/* ==========================================================================
   Ginvest 研究 · Halo 主题样式
   期刊式排版：衬线标题 + 无衬线正文，暖纸色底，墨蓝主色，朱砂强调
   ========================================================================== */

/* ---------- 设计令牌 ---------- */
:root {
  --accent-base: #a8322d;
  --accent: var(--accent-base);
  --accent-soft: color-mix(in srgb, var(--accent) 9%, transparent);

  --paper: #f4f5f2;
  --surface: #ffffff;
  --surface-2: #fafbf8;
  --ink: #1a2230;
  --ink-2: #3a4454;
  --muted: #6f7785;
  --rule: #dcdfdc;
  --rule-strong: #1a2230;
  --primary: #17375e;
  --table-head: #eef1f5;
  --table-stripe: #f8f9f6;
  --mark: #fff1bf;
  --shadow: 0 1px 2px rgb(26 34 48 / 0.04), 0 4px 16px rgb(26 34 48 / 0.05);

  --serif: "Noto Serif SC", "Source Han Serif SC", "Source Han Serif CN", "Songti SC", "STSong", "SimSun", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC",
    "Segoe UI", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --heading: var(--serif);

  --wrap: 1180px;
  --aside: 300px;
  --header-h: 60px;
  --radius: 6px;
  color-scheme: light;
}

html[data-theme="dark"] {
  --accent: color-mix(in srgb, var(--accent-base) 62%, #ffffff);
  --paper: #10151c;
  --surface: #161d27;
  --surface-2: #131a23;
  --ink: #e8e4da;
  --ink-2: #c5c1b7;
  --muted: #8d95a3;
  --rule: #273141;
  --rule-strong: #e8e4da;
  --primary: #9dbce0;
  --table-head: #1d2633;
  --table-stripe: #18202b;
  --mark: rgb(255 214 102 / 0.22);
  --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 6px 20px rgb(0 0 0 / 0.25);
  color-scheme: dark;
}

body.hf-sans {
  --heading: var(--sans);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease;
}

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

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

h1,
h2,
h3,
h4 {
  font-family: var(--heading);
  color: var(--ink);
  line-height: 1.35;
  margin: 0;
}

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

[hidden] {
  display: none !important;
}

.gv-wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 20px;
}

.gv-dot {
  color: var(--rule);
  margin: 0 0.15em;
}

html[data-theme="dark"] .gv-dot {
  color: var(--muted);
}

.gv-empty {
  color: var(--muted);
  padding: 48px 0;
  text-align: center;
}

/* ---------- 阅读进度条 ---------- */
#gv-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0;
  background: var(--accent);
  z-index: 60;
  transition: width 0.1s linear;
}

/* ---------- 顶栏 ---------- */
.gv-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--rule);
}

.gv-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 28px;
}

.gv-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.gv-brand__logo {
  height: 28px;
  width: auto;
}

.gv-brand__name {
  font-family: var(--heading);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.02em;
}

.gv-nav {
  flex: 1;
  min-width: 0;
}

.gv-nav > ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 26px;
}

.gv-nav li {
  position: relative;
}

.gv-nav a {
  display: inline-block;
  font-size: 15px;
  color: var(--ink-2);
  padding: 4px 0;
  border-bottom: 2px solid transparent;
}

.gv-nav a:hover,
.gv-nav a.is-current {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.gv-nav__sub {
  display: none;
  position: absolute;
  top: 100%;
  left: -12px;
  min-width: 160px;
  list-style: none;
  margin: 0;
  padding: 6px 0;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.gv-nav__sub a {
  display: block;
  padding: 6px 14px;
  border: 0;
}

.gv-nav li.has-sub:hover > .gv-nav__sub,
.gv-nav li.has-sub:focus-within > .gv-nav__sub {
  display: block;
}

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

.gv-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.gv-icon-btn:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.icon-sun {
  display: none;
}

html[data-theme="dark"] .icon-sun {
  display: block;
}

html[data-theme="dark"] .icon-moon {
  display: none;
}

.gv-menu-btn {
  display: none;
}

/* ---------- 首页刊头 ---------- */
.gv-masthead {
  text-align: center;
  padding: 56px 0 36px;
}

.gv-masthead .gv-wrap {
  border-bottom: 3px double var(--rule-strong);
  padding-bottom: 28px;
}

.gv-masthead__date {
  margin: 0 0 14px;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.gv-masthead__title {
  font-size: clamp(40px, 7vw, 68px);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.1;
}

.gv-masthead__tagline {
  margin: 14px 0 0;
  font-family: var(--heading);
  font-size: 17px;
  color: var(--ink-2);
  letter-spacing: 0.18em;
}

/* ---------- 栏目导航 ---------- */
.gv-catnav {
  margin: 0 0 32px;
  border-bottom: 1px solid var(--rule);
}

.gv-catnav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4px 28px;
}

.gv-catnav a {
  display: inline-block;
  padding: 10px 0 12px;
  font-size: 15px;
  color: var(--ink-2);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.gv-catnav a.is-active {
  color: var(--ink);
  font-weight: 600;
  border-bottom-color: var(--accent);
}

.gv-catnav sup {
  font-size: 11px;
  color: var(--muted);
  margin-left: 2px;
  font-variant-numeric: tabular-nums;
}

.pg-category .gv-catnav,
.pg-tag .gv-catnav {
  margin-top: 28px;
}

/* ---------- 栏目标签（kicker） ---------- */
.gv-kicker {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--accent);
}

.gv-kicker + .gv-kicker {
  margin-left: 12px;
}

.gv-kicker--sm {
  font-size: 12px;
  letter-spacing: 0.06em;
  font-weight: 500;
}

.gv-badge {
  display: inline-block;
  font-size: 11px;
  padding: 0 6px;
  margin-left: 8px;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 3px;
  line-height: 18px;
}

.gv-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2px 6px;
  font-size: 13px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.gv-tag {
  color: var(--muted);
}

/* ---------- 首页导读 ---------- */
.gv-lead {
  margin: 0 0 44px;
  padding: 0 0 40px;
  border-bottom: 1px solid var(--rule);
}

.gv-lead__label {
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--muted);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.gv-lead__label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rule);
}

.gv-lead__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.gv-lead__grid.no-cover {
  grid-template-columns: minmax(0, 820px);
  justify-content: center;
  text-align: center;
}

.gv-lead__grid.no-cover .gv-meta {
  justify-content: center;
}

.gv-lead__title {
  margin: 10px 0 16px;
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 700;
  line-height: 1.3;
}

.gv-lead__excerpt {
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink-2);
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.gv-lead__cover img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
}

.gv-readmore {
  display: inline-block;
  margin-top: 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}

/* ---------- 主体布局 ---------- */
.gv-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--aside);
  gap: 56px;
  align-items: start;
  padding-bottom: 72px;
}

.gv-main {
  min-width: 0;
}

.gv-section-title {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--muted);
  margin: 0 0 6px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule-strong);
}

/* ---------- 文章列表行 ---------- */
.gv-list {
  display: flex;
  flex-direction: column;
}

.gv-item {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) auto;
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid var(--rule);
}

.gv-item__date {
  display: flex;
  flex-direction: column;
  padding-top: 3px;
  font-variant-numeric: tabular-nums;
}

.gv-item__year {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.gv-item__md {
  font-family: var(--heading);
  font-size: 20px;
  font-weight: 600;
  color: var(--ink-2);
  line-height: 1.3;
}

.gv-item__top {
  display: flex;
  align-items: center;
  min-height: 18px;
}

.gv-item__title {
  margin: 6px 0 8px;
  font-size: 21px;
  font-weight: 700;
  line-height: 1.45;
}

.gv-item__title a {
  background-image: linear-gradient(var(--accent), var(--accent));
  background-size: 0 1px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size 0.3s ease, color 0.15s;
}

.gv-item__title a:hover {
  background-size: 100% 1px;
  color: var(--ink);
}

.gv-item__excerpt {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.gv-item__cover {
  width: 168px;
  align-self: center;
}

.gv-item__cover img {
  display: block;
  width: 168px;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 4px;
}

/* ---------- 分页 ---------- */
.gv-pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 36px;
  font-size: 14px;
}

.gv-pager__btn {
  padding: 8px 16px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--surface);
}

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

.gv-pager__btn.is-disabled {
  pointer-events: none;
  opacity: 0.4;
}

.gv-pager__info {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* ---------- 侧边栏 ---------- */
.gv-aside {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  display: flex;
  flex-direction: column;
  gap: 34px;
  max-height: calc(100vh - var(--header-h) - 48px);
  overflow-y: auto;
  scrollbar-width: thin;
  padding-bottom: 8px;
}

.gv-box__title {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--muted);
  padding-bottom: 10px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--rule-strong);
}

.gv-about p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-2);
}

.gv-dirs {
  list-style: none;
  margin: 0;
  padding: 0;
}

.gv-dirs li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--rule);
}

.gv-dirs li:last-child {
  border-bottom: 0;
}

.gv-dirs a {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}

.gv-dirs__name {
  font-family: var(--heading);
  font-weight: 600;
  font-size: 15.5px;
}

.gv-dirs__count {
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.gv-dirs__desc {
  margin: 3px 0 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
}

.gv-popular {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
}

.gv-popular li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 8px;
  padding: 10px 0;
}

.gv-popular__no {
  font-family: var(--heading);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--rule);
  font-variant-numeric: tabular-nums;
}

html[data-theme="dark"] .gv-popular__no {
  color: #3a4659;
}

.gv-popular li:nth-child(-n + 3) .gv-popular__no {
  color: var(--accent);
}

.gv-popular a {
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.gv-popular__meta {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* ---------- 章节目录 ---------- */
/* 一条竖线贯穿，层级靠缩进；默认只显示章，当前章节自动展开 */
.gv-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.gv-toc > ol {
  border-left: 1px solid var(--rule);
}

.gv-toc li > ol {
  display: none;
}

.gv-toc li.is-pinned > ol,
.gv-toc li.is-open > ol {
  display: block;
}

.gv-toc a {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-left: -1px;
  padding: 4px 0 4px 14px;
  border-left: 2px solid transparent;
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

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

.gv-toc .lv-1 > a {
  padding-top: 6px;
  padding-bottom: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-2);
}

.gv-toc .lv-2 > a {
  padding-left: 26px;
  font-size: 13.5px;
}

.gv-toc .lv-3 > a {
  padding-left: 38px;
}

.gv-toc li.is-open > a {
  color: var(--ink);
}

.gv-toc a.is-active {
  color: var(--ink);
  font-weight: 600;
  border-left-color: var(--accent);
  background: var(--accent-soft);
}

/* ---------- 文章页 ---------- */
.gv-layout--article {
  padding-top: 44px;
}

.gv-article {
  min-width: 0;
  max-width: 780px;
}

.gv-article__head {
  padding-bottom: 26px;
  margin-bottom: 34px;
  border-bottom: 1px solid var(--rule);
}

.gv-article__kickers {
  margin-bottom: 14px;
}

.gv-article__title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.01em;
}

.gv-article__meta {
  margin-top: 18px;
  font-size: 13.5px;
}

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

.gv-article__cover {
  margin: 0 0 36px;
}

.gv-article__cover img {
  display: block;
  width: 100%;
  border-radius: var(--radius);
}

.gv-disclaimer {
  margin: 48px 0 0;
  padding: 16px 20px;
  background: var(--surface-2);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.gv-disclaimer p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.gv-article__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-top: 28px;
  font-size: 14px;
}

.gv-prevnext {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 48px;
}

.gv-prevnext__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  transition: border-color 0.15s, transform 0.15s;
}

.gv-prevnext__item:hover {
  border-color: var(--accent);
  color: inherit;
}

.gv-prevnext__item.is-next {
  text-align: right;
}

.gv-prevnext__label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.gv-prevnext__title {
  font-family: var(--heading);
  font-weight: 600;
  font-size: 15.5px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.gv-comments {
  margin-top: 56px;
}

.gv-comments .gv-section-title {
  margin-bottom: 20px;
}

/* ---------- 正文排版 ---------- */
.gv-prose {
  font-size: 17px;
  line-height: 1.9;
  color: var(--ink);
  word-break: break-word;
  overflow-wrap: anywhere;
  text-align: justify;
  hanging-punctuation: allow-end;
}

.gv-prose > :first-child {
  margin-top: 0 !important;
}

.gv-prose p {
  margin: 0 0 1.15em;
}

.gv-prose h1,
.gv-prose h2,
.gv-prose h3,
.gv-prose h4 {
  text-align: left;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

/* 正文里的一级标题（如“摘要”）当作带底线的章节标题 */
.gv-prose h1 {
  font-size: 26px;
  font-weight: 700;
  margin: 2.2em 0 0.9em;
  padding-bottom: 0.45em;
  border-bottom: 1px solid var(--rule-strong);
}

/* 二级标题：“一、二、三”式大章节，左侧朱砂标记 */
.gv-prose h2 {
  font-size: 23px;
  font-weight: 700;
  margin: 2.3em 0 0.9em;
  padding-left: 14px;
  border-left: 4px solid var(--accent);
  line-height: 1.4;
}

/* 三级标题：“（一）（二）”式小节 */
.gv-prose h3 {
  font-size: 19px;
  font-weight: 700;
  margin: 1.9em 0 0.7em;
  color: var(--primary);
}

.gv-prose h4 {
  font-family: var(--sans);
  font-size: 16.5px;
  font-weight: 700;
  margin: 1.6em 0 0.6em;
}

.gv-prose strong,
.gv-prose b {
  font-weight: 700;
  color: var(--ink);
}

.gv-prose mark {
  background: var(--mark);
  color: inherit;
  padding: 0 2px;
  border-radius: 2px;
}

.gv-prose a {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--primary) 35%, transparent);
  text-underline-offset: 3px;
}

.gv-prose a:hover {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

.gv-prose ul,
.gv-prose ol {
  margin: 0 0 1.2em;
  padding-left: 1.6em;
}

.gv-prose li {
  margin: 0.4em 0;
  padding-left: 0.2em;
}

.gv-prose li > p {
  margin: 0.3em 0;
}

.gv-prose ol > li::marker {
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.gv-prose ul > li::marker {
  color: var(--accent);
}

.gv-prose blockquote {
  margin: 1.6em 0;
  padding: 14px 20px;
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--ink-2);
}

.gv-prose blockquote > :last-child {
  margin-bottom: 0;
}

.gv-prose hr {
  border: 0;
  height: auto;
  margin: 2.6em 0;
  text-align: center;
  overflow: visible;
}

.gv-prose hr::before {
  content: "◆   ◆   ◆";
  white-space: pre;
  font-size: 9px;
  letter-spacing: 0.4em;
  color: var(--rule);
}

html[data-theme="dark"] .gv-prose hr::before {
  color: var(--muted);
}

.gv-prose img {
  display: block;
  margin: 1.6em auto;
  border-radius: 4px;
}

.gv-prose figure {
  margin: 1.8em 0;
}

.gv-prose figcaption {
  text-align: center;
  font-size: 13.5px;
  color: var(--muted);
  margin-top: 8px;
}

.gv-prose code {
  font-family: var(--mono);
  font-size: 0.88em;
  padding: 0.12em 0.4em;
  background: var(--table-head);
  border-radius: 4px;
}

.gv-prose pre {
  margin: 1.5em 0;
  padding: 16px 18px;
  overflow-x: auto;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.65;
  text-align: left;
}

.gv-prose pre code {
  padding: 0;
  background: none;
  font-size: inherit;
}

/* 研究报告风格表格：上下粗线，表头浅底，细分隔线 */
.gv-table-wrap {
  margin: 1.6em 0 1.8em;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-top: 2px solid var(--rule-strong);
  border-bottom: 2px solid var(--rule-strong);
}

.gv-prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
  line-height: 1.7;
  text-align: left;
  font-variant-numeric: tabular-nums;
}

.gv-prose > table {
  border-top: 2px solid var(--rule-strong);
  border-bottom: 2px solid var(--rule-strong);
  margin: 1.6em 0;
}

.gv-prose thead th {
  background: var(--table-head);
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
  border-bottom: 1px solid var(--rule-strong);
}

.gv-prose th,
.gv-prose td {
  padding: 10px 12px;
  vertical-align: top;
  border-bottom: 1px solid var(--rule);
}

.gv-prose tbody tr:last-child td {
  border-bottom: 0;
}

.gv-prose tbody tr:nth-child(even) td {
  background: var(--table-stripe);
}

.gv-prose tbody td:first-child {
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

.gv-table-wrap.is-scrollable {
  box-shadow: inset -12px 0 10px -10px rgb(0 0 0 / 0.15);
}

/* ---------- 通用页头 ---------- */
.gv-pagehead {
  text-align: center;
  padding: 56px 0 36px;
  margin-bottom: 36px;
  border-bottom: 3px double var(--rule-strong);
}

.gv-pagehead--compact {
  padding: 28px 0 28px;
  margin-bottom: 8px;
  border-bottom: 0;
}

.gv-pagehead__kicker {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.gv-pagehead__title {
  font-size: clamp(30px, 5vw, 44px);
  font-weight: 700;
}

.gv-pagehead__desc {
  max-width: 640px;
  margin: 14px auto 0;
  color: var(--ink-2);
  font-size: 15.5px;
}

.gv-pagehead__count {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.gv-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 14px;
}

/* ---------- 研究方向卡片 ---------- */
.gv-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  padding-bottom: 80px;
}

.gv-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--rule-strong);
  border-radius: 0 0 var(--radius) var(--radius);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.gv-card:hover {
  color: inherit;
  border-top-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.gv-card__no {
  font-family: var(--heading);
  font-size: 30px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.gv-card__title {
  font-size: 21px;
  font-weight: 700;
}

.gv-card__desc {
  margin: 0;
  flex: 1;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-2);
}

.gv-card__count {
  font-size: 13px;
  color: var(--muted);
}

/* ---------- 归档时间线 ---------- */
.gv-timeline__year {
  margin-bottom: 40px;
}

.gv-timeline__y {
  font-size: 34px;
  font-weight: 700;
  color: var(--ink);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule-strong);
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.gv-timeline__month {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.gv-timeline__m {
  font-size: 16px;
  font-weight: 600;
  color: var(--accent);
  padding-top: 4px;
}

.gv-timeline ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.gv-timeline li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  padding: 6px 0;
}

.gv-timeline time {
  font-size: 13px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  width: 42px;
  flex-shrink: 0;
}

.gv-timeline li > a:not(.gv-kicker) {
  font-family: var(--heading);
  font-size: 16.5px;
  font-weight: 600;
  flex: 1;
  min-width: 200px;
}

/* ---------- 标签云 / 友链 ---------- */
.gv-tagcloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 18px;
  padding-bottom: 80px;
}

.gv-tagcloud a {
  font-size: 16px;
  padding: 6px 14px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--surface);
}

.gv-tagcloud sup {
  font-size: 11px;
  color: var(--muted);
}

.gv-linkgroup {
  margin-bottom: 40px;
}

.gv-links {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.gv-link {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 14px;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}

.gv-link:hover {
  border-color: var(--accent);
  color: inherit;
}

.gv-link img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.gv-link strong {
  display: block;
  font-size: 15px;
}

.gv-link small {
  display: block;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.5;
}

/* ---------- 插件页面（通过 templates/layout.html 套用） ---------- */
.gv-plugin {
  min-height: 60vh;
  padding-block: 40px 72px;
}

.gv-plugin > h1:first-child,
.gv-plugin > h2:first-child {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 700;
  margin-bottom: 24px;
}

.gv-plugin a:not([class]) {
  color: var(--primary);
}

/* ---------- 错误页 ---------- */
.gv-error {
  text-align: center;
  padding: 96px 20px 120px;
}

.gv-error__code {
  margin: 0;
  font-family: var(--heading);
  font-size: 96px;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
}

.gv-error__title {
  margin-top: 18px;
  font-size: 26px;
}

.gv-error__detail {
  color: var(--muted);
}

/* ---------- 页脚 ---------- */
.gv-footer {
  border-top: 3px double var(--rule-strong);
  background: var(--surface-2);
  padding: 36px 0 44px;
}

.gv-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  flex-wrap: wrap;
}

.gv-footer__name {
  font-family: var(--heading);
  font-size: 22px;
  font-weight: 700;
}

.gv-footer__slogan {
  margin: 6px 0 0;
  font-size: 13.5px;
  color: var(--muted);
  letter-spacing: 0.12em;
}

.gv-footer__meta {
  text-align: right;
  font-size: 13px;
  color: var(--muted);
}

.gv-footer__meta p {
  margin: 2px 0;
}

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

/* ---------- 回到顶部 ---------- */
.gv-top {
  position: fixed;
  right: 24px;
  bottom: 28px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--rule);
  border-radius: 50%;
  background: var(--surface);
  color: var(--ink-2);
  box-shadow: var(--shadow);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s, color 0.15s;
  z-index: 40;
}

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

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

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .gv-layout {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 36px;
  }
  .gv-item__cover,
  .gv-item__cover img {
    width: 132px;
  }
}

@media (max-width: 860px) {
  .gv-layout {
    grid-template-columns: minmax(0, 1fr);
  }
  .gv-aside {
    position: static;
    max-height: none;
    overflow: visible;
    padding-top: 12px;
  }
  /* 窄屏时把目录移到正文上方，折叠显示 */
  .gv-layout--article {
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }
  .gv-layout--article > * {
    width: 100%;
    max-width: 100%;
  }
  .gv-layout--article .gv-aside {
    order: -1;
    gap: 0;
    padding: 0 0 24px;
  }
  .gv-layout--article .gv-aside > .gv-box:not(.gv-toc-box) {
    display: none;
  }
  .gv-toc-box {
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 12px 16px;
  }
  .gv-toc-box .gv-box__title {
    margin: 0;
    padding: 0;
    border: 0;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
  }
  .gv-toc-box .gv-box__title::after {
    content: "展开";
    letter-spacing: 0.1em;
    color: var(--accent);
  }
  .gv-toc-box.is-open .gv-box__title::after {
    content: "收起";
  }
  .gv-toc-box .gv-toc {
    display: none;
    margin-top: 12px;
    max-height: 50vh;
    overflow-y: auto;
  }
  .gv-toc-box.is-open .gv-toc {
    display: block;
  }
  .gv-lead__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }
  .gv-lead__cover {
    order: -1;
  }
}

@media (max-width: 720px) {
  :root {
    --header-h: 56px;
  }
  .gv-wrap {
    padding: 0 16px;
  }
  .gv-menu-btn {
    display: inline-flex;
  }
  .gv-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
    box-shadow: var(--shadow);
    display: none;
  }
  .gv-nav.is-open {
    display: block;
  }
  .gv-nav > ul {
    flex-direction: column;
    gap: 0;
    padding: 8px 16px 14px;
  }
  .gv-nav a {
    display: block;
    padding: 10px 0;
    border-bottom: 1px solid var(--rule);
  }
  .gv-nav a:hover,
  .gv-nav a.is-current {
    border-bottom-color: var(--rule);
  }
  .gv-nav__sub {
    display: block;
    position: static;
    border: 0;
    box-shadow: none;
    background: transparent;
    padding: 0 0 0 14px;
  }
  .gv-masthead {
    padding: 36px 0 24px;
  }
  .gv-masthead__tagline {
    font-size: 15px;
    letter-spacing: 0.08em;
  }
  .gv-catnav ul {
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 22px;
    scrollbar-width: none;
  }
  .gv-catnav ul::-webkit-scrollbar {
    display: none;
  }
  .gv-catnav a {
    white-space: nowrap;
  }
  .gv-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    padding: 22px 0;
  }
  .gv-item__date {
    flex-direction: row;
    gap: 6px;
    align-items: baseline;
    order: 2;
    display: none;
  }
  .gv-item__cover {
    display: none;
  }
  .gv-item__title {
    font-size: 19px;
  }
  .gv-prose {
    font-size: 16.5px;
    line-height: 1.85;
    text-align: left;
  }
  .gv-prose h1 {
    font-size: 23px;
  }
  .gv-prose h2 {
    font-size: 20.5px;
  }
  .gv-prose h3 {
    font-size: 18px;
  }
  .gv-prose table {
    font-size: 13.5px;
  }
  .gv-prose tbody td:first-child {
    white-space: normal;
    min-width: 4em;
  }
  .gv-prevnext {
    grid-template-columns: minmax(0, 1fr);
  }
  .gv-prevnext__item.is-next {
    text-align: left;
  }
  .gv-timeline__month {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }
  .gv-footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .gv-footer__meta {
    text-align: left;
  }
  .gv-top {
    right: 16px;
    bottom: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- 打印：只保留正文，适合导出 PDF ---------- */
@media print {
  :root,
  html[data-theme="dark"] {
    --paper: #fff;
    --surface: #fff;
    --surface-2: #fff;
    --ink: #000;
    --ink-2: #222;
    --muted: #555;
    --rule: #bbb;
    --rule-strong: #000;
    --table-head: #eee;
    --table-stripe: #fff;
  }
  .gv-header,
  .gv-aside,
  .gv-footer,
  .gv-top,
  #gv-progress,
  .gv-prevnext,
  .gv-comments,
  .gv-catnav,
  .gv-article__tags {
    display: none !important;
  }
  .gv-layout {
    display: block;
    padding: 0;
  }
  .gv-article {
    max-width: none;
  }
  .gv-prose {
    font-size: 11pt;
    line-height: 1.75;
  }
  .gv-prose a {
    text-decoration: none;
    color: inherit;
  }
  .gv-prose h2,
  .gv-prose h3 {
    break-after: avoid;
  }
  .gv-prose tr,
  .gv-prose img,
  .gv-prose blockquote {
    break-inside: avoid;
  }
  .gv-table-wrap {
    overflow: visible;
  }
}