/* AI 每日速递 · 设计规范见 DESIGN.md（暖色纸感、衬线大标题、细线列表、深色页脚） */
:root{
  --bg:#faf9f5;--bg2:#f0eee6;--bg3:#e8e6dc;--card:#fff;
  --fg:#141413;--fg2:#5e5d59;--fg3:#87867f;--line:#e2dfd5;
  --accent:#c96442;--accent-bg:#f3e6df;--warn:#a5532a;--warnbg:#f6e7da;
  --foot:#141413;--foot-fg:#b0aea5;
  --serif:"Noto Serif SC","Source Han Serif SC","Noto Serif CJK SC","Songti SC","STSong",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Noto Sans CJK SC",system-ui,sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,"Noto Sans Mono CJK SC",monospace;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#141413;--bg2:#1f1e1d;--bg3:#30302e;--card:#1b1a19;
  --fg:#faf9f5;--fg2:#b0aea5;--fg3:#87867f;--line:#2f2e2b;
  --accent:#e08a68;--accent-bg:#3a261d;--warn:#e9a77f;--warnbg:#33241a;--foot:#0f0f0e;--foot-fg:#9c9a92}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.8 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-wrap:anywhere}
a{color:inherit;text-decoration:none}
p a,.prose a,.legal a{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;text-decoration-color:var(--fg3)}
p a:hover,.prose a:hover{color:var(--accent);text-decoration-color:var(--accent)}
button{font:inherit;color:inherit}
.frame{max-width:1200px;margin:0 auto;padding-left:40px;padding-right:40px}
.frame.narrow>*{max-width:880px}
.muted{color:var(--fg3)}.small{font-size:13px}

/* 导航 */
.top{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:saturate(160%) blur(10px)}
.bar{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:.02em;color:var(--fg);white-space:nowrap}
.mark{width:14px;height:14px;border-radius:3px;background:var(--accent);display:inline-block}
.mainnav{display:flex;gap:4px;margin-left:auto;overflow-x:auto;scrollbar-width:none;white-space:nowrap}
.mainnav::-webkit-scrollbar{display:none}
.mainnav a{padding:6px 12px;font-size:15px;color:var(--fg2);border-bottom:2px solid transparent;transition:color .15s}
.mainnav a:hover{color:var(--fg)}
.mainnav a.on{color:var(--fg);font-weight:600;border-bottom-color:var(--accent)}
.cta{padding:7px 16px;border-radius:8px;background:var(--fg);color:var(--bg);font-size:14px;font-weight:500;white-space:nowrap}
.cta:hover{opacity:.85}

/* 页头：左标题右说明 */
.pagehead{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding-top:64px;padding-bottom:40px;align-items:end}
.pagehead::after{content:"";grid-column:1/-1;height:1px;background:var(--line);margin-top:4px}
.eyebrow{margin:0 0 8px;font-size:13px;color:var(--fg2);letter-spacing:.04em}
h1{font-family:var(--serif);font-size:48px;line-height:1.2;font-weight:600;margin:0;letter-spacing:.01em}
.dek{margin:0 0 14px;font-size:17px;line-height:1.75;color:var(--fg2)}
.daypager{display:flex;gap:20px;align-items:center;font-size:14px;color:var(--fg2)}
.daypager a{color:var(--fg);border-bottom:1px solid var(--fg3)}
.daypager a:hover{color:var(--accent);border-color:var(--accent)}
.daypager .off{color:var(--fg3);opacity:.6}
.daypager .cur{color:var(--fg2)}
.daypager.bottom{justify-content:space-between;margin:40px 0 0;padding-top:20px;border-top:1px solid var(--line)}
.subnav{display:flex;gap:6px;margin:0 0 20px}
.subnav a{padding:4px 14px;border-radius:999px;font-size:14px;color:var(--fg2);background:var(--bg2)}
.subnav a:hover{color:var(--fg)}
.subnav a.on{background:var(--fg);color:var(--bg)}
h2.rule{font-family:var(--sans);font-size:15px;font-weight:600;letter-spacing:.06em;margin:56px 0 0;padding-bottom:12px;border-bottom:1px solid var(--fg)}

/* 今日速览 */

/* 列表行（模型/产品/论文/洞见） */
.list{padding-top:8px}
.row{display:grid;grid-template-columns:200px minmax(0,760px);gap:40px;padding:26px 0;border-bottom:1px solid var(--line);scroll-margin-top:90px}
.rmeta{font-size:13px;color:var(--fg2);display:flex;flex-direction:column;gap:2px;padding-top:4px}
.rmeta .src{color:var(--fg);font-weight:500}
.row h3{font-size:19px;line-height:1.5;font-weight:600;margin:0 0 6px}
.row h3 a:hover{color:var(--accent)}
.anchor{opacity:0;margin-left:8px;color:var(--fg3);font-weight:400}.row:hover .anchor{opacity:1}
.sum{margin:0;color:var(--fg2);font-size:16px;line-height:1.85}
.sum[lang=en]{font-size:15px}
.links{display:flex;flex-wrap:wrap;gap:4px 16px;margin:10px 0 0;font-size:13px;color:var(--fg3)}
.links a{text-decoration:none;color:var(--fg2)}
.links a:hover{color:var(--accent)}
.badge{font-size:12px;padding:0 8px;border-radius:999px;background:var(--bg2);color:var(--fg2)}
.badge.warn{background:var(--warnbg);color:var(--warn)}
.empty{color:var(--fg3);padding:40px 0}
:target{animation:hl 2s ease-out}
@keyframes hl{from{background:var(--accent-bg)}to{background:transparent}}

/* 掘金 */
.repos{margin-top:8px}
.rrow{display:grid;grid-template-columns:40px minmax(0,1fr) 110px 90px 90px;gap:20px;padding:20px 0;border-bottom:1px solid var(--line);align-items:baseline;scroll-margin-top:90px}
.rhead{font-size:12px;color:var(--fg3);letter-spacing:.06em;padding:10px 0;border-bottom:1px solid var(--fg)}
.rk{font-family:var(--serif);color:var(--fg3);font-size:18px}
.rmain .name{font-family:var(--mono);font-size:15px;font-weight:600;color:var(--fg)}
.rmain .name:hover{color:var(--accent)}
.rmain p{margin:4px 0 0;color:var(--fg2);font-size:15px;line-height:1.7}
.lang{font-size:13px;color:var(--fg2)}
.n{text-align:right;font-variant-numeric:tabular-nums;font-size:14px}
.n.up{color:var(--accent);font-weight:600}
.rhead .n{font-size:12px}

/* 动态：X 风格信息流 */
.avatar{width:44px;height:44px;border-radius:50%;background:var(--c);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;letter-spacing:-.02em;font-family:var(--sans)}
.phead{display:flex;flex-wrap:wrap;align-items:baseline;gap:0 6px;font-size:15px;line-height:1.5}
.pname{font-weight:700}
.phandle,.dot,.ptime{color:var(--fg3);font-size:14px}
.ptime:hover{text-decoration:underline}
.pbody{margin:4px 0 10px;font-size:16px;line-height:1.75}
.quote{display:block;border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin-bottom:6px;transition:background .15s}
.quote:hover{background:var(--bg2)}
.qdomain{display:block;font-size:12px;color:var(--fg3)}
.qtitle{display:block;font-size:14px;line-height:1.55;color:var(--fg);font-weight:500}
.pactions{display:flex;flex-wrap:wrap;align-items:center;gap:4px 16px;font-size:13px;color:var(--fg3);padding-top:4px}
.pactions a,.act{color:var(--fg2);background:none;border:0;padding:4px 0;cursor:pointer;font-size:13px}
.pactions a:hover,.act:hover{color:var(--accent)}
.ptype{margin-left:auto;font-size:12px;padding:1px 9px;border-radius:999px;background:var(--bg2);color:var(--fg2)}
.ptype.t-x{background:var(--fg);color:var(--bg)}
.ptype.t-pr{background:#e3ecf5;color:#3a5f8a}
@media (prefers-color-scheme:dark){.ptype.t-pr{background:#22303d;color:#9cbbe0}}

/* 往期、关于 */
.arch{list-style:none;padding:0;margin:0}
.arch a,.arch .off{display:grid;grid-template-columns:110px 70px 1fr auto;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}
.arch .off{color:var(--fg3)}.arch .off .tt{color:var(--fg3)}.arch .off .badge{align-self:center}
.arch a:hover .tt{color:var(--accent)}
.arch time{font-family:var(--serif);font-weight:600;font-size:17px}
.arch .wd{color:var(--fg3);font-size:14px;padding-top:2px}
.arch .tt{color:var(--fg2);font-size:15px}
.prose{padding-top:16px}
.prose h2{font-family:var(--serif);font-size:24px;font-weight:600;margin:40px 0 8px}
.prose p,.prose li{color:var(--fg2);line-height:1.9}
.prose ul{padding-left:1.2em}

/* 赞助、订阅 */
.sponsor{margin:40px 0 0;padding:14px 18px;border:1px dashed var(--line);border-radius:12px;font-size:14px;color:var(--fg2)}
.sponsor a{color:var(--accent)}
.sponsor .label{display:inline-block;font-size:12px;border:1px solid var(--fg3);border-radius:4px;padding:0 6px;margin-right:6px}
.subscribe{margin:24px 0 72px;padding:28px;border-radius:12px;background:var(--bg2)}
.subscribe h2{font-family:var(--serif);font-size:22px;font-weight:600;margin:0 0 4px}
.subscribe p{margin:0 0 14px;color:var(--fg2);font-size:15px}
.subscribe form{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.subscribe input{flex:1;min-width:200px;padding:10px 14px;border:1px solid var(--line);border-radius:8px;font:inherit;font-size:15px;background:var(--card);color:var(--fg)}
.subscribe button{padding:10px 20px;border:0;border-radius:8px;background:var(--fg);color:var(--bg);font-size:15px;cursor:pointer}
.subscribe .small{margin:0}

/* 页脚：深色 */
.foot{background:var(--foot);color:var(--foot-fg);margin-top:0;padding:56px 0 36px;font-size:14px}
.foot .cols{display:grid;grid-template-columns:2fr repeat(4,1fr);gap:32px}
.foot .fbrand a.logo{display:inline-flex;gap:10px;color:#faf9f5}
.foot .fbrand p{margin:12px 0 0;max-width:280px;line-height:1.7}
.foot h4{margin:0 0 12px;font-size:13px;color:#faf9f5;font-weight:600}
.foot .cols a{display:block;padding:3px 0;color:var(--foot-fg)}
.foot .cols a:hover{color:#faf9f5}
.foot .legal{margin-top:40px;padding-top:20px;border-top:1px solid #30302e;font-size:12px}
.foot .legal p{margin:0}

/* 响应式 */
@media (max-width:1000px){.foot .cols{grid-template-columns:repeat(2,1fr)}.foot .fbrand{grid-column:1/-1}}
@media (max-width:900px){
  .frame{padding-left:24px;padding-right:24px}
  .pagehead{grid-template-columns:1fr;gap:16px;padding-top:40px;padding-bottom:24px}
  h1{font-size:36px}
  .row{grid-template-columns:1fr;gap:4px;padding:22px 0}
  .rmeta{flex-direction:row;flex-wrap:wrap;gap:0 12px;padding:0}
  .rrow{grid-template-columns:28px minmax(0,1fr) 80px;gap:12px}
  .rrow .lang,.rhead span:nth-child(3),.rhead span:nth-child(4),.rrow>.n:not(.up){display:none}
}
@media (max-width:600px){
  .frame{padding-left:18px;padding-right:18px}
  .pagehead{padding-top:28px}
  .bar{flex-wrap:wrap;height:auto;padding-top:12px;padding-bottom:0;gap:6px 12px}
  .cta{margin-left:auto;padding:5px 12px;font-size:13px}
  .mainnav{order:3;flex:0 0 100%;margin:0 -6px;justify-content:space-between}
  .mainnav a{padding:8px 6px;font-size:15px}
  h1{font-size:32px}
  .dek{font-size:15px}
  .avatar{width:40px;height:40px;font-size:15px}
  .arch a,.arch .off{grid-template-columns:90px 1fr auto}.arch .wd{display:none}
  .foot .cols{grid-template-columns:1fr 1fr}
}

/* ===== 今日速览（首页） ===== */
.stats{list-style:none;margin:28px 0 0;padding:0;display:grid;grid-template-columns:repeat(6,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats li+li{border-left:1px solid var(--line)}
.stats a,.stats li>div{display:flex;flex-direction:column;padding:16px 20px;transition:background .15s}
.stats a:hover{background:var(--bg2)}
.stats b{font-family:var(--serif);font-size:32px;line-height:1.2;font-weight:600}
.stats span{font-size:13px;color:var(--fg2)}
.num{font-family:var(--serif);color:var(--accent);font-weight:600;line-height:1.2}
.bm{margin:8px 0 0;font-size:13px;color:var(--fg3);display:flex;flex-wrap:wrap;gap:2px 12px;line-height:1.6}
.bm a{text-decoration:none;color:var(--fg2)}
.bm a:hover{color:var(--accent)}
.bm .tag{color:var(--accent);font-weight:500}
.bm .ent{color:var(--fg);font-weight:500}
.bs{margin:8px 0 0;color:var(--fg2);font-size:15px;line-height:1.8}
.lead{display:grid;grid-template-columns:96px minmax(0,1fr);gap:8px;padding:32px 0;border-bottom:1px solid var(--line);scroll-margin-top:90px}
.lead .num{font-size:56px}
.lead .bm{margin:6px 0 10px}
.lead h3{font-family:var(--serif);font-size:34px;line-height:1.4;font-weight:600;margin:0;max-width:960px}
.lead h3 a:hover,.bgrid h3 a:hover{color:var(--accent)}
.lead .bs{font-size:17px;max-width:820px;margin-top:12px}
.bgrid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;column-gap:56px}
.bgrid li{display:grid;grid-template-columns:48px minmax(0,1fr);gap:4px;padding:26px 0;border-bottom:1px solid var(--line);scroll-margin-top:90px}
.bgrid .num{font-size:26px}
.bgrid h3{font-family:var(--serif);font-size:21px;line-height:1.5;font-weight:600;margin:0}
.hl{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:20px}
.hlbox{background:var(--bg2);border-radius:12px;padding:20px 22px 16px;display:flex;flex-direction:column}
.hlt{font-family:var(--serif);font-size:21px;font-weight:600;display:flex;align-items:baseline;gap:4px}
.hlt small{font-family:var(--sans);font-size:13px;color:var(--fg2);font-weight:400}
.hlt em{font-style:normal;font-family:var(--sans);font-size:13px;color:var(--fg3);font-weight:400;margin-left:4px}
.hlt:hover{color:var(--accent)}
.hlbox ol{list-style:none;margin:12px 0 0;padding:0;border-top:1px solid var(--line);flex:1}
.hlbox li{padding:10px 0;border-bottom:1px solid var(--line);font-size:15px;line-height:1.55;display:flex;flex-direction:column}
.hlbox li a:hover{color:var(--accent)}
.hlbox li span{font-size:12px;color:var(--fg3);margin-top:2px}
.mini-repos .rr{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.mini-repos code{font-family:var(--mono);font-size:13.5px;font-weight:600}
.mini-repos .up{color:var(--accent)!important;font-size:13px!important;font-weight:600;white-space:nowrap;font-variant-numeric:tabular-nums}
.more{font-size:13px;color:var(--fg2);margin-top:12px}
.more:hover{color:var(--accent)}

/* ===== 动态：X 风格信息流 + 右侧栏 ===== */
.feedlayout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
.feedmain{min-width:0;max-width:820px;scroll-margin-top:80px}
.chips{display:none;gap:8px;overflow-x:auto;scrollbar-width:none;padding:16px 0 12px;position:sticky;top:68px;z-index:5;background:var(--bg)}
.chips::-webkit-scrollbar{display:none}
.chip{flex:none;border:1px solid var(--line);background:transparent;border-radius:999px;padding:5px 14px;font-size:14px;cursor:pointer;color:var(--fg2)}
.chip small{color:var(--fg3);margin-left:4px}
.chip:hover{border-color:var(--fg3);color:var(--fg)}
.chip.on{background:var(--fg);border-color:var(--fg);color:var(--bg)}
.chip.on small{color:var(--bg);opacity:.7}
.feed{margin-top:8px}
.post{display:grid;grid-template-columns:44px minmax(0,1fr);gap:14px;padding:22px 4px 14px;border-bottom:1px solid var(--line);scroll-margin-top:90px}
.post[hidden]{display:none}
.avatar{width:44px;height:44px;border-radius:50%;background:var(--c);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;letter-spacing:-.02em;font-family:var(--sans)}
.pbody{margin:4px 0 12px;font-size:16px;line-height:1.8}
.quote{display:block;border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin-bottom:6px;background:color-mix(in srgb,var(--bg2) 35%,transparent);transition:background .15s}
.quote:hover{background:var(--bg2)}
.feednote{font-size:12px;color:var(--fg3);margin:14px 4px 0}
.side{position:sticky;top:88px;padding-top:8px;max-height:calc(100vh - 100px);overflow-y:auto;scrollbar-width:thin}
.sbox{padding:0 0 20px;margin-bottom:20px;border-bottom:1px solid var(--line)}
.sbox:last-child{border-bottom:0}
.sbox h2{font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--fg2);margin:0 0 10px}
.cofilter,.slinks,.sbrief{list-style:none;margin:0;padding:0}
.cofilter .chip{display:flex;align-items:center;gap:10px;width:100%;border:0;border-radius:8px;padding:6px 10px;font-size:14px;text-align:left;color:var(--fg)}
.cofilter .chip:hover{background:var(--bg2)}
.cofilter .chip.on{background:var(--bg3);color:var(--fg)}
.cofilter .chip.on small{color:var(--fg2);opacity:1}
.cofilter small{margin-left:auto;color:var(--fg3);font-variant-numeric:tabular-nums}
.dotc{width:10px;height:10px;border-radius:50%;background:var(--c);flex:none}
.sbrief{counter-reset:b}
.sbrief li{counter-increment:b;display:grid;grid-template-columns:24px 1fr;padding:6px 0;font-size:14px;line-height:1.55}
.sbrief li::before{content:counter(b,decimal-leading-zero);font-family:var(--serif);color:var(--accent);font-weight:600;font-size:13px;padding-top:1px}
.sbrief a:hover,.slinks a:hover{color:var(--accent)}
.slinks{display:grid;grid-template-columns:1fr 1fr;gap:4px 16px}
.slinks a{display:flex;justify-content:space-between;padding:4px 0;font-size:14px;border-bottom:1px solid var(--line)}
.slinks small{color:var(--fg3)}

@media (max-width:1100px){
  .stats{grid-template-columns:repeat(3,1fr)}
  .stats li:nth-child(4){border-left:0}
  .stats li:nth-child(n+4){border-top:1px solid var(--line)}
  .hl{grid-template-columns:1fr 1fr}
  .feedlayout{grid-template-columns:minmax(0,1fr);gap:0}
  .feedmain{max-width:none}
  .side{display:none}
  .chips{display:flex}
}
@media (max-width:900px){
  .bgrid{grid-template-columns:1fr}
  .lead{grid-template-columns:64px minmax(0,1fr)}
  .lead .num{font-size:40px}
  .lead h3{font-size:28px}
}
@media (max-width:600px){
  .stats{grid-template-columns:repeat(2,1fr);margin-top:20px}
  .stats li:nth-child(n){border-left:0;border-top:0}
  .stats li:nth-child(even){border-left:1px solid var(--line)}
  .stats li:nth-child(n+3){border-top:1px solid var(--line)}
  .stats a,.stats li>div{padding:12px 14px}
  .stats b{font-size:26px}
  .lead{grid-template-columns:1fr;gap:0;padding:24px 0}
  .lead .num{font-size:32px}
  .lead h3{font-size:24px}
  .lead .bs{font-size:16px}
  .bgrid li{grid-template-columns:40px minmax(0,1fr);padding:20px 0}
  .bgrid .num{font-size:22px}
  .bgrid h3{font-size:19px}
  .hl{grid-template-columns:1fr}
  .feedlayout.frame{padding-left:0;padding-right:0}
  .chips{top:92px;padding:12px 18px 10px}
  .post{padding:18px 18px 12px;grid-template-columns:40px minmax(0,1fr);gap:12px}
  .avatar{width:40px;height:40px;font-size:15px}
  .feednote{margin:12px 18px 0}
}

/* ===== 模型 / 产品：分面筛选列表（与动态共用布局与侧栏） ===== */
.frow{display:block;padding:26px 0 16px;border-bottom:1px solid var(--line);scroll-margin-top:90px}
.frow[hidden]{display:none}
.fhead{display:flex;flex-wrap:wrap;align-items:center;gap:2px 10px;font-size:14px;line-height:1.6}
.fhead .pname{font-size:14px;letter-spacing:.01em}
.fmeta{display:inline-flex;flex-wrap:wrap;align-items:center;gap:0 6px}
.ftitle{font-family:var(--serif);font-size:22px;line-height:1.45;font-weight:600;margin:8px 0 0}
.ftitle a:hover{color:var(--accent)}
.mid{display:inline-block;margin-top:4px;font-family:var(--mono);font-size:13px;color:var(--fg2);background:var(--bg2);border-radius:4px;padding:1px 7px}
.fsum{margin:8px 0 0;color:var(--fg2);font-size:15.5px;line-height:1.8}
.fsum[lang=en]{font-size:14.5px}
.kstats{list-style:none;margin:12px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.kstats li{font-size:12.5px;border:1px solid var(--line);border-radius:6px;padding:1px 8px;color:var(--fg);font-variant-numeric:tabular-nums;background:color-mix(in srgb,var(--bg2) 35%,transparent)}
.kstats li span{color:var(--fg3);margin-right:5px}
.kstats li.open{border-color:transparent;background:#e7eddd;color:#4f6b33}
.frow .pactions{margin-top:8px}
.tbadge{font-size:12px;line-height:1.6;padding:0 8px;border-radius:999px;font-weight:500}
.tbadge.t0,.tsq.t0{background:var(--accent-bg);color:var(--accent)}
.tbadge.t1,.tsq.t1{background:#e7eddd;color:#4f6b33}
.tbadge.t2,.tsq.t2{background:#e2ebf4;color:#3a5f8a}
.tbadge.t3,.tsq.t3{background:#f2e1e8;color:#9a4566}
@media (prefers-color-scheme:dark){
  .tbadge.t1,.tsq.t1,.kstats li.open{background:#26301d;color:#a9c48a}
  .tbadge.t2,.tsq.t2{background:#1f2c3a;color:#9cbbe0}
  .tbadge.t3,.tsq.t3{background:#3a2430;color:#e3a0bb}}
.tsq{width:10px;height:10px;border-radius:3px;flex:none;border:1px solid currentColor;opacity:.9}
.chipsep{flex:none;align-self:center;font-size:12px;color:var(--fg3);padding:0 2px 0 8px;border-left:1px solid var(--line);margin-left:4px}
.side .sall{display:block;width:100%;text-align:left;border:0;border-radius:8px;padding:6px 10px;font-size:14px;margin-bottom:6px}
.side .sall:not(.on){background:transparent;color:var(--fg)}
.side .sall.on{background:var(--bg3);color:var(--fg)}
.side .sbox h2+ul{margin-bottom:12px}
.side .sbox ul+h2{margin-top:14px}
.nores{color:var(--fg2);padding:32px 4px;font-size:15px}
.nores .act{color:var(--accent);text-decoration:underline}
@media (max-width:600px){
  .frow{padding:20px 18px 14px}
  .ftitle{font-size:18px}
  .fmeta{flex-basis:100%;line-height:1.5}
  .nores{padding:24px 18px}
}

/* =====================================================================
   质感层（v3）：纸纹、细线、排版节奏、配图融合、导航/页脚精修
   ===================================================================== */
:root{--line:#e6e2d7;--hair:color-mix(in srgb,var(--fg) 14%,transparent);--ease:cubic-bezier(.2,.7,.2,1)}
@media (prefers-color-scheme:dark){:root{--line:#2c2b28;--hair:color-mix(in srgb,var(--fg) 16%,transparent)}}
/* 纸纹：极淡的 SVG 噪点覆盖层（内联，无外部请求） */
body::after{content:"";position:fixed;inset:0;pointer-events:none;z-index:50;opacity:.38;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .08 0 0 0 0 .07 0 0 0 0 .05 0 0 0 .09 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
@media (prefers-color-scheme:dark){body::after{mix-blend-mode:screen;opacity:.22;filter:invert(1)}}
::selection{background:color-mix(in srgb,var(--accent) 22%,transparent)}

/* 排版：衬线大标题加字距，标签用小号字距大写感 */
h1{font-size:56px;line-height:1.15;letter-spacing:.03em}
.eyebrow,.kicker,h2.rule,.sbox h2,.hero-lead .label,.rhead,.foot h4{font-family:var(--sans);font-size:12px;font-weight:500;letter-spacing:.18em;color:var(--fg2);text-transform:uppercase}
h2.rule{margin:72px 0 0;padding-bottom:14px;border-bottom:1px solid var(--hair);display:flex;align-items:center;gap:12px}
h2.rule::before{content:"";width:18px;height:1px;background:var(--accent)}
.pagehead{position:relative;padding-top:80px;padding-bottom:48px}
.pagehead::after{background:var(--hair)}
.dek{letter-spacing:.01em}
.daypager a{border-bottom-color:var(--hair);transition:color .2s var(--ease),border-color .2s var(--ease)}

/* 导航：顶部透明，滚动后半透明磨砂 + 细线 */
.top{background:transparent;backdrop-filter:none;-webkit-backdrop-filter:none;border-bottom:1px solid transparent;transition:background .3s var(--ease),border-color .3s var(--ease),backdrop-filter .3s}
.top.scrolled{background:color-mix(in srgb,var(--bg) 78%,transparent);backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px);border-bottom-color:var(--hair)}
.mainnav a{position:relative;border-bottom:0;letter-spacing:.04em}
.mainnav a::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:1.5px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.mainnav a:hover::after{transform:scaleX(.35)}
.mainnav a.on::after{transform:scaleX(1)}
.cta{border-radius:999px;padding:7px 18px;letter-spacing:.06em;transition:opacity .2s,transform .2s var(--ease)}
.cta:hover{opacity:1;transform:translateY(-1px)}

/* 列表与卡片：更细的线、更从容的留白、柔和的悬停 */
.bgrid{column-gap:72px}
.bgrid li{padding:30px 0;border-bottom-color:var(--line)}
.bgrid h3 a,.ftitle a,.row h3 a,.hlbox li a,.sbrief a,.pbody,.hero-lead h2 a{transition:color .2s var(--ease)}
.hlbox{background:color-mix(in srgb,var(--bg2) 82%,transparent);border:1px solid color-mix(in srgb,var(--line) 70%,transparent);transition:background .25s var(--ease),transform .25s var(--ease)}
.hlbox:hover{background:var(--bg2);transform:translateY(-2px)}
.stats{border-color:var(--hair)}
.stats li+li{border-left-color:var(--line)}
.stats b{font-size:36px;letter-spacing:.01em;font-weight:500}
.stats span{letter-spacing:.06em}
.post,.frow,.row,.rrow{border-bottom-color:var(--line)}
.quote{transition:background .2s var(--ease),border-color .2s var(--ease)}
.quote:hover{border-color:var(--hair)}

/* 徽标统一：小号、字距、细描边 */
.badge,.tbadge,.ptype,.kstats li,.chip small{font-feature-settings:"tnum"}
.badge,.tbadge,.ptype{font-size:11.5px;letter-spacing:.04em;padding:1px 9px;border-radius:999px;line-height:1.7;box-shadow:inset 0 0 0 1px color-mix(in srgb,currentColor 14%,transparent)}
.chip{transition:background .2s var(--ease),border-color .2s var(--ease),color .2s}

/* 首页大图 hero：图片 multiply 融入纸色，左/下边缘渐隐 */
.hero{position:relative;overflow:hidden;margin-top:-69px;padding-top:69px}
.hero-art{position:absolute;top:0;right:min(-24px,calc((100vw - 1200px) / 2 - 150px));height:min(100%,860px);aspect-ratio:784/1168;mix-blend-mode:multiply;pointer-events:none;
  -webkit-mask-image:linear-gradient(to right,transparent 0,#000 26%,#000 90%,transparent 100%),linear-gradient(to top,transparent 0,#000 22%,#000 76%,transparent 100%);-webkit-mask-composite:source-in;
  mask-image:linear-gradient(to right,transparent 0,#000 26%,#000 90%,transparent 100%),linear-gradient(to top,transparent 0,#000 22%,#000 76%,transparent 100%);mask-composite:intersect}
.hero-art img{display:block;width:100%;height:100%;object-fit:cover;object-position:left top}
.hero-in{position:relative;min-height:720px;display:flex;align-items:center}
.hero-text{position:relative;z-index:2;max-width:620px;padding:56px 0 72px}
.kicker{margin:0 0 18px;display:flex;gap:0;align-items:center;color:var(--accent)}
.kicker span{color:var(--fg2)}
.kicker span::before{content:"";display:inline-block;width:4px;height:4px;border-radius:50%;background:var(--fg3);margin:0 12px;vertical-align:middle}
.hero-title{font-size:104px;line-height:1.02;letter-spacing:.06em;font-weight:600;margin:0 0 0 -4px}
.hero-dek{font-size:18px;color:var(--fg2);margin:22px 0 0;letter-spacing:.02em}
.hero-lead{margin:44px 0 0;padding:26px 0 0;border-top:1px solid var(--hair);max-width:560px;scroll-margin-top:90px}
.hero-lead .label{margin:0 0 10px;color:var(--accent)}
.hero-lead h2{font-family:var(--serif);font-size:30px;line-height:1.42;font-weight:600;margin:0;letter-spacing:.015em}
.hero-lead h2 a:hover{color:var(--accent)}
.hero-lead .bs{font-size:16px;margin-top:12px}
.hero .daypager{margin-top:30px}
.home .stats{margin-top:0}
@media (prefers-color-scheme:dark){.hero-art,.phart,.subart{mix-blend-mode:screen;filter:invert(1) hue-rotate(180deg) saturate(.8);opacity:.7}}

/* 栏目页头右侧：花与指尖的淡化细节 */
.phart{position:absolute;right:0;bottom:6px;width:220px;opacity:.26;mix-blend-mode:multiply;pointer-events:none;
  -webkit-mask-image:radial-gradient(closest-side,#000 45%,transparent);mask-image:radial-gradient(closest-side,#000 45%,transparent)}
.phart img{display:block;width:100%;height:auto}
.ph-right{position:relative;z-index:1}
@media (min-width:1101px){.phart~.ph-right{padding-right:230px}}

/* 订阅卡片：右侧细节图 */
.subscribe{position:relative;overflow:hidden;padding:36px 36px 30px;border:1px solid color-mix(in srgb,var(--line) 70%,transparent)}
.subscribe h2{font-size:26px;letter-spacing:.03em}
.subbody{position:relative;z-index:1;max-width:520px}
.subart{position:absolute;right:-10px;top:50%;transform:translateY(-50%);width:340px;mix-blend-mode:multiply;opacity:.75;pointer-events:none;
  -webkit-mask-image:radial-gradient(closest-side,#000 25%,transparent 92%);mask-image:radial-gradient(closest-side,#000 25%,transparent 92%)}
.subart img{display:block;width:100%;height:auto}
.subscribe input{transition:border-color .2s,box-shadow .2s}
.subscribe input:focus{outline:0;border-color:var(--fg3);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 14%,transparent)}
.subscribe button{border-radius:999px;letter-spacing:.04em}
.sponsor{border-style:solid;border-color:var(--line)}

/* 页脚：大号衬线陈述 + 细线栅格 */
.foot{padding:72px 0 40px;position:relative}
.fstate{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;padding-bottom:40px;margin-bottom:44px;border-bottom:1px solid #2c2b28}
.fstate p{margin:0;font-family:var(--serif);font-size:40px;line-height:1.3;letter-spacing:.04em;color:#faf9f5;font-weight:500}
.fcta{color:#faf9f5;border:1px solid #4a4945;border-radius:999px;padding:8px 20px;font-size:14px;letter-spacing:.06em;white-space:nowrap;transition:background .2s,color .2s}
.fcta:hover{background:#faf9f5;color:#141413}
.foot h4{color:#87867f;margin-bottom:14px}
.foot .cols a{transition:color .2s}
.foot .legal{border-top-color:#2c2b28;color:#87867f}

@media (max-width:1100px){
  .hero-art{height:min(100%,640px);right:-60px}
  .hero-in{min-height:640px}
  .hero-text{max-width:calc(100% - 340px)}
  .hero-title{font-size:84px}
}
@media (max-width:900px){
  .phart{display:none}
  .hero-text{max-width:calc(100% - 260px)}
  .hero-art{height:520px;right:-90px}
  .fstate p{font-size:30px}
}
@media (max-width:760px){
  .hero{margin-top:0;padding-top:0}
  .hero-art{position:relative;right:auto;top:auto;width:100%;height:340px;aspect-ratio:auto;display:block;
    -webkit-mask-image:linear-gradient(to top,transparent 0,#000 30%);mask-image:linear-gradient(to top,transparent 0,#000 30%);-webkit-mask-composite:source-over;mask-composite:add}
  .hero-art img{object-position:50% 66%}
  .hero-in{min-height:0;display:block}
  .hero-text{max-width:none;padding:0 0 40px;margin-top:-28px}
  .hero-title{font-size:56px;letter-spacing:.05em}
  .hero-dek{font-size:16px;margin-top:14px}
  .hero-lead{margin-top:28px;padding-top:20px}
  .hero-lead h2{font-size:23px}
  .subart{width:200px;right:-50px;opacity:.5;top:auto;bottom:-30px;transform:none}
}
@media (max-width:600px){
  h1{font-size:36px}
  .pagehead{padding-top:32px;padding-bottom:28px}
  h2.rule{margin-top:56px}
  .fstate{flex-direction:column;align-items:flex-start}
  .fstate p{font-size:26px}
  .subscribe{padding:26px 22px}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important}}

/* 栏目页正文背后的居中水印（v4）：fixed 固定在视口中央、z-index 低于内容，
   低透明度 + multiply 融入纸色，四周径向渐隐；混合与遮罩放在同一个元素上（父级不能隔离） */
.wm{position:fixed;z-index:-1;left:50%;top:calc(50% + 34px);transform:translate(-50%,-50%);width:min(560px,46vw,calc((100vh - 120px) * 784 / 1168));
  opacity:.1;mix-blend-mode:multiply;pointer-events:none;user-select:none;
  -webkit-mask-image:radial-gradient(closest-side,#000 52%,transparent 100%);mask-image:radial-gradient(closest-side,#000 52%,transparent 100%)}
.wm img{display:block;width:100%;height:auto}
@media (max-width:760px){.wm{width:min(80vw,340px);opacity:.08}}
@media (prefers-color-scheme:dark){.wm{mix-blend-mode:screen;filter:invert(1) hue-rotate(180deg) saturate(.6);opacity:.06}}
@media (prefers-color-scheme:dark) and (max-width:760px){.wm{opacity:.045}}
@media print{.wm{display:none}}
/* 筛选条：未吸顶时透明（不遮挡背后的水印），吸顶后磨砂 */
.chips{background:transparent;transition:background .25s var(--ease)}
.chips.stuck{background:color-mix(in srgb,var(--bg) 82%,transparent);-webkit-backdrop-filter:saturate(160%) blur(14px);backdrop-filter:saturate(160%) blur(14px)}