:root {
    --bili-pink: #fb7299;
    --bili-blue: #00aeec;
    --bili-bg: #f4f5f7;
    --bili-card: #ffffff;
    --bili-line: #e5e9ef;
    --bili-text: #18191c;
    --bili-muted: #9499a0;
    --bili-radius: 8px;
    --bili-shadow: 0 2px 8px rgba(0, 0, 0, .06);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    background: var(--bili-bg);
    color: var(--bili-text);
    line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1180px, 92vw); margin: 0 auto; }

.bili-header { background: #fff; position: sticky; top: 0; z-index: 50; box-shadow: 0 1px 2px rgba(0,0,0,.06); }
.bili-header-inner { display: flex; align-items: center; min-height: 64px; gap: 24px; }
.bili-logo { display: inline-flex; align-items: center; gap: 9px; font-size: 21px; font-weight: 900; color: var(--bili-pink); }
.bili-logo-mark { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; background: var(--bili-pink); color: #fff; border-radius: 8px; font-size: 20px; }
.bili-menu { display: flex; align-items: center; gap: 4px; flex: 1; }
.bili-menu a { padding: 8px 13px; border-radius: 6px; color: #3a3c42; font-weight: 700; font-size: 15px; }
.bili-menu a:hover { color: var(--bili-pink); background: #fff1f5; }
.bili-search { display: flex; align-items: center; background: #f1f2f3; border: 1px solid transparent; border-radius: 8px; overflow: hidden; }
.bili-search input { border: 0; outline: 0; padding: 8px 12px; width: 165px; background: transparent; }
.bili-search button { border: 0; background: var(--bili-pink); color: #fff; padding: 8px 14px; cursor: pointer; font-weight: 700; }
.bili-nav-toggle { display: none; border: 0; background: var(--bili-pink); color: #fff; border-radius: 8px; padding: 8px 11px; font-size: 18px; cursor: pointer; }

.bili-main { min-height: 65vh; }
.bili-hero { padding: 16px 0 6px; }
.carousel { position: relative; overflow: hidden; border-radius: var(--bili-radius); box-shadow: var(--bili-shadow); background: #e0e0e0; }
.slides { display: flex; transition: transform .45s ease; }
.slide { position: relative; flex: 0 0 100%; height: 360px; display: block; }
.slide img { width: 100%; height: 100%; object-fit: cover; }
.slide-caption { position: absolute; left: 28px; bottom: 25px; background: rgba(0,0,0,.45); color: #fff; padding: 8px 13px; border-radius: 6px; font-size: 20px; font-weight: 800; border-left: 4px solid var(--bili-pink); }
.carousel-btn { position: absolute; top: 50%; transform: translateY(-50%); z-index: 3; width: 40px; height: 40px; border: 0; border-radius: 50%; background: rgba(255,255,255,.86); color: #111; font-size: 24px; cursor: pointer; line-height: 1; }
.carousel-btn.prev { left: 15px; }
.carousel-btn.next { right: 15px; }
.carousel-dots { position: absolute; right: 20px; bottom: 16px; display: flex; gap: 6px; }
.carousel-dots .dot { width: 9px; height: 9px; border: 0; border-radius: 50%; background: rgba(255,255,255,.55); cursor: pointer; padding: 0; }
.carousel-dots .dot.active { background: var(--bili-pink); width: 22px; border-radius: 999px; }

.bili-category { display: flex; gap: 14px; flex-wrap: wrap; padding: 16px 0 4px; }
.bili-category a { color: #4b4d54; font-weight: 700; display: inline-flex; align-items: center; gap: 5px; }
.bili-category a span { color: var(--bili-pink); }
.bili-category a:hover { color: var(--bili-pink); }

.bili-section { padding: 24px 0 42px; }
.bili-section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.bili-section-head h2 { margin: 0; font-size: 23px; }
.bili-section-head a { color: var(--bili-pink); font-size: 14px; font-weight: 700; }
.bili-video-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.bili-video-card { background: var(--bili-card); border-radius: var(--bili-radius); overflow: hidden; box-shadow: var(--bili-shadow); transition: transform .2s; }
.bili-video-card:hover { transform: translateY(-3px); }
.bili-cover { aspect-ratio: 16/10; overflow: hidden; background: #e6e8eb; }
.bili-cover img { width: 100%; height: 100%; object-fit: cover; }
.bili-cover-mark { display: flex; align-items: center; justify-content: center; color: #fff; background: linear-gradient(135deg, var(--bili-pink), var(--bili-blue)); font-size: 30px; font-weight: 900; }
.bili-card-body { padding: 11px 13px; }
.bili-card-body h3 { margin: 0 0 6px; font-size: 15px; line-height: 1.45; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.bili-card-body p { color: var(--bili-muted); margin: 0 0 8px; font-size: 13px; }
.bili-card-foot { display: flex; justify-content: space-between; color: var(--bili-muted); font-size: 12px; }

.bili-page-title { background: linear-gradient(135deg, #fff, #fff1f5); padding: 32px 0; border-bottom: 1px solid var(--bili-line); }
.bili-page-title h1 { margin: 0 0 5px; font-size: 28px; }
.bili-page-title p { margin: 0; color: var(--bili-muted); }
.bili-page-layout { display: grid; grid-template-columns: 1fr 270px; gap: 20px; padding: 24px 0 42px; }
.bili-page-main { min-width: 0; }
.bili-page-side { position: sticky; top: 84px; align-self: start; }
.bili-side-card { background: #fff; border-radius: var(--bili-radius); padding: 16px; box-shadow: var(--bili-shadow); }
.bili-side-card h3 { margin: 0 0 12px; font-size: 17px; }
.bili-side-nav { display: flex; flex-direction: column; gap: 2px; }
.bili-side-nav a { padding: 9px 10px; border-radius: 6px; color: #3a3c42; font-weight: 700; }
.bili-side-nav a:hover { background: #fff1f5; color: var(--bili-pink); }

.bili-article { background: #fff; border-radius: var(--bili-radius); padding: 28px 34px 34px; margin: 24px auto 42px; box-shadow: var(--bili-shadow); }
.bili-article-head { border-bottom: 1px solid var(--bili-line); padding-bottom: 16px; margin-bottom: 22px; }
.bili-article-head h1 { margin: 0 0 12px; font-size: 30px; line-height: 1.4; }
.bili-meta { display: flex; flex-wrap: wrap; gap: 15px; color: var(--bili-muted); font-size: 13px; }
.bili-article-content { font-size: 16px; line-height: 1.9; }
.bili-article-content h2, .bili-article-content h3 { margin-top: 1.4em; }
.bili-article-content img { max-width: 100%; height: auto; border-radius: 8px; margin: 12px 0; }
.bili-article-content p { margin: 0 0 16px; }
.bili-article-pager { display: flex; justify-content: space-between; gap: 16px; margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--bili-line); font-size: 14px; }
.bili-article-pager a { color: var(--bili-pink); font-weight: 700; }
.bili-related { margin-top: 24px; }
.bili-related h2 { font-size: 21px; }
.bili-empty { padding: 42px 0; text-align: center; color: var(--bili-muted); }
.pager { display: flex; justify-content: center; gap: 8px; margin-top: 20px; flex-wrap: wrap; }
.pager a, .pager span { min-width: 35px; height: 35px; display: inline-flex; align-items: center; justify-content: center; padding: 0 10px; border: 1px solid var(--bili-line); border-radius: 6px; background: #fff; color: #3a3c42; font-weight: 700; }
.pager a:hover { border-color: var(--bili-pink); color: var(--bili-pink); }
.pager .current { background: var(--bili-pink); border-color: var(--bili-pink); color: #fff; }

.bili-footer { background: #fff; border-top: 1px solid var(--bili-line); padding: 26px 0; text-align: center; color: var(--bili-muted); margin-top: 20px; }
.bili-footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; margin-bottom: 12px; }
.bili-footer-links a { color: #4b4d54; }
.bili-footer-links a:hover { color: var(--bili-pink); }
.bili-footer p { margin: 0; font-size: 13px; }
.stat-code { text-align: center; margin-top: 6px; }

@media (max-width: 960px) {
    .bili-video-grid { grid-template-columns: repeat(2, 1fr); }
    .bili-page-layout { grid-template-columns: 1fr; }
    .bili-page-side { position: static; }
    .slide { height: 260px; }
}

@media (max-width: 640px) {
    .bili-header-inner { flex-wrap: wrap; gap: 10px; padding: 12px 0; }
    .bili-nav-toggle { display: inline-flex; }
    .bili-menu { display: none; order: 3; flex-basis: 100%; flex-direction: column; align-items: stretch; background: #fff; border-top: 1px solid var(--bili-line); padding: 8px 0; }
    .bili-menu.open { display: flex; }
    .bili-search { order: 2; flex: 1; }
    .bili-search input { width: 100%; }
    .slide { height: 190px; }
    .slide-caption { left: 14px; bottom: 14px; font-size: 16px; }
    .bili-video-grid { grid-template-columns: 1fr; }
    .bili-article { padding: 20px 18px; }
    .bili-article-head h1 { font-size: 25px; }
}