/* ============================================================
   NeCode — marketing prototype
   System: warm off-white canvas · ink-navy type · coral accent
   (accent derived from the production icon: coral N on ink)
   ============================================================ */

/* ---------- Tokens ---------- */
:root{
  --bg: oklch(0.977 0.005 84);
  --surface: oklch(0.994 0.0025 84);
  --surface-2: oklch(0.958 0.007 84);
  --fg: oklch(0.235 0.024 268);
  --muted: oklch(0.45 0.02 266);
  --faint: oklch(0.553 0.016 266);
  --border: oklch(0.9 0.008 82);
  --border-2: oklch(0.845 0.01 82);

  --accent-fill: oklch(0.56 0.185 31);
  --accent-hover: oklch(0.515 0.18 30);
  --accent-ink: oklch(0.52 0.17 30);
  --accent-contrast: oklch(0.99 0.005 84);

  --amber: oklch(0.79 0.115 70);
  --ok: oklch(0.56 0.115 152);
  --ok-deep: oklch(0.44 0.1 152);
  --warn-deep: oklch(0.5 0.11 65);
  --del: oklch(0.54 0.16 25);
  --add-fg: oklch(0.42 0.1 152);
  --del-fg: oklch(0.5 0.15 25);

  --shadow-1: 0 1px 2px oklch(0.25 0.03 268 / 0.06);
  --shadow-win: 0 1px 2px oklch(0.25 0.03 268 / 0.06), 0 28px 64px -24px oklch(0.28 0.05 268 / 0.2);
  --shadow-card: 0 1px 2px oklch(0.25 0.03 268 / 0.05), 0 18px 44px -22px oklch(0.28 0.05 268 / 0.16);
  --shadow-menu: 0 4px 10px oklch(0.25 0.03 268 / 0.07), 0 24px 56px -18px oklch(0.28 0.05 268 / 0.24);

  --font-body: 'Inter', -apple-system, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', -apple-system, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Consolas, 'PingFang SC', 'Microsoft YaHei', monospace;

  color-scheme: light;
}
[data-theme="dark"]{
  --bg: oklch(0.172 0.014 265);
  --surface: oklch(0.207 0.014 265);
  --surface-2: oklch(0.245 0.015 265);
  --fg: oklch(0.928 0.007 84);
  --muted: oklch(0.72 0.012 80);
  --faint: oklch(0.56 0.014 80);
  --border: oklch(0.3 0.015 265);
  --border-2: oklch(0.365 0.016 265);

  --accent-fill: oklch(0.69 0.165 33);
  --accent-hover: oklch(0.735 0.155 36);
  --accent-ink: oklch(0.765 0.13 40);
  --accent-contrast: oklch(0.17 0.02 265);

  --ok: oklch(0.72 0.115 152);
  --ok-deep: oklch(0.78 0.1 152);
  --warn-deep: oklch(0.8 0.1 72);
  --del: oklch(0.72 0.13 25);
  --add-fg: oklch(0.8 0.1 152);
  --del-fg: oklch(0.76 0.11 25);

  --shadow-1: 0 1px 2px oklch(0 0 0 / 0.4);
  --shadow-win: 0 1px 2px oklch(0 0 0 / 0.5), 0 28px 64px -24px oklch(0 0 0 / 0.6);
  --shadow-card: 0 1px 2px oklch(0 0 0 / 0.4), 0 18px 44px -22px oklch(0 0 0 / 0.5);
  --shadow-menu: 0 4px 10px oklch(0 0 0 / 0.35), 0 24px 56px -18px oklch(0 0 0 / 0.6);

  color-scheme: dark;
}

/* ---------- Base ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{
  font-family:var(--font-body);
  font-size:16px;line-height:1.7;
  color:var(--fg);background:var(--bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:inline-block;vertical-align:middle}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;-webkit-tap-highlight-color:transparent}
a{color:inherit;text-decoration:none;-webkit-tap-highlight-color:transparent}
ul,ol{list-style:none}
code,pre,.mono{font-family:var(--font-mono)}
h1,h2,h3{font-family:var(--font-display);font-weight:600}
::selection{background:color-mix(in oklch, var(--accent-fill) 26%, transparent)}
:focus-visible{outline:2px solid var(--accent-fill);outline-offset:2px}
.ellip{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.container{max-width:1140px;margin-inline:auto;padding-inline:clamp(20px,4.5vw,40px)}

.skip{position:fixed;top:-100px;left:16px;z-index:200;background:var(--surface);border:1px solid var(--border-2);
  padding:10px 16px;border-radius:10px;font-size:14px;box-shadow:var(--shadow-menu);transition:top .15s}
.skip:focus-visible{top:14px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 22px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.005em;white-space:nowrap;
  transition:background .18s,border-color .18s,color .18s,transform .18s,box-shadow .18s;
}
.btn svg{width:17px;height:17px;flex:none}
.btn-lg{height:52px;padding:0 24px}
.btn-primary{
  background:var(--accent-fill);color:var(--accent-contrast);
  box-shadow:0 1px 2px oklch(0.4 0.12 30 / 0.28), inset 0 1px 0 oklch(1 0 0 / 0.14);
}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);
  box-shadow:0 3px 10px oklch(0.4 0.12 30 / 0.3), inset 0 1px 0 oklch(1 0 0 / 0.14)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);border-color:var(--border-2);color:var(--fg);box-shadow:var(--shadow-1)}
.btn-ghost:hover{border-color:color-mix(in oklch, var(--fg) 32%, var(--border-2));background:var(--surface-2)}
.btn-nav{height:38px;padding:0 16px;font-size:14px;border-radius:9px}

/* ---------- Sticky nav ---------- */
.site-nav{
  position:sticky;top:0;z-index:60;
  background:color-mix(in srgb, var(--bg) 84%, transparent);
  -webkit-backdrop-filter:blur(14px) saturate(1.35);backdrop-filter:blur(14px) saturate(1.35);
  border-bottom:1px solid transparent;transition:border-color .25s;
}
.site-nav.scrolled{border-bottom-color:var(--border)}
.nav-inner{display:flex;align-items:center;gap:34px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand img{border-radius:7px}
.brand-name{font-family:var(--font-display);font-weight:600;font-size:17px;letter-spacing:-.01em}
.nav-links{display:flex;gap:26px;margin-right:auto}
.nav-links a{font-size:14px;font-weight:500;color:var(--muted);padding:6px 2px;transition:color .15s}
.nav-links a:hover{color:var(--fg)}
.nav-links a.active{color:var(--fg)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-links + .nav-actions{margin-left:0}

.seg{display:inline-flex;padding:3px;border:1px solid var(--border);border-radius:999px;background:var(--surface)}
.seg-btn{height:28px;min-width:40px;padding:0 12px;border-radius:999px;font-size:12.5px;font-weight:500;color:var(--muted);transition:background .15s,color .15s}
.seg-btn:hover{color:var(--fg)}
.seg-btn.is-on{background:var(--fg);color:var(--bg)}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;flex:none;
  width:38px;height:38px;border-radius:10px;border:1px solid var(--border);
  background:var(--surface);color:var(--muted);transition:color .15s,border-color .15s;
}
.icon-btn:hover{color:var(--fg);border-color:var(--border-2)}
.icon-btn svg{width:18px;height:18px}
[data-theme="light"] .theme-btn .i-sun{display:none}
[data-theme="dark"] .theme-btn .i-moon{display:none}

.burger{display:none}
.burger .i-close{display:none}
.site-nav.open .burger .i-burger{display:none}
.site-nav.open .burger .i-close{display:block}

.m-menu{
  position:absolute;top:100%;left:0;right:0;display:none;
  background:var(--bg);border-bottom:1px solid var(--border);
  padding:6px 20px 20px;box-shadow:var(--shadow-card);
}
.m-menu:not([hidden]){display:block}
.m-links a{display:flex;align-items:center;min-height:50px;padding:4px 6px;font-size:16px;font-weight:500;border-bottom:1px solid var(--border)}
.m-links a.m-dl{color:var(--accent-ink)}
.m-controls{display:flex;align-items:center;gap:12px;padding-top:16px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:clamp(60px,9vw,104px) 0 clamp(56px,8vw,92px)}
.hero-glow{
  position:absolute;left:50%;top:34%;transform:translateX(-50%);
  width:min(920px,120vw);height:520px;pointer-events:none;
  background:radial-gradient(closest-side, color-mix(in oklch, var(--accent-fill) 9%, transparent), transparent 72%);
}
.hero-inner{position:relative;display:flex;flex-direction:column;align-items:center;text-align:center;gap:22px;max-width:920px}
.eyebrow{display:flex;align-items:center;gap:12px;font-size:13.5px;color:var(--muted);flex-wrap:wrap;justify-content:center}
.eyebrow-tag{
  font-size:11.5px;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--accent-ink);
  border:1px solid color-mix(in oklch, var(--accent-fill) 32%, var(--border));
  background:color-mix(in oklch, var(--accent-fill) 6%, var(--surface));
  padding:5px 11px;border-radius:999px;
}
.eyebrow-sep{width:22px;height:1px;background:var(--border-2)}
.hero-title{
  font-size:clamp(2.05rem, 1.15rem + 4.1vw, 3.5rem);
  line-height:1.16;letter-spacing:-.015em;text-wrap:balance;max-width:19em;
}
.hero-title em{font-style:normal;color:var(--accent-ink)}
.hero-sub{font-size:clamp(15.5px,1.6vw,17px);line-height:1.78;color:var(--muted);max-width:640px}
.cta-row{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:6px}
.split{position:relative;display:inline-flex}
.split .btn:first-child{border-radius:10px 0 0 10px}
.btn-caret{padding:0 13px;border-radius:0 10px 10px 0;border-left:1px solid color-mix(in oklch, var(--accent-contrast) 24%, transparent)}
.btn-caret svg{transition:transform .18s}
.btn-caret[aria-expanded="true"] svg{transform:rotate(180deg)}
.cta-note{font-size:12.5px;color:var(--faint);letter-spacing:.02em}

/* Download popover */
.menu{
  position:absolute;top:calc(100% + 10px);left:0;z-index:70;
  min-width:300px;max-width:min(340px,92vw);
  background:var(--surface);border:1px solid var(--border-2);border-radius:14px;
  padding:6px;box-shadow:var(--shadow-menu);text-align:left;
  animation:menuIn .16s ease;transform-origin:top left;
}
.menu-item{display:flex;align-items:center;gap:10px;width:100%;min-height:48px;padding:0 12px;border-radius:9px;font-size:14.5px;transition:background .12s}
.menu-item:hover{background:var(--surface-2)}
.mi-os{font-weight:600;width:78px;flex:none;text-align:left}
.mi-arch{flex:1;text-align:left;font-size:12.5px;color:var(--muted)}
.mi-rec{display:none;font-size:11px;color:var(--accent-ink);border:1px solid color-mix(in oklch, var(--accent-fill) 38%, var(--border));
  background:color-mix(in oklch, var(--accent-fill) 7%, var(--surface));padding:2px 8px;border-radius:999px;white-space:nowrap}
.menu-item.is-rec .mi-rec{display:inline-block}
.menu-note{font-size:12px;color:var(--faint);padding:9px 12px 5px;border-top:1px solid var(--border);margin-top:5px}

/* ---------- Product window mock ---------- */
.hero-visual{margin-top:clamp(40px,6vw,62px);max-width:1080px}
.win{
  background:var(--surface);border:1px solid var(--border-2);border-radius:16px;
  box-shadow:var(--shadow-win);overflow:hidden;text-align:left;
  font-size:13px;line-height:1.55;
}
.win-bar{
  display:flex;align-items:center;gap:14px;height:44px;padding:0 16px;
  border-bottom:1px solid var(--border);
  background:color-mix(in oklch, var(--surface-2) 55%, var(--surface));
}
.dots{display:flex;gap:6px;flex:none}
.dots i{width:10px;height:10px;border-radius:999px}
.dots i:nth-child(1){background:oklch(0.68 0.14 25)}
.dots i:nth-child(2){background:oklch(0.8 0.12 85)}
.dots i:nth-child(3){background:oklch(0.72 0.13 145)}
.win-app{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;flex:none}
.win-app img{border-radius:4px}
.win-loc{font-size:12px;color:var(--faint);margin-inline:auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.win-right{display:flex;align-items:center;gap:8px;flex:none}

.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:11.5px;font-weight:500;padding:3px 9px;border-radius:999px;
  border:1px solid var(--border);color:var(--muted);background:var(--surface);white-space:nowrap;
}
.chip svg{width:12px;height:12px}
.chip-run{color:var(--accent-ink);border-color:color-mix(in oklch, var(--accent-fill) 40%, var(--border));
  background:color-mix(in oklch, var(--accent-fill) 8%, var(--surface))}
.chip-ok{color:var(--ok-deep);border-color:color-mix(in oklch, var(--ok) 42%, var(--border));
  background:color-mix(in oklch, var(--ok) 9%, var(--surface))}
.chip-warn{color:var(--warn-deep);border-color:color-mix(in oklch, var(--amber) 55%, var(--border));
  background:color-mix(in oklch, var(--amber) 15%, var(--surface))}
.chip-off{color:var(--faint);border-style:dashed;background:transparent}
.pulse{width:7px;height:7px;border-radius:999px;background:var(--accent-fill);animation:pulse 1.9s ease-out infinite}

.win-body{display:grid;grid-template-columns:208px minmax(0,1fr) 250px;min-height:520px}
.pane{min-width:0}
.pane-l{
  padding:14px;border-right:1px solid var(--border);
  background:color-mix(in oklch, var(--surface-2) 42%, var(--surface));
  display:flex;flex-direction:column;gap:20px;
}
.sb-label{font-size:11px;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--faint);margin-bottom:8px}
.sb-item{display:flex;align-items:center;gap:9px;padding:7px 9px;border-radius:8px;color:var(--muted);font-size:12.5px;font-weight:500}
.sb-item svg{width:15px;height:15px;flex:none}
.sb-item.is-on{background:color-mix(in oklch, var(--accent-fill) 9%, var(--surface));color:var(--fg)}
.sb-item.is-on svg{color:var(--accent-ink)}
.sb-badge{margin-left:auto;font-size:10.5px;color:var(--faint);border:1px solid var(--border);border-radius:999px;padding:0 6px;background:var(--surface)}
.sb-task{display:flex;align-items:center;gap:8px;padding:7px 9px;border-radius:8px;font-size:12.3px;color:var(--muted)}
.sb-task.is-on{background:var(--surface);color:var(--fg);box-shadow:inset 0 0 0 1px var(--border)}
.st-dot{width:7px;height:7px;border-radius:999px;flex:none}
.st-dot.run{background:var(--accent-fill)}
.st-dot.wait{background:var(--amber)}
.st-dot.ok{background:var(--ok)}

.pane-c{display:flex;flex-direction:column;border-right:1px solid var(--border)}
.sess-head{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--border)}
.sess-title{font-size:13px;font-weight:600;flex:1;min-width:0}
.mk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:5px;
  font-size:11.5px;font-weight:500;padding:5px 11px;border-radius:7px;
  border:1px solid var(--border-2);background:var(--surface);color:var(--muted);white-space:nowrap;
}
.mk-btn-acc{background:var(--accent-fill);color:var(--accent-contrast);border-color:transparent}

.tl{flex:1;display:flex;flex-direction:column;gap:11px;padding:14px 16px;overflow:hidden}
.tl-msg{display:flex;gap:9px;align-items:flex-start}
.tl-who{flex:none;width:26px;height:26px;border-radius:999px;background:var(--fg);color:var(--bg);
  font-size:10.5px;font-weight:600;display:inline-flex;align-items:center;justify-content:center}
.tl-msg p{
  background:color-mix(in oklch, var(--surface-2) 70%, var(--surface));
  border:1px solid var(--border);padding:8px 12px;border-radius:10px;border-top-left-radius:3px;
  font-size:12.5px;min-width:0;
}
.tl-card{border:1px solid var(--border);border-radius:10px;padding:10px 12px;background:var(--surface)}
.tl-card-h{font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin-bottom:7px}
.plan li{display:flex;gap:8px;padding:3.5px 0;font-size:12.3px;color:var(--muted)}
.plan li::before{font-family:var(--font-mono);width:14px;flex:none;content:"○";color:var(--faint)}
.plan li.done::before{content:"✓";color:var(--ok)}
.plan li.cur{color:var(--fg);font-weight:500}
.plan li.cur::before{content:"▸";color:var(--accent-ink)}
.tl-tool{display:flex;align-items:center;gap:8px;font-size:12.3px;color:var(--muted);min-width:0}
.tl-tool code{font-size:11.8px;color:var(--fg);background:var(--surface-2);padding:2px 7px;border-radius:6px}
.tl-tool .delta{margin-left:auto}
.tt{width:16px;height:16px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;font-size:10px;flex:none}
.tt.ok{color:var(--ok);background:color-mix(in oklch, var(--ok) 12%, var(--surface))}
.tt.run{color:var(--accent-ink);background:color-mix(in oklch, var(--accent-fill) 10%, var(--surface))}
.tt-verb{color:var(--faint);flex:none}
.delta{display:inline-flex;gap:6px;font-size:11px;font-weight:500;flex:none}
.delta .plus{color:var(--ok);font-weight:600}
.delta .minus{color:var(--del);font-weight:600}
.difflet{border:1px solid var(--border);border-radius:10px;overflow:hidden}
.dl-bar{font-size:11px;color:var(--faint);padding:6px 12px;background:color-mix(in oklch, var(--surface-2) 60%, var(--surface));border-bottom:1px solid var(--border)}
.difflet pre,.rv-main pre{margin:0;padding:8px 0;font-size:11.6px;line-height:1.65;overflow:hidden}
.ln{display:block;padding:0 12px;white-space:pre;overflow:hidden;text-overflow:ellipsis}
.ln.add{background:color-mix(in oklch, var(--ok) 10%, var(--surface));color:var(--add-fg)}
.ln.del{background:color-mix(in oklch, var(--del) 9%, var(--surface));color:var(--del-fg)}
.ln.ctx{color:var(--faint)}
.tl-note{font-size:11.8px;color:var(--faint);padding-left:24px}
.tl-done{
  border:1px solid color-mix(in oklch, var(--ok) 35%, var(--border));
  background:color-mix(in oklch, var(--ok) 6%, var(--surface));
  border-radius:10px;padding:10px 12px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.tl-done p{font-size:12.3px;font-weight:500;flex:1;min-width:0}
.tl-acts{display:flex;gap:8px;flex:none}
.mk-input{
  margin:0 16px 14px;border:1px solid var(--border-2);border-radius:12px;padding:9px 10px 9px 14px;
  display:flex;align-items:center;gap:10px;color:var(--faint);font-size:12.5px;background:var(--surface);
}
.mk-input .ellip{flex:1}
.mk-send{width:30px;height:30px;border-radius:8px;background:var(--fg);color:var(--bg);display:inline-flex;align-items:center;justify-content:center;flex:none}
.mk-send svg{width:15px;height:15px}

.pane-r{
  padding:14px;display:flex;flex-direction:column;gap:14px;
  background:color-mix(in oklch, var(--surface-2) 42%, var(--surface));
}
.env-block{border-bottom:1px solid var(--border);padding-bottom:14px}
.env-block:last-child{border-bottom:0;padding-bottom:0}
.env-h{font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin-bottom:9px;display:flex;align-items:center;gap:8px}
.env-h .delta{margin-left:auto}
.kv{display:flex;gap:8px;align-items:baseline;padding:3px 0;font-size:12px}
.kv .k{color:var(--faint);width:58px;flex:none}
.kv code{font-size:11.5px;color:var(--fg)}
.env-note{
  font-size:11.3px;color:var(--faint);line-height:1.6;margin-top:8px;
  padding:7px 10px;border-radius:8px;border:1px dashed var(--border-2);
}
.file-row{display:flex;align-items:center;gap:8px;padding:4px 0;font-size:11.6px}
.file-row code{flex:1;color:var(--muted)}
.perm{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:4.5px 0;font-size:12px;color:var(--muted)}

/* ---------- Sections ---------- */
.section{padding-block:clamp(76px,10vw,126px);border-top:1px solid var(--border)}
.section-head{max-width:740px;margin-bottom:clamp(40px,6vw,60px)}
.section-head.center{margin-inline:auto;text-align:center}
.kicker{
  display:flex;align-items:center;gap:12px;
  font-size:12.5px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted);margin-bottom:18px;
}
.section-head.center .kicker{justify-content:center}
.k-num{color:var(--accent-ink)}
.k-num::after{content:"";display:inline-block;width:26px;height:1px;background:var(--border-2);margin-left:12px;vertical-align:middle}
.title{font-size:clamp(1.55rem, 1.08rem + 2.3vw, 2.3rem);line-height:1.25;letter-spacing:-.012em;text-wrap:balance}
.lede{font-size:clamp(15px,1.5vw,16.5px);color:var(--muted);margin-top:14px;max-width:640px;line-height:1.78}
.section-head.center .lede{margin-inline:auto}

/* ---------- Value ---------- */
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:44px 32px}
.v-card{border-top:1px solid var(--border-2);padding-top:22px}
.v-ic{width:22px;height:22px;color:var(--fg);margin-bottom:14px}
.v-card h3{font-size:16.5px;margin-bottom:8px;letter-spacing:-.005em}
.v-card p{font-size:14px;color:var(--muted);line-height:1.74}

/* ---------- How it works ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:36px 32px;counter-reset:step}
.step{border-top:1px solid var(--border-2);padding-top:20px}
.step-n{font-size:13px;font-weight:600;color:var(--accent-ink);margin-bottom:12px;letter-spacing:.08em}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted);line-height:1.74}

.loop-band{
  margin-top:clamp(48px,7vw,72px);
  display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(28px,4.5vw,60px);align-items:center;
  border:1px solid var(--border-2);border-radius:20px;background:var(--surface);
  padding:clamp(26px,4.5vw,46px);box-shadow:var(--shadow-card);
}
.lb-tag{font-size:11.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-ink)}
.lb-copy h3{font-size:clamp(19px,2.2vw,22px);margin:10px 0 12px;letter-spacing:-.008em}
.lb-copy p{font-size:14.5px;color:var(--muted);line-height:1.78}
.lb-visual{display:flex;flex-direction:column;gap:16px;min-width:0}
.lb-cycle{position:relative;display:flex;align-items:center;justify-content:center;gap:10px;padding-bottom:36px;flex-wrap:nowrap}
.lb-node{
  border:1px solid var(--border-2);border-radius:999px;padding:9px 18px;
  font-size:13px;font-weight:500;background:color-mix(in oklch, var(--surface-2) 55%, var(--surface));
  white-space:nowrap;
}
.lb-arrow{width:20px;height:20px;color:var(--faint);flex:none}
.lb-return{position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:min(250px,84%);height:28px;color:var(--accent-ink)}
.lb-props{display:flex;align-items:center;justify-content:center;gap:12px;font-size:11.5px;color:var(--faint);flex-wrap:wrap}
.lb-props i{width:3px;height:3px;border-radius:999px;background:var(--border-2)}

/* ---------- Surfaces (tabs) ---------- */
.tabs{
  display:flex;gap:4px;border-bottom:1px solid var(--border-2);
  margin-bottom:clamp(30px,4.5vw,46px);
  overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;
}
.tabs::-webkit-scrollbar{display:none}
.tab{
  flex:none;display:inline-flex;align-items:center;gap:8px;
  height:50px;padding:0 18px;font-size:14.5px;font-weight:500;color:var(--muted);
  border-bottom:2px solid transparent;margin-bottom:-1px;transition:color .15s,border-color .15s;
}
.tab:hover{color:var(--fg)}
.tab.is-on{color:var(--fg);border-bottom-color:var(--accent-fill)}
.panel{display:grid;grid-template-columns:5fr 7fr;gap:clamp(30px,5vw,64px);align-items:center}
.panel[hidden]{display:none}
.panel:not([hidden]){animation:panelIn .32s ease}
.panel-copy h3{font-size:clamp(19px,2.2vw,21px);margin-bottom:12px;letter-spacing:-.008em}
.panel-copy > p{font-size:14.5px;color:var(--muted);line-height:1.78}
.checks{margin-top:18px}
.checks li{position:relative;padding:6px 0 6px 27px;font-size:14px;font-weight:500}
.checks li::before{content:"✓";position:absolute;left:2px;top:6px;color:var(--ok);font-weight:600;font-family:var(--font-mono)}
.panel-shot{min-width:0}

.win-mini{
  background:var(--surface);border:1px solid var(--border-2);border-radius:14px;
  box-shadow:var(--shadow-card);overflow:hidden;font-size:12.5px;line-height:1.55;text-align:left;
}
.wm-bar{
  display:flex;align-items:center;gap:9px;padding:10px 14px;
  border-bottom:1px solid var(--border);font-size:12px;font-weight:600;
  background:color-mix(in oklch, var(--surface-2) 55%, var(--surface));
}
.wm-dot{width:8px;height:8px;border-radius:999px;background:var(--accent-fill);flex:none}
.win-mini .tl{padding:14px;gap:10px}

.ask{
  border:1px solid color-mix(in oklch, var(--accent-fill) 35%, var(--border));
  background:color-mix(in oklch, var(--accent-fill) 5%, var(--surface));
  border-radius:10px;padding:10px 12px;display:flex;flex-direction:column;gap:8px;
}
.ask-h{display:flex;align-items:center;gap:7px;font-size:12px;font-weight:600}
.ask-h svg{width:14px;height:14px;color:var(--accent-ink);flex:none}
.ask code{display:block;font-size:11.8px;background:var(--surface);border:1px solid var(--border);padding:6px 9px;border-radius:7px}
.ask-acts{display:flex;gap:8px;flex-wrap:wrap}

.wf-stats{display:flex;align-items:center;gap:12px;padding:12px 14px;border-bottom:1px solid var(--border);font-size:11.5px;color:var(--muted);flex-wrap:wrap}
.wf-stats b{color:var(--fg);font-weight:600;margin-left:3px}
.wf-stats i{width:1px;height:12px;background:var(--border-2)}
.wf-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:14px}
.wf-card{
  border:1px solid var(--border);border-radius:10px;padding:11px 12px;
  display:flex;flex-direction:column;gap:8px;align-items:flex-start;
  background:color-mix(in oklch, var(--surface-2) 32%, var(--surface));min-width:0;
}
.wf-t{font-size:12.4px;font-weight:600;max-width:100%}
.wf-m{font-size:10.8px;color:var(--faint);max-width:100%}
.wf-new{align-items:center;justify-content:center;flex-direction:row;gap:7px;border-style:dashed;background:none;color:var(--faint);font-size:12px;min-height:74px}

.rounds{padding:12px 14px;display:flex;flex-direction:column;gap:8px}
.round{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;
  border:1px solid var(--border);border-radius:10px;padding:9px 12px;background:var(--surface);
}
.round.is-cur{border-color:color-mix(in oklch, var(--accent-fill) 45%, var(--border));
  background:color-mix(in oklch, var(--accent-fill) 5%, var(--surface))}
.round.is-q{opacity:.78;border-style:dashed}
.r-n{font-size:11px;color:var(--faint)}
.round.is-cur .r-n{color:var(--accent-ink);font-weight:600}
.r-t{font-size:12.3px}
.bar{grid-column:1 / -1;height:4px;border-radius:999px;background:var(--surface-2);overflow:hidden}
.bar i{display:block;height:100%;width:62%;border-radius:inherit;background:var(--accent-fill)}
.rounds-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 14px;border-top:1px solid var(--border);flex-wrap:wrap}
.rounds-foot p{font-size:11px;color:var(--faint)}

.rv{display:grid;grid-template-columns:150px minmax(0,1fr)}
.rv-files{border-right:1px solid var(--border);padding:10px;display:flex;flex-direction:column;gap:4px}
.rv-f{display:flex;align-items:center;gap:6px;padding:7px 9px;border-radius:8px;color:var(--muted)}
.rv-f code{flex:1;font-size:11.3px;min-width:0}
.rv-f .delta{font-size:10px}
.rv-f.is-on{background:color-mix(in oklch, var(--accent-fill) 8%, var(--surface));color:var(--fg)}
.rv-main{display:flex;flex-direction:column;min-width:0}
.rv-main pre{flex:1;padding:10px 0}
.rv-acts{padding:10px 12px;border-top:1px solid var(--border);display:flex;gap:8px}

.wt-list{padding:12px 14px;display:flex;flex-direction:column;gap:8px}
.wt-row{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1.25fr) auto;gap:10px;align-items:center;
  border:1px solid var(--border);border-radius:10px;padding:10px 12px;background:var(--surface);
}
.wt-row > code{font-size:11.6px;font-weight:500}
.chip-branch{font-size:10.8px;color:var(--muted);background:var(--surface-2);padding:3px 8px;border-radius:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.wt-note{padding:11px 14px;border-top:1px solid var(--border);font-size:11px;color:var(--faint)}

/* ---------- Control & extensibility ---------- */
.ctrl-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,6vw,72px)}
.ctrl-col h3{font-size:clamp(18px,2vw,20px);margin-bottom:10px;letter-spacing:-.008em}
.ctrl-col > p{font-size:14.5px;color:var(--muted);line-height:1.78;margin-bottom:22px}
.perm-panel{border:1px solid var(--border-2);border-radius:14px;background:var(--surface);overflow:hidden;box-shadow:var(--shadow-1)}
.pp-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 16px;border-bottom:1px solid var(--border)}
.pp-k{font-size:13.5px;font-weight:500}
.pp-v{display:inline-flex;align-items:center;gap:7px;font-size:12.3px;color:var(--muted);
  border:1px solid var(--border);border-radius:8px;padding:5px 10px;
  background:color-mix(in oklch, var(--surface-2) 50%, var(--surface));white-space:nowrap}
.pp-v svg{width:13px;height:13px;color:var(--faint)}
.pp-note{padding:12px 16px;font-size:12px;color:var(--faint);background:color-mix(in oklch, var(--surface-2) 45%, var(--surface))}
.ext-stack{border:1px solid var(--border-2);border-radius:14px;background:var(--surface);overflow:hidden;box-shadow:var(--shadow-1)}
.ext-row{display:grid;grid-template-columns:76px minmax(0,1fr);gap:12px;padding:15px 16px;border-bottom:1px solid var(--border);align-items:start}
.ext-row:last-child,.pp-row:last-of-type{border-bottom:0}
.ext-k{font-size:11.5px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);padding-top:7px}
.chip-line{display:flex;flex-wrap:wrap;gap:8px}
.chip-line .chip{font-size:12px;padding:5px 12px}

/* ---------- Download ---------- */
.dl-section{background:color-mix(in oklch, var(--accent-fill) 4%, var(--bg))}
.plat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(172px,1fr));gap:12px;max-width:1020px;margin-inline:auto}
.plat-card{
  position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:3px;
  border:1px solid var(--border-2);border-radius:14px;padding:18px;min-height:98px;
  background:var(--surface);box-shadow:var(--shadow-1);
  transition:border-color .18s,transform .18s,box-shadow .18s;
}
.plat-card:hover{border-color:color-mix(in oklch, var(--accent-fill) 50%, var(--border-2));transform:translateY(-2px);box-shadow:var(--shadow-card)}
.pc-os{font-size:15.5px;font-weight:600;font-family:var(--font-display)}
.pc-arch{font-size:12px;color:var(--muted)}
.pc-ic{position:absolute;right:16px;bottom:15px;width:18px;height:18px;color:var(--faint);transition:color .18s,transform .18s}
.plat-card:hover .pc-ic{color:var(--accent-ink);transform:translateY(2px)}
.pc-rec{
  display:none;position:absolute;top:12px;right:12px;font-size:10.5px;font-weight:500;color:var(--accent-ink);
  border:1px solid color-mix(in oklch, var(--accent-fill) 40%, var(--border));
  background:color-mix(in oklch, var(--accent-fill) 7%, var(--surface));
  padding:2px 8px;border-radius:999px;
}
.plat-card.is-rec{border-color:color-mix(in oklch, var(--accent-fill) 55%, var(--border-2))}
.plat-card.is-rec .pc-rec{display:inline-block}
.dl-note{text-align:center;margin-top:24px;font-size:12.5px;color:var(--faint)}

/* ---------- Footer ---------- */
.foot{border-top:1px solid var(--border);padding:46px 0 30px}
.foot-top{display:flex;justify-content:space-between;align-items:flex-start;gap:28px;flex-wrap:wrap;
  padding-bottom:28px;border-bottom:1px solid var(--border);margin-bottom:20px}
.foot-brand{display:flex;gap:12px;align-items:flex-start}
.foot-brand img{border-radius:7px;margin-top:2px}
.foot-brand .brand-name{font-size:15.5px}
.foot-tag{font-size:13px;color:var(--muted);margin-top:3px;max-width:34em}
.foot-links{display:flex;flex-wrap:wrap;gap:4px 24px;align-items:center}
.foot-links a{font-size:13.5px;color:var(--muted);padding:8px 0;transition:color .15s}
.foot-links a:hover{color:var(--fg)}
.foot-bot{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12px;color:var(--faint)}
.foot-link{color:var(--muted);transition:color .15s}
.foot-link:hover{color:var(--accent-ink)}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:30px;z-index:90;transform:translate(-50%,14px);opacity:0;
  background:var(--fg);color:var(--bg);font-size:13.5px;font-weight:500;
  padding:11px 18px;border-radius:10px;box-shadow:var(--shadow-menu);
  pointer-events:none;transition:transform .25s ease,opacity .25s ease;max-width:min(88vw,480px);text-align:center;
}
.toast.show{transform:translate(-50%,0);opacity:1}

/* ---------- Motion ---------- */
html.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .55s ease,transform .55s ease}
html.js .reveal.in-view{opacity:1;transform:none}
html.js .reveal-group .reveal:nth-child(2){transition-delay:.07s}
html.js .reveal-group .reveal:nth-child(3){transition-delay:.14s}
html.js .reveal-group .reveal:nth-child(4){transition-delay:.21s}
html.js .reveal-group .reveal:nth-child(5){transition-delay:.28s}
html.js .hero-inner > .reveal:nth-child(2){transition-delay:.05s}
html.js .hero-inner > .reveal:nth-child(3){transition-delay:.1s}
html.js .hero-inner > .reveal:nth-child(4){transition-delay:.16s}
html.js .hero-inner > .reveal:nth-child(5){transition-delay:.22s}
html.js .hero-visual.reveal{transition-delay:.24s}
@keyframes menuIn{from{opacity:0;transform:scale(.98) translateY(-4px)}to{opacity:1;transform:none}}
@keyframes panelIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes pulse{0%{box-shadow:0 0 0 0 color-mix(in oklch, var(--accent-fill) 38%, transparent)}75%{box-shadow:0 0 0 6px transparent}100%{box-shadow:0 0 0 0 transparent}}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  html.js .reveal{opacity:1;transform:none}
}

/* ---------- Touch targets ---------- */
@media (pointer: coarse){
  button,a{min-width:44px;min-height:44px}
  .seg-btn{height:44px;min-width:44px}
  .icon-btn{width:44px;height:44px}
  .btn-nav{height:44px}
  .tab{height:52px}
  .foot-links a{padding:12px 0}
  .foot-bot a{padding:12px 0}
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width:1080px){
  .value-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:980px){
  .win-body{grid-template-columns:minmax(0,1fr) 236px}
  .pane-l{display:none}
}
@media (max-width:900px){
  .nav-inner{gap:16px;height:60px}
  .nav-links{display:none}
  .burger{display:inline-flex}
  .nav-actions{margin-left:auto}
  .nav-actions .seg,.nav-actions .theme-btn{display:none}
  html{scroll-padding-top:76px}
  .ctrl-grid{grid-template-columns:1fr;gap:52px}
  .loop-band{grid-template-columns:1fr;gap:26px}
  .panel{grid-template-columns:1fr;gap:28px;align-items:start}
}
@media (max-width:720px){
  /* Hero mock becomes art-directed stacked cards instead of a shrunken desktop */
  .hide-sm{display:none !important}
  .win{background:transparent;border:0;box-shadow:none;border-radius:0;overflow:visible}
  .win-bar{display:none}
  .win-body{display:flex;flex-direction:column;gap:14px;min-height:0}
  .pane-c,.pane-r{
    border:1px solid var(--border-2);border-radius:14px;background:var(--surface);
    box-shadow:var(--shadow-card);
  }
  .pane-r{background:var(--surface)}
  .env-note{display:none}
}
@media (max-width:620px){
  .value-grid{grid-template-columns:1fr;gap:32px}
  .steps{grid-template-columns:1fr;gap:28px}
  .win-loc{display:none}
  .cta-row{flex-direction:column;align-items:stretch;width:100%}
  .split{width:100%}
  .split .btn:first-child{flex:1}
  .menu{width:100%;min-width:0}
  .lb-node{padding:8px 13px;font-size:12px}
  .lb-arrow{width:16px}
}
@media (max-width:520px){
  .rv{grid-template-columns:1fr}
  .rv-files{flex-direction:row;border-right:0;border-bottom:1px solid var(--border);overflow-x:auto;padding:8px 10px}
  .rv-f{flex:none}
  .rv-f code{min-width:max-content}
  .wt-row{grid-template-columns:minmax(0,1fr) auto}
  .wt-row .chip-branch{display:none}
  .wf-grid{grid-template-columns:1fr}
  .wf-new{min-height:52px}
  .pp-row{flex-wrap:wrap}
  .ext-row{grid-template-columns:1fr;gap:8px}
  .ext-k{padding-top:0}
}


/* Real NeCode product capture in the approved prototype frame */
.hero-shot-frame {
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: 16px;
  box-shadow: var(--shadow-win);
  overflow: hidden;
}
.hero-shot-media {
  display: none;
  width: 100%;
}
html[data-lang="zh"][data-theme="light"] .hero-shot-media[data-shot-lang="zh"][data-shot-theme="light"],
html[data-lang="en"][data-theme="light"] .hero-shot-media[data-shot-lang="en"][data-shot-theme="light"],
html[data-lang="zh"][data-theme="dark"] .hero-shot-media[data-shot-lang="zh"][data-shot-theme="dark"],
html[data-lang="en"][data-theme="dark"] .hero-shot-media[data-shot-lang="en"][data-shot-theme="dark"] {
  display: block;
}
.hero-shot-media img {
  display: block;
  width: 100%;
  height: auto;
}
@media (max-width: 720px) {
  .hero-shot-frame {
    background: var(--surface);
    border: 1px solid var(--border-2);
    border-radius: 14px;
    box-shadow: var(--shadow-card);
    overflow: hidden;
  }
}