/* =====================================================================
   妙笔 · 小学语文写作智能体 —— 设计系统（新中式 · 宣纸墨韵）
   底色：宣纸暖白   文字：墨   主色：石绿   点缀：朱砂 / 藤黄 / 群青 / 竹青 / 赭石 / 天青
   rem 自适应：1K / 2K / 4K / 任意缩放
   ===================================================================== */
:root {
  --bg: #F4F1EA;
  --card: #FFFEFB;
  --card-2: #FAF7F0;
  --ink: #1F2A2E;
  --ink-2: #4A555B;
  --ink-3: #858D91;
  --ink-4: #B5B9B8;
  --line: #E6DFD1;
  --line-2: #F0EBE1;

  --primary: #1E6F66;   /* 石绿 */
  --primary-d: #165750;
  --red: #C8472D;       /* 朱砂 */
  --gold: #D4961C;      /* 藤黄 */
  --blue: #2E5C96;      /* 群青 */
  --green: #5D8A3A;     /* 竹青 */
  --brown: #9A6038;     /* 赭石 */
  --cyan: #3B8EA5;      /* 天青 */
  --rose: #B5656B;      /* 豆沙 */
  --inkc: #39444A;      /* 墨灰 */

  --primary-50: #E5F0ED;
  --red-50: #FAEAE4;
  --gold-50: #FAF1DC;
  --blue-50: #E7EDF6;
  --green-50: #ECF2E4;
  --brown-50: #F4EBE2;
  --cyan-50: #E4F1F4;
  --rose-50: #F6E9EA;
  --ink-50: #EDEFEF;

  --r-sm: .45rem;
  --r: .6rem;
  --r-lg: .8rem;
  --sh-1: 0 1px 2px rgba(64, 52, 30, .05), 0 4px 14px -8px rgba(64, 52, 30, .14);
  --sh-2: 0 2px 4px rgba(64, 52, 30, .05), 0 16px 36px -16px rgba(64, 52, 30, .30);
  --ease: cubic-bezier(.2, .8, .2, 1);
  --side-w: 15.5rem;
  --font: "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", system-ui, sans-serif;
  --kai: "LXGW WenKai Screen", "LXGW WenKai", "STKaiti", "KaiTi", "楷体", "Kaiti SC", serif;
  --serif: "MB Serif", "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STZhongsong", "STSong", "SimSun", serif;
  --paper: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .42 0 0 0 0 .35 0 0 0 0 .22 0 0 0 .07 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

* { box-sizing: border-box; margin: 0; padding: 0; }
/* 按视口宽高等比缩放：1600×900≈15px · 1920×1080≈17px · 2560×1440≈21px · 3440×1440 带鱼屏≈21px · 3840×2160≈29px */
html { font-size: clamp(13.5px, min(.62vw + 5px, 1.1vh + 5px), 34px); -webkit-text-size-adjust: 100%; }
body { font-family: var(--font); color: var(--ink); background: var(--bg) var(--paper); line-height: 1.6; min-height: 100vh; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
img { max-width: 100%; display: block; }
::selection { background: rgba(30, 111, 102, .18); }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: rgba(120, 110, 90, .25); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: rgba(120, 110, 90, .42); }
::-webkit-scrollbar-track { background: transparent; }

.i { width: 1.1em; height: 1.1em; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; vertical-align: -.17em; }
.kai { font-family: var(--kai); }
.serif { font-family: var(--serif); }
.num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }
.muted { color: var(--ink-3); }
.hidden { display: none !important; }
.c-primary { color: var(--primary); } .c-red { color: var(--red); } .c-gold { color: var(--gold); } .c-blue { color: var(--blue); }

/* ---------------------------------------------------------- 背景：宣纸 + 远山 */
.bg-ink { position: fixed; inset: auto 0 0 auto; width: 62vw; height: 30vh; z-index: -1; pointer-events: none; opacity: .5; }
.bg-ink svg { width: 100%; height: 100%; }

/* ---------------------------------------------------------- 印章 / 智能体头像 */
.seal { display: inline-grid; place-items: center; width: 2.6rem; height: 2.6rem; flex-shrink: 0; border-radius: .38rem; color: #FFF7EE; background: var(--red);
  font-family: var(--kai); font-weight: 700; font-size: 1.35rem; position: relative; box-shadow: 0 4px 10px -4px rgba(200, 71, 45, .6); }
.seal::after { content: ""; position: absolute; inset: .17rem; border: 1.5px solid rgba(255, 247, 238, .75); border-radius: .22rem; }
.seal.sm { width: 1.9rem; height: 1.9rem; font-size: 1rem; }
.seal.lg { width: 3.6rem; height: 3.6rem; font-size: 1.9rem; }
.seal.green { background: var(--primary); box-shadow: 0 4px 10px -4px rgba(30, 111, 102, .6); }
.ai-av { width: 2.5rem; height: 2.5rem; border-radius: 50%; flex-shrink: 0; display: grid; place-items: center; position: relative; color: #fff;
  background: var(--primary); font-family: var(--kai); font-weight: 700; font-size: 1.15rem; box-shadow: 0 0 0 3px var(--card), 0 0 0 4px var(--line); }
.ai-av::after { content: ""; position: absolute; right: -.05rem; bottom: .05rem; width: .62rem; height: .62rem; border-radius: 50%; background: var(--red); border: 2px solid var(--card); }
.ai-av.lg { width: 4rem; height: 4rem; font-size: 1.8rem; }
.ai-av.sm { width: 2rem; height: 2rem; font-size: .92rem; }

/* ---------------------------------------------------------- 框架布局 */
.app { display: grid; grid-template-columns: var(--side-w) minmax(0, 1fr); min-height: 100vh; }
.side { grid-column: 1; grid-row: 1; position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; padding: 1rem .75rem .9rem;
  background: rgba(251, 249, 244, .92); border-right: 1px solid var(--line); z-index: 40; }
/* 左上角署名占用顶部一行：侧栏和窄屏顶栏下移，避免与品牌和菜单按钮重叠 */
.has-sign .side { padding-top: 2.35rem; }
.main-wrap { grid-column: 2; grid-row: 1; min-width: 0; display: flex; flex-direction: column; }
.brand { display: flex; align-items: center; gap: .7rem; padding: .2rem .45rem 1rem; border-bottom: 1px dashed var(--line); margin-bottom: .4rem; }
.brand .bn { font-family: var(--serif); font-size: 1.36rem; font-weight: 900; letter-spacing: .12em; line-height: 1.15; display: block; }
.brand small { display: block; font-size: .68rem; color: var(--ink-3); letter-spacing: .1em; margin-top: .12rem; }

.nav { flex: 1; overflow-y: auto; margin: 0 -.2rem; padding: 0 .2rem; }
.nav-title { font-size: .72rem; color: var(--ink-4); font-weight: 700; letter-spacing: .16em; padding: .85rem .8rem .35rem; }
.nav a { display: flex; align-items: center; gap: .72rem; padding: .62rem .85rem; border-radius: var(--r); color: var(--ink-2); font-weight: 600; font-size: .97rem;
  position: relative; transition: background .2s, color .2s; margin-bottom: .12rem; }
.nav a .i { width: 1.2rem; height: 1.2rem; }
.nav a:hover { background: rgba(30, 111, 102, .06); color: var(--primary); }
.nav a.on { background: var(--primary-50); color: var(--primary); font-weight: 700; }
.nav a.on::before { content: ""; position: absolute; left: 0; top: 22%; bottom: 22%; width: 3px; border-radius: 3px; background: var(--primary); }
.nav .nb { margin-left: auto; font-style: normal; font-size: .68rem; font-weight: 700; padding: 0 .45rem; border-radius: .3rem; background: var(--red); color: #fff; line-height: 1.6; }
.nav .nb.soft { background: var(--gold-50); color: #A16F0B; border: 1px solid #F0DDAE; }

.side-ai { margin-top: .6rem; padding: .7rem .75rem; border-radius: var(--r); background: var(--card); border: 1px solid var(--line); }
.side-ai .row { display: flex; align-items: center; gap: .6rem; }
.side-ai b { font-size: .9rem; }
.side-ai small { display: block; font-size: .72rem; color: var(--ink-3); }
.side-ai .meter { display: grid; grid-template-columns: repeat(3, 1fr); gap: .3rem; margin-top: .55rem; text-align: center; }
.side-ai .meter div { background: var(--card-2); border-radius: .35rem; padding: .25rem 0; }
.side-ai .meter b { display: block; font-size: .85rem; color: var(--primary); }
.side-ai .meter span { font-size: .64rem; color: var(--ink-3); }
.dot-live { width: .5rem; height: .5rem; border-radius: 50%; background: #2FA36B; display: inline-block; flex-shrink: 0; box-shadow: 0 0 0 0 rgba(47, 163, 107, .5); animation: live 2s infinite; }
@keyframes live { 0% { box-shadow: 0 0 0 0 rgba(47, 163, 107, .5); } 70% { box-shadow: 0 0 0 .4rem rgba(47, 163, 107, 0); } 100% { box-shadow: 0 0 0 0 rgba(47, 163, 107, 0); } }
.side-user { display: flex; align-items: center; gap: .65rem; padding: .75rem .35rem 0; margin-top: .6rem; border-top: 1px dashed var(--line); }
.side-user .who { flex: 1; min-width: 0; }
.side-user b { font-size: .92rem; display: block; }
.side-user small { font-size: .72rem; color: var(--ink-3); display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.top { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 1rem; padding: .7rem 1.5rem; background: rgba(250, 248, 242, .9);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.top .menu-btn { display: none; }
.top-title { display: flex; align-items: baseline; gap: .8rem; min-width: 0; }
.top-title h1 { font-family: var(--serif); font-size: 1.42rem; font-weight: 900; letter-spacing: .06em; line-height: 1.25; white-space: nowrap; display: flex; align-items: center; gap: .5rem; }
.top-title p { font-size: .84rem; color: var(--ink-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.crumb { font-size: .78rem; color: var(--ink-3); display: flex; align-items: center; gap: .3rem; }
.ticker { margin-left: 1rem; flex: 1; min-width: 0; max-width: 25rem; height: 2.2rem; overflow: hidden; position: relative; border-radius: var(--r); background: var(--card); border: 1px solid var(--line); padding-left: 4.6rem; }
.ticker::before { content: "每日一句"; position: absolute; left: .3rem; top: .3rem; bottom: .3rem; display: grid; place-items: center; padding: 0 .45rem; font-size: .7rem; font-weight: 700; color: #FFF7EE; background: var(--red); border-radius: .3rem; font-family: var(--kai); letter-spacing: .08em; }
.ticker ul { list-style: none; transition: transform .7s var(--ease); }
.ticker li { height: 2.2rem; line-height: 2.1rem; font-family: var(--kai); font-size: 1rem; color: var(--ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; padding-right: .6rem; }
.top-actions { margin-left: auto; display: flex; align-items: center; gap: .55rem; }
.search { position: relative; width: 16rem; }
.search input { width: 100%; height: 2.35rem; border-radius: var(--r); border: 1px solid var(--line); background: var(--card); padding: 0 3.3rem 0 2.3rem; font-size: .9rem; outline: none; transition: border .2s, box-shadow .2s; }
.search input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(30, 111, 102, .12); }
.search > .i { position: absolute; left: .8rem; top: 50%; transform: translateY(-50%); color: var(--ink-3); }
.search kbd { position: absolute; right: .55rem; top: 50%; transform: translateY(-50%); font-size: .66rem; color: var(--ink-3); border: 1px solid var(--line); border-radius: .3rem; padding: 0 .3rem; background: var(--card-2); font-family: var(--font); }
.drop { position: absolute; top: calc(100% + .45rem); right: 0; width: 24rem; max-height: 70vh; overflow: auto; background: var(--card); border-radius: var(--r-lg); box-shadow: var(--sh-2);
  border: 1px solid var(--line); padding: .5rem; opacity: 0; transform: translateY(-6px); pointer-events: none; transition: all .2s var(--ease); z-index: 50; }
.drop.open { opacity: 1; transform: none; pointer-events: auto; }
.drop h6 { font-size: .72rem; color: var(--ink-3); font-weight: 700; letter-spacing: .12em; padding: .45rem .55rem .25rem; }
.drop .it { display: flex; align-items: center; gap: .65rem; padding: .5rem .55rem; border-radius: var(--r-sm); cursor: pointer; font-size: .9rem; }
.drop .it:hover { background: var(--primary-50); }
.drop .it small { color: var(--ink-3); font-size: .76rem; display: block; }
.drop .empty-s { padding: 1rem; text-align: center; color: var(--ink-3); font-size: .9rem; }
.chip-time { display: flex; align-items: center; gap: .4rem; height: 2.35rem; padding: 0 .85rem; border-radius: var(--r); background: var(--card); border: 1px solid var(--line); font-size: .85rem; color: var(--ink-2); white-space: nowrap; }
.chip-time b { font-weight: 700; color: var(--ink); }
.icon-btn { width: 2.35rem; height: 2.35rem; border-radius: var(--r); display: grid; place-items: center; background: var(--card); border: 1px solid var(--line); cursor: pointer; position: relative; transition: all .2s; color: var(--ink-2); }
.icon-btn:hover { color: var(--primary); border-color: rgba(30, 111, 102, .45); }
.icon-btn .badge { position: absolute; top: -.35rem; right: -.35rem; min-width: 1.15rem; height: 1.15rem; padding: 0 .28rem; border-radius: 999px; background: var(--red); color: #fff; font-size: .66rem; font-weight: 700; display: grid; place-items: center; border: 2px solid var(--card); }
.icon-btn .badge.shake { animation: shake 3s ease-in-out infinite; }
@keyframes shake { 0%, 86%, 100% { transform: rotate(0); } 89% { transform: rotate(-14deg); } 93% { transform: rotate(12deg); } 96% { transform: rotate(-6deg); } }
.main { padding: 1.1rem 1.5rem 2.2rem; flex: 1; }

/* ---------------------------------------------------------- 卡片 & 栅格 */
.grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: .95rem; }
.s1 { grid-column: span 1; } .s2 { grid-column: span 2; } .s3 { grid-column: span 3; } .s4 { grid-column: span 4; }
.s5 { grid-column: span 5; } .s6 { grid-column: span 6; } .s7 { grid-column: span 7; } .s8 { grid-column: span 8; }
.s9 { grid-column: span 9; } .s10 { grid-column: span 10; } .s12 { grid-column: span 12; }
.card { background: var(--card); border-radius: var(--r-lg); border: 1px solid var(--line); box-shadow: var(--sh-1); padding: .95rem 1.05rem; position: relative; min-width: 0;
  transition: box-shadow .3s var(--ease), border-color .3s, transform .3s var(--ease); }
.card.hov:hover { border-color: #D8CDB8; box-shadow: var(--sh-2); transform: translateY(-2px); }
.card.tint { background: var(--card-2); }
.ch { display: flex; align-items: center; gap: .6rem; margin-bottom: .75rem; min-height: 2rem; }
.ch .ic { width: 2rem; height: 2rem; border-radius: var(--r-sm); display: grid; place-items: center; flex-shrink: 0; }
.ch .ic .i { width: 1.08rem; height: 1.08rem; }
.ch h3 { font-family: var(--serif); font-size: 1.06rem; font-weight: 700; line-height: 1.3; display: flex; align-items: baseline; gap: .5rem; letter-spacing: .03em; }
.ch h3 .en { font-family: Georgia, "Times New Roman", serif; font-size: .66rem; font-weight: 400; letter-spacing: .18em; color: var(--ink-4); text-transform: uppercase; font-style: italic; }
.ch .sub { font-size: .78rem; color: var(--ink-3); font-weight: 500; }
.ch .right { margin-left: auto; display: flex; align-items: center; gap: .45rem; }
.chart { width: 100%; height: 17rem; }

/* 色块（图标底） */
.bg-primary { background: var(--primary-50); color: var(--primary); } .bg-red { background: var(--red-50); color: var(--red); }
.bg-gold { background: var(--gold-50); color: #B07A0E; } .bg-blue { background: var(--blue-50); color: var(--blue); }
.bg-green { background: var(--green-50); color: var(--green); } .bg-brown { background: var(--brown-50); color: var(--brown); }
.bg-cyan { background: var(--cyan-50); color: var(--cyan); } .bg-rose { background: var(--rose-50); color: var(--rose); }
.bg-ink { background: var(--ink-50); color: var(--inkc); }
.solid-primary { background: var(--primary); color: #fff; } .solid-red { background: var(--red); color: #fff; } .solid-gold { background: var(--gold); color: #fff; }
.solid-blue { background: var(--blue); color: #fff; } .solid-green { background: var(--green); color: #fff; } .solid-brown { background: var(--brown); color: #fff; }
.solid-cyan { background: var(--cyan); color: #fff; } .solid-rose { background: var(--rose); color: #fff; } .solid-ink { background: var(--inkc); color: #fff; }

/* ---------------------------------------------------------- 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .4rem; padding: .56rem 1rem; border-radius: var(--r); font-weight: 650; font-size: .93rem; border: 1px solid transparent;
  cursor: pointer; position: relative; overflow: hidden; white-space: nowrap; transition: background .2s, color .2s, border-color .2s, box-shadow .2s, transform .15s; user-select: none; line-height: 1.3; }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .55; cursor: not-allowed; pointer-events: none; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 2px 0 var(--primary-d); }
.btn-primary:hover { background: var(--primary-d); }
.btn-red { background: var(--red); color: #fff; box-shadow: 0 2px 0 #A23620; }
.btn-red:hover { background: #B03B23; }
.btn-gold { background: var(--gold); color: #fff; box-shadow: 0 2px 0 #A9760F; }
.btn-gold:hover { background: #BE8414; }
.btn-blue { background: var(--blue); color: #fff; box-shadow: 0 2px 0 #224878; }
.btn-blue:hover { background: #264E81; }
.btn-soft { background: var(--primary-50); color: var(--primary); border-color: #CFE2DD; }
.btn-soft:hover { background: #D7E9E4; }
.btn-ghost { background: var(--card); color: var(--ink-2); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn-danger { background: var(--red-50); color: var(--red); border-color: #F1D0C7; }
.btn-danger:hover { background: #F6DCD3; }
.btn-sm { padding: .36rem .7rem; font-size: .84rem; }
.btn-lg { padding: .78rem 1.4rem; font-size: 1.02rem; }
.btn-icon { padding: 0; width: 2.2rem; height: 2.2rem; }
.btn-block { width: 100%; }
.ripple { position: absolute; border-radius: 50%; transform: scale(0); background: rgba(255, 255, 255, .45); animation: ripple .6s linear; pointer-events: none; }
.btn-ghost .ripple, .btn-soft .ripple, .btn-danger .ripple { background: rgba(30, 111, 102, .16); }
@keyframes ripple { to { transform: scale(4); opacity: 0; } }
.spin { width: 1em; height: 1em; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; display: inline-block; animation: rot .7s linear infinite; }
@keyframes rot { to { transform: rotate(360deg); } }

/* ---------------------------------------------------------- 表单 */
.field { display: flex; flex-direction: column; gap: .35rem; margin-bottom: .85rem; }
.field > label { font-size: .86rem; font-weight: 650; color: var(--ink-2); display: flex; align-items: center; gap: .4rem; }
.field > label em { font-style: normal; color: var(--red); }
.input, .select, .textarea { width: 100%; padding: .58rem .8rem; border: 1px solid var(--line); border-radius: var(--r); background: #FFFFFF; font-size: .95rem; outline: none; transition: border .2s, box-shadow .2s; color: var(--ink); }
.input:focus, .select:focus, .textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(30, 111, 102, .12); }
.textarea { resize: vertical; min-height: 6rem; line-height: 1.75; }
.select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23858D91' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right .75rem center; padding-right: 2rem; cursor: pointer; }
.input::placeholder, .textarea::placeholder { color: var(--ink-4); }
.row { display: flex; align-items: center; gap: .6rem; }
.row.wrap { flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.cols-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 .9rem; }
.cols-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 .9rem; }
.switch { position: relative; width: 2.7rem; height: 1.5rem; flex-shrink: 0; display: inline-block; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch span { position: absolute; inset: 0; background: #D7D3C9; border-radius: 999px; cursor: pointer; transition: .25s; }
.switch span::before { content: ""; position: absolute; width: 1.1rem; height: 1.1rem; left: .2rem; top: .2rem; background: #fff; border-radius: 50%; transition: .25s var(--ease); box-shadow: 0 1px 4px rgba(0, 0, 0, .18); }
.switch input:checked + span { background: var(--primary); }
.switch input:checked + span::before { transform: translateX(1.2rem); }
input[type=range] { -webkit-appearance: none; width: 100%; height: 5px; border-radius: 5px; background: linear-gradient(90deg, var(--primary) var(--p, 50%), #E2DCCF var(--p, 50%)); outline: none; }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 1.05rem; height: 1.05rem; border-radius: 50%; background: #fff; border: 3px solid var(--primary); cursor: pointer; box-shadow: 0 1px 5px rgba(0, 0, 0, .2); }

/* ---------------------------------------------------------- 标签 / 分段 / 状态 */
.tag { display: inline-flex; align-items: center; gap: .22rem; padding: .08rem .5rem; border-radius: .3rem; font-size: .76rem; font-weight: 650; line-height: 1.6; white-space: nowrap; border: 1px solid transparent; }
.t-primary { background: var(--primary-50); color: var(--primary); border-color: #CFE2DD; } .t-red { background: var(--red-50); color: var(--red); border-color: #F1D3CA; }
.t-gold { background: var(--gold-50); color: #A16F0B; border-color: #F0DDAE; } .t-blue { background: var(--blue-50); color: var(--blue); border-color: #D3DEEE; }
.t-green { background: var(--green-50); color: var(--green); border-color: #D7E5C9; } .t-brown { background: var(--brown-50); color: var(--brown); border-color: #E8D6C6; }
.t-cyan { background: var(--cyan-50); color: var(--cyan); border-color: #CBE3EA; } .t-rose { background: var(--rose-50); color: var(--rose); border-color: #ECD3D5; }
.t-gray { background: var(--ink-50); color: var(--ink-2); border-color: #E0E3E3; }
.seg { display: inline-flex; background: var(--card-2); padding: .2rem; border-radius: var(--r); gap: .1rem; border: 1px solid var(--line); flex-wrap: wrap; }
.seg button { border: 0; background: transparent; padding: .3rem .75rem; border-radius: .4rem; font-size: .85rem; font-weight: 650; color: var(--ink-2); cursor: pointer; transition: all .2s; display: inline-flex; align-items: center; gap: .3rem; }
.seg button:hover { color: var(--primary); }
.seg button.on { background: var(--card); color: var(--primary); box-shadow: 0 1px 3px rgba(64, 52, 30, .15); }
.seg button .c { font-size: .7rem; padding: 0 .35rem; border-radius: .3rem; background: var(--primary-50); color: var(--primary); }
.status { display: inline-flex; align-items: center; gap: .3rem; font-size: .78rem; font-weight: 650; padding: .06rem .5rem; border-radius: .3rem; white-space: nowrap; }
.status::before { content: ""; width: .42rem; height: .42rem; border-radius: 50%; background: currentColor; }
.st-submitted { background: var(--gold-50); color: #A16F0B; }
.st-ai_done { background: var(--blue-50); color: var(--blue); }
.st-graded { background: var(--primary-50); color: var(--primary); }
.st-none { background: var(--ink-50); color: var(--ink-3); }

/* ---------------------------------------------------------- 头像 */
.av { width: 2.2rem; height: 2.2rem; border-radius: 50%; display: inline-grid; place-items: center; color: #fff; font-weight: 700; font-size: .8rem; flex-shrink: 0; letter-spacing: -.02em; }
.av.lg { width: 3.4rem; height: 3.4rem; font-size: 1.1rem; }
.av.xl { width: 4.4rem; height: 4.4rem; font-size: 1.4rem; }
.av.sm { width: 1.85rem; height: 1.85rem; font-size: .7rem; }
.c0 { background: #1E6F66; } .c1 { background: #C8472D; } .c2 { background: #D4961C; } .c3 { background: #2E5C96; }
.c4 { background: #5D8A3A; } .c5 { background: #9A6038; } .c6 { background: #3B8EA5; } .c7 { background: #B5656B; }

/* ---------------------------------------------------------- 弹窗 / 抽屉 / 提示 */
.mask { position: fixed; inset: 0; background: rgba(36, 32, 24, .32); z-index: 90; display: flex; align-items: center; justify-content: center; padding: 1rem; opacity: 0; pointer-events: none; transition: opacity .25s; }
.mask.open { opacity: 1; pointer-events: auto; }
.modal { width: min(42rem, 100%); max-height: 90vh; overflow: auto; background: var(--card); border-radius: var(--r-lg); border: 1px solid var(--line); box-shadow: 0 30px 70px -20px rgba(40, 30, 10, .4); transform: translateY(14px); transition: transform .35s var(--ease); }
.mask.open .modal { transform: none; }
.modal-h { display: flex; align-items: center; gap: .75rem; padding: 1.1rem 1.3rem .7rem; border-bottom: 1px solid var(--line-2); }
.modal-h h3 { font-family: var(--serif); font-size: 1.18rem; font-weight: 700; letter-spacing: .03em; }
.modal-h p { font-size: .82rem; color: var(--ink-3); }
.modal-h .x { margin-left: auto; }
.modal-b { padding: 1rem 1.3rem; }
.modal-f { padding: .7rem 1.3rem 1.1rem; display: flex; justify-content: flex-end; gap: .55rem; border-top: 1px solid var(--line-2); }
.drawer-mask { justify-content: flex-end; padding: 0; }
.drawer { width: min(52rem, 100vw); height: 100vh; background: var(--bg) var(--paper); overflow-y: auto; transform: translateX(100%); transition: transform .4s var(--ease); box-shadow: -20px 0 50px -20px rgba(40, 30, 10, .35); }
.mask.open .drawer { transform: none; }
.drawer-h { position: sticky; top: 0; z-index: 2; display: flex; align-items: center; gap: .85rem; padding: 1rem 1.3rem; background: rgba(250, 248, 242, .96); border-bottom: 1px solid var(--line); }
.drawer-b { padding: 1rem 1.3rem 2rem; display: grid; gap: .9rem; }
#toasts { position: fixed; top: 1rem; right: 1.1rem; z-index: 200; display: flex; flex-direction: column; gap: .5rem; pointer-events: none; }
.toast { pointer-events: auto; display: flex; align-items: center; gap: .65rem; min-width: 15rem; max-width: 28rem; padding: .7rem 1rem; border-radius: var(--r); background: var(--card); box-shadow: var(--sh-2); border: 1px solid var(--line); border-left: 4px solid var(--tc, var(--primary)); font-size: .92rem; font-weight: 600; animation: toast-in .4s var(--ease); }
.toast .ti { width: 1.7rem; height: 1.7rem; border-radius: .4rem; display: grid; place-items: center; flex-shrink: 0; }
.toast.out { animation: toast-out .3s forwards; }
@keyframes toast-in { from { opacity: 0; transform: translateX(24px); } }
@keyframes toast-out { to { opacity: 0; transform: translateX(24px); } }

/* ---------------------------------------------------------- 动效 */
[data-anim] { opacity: 0; animation: fade-up .6s var(--ease) forwards; animation-delay: calc(var(--i, 0) * 55ms); }
@keyframes fade-up { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes pop { 0% { opacity: 0; transform: scale(.9); } 100% { opacity: 1; transform: scale(1); } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
@keyframes stamp { 0% { opacity: 0; transform: scale(1.8) rotate(-12deg); } 60% { opacity: 1; transform: scale(.94) rotate(-4deg); } 100% { opacity: 1; transform: scale(1) rotate(-4deg); } }
.skeleton { background: linear-gradient(90deg, #EFEBE2 25%, #F8F6F1 50%, #EFEBE2 75%); background-size: 200% 100%; animation: shimmer 1.4s infinite; border-radius: .4rem; }
.pop-in { animation: pop .4s var(--ease) both; }
.empty { text-align: center; padding: 2rem 1rem; color: var(--ink-3); }
.empty .em { font-size: 2.3rem; margin-bottom: .3rem; display: inline-block; animation: float 3s ease-in-out infinite; }
.empty p { font-size: .9rem; }
.typing { display: inline-flex; gap: .28rem; align-items: center; padding: .2rem 0; }
.typing i { width: .45rem; height: .45rem; border-radius: 50%; background: var(--primary); animation: typing 1.2s infinite; opacity: .35; }
.typing i:nth-child(2) { animation-delay: .15s; background: var(--gold); }
.typing i:nth-child(3) { animation-delay: .3s; background: var(--red); }
@keyframes typing { 0%, 60%, 100% { transform: translateY(0); opacity: .35; } 30% { transform: translateY(-4px); opacity: 1; } }
.cursor::after { content: "▍"; color: var(--primary); animation: blink 1s steps(2) infinite; margin-left: 1px; }
@keyframes blink { 50% { opacity: 0; } }

/* ---------------------------------------------------------- 通用组件 */
.kpi { padding: .85rem 1rem .6rem; overflow: hidden; }
.kpi::before { content: ""; position: absolute; left: 0; top: 0; right: 0; height: 3px; background: var(--kc, var(--primary)); border-radius: var(--r-lg) var(--r-lg) 0 0; }
.kpi .kh { display: flex; align-items: center; gap: .5rem; }
.kpi .kh .ic { width: 1.8rem; height: 1.8rem; border-radius: .4rem; display: grid; place-items: center; }
.kpi .kh .ic .i { width: .98rem; height: .98rem; }
.kpi .kh span { font-size: .86rem; color: var(--ink-2); font-weight: 650; }
.kpi .kv { display: flex; align-items: baseline; gap: .3rem; margin: .4rem 0 .1rem; }
.kpi .kv b { font-family: var(--serif); font-size: 1.95rem; font-weight: 900; letter-spacing: 0; line-height: 1.1; }
.kpi .kv em { font-style: normal; font-size: .84rem; color: var(--ink-3); font-weight: 600; }
.kpi .kf { display: flex; align-items: center; gap: .45rem; font-size: .76rem; color: var(--ink-3); white-space: nowrap; overflow: hidden; }
.kpi .spark { height: 2.2rem; margin: .3rem -.25rem -.15rem; }
.trend { display: inline-flex; align-items: center; gap: .12rem; font-weight: 700; font-size: .75rem; padding: 0 .35rem; border-radius: .3rem; }
.trend.up { color: var(--primary); background: var(--primary-50); }
.trend.down { color: var(--red); background: var(--red-50); }
.trend.flat { color: var(--ink-3); background: var(--ink-50); }
.progress { height: .42rem; border-radius: 999px; background: #ECE7DC; overflow: hidden; }
.progress i { display: block; height: 100%; border-radius: 999px; background: var(--primary); width: 0; transition: width 1s var(--ease); }
.ring { --p: 0; --c: var(--primary); width: 3.3rem; height: 3.3rem; border-radius: 50%; display: grid; place-items: center; position: relative; flex-shrink: 0; background: conic-gradient(var(--c) calc(var(--p) * 1%), #ECE7DC 0); }
.ring::before { content: ""; position: absolute; inset: .32rem; border-radius: 50%; background: var(--card); }
.ring b { position: relative; font-size: .8rem; font-weight: 800; }
.list-item { display: flex; align-items: center; gap: .7rem; padding: .55rem .5rem; border-radius: var(--r); transition: background .2s; cursor: pointer; }
.list-item:hover { background: rgba(30, 111, 102, .05); }
.divider { height: 1px; background: var(--line); margin: .8rem 0; }
.hint { font-size: .78rem; color: var(--ink-3); }
.pill-group { display: flex; flex-wrap: wrap; gap: .4rem; }
.pill { display: inline-flex; align-items: center; gap: .28rem; padding: .3rem .72rem; border-radius: var(--r); background: var(--card); border: 1px solid var(--line); font-size: .85rem; font-weight: 600; color: var(--ink-2); cursor: pointer; transition: all .2s; }
.pill:hover { border-color: var(--primary); color: var(--primary); }
.pill.on { background: var(--primary); color: #fff; border-color: var(--primary); }
.table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: .88rem; }
.table th { text-align: left; font-size: .76rem; color: var(--ink-3); font-weight: 700; padding: .45rem .6rem; border-bottom: 1px solid var(--line); background: var(--card-2); letter-spacing: .04em; white-space: nowrap; }
.table th:first-child { border-radius: .4rem 0 0 0; } .table th:last-child { border-radius: 0 .4rem 0 0; }
.table td { padding: .5rem .6rem; border-bottom: 1px solid var(--line-2); vertical-align: middle; }
.table tr:hover td { background: rgba(30, 111, 102, .035); }
.table .tr-link { cursor: pointer; }
.mini-bar { display: flex; align-items: center; gap: .4rem; }
.mini-bar .progress { flex: 1; min-width: 3rem; }
.stat-line { display: flex; justify-content: space-between; align-items: center; padding: .38rem 0; border-bottom: 1px dashed var(--line-2); font-size: .88rem; }
.stat-line:last-child { border-bottom: 0; }
.stat-line b { font-weight: 750; }

/* Markdown 渲染 */
.md { font-size: .98rem; line-height: 1.85; color: var(--ink); word-break: break-word; }
.md h1, .md h2, .md h3, .md h4 { font-family: var(--serif); font-size: 1.05rem; font-weight: 700; margin: .9rem 0 .4rem; display: flex; align-items: center; gap: .45rem; color: var(--ink); }
.md h2::before, .md h3::before { content: ""; width: .5rem; height: .5rem; background: var(--red); transform: rotate(45deg); flex-shrink: 0; border-radius: 1px; }
.md > :first-child { margin-top: 0; }
.md p { margin: .3rem 0; }
.md ul, .md ol { margin: .3rem 0 .3rem 1.3rem; }
.md li { margin: .2rem 0; }
.md li::marker { color: var(--primary); }
.md strong { color: var(--primary-d); font-weight: 750; background: linear-gradient(transparent 62%, rgba(212, 150, 28, .25) 0); }
.md blockquote { margin: .55rem 0; padding: .55rem .9rem; border-left: 3px solid var(--gold); background: var(--gold-50); border-radius: 0 .5rem .5rem 0; font-family: var(--kai); font-size: 1.04rem; color: #6B4B08; }
.md code { background: var(--primary-50); color: var(--primary-d); padding: .03rem .3rem; border-radius: .3rem; font-size: .9em; }
.md table { border-collapse: collapse; margin: .55rem 0; width: 100%; font-size: .9rem; background: #fff; }
.md th { background: var(--card-2); color: var(--ink); font-weight: 700; }
.md th, .md td { border: 1px solid var(--line); padding: .4rem .6rem; text-align: left; }
.md hr { border: 0; border-top: 1px dashed var(--line); margin: .7rem 0; }

/* ---------------------------------------------------------- 作文纸 & 批注 */
.paper-view { position: relative; background: #FFFDF8; border: 1px solid #E8D9C2; border-radius: .5rem; padding: .9rem 1.4rem 1.2rem 3.4rem; font-family: var(--kai); font-size: 1.18rem; color: var(--ink);
  line-height: 2.5rem; background-image: repeating-linear-gradient(180deg, transparent 0 calc(2.5rem - 1px), rgba(46, 92, 150, .14) calc(2.5rem - 1px) 2.5rem); background-position: 0 .9rem; }
.paper-view::before { content: ""; position: absolute; left: 2.6rem; top: 0; bottom: 0; border-left: 1.5px solid rgba(200, 71, 45, .35); }
.paper-view p { text-indent: 2em; position: relative; margin: 0; }
.paper-view .pn { position: absolute; left: -2.75rem; top: 0; width: 1.6rem; text-align: center; font-style: normal; font-family: var(--serif); font-size: .72rem; color: var(--ink-4); text-indent: 0; }
.paper-view h2 { text-align: center; font-family: var(--serif); font-weight: 900; font-size: 1.4rem; letter-spacing: .12em; line-height: 2.5rem; margin-bottom: 0; }
.an { cursor: pointer; position: relative; transition: background .2s; }
.an.hl { text-decoration: underline wavy var(--red); text-decoration-thickness: 1.5px; text-underline-offset: .32em; }
.an.hl:hover, .an.hl.on { background: rgba(200, 71, 45, .08); }
.an.sick { text-decoration: underline solid var(--blue); text-decoration-thickness: 1.5px; text-underline-offset: .3em; background: rgba(46, 92, 150, .05); }
.an.sick:hover, .an.sick.on { background: rgba(46, 92, 150, .12); }
ruby.typo { ruby-position: over; border: 1.5px solid var(--red); border-radius: 50%; padding: 0 .12em; }
ruby.typo rt { color: var(--red); font-size: .62em; font-weight: 700; font-family: var(--kai); letter-spacing: 0; }
.an[data-tip]:not([data-tip=""]):hover::after { content: attr(data-tip); position: absolute; left: 0; bottom: calc(100% + .1rem); z-index: 5; white-space: nowrap; max-width: 22rem; overflow: hidden; text-overflow: ellipsis;
  font-family: var(--font); font-size: .74rem; line-height: 1.5; padding: .2rem .55rem; border-radius: .3rem; background: var(--ink); color: #fff; text-indent: 0; pointer-events: none; }
.paper-view.no-hl .an.hl, .paper-view.no-sick .an.sick { text-decoration: none; background: none; }
.paper-view.no-typo ruby.typo { border-color: transparent; } .paper-view.no-typo ruby.typo rt { visibility: hidden; }
.legend { display: flex; gap: .9rem; flex-wrap: wrap; font-size: .78rem; color: var(--ink-2); }
.legend label { display: inline-flex; align-items: center; gap: .35rem; cursor: pointer; user-select: none; }
.legend label input { accent-color: var(--primary); }
.legend .lg-hl { width: 1.5rem; height: .6rem; border-bottom: 2px solid var(--red); border-radius: 0 0 50% 50%; }
.legend .lg-typo { width: .9rem; height: .9rem; border: 1.5px solid var(--red); border-radius: 50%; }
.legend .lg-sick { width: 1.5rem; border-bottom: 2px solid var(--blue); }
.stamp-lv { display: inline-grid; place-items: center; width: 4.4rem; height: 4.4rem; border-radius: 50%; border: 3px double var(--red); color: var(--red); font-family: var(--kai); font-weight: 700; font-size: 1.25rem;
  transform: rotate(-12deg); letter-spacing: .1em; animation: stamp .7s var(--ease) both; background: rgba(255, 253, 248, .6); }

/* ---------------------------------------------------------- 响应式 */
@media (max-width: 1500px) { .ticker { max-width: 17rem; } .search { width: 13rem; } }
@media (max-width: 1280px) {
  .ticker { display: none; }
  .s2 { grid-column: span 4; } .s3 { grid-column: span 6; } .s4 { grid-column: span 6; } .s5 { grid-column: span 6; }
  .s7, .s8, .s9, .s10 { grid-column: span 12; }
  .top-title p { display: none; }
}
@media (max-width: 1100px) {
  :root { --side-w: 4.8rem; }
  .brand .bn, .brand small, .nav a span, .nav-title, .side-ai, .side-user .who, .nav .nb { display: none; }
  .brand { justify-content: center; padding: .2rem 0 .9rem; }
  .nav a { justify-content: center; padding: .75rem; }
  .side-user { justify-content: center; flex-direction: column; }
  .chip-time { display: none; }
}
@media (max-width: 760px) {
  :root { --side-w: 0px; }
  html { font-size: 14px; }
  .side { position: fixed; left: 0; width: 15rem; transform: translateX(-100%); transition: transform .3s var(--ease); }
  .side.open { transform: none; }
  .side.open .brand .bn, .side.open .brand small, .side.open .nav a span, .side.open .nav-title, .side.open .side-user .who { display: block; }
  .side.open .nav a { justify-content: flex-start; }
  .top { padding: .6rem .9rem; }
  .top .menu-btn { display: grid; }
  .has-sign .top { padding-top: 2.1rem; }
  .search { display: none; }
  .main { padding: .9rem; }
  .s2, .s3, .s4, .s5, .s6, .s7, .s8, .s9, .s10, .s12 { grid-column: span 12; }
  .cols-2, .cols-3 { grid-template-columns: 1fr; }
}
@media print {
  .side, .top, .bg-ink, .no-print, #toasts { display: none !important; }
  .app { display: block; } .main { padding: 0; }
  .card { box-shadow: none; } body { background: #fff; }
}

/* ---------------------------------------------------------- 文学排版细节 */
.display { font-family: var(--serif); font-weight: 900; letter-spacing: .04em; }
.serif-num { font-family: var(--serif); font-weight: 900; }
.rule { height: 0; border-top: 1px solid var(--ink); opacity: .85; margin: .5rem 0; }
.rule.double { border-top: 3px double var(--ink); opacity: .6; }
.eyebrow { font-family: Georgia, "Times New Roman", serif; font-style: italic; font-size: .72rem; letter-spacing: .22em; text-transform: uppercase; color: var(--ink-3); }
.quote-mark { font-family: Georgia, serif; font-size: 3rem; line-height: 1; color: var(--red); opacity: .25; }
.paper-lines { background-image: repeating-linear-gradient(transparent 0 calc(2.1rem - 1px), rgba(200, 71, 45, .16) calc(2.1rem - 1px) 2.1rem); line-height: 2.1rem; }

/* ---------------------------------------------------------- 锦囊引文框（通用） */
.tip-box { margin-top: .6rem; padding: .7rem .9rem .7rem 2.4rem; background: #FBF6EA; border: 1px solid #EEE0C6; border-radius: .55rem; font-family: var(--kai); font-size: 1rem; line-height: 1.75; color: #5B4310; position: relative; }
.tip-box::before { content: "“"; position: absolute; left: .55rem; top: -.1rem; font-family: var(--serif); font-size: 2.6rem; color: var(--gold); line-height: 1; }
.tip-box b { font-family: var(--serif); color: var(--red); display: block; font-size: .85rem; margin-bottom: .15rem; letter-spacing: .1em; }

/* =====================================================================
   师生双端：身份显隐、侧栏余额、消息铃铛
   ===================================================================== */
.role-student .t-only { display: none !important; }
.role-teacher .s-only { display: none !important; }
.role-tag { font-style: normal; font-size: .62rem; font-weight: 700; padding: 0 .35rem; border-radius: .25rem; vertical-align: .12rem; margin-left: .2rem; letter-spacing: .06em;
  background: var(--ink); color: #FBF7EE; }
.role-tag.s { background: var(--primary); }
.side-bal { display: flex; align-items: center; gap: .45rem; margin-top: .45rem; padding: .35rem .5rem; border-radius: .35rem; font-size: .74rem; color: var(--ink-2);
  background: linear-gradient(90deg, rgba(212, 150, 28, .12), rgba(212, 150, 28, .03)); border: 1px dashed rgba(212, 150, 28, .45); transition: background .2s; }
.side-bal:hover { background: rgba(212, 150, 28, .18); }
.side-bal .i { width: .95rem; height: .95rem; color: var(--gold); }
.side-bal b { margin-left: auto; font-size: .9rem; color: #A16F0B; }
.side-bal.low b { color: var(--red); }
.drop .dh { display: flex; align-items: center; justify-content: space-between; }
.drop .dh a { font-size: .74rem; color: var(--primary); font-weight: 600; padding: .45rem .55rem .25rem; cursor: pointer; }
.drop .it.note { align-items: flex-start; position: relative; }
.drop .it.note .ni { width: 1.9rem; height: 1.9rem; border-radius: .45rem; display: grid; place-items: center; color: #fff; flex-shrink: 0; }
.drop .it.note .ni .i { width: 1rem; height: 1rem; }
.drop .it.note p { font-size: .78rem; color: var(--ink-2); line-height: 1.5; margin-top: .1rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.drop .it.note.unread { background: rgba(200, 71, 45, .045); }
.drop .it.note.unread::after { content: ""; position: absolute; right: .6rem; top: .8rem; width: .45rem; height: .45rem; border-radius: 50%; background: var(--red); }
.drop .it.note b { font-weight: 700; }
.drop .tabs-s { display: flex; gap: .3rem; padding: .1rem .3rem .4rem; border-bottom: 1px dashed var(--line); margin-bottom: .3rem; }
.drop .tabs-s span { font-size: .74rem; padding: .15rem .5rem; border-radius: .3rem; background: var(--card-2); color: var(--ink-2); }
.drop .tabs-s span b { color: var(--red); margin-left: .2rem; }