/* ============================================================
   灵策智算 LynxceAI — 官网视觉升级
   Brand: 灵动 + 策略 + 智能算力 → violet→blue→cyan energy
   ============================================================ */

:root{
  /* brand energy gradient */
  --b1:#7b61ff; --b2:#3b82f6; --b3:#22d3ee;
  --grad:linear-gradient(115deg,#7b61ff 0%,#3b82f6 52%,#22d3ee 100%);
  --grad-rev:linear-gradient(115deg,#22d3ee 0%,#3b82f6 48%,#7b61ff 100%);
  --grad-soft:linear-gradient(135deg,rgba(123,97,255,.12),rgba(59,130,246,.10) 55%,rgba(34,211,238,.12));

  /* light surfaces */
  --bg:#fafbfc;
  --bg-2:#ffffff;
  --bg-pale:#f4f6fb;
  --ink:#12141c;
  --ink-2:#3c4250;
  --muted:#6b7280;
  --faint:#9aa2b2;
  --line:#e9ebf2;
  --line-2:#e0e3ee;
  --card:#ffffff;

  --ink-dark:#0a0b12;     /* deep panel / footer */
  --ink-dark-2:#11131f;

  --r-sm:9px; --r-md:13px; --r-lg:18px; --r-xl:26px; --r-pill:999px;
  --shadow-sm:0 1px 2px rgba(18,22,40,.05), 0 1px 3px rgba(18,22,40,.04);
  --shadow-md:0 8px 24px rgba(18,22,40,.07), 0 2px 6px rgba(18,22,40,.04);
  --shadow-lg:0 28px 70px rgba(30,40,90,.14), 0 8px 22px rgba(30,40,90,.08);
  --shadow-glow:0 24px 70px rgba(99,102,241,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-spring:cubic-bezier(.34,1.4,.5,1);

  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;
  --font-d:"PingFang SC",-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI",system-ui,sans-serif;
  --mono:"SF Mono",ui-monospace,"JetBrains Mono",Menlo,monospace;
}

*{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:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img,svg,video{display:block}
::selection{background:rgba(123,97,255,.22)}

.wrap{width:min(1180px,90%);margin:0 auto}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:var(--b2)}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--grad)}

/* ===== buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:var(--r-pill);
  padding:12px 24px;font-size:15px;font-weight:650;cursor:pointer;border:1px solid transparent;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
  white-space:nowrap;font-family:inherit}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(91,108,239,.30)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 38px rgba(91,108,239,.42)}
.btn-ghost{background:var(--bg-2);color:var(--ink);border-color:var(--line-2);box-shadow:var(--shadow-sm)}
.btn-ghost:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--b1) 40%,var(--line-2));color:var(--b2)}
.btn-sm{padding:9px 18px;font-size:13.5px}
.btn-lg{padding:15px 30px;font-size:16px}

/* ===== nav ===== */
nav{position:sticky;top:0;z-index:60;backdrop-filter:blur(18px) saturate(1.4);
  background:rgba(250,251,252,.78);border-bottom:1px solid transparent;transition:border-color .25s,background .25s}
nav.scrolled{border-bottom-color:var(--line);background:rgba(250,251,252,.9)}
.nav-in{display:flex;align-items:center;height:68px;gap:36px}
.brand{display:flex;align-items:center;gap:11px}
.brand img{width:34px;height:34px;flex-shrink:0;filter:drop-shadow(0 4px 10px rgba(123,97,255,.3))}
.brand-tx{display:flex;flex-direction:column;line-height:1.05}
.brand-tx b{font-family:var(--font-d);font-size:17px;font-weight:800;letter-spacing:.3px;color:var(--ink)}
.brand-tx small{font-size:9.5px;color:var(--muted);letter-spacing:.16em;font-weight:600;margin-top:3px;text-transform:uppercase}
.nav-links{display:flex;gap:30px;color:var(--ink-2);font-size:14.5px;font-weight:550}
.nav-links a{position:relative;padding:4px 0;transition:color .18s}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:-2px;height:2px;border-radius:2px;
  background:var(--grad);transition:right .25s var(--ease)}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.active::after{right:0}
.nav-links a.active{color:var(--ink);font-weight:650}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.lang-toggle{background:transparent;border:1px solid var(--line-2);color:var(--ink-2);border-radius:var(--r-pill);
  padding:7px 14px;font-size:13px;font-weight:650;cursor:pointer;transition:.2s;font-family:inherit}
.lang-toggle:hover{border-color:var(--b2);color:var(--b2)}

/* ===== hero ===== */
header{position:relative;padding:78px 0 70px;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero-bg .grid{position:absolute;inset:0;
  background-image:linear-gradient(rgba(60,80,160,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(60,80,160,.05) 1px,transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(120% 80% at 50% 0%,#000 30%,transparent 72%);
  -webkit-mask-image:radial-gradient(120% 80% at 50% 0%,#000 30%,transparent 72%)}
.orb{position:absolute;border-radius:50%;filter:blur(60px);opacity:.5}
.orb.o1{width:480px;height:480px;left:-120px;top:-180px;background:radial-gradient(closest-side,rgba(123,97,255,.55),transparent);animation:float1 16s var(--ease) infinite}
.orb.o2{width:520px;height:520px;right:-160px;top:-120px;background:radial-gradient(closest-side,rgba(34,211,238,.42),transparent);animation:float2 19s var(--ease) infinite}
.orb.o3{width:400px;height:400px;left:40%;top:120px;background:radial-gradient(closest-side,rgba(59,130,246,.34),transparent);animation:float1 22s var(--ease) infinite reverse}
@keyframes float1{0%,100%{transform:translate(0,0)}50%{transform:translate(40px,40px)}}
@keyframes float2{0%,100%{transform:translate(0,0)}50%{transform:translate(-50px,30px)}}

.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
.hero-pill{display:inline-flex;align-items:center;gap:9px;background:var(--bg-2);border:1px solid var(--line-2);
  border-radius:var(--r-pill);padding:6px 8px 6px 6px;font-size:13px;font-weight:600;color:var(--ink-2);
  box-shadow:var(--shadow-sm);margin-bottom:24px}
.hero-pill .tag{background:var(--grad);color:#fff;border-radius:var(--r-pill);padding:3px 10px;font-size:11.5px;font-weight:700;letter-spacing:.02em}
.hero-pill .arrow{color:var(--faint);transition:transform .2s}
.hero-pill:hover .arrow{transform:translateX(3px)}
h1.title{font-family:var(--font-d);font-size:clamp(40px,5.4vw,64px);line-height:1.08;font-weight:850;letter-spacing:-.02em}
.hero-sub{margin-top:22px;max-width:540px;color:var(--ink-2);font-size:clamp(16px,1.4vw,18.5px);line-height:1.7}
.hero-cta{display:flex;align-items:center;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-meta{display:flex;align-items:center;gap:20px;margin-top:30px;flex-wrap:wrap}
.hero-meta .m{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);font-weight:550}
.hero-meta .m svg{width:17px;height:17px;color:var(--b2)}
.hero-meta .sep{width:1px;height:14px;background:var(--line-2)}

/* product window mock */
.hero-vis{position:relative}
.win{border-radius:var(--r-xl);overflow:hidden;background:var(--bg-2);border:1px solid var(--line-2);
  box-shadow:var(--shadow-lg);animation:floatwin 7s ease-in-out infinite}
@keyframes floatwin{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.win-bar{display:flex;align-items:center;gap:8px;padding:11px 14px;background:var(--bg-pale);border-bottom:1px solid var(--line)}
.win-bar .dots{display:flex;gap:6px}
.win-bar .dots i{width:11px;height:11px;border-radius:50%;display:block}
.win-bar .dots i:nth-child(1){background:#ff5f57}.win-bar .dots i:nth-child(2){background:#febc2e}.win-bar .dots i:nth-child(3){background:#28c840}
.win-bar .addr{margin-left:8px;flex:1;background:var(--bg-2);border:1px solid var(--line);border-radius:7px;
  padding:4px 12px;font-size:11.5px;color:var(--faint);font-family:var(--mono)}
.win-body{display:grid;grid-template-columns:148px 1fr;height:382px}
.win-sb{background:var(--bg-pale);border-right:1px solid var(--line);padding:14px 11px;display:flex;flex-direction:column;gap:6px}
.win-sb .s-new{display:flex;align-items:center;gap:8px;background:var(--grad);color:#fff;border-radius:9px;padding:8px 10px;font-size:12px;font-weight:650;box-shadow:0 4px 12px rgba(91,108,239,.3)}
.win-sb .s-new svg{width:14px;height:14px}
.win-sb .s-lbl{font-size:9.5px;font-weight:700;letter-spacing:.08em;color:var(--faint);text-transform:uppercase;padding:8px 6px 2px}
.win-sb .s-row{display:flex;align-items:center;gap:9px;padding:7px 8px;border-radius:8px;font-size:12px;color:var(--ink-2);font-weight:550}
.win-sb .s-row svg{width:15px;height:15px;color:var(--muted)}
.win-sb .s-row.on{background:rgba(123,97,255,.1);color:var(--b2);font-weight:650}
.win-sb .s-row.on svg{color:var(--b2)}
.win-chat{display:flex;flex-direction:column;padding:16px;gap:12px;overflow:hidden;background:var(--bg-2)}
.bubble{max-width:88%;font-size:12.5px;line-height:1.55;border-radius:13px;padding:10px 13px}
.bubble.user{align-self:flex-end;background:var(--grad);color:#fff;border-bottom-right-radius:4px}
.bubble.ai{align-self:flex-start;background:var(--bg-pale);border:1px solid var(--line);color:var(--ink);border-bottom-left-radius:4px}
.task-card{align-self:flex-start;width:100%;border:1px solid var(--line-2);border-radius:12px;overflow:hidden;box-shadow:var(--shadow-sm)}
.task-head{display:flex;align-items:center;gap:9px;padding:9px 12px;background:var(--bg-pale);border-bottom:1px solid var(--line);font-size:11.5px;font-weight:700;color:var(--ink)}
.task-head .spin{width:14px;height:14px;border-radius:50%;border:2px solid rgba(123,97,255,.25);border-top-color:var(--b1);animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.task-head .pct{margin-left:auto;font-family:var(--mono);font-size:11px;color:var(--b2);font-weight:700}
.task-steps{padding:10px 12px;display:flex;flex-direction:column;gap:7px}
.tstep{display:flex;align-items:center;gap:9px;font-size:11.5px;color:var(--ink-2)}
.tstep .ck{width:15px;height:15px;border-radius:50%;display:grid;place-items:center;flex-shrink:0}
.tstep.done .ck{background:rgba(34,197,94,.15);color:#16a34a}
.tstep.done .ck svg{width:9px;height:9px;stroke-width:3}
.tstep.run .ck{border:2px solid var(--b1);box-sizing:border-box}
.tstep.wait{color:var(--faint)}
.tstep.wait .ck{border:2px solid var(--line-2);box-sizing:border-box}
.win-input{margin-top:auto;display:flex;align-items:center;gap:8px;border:1px solid var(--line-2);border-radius:11px;padding:9px 11px;background:var(--bg-2);box-shadow:var(--shadow-sm)}
.win-input .ph{flex:1;font-size:12px;color:var(--faint)}
.win-input .send{width:26px;height:26px;border-radius:8px;background:var(--grad);display:grid;place-items:center;color:#fff}
.win-input .send svg{width:14px;height:14px}
.float-badge{position:absolute;background:var(--bg-2);border:1px solid var(--line-2);border-radius:13px;
  box-shadow:var(--shadow-md);padding:11px 14px;display:flex;align-items:center;gap:10px;font-size:12.5px;font-weight:650}
.float-badge .fi{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;color:#fff;background:var(--grad)}
.float-badge .fi svg{width:16px;height:16px}
.float-badge small{display:block;font-size:10.5px;font-weight:500;color:var(--muted)}
.fb-1{left:-34px;top:64px;animation:floatwin 6s ease-in-out infinite}
.fb-2{right:-26px;bottom:54px;animation:floatwin 8s ease-in-out infinite .5s}

/* ===== logos / trust strip ===== */
.trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-2);padding:26px 0}
.trust-in{display:flex;align-items:center;justify-content:center;gap:40px;flex-wrap:wrap}
.trust .lbl{font-size:13px;color:var(--faint);font-weight:600}
.trust .stat{display:flex;flex-direction:column;align-items:center;line-height:1.2}
.trust .stat b{font-family:var(--font-d);font-size:22px;font-weight:850;letter-spacing:-.01em}
.trust .stat span{font-size:12px;color:var(--muted)}

/* ===== sections ===== */
section.block{padding:88px 0}
.sec-head{text-align:center;max-width:680px;margin:0 auto 52px}
.sec-head .eyebrow{margin-bottom:16px}
.sec-head h2{font-family:var(--font-d);font-size:clamp(28px,3.6vw,44px);font-weight:850;letter-spacing:-.02em;line-height:1.14}
.sec-head p{color:var(--muted);margin-top:14px;font-size:16px;line-height:1.7}

/* value cards */
.vcards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.vcard{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;
  box-shadow:var(--shadow-sm);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);overflow:hidden}
.vcard::before{content:"";position:absolute;inset:0;background:var(--grad-soft);opacity:0;transition:opacity .22s}
.vcard:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:color-mix(in srgb,var(--b1) 30%,var(--line))}
.vcard:hover::before{opacity:1}
.vcard>*{position:relative;z-index:1}
.vc-ic{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;color:#fff;background:var(--grad);box-shadow:0 8px 20px rgba(91,108,239,.3);margin-bottom:18px}
.vc-ic svg{width:24px;height:24px}
.vcard h3{font-family:var(--font-d);font-size:19px;font-weight:800;margin-bottom:10px}
.vcard p{color:var(--muted);font-size:14.5px;line-height:1.7}

/* feature matrix */
.fmatrix{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.fcell{display:flex;align-items:flex-start;gap:14px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);padding:20px;transition:transform .2s var(--ease),border-color .2s}
.fcell:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--b1) 34%,var(--line))}
.fcell .fi{width:42px;height:42px;flex-shrink:0;border-radius:11px;display:grid;place-items:center;
  background:var(--grad-soft);color:var(--b2)}
.fcell .fi svg{width:21px;height:21px}
.fcell b{display:block;font-size:15.5px;font-weight:750;margin-bottom:3px}
.fcell span{font-size:13px;color:var(--muted);line-height:1.6}

/* enterprise AI transformation path */
.growth-path{
  position:relative;overflow:hidden;
  min-height:calc(100svh - 68px);
  padding:118px 0 18px;
  background:linear-gradient(180deg,#eef4fe 0%,#f2f6fd 100%);
  color:#10182b;
  border-bottom:1px solid #dfe9f8
}
.growth-wrap{width:min(1500px,92%);margin:0 auto}
.growth-heading{text-align:center;position:relative;z-index:3}
.growth-kicker{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:30px;padding:6px 16px;border:1px solid rgba(59,130,246,.16);
  border-radius:var(--r-pill);background:rgba(255,255,255,.42);
  color:#347cf2;font-size:12px;line-height:1;font-weight:750;letter-spacing:.03em
}
.growth-heading h2{
  margin:18px auto 0;max-width:1120px;
  font-family:var(--font-d);font-size:clamp(34px,3.2vw,52px);
  font-weight:850;line-height:1.24;letter-spacing:-.035em;color:#080d19
}
.growth-visual{position:relative;height:720px;margin-top:0}
.growth-illustration{
  position:absolute;z-index:1;left:0;right:0;bottom:-10px;
  display:block;width:100%;height:auto;pointer-events:none;
  transform-origin:50% 100%
}
.growth-stages{
  position:relative;z-index:2;display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));gap:8.2%;
  width:92%;margin:0 auto;padding-top:12px
}
.growth-stage-card{
  --stage-y:0px;
  min-height:226px;padding:22px 22px 24px;
  border:1px solid rgba(48,105,199,.18);border-radius:22px;
  background:rgba(255,255,255,.88);
  box-shadow:0 18px 46px rgba(54,94,158,.10);
  backdrop-filter:blur(12px);transform:translateY(var(--stage-y));
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease)
}
.growth-stage-card:nth-child(1){--stage-y:210px}
.growth-stage-card:nth-child(2){--stage-y:140px}
.growth-stage-card:nth-child(3){--stage-y:70px}
.growth-stage-card:nth-child(4){--stage-y:0px}
.growth-stage-card:hover{
  transform:translateY(calc(var(--stage-y) - 8px));
  border-color:rgba(48,105,199,.28);
  box-shadow:0 25px 56px rgba(54,94,158,.16)
}
.growth-stage-head{display:flex;align-items:center;gap:14px}
.growth-stage-head b{
  display:grid;place-items:center;flex:0 0 auto;
  width:50px;height:50px;border-radius:14px;
  background:linear-gradient(145deg,#4d92ff,#2465ed);
  box-shadow:0 8px 18px rgba(37,99,235,.28);
  color:#fff;font-family:var(--font-d);font-size:20px;font-weight:800;letter-spacing:-.02em
}
.growth-stage-head h3{
  color:#172445;font-family:var(--font-d);
  font-size:clamp(20px,1.5vw,26px);font-weight:800;line-height:1.2;letter-spacing:-.02em
}
.growth-stage-card p{
  margin-top:18px;color:#63728f;
  font-size:15px;line-height:1.8
}
.growth-ready .growth-stage-card,.growth-ready .growth-illustration{opacity:0}
.growth-active .growth-stage-card{animation:growthCardIn .92s var(--ease) both}
.growth-active .growth-stage-card:nth-child(1){animation-delay:.10s}
.growth-active .growth-stage-card:nth-child(2){animation-delay:.32s}
.growth-active .growth-stage-card:nth-child(3){animation-delay:.54s}
.growth-active .growth-stage-card:nth-child(4){animation-delay:.76s}
.growth-active .growth-illustration{animation:growthPathReveal 1.86s cubic-bezier(.2,.72,.2,1) .08s both}
.growth-looping .growth-stage-card{
  opacity:1;
  animation:growthCardFloat 4.8s ease-in-out infinite
}
.growth-looping .growth-stage-card:nth-child(2){animation-delay:-1.2s}
.growth-looping .growth-stage-card:nth-child(3){animation-delay:-2.4s}
.growth-looping .growth-stage-card:nth-child(4){animation-delay:-3.6s}
.growth-looping .growth-illustration{
  opacity:1;
  clip-path:inset(0 0 0 0);
  animation:growthImageBreath 4.2s ease-in-out infinite
}
@keyframes growthCardIn{
  from{opacity:0;transform:translateY(calc(var(--stage-y) + 48px)) scale(.965);filter:blur(4px)}
  to{opacity:1;transform:translateY(var(--stage-y)) scale(1)}
}
@keyframes growthPathReveal{
  from{opacity:.2;clip-path:inset(0 100% 0 0);transform:translateY(22px) scale(.985)}
  to{opacity:1;clip-path:inset(0 0 0 0);transform:translateY(0) scale(1)}
}
@keyframes growthCardFloat{
  0%,100%{opacity:1;transform:translateY(var(--stage-y))}
  50%{opacity:1;transform:translateY(calc(var(--stage-y) - 6px))}
}
@keyframes growthImageBreath{
  0%,100%{opacity:1;transform:translateY(0);filter:saturate(1)}
  50%{opacity:1;transform:translateY(-3px);filter:saturate(1.06)}
}

/* why choose LynxceAI */
.why-lynxce{
  position:relative;overflow:hidden;outline:none;scroll-margin-top:64px;
  min-height:clamp(860px,120svh,1040px);
  padding:clamp(150px,16vh,210px) 0 36px;
  background:#eef4ff;color:#0a0a0a;
  transition:background-color .5s ease
}
.why-lynxce>h2{
  margin:0 auto 18px;padding:0 24px;text-align:center;
  font-family:var(--font-d);font-size:clamp(42px,4vw,68px);
  font-weight:850;line-height:1.12;letter-spacing:-.035em
}
.why-stage{
  position:relative;width:min(94vw,3000px);height:540px;
  margin:0 auto;overflow:hidden
}
.why-track{
  display:flex;width:400%;height:100%;
  transform:translate3d(calc(var(--why-index,0) * -25%),0,0);
  transition:transform .5s cubic-bezier(.4,0,.2,1);
  will-change:transform
}
.why-slide{
  position:relative;display:grid;flex:0 0 25%;width:25%;min-width:0;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  align-items:start;gap:clamp(28px,3vw,110px);
  padding:0 clamp(42px,3vw,100px)
}
.why-slide-skills{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr)}
.why-slide-custom{grid-template-columns:1fr;align-items:start}
.why-visual{
  position:relative;min-width:0;display:flex;
  align-items:flex-start;justify-content:center
}
.why-visual>img{
  display:block;width:auto;max-width:100%;height:auto;max-height:440px;
  object-fit:contain;border-radius:18px;
  box-shadow:0 34px 72px rgba(67,113,191,.14)
}
.why-slide-workbench .why-visual>img,.why-slide-skills .why-visual>img{max-height:390px}
.why-copy{min-width:0;padding-top:62px}
.why-slide-team .why-copy{padding-top:12px}
.why-slide-custom .why-copy{padding-top:0}
.why-eyebrow{
  display:flex;align-items:center;gap:12px;margin-bottom:22px;
  color:#2076e8;font-size:clamp(13px,.88vw,25px);font-weight:700
}
.why-eyebrow::before{
  content:"";width:20px;height:3px;border-radius:4px;background:#3b82f6;flex:0 0 auto
}
.why-copy h3{
  margin:0 0 20px;font-family:var(--font-d);
  font-size:clamp(28px,2.25vw,52px);font-weight:850;
  line-height:1.24;letter-spacing:-.025em;color:#111827
}
.why-copy>p{
  margin:0;color:#4b5563;font-size:clamp(15px,.98vw,27px);
  line-height:1.85
}
.why-cta{
  display:inline-flex;align-items:center;gap:12px;
  margin-top:26px;padding:12px 22px;border:1px solid #c9ddfb;
  border-radius:999px;background:#fff;color:#2076e8;
  box-shadow:0 8px 22px rgba(43,108,206,.06);
  font-size:clamp(14px,.9vw,24px);font-weight:700;
  transition:transform .2s ease,box-shadow .2s ease
}
.why-cta:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(43,108,206,.12)}
.why-cta img{width:18px;height:18px;object-fit:contain}
.why-arrow{
  position:absolute;z-index:4;top:50%;display:flex;width:48px;height:48px;
  align-items:center;justify-content:center;padding:0;
  border:1px solid #dbeafe;border-radius:50%;outline:none;
  background:#fff;color:#2076e8;cursor:pointer;
  box-shadow:0 4px 16px rgba(32,118,232,.1);
  transform:translateY(-50%);
  transition:opacity .2s ease,transform .2s ease,border-color .2s ease,box-shadow .2s ease
}
.why-arrow:focus-visible{outline:2px solid #2076e8;outline-offset:2px;border-radius:50%}
.why-arrow:hover:not(:disabled){border-color:#2076e8;box-shadow:0 6px 20px rgba(32,118,232,.16);transform:translateY(-50%) scale(1.04)}
.why-arrow:disabled{opacity:.3;cursor:default}
.why-arrow svg{display:block;width:16px;height:16px}
.why-arrow-prev{left:20px}.why-arrow-next{right:20px}
.why-pagination{text-align:center;margin-top:10px;color:#2076e8}
.why-pagination>span{display:block;font-size:clamp(13px,.88vw,22px);margin-bottom:14px}
.why-dots{display:flex;justify-content:center;align-items:center;gap:10px}
.why-dots button{
  width:9px;height:9px;padding:0;border:0;border-radius:999px;
  background:#dbeafe;cursor:pointer;transition:width .3s ease,background .3s ease
}
.why-dots button.is-active{width:28px;background:#2076e8}
.why-platforms{margin-top:20px}
.why-platforms>b{display:block;margin-bottom:10px;font-size:14px}
.why-platform-row{
  display:grid;grid-template-columns:36px 1fr auto;gap:10px;align-items:center;
  margin-top:8px;padding:9px 12px;border:1px solid #dce7f6;
  border-radius:12px;background:rgba(255,255,255,.88)
}
.why-platform-row>img{width:32px;height:32px;object-fit:contain;border-radius:8px}
.why-platform-row span{display:block;min-width:0}.why-platform-row strong{display:block;font-size:13px}
.why-platform-row small{display:block;margin-top:2px;color:#7b8496;font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.why-platform-row em{padding:4px 9px;border-radius:999px;background:#effcf4;color:#57a66d;font-size:11px;font-style:normal}
.why-slide-custom .why-copy{width:min(88%,2400px);margin:0 auto}
.why-slide-custom .why-copy>p{max-width:2200px}
.why-feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:26px}
.why-feature-card{
  min-height:185px;padding:20px;border:1px solid #dce7f6;border-radius:16px;
  background:rgba(255,255,255,.94);box-shadow:0 16px 40px rgba(72,102,152,.07)
}
.why-feature-card>img{width:40px;height:40px;padding:8px;border-radius:10px;background:#eef4ff}
.why-feature-card h4{margin:12px 0 8px;font-size:18px}
.why-feature-card p{color:#6b7280;font-size:13px;line-height:1.7}
.why-team-steps{
  position:absolute;z-index:2;left:50%;bottom:13px;
  display:flex;align-items:center;justify-content:center;gap:7px;
  transform:translateX(-50%)
}
.why-team-steps button{
  width:7px;height:7px;padding:0;border:0;border-radius:999px;
  background:#dbeafe;box-shadow:0 0 0 1px rgba(255,255,255,.9);
  cursor:pointer;transition:width .28s ease,background-color .28s ease
}
.why-team-steps button.is-active{width:20px;background:#2076e8}
.why-motion-ready .why-heading,.why-motion-ready .why-stage{
  opacity:0;transform:translateY(26px)
}
.why-motion-ready.why-inview .why-heading{
  animation:whyHeadingIn .72s cubic-bezier(.2,.72,.2,1) both
}
.why-motion-ready.why-inview .why-stage{
  animation:whyStageIn .82s cubic-bezier(.2,.72,.2,1) .1s both
}
.why-motion-ready.why-inview .why-slide.is-active .why-visual{
  animation:whyVisualIn .68s cubic-bezier(.2,.72,.2,1) .13s both
}
.why-motion-ready.why-inview .why-slide.is-active .why-copy>*{
  animation:whyCopyIn .54s cubic-bezier(.2,.72,.2,1) both
}
.why-motion-ready.why-inview .why-slide.is-active .why-copy>*:nth-child(1){animation-delay:.12s}
.why-motion-ready.why-inview .why-slide.is-active .why-copy>*:nth-child(2){animation-delay:.18s}
.why-motion-ready.why-inview .why-slide.is-active .why-copy>*:nth-child(3){animation-delay:.24s}
.why-motion-ready.why-inview .why-slide.is-active .why-copy>*:nth-child(4){animation-delay:.3s}
.why-motion-ready.why-inview .why-slide.is-active .why-copy>*:nth-child(5){animation-delay:.36s}
.why-slide-team.is-active .why-visual.why-team-pulse>img{
  animation:whyTeamPulse .52s cubic-bezier(.2,.72,.2,1)
}
@keyframes whyHeadingIn{
  from{opacity:0;transform:translateY(28px)}
  to{opacity:1;transform:translateY(0)}
}
@keyframes whyStageIn{
  from{opacity:0;transform:translateY(34px) scale(.985)}
  to{opacity:1;transform:translateY(0) scale(1)}
}
@keyframes whyVisualIn{
  from{opacity:0;transform:translateX(-30px) scale(.985)}
  to{opacity:1;transform:translateX(0) scale(1)}
}
@keyframes whyCopyIn{
  from{opacity:0;transform:translateX(26px)}
  to{opacity:1;transform:translateX(0)}
}
@keyframes whyTeamPulse{
  0%{transform:scale(1);filter:saturate(1)}
  45%{transform:scale(1.012);filter:saturate(1.1)}
  100%{transform:scale(1);filter:saturate(1)}
}

/* showcase */
.showcase{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:34px}
.showcase.rev .stext{order:2}
.showcase .stext .eyebrow{margin-bottom:14px}
.showcase .stext h3{font-family:var(--font-d);font-size:clamp(24px,2.8vw,32px);font-weight:850;letter-spacing:-.01em;margin-bottom:14px;line-height:1.2}
.showcase .stext .lead{color:var(--ink-2);font-size:16px;margin-bottom:14px;font-weight:550}
.showcase .stext p{color:var(--muted);font-size:14.5px;line-height:1.75}
.showcase .stext .feats{margin-top:18px;display:flex;flex-direction:column;gap:9px}
.showcase .stext .feats .f{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-2);font-weight:550}
.showcase .stext .feats .f svg{width:18px;height:18px;color:#16a34a;flex-shrink:0}
.vidframe{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-2);background:var(--ink-dark);box-shadow:var(--shadow-lg)}
.vidframe .vf-bar{display:flex;align-items:center;gap:7px;padding:10px 13px;background:#15182a}
.vidframe .vf-bar i{width:10px;height:10px;border-radius:50%}
.vidframe .vf-bar i:nth-child(1){background:#ff5f57}.vidframe .vf-bar i:nth-child(2){background:#febc2e}.vidframe .vf-bar i:nth-child(3){background:#28c840}
.vidframe .vf-bar span{margin-left:8px;font-size:11px;color:#7a82a0;font-family:var(--mono)}
.panel-video{width:100%;aspect-ratio:16/10;object-fit:cover;display:block;background:var(--ink-dark)}

/* download */
#download{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.dlcard{display:grid;grid-template-columns:1fr 1fr;background:var(--card);border:1px solid var(--line-2);
  border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--shadow-md);max-width:880px;margin:0 auto}
.dlcol{padding:30px 32px}
.dlcol+.dlcol{border-left:1px solid var(--line)}
.dlcol-head{display:flex;align-items:center;gap:11px;margin-bottom:20px}
.dlcol-head .os{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:var(--bg-pale);border:1px solid var(--line);color:var(--ink)}
.dlcol-head .os svg{width:20px;height:20px}
.dlcol-head h4{font-family:var(--font-d);font-size:17px;font-weight:800}
.dlcol-head .tag{margin-left:auto;font-size:12px;color:var(--b2);background:var(--grad-soft);
  border-radius:var(--r-pill);padding:5px 12px;cursor:pointer;font-weight:650}
.dlrow{display:flex;align-items:center;gap:14px;padding:14px 0}
.dlrow+.dlrow{border-top:1px dashed var(--line-2)}
.dlrow .meta{flex:1}
.dlrow .meta b{display:block;font-size:14.5px;font-weight:750}
.dlrow .meta span{font-size:12.5px;color:var(--muted)}
.dlbtn{min-width:118px;background:var(--bg-pale);color:var(--muted);border:1px solid var(--line-2);
  border-radius:var(--r-pill);padding:10px 18px;font-size:13.5px;font-weight:700;cursor:pointer;text-align:center;line-height:1.25;transition:.2s;font-family:inherit}
.dlbtn small{display:block;font-size:10.5px;font-weight:500;opacity:.85}
.dlbtn:hover{transform:translateY(-1px)}
.dlbtn.ready{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 8px 18px rgba(91,108,239,.3)}
.dlbtn.ready:hover{box-shadow:0 12px 26px rgba(91,108,239,.45)}
.dlbtn-ghost{background:var(--bg-2);color:var(--ink-2);border:1px solid var(--line-2)}
.dlbtn-ghost:hover{border-color:var(--b2);color:var(--b2)}
.chip-help,.macos-help{font-size:12.5px;color:var(--ink-2);background:var(--bg-pale);border:1px solid var(--line);
  border-radius:12px;padding:13px 16px;line-height:1.7;margin-top:16px}
.macos-help{max-width:880px;margin:16px auto 0}
.macos-help b{color:var(--ink)}
.macos-help code{display:block;margin:9px 0 2px;background:var(--ink-dark);color:#cfe3ff;border-radius:9px;
  padding:11px 13px;font-size:12px;overflow-x:auto;font-family:var(--mono)}
.dlhint{text-align:center;font-size:13.5px;color:var(--faint);margin-top:20px}

/* CTA band */
.ctaband{position:relative;border-radius:var(--r-xl);overflow:hidden;padding:56px 56px;
  background:var(--ink-dark);color:#fff;box-shadow:var(--shadow-lg);
  display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.ctaband::before{content:"";position:absolute;inset:0;background:
  radial-gradient(600px 300px at 12% -20%,rgba(123,97,255,.5),transparent 60%),
  radial-gradient(500px 280px at 92% 120%,rgba(34,211,238,.4),transparent 60%)}
.ctaband>*{position:relative;z-index:1}
.ctaband h2{font-family:var(--font-d);font-size:clamp(26px,3vw,38px);font-weight:850;letter-spacing:-.02em;line-height:1.16}
.ctaband p{color:#aeb6d6;margin-top:12px;font-size:15.5px;max-width:460px}
.ctaband .btn-primary{background:#fff;color:var(--ink);box-shadow:0 12px 30px rgba(0,0,0,.3)}
.ctaband .btn-primary:hover{box-shadow:0 18px 40px rgba(0,0,0,.4)}

/* ===== footer ===== */
footer{background:var(--ink-dark);color:#aeb6d6;padding:56px 0 32px;font-size:13.5px}
.foot-top{display:flex;justify-content:space-between;gap:48px;flex-wrap:wrap;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.09)}
.foot-brand{max-width:340px}
.foot-brand .fb{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:18px;margin-bottom:12px;font-family:var(--font-d)}
.foot-brand .fb img{width:28px;height:28px}
.foot-brand p{color:#8088a0;line-height:1.7}
.foot-cols{display:flex;gap:64px;flex-wrap:wrap}
.foot-col h5{color:#fff;font-size:13.5px;font-weight:700;margin-bottom:14px;letter-spacing:.02em}
.foot-col a,.foot-col span{display:block;color:#8d95ac;margin-bottom:10px;cursor:pointer;transition:color .18s;width:fit-content}
.foot-col a:hover,.foot-col span:hover{color:#fff}
.foot-bottom{padding-top:24px;color:#6a7088;display:flex;gap:18px;flex-wrap:wrap;align-items:center;justify-content:center;text-align:center}
.foot-bottom a:hover{color:#fff}

/* reveal — content is ALWAYS visible (opacity untouched); .in adds a gentle
   transform-only entrance so it can never get stuck hidden in any environment. */
.reveal.in{animation:rise .7s var(--ease) both}
.reveal.in.d1{animation-delay:.07s}
.reveal.in.d2{animation-delay:.14s}
.reveal.in.d3{animation-delay:.21s}
@keyframes rise{from{transform:translateY(20px)}to{transform:none}}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important}
  .reveal{opacity:1;transform:none;transition:none}
  .growth-ready .growth-stage-card,.growth-ready .growth-illustration{opacity:1}
  .growth-stage-card{transform:translateY(var(--stage-y));transition:none}
  .why-track{transition:none}
  .why-motion-ready .why-heading,.why-motion-ready .why-stage{opacity:1;transform:none}
}

@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-vis{max-width:560px;margin:0 auto;width:100%}
  .fb-1{left:0}.fb-2{right:0}
  .growth-path{min-height:auto;padding:92px 0 54px}
  .growth-visual{height:auto;margin-top:42px}
  .growth-stages{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;width:100%;padding:0}
  .growth-stage-card:nth-child(n){--stage-y:0px;min-height:210px}
  .growth-illustration{position:relative;bottom:auto;margin-top:18px}
}

@media(min-width:768px) and (max-width:1100px){
  .why-lynxce{
    min-height:clamp(790px,116svh,900px);
    padding:clamp(122px,15vh,150px) 0 34px
  }
  .why-lynxce>h2{font-size:clamp(40px,4.4vw,48px);margin-bottom:16px}
  .why-stage{width:100%;height:500px}
  .why-slide{
    grid-template-columns:minmax(0,1.15fr) minmax(285px,.85fr);
    gap:24px;padding:0 clamp(38px,4.6vw,58px)
  }
  .why-slide-skills{grid-template-columns:minmax(285px,.85fr) minmax(0,1.15fr)}
  .why-slide-custom{grid-template-columns:1fr}
  .why-slide-workbench .why-visual>img,.why-slide-skills .why-visual>img{max-height:340px}
  .why-slide-team .why-visual>img{max-height:390px}
  .why-copy{padding-top:48px}
  .why-slide-team .why-copy{padding-top:4px}
  .why-eyebrow{margin-bottom:14px}
  .why-copy h3{margin-bottom:14px;font-size:28px}
  .why-copy>p{font-size:14px;line-height:1.68}
  .why-cta{margin-top:18px;padding:10px 18px;font-size:13px}
  .why-platforms{margin-top:12px}
  .why-platforms>b{margin-bottom:6px;font-size:12px}
  .why-platform-row{grid-template-columns:30px 1fr auto;margin-top:6px;padding:7px 9px}
  .why-platform-row>img{width:28px;height:28px}
  .why-platform-row strong{font-size:12px}.why-platform-row small{font-size:10px}
  .why-platform-row em{padding:3px 7px;font-size:10px}
  .why-feature-grid{gap:14px;margin-top:18px}
  .why-feature-card{min-height:165px;padding:16px}
  .why-arrow{top:50%;width:48px;height:48px}
}

@media(max-width:767px){
  .why-lynxce{min-height:auto;padding:92px 0 48px}
  .why-lynxce>h2{font-size:38px;margin-bottom:34px}
  .why-stage{width:100%;height:820px}
  .why-slide,.why-slide-skills{
    grid-template-columns:1fr;align-content:start;gap:28px;
    padding:0 46px
  }
  .why-slide-skills .why-copy{order:2}
  .why-slide-team .why-copy{order:2}
  .why-slide-custom .why-copy{width:100%}
  .why-visual>img,.why-slide-workbench .why-visual>img,
  .why-slide-skills .why-visual>img,.why-slide-team .why-visual>img{max-height:360px}
  .why-copy,.why-slide-team .why-copy{padding-top:0}
  .why-copy h3{font-size:30px}
  .why-feature-grid{grid-template-columns:1fr;gap:14px}
  .why-feature-card{min-height:0}
  .why-arrow{display:none}
  .why-pagination{margin-top:22px}
}
/* ===== 移动端汉堡按钮 + 右侧抽屉菜单 ===== */
.nav-burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;padding:0;border:1px solid var(--line-2);border-radius:var(--r-pill);background:transparent;cursor:pointer}
.nav-burger span{display:block;width:18px;height:2px;margin:0 auto;background:var(--ink);border-radius:2px}
.nav-burger:hover{border-color:var(--b2)}
.navdrawer{position:fixed;inset:0;z-index:200}
.navdrawer[hidden]{display:none}
.navdrawer-backdrop{position:absolute;inset:0;background:rgba(10,11,18,.42);opacity:0;transition:opacity .24s var(--ease)}
.navdrawer-panel{position:absolute;top:0;right:0;height:100%;width:min(78vw,320px);background:var(--card);box-shadow:var(--shadow-lg,0 20px 60px rgba(10,11,18,.28));display:flex;flex-direction:column;padding:18px 18px 24px;transform:translateX(100%);transition:transform .26s var(--ease)}
.navdrawer.show .navdrawer-backdrop{opacity:1}
.navdrawer.show .navdrawer-panel{transform:translateX(0)}
.navdrawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.navdrawer-head .brand-tx b{font-size:16px;font-weight:800;color:var(--ink)}
.navdrawer-x{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border:0;background:transparent;color:var(--muted);cursor:pointer;border-radius:10px}
.navdrawer-x:hover{background:var(--bg-pale);color:var(--ink)}
.navdrawer-links{display:flex;flex-direction:column;margin-top:4px}
.navdrawer-links a{padding:14px 6px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line);text-decoration:none}
.navdrawer-links a.active{color:var(--b2);font-weight:700}
.navdrawer-links a:active{background:var(--bg-pale)}
.navdrawer-cta{margin-top:18px;width:100%;justify-content:center;padding:13px 0;font-size:15px}

@media(max-width:880px){
  .nav-links{display:none}
  .nav-cta-pc{display:none}
  .nav-burger{display:inline-flex}
  .vcards,.fmatrix{grid-template-columns:1fr}
  .dlcard{grid-template-columns:1fr;max-width:520px}
  .dlcol+.dlcol{border-left:0;border-top:1px solid var(--line)}
  .showcase{grid-template-columns:1fr;gap:28px}
  .showcase.rev .stext{order:0}
  .ctaband{padding:40px 32px;flex-direction:column;align-items:flex-start}
  section.block{padding:64px 0}
  .float-badge{display:none}
}

@media(max-width:640px){
  .growth-path{padding:88px 0 42px}
  .growth-wrap{width:min(100% - 32px,1500px)}
  .growth-heading h2{font-size:32px;line-height:1.28;letter-spacing:-.025em}
  .growth-stages{grid-template-columns:1fr}
  .growth-stage-card:nth-child(n){min-height:0;padding:20px;border-radius:18px}
  .growth-stage-head b{width:46px;height:46px;border-radius:13px;font-size:18px}
  .growth-stage-head h3{font-size:21px}
  .growth-stage-card p{margin-top:14px;font-size:14px}
  .growth-illustration{width:112%;max-width:none;margin-left:-6%;margin-top:18px}
  .why-lynxce{padding:84px 0 40px}
  .why-lynxce>h2{font-size:32px;padding:0 48px}
  .why-stage{width:100%;min-height:660px}
  .why-slide,.why-slide-skills{padding:0 34px;gap:24px}
  .why-copy h3{font-size:26px}.why-copy>p{font-size:14px;line-height:1.75}
  .why-eyebrow{font-size:13px;margin-bottom:14px}.why-cta{margin-top:20px}
  .why-platform-row{grid-template-columns:32px 1fr}.why-platform-row em{display:none}
  .why-platform-row small{white-space:normal}
}

/* ============================================================
   Download modal (popup)
   ============================================================ */
.dlmodal{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:24px}
.dlmodal[hidden]{display:none}
.dlmodal-backdrop{position:absolute;inset:0;background:rgba(12,16,32,.5);backdrop-filter:blur(6px);opacity:0;transition:opacity .22s var(--ease)}
.dlmodal.show .dlmodal-backdrop{opacity:1}
.dlmodal-card{position:relative;z-index:1;width:min(720px,100%);max-height:calc(100vh - 48px);overflow:auto;
  background:var(--bg-2);border:1px solid var(--line-2);border-radius:var(--r-xl);box-shadow:var(--shadow-lg);
  padding:30px 30px 26px;transform:translateY(14px) scale(.98);opacity:0;transition:transform .24s var(--ease-spring),opacity .2s var(--ease)}
.dlmodal.show .dlmodal-card{transform:none;opacity:1}
.dlmodal-x{position:absolute;top:16px;right:16px;width:34px;height:34px;border-radius:10px;border:1px solid var(--line);
  background:var(--bg-pale);color:var(--muted);display:grid;place-items:center;cursor:pointer;transition:.18s}
.dlmodal-x:hover{color:var(--ink);border-color:var(--line-2);background:var(--bg-2)}
.dlmodal-x svg{width:17px;height:17px}
.dlmodal-head{display:flex;align-items:center;gap:14px;margin-bottom:22px;padding-right:36px}
.dlmodal-logo{width:46px;height:46px;flex-shrink:0;border-radius:13px;display:grid;place-items:center;background:var(--grad-soft);border:1px solid var(--line)}
.dlmodal-logo img{width:28px;height:28px}
.dlmodal-head h3{font-family:var(--font-d);font-size:20px;font-weight:850;letter-spacing:-.01em}
.dlmodal-head p{color:var(--muted);font-size:13.5px;margin-top:4px;line-height:1.55}
.dlmodal .dlcard{max-width:none;margin:0;box-shadow:none;border-radius:var(--r-lg)}
.dlmodal .macos-help,.dlmodal .dlhint{max-width:none;text-align:left}
.dlmodal .dlhint{text-align:center;margin-top:16px}

/* ============================================================
   Inner pages (blog / changelog / detail)
   ============================================================ */
.page-hero{position:relative;overflow:hidden;padding:72px 0 30px;text-align:center}
.page-hero .hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.page-hero>.wrap{position:relative;z-index:1}
.page-hero .eyebrow{margin-bottom:16px}
.page-hero h1{font-family:var(--font-d);font-size:clamp(32px,5vw,52px);font-weight:850;letter-spacing:-.02em;line-height:1.1}
.page-hero p{margin:14px auto 0;max-width:580px;color:var(--muted);font-size:clamp(15px,1.6vw,18px)}

main.page{padding:30px 0 30px;min-height:46vh}

/* category tabs */
.cat-tabs{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin:6px 0 34px}
.cat-tab{padding:8px 18px;border-radius:var(--r-pill);border:1px solid var(--line-2);background:var(--bg-2);color:var(--ink-2);
  cursor:pointer;font-size:13.5px;font-weight:600;transition:.18s var(--ease)}
.cat-tab:hover{border-color:color-mix(in srgb,var(--b1) 40%,var(--line-2));color:var(--b2)}
.cat-tab.active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 6px 16px rgba(91,108,239,.28)}

/* blog grid */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;max-width:1060px;margin:0 auto}
.blog-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);display:flex;flex-direction:column}
.blog-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:color-mix(in srgb,var(--b1) 28%,var(--line))}
.blog-card .cover{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--grad-soft);display:block}
.blog-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:9px;flex:1}
.blog-card .cat{align-self:flex-start;font-size:11.5px;font-weight:650;color:var(--b2);background:var(--grad-soft);border-radius:var(--r-pill);padding:3px 11px}
.blog-card h3{font-family:var(--font-d);font-size:17px;font-weight:800;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.blog-card p{color:var(--muted);font-size:13.5px;line-height:1.65;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.blog-card .meta{display:flex;justify-content:space-between;color:var(--faint);font-size:12px;margin-top:4px}
.state{text-align:center;color:var(--muted);padding:60px 0;font-size:15px}
.morebtn,.retrybtn{cursor:pointer;border:1px solid var(--line-2);background:var(--bg-2);color:var(--ink-2);
  border-radius:var(--r-pill);padding:11px 26px;font-size:14px;font-weight:650;font-family:inherit;transition:.18s}
.morebtn:hover,.retrybtn:hover{border-color:var(--b2);color:var(--b2);transform:translateY(-1px)}

/* changelog */
.cl-list{max-width:840px;margin:0 auto}
.cl-item{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px 28px;margin-bottom:18px;
  box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s}
.cl-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:color-mix(in srgb,var(--b1) 24%,var(--line))}
.cl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:4px}
.cl-ver{font-family:var(--font-d);font-size:22px;font-weight:850;letter-spacing:-.01em}
.cl-ver::before{content:"";display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--grad);margin-right:9px;vertical-align:middle}
.cl-date{color:var(--muted);font-size:13.5px}
.cl-badge{font-size:11.5px;font-weight:700;border-radius:var(--r-pill);padding:3px 11px;background:var(--grad-soft);color:var(--b2)}
.cl-badge.req{background:#fff1f0;color:#d4380d;border:1px solid #ffd6d2}
.cl-badge.beta{background:#f9f0ff;color:#722ed1;border:1px solid #efdbff}
.cl-plats{display:flex;gap:6px;flex-wrap:wrap;margin-left:auto}
.cl-plat{font-size:11.5px;color:var(--ink-2);background:var(--bg-pale);border:1px solid var(--line);border-radius:var(--r-pill);padding:3px 11px}
.cl-notes{margin:14px 0 0;padding-left:20px;color:var(--ink-2);font-size:14.5px}
.cl-notes li{margin:7px 0}
.cl-notes li::marker{color:var(--b2)}

/* article detail */
.article{max-width:760px;margin:0 auto}
.backlink{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:14px;font-weight:550;margin-bottom:20px;transition:color .18s}
.backlink:hover{color:var(--b2)}
.article h1{font-family:var(--font-d);font-size:clamp(26px,4vw,40px);font-weight:850;line-height:1.22;letter-spacing:-.01em}
.a-meta{color:var(--muted);font-size:14px;margin:16px 0 28px;display:flex;gap:14px;align-items:center;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:20px}
.a-meta .cat{font-size:12px;font-weight:650;color:var(--b2);background:var(--grad-soft);border-radius:var(--r-pill);padding:3px 12px}
.content{font-size:16.5px;line-height:1.9;color:var(--ink-2)}
.content img{max-width:100%;border-radius:12px;margin:.6em 0}
.content h1,.content h2,.content h3{color:var(--ink);font-family:var(--font-d);font-weight:800;margin:1.4em 0 .5em;line-height:1.35}
.content h2{font-size:24px}.content h3{font-size:19px}
.content p{margin:0 0 1.1em}
.content pre{background:var(--ink-dark);color:#cfe3ff;border-radius:12px;padding:16px;overflow-x:auto;font-family:var(--mono);font-size:13.5px;margin:0 0 1.1em}
.content code{font-family:var(--mono)}
.content blockquote{border-left:3px solid var(--b2);padding:6px 0 6px 16px;color:var(--muted);margin:1.2em 0;background:var(--bg-pale);border-radius:0 10px 10px 0}
.content ul,.content ol{padding-left:1.5em;margin:0 0 1.1em}
.content a{color:var(--b2);text-decoration:underline}
.content table{border-collapse:collapse;width:100%;margin:1.2em 0;font-size:15px}
.content td,.content th{border:1px solid var(--line-2);padding:9px 13px;text-align:left;vertical-align:top}
.content th{background:var(--bg-pale);font-weight:700;color:var(--ink)}
/* 后台富文本内容里的提示框 / CTA 按钮(博客与文档正文复用) */
.content .blog-note{border-left:3px solid var(--b1);background:var(--bg-pale);border-radius:0 12px 12px 0;padding:13px 17px;color:var(--ink-2);margin:1.3em 0}
.content .blog-note p{margin:0}
.content .blog-cta{margin:1.8em 0 .4em}
.content .blog-cta a{display:inline-block;background:var(--grad);color:#fff;text-decoration:none;font-weight:700;padding:12px 26px;border-radius:var(--r-md,12px);box-shadow:var(--shadow-md)}
.content .blog-cta a:hover{filter:brightness(1.05)}

/* 博客列表页码分页 */
#loadMore{max-width:1060px;margin:34px auto 0}
.pager{display:flex;gap:8px;justify-content:center;align-items:center;flex-wrap:wrap}
.pager button{cursor:pointer;border:1px solid var(--line);background:var(--card);color:var(--ink-2);border-radius:10px;min-width:40px;height:40px;padding:0 13px;font-size:14px;font-weight:650;transition:.15s var(--ease)}
.pager button:hover:not(:disabled){border-color:color-mix(in srgb,var(--b1) 40%,var(--line));color:var(--b2)}
.pager .pg-num.active{background:var(--grad);border-color:transparent;color:#fff}
.pager button:disabled{opacity:.45;cursor:not-allowed}
.pager .pg-gap{color:var(--faint);padding:0 2px}

/* slim footer for inner pages */
.foot-slim{background:var(--ink-dark);color:#aeb6d6;margin-top:56px;padding:40px 0 30px;font-size:13.5px}
.foot-slim .fb{display:flex;align-items:center;justify-content:center;gap:11px;color:#fff;font-weight:800;font-size:17px;margin-bottom:16px;font-family:var(--font-d)}
.foot-slim .fb img{width:26px;height:26px}
.foot-slim .foot-bottom{color:#6a7088;display:flex;gap:18px;flex-wrap:wrap;align-items:center;justify-content:center;text-align:center}
.foot-slim .foot-bottom a:hover{color:#fff}

@media(max-width:880px){
  .blog-grid{grid-template-columns:1fr;max-width:440px}
  .dlmodal-card{padding:22px 20px}
}

/* ============================================================
   Navigation Enhancements — site.js injected
   返回顶部 · 进度条 · 暗色切换 · 下载优化 · 版本横幅 · 交互组件
   ============================================================ */

/* ---- Back to top ---- */
.back-to-top{
  position:fixed;bottom:32px;right:32px;z-index:90;
  width:46px;height:46px;border-radius:50%;
  background:var(--grad);color:#fff;border:none;
  box-shadow:0 6px 20px rgba(91,108,239,.35);
  cursor:pointer;display:grid;place-items:center;
  transform:translateY(20px) scale(.8);opacity:0;
  transition:transform .26s var(--ease),opacity .2s var(--ease),box-shadow .2s;
  pointer-events:none
}
.back-to-top.show{transform:none;opacity:1;pointer-events:auto}
.back-to-top:hover{box-shadow:0 10px 30px rgba(91,108,239,.5);transform:translateY(-2px)}
.back-to-top svg{width:22px;height:22px}
body.has-support-float .back-to-top{bottom:100px}

/* ---- Support floating button ---- */
.support-float{
  position:fixed;right:28px;bottom:28px;z-index:180;
  display:flex;flex-direction:column;align-items:flex-end;gap:12px;
  pointer-events:none
}
.support-float>*{pointer-events:auto}
.support-float-button{
  height:52px;border:0;border-radius:16px;padding:0 18px;
  display:flex;align-items:center;gap:9px;cursor:pointer;
  color:#fff;background:var(--grad);
  font:700 14px/1 var(--font);
  box-shadow:0 16px 34px rgba(59,130,246,.30),0 5px 16px rgba(91,108,239,.22);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease)
}
.support-float-button:hover{transform:translateY(-2px);box-shadow:0 20px 42px rgba(59,130,246,.36),0 7px 18px rgba(91,108,239,.28)}
.support-float-button svg{width:19px;height:19px;flex-shrink:0}
.support-float-panel{
  width:min(372px,calc(100vw - 32px));border:1px solid rgba(177,186,208,.55);
  background:rgba(255,255,255,.94);backdrop-filter:blur(18px) saturate(1.35);
  border-radius:18px;box-shadow:0 24px 70px rgba(15,23,42,.20),0 8px 24px rgba(91,108,239,.12);
  overflow:hidden;opacity:0;transform:translateY(10px) scale(.98);
  transition:opacity .18s var(--ease),transform .18s var(--ease)
}
.support-float.open .support-float-panel{opacity:1;transform:none}
.support-float-head{
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:18px 18px 14px;border-bottom:1px solid var(--line);
  background:linear-gradient(135deg,rgba(123,97,255,.10),rgba(34,211,238,.08))
}
.support-float-kicker{
  display:block;margin-bottom:4px;font-size:11px;font-weight:800;letter-spacing:.08em;
  text-transform:uppercase;color:var(--b2)
}
.support-float-head h2{font-size:20px;line-height:1.25;margin:0;color:var(--ink);letter-spacing:0}
.support-float-close{
  width:32px;height:32px;border:1px solid var(--line);border-radius:10px;background:var(--bg-2);
  color:var(--muted);display:grid;place-items:center;cursor:pointer;transition:.15s var(--ease);flex-shrink:0
}
.support-float-close:hover{color:var(--ink);border-color:var(--line-2);transform:translateY(-1px)}
.support-float-close svg{width:16px;height:16px}
.support-float-content{padding:16px}
.support-float-loading,.support-float-error{
  min-height:120px;display:grid;place-items:center;text-align:center;
  color:var(--muted);font-size:14px;line-height:1.6
}
.support-float-error{color:#dc2626}
.support-float-body{display:grid;grid-template-columns:116px 1fr;gap:14px;align-items:start}
.support-float-qr{
  border:1px solid var(--line);border-radius:14px;background:#fff;padding:10px;
  display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center
}
.support-float-qr img{width:94px;height:94px;object-fit:contain;border-radius:8px}
.support-float-qr span{font-size:12px;line-height:1.35;color:var(--muted)}
.support-float-info{min-width:0;display:flex;flex-direction:column;gap:8px}
.support-float-info p{margin:0 0 2px;color:var(--ink-2);font-size:13.5px;line-height:1.55}
.support-float-row{
  width:100%;min-height:38px;border:1px solid var(--line);border-radius:11px;
  background:rgba(255,255,255,.78);color:var(--ink-2);
  display:flex;align-items:center;gap:9px;padding:8px 10px;
  font:600 13px/1.35 var(--font);text-align:left;cursor:pointer;transition:.15s var(--ease)
}
.support-float-row:hover{border-color:rgba(59,130,246,.35);background:var(--grad-soft);color:var(--ink)}
.support-float-row-icon{width:20px;height:20px;border-radius:7px;display:grid;place-items:center;color:var(--b2);background:rgba(59,130,246,.10);flex-shrink:0}
.support-float-row-icon svg{width:14px;height:14px}
.support-float-phone-list{display:flex;flex-direction:column;gap:8px}
.support-toast{
  position:fixed;right:28px;bottom:92px;z-index:220;
  padding:10px 14px;border-radius:12px;background:rgba(15,23,42,.92);color:#fff;
  font:650 13px/1.3 var(--font);box-shadow:0 12px 28px rgba(15,23,42,.25);
  opacity:0;transform:translateY(8px);transition:.2s var(--ease);pointer-events:none
}
.support-toast.show{opacity:1;transform:none}

/* ---- Page progress bar ---- */
.page-progress{
  position:fixed;top:0;left:0;right:0;z-index:999;
  height:3px;background:transparent;overflow:hidden
}
.page-progress.done{opacity:0;transition:opacity .35s}
.page-progress-inner{
  height:100%;width:0%;
  background:var(--grad);
  transition:width .15s linear;
  border-radius:0 2px 2px 0
}

/* ---- Dark mode toggle ---- */
.dark-toggle{
  width:36px;height:36px;background:transparent;border:1px solid var(--line-2);
  border-radius:50%;color:var(--ink-2);cursor:pointer;display:grid;place-items:center;
  transition:.2s;padding:0
}
.dark-toggle:hover{border-color:var(--b2);color:var(--b2)}
.dark-toggle svg{width:17px;height:17px}

/* ---- Download progress ---- */
.dl-progress-overlay{
  position:fixed;inset:0;z-index:300;
  background:rgba(12,16,32,.45);backdrop-filter:blur(4px);
  display:grid;place-items:center;
  animation:fadeIn .2s var(--ease) both
}
.dl-progress-overlay.done{opacity:0;transition:opacity .35s}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.dl-progress-card{
  background:var(--bg-2);border:1px solid var(--line-2);
  border-radius:var(--r-lg);box-shadow:var(--shadow-lg);
  padding:28px 32px;width:min(380px,88vw);text-align:center
}
.dl-progress-head{
  font-family:var(--font-d);font-size:17px;font-weight:800;
  color:var(--ink);margin-bottom:16px
}
.dl-progress-track{
  height:6px;background:var(--bg-pale);border-radius:3px;
  overflow:hidden;margin-bottom:10px
}
.dl-progress-fill{
  height:100%;width:0%;background:var(--grad);
  border-radius:3px;transition:width .15s ease
}
.dl-progress-pct{
  font-size:28px;font-weight:800;color:var(--b2);
  font-family:var(--font-d);margin-bottom:6px
}
.dl-progress-extra{font-size:12.5px;color:var(--muted)}

/* ---- OS badge ---- */
.dlbtn.dlbtn-os{
  box-shadow:0 0 0 2px var(--b2),0 8px 18px rgba(91,108,239,.3)
}
.os-badge{
  display:inline-block;font-size:10px;font-weight:700;
  background:var(--grad);color:#fff;border-radius:4px;
  padding:1px 6px;margin-left:6px;vertical-align:middle
}

/* ---- Version banner ---- */
.ver-banner{
  position:relative;z-index:99;
  background:linear-gradient(135deg,#7b61ff 0%,#3b82f6 100%);
  color:#fff;font-size:13.5px;
  animation:bannerSlide .35s var(--ease) both
}
.ver-banner-hide{transform:translateY(-100%);transition:transform .3s var(--ease)}
@keyframes bannerSlide{from{transform:translateY(-100%)}to{transform:none}}
.ver-banner-inner{
  display:flex;align-items:center;gap:12px;
  width:min(1180px,94%);margin:0 auto;
  padding:12px 0;flex-wrap:wrap
}
.ver-banner-icon{font-size:20px}
.ver-banner b{font-weight:700}
.ver-banner-link{
  margin-left:auto;color:#fff;font-weight:650;
  text-decoration:underline;text-underline-offset:3px;
  white-space:nowrap
}
.ver-banner-close{
  width:28px;height:28px;background:rgba(255,255,255,.15);
  border-radius:50%;border:none;color:#fff;cursor:pointer;
  display:grid;place-items:center;flex-shrink:0;transition:.15s
}
.ver-banner-close:hover{background:rgba(255,255,255,.3)}
.ver-banner-close svg{width:14px;height:14px}

/* ---- Video preview strip (components.js) ---- */
.vid-preview-strip{
  position:absolute;bottom:8px;right:8px;z-index:5;
  background:rgba(8,10,18,.7);backdrop-filter:blur(6px);
  border-radius:10px;padding:8px 10px;
  opacity:0;transform:translateY(6px);
  transition:opacity .2s var(--ease),transform .2s var(--ease);
  pointer-events:none
}
.vid-preview-strip.show{opacity:1;transform:none;pointer-events:auto}
.vps-label{
  display:block;font-size:9.5px;font-weight:700;letter-spacing:.06em;
  text-transform:uppercase;color:rgba(255,255,255,.55);margin-bottom:5px
}
.vps-thumbs{display:flex;gap:5px}
.vps-thumb{
  width:54px;height:32px;border-radius:5px;
  border:1px solid rgba(255,255,255,.15);
  cursor:pointer;overflow:hidden;
  transition:border-color .15s,transform .15s;
  background:var(--ink-dark)
}
.vps-thumb:hover{border-color:var(--b2);transform:scale(1.08)}
.vps-thumb:focus-visible{outline:2px solid var(--b2);outline-offset:2px}
.vidframe{position:relative}

/* ---- Feature matrix highlight (components.js) ---- */
.fcell-dim{opacity:.55;transition:opacity .25s var(--ease)}
.fcell-featured{position:relative;overflow:visible}
.fcell-badge{
  position:absolute;top:-8px;right:-8px;
  background:var(--grad);color:#fff;
  font-size:10px;font-weight:700;padding:2px 8px;
  border-radius:6px;box-shadow:0 2px 8px rgba(91,108,239,.35);
  z-index:2;white-space:nowrap
}

/* ---- Card interaction (components.js) ---- */
.blog-card .body p.expandable{cursor:pointer;position:relative}
.blog-card .body p.expandable::after{
  content:"… 展开";color:var(--b2);font-weight:600;font-size:12px
}
.blog-card .body p.expandable.expanded::after{content:"░ 收起"}
.blog-card .body p.expandable.expanded{-webkit-line-clamp:unset;overflow:visible}

/* ---- Reduced motion overrides ---- */
@media (prefers-reduced-motion: reduce){
  .back-to-top{transition:none}
  .support-float-button,.support-float-panel,.support-toast{transition:none}
  .page-progress-inner{transition:none}
  .dl-progress-fill{transition:none}
  .dl-progress-overlay{animation:none}
  .ver-banner{animation:none;transform:none}
  .ver-banner-hide{transform:none;transition:none}
  .vps-thumb{transition:none}
  .fcell-dim{transition:none}
  .back-to-top.show{transform:none}
}

@media(max-width:640px){
  .support-float{right:16px;bottom:18px}
  .support-float-button{height:48px;border-radius:15px;padding:0 16px}
  body.has-support-float .back-to-top{bottom:88px;right:16px}
  .support-float-panel{width:calc(100vw - 32px);border-radius:16px}
  .support-float-body{grid-template-columns:1fr}
  .support-float-qr{flex-direction:row;justify-content:flex-start;text-align:left}
  .support-float-qr img{width:82px;height:82px}
  .support-toast{right:16px;bottom:82px}
}

/* ---- Skip link ---- */
.skip-link{
  position:fixed;top:auto;left:-10000px;z-index:500;
  width:1px;height:1px;overflow:hidden;
  background:var(--bg-2);color:var(--ink);
  padding:12px 20px;border-radius:0 0 12px 12px;
  font-size:14px;font-weight:700;box-shadow:var(--shadow-md);
  border:1px solid var(--line-2);border-top:none;
  opacity:0;pointer-events:none;
  transition:opacity .18s var(--ease),transform .18s var(--ease)
}
.skip-link:focus,.skip-link:focus-visible{
  top:0;left:16px;width:auto;height:auto;overflow:visible;
  opacity:1;pointer-events:auto;transform:none
}

/* ---- Focus visible ---- */
:focus-visible{
  outline:2px solid var(--b2);
  outline-offset:2px;
  border-radius:4px
}
button:focus-visible{outline-offset:1px}
a:focus-visible{outline-offset:2px}

/* ---- Section nav highlight ---- */
.nav-links a.active-section::after{right:0}
.nav-links a.active-section{color:var(--ink);font-weight:650}

/* ===== 产品功能四页下拉导航 ===== */
.nav-product{position:relative;display:flex;align-items:center}
.nav-product-trigger{display:inline-flex;align-items:center;gap:7px;border:0;background:transparent;font:inherit;color:inherit;cursor:pointer}
.nav-product-trigger::before{content:"";order:2;width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:translateY(-2px) rotate(45deg);transition:transform .2s var(--ease)}
.nav-product:hover .nav-product-trigger::before,.nav-product:focus-within .nav-product-trigger::before,.nav-product.is-open .nav-product-trigger::before{transform:translateY(2px) rotate(225deg)}
.nav-product-list{
  position:absolute;
  top:calc(100% + 18px);
  left:50%;
  z-index:120;
  width:390px;
  padding:14px;
  border:1px solid rgba(199,211,228,.9);
  border-radius:20px;
  background:rgba(255,255,255,.97);
  box-shadow:0 26px 68px rgba(26,49,86,.18);
  backdrop-filter:blur(18px) saturate(1.2);
  opacity:0;
  visibility:hidden;
  transform:translate(-50%,-10px);
  pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.nav-product-list::before{content:"";position:absolute;left:0;right:0;top:-20px;height:22px}
.nav-product:hover>.nav-product-list,.nav-product:focus-within>.nav-product-list,.nav-product.is-open>.nav-product-list{opacity:1;visibility:visible;transform:translate(-50%,0);pointer-events:auto}
.nav-links .nav-product-item{
  display:block;
  padding:14px 15px;
  border-radius:12px;
  color:var(--ink);
  transition:background .18s var(--ease),transform .18s var(--ease);
}
.nav-links .nav-product-item::after{display:none}
.nav-links .nav-product-item:hover,.nav-links .nav-product-item:focus-visible,.nav-links .nav-product-item.is-current{color:var(--ink);background:linear-gradient(135deg,rgba(239,246,255,.98),rgba(246,249,255,.98));transform:translateX(2px)}
.nav-product-item strong{display:block;margin-bottom:5px;font-size:15px;line-height:1.35;font-weight:720}
.nav-product-item span{display:block;color:var(--muted);font-size:12.5px;line-height:1.55;font-weight:450}
.nav-product-item.is-current strong{color:var(--b2)}
.nav-product-mobile{display:block;border-bottom:1px solid var(--line)}
.navdrawer-links .nav-product-mobile>.nav-product-trigger{width:100%;justify-content:space-between;padding:14px 6px;border:0;border-bottom:0;color:var(--ink);font-size:16px;text-align:left;background:transparent}
.navdrawer-links .nav-product-mobile>.nav-product-trigger::before{margin-left:auto;margin-right:5px}
.nav-product-list-mobile{
  position:static;
  width:auto;
  max-height:0;
  padding:0 7px;
  border:0;
  border-radius:0;
  box-shadow:none;
  background:transparent;
  opacity:1;
  visibility:visible;
  transform:none;
  overflow:hidden;
  pointer-events:auto;
  transition:max-height .28s var(--ease),padding .28s var(--ease);
}
.nav-product-mobile.is-open>.nav-product-list-mobile{max-height:430px;padding:0 7px 10px}
.nav-product-mobile:hover>.nav-product-list-mobile,.nav-product-mobile:focus-within>.nav-product-list-mobile,.nav-product-mobile.is-open>.nav-product-list-mobile{transform:none}
.navdrawer-links .nav-product-item{padding:11px 10px;border:0;border-radius:10px;background:var(--bg-pale)}
.navdrawer-links .nav-product-item+.nav-product-item{margin-top:6px}
.navdrawer-links .nav-product-item strong{font-size:14px}
.navdrawer-links .nav-product-item span{font-size:11.5px}

@media(max-width:880px){
  .nav-product-list:not(.nav-product-list-mobile){display:none}
}

@media(prefers-reduced-motion:reduce){
  .nav-product-list,.nav-product-trigger::before,.nav-product-list-mobile{transition:none}
}

/* ============================================================
   Docs page
   ============================================================ */
.docs-layout{display:grid;grid-template-columns:228px 1fr;gap:52px;max-width:1080px;margin:0 auto;align-items:start}
.docs-toc{position:sticky;top:92px;display:flex;flex-direction:column;gap:2px}
.docs-toc .toc-lbl{font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);padding:4px 12px 8px}
.docs-toc a{padding:8px 13px;border-radius:9px;color:var(--ink-2);font-size:14px;font-weight:550;transition:.16s var(--ease);border-left:2px solid transparent;display:block}
.docs-toc a:hover{background:var(--bg-pale);color:var(--ink)}
.docs-toc a.active{color:var(--b2);background:var(--grad-soft);font-weight:650;border-left-color:var(--b2)}
.docs-main{min-width:0}
.docs-sec{scroll-margin-top:92px;margin-bottom:8px}
.docs-sec:not(:first-child){border-top:1px solid var(--line);padding-top:34px;margin-top:34px}
.docs-step{display:flex;gap:14px;align-items:flex-start;margin:0 0 16px}
.docs-step .n{width:28px;height:28px;flex-shrink:0;border-radius:9px;display:grid;place-items:center;font-size:13px;font-weight:750;color:#fff;background:var(--grad);box-shadow:0 4px 12px rgba(91,108,239,.28)}
.docs-step .sx b{display:block;font-size:15.5px;font-weight:700;margin-bottom:2px;color:var(--ink)}
.docs-step .sx span{font-size:14.5px;color:var(--muted);line-height:1.7}
.docs-callout{border:1px solid var(--line);background:var(--bg-pale);border-radius:var(--r-md);padding:14px 18px;margin:18px 0;font-size:14.5px;color:var(--ink-2);line-height:1.7}
.docs-callout b{color:var(--ink)}
.docs-faq{border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.docs-faq details{border-bottom:1px solid var(--line)}
.docs-faq details:last-child{border-bottom:0}
.docs-faq summary{padding:15px 18px;font-size:15px;font-weight:650;color:var(--ink);cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:12px}
.docs-faq summary::-webkit-details-marker{display:none}
.docs-faq summary::after{content:"+";font-size:20px;color:var(--faint);font-weight:400;transition:transform .2s}
.docs-faq details[open] summary::after{transform:rotate(45deg)}
.docs-faq .faq-body{padding:0 18px 16px;font-size:14.5px;color:var(--muted);line-height:1.75}
@media(max-width:880px){
  .docs-layout{grid-template-columns:1fr;gap:24px}
  .docs-toc{position:static;flex-direction:row;flex-wrap:wrap;gap:6px;border-bottom:1px solid var(--line);padding-bottom:14px}
  .docs-toc .toc-lbl{display:none}
  .docs-toc a{border-left:0;font-size:13px;padding:6px 12px;background:var(--bg-pale)}
}

/* ============================================================
   Docs — product-manual layout (3 columns)
   ============================================================ */
.man-bar{position:sticky;top:68px;z-index:40;background:rgba(250,251,252,.9);backdrop-filter:blur(12px) saturate(1.4);border-bottom:1px solid var(--line)}
.man-bar-in{display:flex;align-items:center;gap:16px;height:54px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);min-width:0}
.crumb a:hover{color:var(--b2)}
.crumb .sep{color:var(--faint)}
.crumb .cur{color:var(--ink);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.man-search{margin-left:auto;position:relative;width:min(280px,42vw)}
.man-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--faint)}
.man-search input{width:100%;border:1px solid var(--line-2);background:var(--bg-2);border-radius:var(--r-pill);
  padding:8px 14px 8px 36px;font-size:13.5px;color:var(--ink);font-family:inherit;outline:none;transition:.16s}
.man-search input:focus{border-color:var(--b2);box-shadow:0 0 0 3px rgba(59,130,246,.12)}
.man-search input::placeholder{color:var(--faint)}

.man-layout{display:grid;grid-template-columns:240px minmax(0,1fr) 210px;gap:44px;
  width:min(1240px,94%);margin:0 auto;padding:36px 0 64px;align-items:start}

/* left doc tree */
.man-tree{position:sticky;top:140px;max-height:calc(100vh - 160px);overflow-y:auto;padding-right:6px}
.tree-group{margin-bottom:18px}
.tree-title{display:flex;align-items:center;gap:7px;font-size:11.5px;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--faint);padding:4px 10px 8px;cursor:pointer;user-select:none}
.tree-title svg{width:13px;height:13px;transition:transform .18s;margin-left:auto}
.tree-group.collapsed .tree-title svg{transform:rotate(-90deg)}
.tree-links{display:flex;flex-direction:column;gap:1px;overflow:hidden}
.tree-group.collapsed .tree-links{display:none}
.tree-link{padding:7px 12px;border-radius:8px;color:var(--ink-2);font-size:13.5px;font-weight:500;
  cursor:pointer;transition:.14s var(--ease);border-left:2px solid transparent}
.tree-link:hover{background:var(--bg-pale);color:var(--ink)}
.tree-link.active{color:var(--b2);background:var(--grad-soft);font-weight:650;border-left-color:var(--b2)}
.tree-empty{padding:10px 12px;color:var(--faint);font-size:13px}

/* center content */
.man-main{min-width:0}
.man-main .doc-kicker{font-size:12.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--b2);margin-bottom:10px}
.man-main>h1{font-family:var(--font-d);font-size:clamp(28px,3.4vw,38px);font-weight:850;letter-spacing:-.02em;margin-bottom:8px}
.man-main>.lede{color:var(--muted);font-size:16px;margin-bottom:8px;line-height:1.7}
.man-sec{scroll-margin-top:140px}
.man-sec:not(:first-of-type){border-top:1px solid var(--line);padding-top:32px;margin-top:34px}
.man-pager{display:flex;justify-content:space-between;gap:16px;margin-top:46px;border-top:1px solid var(--line);padding-top:26px}
.man-pager a{flex:1;border:1px solid var(--line);border-radius:var(--r-md);padding:14px 18px;transition:.18s;max-width:48%}
.man-pager a:hover{border-color:color-mix(in srgb,var(--b1) 34%,var(--line));transform:translateY(-2px)}
.man-pager .dir{font-size:12px;color:var(--faint);font-weight:600}
.man-pager .ttl{font-size:15px;font-weight:700;color:var(--ink);margin-top:3px}
.man-pager .next{text-align:right;margin-left:auto}

/* right on-page TOC */
.man-aside{position:sticky;top:140px;max-height:calc(100vh - 160px);overflow-y:auto}
.man-aside .a-lbl{font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);padding:0 0 10px;border-bottom:1px solid var(--line);margin-bottom:8px}
.man-aside a{display:block;padding:5px 0 5px 12px;font-size:13px;color:var(--muted);border-left:2px solid var(--line);transition:.14s}
.man-aside a.sub{padding-left:24px;font-size:12.5px}
.man-aside a:hover{color:var(--ink)}
.man-aside a.active{color:var(--b2);border-left-color:var(--b2);font-weight:600}

@media(max-width:1080px){
  .man-layout{grid-template-columns:230px minmax(0,1fr);gap:36px}
  .man-aside{display:none}
}
@media(max-width:880px){
  .man-layout{grid-template-columns:1fr;gap:0}
  .man-tree{position:static;max-height:none;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:20px}
  .man-search{width:200px}
  .man-pager a{max-width:48%}
}