/* ===== 写作之路知易行难 · 暖纸主题（干净主流） ===== */

:root {
  --paper: #e9e5dd;
  --paper-2: #e2ddd3;
  --card: #f4f1eb;
  --border: #d8d2c6;
  --border-soft: #e5e0d5;
  --ink: #333029;
  --muted: #8c867a;
  --accent: #a67b2e;
  --accent-dark: #8a6522;
  --accent-soft: #f3ecdd;
  --cream: #f5f1e8;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --kai: "Kaiti SC", "STKaiti", "KaiTi", "Noto Serif SC", serif;
  --shadow-card: 0 2px 14px rgba(60, 50, 35, 0.07);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--serif);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.95;
  min-height: 100vh;
}

::selection { background: rgba(166, 123, 46, 0.2); }

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

/* 星野（浅色主题下隐藏） */
.stars { display: none; }

/* ===== 左侧竖栏 ===== */
.rail {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 212px;
  z-index: 30;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 34px 18px 28px;
  background: var(--card);
  border-right: 1px solid var(--border);
}

.rail-brand { text-align: center; }
.rail-brand .seal {
  width: 52px;
  height: 52px;
  border-radius: 10px;
  margin-bottom: 12px;
}
.rail-name {
  display: block;
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--ink);
  line-height: 1.7;
}
.rail-sub {
  display: block;
  font-size: 0.64rem;
  letter-spacing: 1.5px;
  color: var(--muted);
  margin-top: 5px;
  white-space: nowrap;
}

.rail-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
}
.rail-nav a {
  display: block;
  text-align: center;
  padding: 11px 6px;
  color: var(--ink);
  font-size: 0.96rem;
  letter-spacing: 4px;
  border-radius: 10px;
  transition: background .2s, color .2s;
}
.rail-nav a:hover,
.rail-nav a.active {
  color: var(--accent-dark);
  background: var(--accent-soft);
}

.rail-foot { text-align: center; }
.rail-motto {
  font-family: var(--kai);
  font-size: 0.8rem;
  letter-spacing: 1px;
  color: var(--muted);
  margin: 0 0 10px;
  white-space: nowrap;
}
.rail-foot small { color: var(--muted); letter-spacing: 2px; font-size: 0.66rem; }

/* ===== 主区 ===== */
.main {
  position: relative;
  z-index: 1;
  margin-left: 212px;
}

/* ===== Hero · 大图压字 ===== */
.hero-night {
  position: relative;
  min-height: 88vh;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(233, 229, 221, 0.3) 0%, rgba(233, 229, 221, 0) 34%, rgba(233, 229, 221, 0.85) 100%);
}

.hero-vtitle {
  position: absolute;
  top: 50%;
  right: clamp(28px, 7vw, 110px);
  transform: translateY(-52%);
  writing-mode: vertical-rl;
  white-space: nowrap;
  margin: 0;
  font-family: var(--kai);
  font-size: clamp(2.1rem, 5vw, 3.7rem);
  letter-spacing: 16px;
  font-weight: 600;
  color: var(--ink);
  text-shadow: 0 2px 18px rgba(255, 255, 255, 0.65);
}

.hero-lede {
  position: absolute;
  left: clamp(26px, 5vw, 80px);
  bottom: clamp(60px, 10vh, 110px);
  max-width: 480px;
}
.hero-eyebrow {
  display: block;
  color: var(--accent-dark);
  letter-spacing: 6px;
  font-size: 0.8rem;
  margin-bottom: 14px;
}
.hero-eyebrow::before {
  content: "";
  display: inline-block;
  width: 34px;
  height: 1px;
  background: var(--accent);
  vertical-align: middle;
  margin-right: 12px;
}
.hero-desc {
  margin: 0 0 26px;
  font-family: var(--kai);
  font-size: clamp(1.15rem, 2.2vw, 1.55rem);
  letter-spacing: 4px;
  line-height: 2;
  color: var(--ink);
  text-shadow: 0 1px 12px rgba(255, 255, 255, 0.6);
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.cta {
  display: inline-block;
  padding: 12px 34px;
  letter-spacing: 4px;
  font-size: 0.92rem;
  border-radius: 999px;
  transition: background .2s, color .2s, border-color .2s;
}
.cta-gold {
  background: var(--accent);
  color: #ffffff;
}
.cta-gold:hover { background: var(--accent-dark); color: #ffffff; }
.cta-ghost {
  border: 1px solid rgba(51, 48, 41, 0.4);
  color: var(--ink);
}
.cta-ghost:hover { background: rgba(51, 48, 41, 0.08); color: var(--ink); }

.hero-scroll {
  position: absolute;
  right: 34px;
  bottom: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--accent-dark);
  letter-spacing: 4px;
  font-size: 0.72rem;
  writing-mode: vertical-rl;
}
.hero-scroll::after {
  content: "";
  width: 1px;
  height: 52px;
  background: linear-gradient(180deg, var(--accent-dark), rgba(51, 48, 41, 0.12));
  transform-origin: top;
  animation: drip 2.6s ease-in-out infinite;
}
@keyframes drip {
  0% { transform: scaleY(0); transform-origin: top; }
  55% { transform: scaleY(1); transform-origin: top; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ===== 区块标题 ===== */
.section {
  max-width: 980px;
  margin: 0 auto;
  padding: 72px 30px 12px;
}
.section-head { display: flex; align-items: baseline; gap: 20px; margin-bottom: 40px; }
.section-index {
  font-family: var(--kai);
  color: var(--accent);
  letter-spacing: 4px;
  font-size: 0.82rem;
  border: 1px solid var(--border);
  background: var(--card);
  padding: 4px 14px;
  border-radius: 999px;
}
.section-title {
  margin: 0;
  font-size: 1.62rem;
  letter-spacing: 8px;
  color: var(--ink);
}
.section-sub {
  margin: 0;
  color: var(--muted);
  letter-spacing: 3px;
  font-size: 0.85rem;
}
.section-line { flex: 1; height: 1px; background: var(--border); }

/* ===== 文章流 ===== */
.band-list { display: flex; flex-direction: column; gap: 26px; }

.band {
  position: relative;
  display: block;
  min-height: 250px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  transition: transform .3s, box-shadow .3s;
}
.band:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(60, 50, 35, 0.12);
}

.band-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform .8s ease;
}
.band:hover .band-bg { transform: scale(1.04); }
.band-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(238, 234, 226, 0.94) 0%, rgba(238, 234, 226, 0.74) 46%, rgba(238, 234, 226, 0.15) 100%);
}

.band-ordinal {
  position: absolute;
  top: 20px;
  right: 28px;
  z-index: 2;
  font-family: var(--kai);
  font-size: 1.45rem;
  letter-spacing: 5px;
  color: rgba(138, 101, 34, 0.5);
}

.band-inner {
  position: relative;
  z-index: 2;
  max-width: 62%;
  padding: 34px 38px 30px;
}
.band-date { color: var(--muted); letter-spacing: 3px; font-size: 0.78rem; }
.band-title {
  margin: 10px 0 10px;
  font-size: 1.42rem;
  letter-spacing: 2px;
  line-height: 1.65;
}
.band-title a { color: var(--ink); }
.band:hover .band-title a { color: var(--accent-dark); }
.band-excerpt {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.9;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.band-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--muted);
}
.band-meta .sep { color: var(--border); }

.tag {
  color: var(--accent);
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 999px;
  padding: 1px 12px;
  font-size: 0.78rem;
  letter-spacing: 1px;
  transition: background .2s, color .2s, border-color .2s;
}
.tag:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.more-link { text-align: center; margin: 44px 0 6px; letter-spacing: 2px; }
.more-link .cta-ghost {
  border-color: var(--border);
  color: var(--accent);
  background: var(--card);
}
.more-link .cta-ghost:hover { border-color: var(--accent); background: var(--accent-soft); color: var(--accent-dark); }

/* ===== 标签云 ===== */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding: 6px 0 10px;
}
.chip {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 22px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  color: var(--ink);
  letter-spacing: 3px;
  font-size: 0.9rem;
  transition: border-color .2s, background .2s, color .2s;
}
.chip:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-dark);
}
.chip .num { color: var(--muted); font-size: 0.76rem; }

/* ===== 关于区块 ===== */
.about-night {
  position: relative;
  margin: 78px 0 0;
  min-height: 460px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.about-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.about-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(233, 229, 221, 0.55);
}
.about-card {
  position: relative;
  z-index: 2;
  width: min(560px, 88%);
  text-align: center;
  padding: 46px 48px 42px;
  background: rgba(244, 241, 235, 0.96);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
}
.about-card h3 {
  margin: 0 0 6px;
  font-size: 1.45rem;
  letter-spacing: 6px;
  color: var(--ink);
}
.about-card .motto {
  font-family: var(--kai);
  color: var(--accent);
  letter-spacing: 4px;
  margin: 0 0 16px;
}
.about-card p { color: var(--muted); margin: 0 0 24px; font-size: 0.95rem; }
.about-card .cta-gold {
  background: var(--accent);
  color: #ffffff;
}
.about-card .cta-gold:hover { background: var(--accent-dark); color: #ffffff; }

/* ===== 分页 ===== */
.pagination {
  display: flex;
  justify-content: center;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 42px 0 10px;
  flex-wrap: wrap;
}
.pagination li a,
.pagination li.disabled span {
  display: inline-block;
  min-width: 38px;
  padding: 6px 13px;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  background: var(--card);
}
.pagination li.active span {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}
.pagination li a:hover { border-color: var(--accent); color: var(--accent-dark); }

/* ===== 页面头部 ===== */
.page-head {
  max-width: 860px;
  margin: 0 auto;
  padding: 66px 30px 6px;
}
.page-kicker { color: var(--accent); letter-spacing: 5px; font-size: 0.78rem; }
.page-title {
  margin: 12px 0 10px;
  font-family: var(--kai);
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  letter-spacing: 10px;
  color: var(--ink);
}
.page-desc { color: var(--muted); letter-spacing: 2px; margin: 0; }
.page-desc a { color: var(--accent); border-bottom: 1px dashed var(--border); }

/* ===== 文章页 ===== */
.article-banner {
  position: relative;
  height: 46vh;
  min-height: 320px;
  overflow: hidden;
}
.article-banner .banner-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.article-banner .banner-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(233, 229, 221, 0.25) 0%, rgba(233, 229, 221, 0) 40%, rgba(233, 229, 221, 0.88) 100%);
}
.banner-text {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 0 clamp(26px, 5vw, 70px) 34px;
}
.banner-text h1 {
  margin: 0 0 12px;
  font-family: var(--kai);
  font-size: clamp(1.7rem, 3.8vw, 2.5rem);
  letter-spacing: 6px;
  line-height: 1.55;
  color: var(--ink);
  text-shadow: 0 1px 14px rgba(255, 255, 255, 0.65);
}
.banner-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  color: var(--ink);
  opacity: 0.78;
  font-size: 0.84rem;
  letter-spacing: 2px;
}
.banner-meta .sep { color: var(--border); }

.article-shell {
  max-width: 780px;
  margin: 46px auto 0;
  padding: 0 30px;
}
.article-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 30px; }

.article-body {
  font-size: 1.05rem;
  line-height: 2.25;
  letter-spacing: 0.6px;
  color: var(--ink);
}
.article-body > p:first-of-type { text-indent: 0; }
.article-body > p:first-of-type::first-letter {
  float: left;
  font-family: var(--kai);
  font-size: 2.9em;
  line-height: 1.15;
  margin: 2px 12px 0 0;
  color: var(--accent);
}
.article-body p { margin: 0 0 1.35em; text-indent: 2em; }
.article-body h2,
.article-body h3 {
  color: var(--ink);
  letter-spacing: 3px;
  margin: 2em 0 1em;
  padding-left: 14px;
  border-left: 3px solid var(--accent);
  line-height: 1.6;
}
.article-body blockquote {
  margin: 1.8em 0;
  padding: 18px 26px;
  font-family: var(--kai);
  color: var(--muted);
  background: var(--paper-2);
  border-left: 3px solid var(--accent);
  border-radius: 0 12px 12px 0;
}
.article-body blockquote p { text-indent: 0; margin: 0.5em 0; }
.article-body img { max-width: 100%; border-radius: 10px; }
.article-body code {
  background: var(--paper-2);
  color: var(--accent-dark);
  padding: 1px 7px;
  border-radius: 5px;
  font-size: 0.88em;
}
.article-body pre {
  background: var(--paper-2);
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  padding: 18px 20px;
  overflow-x: auto;
}
.article-body pre code { background: none; padding: 0; }
.article-body hr {
  border: none;
  height: 1px;
  margin: 2.6em 0;
  background: var(--border);
}
.article-body strong { color: var(--accent-dark); }
.article-body a { border-bottom: 1px dashed var(--border); }

.article-foot { margin-top: 52px; }

.end-mark {
  text-align: center;
  font-family: var(--kai);
  color: var(--muted);
  letter-spacing: 12px;
  margin-bottom: 34px;
}

.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 26px; }
.post-nav a {
  padding: 20px 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--ink);
  font-size: 0.93rem;
  letter-spacing: 1px;
  line-height: 1.8;
  transition: border-color .2s, background .2s, color .2s;
}
.post-nav a:hover { border-color: var(--accent); background: var(--accent-soft); color: var(--accent-dark); }
.post-nav .dir { display: block; color: var(--muted); font-size: 0.76rem; letter-spacing: 4px; margin-bottom: 4px; }
.nav-next { text-align: right; }

.back-link { text-align: center; letter-spacing: 2px; color: var(--muted); }

/* ===== 页脚 ===== */
.site-foot {
  margin-top: 80px;
  padding: 36px 30px 42px;
  text-align: center;
  border-top: 1px solid var(--border);
  background: var(--paper-2);
  font-size: 0.82rem;
  color: var(--muted);
  letter-spacing: 1.5px;
}
.foot-text, .foot-filing, .foot-stats { margin: 8px 0; }
.foot-filing a { color: var(--muted); }
.foot-filing a:hover { color: var(--accent-dark); }
.filing-icon { width: 16px; height: 16px; vertical-align: -3px; margin-right: 5px; }
.filing-sep { margin: 0 10px; color: var(--border); }
.stat-num { color: var(--accent-dark); font-weight: 700; }
.foot-motto {
  margin-top: 12px;
  font-family: var(--kai);
  color: var(--muted);
  letter-spacing: 4px;
}

/* ===== 404 ===== */
.notfound-wrap {
  position: relative;
  min-height: 82vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.notfound-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.notfound-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(233, 229, 221, 0.6);
}
.notfound { position: relative; z-index: 2; text-align: center; padding: 60px 24px; }
.notfound .nf-code {
  font-family: var(--kai);
  font-size: clamp(3rem, 8vw, 5rem);
  letter-spacing: 20px;
  color: var(--ink);
  margin: 0 0 18px;
}
.notfound .nf-text { color: var(--ink); letter-spacing: 3px; line-height: 2.2; margin: 0; }
.notfound .nf-text a { color: var(--accent-dark); border-bottom: 1px dashed var(--border); }

/* ===== 响应式 ===== */
@media (max-width: 960px) {
  .rail {
    position: sticky;
    top: 0;
    left: auto;
    bottom: auto;
    width: 100%;
    flex-direction: row;
    padding: 10px 16px;
    gap: 12px;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .rail-brand { display: flex; align-items: center; gap: 10px; }
  .rail-brand .seal { width: 38px; height: 38px; margin: 0; }
  .rail-name { font-size: 0.92rem; letter-spacing: 2px; }
  .rail-sub, .rail-foot { display: none; }
  .rail-nav { flex-direction: row; gap: 2px; width: auto; margin-left: auto; flex-wrap: wrap; }
  .rail-nav a { padding: 6px 10px; font-size: 0.82rem; letter-spacing: 2px; }
  .main { margin-left: 0; }
  .hero-night { min-height: 76vh; }
  .hero-vtitle { right: 18px; letter-spacing: 10px; }
  .hero-lede { max-width: 76%; }
  .band-inner { max-width: 88%; padding: 26px 24px 24px; }
  .post-nav { grid-template-columns: 1fr; }
  .nav-next { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-scroll::after { animation: none; }
  .band:hover, .cta-gold:hover { transform: none; }
}