/* ==========================================================================
   BLOCKTOON · 方块漫画 —— 设计系统
   绘本纸感 × 方块(voxel)硬边 UI × 明快草绿
   ========================================================================== */

:root {
  /* 纸与墨 */
  --paper: #FBF4E2;
  --paper-deep: #F4EACF;
  --paper-card: #FFFDF6;
  --ink: #22301B;
  --ink-80: rgba(34, 48, 27, .8);
  --ink-soft: #5C6B50;

  /* 世界色 */
  --grass: #56B93C;
  --grass-deep: #3E9427;
  --leaf: #8CD96A;
  --sky: #A9E4F7;
  --sky-deep: #7FD0EE;
  --dirt: #9A6B3F;
  --gold: #FFC531;
  --tnt: #E8502B;
  --diamond: #3EC9BC;
  --ender: #9B59D0;
  --night: #17251D;

  /* 结构 */
  --line: 3px solid var(--ink);
  --shadow-s: .25rem .25rem 0 var(--ink);
  --shadow-m: .45rem .45rem 0 var(--ink);
  --shadow-l: .7rem .7rem 0 var(--ink);

  /* 字体 */
  --font-display: 'ZCOOL QingKe HuangYou', 'Noto Sans SC', sans-serif;
  --font-body: 'Noto Sans SC', -apple-system, sans-serif;
  --font-pixel: 'Press Start 2P', monospace;
  --font-hand: 'Patrick Hand', 'Comic Sans MS', cursive;

  --wrap: 76rem;
}

/* ---------- 基础 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--gold); color: var(--ink); }

::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { background: var(--paper-deep); }
::-webkit-scrollbar-thumb { background: var(--grass); border: 2px solid var(--paper-deep); }
::-webkit-scrollbar-thumb:hover { background: var(--grass-deep); }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

:focus-visible { outline: 3px dashed var(--tnt); outline-offset: 3px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 1.5rem; }

/* ---------- 通用元件 ---------- */
.px-tag {
  display: inline-flex; align-items: center; gap: .5em;
  font-family: var(--font-pixel);
  font-size: .55rem; letter-spacing: .08em;
  padding: .55em .9em;
  border: 2px solid var(--ink);
  background: var(--paper-card);
  box-shadow: .2rem .2rem 0 var(--ink);
  text-transform: uppercase;
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55em;
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: .04em;
  padding: .8em 1.6em;
  border: var(--line);
  background: var(--paper-card);
  color: var(--ink);
  box-shadow: var(--shadow-s);
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
  user-select: none;
}
.btn:hover { transform: translate(-2px, -2px); box-shadow: .55rem .55rem 0 var(--ink); }
.btn:active { transform: translate(3px, 3px); box-shadow: .1rem .1rem 0 var(--ink); }
.btn--grass { background: var(--grass); color: #fff; text-shadow: 1px 2px 0 rgba(0,0,0,.18); }
.btn--grass:hover { background: var(--grass-deep); }
.btn--gold { background: var(--gold); }
.btn--ghost { background: transparent; box-shadow: none; border-color: transparent; }
.btn--ghost:hover { border-color: var(--ink); background: var(--paper-card); box-shadow: var(--shadow-s); }

.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-bottom: 2.2rem; }
.sec-head__left { display: flex; flex-direction: column; gap: .6rem; align-items: flex-start; }
.sec-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.6vw, 2.7rem);
  line-height: 1.15;
  letter-spacing: .02em;
}
.sec-title em { font-style: normal; color: var(--grass-deep); }
.sec-more { font-weight: 700; font-size: .92rem; border-bottom: 3px solid var(--gold); padding-bottom: .15em; transition: color .15s; white-space: nowrap; }
.sec-more:hover { color: var(--grass-deep); }

/* 滚动进场 */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; transition-delay: var(--d, 0s); }
.reveal.is-in { opacity: 1; transform: none; }

/* ==========================================================================
   顶部公告条 + 导航
   ========================================================================== */
.topbar {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-pixel);
  font-size: .55rem;
  letter-spacing: .1em;
  padding: .6rem 0;
  overflow: hidden;
  position: relative;
  z-index: 60;
}
.topbar__inner { display: flex; justify-content: center; gap: 2.5rem; white-space: nowrap; }
.topbar b { color: var(--gold); font-weight: 400; }

.nav {
  position: sticky; top: 0; z-index: 50;
  background: var(--paper);
  border-bottom: var(--line);
  transition: box-shadow .2s ease;
}
.nav.is-scrolled { box-shadow: 0 .45rem 0 rgba(34,48,27,.12); }
.nav__inner { display: flex; align-items: center; gap: 2.2rem; height: 4.6rem; }

.logo { display: flex; align-items: center; gap: .7rem; margin-right: auto; }
.logo__cube { width: 2.4rem; height: 2.4rem; image-rendering: pixelated; filter: drop-shadow(3px 3px 0 rgba(34,48,27,.9)); }
.logo__text { font-family: var(--font-display); font-size: 1.55rem; letter-spacing: .03em; line-height: 1; }
.logo__text small { display: block; font-family: var(--font-pixel); font-size: .42rem; letter-spacing: .32em; color: var(--grass-deep); margin-top: .35em; }

.nav__links { display: flex; gap: 1.6rem; font-weight: 700; font-size: .95rem; }
.nav__links a { position: relative; padding: .3em 0; }
.nav__links a::after {
  content: ''; position: absolute; left: 0; bottom: -4px; height: 4px; width: 0;
  background: var(--grass); transition: width .18s ease;
}
.nav__links a:hover::after, .nav__links a.is-active::after { width: 100%; }

.nav__cta { font-size: 1rem; padding: .55em 1.2em; }

.nav__burger { display: none; width: 2.6rem; height: 2.6rem; border: var(--line); background: var(--paper-card); box-shadow: var(--shadow-s); flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.nav__burger span { width: 1.2rem; height: 3px; background: var(--ink); transition: transform .2s, opacity .2s; }
.nav__burger.is-open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav__burger.is-open span:nth-child(2) { opacity: 0; }
.nav__burger.is-open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  background:
    linear-gradient(180deg, var(--sky) 0%, #C9EEF9 46%, var(--paper) 100%);
  border-bottom: var(--line);
  overflow: hidden;
}
.hero__inner {
  position: relative; z-index: 3;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
  gap: 3.5rem;
  align-items: center;
  padding-block: 4.5rem 5.5rem; /* 只设上下，保留 .wrap 的左右内边距 */
}

.hero__kicker { display: flex; align-items: center; gap: .8rem; margin-bottom: 1.4rem; }
.hero__kicker .px-tag { background: var(--gold); }

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.9rem, 6.2vw, 4.9rem);
  line-height: 1.06;
  letter-spacing: .015em;
  margin-bottom: .35em;
}
.hero__title .stroke {
  color: var(--paper-card);
  text-shadow:
    3px 3px 0 var(--ink), -2px -2px 0 var(--ink), 2px -2px 0 var(--ink),
    -2px 2px 0 var(--ink), 0 3px 0 var(--ink), 3px 0 0 var(--ink);
}
.hero__title .grass-word { color: var(--grass-deep); }

.hero__en {
  font-family: var(--font-pixel);
  font-size: .62rem; letter-spacing: .3em;
  color: var(--ink-soft);
  margin-bottom: 1.6rem;
}

.hero__desc { max-width: 34em; font-size: 1.06rem; color: var(--ink-80); margin-bottom: 2.1rem; }
.hero__desc b { color: var(--grass-deep); }

.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 2.6rem; }
.hero__actions .btn { font-size: 1.25rem; }

.hero__stats { display: flex; gap: 2.6rem; }
.stat { display: flex; flex-direction: column; gap: .15rem; }
.stat__num { font-family: var(--font-display); font-size: 1.75rem; line-height: 1; }
.stat__num sup { font-size: .8rem; color: var(--tnt); margin-left: .15em; }
.stat__label { font-size: .78rem; color: var(--ink-soft); font-weight: 500; letter-spacing: .05em; }

/* hero 右侧画框 */
.hero__art { position: relative; }
.hero__frame {
  position: relative;
  border: 4px solid var(--ink);
  box-shadow: var(--shadow-l);
  background: var(--paper-card);
  padding: .65rem;
  transform: rotate(1.2deg);
  transition: transform .3s ease;
}
.hero__frame:hover { transform: rotate(0deg) scale(1.01); }
.hero__frame img { border: 2px solid var(--ink); aspect-ratio: 2 / 1; object-fit: cover; width: 100%; }
.hero__frame figcaption {
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-pixel); font-size: .5rem; letter-spacing: .12em;
  padding: .7rem .3rem .25rem; color: var(--ink-soft);
}
.hero__frame figcaption b { color: var(--tnt); font-weight: 400; }

/* 漂浮方块 */
.cube { position: absolute; image-rendering: pixelated; filter: drop-shadow(4px 5px 0 rgba(34,48,27,.25)); z-index: 2; animation: bob 4.2s ease-in-out infinite; }
.cube--1 { width: 3.4rem; top: -1.8rem; right: -1.4rem; animation-delay: .3s; }
.cube--2 { width: 2.6rem; bottom: -1.2rem; left: -1.6rem; animation-delay: 1.4s; }
.cube--3 { width: 2.1rem; top: 42%; left: -2.6rem; animation-delay: 2.2s; }
@keyframes bob { 0%,100% { transform: translateY(0) rotate(-2deg); } 50% { transform: translateY(-12px) rotate(2.5deg); } }

/* 像素云 */
.px-cloud { position: absolute; z-index: 1; opacity: .95; animation: drift linear infinite; }
.px-cloud--a { width: 7.5rem; top: 3.2rem; left: 6%; animation-duration: 46s; }
.px-cloud--b { width: 5rem; top: 7.5rem; right: 12%; animation-duration: 60s; animation-delay: -22s; }
.px-cloud--c { width: 4rem; top: 1.6rem; left: 48%; animation-duration: 52s; animation-delay: -35s; opacity: .7; }
@keyframes drift { from { transform: translateX(-8vw); } to { transform: translateX(108vw); } }

/* hero 底部草地锯齿 */
.hero__ground { position: absolute; left: 0; right: 0; bottom: 0; height: 2.4rem; z-index: 2;
  background:
    repeating-linear-gradient(90deg, var(--grass) 0 24px, var(--grass-deep) 24px 48px);
}
.hero__ground::before { content: ''; position: absolute; top: -12px; left: 0; right: 0; height: 12px;
  background:
    repeating-linear-gradient(90deg, transparent 0 12px, var(--grass) 12px 24px, transparent 24px 36px, var(--grass-deep) 36px 48px);
}

/* ==========================================================================
   跑马灯
   ========================================================================== */
.marquee {
  background: var(--ink); color: var(--paper);
  border-bottom: var(--line);
  overflow: hidden; padding: .85rem 0;
}
.marquee__track { display: flex; gap: 3rem; white-space: nowrap; width: max-content; animation: marquee 26s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__track span { font-family: var(--font-display); font-size: 1.05rem; letter-spacing: .06em; display: flex; align-items: center; gap: 3rem; }
.marquee__track .dia { color: var(--diamond); font-size: .8em; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ==========================================================================
   分级体系
   ========================================================================== */
.section { padding: 5.2rem 0; }

.levels-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.8rem; }
.level {
  position: relative;
  border: var(--line); background: var(--paper-card); box-shadow: var(--shadow-s);
  display: flex; flex-direction: column;
  transition: transform .15s ease, box-shadow .15s ease;
}
.level:hover { transform: translate(-3px,-3px); box-shadow: var(--shadow-m); }
.level__bar { height: .8rem; border-bottom: var(--line); }
.level--1 .level__bar { background: var(--grass); }
.level--2 .level__bar { background: var(--gold); }
.level--3 .level__bar { background: var(--ender); }
.level__body { padding: 1.7rem 1.6rem 1.8rem; display: flex; flex-direction: column; gap: 1.05rem; flex: 1; }
.level__head { display: flex; align-items: baseline; gap: .8rem; }
.level__code { font-family: var(--font-pixel); font-size: 1.3rem; }
.level--1 .level__code { color: var(--grass-deep); }
.level--2 .level__code { color: #C58A00; }
.level--3 .level__code { color: var(--ender); }
.level__name { font-family: var(--font-display); font-size: 1.45rem; line-height: 1.1; }
.level__name small { display: block; font-family: var(--font-pixel); font-size: .44rem; letter-spacing: .16em; color: var(--ink-soft); margin-top: .4em; }
.level__specs { list-style: none; display: flex; flex-direction: column; gap: .5rem; font-size: .88rem; color: var(--ink-80); }
.level__specs li { display: flex; gap: .55em; align-items: baseline; }
.level__specs b { color: var(--ink); }
.level__specs .sq { width: .5em; height: .5em; flex-shrink: 0; background: var(--grass); transform: translateY(-.08em); }
.level--2 .level__specs .sq { background: var(--gold); }
.level--3 .level__specs .sq { background: var(--ender); }
.level__match {
  font-size: .72rem; font-weight: 700; letter-spacing: .04em;
  color: var(--ink-soft); border: 2px dashed rgba(34,48,27,.3);
  padding: .45em .8em; align-self: flex-start;
}
.level__sample {
  margin-top: auto; position: relative;
  background: var(--paper); border: 2.5px solid var(--ink); border-radius: 1em;
  padding: .75em 1em .65em;
  font-family: var(--font-hand); font-size: 1.12rem; line-height: 1.35;
}
.level__sample::after {
  content: ''; position: absolute; bottom: -0.48em; left: 1.6em;
  width: .8em; height: .8em; background: var(--paper);
  border-right: 2.5px solid var(--ink); border-bottom: 2.5px solid var(--ink);
  transform: rotate(45deg);
}
.level__sample small { display: block; font-family: var(--font-body); font-size: .68rem; color: var(--ink-soft); margin-top: .3em; }

/* ==========================================================================
   读得懂的秘密（解剖演示）
   ========================================================================== */
.section--how { background: var(--paper-deep); border-top: var(--line); border-bottom: var(--line); }
.how-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr); gap: 3rem; align-items: center; }

.how-stage { position: relative; }
.how-stage__frame {
  position: relative;
  border: 4px solid var(--ink); box-shadow: var(--shadow-l);
  background: var(--paper-card); padding: .55rem;
  transform: rotate(-1deg);
}
.how-stage__inner { position: relative; overflow: hidden; border: 2px solid var(--ink); }
.how-stage__inner img { width: 100%; display: block; }

.sp-bubble {
  position: absolute; z-index: 3;
  max-width: 46%;
  background: #fff; border: 2.5px solid var(--ink); border-radius: 1.1em;
  padding: .5em .85em .45em;
  font-family: var(--font-hand); font-size: clamp(.78rem, 1.5vw, 1.05rem); line-height: 1.3;
  box-shadow: .22rem .22rem 0 rgba(34,48,27,.8);
}
.sp-bubble::after {
  content: ''; position: absolute; bottom: -0.44em; left: 1.4em;
  width: .75em; height: .75em; background: #fff;
  border-right: 2.5px solid var(--ink); border-bottom: 2.5px solid var(--ink);
  transform: rotate(45deg);
}
.sp-bubble--flip::after { left: auto; right: 1.4em; }
.sp-bubble small { display: block; font-family: var(--font-body); font-weight: 500; font-size: .64em; color: var(--ink-soft); margin-top: .25em; }
.sp-bubble .tap { border-bottom: 2.5px dotted var(--tnt); cursor: pointer; }

.wordcard {
  position: absolute; z-index: 4;
  background: var(--ink); color: var(--paper);
  border: 2.5px solid var(--ink); box-shadow: .25rem .25rem 0 rgba(34,48,27,.45);
  padding: .6em .9em; font-size: clamp(.66rem, 1.2vw, .82rem); line-height: 1.45;
  animation: wordpop 2.6s ease-in-out infinite alternate;
}
.wordcard b { color: var(--gold); font-size: 1.15em; }
.wordcard .ipa { color: rgba(251,244,226,.65); margin-left: .5em; }
.wordcard .spk { color: var(--diamond); margin-left: .4em; }
@keyframes wordpop { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }

.how-points { display: flex; flex-direction: column; gap: 1.5rem; }
.how-point { display: flex; gap: 1.1rem; align-items: flex-start; }
.how-point__num {
  font-family: var(--font-pixel); font-size: .72rem; flex-shrink: 0;
  background: var(--ink); color: var(--gold);
  padding: .55em .6em; border: 2px solid var(--ink); box-shadow: .2rem .2rem 0 rgba(34,48,27,.35);
}
.how-point h3 { font-family: var(--font-display); font-size: 1.3rem; margin-bottom: .3rem; }
.how-point p { font-size: .9rem; color: var(--ink-soft); line-height: 1.75; }
.how-point p b { color: var(--grass-deep); }

/* L1/L2 同格切换演示 */
.how-toggle {
  border: var(--line); background: var(--paper-card); box-shadow: var(--shadow-s);
  padding: 1.2rem 1.3rem 1.3rem; margin-top: .4rem;
}
.how-toggle__tabs { display: flex; gap: .6rem; margin-bottom: .9rem; }
.how-toggle__tab {
  font-family: var(--font-pixel); font-size: .56rem;
  padding: .6em .9em; border: 2.5px solid var(--ink);
  background: var(--paper); box-shadow: .18rem .18rem 0 var(--ink);
  transition: transform .1s, box-shadow .1s, background .1s, color .1s;
}
.how-toggle__tab:hover { transform: translate(-1px,-1px); }
.how-toggle__tab.is-on { background: var(--grass); color: #fff; }
.how-toggle__line { font-family: var(--font-hand); font-size: 1.25rem; line-height: 1.4; min-height: 2.4em; }
.how-toggle__line small { display: block; font-family: var(--font-body); font-size: .72rem; color: var(--ink-soft); margin-top: .35em; }
.how-toggle__hint { font-size: .72rem; color: var(--ink-soft); margin-top: .7rem; border-top: 2px dashed rgba(34,48,27,.18); padding-top: .7rem; }

/* ==========================================================================
   书架
   ========================================================================== */
.section--shelf { background: var(--paper-deep); border-top: var(--line); border-bottom: var(--line); position: relative; }

.shelf-filters { display: flex; flex-wrap: wrap; gap: .7rem; margin-bottom: 2.4rem; }
.chip {
  font-family: var(--font-display); font-size: 1rem; letter-spacing: .05em;
  padding: .45em 1.1em; border: 2.5px solid var(--ink);
  background: var(--paper-card); box-shadow: .2rem .2rem 0 var(--ink);
  transition: transform .12s, box-shadow .12s, background .12s, color .12s;
}
.chip:hover { transform: translate(-2px,-2px); box-shadow: .35rem .35rem 0 var(--ink); }
.chip.is-on { background: var(--ink); color: var(--gold); }

.shelf-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.8rem; }

.book { position: relative; display: flex; flex-direction: column; background: var(--paper-card); border: var(--line); box-shadow: var(--shadow-s); transition: transform .18s ease, box-shadow .18s ease; }
.book:hover { transform: translate(-4px,-4px); box-shadow: var(--shadow-m); }
.book__coverwrap { position: relative; overflow: hidden; border-bottom: var(--line); aspect-ratio: 2 / 3; background: var(--paper-deep); }
.book__coverwrap img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.book:hover .book__coverwrap img { transform: scale(1.07); }

.book__genre {
  position: absolute; top: .7rem; left: .7rem; z-index: 2;
  font-size: .68rem; font-weight: 900; letter-spacing: .08em;
  color: #fff; background: var(--grass-deep);
  border: 2px solid var(--ink); padding: .28em .7em;
  box-shadow: .18rem .18rem 0 rgba(34,48,27,.85);
  font-family: var(--font-pixel); font-size: .52rem;
}
.book__genre--l1 { background: var(--grass); }
.book__genre--l2 { background: var(--gold); color: var(--ink); }
.book__genre--l3 { background: var(--ender); }
.book__words {
  position: absolute; bottom: .7rem; left: .7rem; z-index: 2;
  font-size: .64rem; font-weight: 700; letter-spacing: .05em;
  color: #fff; background: rgba(34,48,27,.82);
  border: 1.5px solid rgba(255,255,255,.35); padding: .3em .7em;
  backdrop-filter: blur(3px);
}

.book__up {
  position: absolute; top: .7rem; right: .7rem; z-index: 2;
  font-family: var(--font-pixel); font-size: .46rem;
  background: var(--tnt); color: #fff; padding: .5em .6em;
  border: 2px solid var(--ink); box-shadow: .18rem .18rem 0 rgba(34,48,27,.85);
  animation: blink 1.6s steps(2) infinite;
}
@keyframes blink { 50% { opacity: .55; } }

.book__hoveract {
  position: absolute; inset: auto 0 0 0; z-index: 2;
  display: flex; justify-content: center;
  padding: 1rem;
  background: linear-gradient(transparent, rgba(34,48,27,.72));
  opacity: 0; transform: translateY(12px);
  transition: opacity .22s ease, transform .22s ease;
}
.book:hover .book__hoveract { opacity: 1; transform: none; }
.book__hoveract .btn { font-size: 1rem; padding: .5em 1.3em; }

.book__body { display: flex; flex-direction: column; gap: .3rem; padding: 1rem 1.1rem 1.15rem; }
.book__name { font-family: var(--font-display); font-size: 1.28rem; line-height: 1.2; }
.book__name small { display: block; font-family: var(--font-pixel); font-size: .44rem; letter-spacing: .18em; color: var(--ink-soft); margin-top: .4em; }
.book__info { display: flex; justify-content: space-between; align-items: center; font-size: .8rem; color: var(--ink-soft); margin-top: .35rem; }
.book__star { color: var(--tnt); font-weight: 900; }

/* ==========================================================================
   连载日历
   ========================================================================== */
.calendar { display: grid; grid-template-columns: repeat(7, 1fr); gap: 1rem; }
.day { border: var(--line); background: var(--paper-card); box-shadow: var(--shadow-s); display: flex; flex-direction: column; min-height: 13rem; transition: transform .15s ease, box-shadow .15s ease; }
.day:hover { transform: translate(-2px,-2px); box-shadow: var(--shadow-m); }
.day__head { border-bottom: var(--line); text-align: center; padding: .55rem .3rem .5rem; }
.day__head b { font-family: var(--font-display); font-size: 1.15rem; display: block; line-height: 1.1; }
.day__head span { font-family: var(--font-pixel); font-size: .42rem; letter-spacing: .16em; color: var(--ink-soft); }
.day--today { background: var(--grass); color: #fff; position: relative; overflow: visible; }
.day--today .day__head { border-color: var(--ink); }
.day--today .day__head span { color: rgba(255,255,255,.85); }
.day__badge {
  position: absolute; top: -1rem; left: 50%; transform: translateX(-50%);
  font-family: var(--font-pixel); font-size: .44rem;
  background: var(--gold); color: var(--ink);
  border: 2px solid var(--ink); box-shadow: .18rem .18rem 0 var(--ink);
  padding: .45em .7em; white-space: nowrap; z-index: 2;
}
.day__items { display: flex; flex-direction: column; gap: .55rem; padding: .8rem .7rem; }
.day__item { display: flex; align-items: center; gap: .55rem; font-size: .8rem; font-weight: 700; line-height: 1.3; }
.day__item img { width: 2.1rem; height: 2.8rem; object-fit: cover; border: 2px solid var(--ink); flex-shrink: 0; background: var(--paper-deep); }
.day--today .day__item img { border-color: rgba(255,255,255,.9); }
.day__rest { margin: auto; text-align: center; font-size: .78rem; color: var(--ink-soft); padding: 1rem .5rem; }

/* ==========================================================================
   特性区
   ========================================================================== */
.section--why { background: var(--paper); }
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.6rem; }
.why {
  border: var(--line); background: var(--paper-card); box-shadow: var(--shadow-s);
  padding: 1.9rem 1.6rem 1.7rem; position: relative;
  transition: transform .15s ease, box-shadow .15s ease;
}
.why:hover { transform: translate(-3px,-3px); box-shadow: var(--shadow-m); }
.why__icon { width: 3.2rem; height: 3.2rem; margin-bottom: 1.1rem; image-rendering: pixelated; }
.why h3 { font-family: var(--font-display); font-size: 1.35rem; margin-bottom: .45rem; }
.why p { font-size: .88rem; color: var(--ink-soft); line-height: 1.75; }
.why__no { position: absolute; top: 1.2rem; right: 1.3rem; font-family: var(--font-pixel); font-size: .5rem; color: var(--paper-deep); text-shadow: 1.5px 1.5px 0 var(--ink-soft); }

/* ==========================================================================
   家长评价
   ========================================================================== */
.quotes { display: grid; grid-template-columns: 1fr 1fr; gap: 1.6rem; margin-top: 2.6rem; }
.quote {
  border: var(--line); background: var(--paper-card); box-shadow: var(--shadow-s);
  padding: 1.5rem 1.6rem 1.3rem; position: relative;
}
.quote::before {
  content: '“'; position: absolute; top: .2rem; right: 1.1rem;
  font-family: var(--font-display); font-size: 3.2rem; color: var(--paper-deep);
  text-shadow: 2px 2px 0 rgba(34,48,27,.14);
}
.quote p { font-size: .92rem; line-height: 1.85; color: var(--ink-80); position: relative; z-index: 1; }
.quote p b { color: var(--grass-deep); }
.quote footer { display: flex; align-items: center; gap: .7rem; margin-top: 1rem; font-size: .76rem; color: var(--ink-soft); }
.quote footer .ava {
  width: 2rem; height: 2rem; flex-shrink: 0; image-rendering: pixelated;
  border: 2px solid var(--ink);
}
.quote footer b { color: var(--ink); font-size: .84rem; }

/* ==========================================================================
   CTA BAND
   ========================================================================== */
.cta-band {
  position: relative;
  background: var(--grass);
  border-top: var(--line); border-bottom: var(--line);
  padding: 4.6rem 0;
  overflow: hidden;
}
.cta-band::before {
  content: ''; position: absolute; inset: 0;
  background:
    repeating-linear-gradient(45deg, transparent 0 34px, rgba(255,255,255,.07) 34px 68px);
}
.cta-band__inner { position: relative; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 2rem; }
.cta-band h2 { font-family: var(--font-display); color: #fff; font-size: clamp(1.9rem, 3.4vw, 2.9rem); line-height: 1.2; text-shadow: 3px 3px 0 rgba(34,48,27,.65); }
.cta-band p { color: rgba(255,255,255,.92); margin-top: .5rem; font-size: 1.02rem; }
.cta-band .btn { font-size: 1.2rem; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer { background: var(--ink); color: var(--paper); padding: 4rem 0 2.2rem; }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2.5rem; margin-bottom: 3rem; }
.footer__brand .logo__text { color: var(--paper); }
.footer__brand p { font-size: .86rem; color: rgba(251,244,226,.62); margin-top: 1rem; max-width: 26em; }
.footer h4 { font-family: var(--font-display); font-size: 1.08rem; color: var(--gold); margin-bottom: 1rem; letter-spacing: .05em; }
.footer ul { list-style: none; display: flex; flex-direction: column; gap: .6rem; font-size: .88rem; }
.footer ul a { color: rgba(251,244,226,.75); transition: color .15s; }
.footer ul a:hover { color: var(--leaf); }
.footer__bottom { border-top: 2px solid rgba(251,244,226,.14); padding-top: 1.6rem; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; font-size: .74rem; color: rgba(251,244,226,.5); }
.footer__bottom b { font-family: var(--font-pixel); font-size: .5rem; color: var(--leaf); font-weight: 400; }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 64rem) {
  .shelf-grid { grid-template-columns: repeat(3, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .levels-grid { grid-template-columns: 1fr; max-width: 34rem; margin: 0 auto; }
  .how-grid { grid-template-columns: 1fr; gap: 2.4rem; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .calendar { grid-template-columns: repeat(7, 12rem); overflow-x: auto; padding-bottom: 1rem; }
}

@media (max-width: 48rem) {
  .nav__links, .nav__cta { display: none; }
  .nav__burger { display: flex; }
  .nav__links.is-open {
    display: flex; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 0; background: var(--paper);
    border-bottom: var(--line);
  }
  .nav__links.is-open a { padding: 1rem 1.5rem; border-top: 2px solid rgba(34,48,27,.12); }

  .hero__inner { grid-template-columns: 1fr; padding-block: 3rem 4.5rem; gap: 2.6rem; }
  .topbar { padding: .6rem 1rem; }
  .topbar__inner { justify-content: flex-start; overflow: hidden; }
  .hero__stats { gap: 1.6rem; flex-wrap: wrap; }
  .shelf-grid { grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }
  .why-grid { grid-template-columns: 1fr; }
  .quotes { grid-template-columns: 1fr; }
  .section { padding: 3.6rem 0; }
  .sec-head { flex-direction: column; align-items: flex-start; }
  .footer__grid { grid-template-columns: 1fr; gap: 1.8rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01s !important; transition-duration: .01s !important; }
  html { scroll-behavior: auto; }
}