:0 0 auto}
.mark{width:44px;height:44px;border-radius:10px;display:grid;place-items:center;flex:0 0 44px;
  background:linear-gradient(160deg,var(--yl-2),var(--yl-d));
  box-shadow:0 8px 20px -11px rgba(255,196,0,.7)}
.brand b{display:block;font-size:18px;font-weight:700;letter-spacing:1.2px;line-height:1.2;color:#E9F1EE}
.brand span span{display:block;font-size:11px;color:var(--dim);letter-spacing:1.6px;margin-top:4px;
  font-family:var(--mono)}
.nav{display:flex;align-items:center;gap:2px}
.nav a{position:relative;font-size:14.5px;color:var(--ink-2);text-decoration:none;letter-spacing:1.4px;
  padding:11px 15px;border-radius:6px;transition:color .2s,background .2s}
.nav a::after{content:"";position:absolute;left:15px;right:15px;bottom:5px;height:2px;border-radius:1px;
  background:var(--yl);transform:scaleX(0);transform-origin:left;transition:transform .24s}
.nav a:hover{color:var(--yl);background:rgba(255,196,0,.07)}
.nav a:hover::after{transform:scaleX(1)}
.nav a.on{color:var(--yl);font-weight:600}
.nav a.on::after{transform:scaleX(1)}
.nt{display:none}
.burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;
  border-radius:8px;border:1px solid var(--line);background:var(--panel);cursor:pointer;padding:0 11px}
.burger i{display:block;height:2px;border-radius:1px;background:var(--yl);transition:transform .25s,opacity .25s}
.nt:checked ~ .burger i:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nt:checked ~ .burger i:nth-child(2){opacity:0}
.nt:checked ~ .burger i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{padding:46px 0 0}
.hero-in{display:grid;grid-template-columns:1.04fr .96fr;gap:44px;align-items:center;
  background:linear-gradient(155deg,#1D2728 0%,#182121 55%,#151D1E 100%);
  border:1px solid var(--line);border-radius:14px;padding:46px 44px;box-shadow:var(--sh);
  position:relative;overflow:hidden}
.hero-in::before,.hero-in::after{content:"";position:absolute;width:26px;height:26px;
  border:2px solid rgba(255,196,0,.5);pointer-events:none}
.hero-in::before{left:13px;top:13px;border-right:0;border-bottom:0;border-radius:5px 0 0 0}
.hero-in::after{right:13px;bottom:13px;border-left:0;border-top:0;border-radius:0 0 5px 0}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:11.5px;color:var(--yl);
  letter-spacing:2.4px;background:rgba(255,196,0,.09);border:1px solid rgba(255,196,0,.34);
  border-radius:4px;padding:7px 15px;margin:0 0 22px;font-family:var(--mono)}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--yl);
  box-shadow:0 0 9px var(--yl)}
.hero h1{font-size:40px;font-weight:700;letter-spacing:2px;line-height:1.34;margin:0 0 16px;color:#E9F1EE}
.hero h1 em{font-style:normal;color:var(--yl)}
.hero .lead{font-size:18.5px;color:var(--ink-2);margin:0 0 12px;letter-spacing:.4px}
.hero .desc{font-size:14.5px;color:var(--muted);margin:0;line-height:1.95;max-width:520px}
.btns{display:flex;gap:13px;flex-wrap:wrap;margin-top:26px}
.btn{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;letter-spacing:1.2px;
  text-decoration:none;border-radius:8px;padding:13px 26px;
  transition:background .2s,transform .2s,box-shadow .2s,border-color .2s}
.btn i{font-style:normal;transition:transform .22s}
.btn-p{color:#14181C;background:linear-gradient(160deg,var(--yl-2),var(--yl));border:1px solid var(--yl-2);
  box-shadow:0 12px 26px -14px rgba(255,196,0,.65)}
.btn-p:hover{background:linear-gradient(160deg,#FFDE78,#FFCE1F);transform:translateY(-2px)}
.btn-g{color:var(--yl);background:rgba(255,196,0,.06);border:1px solid rgba(255,196,0,.36)}
.btn-g:hover{background:rgba(255,196,0,.13);border-color:rgba(255,196,0,.6);transform:translateY(-2px)}
.btn-p:hover i{transform:translateX(3px)}

/* ---------- 仪表条 ---------- */
.dash{list-style:none;margin:20px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--sh)}
.dash li{padding:22px 26px;border-right:1px solid var(--line);position:relative}
.dash li:last-child{border-right:0}
.dash li::after{content:"";position:absolute;left:0;top:0;width:100%;height:2px;
  background:linear-gradient(90deg,rgba(255,196,0,.75),rgba(255,196,0,.06))}
.dash .k{display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:10.5px;
  color:var(--dim);letter-spacing:1.6px;margin-bottom:9px}
.dash .k i{font-style:normal;color:rgba(255,196,0,.7)}
.dash b{display:block;font-size:22px;font-weight:700;color:var(--yl);letter-spacing:1.4px;line-height:1.3}
.dash span{display:block;font-size:13px;color:var(--muted);margin-top:5px}

/* ---------- 区块 ---------- */
.sec{padding:54px 0 0}
.sec-h{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:0 0 22px;
  padding-bottom:14px;border-bottom:1px solid var(--line)}
.sec-h h1,.sec-h h2{font-size:23px;font-weight:700;letter-spacing:2.4px;margin:0;display:flex;align-items:center;
  gap:14px;color:#E9F1EE}
.sec-h h1::before,.sec-h h2::before{content:"";width:4px;height:24px;border-radius:2px;background:var(--yl);
  box-shadow:0 0 14px rgba(255,196,0,.6)}
.sec-h em{font-style:normal;font-size:11.5px;color:var(--dim);letter-spacing:1.4px;font-family:var(--mono)}

/* ---------- 软件卡 ---------- */
.apps{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.app{position:relative;background:linear-gradient(170deg,#1D2728,#182121);border:1px solid var(--line);
  border-radius:12px;padding:34px 32px 28px;display:flex;flex-direction:column;box-shadow:var(--sh);
  transition:transform .26s,box-shadow .26s,border-color .26s}
.app::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;border-radius:12px 12px 0 0;
  background:linear-gradient(90deg,var(--yl),rgba(255,196,0,.28) 58%,transparent)}
.app:hover{transform:translateY(-4px);border-color:rgba(255,196,0,.42);box-shadow:var(--sh-hi)}
.app-top{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:22px}
.app-ic{width:66px;height:66px;border-radius:12px;display:grid;place-items:center;flex:0 0 66px;
  background:linear-gradient(160deg,#2B3638,#1D2728);border:1px solid rgba(255,196,0,.34)}
.tag{display:inline-flex;align-items:center;gap:8px;font-size:11px;color:var(--ok);
  background:rgba(53,196,106,.1);border:1px solid rgba(53,196,106,.34);border-radius:4px;
  padding:6px 13px;white-space:nowrap;letter-spacing:1.2px;font-family:var(--mono)}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ok);
  box-shadow:0 0 8px var(--ok)}
.app h3{font-size:24px;font-weight:700;letter-spacing:1.6px;margin:0 0 13px;color:#E9F1EE}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.tags i{font-style:normal;font-size:12.5px;color:var(--ink-2);background:rgba(246,252,249,.045);
  border:1px solid var(--line);border-radius:4px;padding:5px 12px;white-space:nowrap;
  font-family:var(--mono);letter-spacing:.3px}
.app p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.85}
.app-foot{margin-top:auto;padding-top:24px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.mini{font-size:12.5px;color:var(--muted);text-decoration:none;border-bottom:1px dashed var(--line-2);
  padding-bottom:2px;font-family:var(--mono);letter-spacing:.4px}
.mini:hover{color:var(--yl)}
/* 预留位 */
.app.soon{background:linear-gradient(170deg,#182121,#151E1E);border:1px dashed rgba(255,196,0,.26);
  box-shadow:none;align-items:center;justify-content:center;text-align:center}
.app.soon::before{background:linear-gradient(90deg,rgba(255,196,0,.3),transparent)}
.app.soon:hover{background:#1B2526;border-color:rgba(255,196,0,.5);box-shadow:var(--sh)}
.idx{position:absolute;top:22px;right:26px;font-family:var(--mono);font-size:12px;
  color:rgba(255,196,0,.45);letter-spacing:2px}
.soon-ic{position:relative;width:74px;height:74px;border-radius:50%;
  border:1px dashed rgba(255,196,0,.45);margin:0 auto 20px;display:grid;place-items:center}
.soon-ic::before,.soon-ic::after{content:"";position:absolute;top:50%;left:50%;
  background:rgba(255,196,0,.65);border-radius:1px}
.soon-ic::before{width:22px;height:1.5px;transform:translate(-50%,-50%)}
.soon-ic::after{width:1.5px;height:22px;transform:translate(-50%,-50%)}
.soon-t{font-size:20px;color:var(--ink-2);letter-spacing:3px;margin-bottom:10px}
.soon-s{font-size:13px;color:var(--dim);line-height:1.9;max-width:300px}

/* ---------- AI 引擎 ---------- */
.ai{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:26px 23px;transition:transform .26s,border-color .26s,box-shadow .26s}
.ai::after{content:"";position:absolute;right:11px;top:11px;width:14px;height:14px;
  border-top:1.5px solid rgba(63,208,201,.5);border-right:1.5px solid rgba(63,208,201,.5)}
.ai:hover{transform:translateY(-4px);border-color:rgba(63,208,201,.42);box-shadow:var(--sh-hi)}
.ai .no{display:block;font-family:var(--mono);font-size:10.5px;color:rgba(63,208,201,.75);
  letter-spacing:1.8px}
.ai-ic{width:46px;height:46px;border-radius:10px;display:grid;place-items:center;margin:14px 0 16px;
  background:rgba(63,208,201,.1);border:1px solid rgba(63,208,201,.3);color:var(--cy)}
.ai h3{font-size:16.5px;font-weight:700;letter-spacing:1.2px;margin:0 0 9px;color:#E9F1EE}
.ai p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.85}
.ai-note{margin:16px 0 0;font-size:12.5px;color:var(--dim);line-height:1.85;
  border-left:2px solid rgba(63,208,201,.4);padding:2px 0 2px 14px}

/* ---------- AI 能力：左右滚动展示 ---------- */
.aiwrap{position:relative}
.ai-h{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 0 14px}
.ai-h-k{font-family:var(--mono);font-size:10.5px;letter-spacing:1.5px;color:var(--dim);
  min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ai-h-k i{font-style:normal;color:var(--cy);margin-right:9px;letter-spacing:2px}
.ai-nav{display:flex;gap:7px;flex:0 0 auto}
.ai-btn{width:30px;height:30px;border-radius:8px;cursor:pointer;
  border:1px solid var(--line-2);background:rgba(246,252,249,.04);color:var(--ink-2);
  font-size:15px;line-height:1;display:grid;place-items:center;padding:0;
  transition:background .2s,color .2s,border-color .2s,opacity .2s}
.ai-btn:hover{border-color:var(--yl);color:var(--yl);background:rgba(255,196,0,.12)}
.ai-btn:disabled{opacity:.3;cursor:not-allowed}
.aiscroll{display:flex;gap:14px;overflow-x:auto;overflow-y:hidden;
  scroll-snap-type:x mandatory;scroll-behavior:smooth;
  padding:2px 0 12px;scrollbar-width:thin;
  scrollbar-color:rgba(255,196,0,.45) rgba(246,252,249,.06);
  -webkit-overflow-scrolling:touch}
.aiscroll:focus-visible{outline:2px solid var(--yl);outline-offset:3px;border-radius:12px}
.aiscroll::-webkit-scrollbar{height:6px}
.aiscroll::-webkit-scrollbar-track{background:rgba(246,252,249,.06);border-radius:3px}
.aiscroll::-webkit-scrollbar-thumb{background:rgba(255,196,0,.45);border-radius:3px}
.aiscroll::-webkit-scrollbar-thumb:hover{background:var(--yl)}
.aiscroll .ai{flex:0 0 clamp(186px,46%,238px);scroll-snap-align:start;padding:22px 20px}
.aiscroll .ai h3{font-size:15.5px;letter-spacing:1px;margin:0 0 8px}
.aiscroll .ai p{font-size:12.8px;line-height:1.8}
.aiscroll .ai-ic{width:42px;height:42px;margin:12px 0 14px}
.aibar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:2px 0 0}
.aidots{display:flex;gap:7px;flex:0 0 auto}
.ai-dot{width:7px;height:7px;padding:0;border:0;border-radius:50%;cursor:pointer;
  background:rgba(246,252,249,.2);transition:background .2s,width .2s;position:relative}
.ai-dot::after{content:"";position:absolute;inset:-10px;border-radius:50%}
.ai-dot:hover{background:rgba(255,196,0,.6)}
.ai-dot.on{background:var(--yl);width:20px;border-radius:4px}
.aitip{font-family:var(--mono);font-size:10.5px;letter-spacing:1px;color:var(--dim);min-width:0}

/* ---------- 作业流程 ---------- */
.flow{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);
  gap:22px;position:relative}
.flow::before{content:"";position:absolute;left:6%;right:6%;top:50px;height:1px;
  background:repeating-linear-gradient(90deg,rgba(255,196,0,.45) 0 10px,transparent 10px 22px)}
.flow li{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:28px 26px;box-shadow:var(--sh);transition:transform .26s,border-color .26s,box-shadow .26s}
.flow li:hover{transform:translateY(-4px);border-color:rgba(255,196,0,.4);box-shadow:var(--sh-hi)}
.step{width:44px;height:44px;border-radius:10px;display:grid;place-items:center;margin-bottom:18px;
  font-family:var(--mono);font-size:16px;font-weight:700;color:#14181C;
  background:linear-gradient(160deg,var(--yl-2),var(--yl));
  box-shadow:0 8px 18px -10px rgba(255,196,0,.75)}
.flow h4{font-size:17.5px;font-weight:700;letter-spacing:1.2px;margin:0 0 9px;color:#E9F1EE}
.flow p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.9}

/* ---------- 保障 ---------- */
.guard{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.gu{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:26px 24px;
  display:flex;gap:16px;align-items:flex-start;box-shadow:var(--sh);
  transition:transform .26s,border-color .26s,box-shadow .26s}
.gu:hover{transform:translateY(-4px);border-color:rgba(255,196,0,.38);box-shadow:var(--sh-hi)}
.gu-ic{width:40px;height:40px;border-radius:9px;display:grid;place-items:center;flex:0 0 40px;
  background:rgba(255,196,0,.1);border:1px solid rgba(255,196,0,.28);color:var(--yl)}
.gu .k{font-family:var(--mono);font-size:10.5px;color:var(--dim);letter-spacing:1.6px;margin-bottom:6px}
.gu h4{font-size:16px;font-weight:700;letter-spacing:1.2px;margin:0 0 7px;color:#E9F1EE}
.gu p{font-size:13px;color:var(--muted);margin:0;line-height:1.8}

/* ---------- 文字块（关于本站等门面页正文） ---------- */
.fcard{background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:30px 32px;box-shadow:var(--sh)}
.fcard>:first-child{margin-top:0}
.fcard>:last-child{margin-bottom:0}
.fcard p{font-size:14.5px;color:var(--muted);line-height:2;margin:0 0 14px}
.fcard p b{color:var(--ink-2)}
.fcard ul{margin:0;padding:0;list-style:none}
.fcard li{position:relative;font-size:14.5px;color:var(--muted);line-height:2;
  padding-left:18px;margin:0 0 13px}
.fcard li:last-child{margin-bottom:0}
.fcard li::before{content:"";position:absolute;left:0;top:13px;width:6px;height:6px;border-radius:50%;
  background:var(--yl);box-shadow:0 0 8px rgba(255,196,0,.7)}
.fcard li b{color:var(--ink-2)}
.fcard a{color:var(--yl);text-decoration:none;border-bottom:1px dashed rgba(255,196,0,.45)}
.fcard a:hover{color:#E9F1EE}
.mono{font-family:var(--mono);letter-spacing:.4px}
.hint{font-size:13px;color:var(--dim);line-height:1.95;margin:0}
.alert{background:rgba(255,196,0,.07);border:1px solid rgba(255,196,0,.3);
  border-left:3px solid var(--yl);border-radius:8px;padding:15px 20px;
  font-size:13.5px;color:var(--ink-2);line-height:1.95;margin:18px 0 0}
.alert b{color:var(--yl)}
.alert a{color:var(--yl);text-decoration:none;border-bottom:1px dashed rgba(255,196,0,.5)}
.alert a:hover{color:#E9F1EE}
code{background:rgba(246,252,249,.055);border:1px solid var(--line);border-radius:5px;
  padding:1px 6px;font-family:var(--mono);font-size:12.8px;color:var(--yl)}
.mt24{margin-top:24px}

/* ---------- 页脚 ---------- */
.foot{margin-top:60px;background:var(--bg-2);border-top:1px solid var(--line);position:relative}
.foot::before{content:"";position:absolute;left:0;right:0;top:-1px;height:2px;
  background:linear-gradient(90deg,rgba(255,196,0,.8) 0 150px,transparent 150px)}
.foot-in{max-width:1180px;margin:0 auto;padding:42px 32px 20px;display:grid;
  grid-template-columns:1.45fr .82fr .82fr 1.3fr;gap:32px}
.foot h5{font-size:13px;font-weight:700;letter-spacing:2px;margin:0 0 14px;color:#E9F1EE}
.foot a{display:block;font-size:13.5px;color:var(--muted);text-decoration:none;line-height:2.1;
  transition:color .2s}
.foot a:hover{color:var(--yl)}
.foot .about{font-size:13.5px;color:var(--muted);line-height:2;margin:0}
.foot .mail{font-family:var(--mono);color:var(--yl);letter-spacing:.4px}
.foot .mail:hover{color:#E9F1EE}
.foot-bot{border-top:1px solid var(--line);text-align:center;font-size:11.5px;color:var(--dim);
  padding:16px 32px;font-family:var(--mono);letter-spacing:1px}
.foot-bot a{display:inline;color:var(--dim);text-decoration:none;transition:color .2s}
.foot-bot a:hover{color:var(--yl)}
.foot-bot .gap{display:inline-block;width:12px}

/* ---------- 滚动淡入 ---------- */
html.js .rv{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
html.js .rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  html.js .rv{opacity:1;transform:none}
  .btn,.app,.ai,.flow li,.gu{transition:none}
  .aiscroll{scroll-behavior:auto}
  .strip .sdot{animation:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1040px){
  .hero-in{grid-template-columns:1fr;gap:34px;padding:38px 32px}
  .dash{grid-template-columns:repeat(2,1fr)}
  .dash li:nth-child(2){border-right:0}
  .dash li:nth-child(1),.dash li:nth-child(2){border-bottom:1px solid var(--line)}
  .apps,.flow,.guard{grid-template-columns:1fr}
  .flow::before{display:none}
  .foot-in{grid-template-columns:repeat(2,1fr);gap:26px}
}
@media (max-width:860px){
  .burger{display:flex}
  .nav{display:none;position:absolute;left:0;right:0;top:68px;flex-direction:column;align-items:stretch;
    gap:0;background:#182121;border:1px solid var(--line);border-radius:0 0 12px 12px;padding:10px;
    box-shadow:0 24px 40px -22px rgba(0,0,0,.9)}
  .nav a{padding:13px 16px;border-radius:6px}
  .nav a::after{display:none}
  .nt:checked ~ .nav{display:flex}
}
@media (max-width:680px){
  .strip-in{padding:0 20px;height:34px;gap:10px}
  .strip span{font-size:10.5px;letter-spacing:.4px}
  .strip span:first-child{display:none}
  .top-in{padding:0 20px;height:66px}
  .wrap,.foot-in,.foot-bot{padding-left:20px;padding-right:20px}
  .foot-in{grid-template-columns:1fr;gap:22px}
  .aiscroll .ai{flex:0 0 min(76%,248px)}
  .ai-h-k .k-s{display:none}
  .ai-btn{width:40px;height:40px;font-size:19px;border-radius:10px}
  .aidots{gap:10px}
  .ai-dot{width:9px;height:9px}
  .ai-dot.on{width:24px}
  .hero{padding:26px 0 0}
  .hero-in{padding:28px 20px;border-radius:12px}
  .hero h1{font-size:27px;letter-spacing:1.2px;line-height:1.42}
  .hero .lead{font-size:16px}
  .hero .desc{font-size:13.5px}
  .eyebrow{letter-spacing:1.6px;padding:6px 13px;margin-bottom:18px}
  .btn{padding:12px 20px;font-size:14.5px}
  .brand b{font-size:16px}
  .brand span span{display:none}
  .mark{width:40px;height:40px;flex:0 0 40px;border-radius:9px}
  .dash li{padding:17px 19px}
  .dash b{font-size:19px}
  .dash .k{font-size:10px;letter-spacing:1px}
  .sec{padding:38px 0 0}
  .sec-h{flex-direction:column;align-items:flex-start;gap:8px}
  .sec-h h1,.sec-h h2{font-size:20px;letter-spacing:1.6px}
  .app{padding:28px 22px 24px}
  .app h3{font-size:21px}
  .app-ic{width:60px;height:60px;flex:0 0 60px}
  .flow li,.gu{padding:23px 21px}
  .fcard{padding:24px 20px}
  .foot{margin-top:42px}
}