/* Infinite Canvas — 官网原型样式
   与 App 共用同一套视觉变量：深绿纸面、酸性柠檬、衬线标题、等宽标签。 */

@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Manrope:wght@400;500;600;700;800&family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;1,6..72,400;1,6..72,500&display=swap');

:root {
  --ink: #f4f5ef;
  --muted: #8b9690;
  --muted-2: #5f6a64;
  --page: #151a17;
  --page-deep: #101412;
  --panel: #1b211d;
  --panel-deep: #101511;
  --line: rgba(230, 238, 229, .1);
  --line-strong: rgba(230, 238, 229, .2);
  --acid: #d9f36b;
  --acid-deep: #a9c84b;
  --coral: #ff806a;
  --cyan: #9de8d0;
  --sand: #e8dcc4;
  --radius: 16px;
  --radius-sm: 10px;
  --shell: 1200px;
  --serif: Newsreader, "Songti SC", Georgia, serif;
  --sans: Manrope, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --mono: "DM Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--page-deep);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(circle at 15% -8%, rgba(217, 243, 107, .09), transparent 46%),
    radial-gradient(circle at 92% 4%, rgba(157, 232, 208, .06), transparent 42%);
  background-repeat: no-repeat;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 500; letter-spacing: -.03em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; }
::selection { background: rgba(217, 243, 107, .28); }

:focus-visible { outline: 2px solid var(--acid); outline-offset: 3px; border-radius: 4px; }

/* ---------- 通用排版 ---------- */

.shell { width: min(100% - 48px, var(--shell)); margin-inline: auto; }
.shell--wide { width: min(100% - 48px, 1340px); margin-inline: auto; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted-2);
}
.eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: currentColor;
  opacity: .6;
}
.eyebrow--plain::before { display: none; }

.display {
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -.055em;
  line-height: .96;
  font-size: clamp(38px, 5.4vw, 72px);
}
.display em { font-style: italic; color: var(--acid); }
.display--tight { line-height: .9; letter-spacing: -.07em; }

.lede { color: var(--muted); font-size: 15px; line-height: 1.75; max-width: 46ch; }
.small { font-size: 13px; color: var(--muted); line-height: 1.7; }
.mono { font-family: var(--mono); font-size: 11px; letter-spacing: .06em; color: var(--muted-2); }

.section { padding: clamp(72px, 9vw, 128px) 0; position: relative; }
.section--tight { padding: clamp(52px, 6vw, 84px) 0; }
.section--panel { background: var(--page); border-block: 1px solid var(--line); }

.section-head { display: grid; gap: 18px; max-width: 760px; margin-bottom: clamp(38px, 5vw, 62px); }
.section-head p { font-size: 15px; color: var(--muted); max-width: 56ch; }

.rule { height: 1px; background: var(--line); border: 0; margin: 0; }

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -.01em;
  cursor: pointer;
  transition: background .18s ease, border-color .18s ease, color .18s ease, transform .18s ease, box-shadow .18s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--acid {
  background: var(--acid);
  border-color: var(--acid);
  color: #16201a;
  box-shadow: 0 12px 32px rgba(217, 243, 107, .14);
}
.btn--acid:hover { background: #e7ff8c; border-color: #e7ff8c; box-shadow: 0 16px 38px rgba(217, 243, 107, .22); }

.btn--ghost {
  border-color: var(--line-strong);
  color: var(--ink);
}
.btn--ghost:hover { background: rgba(255, 255, 255, .06); border-color: rgba(230, 238, 229, .34); }

.btn--dark { background: #14201a; border-color: #14201a; color: var(--sand); }
.btn--dark:hover { background: #101a15; }

.btn--sm { min-height: 38px; padding: 0 14px; font-size: 12px; border-radius: 8px; }

.btn-icon { width: 15px; height: 15px; stroke-width: 1.7; }
.arrow { transition: transform .18s ease; }
.btn:hover .arrow { transform: translate(2px, -2px); }

/* ---------- 头部导航 ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(16, 20, 18, .72);
  backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, background .2s ease;
}
.site-header.is-stuck { border-bottom-color: var(--line); background: rgba(16, 20, 18, .9); }

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 26px;
  height: 70px;
}

.brand { display: flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  border-radius: 10px;
  background: var(--acid);
  color: #182016;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: -.05em;
  transform: rotate(-6deg);
  box-shadow: 4px 4px 0 rgba(217, 243, 107, .12);
}
.brand__copy { display: grid; gap: 1px; }
.brand__copy strong { font-size: 14px; letter-spacing: -.03em; line-height: 1.2; }
.brand__copy small { font-family: var(--mono); font-size: 8.5px; letter-spacing: .12em; color: var(--muted-2); text-transform: uppercase; }

.site-nav { display: flex; align-items: center; gap: 4px; margin-left: 8px; }
.site-nav a {
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  transition: color .16s ease, background .16s ease;
}
.site-nav a:hover { color: var(--ink); background: rgba(255, 255, 255, .05); }
.site-nav a[aria-current="page"] { color: var(--acid); background: rgba(217, 243, 107, .09); }

.site-header__actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: transparent;
  cursor: pointer;
}
.nav-toggle span { display: block; width: 16px; height: 1.5px; background: var(--ink); position: relative; }
.nav-toggle span::before, .nav-toggle span::after {
  content: "";
  position: absolute; left: 0;
  width: 16px; height: 1.5px; background: var(--ink);
}
.nav-toggle span::before { top: -5px; }
.nav-toggle span::after { top: 5px; }

.mobile-nav {
  display: none;
  border-bottom: 1px solid var(--line);
  background: #0e1210;
  padding: 6px 0 18px;
  box-shadow: 0 24px 40px rgba(0, 0, 0, .5);
}
@media (max-width: 900px) {
  .mobile-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
  }
}
.mobile-nav.is-open { display: block; }
.mobile-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 4px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-size: 14px;
}
.mobile-nav a small { font-family: var(--mono); font-size: 10px; color: var(--muted-2); letter-spacing: .1em; }

/* ---------- 首屏 ---------- */

.hero { position: relative; overflow: hidden; padding: clamp(56px, 7vw, 104px) 0 clamp(56px, 7vw, 96px); }
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  gap: clamp(32px, 5vw, 76px);
  align-items: center;
}
.hero__copy { display: grid; gap: 26px; align-content: start; }
.hero h1 { font-size: clamp(44px, 6.6vw, 88px); }
.hero__lede { max-width: 40ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
  margin-top: 6px;
}
.hero__meta span { display: inline-flex; align-items: center; gap: 7px; font-family: var(--mono); font-size: 10px; letter-spacing: .1em; color: var(--muted-2); text-transform: uppercase; }
.dot { width: 5px; height: 5px; border-radius: 50%; background: var(--acid); box-shadow: 0 0 0 4px rgba(217, 243, 107, .1); }
.dot--coral { background: var(--coral); box-shadow: 0 0 0 4px rgba(255, 128, 106, .12); }
.dot--cyan { background: var(--cyan); box-shadow: 0 0 0 4px rgba(157, 232, 208, .12); }

.hero__visual { position: relative; display: grid; place-items: center; min-height: 520px; }
.hero__rings { position: absolute; inset: 0; pointer-events: none; }
.ring {
  position: absolute;
  border: 1px solid rgba(230, 238, 229, .14);
  border-radius: 50%;
  transform: rotate(-24deg);
}
.ring--one { inset: 4% -12% 10% 6%; }
.ring--two { inset: 16% 2% 22% 18%; border-style: dashed; border-color: rgba(217, 243, 107, .22); }
.ring--two::after {
  content: "";
  position: absolute;
  top: 12%;
  right: 14%;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 6px rgba(255, 128, 106, .14);
}
.hero__note {
  position: absolute;
  bottom: 4%;
  left: 0;
  display: grid;
  gap: 4px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .1em;
  color: var(--muted-2);
  text-transform: uppercase;
  z-index: 3;
}
.hero__note strong { color: var(--muted); font-weight: 500; }

/* ---------- 手机模型 ---------- */

.phone {
  position: relative;
  z-index: 2;
  width: min(302px, 82%);
  aspect-ratio: 322 / 660;
  padding: 9px;
  border-radius: 40px;
  background: linear-gradient(150deg, #2a332c, #161c18 62%);
  border: 1px solid rgba(230, 238, 229, .16);
  box-shadow: 0 40px 90px rgba(0, 0, 0, .55), 0 0 0 1px rgba(0, 0, 0, .4), inset 0 1px 0 rgba(255, 255, 255, .08);
  transform: rotate(2.4deg);
}
.phone--flat { transform: none; }
.phone::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 50%;
  width: 76px;
  height: 6px;
  transform: translateX(-50%);
  border-radius: 99px;
  background: #0a0e0c;
}
.phone__screen {
  height: 100%;
  border-radius: 32px;
  background: var(--page);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  font-size: 10px;
  line-height: 1.5;
}

.app-bar {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 26px 14px 12px;
  border-bottom: 1px solid var(--line);
}
.app-bar .brand__mark { width: 24px; height: 24px; flex-basis: 24px; border-radius: 7px; font-size: 11px; box-shadow: 3px 3px 0 rgba(217, 243, 107, .12); }
.app-bar__copy { display: grid; line-height: 1.15; }
.app-bar__copy strong { font-size: 10.5px; letter-spacing: -.02em; }
.app-bar__copy small { font-family: var(--mono); font-size: 6.5px; letter-spacing: .1em; color: var(--muted-2); }
.app-bar__quota { margin-left: auto; font-family: var(--mono); font-size: 8px; color: var(--muted); }
.app-bar__avatar {
  display: grid; place-items: center;
  width: 22px; height: 22px; border-radius: 7px;
  background: var(--acid); color: #182016;
  font-size: 9px; font-weight: 800;
}

.app-body { flex: 1; min-height: 0; padding: 12px 13px 8px; display: flex; flex-direction: column; gap: 9px; }
.app-tabs { display: flex; gap: 3px; padding-bottom: 8px; border-bottom: 1px solid var(--line); }
.app-tabs span {
  padding: 4px 7px;
  border-radius: 5px;
  color: var(--muted);
  font-size: 8.5px;
  font-weight: 600;
}
.app-tabs span.is-active { color: var(--acid); background: rgba(217, 243, 107, .1); }

.app-panel {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  padding: 9px;
  display: grid;
  gap: 7px;
}
.app-panel__head { display: flex; align-items: center; gap: 6px; font-family: var(--mono); font-size: 6.5px; letter-spacing: .12em; color: var(--muted-2); text-transform: uppercase; }
.app-panel__head i { width: 5px; height: 5px; border-radius: 50%; background: var(--acid); }
.app-prompt { color: #cfd6cb; font-size: 9px; line-height: 1.55; min-height: 44px; }
.app-prompt::after { content: "▍"; color: var(--acid-deep); animation: caret 1.15s steps(1) infinite; }
@keyframes caret { 50% { opacity: 0; } }

.app-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; }
.app-field {
  display: flex; align-items: center; justify-content: space-between;
  padding: 5px 6px;
  border: 1px solid var(--line);
  border-radius: 5px;
  font-size: 7.5px;
  color: var(--muted);
}
.app-field b { color: var(--ink); font-weight: 600; }
.app-range { height: 3px; border-radius: 99px; background: rgba(230, 238, 229, .12); position: relative; margin: 3px 0 1px; }
.app-range::after { content: ""; position: absolute; inset: 0 38% 0 0; border-radius: 99px; background: var(--acid); }
.app-btn {
  display: flex; align-items: center; justify-content: center; gap: 5px;
  height: 27px;
  border-radius: 6px;
  background: var(--acid);
  color: #16201a;
  font-size: 8.5px;
  font-weight: 800;
}
.app-task {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: 2px;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(27, 33, 29, .7);
  font-family: var(--mono);
  font-size: 6.5px;
  letter-spacing: .08em;
  color: var(--muted-2);
  text-transform: uppercase;
}
.app-task__label { display: inline-flex; align-items: center; gap: 5px; color: var(--muted); }
.app-task__label i { width: 4px; height: 4px; border-radius: 50%; background: var(--coral); animation: blink 1.8s ease-in-out infinite; }
.app-task__id { color: var(--muted); letter-spacing: .04em; }
.app-task__status { margin-left: auto; color: var(--acid); }
@keyframes blink { 50% { opacity: .3; } }

.app-recent { display: grid; gap: 6px; margin-top: auto; }
.app-recent__head { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 6.5px; letter-spacing: .1em; color: var(--muted-2); text-transform: uppercase; }
.app-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 5px; }
.app-thumb { aspect-ratio: 1; border-radius: 5px; border: 1px solid rgba(0, 0, 0, .3); }

.app-tabbar {
  display: flex;
  justify-content: space-around;
  padding: 7px 6px 12px;
  border-top: 1px solid var(--line);
  background: rgba(18, 23, 19, .9);
}
.app-tabbar span { display: grid; justify-items: center; gap: 3px; font-size: 6.5px; color: var(--muted-2); }
.app-tabbar i { width: 11px; height: 11px; border-radius: 3px; background: currentColor; opacity: .55; }
.app-tabbar .is-active { color: var(--acid); }
.app-tabbar .is-active i { opacity: 1; }

/* 渐变“作品”占位 */
.art { position: relative; overflow: hidden; background: #202822; }
.art--a { background: radial-gradient(circle at 26% 22%, #ffb08f, transparent 55%), radial-gradient(circle at 74% 70%, #d9f36b, transparent 58%), linear-gradient(140deg, #35402f, #1a211b); }
.art--b { background: radial-gradient(circle at 70% 26%, #9de8d0, transparent 54%), radial-gradient(circle at 22% 78%, #5f7bff33, transparent 60%), linear-gradient(150deg, #1f2a33, #12181d); }
.art--c { background: radial-gradient(circle at 40% 34%, #ff806a, transparent 50%), radial-gradient(circle at 82% 82%, #f0c48a, transparent 56%), linear-gradient(160deg, #2c2320, #171312); }
.art--d { background: radial-gradient(circle at 30% 30%, #cfe3a0, transparent 55%), radial-gradient(circle at 76% 68%, #8f9bff44, transparent 60%), linear-gradient(140deg, #2b3327, #151a15); }
.art--e { background: radial-gradient(circle at 60% 40%, #f4e6c8, transparent 52%), linear-gradient(150deg, #2a2f26, #12160f); }
.art--f { background: radial-gradient(circle at 24% 68%, #9de8d0, transparent 50%), radial-gradient(circle at 78% 24%, #ff806a88, transparent 48%), linear-gradient(140deg, #222a26, #101512); }
.art::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 14px 14px;
  opacity: .5;
  mix-blend-mode: overlay;
}

/* ---------- 跑马灯 ---------- */

.marquee {
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: var(--panel-deep);
  padding: 14px 0;
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}
.marquee__track { display: flex; gap: 34px; width: max-content; animation: slide 34s linear infinite; }
.marquee__track span {
  display: inline-flex;
  align-items: center;
  gap: 34px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted-2);
  white-space: nowrap;
}
.marquee__track span::after { content: "✦"; color: var(--acid-deep); font-size: 8px; }
@keyframes slide { to { transform: translateX(-50%); } }

/* ---------- 卡片网格 ---------- */

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 2.4vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(170deg, rgba(27, 33, 29, .92), rgba(20, 26, 22, .92));
  transition: border-color .2s ease, transform .2s ease, background .2s ease;
}
.card:hover { border-color: rgba(217, 243, 107, .3); transform: translateY(-3px); }
.card__icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  border: 1px solid rgba(217, 243, 107, .26);
  background: rgba(217, 243, 107, .09);
  color: var(--acid);
  margin-bottom: 2px;
}
.card__icon svg { width: 18px; height: 18px; stroke-width: 1.6; }
.card h3 { font-size: 19px; letter-spacing: -.035em; font-family: var(--serif); font-weight: 500; line-height: 1.2; }
.card p { font-size: 13.5px; color: var(--muted); line-height: 1.7; }
.card__foot { margin-top: auto; padding-top: 14px; display: flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 9.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted-2); }
.card--acid { background: linear-gradient(165deg, #d8ef9a, #bfdc7b); color: #16201a; border-color: transparent; }
.card--acid h3 { color: #14201a; }
.card--acid p { color: rgba(20, 32, 26, .72); }
.card--acid .card__icon { background: rgba(20, 32, 26, .1); border-color: rgba(20, 32, 26, .18); color: #22331a; }
.card--acid .tag { border-color: rgba(20, 32, 26, .2); color: rgba(20, 32, 26, .78); }

.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 99px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .06em;
  color: var(--muted);
}
.tag--acid { border-color: rgba(217, 243, 107, .34); color: var(--acid); background: rgba(217, 243, 107, .07); }
.tag--coral { border-color: rgba(255, 128, 106, .34); color: #ffb0a0; background: rgba(255, 128, 106, .07); }

/* ---------- 分栏特性 ---------- */

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(30px, 5vw, 76px);
  align-items: center;
}
.split--reverse > :first-child { order: 2; }
.split__copy { display: grid; gap: 20px; align-content: start; }
.split__copy h2 { font-size: clamp(30px, 3.9vw, 50px); letter-spacing: -.05em; line-height: 1; }
.split__copy p { color: var(--muted); font-size: 14.5px; line-height: 1.75; max-width: 48ch; }

.stack-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.stack-list li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 14px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}
.stack-list li > span {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--acid-deep);
  padding-top: 3px;
  letter-spacing: .06em;
}
.split__copy > .btn, .split__copy > .cta-row { justify-self: start; }
.stack-list strong { display: block; font-size: 14px; font-weight: 600; letter-spacing: -.02em; }
.stack-list small { display: block; margin-top: 3px; font-size: 12.5px; color: var(--muted); line-height: 1.65; }

.visual-frame {
  position: relative;
  padding: clamp(16px, 2.6vw, 30px);
  border: 1px solid var(--line);
  border-radius: 22px;
  background:
    radial-gradient(circle at 30% 20%, rgba(217, 243, 107, .08), transparent 46%),
    var(--panel-deep);
  overflow: hidden;
}
.visual-frame::before {
  content: "";
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(230, 238, 229, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(230, 238, 229, .045) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(circle at 50% 40%, black, transparent 78%);
  pointer-events: none;
}

/* ---------- 画布板（节点连线示意图） ---------- */

.board {
  position: relative;
  width: 100%;
  aspect-ratio: 1000 / 620;
  border: 1px solid var(--line);
  border-radius: 20px;
  background:
    radial-gradient(circle at 72% 18%, rgba(157, 232, 208, .08), transparent 46%),
    radial-gradient(circle at 12% 82%, rgba(255, 128, 106, .07), transparent 50%),
    #0d1210;
  overflow: hidden;
}
.board::before {
  content: "";
  position: absolute; inset: 0;
  background-image: radial-gradient(rgba(230, 238, 229, .16) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: .55;
  pointer-events: none;
}
.board__svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.board__svg path {
  fill: none;
  stroke: rgba(217, 243, 107, .55);
  stroke-width: 2;
  stroke-dasharray: 7 7;
  animation: flow 1.6s linear infinite;
}
.board__svg path.is-muted { stroke: rgba(157, 232, 208, .4); }
@keyframes flow { to { stroke-dashoffset: -28; } }

.node {
  position: absolute;
  display: grid;
  gap: 6px;
  padding: 10px 12px 12px;
  border: 1px solid rgba(230, 238, 229, .16);
  border-radius: 13px;
  background: linear-gradient(170deg, #1e2621, #151b17);
  box-shadow: 0 16px 34px rgba(0, 0, 0, .45);
  font-size: 10.5px;
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.node--text { left: 2%; top: 9%; width: 25%; }
.node--image { left: 2%; top: 47%; width: 25%; }
.node--gen { left: 38%; top: 27%; width: 25%; border-color: rgba(217, 243, 107, .34); box-shadow: 0 0 0 1px rgba(217, 243, 107, .12), 0 18px 40px rgba(0, 0, 0, .5); }
.node--out { left: 74%; top: 14%; width: 23%; }
.node--video { left: 74%; top: 64%; width: 23%; }
.node__label {
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted-2);
}
.node__label b { color: var(--acid); font-weight: 500; }
.node__body { color: #c6cec4; line-height: 1.5; font-size: 10px; }
.node__art { border-radius: 7px; aspect-ratio: 16 / 10; }
.node__ports { display: flex; justify-content: space-between; padding-top: 2px; }
.node__ports i { width: 7px; height: 7px; border-radius: 50%; border: 1.5px solid rgba(217, 243, 107, .8); background: #0d1210; }
.node__ports i.is-coral { border-color: rgba(255, 128, 106, .85); }
.node__meta { font-family: var(--mono); font-size: 7.5px; letter-spacing: .08em; color: var(--muted-2); text-transform: uppercase; }

.board-badge {
  position: absolute;
  right: 14px;
  bottom: 14px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 99px;
  background: rgba(13, 18, 16, .86);
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: .1em;
  color: var(--muted);
  text-transform: uppercase;
  backdrop-filter: blur(6px);
}

/* ---------- 协作示意：在线成员 + 同步日志 + 迷你画布 ---------- */

.presence {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 13px;
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.presence__stack { display: flex; flex: 0 0 auto; }
.presence__avatar {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  border: 2px solid var(--panel-deep);
  background: var(--acid);
  color: #182016;
  font-size: 11px;
  font-weight: 800;
  margin-left: -9px;
  flex: 0 0 32px;
}
.presence__avatar:first-child { margin-left: 0; }
.presence__avatar--coral { background: var(--coral); color: #2a1109; }
.presence__avatar--cyan { background: var(--cyan); color: #0f2620; }
.presence__copy { display: grid; line-height: 1.3; min-width: 0; }
.presence__copy strong { font-size: 13px; letter-spacing: -.02em; }
.presence__copy small { font-family: var(--mono); font-size: 9px; letter-spacing: .07em; color: var(--muted-2); }
.presence .status { margin-left: auto; flex: 0 0 auto; justify-self: auto; }

.console {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 5px;
  padding: 14px 15px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: #0b100e;
  font-family: var(--mono);
  font-size: 10.5px;
  line-height: 1.75;
  color: #a9b4ac;
  overflow: hidden;
}
.console .c { color: var(--muted-2); }

.mini-board {
  position: relative;
  z-index: 2;
  margin-top: 16px;
  height: 132px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background-color: #0b100e;
  background-image: radial-gradient(rgba(230, 238, 229, .14) 1px, transparent 1px);
  background-size: 18px 18px;
}
.mini-board__node {
  position: absolute;
  display: grid;
  place-items: center;
  padding: 8px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: var(--panel);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: .12em;
  color: var(--muted);
}
.mini-board__node--a { left: 6%; top: 20%; width: 22%; height: 56%; }
.mini-board__node--b { left: 39%; top: 12%; width: 26%; height: 74%; color: transparent; }
.mini-board__node--c { left: 74%; top: 30%; width: 20%; height: 40%; border-color: rgba(217, 243, 107, .5); color: var(--acid); }
.mini-board::after {
  content: "";
  position: absolute;
  left: 28%;
  top: 50%;
  width: 11%;
  height: 1px;
  background: rgba(217, 243, 107, .5);
}
.mini-board::before {
  content: "";
  position: absolute;
  left: 65%;
  top: 50%;
  width: 9%;
  height: 1px;
  background: rgba(217, 243, 107, .5);
}

/* ---------- 步骤 ---------- */

.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; counter-reset: step; }
.step {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 26px clamp(18px, 2.4vw, 30px) 30px;
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
}
.step:last-child { border-right: 0; }
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  color: var(--acid-deep);
}
.step h3 { font-family: var(--serif); font-size: 22px; letter-spacing: -.04em; }
.step p { font-size: 13px; color: var(--muted); line-height: 1.7; }

/* ---------- 强调条 ---------- */

.pill-band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 26px;
  padding: 20px 24px;
  border: 1px solid rgba(217, 243, 107, .24);
  border-radius: 14px;
  background: rgba(217, 243, 107, .05);
  font-size: 13px;
  color: var(--muted);
}
.pill-band strong { color: var(--ink); font-weight: 600; }

/* ---------- CTA ---------- */

.cta-band {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  background: linear-gradient(135deg, #d8ef9a 0%, #c3e07d 55%, #a9c84b 100%);
  color: #16201a;
  padding: clamp(36px, 5vw, 68px);
  isolation: isolate;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(rgba(20, 32, 26, .08) 1px, transparent 1px), linear-gradient(90deg, rgba(20, 32, 26, .08) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(115deg, black, transparent 72%);
}
.cta-band__inner { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); gap: 32px; align-items: end; }
.cta-band h2 { font-family: var(--serif); font-size: clamp(30px, 4.2vw, 54px); line-height: .98; letter-spacing: -.055em; }
.cta-band p { margin-top: 14px; max-width: 42ch; font-size: 14px; color: rgba(20, 32, 26, .74); }
.cta-band__actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; }
.cta-band .eyebrow { color: rgba(20, 32, 26, .6); }

/* ---------- 页脚 ---------- */

.site-footer { border-top: 1px solid var(--line); background: var(--panel-deep); padding: clamp(46px, 6vw, 76px) 0 30px; }
.site-footer__grid { display: grid; grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr)); gap: 34px; }
.site-footer__brand { display: grid; gap: 16px; align-content: start; max-width: 34ch; }
.site-footer__brand p { font-size: 13px; color: var(--muted); line-height: 1.7; }
.site-footer h4 { font-family: var(--mono); font-size: 9.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted-2); font-weight: 500; margin-bottom: 14px; }
.site-footer__col ul { display: grid; gap: 9px; }
.site-footer__col a { font-size: 13px; color: var(--muted); transition: color .16s ease; }
.site-footer__col a:hover { color: var(--acid); }
.site-footer__bottom {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px;
  margin-top: clamp(34px, 4vw, 56px); padding-top: 22px; border-top: 1px solid var(--line);
  font-family: var(--mono); font-size: 10px; letter-spacing: .08em; color: var(--muted-2); text-transform: uppercase;
}
.site-footer__bottom a:hover { color: var(--acid); }

/* ---------- 内页 hero ---------- */

.page-hero { position: relative; padding: clamp(52px, 6.5vw, 92px) 0 clamp(38px, 4.5vw, 60px); border-bottom: 1px solid var(--line); overflow: hidden; }
.page-hero__grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: clamp(26px, 4vw, 56px); align-items: center; }
.page-hero h1 { font-size: clamp(38px, 5.4vw, 70px); letter-spacing: -.06em; line-height: .98; }
.page-hero p { margin-top: 20px; }
.breadcrumbs { display: flex; align-items: center; gap: 8px; margin-bottom: 22px; font-family: var(--mono); font-size: 9.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted-2); }
.breadcrumbs a:hover { color: var(--acid); }
.breadcrumbs span { opacity: .5; }

.page-hero__aside {
  display: grid;
  gap: 10px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(27, 33, 29, .6);
}
.page-hero__aside dl { display: grid; grid-template-columns: auto 1fr; gap: 8px 16px; margin: 0; font-size: 12px; }
.page-hero__aside dt { font-family: var(--mono); font-size: 9.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted-2); padding-top: 2px; }
.page-hero__aside dd { margin: 0; color: var(--ink); }

/* 锚点导航（产品页） */
.jump-nav { position: sticky; top: 70px; z-index: 40; background: rgba(16, 20, 18, .92); backdrop-filter: blur(16px); border-bottom: 1px solid var(--line); }
.jump-nav__inner { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; padding: 9px 0; }
.jump-nav__inner::-webkit-scrollbar { display: none; }
.jump-nav a {
  flex: 0 0 auto;
  padding: 7px 13px;
  border: 1px solid transparent;
  border-radius: 99px;
  color: var(--muted);
  font-size: 12.5px;
  transition: .16s ease;
}
.jump-nav a:hover { color: var(--ink); border-color: var(--line-strong); background: rgba(255, 255, 255, .04); }

/* 规格表 */
.spec-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.spec-table caption { text-align: left; font-family: var(--mono); font-size: 9.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted-2); padding-bottom: 12px; }
.spec-table th, .spec-table td { text-align: left; padding: 13px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.spec-table th { width: 32%; font-weight: 500; color: var(--muted); font-size: 12.5px; }
.spec-table td { color: var(--ink); }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.table-wrap { border: 1px solid var(--line); border-radius: 14px; background: var(--panel); overflow: hidden; }
.table-wrap .spec-table th, .table-wrap .spec-table td { padding-inline: 18px; }

/* 时间线 */
.timeline { display: grid; gap: 0; border-top: 1px solid var(--line); }
.timeline__item {
  display: grid;
  grid-template-columns: 118px minmax(0, 1fr) 96px;
  gap: 24px;
  align-items: start;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}
.timeline__when {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted-2);
  padding-top: 4px;
  padding-right: 12px;
  line-height: 1.6;
}
.timeline__body { display: grid; gap: 7px; }
.timeline__body h3 { font-family: var(--serif); font-size: 21px; letter-spacing: -.035em; padding-right: 24px; }
.timeline__body p { font-size: 13px; color: var(--muted); line-height: 1.7; max-width: 62ch; }

.status {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 99px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .08em;
  text-transform: uppercase;
  border: 1px solid var(--line-strong);
  color: var(--muted);
  white-space: nowrap;
}
.status--done { border-color: rgba(157, 232, 208, .34); color: var(--cyan); background: rgba(157, 232, 208, .07); }
.status--active { border-color: rgba(217, 243, 107, .4); color: var(--acid); background: rgba(217, 243, 107, .08); }
.status--planned { border-color: rgba(255, 128, 106, .3); color: #ffb0a0; background: rgba(255, 128, 106, .06); }

/* FAQ */
.faq { display: grid; gap: 10px; }
.faq details {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  padding: 0 18px;
  transition: border-color .2s ease;
}
.faq details[open] { border-color: rgba(217, 243, 107, .26); }
.faq summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 0;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -.01em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); font-size: 16px; color: var(--acid); line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq p { padding: 0 0 18px; font-size: 13px; color: var(--muted); line-height: 1.75; max-width: 76ch; }

/* 检查清单 */
.checklist { display: grid; gap: 11px; }
.checklist li { display: grid; grid-template-columns: 18px 1fr; gap: 11px; font-size: 13.5px; color: var(--muted); line-height: 1.65; }
.checklist li::before {
  content: "";
  width: 14px; height: 14px;
  margin-top: 4px;
  border-radius: 4px;
  border: 1px solid rgba(217, 243, 107, .5);
  background: rgba(217, 243, 107, .12);
  box-shadow: inset 0 0 0 3px var(--page-deep);
}
.checklist li {
  grid-template-columns: 14px 1fr;
  align-items: start;
}
.checklist strong { color: var(--ink); font-weight: 600; }

/* 行内代码 */
code:not(.code) {
  padding: 1px 5px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(255, 255, 255, .05);
  font-family: var(--mono);
  font-size: .88em;
  color: var(--cyan);
}

/* 代码块 */
.code {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #0c110f;
  color: #cfd6cb;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.85;
  overflow-x: auto;
  white-space: pre;
}
.code .c { color: var(--muted-2); }

/* ---------- 内页小节标题 ---------- */

.mini-head { display: flex; align-items: baseline; justify-content: space-between; gap: 18px; flex-wrap: wrap; margin-bottom: 22px; }
.mini-head h2 { font-family: var(--serif); font-size: clamp(24px, 3vw, 34px); letter-spacing: -.045em; }
.mini-head .mono { white-space: nowrap; }

.prose { display: grid; gap: 16px; max-width: 68ch; }
.prose p { font-size: 14px; color: var(--muted); line-height: 1.8; }
.prose strong { color: var(--ink); font-weight: 600; }

.quote {
  border-left: 2px solid var(--acid);
  padding: 4px 0 4px 18px;
  font-family: var(--serif);
  font-size: clamp(19px, 2.2vw, 25px);
  line-height: 1.42;
  letter-spacing: -.03em;
  color: #e8ece3;
  max-width: 30ch;
}

/* 提示框 */
.callout {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 18px;
  border: 1px solid rgba(157, 232, 208, .22);
  border-radius: 12px;
  background: rgba(157, 232, 208, .05);
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
}
.callout strong { color: var(--ink); font-weight: 600; }
.callout::before {
  content: "i";
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border-radius: 50%;
  border: 1px solid rgba(157, 232, 208, .5);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 11px;
  font-style: normal;
}
.callout--warn { border-color: rgba(255, 128, 106, .24); background: rgba(255, 128, 106, .06); }
.callout--warn::before { content: "!"; border-color: rgba(255, 128, 106, .5); color: #ffb0a0; }

/* 键位 */
.kbd {
  display: inline-block;
  min-width: 20px;
  padding: 1px 6px;
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: rgba(255, 255, 255, .05);
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink);
  text-align: center;
}

/* 模式说明行 */
.mode-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.mode-row {
  display: grid;
  grid-template-columns: 108px minmax(0, 1.5fr) minmax(0, .9fr);
  gap: 22px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.mode-row__name { display: grid; gap: 5px; }
.mode-row__name b { font-family: var(--serif); font-size: 20px; font-weight: 500; letter-spacing: -.035em; }
.mode-row__name span { font-family: var(--mono); font-size: 9px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted-2); }
.mode-row p { font-size: 13px; color: var(--muted); line-height: 1.7; }
.mode-row__settings { display: flex; flex-wrap: wrap; gap: 6px; }

/* 双列表 */
.duo { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }

/* 画布细节卡 */
.detail-card {
  display: grid;
  gap: 14px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.detail-card h3 { font-family: var(--serif); font-size: 20px; letter-spacing: -.035em; }
.detail-card p { font-size: 13px; color: var(--muted); line-height: 1.72; }
.detail-card .mono { letter-spacing: .12em; text-transform: uppercase; }

/* 权限矩阵 */
.matrix { width: 100%; border-collapse: collapse; font-size: 13px; }
.matrix th, .matrix td { padding: 13px 16px; text-align: left; border-bottom: 1px solid var(--line); }
.matrix thead th { font-family: var(--mono); font-size: 9.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted-2); font-weight: 500; }
.matrix tbody th { font-weight: 500; color: var(--muted); }
.matrix td { color: var(--ink); }
.matrix .yes { color: var(--acid); }
.matrix .no { color: var(--muted-2); }
.matrix tr:last-child th, .matrix tr:last-child td { border-bottom: 0; }

/* 文档目录 */
.toc { display: grid; gap: 8px; padding-left: 14px; border-left: 1px solid var(--line); }
.toc a { font-size: 12.5px; color: var(--muted); }
.toc a:hover { color: var(--acid); }

/* 响应式补充 */
@media (max-width: 900px) {
  .mode-row { grid-template-columns: 1fr; gap: 10px; }
  .duo { grid-template-columns: 1fr; }
  .matrix { font-size: 12px; }
  .matrix th, .matrix td { padding: 11px 10px; }
}

/* 提示词库浮层示意 */
.prompt-sheet {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 12px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #141a16;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .4);
}
.prompt-sheet__head { display: grid; gap: 4px; }
.prompt-sheet__head strong { font-family: var(--serif); font-size: 22px; font-weight: 500; letter-spacing: -.04em; }
.prompt-sheet__search {
  display: flex; align-items: center; gap: 9px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #1a211c;
  font-size: 12px;
  color: var(--muted-2);
}
.prompt-sheet__search span { font-size: 14px; color: var(--muted); }
.prompt-sheet__cats { display: flex; flex-wrap: wrap; gap: 6px; }
.prompt-sheet__cats span {
  padding: 4px 11px;
  border: 1px solid var(--line);
  border-radius: 99px;
  font-size: 11px;
  color: var(--muted);
}
.prompt-sheet__cats .is-active { border-color: rgba(217, 243, 107, .4); color: var(--acid); background: rgba(217, 243, 107, .08); }
.prompt-sheet__list { display: grid; gap: 8px; }
.prompt-sheet__list article {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) auto;
  gap: 11px;
  align-items: center;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
}
.prompt-sheet__cover { width: 52px; height: 52px; border-radius: 8px; }
.prompt-sheet__list small { font-family: var(--mono); font-size: 8.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted-2); }
.prompt-sheet__list b { display: block; font-size: 12px; font-weight: 600; letter-spacing: -.01em; }
.prompt-sheet__list p {
  font-size: 10.5px;
  color: var(--muted-2);
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.prompt-sheet__list button {
  padding: 5px 10px;
  border: 1px solid rgba(217, 243, 107, .34);
  border-radius: 7px;
  background: rgba(217, 243, 107, .1);
  color: var(--acid);
  font-size: 10.5px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

/* 素材库示意 */
.library-head { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.library-tabs { display: flex; gap: 6px; font-family: var(--mono); font-size: 9.5px; letter-spacing: .06em; }
.library-tabs b {
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 99px;
  color: var(--muted);
  font-weight: 400;
}
.library-tabs .is-active { border-color: rgba(217, 243, 107, .36); color: var(--acid); background: rgba(217, 243, 107, .08); }
.library-grid { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.library-grid span { aspect-ratio: 1; border-radius: 9px; border: 1px solid rgba(0, 0, 0, .35); }
.library-foot {
  position: relative;
  z-index: 2;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin-top: 14px; padding-top: 13px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .07em;
  color: var(--muted-2);
  text-transform: uppercase;
}
.library-foot span:first-child { display: inline-flex; align-items: center; gap: 7px; }

/* 连线演示 */
.wire-demo {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 64px minmax(0, 1.1fr);
  gap: 0;
  align-items: center;
  min-height: 300px;
}
.wire-demo__col { display: grid; gap: 10px; }
.wire-demo__col--right { gap: 26px; }
.wire-pill {
  display: grid;
  place-items: center;
  min-height: 56px;
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 11px;
  background: var(--panel);
  font-size: 11.5px;
  color: var(--muted);
}
.wire-pill--text { min-height: 44px; font-family: var(--mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--acid); border-color: rgba(217, 243, 107, .3); background: rgba(217, 243, 107, .06); }
.wire-pill--gen { min-height: 72px; border-color: rgba(217, 243, 107, .45); color: var(--ink); font-weight: 600; box-shadow: 0 0 0 1px rgba(217, 243, 107, .14); }
.wire-pill--out { min-height: 96px; color: #10201a; }
.wire-demo__mid { position: relative; height: 100%; min-height: 240px; }
.wire-line {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background: rgba(217, 243, 107, .45);
}
.wire-line:nth-child(1) { top: 22%; transform: rotate(9deg); transform-origin: left center; }
.wire-line:nth-child(2) { top: 50%; }
.wire-line:nth-child(3) { top: 74%; transform: rotate(-9deg); transform-origin: left center; }

/* 横屏示意 */
.landscape-demo {
  position: relative;
  z-index: 2;
  aspect-ratio: 16 / 9;
  display: grid;
  grid-template-rows: auto 1fr;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: #0b100e;
  overflow: hidden;
}
.landscape-demo__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .1em;
  color: var(--muted-2);
  text-transform: uppercase;
}
.landscape-demo__bar span:last-child { color: var(--acid); }
.landscape-demo__stage {
  position: relative;
  padding: 14px;
  background-image: radial-gradient(rgba(230, 238, 229, .14) 1px, transparent 1px);
  background-size: 20px 20px;
}

/* 上传感知示意 */
.upload-demo { position: relative; z-index: 2; display: grid; gap: 8px; }
.upload-demo__row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
}
.upload-demo__row > span:first-child { width: 44px; height: 44px; border-radius: 8px; }
.upload-demo__row b { display: block; font-size: 12px; font-weight: 600; letter-spacing: -.01em; }
.upload-demo__row small { font-family: var(--mono); font-size: 9px; letter-spacing: .06em; color: var(--muted-2); }
.upload-demo__row.is-done { border-color: rgba(157, 232, 208, .22); background: rgba(157, 232, 208, .04); }
.upload-chip {
  padding: 5px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .06em;
  color: var(--muted);
  white-space: nowrap;
}
.upload-chip--done { border-color: rgba(157, 232, 208, .34); color: var(--cyan); background: rgba(157, 232, 208, .08); }

/* 环境变量清单 */
.env-list { display: grid; gap: 10px; }
.env-list div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 12px;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #0d1210;
  font-family: var(--mono);
  font-size: 11px;
  align-items: center;
}
.env-list code { color: var(--acid); font-size: 10.5px; overflow-wrap: anywhere; }
.env-list span { color: var(--muted-2); font-size: 10.5px; line-height: 1.5; }

/* 发布记录 */
.log-list { display: grid; gap: 10px; }
.log-item {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.log-item:last-child { border-bottom: 0; }
.log-item__ver { font-family: var(--mono); font-size: 11px; letter-spacing: .06em; color: var(--acid); }
.log-item__ver small { display: block; color: var(--muted-2); font-size: 9.5px; letter-spacing: .08em; margin-top: 3px; }
.log-item ul { display: grid; gap: 7px; }
.log-item li { font-size: 13px; color: var(--muted); line-height: 1.65; }
.log-item li b { color: var(--ink); font-weight: 600; }

/* 账户卡片示意 */
.account-demo { position: relative; z-index: 2; display: grid; gap: 8px; }
.account-demo__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--panel);
  font-size: 12.5px;
  color: var(--muted);
}
.account-demo__row b { color: var(--ink); font-family: var(--mono); font-size: 12px; font-weight: 500; letter-spacing: .02em; }
.account-demo__row b.is-ok { color: var(--cyan); }
.account-demo__bar { height: 4px; border-radius: 99px; background: rgba(230, 238, 229, .12); overflow: hidden; margin-top: 4px; }
.account-demo__bar i { display: block; height: 100%; width: 62%; border-radius: 99px; background: linear-gradient(90deg, var(--acid), var(--cyan)); }

/* ---------- 入场动画 ---------- */

[data-reveal] { opacity: 0; transform: translateY(14px); }
[data-reveal].is-in { opacity: 1; transform: none; transition: opacity .55s cubic-bezier(.2, .7, .3, 1), transform .55s cubic-bezier(.2, .7, .3, 1); }

/* ---------- 响应式 ---------- */

@media (max-width: 1080px) {
  .hero__grid { grid-template-columns: 1fr; gap: 42px; }
  .hero__visual { min-height: 480px; order: 2; }
  .hero__note { display: none; }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-hero__grid { grid-template-columns: 1fr; }
  .cta-band__inner { grid-template-columns: 1fr; }
  .cta-band__actions { justify-content: flex-start; }
}

@media (max-width: 900px) {
  .site-nav { display: none; }
  .site-header__actions .btn--ghost { display: none; }
  .nav-toggle { display: inline-flex; }
  .split, .split--reverse { grid-template-columns: 1fr; }
  .split--reverse > :first-child { order: 0; }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: 1fr; }
  .step { border-right: 0; }
  .timeline__item { grid-template-columns: 1fr; gap: 10px; }
  .timeline__when { padding-top: 0; }
}

@media (max-width: 680px) {
  .shell, .shell--wide { width: min(100% - 32px, var(--shell)); }
  body { font-size: 14px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero__visual { min-height: 420px; }
  .phone { width: min(270px, 88%); }
  .board {
    aspect-ratio: auto;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    padding: 12px;
    align-content: start;
  }
  .board .node {
    position: static;
    width: auto;
    left: auto;
    top: auto;
  }
  .board__svg { display: none; }
  .board-badge {
    position: static;
    grid-column: 1 / -1;
    justify-self: start;
    margin-top: 2px;
  }
  .site-footer__grid { grid-template-columns: 1fr; gap: 26px; }
  .cta-band { border-radius: 18px; padding: 28px 22px; }
  .spec-table th { width: 38%; }
  .jump-nav { top: 70px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}