/* Rimmo — 2026 · 浅色主题 */
:root{
  --bg:#f5f3ee;
  --bg-soft:#fffdfa;
  --panel:#ffffff;
  --line:rgba(24,24,22,.12);
  --line-strong:rgba(24,24,22,.20);
  --text:#151719;
  --muted:#5c6169;
  --dim:#6f747c;
  --accent:#a8630f;
  --accent-soft:rgba(168,99,15,.10);
  --live:#1f7a4d;
  --max:1120px;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Inter","Helvetica Neue",Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
::selection{background:var(--accent);color:#fff}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;gap:36px;
  max-width:var(--max);margin:0 auto;padding:18px 28px;
  transition:background .25s,border-color .25s,backdrop-filter .25s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(247,246,242,.82);backdrop-filter:blur(14px) saturate(120%);
  border-bottom-color:var(--line);
}
.brand{display:flex;align-items:center;font-weight:600;letter-spacing:-.02em;font-size:17px}
.brand .logo{height:20px;width:auto;color:var(--text);display:block}
.nav-links{display:flex;gap:26px;font-size:14px;color:var(--muted)}
.nav-links a{transition:color .2s}
.nav-links a:hover{color:var(--text)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.lang{
  background:#fff;border:1px solid var(--line);color:var(--muted);
  font:inherit;font-size:12px;letter-spacing:.06em;text-transform:uppercase;
  padding:5px 9px;border-radius:6px;cursor:pointer;transition:.2s;
}
.lang:hover{color:var(--text);border-color:var(--line-strong)}
html[data-lang="zh"] .lang-en,html[data-lang="en"] .lang-zh{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--text);color:#fff;
  padding:11px 20px;border-radius:8px;
  font-size:14px;font-weight:600;letter-spacing:-.01em;
  transition:transform .18s,box-shadow .18s,background .18s;
}
.btn:hover{background:#000;transform:translateY(-1px);box-shadow:0 8px 24px -12px rgba(0,0,0,.5)}
.btn:active{transform:translateY(0)}
.btn-sm{padding:8px 14px;font-size:13px}
.btn-lg{padding:15px 30px;font-size:16px}
.btn-ghost{
  background:#fff;color:var(--text);
  border:1px solid var(--line-strong);font-weight:500;
}
.btn-ghost:hover{background:#fff;border-color:var(--text);box-shadow:none}
.btn-block{width:100%;margin-top:22px}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:76px 0 96px;
}
.hero::before{
  content:"";position:absolute;inset:-20% -10% auto -10%;height:80vh;
  background:
    radial-gradient(55% 55% at 16% 20%, rgba(168,99,15,.10), transparent 70%),
    radial-gradient(48% 48% at 84% 6%, rgba(31,122,77,.07), transparent 70%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(24,24,22,.045) 1px,transparent 1px);
  background-size:100% 88px;opacity:.6;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 78%);
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 78%);
}
.hero-grid{
  position:relative;z-index:1;
  max-width:var(--max);margin:0 auto;padding:0 28px;
  display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);margin:0 0 22px;
}
.dot{width:6px;height:6px;border-radius:50%;background:var(--live);
  box-shadow:0 0 0 4px rgba(31,122,77,.12);animation:pulse 2.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}
@media (prefers-reduced-motion:reduce){.dot{animation:none}}

h1{
  margin:0;font-size:clamp(34px,4.6vw,56px);line-height:1.08;
  letter-spacing:-.035em;font-weight:650;text-wrap:balance;
}
h1 br{display:block}
.lede{
  margin:24px 0 0;max-width:560px;
  font-size:17px;line-height:1.7;color:var(--muted);
}
.cta-row{display:flex;gap:12px;margin:34px 0 0;flex-wrap:wrap}

/* 模块路线（hero 底部一行） */
.roadmap{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:52px;padding-top:22px;border-top:1px solid var(--line)}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:var(--muted);
  border:1px solid var(--line);border-radius:999px;
  padding:4px 10px;background:#fff;
}
.chip i{width:5px;height:5px;border-radius:50%;background:var(--dim)}
.chip-on{color:var(--accent);border-color:rgba(168,99,15,.28);background:#fffaf1}
.chip-on i{background:var(--accent)}
.roadmap-note{margin-left:2px;font-size:11.5px;color:var(--dim)}

/* ---------- demo ---------- */
.demo{
  border:1px solid var(--line);border-radius:14px;
  background:var(--panel);
  box-shadow:0 30px 70px -38px rgba(38,30,16,.45),0 1px 0 rgba(255,255,255,.9) inset;
  overflow:hidden;
}
.demo-bar{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 16px;border-bottom:1px solid var(--line);
  background:#faf8f3;
  font-size:11px;color:var(--dim);
}
.live{display:flex;align-items:center;gap:7px;letter-spacing:.08em;text-transform:uppercase;font-size:10px}
.live i{width:5px;height:5px;border-radius:50%;background:var(--live)}
.demo-body{padding:24px 22px 18px;font-size:15px;line-height:1.68}
.msg{margin-bottom:18px}
.who{
  display:block;font-family:var(--mono);font-size:10px;letter-spacing:.12em;
  color:var(--dim);margin-bottom:7px;
}
.msg-q p{
  margin:0;color:var(--text);background:#f4f1ea;
  padding:11px 14px;border-radius:9px;display:inline-block;
}
.msg-a ul{margin:0;padding-left:0;list-style:none}
.msg-a li{
  position:relative;padding-left:16px;margin-bottom:8px;color:#2f3339;
}
.msg-a li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:5px;height:1px;background:var(--accent);
}
.msg-a.dim p{margin:0;color:var(--muted)}
.demo-foot{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:6px;padding-top:14px;border-top:1px solid var(--line);
  font-size:11.5px;color:var(--dim);
}
.src{display:flex;align-items:center;gap:7px}
.cursor{width:7px;height:13px;background:var(--accent);opacity:.72;animation:blink 1.1s steps(2) infinite}
@keyframes blink{50%{opacity:0}}
@media (prefers-reduced-motion:reduce){.cursor{animation:none}}

/* ---------- sections ---------- */
.section{max-width:var(--max);margin:0 auto;padding:104px 28px}
.sec-head{max-width:760px;margin-bottom:52px}
.kicker{
  margin:0 0 16px;font-family:var(--mono);font-size:11px;
  letter-spacing:.14em;text-transform:uppercase;color:var(--dim);
}
h2{
  margin:0;font-size:clamp(28px,3.6vw,42px);line-height:1.18;
  letter-spacing:-.032em;font-weight:600;
}
.sec-lede{margin:16px 0 0;color:var(--muted);max-width:620px}

.three{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.four{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.card{background:var(--bg-soft);padding:28px 24px;transition:background .25s}
.card:hover{background:#fff}
.card h3{margin:0 0 10px;font-size:16px;font-weight:600;letter-spacing:-.01em}
.card p{margin:0;font-size:14px;line-height:1.7;color:var(--muted)}
.feature .idx{font-size:11px;color:var(--accent);opacity:.8;margin-bottom:16px;display:block}
.card.feature{padding:32px 24px}

/* ---------- modules ---------- */
.module{display:flex;flex-direction:column;min-height:230px;padding:26px 22px}
.mod-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.mod-idx{font-size:11px;color:var(--dim);letter-spacing:.1em}
.status{
  display:inline-flex;align-items:center;gap:6px;
  font-size:10.5px;letter-spacing:.06em;
  border-radius:999px;padding:2px 9px;border:1px solid var(--line);
  color:var(--dim);background:#fff;
}
.status i{width:5px;height:5px;border-radius:50%;background:var(--dim)}
.status.on{color:var(--accent);border-color:rgba(168,99,15,.3);background:#fffaf1}
.status.on i{background:var(--accent)}
.module h3{font-size:16px;margin-bottom:10px}
.module p{flex:1}
.mod-link{margin-top:18px;font-size:12.5px;color:var(--accent);letter-spacing:-.01em}
.mod-link:hover{text-decoration:underline;text-underline-offset:3px}
.module.soon h3{color:var(--muted)}

/* ---------- kpi ---------- */
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:-16px 0 44px;padding-top:26px;border-top:1px solid var(--line)}
.kpi b{display:block;font-size:26px;font-weight:500;letter-spacing:-.03em;line-height:1.2}
.kpi span{font-size:12px;color:var(--muted)}

/* ---------- pipeline ---------- */
.pipeline{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.step{background:var(--bg-soft);padding:30px 24px 26px;position:relative;display:flex;flex-direction:column}
.step-n{display:block;font-size:11px;color:var(--dim);margin-bottom:18px}
.step h3{margin:0 0 10px;font-size:15px;font-weight:600}
.step p{margin:0;font-size:13.5px;line-height:1.68;color:var(--muted)}
.step-meta{display:block;margin-top:auto;padding-top:20px;font-size:11px;color:var(--accent)}
.kb-note{
  margin:26px 0 0;padding:18px 20px;font-size:13.5px;color:var(--muted);
  border-left:2px solid rgba(168,99,15,.35);
  background:#fffdf8;border-radius:0 8px 8px 0;
}

/* ---------- pricing ---------- */
.plans{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.plan{
  border:1px solid var(--line);border-radius:14px;padding:32px 30px 30px;
  background:var(--bg-soft);display:flex;flex-direction:column;
}
.plan-pro{
  border-color:rgba(168,99,15,.32);
  background:linear-gradient(180deg,#fff9ef,#fffdfa 52%);
}
.plan-top{display:flex;align-items:center;gap:10px}
.badge{
  font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);
  border:1px solid rgba(168,99,15,.3);border-radius:999px;padding:2px 8px;background:#fff;
}
.plan h3{margin:0;font-size:17px;font-weight:600;letter-spacing:-.01em}
.price{
  margin:14px 0 4px;font-family:var(--mono);font-size:40px;line-height:1;
  letter-spacing:-.04em;font-weight:500;display:flex;align-items:baseline;gap:4px;
}
.price span{font-size:18px;color:var(--text);letter-spacing:0;font-weight:500;margin-right:1px}
.price .per{font-size:13px;color:var(--muted)}
.plan-sub{margin:0 0 22px;font-size:13px;color:var(--muted)}
.plan ul{list-style:none;margin:0;padding:22px 0 0;border-top:1px solid var(--line);flex:1}
.plan li{position:relative;padding-left:18px;margin-bottom:11px;font-size:13.5px;color:#3a3f46}
.plan li::before{content:"";position:absolute;left:0;top:.55em;width:6px;height:6px;border-radius:50%;border:1px solid var(--line-strong)}
.plan-pro li::before{border-color:rgba(168,99,15,.5)}
.plan li.muted{color:var(--dim)}
.plan li.muted::before{opacity:.4}
.fine{margin:22px 0 0;font-size:12px;color:var(--dim)}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line);max-width:820px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;padding:20px 0;
  font-size:15px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  transition:color .2s;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";font-family:var(--mono);color:var(--dim);font-size:14px;
  transition:transform .2s;
}
.faq summary:hover{color:#000}
.faq details[open] summary::after{content:"−";color:var(--accent)}
.faq p{margin:0 0 22px;padding-right:40px;font-size:14px;line-height:1.7;color:var(--muted)}

/* ---------- final cta ---------- */
.cta-final{text-align:center;padding:96px 28px 110px}
.cta-final h2{margin-bottom:14px}
.cta-final p{margin:0 0 30px;color:var(--muted)}

/* ---------- footer ---------- */
.footer{border-top:1px solid var(--line);background:#efeee8}
.foot-grid{
  max-width:var(--max);margin:0 auto;padding:48px 28px 30px;
  display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.foot-note{margin:14px 0 0;font-size:13px;color:var(--dim)}
.foot-links{display:flex;gap:24px;font-size:13px;color:var(--muted);align-items:flex-start}
.foot-links a:hover{color:var(--text)}
.foot-bottom{
  max-width:var(--max);margin:0 auto;padding:0 28px 36px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:11px;color:var(--dim);
}

/* ---------- legal ---------- */
.legal{max-width:820px;margin:0 auto;padding:72px 28px 96px}
.legal h1{font-size:clamp(30px,4vw,44px);margin:0 0 8px;letter-spacing:-.03em}
.legal-meta{color:var(--dim);font-size:12px;margin:0 0 34px}
.legal h2{font-size:17px;margin:38px 0 10px;letter-spacing:-.01em}
.legal p,.legal li{color:var(--muted);font-size:14.5px;line-height:1.75}
.legal ul{padding-left:20px;margin:10px 0}
.legal li{margin-bottom:8px}
.legal a{color:var(--accent)}
.legal-sep{margin:64px 0;border:0;border-top:1px solid var(--line)}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .demo{order:2}
  .three{grid-template-columns:1fr}
  .four{grid-template-columns:1fr 1fr}
  .pipeline{grid-template-columns:1fr 1fr}
  .plans{grid-template-columns:1fr}
  .kpis{gap:16px}
}
@media (max-width:700px){
  .nav-links{display:none}
  .nav{padding:14px 20px;gap:16px}
  .hero{padding:52px 0 64px}
  .hero-grid,.section,.foot-grid,.foot-bottom{padding-left:20px;padding-right:20px}
  .section{padding-top:76px;padding-bottom:76px}
  .four,.pipeline{grid-template-columns:1fr}
  .kpis{grid-template-columns:1fr;gap:14px}
  .foot-links{flex-direction:column;gap:10px}
  h1{font-size:36px}
}