*{box-sizing:border-box}
:root{--paper:#fbf6ec;--grid:#e6e0d2;--ink:#2b2622;--sub:#6b625a;--red:#d9443f;--blue:#3a6fd0;--yellow:#f2b632;--green:#4c9a52;--purple:#8a5cc2;--brown:#8a5a3a;--card:#fffdf8}
html{-webkit-text-size-adjust:100%}
body{margin:0;color:var(--ink);font-family:"Zen Maru Gothic","Hiragino Maru Gothic ProN","Hiragino Sans","PingFang SC","PingFang TC","Apple SD Gothic Neo","Noto Sans",sans-serif;line-height:1.85;
background-color:var(--paper);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:24px 24px}
p,li,h1,h2,h3{word-break:auto-phrase;overflow-wrap:anywhere}
a{color:var(--blue)}
img{max-width:100%;height:auto}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
header{background:rgba(251,246,236,.92);border-bottom:2px solid var(--red);position:sticky;top:0;z-index:10;backdrop-filter:blur(6px)}
.hbar{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:900;color:var(--ink);text-decoration:none}
.brand img{border-radius:9px}
.hnav{display:flex;gap:14px;flex-wrap:wrap;font-size:.92rem}
.hnav a{color:var(--sub);text-decoration:none;font-weight:700}
.hnav a[aria-current]{color:var(--red)}
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center;padding-top:48px;padding-bottom:32px}
.appname{display:flex;align-items:center;gap:12px;font-weight:900;font-size:1.15rem;margin:0}
.appname img{border-radius:15px;box-shadow:0 2px 0 rgba(0,0,0,.08)}
h1{font-size:clamp(1.8rem,5vw,2.8rem);line-height:1.35;margin:.5em 0 .4em;font-weight:900}
h1 em{font-style:normal;color:var(--red);background:linear-gradient(transparent 62%,rgba(242,182,50,.45) 62%)}
.lead{font-size:1.05rem;color:var(--sub);margin:0 0 1.2em}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:.75em 1.4em;border-radius:999px;background:var(--red);color:#fff;font-weight:900;text-decoration:none;border:2px solid var(--red)}
.btn.ghost{background:var(--card);color:var(--red)}
.note{font-size:.85rem;color:var(--sub);margin-top:1em}
.hero-art img{display:block;margin:0 auto;border-radius:22%;box-shadow:0 10px 30px rgba(60,40,20,.15);transform:rotate(-2deg)}
.sec{padding-top:28px;padding-bottom:28px}
h2{font-size:1.45rem;font-weight:900;margin:0 0 .8em;display:inline-block;border-bottom:3px solid var(--red);line-height:1.5}
.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feat{background:var(--card);border:2px solid var(--ink);border-radius:16px;padding:18px 18px 14px;position:relative}
.feat h3{margin:0 0 .3em;font-size:1.08rem;font-weight:900}
.feat p{margin:0;color:var(--sub);font-size:.95rem}
.feat::before{content:"";position:absolute;left:18px;top:-7px;width:44px;height:12px;border-radius:6px}
.c1::before{background:var(--red)}.c2::before{background:var(--yellow)}.c3::before{background:var(--blue)}.c4::before{background:var(--green)}.c5::before{background:var(--purple)}.c6::before{background:var(--brown)}
.steps{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.steps li{display:flex;gap:14px;align-items:flex-start;background:var(--card);border:2px dashed var(--sub);border-radius:14px;padding:14px 16px}
.num{flex:none;width:34px;height:34px;border-radius:50%;background:var(--red);color:#fff;font-weight:900;display:flex;align-items:center;justify-content:center}
.box{background:var(--card);border:2px solid var(--ink);border-radius:16px;padding:20px}
.box p{margin:0}
.doc{max-width:820px;padding-top:36px;padding-bottom:48px}
.doc-head h1{margin:0;font-size:clamp(1.6rem,4.5vw,2.2rem)}
.meta{color:var(--sub);font-size:.9rem;margin:.2em 0 1.4em}
.lede{background:var(--card);border:2px solid var(--ink);border-radius:14px;padding:16px 18px;margin-bottom:1.6em}
.doc section{background:var(--card);border-radius:14px;padding:18px 18px 10px;margin-bottom:14px;border:1px solid var(--grid)}
.doc h2{font-size:1.15rem}
.doc ul{padding-left:1.3em;margin:.4em 0}
footer{border-top:2px solid var(--red);background:rgba(251,246,236,.95);margin-top:32px}
.foot{padding-top:20px;padding-bottom:28px;font-size:.9rem;color:var(--sub)}
.foot nav{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:10px}
.foot nav a{color:var(--sub)}
.lang select{font:inherit;padding:.2em .4em;border-radius:8px;border:1px solid var(--sub);background:var(--card);color:var(--ink)}
.copy{margin:.8em 0 0}
@media (max-width:820px){.hero{grid-template-columns:1fr;padding-top:28px}.hero-art{order:-1}.hero-art img{width:220px}.feats{grid-template-columns:1fr}}