/* ==========================================================================
   chrome-bookmarks-organize · 项目全景观览页样式
   主题：深色优先的「终端 + 保险柜」质感，Chrome 四色（蓝/红/黄/绿）作点缀
   支持深色 / 浅色双主题（默认跟随系统，手动切换写 localStorage）
   本文件由 AI 维护；与之配套：index.html / script.js / charts.js
   ========================================================================== */

/* ---------- 主题变量：浅色 ---------- */
:root {
  --font-ui: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, 'Courier New', monospace;

  --bg: #f6f8fc;
  --bg-2: #eef2f9;
  --panel: #ffffff;
  --panel-2: #f8fafd;
  --border: #e3e9f3;
  --border-2: #d3dceb;
  --text: #0d1626;
  --dim: #55677f;
  --dim-2: #7b8ba3;

  --blue: #4285f4;
  --red: #ea4335;
  --yellow: #f5a623;
  --green: #34a853;
  --purple: #8b5cf6;

  --nav-bg: rgba(255, 255, 255, .78);
  --shadow: 0 1px 2px rgba(15, 24, 44, .04), 0 10px 30px -18px rgba(15, 24, 44, .18);
  --shadow-h: 0 8px 18px rgba(15, 24, 44, .07), 0 26px 50px -22px rgba(66, 133, 244, .35);
  --aurora-o: .30;
  --grid-o: .045;

  --svg-box: #f3f6fc;
  --svg-line: #cdd8ea;
  --svg-blue-bg: #e8f0fe;  --svg-blue-fg: #1a56c4;
  --svg-amber-bg: #fef6e4; --svg-amber-fg: #a35c00;
  --svg-red-bg: #fdeceb;   --svg-red-fg: #c5221f;
  --svg-green-bg: #e6f5ea; --svg-green-fg: #1e7e34;
  --svg-gray-bg: #f1f4f9;  --svg-gray-fg: #41506b;

  --code-bg: #0f1626;
  --code-text: #dbe4f5;

  --radius: 16px;
  --radius-s: 11px;
}

/* ---------- 主题变量：深色（默认） ---------- */
html[data-theme="dark"] {
  --bg: #070a12;
  --bg-2: #0a0f1a;
  --panel: #0e1524;
  --panel-2: #131c2e;
  --border: #1c2740;
  --border-2: #27344f;
  --text: #e9eefb;
  --dim: #93a5c2;
  --dim-2: #6e809d;

  --blue: #5b9bff;
  --red: #ff6b5e;
  --yellow: #fbc531;
  --green: #4ade80;
  --purple: #a78bfa;

  --nav-bg: rgba(8, 12, 21, .72);
  --shadow: 0 1px 2px rgba(0, 0, 0, .35), 0 14px 34px -20px rgba(0, 0, 0, .7);
  --shadow-h: 0 10px 22px rgba(0, 0, 0, .45), 0 30px 60px -26px rgba(91, 155, 255, .45);
  --aurora-o: .55;
  --grid-o: .07;

  --svg-box: #101a2c;
  --svg-line: #2b3b5a;
  --svg-blue-bg: rgba(66, 133, 244, .16);  --svg-blue-fg: #8ab4ff;
  --svg-amber-bg: rgba(251, 188, 5, .15);  --svg-amber-fg: #fbd25c;
  --svg-red-bg: rgba(234, 67, 53, .17);    --svg-red-fg: #ff8a80;
  --svg-green-bg: rgba(52, 168, 83, .17);  --svg-green-fg: #6ee79b;
  --svg-gray-bg: rgba(147, 165, 194, .12); --svg-gray-fg: #b9c6db;

  --code-bg: #0b1120;
  --code-text: #dbe4f5;
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) {
    --bg: #070a12;
    --bg-2: #0a0f1a;
    --panel: #0e1524;
    --panel-2: #131c2e;
    --border: #1c2740;
    --border-2: #27344f;
    --text: #e9eefb;
    --dim: #93a5c2;
    --dim-2: #6e809d;

    --blue: #5b9bff;
    --red: #ff6b5e;
    --yellow: #fbc531;
    --green: #4ade80;
    --purple: #a78bfa;

    --nav-bg: rgba(8, 12, 21, .72);
    --shadow: 0 1px 2px rgba(0, 0, 0, .35), 0 14px 34px -20px rgba(0, 0, 0, .7);
    --shadow-h: 0 10px 22px rgba(0, 0, 0, .45), 0 30px 60px -26px rgba(91, 155, 255, .45);
    --aurora-o: .55;
    --grid-o: .07;

    --svg-box: #101a2c;
    --svg-line: #2b3b5a;
    --svg-blue-bg: rgba(66, 133, 244, .16);  --svg-blue-fg: #8ab4ff;
    --svg-amber-bg: rgba(251, 188, 5, .15);  --svg-amber-fg: #fbd25c;
    --svg-red-bg: rgba(234, 67, 53, .17);    --svg-red-fg: #ff8a80;
    --svg-green-bg: rgba(52, 168, 83, .17);  --svg-green-fg: #6ee79b;
    --svg-gray-bg: rgba(147, 165, 194, .12); --svg-gray-fg: #b9c6db;

    --code-bg: #0b1120;
    --code-text: #dbe4f5;
  }
}

/* ---------- 基础 ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-ui);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3, h4 { line-height: 1.25; margin: 0; letter-spacing: -.01em; }
p { margin: 0; }
a { color: var(--blue); text-decoration: none; }
strong { font-weight: 700; color: var(--text); }
code {
  font-family: var(--font-mono);
  font-size: .86em;
  background: color-mix(in srgb, var(--blue) 12%, transparent);
  color: color-mix(in srgb, var(--blue) 78%, var(--text));
  padding: .12em .42em;
  border-radius: 6px;
  word-break: break-word;
}
::selection { background: color-mix(in srgb, var(--blue) 35%, transparent); }

/* ---------- 滚动进度条 ---------- */
#progress {
  position: fixed; inset: 0 auto auto 0; height: 3px; width: 0; z-index: 300;
  background: linear-gradient(90deg, var(--blue), var(--green), var(--yellow), var(--red));
  box-shadow: 0 0 14px color-mix(in srgb, var(--blue) 60%, transparent);
  transition: width .08s linear;
}

/* ---------- 顶部导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  background: var(--nav-bg);
  -webkit-backdrop-filter: blur(14px) saturate(1.6);
  backdrop-filter: blur(14px) saturate(1.6);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, background .25s;
}
.nav.is-stuck { border-bottom-color: var(--border); }
.nav-inner {
  max-width: 1240px; margin: 0 auto; padding: 12px 24px;
  display: flex; align-items: center; gap: 18px;
}
.brand { display: flex; align-items: center; gap: 9px; color: var(--text); font-weight: 700; flex-shrink: 0; }
.brand-mark {
  display: grid; place-items: center; width: 32px; height: 32px; border-radius: 9px;
  background: linear-gradient(135deg, var(--blue), var(--green));
  color: #fff; box-shadow: 0 6px 16px -6px var(--blue);
}
.brand-text { font-size: 14.5px; letter-spacing: -.02em; }
.nav-links { display: flex; gap: 2px; margin-left: auto; flex-wrap: nowrap; overflow: hidden; }
.nav-links a {
  position: relative; padding: 7px 11px; border-radius: 9px; font-size: 13.5px; font-weight: 500;
  color: var(--dim); white-space: nowrap; transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--text); background: color-mix(in srgb, var(--text) 7%, transparent); }
.nav-links a.is-active { color: var(--text); }
.nav-links a.is-active::after {
  content: ''; position: absolute; left: 11px; right: 11px; bottom: 1px; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--blue), var(--green));
}
.nav-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.gh-btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 7px 12px; border-radius: 9px;
  font-size: 13px; font-weight: 600; color: var(--text);
  border: 1px solid var(--border); background: var(--panel);
  transition: transform .18s, box-shadow .18s, border-color .18s;
}
.gh-btn:hover { transform: translateY(-1px); border-color: var(--blue); box-shadow: 0 8px 20px -10px var(--blue); }
.icon-btn {
  display: grid; place-items: center; width: 36px; height: 36px; border-radius: 9px; cursor: pointer;
  background: var(--panel); border: 1px solid var(--border); color: var(--text);
  transition: transform .18s, border-color .18s, color .18s;
}
.icon-btn:hover { transform: translateY(-1px); border-color: var(--blue); color: var(--blue); }
.hamburger { display: none; }
html[data-theme="dark"] #iconMoon, html[data-theme="light"] #iconSun { display: none !important; }
html[data-theme="dark"] #iconSun, html[data-theme="light"] #iconMoon { display: block !important; }
@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) #iconMoon { display: none !important; }
  html:not([data-theme="light"]) #iconSun { display: block !important; }
}

/* ---------- HERO ---------- */
.hero { position: relative; padding: 132px 24px 0; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.aurora { position: absolute; border-radius: 50%; filter: blur(90px); opacity: var(--aurora-o); }
.a1 { width: 620px; height: 620px; top: -260px; left: -140px; background: var(--blue); }
.a2 { width: 540px; height: 540px; top: -180px; right: -100px; background: var(--green); }
.a3 { width: 460px; height: 460px; top: 220px; left: 42%; background: var(--purple); }
.grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(var(--text) 1px, transparent 1px), linear-gradient(90deg, var(--text) 1px, transparent 1px);
  background-size: 46px 46px;
  opacity: var(--grid-o);
  -webkit-mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 72%);
  mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 72%);
}
.hero-inner {
  position: relative; max-width: 1240px; margin: 0 auto;
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px; margin-bottom: 20px;
  font-size: 12.5px; font-weight: 600; letter-spacing: .04em; color: var(--dim);
  padding: 6px 14px 6px 10px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--panel);
}
.eyebrow-dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--green);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--green) 22%, transparent);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .45; } }
.hero-title { font-size: clamp(32px, 4.4vw, 56px); font-weight: 900; letter-spacing: -.035em; }
.grad {
  background: linear-gradient(100deg, var(--blue), var(--green) 45%, var(--yellow));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { margin-top: 18px; font-size: 16.5px; color: var(--dim); max-width: 620px; }
.hero-claim {
  margin-top: 16px; display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap;
  font-size: 14.5px; color: var(--dim);
}
.claim-tag {
  font-size: 11.5px; font-weight: 700; letter-spacing: .06em; padding: 4px 9px; border-radius: 6px;
  background: color-mix(in srgb, var(--green) 18%, transparent); color: var(--green);
}
.hero-cta { margin-top: 26px; display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 11px 20px; border-radius: 11px;
  font-size: 14.5px; font-weight: 600; border: 1px solid transparent; cursor: pointer;
  transition: transform .18s, box-shadow .18s, background .18s, border-color .18s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--blue), color-mix(in srgb, var(--blue) 60%, var(--green)));
  color: #fff; box-shadow: 0 12px 28px -12px var(--blue);
}
html[data-theme="dark"] .btn-primary, .btn-primary { color: #fff; }
.btn-ghost { background: var(--panel); border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--blue); box-shadow: 0 12px 28px -16px var(--blue); }
.btn-text { background: none; color: var(--dim); padding-left: 4px; }
.btn-text:hover { color: var(--blue); transform: none; }
.hero-pills { margin-top: 24px; display: flex; gap: 8px; flex-wrap: wrap; }
.pill {
  font-size: 12.5px; font-weight: 600; padding: 5px 12px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--panel); color: var(--dim);
}
.p-blue { color: var(--blue); border-color: color-mix(in srgb, var(--blue) 35%, transparent); }
.p-green { color: var(--green); border-color: color-mix(in srgb, var(--green) 35%, transparent); }
.p-yellow { color: var(--yellow); border-color: color-mix(in srgb, var(--yellow) 40%, transparent); }
.p-red { color: var(--red); border-color: color-mix(in srgb, var(--red) 35%, transparent); }

/* ---------- 书签整理演示卡 ---------- */
.demo {
  background: var(--panel); border: 1px solid var(--border); border-radius: 16px; overflow: hidden;
  box-shadow: var(--shadow-h);
}
.demo-bar {
  display: flex; align-items: center; gap: 7px; padding: 10px 14px;
  background: var(--panel-2); border-bottom: 1px solid var(--border);
}
.dot { width: 11px; height: 11px; border-radius: 50%; }
.d1 { background: #ff5f57; } .d2 { background: #febc2e; } .d3 { background: #28c840; }
.demo-url {
  margin-left: 10px; flex: 1; font-family: var(--font-mono); font-size: 11.5px; color: var(--dim);
  background: color-mix(in srgb, var(--text) 6%, transparent);
  padding: 4px 10px; border-radius: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.demo-switch { display: flex; gap: 3px; padding: 3px; border-radius: 8px; background: color-mix(in srgb, var(--text) 7%, transparent); }
.ds-btn {
  border: 0; background: none; cursor: pointer; font-family: var(--font-ui);
  font-size: 11.5px; font-weight: 600; color: var(--dim); padding: 4px 9px; border-radius: 6px;
  transition: background .2s, color .2s;
}
.ds-btn.is-active { background: var(--panel); color: var(--text); box-shadow: var(--shadow); }
.demo-body { position: relative; padding: 12px 14px; min-height: 296px; }
.demo-view { display: none; }
.demo-view.is-active { display: block; animation: fadeUp .45s ease both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.bm-row {
  display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 8px;
  font-size: 13px; color: var(--dim); transition: background .18s;
}
.bm-row:hover { background: color-mix(in srgb, var(--text) 5%, transparent); }
.bm-row.head { font-weight: 700; color: var(--text); font-size: 13.5px; }
.bm-row.more { color: var(--dim-2); font-style: italic; }
.bm-row.ok { color: var(--green); font-weight: 600; font-size: 12.5px; margin-top: 6px; }
.bm-ico { width: 18px; text-align: center; }
.dup {
  font-style: normal; font-size: 10.5px; font-weight: 700; padding: 1px 6px; border-radius: 5px;
  background: color-mix(in srgb, var(--red) 18%, transparent); color: var(--red);
}
.cnt {
  font-style: normal; font-size: 10.5px; font-weight: 700; padding: 1px 6px; border-radius: 5px;
  background: color-mix(in srgb, var(--green) 18%, transparent); color: var(--green);
}
.demo-foot {
  display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap;
  padding: 10px 14px; border-top: 1px solid var(--border); background: var(--panel-2);
  font-size: 11.5px; color: var(--dim-2);
}
.demo-stat { font-family: var(--font-mono); color: var(--dim); }

/* ---------- 指标条 ---------- */
.stats {
  position: relative; max-width: 1240px; margin: 56px auto 0;
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 1px;
  background: var(--border); border: 1px solid var(--border);
  border-radius: 16px; overflow: hidden;
}
.stat { background: var(--panel); padding: 20px 14px; text-align: center; }
.stat-num {
  font-size: clamp(24px, 2.6vw, 34px); font-weight: 900; letter-spacing: -.03em;
  background: linear-gradient(135deg, var(--blue), var(--green));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-variant-numeric: tabular-nums;
}
.stat-label { margin-top: 4px; font-size: 12px; color: var(--dim); }

/* ---------- 主体容器 ---------- */
.wrap { max-width: 1240px; margin: 0 auto; padding: 0 24px 80px; }
.sec { padding: 84px 0 12px; scroll-margin-top: 84px; }
.sec-head { display: flex; gap: 16px; align-items: flex-start; margin-bottom: 26px; }
.sec-no {
  flex-shrink: 0; font-family: var(--font-mono); font-size: 13px; font-weight: 700;
  color: var(--blue); padding: 6px 10px; border-radius: 9px;
  background: color-mix(in srgb, var(--blue) 13%, transparent);
  border: 1px solid color-mix(in srgb, var(--blue) 30%, transparent);
}
.sec-title { font-size: clamp(22px, 2.6vw, 30px); font-weight: 800; letter-spacing: -.03em; }
.sec-desc { margin-top: 8px; color: var(--dim); font-size: 15px; max-width: 860px; }

/* ---------- 卡片 ---------- */
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow);
  transition: transform .22s, box-shadow .22s, border-color .22s;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-h); }
.card-flat { padding: 18px; }
.card-flat:hover { transform: none; box-shadow: var(--shadow); }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.card-title { font-size: 16.5px; font-weight: 700; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

/* ---------- 01 对比 ---------- */
.vs { display: grid; grid-template-columns: 1fr auto 1fr; gap: 18px; align-items: stretch; }
.vs-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.vs-card::before { content: ''; position: absolute; inset: 0 auto 0 0; width: 3px; }
.vs-card.bad::before { background: var(--red); }
.vs-card.good::before { background: var(--green); }
.vs-tag {
  display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .06em;
  padding: 3px 9px; border-radius: 6px; margin-bottom: 12px;
}
.vs-card.bad .vs-tag { background: color-mix(in srgb, var(--red) 16%, transparent); color: var(--red); }
.vs-card.good .vs-tag { background: color-mix(in srgb, var(--green) 16%, transparent); color: var(--green); }
.vs-card h3 { font-size: 17px; font-weight: 700; }
.vs-card ul { margin: 14px 0 0; padding-left: 18px; color: var(--dim); font-size: 14px; }
.vs-card li { margin-bottom: 6px; }
.vs-result {
  margin-top: 16px; padding-top: 12px; border-top: 1px dashed var(--border);
  font-size: 13.5px; font-weight: 700;
}
.vs-card.bad .vs-result { color: var(--red); }
.vs-card.good .vs-result { color: var(--green); }
.vs-arrow { display: grid; place-items: center; color: var(--dim-2); }

.idea {
  margin-top: 18px; display: flex; gap: 16px; padding: 20px 22px;
  background: linear-gradient(120deg, color-mix(in srgb, var(--blue) 9%, var(--panel)), var(--panel));
  border: 1px solid var(--border); border-radius: var(--radius);
}
.idea-icon {
  flex-shrink: 0; width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center;
  background: color-mix(in srgb, var(--blue) 14%, transparent); color: var(--blue);
}
.idea h3 { font-size: 16px; font-weight: 700; }
.idea p { margin-top: 8px; color: var(--dim); font-size: 14.5px; }

/* ---------- 02 阶梯卡 ---------- */
.ladder { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step-card {
  position: relative; background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow);
  transition: transform .22s, box-shadow .22s, border-color .22s;
}
.step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-h); }
.step-card.lv3 { border-color: color-mix(in srgb, var(--green) 45%, transparent); }
.step-card.is-main { overflow: hidden; }
.step-glow {
  position: absolute; inset: -40% -20% auto -20%; height: 160px; pointer-events: none;
  background: radial-gradient(ellipse at 50% 0%, color-mix(in srgb, var(--green) 30%, transparent), transparent 70%);
}
.lv-badge {
  position: absolute; top: -11px; right: 16px; font-size: 11px; font-weight: 800; letter-spacing: .08em;
  padding: 3px 10px; border-radius: 999px; background: var(--panel); border: 1px solid var(--border); color: var(--dim);
}
.lv-badge.hot { background: var(--green); border-color: var(--green); color: #fff; box-shadow: 0 6px 16px -8px var(--green); }
.step-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.step-file { font-family: var(--font-mono); font-size: 14px; font-weight: 700; color: var(--text); }
.step-tag { font-size: 11px; font-weight: 700; letter-spacing: .02em; padding: 3px 10px; border-radius: 999px; }
.t-gray { background: color-mix(in srgb, var(--dim) 16%, transparent); color: var(--dim); }
.t-blue { background: var(--svg-blue-bg); color: var(--svg-blue-fg); }
.t-green { background: var(--svg-green-bg); color: var(--svg-green-fg); }
.step-card h3 { font-size: 16px; font-weight: 700; position: relative; }
.step-card p { margin-top: 10px; font-size: 14px; color: var(--dim); position: relative; }
.step-use {
  margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--border);
  font-size: 12.5px; color: var(--dim-2); position: relative;
}
.rule-bar {
  margin-top: 18px; padding: 14px 18px; border-radius: var(--radius-s); font-size: 14.5px; color: var(--dim);
  background: color-mix(in srgb, var(--red) 8%, var(--panel));
  border: 1px solid color-mix(in srgb, var(--red) 28%, transparent);
}
.rule-k {
  display: inline-block; margin-right: 10px; font-size: 11.5px; font-weight: 800; letter-spacing: .06em;
  color: var(--red); background: color-mix(in srgb, var(--red) 15%, transparent); padding: 3px 9px; border-radius: 6px;
}

/* ---------- 03 架构 SVG ---------- */
.arch-svg, .flow-svg { display: block; width: 100%; height: auto; }
.node { cursor: help; transition: opacity .2s; }
.node:hover { opacity: .82; }
.node:hover rect, .node:hover circle { filter: drop-shadow(0 0 10px color-mix(in srgb, var(--blue) 55%, transparent)); }
.lyr { fill: var(--dim-2); font-size: 11.5px; font-weight: 800; letter-spacing: .1em; }
.bx { fill: var(--svg-box); stroke: var(--svg-line); stroke-width: 1.4; transition: fill .25s, stroke .25s; }
.bx-blue { fill: var(--svg-blue-bg); stroke: var(--blue); }
.bx-amber { fill: var(--svg-amber-bg); stroke: var(--yellow); }
.bx-red { fill: var(--svg-red-bg); stroke: var(--red); }
.bx-green { fill: var(--svg-green-bg); stroke: var(--green); }
.bx-gray { fill: var(--svg-gray-bg); stroke: var(--svg-line); }
.bx-solid { fill: var(--svg-box); stroke: var(--svg-line); stroke-dasharray: 4 3; }
.bt { fill: var(--text); font-size: 15px; font-weight: 700; text-anchor: middle; }
.bt.sm { font-size: 13.5px; }
.bs { fill: var(--dim); font-size: 11px; text-anchor: middle; }
.bs.warn { fill: var(--red); font-weight: 600; }
.mini { fill: var(--dim-2); font-size: 10.5px; }
.mini.red { fill: var(--red); }
.ln { stroke: var(--dim-2); stroke-width: 1.6; fill: none; }
.ln-red { stroke: var(--red); stroke-width: 1.8; fill: none; }
.dash { stroke-dasharray: 5 4; }
.mk { fill: var(--dim-2); }
.mk-red { fill: var(--red); }
.loop { fill: none; stroke: var(--yellow); stroke-width: 1.4; stroke-dasharray: 6 5; }
.loop-t { fill: var(--yellow); font-size: 11px; font-weight: 700; letter-spacing: .04em; }
.loop-t.center { text-anchor: middle; }
.loop-arw { stroke: var(--yellow); }

.legend { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 14px; font-size: 12.5px; color: var(--dim); }
.legend span { display: inline-flex; align-items: center; gap: 7px; }
.lg { width: 12px; height: 12px; border-radius: 4px; border: 1.5px solid; }
.lg-blue { background: var(--svg-blue-bg); border-color: var(--blue); }
.lg-amber { background: var(--svg-amber-bg); border-color: var(--yellow); }
.lg-red { background: var(--svg-red-bg); border-color: var(--red); }
.lg-gray { background: var(--svg-gray-bg); border-color: var(--svg-line); }
.lg-solid { background: var(--svg-box); border-color: var(--svg-line); border-style: dashed; }

/* ---------- 03 附：仓库随附示意图折叠区 ---------- */
.figs {
  margin-top: 16px; border: 1px solid var(--border); border-radius: var(--radius-s);
  background: var(--panel-2); overflow: hidden;
}
.figs > summary {
  cursor: pointer; list-style: none; padding: 12px 16px; font-size: 13.5px; font-weight: 600; color: var(--dim);
  display: flex; align-items: center; gap: 8px; transition: color .2s, background .2s;
}
.figs > summary::-webkit-details-marker { display: none; }
.figs > summary::before {
  content: '▸'; color: var(--blue); font-size: 12px; transition: transform .2s;
}
.figs[open] > summary::before { transform: rotate(90deg); }
.figs > summary:hover { color: var(--text); background: color-mix(in srgb, var(--blue) 5%, transparent); }
.fig-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; padding: 4px 16px 18px; }
.fig-grid figure { margin: 0; }
.fig-grid img {
  display: block; width: 100%; height: auto;
  border: 1px solid var(--border); border-radius: 12px; background: transparent;
}
.fig-grid figcaption { margin-top: 8px; font-size: 12.5px; color: var(--dim-2); line-height: 1.6; }
.fig-grid figcaption b { font-family: var(--font-mono); color: var(--dim); }

/* ---------- 04 流程 SVG ---------- */
.track { stroke: var(--border-2); stroke-width: 2; }
.loop-band { fill: color-mix(in srgb, var(--yellow) 8%, transparent); stroke: var(--yellow); stroke-width: 1.3; stroke-dasharray: 6 5; }
.st { stroke-width: 2; transition: r .2s; }
.st-blue { fill: var(--svg-blue-bg); stroke: var(--blue); }
.st-amber { fill: var(--svg-amber-bg); stroke: var(--yellow); }
.st-red { fill: var(--svg-red-bg); stroke: var(--red); }
.st-gray { fill: var(--svg-gray-bg); stroke: var(--svg-line); }
.st-no { fill: var(--text); font-size: 14px; font-weight: 800; text-anchor: middle; }
.st-no.sm-no { font-size: 12px; }
.st-t { fill: var(--text); font-size: 12.5px; font-weight: 700; text-anchor: middle; }
.st-s { fill: var(--dim); font-size: 10.5px; text-anchor: middle; font-family: var(--font-mono); }
.flow-loop { stroke: var(--yellow); stroke-width: 1.6; fill: none; }
.flow-back { stroke: var(--red); stroke-width: 1.8; fill: none; stroke-dasharray: 6 5; }
.flow-note {
  margin-top: 14px; padding: 13px 18px; border-radius: var(--radius-s); font-size: 14.5px; color: var(--dim);
  background: color-mix(in srgb, var(--yellow) 9%, var(--panel));
  border: 1px solid color-mix(in srgb, var(--yellow) 30%, transparent);
}
.fn-k {
  display: inline-block; margin-right: 10px; font-size: 11.5px; font-weight: 800; letter-spacing: .06em;
  color: var(--yellow); background: color-mix(in srgb, var(--yellow) 16%, transparent); padding: 3px 9px; border-radius: 6px;
}

/* ---------- 05 安全护栏 ---------- */
.guard-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.guard {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow);
  transition: transform .22s, box-shadow .22s, border-color .22s;
}
.guard:hover { transform: translateY(-4px); box-shadow: var(--shadow-h); border-color: color-mix(in srgb, var(--blue) 40%, transparent); }
.g-ico {
  display: grid; place-items: center; width: 38px; height: 38px; border-radius: 11px; margin-bottom: 12px;
}
.gi-red { background: color-mix(in srgb, var(--red) 15%, transparent); color: var(--red); }
.gi-blue { background: var(--svg-blue-bg); color: var(--blue); }
.gi-green { background: var(--svg-green-bg); color: var(--green); }
.gi-amber { background: var(--svg-amber-bg); color: var(--yellow); }
.gi-purple { background: color-mix(in srgb, var(--purple) 15%, transparent); color: var(--purple); }
.guard h3 { font-size: 15px; font-weight: 700; }
.guard p { margin-top: 8px; font-size: 13.5px; color: var(--dim); }

.callout {
  margin-top: 18px; display: flex; gap: 12px; padding: 16px 18px; border-radius: var(--radius-s);
  font-size: 14px; color: var(--dim);
}
.callout.warn {
  background: color-mix(in srgb, var(--yellow) 9%, var(--panel));
  border: 1px solid color-mix(in srgb, var(--yellow) 32%, transparent);
}
.callout.info {
  background: color-mix(in srgb, var(--blue) 8%, var(--panel));
  border: 1px solid color-mix(in srgb, var(--blue) 28%, transparent);
}
.co-ico { flex-shrink: 0; font-size: 18px; line-height: 1.4; }

/* ---------- 06 命令表 ---------- */
.table-wrap { overflow-x: auto; }
.cmd-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 720px; }
.cmd-table th {
  text-align: left; padding: 10px 14px; font-size: 11.5px; font-weight: 800; letter-spacing: .06em;
  color: var(--dim-2); border-bottom: 1px solid var(--border-2); white-space: nowrap;
}
.cmd-table td { padding: 13px 14px; border-bottom: 1px solid var(--border); vertical-align: top; color: var(--dim); }
.cmd-table tbody tr { transition: background .18s; }
.cmd-table tbody tr:hover { background: color-mix(in srgb, var(--blue) 5%, transparent); }
.cmd-table tbody tr:last-child td { border-bottom: 0; }
.cmd-table td:first-child { white-space: nowrap; }
.cmd-table code { background: none; padding: 0; color: var(--text); font-weight: 700; font-size: 14px; }
.row-hot { background: color-mix(in srgb, var(--red) 6%, transparent); }
.tag-read, .tag-write {
  display: inline-block; font-size: 11px; font-weight: 800; letter-spacing: .04em;
  padding: 3px 8px; border-radius: 6px; white-space: nowrap;
}
.tag-read { background: var(--svg-green-bg); color: var(--svg-green-fg); }
.tag-write { background: var(--svg-red-bg); color: var(--svg-red-fg); }

/* ---------- 07 Tab + 代码块 ---------- */
.tabs { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.tab-bar { display: flex; gap: 4px; padding: 10px; background: var(--panel-2); border-bottom: 1px solid var(--border); overflow-x: auto; }
.tab-btn {
  display: inline-flex; align-items: center; gap: 7px; border: 0; cursor: pointer; white-space: nowrap;
  background: none; font-family: var(--font-ui); font-size: 14px; font-weight: 600; color: var(--dim);
  padding: 9px 15px; border-radius: 10px; transition: background .2s, color .2s;
}
.tab-btn em {
  font-style: normal; font-size: 11px; font-weight: 700; letter-spacing: .02em;
  padding: 3px 10px; border-radius: 999px;
  background: color-mix(in srgb, var(--dim) 14%, transparent); color: var(--dim);
}
.tab-btn em.em-hot { background: var(--green); color: #fff; box-shadow: 0 6px 16px -8px var(--green); }
.tab-btn:hover { color: var(--text); }
.tab-btn.is-active { background: var(--panel); color: var(--text); box-shadow: var(--shadow); }
.tab-panel { display: none; padding: 20px; }
.tab-panel.is-active { display: block; animation: fadeUp .3s ease both; }
.panel-lead { font-size: 14.5px; color: var(--dim); margin-bottom: 14px; }
.code { border: 1px solid var(--border-2); border-radius: 12px; overflow: hidden; background: var(--code-bg); }
.code-head {
  display: flex; align-items: center; justify-content: space-between; padding: 8px 12px;
  background: color-mix(in srgb, #000 25%, var(--code-bg)); border-bottom: 1px solid rgba(255, 255, 255, .07);
}
.code-title { font-family: var(--font-mono); font-size: 11.5px; color: #7f8ca6; letter-spacing: .04em; }
.copy-btn {
  border: 1px solid rgba(255, 255, 255, .16); background: rgba(255, 255, 255, .06); color: #b9c6db;
  font-family: var(--font-ui); font-size: 11.5px; font-weight: 600; padding: 4px 10px; border-radius: 7px; cursor: pointer;
  transition: background .2s, color .2s, border-color .2s;
}
.copy-btn:hover { background: rgba(255, 255, 255, .13); color: #fff; border-color: rgba(255, 255, 255, .3); }
.copy-btn.is-done { background: var(--green); border-color: var(--green); color: #04160a; }
.code pre { margin: 0; padding: 16px 18px; overflow-x: auto; }
.code code {
  background: none; padding: 0; color: var(--code-text);
  font-family: var(--font-mono); font-size: 12.8px; line-height: 1.85; color: #d7e0f2;
}
.c-c { color: #6b7c99; font-style: italic; }
.c-s { color: #7ee2a8; }
.mini-note { margin-top: 12px; font-size: 12.8px; color: var(--dim-2); }

.steps3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 18px; }
.s3 { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-s); padding: 18px; }
.s3-no {
  display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 8px; margin-bottom: 10px;
  font-size: 13px; font-weight: 800; background: var(--svg-blue-bg); color: var(--svg-blue-fg);
}
.s3 h4 { font-size: 14.5px; font-weight: 700; }
.s3 p { margin-top: 6px; font-size: 13.2px; color: var(--dim); }

/* ---------- 08 质量 ---------- */
.seg { display: inline-flex; gap: 3px; padding: 3px; border-radius: 9px; background: color-mix(in srgb, var(--text) 7%, transparent); }
.seg-btn {
  border: 0; background: none; cursor: pointer; font-family: var(--font-ui); font-size: 12px; font-weight: 600;
  color: var(--dim); padding: 4px 10px; border-radius: 6px; transition: background .2s, color .2s;
}
.seg-btn.is-active { background: var(--panel); color: var(--text); box-shadow: var(--shadow); }
.q-view { display: none; }
.q-view.is-active { display: block; animation: fadeUp .3s ease both; }
.chart-box { position: relative; height: 240px; }
.mini-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.mini-table th {
  text-align: left; padding: 8px 10px; font-size: 11px; font-weight: 800; letter-spacing: .05em;
  color: var(--dim-2); border-bottom: 1px solid var(--border-2);
}
.mini-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); color: var(--dim); }
.mini-table tr:last-child td { border-bottom: 0; }
.check-list { margin: 14px 0 0; padding: 0; list-style: none; }
.check-list li {
  position: relative; padding: 5px 0 5px 24px; font-size: 14px; color: var(--dim);
}
.check-list li::before {
  content: ''; position: absolute; left: 2px; top: 12px; width: 6px; height: 10px;
  border-right: 2px solid var(--green); border-bottom: 2px solid var(--green);
  transform: rotate(40deg);
}
.ci-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 18px; }
.ci-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-s); padding: 18px; }
.ci-k { font-size: 11.5px; font-weight: 800; letter-spacing: .08em; color: var(--dim-2); }
.ci-v {
  margin: 6px 0 8px; font-size: 22px; font-weight: 900; letter-spacing: -.02em;
  background: linear-gradient(135deg, var(--blue), var(--green));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.ci-card p { font-size: 13.2px; color: var(--dim); }

/* ---------- 09 目录树 ---------- */
.tree-bar { display: flex; gap: 8px; margin-bottom: 12px; }
.mini-btn {
  border: 1px solid var(--border); background: var(--panel-2); color: var(--dim);
  font-family: var(--font-ui); font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 8px; cursor: pointer;
  transition: color .2s, border-color .2s;
}
.mini-btn:hover { color: var(--blue); border-color: var(--blue); }
.tree, .tree ul { list-style: none; margin: 0; padding: 0; }
.tree ul { margin-left: 18px; border-left: 1px dashed var(--border-2); padding-left: 12px; }
.t-row {
  display: block; padding: 4px 8px; border-radius: 7px; font-size: 13.5px; color: var(--dim);
  font-family: var(--font-ui); transition: background .18s;
}
.t-row:hover { background: color-mix(in srgb, var(--blue) 6%, transparent); }
.t-dir > .t-row { cursor: pointer; color: var(--text); font-weight: 600; }
.t-caret { display: inline-block; width: 14px; color: var(--blue); font-size: 11px; transition: transform .2s; }
.t-dir:not(.open) > .t-row .t-caret { transform: rotate(-90deg); }
.t-dir > ul { display: none; }
.t-dir.open > ul { display: block; }
.tree b { font-family: var(--font-mono); font-size: 13px; color: var(--text); font-weight: 700; }
.t-muted .t-row, .t-muted b { opacity: .55; text-decoration: line-through; }

/* ---------- 10 已知边界 ---------- */
.limit-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.limit {
  display: flex; gap: 13px; padding: 18px; background: var(--panel);
  border: 1px solid var(--border); border-radius: var(--radius-s);
  transition: transform .22s, border-color .22s;
}
.limit:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--yellow) 40%, transparent); }
.l-ico { font-size: 20px; line-height: 1.2; }
.limit h4 { font-size: 14.5px; font-weight: 700; }
.limit p { margin-top: 5px; font-size: 13.2px; color: var(--dim); }

/* ---------- 11 文档索引 ---------- */
.doc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.doc-card {
  display: block; position: relative; padding: 20px; background: var(--panel);
  border: 1px solid var(--border); border-radius: var(--radius); color: var(--text);
  transition: transform .22s, box-shadow .22s, border-color .22s;
}
.doc-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-h); border-color: color-mix(in srgb, var(--blue) 45%, transparent); }
.doc-k {
  display: inline-block; font-family: var(--font-mono); font-size: 10.5px; font-weight: 700; letter-spacing: .1em;
  padding: 3px 8px; border-radius: 6px; margin-bottom: 10px;
  background: var(--svg-blue-bg); color: var(--svg-blue-fg);
}
.doc-card h4 { font-size: 15.5px; font-weight: 700; }
.doc-card p { margin-top: 7px; font-size: 13.2px; color: var(--dim); }
.doc-go { display: inline-block; margin-top: 12px; font-size: 12.5px; font-weight: 700; color: var(--blue); }

/* ---------- 页脚 ---------- */
.foot { border-top: 1px solid var(--border); background: var(--panel-2); }
.foot-inner {
  max-width: 1240px; margin: 0 auto; padding: 30px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
}
.foot-brand { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 14.5px; }
.foot-sub { margin-top: 4px; font-size: 12.5px; color: var(--dim-2); }
.foot-r { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; font-size: 13.5px; }
.foot-r a { color: var(--dim); }
.foot-r a:hover { color: var(--blue); }
.foot-lic { font-size: 12px; color: var(--dim-2); padding: 3px 9px; border: 1px solid var(--border); border-radius: 6px; }

/* ---------- 回到顶部 / tooltip ---------- */
.to-top {
  position: fixed; right: 24px; bottom: 24px; z-index: 150; width: 44px; height: 44px; border-radius: 12px;
  display: grid; place-items: center; cursor: pointer; color: #fff; border: 0;
  background: linear-gradient(135deg, var(--blue), var(--green));
  box-shadow: 0 12px 28px -10px var(--blue);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity .25s, transform .25s, visibility .25s;
}
.to-top.is-show { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { transform: translateY(-3px); }
.tip-box {
  position: fixed; z-index: 400; max-width: 300px; padding: 10px 13px; border-radius: 10px;
  background: var(--panel); border: 1px solid var(--border-2); color: var(--text);
  font-size: 12.8px; line-height: 1.55; box-shadow: 0 16px 40px -12px rgba(0, 0, 0, .45);
  opacity: 0; visibility: hidden; transform: translateY(6px); pointer-events: none;
  transition: opacity .16s, transform .16s, visibility .16s;
}
.tip-box.is-show { opacity: 1; visibility: visible; transform: none; }

/* ---------- 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-in { opacity: 1; transform: none; }
/* 入场动画结束后，hover 上浮仍需生效（提高特异性，覆盖 .reveal.is-in 的 transform:none） */
.card.is-in:hover, .guard.is-in:hover, .step-card.is-in:hover, .limit.is-in:hover,
.doc-card.is-in:hover, .ci-card.is-in:hover, .s3.is-in:hover {
  transform: translateY(-4px);
  transition: transform .22s, box-shadow .22s, border-color .22s;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .nav-links { display: none; }
  .hamburger { display: grid; }
  .nav-links.is-open {
    display: flex; flex-direction: column; position: absolute; top: 60px; left: 12px; right: 12px;
    background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 10px;
    box-shadow: var(--shadow-h); z-index: 210;
  }
  .nav-links.is-open a { padding: 10px 12px; font-size: 14px; }
  .nav-links.is-open a.is-active::after { display: none; }
  .nav-links.is-open a.is-active { background: color-mix(in srgb, var(--blue) 12%, transparent); color: var(--blue); }
  .hero-inner { grid-template-columns: 1fr; gap: 34px; }
  .stats { grid-template-columns: repeat(3, 1fr); }
  .ladder, .guard-grid, .limit-grid, .doc-grid, .ci-row, .steps3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .hero { padding-top: 108px; }
  .nav-inner { padding: 10px 16px; }
  .brand-text { display: none; }
  .wrap { padding: 0 16px 60px; }
  .vs, .grid-2, .fig-grid { grid-template-columns: 1fr; }
  .vs-arrow { transform: rotate(90deg); justify-self: center; }
  .ladder, .guard-grid, .limit-grid, .doc-grid, .ci-row, .steps3 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .sec { padding: 60px 0 8px; }
  .idea { flex-direction: column; gap: 12px; }
  .foot-inner { flex-direction: column; align-items: flex-start; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}