/* =========================================================
   余俊鋒 Chopin J.F. Yu — 个人学术主页
   纯 CSS，无框架、无构建。浅色 / 深色跟随系统。
   ========================================================= */

/* ---------- 设计变量 ---------- */
:root {
  color-scheme: light dark;

  --paper: #f6f2e9;
  --paper-soft: #efe9dc;
  --surface: #fffdf7;
  --ink: #1b1915;
  --ink-soft: #423d35;
  --muted: #6d6559;
  --line: #ddd4c5;
  --line-strong: #c7baa6;
  --accent: #8a3b2c;
  --accent-soft: #ead9cf;
  --glow: rgba(138, 59, 44, 0.07);

  --serif: "Iowan Old Style", "Palatino Linotype", "Songti SC",
    "Noto Serif CJK SC", "Source Han Serif SC", "Noto Serif SC", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --shadow: 0 34px 60px -44px rgba(27, 25, 21, 0.5);
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #141310;
    --paper-soft: #1c1a16;
    --surface: #1b1915;
    --ink: #f0eadf;
    --ink-soft: #d3cabb;
    --muted: #a09687;
    --line: #302b24;
    --line-strong: #453e34;
    --accent: #d99077;
    --accent-soft: #3a241d;
    --glow: rgba(217, 144, 119, 0.06);
    --shadow: 0 34px 60px -40px rgba(0, 0, 0, 0.9);
  }
}

/* ---------- 基础 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    radial-gradient(52rem 36rem at 88% -8%, var(--glow), transparent 62%),
    radial-gradient(38rem 26rem at -8% 22%, var(--glow), transparent 60%);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
}

h1, h2, h3, p, dl, dd, figure, ol, ul {
  margin: 0;
}

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

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

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

.wrap {
  width: min(1120px, 100% - 48px);
  margin-inline: auto;
}

.nowrap {
  white-space: nowrap;
}

/* ---------- 跳过导航 ---------- */
.skip-link {
  position: absolute;
  top: 10px;
  left: 12px;
  z-index: 100;
  padding: 8px 14px;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.82rem;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 0.18s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

/* ---------- 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  background: color-mix(in srgb, var(--paper) 90%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 66px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  text-decoration: none;
}

.brand-name {
  font-family: var(--serif);
  font-size: 1.08rem;
  letter-spacing: 0.1em;
}

.brand-en {
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
}

.site-nav a {
  display: inline-block;
  padding-block: 4px;
  border-bottom: 1px solid transparent;
  color: var(--muted);
  font-size: 0.86rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease;
}

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

.site-nav a[aria-current="page"] {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ---------- 首屏 ---------- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  align-items: center;
  gap: clamp(40px, 6vw, 80px);
  padding-block: clamp(56px, 8vw, 92px) clamp(48px, 7vw, 84px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--accent);
}

.hero h1 {
  margin-top: 16px;
  font-family: var(--serif);
  font-size: clamp(3.4rem, 7.4vw, 5.6rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: 0.06em;
}

.hero-en {
  margin-top: 6px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.lead {
  max-width: 30ch;
  margin-top: 30px;
  font-family: var(--serif);
  font-size: clamp(1.12rem, 1.7vw, 1.35rem);
  line-height: 1.85;
  color: var(--ink-soft);
}

.hero-meta {
  display: grid;
  gap: 12px;
  margin-top: 36px;
}

.hero-meta dt {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero-meta dd {
  margin-top: 2px;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.hero-meta a {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: var(--line-strong);
}

.hero-meta a:hover {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 22px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.84rem;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: background-color 0.18s ease, color 0.18s ease,
    border-color 0.18s ease;
}

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

.btn-quiet {
  background: transparent;
  color: var(--ink);
}

.btn-quiet:hover {
  background: transparent;
  color: var(--accent);
}

.hero-figure {
  justify-self: end;
  width: min(100%, 480px);
  margin: 0;
}

.hero-stack {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: start;
  gap: 14px;
}

.hero-photo,
.hero-card {
  width: 100%;
  padding: 8px;
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.hero-photo {
  transform: rotate(-1.2deg);
}

.hero-card {
  transform: rotate(1.2deg);
}

.hero-photo img,
.hero-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 7;
  object-fit: cover;
}

.hero-photo img {
  object-position: 45% center;
  background: var(--paper-soft);
}

.hero-card img {
  object-fit: contain;
  object-position: center center;
  background: var(--paper);
}

.hero-figure figcaption {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 20px;
  padding-inline: 3px;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- 区块骨架 ---------- */
.section {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  padding-block: clamp(48px, 6vw, 72px);
  border-top: 1px solid var(--line);
  scroll-margin-top: 84px;
}

.section-label {
  align-self: start;
  position: sticky;
  top: 94px;
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-body {
  min-width: 0;
  max-width: 800px;
}

.section h2 {
  margin-bottom: 18px;
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.75rem, 3.1vw, 2.45rem);
  line-height: 1.3;
  letter-spacing: 0.02em;
  text-wrap: balance;
}

.section-intro {
  max-width: 56ch;
  margin-bottom: 34px;
  font-size: 0.94rem;
  color: var(--muted);
}

/* ---------- 正文 ---------- */
.prose p {
  font-family: var(--serif);
  font-size: 1.04rem;
  line-height: 1.95;
  color: var(--ink-soft);
}

.prose p + p {
  margin-top: 1em;
}

.prose > p:first-child {
  color: var(--ink);
}

.prose {
  max-width: 62ch;
}

/* ---------- 简介 ---------- */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.75fr);
  gap: clamp(32px, 5vw, 56px);
  align-items: start;
}

.en-block {
  margin-top: 38px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.en-label {
  margin-bottom: 10px;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.en-block p:last-child {
  font-family: var(--serif);
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--muted);
}

.facts {
  border-top: 1px solid var(--line);
}

.facts > div {
  padding-block: 16px;
  border-bottom: 1px solid var(--line);
}

.facts h3 {
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 0.61rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.facts p,
.plain-list li {
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--ink-soft);
}

.plain-list li + li {
  margin-top: 4px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag-list li {
  padding: 3px 8px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-size: 0.71rem;
  color: var(--ink-soft);
}

/* ---------- 研究 ---------- */
.research-item {
  padding-top: 34px;
  margin-top: 34px;
  border-top: 1px solid var(--line);
}

.research-item:first-of-type {
  padding-top: 0;
  margin-top: 0;
  border-top: 0;
}

.research-meta {
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.research-item h3 {
  margin-top: 8px;
  font-family: var(--serif);
  font-size: 1.55rem;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.02em;
}

.research-sub {
  margin-top: 3px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.98rem;
  color: var(--muted);
}

.research-item .prose {
  margin-top: 16px;
}

.tbd {
  display: inline-block;
  margin-top: 18px;
  padding: 3px 10px;
  border: 1px dashed color-mix(in srgb, var(--accent) 55%, transparent);
  border-radius: 2px;
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--accent);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}

.tags li {
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.tags li + li::before {
  content: "·";
  margin-right: 6px;
  color: var(--line-strong);
}

/* ---------- 数字项目 ---------- */
.project-card {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--surface);
}

.project-figure {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-right: 1px solid var(--line);
  background: var(--paper);
}

.project-figure img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.project-body {
  display: flex;
  flex-direction: column;
  padding: clamp(24px, 3.5vw, 38px);
}

.project-kicker {
  font-family: var(--mono);
  font-size: 0.61rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.project-card h3 {
  margin-top: 10px;
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.1vw, 1.6rem);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.01em;
}

.project-card h3 a {
  text-decoration: none;
}

.project-card h3 a:hover {
  color: var(--accent);
}

.project-sub {
  margin-top: 5px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.98rem;
  color: var(--muted);
}

.project-desc {
  margin-top: 12px;
  font-family: var(--serif);
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.project-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.project-stats li {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.project-stats strong {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 500;
  line-height: 1.1;
  color: var(--ink);
}

.project-stats span {
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.02em;
  line-height: 1.4;
  color: var(--muted);
}

.project-body .more-link {
  align-self: flex-start;
  margin-top: auto;
  padding-top: 26px;
}

/* ---------- 著作 ---------- */
.pub-list {
  margin: 0;
}

.pub {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 24px;
  padding-block: 20px;
  border-top: 1px solid var(--line);
}

.pub:last-child {
  border-bottom: 1px solid var(--line);
}

/* 期刊 / 会议分组 */
.pub-group + .pub-group {
  margin-top: 42px;
}

.pub-group-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-strong);
  font-family: var(--serif);
  font-size: 1.16rem;
  font-weight: 500;
  letter-spacing: 0.03em;
}

.pub-count {
  font-family: var(--mono);
  font-size: 0.61rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.pub-list .pub:first-child {
  border-top: 0;
}

.pub-year {
  margin-top: 3px;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.pub-type {
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.pub h3 {
  font-family: var(--serif);
  font-size: 1.03rem;
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: 0.01em;
}

.pub-venue {
  margin-top: 7px;
  font-size: 0.81rem;
  line-height: 1.7;
  color: var(--muted);
}

.pub-alt {
  margin-top: 6px;
  font-family: var(--serif);
  font-size: 0.84rem;
  font-style: italic;
  line-height: 1.7;
  color: var(--muted);
}

/* PDF / DOI 链接 */
.pub-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  margin-top: 12px;
}

.pub-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease,
    background-color 0.18s ease;
}

.pub-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent-soft) 35%, transparent);
}

.pub-size {
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--muted);
}

.pub-link:hover .pub-size {
  color: var(--accent);
}

.pub-link-quiet {
  padding-inline: 3px;
  border-color: transparent;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.pub-link-quiet:hover {
  background: transparent;
  border-color: transparent;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.more-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 28px;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--accent);
  color: var(--accent);
  font-size: 0.83rem;
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.more-link:hover {
  color: var(--ink);
  border-color: var(--ink);
}

.pub-placeholder {
  border-top: 0;
  padding-top: 0;
}

.placeholder {
  padding: 18px 20px;
  border: 1px dashed var(--line-strong);
  background: color-mix(in srgb, var(--paper-soft) 55%, transparent);
}

.placeholder-label {
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.placeholder p:last-child {
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 写作 ---------- */
.writing-subhead {
  padding-bottom: 10px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--line-strong);
  font-family: var(--mono);
  font-size: 0.63rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.wp-grid + .writing-subhead {
  margin-top: 52px;
}

/* ---------- 工作论文 ---------- */
.wp-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.55fr);
  align-items: start;
  gap: clamp(28px, 5vw, 52px);
}

.wp-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.wp-feature h3 {
  margin-top: 12px;
  font-family: var(--serif);
  font-size: clamp(1.5rem, 2.7vw, 2rem);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.01em;
}

.wp-sub {
  margin-top: 6px;
  font-family: var(--serif);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--muted);
}

.wp-authors {
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.wp-warning {
  margin-top: 16px;
  padding: 8px 12px;
  border-left: 2px solid var(--accent);
  background: color-mix(in srgb, var(--paper-soft) 70%, transparent);
  font-size: 0.72rem;
  line-height: 1.7;
  color: var(--muted);
}

.wp-abstract {
  margin-top: 16px;
  font-family: var(--serif);
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--ink-soft);
}

.wp-abstract p + p {
  margin-top: 0.8em;
}

.wp-keywords {
  margin-top: 14px;
  font-size: 0.76rem;
  line-height: 1.7;
  color: var(--muted);
}

.wp-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-top: 20px;
}

.wp-links .more-link {
  margin-top: 0;
}

.wp-note {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 0.72rem;
  line-height: 1.7;
  color: var(--muted);
}

.wp-note + .wp-note {
  margin-top: 6px;
  padding-top: 0;
  border-top: 0;
}

.wp-versions {
  padding-top: 16px;
  border-top: 1px solid var(--line-strong);
}

.wp-versions h4 {
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.wp-versions ol {
  margin-top: 10px;
}

.wp-versions li {
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.wp-versions li:first-child {
  padding-top: 0;
  border-top: 0;
}

.wp-version-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.wp-version-head a {
  font-family: var(--serif);
  font-size: 1rem;
  text-decoration: none;
}

.wp-version-head a:hover {
  color: var(--accent);
}

.wp-version-head span {
  font-family: var(--mono);
  font-size: 0.58rem;
  color: var(--muted);
}

.wp-versions li p {
  margin-top: 5px;
  font-size: 0.74rem;
  line-height: 1.65;
  color: var(--muted);
}

.wp-versions .pub-link {
  margin-top: 10px;
}

.wp-versions-note {
  margin-top: 16px;
  font-size: 0.7rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 小说 ---------- */
.fiction {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(24px, 4vw, 48px);
  padding-top: 4px;
}

.fiction-head h3 {
  margin-top: 12px;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.fiction-author {
  margin-top: 4px;
  font-family: var(--serif);
  font-size: 1rem;
  color: var(--ink-soft);
}

.fiction-status {
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.fiction-body {
  max-width: 56ch;
}

.fiction-quote {
  margin: 0 0 16px;
  padding-left: 18px;
  border-left: 2px solid var(--line-strong);
  font-family: var(--serif);
  font-size: 1.02rem;
  line-height: 1.9;
  color: var(--ink-soft);
}

.fiction-desc {
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--muted);
}

.fiction .wp-links {
  margin-top: 18px;
}

.fiction .wp-note {
  margin-top: 18px;
}

/* ---------- 教学 ---------- */
.timeline li {
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr);
  gap: 24px;
  padding-block: 18px;
  border-top: 1px solid var(--line);
}

.timeline li:last-child {
  border-bottom: 1px solid var(--line);
}

.time {
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.timeline h3 {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 500;
}

.timeline div p {
  margin-top: 4px;
  font-size: 0.85rem;
  color: var(--muted);
}

/* ---------- 联系 ---------- */
.contact-block {
  padding: clamp(26px, 4.5vw, 44px);
  border: 1px solid var(--line);
  background: var(--surface);
}

.contact-note {
  max-width: 46ch;
  font-family: var(--serif);
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.email {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 26px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line-strong);
  font-family: var(--serif);
  font-size: clamp(1.3rem, 3.4vw, 2.15rem);
  letter-spacing: -0.01em;
  line-height: 1.25;
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.email span {
  font-size: 0.7em;
  transition: transform 0.18s ease;
}

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

.email:hover span {
  transform: translate(3px, -3px);
}

.note {
  margin-top: 20px;
  font-size: 0.8rem;
  color: var(--muted);
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin-top: 12px;
}

.contact-links a {
  font-size: 0.8rem;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

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

/* ---------- 著作页 ---------- */
.page-head {
  padding-block: clamp(48px, 6vw, 72px) clamp(20px, 3vw, 28px);
}

.page-head .section-label {
  position: static;
  margin: 0 0 14px;
}

.page-head h1 {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: 0.04em;
}

.page-intro {
  max-width: 46ch;
  margin-top: 18px;
  font-family: var(--serif);
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-jump {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.page-jump a {
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line-strong);
  color: var(--ink-soft);
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease;
}

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

.page-back {
  margin-top: 24px;
  font-size: 0.82rem;
}

.page-back a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
}

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

.page-head + .section {
  padding-top: clamp(32px, 4vw, 48px);
}

.page-footnote {
  margin-top: 30px;
  font-size: 0.76rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 隐私页 ---------- */
.privacy-body h2 {
  margin-top: 32px;
  margin-bottom: 8px;
  font-size: clamp(1.3rem, 2.2vw, 1.6rem);
}

.privacy-body h2:first-child {
  margin-top: 0;
}

.privacy-list {
  margin-top: 8px;
}

.privacy-list li {
  position: relative;
  padding-left: 1.1em;
  font-family: var(--serif);
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.privacy-list li + li {
  margin-top: 6px;
}

.privacy-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--muted);
}

/* ---------- 页脚 ---------- */
.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  margin-top: clamp(40px, 6vw, 72px);
  padding-block: 26px 44px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.site-footer a {
  color: var(--muted);
  text-decoration: none;
}

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

.footer-icp {
  flex-basis: 100%;
  font-size: 0.64rem;
}

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
  }

  .hero-figure {
    justify-self: start;
    width: 420px;
  }

  .about-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 36px;
  }

  .wp-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 36px;
  }

  .fiction {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

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

  .section-label {
    position: static;
    margin: 0;
  }

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

  .project-figure {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 600px) {
  .wrap {
    width: calc(100% - 36px);
  }

  .header-inner {
    flex-wrap: wrap;
    gap: 4px 0;
    min-height: 58px;
    padding-block: 8px;
  }

  .brand-en {
    display: none;
  }

  .site-nav {
    width: 100%;
  }

  .site-nav ul {
    gap: 2px 14px;
  }

  .site-nav a {
    font-size: 0.8rem;
  }

  .section {
    scroll-margin-top: 104px;
  }

  .hero h1 {
    font-size: clamp(2.9rem, 15vw, 3.8rem);
  }

  .lead {
    max-width: 26ch;
  }

  .hero-actions .btn {
    flex: 1;
  }

  .hero-figure {
    width: 100%;
  }

  .hero-stack {
    gap: 10px;
  }

  .hero-photo,
  .hero-card {
    padding: 6px;
  }

  .hero-photo {
    transform: rotate(-1deg);
  }

  .hero-card {
    transform: rotate(1deg);
  }

  .hero-figure figcaption {
    margin-top: 18px;
  }

  .project-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 18px;
  }

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

  .pub-year {
    margin-top: 0;
  }

  .timeline li {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .time {
    margin-top: 0;
  }

  .contact-block {
    padding: 22px;
  }

  .email {
    font-size: 1.18rem;
    word-break: break-all;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---------- 打印 ---------- */
@media print {
  body {
    background: #fff;
    color: #000;
  }

  .site-header,
  .site-nav,
  .hero-actions,
  .skip-link,
  .site-footer,
  .page-back,
  .page-jump,
  .more-link {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-block: 0 24px;
  }

  .hero-figure {
    display: none;
  }

  .section {
    display: block;
    padding-block: 20px;
    border-color: #bbb;
    page-break-inside: avoid;
  }

  .section-label {
    position: static;
    margin-bottom: 8px;
  }

  a {
    color: #000;
    text-decoration: none;
  }

  .placeholder,
  .tbd {
    border-color: #999;
    color: #555;
  }
}