/* ===== 朗松 WorkBuddy 教程站 · 青绿 VI ===== */
:root {
  --primary: #006a6e;
  --primary-dark: #004f52;
  --primary-light: #0a8a8f;
  --primary-soft: #e6f3f3;
  --accent: #00a3a8;
  --accent-glow: rgba(0, 163, 168, 0.35);
  --bg: #f4f7f7;
  --card: #ffffff;
  --text: #1a2a2a;
  --muted: #6b7c7c;
  --border: #dce6e6;
  --success: #0f8a5f;
  --warning: #c47b0a;
  --danger: #c53d3d;
  --radius: 12px;
  --radius-sm: 6px;
  --shadow: 0 4px 20px rgba(0, 80, 82, 0.06);
  --shadow-hover: 0 14px 34px rgba(0, 106, 110, 0.16);
  --header-h: 64px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: "Cascadia Code", Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--primary-light); }
button { font: inherit; cursor: pointer; }
img { max-width: 100%; }
::selection { background: var(--primary-soft); color: var(--primary-dark); }

/* ===== 阅读进度条 ===== */
.read-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  z-index: 100; transition: width .1s linear;
  box-shadow: 0 0 8px var(--accent-glow);
}

/* ===== 顶栏 ===== */
.topbar {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.topbar-brand { display: flex; align-items: center; gap: 12px; }
.topbar-brand img { height: 26px; width: auto; display: block; }
.topbar-brand .divider { width: 1px; height: 22px; background: var(--border); }
.topbar-brand .site-name {
  font-size: 14px; font-weight: 600; color: var(--primary-dark); letter-spacing: .5px; line-height: 1.25;
}
.topbar-brand .site-name span { display: block; font-size: 11px; font-weight: 400; color: var(--muted); }
.topbar-nav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.topbar-nav a {
  padding: 7px 12px; border-radius: 8px; font-size: 13px; color: var(--muted);
  transition: all .15s ease; white-space: nowrap;
}
.topbar-nav a:hover { color: var(--primary-dark); background: var(--primary-soft); }
.topbar-nav a.active { color: #fff; background: var(--primary); font-weight: 600; }
.cmdk-hint {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 12px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--card); color: var(--muted); font-size: 12px; cursor: pointer;
  transition: all .15s ease;
}
.cmdk-hint:hover { border-color: var(--primary-light); color: var(--primary-dark); }
.cmdk-hint kbd {
  font-family: var(--mono); font-size: 11px; padding: 1px 5px;
  background: var(--bg); border: 1px solid var(--border); border-radius: 4px;
}
.nav-toggle { display: none; background: none; border: none; font-size: 20px; color: var(--primary); }

/* ===== Hero ===== */
.hero {
  position: relative; overflow: hidden;
  background: radial-gradient(1200px 500px at 20% -10%, #0a8a8f 0%, transparent 55%),
              radial-gradient(900px 420px at 85% 10%, #00a3a8 0%, transparent 50%),
              linear-gradient(160deg, #003a3d 0%, #004f52 45%, #006a6e 100%);
  color: #eaf6f6;
  padding: 90px 24px 110px;
}
#hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .55; }
.hero-inner { position: relative; z-index: 2; max-width: 1080px; margin: 0 auto; text-align: center; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: 999px; font-size: 13px;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.22);
  backdrop-filter: blur(6px); color: #bfe8e8; margin-bottom: 22px;
}
.hero-eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: #4fe3c1; box-shadow: 0 0 10px #4fe3c1; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }
.hero h1 {
  font-size: clamp(30px, 5.2vw, 56px); line-height: 1.2; margin: 0 0 18px; font-weight: 700; color: #fff;
  text-shadow: 0 4px 30px rgba(0,0,0,.25);
}
.hero h1 .grad {
  background: linear-gradient(90deg, #7ef0dd, #b2f5ea, #7ef0dd);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { font-size: clamp(14px, 2vw, 18px); color: #bfe0e0; max-width: 720px; margin: 0 auto 34px; }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 22px; border-radius: 10px; border: 1px solid transparent;
  background: var(--primary); color: #fff; font-size: 14px; font-weight: 600;
  transition: all .18s ease;
}
.btn:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-hover); }
.btn.glass {
  background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.3); color: #fff;
  backdrop-filter: blur(8px);
}
.btn.glass:hover { background: rgba(255,255,255,.22); color: #fff; }
.btn.ghost { background: transparent; border-color: var(--border); color: var(--primary); }
.btn.ghost:hover { background: var(--primary-soft); box-shadow: none; }
.btn.secondary { background: var(--primary-soft); color: var(--primary-dark); }
.btn.sm { padding: 6px 12px; font-size: 12.5px; border-radius: 8px; }

/* 打字机任务演示 */
.hero-demo {
  position: relative; z-index: 2; max-width: 760px; margin: 46px auto 0;
  background: rgba(10, 40, 42, .55); border: 1px solid rgba(126, 240, 221, .25);
  border-radius: 14px; backdrop-filter: blur(10px);
  padding: 16px 20px; text-align: left;
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
}
.hero-demo .demo-head { display: flex; gap: 6px; margin-bottom: 12px; }
.hero-demo .demo-head i { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.25); }
.hero-demo .demo-head i:nth-child(1) { background: #ff5f57; }
.hero-demo .demo-head i:nth-child(2) { background: #febc2e; }
.hero-demo .demo-head i:nth-child(3) { background: #28c840; }
.hero-demo .demo-line {
  font-family: var(--mono); font-size: clamp(12.5px, 1.6vw, 15px); color: #d7f5ef;
  min-height: 1.7em; white-space: pre-wrap; word-break: break-all;
}
.hero-demo .cursor { display: inline-block; width: 9px; height: 1.1em; background: #7ef0dd; vertical-align: text-bottom; animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ===== 页面容器 ===== */
.page { max-width: 1120px; margin: 0 auto; padding: 40px 24px 90px; }
.section { margin-top: 64px; }
.section-head { margin-bottom: 26px; }
.section-tag {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 2px;
  color: var(--accent); text-transform: uppercase; margin-bottom: 8px;
}
.section-head h2 { margin: 0 0 10px; font-size: clamp(22px, 3vw, 30px); color: var(--primary-dark); }
.section-head p { margin: 0; color: var(--muted); max-width: 720px; }

/* ===== 滚动渐入 ===== */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .1s; }
.reveal[data-delay="2"] { transition-delay: .2s; }
.reveal[data-delay="3"] { transition-delay: .3s; }

/* ===== 部门卡片 ===== */
.dept-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 18px; }
.dept-card {
  position: relative; display: block; padding: 26px 22px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); transition: transform .2s ease, box-shadow .2s ease;
  transform-style: preserve-3d; overflow: hidden;
}
.dept-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.dept-card:hover { box-shadow: var(--shadow-hover); color: var(--text); }
.dept-card:hover::before { transform: scaleX(1); }
.dept-card .ico {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
  background: var(--primary-soft); color: var(--primary); margin-bottom: 16px;
}
.dept-card .ico svg { width: 26px; height: 26px; }
.dept-card h3 { margin: 0 0 6px; font-size: 17px; color: var(--primary-dark); }
.dept-card p { margin: 0 0 14px; font-size: 13px; color: var(--muted); }
.dept-card .go { font-size: 13px; font-weight: 600; color: var(--accent); }

/* ===== 3 步流程 ===== */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; counter-reset: step; }
.step-card {
  position: relative; padding: 28px 24px; background: var(--card);
  border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
}
.step-card .num {
  counter-increment: step; width: 40px; height: 40px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 700; color: #fff; margin-bottom: 14px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 6px 16px var(--accent-glow);
}
.step-card .num::before { content: counter(step, decimal-leading-zero); }
.step-card h3 { margin: 0 0 8px; font-size: 16px; color: var(--primary-dark); }
.step-card p { margin: 0; font-size: 13.5px; color: var(--muted); }

/* ===== 对比块 ===== */
.compare { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px; }
.compare-card { padding: 26px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--card); box-shadow: var(--shadow); }
.compare-card.good { border-color: rgba(15, 138, 95, .35); background: linear-gradient(180deg, #f2faf6, #fff); }
.compare-card.bad { border-color: rgba(197, 61, 61, .25); background: linear-gradient(180deg, #fdf5f5, #fff); }
.compare-card h3 { display: flex; align-items: center; gap: 8px; margin: 0 0 12px; font-size: 16px; }
.compare-card.good h3 { color: var(--success); }
.compare-card.bad h3 { color: var(--danger); }
.compare-card ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: 14px; }
.compare-card li { margin-bottom: 8px; }

/* ===== 提示词卡片 ===== */
.prompt-toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 20px; }
.tag-chip {
  padding: 6px 14px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--card); color: var(--muted); font-size: 12.5px; transition: all .15s ease;
}
.tag-chip:hover { border-color: var(--primary-light); color: var(--primary-dark); }
.tag-chip.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.prompt-search {
  flex: 1; min-width: 180px; display: flex; align-items: center; gap: 8px;
  border: 1px solid var(--border); border-radius: 10px; padding: 7px 12px; background: var(--card);
}
.prompt-search input { border: none; outline: none; flex: 1; font: inherit; font-size: 13.5px; background: transparent; color: var(--text); }
.prompt-grid { display: grid; gap: 16px; }
.prompt-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden; transition: box-shadow .2s ease;
}
.prompt-card:hover { box-shadow: var(--shadow-hover); }
.prompt-card .pc-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding: 18px 20px 0; }
.prompt-card h3 { margin: 0; font-size: 16px; color: var(--primary-dark); }
.prompt-card .pc-ctx { margin: 4px 0 0; font-size: 12.5px; color: var(--muted); }
.prompt-card .pc-tags { display: flex; gap: 6px; flex-shrink: 0; }
.pc-tag { font-size: 11px; padding: 2px 9px; border-radius: 999px; background: var(--primary-soft); color: var(--primary-dark); font-weight: 600; }
.prompt-body {
  margin: 14px 20px 0; padding: 14px 16px; border-radius: var(--radius-sm);
  background: #f0f7f7; border: 1px dashed #bcd9d9;
  font-size: 13.5px; color: #23403f; white-space: pre-wrap; word-break: break-word;
  max-height: 150px; overflow: hidden; position: relative; transition: max-height .35s ease;
}
.prompt-card.open .prompt-body { max-height: 1200px; }
.prompt-body:not(.expanded-mask)::after {
  content: ""; position: absolute; inset: auto 0 0 0; height: 44px;
  background: linear-gradient(180deg, transparent, #f0f7f7);
}
.prompt-card.open .prompt-body::after { display: none; }
.prompt-body .hl { background: #d5f0ea; color: var(--primary-dark); font-weight: 600; padding: 0 3px; border-radius: 3px; border-bottom: 1.5px dashed var(--accent); }
.pc-actions { display: flex; gap: 10px; padding: 14px 20px 18px; }
.copy-btn { position: relative; }
.copy-btn.copied { background: var(--success); }
.no-results { text-align: center; padding: 40px; color: var(--muted); display: none; }

/* ===== 模拟对话窗 ===== */
.chat-demo {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
}
.chat-head {
  display: flex; align-items: center; gap: 10px; padding: 12px 18px;
  background: linear-gradient(90deg, var(--primary-dark), var(--primary)); color: #fff;
}
.chat-head .wb-badge {
  width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center;
  background: rgba(255,255,255,.18); font-weight: 700; font-size: 13px;
}
.chat-head .meta { line-height: 1.25; }
.chat-head .meta strong { display: block; font-size: 14px; }
.chat-head .meta small { font-size: 11px; opacity: .75; }
.chat-head .replay { margin-left: auto; background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.3); color: #fff; padding: 5px 12px; border-radius: 8px; font-size: 12px; }
.chat-head .replay:hover { background: rgba(255,255,255,.28); }
.chat-body { padding: 18px; min-height: 120px; }
.chat-msg { display: flex; gap: 10px; margin-bottom: 14px; opacity: 0; transform: translateY(10px); transition: all .4s ease; }
.chat-msg.show { opacity: 1; transform: none; }
.chat-msg .avatar {
  flex-shrink: 0; width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center;
  font-size: 12px; font-weight: 700; color: #fff;
}
.chat-msg.user .avatar { background: var(--muted); }
.chat-msg.ai .avatar { background: linear-gradient(135deg, var(--primary), var(--accent)); }
.chat-msg .bubble {
  padding: 10px 14px; border-radius: 12px; font-size: 13.5px; max-width: 85%;
}
.chat-msg.user { flex-direction: row-reverse; }
.chat-msg.user .bubble { background: var(--primary-soft); color: var(--primary-dark); border-top-right-radius: 4px; }
.chat-msg.ai .bubble { background: #f0f4f4; color: var(--text); border-top-left-radius: 4px; }
.chat-msg .bubble .tool-line { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 12.5px; margin: 4px 0; }
.chat-msg .bubble .tool-line .spin { width: 12px; height: 12px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
.chat-msg .bubble .tool-line.done .spin { border-color: var(--success); animation: none; }
.chat-msg .bubble .tool-line.done .spin::after { content: "✓"; color: var(--success); font-size: 10px; display: grid; place-items: center; height: 100%; }
@keyframes spin { to { transform: rotate(360deg); } }
.chat-typing { display: inline-flex; gap: 4px; padding: 4px 0; }
.chat-typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--muted); animation: tbounce 1.2s infinite; }
.chat-typing i:nth-child(2) { animation-delay: .15s; }
.chat-typing i:nth-child(3) { animation-delay: .3s; }
@keyframes tbounce { 0%,60%,100% { transform: none; opacity: .4; } 30% { transform: translateY(-5px); opacity: 1; } }

/* ===== 结果面板（仿 WorkBuddy 结果区）===== */
.result-panel {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
}
.rp-tabs { display: flex; gap: 2px; padding: 8px 12px 0; background: #f0f4f4; border-bottom: 1px solid var(--border); }
.rp-tab {
  padding: 9px 16px; font-size: 13px; border: none; background: transparent; color: var(--muted);
  border-radius: 8px 8px 0 0; position: relative; top: 1px; transition: all .15s ease;
}
.rp-tab:hover { color: var(--primary-dark); }
.rp-tab.active { background: var(--card); color: var(--primary-dark); font-weight: 600; border: 1px solid var(--border); border-bottom-color: var(--card); }
.rp-body { min-height: 200px; }
.rp-pane { display: none; padding: 0; }
.rp-pane.active { display: block; }
.rp-pane iframe { width: 100%; border: none; display: block; min-height: 520px; }
.rp-files { padding: 14px 18px; }
.rp-file {
  display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 8px;
  font-size: 13px; color: var(--text); transition: background .15s ease;
}
.rp-file:hover { background: var(--primary-soft); }
.rp-file .fico { width: 28px; height: 28px; border-radius: 6px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); font-size: 10px; font-weight: 700; flex-shrink: 0; }
.rp-file small { color: var(--muted); margin-left: auto; font-size: 11px; }

/* ===== 媒体占位 ===== */
.media-slot {
  border: 2px dashed #bcd9d9; border-radius: var(--radius); background: #f7fbfb;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 10px; padding: 44px 20px; text-align: center; color: var(--muted); min-height: 180px;
}
.media-slot .ms-ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); }
.media-slot .ms-title { font-weight: 600; color: var(--primary-dark); font-size: 14px; }
.media-slot .ms-file { font-family: var(--mono); font-size: 12px; background: var(--card); border: 1px solid var(--border); padding: 3px 10px; border-radius: 6px; }
.media-slot .ms-desc { font-size: 12.5px; max-width: 420px; }
.media-slot img, .media-slot video { max-width: 100%; border-radius: var(--radius-sm); display: block; }
.media-slot img { cursor: zoom-in; }
.media-slot.loaded { border-style: solid; border-color: var(--border); padding: 12px; background: var(--card); }
.media-slot.loaded .ms-ico, .media-slot.loaded .ms-title, .media-slot.loaded .ms-file, .media-slot.loaded .ms-desc { display: none; }
.media-slot .ms-miss { font-family: var(--mono); font-size: 13px; color: var(--muted); }

/* ===== 步骤引导（basics）===== */
.guide { display: grid; gap: 0; }
.guide-step { display: grid; grid-template-columns: 46px 1fr; gap: 18px; position: relative; padding-bottom: 30px; }
.guide-step::before {
  content: ""; position: absolute; left: 22px; top: 46px; bottom: 0; width: 2px;
  background: var(--border);
}
.guide-step:last-child::before { display: none; }
.guide-step .g-num {
  width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
  font-weight: 700; color: #fff; background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 6px 14px var(--accent-glow); z-index: 1;
}
.guide-step .g-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 22px; box-shadow: var(--shadow); }
.guide-step h3 { margin: 0 0 8px; font-size: 16px; color: var(--primary-dark); }
.guide-step p { margin: 0 0 10px; font-size: 14px; color: var(--muted); }
.guide-step p:last-child { margin-bottom: 0; }
.guide-step .tip {
  margin-top: 12px; padding: 10px 14px; border-radius: var(--radius-sm); font-size: 13px;
  background: #fff8ec; border: 1px solid #f0dcb8; color: #8a5a10;
}

/* ===== FAQ ===== */
.faq-item { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; box-shadow: var(--shadow); }
.faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 17px 20px; background: none; border: none; text-align: left;
  font-size: 15px; font-weight: 600; color: var(--primary-dark);
}
.faq-q .chev { transition: transform .25s ease; color: var(--muted); flex-shrink: 0; }
.faq-item.open .faq-q .chev { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-item.open .faq-a { max-height: 500px; }
.faq-a .inner { padding: 0 20px 18px; color: var(--muted); font-size: 14px; }

/* ===== 技能卡片 ===== */
.skill-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 16px; }
.skill-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); transition: box-shadow .2s ease, transform .2s ease; }
.skill-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.skill-card h3 { margin: 0 0 6px; font-size: 15px; color: var(--primary-dark); }
.skill-card p { margin: 0; font-size: 13px; color: var(--muted); }
.skill-card .sc-tag { display: inline-block; font-size: 11px; font-weight: 700; color: var(--accent); margin-bottom: 8px; letter-spacing: 1px; }

/* ===== 命令面板 ===== */
.cmdk-overlay {
  position: fixed; inset: 0; z-index: 200; display: none;
  background: rgba(10, 30, 31, .45); backdrop-filter: blur(4px);
  padding: 12vh 20px 20px;
}
.cmdk-overlay.show { display: block; }
.cmdk-panel {
  max-width: 560px; margin: 0 auto; background: var(--card); border-radius: 14px;
  box-shadow: 0 30px 80px rgba(0,0,0,.3); overflow: hidden; border: 1px solid var(--border);
}
.cmdk-input { display: flex; align-items: center; gap: 10px; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.cmdk-input input { flex: 1; border: none; outline: none; font: inherit; font-size: 15px; background: transparent; color: var(--text); }
.cmdk-list { max-height: 320px; overflow: auto; padding: 8px; }
.cmdk-item {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 8px;
  font-size: 14px; color: var(--text); cursor: pointer;
}
.cmdk-item small { color: var(--muted); margin-left: auto; font-size: 11.5px; }
.cmdk-item.sel { background: var(--primary-soft); color: var(--primary-dark); }

/* ===== Toast ===== */
.toast {
  position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--primary-dark); color: #fff; padding: 11px 22px; border-radius: 10px;
  font-size: 13.5px; opacity: 0; pointer-events: none; transition: all .3s ease; z-index: 300;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
}
.toast.show { opacity: 1; transform: translateX(-50%); }

/* ===== 锚点导航 ===== */
.anchor-nav {
  position: fixed; right: 18px; top: 50%; transform: translateY(-50%);
  display: flex; flex-direction: column; gap: 8px; z-index: 40;
}
.anchor-nav a {
  width: 10px; height: 10px; border-radius: 50%; background: var(--border);
  transition: all .2s ease; position: relative;
}
.anchor-nav a:hover, .anchor-nav a.active { background: var(--accent); transform: scale(1.3); }
.anchor-nav a .tip-label {
  position: absolute; right: 20px; top: 50%; transform: translateY(-50%);
  white-space: nowrap; font-size: 12px; background: var(--primary-dark); color: #fff;
  padding: 4px 10px; border-radius: 6px; opacity: 0; pointer-events: none; transition: opacity .2s ease;
}
.anchor-nav a:hover .tip-label { opacity: 1; }

/* ===== 部门页 Banner ===== */
.dept-banner {
  border-radius: 16px; padding: 44px 40px; color: #fff; position: relative; overflow: hidden;
  background: radial-gradient(700px 300px at 80% -20%, rgba(126,240,221,.25), transparent 60%),
              linear-gradient(135deg, var(--primary-dark), var(--primary));
  margin-bottom: 10px;
}
.dept-banner .db-ico {
  width: 56px; height: 56px; border-radius: 14px; display: grid; place-items: center;
  background: rgba(255,255,255,.15); margin-bottom: 18px; backdrop-filter: blur(4px);
}
.dept-banner .db-ico svg { width: 30px; height: 30px; }
.dept-banner h1 { margin: 0 0 10px; font-size: clamp(24px, 3.5vw, 34px); }
.dept-banner p { margin: 0; max-width: 640px; color: #cde9e9; font-size: 15px; }
.pain-chips { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 18px; }
.pain-chip { font-size: 12.5px; padding: 5px 13px; border-radius: 999px; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.25); }

/* ===== 页脚 ===== */
.footer {
  border-top: 1px solid var(--border); background: var(--card);
  padding: 30px 24px; text-align: center; color: var(--muted); font-size: 13px;
}
.footer .f-links { display: flex; gap: 18px; justify-content: center; margin-bottom: 10px; flex-wrap: wrap; }

/* ===== 界面导览页（guide.html）===== */
.feat-row {
  display: grid; grid-template-columns: 1.15fr 1fr; gap: 36px; align-items: center;
  margin-bottom: 56px;
}
.feat-row.flip { grid-template-columns: 1fr 1.15fr; }
.feat-row.flip .feat-shot { order: 2; }
.feat-shot {
  position: relative; border-radius: 14px; overflow: hidden; cursor: zoom-in;
  border: 1px solid var(--border); box-shadow: 0 10px 34px rgba(0, 80, 82, .12);
  transition: transform .25s ease, box-shadow .25s ease; background: #eef3f3;
}
.feat-shot:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.feat-shot img { display: block; width: 100%; }
.feat-shot .zoom-hint {
  position: absolute; right: 10px; bottom: 10px; padding: 3px 11px; border-radius: 7px;
  background: rgba(0, 60, 62, .68); color: #fff; font-size: 12px;
  opacity: 0; transition: opacity .2s ease;
}
.feat-shot:hover .zoom-hint { opacity: 1; }
.feat-info .f-num {
  display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff;
  font-weight: 700; font-size: 15px; margin-bottom: 12px; box-shadow: 0 6px 14px var(--accent-glow);
}
.feat-info h3 { margin: 0 0 8px; font-size: 21px; color: var(--primary-dark); }
.feat-info .f-loc {
  display: inline-block; font-size: 12px; font-weight: 600; color: var(--accent);
  background: var(--primary-soft); padding: 2px 10px; border-radius: 999px; margin-bottom: 10px;
}
.feat-info p { margin: 0 0 10px; font-size: 14.5px; color: #33494a; }
.feat-info ul { margin: 0 0 12px; padding-left: 18px; color: var(--muted); font-size: 13.5px; }
.feat-info li { margin-bottom: 6px; }
.feat-info .ui-tip {
  padding: 9px 13px; border-radius: var(--radius-sm); font-size: 13px;
  background: #fff8ec; border: 1px solid #f0dcb8; color: #8a5a10;
}
.feat-info .ui-tip kbd {
  font-family: var(--mono); font-size: 11px; padding: 0 5px;
  background: #fff; border: 1px solid #ecd9b0; border-radius: 3px;
}
.feat-shot-placeholder {
  border: 2px dashed #bcd9d9; border-radius: 14px; background: #f7fbfb;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px; min-height: 220px; color: var(--muted); text-align: center; padding: 20px;
}
.feat-shot-placeholder .ms-file { font-family: var(--mono); font-size: 12px; background: var(--card); border: 1px solid var(--border); padding: 3px 10px; border-radius: 6px; }
@media (max-width: 900px) {
  .feat-row, .feat-row.flip { grid-template-columns: 1fr; gap: 18px; }
  .feat-row.flip .feat-shot { order: 0; }
}

/* ===== 图片灯箱 ===== */
.lightbox {
  position: fixed; inset: 0; z-index: 400; display: none; align-items: center; justify-content: center;
  background: rgba(8, 26, 27, .82); backdrop-filter: blur(6px); cursor: zoom-out; padding: 4vh 4vw;
}
.lightbox.show { display: flex; }
.lightbox img {
  max-width: 100%; max-height: 100%; border-radius: 10px;
  box-shadow: 0 30px 90px rgba(0, 0, 0, .5); animation: lbin .25s ease;
}
@keyframes lbin { from { opacity: 0; transform: scale(.94); } to { opacity: 1; transform: none; } }
.lightbox .lb-cap {
  position: absolute; bottom: 18px; left: 50%; transform: translateX(-50%);
  color: #cfe8e8; font-size: 13px; background: rgba(0, 50, 52, .6); padding: 6px 16px; border-radius: 8px;
}

/* ===== 通用工具 ===== */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px; }
.muted { color: var(--muted); }
.mt-0 { margin-top: 0; }
.center { text-align: center; }

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .topbar-nav { position: fixed; inset: var(--header-h) 0 auto 0; background: var(--card); flex-direction: column; align-items: stretch; padding: 12px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-hover); display: none; }
  .topbar-nav.open { display: flex; }
  .nav-toggle { display: block; }
  .cmdk-hint { display: none; }
  .anchor-nav { display: none; }
  .hero { padding: 60px 18px 80px; }
  .page { padding: 28px 16px 70px; }
  .dept-banner { padding: 30px 22px; }
  .guide-step { grid-template-columns: 38px 1fr; gap: 12px; }
  .guide-step .g-num { width: 38px; height: 38px; font-size: 14px; }
  .guide-step::before { left: 18px; }
}