/* ============================================================
   合同生成器 — 现代化样式系统
   设计语言：柔和渐变 + 卡片化 + 微动效
   ============================================================ */

:root {
  --primary: #4f46e5;
  --primary-600: #4338ca;
  --primary-50: #eef2ff;
  --accent: #f59e0b;
  --success: #10b981;
  --danger: #ef4444;
  --info: #06b6d4;
  --violet: #8b5cf6;

  --text: #0f172a;
  --text-2: #475569;
  --text-3: #94a3b8;
  --border: #e2e8f0;
  --bg: #f5f7fb;
  --bg-soft: #f1f5f9;
  --card: #ffffff;
  --nav-bg: rgba(15, 23, 42, .82);
  --preview-bg-1: #eef2f7;
  --preview-bg-2: #e2e8f0;
  --doc-bg: #ffffff;
  --doc-text: #1a1a1a;

  --shadow-sm: 0 1px 2px rgba(15,23,42,.04), 0 1px 3px rgba(15,23,42,.06);
  --shadow: 0 4px 14px rgba(15,23,42,.06), 0 2px 4px rgba(15,23,42,.04);
  --shadow-lg: 0 20px 50px rgba(15,23,42,.12);

  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 22px;
  --preview-scale: 1;
}

[data-theme="dark"] {
  --primary: #818cf8;
  --primary-600: #6366f1;
  --primary-50: #1e1b4b;
  --text: #e2e8f0;
  --text-2: #cbd5e1;
  --text-3: #64748b;
  --border: #1f2937;
  --bg: #0b1020;
  --bg-soft: #111827;
  --card: #0f172a;
  --nav-bg: rgba(2, 6, 23, .9);
  --preview-bg-1: #0b1020;
  --preview-bg-2: #060814;
  --doc-bg: #111827;
  --doc-text: #e2e8f0;

  --shadow-sm: 0 1px 2px rgba(0,0,0,.4), 0 1px 3px rgba(0,0,0,.4);
  --shadow: 0 4px 14px rgba(0,0,0,.4), 0 2px 4px rgba(0,0,0,.4);
  --shadow-lg: 0 20px 50px rgba(0,0,0,.6);
}

* { box-sizing: border-box; }

html, body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at -10% -20%, rgba(79,70,229,.08), transparent 60%),
    radial-gradient(900px 500px at 110% 10%, rgba(139,92,246,.08), transparent 60%),
    linear-gradient(180deg, #f8fafc 0%, var(--bg) 100%);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; }

/* ============================================================
   顶部导航
   ============================================================ */
.app-nav {
  position: sticky; top: 0; z-index: 100;
  padding: 12px 0;
  background: var(--nav-bg);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  box-shadow: 0 1px 0 rgba(255,255,255,.06), 0 8px 24px rgba(15,23,42,.18);
}

/* 主题切换按钮 */
.icon-btn {
  display: inline-grid; place-items: center;
  width: 34px; height: 34px;
  border-radius: 10px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  color: #cbd5e1; font-size: 16px;
  cursor: pointer; transition: background .2s ease, transform .2s ease;
}
.icon-btn:hover { background: rgba(255,255,255,.14); color: #fff; }
.icon-btn:active { transform: scale(.92); }
.app-nav .container-fluid { padding: 0 22px; }

.brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: #fff; font-weight: 600; font-size: 16px; letter-spacing: .3px;
}
.brand:hover { color: #fff; opacity: .9; }
.brand-logo-wrap {
  width: 38px; height: 38px; border-radius: 11px;
  display: grid; place-items: center;
  background: rgba(255,255,255,.94);
  box-shadow: 0 8px 22px rgba(15,23,42,.28);
  overflow: hidden;
}
.brand-logo {
  width: 30px; height: 30px;
  object-fit: contain;
  display: block;
}
.brand-copy { display: flex; flex-direction: column; gap: 1px; line-height: 1.1; }
.brand-text { font-size: 16px; font-weight: 700; letter-spacing: .3px; }
.brand-company { font-size: 11px; color: rgba(226,232,240,.78); font-weight: 500; letter-spacing: 0; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 9px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  box-shadow: 0 6px 18px rgba(99,102,241,.45);
  color: #fff; font-size: 16px;
}

/* CN/EN 切换 */
.lang-toggle {
  display: inline-flex; align-items: center;
  padding: 4px; border-radius: 999px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  color: #cbd5e1; font-size: 12.5px; font-weight: 600;
  cursor: pointer; user-select: none;
  transition: background .2s ease;
}
.lang-toggle:hover { background: rgba(255,255,255,.12); }
.lang-toggle .lang-opt {
  padding: 4px 12px; border-radius: 999px; line-height: 1;
  transition: all .25s ease;
}
.lang-toggle .lang-opt.active {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff;
  box-shadow: 0 4px 12px rgba(99,102,241,.45);
}

.user-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px; border-radius: 999px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  color: #e2e8f0; font-size: 12.5px;
}
.user-badge::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%;
  background: var(--success); box-shadow: 0 0 0 3px rgba(16,185,129,.25);
}

.btn-outline-light {
  border-color: rgba(255,255,255,.25); color: #e2e8f0;
}
.btn-outline-light:hover {
  background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.35); color: #fff;
}

/* ============================================================
   登录 / 注册
   ============================================================ */
.auth-wrap {
  min-height: calc(100vh - 64px);
  display: grid; place-items: center;
  padding: 40px 20px;
}
.auth-card {
  width: 100%; max-width: 960px;
  display: grid; grid-template-columns: 1.05fr 1fr;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}
@media (max-width: 768px) {
  .auth-card { grid-template-columns: 1fr; max-width: 460px; }
}

.auth-hero {
  position: relative;
  padding: 44px 40px;
  color: #fff;
  background:
    radial-gradient(circle at 80% 0%, rgba(255,255,255,.18), transparent 50%),
    radial-gradient(circle at 0% 100%, rgba(255,255,255,.12), transparent 50%),
    linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #ec4899 100%);
  overflow: hidden;
}
.auth-hero::after {
  content: ""; position: absolute; inset: 0;
  background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 40 40'><path d='M0 20h40M20 0v40' stroke='rgba(255,255,255,.05)' stroke-width='1'/></svg>");
  pointer-events: none;
}
.auth-brand-block {
  position: relative; z-index: 1;
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 26px;
}
.auth-logo {
  width: 64px; height: 64px;
  object-fit: contain;
  border-radius: 18px;
  padding: 10px;
  background: rgba(255,255,255,.94);
  border: 1px solid rgba(255,255,255,.35);
  box-shadow: 0 16px 38px rgba(15,23,42,.25);
}
.auth-company-cn { font-size: 16px; font-weight: 700; color: #fff; letter-spacing: .4px; }
.auth-company-en { margin-top: 5px; font-size: 12px; color: rgba(255,255,255,.78); }
.auth-hero-icon {
  width: 56px; height: 56px; border-radius: 16px;
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.25);
  display: grid; place-items: center;
  font-size: 26px; color: #fff;
  backdrop-filter: blur(8px);
  margin-bottom: 22px;
}
.auth-hero-title { position: relative; z-index: 1; font-size: 32px; font-weight: 800; margin: 0 0 10px; letter-spacing: .5px; }
.auth-hero-sub { position: relative; z-index: 1; color: rgba(255,255,255,.85); font-size: 14.5px; line-height: 1.7; margin-bottom: 24px; }
.auth-features { list-style: none; padding: 0; margin: 0; }
.auth-features li {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 0; font-size: 14px; color: rgba(255,255,255,.95);
}
.auth-features li i {
  width: 28px; height: 28px; border-radius: 8px;
  background: rgba(255,255,255,.18);
  display: grid; place-items: center;
}

.auth-form-wrap { padding: 44px 40px; }
.auth-tabs {
  list-style: none; display: flex; gap: 4px; padding: 4px; margin: 0 0 22px;
  background: var(--bg-soft); border-radius: 12px;
}
.auth-tabs li { flex: 1; }
.auth-tabs .tab {
  display: block; text-align: center; padding: 9px 0;
  border-radius: 9px; color: var(--text-2); font-weight: 500; font-size: 14px;
  transition: all .25s ease;
}
.auth-tabs .tab:hover { color: var(--primary); }
.auth-tabs .tab.active {
  background: #fff; color: var(--primary);
  box-shadow: 0 1px 3px rgba(15,23,42,.08);
}

.auth-form .form-label { font-size: 13px; color: var(--text-2); font-weight: 500; margin-bottom: 6px; }
.input-icon { position: relative; }
.input-icon > i {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--text-3); font-size: 16px; pointer-events: none;
}
.input-icon .form-control { padding-left: 38px; }

/* ============================================================
   通用控件
   ============================================================ */
.form-control, .form-select {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font-size: 14px;
  background: #fff;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(79,70,229,.12);
}
.form-control-sm, .form-select-sm { padding: 7px 10px; font-size: 13px; border-radius: 8px; }
textarea.form-control { line-height: 1.6; }

.btn {
  border-radius: var(--radius-sm);
  font-weight: 500; font-size: 14px;
  padding: 9px 18px;
  transition: transform .12s ease, box-shadow .2s ease, background .2s ease;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  border: none; color: #fff;
  box-shadow: 0 6px 16px rgba(79,70,229,.32);
}
.btn-primary:hover { background: linear-gradient(135deg, #4338ca, #4f46e5); box-shadow: 0 8px 20px rgba(79,70,229,.42); }
.btn-primary:disabled { opacity: .7; }

.btn-success {
  background: linear-gradient(135deg, #059669, #10b981);
  border: none; color: #fff;
  box-shadow: 0 4px 12px rgba(16,185,129,.3);
}
.btn-success:hover { background: linear-gradient(135deg, #047857, #059669); }

.btn-block-lg { padding: 11px 18px; font-size: 14.5px; }
.btn-glow { box-shadow: 0 8px 22px rgba(79,70,229,.35); }

.btn-soft {
  background: var(--primary-50); color: var(--primary);
  border: 1px solid transparent;
  font-weight: 500;
}
.btn-soft:hover { background: #e0e7ff; color: var(--primary-600); }

/* 导出按钮 */
.btn-export {
  border-radius: 8px; padding: 5px 12px; font-size: 12.5px; font-weight: 500;
  border: 1px solid var(--border); background: #fff; color: var(--text-2);
  display: inline-flex; align-items: center; gap: 4px;
}
.btn-export i { font-size: 14px; }
.btn-export:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn-docx:hover { color: #2b579a; border-color: #2b579a; }
.btn-pdf:hover { color: #d23a3a; border-color: #d23a3a; }
.btn-html:hover { color: var(--primary); border-color: var(--primary); }

/* 修订按钮 */
.btn-revise {
  background: linear-gradient(135deg, #f59e0b, #f97316);
  border: none; color: #fff; font-weight: 500; font-size: 13px;
  padding: 8px 16px; border-radius: var(--radius-sm);
  white-space: nowrap; box-shadow: 0 4px 12px rgba(245,158,11,.32);
}
.btn-revise:hover { background: linear-gradient(135deg, #d97706, #ea580c); color: #fff; }
.btn-revise:disabled { opacity: .7; }

/* ============================================================
   卡片与节
   ============================================================ */
.main-app { max-width: 1480px; margin: 0 auto; padding: 22px 22px 60px; }

.section-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow .25s ease, transform .25s ease;
}
.section-card:hover { box-shadow: var(--shadow); }

.section-head {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #fff 0%, #fafbff 100%);
}
.section-icon {
  width: 32px; height: 32px; border-radius: 9px;
  display: grid; place-items: center;
  color: #fff; font-size: 14px;
  box-shadow: 0 4px 10px rgba(15,23,42,.1);
  flex-shrink: 0;
}
.bg-grad-primary { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.bg-grad-emerald { background: linear-gradient(135deg, #10b981, #059669); }
.bg-grad-amber   { background: linear-gradient(135deg, #f59e0b, #f97316); }
.bg-grad-violet  { background: linear-gradient(135deg, #8b5cf6, #ec4899); }
.bg-grad-cyan    { background: linear-gradient(135deg, #06b6d4, #0ea5e9); }

.section-title { font-weight: 600; font-size: 14.5px; color: var(--text); letter-spacing: .2px; }

.card-body { padding: 14px 16px; }
.form-label { font-size: 12.5px; color: var(--text-2); font-weight: 500; margin-bottom: 4px; }

/* 甲乙方 block */
.party-block {
  border: 1px solid var(--border); border-radius: 10px;
  padding: 10px 12px; background: #fafbff;
}
.party-head {
  display: flex; align-items: center; gap: 8px; margin-bottom: 8px;
  font-size: 12.5px; color: var(--text-2);
}
.party-head .btn-link { color: var(--primary); text-decoration: none; font-size: 12px; }
.party-tag {
  display: inline-grid; place-items: center;
  width: 22px; height: 22px; border-radius: 6px;
  color: #fff; font-weight: 700; font-size: 12px;
}
.tag-a { background: linear-gradient(135deg, #6366f1, #4f46e5); }
.tag-b { background: linear-gradient(135deg, #ec4899, #db2777); }
.party-label { font-weight: 600; color: var(--text); }

/* 列表（模板 / 历史） */
.item-list {
  list-style: none; margin: 0; padding: 0;
  max-height: 260px; overflow-y: auto;
}
.item-list li {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  transition: background .15s ease;
}
.item-list li:hover { background: var(--bg-soft); }
.item-list li:first-child { border-top: none; }
.item-list strong { color: var(--text); font-weight: 600; }
.item-list .text-muted { color: var(--text-3) !important; font-size: 12px; }
.item-list .btn-link { padding: 0 6px; font-size: 12.5px; text-decoration: none; }
.item-list .btn-link:hover { text-decoration: underline; }
.item-list .ellipsis { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ============================================================
   预览区
   ============================================================ */
.preview-card { position: sticky; top: 78px; }
@media (max-width: 991px) { .preview-card { position: static; } }

.revise-panel {
  padding: 12px 16px;
  background: linear-gradient(180deg, #fffbeb, #fff);
  border-bottom: 1px solid var(--border);
}
.revise-panel .form-label { color: #92400e; font-weight: 600; }

.preview-card #previewArea {
  background: linear-gradient(180deg, var(--preview-bg-1) 0%, var(--preview-bg-2) 100%);
  padding: 28px 20px;
  min-height: 70vh;
  max-height: calc(100vh - 200px);
  overflow-y: auto;
}
.preview-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-height: 60vh; color: var(--text-3); gap: 14px;
}
.preview-empty i { font-size: 56px; opacity: .35; }
.preview-empty p { margin: 0; font-size: 14px; }

/* ============================================================
   合同 HTML 内容样式（与 PDF/DOCX 一致）
   ============================================================ */
#previewArea .contract-doc,
#previewArea > div:not(.contract-doc):not(.preview-empty):not(.skeleton-doc) {
  background: var(--doc-bg);
  max-width: 820px; margin: 0 auto; padding: 56px 64px;
  border-radius: 6px;
  box-shadow: 0 4px 28px rgba(15,23,42,.12), 0 1px 3px rgba(15,23,42,.06);
  font-family: "Noto Serif SC", "SimSun", "Songti SC", "Source Han Serif SC", "Microsoft YaHei", serif;
  color: var(--doc-text); font-size: 14px; line-height: 1.9;
}
#previewArea h1 { text-align:center; font-size: 26px; font-weight: 700; letter-spacing: 4px; margin: 0 0 28px; padding-bottom: 14px; border-bottom: 1px solid #e5e7eb; }
#previewArea h2 { font-size: 17px; font-weight: 700; margin: 22px 0 10px; padding-left: 10px; border-left: 4px solid #4f46e5; }
#previewArea h3 { font-size: 15px; font-weight: 700; margin: 16px 0 8px; color:#1f2937; }
#previewArea h4 { font-size: 14px; font-weight: 700; margin: 12px 0 6px; }
#previewArea p { text-indent: 2em; margin: 6px 0; line-height: 1.95; text-align: justify; }
#previewArea ol, #previewArea ul { padding-left: 2.4em; margin: 6px 0 10px; }
#previewArea ol > li, #previewArea ul > li { margin: 4px 0; line-height: 1.9; text-indent: 0; }
#previewArea table { border-collapse: collapse; width: 100%; margin: 14px 0; font-size: 13.5px; }
#previewArea table, #previewArea th, #previewArea td { border: 1px solid #1f2937; }
#previewArea th { background:#eef2f7; font-weight: 700; padding: 9px 10px; text-align: center; vertical-align: middle; }
#previewArea td { padding: 9px 10px; text-align: left; vertical-align: middle; }
#previewArea tbody tr:nth-child(even) td { background:#fafbfc; }
#previewArea td.num, #previewArea td.center { text-align: center; }

/* parties-block */
#previewArea table.parties-block,
#previewArea table.parties-block tr,
#previewArea table.parties-block td { border: none !important; background: transparent !important; }
#previewArea table.parties-block { margin: 8px 0 22px; padding: 14px 18px; background:#fafafa; border:1px solid #e5e7eb !important; border-left: 4px solid #6b7280 !important; table-layout: fixed; }
#previewArea table.parties-block td { width: 50%; vertical-align: top; padding: 4px 18px 4px 0; text-align: left !important; }
#previewArea table.parties-block td + td { padding: 4px 0 4px 18px; border-left: 1px dashed #d1d5db !important; }
#previewArea table.parties-block p,
#previewArea table.parties-block .party-line,
#previewArea table.parties-block .party-name { text-indent: 0 !important; text-align: left !important; margin: 4px 0; line-height: 1.85; padding-left: 0; }
#previewArea table.parties-block .party-name { margin: 4px 0 8px; font-weight: 600; color:#111827; }
#previewArea table.parties-block .party-key { color:#6b7280; margin-right: 4px; }
#previewArea table.parties-block .party-blank { display:inline-block; min-width: 6em; border-bottom: 1px dashed #c7c7c7; }
#previewArea .parties-intro { text-indent: 0 !important; text-align: left !important; margin: 6px 0; color:#374151; }

#previewArea .page-break { display:block; height:0; margin: 28px 0; border-top: 1px dashed #94a3b8; page-break-before: always; break-before: page; }

#previewArea .signature-block,
#previewArea .signature-block tr,
#previewArea .signature-block td { border: none !important; background: transparent !important; }
#previewArea .signature-block { margin-top: 50px; }
#previewArea .signature-block td { width: 50%; vertical-align: top; padding: 0 24px 0 0; text-align: left; }
#previewArea .signature-block td + td { padding: 0 0 0 24px; text-align: right; }
#previewArea .signature-block td p { text-indent: 0; text-align: left; margin: 6px 0; line-height: 2.2; min-height: 1.2em; }
#previewArea .signature-block td + td p { text-align: right; }

/* 模板审查 */
#reviewContent h3 { font-size: 14px; font-weight: 700; margin-top: 12px; color: var(--text); }
#reviewContent ol, #reviewContent ul { padding-left: 20px; }
#reviewContent li { margin-bottom: 4px; }

/* ============================================================
   Toast
   ============================================================ */
.toast-box { position: fixed; top: 80px; right: 22px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast-box .alert {
  border: 0; border-radius: 12px; padding: 10px 16px; font-size: 13.5px;
  box-shadow: 0 12px 28px rgba(15,23,42,.18);
  animation: toastIn .35s ease;
}
.toast-box .alert-success { background: #ecfdf5; color: #047857; border-left: 4px solid var(--success); }
.toast-box .alert-danger { background: #fef2f2; color: #b91c1c; border-left: 4px solid var(--danger); }
.toast-box .alert-warning { background: #fffbeb; color: #b45309; border-left: 4px solid var(--accent); }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   左侧 Tab 切换
   ============================================================ */
.left-panel { overflow: visible; }
.side-tabs {
  list-style: none; margin: 0; padding: 6px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px;
  background: var(--bg-soft); border-bottom: 1px solid var(--border);
}
.side-tabs li {
  cursor: pointer; user-select: none;
  text-align: center; padding: 9px 6px;
  border-radius: 9px; font-size: 13.5px; font-weight: 500;
  color: var(--text-2);
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  transition: all .2s ease;
}
.side-tabs li:hover { color: var(--primary); }
.side-tabs li.active {
  background: var(--card); color: var(--primary);
  box-shadow: 0 1px 3px rgba(15,23,42,.08);
}
.side-tabs li i { font-size: 14px; }
.side-pane { display: none; }
.side-pane.active { display: block; }

/* 表单提示 */
.form-hint {
  font-size: 11.5px; color: var(--text-3); margin-top: 3px;
  display: inline-flex; align-items: center; gap: 4px;
}
.form-hint i { font-size: 12px; }

/* 历史搜索 */
.input-icon > i {
  position: absolute; left: 10px; top: 50%; transform: translateY(-50%);
  color: var(--text-3); font-size: 13.5px; pointer-events: none;
}
#histSearch { padding-left: 30px; }

.usage-box {
  margin: 0 0 8px;
  padding: 8px 12px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(79,70,229,.08), rgba(139,92,246,.08));
  border: 1px solid var(--border);
  font-size: 12px; color: var(--text-2);
  display: none;
}
.usage-box.show { display: block; }
.usage-box strong { color: var(--text); }

/* 历史 / 模板列表项的标签 chip */
.chip {
  display: inline-block; padding: 1px 8px; border-radius: 999px;
  background: var(--primary-50); color: var(--primary);
  font-size: 11px; font-weight: 500; margin-left: 4px;
}
[data-theme="dark"] .chip { background: rgba(129,140,248,.18); }

/* ============================================================
   预览：头部 / 缩放 / TOC / 骨架
   ============================================================ */
.preview-head { flex-wrap: wrap; row-gap: 6px; }
.meta-pills { display: inline-flex; flex-wrap: wrap; gap: 4px; }
.meta-pill {
  display: inline-block; font-size: 11px; padding: 2px 8px;
  border-radius: 999px; background: var(--bg-soft); color: var(--text-2);
  border: 1px solid var(--border);
}

.zoom-ctrl {
  display: inline-flex; align-items: center;
  background: var(--bg-soft); border: 1px solid var(--border);
  border-radius: 999px; padding: 2px;
}
.zoom-ctrl .z-btn {
  border: 0; background: transparent; color: var(--text-2);
  width: 26px; height: 26px; border-radius: 999px;
  display: inline-grid; place-items: center; cursor: pointer;
}
.zoom-ctrl .z-btn:hover { background: var(--card); color: var(--primary); }
.zoom-ctrl .z-val { font-size: 11.5px; color: var(--text-2); padding: 0 6px; min-width: 36px; text-align: center; }

.preview-body { display: flex; gap: 0; align-items: stretch; }
.preview-area-wrap { flex: 1; min-width: 0; }

.preview-toc {
  width: 220px; flex-shrink: 0;
  border-right: 1px solid var(--border);
  background: var(--bg-soft);
  padding: 14px 12px;
  max-height: calc(100vh - 200px);
  overflow-y: auto;
}
.toc-title {
  font-size: 12px; color: var(--text-3); font-weight: 600; text-transform: uppercase;
  letter-spacing: .5px; margin-bottom: 8px;
  display: flex; align-items: center; gap: 6px;
}
.toc-list {
  list-style: none; counter-reset: toc; margin: 0; padding: 0;
}
.toc-list li {
  font-size: 12.5px; line-height: 1.5; padding: 5px 8px; border-radius: 6px;
  color: var(--text-2); cursor: pointer; transition: all .15s ease;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.toc-list li:hover { background: var(--card); color: var(--primary); }
.toc-list li.active {
  background: var(--primary-50); color: var(--primary); font-weight: 500;
}
.toc-list li.lvl-3 { padding-left: 18px; font-size: 12px; color: var(--text-3); }

@media (max-width: 1199px) { .preview-toc { display: none !important; } }

/* 预览中合同的缩放（影响所有内容） */
#previewArea .contract-doc,
#previewArea > div:not(.contract-doc):not(.preview-empty):not(.skeleton-doc) {
  transform-origin: top center;
  font-size: calc(14px * var(--preview-scale));
}

/* 流式预览：边写边渲染的临时容器 */
#previewArea .contract-doc.streaming {
  position: relative;
  min-height: 200px;
}
.stream-indicator {
  position: sticky; top: 0; z-index: 5;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; margin-bottom: 12px;
  background: linear-gradient(135deg, rgba(79,70,229,.12), rgba(139,92,246,.12));
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: 'Inter', sans-serif;
  font-size: 12px; color: var(--primary-600); font-weight: 600;
  letter-spacing: .3px;
}
[data-theme="dark"] .stream-indicator { color: var(--primary); }
.stream-indicator .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--primary);
  animation: stream-pulse 1.2s ease-in-out infinite;
}
.stream-indicator .dot:nth-child(2) { animation-delay: .15s; }
.stream-indicator .dot:nth-child(3) { animation-delay: .3s; }
@keyframes stream-pulse {
  0%, 80%, 100% { opacity: .25; transform: scale(.85); }
  40% { opacity: 1; transform: scale(1.15); }
}
.stream-body { position: relative; }
.stream-body::after {
  content: "▍";
  color: var(--primary);
  animation: cursor-blink 1s infinite;
  margin-left: 1px;
  font-weight: 700;
}
@keyframes cursor-blink { 50% { opacity: 0; } }

/* 骨架屏 */
.skeleton-doc {
  background: var(--doc-bg);
  max-width: 820px; margin: 0 auto; padding: 56px 64px;
  border-radius: 6px;
  box-shadow: 0 4px 28px rgba(15,23,42,.12);
}
.skeleton-doc .sk-line {
  height: 12px; margin: 10px 0; border-radius: 4px;
  background: linear-gradient(90deg, var(--bg-soft) 0%, var(--border) 50%, var(--bg-soft) 100%);
  background-size: 200% 100%;
  animation: skeleton 1.4s ease-in-out infinite;
}
.skeleton-doc .sk-title { height: 30px; width: 60%; margin: 0 auto 28px; }
.skeleton-doc .sk-h { height: 16px; width: 30%; margin-top: 22px; }
.skeleton-doc .sk-short { width: 70%; }
.skeleton-doc .sk-med { width: 85%; }
@keyframes skeleton {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* 审查面板 — 不同对象用不同图标背景 */
.review-head .section-title { line-height: 1.25; }
.review-subject {
  display: inline-block; margin-top: 1px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  max-width: 100%; font-size: 11.5px;
}
.review-subject .sub-tag {
  display: inline-block; margin-right: 6px;
  padding: 1px 7px; border-radius: 999px; font-weight: 600;
  font-size: 11px; letter-spacing: .2px;
}
.review-subject .sub-tag.contract {
  background: rgba(139,92,246,.15); color: var(--violet);
}
.review-subject .sub-tag.template {
  background: rgba(6,182,212,.15); color: var(--info);
}
[data-theme="dark"] .review-subject .sub-tag.contract { background: rgba(139,92,246,.25); }
[data-theme="dark"] .review-subject .sub-tag.template { background: rgba(6,182,212,.25); }

/* 修订面板 hint 文本颜色 */
.revise-panel .form-hint { color: #92400e; }
[data-theme="dark"] .revise-panel { background: linear-gradient(180deg, #2d1b04, var(--card)); }
[data-theme="dark"] .revise-panel .form-label,
[data-theme="dark"] .revise-panel .form-hint { color: #f59e0b; }

/* 修订历史 offcanvas */
.rev-item {
  border: 1px solid var(--border); border-radius: 10px;
  padding: 10px 12px; margin-bottom: 8px;
  display: flex; align-items: flex-start; gap: 10px;
  transition: box-shadow .2s ease;
  background: var(--card);
}
.rev-item:hover { box-shadow: var(--shadow-sm); }
.rev-item .rev-idx {
  flex-shrink: 0;
  display: inline-grid; place-items: center;
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--primary-50); color: var(--primary);
  font-size: 12px; font-weight: 700;
}
.rev-item .rev-info { flex: 1; min-width: 0; font-size: 12.5px; }
.rev-item .rev-instr { color: var(--text); font-weight: 500; word-break: break-word; }
.rev-item .rev-meta { color: var(--text-3); font-size: 11.5px; margin-top: 2px; }
.rev-item .rev-actions { flex-shrink: 0; display: flex; gap: 4px; }

/* dark mode for offcanvas/modal */
[data-theme="dark"] .offcanvas,
[data-theme="dark"] .modal-content { background: var(--card); color: var(--text); }
[data-theme="dark"] .modal-header,
[data-theme="dark"] .modal-footer,
[data-theme="dark"] .offcanvas-header { border-color: var(--border); }
[data-theme="dark"] .btn-close { filter: invert(1) grayscale(1) brightness(1.6); }

/* ============================================================
   响应式调整
   ============================================================ */
@media (max-width: 991px) {
  .main-app { padding: 16px; }
  .preview-card #previewArea { max-height: none; }
}
@media (max-width: 576px) {
  .auth-form-wrap, .auth-hero { padding: 30px 22px; }
  #previewArea .contract-doc,
  #previewArea > div:not(.contract-doc):not(.preview-empty) { padding: 28px 22px; }
}

/* 滚动条美化 */
.item-list::-webkit-scrollbar,
#previewArea::-webkit-scrollbar,
#reviewContent::-webkit-scrollbar { width: 8px; height: 8px; }
.item-list::-webkit-scrollbar-thumb,
#previewArea::-webkit-scrollbar-thumb,
#reviewContent::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 999px; }
.item-list::-webkit-scrollbar-thumb:hover,
#previewArea::-webkit-scrollbar-thumb:hover,
#reviewContent::-webkit-scrollbar-thumb:hover { background: #94a3b8; }