/* ============================================================
 * styles.css — 彧溪斋 · 书法艺术馆
 * 传统中式视觉：宣纸米白底 / 墨黑字 / 朱红印章 / 留白
 * ============================================================ */

:root {
  --paper: #f5efe0;        /* 宣纸米白 */
  --paper-dark: #ece3cf;
  --ink: #1f1b18;          /* 墨黑 */
  --ink-soft: #4a443d;
  --cinnabar: #9e2b25;     /* 朱红 */
  --cinnabar-light: #c0413a;
  --jade: #5b7553;         /* 青绿点缀 */
  --line: #d8cdb4;
  --shadow: rgba(31, 27, 24, 0.15);
  --serif: "KaiTi", "STKaiti", "Kaiti SC", "Songti SC", "SimSun", "宋体", serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--serif);
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 20% 10%, rgba(158, 43, 37, 0.04) 0, transparent 40%),
    radial-gradient(circle at 80% 90%, rgba(91, 117, 83, 0.05) 0, transparent 40%);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------- 顶部导航 ---------- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: linear-gradient(180deg, #fbf7ec, var(--paper));
  border-bottom: 2px solid var(--ink);
  position: sticky;
  top: 0;
  z-index: 50;
}
.brand { display: flex; align-items: center; gap: 12px; }
.seal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px; height: 46px;
  background: var(--cinnabar);
  color: #fff;
  font-size: 26px;
  border-radius: 6px;
  box-shadow: inset 0 0 0 2px rgba(255,255,255,0.25);
}
.brand-text h1 { font-size: 24px; letter-spacing: 4px; }
.brand-text p { font-size: 12px; color: var(--ink-soft); letter-spacing: 2px; }

.main-nav { display: flex; gap: 8px; }
.nav-link {
  text-decoration: none;
  color: var(--ink);
  padding: 8px 16px;
  border: 1px solid transparent;
  border-radius: 4px;
  letter-spacing: 2px;
  transition: all .2s;
}
.nav-link:hover { background: var(--paper-dark); }
.nav-link.active {
  color: #fff;
  background: var(--ink);
}
.fav-count {
  display: inline-block;
  min-width: 18px;
  text-align: center;
  background: var(--cinnabar);
  color: #fff;
  border-radius: 9px;
  font-size: 12px;
  padding: 0 5px;
}
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--ink);
  font-size: 20px;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  color: var(--ink);
}

/* ---------- 工具栏 ---------- */
.toolbar {
  padding: 18px 28px 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
}
.search-box { flex: 1 1 240px; max-width: 360px; }
.search-box input {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--serif);
  font-size: 15px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fffdf8;
  color: var(--ink);
}
.search-box input:focus {
  outline: none;
  border-color: var(--cinnabar);
  box-shadow: 0 0 0 2px rgba(158,43,37,0.12);
}
.script-tabs { display: flex; flex-wrap: wrap; gap: 6px; }
.tab {
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 1px;
  padding: 7px 14px;
  border: 1px solid var(--line);
  background: #fffdf8;
  color: var(--ink-soft);
  border-radius: 4px;
  cursor: pointer;
  transition: all .2s;
}
.tab:hover { border-color: var(--ink); }
.tab.active {
  background: var(--cinnabar);
  color: #fff;
  border-color: var(--cinnabar);
}

/* ---------- 内容区 ---------- */
.content {
  flex: 1;
  padding: 18px 28px 40px;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
}
.section-title {
  font-size: 20px;
  letter-spacing: 3px;
  margin: 10px 0 18px;
  padding-left: 12px;
  border-left: 5px solid var(--cinnabar);
}
.empty-tip {
  text-align: center;
  color: var(--ink-soft);
  padding: 60px 20px;
  font-size: 15px;
}

/* ---------- 画廊横幅（高清氛围图） ---------- */
.gallery-hero {
  height: 240px;
  border-radius: 8px;
  margin-bottom: 22px;
  background-color: var(--paper-dark);
  background-size: cover;
  background-position: center;
  border: 1px solid var(--line);
  display: flex;
  align-items: flex-end;
  position: relative;
  overflow: hidden;
}
.gallery-hero::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(31,27,24,0.04) 0%, rgba(31,27,24,0.5) 100%);
}
.hero-caption {
  position: relative;
  color: #fff;
  font-size: 16px;
  letter-spacing: 3px;
  padding: 0 0 18px 20px;
  text-shadow: 0 1px 3px rgba(0,0,0,0.55);
}

/* ---------- 画廊网格 ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 22px;
}
.card {
  background: #fffdf8;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  cursor: pointer;
  transition: transform .2s, box-shadow .2s;
  position: relative;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 22px var(--shadow);
}
.art {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--paper);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
}
.art::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at center,
    rgba(245,239,224,0.55) 0%, rgba(245,239,224,0.28) 55%, rgba(245,239,224,0.06) 100%);
  pointer-events: none;
}
.art-char {
  position: relative;
  font-size: 76px;
  color: var(--ink);
  writing-mode: vertical-rl;
  text-orientation: upright;
  letter-spacing: 6px;
  text-shadow: 0 0 12px rgba(245,239,224,0.9), 0 1px 2px rgba(0,0,0,0.25);
}
.art .corner-seal {
  position: absolute;
  top: 10px; right: 10px;
  width: 30px; height: 30px;
  background: var(--cinnabar);
  color: #fff;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  writing-mode: horizontal-tb;
}
.card-body { padding: 12px 14px 14px; }
.card-title { font-size: 17px; letter-spacing: 1px; }
.card-meta { font-size: 13px; color: var(--ink-soft); margin-top: 4px; }
.card-script {
  display: inline-block;
  margin-top: 8px;
  font-size: 12px;
  padding: 2px 8px;
  background: var(--paper-dark);
  border-radius: 3px;
  color: var(--ink-soft);
}
.fav-btn {
  position: absolute;
  top: 10px; left: 10px;
  width: 34px; height: 34px;
  border: none;
  border-radius: 50%;
  background: rgba(255,255,255,0.85);
  color: var(--ink-soft);
  font-size: 18px;
  cursor: pointer;
  line-height: 1;
  transition: all .2s;
}
.fav-btn:hover { background: #fff; }
.fav-btn.on { color: var(--cinnabar); }

/* ---------- 书家列表 ---------- */
.dynasty-group { margin-bottom: 30px; }
.dynasty-label {
  font-size: 16px;
  letter-spacing: 3px;
  color: var(--cinnabar);
  border-bottom: 1px dashed var(--line);
  padding-bottom: 6px;
  margin-bottom: 14px;
}
.master-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.master-card {
  background: #fffdf8;
  border: 1px solid var(--line);
  border-left: 4px solid var(--jade);
  border-radius: 6px;
  padding: 14px 16px;
  cursor: pointer;
  transition: all .2s;
}
.master-card:hover { box-shadow: 0 6px 18px var(--shadow); transform: translateY(-3px); }
.master-name { font-size: 19px; letter-spacing: 2px; }
.master-years { font-size: 12px; color: var(--ink-soft); }
.master-bio {
  font-size: 13px;
  color: var(--ink-soft);
  margin-top: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- 弹窗 ---------- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(31,27,24,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}
.modal-overlay[hidden] { display: none; }
.modal {
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 8px;
  max-width: 560px;
  width: 100%;
  max-height: 86vh;
  overflow-y: auto;
  padding: 26px 28px;
  position: relative;
}
.modal-close {
  position: absolute;
  top: 12px; right: 14px;
  background: none; border: none;
  font-size: 22px; cursor: pointer;
  color: var(--ink-soft);
}
.modal-art {
  height: 280px;
  display: flex; align-items: center; justify-content: center;
  background-color: #fffdf8;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border: 1px solid var(--line);
  border-radius: 6px;
  margin-bottom: 16px;
  position: relative;
}
.modal-art::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at center,
    rgba(245,239,224,0.5) 0%, rgba(245,239,224,0.2) 60%, rgba(245,239,224,0.04) 100%);
  border-radius: 6px;
  pointer-events: none;
}
.modal-art .art-char {
  font-size: 120px;
  letter-spacing: 8px;
}
.modal h2 { font-size: 24px; letter-spacing: 2px; margin-bottom: 4px; }
.modal .meta { color: var(--ink-soft); font-size: 14px; margin-bottom: 12px; }
.modal .desc { font-size: 15px; line-height: 1.9; margin-bottom: 16px; }
.modal .keywords { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; }
.modal .keywords span {
  font-size: 12px; padding: 3px 9px;
  background: var(--paper-dark); border-radius: 3px; color: var(--ink-soft);
}
.modal-actions { display: flex; gap: 10px; }
.btn {
  font-family: var(--serif);
  font-size: 15px;
  padding: 9px 18px;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid var(--ink);
  background: #fffdf8;
  color: var(--ink);
  transition: all .2s;
}
.btn.primary { background: var(--cinnabar); color: #fff; border-color: var(--cinnabar); }
.btn.primary.off { background: #fffdf8; color: var(--ink); }

/* ---------- 页脚 ---------- */
.site-footer {
  text-align: center;
  padding: 20px;
  font-size: 13px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  background: var(--paper-dark);
}

/* ---------- 响应式 ---------- */
@media (max-width: 720px) {
  .site-header { padding: 12px 16px; }
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    background: var(--paper);
    border-bottom: 2px solid var(--ink);
    padding: 8px 16px 14px;
    gap: 4px;
  }
  .main-nav.open { display: flex; }
  .toolbar { padding: 14px 16px 6px; }
  .content { padding: 14px 16px 36px; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; }
  .art { height: 150px; }
  .art-char { font-size: 54px; letter-spacing: 4px; }
  .gallery-hero { height: 150px; }
  .hero-caption { font-size: 13px; padding-left: 14px; }
  .modal-art { height: 200px; }
  .modal-art .art-char { font-size: 84px; }
  .brand-text h1 { font-size: 20px; }
}

/* ---------- 五体科普页 / 品牌页 / 详情范本 ---------- */
.toolbar.hidden { display: none; }
.lead { color: var(--ink-soft); margin-bottom: 22px; font-size: 15px; line-height: 1.9; }
.script-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.script-card {
  background: #fffdf8;
  border: 1px solid var(--line);
  border-radius: 6px;
  border-top: 4px solid var(--cinnabar);
  padding: 18px 20px;
}
.script-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.script-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  background: var(--ink); color: var(--paper);
  font-size: 20px; border-radius: 4px;
}
.script-head h3 { font-size: 21px; letter-spacing: 3px; }
.script-row { margin-bottom: 12px; }
.script-row b {
  display: inline-block; color: var(--cinnabar);
  font-size: 13px; letter-spacing: 2px; margin-bottom: 3px;
}
.script-row p { font-size: 14px; line-height: 1.85; color: var(--ink-soft); }

.about-page { max-width: 780px; }
.about-tagline { font-size: 18px; color: var(--cinnabar); letter-spacing: 2px; margin-bottom: 20px; }
.about-block { margin-bottom: 24px; }
.about-block h3 {
  font-size: 17px; letter-spacing: 3px;
  border-left: 4px solid var(--jade); padding-left: 10px; margin-bottom: 10px;
}
.about-block p { font-size: 15px; line-height: 1.95; }
.about-list li { font-size: 15px; line-height: 1.95; margin-left: 22px; list-style: "· "; }
.about-note { background: var(--paper-dark); border-radius: 6px; padding: 16px 18px; }
.about-note p { font-style: italic; color: var(--ink-soft); }

.model {
  font-size: 13px; color: var(--jade);
  background: rgba(91,117,83,0.1);
  border-left: 3px solid var(--jade);
  padding: 8px 12px; border-radius: 3px; margin-bottom: 14px;
}

/* ---------- 古代碑帖：类别筛选标签 ---------- */
.cat-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.cat-tab {
  font-family: var(--serif);
  font-size: 14px; padding: 6px 16px;
  border: 1px solid var(--line); border-radius: 20px;
  background: #fffdf8; color: var(--ink-soft); cursor: pointer;
  transition: all .2s;
}
.cat-tab:hover { border-color: var(--ink); }
.cat-tab.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* 卡片类别角标 */
.card-cat {
  display: inline-block;
  font-size: 11px; padding: 2px 8px;
  border-radius: 3px; margin-top: 6px;
  letter-spacing: 1px;
}
.cat-beike { background: rgba(158,43,37,0.12); color: var(--cinnabar); }
.cat-keite { background: rgba(91,117,83,0.14); color: var(--jade); }
.cat-moji  { background: rgba(31,27,24,0.08); color: var(--ink-soft); }

/* ---------- 作品赏析板块 ---------- */
.appr-list { display: flex; flex-direction: column; gap: 22px; }
.appr-card {
  display: flex; gap: 22px;
  background: #fffdf8; border: 1px solid var(--line);
  border-radius: 8px; padding: 18px 20px; cursor: pointer;
  transition: box-shadow .2s, transform .2s;
}
.appr-card:hover { box-shadow: 0 6px 18px var(--shadow); transform: translateY(-2px); }
.appr-art {
  flex: 0 0 140px; height: 180px;
  background-color: #fffdf8; background-size: cover; background-position: center;
  border: 1px solid var(--line); border-radius: 6px;
  display: flex; align-items: center; justify-content: center; position: relative;
}
.appr-art::before {
  content: ""; position: absolute; inset: 0; border-radius: 6px;
  background: radial-gradient(ellipse at center,
    rgba(245,239,224,0.55) 0%, rgba(245,239,224,0.25) 60%, rgba(245,239,224,0.05) 100%);
}
.appr-art .art-char { font-size: 64px; letter-spacing: 6px; }
.appr-body { flex: 1; }
.appr-head { font-size: 20px; letter-spacing: 2px; margin-bottom: 10px; }
.appr-sub { font-size: 13px; color: var(--ink-soft); letter-spacing: 0; font-weight: normal; }
.appr-row { margin-bottom: 9px; }
.appr-row b {
  display: inline-block; color: var(--cinnabar);
  font-size: 13px; letter-spacing: 2px; margin-right: 8px;
}
.appr-row p { display: inline; font-size: 14.5px; line-height: 1.9; color: var(--ink); }

/* ---------- 上传作品表单 ---------- */
.upload-form {
  max-width: 680px;
  background: #fffdf8; border: 1px solid var(--line);
  border-top: 4px solid var(--cinnabar);
  border-radius: 8px; padding: 22px 24px;
}
.field { margin-bottom: 15px; }
.field label { display: block; font-size: 14px; letter-spacing: 1px; margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; font-family: var(--serif);
  font-size: 15px; padding: 9px 12px;
  border: 1px solid var(--line); border-radius: 4px;
  background: var(--paper); color: var(--ink);
  box-sizing: border-box;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--cinnabar);
}
.hint { display: block; font-size: 12px; color: var(--ink-soft); margin-top: 5px; }
.hint.req { color: var(--cinnabar); }
.req-mark { color: var(--cinnabar); font-weight: bold; }
.form-msg { font-size: 13.5px; min-height: 18px; margin-bottom: 10px; }
.form-msg.err { color: var(--cinnabar); }
.form-msg.ok { color: var(--jade); }
.form-actions { display: flex; gap: 12px; margin-top: 6px; }

/* ---------- 弹窗内赏析区 ---------- */
.modal-appr { border-top: 1px dashed var(--line); margin: 6px 0 16px; padding-top: 12px; }
.modal-appr h3 { font-size: 15px; letter-spacing: 3px; color: var(--cinnabar); margin-bottom: 8px; }
.modal-appr .appr-row { margin-bottom: 7px; }
.modal-appr .appr-row p { font-size: 14px; }

/* ---------- 响应式补充 ---------- */
@media (max-width: 720px) {
  .appr-card { flex-direction: column; gap: 14px; }
  .appr-art { flex: none; width: 100%; height: 160px; }
  .appr-art .art-char { font-size: 56px; }
  .upload-form { padding: 18px 16px; }
  .cat-tabs { gap: 6px; }
  .cat-tab { font-size: 13px; padding: 5px 12px; }
}

/* ============================================================
 * 弹窗「清晰字帖图片」模式：
 * 高清字帖图（毛笔书法渲染）铺满展示区，加载失败回退 CSS 大字
 * ============================================================ */
.modal-art.img-mode {
  background-image: none !important;
  background-color: var(--paper2, #fbf7ee);
  padding: 0;
  height: auto;
  display: block;
  line-height: 0;
}
.modal-art.img-mode img {
  display: block;
  width: 100%;
  max-height: 62vh;
  object-fit: contain;
  margin: 0 auto;
  border-radius: 6px;
}
.modal-art.img-mode .art-char { display: none; }

/* ============================================================
 * 中央印记图标（页眉 / 页脚 / 斋主页共用）
 * ============================================================ */
.brand-logo {
  display: inline-flex;
  align-items: center;
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
}
.brand-logo svg { width: 100%; height: 100%; display: block; }

/* ============================================================
 * 斋主介绍板块
 * ============================================================ */
.owner-page { max-width: 920px; margin: 0 auto; }
.owner-hero {
  display: flex;
  align-items: center;
  gap: 30px;
  padding: 6px 0 26px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
}
/* 斋主照片：圆形装裱 + 朱红描边 */
.owner-photo {
  flex: 0 0 170px;
  width: 170px;
  height: 170px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--seal);
  box-shadow: 0 0 0 6px rgba(158, 43, 37, 0.12), 0 4px 14px rgba(31, 27, 24, 0.16);
  background: var(--paper);
}
.owner-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  display: block;
}
.owner-logo { flex: 0 0 150px; width: 150px; }
.owner-logo svg {
  width: 100%; height: auto; display: block;
  filter: drop-shadow(0 2px 6px rgba(31,27,24,0.12));
}
.owner-title { color: var(--cinnabar); letter-spacing: 4px; font-size: 14px; }
.owner-name { font-size: 34px; letter-spacing: 8px; margin: 4px 0 6px; }
.owner-origin { color: var(--ink-soft); font-size: 15px; letter-spacing: 1px; }
.owner-specs { margin-top: 12px; display: flex; gap: 8px; flex-wrap: wrap; }
.spec-chip {
  font-size: 13px; padding: 3px 13px;
  border: 1px solid var(--cinnabar); color: var(--cinnabar);
  border-radius: 20px; letter-spacing: 1px;
}

/* 图片 + 扫码 呈现 */
.scan-block { display: flex; gap: 24px; align-items: stretch; margin-bottom: 30px; }
.scan-figure {
  flex: 1; margin: 0;
  border: 1px solid var(--line); border-radius: 8px;
  overflow: hidden; background: #fffdf8;
}
.scan-figure img { width: 100%; height: 100%; max-height: 260px; object-fit: cover; display: block; }
.scan-figure figcaption {
  text-align: center; font-size: 13px; color: var(--ink-soft);
  padding: 8px; border-top: 1px solid var(--line); letter-spacing: 1px;
}
.scan-qr {
  flex: 0 0 200px;
  background: #fffdf8; border: 1px solid var(--line); border-radius: 8px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px; padding: 18px;
}
.scan-qr img { width: 138px; height: 138px; display: block; }
.scan-qr span { font-size: 14px; letter-spacing: 1px; }
.scan-qr small { color: var(--ink-soft); font-size: 12px; }

.owner-bio { margin-bottom: 30px; }
.owner-bio p { font-size: 15.5px; line-height: 1.95; margin-bottom: 14px; }
.owner-sub {
  font-size: 17px; letter-spacing: 3px; color: var(--cinnabar);
  border-left: 4px solid var(--jade); padding-left: 10px; margin: 6px 0 14px;
}
.owner-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 22px; }
.owner-list { list-style: none; }
.owner-list li { font-size: 14px; line-height: 1.95; padding-left: 16px; position: relative; }
.owner-list li::before { content: "·"; position: absolute; left: 2px; color: var(--cinnabar); }
.owner-source {
  font-size: 12.5px; color: var(--ink-soft); font-style: italic;
  border-top: 1px dashed var(--line); padding-top: 14px;
}

/* ============================================================
 * 优秀作品展示（showcase）
 * ============================================================ */
.upload-card {
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: 8px;
  padding: 14px 18px 18px;
  margin-bottom: 26px;
  box-shadow: 0 2px 8px rgba(31, 27, 24, 0.05);
}
.upload-card > summary {
  cursor: pointer; font-size: 15px; font-weight: 600; color: var(--cinnabar);
  list-style: none; padding: 4px 0;
}
.upload-card > summary::-webkit-details-marker { display: none; }
.upload-card[open] > summary { margin-bottom: 12px; }
.upload-pic input[type="file"] { margin-bottom: 8px; }
.upload-pic input[name="image"] { margin-top: 2px; }

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 18px;
}
.show-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
}
.show-card:hover { transform: translateY(-3px); box-shadow: 0 6px 18px rgba(31, 27, 24, 0.14); }
.show-thumb { height: 168px; background: #ece3d2; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.show-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.show-noimg {
  font-family: var(--kai); font-size: 56px; color: var(--cinnabar);
}
.show-noimg.big { font-size: 120px; }
.show-body { padding: 12px 14px 14px; }
.show-title { font-size: 15.5px; margin: 0 0 8px; font-weight: 600; line-height: 1.4; }
.show-meta { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink-soft); }
.show-time { font-size: 12px; color: var(--ink-soft); opacity: .8; margin-top: 6px; }
.role-badge {
  font-size: 11.5px; padding: 1px 8px; border-radius: 10px;
  background: var(--paper-dark); color: var(--ink-soft);
}
.role-badge.role-admin { background: #efe0dc; color: #9e2b25; }
.role-badge.role-teacher { background: #e3ece4; color: #3f6b48; }
.show-detail-img {
  background: #ece3d2; border-radius: 6px; padding: 14px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
  max-height: 60vh; overflow: hidden;
}
.show-detail-img img { max-width: 100%; max-height: 56vh; display: block; object-fit: contain; }

@media (max-width: 720px) {
  .showcase-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
  .show-thumb { height: 130px; }
  .upload-card { padding: 12px 14px 14px; }
}

/* ============================================================
 * 页脚 + 扫码
 * ============================================================ */
.site-footer { background: var(--paper-dark); border-top: 1px solid var(--line); padding: 22px 28px; }
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  max-width: 1040px; margin: 0 auto; gap: 24px; flex-wrap: wrap;
}
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand .brand-logo { width: 40px; height: 40px; flex: 0 0 40px; }
.footer-slogan { font-size: 13px; color: var(--ink-soft); }
.footer-qr { text-align: center; }
.footer-qr img {
  width: 80px; height: 80px; display: block;
  background: #fff; padding: 4px; border-radius: 6px; border: 1px solid var(--line);
}
.footer-qr span { display: block; font-size: 12px; color: var(--ink-soft); margin-top: 4px; }
.footer-copy { text-align: center; font-size: 12px; color: var(--ink-soft); margin-top: 14px; letter-spacing: 1px; }

/* ============================================================
 * 斋主页 / 页脚 响应式
 * ============================================================ */
@media (max-width: 720px) {
  .owner-hero { flex-direction: column; text-align: center; gap: 16px; }
  .owner-photo { width: 132px; height: 132px; flex: 0 0 132px; }
  .owner-logo { width: 118px; flex: none; }
  .owner-specs { justify-content: center; }
  .scan-block { flex-direction: column; }
  .scan-qr { flex: none; }
  .owner-cols { grid-template-columns: 1fr; gap: 18px; }
  .footer-inner { flex-direction: column; text-align: center; }
}

/* ============================================================
 * 作品赏析（掌上碑帖式）增强样式
 * ============================================================ */
.appr-thumb {
  position: relative; width: 100%; height: 188px; overflow: hidden;
  background: var(--paper2) center/cover no-repeat;
  border-bottom: 1px solid var(--line);
}
.appr-thumb img { width: 100%; height: 100%; object-fit: contain; background: var(--paper2); }
.appr-thumb.noimg { display: flex; align-items: center; justify-content: center; }
.appr-thumb.noimg::after { content: "原帖图"; color: var(--ink-soft); font-size: 14px; letter-spacing: 2px; }
.appr-cat {
  position: absolute; top: 10px; right: 10px;
  font-size: 12px; padding: 2px 9px; border-radius: 12px; color: #fff;
  background: rgba(31,27,24,.55);
}
.appr-cat.cat-beike { background: #6b5740; }
.appr-cat.cat-keite { background: #3f5d63; }
.appr-cat.cat-moji  { background: var(--seal); }
.appr-actions { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.appr-actions .btn { font-size: 13px; padding: 6px 12px; }

/* 详析弹窗 */
.appr-detail-head { margin-bottom: 14px; }
.appr-detail-head h2 { font-family: "Ma Shan Zheng","KaiTi",serif; font-weight: normal; font-size: 30px; margin: 0; letter-spacing: 2px; }
.zoom-wrap {
  position: relative; text-align: center; background: var(--paper2);
  border: 1px solid var(--line); border-radius: 6px; padding: 10px; margin-bottom: 16px;
  overflow: hidden;
}
.appr-zoom { max-width: 100%; max-height: 56vh; cursor: zoom-in; transition: transform .2s ease; border-radius: 2px; }
.appr-zoom.zoomed { transform: scale(1.9); cursor: zoom-out; transform-origin: center center; }
.zoom-wrap.noimg { min-height: 120px; }
.zoom-hint { display: block; font-size: 12px; color: var(--ink-soft); margin-top: 6px; letter-spacing: 1px; }

/* 释文逐字 */
.transcription {
  display: flex; flex-wrap: wrap; gap: 2px 0; margin-top: 6px;
  font-family: "KaiTi","STKaiti",serif; font-size: 19px; line-height: 1.5; color: var(--ink);
  max-height: 132px; overflow: auto; padding: 4px; background: var(--paper2); border: 1px solid var(--line); border-radius: 4px;
}
.tchar { padding: 1px 3px; }

/* 章法 / 墨色 / 题跋 / 印章 */
.detail-block { margin: 6px 0 12px; }
.detail-row { display: flex; gap: 12px; padding: 8px 0; border-bottom: 1px dashed var(--line); }
.detail-k { flex: 0 0 76px; color: var(--seal); font-weight: 600; letter-spacing: 1px; }
.detail-v { flex: 1; font-size: 14.5px; line-height: 1.8; color: var(--ink); }
.appr-analysis { margin: 4px 0 2px; }
.appr-analysis .detail-row:first-child { border-top: 1px dashed var(--line); }
.appr-analysis .detail-k { flex: 0 0 92px; }

/* 对比托盘 + 并置对比 */
.compare-bar {
  position: fixed; left: 50%; bottom: 18px; transform: translateX(-50%);
  display: flex; align-items: center; gap: 10px; z-index: 60;
  background: rgba(26,22,20,.92); color: #f5efe0; padding: 10px 14px; border-radius: 30px;
  box-shadow: 0 6px 20px var(--shadow); font-size: 14px; max-width: 92vw; flex-wrap: wrap;
}
.compare-bar .cmp-label { color: #f0c9a0; letter-spacing: 1px; }
.cmp-chip { background: rgba(255,255,255,.12); padding: 4px 10px; border-radius: 14px; letter-spacing: 1px; cursor: pointer; }
.cmp-chip i { cursor: pointer; opacity: .7; margin-left: 4px; font-style: normal; }
.cmp-chip i:hover { opacity: 1; color: #ffb4a0; }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.cmp-item { text-align: center; }
.cmp-img { background: var(--paper2); border: 1px solid var(--line); border-radius: 6px; padding: 8px; }
.cmp-img img { width: 100%; max-height: 46vh; object-fit: contain; }
.cmp-img.noimg::after { content: "原帖图"; color: var(--ink-soft); }
.cmp-item h3 { font-family: "Ma Shan Zheng","KaiTi",serif; font-weight: normal; font-size: 22px; margin: 10px 0 4px; }
.cmp-note { font-size: 14px; color: var(--ink-soft); line-height: 1.8; margin: 6px 0 10px; text-align: left; }

/* 轻提示 toast */
.toast {
  position: fixed; left: 50%; top: 22%; transform: translateX(-50%) translateY(-8px);
  background: rgba(26,22,20,.92); color: #f5efe0; padding: 10px 18px; border-radius: 8px;
  font-size: 14px; letter-spacing: 1px; z-index: 80; opacity: 0; pointer-events: none;
  transition: opacity .2s, transform .2s; box-shadow: 0 6px 18px var(--shadow);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 600px) {
  .compare-grid { grid-template-columns: 1fr; }
  .appr-zoom.zoomed { transform: scale(1.5); }
}

/* ============================================================
 * 作品赏析 · 碑帖式阅读器（掌上碑帖范式）
 * ============================================================ */
.appr-tabs { display: flex; gap: 4px; margin: 4px 0 14px; border-bottom: 1px solid var(--line); }
.atab {
  font-family: var(--serif); font-size: 15px; letter-spacing: 1px;
  padding: 8px 14px; background: none; border: none;
  border-bottom: 2px solid transparent; color: var(--ink-soft); cursor: pointer;
}
.atab.on { color: var(--cinnabar); border-bottom-color: var(--cinnabar); }
.atab:disabled { opacity: .4; cursor: not-allowed; }
.atab-panel { display: none; }
.atab-panel.on { display: block; }

/* 高清查看器：缩放 + 拖拽平移 + 辅助线 */
.viewer {
  position: relative; overflow: auto; max-height: 52vh;
  border: 1px solid var(--line); border-radius: 6px;
  background: var(--paper2); cursor: grab; touch-action: pan-y;
}
.viewer.grabbing { cursor: grabbing; }
.viewer-stage { position: relative; width: 100%; }
.viewer-img { display: block; width: 100%; height: auto; }
.viewer-grid { position: absolute; inset: 0; pointer-events: none; }
.viewer-grid.grid-none { background: none; }
.viewer-grid.grid-tian {
  background:
    linear-gradient(var(--grid-c), var(--grid-c)) center / 1px 100% no-repeat,
    linear-gradient(var(--grid-c), var(--grid-c)) center / 100% 1px no-repeat;
}
.viewer-grid.grid-mi {
  background:
    linear-gradient(var(--grid-c), var(--grid-c)) center / 1px 100% no-repeat,
    linear-gradient(var(--grid-c), var(--grid-c)) center / 100% 1px no-repeat,
    linear-gradient(to bottom right, transparent calc(50% - .5px), var(--grid-c), transparent calc(50% + .5px)),
    linear-gradient(to bottom left, transparent calc(50% - .5px), var(--grid-c), transparent calc(50% + .5px));
}
:root { --grid-c: rgba(158,43,37,.5); }
.viewer-bar { display: flex; align-items: center; gap: 8px; margin: 8px 0 4px; flex-wrap: wrap; }
.vbtn { width: 30px; height: 30px; border: 1px solid var(--ink); background: #fffdf8; border-radius: 4px; cursor: pointer; font-size: 16px; line-height: 1; }
.zoom-label { font-size: 13px; color: var(--ink-soft); min-width: 44px; text-align: center; }
.grid-seg { display: inline-flex; gap: 4px; margin-left: auto; }
.gbtn { font-size: 13px; padding: 5px 10px; border: 1px solid var(--line); background: #fffdf8; border-radius: 4px; cursor: pointer; color: var(--ink-soft); }
.gbtn.on { color: #fff; background: var(--cinnabar); border-color: var(--cinnabar); }

/* 单字卡 */
.charcards { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0; }
.charcard {
  width: 42px; height: 42px; font-family: "KaiTi","STKaiti",serif; font-size: 22px;
  border: 1px solid var(--line); background: #fffdf8; border-radius: 6px; cursor: pointer; color: var(--ink);
}
.charcard:hover { border-color: var(--cinnabar); }
.char-current { font-size: 14px; color: var(--seal); margin: 8px 0 4px; }
.transcription.wide { max-height: none; }

/* 临摹：描红 / 对临 */
.trace-tools { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; flex-wrap: wrap; }
.trace-h { font-size: 15px; color: var(--seal); margin: 14px 0 4px; letter-spacing: 1px; font-weight: 600; }
.trace-sheet {
  position: relative; width: 100%; aspect-ratio: 860 / 1160;
  background: var(--paper2); border: 1px solid var(--line); border-radius: 6px; overflow: hidden; margin: 8px 0 18px;
}
.trace-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .22; }
.trace-thumb {
  position: absolute; right: 8px; bottom: 8px; width: 30%;
  border: 1px solid var(--line); box-shadow: 0 2px 6px var(--shadow); background: #fff;
}
.empty-tip { color: var(--ink-soft); font-size: 14px; padding: 6px 0; }

/* 打印：仅输出临摹底图（描红 + 对临） */
@media print {
  body * { visibility: hidden !important; }
  .trace-sheet, .trace-sheet * { visibility: visible !important; }
  .modal-overlay { position: absolute; inset: 0; background: #fff; display: block !important; padding: 0; }
  .modal { box-shadow: none; border: none; max-width: none; max-height: none; overflow: visible; padding: 0; }
  .trace-sheet { position: absolute; left: 0; top: 0; width: 100%; margin: 0 0 20px; }
}