/* ============================================================
   Open Log Viewer · 项目主页
   设计方向:terminal / man-page 文档站,工程师气质,克制
   所有视觉均用代码绘制(mock),不用真实截图
   ============================================================ */

:root {
  --bg: #fbfaf6;
  --surface: #ffffff;
  --ink-1: #1a1814;
  --ink-2: #4a4742;
  --ink-3: #908a80;
  --border: #e8e4d9;
  --border-strong: #d4cebd;
  --accent: #1e3a8a;
  --accent-hover: #1e40af;
  --warm: #b45309;
  --danger: #b91c1c;
  --code-bg: #1a1814;
  --code-fg: #e7e4d9;
  --panel: #f3efe4;

  --font-display: ui-monospace, 'JetBrains Mono', 'IBM Plex Mono', 'SF Mono',
                    Menlo, Monaco, Consolas, 'Courier New', monospace;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
                'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  --font-mono: ui-monospace, 'JetBrains Mono', 'IBM Plex Mono', 'SF Mono',
                Menlo, Consolas, monospace;

  --wrap: 1180px;
  --gutter: 32px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: color .15s; }
a:hover { color: var(--accent-hover); text-decoration: underline; text-underline-offset: 3px; }

code {
  font-family: var(--font-mono);
  font-size: .9em;
  background: rgba(30, 58, 138, 0.07);
  color: var(--ink-1);
  padding: .1em .35em;
  border-radius: 2px;
}

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }

/* ============================================================
   Topbar
   ============================================================ */
.topbar {
  border-bottom: 1px solid var(--border);
  background: rgba(251, 250, 246, 0.85);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 56px; }

.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink-1); font-weight: 600; }
.brand:hover { color: var(--ink-1); text-decoration: none; }

.brand-mark { width: 10px; height: 10px; background: var(--ink-1); border-radius: 1px; display: inline-block; }
.brand-name { font-family: var(--font-mono); font-size: .95rem; letter-spacing: -.01em; }
.brand-ver {
  font-family: var(--font-mono); font-size: .72rem; color: var(--ink-3);
  padding: 2px 8px; border: 1px solid var(--border); border-radius: 2px; margin-left: 4px;
}

.topnav { display: flex; align-items: center; gap: 28px; }
.topnav a { color: var(--ink-2); font-size: .94rem; font-weight: 500; }
.topnav a:hover { color: var(--ink-1); text-decoration: none; }
.topnav a.ext {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 5px 12px; border: 1px solid var(--border-strong);
  border-radius: 2px; color: var(--ink-1);
}
.topnav a.ext:hover { border-color: var(--ink-1); }

/* ============================================================
   Hero
   ============================================================ */
.hero { padding: 96px 0; border-bottom: 1px solid var(--border); }

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 80px;
  align-items: center;
}

.eyebrow {
  font-family: var(--font-mono); font-size: .82rem; color: var(--ink-3);
  letter-spacing: .04em; display: inline-flex; align-items: center;
  gap: 8px; margin-bottom: 32px;
}
.eyebrow .dot {
  width: 6px; height: 6px; background: var(--ink-1); border-radius: 50%; display: inline-block;
}

.display {
  font-family: var(--font-mono); font-size: 2.5rem; font-weight: 500;
  letter-spacing: -.02em; line-height: 1.15; color: var(--ink-1); margin-bottom: 24px;
}

.lede {
  font-size: 1.0625rem; line-height: 1.7; color: var(--ink-2);
  max-width: 540px; margin-bottom: 32px;
}
.lede code { font-size: .9em; }

.install { margin-top: 40px; }

.install-prompt {
  display: flex; align-items: center; gap: 12px;
  background: var(--code-bg); color: var(--code-fg);
  font-family: var(--font-mono); font-size: .95rem;
  padding: 14px 18px; border-radius: 2px; cursor: pointer; user-select: text;
  transition: opacity .15s;
}
.install-prompt:hover { opacity: .92; }
.install-prompt.copied { background: #143024; color: #c8e6c9; }

.prompt-sigil { color: var(--warm); user-select: none; font-weight: 500; }

.install-prompt code {
  background: transparent; color: inherit; padding: 0;
  font-size: inherit; flex: 1; overflow-x: auto; white-space: nowrap;
}

.install-actions {
  display: flex; gap: 20px; margin-top: 18px;
  font-family: var(--font-mono); font-size: .85rem;
}
.install-actions a { color: var(--ink-2); letter-spacing: .01em; }
.install-actions a:hover { color: var(--accent); }

/* ----- Hero 主图 mock(替代原 home.png) ----- */
.hero-shot { margin: 0; }
.hero-shot figcaption {
  margin-top: 14px; font-size: .85rem; color: var(--ink-3); text-align: center;
}

.hero-mock {
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  background: #fafafa;
  font-family: var(--font-mono);
  font-size: .82rem;
  overflow: hidden;
  box-shadow:
    0 1px 0 rgba(0, 0, 0, 0.02),
    0 14px 40px -16px rgba(26, 24, 20, 0.18);
}

.hero-mock-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 10px 14px; background: var(--panel);
  border-bottom: 1px solid var(--border);
  font-size: .78rem; color: var(--ink-2);
}

.hero-mock-dot { width: 10px; height: 10px; border-radius: 50%; background: #d4cebd; display: inline-block; }
.hero-mock-dot:nth-child(1) { background: #c9b89e; }
.hero-mock-dot:nth-child(2) { background: #b8a78d; }
.hero-mock-dot:nth-child(3) { background: #a7977d; }

.hero-mock-title { margin-left: 12px; color: var(--ink-1); font-weight: 500; }
.hero-mock-meta { margin-left: auto; color: var(--ink-3); }

.hero-mock-search {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px;
  background: white;
  border-bottom: 1px solid var(--border);
}
.hero-mock-icon { color: var(--ink-3); font-size: 1rem; }
.hero-mock-query {
  background: rgba(30, 58, 138, 0.06);
  padding: 4px 10px;
  border-radius: 2px;
  color: var(--ink-1);
  font-weight: 500;
}
.hero-mock-flags { margin-left: auto; color: var(--ink-3); font-size: .72rem; font-family: var(--font-body); }

.hero-mock-timeline {
  display: flex;
  gap: 2px;
  align-items: flex-end;
  height: 56px;
  padding: 8px 14px;
  background: white;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.hero-mock-timeline span {
  flex: 1;
  background: var(--accent);
  opacity: .35;
  height: var(--h, 50%);
  min-height: 4px;
}
.hero-mock-cursor {
  position: absolute;
  left: 45%;
  top: 4px; bottom: 4px;
  width: 2px;
  background: var(--accent);
  flex: 0 !important;
  min-height: 0 !important;
  height: auto !important;
  opacity: 1;
}
.hero-mock-cursor::before {
  content: ''; position: absolute; top: -3px; left: -3px;
  width: 8px; height: 8px; background: var(--accent); border-radius: 50%;
}

.hero-mock-lines { padding: 10px 14px 14px; background: white; }
.hero-mock-line {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
  color: var(--ink-2);
  line-height: 1.7;
}
.hero-mock-error-line {
  background: rgba(30, 58, 138, 0.06);
  border-left: 3px solid var(--accent);
  padding-left: 8px;
  margin-left: -8px;
  margin-right: -8px;
  padding-right: 8px;
}
.hero-mock-time { color: var(--ink-3); margin-right: 10px; }
.hero-mock-level {
  display: inline-block; width: 50px; margin-right: 10px; font-weight: 600;
}
.hero-mock-info  { color: #1e40af; }
.hero-mock-warn  { color: var(--warm); }
.hero-mock-error { color: var(--danger); }
.hero-mock-line em {
  font-style: normal;
  background: rgba(180, 83, 9, .14);
  color: var(--ink-1);
  padding: 1px 4px;
  border-radius: 1px;
  border: 1px solid rgba(180, 83, 9, .22);
}

/* ============================================================
   Section head
   ============================================================ */
.section-head {
  display: flex; align-items: baseline; gap: 18px;
  padding-bottom: 28px; margin-bottom: 56px; border-bottom: 1px solid var(--border);
}
.section-num { font-family: var(--font-mono); font-size: .8rem; color: var(--ink-3); letter-spacing: .04em; }
.section-head h2 {
  font-family: var(--font-mono); font-size: 1.85rem; font-weight: 500;
  letter-spacing: -.015em; color: var(--ink-1); line-height: 1.2;
}
.lede-quiet { max-width: 760px; margin-bottom: 40px; }
.quiet { color: var(--ink-3); font-size: .94rem; }

/* ============================================================
   Why — 对比 mock
   ============================================================ */
.why { padding: 96px 0; border-bottom: 1px solid var(--border); }

.why-grid {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: center;
}

.why-text p { margin-bottom: 1em; }
.why-text p:last-child { margin-bottom: 0; }

.why-mock {
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  background: #fafafa;
  font-family: var(--font-mono);
  font-size: .85rem;
  overflow: hidden;
}

.why-mock-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 10px 14px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  color: var(--ink-2);
  font-size: .78rem;
}
.why-mock-dot { width: 9px; height: 9px; border-radius: 50%; background: #c9b89e; display: inline-block; }
.why-mock-dot:nth-child(1) { background: #c9b89e; }
.why-mock-dot:nth-child(2) { background: #b8a78d; }
.why-mock-dot:nth-child(3) { background: #a7977d; }
.why-mock-title { margin-left: 10px; color: var(--ink-1); font-weight: 500; }

.why-mock-issue { padding: 16px 18px; border-bottom: 1px dashed var(--border); }
.why-mock-solve { padding: 16px 18px; }

.why-mock-issue-line,
.why-mock-solve-line {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 8px;
  font-size: .92rem;
  line-height: 1.5;
  color: var(--ink-2);
}
.why-mock-issue-line:last-child,
.why-mock-solve-line:last-child { margin-bottom: 0; }

.why-mock-x {
  flex-shrink: 0;
  width: 20px; height: 20px;
  background: rgba(185, 28, 28, .12);
  color: var(--danger);
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: .82rem;
}
.why-mock-check {
  flex-shrink: 0;
  width: 20px; height: 20px;
  background: rgba(30, 58, 138, .12);
  color: var(--accent);
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: .82rem;
}

.why-mock-arrow {
  text-align: center;
  color: var(--ink-3);
  font-size: 1.2rem;
  padding: 6px 0;
  background: var(--panel);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* ============================================================
   Features
   ============================================================ */
.features { padding: 96px 0; border-bottom: 1px solid var(--border); }

.feat {
  display: grid; grid-template-columns: 1fr 1.1fr; gap: 72px;
  align-items: center; padding: 64px 0; border-top: 1px solid var(--border);
}
.feat:first-of-type { border-top: none; padding-top: 24px; }
.feat:last-of-type { padding-bottom: 24px; }

.feat-reverse { grid-template-columns: 1.1fr 1fr; }
.feat-reverse .feat-text { order: 2; }
.feat-reverse .feat-shot { order: 1; }

.feat-tag {
  font-family: var(--font-mono); font-size: .78rem; color: var(--ink-3);
  letter-spacing: .04em; margin-bottom: 14px;
}

.feat-text h3 {
  font-family: var(--font-mono); font-size: 1.45rem; font-weight: 500;
  letter-spacing: -.01em; color: var(--ink-1); line-height: 1.25; margin-bottom: 18px;
}

.feat-text p { margin-bottom: 1em; font-size: 1rem; line-height: 1.7; }

.feat-bullets { list-style: none; margin-top: 8px; padding-left: 0; }
.feat-bullets li {
  position: relative; padding-left: 20px; font-size: .95rem;
  margin-bottom: 6px; color: var(--ink-2);
}
.feat-bullets li::before { content: "—"; position: absolute; left: 0; color: var(--ink-3); }

.feat-shot {
  margin: 0; border: 1px solid var(--border-strong);
  border-radius: 4px; overflow: hidden; background: var(--surface);
}

/* ============================================================
   01 · I/O — 加载进度 + 虚拟滚动
   ============================================================ */
.fm-io { font-family: var(--font-mono); background: #fafafa; }

.fm-io-progress {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: .78rem;
}

.fm-io-progress-label {
  font-weight: 500;
  color: var(--ink-1);
}

.fm-io-bar {
  flex: 1;
  height: 8px;
  background: white;
  border: 1px solid var(--border-strong);
  border-radius: 1px;
  overflow: hidden;
}

.fm-io-bar-fill {
  width: 87%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #3b5fc7);
  background-size: 200% 100%;
  background-position: 0% 0%;
}

.fm-io-progress-pct {
  color: var(--accent);
  font-weight: 600;
  font-size: 1rem;
  min-width: 56px;
  text-align: right;
}
.fm-io-progress-pct small { font-size: .65em; opacity: .65; margin-left: 1px; }

.fm-io-progress-meta {
  color: var(--ink-3);
  font-family: var(--font-body);
  font-size: .78rem;
}

.fm-io-lines { padding: 14px 16px; }

.fm-io-line {
  display: flex;
  align-items: center;
  gap: 14px;
  white-space: nowrap;
  margin-bottom: 6px;
  font-size: .82rem;
  color: var(--ink-2);
  line-height: 1.7;
}

.fm-io-line-bookmarked {
  background: rgba(180, 83, 9, .08);
  border-left: 3px solid var(--warm);
  padding: 2px 10px 2px 12px;
  margin-left: -12px;
  margin-right: -12px;
  padding-right: 12px;
}

.fm-io-line-num { color: var(--ink-3); min-width: 78px; }
.fm-io-time { color: var(--ink-3); min-width: 70px; }
.fm-io-level { display: inline-block; width: 50px; font-weight: 600; }
.fm-io-info { color: #1e40af; }
.fm-io-warn { color: var(--warm); }
.fm-io-error { color: var(--danger); }
.fm-io-debug { color: var(--ink-3); }
.fm-io-msg { color: var(--ink-2); }

/* ============================================================
   02 · SEARCH — 多关键词命中
   ============================================================ */
.fm-search { font-family: var(--font-mono); background: #fafafa; display: flex; flex-direction: column; }

.fm-search-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.fm-search-icon { color: var(--ink-3); font-size: 1.05rem; }

.fm-search-text {
  flex: 1;
  background: white;
  border: 1px solid var(--border-strong);
  padding: 5px 12px;
  border-radius: 2px;
  color: var(--ink-1);
  font-size: .92rem;
}

.fm-search-flags {
  color: var(--ink-3);
  font-size: .78rem;
  font-family: var(--font-body);
}

.fm-search-results { padding: 14px 16px; flex: 1; }

.fm-r-line {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 6px;
  color: var(--ink-2);
  line-height: 1.7;
  font-size: .82rem;
}

.fm-r-line em {
  font-style: normal;
  background: rgba(180, 83, 9, .14);
  color: var(--ink-1);
  padding: 1px 4px;
  border-radius: 1px;
  border: 1px solid rgba(180, 83, 9, .22);
}

.fm-r-time { color: var(--ink-3); margin-right: 10px; }
.fm-r-level {
  display: inline-block; width: 50px; margin-right: 10px; font-weight: 600;
}
.fm-r-error { color: var(--danger); }
.fm-r-warn  { color: var(--warm); }
.fm-r-info  { color: #1e40af; }
.fm-r-debug { color: var(--ink-3); }

.fm-search-summary {
  padding: 10px 14px;
  background: var(--panel);
  border-top: 1px solid var(--border);
  color: var(--ink-3);
  font-size: .78rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-body);
}

/* ============================================================
   03 · NAVIGATE — 时间线
   ============================================================ */
.fm-timeline { font-family: var(--font-mono); background: #fafafa; }

.fm-timeline-head {
  display: flex; align-items: baseline; justify-content: space-between;
  padding: 14px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  font-size: .78rem;
  color: var(--ink-2);
}
.fm-timeline-head-label { font-weight: 500; color: var(--ink-1); }
.fm-timeline-head-meta { color: var(--ink-3); font-family: var(--font-body); }

.fm-timeline-labels {
  display: flex;
  justify-content: space-between;
  padding: 14px 18px 8px;
  color: var(--ink-3);
  font-size: .72rem;
  font-family: var(--font-body);
}

.fm-timeline-track {
  display: flex;
  gap: 3px;
  align-items: flex-end;
  height: 110px;
  padding: 0 18px 8px;
  position: relative;
}

.fm-timeline-track span {
  flex: 1;
  background: var(--accent);
  opacity: .35;
  height: var(--h, 50%);
  min-height: 4px;
  border-radius: 1px 1px 0 0;
  transition: opacity .2s;
}
.fm-timeline-track span:hover { opacity: .65; }

.fm-timeline-cursor {
  position: absolute;
  left: 45%;
  top: -8px;
  bottom: 0;
  width: 2px;
  background: var(--accent);
  flex: 0 !important;
  min-height: 0 !important;
  height: auto !important;
  opacity: 1;
  pointer-events: none;
  z-index: 2;
}
.fm-timeline-cursor::before {
  content: '';
  position: absolute;
  top: -3px; left: -4px;
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(30, 58, 138, .15);
}

.fm-timeline-current {
  margin: 8px 16px 16px;
  padding: 14px 18px;
  background: var(--panel);
  border-radius: 2px;
  display: flex;
  align-items: baseline;
  gap: 16px;
  font-size: .82rem;
}

.fm-timeline-current-label {
  font-family: var(--font-body);
  color: var(--ink-3);
  font-size: .78rem;
}

.fm-timeline-current-time {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -.01em;
}

.fm-timeline-current-line {
  margin-left: auto;
  font-family: var(--font-body);
  font-size: .82rem;
  color: var(--ink-2);
}

/* ============================================================
   04 · TEMPLATE — 排查模板动作序列
   ============================================================ */
.fm-template { background: #fafafa; }

.fm-template-header {
  padding: 16px 18px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.fm-template-name {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink-1);
}

.fm-template-meta {
  font-family: var(--font-body);
  font-size: .78rem;
  color: var(--ink-3);
}
.fm-template-meta code {
  background: rgba(30, 58, 138, 0.08);
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: .82em;
}

.fm-template-steps {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.fm-step {
  background: white;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 14px 16px;
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 18px;
  row-gap: 6px;
  align-items: center;
}

.fm-step-num {
  font-family: var(--font-mono);
  font-size: .85rem;
  color: var(--ink-3);
  font-weight: 500;
  grid-row: 1 / span 2;
}

.fm-step-type {
  font-weight: 500;
  color: var(--accent);
  font-size: .95rem;
  font-family: var(--font-mono);
}

.fm-step-body {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: .85rem;
  color: var(--ink-2);
  grid-column: 2;
}

.fm-step-label {
  color: var(--ink-3);
  font-family: var(--font-body);
  font-size: .78rem;
  min-width: 50px;
}

.fm-step-body code.fm-step-value {
  background: rgba(30, 58, 138, 0.06);
  padding: 2px 8px;
  border-radius: 2px;
  color: var(--ink-1);
  font-family: var(--font-mono);
  font-size: .88rem;
}

.fm-step-policy {
  grid-column: 2;
  font-family: var(--font-body);
  font-size: .8rem;
  color: var(--ink-3);
  margin-top: 2px;
}
.fm-step-policy em {
  font-style: normal;
  color: var(--accent);
  font-weight: 500;
}

.fm-step-arrow {
  text-align: center;
  color: var(--ink-3);
  font-size: 1rem;
  line-height: .5;
  padding: 4px 0;
}

/* ============================================================
   05 · ANNOTATE — 书签行 + 注释列表
   ============================================================ */
.fm-annotate {
  background: #fafafa;
  display: flex;
  flex-direction: column;
}

.fm-annotate-lines {
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: .82rem;
}

.fm-a-line {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 4px;
  padding: 6px 10px;
  border-radius: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--ink-2);
  line-height: 1.6;
}

.fm-a-line-bookmarked {
  background: rgba(180, 83, 9, .08);
  border-left: 3px solid var(--warm);
  padding-left: 12px;
  margin-left: -10px;
  margin-right: -10px;
  padding-right: 10px;
}

.fm-a-num { color: var(--ink-3); min-width: 78px; }
.fm-a-time { color: var(--ink-3); min-width: 70px; }
.fm-a-level { display: inline-block; width: 50px; font-weight: 600; }
.fm-a-info  { color: #1e40af; }
.fm-a-warn  { color: var(--warm); }
.fm-a-error { color: var(--danger); }
.fm-a-debug { color: var(--ink-3); }
.fm-a-msg {
  flex: 1;
  color: var(--ink-2);
  overflow: hidden;
  text-overflow: ellipsis;
}
.fm-a-tag {
  flex-shrink: 0;
  font-family: var(--font-body);
  font-size: .78rem;
  color: var(--warm);
  white-space: nowrap;
  padding: 2px 10px;
  background: rgba(180, 83, 9, .08);
  border-radius: 2px;
}

.fm-annotate-comments {
  padding: 14px 16px;
  background: var(--panel);
  border-top: 1px solid var(--border);
}

.fm-c-title {
  font-family: var(--font-body);
  font-size: .82rem;
  color: var(--ink-3);
  margin-bottom: 10px;
  font-weight: 500;
}

.fm-c-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: .85rem;
}
.fm-c-item:last-child { margin-bottom: 0; }

.fm-c-line {
  flex-shrink: 0;
  color: var(--accent);
  background: white;
  border: 1px solid var(--border-strong);
  padding: 2px 8px;
  border-radius: 2px;
  font-size: .76rem;
  min-width: 80px;
  text-align: center;
}

.fm-c-text {
  color: var(--ink-1);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ============================================================
   Formats
   ============================================================ */
.formats { padding: 96px 0; border-bottom: 1px solid var(--border); }

.format-table-wrap {
  border: 1px solid var(--border-strong); background: var(--surface);
  border-radius: 4px; overflow-x: auto; margin-bottom: 32px;
}

.format-table { width: 100%; border-collapse: collapse; font-size: .94rem; }
.format-table th, .format-table td { padding: 14px 24px; text-align: left; border-bottom: 1px solid var(--border); }

.format-table thead th {
  background: var(--panel); font-family: var(--font-mono); font-size: .78rem; font-weight: 500;
  letter-spacing: .04em; color: var(--ink-2); text-transform: uppercase;
}

.format-table tbody tr:last-child td { border-bottom: none; }
.format-table tbody tr:hover { background: rgba(30, 58, 138, 0.025); }
.format-table .col-flag { width: 110px; text-align: center; }
.format-table td.col-flag { text-align: center; }
.format-table .ok { color: var(--accent); font-weight: 500; font-family: var(--font-mono); font-size: .85rem; }

.note {
  padding: 18px 22px; background: var(--surface);
  border: 1px solid var(--border); border-left: 3px solid var(--accent);
  border-radius: 2px; font-size: .94rem; line-height: 1.65; color: var(--ink-2);
}
.note strong { color: var(--ink-1); font-weight: 600; }
.note code { background: rgba(30, 58, 138, 0.06); }

/* ============================================================
   Themes — 真实主题渲染
   ============================================================ */
.themes { padding: 96px 0; border-bottom: 1px solid var(--border); }

.theme-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px;
}

.theme {
  margin: 0; border: 1px solid var(--border-strong);
  background: var(--surface); border-radius: 4px; overflow: hidden;
  display: flex; flex-direction: column;
}

.theme-mock {
  aspect-ratio: 16 / 9;
  font-family: var(--font-mono);
  font-size: .72rem;
  line-height: 1.85;
  display: flex; flex-direction: column;
  overflow: hidden;
  position: relative;
}

.mock-bar {
  display: flex; align-items: center; gap: 6px;
  padding: 7px 12px; font-size: .68rem;
  flex-shrink: 0;
}

.mock-dot { width: 8px; height: 8px; border-radius: 50%; }
.mock-title { margin-left: 8px; }
.mock-meta { margin-left: auto; opacity: .55; }

.mock-search {
  padding: 6px 12px;
  border-bottom: 1px solid currentColor;
  border-bottom-color: rgba(127,127,127,.18);
  opacity: .8;
}
.mock-search::before { content: "⌕ "; opacity: .6; }

.mock-lines { padding: 6px 12px 12px; flex: 1; overflow: hidden; }
.mock-line {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mock-time { opacity: .5; margin-right: 8px; }
.mock-level {
  display: inline-block;
  width: 46px;
  margin-right: 8px;
  font-weight: 600;
}

.theme figcaption {
  padding: 18px 22px;
  border-top: 1px solid var(--border);
}
.theme-name {
  font-family: var(--font-mono); font-size: .98rem; font-weight: 500;
  color: var(--ink-1); margin-bottom: 4px;
}
.theme-desc { font-size: .85rem; color: var(--ink-3); }

/* —— 默认主题 —— */
.mock-default {
  background: #fafafa; color: #1a1a1a;
}
.mock-default .mock-bar { background: #ececec; border-bottom: 1px solid #e0e0e0; color: #4a4742; }
.mock-default .mock-dot:nth-child(1) { background: #c9b89e; }
.mock-default .mock-dot:nth-child(2) { background: #b8a78d; }
.mock-default .mock-dot:nth-child(3) { background: #a7977d; }
.mock-default .mock-level-info { color: #1e40af; }
.mock-default .mock-level-warn { color: var(--warm); }
.mock-default .mock-level-error { color: var(--danger); }
.mock-default .mock-level-debug { color: #6e7681; }

/* —— NEON.CYBER —— */
.mock-neon {
  background: #0a0e14;
  color: #00d9ff;
  background-image: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(0, 217, 255, 0.04) 3px,
    rgba(0, 217, 255, 0.04) 4px
  );
}
.mock-neon::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(0,0,0,.55) 100%);
  pointer-events: none;
}
.mock-neon .mock-bar {
  background: #14181f; border-bottom: 1px solid #ff00aa;
  color: #ff00aa;
}
.mock-neon .mock-dot:nth-child(1) { background: #ff0055; }
.mock-neon .mock-dot:nth-child(2) { background: #ffaa00; }
.mock-neon .mock-dot:nth-child(3) { background: #00d9ff; }
.mock-neon .mock-time { color: #ffaa00; }
.mock-neon .mock-level-info { color: #00d9ff; }
.mock-neon .mock-level-warn { color: #ff00aa; }
.mock-neon .mock-level-error { color: #ff0055; text-shadow: 0 0 8px rgba(255, 0, 85, .6); }
.mock-neon .mock-level-debug { color: #5a7080; }

/* —— AURORA.GLASS —— */
.mock-aurora {
  background: linear-gradient(135deg, #1a0b2e 0%, #2d1b4e 45%, #1b2838 100%);
  color: #e0e6ff;
  position: relative;
}
.mock-aurora::before {
  content: '';
  position: absolute;
  top: -20%; left: -10%; right: -10%; bottom: -20%;
  background:
    radial-gradient(circle at 30% 20%, rgba(180, 130, 255, .35), transparent 50%),
    radial-gradient(circle at 70% 80%, rgba(255, 200, 87, .25), transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(127, 230, 184, .18), transparent 60%);
  filter: blur(20px);
  pointer-events: none;
}
.mock-aurora .mock-bar {
  background: rgba(255,255,255,.06); backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(180, 130, 255, .4);
  color: rgba(224, 230, 255, .85);
}
.mock-aurora .mock-dot:nth-child(1) { background: #ff7eb6; }
.mock-aurora .mock-dot:nth-child(2) { background: #ffc857; }
.mock-aurora .mock-dot:nth-child(3) { background: #b482ff; }
.mock-aurora .mock-time { color: rgba(224, 230, 255, .55); }
.mock-aurora .mock-level-info { color: #b482ff; }
.mock-aurora .mock-level-warn { color: #ffc857; }
.mock-aurora .mock-level-error { color: #ff7eb6; }
.mock-aurora .mock-level-debug { color: rgba(224, 230, 255, .4); }
.mock-aurora .mock-search,
.mock-aurora .mock-lines { background: rgba(0,0,0,.18); backdrop-filter: blur(4px); }
.mock-aurora .mock-search { border-bottom: 1px solid rgba(180, 130, 255, .35); }

/* —— HOLO.PRISM —— */
.mock-holo {
  background: #1a1d24;
  color: #e6edf3;
  position: relative;
}
.mock-holo::before {
  content: '';
  position: absolute; inset: 0;
  border-radius: 0;
  padding: 1px;
  background: linear-gradient(135deg, #00d9ff, #ff00aa 50%, #ffaa00);
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}
.mock-holo .mock-bar {
  background: #15171c;
  border-bottom: 1px solid rgba(0, 217, 255, .35);
  color: rgba(230, 237, 243, .85);
  position: relative;
}
.mock-holo .mock-bar::after {
  content: '';
  position: absolute; bottom: -1px; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, #00d9ff, #ff00aa, #ffaa00, transparent);
  opacity: .7;
}
.mock-holo .mock-dot:nth-child(1) { background: #00d9ff; }
.mock-holo .mock-dot:nth-child(2) { background: #ff00aa; }
.mock-holo .mock-dot:nth-child(3) { background: #ffaa00; }
.mock-holo .mock-time { color: rgba(230, 237, 243, .55); }
.mock-holo .mock-level-info { color: #00d9ff; }
.mock-holo .mock-level-warn { color: #ffaa00; }
.mock-holo .mock-level-error { color: #ff00aa; }
.mock-holo .mock-level-debug { color: rgba(230, 237, 243, .4); }

/* ============================================================
   Commands
   ============================================================ */
.commands { padding: 96px 0; border-bottom: 1px solid var(--border); }

.cmd-list { border-top: 1px solid var(--border); }
.cmd-row {
  display: grid; grid-template-columns: 360px 1fr; gap: 32px;
  padding: 16px 0; border-bottom: 1px solid var(--border); align-items: center;
}
.cmd-row dt { margin: 0; }
.cmd-row dt code { background: transparent; color: var(--ink-1); font-size: .88rem; padding: 0; font-weight: 500; }
.cmd-row dd { margin: 0; font-size: .94rem; color: var(--ink-2); }

/* ============================================================
   Install
   ============================================================ */
.install { padding: 96px 0; border-bottom: 1px solid var(--border); }

.install-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
}
.install-block-wide { grid-column: 1 / -1; }

.install-label {
  font-family: var(--font-mono); font-size: .82rem; color: var(--accent);
  letter-spacing: .04em; margin-bottom: 12px;
}

.install-block p { font-size: .98rem; color: var(--ink-2); margin-bottom: 16px; }

.install-cmd {
  display: flex; align-items: center; gap: 12px;
  background: var(--code-bg); color: var(--code-fg);
  font-family: var(--font-mono); font-size: .92rem;
  padding: 14px 18px; border-radius: 2px; cursor: pointer;
}
.install-cmd code {
  background: transparent; color: inherit; padding: 0;
  flex: 1; overflow-x: auto; white-space: nowrap; font-size: inherit;
}

.install-cmd-block {
  display: block; white-space: pre;
  font-family: var(--font-mono); font-size: .88rem; line-height: 1.75;
}
.install-cmd-block code { white-space: pre; }

/* ============================================================
   Footer
   ============================================================ */
.foot { padding: 32px 0; background: var(--bg); }

.foot-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 32px; flex-wrap: wrap;
}

.foot-brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); color: var(--ink-2);
}
.foot-meta { color: var(--ink-3); font-size: .82rem; margin-left: 8px; }
.foot-links { display: flex; gap: 24px; }
.foot-links a { color: var(--ink-2); font-size: .9rem; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 980px) {
  .hero { padding: 64px 0; }
  .hero-grid { grid-template-columns: 1fr; gap: 56px; }
  .why-grid { grid-template-columns: 1fr; gap: 40px; }
  .feat, .feat-reverse { grid-template-columns: 1fr; gap: 32px; }
  .feat-reverse .feat-text { order: 1; }
  .feat-reverse .feat-shot { order: 2; }
  .install-grid { grid-template-columns: 1fr; }
  .cmd-row { grid-template-columns: 1fr; gap: 4px; }
  .theme-grid { grid-template-columns: 1fr; }
  .display { font-size: 2rem; }
  .section-head h2 { font-size: 1.5rem; }
  .fm-template-meta { font-size: .72rem; }
}

@media (max-width: 640px) {
  :root { --gutter: 20px; }
  .topnav { gap: 16px; }
  .topnav a:not(.ext) { display: none; }
  .features, .why, .formats, .themes, .commands, .install { padding: 64px 0; }
  .display { font-size: 1.65rem; }
  .fm-step { grid-template-columns: 1fr; }
  .fm-step-num { grid-row: auto; }
  .fm-step-body { grid-column: 1; }
  .fm-step-policy { grid-column: 1; }
}