/* ==========================================================
   棱镜 PRISM · 设计系统
   深色编辑风 / 瑞士网格 / 等宽编号 / 胶片颗粒
   ========================================================== */

:root{
  /* 色板 */
  --bg:      #0A0B0C;
  --bg-1:    #0F1013;
  --bg-2:    #15171B;
  --bg-3:    #1C1F24;
  --ink:     #EFECE4;
  --ink-2:   #9C9890;
  --ink-3:   #635F59;
  --line:    rgba(239,236,228,.09);
  --line-2:  rgba(239,236,228,.17);
  --line-3:  rgba(239,236,228,.28);
  --acc:     #C2402F;
  --acc-lo:  #8E2C1E;
  --acc-hi:  #E0553E;

  /* 字体 */
  --serif: "Songti SC","STSong","Source Han Serif SC","Noto Serif SC",Georgia,"Times New Roman",serif;
  --sans:  -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:  ui-monospace,"SFMono-Regular","SF Mono",Menlo,Monaco,Consolas,"Liberation Mono",monospace;

  /* 节奏 */
  --gut: 24px;
  --max: 1180px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent;}

html{scroll-behavior:smooth;}

body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
  line-height:1.6;
}

/* 胶片颗粒 —— 压掉数字感的塑料味 */
body::after{
  content:"";
  position:fixed; inset:0;
  z-index:9998;
  pointer-events:none;
  opacity:.05;
  mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/><feColorMatrix type='saturate' values='0'/></filter><rect width='160' height='160' filter='url(%23n)'/></svg>");
}

::selection{background:var(--acc);color:#fff;}

a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}

/* ---------- 布局骨架 ---------- */
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gut);}

/* 顶部阅读进度 */
.prog{
  position:fixed;top:0;left:0;height:2px;width:0;
  background:linear-gradient(90deg,var(--acc-lo),var(--acc-hi));
  z-index:9999;transition:width .1s linear;
}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:900;
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  background:rgba(10,11,12,.72);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.nav.solid{border-bottom-color:var(--line);background:rgba(10,11,12,.92);}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:62px;}

.brand{display:flex;align-items:center;gap:11px;}
.brand .mark{width:22px;height:22px;flex-shrink:0;}
.brand .mark svg{width:100%;height:100%;display:block;}
.brand b{
  font-family:var(--serif);font-size:16px;font-weight:500;
  letter-spacing:.22em;
}
.brand em{
  font-style:normal;font-family:var(--mono);font-size:9px;
  letter-spacing:.3em;color:var(--ink-3);
  padding-left:11px;margin-left:1px;border-left:1px solid var(--line-2);
}
@media(max-width:520px){.brand em{display:none;}}

.navlinks{display:flex;align-items:center;gap:26px;}
.navlinks a{
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;
  color:var(--ink-2);text-transform:uppercase;
  position:relative;padding:4px 0;transition:color .2s;
}
.navlinks a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--acc);transition:width .28s var(--ease);
}
.navlinks a:hover{color:var(--ink);}
.navlinks a:hover::after{width:100%;}
@media(max-width:760px){.navlinks a[data-opt]{display:none;}}

/* ---------- 通用排版件 ---------- */
.mono{
  font-family:var(--mono);font-size:10px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--ink-3);
}
.num{
  font-family:var(--mono);font-size:10px;letter-spacing:.2em;
  color:var(--acc);
}

/* 区块：左窄标签 + 右宽内容（编辑式非对称） */
.sec{padding:104px 0;border-top:1px solid var(--line);scroll-margin-top:62px;}
.end{scroll-margin-top:62px;}
.sec-head{
  display:grid;grid-template-columns:190px 1fr;gap:32px;
  margin-bottom:56px;align-items:start;
}
.sec-head .lbl{position:relative;padding-top:6px;}
.sec-head .lbl .idx{
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;
  color:var(--acc);display:block;margin-bottom:9px;
}
.sec-head .lbl .en{
  font-family:var(--mono);font-size:9px;letter-spacing:.3em;
  color:var(--ink-3);text-transform:uppercase;display:block;
}
.sec-head .ttl h2{
  font-family:var(--serif);font-size:clamp(26px,3.4vw,38px);
  font-weight:500;letter-spacing:.03em;line-height:1.4;
}
.sec-head .ttl p{
  margin-top:16px;font-size:13.5px;line-height:2.05;color:var(--ink-2);
  max-width:44em;
}
@media(max-width:860px){
  .sec{padding:72px 0;}
  .sec-head{grid-template-columns:1fr;gap:16px;margin-bottom:38px;}
}

/* ---------- HERO ---------- */
.hero{
  position:relative;
  min-height:100svh;
  display:flex;flex-direction:column;justify-content:center;
  padding:130px 0 84px;
  overflow:hidden;
}
/* 背景：极淡的网格 + 一束斜光 */
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(var(--line) 1px,transparent 1px),
    linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 90% 65% at 50% 42%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 65% at 50% 42%,#000 0%,transparent 78%);
  opacity:.55;
}
.hero::after{
  content:"";position:absolute;pointer-events:none;
  top:-30%;right:-14%;width:68vw;height:120%;
  background:conic-gradient(from 210deg at 50% 50%,transparent 0deg,rgba(194,64,47,.13) 40deg,transparent 92deg);
  filter:blur(46px);
}
.hero .wrap{position:relative;z-index:2;}

.hero .eyebrow{
  display:flex;align-items:center;gap:14px;margin-bottom:34px;
}
.hero .eyebrow .bar{width:38px;height:1px;background:var(--acc);}
.hero .eyebrow span{
  font-family:var(--mono);font-size:10px;letter-spacing:.32em;
  text-transform:uppercase;color:var(--ink-2);
}

.hero h1{
  font-family:var(--serif);
  font-size:clamp(40px,7.6vw,84px);
  font-weight:500;
  line-height:1.12;
  letter-spacing:.005em;
  margin-bottom:34px;
}
.hero h1 .ln{display:block;overflow:hidden;}
.hero h1 .ln i{
  display:block;font-style:normal;
  animation:rise 1.05s var(--ease) both;
}
.hero h1 .ln:nth-child(2) i{animation-delay:.1s;}
.hero h1 .ln:nth-child(3) i{animation-delay:.2s;}
.hero h1 em{
  font-style:normal;color:var(--acc);
  position:relative;
}
@keyframes rise{from{transform:translateY(105%);opacity:0;}to{transform:translateY(0);opacity:1;}}

.hero .lead{
  font-size:14.5px;line-height:2.05;color:var(--ink-2);
  max-width:33em;margin-bottom:42px;
  animation:fade .9s var(--ease) .34s both;
}
@keyframes fade{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:none;}}

.hero-acts{display:flex;align-items:center;gap:18px;flex-wrap:wrap;animation:fade .9s var(--ease) .46s both;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:12px;
  height:54px;padding:0 34px;
  background:var(--ink);color:#0A0B0C;
  font-size:13.5px;font-family:inherit;letter-spacing:.1em;
  border:1px solid var(--ink);border-radius:0;cursor:pointer;
  transition:background .22s,color .22s,border-color .22s;
  position:relative;overflow:hidden;
}
.btn svg{width:15px;height:15px;transition:transform .28s var(--ease);}
.btn:hover{background:var(--acc);border-color:var(--acc);color:#fff;}
.btn:hover svg{transform:translateX(4px);}
.btn.ghost{
  background:transparent;color:var(--ink);border-color:var(--line-2);
}
.btn.ghost:hover{border-color:var(--ink);background:transparent;color:var(--ink);}

.hero-meta{
  display:flex;gap:44px;margin-top:76px;padding-top:26px;
  border-top:1px solid var(--line);flex-wrap:wrap;
  animation:fade .9s var(--ease) .58s both;
}
.hero-meta div b{
  display:block;font-family:var(--serif);font-size:26px;font-weight:500;
  line-height:1.2;letter-spacing:.02em;
}
.hero-meta div span{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--ink-3);margin-top:7px;display:block;
}
@media(max-width:600px){
  .hero{min-height:auto;padding:112px 0 64px;}
  .hero-meta{gap:28px;margin-top:52px;}
  .hero-meta div b{font-size:21px;}
  .btn{width:100%;}
}

/* 右下角竖排小字 —— 编辑设计细节 */
.vnote{
  position:absolute;right:var(--gut);bottom:38px;z-index:2;
  writing-mode:vertical-rl;
  font-family:var(--mono);font-size:9px;letter-spacing:.34em;
  text-transform:uppercase;color:var(--ink-3);
}
@media(max-width:900px){.vnote{display:none;}}

/* ---------- 跑马灯 ---------- */
.ticker{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  overflow:hidden;padding:17px 0;background:var(--bg-1);
  display:flex;
}
.ticker-track{
  display:flex;flex-shrink:0;gap:52px;padding-right:52px;
  animation:slide 34s linear infinite;
  white-space:nowrap;
}
.ticker-track span{
  font-family:var(--mono);font-size:11px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--ink-3);
  display:flex;align-items:center;gap:52px;
}
.ticker-track span::after{
  content:"";width:4px;height:4px;background:var(--acc);
  flex-shrink:0;display:block;
}
@keyframes slide{to{transform:translateX(-100%);}}
.ticker:hover .ticker-track{animation-play-state:paused;}

/* ---------- 产品网格 ---------- */
.grid{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:1px;background:var(--line);
  border:1px solid var(--line);
}
.card{
  background:var(--bg);padding:36px 34px 30px;
  position:relative;display:block;
  transition:background .34s var(--ease);
  overflow:hidden;
}
.card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;
  background:var(--acc);transform:scaleY(0);transform-origin:top;
  transition:transform .42s var(--ease);
}
.card:hover{background:var(--bg-2);}
.card:hover::before{transform:scaleY(1);}

.card .top{
  display:flex;align-items:flex-start;justify-content:space-between;
  margin-bottom:26px;
}
.card .idx{
  font-family:var(--mono);font-size:10px;letter-spacing:.2em;color:var(--ink-3);
}
.card .glyph{width:52px;height:52px;flex-shrink:0;opacity:.85;transition:opacity .3s,transform .5s var(--ease);}
.card:hover .glyph{opacity:1;transform:translateY(-3px);}
.card .glyph svg{width:100%;height:100%;display:block;}

.card h3{
  font-family:var(--serif);font-size:23px;font-weight:500;
  letter-spacing:.04em;line-height:1.45;margin-bottom:10px;
}
.card .sub{
  font-size:12.5px;color:var(--ink-2);line-height:1.9;
  min-height:2.5em;margin-bottom:24px;
}
.card .foot{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:19px;border-top:1px solid var(--line);
}
.card .meta{
  display:flex;gap:16px;flex-wrap:wrap;
  font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;
  color:var(--ink-3);text-transform:uppercase;
}
.card .go{
  display:flex;align-items:center;gap:7px;
  font-family:var(--mono);font-size:10px;letter-spacing:.18em;
  color:var(--ink-2);text-transform:uppercase;
  transition:color .26s;
}
.card .go svg{width:13px;height:13px;transition:transform .3s var(--ease);}
.card:hover .go{color:var(--acc);}
.card:hover .go svg{transform:translateX(5px);}

@media(max-width:860px){
  .grid{grid-template-columns:1fr;}
  .card{padding:30px 24px 26px;}
  .card h3{font-size:20px;}
}

/* 首页网格超量时的展开入口 */
.more-wrap{margin-top:22px;display:flex;justify-content:center;}
.more-wrap .btn{min-width:210px;}

/* ---------- 方法 / 步骤 ---------- */
.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.col{background:var(--bg);padding:34px 30px 38px;transition:background .3s;}
.col:hover{background:var(--bg-2);}
.col .k{
  font-family:var(--mono);font-size:26px;color:var(--line-3);
  line-height:1;letter-spacing:-.02em;display:block;margin-bottom:22px;
  transition:color .3s;
}
.col:hover .k{color:var(--acc);}
.col h4{
  font-family:var(--serif);font-size:17px;font-weight:500;
  letter-spacing:.05em;margin-bottom:12px;
}
.col p{font-size:12.5px;line-height:2;color:var(--ink-2);}
@media(max-width:860px){.cols{grid-template-columns:1fr;}}

/* ---------- 清单 ---------- */
.rows{border-top:1px solid var(--line);}
.row{
  display:grid;grid-template-columns:64px 1fr;gap:24px;
  padding:26px 0;border-bottom:1px solid var(--line);
  align-items:baseline;
  transition:padding-left .3s var(--ease);
}
.row:hover{padding-left:10px;}
.row .rk{font-family:var(--mono);font-size:10px;letter-spacing:.2em;color:var(--acc);}
.row .bd h4{font-size:14.5px;font-weight:500;letter-spacing:.03em;margin-bottom:8px;}
.row .bd p{font-size:12.5px;line-height:1.95;color:var(--ink-2);max-width:46em;}
@media(max-width:600px){.row{grid-template-columns:1fr;gap:8px;}}

/* ---------- 目录式列表 ---------- */
.dir{margin-bottom:58px;}
.dir-h{
  display:flex;align-items:baseline;gap:15px;
  padding-bottom:13px;margin-bottom:2px;
  border-bottom:1px solid var(--line-2);
}
.dir-h .n{font-family:var(--mono);font-size:11px;color:var(--acc);letter-spacing:.18em;}
.dir-h .t{font-family:var(--serif);font-size:19px;letter-spacing:.12em;font-weight:500;}
.dir-h .c{
  margin-left:auto;font-family:var(--mono);font-size:10px;
  color:var(--ink-3);letter-spacing:.16em;
}
.entry{
  display:flex;align-items:center;gap:18px;
  padding:21px 0;border-bottom:1px solid var(--line);
  transition:padding-left .32s var(--ease);
}
.entry:hover{padding-left:12px;}
.entry .no{
  font-family:var(--mono);font-size:10px;color:var(--ink-3);
  letter-spacing:.16em;width:24px;flex-shrink:0;
}
.entry .tt{flex:1;min-width:0;}
.entry .tt h3{
  font-size:16.5px;font-weight:400;letter-spacing:.04em;
  margin-bottom:5px;transition:color .26s;
}
.entry:hover .tt h3{color:#fff;}
.entry .tt p{font-size:12px;color:var(--ink-2);line-height:1.85;}
.entry .mm{
  display:flex;gap:14px;flex-shrink:0;
  font-family:var(--mono);font-size:9.5px;color:var(--ink-3);
  letter-spacing:.14em;text-transform:uppercase;
}
.entry .ar{
  width:15px;height:15px;flex-shrink:0;stroke:var(--ink-3);
  transition:transform .3s var(--ease),stroke .3s;
}
.entry:hover .ar{transform:translateX(5px);stroke:var(--acc);}
@media(max-width:640px){
  .entry{flex-wrap:wrap;gap:10px 14px;}
  .entry .no{width:auto;}
  .entry .tt{flex:1 1 100%;order:3;}
  .entry .mm{order:2;margin-left:auto;}
  .entry .ar{order:1;margin-left:auto;}
  .entry:hover{padding-left:6px;}
}

/* ---------- 步骤时间线 ---------- */
.steps{
  list-style:none;
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line-2);
  counter-reset:st;
}
.steps li{
  position:relative;
  padding:0 34px 4px 0;
  transition:transform .4s var(--ease);
}
.steps li:last-child{padding-right:0;}
.steps li::before{
  content:"";position:absolute;top:-4px;left:0;
  width:7px;height:7px;border-radius:50%;
  background:var(--acc);
  box-shadow:0 0 0 5px var(--bg);
}
.steps li .sn{
  display:block;margin-top:26px;margin-bottom:14px;
  font-family:var(--mono);font-size:10px;letter-spacing:.24em;color:var(--acc);
}
.steps li h4{
  font-family:var(--serif);font-size:18px;font-weight:500;
  letter-spacing:.05em;margin-bottom:10px;
}
.steps li p{font-size:12.5px;line-height:2;color:var(--ink-2);max-width:20em;}
@media(max-width:860px){
  .steps{grid-template-columns:1fr;}
  .steps li{padding:26px 0 26px 26px;border-left:1px solid var(--line);}
  .steps li::before{top:32px;left:-4px;box-shadow:0 0 0 5px var(--bg);}
  .steps li .sn{margin-top:0;float:left;margin-right:12px;}
  .steps li:last-child{border-left-color:transparent;}
}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);}
.qa{border-bottom:1px solid var(--line);}
.qa .q{
  width:100%;background:none;border:none;cursor:pointer;
  display:flex;align-items:center;gap:20px;
  padding:24px 0;text-align:left;font-family:inherit;color:inherit;
}
.qa .q .qn{font-family:var(--mono);font-size:10px;color:var(--ink-3);letter-spacing:.16em;flex-shrink:0;}
.qa .q .qt{flex:1;font-size:14.5px;letter-spacing:.02em;font-weight:400;}
.qa .q .qi{
  width:13px;height:13px;flex-shrink:0;position:relative;
  transition:transform .34s var(--ease);
}
.qa .q .qi::before,.qa .q .qi::after{
  content:"";position:absolute;background:var(--ink-2);
  top:50%;left:0;width:13px;height:1px;transition:opacity .3s,background .3s;
}
.qa .q .qi::after{transform:rotate(90deg);}
.qa.open .q .qi{transform:rotate(45deg);}
.qa.open .q .qi::before{background:var(--acc);}
.qa .a{
  max-height:0;overflow:hidden;
  transition:max-height .42s var(--ease);
}
.qa .a p{
  font-size:13px;line-height:2.05;color:var(--ink-2);
  padding:0 0 26px 46px;max-width:48em;
}
@media(max-width:600px){.qa .a p{padding-left:0;}}

/* ---------- 结尾 CTA ---------- */
.end{
  border-top:1px solid var(--line);
  padding:108px 0 116px;text-align:center;position:relative;overflow:hidden;
}
.end::before{
  content:"";position:absolute;top:50%;left:50%;
  width:min(760px,92vw);aspect-ratio:1;
  transform:translate(-50%,-50%);
  background:radial-gradient(circle,rgba(194,64,47,.12) 0%,transparent 62%);
  pointer-events:none;
}
.end .wrap{position:relative;z-index:2;}
.end h2{
  font-family:var(--serif);font-size:clamp(28px,4.6vw,50px);
  font-weight:500;letter-spacing:.03em;line-height:1.35;margin-bottom:20px;
}
.end p{font-size:13.5px;color:var(--ink-2);line-height:2;margin-bottom:38px;}
.end .btn{margin:0 auto;}
@media(max-width:600px){.end{padding:76px 0 84px;}}

/* ---------- 页脚 ---------- */
footer{border-top:1px solid var(--line);padding:44px 0 54px;background:var(--bg-1);}
.fgrid{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:flex-end;}
footer .fl{font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--ink-3);text-transform:uppercase;line-height:2.1;}
footer .fr{display:flex;gap:22px;flex-wrap:wrap;}
footer .fr a{font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--ink-3);text-transform:uppercase;transition:color .22s;}
footer .fr a:hover{color:var(--ink);}

/* ---------- 产品详情页 ---------- */
.p-hero{
  position:relative;overflow:hidden;
  padding:126px 0 54px;
  border-bottom:1px solid var(--line);
}
.p-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(var(--line) 1px,transparent 1px),
    linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 70% at 20% 40%,#000 0%,transparent 76%);
  -webkit-mask-image:radial-gradient(ellipse 80% 70% at 20% 40%,#000 0%,transparent 76%);
  opacity:.5;
}
.p-hero::after{
  content:"";position:absolute;pointer-events:none;
  top:-40%;right:-10%;width:56vw;height:150%;
  background:conic-gradient(from 200deg at 50% 50%,transparent 0deg,rgba(194,64,47,.14) 38deg,transparent 88deg);
  filter:blur(48px);
}
.p-hero .wrap{position:relative;z-index:2;}
.p-back{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:10px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--ink-3);margin-bottom:34px;
  transition:color .24s;
}
.p-back svg{width:12px;height:12px;transition:transform .28s var(--ease);}
.p-back:hover{color:var(--ink);}
.p-back:hover svg{transform:translateX(-4px);}
.p-hero h1{
  font-family:var(--serif);
  font-size:clamp(30px,5.2vw,54px);
  font-weight:500;letter-spacing:.02em;line-height:1.24;
  margin-bottom:18px;
}
.p-desc{font-size:14px;line-height:2;color:var(--ink-2);max-width:30em;}

.p-main{padding:54px 0 96px;}
.p-grid{display:grid;grid-template-columns:1fr 330px;gap:60px;align-items:start;}
.p-body{min-width:0;}
.p-stats{
  display:flex;gap:0;margin-bottom:34px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.p-stats div{
  flex:1;padding:20px 14px 20px 0;
  border-right:1px solid var(--line);
}
.p-stats div:last-child{border-right:none;}
.p-stats b{
  display:block;font-family:var(--serif);font-size:28px;font-weight:500;
  line-height:1.2;letter-spacing:.02em;
}
.p-stats span{
  display:block;margin-top:8px;
  font-family:var(--mono);font-size:9.5px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--ink-3);
}
.p-intro{
  font-size:13.5px;line-height:2.1;color:var(--ink-2);
  margin-bottom:38px;max-width:36em;
}
.p-cta{max-width:320px;}
.p-hint{
  margin-top:16px;font-family:var(--mono);font-size:10px;
  letter-spacing:.16em;color:var(--ink-3);text-transform:uppercase;
}

.p-side{position:sticky;top:88px;}
.pcard{
  border:1px solid var(--line-2);background:var(--bg-1);
  padding:28px 26px 26px;
}
.pcard .num{display:block;margin-bottom:14px;}
.pcard h4{
  font-family:var(--serif);font-size:16px;font-weight:500;
  letter-spacing:.06em;margin-bottom:20px;
  padding-bottom:16px;border-bottom:1px solid var(--line);
}
.plist{list-style:none;margin-bottom:22px;}
.plist li{
  display:flex;align-items:flex-start;gap:11px;
  padding:9px 0;font-size:12.5px;color:var(--ink-2);line-height:1.7;
}
.plist li svg{width:14px;height:14px;flex-shrink:0;margin-top:3px;color:var(--acc);}
.p-shop{
  display:flex;align-items:center;justify-content:center;gap:9px;
  height:46px;border:1px solid var(--line-2);
  font-size:12.5px;letter-spacing:.04em;color:var(--ink);
  transition:border-color .26s,background .26s,color .26s;
}
.p-shop svg{width:15px;height:15px;}
.p-shop:hover{background:var(--ink);color:#0A0B0C;border-color:var(--ink);}

@media(max-width:900px){
  .p-grid{grid-template-columns:1fr;gap:40px;}
  .p-side{position:static;}
  .p-main{padding:40px 0 72px;}
  .p-hero{padding:104px 0 44px;}
}

/* ---------- 授权码弹层 ---------- */
.mask{
  position:fixed;inset:0;z-index:1000;
  background:rgba(6,7,8,.84);
  backdrop-filter:blur(7px);-webkit-backdrop-filter:blur(7px);
  opacity:0;pointer-events:none;transition:opacity .28s var(--ease);
  display:flex;align-items:flex-end;justify-content:center;
}
.mask.open{opacity:1;pointer-events:auto;}
.sheet{
  width:100%;max-width:440px;
  background:var(--bg-1);border:1px solid var(--line-2);border-bottom:none;
  padding:30px 26px calc(24px + env(safe-area-inset-bottom));
  transform:translateY(101%);transition:transform .36s var(--ease);
}
.mask.open .sheet{transform:translateY(0);}
.sh-head{display:flex;align-items:center;gap:11px;margin-bottom:14px;}
.sh-head svg{width:17px;height:17px;color:var(--acc);}
.sh-head h3{font-family:var(--serif);font-size:18px;font-weight:500;letter-spacing:.06em;}
.sh-prod{
  display:inline-block;margin-bottom:12px;
  padding:5px 11px;border:1px solid var(--line-2);
  font-size:12px;letter-spacing:.05em;color:var(--ink);
  background:var(--bg);
}
.sh-sub{font-size:12px;color:var(--ink-2);line-height:1.85;margin-bottom:20px;}
.sheet input{
  width:100%;height:52px;
  background:var(--bg);border:1px solid var(--line-2);
  padding:0 15px;font-size:16px;font-family:var(--mono);
  letter-spacing:.16em;color:var(--ink);outline:none;
  transition:border-color .24s;
}
.sheet input:focus{border-color:var(--acc);}
.sheet input::placeholder{font-family:var(--sans);letter-spacing:0;color:var(--ink-3);}
.sh-tip{
  min-height:17px;margin-top:10px;
  font-size:11.5px;letter-spacing:.03em;color:var(--acc-hi);
}
.sh-acts{display:flex;gap:10px;margin-top:16px;}
.sh-cancel,.sh-go{
  height:48px;border-radius:0;font-family:inherit;font-size:13.5px;cursor:pointer;
  letter-spacing:.06em;transition:background .24s,color .24s,border-color .24s;
}
.sh-cancel{
  flex:1;background:transparent;border:1px solid var(--line-2);color:var(--ink-2);
}
.sh-cancel:hover{border-color:var(--ink);color:var(--ink);}
.sh-go{flex:1.5;background:var(--ink);border:1px solid var(--ink);color:#0A0B0C;}
.sh-go:hover{background:var(--acc);border-color:var(--acc);color:#fff;}
.sh-shop{
  display:flex;align-items:center;gap:9px;
  height:48px;margin-top:14px;padding:0 14px;
  border:1px solid var(--line-2);background:rgba(194,64,47,.07);
  font-size:12.5px;color:var(--ink);letter-spacing:.03em;
  transition:background .24s,border-color .24s;
}
.sh-shop > svg:first-child{width:15px;height:15px;flex-shrink:0;color:var(--acc);}
.sh-shop span{flex:1;}
.sh-shop svg:last-child{width:14px;height:14px;flex-shrink:0;color:var(--ink-3);transition:transform .28s var(--ease);}
.sh-shop:hover{background:rgba(194,64,47,.14);border-color:var(--acc);}
.sh-shop:hover svg:last-child{transform:translateX(4px);color:var(--ink);}
.sh-noshop{
  margin-top:14px;padding:11px 0;text-align:center;
  font-family:var(--mono);font-size:10px;letter-spacing:.12em;color:var(--ink-3);
}
body.lock{overflow:hidden;}
@media(min-width:600px){
  .mask{align-items:center;}
  .sheet{border:1px solid var(--line-2);max-width:420px;}
}

/* ---------- 草稿预览提示条 ---------- */
.dbar{
  position:fixed;left:0;right:0;bottom:0;z-index:9997;
  display:flex;align-items:center;gap:12px;
  padding:11px calc(24px + env(safe-area-inset-right)) 11px 24px;
  background:rgba(194,64,47,.15);
  border-top:1px solid rgba(194,64,47,.42);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--ink);
  padding-bottom:calc(11px + env(safe-area-inset-bottom));
}
.dbar .dot{
  width:6px;height:6px;border-radius:50%;background:var(--acc);
  flex-shrink:0;animation:blink 1.7s ease-in-out infinite;
}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.2}}
.dbar .tx{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.dbar button{
  background:none;border:1px solid var(--line-2);color:var(--ink);
  height:27px;padding:0 13px;flex-shrink:0;cursor:pointer;
  font-family:var(--mono);font-size:10px;letter-spacing:.14em;
  transition:background .22s,color .22s,border-color .22s;
}
.dbar button:hover{background:var(--ink);color:#0A0B0C;border-color:var(--ink);}
body.has-dbar{padding-bottom:52px;}
@media(max-width:600px){.dbar .tx{font-size:9.5px;letter-spacing:.06em;}}

/* ---------- 进场动画 ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease);}
.rv.in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  .rv{opacity:1;transform:none;}
}