/* ==========================================================================
   微风工坊 · 文章阅读页专属排版系统 (Article Layout & Theme System)
   排版结构与原版 Project15 保持高度一致，色彩与字韵完美融入 index1.html 东方书香纸墨风
   ========================================================================== */

/* ============ 核心设计变量 Tokens (继承自 index1.html) ============ */
:root {
  --paper: #f4f1e9;
  --paper-2: #ebe7dc;
  --paper-3: #e2ddcf;
  --ink: #1b1a17;
  --ink-2: #4a4740;
  --ink-3: #6f6b62;
  --ink-4: #a29d92;
  --line: rgba(27, 26, 23, .12);
  --line-2: rgba(27, 26, 23, .22);
  --seal: #b8432f;
  --seal-ink: #fbf3ea;
  --night: #161613;
  --night-2: #201f1b;
  --night-ink: #ece8de;
  --night-mute: #9a958a;
  --night-line: rgba(236, 232, 222, .12);
  --jade: #6f8f6a;
  --jade-light: #eef4ed;
  --amber: #b45309;
  --amber-light: #fef3c7;
  --blue: #2563eb;
  --blue-light: #eff6ff;

  --f-zh: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --f-en: "Instrument Serif", "Noto Serif SC", Georgia, serif;
  --f-ui: "Inter", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;

  --ease: cubic-bezier(.22, 1, .36, 1);
  --ease-io: cubic-bezier(.65, 0, .35, 1);
  --wrap: 1280px;
  --gut: clamp(20px, 4.4vw, 64px);
  --nav-h: 68px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] {
  --paper: #11110f;
  --paper-2: #1a1916;
  --paper-3: #24231f;
  --ink: #ece8de;
  --ink-2: #bdb8ac;
  --ink-3: #8f8a7f;
  --ink-4: #5f5b53;
  --line: rgba(236, 232, 222, .1);
  --line-2: rgba(236, 232, 222, .2);
  --seal: #d4573f;
  --night: #1b1a17;
  --night-2: #24231f;
  --jade: #82a87d;
  --jade-light: #162417;
  --amber: #f59e0b;
  --amber-light: #2c2007;
  --blue: #60a5fa;
  --blue-light: #132238;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
}

/* ============ 全局基底 Base ============ */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 15.5px/1.75 var(--f-ui);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background-color .5s var(--ease), color .5s var(--ease);
}

/* 纸张微粒质感层 (与 index1.html 相同) */
body::after {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none; z-index: 99;
  opacity: .32;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 .09 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
[data-theme="dark"] body::after {
  mix-blend-mode: screen;
  opacity: .18;
  filter: invert(1);
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, h4, h5, h6, p, ul, ol, dl, dd, figure { margin: 0; padding: 0; }
ul, ol { list-style: none; }
::selection { background: var(--seal); color: var(--seal-ink); }
:focus-visible { outline: 1.5px solid var(--seal); outline-offset: 3px; border-radius: 2px; }

/* 容器与类 (原版标准宽度与居中结构) */
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gut); }
.shell { width: 100%; margin: 0 auto; }
.article-shell { max-width: 940px; margin: 0 auto; padding: 0 24px; }
.article-shell.wide { max-width: 1220px; }
.mono { font-family: var(--f-mono); font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; }
.en { font-family: var(--f-en); font-style: italic; font-weight: 400; letter-spacing: 0; }

/* ============ 顶栏 Sticky Topbar ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  height: var(--nav-h);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  backdrop-filter: blur(14px) saturate(1.2);
  border-bottom: 1px solid var(--line);
  transition: transform .45s var(--ease), background-color .4s;
}
.nav .wrap {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { width: 30px; height: 30px; color: var(--ink); transition: transform .8s var(--ease); }
.brand:hover .brand-mark { transform: rotate(-24deg); }
.brand-name { font-family: var(--f-zh); font-size: 17px; letter-spacing: .14em; line-height: 1; }
.brand-name small { display: block; margin-top: 5px; font: 500 9.5px/1 var(--f-mono); letter-spacing: .22em; color: var(--ink-3); }

/* 右侧主导航与工具入口 (严格对齐原版 Navbar.vue 与新版视觉) */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: auto;
}
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-item {
  padding: 8px 14px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-2);
  border-radius: 8px;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}
.nav-item:hover {
  color: var(--ink);
  background: var(--paper-2);
}
.icon-btn {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  color: var(--ink-2);
  border: 1px solid var(--line);
  background: var(--paper);
  transition: all 0.2s;
  text-decoration: none;
  cursor: pointer;
}
.icon-btn:hover {
  color: var(--ink);
  border-color: var(--line-2);
  background: var(--paper-2);
  transform: translateY(-1px);
}
.icon-btn svg { width: 18px; height: 18px; }
.theme-btn svg { transition: transform .8s var(--ease); }
.theme-btn:hover svg { transform: rotate(45deg); }
.theme-btn .i-moon { display: none; }
[data-theme="dark"] .theme-btn .i-sun { display: none; }
[data-theme="dark"] .theme-btn .i-moon { display: block; }

.progress-bar-track {
  position: absolute; left: 0; bottom: -1px; width: 100%; height: 2px;
  background: transparent;
}
.progress-bar-fill {
  height: 100%; width: 100%;
  background: var(--seal);
  transform-origin: 0 50%;
  transform: scaleX(0);
}

/* ============ 顶部页眉区 (detail-header-section，与原版排版完全一致) ============ */
.detail-header-section {
  background: var(--paper-2);
  border-bottom: 1px solid var(--line);
  padding: 40px 0 34px;
  margin-top: var(--nav-h);
}

.header-nav-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 22px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 6px 14px;
  border-radius: 8px;
  transition: all .2s var(--ease);
}
.back-link:hover {
  background: var(--paper-3);
  color: var(--seal);
  border-color: var(--line-2);
  transform: translateX(-2px);
}
.back-arrow { font-size: 15px; }

.page-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  font-family: var(--f-mono);
  color: var(--ink-2);
  background: var(--paper);
  padding: 5px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
}
.page-badge .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--seal);
}

.header-main { width: 100%; }

.page-title {
  font-family: var(--f-zh);
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1.35;
  margin-bottom: 12px;
}

.page-desc {
  font-size: 15px;
  color: var(--ink-2);
  line-height: 1.75;
  max-width: 860px;
}

.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 12.5px;
  color: var(--ink-3);
  font-family: var(--f-mono);
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ============ Paper 1 专属：分类过滤栏与 3 列技能网格 ============ */
.filter-controls-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 20px;
  margin-top: 18px;
  border-top: 1px solid var(--line);
}

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

.cat-tab-btn {
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink-2);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all .2s var(--ease);
}

.cat-tab-btn:hover {
  background: var(--paper-3);
  color: var(--ink);
  border-color: var(--line-2);
}

.cat-tab-btn.active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.cat-count {
  font-size: 10.5px;
  font-family: var(--f-mono);
  padding: 1px 6px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.08);
}

.cat-tab-btn.active .cat-count {
  background: rgba(255, 255, 255, 0.22);
  color: var(--paper);
}

.search-box {
  position: relative;
  min-width: 280px;
  max-width: 340px;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ink-3);
  pointer-events: none;
}

.search-input {
  width: 100%;
  height: 38px;
  padding: 0 14px 0 36px;
  font-size: 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  outline: none;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-ui);
  transition: border-color .2s, box-shadow .2s;
}

.search-input:focus {
  border-color: var(--seal);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--seal) 15%, transparent);
}

.skills-catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
  margin-bottom: 48px;
}

@media (max-width: 1100px) {
  .skills-catalog-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 680px) {
  .skills-catalog-grid { grid-template-columns: 1fr; }
}

.empty-results {
  text-align: center;
  padding: 48px 24px;
  color: var(--ink-3);
  background: var(--paper-2);
  border: 1px dashed var(--line-2);
  border-radius: 12px;
  margin: 32px 0;
  font-size: 14.5px;
}

.skill-card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  color: inherit;
  transition: all .25s var(--ease);
  position: relative;
}

.skill-card:hover {
  border-color: var(--line-2);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  background: var(--paper);
}

.card-head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
  position: relative;
}

.skill-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.card-meta {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1;
}

.skill-category-tag {
  font-size: 10.5px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  width: fit-content;
  font-family: var(--f-mono);
}

.tag-academic { background: var(--jade-light); color: var(--jade); border: 1px solid color-mix(in srgb, var(--jade) 30%, transparent); }
.tag-compression { background: var(--amber-light); color: var(--amber); border: 1px solid color-mix(in srgb, var(--amber) 30%, transparent); }
.tag-agent { background: var(--blue-light); color: var(--blue); border: 1px solid color-mix(in srgb, var(--blue) 30%, transparent); }
.tag-multimodal { background: #fdf4ff; color: #a21caf; border: 1px solid rgba(162, 28, 175, 0.2); }
[data-theme="dark"] .tag-multimodal { background: #26112a; color: #e879f9; }
.tag-humanize { background: #fce7f3; color: #be185d; border: 1px solid rgba(190, 24, 93, 0.2); }
[data-theme="dark"] .tag-humanize { background: #2c111d; color: #f472b6; }

.author-tag {
  font-size: 11px;
  color: var(--ink-3);
  font-family: var(--f-mono);
}

.external-icon {
  font-size: 16px;
  color: var(--ink-4);
  transition: transform .2s, color .2s;
}

.skill-card:hover .external-icon {
  color: var(--seal);
  transform: translate(2px, -2px);
}

.card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.skill-title {
  font-family: var(--f-zh);
  font-size: 16.5px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.35;
  margin-bottom: 8px;
  transition: color .2s;
}

.skill-card:hover .skill-title {
  color: var(--seal);
}

.skill-one-sentence {
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.65;
  margin-bottom: 16px;
  flex: 1;
}

.card-footer {
  border-top: 1px solid var(--line);
  padding-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.stag {
  font-size: 11px;
  color: var(--ink-3);
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: var(--f-mono);
}

.jump-hint {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-3);
  transition: color .2s, transform .2s;
}

.skill-card:hover .jump-hint {
  color: var(--seal);
}

.jump-hint .arrow {
  transition: transform .2s;
}

.skill-card:hover .jump-hint .arrow {
  transform: translateX(3px);
}

/* ============ 正文主卡片容器 (article-main-body，原版大白底卡片) ============ */
.detail-content-shell {
  margin-top: 32px;
  margin-bottom: 72px;
}

.article-main-body {
  width: 100%;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 40px;
  box-shadow: var(--shadow-sm);
  box-sizing: border-box;
}

/* 核心导读 Callout (lead-callout) */
.lead-callout {
  display: flex;
  gap: 14px;
  background: color-mix(in srgb, var(--jade-light) 60%, var(--paper));
  border-left: 4px solid var(--jade);
  border-radius: 0 10px 10px 0;
  padding: 18px 22px;
  margin-bottom: 38px;
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.lead-icon { font-size: 22px; line-height: 1; flex-shrink: 0; }
.lead-text {
  font-size: 14.5px;
  color: var(--ink);
  line-height: 1.75;
}
.lead-text strong { color: var(--ink); font-weight: 600; }

/* 步骤板块 (step-section) */
.step-section {
  margin-bottom: 42px;
}
.step-section:last-of-type { margin-bottom: 0; }

.step-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.step-badge {
  font-size: 11.5px;
  font-weight: 700;
  font-family: var(--f-mono);
  background: var(--paper);
  color: var(--ink-2);
  padding: 3px 8px;
  border-radius: 6px;
  border: 1px solid var(--line);
}
.step-badge-accent {
  background: var(--seal);
  color: var(--seal-ink);
  border-color: var(--seal);
}
.step-title {
  font-family: var(--f-zh);
  font-size: 20px;
  font-weight: 400;
  color: var(--ink);
}
.step-desc {
  font-size: 15px;
  color: var(--ink-2);
  line-height: 1.75;
  margin-bottom: 18px;
}
.step-desc strong { color: var(--ink); }

/* 图示视窗卡片 (step-image-card) */
.step-image-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}
.image-window-header {
  background: var(--paper-3);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--line);
}
.window-dots { display: flex; gap: 6px; }
.dot-w { width: 9px; height: 9px; border-radius: 50%; }
.dot-w.red { background: #e06c75; }
.dot-w.yellow { background: #e5c07b; }
.dot-w.green { background: #98c379; }
.window-title {
  font-size: 11.5px;
  color: var(--ink-3);
  font-family: var(--f-mono);
}
.image-wrap {
  background: #11110f;
  padding: 12px;
  display: flex;
  justify-content: center;
}
.step-screenshot {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 6px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}
.image-caption {
  padding: 12px 18px;
  background: var(--paper);
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  color: var(--ink-2);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.caption-tag {
  font-size: 11px;
  font-weight: 700;
  font-family: var(--f-mono);
  background: var(--paper-2);
  color: var(--seal);
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid var(--line);
}

/* 核心提示词卡片 (prompt-master-card) */
.prompt-master-card {
  background: var(--paper);
  border: 2px solid var(--seal);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 26px;
  box-shadow: 0 4px 16px -4px rgba(184, 67, 47, 0.1);
}
.prompt-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  flex-wrap: wrap;
  gap: 10px;
}
.prompt-card-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--seal);
}
.btn-copy-prompt {
  background: var(--seal);
  color: var(--seal-ink);
  border: none;
  padding: 7px 16px;
  border-radius: 8px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s var(--ease);
}
.btn-copy-prompt:hover {
  background: color-mix(in srgb, var(--seal) 85%, #000);
  transform: translateY(-1px);
}
.prompt-text-quote {
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink);
  background: var(--paper-2);
  padding: 18px 22px;
  border-radius: 8px;
  border-left: 4px solid var(--seal);
  line-height: 1.7;
}
.prompt-explanation {
  margin-top: 16px;
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.75;
}
.prompt-explanation ul { margin: 8px 0 0 16px; padding: 0; list-style: disc; }
.prompt-explanation li { margin-bottom: 4px; }
.prompt-explanation code, code {
  background: var(--paper-2);
  color: var(--seal);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--f-mono);
  font-size: 12.5px;
  border: 1px solid var(--line);
}

/* 组装器小工具 (builder-tool-card) */
.builder-tool-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
}
.builder-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}
.builder-desc {
  font-size: 13px;
  color: var(--ink-3);
  margin-bottom: 12px;
}
.builder-input {
  width: 100%;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--line-2);
  font-size: 13.5px;
  font-family: var(--f-mono);
  outline: none;
  background: var(--paper-2);
  color: var(--ink);
  margin-bottom: 12px;
}
.builder-input:focus {
  border-color: var(--seal);
  background: var(--paper);
}
.assembled-output {
  background: var(--paper-2);
  border: 1px dashed var(--line-2);
  border-radius: 8px;
  padding: 14px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.assembled-text {
  font-size: 13.5px;
  color: var(--ink);
  line-height: 1.65;
  font-weight: 500;
  flex: 1;
}

/* 优势卡片网格 (adv-cards-grid 3 列，原版布局) */
.advantages-section {
  margin-bottom: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.section-sub-title {
  font-family: var(--f-zh);
  font-size: 20px;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 20px;
}
.adv-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.adv-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
  transition: transform .25s var(--ease), border-color .25s;
}
.adv-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-2);
}
.adv-icon { font-size: 24px; margin-bottom: 10px; }
.adv-name {
  font-family: var(--f-zh);
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 8px;
}
.adv-text {
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.65;
}

/* ============ 翻页按钮 (article-pager，匹配原版双向导航) ============ */
.detail-actions.article-pager {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.btn-pager {
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: all .2s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  cursor: pointer;
}
.btn-pager:hover {
  background: var(--paper-2);
  border-color: var(--line-2);
  color: var(--seal);
  transform: translateY(-1px);
}
.btn-pager.btn-disabled {
  background: var(--paper-2);
  color: var(--ink-4);
  border-color: var(--line);
  cursor: not-allowed;
  pointer-events: none;
  box-shadow: none;
  opacity: 0.65;
}
[data-theme="dark"] .btn-pager.btn-disabled {
  background: var(--night-2);
  color: var(--night-mute);
  border-color: var(--night-line);
}

/* ============ 作用域对比卡片 (Paper 3，scope-cards-grid) ============ */
.scope-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 14px;
}
.scope-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
  background: var(--paper);
}
.scope-card.global-card { border-left: 4px solid #3b82f6; }
.scope-card.local-card { border-left: 4px solid var(--jade); }
.scope-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.scope-name {
  font-family: var(--f-zh);
  font-size: 15.5px;
  font-weight: 500;
  color: var(--ink);
}
.scope-text {
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.6;
  margin-bottom: 14px;
}
.scope-path-box {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.path-label {
  font-size: 11px;
  color: var(--ink-3);
  font-weight: 600;
}
.path-code {
  font-family: var(--f-mono);
  color: var(--ink);
  word-break: break-all;
  font-size: 11.5px;
}

/* 途径列表 (Paper 3，methods-list) */
.methods-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}
.method-item {
  display: flex;
  gap: 16px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
}
.method-num {
  font-size: 11.5px;
  font-weight: 700;
  font-family: var(--f-mono);
  background: var(--ink);
  color: var(--paper);
  padding: 4px 10px;
  border-radius: 6px;
  height: fit-content;
  white-space: nowrap;
}
.method-body h4 {
  font-family: var(--f-zh);
  font-size: 15.5px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 6px;
}
.method-body p {
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.6;
}

/* 提示词卡片组 (Paper 3，prompt-box-group) */
.prompt-box-group {
  background: var(--paper);
  border: 1.5px solid var(--seal);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(184, 67, 47, 0.06);
}
.prompt-tab-bar {
  display: flex;
  background: var(--paper-3);
  border-bottom: 1px solid var(--line);
}
.tab-btn {
  flex: 1;
  padding: 12px;
  background: transparent;
  border: none;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-3);
  cursor: pointer;
  transition: all 0.2s;
}
.tab-btn.active {
  background: var(--paper);
  color: var(--seal);
}
.prompt-card-content { padding: 20px; }
.prompt-code-wrap {
  background: var(--paper-2);
  border: 1px dashed var(--seal);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.prompt-code-text {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.6;
  flex: 1;
}
.prompt-lead { color: var(--seal); font-weight: 700; }
.prompt-tip {
  font-size: 12.5px;
  color: var(--seal);
  margin: 12px 0 0;
}

/* 规则堆叠 (Paper 3，rules-stack) */
.rules-stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}
.rule-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
}
.rule-card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.rule-badge {
  font-size: 11px;
  font-weight: 700;
  font-family: var(--f-mono);
  background: var(--paper-2);
  color: var(--seal);
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid var(--line);
}
.rule-title {
  font-family: var(--f-zh);
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
}
.rule-content p {
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.7;
  margin-bottom: 8px;
}
.rule-sub-list {
  margin: 8px 0 10px 20px;
  padding: 0;
  list-style: decimal;
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.7;
}
.rule-sub-note {
  font-size: 13px;
  color: var(--seal);
  font-weight: 600;
}
.rule-highlight {
  background: color-mix(in srgb, var(--seal) 8%, var(--paper));
  padding: 8px 12px;
  border-radius: 6px;
  border-left: 3px solid var(--seal);
}
.full-copy-box {
  background: var(--night);
  border-radius: 12px;
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.full-copy-left strong { font-size: 14.5px; color: var(--night-ink); display: block; }
.full-copy-left span { font-size: 12.5px; color: var(--night-mute); }

/* ============ Paper 4 专属排版元素 ============ */
.error-alert-box {
  display: flex;
  align-items: center;
  gap: 14px;
  background: color-mix(in srgb, var(--seal) 8%, var(--paper));
  border: 1px solid color-mix(in srgb, var(--seal) 30%, transparent);
  border-radius: 10px;
  padding: 14px 18px;
  margin-bottom: 22px;
}
.error-icon { font-size: 20px; }
.error-content { display: flex; flex-direction: column; gap: 4px; }
.error-title { font-size: 11.5px; font-weight: 700; color: var(--seal); font-family: var(--f-mono); text-transform: uppercase; }
.error-content code { color: var(--seal); font-family: var(--f-mono); font-size: 13px; }

.explain-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px 22px;
  margin-bottom: 22px;
}
.explain-title {
  font-family: var(--f-zh);
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 10px;
}
.styled-list {
  padding-left: 20px;
  list-style: disc;
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.8;
}

.sub-heading {
  font-family: var(--f-zh);
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  margin: 26px 0 14px;
}
.table-container {
  overflow-x: auto;
  margin-bottom: 22px;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.modern-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13.5px;
}
.modern-table th {
  background: var(--paper-3);
  color: var(--ink);
  font-weight: 600;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
}
.modern-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-2);
}
.modern-table tr:last-child td { border-bottom: none; }
.status-pill {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  font-family: var(--f-mono);
}
.status-high { background: var(--jade-light); color: var(--jade); border: 1px solid var(--jade); }
.status-low { background: var(--amber-light); color: var(--amber); border: 1px solid var(--amber); }
.status-fail { background: color-mix(in srgb, var(--seal) 12%, var(--paper)); color: var(--seal); border: 1px solid var(--seal); }

.tip-box {
  background: var(--jade-light);
  border: 1px solid var(--jade);
  color: var(--ink);
  padding: 14px 18px;
  border-radius: 8px;
  font-size: 13.5px;
  line-height: 1.7;
}

.dual-check-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: var(--paper);
  border: 1px dashed var(--line-2);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.dual-box {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 20px;
  text-align: center;
  flex: 1;
  min-width: 220px;
}
.dual-box-core {
  border-color: var(--seal);
  background: color-mix(in srgb, var(--seal) 8%, var(--paper));
}
.box-tag { font-size: 11px; font-weight: 700; color: var(--ink-3); display: block; margin-bottom: 4px; font-family: var(--f-mono); }
.dual-box-core .box-tag { color: var(--seal); }
.box-title { font-family: var(--f-zh); font-size: 15px; font-weight: 500; color: var(--ink); display: block; margin-bottom: 4px; }
.box-desc { font-size: 12.5px; color: var(--ink-3); }
.dual-plus { font-size: 20px; font-weight: bold; color: var(--ink-4); }

.action-steps-group { display: flex; flex-direction: column; gap: 20px; }
.action-step-card {
  display: flex;
  gap: 20px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
}
.step-num {
  font-size: 12px;
  font-weight: 700;
  font-family: var(--f-mono);
  background: var(--ink);
  color: var(--paper);
  padding: 6px 12px;
  border-radius: 6px;
  height: fit-content;
}
.step-body { flex: 1; }
.step-body h4 { font-family: var(--f-zh); font-size: 16px; font-weight: 500; color: var(--ink); margin-bottom: 8px; }
.step-body p { font-size: 14px; color: var(--ink-2); line-height: 1.65; margin-bottom: 8px; }
.link-bar {
  background: var(--paper-2);
  border: 1px solid var(--line);
  padding: 8px 12px;
  border-radius: 6px;
  margin-bottom: 10px;
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--seal);
  word-break: break-all;
}
.copy-field-card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  margin: 12px 0;
}
.copy-field-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 12.5px;
  font-weight: 600;
}
.copy-btn-sm {
  background: var(--ink);
  color: var(--paper);
  font-size: 11.5px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 6px;
  border: 0;
  cursor: pointer;
}
.copy-btn-sm:hover { background: var(--seal); }
.copy-field-text {
  font-family: var(--f-mono);
  font-size: 12.5px;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 10px 12px;
  border-radius: 6px;
  margin: 0;
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.6;
}

.method-card-grid, .extra-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.method-card, .extra-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
}
.method-icon, .extra-icon { font-size: 24px; margin-bottom: 10px; }
.method-title { font-family: var(--f-zh); font-size: 15.5px; font-weight: 500; color: var(--ink); margin-bottom: 8px; }
.method-text, .extra-text { font-size: 13px; color: var(--ink-2); line-height: 1.65; margin: 0; }
.extra-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; font-family: var(--f-zh); font-size: 15px; font-weight: 500; }

.solutions-accordion { display: flex; flex-direction: column; gap: 14px; }
.sol-item {
  display: flex;
  gap: 16px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px 22px;
}
.sol-badge {
  font-size: 11.5px;
  font-weight: 700;
  font-family: var(--f-mono);
  background: var(--paper-2);
  color: var(--seal);
  border: 1px solid var(--line);
  padding: 4px 8px;
  border-radius: 6px;
  height: fit-content;
  white-space: nowrap;
}
.sol-title { font-family: var(--f-zh); font-size: 15.5px; font-weight: 500; color: var(--ink); margin-bottom: 6px; }
.sol-desc { font-size: 13.5px; color: var(--ink-2); line-height: 1.65; margin: 0; }

/* ============ Paper 5 专属双栏与 Sticky TOC 排版 ============ */
.paper5-content-shell {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 36px;
  position: relative;
  margin-top: 32px;
  margin-bottom: 72px;
}
.paper5-main-body {
  flex: 1;
  min-width: 0;
  max-width: 860px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 40px;
  box-shadow: var(--shadow-sm);
  box-sizing: border-box;
}

.pipeline-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-weight: 600;
  font-size: 13.5px;
}
.flow-node {
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 4px 10px;
  border-radius: 6px;
}
.flow-arrow { color: var(--seal); font-weight: bold; }

.step-sub-block {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px dashed var(--line);
}
.sub-block-title {
  font-family: var(--f-zh);
  font-size: 16.5px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 10px;
}

.figure-box {
  margin: 18px 0 24px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.figure-img-wrap {
  width: 100%;
  display: flex;
  justify-content: center;
  background: var(--paper);
  padding: 8px;
}
.figure-img {
  width: 100%;
  max-height: 520px;
  object-fit: contain;
  display: block;
}
.figure-caption {
  display: block;
  padding: 8px 16px;
  font-size: 12.5px;
  color: var(--ink-3);
  text-align: center;
  background: var(--paper-3);
  border-top: 1px solid var(--line);
  font-family: var(--f-mono);
}

.mode-card {
  border-radius: 12px;
  padding: 20px;
  margin: 18px 0;
  background: var(--paper);
  border: 1px solid var(--line);
}
.mode-agent { border-left: 4px solid var(--blue); }
.mode-manual { border-left: 4px solid var(--amber); }
.mode-badge { font-family: var(--f-zh); font-size: 14.5px; font-weight: 500; color: var(--ink); margin-bottom: 8px; }
.mode-desc { font-size: 14px; color: var(--ink-2); line-height: 1.7; margin-bottom: 12px; }

.filter-principle-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
}
.principle-title { font-family: var(--f-zh); font-size: 16px; font-weight: 500; color: var(--ink); margin-bottom: 16px; }
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.p-item { display: flex; gap: 12px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 8px; padding: 14px; }
.p-num {
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--seal); color: var(--seal-ink);
  font-size: 13px; font-weight: bold;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.p-item strong { display: block; font-family: var(--f-zh); font-size: 14.5px; color: var(--ink); margin-bottom: 4px; }
.p-item p { font-size: 12.5px; color: var(--ink-2); line-height: 1.6; margin: 0; }

.prompt-group-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 16px 0; }
.prompt-box { background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 12px; }
.prompt-box-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.prompt-tag { font-family: var(--f-mono); font-size: 12px; color: var(--seal); }
.copy-btn-xs {
  background: var(--ink); color: var(--paper);
  font-size: 11px; padding: 3px 8px; border-radius: 4px; border: 0; cursor: pointer;
}
.prompt-box code { display: block; font-family: var(--f-mono); font-size: 12.5px; color: var(--ink); background: var(--paper-2); border: 1px solid var(--line); border-radius: 6px; padding: 8px 10px; word-break: break-all; }

.summary-card {
  background: var(--paper);
  border-left: 4px solid var(--jade);
  padding: 18px 22px;
  border-radius: 0 8px 8px 0;
  font-size: 14.5px;
  color: var(--ink-2);
  line-height: 1.8;
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.summary-card p { margin-bottom: 10px; }
.summary-card p:last-child { margin-bottom: 0; }

/* 右侧粘性目录导航栏 (Alpha-Lab 科技极简风格) */
.article-sidebar-right {
  width: 290px;
  flex-shrink: 0;
  position: sticky;
  top: 88px;
  align-self: flex-start;
  z-index: 40;
}
.sticky-toc-container { width: 100%; }
.toc-card-panel {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.toc-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--paper-3);
  border-bottom: 1px solid var(--line);
}
.toc-head-left { display: flex; align-items: center; gap: 8px; }
.toc-status-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--seal); }
.toc-head-title { font-family: var(--f-zh); font-size: 14.5px; font-weight: 500; color: var(--ink); }
.toc-head-badge { font: 500 10px var(--f-mono); color: var(--ink-3); }

.toc-progress-track { width: 100%; height: 2px; background: var(--line); }
.toc-progress-bar { height: 100%; background: var(--seal); transition: width .15s linear; }

.toc-tree-nav {
  padding: 18px 16px;
  position: relative;
  max-height: calc(100vh - 240px);
  overflow-y: auto;
}
.toc-tree-root { display: flex; flex-direction: column; gap: 4px; }
.toc-node-main, .toc-node-sub {
  cursor: pointer;
  border-radius: 6px;
  padding: 6px 10px;
  transition: all .2s;
}
.toc-node-main {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--f-zh);
  font-size: 13.5px;
  color: var(--ink-2);
}
.toc-node-main:hover, .toc-node-sub:hover { background: var(--paper-3); color: var(--ink); }
.toc-node-main.is-active {
  color: var(--seal);
  font-weight: 500;
  background: var(--paper);
}
.node-num { font-family: var(--f-mono); font-size: 11px; opacity: .7; }
.toc-node-sub {
  margin-left: 20px;
  font-size: 12px;
  color: var(--ink-3);
}
.toc-node-sub.is-active {
  color: var(--seal);
  font-weight: 500;
  background: var(--paper);
}

.toc-panel-footer {
  padding: 12px 18px;
  border-top: 1px solid var(--line);
  background: var(--paper-3);
}
.toc-back-top-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  font-size: 12.5px;
  color: var(--ink-2);
  cursor: pointer;
}
.toc-back-top-btn:hover { color: var(--seal); }
.progress-percent { font-family: var(--f-mono); font-size: 11px; }

/* 响应式断点控制 */
@media (max-width: 1100px) {
  .paper5-content-shell { flex-direction: column; }
  .paper5-main-body { max-width: 100%; }
  .article-sidebar-right { display: none; }
}

@media (max-width: 860px) {
  .article-main-body, .paper5-main-body { padding: 24px 18px; }
  .adv-cards-grid, .method-card-grid, .extra-grid, .principle-grid { grid-template-columns: 1fr; }
  .scope-cards-grid, .prompt-group-grid { grid-template-columns: 1fr; }
  .detail-actions.article-pager { flex-direction: column; align-items: stretch; }
  .btn-pager { justify-content: center; }
}

@media (max-width: 640px) {
  .nav-item { padding: 6px 8px; font-size: 13px; }
  .nav-actions { gap: 8px; }
}

@media (max-width: 480px) {
  .desktop-nav { display: none; }
}

/* ============ Toast 提示 ============ */
.toast, .toast-notice {
  position: fixed;
  bottom: 32px; left: 50%;
  transform: translate(-50%, 20px);
  background: var(--ink);
  color: var(--paper);
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 500;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s;
}
.toast.show, .toast-notice.show {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

/* ============ 原版 new-page 标准整站页脚 (foot) ============ */
.foot {
  padding: clamp(24px, 4vw, 48px) 0 0;
  overflow: hidden;
  border-top: 1px solid var(--line);
  margin-top: 60px;
}
.foot .wrap {
  width: min(1320px, 100% - clamp(32px, 6vw, 96px));
  margin: 0 auto;
}
.foot-grid {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1fr) minmax(0, 1.15fr);
  gap: 32px;
  padding-top: 10px;
}
.foot-grid h4 {
  font: 500 11px var(--f-mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 16px;
}
.foot-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.foot-grid li + li {
  margin-top: 8px;
}
.foot-grid a {
  font-size: 14.5px;
  color: var(--ink-2);
  text-decoration: none;
  transition: color .3s;
}
.foot-grid a:hover {
  color: var(--ink);
}
.foot-grid .ext::after {
  content: " ↗";
  font-size: .85em;
  color: var(--ink-4);
}

/* 页脚游戏厅卡片 */
.game-hub {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 20px 22px;
  transition: border-color .4s;
}
.game-hub:hover {
  border-color: var(--line-2);
}
.gh-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.gh-icon {
  width: 32px;
  height: 32px;
  flex: none;
  border-radius: 9px;
  background: var(--paper-3);
  box-shadow: inset 0 0 0 1px var(--line);
  display: grid;
  place-items: center;
  font-size: 15px;
}
.gh-title {
  font-family: var(--f-zh);
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
}
.gh-status {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--jade);
  font-size: 10px;
  font-family: var(--f-mono);
}
.gh-status i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--jade);
}
.gh-desc {
  font-size: 12.5px;
  color: var(--ink-3);
  margin-bottom: 14px;
}
.gh-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.game-hub .gh-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 12px;
  border-radius: 6px;
  background: var(--paper);
  box-shadow: inset 0 0 0 1px var(--line);
  font-size: 12.5px;
  color: var(--ink-2);
  text-decoration: none;
  transition: color .3s, box-shadow .3s;
}
.game-hub .gh-btn:hover {
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line-2);
}
.gh-name {
  flex: 1;
  white-space: nowrap;
}
.gh-arr {
  font: 500 11px var(--f-mono);
  color: var(--ink-4);
  transition: color .3s, transform .3s var(--ease);
}
.game-hub .gh-btn:hover .gh-arr {
  color: var(--seal);
  transform: translate(1px, -1px);
}

/* 联系我与邮箱卡片 */
.foot-grid .mail {
  text-align: left;
}
.mail .mono {
  color: var(--ink-3);
  display: block;
  font-size: 12.5px;
  line-height: 1.5;
  margin-bottom: 12px;
  font-family: var(--f-mono);
}
.foot-grid .mail-card {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  padding: 12px 14px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  transition: border-color .4s;
}
.foot-grid .mail-card:hover {
  border-color: var(--line-2);
}
.foot-grid .mail-card a {
  font-family: var(--f-en);
  font-size: 16px;
  line-height: 1.2;
  color: var(--ink);
  text-decoration: none;
}
.foot-grid .mail-card a:hover {
  color: var(--seal);
}
.copy {
  position: relative;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-2);
  border-radius: 4px;
}
.copy:hover {
  color: var(--ink);
  background: var(--paper-3);
}
.copy svg {
  width: 16px;
  height: 16px;
}
.copy .ok {
  display: none;
}
.copy.done .ok {
  display: block;
  color: var(--jade);
}
.copy.done .cp {
  display: none;
}

/* 巨幅艺术字 */
.giant {
  font-family: var(--f-en);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(80px, 20.6vw, 310px);
  line-height: .92;
  letter-spacing: -.035em;
  white-space: nowrap;
  margin: clamp(48px, 7vw, 96px) 0 0 -.04em;
  color: var(--ink);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding-bottom: .02em;
}
.giant .dot {
  color: var(--seal);
}

/* 底栏版权信息 */
.foot-bot {
  position: relative;
  z-index: 1;
  padding: 20px 0 26px;
  border-top: 1px solid var(--line);
  color: var(--ink-3);
  background: var(--paper);
  font-family: var(--f-mono);
  font-size: 12px;
}
.foot-bot .wrap {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.foot-bot a {
  color: var(--ink-3);
  text-decoration: none;
  transition: color .2s;
}
.foot-bot a:hover {
  color: var(--ink);
}
.tlink {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.tlink .arr {
  display: inline-flex;
  gap: 2px;
}
.tlink svg {
  width: 14px;
  height: 14px;
}

/* 响应式断点控制 */
@media (max-width: 1100px) {
  .foot-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}
@media (max-width: 560px) {
  .foot-grid {
    grid-template-columns: 1fr 1fr;
  }
  .foot-bot .wrap {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

/* ==========================================================================
   主页导航栏与页脚同步样式（覆盖层，与 index1.html 保持一致）
   ========================================================================== */
.nav .wrap { justify-content: flex-start; }
.nav-links { display: flex; align-items: center; gap: 4px; position: relative; margin-left: auto; }
.nav-links a { position: relative; padding: 8px 14px; font-size: 14px; color: var(--ink-2); transition: color .3s; }
.nav-links a sup { font: 500 9px var(--f-mono); color: var(--ink-4); margin-left: 3px; top: -.7em; }
.nav-links a:hover, .nav-links a.on { color: var(--ink); }
.nav-ind { position: absolute; bottom: 2px; height: 1px; background: var(--seal); left: 0; width: 0; opacity: 0; transition: left .5s var(--ease), width .5s var(--ease), opacity .3s; }
.nav-tools { display: flex; align-items: center; gap: 6px; margin-left: 16px; }

/* 图标按钮统一为圆形透明（对齐主页） */
.icon-btn { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; color: var(--ink-2); border: 1px solid transparent; background: transparent; transition: color .3s, border-color .3s, background-color .3s; transform: none; }
.icon-btn:hover { color: var(--ink); border-color: var(--line-2); background: transparent; transform: none; }
.icon-btn svg { width: 17px; height: 17px; }

/* 移动端菜单 */
.menu-btn { display: none; }
.menu-btn span { display: block; width: 16px; height: 1px; background: currentColor; transition: transform .5s var(--ease); }
.menu-btn span + span { margin-top: 5px; }
.menu-open .menu-btn span:first-child { transform: translateY(3px) rotate(45deg); }
.menu-open .menu-btn span:last-child { transform: translateY(-3px) rotate(-45deg); }
.sheet { position: fixed; inset: 0; z-index: 45; background: var(--paper); padding: calc(var(--nav-h) + 40px) var(--gut) 40px; display: flex; flex-direction: column; justify-content: space-between; clip-path: inset(0 0 100% 0); visibility: hidden; transition: clip-path .8s var(--ease-io), visibility 0s .8s; }
.menu-open .sheet { clip-path: inset(0 0 0 0); visibility: visible; transition: clip-path .8s var(--ease-io); }
.sheet a.big { display: flex; align-items: baseline; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); font-family: var(--f-zh); font-size: 34px; font-weight: 300; color: var(--ink); }
.sheet a.big .mono { color: var(--ink-4); }
.sheet .mono { color: var(--ink-3); }

/* 页脚列布局与主页保持一致（1.35fr/.8fr/1fr/1.15fr、gap 32px，见原有 .foot-grid 定义，此处不再覆盖） */

/* 复制按钮对齐主页圆形 */
.copy { position: relative; padding: 0; background: transparent; border-radius: 50%; }
.copy:hover { background: transparent; color: var(--ink); }

/* 移动端：隐藏链接、显示菜单按钮 */
@media (max-width: 860px) {
  .nav-links { display: none; }
  .menu-btn { display: grid; place-items: center; }
}