/* 学生端。版式向即梦网页端的创作页靠：居中的输入框 + 一行工具条 + 作品瀑布流。
   教师看板仍用 style.css，两边互不影响。

   色调是「蓝墨水写在画纸上」：字是藏青不是纯黑，所有灰都往纸的蓝调里偏，
   底上一层很淡的点阵像速写本。按钮和积木是彩色的，底色如果还是冷灰，
   整页会像两套东西拼在一起——所以中性色也要和积木是一家的。 */

:root {
  --bg: #eef3fb;
  --dot: #d3ddef;
  --surface: #ffffff;
  --sunk: #eaf0fa;
  --line: #dbe4f2;
  --ink: #1d2848;
  --muted: #74809c;
  --accent: #2f6bff;
  --accent-edge: #1c49c4;
  --danger: #d1453b;
  --shadow: 0 1px 2px rgba(29, 52, 110, .05), 0 10px 30px rgba(29, 52, 110, .08);
  /* 回弹曲线：第二个控制点 y 远大于 1，松手时按钮会冲过原位一点再落回来 */
  --spring: cubic-bezier(.3, 1.9, .5, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #10152a;
    --dot: #1d2542;
    --surface: #182038;
    --sunk: #212a47;
    --line: #2b3656;
    --ink: #e8edf8;
    --muted: #8d98b4;
    --accent: #4f7fff;
    --accent-edge: #2548a8;
    --danger: #f07a70;
    --shadow: 0 8px 28px rgba(0, 0, 0, .4);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(var(--dot) 1.2px, transparent 1.3px) 0 0 / 22px 22px, var(--bg);
  color: var(--ink);
  font: 15px/1.6 "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; border: 0; background: none; padding: 0; }
button:disabled { cursor: not-allowed; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.hidden, [hidden] { display: none !important; }
.muted { color: var(--muted); }

/* ------------------------------------------------------------ 回弹按钮

   底下垫一条「厚边」（不占版面的 box-shadow），按下去整块沉到底、厚边收没；
   松手时走 --spring，冲过原位一点再落回来。像一颗实体按键：孩子一眼知道
   「这个能按」，按下去手上也有「按到了」的回应，不用再去看别处有没有变化。

   厚边的颜色各自设 --edge-color；厚度 --edge 默认 3px，小按钮 2px。 */

.go, .primary, .roster button, .bchip, .btab, .btn {
  --edge: 3px;
  --edge-color: color-mix(in srgb, var(--accent) 22%, var(--line));
  box-shadow: 0 var(--edge) 0 var(--edge-color);
  transition:
    transform .34s var(--spring),
    box-shadow .34s var(--spring),
    background-color .15s, border-color .15s, color .15s;
}
:is(.go, .primary, .roster button, .bchip, .btab, .btn):hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 calc(var(--edge) + 1px) 0 var(--edge-color);
}
:is(.go, .primary, .roster button, .bchip, .btab, .btn):active:not(:disabled) {
  transform: translateY(var(--edge));
  box-shadow: 0 0 0 var(--edge-color);
  transition-duration: .05s;
}
:is(.go, .primary, .bchip, .btn):disabled { box-shadow: none; }

/* 积木和标签一点就整块重画，按下去的那颗元素已经被换掉了，看不到松手回弹。
   所以由 blocks.js 给新画出来的那颗补一段同样的弹跳。 */
.boing { animation: boing .46s ease-out; }
@keyframes boing {
  0%   { transform: translateY(var(--edge)); box-shadow: 0 0 0 var(--edge-color); }
  45%  { transform: translateY(-3px); box-shadow: 0 calc(var(--edge) + 3px) 0 var(--edge-color); }
  75%  { transform: translateY(1px); box-shadow: 0 calc(var(--edge) - 1px) 0 var(--edge-color); }
  100% { transform: none; box-shadow: 0 var(--edge) 0 var(--edge-color); }
}

/* ------------------------------------------------------------ 顶栏 */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 24px;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; font-size: 22px; letter-spacing: .04em; }
/* 站标就是四块积木，颜色取主体 / 动作 / 场景 / 风格那四格 */
.mark { position: relative; width: 30px; height: 30px; flex: none; }
.mark::before {
  content: "";
  position: absolute; left: 0; top: 0;
  width: 13px; height: 13px; border-radius: 4px;
  background: hsl(214 85% 56%);
  box-shadow: 17px 0 0 hsl(150 65% 44%), 0 17px 0 hsl(32 92% 54%), 17px 17px 0 hsl(330 78% 58%);
}
.who {
  display: flex; align-items: center; gap: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 8px 6px 16px;
  font-size: 14px;
}
.quota { color: var(--accent); font-variant-numeric: tabular-nums; }
.quota.low { color: var(--danger); }
.whoname { font-weight: 600; }
.textbtn {
  color: var(--muted);
  font-size: 14px;
  padding: 4px 10px;
  border-radius: 999px;
}
.boardlink { text-decoration: none; color: var(--accent); }
.textbtn:hover { color: var(--ink); background: var(--sunk); }

.page { max-width: 1240px; margin: 0 auto; padding: 0 24px 96px; }

h1 {
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 700;
  letter-spacing: .01em;
  text-align: center;
  margin: 56px 0 32px;
}
h2 { font-size: 16px; font-weight: 600; margin: 0; }

.notice {
  max-width: 880px;
  margin: 14px auto 0;
  padding: 10px 16px;
  border-radius: 12px;
  color: var(--danger);
  background: color-mix(in srgb, var(--danger) 9%, transparent);
  font-size: 14px;
}

/* ------------------------------------------------------------ 登录 */

.login { max-width: 420px; margin: 0 auto; }
.login h1 { margin-top: 12vh; }
.step { display: flex; flex-direction: column; gap: 12px; }
.step label, .steptitle { font-size: 14px; color: var(--muted); margin: 0; }
.step input {
  height: 52px;
  padding: 0 18px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: 17px;
}
.step input:focus { outline: none; border-color: var(--ink); }
.classpick { display: flex; gap: 12px; }
.classpick select {
  flex: 1;
  height: 52px;
  padding: 0 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: 17px;
}
.classpick select:focus { outline: none; border-color: var(--ink); }
#classTitle { font-size: 18px; color: var(--ink); font-weight: 600; }
.primary {
  --edge: 4px;
  --edge-color: var(--accent-edge);
  height: 52px;
  border-radius: 14px;
  background: var(--accent);
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .08em;
  margin-bottom: var(--edge);
}
.primary:disabled { opacity: .5; }
.step .textbtn { align-self: center; }
#pinTitle { font-size: 18px; color: var(--ink); font-weight: 600; }
.pinhint {
  margin: 0;
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.6;
}
.steplabel { font-size: 14px; color: var(--muted); margin: 0; }
/* 一个数字一个格：四个格子摆在眼前，孩子对「4 位」的印象比一条长框深得多 */
.pinboxes { display: flex; gap: 14px; justify-content: center; }
.step .pinboxes input {
  width: 64px;
  height: 76px;
  padding: 0;
  border-radius: 18px;
  border: 2px solid var(--line);
  text-align: center;
  font-size: 34px;
  font-weight: 700;
  caret-color: transparent;
  transition: border-color .15s, transform .15s;
}
.step .pinboxes input:focus { border-color: var(--ink); transform: translateY(-2px); }
.step .pinboxes input.filled { border-color: var(--ink); }
@media (max-width: 380px) {
  .pinboxes { gap: 10px; }
  .step .pinboxes input { width: 56px; height: 66px; font-size: 28px; }
}
.roster {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 11px 8px;
}
.roster button {
  display: flex; flex-direction: column; align-items: center;
  padding: 12px 8px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
}
.roster button:hover { border-color: var(--accent); --edge-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }
.roster b { font-size: 16px; font-weight: 600; }
.roster span { font-size: 12px; color: var(--muted); }

/* 教师入口只是一条通往 /admin.html 的链接：管理员口令永远不进学生这个明文框
   （学生机连着投影，打在框里等于给全班看）。链接放在登录卡最下面，学生看见也无所谓。 */
.teachergate {
  margin: 28px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  text-align: center;
  font-size: 13px;
}
.teachergate a { color: var(--muted); text-decoration: none; }
.teachergate a:hover { color: var(--ink); }

/* ------------------------------------------------------------ 输入框 */

.composer {
  max-width: 880px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 20px 20px 14px;
}
.composer:focus-within { border-color: color-mix(in srgb, var(--ink) 22%, var(--line)); }

.inputrow { display: flex; gap: 14px; align-items: flex-start; }
.refs { display: flex; gap: 8px; }
.refs figure { position: relative; margin: 0; }
.refs img, .refadd {
  width: 64px; height: 80px;
  border-radius: 10px;
  object-fit: cover;
  display: block;
}
.refs .uploading img { opacity: .45; }
.refs figure button {
  position: absolute; top: -6px; right: -6px;
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--ink); color: var(--surface);
  font-size: 13px; line-height: 20px;
}
.refadd {
  flex: none;
  display: grid; place-items: center;
  background: var(--sunk);
  color: var(--muted);
  transform: rotate(-4deg);
  transition: transform .15s;
}
.refadd:hover { transform: rotate(0); color: var(--ink); }

/* 描色层和 textarea 叠在一起：字号、行高、内边距、折行规则必须一模一样，
   否则色块会和字错开。描色层只画底色，字是透明的，看到的字仍然是 textarea 自己的。 */
.promptbox { position: relative; flex: 1; min-width: 0; }
.promptpaint, textarea {
  font-size: 16px;
  line-height: 1.7;
  padding: 2px 0;
  white-space: pre-wrap;
  overflow-wrap: break-word;
}
.promptpaint {
  position: absolute; inset: 0;
  overflow: hidden;
  color: transparent;
  pointer-events: none;
}
.promptpaint mark {
  color: transparent;
  border-radius: 4px;
  background: hsl(var(--hue) 85% 58% / .17);
  box-shadow: inset 0 -2px 0 hsl(var(--hue) 70% 48% / .7);
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}
textarea {
  position: relative;
  display: block;
  width: 100%;
  min-height: 80px;
  max-height: 260px;
  resize: none;
  border: 0;
  background: transparent;
}
textarea:focus { outline: none; }
textarea::placeholder { color: var(--muted); }

.toolbar { display: flex; align-items: center; gap: 4px; margin-top: 12px; flex-wrap: wrap; }
.tool { position: relative; }
.pill {
  display: inline-flex; align-items: center; gap: 7px;
  height: 36px;
  padding: 0 12px;
  border-radius: 10px;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}
.pill:hover, .pill[aria-expanded="true"] { background: var(--sunk); }
#helperBtn {
  --edge: 2px;
  --edge-color: color-mix(in srgb, var(--accent) 35%, var(--line));
  margin-left: 4px;
  color: var(--accent);
  font-weight: 600;
  background: color-mix(in srgb, var(--accent) 9%, var(--surface));
  box-shadow: 0 var(--edge) 0 var(--edge-color);
  transition: transform .34s var(--spring), box-shadow .34s var(--spring), background-color .15s;
}
#helperBtn:hover { transform: translateY(-1px); box-shadow: 0 calc(var(--edge) + 1px) 0 var(--edge-color); }
#helperBtn:active { transform: translateY(var(--edge)); box-shadow: 0 0 0 var(--edge-color); transition-duration: .05s; }
#helperBtn[aria-expanded="true"] { background: color-mix(in srgb, var(--accent) 16%, var(--surface)); }
.shape { display: inline-block; border: 1.6px solid currentColor; border-radius: 3px; }

.send { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.cost { font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }
/* 全页最该被按的一颗：厚边最厚、带字。以前是一个黑圆箭头，小学生不一定认得出那是「生成」 */
.go {
  --edge: 4px;
  --edge-color: var(--accent-edge);
  display: inline-flex; align-items: center; gap: 6px;
  height: 44px;
  padding: 0 20px 0 16px;
  margin-bottom: var(--edge);
  border-radius: 14px;
  background: var(--accent); color: #fff;
  font-size: 16px; font-weight: 700; letter-spacing: .1em;
}
.go:disabled { background: var(--sunk); color: var(--muted); }
.go.busy svg { animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ------------------------------------------------------------ 弹出层 */

.pop {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 20;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 16px 48px rgba(29, 52, 110, .16);
  padding: 14px;
}
.menu { width: min(420px, 86vw); padding: 8px; }
.menu p.poplabel { padding: 4px 10px 6px; }
.menu button {
  display: flex; align-items: center; gap: 12px;
  width: 100%;
  text-align: left;
  padding: 10px;
  border-radius: 12px;
}
.menu button:hover { background: var(--sunk); }
.menu button.on { background: var(--sunk); }
.menu .ico {
  flex: none; width: 36px; height: 36px; border-radius: 10px;
  border: 1px solid var(--line);
  display: grid; place-items: center;
}
.menu b { display: block; font-weight: 500; font-size: 15px; }
.menu small { display: block; color: var(--muted); font-size: 12.5px; }
.menu .check { margin-left: auto; opacity: 0; }
.menu button.on .check { opacity: 1; }

.params { width: min(560px, 90vw); }
.poplabel { margin: 12px 0 8px; font-size: 13px; color: var(--muted); }
.poplabel:first-child { margin-top: 0; }
.seg {
  display: flex;
  gap: 2px;
  background: var(--sunk);
  border-radius: 12px;
  padding: 3px;
}
.seg button {
  flex: 1;
  min-height: 38px;
  border-radius: 9px;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}
.seg button:hover { color: var(--ink); background: color-mix(in srgb, var(--surface) 55%, transparent); }
.seg button.on { background: var(--surface); box-shadow: 0 1px 3px rgba(29, 52, 110, .1); }
.seg button:disabled { cursor: default; color: var(--ink); }
.seg button.locked,
.seg button.locked:hover { cursor: not-allowed; color: var(--muted); background: transparent; opacity: .45; }
.ratios button {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 0 6px;
  font-size: 12.5px;
}
.dims { display: flex; align-items: center; gap: 10px; color: var(--muted); }
.dims span {
  flex: 1;
  display: flex; justify-content: space-between;
  background: var(--sunk);
  border-radius: 12px;
  padding: 9px 16px;
}
.dims em { font-style: normal; }
.dims b { color: var(--ink); font-weight: 500; font-variant-numeric: tabular-nums; }
.dims small { font-size: 13px; }

/* ------------------------------------------------- 提示词积木（blocks.js）

   每格一个色相（--hue 由 JS 按 slot 设进来），标签上的圆点、选中的词块、词区顶上的
   色条都用同一个色——学生认的是「蓝色那格管画谁」。 */

.notice.warn {
  color: var(--ink);
  background: var(--sunk);
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
}

/* 面板：顶上一排标签 + 下面一格词。词区定高，超出在框里滚，页面不跟着长。 */
.blockpanel {
  max-width: 880px;
  margin: 12px auto 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
}

.bbar {
  display: flex;
  gap: 8px 16px;
  align-items: flex-start;
  padding: 12px 16px 10px;
  border-bottom: 1px solid var(--line);
}
.btabs { display: flex; flex-wrap: wrap; gap: 8px 18px; flex: 1; min-width: 0; }
.bsec { display: flex; flex-wrap: wrap; gap: 9px 6px; align-items: center; }
.bsec > i { font-size: 12px; color: var(--muted); font-style: normal; margin-right: 2px; }
/* 高度和一个标签一样、垂直居中：标签换成两行时，这俩仍然和第一行对齐 */
.bpanelacts { display: flex; gap: 2px; flex: none; height: 32px; align-items: center; }
.die { display: inline-block; }
.die.rolling { animation: roll .55s var(--spring); }
@keyframes roll { from { transform: rotate(-200deg) scale(.6); } to { transform: none; } }

.btab {
  --edge: 2px;
  --edge-color: hsl(var(--hue) 65% 55% / .25);
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  max-width: 13em;
  height: 32px;
  padding: 0 11px;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: 13.5px;
  line-height: 30px;
  white-space: nowrap;
}
.btab > b { font-weight: 600; }
.btab > b::before {
  content: "";
  display: inline-block;
  width: 7px; height: 7px;
  margin-right: 6px;
  border-radius: 50%;
  background: hsl(var(--hue) 70% 50%);
  vertical-align: 1px;
}
.btab > span { overflow: hidden; text-overflow: ellipsis; color: hsl(var(--hue) 60% 38%); }
.btab:hover { border-color: hsl(var(--hue) 70% 50%); }
.btab.filled {
  --edge-color: hsl(var(--hue) 70% 50% / .45);
  background: hsl(var(--hue) 70% 50% / .10);
  border-color: hsl(var(--hue) 70% 50% / .35);
}
.btab[aria-selected="true"] {
  --edge-color: hsl(var(--hue) 70% 42%);
  border-color: hsl(var(--hue) 70% 50%);
  box-shadow: inset 0 0 0 1px hsl(var(--hue) 70% 50%), 0 var(--edge) 0 var(--edge-color);
}

.bbody {
  height: 272px;
  overflow-y: auto;
  padding: 10px 16px 14px;
  border-top: 3px solid hsl(var(--hue) 70% 50% / .5);
  margin-top: -1px;
}
.bslothead { display: flex; align-items: baseline; gap: 10px; margin-bottom: 6px; }
.bslothead > b { font-size: 14px; }
.bslothead .textbtn { margin-left: auto; flex: none; }

.bgroup { display: flex; gap: 12px; align-items: baseline; padding: 4px 0; }
.bgroup > i { flex: none; width: 6.5em; font-size: 12.5px; color: var(--muted); font-style: normal; }
.bwords { display: flex; flex-wrap: wrap; gap: 10px 6px; }

.bchip {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 4px 12px;
  border-radius: 9px;
  border: 1px solid transparent;
  --edge-color: hsl(var(--hue) 65% 55% / .28);
  background: hsl(var(--hue) 80% 55% / .08);
  font-size: 14px;
  line-height: 1.35;
}
.bchip small { font-size: 11px; color: var(--muted); }
.bchip:hover { border-color: hsl(var(--hue) 70% 50%); --edge-color: hsl(var(--hue) 70% 50% / .45); }
/* 没选中的也带着淡色了，选中的要明显更「实」：底色加深、字换成同色系的深色 */
.bchip.on {
  --edge-color: hsl(var(--hue) 72% 38%);
  background: hsl(var(--hue) 85% 55% / .3);
  border-color: hsl(var(--hue) 70% 48%);
  color: hsl(var(--hue) 75% 26%);
  font-weight: 600;
}
@media (prefers-color-scheme: dark) {
  .bchip.on { color: hsl(var(--hue) 85% 82%); }
}
.bchip.on small { color: inherit; }
.bchip.small { --edge: 2px; font-size: 13px; padding: 2px 10px; }
.bchip.locked { opacity: .4; cursor: not-allowed; }

/* 修饰词：不是第八格，是母词块选中后展开的一层。 */
.bmods { margin-top: 8px; }
.bmodrow {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 5px 0 5px 10px;
  border-left: 2px dashed hsl(var(--hue) 70% 50% / .5);
}
.bmodrow > b { flex: none; font-size: 12.5px; color: var(--muted); font-weight: 400; }
.bmodwords { display: flex; flex-wrap: wrap; gap: 8px 6px; }

.btoast {
  max-width: 880px;
  margin: 8px auto 0;
  padding: 8px 16px;
  border-radius: 12px;
  background: var(--sunk);
  font-size: 13.5px;
  color: var(--muted);
}

@media (max-width: 640px) {
  /* 手机上：两个按钮挪到标签上面一行，每组词横向滑动，组名留在上面。 */
  .bbar { flex-direction: column-reverse; padding: 10px 12px; }
  .bpanelacts { align-self: flex-end; }
  .bbody { height: 300px; padding: 8px 12px 12px; }
  .bgroup { flex-direction: column; gap: 2px; }
  .bwords { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; padding: 1px 0 5px; }
  .bwords .bchip { white-space: nowrap; }
}

/* ------------------------------------------------------------ 作品 */

.works { margin-top: 64px; }
.sechead { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }

.empty {
  border: 1px dashed var(--line);
  border-radius: 18px;
  padding: 40px 20px;
  text-align: center;
  color: var(--muted);
}

.masonry { columns: 4 260px; column-gap: 12px; }
.shot {
  break-inside: avoid;
  margin: 0 0 12px;
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  background: var(--surface);
}
.shot img { display: block; width: 100%; height: auto; cursor: zoom-in; background: var(--sunk); }
.shot .meta {
  position: absolute; inset: auto 0 0 0;
  padding: 40px 14px 12px;
  background: linear-gradient(transparent, rgba(0, 0, 0, .62));
  color: #fff;
  font-size: 13px;
  opacity: 0;
  transition: opacity .18s;
  pointer-events: none;
}
.shot .meta p {
  margin: 0;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.shot .meta span { font-size: 12px; opacity: .75; }
.shotactions {
  position: absolute; top: 10px; right: 10px;
  display: flex; gap: 6px;
  opacity: 0;
  transition: opacity .18s;
}
.shotactions button, .shotactions a {
  height: 30px;
  padding: 0 11px;
  border-radius: 8px;
  background: rgba(255, 255, 255, .92);
  color: #15171c;
  font-size: 13px;
  text-decoration: none;
  display: inline-flex; align-items: center;
  backdrop-filter: blur(6px);
}
.shotactions button:hover, .shotactions a:hover { background: #fff; }
.shot:hover .meta, .shot:hover .shotactions, .shot:focus-within .meta, .shot:focus-within .shotactions { opacity: 1; }
@media (hover: none) {
  .shot .meta, .shotactions { opacity: 1; }
}

/* 我的作品：一次提交一行 */
.batches { display: flex; flex-direction: column; gap: 40px; }
.bhead {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;
  margin-bottom: 12px;
  font-size: 15px;
}
.bprompt { margin: 0; overflow-wrap: anywhere; }
.bmeta { display: inline-flex; color: var(--muted); font-size: 14px; font-variant-numeric: tabular-nums; }
.bmeta span + span::before {
  content: "";
  display: inline-block;
  width: 1px; height: 11px;
  margin: 0 9px;
  background: var(--line);
  vertical-align: -1px;
}
.bimgs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 3px;
  align-items: start;
  border-radius: 12px;
  overflow: hidden;
}
.cell { margin: 0; position: relative; background: var(--sunk); }
.shotcell img { display: block; width: 100%; height: auto; cursor: zoom-in; }
.shotcell .dl {
  position: absolute; right: 8px; bottom: 8px;
  width: 32px; height: 32px; border-radius: 8px;
  display: grid; place-items: center;
  background: rgba(255, 255, 255, .92); color: #15171c;
  opacity: 0; transition: opacity .15s;
}
.shotcell:hover .dl, .dl:focus-visible { opacity: 1; }
@media (hover: none) { .shotcell .dl { opacity: 1; } }
.cell.failed {
  grid-column: 1 / -1;
  min-height: 120px;
  display: grid; place-items: center;
  padding: 20px;
  text-align: center;
  font-size: 14px;
  color: var(--danger);
  background: color-mix(in srgb, var(--danger) 6%, var(--sunk));
}
.bactions { display: flex; gap: 8px; margin-top: 12px; padding-bottom: 2px; }
.btn {
  --edge: 2px;
  display: inline-flex; align-items: center; gap: 6px;
  height: 38px; padding: 0 14px;
  border-radius: 10px;
  background: var(--sunk);
  font-size: 14px;
}
.btn:hover { background: color-mix(in srgb, var(--accent) 10%, var(--sunk)); }
.btn.icon { width: 38px; padding: 0; justify-content: center; }
.more { position: relative; }
.moremenu { top: 50%; left: calc(100% + 8px); transform: translateY(-50%); padding: 6px; white-space: nowrap; }
.moremenu button {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 14px; border-radius: 10px; font-size: 14px;
}
.moremenu button:hover { background: var(--sunk); color: var(--danger); }

/* 生成中的占位格。一个班一起点时要等一分多钟，这是学生盯得最久的地方：
   第一格写清楚「前面还有几位」和一条会往前走的进度条，其余格只留流光。
   流光用积木的几种颜色，和输入框里的色块是一家的。 */
.pending {
  position: relative;
  overflow: hidden;
  display: grid; place-items: center;
  padding: 16px;
  text-align: center;
  color: var(--muted);
  background: var(--sunk);
}
.pending::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(110deg,
    transparent 22%,
    hsl(214 85% 62% / .16) 36%, hsl(330 80% 66% / .16) 50%, hsl(45 92% 58% / .2) 64%,
    transparent 78%) 0 0 / 260% 100%;
  animation: sweep 2.6s linear infinite;
}
@keyframes sweep { from { background-position: 130% 0; } to { background-position: -130% 0; } }

.wait {
  position: relative;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  width: min(100%, 220px);
  font-size: 13.5px;
}
.waitbig {
  font-size: 44px; line-height: 1; font-weight: 800;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.waitbig:empty { display: none; }
.waitbig.tick { animation: tick .4s var(--spring); }
@keyframes tick { from { transform: translateY(6px) scale(.85); opacity: .4; } }
.what { color: var(--ink); font-weight: 600; }
.wbar {
  width: 100%; height: 6px; margin-top: 6px;
  border-radius: 99px;
  background: color-mix(in srgb, var(--ink) 8%, transparent);
  overflow: hidden;
}
.wbar i {
  display: block; height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, hsl(214 85% 58%), hsl(330 78% 60%));
  transform-origin: left;
  transform: scaleX(var(--p, .04));
  transition: transform 1.5s linear;
}
.eta { font-size: 12.5px; }
.eta:empty { display: none; }

/* 出图那一刻：从模糊里浮出来，几张依次出现。整页只有这一处不是由点击触发的动效 */
.shotcell.fresh img { animation: reveal .7s cubic-bezier(.2, .8, .2, 1) both; animation-delay: calc(var(--i, 0) * 110ms); }
@keyframes reveal {
  from { opacity: 0; transform: scale(.96); filter: blur(12px); }
  to { opacity: 1; transform: none; filter: none; }
}

/* ------------------------------------------------------------ 大图 */

.lightbox {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(10, 11, 14, .92);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px;
  padding: 28px 24px;
}
.lbstage {
  position: relative;
  display: flex; align-items: center; justify-content: center; gap: 16px;
  width: 100%;
  min-height: 0;
}
/* 固定撑满框：先顶上的缩略图只有 480 宽，不撑满的话换成预览图时画面会猛地跳大 */
.lightbox img { width: calc(100% - 140px); height: 72vh; object-fit: contain; }
.imgloading {
  position: absolute; left: 50%; bottom: 10px; transform: translateX(-50%);
  padding: 4px 12px; border-radius: 999px;
  background: rgba(0, 0, 0, .55); color: rgba(255, 255, 255, .85);
  font-size: 13px; pointer-events: none;
}
.lbnav {
  flex: none;
  width: 54px; height: 54px; border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(255, 255, 255, .12); color: #fff;
}
.lbnav:hover:not(:disabled) { background: rgba(255, 255, 255, .24); }
.lbnav:disabled { opacity: .25; }
.lbbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: center; }
.lbcount { color: rgba(255, 255, 255, .6); font-size: 14px; font-variant-numeric: tabular-nums; min-width: 3.5em; text-align: center; }
.lbtool {
  display: inline-flex; align-items: center; gap: 7px;
  height: 40px; padding: 0 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .12); color: #fff;
  font-size: 14px;
}
.lbtool:hover { background: rgba(255, 255, 255, .22); }
.lbtool[aria-pressed="true"] { background: #fff; color: #15171c; }
.lbinfo {
  margin: 0;
  max-width: min(760px, 100%);
  padding: 10px 18px;
  border-radius: 14px;
  background: rgba(255, 255, 255, .1);
  color: #fff;
  text-align: center;
  font-size: 15px;
  line-height: 1.7;
  overflow-wrap: anywhere;
  max-height: 18vh;
  overflow-y: auto;
}
.lbwho { font-weight: 600; }
.lbclose {
  position: absolute; top: 18px; right: 18px;
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(255, 255, 255, .12); color: #fff;
}
.lbclose:hover { background: rgba(255, 255, 255, .22); }

@media (max-width: 640px) {
  .topbar { padding: 12px 16px; }
  .page { padding: 0 16px 72px; }
  h1 { margin: 28px 0 20px; }
  .whoname { display: none; }
  .composer { padding: 14px; border-radius: 20px; }
  .refs img, .refadd { width: 52px; height: 64px; }
  .cost { display: none; }
  .ratios { display: grid; grid-template-columns: repeat(4, 1fr); }
  .params { left: -60px; }
  .masonry { columns: 2; column-gap: 8px; }
  .bimgs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .moremenu { left: auto; right: 0; top: auto; bottom: calc(100% + 6px); transform: none; }
  .shot { margin-bottom: 8px; }
  /* 窄屏：翻页按钮压到图片两侧上面，图片占满宽度 */
  .lightbox { padding: 64px 12px 20px; }
  .lightbox img { width: 100%; height: 62vh; }
  .lbnav { position: absolute; top: 50%; transform: translateY(-50%); width: 44px; height: 44px; background: rgba(0, 0, 0, .45); }
  #lbPrev { left: 4px; }
  #lbNext { right: 4px; }
}

@media (prefers-reduced-motion: reduce) {
  .pending::before, .go.busy svg, .boing, .die.rolling, .waitbig.tick, .shotcell.fresh img { animation: none; }
  .refadd, .shot .meta, .shotactions, .wbar i { transition: none; }
  :is(.go, .primary, .roster button, .bchip, .btab, .btn, #helperBtn) { transition: background-color .15s, border-color .15s; }
}

/* 标题右边的校名：楷体细笔画，像落款 */
.brand .school {
  align-self: flex-end;
  margin-bottom: 2px;
  font-family: "KaiTi", "STKaiti", "Kaiti SC", "楷体", serif;
  font-size: 17px;
  font-weight: 400;
  letter-spacing: .1em;
  color: color-mix(in srgb, var(--ink) 65%, transparent);
}
@media (max-width: 640px) {
  .brand { font-size: 18px; }
  .brand .school { font-size: 13px; }
  .mark { width: 24px; height: 24px; border-radius: 7px; }
}