/* ============================================================
   墨迹 MOJI · 全局样式
   1. 设计变量   2. 基础重置   3. 通用组件
   4. 页头导航   5. 搜索面板  6. 封面与卡片
   ============================================================ */

/* 1. 设计变量 ------------------------------------------------ */
:root {
  --paper: #fbfaf7;
  --paper-2: #f4f2ec;
  --paper-3: #ece9e1;
  --ink: #14140f;
  --ink-2: #4c4c44;
  --ink-3: #8b8a80;
  --line: #e3e0d8;
  --line-strong: #cfcbc0;
  --accent: #b24a2e;
  --accent-2: #d98a6a;
  --accent-soft: rgba(178, 74, 46, 0.1);
  --shadow-sm: 0 1px 2px rgba(20, 20, 15, 0.04);
  --shadow-md: 0 18px 40px -24px rgba(20, 20, 15, 0.35);
  --shadow-lg: 0 40px 80px -40px rgba(20, 20, 15, 0.45);
  --radius: 16px;
  --radius-sm: 10px;
  --header-h: 68px;
  --container: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --serif: "Songti SC", "Source Han Serif SC", "Noto Serif SC", "SimSun", Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  color-scheme: light;
}

[data-theme="dark"] {
  --paper: #131312;
  --paper-2: #1a1a18;
  --paper-3: #222220;
  --ink: #f2f0eb;
  --ink-2: #b9b6ad;
  --ink-3: #7e7c74;
  --line: #2b2b28;
  --line-strong: #3d3d39;
  --accent: #e0805d;
  --accent-2: #c26246;
  --accent-soft: rgba(224, 128, 93, 0.14);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 18px 40px -24px rgba(0, 0, 0, 0.7);
  --shadow-lg: 0 40px 80px -40px rgba(0, 0, 0, 0.8);
  color-scheme: dark;
}

/* 2. 基础重置 ------------------------------------------------ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 24px);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  transition: background-color 0.4s var(--ease), color 0.4s var(--ease);
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote, ul, ol, dl, pre {
  margin: 0;
}

.noscript {
  margin: 0;
  padding: 14px 24px;
  background: var(--ink);
  color: var(--paper);
  font-size: 14px;
  line-height: 1.6;
  text-align: center;
}

ul, ol {
  padding: 0;
  list-style: none;
}

img, svg, video {
  display: block;
  max-width: 100%;
}

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

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

input {
  font: inherit;
  color: inherit;
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--line-strong);
  border: 3px solid var(--paper);
  border-radius: 999px;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--ink);
  color: var(--paper);
  border-radius: 0 0 8px 8px;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
}

/* 3. 通用组件 ------------------------------------------------ */
.container {
  width: min(var(--container), 100% - 56px);
  margin-inline: auto;
}

.container--narrow {
  width: min(920px, 100% - 56px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--accent);
}

.section {
  padding-block: clamp(64px, 9vw, 112px);
  border-top: 1px solid var(--line);
}

.section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: clamp(32px, 4vw, 56px);
}

.section__title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-top: 12px;
}

.section__desc {
  max-width: 34ch;
  color: var(--ink-3);
  font-size: 0.95rem;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-2);
  padding-bottom: 4px;
  border-bottom: 1px solid var(--line-strong);
  transition: color 0.25s ease, border-color 0.25s ease, gap 0.25s ease;
  white-space: nowrap;
}

.link-arrow:hover {
  color: var(--accent);
  border-color: var(--accent);
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 48px;
  padding-inline: 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.94rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: transform 0.25s var(--ease), background-color 0.25s ease,
    color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--ink);
  color: var(--paper);
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
  background: var(--accent);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn--ghost {
  border-color: var(--line-strong);
  color: var(--ink);
}

.btn--ghost:hover {
  border-color: var(--ink);
  background: var(--paper-2);
}

.tag {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding-inline: 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--ink-2);
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

a.tag:hover,
.tag.is-active {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}

.meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

.meta__dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.6;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  will-change: opacity, transform;
}

[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* 4. 页头导航 ------------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  height: var(--header-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  transition: border-color 0.3s ease, background-color 0.3s ease;
}

.site-header.is-stuck {
  border-bottom-color: var(--line);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1;
  transition: background-color 0.3s ease, color 0.3s ease, transform 0.4s var(--ease);
}

.brand:hover .brand__mark {
  background: var(--ink);
  color: var(--paper);
  transform: rotate(-6deg);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand__text strong {
  font-family: var(--serif);
  font-size: 17px;
  letter-spacing: 0.18em;
  font-weight: 600;
}

.brand__text span {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.34em;
  color: var(--ink-3);
  margin-top: 3px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav__link {
  position: relative;
  padding: 8px 14px;
  font-size: 0.9rem;
  color: var(--ink-2);
  border-radius: 999px;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.nav__link:hover {
  color: var(--ink);
  background: var(--paper-2);
}

.nav__link.is-active {
  color: var(--ink);
}

.nav__link.is-active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 1px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  transform: translateX(-50%);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 38px;
  min-width: 38px;
  padding-inline: 9px;
  border-radius: 999px;
  color: var(--ink-2);
  transition: color 0.2s ease, background-color 0.2s ease;
}

.icon-btn:hover {
  color: var(--ink);
  background: var(--paper-2);
}

.icon-btn svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-btn kbd {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 1px 5px;
}

.nav-toggle {
  display: none;
}

/* 5. 搜索面板 ------------------------------------------------ */
.search-overlay {
  position: fixed;
  inset: 0;
  z-index: 140;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 11vh 20px 20px;
  background: rgba(16, 16, 12, 0.44);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.28s ease, visibility 0.28s ease;
}

.search-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.search-panel {
  width: min(680px, 100%);
  max-height: 74vh;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: translateY(-14px) scale(0.985);
  transition: transform 0.32s var(--ease);
}

.search-overlay.is-open .search-panel {
  transform: none;
}

.search-field {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
}

.search-field svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  stroke: var(--ink-3);
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
}

.search-field input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: none;
  background: none;
  font-size: 1.05rem;
}

.search-field input::placeholder {
  color: var(--ink-3);
}

.search-field kbd,
.search-foot kbd {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 2px 6px;
}

.search-results {
  overflow-y: auto;
  padding: 10px;
}

.search-group {
  padding: 10px 12px 6px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.search-item {
  display: block;
  padding: 12px 14px;
  border-radius: 12px;
  transition: background-color 0.16s ease;
}

.search-item.is-selected,
.search-item:hover {
  background: var(--paper-2);
}

.search-item__title {
  display: block;
  font-family: var(--serif);
  font-size: 1.04rem;
  line-height: 1.5;
  color: var(--ink);
}

.search-item__meta {
  display: flex;
  gap: 10px;
  margin-top: 5px;
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-3);
}

.search-item__title mark {
  background: none;
  color: var(--accent);
  border-bottom: 1px solid currentColor;
}

.search-empty {
  padding: 36px 20px 44px;
  text-align: center;
  color: var(--ink-3);
  font-size: 0.92rem;
}

.search-empty strong {
  display: block;
  font-family: var(--serif);
  font-size: 1.1rem;
  color: var(--ink-2);
  margin-bottom: 6px;
}

.search-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  padding: 11px 22px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--ink-3);
}

/* 6. 封面与卡片 ---------------------------------------------- */
.cover {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: var(--paper-3);
}

.cover::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(120% 90% at 18% 8%, rgba(255, 255, 255, 0.55), transparent 60%),
    linear-gradient(140deg, var(--c1), var(--c2));
  z-index: -2;
}

.cover::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.5;
  z-index: -1;
  background-image: var(--pattern);
  background-size: var(--pattern-size, 18px 18px);
}

.cover__mark {
  position: absolute;
  right: 0.04em;
  bottom: -0.2em;
  font-family: var(--serif);
  font-size: clamp(5.5rem, 13vw, 9rem);
  line-height: 0.82;
  letter-spacing: -0.05em;
  color: var(--cover-ink);
  opacity: 0.17;
  transition: transform 0.9s var(--ease), opacity 0.6s ease;
  pointer-events: none;
}

.cover__label {
  position: absolute;
  top: 18px;
  left: 20px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cover-ink);
  opacity: 0.72;
}

.cover__foot {
  position: absolute;
  left: 20px;
  bottom: 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--paper) 72%, transparent);
  backdrop-filter: blur(6px);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--ink-2);
}

.cover--1 {
  --c1: #ece4d4;
  --c2: #d7c8ac;
  --cover-ink: #2b2416;
  --pattern: repeating-linear-gradient(45deg, rgba(43, 36, 22, 0.09) 0 1px, transparent 1px 16px);
}

.cover--2 {
  --c1: #e2e9ec;
  --c2: #b9c9d3;
  --cover-ink: #15232b;
  --pattern:
    linear-gradient(rgba(21, 35, 43, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 35, 43, 0.1) 1px, transparent 1px);
  --pattern-size: 26px 26px;
}

.cover--3 {
  --c1: #e8e9dd;
  --c2: #c8ccb4;
  --cover-ink: #232a1b;
  --pattern: radial-gradient(rgba(35, 42, 27, 0.16) 1px, transparent 1.4px);
  --pattern-size: 14px 14px;
}

.cover--4 {
  --c1: #f2e0d9;
  --c2: #dbbcb0;
  --cover-ink: #2f1d17;
  --pattern: radial-gradient(circle at 82% 20%, transparent 0 46px, rgba(47, 29, 23, 0.13) 46px 47px, transparent 47px),
    radial-gradient(circle at 82% 20%, transparent 0 92px, rgba(47, 29, 23, 0.1) 92px 93px, transparent 93px);
  --pattern-size: 100% 100%;
}

.cover--5 {
  --c1: #e9e7e1;
  --c2: #cecbc2;
  --cover-ink: #1f1f1b;
  --pattern: repeating-linear-gradient(0deg, rgba(31, 31, 27, 0.09) 0 1px, transparent 1px 11px);
}

.cover--6 {
  --c1: #e6dfeb;
  --c2: #c6bcd3;
  --cover-ink: #241c2b;
  --pattern: repeating-conic-gradient(from 0deg at 78% 82%, rgba(36, 28, 43, 0.09) 0deg 6deg, transparent 6deg 14deg);
  --pattern-size: 100% 100%;
}

.card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.45s var(--ease), border-color 0.3s ease, box-shadow 0.45s var(--ease);
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
}

.card:hover .cover__mark {
  transform: translate(-6px, -6px) scale(1.03);
  opacity: 0.24;
}

.card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 11px;
  padding: 22px;
}

.card__title {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: -0.005em;
  transition: color 0.25s ease;
}

.card:hover .card__title {
  color: var(--accent);
}

.card__excerpt {
  color: var(--ink-3);
  font-size: 0.885rem;
  line-height: 1.72;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.card--lg .card__title {
  font-size: clamp(1.35rem, 2.4vw, 1.75rem);
  line-height: 1.42;
}

.card--lg .card__body {
  padding: 26px 26px 28px;
}

.card--row {
  flex-direction: row;
  align-items: stretch;
}

.card--row .cover {
  width: 34%;
  flex-shrink: 0;
}

.card--row .cover__mark {
  font-size: clamp(3rem, 7vw, 5rem);
}

/* 7. 首页 ---------------------------------------------------- */
.hero {
  position: relative;
  padding-block: clamp(48px, 7.5vw, 92px) clamp(40px, 6vw, 72px);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 84px 84px;
  mask-image: radial-gradient(80% 70% at 70% 10%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(80% 70% at 70% 10%, #000 0%, transparent 72%);
  opacity: 0.55;
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(32px, 5vw, 76px);
  align-items: center;
}

.hero__title {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 5.6vw, 4.5rem);
  font-weight: 600;
  line-height: 1.16;
  letter-spacing: -0.025em;
  margin-block: 20px 26px;
}

.hero__title em {
  font-style: normal;
  color: var(--accent);
}

.hero__lead {
  max-width: 44ch;
  color: var(--ink-2);
  font-size: 1.02rem;
  line-height: 1.85;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero__note {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 30px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}

.hero__pulse {
  position: relative;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.hero__pulse::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  animation: pulse 2.4s var(--ease) infinite;
}

@keyframes pulse {
  0% { transform: scale(0.6); opacity: 0.9; }
  100% { transform: scale(1.8); opacity: 0; }
}

.hero__feature {
  position: relative;
}

.hero__feature .card__body {
  padding: 24px 24px 26px;
}

.hero__badge {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: clamp(44px, 6vw, 76px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stat {
  padding: 24px 22px;
  border-left: 1px solid var(--line);
}

.stat:first-child {
  border-left: 0;
  padding-left: 0;
}

.stat__num {
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.stat__num span {
  font-size: 0.6em;
  color: var(--ink-3);
  margin-left: 2px;
}

.stat__label {
  display: block;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.featured-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
  gap: 24px;
}

.featured-side {
  display: grid;
  gap: 24px;
  align-content: start;
}

.post-row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  gap: 22px;
  align-items: start;
  padding-block: 26px;
  border-bottom: 1px solid var(--line);
}

.post-row:first-child {
  border-top: 1px solid var(--line);
}

.post-row__index {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  padding-top: 7px;
}

.post-row__title {
  font-family: var(--serif);
  font-size: clamp(1.15rem, 2vw, 1.42rem);
  font-weight: 600;
  line-height: 1.45;
  transition: color 0.25s ease;
}

.post-row:hover .post-row__title {
  color: var(--accent);
}

.post-row__excerpt {
  margin-top: 7px;
  font-size: 0.89rem;
  color: var(--ink-3);
  max-width: 64ch;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-row__meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  padding-top: 5px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  white-space: nowrap;
}

.topics {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.topic {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  padding: 11px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.92rem;
  color: var(--ink-2);
  transition: border-color 0.25s ease, color 0.25s ease, background-color 0.25s ease, transform 0.25s var(--ease);
}

.topic:hover {
  border-color: var(--ink);
  color: var(--ink);
  transform: translateY(-2px);
}

.topic span {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-3);
}

.subscribe {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 40px;
  align-items: center;
  padding: clamp(32px, 5vw, 56px);
  border-radius: 24px;
  background: var(--ink);
  color: var(--paper);
}

.subscribe::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 0 0 40px rgba(255, 255, 255, 0.04), 0 0 0 80px rgba(255, 255, 255, 0.03);
  pointer-events: none;
}

.subscribe h2 {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  line-height: 1.3;
  font-weight: 600;
}

.subscribe p {
  margin-top: 12px;
  font-size: 0.92rem;
  color: color-mix(in srgb, var(--paper) 68%, transparent);
  max-width: 42ch;
}

.subscribe__form {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.subscribe__form input {
  flex: 1;
  min-width: 180px;
  height: 50px;
  padding-inline: 20px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.07);
  color: var(--paper);
  outline: none;
  transition: border-color 0.25s ease, background-color 0.25s ease;
}

.subscribe__form input::placeholder {
  color: rgba(255, 255, 255, 0.45);
}

.subscribe__form input:focus {
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.12);
}

.subscribe__form .btn {
  background: var(--paper);
  color: var(--ink);
}

.subscribe__form .btn:hover {
  background: var(--accent);
  color: #fff;
}

.subscribe__hint {
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.42);
}

/* 8. 页脚 ---------------------------------------------------- */
.site-footer {
  margin-top: clamp(56px, 8vw, 96px);
  padding-block: clamp(48px, 6vw, 72px) 26px;
  border-top: 1px solid var(--line);
  background: var(--paper-2);
}

.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(2, minmax(0, 0.7fr));
  gap: 40px;
}

.footer__brand .brand {
  margin-bottom: 18px;
}

.footer__desc {
  max-width: 34ch;
  font-size: 0.9rem;
  color: var(--ink-3);
  line-height: 1.8;
}

.footer__title {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 16px;
}

.footer__list {
  display: grid;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--ink-2);
}

.footer__list a {
  transition: color 0.2s ease;
}

.footer__list a:hover {
  color: var(--accent);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
  align-items: center;
  margin-top: clamp(36px, 5vw, 56px);
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.05em;
  color: var(--ink-3);
}

.footer__bottom a {
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.footer__bottom a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 80;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--paper);
  color: var(--ink-2);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s var(--ease), color 0.2s ease;
}

.to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.to-top:hover {
  color: var(--accent);
}

.to-top svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* 9. 页面标题与列表 ------------------------------------------ */
.page-head {
  padding-block: clamp(44px, 6vw, 78px) clamp(26px, 4vw, 40px);
  border-bottom: 1px solid var(--line);
}

.page-head__title {
  font-family: var(--serif);
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-top: 16px;
}

.page-head__desc {
  max-width: 52ch;
  margin-top: 16px;
  color: var(--ink-3);
  font-size: 0.98rem;
}

.page-head__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 26px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

.toolbar {
  position: sticky;
  top: var(--header-h);
  z-index: 50;
  padding-block: 14px;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}

.toolbar__inner {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.search-inline {
  position: relative;
  flex: 1 1 240px;
  max-width: 340px;
}

.search-inline svg {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  stroke: var(--ink-3);
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  pointer-events: none;
}

.search-inline input {
  width: 100%;
  height: 42px;
  padding: 0 16px 0 40px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  outline: none;
  font-size: 0.89rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search-inline input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.search-inline input::placeholder {
  color: var(--ink-3);
}

.chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chip {
  height: 34px;
  padding-inline: 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.82rem;
  color: var(--ink-2);
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.chip:hover {
  border-color: var(--ink-3);
  color: var(--ink);
}

.chip.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.sort-select {
  height: 42px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink-2);
  font-size: 0.85rem;
  outline: none;
  cursor: pointer;
}

.result-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 26px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  padding-block: clamp(28px, 4vw, 44px) 0;
}

.grid-enter {
  animation: gridEnter 0.5s var(--ease) both;
}

@keyframes gridEnter {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.empty {
  padding: clamp(56px, 9vw, 96px) 24px;
  text-align: center;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  margin-block: 32px;
}

.empty__title {
  font-family: var(--serif);
  font-size: 1.35rem;
  color: var(--ink);
}

.empty__desc {
  margin-top: 10px;
  color: var(--ink-3);
  font-size: 0.9rem;
}

.load-more {
  display: flex;
  justify-content: center;
  padding-block: 40px 8px;
}

/* 10. 文章页 ------------------------------------------------ */
.reading-bar {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 150;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.12s linear;
}

.article {
  padding-block: clamp(36px, 5vw, 64px) 0;
}

.article__head {
  max-width: 820px;
  margin-inline: auto;
  text-align: center;
}

.article__cat {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.article__cat::before,
.article__cat::after {
  content: "";
  width: 24px;
  height: 1px;
  background: currentColor;
  opacity: 0.5;
}

.article__title {
  font-family: var(--serif);
  font-size: clamp(2rem, 4.6vw, 3.1rem);
  font-weight: 600;
  line-height: 1.28;
  letter-spacing: -0.02em;
  margin-block: 18px 20px;
}

.article__excerpt {
  max-width: 58ch;
  margin-inline: auto;
  color: var(--ink-3);
  font-size: 1rem;
  line-height: 1.85;
}

.article__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 16px;
  margin-top: 26px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

.article__layout {
  display: grid;
  grid-template-columns: minmax(0, 720px) 228px;
  justify-content: center;
  gap: clamp(32px, 5vw, 76px);
  margin-top: clamp(36px, 5vw, 60px);
}

.article__body {
  min-width: 0;
  padding-bottom: clamp(40px, 6vw, 64px);
  border-bottom: 1px solid var(--line);
}

.prose {
  font-size: 1.055rem;
  line-height: 1.95;
  color: var(--ink-2);
}

.prose > p {
  margin-block: 1.4em;
}

.prose .lead {
  font-size: 1.16rem;
  line-height: 1.85;
  color: var(--ink);
  margin-top: 0;
}

.prose .lead::first-letter {
  float: left;
  font-family: var(--serif);
  font-size: 2.9em;
  line-height: 0.9;
  padding-right: 12px;
  padding-top: 4px;
  color: var(--accent);
}

.prose h2 {
  font-family: var(--serif);
  font-size: clamp(1.42rem, 2.6vw, 1.78rem);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-block: 2.7em 0.9em;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.prose h2::before {
  content: "";
  display: block;
  width: 28px;
  height: 2px;
  background: var(--accent);
  margin-bottom: 18px;
}

.prose h3 {
  font-family: var(--serif);
  font-size: 1.22rem;
  font-weight: 600;
  color: var(--ink);
  margin-block: 2em 0.7em;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.prose a {
  color: var(--ink);
  border-bottom: 1px solid var(--accent-2);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.prose a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.prose strong {
  color: var(--ink);
  font-weight: 600;
}

.prose ul,
.prose ol {
  margin-block: 1.4em;
}

.prose ul > li {
  position: relative;
  padding-left: 1.3em;
  margin-block: 0.6em;
}

.prose ul > li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.78em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent-2);
}

.prose ol {
  counter-reset: item;
}

.prose ol > li {
  position: relative;
  counter-increment: item;
  padding-left: 2.1em;
  margin-block: 0.65em;
}

.prose ol > li::before {
  content: counter(item, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.28em;
  font-family: var(--mono);
  font-size: 0.72em;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.prose blockquote {
  margin-block: 2.1em;
  padding: 22px 26px;
  border-left: 2px solid var(--accent);
  border-radius: 0 12px 12px 0;
  background: var(--paper-2);
  font-family: var(--serif);
  font-size: 1.09em;
  line-height: 1.8;
  color: var(--ink);
}

.prose blockquote p {
  margin: 0;
}

.prose code {
  font-family: var(--mono);
  font-size: 0.85em;
  padding: 2px 6px;
  border-radius: 5px;
  background: var(--paper-3);
  color: var(--ink);
  word-break: break-word;
}

.prose pre {
  position: relative;
  margin-block: 1.9em;
  padding: 52px 22px 22px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #161613;
  overflow-x: auto;
  box-shadow: var(--shadow-sm);
}

.prose pre code {
  display: block;
  padding: 0;
  background: none;
  font-size: 0.845rem;
  line-height: 1.8;
  color: #e6e3da;
  tab-size: 2;
}

.code-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.code-bar__lang {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
}

.code-copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.55);
  padding: 3px 8px;
  border-radius: 6px;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.code-copy:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.tok-k { color: #e69a7a; }
.tok-s { color: #a9c78d; }
.tok-c { color: #7b7a70; font-style: italic; }
.tok-n { color: #d7b783; }
.tok-t { color: #8fbdd8; }

.prose img {
  border-radius: 12px;
  margin-block: 2em;
  height: auto;
}

.prose hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin-block: 2.6em;
}

.prose table {
  width: 100%;
  margin-block: 1.8em;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.prose th,
.prose td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.prose th {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  font-weight: 500;
}

/* 目录 */
.toc {
  position: sticky;
  top: calc(var(--header-h) + 34px);
  align-self: start;
  max-height: calc(100vh - var(--header-h) - 68px);
  overflow-y: auto;
  font-size: 0.85rem;
  padding-bottom: 8px;
}

.toc__title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 14px;
}

.toc a {
  display: block;
  padding: 6px 0 6px 15px;
  border-left: 1px solid var(--line);
  color: var(--ink-3);
  line-height: 1.6;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.toc a:hover {
  color: var(--ink);
}

.toc a.is-active {
  color: var(--accent);
  border-left-color: var(--accent);
}

.toc a[data-level="3"] {
  padding-left: 30px;
  font-size: 0.94em;
}

/* 文章底部 */
.article__foot {
  padding-block: clamp(36px, 5vw, 56px);
}

.article__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.article__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 38px;
  padding-inline: 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.82rem;
  color: var(--ink-2);
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.action-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}

.action-btn svg {
  width: 15px;
  height: 15px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.author-card {
  display: flex;
  gap: 18px;
  align-items: center;
  margin-top: 34px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-2);
}

.author-card__avatar {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--serif);
  font-size: 22px;
}

.author-card__name {
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--ink);
}

.author-card__bio {
  margin-top: 4px;
  font-size: 0.86rem;
  color: var(--ink-3);
  line-height: 1.7;
}

.pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 34px;
}

.pager__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.3s ease, background-color 0.3s ease, transform 0.3s var(--ease);
}

.pager__item:hover {
  border-color: var(--line-strong);
  background: var(--paper-2);
  transform: translateY(-2px);
}

.pager__item--next {
  text-align: right;
}

.pager__label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.pager__title {
  font-family: var(--serif);
  font-size: 1.02rem;
  line-height: 1.5;
  color: var(--ink);
}

.pager__item--empty {
  visibility: hidden;
}

.related {
  padding-block: clamp(40px, 6vw, 64px);
  border-top: 1px solid var(--line);
}

.related__title {
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.4vw, 1.7rem);
  color: var(--ink);
  margin-bottom: 28px;
}

.related__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

/* 11. 归档页 ------------------------------------------------ */
.archive {
  padding-block: clamp(32px, 4vw, 52px) 0;
}

.archive__year {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: clamp(20px, 4vw, 48px);
  padding-block: 34px;
  border-bottom: 1px solid var(--line);
}

.archive__year:first-child {
  border-top: 1px solid var(--line);
}

.archive__year-label {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.4vw, 2.4rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.archive__year-label span {
  display: block;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.archive__item {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr) auto;
  gap: 18px;
  align-items: baseline;
  padding-block: 13px;
  border-bottom: 1px dashed var(--line);
}

.archive__item:last-child {
  border-bottom: 0;
}

.archive__date {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

.archive__title {
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--ink);
  line-height: 1.6;
  transition: color 0.2s ease;
}

.archive__item:hover .archive__title {
  color: var(--accent);
}

.archive__cat {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  white-space: nowrap;
}

/* 12. 标签页 ------------------------------------------------ */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding-block: clamp(28px, 4vw, 42px);
}

.tag-pill {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  padding: 11px 19px;
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: border-color 0.25s ease, background-color 0.25s ease, color 0.25s ease, transform 0.25s var(--ease);
}

.tag-pill:hover {
  border-color: var(--ink-3);
  transform: translateY(-2px);
}

.tag-pill b {
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
}

.tag-pill span {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-3);
}

.tag-pill.is-active {
  background: var(--ink);
  border-color: var(--ink);
}

.tag-pill.is-active b {
  color: var(--paper);
}

.tag-pill.is-active span {
  color: color-mix(in srgb, var(--paper) 60%, transparent);
}

.tag-panel {
  padding-block: 8px 0;
}

/* 13. 关于页 ------------------------------------------------ */
.about-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
  padding-block: clamp(44px, 6.5vw, 84px);
}

.about-hero__title {
  font-family: var(--serif);
  font-size: clamp(2.1rem, 4.6vw, 3.4rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-block: 18px 22px;
}

.about-hero p {
  max-width: 54ch;
  color: var(--ink-2);
  margin-block: 1.1em;
}

.portrait {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: 20px;
  overflow: hidden;
  background: linear-gradient(155deg, #e7dfcf, #cbbba0);
  box-shadow: var(--shadow-md);
}

.portrait::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(45deg, rgba(43, 36, 22, 0.08) 0 1px, transparent 1px 18px);
}

.portrait__mark {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--serif);
  font-size: clamp(6rem, 14vw, 9rem);
  color: #2b2416;
  opacity: 0.2;
}

.portrait__caption {
  position: absolute;
  left: 18px;
  bottom: 16px;
  z-index: 1;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #2b2416;
  opacity: 0.75;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(28px, 4vw, 56px);
}

.about-block {
  padding-top: 22px;
  border-top: 1px solid var(--line-strong);
}

.about-block__title {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 14px;
}

.about-block p {
  color: var(--ink-2);
  font-size: 0.96rem;
}

.skill-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 12px;
  margin-top: 26px;
}

.skill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  font-size: 0.88rem;
  color: var(--ink-2);
}

.skill span {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

.timeline {
  margin-top: 6px;
}

.timeline__item {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 20px;
  padding-block: 18px;
  border-bottom: 1px dashed var(--line);
}

.timeline__item:last-child {
  border-bottom: 0;
}

.timeline__year {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--accent);
  padding-top: 4px;
}

.timeline__title {
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--ink);
}

.timeline__desc {
  margin-top: 5px;
  font-size: 0.88rem;
  color: var(--ink-3);
  line-height: 1.75;
}

.contact-list {
  display: grid;
  gap: 2px;
}

.contact-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 13px;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
  color: var(--ink-2);
  transition: color 0.2s ease, padding-left 0.25s var(--ease);
}

.contact-row:hover {
  color: var(--accent);
  padding-left: 6px;
}

.contact-row span {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

/* 14. 404 --------------------------------------------------- */
.notfound {
  display: grid;
  place-items: center;
  min-height: calc(100vh - var(--header-h) - 120px);
  padding-block: clamp(48px, 8vw, 96px);
  text-align: center;
}

.notfound__code {
  font-family: var(--serif);
  font-size: clamp(6rem, 22vw, 15rem);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1px var(--line-strong);
  user-select: none;
}

.notfound__title {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  margin-top: 18px;
}

.notfound__desc {
  max-width: 38ch;
  margin: 14px auto 30px;
  color: var(--ink-3);
  font-size: 0.94rem;
}

/* 15. 工具类 ------------------------------------------------ */
.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.is-hidden {
  display: none !important;
}

.site-toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 160;
  padding: 11px 20px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, 12px);
  transition: opacity 0.28s ease, transform 0.32s var(--ease), visibility 0.28s ease;
}

.site-toast.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

/* 16. 响应式 ------------------------------------------------ */
@media (max-width: 1080px) {
  .article__layout {
    grid-template-columns: minmax(0, 720px);
  }

  .toc {
    position: static;
    order: -1;
    max-height: none;
    padding: 18px 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--paper-2);
  }
}

@media (max-width: 960px) {
  .hero__inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero__feature {
    max-width: 560px;
  }

  .featured-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .featured-side {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-hero {
    grid-template-columns: minmax(0, 1fr);
  }

  .portrait {
    max-width: 300px;
    aspect-ratio: 1 / 1;
  }

  .subscribe {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }
}

@media (max-width: 900px) {
  :root {
    --header-h: 62px;
  }

  .container {
    width: min(var(--container), 100% - 40px);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    margin-left: 0;
    padding: 14px 20px 22px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.25s ease, transform 0.3s var(--ease), visibility 0.25s ease;
  }

  body.nav-open .nav {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav__link {
    padding: 13px 12px;
    border-radius: 10px;
    font-size: 1rem;
  }

  .nav__link.is-active {
    background: var(--paper-2);
  }

  .nav__link.is-active::after {
    display: none;
  }

  .header__actions {
    margin-left: auto;
  }

  .icon-btn[data-search-toggle] kbd {
    display: none;
  }

  .footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px;
  }

  .footer__brand {
    grid-column: 1 / -1;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat:nth-child(3) {
    border-left: 0;
    padding-left: 0;
  }

  .stat:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .about-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 720px) {
  body {
    font-size: 16px;
  }

  .section__head {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .featured-side {
    grid-template-columns: minmax(0, 1fr);
  }

  .post-row {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 14px;
  }

  .post-row__index {
    display: none;
  }

  .post-row__meta .post-row__tags {
    display: none;
  }

  .article__head {
    text-align: left;
  }

  .article__cat::before,
  .article__cat::after {
    display: none;
  }

  .article__excerpt,
  .article__meta {
    justify-content: flex-start;
    margin-inline: 0;
  }

  .article__meta {
    justify-content: flex-start;
  }

  .archive__year {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }

  .archive__item {
    grid-template-columns: 56px minmax(0, 1fr);
  }

  .archive__cat {
    display: none;
  }

  .pager {
    grid-template-columns: minmax(0, 1fr);
  }

  .pager__item--empty {
    display: none;
  }

  .footer__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .posts-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .search-overlay {
    padding: 8vh 12px 12px;
  }

  .to-top {
    right: 16px;
    bottom: 16px;
    width: 42px;
    height: 42px;
  }
}

@media (max-width: 480px) {
  .stats {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .stat {
    padding: 18px 14px;
  }

  .brand__text span {
    display: none;
  }

  .article__actions .action-btn span {
    display: none;
  }

  .subscribe {
    border-radius: 18px;
  }
}

/* 17. 动效与打印 -------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .site-header,
  .site-footer,
  .toolbar,
  .to-top,
  .reading-bar,
  .toc,
  .article__foot,
  .related,
  .subscribe {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
    font-size: 12pt;
  }

  .article__layout {
    display: block;
  }

  .prose pre {
    background: #f4f4f4;
    border: 1px solid #ddd;
  }

  .prose pre code {
    color: #111;
  }
}