/* 刑事办案工具站 - 统一样式（无外链字体，系统字体栈，大陆可用） */
:root {
  --primary: #1a4b8c;
  --primary-dark: #123766;
  --primary-light: #eaf1fb;
  --accent: #b8860b;
  --danger: #c0392b;
  --success: #1e7e34;
  --bg: #f5f6f8;
  --card: #ffffff;
  --border: #dde3ea;
  --text: #24292f;
  --text-light: #6a737d;
  --font-serif: "Songti SC", "STSong", SimSun, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(16, 42, 83, 0.08);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.7;
}

/* —— 顶栏 —— */
.topbar {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}
.topbar .brand { display: flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 600; text-decoration: none; color: #fff; }
.topbar .brand .scale { font-size: 22px; }
.topbar .nav-links { display: flex; gap: 2px; flex-wrap: wrap; }
.topbar .nav-links a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 14px;
  transition: background 0.15s;
}
.topbar .nav-links a:hover, .topbar .nav-links a.active { background: rgba(255,255,255,0.15); color: #fff; }
.topbar .user-box { display: flex; align-items: center; gap: 12px; font-size: 13px; }
.topbar .user-box a { color: rgba(255,255,255,0.8); text-decoration: none; }

/* —— 布局 —— */
.container { max-width: 1200px; margin: 0 auto; padding: 24px 20px 60px; }
.container-wide { max-width: 1400px; margin: 0 auto; padding: 20px 16px 60px; }
.page-title { font-size: 22px; font-weight: 600; margin-bottom: 4px; }
.page-sub { color: var(--text-light); font-size: 13px; margin-bottom: 20px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.card h2 { font-size: 16px; margin-bottom: 12px; padding-left: 10px; border-left: 3px solid var(--primary); }
.card h3 { font-size: 15px; margin: 14px 0 8px; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }

/* 功能卡片（首页） */
.tool-card {
  display: block; text-decoration: none; color: inherit;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; transition: all 0.15s; box-shadow: var(--shadow);
}
.tool-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.tool-card .icon { font-size: 28px; margin-bottom: 8px; }
.tool-card .name { font-size: 16px; font-weight: 600; color: var(--primary); margin-bottom: 4px; }
.tool-card .desc { font-size: 13px; color: var(--text-light); }

/* —— 表单 —— */
label.f-label { display: block; font-size: 13px; font-weight: 600; margin: 12px 0 5px; color: var(--text); }
input[type=text], input[type=password], input[type=number], select, textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 14px; font-family: var(--font-sans); background: #fff; color: var(--text);
}
textarea { resize: vertical; min-height: 120px; line-height: 1.7; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary-light); }
.btn {
  display: inline-block; padding: 9px 20px; border: none; border-radius: 6px;
  font-size: 14px; cursor: pointer; text-decoration: none; text-align: center;
  background: var(--primary); color: #fff; transition: background 0.15s;
}
.btn:hover { background: var(--primary-dark); }
.btn:disabled { background: #9fb3cd; cursor: not-allowed; }
.btn-outline { background: #fff; color: var(--primary); border: 1px solid var(--primary); }
.btn-outline:hover { background: var(--primary-light); }
.btn-ghost { background: #eef1f5; color: var(--text); }
.btn-ghost:hover { background: #e2e7ee; }
.btn-danger { background: var(--danger); }
.btn-sm { padding: 5px 12px; font-size: 13px; }
.form-row { display: flex; gap: 12px; flex-wrap: wrap; }
.form-row > * { flex: 1; min-width: 180px; }

/* 复选/标签选择 */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 5px 12px; border: 1px solid var(--border); border-radius: 16px;
  font-size: 13px; cursor: pointer; user-select: none; background: #fff; transition: all 0.12s;
}
.chip:hover { border-color: var(--primary); }
.chip.on { background: var(--primary); border-color: var(--primary); color: #fff; }

/* —— 提示条 —— */
.alert { padding: 10px 14px; border-radius: 6px; font-size: 13px; margin: 10px 0; }
.alert-info { background: var(--primary-light); color: var(--primary-dark); border: 1px solid #c4d7f2; }
.alert-warn { background: #fdf6e3; color: #8a6d1a; border: 1px solid #f0dfb2; }
.alert-danger { background: #fdecea; color: var(--danger); border: 1px solid #f5c6c0; }
.alert-success { background: #e8f5e9; color: var(--success); border: 1px solid #c3e6cb; }

/* —— 表格 —— */
.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
.tbl th, .tbl td { padding: 9px 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.tbl th { background: #f8fafc; font-weight: 600; font-size: 13px; color: var(--text-light); white-space: nowrap; }
.tbl tr:hover td { background: #fafbfd; }

/* —— 折叠区块 —— */
details.fold { border: 1px solid var(--border); border-radius: 6px; margin: 8px 0; background: #fff; }
details.fold > summary {
  padding: 10px 14px; cursor: pointer; font-weight: 600; font-size: 14px;
  list-style: none; display: flex; align-items: center; gap: 8px; user-select: none;
}
details.fold > summary::before { content: "▸"; transition: transform 0.15s; color: var(--primary); }
details.fold[open] > summary::before { transform: rotate(90deg); }
details.fold > .fold-body { padding: 4px 16px 14px; border-top: 1px dashed var(--border); }

/* —— markdown 输出区 —— */
.md { font-size: 15px; line-height: 1.85; }
.md h1 { font-size: 21px; margin: 18px 0 12px; padding-bottom: 8px; border-bottom: 2px solid var(--primary); font-family: var(--font-serif); }
.md h2 { font-size: 17px; margin: 20px 0 10px; color: var(--primary-dark); font-family: var(--font-serif); }
.md h3 { font-size: 15px; margin: 14px 0 8px; }
.md p { margin: 8px 0; }
.md ul, .md ol { padding-left: 24px; margin: 8px 0; }
.md li { margin: 3px 0; }
.md blockquote { border-left: 3px solid var(--accent); padding: 6px 14px; margin: 10px 0; background: #fdfaf2; color: #6b5b1e; }
.md table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 14px; }
.md th, .md td { border: 1px solid var(--border); padding: 7px 10px; text-align: left; }
.md th { background: #f4f7fb; }
.md strong { color: var(--primary-dark); }
.md hr { border: none; border-top: 1px dashed var(--border); margin: 16px 0; }

/* 流式输出 */
.stream-box { position: relative; min-height: 80px; max-height: 70vh; overflow-y: auto; padding: 16px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); }
.stream-box .cursor { display: inline-block; width: 7px; height: 16px; background: var(--primary); animation: blink 0.9s infinite; vertical-align: text-bottom; margin-left: 2px; }
@keyframes blink { 50% { opacity: 0; } }
.reasoning { background: #f7f8fa; border-left: 3px solid #b8c4d4; padding: 10px 14px; margin: 8px 0; font-size: 13px; color: var(--text-light); border-radius: 0 6px 6px 0; }
.reasoning .r-title { font-weight: 600; cursor: pointer; user-select: none; }
.reasoning .r-body { margin-top: 6px; white-space: pre-wrap; display: none; }
.reasoning.open .r-body { display: block; }

/* 状态行 */
.status-line { display: flex; align-items: center; gap: 8px; padding: 8px 12px; background: var(--primary-light); border-radius: 6px; font-size: 13px; color: var(--primary-dark); margin: 10px 0; }
.spinner { width: 14px; height: 14px; border: 2px solid #c4d7f2; border-top-color: var(--primary); border-radius: 50%; animation: spin 0.8s linear infinite; flex-shrink: 0; }
@keyframes spin { to { transform: rotate(360deg); } }

/* 法条/条文 */
.article-item { padding: 12px 14px; border-bottom: 1px solid var(--border); }
.article-item:last-child { border-bottom: none; }
.article-item .a-head { display: flex; justify-content: space-between; gap: 10px; margin-bottom: 4px; }
.article-item .a-label { font-weight: 600; color: var(--primary); font-size: 14px; }
.article-item .a-chapter { font-size: 12px; color: var(--text-light); }
.article-item .a-text { font-size: 14px; line-height: 1.8; font-family: var(--font-serif); }
.article-item mark { background: #ffe89c; padding: 0 1px; }
.law-meta { font-size: 13px; color: var(--text-light); }

/* 罪名选择器 */
.crime-picker { position: relative; }
.crime-picker .dropdown {
  position: absolute; top: 100%; left: 0; right: 0; z-index: 50;
  background: #fff; border: 1px solid var(--border); border-radius: 6px;
  max-height: 320px; overflow-y: auto; box-shadow: 0 4px 16px rgba(16,42,83,0.12); display: none;
}
.crime-picker .dropdown.show { display: block; }
.crime-picker .dropdown .opt { padding: 8px 14px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-size: 14px; }
.crime-picker .dropdown .opt:hover { background: var(--primary-light); }
.crime-picker .dropdown .opt .cat { font-size: 12px; color: var(--text-light); }

/* 案例列表 */
.case-item { padding: 14px; border: 1px solid var(--border); border-radius: 6px; margin: 10px 0; background: #fff; }
.case-item .c-title { font-weight: 600; color: var(--primary-dark); cursor: pointer; }
.case-item .c-meta { font-size: 12px; color: var(--text-light); margin: 4px 0; display: flex; gap: 14px; flex-wrap: wrap; }
.case-item .c-summary { font-size: 13px; margin-top: 6px; color: var(--text); }
.badge { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12px; background: var(--primary-light); color: var(--primary-dark); }

/* 模态 */
.modal-mask { display: none; position: fixed; inset: 0; background: rgba(10,20,40,0.5); z-index: 200; padding: 40px 16px; overflow-y: auto; }
.modal-mask.show { display: block; }
.modal { background: #fff; border-radius: 10px; max-width: 860px; margin: 0 auto; padding: 24px; }
.modal .m-close { float: right; cursor: pointer; font-size: 20px; color: var(--text-light); border: none; background: none; }

/* 登录页 */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(160deg, var(--primary-dark) 0%, var(--primary) 55%, #2d6ab0 100%); }
.login-card { background: #fff; border-radius: 12px; padding: 40px 36px; width: 380px; max-width: 92vw; box-shadow: 0 12px 40px rgba(0,0,0,0.25); }
.login-card .logo { text-align: center; font-size: 34px; margin-bottom: 6px; }
.login-card h1 { text-align: center; font-size: 19px; margin-bottom: 4px; font-family: var(--font-serif); }
.login-card .sub { text-align: center; font-size: 12px; color: var(--text-light); margin-bottom: 22px; }

/* 程序法三栏布局 */
.proc-layout { display: grid; grid-template-columns: 240px 1fr; gap: 16px; align-items: start; }
@media (max-width: 860px) { .proc-layout { grid-template-columns: 1fr; } }
.proc-tree { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 10px; max-height: 78vh; overflow-y: auto; position: sticky; top: 72px; }
.proc-tree .law-item { padding: 8px 10px; border-radius: 6px; cursor: pointer; font-size: 14px; }
.proc-tree .law-item:hover { background: var(--primary-light); }
.proc-tree .law-item.on { background: var(--primary); color: #fff; }
.proc-tree .chap { padding: 5px 10px 5px 20px; font-size: 12.5px; color: var(--text-light); cursor: pointer; border-radius: 4px; }
.proc-tree .chap:hover { background: var(--primary-light); color: var(--primary-dark); }

.proc-articles { max-height: 78vh; overflow-y: auto; }
.proc-toolbar { position: sticky; top: 0; background: #fff; padding: 10px 0; border-bottom: 1px solid var(--border); z-index: 5; display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

/* 字数统计 */
.char-count { font-size: 12px; color: var(--text-light); text-align: right; margin-top: 3px; }
.char-count.over { color: var(--danger); }

footer.footer { text-align: center; color: var(--text-light); font-size: 12px; padding: 30px 0 20px; }
.muted { color: var(--text-light); font-size: 13px; }
.mt8 { margin-top: 8px; } .mt16 { margin-top: 16px; } .mb8 { margin-bottom: 8px; }
.flex { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }
.hidden { display: none !important; }