:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --bg-soft: #ffffff;
  --panel: #ffffff;
  --panel-2: #f3f6fa;
  --panel-raised: #eaf0f7;
  --text: #0d1b2f;
  --text-soft: #24344d;
  --muted: #617086;
  --faint: #8d9aab;
  --border: rgba(15, 26, 44, 0.1);
  --border-2: rgba(15, 26, 44, 0.16);
  --border-strong: rgba(16, 99, 196, 0.34);
  --accent: #1268c5;
  --accent-2: #0f7bd6;
  --green: #138a67;
  --amber: #b76b00;
  --red: #c8324a;
  --shadow-sm: 0 1px 2px rgba(15, 26, 44, 0.05), 0 1px 0 rgba(255, 255, 255, 0.8) inset;
  --shadow-md: 0 16px 38px rgba(16, 36, 66, 0.1);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --mono: "JetBrains Mono", "SFMono-Regular", "Cascadia Code", Consolas, monospace;
  --sans: "Inter", "PingFang SC", "Noto Sans SC", "Source Han Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --sidebar-w: 264px;
  --content-max: 1320px;
  --rail-w: 320px;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #070d18;
  --bg-soft: #0b1422;
  --panel: #0f1a2c;
  --panel-2: #131f33;
  --panel-raised: #18253c;
  --text: #e8eef8;
  --text-soft: #cbd5e6;
  --muted: #8a99b3;
  --faint: #5c6c86;
  --border: rgba(140, 160, 190, 0.14);
  --border-2: rgba(140, 160, 190, 0.22);
  --border-strong: rgba(91, 184, 255, 0.42);
  --accent: #5bb8ff;
  --accent-2: #7ad0ff;
  --green: #4ed3a0;
  --amber: #ffc857;
  --red: #ff7c8a;
  --shadow-sm: 0 1px 0 rgba(255, 255, 255, 0.02) inset, 0 1px 2px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--sans);
  font-size: 15px;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }

code, pre { font-family: var(--mono); }

code {
  padding: 0.1rem 0.36rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel-2);
  color: var(--accent);
  font-size: 0.86em;
  word-break: break-word;
}

pre code {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: inherit;
  font-size: 0.84rem;
}

/* ---------- Layout shell ---------- */

.shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  display: flex;
  height: 100vh;
  flex-direction: column;
  gap: 1.1rem;
  padding: 1.25rem 1rem;
  border-right: 1px solid var(--border);
  background: var(--bg-soft);
  overflow-y: auto;
}

html[data-theme="light"] .sidebar { background: #fbfcfe; }

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.25rem 0.4rem;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  overflow: hidden;
}

.brand-mark img { width: 100%; height: 100%; object-fit: contain; display: block; }

.brand strong { display: block; font-size: 0.98rem; letter-spacing: -0.005em; }
.brand small { color: var(--muted); font-size: 0.74rem; }

.search-box {
  display: grid;
  gap: 0.35rem;
  color: var(--faint);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.search-box input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  outline: 0;
  padding: 0.55rem 0.7rem;
  background: var(--panel);
  color: var(--text);
  font: inherit;
  font-size: 0.88rem;
}

.search-box input:focus {
  border-color: var(--border-strong);
  box-shadow: 0 0 0 3px rgba(91, 184, 255, 0.14);
}

.search-status {
  display: none;
  margin: -0.25rem 0 0;
  padding: 0 0.15rem;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.search-status.is-active {
  display: block;
}

.mobile-quick-nav {
  display: none;
}

.nav { display: grid; gap: 0.9rem; }

.nav-group { display: grid; gap: 0.12rem; }

.nav-group-title {
  padding: 0 0.6rem;
  margin-bottom: 0.3rem;
  color: var(--faint);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
}

.nav a {
  padding: 0.42rem 0.65rem;
  border-radius: 6px;
  color: var(--text-soft);
  font-size: 0.88rem;
  border-left: 2px solid transparent;
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease;
}

.nav a:hover { background: var(--panel-2); color: var(--text); }

.nav a.active {
  background: var(--panel-2);
  border-left-color: var(--accent);
  color: var(--text);
  font-weight: 600;
}

.sidebar-card {
  margin-top: auto;
  padding: 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--panel);
}

.sidebar-card .eyebrow { display: block; margin-bottom: 0.45rem; }

.sidebar-card code { display: inline-block; max-width: 100%; word-break: break-all; }

.sidebar-card p {
  margin: 0.55rem 0 0;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.6;
}

/* ---------- Content / topbar ---------- */

.content {
  width: 100%;
  max-width: calc(var(--content-max) + 4rem);
  margin: 0 auto;
  padding: 0.5rem 2rem 4rem;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--rail-w);
  gap: 1.35rem;
  align-items: start;
}

.main-flow { min-width: 0; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 0;
  background: linear-gradient(to bottom, var(--bg) 70%, rgba(0, 0, 0, 0));
  backdrop-filter: blur(8px);
}

.topbar-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ---------- Buttons / pill ---------- */

.status-pill,
.theme-toggle,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  border: 1px solid var(--border-2);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  font: inherit;
  font-size: 0.85rem;
  height: 34px;
  padding: 0 0.85rem;
  white-space: nowrap;
  transition: border-color 120ms ease, background 120ms ease, color 120ms ease;
}

.status-pill { color: var(--muted); padding: 0 0.75rem; }

.pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(78, 211, 160, 0.16);
}

.theme-toggle, .button { cursor: pointer; }

.theme-toggle:hover, .button:hover { border-color: var(--border-strong); }

.button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}
.button.primary:hover { background: var(--accent-2); border-color: var(--accent-2); }

.button.ghost { background: transparent; color: var(--text-soft); }

.portal-button { color: var(--green); border-color: rgba(78, 211, 160, 0.4); }
.portal-button:hover { background: rgba(78, 211, 160, 0.08); }

.thinktank-button {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}
.thinktank-button:hover { background: var(--accent-2); border-color: var(--accent-2); }

/* ---------- Section spacing ---------- */

.doc-section {
  scroll-margin-top: 80px;
  margin: 1.4rem 0;
}

h1, h2, h3, h4, p { margin-top: 0; }

h1 {
  margin-bottom: 1rem;
  font-size: clamp(2.15rem, 3rem, 3.2rem);
  line-height: 1.05;
  letter-spacing: 0;
  font-weight: 700;
  color: var(--text);
}

h2 {
  margin-bottom: 0.5rem;
  font-size: 1.75rem;
  line-height: 1.25;
  letter-spacing: 0;
  font-weight: 700;
  color: var(--text);
}

h3 {
  margin-bottom: 0.45rem;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0;
}

p, li {
  color: var(--text-soft);
  line-height: 1.7;
}

.section-heading { margin: 3rem 0 1rem; }
.section-heading.compact-heading { margin-top: 1.6rem; }
.section-heading p { max-width: 720px; margin-bottom: 0; color: var(--muted); }
.section-heading h2 { margin-top: 0.35rem; }
.section-heading h3 { margin-top: 0.35rem; font-size: 1.2rem; }

/* ---------- Hero ---------- */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.65fr);
  gap: 1rem;
  padding: 0;
  align-items: stretch;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1.6rem 1.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--panel);
  position: relative;
  overflow: hidden;
}

.hero-copy::before {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background:
    linear-gradient(135deg, rgba(18, 104, 197, 0.11), transparent 44%),
    linear-gradient(320deg, rgba(19, 138, 103, 0.08), transparent 52%);
}

.hero-copy > * { position: relative; }

.hero-copy h1 { margin-top: 0.6rem; }

.hero-copy .lede {
  max-width: 560px;
  margin-bottom: 0;
  font-size: 0.98rem;
  color: var(--muted);
  line-height: 1.65;
}

.tool-route-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1.15rem;
}

.tool-route-pills a {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--panel-2);
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 650;
  transition: border-color 120ms ease, background 120ms ease, color 120ms ease;
}

.tool-route-pills a:hover,
.tool-route-pills a.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.endpoint-card {
  display: flex;
  flex-direction: column;
  padding: 1.2rem 1.3rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--panel);
}

.endpoint-card dl {
  display: grid;
  gap: 0.5rem;
  margin: 0.85rem 0 0;
}

.endpoint-card div {
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel-2);
}

.endpoint-card dt {
  margin-bottom: 0.25rem;
  color: var(--muted);
  font-size: 0.78rem;
}

.endpoint-card dd {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text);
  word-break: break-all;
}

.endpoint-card dd code {
  background: transparent;
  border: 0;
  padding: 0;
  color: var(--accent);
  font-size: 0.82rem;
}

.route-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  justify-content: center;
  padding: 1.25rem 1.3rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(18, 104, 197, 0.05), transparent 62%),
    var(--panel);
  color: var(--text);
  box-shadow: var(--shadow-sm);
}

.route-card .eyebrow { color: var(--accent); }

.route-card h2 {
  margin: 0.5rem 0 0.75rem;
  color: var(--text);
  font-size: 1.25rem;
}

.route-card ol {
  display: grid;
  gap: 0.55rem;
  margin: 0 0 1.1rem;
  padding: 0;
  list-style: none;
  counter-reset: route;
}

.route-card li {
  counter-increment: route;
  display: flex;
  gap: 0.55rem;
  align-items: center;
  color: var(--text-soft);
  line-height: 1.45;
}

.route-card li::before {
  content: counter(route);
  display: grid;
  width: 1.45rem;
  height: 1.45rem;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 999px;
  background: rgba(18, 104, 197, 0.1);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 800;
}

.route-card code {
  border-color: var(--border);
  background: var(--panel-2);
  color: var(--accent);
}

.route-card .button {
  align-self: flex-start;
  border-color: var(--border-2);
  background: var(--panel);
  color: var(--text);
}

/* ---------- Sticky route rail ---------- */

.route-rail {
  position: sticky;
  top: 4.25rem;
  display: grid;
  gap: 0.8rem;
  align-self: start;
  max-height: calc(100vh - 5rem);
  overflow-y: auto;
  padding-bottom: 0.4rem;
  scrollbar-width: thin;
}

.rail-panel {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--panel);
  box-shadow: var(--shadow-sm);
}

.rail-panel h2,
.rail-panel h3 {
  margin: 0.45rem 0 0.45rem;
}

.rail-panel p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.62;
}

.rail-dark {
  border-color: transparent;
  background: #0d1f33;
}

.rail-dark .eyebrow { color: #7bd6ff; }
.rail-dark h2 { color: #fff; font-size: 1.25rem; }
.rail-dark p { color: #c8d7e8; }
.rail-dark code {
  border-color: rgba(123, 214, 255, 0.24);
  background: rgba(123, 214, 255, 0.1);
  color: #9de1ff;
}

.rail-checklist {
  display: grid;
  gap: 0.55rem;
  margin: 0.9rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: rail-step;
}

.rail-checklist li {
  counter-increment: rail-step;
  display: flex;
  gap: 0.55rem;
  align-items: center;
  padding: 0.55rem 0.6rem;
  border: 1px solid rgba(123, 214, 255, 0.16);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  color: #edf6ff;
  font-size: 0.86rem;
  line-height: 1.35;
}

.rail-checklist li::before {
  content: counter(rail-step);
  display: grid;
  width: 1.3rem;
  height: 1.3rem;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 999px;
  background: rgba(123, 214, 255, 0.16);
  color: #9de1ff;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 800;
}

.rail-endpoints {
  display: grid;
  gap: 0.55rem;
  margin: 0.8rem 0 0;
}

.rail-endpoints div {
  padding: 0.58rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel-2);
}

.rail-endpoints dt {
  margin-bottom: 0.22rem;
  color: var(--muted);
  font-size: 0.74rem;
}

.rail-endpoints dd {
  margin: 0;
  word-break: break-all;
}

.rail-endpoints code {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--accent);
  font-size: 0.78rem;
}

.rail-errors {
  display: grid;
  gap: 0.45rem;
  margin-top: 0.75rem;
}

.rail-errors a {
  display: grid;
  grid-template-columns: 3.3rem minmax(0, 1fr);
  gap: 0.6rem;
  align-items: center;
  padding: 0.52rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel-2);
}

.rail-errors strong {
  color: var(--red);
  font-family: var(--mono);
  font-size: 0.9rem;
}

.rail-errors span {
  color: var(--text-soft);
  font-size: 0.82rem;
}

.rail-contact {
  border-color: rgba(183, 107, 0, 0.22);
  background: var(--warm);
}

.rail-contact a {
  display: inline-flex;
  margin-top: 0.25rem;
  color: var(--accent);
  font-weight: 750;
}

/* ---------- Path cards (3 主路径) ---------- */

.paths {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
}

.path-card {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.1rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--panel);
  color: var(--text);
  transition: border-color 140ms ease, transform 140ms ease, background 140ms ease;
  position: relative;
}

.path-card:hover {
  border-color: var(--border-strong);
  background: var(--panel-2);
  transform: translateY(-1px);
}

.path-tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.path-card h3 { margin: 0.15rem 0 0.2rem; font-size: 1.05rem; }

.path-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.path-cta {
  margin-top: auto;
  padding-top: 0.7rem;
  font-size: 0.82rem;
  color: var(--accent);
  font-weight: 600;
}

/* ---------- Task launcher / error radar ---------- */

.task-launcher {
  margin-top: 1rem;
}

.task-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.task-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  gap: 0.58rem;
  padding: 1rem 1.05rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--panel);
  box-shadow: var(--shadow-sm);
  transition: border-color 140ms ease, box-shadow 140ms ease, background 140ms ease;
}

.task-card:hover {
  border-color: var(--border-strong);
  background: var(--bg-soft);
  box-shadow: var(--shadow-md);
}

.task-card.is-featured {
  border-color: rgba(18, 104, 197, 0.3);
  background:
    linear-gradient(180deg, rgba(18, 104, 197, 0.08), transparent 55%),
    var(--panel);
}

.danger-card {
  border-color: rgba(200, 50, 74, 0.26);
  background:
    linear-gradient(180deg, rgba(200, 50, 74, 0.06), transparent 58%),
    var(--panel);
}

.task-kicker {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.task-card h3 {
  margin: 0;
  font-size: 1rem;
}

.task-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.55;
}

.task-card dl {
  display: grid;
  gap: 0.32rem;
  margin: 0;
  padding: 0.62rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel-2);
}

.task-card dl div {
  display: grid;
  grid-template-columns: 3.05rem minmax(0, 1fr);
  gap: 0.55rem;
  align-items: start;
}

.task-card dt {
  color: var(--faint);
  font-size: 0.72rem;
  font-weight: 700;
}

.task-card dd {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.78rem;
  line-height: 1.45;
}

.error-radar {
  margin-top: 1.6rem;
}

.issue-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.issue-card {
  display: grid;
  gap: 0.35rem;
  padding: 1rem 1.05rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--panel);
  box-shadow: var(--shadow-sm);
  transition: border-color 140ms ease, background 140ms ease;
}

.issue-card:hover {
  border-color: var(--border-strong);
  background: var(--bg-soft);
}

.issue-card strong {
  color: var(--red);
  font-family: var(--mono);
  font-size: 1.25rem;
  letter-spacing: 0;
}

.issue-card span {
  color: var(--text);
  font-weight: 700;
}

.issue-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.6;
}

.workflow-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.workflow-summary article {
  display: grid;
  gap: 0.45rem;
  padding: 0.95rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(18, 104, 197, 0.045), transparent 60%),
    var(--panel);
}

.workflow-summary span {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
}

.workflow-summary strong {
  color: var(--text);
  font-size: 0.94rem;
  line-height: 1.45;
}

.workflow-summary p {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.62;
}

.tool-routing-strip {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  margin: 0 0 1rem;
  padding: 0.15rem 0 0.45rem;
  scrollbar-width: thin;
}

.tool-routing-strip a {
  display: grid;
  flex: 0 0 auto;
  min-width: 180px;
  gap: 0.2rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel);
}

.tool-routing-strip strong {
  color: var(--text);
  font-size: 0.86rem;
}

.tool-routing-strip span {
  color: var(--muted);
  font-size: 0.78rem;
}

/* ---------- Metric / info / step cards ---------- */

.grid { display: grid; gap: 0.85rem; }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.metric-card,
.step-card,
.info-card,
.compact-grid article,
.docs-link-card {
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: var(--radius-md);
  padding: 1rem 1.1rem;
}

.metric-card { position: relative; overflow: hidden; }

.metric-card span { color: var(--muted); font-size: 0.82rem; }
.metric-card strong {
  display: block;
  margin: 0.4rem 0 0.3rem;
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--text);
}
.metric-card p { margin-bottom: 0; font-size: 0.88rem; color: var(--muted); }

.metric-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 3px;
  height: 100%;
}
.accent-green::before { background: var(--green); }
.accent-blue::before { background: var(--accent); }
.accent-amber::before { background: var(--amber); }

/* ---------- Client download cards ---------- */

.download-section {
  margin-top: 2rem;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.95rem;
}

.download-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(91, 184, 255, 0.045), transparent 44%),
    var(--panel);
  box-shadow: var(--shadow-sm);
}

.download-card-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.download-card-head h3 {
  margin: 0.2rem 0 0;
  font-size: 1.12rem;
}

.download-icon {
  display: grid;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  background: rgba(91, 184, 255, 0.1);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 800;
}

.download-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.install-command {
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel-2);
}

.install-command code {
  display: block;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text-soft);
  line-height: 1.55;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: auto;
}

.download-actions .button {
  height: 32px;
  padding-inline: 0.75rem;
  font-size: 0.82rem;
}

.download-meta {
  display: grid;
  gap: 0.25rem;
  margin: 0;
  padding-left: 1.05rem;
}

.download-meta li {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.55;
}

/* ---------- Steps / split / terminal grid ---------- */

.steps,
.split,
.compact-grid,
.terminal-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.split { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.compact-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.terminal-grid { margin-bottom: 1rem; }

.step-card { position: relative; padding-top: 1.1rem; }

.step-index {
  display: inline-block;
  margin-bottom: 0.65rem;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.step-card p, .info-card p { font-size: 0.9rem; color: var(--muted); margin-bottom: 0; }
.info-card ul { margin: 0.4rem 0 0; padding-left: 1.1rem; }
.info-card li { font-size: 0.9rem; color: var(--muted); line-height: 1.7; }
.info-card code, .step-card code { font-size: 0.8em; }

/* ---------- Notes ---------- */

.note {
  padding: 0.75rem 0.9rem;
  margin: 0.85rem 0;
  border: 1px solid rgba(91, 184, 255, 0.28);
  border-left-width: 3px;
  border-radius: var(--radius-sm);
  background: rgba(91, 184, 255, 0.06);
  color: var(--text-soft);
  font-size: 0.88rem;
  line-height: 1.7;
}

.note.warning {
  border-color: rgba(255, 200, 87, 0.32);
  border-left-color: var(--amber);
  background: rgba(255, 200, 87, 0.07);
}

/* ---------- Code blocks ---------- */

.code-card {
  margin-top: 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--panel);
  overflow: hidden;
}

.code-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.6rem 0.85rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--muted);
  font-size: 0.82rem;
}

.code-title span {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-soft);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

.code-title button {
  flex-shrink: 0;
  border: 1px solid var(--border-2);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  padding: 0.28rem 0.6rem;
  font-size: 0.78rem;
  transition: border-color 120ms ease, background 120ms ease;
}

.code-title button:hover { border-color: var(--border-strong); }

pre {
  overflow-x: auto;
  max-width: 100%;
  margin: 0;
  padding: 0.95rem 1rem;
  background: #0a121f;
  color: #d6e4f5;
  line-height: 1.65;
  scrollbar-width: thin;
}

html[data-theme="light"] pre {
  background: #0f172a;
  color: #e2e8f0;
}

pre::-webkit-scrollbar { height: 6px; }
pre::-webkit-scrollbar-thumb { background: rgba(140, 160, 190, 0.3); border-radius: 3px; }

/* ---------- Model chips ---------- */

.model-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.85rem;
}

.model-grid span {
  padding: 0.32rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel-2);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.78rem;
}

/* ---------- Tabs ---------- */

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin: 0.5rem 0 0.85rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}

.tab {
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.85rem;
  padding: 0.4rem 0.75rem;
  transition: background 120ms ease, color 120ms ease, border-color 120ms ease;
}

.tab:hover { color: var(--text); background: var(--panel-2); }

.tab.active {
  border-color: var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-weight: 600;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ---------- Pricing / log table / model table ---------- */

.pricing-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  overflow: hidden;
  margin-top: 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--panel);
}

.pricing-row > div {
  padding: 0.95rem 1.1rem;
  border-right: 1px solid var(--border);
}
.pricing-row > div:last-child { border-right: 0; }
.pricing-row span { display: block; color: var(--muted); font-size: 0.82rem; }
.pricing-row strong { display: block; margin-top: 0.4rem; font-size: 0.98rem; color: var(--text); }

.log-table,
.model-table {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  overflow: hidden;
  margin: 0.85rem 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--panel);
}

.log-table > div,
.model-table > div {
  display: grid;
  gap: 0.3rem;
  padding: 0.85rem 0.95rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.log-table strong,
.model-table strong {
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.86rem;
}

.log-table span,
.model-table span {
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.65;
}

.opencode-config-table {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* ---------- OpenCode screenshot guide ---------- */

.opencode-guide {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  margin: 1rem 0;
}

.guide-shot {
  display: grid;
  grid-template-rows: minmax(220px, auto) auto;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--panel);
}

.guide-shot.wide {
  grid-column: 1 / -1;
}

.guide-shot.compact img {
  max-height: 360px;
}

.guide-shot img {
  width: 100%;
  height: 100%;
  max-height: 420px;
  object-fit: contain;
  padding: 0.65rem;
  background:
    linear-gradient(135deg, rgba(91, 184, 255, 0.06), rgba(78, 211, 160, 0.04)),
    var(--panel-2);
  border-bottom: 1px solid var(--border);
}

.guide-shot div {
  padding: 0.85rem 0.95rem 0.95rem;
}

.guide-shot span {
  display: inline-block;
  margin-bottom: 0.35rem;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 700;
}

.guide-shot strong {
  display: block;
  color: var(--text);
  font-size: 0.96rem;
}

.guide-shot p {
  margin: 0.32rem 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

/* ---------- FAQ ---------- */

.faq { display: grid; gap: 0.5rem; }

.faq details {
  padding: 0.75rem 0.95rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel);
  transition: border-color 120ms ease;
}

.faq details[open] { border-color: var(--border-strong); }

.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
  font-size: 0.92rem;
  list-style: none;
  position: relative;
  padding-right: 1.4rem;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-weight: 400;
  font-size: 1rem;
}

.faq details[open] summary::after { content: "−"; }

.faq p {
  margin: 0.65rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.compact-faq { margin-top: 0.85rem; }

/* ---------- Compact grid / check list ---------- */

.compact-grid article { padding: 0.95rem 1rem; }
.compact-grid strong { display: block; margin-bottom: 0.35rem; color: var(--text); }
.compact-grid span { color: var(--muted); font-size: 0.86rem; line-height: 1.65; }

.check-list {
  display: grid;
  gap: 0.6rem;
  padding: 1rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--panel);
}

.check-list div {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  color: var(--text-soft);
  font-size: 0.92rem;
  line-height: 1.7;
}

.check-list span { color: var(--green); font-weight: 700; flex-shrink: 0; }

/* ---------- Docs link card ---------- */

.docs-link-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.2rem;
}

.docs-link-card h3 { margin: 0.35rem 0 0.3rem; font-size: 1.1rem; }
.docs-link-card p { margin: 0; color: var(--muted); font-size: 0.9rem; }

/* ---------- Footer ---------- */

.footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.82rem;
}

/* ---------- Search hide ---------- */

.is-hidden-by-search { display: none; }

.search-empty {
  display: grid;
  gap: 0.75rem;
  margin: 1rem 0 1.25rem;
  padding: 1rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background:
    linear-gradient(135deg, rgba(91, 184, 255, 0.08), transparent 58%),
    var(--panel);
  box-shadow: var(--shadow-sm);
}

.search-empty[hidden] {
  display: none;
}

.search-empty strong {
  color: var(--text);
  font-size: 1.02rem;
}

.search-empty p {
  margin: 0;
  color: var(--muted);
}

.search-empty div {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

mark {
  border-radius: 3px;
  padding: 0 0.15em;
  background: rgba(255, 200, 87, 0.32);
  color: inherit;
}

/* ---------- Responsive ---------- */

@media (max-width: 1080px) {
  .content-grid { grid-template-columns: 1fr; }
  .route-rail { display: none; }
  .hero { grid-template-columns: 1fr; }
  .paths { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .task-grid,
  .issue-grid,
  .workflow-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  :root { --sidebar-w: 100%; }

  .shell { display: block; }

  .sidebar {
    position: relative;
    height: auto;
    gap: 0.7rem;
    padding: 0.85rem 1rem 0.75rem;
    border-right: 0;
    border-bottom: 1px solid var(--border);
    overflow: visible;
  }

  .brand {
    padding: 0;
  }

  .search-box {
    gap: 0.3rem;
  }

  .sidebar-nav {
    display: none;
  }

  .mobile-quick-nav {
    position: relative;
    z-index: 20;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0.45rem;
  }

  .mobile-quick-nav > a,
  .mobile-more summary {
    display: inline-flex;
    min-height: 34px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--panel);
    color: var(--text-soft);
    font-size: 0.85rem;
    font-weight: 650;
    cursor: pointer;
    list-style: none;
  }

  .mobile-more {
    min-width: 0;
  }

  .mobile-more[open] {
    grid-column: 1 / -1;
  }

  .mobile-more summary {
    width: 100%;
  }

  .mobile-more summary::-webkit-details-marker {
    display: none;
  }

  .mobile-quick-nav > a:hover,
  .mobile-more summary:hover,
  .mobile-more[open] summary,
  .mobile-quick-nav > a.active,
  .mobile-more-panel a.active {
    border-color: var(--border-strong);
    color: var(--text);
  }

  .mobile-more-panel {
    position: absolute;
    right: 0;
    left: 0;
    top: calc(100% + 0.45rem);
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.45rem;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--panel);
    box-shadow: var(--shadow-md);
  }

  .mobile-more[open] .mobile-more-panel {
    position: static;
    margin-top: 0.45rem;
  }

  .mobile-more-panel a {
    display: inline-flex;
    min-height: 34px;
    align-items: center;
    justify-content: center;
    padding: 0.45rem 0.55rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--panel-2);
    color: var(--text-soft);
    font-size: 0.85rem;
    text-align: center;
  }

  .sidebar-card {
    display: none;
  }

  .content { padding: 0.5rem 1.25rem 3rem; }

	  .grid.three,
	  .steps,
	  .split,
	  .terminal-grid,
	  .compact-grid,
	  .pricing-row,
	  .paths,
	  .task-grid,
	  .issue-grid,
	  .workflow-summary,
	  .download-grid {
	    grid-template-columns: 1fr;
	  }

  .log-table,
  .model-table,
  .opencode-config-table,
  .opencode-guide {
    grid-template-columns: 1fr;
  }

  .guide-shot.wide {
    grid-column: auto;
  }

  .pricing-row > div { border-right: 0; border-bottom: 1px solid var(--border); }
  .pricing-row > div:last-child { border-bottom: 0; }

  .docs-link-card {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  body { font-size: 14.5px; }

  .content { padding: 0.5rem 1rem 2.5rem; }

  .doc-section {
    margin: 1rem 0;
    scroll-margin-top: 42px;
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
    padding: 0.45rem 0;
  }

  .topbar .status-pill { display: none; }

  .topbar-actions {
    flex-wrap: nowrap;
    justify-content: flex-start;
  }

  .topbar .theme-toggle { display: none; }

  .topbar-actions > * {
    flex: 1 1 0;
    min-width: 0;
    white-space: normal;
    text-align: center;
  }

  .hero {
    gap: 0.75rem;
  }

  .hero-copy {
    padding: 1rem 1rem 1.05rem;
  }

  .hero-copy h1 {
    margin-top: 0.45rem;
    margin-bottom: 0.75rem;
    font-size: 2rem;
    line-height: 1.08;
  }

  .hero-copy .lede {
    display: -webkit-box;
    overflow: hidden;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    font-size: 0.94rem;
    line-height: 1.55;
  }

  .tool-route-pills {
    gap: 0.35rem;
    margin-top: 0.9rem;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 0.15rem;
    scrollbar-width: thin;
  }

  .tool-route-pills a {
    flex: 1 1 0;
    min-width: 0;
    padding-inline: 0.45rem;
    font-size: 0;
  }

  .tool-route-pills a::after {
    content: attr(data-short);
    font-size: 0.82rem;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.42rem;
    margin-top: 0.9rem;
  }

  .hero-actions .button {
    width: 100%;
    white-space: normal;
    min-height: 34px;
    height: auto;
    padding-block: 0.42rem;
  }

  .hero-actions .button.primary { grid-column: auto; }

  .hero-actions .button[href="#task-launcher"] {
    display: none;
  }

  .route-card {
    display: none;
  }

  .task-card,
  .issue-card,
  .workflow-summary article {
    padding: 1rem;
  }

  .task-card dl div {
    grid-template-columns: 3rem minmax(0, 1fr);
  }

  .tool-routing-strip {
    margin-right: -1rem;
    padding-right: 1rem;
  }

  .endpoint-card { padding: 1rem 1.1rem; }

  .endpoint-card dd { font-size: 0.8rem; }

  .footer {
    flex-direction: column;
  }

  pre { padding: 0.8rem 0.85rem; }
}

@media (max-width: 420px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.45rem; }
  .button, .theme-toggle, .status-pill { font-size: 0.8rem; min-height: 32px; height: auto; }
  .mobile-quick-nav { gap: 0.35rem; }
  .mobile-quick-nav > a,
  .mobile-more summary,
  .mobile-more-panel a { font-size: 0.78rem; }
  .code-title { padding: 0.5rem 0.7rem; }
  pre code { font-size: 0.78rem; }
}