* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-zh);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--c-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1,h2,h3,h4 { margin: 0 0 .4em; line-height: 1.3; }
button { font-family: inherit; cursor: pointer; }
.hidden { display: none !important; }
.muted { color: var(--text-muted); }
.secondary { color: var(--text-secondary); }
.mono { font-family: var(--font-mono); }
.center { text-align: center; }
.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.flex-1 { flex: 1; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: 8px; }
.gap { gap: 12px; }
.wrap { flex-wrap: wrap; }
.nowrap { white-space: nowrap; }
.full { width: 100%; }

/* ============ Top bar ============ */
#topbar {
  position: sticky; top: 0; z-index: 50;
  height: var(--topbar-h);
  display: flex; align-items: center; gap: 16px;
  padding: 0 18px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand .logo {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-ai));
  display: grid; place-items: center; color: #fff; font-weight: 800; font-family: var(--font-mono);
}
.topbar-search {
  flex: 1; max-width: 520px; position: relative;
}
.topbar-search input {
  width: 100%; height: 38px; padding: 0 14px 0 38px;
  border: 1px solid var(--border); border-radius: 999px;
  background: var(--bg-subtle); color: var(--text); font-size: 14px;
}
.topbar-search input:focus { outline: none; border-color: var(--c-primary); background: var(--bg-elevated); }
.topbar-search .icon { position: absolute; left: 13px; top: 9px; color: var(--text-muted); }
.topbar-actions { display: flex; align-items: center; gap: 6px; }

/* ============ Buttons ============ */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  height: 36px; padding: 0 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--bg-elevated); color: var(--text);
  font-size: 13px; font-weight: 500; transition: all .1s ease;
  white-space: nowrap;
}
.btn:hover { background: var(--bg-hover); }
.btn:active { transform: scale(.96); }
.btn .ic { width: 16px; height: 16px; }
.btn-primary { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }
.btn-primary:hover { background: var(--c-primary-600); }
.btn-ai { background: var(--c-ai); border-color: var(--c-ai); color: #fff; }
.btn-ai:hover { filter: brightness(1.08); }
.btn-success { background: var(--c-success); border-color: var(--c-success); color: #fff; }
.btn-danger { background: var(--c-danger); border-color: var(--c-danger); color: #fff; }
.btn-danger:hover { filter: brightness(1.05); }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-ghost:hover { background: var(--bg-hover); }
.btn-sm { height: 30px; padding: 0 10px; font-size: 12px; }
.btn-lg { height: 44px; padding: 0 22px; font-size: 15px; }
.btn-icon { width: 36px; height: 36px; padding: 0; justify-content: center; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.icon-btn {
  width: 36px; height: 36px; border-radius: var(--radius-sm);
  display: grid; place-items: center; border: none; background: transparent; color: var(--text-secondary);
}
.icon-btn:hover { background: var(--bg-hover); color: var(--text); }

/* ============ Layout ============ */
.layout { display: flex; min-height: calc(100vh - var(--topbar-h)); align-items: stretch; }
.sidebar {
  width: var(--sidebar-w); flex-shrink: 0;
  border-right: 1px solid var(--border); background: var(--bg-elevated);
  padding: 14px 10px; position: sticky; top: var(--topbar-h);
  height: calc(100vh - var(--topbar-h)); overflow-y: auto;
}
.main { flex: 1; min-width: 0; padding: 22px 26px 60px; }
.container { max-width: 1180px; margin: 0 auto; }

/* ============ Sidebar tree ============ */
.nav-section-title { font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--text-muted); padding: 14px 10px 6px; }
.tree-node { user-select: none; }
.tree-row {
  display: flex; align-items: center; gap: 6px; padding: 6px 8px; border-radius: 8px;
  cursor: pointer; color: var(--text-secondary); font-size: 13px;
}
.tree-row:hover { background: var(--bg-hover); color: var(--text); }
.tree-row.active { background: var(--c-primary-50); color: var(--c-primary); font-weight: 600; }
.tree-row .twist { width: 14px; transition: transform .2s; color: var(--text-muted); flex-shrink: 0; }
.tree-row.open .twist { transform: rotate(90deg); }
.tree-children { margin-left: 12px; border-left: 1px dashed var(--border); padding-left: 4px; }
.tree-count { margin-left: auto; font-size: 11px; color: var(--text-muted); background: var(--bg-subtle); padding: 1px 7px; border-radius: 999px; }
.side-nav-item { display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 8px; color: var(--text-secondary); font-size: 13px; cursor: pointer; }
.side-nav-item:hover { background: var(--bg-hover); color: var(--text); text-decoration: none; }
.side-nav-item.active { background: var(--c-primary-50); color: var(--c-primary); font-weight: 600; }
.side-nav-item .ic { width: 17px; height: 17px; }

/* ============ Cards ============ */
.card { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow-sm); }
.card-hover { transition: transform .15s ease, box-shadow .15s ease; }
.card-hover:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }

/* ============ Tags / chips ============ */
.tag { display: inline-flex; align-items: center; gap: 4px; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 500; background: var(--bg-subtle); color: var(--text-secondary); border: 1px solid transparent; }
.tag-primary { background: var(--c-primary-50); color: var(--c-primary); }
.tag-ai { background: var(--c-ai-50); color: var(--c-ai); }
.tag-success { background: rgba(16,185,129,.12); color: var(--c-success); }
.tag-warning { background: rgba(245,158,11,.14); color: var(--c-warning); }
.tag-danger { background: rgba(239,68,68,.12); color: var(--c-danger); }
.tag-outline { border-color: var(--border-strong); }

.diff { font-weight: 600; }
.diff-初级 { color: var(--d-easy); }
.diff-中级 { color: var(--d-mid); }
.diff-高级 { color: var(--d-high); }
.diff-专家 { color: var(--d-expert); }

/* ============ Forms ============ */
label.field { display: block; margin-bottom: 14px; }
label.field > span { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--text-secondary); }
input[type=text], input[type=password], input[type=number], input[type=email], textarea, select {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg-elevated); color: var(--text); font-size: 14px; font-family: inherit;
}
textarea { resize: vertical; min-height: 80px; }
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--c-primary); box-shadow: 0 0 0 3px var(--c-primary-50); }
.checkbox { display: inline-flex; align-items: center; gap: 7px; cursor: pointer; font-size: 13px; }
.checkbox input { width: 16px; height: 16px; }
.input-with-action { position: relative; }
.input-with-action .trail { position: absolute; right: 6px; top: 5px; }

/* ============ Question card ============ */
.q-card { display: block; text-decoration: none; color: inherit; cursor: pointer; }
.q-card .q-title { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.q-card .q-excerpt { color: var(--text-secondary); font-size: 13px; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.q-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.q-foot { display: flex; align-items: center; gap: 14px; margin-top: 12px; font-size: 12px; color: var(--text-muted); }
.q-foot .ic { width: 14px; height: 14px; vertical-align: -2px; }

/* ============ Grids ============ */
.grid { display: grid; gap: 16px; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-auto { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }

/* ============ Hero ============ */
.hero { text-align: center; padding: 40px 16px 28px; background: linear-gradient(135deg, rgba(37,99,235,.06), rgba(124,58,237,.06)); border-radius: var(--radius-lg); border: 1px solid var(--border); }
.hero h1 { font-size: 34px; font-weight: 800; letter-spacing: -.5px; background: linear-gradient(120deg, var(--c-primary), var(--c-ai)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero p { color: var(--text-secondary); font-size: 15px; max-width: 640px; margin: 10px auto 22px; }
.hero-search { display: flex; max-width: 560px; margin: 0 auto; gap: 8px; }
.hero-search input { height: 48px; border-radius: 999px; font-size: 15px; }
.hot-tags { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 18px; }
.hot-tags .tag { cursor: pointer; }
.hot-tags .tag:hover { border-color: var(--c-primary); color: var(--c-primary); }

/* ============ Stat block ============ */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.stat { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; text-align: center; }
.stat .num { font-size: 30px; font-weight: 800; color: var(--c-primary); font-family: var(--font-mono); }
.stat.ai .num { color: var(--c-ai); }
.stat .label { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }

/* ============ Section heading ============ */
.section-head { display: flex; align-items: center; justify-content: space-between; margin: 30px 0 14px; }
.section-head h2 { font-size: 20px; font-weight: 700; margin: 0; }
.section-head .more { font-size: 13px; }

/* ============ Filters bar ============ */
.toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 16px; padding: 12px; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); }
.toolbar .seg { display: inline-flex; border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.toolbar .seg button { border: none; background: transparent; padding: 7px 12px; font-size: 13px; color: var(--text-secondary); }
.toolbar .seg button.active { background: var(--c-primary); color: #fff; }
.spacer { flex: 1; }
.select-mini { height: 34px; padding: 0 10px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--bg-elevated); color: var(--text); font-size: 13px; }

/* ============ Breadcrumb ============ */
.breadcrumb { font-size: 13px; color: var(--text-muted); margin-bottom: 14px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb .sep { opacity: .6; }

/* ============ Modal ============ */
.modal-mask { position: fixed; inset: 0; background: rgba(15,23,42,.5); backdrop-filter: blur(2px); z-index: 100; display: grid; place-items: center; padding: 20px; }
.modal { background: var(--bg-elevated); border-radius: var(--radius-lg); width: 100%; max-width: 560px; max-height: 88vh; overflow: auto; box-shadow: var(--shadow-lg); border: 1px solid var(--border); }
.modal.wide { max-width: 920px; }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: var(--bg-elevated); z-index: 2; }
.modal-head h3 { margin: 0; font-size: 16px; }
.modal-body { padding: 20px; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; position: sticky; bottom: 0; background: var(--bg-elevated); }

/* ============ Toast ============ */
.toast-root { position: fixed; top: 16px; right: 16px; z-index: 200; display: flex; flex-direction: column; gap: 10px; max-width: 360px; }
.toast { display: flex; align-items: flex-start; gap: 10px; padding: 12px 14px; border-radius: var(--radius); background: var(--bg-elevated); box-shadow: var(--shadow-lg); border: 1px solid var(--border); border-left: 4px solid var(--c-primary); animation: toast-in .25s ease; }
.toast.success { border-left-color: var(--c-success); }
.toast.warn { border-left-color: var(--c-warning); }
.toast.error { border-left-color: var(--c-danger); }
.toast .t-ic { width: 18px; height: 18px; flex-shrink: 0; margin-top: 1px; }
.toast.success .t-ic { color: var(--c-success); }
.toast.warn .t-ic { color: var(--c-warning); }
.toast.error .t-ic { color: var(--c-danger); }
.toast .t-msg { font-size: 13px; color: var(--text); }
.toast .t-close { margin-left: auto; color: var(--text-muted); cursor: pointer; }

/* ============ Badge for role ============ */
.role-badge { font-size: 11px; padding: 2px 8px; border-radius: 999px; background: var(--c-ai-50); color: var(--c-ai); font-weight: 600; }

/* ============ Empty state ============ */
.empty { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.empty .em-ic { width: 56px; height: 56px; opacity: .4; margin-bottom: 12px; }

/* ============ Skill card (position detail) ============ */
.skill-card { border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; background: var(--bg-elevated); cursor: pointer; transition: transform .15s, box-shadow .15s; }
.skill-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.skill-card.bonus { border-color: rgba(124,58,237,.3); background: linear-gradient(180deg, var(--c-ai-50), var(--bg-elevated)); }
.skill-card .sk-name { font-weight: 700; font-size: 14px; }
.skill-card .sk-depth { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.stars { color: var(--c-warning); letter-spacing: 1px; }
.stars .off { color: var(--border-strong); }

/* ============ Question detail ============ */
.qd-head { }
.qd-body { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; margin-top: 14px; }
.qd-answer { background: var(--c-primary-50); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; margin-top: 14px; }
.md { line-height: 1.75; word-break: break-word; }
.md h1,.md h2,.md h3 { margin: 1em 0 .4em; }
.md code { font-family: var(--font-mono); background: var(--bg-subtle); padding: 2px 5px; border-radius: 5px; font-size: .9em; }
.md pre { background: #0f172a; color: #e2e8f0; padding: 14px 16px; border-radius: 10px; overflow: auto; }
.md pre code { background: transparent; padding: 0; color: inherit; }
.md blockquote { border-left: 3px solid var(--c-primary); margin: 1em 0; padding: 4px 14px; color: var(--text-secondary); background: var(--bg-subtle); border-radius: 0 8px 8px 0; }
.md table { border-collapse: collapse; width: 100%; margin: 1em 0; }
.md th,.md td { border: 1px solid var(--border); padding: 8px 10px; text-align: left; }
.md ul,.md ol { padding-left: 1.4em; }
.md a { color: var(--c-primary); }

/* ============ Editor split ============ */
.editor-split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.editor-pane, .preview-pane { border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-elevated); }
.preview-pane { padding: 16px; overflow: auto; min-height: 320px; max-height: 70vh; }
.editor-pane textarea { border: none; min-height: 320px; max-height: 70vh; font-family: var(--font-mono); font-size: 13px; }
.editor-pane textarea:focus { box-shadow: none; }
.pane-head { padding: 8px 12px; border-bottom: 1px solid var(--border); font-size: 12px; font-weight: 600; color: var(--text-secondary); display: flex; justify-content: space-between; }

/* ============ Progress ============ */
.progress { height: 14px; background: var(--bg-subtle); border-radius: 999px; overflow: hidden; box-shadow: inset 0 1px 3px rgba(0,0,0,.08); }
.progress > span { display: block; height: 100%; background: linear-gradient(90deg, var(--c-primary), var(--c-ai), var(--c-primary)); background-size: 200% 100%; animation: pg-flow 1.3s linear infinite; transition: width .3s; }
@keyframes pg-flow { from { background-position: 0 0; } to { background-position: -200% 0; } }
.progress-text { font-size: 12px; color: var(--text-secondary); margin-top: 6px; }

/* ============ Tag input ============ */
.tag-input { display: flex; flex-wrap: wrap; gap: 6px; padding: 7px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg-elevated); }
.tag-input input { border: none; outline: none; flex: 1; min-width: 120px; background: transparent; color: var(--text); padding: 2px; }
.tag-input .chip { display: inline-flex; align-items: center; gap: 5px; background: var(--c-primary-50); color: var(--c-primary); padding: 2px 8px; border-radius: 999px; font-size: 12px; }
.tag-input .chip .x { cursor: pointer; opacity: .7; display: inline-flex; align-items: center; justify-content: center; width: 16px; height: 16px; border-radius: 50%; margin-left: 2px; flex: none; }
.tag-input .chip .x:hover { opacity: 1; background: rgba(0,0,0,.10); }
.tag-input .chip .x .ic { width: 12px; height: 12px; display: block; }

/* ============ Combo（可搜索分类下拉） ============ */
.combo { position: relative; }
.combo > input { width: 100%; cursor: text; }
.combo-list { position: absolute; z-index: 50; top: calc(100% + 4px); left: 0; right: 0; max-height: 280px; overflow-y: auto; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-sm); box-shadow: 0 8px 24px rgba(0,0,0,.14); padding: 4px; }
.combo-item { padding: 7px 10px; border-radius: var(--radius-sm); cursor: pointer; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.combo-item:hover { background: var(--c-primary-50); }
.combo-item.active { background: var(--c-primary-50); color: var(--c-primary); font-weight: 600; }
.combo-item.muted { color: var(--muted); cursor: default; }

/* ============ Steps（醒目步骤条 + 进度连线动画） ============ */
.steps { position: relative; display: flex; gap: 4px; margin-bottom: 22px; flex-wrap: wrap; align-items: flex-start; padding: 4px 0; }
/* 背景轨道 */
.steps::before { content: ""; position: absolute; top: 16px; left: 16px; right: 16px; height: 4px; background: var(--bg-subtle); border-radius: 999px; z-index: 0; }
/* 进度填充 */
.steps::after { content: ""; position: absolute; top: 16px; left: 16px; height: 4px; width: var(--step-progress, 0%); max-width: calc(100% - 32px); background: linear-gradient(90deg, var(--c-primary), var(--c-ai)); border-radius: 999px; transition: width .55s cubic-bezier(.4,0,.2,1); z-index: 1; box-shadow: 0 0 8px var(--c-ai); }
.step { position: relative; z-index: 2; display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-muted); transition: color .3s; }
.step .dot { position: relative; width: 24px; height: 24px; border-radius: 50%; background: var(--bg-elevated); border: 2px solid var(--border); display: grid; place-items: center; font-size: 12px; font-weight: 700; transition: all .35s; box-sizing: border-box; }
.step.active { color: var(--c-primary); font-weight: 600; }
.step.active .dot { background: var(--c-primary); border-color: var(--c-primary); color: #fff; box-shadow: 0 0 0 4px var(--c-primary-15, rgba(37,99,235,.15)); animation: stepPulse 1.6s ease-out infinite; }
.step.done { color: var(--c-success); }
.step.done .dot { background: var(--c-success); border-color: var(--c-success); color: transparent; box-shadow: none; animation: none; }
.step.done .dot::after { content: "\2713"; position: absolute; inset: 0; display: grid; place-items: center; color: #fff; font-size: 13px; font-weight: 700; }

/* ============ AI streaming ============ */
.ai-stream { background: var(--bg-subtle); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; font-family: var(--font-mono); font-size: 13px; max-height: 300px; overflow: auto; white-space: pre-wrap; }

/* AI 实时进度日志面板 */
.ai-log { background: var(--bg-subtle); border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 12px; font-family: var(--font-mono); font-size: 12.5px; line-height: 1.85; max-height: 240px; overflow: auto; }
.ai-log:empty::before { content: "等待开始…"; color: var(--text-muted); }
.log-line { display: flex; align-items: baseline; gap: 8px; }
.log-dot { flex: 0 0 auto; width: 8px; height: 8px; border-radius: 50%; background: var(--c-primary); margin-top: 7px; }
.log-line.ok .log-dot { background: var(--c-success); }
.log-line.warn .log-dot { background: var(--c-warning); }
.log-line.err .log-dot { background: var(--c-danger); }
.log-line.spin .log-dot { background: var(--c-ai); animation: blink 1s steps(2) infinite; }
.log-ts { flex: 0 0 auto; color: var(--text-muted); }
.log-msg { color: var(--text-secondary); word-break: break-word; }
.ai-raw { margin-top: 10px; font-size: 13px; color: var(--text-secondary); }
.ai-raw > summary { cursor: pointer; user-select: none; padding: 4px 0; }
.ai-raw > summary:hover { color: var(--text); }
.cursor-blink::after { content: "▋"; animation: blink 1s steps(2) infinite; color: var(--c-ai); }

/* 日志工具条：复制日志 / 自动滚动 */
.ai-log-toolbar { display: flex; gap: 8px; margin-bottom: 8px; flex-wrap: wrap; }
.log-btn { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; line-height: 1; padding: 6px 10px; border: 1px solid var(--border); background: var(--bg-elevated); color: var(--text-secondary); border-radius: 999px; cursor: pointer; transition: all .2s; }
.log-btn:hover { color: var(--text); border-color: var(--c-primary); }
.log-btn .ic { width: 14px; height: 14px; }
.log-btn.active { color: var(--c-primary); border-color: var(--c-primary); background: var(--c-primary-10, rgba(37,99,235,.1)); }
.log-btn.copied { color: var(--c-success); border-color: var(--c-success); background: var(--c-success-10, rgba(22,163,74,.1)); }
.log-btn .ic { width: 14px; height: 14px; }

/* ============ Table ============ */
table.data { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data th, table.data td { border-bottom: 1px solid var(--border); padding: 10px 12px; text-align: left; }
table.data th { color: var(--text-secondary); font-weight: 600; background: var(--bg-subtle); }
table.data tr:hover td { background: var(--bg-hover); }

/* ============ Pagination ============ */
.pager { display: flex; align-items: center; justify-content: center; gap: 6px; margin-top: 20px; }
.pager button { min-width: 34px; height: 34px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg-elevated); color: var(--text); }
.pager button.active { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }

/* ============ Dropzone ============ */
.dropzone { border: 2px dashed var(--border-strong); border-radius: var(--radius); padding: 30px; text-align: center; color: var(--text-secondary); transition: all .15s; cursor: pointer; }
.dropzone.drag { border-color: var(--c-primary); background: var(--c-primary-50); }

/* ============ Misc ============ */
.note { font-size: 12px; color: var(--text-muted); background: var(--bg-subtle); border-left: 3px solid var(--c-warning); padding: 8px 12px; border-radius: 0 8px 8px 0; margin: 10px 0; }
.note.ai { border-left-color: var(--c-ai); background: var(--c-ai-50); }
.divider { height: 1px; background: var(--border); margin: 16px 0; }
.pill-row { display: flex; flex-wrap: wrap; gap: 8px; }
.row { display: flex; align-items: center; gap: 10px; }
.skeleton { background: linear-gradient(90deg, var(--bg-subtle) 25%, var(--bg-hover) 50%, var(--bg-subtle) 75%); background-size: 200% 100%; animation: shimmer 1.4s infinite; border-radius: 8px; }
.ask-item { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 8px 12px; margin-bottom: 6px; background: var(--bg-elevated); }
.foot-note { text-align: center; color: var(--text-muted); font-size: 12px; padding: 24px; }
.kbd { font-family: var(--font-mono); background: var(--bg-subtle); border: 1px solid var(--border); border-radius: 5px; padding: 1px 6px; font-size: 12px; }

/* ============ Admin dropdown menu ============ */
.dropdown-wrap { position: relative; }
.dropdown {
  position: absolute; top: calc(100% + 6px); right: 0;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-lg);
  padding: 6px; min-width: 184px; z-index: 60;
  animation: dropdownIn .14s ease;
}
@keyframes dropdownIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.dropdown a {
  display: flex; align-items: center; gap: 9px;
  padding: 9px 11px; border-radius: 8px;
  color: var(--text-secondary); font-size: 13px;
}
.dropdown a:hover { background: var(--bg-hover); color: var(--text); text-decoration: none; }
.dropdown a svg { width: 16px; height: 16px; flex: none; }
.dropdown .sep { height: 1px; background: var(--border); margin: 5px 6px; }

/* 窄屏：步骤条可能换行，隐藏连线伪元素避免错位 */
@media (max-width: 560px) {
  .steps::before, .steps::after { display: none; }
  .step { margin-bottom: 6px; }
}

/* 顶部访问统计胶囊 */
.vis-chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 11px; border-radius: 999px; background: rgba(37,99,235,.08); border: 1px solid rgba(37,99,235,.18); font-size: 12px; color: #475569; white-space: nowrap; }
.vis-chip .ic { width: 15px; height: 15px; opacity: .7; flex: none; animation: vis-pulse 2.5s ease-in-out infinite; }
.vis-chip .vic { line-height: 1; }
.vis-chip .vic b { color: #2563EB; font-weight: 700; }
.vis-chip .vis-num { display: inline-block; padding: 0 3px; border-radius: 4px; }
.vis-chip .vis-flash { animation: vis-flash .6s ease; }
@keyframes vis-pulse { 0%,100% { opacity: .55; } 50% { opacity: 1; } }
@keyframes vis-flash { 0% { background: rgba(37,99,235,.35); transform: scale(1.15); } 100% { background: transparent; transform: scale(1); } }
html[data-theme="dark"] .vis-chip { background: rgba(56,189,248,.1); border-color: rgba(56,189,248,.22); color: #aeb9c9; }
html[data-theme="dark"] .vis-chip .vic b { color: #38bdf8; }
@media (max-width: 720px) { .vis-chip { display: none; } }