/* ============================================================
   宣纸墨韵 · 古风主题
   ============================================================ */

:root {
  --paper:        #f6efdd;
  --paper-deep:   #eee3c8;
  --paper-dark:   #e6d8b8;
  --ink:          #2c2620;
  --ink-soft:     #6d6250;
  --ink-faint:    rgba(44, 38, 32, 0.18);
  --cinnabar:     #a6382e;
  --cinnabar-lt:  #c4574a;
  --bamboo:       #5f7355;
  --gold:         #a8813e;
  --shadow:       rgba(60, 48, 30, 0.12);

  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Noto Serif CJK SC",
                "Songti SC", "STSong", "SimSun", "Georgia", serif;
  --font-kai:   "Kaiti SC", "STKaiti", "KaiTi", "楷体", "楷体_GB2312",
                "Noto Serif SC", serif;

  --content-width: 760px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-serif);
  color: var(--ink);
  background-color: var(--paper);
  /* 宣纸质感：暖色晕染 + 无缝纸纹（低强度） */
  background-image:
    radial-gradient(ellipse 90% 60% at 15% -10%, rgba(214, 190, 140, 0.22), transparent 60%),
    radial-gradient(ellipse 80% 55% at 100% 110%, rgba(190, 160, 110, 0.16), transparent 55%),
    url("/img/paper-texture.jpg");
  background-size: auto, auto, 512px 512px;
  background-repeat: no-repeat, no-repeat, repeat;
  background-attachment: fixed, fixed, scroll;
  line-height: 1.95;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--cinnabar); text-decoration: none; transition: color .25s ease, opacity .25s ease; }
a:hover { color: var(--cinnabar-lt); }

::selection { background: rgba(166, 56, 46, 0.85); color: var(--paper); }

/* ---------- 卷轴式整体边框 ---------- */
.page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 28px;
  position: relative;
}
@media (min-width: 1180px) {
  .page::before, .page::after {
    content: "";
    position: absolute;
    top: 24px; bottom: 24px;
    width: 0;
    border-left: 1px solid var(--ink-faint);
    box-shadow: 3px 0 0 -2px var(--ink-faint);
    pointer-events: none;
  }
  .page::before { left: -18px; }
  .page::after  { right: -15px; }
}

/* ---------- 页头 ---------- */
.site-head {
  padding: 30px 0 18px;
  border-bottom: 1px solid var(--ink-faint);
  box-shadow: 0 3px 0 -2px var(--ink-faint);
}
.head-inner {
  max-width: var(--content-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand { display: flex; align-items: center; gap: 14px; color: var(--ink); }
.brand:hover { color: var(--ink); opacity: .85; }

/* 朱砂印章 */
.seal {
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  background: var(--cinnabar);
  color: var(--paper);
  font-family: var(--font-kai);
  font-size: 26px;
  border-radius: 6px;
  box-shadow: inset 0 0 0 2px rgba(246, 239, 221, 0.55), 2px 3px 6px var(--shadow);
  transform: rotate(-3deg);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.35; }
.brand-name { font-size: 21px; font-weight: 700; letter-spacing: 4px; }
.brand-sub  { font-size: 12px; color: var(--ink-soft); letter-spacing: 2px; font-family: var(--font-kai); }

.site-nav { display: flex; gap: 30px; }
.site-nav a {
  color: var(--ink-soft);
  font-size: 15.5px;
  letter-spacing: 3px;
  padding-bottom: 4px;
  position: relative;
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 0;
  width: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--cinnabar), transparent);
  transition: all .3s ease;
  transform: translateX(-50%);
}
.site-nav a:hover { color: var(--cinnabar); }
.site-nav a:hover::after { width: 100%; }

/* ---------- 首屏 ---------- */
.hero {
  position: relative;
  margin: 34px auto 10px;
  padding: 90px 20px 150px;
  overflow: hidden;
}
/* 水墨横幅：正片叠底融入宣纸底，顶部淡出 */
.hero-bg {
  position: absolute;
  inset: 0;
  background: url("/img/hero-shanshui.jpg") center 70% / cover no-repeat;
  mix-blend-mode: multiply;
  opacity: 0.92;
  -webkit-mask-image: radial-gradient(130% 155% at 50% 64%, #000 40%, rgba(0,0,0,0.45) 70%, transparent 98%);
  mask-image: radial-gradient(130% 155% at 50% 64%, #000 40%, rgba(0,0,0,0.45) 70%, transparent 98%);
  pointer-events: none;
}

.hero-text {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 56px;
  position: relative;
}
.hero-vertical {
  writing-mode: vertical-rl;
  font-family: var(--font-kai);
  font-size: 17px;
  letter-spacing: 10px;
  color: var(--ink-soft);
  border-right: 1px solid var(--ink-faint);
  padding-right: 16px;
  margin: 0;
  white-space: nowrap;
}
.hero-vertical-right {
  border-right: none;
  border-left: 1px solid var(--ink-faint);
  padding: 0 0 0 16px;
}
.hero-main { text-align: center; }
.hero-title {
  margin: 0 0 18px;
  font-size: 42px;
  letter-spacing: 10px;
  font-weight: 700;
  text-indent: 10px;
  color: var(--ink);
  text-shadow: 2px 3px 0 rgba(166, 56, 46, 0.10);
}
.hero-desc {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15.5px;
  letter-spacing: 3px;
  font-family: var(--font-kai);
}

/* ---------- 板块标题 ---------- */
.post-section { max-width: var(--content-width); margin: 30px auto 0; }
.section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 21px;
  letter-spacing: 6px;
  margin: 0 0 26px;
}
.section-mark {
  width: 10px; height: 10px;
  background: var(--cinnabar);
  transform: rotate(45deg);
  flex: none;
}

/* ---------- 文章列表 ---------- */
.post-list { list-style: none; margin: 0; padding: 0; }
.post-item {
  display: flex;
  gap: 26px;
  padding: 22px 6px;
  border-bottom: 1px dashed var(--ink-faint);
  transition: background .3s ease;
}
.post-item:hover { background: rgba(238, 227, 200, 0.5); }

.post-date {
  flex: none;
  width: 76px;
  text-align: center;
  border: 1px solid var(--ink-faint);
  border-radius: 4px;
  padding: 8px 4px;
  height: fit-content;
  background: rgba(246, 239, 221, 0.7);
}
.post-date .d-year { display: block; font-size: 11.5px; letter-spacing: 1px; color: var(--ink-soft); }
.post-date .d-md   { display: block; font-size: 19px; font-weight: 700; color: var(--cinnabar); letter-spacing: 1px; }

.post-brief { flex: 1; }
.post-title { margin: 0 0 6px; font-size: 20px; letter-spacing: 2px; line-height: 1.6; }
.post-title a { color: var(--ink); }
.post-title a:hover { color: var(--cinnabar); }
.post-excerpt {
  margin: 0 0 10px;
  color: var(--ink-soft);
  font-size: 14.5px;
  line-height: 1.9;
}
.post-meta { display: flex; align-items: center; gap: 14px; font-size: 12.5px; color: var(--ink-soft); }
.meta-words { letter-spacing: 1px; }

.tag {
  color: var(--bamboo);
  font-size: 12.5px;
  letter-spacing: 1px;
  border: 1px solid rgba(95, 115, 85, 0.4);
  padding: 1px 9px;
  border-radius: 999px;
  transition: all .25s ease;
}
.tag:hover { background: var(--bamboo); color: var(--paper); border-color: var(--bamboo); }
.tag-lg { font-size: 15px; padding: 4px 16px; }
.tag-count { color: var(--ink-soft); font-size: 12px; margin-left: 2px; }

.more-link { text-align: right; margin: 22px 0 0; letter-spacing: 2px; font-size: 14.5px; }

/* ---------- 页面标题（列表/标签/关于） ---------- */
.page-head { max-width: var(--content-width); margin: 42px auto 18px; text-align: center; }
.page-title {
  font-size: 34px;
  letter-spacing: 10px;
  margin: 0 0 12px;
  text-indent: 10px;
}
.page-desc { color: var(--ink-soft); letter-spacing: 2px; font-family: var(--font-kai); }
.tag-cloud {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  padding: 10px 0 40px;
  max-width: var(--content-width);
  margin: 0 auto;
}
.notfound { padding: 60px 0 90px; }
.notfound .page-title { font-size: 58px; color: var(--cinnabar); letter-spacing: 18px; }

/* ---------- 文章页 ---------- */
.article { max-width: var(--content-width); margin: 0 auto; padding: 20px 0 40px; }
.article-head { text-align: center; padding: 30px 0 6px; }
/* 文章封面：正片叠底融入宣纸，左右淡出 */
.article-cover { margin: 0 auto 26px; }
.article-cover img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  display: block;
  border-radius: 6px;
  mix-blend-mode: multiply;
  -webkit-mask-image: linear-gradient(to right, transparent, #000 5%, #000 95%, transparent);
  mask-image: linear-gradient(to right, transparent, #000 5%, #000 95%, transparent);
}
.article-body .about-figure {
  display: block;
  max-width: 320px;
  width: 100%;
  margin: 1.6em auto;
  border: none;
  box-shadow: none;
  mix-blend-mode: multiply;
}
.article-title { font-size: 32px; letter-spacing: 5px; line-height: 1.7; margin: 0 0 18px; }
.article-meta { color: var(--ink-soft); font-size: 13.5px; letter-spacing: 2px; }
.meta-sep { margin: 0 8px; color: var(--ink-faint); }
.article-tags { margin: 14px 0 4px; display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

.head-ornament, .foot-ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin: 22px 0 8px;
}
.head-ornament .line, .foot-ornament .line {
  width: 110px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--ink-faint), transparent);
}
.head-ornament .dot, .foot-ornament .dot { color: var(--cinnabar); font-size: 11px; }

/* 正文排版：中式缩进 */
.article-body { padding: 10px 4px; font-size: 16.5px; }
.article-body p { margin: 1.15em 0; text-indent: 2em; }
.article-body h2 {
  font-size: 23px;
  letter-spacing: 4px;
  margin: 2.1em 0 1em;
  padding-left: 16px;
  border-left: 5px solid var(--cinnabar);
  line-height: 1.6;
}
.article-body h3 { font-size: 19px; letter-spacing: 3px; margin: 1.8em 0 .9em; }
.article-body h3::before { content: "◆ "; color: var(--gold); font-size: 12px; vertical-align: 2px; }
.article-body img {
  max-width: 100%;
  display: block;
  margin: 1.6em auto;
  border: 6px solid var(--paper);
  box-shadow: 0 4px 18px var(--shadow);
}
.article-body blockquote {
  margin: 1.6em 0;
  padding: 16px 22px;
  background: rgba(238, 227, 200, 0.55);
  border-left: 4px solid var(--gold);
  border-radius: 0 6px 6px 0;
  font-family: var(--font-kai);
  color: var(--ink-soft);
}
.article-body blockquote p { text-indent: 0; margin: .45em 0; }
.article-body ul, .article-body ol { padding-left: 2.2em; }
.article-body li { margin: .45em 0; }
.article-body code {
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 13.5px;
  background: rgba(166, 56, 46, 0.09);
  color: var(--cinnabar);
  padding: 2px 7px;
  border-radius: 4px;
}
.article-body pre {
  background: #2c2620;
  color: #e9dfc9;
  padding: 20px 22px;
  border-radius: 8px;
  overflow-x: auto;
  line-height: 1.75;
  border: 1px solid rgba(166, 56, 46, 0.35);
  box-shadow: 3px 4px 0 rgba(60, 48, 30, 0.10);
}
.article-body pre code { background: none; color: inherit; padding: 0; }
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.6em 0;
  font-size: 14.5px;
}
.article-body th {
  background: var(--paper-dark);
  letter-spacing: 2px;
  padding: 10px 12px;
  border: 1px solid var(--ink-faint);
}
.article-body td { padding: 9px 12px; border: 1px solid var(--ink-faint); text-align: center; }
.article-body hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ink-faint), transparent);
  margin: 2.4em 0;
}
.article-body a { border-bottom: 1px dashed rgba(166, 56, 46, 0.5); }
.article-body a:hover { border-bottom-style: solid; }
.article-body strong { color: var(--cinnabar); }
.article-body em { font-family: var(--font-kai); }

/* ---------- 文末 ---------- */
.article-foot { text-align: center; padding: 12px 0 0; }
.end-mark {
  letter-spacing: 10px;
  color: var(--ink-soft);
  font-family: var(--font-kai);
  margin: 34px 0 26px;
}
.post-nav {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 14px;
  letter-spacing: 1px;
  margin-bottom: 18px;
}
.post-nav a { color: var(--ink-soft); }
.post-nav a:hover { color: var(--cinnabar); }
.back-link { font-size: 13.5px; letter-spacing: 2px; }

/* ---------- 页脚 ---------- */
.site-foot {
  text-align: center;
  padding: 34px 0 46px;
  margin-top: 30px;
  border-top: 1px solid var(--ink-faint);
}
.foot-ornament { margin-bottom: 16px; }
.foot-text { margin: 0 0 10px; font-size: 13px; color: var(--ink-soft); letter-spacing: 2px; }
.foot-filing {
  margin: 0 0 10px;
  font-size: 12.5px;
  letter-spacing: 1px;
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px 0;
  line-height: 1;
}
.foot-filing a {
  color: var(--ink-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  height: 18px;
  line-height: 1;
}
.foot-filing a:hover { color: var(--cinnabar); }
.filing-icon { width: 16px; height: 16px; display: inline-block; vertical-align: middle; }
.icon-MOE { font-size: 15px; line-height: 1; }
.filing-sep { margin: 0 10px; color: var(--ink-faint); }
.foot-stats {
  margin: 0 0 10px;
  font-size: 12.5px;
  letter-spacing: 1px;
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px 10px;
  line-height: 1;
}
.stat-num { color: var(--cinnabar); font-weight: 700; margin: 0 2px; }
.foot-motto {
  margin: 0;
  font-family: var(--font-kai);
  font-size: 13px;
  color: var(--gold);
  letter-spacing: 4px;
}

/* ---------- 分页 ---------- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 36px 0 20px;
  list-style: none;
  padding: 0;
}
.pagination li a, .pagination li span {
  display: inline-block;
  min-width: 36px;
  padding: 5px 12px;
  border: 1px solid var(--ink-faint);
  border-radius: 4px;
  color: var(--ink-soft);
  font-size: 14px;
  letter-spacing: 1px;
}
.pagination li.active span { background: var(--cinnabar); color: var(--paper); border-color: var(--cinnabar); }
.pagination li a:hover { color: var(--paper); background: var(--cinnabar); border-color: var(--cinnabar); }

/* ---------- 响应式 ---------- */
@media (max-width: 760px) {
  body { font-size: 15.5px; }
  .head-inner { flex-direction: column; gap: 14px; }
  .site-nav { gap: 22px; }
  .hero { padding: 30px 0 46px; }
  .hero-text { gap: 22px; }
  .hero-title { font-size: 34px; letter-spacing: 9px; }
  .hero-vertical { font-size: 13.5px; letter-spacing: 6px; }
  .post-item { gap: 16px; }
  .post-date { width: 62px; }
  .post-title { font-size: 18px; }
  .article-title { font-size: 25px; letter-spacing: 3px; }
  .post-nav { flex-direction: column; gap: 10px; }
}