/* 气韵再生AI美育 · 样式（重写版，旧版备份在 .design-review/backup/styles.legacy.css）
   宣纸白底、墨色正文、竹青为主色，朱印只作点睛。
   层次靠留白、字号和细线，不用侧边色条、渐变、浮起卡片和装饰动效。 */
/* Bundled subset of Noto Serif SC Bold (only characters used by the site), so headings look the same on every computer. */
@font-face { font-family: 'Qiyun Serif'; src: url('/fonts/noto-serif-sc-bold.woff') format('woff'); font-weight: 500 900; font-display: swap; }
:root {
  color-scheme: light;
  --paper: #f2f3ef;
  --surface: #fbfbf9;
  --sunk: #e9ece7;
  --ink: #1f2a28;
  --ink-soft: #4d5a57;
  --ink-faint: #5f6b67;
  --bamboo: #2f5d50;
  --bamboo-deep: #1e4038;
  --bamboo-tint: #e3ebe6;
  --seal: #a23a2c;
  --seal-tint: #f6e7e3;
  --seal-deep: #7c2a1f;
  --line: #d5d9d3;
  --line-strong: #b4bcb5;
  --serif: 'Qiyun Serif', 'Source Han Serif SC', 'Noto Serif SC', 'Songti SC', 'STSong', 'SimSun', serif;
  --sans: 'Source Han Sans SC', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --radius: 6px;
}
* { box-sizing: border-box; }
html { min-width: 320px; background: var(--paper); -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: 16px; }
body { margin: 0; color: var(--ink); background: var(--paper); font: 15px/1.75 var(--sans); }
h1, h2, h3, p, figure, dl, dd { margin: 0; }
a { color: var(--bamboo); text-underline-offset: 3px; }
button { font: inherit; color: inherit; cursor: pointer; }
button:disabled { cursor: not-allowed; }
input, textarea, select { font-family: inherit; font-size: inherit; font-weight: 400; line-height: inherit; color: var(--ink); }
:focus-visible { outline: 2px solid var(--bamboo); outline-offset: 3px; }
::placeholder { color: var(--ink-faint); opacity: 1; }
.hidden { display: none !important; }
textarea, select, input:not([type='radio']):not([type='checkbox']):not([type='file']) { width: 100%; padding: 9px 12px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--surface); font-size: 15px; }
textarea { display: block; resize: vertical; }
input:focus, textarea:focus, select:focus { border-color: var(--bamboo); }
textarea:disabled, input:disabled, select:disabled { background: var(--sunk); color: var(--ink-soft); }
label > :is(textarea, input, select) { margin-top: 6px; }
input[type='radio'], input[type='checkbox'] { accent-color: var(--bamboo); }
.app-shell { max-width: 1440px; min-height: 100vh; margin: 0 auto; padding: 0 40px 40px; }

/* 页头、导航、通用文字与按钮 */
.topbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px 24px; padding: 24px 0 18px; }
.brand-lockup { display: flex; align-items: center; gap: 14px; min-width: 0; color: var(--ink); text-decoration: none; }
/* 品牌标志：AI 生成的朱砂印章图形 */
.brand-symbol { display: block; width: 44px; height: 44px; flex-shrink: 0; object-fit: contain; }
h1 { font: 600 26px/1.4 var(--serif); letter-spacing: 1px; }
.topbar-right { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; }
.developer-credit, .footer-developer { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; }
.developer-credit > span, .footer-developer > span { color: var(--ink-soft); font-size: 13px; }
.developer-credit strong, .footer-developer strong { color: var(--ink); font-size: 15px; font-weight: 700; }
.topbar-meta { display: flex; align-items: center; gap: 10px; }
.status-dot { display: inline-flex; align-items: center; gap: 6px; color: var(--ink-soft); font-size: 13px; }
.status-dot i { width: 8px; height: 8px; border-radius: 50%; background: var(--ink-faint); }
.status-dot.connected i { background: var(--bamboo); }
.icon-button { min-height: 32px; padding: 4px 12px; color: var(--ink-soft); border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--surface); font-size: 13px; }
.icon-button:hover { color: var(--bamboo); border-color: var(--bamboo); }
.site-nav { display: flex; flex-wrap: wrap; gap: 4px 28px; border-bottom: 1px solid var(--line); }
.site-nav a { margin-bottom: -1px; padding: 10px 0; color: var(--ink-soft); font-size: 15px; text-decoration: none; border-bottom: 2px solid transparent; }
.site-nav a:hover { color: var(--ink); }
.site-nav a[aria-current='page'] { color: var(--ink); font-weight: 600; border-bottom-color: var(--ink); }
main { display: block; }
.page-section-heading { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 12px 24px; margin-bottom: 16px; }
.page-section-heading h2, .direction-portal-heading h2, .records-heading h2, .studio-intro h2, .intro-copy h2, .workspace-heading h2 { font: 600 24px/1.4 var(--serif); }
.page-section-heading p, .records-heading p, .studio-intro p, .intro-copy p { margin-top: 6px; color: var(--ink-soft); font-size: 14px; }
.control-hint, .privacy-note, .archive-note, .mode-hint, .prompt-hint, .draft-status, .page-storage-status { color: var(--ink-soft); font-size: 13px; line-height: 1.7; }
.page-storage-status:empty, #courseRouteNotice:empty { display: none; }
.page-storage-status { margin-top: 16px; }
.primary-button, .secondary-button { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 8px 18px; border: 1px solid var(--bamboo); border-radius: var(--radius); font-size: 15px; font-weight: 600; text-decoration: none; transition: background-color .15s, color .15s; }
.primary-button { color: #fff; background: var(--bamboo); }
.primary-button:hover:not(:disabled) { background: var(--bamboo-deep); border-color: var(--bamboo-deep); }
.secondary-button { color: var(--bamboo); background: var(--surface); }
.secondary-button:hover:not(:disabled) { background: var(--bamboo-tint); }
.primary-button:disabled, .secondary-button:disabled { color: var(--ink-soft); border-color: var(--line); background: var(--sunk); }
.text-button { padding: 6px 0; color: var(--ink-soft); border: 0; background: none; font-size: 14px; }
.text-button:hover:not(:disabled) { color: var(--bamboo); text-decoration: underline; }
.text-button:disabled { color: var(--ink-soft); opacity: .7; }

/* 首页：一张题跋作为唯一的记忆点，其余内容按目录排列 */
.welcome-panel { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 1fr); align-items: center; gap: 48px; padding: 64px 0 56px; border-bottom: 1px solid var(--line); }
.welcome-copy h2 { font: 600 clamp(28px, 3.2vw, 44px)/1.4 var(--serif); letter-spacing: 1px; }
.welcome-description { max-width: 36em; margin-top: 20px; color: var(--ink-soft); font-size: 17px; text-wrap: pretty; }
.welcome-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; margin-top: 32px; }
.welcome-actions .primary-button { min-height: 48px; padding: 10px 24px; font-size: 16px; }
.hero-studio-link { font-size: 15px; }
/* 首屏主视觉：AI 生成的水墨立轴，像挂在展墙上的一幅画 */
/* 首屏主视觉：AI 生成的折扇，扇面写着系统名；已抠成透明底，直接落在页面纸色上，不加画框和底色 */
.hero-mark { justify-self: center; width: min(100%, 600px); margin: 0; }
.hero-mark img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 2; }
/* 首屏下方：合作院校与算法信息，左右两栏，用细线分隔，不做卡片 */
.home-credentials { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(300px, 1fr); align-items: center; gap: 32px 64px; padding: 36px 0; border-bottom: 1px solid var(--line); }
.credentials-title { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 14px; margin-bottom: 18px; color: var(--ink); font: 600 20px/1.4 var(--serif); }
.credentials-title small { color: var(--ink-soft); font: 400 13px/1.5 var(--sans); }
/* 院校名用竹青细点分隔，像展签一样一字排开 */
.partner-list { display: flex; flex-wrap: wrap; gap: 12px 0; margin: 0; padding: 0; list-style: none; }
.partner-list li { color: var(--ink); font: 600 16px/1.5 var(--serif); }
.partner-list li:not(:last-child)::after { content: '·'; margin: 0 14px; color: var(--bamboo); }
/* 备案信息：左侧一方朱印，右侧三行登记信息 */
.filing-block { display: flex; align-items: center; gap: 20px; padding: 20px 24px; border: 1px solid var(--line-strong); background: var(--surface); }
.filing-seal { display: grid; place-items: center; width: 56px; height: 56px; flex-shrink: 0; color: #fff; background: var(--seal); font: 600 15px/1.25 var(--serif); text-align: center; letter-spacing: .1em; }
.filing-block dl { display: grid; gap: 6px; margin: 0; }
.filing-block dl div { display: flex; gap: 14px; font-size: 14px; }
.filing-block dt { flex-shrink: 0; color: var(--ink-soft); }
.filing-block dd { margin: 0; color: var(--ink); font-weight: 600; }
.filing-block .filing-number { color: var(--seal-deep); font-variant-numeric: tabular-nums; }
@media (max-width: 960px) { .home-credentials { grid-template-columns: minmax(0, 1fr); } }
/* 手机：标签在上、内容在下，备案编号整串可断行，不再挤成碎行 */
@media (max-width: 640px) {
  .filing-block { align-items: flex-start; gap: 14px; padding: 16px; }
  .filing-seal { width: 44px; height: 44px; font-size: 13px; }
  .filing-block dl { gap: 10px; }
  .filing-block dl div { flex-direction: column; gap: 0; }
  .filing-block dt { font-size: 12px; }
  .filing-block .filing-number { word-break: break-all; }
}
/* 首页各段之间留出更大的呼吸空间 */
.direction-portal, .home-path, .home-gallery, .home-boundary { margin-top: 96px; }
.home-boundary { padding-top: 24px; border-top: 1px solid var(--line); }
.direction-portal-heading { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 8px 24px; margin-bottom: 16px; }
/* 板块出处：教育部文件为主依据，朱印小标签 + 链接；南大美育中心为辅 */
.direction-source { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 10px; margin-top: 10px; color: var(--ink); font: 600 15px/1.6 var(--serif); }
.direction-source a { color: var(--ink); text-decoration-color: var(--line-strong); }
.direction-source a:hover { color: var(--bamboo); }
.direction-source-label { padding: 1px 8px; color: #fff; background: var(--seal); font: 600 12px/1.6 var(--sans); letter-spacing: .1em; }
/* 教育部原文摘录：左侧竹青细线，引文用宋体，章节名小字 */
.direction-quote { display: grid; gap: 4px; max-width: 820px; margin: 10px 0 0; padding-left: 14px; border-left: 2px solid var(--bamboo); }
/* 引文用正文黑体，避免整段粗宋显得沉；章节名不折行 */
.direction-quote p { color: var(--ink); font: 400 14px/1.7 var(--sans); }
.direction-quote cite { margin-left: 10px; color: var(--ink-soft); font: normal 12px/1.6 var(--sans); white-space: nowrap; }
/* 每个板块侧重的核心素养 */
.literacy-tag { align-self: flex-start; margin-bottom: 6px; padding: 0 8px; color: var(--bamboo-deep); background: var(--bamboo-tint); font-size: 12px; line-height: 1.8; }
.direction-literacy { margin-top: 4px; max-width: 760px; color: var(--ink-soft); font-size: 13px; line-height: 1.7; }
.direction-literacy a { color: var(--ink-soft); }
.direction-portal-link { font-size: 15px; white-space: nowrap; }
.direction-portal-grid, .lesson-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); column-gap: 28px; border-top: 1px solid var(--ink); }
.direction-portal-card, .lesson-card { display: flex; flex-direction: column; gap: 2px; min-width: 0; padding: 18px 0 20px; color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--line); }
.direction-portal-card h3 { font: 600 20px/1.4 var(--serif); }
.direction-portal-card p { margin-top: 4px; color: var(--ink-soft); font-size: 14px; }
/* 板块细分：细线小签，和素养标签区分开 */
.direction-subs { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0 0; padding: 0; list-style: none; }
.direction-subs li { padding: 1px 8px; color: var(--ink-soft); border: 1px solid var(--line-strong); border-radius: 3px; font-size: 13px; line-height: 1.7; }
.direction-portal-card:hover h3, .lesson-card:hover strong { color: var(--bamboo); text-decoration: underline; text-underline-offset: 5px; }
#learningProgress { color: var(--ink-soft); font-size: 13px; }
.lesson-number { color: var(--seal); font: 600 14px/1.4 var(--serif); font-variant-numeric: tabular-nums; }
.lesson-card strong { font-size: 16px; font-weight: 600; line-height: 1.5; }
.lesson-card small, .lesson-status { color: var(--ink-soft); font-size: 13px; }
.lesson-status { margin-top: 4px; }
/* 首页课程卡：配图 + 编号与素养 + 标题 + 一句目标 + 时长与进度，和四大板块卡片同一套语言 */
.home-path .lesson-grid { row-gap: 8px; }
.home-path .lesson-card { gap: 0; padding: 20px 0 22px; }
/* 八个步骤：上方一段 AI 长卷表现“由无到有”，下方每步以朱印数字开头，和标志、备案印章同一语言 */
.steps-scroll { margin: 0 0 8px; }
/* 长卷上下是大片空白宣纸，3:1 只去掉空白，画面（约第 290～670 行）完整保留 */
.steps-scroll img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 1; object-fit: cover; object-position: center 46%; mix-blend-mode: multiply; }
.steps-scroll figcaption { display: flex; justify-content: space-between; margin-top: 6px; color: var(--ink-faint); font-size: 12px; letter-spacing: .1em; }
.step-head { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.step-seal { display: grid; place-items: center; width: 44px; height: 44px; flex-shrink: 0; color: #fff; background: var(--seal); border-radius: 3px; font: 700 24px/1 var(--serif); box-shadow: inset 0 0 0 2px var(--seal), inset 0 0 0 3px rgba(255, 255, 255, .55); transition: transform .2s ease; }
.home-path .lesson-card:hover .step-seal { transform: rotate(-4deg); }
.step-label { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; }
.step-index { color: var(--ink-soft); font: 600 13px/1.2 var(--serif); letter-spacing: .12em; }
.step-label .literacy-tag { margin-bottom: 0; }
@media (prefers-reduced-motion: reduce) { .home-path .lesson-card:hover .step-seal { transform: none; } }
.home-path .lesson-card strong { font: 600 18px/1.45 var(--serif); }
.lesson-goal { display: -webkit-box; margin-top: 6px; overflow: hidden; color: var(--ink-soft); font-size: 13px; line-height: 1.7; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.lesson-card-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: auto; padding-top: 12px; }
.lesson-duration { color: var(--ink-faint); font-size: 12px; }
.home-path .lesson-status { margin-top: 0; padding: 0 8px; color: var(--ink-soft); border: 1px solid var(--line-strong); border-radius: 3px; font-size: 12px; line-height: 1.8; }
.portal-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.portal-card { display: block; padding: 22px 24px; color: var(--ink); text-decoration: none; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.portal-card h2 { font: 600 19px/1.4 var(--serif); }
.portal-card p { margin-top: 6px; color: var(--ink-soft); font-size: 14px; }
.portal-card:hover { border-color: var(--bamboo); }
.home-boundary { max-width: 48em; color: var(--ink-soft); font-size: 14px; }
.home-boundary strong { margin-right: 6px; color: var(--ink); }
.home-boundary p { margin-top: 4px; }
.home-boundary a { display: inline-block; margin-top: 6px; }

/* 页脚、对话框、提示 */
.footer-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px 24px; margin-top: 72px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: 13px; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand strong { color: var(--ink); font: 600 18px/1.4 var(--serif); }
.footer-brand p { margin-top: 2px; color: var(--ink-soft); font-size: 13px; }
.footer-mark { display: block; width: 40px; height: 40px; flex-shrink: 0; }
.footer-links { display: flex; flex-wrap: wrap; gap: 6px 20px; }
.footer-links a { color: var(--ink-soft); font-size: 14px; text-decoration: none; }
.footer-links a:hover { color: var(--bamboo); text-decoration: underline; }
/* 备案号单独一行，居于页脚最底部 */
.footer-filing { flex-basis: 100%; padding-top: 14px; border-top: 1px dashed var(--line); color: var(--ink-faint); font-size: 12px; text-align: center; }
.settings-dialog { width: min(480px, calc(100vw - 32px)); max-height: calc(100dvh - 32px); padding: 0; overflow-y: auto; color: var(--ink); border: 1px solid var(--line-strong); border-radius: 8px; background: var(--surface); }
.settings-dialog::backdrop { background: rgba(31, 42, 40, .45); }
.settings-card { position: relative; padding: 28px; }
.settings-card h2 { padding-right: 36px; font: 600 21px/1.4 var(--serif); }
.dialog-close { position: absolute; top: 14px; right: 14px; width: 36px; height: 36px; color: var(--ink-soft); border: 0; background: none; font-size: 22px; }
.dialog-description { margin: 12px 0 20px; color: var(--ink-soft); font-size: 14px; }
.service-status-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; padding: 12px 0; border-top: 1px solid var(--line); font-size: 14px; }
.settings-status { margin-top: 8px; padding: 12px; color: var(--ink-soft); border-radius: var(--radius); background: var(--sunk); font-size: 14px; }
.dialog-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px; margin-top: 24px; }
.replacement-preview { max-height: 180px; margin: 12px 0 0; padding: 12px; overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; border-radius: var(--radius); background: var(--sunk); font: 14px/1.75 var(--sans); }
#repeatSettingsStatus { margin-top: 12px; color: var(--seal-deep); font-size: 14px; }
#accessForm label { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 600; }
#accessCodeInput { min-height: 44px; font-size: 16px; }
#accessError { margin-top: 10px; color: var(--seal-deep); font-size: 14px; }
.toast { position: fixed; right: 24px; bottom: 24px; z-index: 30; max-width: min(400px, calc(100vw - 32px)); padding: 12px 16px; color: #fff; border-radius: var(--radius); background: var(--ink); font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .15s; }
.toast.show { opacity: 1; }

/* 工作台：页首、课程关联、创作方向、练习抽屉 */
/* 工作台头部：一条横带交代用途，不再占两屏。
   标题、草稿状态、练习入口留在左，方向卡缩成小卡排在右侧，创作区紧接其后。 */
.studio-head { display: grid; grid-template-columns: minmax(0, 300px) minmax(0, 1fr); align-items: start; gap: 16px 36px; padding: 24px 0 16px; border-bottom: 1px solid var(--line); }
.studio-intro { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; padding: 0; }
.studio-intro h2 { font: 600 20px/1.5 var(--serif); }
.studio-intro p { max-width: 30em; }
.studio-intro-copy { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
/* 配图在大屏保留但收窄，小屏隐藏，避免把创作区推下去 */
.studio-intro-art { display: none; }
.creative-intro { margin: 0; }
.intro-copy { display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 12px; margin-bottom: 8px; }
.intro-copy h2 { font: 600 15px/1.4 var(--sans); }
.intro-copy p { color: var(--ink-soft); font-size: 13px; }
.direction-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.direction-card { display: flex; flex-direction: column; gap: 2px; min-width: 0; padding: 8px 10px; text-align: left; color: var(--ink); border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--surface); transition: background-color .15s, border-color .15s; }
.direction-card strong { font: 600 15px/1.4 var(--serif); }
/* 方向卡：小图在左、名称在右，整卡压低，不挤压工作区 */
.direction-card:has(.direction-card-art) { display: grid; grid-template-columns: 40px minmax(0, 1fr); grid-template-rows: auto auto; align-content: center; column-gap: 8px; padding: 6px 10px 6px 6px; }
.direction-card-art { grid-row: 1 / span 2; display: block; width: 40px; height: 40px; border-radius: 2px; background: var(--paper); }
.direction-card:has(.direction-card-art) strong { align-self: end; font-size: 14px; }
.direction-card:has(.direction-card-art) > span { align-self: start; font-size: 12px; }
.direction-card > span { color: var(--ink-soft); font-size: 12px; }
.direction-card.active .direction-card-art { outline: 2px solid rgba(255, 255, 255, .7); outline-offset: -2px; }
.direction-card:hover:not(:disabled) { border-color: var(--bamboo); }
.direction-card.active { color: #fff; border-color: var(--bamboo); background: var(--bamboo); }
.direction-card.active > span { color: #e8efeb; }
.direction-card:disabled { opacity: .6; }
@media (max-width: 1080px) { .studio-head { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 960px) { .direction-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }@media (max-width: 960px) { .studio-intro { grid-template-columns: minmax(0, 1fr); } .studio-intro-art { justify-self: center; width: min(100%, 540px); } }
.studio-lesson-context, .reference-learning { margin-top: 16px; padding: 20px 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.studio-lesson-context { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 24px; }
.studio-lesson-context h3, .reference-learning h3 { font: 600 18px/1.5 var(--serif); }
.studio-lesson-instruction { margin: 6px 0 10px; color: var(--ink-soft); font-size: 14px; }
.studio-lesson-context label, .reference-learning label { display: block; font-size: 14px; font-weight: 600; }
.studio-lesson-context p, .reference-learning p { margin-top: 8px; color: var(--ink-soft); font-size: 13px; }
.reference-learning-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 14px 0; }
.studio-intro .draft-status { margin-top: 4px; }
.creative-intro { margin: 0; }
.practice-drawer { margin-top: 12px; }
.practice-drawer > summary { width: fit-content; padding: 4px 0; color: var(--bamboo); font-size: 14px; font-weight: 600; cursor: pointer; }
.practice-panel { display: grid; grid-template-columns: minmax(240px, .8fr) minmax(0, 1.4fr); gap: 32px; margin-top: 12px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.practice-brief h2 { margin: 12px 0 6px; font: 600 20px/1.4 var(--serif); }
.practice-focus { color: var(--ink-soft); font-size: 14px; }
.practice-brief ol { margin: 12px 0 0; padding-left: 20px; font-size: 14px; }
.practice-brief li + li { margin-top: 6px; }
.observation-field { min-width: 0; }
.label-row { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 12px; margin-bottom: 8px; }
.observation-field label, .source-label { font-size: 15px; font-weight: 600; }
.observation-field label > span, .negative-field label > span { margin-left: 8px; color: var(--ink-soft); font-size: 13px; font-weight: 400; }
.source-label { display: block; margin: 14px 0 6px; }
.source-label > span { display: block; color: var(--ink-soft); font-size: 13px; font-weight: 400; }
#observationCount, .prompt-count { color: var(--ink-soft); font-size: 13px; font-variant-numeric: tabular-nums; white-space: nowrap; }
#observationInput { min-height: 110px; }
.observation-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; margin-top: 10px; }
#observationStatus, #observationPrivacy { color: var(--ink-soft); font-size: 13px; }
#observationPrivacy { margin-top: 8px; }

/* 工作台：三栏骨架与左侧参数 */
.workspace-heading { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 10px 24px; padding: 20px 0 12px; }
.studio-stage-label { margin-top: 4px; color: var(--seal-deep); font-size: 14px; font-weight: 600; }
.process-links { display: flex; flex-wrap: wrap; gap: 4px 20px; margin: 0; padding: 0; list-style: none; }
.process-links a { color: var(--ink-soft); font-size: 14px; text-decoration: none; }
.process-links a span { margin-right: 6px; font-variant-numeric: tabular-nums; }
.process-links a:hover { color: var(--bamboo); }
.process-links a.is-done { color: var(--bamboo); }
.process-links a.is-done span::before { content: '✓ '; }
.process-links a.is-current { color: var(--ink); font-weight: 700; text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 6px; }
.workspace { display: grid; grid-template-columns: 200px minmax(0, 1fr) 400px; gap: 24px; align-items: start; padding: 24px; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--surface); }
.left-rail, .canvas-column, .prompt-panel { min-width: 0; }
.left-rail { padding-right: 24px; border-right: 1px solid var(--line); }
.prompt-panel { padding-left: 24px; border-left: 1px solid var(--line); }
.rail-section { margin-bottom: 22px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.rail-section:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: 0; }
.section-heading { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 10px; }
.section-heading h2, .prompt-header h2 { font: 600 15px/1.4 var(--serif); }
.count-badge { min-width: 26px; padding: 0 8px; color: var(--bamboo-deep); border-radius: 999px; background: var(--bamboo-tint); font-size: 13px; text-align: center; font-variant-numeric: tabular-nums; }
.mode-switch { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
.intensity-options, .ratio-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
.mode-button, .style-tag, .intensity-button, .ratio-button, .toolbar-button, .reference-picker-button, .reference-clear-button, .quick-picks button, .sparkle-button { min-height: 40px; padding: 6px 10px; color: var(--ink); border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--surface); font-size: 14px; transition: background-color .15s, border-color .15s; }
:is(.mode-button, .style-tag, .intensity-button, .ratio-button, .toolbar-button, .reference-picker-button, .reference-clear-button, .quick-picks button, .sparkle-button):hover:not(:disabled) { border-color: var(--bamboo); }
.mode-button.active, .style-tag.active, .intensity-button.active, .ratio-button.active, .toolbar-button[aria-pressed='true'] { color: var(--bamboo-deep); border-color: var(--bamboo); background: var(--bamboo-tint); font-weight: 600; }
:is(.mode-button, .style-tag, .intensity-button, .ratio-button, .toolbar-button, .reference-picker-button, .reference-clear-button, .quick-picks button, .sparkle-button):disabled { color: var(--ink-soft); border-color: var(--line); background: var(--sunk); }
.mode-hint { margin-top: 10px; overflow-wrap: anywhere; }
.control-stack + .control-stack { margin-top: 20px; }
.field-label { display: block; margin-bottom: 6px; font-size: 14px; font-weight: 600; }
.control-stack > .field-label + .control-hint { margin: -2px 0 8px; }
.control-stack > .control-hint { margin-top: 8px; }
.select-wrap { position: relative; }
.select-wrap select { min-height: 42px; padding-right: 34px; appearance: none; }
.select-wrap > span { position: absolute; top: 50%; right: 12px; color: var(--ink-soft); transform: translateY(-50%); pointer-events: none; }
.style-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.style-conflict { margin-top: 8px; padding: 10px 12px; color: var(--seal-deep); border-radius: var(--radius); background: var(--seal-tint); font-size: 13px; }

.ratio-button { display: flex; flex-direction: column; align-items: center; gap: 4px; min-height: 84px; padding: 8px 2px; color: var(--ink-soft); }
.ratio-button b { font-size: 14px; font-weight: 600; }
.ratio-button small { font-size: 12px; overflow-wrap: anywhere; }
.ratio-square, .ratio-landscape, .ratio-portrait { display: block; flex-shrink: 0; border: 1.5px solid currentColor; }
.ratio-square { width: 20px; height: 20px; }
.ratio-landscape { width: 26px; height: 17px; margin: 1px 0; }
.ratio-portrait { width: 17px; height: 26px; }
.reference-picker { display: grid; grid-template-columns: minmax(0, 1fr) 48px; align-items: center; gap: 10px; margin-top: 14px; padding: 12px; border: 1px dashed var(--line-strong); border-radius: var(--radius); }
.reference-clear-button, #referenceName { grid-column: 1 / -1; }
#referenceName { color: var(--ink-soft); font-size: 13px; overflow-wrap: anywhere; }
.reference-thumbnail { width: 48px; height: 48px; overflow: hidden; border: 1px solid var(--line); border-radius: 4px; }
.reference-thumbnail img { display: block; width: 100%; height: 100%; object-fit: cover; }
#startExperimentButton, .portfolio-button, #resumeTaskButton, #dismissTaskButton { width: 100%; margin-top: 10px; }
.experiment-fields { margin-top: 12px; }
.experiment-fields .field-label { margin-top: 12px; }
.reference-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
.reference-item { min-width: 0; padding: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 4px; background: var(--sunk); }
.reference-item img { display: block; width: 100%; height: auto; aspect-ratio: 1; object-fit: cover; }
.reference-item:hover:not(:disabled), .reference-item.selected { outline: 2px solid var(--bamboo); outline-offset: 1px; }
.reference-item.image-unavailable { opacity: .6; }
.archive-empty { grid-column: 1 / -1; color: var(--ink-soft); font-size: 14px; }
.archive-note { margin-top: 10px; }

/* 工作台：画面与对照 */
.canvas-toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 12px; margin-bottom: 14px; }
.canvas-toolbar > div:first-child { min-width: 0; }
.canvas-label { display: block; color: var(--ink-soft); font-size: 13px; }
.canvas-toolbar strong { display: block; overflow: hidden; font: 600 17px/1.5 var(--serif); text-overflow: ellipsis; white-space: nowrap; }
.canvas-actions { display: flex; flex-wrap: wrap; gap: 6px; }
.toolbar-button { min-height: 36px; padding: 4px 10px; font-size: 13px; }
.artboard-wrap { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; padding: 16px; border-radius: var(--radius); background: var(--sunk); }
.artboard-wrap.comparing { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.artboard { position: relative; display: grid; place-items: center; width: 100%; aspect-ratio: 1 / .82; min-height: 380px; overflow: hidden; border: 1px solid var(--line); background: var(--surface); }
.artboard-inner { max-width: 26em; padding: 28px 24px; text-align: center; }
.artboard-inner h2 { font: 600 clamp(26px, 2.4vw, 34px)/1.5 var(--serif); }
.empty-copy { margin-top: 14px; color: var(--ink-soft); font-size: 15px; }
.empty-rule { display: block; width: 36px; height: 1px; margin: 22px auto 14px; background: var(--line-strong); }
.artboard-inner > small { color: var(--ink-soft); font-size: 13px; }

.result-image { position: absolute; inset: 0; z-index: 2; display: block; width: 100%; height: 100%; object-fit: contain; background: var(--surface); }
.image-overlay { position: absolute; right: 10px; bottom: 10px; left: 10px; z-index: 3; display: none; align-items: center; justify-content: space-between; gap: 10px; padding: 6px 6px 6px 12px; color: #fff; border-radius: var(--radius); background: rgba(31, 42, 40, .9); font-size: 13px; }
.image-overlay.visible { display: flex; }
.image-overlay button { width: 32px; height: 32px; flex-shrink: 0; color: #fff; border: 1px solid rgba(255, 255, 255, .5); border-radius: 4px; background: none; font-size: 18px; }
.generating-state { position: absolute; inset: 0; z-index: 4; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; padding: 24px; text-align: center; background: rgba(251, 251, 249, .97); }
.generating-state p { font: 600 19px/1.5 var(--serif); }
.generating-state small, #taskDetail { max-width: 300px; color: var(--ink-soft); font-size: 14px; }
#cancelGenerateButton { margin-top: 12px; }
.canvas-caption { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px; margin-top: 10px; color: var(--ink-soft); font-size: 13px; }
.piece-process, .comparison-hint { margin-top: 12px; padding: 10px 14px; border-radius: var(--radius); background: var(--bamboo-tint); font-size: 14px; overflow-wrap: anywhere; }
.comparison-pane { display: flex; flex-direction: column; min-width: 0; padding: 12px; border: 1px solid var(--line); background: var(--surface); }
.comparison-heading label { display: block; margin-bottom: 6px; color: var(--ink-soft); font-size: 13px; }
.comparison-heading select { min-height: 38px; font-size: 14px; }
.comparison-pane img { display: block; width: 100%; height: 260px; flex: 1; min-height: 0; margin-top: 10px; object-fit: contain; }
.comparison-pane p { margin-top: 8px; color: var(--ink-soft); font-size: 13px; overflow-wrap: anywhere; }
.comparison-settings { margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--line); font-size: 13px; }
.comparison-settings ul { margin: 6px 0 0; padding-left: 18px; overflow-wrap: anywhere; }
.artboard:fullscreen { width: 100vw; height: 100vh; aspect-ratio: auto; background: var(--ink); }
.artboard:fullscreen .result-image { background: var(--ink); }
.reflection-panel { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line); }
.reflection-header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 10px; }
.reflection-header h2 { font: 600 20px/1.4 var(--serif); }
.local-badge { color: var(--ink-soft); font-size: 13px; }
#reflectionGuide { color: var(--ink-soft); font-size: 14px; }
.reflection-panel > label { display: block; margin: 14px 0 6px; font-size: 15px; font-weight: 600; }
#reflectionInput { min-height: 120px; }
.reflection-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-top: 12px; }
.reflection-actions > span { color: var(--ink-soft); font-size: 13px; }
.reflection-actions > div { display: flex; flex-wrap: wrap; gap: 8px; }

/* 工作台：提示词栏。提示词用宋体书写，像画旁的题跋。 */
.prompt-header { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 12px; margin-bottom: 12px; }
.prompt-input-wrap { position: relative; }
#promptInput { min-height: 230px; padding: 16px 16px 56px; font: 17px/1.9 var(--serif); }
.sparkle-button { position: absolute; right: 10px; bottom: 10px; min-height: 34px; padding: 4px 10px; color: var(--bamboo); font-size: 13px; }
.prompt-hint { margin-top: 8px; }
/* AI 助手：竹青实底按钮 + 朱印式 AI 小标，和“请 AI 生成”同一视觉语言 */
.ai-assist-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; margin-top: 10px; }
.ai-assist-button { display: inline-flex; align-items: center; gap: 8px; min-height: 40px; padding: 6px 16px 6px 8px; color: #fff; border: 1px solid var(--bamboo); border-radius: var(--radius); background: var(--bamboo); font-size: 14px; font-weight: 600; transition: background-color .15s; }
.ai-assist-button:hover:not(:disabled) { background: var(--bamboo-deep); }
.ai-assist-button:disabled { color: var(--ink-soft); border-color: var(--line); background: var(--sunk); }
.ai-assist-mark { display: inline-grid; place-items: center; width: 24px; height: 24px; flex-shrink: 0; color: #fff; background: var(--seal); font: 700 11px/1 var(--sans); letter-spacing: 0; }
.ai-assist-button:disabled .ai-assist-mark { background: var(--ink-faint); }
.ai-assist-hint { flex: 1 1 180px; color: var(--ink-soft); font-size: 13px; line-height: 1.6; }
/* AI 画作点评：浅底细框，四项评语各占一行，“下一步”用朱色强调 */
.ai-critique { margin: 14px 0 16px; padding: 14px 16px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--surface); }
.ai-critique-head { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; }
.ai-critique-head strong { flex: 1 1 auto; font: 600 16px/1.4 var(--serif); }
.ai-critique-note { margin-top: 8px; color: var(--ink-soft); font-size: 13px; }
.ai-critique-body { display: grid; gap: 6px; margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line); }
.ai-critique-body p { font-size: 14px; line-height: 1.75; }
.ai-critique-body b { margin-right: 8px; color: var(--bamboo-deep); font: 600 14px/1.75 var(--serif); }
.ai-critique-body .ai-critique-next { margin-top: 4px; padding: 8px 10px; background: var(--seal-tint); }
.ai-critique-body .ai-critique-next b { color: var(--seal-deep); }
.prompt-builder, .prompt-preview { margin-top: 14px; padding: 0 14px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.prompt-builder[open], .prompt-preview[open] { padding-bottom: 14px; }
.prompt-builder > summary, .prompt-preview > summary { padding: 10px 0; color: var(--bamboo); font-size: 14px; font-weight: 600; cursor: pointer; }
.prompt-builder > p, .prompt-preview > p { color: var(--ink-soft); font-size: 13px; }
.builder-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 10px; }
.builder-grid label { font-size: 13px; font-weight: 600; }
.builder-grid input { min-height: 36px; margin-top: 4px; padding: 6px 9px; font-size: 14px; }
.builder-output { margin-top: 10px; padding: 10px; border-radius: var(--radius); background: var(--sunk); font-size: 14px; overflow-wrap: anywhere; }
.builder-output:empty { display: none; }
#builderLimit { color: var(--seal-deep); font-size: 13px; }
.builder-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 10px; }
.prompt-source-blocks { display: grid; gap: 8px; margin-top: 10px; }
.prompt-source-blocks > div { padding: 10px 12px; border-radius: var(--radius); background: var(--sunk); }
.prompt-source-blocks strong { font-size: 13px; }
.prompt-source-blocks p { margin-top: 2px; color: var(--ink-soft); font-size: 13px; overflow-wrap: anywhere; }
.preview-full-label { display: block; margin-top: 12px; font-size: 13px; font-weight: 600; }
#promptPreviewText { max-height: 260px; margin: 6px 0 0; padding: 12px; overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; border-radius: var(--radius); background: var(--sunk); font: 13px/1.8 var(--sans); }
.reflection-note { margin-top: 18px; padding: 12px 14px; border-radius: var(--radius); background: var(--bamboo-tint); }
.reflection-note span { font-size: 13px; font-weight: 600; }
.reflection-note p { margin-top: 4px; font-size: 14px; }
.prompt-divider { margin: 20px 0 8px; font-size: 14px; font-weight: 600; }
.quick-picks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
.quick-picks button { text-align: left; }
.negative-field { margin-top: 20px; }
.negative-field label { display: block; margin-bottom: 6px; font-size: 14px; font-weight: 600; }
.generate-area { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); }
.request-error { margin-bottom: 12px; padding: 10px 12px; color: var(--seal-deep); border-radius: var(--radius); background: var(--seal-tint); font-size: 14px; overflow-wrap: anywhere; }
.generation-note { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px; margin-bottom: 10px; color: var(--ink-soft); font-size: 13px; }
.generation-note b { color: var(--ink); font-weight: 600; }
.generate-button { display: flex; align-items: center; justify-content: center; width: 100%; min-height: 54px; padding: 10px 18px; color: #fff; border: 0; border-radius: var(--radius); background: var(--bamboo); font: 600 18px/1.4 var(--serif); letter-spacing: 2px; transition: background-color .15s; }
.generate-button:hover:not(:disabled) { background: var(--bamboo-deep); }
.generate-button:disabled { color: #fff; background: #5d6965; }
.privacy-note { margin-top: 10px; }

/* 课程页：左侧目录，中间窄栏正文，手记接在正文之后 */
.course-layout { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 48px; align-items: start; margin-top: 32px; }
.course-sidebar { position: sticky; top: 16px; }
.course-sidebar h2 { font: 600 20px/1.4 var(--serif); }
.course-chapters { display: grid; gap: 2px; margin: 14px 0; border-top: 0; }
.course-chapters .lesson-card { padding: 10px 12px; border: 0; border-radius: var(--radius); }
.course-chapters .lesson-card strong { font-size: 15px; }
.course-chapters .lesson-card small, .course-chapters .lesson-status { font-size: 12px; }
.course-chapters .lesson-card:hover { background: var(--sunk); }
.course-chapters .lesson-card:hover strong { text-decoration: none; }
.course-chapters .lesson-card[aria-current='step'] { background: var(--bamboo-tint); }
.course-records-link { font-size: 14px; }
.course-content { min-width: 0; max-width: 760px; }
.course-content > section + section { margin-top: 40px; }
.course-breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; color: var(--ink-soft); font-size: 14px; }
#courseRouteNotice { margin-bottom: 12px; color: var(--seal-deep); font-size: 14px; }
.lesson-meta { color: var(--seal-deep); font-size: 14px; }
#lessonTitle { margin-top: 6px; font: 600 clamp(28px, 3vw, 38px)/1.35 var(--serif); }
#lessonGoal { margin-top: 12px; color: var(--ink-soft); font-size: 17px; }
#lessonSteps { margin: 20px 0 0; padding-left: 22px; font-size: 16px; }
#lessonSteps li + li { margin-top: 8px; }
.lesson-example { margin-top: 32px; }
.lesson-example h3, .lesson-practice-check h3 { font: 600 18px/1.5 var(--serif); }
.example-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 12px; }
.example-pair > div { padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.example-pair span { color: var(--ink-soft); font-size: 13px; }
.example-pair p { margin-top: 4px; font-size: 15px; }
#lessonExplanation { margin-top: 12px; color: var(--ink-soft); font-size: 15px; }
#useLessonExample { margin-top: 14px; }
.lesson-example .control-hint { margin-top: 8px; }
.lesson-quiz { margin-top: 28px; padding: 18px 20px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.lesson-quiz fieldset { margin: 0; padding: 0; border: 0; }
.lesson-quiz legend { font-size: 16px; font-weight: 600; }
.lesson-quiz label { display: flex; align-items: baseline; gap: 8px; margin-top: 10px; font-size: 15px; }
#checkLearningQuiz { margin-top: 14px; }
#learningQuizFeedback { margin-top: 8px; color: var(--bamboo-deep); font-size: 14px; }
.lesson-workspace-link { display: inline-block; margin-top: 28px; font-size: 16px; font-weight: 600; }
.lesson-workspace-hint { margin-top: 6px; color: var(--ink-soft); font-size: 14px; }
.lesson-completion { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; border-radius: var(--radius); background: var(--bamboo-tint); }
.lesson-completion h2 { font: 600 20px/1.4 var(--serif); }
.lesson-completion p { margin-top: 4px; color: var(--ink-soft); font-size: 14px; }

.lesson-practice-check h2, .lesson-experiment-plan h2, .notebook-heading h2 { font: 600 20px/1.4 var(--serif); }
.lesson-practice-check ul { margin: 12px 0 0; padding-left: 22px; font-size: 15px; }
.lesson-practice-check li + li { margin-top: 6px; }
.lesson-practice-check h3 { margin-top: 20px; }
.lesson-practice-check p { margin-top: 6px; font-size: 15px; }
.lesson-experiment-plan p { margin-top: 6px; color: var(--ink-soft); font-size: 14px; }
.lesson-experiment-plan label, .lesson-notebook > label { display: block; margin-top: 16px; font-size: 15px; font-weight: 600; }
.lesson-notebook { padding: 24px; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--surface); }
.notebook-heading { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 12px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.notebook-heading small { color: var(--ink-soft); font-size: 13px; }
.lesson-notebook > label + :is(textarea, input, select) { margin-top: 6px; }
.lesson-notebook select { min-height: 42px; }
.lesson-notebook > .learning-self-check { display: flex; align-items: flex-start; gap: 8px; font-weight: 400; }
.learning-self-check input { margin-top: 6px; }
.learning-self-check span { font-size: 15px; }
.learning-record-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
#learningAttemptCount { margin-top: 12px; }
#learningSaveStatus { margin-top: 10px; color: var(--ink-soft); font-size: 13px; }
.lesson-attempts { margin-top: 10px; }
.attempt-entry { margin-top: 8px; padding: 10px 12px; border-radius: var(--radius); background: var(--sunk); font-size: 14px; }
.attempt-entry summary { font-weight: 600; cursor: pointer; }
.attempt-entry p { margin-top: 6px; color: var(--ink-soft); }
.attempt-entry pre { margin: 6px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; font: 13px/1.8 var(--sans); }

/* 学习记录：按单元排列的档案，而不是卡片墙 */
.records-heading { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 16px 24px; padding: 40px 0 24px; border-bottom: 1px solid var(--line); }
.records-heading p { max-width: 36em; }
.records-summary { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; margin-top: 24px; }
.summary-item { display: flex; flex-direction: column; }
.summary-item span { color: var(--ink-soft); font-size: 14px; }
.summary-item strong { font: 600 32px/1.3 var(--serif); font-variant-numeric: tabular-nums; }
.summary-item small { color: var(--ink-soft); font-size: 13px; }
.records-summary + #learningProgress { margin-top: 12px; }
.records-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 48px; margin-top: 32px; border-top: 1px solid var(--ink); }
.record-card { min-width: 0; padding: 24px 0; border-bottom: 1px solid var(--line); }
.record-card h3 { margin: 4px 0 12px; font: 600 20px/1.4 var(--serif); }
.record-card dl { display: grid; grid-template-columns: 7em minmax(0, 1fr); gap: 6px 16px; font-size: 14px; }
.record-card dt { color: var(--ink-soft); }
.record-card dd { white-space: pre-wrap; overflow-wrap: anywhere; }
.record-draft { margin-top: 12px; padding: 10px 12px; border-radius: var(--radius); background: var(--sunk); font-size: 14px; overflow-wrap: anywhere; }
.record-card > a { display: inline-block; margin-top: 12px; font-size: 14px; }
/* 记录卡左栏：编号在上，本步配图在下 */
.record-card > .record-art { grid-column: 1; grid-row: 2 / span 7; align-self: start; width: 64px; height: auto; aspect-ratio: 1; margin-top: 10px; border: 1px solid var(--line); background: var(--surface); }

/* 首页插画：首屏下方一段山水长卷，四大板块各配一幅小画 */
.hero-scroll { grid-column: 1 / -1; margin: 0; padding: 10px; border: 1px solid var(--line-strong); background: var(--surface); }
.hero-scroll img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 1; object-fit: cover; object-position: center 80%; }
.hero-scroll figcaption { margin-top: 8px; color: var(--ink-soft); font-size: 13px; }
.direction-portal-art { display: block; width: 100%; height: auto; aspect-ratio: 1; margin-bottom: 14px; border: 1px solid var(--line); background: var(--surface); }

/* 工作台空画布：一幅示例小画代替纯文字 */
.empty-art { display: block; width: 240px; height: auto; aspect-ratio: 3 / 2; margin: 0 auto 20px; object-fit: cover; border: 1px solid var(--line); background: var(--surface); }
@media (max-width: 640px) { .empty-art { width: 168px; margin-bottom: 14px; } }

/* 首页国画长廊：横向滚动，图片按原比例并排，统一高度 */
.gallery-heading { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 12px 24px; margin-bottom: 20px; }
.gallery-heading h2 { font: 600 24px/1.4 var(--serif); }
.gallery-note { max-width: 40em; margin-top: 6px; color: var(--ink-soft); font-size: 14px; }
.gallery-controls { display: flex; gap: 8px; }
.gallery-button { display: grid; place-items: center; width: 40px; height: 40px; padding: 0; color: var(--ink); border: 1px solid var(--line-strong); border-radius: 50%; background: var(--surface); font-size: 22px; line-height: 1; }
.gallery-button:hover:not(:disabled) { color: var(--bamboo); border-color: var(--bamboo); }
.gallery-button:disabled { opacity: .35; }
/* 自动滚动开关：文字按钮，状态写在字上 */
.gallery-auto { width: auto; padding: 0 16px; border-radius: 20px; font-size: 13px; }
.gallery-track { display: flex; gap: 20px; padding: 4px 0 16px; overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x mandatory; scroll-behavior: smooth; scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
.gallery-item { flex: 0 0 auto; scroll-snap-align: start; }
.gallery-item img { display: block; width: auto; height: 340px; max-width: 80vw; object-fit: cover; border: 1px solid var(--line); background: var(--sunk); }
/* 长廊开卷：原首屏山水长卷作为第一幅，同高横向展开，裁成 3:1 */
.gallery-item-scroll img { max-width: 88vw; }
.gallery-item figcaption { margin-top: 8px; color: var(--ink-soft); font-size: 13px; }
.gallery-item figcaption b { margin-right: 8px; color: var(--ink); font: 600 15px/1.4 var(--serif); }
/* 手机上长卷收窄到 78vw，露出下一幅的边缘，提示可以继续滑动；箭头放大到 44px 便于点按 */
@media (max-width: 640px) { .gallery-item img { height: 240px; } .gallery-item-scroll img { max-width: 78vw; } .gallery-track { gap: 14px; } .gallery-button { width: 44px; height: 44px; } }
@media (prefers-reduced-motion: reduce) { .gallery-track { scroll-behavior: auto; } }
/* 自动漂移时关闭吸附和平滑滚动，否则逐帧移动会被吸回、被拖慢；隐藏滚动条让长卷更像缓缓展开 */
.gallery-track.is-drifting { scroll-snap-type: none; scroll-behavior: auto; scrollbar-width: none; }
.gallery-track.is-drifting::-webkit-scrollbar { display: none; }

/* 逐课插画与学习记录页题图 */
/* 每步配图放在目标和步骤右侧，正文绕排，不再孤零零压在标题下 */
.lesson-art { display: block; float: right; width: min(42%, 300px); height: auto; aspect-ratio: 1; margin: 20px 0 16px 28px; border: 1px solid var(--line); background: var(--surface); }
.lesson-guide .lesson-example, .lesson-guide .lesson-quiz { clear: both; }
@media (max-width: 640px) { .lesson-art { float: none; width: min(100%, 300px); margin: 16px 0 8px; } }
.lesson-art[hidden] { display: none; }
.records-art { display: block; width: min(100%, 720px); height: auto; aspect-ratio: 3 / 2; margin: 24px auto 0; border: 1px solid var(--line); background: var(--surface); }

/* 与首页统一的展览式标题：大号宋体编号作为每页的视觉锚点 */
.records-heading h2, .studio-intro h2 { font-size: clamp(28px, 3vw, 38px); }
.lesson-heading { display: flex; align-items: flex-start; gap: 20px; }
.lesson-index { color: var(--seal); font: 600 clamp(56px, 6vw, 84px)/.9 var(--serif); font-variant-numeric: tabular-nums; }
.lesson-heading #lessonTitle { margin-top: 2px; }
.course-chapters .lesson-card small { display: none; }
.summary-item strong { font-size: 44px; }
.record-card { display: grid; grid-template-columns: 64px minmax(0, 1fr); column-gap: 16px; align-content: start; }
.record-card > * { grid-column: 2; }
.record-card > .record-number { grid-column: 1; grid-row: 1; color: var(--seal); font: 600 36px/1 var(--serif); font-variant-numeric: tabular-nums; }
.record-empty { color: var(--ink-soft); font-size: 14px; }
@media (max-width: 640px) {
  .lesson-heading { gap: 14px; }
  .record-card { grid-template-columns: 44px minmax(0, 1fr); column-gap: 12px; }
  .record-card > .record-number { font-size: 28px; }
  .record-card > .record-art { width: 44px; }
}

/* 响应式 */
@media (max-width: 1280px) {
  .app-shell { padding: 0 28px 32px; }
  .workspace { grid-template-columns: 220px minmax(0, 1fr); grid-template-areas: 'rail prompt' 'rail canvas'; gap: 24px 28px; }
  .left-rail { grid-area: rail; }
  .prompt-panel { grid-area: prompt; padding: 0 0 24px; border-left: 0; border-bottom: 1px solid var(--line); }
  .canvas-column { grid-area: canvas; }
  #promptInput { min-height: 170px; }
}
@media (max-width: 960px) {
  .welcome-panel { grid-template-columns: minmax(0, 1fr); gap: 36px; padding: 44px 0; }
  .hero-mark { justify-self: center; width: min(100%, 560px); }
  .direction-portal-grid, .lesson-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .portal-grid { grid-template-columns: minmax(0, 1fr); }
  .course-layout { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .course-sidebar { position: static; }
  .course-chapters { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .practice-panel { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .records-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 760px) {
  .workspace { grid-template-columns: 180px minmax(0, 1fr); padding: 18px; }
  .left-rail { padding-right: 16px; }
  .direction-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .artboard-wrap.comparing { grid-template-columns: minmax(0, 1fr); }
  .studio-lesson-context, .reference-learning-fields { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .app-shell { padding: 0 16px 24px; }
  .topbar { padding: 18px 0 14px; }
  h1 { font-size: 22px; }
  .topbar-right { width: 100%; justify-content: space-between; }
  .site-nav { flex-wrap: nowrap; gap: 0 20px; overflow-x: auto; white-space: nowrap; }
  .site-nav a { flex-shrink: 0; font-size: 14px; }
  .welcome-panel { padding: 32px 0; gap: 28px; }
  .welcome-description { font-size: 16px; }
  .hero-mark { justify-self: center; width: 100%; }
  .direction-portal, .home-path, .home-gallery, .home-boundary { margin-top: 64px; }
  .example-pair, .builder-grid { grid-template-columns: minmax(0, 1fr); }
  .records-summary { gap: 12px; }
  .summary-item strong { font-size: 30px; }
  .workspace { display: flex; flex-direction: column; align-items: stretch; gap: 22px; padding: 16px; }
  .left-rail { display: contents; }
  .rail-section { margin-bottom: 0; }
  .rail-section:nth-child(1) { order: 0; }
  .rail-section:nth-child(2), .rail-section.experiment-section { order: 1; }
  .prompt-panel { order: 2; padding: 0 0 22px; }
  .canvas-column { order: 3; }
  .rail-section.reference-section { order: 4; padding-top: 18px; border-top: 1px solid var(--line); }
  #promptInput { min-height: 190px; }
  .artboard { aspect-ratio: auto; height: 320px; min-height: 280px; }
  .canvas-toolbar { flex-direction: column; align-items: flex-start; }
  .reference-list { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .reflection-actions { flex-direction: column; align-items: stretch; }
  .reflection-actions > div > button { flex: 1; }
  textarea, select, input:not([type='radio']):not([type='checkbox']):not([type='file']) { font-size: 16px; }
  .record-card dl { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .record-card dd + dt { margin-top: 8px; }
  .footer-bar { flex-direction: column; align-items: flex-start; margin-top: 48px; }
  .settings-card { padding: 24px 20px; }
  .toast { right: 16px; bottom: 16px; }
}
/* 灵感创作 / 画作建议：与首页同一套宣纸底、细框、朱印、竹青按钮 */
.ai-page-hero { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); align-items: center; gap: 40px; padding: 40px 0 32px; border-bottom: 1px solid var(--line); }
.ai-page-kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--seal-deep); font-size: 14px; font-weight: 600; letter-spacing: .12em; }
.ai-page-copy h2 { margin: 14px 0 12px; font: 600 clamp(26px, 3.2vw, 36px)/1.35 var(--serif); }
.ai-page-copy p { max-width: 34em; color: var(--ink-soft); line-height: 1.85; }
.ai-flow { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 0; padding: 0; list-style: none; counter-reset: flow; }
.ai-flow li { counter-increment: flow; display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px 6px 6px; border: 1px solid var(--line-strong); border-radius: 999px; background: var(--surface); font-size: 14px; }
.ai-flow li::before { content: counter(flow); display: grid; place-items: center; width: 22px; height: 22px; color: #fff; background: var(--seal); border-radius: 50%; font: 700 12px/1 var(--sans); }
.ai-page-banner { width: 100%; height: auto; aspect-ratio: 3 / 2; object-fit: cover; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.ai-workspace { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; gap: 28px; padding: 32px 0 8px; }
.ai-panel { display: flex; flex-direction: column; gap: 12px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.ai-panel-title { display: flex; align-items: center; gap: 12px; margin: 0 0 4px; font: 600 20px/1.4 var(--serif); }
.ai-panel-title .step-seal { width: 34px; height: 34px; font-size: 18px; }
.ai-field-label { margin-top: 4px; font-weight: 600; font-size: 14px; }
.ai-field-label small, .chip-group legend small { margin-left: 6px; color: var(--ink-faint); font-weight: 400; }
.idea-examples { display: flex; flex-wrap: wrap; gap: 6px; }
.idea-examples button { padding: 4px 10px; color: var(--ink-soft); border: 1px dashed var(--line-strong); border-radius: 999px; background: none; font-size: 13px; }
.idea-examples button:hover { color: var(--bamboo); border-color: var(--bamboo); }
.chip-group { margin: 0; padding: 0; border: 0; }
.chip-group legend { margin-bottom: 8px; padding: 0; font-weight: 600; font-size: 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { display: inline-flex; flex-direction: column; align-items: flex-start; min-height: 36px; padding: 6px 14px; color: var(--ink); border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--paper); font-size: 14px; line-height: 1.4; transition: border-color .15s, background-color .15s; }
.chip small { color: var(--ink-faint); font-size: 12px; }
.chip:hover { border-color: var(--bamboo); }
.chip[aria-pressed='true'] { color: var(--bamboo-deep); border-color: var(--bamboo); background: var(--bamboo-tint); box-shadow: inset 0 0 0 1px var(--bamboo); font-weight: 600; }
.chips-hint { display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); }
/* 带示例小画的选项：画科三张、画法八张，图在上、名称与说明在下 */
.chip b { font-weight: inherit; }
.chip-art { gap: 4px; padding: 6px; }
.chip-art img { display: block; width: 100%; height: auto; aspect-ratio: 1; border-radius: 2px; background: var(--surface); }
.chip-art b, .chip-art small { padding: 0 4px; }
#genreChips { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
#genreChips .chip-art { align-items: center; }
.chip-art[aria-pressed='true'] img { outline: 2px solid var(--bamboo); outline-offset: -2px; }
.technique-preview { margin: 0 0 14px; }
.technique-preview img { display: block; width: min(100%, 320px); height: auto; aspect-ratio: 1; margin: 0 auto; border: 1px solid var(--line); background: var(--surface); }
.technique-preview figcaption { max-width: 28em; margin: 10px auto 0; color: var(--ink-soft); font-size: 13px; line-height: 1.7; }
.ai-wide-button { justify-content: center; width: 100%; min-height: 48px; margin-top: 6px; font-size: 16px; }
.ai-status { min-height: 1.6em; color: var(--ink-soft); font-size: 13px; line-height: 1.6; }
.plan-empty { padding: 28px 20px; color: var(--ink-faint); border: 1px dashed var(--line-strong); border-radius: var(--radius); background: var(--paper); font-size: 14px; line-height: 1.8; text-align: center; }
.plan-card { display: flex; flex-direction: column; gap: 10px; }
.plan-title { margin: 0; color: var(--ink); font: 600 24px/1.4 var(--serif); letter-spacing: .08em; }
.plan-concept { color: var(--ink-soft); line-height: 1.8; }
.plan-rows, .advice-rows { display: grid; gap: 0; margin: 0; border-top: 1px solid var(--line); }
.plan-rows > div, .advice-row { display: grid; grid-template-columns: 52px minmax(0, 1fr); gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.plan-rows dt, .advice-row dt { color: var(--seal-deep); font: 600 15px/1.7 var(--serif); }
.plan-rows dd, .advice-row dd { margin: 0; line-height: 1.75; font-size: 14px; }
.plan-meta { color: var(--ink-faint); font-size: 12px; letter-spacing: .04em; }
.plan-generate-title { margin-top: 12px; padding-top: 16px; border-top: 1px solid var(--line); }
.paint-result { margin: 4px 0 0; }
/* 竖幅立轴不再撑满整列：限高后居中，左右两栏高度更接近 */
.paint-result img { display: block; width: auto; max-width: 100%; height: auto; max-height: 560px; margin: 0 auto; border: 1px solid var(--line); background: var(--paper); }
.paint-result figcaption { display: flex; flex-direction: column; gap: 10px; margin-top: 10px; color: var(--ink-soft); font-size: 13px; }
.paint-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.paint-actions a { text-decoration: none; }
.upload-drop { position: relative; display: grid; place-items: center; min-height: 240px; padding: 16px; border: 1px dashed var(--line-strong); border-radius: var(--radius); background: var(--paper); cursor: pointer; text-align: center; transition: border-color .15s, background-color .15s; }
.upload-drop:hover, .upload-drop.dragging, .upload-drop:focus-within { border-color: var(--bamboo); background: var(--bamboo-tint); }
.upload-drop input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.upload-hint { display: flex; flex-direction: column; gap: 6px; color: var(--ink-soft); }
.upload-hint strong { color: var(--bamboo); font: 600 17px/1.4 var(--serif); }
.upload-hint small { font-size: 13px; line-height: 1.6; }
.upload-preview { max-width: 100%; max-height: 420px; object-fit: contain; }
.advice-row-key { margin: 0 -12px; padding: 12px; background: var(--seal-tint); border-bottom-color: transparent; }
.advice-row ol { margin: 0; padding-left: 1.3em; }
.advice-row li + li { margin-top: 4px; }
.archive-pick { display: flex; flex-direction: column; gap: 8px; }
.archive-picks { display: grid; grid-template-columns: repeat(auto-fill, minmax(64px, 1fr)); gap: 8px; }
.archive-picks button { aspect-ratio: 1; padding: 0; overflow: hidden; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--paper); }
.archive-picks button:hover { border-color: var(--bamboo); }
.archive-picks button[aria-pressed='true'] { border-color: var(--seal); box-shadow: 0 0 0 2px var(--seal); }
.archive-picks img { display: block; width: 100%; height: 100%; object-fit: cover; }
/* 首页：两项 AI 服务入口 */
.home-ai-services { padding: 40px 0 8px; }
.home-ai-services > h2 { margin: 0 0 6px; font: 600 26px/1.4 var(--serif); }
.home-ai-services > p { margin-bottom: 20px; color: var(--ink-soft); }
.ai-service-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.ai-service-card { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1fr); align-items: center; overflow: hidden; color: var(--ink); border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); text-decoration: none; transition: border-color .15s, box-shadow .15s; }
.ai-service-card:hover { border-color: var(--bamboo); box-shadow: 0 6px 20px rgba(31, 42, 38, .08); }
/* 配图按原图 3:2 完整显示，不裁切 */
.ai-service-card img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 2; }
.ai-service-card div { display: flex; flex-direction: column; gap: 8px; padding: 20px 22px; }
.ai-service-card h3 { display: flex; align-items: center; gap: 8px; margin: 0; font: 600 20px/1.4 var(--serif); }
.ai-service-card p { color: var(--ink-soft); font-size: 14px; line-height: 1.75; }
.ai-service-card .ai-service-go { margin-top: auto; color: var(--bamboo); font-weight: 600; font-size: 14px; }
@media (max-width: 960px) { .ai-service-grid { grid-template-columns: minmax(0, 1fr); } }
/* 桌面端：右栏方案和成画变长时，左栏选项保持可见，方便改选项再生成 */
@media (min-width: 961px) { .ai-workspace > .ai-panel:first-child { position: sticky; top: 16px; } }
@media (max-width: 960px) { .ai-page-hero, .ai-workspace { grid-template-columns: minmax(0, 1fr); gap: 24px; } .ai-page-banner { justify-self: center; width: min(100%, 540px); } }
@media (max-width: 640px) { .ai-page-hero { padding: 24px 0 20px; } .ai-panel { padding: 16px; } .ai-workspace { padding-top: 20px; } .upload-drop { min-height: 180px; } }

/* 首页条款块与条款页：朱印“条款”+ 细框，与备案块同一语言 */
.home-terms { display: flex; align-items: flex-start; gap: 20px; margin-top: 96px; padding: 24px 28px; border: 1px solid var(--line); border-left: 3px solid var(--seal); border-radius: var(--radius); background: var(--surface); }
.home-terms h2 { margin: 0 0 10px; font: 600 20px/1.4 var(--serif); }
.home-terms-list { display: grid; gap: 8px; margin: 0; padding-left: 1.2em; color: var(--ink-soft); font-size: 14px; line-height: 1.75; }
.home-terms-list strong { color: var(--ink); }
.home-terms-foot { margin-top: 12px; color: var(--ink-soft); font-size: 13px; }
.home-terms-foot a { margin-left: 8px; font-weight: 600; }
.policy-note { margin-top: 8px; color: var(--ink-faint); font-size: 12px; line-height: 1.6; }
.terms-page { max-width: 820px; }
.terms-heading { padding: 40px 0 24px; border-bottom: 1px solid var(--line); }
.terms-heading h2 { margin: 14px 0 10px; font: 600 clamp(26px, 3vw, 34px)/1.35 var(--serif); }
.terms-heading p { color: var(--ink-soft); line-height: 1.8; }
.terms-seal { width: 30px; height: 30px; font-size: 11px; }
.terms-list { margin: 8px 0 0; padding: 0; list-style: none; counter-reset: term; }
.terms-list li { counter-increment: term; display: grid; grid-template-columns: 44px minmax(0, 1fr); column-gap: 12px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.terms-list li::before { content: counter(term); grid-row: 1 / span 4; display: grid; place-items: center; width: 34px; height: 34px; color: #fff; background: var(--seal); border-radius: 3px; font: 700 16px/1 var(--serif); }
.terms-list h3 { margin: 4px 0 6px; font: 600 18px/1.4 var(--serif); }
.terms-list p { color: var(--ink-soft); font-size: 14px; line-height: 1.85; }
.terms-list p + p { margin-top: 6px; }
.terms-filing { margin-top: 24px; color: var(--ink-faint); font-size: 12px; text-align: center; }
@media (max-width: 640px) { .home-terms { flex-direction: column; padding: 18px; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* 经典范式 / 照片转国画：沿用宣纸底、细线、竹青按钮，只补这两页独有的排布 */
.forms-section { padding: 32px 0 8px; }
.forms-heading { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 24px; margin-bottom: 16px; }
.forms-heading h3 { margin: 0; font: 600 22px/1.4 var(--serif); }
.forms-note { max-width: 46em; color: var(--ink-soft); font-size: 13px; line-height: 1.7; }
.forms-tabs { margin-bottom: 20px; }
/* 像美术馆挂画：同排作品等高并排，宽度随幅式变化，既不裁切也不留空框 */
.forms-grid { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 24px 20px; }
.forms-card { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; padding: 0; border: 0; background: none; text-align: left; }
.forms-card-frame { display: block; height: 300px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); transition: border-color .15s, box-shadow .15s; }
.forms-card:hover .forms-card-frame, .forms-card:focus-visible .forms-card-frame { border-color: var(--bamboo); box-shadow: 0 6px 20px rgba(31, 42, 38, .08); }
.forms-card-frame img { display: block; width: auto; height: 100%; }
.forms-card-caption { display: flex; flex-direction: column; gap: 2px; }
.forms-card-caption strong { font: 600 17px/1.5 var(--serif); }
.forms-card-caption small { color: var(--ink-soft); font-size: 13px; }
.forms-meta { color: var(--ink-soft); font-size: 14px; line-height: 1.8; }
.forms-dialog .settings-card { width: min(1080px, 94vw); max-width: none; }
.forms-dialog-body { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); align-items: start; gap: 24px; margin-top: 16px; }
.forms-dialog-figure { margin: 0; }
.forms-dialog-figure img { display: block; width: auto; max-width: 100%; max-height: 68vh; margin: 0 auto; border: 1px solid var(--line); background: var(--paper); }
.forms-dialog-figure figcaption { margin-top: 10px; color: var(--ink-faint); font-size: 12px; line-height: 1.7; text-align: center; }
.forms-dialog-side { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.forms-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.forms-interpret { display: grid; gap: 0; border-top: 1px solid var(--line); }
.forms-interpret-row { display: grid; grid-template-columns: 52px minmax(0, 1fr); gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.forms-interpret-row dt { color: var(--seal-deep); font: 600 15px/1.7 var(--serif); }
.forms-interpret-row dd { margin: 0; font-size: 14px; line-height: 1.8; }
/* 照片转国画：原图与作品并排，固定同一高度、各自按比例完整显示，两侧标签才能对齐 */
.compare-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; gap: 12px; }.compare-pair figure { display: flex; flex-direction: column; gap: 8px; margin: 0; }
.compare-pair img { display: block; width: 100%; height: 340px; object-fit: contain; border: 1px solid var(--line); background: var(--paper); }
.compare-pair figcaption { color: var(--ink-soft); font-size: 13px; text-align: center; }
.upload-drop.has-image { padding: 12px; border-style: solid; background: var(--paper); }
.upload-drop.has-image .upload-preview { max-width: 100%; max-height: 320px; width: auto; }
@media (max-width: 900px) {
  .forms-dialog-body { grid-template-columns: minmax(0, 1fr); }
  .forms-dialog-figure img { max-height: 46vh; }
}
@media (max-width: 640px) {
  .forms-grid { gap: 18px 14px; }
  .forms-card-frame { height: 220px; }
  .compare-pair { grid-template-columns: minmax(0, 1fr); }
}
/* 方案已出后，读照片按钮降为次要样式：不再用竹青实底，避免与"再画一幅"抢注意力 */
.ai-assist-button.is-quiet { color: var(--bamboo); background: var(--surface); border-color: var(--line-strong); font-weight: 600; }
.ai-assist-button.is-quiet:hover:not(:disabled) { color: var(--bamboo-deep); background: var(--bamboo-tint); border-color: var(--bamboo); }
/* 登录框：账号与密码上下排列，提示文字压低，避免和主按钮抢注意力 */
#loginFields, #codeFields { display: flex; flex-direction: column; gap: 6px; }
#loginFields.hidden, #codeFields.hidden { display: none; }
#loginFields label, #codeFields label { margin-top: 8px; font-weight: 600; font-size: 14px; }
#loginFields input, #codeFields input { width: 100%; }
#loginFields { padding-bottom: 4px; }
.login-help { margin-top: 12px; color: var(--ink-soft); font-size: 12px; line-height: 1.7; }
#accessError:empty { display: none; }
#accessError { margin-top: 10px; color: var(--seal); font-size: 13px; }