/* ==========================================================================
   幼儿古诗启蒙乐园 · 日系极简设计系统
   近中性灰白 / 极致留白 / 1px 细线分隔 / 无阴影无渐变 / 2px 圆角
   ========================================================================== */

:root {
  --c-primary: #806760;
  --c-primary-deep: #6c564f;
  --c-accent: #768493;
  --c-accent-deep: #5d6a78;
  --c-cta: #61739e;
  --c-cta-deep: #50618c;
  --c-bg: #fbf9f8;
  --c-surface: #ffffff;
  --c-text: #2c1f1b;
  --c-muted: #7a625c;
  --c-line: #e6dddb;
  --c-primary-soft: #f1ebe7;
  --c-cta-soft: #eef0f6;
  --font: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
  --r: 2px;
  --maxw: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
img, canvas, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, select { font-family: inherit; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(20px, 4vw, 48px); }

/* ==========================================================================
   顶部导航
   ========================================================================== */
.nav { border-bottom: 1px solid var(--c-line); background: var(--c-bg); }
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px; gap: 24px;
}
.brand { display: flex; align-items: baseline; gap: 12px; font-weight: 800; letter-spacing: 0.06em; font-size: 19px; white-space: nowrap; }
.brand em { font-style: normal; font-size: 11px; font-weight: 500; letter-spacing: 0.28em; color: var(--c-muted); }
.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a { font-size: 14px; letter-spacing: 0.05em; color: var(--c-muted); position: relative; padding: 6px 0; transition: color .25s; }
.nav-links a::after {
  content: ''; position: absolute; left: 0; bottom: 0; width: 100%; height: 1px;
  background: var(--c-primary); transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--c-primary); }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-links a.cta-link { color: var(--c-cta); }
.nav-links a.cta-link:hover { color: var(--c-cta-deep); }

/* ==========================================================================
   通用区块
   ========================================================================== */
section.block { padding: clamp(56px, 9vw, 104px) 0; border-top: 1px solid var(--c-line); }
.sec-head { margin-bottom: clamp(32px, 5vw, 56px); max-width: 640px; }
.sec-no { font-size: 12px; letter-spacing: 0.32em; color: var(--c-accent); margin-bottom: 14px; font-weight: 600; }
.sec-title { font-size: clamp(26px, 3.4vw, 40px); font-weight: 800; letter-spacing: 0.03em; line-height: 1.25; }
.sec-desc { margin-top: 14px; color: var(--c-muted); font-size: 15px; max-width: 560px; }

/* ==========================================================================
   按钮
   ========================================================================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid var(--c-cta); background: var(--c-cta); color: #fff;
  border-radius: var(--r); padding: 14px 34px; font-size: 15px; font-weight: 600;
  letter-spacing: 0.08em; transition: background .25s, border-color .25s, transform .15s;
}
.btn:hover { background: var(--c-cta-deep); border-color: var(--c-cta-deep); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn.ghost { background: transparent; color: var(--c-primary); border-color: var(--c-line); }
.btn.ghost:hover { background: var(--c-primary-soft); border-color: var(--c-primary); }
.btn.ghost-cta { background: transparent; color: var(--c-cta); border-color: var(--c-line); }
.btn.ghost-cta:hover { background: var(--c-cta-soft); border-color: var(--c-cta); }
.btn.small { padding: 9px 20px; font-size: 13px; }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }

/* ==========================================================================
   首页 Hero —— 巨大留白
   ========================================================================== */
.hero { padding: clamp(72px, 12vw, 140px) 0 clamp(56px, 9vw, 104px); position: relative; }
.hero-grid {
  display: grid; grid-template-columns: 1fr auto; gap: clamp(40px, 8vw, 120px);
  align-items: center;
}
.kicker {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 13px; font-weight: 600; letter-spacing: 0.34em; color: var(--c-accent);
}
.kicker::before { content: ''; width: 30px; height: 1px; background: var(--c-primary); }
.hero-title {
  margin-top: 28px; font-size: clamp(40px, 6.2vw, 66px); font-weight: 800;
  letter-spacing: 0.04em; line-height: 1.18;
}
.hero-title .thick { color: var(--c-primary); }
.hero-sub { margin-top: 26px; color: var(--c-muted); font-size: clamp(15px, 1.8vw, 17px); max-width: 460px; }
.hero-actions { margin-top: 44px; display: flex; flex-wrap: wrap; gap: 16px; }
.hero-note { margin-top: 30px; font-size: 13px; color: var(--c-accent); letter-spacing: 0.12em; }

/* Hero 竖排诗句 */
.hero-poem {
  border: 1px solid var(--c-line); background: var(--c-surface);
  border-radius: var(--r); padding: 26px 20px;
  writing-mode: vertical-rl; text-orientation: upright;
  letter-spacing: 0.5em; line-height: 2.1;
  font-size: 17px; font-weight: 600; color: var(--c-primary);
  min-height: 300px; text-align: left;
}
.hero-poem small {
  writing-mode: vertical-rl; text-orientation: upright;
  font-size: 11px; font-weight: 500; color: var(--c-muted);
  letter-spacing: 0.4em; margin-bottom: 10px;
}
@media (max-width: 840px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-poem { writing-mode: horizontal-tb; text-orientation: mixed; min-height: 0; max-width: 100%; text-align: left; letter-spacing: 0.12em; line-height: 2; }
  .hero-poem small { writing-mode: horizontal-tb; margin: 0 0 4px; display: block; }
}

/* 标题逐字动画 */
.chars { display: inline-block; }
.char { display: inline-block; opacity: 0; transform: translateY(22px); animation: charIn .6s cubic-bezier(.2,.7,.2,1) forwards; will-change: transform; }
@keyframes charIn { to { opacity: 1; transform: none; } }
.tip-ok { font-size: 13px; color: var(--c-cta); letter-spacing: 0.08em; }
.btn-row { margin-top: 24px; display: flex; gap: 12px; flex-wrap: wrap; }

/* ==========================================================================
   三栏卡片（细线网格）
   ========================================================================== */
.grid3 {
  display: grid; grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--c-line); background: var(--c-line); gap: 1px;
}
.card {
  background: var(--c-bg); padding: clamp(28px, 3.4vw, 40px);
  transition: background .3s ease;
  position: relative;
}
.card:hover { background: var(--c-surface); }
.card .num { font-size: 12px; letter-spacing: 0.3em; color: var(--c-accent); font-weight: 600; }
.card h3 { margin-top: 22px; font-size: 20px; font-weight: 700; letter-spacing: 0.05em; }
.card p { margin-top: 14px; color: var(--c-muted); font-size: 14px; line-height: 1.9; }
.card .more { display: inline-block; margin-top: 24px; font-size: 13px; letter-spacing: 0.1em; color: var(--c-cta); font-weight: 600; position: relative; }
.card .more::after { content: '→'; margin-left: 8px; transition: margin-left .25s; }
.card:hover .more::after { margin-left: 14px; }

/* ==========================================================================
   今日古诗
   ========================================================================== */
.today {
  border: 1px solid var(--c-line); background: var(--c-surface);
  border-radius: var(--r); display: grid;
  grid-template-columns: 1fr auto; gap: 48px; align-items: center;
  padding: clamp(32px, 5vw, 64px);
}
.today-label { font-size: 12px; letter-spacing: 0.34em; color: var(--c-accent); font-weight: 600; }
.today-title { margin-top: 18px; font-size: clamp(28px, 4vw, 44px); font-weight: 800; letter-spacing: 0.04em; }
.today-meta { margin-top: 8px; color: var(--c-muted); font-size: 14px; letter-spacing: 0.1em; }
.today-lines { margin-top: 26px; display: grid; gap: 10px; }
.today-lines div { font-size: clamp(18px, 2.4vw, 24px); font-weight: 600; letter-spacing: 0.14em; color: var(--c-primary); }
.today-actions { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }
.today-aside {
  writing-mode: vertical-rl; text-orientation: upright;
  font-size: 13px; letter-spacing: 0.5em; color: var(--c-muted);
  border-left: 1px solid var(--c-line); padding-left: 26px; align-self: stretch;
  display: flex; align-items: center;
}
@media (max-width: 720px) {
  .today { grid-template-columns: 1fr; }
  .today-aside { display: none; }
}

/* ==========================================================================
   家长中心
   ========================================================================== */
.parent {
  border: 1px solid var(--c-line); background: var(--c-surface);
  border-radius: var(--r);
}
.parent-head {
  display: flex; align-items: baseline; justify-content: space-between;
  padding: 26px 30px; border-bottom: 1px solid var(--c-line);
}
.parent-head h3 { font-size: 18px; font-weight: 700; letter-spacing: 0.06em; }
.parent-head span { font-size: 12px; color: var(--c-muted); letter-spacing: 0.2em; }
.panel-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.panel-cell { padding: 30px; border-right: 1px solid var(--c-line); }
.panel-cell:last-child { border-right: none; }
.panel-cell .label { font-size: 12px; letter-spacing: 0.28em; color: var(--c-accent); font-weight: 600; }
.panel-cell .big { margin-top: 16px; font-size: 40px; font-weight: 800; letter-spacing: 0.02em; line-height: 1; }
.panel-cell .big small { font-size: 14px; font-weight: 500; color: var(--c-muted); letter-spacing: 0.1em; }
.panel-cell .hint { margin-top: 10px; font-size: 13px; color: var(--c-muted); }

/* 计划分段选择 */
.seg { display: flex; border: 1px solid var(--c-line); border-radius: var(--r); overflow: hidden; margin-top: 18px; width: fit-content; }
.seg button {
  border: none; background: var(--c-surface); color: var(--c-muted);
  padding: 8px 20px; font-size: 14px; transition: all .2s; letter-spacing: 0.06em;
}
.seg button + button { border-left: 1px solid var(--c-line); }
.seg button.on { background: var(--c-cta-soft); color: var(--c-cta); font-weight: 700; }

/* 掌握度细条 */
.meter { margin-top: 18px; }
.meter .track { height: 3px; background: var(--c-line); border-radius: var(--r); overflow: hidden; }
.meter .fill { height: 100%; background: var(--c-primary); width: 0; transition: width .8s ease; border-radius: var(--r); }
.meter .cap { margin-top: 10px; font-size: 13px; color: var(--c-muted); letter-spacing: 0.05em; }

/* 学习记录 */
.history { padding: 30px; border-top: 1px solid var(--c-line); }
.history .h-title { font-size: 12px; letter-spacing: 0.28em; color: var(--c-accent); font-weight: 600; }
.history-list { margin-top: 16px; display: grid; gap: 0; }
.history-item {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 12px 0; border-top: 1px solid var(--c-line); font-size: 14px;
}
.history-item:first-child { border-top: none; }
.history-item .d { color: var(--c-muted); }
.history-item .m { color: var(--c-primary); font-weight: 600; }

.parent-foot { padding: 20px 30px; border-top: 1px solid var(--c-line); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.parent-foot .tiny { font-size: 12px; color: var(--c-muted); }

/* ==========================================================================
   古诗列表页
   ========================================================================== */
.tabs { display: flex; flex-wrap: wrap; gap: 10px; border-bottom: 1px solid var(--c-line); padding-bottom: 26px; }
.tab {
  border: 1px solid var(--c-line); background: transparent; color: var(--c-muted);
  border-radius: var(--r); padding: 8px 22px; font-size: 14px; letter-spacing: 0.08em;
  transition: all .2s;
}
.tab:hover { color: var(--c-primary); border-color: var(--c-primary); }
.tab.on { background: var(--c-surface); color: var(--c-primary); border-color: var(--c-primary); font-weight: 700; }

.poem-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--c-line); background: var(--c-line); gap: 1px; margin-top: 34px; }
.poem-card {
  background: var(--c-bg); padding: 26px 28px; min-height: 150px;
  display: flex; flex-direction: column; transition: background .25s;
}
.poem-card:hover { background: var(--c-surface); }
.poem-card .top { display: flex; justify-content: space-between; align-items: flex-start; }
.poem-no { font-size: 11px; letter-spacing: 0.24em; color: var(--c-accent); font-weight: 600; }
.poem-state { font-size: 11px; letter-spacing: 0.16em; padding: 2px 10px; border: 1px solid var(--c-line); border-radius: var(--r); color: var(--c-muted); }
.poem-state.mastered { color: var(--c-cta); border-color: var(--c-cta); background: var(--c-cta-soft); }
.poem-card h3 { margin-top: 14px; font-size: 21px; font-weight: 700; letter-spacing: 0.08em; }
.poem-meta { margin-top: 4px; font-size: 13px; color: var(--c-muted); letter-spacing: 0.1em; }
.poem-preview { margin-top: 14px; font-size: 14px; color: var(--c-primary); letter-spacing: 0.12em; }
.poem-foot { margin-top: auto; padding-top: 16px; display: flex; justify-content: space-between; align-items: center; }
.poem-tags { display: flex; gap: 8px; }
.tag { font-size: 11px; color: var(--c-muted); border: 1px solid var(--c-line); border-radius: var(--r); padding: 1px 8px; letter-spacing: 0.1em; }
.go-learn { font-size: 12px; color: var(--c-cta); font-weight: 600; letter-spacing: 0.08em; transition: margin-left .25s; }
.poem-card:hover .go-learn { margin-left: 4px; }

/* ==========================================================================
   学习页
   ========================================================================== */
.breadcrumb { padding: 26px 0; border-bottom: 1px solid var(--c-line); font-size: 13px; color: var(--c-muted); letter-spacing: 0.1em; }
.breadcrumb a { color: var(--c-cta); }
.breadcrumb a:hover { color: var(--c-cta-deep); }
.learn-head { padding-top: clamp(40px, 6vw, 72px); display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; flex-wrap: wrap; }
.learn-title { font-size: clamp(30px, 4.6vw, 50px); font-weight: 800; letter-spacing: 0.05em; line-height: 1.2; }
.learn-meta { margin-top: 10px; color: var(--c-muted); font-size: 14px; letter-spacing: 0.14em; display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.learn-level { font-size: 12px; border: 1px solid var(--c-line); padding: 1px 10px; border-radius: var(--r); color: var(--c-accent); }

.learn-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(28px, 4vw, 56px); margin-top: 40px; align-items: start; }
@media (max-width: 900px) { .learn-grid { grid-template-columns: 1fr; } }

/* 动画场景 */
.stage { border: 1px solid var(--c-line); background: var(--c-surface); border-radius: var(--r); overflow: hidden; position: relative; }
.stage canvas { width: 100%; height: 320px; display: block; }
.stage-cap {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 18px; border-top: 1px solid var(--c-line);
  font-size: 12px; color: var(--c-muted); letter-spacing: 0.14em;
}
.stage-cap button { border: none; background: none; color: var(--c-cta); font-size: 12px; letter-spacing: 0.14em; padding: 2px 6px; }

/* 诗句卡片 */
.poem-sheet { border: 1px solid var(--c-line); background: var(--c-surface); border-radius: var(--r); }
.sheet-head { padding: 20px 26px; border-bottom: 1px solid var(--c-line); display: flex; justify-content: space-between; align-items: center; }
.sheet-head .t { font-size: 14px; font-weight: 700; letter-spacing: 0.14em; }
.sheet-head .st { font-size: 12px; color: var(--c-muted); letter-spacing: 0.2em; }
.plines { padding: 10px 26px 6px; }
.pline {
  padding: 14px 4px 14px 18px; position: relative; cursor: pointer;
  font-size: clamp(19px, 2.6vw, 24px); letter-spacing: 0.14em; font-weight: 600;
  color: var(--c-text); transition: color .2s; border-bottom: 1px solid var(--c-line);
}
.pline:last-child { border-bottom: none; }
.pline::before {
  content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%) scaleY(0);
  width: 2px; height: 60%; background: var(--c-primary); transition: transform .25s ease;
}
.pline:hover { color: var(--c-primary); }
.pline.active { color: var(--c-primary); }
.pline.active::before { transform: translateY(-50%) scaleY(1); }
.pline .pron { display: block; font-size: 12px; font-weight: 400; color: var(--c-muted); letter-spacing: 0.08em; margin-top: 2px; }
.pline .state-mark { float: right; font-size: 12px; color: var(--c-accent); letter-spacing: 0.1em; opacity: 0; transition: opacity .3s; margin-top: 6px; }
.pline.done .state-mark { opacity: 1; }

.sheet-actions { padding: 18px 26px 26px; border-top: 1px solid var(--c-line); display: flex; flex-wrap: wrap; gap: 12px; }

/* 跟读面板 */
.rec-panel {
  border: 1px solid var(--c-line); border-top: none; background: var(--c-bg);
  padding: 22px 26px; display: none; border-radius: 0 0 var(--r) var(--r);
}
.rec-panel.show { display: block; animation: fadeUp .35s ease; }
.rec-panel .rec-line { font-size: 22px; font-weight: 700; letter-spacing: 0.14em; color: var(--c-primary); }
.rec-panel .rec-tip { margin-top: 8px; font-size: 13px; color: var(--c-muted); }
.rec-status { margin-top: 16px; font-size: 14px; min-height: 24px; color: var(--c-accent); letter-spacing: 0.08em; }
.rec-result { margin-top: 14px; }
.rec-score { font-size: 44px; font-weight: 800; color: var(--c-cta); letter-spacing: 0.02em; line-height: 1; }
.stars { margin-top: 10px; font-size: 22px; letter-spacing: 0.2em; color: var(--c-primary); min-height: 26px; }
.rec-words { margin-top: 8px; font-size: 15px; color: var(--c-muted); letter-spacing: 0.06em; }
.rec-words b { color: var(--c-text); font-weight: 600; }
.rec-msg { margin-top: 10px; font-size: 15px; font-weight: 600; color: var(--c-primary); }
.rec-btns { margin-top: 18px; display: flex; gap: 12px; flex-wrap: wrap; }
.rec-btns .btn { padding: 9px 20px; font-size: 13px; }

/* ==========================================================================
   亲子游戏页
   ========================================================================== */
.game {
  border: 1px solid var(--c-line); background: var(--c-surface);
  border-radius: var(--r); margin-top: 40px;
}
.game-head { padding: 26px 30px; border-bottom: 1px solid var(--c-line); display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 12px; }
.game-head .no { font-size: 12px; letter-spacing: 0.3em; color: var(--c-accent); font-weight: 600; }
.game-head h3 { font-size: 22px; font-weight: 800; letter-spacing: 0.05em; margin-top: 6px; }
.game-head .best { font-size: 13px; color: var(--c-muted); letter-spacing: 0.1em; }
.game-head .best b { color: var(--c-cta); font-weight: 700; }
.game-body { padding: 30px; }
.game-desc { font-size: 14px; color: var(--c-muted); max-width: 560px; }

/* 拼图 */
.puzzle-lines { margin-top: 26px; display: grid; gap: 12px; }
.chip {
  border: 1px solid var(--c-line); background: var(--c-bg); border-radius: var(--r);
  padding: 16px 22px; font-size: clamp(17px, 2.2vw, 20px); font-weight: 600;
  letter-spacing: 0.1em; color: var(--c-text); text-align: left;
  transition: all .2s; position: relative;
}
.chip:hover:not(:disabled) { border-color: var(--c-primary); color: var(--c-primary); }
.chip.used { opacity: .35; pointer-events: none; }
.chip.in-answer { border-color: var(--c-cta); background: var(--c-cta-soft); color: var(--c-cta); }
.answer-zone { margin-top: 26px; border-top: 1px solid var(--c-line); padding-top: 26px; min-height: 80px; }
.answer-zone .az-label { font-size: 12px; letter-spacing: 0.28em; color: var(--c-accent); font-weight: 600; }
.answer-zone .az-chips { margin-top: 16px; display: grid; gap: 12px; }
.az-chips .chip { border-style: dashed; }
.win-msg, .done-msg {
  margin-top: 20px; padding: 18px 22px; border: 1px solid var(--c-cta); background: var(--c-cta-soft);
  color: var(--c-cta); font-weight: 700; letter-spacing: 0.1em; border-radius: var(--r);
  display: none; animation: fadeUp .4s ease;
}
.win-msg.show, .done-msg.show { display: block; }

/* 填字 */
.fill-question { margin-top: 26px; border: 1px solid var(--c-line); background: var(--c-bg); padding: 26px; border-radius: var(--r); }
.fill-line { font-size: clamp(20px, 2.8vw, 26px); letter-spacing: 0.18em; font-weight: 700; }
.fill-line .blank { display: inline-block; min-width: 1.1em; border-bottom: 2px solid var(--c-cta); color: var(--c-cta); text-align: center; margin: 0 2px; }
.fill-meta { margin-top: 8px; font-size: 12px; color: var(--c-muted); letter-spacing: 0.14em; }
.fill-opts { margin-top: 22px; display: flex; gap: 12px; flex-wrap: wrap; }
.opt {
  width: 64px; height: 64px; border: 1px solid var(--c-line); background: var(--c-surface);
  border-radius: var(--r); font-size: 26px; font-weight: 700; color: var(--c-text);
  transition: all .2s;
}
.opt:hover { border-color: var(--c-cta); color: var(--c-cta); transform: translateY(-2px); }
.opt.right { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }
.opt.wrong { border-color: #b98a7c; color: #b98a7c; }
.opt:disabled { cursor: default; }
.fill-progress { margin-top: 22px; }
.fill-progress .fp { font-size: 13px; color: var(--c-muted); letter-spacing: 0.1em; }
.fill-progress .dots { display: flex; gap: 8px; margin-top: 10px; }
.fill-progress .dots i { width: 8px; height: 8px; border-radius: 50%; background: var(--c-line); }
.fill-progress .dots i.on { background: var(--c-primary); }
.fill-progress .dots i.right { background: var(--c-cta); }

/* 连线 */
.match-wrap { margin-top: 26px; display: grid; grid-template-columns: 1fr 1fr; gap: clamp(30px, 6vw, 80px); position: relative; }
.match-col { display: grid; gap: 16px; align-content: start; }
.match-col .mcol-label { font-size: 12px; letter-spacing: 0.28em; color: var(--c-accent); font-weight: 600; }
.match-item {
  border: 1px solid var(--c-line); background: var(--c-bg); border-radius: var(--r);
  padding: 16px 18px; font-size: clamp(15px, 1.9vw, 18px); font-weight: 600;
  letter-spacing: 0.1em; transition: all .2s; text-align: center; position: relative; z-index: 2;
}
.match-item:hover { border-color: var(--c-primary); color: var(--c-primary); }
.match-item.sel { border-color: var(--c-cta); background: var(--c-cta-soft); color: var(--c-cta); }
.match-item.ok { border-color: var(--c-cta); background: var(--c-cta-soft); color: var(--c-cta); cursor: default; }
.match-item.ok::after { content: '✓'; margin-left: 8px; font-size: 14px; }
.match-item.bad { animation: shake .4s; border-color: #b98a7c; }
.mt-line { fill: none; stroke: var(--c-cta); stroke-width: 1.5; stroke-dasharray: 5 4; }
@media (max-width: 640px) { .match-wrap { gap: 20px; } }

/* ==========================================================================
   页脚
   ========================================================================== */
.footer { border-top: 1px solid var(--c-line); padding: 56px 0 40px; }
.foot-grid { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.foot-brand { font-size: 18px; font-weight: 800; letter-spacing: 0.06em; }
.foot-brand p { font-size: 12px; font-weight: 400; color: var(--c-muted); margin-top: 10px; letter-spacing: 0.2em; max-width: 320px; }
.foot-links { display: flex; gap: 34px; }
.foot-links a { font-size: 14px; color: var(--c-muted); letter-spacing: 0.08em; }
.foot-links a:hover { color: var(--c-primary); }
.foot-verse { writing-mode: vertical-rl; text-orientation: upright; font-size: 12px; letter-spacing: 0.4em; color: var(--c-accent); }
@media (max-width: 720px) { .foot-verse { display: none; } }
.copyright { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--c-line); font-size: 12px; color: var(--c-muted); letter-spacing: 0.12em; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* ==========================================================================
   动效
   ========================================================================== */
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes shake { 0%,100%{transform:translateX(0)} 25%{transform:translateX(-6px)} 75%{transform:translateX(6px)} }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.35} }

html.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s ease, transform .7s ease; }
html.js .reveal.in { opacity: 1; transform: none; }
html.js .reveal-d1 { transition-delay: .1s; }
html.js .reveal-d2 { transition-delay: .2s; }
html.js .reveal-d3 { transition-delay: .3s; }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 900px) {
  .grid3 { grid-template-columns: 1fr 1fr; }
  .poem-grid { grid-template-columns: 1fr 1fr; }
  .panel-grid { grid-template-columns: 1fr; }
  .panel-cell { border-right: none; border-bottom: 1px solid var(--c-line); }
  .panel-cell:last-child { border-bottom: none; }
}
@media (max-width: 620px) {
  .grid3 { grid-template-columns: 1fr; }
  .poem-grid { grid-template-columns: 1fr; }
  .nav-inner { height: 58px; }
  .brand { font-size: 16px; }
  .brand em { display: none; }
  .nav-links { gap: 18px; }
  .nav-links a { font-size: 13px; }
  .learn-title { font-size: 30px; }
  .game-body { padding: 20px; }
  .game-head { padding: 20px; }
}