/* ============================================================
   SuperX Studio · 创作工作台
   对应设计稿 docs/design/05-studio.md
   信息密度约为官网的 60%，去掉光晕与大留白
   ============================================================ */

:root {
  --ink-900: #07070A;
  --ink-850: #0A0A11;
  --ink-800: #0D0D14;
  --ink-700: #14141F;
  --ink-600: #1B1B27;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text-1: #F5F6FA;
  --text-2: #A6A8B8;
  --text-3: #6B6D80;

  --violet: #0B62CE;
  --cyan: #12B5C0;
  --grad: linear-gradient(100deg, #0B62CE 0%, #12B5C0 100%);

  --p1: #FF5A6E;
  --p2: #A855F7;
  --p3: #34D399;
  --p4: #F59E0B;

  --ok: #34D399;
  --warn: #F5C84C;
  --err: #FF5A6E;

  /* 当前模式辅色，由 body[data-mode] 覆盖 */
  --accent: #FF5A6E;
  --accent-soft: rgba(255, 90, 110, 0.12);

  --nav-w: 280px;
  --side-w: 480px;
  --top-h: 52px;
  --r: 10px;
  --r-lg: 14px;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

body[data-mode="video"]     { --accent: #FF5A6E; --accent-soft: rgba(255,90,110,.12); }
body[data-mode="drama"]     { --accent: #A855F7; --accent-soft: rgba(168,85,247,.12); }
body[data-mode="education"] { --accent: #34D399; --accent-soft: rgba(52,211,153,.12); }
body[data-mode="app"]       { --accent: #F59E0B; --accent-soft: rgba(245,158,11,.12); }

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  height: 100vh;
  overflow: hidden;
  background: var(--ink-900);
  color: var(--text-1);
  font-family: "Inter", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; border-radius: 4px; }

/* [hidden] 会被带 display 的类选择器覆盖，这里兜底 */
[hidden] { display: none !important; }

.mono { font-family: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace; }
.dim { color: var(--text-3); }
.muted { color: var(--text-2); }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 6px; border: 3px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,.2); background-clip: content-box; }
::-webkit-scrollbar-track { background: transparent; }

/* ---------- 外框 ---------- */
.app { display: grid; grid-template-columns: var(--nav-w) 1fr var(--side-w); height: 100vh; }
body.nav-collapsed .app { grid-template-columns: 0px 1fr var(--side-w); }
body.side-collapsed .app { grid-template-columns: var(--nav-w) 1fr 0px; }
body.nav-collapsed.side-collapsed .app { grid-template-columns: 0px 1fr 0px; }

/* ============================================================
   左栏
   ============================================================ */
.nav {
  background: var(--ink-850);
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column;
  overflow: hidden; min-width: 0;
}
.nav-head { height: var(--top-h); display: flex; align-items: center; gap: 10px; padding: 0 14px; flex: none; }
.logo { display: inline-flex; align-items: center; min-width: 0; }
.logo img { height: 13px; width: auto; display: block; }
.icon-btn {
  width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center;
  color: var(--text-3); transition: all .18s var(--ease); flex: none;
}
.icon-btn:hover { background: rgba(255,255,255,.07); color: var(--text-1); }
.icon-btn.on { background: var(--accent-soft); color: var(--accent); }

.nav-body { flex: 1; min-height: 0; overflow-y: auto; padding: 6px 10px 10px; }

.new-chat {
  display: flex; align-items: center; gap: 9px; width: 100%;
  height: 38px; padding: 0 12px; border-radius: var(--r);
  background: rgba(255,255,255,.05); border: 1px solid var(--line);
  font-weight: 500; margin-bottom: 18px;
  transition: all .18s var(--ease);
}
.new-chat:hover { background: rgba(255,255,255,.09); border-color: var(--line-strong); }
.new-chat .caret { margin-left: auto; color: var(--text-3); font-size: 11px; }

.mode-menu {
  position: absolute; z-index: 40; width: 250px; padding: 6px;
  background: var(--ink-700); border: 1px solid var(--line-strong);
  border-radius: var(--r-lg); box-shadow: 0 18px 48px rgba(0,0,0,.6);
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: all .18s var(--ease);
}
.mode-menu.open { opacity: 1; visibility: visible; transform: none; }
.mode-menu button {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 9px 10px; border-radius: 8px; text-align: left;
  transition: background .15s;
}
.mode-menu button:hover { background: rgba(255,255,255,.06); }
.mode-menu .dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.mode-menu .sub { display: block; font-size: 12px; color: var(--text-3); }

.nav-label {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  color: var(--text-3); padding: 0 8px; margin: 16px 0 6px;
}
.nav-label:first-child { margin-top: 0; }

.tree-folder { display: flex; align-items: center; gap: 7px; padding: 6px 8px; border-radius: 7px; color: var(--text-2); width: 100%; transition: background .15s; }
.tree-folder:hover { background: rgba(255,255,255,.05); }
.tree-folder .tw { font-size: 9px; color: var(--text-3); width: 8px; transition: transform .2s var(--ease); }
.tree-folder.open .tw { transform: rotate(90deg); }

.chat-item {
  display: flex; align-items: center; gap: 8px; width: 100%;
  padding: 7px 8px 7px 24px; border-radius: 7px; position: relative;
  color: var(--text-2); font-size: 13px; transition: background .15s, color .15s;
}
.chat-item:hover { background: rgba(255,255,255,.05); color: var(--text-1); }
.chat-item.on { background: rgba(255,255,255,.07); color: var(--text-1); }
.chat-item.on::before {
  content: ""; position: absolute; left: 10px; top: 8px; bottom: 8px;
  width: 2px; border-radius: 2px; background: var(--accent);
}
.chat-item .t { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; text-align: left; }
.chat-item .time { font-size: 11px; color: var(--text-3); flex: none; }

.nav-foot { flex: none; padding: 12px; border-top: 1px solid var(--line); }
.user-row { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.avatar { width: 30px; height: 30px; border-radius: 50%; background: linear-gradient(140deg, #F59E0B, #FF5A6E); flex: none; }
.quota { height: 3px; border-radius: 2px; background: rgba(255,255,255,.1); margin: 7px 0 10px; overflow: hidden; }
.quota i { display: block; height: 100%; width: 60%; background: var(--grad); border-radius: 2px; }
.upgrade {
  display: flex; align-items: center; justify-content: center; gap: 7px; width: 100%;
  height: 34px; border-radius: 9px; background: var(--grad); color: #fff;
  font-weight: 600; font-size: 13px; transition: filter .18s, transform .18s var(--ease);
}
.upgrade:hover { filter: brightness(1.1); transform: translateY(-1px); }

/* ============================================================
   中栏
   ============================================================ */
.main { display: flex; flex-direction: column; min-width: 0; min-height: 0; background: var(--ink-900); }

.top {
  height: var(--top-h); flex: none; display: flex; align-items: center; gap: 12px;
  padding: 0 16px; border-bottom: 1px solid var(--line);
}
.top .mode-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex: none; }
.top .title { font-weight: 600; font-size: 14px; }
.top .spacer { flex: 1; }
.credits {
  display: inline-flex; align-items: center; gap: 7px; height: 30px; padding: 0 12px;
  border-radius: 999px; border: 1px solid var(--line); background: rgba(255,255,255,.04);
  font-size: 12px; color: var(--text-2);
}
.credits b { color: var(--text-1); }
.top-btn {
  display: inline-flex; align-items: center; gap: 6px; height: 30px; padding: 0 12px;
  border-radius: 8px; border: 1px solid var(--line); font-size: 13px; color: var(--text-2);
  transition: all .18s var(--ease);
}
.top-btn:hover { color: var(--text-1); border-color: var(--line-strong); background: rgba(255,255,255,.05); }

.thread { flex: 1; min-height: 0; overflow-y: auto; padding: 28px 0 8px; scroll-behavior: smooth; }
.thread-inner { max-width: 720px; margin: 0 auto; padding: 0 24px; }

/* ---------- 空状态 ---------- */
.empty { max-width: 720px; margin: 0 auto; padding: 8vh 24px 0; text-align: center; }
.empty .dot-title { display: inline-flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 600; margin-bottom: 28px; }
.empty .dot-title i { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); }
.starter-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 14px; }
.starter {
  padding: 16px; border-radius: var(--r-lg); border: 1px solid var(--line);
  background: rgba(255,255,255,.025); text-align: left;
  transition: all .2s var(--ease);
}
.starter:hover { border-color: var(--accent); background: var(--accent-soft); transform: translateY(-2px); }
.starter .ico { font-size: 16px; margin-bottom: 9px; }
.starter b { display: block; font-size: 13px; margin-bottom: 4px; }
.starter span { font-size: 12px; color: var(--text-3); line-height: 1.5; }

.sample-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 14px; }
.sample {
  border-radius: var(--r); border: 1px solid var(--line); overflow: hidden;
  transition: all .2s var(--ease);
}
.sample:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.sample .cov { height: 64px; }
.sample .nm { padding: 7px; font-size: 12px; color: var(--text-2); }

.empty-label { font-size: 12px; color: var(--text-3); margin-top: 32px; text-align: left; }

/* ---------- 消息 ---------- */
.msg { margin-bottom: 26px; }
.msg-user { display: flex; justify-content: flex-end; }
.bubble {
  max-width: 78%; padding: 11px 15px; border-radius: 14px 14px 4px 14px;
  background: var(--ink-700); border: 1px solid var(--line); font-size: 14px;
}
.bubble .attach {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 9px;
  height: 26px; padding: 0 10px; border-radius: 7px;
  background: rgba(255,255,255,.06); font-size: 12px; color: var(--text-2);
}

.agent-head { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 13px; margin-bottom: 14px; }
.agent-head .mark { width: 15px; height: 15px; border-radius: 4px; background: var(--grad); transform: rotate(45deg); }

/* 折叠步骤行 */
.step {
  border-radius: 9px; margin-bottom: 8px;
  border: 1px solid transparent; transition: border-color .2s, background .2s;
}
.step.open { border-color: var(--line); background: rgba(255,255,255,.02); }
.step-row {
  display: flex; align-items: center; gap: 9px; width: 100%;
  padding: 6px 9px; font-size: 13px; color: var(--text-2); text-align: left;
  border-radius: 9px; transition: background .15s;
}
.step-row:hover { background: rgba(255,255,255,.04); color: var(--text-1); }
.step-row .st { color: var(--ok); flex: none; font-size: 12px; }
.step-row .st.run { color: var(--accent); animation: spin 1.1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.step-row .dur { color: var(--text-3); font-size: 12px; margin-left: auto; }
.step-row .tw { color: var(--text-3); font-size: 10px; transition: transform .2s var(--ease); }
.step.open .step-row .tw { transform: rotate(90deg); }
.step-detail { display: none; padding: 2px 12px 12px 30px; font-size: 12.5px; color: var(--text-3); }
.step.open .step-detail { display: block; }
.step-detail .tool { display: flex; gap: 8px; padding: 4px 0; }
.step-detail .tool b { color: var(--text-2); font-weight: 500; }
.step-detail .res { padding-left: 18px; color: var(--text-3); }

.say { font-size: 14px; line-height: 1.75; margin: 14px 0; color: var(--text-1); }
.say.small { font-size: 13.5px; color: var(--text-2); }

.tool-call {
  display: inline-flex; align-items: center; gap: 8px; margin: 12px 0;
  font-size: 13px; color: var(--text-2);
}
.tool-call .sp { color: var(--accent); }
.tool-call .ok { color: var(--ok); }

/* ---------- 产物卡 ---------- */
.artifact {
  border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden;
  background: rgba(255,255,255,.025); margin: 12px 0;
  transition: border-color .2s, transform .2s var(--ease);
}
.artifact:hover { border-color: var(--line-strong); }
.artifact-head {
  display: flex; align-items: center; gap: 9px; padding: 11px 13px;
  font-size: 13px; font-weight: 500; border-bottom: 1px solid var(--line);
}
.artifact-head .open { margin-left: auto; color: var(--accent); font-size: 12.5px; font-weight: 500; }
.artifact-body { padding: 12px 13px; font-size: 12.5px; color: var(--text-3); }
.script-line { padding: 4px 0; display: flex; gap: 8px; }
.script-line b { color: var(--accent); font-weight: 600; flex: none; }

/* 生成中的批次 */
.batch-tiles { display: flex; gap: 8px; margin: 10px 0 12px; }
.tile {
  width: 52px; aspect-ratio: 9/16; border-radius: 7px; position: relative; overflow: hidden;
  border: 1px solid var(--line); background: var(--ink-700);
  display: grid; place-items: center; font-size: 10px; color: var(--text-3);
}
.tile.ok { border-color: rgba(52,211,153,.4); background: linear-gradient(160deg, rgba(52,211,153,.14), transparent); color: var(--ok); }
.tile.run { border-color: var(--accent); color: var(--accent); }
.tile.fail { border-color: rgba(255,90,110,.5); background: linear-gradient(160deg, rgba(255,90,110,.14), transparent); color: var(--err); }
.tile .fill { position: absolute; left: 0; right: 0; bottom: 0; background: var(--accent-soft); transition: height .3s linear; }
.tile span { position: relative; z-index: 1; }
.batch-foot { display: flex; align-items: center; gap: 10px; font-size: 12.5px; color: var(--text-3); }
.batch-foot .link { margin-left: auto; color: var(--accent); }

/* 快捷回复 */
.quick { display: flex; gap: 9px; flex-wrap: wrap; margin: 14px 0 4px; }
.quick button {
  height: 32px; padding: 0 14px; border-radius: 8px; font-size: 13px;
  border: 1px solid var(--line); background: rgba(255,255,255,.04); color: var(--text-2);
  transition: all .18s var(--ease);
}
.quick button:hover { color: var(--text-1); border-color: var(--accent); background: var(--accent-soft); }

/* 失败卡 */
.fail-card {
  border: 1px solid rgba(255,90,110,.35); border-radius: var(--r-lg);
  background: rgba(255,90,110,.05); margin: 12px 0;
}
.fail-card .fh { display: flex; align-items: center; gap: 9px; padding: 11px 13px; font-size: 13px; color: var(--err); font-weight: 500; }
.fail-card .fb { padding: 0 13px 13px; font-size: 12.5px; color: var(--text-2); }
.fail-card .fb .row { padding: 3px 0; }
.fail-card .acts { display: flex; gap: 8px; margin-top: 11px; flex-wrap: wrap; }
.fail-card .acts button {
  height: 30px; padding: 0 13px; border-radius: 8px; font-size: 12.5px;
  border: 1px solid var(--line-strong); background: rgba(255,255,255,.05);
  transition: all .18s var(--ease);
}
.fail-card .acts button:hover { background: rgba(255,255,255,.1); }
.fail-card .note { margin-top: 9px; font-size: 12px; color: var(--ok); }

/* 完成汇报 */
.report { font-size: 13.5px; line-height: 1.85; }
.report b { font-weight: 600; }
.report ul { margin: 8px 0; }
.report li { padding-left: 14px; position: relative; color: var(--text-2); }
.report li::before { content: "·"; position: absolute; left: 3px; color: var(--accent); }
.done-bar {
  display: flex; align-items: center; gap: 9px; margin: 16px 0 6px;
  padding: 10px 13px; border-radius: var(--r); font-size: 13px;
  border: 1px solid var(--line); background: rgba(255,255,255,.03); color: var(--text-2);
}
.done-bar .st { color: var(--ok); }
.msg-acts { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
.msg-acts button { white-space: nowrap; }
.msg-acts button { font-size: 12px; color: var(--text-3); padding: 4px 8px; border-radius: 6px; transition: all .15s; }
.msg-acts button:hover { color: var(--text-1); background: rgba(255,255,255,.06); }

/* ---------- 输入区 ---------- */
.composer-wrap { flex: none; padding: 10px 24px 20px; }
.composer {
  max-width: 720px; margin: 0 auto;
  border: 1px solid var(--line-strong); border-radius: var(--r-lg);
  background: var(--ink-800); overflow: hidden;
  transition: border-color .2s;
}
.composer:focus-within { border-color: var(--accent); }
.composer textarea {
  width: 100%; border: 0; background: none; resize: none; outline: none;
  padding: 13px 15px 4px; font-size: 14px; line-height: 1.6; min-height: 48px; max-height: 180px;
}
.composer textarea::placeholder { color: var(--text-3); }
.chips { display: flex; gap: 7px; padding: 0 15px 8px; flex-wrap: wrap; }
.chips:empty { display: none; }
.chip-a {
  display: inline-flex; align-items: center; gap: 6px; height: 26px; padding: 0 9px;
  border-radius: 7px; background: rgba(255,255,255,.06); font-size: 12px; color: var(--text-2);
}
.chip-a button { color: var(--text-3); font-size: 13px; line-height: 1; }
.chip-a button:hover { color: var(--text-1); }

.composer-bar { display: flex; align-items: center; gap: 4px; padding: 7px 9px 9px; }
.cbtn {
  display: inline-flex; align-items: center; gap: 6px; height: 30px; padding: 0 10px;
  border-radius: 8px; font-size: 12.5px; color: var(--text-3); transition: all .18s var(--ease);
}
.cbtn:hover { color: var(--text-1); background: rgba(255,255,255,.06); }
.cbtn.on { color: var(--accent); background: var(--accent-soft); }
.composer-bar .sp { flex: 1; }
.mode-select {
  height: 30px; padding: 0 10px; border-radius: 8px; font-size: 12.5px;
  color: var(--text-2); background: rgba(255,255,255,.05); border: 1px solid var(--line);
  cursor: pointer;
}
.send {
  width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center;
  background: var(--grad); color: #fff; margin-left: 6px;
  transition: filter .18s, transform .18s var(--ease);
}
.send:hover { filter: brightness(1.12); transform: translateY(-1px); }
.send.stop { background: var(--err); }

/* 参数面板 */
.params {
  max-width: 720px; margin: 0 auto 10px; padding: 16px;
  border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--ink-800);
  display: none;
}
.params.open { display: block; animation: slideup .22s var(--ease); }
@keyframes slideup { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.prow { display: grid; grid-template-columns: 76px 1fr; gap: 12px; align-items: center; padding: 6px 0; }
.prow > span { font-size: 12.5px; color: var(--text-3); }
.seg { display: flex; gap: 6px; flex-wrap: wrap; }
.seg button {
  height: 28px; padding: 0 12px; border-radius: 7px; font-size: 12.5px;
  border: 1px solid var(--line); color: var(--text-2); transition: all .16s var(--ease);
}
.seg button:hover { border-color: var(--line-strong); color: var(--text-1); }
.seg button.on { background: var(--accent); border-color: var(--accent); color: #0B0B10; font-weight: 600; }

/* ============================================================
   右栏工作台
   ============================================================ */
.side {
  background: var(--ink-850); border-left: 1px solid var(--line);
  display: flex; flex-direction: column; overflow: hidden; min-width: 0;
}
.side-top {
  height: var(--top-h); flex: none; display: flex; align-items: center; gap: 2px;
  padding: 0 10px; border-bottom: 1px solid var(--line);
}
.tab {
  height: 30px; padding: 0 12px; border-radius: 8px; font-size: 13px; color: var(--text-3);
  transition: all .18s var(--ease);
}
.tab:hover { color: var(--text-1); background: rgba(255,255,255,.05); }
.tab.on { color: var(--text-1); background: rgba(255,255,255,.08); font-weight: 500; }
.tab .n { font-size: 11px; color: var(--text-3); margin-left: 4px; }
.side-top .sp { flex: 1; }
.side-body { flex: 1; min-height: 0; overflow-y: auto; padding: 16px; }
.panel { display: none; }
.panel.on { display: block; animation: slideup .22s var(--ease); }

/* 成片预览 */
.player { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.stage9 {
  aspect-ratio: 9/16; border-radius: var(--r-lg); position: relative; overflow: hidden;
  border: 1px solid var(--line); background: linear-gradient(165deg, #5A1E2C, #24101A);
}
.stage9 .play {
  position: absolute; inset: 0; margin: auto; width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,.16); backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,.3); display: grid; place-items: center; color: #fff;
  transition: transform .2s var(--ease), background .2s;
}
.stage9 .play:hover { transform: scale(1.08); background: rgba(255,255,255,.26); }
.stage9 .sub9 {
  position: absolute; left: 10px; right: 10px; bottom: 30px; text-align: center;
  font-size: 11.5px; font-weight: 600; color: #fff; text-shadow: 0 1px 4px rgba(0,0,0,.8);
}
.stage9 .scrub { position: absolute; left: 10px; right: 10px; bottom: 12px; }
.stage9 .scrub .bar { height: 3px; border-radius: 2px; background: rgba(255,255,255,.25); overflow: hidden; }
.stage9 .scrub .bar i { display: block; height: 100%; background: #fff; border-radius: 2px; transition: width .2s linear; }
.stage9 .scrub .t { display: flex; justify-content: space-between; font-size: 10px; color: rgba(255,255,255,.8); margin-top: 4px; }

.meta h3 { font-size: 15px; margin-bottom: 4px; }
.meta .cap { font-size: 12px; color: var(--text-3); padding-bottom: 12px; border-bottom: 1px solid var(--line); margin-bottom: 12px; }
.mrow { display: flex; align-items: center; justify-content: space-between; padding: 6px 0; font-size: 12.5px; }
.mrow > span { color: var(--text-3); }
.mini-select {
  height: 26px; padding: 0 8px; border-radius: 7px; font-size: 12px;
  background: rgba(255,255,255,.05); border: 1px solid var(--line); color: var(--text-1); cursor: pointer;
}
.meta .acts { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 14px; }
.sbtn {
  height: 32px; border-radius: 8px; font-size: 12.5px; display: inline-flex;
  align-items: center; justify-content: center; gap: 6px;
  border: 1px solid var(--line); background: rgba(255,255,255,.05); color: var(--text-2);
  transition: all .18s var(--ease);
}
.sbtn:hover { color: var(--text-1); border-color: var(--line-strong); background: rgba(255,255,255,.09); }
.sbtn.primary { background: var(--accent); border-color: var(--accent); color: #0B0B10; font-weight: 600; }
.sbtn.primary:hover { filter: brightness(1.08); color: #0B0B10; }

.sec-label { font-size: 11px; font-weight: 600; letter-spacing: .07em; text-transform: uppercase; color: var(--text-3); margin: 22px 0 9px; }

/* 分镜 */
.shots { display: grid; grid-template-columns: repeat(5, 1fr); gap: 7px; }
.shot {
  padding: 9px 6px; border-radius: 9px; border: 1px solid var(--line);
  background: rgba(255,255,255,.025); text-align: center; transition: all .18s var(--ease);
}
.shot:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.shot.on { border-color: var(--accent); background: var(--accent-soft); }
.shot .n { font-size: 12px; font-weight: 600; }
.shot .t { font-size: 10px; color: var(--text-3); margin-top: 2px; }

.shot-detail { margin-top: 12px; border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.shot-detail .sd-head { padding: 10px 12px; font-size: 12.5px; font-weight: 600; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.02); }
.sd-row { display: grid; grid-template-columns: 40px 1fr auto; gap: 10px; padding: 9px 12px; font-size: 12.5px; align-items: start; border-bottom: 1px solid var(--line); }
.sd-row:last-child { border-bottom: 0; }
.sd-row > .k { color: var(--text-3); }
.sd-row > .v { color: var(--text-1); line-height: 1.55; }
.sd-row .act { font-size: 12px; color: var(--accent); white-space: nowrap; }

/* 其他成片缩略 */
.others { display: flex; gap: 8px; align-items: center; }
.oth {
  width: 46px; aspect-ratio: 9/16; border-radius: 7px; border: 1px solid var(--line);
  position: relative; overflow: hidden; display: grid; place-items: center;
  font-size: 11px; font-weight: 600; color: rgba(255,255,255,.75); transition: all .18s var(--ease);
}
.oth:hover { transform: translateY(-2px); border-color: var(--line-strong); }
.oth.on { border-color: var(--accent); }
.oth .warn { position: absolute; top: 3px; right: 3px; font-size: 9px; color: var(--err); }

/* 网格模式 */
.grid5 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.gcard { border-radius: var(--r); overflow: hidden; border: 1px solid var(--line); position: relative; transition: all .18s var(--ease); }
.gcard:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.gcard.sel { border-color: var(--accent); }
.gcard .g9 { aspect-ratio: 9/16; position: relative; display: grid; place-items: center; }
.gcard .g9 .pl { width: 30px; height: 30px; border-radius: 50%; background: rgba(255,255,255,.18); display: grid; place-items: center; font-size: 11px; }
.gcard .gm { padding: 7px 8px; font-size: 11px; color: var(--text-2); display: flex; justify-content: space-between; align-items: center; background: var(--ink-800); }
.gcard .ck {
  position: absolute; top: 6px; left: 6px; width: 17px; height: 17px; border-radius: 5px;
  border: 1px solid rgba(255,255,255,.5); background: rgba(0,0,0,.45);
  display: grid; place-items: center; font-size: 10px; color: transparent;
}
.gcard.sel .ck { background: var(--accent); border-color: var(--accent); color: #0B0B10; }
.gbar { display: flex; align-items: center; gap: 8px; margin-top: 14px; font-size: 12.5px; color: var(--text-3); }
.gbar .sp { flex: 1; }

/* 脚本面板 */
.script-card { border: 1px solid var(--line); border-radius: var(--r-lg); margin-bottom: 10px; overflow: hidden; transition: border-color .2s; }
.script-card:hover { border-color: var(--line-strong); }
.script-card .sh { display: flex; align-items: center; gap: 9px; padding: 11px 13px; font-size: 13px; font-weight: 500; }
.script-card .sh b { color: var(--accent); }
.script-card .sh .tagx { margin-left: auto; font-size: 11px; color: var(--text-3); }
.script-card .sb { padding: 0 13px 12px; font-size: 12.5px; color: var(--text-2); line-height: 1.7; }

/* 素材面板 */
.assets-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; }
.asset { aspect-ratio: 1; border-radius: 9px; border: 1px solid var(--line); position: relative; overflow: hidden; }
.asset .lb { position: absolute; left: 0; right: 0; bottom: 0; padding: 5px 7px; font-size: 10px; background: linear-gradient(transparent, rgba(0,0,0,.75)); color: rgba(255,255,255,.85); }

/* 空工作台 */
.side-empty { display: grid; place-items: center; height: 100%; text-align: center; padding: 24px; }
.side-empty .ic { font-size: 26px; opacity: .3; margin-bottom: 12px; }
.side-empty p { font-size: 13px; color: var(--text-3); line-height: 1.7; }

/* 折叠时的把手 */
.side-handle {
  position: fixed; right: 0; top: 50%; transform: translateY(-50%); z-index: 55;
  width: 22px; height: 64px; border-radius: 9px 0 0 9px;
  border: 1px solid var(--line); border-right: 0; background: var(--ink-700);
  display: none; place-items: center; color: var(--text-3); font-size: 11px;
}
body.side-collapsed .side-handle { display: grid; }
.side-handle:hover { color: var(--text-1); background: var(--ink-600); }

/* Toast */
.toast {
  position: fixed; top: 64px; right: 20px; z-index: 90;
  padding: 10px 15px; border-radius: var(--r); font-size: 13px;
  background: var(--ink-600); border: 1px solid var(--line-strong);
  box-shadow: 0 14px 40px rgba(0,0,0,.5);
  opacity: 0; transform: translateY(-8px); transition: all .24s var(--ease); pointer-events: none;
}
.toast.show { opacity: 1; transform: none; }

/* 返回官网 */
.back-site { font-size: 12px; color: var(--text-3); display: flex; align-items: center; gap: 6px; padding: 6px 8px; border-radius: 7px; }
.back-site:hover { color: var(--text-1); background: rgba(255,255,255,.05); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1280px) { :root { --side-w: 400px; } }

@media (max-width: 1024px) {
  :root { --nav-w: 240px; }
  .app { grid-template-columns: var(--nav-w) 1fr; }
  body.side-collapsed .app, body.nav-collapsed .app { grid-template-columns: var(--nav-w) 1fr; }
  body.nav-collapsed .app { grid-template-columns: 0px 1fr; }
  .side {
    position: fixed; right: 0; top: 0; bottom: 0; width: min(480px, 62vw); z-index: 50;
    transform: translateX(100%); transition: transform .28s var(--ease);
    box-shadow: -18px 0 50px rgba(0,0,0,.5);
  }
  body:not(.side-collapsed) .side { transform: none; }
  .player { grid-template-columns: 1fr; }
  .stage9 { width: min(220px, 100%); justify-self: center; }
}

@media (max-width: 768px) {
  /* 这三条要一起写：1024 断点里的 body.side-collapsed .app 特指度更高，
     只覆盖 .app 的话手机上主区会一直停在 240px */
  .app,
  body.side-collapsed .app,
  body.nav-collapsed .app { grid-template-columns: 1fr; }
  .nav {
    position: fixed; left: 0; top: 0; bottom: 0; width: 280px; z-index: 60;
    transform: translateX(-100%); transition: transform .28s var(--ease);
  }
  body.nav-open .nav { transform: none; }
  .side { width: 100%; }
  .thread-inner, .composer, .params, .empty { max-width: 100%; }
  .composer-wrap { padding: 8px 14px 14px; }
  .thread { padding-top: 18px; }
  .thread-inner { padding: 0 14px; }
  .starter-grid { grid-template-columns: 1fr; }
  .sample-row { grid-template-columns: repeat(2, 1fr); }
  .grid5 { grid-template-columns: repeat(2, 1fr); }
  .shots { grid-template-columns: repeat(5, 1fr); gap: 5px; }
  .top .title { font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 40vw; }
  .hide-sm { display: none !important; }
  .lb { display: none; }
  .cbtn { padding: 0 9px; }
  .top-btn { padding: 0 10px; }
  .mode-select { max-width: 92px; }
  .composer-bar .mini-sel { max-width: 116px; font-size: 11.5px; padding: 0 4px; }
  /* 模型/强度选择器放不下时换行，发送按钮始终贴右 */
  .composer-bar { flex-wrap: wrap; row-gap: 6px; }
  .composer-bar .sp { display: none; }
  .send { margin-left: auto; }
  .done-bar { flex-wrap: wrap; }
}

.scrim {
  position: fixed; inset: 0; z-index: 45; background: rgba(0,0,0,.55);
  opacity: 0; visibility: hidden; transition: all .25s var(--ease);
}
body.nav-open .scrim { opacity: 1; visibility: visible; }
@media (min-width: 769px) { .scrim { display: none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  .thread { scroll-behavior: auto; }
}

/* ============================================================
   短剧模式 · 右栏工作台
   对应设计稿 docs/design/05-studio.md §7
   ============================================================ */

/* 面包屑 */
.crumb {
  display: flex; align-items: center; gap: 7px; flex-wrap: wrap;
  font-size: 12.5px; color: var(--text-3); margin-bottom: 12px;
}
.crumb b { color: var(--text-1); font-weight: 600; }
.crumb .sep { opacity: .5; }

/* 16:9 舞台 */
.stage16 {
  aspect-ratio: 16/9; border-radius: var(--r-lg); position: relative; overflow: hidden;
  border: 1px solid var(--line);
}
.stage16 .play {
  position: absolute; inset: 0; margin: auto; width: 46px; height: 46px; border-radius: 50%;
  background: rgba(0,0,0,.4); backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,.3); display: grid; place-items: center; color: #fff;
  transition: transform .2s var(--ease), background .2s;
}
.stage16 .play:hover { transform: scale(1.08); background: rgba(0,0,0,.6); }
.stage16 .ep { position: absolute; left: 12px; top: 11px; font-size: 11px; font-weight: 600; color: var(--accent); }
.stage16 .nm { position: absolute; left: 12px; top: 28px; font-size: 14px; font-weight: 600; }
.stage16 .line {
  position: absolute; left: 12px; right: 12px; bottom: 30px; text-align: center;
  font-size: 12px; color: #fff; text-shadow: 0 1px 5px rgba(0,0,0,.9); line-height: 1.5;
}
.stage16 .scrub { position: absolute; left: 12px; right: 12px; bottom: 11px; }
.stage16 .scrub .bar { height: 3px; border-radius: 2px; background: rgba(255,255,255,.25); overflow: hidden; }
.stage16 .scrub .bar i { display: block; height: 100%; background: #fff; border-radius: 2px; }
.stage16 .scrub .t { display: flex; justify-content: space-between; font-size: 10px; color: rgba(255,255,255,.8); margin-top: 4px; }

/* 剧集进度条 */
.eps { display: grid; grid-template-columns: repeat(10, 1fr); gap: 4px; }
.ep-cell {
  aspect-ratio: 1; border-radius: 6px; border: 1px solid var(--line);
  display: grid; place-items: center; font-size: 10px; font-weight: 600;
  color: var(--text-3); background: rgba(255,255,255,.02);
  transition: all .16s var(--ease); position: relative; overflow: hidden;
}
.ep-cell:hover { border-color: var(--line-strong); transform: translateY(-1px); }
.ep-cell.ok { border-color: rgba(52,211,153,.4); background: rgba(52,211,153,.1); color: var(--ok); }
.ep-cell.run { border-color: var(--accent); color: var(--accent); }
.ep-cell.run .fill { position: absolute; inset: auto 0 0 0; background: var(--accent-soft); }
.ep-cell.on { border-color: var(--accent); background: var(--accent); color: #0B0B10; }
.ep-cell span { position: relative; z-index: 1; }
.ep-legend { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 9px; font-size: 11px; color: var(--text-3); }
.ep-legend i { display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 5px; vertical-align: 0; }

/* 剧本块 */
.screenplay {
  border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden;
  background: rgba(255,255,255,.02);
}
.screenplay .sp-head {
  display: flex; align-items: center; gap: 8px; padding: 10px 12px;
  font-size: 12.5px; font-weight: 600; border-bottom: 1px solid var(--line);
}
.screenplay .sp-head .act { margin-left: auto; font-size: 12px; color: var(--accent); font-weight: 500; }
.screenplay .sp-body { padding: 12px; font-size: 12.5px; line-height: 1.9; max-height: 260px; overflow-y: auto; }
.screenplay .sp-body.all { max-height: none; }
.sl-scene { color: var(--text-3); }
.sl-move { color: var(--p2); }
.sl-name { color: var(--text-1); font-weight: 600; }
.sl-note { color: var(--text-3); font-size: 11.5px; }
.sl-line { color: var(--text-1); }
.sl-line.on { background: var(--accent-soft); border-radius: 5px; padding: 0 4px; }

/* 角色 */
.cast { display: flex; gap: 8px; flex-wrap: wrap; }
.cast-chip {
  display: inline-flex; align-items: center; gap: 8px; height: 34px; padding: 0 12px 0 4px;
  border-radius: 999px; border: 1px solid var(--line); background: rgba(255,255,255,.03);
  font-size: 12.5px; transition: all .18s var(--ease);
}
.cast-chip:hover { border-color: var(--accent); background: var(--accent-soft); }
.cast-chip .face { width: 26px; height: 26px; border-radius: 50%; flex: none; }

.char-card { border: 1px solid var(--line); border-radius: var(--r-lg); padding: 14px; margin-bottom: 10px; transition: border-color .2s; }
.char-card:hover { border-color: var(--line-strong); }
.char-top { display: flex; gap: 12px; }
.char-top .face { width: 52px; height: 52px; border-radius: 12px; flex: none; }
.char-top h4 { font-size: 14px; }
.char-top .role { font-size: 11px; color: var(--accent); margin-left: 6px; font-weight: 500; }
.char-top .bio { font-size: 12px; color: var(--text-3); margin-top: 4px; line-height: 1.6; }
.char-meta { display: flex; align-items: center; gap: 10px; margin-top: 11px; font-size: 12px; flex-wrap: wrap; }
.lock {
  display: inline-flex; align-items: center; gap: 6px; height: 26px; padding: 0 10px;
  border-radius: 7px; border: 1px solid var(--line); font-size: 12px; color: var(--text-3);
  transition: all .18s var(--ease);
}
.lock.on { border-color: var(--ok); color: var(--ok); background: rgba(52,211,153,.1); }
.refs { display: flex; gap: 6px; margin-top: 11px; align-items: center; }
.ref {
  width: 44px; aspect-ratio: 3/4; border-radius: 7px; border: 1px solid var(--line);
  display: grid; place-items: end center; padding-bottom: 3px; font-size: 9px; color: rgba(255,255,255,.7);
}
.ref.add { border-style: dashed; color: var(--text-3); place-items: center; font-size: 14px; }
.ref.add:hover { border-color: var(--accent); color: var(--accent); }

.hint {
  margin-top: 14px; padding: 11px 13px; border-radius: var(--r);
  background: var(--accent-soft); font-size: 12.5px; color: var(--text-2); line-height: 1.7;
}

/* 短剧的批次格子是横版 */
.tile.wide { width: 74px; aspect-ratio: 16/9; }

@media (max-width: 1024px) {
  .stage16 { width: 100%; }
}
@media (max-width: 768px) {
  .eps { grid-template-columns: repeat(5, 1fr); }
}

/* ============================================================
   登录态：左栏底部 + 未登录拦截弹窗
   ============================================================ */
.avatar-txt {
  display: grid; place-items: center; font-size: 12px; font-weight: 700; color: #0B0B10;
}
.signin-btn {
  display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%;
  height: 36px; border-radius: 9px; background: var(--grad); color: #fff;
  font-weight: 600; font-size: 13px; transition: filter .18s, transform .18s var(--ease);
}
.signin-btn:hover { filter: brightness(1.1); transform: translateY(-1px); }
.nav-foot .anon { font-size: 12px; color: var(--text-3); line-height: 1.6; margin-bottom: 10px; }
.signout { font-size: 12px; color: var(--text-3); padding: 4px 8px; border-radius: 6px; }
.signout:hover { color: var(--text-1); background: rgba(255,255,255,.06); }

.modal-scrim {
  position: fixed; inset: 0; z-index: 120; display: grid; place-items: center; padding: 20px;
  background: rgba(0,0,0,.72); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  opacity: 0; visibility: hidden; transition: all .24s var(--ease);
}
.modal-scrim.on { opacity: 1; visibility: visible; }
.modal {
  width: 100%; max-width: 420px; padding: 28px; border-radius: 18px;
  border: 1px solid var(--line-strong); background: var(--ink-700);
  box-shadow: 0 30px 80px rgba(0,0,0,.6);
  transform: translateY(10px); transition: transform .24s var(--ease);
}
.modal-scrim.on .modal { transform: none; }
.modal h3 { font-size: 19px; margin-bottom: 10px; }
.modal p { font-size: 13.5px; color: var(--text-2); line-height: 1.75; }
.modal .acts { display: grid; gap: 9px; margin-top: 22px; }
.modal .acts a, .modal .acts button {
  display: flex; align-items: center; justify-content: center; height: 42px;
  border-radius: 11px; font-size: 14px; font-weight: 600; transition: all .18s var(--ease);
}
.modal .acts .go { background: var(--grad); color: #fff; }
.modal .acts .go:hover { filter: brightness(1.1); }
.modal .acts .later { border: 1px solid var(--line); color: var(--text-2); font-weight: 500; }
.modal .acts .later:hover { background: rgba(255,255,255,.06); color: var(--text-1); }

/* ============================================================
   AI App（Vibe Coding）模式
   ============================================================ */

/* 顶栏环境徽标 */
.env-badge {
  display: inline-flex; align-items: center; gap: 7px; height: 24px; padding: 0 10px;
  border-radius: 7px; border: 1px solid var(--line); background: rgba(255,255,255,.04);
  font-size: 12px; color: var(--text-3); white-space: nowrap;
}
.env-badge b { color: var(--text-2); font-weight: 500; }
.env-badge .sep { opacity: .45; }

/* 底部模型 / 强度 */
.composer-bar .mini-sel {
  height: 30px; padding: 0 8px; border-radius: 8px; font-size: 12px;
  color: var(--text-3); background: none; border: 0; cursor: pointer;
  max-width: 170px; text-overflow: ellipsis;
}
.composer-bar .mini-sel:hover { color: var(--text-1); background: rgba(255,255,255,.06); }

/* 左栏会话状态点 */
.chat-item .st-dot { width: 6px; height: 6px; border-radius: 50%; flex: none; }
.chat-item .st-dot.run { background: var(--p4); box-shadow: 0 0 0 3px rgba(245,158,11,.16); }
.chat-item .st-dot.ok { background: var(--ok); }
.chat-item .st-dot.err { background: var(--err); }

/* 设备框 */
.device-bar { display: flex; align-items: center; gap: 6px; margin-bottom: 14px; }
.device-bar .seg2 { display: flex; gap: 4px; padding: 3px; border-radius: 9px; border: 1px solid var(--line); background: rgba(255,255,255,.03); }
.device-bar .seg2 button { height: 26px; padding: 0 11px; border-radius: 7px; font-size: 12px; color: var(--text-3); transition: all .16s var(--ease); }
.device-bar .seg2 button.on { background: rgba(255,255,255,.1); color: var(--text-1); font-weight: 500; }
.device-bar .url {
  margin-left: auto; display: inline-flex; align-items: center; gap: 6px; height: 26px; padding: 0 10px;
  border-radius: 7px; background: rgba(255,255,255,.04); border: 1px solid var(--line);
  font-size: 11px; color: var(--text-3); max-width: 55%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.device {
  border: 1px solid var(--line-strong); border-radius: 14px; overflow: hidden;
  background: #0F1016; margin: 0 auto; transition: max-width .3s var(--ease);
}
.device.phone { max-width: 260px; }
.device.tablet { max-width: 380px; }
.device.desktop { max-width: 100%; }
.device .chrome {
  height: 28px; display: flex; align-items: center; gap: 5px; padding: 0 10px;
  border-bottom: 1px solid var(--line); background: rgba(255,255,255,.03);
}
.device .chrome i { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,.14); }
.device .chrome .u { margin-left: 8px; font-size: 10px; color: var(--text-3); }

/* 假 App 界面 */
.fake { padding: 12px; font-size: 11px; }
.fake .fh { display: flex; align-items: center; justify-content: space-between; margin-bottom: 11px; }
.fake .fh b { font-size: 12.5px; }
.fake .btn-x { height: 24px; padding: 0 10px; border-radius: 7px; background: var(--accent); color: #0B0B10; font-weight: 600; font-size: 10.5px; display: inline-flex; align-items: center; }
.fake .weeks { display: flex; gap: 5px; margin-bottom: 11px; }
.fake .weeks span { height: 22px; padding: 0 9px; border-radius: 6px; border: 1px solid var(--line); color: var(--text-3); display: inline-flex; align-items: center; font-size: 10px; }
.fake .weeks span.on { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.fake .card-x { border: 1px solid var(--line); border-radius: 9px; padding: 10px; margin-bottom: 8px; background: rgba(255,255,255,.02); }
.fake .card-x .who { display: flex; align-items: center; gap: 7px; margin-bottom: 7px; }
.fake .card-x .ava { width: 18px; height: 18px; border-radius: 50%; flex: none; }
.fake .card-x .ln { height: 6px; border-radius: 3px; background: rgba(255,255,255,.1); margin-bottom: 5px; }
.fake .card-x .mention { color: var(--accent); }
.fake .grow-in { animation: growin .45s var(--ease) both; }
@keyframes growin { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* 文件树 + 代码 */
.code-split { display: grid; grid-template-rows: auto 1fr; gap: 12px; }
.tree { border: 1px solid var(--line); border-radius: var(--r); padding: 8px; max-height: 210px; overflow: auto; }
.tree button {
  display: flex; align-items: center; gap: 7px; width: 100%; padding: 4px 7px; border-radius: 6px;
  font-size: 12px; color: var(--text-2); text-align: left; transition: background .15s;
  font-family: "JetBrains Mono", ui-monospace, monospace;
}
.tree button:hover { background: rgba(255,255,255,.05); color: var(--text-1); }
.tree button.on { background: var(--accent-soft); color: var(--accent); }
.tree .dep { display: inline-block; }
.tree .new { margin-left: auto; font-size: 9px; color: var(--ok); font-family: Inter, sans-serif; }

.code {
  border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; background: #0B0C12;
}
.code .ch { display: flex; align-items: center; gap: 8px; padding: 8px 11px; border-bottom: 1px solid var(--line); font-size: 11.5px; color: var(--text-3); }
.code .ch .fn { color: var(--text-2); font-family: "JetBrains Mono", monospace; }
.code .ch .cp { margin-left: auto; font-size: 11px; color: var(--accent); }
.code pre {
  margin: 0; padding: 12px; font-size: 11.5px; line-height: 1.75; overflow: auto; max-height: 330px;
  font-family: "JetBrains Mono", ui-monospace, monospace; color: #C9CCE0;
}
.code .k { color: #C084FC; }   /* 关键字 */
.code .s { color: #7FD88F; }   /* 字符串 */
.code .f { color: #63B3ED; }   /* 函数/组件 */
.code .c { color: #5C6079; }   /* 注释 */
.code .p { color: #F0A868; }   /* 属性 */

/* 数据库 */
.tbl { border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; margin-bottom: 12px; }
.tbl .th {
  display: flex; align-items: center; gap: 8px; padding: 9px 12px; font-size: 12.5px; font-weight: 600;
  border-bottom: 1px solid var(--line); background: rgba(255,255,255,.03);
  font-family: "JetBrains Mono", monospace;
}
.tbl .th .rows { margin-left: auto; font-size: 11px; color: var(--text-3); font-family: Inter, sans-serif; font-weight: 400; }
.tbl .col { display: grid; grid-template-columns: 1fr auto; gap: 10px; padding: 7px 12px; font-size: 11.5px; border-bottom: 1px solid rgba(255,255,255,.04); font-family: "JetBrains Mono", monospace; }
.tbl .col:last-child { border-bottom: 0; }
.tbl .col .nm { color: var(--text-1); }
.tbl .col .ty { color: var(--text-3); }
.tbl .col .pk { color: var(--p4); font-size: 10px; }

/* 部署 */
.deploy-box { border: 1px solid var(--line); border-radius: var(--r-lg); padding: 16px; }
.deploy-url {
  display: flex; align-items: center; gap: 9px; padding: 10px 12px; border-radius: var(--r);
  background: rgba(255,255,255,.04); border: 1px solid var(--line); margin-bottom: 14px;
  font-size: 12px; font-family: "JetBrains Mono", monospace; color: var(--text-2);
}
.deploy-url .live { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); flex: none; box-shadow: 0 0 0 3px rgba(52,211,153,.18); }
.deploy-url .cp { margin-left: auto; font-size: 11px; color: var(--accent); font-family: Inter, sans-serif; }
.build-log {
  border: 1px solid var(--line); border-radius: var(--r); background: #0B0C12; padding: 11px;
  font-size: 11px; line-height: 1.85; font-family: "JetBrains Mono", monospace; color: var(--text-3);
  max-height: 180px; overflow: auto;
}
.build-log .ok { color: var(--ok); }
.build-log .run { color: var(--accent); }

/* ---------- 语言切换 ---------- */
.lang-switch {
  width: 100%; height: 30px; padding: 0 8px; border-radius: 8px; font-size: 12.5px;
  color: var(--text-3); background: rgba(255,255,255,.04);
  border: 1px solid var(--line); cursor: pointer; transition: all .18s var(--ease);
}
.lang-switch:hover { color: var(--text-1); border-color: var(--line-strong); }

/* ---------- 拉丁语种的排版微调 ---------- */
html:not([lang="zh-CN"]) .tab { padding: 0 10px; font-size: 12.5px; }
html:not([lang="zh-CN"]) .cbtn { padding: 0 8px; }
html:not([lang="zh-CN"]) .top-btn { white-space: nowrap; }

/* ============================================================
   AI 教育模式
   ============================================================ */

/* 课件翻页器 */
.deck { border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; background: var(--ink-900); }
.deck-bar {
  display: flex; align-items: center; gap: 8px; padding: 8px 11px;
  border-bottom: 1px solid var(--line); font-size: 12px; color: var(--text-3);
  background: rgba(255,255,255,.02);
}
.deck-bar .pg { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; }
.deck-bar button {
  width: 24px; height: 24px; border-radius: 6px; color: var(--text-3);
  display: grid; place-items: center; transition: all .16s var(--ease);
}
.deck-bar button:hover { background: rgba(255,255,255,.08); color: var(--text-1); }
.deck-bar button[disabled] { opacity: .3; pointer-events: none; }

.slide { aspect-ratio: 16/9; padding: 18px 20px; display: flex; flex-direction: column; background: linear-gradient(160deg, rgba(52,211,153,.05), transparent); }
.slide h4 { font-size: 15px; margin-bottom: 4px; }
.slide .kicker { font-size: 10.5px; color: var(--accent); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 10px; }
.slide ul { display: grid; gap: 7px; font-size: 12px; color: var(--text-2); }
.slide li { display: flex; gap: 8px; line-height: 1.55; }
.slide li::before { content: "▸"; color: var(--accent); flex: none; }
.slide .figure {
  margin-top: auto; height: 62px; border-radius: 9px; display: grid; place-items: center;
  border: 1px dashed rgba(255,255,255,.14); background: rgba(255,255,255,.02);
  font-size: 11.5px; color: var(--text-3);
}
.slide .board { font-family: "JetBrains Mono", monospace; color: var(--text-2); }

.thumbs { display: grid; grid-template-columns: repeat(6, 1fr); gap: 5px; margin-top: 10px; }
.thumbs button {
  aspect-ratio: 16/10; border-radius: 5px; border: 1px solid var(--line);
  background: rgba(255,255,255,.03); font-size: 9px; color: var(--text-3);
  transition: all .16s var(--ease);
}
.thumbs button:hover { border-color: var(--line-strong); }
.thumbs button.on { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }

/* 讲课视频：讲师 + 课件分屏 */
.lesson { display: grid; grid-template-columns: 1fr 1.35fr; gap: 10px; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 10px; background: var(--ink-900); }
.tutor-frame { aspect-ratio: 3/4; border-radius: 10px; position: relative; overflow: hidden; display: grid; place-items: end center; padding-bottom: 10px; }
.tutor-frame .nm { font-size: 11px; color: rgba(255,255,255,.85); text-shadow: 0 1px 4px rgba(0,0,0,.7); }
.tutor-frame .mouth {
  position: absolute; left: 50%; top: 52%; width: 16px; height: 4px; border-radius: 3px;
  background: rgba(255,255,255,.55); transform: translateX(-50%);
}
.tutor-frame.talking .mouth { animation: talk .28s steps(2) infinite; }
@keyframes talk { 0%,100% { height: 3px; } 50% { height: 8px; } }
.lesson-slide { border-radius: 10px; border: 1px solid var(--line); overflow: hidden; }

.tutors { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.tutor {
  display: flex; flex-direction: column; align-items: center; gap: 5px; width: 60px;
  font-size: 10.5px; line-height: 1.35; color: var(--text-3); transition: color .16s;
}
.tutor .face { width: 40px; height: 40px; border-radius: 50%; border: 2px solid transparent; transition: all .18s var(--ease); }
.tutor:hover { color: var(--text-1); }
.tutor.on { color: var(--accent); }
.tutor.on .face { border-color: var(--accent); transform: scale(1.06); }
.tutor.clone .face { display: grid; place-items: center; border: 1px dashed rgba(255,255,255,.2); background: rgba(255,255,255,.03); font-size: 15px; }

/* 练习题 */
.q { border: 1px solid var(--line); border-radius: var(--r); padding: 12px; margin-bottom: 10px; }
.q .qh { display: flex; gap: 8px; font-size: 12.5px; margin-bottom: 10px; line-height: 1.6; }
.q .qh b { color: var(--accent); font-family: "JetBrains Mono", monospace; flex: none; }
.q .opt {
  display: flex; align-items: center; gap: 9px; padding: 7px 10px; border-radius: 7px;
  font-size: 12px; color: var(--text-2); border: 1px solid transparent; margin-bottom: 5px;
}
.q .opt .k { width: 16px; height: 16px; border-radius: 4px; border: 1px solid var(--line-strong); display: grid; place-items: center; font-size: 9px; flex: none; }
.q .opt.right { border-color: rgba(52,211,153,.4); background: rgba(52,211,153,.08); color: var(--text-1); }
.q .opt.right .k { background: var(--ok); border-color: var(--ok); color: #0B0B10; font-weight: 700; }
.q .why { margin-top: 9px; padding-top: 9px; border-top: 1px solid var(--line); font-size: 11.5px; color: var(--text-3); line-height: 1.7; display: none; }
.q.open .why { display: block; }
.q .toggle-why { font-size: 11.5px; color: var(--accent); margin-top: 8px; }

/* 知识点图谱 */
.kmap { display: flex; flex-wrap: wrap; gap: 6px; }
.kmap span {
  height: 26px; padding: 0 11px; border-radius: 999px; font-size: 11.5px;
  display: inline-flex; align-items: center;
  border: 1px solid var(--line); background: rgba(255,255,255,.03); color: var(--text-2);
}
.kmap span.core { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }

@media (max-width: 768px) {
  .lesson { grid-template-columns: 1fr; }
  .thumbs { grid-template-columns: repeat(4, 1fr); }
}