/* ============================================================
   湖北专升本英语 · 知识库网页版
   风格：深夜极光 × 液态玻璃（Liquid Glass）
   字体：Fraunces 自托管（public/fonts）＋ 系统中文衬线/黑体
   ============================================================ */

@font-face {
  font-family: "Fraunces";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("fonts/fraunces-latin-wght-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Fraunces";
  font-style: italic;
  font-weight: 100 900;
  font-display: swap;
  src: url("fonts/fraunces-latin-wght-italic.woff2") format("woff2");
}

:root {
  --font-display: "Fraunces", "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-body: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Cascadia Code", Consolas, monospace;

  --cat-00: #fbbf24; --cat-01: #38bdf8; --cat-02: #a78bfa; --cat-03: #f472b6;
  --cat-04: #2dd4bf; --cat-05: #fb923c; --cat-06: #60a5fa; --cat-07: #4ade80;
  --cat-08: #e879f9; --cat-09: #f87171; --cat-99: #94a3b8;

  --accent: #5eead4;
  --accent-2: #fbbf24;
  --radius: 18px;
  --ease: cubic-bezier(.22, 1, .36, 1);

  /* —— 可在「外观设置」里调节的外观变量 —— */
  --blur: 22px;          /* 毛玻璃模糊程度 */
  --glass-alpha: 1;      /* 玻璃面板透明度系数 */
  --bar-alpha: 1;        /* 顶栏透明度系数 */
  --fs: 1;               /* 字号系数 */
  --search-blur: 26px;   /* 搜索下拉的独立模糊 */
  --search-alpha: .93;   /* 搜索下拉的独立底色浓度（越低越透） */
}

[data-theme="dark"] {
  --bg: #05070f;
  --txt: #e9eefb;
  --muted: #93a2c2;
  --faint: #5d6b8c;
  --glass-bg: linear-gradient(158deg, rgba(255,255,255,.075), rgba(255,255,255,.022) 55%, rgba(255,255,255,.045));
  --glass-border: rgba(255,255,255,.11);
  --glass-hi: rgba(255,255,255,.16);
  --shadow: 0 24px 60px -24px rgba(0,0,0,.85);
  --panel: rgba(9,13,26,.62);
  --ink-soft: rgba(255,255,255,.05);
  --code-bg: rgba(2,6,16,.6);
  --mark-bg: rgba(251,191,36,.26);
  --line: rgba(255,255,255,.09);
  --ga1: .075; --ga2: .022; --ga3: .045;
  --search-bg: rgba(7, 11, 22, var(--search-alpha));
}

[data-theme="light"] {
  --bg: #f2ecdc;
  --txt: #23293a;
  --muted: #5f6a80;
  --faint: #97a0b4;
  --glass-bg: linear-gradient(158deg, rgba(255,255,255,.8), rgba(255,255,255,.5) 55%, rgba(255,252,244,.72));
  --glass-border: rgba(255,255,255,.9);
  --glass-hi: rgba(255,255,255,1);
  --shadow: 0 24px 50px -26px rgba(60,50,30,.45);
  --panel: rgba(255,255,255,.66);
  --ink-soft: rgba(30,40,70,.05);
  --code-bg: rgba(35,40,60,.07);
  --mark-bg: rgba(251,191,36,.4);
  --line: rgba(30,40,70,.12);
  --ga1: .8; --ga2: .5; --ga3: .72;
  --search-bg: rgba(255, 255, 252, var(--search-alpha));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: calc(15px * var(--fs));
  background: var(--bg);
  color: var(--txt);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
::selection { background: color-mix(in srgb, var(--accent) 35%, transparent); }
a { color: inherit; }

/* ---------- 背景场景 ---------- */
.scene { position: fixed; inset: 0; z-index: -1; overflow: hidden; background: var(--bg); }
[data-theme="light"] .scene {
  background:
    radial-gradient(58% 48% at 88% -6%, rgba(56,189,248,.30), transparent 62%),
    radial-gradient(52% 44% at 2% 12%, color-mix(in srgb, var(--accent) 34%, transparent), transparent 62%),
    radial-gradient(66% 52% at 52% 112%, rgba(251,191,36,.34), transparent 66%),
    radial-gradient(46% 40% at 105% 78%, rgba(244,114,182,.22), transparent 66%),
    var(--bg);
}
.blob {
  position: absolute; border-radius: 50%;
  filter: blur(90px); opacity: .55; mix-blend-mode: screen;
  animation: drift 26s var(--ease) infinite alternate;
}
[data-theme="light"] .blob { opacity: .5; mix-blend-mode: multiply; filter: blur(70px); }
.blob-a { width: 46vw; height: 46vw; left: -12vw; top: -14vw;
  background: radial-gradient(circle at 35% 35%, color-mix(in srgb, var(--accent) 72%, #0b7285), transparent 65%); }
.blob-b { width: 40vw; height: 40vw; right: -10vw; top: 8vh;
  background: radial-gradient(circle at 60% 40%, #7c3aed, transparent 65%); animation-delay: -7s; }
.blob-c { width: 38vw; height: 38vw; left: 24vw; bottom: -16vw;
  background: radial-gradient(circle at 50% 50%, #d97706, transparent 62%); animation-delay: -13s; opacity: .38; }
.blob-d { width: 30vw; height: 30vw; right: 14vw; bottom: -8vw;
  background: radial-gradient(circle at 50% 50%, #db2777, transparent 62%); animation-delay: -19s; opacity: .34; }
@keyframes drift {
  from { transform: translate3d(0,0,0) scale(1); }
  to   { transform: translate3d(4vw, -3vh, 0) scale(1.14); }
}
.mesh {
  position: absolute; inset: 0; opacity: .5;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 10%, transparent 78%);
}
[data-theme="light"] .mesh { background-image:
    linear-gradient(rgba(40,50,80,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(40,50,80,.06) 1px, transparent 1px); }
.grain {
  position: absolute; inset: -50%; opacity: .16; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 7s steps(6) infinite;
}
@keyframes grain {
  0%,100%{transform:translate(0,0)} 20%{transform:translate(-3%,2%)}
  40%{transform:translate(2%,-3%)} 60%{transform:translate(-2%,-2%)} 80%{transform:translate(3%,3%)}
}
/* 关闭背景动效（省电 / 弱动效偏好） */
[data-motion="off"] .blob,
[data-motion="off"] .grain { animation: none; }

/* ---------- 玻璃 ---------- */
.glass {
  background: linear-gradient(158deg,
    rgba(255,255,255, calc(var(--ga1) * var(--glass-alpha))),
    rgba(255,255,255, calc(var(--ga2) * var(--glass-alpha))) 55%,
    rgba(255,255,255, calc(var(--ga3) * var(--glass-alpha))));
  backdrop-filter: blur(var(--blur)) saturate(165%);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(165%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow), inset 0 1px 0 var(--glass-hi);
}
/* 顶栏单独一层透明度 */
.topbar.glass {
  background: linear-gradient(158deg,
    rgba(255,255,255, calc(var(--ga1) * var(--bar-alpha))),
    rgba(255,255,255, calc(var(--ga2) * var(--bar-alpha))) 55%,
    rgba(255,255,255, calc(var(--ga3) * var(--bar-alpha))));
}
.liquid { position: relative; }
.liquid::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background:
    radial-gradient(120% 60% at 12% -10%, rgba(255,255,255,.28), transparent 45%),
    radial-gradient(90% 50% at 88% 110%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 55%);
  mix-blend-mode: screen; opacity: .8;
}

/* ---------- 进度条 ---------- */
.progress { position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 60; background: transparent; }
.progress i {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), #f472b6);
  box-shadow: 0 0 14px color-mix(in srgb, var(--accent) 70%, transparent);
  transition: width .12s linear;
}

/* ---------- 顶栏 ---------- */
.topbar {
  position: sticky; top: 10px; z-index: 50;
  margin: 10px 14px 0; padding: 10px 16px;
  border-radius: 999px;
  display: flex; align-items: center; gap: 14px;
  animation: dropIn .7s var(--ease) both;
}
@keyframes dropIn { from { opacity: 0; transform: translateY(-24px); } }

.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; flex-shrink: 0; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 900; font-size: 19px; color: #04121a;
  background: linear-gradient(135deg, var(--accent), var(--accent-2) 60%, var(--accent));
  box-shadow: 0 6px 18px -6px color-mix(in srgb, var(--accent) 80%, transparent);
}
.brand-text { font-weight: 700; letter-spacing: .02em; font-size: 15px; white-space: nowrap; }
.brand-text em { font-family: var(--font-display); font-style: italic; color: var(--accent); margin: 0 2px; }

.src-chip {
  font-size: 10.5px; font-weight: 700; letter-spacing: .08em;
  padding: 4px 10px; border-radius: 999px; white-space: nowrap;
  border: 1px solid var(--line); background: var(--ink-soft); color: var(--faint);
  flex: none;
}
.src-chip.live {
  color: #4ade80; border-color: color-mix(in srgb, #4ade80 45%, transparent);
  background: color-mix(in srgb, #4ade80 14%, transparent);
}
.src-chip.offline {
  color: var(--accent-2); border-color: color-mix(in srgb, var(--accent-2) 45%, transparent);
  background: color-mix(in srgb, var(--accent-2) 14%, transparent);
}

/* 连接电脑服务的提示条 */
.toast {
  position: fixed; left: 50%; bottom: 26px; z-index: 200;
  transform: translate(-50%, 16px); opacity: 0; pointer-events: none;
  padding: 10px 18px; border-radius: 999px;
  font-size: 13px; line-height: 1.45; text-align: center; white-space: nowrap;
  color: #e8ecf7;
  background: rgba(8, 12, 24, .93);
  border: 1px solid color-mix(in srgb, var(--accent) 32%, transparent);
  box-shadow: 0 22px 48px -20px rgba(0, 0, 0, .85);
  max-width: min(92vw, 560px); overflow: hidden; text-overflow: ellipsis;
  transition: opacity .25s var(--ease), transform .25s var(--ease);
}
.toast.on { opacity: 1; transform: translate(-50%, 0); }
[data-theme="light"] .toast { background: rgba(255, 255, 252, .96); color: var(--txt); }

.search-wrap { position: relative; flex: 1; max-width: 520px; }
.search-wrap input {
  width: 100%; padding: 10px 74px 10px 16px;
  border-radius: 999px; border: 1px solid var(--line);
  background: var(--ink-soft); color: var(--txt);
  font: inherit; font-size: 14px; outline: none;
  transition: border-color .25s, box-shadow .25s, background .25s;
}
.search-wrap input::placeholder { color: var(--faint); }
.search-wrap input:focus { border-color: color-mix(in srgb, var(--accent) 60%, transparent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 14%, transparent); }
.search-wrap kbd {
  position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  font-family: var(--font-mono); font-size: 10.5px; color: var(--faint);
  border: 1px solid var(--line); border-radius: 6px; padding: 3px 7px;
  background: var(--ink-soft); pointer-events: none;
}
.top-actions { display: flex; gap: 8px; margin-left: auto; align-items: center; }

.icon-btn {
  width: 40px; height: 40px; border-radius: 12px; cursor: pointer;
  border: 1px solid var(--line); background: var(--ink-soft); color: var(--txt);
  font-size: 15px; transition: transform .2s var(--ease), background .2s;
}
.icon-btn:hover { transform: translateY(-2px) rotate(-4deg); background: var(--glass-hi); }
.icon-btn.sm { width: 32px; height: 32px; font-size: 13px; border-radius: 10px; }
.icon-btn[aria-expanded="true"] {
  background: color-mix(in srgb, var(--accent) 20%, transparent);
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
}
.pill {
  cursor: pointer; padding: 9px 16px; border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 18%, transparent), color-mix(in srgb, var(--accent-2) 12%, transparent));
  color: var(--txt); font: inherit; font-size: 13.5px; font-weight: 600;
  transition: transform .2s var(--ease), box-shadow .2s;
}
.pill:hover { transform: translateY(-2px); box-shadow: 0 10px 24px -12px color-mix(in srgb, var(--accent) 90%, transparent); }
#menuBtn { display: none; }

/* ---------- 布局 ---------- */
.layout {
  display: grid; grid-template-columns: 296px minmax(0, 1fr);
  gap: 20px; padding: 20px 14px 60px;
  max-width: 1560px; margin: 0 auto; align-items: start;
}

/* ---------- 侧栏 ---------- */
.sidebar {
  position: sticky; top: 84px;
  border-radius: 22px; padding: 16px 12px 12px;
  max-height: calc(100vh - 104px);
  display: flex; flex-direction: column;
  animation: fadeUp .7s .08s var(--ease) both;
}
.nav { overflow-y: auto; padding: 2px 4px 8px; scrollbar-width: thin; }
.nav::-webkit-scrollbar { width: 6px; }
.nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,.16); border-radius: 8px; }

.nav-home {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 10px 12px; border-radius: 12px; text-decoration: none;
  font-weight: 700; font-size: 14.5px; color: var(--txt);
  border: 1px solid transparent; transition: background .2s;
}
.nav-home:hover { background: var(--ink-soft); }
.nav-home.active { background: color-mix(in srgb, var(--accent) 14%, transparent); border-color: color-mix(in srgb, var(--accent) 35%, transparent); }
.nav-badge {
  margin-left: auto; font-family: var(--font-mono); font-size: 11px; color: var(--accent);
  padding: 1px 7px; border-radius: 999px; background: color-mix(in srgb, var(--accent) 14%, transparent);
}
.nav-badge:empty { display: none; }

.nav-cat { margin-top: 14px; }
.nav-cat-head {
  display: flex; align-items: center; gap: 8px; width: 100%;
  background: none; border: 0; color: var(--muted); cursor: pointer;
  font: inherit; font-size: 12px; font-weight: 700; letter-spacing: .1em;
  padding: 6px 10px; border-radius: 10px; text-transform: uppercase;
}
.nav-cat-head:hover { background: var(--ink-soft); color: var(--txt); }
.nav-cat-head .swatch { width: 9px; height: 9px; border-radius: 3px; box-shadow: 0 0 10px currentColor; }
.nav-cat-head .count { margin-left: auto; font-size: 11px; color: var(--faint); font-weight: 500; }
.nav-cat-head .chev { font-size: 9px; transition: transform .25s; }
.nav-cat.collapsed .chev { transform: rotate(-90deg); }
.nav-cat.collapsed .nav-items { display: none; }

.nav-item {
  display: flex; align-items: baseline; gap: 8px;
  padding: 7px 10px 7px 14px; margin: 2px 0;
  border-radius: 10px; text-decoration: none;
  font-size: calc(13.5px * var(--fs)); color: var(--muted); line-height: 1.45;
  border-left: 2px solid transparent;
  transition: color .18s, background .18s, transform .18s var(--ease);
}
.nav-item:hover { color: var(--txt); background: var(--ink-soft); transform: translateX(3px); }
.nav-item.active {
  color: var(--txt); background: var(--ink-soft);
  border-left-color: var(--item-color, var(--accent));
  font-weight: 600;
}
.nav-item .pri { font-size: 10px; }
.nav-item .lbl { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.sidebar-foot {
  border-top: 1px solid var(--line); margin-top: 6px; padding: 10px 10px 2px;
  font-size: 11px; color: var(--faint); display: flex; gap: 6px; flex-wrap: wrap;
}

.scrim { display: none; }

/* ---------- 主区 ---------- */
.view { min-width: 0; animation: fadeUp .7s .16s var(--ease) both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(22px); } }

/* ---------- 首页 ---------- */
.hero {
  position: relative; overflow: hidden;
  border-radius: 26px; padding: clamp(28px, 5vw, 56px);
  animation: fadeUp .7s .1s var(--ease) both;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(70% 120% at 100% 0%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 60%),
    radial-gradient(60% 100% at 0% 100%, rgba(251,191,36,.14), transparent 60%),
    radial-gradient(50% 80% at 80% 110%, rgba(167,139,250,.16), transparent 65%);
  pointer-events: none;
}
.hero > * { position: relative; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .28em;
  text-transform: uppercase; color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent); border-radius: 999px;
  padding: 6px 14px; background: color-mix(in srgb, var(--accent) 8%, transparent);
}
.hero h1 {
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(34px, 5.4vw, 62px); line-height: 1.1;
  margin: 22px 0 14px; letter-spacing: -.01em;
}
.hero h1 .zh { font-family: var(--font-display); }
.hero h1 em {
  font-style: italic; color: transparent;
  background: linear-gradient(100deg, var(--accent), var(--accent-2) 55%, var(--accent));
  -webkit-background-clip: text; background-clip: text;
}
.hero p.lead { color: var(--muted); font-size: clamp(14.5px, 1.6vw, 17px); line-height: 1.85; max-width: 66ch; margin: 0 6px; }

.stats { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0 6px; }
.stat {
  padding: 14px 20px; border-radius: 16px; min-width: 128px;
  background: var(--ink-soft); border: 1px solid var(--line);
}
.stat b { display: block; font-family: var(--font-display); font-size: 30px; font-weight: 900; line-height: 1; }
.stat b i { font-style: normal; font-size: 14px; color: var(--muted); margin-left: 3px; }
.stat span { font-size: 12px; color: var(--faint); letter-spacing: .06em; }

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 24px; border-radius: 999px; text-decoration: none;
  font-weight: 700; font-size: 14.5px; cursor: pointer; border: 1px solid var(--line);
  background: var(--ink-soft); color: var(--txt);
  transition: transform .22s var(--ease), box-shadow .22s, background .22s;
}
.btn:hover { transform: translateY(-3px); }
.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #04141a; border-color: transparent;
  box-shadow: 0 16px 34px -16px color-mix(in srgb, var(--accent) 95%, transparent);
}
.btn.amber { background: linear-gradient(135deg, var(--accent-2), #f59e0b); color: #1a1204; border-color: transparent; }

.notice {
  margin-top: 22px; padding: 16px 20px; border-radius: 16px;
  border: 1px solid rgba(248,113,113,.35);
  background: linear-gradient(120deg, rgba(248,113,113,.14), rgba(251,191,36,.08));
  font-size: 13.5px; line-height: 1.9; color: var(--txt);
}
.notice b { color: #fca5a5; }

.section-title {
  display: flex; align-items: baseline; gap: 14px;
  margin: 46px 4px 18px;
}
.section-title h2 {
  font-family: var(--font-display); font-size: 24px; margin: 0; font-weight: 900;
}
.section-title .rule { flex: 1; height: 1px; background: linear-gradient(90deg, var(--line), transparent); }
.section-title .aside { font-size: 12.5px; color: var(--faint); font-family: var(--font-mono); }

.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(252px, 1fr)); gap: 16px; }
.cat-card {
  position: relative; overflow: hidden; border-radius: 20px;
  padding: 22px 20px 18px; text-decoration: none; color: var(--txt);
  transition: transform .3s var(--ease), box-shadow .3s;
  animation: fadeUp .6s calc(var(--d, 0) * 60ms) var(--ease) both;
}
.cat-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--c); box-shadow: 0 0 18px var(--c);
}
.cat-card::after {
  content: ""; position: absolute; right: -40px; top: -40px; width: 130px; height: 130px;
  border-radius: 50%; background: var(--c); opacity: .13; filter: blur(6px);
  transition: transform .35s var(--ease);
}
.cat-card:hover { transform: translateY(-6px); box-shadow: 0 30px 60px -28px rgba(0,0,0,.9); }
.cat-card:hover::after { transform: scale(1.5); }
.cat-card .ic { font-size: 24px; }
.cat-card h3 { font-size: calc(17px * var(--fs)); margin: 12px 0 6px; font-weight: 700; }
.cat-card .n { font-family: var(--font-display); font-size: 12.5px; color: var(--c); letter-spacing: .1em; }
.cat-card p { font-size: calc(12.5px * var(--fs)); color: var(--muted); margin: 10px 0 0; line-height: 1.7;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

.mini-list { display: grid; gap: 10px; }
.mini {
  display: flex; align-items: center; gap: 12px; text-decoration: none;
  padding: 13px 18px; border-radius: 14px; color: var(--txt);
  font-size: calc(14px * var(--fs)); transition: transform .22s var(--ease), background .22s;
}
.mini:hover { transform: translateX(6px); background: var(--ink-soft); }
.mini .bar { width: 3px; height: 26px; border-radius: 3px; background: var(--c, var(--accent)); box-shadow: 0 0 10px var(--c, var(--accent)); }
.mini .t { font-weight: 600; }
.mini .s { color: var(--faint); font-size: 12px; margin-left: auto; white-space: nowrap; }

/* ---------- 分类页 ---------- */
.cat-hero { border-radius: 24px; padding: clamp(24px, 4vw, 44px); position: relative; overflow: hidden; }
.cat-hero h1 { font-family: var(--font-display); font-size: clamp(28px, 4vw, 44px); margin: 14px 0 8px; }
.cat-hero .chips { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 18px; }
.chip {
  font-size: 12px; padding: 6px 13px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--ink-soft); color: var(--muted);
}
.note-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(292px, 1fr)); gap: 16px; margin-top: 20px; }
.note-card {
  position: relative; border-radius: 18px; padding: 20px; text-decoration: none; color: var(--txt);
  display: flex; flex-direction: column; gap: 10px; overflow: hidden;
  transition: transform .28s var(--ease), box-shadow .28s;
  animation: fadeUp .55s calc(var(--d, 0) * 55ms) var(--ease) both;
}
.note-card:hover { transform: translateY(-5px); box-shadow: 0 26px 50px -26px rgba(0,0,0,.9); }
.note-card .h { display: flex; align-items: center; gap: 8px; }
.note-card h3 { font-size: calc(16.5px * var(--fs)); margin: 0; line-height: 1.5; font-weight: 700; }
.note-card p { margin: 0; font-size: calc(12.8px * var(--fs)); color: var(--muted); line-height: 1.75;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.note-card .meta { display: flex; gap: 10px; font-size: 11.5px; color: var(--faint); margin-top: auto;
  font-family: var(--font-mono); }
.tag {
  font-size: 10.5px; padding: 3px 9px; border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
}

/* ---------- 文章页 ---------- */
.article-wrap { display: grid; grid-template-columns: minmax(0,1fr) 236px; gap: 20px; align-items: start; }
.article {
  border-radius: 24px; padding: clamp(22px, 3.6vw, 52px);
  overflow: hidden; min-width: 0;
}
.art-head { border-bottom: 1px solid var(--line); padding-bottom: 22px; margin-bottom: 30px; }
.crumbs { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--faint); flex-wrap: wrap; }
.crumbs a { text-decoration: none; color: var(--muted); }
.crumbs a:hover { color: var(--accent); }
.crumbs .sep { opacity: .5; }
.art-head h1 {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.6vw, 40px); line-height: 1.3; margin: 16px 0 14px; font-weight: 900;
}
.badges { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.badge {
  font-size: 11.5px; padding: 5px 12px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--ink-soft); color: var(--muted);
  font-family: var(--font-mono);
}
.badge.pri { border-color: rgba(248,113,113,.4); background: rgba(248,113,113,.12); color: #fca5a5; }

.toc {
  position: sticky; top: 88px; border-radius: 18px; padding: 18px 16px;
  max-height: calc(100vh - 120px); overflow-y: auto;
  font-size: calc(12.6px * var(--fs));
}
.toc h4 { margin: 0 0 12px; font-size: 11px; letter-spacing: .18em; color: var(--faint); text-transform: uppercase; }
.toc a {
  display: block; text-decoration: none; color: var(--muted);
  padding: 5px 10px; border-left: 2px solid var(--line); margin: 2px 0;
  transition: color .18s, border-color .18s, transform .18s;
  line-height: 1.55;
}
.toc a.lvl1 { font-weight: 700; color: var(--txt); }
.toc a.lvl3 { padding-left: 22px; font-size: calc(12px * var(--fs)); }
.toc a:hover, .toc a.on { color: var(--accent); border-left-color: var(--accent); transform: translateX(3px); }

.art-nav { display: flex; gap: 12px; margin-top: 26px; flex-wrap: wrap; }
.art-nav a {
  flex: 1; min-width: 200px; text-decoration: none; padding: 15px 18px;
  border-radius: 16px; color: var(--txt); border: 1px solid var(--line);
  background: var(--ink-soft); transition: transform .22s var(--ease);
}
.art-nav a:hover { transform: translateY(-3px); }
.art-nav a span { display: block; font-size: 11px; color: var(--faint); margin-bottom: 5px; letter-spacing: .1em; }
.art-nav a.next { text-align: right; }

/* ---------- 正文排版 ---------- */
.md { line-height: 1.95; font-size: calc(15.4px * var(--fs)); word-break: break-word; }
.md > :first-child { margin-top: 0; }
.md h1 { display: none; } /* 标题已在 art-head 展示 */
.md h2 {
  font-family: var(--font-display); font-size: calc(25px * var(--fs)); font-weight: 900;
  margin: 46px 0 16px; padding: 10px 0 10px 16px; line-height: 1.45;
  border-left: 4px solid var(--accent);
  background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 10%, transparent), transparent 70%);
  border-radius: 0 10px 10px 0;
}
.md h3 { font-size: calc(19.5px * var(--fs)); margin: 34px 0 12px; font-weight: 700; color: var(--accent); }
.md h4, .md h5, .md h6 { font-size: calc(16.5px * var(--fs)); margin: 26px 0 10px; color: var(--muted); }
.md p { margin: 14px 0; }
.md strong { color: #fff; font-weight: 700; }
[data-theme="light"] .md strong { color: #10152a; }
.md em { color: var(--muted); }
.md mark {
  background: var(--mark-bg); color: inherit; padding: 1px 5px; border-radius: 5px;
  box-shadow: inset 0 -2px 0 rgba(251,191,36,.6);
}
.md code {
  font-family: var(--font-mono); font-size: .88em;
  background: var(--code-bg); border: 1px solid var(--line);
  padding: 2px 7px; border-radius: 7px; color: var(--accent);
}
.md pre.code {
  background: var(--code-bg); border: 1px solid var(--line); border-radius: 14px;
  padding: 16px 18px; overflow-x: auto; position: relative;
}
.md pre.code code { background: none; border: 0; padding: 0; color: var(--txt); font-size: calc(13.4px * var(--fs)); line-height: 1.75; }
.md pre.code::before {
  content: attr(data-lang); position: absolute; top: 8px; right: 14px;
  font-size: 10px; color: var(--faint); letter-spacing: .12em; text-transform: uppercase;
}
.md ul, .md ol { padding-left: 24px; margin: 14px 0; }
.md li { margin: 7px 0; }
.md li::marker { color: var(--accent); font-weight: 700; }
.md li > ul, .md li > ol { margin: 6px 0; }
.md .list-cont { margin: 6px 0; }
.md a:not(.wikilink) { color: var(--accent); text-underline-offset: 3px; }
.md .wikilink {
  color: var(--accent); text-decoration: none;
  border-bottom: 1px dashed color-mix(in srgb, var(--accent) 55%, transparent);
  padding-bottom: 1px; transition: background .18s, color .18s;
}
.md .wikilink:hover { background: color-mix(in srgb, var(--accent) 16%, transparent); border-bottom-style: solid; }
.md .wikilink.broken { color: var(--faint); border-bottom-color: var(--faint); cursor: help; }
.md hr { border: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--line) 20%, var(--line) 80%, transparent); margin: 38px 0; }
.md img { max-width: 100%; border-radius: 12px; }

.table-wrap { overflow-x: auto; margin: 20px 0; border-radius: 14px; border: 1px solid var(--line); }
.md table { border-collapse: collapse; width: 100%; font-size: calc(13.8px * var(--fs)); min-width: 420px; }
.md th {
  text-align: left; padding: 12px 15px; font-weight: 700; font-size: calc(12.6px * var(--fs));
  letter-spacing: .05em; color: #04141a;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  position: sticky; top: 0;
}
.md td { padding: 11px 15px; border-top: 1px solid var(--line); vertical-align: top; line-height: 1.8; }
.md tbody tr:nth-child(even) { background: var(--ink-soft); }
.md tbody tr:hover { background: color-mix(in srgb, var(--accent) 7%, transparent); }

.md blockquote {
  margin: 20px 0; padding: 16px 20px; border-radius: 4px 14px 14px 4px;
  border-left: 3px solid var(--accent);
  background: linear-gradient(120deg, color-mix(in srgb, var(--accent) 9%, transparent), transparent 75%);
  color: var(--muted);
}
.md blockquote.callout { border-radius: 14px; border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); border-left-width: 3px; }
.callout-title { font-weight: 700; color: var(--accent); margin-bottom: 6px; font-size: 13.5px; letter-spacing: .04em; }
.callout-warning, .callout-⚠️ { border-color: rgba(251,191,36,.45); background: linear-gradient(120deg, rgba(251,191,36,.12), transparent 75%); }
.callout-warning .callout-title { color: var(--accent-2); }
.callout-error, .callout-x { border-color: rgba(248,113,113,.45); background: linear-gradient(120deg, rgba(248,113,113,.12), transparent 75%); }

/* ---------- 搜索结果 ---------- */
.results {
  position: absolute; top: calc(100% + 12px); left: 0; right: 0;
  border-radius: 18px; padding: 8px; max-height: 66vh; overflow-y: auto; z-index: 80;
  animation: fadeUp .22s var(--ease) both;

  /* 搜索下拉自成一体：近实底 + 独立模糊，不随全局玻璃透明度变糊 */
  background: var(--search-bg);
  backdrop-filter: blur(var(--search-blur)) saturate(150%);
  -webkit-backdrop-filter: blur(var(--search-blur)) saturate(150%);
  border: 1px solid color-mix(in srgb, var(--accent) 26%, var(--glass-border));
  box-shadow: 0 34px 70px -26px rgba(0,0,0,.85), 0 0 0 1px rgba(255,255,255,.05),
              inset 0 1px 0 var(--glass-hi);
}
.results.hidden { display: none; }
.res-group { font-size: 10.5px; letter-spacing: .16em; color: var(--faint); padding: 10px 12px 6px; text-transform: uppercase; }
.res {
  display: block; padding: 11px 14px; border-radius: 12px; text-decoration: none;
  color: var(--txt); border-left: 3px solid transparent;
}
.res:hover, .res.sel { background: var(--ink-soft); border-left-color: var(--accent); }
.res .rt { font-size: 14px; font-weight: 600; display: flex; gap: 8px; align-items: center; }
.res .rs { font-size: 12.2px; color: var(--muted); margin-top: 4px; line-height: 1.7;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.res .rs mark { background: color-mix(in srgb, var(--accent) 38%, transparent); color: var(--txt); border-radius: 3px; padding: 0 2px; }
.res .rt mark { background: color-mix(in srgb, var(--accent) 34%, transparent); color: inherit; border-radius: 3px; }
.res-empty { padding: 22px; text-align: center; color: var(--muted); font-size: 13px; }

/* ---------- 外观设置面板 ---------- */
.settings {
  position: fixed; top: 78px; right: 16px; width: 330px; z-index: 90;
  border-radius: 22px; padding: 14px 16px 16px;
  animation: fadeUp .26s var(--ease) both;
}
.settings[hidden] { display: none; }
.set-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.set-head b { font-size: 14px; letter-spacing: .04em; }
.set-body { display: flex; flex-direction: column; gap: 13px; max-height: min(68vh, 560px); overflow-y: auto; padding-right: 4px; }
.set-group { display: flex; flex-direction: column; gap: 8px; border-top: 1px solid var(--line); padding-top: 12px; }
.set-group:first-child { border-top: 0; padding-top: 0; }
.set-label { font-size: 10.5px; letter-spacing: .18em; color: var(--faint); text-transform: uppercase; }
.set-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; font-size: 13px; color: var(--muted); min-height: 34px; }
.set-row b { font-family: var(--font-mono); font-size: 12px; font-weight: 500; color: var(--accent); }

input[type="range"] {
  -webkit-appearance: none; appearance: none; width: 100%; height: 24px;
  background: transparent; cursor: pointer; margin: 0;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 6px; border-radius: 999px; border: 1px solid var(--line);
  background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 65%, transparent), color-mix(in srgb, var(--accent) 12%, transparent));
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 17px; height: 17px; margin-top: -6.5px;
  border-radius: 50%; background: var(--accent); border: 2px solid rgba(255,255,255,.9);
  box-shadow: 0 3px 12px -2px color-mix(in srgb, var(--accent) 85%, transparent);
  transition: transform .18s var(--ease);
}
input[type="range"]:hover::-webkit-slider-thumb { transform: scale(1.12); }
input[type="range"]::-moz-range-track { height: 6px; border-radius: 999px; background: var(--ink-soft); }
input[type="range"]::-moz-range-thumb { width: 15px; height: 15px; border-radius: 50%; background: var(--accent); border: 2px solid #fff; }

.seg { display: flex; gap: 6px; background: var(--ink-soft); border: 1px solid var(--line); border-radius: 13px; padding: 4px; }
.seg-btn {
  flex: 1; min-height: 36px; padding: 8px 10px; border-radius: 10px; border: 0;
  background: transparent; color: var(--muted); font: inherit; font-size: 13px; cursor: pointer;
  transition: background .2s, color .2s;
}
.seg-btn[aria-pressed="true"] {
  background: color-mix(in srgb, var(--accent) 18%, transparent); color: var(--txt);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 38%, transparent);
}

.swatches { display: flex; flex-wrap: wrap; gap: 9px; }
.swatches .swatch {
  width: 30px; height: 30px; border-radius: 50%; cursor: pointer; padding: 0;
  border: 2px solid transparent; background: var(--c);
  box-shadow: 0 0 0 1px var(--line), 0 5px 14px -5px var(--c);
  transition: transform .2s var(--ease);
}
.swatches .swatch:hover { transform: scale(1.12); }
.swatches .swatch[aria-pressed="true"] { border-color: var(--txt); transform: scale(1.08); }

.switch {
  width: 46px; height: 26px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--ink-soft); cursor: pointer; padding: 0; position: relative;
  transition: background .25s, border-color .25s; flex: none;
}
.switch i {
  position: absolute; top: 2px; left: 2px; width: 20px; height: 20px; border-radius: 50%;
  background: var(--muted); transition: transform .25s var(--ease), background .25s;
}
.switch[aria-checked="true"] { background: color-mix(in srgb, var(--accent) 35%, transparent); border-color: color-mix(in srgb, var(--accent) 50%, transparent); }
.switch[aria-checked="true"] i { transform: translateX(20px); background: var(--accent); }

.set-reset { width: 100%; justify-content: center; font-size: 13px; min-height: 44px; margin-top: 4px; }
.set-about { margin-top: 12px; text-align: center; font-size: 11px; color: var(--muted); opacity: .85; line-height: 1.7; }

/* ---------- 生词本 ---------- */
#vocabBtn { display: inline-flex; align-items: center; gap: 7px; }
#vocabBtn b {
  min-width: 20px; height: 20px; padding: 0 6px; border-radius: 999px;
  display: none; place-items: center; font-family: var(--font-mono); font-size: 11px;
  background: var(--accent); color: #04141a;
}
#vocabBtn b.has { display: grid; }

.vocab-hit {
  border-bottom: 1.5px dotted var(--accent-2);
  cursor: pointer; padding-bottom: 1px; border-radius: 3px;
  background: color-mix(in srgb, var(--accent-2) 12%, transparent);
}
.vocab-hit:hover { background: color-mix(in srgb, var(--accent-2) 26%, transparent); }

.vocab-pop {
  position: fixed; z-index: 95; width: min(360px, calc(100vw - 24px));
  border-radius: 18px; padding: 14px 16px 16px;
  animation: fadeUp .18s var(--ease) both;
}
.vocab-pop[hidden] { display: none; }
.vp-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.vp-badge {
  font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--accent-2); border: 1px solid color-mix(in srgb, var(--accent-2) 40%, transparent);
  border-radius: 999px; padding: 3px 10px;
}
.vp-x {
  width: 26px; height: 26px; border-radius: 8px; cursor: pointer; font-size: 12px;
  border: 1px solid var(--line); background: var(--ink-soft); color: var(--muted);
}
.vp-term {
  font-family: var(--font-display); font-weight: 900; color: var(--txt);
  font-size: calc(22px * var(--fs)); line-height: 1.35; margin: 2px 0 10px; word-break: break-word;
}
.vp-label { font-size: 10.5px; letter-spacing: .14em; color: var(--faint); text-transform: uppercase; margin-top: 10px; }
.vp-meaning, .vp-term-input {
  width: 100%; margin-top: 5px; padding: 9px 12px; border-radius: 11px;
  border: 1px solid var(--line); background: var(--ink-soft); color: var(--txt);
  font: inherit; font-size: 13.5px; outline: none;
}
.vp-term-input { margin: 2px 0 4px; font-family: var(--font-display); font-size: 18px; font-weight: 700; }
.vp-meaning:focus, .vp-term-input:focus { border-color: color-mix(in srgb, var(--accent) 60%, transparent); }
.vp-sentence {
  margin-top: 5px; font-size: 13px; line-height: 1.75; color: var(--muted);
  padding: 9px 12px; border-radius: 11px; background: var(--ink-soft);
  border-left: 3px solid color-mix(in srgb, var(--accent-2) 55%, transparent);
}
.vp-src { margin-top: 8px; font-size: 12px; color: var(--faint); }
.vp-actions { display: flex; gap: 8px; margin-top: 14px; }
.vp-actions .btn { flex: 1; justify-content: center; padding: 10px 14px; font-size: 13.5px; }

.vocab-toast {
  position: fixed; left: 50%; bottom: 26px; transform: translate(-50%, 20px);
  z-index: 99; padding: 11px 20px; border-radius: 999px;
  font-size: 13.5px; opacity: 0; pointer-events: none;
  transition: opacity .25s, transform .25s var(--ease);
}
.vocab-toast.show { opacity: 1; transform: translate(-50%, 0); }

.vocab-hero .cta-row .btn { padding: 11px 18px; font-size: 13.5px; }
.vocab-toolbar {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  margin: 18px 0; padding: 12px 14px; border-radius: 18px;
}
.vocab-seg { flex: 0 0 auto; }
.vocab-search {
  flex: 1; min-width: 180px; padding: 9px 14px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--ink-soft); color: var(--txt);
  font: inherit; font-size: 13.5px; outline: none;
}
.vocab-search:focus { border-color: color-mix(in srgb, var(--accent) 60%, transparent); }
.vocab-count { font-family: var(--font-mono); font-size: 12px; color: var(--faint); }

.vocab-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 14px; }
.vocab-card { border-radius: 18px; padding: 18px 18px 14px; }
.vc-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.vc-head h3 {
  font-family: var(--font-display); margin: 0; color: var(--txt);
  font-size: calc(20px * var(--fs)); font-weight: 900;
}
.vc-due {
  margin-left: auto; font-family: var(--font-mono); font-size: 11px;
  padding: 3px 9px; border-radius: 999px; border: 1px solid var(--line); color: var(--faint);
}
.vc-due.now { color: #04141a; background: var(--accent); border-color: transparent; font-weight: 700; }
.vc-stage { font-size: 11px; padding: 3px 9px; border-radius: 999px; background: var(--ink-soft); color: var(--muted); }
.vc-meaning { margin-top: 10px; font-size: 13.5px; line-height: 1.7; color: var(--txt); }
.vc-muted { color: var(--faint); font-size: 12.5px; }
.vc-sentence {
  margin-top: 10px; font-size: 12.8px; line-height: 1.75; color: var(--muted);
  padding: 8px 12px; border-radius: 10px; background: var(--ink-soft);
  border-left: 3px solid color-mix(in srgb, var(--accent-2) 50%, transparent);
}
.vc-meta { display: flex; flex-wrap: wrap; gap: 8px 14px; margin-top: 12px; align-items: baseline; }
.vc-src { font-size: 12px; color: var(--accent); text-decoration: none; }
.vc-src:hover { text-decoration: underline; }
.vc-nums { font-size: 11.5px; color: var(--faint); font-family: var(--font-mono); }
.vc-actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.btn.sm { padding: 8px 13px; font-size: 12.5px; border-radius: 12px; }
.btn.danger { border-color: color-mix(in srgb, #f87171 45%, transparent); color: #fca5a5; }
.btn.danger:hover { background: color-mix(in srgb, #f87171 14%, transparent); }

/* 复习卡片 */
.review-wrap { max-width: 780px; margin: 0 auto; display: grid; gap: 14px; }
.review-bar { display: flex; align-items: center; gap: 14px; padding: 11px 18px; border-radius: 999px; font-size: 13px; }
.review-back { color: var(--muted); text-decoration: none; white-space: nowrap; }
.review-back:hover { color: var(--accent); }
.review-progress { flex: 1; height: 6px; border-radius: 999px; background: var(--ink-soft); overflow: hidden; }
.review-progress i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width .3s var(--ease); }
.review-count { font-family: var(--font-mono); font-size: 12px; color: var(--faint); white-space: nowrap; }

.review-card { border-radius: 24px; padding: clamp(24px, 4vw, 44px); text-align: center; }
.rc-term {
  font-family: var(--font-display); font-weight: 900; line-height: 1.25;
  font-size: clamp(30px, 5vw, 52px); letter-spacing: -.01em;
}
.review-card.revealed .rc-term { font-size: clamp(24px, 3.4vw, 36px); color: var(--accent); }
.rc-sentence {
  margin: 18px auto 0; max-width: 62ch; text-align: left;
  font-size: 15px; line-height: 1.9; color: var(--muted);
  padding: 12px 18px; border-radius: 14px; background: var(--ink-soft);
  border-left: 3px solid color-mix(in srgb, var(--accent-2) 55%, transparent);
}
.rc-src { margin-top: 12px; font-size: 12.5px; color: var(--faint); }
.rc-answer { margin-top: 22px; text-align: left; }
.rc-label { font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--faint); margin: 16px 0 6px; }
.rc-meaning { font-size: 15.5px; line-height: 1.8; }
.rc-full { font-size: 14px; line-height: 1.9; color: var(--muted); }
.rc-full mark { background: color-mix(in srgb, var(--accent-2) 32%, transparent); color: var(--txt); border-radius: 4px; padding: 0 3px; }
.rc-nums { margin-top: 14px; font-family: var(--font-mono); font-size: 11.5px; color: var(--faint); }
.rc-actions { margin-top: 24px; }
.rc-actions .btn { padding: 13px 30px; font-size: 15px; }
.rate-row { display: flex; gap: 10px; margin-top: 24px; flex-wrap: wrap; justify-content: center; }
.rate-btn {
  flex: 1; min-width: 108px; cursor: pointer; padding: 12px 10px; border-radius: 14px;
  border: 1px solid var(--line); background: var(--ink-soft); color: var(--txt);
  font: inherit; display: grid; gap: 3px;
  transition: transform .18s var(--ease), border-color .18s;
}
.rate-btn b { font-size: 14.5px; }
.rate-btn span { font-family: var(--font-mono); font-size: 11px; color: var(--faint); }
.rate-btn:hover { transform: translateY(-3px); }
.rate-btn.again { border-color: color-mix(in srgb, #f87171 50%, transparent); }
.rate-btn.again b { color: #fca5a5; }
.rate-btn.hard { border-color: color-mix(in srgb, #fbbf24 50%, transparent); }
.rate-btn.hard b { color: #fcd34d; }
.rate-btn.good { border-color: color-mix(in srgb, var(--accent) 55%, transparent); }
.rate-btn.good b { color: var(--accent); }
.rate-btn.easy { border-color: color-mix(in srgb, #60a5fa 50%, transparent); }
.rate-btn.easy b { color: #93c5fd; }
.rc-hint { margin-top: 14px; font-size: 11.5px; color: var(--faint); font-family: var(--font-mono); }
.review-card.done .rate-row { margin-top: 26px; }

@media (max-width: 940px) {
  #vocabBtn .lbl { display: none; }
  .vocab-list { grid-template-columns: 1fr; }
  .vocab-toolbar { padding: 10px; }
}

/* ---------- 今日复习队列 ---------- */
#queueBtn { display: inline-flex; align-items: center; gap: 7px; }
#queueBtn b {
  font-family: var(--font-mono); font-size: 11.5px; padding: 2px 8px; border-radius: 999px;
  background: var(--ink-soft); border: 1px solid var(--line); color: var(--muted);
}
#queueBtn b.has { background: var(--accent); color: #04141a; border-color: transparent; font-weight: 700; }
#queueBtn.done { border-color: color-mix(in srgb, var(--accent) 45%, transparent); }

.q-date { font-family: var(--font-mono); font-size: 13px; color: var(--faint); font-weight: 400; letter-spacing: .04em; }
.q-progress { display: flex; align-items: center; gap: 14px; margin-top: 22px; flex-wrap: wrap; }
.q-progress span { font-size: 13px; color: var(--muted); font-family: var(--font-mono); }
.q-bar { flex: 1 1 260px; height: 8px; border-radius: 999px; background: var(--ink-soft); overflow: hidden; border: 1px solid var(--line); }
.q-bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width .35s var(--ease); }

.queue-list { display: grid; gap: 10px; }
.queue-row {
  display: grid; grid-template-columns: 46px minmax(0, 1fr) auto auto; gap: 14px; align-items: center;
  border-radius: 16px; padding: 14px 16px;
  transition: transform .2s var(--ease), box-shadow .2s;
}
.queue-row:hover { transform: translateX(4px); }
.queue-row.done { opacity: .62; }
.q-no { font-family: var(--font-mono); font-size: 15px; color: var(--faint); text-align: center; }
.q-main { min-width: 0; }
.q-title { display: block; font-size: 15.5px; font-weight: 700; color: var(--txt); text-decoration: none; line-height: 1.5; }
.q-title:hover { color: var(--accent); }
.q-meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 6px; }
.q-faint { font-size: 11.5px; color: var(--faint); font-family: var(--font-mono); }
.q-state { display: flex; flex-direction: column; gap: 4px; align-items: flex-end; text-align: right; }
.q-stage {
  font-size: 11.5px; padding: 3px 10px; border-radius: 999px; white-space: nowrap;
  border: 1px solid var(--line); background: var(--ink-soft); color: var(--muted);
}
.q-stage.learning { border-color: color-mix(in srgb, #f87171 45%, transparent); color: #fca5a5; }
.q-stage.fuzzy { border-color: color-mix(in srgb, #fbbf24 45%, transparent); color: #fcd34d; }
.q-stage.mastered { border-color: color-mix(in srgb, var(--accent) 45%, transparent); color: var(--accent); }
.q-stage.done { border-color: color-mix(in srgb, var(--accent) 40%, transparent); background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent); }
.q-quick { display: flex; gap: 6px; }
.q-btn {
  width: 34px; height: 34px; border-radius: 11px; cursor: pointer; font-size: 13px;
  border: 1px solid var(--line); background: var(--ink-soft);
  transition: transform .18s var(--ease), background .18s;
}
.q-btn:hover { transform: translateY(-3px); }
.q-btn.learning:hover { background: color-mix(in srgb, #f87171 22%, transparent); }
.q-btn.fuzzy:hover { background: color-mix(in srgb, #fbbf24 22%, transparent); }
.q-btn.mastered:hover { background: color-mix(in srgb, var(--accent) 22%, transparent); }

.q-points { margin: 6px 0 0; padding-left: 22px; }
.q-points li { margin: 5px 0; font-size: 14px; line-height: 1.7; color: var(--txt); }
.q-points li::marker { color: var(--accent); }

/* 首页「今日任务」区块 */
.today-task { border-radius: 24px; padding: clamp(20px, 3vw, 34px); margin-top: 20px; position: relative; overflow: hidden; }
.today-task::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(60% 100% at 100% 0%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 60%);
}
.today-task > * { position: relative; }
.tt-head { display: flex; gap: 20px; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; }
.tt-head h2 { font-family: var(--font-display); font-size: clamp(20px, 2.4vw, 27px); font-weight: 900; margin: 0; }
.tt-sub { margin: 8px 0 0; font-size: 13px; color: var(--muted); line-height: 1.7; }
.tt-right { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; }
.tt-count { font-family: var(--font-display); font-size: 26px; font-weight: 900; }
.tt-count b { color: var(--accent); }
.tt-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.tt-actions .btn { padding: 10px 18px; font-size: 13.5px; }
.tt-bar { margin: 18px 0 16px; flex: none; width: 100%; }
.task-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 8px; }
.task-item {
  display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--txt);
  padding: 10px 12px; border-radius: 12px; border: 1px solid var(--line); background: var(--ink-soft);
  font-size: 13.5px; transition: transform .18s var(--ease), background .18s;
}
.task-item:hover { transform: translateX(4px); background: color-mix(in srgb, var(--accent) 10%, transparent); }
.task-item.done { opacity: .6; }
.ti-no { font-family: var(--font-mono); font-size: 12px; color: var(--faint); }
.ti-title { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.task-item .q-stage { font-size: 10.5px; padding: 2px 8px; }

@media (max-width: 940px) {
  .queue-row { grid-template-columns: 34px minmax(0, 1fr) auto; }
  .q-state { display: none; }
  .tt-right { align-items: flex-start; }
  #randomBtn { display: none; }          /* 权重抽题在队列页里也有，移动端让位给队列徽标 */
  #randomBtn .lbl, #queueBtn .lbl { display: none; }
  .topbar .pill { padding: 8px 11px; font-size: 13px; }
  .topbar .icon-btn { width: 36px; height: 36px; border-radius: 11px; }
  .search-wrap { min-width: 0; }
}

/* ---------- 杂项 ---------- */
.empty-state { text-align: center; padding: 80px 20px; color: var(--muted); }
.empty-state .big { font-size: 54px; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(140,160,200,.28); border-radius: 8px; border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: rgba(140,160,200,.5); background-clip: content-box; }

@media (max-width: 1180px) {
  .article-wrap { grid-template-columns: minmax(0,1fr); }
  .toc { display: none; }
}
@media (max-width: 940px) {
  .layout { grid-template-columns: minmax(0,1fr); }
  #menuBtn { display: block; }
  .brand-text { display: none; }
  .sidebar {
    position: fixed; left: 12px; top: 76px; bottom: 12px; width: 300px; z-index: 70;
    max-height: none; transform: translateX(-115%); transition: transform .35s var(--ease);
  }
  .sidebar.open { transform: none; }
  .scrim { display: block; position: fixed; inset: 0; background: rgba(0,0,0,.5);
    backdrop-filter: blur(3px); opacity: 0; pointer-events: none; transition: opacity .3s; z-index: 65; }
  .scrim.show { opacity: 1; pointer-events: auto; }
  .search-wrap kbd { display: none; }
  .search-wrap input { padding-right: 16px; }
  #randomBtn { display: none; }
  .settings { left: 12px; right: 12px; width: auto; top: auto; bottom: 12px; border-radius: 20px; }
}
@media (max-width: 700px) {
  /* 单行顶栏放不下搜索框时（手机竖屏/小窗，实测会挤到几十像素宽）：
     搜索独占一整行，输入框和 .results 都是整屏宽 */
  .topbar { flex-wrap: wrap; row-gap: 8px; border-radius: 22px; }
  .search-wrap { order: 3; flex: 0 0 100%; max-width: none; }
}

@media (max-width: 560px) {
  .topbar { gap: 6px; padding: 8px 10px; }
  .brand-mark { width: 34px; height: 34px; font-size: 17px; }
  #vocabBtn { display: none; }          /* 窄屏用侧栏入口，顶栏只留今日队列 */
  .top-actions { gap: 5px; }
  .layout { padding: 14px 8px 40px; }
  .stats { gap: 8px; }
  .stat { min-width: 105px; padding: 11px 14px; }
  .results { max-height: 72vh; }        /* 整屏宽的下拉可以多露几行 */
}

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


/* ---------- 登录页 / 账号管理（服务器版） ---------- */
.auth-wrap { min-height: 70vh; display: grid; place-items: center; padding: 40px 16px; }
.auth-card { width: min(380px, 100%); padding: 38px 32px 30px; border-radius: 24px; text-align: center; }
.auth-logo { width: 62px; height: 62px; margin: 0 auto 16px; border-radius: 18px; display: grid; place-items: center;
  font-size: 30px; font-weight: 700; color: #04121a;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); box-shadow: 0 10px 26px -8px color-mix(in srgb, var(--accent) 55%, transparent); }
.auth-card h1 { font-family: var(--font-display); font-size: 21px; margin: 0 0 6px; letter-spacing: .5px; }
.auth-card h1 span { color: var(--accent); margin-left: 4px; }
.auth-sub { color: var(--muted); font-size: 13px; margin: 0 0 24px; }
.auth-card input { width: 100%; margin-bottom: 12px; padding: 12px 15px; border-radius: 13px;
  border: 1px solid var(--line); background: var(--ink-soft); color: var(--txt); font: inherit; font-size: 15px;
  transition: border-color .2s; }
.auth-card input:focus { border-color: var(--accent); outline: none; }
.auth-card .btn { width: 100%; padding: 12px; font-size: 15px; }
.auth-err { color: #f87171; font-size: 13px; margin: -4px 0 10px; }
.auth-hint { color: var(--faint); font-size: 11.5px; margin: 18px 0 0; line-height: 1.8; }

.acct { max-width: 680px; margin: 18px auto; padding: 26px; border-radius: 20px; }
.acct h2 { margin: 0 0 4px; font-size: 20px; }
.acct-sub { color: var(--muted); font-size: 13px; margin: 0 0 18px; }
.acct-table { width: 100%; border-collapse: collapse; font-size: 14px; margin-bottom: 20px; }
.acct-table th { text-align: left; color: var(--muted); font-weight: 500; font-size: 12.5px; padding: 8px 10px; border-bottom: 1px solid var(--line); }
.acct-table td { padding: 10px; border-bottom: 1px solid var(--line); }
.acct-ops { text-align: right; white-space: nowrap; }
.acct-add { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; padding: 16px; border-radius: 14px;
  background: var(--ink-soft); border: 1px dashed var(--line); }
.acct-add input[type="text"], .acct-add input:not([type]) { flex: 1 1 160px; }
.acct-add input { padding: 9px 13px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--panel); color: var(--txt); font: inherit; font-size: 13.5px; }
.acct-role { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); white-space: nowrap; }
.acct-foot { display: flex; justify-content: space-between; align-items: center; margin-top: 20px;
  padding-top: 14px; border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); }
.btn.sm { padding: 5px 12px; font-size: 12.5px; border-radius: 9px; }