/* =========================================================
   Aurora Studio / Gradient Prism — WPS Office Download Site
   Palette: Pearl #fbfbfb / Indigo #4f46e5 / Rose #e11d48 /
            Mint #10b981 / Amber #f59e0b / Ink #0b1026
   Usage: /site/wps/wps3
   ========================================================= */

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Roboto,sans-serif;
  font-size:15px;
  line-height:1.65;
  color:#1a1a2e;
  background:#fbfbfb;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:0;cursor:pointer;background:transparent}
table{border-collapse:collapse}

@keyframes spin{from{transform:rotate(0)}to{transform:rotate(360deg)}}
@keyframes aurora-pulse{0%,100%{opacity:.85}50%{opacity:1}}
@keyframes band-drift{0%{background-position:0 0}100%{background-position:800px 0}}
@keyframes float-slow{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

.wrap{max-width:1200px;margin:0 auto;padding:0 20px}

/* ============ NAVBAR ============ */
.au-nav{
  position:sticky;top:0;z-index:90;
  background:rgba(251,251,251,.85);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid rgba(79,70,229,.08);
}
.au-nav-inner{max-width:1200px;margin:0 auto;padding:16px 20px;display:flex;align-items:center;gap:28px}
.au-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:#0b1026;letter-spacing:-.3px}
.au-nav-mark{
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,#4f46e5 0%,#e11d48 55%,#f59e0b 100%);
  display:inline-flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:14px;
  box-shadow:0 6px 16px rgba(79,70,229,.28);
}
.au-nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.au-nav-link{
  position:relative;padding:8px 14px;border-radius:8px;
  font-size:14.5px;font-weight:600;color:#4c4c68;
  transition:color .18s ease,background .18s ease;
}
.au-nav-link:hover{color:#0b1026;background:rgba(79,70,229,.06)}
.au-nav-link.current{color:#0b1026}
.au-nav-link.current::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-18px;height:3px;
  background:linear-gradient(90deg,#4f46e5 0%,#e11d48 50%,#f59e0b 100%);
  border-radius:3px 3px 0 0;
}
.au-nav-cta{margin-left:6px}
.au-nav-mob{display:none;margin-left:auto;width:40px;height:40px;border-radius:8px;color:#0b1026;background:rgba(79,70,229,.08)}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:14.5px;font-weight:700;letter-spacing:-.1px;
  padding:11px 20px;border-radius:10px;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  border:1.5px solid transparent;cursor:pointer;white-space:nowrap;
}
.btn-sm{padding:8px 14px;font-size:13px;border-radius:8px}
.btn-lg{padding:14px 26px;font-size:15.5px;border-radius:12px}
.btn-indigo{background:#4f46e5;color:#fff;box-shadow:0 8px 22px rgba(79,70,229,.28)}
.btn-indigo:hover{background:#4338ca;transform:translateY(-1px);box-shadow:0 12px 26px rgba(79,70,229,.36)}
.btn-rose{background:#e11d48;color:#fff;box-shadow:0 8px 22px rgba(225,29,72,.26)}
.btn-rose:hover{background:#be123c;transform:translateY(-1px)}
.btn-amber{background:#f59e0b;color:#1a1a2e;box-shadow:0 8px 22px rgba(245,158,11,.3)}
.btn-amber:hover{background:#d97706;color:#fff;transform:translateY(-1px)}
.btn-mint{background:#10b981;color:#fff;box-shadow:0 8px 22px rgba(16,185,129,.28)}
.btn-mint:hover{background:#059669;transform:translateY(-1px)}
.btn-outline{background:#fff;color:#0b1026;border-color:#d4d4dd}
.btn-outline:hover{border-color:#4f46e5;color:#4f46e5}
.btn-outline-w{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-outline-w:hover{background:rgba(255,255,255,.1);border-color:#fff}
.btn-white{background:#fff;color:#0b1026;border-color:#fff}
.btn-white:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(0,0,0,.15)}
.btn-ghost{background:transparent;color:#4f46e5}
.btn-ghost:hover{background:rgba(79,70,229,.08)}
.btn[disabled]{opacity:.75;cursor:not-allowed}

/* ============ SECTIONS ============ */
.section{padding:80px 0;background:#fbfbfb}
.section-pearl{background:#f7f5ff}
.section-dark{background:linear-gradient(180deg,#0b1026 0%,#1e1b4b 100%);color:#e7e5f9}
.section-dark2{background:#0b1026;color:#e7e5f9}
.section-aurora{background:linear-gradient(135deg,#4f46e5 0%,#e11d48 55%,#f59e0b 100%);color:#fff;position:relative;overflow:hidden}

.sec-head{max-width:720px;margin:0 auto 48px;text-align:center}
.sec-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.2px;text-transform:uppercase;
  margin-bottom:14px;
}
.sec-pill-indigo{background:rgba(79,70,229,.12);color:#4f46e5}
.sec-pill-rose{background:rgba(225,29,72,.12);color:#e11d48}
.sec-pill-mint{background:rgba(16,185,129,.14);color:#047857}
.sec-pill-amber{background:rgba(245,158,11,.16);color:#b45309}
.sec-pill-white{background:rgba(255,255,255,.16);color:#fff}
.sec-pill-dot{width:7px;height:7px;border-radius:50%;background:currentColor}
.sec-h2{font-size:36px;line-height:1.15;font-weight:800;color:#0b1026;margin:0 0 14px;letter-spacing:-.5px}
.sec-h2-light{color:#fff}
.sec-lead{font-size:15.5px;color:#52526f;margin:0}
.sec-lead-light{color:rgba(255,255,255,.82)}

/* ============ HERO (index) ============ */
.hero-aur{position:relative;padding:72px 0 90px;overflow:hidden;background:#fbfbfb}
.hero-aur::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(800px 400px at 12% 18%,rgba(79,70,229,.18),transparent 70%),
    radial-gradient(700px 380px at 88% 28%,rgba(225,29,72,.14),transparent 72%),
    radial-gradient(600px 320px at 52% 92%,rgba(245,158,11,.15),transparent 75%);
  z-index:0;
}
.hero-aur-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-aur-chip{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(79,70,229,.1);color:#4f46e5;font-weight:700;font-size:13px;
  padding:6px 14px;border-radius:999px;margin-bottom:20px;
}
.hero-aur-chip-dot{width:7px;height:7px;border-radius:50%;background:#4f46e5;animation:aurora-pulse 2s ease-in-out infinite}
.hero-aur-title{font-size:48px;line-height:1.1;font-weight:800;color:#0b1026;letter-spacing:-1px;margin:0 0 18px}
.hl-indigo{background:linear-gradient(90deg,#4f46e5 0%,#7c3aed 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hl-rose{background:linear-gradient(90deg,#e11d48 0%,#f59e0b 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hl-amber{color:#f59e0b}
.hero-aur-desc{font-size:16px;color:#4a4a64;margin:0 0 26px;max-width:540px}
.hero-aur-btns{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-aur-badges{display:flex;flex-wrap:wrap;gap:20px}
.hero-aur-badge{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:#4a4a64;font-weight:600}
.hero-aur-badge svg{color:#10b981;flex-shrink:0}

/* hero visual: isometric card stage */
.hero-aur-visual{position:relative;min-height:420px}
.hero-stage{
  position:relative;width:100%;height:420px;
  background:linear-gradient(135deg,#fff 0%,#f7f5ff 100%);
  border:1px solid rgba(79,70,229,.15);
  border-radius:22px;
  box-shadow:0 30px 60px -20px rgba(79,70,229,.18),0 10px 30px -10px rgba(225,29,72,.12);
  padding:22px;overflow:hidden;
}
.stg-band{
  position:absolute;inset:auto 0 0 0;height:160px;pointer-events:none;opacity:.5;
  background:
    linear-gradient(135deg,rgba(79,70,229,.18) 0%,rgba(225,29,72,.12) 50%,rgba(245,158,11,.14) 100%);
  filter:blur(18px);
}
.stg-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.stg-card{
  background:#fff;border:1px solid #eae8f5;border-radius:14px;padding:16px;
  box-shadow:0 10px 24px -8px rgba(11,16,38,.08);
  transition:transform .3s ease;
  animation:float-slow 5s ease-in-out infinite;
}
.stg-card:nth-child(2){animation-delay:.6s}
.stg-card:nth-child(3){animation-delay:1.2s}
.stg-card:nth-child(4){animation-delay:1.8s}
.stg-card:hover{transform:translateY(-4px)}
.stg-c-ico{width:38px;height:38px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;color:#fff;margin-bottom:10px}
.stg-c-writer .stg-c-ico{background:linear-gradient(135deg,#4f46e5,#7c3aed)}
.stg-c-sheet .stg-c-ico{background:linear-gradient(135deg,#10b981,#059669)}
.stg-c-slide .stg-c-ico{background:linear-gradient(135deg,#e11d48,#f43f5e)}
.stg-c-pdf .stg-c-ico{background:linear-gradient(135deg,#f59e0b,#d97706)}
.stg-c-name{font-size:14.5px;font-weight:700;color:#0b1026;margin:0 0 4px}
.stg-c-desc{font-size:12px;color:#6b6b86;margin:0 0 10px;line-height:1.5}
.stg-c-bars{display:flex;gap:4px;align-items:flex-end;height:28px}
.stg-c-bar{flex:1;border-radius:2px 2px 0 0;background:linear-gradient(to top,#4f46e5 0%,rgba(79,70,229,.3) 100%)}
.stg-c-sheet .stg-c-bar{background:linear-gradient(to top,#10b981 0%,rgba(16,185,129,.3) 100%)}
.stg-c-slide .stg-c-bar{background:linear-gradient(to top,#e11d48 0%,rgba(225,29,72,.3) 100%)}
.stg-c-pdf .stg-c-bar{background:linear-gradient(to top,#f59e0b 0%,rgba(245,158,11,.3) 100%)}
.stg-c-lines{display:flex;flex-direction:column;gap:5px}
.stg-c-line{height:5px;border-radius:3px;background:#e7e5f9}
.stg-c-line.w90{width:90%}
.stg-c-line.w75{width:75%}
.stg-c-line.w60{width:60%}
.stg-c-line.w50{width:50%}
.stg-c-line.hl{background:linear-gradient(90deg,#4f46e5,#e11d48)}

/* ============ STATS STRIP ============ */
.strip-stats{background:#0b1026;color:#fff;padding:32px 0}
.strip-stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.strip-stat-num{
  font-size:38px;font-weight:800;letter-spacing:-.5px;line-height:1;margin-bottom:6px;
  background:linear-gradient(90deg,#fff 0%,#c4b9fd 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.strip-stat-lbl{font-size:13px;color:rgba(255,255,255,.7);font-weight:500}

/* ============ FEATURE MATRIX ============ */
.feat-matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feat-cube{
  position:relative;background:#fff;border:1px solid #eceaf4;border-radius:16px;padding:24px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  overflow:hidden;
}
.feat-cube::before{
  content:"";position:absolute;top:0;right:0;width:56px;height:56px;
  background:linear-gradient(135deg,transparent 48%,currentColor 50%);
  opacity:0;transition:opacity .22s ease;color:#4f46e5;
}
.feat-cube:hover{transform:translateY(-4px);box-shadow:0 18px 40px -14px rgba(11,16,38,.12);border-color:transparent}
.feat-cube:hover::before{opacity:.16}
.feat-cube.fc-ind:hover::before{color:#4f46e5}
.feat-cube.fc-rose:hover::before{color:#e11d48}
.feat-cube.fc-mint:hover::before{color:#10b981}
.feat-cube.fc-amber:hover::before{color:#f59e0b}
.feat-cube.fc-sky:hover::before{color:#0284c7}
.feat-cube.fc-violet:hover::before{color:#7c3aed}
.feat-cube.fc-teal:hover::before{color:#0d9488}
.feat-cube.fc-pink:hover::before{color:#db2777}
.feat-cube-ico{
  width:44px;height:44px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;color:#fff;margin-bottom:14px;
}
.fci-ind{background:linear-gradient(135deg,#4f46e5,#6366f1)}
.fci-rose{background:linear-gradient(135deg,#e11d48,#f43f5e)}
.fci-mint{background:linear-gradient(135deg,#10b981,#34d399)}
.fci-amber{background:linear-gradient(135deg,#f59e0b,#fbbf24)}
.fci-sky{background:linear-gradient(135deg,#0284c7,#38bdf8)}
.fci-violet{background:linear-gradient(135deg,#7c3aed,#a78bfa)}
.fci-teal{background:linear-gradient(135deg,#0d9488,#2dd4bf)}
.fci-pink{background:linear-gradient(135deg,#db2777,#f472b6)}
.feat-cube-name{font-size:17px;font-weight:700;color:#0b1026;margin:0 0 8px}
.feat-cube-desc{font-size:13.5px;color:#52526f;margin:0;line-height:1.6}

/* ============ MODULE STACK (accordion stepper) ============ */
.mod-stack{display:flex;flex-direction:column;gap:14px;max-width:980px;margin:0 auto}
.mod-item{
  background:#fff;border:1px solid #eceaf4;border-radius:16px;overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.mod-item:hover{border-color:#d4d1f0}
.mod-item.expanded{border-color:transparent;box-shadow:0 16px 36px -12px rgba(11,16,38,.1)}
.mod-item-head{
  display:grid;grid-template-columns:56px 1fr auto;gap:18px;align-items:center;
  padding:22px 26px;cursor:pointer;user-select:none;
}
.mod-item-num{
  width:48px;height:48px;border-radius:12px;color:#fff;font-weight:800;font-size:18px;
  display:inline-flex;align-items:center;justify-content:center;
}
.min-ind{background:linear-gradient(135deg,#4f46e5,#6366f1)}
.min-mint{background:linear-gradient(135deg,#10b981,#34d399)}
.min-rose{background:linear-gradient(135deg,#e11d48,#f43f5e)}
.min-amber{background:linear-gradient(135deg,#f59e0b,#fbbf24)}
.mod-item-title{font-size:19px;font-weight:700;color:#0b1026;margin:0 0 3px}
.mod-item-sub{font-size:13.5px;color:#6b6b86;margin:0}
.mod-item-chev{
  width:36px;height:36px;border-radius:10px;background:#f4f1fb;color:#4f46e5;
  display:inline-flex;align-items:center;justify-content:center;transition:transform .28s ease,background .18s ease;
}
.mod-item.expanded .mod-item-chev{transform:rotate(180deg);background:#4f46e5;color:#fff}
.mod-item-body{max-height:0;overflow:hidden;transition:max-height .32s ease}
.mod-item.expanded .mod-item-body{max-height:640px}
.mod-item-body-inner{
  padding:0 26px 26px;
  display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center;
}
.mod-item-feats{display:flex;flex-direction:column;gap:10px}
.mod-item-feat{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#3a3a56;line-height:1.55}
.mod-item-feat-ico{flex-shrink:0;width:22px;height:22px;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;color:#fff;margin-top:1px}
.mff-ind{background:#4f46e5}.mff-mint{background:#10b981}.mff-rose{background:#e11d48}.mff-amber{background:#f59e0b}
.mod-item-visual{background:#f7f5ff;border-radius:14px;padding:22px}
.miv-bar-row{display:grid;grid-template-columns:78px 1fr 46px;gap:10px;align-items:center;margin-bottom:10px}
.miv-bar-label{font-size:12px;color:#6b6b86;font-weight:600}
.miv-bar-track{height:10px;background:#ece8f8;border-radius:999px;overflow:hidden}
.miv-bar-fill{height:100%;border-radius:999px}
.mvf-ind{background:linear-gradient(90deg,#4f46e5,#7c3aed);width:92%}
.mvf-mint{background:linear-gradient(90deg,#10b981,#34d399);width:84%}
.mvf-rose{background:linear-gradient(90deg,#e11d48,#f43f5e);width:88%}
.mvf-amber{background:linear-gradient(90deg,#f59e0b,#fbbf24);width:80%}
.miv-bar-val{font-size:12.5px;color:#0b1026;font-weight:700;text-align:right}

/* ============ PLATFORM TILES ============ */
.plat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.plat-tile{
  background:#fff;border:1.5px solid #eceaf4;border-radius:16px;padding:26px 20px;text-align:center;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.plat-tile:hover{transform:translateY(-4px);box-shadow:0 16px 36px -12px rgba(11,16,38,.12);border-color:#4f46e5}
.plat-tile.main{
  background:linear-gradient(180deg,#0b1026 0%,#1e1b4b 100%);color:#fff;border:0;
  box-shadow:0 18px 40px -12px rgba(11,16,38,.35);
  position:relative;
}
.plat-tile.main::before{
  content:"";position:absolute;inset:0;border-radius:16px;padding:1.5px;
  background:linear-gradient(135deg,#4f46e5,#e11d48,#f59e0b);
  -webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
  mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.plat-tile-badge{
  display:inline-block;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.4px;
  padding:4px 10px;border-radius:999px;margin-bottom:14px;
  background:linear-gradient(90deg,#4f46e5,#e11d48);color:#fff;
}
.plat-tile-ico{width:52px;height:52px;margin:0 auto 12px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;background:rgba(79,70,229,.1);color:#4f46e5}
.plat-tile.main .plat-tile-ico{background:rgba(255,255,255,.12);color:#fff}
.plat-tile-name{font-size:17px;font-weight:700;margin:0 0 4px}
.plat-tile-ver{font-size:12.5px;color:#6b6b86;margin:0 0 14px}
.plat-tile.main .plat-tile-ver{color:rgba(255,255,255,.7)}
.plat-tile-btn{width:100%}

/* ============ PERFORMANCE COMPARISON PANELS ============ */
.perf-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.perf-card{
  background:#fff;border:1px solid #eceaf4;border-radius:18px;padding:28px;
  transition:box-shadow .22s ease;
}
.perf-card:hover{box-shadow:0 18px 40px -14px rgba(11,16,38,.1)}
.perf-card-h3{font-size:19px;font-weight:700;color:#0b1026;margin:0 0 6px}
.perf-card-lead{font-size:13.5px;color:#6b6b86;margin:0 0 20px}
.perf-bar-row{display:grid;grid-template-columns:90px 1fr 56px;gap:12px;align-items:center;margin-bottom:12px}
.perf-bar-label{font-size:12.5px;color:#3a3a56;font-weight:600}
.perf-bar-track{height:18px;background:#f4f1fb;border-radius:999px;overflow:hidden;position:relative}
.perf-bar-fill{height:100%;border-radius:999px;display:flex;align-items:center;justify-content:flex-end;padding-right:8px;color:#fff;font-size:11px;font-weight:700}
.pbf-ind{background:linear-gradient(90deg,#4f46e5,#7c3aed)}
.pbf-gray{background:#a8a5b9}
.pbf-rose{background:linear-gradient(90deg,#e11d48,#f43f5e)}
.pbf-mint{background:linear-gradient(90deg,#10b981,#34d399)}
.perf-bar-val{font-size:12.5px;color:#0b1026;font-weight:700;text-align:right}
.perf-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:22px;padding-top:22px;border-top:1px dashed #eceaf4}
.perf-stat{text-align:center}
.perf-stat-num{font-size:22px;font-weight:800;color:#4f46e5;line-height:1}
.perf-stat.rose .perf-stat-num{color:#e11d48}
.perf-stat.mint .perf-stat-num{color:#10b981}
.perf-stat-lbl{font-size:11.5px;color:#6b6b86;margin-top:4px}

/* ============ REVIEWS ============ */
.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rev-card{
  position:relative;background:#fff;border:1px solid #eceaf4;border-radius:16px;padding:26px 22px 22px;
  transition:transform .22s ease,box-shadow .22s ease;
  overflow:hidden;
}
.rev-card:hover{transform:translateY(-3px);box-shadow:0 16px 36px -12px rgba(11,16,38,.1)}
.rev-ribbon{
  position:absolute;top:0;left:0;right:0;height:4px;
}
.rib-ind{background:linear-gradient(90deg,#4f46e5,#7c3aed)}
.rib-rose{background:linear-gradient(90deg,#e11d48,#f43f5e)}
.rib-mint{background:linear-gradient(90deg,#10b981,#34d399)}
.rib-amber{background:linear-gradient(90deg,#f59e0b,#fbbf24)}
.rib-sky{background:linear-gradient(90deg,#0284c7,#38bdf8)}
.rib-violet{background:linear-gradient(90deg,#7c3aed,#a78bfa)}
.rev-stars{color:#f59e0b;display:flex;gap:2px;margin-bottom:12px;font-size:14px;letter-spacing:1px}
.rev-text{font-size:14px;color:#3a3a56;margin:0 0 18px;line-height:1.6}
.rev-foot{display:flex;gap:12px;align-items:center}
.rev-av{
  width:44px;height:44px;border-radius:50%;color:#fff;font-weight:800;font-size:16px;
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
}
.av-ind{background:linear-gradient(135deg,#4f46e5,#7c3aed)}
.av-rose{background:linear-gradient(135deg,#e11d48,#f43f5e)}
.av-mint{background:linear-gradient(135deg,#10b981,#34d399)}
.av-amber{background:linear-gradient(135deg,#f59e0b,#fbbf24)}
.av-sky{background:linear-gradient(135deg,#0284c7,#38bdf8)}
.av-violet{background:linear-gradient(135deg,#7c3aed,#a78bfa)}
.rev-name{font-size:14.5px;font-weight:700;color:#0b1026;margin:0 0 2px}
.rev-role{font-size:12.5px;color:#6b6b86;margin:0}

/* ============ COMPARISON TABLE ============ */
.cmp-wrap{max-width:1100px;margin:0 auto;overflow-x:auto;border-radius:16px;box-shadow:0 16px 36px -12px rgba(11,16,38,.08)}
.cmp-tbl{width:100%;min-width:720px;background:#fff;border-collapse:collapse}
.cmp-tbl th,.cmp-tbl td{padding:14px 18px;text-align:center;border-bottom:1px solid #eceaf4;font-size:14px}
.cmp-tbl thead th{background:#0b1026;color:#fff;font-weight:700;font-size:13.5px;letter-spacing:.2px}
.cmp-tbl tbody th{text-align:left;font-weight:600;color:#0b1026;background:#fafaff}
.cmp-tbl .cmp-hl{background:linear-gradient(180deg,rgba(79,70,229,.08),rgba(225,29,72,.06));color:#4f46e5;font-weight:700}
.cmp-tbl .ck{color:#10b981;font-weight:700}
.cmp-tbl .cx{color:#9b9bb0;font-weight:700}
.cmp-tbl .pt{color:#f59e0b;font-weight:700}

/* ============ FAQ ============ */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid #eceaf4;border-radius:12px;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease}
.faq-item:hover{border-color:#d4d1f0}
.faq-item.open{border-color:transparent;box-shadow:0 12px 28px -10px rgba(11,16,38,.08)}
.faq-q{
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:18px 22px;cursor:pointer;user-select:none;
  font-size:15px;font-weight:700;color:#0b1026;
}
.faq-q:hover{color:#4f46e5}
.faq-chev{
  width:28px;height:28px;border-radius:8px;background:#f4f1fb;color:#4f46e5;
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
  transition:transform .24s ease,background .18s ease;
}
.faq-item.open .faq-chev{transform:rotate(180deg);background:#4f46e5;color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:380px}
.faq-a-body{padding:0 22px 20px;font-size:14px;color:#52526f;line-height:1.7}

/* ============ CTA BANNER ============ */
.cta-aur{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#4f46e5 0%,#7c3aed 35%,#e11d48 70%,#f59e0b 100%);
  color:#fff;padding:68px 0;text-align:center;
}
.cta-aur::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(500px 260px at 20% 20%,rgba(255,255,255,.18),transparent 70%),radial-gradient(500px 260px at 80% 80%,rgba(255,255,255,.12),transparent 70%);
  pointer-events:none;
}
.cta-aur-inner{position:relative}
.cta-aur-tag{display:inline-block;background:rgba(255,255,255,.18);padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:700;text-transform:uppercase;letter-spacing:.4px;margin-bottom:14px}
.cta-aur-title{font-size:32px;font-weight:800;margin:0 0 12px;letter-spacing:-.3px}
.cta-aur-desc{font-size:15.5px;max-width:640px;margin:0 auto 24px;opacity:.92}
.cta-aur-btns{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

/* ============ DOWNLOAD PAGE ============ */
.dl-hero{
  position:relative;overflow:hidden;padding:60px 0 80px;
  background:linear-gradient(135deg,#0b1026 0%,#1e1b4b 70%,#312e81 100%);
  color:#fff;
}
.dl-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(600px 300px at 15% 30%,rgba(79,70,229,.4),transparent 70%),radial-gradient(500px 280px at 85% 70%,rgba(225,29,72,.3),transparent 72%);
}
.dl-hero-inner{position:relative;text-align:center;max-width:700px;margin:0 auto}
.dl-hero-chip{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:700;text-transform:uppercase;letter-spacing:.3px;margin-bottom:18px}
.dl-hero-chip-dot{width:7px;height:7px;border-radius:50%;background:#10b981;box-shadow:0 0 10px rgba(16,185,129,.8)}
.dl-hero-title{font-size:40px;font-weight:800;margin:0 0 14px;letter-spacing:-.5px;line-height:1.15}
.dl-hero-sub{font-size:15.5px;color:rgba(255,255,255,.82);margin:0}

.dl-main{max-width:720px;margin:-48px auto 0;position:relative;z-index:2}
.dl-card-win{
  background:#fff;border-radius:22px;padding:32px;
  box-shadow:0 24px 60px -20px rgba(11,16,38,.35);
  border:1px solid #eceaf4;position:relative;overflow:hidden;
}
.dl-card-win::before{
  content:"";position:absolute;top:0;left:0;right:0;height:5px;
  background:linear-gradient(90deg,#4f46e5 0%,#7c3aed 35%,#e11d48 70%,#f59e0b 100%);
}
.dl-card-win-head{display:flex;gap:18px;align-items:center;margin-bottom:20px}
.dl-card-win-ico{
  width:64px;height:64px;border-radius:16px;color:#fff;
  background:linear-gradient(135deg,#4f46e5,#7c3aed);
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
}
.dl-card-win-name{font-size:22px;font-weight:800;color:#0b1026;margin:0 0 4px}
.dl-card-win-meta{font-size:13.5px;color:#6b6b86;margin:0}
.dl-specs{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding:18px;background:#f7f5ff;border-radius:14px;margin-bottom:18px}
.dl-spec-label{font-size:11.5px;color:#6b6b86;font-weight:600;text-transform:uppercase;letter-spacing:.3px;margin:0 0 3px}
.dl-spec-val{font-size:14px;color:#0b1026;font-weight:700;margin:0}
.dl-sec-badge{
  display:flex;gap:12px;align-items:center;padding:14px 16px;border-radius:12px;
  background:rgba(16,185,129,.08);border:1px solid rgba(16,185,129,.22);margin-bottom:18px;
}
.dl-sec-badge-ico{width:36px;height:36px;border-radius:10px;background:#10b981;color:#fff;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}
.dl-sec-badge-title{font-size:14px;font-weight:700;color:#065f46;margin:0 0 2px}
.dl-sec-badge-desc{font-size:12.5px;color:#047857;margin:0}
.dl-card-win-btns{display:flex;flex-wrap:wrap;gap:10px}
.dl-card-win-btns .btn{flex:1;min-width:160px}

/* other platforms */
.op-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.op-tile{
  background:#fff;border:1px solid #eceaf4;border-radius:16px;padding:26px 22px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.op-tile:hover{transform:translateY(-3px);box-shadow:0 16px 36px -12px rgba(11,16,38,.12);border-color:#4f46e5}
.op-tile-head{display:flex;gap:14px;align-items:center;margin-bottom:14px}
.op-tile-ico{width:48px;height:48px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0}
.op-tile .op-tile-ico.mac{background:linear-gradient(135deg,#374151,#6b7280)}
.op-tile .op-tile-ico.ios{background:linear-gradient(135deg,#0284c7,#38bdf8)}
.op-tile .op-tile-ico.and{background:linear-gradient(135deg,#10b981,#34d399)}
.op-tile-name{font-size:17px;font-weight:700;color:#0b1026;margin:0 0 2px}
.op-tile-ver{font-size:12.5px;color:#6b6b86;margin:0}
.op-tile-desc{font-size:13.5px;color:#52526f;margin:0 0 14px;line-height:1.55}
.op-tile-steps{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.op-tile-step{font-size:12.5px;color:#3a3a56;display:flex;gap:8px;align-items:flex-start}
.op-tile-step-n{flex-shrink:0;width:20px;height:20px;border-radius:6px;background:#f4f1fb;color:#4f46e5;font-weight:800;font-size:11px;display:inline-flex;align-items:center;justify-content:center}

/* install guide */
.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.guide-col{background:#fff;border:1px solid #eceaf4;border-radius:16px;padding:28px}
.guide-col-head{display:flex;gap:10px;align-items:center;margin-bottom:20px}
.guide-col-dot{width:10px;height:10px;border-radius:50%}
.gcd-ind{background:#4f46e5}
.gcd-rose{background:#e11d48}
.guide-col-title{font-size:17px;font-weight:700;color:#0b1026;margin:0}
.guide-steps{display:flex;flex-direction:column;gap:16px}
.gstep{display:grid;grid-template-columns:40px 1fr;gap:14px;align-items:flex-start}
.gstep-n{width:36px;height:36px;border-radius:10px;color:#fff;font-weight:800;font-size:14px;display:inline-flex;align-items:center;justify-content:center}
.gsn-ind{background:linear-gradient(135deg,#4f46e5,#7c3aed)}
.gsn-rose{background:linear-gradient(135deg,#e11d48,#f43f5e)}
.gstep-title{font-size:14.5px;font-weight:700;color:#0b1026;margin:0 0 3px}
.gstep-desc{font-size:13px;color:#52526f;margin:0;line-height:1.55}

/* requirements */
.req-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.req-tile{background:#fff;border:1px solid #eceaf4;border-radius:14px;padding:22px 20px;text-align:center;transition:transform .22s ease,box-shadow .22s ease}
.req-tile:hover{transform:translateY(-3px);box-shadow:0 14px 30px -10px rgba(11,16,38,.1)}
.req-tile-ico{width:44px;height:44px;margin:0 auto 10px;border-radius:11px;background:rgba(79,70,229,.1);color:#4f46e5;display:inline-flex;align-items:center;justify-content:center}
.req-tile-title{font-size:13px;color:#6b6b86;font-weight:600;text-transform:uppercase;letter-spacing:.3px;margin:0 0 4px}
.req-tile-val{font-size:14.5px;color:#0b1026;font-weight:700;margin:0}

/* version timeline */
.ver-list{max-width:880px;margin:0 auto}
.ver-item{display:grid;grid-template-columns:30px 1fr;gap:18px;padding-bottom:24px;position:relative}
.ver-item:last-child{padding-bottom:0}
.ver-dot-col{display:flex;flex-direction:column;align-items:center;position:relative}
.ver-dot{width:14px;height:14px;border-radius:50%;flex-shrink:0;margin-top:4px;box-shadow:0 0 0 4px rgba(79,70,229,.1)}
.vd-ind{background:#4f46e5}
.vd-rose{background:#e11d48}
.vd-mint{background:#10b981}
.vd-amber{background:#f59e0b}
.vd-violet{background:#7c3aed}
.ver-line{flex:1;width:2px;background:#eceaf4;margin-top:6px}
.ver-item:last-child .ver-line{display:none}
.ver-body{background:#fff;border:1px solid #eceaf4;border-radius:14px;padding:20px 24px;transition:border-color .18s ease}
.ver-body:hover{border-color:#4f46e5}
.ver-head{display:flex;align-items:center;gap:10px;margin-bottom:6px;flex-wrap:wrap}
.ver-num{font-size:17px;font-weight:800;color:#0b1026;margin:0}
.ver-tag{font-size:11px;padding:2px 8px;border-radius:999px;font-weight:700;letter-spacing:.3px;text-transform:uppercase}
.vt-stable{background:rgba(16,185,129,.14);color:#047857}
.vt-lts{background:rgba(79,70,229,.12);color:#4338ca}
.vt-beta{background:rgba(245,158,11,.16);color:#b45309}
.ver-date{font-size:12.5px;color:#6b6b86;margin-left:auto}
.ver-desc{font-size:13.5px;color:#52526f;margin:0;line-height:1.6}

/* security banner */
.sec-ban{
  display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:center;
  max-width:900px;margin:0 auto;
  padding:26px 30px;border-radius:18px;
  background:linear-gradient(135deg,rgba(79,70,229,.08),rgba(16,185,129,.08));
  border:1px solid rgba(79,70,229,.15);
}
.sec-ban-ico{width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,#4f46e5,#10b981);color:#fff;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}
.sec-ban-title{font-size:16px;font-weight:700;color:#0b1026;margin:0 0 4px}
.sec-ban-desc{font-size:13.5px;color:#52526f;margin:0;line-height:1.55}

/* ============ zh-cn ARTICLE PAGE ============ */
.art-hero{
  position:relative;overflow:hidden;padding:56px 0 60px;
  background:linear-gradient(135deg,#f7f5ff 0%,#fff5f5 100%);
  border-bottom:1px solid rgba(79,70,229,.1);
}
.art-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(500px 240px at 12% 30%,rgba(79,70,229,.15),transparent 70%),radial-gradient(460px 220px at 88% 70%,rgba(245,158,11,.15),transparent 72%);
}
.art-hero-inner{position:relative;max-width:880px;margin:0 auto}
.art-hero-crumb{font-size:12.5px;color:#6b6b86;margin-bottom:14px}
.art-hero-crumb a{color:#4f46e5;font-weight:600}
.art-hero-title{font-size:38px;font-weight:800;line-height:1.2;color:#0b1026;margin:0 0 14px;letter-spacing:-.3px}
.art-hero-sub{font-size:15.5px;color:#52526f;margin:0 0 22px;max-width:720px}
.kw-strip{display:flex;flex-wrap:wrap;gap:8px}
.kw{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:#fff;border:1px solid #eceaf4;color:#4a4a64;transition:border-color .18s,color .18s;
}
.kw:hover{border-color:#4f46e5;color:#4f46e5}

.art-layout{
  max-width:1180px;margin:0 auto;padding:56px 20px;
  display:grid;grid-template-columns:1fr 320px;gap:44px;
}
.art-body{font-size:15px;line-height:1.85;color:#2a2a42}
.art-body h2{font-size:26px;font-weight:800;color:#0b1026;margin:36px 0 14px;letter-spacing:-.3px;line-height:1.25}
.art-body h2:first-child{margin-top:0}
.art-body h3{font-size:19px;font-weight:700;color:#0b1026;margin:26px 0 10px}
.art-body p{margin:0 0 14px}
.art-body strong{color:#0b1026;font-weight:700}
.art-body ul{padding-left:22px;margin:0 0 16px}
.art-body li{margin-bottom:6px}
.art-body a:not(.btn){color:#4f46e5;font-weight:600;text-decoration:underline;text-decoration-color:rgba(79,70,229,.35)}
.art-body a.btn{text-decoration:none}

/* inline CTA banner */
.inline-cta{
  display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
  padding:22px 26px;border-radius:14px;margin:24px 0;
}
.ic-ind{background:linear-gradient(120deg,rgba(79,70,229,.08),rgba(124,58,237,.08));border:1px solid rgba(79,70,229,.2)}
.ic-rose{background:linear-gradient(120deg,rgba(225,29,72,.08),rgba(244,114,182,.08));border:1px solid rgba(225,29,72,.18)}
.ic-mint{background:linear-gradient(120deg,rgba(16,185,129,.08),rgba(52,211,153,.08));border:1px solid rgba(16,185,129,.2)}
.ic-amber{background:linear-gradient(120deg,rgba(245,158,11,.1),rgba(251,191,36,.08));border:1px solid rgba(245,158,11,.2)}
.inline-cta-text{flex:1;min-width:220px}
.inline-cta-title{font-size:16px;font-weight:700;color:#0b1026;margin:0 0 3px}
.inline-cta-desc{font-size:13.5px;color:#52526f;margin:0}

/* tips grid */
.tips-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:14px 0 22px}
.tip-card{background:#fff;border:1px solid #eceaf4;border-radius:12px;padding:18px;transition:border-color .18s,box-shadow .18s}
.tip-card:hover{border-color:#4f46e5;box-shadow:0 10px 24px -10px rgba(11,16,38,.1)}
.tip-num{display:inline-block;font-size:12px;font-weight:800;color:#4f46e5;margin-bottom:6px;letter-spacing:.3px}
.tip-title{font-size:14.5px;font-weight:700;color:#0b1026;margin:0 0 4px}
.tip-desc{font-size:13px;color:#52526f;margin:0;line-height:1.55}

/* sidebar */
.aside{position:sticky;top:92px;align-self:start}
.aside-box{background:#fff;border:1px solid #eceaf4;border-radius:14px;padding:18px;margin-bottom:16px}
.aside-box-title{font-size:14px;font-weight:800;color:#0b1026;margin:0 0 12px;letter-spacing:-.2px;display:flex;align-items:center;gap:8px}
.aside-box-title-dot{width:5px;height:16px;border-radius:2px;background:linear-gradient(180deg,#4f46e5,#e11d48)}
.aside-dl-btn{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;
  background:#f7f5ff;border:1px solid transparent;transition:border-color .18s,background .18s;
  margin-bottom:8px;width:100%;text-align:left;
}
.aside-dl-btn:last-child{margin-bottom:0}
.aside-dl-btn:hover{border-color:#4f46e5;background:#fff}
.aside-dl-btn.primary{background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff}
.aside-dl-btn.primary:hover{opacity:.92;border-color:transparent}
.aside-dl-ico{width:32px;height:32px;border-radius:8px;background:rgba(79,70,229,.12);color:#4f46e5;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}
.aside-dl-btn.primary .aside-dl-ico{background:rgba(255,255,255,.2);color:#fff}
.aside-dl-info{flex:1;min-width:0}
.aside-dl-name{font-size:13.5px;font-weight:700;margin:0 0 1px}
.aside-dl-ver{font-size:11.5px;opacity:.75;margin:0}
.aside-toc{display:flex;flex-direction:column;gap:4px}
.aside-toc a{font-size:13px;color:#52526f;padding:6px 10px;border-radius:8px;transition:color .18s,background .18s}
.aside-toc a:hover{background:#f7f5ff;color:#4f46e5}
.aside-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.aside-stat{text-align:center;padding:12px 8px;background:#f7f5ff;border-radius:10px}
.aside-stat-num{font-size:20px;font-weight:800;color:#4f46e5;line-height:1}
.aside-stat-lbl{font-size:11px;color:#6b6b86;margin-top:3px}
.aside-sec{display:flex;gap:10px;align-items:flex-start;padding:14px;border-radius:12px;background:linear-gradient(135deg,rgba(16,185,129,.08),rgba(79,70,229,.05));border:1px solid rgba(16,185,129,.18)}
.aside-sec-ico{width:32px;height:32px;border-radius:8px;background:#10b981;color:#fff;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}
.aside-sec-text{font-size:12.5px;color:#047857;font-weight:600;line-height:1.5}

/* ============ FOOTER ============ */
.footer-aur{background:#0b1026;color:#a5a3c6;padding:40px 0 26px}
.footer-aur-inner{max-width:1200px;margin:0 auto;padding:0 20px;text-align:center}
.footer-aur-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16px;margin-bottom:18px}
.footer-aur-sec{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#86fcc1;font-weight:600;
  padding:6px 14px;border-radius:999px;background:rgba(16,185,129,.12);border:1px solid rgba(16,185,129,.28);
  margin-bottom:16px;
}
.footer-aur-note{font-size:12.5px;color:#86869d;max-width:720px;margin:0 auto;line-height:1.7}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .feat-matrix{grid-template-columns:repeat(3,1fr)}
  .rev-grid{grid-template-columns:repeat(2,1fr)}
  .hero-aur-title{font-size:40px}
}
@media (max-width:860px){
  .au-nav-links{display:none}
  .au-nav-cta{display:none}
  .au-nav-mob{display:inline-flex;align-items:center;justify-content:center}
  .hero-aur-inner{grid-template-columns:1fr;gap:40px}
  .hero-aur-visual{min-height:auto}
  .hero-stage{height:380px}
  .strip-stats-row{grid-template-columns:repeat(2,1fr);gap:20px}
  .feat-matrix{grid-template-columns:repeat(2,1fr)}
  .plat-row{grid-template-columns:repeat(2,1fr)}
  .perf-grid{grid-template-columns:1fr}
  .rev-grid{grid-template-columns:1fr}
  .op-row{grid-template-columns:1fr}
  .req-grid{grid-template-columns:repeat(2,1fr)}
  .guide-grid{grid-template-columns:1fr}
  .art-layout{grid-template-columns:1fr;gap:28px}
  .aside{position:static}
  .mod-item-body-inner{grid-template-columns:1fr}
  .dl-specs{grid-template-columns:repeat(2,1fr)}
  .hero-aur-title{font-size:34px}
  .sec-h2{font-size:28px}
  .section{padding:56px 0}
  .art-hero-title{font-size:28px}
}
@media (max-width:520px){
  .feat-matrix{grid-template-columns:1fr}
  .plat-row{grid-template-columns:1fr}
  .strip-stats-row{grid-template-columns:1fr;gap:16px}
  .tips-grid{grid-template-columns:1fr}
  .hero-aur-title{font-size:30px}
  .dl-hero-title{font-size:30px}
  .cta-aur-title{font-size:26px}
  .dl-card-win{padding:24px 20px}
  .dl-specs{grid-template-columns:1fr}
  .mod-item-head{grid-template-columns:48px 1fr auto;padding:18px 18px;gap:14px}
  .mod-item-body-inner{padding:0 18px 22px}
}