:root {
    --paper: #f6f3ee;
    --card: #fffcf8;
    --ink: #1c1916;
    --muted: #6d655c;
    --line: #e6dfd4;
    --cinnabar: #8d2f2c;
    --cinnabar-dark: #6f221f;
    --pine: #243f39;
    --gold: #a07d45;
    --shadow: 0 12px 40px rgba(48, 36, 22, 0.06);
    --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --serif: "Songti SC", "STSong", "SimSun", "Noto Serif SC", serif;
    --kai: "KaiTi", "STKaiti", "Songti SC", serif;
    --wrap: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--ink);
    background:
        radial-gradient(1200px 480px at 10% -10%, rgba(160, 125, 69, 0.08), transparent 60%),
        radial-gradient(900px 420px at 100% 0%, rgba(141, 47, 44, 0.06), transparent 55%),
        var(--paper);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.7;
}
img { max-width: 100%; }
a { color: var(--pine); text-decoration: none; }
a:hover { color: var(--cinnabar); }
button, input, textarea, select { font-family: inherit; }
::selection { background: #eadfce; }

.skip {
    position: absolute;
    left: 12px;
    top: -40px;
    background: var(--ink);
    color: #fff;
    padding: 6px 10px;
    z-index: 20;
}
.skip:focus { top: 8px; color: #fff; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}
.wrap { width: min(var(--wrap), calc(100% - 40px)); margin: 0 auto; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(246, 243, 238, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
}
.header-inner {
    display: flex;
    align-items: center;
    gap: 28px;
    min-height: 76px;
}
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); min-width: max-content; }
.brand:hover { color: var(--ink); }
.seal {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    background: var(--cinnabar);
    color: #f8f3ea;
    font-family: var(--kai);
    font-size: 24px;
    line-height: 1;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 18px; font-weight: 600; letter-spacing: 0.12em; }
.brand-text em { margin-top: 4px; font-style: normal; color: var(--muted); font-size: 12px; letter-spacing: 0.18em; }

.main-nav { display: flex; gap: 8px; }
.main-nav a {
    color: var(--ink);
    padding: 6px 10px;
    letter-spacing: 0.08em;
}
.main-nav a.on { color: var(--cinnabar); }

.top-search { margin-left: auto; display: flex; }
.top-search input,
.hero-search input,
.filters input,
.admin-search input,
.form input[type="text"],
.form input[type="url"],
.form input[type="password"],
.form input[type="number"],
.form textarea,
.form select {
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ink);
    border-radius: 0;
    outline: none;
}
.top-search input { width: 220px; padding: 8px 12px; }
.top-search button,
.hero-search button,
.btn {
    border: 0;
    background: var(--ink);
    color: #f7f4ee;
    padding: 8px 16px;
    letter-spacing: 0.12em;
    cursor: pointer;
}
.top-search button:hover,
.hero-search button:hover,
.btn:hover { background: var(--cinnabar); }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.danger { background: var(--cinnabar); }
.btn.small { padding: 4px 10px; letter-spacing: 0.06em; font-size: 13px; }

.hero { padding: 72px 0 36px; }
.hero h1 {
    margin: 0 0 12px;
    font-weight: 500;
    font-size: clamp(36px, 5vw, 56px);
    letter-spacing: 0.14em;
    line-height: 1.2;
}
.lead { max-width: 640px; color: var(--muted); font-size: 18px; margin: 0 0 28px; }
.hero-search { display: flex; max-width: 640px; }
.hero-search input { flex: 1; padding: 16px 18px; font-size: 16px; border-right: 0; }
.hero-search button { padding: 0 28px; }
.stats { display: flex; gap: 28px; margin-top: 28px; color: var(--muted); letter-spacing: 0.06em; }
.stats strong { display: block; color: var(--ink); font-size: 28px; font-weight: 500; letter-spacing: 0; }

.section { padding: 18px 0 42px; }
.section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}
.section-head h2 {
    margin: 0;
    font-size: 22px;
    font-weight: 500;
    letter-spacing: 0.16em;
}
.section-head a { letter-spacing: 0.08em; font-size: 14px; }

.letters, .lengths { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 18px; }
@media (min-width: 1040px) {
    .letter-index { display: grid; grid-template-columns: repeat(27, minmax(0, 1fr)); gap: 6px; }
    .letter-index a { min-width: 0; padding: 4px 0; }
}
.letters a, .lengths a, .dynasty-nav a {
    min-width: 36px;
    text-align: center;
    padding: 4px 8px;
    border: 1px solid transparent;
    color: var(--muted);
}
.letters a.on, .lengths a.on, .dynasty-nav a.on,
.letters a:hover, .lengths a:hover, .dynasty-nav a:hover {
    border-color: var(--ink);
    color: var(--ink);
}

.card-grid, .poem-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
.poem-grid { grid-template-columns: repeat(3, 1fr); }
.card, .poem-card {
    display: block;
    background: var(--card);
    border: 1px solid var(--line);
    padding: 18px 18px 16px;
    box-shadow: var(--shadow);
    min-height: 148px;
}
.card h3, .poem-card h3 { margin: 0 0 6px; font-size: 22px; font-weight: 500; letter-spacing: 0.08em; }
.card h3 { color: var(--ink); }
.poem-card h3 a { color: var(--ink); }
.py { margin: 0 0 8px; color: var(--gold); letter-spacing: 0.04em; }
.mean, .excerpt { margin: 0; color: var(--muted); }
.excerpt { font-family: var(--kai); font-size: 18px; line-height: 1.8; color: var(--ink); }
.poem-card .meta, .entry-head .meta { color: var(--muted); margin: 0; letter-spacing: 0.08em; }

.panel { padding: 36px 0 64px; }
.panel h1 { margin: 0 0 8px; font-weight: 500; letter-spacing: 0.12em; font-size: 36px; }
.sub { color: var(--muted); margin-top: 0; }
.narrow { width: min(720px, calc(100% - 40px)); margin: 48px auto; }

.detail-wrap { padding: 28px 0 64px; }
.crumbs { color: var(--muted); font-size: 14px; margin-bottom: 18px; }
.crumbs a { color: var(--muted); }
.crumbs .sep { margin: 0 8px; }
.detail { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 28px; align-items: start; }
.entry, .side {
    background: var(--card);
    border: 1px solid var(--line);
    padding: 28px;
}
.entry-head h1 { margin: 0; font-size: clamp(36px, 4vw, 52px); font-weight: 500; letter-spacing: 0.14em; }
.entry-head .py { font-size: 18px; margin-top: 10px; }
.block { margin-top: 26px; }
.block h2, .side h2 {
    margin: 0 0 10px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--cinnabar);
}
.prose { font-size: 17px; line-height: 1.9; }
.poem-body {
    font-family: var(--kai);
    font-size: 26px;
    line-height: 2;
    letter-spacing: 0.06em;
}
.term-row p { margin: 8px 0; }
.term-row a, .term-row span {
    display: inline-block;
    margin: 0 8px 8px 0;
    padding: 2px 8px;
    border: 1px solid var(--line);
    color: var(--ink);
}
.term-row .k { border: 0; padding: 0; margin-right: 8px; color: var(--muted); letter-spacing: 0.12em; }
.neighbors { display: flex; justify-content: space-between; gap: 16px; margin-top: 32px; padding-top: 18px; border-top: 1px solid var(--line); }
.neighbors a { display: flex; flex-direction: column; color: var(--ink); max-width: 46%; }
.neighbors a.next { text-align: right; margin-left: auto; }
.neighbors span { color: var(--muted); font-size: 13px; letter-spacing: 0.12em; }
.side-list { list-style: none; margin: 0; padding: 0; }
.side-list li { padding: 10px 0; border-bottom: 1px solid var(--line); }
.side-list a { display: block; color: var(--ink); letter-spacing: 0.06em; }
.side-list small { display: block; color: var(--muted); }
.text-link { letter-spacing: 0.06em; }
.empty { color: var(--muted); }

.pager { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 28px; }
.pager a, .pager .on, .pager .gap {
    min-width: 36px;
    text-align: center;
    padding: 6px 10px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ink);
}
.pager .on { background: var(--ink); color: #fff; border-color: var(--ink); }
.pager .gap { border: 0; background: transparent; }

.link-list { list-style: none; padding: 0; margin: 24px 0 0; }
.link-list li { padding: 16px 0; border-bottom: 1px solid var(--line); }
.link-list a { font-size: 18px; letter-spacing: 0.06em; color: var(--ink); }
.link-list p { margin: 4px 0 0; color: var(--muted); }

body.page-home .top-search { display: none; }
.home-head { padding: 28px 0 6px; text-align: center; }
.home-head h1 {
    margin: 0 0 10px;
    font-size: 34px;
    font-weight: 500;
    letter-spacing: 0.2em;
}
.home-intro {
    max-width: 720px;
    margin: 0 auto 18px;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.85;
}
.home-search { display: flex; max-width: 640px; margin: 0 auto 22px; }
.home-search input {
    flex: 1;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-right: 0;
    background: #fff;
    color: var(--ink);
}
.home-search button {
    border: 0;
    background: var(--ink);
    color: #f7f4ee;
    padding: 0 26px;
    letter-spacing: 0.14em;
    cursor: pointer;
}
.home-search button:hover { background: var(--cinnabar); }
.home-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 16px;
    align-items: start;
    padding-bottom: 8px;
}
.home-main, .side-card {
    background: var(--card);
    border: 1px solid var(--line);
    padding: 8px 16px 18px;
}
.side-stack { display: flex; flex-direction: column; gap: 12px; }
.side-card { padding: 14px 14px 16px; }
.side-card h2, .block-label {
    margin: 14px 0 10px;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.12em;
    color: var(--cinnabar);
}
.side-card h2 { margin-top: 0; }
.chip-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.chip-grid.chip-5 { grid-template-columns: repeat(5, 1fr); }
.chip-grid a, .char-grid a {
    display: grid;
    place-items: center;
    min-height: 36px;
    padding: 6px 4px;
    background: var(--paper);
    border: 1px solid var(--line);
    color: var(--ink);
    font-size: 14px;
}
.chip-grid a:hover, .char-grid a:hover, .idiom-tile:hover { border-color: var(--cinnabar); color: var(--cinnabar); }
.idiom-tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.idiom-tile {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    min-height: 74px;
    padding: 8px 6px;
    text-align: center;
    background: var(--paper);
    border: 1px solid var(--line);
}
.idiom-tile .py { margin: 0; font-size: 12px; color: var(--muted); letter-spacing: 0; line-height: 1.3; }
.idiom-tile strong { font-size: 16px; font-weight: 500; letter-spacing: 0.04em; color: var(--ink); }
.idiom-tile:hover strong { color: var(--cinnabar); }
.char-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; }
.char-grid a { min-height: 42px; font-size: 16px; }
.poem-head { margin-top: 8px; }
.poem-head .block-label { margin-bottom: 0; }
.poem-lines { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.poem-lines a {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 12px;
    background: var(--paper);
    border: 1px solid var(--line);
    color: var(--ink);
}
.poem-lines strong { font-weight: 500; letter-spacing: 0.04em; }
.poem-lines span { color: var(--muted); font-size: 13px; white-space: nowrap; }
.home-friends {
    margin: 8px 0 36px;
    padding-top: 28px;
    border-top: 1px solid var(--line);
}
.home-friends h2,
.friend-links h2 {
    margin: 0 0 14px;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.2em;
    color: var(--ink);
}
.home-friends ul,
.friend-links ul {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 22px;
    list-style: none;
    margin: 0;
    padding: 0;
}
.home-friends a { color: var(--ink); }
.friend-links a { color: var(--muted); }
.site-footer { border-top: 1px solid var(--line); padding: 36px 0 48px; color: var(--muted); }
.friend-links { margin-bottom: 18px; }
.copyright { margin-bottom: 4px; }
.copyright span { margin-left: 12px; }
.fine { margin: 0; font-size: 13px; }

.result-block { margin-top: 28px; }
.result-block h2 { font-weight: 500; letter-spacing: 0.12em; }

@media (max-width: 980px) {
    .card-grid, .poem-grid, .idiom-tiles { grid-template-columns: repeat(2, 1fr); }
    .detail, .home-layout { grid-template-columns: 1fr; }
    .char-grid { grid-template-columns: repeat(4, 1fr); }
    .poem-lines { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
    .header-inner { flex-wrap: wrap; padding: 12px 0; gap: 12px; }
    .top-search { width: 100%; margin-left: 0; }
    .top-search input { flex: 1; width: auto; }
    .main-nav { width: 100%; }
    .card-grid, .poem-grid { grid-template-columns: 1fr; }
    .hero { padding-top: 36px; }
    .entry, .side { padding: 18px; }
    .poem-body { font-size: 22px; }
}