:root{
  --paper:#fbf7ec; --paper-2:#f4eddd; --ink:#20251d; --ink-2:#454b3f;
  --muted:#6d7464; --line:rgba(32,37,29,.14); --line-soft:rgba(32,37,29,.08);
  --green:#4d7a45; --green-2:#7ba36a;
  --c1:#d9584a; --c2:#e08a3a; --c3:#d8b03c; --c4:#5f9a52;
  --c5:#4a9490; --c6:#4a79b0; --c7:#8668a8;
  --serif:"Noto Serif CJK SC","Source Han Serif SC","Songti SC",STSong,Georgia,serif;
  --sans:"Noto Sans CJK SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --pad:clamp(20px,4.4vw,64px); --max:1120px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scrollbar-color:#c9c2ae #fbf7ec;scrollbar-width:thin}
::-webkit-scrollbar{width:11px}::-webkit-scrollbar-track{background:#fbf7ec}
::-webkit-scrollbar-thumb{background:#d2cab6;border:3px solid #fbf7ec;border-radius:6px}
body{background:var(--paper);color:var(--ink);font:16px/1.85 var(--sans);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:99;pointer-events:none;opacity:.022;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/></filter><rect width='180' height='180' filter='url(%23n)'/></svg>")}
::selection{background:rgba(77,122,69,.22)}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.mono{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase}
.progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--green);z-index:70;opacity:.7}

header.site{position:fixed;top:0;left:0;right:0;z-index:60;
  background:linear-gradient(rgba(251,247,236,.95),rgba(251,247,236,.8));
  border-bottom:1px solid transparent;transition:border-color .3s,background .3s;backdrop-filter:blur(8px)}
header.site.solid{border-bottom-color:var(--line-soft);background:rgba(251,247,236,.97)}
.top{max-width:var(--max);margin:0 auto;padding:calc(14px + env(safe-area-inset-top)) var(--pad) 14px;
  display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{font-family:var(--serif);font-size:18px;letter-spacing:.02em;display:flex;align-items:baseline;gap:10px}
.brand i{font-style:normal;font-family:var(--mono);font-size:9px;letter-spacing:.18em;color:var(--green)}
nav{display:flex;gap:22px}
nav a{font-size:12.5px;color:var(--muted);transition:color .2s}
nav a:hover{color:var(--ink)}
@media(max-width:620px){nav{gap:14px}nav a{font-size:12px}.brand i{display:none}}

/* 首屏 */
.hero{padding:calc(80px + env(safe-area-inset-top)) var(--pad) 24px;position:relative;overflow:hidden}
.hero-in{position:relative;z-index:2;text-align:center}
.kicker{font-family:var(--mono);font-size:10px;letter-spacing:.22em;color:var(--green);display:inline-flex;align-items:center;gap:12px}
.kicker::before,.kicker::after{content:"";width:26px;height:1px;background:var(--green);opacity:.5}
h1{font-family:var(--serif);font-weight:500;font-size:clamp(34px,5.2vw,56px);line-height:1.2;letter-spacing:.01em;margin-top:14px;text-wrap:balance}
h1 em{font-style:normal;color:var(--green)}
.lede{max-width:600px;margin:18px auto 0;font-size:clamp(14.5px,1.5vw,16.5px);line-height:1.95;color:var(--ink-2)}
.lede b{color:var(--ink);font-weight:500}

/* 藤与葫芦 */
.vine{position:relative;margin-top:22px;padding:0 0 8px}
.vine svg.line{position:absolute;left:0;right:0;top:24px;width:100%;height:96px;overflow:visible;pointer-events:none}
.vine svg.line path.vine-path{stroke-dasharray:1;stroke-dashoffset:0;animation:draw 2.4s ease-out both}
@keyframes draw{from{stroke-dashoffset:1}to{stroke-dashoffset:0}}
.vine svg.line path.vine-path{pathLength:1}
.gourds{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;position:relative;z-index:2}
.g{position:relative;display:flex;flex-direction:column;align-items:center;transform-origin:50% 0}
.avatar{position:relative;display:flex;flex-direction:column;align-items:center;transform-origin:50% 0}
.g .stem{width:2px;height:var(--h,30px);background:linear-gradient(var(--green),color-mix(in srgb,var(--c) 55%,var(--green)));border-radius:2px}
.g .leaf{width:20px;height:11px;margin:-2px 0 0 9px;background:var(--green-2);border-radius:100% 0 100% 0;transform:rotate(-18deg);opacity:.85}
.g svg.body{width:clamp(54px,7vw,80px);height:auto;margin-top:-3px;filter:drop-shadow(0 10px 14px rgba(32,37,29,.14));transition:transform .35s cubic-bezier(.2,.8,.2,1)}
.g:hover svg.body{transform:translateY(-6px) scale(1.04)}
.g .lbl{margin-top:6px;font-family:var(--mono);font-size:clamp(8px,1vw,10px);letter-spacing:.09em;color:var(--ink-2)}
.g .zh{font-family:var(--sans);font-size:10px;color:var(--muted);letter-spacing:.06em}
.g:hover .lbl{color:var(--c)}
/* 各自的动 */
.g-1 .avatar{animation:dive 6.5s ease-in-out infinite}
.g-2 .avatar{animation:walk 5s ease-in-out infinite}
.g-3 .avatar{animation:hop 3.4s cubic-bezier(.3,.7,.3,1) infinite}
.g-4 .avatar{animation:breathe 6s ease-in-out infinite}
.g-5 .avatar{animation:pulse 4.4s ease-in-out infinite}
.g-6 .avatar{animation:lean 7s ease-in-out infinite}
.g-7 .avatar{animation:sway 6.2s ease-in-out infinite}
@keyframes dive{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(4px) rotate(-2.5deg)}}
@keyframes walk{0%,100%{transform:rotate(-2.5deg)}50%{transform:rotate(2.5deg)}}
@keyframes hop{0%,68%,100%{transform:translateY(0)}74%{transform:translateY(-7px)}80%{transform:translateY(0)}86%{transform:translateY(-3px)}92%{transform:translateY(0)}}
@keyframes breathe{0%,100%{transform:scale(1)}50%{transform:scale(1.035)}}
@keyframes pulse{0%,100%{transform:scale(1)}45%{transform:scale(1.03)}55%{transform:scale(1.03)}}
@keyframes lean{0%,100%{transform:rotate(-2deg) translateX(-2px)}50%{transform:rotate(2deg) translateX(2px)}}
@keyframes sway{0%,100%{transform:rotate(-3deg)}50%{transform:rotate(3deg)}}
/* 小配件 */
.spark{position:absolute;right:-2px;top:34%;width:4px;height:4px;border-radius:50%;background:var(--c);opacity:0}
.g-3 .spark{animation:spark 3.4s ease-out infinite}
@keyframes spark{0%,60%{opacity:0;transform:translate(0,0) scale(.6)}70%{opacity:.9;transform:translate(6px,-6px) scale(1)}100%{opacity:0;transform:translate(8px,-14px) scale(.4)}}
.orbit{position:absolute;inset:0;animation:orbit 9s linear infinite;pointer-events:none}
.orbit i{position:absolute;left:50%;top:0;width:4px;height:4px;margin-left:-2px;border-radius:50%;background:var(--c);opacity:.7}
@keyframes orbit{to{transform:rotate(360deg)}}
.g-5 .ring{position:absolute;left:50%;top:56%;width:52%;height:52%;margin:-26% 0 0 -26%;border:1px solid var(--c);border-radius:50%;opacity:0;animation:ring 4.4s ease-out infinite}
@keyframes ring{0%{opacity:.35;transform:scale(.55)}70%{opacity:0;transform:scale(1.15)}100%{opacity:0}}
.g-6 .scan{position:absolute;left:10%;right:10%;top:0;height:2px;background:linear-gradient(90deg,transparent,var(--c),transparent);opacity:0;animation:scan 7s ease-in-out infinite}
@keyframes scan{0%,55%{opacity:0;top:30%}65%{opacity:.8;top:30%}80%{opacity:0;top:66%}100%{opacity:0;top:66%}}
.g-7 .tick{position:absolute;right:0;bottom:24%;width:1px;height:10px;background:var(--c);opacity:0;animation:tick 6.2s ease-in-out infinite}
@keyframes tick{0%,40%{opacity:0;transform:translateY(4px)}55%{opacity:.8;transform:translateY(0)}80%,100%{opacity:0;transform:translateY(-6px)}}
@media(max-width:820px){
  .gourds{grid-template-columns:repeat(8,1fr);gap:16px 0}
  .g .stem{height:16px}
  .g .zh{display:none}
  .g{grid-column:span 2}
  .g:nth-child(5){grid-column:2/4}.g:nth-child(6){grid-column:4/6}.g:nth-child(7){grid-column:6/8}
  .vine svg.line{display:none}
}
@media(max-width:520px){
  .orbit,.ring,.scan,.tick,.spark{display:none}
  .g svg.body{width:48px}.g .lbl{font-size:8.5px}.g .zh{font-size:8.5px}
  .hero{padding-top:calc(76px + env(safe-area-inset-top))}
}
.hero-note{margin-top:16px;font-family:var(--mono);font-size:9.5px;letter-spacing:.13em;color:var(--muted);text-align:center}


/* 结构：四类东西 + 三层 */
.faces{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:18px;border-top:1px solid var(--line-soft)}
.face{padding:16px 18px 18px 0;border-bottom:1px solid var(--line-soft)}
.face .dim{font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;color:var(--c,var(--green))}
.face .app{font-family:var(--serif);font-size:19px;font-weight:500;margin-top:6px}
.face .q{font-size:12.5px;color:var(--muted);margin-top:3px;line-height:1.6}
.layers{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
.layer{padding:12px 14px;border:1px solid var(--line-soft);border-radius:5px;background:rgba(255,255,255,.34)}
.layer .dim{font-family:var(--mono);font-size:9px;letter-spacing:.14em;color:var(--muted)}
.layer .app{font-family:var(--serif);font-size:16px;font-weight:500;margin-top:4px}
.layer .q{font-size:12px;color:var(--muted);margin-top:2px}
@media(max-width:820px){.faces{grid-template-columns:repeat(2,1fr)}.face{padding-right:14px}.layers{grid-template-columns:1fr}}
/* 双机首屏 */
.shot-pair{display:flex;gap:clamp(14px,2.4vw,28px);justify-content:center;align-items:flex-start;flex-wrap:wrap;width:100%}
.shot-pair .cell{display:flex;flex-direction:column;align-items:center;gap:10px;flex:1 1 300px;max-width:372px}
.figure .shot-pair .frame{max-width:100%;width:100%;padding:8px}
.shot-pair .cap{margin-top:auto}
.shot-pair .cap{font-family:var(--mono);font-size:9px;letter-spacing:.09em;color:var(--muted);text-align:center}

/* 首页索引 */
.sect{padding:30px var(--pad) 0;border-top:1px solid var(--line-soft);margin-top:24px}
.sec-head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}
.sec-head .n{font-family:var(--mono);font-size:10px;color:var(--green);letter-spacing:.16em}
.sec-head h2{font-family:var(--serif);font-weight:500;font-size:clamp(20px,2.4vw,25px)}
.sec-head p{margin-left:auto;font-size:12px;color:var(--muted)}
.list{margin-top:10px}
.row{display:grid;grid-template-columns:26px 1fr auto;gap:16px;align-items:baseline;
  padding:11px 0;border-bottom:1px solid var(--line-soft);transition:padding .25s ease,background .25s}
.row:hover{padding-left:8px;background:linear-gradient(90deg,color-mix(in srgb,var(--c) 6%,transparent),transparent 70%)}
.row .dot{width:7px;height:7px;border-radius:50%;background:var(--c);align-self:start;margin-top:12px}
.row .nm{font-family:var(--serif);font-size:20px;font-weight:500;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.row .nm span{font-family:var(--sans);font-size:12px;color:var(--muted);letter-spacing:.08em}
.row p{font-size:13px;color:var(--ink-2);opacity:.82;margin-top:3px;line-height:1.7}
.row .go{font-family:var(--mono);font-size:10px;letter-spacing:.1em;color:var(--c);white-space:nowrap}
@media(max-width:560px){.row{grid-template-columns:18px 1fr}.row .go{grid-column:2;font-size:9.5px}.row .nm{font-size:20px}}

/* 子页 */
.sub{padding:calc(76px + env(safe-area-inset-top)) var(--pad) 16px}
.crumb{font-family:var(--mono);font-size:10px;letter-spacing:.13em;color:var(--muted);display:flex;gap:9px;align-items:center}
.crumb a{color:var(--muted);border-bottom:1px solid transparent}
.crumb a:hover{color:var(--ink);border-bottom-color:var(--line)}
.sub-head{display:grid;grid-template-columns:88px 1fr;gap:clamp(16px,3vw,30px);align-items:center;margin-top:16px}
.sub-head .big-avatar{position:relative;display:flex;justify-content:center}
.sub-head .big-avatar svg{width:82px;height:auto;filter:drop-shadow(0 14px 18px rgba(32,37,29,.16))}
.sub-head h1{font-size:clamp(34px,5vw,50px);margin:0;line-height:1.1}
.sub-head h1 .zh{font-size:.3em;color:var(--muted);font-family:var(--sans);letter-spacing:.12em;margin-left:12px;vertical-align:middle}
.sub-head .trait{font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--muted);margin-top:8px;display:flex;align-items:center;gap:8px}
.sub-head .trait::before{content:"";width:14px;height:2px;background:var(--c)}
.sub .lead{margin-top:12px;max-width:660px;font-size:clamp(15px,1.6vw,17px);line-height:1.9;color:var(--ink-2)}
.sub .lead b{color:var(--ink);font-weight:500}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.chips span{font-family:var(--mono);font-size:9px;letter-spacing:.1em;color:var(--ink-2);border:1px solid var(--line);border-radius:999px;padding:4px 9px;background:color-mix(in srgb,var(--c) 6%,transparent)}
@media(max-width:560px){.sub-head{grid-template-columns:58px 1fr;gap:14px;margin-top:12px}.sub-head .big-avatar svg{width:60px}.sub-head h1{font-size:30px}.sub-head h1 .zh{font-size:.34em;margin-left:8px}}

.figure{margin:22px 0 0;padding:20px 14px 28px;background:var(--paper-2);border-radius:6px;display:flex;flex-direction:column;align-items:center;position:relative}
.figure .frame{border-radius:18px;padding:6px;background:#fff;border:1px solid var(--line);box-shadow:0 20px 40px -28px rgba(32,37,29,.5);max-width:232px}
.figure .frame.desktop{max-width:860px;width:100%;border-radius:8px;padding:0}
.figure .frame.tall{max-width:382px}
.figure.phone-fig,.figure.tall-fig{max-width:560px;margin-left:0}
.wide-fig{padding:22px 22px 18px;align-items:flex-start;width:fit-content;max-width:100%}
.wide-fig img{max-width:420px;width:100%;height:auto;border:1px solid var(--line);border-radius:3px;background:#fffdf7}
.figure figcaption.static{position:static;margin-top:10px;font-family:var(--mono);font-size:9px;letter-spacing:.1em;color:var(--muted)}
.figure img{display:block;width:100%;height:auto;border-radius:13px}
.figure .frame.desktop img{border-radius:7px}
.block.with-fig{display:grid;grid-template-columns:minmax(0,1fr) 292px;gap:clamp(20px,3vw,34px);align-items:start}
.block.with-fig .blk-text ul{max-width:none}
@media(max-width:820px){.block.with-fig{grid-template-columns:1fr}}
.inline-fig{margin:30px 0 0;max-width:292px}
.inline-fig .frame{border-radius:16px;padding:5px;background:#fff;border:1px solid var(--line);box-shadow:0 16px 32px -26px rgba(32,37,29,.45)}
.inline-fig img{display:block;width:100%;height:auto;border-radius:12px}
.inline-fig figcaption{margin-top:7px;font-family:var(--mono);font-size:8.5px;line-height:1.55;letter-spacing:.06em;color:var(--muted)}
@media(max-width:620px){.inline-fig{max-width:180px}}
.figure figcaption{position:absolute;left:18px;bottom:12px;font-family:var(--mono);font-size:9px;letter-spacing:.1em;color:var(--muted)}

.sub-body{margin-top:32px}
.block{padding:28px 0;border-top:1px solid var(--line-soft)}
.block h2{font-family:var(--serif);font-weight:500;font-size:clamp(20px,2.5vw,25px);display:flex;align-items:baseline;gap:10px}
.block h2 .n{font-family:var(--mono);font-size:10px;color:var(--c);letter-spacing:.14em}
.block .intro{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.85;max-width:640px}
.block ul{margin-top:12px;list-style:none;max-width:720px}
.block li{padding:10px 0 10px 18px;position:relative;font-size:14px;line-height:1.85;color:var(--ink-2);border-top:1px solid var(--line-soft)}
.block li:first-child{border-top:0}
.block li::before{content:"";position:absolute;left:2px;top:19px;width:5px;height:5px;border-radius:50%;background:var(--c);opacity:.8}
.block li b{color:var(--ink);font-weight:600}
.block li code{font-family:var(--mono);font-size:12px;background:rgba(32,37,29,.05);padding:1px 5px;border-radius:3px}
.close{margin-top:24px;padding-top:22px;border-top:1px solid var(--line-soft);max-width:660px;font-family:var(--serif);font-size:clamp(17px,2vw,20px);line-height:1.85;color:var(--ink)}
.code-line{margin-top:22px;font-family:var(--mono);font-size:10px;letter-spacing:.05em;color:#8a907f}
.prevnext{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:34px;padding:20px 0}
.prevnext a{max-width:46%}
.prevnext .lab{font-family:var(--mono);font-size:9px;letter-spacing:.13em;color:var(--muted);display:block;margin-bottom:3px}
.prevnext .nm{font-family:var(--serif);font-size:18px}
.prevnext a:hover .nm{color:var(--green)}
.prevnext .next{text-align:right;margin-left:auto}

/* 界面示意 */
.ui-demo{width:100%;max-width:760px;margin:0 auto;border:1px solid rgba(32,37,29,.2);border-radius:10px;background:#fff;overflow:hidden;box-shadow:0 22px 46px -26px rgba(32,37,29,.55);font-size:11px}
.ui-demo .bar{display:flex;justify-content:space-between;align-items:center;padding:7px 10px;border-bottom:1px solid var(--line-soft);font-family:var(--mono);font-size:7.5px;letter-spacing:.12em;color:var(--muted);background:#faf7ef}
.phone-ui{max-width:244px;border-radius:24px;padding:6px}
.myh-demo{display:flex;min-height:320px}
.tabs{display:flex;gap:4px;padding:6px 8px;background:#faf7ef;border-bottom:1px solid var(--line-soft)}
.tabs span{font-family:var(--mono);font-size:6.5px;letter-spacing:.08em;color:var(--muted);border:1px solid var(--line-soft);border-radius:999px;padding:3px 7px}
.tabs span.on{color:var(--ink);border-color:var(--line);background:#fff}
.myh-demo .chat{flex:1;padding:10px 12px;display:flex;flex-direction:column;gap:7px;background:#fff}
.myh-demo .who{font-family:var(--mono);font-size:6.5px;letter-spacing:.1em;color:var(--green)}
.myh-demo .u{align-self:flex-end;background:#eef2e6;border-radius:6px 6px 2px 6px;padding:6px 8px;font-size:9px;max-width:85%;line-height:1.6}
.myh-demo .a{font-size:9px;line-height:1.65;color:var(--ink-2);max-width:90%}
.myh-demo .inp{margin-top:auto;border:1px solid var(--line);border-radius:5px;padding:6px 8px;font-size:8px;color:#9aa08f;display:flex;justify-content:space-between}
.hupo-demo{padding:18px;display:grid;grid-template-columns:1.4fr .8fr;gap:14px;background:#fff}
.hupo-demo .read{font-family:var(--serif);font-size:9px;line-height:1.95;color:var(--ink-2);position:relative}
.hupo-demo .sel{background:rgba(74,121,176,.2);border-bottom:1px solid var(--c6);padding:0 1px}
.hupo-demo .toolbar{display:inline-flex;gap:1px;background:var(--ink);border-radius:3px;padding:2px;margin-top:8px}
.hupo-demo .toolbar span{font-family:var(--mono);font-size:7px;color:#e6e9df;padding:4px 7px;border-radius:2px}
.hupo-demo .toolbar span.on{background:var(--c6);color:#fff}
.hupo-demo .vault{border-left:1px solid var(--line-soft);padding-left:12px;background:#fbf9f2}
.hupo-demo .vault h6{font-family:var(--mono);font-size:6.5px;letter-spacing:.12em;color:var(--muted);font-weight:400;margin-bottom:7px}
.hupo-demo .vn{border-left:2px solid #ddd6c2;padding:3px 0 3px 6px;margin-bottom:6px}
.hupo-demo .vn b{display:block;font-size:8px;font-weight:500}
.hupo-demo .vn span{font-family:var(--mono);font-size:6px;color:#a9ae9f}
@media(max-width:520px){.hupo-demo{grid-template-columns:1fr}.hupo-demo .vault{border-left:0;border-top:1px solid var(--line-soft);padding-left:0;padding-top:10px}}

footer{border-top:1px solid var(--line);margin-top:34px;padding:28px 0 calc(42px + env(safe-area-inset-bottom))}
.foot{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;color:var(--muted)}
html.js .reveal{opacity:1;transform:none}
html.js .reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .avatar,.spark,.orbit,.ring,.scan,.tick,.vine svg.line path.vine-path{animation:none!important}
  html.js .reveal{opacity:1;transform:none;transition:none}
}
@media(max-width:620px){
  .sub{padding-top:calc(80px + env(safe-area-inset-top))}
  .figure{padding:18px 10px 26px}
  .block{padding:24px 0}
}