/* ==========================================================================
   Retro Digital Humanities & Editorial Design System
   复古数字人文风 · 设计规范实现（纯 CSS 版，对应 DESIGN.md）
   ========================================================================== */

:root {
  --paper-bg: #F4EEE1;
  --card-bg: #FAF6EC;
  --ink-main: #2B2620;
  --ink-muted: #6B6257;
  --vermilion: #C4442C;
  --ink-line-faint: rgba(43, 38, 32, 0.15);
  --ink-line-ghost: rgba(43, 38, 32, 0.3);
  --grid-line: rgba(43, 38, 32, 0.045);
}

/* ==========================================================================
   八、墨夜暗色模式 (Ink-Night Dark Scheme)
   显式深色：data-theme="dark"；跟随系统：data-theme="auto" + 媒体查询
   ========================================================================== */

:root[data-theme="dark"] {
  --paper-bg: #211D17;
  --card-bg: #2B251D;
  --ink-main: #E9E1D0;
  --ink-muted: #A29A88;
  --vermilion: #D05A3C;
  --ink-line-faint: rgba(233, 225, 208, 0.16);
  --ink-line-ghost: rgba(233, 225, 208, 0.32);
  --grid-line: rgba(233, 225, 208, 0.05);
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="auto"] {
    --paper-bg: #211D17;
    --card-bg: #2B251D;
    --ink-main: #E9E1D0;
    --ink-muted: #A29A88;
    --vermilion: #D05A3C;
    --ink-line-faint: rgba(233, 225, 208, 0.16);
    --ink-line-ghost: rgba(233, 225, 208, 0.32);
    --grid-line: rgba(233, 225, 208, 0.05);
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--paper-bg);
  color: var(--ink-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.85;
  position: relative;
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
}

::selection {
  background: var(--vermilion);
  color: var(--card-bg);
}

/* ==========================================================================
   七、滚动条拟物规范 (Editorial Scrollbar)
   硬朗直角、油墨滑块、朱砂 hover —— 与新粗野主义组件同源
   ========================================================================== */

/* Firefox / 标准属性 */
:root {
  scrollbar-width: thin;
  scrollbar-color: var(--ink-muted) var(--paper-bg);
}

/* WebKit / Blink */
::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

::-webkit-scrollbar-track {
  background: var(--paper-bg);
  border-left: 1px solid var(--ink-line-faint);
}

::-webkit-scrollbar-thumb {
  background-color: var(--ink-muted);
  border: 3px solid var(--paper-bg);
  border-radius: 0;
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--vermilion);
}

::-webkit-scrollbar-thumb:active {
  background-color: var(--ink-main);
}

::-webkit-scrollbar-corner {
  background: var(--paper-bg);
}

/* ==========================================================================
   Typography Scale
   ========================================================================== */

.font-editorial {
  font-family: "Noto Serif SC", "EB Garamond", Georgia, "Times New Roman", serif;
}

.font-mono {
  font-family: "JetBrains Mono", "IBM Plex Mono", Menlo, Monaco, Consolas, "Courier New", monospace;
}

/* Pixel Art Rendering */
.pixel-art {
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
}

/* Paper noise overlay */
.noise-overlay {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.035;
  z-index: 50;
  mix-blend-mode: multiply;
}

/* 暗色下噪点反转为微光颗粒 */
:root[data-theme="dark"] .noise-overlay {
  mix-blend-mode: screen;
  opacity: 0.05;
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="auto"] .noise-overlay {
    mix-blend-mode: screen;
    opacity: 0.05;
  }
}

/* Authentic Manuscript / Graph Paper Grid Background */
.manuscript-grid {
  background-size: 24px 24px;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
}

/* ==========================================================================
   Layout Container (宽幅 1060px / 单栏 760px)
   ========================================================================== */

.layout-container {
  position: relative;
  z-index: 10;
  margin: 0 auto;
  padding: 2rem 1rem;
  max-width: 1060px;
  transition: max-width 0.3s ease;
}

.layout-container.layout-narrow {
  max-width: 760px;
}

@media (min-width: 640px) {
  .layout-container {
    padding: 3rem 2rem;
  }
}

/* ==========================================================================
   Top Publication Ribbon (期号元信息 + 模式开关)
   ========================================================================== */

.topbar {
  border-bottom: 1px solid var(--ink-main);
  padding-bottom: 0.625rem;
  margin-bottom: 2rem;
  font-family: "JetBrains Mono", "IBM Plex Mono", Menlo, Monaco, Consolas, monospace;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

/* 首行：期号居左、版号居右 */
.topbar-row-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.topbar-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.topbar-meta .sigil {
  color: var(--vermilion);
  font-weight: bold;
}

/* 版号居右（移动端隐藏，避免拥挤） */
.topbar-issue {
  display: none;
}

@media (min-width: 768px) {
  .topbar-issue {
    display: inline;
  }
}

/* 次行：模式开关组居右 */
.topbar-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.625rem;
  margin-top: 0.625rem;
}

/* 硬朗报刊小按钮 */
.retro-btn {
  padding: 0.125rem 0.5rem;
  border: 1px solid var(--ink-main);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.7rem;
  line-height: 1.6;
  background: var(--card-bg);
  color: var(--ink-main);
  transition: color 0.15s ease, background-color 0.15s ease;
}

.retro-btn:hover {
  color: var(--vermilion);
}

.retro-btn:active {
  transform: translateY(1px);
}

.retro-btn.active {
  background: var(--ink-main);
  color: var(--card-bg);
  font-weight: bold;
}

/* 分段选择器（幅面 / 数量演示） */
.seg-control {
  display: flex;
  align-items: center;
  border: 1px solid var(--ink-main);
  background: var(--card-bg);
  font-size: 0.7rem;
  padding: 0.125rem;
}

.seg-control .seg-label {
  padding: 0 0.375rem;
  color: var(--ink-muted);
  user-select: none;
}

.seg-control .seg-btn {
  padding: 0.125rem 0.5rem;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.7rem;
  line-height: 1.6;
  background: transparent;
  color: var(--ink-main);
  transition: color 0.15s ease, background-color 0.15s ease;
}

.seg-control .seg-btn:hover {
  color: var(--vermilion);
}

.seg-control .seg-btn.active {
  background: var(--ink-main);
  color: var(--card-bg);
  font-weight: bold;
}

/* ==========================================================================
   刊头 Masthead
   ========================================================================== */

.masthead {
  margin-bottom: 3rem;
}

.masthead-row {
  display: flex;
  flex-direction: column-reverse;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  padding-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .masthead-row {
    flex-direction: row;
    align-items: center;
  }
}

.masthead-colophon {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.colophon-tag {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  color: var(--vermilion);
  letter-spacing: 0.1em;
  font-weight: bold;
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.colophon-badge {
  background: var(--card-bg);
  border: 1px solid var(--ink-main);
  color: var(--ink-main);
  font-size: 0.68rem;
  padding: 0.125rem 0.375rem;
  font-family: "JetBrains Mono", monospace;
  font-weight: 600;
  box-shadow: 2px 2px 0 var(--ink-main);
}

.masthead-title {
  font-family: "Noto Serif SC", "EB Garamond", Georgia, serif;
  font-size: clamp(2.75rem, 6.5vw, 4.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink-main);
  line-height: 1.05;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.masthead-title a {
  color: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  transition: color 0.15s ease;
}

.masthead-title a:hover {
  color: var(--vermilion);
}

.masthead-tagline {
  font-family: "Noto Serif SC", "EB Garamond", Georgia, serif;
  font-size: 1.15rem;
  font-style: italic;
  color: var(--ink-main);
  margin-top: 0.75rem;
}

.masthead-tagline-en {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-top: 0.25rem;
}

/* 打字机光标 */
@keyframes cursor-blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.blink-cursor {
  display: inline-block;
  width: 8px;
  height: 0.72em;
  background-color: var(--vermilion);
  vertical-align: baseline;
  margin-left: 0.35rem;
  animation: cursor-blink 1.05s step-end infinite;
}

/* 脉冲状态点 */
@keyframes vibe-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.pulse-dot {
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 9999px;
  background: var(--vermilion);
  animation: vibe-pulse 1.8s ease-in-out infinite;
}

/* 8-bit 一寸证件照头像（16:22 矩形矩阵） */
.pixel-avatar-frame {
  flex-shrink: 0;
  align-self: flex-start;
  border: 2px solid var(--ink-main);
  background: var(--card-bg);
  padding: 4px;
  box-shadow: 3px 3px 0 var(--ink-main);
  display: inline-block;
  transition: transform 0.15s ease;
}

@media (min-width: 640px) {
  .pixel-avatar-frame {
    align-self: center;
  }
}

.pixel-avatar-frame:hover {
  transform: translate(2px, -2px);
}

.pixel-avatar-frame svg {
  display: block;
  width: 6rem;
  height: 8.25rem;
}

@media (min-width: 640px) {
  .pixel-avatar-frame svg {
    width: 7rem;
    height: 9.625rem;
  }
}

/* 刊头装饰线 ❦ */
.masthead-divider {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0.5rem 0;
}

.masthead-divider::before {
  content: "";
  width: 100%;
  height: 2px;
  background: var(--ink-main);
}

.masthead-divider .divider-glyph {
  position: absolute;
  background: var(--paper-bg);
  padding: 0 1rem;
  font-family: "Noto Serif SC", "EB Garamond", Georgia, serif;
  font-size: 1rem;
  color: var(--ink-main);
  user-select: none;
}

/* ==========================================================================
   Section 通用
   ========================================================================== */

.section {
  margin-bottom: 3.5rem;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.section-header.with-border {
  flex-wrap: wrap;
  gap: 0.75rem;
  border-bottom: 1px solid var(--ink-line-ghost);
  padding-bottom: 0.5rem;
  margin-bottom: 1.25rem;
}

.section-title {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--ink-main);
  font-weight: bold;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-title .mark {
  color: var(--vermilion);
}

.section-aside {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  color: var(--ink-muted);
}

/* ==========================================================================
   01 个人陈述 About
   ========================================================================== */

.about-body {
  border-left: 2px solid var(--ink-main);
  padding-left: 1.25rem;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

@media (min-width: 640px) {
  .about-body {
    padding-left: 1.5rem;
  }
}

.about-body p {
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--ink-main);
  margin-bottom: 0.75rem;
}

.about-tags {
  padding-top: 0.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  font-family: "JetBrains Mono", monospace;
  color: var(--ink-muted);
}

.about-tags .tag-key {
  color: var(--vermilion);
  font-weight: bold;
}

.about-tags .tag-sep {
  color: var(--vermilion);
}

/* ==========================================================================
   02 开源造物 Projects（2×2 报章矩阵）
   ========================================================================== */

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  transition: all 0.3s ease;
}

/* 宽幅桌面端：对称双列；窄幅与移动端严格单列 */
@media (min-width: 768px) {
  .layout-wide .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Neobrutalist Project Card */
.retro-card {
  background-color: var(--card-bg);
  border: 2px solid var(--ink-main);
  box-shadow: 4px 4px 0 var(--ink-main);
  transition: transform 0.15s cubic-bezier(0.2, 0, 0, 1), box-shadow 0.15s cubic-bezier(0.2, 0, 0, 1);
}

.retro-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--ink-main);
}

.retro-card:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink-main);
}

.project-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.25rem;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  position: relative;
}

/* Vibe Coding 朱砂盖印章 */
.vibe-stamp {
  position: absolute;
  top: -12px;
  right: -8px;
  background: var(--card-bg);
  border: 2px solid var(--vermilion);
  color: var(--vermilion);
  font-size: 0.65rem;
  font-family: "JetBrains Mono", monospace;
  font-weight: bold;
  padding: 0.125rem 0.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: 2px 2px 0 var(--ink-main);
  transform: rotate(2deg);
  user-select: none;
}

.project-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.25rem;
  border-bottom: 1px solid var(--ink-main);
  padding-bottom: 0.5rem;
  margin-bottom: 0.75rem;
}

.project-card-head .head-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.project-id {
  font-size: 0.7rem;
  font-family: "JetBrains Mono", monospace;
  color: var(--vermilion);
  font-weight: bold;
}

.project-title {
  font-family: "Noto Serif SC", "EB Garamond", Georgia, serif;
  font-weight: 700;
  color: var(--ink-main);
  letter-spacing: -0.02em;
  font-size: 1.25rem;
  transition: color 0.15s ease;
}

.project-card:hover .project-title {
  color: var(--vermilion);
}

.project-year {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-family: "JetBrains Mono", monospace;
  color: var(--ink-muted);
  flex-shrink: 0;
}

.project-year .arrow {
  color: var(--ink-main);
  font-weight: bold;
  transition: transform 0.15s ease;
}

.project-card:hover .project-year .arrow {
  transform: translate(2px, -2px);
}

.project-desc {
  color: var(--ink-main);
  line-height: 1.65;
  margin-bottom: 1rem;
  font-size: 0.93rem;
}

/* 技术栈等宽标签 */
.project-stack {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-size: 0.72rem;
  font-family: "JetBrains Mono", monospace;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding-top: 0.625rem;
  border-top: 1px solid var(--ink-line-faint);
  margin-top: 0.5rem;
}

.project-stack .stack-key {
  color: var(--ink-main);
  margin-right: 0.5rem;
  font-weight: 600;
}

.project-stack .stack-item {
  transition: color 0.15s ease;
}

.project-card:hover .project-stack .stack-item {
  color: var(--ink-main);
}

.project-stack .stack-item.vibe {
  color: var(--vermilion);
  font-weight: bold;
}

.project-stack .stack-sep {
  margin: 0 0.375rem;
  color: var(--vermilion);
  user-select: none;
}

/* 全部仓库入口 */
.all-repos {
  margin-top: 1.25rem;
  text-align: right;
}

.all-repos-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  font-family: "JetBrains Mono", monospace;
  font-weight: bold;
  color: var(--ink-main);
  text-decoration: none;
  transition: all 0.15s ease;
}

.all-repos-link:hover {
  color: var(--vermilion);
}

.all-repos-link .arrow {
  color: var(--vermilion);
}

/* ==========================================================================
   03 工具与格物 Skills
   ========================================================================== */

.skills-panel {
  border: 2px solid var(--ink-main);
  background: var(--card-bg);
  padding: 1.25rem;
  box-shadow: 4px 4px 0 var(--ink-main);
}

@media (min-width: 640px) {
  .skills-panel {
    padding: 1.5rem;
  }
}

.skills-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  font-size: 0.84rem;
  font-family: "JetBrains Mono", monospace;
}

@media (min-width: 768px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.skill-category-head {
  font-size: 0.75rem;
  font-weight: bold;
  color: var(--ink-main);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-bottom: 2px solid var(--ink-main);
  padding-bottom: 0.375rem;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.skill-category-head .mark {
  color: var(--vermilion);
}

.skill-list {
  list-style: none;
}

.skill-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  color: var(--ink-main);
  line-height: 1.5;
  margin-bottom: 0.5rem;
}

.skill-list li .arrow {
  color: var(--vermilion);
  user-select: none;
  flex-shrink: 0;
  margin-top: 0.125rem;
}

/* ==========================================================================
   04 通讯与信使 Contact
   ========================================================================== */

.contact-panel {
  border: 2px solid var(--ink-main);
  background: var(--card-bg);
  padding: 1rem;
  box-shadow: 4px 4px 0 var(--ink-main);
}

@media (min-width: 640px) {
  .contact-panel {
    padding: 1rem 1.5rem;
  }
}

.contact-list {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.85rem;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem 2rem;
}

@media (min-width: 768px) {
  .layout-wide .contact-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.contact-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  border-bottom: 1px solid var(--ink-line-faint);
  padding-bottom: 0.5rem;
}

.contact-item .contact-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.contact-label {
  color: var(--vermilion);
  font-weight: bold;
  font-size: 0.75rem;
}

.contact-proto {
  font-size: 0.7rem;
  color: var(--ink-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Editorial Links */
.retro-link {
  color: var(--ink-main);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

.retro-link:hover {
  color: var(--vermilion);
  text-decoration-color: var(--vermilion);
}

/* ==========================================================================
   页脚 Footer 与备案
   ========================================================================== */

.footer {
  padding-top: 1.5rem;
  border-top: 2px solid var(--ink-main);
  text-align: center;
}

.footer .footer-type-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-size: 0.75rem;
  font-family: "JetBrains Mono", monospace;
  color: var(--ink-muted);
  margin-bottom: 0.75rem;
}

.footer .footer-copy {
  font-size: 0.8rem;
  font-family: "JetBrains Mono", monospace;
  color: var(--ink-main);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.footer .footer-rights {
  font-size: 0.68rem;
  font-family: "JetBrains Mono", monospace;
  color: var(--ink-muted);
  letter-spacing: 0.05em;
}

/* 法定备案标识行 */
.footer-records {
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--ink-line-faint);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.375rem 0.75rem;
  font-size: 0.72rem;
  font-family: "JetBrains Mono", monospace;
  color: var(--ink-muted);
}

.footer-records a {
  color: var(--ink-muted);
  text-decoration: underline;
  text-decoration-color: var(--ink-line-ghost);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

.footer-records a:hover {
  color: var(--vermilion);
  text-decoration-color: var(--vermilion);
}

.footer-records .police-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

.footer-records .police-link img {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
}

.footer-records .records-sep {
  color: var(--ink-line-ghost);
}