/* 国学阅读站 - 参考中华典藏网风格 */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;600;700&display=swap');

:root {
  --gx-bg: #f7f3eb;
  --gx-paper: #fffcf5;
  --gx-primary: #8b4513;
  --gx-primary-dark: #6b3410;
  --gx-accent: #c9a227;
  --gx-text: #333;
  --gx-text-muted: #777;
  --gx-border: #e8dcc8;
  --gx-shadow: 0 2px 12px rgba(139, 69, 19, 0.08);
  --gx-radius: 6px;
  --gx-max-width: 1200px;
  --gx-font-serif: 'Noto Serif SC', 'Songti SC', 'SimSun', serif;
  --gx-font-sans: -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--gx-font-sans);
  font-size: 14px;
  line-height: 1.7;
  color: var(--gx-text);
  background: var(--gx-bg);
  min-height: 100vh;
}

a { color: var(--gx-primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--gx-accent); }

img { max-width: 100%; height: auto; border: 0; }

/* ========== 布局 ========== */
.gx-wrap { max-width: var(--gx-max-width); margin: 0 auto; padding: 0 16px; }

/* ========== 顶栏 ========== */
.gx-topbar {
  background: var(--gx-primary-dark);
  color: rgba(255,255,255,.85);
  font-size: 12px;
  padding: 6px 0;
}
.gx-topbar a { color: rgba(255,255,255,.85); }
.gx-topbar a:hover { color: #fff; }
.gx-topbar-inner { display: flex; justify-content: space-between; align-items: center; }

/* ========== 头部 ========== */
.gx-header {
  background: var(--gx-paper);
  border-bottom: 2px solid var(--gx-border);
  padding: 16px 0;
  box-shadow: var(--gx-shadow);
}
.gx-header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.gx-logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.gx-logo-icon {
  width: 52px; height: 52px;
  background: linear-gradient(145deg, #6b3410 0%, #8b4513 55%, #c9a227 100%);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-family: var(--gx-font-serif); font-size: 22px; font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.22), 0 2px 8px rgba(107,52,16,.22);
  letter-spacing: 0;
}
.gx-logo-text h1 {
  font-family: var(--gx-font-serif);
  font-size: 24px;
  color: var(--gx-primary-dark);
  font-weight: 700;
  letter-spacing: 2px;
}
.gx-logo-text p { font-size: 12px; color: var(--gx-text-muted); }

/* ========== 搜索 ========== */
.gx-search { flex: 1; min-width: 280px; max-width: 480px; }
.gx-search-form { display: flex; border: 1px solid var(--gx-border); border-radius: var(--gx-radius); overflow: hidden; background: #fff; }
.gx-search-form select {
  border: none; background: #faf6ee; padding: 0 10px; font-size: 13px;
  border-right: 1px solid var(--gx-border); outline: none;
}
.gx-search-form input[type="text"] {
  flex: 1; border: none; padding: 10px 14px; font-size: 14px; outline: none;
}
.gx-search-form button {
  background: var(--gx-primary); color: #fff; border: none;
  padding: 0 20px; cursor: pointer; font-size: 14px;
}
.gx-search-form button:hover { background: var(--gx-primary-dark); }

/* ========== 导航 ========== */
.gx-nav {
  background: var(--gx-primary);
  position: sticky; top: 0; z-index: 100;
}
.gx-nav ul {
  display: flex; flex-wrap: wrap; list-style: none;
}
.gx-nav li a {
  display: block; padding: 12px 18px;
  color: rgba(255,255,255,.9); font-size: 15px;
  font-family: var(--gx-font-serif);
  border-bottom: 3px solid transparent;
}
.gx-nav li a:hover,
.gx-nav li.active a {
  background: rgba(0,0,0,.15);
  color: #fff;
  border-bottom-color: var(--gx-accent);
}

/* 移动端菜单按钮（桌面隐藏） */
.gx-nav-toggle {
  display: none;
  width: 42px; height: 42px;
  margin-left: auto;
  border: 1px solid var(--gx-border);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
}
.gx-nav-toggle span {
  display: block; width: 18px; height: 2px;
  background: var(--gx-primary-dark);
  border-radius: 1px;
  transition: transform .2s, opacity .2s;
}
.gx-nav-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.gx-nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.gx-nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ========== 快捷入口 ========== */
.gx-quick-links {
  display: flex; gap: 12px; flex-wrap: wrap;
  padding: 12px 0;
  border-bottom: 1px dashed var(--gx-border);
  margin-bottom: 20px;
}
.gx-quick-links a {
  padding: 4px 12px; background: var(--gx-paper);
  border: 1px solid var(--gx-border); border-radius: 20px;
  font-size: 13px;
}
.gx-quick-links a:hover { background: var(--gx-primary); color: #fff; border-color: var(--gx-primary); }

/* ========== 区块标题 ========== */
.gx-section { margin-bottom: 28px; }
.gx-section-head {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: 10px; margin-bottom: 16px;
  border-bottom: 2px solid var(--gx-primary);
}
.gx-section-head h2 {
  font-family: var(--gx-font-serif);
  font-size: 18px; color: var(--gx-primary-dark);
  padding-left: 10px; border-left: 4px solid var(--gx-accent);
}
.gx-section-head a { font-size: 13px; color: var(--gx-text-muted); }
.gx-section-head a:hover { color: var(--gx-primary); }

/* ========== 首页网格 ========== */
.gx-home-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 24px;
  padding: 24px 0;
}
@media (max-width: 900px) {
  .gx-home-grid { grid-template-columns: 1fr; }
}

/* ========== 书籍卡片 ========== */
.gx-book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}
.gx-book-card {
  background: var(--gx-paper);
  border: 1px solid var(--gx-border);
  border-radius: var(--gx-radius);
  overflow: hidden;
  transition: transform .2s, box-shadow .2s;
}
.gx-book-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--gx-shadow);
}
.gx-book-cover {
  height: 200px; background: #f0e8d8;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.gx-book-cover img { width: 100%; height: 100%; object-fit: cover; }
.gx-book-cover .gx-placeholder {
  font-family: var(--gx-font-serif);
  font-size: 28px; color: var(--gx-primary);
  writing-mode: vertical-rl; letter-spacing: 4px;
}
.gx-book-info { padding: 12px; }
.gx-book-info h3 {
  font-family: var(--gx-font-serif);
  font-size: 15px; margin-bottom: 6px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.gx-book-info p {
  font-size: 12px; color: var(--gx-text-muted);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

/* ========== 列表页 ========== */
.gx-main { padding: 24px 0; }
.gx-breadcrumb {
  font-size: 13px; color: var(--gx-text-muted);
  padding: 12px 0; margin-bottom: 16px;
  border-bottom: 1px dashed var(--gx-border);
}
.gx-list-layout { display: grid; grid-template-columns: 1fr 280px; gap: 24px; }
@media (max-width: 768px) { .gx-list-layout { grid-template-columns: 1fr; } }

.gx-book-list { list-style: none; }
.gx-book-list li {
  padding: 14px 0; border-bottom: 1px dashed var(--gx-border);
  display: flex; gap: 16px; align-items: flex-start;
}
.gx-book-list .gx-list-cover {
  width: 80px; height: 110px; flex-shrink: 0;
  background: #f0e8d8; border-radius: 4px; overflow: hidden;
}
.gx-book-list .gx-list-cover img { width: 100%; height: 100%; object-fit: cover; }
.gx-book-list h3 { font-family: var(--gx-font-serif); font-size: 16px; margin-bottom: 6px; }
.gx-book-list .gx-meta { font-size: 12px; color: var(--gx-text-muted); margin-bottom: 4px; }
.gx-book-list .gx-desc { font-size: 13px; color: #555; }

/* 栏目封面：书籍网格 */
.gx-channel-desc {
  color: var(--gx-text-muted); font-size: 14px; line-height: 1.8;
  margin: 8px 0 20px; max-width: 48em;
}
.gx-book-meta { display: inline-block; margin-top: 8px; font-size: 12px; color: var(--gx-text-muted); }

/* 书籍页：简介 + 章节目录 */
.gx-book-hero {
  background: var(--gx-paper);
  border: 1px solid var(--gx-border);
  border-radius: var(--gx-radius);
  padding: 24px 28px;
  margin-bottom: 24px;
}
.gx-book-hero-with-cover {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}
.gx-book-cover-lg {
  flex-shrink: 0;
  width: 160px;
  height: 220px;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(107, 52, 16, 0.18);
  background: #f0e8d8;
}
.gx-book-cover-lg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.gx-book-cover-lg .gx-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--gx-font-serif);
  font-size: 22px;
  color: var(--gx-primary);
  writing-mode: vertical-rl;
  letter-spacing: 4px;
}
.gx-book-hero h1 {
  font-family: var(--gx-font-serif);
  font-size: 28px; color: var(--gx-primary-dark); margin-bottom: 12px;
}
.gx-book-count { font-size: 13px; color: var(--gx-text-muted); margin-top: 12px; }
.gx-book-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}
.gx-btn-read {
  background: #2f6fed !important;
}
.gx-btn-read:hover { background: #2458c4 !important; }
.gx-btn-txt {
  background: #e67e22 !important;
}
.gx-btn-txt:hover { background: #c96812 !important; }
.gx-btn-shelf {
  background: #27ae60 !important;
}
.gx-btn-shelf:hover { background: #1e8a4b !important; }
@media (max-width: 640px) {
  .gx-book-hero-with-cover { flex-direction: column; align-items: center; text-align: center; }
  .gx-book-actions { justify-content: center; }
  .gx-book-cover-lg { width: 140px; height: 192px; }
}

.gx-chapter-list {
  list-style: none; counter-reset: chapter;
  border: 1px solid var(--gx-border);
  border-radius: var(--gx-radius);
  background: var(--gx-paper);
  overflow: hidden;
}
.gx-chapter-list li {
  border-bottom: 1px dashed var(--gx-border);
  counter-increment: chapter;
}
.gx-chapter-list li:last-child { border-bottom: none; }
.gx-chapter-list a {
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; padding: 12px 16px; color: var(--gx-text);
}
.gx-chapter-list a:hover {
  background: #f5efe4; color: var(--gx-primary);
}
.gx-chapter-title {
  font-family: var(--gx-font-serif); font-size: 15px;
  flex: 1; min-width: 0;
}
.gx-chapter-title::before {
  content: counter(chapter, chinese-informal) "、";
  color: var(--gx-accent); margin-right: 4px;
}
.gx-chapter-date { font-size: 12px; color: var(--gx-text-muted); flex-shrink: 0; }
@media (max-width: 640px) {
  .gx-chapter-date { display: none; }
  .gx-book-hero h1 { font-size: 22px; }
}

/* ========== 侧边栏 ========== */
.gx-sidebar .gx-widget {
  background: var(--gx-paper);
  border: 1px solid var(--gx-border);
  border-radius: var(--gx-radius);
  margin-bottom: 20px; overflow: hidden;
}
.gx-widget-title {
  background: linear-gradient(to right, var(--gx-primary), var(--gx-primary-dark));
  color: #fff; padding: 10px 14px;
  font-family: var(--gx-font-serif); font-size: 15px;
}
.gx-widget-body { padding: 12px 14px; }
.gx-widget-body ol { padding-left: 20px; }
.gx-widget-body ol li { padding: 4px 0; }
.gx-widget-body ul { list-style: none; }
.gx-widget-body ul li { padding: 5px 0; border-bottom: 1px dotted var(--gx-border); }
.gx-widget-body ul li:last-child { border-bottom: none; }

/* ========== 标签云 ========== */
.gx-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.gx-tag {
  display: inline-block; padding: 3px 10px;
  background: #faf6ee; border: 1px solid var(--gx-border);
  border-radius: 3px; font-size: 12px;
}
.gx-tag:hover { background: var(--gx-primary); color: #fff; border-color: var(--gx-primary); }

/* ========== 阅读页 ========== */
.gx-reader-wrap { padding: 24px 0; }
.gx-reader-toolbar {
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
  padding: 12px 16px; background: var(--gx-paper);
  border: 1px solid var(--gx-border); border-radius: var(--gx-radius);
  margin-bottom: 20px; position: sticky; top: 48px; z-index: 50;
}
.gx-reader-toolbar button {
  padding: 5px 14px; border: 1px solid var(--gx-border);
  background: #fff; border-radius: 4px; cursor: pointer; font-size: 13px;
}
.gx-reader-toolbar button:hover { background: var(--gx-primary); color: #fff; border-color: var(--gx-primary); }
.gx-reader-toolbar .gx-sep { color: var(--gx-border); }

.gx-reader {
  background: var(--gx-paper);
  border: 1px solid var(--gx-border);
  border-radius: var(--gx-radius);
  padding: 32px 48px;
  max-width: 860px; margin: 0 auto;
  box-shadow: var(--gx-shadow);
}
@media (max-width: 600px) { .gx-reader { padding: 20px 16px; } }

.gx-reader-title {
  font-family: var(--gx-font-serif);
  font-size: 26px; text-align: center;
  color: var(--gx-primary-dark);
  margin-bottom: 12px; line-height: 1.4;
}
.gx-reader-meta {
  text-align: center; font-size: 13px; color: var(--gx-text-muted);
  padding-bottom: 20px; margin-bottom: 24px;
  border-bottom: 1px solid var(--gx-border);
}
.gx-reader-content {
  font-family: var(--gx-font-serif);
  font-size: 18px; line-height: 2;
  color: #2c2c2c;
}
.gx-reader-content p { margin-bottom: 1em; text-indent: 2em; }
.gx-reader-content img {
  display: block; max-width: 100%; margin: 16px auto;
  cursor: zoom-in; border: 1px solid var(--gx-border);
  border-radius: 4px;
}

/* 字号 */
.gx-reader.fs-sm .gx-reader-content { font-size: 16px; }
.gx-reader.fs-lg .gx-reader-content { font-size: 20px; }
.gx-reader.fs-xl .gx-reader-content { font-size: 24px; }

/* 夜间模式 */
body.gx-night { background: #1a1612; color: #ccc; }
body.gx-night .gx-reader,
body.gx-night .gx-sidebar .gx-widget,
body.gx-night .gx-book-card { background: #252018; border-color: #3d3428; }
body.gx-night .gx-reader-content { color: #d4c4a8; }
body.gx-night .gx-reader-title { color: #e8d5b0; }

.gx-chapter-nav {
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px; margin-top: 32px; padding-top: 20px;
  border-top: 1px dashed var(--gx-border);
}
.gx-chapter-nav > span { flex: 1; min-width: 0; }
.gx-chapter-nav > span:last-child { text-align: right; }
.gx-chapter-nav a {
  display: inline-block; max-width: 100%;
  padding: 8px 16px; background: #faf6ee;
  border: 1px solid var(--gx-border); border-radius: 4px; font-size: 14px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.gx-reader-foot { padding: 28px 0 40px; }

/* 评论表单 */
.gx-plbox {
  background: var(--gx-paper);
  border: 1px solid var(--gx-border);
  border-radius: var(--gx-radius);
  padding: 20px 22px 22px;
}
.gx-plbox-head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px; padding-bottom: 12px;
  border-bottom: 1px dashed var(--gx-border);
  font-family: var(--gx-font-serif); font-size: 16px;
}
.gx-plbox-count { font-size: 13px; color: var(--gx-text-muted); font-family: var(--gx-font-sans); }
.gx-plform-row {
  display: flex; flex-wrap: wrap; gap: 12px 20px;
  margin-bottom: 12px; align-items: center;
}
.gx-plform-row label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--gx-text-muted);
}
.gx-plform-row input[type="text"],
.gx-plform-row input[type="password"] {
  height: 34px; padding: 0 10px;
  border: 1px solid var(--gx-border); border-radius: 4px;
  background: #fff; font-size: 14px; color: var(--gx-text);
  min-width: 140px;
}
.gx-plform-key input[type="text"] { min-width: 88px; width: 88px; }
.gx-plform-key img {
  height: 34px; width: auto; vertical-align: middle;
  border: 1px solid var(--gx-border); border-radius: 4px; cursor: pointer;
}
.gx-plform-anon { color: var(--gx-text); }
.gx-plform textarea {
  display: block; width: 100%; min-height: 120px;
  padding: 12px; margin: 4px 0 14px;
  border: 1px solid var(--gx-border); border-radius: 4px;
  background: #fff; font-size: 14px; line-height: 1.7;
  resize: vertical; font-family: inherit;
}
.gx-plform-actions { text-align: right; }
.gx-btn {
  display: inline-block; padding: 8px 22px;
  background: var(--gx-primary); color: #fff !important;
  border: none; border-radius: 4px; cursor: pointer; font-size: 14px;
}
.gx-btn:hover { background: var(--gx-primary-dark); }
@media (max-width: 640px) {
  .gx-plform-row label { width: 100%; }
  .gx-plform-row input[type="text"],
  .gx-plform-row input[type="password"] { flex: 1; min-width: 0; }
  .gx-chapter-nav { flex-direction: column; align-items: stretch; }
  .gx-chapter-nav > span,
  .gx-chapter-nav > span:last-child { text-align: center; }
}

body.gx-night .gx-plbox { background: #252018; border-color: #3d3428; }
body.gx-night .gx-plform-row input,
body.gx-night .gx-plform textarea {
  background: #1a1610; border-color: #3d3428; color: #d4c4a8;
}

/* ========== 下载页 ========== */
.gx-download-box {
  background: var(--gx-paper); border: 1px solid var(--gx-border);
  border-radius: var(--gx-radius); padding: 32px; text-align: center;
}
.gx-download-box h1 { font-family: var(--gx-font-serif); font-size: 22px; margin-bottom: 16px; }
.gx-download-info { margin: 20px 0; color: var(--gx-text-muted); }
.gx-download-btn {
  display: inline-block; padding: 12px 36px;
  background: var(--gx-primary); color: #fff !important;
  border-radius: var(--gx-radius); font-size: 16px;
}
.gx-download-btn:hover { background: var(--gx-primary-dark); }

/* ========== 分页 ========== */
.gx-pagination { text-align: center; padding: 24px 0; font-size: 14px; }
.gx-pagination a, .gx-pagination span {
  display: inline-block; padding: 6px 12px; margin: 0 2px;
  border: 1px solid var(--gx-border); border-radius: 3px;
}
.gx-pagination a:hover { background: var(--gx-primary); color: #fff; border-color: var(--gx-primary); }

/* ========== 页脚 ========== */
.gx-footer {
  background: var(--gx-primary-dark); color: rgba(255,255,255,.7);
  padding: 32px 0 20px; margin-top: 40px;
}
.gx-footer a { color: rgba(255,255,255,.8); }
.gx-footer-inner { text-align: center; }
.gx-footer-links { margin-bottom: 16px; }
.gx-footer-links a { margin: 0 12px; font-size: 13px; }
.gx-footer-copy { font-size: 12px; opacity: .7; }

/* ========== 图片灯箱 ========== */
.gx-lightbox {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.88); z-index: 9999;
  align-items: center; justify-content: center;
}
.gx-lightbox.active { display: flex; }
.gx-lightbox img { max-width: 92vw; max-height: 90vh; object-fit: contain; }
.gx-lightbox-close {
  position: absolute; top: 16px; right: 24px;
  color: #fff; font-size: 36px; cursor: pointer; line-height: 1;
}
.gx-lightbox-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  color: #fff; font-size: 48px; cursor: pointer; padding: 16px;
  user-select: none;
}
.gx-lightbox-prev { left: 12px; }
.gx-lightbox-next { right: 12px; }

/* ========== 手机端适配 ========== */
@media (max-width: 768px) {
  .gx-wrap { padding: 0 12px; }

  .gx-topbar { display: none; }

  .gx-header { padding: 10px 0; }
  .gx-header-inner {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "logo toggle"
      "search search";
    gap: 10px;
    align-items: center;
  }
  .gx-logo { grid-area: logo; gap: 8px; }
  .gx-logo-icon { width: 40px; height: 40px; font-size: 18px; }
  .gx-logo-text h1 { font-size: 18px; letter-spacing: 1px; }
  .gx-logo-text p { display: none; }
  .gx-nav-toggle { display: flex; grid-area: toggle; }
  .gx-search {
    grid-area: search;
    min-width: 0;
    max-width: none;
    width: 100%;
  }
  .gx-search-form {
    width: 100%;
  }
  .gx-search-form select {
    max-width: 78px;
    padding: 0 6px;
    font-size: 12px;
  }
  .gx-search-form input[type="text"] {
    min-width: 0;
    padding: 11px 10px;
    font-size: 15px;
  }
  .gx-search-form button {
    padding: 0 14px;
    flex-shrink: 0;
  }

  .gx-nav {
    position: sticky;
    top: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height .28s ease;
  }
  .gx-nav.is-open {
    max-height: 70vh;
    overflow-y: auto;
    box-shadow: 0 8px 20px rgba(0,0,0,.18);
  }
  .gx-nav ul {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    padding: 8px 0 12px;
  }
  .gx-nav li a {
    padding: 12px 10px;
    font-size: 14px;
    text-align: center;
    border-bottom: none;
    border-radius: 4px;
    margin: 2px 4px;
  }

  .gx-quick-links {
    display: none;
  }

  .gx-home-grid { display: block; }
  .gx-breadcrumb {
    font-size: 12px;
    padding: 8px 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .gx-section-head h2 { font-size: 18px; }
  .gx-book-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .gx-book-card h3 { font-size: 14px; }
  .gx-book-actions .gx-btn {
    flex: 1 1 calc(50% - 8px);
    text-align: center;
    padding: 10px 12px;
    font-size: 14px;
  }

  .gx-reader-toolbar {
    position: sticky;
    top: 0;
    z-index: 40;
    gap: 6px;
    padding: 8px;
    margin-bottom: 12px;
  }
  .gx-reader-toolbar button,
  .gx-reader-toolbar a button {
    min-height: 36px;
    padding: 6px 10px;
    font-size: 13px;
  }
  .gx-reader-toolbar .gx-sep { display: none; }

  .gx-reader {
    padding: 18px 14px;
    border-radius: 4px;
    max-width: none;
    margin: 0;
  }
  .gx-reader-title {
    font-size: 20px;
    line-height: 1.4;
    margin-bottom: 8px;
  }
  .gx-reader-meta {
    font-size: 12px;
    line-height: 1.6;
  }
  .gx-reader-content {
    font-size: 17px;
    line-height: 1.9;
  }
  .gx-reader-content p { text-indent: 2em; }

  .gx-reader-foot { padding: 16px 0 28px; }
  .gx-plbox { padding: 14px; }
  .gx-plform-actions .gx-btn {
    width: 100%;
    padding: 12px;
    font-size: 15px;
  }

  .gx-footer { padding: 24px 0 16px; margin-top: 24px; }
  .gx-footer-links a {
    display: inline-block;
    margin: 4px 8px;
  }

  #gxBackTop {
    right: 14px !important;
    bottom: 18px !important;
    width: 40px !important;
    height: 40px !important;
  }
}

@media (max-width: 420px) {
  .gx-book-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .gx-nav ul { grid-template-columns: repeat(2, 1fr); }
  .gx-book-actions .gx-btn { flex: 1 1 100%; }
}