/* 归箱 官网 · 设计系统与动效
   取自 App 同一套语言：陶土橙 / 米白 / 竹绿、圆角卡片、暖光与投影光带。
   动效节奏与 App 对齐：暖光亮起 → 主体落位（弹簧）→ 字标收紧 → 内容错峰入场。 */

:root{
  --ink:#292D29;
  --ink-soft:#3A3E39;
  --cream:#F7F5F0;
  --cream-hi:#FBF7F0;
  --sand:#EEE9DB;
  --orange:#D9693D;
  --orange-hi:#E88A58;
  --orange-soft:rgba(217,105,61,.10);
  --green:#69806A;
  --green-soft:rgba(105,128,106,.12);
  --blue:#668697;
  --blue-soft:rgba(102,134,151,.12);
  --secondary:#6E716A;
  --line:#E9E6DD;
  --card:#FFFFFF;
  --radius:22px;
  --radius-lg:28px;
  --cine:cubic-bezier(.20,.62,.30,1);
  --spring:cubic-bezier(.34,1.32,.44,1);
  --ease-out:cubic-bezier(.22,.61,.36,1);
  --shadow-soft:0 18px 40px rgba(41,45,41,.07);
  --shadow-lift:0 24px 54px rgba(41,45,41,.12);
  --maxw:1080px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;overflow-x:hidden}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* 页面固定为浅色（与 App 一致），避免系统深色模式下滚动条与表单控件变成深色 */
:root{color-scheme:light}

body{
  margin:0;background:var(--cream);color:var(--ink);
  font:16px/1.8 -apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{ /* 全局暖光与暗角，和 App 的启动底色同源 */
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(880px 520px at 18% -6%, rgba(217,105,61,.13), transparent 62%),
    radial-gradient(720px 480px at 92% 4%, rgba(105,128,106,.10), transparent 60%),
    radial-gradient(1200px 900px at 50% 120%, rgba(41,45,41,.06), transparent 70%);
}
.wrap{
  position:relative;z-index:1;max-width:var(--maxw);margin:0 auto;
  padding-left:max(24px,env(safe-area-inset-left));padding-right:max(24px,env(safe-area-inset-right))
}
@supports not (padding: max(0px, env(safe-area-inset-left))){
  .wrap{padding-left:24px;padding-right:24px}
}
body{-webkit-tap-highlight-color:transparent}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:20;
  background:rgba(247,245,240,.72);
  -webkit-backdrop-filter:saturate(180%) blur(14px);backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;transition:border-color .3s var(--cine),background .3s var(--cine),box-shadow .3s var(--cine)
}
.topbar.is-scrolled{border-bottom-color:var(--line);background:rgba(247,245,240,.9);box-shadow:0 10px 30px rgba(41,45,41,.05)}
.topbar .inner{display:flex;align-items:center;gap:14px;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.5px}
.brand img{width:30px;height:30px}
.brand .name{font-size:17px}
.brand .tag{font-size:11px;color:var(--secondary);font-weight:500;letter-spacing:.3px}
.nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.nav a{
  font-size:14px;color:var(--secondary);padding:9px 14px;border-radius:12px;
  transition:color .25s var(--cine),background .25s var(--cine),transform .25s var(--spring)
}
.nav a:hover{color:var(--ink);background:rgba(255,255,255,.85)}
.nav a:active{transform:scale(.96)}
.nav a.is-active{color:var(--ink);background:#fff;box-shadow:inset 0 0 0 1px var(--line)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;font-size:15px;font-weight:600;
  padding:15px 24px;border-radius:18px;border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--spring),box-shadow .3s var(--cine),background .3s var(--cine),color .3s var(--cine)
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 14px 30px rgba(217,105,61,.24)}
.btn-primary:hover{background:#CE5F35;box-shadow:0 18px 38px rgba(217,105,61,.3)}
.btn-primary:active{transform:scale(.975)}
.btn-ghost{background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1px var(--line)}
.btn-ghost:hover{box-shadow:inset 0 0 0 1px var(--line),0 14px 30px rgba(41,45,41,.07)}
.btn-ghost:active{transform:scale(.975)}
.btn .chev{transition:transform .3s var(--spring)}
.btn:hover .chev{transform:translateX(3px)}

/* ---------- 首屏 ---------- */
.hero{position:relative;padding:76px 0 60px;text-align:center}
.hero .bloom{
  position:absolute;left:50%;top:32%;width:min(760px,100%);aspect-ratio:1;border-radius:50%;
  transform:translateX(-50%) scale(.62);
  background:radial-gradient(circle,rgba(217,105,61,.22),rgba(217,105,61,0) 62%);
  opacity:0;pointer-events:none;
  transition:opacity .9s var(--cine) .05s,transform 1s var(--cine) .05s
}
html.is-ready .hero .bloom{opacity:1;transform:translateX(-50%) scale(1)}
.crate-wrap{width:172px;margin:0 auto 8px;animation:floaty 5.6s ease-in-out 1.6s infinite}
.hero .crate{
  filter:drop-shadow(0 18px 30px rgba(217,105,61,.22));
  opacity:0;transform:translateY(26px) scale(.88) rotate(-10deg);
  transition:opacity .5s var(--cine) .2s,transform .8s var(--spring) .2s
}
html.is-ready .hero .crate{opacity:1;transform:translateY(0) scale(1) rotate(-8deg)}
.wordmark{
  font-size:clamp(38px,7vw,60px);font-weight:800;letter-spacing:.42em;text-indent:.42em;line-height:1.1;
  margin:0;opacity:0;transform:scale(.94);
  transition:opacity .5s var(--cine) .44s,letter-spacing .72s var(--cine) .44s,
             text-indent .72s var(--cine) .44s,transform .72s var(--cine) .44s
}
html.is-ready .wordmark{opacity:1;letter-spacing:.06em;text-indent:.06em;transform:scale(1)}
.hero .rule{
  width:0;height:3px;border-radius:2px;background:rgba(217,105,61,.55);margin:22px auto 24px;
  transition:width .62s var(--spring) .76s
}
html.is-ready .hero .rule{width:96px}
.hero .lead{
  max-width:560px;margin:0 auto;color:var(--secondary);font-size:17px;
  opacity:0;transform:translateY(12px);
  transition:opacity .52s var(--cine) .88s,transform .55s var(--spring) .88s
}
html.is-ready .hero .lead{opacity:1;transform:none}
.hero .cta{
  display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:30px;
  opacity:0;transform:translateY(14px);
  transition:opacity .52s var(--cine) 1s,transform .58s var(--spring) 1s
}
html.is-ready .hero .cta{opacity:1;transform:none}
.badges{
  display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:26px;
  opacity:0;transition:opacity .52s var(--cine) 1.12s
}
html.is-ready .badges{opacity:1}
.badge{font-size:13px;color:var(--green);background:var(--green-soft);border-radius:999px;padding:7px 14px}
.badge.orange{color:var(--orange);background:var(--orange-soft)}
.badge.blue{color:var(--blue);background:var(--blue-soft)}

/* ---------- 通用区块 ---------- */
section{padding:60px 0}
section + section{padding-top:24px}
.kicker{font-size:12px;font-weight:700;letter-spacing:.2em;color:var(--orange);margin:0 0 10px}
h2{font-size:clamp(24px,3.4vw,32px);margin:0 0 12px;letter-spacing:.2px}
h3{font-size:18px;margin:0 0 8px}
.sub{color:var(--secondary);margin:0 0 32px;max-width:660px}
.lede{font-size:17px;color:var(--ink-soft)}

.grid{display:grid;gap:18px}
.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
/* 栏数随宽度收敛：三栏 → 两栏 → 单栏；两栏网格在更窄时才变单栏 */
@media (max-width:900px){.grid.three{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:700px){.grid.two{grid-template-columns:1fr}}
@media (max-width:640px){.grid.three{grid-template-columns:1fr}}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  position:relative;overflow:hidden;
  transition:transform .5s var(--spring),box-shadow .4s var(--cine),border-color .4s var(--cine)
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lift);border-color:#DED9CD}
.card[data-tilt]:hover{
  transform:perspective(900px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg)) translateY(-5px)
}
.card::after{ /* 悬停时掠过的柔光，和 App 里的投影光带同源 */
  content:"";position:absolute;top:-40%;left:-30%;width:42%;height:180%;opacity:0;pointer-events:none;
  background:linear-gradient(115deg,rgba(255,255,255,0) 0%,rgba(255,255,255,.7) 50%,rgba(255,255,255,0) 100%);
  transform:translateX(-140%) rotate(8deg);transition:transform .95s var(--cine),opacity .5s var(--cine)
}
.card:hover::after{opacity:1;transform:translateX(380%) rotate(8deg)}
.card .icon{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;margin-bottom:14px;
  background:var(--orange-soft);color:var(--orange);font-size:20px
}
.card .icon.green{background:var(--green-soft);color:var(--green)}
.card .icon.blue{background:var(--blue-soft);color:var(--blue)}
.card p{margin:0;color:var(--secondary);font-size:14.5px}
.card .meta{font-size:12.5px;color:var(--secondary);margin-top:10px}

.steps{counter-reset:step;display:grid;gap:14px}
.step{display:flex;gap:16px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.step .num{
  counter-increment:step;flex:0 0 auto;width:34px;height:34px;border-radius:50%;
  display:grid;place-items:center;background:var(--orange-soft);color:var(--orange);font-weight:800;font-size:14px
}
.step .num::before{content:counter(step)}
.step p{margin:4px 0 0;color:var(--secondary);font-size:14.5px}

/* 使用技巧 */
.tips{display:grid;gap:12px}
.tip{display:flex;gap:14px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:16px 18px}
.tip .dot{width:30px;height:30px;border-radius:10px;background:var(--orange-soft);color:var(--orange);display:grid;place-items:center;font-size:15px;flex:0 0 auto}
.tip span{font-size:14.5px}

/* 常见问题 */
.faq{background:var(--card);border:1px solid var(--line);border-radius:18px;margin-bottom:12px;overflow:hidden;transition:box-shadow .35s var(--cine)}
.faq[open]{box-shadow:var(--shadow-soft)}
.faq summary{
  cursor:pointer;list-style:none;padding:19px 22px;font-weight:600;font-size:15.5px;
  display:flex;align-items:center;justify-content:space-between;gap:16px
}
.faq summary::-webkit-details-marker{display:none}
.faq summary .mark{
  width:22px;height:22px;flex:0 0 auto;position:relative;border-radius:50%;background:var(--sand);
  transition:transform .4s var(--spring),background .3s var(--cine)
}
.faq summary .mark::before,.faq summary .mark::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--secondary);border-radius:2px;transform:translate(-50%,-50%)
}
.faq summary .mark::before{width:10px;height:1.6px}
.faq summary .mark::after{width:1.6px;height:10px;transition:opacity .3s var(--cine)}
.faq[open] summary .mark{transform:rotate(180deg);background:var(--orange-soft)}
.faq[open] summary .mark::after{opacity:0}
.faq .answer{display:grid;grid-template-rows:0fr;transition:grid-template-rows .44s var(--cine)}
.faq[open] .answer{grid-template-rows:1fr}
.faq .answer > div{overflow:hidden}
.faq .answer p{margin:0 22px 20px;color:var(--secondary);font-size:14.5px;opacity:0;transform:translateY(-4px);transition:opacity .3s var(--cine),transform .3s var(--cine)}
.faq[open] .answer p{opacity:1;transform:none;transition-delay:.12s}

/* ---------- 隐私政策页 ---------- */
.policy-hero{padding:60px 0 12px}
.policy-meta{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0 0}
.chip{font-size:12.5px;color:var(--secondary);background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 14px}
.policy-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:44px;align-items:start;padding:32px 0 40px}
@media (max-width:900px){.policy-layout{grid-template-columns:1fr;gap:22px}}
.toc{position:sticky;top:88px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px 14px}
.toc h2{font-size:13px;letter-spacing:.16em;color:var(--secondary);margin:0 0 12px;font-weight:700}
.toc ol{margin:0;padding:0;list-style:none;counter-reset:toc}
.toc li{counter-increment:toc;margin:0 0 4px}
.toc a{
  display:block;font-size:13.5px;color:var(--secondary);padding:7px 12px;border-radius:10px;
  transition:color .25s var(--cine),background .25s var(--cine),transform .3s var(--spring)
}
.toc a:hover{color:var(--ink);background:var(--cream);transform:translateX(2px)}
.toc a.is-current{color:var(--orange);background:var(--orange-soft);font-weight:600}
@media (max-width:900px){.toc{position:static}}
.policy p{color:var(--ink-soft);margin:0 0 14px}
.policy h2{font-size:21px;padding-top:34px;border-bottom:1px solid var(--line);padding-bottom:12px;scroll-margin-top:90px}
.policy h2 .idx{color:var(--orange);font-size:14px;font-weight:700;letter-spacing:.1em;display:block;margin-bottom:6px}
.policy ul{margin:0 0 16px;padding-left:22px;color:var(--ink-soft)}
.policy li{margin:0 0 8px}
.policy .callout{background:#fff;border:1px solid var(--line);border-left:4px solid var(--orange);border-radius:14px;padding:18px 20px;margin:18px 0;color:var(--ink-soft)}
.policy code{background:rgba(41,45,41,.06);border-radius:6px;padding:1px 6px;font-size:14px}

/* ---------- 联系 ---------- */
.contact{background:var(--ink);color:#fff;border-radius:var(--radius-lg);padding:38px;display:flex;gap:28px;flex-wrap:wrap;align-items:center}
.contact h3{font-size:20px;margin:0 0 8px}
.contact p{margin:0;color:rgba(255,255,255,.66);font-size:14.5px;max-width:520px}
.contact .actions{margin-left:auto;display:flex;gap:10px;flex-wrap:wrap}
.contact .btn-ghost{background:rgba(255,255,255,.10);color:#fff;box-shadow:inset 0 0 0 1px rgba(255,255,255,.18)}
.contact .btn-primary{box-shadow:none}

/* ---------- 页脚 ---------- */
footer{
  margin-top:70px;border-top:1px solid var(--line);color:var(--secondary);font-size:13px;
  padding-top:34px;padding-bottom:max(54px,calc(env(safe-area-inset-bottom) + 28px))
}
footer .row{display:flex;gap:18px;flex-wrap:wrap;align-items:center;justify-content:space-between}
footer a{color:var(--secondary)}
footer a:hover{color:var(--ink)}
footer .links{display:flex;gap:16px;flex-wrap:wrap}

/* ---------- 入场 / 滚动显现 ---------- */
[data-reveal]{opacity:0;transform:translateY(18px)}
[data-reveal].is-in{
  opacity:1;transform:none;
  transition:opacity .62s var(--cine) calc(var(--i,0) * 45ms),transform .62s var(--cine) calc(var(--i,0) * 45ms)
}

/* ---------- 页间过场：幕布 + 投影光带 ---------- */
.curtain{
  position:fixed;inset:0;z-index:90;display:grid;place-items:center;
  background:linear-gradient(180deg,var(--cream-hi),#F2E7DA);
  opacity:0;pointer-events:none;overflow:hidden
}
.curtain .inner{display:flex;flex-direction:column;align-items:center;gap:16px}
.curtain .crate{width:104px;filter:drop-shadow(0 14px 26px rgba(217,105,61,.24))}
.curtain .word{font-size:26px;font-weight:800;letter-spacing:.34em;text-indent:.34em;color:var(--ink)}
.curtain .sweep{
  position:absolute;top:-20%;left:-30%;width:22%;height:140%;
  background:linear-gradient(180deg,rgba(255,255,255,0),rgba(255,255,255,.72),rgba(255,255,255,0));
  transform:rotate(14deg);opacity:0
}
html.is-leaving .curtain{opacity:1;pointer-events:all;animation:curtainIn .46s var(--cine) both}
html.is-leaving .curtain .sweep{animation:sweepAcross .72s var(--cine) .06s both}
html.is-leaving .curtain .inner{animation:riseIn .5s var(--spring) .12s both}
html.is-leaving main,html.is-leaving .topbar{opacity:.35;transform:scale(.985);transition:opacity .4s var(--cine),transform .4s var(--cine)}

html.is-arriving .curtain{opacity:1;pointer-events:all;animation:curtainOut .5s var(--cine) .18s both}
html.is-arriving .curtain .sweep{animation:sweepAcross .8s var(--cine) both}
html.is-arriving .curtain .inner{opacity:1;animation:curtainInner .42s var(--cine) both}

/* 首次进入：停留久一点、擦除慢一点，像一次开场 */
html.is-intro .curtain{opacity:1;pointer-events:all;animation:curtainOut .66s var(--cine) .72s both}
html.is-intro .curtain .sweep{animation:sweepAcross 1.05s var(--cine) .12s both}
html.is-intro .curtain .inner{animation:introInner 1.3s var(--cine) both}
html.is-intro .curtain .word{letter-spacing:.06em;text-indent:.06em}
@keyframes introInner{
  0%{opacity:0;transform:scale(.94)}
  22%{opacity:1;transform:scale(1)}
  62%{opacity:1;transform:scale(1)}
  100%{opacity:0;transform:scale(1.05)}
}

/* ---------- 关键帧 ---------- */
@keyframes bloom{from{opacity:0;transform:scale(.6)}to{opacity:1;transform:scale(1)}}
@keyframes crateRise{
  0%{opacity:0;transform:translateY(26px) scale(.86) rotate(-10deg)}
  60%{opacity:1;transform:translateY(-6px) scale(1.02) rotate(-6deg)}
  100%{opacity:1;transform:translateY(0) scale(1) rotate(-8deg)}
}
@keyframes floaty{0%,100%{transform:translateY(0) rotate(-8deg)}50%{transform:translateY(-9px) rotate(-8deg)}}
@keyframes wordmark{
  from{opacity:0;letter-spacing:.62em;text-indent:.62em;transform:scale(.94)}
  to{opacity:1;letter-spacing:.06em;text-indent:.06em;transform:scale(1)}
}
@keyframes rule{from{width:0}to{width:96px}}
@keyframes riseIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes curtainIn{
  from{opacity:0;clip-path:inset(0 100% 0 0)}
  to{opacity:1;clip-path:inset(0 0 0 0)}
}
@keyframes curtainOut{
  from{opacity:1;clip-path:inset(0 0 0 0)}
  to{opacity:0;clip-path:inset(0 0 0 100%)}
}
@keyframes curtainInner{from{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(1.04)}}
@keyframes sweepAcross{
  from{opacity:0;left:-30%}
  20%{opacity:1}
  to{opacity:0;left:120%}
}

/* ---------- 减弱动效 / 打印 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms!important;animation-iteration-count:1!important;animation-delay:0s!important;
    transition-duration:.001ms!important;transition-delay:0s!important
  }
  [data-reveal]{opacity:1;transform:none}
  .hero .bloom,.hero .crate,.wordmark,.hero .lead,.hero .cta,.badges{opacity:1!important;transform:none!important}
  .hero .rule{width:96px!important}
  .curtain{display:none}
}
@media print{
  .topbar,.curtain,footer .links,.toc,.contact .actions{display:none}
  body{background:#fff}
  .policy-layout{display:block}
  section{padding:0}
  .card,.faq{break-inside:avoid}
}

/* 键盘可达性 */
:focus-visible{outline:3px solid rgba(217,105,61,.5);outline-offset:3px;border-radius:8px}
.skip{
  position:absolute;left:-999px;top:8px;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:10px 16px;z-index:100
}
.skip:focus{left:16px}

/* ---------- 窄屏适配 ---------- */
@media (max-width:640px){
  .wrap{
    padding-left:max(18px,env(safe-area-inset-left));
    padding-right:max(18px,env(safe-area-inset-right))
  }
  .topbar .inner{height:58px;gap:10px}
  .brand img{width:26px;height:26px}
  .brand .name{font-size:16px}
  .brand .tag{display:none}
  .nav{gap:2px}
  .nav a{padding:8px 10px;font-size:13px}
  .hero{padding:44px 0 40px}
  .crate-wrap{width:138px}
  .hero .lead{font-size:15.5px}
  .hero .cta{gap:10px;margin-top:24px}
  .btn{padding:13px 20px;font-size:14.5px}
  section{padding:44px 0}
  .contact{padding:26px 22px}
  .contact .actions{margin-left:0;width:100%}
  .contact .btn{width:100%;justify-content:center}
  .step{padding:18px}
  .card{padding:20px}
  .policy h2{font-size:19px}
}

/* ==========================================================================
   成熟度升级：进度条、胶片颗粒、指针柔光、视差、产品界面、规格表、更新记录、页脚
   ========================================================================== */

/* 滚动进度 */
.progress{
  position:fixed;top:0;left:0;width:100%;height:2px;z-index:60;
  background:linear-gradient(90deg,var(--orange),var(--orange-hi));
  transform:scaleX(var(--progress,0));transform-origin:0 50%;
  opacity:.9;pointer-events:none
}

/* 胶片颗粒：极低透明度的一层噪点，给页面一点质感 */
body::after{
  content:"";position:fixed;inset:0;z-index:3;pointer-events:none;opacity:.04;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E")
}
@media (prefers-reduced-motion:reduce){body::after{display:none}}

/* 指针柔光：鼠标在首屏移动时跟随的暖光 */
.hero .pointer{
  position:absolute;inset:-14% -6%;pointer-events:none;opacity:0;
  transition:opacity .6s var(--cine);
  background:radial-gradient(300px 300px at var(--px,50%) var(--py,42%),rgba(255,212,166,.5),rgba(255,212,166,0) 72%)
}
@media (hover:hover) and (pointer:fine){.hero:hover .pointer{opacity:1}}

/* 视差：首屏主体随滚动缓慢上移 */
.crate-parallax{transform:translate3d(0,calc(var(--scroll,0) * -0.05px),0);will-change:transform}
.bloom-parallax{position:absolute;inset:0;transform:translate3d(0,calc(var(--scroll,0) * 0.03px),0);pointer-events:none}
@media (prefers-reduced-motion:reduce){
  .crate-parallax,.bloom-parallax{transform:none!important}
}

/* 区块编号 */
.kicker .num{font-variant-numeric:tabular-nums;opacity:.7;margin-right:8px}

/* 产品界面 */
.screens{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;align-items:start}
.screens .item:nth-child(2){transform:translateY(30px)}
.screens .item:nth-child(3){transform:translateY(60px)}
.device{
  position:relative;border-radius:40px;padding:10px;
  background:linear-gradient(158deg,#31363C,#14171A);
  box-shadow:0 44px 80px rgba(41,45,41,.26),inset 0 0 0 1px rgba(255,255,255,.07)
}
.device img{width:100%;border-radius:31px;display:block}
.device::after{
  content:"";position:absolute;inset:10px;border-radius:31px;pointer-events:none;
  background:linear-gradient(118deg,rgba(255,255,255,.18),rgba(255,255,255,0) 44%)
}
.device:hover{transform:translateY(-6px);transition:transform .6s var(--spring)}
.screens .cap{margin-top:18px;text-align:center;font-size:13.5px;color:var(--secondary)}
.screens .cap b{color:var(--ink);display:block;font-size:15px;margin-bottom:4px}

/* 规格表 */
.specs{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:6px 24px;box-shadow:var(--shadow-soft)}
.specs .row{display:flex;gap:20px;justify-content:space-between;padding:15px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.specs .row:last-child{border-bottom:0}
.specs .k{color:var(--secondary)}
.specs .v{font-weight:600;font-variant-numeric:tabular-nums;text-align:right}

/* 更新记录 */
.log{display:grid;gap:14px}
.log .entry{display:flex;gap:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px}
.log .ver{flex:0 0 auto;min-width:70px;font-weight:800;color:var(--orange);letter-spacing:.03em}
.log ul{margin:0;padding-left:20px;color:var(--secondary);font-size:14.5px}
.log li{margin:0 0 6px}

/* 页脚 */
footer .cols{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:28px;padding:10px 0 26px}
footer h4{font-size:13px;letter-spacing:.14em;color:var(--secondary);margin:0 0 12px;font-weight:700}
footer .col a{display:block;font-size:14px;padding:5px 0;color:var(--secondary)}
footer .col a:hover{color:var(--ink)}
footer .brandline{display:flex;align-items:center;gap:10px;margin-bottom:12px}
footer .brandline img{width:28px;height:28px}
footer .brandline b{font-size:16px;color:var(--ink)}
footer .legal{border-top:1px solid var(--line);padding-top:18px;display:flex;gap:14px;flex-wrap:wrap;justify-content:space-between}

@media (max-width:900px){
  footer .cols{grid-template-columns:1fr;gap:22px}
}
@media (max-width:760px){
  .screens{grid-template-columns:1fr;gap:34px}
  .screens .item:nth-child(n){transform:none}
  .device{border-radius:34px;padding:8px}
  .device img{border-radius:27px}
  .device::after{inset:8px;border-radius:27px}
  .specs{padding:2px 18px}
  .specs .row{flex-direction:column;gap:4px}
  .specs .v{text-align:left}
  .log .entry{flex-direction:column;gap:10px}
}

/* ==========================================================================
   多设备适配：平板、横屏手机、超宽屏、触摸设备
   ========================================================================== */

/* 触摸设备：放大点按区域，去掉点击时的灰块 */
@media (hover:none){
  .nav a{padding:11px 13px}
  .btn{padding:16px 25px}
  .toc a{padding:11px 12px;font-size:14px}
  .tip,.step{padding:18px 20px}
  .card{padding:22px}
}

/* 平板竖屏（768 左右）：首屏收一点高度，产品三连图与卡片收紧间距 */
@media (min-width:641px) and (max-width:900px){
  .hero{padding:58px 0 44px}
  .screens{gap:16px}
  .screens .item:nth-child(2){transform:translateY(14px)}
  .screens .item:nth-child(3){transform:translateY(28px)}
  .policy-layout{gap:24px}
  .toc{position:static}
  /* 平板竖屏时目录排成两列，避免一整屏都是目录 */
  .toc ol{columns:2;column-gap:26px}
  .grid{gap:16px}
}

/* 平板横屏与小型笔记本（1024 左右）：错落幅度收小，避免三台设备错位过多 */
@media (min-width:901px) and (max-width:1180px){
  .screens .item:nth-child(2){transform:translateY(18px)}
  .screens .item:nth-child(3){transform:translateY(36px)}
}

/* 横屏手机：竖向空间紧张，压缩首屏与区块留白 */
@media (max-height:540px) and (orientation:landscape){
  /* 首屏改成左右分栏：箱子在左，标题与按钮在右，保证主按钮在折线以上 */
  .hero{
    display:grid;grid-template-columns:190px minmax(0,1fr);column-gap:28px;
    align-items:center;text-align:left;padding:26px 0 30px;max-width:1000px
  }
  .crate-parallax{grid-column:1;grid-row:1 / span 4;margin:0}
  .crate-wrap{width:150px}
  .wordmark{grid-column:2;grid-row:1;font-size:clamp(26px,4.4vw,38px)}
  .hero .rule{grid-column:2;grid-row:2;margin:12px 0 14px}
  .hero .lead{grid-column:2;grid-row:3;margin:0;max-width:none;font-size:14.5px}
  .hero .cta{grid-column:2;grid-row:4;justify-content:flex-start;margin-top:18px}
  .badges{grid-column:2;grid-row:5;justify-content:flex-start;margin-top:14px}
  .hero .bloom{top:40%}
  section{padding:34px 0}
  section + section{padding-top:14px}
  .topbar .inner{height:56px}
}

/* 超宽屏：内容区适当放大，避免大片留白 */
@media (min-width:1440px){
  :root{--maxw:1180px}
  .hero{padding:92px 0 70px}
  .crate-wrap{width:196px}
  .hero .lead{font-size:18px}
}

/* 打印：更紧凑一些 */
@media print{
  .progress,.curtain,body::after{display:none!important}
  footer{padding-bottom:0}
}