:root{
  --bg:#FFF9F4; --bg2:#F4F7FD; --card:#FFFFFF; --ink:#1D1D1F; --sub:#6E6E73;
  --line:#ECECF0; --warm:#FF7A45; --warm2:#FF5E8A; --blue:#4C8DFF; --green:#34C759;
  --shadow:0 8px 24px rgba(31,31,40,.06); --shadow-h:0 16px 38px rgba(31,31,40,.11);
  --radius:16px;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Text","SF Pro Display","PingFang SC","Hiragino Sans","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.55;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
footer a{color:var(--warm2);text-decoration:underline;text-underline-offset:3px}
.wrap{max-width:1040px;margin:0 auto;padding:0 22px}
section{padding:38px 0}
.alt{background:linear-gradient(180deg,var(--bg2),#FFFFFF)}
h2.sec{font-size:25px;font-weight:700;letter-spacing:-.02em;margin-bottom:5px}
.sec-sub{color:var(--sub);font-size:14.5px;margin-bottom:18px;max-width:680px}

/* 滚动渐显 */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s cubic-bezier(.2,.7,.2,1),transform .5s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* NAV */
nav{position:sticky;top:0;z-index:50;backdrop-filter:saturate(180%) blur(16px);
  background:rgba(255,249,244,.82);border-bottom:1px solid var(--line)}
.nav-in{max-width:1040px;margin:0 auto;padding:10px 22px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:15px;white-space:nowrap}
.logo{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--warm),var(--warm2));
  display:grid;place-items:center;color:#fff;font-size:13px;box-shadow:0 5px 14px rgba(255,94,138,.35)}
.nav-mid{display:flex;align-items:center;gap:18px;flex:1;justify-content:center}
.nav-links{display:flex;gap:16px;font-size:13.5px;color:var(--sub);flex-wrap:wrap}
.nav-links a:hover{color:var(--warm)}
.nav-links a[href^="http"]{color:var(--warm2)}
.langs{display:flex;gap:5px;flex-wrap:wrap;font-size:12px}
.langs a{padding:4px 8px;border-radius:999px;border:1px solid var(--line);color:var(--sub);background:#fff;line-height:1}
.langs a:hover{color:var(--warm);border-color:var(--warm)}
.langs a.cur{color:#fff;background:linear-gradient(120deg,var(--warm),var(--warm2));border-color:transparent;font-weight:700}
.nav-cta{padding:6px 14px;border-radius:999px;background:var(--ink);color:#fff;font-size:13px;font-weight:600;white-space:nowrap}
@media(max-width:980px){
  .nav-in{flex-wrap:wrap;row-gap:6px}
  .nav-mid{order:3;width:100%;justify-content:flex-start;overflow-x:auto;white-space:nowrap;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .nav-mid::-webkit-scrollbar{display:none}
  .nav-links{gap:14px;font-size:12.5px}
  .langs{margin-left:auto}
}

/* HERO */
.hero{padding:52px 0 34px;background:
  radial-gradient(1000px 400px at 82% -12%,rgba(255,122,69,.15),transparent 60%),
  radial-gradient(760px 360px at 8% 8%,rgba(76,141,255,.09),transparent 55%),
  linear-gradient(180deg,var(--bg),#FFFFFF)}
.pill{display:inline-flex;align-items:center;gap:7px;background:#fff;border:1px solid var(--line);
  padding:5px 12px;border-radius:999px;font-size:12px;color:var(--sub);box-shadow:var(--shadow);margin-bottom:14px}
.pill b{color:var(--warm)}
h1{font-size:42px;line-height:1.12;font-weight:800;letter-spacing:-.03em;max-width:820px}
h1 .grad{background:linear-gradient(120deg,var(--warm),var(--warm2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:16.5px;color:var(--sub);max-width:680px;margin:14px 0 16px}
.stats{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:14px}
.stat{background:#fff;border:1px solid var(--line);border-radius:13px;padding:9px 14px;box-shadow:var(--shadow)}
.stat b{font-size:19px;font-weight:800;background:linear-gradient(120deg,var(--warm),var(--warm2));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{display:block;font-size:11.5px;color:var(--sub);margin-top:1px}
.audience{font-size:13.5px;color:var(--sub);margin-bottom:18px}
.audience b{color:var(--ink)}
.hero-actions{display:flex;gap:11px;flex-wrap:wrap}
.btn{padding:11px 20px;border-radius:13px;font-weight:600;font-size:14.5px;transition:.2s}
.btn-primary{background:linear-gradient(120deg,var(--warm),var(--warm2));color:#fff;box-shadow:0 9px 22px rgba(255,94,138,.30)}
.btn-primary:hover{transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:var(--shadow)}

/* INPUT → OUTPUT */
.io{display:grid;grid-template-columns:1fr auto 1fr;gap:14px;align-items:stretch;margin-top:4px}
@media(max-width:820px){.io{grid-template-columns:1fr;}.io .arrow{transform:rotate(90deg)}}
.io-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.io-card .tag{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--sub);font-weight:700;margin-bottom:9px}
.io-in .quote{font-size:16.5px;font-weight:600;line-height:1.5}
.io-in .fields{margin-top:12px;display:flex;flex-wrap:wrap;gap:6px}
.io-in .fields span{background:#F3F6FC;color:var(--sub);font-size:11.5px;padding:4px 10px;border-radius:999px}
.arrow{display:grid;place-items:center;font-size:24px;color:var(--warm);font-weight:800;min-width:32px}
.io-out ul{list-style:none;display:grid;gap:7px}
.io-out li{display:flex;gap:8px;font-size:13.5px;align-items:flex-start}
.io-out li::before{content:"✓";color:var(--green);font-weight:800;flex:0 0 auto}

/* 产出区 */
.grid{display:grid;gap:11px}
.g4{grid-template-columns:repeat(4,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
@media(max-width:880px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.g3,.g4{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:15px;box-shadow:var(--shadow);transition:.2s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-h)}
.card .ico{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;font-size:17px;margin-bottom:8px;
  background:linear-gradient(135deg,rgba(255,122,69,.15),rgba(255,94,138,.15))}
.card h3{font-size:15px;font-weight:700;margin-bottom:3px}
.card p{color:var(--sub);font-size:12.8px;line-height:1.48}
.card .eg{margin-top:7px;font-size:11.5px;color:var(--warm);background:#FFF1EA;border-radius:8px;padding:5px 8px;display:block}

/* FLOW */
.flow{display:grid;grid-template-columns:repeat(6,1fr);gap:9px}
@media(max-width:900px){.flow{grid-template-columns:repeat(3,1fr)}}
@media(max-width:520px){.flow{grid-template-columns:repeat(2,1fr)}}
.fstep{background:#fff;border:1px solid var(--line);border-radius:13px;padding:13px 11px;box-shadow:var(--shadow)}
.fstep .n{font-size:10.5px;font-weight:800;color:var(--warm);letter-spacing:.05em}
.fstep h4{font-size:13.5px;margin:4px 0 3px}
.fstep p{font-size:12px;color:var(--sub);line-height:1.42}

/* PROOF — before/after */
.ba{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:700px){.ba{grid-template-columns:1fr}}
.ba .col{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.ba .col .head{padding:11px 16px;font-weight:700;font-size:13.5px;border-bottom:1px solid var(--line)}
.ba .col.old .head{background:#F7F8FA;color:var(--sub)}
.ba .col.new .head{background:linear-gradient(120deg,var(--warm),var(--warm2));color:#fff}
.ba .row{padding:11px 16px;font-size:13px;border-bottom:1px solid var(--line);line-height:1.5}
.ba .row:last-child{border-bottom:none}
.ba .row b{display:block;font-size:12px;color:var(--sub);font-weight:600;margin-bottom:2px}

/* COMPARE */
.cmp{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:6px}
@media(max-width:700px){.cmp{grid-template-columns:1fr}}
.cmp .col{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.cmp .col .head{padding:12px 16px;font-weight:700;font-size:13.5px;border-bottom:1px solid var(--line)}
.cmp .col.old .head{background:#F7F8FA;color:var(--sub)}
.cmp .col.new .head{background:linear-gradient(120deg,var(--warm),var(--warm2));color:#fff}
.cmp .row{padding:12px 16px;font-size:13px;border-bottom:1px solid var(--line);line-height:1.5}
.cmp .col.old .row{color:var(--sub)}
.cmp .col.new .row{color:var(--ink)}
.cmp .row:last-child{border-bottom:none}
.cmp .row b{color:var(--warm)}

/* MOCK */
.mock{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;margin-top:16px}
.mock .top{background:linear-gradient(135deg,#4C8DFF,#6F6BFF);color:#fff;padding:12px 18px;display:flex;justify-content:space-between;align-items:center;gap:8px}
.mock .top b{font-size:14px} .mock .top span{font-size:11px;opacity:.85}
.mock .body{padding:16px;display:grid;gap:9px}
.mock .row{display:flex;gap:12px;font-size:13px}
.mock .row .k{flex:0 0 80px;color:var(--sub)} .mock .row .v{color:var(--ink)}
.mock .pill2{display:inline-block;background:#FFF1EA;color:var(--warm);font-size:11px;padding:2px 8px;border-radius:999px;margin:2px}

/* DATA */
.dt{display:grid;gap:8px;margin-top:16px}
.drow{display:grid;grid-template-columns:180px 70px 1fr;gap:11px;align-items:center;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:10px 15px;font-size:13px}
.drow .st{font-weight:700;text-align:center;border-radius:8px;padding:4px 0;font-size:11.5px}
.st.ok{background:#E7F9EC;color:var(--green)} .st.warn{background:#FFF4E0;color:#E08A00} .st.no{background:#FDECEC;color:#E5484D}
@media(max-width:620px){.drow{grid-template-columns:1fr;gap:4px}.drow .st{justify-self:start;padding:4px 12px}}

/* COVERAGE */
.cov{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
@media(max-width:820px){.cov{grid-template-columns:1fr}}
.cov h3{font-size:14.5px;font-weight:700;margin-bottom:10px;color:var(--ink)}
.scn{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.scn .item{display:flex;gap:8px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 11px;box-shadow:var(--shadow)}
.scn .item .dot{flex:0 0 auto;width:26px;height:26px;border-radius:9px;background:linear-gradient(135deg,var(--warm),var(--warm2));display:grid;place-items:center;color:#fff;font-size:13px}
.scn .item b{display:block;font-size:12.5px;line-height:1.3}
.scn .item span{color:var(--sub);font-size:11.5px;line-height:1.32}
.tbl{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);font-size:12.5px}
.tbl th,.tbl td{padding:8px 12px;text-align:left;border-bottom:1px solid var(--line)}
.tbl th{background:#FAFBFF;font-weight:700;color:var(--sub);font-size:11.5px}
.tbl tr:last-child td{border-bottom:none}
.chip2{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600;background:#FFF1EA;color:var(--warm)}

/* FAQ */
.faq details{background:#fff;border:1px solid var(--line);border-radius:13px;padding:2px 16px;margin-bottom:8px;box-shadow:var(--shadow)}
.faq summary{font-weight:600;font-size:14.5px;padding:12px 0;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:10px}
.faq summary::after{content:"+";font-size:19px;color:var(--warm);font-weight:400;flex:0 0 auto}
.faq details[open] summary::after{content:"−"}
.faq .ans{color:var(--sub);font-size:13.5px;padding:0 0 13px;line-height:1.55}
.faq .ans code{background:#F3F6FC;padding:1px 5px;border-radius:5px;font-size:12px;word-break:break-all}

.band{background:linear-gradient(120deg,var(--warm),var(--warm2));color:#fff;border-radius:22px;padding:34px 30px;text-align:center;box-shadow:0 18px 44px rgba(255,94,138,.26)}
.band h2{font-size:25px;font-weight:800;letter-spacing:-.02em;margin-bottom:8px}
.band p{font-size:14.5px;opacity:.95;margin-bottom:16px}
.band .btn-w{background:#fff;color:var(--warm);padding:11px 22px;border-radius:13px;font-weight:700;font-size:14.5px;display:inline-block;margin:4px}
.band .btn-o{border:1.5px solid rgba(255,255,255,.7);color:#fff;padding:11px 22px;border-radius:13px;font-weight:700;font-size:14.5px;display:inline-block;margin:4px}

footer{background:var(--ink);color:#cfcfd4;padding:30px 0;font-size:13px;margin-top:8px}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px}
footer b{color:#fff}
.progress{position:fixed;top:0;left:0;height:3px;background:linear-gradient(90deg,var(--warm),var(--warm2));width:0;z-index:60}
.totop{position:fixed;right:18px;bottom:18px;width:40px;height:40px;border-radius:50%;background:var(--ink);color:#fff;
  display:grid;place-items:center;font-size:17px;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.3s;z-index:60}
.totop.show{opacity:1;pointer-events:auto}

/* 安装方式 */
.cmdbox{background:#0F1115;border:1px solid #23262E;border-radius:14px;padding:14px 16px;
  box-shadow:var(--shadow);max-width:680px}
.cmdbox .cmt{display:block;color:#8B93A7;font-size:12px;margin-bottom:9px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.cmdraw{display:flex;gap:9px;align-items:stretch}
.cmdtext{flex:1;min-width:0;background:#16181F;color:#E8E8EC;border:1px solid #2A2E37;border-radius:10px;
  padding:10px 12px;font-size:12.5px;line-height:1.5;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  word-break:break-all;-webkit-user-select:text;user-select:text}
.cmdtext:focus{outline:2px solid var(--warm);outline-offset:1px}
.copybar{display:flex;flex-wrap:wrap;gap:11px;align-items:center;margin-top:11px}
.copybtn{border:0;cursor:pointer;font-family:var(--font);font-weight:700;font-size:14px;color:#fff;white-space:nowrap;
  background:linear-gradient(120deg,var(--warm),var(--warm2));padding:11px 20px;border-radius:12px;
  box-shadow:0 8px 18px rgba(255,94,138,.26);min-height:44px;transition:.18s}
.copybtn:active{transform:scale(.97)}
.copybtn.done{background:var(--green);box-shadow:0 8px 18px rgba(52,199,89,.26)}
.copyhint{font-size:12px;color:var(--sub)}
.copyhint a{color:var(--warm2);font-weight:600}
.inst{display:grid;grid-template-columns:repeat(3,1fr);gap:11px;margin-top:16px}
.icard{background:#fff;border:1px solid var(--line);border-radius:15px;padding:14px;box-shadow:var(--shadow);
  display:flex;flex-direction:column;gap:6px}
.icard .ih{display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.icard .ih b{font-size:14px}
.icard .tagx{font-size:10px;font-weight:700;padding:2px 8px;border-radius:999px;background:#F0F3F9;color:var(--sub);white-space:nowrap}
.icard .tagx.live{background:#E7F9EC;color:var(--green)}
.icard p{font-size:12.3px;color:var(--sub);line-height:1.5;flex:1}
.icard .act{font-size:12.3px;font-weight:700;color:var(--warm2)}
.icard code{background:#F3F6FC;padding:1px 5px;border-radius:5px;font-size:11.5px;word-break:break-all}
.ifoot{margin-top:14px;background:#FFF7F1;border:1px solid #FFE2D2;border-radius:13px;padding:12px 15px;
  font-size:12.5px;color:#8A5A3B;line-height:1.6}
.ifoot b{color:#7A4A2B}

/* 移动端专项 */
@media(max-width:1000px){.inst{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){
  .wrap{padding:0 16px}
  .nav-in{padding:9px 16px;row-gap:6px}
  section{padding:30px 0}
  .hero{padding:40px 0 28px}
  h1{font-size:28px}
  .hero p.lead{font-size:15px;margin:12px 0}
  h2.sec{font-size:21px}
  .sec-sub{font-size:13.5px;margin-bottom:14px}
  .stat{padding:7px 12px}
  .stat b{font-size:16px}
  .grid{gap:9px}
  .card{padding:13px}
  .io-card{padding:15px}
  .io-in .quote{font-size:15.5px}
  .fstep{padding:11px 10px}
  .band{padding:26px 18px;border-radius:18px}
  .band h2{font-size:20px}
  .band .btn-w,.band .btn-o{display:block;margin:6px 0;text-align:center}
  .tbl{font-size:11.5px}
  .tbl th,.tbl td{padding:7px 9px}
  .mock .top{flex-direction:column;align-items:flex-start;gap:2px}
  .mock .body{padding:13px}
  .faq summary{font-size:14px}
  .inst{grid-template-columns:1fr}
  .cmdraw{flex-direction:column}
  .cmdtext{width:100%}
  .copybtn{width:100%}
  .cmdbox{padding:13px}
  footer .wrap{flex-direction:column}
  footer{padding-bottom:calc(26px + env(safe-area-inset-bottom))}
  .totop{right:13px;bottom:calc(13px + env(safe-area-inset-bottom))}
}
@media(hover:none){
  .card:hover{transform:none;box-shadow:var(--shadow)}
  .btn-primary:hover{transform:none}
}