@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 400; font-display: swap; src: url("assets/fonts/ibm-plex-sans-400.ttf") format("truetype"); }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 500; font-display: swap; src: url("assets/fonts/ibm-plex-sans-500.ttf") format("truetype"); }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 600; font-display: swap; src: url("assets/fonts/ibm-plex-sans-600.ttf") format("truetype"); }
@font-face { font-family: "IBM Plex Sans"; font-style: normal; font-weight: 700; font-display: swap; src: url("assets/fonts/ibm-plex-sans-700.ttf") format("truetype"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 400; font-display: swap; src: url("assets/fonts/ibm-plex-mono-400.ttf") format("truetype"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 500; font-display: swap; src: url("assets/fonts/ibm-plex-mono-500.ttf") format("truetype"); }

:root {
  color-scheme: dark light;
  --bg: #0a0a0b;
  --bg2: #141416;
  --card: #131315;
  --card2: #17181b;
  --border: #1c1c20;
  --border2: #26262a;
  --chip: #202023;
  --ink: #f5f5f5;
  --ink2: #c9c9cb;
  --ink3: #909092;
  --ink4: #5e5e60;
  --acc: #f4f4f6;
  --on: #0a0a0b;
  --ok: #4f9d63;
  --warn: #c0913f;
  --lift: 0 2px 30px rgb(0 0 0 / 0.5);
  --max: 1160px;
  font-family: "IBM Plex Sans", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #ffffff;
  --bg2: #f3f4f6;
  --card: #fafbfc;
  --card2: #f3f4f6;
  --border: #e6e8eb;
  --border2: #dcdfe3;
  --chip: #eceef1;
  --ink: #1c2024;
  --ink2: #3d434a;
  --ink3: #60646c;
  --ink4: #8b9097;
  --acc: #1c2024;
  --on: #ffffff;
  --ok: #218358;
  --warn: #ab6400;
  --lift: 0 1px 2px rgb(17 24 28 / 0.05), 0 14px 40px rgb(17 24 28 / 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-height: 100dvh; background: var(--bg); color: var(--ink); font-size: 15px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #3a3a40; border: 3px solid transparent; border-radius: 9px; background-clip: padding-box; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button, a, input, textarea { outline-offset: 4px; }
:focus-visible { outline: 2px solid var(--ink3); }
.mono, .kicker, .hero-badge, .hero-meta, .stats strong, .scope-label, .pill { font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace; }

.topbar { position: sticky; top: 0; z-index: 20; background: var(--bg); border-bottom: 1px solid var(--border); }
.topbar-inner { max-width: var(--max); height: 60px; margin: 0 auto; padding: 0 32px; display: flex; align-items: center; gap: 28px; }
.brand, .site-nav, .top-actions, .hero-actions, .footer-links, .footer-bottom { display: flex; align-items: center; }
.brand { flex: none; gap: 9px; font-size: 14.5px; font-weight: 600; letter-spacing: 0; }
.brand-mark { width: 22px; height: 22px; display: grid; place-items: center; border-radius: 7px; background: var(--acc); }
.brand-mark::after { content: ""; width: 9px; height: 9px; border-radius: 2px; background: var(--on); }
.site-nav { flex: 1; min-width: 0; gap: 22px; color: var(--ink3); font-size: 13.5px; }
.site-nav a:hover { color: var(--ink); }
.top-actions { flex: none; gap: 8px; }
.control-button, .menu-button { height: 30px; min-width: 30px; padding: 0 10px; border: 1px solid var(--border2); border-radius: 8px; background: transparent; color: var(--ink3); cursor: pointer; }
.control-button:hover, .menu-button:hover { background: var(--bg2); color: var(--ink); }
.menu-button { display: none; }
.button { min-height: 42px; padding: 0 18px; display: inline-flex; align-items: center; justify-content: center; border: 0; border-radius: 10px; background: var(--acc); color: var(--on); font-weight: 600; white-space: nowrap; cursor: pointer; box-shadow: var(--lift); }
.command-button { gap: 10px; }
.command-button span { font-size: 15px; font-weight: 500; }
.command-button b { font-weight: 600; }
.button:hover { opacity: 0.88; }
.button:active, .control-button:active, .menu-button:active { transform: translateY(1px); }
.button-small { min-height: 30px; padding-inline: 12px; border-radius: 8px; box-shadow: none; font-size: 13px; }
.button-ghost { border: 1px solid var(--border2); background: transparent; color: var(--ink2); box-shadow: none; }
.button-ghost:hover { background: var(--bg2); color: var(--ink); }

.site { max-width: var(--max); margin: 0 auto; padding: 0 32px; }
.hero { max-width: 880px; padding: 104px 0 100px; display: flex; flex-direction: column; align-items: flex-start; gap: 26px; }
.hero-badge { height: 26px; padding: 0 11px; display: inline-flex; align-items: center; gap: 8px; border-radius: 999px; background: var(--chip); color: var(--ink2); font-size: 11px; letter-spacing: 0.04em; }
.hero-badge i { width: 5px; height: 5px; border-radius: 50%; background: var(--ok); animation: pulseDot 2.4s infinite; }
.hero h1 { margin: 0; max-width: 860px; font-size: 58px; line-height: 1.12; font-weight: 700; letter-spacing: 0; text-wrap: pretty; }
.hero p { margin: 0; max-width: 660px; color: var(--ink3); font-size: 17px; line-height: 1.72; text-wrap: pretty; }
.hero-actions { gap: 12px; flex-wrap: wrap; }
.hero .button { min-height: 46px; padding-inline: 22px; border-radius: 11px; font-size: 15px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 6px 14px; color: var(--ink4); font-size: 11.5px; }

.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; margin-bottom: 104px; overflow: hidden; border: 1px solid var(--border); border-radius: 12px; background: var(--border); }
.stats article { min-height: 122px; padding: 20px 22px; display: flex; flex-direction: column; gap: 5px; background: var(--bg); }
.stats strong { color: var(--ink); font-size: 23px; font-weight: 500; letter-spacing: 0; }
.stats span { color: var(--ink3); font-size: 12.5px; line-height: 1.5; }

.section { padding-bottom: 104px; }
.compact { padding-bottom: 80px; }
.section-head { max-width: 640px; margin-bottom: 38px; display: flex; flex-direction: column; gap: 12px; }
.kicker { color: var(--ink4); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; }
h2 { margin: 0; color: var(--ink); font-size: 34px; line-height: 1.24; font-weight: 600; letter-spacing: 0; text-wrap: pretty; }
h3 { margin: 0; color: var(--ink); font-size: 17px; line-height: 1.25; font-weight: 600; letter-spacing: 0; }
.section-head p, .cap-grid p, .cap-grid small, .workflow-stack p, .library-grid p, .organize-strip span, .model-layout p, .model-points li, .access p, .footer p { color: var(--ink3); }
.cap-grid article { border: 1px solid var(--border); border-radius: 14px; background: var(--card); }
.pill { height: 21px; padding: 0 9px; display: inline-flex; align-items: center; border-radius: 999px; background: var(--chip); color: var(--ink3); font-size: 10.5px; }
.pill.ok { color: var(--ok); }
.model-points { margin: 6px 0 0; padding: 12px 0 0; border-top: 1px solid var(--border); list-style: none; }
.model-points { border-top: 0; }
.model-points li { position: relative; padding-left: 15px; }
.model-points li::before { content: ""; position: absolute; left: 0; top: 0.72em; width: 5px; height: 5px; border-radius: 50%; background: var(--ink4); }
.model-points li + li { margin-top: 7px; }

.cap-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.cap-grid article { min-height: 260px; padding: 26px 24px 28px; display: flex; flex-direction: column; gap: 12px; }
.cap-grid article > span { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid var(--border2); border-radius: 9px; color: var(--ink2); }
.cap-grid small { margin-top: auto; font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace; font-size: 11px; }

.workflow-stack { display: grid; gap: 1px; overflow: hidden; border: 1px solid var(--border); border-radius: 14px; background: var(--border); }
.workflow-stack article { display: grid; grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr); gap: 40px; align-items: center; padding: 30px 28px; background: var(--bg); }
.scope-label { display: block; margin-bottom: 9px; color: var(--ink4); font-size: 11.5px; }
.mini-frame { min-height: 112px; padding: 14px 15px; display: flex; align-items: center; gap: 12px; border: 1px solid var(--border2); border-radius: 11px; background: var(--card); color: var(--ink2); }
.mini-frame em { margin-left: auto; color: var(--ink4); font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace; font-size: 11px; font-style: normal; }
.mini-frame.rows { align-items: stretch; flex-direction: column; justify-content: center; }
.mini-frame.rows span { min-height: 24px; display: flex; align-items: center; padding: 0 10px; border-radius: 7px; background: var(--chip); font-size: 12px; }
.mini-frame.warn em { color: var(--warn); }
.mini-frame.ok em { color: var(--ok); }

.library-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.library-grid article { overflow: hidden; border: 1px solid var(--border); border-radius: 12px; background: var(--card); }
.library-grid h3, .library-grid p { margin-left: 14px; margin-right: 14px; }
.library-grid h3 { margin-top: 14px; font-size: 14px; }
.library-grid p { margin-bottom: 16px; font-size: 12.5px; }
.art { height: 104px; border-bottom: 1px solid var(--border); background: var(--bg2); position: relative; overflow: hidden; }
.art::before, .art::after { content: ""; position: absolute; border-radius: 2px; background: var(--ink4); opacity: 0.7; }
.art.task::before { left: 18px; top: 25px; width: 62%; height: 5px; box-shadow: 0 18px 0 var(--ink4), 0 36px 0 var(--ink4); }
.art.task::after { right: 18px; top: 25px; width: 24px; height: 5px; box-shadow: 0 18px 0 var(--ink4), 0 36px 0 var(--ink4); opacity: 0.38; }
.art.design::before { inset: 16px; background: linear-gradient(90deg, var(--ink4) 30%, transparent 30% 36%, var(--ink4) 36% 66%, transparent 66% 72%, var(--ink4) 72%); }
.art.design::after { left: 16px; right: 16px; bottom: 16px; height: 30px; background: linear-gradient(90deg, var(--ink4) 48%, transparent 48% 54%, var(--ink4) 54%); opacity: 0.45; }
.art.code::before { left: 22px; top: 24px; width: 58%; height: 4px; box-shadow: 18px 14px 0 var(--ink4), 34px 28px 0 var(--ink4), 18px 42px 0 var(--ink4); }
.art.code::after { left: 22px; top: 66px; width: 32%; height: 4px; opacity: 0.4; }
.art.inbox::before { left: 16px; top: 22px; width: 28%; height: 5px; box-shadow: 0 18px 0 var(--ink4), 48px 18px 0 var(--ink4), 96px 18px 0 var(--ink4); }
.art.inbox::after { left: 16px; bottom: 18px; width: 40%; height: 22px; box-shadow: 54px 0 0 var(--ink4); opacity: 0.45; }
.art.media::before { left: 18px; top: 18px; width: 26%; height: 68px; box-shadow: 42px 0 0 var(--ink4), 84px 0 0 var(--ink4); }
.art.media::after { display: none; }
.organize-strip { margin-top: 20px; padding: 22px 24px; display: flex; align-items: center; gap: 26px; flex-wrap: wrap; border: 1px solid var(--border); border-radius: 12px; background: var(--card); }
.organize-strip div { flex: 1; min-width: 240px; display: grid; gap: 5px; }
.organize-strip strong { color: var(--ink); font-size: 15px; }
.organize-strip p { margin: 0; display: flex; gap: 7px; flex-wrap: wrap; }
.organize-strip p span { min-height: 27px; display: inline-flex; align-items: center; padding: 0 12px; border: 1px solid var(--border2); border-radius: 999px; background: var(--bg); color: var(--ink2); font-size: 12.5px; }

.model-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr); gap: 48px; align-items: center; }
.model-layout p { max-width: 460px; font-size: 15.5px; line-height: 1.72; }
.model-panel { overflow: hidden; border: 1px solid var(--border2); border-radius: 14px; background: var(--card); box-shadow: var(--lift); }
.panel-bar { padding: 13px 16px; display: flex; align-items: center; gap: 9px; border-bottom: 1px solid var(--border); }
.panel-title { flex: 1; color: var(--ink); font-size: 12.5px; font-weight: 600; }
.provider-row { display: grid; grid-template-columns: 24px 1fr auto; gap: 12px; align-items: center; padding: 13px 16px; border-bottom: 1px solid var(--border); }
.provider-row b { width: 24px; height: 24px; display: grid; place-items: center; border: 1px solid var(--border2); border-radius: 7px; color: var(--ink2); font-family: "IBM Plex Mono", monospace; font-size: 10.5px; }
.provider-row span { color: var(--ink); }
.provider-row em { color: var(--ink4); font-family: "IBM Plex Mono", monospace; font-size: 10.5px; font-style: normal; }
.usage-block { padding: 15px 16px 17px; }
.usage-block span, .usage-block p { color: var(--ink3); font-size: 11.5px; }
.usage-block strong { float: right; color: var(--ink2); font-family: "IBM Plex Mono", monospace; font-size: 11px; font-weight: 500; }
.usage-block i { clear: both; display: block; height: 6px; margin: 9px 0; overflow: hidden; border-radius: 999px; background: var(--chip); }
.usage-block b { display: block; width: 21%; height: 100%; background: var(--ink3); }
.usage-block p { margin: 0; font-family: "IBM Plex Mono", monospace; color: var(--ink4); }

.access { margin-bottom: 80px; padding: 64px 48px 68px; display: flex; flex-direction: column; align-items: center; gap: 20px; text-align: center; border: 1px solid var(--border2); border-radius: 16px; background: var(--card); }
.access .button { min-height: 48px; padding-inline: 24px; border-radius: 11px; font-size: 15.5px; }
.access p { max-width: 520px; margin: 0; font-size: 15.5px; line-height: 1.72; }
.access .mono { color: var(--ink4); font-size: 11.5px; }
.footer { padding: 34px 0 56px; display: grid; grid-template-columns: 1fr auto; gap: 40px; border-top: 1px solid var(--border); }
.footer p { max-width: 300px; margin: 9px 0 0; font-size: 12.5px; }
.footer-links { gap: 16px; color: var(--ink3); font-size: 13px; }
.footer-bottom { grid-column: 1 / -1; justify-content: space-between; gap: 16px; padding-top: 22px; border-top: 1px solid var(--border); color: var(--ink4); font-size: 11px; }

[data-reveal] { opacity: 1; transform: none; }
@keyframes pulseDot { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }
@media (prefers-reduced-motion: no-preference) {
  [data-reveal] { opacity: 0; transform: translateY(14px); transition: opacity 540ms cubic-bezier(0.16, 1, 0.3, 1), transform 540ms cubic-bezier(0.16, 1, 0.3, 1); }
  .hero[data-reveal] { opacity: 1; transform: none; transition: none; }
  [data-reveal].is-visible { opacity: 1; transform: translateY(0); }
  .button:hover, .control-button:hover { transform: translateY(-1px); }
}

@media (max-width: 980px) {
  .topbar-inner { gap: 14px; }
  .site-nav { position: absolute; top: 60px; left: 32px; right: 32px; display: none; padding: 10px; border: 1px solid var(--border); border-radius: 12px; background: var(--card); box-shadow: var(--lift); }
  .site-nav.is-open { display: grid; }
  .site-nav a { padding: 10px 12px; }
  .menu-button { display: inline-flex; align-items: center; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cap-grid, .library-grid, .model-layout, .workflow-stack article { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .topbar-inner, .site { padding-inline: 14px; }
  .top-actions .button-small { display: none; }
  .site-nav { top: 60px; left: 14px; right: 14px; }
  .hero { padding: 72px 0 72px; }
  .hero h1 { font-size: 44px; }
  h2 { font-size: 30px; }
  .section { padding-bottom: 72px; }
  .stats { grid-template-columns: 1fr; margin-bottom: 72px; }
  .access { padding: 40px 20px 44px; }
  .footer { grid-template-columns: 1fr; }
  .footer-bottom { align-items: flex-start; flex-direction: column; }
}