:root {
  --jv-paper: #f3e9dc;
  --jv-ink: #2e2219;
  --jv-ink-soft: #5a4a3d;
  --jv-indigo: #2c3e8f;
  --jv-indigo-deep: #22306f;
  --jv-sand: #d9a441;
  --jv-sand-soft: #ecd09a;
  --jv-line: #e2d2bd;
  --jv-surf: #fffaf3;
  --jv-r-big: 26px;
  --jv-r-small: 8px;
  --jv-cjk: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
  --jv-latin: "Goudy Old Style", "Garamond", "Georgia", serif;
  --jv-wrap: 1120px;
}

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

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

body {
  margin: 0;
  background: var(--jv-paper);
  color: var(--jv-ink);
  font-family: var(--jv-cjk);
  font-size: 16px;
  line-height: 1.8;
}

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

a { color: var(--jv-indigo); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--jv-indigo-deep); text-decoration-thickness: 2px; }

:focus-visible { outline: 3px solid var(--jv-indigo); outline-offset: 2px; border-radius: 4px; }

.jv-skip {
  position: absolute; left: 12px; top: -60px; z-index: 10;
  background: var(--jv-ink); color: var(--jv-surf);
  padding: 10px 16px; border-radius: var(--jv-r-small);
  min-height: 44px; display: inline-flex; align-items: center;
}
.jv-skip:focus { top: 8px; color: var(--jv-surf); }

/* 页头 */
.jv-top { border-bottom: 1px solid var(--jv-line); background: var(--jv-paper); }
.jv-top-in {
  max-width: var(--jv-wrap); margin: 0 auto; padding: 10px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.jv-brand { display: inline-flex; align-items: center; min-height: 44px; color: var(--jv-ink); text-decoration: none; }
.jv-mark { width: 132px; height: 40px; }
.jv-mark-glass { fill: none; stroke: var(--jv-ink); stroke-width: 2; stroke-linejoin: round; }
.jv-mark-sand { fill: var(--jv-sand); }
.jv-mark-word { font-family: var(--jv-latin); font-size: 30px; fill: var(--jv-indigo); letter-spacing: 0.5px; }
.jv-nav { display: flex; gap: 4px; }
.jv-nav a {
  display: inline-flex; align-items: center; min-height: 44px; min-width: 44px; justify-content: center;
  padding: 0 12px; color: var(--jv-ink); text-decoration: none; border-radius: var(--jv-r-small);
  font-size: 15px;
}
.jv-nav a:hover { background: var(--jv-surf); color: var(--jv-indigo); }
.jv-nav a[aria-current="page"] { color: var(--jv-indigo); box-shadow: inset 0 -2px 0 var(--jv-sand); border-radius: 0; }

.jv-main { display: block; }

.jv-h1 {
  font-size: 42px; line-height: 1.3; margin: 0 0 16px; font-weight: 700; letter-spacing: 0.01em;
  line-break: strict; text-wrap: balance;
}
.jv-h1 small { display: block; font-size: 16px; font-weight: 400; color: var(--jv-ink-soft); margin-top: 6px; }

/* 首屏 */
.jv-hero {
  max-width: var(--jv-wrap); margin: 0 auto; padding: 40px 24px 36px;
  display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  grid-template-areas: "say glass" "say card"; column-gap: 56px; row-gap: 18px; align-items: start;
}
.jv-hero-say { grid-area: say; }
.jv-hero-glass { grid-area: glass; display: flex; gap: 26px; align-items: center; }
.jv-hero-card { grid-area: card; }
.jv-hero-over { margin: 0 0 10px; color: var(--jv-indigo); font-size: 15px; }
.jv-hero-lead { margin: 0 0 22px; font-size: 17px; color: var(--jv-ink-soft); max-width: 34em; }

.jv-pick {
  border-top: 2px solid var(--jv-ink); padding-top: 14px; max-width: 34em;
}
.jv-pick-tag { margin: 0 0 4px; font-size: 14px; color: var(--jv-ink-soft); }
.jv-pick-link {
  display: inline-block; font-size: 21px; font-weight: 700; line-height: 1.45; color: var(--jv-indigo);
  padding: 4px 0; line-break: strict; text-wrap: balance;
}
.jv-pick-why { margin: 8px 0 0; font-size: 15px; }

/* CSS 沙漏：两个三角 + 沙，静止不动 */
.jv-glass, .jv-lost-glass {
  flex: none; width: 118px; height: 196px;
  display: grid; grid-template-rows: 11px 1fr 1fr 11px;
}
.jv-glass-bar { background: var(--jv-ink); border-radius: 8px; margin: 0 -12px; }
.jv-glass-up, .jv-glass-down { position: relative; background: var(--jv-ink); }
.jv-glass-up { clip-path: polygon(0 0, 100% 0, 53% 100%, 47% 100%); }
.jv-glass-down { clip-path: polygon(47% 0, 53% 0, 100% 100%, 0 100%); }
.jv-glass-up::before, .jv-glass-down::before {
  content: ""; position: absolute; inset: 0; background: var(--jv-surf);
}
.jv-glass-up::before { clip-path: polygon(3% 0, 97% 0, 51.5% 97%, 48.5% 97%); }
.jv-glass-down::before { clip-path: polygon(48.5% 3%, 51.5% 3%, 97% 100%, 3% 100%); }
.jv-glass-sandup, .jv-glass-sanddown { position: absolute; inset: 0; }
.jv-glass-sandup {
  background: linear-gradient(180deg, var(--jv-sand-soft), var(--jv-sand));
  clip-path: polygon(28% 58%, 72% 58%, 51% 97%, 49% 97%);
}
.jv-glass-sanddown {
  background: linear-gradient(180deg, var(--jv-sand), #c48f33);
  clip-path: polygon(49.4% 0, 50.6% 0, 50.6% 52%, 90% 100%, 10% 100%, 49.4% 52%);
}

.jv-scale { min-width: 0; }
.jv-scale-cap { margin: 0 0 8px; font-size: 14px; line-height: 1.6; color: var(--jv-ink-soft); }
.jv-scale-dl { margin: 0; border-left: 2px solid var(--jv-ink); padding-left: 0; }
.jv-scale-dl div { display: flex; align-items: baseline; gap: 12px; padding: 4px 0 4px 18px; position: relative; }
.jv-scale-dl div::before {
  content: ""; position: absolute; left: 0; top: 50%; width: 12px; height: 2px; background: var(--jv-ink);
}
.jv-scale-dl dt { font-size: 15px; min-width: 4.2em; }
.jv-scale-dl dt b { font-family: var(--jv-latin); font-size: 30px; color: var(--jv-indigo); font-weight: 400; margin-right: 2px; }
.jv-scale-dl dd { margin: 0; font-size: 15px; }
.jv-scale-foot { margin: 8px 0 0; font-size: 14px; color: var(--jv-indigo); }

/* 码卡 */
.jv-card {
  background: var(--jv-surf); border: 1px solid var(--jv-line); border-radius: var(--jv-r-big);
  padding: 18px 22px 18px;
}
.jv-card-tag { margin: 0 0 6px; font-size: 14px; font-weight: 700; color: var(--jv-ink); }
.jv-card-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.jv-card .jv-card-code {
  font-family: var(--jv-latin); font-size: 30px; letter-spacing: 0.06em; color: var(--jv-ink);
  background: var(--jv-paper); border: 1px dashed var(--jv-sand); border-radius: var(--jv-r-small);
  padding: 2px 14px; line-height: 1.4; user-select: all;
}
.jv-copy {
  font: inherit; font-size: 15px; min-height: 44px; min-width: 76px; padding: 0 18px; cursor: pointer;
  color: var(--jv-indigo); background: transparent; border: 2px solid var(--jv-indigo); border-radius: var(--jv-r-small);
}
.jv-copy:hover { background: var(--jv-indigo); color: var(--jv-surf); }
.jv-copy.jv-copy-done { background: var(--jv-indigo); color: var(--jv-surf); }
.jv-card-note { margin: 10px 0 0; font-size: 14px; line-height: 1.65; color: var(--jv-ink-soft); }
.jv-door {
  display: flex; align-items: center; justify-content: center; text-align: center;
  margin-top: 14px; min-height: 48px; padding: 8px 18px; border-radius: var(--jv-r-small);
  background: var(--jv-indigo); color: var(--jv-surf); text-decoration: none; font-weight: 700;
}
.jv-door:hover { background: var(--jv-indigo-deep); color: var(--jv-surf); }
.jv-card-disc { margin: 8px 0 0; font-size: 13px; line-height: 1.6; color: var(--jv-ink-soft); }

/* 首页下半 */
.jv-home-body {
  max-width: var(--jv-wrap); margin: 0 auto; padding: 8px 24px 56px;
  display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.9fr); gap: 56px;
  border-top: 1px solid var(--jv-line);
}
.jv-home-prose { max-width: 38em; }
.jv-home-prose h2, .jv-home-map h2 {
  font-size: 23px; line-height: 1.45; margin: 36px 0 10px; line-break: strict; text-wrap: balance;
}
.jv-home-prose p { margin: 0 0 14px; }
.jv-home-map { align-self: start; }
.jv-home-maplist { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--jv-line); }
.jv-home-maplist li { border-bottom: 1px solid var(--jv-line); padding: 8px 0; }
.jv-home-maplist a { display: inline-flex; align-items: center; min-height: 44px; font-weight: 700; }
.jv-home-maplist span { display: block; font-size: 14px; color: var(--jv-ink-soft); line-height: 1.6; }

/* 通用：面包屑与署名 */
.jv-crumbs { display: flex; flex-wrap: wrap; align-items: center; font-size: 14px; color: var(--jv-ink-soft); margin-bottom: 6px; }
.jv-crumbs a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 2px; }
.jv-crumbs-sep { margin: 0 8px; color: var(--jv-sand); }
.jv-crumbs-here { display: inline-flex; align-items: center; min-height: 44px; }
.jv-byline { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 14px; color: var(--jv-ink-soft); }

/* 文章页 */
.jv-art { max-width: var(--jv-wrap); margin: 0 auto; padding: 18px 24px 56px; }
.jv-arthead { max-width: 46em; margin-bottom: 22px; }
.jv-cover { margin: 0 0 30px; max-width: 760px; }
.jv-cover img { border-radius: var(--jv-r-big); border: 1px solid var(--jv-line); }
.jv-cover figcaption, .jv-shot figcaption { font-size: 14px; line-height: 1.6; color: var(--jv-ink-soft); margin-top: 8px; }
.jv-artgrid { display: grid; grid-template-columns: 15rem minmax(0, 1fr); gap: 48px; align-items: start; }
.jv-toc {
  position: sticky; top: 16px; background: var(--jv-surf); border: 1px solid var(--jv-line);
  border-radius: var(--jv-r-big); padding: 16px 16px 10px;
}
.jv-toc-h { margin: 0 0 4px; font-weight: 700; font-size: 15px; }
.jv-toc-ol { margin: 0; padding: 0; list-style: none; counter-reset: jvtoc; }
.jv-toc-ol li { counter-increment: jvtoc; border-top: 1px dashed var(--jv-line); }
.jv-toc-ol li:first-child { border-top: 0; }
.jv-toc-ol a {
  display: flex; gap: 8px; min-height: 44px; align-items: center; padding: 6px 0;
  font-size: 14px; line-height: 1.5; color: var(--jv-ink); text-decoration: none;
}
.jv-toc-ol a::before { content: counter(jvtoc); font-family: var(--jv-latin); color: var(--jv-indigo); font-size: 17px; min-width: 1.2em; }
.jv-toc-ol a:hover { color: var(--jv-indigo); }

.jv-prose { max-width: 38em; font-size: 16.5px; }
.jv-prose p, .jv-prose li { margin: 0 0 14px; }
.jv-prose ul, .jv-prose ol { padding-left: 1.4em; margin: 0 0 16px; }
.jv-prose h2 {
  font-size: 26px; line-height: 1.45; margin: 48px 0 14px; padding-top: 14px; border-top: 1px solid var(--jv-line);
  line-break: strict; text-wrap: balance; scroll-margin-top: 16px;
  position: relative; padding-left: 22px;
}
.jv-prose h2::before {
  content: ""; position: absolute; left: 0; top: calc(14px + 0.42em); width: 12px; height: 18px;
  background: linear-gradient(180deg, var(--jv-indigo) 0 50%, var(--jv-sand) 50% 100%);
  clip-path: polygon(0 0, 100% 0, 55% 50%, 100% 100%, 0 100%, 45% 50%);
}
.jv-prose h3 { font-size: 19px; line-height: 1.5; margin: 30px 0 10px; line-break: strict; text-wrap: balance; }
.jv-prose strong { color: var(--jv-ink); }
.jv-prose code { font-family: var(--jv-latin); font-size: 1.02em; background: var(--jv-surf); padding: 0 4px; border-radius: 4px; }

.jv-shot { margin: 18px 0 24px; max-width: 560px; }
.jv-shot img { border: 1px solid var(--jv-line); border-radius: var(--jv-r-small); background: #fff; }
.jv-shot-wide { max-width: 640px; }

.jv-tablewrap { overflow-x: auto; margin: 18px 0 24px; border: 1px solid var(--jv-line); border-radius: var(--jv-r-small); background: var(--jv-surf); }
.jv-table { border-collapse: collapse; width: 100%; min-width: 640px; font-size: 15px; line-height: 1.65; }
.jv-table th, .jv-table td { min-width: 7em; padding: 10px 12px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--jv-line); }
.jv-table thead th { background: var(--jv-paper); font-size: 14px; color: var(--jv-ink-soft); font-weight: 700; }
.jv-table tbody th { font-weight: 700; color: var(--jv-ink); min-width: 7.5em; }
.jv-table tbody tr:last-child th, .jv-table tbody tr:last-child td { border-bottom: 0; }

.jv-fix {
  margin: 22px 0; padding: 14px 18px 4px; background: var(--jv-surf);
  border-left: 4px solid var(--jv-sand); border-radius: 0 var(--jv-r-small) var(--jv-r-small) 0;
}
.jv-fix-tag { font-weight: 700; color: var(--jv-indigo); font-size: 15px; margin: 0 0 6px !important; }

.jv-card-guide { margin: 22px 0 26px; max-width: 30em; }

.jv-faq, .jv-after { max-width: 46em; margin-left: calc(15rem + 48px); }
.jv-faq h2 { font-size: 24px; margin: 52px 0 10px; line-break: strict; text-wrap: balance; }
.jv-qa { border-top: 1px solid var(--jv-line); padding: 6px 0 2px; }
.jv-qa h3 { font-size: 17.5px; margin: 12px 0 6px; line-height: 1.55; }
.jv-qa p { margin: 0 0 12px; }
.jv-after { margin-top: 36px; border-top: 2px solid var(--jv-ink); padding-top: 12px; }
.jv-tags { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: 14px; }
.jv-tags-h { color: var(--jv-ink-soft); }
.jv-tag { border: 1px solid var(--jv-line); border-radius: 999px; padding: 2px 12px; background: var(--jv-surf); }
.jv-next p { margin: 12px 0 0; font-size: 15px; }

/* 站务页 / 搜索 / 列表 */
.jv-desk, .jv-find, .jv-shelf { max-width: var(--jv-wrap); margin: 0 auto; padding: 18px 24px 56px; }
.jv-deskhead, .jv-shelfhead { max-width: 46em; margin-bottom: 18px; }
.jv-h1-desk { font-size: 36px; }
.jv-deskgrid { display: grid; grid-template-columns: minmax(0, 1fr) 15rem; gap: 56px; align-items: start; }
.jv-deskbody { max-width: 38em; }
.jv-deskbody h2 { font-size: 21px; margin: 32px 0 8px; line-height: 1.5; line-break: strict; text-wrap: balance; }
.jv-deskbody p, .jv-deskbody li { margin: 0 0 12px; }
.jv-desknav { border-left: 2px solid var(--jv-line); padding-left: 18px; }
.jv-desknav-h { margin: 0 0 4px; font-size: 14px; color: var(--jv-ink-soft); }
.jv-desknav ul { list-style: none; margin: 0; padding: 0; }
.jv-desknav a, .jv-desknav span { display: flex; align-items: center; min-height: 44px; font-size: 15px; }
.jv-desknav span { color: var(--jv-ink); font-weight: 700; }

.jv-shelf-intro { max-width: 38em; }
.jv-shelf-count { font-size: 14px; color: var(--jv-ink-soft); }
.jv-list { list-style: none; margin: 0; padding: 0; max-width: 46em; border-top: 2px solid var(--jv-ink); }
.jv-row { border-bottom: 1px solid var(--jv-line); padding: 14px 0; }
.jv-row-t { display: inline-flex; min-height: 44px; align-items: center; font-size: 20px; font-weight: 700; line-height: 1.45; line-break: strict; }
.jv-row-d { margin: 4px 0; }
.jv-row-m { margin: 0; font-size: 14px; color: var(--jv-ink-soft); }
.jv-turn { display: flex; gap: 16px; align-items: center; margin-top: 18px; }
.jv-turn a { display: inline-flex; min-height: 44px; align-items: center; }

.jv-find-form { max-width: 38em; }
.jv-find-label { display: block; font-size: 14px; color: var(--jv-ink-soft); margin-bottom: 4px; }
.jv-find-row { display: flex; gap: 10px; }
.jv-find-input {
  flex: 1; min-width: 0; font: inherit; min-height: 48px; padding: 0 14px;
  border: 2px solid var(--jv-ink); border-radius: var(--jv-r-small); background: var(--jv-surf); color: var(--jv-ink);
}
.jv-find-go {
  font: inherit; min-height: 48px; padding: 0 20px; border: 0; border-radius: var(--jv-r-small);
  background: var(--jv-indigo); color: var(--jv-surf); cursor: pointer;
}
.jv-find-state { font-size: 15px; color: var(--jv-ink-soft); }
.jv-find-out { list-style: none; padding: 0; margin: 0; max-width: 38em; }
.jv-find-hit { border-top: 1px solid var(--jv-line); padding: 10px 0; }
.jv-find-hit a { display: inline-flex; min-height: 44px; align-items: center; font-weight: 700; font-size: 18px; }
.jv-find-hit p { margin: 0; font-size: 15px; }

/* 404 */
.jv-lost { max-width: 820px; margin: 0 auto; padding: 56px 24px 72px; display: flex; gap: 48px; align-items: center; }
.jv-lost-glass .jv-glass-up { background: var(--jv-ink); }
.jv-lost-say p { margin: 0 0 10px; }
.jv-lost-ways { margin: 0; padding-left: 1.2em; }
.jv-lost-ways a { display: inline-flex; min-height: 44px; align-items: center; }

/* 页脚 */
.jv-foot { background: #eadcc9; border-top: 1px solid var(--jv-line); font-size: 14px; }
.jv-foot-in { max-width: var(--jv-wrap); margin: 0 auto; padding: 26px 24px 30px; }
.jv-foot-head { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 22px; }
.jv-mark-foot { width: 110px; height: 34px; }
.jv-foot-own, .jv-foot-ad { margin: 6px 0; line-height: 1.7; }
.jv-foot-ad a { display: inline-flex; min-height: 44px; align-items: center; }
.jv-foot-desk { list-style: none; margin: 8px 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0 4px; }
.jv-foot-desk a { display: inline-flex; min-height: 44px; min-width: 44px; align-items: center; padding: 0 10px 0 0; color: var(--jv-ink); }
.jv-foot-end { display: flex; flex-wrap: wrap; gap: 4px 22px; align-items: center; border-top: 1px solid var(--jv-line); padding-top: 8px; }
.jv-foot-rss { display: inline-flex; min-height: 44px; align-items: center; }
.jv-foot-yr { color: var(--jv-ink-soft); font-family: var(--jv-latin); font-size: 15px; }

/* 标题按标点分段，手机上不在词中间断开 */
.jv-hseg { display: inline-block; }
.jv-prose h3.jv-step { display: flex; gap: 12px; align-items: baseline; }
.jv-stepno {
  flex: none; font-family: var(--jv-latin); font-size: 26px; line-height: 1; color: var(--jv-indigo);
  min-width: 1.1em; border-bottom: 3px solid var(--jv-sand); padding-bottom: 2px;
}

/* 中等宽度 */
@media (max-width: 1023px) {
  .jv-artgrid { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .jv-toc { position: static; margin-bottom: 18px; max-width: 38em; }
  .jv-faq, .jv-after { margin-left: 0; }
  .jv-home-body { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .jv-deskgrid { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .jv-desknav { border-left: 0; border-top: 2px solid var(--jv-line); padding: 10px 0 0; }
}

@media (max-width: 760px) {
  .jv-hero {
    grid-template-columns: minmax(0, 1fr); grid-template-areas: "say" "card" "glass";
    padding: 16px 16px 26px; row-gap: 16px;
  }
  .jv-hero-over { font-size: 14px; margin-bottom: 4px; }
  .jv-hero-lead { font-size: 15px; margin-bottom: 12px; line-height: 1.7; }
  .jv-pick { padding-top: 10px; }
  .jv-pick-link { font-size: 18px; }
  .jv-pick-why { font-size: 15px; line-height: 1.7; }
  .jv-card { padding: 14px 16px; border-radius: 20px; }
  .jv-card .jv-card-code { font-size: 25px; }
  .jv-glass { width: 92px; height: 152px; }
  .jv-hero-glass { gap: 20px; padding-left: 12px; }
}

@media (max-width: 560px) {
  body { font-size: 15.5px; }
  .jv-top-in { padding: 6px 16px; gap: 6px; }
  .jv-mark-top { width: 92px; height: 28px; }
  .jv-nav { gap: 0; }
  .jv-nav a { padding: 0 7px; font-size: 15px; }
  .jv-h1 { font-size: 27px; margin-bottom: 10px; }
  .jv-h1-desk { font-size: 27px; }
  .jv-art, .jv-desk, .jv-find, .jv-shelf { padding: 10px 16px 44px; }
  .jv-home-body { padding: 4px 16px 44px; }
  .jv-prose { font-size: 16px; }
  .jv-prose h2 { font-size: 21px; margin-top: 38px; }
  .jv-prose h3 { font-size: 17.5px; }
  .jv-faq h2, .jv-home-prose h2, .jv-home-map h2 { font-size: 20px; }
  .jv-cover img { border-radius: 16px; }
  .jv-lost { flex-direction: column; align-items: flex-start; gap: 20px; padding: 32px 16px 56px; }
  .jv-foot-in { padding: 22px 16px 26px; }
}

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

.jv-pick-link .jv-hseg, .jv-row-t .jv-hseg { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }