/* ==========================================================================
   NavPress · 主样式
   设计令牌 → 布局骨架 → 组件 → 页面 → 响应式
   ========================================================================== */

/* ---------- 设计令牌 ---------- */
:root{
  --bg:#f8f9fb; --surface:#ffffff; --surface-2:#f5f6f8;
  --text:#1f2329; --muted:#5c6470; --faint:#6b7280;
  --line:#eef0f3; --border:#e6e9ee; --border-strong:#d5dae1;
  --primary:#2f7cf6; --primary-hover:#1f6fe5; --primary-soft:#eaf1fe;
  --primary-line:#b9d1fb; /* color-mix 回退 */
  --primary-line:color-mix(in srgb,var(--primary) 42%,var(--border));
  --success:#22c55e; --warn:#ff6a3c;
  /* 强调色 6 色相：统一饱和/明度档，白字用深一档（受控多彩） */
  --a-blue:#2f7cf6; --a-teal:#0d9488; --a-violet:#7c3aed;
  --a-amber:#d97706; --a-rose:#e11d48; --a-green:#16a34a;
  --r-xs:6px; --r-sm:8px; --r-md:12px; --r-lg:16px; --r-pill:999px;
  --radius:var(--r-md); --radius-sm:var(--r-sm);
  --e1:0 1px 2px rgba(16,24,40,.05),0 2px 6px -3px rgba(16,24,40,.06);
  --e2:0 3px 10px -4px rgba(16,24,40,.12),0 1px 3px rgba(16,24,40,.05);
  --e3:0 10px 24px -10px rgba(16,24,40,.18),0 4px 10px -4px rgba(16,24,40,.09);
  --shadow:var(--e1); --shadow-lg:var(--e3);
  --sidebar-w:266px; --topbar-h:56px;
  --display:"Inter","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --sans:"Inter","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,monospace;
}
[data-theme="dark"]{
  --bg:#0f1115; --surface:#171a20; --surface-2:#1e2229;
  --text:#e6e8eb; --muted:#9aa3ad; --faint:#8b95a1;
  --line:#22262d; --border:#2b313a; --border-strong:#3a424d;
  --primary:#4d94ff; --primary-hover:#6aa6ff; --primary-soft:#16233a;
  --primary-line:#33507d; /* color-mix 回退 */
  --primary-line:color-mix(in srgb,var(--primary) 42%,var(--border));
  --success:#34d399; --warn:#ff7a52;
  --e1:0 1px 2px rgba(0,0,0,.45),0 2px 6px -3px rgba(0,0,0,.5);
  --e2:0 3px 10px -4px rgba(0,0,0,.6),0 1px 3px rgba(0,0,0,.45);
  --e3:0 10px 24px -10px rgba(0,0,0,.7),0 4px 10px -4px rgba(0,0,0,.55);
}

/* ---------- 基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--sans);font-size:15px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{font-family:var(--display);line-height:1.25;margin:0;font-weight:700}
p{margin:0}
a{color:inherit;text-decoration:none;transition:color .15s}
img{max-width:100%;height:auto;display:block}
button{font:inherit;cursor:pointer}
.ic{display:block}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.container{max-width:1120px;margin:0 auto;padding:0 28px}

/* ---------- 布局骨架 ---------- */
.app{display:grid;grid-template-columns:var(--sidebar-w) minmax(0,1fr);min-height:100vh}
.nav-sb-right .app{grid-template-columns:minmax(0,1fr) var(--sidebar-w)}
.nav-sb-right .sidebar{order:2;border-right:0;border-left:1px solid var(--border)}
.nav-sb-right .sidebar::before{right:auto;left:-1px}
.main{min-width:0;display:flex;flex-direction:column}

/* ---------- 侧栏 ---------- */
.sidebar{
  position:sticky;top:0;height:100vh;display:flex;flex-direction:column;
  background:var(--surface);border-right:1px solid var(--border);z-index:30;
}
/* 顶栏那一段不画分隔线：用侧栏底色盖住边框顶部，使其与内容区无缝相接。
   用真实 border（非 1px 伪元素）保证在 125%/150% 缩放下仍是清晰的 1 物理像素细线。 */
.sidebar::before{content:"";position:absolute;top:0;right:-1px;width:1px;height:var(--topbar-h);background:var(--surface);pointer-events:none}
.sb-top{padding:20px 18px 14px;flex-shrink:0}
.sb-brand{display:flex;align-items:center;gap:11px;padding:2px;border-radius:var(--radius-sm)}
.sb-brand .seal{
  width:36px;height:36px;border-radius:var(--r-sm);background:var(--primary);color:#fff;
  display:grid;place-items:center;font-size:19px;font-weight:800;flex-shrink:0;
  box-shadow:0 6px 14px -6px var(--primary);
}
.sb-brand .brand-logo{
  width:36px;height:36px;border-radius:var(--r-sm);flex-shrink:0;display:block;
  box-shadow:0 6px 14px -8px var(--primary);
}
/* 品牌文字：两行紧凑排布，整体高度对齐 36px Logo，避免行框把两行撑开 */
.sb-brand > div{display:flex;flex-direction:column;justify-content:center;gap:2px;min-width:0}
.sb-brand b{font-weight:800;font-size:19px;letter-spacing:-.02em;line-height:1.15;display:block}
.sb-brand span{font-size:11px;color:var(--faint);letter-spacing:.02em;line-height:1.2;display:block}
.sb-search{
  display:flex;align-items:center;gap:8px;border:1px solid var(--border);background:var(--surface-2);
  border-radius:var(--radius-sm);padding:9px 12px;color:var(--faint);font-size:13px;margin-top:16px;
}
.sb-search input{flex:1;border:0;background:transparent;color:var(--text);font-size:13px;outline:0;min-width:0}
.sb-search:focus-within{border-color:var(--primary);background:var(--surface)}
.sb-nav{flex:1;min-height:0;overflow-y:auto;padding:6px 12px 12px;scrollbar-gutter:stable;display:flex;flex-direction:column;gap:16px}
.sb-nav::-webkit-scrollbar{width:8px}
.sb-nav::-webkit-scrollbar-thumb{background:transparent;border-radius:var(--r-pill);border:2px solid transparent;background-clip:padding-box}
.sidebar:hover .sb-nav::-webkit-scrollbar-thumb{background:var(--border-strong);background-clip:padding-box}
.sb-group{display:flex;flex-direction:column;gap:1px}
.sb-item{
  display:flex;align-items:center;gap:11px;padding:9px 30px 9px 11px;border-radius:var(--r-sm);
  font-size:13.5px;font-weight:500;color:var(--muted);position:relative;transition:.15s;
}
.sb-item:hover{background:var(--surface-2);color:var(--text)}
.sb-item.is-active{background:var(--primary-soft);color:var(--primary)}
.sb-item.is-active::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:var(--r-pill);background:var(--primary)}
.sb-item .cnt{margin-left:auto;font-size:11px;font-family:var(--mono);color:var(--faint)}

/* 行内图标 / 文本 */
.sb-ic{width:16px;height:16px;flex-shrink:0;display:grid;place-items:center}
.sb-ic .ic{width:16px;height:16px}
.sb-txt{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 展开箭头 + 二级分类 */
.sb-row{position:relative}
.sb-row .chev{position:absolute;right:6px;top:50%;width:24px;height:24px;padding:6px;display:grid;place-items:center;color:var(--faint);background:transparent;border:0;border-radius:var(--r-xs);transform:translateY(-50%);transition:transform .2s,color .15s,background .15s;cursor:pointer}
.sb-row .chev svg{width:12px;height:12px}
.sb-row .chev:hover{color:var(--muted);background:var(--surface-2)}
.sb-row .chev:focus-visible{outline:2px solid var(--primary);outline-offset:1px}
.sb-row.open .chev{transform:translateY(-50%) rotate(90deg)}
.sb-kids{display:none;flex-direction:column;gap:1px;margin:2px 0 4px}
.sb-row.open + .sb-kids{display:flex}
.sb-kid{display:flex;align-items:center;gap:8px;padding:6px 11px 6px 38px;border-radius:var(--r-sm);font-size:12.5px;color:var(--faint);transition:.15s}
.sb-kid:hover{color:var(--text);background:var(--surface-2)}
.sb-kid.is-active{color:var(--primary)}
.sb-foot{padding:12px;border-top:1px solid var(--border);flex-shrink:0}
.sb-follow{
  display:flex;align-items:center;gap:10px;flex-shrink:0;cursor:pointer;
  background:linear-gradient(135deg,var(--primary),color-mix(in srgb,var(--primary) 68%,#1e40af));
  color:#fff;border-radius:var(--radius-sm);padding:9px 12px;transition:.18s;
}
.sb-follow:hover{filter:brightness(1.06);transform:translateY(-1px)}
.sb-follow .ic{width:30px;height:30px;border-radius:var(--r-sm);background:rgba(255,255,255,.2);display:grid;place-items:center;flex-shrink:0;padding:6px}
.sb-follow b{font-size:13px;display:block;line-height:1.25}
.sb-follow span{font-size:11px;opacity:.88}
.backdrop{display:none;position:fixed;inset:0;background:rgba(15,17,21,.45);z-index:29}
.backdrop.show{display:block}

/* ---------- 顶栏 ---------- */
.topbar{
  display:flex;align-items:center;gap:8px;height:var(--topbar-h);padding:0 28px;
  border-bottom:1px solid var(--border);background:var(--surface);
  background:color-mix(in srgb,var(--surface) 86%,transparent);
  -webkit-backdrop-filter:saturate(1.4) blur(8px);backdrop-filter:saturate(1.4) blur(8px);z-index:20;
}
.topbar.is-sticky{position:sticky;top:0}
.topbar .spacer{flex:1}
.topbar .icon-btn{
  width:34px;height:34px;border-radius:var(--r-sm);background:transparent;border:1px solid transparent;
  display:grid;place-items:center;color:var(--text);transition:.15s;
}
.topbar .icon-btn:hover{background:var(--surface-2);color:var(--primary)}
.topbar .icon-btn .ic{width:17px;height:17px}
.topbar .icon-btn .ic-sun{display:none}
[data-theme="dark"] .topbar .icon-btn .ic-moon{display:none}
[data-theme="dark"] .topbar .icon-btn .ic-sun{display:block}
.topbar .tb-link{font-size:13px;color:var(--muted);padding:6px 10px;border-radius:var(--r-sm)}
.topbar .tb-link:hover{color:var(--text);background:var(--surface-2)}
.topbar .tb-link--hot{display:inline-flex;align-items:center;gap:5px;color:var(--a-rose);font-weight:600}
.topbar .tb-link--hot .ic{width:15px;height:15px}
.topbar .tb-link--hot:hover{color:var(--a-rose);background:color-mix(in srgb,var(--a-rose) 12%,transparent)}
.topbar .tb-link--res{display:inline-flex;align-items:center;gap:5px;color:var(--a-teal);font-weight:600}
.topbar .tb-link--res .ic{width:15px;height:15px}
.topbar .tb-link--res:hover{color:var(--a-teal);background:color-mix(in srgb,var(--a-teal) 12%,transparent)}
.topbar .tb-login{
  font-size:13px;font-weight:600;color:#fff;background:var(--primary);
  padding:7px 15px;border-radius:var(--r-pill);transition:.15s;
}
.topbar .tb-login:hover{background:var(--primary-hover)}
.hamburger{display:none;flex-direction:column;gap:4px;width:36px;height:36px;align-items:center;justify-content:center;background:transparent;border:0}
.hamburger span{width:18px;height:2px;background:var(--text);border-radius:2px}

/* ---------- 内容区 ---------- */
.content{flex:1;padding-bottom:40px}
.section{padding:40px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:22px;flex-wrap:wrap}
.section-head h2{font-size:clamp(20px,2.6vw,26px)}
.section-head p{color:var(--muted);font-size:13.5px;margin-top:6px}
.section-head .more{font-size:13px;color:var(--primary);font-weight:600;white-space:nowrap}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:11.5px;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--primary);margin-bottom:14px}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--primary)}
.grid{display:grid;gap:18px}
/* auto-fill（非 auto-fit）：保留空轨道，卡片数量不足时不会被拉伸变宽 */
.grid-3{grid-template-columns:repeat(auto-fill,minmax(272px,1fr))}

/* ---------- Hero ---------- */
/* 只设纵向内边距，避免覆盖 .container 的左右 28px 内边距（否则 hero 比下方内容宽） */
.hero{position:relative;overflow:hidden;padding:56px 0 44px;border-bottom:1px solid var(--border);background:linear-gradient(135deg,color-mix(in srgb,var(--primary) 8%,var(--bg)) 0%,var(--bg) 60%)}
.hero::before{content:"";position:absolute;inset:0;z-index:0;opacity:.9;pointer-events:none;background:radial-gradient(46% 70% at 8% 0%,color-mix(in srgb,var(--primary) 16%,transparent),transparent 62%),radial-gradient(42% 64% at 94% 26%,color-mix(in srgb,var(--a-teal) 15%,transparent),transparent 62%)}
.hero .container{position:relative;z-index:1}
.hero h1{font-size:clamp(28px,4.4vw,44px);font-weight:800;letter-spacing:-.02em;max-width:20ch}
.hero .lede{color:var(--muted);font-size:16.5px;margin-top:16px;max-width:60ch}
.hero-search{display:flex;align-items:center;gap:10px;margin-top:26px;max-width:520px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-pill);padding:11px 18px;box-shadow:var(--e1)}
.hero-search input{flex:1;border:0;background:transparent;font-size:14.5px;color:var(--text);outline:0;min-width:0}
.hero-cta{display:inline-flex;align-items:center;gap:8px;margin-top:22px;background:var(--primary);color:#fff;font-weight:600;font-size:14px;padding:11px 22px;border-radius:var(--r-pill)}
.hero-cta:hover{background:var(--primary-hover)}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap;margin-top:34px}
.hero-stats .stat b{font-family:var(--display);font-size:26px;font-weight:800;display:block}
.hero-stats .stat span{font-size:12.5px;color:var(--faint);letter-spacing:.03em}

/* ---------- 关注条 ---------- */
.follow-band{display:flex;align-items:center;gap:22px;flex-wrap:wrap;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px 26px;box-shadow:var(--e1)}
.follow-band .qr{width:104px;flex-shrink:0}
.follow-band .fb-text{flex:1;min-width:220px}
.follow-band h3{font-size:19px}
.follow-band p{color:var(--muted);font-size:13.5px;margin-top:6px}
.follow-band .fb-actions{display:flex;gap:10px;flex-wrap:wrap}
.follow-band .fb-others{flex-basis:100%;display:flex;align-items:center;gap:12px;flex-wrap:wrap;border-top:1px solid var(--border);padding-top:16px}
.follow-band .fb-others__label{font-size:12.5px;color:var(--faint)}
.follow-band .fb-others .social-row{gap:10px}
.follow-band .fb-others .social-chip{padding:6px 14px 6px 7px;font-size:13px}
.follow-band .fb-others .dotmark{width:22px;height:22px;font-size:12px}
.btn{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;padding:9px 18px;border-radius:var(--r-pill);border:1px solid transparent;transition:.15s}
.btn--primary{background:var(--primary);color:#fff}
.btn--primary:hover{background:var(--primary-hover)}
.btn--ghost{background:var(--surface);border-color:var(--border);color:var(--text)}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary)}

/* ---------- 二维码 ---------- */
.qr{background:#fff;border:1px solid var(--border);border-radius:var(--r-md);padding:10px;box-shadow:var(--e1)}
.qr-img{width:100%;aspect-ratio:1/1;border-radius:var(--r-xs);background:#fff center/cover no-repeat;
  background-image:conic-gradient(#1f2329 0 25%,#fff 0 50%,#1f2329 0 75%,#fff 0);background-size:15px 15px}
.qr-mini{width:44px;padding:4px;flex-shrink:0}
.qr-modal{position:fixed;inset:0;z-index:80;display:grid;place-items:center}
.qr-modal[hidden]{display:none}
.qr-modal__mask{position:absolute;inset:0;background:rgba(15,17,21,.5)}
.qr-modal__card{position:relative;background:var(--surface);border-radius:var(--r-lg);padding:26px;width:280px;text-align:center;box-shadow:var(--e3)}
.qr-modal__card .qr{width:200px;margin:0 auto}
.qr-modal__title{font-size:16px;margin-top:16px}
.qr-modal__hook{font-size:12.5px;color:var(--muted);margin-top:6px}
.qr-modal__close{position:absolute;top:10px;right:14px;background:transparent;border:0;font-size:22px;color:var(--faint);line-height:1}
/* 获取下载：关注弹窗（详情页内弹出，替代整页 /dl 门槛） */
.dl-modal{position:fixed;inset:0;z-index:80;display:grid;place-items:center;padding:20px}
.dl-modal[hidden]{display:none}
.dl-modal__mask{position:absolute;inset:0;background:rgba(15,17,21,.5)}
.dl-modal__card{position:relative;background:var(--surface);border-radius:var(--r-lg);padding:26px;width:min(400px,100%);text-align:center;box-shadow:var(--e3)}
.dl-modal__close{position:absolute;top:10px;right:14px;background:transparent;border:0;font-size:22px;color:var(--faint);line-height:1;cursor:pointer}
.dl-modal__cover{width:120px;margin:0 auto 14px;border-radius:var(--r-md);overflow:hidden;box-shadow:var(--e2);aspect-ratio:3/4;background:var(--surface-2)}
.dl-modal__cover--res{width:84px;aspect-ratio:1;display:grid;place-items:center}
.dl-modal__cover img{display:block;width:100%;height:100%;object-fit:cover}
.dl-modal__cover .ic{width:36px;height:36px}
.dl-modal__cover .book-cover__gen-txt{font-size:44px}
.dl-modal__title{font-size:17px;margin-bottom:4px}
.dl-modal__sub{font-size:13px;color:var(--muted);margin-bottom:16px}
.dl-modal__qr{width:170px;height:170px;margin:0 auto 10px;border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden;background:var(--surface-2)}
.dl-modal__qr .qr-img{width:100%;height:100%;background-size:cover;background-position:center}
.dl-modal__hook{font-size:12.5px;color:var(--muted);margin-bottom:18px}

/* ---------- 卡片：站点 ---------- */
.site-cards{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(258px,1fr))}
.site-cards.cols-2{grid-template-columns:repeat(2,1fr)}
.site-cards.cols-3{grid-template-columns:repeat(3,1fr)}
.site-cards.cols-4{grid-template-columns:repeat(4,1fr)}
.site-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;display:flex;flex-direction:column;gap:13px;transition:.18s;position:relative;box-shadow:var(--e2)}
.site-card:hover{transform:translateY(-2px);box-shadow:var(--e3);border-color:var(--primary-line)}
.site-card .top{display:flex;align-items:center;gap:12px}
.site-mark{width:44px;height:44px;border-radius:var(--r-sm);display:grid;place-items:center;font-weight:800;font-size:19px;color:#fff;flex-shrink:0;overflow:hidden}
.site-mark img{width:100%;height:100%;object-fit:cover}
.site-card h3{font-size:16px;font-family:var(--sans);font-weight:600}
.site-card .desc{font-size:13px;color:var(--muted);flex:1}
.site-card .foot{display:flex;align-items:center;justify-content:space-between;gap:10px}
.site-card .tags{display:flex;gap:6px;flex-wrap:wrap}
.site-card .go{font-size:12.5px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:5px}
.site-card .hot{position:absolute;top:14px;right:14px;font-size:10.5px;font-family:var(--mono);color:var(--faint)}
.tag{font-size:11.5px;padding:3px 9px;border-radius:var(--r-xs);background:var(--surface-2);color:var(--muted);border:1px solid var(--border);white-space:nowrap}

/* ---------- 卡片：图书（竖版封面 3:4） ---------- */
.book-cards{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(210px,1fr))}
.book-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.18s;box-shadow:var(--e2)}
.book-card:hover{transform:translateY(-2px);box-shadow:var(--e3);border-color:var(--primary-line)}
.book-cover{display:block;aspect-ratio:3/4;background:var(--surface-2);overflow:hidden}
.book-cover img{display:block;width:100%;height:100%;object-fit:cover}
.book-cover__gen{display:grid;place-items:center;width:100%;height:100%}
.book-cover__gen-txt{font-size:52px;font-weight:800;color:#fff;opacity:.92}
.book-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:10px;flex:1}
.book-body h3{font-size:15.5px;font-family:var(--sans);font-weight:600;line-height:1.35}
.book-body .desc{font-size:12.5px;color:var(--muted);flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.book-body .foot{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:2px}
.book-body .tags{display:flex;gap:6px;flex-wrap:wrap;min-width:0}
.book-body .go{font-size:12.5px;font-weight:600;color:var(--primary);white-space:nowrap}

/* ---------- 资源下载 ---------- */
.res-cards{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(258px,1fr))}
.res-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;display:flex;flex-direction:column;gap:13px;transition:.18s;position:relative;box-shadow:var(--e2)}
.res-card:hover{transform:translateY(-2px);box-shadow:var(--e3);border-color:var(--primary-line)}
.res-card .top{display:flex;align-items:center;gap:12px}
.res-mark{flex-shrink:0;width:44px;height:44px;border-radius:var(--r-sm);overflow:hidden;background:var(--surface-2);display:block}
.res-mark img{display:block;width:100%;height:100%;object-fit:cover}
.res-mark__gen{display:grid;place-items:center;width:100%;height:100%;color:#fff}
.res-mark__gen .ic{width:22px;height:22px}
.res-card h3{font-size:16px;font-family:var(--sans);font-weight:600;line-height:1.35;min-width:0}
.res-card .desc{font-size:13px;color:var(--muted);flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.res-card .foot{display:flex;align-items:center;justify-content:space-between;gap:10px}
.res-card .tags{display:flex;gap:6px;flex-wrap:wrap;min-width:0}
.res-card .go{font-size:12.5px;font-weight:600;color:var(--primary);white-space:nowrap}
.res-type{display:inline-flex;align-items:center;font-size:11.5px;font-weight:600;color:var(--primary);background:var(--primary-soft);border:1px solid var(--primary-line);border-radius:var(--r-pill);padding:2px 9px;line-height:1.5}
.res-hero{display:flex;gap:24px;align-items:flex-start;flex-wrap:wrap}
.res-hero__mark{width:110px;height:110px;flex-shrink:0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--e2);background:var(--surface-2)}
.res-hero__mark img{display:block;width:100%;height:100%;object-fit:cover}
.res-hero__mark .res-mark__gen .ic{width:48px;height:48px}
.res-hero .info{flex:1;min-width:260px}
.res-hero__types{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px}
.res-hero h1{font-size:clamp(24px,3.6vw,34px);font-weight:800}
.res-hero .desc{color:var(--muted);margin-top:12px;max-width:64ch}
.cat-tab--sm{font-size:12.5px;padding:5px 11px}
/* 资源筛选面板：类型 / 分类两行 + 右上搜索，避免搜索夹在两层筛选之间 */
.filter-panel{display:flex;flex-direction:column;gap:13px;padding:16px 20px 18px;margin:22px 0 28px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}
.filter-panel .filterbar-search{align-self:flex-end}
.filter-row{display:flex;align-items:flex-start;gap:14px}
.filter-row__label{flex-shrink:0;min-width:40px;padding-top:6px;font-size:12.5px;font-weight:600;color:var(--faint);letter-spacing:.05em}
.filter-row .cat-tabs{flex:1;min-width:0}

/* 热门页 */
.pop-intro{margin-top:10px;color:var(--muted);font-size:14px;max-width:62ch}
/* 热门页 · 时间范围切换 */
.hot-tabs{margin-top:20px}
/* 热门页 · 绝对爆款 */
.hot-hero{display:grid;grid-template-columns:1.55fr 1fr;gap:16px}
.hot-hero__card{position:relative;display:flex;overflow:hidden;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);box-shadow:var(--e1);color:inherit;transition:.18s}
.hot-hero__card:hover{border-color:var(--primary-line);box-shadow:var(--e2);transform:translateY(-2px)}
.hot-hero__cover{position:relative;overflow:hidden;background:var(--surface-2)}
.hot-hero__cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.hot-hero__card:hover .hot-hero__cover img{transform:scale(1.05)}
.hot-hero__gen{position:absolute;inset:0}
.hot-hero__cover .res-mark__gen .ic{width:52px;height:52px}
.hot-hero__card--mid .hot-hero__cover .res-mark__gen .ic{width:34px;height:34px}
.hot-hero__cover .book-cover__gen-txt{font-size:64px}
.hot-hero__card--mid .hot-hero__cover .book-cover__gen-txt{font-size:40px}
/* 大卡（第 1 名） */
.hot-hero__card--big{grid-row:1/3;flex-direction:column;min-height:300px}
.hot-hero__card--big .hot-hero__cover{flex:1}
.hot-hero__overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.74),rgba(0,0,0,.15) 55%,transparent 85%)}
.hot-hero__content{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:18px 20px}
.hot-hero__badge{display:inline-block;margin-bottom:8px;padding:2px 9px;font-size:11px;font-weight:600;color:#ffd76a;background:rgba(255,215,0,.18);border:1px solid rgba(255,215,0,.42);border-radius:var(--r-pill)}
.hot-hero__title{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:20px;font-weight:800;line-height:1.35;color:#fff;text-shadow:0 2px 8px rgba(0,0,0,.4)}
.hot-hero__meta{display:flex;align-items:center;gap:12px;margin-top:10px;font-size:11.5px;color:rgba(255,255,255,.82)}
.hot-hero__author{display:flex;align-items:center;gap:6px}
.hot-hero__av{width:22px;height:22px;border-radius:50%;border:1px solid rgba(255,255,255,.35)}
/* 中卡（第 2/3 名） */
.hot-hero__card--mid{flex-direction:row}
.hot-hero__card--mid .hot-hero__cover{width:132px;flex-shrink:0}
.hot-hero__info{display:flex;flex-direction:column;flex:1;min-width:0;padding:12px 14px}
.hot-hero__card--mid .hot-hero__title{font-size:14px;font-weight:700;color:var(--text);text-shadow:none;-webkit-line-clamp:3}
.hot-hero__card--mid:hover .hot-hero__title{color:var(--primary)}
.hot-hero__card--mid .hot-hero__meta{margin-top:auto;color:var(--faint)}
.hot-hero__card--mid .hot-hero__av{width:18px;height:18px;border-color:var(--border)}
/* 资源榜：封面为竖版书封（3:4），三张等高横卡，封面作小缩略图，避免大图铺满 */
.hot-hero--res{grid-template-columns:repeat(3,1fr)}
.hot-hero--res .hot-hero__card--mid{height:126px}
.hot-hero--res .hot-hero__cover{width:96px}
.hot-hero--res .hot-hero__card--top{border-color:rgba(255,170,0,.5);box-shadow:var(--e2)}
.hot-hero--res .hot-hero__badge{color:#9a6b00;background:rgba(255,190,0,.16);border-color:rgba(255,190,0,.5)}
/* 奖牌 */
.hot-medal{position:absolute;top:10px;left:10px;z-index:3;display:grid;place-items:center;width:26px;height:26px;font-size:12px;font-weight:800;color:#fff;border:2px solid rgba(255,255,255,.6);border-radius:50%;box-shadow:0 2px 8px rgba(0,0,0,.28)}
.hot-medal--1{background:linear-gradient(135deg,#ffd700,#ffa500)}
.hot-medal--2{background:linear-gradient(135deg,#c0c0c0,#8f8f8f)}
.hot-medal--3{background:linear-gradient(135deg,#cd7f32,#96521e)}

/* 热门页 · 热门话题 */
.hot-topics{display:flex;flex-wrap:wrap;gap:10px}
.hot-topic{display:inline-flex;align-items:center;gap:6px;padding:7px 15px;font-size:13px;color:var(--muted);background:var(--surface);border:1px solid var(--border);border-radius:var(--r-pill);transition:.15s}
.hot-topic:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.hot-topic .hash{font-weight:800;opacity:.55}
.hot-topic .fire{display:inline-flex;color:var(--a-amber)}
.hot-topic .fire .ic{width:13px;height:13px}
.hot-topic .n{font-size:11px;font-family:var(--mono);color:var(--faint)}
.hot-topic.is-top{color:var(--a-amber);background:color-mix(in srgb,var(--a-amber) 8%,transparent);border-color:color-mix(in srgb,var(--a-amber) 42%,var(--border));font-weight:600}
.hot-topic.is-top .n{color:var(--a-amber)}
.hot-topic.is-top:hover{color:#fff;background:var(--a-amber);border-color:var(--a-amber)}

/* 热门页 · 领域热榜（沿用全站卡片语言，每分类一个色相 --hb 点缀） */
.hot-boards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(300px,100%),1fr));gap:18px}
.hot-board{--hb:var(--primary);display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--e2);overflow:hidden;transition:.18s}
.hot-board:hover{transform:translateY(-2px);box-shadow:var(--e3);border-color:color-mix(in srgb,var(--hb) 42%,var(--border))}
.hot-board__head{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid var(--border)}
.hot-board__icon{display:grid;place-items:center;width:28px;height:28px;flex-shrink:0;color:#fff;border-radius:var(--r-sm);background:linear-gradient(135deg,color-mix(in srgb,var(--hb) 74%,#fff),var(--hb))}
.hot-board__icon .ic{width:16px;height:16px}
.hot-board__name{font-size:15px;font-weight:700}
.hot-board__count{margin-left:auto;font-size:11px;font-family:var(--mono);color:var(--faint)}
.hot-board__list{flex:1;list-style:none;margin:0;padding:6px 8px}
.hot-board__list a{display:flex;align-items:center;gap:10px;padding:8px;border-radius:var(--r-sm);transition:.15s}
.hot-board__list a:hover{background:color-mix(in srgb,var(--hb) 7%,transparent)}
.hot-rank{display:grid;place-items:center;width:20px;height:20px;flex-shrink:0;font-size:11px;font-weight:700;font-family:var(--mono);color:var(--faint);background:var(--surface-2);border-radius:var(--r-xs)}
.hot-rank--1{color:#fff;background:var(--hb)}
.hot-rank--2{color:var(--hb);background:color-mix(in srgb,var(--hb) 16%,transparent)}
.hot-rank--3{color:var(--hb);background:color-mix(in srgb,var(--hb) 16%,transparent)}
.hot-board__title{flex:1;min-width:0;font-size:13.5px;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hot-board__list a:hover .hot-board__title{color:var(--hb)}
.hot-board__type{flex-shrink:0;font-size:11px;line-height:1.6;color:var(--hb);background:color-mix(in srgb,var(--hb) 10%,transparent);border-radius:var(--r-xs);padding:1px 7px}
.hot-board__views{flex-shrink:0;font-size:11px;font-family:var(--mono);color:var(--faint)}
.hot-board__more{display:flex;align-items:center;justify-content:center;gap:4px;padding:11px 16px;border-top:1px solid var(--border);font-size:12.5px;font-weight:600;color:var(--hb)}
.hot-board__more:hover{background:color-mix(in srgb,var(--hb) 7%,transparent)}
.hot-board__more .ic{width:13px;height:13px;transition:transform .18s}
.hot-board__more:hover .ic{transform:translateX(3px)}

/* ---------- 卡片：文章 ---------- */
.post-cards{display:grid;gap:18px}
.post-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.18s;display:flex;flex-direction:column;box-shadow:var(--e2)}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--e3);border-color:var(--primary-line)}
.post-cover{height:146px;position:relative;overflow:hidden}
.post-cover .ph{position:absolute;inset:0}
.post-cover .ph img{width:100%;height:100%;object-fit:cover}
.post-cover .ph--gen::before{content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 80% 14%,rgba(255,255,255,.4),transparent 44%),
    radial-gradient(circle at 8% 92%,rgba(0,0,0,.16),transparent 48%)}
.post-cover .ph--gen::after{content:"";position:absolute;inset:0;opacity:.45;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.16) 0 2px,transparent 2px 12px)}
.post-cover .topic{position:absolute;left:12px;bottom:12px;font-size:11px;font-weight:600;color:#fff;background:rgba(15,17,21,.55);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);padding:4px 10px;border-radius:var(--r-xs)}
.post-body{padding:16px;display:flex;flex-direction:column;gap:9px;flex:1}
.post-body h3{font-size:16.5px;font-family:var(--sans);font-weight:600;line-height:1.4}
.post-body .excerpt{font-size:13px;color:var(--muted);flex:1}
.post-meta{display:flex;align-items:center;gap:10px;font-size:11.5px;color:var(--faint);flex-wrap:wrap}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--faint)}
.post-order{font-family:var(--mono);font-size:13px;color:var(--faint);min-width:1.6em}

/* ---------- 徽章 ---------- */
.badge{font-size:11px;font-weight:600;padding:3px 9px;border-radius:var(--r-xs);white-space:nowrap}
.badge--basic{background:#e8f5ee;color:#128a52}
.badge--inter{background:#eaf1fe;color:#1f6fe5}
.badge--pro{background:#fdeee7;color:#d1512a}
[data-theme="dark"] .badge--basic{background:#123123;color:#4ade80}
[data-theme="dark"] .badge--inter{background:#16233a;color:#7db2ff}
[data-theme="dark"] .badge--pro{background:#331c14;color:#ff8f66}

/* ---------- 分类卡 ---------- */
.path-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;display:flex;flex-direction:column;gap:13px;transition:.18s;box-shadow:var(--e2)}
.path-card:hover{transform:translateY(-2px);box-shadow:var(--e3);border-color:var(--primary-line)}
.path-card .pc-head{display:flex;align-items:center;gap:12px}
.path-card .pc-thumb{width:44px;height:44px;border-radius:var(--r-sm);overflow:hidden;flex-shrink:0;background:var(--surface-2);display:grid;place-items:center}
.path-card .pc-thumb img{width:100%;height:100%;object-fit:cover}
.path-card h3{font-size:16px;font-family:var(--sans);font-weight:600;line-height:1.3}
.path-card .pdesc{margin:0;font-size:13px;color:var(--muted);line-height:1.65;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.path-card .pmeta{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.5px;color:var(--faint)}
.path-card .pc-arrow{font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:5px}
.path-card:hover .pc-arrow .ic{transform:translateX(3px)}
.path-card .pc-arrow .ic{transition:transform .18s}

/* ---------- 社交 ---------- */
.social-row{display:flex;gap:12px;flex-wrap:wrap}
.social-chip{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-pill);padding:8px 18px 8px 9px;font-size:13.5px;font-weight:500;transition:.18s;box-shadow:var(--e2)}
.social-chip:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.dotmark{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:13px;font-weight:700;flex-shrink:0}

/* ---------- 主题瓦片 ---------- */
.portal-tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.portal-tile{display:flex;align-items:center;gap:12px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;transition:.18s;box-shadow:var(--e2)}
.portal-tile:hover{border-color:var(--primary-line);transform:translateY(-2px);box-shadow:var(--e3)}
.portal-tile .tile-thumb{width:40px;height:40px;border-radius:var(--r-sm);overflow:hidden;flex-shrink:0;background:var(--surface-2);display:grid;place-items:center;color:var(--faint)}
.portal-tile .tile-thumb img{width:100%;height:100%;object-fit:cover}
.portal-tile .tile-thumb .ic{width:18px;height:18px}
.portal-tile .tile-arrow{margin-left:auto;display:flex;color:var(--primary);opacity:.45;transition:.18s}
.portal-tile:hover .tile-arrow{opacity:1;transform:translateX(3px)}
.portal-tile b{font-size:14.5px;display:block}
.portal-tile span{font-size:12px;color:var(--faint)}

/* ---------- 广告 ---------- */
.ad-slot{position:relative;display:flex;align-items:center;justify-content:center;min-height:90px;margin:26px 0;border:1px dashed var(--border-strong);border-radius:var(--radius);background:var(--surface-2);color:var(--faint)}
.ad-slot__label{position:absolute;top:8px;left:10px;font-size:9.5px;letter-spacing:.12em;border:1px solid var(--border-strong);border-radius:var(--r-xs);padding:1px 6px;background:var(--surface)}
.ad-slot__body{width:100%;text-align:center}

/* ---------- 页头（内页） ---------- */
.page-head{padding:34px 0 22px;border-bottom:1px solid var(--border);background:var(--surface)}
/* 变体：与内容区同底色、不画分隔线（仅热门文章页使用） */
.page-head--flat{border-bottom:0;background:var(--bg)}
.breadcrumb{font-size:12.5px;color:var(--faint);margin-bottom:14px;font-family:var(--mono);letter-spacing:.02em}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{color:var(--border-strong);margin:0 8px}
.page-head h1{font-size:clamp(24px,3.2vw,36px);font-weight:800}
.page-head .sub{color:var(--muted);font-size:14.5px;margin-top:12px;max-width:62ch}
.filterbar{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:start;padding:20px 0}
.cat-tabs{display:flex;gap:6px;flex-wrap:wrap}
.cat-tab{font-size:13px;font-weight:500;padding:7px 15px;border-radius:var(--r-pill);border:1px solid var(--border);background:var(--surface);color:var(--muted)}
.cat-tab:hover{color:var(--text);border-color:var(--border-strong)}
.cat-tab.is-active{background:var(--primary);border-color:var(--primary);color:#fff}
.filterbar-search{margin-left:auto;justify-self:end;display:flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-pill);padding:8px 15px;transition:.15s}
.filterbar-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.filterbar-search .ic{width:15px;height:15px;flex-shrink:0;color:var(--faint)}
.filterbar-search input[type=search]{border:0;background:transparent;outline:0;font-family:var(--sans);font-size:13px;color:var(--text);min-width:168px;padding:0}
.filterbar-search input[type=search]::placeholder{color:var(--faint)}

/* ---------- 站点详情 ---------- */
.site-hero{display:flex;gap:24px;align-items:flex-start;padding:0 0 4px;flex-wrap:wrap}
.site-hero .mark{width:80px;height:80px;border-radius:var(--r-lg);display:grid;place-items:center;color:#fff;font-weight:800;font-size:36px;box-shadow:var(--e2);overflow:hidden}
.site-hero .mark img{width:100%;height:100%;object-fit:cover}
.site-hero .info{flex:1;min-width:260px}
.site-hero h1{font-size:clamp(24px,3.6vw,34px);font-weight:800}
.site-hero .desc{color:var(--muted);margin-top:12px;max-width:64ch}
.site-hero__contrib{margin-top:10px}
.site-actions{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.site-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:22px}
.site-meta__label{font-size:12px;font-family:var(--mono);color:var(--faint);letter-spacing:.04em}
.site-meta .tags{display:flex;gap:6px;flex-wrap:wrap}

/* ---------- 图书详情 ---------- */
.book-hero{display:flex;gap:28px;align-items:flex-start;flex-wrap:wrap}
.book-hero__cover{width:210px;flex-shrink:0;aspect-ratio:3/4;border-radius:var(--r-md);overflow:hidden;box-shadow:var(--e2);background:var(--surface-2)}
.book-hero__cover img{display:block;width:100%;height:100%;object-fit:cover}
.book-hero__cover .book-cover__gen-txt{font-size:76px}
.book-hero .info{flex:1;min-width:260px}
.book-hero h1{font-size:clamp(24px,3.6vw,34px);font-weight:800}
.book-hero .desc{color:var(--muted);margin-top:12px;max-width:64ch}
.book-actions{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.book-actions__note{font-size:12.5px;color:var(--faint);margin-top:12px}

/* ---------- 文章正文 ---------- */
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;padding:34px 0}
.article-wrap.no-side{grid-template-columns:minmax(0,1fr)}
.article{min-width:0}
.article h1{font-size:clamp(26px,3.4vw,36px);font-weight:800;letter-spacing:-.01em}
.article-meta{display:flex;align-items:center;gap:12px;margin-top:18px;flex-wrap:wrap;font-size:12.5px;color:var(--faint)}
.article-body{max-width:68ch;margin-top:28px;font-size:16px;line-height:1.85;color:var(--text)}
.article-body h2{font-size:22px;margin:36px 0 14px;color:var(--text)}
.article-body h3{font-size:18px;margin:28px 0 12px;color:var(--text)}
.article-body p{margin:0 0 18px;color:var(--text)}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:2px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px}
.article-body li{margin:6px 0}
.article-body img{border-radius:var(--radius);margin:18px 0}
.article-body blockquote{margin:22px 0;padding:6px 20px;border-left:3px solid var(--primary);color:var(--muted);background:var(--primary-soft);border-radius:var(--r-xs)}
.article-body code{font-family:var(--mono);font-size:.9em;background:var(--surface-2);padding:2px 6px;border-radius:var(--r-xs);color:var(--text)}
.article-body pre{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius);padding:16px;overflow:auto;margin:18px 0}
.article-body pre code{background:none;padding:0}
.callout{position:relative;border:1px solid var(--border);background:var(--primary-soft);border-radius:var(--radius);padding:16px 20px 16px 22px;margin:24px 0;box-shadow:var(--e1);overflow:hidden}
.callout::before{content:"";position:absolute;left:9px;top:12px;bottom:12px;width:3px;border-radius:var(--r-pill);background:var(--primary)}
/* 前置阅读多条：改为纵向列表卡片，避免挤成一行 */
.callout--prereq{padding-bottom:14px}
.callout__lead{display:block;margin-bottom:10px}
.prereq-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.prereq-list a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 14px;border:1px solid var(--border);border-radius:var(--r-sm);background:var(--surface);color:var(--text);font-size:14px;line-height:1.4;text-decoration:none;transition:.15s}
.prereq-list a:hover{border-color:var(--primary-line);color:var(--primary);box-shadow:var(--e1)}
.prereq-list a span{min-width:0}
.prereq-list a .ic{flex-shrink:0;color:var(--faint)}
.prereq-list a:hover .ic{color:var(--primary)}
/* ---------- 投稿：署名标签 + 作者推广条 ---------- */
.meta-contrib{display:inline-flex;align-items:center;font-size:11px;font-weight:600;padding:2px 9px;border-radius:var(--r-pill);background:var(--primary-soft);color:var(--primary);letter-spacing:.02em}
.btn--sm{padding:7px 15px;font-size:12.5px}
.byline-card{display:flex;gap:14px;align-items:flex-start;border:1px solid var(--border);background:var(--surface);border-radius:var(--radius);padding:18px 20px;margin:30px 0 4px;box-shadow:var(--e1)}
.byline-card__ic{flex-shrink:0;width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--primary-soft);color:var(--primary)}
.byline-card__ic .ic{width:19px;height:19px}
.byline-card__body{min-width:0;display:flex;flex-direction:column;gap:4px}
.byline-card__label{font-size:11px;font-family:var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--faint)}
.byline-card__name{font-size:15px;font-weight:700;color:var(--text)}
.byline-card__text{margin:0;font-size:13.5px;line-height:1.7;color:var(--muted)}
.byline-card__btn{margin-top:8px;align-self:flex-start}
.series-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:40px 0}
.series-nav a{border:1px solid var(--border);border-radius:var(--radius);padding:16px;background:var(--surface);transition:.15s}
.series-nav a:hover{border-color:var(--primary-line);box-shadow:var(--e2)}
.series-nav .dir{font-size:11px;font-family:var(--mono);color:var(--faint);text-transform:uppercase;letter-spacing:.08em}
.series-nav b{display:block;margin-top:6px;font-size:14px}
.series-nav .next{text-align:right}
.related{margin-top:44px;padding-top:32px;border-top:1px solid var(--border)}
.related-title{font-size:19px;margin-bottom:18px}
.article-side{min-width:0}
/* 侧栏小工具：每个小工具一个主题色（标题 + 左侧色条），缩略图保持多彩 */
.side-box{--side-accent:var(--primary);border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);padding:18px;margin-bottom:20px}
.side-box h4{display:flex;align-items:center;gap:8px;font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--side-accent);margin-bottom:14px}
.side-box h4::before{content:"";width:3px;height:13px;border-radius:2px;background:var(--side-accent);flex-shrink:0}
[data-theme="dark"] .side-box h4{color:color-mix(in srgb,var(--side-accent) 74%,#fff)}
[data-theme="dark"] .side-box h4::before{background:color-mix(in srgb,var(--side-accent) 74%,#fff)}
.widget_navpress_recent_posts{--side-accent:var(--a-blue)}
.widget_navpress_popular_posts{--side-accent:var(--a-amber)}
.widget_navpress_hot_sites{--side-accent:var(--a-rose)}
.widget_navpress_recent_sites{--side-accent:var(--a-violet)}
.side-posts{list-style:none;padding:0;display:flex;flex-direction:column;gap:2px;margin:0 -9px}
.side-post{display:flex;align-items:center;gap:11px;padding:7px 9px;border-radius:var(--r-sm);transition:.15s}
.side-post:hover{background:var(--surface-2)}
.side-post__thumb{width:42px;height:42px;border-radius:var(--r-sm);overflow:hidden;flex-shrink:0;display:block;background:var(--surface-2)}
.side-post__thumb img{width:100%;height:100%;object-fit:cover;display:block}
.side-post__thumb .book-cover__gen-txt{font-size:18px}
.side-post__thumb .res-mark__gen .ic{width:20px;height:20px}
.side-post__text{min-width:0}
.side-post__title{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:13px;font-weight:500;line-height:1.45;color:var(--text)}
.side-post:hover .side-post__title{color:var(--primary)}
.side-post__meta{display:block;margin-top:2px;font-size:11px;color:var(--faint)}
.side-post__meta--desc{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
/* 热门文章：排行榜风格（大序号 + 标题），与「最近更新」图文流区分 */
.rank-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column}
.rank-item{display:flex;align-items:center;gap:13px;padding:10px 0;border-top:1px solid var(--border)}
.rank-list li:first-child .rank-item{border-top:0;padding-top:2px}
.rank-item__no{flex-shrink:0;width:27px;height:27px;display:grid;place-items:center;font-family:var(--mono);font-size:13px;font-weight:700;border-radius:var(--r-sm);background:var(--surface-2);color:var(--muted)}
.rank-list li:nth-child(-n+3) .rank-item__no{background:var(--a-amber);color:#fff}
.rank-item__text{min-width:0}
.rank-item__title{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:13px;font-weight:500;line-height:1.45;color:var(--text)}
.rank-item:hover .rank-item__title{color:var(--primary)}
.rank-item__meta{display:block;margin-top:2px;font-size:11px;color:var(--faint)}

/* ---------- 关于 / 自媒体矩阵 ---------- */
.about-body{max-width:68ch;font-size:16px;line-height:1.85;color:var(--text)}
.about-body p{margin:0 0 18px}
.facts{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:16px;margin:28px 0}
.fact{border:1px solid var(--border);border-radius:var(--radius);padding:18px;background:var(--surface)}
.fact b{font-family:var(--display);font-size:26px;font-weight:800;display:block}
.fact span{font-size:12.5px;color:var(--faint)}
.matrix{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(430px,100%),1fr));gap:12px}
.matrix-row{display:flex;align-items:center;gap:14px;border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;background:var(--surface);transition:.15s}
.matrix-row:hover{border-color:var(--primary-line);box-shadow:var(--e2)}
.matrix-row .dotmark{width:34px;height:34px;font-size:14px;color:#fff}
.matrix-row > div{flex:1;min-width:0}
.matrix-row b{font-size:14px;display:block}
.matrix-row span{font-size:12px;color:var(--faint)}
.matrix-row .go{font-size:12.5px;font-weight:600;color:var(--primary);white-space:nowrap}

/* ---------- 分页 ---------- */
.nav-pagination{margin:36px 0}
.nav-pagination .nav-links{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.nav-pagination .page-numbers{padding:8px 14px;border:1px solid var(--border);border-radius:var(--r-sm);font-size:13.5px;color:var(--muted);background:var(--surface)}
.nav-pagination .page-numbers.current{background:var(--primary);border-color:var(--primary);color:#fff}
.nav-pagination .page-numbers:hover{border-color:var(--border-strong);color:var(--text)}

/* ---------- 页脚 ---------- */
.site-foot{border-top:1px solid var(--border);background:var(--surface);padding:44px 0 26px;margin-top:auto}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px}
.foot-brand .foot-about{color:var(--muted);font-size:13.5px;margin:16px 0;max-width:42ch}
.foot-col h5{font-size:12.5px;text-transform:uppercase;letter-spacing:.1em;color:var(--faint);margin-bottom:16px}
.foot-col ul{list-style:none;margin:0;padding:0}
.foot-col li{margin:8px 0}
.foot-col a{font-size:13.5px;color:var(--muted)}
.foot-col a:hover{color:var(--primary)}
.foot-bottom{border-top:1px solid var(--border);margin-top:32px;padding-top:20px;font-size:12px;color:var(--faint);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ---------- 评论 ---------- */
.comments{margin-top:44px;border-top:1px solid var(--border);padding-top:32px}
.cmt-head{margin-bottom:20px}
.cmt-title{font-size:16px;font-weight:700;margin:0}
.cmt-title--form{margin-bottom:18px}

.cmt-list{list-style:none;margin:0 0 32px;padding:0;display:flex;flex-direction:column;gap:16px}
.cmt-list .children{list-style:none;margin:16px 0 0;padding:0 0 0 22px;display:flex;flex-direction:column;gap:16px;border-left:2px solid var(--line)}
.cmt-item{display:block}
.cmt-main{display:flex;gap:14px}
.cmt-avatar{flex-shrink:0}
.cmt-avatar img{width:44px;height:44px;border-radius:50%;display:block;background:var(--surface-2)}
.cmt-body{flex:1;min-width:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px}
.cmt-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.cmt-author{font-size:14px;font-weight:600;color:var(--text)}
.cmt-author a{color:inherit}
.cmt-author a:hover{color:var(--primary)}
.cmt-time{font-size:11.5px;color:var(--faint);font-family:var(--mono)}
.cmt-pending{font-size:11px;color:var(--warn);border:1px solid color-mix(in srgb,var(--warn) 40%,var(--border));border-radius:var(--r-pill);padding:1px 8px}
.cmt-text{font-size:14.5px;line-height:1.75;color:var(--text);overflow-wrap:anywhere}
.cmt-text p{margin:0 0 10px}
.cmt-text p:last-child{margin:0}
.cmt-actions{display:flex;align-items:center;gap:14px;margin-top:10px}
.cmt-actions a{font-size:12.5px;font-weight:600;color:var(--muted)}
.cmt-actions a:hover{color:var(--primary)}
.cmt-closed{font-size:13.5px;color:var(--muted);padding:14px 16px;background:var(--surface-2);border-radius:var(--radius)}

.cmt-form{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--e1)}
.cmt-logged{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);margin:0 0 18px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.cmt-logged b{color:var(--text)}
.cmt-logged a{color:var(--primary);font-weight:600}
.cmt-form .cmt-field{margin:0 0 14px}
.cmt-form .cmt-field label{display:block;font-size:12.5px;font-weight:600;color:var(--muted);margin-bottom:6px}
.cmt-form input[type=text],.cmt-form input[type=email],.cmt-form input[type=url],.cmt-form textarea{
	width:100%;border:1px solid var(--border);background:var(--surface-2);border-radius:var(--r-sm);
	padding:10px 13px;font:inherit;font-size:14px;color:var(--text);outline:0;transition:.15s;
}
.cmt-form input::placeholder,.cmt-form textarea::placeholder{color:var(--faint)}
.cmt-form input:focus,.cmt-form textarea:focus{border-color:var(--primary);background:var(--surface);box-shadow:0 0 0 3px var(--primary-soft)}
.cmt-form textarea{resize:vertical;min-height:110px;line-height:1.7}
.cmt-form .comment-form-cookies-consent{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin:0 0 16px}
.cmt-form .comment-form-cookies-consent input{width:auto}
.cmt-form .comment-form-cookies-consent label{margin:0;font-weight:400}
.cmt-submit-row{margin:0;display:flex;align-items:center;gap:14px}
.cmt-submit{cursor:pointer}
.comments-pagination{margin:0 0 32px}
.comments-pagination .nav-links{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.comments-pagination .page-numbers{padding:8px 14px;border:1px solid var(--border);border-radius:var(--r-sm);font-size:13.5px;color:var(--muted);background:var(--surface)}
.comments-pagination .page-numbers.current{background:var(--primary);border-color:var(--primary);color:#fff}
.comments-pagination .page-numbers:hover{border-color:var(--border-strong);color:var(--text)}
@media (max-width:600px){
  .cmt-list .children{padding-left:12px}
  .cmt-form{padding:18px}
  .cmt-item{gap:10px}
}

/* ---------- 投稿：价值说明 ---------- */
.submit-perks{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.submit-perk{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--e1)}
.submit-perk__ic{width:38px;height:38px;border-radius:var(--r-sm);display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,color-mix(in srgb,var(--primary) 80%,#fff),var(--primary));margin-bottom:12px}
.submit-perk h3{font-size:15px;margin-bottom:6px}
.submit-perk p{font-size:13px;color:var(--muted);line-height:1.65}

/* ---------- 投稿表单 ---------- */
.submit-form{max-width:720px}
.submit-form .req{color:var(--a-rose)}
.submit-tabs{display:flex;gap:6px;margin:0 0 20px;padding:5px;background:var(--surface-2);border:1px solid var(--border);border-radius:var(--r-pill)}
.submit-tab{flex:1;position:relative;text-align:center}
.submit-tab input{position:absolute;opacity:0;pointer-events:none}
.submit-tab span{display:block;font-size:13.5px;font-weight:600;color:var(--muted);padding:9px 12px;border-radius:var(--r-pill);cursor:pointer;transition:.15s}
.submit-tab input:checked + span{background:var(--surface);color:var(--text);box-shadow:var(--e1)}
.submit-tab input:focus-visible + span{box-shadow:0 0 0 3px var(--primary-soft)}
.submit-pane[hidden]{display:none}
.cmt-form select{width:100%;border:1px solid var(--border);background:var(--surface-2);border-radius:var(--r-sm);padding:10px 13px;font:inherit;font-size:14px;color:var(--text);outline:0;transition:.15s;cursor:pointer}
.cmt-form select:focus{border-color:var(--primary);background:var(--surface);box-shadow:0 0 0 3px var(--primary-soft)}
.submit-privacy{display:flex;align-items:flex-start;gap:8px;font-size:12.5px;line-height:1.6;color:var(--faint);margin:4px 0 18px}
.submit-privacy .ic{flex:0 0 auto;margin-top:2px}
.submit-note{display:flex;align-items:center;gap:10px;font-size:14px;border-radius:var(--radius);padding:14px 16px;margin:0 0 20px;max-width:720px;border:1px solid var(--border)}
.submit-note .ic{flex:0 0 auto}
.submit-note--ok{color:var(--a-green);background:color-mix(in srgb,var(--a-green) 10%,var(--surface));border-color:color-mix(in srgb,var(--a-green) 30%,var(--border))}
.submit-note--err{color:var(--a-rose);background:color-mix(in srgb,var(--a-rose) 10%,var(--surface));border-color:color-mix(in srgb,var(--a-rose) 30%,var(--border))}
.submit-hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.submit-hint{font-size:12.5px;color:var(--faint)}

/* ---------- 投稿：推广（署名 + 链接） ---------- */
.submit-promo{border:1px dashed var(--border-strong);border-radius:var(--radius);padding:16px;margin:4px 0 18px;background:var(--surface-2)}
.submit-promo__hint{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);margin:0 0 12px}
.submit-promo__hint .ic{color:var(--primary);flex:0 0 auto}
.submit-promo__grid{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}

/* ---------- 投稿：富文本编辑器 ---------- */
.submit-editor{display:none;border:1px solid var(--border);border-radius:var(--r-sm);background:var(--surface-2);overflow:hidden}
.submit-editor.is-active{display:block}
.submit-editor__bar{display:flex;align-items:center;gap:2px;padding:6px 8px;border-bottom:1px solid var(--border);background:var(--surface);flex-wrap:wrap}
.ed-btn{display:inline-flex;align-items:center;gap:5px;height:30px;min-width:30px;padding:0 7px;border:0;background:transparent;color:var(--muted);border-radius:var(--r-xs);cursor:pointer;font-size:13px;line-height:1;transition:.15s}
.ed-btn:hover{background:var(--surface-2);color:var(--text)}
.ed-btn b{font-weight:800}
.ed-btn i{font-style:italic;font-family:Georgia,serif}
.ed-btn .ic{width:15px;height:15px}
.ed-sep{width:1px;height:18px;background:var(--border);margin:0 4px}
.ed-img-hint{font-size:12.5px}
.ed-btn--img.is-loading{opacity:.55;pointer-events:none}
.submit-editor__area{min-height:220px;max-height:520px;overflow:auto;padding:14px 15px;font-size:14.5px;line-height:1.75;color:var(--text);outline:0}
.submit-editor__area:empty:before{content:attr(data-placeholder);color:var(--faint)}
.submit-editor__area p{margin:0 0 10px}
.submit-editor__area h3{font-size:16px;margin:14px 0 6px}
.submit-editor__area blockquote{margin:10px 0;padding:8px 14px;border-left:3px solid var(--primary);background:var(--surface);color:var(--muted);border-radius:0 var(--r-xs) var(--r-xs) 0}
.submit-editor__area ul,.submit-editor__area ol{margin:0 0 10px;padding-left:22px}
.submit-editor__area li{margin:3px 0}
.submit-editor__area a{color:var(--primary)}
.submit-editor__area img{max-width:100%;height:auto;border-radius:var(--r-sm);display:block;margin:10px 0}
.submit-editor__foot{padding:6px 12px;border-top:1px solid var(--border);background:var(--surface);font-size:11.5px;color:var(--faint);text-align:right}
.submit-editor__fallback.is-hidden{display:none}
@media (max-width:600px){
  .submit-promo__grid{grid-template-columns:1fr}
}

/* ---------- 阅读进度 ---------- */
.read-progress{position:fixed;top:0;left:0;height:3px;background:var(--primary);width:0;z-index:90;transition:width .1s linear}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .article-wrap{grid-template-columns:1fr}
  .article-side{display:none}
  .portal-tiles{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .app,.nav-sb-right .app{grid-template-columns:1fr}
  .sidebar{
    position:fixed;top:0;left:0;width:280px;height:100vh;transform:translateX(-102%);
    transition:transform .22s ease;box-shadow:var(--e3);
  }
  .sidebar.open{transform:translateX(0)}
  .nav-sb-right .sidebar{left:auto;right:0;transform:translateX(102%);border-left:1px solid var(--border);border-right:0}
  .nav-sb-right .sidebar.open{transform:translateX(0)}
  .hamburger{display:flex}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .site-cards.cols-3,.site-cards.cols-4{grid-template-columns:repeat(2,1fr)}
  .container{padding:0 18px}
  .topbar{padding:0 18px}
}
@media (max-width:600px){
  .grid-3,.portal-tiles,.site-cards.cols-2,.site-cards.cols-3,.site-cards.cols-4{grid-template-columns:1fr}
  .hero-stats{gap:24px}
  .series-nav{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .section{padding:30px 0}
  .hot-hero{grid-template-columns:1fr}
  .hot-hero__card--big{grid-row:auto;min-height:240px}
  .filter-panel .filterbar-search{align-self:stretch}
  .filter-panel .filterbar-search input[type=search]{min-width:0;width:100%}
  .filter-row{flex-direction:column;gap:8px}
  .filter-row__label{padding-top:0}
  .filterbar{grid-template-columns:1fr}
  .filterbar .filterbar-search{order:-1}
  .filterbar-search{justify-self:stretch}
  .filterbar-search input[type=search]{min-width:0;width:100%}
}

/* ---------- 无障碍：跳转链接 ---------- */
.skip-link{
  position:absolute;left:12px;top:-48px;z-index:60;
  background:var(--primary);color:#fff;font-size:13px;font-weight:600;
  padding:9px 16px;border-radius:var(--r-sm);text-decoration:none;transition:top .15s;
}
.skip-link:focus{top:12px;outline:2px solid #fff;outline-offset:2px}
.content:focus{outline:0}

/* ---------- 无障碍：尊重减少动效 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}