:root{
  --radius:22px;
  --sans:"Inter","SF Pro Text",-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Noto Sans CJK SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --display:"SF Pro Display","Inter",-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  --serif:"Songti SC","Noto Serif CJK SC","Source Han Serif SC","STSong",serif;
  --mono:"JetBrains Mono","SF Mono",ui-monospace,Menlo,Consolas,"Liberation Mono",monospace;
}

/* Dark — keep the existing starfield look */
html, [data-theme="dark"]{
  color-scheme:dark;
  --bg:#05060f;
  --text:#eef0ff;
  --ink:#eef0ff;
  --ink-2:rgba(226,230,255,.72);
  --ink-3:rgba(210,216,255,.48);
  --card:linear-gradient(160deg,rgba(255,255,255,.065),rgba(255,255,255,.015) 40%,rgba(255,255,255,.03));
  --border:rgba(255,255,255,.09);
  --line:rgba(255,255,255,.09);
  --glass:rgba(255,255,255,.035);
  --accent-global:#b9a6ff;
  --gold:#f3d38c;
  --violet:#b9a6ff;
  --cyan:#7fd8ff;
  --hover:#fff;
  --bg-glow:
    radial-gradient(1200px 700px at 80% -10%, rgba(92,72,190,.28), transparent 60%),
    radial-gradient(900px 600px at -10% 20%, rgba(30,110,160,.20), transparent 60%),
    radial-gradient(1000px 800px at 50% 120%, rgba(150,70,170,.16), transparent 60%);
  --nav-bg:linear-gradient(to bottom,rgba(5,6,15,.72),rgba(5,6,15,.25));
  --nav-line:rgba(255,255,255,.05);
  --title-cn:linear-gradient(180deg,#fff 10%,#e9e2ff 45%,#9f8cf0 100%);
  --title-en:linear-gradient(90deg,var(--gold),#fff 40%,var(--cyan));
  --title-shadow:drop-shadow(0 8px 40px rgba(150,120,255,.35));
  --heading:#fff;
  --eyebrow-bg:linear-gradient(90deg,rgba(185,166,255,.08),rgba(127,216,255,.06));
  --stats-bg:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  --card-shadow:0 30px 80px -40px rgba(0,0,0,.8),inset 0 1px 0 rgba(255,255,255,.06);
  --card-hover-border:rgba(255,255,255,.16);
  --icon-ring:rgba(255,255,255,.08);
  --chip-bg:rgba(255,255,255,.045);
  --chip-line:rgba(255,255,255,.06);
  --code-bg:rgba(3,4,12,.6);
  --code-line:rgba(255,255,255,.07);
  --code-ink:#dfe3ff;
  --copy-hover-bg:rgba(255,255,255,.12);
  --copy-hover-fg:#fff;
  --link-line:rgba(255,255,255,.06);
  --soon-fg:#fff;
  --soon-bg:linear-gradient(120deg,rgba(231,182,255,.35),rgba(255,159,210,.3));
  --install-bg:linear-gradient(135deg,rgba(185,166,255,.08),rgba(127,216,255,.04) 50%,rgba(255,255,255,.02));
  --term-bg:rgba(3,4,12,.78);
  --term-line:rgba(255,255,255,.08);
  --term-ink:#e4e7ff;
  --term-comment:#6f7699;
  --aurora-opacity:.55;
  --aurora-blend:screen;
  --aurora-1:rgba(98,82,255,.55);
  --aurora-2:rgba(40,180,220,.35);
  --aurora-3:rgba(230,120,200,.22);
  --grain-opacity:.05;
  --selection:rgba(185,166,255,.35);
  --accent-fg:var(--accent);
  --theme-color:#05060f;
}

/* Light — pearlescent shell / taro-lilac starfield */
@media (prefers-color-scheme:light){
  html:not([data-theme]){
    color-scheme:light;
    --bg:#f3f0f8;
    --text:#1c1830;
    --ink:#1c1830;
    --ink-2:rgba(28,24,48,.72);
    --ink-3:rgba(28,24,48,.58);
    --card:linear-gradient(160deg,rgba(255,255,255,.82),rgba(255,252,248,.62) 42%,rgba(246,242,255,.74));
    --border:rgba(48,36,90,.12);
    --line:rgba(48,36,90,.12);
    --glass:rgba(255,255,255,.52);
    --accent-global:#5b45b8;
    --gold:#8a6418;
    --violet:#5b45b8;
    --cyan:#1f6f88;
    --hover:#1c1830;
    --bg-glow:
      radial-gradient(1200px 700px at 82% -8%, rgba(168,150,230,.32), transparent 60%),
      radial-gradient(900px 600px at -8% 18%, rgba(140,190,220,.22), transparent 60%),
      radial-gradient(1000px 800px at 48% 118%, rgba(220,170,200,.18), transparent 60%);
    --nav-bg:linear-gradient(to bottom,rgba(243,240,248,.86),rgba(243,240,248,.42));
    --nav-line:rgba(48,36,90,.08);
    --title-cn:linear-gradient(180deg,#241a48 8%,#3d2e7a 48%,#5a3d9e 100%);
    --title-en:linear-gradient(90deg,#8a6418,#4a3488 42%,#1f6f88);
    --title-shadow:drop-shadow(0 8px 28px rgba(90,70,160,.18));
    --heading:#1c1830;
    --eyebrow-bg:linear-gradient(90deg,rgba(91,69,184,.08),rgba(31,111,136,.06));
    --stats-bg:linear-gradient(180deg,rgba(255,255,255,.7),rgba(255,255,255,.38));
    --card-shadow:0 24px 60px -36px rgba(70,50,120,.28),inset 0 1px 0 rgba(255,255,255,.9);
    --card-hover-border:rgba(80,60,140,.22);
    --icon-ring:rgba(40,30,80,.08);
    --chip-bg:rgba(48,36,90,.05);
    --chip-line:rgba(48,36,90,.08);
    --code-bg:rgba(255,255,255,.7);
    --code-line:rgba(48,36,90,.1);
    --code-ink:#1e1a32;
    --copy-hover-bg:rgba(48,36,90,.08);
    --copy-hover-fg:#1c1830;
    --link-line:rgba(48,36,90,.08);
    --soon-fg:#4a2458;
    --soon-bg:linear-gradient(120deg,rgba(210,160,230,.45),rgba(255,180,210,.4));
    --install-bg:linear-gradient(135deg,rgba(185,166,255,.16),rgba(160,210,230,.1) 50%,rgba(255,255,255,.4));
    --term-bg:#16141f;
    --term-line:rgba(255,255,255,.1);
    --term-ink:#e4e7ff;
    --term-comment:#8b90a8;
    --aurora-opacity:.38;
    --aurora-blend:multiply;
    --aurora-1:rgba(150,130,220,.42);
    --aurora-2:rgba(80,160,190,.32);
    --aurora-3:rgba(210,140,180,.28);
    --grain-opacity:.035;
    --selection:rgba(91,69,184,.22);
    --accent-fg:color-mix(in srgb,var(--accent) 58%,#1a1230 42%);
    --theme-color:#f3f0f8;
  }
  html:not([data-theme]) .card{
    --accent-fg: color-mix(in srgb, var(--accent) 48%, #161022 52%);
  }
}

[data-theme="light"]{
  color-scheme:light;
  --bg:#f3f0f8;
  --text:#1c1830;
  --ink:#1c1830;
  --ink-2:rgba(28,24,48,.72);
  --ink-3:rgba(28,24,48,.58);
  --card:linear-gradient(160deg,rgba(255,255,255,.82),rgba(255,252,248,.62) 42%,rgba(246,242,255,.74));
  --border:rgba(48,36,90,.12);
  --line:rgba(48,36,90,.12);
  --glass:rgba(255,255,255,.52);
  --accent-global:#5b45b8;
  --gold:#8a6418;
  --violet:#5b45b8;
  --cyan:#1f6f88;
  --hover:#1c1830;
  --bg-glow:
    radial-gradient(1200px 700px at 82% -8%, rgba(168,150,230,.32), transparent 60%),
    radial-gradient(900px 600px at -8% 18%, rgba(140,190,220,.22), transparent 60%),
    radial-gradient(1000px 800px at 48% 118%, rgba(220,170,200,.18), transparent 60%);
  --nav-bg:linear-gradient(to bottom,rgba(243,240,248,.86),rgba(243,240,248,.42));
  --nav-line:rgba(48,36,90,.08);
  --title-cn:linear-gradient(180deg,#241a48 8%,#3d2e7a 48%,#5a3d9e 100%);
  --title-en:linear-gradient(90deg,#8a6418,#4a3488 42%,#1f6f88);
  --title-shadow:drop-shadow(0 8px 28px rgba(90,70,160,.18));
  --heading:#1c1830;
  --eyebrow-bg:linear-gradient(90deg,rgba(91,69,184,.08),rgba(31,111,136,.06));
  --stats-bg:linear-gradient(180deg,rgba(255,255,255,.7),rgba(255,255,255,.38));
  --card-shadow:0 24px 60px -36px rgba(70,50,120,.28),inset 0 1px 0 rgba(255,255,255,.9);
  --card-hover-border:rgba(80,60,140,.22);
  --icon-ring:rgba(40,30,80,.08);
  --chip-bg:rgba(48,36,90,.05);
  --chip-line:rgba(48,36,90,.08);
  --code-bg:rgba(255,255,255,.7);
  --code-line:rgba(48,36,90,.1);
  --code-ink:#1e1a32;
  --copy-hover-bg:rgba(48,36,90,.08);
  --copy-hover-fg:#1c1830;
  --link-line:rgba(48,36,90,.08);
  --soon-fg:#4a2458;
  --soon-bg:linear-gradient(120deg,rgba(210,160,230,.45),rgba(255,180,210,.4));
  --install-bg:linear-gradient(135deg,rgba(185,166,255,.16),rgba(160,210,230,.1) 50%,rgba(255,255,255,.4));
  --term-bg:#16141f;
  --term-line:rgba(255,255,255,.1);
  --term-ink:#e4e7ff;
  --term-comment:#8b90a8;
  --aurora-opacity:.38;
  --aurora-blend:multiply;
  --aurora-1:rgba(150,130,220,.42);
  --aurora-2:rgba(80,160,190,.32);
  --aurora-3:rgba(210,140,180,.28);
  --grain-opacity:.035;
  --selection:rgba(91,69,184,.22);
  --accent-fg:color-mix(in srgb,var(--accent) 58%,#1a1230 42%);
  --theme-color:#f3f0f8;
}


[data-theme="light"] .card{
  --accent-fg: color-mix(in srgb, var(--accent) 48%, #161022 52%);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;background:var(--bg,#05060f)}
body{
  margin:0;min-height:100vh;color:var(--ink);font-family:var(--sans);line-height:1.6;
  background:var(--bg-glow),var(--bg);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block}
::selection{background:var(--selection)}

html.theme-ready body,
html.theme-ready .nav,
html.theme-ready .card,
html.theme-ready .stats,
html.theme-ready .install,
html.theme-ready .install-card,
html.theme-ready .theme-toggle,
html.theme-ready .btn-ghost,
html.theme-ready .nav-gh,
html.theme-ready .chips span,
html.theme-ready .copy,
html.theme-ready .footer,
html.theme-ready .callout,
html.theme-ready .file-list a,
html.theme-ready .plat-list li,
html.theme-ready .services-contact,
html.theme-ready .svc-mark{
  transition:background .4s ease,background-color .4s ease,color .4s ease,border-color .4s ease,box-shadow .4s ease;
}

#sky{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.aurora{position:fixed;inset:0;z-index:0;pointer-events:none;filter:blur(70px);opacity:var(--aurora-opacity)}
.aurora span{position:absolute;border-radius:50%;mix-blend-mode:var(--aurora-blend);animation:drift 26s ease-in-out infinite alternate}
.aurora span:nth-child(1){width:46vw;height:46vw;left:-8vw;top:-14vw;background:radial-gradient(circle,var(--aurora-1),transparent 65%)}
.aurora span:nth-child(2){width:38vw;height:38vw;right:-6vw;top:6vh;background:radial-gradient(circle,var(--aurora-2),transparent 65%);animation-duration:32s}
.aurora span:nth-child(3){width:40vw;height:40vw;left:30vw;top:55vh;background:radial-gradient(circle,var(--aurora-3),transparent 65%);animation-duration:38s}
@keyframes drift{to{transform:translate3d(6vw,4vh,0) scale(1.12)}}
.grain{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:var(--grain-opacity);
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>")}

.nav,main,.footer{position:relative;z-index:2}

/* nav */
.nav{position:sticky;top:0;display:flex;align-items:center;justify-content:space-between;
  padding:18px clamp(20px,5vw,64px);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  background:var(--nav-bg);border-bottom:1px solid var(--nav-line);z-index:5}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;letter-spacing:.02em}
.brand img{filter:drop-shadow(0 0 10px rgba(201,182,255,.6))}
.brand-en{color:var(--ink-3);font-weight:500;font-size:.9em;font-family:var(--display)}
.nav-links{display:flex;align-items:center;gap:22px;font-size:14px;color:var(--ink-2)}
.nav-links a{transition:color .2s}
.nav-links a:hover{color:var(--hover)}
.nav-gh{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border:1px solid var(--line);border-radius:999px;background:var(--glass)}
.nav-gh svg{width:15px;height:15px}

.theme-toggle{
  position:relative;width:40px;height:40px;padding:0;flex:none;border-radius:50%;
  border:1px solid var(--line);background:var(--glass);color:var(--ink);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.theme-toggle:hover{border-color:color-mix(in srgb,var(--violet) 45%,var(--line));color:var(--hover);
  box-shadow:0 0 0 4px color-mix(in srgb,var(--violet) 16%,transparent),inset 0 1px 0 rgba(255,255,255,.12)}
.theme-toggle:focus-visible{outline:2px solid var(--violet);outline-offset:3px}
.theme-toggle svg{width:18px;height:18px;position:absolute;overflow:visible;
  transition:opacity .35s ease,transform .45s cubic-bezier(.2,.8,.2,1)}
.theme-toggle .icon-sun{opacity:1;transform:none}
.theme-toggle .icon-moon{opacity:0;transform:rotate(90deg) scale(.5)}
[data-theme="light"] .theme-toggle .icon-sun{opacity:0;transform:rotate(-90deg) scale(.5)}
[data-theme="light"] .theme-toggle .icon-moon{opacity:1;transform:none}

/* hero */
.hero{max-width:1120px;margin:0 auto;padding:clamp(72px,12vh,140px) clamp(20px,5vw,40px) 80px;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:10px;margin:0 0 28px;padding:7px 16px;border-radius:999px;
  font:500 12px/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--ink-2);
  border:1px solid var(--line);background:var(--eyebrow-bg)}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--gold);box-shadow:0 0 12px var(--gold)}
h1{margin:0;line-height:1.02}
.h-cn{display:block;font-family:var(--serif);font-weight:700;font-size:clamp(56px,9vw,124px);letter-spacing:.12em;padding-left:.12em;
  background:var(--title-cn);-webkit-background-clip:text;background-clip:text;color:transparent;
  filter:var(--title-shadow)}
.h-en{display:block;margin-top:14px;font-family:var(--display);font-weight:300;font-size:clamp(18px,2.4vw,28px);letter-spacing:.5em;padding-left:.5em;text-transform:uppercase;
  background:var(--title-en);-webkit-background-clip:text;background-clip:text;color:transparent}
.tagline{margin:34px 0 10px;font-family:var(--serif);font-size:clamp(18px,2vw,22px);color:var(--heading);letter-spacing:.2em}
.lede{max-width:640px;margin:0 auto;color:var(--ink-2);font-size:16px}
.lede strong{color:var(--heading);font-weight:600}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin:38px 0 56px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;font-size:14px;font-weight:500;transition:transform .25s,box-shadow .25s,background .25s,color .25s,border-color .25s}
.btn-primary{color:#140f2a;background:linear-gradient(135deg,#fff3d6,#d9cbff 55%,#a6e4ff);box-shadow:0 10px 40px -10px rgba(185,166,255,.7),inset 0 1px 0 rgba(255,255,255,.8)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 50px -10px rgba(185,166,255,.9)}
.btn-ghost{border:1px solid var(--line);background:var(--glass);color:var(--ink-2);font-family:var(--mono);font-size:13px}
.btn-ghost:hover{color:var(--hover);border-color:color-mix(in srgb,var(--hover) 22%,var(--line))}
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));max-width:720px;margin:0 auto;padding:22px 10px;border-radius:20px;border:1px solid var(--line);
  background:var(--stats-bg);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.stats div{padding:0 12px}
.stats div+div{border-left:1px solid var(--line)}
.stats dt{font-size:12px;color:var(--ink-3);letter-spacing:.12em}
.stats dd{margin:6px 0 0;font:300 34px/1.1 var(--display);color:var(--heading)}
.stats dd.small{font-size:15px;line-height:2.4;font-weight:400;color:var(--ink)}
.stats sup{color:var(--ink-3)}
.footnote{margin:14px 0 0;font-size:12px;color:var(--ink-3)}

/* sections */
.projects{max-width:1240px;margin:0 auto;padding:40px clamp(16px,4vw,40px) 40px}
.section-head{text-align:center;margin-bottom:46px}
.kicker{margin:0 0 10px;font:500 12px/1 var(--mono);letter-spacing:.3em;text-transform:uppercase;color:var(--violet)}
h2{margin:0;font-family:var(--serif);font-size:clamp(30px,3.6vw,44px);letter-spacing:.08em;font-weight:700;color:var(--ink)}
.section-sub{margin:12px 0 0;color:var(--ink-2)}

.grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:22px}
.card{grid-column:span 2;position:relative;display:flex;flex-direction:column;gap:16px;padding:28px 26px 24px;border-radius:var(--radius);
  background:var(--card);
  border:1px solid var(--border);box-shadow:var(--card-shadow);
  backdrop-filter:blur(16px) saturate(130%);-webkit-backdrop-filter:blur(16px) saturate(130%);
  overflow:hidden;isolation:isolate;transition:transform .5s cubic-bezier(.2,.8,.2,1),border-color .4s,box-shadow .5s,background .4s}
.card-wide{grid-column:span 3}
.card::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;z-index:-1;
  background:linear-gradient(140deg,color-mix(in srgb,var(--accent) 55%,transparent),transparent 35%,transparent 65%,color-mix(in srgb,var(--accent2) 45%,transparent));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:.55;transition:opacity .4s}
.card-glow{position:absolute;z-index:-1;width:420px;height:420px;border-radius:50%;left:var(--mx,70%);top:var(--my,-10%);transform:translate(-50%,-50%);
  background:radial-gradient(circle,color-mix(in srgb,var(--accent) 22%,transparent),transparent 62%);opacity:.6;transition:opacity .4s;pointer-events:none}
.card:hover{transform:translateY(-6px);border-color:var(--card-hover-border);box-shadow:0 40px 90px -40px color-mix(in srgb,var(--accent) 45%,#000)}
.card:hover::before{opacity:1}
.card:hover .card-glow{opacity:1}

.card-top{display:flex;align-items:center;gap:16px}
.app-icon{width:60px;height:60px;border-radius:16px;flex:none;box-shadow:0 10px 30px -8px color-mix(in srgb,var(--accent) 60%,transparent),0 0 0 1px var(--icon-ring)}
.title{flex:1;min-width:0}
h3{margin:0;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
h3 .cn{font-family:var(--serif);font-size:26px;letter-spacing:.08em;font-weight:700}
h3 .en{font-family:var(--display);font-size:16px;font-weight:500;color:var(--accent-fg,var(--accent));letter-spacing:.02em}
.role{margin:2px 0 0;font-size:13px;color:var(--ink-3);letter-spacing:.06em}
.badge{flex:none;align-self:flex-start;padding:4px 10px;border-radius:999px;font:500 12px/1.4 var(--mono);color:var(--accent-fg,var(--accent));
  border:1px solid color-mix(in srgb,var(--accent) 40%,transparent);background:color-mix(in srgb,var(--accent) 10%,transparent)}
.badge-soft{font-family:var(--sans);letter-spacing:.08em}
.badge-soon{font-family:var(--sans);letter-spacing:.08em;color:var(--soon-fg);border-color:transparent;
  background:var(--soon-bg);box-shadow:0 0 20px -4px rgba(231,182,255,.6)}

.desc{margin:0;font-size:15px;color:var(--ink)}
.features{margin:0;padding:0;list-style:none;display:grid;gap:9px}
.features li{position:relative;padding-left:20px;font-size:13.5px;color:var(--ink-2);line-height:1.6}
.features li::before{content:"";position:absolute;left:2px;top:.62em;width:7px;height:7px;transform:rotate(45deg);
  background:linear-gradient(135deg,var(--accent),var(--accent2));box-shadow:0 0 8px color-mix(in srgb,var(--accent) 70%,transparent)}
.chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:auto}
.chips span{padding:4px 10px;border-radius:8px;font-size:12px;color:var(--ink-2);background:var(--chip-bg);border:1px solid var(--chip-line)}

.install{position:relative;display:flex;flex-wrap:wrap;align-items:flex-start;gap:8px;padding:11px 12px 11px 14px;border-radius:12px;
  background:var(--code-bg);border:1px solid var(--code-line);font-family:var(--mono)}
.install code{flex:1;min-width:0;font-size:12px;line-height:1.65;color:var(--code-ink);white-space:normal;overflow-wrap:anywhere}
.install code::-webkit-scrollbar{display:none}
.install code::before{content:"$ ";color:var(--accent-fg,var(--accent))}
.install code.sub{flex-basis:100%;color:var(--ink-3);font-size:11.5px}
.install code.sub::before{content:""}
.install .c{color:var(--ink-3)}
.copy{flex:none;padding:4px 10px;border-radius:8px;font:500 11px/1.4 var(--sans);color:var(--ink-2);cursor:pointer;
  background:color-mix(in srgb,var(--ink) 6%,transparent);border:1px solid var(--line);transition:all .2s}
.copy:hover{color:var(--copy-hover-fg);background:var(--copy-hover-bg)}
.copy.done{color:#0d1a14;background:var(--accent2);border-color:transparent}

.links{display:flex;flex-wrap:wrap;gap:8px 18px;padding-top:14px;border-top:1px solid var(--link-line)}
.links a{font-size:13.5px;color:var(--ink);display:inline-flex;gap:4px;align-items:center;position:relative}
.links a span{color:var(--accent-fg,var(--accent));transition:transform .25s}
.links a:hover span{transform:translate(2px,-2px)}
.links a::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;background:linear-gradient(90deg,var(--accent),transparent);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.links a:hover::after{transform:scaleX(1)}
.links a.link-intro{color:var(--accent-fg,var(--accent));font-weight:600}

.note{margin:0;font-size:13px;color:var(--ink-3)}
.card-soon .desc{color:var(--ink-2);font-family:var(--serif);letter-spacing:.06em}
.card-soon .app-icon{animation:breathe 4.5s ease-in-out infinite}
@keyframes breathe{50%{box-shadow:0 10px 40px -4px rgba(231,182,255,.75),0 0 0 1px var(--icon-ring)}}
.soon-line{margin:auto 0 0;display:flex;align-items:center;gap:10px;font:500 12px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--ink-3)}
.pulse{width:8px;height:8px;border-radius:50%;background:#e7b6ff;box-shadow:0 0 0 0 rgba(231,182,255,.6);animation:pulse 2.4s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 12px rgba(231,182,255,0)}100%{box-shadow:0 0 0 0 rgba(231,182,255,0)}}

/* install section */
.install-sec{max-width:1240px;margin:0 auto;padding:60px clamp(16px,4vw,40px) 40px}
.install-card{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:center;padding:clamp(28px,4vw,52px);border-radius:28px;
  border:1px solid var(--line);background:var(--install-bg);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.install-card h2{font-size:clamp(26px,3vw,36px)}
.fine{margin:18px 0 0;font-size:12.5px;color:var(--ink-3);line-height:1.7}
.terminal{border-radius:16px;overflow:hidden;background:var(--term-bg);border:1px solid var(--term-line);box-shadow:0 30px 70px -30px rgba(0,0,0,.9)}
.term-bar{display:flex;align-items:center;gap:7px;padding:11px 14px;border-bottom:1px solid var(--term-line)}
.term-bar i{width:11px;height:11px;border-radius:50%;background:#ff5f57}
.term-bar i:nth-child(2){background:#febc2e}.term-bar i:nth-child(3){background:#28c840}
.term-bar span{margin-left:auto;font:12px var(--mono);color:#8b90a8}
.terminal pre{margin:0;padding:18px 20px;overflow-x:auto;font:13px/1.85 var(--mono);color:var(--term-ink)}
.terminal .c{color:var(--term-comment)}.terminal .p{color:#f3d38c}
.term-link{display:block;padding:11px 20px;border-top:1px solid var(--term-line);font:12px var(--mono);color:#b9a6ff}
.term-link:hover{color:#fff}

/* services */
#services{scroll-margin-top:84px}
.services{max-width:1240px;margin:0 auto;padding:60px clamp(16px,4vw,40px) 28px}
.services-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.services-grid .card{grid-column:auto;height:100%}
.services-grid h3{flex-direction:column;align-items:flex-start;gap:2px}
.services-grid h3 .cn{font-size:24px;line-height:1.25}
.services-grid h3 .en{font-size:14px;line-height:1.3}
.services-grid .role{margin-top:4px}
.services-grid .links{margin-top:auto}
.svc-mark{width:60px;height:60px;border-radius:16px;flex:none;display:grid;place-items:center;
  color:var(--accent-fg,var(--accent));
  background:color-mix(in srgb,var(--accent) 14%,transparent);
  box-shadow:0 10px 30px -8px color-mix(in srgb,var(--accent) 55%,transparent),0 0 0 1px var(--icon-ring)}
.svc-mark svg{width:28px;height:28px}
.services-contact{margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px 28px;
  padding:clamp(22px,3vw,36px);border-radius:28px;border:1px solid var(--line);background:var(--install-bg);text-align:left;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.services-contact h2{font-size:clamp(24px,3vw,34px)}
.services-contact .section-sub{margin:8px 0 0;max-width:40em}
.services-contact .section-sub a{color:var(--violet);text-decoration:underline;text-underline-offset:3px;font-family:var(--mono);font-size:.92em}
.services-contact .section-sub a:hover{color:var(--hover)}
.services-contact .btn{flex:none}

/* footer */
.footer{max-width:1240px;margin:40px auto 0;padding:34px clamp(16px,4vw,40px) 46px;display:grid;grid-template-columns:1fr auto;gap:14px 30px;align-items:center;
  border-top:1px solid var(--line);color:var(--ink-2);font-size:14px}
.foot-brand{display:flex;align-items:center;gap:10px;color:var(--ink)}
.foot-links{display:flex;flex-wrap:wrap;gap:10px 24px}
.foot-links a:hover{color:var(--hover)}
.copy-r{grid-column:1/-1;margin:0;font-size:12px;color:var(--ink-3);font-family:var(--mono)}

/* project pages */
.doc{max-width:980px;margin:0 auto;padding:clamp(28px,5vh,56px) clamp(20px,5vw,40px) 72px;--accent-fg:var(--accent)}
[data-theme="light"] .doc{--accent-fg:color-mix(in srgb,var(--accent) 48%,#161022 52%)}
.back{margin:0;font-size:13.5px}
.back a{color:var(--ink-2);display:inline-flex;align-items:center;gap:6px}
.back a:hover{color:var(--hover)}
.doc-hero{display:flex;align-items:flex-start;gap:18px;margin:22px 0 0}
.doc-hero .app-icon{width:84px;height:84px;border-radius:22px}
.doc-hero .title{flex:1;min-width:0;padding-top:4px}
.doc-hero .badge{margin-top:8px}
.doc h1{margin:0;display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;line-height:1.05}
.doc h1 .cn{font-family:var(--serif);font-weight:700;font-size:clamp(40px,6vw,68px);letter-spacing:.1em;
  background:var(--title-cn);-webkit-background-clip:text;background-clip:text;color:transparent}
.doc h1 .en{font-family:var(--display);font-weight:500;font-size:clamp(18px,2.2vw,28px);letter-spacing:.04em;color:var(--accent-fg,var(--accent))}
.one-liner{margin:22px 0 0;max-width:40em;font-family:var(--serif);font-size:clamp(18px,2.1vw,23px);letter-spacing:.06em;color:var(--heading)}
.prose{margin:14px 0 0;max-width:68em;color:var(--ink-2);font-size:15.5px}
.prose + .prose{margin-top:10px}
.prose strong{color:var(--heading);font-weight:600}
.prose a,.callout a{color:var(--accent-fg,var(--accent));text-decoration:underline;text-decoration-color:color-mix(in srgb,var(--accent) 45%,transparent);text-underline-offset:3px}
.prose a:hover,.callout a:hover{color:var(--hover)}
.prose code,.callout code,.features code{font-family:var(--mono);font-size:.92em;padding:0 5px;border-radius:6px;background:var(--code-bg);border:1px solid var(--code-line);color:var(--code-ink);overflow-wrap:anywhere}
.doc .chips{margin-top:18px}
.doc-section{margin:40px 0 0}
.doc-section h2{margin:0 0 14px;text-align:left;letter-spacing:.06em;font-size:clamp(26px,3vw,34px)}
.doc .features{max-width:68em}
.callout{margin:16px 0 0;padding:12px 14px;border-radius:14px;border:1px solid var(--line);background:var(--glass);color:var(--ink-2);font-size:13.5px;line-height:1.75}
.callout strong{color:var(--heading);font-weight:600}
.callout-plan{border-color:color-mix(in srgb,var(--accent) 48%,var(--line))}
.plat-list{list-style:none;margin:0;padding:0;display:grid;gap:10px;max-width:68em}
.plat-list li{padding:12px 14px;border-radius:14px;background:var(--chip-bg);border:1px solid var(--chip-line);color:var(--ink-2);font-size:14px;line-height:1.65}
.plat-list strong{display:block;margin-bottom:2px;color:var(--ink);font-weight:600}
.doc .install{max-width:68em;margin-top:4px}
.file-list{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:8px;max-width:68em}
.file-list a{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 16px;padding:10px 12px;border-radius:12px;
  border:1px solid var(--code-line);background:var(--code-bg);font-family:var(--mono);font-size:12.5px;color:var(--code-ink)}
.file-list a span{font-family:var(--sans);color:var(--ink-3);font-size:12px}
.file-list a:hover{border-color:color-mix(in srgb,var(--accent) 45%,var(--code-line));color:var(--hover)}
.doc-cta{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 8px}
.sources{margin:26px 0 0;font-size:12.5px;color:var(--ink-3);line-height:1.75}
.sources a{color:var(--accent-fg,var(--accent))}
.sources a:hover{color:var(--hover)}
.doc .back + .back{margin-top:8px}

/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .9s cubic-bezier(.2,.8,.2,1),transform .9s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

/* responsive */
@media (max-width:1080px){
  .card{grid-column:span 3}
  .card-wide{grid-column:span 3}
  .grid .card:nth-child(3){grid-column:span 6}
  .services-grid{grid-template-columns:1fr}
  .services-grid .card{grid-column:auto}
}
@media (max-width:760px){
  .nav{padding:14px 16px}
  .nav-links{gap:10px}
  .nav-links a:not(.nav-gh){display:none}
  .brand-en{display:none}
  .grid{grid-template-columns:1fr;gap:16px}
  .card,.card-wide,.grid .card:nth-child(3){grid-column:auto}
  .card{padding:22px 18px 20px}
  .install-card{grid-template-columns:1fr;gap:26px}
  .services-grid{grid-template-columns:1fr}
  .services-grid .card{grid-column:auto}
  .stats{grid-template-columns:1fr 1fr}
  .stats div:nth-child(3){grid-column:1/-1;border-left:0;border-top:1px solid var(--line);margin-top:14px;padding-top:12px}
  .footer{grid-template-columns:1fr}
  .doc-hero{flex-wrap:wrap}
  .doc h1 .cn{letter-spacing:.06em}
  .h-cn{letter-spacing:.08em;padding-left:.08em}
  .h-en{letter-spacing:.32em;padding-left:.32em}
  .terminal pre{font-size:11.5px;padding:16px;white-space:pre-wrap;overflow-wrap:anywhere}
  .eyebrow{font-size:10.5px;letter-spacing:.1em;padding:7px 12px;white-space:nowrap}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}