/* ===== 布局改版 v2 · 2026-10-15 =====
   依据：impeccable arrange/bolder、refactoring-ui spacing/button hierarchy
   目标：一眼能看出变化——加大留白、浮起卡片、强化主 CTA、侧栏对比
   不改业务逻辑；青绿书院品牌色保留并加强对比 */

:root{
  --v2-space-1:4px;--v2-space-2:8px;--v2-space-3:12px;--v2-space-4:16px;
  --v2-space-5:24px;--v2-space-6:32px;--v2-space-7:48px;--v2-space-8:64px;--v2-space-9:96px;
  --v2-radius:18px;
  --v2-radius-lg:24px;
  --v2-shadow:0 2px 4px rgba(20,46,38,.06),0 16px 40px -18px rgba(20,46,38,.28);
  --v2-shadow-hover:0 4px 8px rgba(20,46,38,.08),0 28px 56px -20px rgba(23,77,67,.38);
  --v2-shadow-cta:0 8px 24px -6px rgba(24,116,94,.45);
  --v2-max:1080px;
  --v2-green:#18745e;
  --v2-green-deep:#0f4f40;
}

/* ========== 1. 首页 index ========== */
.首页顶栏,.首页内容,.首页页脚{
  max-width:var(--v2-max);
  padding-left:clamp(1.25rem,4vw,2.75rem);
  padding-right:clamp(1.25rem,4vw,2.75rem);
}
.首页顶栏{
  height:auto;
  min-height:72px;
  padding-top:20px;
  padding-bottom:20px;
  margin-bottom:8px;
  border-bottom:0;
  position:sticky;
  top:0;
  z-index:30;
  background:color-mix(in srgb,var(--底色,#f6f8f3) 92%,transparent);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.首页标识{
  gap:14px;
  font-size:22px;
}
.首页标识 img{
  width:48px;height:48px;
  border-radius:14px;
  box-shadow:0 4px 12px rgba(24,116,94,.2);
}
.首页顶栏 nav{
  gap:8px;
  padding:6px;
  background:#fff;
  border-radius:999px;
  border:1px solid var(--边线,#dbe6df);
  box-shadow:0 2px 8px rgba(20,46,38,.06);
}
.首页顶栏 nav a{
  padding:8px 16px;
  border-radius:999px;
  font-weight:600;
  min-height:40px;
}
.首页顶栏 nav a:hover{
  background:var(--浅绿,#eaf4ef);
  color:var(--主色,var(--v2-green));
}

/* 英雄区：大留白 + 分区背景带 */
.首页欢迎{
  display:grid;
  grid-template-columns:1.35fr .9fr;
  gap:clamp(2.5rem,6vw,4.5rem);
  align-items:center;
  padding:clamp(3.5rem,8vw,5.5rem) 0 clamp(3rem,6vw,4.5rem);
  margin:0 0 var(--v2-space-8);
  border-bottom:0;
  position:relative;
}
.首页欢迎::before{
  content:"";
  position:absolute;
  left:50%;
  transform:translateX(-50%);
  width:100vw;
  top:0;bottom:0;
  background:
    radial-gradient(ellipse 60% 80% at 85% 20%,rgba(24,116,94,.12),transparent 55%),
    radial-gradient(ellipse 50% 60% at 10% 80%,rgba(239,229,209,.55),transparent 50%),
    linear-gradient(180deg,#eef5f0 0%,transparent 100%);
  z-index:-1;
  pointer-events:none;
}
.首页欢迎 h1{
  font-size:clamp(2.25rem,5.5vw,3.5rem)!important;
  line-height:1.2!important;
  letter-spacing:-.03em!important;
  margin:0 0 1.25rem!important;
  max-width:12ch;
}
.首页眉题{
  font-size:14px!important;
  letter-spacing:.18em!important;
  text-transform:uppercase;
  margin-bottom:16px!important;
}
.首页欢迎 p:not(.首页眉题){
  font-size:1.125rem!important;
  line-height:1.8!important;
  max-width:36ch;
  color:var(--次文字,#53685f);
}
/* 主 CTA：更大、更醒目 */
.首页按钮{
  display:inline-flex!important;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  min-height:56px!important;
  padding:14px 28px!important;
  margin-top:28px!important;
  font-size:1.05rem;
  font-weight:700;
  border-radius:14px!important;
  background:var(--主色,var(--v2-green))!important;
  color:#fff!important;
  box-shadow:var(--v2-shadow-cta)!important;
  transition:transform .2s,box-shadow .2s,background .18s!important;
}
.首页按钮:hover{
  background:var(--v2-green-deep)!important;
  transform:translateY(-3px);
  box-shadow:0 12px 32px -8px rgba(24,116,94,.55)!important;
}
.学习札记{
  padding:36px 40px!important;
  border-radius:16px 48px 16px 16px!important;
  background:linear-gradient(160deg,#dcead6 0%,#e8f0e4 100%)!important;
  border:2px solid #c5d9bc!important;
  box-shadow:12px 14px 0 #d5e4cf,0 20px 40px -20px rgba(20,46,38,.25)!important;
  transform:rotate(1.5deg);
}
.学习札记 h2{
  font-size:clamp(1.75rem,3vw,2.25rem)!important;
  margin:24px 0!important;
}

/* 科目网格：更大间距、浮起卡片 */
#科目{
  padding:var(--v2-space-7) 0 var(--v2-space-8);
}
.首页分区头{
  margin-bottom:var(--v2-space-6)!important;
  padding-bottom:var(--v2-space-4);
  border-bottom:2px solid var(--边线,#dbe6df);
}
.首页分区头 h2{
  font-size:clamp(1.5rem,3vw,1.875rem)!important;
}
.科目网格{
  display:grid!important;
  grid-template-columns:repeat(3,minmax(0,1fr))!important;
  gap:clamp(1.25rem,3vw,2rem)!important;
}
.科目卡{
  padding:32px 28px 24px!important;
  border-radius:var(--v2-radius)!important;
  border:1px solid transparent!important;
  background:#fff!important;
  box-shadow:var(--v2-shadow)!important;
  min-height:280px;
  transition:transform .22s cubic-bezier(.22,.9,.3,1),box-shadow .22s!important;
}
.科目卡:hover{
  transform:translateY(-8px)!important;
  box-shadow:var(--v2-shadow-hover)!important;
  border-color:var(--主色,var(--v2-green))!important;
}
.科目符号{
  font-size:56px!important;
  margin:28px 0 20px!important;
}
.科目卡 h3{
  font-size:1.625rem!important;
  margin-bottom:14px!important;
}
.科目卡底{
  margin-top:auto;
  padding-top:20px!important;
  border-top:2px solid var(--边线,#dbe6df)!important;
  color:var(--主色,var(--v2-green));
  font-size:15px!important;
}
.科目状态{
  padding:5px 12px!important;
  border-radius:999px!important;
  font-weight:600;
}

/* 英语编排 / 资料说明 */
.英语编排{
  padding:var(--v2-space-8) 0!important;
  margin-top:var(--v2-space-5);
}
.编排序列{
  border:0!important;
  border-radius:var(--v2-radius)!important;
  box-shadow:var(--v2-shadow)!important;
  gap:0;
  overflow:hidden;
  background:#fff!important;
}
.编排序列 li{
  padding:32px 28px!important;
  border-right:1px solid var(--边线,#dbe6df);
}
.编排序列 strong{
  font-size:1.5rem!important;
}
.资料说明{
  margin:var(--v2-space-7) 0 var(--v2-space-8)!important;
  padding:clamp(1.75rem,4vw,2.5rem) clamp(1.5rem,4vw,2.5rem)!important;
  background:#fff;
  border-radius:var(--v2-radius);
  box-shadow:var(--v2-shadow);
  border:0!important;
  gap:var(--v2-space-6)!important;
}
.资料说明 h2{
  font-size:1.35rem!important;
}
.首页文字链接{
  font-size:15px!important;
  padding:10px 0;
  gap:8px;
}
.首页页脚{
  padding:var(--v2-space-7) clamp(1.25rem,4vw,2.75rem) var(--v2-space-8)!important;
  font-size:13px!important;
  letter-spacing:.04em;
}

/* 资料页标题 / 科目列表 */
.资料页标题{
  padding:clamp(2.5rem,5vw,3.5rem) 0 var(--v2-space-6)!important;
  max-width:var(--v2-max);
}
.资料页标题 h1{
  font-size:clamp(2rem,4vw,2.75rem)!important;
  letter-spacing:-.02em;
}
.资料页标题 p{
  font-size:1.05rem!important;
  max-width:62ch!important;
  line-height:1.85!important;
  margin-top:16px;
}
.科目切换{
  gap:12px!important;
  margin-bottom:var(--v2-space-6);
}
.科目切换 a{
  min-height:48px!important;
  padding:10px 20px!important;
  border-radius:12px!important;
  font-weight:600;
  box-shadow:0 1px 3px rgba(20,46,38,.06);
}
.科目切换 a[aria-current]{
  box-shadow:var(--v2-shadow-cta);
}
.资料清单,.试卷卡{
  max-width:var(--v2-max)!important;
}
.试卷卡,.数学专项{
  padding:32px 36px!important;
  border-radius:var(--v2-radius)!important;
  border:1px solid transparent!important;
  box-shadow:var(--v2-shadow)!important;
  margin-bottom:var(--v2-space-5)!important;
}
.资料清单{
  gap:var(--v2-space-5)!important;
}
.试卷动作{
  gap:16px!important;
  margin-top:24px!important;
}
.练习按钮{
  min-height:48px!important;
  padding:12px 22px!important;
  border-radius:12px!important;
  font-size:15px!important;
  box-shadow:var(--v2-shadow-cta);
}
.次按钮{
  min-height:48px!important;
  padding:12px 20px!important;
  border-radius:12px!important;
}

/* ========== 2. 专业课答题：侧栏/主区对比 + 浮起 ========== */
.答题布局{
  grid-template-columns:260px minmax(0,1fr)!important;
  gap:clamp(1.75rem,4vw,2.75rem)!important;
  align-items:start;
}
.答题导航{
  padding:28px 24px!important;
  border-radius:var(--v2-radius)!important;
  border:0!important;
  background:#fff!important;
  box-shadow:var(--v2-shadow)!important;
}
.专业课试题{
  padding:clamp(1.75rem,3.5vw,2.5rem) clamp(1.5rem,3vw,2.25rem)!important;
  border-radius:var(--v2-radius)!important;
  border:0!important;
  background:#fff!important;
  box-shadow:var(--v2-shadow)!important;
}
.题号网格{
  gap:10px!important;
}
.题号网格 button{
  min-height:46px!important;
  border-radius:10px!important;
  font-weight:600;
}
.成绩卡{
  padding:32px 36px!important;
  border-radius:var(--v2-radius)!important;
  gap:var(--v2-space-6)!important;
  box-shadow:var(--v2-shadow);
}

/* AI 判分区 */
.ai判题区{
  margin:var(--v2-space-6) 0!important;
  padding:var(--v2-space-5) var(--v2-space-6)!important;
  border-radius:var(--v2-radius)!important;
  border:2px solid #a8c9b8!important;
  background:linear-gradient(165deg,#f0f7ed 0%,#f7fbf5 100%)!important;
  box-shadow:0 8px 24px -12px rgba(24,116,94,.25)!important;
  max-width:100%;
}
.ai判题标题{
  font-size:1.125rem!important;
  margin-bottom:10px!important;
}
.ai判题说明{
  font-size:13.5px!important;
  margin-bottom:16px!important;
}
.ai截图行,.ai动作行{
  gap:12px!important;
  margin:14px 0!important;
}
.ai判分按钮{
  min-height:48px!important;
  min-width:128px!important;
  padding:12px 22px!important;
  border-radius:12px!important;
  font-size:16px!important;
  font-weight:700;
  box-shadow:var(--v2-shadow-cta)!important;
}
.ai上传按钮{
  min-height:48px!important;
  padding:10px 18px!important;
  border-radius:12px!important;
}
.ai预览{
  min-height:72px!important;
  padding:16px!important;
  border-radius:12px!important;
  margin:12px 0!important;
}

/* ========== 3. 英语练习室：侧栏更宽更深、主内容浮起 ========== */
.壳 .侧栏{
  width:240px!important;
  padding:36px 20px!important;
  background:linear-gradient(180deg,#134a40 0%,#0d3a32 100%)!important;
  border-right:0!important;
  box-shadow:8px 0 32px -12px rgba(9,37,27,.45);
}
.壳 .主区{
  margin-left:240px!important;
  background:var(--底,#f0f5f3);
}
.壳 .内容{
  max-width:1200px;
  padding:clamp(2rem,4vw,3rem) clamp(1.5rem,3.5vw,2.75rem) clamp(3rem,5vw,4.5rem)!important;
}
.壳 .顶栏{
  height:72px!important;
  padding-left:clamp(1.25rem,3vw,2.5rem)!important;
  padding-right:clamp(1.25rem,3vw,2.5rem)!important;
  box-shadow:0 1px 0 rgba(20,46,38,.06);
}
.壳 .导航 a{
  border-radius:12px!important;
  padding:14px 16px!important;
  min-height:48px;
}
.壳 .导航 a.选中{
  background:#fff!important;
  color:#0d3a32!important;
  font-weight:700;
  box-shadow:0 4px 14px rgba(0,0,0,.12)!important;
}
.壳 .试题,.壳 .答题卡,.壳 .套题项,.壳 .分类项,.壳 .学习欢迎{
  border-radius:var(--v2-radius)!important;
  box-shadow:var(--v2-shadow)!important;
  border-color:transparent!important;
}
.壳 .答题布局{
  grid-template-columns:minmax(0,1fr) 280px!important;
  gap:clamp(1.5rem,3.5vw,2.5rem)!important;
}
.壳 .试题{
  padding:clamp(1.75rem,3vw,2.5rem)!important;
}
.壳 .答题卡{
  padding:28px 24px!important;
}
.壳 .题号网格{
  gap:10px!important;
  margin:24px 0!important;
}
.壳 .题号{
  border-radius:10px!important;
  min-height:40px;
  font-weight:600;
}
.壳 .分类网格{
  gap:var(--v2-space-5)!important;
}
.壳 .分类项{
  min-height:190px!important;
  padding:28px 24px!important;
}
.壳 .套题列表{
  gap:var(--v2-space-5)!important;
}
.壳 .套题项{
  padding:28px!important;
}
.壳 .按钮:not(.次要):not(.轻){
  min-height:46px;
  border-radius:12px!important;
  padding:12px 20px;
  box-shadow:var(--v2-shadow-cta);
}
.壳 .学习欢迎{
  padding:clamp(2rem,4vw,2.75rem) clamp(1.75rem,3.5vw,2.5rem)!important;
  margin-bottom:var(--v2-space-7)!important;
  gap:var(--v2-space-6)!important;
}

/* ========== 4. 登录页 ========== */
.登录壳{
  padding:clamp(1.5rem,4vw,3rem)!important;
}
.登录卡{
  max-width:460px!important;
  padding:clamp(2.5rem,5vw,3.25rem) clamp(2rem,4vw,2.75rem)!important;
  border-radius:20px 20px 56px 20px!important;
  box-shadow:0 24px 64px -16px rgba(15,79,64,.35)!important;
  border:0!important;
}
.登录卡 h1{
  font-size:clamp(1.75rem,4vw,2.25rem)!important;
  margin-bottom:12px!important;
}
.登录卡 .副标题{
  margin-bottom:var(--v2-space-7)!important;
  font-size:15px!important;
}
.表单组{
  margin-bottom:var(--v2-space-5)!important;
}
.表单组 label{
  margin-bottom:8px!important;
  font-size:14px!important;
}
.表单组 input{
  min-height:52px!important;
  padding:14px 16px!important;
  border-radius:12px!important;
  font-size:16px!important;
  border-width:1.5px!important;
}
.提交按钮{
  min-height:52px!important;
  margin-top:var(--v2-space-4)!important;
  border-radius:14px!important;
  font-size:16px!important;
  font-weight:700;
  box-shadow:var(--v2-shadow-cta)!important;
}
.提交按钮:hover{
  transform:translateY(-2px)!important;
  box-shadow:0 12px 28px -8px rgba(24,116,94,.5)!important;
}
.切换提示{
  margin-top:var(--v2-space-7)!important;
  padding-top:var(--v2-space-5);
  border-top:1px solid var(--线,#e2e8e4);
}
.标识{
  margin-bottom:var(--v2-space-6)!important;
}
.标识 img{
  width:48px!important;
  height:48px!important;
  border-radius:12px!important;
}

/* ========== 响应式 ========== */
@media(max-width:900px){
  .科目网格{grid-template-columns:1fr!important;gap:var(--v2-space-4)!important}
  .首页欢迎{grid-template-columns:1fr!important;padding:var(--v2-space-7) 0!important}
  .学习札记{transform:none;max-width:420px}
  .编排序列{grid-template-columns:1fr 1fr!important}
  .答题布局{grid-template-columns:1fr!important;gap:var(--v2-space-5)!important}
  .壳 .侧栏{width:80px!important;padding:24px 10px!important}
  .壳 .主区{margin-left:80px!important}
  .壳 .答题布局{grid-template-columns:minmax(0,1fr)!important}
}
@media(max-width:680px){
  .首页顶栏{position:static;background:transparent;backdrop-filter:none}
  .首页顶栏 nav{width:100%;justify-content:flex-start;overflow-x:auto;flex-wrap:nowrap}
  .首页欢迎 h1{max-width:none!important;font-size:clamp(1.85rem,8vw,2.35rem)!important}
  .学习札记{display:none!important}
  .科目卡{min-height:0;padding:24px 22px!important}
  .科目符号{font-size:40px!important;opacity:.4}
  .编排序列{grid-template-columns:1fr!important}
  .编排序列 li{border-right:0;border-bottom:1px solid var(--边线,#dbe6df)}
  .资料说明{flex-direction:column;align-items:flex-start}
  .壳 .侧栏{display:none!important}
  .壳 .主区{margin-left:0!important}
  .壳 .内容{padding:1.25rem 1rem 6.5rem!important}
  .答题导航{
    position:static!important;
    display:flex;
    flex-direction:column;
  }
  /* 移动端题号横滑条 */
  .答题导航 .题号网格{
    display:flex!important;
    flex-wrap:nowrap!important;
    overflow-x:auto;
    gap:8px!important;
    padding-bottom:8px;
    -webkit-overflow-scrolling:touch;
    scroll-snap-type:x proximity;
  }
  .答题导航 .题号网格 button{
    flex:0 0 44px;
    width:44px;
    scroll-snap-align:start;
  }
  .壳 .题号网格{
    grid-template-columns:repeat(5,minmax(0,1fr))!important;
  }
  .ai判题区{padding:var(--v2-space-4)!important}
  .ai判分按钮{width:100%;justify-content:center}
  .试卷卡,.数学专项{padding:22px 18px!important}
  .登录卡{padding:2rem 1.35rem!important;border-radius:18px 18px 40px 18px!important}
}
@media(prefers-reduced-motion:reduce){
  .科目卡,.首页按钮,.提交按钮,.壳 .分类项,.壳 .套题项{transition:none!important}
  .科目卡:hover,.首页按钮:hover,.提交按钮:hover{transform:none!important}
}

/* ===== 成长空间 · 与首页 v2 同节奏 ===== */
.成长空间{padding:var(--v2-space-7,48px) 0 var(--v2-space-8,64px)}
.功能网格{
  display:grid!important;
  grid-template-columns:repeat(3,minmax(0,1fr))!important;
  gap:clamp(1.1rem,2.5vw,1.75rem)!important;
}
.功能卡{
  border-radius:var(--v2-radius,18px)!important;
  box-shadow:var(--v2-shadow)!important;
  border:1px solid transparent!important;
}
.功能卡:hover{
  box-shadow:var(--v2-shadow-hover)!important;
  transform:translateY(-8px)!important;
}
.首页用户名{
  pointer-events:none!important;
  cursor:default!important;
}
@media(max-width:900px){.功能网格{grid-template-columns:repeat(2,minmax(0,1fr))!important}}
@media(max-width:600px){.功能网格{grid-template-columns:1fr!important}}

/* 阅读答题窗侧栏偏移：与 .壳 .侧栏 宽度对齐，避免二级窗口错位 */
.壳 .含阅读 .阅读答题窗{left:240px}
@media(max-width:900px){.壳 .含阅读 .阅读答题窗{left:80px}}
@media(max-width:680px){.壳 .含阅读 .阅读答题窗{left:0;right:0}}