/* 榜单总览（toplist）和榜单详情（rank）共用，2026-10 改版 */
.rk-page {
    --rk-ink: #1F1D3A;
    --rk-sub: #6B6880;
    --rk-mute: #75728C;
    --rk-body: #4A475C;
    --rk-brand: #5B57E8;
    --rk-brand-ink: #4B47D6;
    --rk-brand-soft: #EEEDFD;
    --rk-line: #ECEAF5;
    --rk-gold: #9A6514;
    --rk-silver: #5F6878;
    --rk-bronze: #9A4F24;
    width: 1200px;
    margin: 0 auto;
    padding: 0 0 64px;
    color: var(--rk-ink);
    font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
    text-align: left;
}
.rk-page *, .rk-page *::before, .rk-page *::after { box-sizing: border-box; }
.rk-page a { color: inherit; text-decoration: none; }
.rk-page button { font-family: inherit; cursor: pointer; }
.rk-serif { font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif; }
.rk-ellipsis { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rk-clamp2, .rk-clamp3 { overflow: hidden; display: -webkit-box; -webkit-box-orient: vertical; }
.rk-clamp2 { -webkit-line-clamp: 2; }
.rk-clamp3 { -webkit-line-clamp: 3; }
.rk-link { color: var(--rk-brand-ink) !important; font-size: 13px; }
.rk-link:hover { color: #2F2BB0 !important; }
.rk-item:hover .rk-title { color: var(--rk-brand-ink); }

/* 小标签 */
.rk-chip { display: inline-block; font-size: 12px; line-height: 18px; color: var(--rk-brand-ink); background: var(--rk-brand-soft); border-radius: 10px; padding: 1px 9px; white-space: nowrap; }
.rk-tag { display: inline-block; font-size: 12px; line-height: 18px; border-radius: 4px; padding: 0 6px; white-space: nowrap; border: 1px solid #E6E4EF; color: var(--rk-body); background: #FFFFFF; }
.rk-tag-sort { color: var(--rk-brand-ink); border-color: #DCDAF6; }
.rk-tag-full { color: #1F6E46; background: #E6F4EC; border-color: #E6F4EC; }
.rk-tag-serial { color: var(--rk-brand-ink); background: var(--rk-brand-soft); border-color: var(--rk-brand-soft); }
.rk-fill { flex: none; font-size: 11px; line-height: 16px; color: var(--rk-body); background: #F2F1F7; border-radius: 4px; padding: 0 5px; }

/* 封面：图片加载失败时隐藏图片，露出下面的书名占位 */
.rk-cover { position: relative; flex: none; display: block; border-radius: 6px; background: #E9E7F8; }
.rk-cover img { position: absolute; left: 0; top: 0; width: 100%; height: 100%; object-fit: cover; border-radius: inherit; display: block; }
.rk-cover-ph { position: absolute; left: 0; top: 0; width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; text-align: center; padding: 8px; color: var(--rk-brand-ink); font-weight: 700; line-height: 1.4; overflow: hidden; word-break: break-all; }
.rk-cover-shadow { box-shadow: 0 6px 14px rgba(55, 48, 140, 0.18); }
.rk-badge { position: absolute; left: -6px; top: -6px; width: 26px; height: 26px; border-radius: 13px; color: #FFFFFF; font-weight: 900; font-size: 14px; display: flex; align-items: center; justify-content: center; border: 2px solid #FFFFFF; z-index: 1; }
.rk-badge-sm { left: 4px; top: 4px; width: auto; min-width: 20px; height: 20px; padding: 0 5px; border: 0; font-size: 12px; }
.rk-c1 { color: var(--rk-gold); } .rk-bg1 { background: var(--rk-gold); }
.rk-c2 { color: var(--rk-silver); } .rk-bg2 { background: var(--rk-silver); }
.rk-c3 { color: var(--rk-bronze); } .rk-bg3 { background: var(--rk-bronze); }
.rk-cn { color: var(--rk-mute); }

/* ===== 总览页 ===== */
.rk-head { padding: 34px 0 24px; display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; }
.rk-head h1 { margin: 0; font-size: 36px; font-weight: 900; letter-spacing: 2px; line-height: 1.2; }
.rk-head p { margin: 10px 0 0; font-size: 14px; color: var(--rk-sub); }
.rk-alllist { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; max-width: 900px; }
.rk-alllist a { font-size: 13px; color: #3A3850 !important; background: #FFFFFF; border: 1px solid #E3E1F2; border-radius: 16px; padding: 6px 12px; }
.rk-alllist a:hover { color: var(--rk-brand-ink) !important; border-color: #C9C6F4; }

.rk-card { background: #FFFFFF; border: 1px solid var(--rk-line); border-radius: 14px; }
.rk-card-head { display: flex; align-items: center; gap: 10px; }
.rk-card-head h2 { margin: 0; font-weight: 700; }
.rk-card-head .rk-grow { flex: 1; }
.rk-card-desc { margin: 6px 0 16px; font-size: 12px; color: var(--rk-sub); }

.rk-featured { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.rk-featured .rk-card { padding: 22px 22px 12px; }
.rk-featured .rk-card-head h2 { font-size: 22px; }
.rk-first { display: flex; gap: 16px; background: #F7F6FE; border-radius: 12px; padding: 14px; }
.rk-first .rk-cover { width: 92px; height: 124px; }
.rk-first-info { min-width: 0; display: flex; flex-direction: column; gap: 6px; }
.rk-first-info .rk-title { font-size: 17px; font-weight: 700; line-height: 1.4; }
.rk-first-info .rk-author { font-size: 13px; color: var(--rk-sub); }
.rk-first-info .rk-intro { font-size: 13px; color: var(--rk-body); line-height: 1.6; }
.rk-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.rk-row2 { display: flex; align-items: center; gap: 12px; height: 72px; border-bottom: 1px solid #F0EFF6; }
.rk-row2 .rk-num { width: 26px; text-align: center; font-weight: 900; font-size: 24px; flex: none; }
.rk-row2 .rk-cover { width: 42px; height: 56px; border-radius: 4px; }
.rk-row2 .rk-cover-ph { font-size: 12px; padding: 2px; }
.rk-row2 .rk-title { font-size: 15px; font-weight: 700; }
.rk-row2 .rk-meta { font-size: 12px; color: var(--rk-sub); margin-top: 4px; }
.rk-row { display: flex; align-items: center; gap: 12px; height: 40px; border-bottom: 1px solid #F4F3F8; }
.rk-row:last-child { border-bottom: 0; }
.rk-row .rk-num { width: 26px; text-align: center; font-weight: 700; font-size: 16px; color: var(--rk-mute); flex: none; }
.rk-row .rk-title { flex: 1; min-width: 0; font-size: 14px; }
.rk-row .rk-side { flex: none; font-size: 12px; color: var(--rk-mute); }

.rk-secondary { margin-top: 24px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.rk-secondary .rk-card { padding: 20px 18px 10px; }
.rk-secondary .rk-card-head { gap: 8px; }
.rk-secondary .rk-card-head h2 { font-size: 19px; }
.rk-secondary .rk-card-desc { margin-bottom: 14px; }
.rk-trio { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.rk-trio-item { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.rk-trio-item .rk-cover { width: 100%; height: auto; aspect-ratio: 3 / 4; border-radius: 5px; }
.rk-trio-item .rk-cover-ph { font-size: 13px; }
.rk-trio-item .rk-title { font-size: 13px; line-height: 1.4; height: 36px; }
.rk-trio-item .rk-fill { position: absolute; right: 4px; bottom: 4px; background: #FFFFFF; }
.rk-secondary .rk-list { margin-top: 8px; }
.rk-secondary .rk-row { height: 36px; gap: 10px; border-bottom: 0; border-top: 1px solid #F4F3F8; }
.rk-secondary .rk-row .rk-num { width: 20px; font-size: 15px; }
.rk-secondary .rk-row .rk-title { font-size: 13px; }

/* ===== 详情页 ===== */
.rk-detail { padding-top: 24px; display: flex; gap: 24px; align-items: flex-start; }
.rk-side-nav { flex: none; width: 200px; background: #FFFFFF; border: 1px solid var(--rk-line); border-radius: 14px; padding: 10px; display: flex; flex-direction: column; gap: 2px; position: sticky; top: 16px; }
.rk-side-nav a { display: flex; align-items: center; justify-content: space-between; padding: 11px 12px; border-radius: 10px; color: #3A3850; font-size: 15px; }
.rk-side-nav a span { font-size: 12px; color: var(--rk-mute); }
.rk-side-nav a:hover { background: #F5F4FC; }
.rk-side-nav a.rk-on { background: var(--rk-brand); color: #FFFFFF; font-weight: 700; }
.rk-side-nav a.rk-on span { color: #FFFFFF; font-weight: 400; }
.rk-side-nav a.rk-back { font-size: 13px; color: var(--rk-sub); padding: 8px 12px; }
.rk-main { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 20px; }
.rk-main-head { padding: 24px 28px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.rk-main-head h1 { margin: 0; font-size: 32px; font-weight: 900; line-height: 1.2; }
.rk-main-head p { margin: 8px 0 0; font-size: 14px; color: var(--rk-sub); }
.rk-title-line { display: flex; align-items: baseline; gap: 12px; }
.rk-seg { display: flex; background: #F2F1F9; border-radius: 10px; padding: 4px; flex: none; }
.rk-seg a { font-size: 14px; color: var(--rk-body); padding: 8px 20px; border-radius: 8px; }
.rk-seg a:hover { color: var(--rk-brand-ink); }
.rk-seg a.rk-on { background: #FFFFFF; color: var(--rk-brand-ink); font-weight: 700; box-shadow: 0 1px 3px rgba(31, 29, 58, 0.12); }

.rk-podium { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.rk-podium-card { position: relative; padding: 24px 22px 22px; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 10px; }
.rk-podium-card.rk-gold { background: #FFFBF2; border-color: #EBD7AE; }
.rk-podium-num { position: absolute; left: 18px; top: 14px; font-weight: 900; font-size: 44px; line-height: 1; }
.rk-podium-card .rk-cover { width: 128px; height: 172px; border-radius: 8px; box-shadow: 0 10px 22px rgba(55, 48, 140, 0.22); }
.rk-podium-card .rk-cover-ph { font-size: 18px; }
.rk-podium-card .rk-title { margin-top: 6px; font-size: 18px; font-weight: 700; line-height: 1.4; max-width: 100%; }
.rk-podium-card .rk-author { font-size: 13px; color: var(--rk-sub); }
.rk-podium-card .rk-tags { justify-content: center; }
.rk-podium-card .rk-intro { margin: 2px 0 0; font-size: 13px; color: var(--rk-body); line-height: 1.65; text-align: left; height: 64px; width: 100%; }
.rk-btns { display: flex; gap: 10px; margin-top: 6px; width: 100%; }
.rk-btn { flex: 1; height: 40px; border-radius: 20px; display: flex; align-items: center; justify-content: center; font-size: 14px; }
.rk-btn-primary { background: var(--rk-brand); color: #FFFFFF !important; border: 0; }
.rk-btn-primary:hover { background: #4B47D6; }
.rk-btn-ghost, .rk-page a.rk-btn-ghost { background: #FFFFFF; color: var(--rk-brand-ink); border: 1px solid #C9C6F4; }
.rk-btn-ghost:hover { border-color: var(--rk-brand); }
.rk-btn-ghost.rk-collected { color: var(--rk-mute); border-color: #E3E1F2; }

.rk-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.rk-grid-card { padding: 16px 18px; display: flex; gap: 14px; align-items: flex-start; }
.rk-grid-card .rk-num { flex: none; width: 34px; padding-top: 4px; text-align: center; font-weight: 900; font-size: 26px; color: var(--rk-mute); }
.rk-grid-card .rk-cover { width: 76px; height: 102px; box-shadow: 0 4px 10px rgba(55, 48, 140, 0.14); }
.rk-grid-card .rk-cover-ph { font-size: 14px; }
.rk-grid-info { min-width: 0; flex: 1; display: flex; flex-direction: column; gap: 6px; }
.rk-grid-top { display: flex; align-items: flex-start; gap: 10px; }
.rk-grid-top .rk-title { flex: 1; min-width: 0; font-size: 16px; font-weight: 700; line-height: 28px; }
.rk-grid-info .rk-meta { font-size: 12px; color: var(--rk-sub); }
.rk-grid-info .rk-intro { margin: 0; font-size: 13px; color: var(--rk-body); line-height: 1.6; }
.rk-btn-sm { flex: none; height: 28px; padding: 0 12px; border-radius: 14px; font-size: 12px; background: #FFFFFF; color: var(--rk-brand-ink); border: 1px solid #C9C6F4; }
.rk-btn-sm.rk-collected { color: var(--rk-mute); border-color: #E3E1F2; }
.rk-more { align-self: center; background: #FFFFFF; color: var(--rk-brand-ink); border: 1px solid #C9C6F4; border-radius: 22px; height: 44px; padding: 0 32px; font-size: 14px; }
.rk-more:hover { border-color: var(--rk-brand); }
.rk-hidden { display: none !important; }

.rk-empty { padding: 56px 32px; display: flex; flex-direction: column; align-items: center; gap: 14px; text-align: center; }
.rk-empty-title { font-size: 20px; font-weight: 700; }
.rk-empty-sub { font-size: 14px; color: var(--rk-sub); }
.rk-empty .rk-btns { width: auto; margin-top: 8px; }
.rk-empty .rk-btn { flex: none; padding: 0 22px; }