/* ============================================================================
 * 古典文学网 · 样式表（古典中国风）
 * ----------------------------------------------------------------------------
 * 视觉语言：宣纸底色 + 墨色文字 + 印章红点睛 + 凝脂蓝点缀。
 * 字体优先使用系统 CJK 衬线（宋/楷），保证离线也能呈现书卷气。
 * ========================================================================== */

:root {
  --paper: #f6f1e4;
  --paper-2: #efe6d3;
  --paper-3: #e7dcc4;
  --card: #fffdf8;
  --ink: #2b2622;
  --ink-soft: #5b5249;
  --ink-faint: #8a7f70;
  --seal: #9e2b25;
  --seal-deep: #7c1f1c;
  --accent: #2c5364;
  --accent-soft: #3f7491;
  --gold: #b08a3e;
  --line: rgba(43, 38, 34, 0.12);
  --line-strong: rgba(43, 38, 34, 0.22);
  --shadow: 0 8px 30px rgba(43, 38, 34, 0.10);
  --shadow-sm: 0 2px 10px rgba(43, 38, 34, 0.08);
  --radius: 16px;
  --maxw: 1180px;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong",
    "SimSun", "宋体", "Georgia", serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: var(--serif);
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 12% 18%, rgba(176, 138, 62, 0.06), transparent 42%),
    radial-gradient(circle at 88% 8%, rgba(44, 83, 100, 0.07), transparent 40%),
    radial-gradient(circle at 50% 120%, rgba(158, 43, 37, 0.05), transparent 45%);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }

/* ---------------- 头部 ---------------- */
#header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(246, 241, 228, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 12px 22px;
  display: flex; align-items: center; gap: 22px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.seal {
  width: 42px; height: 42px; border-radius: 10px;
  background: linear-gradient(135deg, var(--seal), var(--seal-deep));
  color: #fff; font-size: 24px; font-weight: 700;
  display: grid; place-items: center;
  box-shadow: 0 4px 12px rgba(158, 43, 37, 0.35);
  font-family: var(--serif);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text b { font-size: 19px; letter-spacing: 2px; }
.brand-text i { font-style: normal; font-size: 11px; color: var(--ink-faint); letter-spacing: 1px; }

.nav { display: flex; gap: 6px; margin-left: 8px; }
.nav-link {
  padding: 7px 14px; border-radius: 999px; font-size: 15px; color: var(--ink-soft);
  transition: all 0.2s; letter-spacing: 1px;
}
.nav-link:hover { color: var(--ink); background: rgba(43, 38, 34, 0.06); }
.nav-link.active { color: #fff; background: var(--accent); }

.search { margin-left: auto; display: flex; align-items: center;
  background: var(--card); border: 1px solid var(--line);
  border-radius: 999px; padding: 4px 6px 4px 14px; transition: border-color 0.2s; }
.search:focus-within { border-color: var(--accent-soft); }
.search input { border: 0; outline: 0; background: transparent; font-family: var(--serif);
  font-size: 14px; width: 210px; color: var(--ink); }
.search button { border: 0; background: var(--accent); color: #fff; width: 32px; height: 32px;
  border-radius: 50%; font-size: 14px; }

.user-area { margin-left: 6px; }
.user-chip { display: flex; align-items: center; gap: 8px; cursor: pointer; padding: 3px 10px 3px 3px;
  border-radius: 999px; background: var(--card); border: 1px solid var(--line); }
.user-chip:hover { border-color: var(--accent-soft); }
.user-name { font-size: 14px; color: var(--ink); }

.avatar { border-radius: 50%; object-fit: cover; flex: none; }
.avatar-text { display: inline-grid; place-items: center; color: #fff; font-size: 15px; font-weight: 700; }

/* ---------------- 按钮 ---------------- */
.btn { border: 1px solid var(--line); background: var(--card); color: var(--ink);
  padding: 9px 18px; border-radius: 999px; font-size: 14px; transition: all 0.2s; letter-spacing: 1px; }
.btn:hover { border-color: var(--accent-soft); }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: #234454; }
.btn-ghost { background: transparent; }
.btn-action { font-size: 15px; padding: 10px 22px; }
.btn-action.on { background: var(--seal); color: #fff; border-color: var(--seal); }
.btn.block { width: 100%; }

/* ---------------- 通用区块 ---------------- */
.block { max-width: var(--maxw); margin: 40px auto; padding: 0 22px; }
.block-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 20px;
  border-bottom: 1px solid var(--line); padding-bottom: 12px; }
.sec-title { font-size: 22px; margin: 0; letter-spacing: 3px; position: relative; padding-left: 14px; }
.sec-title::before { content: ""; position: absolute; left: 0; top: 4px; bottom: 4px; width: 4px;
  border-radius: 4px; background: linear-gradient(var(--seal), var(--seal-deep)); }
.sec-sub { color: var(--ink-faint); font-size: 13px; letter-spacing: 1px; }
.more { margin-left: auto; color: var(--accent-soft); font-size: 14px; }

/* ---------------- 轮播 ---------------- */
.hero { max-width: var(--maxw); margin: 26px auto 0; padding: 0 22px; }
.carousel { position: relative; height: 340px; border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); }
.slide { position: absolute; inset: 0; opacity: 0; transition: opacity 0.9s ease;
  display: flex; align-items: flex-end; }
.slide.active { opacity: 1; }
.slide-inner { padding: 44px 48px; color: #fdf6e8; max-width: 720px; }
.slide-kicker { font-size: 13px; letter-spacing: 3px; opacity: 0.85; margin-bottom: 10px; }
.slide-title { font-size: 38px; margin: 0 0 12px; letter-spacing: 4px; line-height: 1.25;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.25); }
.slide-sub { font-size: 16px; margin: 0 0 18px; opacity: 0.92; }
.slide-cta { display: inline-block; padding: 8px 18px; border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 999px; font-size: 14px; }
.dots { display: flex; gap: 8px; justify-content: center; margin-top: 14px; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--line-strong); cursor: pointer; transition: all 0.2s; }
.dot.on { background: var(--seal); width: 22px; border-radius: 6px; }

/* ---------------- 分类 ---------------- */
.cat-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.cat-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 18px; position: relative; overflow: hidden; transition: transform 0.25s, box-shadow 0.25s; }
.cat-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--c); }
.cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.cat-count { font-size: 12px; color: var(--ink-faint); }
.cat-card h3 { margin: 8px 0 6px; font-size: 20px; letter-spacing: 2px; color: var(--c); }
.cat-card p { margin: 0; font-size: 13px; color: var(--ink-soft); line-height: 1.6; }

/* ---------------- 作品卡片 ---------------- */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card-grid.mini { grid-template-columns: repeat(2, 1fr); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: transform 0.25s, box-shadow 0.25s; }
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.card-cover { position: relative; height: 150px; padding: 18px; color: #fdf6e8; overflow: hidden; }
.cover-watermark { position: absolute; right: 10px; bottom: -18px; font-size: 96px; opacity: 0.16;
  font-weight: 700; line-height: 1; }
.cover-dynasty { font-size: 13px; letter-spacing: 2px; opacity: 0.9; }
.cover-title { position: absolute; left: 18px; bottom: 16px; font-size: 24px; letter-spacing: 3px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3); }
.card-body { padding: 14px 18px 18px; }
.card-meta { display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--ink-soft); margin-bottom: 8px; }
.chip { padding: 2px 10px; border-radius: 999px; font-size: 12px; letter-spacing: 1px; }
.card-summary { margin: 0 0 12px; font-size: 14px; color: var(--ink-soft); line-height: 1.7;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-foot { display: flex; gap: 16px; font-size: 13px; color: var(--ink-faint); }

/* ---------------- 列表 / 筛选 ---------------- */
.filters { margin-bottom: 22px; }
.filter-row { display: flex; gap: 12px; flex-wrap: wrap; }
.filter-row select, .filter-row input {
  font-family: var(--serif); font-size: 14px; padding: 10px 14px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--card); color: var(--ink); outline: none; }
.filter-row input { flex: 1; min-width: 200px; }
.filter-row select:focus, .filter-row input:focus { border-color: var(--accent-soft); }
.empty { text-align: center; color: var(--ink-faint); padding: 50px 0; font-size: 15px; }

.pager { display: flex; gap: 8px; justify-content: center; margin-top: 30px; flex-wrap: wrap; }
.pg { border: 1px solid var(--line); background: var(--card); color: var(--ink-soft);
  padding: 7px 14px; border-radius: 10px; font-size: 14px; transition: all 0.2s; }
.pg:hover { border-color: var(--accent-soft); }
.pg.on { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ---------------- 详情 ---------------- */
.detail-page { max-width: 860px; }
.crumb { font-size: 13px; color: var(--ink-faint); margin-bottom: 14px; letter-spacing: 1px; }
.crumb a:hover { color: var(--accent); }
.detail-head { border-radius: var(--radius) var(--radius) 0 0; padding: 46px 40px; color: #fdf6e8; }
.detail-dynasty { font-size: 14px; letter-spacing: 3px; opacity: 0.9; }
.detail-title { font-size: 42px; margin: 8px 0 12px; letter-spacing: 5px; text-shadow: 0 2px 14px rgba(0, 0, 0, 0.25); }
.detail-author { font-size: 16px; opacity: 0.92; letter-spacing: 2px; }
.detail-meta { display: flex; gap: 22px; padding: 16px 40px; background: var(--paper-2);
  border: 1px solid var(--line); border-top: 0; font-size: 14px; color: var(--ink-soft); }
.detail-content { background: var(--card); border: 1px solid var(--line); border-top: 0;
  border-radius: 0 0 var(--radius) var(--radius); padding: 36px 50px 30px; }
.verse { margin: 0; text-align: center; font-size: 21px; line-height: 2.2; letter-spacing: 4px; color: var(--ink); }
.verse-gap { height: 14px; }
.detail-actions { display: flex; gap: 14px; justify-content: center; margin-top: 26px; }

/* ---------------- 书评 ---------------- */
.comments { max-width: 860px; margin: 0 auto 60px; padding: 0 22px; }
.comment-form { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; margin-bottom: 26px; }
.login-hint { font-size: 13px; color: var(--seal); margin-bottom: 8px; }
.login-hint a { text-decoration: underline; }
.comment-form textarea { width: 100%; border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 14px; font-family: var(--serif); font-size: 15px; resize: vertical; outline: none; }
.comment-form textarea:focus { border-color: var(--accent-soft); }
.cf-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 10px; }
.cf-tip { font-size: 12px; color: var(--ink-faint); }

.comment-list { display: flex; flex-direction: column; gap: 16px; }
.comment { display: flex; gap: 12px; background: var(--card); border: 1px solid var(--line);
  border-radius: 14px; padding: 16px 18px; }
.comment.reply { background: var(--paper-2); }
.cm-avatar { flex: none; }
.cm-main { flex: 1; min-width: 0; }
.cm-top { display: flex; align-items: baseline; gap: 10px; }
.cm-top b { font-size: 15px; }
.cm-time { font-size: 12px; color: var(--ink-faint); }
.cm-content { margin: 6px 0 8px; font-size: 15px; color: var(--ink); line-height: 1.7; }
.cm-tools { display: flex; gap: 14px; }
.cm-tool { border: 0; background: transparent; color: var(--ink-soft); font-size: 13px; padding: 0; transition: color 0.2s; }
.cm-tool:hover { color: var(--accent); }
.cm-tool.on { color: var(--seal); }
.cm-tool.danger:hover { color: var(--seal); }
.cm-replies { margin-top: 12px; display: flex; flex-direction: column; gap: 10px; }

/* ---------------- 用户中心 ---------------- */
.user-page { max-width: 980px; }
.user-hero { display: flex; align-items: center; gap: 18px; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 28px; box-shadow: var(--shadow-sm); }
.uh-info { flex: 1; }
.uh-info h2 { margin: 0; font-size: 24px; letter-spacing: 2px; }
.uh-info p { margin: 4px 0 10px; color: var(--ink-faint); font-size: 13px; }
.uh-stat { display: flex; gap: 22px; }
.uh-stat b { color: var(--seal); font-size: 18px; margin-right: 4px; }
.user-cols { display: grid; grid-template-columns: 1fr 1.3fr; gap: 24px; margin-top: 26px; align-items: start; }
.col-title { font-size: 18px; letter-spacing: 2px; margin: 0 0 16px; padding-left: 12px; position: relative; }
.col-title::before { content: ""; position: absolute; left: 0; top: 3px; bottom: 3px; width: 4px; border-radius: 4px; background: var(--accent); }
.profile-form { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; display: flex; flex-direction: column; gap: 14px; }
.profile-form label { display: flex; flex-direction: column; gap: 6px; font-size: 14px; color: var(--ink-soft); }
.profile-form input, .profile-form textarea, .profile-form select {
  font-family: var(--serif); font-size: 15px; padding: 10px 12px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--paper); color: var(--ink); outline: none; }
.profile-form input:focus, .profile-form textarea:focus, .profile-form select:focus { border-color: var(--accent-soft); }
.form-msg { font-size: 13px; min-height: 18px; }
.form-msg.ok { color: #2e7d4f; }
.form-msg.err { color: var(--seal); }

/* ---------------- 弹窗 ---------------- */
#modal { position: fixed; inset: 0; z-index: 100; display: none; }
#modal.show { display: block; }
.modal-mask { position: absolute; inset: 0; background: rgba(30, 25, 20, 0.45); backdrop-filter: blur(3px); }
.modal-box { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 380px; max-width: 92vw; background: var(--card); border-radius: 18px; padding: 28px 26px 26px;
  box-shadow: var(--shadow); border: 1px solid var(--line); }
.modal-close { position: absolute; right: 14px; top: 12px; border: 0; background: transparent;
  font-size: 24px; color: var(--ink-faint); line-height: 1; }
.tabs { display: flex; gap: 8px; margin-bottom: 18px; }
.tab { flex: 1; border: 1px solid var(--line); background: var(--paper); color: var(--ink-soft);
  padding: 9px; border-radius: 10px; font-size: 15px; letter-spacing: 2px; }
.tab.on { background: var(--accent); color: #fff; border-color: var(--accent); }
.auth-form { display: flex; flex-direction: column; gap: 12px; }
.auth-form.hidden { display: none; }
.auth-form input { font-family: var(--serif); font-size: 15px; padding: 11px 14px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--paper); color: var(--ink); outline: none; }
.auth-form input:focus { border-color: var(--accent-soft); }
.auth-msg { font-size: 13px; min-height: 16px; }
.auth-msg.err { color: var(--seal); }
.auth-tip { font-size: 12px; color: var(--ink-faint); text-align: center; }

/* ---------------- 引用块 ---------------- */
.quote-block { text-align: center; padding: 30px 22px; }
.quote-block blockquote { font-size: 24px; letter-spacing: 3px; margin: 0 0 10px; color: var(--ink); }
.quote-from { color: var(--ink-faint); font-size: 14px; margin: 0; }

/* ---------------- 页脚 ---------------- */
.site-footer { margin-top: 60px; border-top: 1px solid var(--line); background: rgba(231, 220, 196, 0.5); }
.foot-inner { max-width: var(--maxw); margin: 0 auto; padding: 28px 22px; display: flex;
  align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.foot-brand { display: flex; align-items: center; gap: 12px; }
.foot-brand .seal { width: 38px; height: 38px; font-size: 21px; }
.foot-brand b { font-size: 17px; letter-spacing: 2px; }
.foot-brand p { margin: 2px 0 0; font-size: 13px; color: var(--ink-faint); }
.foot-meta { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--ink-faint); text-align: right; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 980px) {
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .user-cols { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .nav { display: none; }
  .search input { width: 120px; }
  .brand-text i { display: none; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .card-grid, .card-grid.mini { grid-template-columns: 1fr; }
  .slide-title { font-size: 28px; }
  .slide-inner { padding: 28px; }
  .detail-title { font-size: 30px; }
  .detail-content { padding: 26px 22px; }
  .detail-meta, .detail-head { padding-left: 22px; padding-right: 22px; }
}