/* ============================================================
   中小学语文作文批改专家 · 中华古风主题
   ============================================================ */
:root {
  --paper: #f6f2e8;
  --paper-2: #efe8d8;
  --paper-3: #e7dec9;
  --ink: #2b2b2b;
  --ink-soft: #5b5346;
  --ink-faint: #8a8172;
  --cinnabar: #a83232;
  --cinnabar-dark: #872626;
  --bamboo: #4a6b4a;
  --bamboo-dark: #3a563a;
  --indigo: #2f4858;
  --indigo-dark: #24363f;
  --gold: #b08d57;
  --line: #d8cbb0;
  --line-soft: #e6ddc9;
  --shadow: 0 6px 20px rgba(60, 50, 30, 0.10);
  --shadow-lg: 0 14px 40px rgba(50, 42, 26, 0.18);
  --radius: 10px;
  --font-kai: "LXGW WenKai", "KaiTi", "楷体", "STKaiti", "Songti SC", "SimSun", serif;
  --font-song: "Songti SC", "SimSun", "STSong", serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
[v-cloak] { display: none; }

body {
  font-family: var(--font-kai);
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    radial-gradient(rgba(176, 141, 87, 0.06) 1px, transparent 1px),
    radial-gradient(rgba(47, 72, 88, 0.05) 1px, transparent 1px),
    linear-gradient(180deg, #f7f3ea 0%, #f1ebdd 100%);
  background-size: 22px 22px, 22px 22px, 100% 100%;
  background-position: 0 0, 11px 11px, 0 0;
  min-height: 100vh;
}

/* ---------- 布局 ---------- */
.app-shell { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }

.sidebar {
  background:
    linear-gradient(180deg, var(--indigo-dark) 0%, var(--indigo) 55%, var(--bamboo-dark) 100%);
  color: #f0ead9;
  padding: 22px 16px;
  position: relative;
  overflow: hidden;
}
.sidebar::after {
  content: "";
  position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 16px 16px;
  pointer-events: none;
}
.brand { text-align: center; padding: 8px 0 18px; border-bottom: 1px solid rgba(240,234,217,0.18); position: relative; z-index: 1; }
.brand .seal {
  width: 56px; height: 56px; margin: 0 auto 10px;
  background: var(--cinnabar);
  color: #fbeede; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; font-weight: 700; letter-spacing: 2px;
  box-shadow: 0 4px 12px rgba(168,50,50,0.5), inset 0 0 0 2px rgba(255,255,255,0.35);
  transform: rotate(-3deg);
}
.brand h1 { font-size: 19px; margin: 0; letter-spacing: 3px; font-weight: 700; }
.brand .sub { font-size: 13px; opacity: 0.7; letter-spacing: 2px; margin-top: 4px; }

.nav { margin-top: 18px; position: relative; z-index: 1; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 14px; margin-bottom: 6px; border-radius: 8px;
  cursor: pointer; font-size: 16.5px; letter-spacing: 1px;
  transition: all 0.18s ease; border-left: 3px solid transparent;
}
.nav-item:hover { background: rgba(255,255,255,0.08); }
.nav-item.active {
  background: rgba(168,50,50,0.22);
  border-left-color: var(--cinnabar);
  color: #fff;
}
.nav-item .ico { font-size: 17.5px; opacity: 0.9; }
.sidebar-foot { position: absolute; bottom: 14px; left: 0; right: 0; text-align: center; font-size: 13px; opacity: 0.55; letter-spacing: 1px; }

/* ---------- 主区 ---------- */
.main { display: flex; flex-direction: column; min-width: 0; }
.banner {
  position: relative; color: #f3ecda;
  background: linear-gradient(120deg, #24363f 0%, #2f4858 45%, #3a563a 100%);
  padding: 22px 30px;
  overflow: hidden;
}
.banner::before {
  content: "";
  position: absolute; right: -40px; top: -60px; width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(176,141,87,0.35), transparent 65%);
}
.banner::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0; height: 4px;
  background: linear-gradient(90deg, var(--cinnabar), var(--gold), var(--bamboo));
}
.banner h2 { margin: 0; font-size: 25px; letter-spacing: 4px; }
.banner p { margin: 6px 0 0; font-size: 14.5px; opacity: 0.8; letter-spacing: 1px; }

.content { padding: 26px 30px 60px; flex: 1; }

/* ---------- 通用组件 ---------- */
.card {
  background: linear-gradient(180deg, #fdfbf5 0%, #f8f4ea 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 22px;
  position: relative;
}
.card + .card { margin-top: 18px; }
.card-title {
  font-size: 19px; font-weight: 700; letter-spacing: 2px;
  margin: 0 0 16px; padding-left: 12px; position: relative; color: var(--ink);
}
.card-title::before {
  content: ""; position: absolute; left: 0; top: 2px; bottom: 2px; width: 4px;
  background: linear-gradient(180deg, var(--cinnabar), var(--gold)); border-radius: 2px;
}
.card-title .hint { font-size: 13.5px; color: var(--ink-faint); font-weight: 400; margin-left: 10px; letter-spacing: 0; }

.section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; gap: 12px; flex-wrap: wrap; }

.btn {
  font-family: var(--font-kai); font-size: 15.5px; letter-spacing: 1px;
  padding: 8px 18px; border-radius: 8px; border: 1px solid var(--line);
  background: #fdfbf5; color: var(--ink); cursor: pointer;
  transition: all 0.16s ease;
}
.btn:hover { border-color: var(--gold); box-shadow: 0 3px 10px rgba(176,141,87,0.22); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: linear-gradient(180deg, #b83a3a, var(--cinnabar-dark)); color: #fff; border-color: var(--cinnabar-dark); }
.btn-primary:hover { box-shadow: 0 4px 14px rgba(168,50,50,0.4); }
.btn-bamboo { background: linear-gradient(180deg, #577a57, var(--bamboo-dark)); color: #fff; border-color: var(--bamboo-dark); }
.btn-sm { padding: 5px 12px; font-size: 14.5px; }
.btn-ghost { background: transparent; }

.input, .select, .textarea {
  font-family: var(--font-kai); font-size: 15.5px; color: var(--ink);
  width: 100%; padding: 9px 12px; border: 1px solid var(--line);
  border-radius: 8px; background: #fffdf8; outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.input:focus, .select:focus, .textarea:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(176,141,87,0.15); }
.textarea { resize: vertical; line-height: 1.9; min-height: 120px; }
label.field { display: block; margin-bottom: 14px; }
label.field > span { display: block; font-size: 14.5px; color: var(--ink-soft); margin-bottom: 6px; letter-spacing: 1px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0 16px; }

table.tbl { width: 100%; border-collapse: collapse; font-size: 15.5px; }
table.tbl th, table.tbl td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line-soft); }
table.tbl th { color: var(--ink-soft); font-weight: 700; letter-spacing: 1px; background: rgba(176,141,87,0.08); }
table.tbl tr:hover td { background: rgba(176,141,87,0.06); }

.tag {
  display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 13.5px;
  border: 1px solid var(--line); background: #fffdf8; color: var(--ink-soft);
}
.tag-ok { color: var(--bamboo-dark); border-color: #b9cdb9; background: #eef4ee; }
.tag-off { color: var(--cinnabar-dark); border-color: #e0bcbc; background: #fbeeee; }
.tag-gold { color: var(--gold); border-color: #dcc79e; background: #fbf6ec; }

.empty { text-align: center; color: var(--ink-faint); padding: 34px 10px; font-size: 15.5px; letter-spacing: 1px; }

/* ---------- 首页 ---------- */
.hero {
  display: grid; grid-template-columns: 1.3fr 1fr; gap: 22px; align-items: stretch;
}
.hero-main { padding: 34px 30px; }
.hero-main h3 { font-size: 29px; letter-spacing: 4px; margin: 0 0 14px; }
.hero-main p.lead { color: var(--ink-soft); line-height: 2; font-size: 16.5px; letter-spacing: 0.5px; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 20px; }
.feature { border: 1px solid var(--line-soft); border-radius: 8px; padding: 12px 14px; background: #fffdf8; }
.feature b { display: block; margin-bottom: 4px; letter-spacing: 1px; }
.feature span { font-size: 14px; color: var(--ink-faint); line-height: 1.7; }
.hero-side { display: flex; flex-direction: column; gap: 18px; }
.stat-card { text-align: center; padding: 20px; }
.stat-card .num { font-size: 34px; color: var(--cinnabar); font-weight: 700; }
.stat-card .lbl { font-size: 14.5px; color: var(--ink-faint); letter-spacing: 2px; margin-top: 4px; }

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(30, 26, 18, 0.45);
  display: flex; align-items: center; justify-content: center; z-index: 50; padding: 20px;
}
.modal {
  background: var(--paper); border: 1px solid var(--line); border-radius: 12px;
  box-shadow: var(--shadow-lg); width: 100%; max-width: 620px; max-height: 88vh; overflow: auto;
}
.modal-head { padding: 16px 22px; border-bottom: 1px solid var(--line-soft); font-size: 19px; font-weight: 700; letter-spacing: 2px; }
.modal-body { padding: 20px 22px; }
.modal-foot { padding: 14px 22px; border-top: 1px solid var(--line-soft); display: flex; justify-content: flex-end; gap: 10px; }

/* ---------- Toast ---------- */
.toasts { position: fixed; top: 18px; right: 18px; z-index: 100; display: flex; flex-direction: column; gap: 10px; }
.toast {
  padding: 10px 18px; border-radius: 8px; color: #fff; font-size: 15.5px; letter-spacing: 1px;
  box-shadow: var(--shadow-lg); animation: slideIn 0.25s ease; min-width: 180px;
}
.toast.ok { background: linear-gradient(180deg, #577a57, var(--bamboo-dark)); }
.toast.err { background: linear-gradient(180deg, #b83a3a, var(--cinnabar-dark)); }
@keyframes slideIn { from { transform: translateX(30px); opacity: 0; } to { transform: none; opacity: 1; } }

.spinner {
  display: inline-block; width: 14px; height: 14px; border: 2px solid rgba(176,141,87,0.35);
  border-top-color: var(--cinnabar); border-radius: 50%; animation: spin 0.7s linear infinite; vertical-align: -2px; margin-right: 6px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.divider-wave { text-align: center; color: var(--line); letter-spacing: 6px; margin: 22px 0; user-select: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { display: flex; align-items: center; gap: 8px; padding: 10px; overflow-x: auto; }
  .brand { border: none; padding: 0 12px 0 0; text-align: left; display: flex; align-items: center; gap: 10px; }
  .brand .seal { width: 36px; height: 36px; font-size: 17.5px; margin: 0; }
  .brand .sub, .sidebar-foot { display: none; }
  .nav { display: flex; margin: 0; gap: 6px; }
  .nav-item { white-space: nowrap; margin: 0; }
  .hero { grid-template-columns: 1fr; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

/* ---------- 批改结果 ---------- */
.score-row { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; margin-bottom: 10px; }
.score-badge {
  width: 118px; height: 118px; border-radius: 50%; flex: none;
  background: radial-gradient(circle at 35% 30%, #c14b4b, var(--cinnabar) 60%, #7c2222);
  color: #fff; display: flex; flex-direction: column; align-items: center; justify-content: center;
  box-shadow: 0 10px 26px rgba(168,50,50,0.4);
}
.score-badge .num { font-size: 44px; font-weight: 700; line-height: 1; }
.score-badge .of { font-size: 13.5px; opacity: 0.85; margin-top: 4px; }
.band { display: inline-block; font-size: 16.5px; color: #fff; background: var(--bamboo); padding: 3px 16px; border-radius: 20px; letter-spacing: 2px; }
.overall { color: var(--ink-soft); font-size: 16px; margin-top: 10px; max-width: 560px; line-height: 1.9; }

.dims { display: grid; gap: 12px; margin-top: 8px; }
.dim { border: 1px solid var(--line); border-radius: 8px; padding: 12px 16px; background: #fffdf8; }
.dim .top { display: flex; justify-content: space-between; font-size: 16.5px; }
.dim .name { font-weight: 700; letter-spacing: 1px; }
.dim .val { color: var(--cinnabar); font-weight: 700; }
.bar { height: 8px; border-radius: 5px; background: #efe8d8; margin: 8px 0; overflow: hidden; }
.bar > i { display: block; height: 100%; border-radius: 5px; background: linear-gradient(90deg, var(--gold), var(--cinnabar)); }
.dim .cmt { font-size: 15px; color: var(--ink-faint); }

.anno { border-left: 3px solid var(--bamboo); background: #f2f6f0; border-radius: 0 8px 8px 0; padding: 10px 16px; margin-bottom: 10px; font-size: 15.5px; }
.anno .quote { color: var(--ink-soft); font-style: italic; }
.anno .c { margin-top: 4px; }
.anno .tag { font-size: 13.5px; color: var(--bamboo); margin-right: 8px; }

ul.clean { margin: 0; padding-left: 20px; }
ul.clean li { margin: 5px 0; }
.three { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
.panel { border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; background: #fffdf8; }
.panel h3 { margin: 0 0 8px; font-size: 15.5px; letter-spacing: 1px; }
.panel.merit h3 { color: var(--bamboo); }
.panel.demerit h3 { color: var(--cinnabar); }
.panel.sug h3 { color: var(--indigo); }

table.err { width: 100%; border-collapse: collapse; font-size: 15.5px; }
table.err th, table.err td { border: 1px solid var(--line); padding: 8px 12px; text-align: left; }
table.err th { background: rgba(176,141,87,0.1); }

.up { border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; margin-bottom: 12px; background: #fffdf8; }
.up .line { margin: 4px 0; }
.up .old { color: var(--ink-faint); text-decoration: line-through; }
.up .new { color: var(--bamboo); font-weight: 700; }
.up .why { font-size: 14.5px; color: var(--ink-faint); margin-top: 6px; }
.teacher { border: 1px dashed var(--cinnabar); background: #fbf3f3; border-radius: 8px; padding: 16px 20px; font-size: 16.5px; }
.result-block { margin-top: 22px; }
.file-list { font-size: 14.5px; color: var(--ink-soft); margin: 8px 0 0; padding-left: 18px; }
@media (max-width: 900px) { .three { grid-template-columns: 1fr; } }

/* ---------- 上传区（拖拽） ---------- */
.dropzone {
  border: 2px dashed var(--line);
  border-radius: 10px;
  padding: 28px 20px;
  text-align: center;
  background: #fffdf8;
  cursor: pointer;
  transition: all 0.18s ease;
}
.dropzone:hover, .dropzone.dragover { border-color: var(--cinnabar); background: #fbf4ee; }
.dropzone.dragover { box-shadow: 0 0 0 4px rgba(168,50,50,0.12); }
.dropzone .dz-ico { font-size: 36px; color: var(--gold); line-height: 1; }
.dropzone .dz-main { font-size: 16px; margin-top: 10px; letter-spacing: 1px; }
.dropzone .dz-main b { color: var(--cinnabar); }
.dropzone .dz-sub { font-size: 14px; color: var(--ink-faint); margin-top: 6px; }

.file-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.file-chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border: 1px solid var(--line); border-radius: 20px;
  background: #fffdf8; font-size: 14.5px;
}
.file-chip .x { cursor: pointer; color: var(--cinnabar); font-weight: 700; font-size: 16px; line-height: 1; }
.file-chip .x:hover { color: #6e1c1c; }

/* 题目输入方式切换 */
.tab-switch { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; margin-bottom: 12px; }
.tab-switch button {
  padding: 7px 18px; border: none; background: #fffdf8; cursor: pointer;
  font-family: var(--font-kai); font-size: 15px; color: var(--ink-soft);
}
.tab-switch button.active { background: var(--cinnabar); color: #fff; }

/* ---------- 设置页统计 ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 12px; }
.stat { border: 1px solid var(--line); border-radius: 8px; padding: 14px; text-align: center; background: #fffdf8; }
.stat .n { font-size: 24px; font-weight: 700; color: var(--cinnabar); line-height: 1.2; }
.stat .l { font-size: 13.5px; color: var(--ink-faint); letter-spacing: 1px; margin-top: 2px; }

/* ---------- 流式输出 ---------- */
.stream-box {
  white-space: pre-wrap;
  word-break: break-all;
  font-family: var(--font-song);
  font-size: 14px;
  line-height: 1.7;
  max-height: 320px;
  overflow: auto;
  background: #fffdf8;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--ink-soft);
  margin: 0;
}