/* 高考英语训练台 —— 全局样式 */
:root {
  --primary: #4c6ef5;
  --primary-dark: #3b5bdb;
  --primary-light: #edf2ff;
  --success: #2f9e44;
  --success-light: #ebfbee;
  --danger: #e03131;
  --danger-light: #fff5f5;
  --warning: #f08c00;
  --warning-light: #fff9db;
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #212529;
  --muted: #868e96;
  --border: #e9ecef;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(16, 24, 40, .06), 0 4px 16px rgba(16, 24, 40, .06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* ===== 顶部导航 ===== */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand {
  font-weight: 700;
  font-size: 17px;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}
.brand span { color: var(--primary); }
.nav { display: flex; gap: 4px; margin-left: auto; }
.nav a {
  padding: 6px 14px;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  transition: background .15s, color .15s;
}
.nav a:hover { background: var(--bg); color: var(--text); }
.nav a.active { color: var(--primary); background: var(--primary-light); font-weight: 600; }

/* ===== 布局 ===== */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 28px 20px 64px;
}
.page-title { font-size: 24px; margin: 8px 0 4px; }
.page-desc { color: var(--muted); margin: 0 0 24px; font-size: 14px; }

/* ===== 卡片 ===== */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  margin-bottom: 20px;
}
.card h2 { margin: 0 0 12px; font-size: 18px; }
.card h3 { margin: 20px 0 8px; font-size: 15px; }

.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}
.module-card {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  text-decoration: none;
  color: var(--text);
  transition: transform .15s, box-shadow .15s;
  position: relative;
}
.module-card:not(.disabled):hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(16,24,40,.08), 0 8px 24px rgba(16,24,40,.1);
}
.module-card.disabled { opacity: .55; cursor: default; }
.module-card .icon { font-size: 28px; }
.module-card h3 { margin: 10px 0 6px; font-size: 17px; }
.module-card p { margin: 0; color: var(--muted); font-size: 13px; }
.badge {
  display: inline-block;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 600;
  vertical-align: middle;
}
.badge.ready { background: var(--success-light); color: var(--success); }
.badge.soon { background: var(--bg); color: var(--muted); border: 1px solid var(--border); }

/* ===== 按钮 ===== */
.btn {
  display: inline-block;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 9px 18px;
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  transition: background .15s, border-color .15s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-primary:disabled { background: #a5b4fc; cursor: not-allowed; }
.btn-ghost {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-ghost:hover { background: var(--primary-light); }
.btn-plain {
  background: transparent;
  color: var(--muted);
  border-color: var(--border);
}
.btn-plain:hover { color: var(--text); background: var(--bg); }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

/* ===== 表单 ===== */
.field { margin-bottom: 16px; }
.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
}
.field .hint { font-size: 12px; color: var(--muted); margin-top: 4px; }
input[type="text"], input[type="password"], select, textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--primary-light);
  border-color: var(--primary);
}
.input-row { display: flex; gap: 8px; }
.input-row input { flex: 1; }
.radio-row { display: flex; gap: 16px; flex-wrap: wrap; }
.radio-row label { display: flex; gap: 6px; align-items: center; font-weight: 400; font-size: 14px; }

/* ===== 提示条 ===== */
.notice {
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 14px;
  margin-bottom: 20px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  flex-wrap: wrap;
}
.notice .grow { flex: 1; min-width: 200px; }
.notice.info { background: var(--primary-light); color: #364fc7; }
.notice.warning { background: var(--warning-light); color: #9c5e00; }
.notice.error { background: var(--danger-light); color: var(--danger); }
.notice.success { background: var(--success-light); color: var(--success); }
.notice .btn { padding: 5px 12px; font-size: 13px; }

/* ===== 状态小药丸 ===== */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  background: #fff;
}
.pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.pill.ok { color: var(--success); border-color: #b2f2bb; }
.pill.ok .dot { background: var(--success); }
.pill.warn { color: var(--warning); border-color: #ffe066; }
.pill.warn .dot { background: var(--warning); }

/* ===== 题目与作答 ===== */
.quiz-q {
  border-top: 1px solid var(--border);
  padding: 16px 0;
}
.quiz-q:first-of-type { border-top: none; }
.quiz-q .q-line { font-weight: 600; margin-bottom: 10px; }
.quiz-q .q-skill {
  font-size: 11px;
  color: var(--primary);
  background: var(--primary-light);
  border-radius: 999px;
  padding: 1px 8px;
  margin-left: 8px;
  font-weight: 600;
}
.opt {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}
.opt:hover { background: var(--bg); }
.opt input { margin-top: 4px; }
.opt.correct { background: var(--success-light); }
.opt.wrong { background: var(--danger-light); }
.q-explain {
  margin-top: 10px;
  font-size: 13px;
  background: var(--bg);
  border-left: 3px solid var(--primary);
  border-radius: 0 8px 8px 0;
  padding: 10px 12px;
  color: #495057;
}

/* ===== 结果 ===== */
.score-hero { text-align: center; padding: 8px 0 4px; }
.score-hero .num { font-size: 40px; font-weight: 700; color: var(--primary); }
.score-hero .sub { color: var(--muted); font-size: 13px; }

.transcript-box, .passage-box {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  font-size: 14.5px;
  white-space: pre-wrap;
  line-height: 1.8;
}
.passage-box { font-family: Georgia, "Times New Roman", serif; font-size: 15.5px; }

.structure-item {
  border-left: 3px solid var(--primary);
  background: var(--bg);
  border-radius: 0 8px 8px 0;
  padding: 10px 14px;
  margin-bottom: 10px;
  font-size: 14px;
}
.structure-item .role { font-weight: 700; color: var(--primary); margin-right: 8px; }

/* ===== 播放条 ===== */
.player-bar {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  background: var(--primary-light);
  border-radius: 10px;
  padding: 14px 16px;
}
.player-bar .state { font-size: 13px; color: #364fc7; }

/* ===== Toast ===== */
#toast-wrap {
  position: fixed;
  top: 70px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}
.toast {
  background: #343a40;
  color: #fff;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 13px;
  box-shadow: var(--shadow);
  animation: toast-in .2s ease-out;
}
.toast.error { background: var(--danger); }
.toast.success { background: var(--success); }
@keyframes toast-in { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; } }

/* ===== 加载 ===== */
.loading { display: flex; gap: 10px; align-items: center; color: var(--muted); font-size: 14px; padding: 12px 0; }
.spinner {
  width: 18px; height: 18px;
  border: 2.5px solid var(--primary-light);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hidden { display: none !important; }

/* ===== 外刊精读库 ===== */
.filter-bar { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; }
.filter-bar .field { margin-bottom: 0; min-width: 140px; flex: 1; }

.stat-strip { display: flex; gap: 20px; flex-wrap: wrap; font-size: 13px; color: var(--muted); padding: 14px 24px; }
.stat-strip strong { color: var(--text); }

.article-item { margin-bottom: 14px; }
.article-item h3 { margin: 0; font-size: 16px; }
.article-item .tags { display: flex; gap: 6px; flex-wrap: wrap; margin: 8px 0; }
.article-item .meta-line { font-size: 12px; color: var(--muted); display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

.tag {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--muted);
}
.tag.src { background: var(--primary-light); color: #364fc7; border-color: transparent; }
.tag.ctx { background: var(--success-light); color: var(--success); border-color: transparent; }
.tag.lex { background: var(--warning-light); color: #9c5e00; border-color: transparent; }

.btn-xs { padding: 2px 10px; font-size: 12px; }

/* ===== 精读页 ===== */
.para-text {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 16px;
  line-height: 1.9;
  margin: 0;
}
.para-text .w { cursor: pointer; border-radius: 3px; transition: background .12s; }
.para-text .w:hover { background: var(--primary-light); color: var(--primary-dark); }

.para-summary {
  margin-top: 10px;
  font-size: 13px;
  color: #495057;
  background: var(--bg);
  border-radius: 8px;
  padding: 10px 14px;
}

.ds {
  background: #fff3bf;
  border-bottom: 1px dashed #e8a800;
  border-radius: 3px;
  padding: 0 2px;
}
.ds.active { background: #ffe066; }
.ds-btn {
  font-size: 10px;
  vertical-align: super;
  margin-left: 2px;
  padding: 0 6px;
  border-radius: 999px;
  border: 1px solid #e8a800;
  background: #fff9db;
  color: #9c5e00;
  cursor: pointer;
  font-family: inherit;
}
.ds-btn:hover { background: #ffe066; }

.ds-panel {
  margin-top: 10px;
  font-size: 13px;
  background: var(--warning-light);
  border-left: 3px solid #f0b429;
  border-radius: 0 8px 8px 0;
  padding: 12px 14px;
}
.ds-panel .ds-sentence {
  font-family: Georgia, serif;
  color: #5c4400;
}
.ds-row { margin-top: 8px; font-size: 13px; }
.ds-label { display: inline-block; min-width: 34px; font-weight: 700; color: #9c5e00; margin-right: 6px; }
.ds-comps { margin: 4px 0 0; padding-left: 18px; }
.ds-comps li { margin-bottom: 3px; }
.ds-comps code {
  background: #fff;
  border: 1px solid #ffe08a;
  border-radius: 4px;
  padding: 0 4px;
  font-family: Georgia, serif;
  font-size: 12.5px;
}

/* 文章脉络解析 */
.thread-node { border-left: 3px solid var(--primary); padding: 4px 0 4px 14px; margin-bottom: 14px; }
.thread-role { font-weight: 700; font-size: 14px; color: var(--primary-dark); }
.thread-kp { margin: 6px 0; padding-left: 20px; font-size: 14px; }
.thread-kp li { margin-bottom: 4px; }
.thread-logic { font-size: 12.5px; color: var(--muted); }
.qchip {
  display: inline-block;
  margin-left: 6px;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  background: var(--primary);
  border-radius: 5px;
  padding: 0 6px;
  text-decoration: none;
  cursor: pointer;
}
.qchip:hover { background: var(--primary-dark); }

/* 判分后的解题依据锚点 */
.evidence-box {
  margin-top: 8px;
  font-size: 13px;
  background: var(--primary-light);
  border-radius: 8px;
  padding: 8px 12px;
}
.ev-link { color: var(--primary-dark); font-weight: 600; cursor: pointer; }
.ev-link:hover { text-decoration: underline; }
.ev-quote { margin-top: 4px; font-family: Georgia, serif; font-size: 12.5px; color: #495057; }

.flash { animation: flash-bg 1.6s ease-out; }
@keyframes flash-bg { 0% { background: #ffe066; } 100% { background: transparent; } }

.word-pop {
  position: absolute;
  z-index: 300;
  width: 280px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 8px 30px rgba(16,24,40,.18);
  padding: 12px 14px;
  font-size: 13px;
}
.word-pop .wp-word { font-size: 17px; font-weight: 700; }
.word-pop .wp-phonetic { font-size: 12px; color: var(--muted); font-weight: 400; }
.word-pop .wp-pos { display: inline-block; font-size: 11px; color: var(--primary); background: var(--primary-light); border-radius: 4px; padding: 0 6px; margin: 4px 0; }
.word-pop .wp-zh { margin-top: 2px; }
.word-pop .wp-meaning { margin-top: 6px; color: #495057; background: var(--bg); border-radius: 6px; padding: 6px 8px; font-size: 12px; }

.expr-item {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 10px 0;
  border-top: 1px solid var(--border);
}
.expr-item:first-child { border-top: none; }
.expr-en { font-weight: 600; font-size: 14px; }
.expr-zh { font-size: 12.5px; color: var(--muted); }

.word-item.mastered { opacity: .55; }
.word-item.mastered .expr-en { text-decoration: line-through; }

/* ===== 页脚 ===== */
.site-footer {
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  padding: 24px 20px 40px;
}

@media (max-width: 640px) {
  .site-header .inner { gap: 10px; }
  .nav a { padding: 6px 9px; font-size: 13px; }
  .card { padding: 18px; }
}