:root {
	--bg: #f7f8fa; --panel: #fff; --text: #1a1d21; --muted: #6b7280;
	--border: #e5e7eb; --accent: #4a3aff; --accent-soft: #ece9ff;
	--mai: #0a8a5f; --sys: #9ca3af; --radius: 10px;
}
@media (prefers-color-scheme: dark) {
	:root {
		--bg: #14161a; --panel: #1e2126; --text: #e6e8eb; --muted: #9199a3;
		--border: #2b2f36; --accent: #8a7dff; --accent-soft: #262041;
		--mai: #34d399; --sys: #6b7280;
	}
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.55 -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
	background: var(--bg); color: var(--text); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.nav { display: flex; align-items: center; justify-content: space-between;
	padding: 12px 20px; background: var(--panel); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; }
.brand { font-weight: 700; font-size: 19px; color: var(--text); }
.brand span { color: var(--accent); }
.nav-right { display: flex; align-items: center; gap: 16px; font-size: 14px; }
.nav-right #navUser { color: var(--muted); }
.lang-btn { border: 1px solid var(--border); border-radius: 999px; padding: 3px 9px;
	background: transparent; color: var(--muted); cursor: pointer; }

.wrap { max-width: 860px; margin: 0 auto; padding: 24px 20px 80px; }
.foot { text-align: center; color: var(--muted); font-size: 13px; padding: 30px 0; }

.page-head h1, .topic-head h1 { margin: 0 0 4px; font-size: 26px; }
.topic-title-row { display: flex; align-items: center; gap: 12px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.back { display: inline-block; margin-bottom: 10px; color: var(--muted); font-size: 14px; }
.hidden { display: none !important; }

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
	padding: 18px; margin: 16px 0; }
.panel h3 { margin: 0 0 12px; font-size: 16px; }
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.field input, .field textarea, .composer textarea {
	width: 100%; padding: 9px 11px; border: 1px solid var(--border); border-radius: 8px;
	background: var(--bg); color: var(--text); font: inherit; }
.actions { display: flex; gap: 10px; margin-top: 6px; }
.check { display: flex; align-items: center; gap: 6px; font-size: 14px; margin: 8px 0; }

.btn { border: none; background: var(--accent); color: #fff; padding: 9px 16px; border-radius: 8px;
	font: inherit; font-weight: 600; cursor: pointer; }
.btn:hover { opacity: .92; }
.btn.ghost { background: transparent; color: var(--accent); border: 1px solid var(--border); }
.btn.danger { background: #b91c1c; }

.tabs { display: flex; gap: 6px; margin: 14px 0 4px; }
.tab { background: transparent; border: 1px solid var(--border); color: var(--muted);
	padding: 6px 14px; border-radius: 999px; cursor: pointer; font: inherit; }
.tab.active { background: var(--accent-soft); color: var(--accent); border-color: transparent; }

.list { display: flex; flex-direction: column; gap: 10px; margin-top: 14px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
	padding: 14px 16px; display: block; }
.card:hover { border-color: var(--accent); text-decoration: none; }
.card .t { font-weight: 600; color: var(--text); font-size: 16px; }
.card .meta { color: var(--muted); font-size: 13px; margin-top: 3px; display: flex; gap: 12px; flex-wrap: wrap; }
.list.compact { gap: 7px; }
.list.compact .card { padding: 10px 12px; }
.card .t .badge { margin-left: 8px; }
.row-card { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.inline-form { display: flex; gap: 8px; }
.inline-form input { flex: 1; min-width: 0; padding: 9px 11px; border: 1px solid var(--border);
	border-radius: 8px; background: var(--bg); color: var(--text); font: inherit; }
.copy-box { white-space: pre-wrap; word-break: break-all; padding: 10px; border-radius: 8px;
	background: var(--bg); border: 1px solid var(--border); font-size: 12px; user-select: all; }
.docs-entry-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.docs-entry-grid .panel { margin: 16px 0 0; }
.docs-callout { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.docs-callout:hover { border-color: var(--accent); text-decoration: none; }
.docs { max-width: 820px; }
.docs h2 { margin-top: 34px; padding-top: 4px; border-top: 1px solid var(--border); }
.docs h3 { margin-top: 24px; }
.docs pre { overflow-x: auto; padding: 14px; border: 1px solid var(--border); border-radius: 8px;
	background: var(--panel); font: 13px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; }
.docs code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.docs :not(pre) > code { padding: 1px 5px; border-radius: 5px; background: var(--accent-soft); }
.docs table { width: 100%; border-collapse: collapse; display: block; overflow-x: auto; }
.docs th, .docs td { padding: 8px 10px; border: 1px solid var(--border); text-align: left; vertical-align: top; }
.docs th { background: var(--panel); }
.docs .contract-note { border-left: 3px solid var(--accent); padding-left: 12px; }

/* MAI 中文开发流程图解 */
.docs-overview { max-width: 980px; }
.overview-hero { display: flex; align-items: flex-end; justify-content: space-between; gap: 28px;
	padding: 28px; border: 1px solid var(--border); border-radius: 18px;
	background: linear-gradient(135deg, var(--accent-soft), var(--panel) 72%); }
.overview-hero h1 { margin: 2px 0 8px; font-size: clamp(28px, 4vw, 42px); line-height: 1.15; }
.overview-hero p { margin: 0; }
.overview-kicker { color: var(--accent); font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.overview-doc-link { flex: 0 0 auto; padding: 9px 13px; border: 1px solid var(--border); border-radius: 999px;
	background: var(--panel); font-size: 13px; font-weight: 600; }
.overview-rule { display: flex; align-items: center; gap: 14px; margin: 18px 0 0; padding: 16px 18px;
	border-radius: 12px; background: #e9f8f1; color: #075d43; }
.overview-rule-icon { display: grid; place-items: center; flex: 0 0 34px; height: 34px;
	border-radius: 50%; background: #0a8a5f; color: #fff; font-size: 18px; font-weight: 700; }

.relation-map { display: grid; grid-template-columns: 1fr 1.15fr 1fr 1.15fr 1fr; align-items: center; gap: 12px;
	padding: 24px; border: 1px solid var(--border); border-radius: 16px; background: var(--panel); }
.relation-node { min-height: 164px; display: flex; flex-direction: column; align-items: center; justify-content: center;
	gap: 7px; padding: 16px 10px; text-align: center; border: 1px solid var(--border); border-radius: 14px; }
.relation-node strong { font-size: 17px; }
.relation-node small { color: var(--muted); line-height: 1.5; }
.relation-icon { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 14px;
	color: #fff; font-size: 20px; font-weight: 800; box-shadow: 0 8px 20px rgba(0, 0, 0, .12); }
.node-vooo .relation-icon { background: var(--accent); }
.node-mai .relation-icon { background: var(--mai); }
.node-git .relation-icon { background: #24292f; }
.relation-lane { display: flex; flex-direction: column; gap: 24px; color: var(--muted); font-size: 12px; }
.relation-lane div { display: flex; align-items: center; justify-content: center; gap: 8px; text-align: center; }
.relation-lane b { color: var(--accent); font-size: 23px; line-height: 1; }
.relation-git-lane b { color: var(--mai); }
.relation-deploy { grid-column: 1 / -1; display: flex; align-items: center; justify-content: center; gap: 12px;
	margin-top: 4px; padding-top: 18px; border-top: 1px dashed var(--border); color: var(--muted); }
.relation-deploy b { color: var(--accent); font-size: 22px; }
.relation-deploy strong { padding: 7px 12px; border-radius: 8px; background: var(--accent-soft); color: var(--accent); }

.boundary-grid, .api-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 18px; }
.boundary-card, .api-mini-card { padding: 18px; border: 1px solid var(--border); border-radius: 14px; background: var(--panel); }
.boundary-card h3 { margin: 0 0 8px; }
.boundary-card ul { margin-bottom: 0; padding-left: 20px; }
.boundary-do { border-top: 4px solid var(--mai); }
.boundary-dont { border-top: 4px solid #dc6b5d; }

.dev-timeline { position: relative; margin: 20px 0 0 19px; padding-left: 34px; }
.dev-timeline::before { content: ""; position: absolute; left: 0; top: 20px; bottom: 20px;
	width: 2px; background: linear-gradient(var(--accent), var(--mai)); }
.timeline-step { position: relative; display: grid; grid-template-columns: 1fr; margin: 0 0 14px;
	padding: 17px 18px; border: 1px solid var(--border); border-radius: 13px; background: var(--panel); }
.timeline-step h3 { margin: 0 0 4px; }
.timeline-step p { margin: 0; color: var(--muted); }
.timeline-step pre { margin: 12px 0 0; padding: 9px 11px; background: var(--bg); }
.step-number { position: absolute; left: -54px; top: 17px; display: grid; place-items: center; width: 38px; height: 38px;
	border: 3px solid var(--bg); border-radius: 50%; background: var(--accent); color: #fff; font-weight: 800; z-index: 1; }
.timeline-key { border-color: var(--mai); box-shadow: 0 8px 24px rgba(10, 138, 95, .1); }
.timeline-key .step-number { background: var(--mai); }

.api-mini-head { display: flex; align-items: center; gap: 8px; overflow-wrap: anywhere; }
.method { display: inline-block; min-width: 48px; padding: 3px 7px; border-radius: 6px; color: #fff;
	text-align: center; font-size: 11px; font-weight: 800; letter-spacing: .04em; }
.method.get { background: #2563eb; }
.method.post { background: var(--mai); }
.api-mini-card > p { color: var(--muted); }
.api-mini-card pre { margin-bottom: 0; background: var(--bg); }

.checklist { display: grid; gap: 9px; }
.checklist > div { display: flex; align-items: center; gap: 12px; padding: 12px 14px;
	border: 1px solid var(--border); border-radius: 10px; background: var(--panel); }
.checklist span { flex: 0 0 auto; color: var(--accent); font: 700 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.overview-warning { margin-top: 24px; padding: 18px; border-left: 4px solid #d97706; border-radius: 8px;
	background: #fff7e6; color: #7c4700; }
.overview-warning p { margin-bottom: 0; }
.overview-footer-link { margin-top: 28px; padding: 18px; text-align: center; border: 1px dashed var(--border); border-radius: 12px; }

.badge { font-size: 12px; padding: 2px 9px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); }
.badge.st-dev_done, .badge.st-deployed { background: #dcfce7; color: #15803d; }
.badge.st-plan_approved, .badge.st-deploy_approved { background: #fef3c7; color: #92400e; }
.badge.st-failed, .badge.st-deploy_failed { background: #fee2e2; color: #b91c1c; }

/* Slack-式帖子 */
.posts { display: flex; flex-direction: column; gap: 2px; margin: 16px 0; }
.post { display: flex; gap: 10px; padding: 6px 4px; }
.post.cont { padding-top: 1px; }
.post .avatar { width: 34px; height: 34px; border-radius: 8px; flex: 0 0 34px;
	background: var(--accent-soft); color: var(--accent); display: flex; align-items: center; justify-content: center; font-weight: 700; }
.post.cont .avatar { visibility: hidden; height: 0; }
.post .body { flex: 1; min-width: 0; }
.post .who { font-weight: 600; font-size: 14px; }
.post .who .ai { font-size: 11px; background: var(--mai); color: #fff; padding: 1px 6px; border-radius: 5px; margin-left: 6px; }
.post .when { color: var(--muted); font-size: 12px; margin-left: 8px; font-weight: 400; }
.post-meta { display: flex; flex-wrap: wrap; gap: 5px; margin: 3px 0 2px; }
.post-tag { padding: 1px 6px; border-radius: 999px; font: 600 11px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; }
.post-tag.kind { background: var(--accent-soft); color: var(--accent); }
.post-tag.result.pending { background: #fef3c7; color: #92400e; }
.post-tag.result.success { background: #dcfce7; color: #166534; }
.post-tag.result.failed, .post-tag.result.blocked { background: #fee2e2; color: #991b1b; }
.post .text { white-space: pre-wrap; word-break: break-word; margin-top: 1px; }
.post .text.markdown { white-space: normal; }
.markdown > :first-child { margin-top: 0; }
.markdown > :last-child { margin-bottom: 0; }
.markdown p, .markdown ul, .markdown ol, .markdown blockquote, .markdown pre { margin: 7px 0; }
.markdown pre { overflow: auto; padding: 11px; border-radius: 8px; background: #f3f4f6; }
.markdown code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
.markdown :not(pre) > code { padding: 1px 5px; border-radius: 5px; background: var(--accent-soft); }
.markdown blockquote { border-left: 3px solid var(--border); padding-left: 10px; color: var(--muted); }
.markdown table { border-collapse: collapse; max-width: 100%; display: block; overflow-x: auto; }
.markdown th, .markdown td { border: 1px solid var(--border); padding: 5px 8px; }
.markdown img { max-width: min(100%, 640px); max-height: 480px; border-radius: 8px; }
.post.sys { justify-content: center; }
.post.sys .body { text-align: center; color: var(--sys); font-size: 13px; flex: none; }

.composer { position: sticky; bottom: 0; background: var(--bg); padding: 12px 0; border-top: 1px solid var(--border); }
.composer-actions { display: flex; justify-content: flex-end; margin-top: 8px; }
.upload-row { display: flex; align-items: center; gap: 10px; margin-top: 8px; }
.file-btn { position: relative; overflow: hidden; padding: 5px 10px; font-size: 13px; }
.file-btn input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.attachment-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 7px; }
.attachment-chip { border: 1px solid var(--border); background: var(--panel); border-radius: 999px; padding: 3px 8px; font-size: 13px; }
.attachment-chip button { border: 0; background: transparent; color: var(--muted); cursor: pointer; }
.attachment.image img { width: 180px; height: 120px; object-fit: cover; border-radius: 8px; border: 1px solid var(--border); }
.attachment.file { border: 1px solid var(--border); border-radius: 7px; padding: 5px 9px; font-size: 13px; }

@media (prefers-color-scheme: dark) {
	.markdown pre { background: #0d1117; color: #c9d1d9; }
	.overview-rule { background: #123a30; color: #a7f3d0; }
	.overview-warning { background: #3b2a10; color: #fcd59a; }
	.node-git .relation-icon { background: #57606a; }
}

@media (max-width: 600px) {
	.nav { padding: 10px 12px; }
	.nav-right { gap: 9px; }
	.wrap { padding: 18px 12px 70px; }
	.inline-form { flex-direction: column; }
	.docs-entry-grid { grid-template-columns: 1fr; gap: 0; }
	.docs-callout { align-items: flex-start; flex-direction: column; gap: 4px; }
	.overview-hero { align-items: flex-start; flex-direction: column; padding: 20px; }
	.relation-map { grid-template-columns: 1fr; padding: 16px; }
	.relation-node { min-height: 130px; }
	.relation-lane { gap: 8px; padding: 2px 0; }
	.relation-lane div { flex-direction: column; gap: 2px; }
	.relation-lane b { transform: rotate(90deg); }
	.relation-deploy { grid-column: 1; flex-direction: column; text-align: center; }
	.boundary-grid, .api-pair { grid-template-columns: 1fr; }
	.dev-timeline { margin-left: 14px; padding-left: 26px; }
	.step-number { left: -45px; width: 34px; height: 34px; }
}