/* ==========================================================================
   浮光手记 · LUMEN JOURNAL
   设计系统 —— 参照 Aria Muse 极简编辑风
   米白骨色底 / 高对比衬线标题 / 微字距无衬线标签 / 暖调胶片影像 / 发丝分割线
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  /* 字体 */
  --font-display: 'Cormorant Garamond', 'Noto Serif SC', 'Songti SC', 'Source Han Serif SC', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', ui-monospace, 'Menlo', monospace;

  /* 色板 —— 浅色（默认） */
  --bg:        #F6F2EA;
  --bg-sunk:   #EFE9DD;
  --surface:   #FBF8F2;
  --ink:       #1A1815;
  --ink-2:     #4C453C;
  --muted:     #8E8478;
  --faint:     #B3A99B;
  --line:      rgba(26, 24, 21, 0.13);
  --line-soft: rgba(26, 24, 21, 0.07);
  --accent:    #A9552C;
  --accent-2:  #7E8F6C;
  --overlay:   rgba(20, 16, 10, 0.42);
  --shadow:    0 24px 60px -32px rgba(40, 30, 18, 0.4);

  /* 尺度 */
  --wrap: 1320px;
  --gut: clamp(20px, 5vw, 72px);
  --r: 2px;
  --ease: cubic-bezier(.22, .82, .24, 1);
  --dur: .75s;
}

/* ---------- 2. 深色模式 ---------- */
:root[data-theme='dark'] {
  --bg:        #16130F;
  --bg-sunk:   #100E0B;
  --surface:   #1D1915;
  --ink:       #F2ECE1;
  --ink-2:     #C6BDAF;
  --muted:     #8C8275;
  --faint:     #5E564C;
  --line:      rgba(242, 236, 225, 0.15);
  --line-soft: rgba(242, 236, 225, 0.07);
  --accent:    #DA8E62;
  --accent-2:  #9EAE89;
  --overlay:   rgba(8, 6, 4, 0.5);
  --shadow:    0 24px 60px -32px rgba(0, 0, 0, 0.75);
  color-scheme: dark;
}

/* ---------- 3. 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background-color .5s var(--ease), color .5s var(--ease);
}

body.nav-open { overflow: hidden; }

img { max-width: 100%; display: block; border: 0; }

a { color: inherit; text-decoration: none; }

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

::selection { background: var(--accent); color: #fff; }

:focus-visible { outline: 1px solid var(--accent); outline-offset: 3px; }

/* 细滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-sunk); }
::-webkit-scrollbar-thumb { background: var(--faint); border: 3px solid var(--bg-sunk); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* ---------- 4. 排版原子 ---------- */

/* 微字距标签 —— 全站识别度最高的元素 */
.label {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1;
  display: inline-block;
}
.label--ink { color: var(--ink-2); }
.label--light { color: rgba(255, 255, 255, .82); }
.label--accent { color: var(--accent); }

/* 衬线展示体 */
.display {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: .01em;
  margin: 0;
}
.display--xl { font-size: clamp(40px, 6.4vw, 92px); line-height: 1.04; }
.display--lg { font-size: clamp(34px, 4.6vw, 62px); }
.display--md { font-size: clamp(26px, 3vw, 40px); }
.display--sm { font-size: clamp(21px, 2vw, 27px); }

/* 衬线斜体 —— 仅用于拉丁文字（中文无真斜体，会显示为劣质倾斜，勿用） */
.italic { font-family: var(--font-display); font-style: italic; font-weight: 400; }

/* 正文段落 */
.prose p {
  font-size: 17px;
  line-height: 1.95;
  color: var(--ink-2);
  margin: 0 0 1.6em;
}
.prose p:last-child { margin-bottom: 0; }

.lead {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.1vw, 26px);
  line-height: 1.75;
  letter-spacing: .02em;
  color: var(--ink-2);
}

/* 顶部小序号，编辑感装饰 */
.num {
  font-family: var(--font-sans);
  font-size: 10px;
  letter-spacing: .18em;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}

/* ---------- 5. 布局 ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gut); }
.wrap--narrow { max-width: 860px; }
.wrap--text { max-width: 700px; }

.section { padding: clamp(72px, 9vw, 138px) 0; }
.section--tight { padding: clamp(52px, 6vw, 88px) 0; }

.rule { height: 1px; background: var(--line); border: 0; margin: 0; }

/* 区块表头：左侧微标签 + 标题，右侧动作 */
.sec-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(36px, 4.5vw, 64px);
}
.sec-head__left { display: flex; flex-direction: column; gap: 14px; }
.sec-head__right { display: flex; align-items: center; gap: 28px; }

/* ---------- 6. 链接与按钮 ---------- */

/* 动画下划线 */
.ulink {
  position: relative;
  display: inline-block;
  padding-bottom: 2px;
}
.ulink::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: currentColor;
  transform: scaleX(1);
  transform-origin: right;
  transition: transform .5s var(--ease);
}
.ulink:hover::after { transform: scaleX(0); transform-origin: left; }

/* 带箭头的文字动作 */
.tlink {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink);
  transition: color .35s var(--ease);
}
.tlink svg { transition: transform .5s var(--ease); }
.tlink:hover { color: var(--accent); }
.tlink:hover svg { transform: translateX(6px); }

/* 线框按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ink);
  background: transparent;
  transition: background-color .4s var(--ease), color .4s var(--ease), border-color .4s var(--ease);
}
.btn:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }

.btn--solid {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.btn--solid:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ---------- 7. 页头 ---------- */
.hdr {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 90;
  background: var(--bg);                                   /* 老浏览器降级 */
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .45s var(--ease), background-color .45s var(--ease);
}
.hdr.is-scrolled { border-bottom-color: var(--line); }

.hdr__in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  height: 74px;
}

/* Logo */
.logo { display: flex; align-items: baseline; gap: 12px; }
.logo__mark {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 400;
  line-height: 1;
  letter-spacing: .16em;
  color: var(--ink);
}
.logo__mark span { font-size: .62em; letter-spacing: .12em; }
.logo__sub {
  font-size: 8.5px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--faint);
  padding-left: 12px;
  border-left: 1px solid var(--line);
}

/* 导航 */
.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  position: relative;
  padding: 8px 14px;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ink-2);
  transition: color .35s var(--ease);
}
.nav a::after {
  content: '';
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .5s var(--ease);
}
.nav a:hover { color: var(--ink); }
.nav a:hover::after { transform: scaleX(1); }
.nav a.is-active { color: var(--ink); }
.nav a.is-active::after { transform: scaleX(1); background: var(--ink); }

/* 右侧工具区 */
.hdr__tools { display: flex; align-items: center; gap: 6px; }

.icon-btn {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border: 1px solid transparent;
  border-radius: 50%;
  color: var(--ink-2);
  transition: color .35s var(--ease), border-color .35s var(--ease), transform .35s var(--ease);
}
.icon-btn:hover { color: var(--ink); border-color: var(--line); }
.icon-btn:active { transform: scale(.92); }

/* 主题切换：图标互斥显示 */
.ico-sun, .ico-moon { transition: opacity .35s var(--ease), transform .5s var(--ease); }
:root[data-theme='light'] .ico-sun { display: none; }
:root[data-theme='dark'] .ico-moon { display: none; }

/* 汉堡 */
.burger { display: none; }
.burger span {
  display: block;
  width: 18px; height: 1px;
  background: currentColor;
  transition: transform .45s var(--ease), opacity .3s var(--ease);
}
.burger span + span { margin-top: 5px; }
.burger.is-on span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger.is-on span:nth-child(2) { opacity: 0; }
.burger.is-on span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 8. 首屏 ---------- */
.hero {
  position: relative;
  margin-top: 74px;
  min-height: min(88vh, 860px);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--bg-sunk);
}
.hero__media { position: absolute; inset: 0; }
.hero__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transform: scale(1.06);
  animation: heroIn 2.4s var(--ease) forwards;
}
@keyframes heroIn { to { transform: scale(1); } }

.hero__veil {
  position: absolute; inset: 0;
  background:
    linear-gradient(to top, rgba(14,10,6,.72) 0%, rgba(14,10,6,.28) 38%, rgba(14,10,6,.06) 66%, rgba(14,10,6,.22) 100%);
}

.hero__in {
  position: relative;
  width: 100%;
  padding-bottom: clamp(48px, 6vw, 88px);
  padding-top: 120px;
  display: flex;
  justify-content: flex-end;
}
.hero__box {
  max-width: 640px;
  text-align: right;
  color: #fff;
  padding-right: clamp(0px, 2vw, 34px);
  border-right: 1px solid rgba(255,255,255,.3);
}
.hero__eyebrow { color: rgba(255,255,255,.7); margin-bottom: 26px; display: block; }
.hero__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(38px, 5.6vw, 78px);
  line-height: 1.08;
  letter-spacing: .045em;
  color: #fff;
  margin: 0 0 30px;
  text-shadow: 0 2px 40px rgba(0,0,0,.28);
}
.hero__sub {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(15px, 1.4vw, 19px);
  color: rgba(255,255,255,.78);
  letter-spacing: .06em;
}

/* 滚动提示 */
.hero__scroll {
  position: absolute;
  left: var(--gut);
  bottom: clamp(48px, 6vw, 88px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  color: rgba(255,255,255,.6);
}
.hero__scroll .label { color: rgba(255,255,255,.55); writing-mode: vertical-rl; letter-spacing: .3em; }
.hero__scroll i { display: block; width: 1px; height: 54px; background: linear-gradient(to bottom, rgba(255,255,255,.55), transparent); animation: scrollPulse 2.2s var(--ease) infinite; }
@keyframes scrollPulse { 0%,100% { opacity: .35; transform: scaleY(.6); transform-origin: top; } 50% { opacity: 1; transform: scaleY(1); } }

/* ---------- 9. 陈述带 ---------- */
.statement { position: relative; }
.statement__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
  gap: clamp(32px, 5vw, 80px);
}
.statement__media { position: relative; overflow: hidden; min-height: 440px; }
.statement__media img { width: 100%; height: 100%; object-fit: cover; }
.statement__body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 28px;
  padding: clamp(20px, 3vw, 48px) 0;
}
.statement__text {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.4vw, 48px);
  font-weight: 300;
  line-height: 1.34;
  letter-spacing: .01em;
  color: var(--ink);
  margin: 0;
}
.statement__text em {
  font-style: normal;
  color: var(--accent);
  border-bottom: 1px solid currentColor;
  padding-bottom: .04em;
}

/* ---------- 10. 文章卡片 ---------- */

/* 大图特稿 */
.fig {
  position: relative;
  overflow: hidden;
  background: var(--bg-sunk);
  border-radius: var(--r);
}
.fig img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease), filter .8s var(--ease);
}
.fig::after {
  content: '';
  position: absolute; inset: 0;
  background: var(--overlay);
  opacity: 0;
  transition: opacity .7s var(--ease);
}
a:hover > .fig img, .fig--hover:hover img { transform: scale(1.045); }

.ratio-16-9 { aspect-ratio: 16 / 9; }
.ratio-4-3  { aspect-ratio: 4 / 3; }
.ratio-3-2  { aspect-ratio: 3 / 2; }
.ratio-1-1  { aspect-ratio: 1 / 1; }
.ratio-3-4  { aspect-ratio: 3 / 4; }

/* 特稿布局 */
.feature { display: grid; grid-template-columns: 1.55fr 1fr; gap: clamp(28px, 4vw, 64px); align-items: center; }
.feature__body { display: flex; flex-direction: column; gap: 22px; }
.feature__title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.4vw, 46px);
  font-weight: 400;
  line-height: 1.16;
  margin: 0;
  transition: color .4s var(--ease);
}
.feature:hover .feature__title { color: var(--accent); }

/* 卡片网格 */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(28px, 3.4vw, 52px) clamp(22px, 2.6vw, 40px); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(32px, 4vw, 60px); }

.card { display: flex; flex-direction: column; gap: 20px; }
.card__meta {
  display: flex; align-items: center; gap: 12px;
  color: var(--muted);
}
.card__meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--faint); }
.card__title {
  font-family: var(--font-display);
  font-size: clamp(21px, 2.1vw, 28px);
  font-weight: 400;
  line-height: 1.28;
  margin: 0;
  transition: color .4s var(--ease);
}
.card:hover .card__title { color: var(--accent); }
.card__ex {
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 列表式文章行 */
.rows { border-top: 1px solid var(--line); }
.row {
  display: grid;
  grid-template-columns: 88px 1fr auto;
  align-items: center;
  gap: clamp(16px, 3vw, 44px);
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
  transition: padding-left .5s var(--ease), background-color .4s var(--ease);
}
.row:hover { padding-left: 14px; }
.row__date { font-size: 11px; letter-spacing: .12em; color: var(--faint); font-variant-numeric: tabular-nums; }
.row__title {
  font-family: var(--font-display);
  font-size: clamp(19px, 1.9vw, 26px);
  font-weight: 400;
  margin: 0 0 6px;
  line-height: 1.3;
  transition: color .4s var(--ease);
}
.row:hover .row__title { color: var(--accent); }
.row__place { font-size: 11px; letter-spacing: .1em; color: var(--muted); }
.row__go {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muted);
  transition: all .45s var(--ease);
}
.row:hover .row__go { background: var(--ink); border-color: var(--ink); color: var(--bg); }

/* ---------- 11. 相册 ---------- */
.strip {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(280px, 26%);
  gap: clamp(12px, 1.4vw, 20px);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 18px;
  margin: 0 calc(var(--gut) * -1);
  padding-inline: var(--gut);
  scrollbar-width: thin;
}
.strip > * { scroll-snap-align: start; }
.strip .fig { aspect-ratio: 4 / 5; }

/* 相册瀑布流 */
.masonry { columns: 3; column-gap: clamp(14px, 1.6vw, 24px); }
.masonry__item {
  break-inside: avoid;
  margin-bottom: clamp(14px, 1.6vw, 24px);
  display: block;
  cursor: zoom-in;
}
.masonry__item .fig { aspect-ratio: 4 / 3; }
.masonry__item.tall .fig { aspect-ratio: 3 / 4; }
.masonry__cap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding-top: 12px;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity .45s var(--ease), transform .45s var(--ease);
}
.masonry__item:hover .masonry__cap { opacity: 1; transform: none; }
.masonry__name { font-family: var(--font-display); font-style: italic; font-size: 17px; color: var(--ink); }
.masonry__place { font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }

/* 过滤器 */
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 9px 17px;
  border: 1px solid var(--line);
  border-radius: 100px;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  transition: all .4s var(--ease);
}
.chip:hover { color: var(--ink); border-color: var(--ink); }
.chip.is-on { background: var(--ink); border-color: var(--ink); color: var(--bg); }

/* ---------- 12. 关于 ---------- */
.about-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(36px, 5vw, 96px); align-items: start; }
.portrait { position: relative; }
.portrait .fig { aspect-ratio: 4 / 5; }
.portrait__tag {
  position: absolute;
  left: -1px; bottom: -1px;
  background: var(--bg);
  padding: 14px 20px 0 0;
}

.facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px 40px; margin-top: 40px; }
.fact { border-top: 1px solid var(--line); padding-top: 14px; }
.fact__k { display: block; margin-bottom: 8px; }
.fact__v { font-family: var(--font-display); font-size: 19px; color: var(--ink); }

/* 时间线 */
.tl { margin-top: 8px; }
.tl__item {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: clamp(20px, 3vw, 44px);
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.tl__item:first-child { border-top: 1px solid var(--line); }
.tl__year {
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--faint);
  line-height: 1;
  transition: color .45s var(--ease);
}
.tl__item:hover .tl__year { color: var(--accent); }
.tl__t { font-family: var(--font-display); font-size: 22px; margin: 0 0 8px; font-weight: 400; }
.tl__d { font-size: 14px; color: var(--muted); line-height: 1.8; margin: 0; }

/* ---------- 13. 社交 / 二维码 ---------- */
.social-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.soc {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 30px 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background-color .45s var(--ease);
  position: relative;
}
.soc:hover { background: var(--bg-sunk); }
.soc__top { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.soc__handle { font-family: var(--font-display); font-size: 20px; color: var(--ink); }
.soc__qr { width: 92px; height: 92px; border-radius: var(--r); }
.soc__qr img { width: 100%; height: 100%; object-fit: contain; background: #fff; padding: 6px; border-radius: var(--r); }
.soc__arw { color: var(--faint); transition: transform .5s var(--ease), color .4s var(--ease); }
.soc:hover .soc__arw { transform: translate(4px, -4px); color: var(--accent); }

/* ---------- 14. 文章详情页 ---------- */
.progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0;
  background: var(--accent);
  z-index: 100;
  transition: width .12s linear;
}

.article-hd { padding: calc(74px + clamp(48px, 7vw, 96px)) 0 clamp(36px, 4vw, 56px); text-align: center; }
.article-hd__meta {
  display: flex; align-items: center; justify-content: center;
  gap: 14px; flex-wrap: wrap;
  margin-bottom: 30px;
}
.article-hd__title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4.6vw, 62px);
  font-weight: 400;
  line-height: 1.16;
  letter-spacing: .01em;
  margin: 0 auto 22px;
  max-width: 17em;
}
.article-hd__sub {
  font-family: var(--font-display);
  font-size: clamp(17px, 1.7vw, 22px);
  letter-spacing: .04em;
  color: var(--muted);
  max-width: 30em;
  margin: 0 auto;
  line-height: 1.7;
}
.article-hd__by {
  display: inline-flex; align-items: center; gap: 12px;
  margin-top: 40px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}
.article-hd__by img { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; }

.cover { padding-bottom: clamp(40px, 5vw, 72px); }
.cover .fig { aspect-ratio: 16 / 8; }

.article-body { padding-bottom: clamp(60px, 7vw, 100px); }
.article-body .prose { max-width: 700px; margin: 0 auto; }

/* 首字下沉 */
.prose > p:first-of-type::first-letter {
  font-family: var(--font-display);
  float: left;
  font-size: 3.6em;
  line-height: .84;
  padding: .06em .12em 0 0;
  color: var(--ink);
  font-weight: 400;
}

.prose blockquote {
  margin: 2.4em 0;
  padding: 4px 0 4px 30px;
  border-left: 1px solid var(--accent);
  font-family: var(--font-display);
  font-size: clamp(21px, 2.2vw, 27px);
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--ink);
}

.prose h2 {
  font-family: var(--font-display);
  font-size: clamp(25px, 2.6vw, 34px);
  font-weight: 400;
  line-height: 1.3;
  margin: 2.2em 0 .7em;
  padding-top: 1.2em;
  border-top: 1px solid var(--line);
}
.prose h2::before {
  content: '';
  display: block;
  width: 26px; height: 1px;
  background: var(--accent);
  margin-bottom: 22px;
}

.prose figure { margin: 2.6em 0; }
.prose figure img { width: 100%; border-radius: var(--r); }
.prose figcaption { margin-top: 12px; font-size: 12px; color: var(--muted); letter-spacing: .04em; text-align: center; }

/* 上下篇 */
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border-block: 1px solid var(--line); }
.pager__i {
  background: var(--bg);
  padding: clamp(30px, 4vw, 52px);
  display: flex; flex-direction: column; gap: 14px;
  transition: background-color .45s var(--ease);
}
.pager__i:hover { background: var(--bg-sunk); }
.pager__i--next { text-align: right; align-items: flex-end; }
.pager__t { font-family: var(--font-display); font-size: clamp(19px, 2vw, 27px); line-height: 1.3; transition: color .4s var(--ease); }
.pager__i:hover .pager__t { color: var(--accent); }

/* ---------- 15. 页脚 ---------- */
.ftr { border-top: 1px solid var(--line); padding: clamp(52px, 6vw, 84px) 0 40px; margin-top: clamp(60px, 7vw, 110px); }
.ftr__top {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 40px; flex-wrap: wrap; padding-bottom: 42px;
}
.ftr__mail {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 42px);
  color: var(--ink);
  transition: color .4s var(--ease);
}
.ftr__mail:hover { color: var(--accent); }
.ftr__cols { display: flex; gap: clamp(40px, 6vw, 90px); }
.ftr__col { display: flex; flex-direction: column; gap: 14px; }
.ftr__col a { font-size: 13px; color: var(--muted); transition: color .35s var(--ease); }
.ftr__col a:hover { color: var(--ink); }
.ftr__bot {
  display: flex; justify-content: space-between; align-items: center;
  gap: 24px; flex-wrap: wrap;
  padding-top: 28px; border-top: 1px solid var(--line);
  font-size: 11.5px; color: var(--faint); letter-spacing: .04em;
}
.top-btn { display: inline-flex; align-items: center; gap: 8px; font-size: 10px; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); transition: color .35s var(--ease); }
.top-btn:hover { color: var(--ink); }

/* ---------- 16. 灯箱 ---------- */
.lb {
  position: fixed; inset: 0; z-index: 200;
  background: var(--bg-sunk);                              /* 老浏览器降级 */
  background: color-mix(in srgb, var(--bg-sunk) 96%, black);
  display: none;
  place-items: center;
  padding: clamp(20px, 4vw, 60px);
  opacity: 0;
  transition: opacity .4s var(--ease);
}
.lb.is-on { display: grid; }
.lb.is-vis { opacity: 1; }
.lb__img { max-width: min(1100px, 92vw); max-height: 78vh; object-fit: contain; border-radius: var(--r); box-shadow: var(--shadow); }
.lb__cap { margin-top: 22px; text-align: center; color: var(--ink-2); }
.lb__cap b { font-family: var(--font-display); font-style: italic; font-weight: 400; font-size: 20px; display: block; margin-bottom: 4px; }
.lb__close { position: absolute; top: 24px; right: 24px; }
.lb__nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 52px; height: 52px; border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid var(--line); color: var(--ink-2);
  background: var(--bg);                                   /* 老浏览器降级 */
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  transition: all .4s var(--ease);
}
.lb__nav:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.lb__prev { left: clamp(12px, 2vw, 36px); }
.lb__next { right: clamp(12px, 2vw, 36px); }

/* ---------- 17. 入场动画 ---------- */
/* 只在 JS 可用时才隐藏，避免脚本失效导致内容不可见 */
html.js .rv { opacity: 0; transform: translateY(26px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
html.js .rv.is-in { opacity: 1; transform: none; }
.rv[data-d="1"] { transition-delay: .09s; }
.rv[data-d="2"] { transition-delay: .18s; }
.rv[data-d="3"] { transition-delay: .27s; }
.rv[data-d="4"] { transition-delay: .36s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
  .rv { opacity: 1; transform: none; }
}

/* ---------- 18. 响应式 ---------- */
@media (max-width: 1080px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .masonry { columns: 2; }
  .feature { grid-template-columns: 1fr; gap: 28px; }
  .statement__grid { grid-template-columns: 1fr; }
  .statement__media { min-height: 320px; }
  .about-grid { grid-template-columns: 1fr; }
  .portrait { max-width: 380px; }
}

@media (max-width: 820px) {
  .nav { display: none; }
  .burger { display: grid; }

  /* 移动端抽屉 */
  .nav.is-open {
    display: flex;
    position: fixed;
    inset: 74px 0 0 0;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0;
    background: var(--bg);
    padding: 24px var(--gut) 60px;
    overflow-y: auto;
    animation: drawerIn .5s var(--ease);
  }
  @keyframes drawerIn { from { opacity: 0; transform: translateY(-10px); } }
  .nav.is-open a {
    width: 100%;
    padding: 22px 0;
    font-family: var(--font-display);
    font-size: 30px;
    letter-spacing: .02em;
    text-transform: none;
    font-weight: 400;
    border-bottom: 1px solid var(--line);
    color: var(--ink);
  }
  .nav.is-open a::after { display: none; }

  .hero { min-height: 76vh; }
  .hero__in { justify-content: flex-start; }
  .hero__box { text-align: left; border-right: 0; border-left: 1px solid rgba(255,255,255,.3); padding: 0 0 0 24px; }
  .hero__scroll { display: none; }

  .grid-3 { grid-template-columns: 1fr; gap: 48px; }
  .masonry { columns: 1; }
  .facts { grid-template-columns: 1fr; }
  .row { grid-template-columns: 1fr auto; gap: 16px; }
  .row__date { grid-column: 1 / -1; }
  .pager { grid-template-columns: 1fr; }
  .pager__i--next { text-align: left; align-items: flex-start; }
  .strip { grid-auto-columns: 74%; }
  .ftr__cols { flex-wrap: wrap; gap: 36px; }
}

@media (max-width: 560px) {
  .logo__sub { display: none; }
  .sec-head { align-items: flex-start; }
  .article-hd__title { font-size: 30px; }
  .prose > p:first-of-type::first-letter { font-size: 3em; }
}

/* ---------- 19. 打印 ---------- */
@media print {
  .hdr, .progress, .lb, .hero__scroll, .pager, .ftr { display: none !important; }
  body { background: #fff; color: #000; }
  .article-body .prose { max-width: none; }
}