/* ============================================================
   浦漫少儿语文 · 设计系统
   风格锚点：绘本纸感 + 糖果游戏厅
   ============================================================ */
/* 网页楷体（手机无系统楷体时的必备回退；unicode-range 分片按需加载） */
@import url('../assets/fonts/lxgw-wenkai.css');

/* ---------- Tokens ---------- */
:root {
  /* 纸与墨 */
  --paper:        #FFF7EC;
  --paper-deep:   #FBEEDC;
  --paper-tint:   #FFF2E2;
  --card:         #FFFFFF;
  --ink:          #4A3728;
  --ink-soft:     #927A63;
  --ink-faint:    #C4AC90;
  --line:         #F0DFC6;
  --line-strong:  #E5CDA8;

  /* 三馆色系 */
  --pin-main:     #34C7AE;
  --pin-deep:     #1B8A74;
  --pin-soft:     #DDF5F0;
  --pin-tint:     #F0FBF8;

  --han-main:     #FFAF33;
  --han-deep:     #D97F14;
  --han-soft:     #FFEDCC;
  --han-tint:     #FFF7E8;

  --poem-main:    #FF8CA2;
  --poem-deep:    #D64F6B;
  --poem-soft:    #FFE2E9;
  --poem-tint:    #FFF2F5;

  /* 通用强调 */
  --star:         #FFD25E;
  --star-deep:    #E8A81C;
  --grape:        #A78BFA;
  --grape-deep:   #6D4FD0;
  --sky:          #6EC7FF;
  --sky-deep:     #2A8AC7;
  --ok:           #45CE80;
  --ok-deep:      #1E9B58;
  --bad:          #FF7E7E;
  --bad-deep:     #D64545;

  /* 几何 */
  --r-xs:   10px;
  --r-sm:   14px;
  --r-md:   20px;
  --r-lg:   26px;
  --r-xl:   34px;
  --r-pill: 999px;

  --max-w:      1200px;
  --play-stage: 880px;

  /* 贴纸感硬阴影 */
  --stk-1: 0 4px 0 rgba(74, 55, 40, .16);
  --stk-2: 0 6px 0 rgba(74, 55, 40, .18);
  --stk-3: 0 8px 0 rgba(74, 55, 40, .20);
  --pop:   0 14px 32px rgba(74, 55, 40, .13);
  --pop-sm:0 8px 20px rgba(74, 55, 40, .10);

  --font-display: "Yuanti SC", "YouYuan", "PingFang SC", "HarmonyOS Sans SC",
                  "Microsoft YaHei UI", "Microsoft YaHei", "Source Han Sans SC",
                  "Noto Sans SC", sans-serif;
  --font-body:    "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei UI",
                  "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
  /* 网页楷体优先：iOS/Android 通常无 KaiTi，否则会掉成宋体 */
  --font-kai:     "LXGW WenKai", "KaiTi", "STKaiti", "Kaiti SC", "楷体",
                  "AR PL UKai CN", "Noto Serif SC", serif;
  /* 拼音专用：拉丁+声调符号渲染稳定，避免楷体字距忽宽忽窄 */
  --font-pinyin:  "Segoe UI", "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei",
                  "Noto Sans", "Arial Unicode MS", sans-serif;

}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: clip;
}
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 12% 18%, rgba(255, 210, 94, .16) 0 2px, transparent 3px),
    radial-gradient(circle at 78% 8%,  rgba(255, 140, 162, .14) 0 2px, transparent 3px),
    radial-gradient(circle at 42% 62%, rgba(52, 199, 174, .13) 0 2px, transparent 3px),
    radial-gradient(circle at 88% 74%, rgba(167, 139, 250, .13) 0 2px, transparent 3px);
  background-size: 340px 340px, 420px 420px, 380px 380px, 460px 460px;
  background-attachment: fixed;
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: clip;
}
/* flex/grid 子项默认 min-width:auto 会被内容撑破容器 */
.wrap > *, .row > *, .stack > *, .grid-2 > *, .grid-3 > *, .grid-4 > *,
.site-head .inner > *, .hero-inner > * { min-width: 0; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5 { margin: 0; font-family: var(--font-display); font-weight: 800; line-height: 1.25; }
p { margin: 0; }
:focus-visible { outline: 3px solid var(--sky); outline-offset: 3px; border-radius: 8px; }

/* ---------- 排版 ---------- */
.t-hero {
  font-family: var(--font-display);
  font-size: clamp(30px, 5.4vw, 52px);
  font-weight: 800;
  letter-spacing: .02em;
  line-height: 1.18;
}
.t-title {
  font-family: var(--font-display);
  font-size: clamp(23px, 3.4vw, 34px);
  font-weight: 800;
  letter-spacing: .02em;
}
.t-sub {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.4vw, 23px);
  font-weight: 700;
}
.t-body { font-size: clamp(15px, 1.7vw, 17px); }
.t-soft { color: var(--ink-soft); }
.t-tiny { font-size: 13px; color: var(--ink-soft); letter-spacing: .02em; }

/* 糖果字：白描边 + 深投影 */
.candy {
  color: #fff;
  -webkit-text-stroke: 5px var(--ink);
  paint-order: stroke fill;
  text-shadow: 0 5px 0 rgba(74, 55, 40, .28);
  letter-spacing: .04em;
}
.candy-thin {
  -webkit-text-stroke: 3px var(--ink);
  text-shadow: 0 3px 0 rgba(74, 55, 40, .25);
}
.candy-pin  { color: var(--pin-main); }
.candy-han  { color: var(--han-main); }
.candy-poem { color: var(--poem-main); }
.candy-star { color: var(--star); }

/* ---------- 布局容器 ---------- */
.wrap {
  width: min(100% - 32px, var(--max-w));
  margin-inline: auto;
}
.wrap-narrow { width: min(100% - 32px, 860px); margin-inline: auto; }
.section { padding: clamp(28px, 4.5vw, 52px) 0; }
.stack   { display: grid; gap: 16px; }
.stack-lg{ display: grid; gap: 26px; }
.row     { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.row-between { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between; }
.center   { text-align: center; }
.grow    { flex: 1 1 auto; }

.grid-2 { display: grid; gap: 18px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { display: grid; gap: 18px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { display: grid; gap: 16px; grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 960px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 卡片（贴纸感） ---------- */
.card {
  background: var(--card);
  border: 2.5px solid var(--line-strong);
  border-radius: var(--r-lg);
  box-shadow: var(--stk-1), var(--pop-sm);
  padding: 20px;
  position: relative;
}
.card-soft { background: var(--paper-tint); }
.card-flat { box-shadow: none; }
.card-hover { transition: transform .18s ease, box-shadow .18s ease; }
.card-hover:hover { transform: translateY(-5px); box-shadow: var(--stk-2), var(--pop); }

.card-pin  { border-color: var(--pin-main);  background: var(--pin-tint); }
.card-han  { border-color: var(--han-main);  background: var(--han-tint); }
.card-poem { border-color: var(--poem-main); background: var(--poem-tint); }

/* 大色块入口卡 */
.hall-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-xl);
  border: 3px solid var(--ink);
  padding: 26px 24px 22px;
  min-height: 232px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--stk-2);
  transition: transform .2s cubic-bezier(.2,.9,.3,1.3), box-shadow .2s ease;
  cursor: pointer;
}
.hall-card:hover { transform: translateY(-8px) rotate(-.6deg); box-shadow: var(--stk-3), var(--pop); }
.hall-card:active { transform: translateY(-2px); }
.hall-card .hall-emoji {
  font-size: clamp(46px, 7vw, 64px);
  line-height: 1;
  filter: drop-shadow(0 4px 0 rgba(74,55,40,.18));
}
.hall-card .hall-name {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 32px);
  font-weight: 800;
  color: var(--ink);
}
.hall-card .hall-desc { color: var(--ink); opacity: .78; font-size: 15px; line-height: 1.55; }
.hall-card .hall-go {
  margin-top: auto;
  align-self: flex-start;
  background: var(--ink);
  color: #fff;
  border-radius: var(--r-pill);
  padding: 9px 20px;
  font-weight: 800;
  font-size: 15px;
}
.hall-pin  { background: linear-gradient(155deg, var(--pin-soft),  var(--pin-main)  120%); }
.hall-han  { background: linear-gradient(155deg, var(--han-soft),  var(--han-main)  120%); }
.hall-poem { background: linear-gradient(155deg, var(--poem-soft), var(--poem-main) 120%); }
.hall-card .deco {
  position: absolute; right: -18px; bottom: -22px;
  font-size: 120px; opacity: .18; pointer-events: none; transform: rotate(-12deg);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  padding: 0 26px;
  border-radius: var(--r-md);
  border: 2.5px solid var(--ink);
  background: #fff;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  cursor: pointer;
  box-shadow: var(--stk-1);
  transition: transform .12s ease, box-shadow .12s ease, background .15s ease;
  user-select: none;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--stk-2); }
.btn:active { transform: translateY(3px); box-shadow: 0 1px 0 rgba(74,55,40,.16); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

.btn-lg { min-height: 72px; padding: 0 36px; font-size: 20px; border-radius: var(--r-lg); }
.btn-sm { min-height: 42px; padding: 0 18px; font-size: 15px; }

.btn-primary { background: var(--star); color: var(--ink); }
.btn-pin     { background: var(--pin-main);  color: #fff; }
.btn-han     { background: var(--han-main);  color: #fff; }
.btn-poem    { background: var(--poem-main); color: #fff; }
.btn-grape   { background: var(--grape);     color: #fff; }
.btn-ghost   { background: transparent; border-color: var(--line-strong); box-shadow: none; }
.btn-ghost:hover { background: var(--paper-deep); box-shadow: none; transform: none; }
.btn-block   { width: 100%; }

/* 游戏选项按钮：≥72px（铁律） */
.opt {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 72px;
  padding: 12px 18px;
  border-radius: var(--r-md);
  border: 3px solid var(--ink);
  background: #fff;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.6vw, 25px);
  cursor: pointer;
  box-shadow: var(--stk-1);
  transition: transform .12s ease, box-shadow .12s ease, background .15s ease;
  line-height: 1.3;
}
.opt:hover { transform: translateY(-3px); box-shadow: var(--stk-2); }
.opt:active { transform: translateY(2px); box-shadow: 0 1px 0 rgba(74,55,40,.16); }

/* 状态类对任意元素生效（卡片/空位/选项通用）——必须压过内联背景 */
.is-ok   { background: var(--ok)   !important; color: #fff !important; border-color: var(--ok-deep)   !important; }
.is-bad  { background: var(--bad)  !important; color: #fff !important; border-color: var(--bad-deep)  !important; animation: shake .4s; }
.is-dim  { opacity: .42 !important; pointer-events: none !important; }
.is-picked { background: var(--grape) !important; color: #fff !important; border-color: var(--grape-deep) !important; }

/* ---------- 徽章 / 药丸 ---------- */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: var(--r-pill);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .03em;
  background: var(--paper-deep);
  color: var(--ink-soft);
  border: 2px solid var(--line-strong);
}
.pill-pin  { background: var(--pin-soft);  color: var(--pin-deep);  border-color: var(--pin-main); }
.pill-han  { background: var(--han-soft);  color: var(--han-deep);  border-color: var(--han-main); }
.pill-poem { background: var(--poem-soft); color: var(--poem-deep); border-color: var(--poem-main); }
.pill-star { background: var(--star);      color: var(--ink);       border-color: var(--star-deep); }
.pill-ok   { background: var(--ok);        color: #fff;             border-color: var(--ok-deep); }
.pill-bad  { background: var(--bad);       color: #fff;             border-color: var(--bad-deep); }
.pill-grape{ background: var(--grape);     color: #fff;             border-color: var(--grape-deep); }

/* ---------- 虚线空位（铁律：待填用虚线卡） ---------- */
.slot {
  border: 3px dashed var(--line-strong);
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, .55);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-faint);
  font-family: var(--font-display);
  font-weight: 800;
}
.slot-question { font-size: 34px; }

/* ---------- 田字格 ---------- */
.tian {
  position: relative;
  background: #fff;
  border: 3px solid var(--ink);
  border-radius: var(--r-sm);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.tian::before, .tian::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.tian::before {
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cline x1='50' y1='1' x2='50' y2='99' stroke='%23E88A9B' stroke-width='1.15' stroke-dasharray='5 3.5'/%3E%3Cline x1='1' y1='50' x2='99' y2='50' stroke='%23E88A9B' stroke-width='1.15' stroke-dasharray='5 3.5'/%3E%3C/svg%3E") center / 100% 100% no-repeat;
}
.tian::after {
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cline x1='3' y1='3' x2='97' y2='97' stroke='%23E88A9B' stroke-width='1' stroke-dasharray='5 3.5'/%3E%3Cline x1='97' y1='3' x2='3' y2='97' stroke='%23E88A9B' stroke-width='1' stroke-dasharray='5 3.5'/%3E%3C/svg%3E") center / 100% 100% no-repeat;
}
.tian .tian-char {
  position: relative;
  z-index: 1;
  font-family: var(--font-kai);
  font-size: clamp(52px, 12vw, 96px);
  font-weight: 400;
  font-synthesis: none;
  color: var(--ink);
  line-height: 1;
}
.tian .tian-char.ghost { color: #F5D9C4; }

/* ---------- 进度条 ---------- */
.bar {
  height: 16px;
  background: var(--paper-deep);
  border-radius: var(--r-pill);
  border: 2px solid var(--line-strong);
  overflow: hidden;
}
.bar > i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--star), var(--han-main));
  border-radius: var(--r-pill);
  transition: width .45s cubic-bezier(.2,.8,.3,1);
}
.bar-pin  > i { background: linear-gradient(90deg, var(--pin-main), var(--sky)); }
.bar-han  > i { background: linear-gradient(90deg, var(--han-main), var(--star)); }
.bar-poem > i { background: linear-gradient(90deg, var(--poem-main), var(--grape)); }

/* ---------- 星星 / 成长 ---------- */
.stars { display: inline-flex; gap: 3px; font-size: 20px; letter-spacing: 1px; }
.stars .on  { color: var(--star-deep); filter: drop-shadow(0 2px 0 rgba(74,55,40,.2)); }
.stars .off { color: var(--line-strong); }

.badge-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 18px 12px;
  border-radius: var(--r-lg);
  background: var(--card);
  border: 2.5px solid var(--line-strong);
  box-shadow: var(--stk-1);
  text-align: center;
}
.badge-tile .bi {
  width: 64px; height: 64px;
  border-radius: 20px;
  display: grid; place-items: center;
  font-size: 34px;
  background: var(--paper-deep);
}
.badge-tile.locked { opacity: .48; filter: grayscale(1); }

/* ---------- 游戏舞台 ---------- */
.play-stage {
  width: min(100% - 24px, var(--play-stage));
  margin-inline: auto;
}
@media (min-width: 960px) { :root { --play-stage: 1040px; } }

.stage {
  background: var(--card);
  border: 3px solid var(--ink);
  border-radius: var(--r-xl);
  box-shadow: var(--stk-2), var(--pop);
  padding: clamp(18px, 3vw, 32px);
  position: relative;
  overflow: hidden;
}
.stage-pin  { background: var(--pin-tint);  border-color: var(--pin-deep); }
.stage-han  { background: var(--han-tint);  border-color: var(--han-deep); }
.stage-poem { background: var(--poem-tint); border-color: var(--poem-deep); }

.stage-top {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

/* ---------- 动画 ---------- */
@keyframes shake {
  0%,100% { transform: translateX(0); }
  20%  { transform: translateX(-9px); }
  40%  { transform: translateX(8px); }
  60%  { transform: translateX(-6px); }
  80%  { transform: translateX(4px); }
}
@keyframes pop-in {
  from { transform: scale(.86); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}
@keyframes float-y {
  0%,100% { transform: translateY(0); }
  50%     { transform: translateY(-9px); }
}
@keyframes spin-slow { to { transform: rotate(360deg); } }
@keyframes burst {
  from { transform: scale(.4); opacity: 1; }
  to   { transform: scale(2.2); opacity: 0; }
}
.pop-in  { animation: pop-in .32s cubic-bezier(.2,.9,.3,1.3) both; }
.float-y { animation: float-y 3.4s ease-in-out infinite; }
.shake   { animation: shake .42s; }

/* 彩带粒子 */
.confetti {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  overflow: hidden;
}
.confetti i {
  position: absolute;
  top: -20px;
  width: 11px; height: 15px;
  border-radius: 3px;
  animation: fall linear forwards;
}
@keyframes fall {
  to { transform: translateY(110vh) rotate(720deg); opacity: .15; }
}

/* ---------- 头部导航 ---------- */
.site-head {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 247, 236, .92);
  backdrop-filter: blur(12px);
  border-bottom: 3px solid var(--line-strong);
}
.site-head .inner {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 70px;
  padding: 10px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.5vw, 23px);
  letter-spacing: .02em;
}
.brand .logo {
  width: 44px; height: 44px;
  border-radius: 13px;
  object-fit: cover;
  display: block;
  background: var(--star);
  border: 2.5px solid var(--ink);
  box-shadow: var(--stk-1);
  flex: none;
}
.nav {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.nav a {
  padding: 9px 16px;
  border-radius: var(--r-pill);
  font-weight: 800;
  font-size: 15px;
  color: var(--ink-soft);
  border: 2px solid transparent;
  transition: background .15s, color .15s, border-color .15s;
}
.nav a:hover { background: var(--paper-deep); color: var(--ink); }
.nav a.on { background: var(--ink); color: #fff; border-color: var(--ink); }
.nav a.on.pin  { background: var(--pin-main);  border-color: var(--pin-deep); }
.nav a.on.han  { background: var(--han-main);  border-color: var(--han-deep); }
.nav a.on.poem { background: var(--poem-main); border-color: var(--poem-deep); }

@media (max-width: 780px) {
  .site-head .inner { flex-wrap: wrap; }
  .nav { order: 3; width: 100%; overflow-x: auto; flex-wrap: nowrap; padding-bottom: 2px; }
  .nav a { flex: none; }
}

/* 头像 / 账号 */
.avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 2.5px solid var(--ink);
  background: var(--grape);
  color: #fff;
  display: grid; place-items: center;
  font-size: 20px;
  box-shadow: var(--stk-1);
  cursor: pointer;
  flex: none;
}

/* ---------- 页脚 ---------- */
.site-foot {
  margin-top: clamp(38px, 6vw, 70px);
  background: var(--paper-deep);
  border-top: 3px solid var(--line-strong);
  padding: 30px 0 40px;
  color: var(--ink-soft);
  font-size: 13.5px;
  line-height: 1.9;
}
.site-foot .foot-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  color: var(--ink);
  margin-bottom: 6px;
}
.site-foot a { text-decoration: underline; text-underline-offset: 3px; }
.site-foot a:hover { color: var(--ink); }
.site-foot .footer-home { font-weight: 700; }
.site-foot .footer-note { font-size: 12.5px; opacity: .9; }
.site-foot .gongan-badge { white-space: nowrap; }
.site-foot .beian-icon,
.site-foot .gongan-badge img {
  display: inline-block;
  height: 15px;
  width: auto;
  vertical-align: -3px;
  margin-right: 4px;
}
.foot-sep { display: inline-block; margin: 0 8px; opacity: .55; }

/* ---------- 通用小件 ---------- */
.divider {
  height: 3px;
  background: repeating-linear-gradient(90deg, var(--line-strong) 0 12px, transparent 12px 24px);
  border: 0;
  margin: 26px 0;
  border-radius: 2px;
}
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; }

.icon-chip {
  width: 58px; height: 58px;
  border-radius: 18px;
  display: grid; place-items: center;
  font-size: 31px;
  background: var(--card);
  border: 2.5px solid var(--line-strong);
  box-shadow: var(--stk-1);
  flex: none;
}

/* 表单 */
.field { display: grid; gap: 7px; }
.field label { font-weight: 800; font-size: 14.5px; color: var(--ink-soft); letter-spacing: .02em; }
.field input, .field select {
  min-height: 52px;
  padding: 0 16px;
  border-radius: var(--r-md);
  border: 2.5px solid var(--line-strong);
  background: #fff;
  font-size: 16px;
  width: 100%;
}
.field input:focus, .field select:focus {
  outline: none;
  border-color: var(--grape);
  box-shadow: 0 0 0 4px rgba(167, 139, 250, .22);
}

/* Tabs */
.tabs {
  display: flex;
  gap: 8px;
  background: var(--paper-deep);
  padding: 6px;
  border-radius: var(--r-md);
  border: 2.5px solid var(--line-strong);
}
.tabs button {
  flex: 1;
  min-height: 48px;
  border: 0;
  background: transparent;
  border-radius: var(--r-sm);
  font-weight: 800;
  font-size: 15.5px;
  cursor: pointer;
  color: var(--ink-soft);
}
.tabs button.on {
  background: #fff;
  color: var(--ink);
  box-shadow: var(--stk-1);
}

/* 浮层 */
.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(74, 55, 40, .45);
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 18px;
}
.modal {
  width: min(100%, 520px);
  background: var(--card);
  border: 3px solid var(--ink);
  border-radius: var(--r-xl);
  box-shadow: var(--stk-2), var(--pop);
  padding: 26px;
  max-height: 88vh;
  overflow: auto;
  animation: pop-in .28s cubic-bezier(.2,.9,.3,1.3) both;
}

/* 顶部彩带条 */
.ribbon {
  height: 8px;
  background: linear-gradient(90deg,
    var(--pin-main) 0 25%, var(--han-main) 25% 50%,
    var(--poem-main) 50% 75%, var(--grape) 75% 100%);
}

/* 无障碍 */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* 楷体（汉字/古诗正文） */
.kai { font-family: var(--font-kai); }