/* 华栋字能 · 作业点评（家长端）样式 V3.0
   目标：与 AI 测评页（/assess.html）完全同一套视觉语言
   —— 宣纸底 + 墨色字 + 朱砂点缀、圆角卡片、芯片选择、SVG 环形成绩、左侧朱砂标线小标题
   本文件自包含（自带品牌令牌），官网与工作台两端共用，不依赖 style.css / theme.css
*/

:root {
  --ink: #201e1a;
  --ink-2: #3d3a34;
  --ink-3: #6e6a62;
  --paper: #fbf8f1;
  --paper-2: #f6f1e5;
  --line: #d8d3c8;
  --cinnabar: #b5342b;
  --cinnabar-d: #8f2620;
  --jade: #2f5d62;
  --pine: #4e7a5a;
  --rattan: #d9a441;
  --shadow: 0 2px 8px rgba(32, 30, 26, .06), 0 12px 32px rgba(32, 30, 26, .06);
  /* 兼容 chrome.js 工作台页脚用到的通用变量 */
  --mut: #6e6a62;
  --acc: #b5342b;
  --on: #fbf8f1;
}

/* ---------------- chrome.js · 工作台页头/页脚（wb 模式） ---------------- */
.rb-page > #siteHeader > header {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 18px 20px; border-bottom: 1px solid var(--line); background: var(--paper);
}
.rb-page > #siteHeader .logo {
  width: 40px; height: 40px; border-radius: 10px; flex: none;
  background: var(--ink); color: var(--paper); display: grid; place-items: center;
  font-size: 20px; font-weight: 700; font-family: "Songti SC", "STSong", serif;
}
.rb-page > #siteHeader h1 { margin: 0; font-size: 18px; letter-spacing: .3px; line-height: 1.4; }
.rb-page > #siteHeader small { display: block; color: var(--ink-3); font-size: 12.5px; margin-top: 2px; }
.rb-page .wb-head-links { font-size: 13.5px; }
.rb-page .wb-head-links a { color: var(--ink-3); }
.rb-page .wb-head-links a:hover { color: var(--cinnabar); }
.rb-page .wb-head-links a.on { color: var(--cinnabar); font-weight: 600; }
@media (max-width: 640px) { .rb-page .wb-head-links { width: 100%; margin-left: 0 !important; margin-top: 4px; } }
.rb-page > #siteFooter .wb-footer {
  margin-top: 30px; padding: 18px 16px 26px; border-top: 1px solid var(--line);
  color: var(--ink-3); font-size: 12.5px; line-height: 1.9; text-align: center;
}
.rb-page > #siteFooter .wb-footer a { color: var(--ink-3); }
.rb-page > #siteFooter .wb-footer a:hover { color: var(--cinnabar); }

.rb-page {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.7 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
        "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}
.rb-page * { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
.rb-page a { color: var(--cinnabar); text-decoration: none; }
.rb-page img { max-width: 100%; display: block; }
.rb-page .hide { display: none !important; }

.rb .wrap { max-width: 840px; margin: 0 auto; padding: 0 20px; }

/* ---------------- 头部 ---------------- */
.rb-hero {
  padding: 42px 0 58px;
  background:
    radial-gradient(900px 380px at 50% -8%, rgba(181, 52, 43, .07), transparent 70%),
    linear-gradient(180deg, #fbf8f1, var(--paper));
}
.rb-head { text-align: center; margin-bottom: 28px; }
.rb-head .eyebrow {
  display: inline-block; font-size: 13px; letter-spacing: 2px;
  color: var(--cinnabar); font-weight: 600; margin-bottom: 12px;
}
.rb-head h1 { font-size: 34px; margin: 0 0 14px; letter-spacing: .5px; line-height: 1.35; }
.rb-head .sub { color: var(--ink-2); font-size: 16px; margin: 0; line-height: 1.85; }
.rb-head .sub b { color: var(--cinnabar); font-weight: 600; }
@media (max-width: 720px) {
  .rb-hero { padding: 18px 0 24px; }
  .rb-head { margin-bottom: 18px; }
  .rb-head h1 { font-size: 23px; margin-bottom: 8px; }
  .rb-head .sub { font-size: 14.5px; line-height: 1.7; }
  .rb-head .sub br.pc { display: none; }
}

/* ---------------- 主卡片 ---------------- */
.rb-stage {
  max-width: 720px; margin: 0 auto;
  background: var(--paper-2); border: 1px solid var(--line); border-radius: 20px;
  box-shadow: var(--shadow); padding: 28px;
}
@media (max-width: 720px) { .rb-stage { padding: 20px 16px; border-radius: 16px; } }

/* 分段切换 */
.rb-tabs {
  display: flex; gap: 6px; padding: 5px; margin-bottom: 22px;
  background: #efe7d6; border: 1px solid var(--line); border-radius: 999px;
}
.rb-tabs button {
  flex: 1; height: 42px; border: 0; border-radius: 999px; background: transparent;
  color: var(--ink-3); font: inherit; font-size: 15px; font-weight: 600;
  cursor: pointer; transition: .18s;
}
.rb-tabs button:hover { color: var(--ink-2); }
.rb-tabs button.on {
  background: var(--paper); color: var(--cinnabar);
  box-shadow: 0 2px 8px rgba(32, 30, 26, .08);
}

/* 流程条 */
.rb-flow { display: flex; align-items: center; flex-wrap: wrap; list-style: none; margin: 0 0 22px; padding: 0; gap: 2px; }
.rb-flow li { display: flex; align-items: center; gap: 7px; font-size: 12.5px; color: var(--ink-3); white-space: nowrap; }
.rb-flow li i {
  font-style: normal; width: 20px; height: 20px; border-radius: 50%; flex: none;
  display: grid; place-items: center; font-size: 11.5px; font-weight: 700;
  background: var(--paper); border: 1.5px solid var(--line); color: var(--ink-3);
}
.rb-flow li.on { color: var(--ink); }
.rb-flow li.on i { background: var(--cinnabar); border-color: var(--cinnabar); color: #fbf8f1; }
.rb-flow li::after { content: ""; width: 14px; height: 1.5px; background: var(--line); margin: 0 4px; border-radius: 2px; }
.rb-flow li:last-child::after { display: none; }

/* ---------------- 表单 ---------------- */
.rb-field { margin-bottom: 16px; }
.rb-field:last-of-type { margin-bottom: 0; }
.rb-lb {
  display: flex; align-items: baseline; gap: 6px; margin-bottom: 8px;
  font-size: 14px; font-weight: 600; color: var(--ink-2);
}
.rb-lb em { font-style: normal; color: var(--cinnabar); }
.rb-lb .hint { font-weight: 400; font-size: 12.5px; color: var(--ink-3); margin-left: auto; }

.rb-ipt {
  width: 100%; padding: 13px 15px; font: inherit; font-size: 16px;
  border: 1.5px solid var(--line); border-radius: 11px;
  background: var(--paper); color: var(--ink);
  transition: .16s border-color, .16s box-shadow;
  -webkit-appearance: none; -webkit-appearance:none;appearance:none;
}
.rb-ipt::placeholder { color: #9b948a; }
.rb-ipt:focus { outline: 0; border-color: var(--cinnabar); box-shadow: 0 0 0 3px rgba(181, 52, 43, .12); }
.rb-ta { min-height: 78px; line-height: 1.7; resize: vertical; }
.rb-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 620px) { .rb-row { grid-template-columns: 1fr; gap: 0; } }

/* 芯片 */
.rb-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.rb-chip {
  padding: 8px 15px; border-radius: 999px; border: 1.5px solid var(--line);
  background: var(--paper); color: var(--ink-2); font: inherit; font-size: 14px;
  cursor: pointer; transition: .15s;
}
.rb-chip:hover { border-color: #c0b8a8; }
.rb-chip.on {
  border-color: var(--cinnabar); background: rgba(181, 52, 43, .06);
  color: var(--cinnabar); font-weight: 600;
}
.rb-chip.sm { padding: 6px 13px; font-size: 13px; }
.rb-chips + .rb-ipt { margin-top: 12px; }

/* 次级区：学生信息（视觉降级：虚线浅底、小字号、灰标签） */
.rb-sub {
  margin: 22px 0 4px; padding: 18px 18px 6px;
  border: 1px dashed var(--line); border-radius: 14px;
  background: rgba(239, 231, 214, .38);
}
.rb-sub-h { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.rb-sub-h b { font-size: 13.5px; font-weight: 600; color: var(--ink-2); letter-spacing: .3px; }
.rb-sub-h span { font-size: 12.5px; color: var(--ink-3); line-height: 1.6; }
.rb-sub .rb-field { margin-bottom: 14px; }
.rb-sub .rb-lb { font-size: 13px; font-weight: 500; color: var(--ink-3); margin-bottom: 7px; }
.rb-sub .rb-lb em { color: #b8785f; }
.rb-sub .rb-ipt { padding: 11px 13px; font-size: 15px; border-width: 1px; }
@media (max-width: 620px) { .rb-sub { padding: 16px 14px 4px; } }

/* 上传 */
.rb-drop {
  position: relative; border: 2px dashed var(--line); border-radius: 16px;
  padding: 30px 20px; text-align: center; background: var(--paper);
  cursor: pointer; transition: .18s border-color, .18s background;
}
.rb-drop:hover { border-color: var(--cinnabar); }
.rb-drop .ic { color: #cdc5b6; margin: 0 auto 10px; transition: .18s; }
.rb-drop:hover .ic { color: var(--cinnabar); }
.rb-drop b { display: block; font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.rb-drop span { display: block; font-size: 13px; color: var(--ink-3); line-height: 1.7; }
.rb-drop.has { padding: 8px; border-style: solid; border-color: var(--line); }
.rb-drop.has .empty { display: none; }
.rb-drop img { width: 100%; max-height: 360px; object-fit: contain; border-radius: 12px; background: var(--paper-2); }
.rb-retake {
  position: absolute; right: 14px; top: 14px; height: 32px; padding: 0 13px;
  border-radius: 999px; border: 0; background: rgba(32, 30, 26, .62); color: #fff;
  font-size: 12.5px; cursor: pointer; -webkit-backdrop-filter: blur(6px); -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.rb-retake:hover { background: rgba(32, 30, 26, .8); }

/* 同意 */
.rb-consent {
  display: flex; gap: 10px; align-items: flex-start; margin: 16px 0 4px;
  font-size: 12.5px; line-height: 1.75; color: var(--ink-3); cursor: pointer;
}
.rb-consent input { flex: none; width: 17px; height: 17px; margin: 2px 0 0; accent-color: var(--cinnabar); cursor: pointer; }
.rb-consent a { color: var(--cinnabar); text-decoration: underline; }

/* 按钮 */
.rb-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 52px; padding: 0 26px; border: 0; border-radius: 999px;
  background: var(--cinnabar); color: #fbf8f1; font: inherit; font-size: 16.5px; font-weight: 600;
  cursor: pointer; box-shadow: 0 6px 18px rgba(181, 52, 43, .28);
  transition: .18s background, .18s transform, .18s box-shadow;
}
.rb-btn:hover { background: var(--cinnabar-d); }
.rb-btn:active { transform: translateY(1px) scale(.995); }
.rb-btn[disabled] { opacity: .6; cursor: not-allowed; box-shadow: none; }
.rb-btn.ghost { background: transparent; border: 1.5px solid var(--line); color: var(--ink); box-shadow: none; }
.rb-btn.ghost:hover { border-color: var(--ink-3); background: transparent; }
.rb-btn.block { width: 100%; }
.rb-btn.sm { height: 44px; padding: 0 20px; font-size: 15px; }
.rb-spin {
  width: 16px; height: 16px; border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, .45); border-top-color: #fff;
  animation: rbsp .7s linear infinite;
}
@keyframes rbsp { to { transform: rotate(360deg); } }

/* ---------------- 下拉多选 / 原生下拉（手机优先：点开才占屏） ---------------- */
.rb-sel { position: relative; }
.rb-sel-btn {
  width: 100%; min-height: 52px; padding: 0 46px 0 15px;
  display: flex; align-items: center; gap: 8px;
  border: 1.5px solid var(--line); border-radius: 12px; background: #fff;
  font-size: 14.5px; color: var(--ink-3); text-align: left; cursor: pointer;
  transition: border-color .18s, box-shadow .18s;
}
.rb-sel-btn:active { border-color: var(--cinnabar); }
.rb-sel-btn.has { color: var(--ink); }
.rb-sel-btn.has #focusTxt { font-weight: 500; }
.rb-caret {
  position: absolute; right: 16px; top: 50%; margin-top: -4px;
  width: 8px; height: 8px; border-right: 1.6px solid var(--ink-3); border-bottom: 1.6px solid var(--ink-3);
  transform: rotate(45deg); pointer-events: none; transition: transform .2s;
}
.rb-sel-btn[aria-expanded="true"] .rb-caret { transform: rotate(-135deg); margin-top: -1px; }
.rb-sel-pop {
  position: absolute; z-index: 30; left: 0; right: 0; top: calc(100% + 6px);
  padding: 6px; border: 1px solid var(--line); border-radius: 14px; background: var(--paper);
  box-shadow: 0 10px 26px rgba(32, 30, 26, .12);
}
.rb-opt {
  display: flex; align-items: flex-start; gap: 11px; padding: 11px 10px;
  border-radius: 10px; cursor: pointer; font-size: 14.5px; color: var(--ink);
}
.rb-opt:active { background: var(--paper-2); }
.rb-opt input { flex: none; width: 18px; height: 18px; margin: 1px 0 0; accent-color: var(--cinnabar); }
.rb-opt span { display: block; line-height: 1.45; }
.rb-opt em { display: block; font-style: normal; font-size: 12px; color: var(--ink-3); margin-top: 2px; }
.rb-opt input:checked + span { color: var(--cinnabar); font-weight: 600; }
.rb-sel-acts { display: flex; gap: 8px; margin-top: 6px; padding-top: 8px; border-top: 1px dashed var(--line); }
.rb-sel-acts .rb-btn { flex: 1; height: 42px; }
.rb-select {
  -webkit-appearance: none; -webkit-appearance:none;appearance:none; cursor: pointer; padding-right: 40px;
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%236e6a62' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 15px center;
}
.rb-more-b .rb-row { margin-top: 14px; }
.rb-more-b .rb-sel + .rb-ipt { margin-top: 12px; }

/* ---------------- AI 综合点评卡片（提交即出 · 老师据此终评） ---------------- */
.rb-aicard {
  margin-top: 14px; padding: 16px 16px 12px; border: 1px solid rgba(181, 52, 43, .26);
  border-left: 3px solid var(--cinnabar); border-radius: 12px;
  background: linear-gradient(180deg, #fdfbf6 0%, #f8f3e8 100%);
}
.rb-aihd { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.rb-aitag {
  display: inline-flex; align-items: center; height: 22px; padding: 0 9px; border-radius: 999px;
  background: var(--cinnabar); color: #fbf8f1; font-size: 11.5px; letter-spacing: .3px; white-space: nowrap;
}
.rb-aimeta { font-size: 12px; color: var(--ink-3); }
.rb-aisum { margin: 0 0 12px; font-size: 15px; line-height: 1.85; color: var(--ink); font-weight: 600; }
.rb-aiblk { margin: 0 0 12px; }
.rb-aiblk h4 { margin: 0 0 6px; font-size: 13px; font-weight: 600; color: var(--ink-2); letter-spacing: .3px; }
.rb-aiblk h4::before { content: ""; display: inline-block; width: 3px; height: 11px; margin-right: 7px; border-radius: 2px; background: var(--pine); vertical-align: -1px; }
.rb-aiblk.bad h4::before { background: var(--cinnabar); }
.rb-aiblk ul { list-style: none; margin: 0; padding: 0; }
.rb-aiblk li { position: relative; padding-left: 14px; margin-bottom: 5px; font-size: 13.5px; line-height: 1.85; color: var(--ink-2); }
.rb-aiblk li::before { content: "·"; position: absolute; left: 2px; color: var(--ink-3); }
.rb-aiblk p { margin: 0; font-size: 13.5px; line-height: 1.85; color: var(--ink-2); }
/* 「做得好的地方」下的维度小标：卷面/书面、逐字 */
.rb-aisub { margin: 10px 0 4px; font-size: 12px; color: var(--ink-3); letter-spacing: .3px; }
.rb-aisub::before { content: ""; display: inline-block; width: 8px; height: 1px; margin-right: 6px; background: currentColor; opacity: .55; vertical-align: 3px; }
.rb-aiblk > .rb-aisub:first-of-type { margin-top: 2px; }
.rb-aifoot { margin: 10px 0 0; font-size: 12.5px; line-height: 1.7; color: var(--ink-3); }
.rb-aiwait { display: flex; align-items: center; gap: 9px; margin: 0; font-size: 14px; color: var(--ink-2); }
.rb-aiwait .rb-spin { border-color: rgba(181, 52, 43, .25); border-top-color: var(--cinnabar); }
.rb-aicard.wait { border-left-color: var(--line); }
.rb-imgfail { margin: 12px 0 0; font-size: 12.5px; color: var(--ink-3); }

/* 提示 */
.rb-msg { display: flex; gap: 8px; font-size: 13.5px; line-height: 1.7; border-radius: 12px; padding: 11px 14px; margin-top: 12px; }
.rb-msg:empty { display: none !important; }
.rb-msg.err { background: rgba(143, 38, 32, .07); border: 1px solid rgba(143, 38, 32, .28); color: #8f2620; }
.rb-msg.ok { background: rgba(78, 122, 90, .1); border: 1px solid rgba(78, 122, 90, .35); color: #3d6b4c; }

/* ---------------- 成功态 ---------------- */
.rb-done { text-align: center; padding: 14px 4px 4px; }
.rb-done .tick {
  width: 62px; height: 62px; border-radius: 50%; margin: 0 auto 16px;
  display: grid; place-items: center; color: #3d6b4c;
  background: rgba(78, 122, 90, .1); border: 1.5px solid rgba(78, 122, 90, .4);
}
.rb-done h3 { margin: 0 0 8px; font-size: 21px; letter-spacing: .3px; }
.rb-done p { margin: 0 0 16px; font-size: 14px; color: var(--ink-3); line-height: 1.85; }
.rb-no {
  display: inline-block; margin-bottom: 20px; padding: 6px 14px; border-radius: 999px;
  background: var(--paper); border: 1px solid var(--line); font-size: 13px; font-weight: 600;
}
.rb-done .acts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; max-width: 420px; margin: 0 auto; }
@media (max-width: 420px) { .rb-done .acts { grid-template-columns: 1fr; } }

/* ---------------- 查询 ---------------- */
.rb-qrow { display: flex; gap: 10px; }
.rb-qrow .rb-ipt { flex: 1; }
@media (max-width: 520px) { .rb-qrow { flex-direction: column; } .rb-qrow .rb-btn { width: 100%; } }

.rb-empty { text-align: center; padding: 30px 10px; color: var(--ink-3); }
.rb-empty svg { margin: 0 auto 12px; opacity: .5; }
.rb-empty b { display: block; color: var(--ink); font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.rb-empty span { font-size: 13px; line-height: 1.75; }

/* ---------------- 结果卡 ---------------- */
.rb-hw {
  background: var(--paper); border: 1px solid var(--line); border-radius: 16px;
  padding: 18px; margin-top: 14px;
  animation: rbrise .3s cubic-bezier(.22, .8, .3, 1) both;
}
@keyframes rbrise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.rb-hw-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.rb-hw-top h3 { margin: 7px 0 4px; font-size: 17px; letter-spacing: .2px; }
.rb-hw-meta { margin: 0; font-size: 12.5px; color: var(--ink-3); }
.rb-tag {
  display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: .4px;
  padding: 3px 11px; border-radius: 999px;
}
.rb-tag.wait { background: rgba(217, 164, 65, .16); border: 1px solid rgba(217, 164, 65, .45); color: #8a6520; }
.rb-tag.done { background: rgba(78, 122, 90, .1); border: 1px solid rgba(78, 122, 90, .35); color: #3d6b4c; }
/* r151：已有 AI 初评、等老师终评 —— 用「朱红＋金」的中间态，别让家长以为只是干等 */
.rb-tag.ai { background: rgba(181, 52, 43, .08); border: 1px solid rgba(217, 164, 65, .5); color: #8a6520; }

.rb-score { display: flex; align-items: center; gap: 22px; margin-top: 16px; padding-top: 16px; border-top: 1px dashed var(--line); }
.rb-ring { position: relative; flex: none; width: 104px; height: 104px; }
.rb-ring svg { display: block; transform: rotate(-90deg); }
.rb-ring .num { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; }
.rb-ring .num b { font-size: 29px; line-height: 1; font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.rb-ring .num span { display: block; font-size: 11px; color: var(--ink-3); margin-top: 4px; }
.rb-score-side { flex: 1; min-width: 0; }
.rb-grade {
  display: inline-block; font-size: 12.5px; font-weight: 600; letter-spacing: .6px;
  color: var(--cinnabar); background: rgba(181, 52, 43, .08);
  padding: 4px 12px; border-radius: 999px; margin-bottom: 8px;
}
.rb-say { margin: 0; font-size: 14px; line-height: 1.85; color: var(--ink-2); }
@media (max-width: 520px) {
  .rb-score { gap: 16px; }
  .rb-ring { width: 88px; height: 88px; }
  .rb-ring .num b { font-size: 24px; }
}

.rb-block { margin-top: 16px; }
.rb-block h4 {
  margin: 0 0 10px; font-size: 15px; font-weight: 700;
  padding-left: 10px; border-left: 3px solid var(--cinnabar); line-height: 1.4;
}
.rb-body { font-size: 14.5px; line-height: 1.95; color: var(--ink-2); white-space: pre-wrap; }

.rb-waitbox {
  margin-top: 14px; padding: 13px 15px; border-radius: 12px; font-size: 13.5px; line-height: 1.8;
  background: rgba(217, 164, 65, .1); border: 1px solid rgba(217, 164, 65, .35); color: var(--ink-2);
}

.rb-photo { margin-top: 14px; border-top: 1px solid #e6dfd0; padding-top: 12px; }
.rb-photo summary {
  cursor: pointer; font-size: 13.5px; color: var(--ink-3); list-style: none;
  display: flex; align-items: center; gap: 6px;
}
.rb-photo summary::-webkit-details-marker { display: none; }
.rb-photo summary::after { content: "›"; margin-left: auto; font-size: 18px; line-height: 1; transition: transform .2s; }
.rb-photo[open] summary::after { transform: rotate(90deg); }
.rb-photo img { margin-top: 12px; border: 1px solid var(--line); border-radius: 12px; width: 100%; }

/* ---------------- 工具纯净：说明性内容一律折叠后置 ---------------- */
.rb-foot { padding: 0 0 46px; }
.rb-foot .wrap { max-width: 840px; margin: 0 auto; padding: 0 20px; }

/* 折叠块：主区里的「补充说明」 */
.rb-more { margin-bottom: 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--paper); }
.rb-more > summary {
  cursor: pointer; list-style: none; padding: 12px 15px;
  display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap;
}
.rb-more > summary::-webkit-details-marker { display: none; }
.rb-more > summary b { font-size: 13.5px; color: var(--ink-2); font-weight: 600; }
.rb-more > summary span { font-size: 12.5px; color: var(--ink-3); }
.rb-more > summary::after {
  content: "＋"; margin-left: auto; color: var(--ink-3); font-size: 16px; line-height: 1;
}
.rb-more[open] > summary::after { content: "－"; }
.rb-more-b { padding: 4px 15px 16px; border-top: 1px dashed var(--line); margin-top: 2px; }
.rb-more-b > .rb-field:first-child { margin-top: 14px; }

/* 注：角标式说明，点了才露出 */
.rb-note { border-top: 1px solid var(--line); margin-top: 12px; }
.rb-note.rt { border: 1px solid var(--line); border-radius: 12px; margin-top: 14px; overflow: hidden; }
.rb-note > summary {
  cursor: pointer; list-style: none; padding: 10px 2px;
  font-size: 13px; color: var(--ink-3);
  display: flex; align-items: baseline; gap: 8px;
}
.rb-note.rt > summary { padding: 12px 15px; background: var(--paper-2); }
.rb-note > summary::-webkit-details-marker { display: none; }
.rb-note > summary span { font-weight: 400; font-size: 12px; opacity: .8; }
.rb-note > summary::before { content: "ⓘ"; font-size: 13px; color: var(--cinnabar); }
.rb-note > summary::after { content: "›"; margin-left: auto; font-size: 16px; line-height: 1; transition: transform .2s; }
.rb-note[open] > summary::after { transform: rotate(90deg); }
.rb-note.xs > summary { padding: 8px 2px; font-size: 12.5px; }
.rb-note-b { padding: 2px 2px 12px; }
.rb-note.rt .rb-note-b { padding: 12px 15px 14px; }
.rb-note-b p { margin: 0 0 8px; font-size: 13.5px; line-height: 1.9; color: var(--ink-3); }
.rb-note-b p:last-child { margin-bottom: 0; }
.rb-note-b b { color: var(--ink-2); font-weight: 600; }
.rb-note-b > div:first-child { margin-bottom: 10px; }
.rb-note-more { font-size: 13px; color: var(--cinnabar); display: inline-block; margin-top: 4px; }

.rb-fine { margin: 10px 0 0; font-size: 12.5px; line-height: 1.7; color: var(--ink-3); text-align: center; }

@media (prefers-reduced-motion: reduce) {
  .rb-page * { animation: none !important; transition: none !important; }
}

/* ---------------- 作业点评闭环：状态条 / 成长档案 / 逐字批注 ---------------- */
.rb-steps{display:flex;align-items:center;gap:0;list-style:none;margin:0 0 14px;padding:0}
.rb-steps li{display:flex;align-items:center;gap:6px;font-size:12px;color:#a8a294;white-space:nowrap}
.rb-steps li i{
  flex:none;width:17px;height:17px;border-radius:50%;border:1px solid #d8d3c8;background:var(--paper);
  display:grid;place-items:center;font-style:normal;font-size:10px;color:#a8a294;line-height:1
}
.rb-steps li.done{color:var(--ink-2)}
.rb-steps li.done i{background:var(--pine, #4e7a5a);border-color:var(--pine, #4e7a5a);color:#fbf8f1}
.rb-steps li.on{color:var(--cinnabar);font-weight:600}
.rb-steps li.on i{border-color:var(--cinnabar);color:var(--cinnabar);background:var(--paper)}
.rb-steps li::after{content:"";width:12px;height:1.5px;background:#e2dbcb;margin:0 6px;border-radius:2px}
.rb-steps li:last-child::after{display:none}

.rb-growbox{margin:0 0 18px;padding:14px 16px;border:1px solid var(--line);border-radius:14px;background:#fdfbf5}
.rb-growth{display:flex;gap:10px;flex-wrap:wrap}
.rb-grow-k{flex:1 1 68px;text-align:center}
.rb-grow-k b{display:block;font-size:20px;color:var(--ink);font-family:Georgia,serif;line-height:1.3}
.rb-grow-k span{font-size:11.5px;color:var(--ink-3)}
.rb-spark{display:block;width:100%;height:34px;margin-top:12px}
.rb-grow-tip{margin:8px 0 0 !important;font-size:12px !important;color:var(--ink-3) !important;text-align:center}

.rb-charbox{padding:10px 2px 6px}
.rb-char-load{font-size:13px;color:var(--ink-3);padding:6px 0}
.rb-chars{display:flex;flex-wrap:wrap;gap:6px}
.rb-char{
  position:relative;min-width:42px;padding:6px 4px 5px;border:1px solid var(--line);border-radius:9px;
  background:var(--paper);text-align:center;line-height:1.25
}
.rb-char b{display:block;font-size:17px;color:var(--ink);font-family:"Songti SC","STSong",serif}
.rb-char em{display:block;font-style:normal;font-size:10.5px;color:var(--ink-3)}
.rb-char i{
  position:absolute;top:-5px;right:-5px;min-width:15px;height:15px;padding:0 3px;border-radius:8px;
  background:var(--cinnabar);color:#fbf8f1;font-style:normal;font-size:10px;line-height:15px;text-align:center
}
.rb-char.g{border-color:rgba(78,122,90,.45);background:rgba(78,122,90,.07)}
.rb-char.g em{color:#4e7a5a}
.rb-char.b{border-color:rgba(181,52,43,.4);background:rgba(181,52,43,.06)}
.rb-char.b em{color:var(--cinnabar)}
.rb-charlist{list-style:none;margin:12px 0 0;padding:0;border-top:1px dashed var(--line)}
.rb-charlist li{padding:9px 0;border-bottom:1px dashed var(--line);font-size:13px;color:var(--ink-2);line-height:1.7}
.rb-charlist li:last-child{border-bottom:0}
.rb-charlist li b{color:var(--ink);font-weight:600;margin-right:4px}
.rb-charlist li span{display:block;margin-top:3px;font-size:12.5px;color:var(--ink-3)}
.rb-char-none{margin:12px 0 0 !important;font-size:13px !important;color:var(--ink-3) !important;text-align:center}

/* ---------------- 结果页 CTA（单条跳转，不放推荐卡片） ---------------- */
.rb-cta{
  margin-top:18px;padding:18px 20px;border:1px solid var(--line);border-radius:14px;
  background:linear-gradient(180deg,#fdfbf5 0%,#f7f1e3 100%);
  display:flex;align-items:center;gap:16px;flex-wrap:wrap
}
.rb-cta-txt{flex:1 1 240px;min-width:0}
.rb-cta-txt b{display:block;font-size:16px;color:var(--ink);margin-bottom:6px}
.rb-cta-txt span{display:block;font-size:13.5px;color:var(--ink-3);line-height:1.85}
.rb-cta-btn{
  flex:none;display:inline-block;padding:12px 22px;border-radius:999px;
  background:var(--cinnabar);color:#fbf8f1;text-decoration:none;font-size:14.5px;font-weight:600;
  white-space:nowrap;transition:transform .15s,box-shadow .15s
}
.rb-cta-btn:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(181,52,43,.22)}
@media (max-width:520px){
  .rb-cta{flex-direction:column;align-items:stretch;text-align:center}
  .rb-cta-btn{text-align:center}
}

/* ---------- 成绩卡：亮一个小按钮，点开是整张卡（对齐 AI 测评的分享样式） ---------- */
.rb-cardbtn{
  margin-top:8px;padding:6px 14px;border:1px solid var(--line);border-radius:999px;
  background:transparent;color:var(--acc);font-size:12.5px;font-weight:600;cursor:pointer;
  font-family:inherit;transition:background .15s,border-color .15s
}
.rb-cardbtn:hover{background:rgba(181,52,43,.06);border-color:var(--acc)}
/* ---------- 成绩卡弹出层 ---------- */
.rb-modal{position:fixed;inset:0;z-index:120;display:flex;align-items:center;justify-content:center;padding:18px}
.rb-modal[hidden]{display:none}
.rb-modal-bg{position:absolute;inset:0;background:rgba(24,22,18,.55);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}
.rb-modal-card{
  position:relative;width:min(430px,100%);max-height:92vh;overflow:auto;
  background:var(--paper,#fbf8f1);border:1px solid var(--line);border-radius:16px;
  padding:20px 18px 18px;box-shadow:0 18px 48px rgba(24,22,18,.28)
}
.rb-modal-card h4{margin:0 0 4px;font-size:15px;font-weight:700;color:var(--ink,#201e1a)}
.rb-modal-x{
  position:absolute;right:10px;top:8px;width:30px;height:30px;line-height:1;border:0;border-radius:50%;
  background:transparent;color:var(--ink-3,#8d8677);font-size:22px;cursor:pointer;font-family:inherit
}
.rb-share-tip{margin:0 0 10px;font-size:12px;line-height:1.7;color:var(--ink-3,#8d8677)}
.rb-cardimg{display:block;width:100%;border-radius:12px;border:1px solid var(--line)}
.rb-modal-acts{display:flex;gap:8px;margin:12px 0 4px}
.rb-btn-save,.rb-btn-ghost{
  flex:1;text-align:center;padding:9px 12px;border-radius:9px;font-size:13.5px;font-weight:600;
  text-decoration:none;cursor:pointer;font-family:inherit;transition:filter .15s
}
.rb-btn-save{background:var(--cinnabar);color:#fbf8f1;border:1px solid var(--cinnabar)}
.rb-btn-save:link,.rb-btn-save:visited,.rb-btn-save:hover{color:#fbf8f1;text-decoration:none}
.rb-btn-save:hover{filter:brightness(1.06)}
.rb-btn-ghost{background:transparent;color:var(--ink-2,#5c564a);border:1px solid var(--line)}
.rb-btn-ghost:hover{background:rgba(0,0,0,.04)}
.rb-shareqr{
  display:flex;gap:12px;align-items:center;margin-top:12px;padding:10px;
  border:1px solid var(--line);border-radius:12px;background:rgba(0,0,0,.02)
}
.rb-shareqr-img{flex:0 0 76px;width:76px;height:76px;background:#fff;border-radius:8px;padding:4px;box-sizing:border-box}
.rb-shareqr-img svg{display:block;width:100%;height:100%}
.rb-shareqr-txt{flex:1;min-width:0;font-size:11.5px;line-height:1.65;color:var(--ink-3,#8d8677)}
.rb-shareqr-txt b{display:block;font-size:12.5px;color:var(--ink,#201e1a)}
.rb-shareqr-txt em{display:block;margin-top:3px;font-style:normal;word-break:break-all;opacity:.75}
@media (max-width:420px){ .rb-modal-acts{flex-direction:column} }