:root{
  --bg:#080b12;
  --bg-2:#0b101b;
  --panel:#101624;
  --panel-2:#141c2e;
  --line:rgba(255,255,255,.075);
  --line-2:rgba(255,255,255,.14);
  --ink:#f1f4fb;
  --ink-2:#a7b0c5;
  --ink-3:#6f7a91;
  --indigo:#7c8cf8;
  --indigo-2:#9aa7ff;
  --gold:#d9b06c;
  --gold-2:#efd09a;
  --teal:#4fc3a1;
  --rose:#e8798f;
  --serif:"Songti SC","STSong","Noto Serif SC","Source Han Serif SC",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 24px 60px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
img{display:block;max-width:100%}
/* hidden 必须真的不渲染：-inline-flex 等 display 规则会盖掉浏览器默认值 */
[hidden]{display:none!important}
::selection{background:rgba(124,140,248,.35);color:#fff}
:focus-visible{outline:2px solid var(--indigo);outline-offset:3px;border-radius:4px}

/* ---------- 氛围背景 ---------- */
.ambient{
  position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(900px 620px at 12% -8%, rgba(124,140,248,.18), transparent 62%),
    radial-gradient(760px 520px at 96% 18%, rgba(79,195,161,.10), transparent 60%),
    radial-gradient(700px 500px at 50% 110%, rgba(217,176,108,.08), transparent 62%),
    linear-gradient(180deg,#080b12 0%,#090d16 55%,#080b12 100%);
}
.ambient::after{
  content:"";position:absolute;inset:0;opacity:.16;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}
.progress{position:fixed;left:0;top:0;height:2px;width:0;z-index:60;background:linear-gradient(90deg,var(--indigo),var(--gold));box-shadow:0 0 18px rgba(124,140,248,.6)}

/* ---------- 顶栏 ---------- */
.site-head{position:sticky;top:0;z-index:40;border-bottom:1px solid transparent;transition:background .3s var(--ease),border-color .3s var(--ease)}
.site-head.solid{background:rgba(8,11,18,.78);backdrop-filter:blur(18px) saturate(1.2);border-color:var(--line)}
.head-in{max-width:1240px;margin:0 auto;height:74px;padding:0 32px;display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{color:var(--ink);display:grid;place-items:center;width:34px;height:34px;flex-shrink:0}
.brand-mark img{width:32px;height:32px;border-radius:9px;border:1px solid rgba(255,255,255,.22);box-shadow:0 4px 14px rgba(0,0,0,.35)}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-text b{font-size:17px;letter-spacing:.5px}
.brand-text em{font-style:normal;font-size:10px;letter-spacing:2.4px;color:var(--ink-3);margin-top:4px;text-transform:uppercase}
.head-nav{display:flex;gap:26px;font-size:14px;color:var(--ink-2)}
.head-nav a{position:relative;padding:6px 0;transition:color .2s;white-space:nowrap}
.head-nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--gold);transition:right .28s var(--ease)}
.head-nav a:hover{color:var(--ink)}
.head-nav a:hover::after{right:0}
.search-trigger{margin-left:auto;display:flex;align-items:center;gap:10px;height:38px;padding:0 12px 0 14px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--ink-3);font-size:13px;transition:border-color .2s,background .2s}
.search-trigger span{white-space:nowrap}
.search-trigger:hover{border-color:var(--line-2);background:rgba(255,255,255,.055);color:var(--ink-2)}
.search-trigger kbd{margin-left:18px;font-family:var(--sans);font-size:11px;border:1px solid var(--line-2);border-radius:5px;padding:1px 6px;color:var(--ink-3)}
.head-status{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--ink-3);white-space:nowrap}
.head-status i{width:6px;height:6px;border-radius:50%;background:var(--teal);box-shadow:0 0 10px rgba(79,195,161,.9)}

/* ---------- 通用 ---------- */
.view{max-width:1240px;margin:0 auto;padding:0 32px}
.eyebrow,.section-eyebrow{display:flex;align-items:center;gap:12px;font-size:11px;letter-spacing:2.4px;color:var(--gold);text-transform:uppercase}
.eyebrow-line{width:34px;height:1px;background:linear-gradient(90deg,var(--gold),transparent)}
.section{padding:96px 0 20px;scroll-margin-top:80px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:34px}
.section-head h2{font-family:var(--serif);font-size:38px;font-weight:600;margin:12px 0 0;letter-spacing:1px}
.section-head p{max-width:380px;margin:0;font-size:14px;line-height:1.75;color:var(--ink-3)}
.btn{display:inline-flex;align-items:center;gap:9px;height:48px;padding:0 22px;border-radius:12px;font-size:14px;font-weight:600;transition:transform .2s var(--ease),background .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px)}
.btn svg{transition:transform .2s var(--ease)}
.btn-primary{background:linear-gradient(135deg,var(--indigo),#5f6fe0);color:#fff;box-shadow:0 14px 34px rgba(124,140,248,.28)}
.btn-primary:hover svg{transform:translateX(3px)}
.btn-ghost{border:1px solid var(--line-2);color:var(--ink-2);background:rgba(255,255,255,.025)}
.btn-ghost:hover{color:var(--ink);background:rgba(255,255,255,.06)}
.skeleton{background:linear-gradient(100deg,rgba(255,255,255,.045) 25%,rgba(255,255,255,.1) 40%,rgba(255,255,255,.045) 55%);background-size:220% 100%;animation:shimmer 1.4s linear infinite}
@keyframes shimmer{to{background-position:-220% 0}}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- Hero ---------- */
.hero{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:64px;align-items:center;min-height:calc(100vh - 74px);padding:56px 0 80px}
.hero-copy h1{font-family:var(--serif);font-size:clamp(46px,5.2vw,74px);line-height:1.14;font-weight:600;letter-spacing:2px;margin:26px 0 24px}
.hero-copy h1 em{font-style:normal;color:var(--gold-2);position:relative}
.hero-copy h1 em::after{content:"";position:absolute;left:2px;right:2px;bottom:6px;height:1px;background:linear-gradient(90deg,rgba(217,176,108,.7),transparent)}
.hero-sub{font-size:16px;line-height:1.9;color:var(--ink-2);margin:0;max-width:520px}
.hero-actions{display:flex;gap:14px;margin-top:38px}
.hero-stats{display:flex;gap:46px;margin:54px 0 0;padding-top:26px;border-top:1px solid var(--line)}
.hero-stats div{display:flex;flex-direction:column;gap:6px}
.hero-stats dt{font-size:12px;color:var(--ink-3);letter-spacing:1px}
.hero-stats dd{margin:0;font-size:13px;color:var(--ink-3)}
.hero-stats b{font-family:var(--serif);font-size:30px;color:var(--ink);font-weight:600;margin-right:3px}
.hero-feature{position:relative;display:block;aspect-ratio:4/5;border-radius:22px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:var(--panel);isolation:isolate}
.hero-feature .hf-skeleton{position:absolute;inset:0}
.hero-feature img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.hero-feature:hover img{transform:scale(1.035)}
.hero-feature::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,8,14,.62) 0%,rgba(5,8,14,.22) 26%,rgba(5,8,14,.10) 42%,rgba(5,8,14,.82) 76%,#080b12 100%)}
.hf-top{position:absolute;top:22px;left:22px;right:22px;display:flex;justify-content:space-between;z-index:2;font-size:11px;letter-spacing:1.6px;color:rgba(255,255,255,.75)}
.hf-badge{display:inline-flex;align-items:center;gap:7px;padding:6px 11px;border-radius:999px;background:rgba(8,11,18,.5);border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(8px)}
.hf-badge i{width:5px;height:5px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold)}
.hf-body{position:absolute;left:26px;right:26px;bottom:26px;z-index:2}
.hf-cat{font-size:12px;letter-spacing:1.4px;color:var(--gold-2);margin-bottom:12px}
.hf-title{font-family:var(--serif);font-size:27px;line-height:1.42;font-weight:600;margin:0 0 12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hf-line{font-size:14px;line-height:1.7;color:rgba(255,255,255,.72);margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hf-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:rgba(255,255,255,.55);min-width:0}
.hf-meta span{white-space:nowrap}
.hf-meta > span:first-child{max-width:48%;overflow:hidden;text-overflow:ellipsis}
.hf-meta .dot{width:3px;height:3px;border-radius:50%;background:currentColor;flex-shrink:0}
.hf-go{margin-left:auto;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);transition:background .2s,transform .2s}
.hero-feature:hover .hf-go{background:var(--gold);color:#241a07;transform:rotate(-45deg)}
.hero-rail{position:absolute;right:-26px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;align-items:center;gap:16px;font-size:9px;letter-spacing:3px;color:var(--ink-3);writing-mode:vertical-rl}
.rail-line{width:1px;height:64px;background:linear-gradient(180deg,transparent,var(--line-2),transparent)}

/* ---------- 本周精选 ---------- */
.picks{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:206px;gap:18px}
.pick{position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line);background:var(--panel);display:flex;flex-direction:column;justify-content:flex-end;padding:22px;isolation:isolate;transition:border-color .25s,transform .25s var(--ease)}
.pick:hover{border-color:var(--line-2);transform:translateY(-3px)}
.pick img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .9s var(--ease)}
.pick::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(8,11,18,.05) 0%,rgba(8,11,18,.55) 52%,rgba(8,11,18,.94) 100%)}
.pick:first-child{grid-column:span 2;grid-row:span 2;padding:30px}
.pick-cat{font-size:11px;letter-spacing:1.4px;color:var(--gold-2);margin-bottom:9px}
.pick-title{font-family:var(--serif);font-size:19px;line-height:1.45;margin:0 0 8px;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pick:first-child .pick-title{font-size:30px;margin-bottom:12px}
.pick-line{font-size:12.5px;line-height:1.65;color:rgba(255,255,255,.65);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pick-foot{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:11px;color:rgba(255,255,255,.48)}
.pick-score{margin-left:auto;display:inline-flex;align-items:center;gap:5px;color:var(--gold-2)}
.pick-score svg{width:12px;height:12px}
.picks.for-you{grid-template-columns:repeat(3,1fr);grid-auto-rows:238px}
.picks.for-you .pick:first-child{grid-column:auto;grid-row:auto;padding:22px}
.picks.for-you .pick:first-child .pick-title{font-size:20px;margin-bottom:8px}

/* ---------- 主题 ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;align-items:stretch}
.topic-domain{position:relative;border:1px solid var(--line);border-radius:20px;padding:30px;background:linear-gradient(160deg,rgba(255,255,255,.045),rgba(255,255,255,.012));overflow:hidden}
.topic-domain::before{content:"";position:absolute;right:-60px;top:-80px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,var(--tc,rgba(124,140,248,.22)),transparent 68%)}
.topic-domain h3{font-family:var(--serif);font-size:26px;margin:0 0 8px;font-weight:600}
.topic-domain .topic-en{display:block;margin:0 0 8px;font-size:11px;letter-spacing:1.4px;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
.topic-domain p{margin:0 0 22px;font-size:13px;line-height:1.7;color:var(--ink-3);max-width:420px}
.topic-chips{display:flex;flex-wrap:wrap;gap:9px}
.topic-chip{display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 13px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:12.5px;color:var(--ink-2);transition:border-color .2s,color .2s,background .2s}
.topic-chip:hover{border-color:var(--line-2);color:var(--ink);background:rgba(255,255,255,.06)}
.topic-chip i{width:6px;height:6px;border-radius:50%;background:var(--cc)}
.topic-chip span{color:var(--ink-3);font-size:11px}
.topic-count{position:absolute;right:28px;bottom:22px;font-family:var(--serif);font-size:52px;color:rgba(255,255,255,.06);line-height:1}

/* ---------- 过滤 ---------- */
.filters{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:22px}
.filter-row{display:flex;flex-wrap:wrap;gap:8px}
.filter-row.sub{flex:1;min-width:260px}
.fchip{height:34px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.025);font-size:13px;color:var(--ink-3);display:inline-flex;align-items:center;gap:7px;transition:all .2s}
.fchip:hover{color:var(--ink-2);border-color:var(--line-2)}
.fchip.on{background:rgba(124,140,248,.14);border-color:rgba(124,140,248,.45);color:var(--indigo-2);font-weight:600}
.fchip i{width:6px;height:6px;border-radius:50%;background:var(--cc,var(--indigo))}
.fchip span{font-size:11px;opacity:.6}
.sort-box{display:flex;border:1px solid var(--line);border-radius:9px;overflow:hidden;margin-left:auto}
.sort-btn{padding:7px 12px;font-size:12px;color:var(--ink-3)}
.sort-btn.on{background:rgba(255,255,255,.08);color:var(--ink)}

/* ---------- 列表 ---------- */
.feed{border-top:1px solid var(--line)}
.feed-row{display:grid;grid-template-columns:56px 1fr 116px;gap:22px;align-items:center;padding:24px 10px;border-bottom:1px solid var(--line);transition:background .2s,padding .2s var(--ease)}
.feed-row:hover{background:rgba(255,255,255,.022);padding-left:18px;padding-right:18px}
/* 列表左侧：分类专属封面小图 + 序号角标（让 12 类内容一眼可辨，而不是纯文字罗列） */
.feed-thumb{position:relative;width:56px;aspect-ratio:3/4;border-radius:10px;overflow:hidden;border:1px solid var(--line);background:rgba(255,255,255,.03)}
.feed-thumb img{width:100%;height:100%;object-fit:cover;opacity:.9;transition:transform .5s var(--ease)}
.feed-row:hover .feed-thumb img{transform:scale(1.06)}
.feed-thumb span{position:absolute;left:4px;top:3px;font-family:var(--serif);font-size:10px;letter-spacing:.6px;color:#fff;text-shadow:0 1px 5px rgba(0,0,0,.9)}
.feed-cat{font-size:11px;letter-spacing:1.2px;color:var(--cc);margin-bottom:8px;display:flex;align-items:center;gap:7px}
.feed-cat i{width:5px;height:5px;border-radius:50%;background:var(--cc)}
/* 「全文精读」徽标：读过开放获取全文的论文，比只读摘要的多一档可信度 */
.ft-tag{margin-left:8px;padding:2px 7px;border-radius:999px;font-size:10px;letter-spacing:.6px;
  color:#9FE6C8;background:rgba(79,195,161,.12);border:1px solid rgba(79,195,161,.28);white-space:nowrap}
.feed-title{font-family:var(--serif);font-size:21px;line-height:1.4;font-weight:600;margin:0 0 7px;transition:color .2s}
.feed-row:hover .feed-title{color:var(--indigo-2)}
.feed-line{font-size:13px;line-height:1.65;color:var(--ink-3);margin:0;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.feed-line b{color:var(--ink-2);font-weight:400}
.feed-right{text-align:right;font-size:11.5px;color:var(--ink-3);line-height:1.9}
.feed-right .score{color:var(--gold-2);display:inline-flex;align-items:center;gap:4px}
.feed-right .score svg{width:11px;height:11px}
.feed-more{display:flex;justify-content:center;padding:34px 0 8px}
.feed-more[hidden],.feed-more:has(#loadMore[hidden]){display:none}
.feed-empty{padding:70px 0;text-align:center;color:var(--ink-3);font-size:14px;line-height:2}

/* ---------- Manifesto ---------- */
.manifesto{position:relative;padding:110px 0 60px;overflow:hidden}
.manifesto::before{content:"";position:absolute;inset:0;background:url(/static/images/hero-atlas.jpg) center 42%/cover;opacity:.14;filter:saturate(.85);pointer-events:none}
.manifesto::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,var(--bg) 0%,rgba(8,11,18,.55) 35%,var(--bg) 100%);pointer-events:none}
.manifesto-in{position:relative;z-index:1;border-top:1px solid var(--line);padding-top:44px}
.manifesto h2{font-family:var(--serif);font-size:36px;line-height:1.45;font-weight:600;margin:14px 0 40px}
.manifesto-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.manifesto-grid div{border-top:1px solid var(--line);padding-top:18px}
.manifesto-grid span{font-family:var(--serif);font-size:13px;color:var(--gold);letter-spacing:1px}
.manifesto-grid b{display:block;margin:12px 0 10px;font-size:15px}
.manifesto-grid p{margin:0;font-size:13px;line-height:1.8;color:var(--ink-3)}

/* ---------- 详情页 ---------- */
.paper{max-width:1080px;margin:0 auto;padding:46px 0 80px}
.paper-back{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:30px}
.paper-back:hover{color:var(--ink)}
.paper-kicker{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:12px;color:var(--ink-3);margin-bottom:20px}
.paper-kicker .cat{color:var(--cc);font-weight:600;letter-spacing:1px}
.paper-kicker .dot{width:3px;height:3px;border-radius:50%;background:var(--ink-3)}
.paper h1{font-family:var(--serif);font-size:clamp(34px,4vw,52px);line-height:1.3;font-weight:600;letter-spacing:1px;margin:0 0 14px}
.paper .title-en{font-size:15px;line-height:1.7;color:var(--ink-3);margin:0 0 26px}
.paper .one-liner{font-size:20px;line-height:1.75;color:var(--gold-2);border-left:2px solid var(--gold);padding-left:18px;margin:0 0 30px}
.paper-cover{position:relative;height:360px;border-radius:20px;overflow:hidden;border:1px solid var(--line);margin:0 0 46px}
.paper-cover img{width:100%;height:100%;object-fit:cover;object-position:center 22%}
.paper-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,11,18,.12),rgba(8,11,18,.62))}
.paper-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px}
.ai-panel{border:1px solid rgba(124,140,248,.24);background:linear-gradient(160deg,rgba(124,140,248,.10),rgba(255,255,255,.018));border-radius:18px;padding:28px;margin-bottom:44px}
.ai-head{display:flex;align-items:center;gap:10px;font-size:11px;letter-spacing:2px;color:var(--indigo-2);margin-bottom:18px}
.ai-head svg{width:16px;height:16px}
.ai-summary{font-size:16px;line-height:2;color:var(--ink);margin:0 0 22px;white-space:pre-wrap;word-break:break-word}
.ai-points{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.ai-points li{display:grid;grid-template-columns:22px 1fr;gap:10px;font-size:14px;line-height:1.75;color:var(--ink-2)}
.ai-points b{font-family:var(--serif);color:var(--gold);font-weight:500;font-size:13px}
.paper-section{margin-bottom:36px}
.paper-section h3{font-size:12px;letter-spacing:2px;color:var(--ink-3);text-transform:uppercase;margin:0 0 14px;display:flex;align-items:center;gap:10px}
.paper-section h3::after{content:"";flex:1;height:1px;background:var(--line)}
.paper-section p{font-size:15px;line-height:1.95;color:var(--ink-2);margin:0}
.paper-section .en{font-size:13.5px;line-height:2;color:var(--ink-3)}
.abstract-toggle{font-size:13px;color:var(--indigo-2);cursor:pointer;display:inline-flex;align-items:center;gap:6px;list-style:none}
.abstract-toggle::-webkit-details-marker{display:none}
.abstract-toggle::after{content:"+";font-size:15px;color:var(--ink-3);transition:transform .2s}
details[open] .abstract-toggle::after{content:"−"}
details[open] .abstract-toggle{color:var(--ink-2)}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{height:30px;display:inline-flex;align-items:center;padding:0 12px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:12px;color:var(--ink-2)}
.paper-side{position:sticky;top:98px;align-self:start}
.side-box{border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.02);padding:22px;margin-bottom:16px}
.side-box h4{margin:0 0 16px;font-size:11px;letter-spacing:2px;color:var(--ink-3)}
.side-meta{display:flex;flex-direction:column;gap:13px;font-size:13px}
.side-meta div{display:flex;justify-content:space-between;gap:14px}
.side-meta span{color:var(--ink-3);flex-shrink:0}
.side-meta b{font-weight:500;color:var(--ink-2);text-align:right;line-height:1.6;white-space:nowrap;overflow-wrap:anywhere}
.side-meta div:nth-child(7) b{white-space:normal;word-break:break-all;font-size:12px}
.side-authors{font-size:13px;line-height:1.9;color:var(--ink-2);max-height:140px;overflow:auto}
.side-actions{display:flex;flex-direction:column;gap:9px}
.side-btn{display:flex;align-items:center;justify-content:space-between;height:42px;padding:0 14px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:13px;color:var(--ink-2);transition:border-color .2s,color .2s}
.side-btn:hover{border-color:var(--line-2);color:var(--ink)}
.side-btn svg{width:15px;height:15px;color:var(--ink-3)}
.related{padding-top:20px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.related-card{border:1px solid var(--line);border-radius:14px;padding:18px;background:rgba(255,255,255,.02);transition:border-color .2s,transform .2s var(--ease)}
.related-card:hover{border-color:var(--line-2);transform:translateY(-2px)}
.related-card .rc-cat{font-size:10px;letter-spacing:1px;color:var(--cc);margin-bottom:10px}
.related-card h4{font-family:var(--serif);font-size:16px;line-height:1.5;margin:0 0 8px;font-weight:600}
.related-card p{margin:0;font-size:12px;line-height:1.6;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 搜索页 ---------- */
.search-page{max-width:900px;margin:0 auto;padding:64px 0 90px;min-height:60vh}
.search-page h1{font-family:var(--serif);font-size:40px;margin:0 0 24px;font-weight:600}
.search-field{display:flex;align-items:center;gap:12px;height:58px;padding:0 18px;border:1px solid var(--line-2);border-radius:14px;background:rgba(255,255,255,.035);transition:border-color .2s,box-shadow .2s}
.search-field:focus-within{border-color:rgba(124,140,248,.6);box-shadow:0 0 0 4px rgba(124,140,248,.1)}
.search-field input{flex:1;border:0;background:none;outline:none;font-size:16px;color:var(--ink)}
.search-field input::placeholder{color:var(--ink-3)}
.search-meta{display:flex;align-items:center;gap:12px;margin:26px 0 18px;font-size:12px;color:var(--ink-3)}
.search-hot{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.search-hot button{height:32px;padding:0 12px;border-radius:999px;border:1px solid var(--line);font-size:12px;color:var(--ink-3)}
.search-hot button:hover{color:var(--ink);border-color:var(--line-2)}
.search-results{border-top:1px solid var(--line);margin-top:26px}
.search-results .feed-row{grid-template-columns:48px 1fr 100px}
.search-results .feed-thumb{width:48px}
mark{background:rgba(217,176,108,.22);color:var(--gold-2);border-radius:3px;padding:0 2px}

/* ---------- 页脚 ---------- */
.site-foot{border-top:1px solid var(--line);margin-top:40px}
.foot-in{max-width:1240px;margin:0 auto;padding:46px 32px 34px;display:grid;grid-template-columns:1.4fr 1fr;gap:40px}
.foot-brand b{font-family:var(--serif);font-size:20px;letter-spacing:1px}
.foot-brand span{font-size:10px;letter-spacing:2.6px;color:var(--ink-3);margin-left:10px;text-transform:uppercase}
.foot-brand p{margin:14px 0 0;font-size:13px;color:var(--ink-3)}
.foot-meta{display:flex;gap:40px;justify-content:flex-end;align-items:flex-start}
.foot-meta div{display:flex;flex-direction:column;gap:7px}
.foot-meta span{font-size:11px;color:var(--ink-3)}
.foot-meta b{font-size:13px;font-weight:500;color:var(--ink-2)}
.foot-note{grid-column:1/-1;margin:20px 0 0;padding-top:22px;border-top:1px solid var(--line);font-size:11.5px;color:var(--ink-3)}

/* ---------- Toast ---------- */
.toast{position:fixed;left:50%;bottom:34px;transform:translate(-50%,20px);padding:12px 20px;border-radius:11px;background:rgba(20,28,46,.96);border:1px solid var(--line-2);font-size:13px;color:var(--ink);opacity:0;pointer-events:none;transition:all .3s var(--ease);z-index:80;box-shadow:var(--shadow)}
.toast.on{opacity:1;transform:translate(-50%,0)}

/* ---------- 账号 ---------- */
.head-account{display:flex;align-items:center;flex-shrink:0}
.acct{display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 10px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.035);font-size:12.5px;color:var(--ink-2);transition:border-color .2s,background .2s,color .2s}
.acct:hover{border-color:rgba(124,140,248,.42);background:rgba(124,140,248,.10);color:var(--ink)}
.acct svg{color:var(--ink-3)}
.acct-av{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-family:var(--serif);font-size:12px;font-weight:600;color:#241a07;background:linear-gradient(140deg,var(--gold-2),var(--gold));box-shadow:0 2px 8px rgba(217,176,108,.32)}
.acct-name{max-width:96px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.acct-n{min-width:18px;height:18px;padding:0 5px;border-radius:999px;display:grid;place-items:center;font-size:10.5px;font-weight:600;color:var(--indigo-2);background:rgba(124,140,248,.16);border:1px solid rgba(124,140,248,.3)}
.acct-login{padding:0 13px}

/* ---------- 详情页收藏 ---------- */
.paper-fav{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin:-8px 0 30px}
.fav-btn{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 18px;border-radius:11px;border:1px solid var(--line-2);background:rgba(255,255,255,.04);font-size:13.5px;font-weight:600;color:var(--ink-2);transition:all .22s var(--ease)}
.fav-btn:hover{border-color:rgba(217,176,108,.5);color:var(--gold-2);background:rgba(217,176,108,.08)}
.fav-btn.on{border-color:rgba(217,176,108,.55);background:linear-gradient(140deg,rgba(217,176,108,.20),rgba(217,176,108,.08));color:var(--gold-2)}
.fav-btn.on svg{filter:drop-shadow(0 0 6px rgba(217,176,108,.55))}
.paper-fav-hint{font-size:12px;color:var(--ink-3)}
.paper-fav-more{font-size:12px;color:var(--indigo-2);margin-left:auto}
.paper-fav-more:hover{color:var(--ink)}

/* ---------- 登录 / 注册弹层 ---------- */
body.lock{overflow:hidden}
.sheet{position:fixed;inset:0;z-index:90;display:grid;place-items:center;padding:24px}
.sheet-mask{position:absolute;inset:0;background:rgba(4,6,11,.72);backdrop-filter:blur(8px)}
.auth-card{position:relative;width:min(420px,100%);max-height:calc(100vh - 48px);overflow:auto;border-radius:20px;border:1px solid var(--line-2);padding:32px 30px 26px;background:
  radial-gradient(520px 260px at 100% 0%,rgba(124,140,248,.16),transparent 62%),
  linear-gradient(168deg,#141c2e,#0c111c 62%);box-shadow:0 40px 90px rgba(0,0,0,.6);animation:sheetIn .32s var(--ease)}
@keyframes sheetIn{from{opacity:0;transform:translateY(18px) scale(.985)}to{opacity:1;transform:none}}
.auth-x{position:absolute;right:14px;top:12px;width:30px;height:30px;border-radius:50%;font-size:20px;line-height:1;color:var(--ink-3);background:rgba(255,255,255,.04)}
.auth-x:hover{color:var(--ink);background:rgba(255,255,255,.1)}
.auth-head h2{font-family:var(--serif);font-size:25px;line-height:1.4;font-weight:600;margin:12px 0 10px;letter-spacing:.5px}
.auth-head p{margin:0 0 22px;font-size:13px;line-height:1.8;color:var(--ink-3)}
.auth-tabs{display:flex;gap:4px;padding:4px;border-radius:11px;background:rgba(255,255,255,.04);border:1px solid var(--line);margin-bottom:20px}
.auth-tabs button{flex:1;height:34px;border-radius:8px;font-size:13px;color:var(--ink-3);transition:all .2s}
.auth-tabs button.on{background:rgba(124,140,248,.16);color:var(--indigo-2);font-weight:600}
.auth-field{display:block;margin-bottom:14px}
.auth-field span{display:block;font-size:11.5px;letter-spacing:1px;color:var(--ink-3);margin-bottom:7px}
.auth-field input{width:100%;height:44px;padding:0 14px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.035);font-size:14px;color:var(--ink);outline:none;transition:border-color .2s,box-shadow .2s}
.auth-field input::placeholder{color:var(--ink-3)}
.auth-field input:focus{border-color:rgba(124,140,248,.6);box-shadow:0 0 0 3px rgba(124,140,248,.12)}
.auth-err{margin:0 0 14px;padding:9px 12px;border-radius:9px;font-size:12.5px;line-height:1.6;color:#ffb4c1;background:rgba(232,121,143,.10);border:1px solid rgba(232,121,143,.28)}
.auth-submit{width:100%;justify-content:center;margin-top:4px}
.auth-note{margin:16px 0 0;font-size:11.5px;line-height:1.7;color:var(--ink-3);text-align:center}

/* ---------- 收藏页 ---------- */
.fav-page{max-width:1080px;margin:0 auto;padding:46px 0 70px;min-height:60vh}
.fav-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin:6px 0 30px;flex-wrap:wrap}
.fav-head h1{font-family:var(--serif);font-size:clamp(34px,4vw,46px);font-weight:600;letter-spacing:1px;margin:10px 0 10px}
.fav-sub{margin:0;font-size:13px;color:var(--ink-3)}
.fav-sub b{color:var(--ink-2);font-weight:500}
.fav-acts{display:flex;gap:10px;flex-wrap:wrap}
.fav-list{border-top:1px solid var(--line)}
.fav-row{position:relative}
.fav-row .feed-row{padding-right:56px;border-bottom:1px solid var(--line)}
.fav-del{position:absolute;right:10px;top:50%;transform:translateY(-50%);width:30px;height:30px;border-radius:50%;display:grid;place-items:center;color:var(--ink-3);border:1px solid transparent;transition:all .2s}
.fav-del:hover{color:var(--rose);border-color:rgba(232,121,143,.32);background:rgba(232,121,143,.10)}
.fav-empty{max-width:560px;margin:40px auto 0;text-align:center;padding:52px 32px;border-radius:20px;border:1px solid var(--line);background:
  radial-gradient(420px 220px at 50% 0%,rgba(124,140,248,.14),transparent 70%),
  linear-gradient(170deg,rgba(255,255,255,.045),rgba(255,255,255,.012))}
.fav-empty-ico{width:54px;height:54px;margin:0 auto 20px;border-radius:16px;display:grid;place-items:center;color:var(--gold-2);background:rgba(217,176,108,.10);border:1px solid rgba(217,176,108,.28)}
.fav-empty-ico svg{width:24px;height:24px}
.fav-empty h2{font-family:var(--serif);font-size:26px;font-weight:600;margin:0 0 12px}
.fav-empty p{margin:0 auto 26px;max-width:400px;font-size:13.5px;line-height:1.9;color:var(--ink-3)}
.fav-empty-acts{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.fav-loading{padding-top:8px}

/* ---------- 一键总结（研究地图） ---------- */
.digest-cta{display:flex;align-items:center;gap:28px;justify-content:space-between;margin:0 0 34px;padding:26px 28px;border-radius:18px;border:1px solid rgba(124,140,248,.24);background:
  radial-gradient(560px 220px at 8% 0%,rgba(124,140,248,.18),transparent 66%),
  linear-gradient(150deg,rgba(255,255,255,.04),rgba(255,255,255,.012))}
.digest-cta h3{font-family:var(--serif);font-size:21px;font-weight:600;margin:10px 0 8px}
.digest-cta p{margin:0;font-size:12.5px;line-height:1.85;color:var(--ink-3);max-width:560px}
.digest-cta .btn{flex-shrink:0}
.spinner{width:26px;height:26px;flex-shrink:0;border-radius:50%;border:2px solid rgba(124,140,248,.24);border-top-color:var(--indigo);animation:spin .9s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.digest-err{margin:0 0 16px;padding:10px 14px;border-radius:10px;font-size:12.5px;color:#ffb4c1;background:rgba(232,121,143,.10);border:1px solid rgba(232,121,143,.28)}
.digest{margin:0 0 38px;padding:30px;border-radius:20px;border:1px solid rgba(217,176,108,.26);background:
  radial-gradient(680px 260px at 100% 0%,rgba(217,176,108,.13),transparent 62%),
  radial-gradient(520px 240px at 0% 100%,rgba(124,140,248,.10),transparent 66%),
  linear-gradient(160deg,rgba(20,28,46,.92),rgba(10,14,23,.92))}
.digest-head{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:20px;flex-wrap:wrap}
.digest-head h2{font-family:var(--serif);font-size:26px;font-weight:600;margin:10px 0 6px}
.digest-meta{margin:0;font-size:11.5px;color:var(--ink-3);letter-spacing:.3px}
.digest-overview{font-size:15px;line-height:2;color:var(--ink);margin:0 0 26px;padding-left:16px;border-left:2px solid rgba(217,176,108,.55)}
.dg-themes{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin-bottom:26px}
.dg-theme{border:1px solid var(--line);border-radius:14px;padding:18px;background:rgba(255,255,255,.028)}
.dg-theme header{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:9px}
.dg-theme b{font-family:var(--serif);font-size:16px;font-weight:600;color:var(--gold-2)}
.dg-theme i{font-style:normal;font-size:10.5px;color:var(--ink-3);padding:2px 7px;border-radius:999px;border:1px solid var(--line)}
.dg-theme p{margin:0 0 12px;font-size:12.5px;line-height:1.75;color:var(--ink-2)}
.dg-pids{display:flex;flex-wrap:wrap;gap:6px}
.dg-pids span{max-width:100%;padding:3px 8px;border-radius:7px;font-size:10.5px;color:var(--ink-3);background:rgba(255,255,255,.04);border:1px solid var(--line);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dg-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;padding-top:22px;border-top:1px solid var(--line)}
.dg-col h4{margin:0 0 14px;font-size:11px;letter-spacing:2px;color:var(--ink-3);text-transform:uppercase}
.dg-dots{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.dg-dots li{position:relative;padding-left:15px;font-size:12.5px;line-height:1.8;color:var(--ink-2)}
.dg-dots li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;background:var(--gold);opacity:.75}
.dg-path{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.dg-path li{display:grid;grid-template-columns:22px 1fr;gap:10px}
.dg-path b{font-family:var(--serif);font-size:12px;color:var(--gold);font-weight:500;line-height:1.7}
.dg-path a{font-size:12.5px;color:var(--ink);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.dg-path a:hover{color:var(--indigo-2)}
.dg-path span{display:block;margin-top:2px;font-size:11.5px;line-height:1.65;color:var(--ink-3)}

/* ---------- 响应式 ---------- */
@media (max-width:1140px){
  .head-in{gap:18px;padding:0 24px}
  .head-nav{gap:16px;font-size:13px}
  .head-status{display:none}
  .search-trigger kbd{display:none}
  .search-trigger{width:38px;padding:0;justify-content:center}
  .search-trigger span{display:none}
}
@media (max-width:1080px){
  .hero{gap:40px}
  .hero-rail{display:none}
  .paper-grid{grid-template-columns:1fr;gap:40px}
  .paper-side{position:static;display:grid;grid-template-columns:1fr 1fr;gap:16px}
  .side-box{margin:0}
}
@media (max-width:880px){
  .head-in{padding:0 20px;gap:14px;height:64px}
  .head-nav,.head-status{display:none}
  .search-trigger{margin-left:auto}
  .search-trigger span{display:none}
  .search-trigger kbd{display:none}
  .view{padding:0 20px}
  .hero{grid-template-columns:1fr;min-height:auto;padding:46px 0 60px;gap:44px}
  .hero-copy h1{font-size:clamp(40px,10vw,56px)}
  .hero-feature{aspect-ratio:auto;height:min(58vh,460px);min-height:360px}
  .hf-body{left:20px;right:20px;bottom:20px}
  .hf-title{font-size:23px;line-height:1.4}
  .hf-line{font-size:13px;margin-bottom:14px}
  .hf-meta{font-size:11px;gap:8px}
  .hero-stats{gap:30px;margin-top:38px}
  .section{padding:70px 0 10px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .section-head h2{font-size:31px}
  .picks{grid-template-columns:1fr;grid-auto-rows:auto}
  .picks.for-you{grid-template-columns:1fr;grid-auto-rows:auto}
  .pick,.pick:first-child{grid-column:auto;grid-row:auto;min-height:230px;padding:22px}
  .pick:first-child .pick-title{font-size:23px}
  .pick img{z-index:-2}
  .topic-grid{grid-template-columns:1fr}
  .topic-count{display:none}
  .manifesto-grid{grid-template-columns:1fr;gap:20px}
  .manifesto h2{font-size:28px}
  .feed-row{grid-template-columns:40px 1fr;gap:14px;padding:20px 4px}
  .feed-thumb{width:40px;border-radius:8px}
  .feed-right{display:none}
  .feed-title{font-size:18px}
  .feed-line{-webkit-line-clamp:2}
  .paper{padding:30px 0 60px}
  .paper-cover{height:230px}
  .paper .one-liner{font-size:17px}
  .paper-side{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .foot-in{grid-template-columns:1fr;padding:36px 20px}
  .foot-meta{justify-content:flex-start;gap:30px}
  .search-page{padding:40px 0 60px}
  .search-page h1{font-size:30px}
  .search-results .feed-row{grid-template-columns:38px 1fr}
  .search-results .feed-thumb{width:38px}
  .acct-name{display:none}
  .acct{padding:0 9px}
  .fav-page{padding:30px 0 60px}
  .fav-head{align-items:flex-start;gap:18px}
  .fav-head h1{font-size:30px}
  .fav-acts{width:100%}
  .fav-acts .btn{flex:1;justify-content:center}
  .fav-row .feed-row{padding-right:46px}
  .fav-del{right:4px}
  .paper-fav-more{margin-left:0}
  .digest-cta{flex-direction:column;align-items:flex-start;gap:18px;padding:22px}
  .digest-cta .btn{width:100%;justify-content:center}
  .digest{padding:22px}
  .digest-head h2{font-size:22px}
  .dg-themes{grid-template-columns:1fr}
  .dg-cols{grid-template-columns:1fr;gap:20px}
}
@media (max-width:640px){
  .sheet{padding:0;align-items:end}
  .auth-card{width:100%;max-height:92vh;border-radius:20px 20px 0 0;border-bottom:0;padding:28px 22px calc(22px + env(safe-area-inset-bottom))}
  .fav-empty{padding:40px 22px;margin-top:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}