/* ==========================================================================
   岐黄诵 · main.css
   设计系统：赭红经典古籍风（宣纸×朱墨×蠹黄）｜横竖屏双布局｜克制动效
   ========================================================================== */

/* ---------- 1. 令牌 ---------- */
:root{
  --font-kai:"Kaiti SC","STKaiti","KaiTi","BiauKai","DFKai-SB","Songti SC","SimSun",serif;
  --font-song:"Songti SC","SimSun","Noto Serif SC",serif;

  /* 圆角唯一制 */
  --r-card:10px; --r-seal:8px; --r-small:4px;
  --sp:16px;

  --c-weak:#b23a2f;  /* 不熟悉 · 朱 */
  --c-ok:#a17a2d;    /* 熟悉 · 蠹金 */
  --c-master:#4e7d5b;/* 掌握 · 竹青 */
  --c-none:#9c8d75;

  --dur:.26s;
  --ease:cubic-bezier(.16,1,.3,1);
}

body[data-paper="xuan"]{
  --paper:#f4ecdd; --paper-2:#ecdfc8; --card:#faf5e9; --card-2:#f3ead7;
  --ink:#33291f; --ink-2:#7d6c55; --faint:#a5947a;
  --line:#dbcba9; --line-2:#c9b58d;
  --ochre:#9d3b25; --ochre-deep:#7f2d1a; --ochre-soft:#f0dfd2;
  --seal:#b23a2f; --gold:#a17a2d; --green:#4e7d5b;
  --gold-bg:#f1e3bd; --green-bg:#e0e8d5; --seal-bg:#f2dcd4;
  --shadow:0 2px 14px rgba(122,55,30,.10);
  --shadow-lg:0 10px 40px rgba(90,40,20,.22);
  --scrim:rgba(46,32,20,.42);
}
body[data-paper="juan"]{
  --paper:#eddfc4; --paper-2:#e3d2b0; --card:#f5ead2; --card-2:#eddfc0;
  --ink:#33251a; --ink-2:#79644a; --faint:#a08b68;
  --line:#d2bd94; --line-2:#bf9f6e;
  --ochre:#93341f; --ochre-deep:#762816; --ochre-soft:#eed7c3;
  --seal:#a93429; --gold:#97701f; --green:#44714f;
  --gold-bg:#eadbb0; --green-bg:#d8e2c8; --seal-bg:#eed3c6;
  --shadow:0 2px 14px rgba(112,60,25,.13);
  --shadow-lg:0 10px 40px rgba(80,38,15,.26);
  --scrim:rgba(46,32,16,.45);
}
body[data-paper="night"]{
  --paper:#211b15; --paper-2:#2a2219; --card:#2b231a; --card-2:#332a1f;
  --ink:#e8dcc0; --ink-2:#b3a081; --faint:#847256;
  --line:#4a3d2b; --line-2:#5d4d35;
  --ochre:#d4694a; --ochre-deep:#e08a6a; --ochre-soft:#4a2c1f;
  --seal:#c9503f; --gold:#c9a24d; --green:#6f9c7d;
  --gold-bg:#4a3c22; --green-bg:#2f4034; --seal-bg:#4c2a24;
  --shadow:0 2px 14px rgba(0,0,0,.4);
  --shadow-lg:0 12px 44px rgba(0,0,0,.6);
  --scrim:rgba(8,5,2,.62);
}

/* 阅读排版档位（学习视图调节） */
#view[data-fs="0"]{--fs-read:17px} #view[data-fs="1"]{--fs-read:19px}
#view[data-fs="2"]{--fs-read:21px} #view[data-fs="3"]{--fs-read:23px}
#view[data-fs="4"]{--fs-read:26px}
#view[data-lh="0"]{--lh-read:1.7} #view[data-lh="1"]{--lh-read:1.95} #view[data-lh="2"]{--lh-read:2.2}

/* ---------- 2. 基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
html{height:100%}
body{
  height:100%; overflow:hidden;
  background:var(--paper); color:var(--ink);
  font-family:var(--font-song);
  font-size:15px; line-height:1.6;
  -webkit-font-smoothing:antialiased;
  transition:background-color .35s var(--ease), color .35s var(--ease);
}
/* 宣纸纹理（固定层，不参与滚动重绘） */
body::after{
  content:""; position:fixed; inset:0; z-index:400; pointer-events:none; opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='260'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='260' height='260' filter='url(%23n)'/%3E%3C/svg%3E");
}
body[data-paper="night"]::after{opacity:.07; mix-blend-mode:screen}

h1,h2,h3,h4{margin:0; font-weight:600}
p{margin:0}
button{font-family:inherit; color:inherit; background:none; border:0; padding:0; cursor:pointer}
input,select{font-family:inherit; color:var(--ink)}
:focus-visible{outline:2px solid var(--ochre); outline-offset:2px; border-radius:var(--r-small)}
.hide{display:none!important}
.ic{width:20px;height:20px;flex:none;display:block}
b{font-weight:600}

/* 滚动条 */
*::-webkit-scrollbar{width:9px;height:9px}
*::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:99px;border:2px solid var(--paper)}
*::-webkit-scrollbar-track{background:transparent}

/* ---------- 3. 壳布局 ---------- */
#app{height:100%}

/* —— 横屏 —— */
body.layout-landscape #app{
  display:grid; grid-template-columns:212px 1fr; height:100dvh;
}
body.layout-landscape #sidebar{display:flex}
body.layout-landscape #tabbar{display:none}
body.layout-landscape #shell{display:flex;flex-direction:column;min-width:0;min-height:0}
body.layout-landscape #view{flex:1;overflow-y:auto;min-height:0}

/* —— 竖屏 —— */
body.layout-portrait #app{display:flex;flex-direction:column;height:100dvh}
body.layout-portrait #sidebar{display:none}
body.layout-portrait #tabbar{display:flex}
body.layout-portrait #shell{flex:1;display:flex;flex-direction:column;min-height:0}
body.layout-portrait #view{flex:1;overflow-y:auto;min-height:0;-webkit-overflow-scrolling:touch}
body.layout-portrait #view>.page{padding:14px 14px 28px}

/* ---------- 4. 侧栏（书签式导航） ---------- */
#sidebar{
  flex-direction:column; gap:6px; padding:20px 12px 14px;
  background:var(--paper-2);
  border-right:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:10px;padding:2px 6px 16px;border-bottom:1px solid var(--line);margin-bottom:10px}
.seal{
  width:40px;height:40px;flex:none;display:grid;place-items:center;
  background:var(--seal);color:#f7efe0;border-radius:var(--r-seal);
  font-family:var(--font-kai);font-size:24px;line-height:1;
  box-shadow:inset 0 0 0 1.5px rgba(247,239,224,.35), var(--shadow);
}
.brand-txt b{font-family:var(--font-kai);font-size:19px;letter-spacing:.14em;display:block}
.brand-txt i{font-style:normal;font-size:10.5px;color:var(--ink-2);letter-spacing:.06em}
.side-nav{display:flex;flex-direction:column;gap:4px;flex:1}
.nav-btn{
  display:flex;align-items:center;gap:11px;width:100%;
  padding:10px 12px;border-radius:var(--r-card);
  font-size:14.5px;letter-spacing:.12em;color:var(--ink-2);
  transition:background-color .2s,color .2s,transform .12s;
}
.nav-btn:hover{background:var(--card);color:var(--ink)}
.nav-btn:active{transform:scale(.97)}
.nav-btn.on{
  background:var(--card);color:var(--ochre);font-weight:600;
  box-shadow:inset 3px 0 0 var(--ochre);
}
.side-foot{border-top:1px solid var(--line);padding-top:8px;display:flex;flex-direction:column;gap:6px}
.side-note{font-size:10.5px;color:var(--faint);text-align:center;letter-spacing:.08em;line-height:1.8}

/* ---------- 站点脚注（备案与署名） ---------- */
.site-foot{font-size:10.5px;color:var(--faint);line-height:2;letter-spacing:.04em;text-align:center}
.site-foot p{margin:0}
.site-foot a{color:var(--faint);text-decoration:none;transition:color .2s}
.site-foot a:hover{color:var(--ochre)}
.beian{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:2px 8px}
.beian-icon{width:14px;height:14px;vertical-align:-3px;margin-right:3px;display:inline-block}
.beian-divider{opacity:.45}
#site-foot-side{margin-top:6px;padding-top:8px;border-top:1px solid var(--line);font-size:10px;letter-spacing:0;line-height:1.9}
.site-foot.page-foot{margin-top:36px;padding-top:14px;border-top:1px solid var(--line)}

/* 邮箱选择弹层（复制地址 / 打开邮件应用） */
.mail-pop{
  position:fixed;z-index:610;width:246px;background:var(--card);border:1px solid var(--line-2);
  border-radius:var(--r-card);box-shadow:var(--shadow-lg);padding:14px 14px 12px;text-align:center;
  animation:pop .2s var(--ease) both;
}
.mail-cap{font-size:11px;color:var(--ink-2);letter-spacing:.24em;margin:0 0 4px}
.mail-addr{
  font-family:var(--font-kai);font-size:15.5px;color:var(--ink);margin:0 0 12px;
  letter-spacing:.03em;word-break:break-all;user-select:all;cursor:text;
}
.mail-pop .mini-acts{margin:0;justify-content:center;gap:8px}
.mail-pop .btn{padding:6px 12px;font-size:12.5px}
.mail-pop .btn .ic{width:15px;height:15px}

/* ---------- 5. 顶栏 / 标签栏 ---------- */
#topbar{
  display:flex;align-items:center;gap:10px;height:58px;flex:none;
  padding:0 16px;border-bottom:1px solid var(--line);
  background:color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter:blur(8px);position:relative;z-index:20;
}
#top-title{font-family:var(--font-kai);font-size:19px;letter-spacing:.18em;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top-actions{display:flex;align-items:center;gap:6px}
.icon-btn{
  width:36px;height:36px;display:grid;place-items:center;border-radius:99px;
  color:var(--ink-2);transition:background-color .2s,color .2s,transform .12s;
}
.icon-btn:hover{background:var(--paper-2);color:var(--ink)}
.icon-btn:active{transform:scale(.92)}
.due-pill{
  font-size:12px;color:var(--seal);background:var(--seal-bg);
  padding:3px 10px;border-radius:99px;letter-spacing:.05em;white-space:nowrap;
}

#tabbar{
  flex:none;display:none;justify-content:space-around;align-items:stretch;
  border-top:1px solid var(--line);background:var(--paper-2);
  padding-bottom:env(safe-area-inset-bottom);z-index:30;
}
.tab-btn{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;
  padding:8px 0 7px;color:var(--faint);font-size:10.5px;letter-spacing:.1em;
  transition:color .2s;position:relative;
}
.tab-btn .ic{width:22px;height:22px}
.tab-btn.on{color:var(--ochre)}
.tab-btn.on::before{
  content:"";position:absolute;top:0;width:26px;height:3px;border-radius:0 0 3px 3px;
  background:var(--ochre);
}

/* ---------- 6. 通用组件 ---------- */
.page{padding:20px 24px 40px;max-width:1180px;margin:0 auto}
body.layout-portrait #view>.page{max-width:none}

/* 进场级联 */
.anim-in{animation:fadeUp .3s var(--ease) both;animation-delay:calc(var(--i,0)*32ms)}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:9px 20px;border-radius:99px;font-size:14.5px;letter-spacing:.1em;
  border:1px solid var(--line-2);background:var(--card);color:var(--ink);
  transition:transform .12s,box-shadow .2s,background-color .2s,border-color .2s;
  user-select:none;
}
.btn:hover{border-color:var(--ochre);color:var(--ochre)}
.btn:active{transform:scale(.97)}
.btn.primary{background:var(--ochre);border-color:var(--ochre);color:#f9f1e2;font-weight:600}
.btn.primary:hover{background:var(--ochre-deep);border-color:var(--ochre-deep);color:#f9f1e2}
.btn.ghost{background:transparent;border-color:transparent;color:var(--ink-2)}
.btn.ghost:hover{color:var(--ochre)}
.btn.sm{padding:6px 14px;font-size:13px}
.btn .ic{width:17px;height:17px}
.btn:disabled{opacity:.45;pointer-events:none}

/* 筛选片 / 标签片 */
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips.scroll{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
.chips.scroll::-webkit-scrollbar{display:none}
.chip{
  flex:none;padding:6px 14px;border-radius:99px;font-size:13px;letter-spacing:.06em;
  border:1px solid var(--line);background:var(--card);color:var(--ink-2);
  transition:all .18s;white-space:nowrap;
}
.chip:hover{border-color:var(--ochre);color:var(--ochre)}
.chip.on{background:var(--ochre);border-color:var(--ochre);color:#f9f1e2;font-weight:600}
.chip b{font-weight:inherit}

/* 分段控件 */
.seg{display:inline-flex;background:var(--paper-2);border:1px solid var(--line);border-radius:99px;padding:3px;gap:2px}
.seg button{
  display:flex;align-items:center;gap:6px;padding:6px 14px;border-radius:99px;
  font-size:13px;letter-spacing:.08em;color:var(--ink-2);transition:all .18s;
}
.seg button.on{background:var(--card);color:var(--ochre);font-weight:600;box-shadow:var(--shadow)}
.seg .ic{width:16px;height:16px}

/* 卡片 */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);
}

/* 状态点 */
.dot{width:8px;height:8px;border-radius:99px;flex:none;display:inline-block}
.dot.s0{background:transparent;border:1.4px dashed var(--c-none)}
.dot.s1{background:var(--c-weak)}
.dot.s2{background:var(--c-ok)}
.dot.s3{background:var(--c-master)}

/* 徽标（分级/出处） */
.badge{
  flex:none;display:inline-flex;align-items:center;justify-content:center;
  min-width:22px;height:19px;padding:0 6px;border-radius:var(--r-small);
  font-size:11.5px;font-weight:700;letter-spacing:.02em;font-family:var(--font-song);
}
.badge.g1{background:var(--seal);color:#f9f1e2}
.badge.g2{background:var(--gold);color:#f9f1e2}
.badge.g3{background:var(--green);color:#f9f1e2}
.badge.g0{background:transparent;border:1px solid var(--line-2);color:var(--faint);font-weight:400}
.badge.soft{background:var(--ochre-soft);color:var(--ochre);font-weight:600}

.meta-line{font-size:12px;color:var(--ink-2);letter-spacing:.05em}

/* 空状态 */
.empty{padding:56px 20px;text-align:center;color:var(--faint)}
.empty .ic{width:40px;height:40px;margin:0 auto 12px;opacity:.55}
.empty p{font-size:14px;letter-spacing:.08em}
.empty small{display:block;margin-top:6px;font-size:12px}

/* 区块标题 */
.sec-h{display:flex;align-items:baseline;gap:10px;margin:26px 0 12px}
.sec-h:first-child{margin-top:0}
.sec-h h2{font-family:var(--font-kai);font-size:18px;letter-spacing:.16em}
.sec-h .sub{font-size:12px;color:var(--ink-2)}
.sec-h .rig{margin-left:auto}

/* ---------- 7. 弹层 / Toast ---------- */
#modal-root:empty{display:none}
.overlay{
  position:fixed;inset:0;z-index:500;background:var(--scrim);
  display:flex;align-items:center;justify-content:center;padding:18px;
  animation:fadeIn .2s both;
}
@keyframes fadeIn{from{opacity:0}}
.sheet{
  width:min(640px,100%);max-height:min(86dvh,860px);overflow-y:auto;
  background:var(--card);border:1px solid var(--line-2);border-radius:var(--r-card);
  box-shadow:var(--shadow-lg);padding:22px 24px;position:relative;
  animation:pop .26s var(--ease) both;
}
@keyframes pop{from{opacity:0;transform:scale(.96) translateY(8px)}}
.sheet-x{position:absolute;top:12px;right:12px}
#toast-root{position:fixed;left:50%;bottom:86px;transform:translateX(-50%);z-index:600;display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none}
body.layout-landscape #toast-root{bottom:34px}
.toast{
  background:rgba(38,26,16,.92);color:#f3e9d5;font-size:13.5px;letter-spacing:.08em;
  padding:9px 20px;border-radius:99px;box-shadow:var(--shadow-lg);
  animation:toastIn .24s var(--ease) both;
}
.toast.out{animation:toastOut .3s both}
@keyframes toastIn{from{opacity:0;transform:translateY(12px)}}
@keyframes toastOut{to{opacity:0;transform:translateY(8px)}}

/* ---------- 8. 首页 ---------- */
.home-hero{display:flex;align-items:flex-end;gap:14px;flex-wrap:wrap}
.home-hero h2{font-family:var(--font-kai);font-size:26px;letter-spacing:.1em}
.home-hero .date{color:var(--ink-2);font-size:13px;letter-spacing:.14em}
.home-hero .streak{margin-left:auto;display:flex;align-items:center;gap:6px;color:var(--gold);font-size:14px;font-weight:600}
.home-hero .streak .ic{width:19px;height:19px}
.home-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}
body.layout-portrait .home-grid{grid-template-columns:1fr 1fr}
.tile{
  padding:16px 16px 14px;text-align:left;display:flex;flex-direction:column;gap:8px;
  transition:transform .18s var(--ease),box-shadow .2s;position:relative;overflow:hidden;
}
.tile:hover{transform:translateY(-2px);box-shadow:0 6px 22px rgba(122,55,30,.16)}
.tile:active{transform:scale(.98)}
.tile .ic{width:22px;height:22px;color:var(--ochre)}
.tile b{font-size:15.5px;letter-spacing:.16em;font-family:var(--font-kai)}
.tile .num{font-size:22px;font-weight:700;color:var(--ochre);line-height:1}
.tile .cap{font-size:12px;color:var(--ink-2);letter-spacing:.05em}
.tile.wide{grid-column:span 2}
body.layout-portrait .tile.wide{grid-column:span 2}
.tile .go{position:absolute;right:14px;top:14px;color:var(--faint)}

.quote-card{
  margin-top:14px;padding:20px 24px;border-left:3px solid var(--ochre);
  background:linear-gradient(90deg, var(--ochre-soft), transparent 55%), var(--card);
  border-radius:0 var(--r-card) var(--r-card) 0;
}
.quote-card blockquote{
  margin:0;font-family:var(--font-kai);font-size:16.5px;line-height:2;color:var(--ink);
}
.quote-card cite{display:block;margin-top:8px;font-style:normal;font-size:12.5px;color:var(--ink-2);letter-spacing:.12em}
.mini-acts{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}

/* ---------- 9. 学习 ---------- */
.learn-wrap{display:grid;grid-template-columns:216px 1fr;gap:20px;align-items:start}
body.layout-portrait .learn-wrap{grid-template-columns:1fr;gap:12px}
.unit-tree{position:sticky;top:0;display:flex;flex-direction:column;gap:2px}
body.layout-portrait .unit-tree{position:static;flex-direction:row;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
body.layout-portrait .unit-tree::-webkit-scrollbar{display:none}
.tree-btn{
  display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:var(--r-small);
  font-size:13px;color:var(--ink-2);text-align:left;letter-spacing:.03em;
  transition:all .16s;white-space:nowrap;border:1px solid transparent;
}
body.layout-portrait .tree-btn{flex:none;border:1px solid var(--line);border-radius:99px;background:var(--card)}
.tree-btn:hover{color:var(--ochre)}
.tree-btn.on{background:var(--ochre-soft);color:var(--ochre);font-weight:600;border-color:transparent}
body.layout-portrait .tree-btn.on{background:var(--ochre);color:#f9f1e2}
.tree-btn .cnt{margin-left:auto;font-size:11px;color:var(--faint)}
.tree-btn .mini{width:6px;height:6px;border-radius:99px;flex:none}

.learn-toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.search-box{
  display:flex;align-items:center;gap:7px;flex:1;min-width:170px;max-width:320px;
  background:var(--card);border:1px solid var(--line);border-radius:99px;padding:7px 14px;
  transition:border-color .2s;
}
.search-box:focus-within{border-color:var(--ochre)}
.search-box .ic{width:16px;height:16px;color:var(--faint)}
.search-box input{flex:1;border:0;background:none;outline:none;font-size:13.5px}
.search-box input::placeholder{color:var(--faint)}

/* 列表行 */
.item-list{display:flex;flex-direction:column;gap:8px}
.row{
  display:flex;gap:12px;align-items:flex-start;padding:12px 16px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  cursor:pointer;transition:transform .15s var(--ease),box-shadow .2s,border-color .2s;
  text-align:left;width:100%;
}
.row:hover{border-color:var(--line-2);box-shadow:var(--shadow);transform:translateY(-1px)}
.row:active{transform:scale(.99)}
.row .no{font-size:12px;color:var(--ochre);font-weight:700;min-width:34px;padding-top:2px;letter-spacing:.03em}
.row .txt{flex:1;font-family:var(--font-kai);font-size:14.5px;line-height:1.8;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.row .side{display:flex;flex-direction:column;align-items:flex-end;gap:6px}
.star{color:var(--faint);transition:color .2s,transform .2s}
.star.on{color:var(--gold)}
.star:active{transform:scale(1.3)}
.read-flag{font-size:10.5px;color:var(--faint);letter-spacing:.05em}
.row.is-read .no{opacity:.55}

/* 卡片视图 */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.item-card{
  padding:16px 18px;display:flex;flex-direction:column;gap:10px;cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .2s;text-align:left;
}
.item-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.item-card:active{transform:scale(.99)}
.item-card .head{display:flex;align-items:center;gap:8px}
.item-card .head .name{font-weight:700;font-size:15px;font-family:var(--font-kai);letter-spacing:.06em}
.item-card .head .star{margin-left:auto}
.item-card .body{font-family:var(--font-kai);font-size:14px;line-height:var(--lh-read,1.9);
  display:-webkit-box;-webkit-line-clamp:6;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.item-card .foot{display:flex;align-items:center;gap:8px}
.item-card .foot .dot{margin-left:auto}

/* 沉浸阅读 */
.focus-stage{max-width:760px;margin:0 auto;text-align:center}
.focus-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.focus-bar .pos{font-size:13px;color:var(--ink-2);letter-spacing:.14em}
.focus-frame{
  background:var(--card);border-radius:var(--r-card);box-shadow:var(--shadow);
  padding:34px 30px;position:relative;min-height:320px;
  display:flex;align-items:center;justify-content:center;
  outline:1px solid var(--line);outline-offset:-7px;border:1px solid var(--line);
}
.focus-text{
  font-family:var(--font-kai);font-size:var(--fs-read,21px);line-height:var(--lh-read,1.95);
  letter-spacing:.06em;white-space:pre-wrap;word-break:break-word;
  max-width:100%;margin:0;transition:font-size .2s;
}
.focus-text.vert{writing-mode:vertical-rl;text-orientation:mixed;max-height:56vh;overflow:auto;line-height:2.4}
.focus-meta{margin-top:12px;display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap}
.focus-nav{display:flex;justify-content:center;gap:14px;margin-top:18px}
.kbd-hint{margin-top:12px;font-size:11px;color:var(--faint);letter-spacing:.1em}

/* 视图调节面板 */
.pop{
  position:absolute;z-index:80;top:46px;right:0;background:var(--card);border:1px solid var(--line-2);
  border-radius:var(--r-card);box-shadow:var(--shadow-lg);padding:16px;width:262px;
  animation:pop .22s var(--ease) both;
}
.pop h4{font-size:12.5px;color:var(--ink-2);letter-spacing:.16em;margin-bottom:10px;font-weight:600}
.pop .grp{margin-bottom:14px}
.pop .grp:last-child{margin-bottom:0}
.stepper{display:flex;align-items:center;gap:10px}
.stepper .btn{padding:4px 12px}
.stepper .val{flex:1;text-align:center;font-size:13px;color:var(--ink-2)}
.swatches{display:flex;gap:8px}
.swatch{
  width:38px;height:38px;border-radius:var(--r-small);border:1.5px solid var(--line-2);
  cursor:pointer;position:relative;transition:transform .15s;
}
.swatch:active{transform:scale(.92)}
.swatch.on{border-color:var(--ochre);box-shadow:0 0 0 2px var(--ochre-soft)}
.swatch.xuan{background:#f4ecdd}.swatch.juan{background:#eddfc4}.swatch.night{background:#211b15}
.swatch span{position:absolute;left:50%;bottom:-20px;transform:translateX(-50%);font-size:10.5px;color:var(--ink-2);white-space:nowrap}
.sw-row{padding-top:20px}
.check-row{display:flex;align-items:center;justify-content:space-between;font-size:13.5px;padding:5px 0;cursor:pointer}
.check-row input{accent-color:var(--ochre);width:16px;height:16px}

/* 详情弹层 */
.dtl-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:12px;padding-right:30px}
.dtl-text{
  font-family:var(--font-kai);font-size:var(--fs-read,20px);line-height:var(--lh-read,1.95);
  letter-spacing:.05em;white-space:pre-wrap;
  background:var(--card-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;outline:1px solid var(--line);outline-offset:-6px;
}
.dtl-acts{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.rate-trio{display:flex;gap:8px;margin-top:12px}
.rate-btn{
  flex:1;padding:10px 0 8px;border-radius:var(--r-card);border:1.5px solid var(--line);
  background:var(--card);text-align:center;font-size:13.5px;letter-spacing:.1em;
  transition:all .18s;display:flex;flex-direction:column;gap:2px;align-items:center;
}
.rate-btn small{font-size:10.5px;color:var(--faint);letter-spacing:.03em}
.rate-btn.w:hover,.rate-btn.w.on{border-color:var(--c-weak);background:var(--seal-bg);color:var(--c-weak)}
.rate-btn.o:hover,.rate-btn.o.on{border-color:var(--c-ok);background:var(--gold-bg);color:var(--c-ok)}
.rate-btn.g:hover,.rate-btn.g.on{border-color:var(--c-master);background:var(--green-bg);color:var(--c-master)}

/* ---------- 10. 背诵 ---------- */
.recite-stage{max-width:720px;margin:0 auto}
.scope-chip .n{font-weight:700;margin-left:4px}
.recite-card{
  perspective:1200px;margin-top:16px;
}
.rc-inner{
  position:relative;transform-style:preserve-3d;transition:transform .5s var(--ease);
  background:var(--card);border:1px solid var(--line-2);border-radius:14px;
  box-shadow:var(--shadow);padding:30px 30px 24px;cursor:pointer;
  outline:1px solid var(--line);outline-offset:-8px;min-height:300px;
  display:flex;flex-direction:column;gap:18px;
}
.recite-card.flip .rc-inner{animation:flipIn .45s var(--ease)}
@keyframes flipIn{from{transform:rotateY(-8deg);opacity:.4}}
.rc-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.rc-prog{margin-left:auto;font-size:12px;color:var(--faint);letter-spacing:.12em}
.rc-text{
  font-family:var(--font-kai);font-size:var(--fs-read,21px);line-height:var(--lh-read,1.95);
  letter-spacing:.05em;flex:1;white-space:pre-wrap;word-break:break-word;
}
.rc-text .mk{color:var(--ochre);opacity:.75}
.rc-hint{
  font-size:13px;color:var(--ink-2);letter-spacing:.3em;background:var(--paper-2);
  border-radius:var(--r-small);padding:7px 12px;display:none;
}
.rc-hint.show{display:block;animation:fadeUp .25s var(--ease)}
.rc-tools{display:flex;gap:8px;flex-wrap:wrap}
.rate-bar{display:flex;gap:10px;margin-top:16px}
.rate-bar .rate-btn{padding:13px 0 10px;font-size:14.5px;border-radius:12px}
.rate-btn.stamp .seal-mini{animation:stampIn .4s var(--ease) both}
.seal-mini{
  width:22px;height:22px;display:grid;place-items:center;border-radius:var(--r-small);
  background:var(--c-master);color:#f3ecdb;font-family:var(--font-kai);font-size:14px;
}
@keyframes stampIn{0%{transform:scale(1.9) rotate(-10deg);opacity:0}60%{transform:scale(.94) rotate(2deg);opacity:1}100%{transform:scale(1) rotate(0)}}
.session-summary{text-align:center;padding:30px 10px}
.session-summary .big{font-family:var(--font-kai);font-size:40px;color:var(--ochre);line-height:1.2}
.sum-row{display:flex;justify-content:center;gap:26px;margin:18px 0 22px}
.sum-row .it b{display:block;font-size:22px}
.sum-row .it span{font-size:12px;color:var(--ink-2);letter-spacing:.1em}
.sum-row .it.w b{color:var(--c-weak)} .sum-row .it.o b{color:var(--c-ok)} .sum-row .it.g b{color:var(--c-master)}

/* ---------- 11. 测试 ---------- */
.q-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.q-prog{flex:1;height:6px;background:var(--paper-2);border-radius:99px;overflow:hidden}
.q-prog i{display:block;height:100%;background:var(--ochre);border-radius:99px;transition:width .4s var(--ease)}
.q-score{font-size:13px;color:var(--ink-2);white-space:nowrap}
.q-score b{color:var(--ochre)}
.q-card{padding:26px 26px 22px}
.q-type{font-size:12px;color:var(--ochre);letter-spacing:.2em;margin-bottom:10px;font-weight:600}
.q-stem{font-family:var(--font-kai);font-size:var(--fs-read,20px);line-height:var(--lh-read,1.95);letter-spacing:.04em;white-space:pre-wrap}
.q-stem .blank-in{
  display:inline-block;width:5.2em;margin:0 3px;padding:1px 8px;
  border:0;border-bottom:2px solid var(--ochre);background:var(--paper-2);
  border-radius:var(--r-small) var(--r-small) 0 0;font-family:var(--font-kai);
  font-size:.92em;text-align:center;letter-spacing:.08em;outline:none;vertical-align:baseline;
}
.q-stem .blank-in:focus{background:var(--gold-bg)}
.q-stem .blank-in.ok{border-color:var(--c-master);color:var(--c-master)}
.q-stem .blank-in.bad{border-color:var(--c-weak);color:var(--c-weak);text-decoration:line-through}
.q-stem .blank-ans{color:var(--c-master);font-weight:600}
.q-opts{display:grid;gap:10px;margin-top:18px}
body.layout-landscape .q-opts.two{grid-template-columns:1fr 1fr}
.opt{
  text-align:left;padding:13px 16px;border-radius:var(--r-card);border:1.5px solid var(--line);
  background:var(--card);font-size:14.5px;line-height:1.7;transition:all .16s;
  font-family:var(--font-kai);letter-spacing:.03em;
}
.opt:hover{border-color:var(--ochre)}
.opt:active{transform:scale(.98)}
.opt.right{border-color:var(--c-master);background:var(--green-bg);color:var(--c-master);font-weight:600}
.opt.wrong{border-color:var(--c-weak);background:var(--seal-bg);color:var(--c-weak)}
.opt.dim{opacity:.5}
.opt .tag{font-size:11px;color:var(--faint);margin-right:8px;font-family:var(--font-song)}
.q-actions{display:flex;gap:10px;margin-top:18px;align-items:center}
.q-fb{margin-top:16px;padding:12px 16px;border-radius:var(--r-card);font-size:13.5px;line-height:1.8;animation:fadeUp .25s var(--ease)}
.q-fb.good{background:var(--green-bg);color:var(--c-master)}
.q-fb.bad{background:var(--seal-bg);color:var(--c-weak)}
.q-fb .full{font-family:var(--font-kai);font-size:14.5px;color:var(--ink);margin-top:6px;letter-spacing:.04em}

/* 连线 */
.match-zone{position:relative;margin-top:16px}
.match-zone svg.wires{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:0}
.match-cols{display:grid;grid-template-columns:1fr 1fr;gap:14px;position:relative;z-index:1}
.match-col{display:flex;flex-direction:column;gap:10px}
.mnode{
  padding:12px 14px;border-radius:var(--r-card);border:1.5px solid var(--line);
  background:var(--card);font-size:13.5px;line-height:1.6;min-height:52px;
  transition:all .16s;text-align:left;font-family:var(--font-kai);
}
.mnode:hover{border-color:var(--ochre)}
.mnode.sel{border-color:var(--ochre);background:var(--ochre-soft);color:var(--ochre);font-weight:600}
.mnode.locked{border-color:var(--c-master);background:var(--green-bg);color:var(--c-master);opacity:.85;pointer-events:none}
.mnode.err{animation:shake .3s;border-color:var(--c-weak);background:var(--seal-bg)}
@keyframes shake{0%,100%{transform:none}25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
.mnode small{display:block;font-family:var(--font-song);font-size:11px;color:var(--faint);margin-top:2px}

/* 排序 */
.order-pool,.order-ans{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;min-height:46px}
.order-ans{padding:10px;background:var(--paper-2);border-radius:var(--r-card);border:1px dashed var(--line-2)}
.ochunk{
  padding:8px 14px;border-radius:99px;border:1.5px solid var(--line);background:var(--card);
  font-family:var(--font-kai);font-size:14.5px;letter-spacing:.03em;transition:all .15s;
}
.ochunk:hover{border-color:var(--ochre)}
.ochunk:active{transform:scale(.95)}
.order-ans .ochunk{border-color:var(--ochre-soft)}
.ochunk.used{opacity:.28;pointer-events:none}
.ochunk.pop{animation:pop .2s var(--ease)}

/* 结果页 */
.res-hero{text-align:center;padding:26px 0 8px}
.res-hero .score{font-family:var(--font-kai);font-size:52px;color:var(--ochre);line-height:1.1}
.res-hero .cap{color:var(--ink-2);font-size:13px;letter-spacing:.2em;margin-top:4px}
.res-list{display:flex;flex-direction:column;gap:8px;margin-top:16px;text-align:left}
.res-row{
  display:flex;gap:10px;align-items:flex-start;padding:11px 14px;border-radius:var(--r-card);
  background:var(--card);border:1px solid var(--line);font-size:13.5px;
}
.res-row .mark{font-weight:700;flex:none}
.res-row.ok .mark{color:var(--c-master)} .res-row.bad .mark{color:var(--c-weak)}
.res-row .t{flex:1;font-family:var(--font-kai)}
.res-row .t small{display:block;font-family:var(--font-song);color:var(--faint);font-size:11px;margin-top:2px}
.res-row .add{flex:none;align-self:center}

/* ---------- 12. 图谱 ---------- */
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
body.layout-portrait .stat-band{grid-template-columns:1fr 1fr}
.stat-tile{padding:16px 18px}
.stat-tile .num{font-size:26px;font-weight:700;line-height:1.2;font-family:var(--font-kai)}
.stat-tile .cap{font-size:12px;color:var(--ink-2);letter-spacing:.12em;margin-top:2px}
.stat-tile .num.c-weak{color:var(--c-weak)}.stat-tile .num.c-ok{color:var(--c-ok)}
.stat-tile .num.c-master{color:var(--c-master)}.stat-tile .num.c-ochre{color:var(--ochre)}
.ring-wrap{display:flex;gap:20px;align-items:center}
.ring{transform:rotate(-90deg)}
.ring .trk{fill:none;stroke:var(--paper-2);stroke-width:7}
.ring .val{fill:none;stroke:var(--ochre);stroke-width:7;stroke-linecap:round;transition:stroke-dashoffset .9s var(--ease)}
.ring-c{display:flex;align-items:center;justify-content:center;position:relative}
.ring-c .lab{position:absolute;text-align:center}
.ring-c .lab b{font-size:22px;font-family:var(--font-kai)}
.ring-c .lab span{display:block;font-size:10.5px;color:var(--ink-2);letter-spacing:.14em}

.book-cards{display:grid;gap:14px}
body.layout-landscape .book-cards{grid-template-columns:repeat(3,1fr)}
.book-card{padding:18px 18px 16px;display:flex;gap:16px;align-items:center;cursor:pointer;transition:transform .18s var(--ease),box-shadow .2s}
.book-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.book-card .inf{flex:1;min-width:0}
.book-card h3{font-family:var(--font-kai);font-size:16.5px;letter-spacing:.1em}
.book-card .cap{font-size:11.5px;color:var(--ink-2);margin:2px 0 10px}
.segbar{display:flex;height:9px;border-radius:99px;overflow:hidden;background:var(--paper-2)}
.segbar i{display:block;height:100%;transition:width .7s var(--ease)}
.segbar .b1{background:var(--c-weak)}.segbar .b2{background:var(--c-ok)}.segbar .b3{background:var(--c-master)}
.legend{display:flex;gap:12px;margin-top:8px;font-size:11px;color:var(--ink-2);flex-wrap:wrap}
.legend .dot{width:7px;height:7px;margin-right:4px}

.unit-bars{display:flex;flex-direction:column;gap:9px}
.unit-bar{display:grid;grid-template-columns:120px 1fr 56px;gap:10px;align-items:center;font-size:12.5px}
body.layout-portrait .unit-bar{grid-template-columns:96px 1fr 48px}
.unit-bar .nm{color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.unit-bar .bar{height:8px;background:var(--paper-2);border-radius:99px;overflow:hidden;display:flex}
.unit-bar .bar i{height:100%;transition:width .7s var(--ease)}
.unit-bar .pc{text-align:right;color:var(--faint);font-size:11.5px}

/* 条文地图 */
.map-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(15px,1fr));gap:3.5px;max-width:980px}
body.layout-landscape .map-grid{grid-template-columns:repeat(auto-fill,minmax(17px,1fr))}
.mcell{
  aspect-ratio:1;border-radius:3px;background:var(--paper-2);
  border:1px solid var(--line);cursor:pointer;transition:transform .12s;
  padding:0;
}
.mcell:hover{transform:scale(1.35);z-index:2;position:relative}
.mcell.s1{background:var(--c-weak);border-color:var(--c-weak)}
.mcell.s2{background:var(--c-ok);border-color:var(--c-ok)}
.mcell.s3{background:var(--c-master);border-color:var(--c-master)}
.mcell.fav{box-shadow:inset 0 0 0 1px var(--gold)}

/* 热力图 */
.heatmap{display:grid;grid-auto-flow:column;grid-template-rows:repeat(7,1fr);gap:3.5px;max-width:980px;overflow-x:auto;padding-bottom:6px}
.hcell{width:13px;height:13px;border-radius:3px;background:var(--paper-2);border:1px solid var(--line)}
.hcell.h1{background:#dcb9a4;border-color:#dcb9a4}
.hcell.h2{background:#c98b6d;border-color:#c98b6d}
.hcell.h3{background:#b25c3d;border-color:#b25c3d}
.hcell.h4{background:var(--ochre-deep);border-color:var(--ochre-deep)}
.hm-cap{display:flex;gap:14px;align-items:center;margin-top:8px;font-size:11px;color:var(--faint)}
.hm-cap .cells{display:flex;gap:3px;align-items:center}

/* 里程碑 */
.miles{display:flex;flex-wrap:wrap;gap:12px}
.mile{
  display:flex;flex-direction:column;align-items:center;gap:6px;padding:14px 10px;flex:1;min-width:96px;
  border:1px dashed var(--line-2);border-radius:var(--r-card);color:var(--faint);transition:all .3s;
}
.mile .ms{
  width:44px;height:44px;display:grid;place-items:center;border-radius:var(--r-seal);
  border:1.5px dashed var(--line-2);font-family:var(--font-kai);font-size:15px;transition:all .3s;
}
.mile.hit{border-style:solid;color:var(--ink)}
.mile.hit .ms{background:var(--seal);border:0;color:#f7efe0;box-shadow:inset 0 0 0 1.5px rgba(247,239,224,.35)}
.mile.hit{animation:pop .5s var(--ease)}
.mile span{font-size:11.5px;letter-spacing:.06em}

/* ---------- 13. 设置弹层 ---------- */
.set-row{display:flex;align-items:center;justify-content:space-between;gap:8px 12px;padding:11px 0;border-bottom:1px dashed var(--line);flex-wrap:wrap}
.set-row:last-child{border-bottom:0}
.set-row .lab{font-size:14px}
.set-row .lab small{display:block;color:var(--faint);font-size:11.5px;margin-top:1px}
.set-sec{font-size:12px;color:var(--ochre);letter-spacing:.22em;margin:18px 0 4px;font-weight:600}
.set-sec:first-child{margin-top:0}

/* ---------- 14. 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}