/* ============================================================
冷知识典藏馆 · The Cold Almanac
Apple-style light-luxury design system
============================================================ */
:root{
--bg:#F4F3F0;
--bg-2:#EFEEEA;
--card:#FFFFFF;
--ink:#1B1B1E;
--ink-2:#3A3A3F;
--muted:#6E6E73;
--faint:#A0A0A6;
--line:rgba(22,22,26,.085);
--line-2:rgba(22,22,26,.05);
--gold:#A9823F;
--gold-2:#8A6A33;
--gold-3:#C7A567;
--gold-tint:#F1E9DA;
--r-xl:28px;
--r-lg:22px;
--r-md:16px;
--r-sm:11px;
--r-pill:999px;
--sh-sm:0 1px 2px rgba(20,22,34,.045), 0 3px 10px rgba(20,22,34,.045);
--sh-md:0 10px 30px rgba(20,22,34,.08), 0 2px 8px rgba(20,22,34,.05);
--sh-lg:0 30px 70px rgba(20,22,34,.16), 0 8px 22px rgba(20,22,34,.08);
--serif:"Songti SC","STSong","Noto Serif SC","Source Han Serif SC",serif;
--sans:-apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Helvetica Neue","Microsoft YaHei",system-ui,sans-serif;
--mono:"SF Mono",ui-monospace,"JetBrains Mono",Menlo,"Cascadia Code",monospace;
--maxw:1200px;
--ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}
body{
margin:0;
font-family:var(--sans);
color:var(--ink);
background:var(--bg);
line-height:1.62;
letter-spacing:.005em;
background-image:
radial-gradient(1100px 520px at 84% -8%, rgba(169,130,63,.07), transparent 62%),
radial-gradient(900px 480px at 4% 4%, rgba(120,140,200,.045), transparent 60%);
background-attachment:fixed;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
::selection{background:rgba(169,130,63,.18)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.eyebrow{
font-family:var(--mono);
font-size:11px;
letter-spacing:.22em;
text-transform:uppercase;
color:var(--gold-2);
font-weight:600;
}
/* ---------- Header ---------- */
.hdr{
position:sticky;top:0;z-index:60;
background:rgba(244,243,240,.74);
backdrop-filter:saturate(180%) blur(22px);
-webkit-backdrop-filter:saturate(180%) blur(22px);
border-bottom:1px solid var(--line);
}
.hdr-in{display:flex;align-items:center;gap:18px;height:64px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
background:linear-gradient(150deg,#222426,#0e0f10);
color:var(--gold-3);font-size:18px;line-height:1;
box-shadow:inset 0 1px 0 rgba(255,255,255,.12), var(--sh-sm);
}
.brand-tt{display:flex;flex-direction:column;line-height:1.15}
.brand-tt b{font-size:15.5px;font-weight:650;letter-spacing:.01em}
.brand-tt span{font-family:var(--mono);font-size:9.5px;letter-spacing:.2em;color:var(--faint);text-transform:uppercase}
.hdr-search{margin-left:auto;position:relative;width:min(340px,42vw)}
.hdr-search input{
width:100%;height:40px;border-radius:var(--r-pill);
border:1px solid var(--line);background:rgba(255,255,255,.7);
padding:0 38px 0 38px;font-size:14px;color:var(--ink);
transition:border-color .25s var(--ease), box-shadow .25s var(--ease), background .25s;
}
.hdr-search input::placeholder{color:var(--faint)}
.hdr-search input:focus{outline:none;border-color:rgba(169,130,63,.55);background:#fff;box-shadow:0 0 0 4px rgba(169,130,63,.12)}
.hdr-search .ic{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--faint);font-size:15px;pointer-events:none}
.hdr-search .clr{position:absolute;right:9px;top:50%;transform:translateY(-50%);width:24px;height:24px;border-radius:50%;display:grid;place-items:center;color:var(--muted);font-size:15px;opacity:0;transition:opacity .2s}
.hdr-search.has .clr{opacity:1}
.hdr-search .clr:hover{background:var(--bg-2);color:var(--ink)}
.hdr-date{flex:0 0 auto;font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--faint)}
@media(max-width:720px){.hdr-date{display:none}.hdr-search{width:auto;flex:1}}
/* ---------- Hero ---------- */
.hero{padding:54px 0 18px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-copy{min-width:0}
.hero-kicker{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.hero-kicker .ln{height:1px;width:34px;background:linear-gradient(90deg,var(--gold-3),transparent)}
.hero h1{
font-family:var(--serif);
font-weight:600;
font-size:clamp(31px,4.4vw,50px);
line-height:1.18;
letter-spacing:.005em;
margin:0 0 18px;
color:var(--ink);
}
.hero .lead{font-size:clamp(15px,1.5vw,17.5px);color:var(--ink-2);max-width:34em;margin:0 0 12px}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;margin:18px 0 28px;font-size:12.5px;color:var(--muted)}
.hero-meta .mcat{color:var(--gold-2);font-weight:600}
.hero-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--faint)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.btn{
display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 22px;
border-radius:var(--r-pill);font-size:14.5px;font-weight:550;letter-spacing:.01em;
transition:transform .2s var(--ease), box-shadow .25s var(--ease), background .25s, border-color .25s;
}
.btn:active{transform:translateY(1px) scale(.99)}
.btn-pri{background:linear-gradient(180deg,#23252a,#121316);color:#fff;box-shadow:var(--sh-md)}
.btn-pri:hover{box-shadow:var(--sh-lg);transform:translateY(-1px)}
.btn-pri .ar{color:var(--gold-3)}
.btn-ghost{background:rgba(255,255,255,.6);border:1px solid var(--line);color:var(--ink-2)}
.btn-ghost:hover{background:#fff;border-color:rgba(169,130,63,.45);color:var(--ink)}
/* hero cover */
.hero-cover{position:relative}
.plate{
position:relative;border-radius:var(--r-xl);overflow:hidden;
box-shadow:var(--sh-lg);
background:var(--card);
}
.plate::after{content:"";position:absolute;inset:0;border-radius:inherit;border:1px solid rgba(255,255,255,.5);pointer-events:none}
.hero-cover .badge{
position:absolute;left:18px;top:18px;z-index:3;
font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:#fff;
background:rgba(20,20,24,.42);backdrop-filter:blur(6px);
padding:6px 11px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.18);
}
/* ---------- Toolbar ---------- */
.toolbar{padding:26px 0 22px;position:sticky;top:64px;z-index:40;
background:linear-gradient(180deg,var(--bg) 62%,rgba(244,243,240,0));
}
/* Search mode: 搜索是独立任务，隐藏与关键词无关的今日主推/今日精选，
让结果直接接在顶部导航下方；分类 chips 仍可继续二次筛选。 */
body.search-mode .hero,
body.search-mode .picks{display:none}
body.search-mode .toolbar{padding-top:28px;scroll-margin-top:64px;background:linear-gradient(180deg,var(--bg) 80%,rgba(244,243,240,.92))}
body.search-mode .tool-head h2{font-size:25px}
body.search-mode #grid{padding-top:10px}
.tool-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:16px}
.tool-head h2{font-family:var(--serif);font-weight:600;font-size:22px;margin:0;letter-spacing:.01em}
.count{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.04em}
.count b{color:var(--gold-2);font-weight:600}
.chips{display:flex;gap:9px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none;-ms-overflow-style:none}
.chips::-webkit-scrollbar{display:none}
.chip{
flex:0 0 auto;height:34px;padding:0 15px;border-radius:var(--r-pill);
font-size:13px;font-weight:500;color:var(--muted);
background:rgba(255,255,255,.55);border:1px solid var(--line);
display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
transition:all .2s var(--ease);
}
.chip:hover{color:var(--ink);border-color:rgba(169,130,63,.4)}
.chip .cd{width:7px;height:7px;border-radius:50%;background:currentColor;opacity:.85}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.chip.on .cd{opacity:1}
/* ---------- Grid ---------- */
.grid{
display:grid;
grid-template-columns:repeat(auto-fill,minmax(258px,1fr));
gap:26px;
padding:6px 0 80px;
}
.card{
position:relative;border-radius:var(--r-lg);background:var(--card);
border:1px solid var(--line-2);
box-shadow:var(--sh-sm);overflow:hidden;
display:flex;flex-direction:column;
transition:transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
cursor:pointer;
opacity:0;transform:translateY(14px);
animation:rise .55s var(--ease) forwards;
}
@keyframes rise{to{opacity:1;transform:none}}
.card:hover{transform:translateY(-5px);box-shadow:var(--sh-md);border-color:var(--line)}
.card:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(169,130,63,.5), var(--sh-md)}
.cover{position:relative;aspect-ratio:3/2;overflow:hidden;background:var(--bg-2)}
.cover svg{width:100%;height:100%;display:block}
.cover .photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .5s var(--ease)}
.cover .photo.on{opacity:1}
.cover .ph-scrim{position:absolute;inset:0;opacity:0;transition:opacity .5s;background:linear-gradient(180deg,rgba(0,0,0,0) 40%,rgba(0,0,0,.28))}
.cover .photo.on ~ .ph-scrim{opacity:1}
.cover .sheen{position:absolute;inset:0;background:linear-gradient(115deg,rgba(255,255,255,0) 40%,rgba(255,255,255,.42) 50%,rgba(255,255,255,0) 60%);transform:translateX(-120%);transition:transform .8s var(--ease)}
.card:hover .cover .sheen{transform:translateX(120%)}
.cover .cno{position:absolute;right:11px;bottom:9px;font-family:var(--mono);font-size:10px;letter-spacing:.12em;color:rgba(20,20,24,.42);z-index:2}
.card-body{padding:15px 16px 16px;display:flex;flex-direction:column;flex:1;min-width:0}
.card-eyebrow{display:flex;align-items:center;gap:7px;margin-bottom:9px;font-size:11px;color:var(--muted)}
.card-eyebrow .cd{width:7px;height:7px;border-radius:50%;flex:0 0 auto}
.card-eyebrow .cn{font-weight:600;letter-spacing:.01em}
.card-eyebrow .no{margin-left:auto;font-family:var(--mono);font-size:10px;color:var(--faint);letter-spacing:.08em}
.card-title{
font-family:var(--serif);font-weight:600;font-size:17px;line-height:1.4;margin:0 0 8px;color:var(--ink);
display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-sum{
font-size:13px;color:var(--muted);line-height:1.58;margin:0 0 14px;
display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:11px;border-top:1px solid var(--line-2)}
.card-foot .src{font-size:11px;color:var(--faint);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-foot .go{flex:0 0 auto;font-size:12px;color:var(--gold-2);font-weight:600;display:inline-flex;align-items:center;gap:4px;transition:gap .2s}
.card:hover .card-foot .go{gap:8px}
.empty{grid-column:1/-1;text-align:center;padding:80px 20px;color:var(--muted)}
.empty .big{font-family:var(--serif);font-size:22px;color:var(--ink-2);margin-bottom:8px}
/* ---------- Reading sheet (modal) ---------- */
.overlay{
position:fixed;inset:0;z-index:100;display:grid;place-items:start center;
padding:max(28px,4vh) 16px 28px;overflow-y:auto;
background:rgba(28,28,32,.42);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
opacity:0;visibility:hidden;pointer-events:none;
transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.overlay.show{opacity:1;visibility:visible;pointer-events:auto}
.sheet{
width:min(740px,100%);background:var(--card);border-radius:var(--r-xl);
box-shadow:var(--sh-lg);overflow:hidden;position:relative;
transform:translateY(18px) scale(.985);transition:transform .35s var(--ease);
}
.overlay.show .sheet{transform:none}
.sheet-close{
position:absolute;right:16px;top:16px;z-index:5;width:36px;height:36px;border-radius:50%;
background:rgba(255,255,255,.78);backdrop-filter:blur(8px);color:var(--ink-2);font-size:17px;
display:grid;place-items:center;box-shadow:var(--sh-sm);transition:background .2s,transform .2s}
.sheet-close:hover{background:#fff;transform:rotate(90deg)}
.sheet-cover{position:relative;aspect-ratio:21/9;overflow:hidden}
.sheet-cover svg{width:100%;height:100%}
.sheet-cover .photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .5s}
.sheet-cover .photo.on{opacity:1}
.sheet-body{padding:30px clamp(22px,4vw,44px) 38px}
.sheet-eyebrow{display:flex;align-items:center;gap:9px;font-size:12px;color:var(--muted);margin-bottom:14px}
.sheet-eyebrow .cd{width:8px;height:8px;border-radius:50%}
.sheet-eyebrow .cn{color:var(--gold-2);font-weight:600}
.sheet-eyebrow .no{font-family:var(--mono);font-size:10px;letter-spacing:.1em}
.sheet h2{font-family:var(--serif);font-weight:600;font-size:clamp(22px,3vw,30px);line-height:1.3;margin:0 0 14px;color:var(--ink)}
.sheet-sum{font-size:15.5px;color:var(--ink-2);line-height:1.7;padding:14px 18px;background:var(--bg);border-radius:var(--r-md);border-left:2px solid var(--gold-3);margin-bottom:26px}
.sec{margin-bottom:24px}
.sec-h{display:flex;align-items:center;gap:10px;margin-bottom:9px}
.sec-h .lbl{font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--gold-2);text-transform:uppercase}
.sec-h .nm{font-family:var(--serif);font-weight:600;font-size:16px;color:var(--ink)}
.sec p{margin:0;font-size:15px;line-height:1.78;color:var(--ink-2)}
.sheet-tags{display:flex;flex-wrap:wrap;gap:8px;margin:26px 0 22px}
.sheet-tags .tg{font-size:12px;color:var(--muted);background:var(--bg);border:1px solid var(--line-2);padding:5px 12px;border-radius:var(--r-pill)}
.sheet-foot{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;padding-top:18px;border-top:1px solid var(--line);font-size:12.5px;color:var(--faint)}
.sheet-foot .src b{color:var(--muted);font-weight:600}
.sheet-foot .rnd{color:var(--gold-2);font-weight:600;display:inline-flex;align-items:center;gap:6px}
/* ---------- Footer ---------- */
.site-foot{border-top:1px solid var(--line);padding:40px 0 56px;color:var(--faint);font-size:12.5px}
.site-foot .row{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.site-foot .mk{display:flex;align-items:center;gap:9px;color:var(--muted)}
.site-foot .mk b{color:var(--ink-2);font-weight:600}
/* ---------- Responsive ---------- */
@media(max-width:880px){
.hero{padding:36px 0 8px}
.hero-grid{grid-template-columns:1fr;gap:30px}
.hero-cover{order:-1;max-width:440px}
.toolbar{top:64px}
}
@media(max-width:560px){
.wrap{padding:0 18px}
.grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}
.card-title{font-size:15px}
.card-sum{-webkit-line-clamp:2;font-size:12px}
.card-body{padding:12px 13px 13px}
.card-foot .src{display:none}
}
/* ---------- Motion / a11y ---------- */
@media(prefers-reduced-motion:reduce){
*{animation-duration:.001ms!important;transition-duration:.001ms!important}
.card{opacity:1;transform:none}
}
/* ============================================================
image-first additions (project build)
============================================================ */
/* real photo is the STAR: it fades in over the SVG plate once loaded (.on).
if it fails to load, JS removes it and the plate remains as graceful fallback. */
.cover .photo{will-change:opacity,transform;transition:opacity .55s var(--ease),transform .9s var(--ease)}
.card:hover .cover .photo.on{transform:scale(1.045)}
.sheet-cover .photo{transition:opacity .55s var(--ease)}
/* "待补图" badge for facts without a real image yet */
.todo-badge{
position:absolute;left:14px;bottom:12px;z-index:4;
font-family:var(--mono);font-size:10px;letter-spacing:.08em;
padding:5px 9px;border-radius:999px;
background:rgba(20,20,24,.5);color:#fff;backdrop-filter:blur(6px);
display:inline-flex;align-items:center;gap:5px;
}
.todo-badge::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--gold)}
/* image credit line in the reading sheet */
.img-credit{
display:flex;align-items:center;gap:6px;flex-wrap:wrap;
font-size:11.5px;color:var(--faint);margin-top:8px
}
.img-credit a{color:var(--muted);text-decoration:none;border-bottom:1px solid var(--line-2)}
.img-credit a:hover{color:var(--gold-2)}
.img-credit .lic{font-family:var(--mono);font-size:10px;opacity:.8}
/* make every interactive affordance obviously clickable */
.card,.chip,.btn,.sheet-close,.hdr a,[role="button"]{cursor:pointer}
/* ============================================================
AI 追问 + 术语标蓝（新增）—— 沿用典藏馆浅色·玻璃·金棕体系
============================================================ */
:root{
--term:#2E6FB0; /* 术语蓝，克制、不廉价 */
--term-2:#255C93;
--term-bg:rgba(46,111,176,.08);
--glass:rgba(255,255,255,.62);
}
/* ---- 术语标蓝 ---- */
.term{
color:var(--term);
cursor:pointer;
font-weight:600;
padding:0 1px;
border-radius:4px;
background:linear-gradient(var(--term-bg),var(--term-bg)) no-repeat;
box-shadow:inset 0 -1px 0 rgba(46,111,176,.28);
transition:background-color .2s var(--ease),box-shadow .2s var(--ease),color .2s;
}
.term:hover,.term:focus-visible{
color:var(--term-2);
background-color:rgba(46,111,176,.16);
box-shadow:inset 0 -1px 0 rgba(46,111,176,.55);
outline:none;
}
.term::after{content:"";display:inline-block;width:11px;height:11px;margin-left:2px;vertical-align:-1px;opacity:.55;
background:currentColor;-webkit-mask:url("data:image/svg+xml;utf8,") center/contain no-repeat;
mask:url("data:image/svg+xml;utf8,") center/contain no-repeat;}
/* ---- 术语解释弹窗 ---- */
.term-pop{
position:fixed;z-index:200;max-width:calc(100vw - 24px);
background:rgba(255,255,255,.92);
backdrop-filter:saturate(180%) blur(16px);-webkit-backdrop-filter:saturate(180%) blur(16px);
border:1px solid var(--line);border-radius:var(--r-md);
box-shadow:var(--sh-lg);
padding:14px 15px;
opacity:0;transform:translateY(6px) scale(.98);pointer-events:none;
transition:opacity .18s var(--ease),transform .18s var(--ease);
}
.term-pop.show{opacity:1;transform:none;pointer-events:auto}
.term-pop .tp-term{font-family:var(--serif);font-weight:600;font-size:16px;color:var(--ink);margin-bottom:6px}
.term-pop .tp-term::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--term);margin-right:7px;vertical-align:2px}
.term-pop .tp-desc{font-size:13px;line-height:1.62;color:var(--ink-2);margin-bottom:12px}
.term-pop .tp-ask{
width:100%;height:36px;border-radius:var(--r-sm);
background:linear-gradient(180deg,#23252a,#121316);color:#fff;
font-size:13px;font-weight:600;letter-spacing:.01em;
display:inline-flex;align-items:center;justify-content:center;gap:6px;
transition:transform .18s var(--ease),box-shadow .2s var(--ease);
}
.term-pop .tp-ask::before{content:"✦";color:var(--gold-3);font-size:12px}
.term-pop .tp-ask:hover{box-shadow:var(--sh-md);transform:translateY(-1px)}
/* ---- AI 追问区块 ---- */
.ai-block{
margin-top:26px;padding:20px clamp(16px,3vw,22px) 18px;
border-radius:var(--r-lg);
background:
linear-gradient(180deg,rgba(169,130,63,.05),rgba(169,130,63,0) 60%),
var(--glass);
border:1px solid var(--line);
backdrop-filter:saturate(160%) blur(10px);-webkit-backdrop-filter:saturate(160%) blur(10px);
}
.ai-head{display:flex;align-items:center;gap:9px;margin-bottom:6px}
.ai-head b{font-family:var(--serif);font-weight:600;font-size:16px;color:var(--ink)}
.ai-badge{
font-family:var(--mono);font-size:10px;letter-spacing:.14em;font-weight:600;
color:#fff;background:linear-gradient(135deg,#3a3d44,#17181b);
padding:3px 8px;border-radius:var(--r-pill);
box-shadow:inset 0 1px 0 rgba(255,255,255,.14)}
.ai-note{font-size:12px;color:var(--faint);line-height:1.55;margin-bottom:14px}
/* 推荐追问 chips —— 高级知识卡片风 */
.ai-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:2px}
.aichip{
font-size:12.5px;color:var(--ink-2);
background:rgba(255,255,255,.7);border:1px solid var(--line);
padding:7px 13px;border-radius:var(--r-pill);
display:inline-flex;align-items:center;gap:6px;line-height:1.2;
transition:all .2s var(--ease);
}
.aichip::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--gold-3);flex:0 0 auto;transition:background .2s}
.aichip:hover{color:var(--ink);border-color:rgba(46,111,176,.5);background:#fff;transform:translateY(-1px);box-shadow:var(--sh-sm)}
.aichip:hover::before{background:var(--term)}
/* 对话 thread */
.ai-thread{display:flex;flex-direction:column;gap:12px;margin:16px 0}
.ai-thread:empty{margin:0}
.ai-q{
align-self:flex-end;max-width:88%;
background:linear-gradient(180deg,#23252a,#15161a);color:#fff;
font-size:14px;line-height:1.6;padding:10px 14px;border-radius:16px 16px 5px 16px;
box-shadow:var(--sh-sm);word-break:break-word;
}
.ai-a{
align-self:flex-start;max-width:96%;
background:rgba(255,255,255,.78);border:1px solid var(--line);
border-radius:16px 16px 16px 5px;
padding:13px 16px;font-size:14.5px;line-height:1.72;color:var(--ink-2);
box-shadow:var(--sh-sm);word-break:break-word;
animation:aiRise .35s var(--ease) both;
}
@keyframes aiRise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.ai-a p{margin:0 0 9px}.ai-a p:last-child{margin-bottom:0}
.ai-a p.ai-h{font-family:var(--serif);font-weight:600;color:var(--ink);font-size:15px;margin:10px 0 6px}
.ai-a ul{margin:6px 0 9px;padding-left:20px}
.ai-a li{margin:3px 0}
.ai-a b{color:var(--ink);font-weight:650}
.ai-a em{font-style:normal;color:var(--gold-2)}
.ai-a blockquote,.ai-a > p:has(> br){}
.ai-a.err{background:rgba(255,240,238,.8);border-color:rgba(200,80,70,.28)}
.ai-fail{color:#b1483d}
.ai-retry{color:var(--term);font-weight:600;font-size:13px;border-bottom:1px solid transparent}
.ai-retry:hover{border-bottom-color:var(--term)}
/* 输入行 */
.ai-input-row{display:flex;gap:9px;align-items:center;margin-top:4px}
.ai-input-row input{
flex:1;min-width:0;height:42px;border-radius:var(--r-pill);
border:1px solid var(--line);background:rgba(255,255,255,.82);
padding:0 16px;font-size:14px;color:var(--ink);
transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s;
}
.ai-input-row input::placeholder{color:var(--faint)}
.ai-input-row input:focus{outline:none;border-color:rgba(46,111,176,.55);background:#fff;box-shadow:0 0 0 4px rgba(46,111,176,.12)}
.ai-send{
flex:0 0 auto;height:42px;padding:0 20px;border-radius:var(--r-pill);
background:linear-gradient(180deg,#23252a,#121316);color:#fff;
font-size:14px;font-weight:600;letter-spacing:.02em;
display:inline-flex;align-items:center;gap:6px;
transition:transform .18s var(--ease),box-shadow .2s var(--ease),opacity .2s;
}
.ai-send::after{content:"↗";color:var(--gold-3);font-weight:700}
.ai-send:hover{box-shadow:var(--sh-md);transform:translateY(-1px)}
.ai-send:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
/* 打字 loading 动画（轻量，无依赖） */
.ai-typing{display:inline-flex;gap:5px;align-items:center;padding:2px 0}
.ai-typing i{width:7px;height:7px;border-radius:50%;background:var(--gold-3);opacity:.4;animation:aiDot 1s infinite ease-in-out}
.ai-typing i:nth-child(2){animation-delay:.16s}
.ai-typing i:nth-child(3){animation-delay:.32s}
@keyframes aiDot{0%,80%,100%{opacity:.35;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}
/* 移动端适配 */
@media(max-width:560px){
.ai-block{padding:16px 14px 14px;border-radius:var(--r-md)}
.ai-q{max-width:92%;font-size:13.5px}
.ai-a{max-width:100%;font-size:13.5px}
.aichip{font-size:12px;padding:6px 11px}
.ai-send{padding:0 15px}
.term-pop{max-width:calc(100vw - 20px)}
}
/* 减少动效偏好 */
@media(prefers-reduced-motion:reduce){
.ai-a,.term-pop{animation:none!important}
.ai-typing i{animation-duration:.001ms!important}
}
/* ============================================================
术语富弹窗 + 回答相关卡片（第二阶段/第四阶段）
============================================================ */
.term-pop .tp-top{display:flex;align-items:center;gap:8px;margin-bottom:8px;flex-wrap:wrap}
.term-pop .tp-term{font-family:var(--serif);font-weight:600;font-size:16.5px;color:var(--ink)}
.term-pop .tp-term::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--term);margin-right:7px;vertical-align:2px}
.term-pop .tp-type{
font-family:var(--mono);font-size:10px;letter-spacing:.06em;
color:var(--term-2);background:var(--term-bg);
border:1px solid rgba(46,111,176,.22);
padding:2px 8px;border-radius:var(--r-pill)}
.term-pop .tp-brief{font-size:13.5px;line-height:1.6;color:var(--ink-2);margin-bottom:8px}
.term-pop .tp-detail{
font-size:12.5px;line-height:1.72;color:var(--muted);margin-bottom:10px;
max-height:180px;overflow:auto;
padding-top:8px;border-top:1px solid var(--line-2)}
.term-pop .tp-why{font-size:12px;line-height:1.6;color:var(--ink-2);margin-bottom:12px;
background:rgba(169,130,63,.06);border-radius:var(--r-sm);padding:8px 10px}
.term-pop .tp-why-k{display:block;font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;
text-transform:uppercase;color:var(--gold-2);margin-bottom:3px}
/* 回答下方相关卡片 */
.rc-wrap{margin-top:14px;padding-top:12px;border-top:1px dashed var(--line)}
.rc-h{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:9px}
.rc-list{display:flex;flex-direction:column;gap:8px}
.rc-card{
display:flex;align-items:center;gap:11px;text-align:left;width:100%;
padding:8px 10px;border-radius:var(--r-md);
background:rgba(255,255,255,.7);border:1px solid var(--line);
position:relative;overflow:hidden;
transition:transform .22s var(--ease),box-shadow .28s var(--ease),border-color .22s;
}
.rc-card::after{ /* 灵动流光边缘 */
content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
background:linear-gradient(115deg,transparent 40%,rgba(46,111,176,.14) 50%,transparent 60%);
transform:translateX(-120%);transition:transform .7s var(--ease)}
.rc-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:rgba(46,111,176,.4)}
.rc-card:hover::after{transform:translateX(120%)}
.rc-img{flex:0 0 auto;width:44px;height:44px;border-radius:var(--r-sm);background-size:cover;background-position:center;background-color:var(--bg-2)}
.rc-img.rc-noimg{background:linear-gradient(135deg,var(--gold-tint),#fff)}
.rc-tt{display:flex;flex-direction:column;min-width:0}
.rc-cat{font-size:10.5px;color:var(--gold-2);font-weight:600;margin-bottom:2px}
.rc-title{font-size:13.5px;color:var(--ink);line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media(max-width:560px){
.rc-img{width:38px;height:38px}
.rc-title{font-size:12.5px}
}
/* ============================================================
登录态 / 登录弹窗 / 卡片历史 / 问题导航（浅色高级杂志风）
============================================================ */
.hdr-auth{flex:0 0 auto;display:flex;align-items:center}
.login-btn{
font-family:inherit;font-size:13px;font-weight:600;letter-spacing:.02em;
color:var(--gold-2);background:var(--gold-tint);
border:1px solid rgba(169,130,63,.28);border-radius:999px;
padding:7px 18px;cursor:pointer;transition:all .18s ease;white-space:nowrap;
}
.login-btn:hover{background:#fff;border-color:rgba(169,130,63,.5);color:var(--gold-2);box-shadow:0 2px 10px rgba(169,130,63,.12)}
.acct{display:flex;align-items:center;gap:10px}
.acct-email{font-family:var(--mono);font-size:11.5px;color:var(--muted);max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.acct-admin{font-size:11px;font-weight:600;color:var(--gold-2);text-decoration:none;border:1px solid rgba(169,130,63,.28);border-radius:999px;padding:3px 10px;transition:all .18s}
.acct-admin:hover{background:var(--gold-tint)}
.acct-out{font-family:inherit;font-size:12px;color:var(--muted);background:none;border:1px solid var(--line);border-radius:999px;padding:5px 12px;cursor:pointer;transition:all .18s}
.acct-out:hover{border-color:rgba(22,22,26,.2);color:var(--ink)}
/* 登录弹窗 */
.login-mask{position:fixed;inset:0;z-index:200;display:grid;place-items:center;padding:20px;
background:rgba(27,27,30,.32);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
opacity:0;transition:opacity .22s ease}
.login-mask.show{opacity:1}
.login-card{position:relative;width:100%;max-width:392px;background:var(--card);
border:1px solid var(--line);border-radius:18px;padding:34px 30px 28px;
box-shadow:0 24px 70px rgba(27,27,30,.22),0 2px 8px rgba(27,27,30,.06);
transform:translateY(8px) scale(.985);transition:transform .24s cubic-bezier(.2,.8,.2,1)}
.login-mask.show .login-card{transform:none}
.login-x{position:absolute;top:14px;right:14px;width:30px;height:30px;border:none;background:none;
color:var(--faint);font-size:22px;line-height:1;cursor:pointer;border-radius:50%;transition:all .18s}
.login-x:hover{background:var(--bg-2);color:var(--ink)}
.login-mark{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;font-size:19px;
color:var(--gold-3);background:var(--gold-tint);border:1px solid rgba(169,130,63,.22);margin-bottom:14px}
.login-h{font-family:var(--serif,Georgia,serif);font-size:21px;font-weight:600;color:var(--ink);margin:0 0 6px;letter-spacing:.01em}
.login-sub{font-size:13px;color:var(--muted);margin:0 0 20px;line-height:1.55}
.login-field{margin-bottom:14px}
.login-field label{display:block;font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--faint);margin-bottom:6px}
.login-field input{width:100%;box-sizing:border-box;font-family:inherit;font-size:15px;color:var(--ink);
background:var(--bg);border:1px solid var(--line);border-radius:11px;padding:12px 14px;transition:all .18s}
.login-field input:focus{outline:none;background:#fff;border-color:rgba(169,130,63,.5);box-shadow:0 0 0 3px rgba(169,130,63,.1)}
#loginCode{letter-spacing:.4em;font-family:var(--mono);font-weight:600}
.login-msg{min-height:18px;font-size:12.5px;line-height:1.5;margin:2px 0 12px;color:var(--muted)}
.login-msg.ok{color:#3f7d54}
.login-msg.err{color:#b4453a}
.login-msg.warn{color:var(--gold-2)}
.login-go{width:100%;font-family:inherit;font-size:14.5px;font-weight:600;letter-spacing:.02em;color:#fff;
background:var(--gold);border:1px solid var(--gold-2);border-radius:11px;padding:12px;cursor:pointer;
transition:all .18s;margin-top:2px}
.login-go:hover{background:var(--gold-2)}
.login-go:disabled{opacity:.55;cursor:default}
.login-go+.login-go{margin-top:8px}
/* “登录后可保存历史” 提示 */
.ai-login-hint{margin-left:auto;font-size:11.5px;color:var(--faint)}
.ai-login-hint.clickable{cursor:pointer;color:var(--gold-2);text-decoration:underline;text-underline-offset:2px}
/* 卡片历史（Q&A 折叠） */
.ai-history{margin:0 0 6px}
.qa-head{font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--muted);margin:2px 0 10px;
padding-bottom:8px;border-bottom:1px dashed var(--line)}
.qa{border:1px solid var(--line);border-radius:12px;margin-bottom:8px;background:rgba(255,255,255,.5);overflow:hidden;transition:border-color .18s}
.qa:hover{border-color:rgba(169,130,63,.3)}
.qa-q{width:100%;display:flex;align-items:flex-start;gap:9px;text-align:left;background:none;border:none;
font-family:inherit;font-size:14px;color:var(--ink);padding:12px 13px;cursor:pointer}
.qa-q-static{cursor:default}
.qa-ic{flex:0 0 auto;width:19px;height:19px;border-radius:6px;background:var(--gold-tint);color:var(--gold-2);
font-size:11px;font-weight:700;display:grid;place-items:center;margin-top:1px}
.qa-qt{flex:1;line-height:1.5;font-weight:500}
.qa-tog{flex:0 0 auto;font-size:11px;color:var(--faint);align-self:center}
.qa-q:hover .qa-tog{color:var(--gold-2)}
.qa-a{padding:0 14px 14px 41px;font-size:14px;line-height:1.72;color:var(--ink-2)}
.qa.collapsed .qa-a{display:none}
.qa.live{border-color:rgba(169,130,63,.28);background:#fff}
.qa.live .qa-a{padding-top:4px}
/* Grok 式问题导航（竖向） */
.ai-nav{position:absolute;top:50%;right:8px;transform:translateY(-50%);z-index:6;
display:flex;flex-direction:column;gap:7px;padding:8px 5px;
background:rgba(255,255,255,.72);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
border:1px solid var(--line);border-radius:999px;box-shadow:0 4px 16px rgba(27,27,30,.08)}
.nav-tick{position:relative;width:16px;height:16px;border:none;background:none;padding:0;cursor:pointer;display:grid;place-items:center}
.nav-dot{width:7px;height:7px;border-radius:50%;background:var(--faint);transition:all .18s}
.nav-tick:hover .nav-dot{background:var(--gold);transform:scale(1.35)}
.nav-tip{position:absolute;right:26px;top:50%;transform:translateY(-50%) translateX(6px);
white-space:nowrap;max-width:240px;overflow:hidden;text-overflow:ellipsis;
background:var(--ink);color:#fff;font-size:12px;padding:6px 11px;border-radius:8px;
opacity:0;pointer-events:none;transition:all .18s;box-shadow:0 4px 14px rgba(0,0,0,.2)}
.nav-tick:hover .nav-tip{opacity:1;transform:translateY(-50%) translateX(0)}
.nav-tip::after{content:'';position:absolute;left:100%;top:50%;transform:translateY(-50%);
border:5px solid transparent;border-left-color:var(--ink)}
@media (max-width:760px){
.acct-email{max-width:110px}
.hdr-auth .login-btn{padding:6px 13px;font-size:12px}
/* 移动端简化：导航收到底部角落、缩小，不遮正文 */
.ai-nav{top:auto;bottom:14px;right:10px;transform:none;flex-direction:row;border-radius:999px}
.nav-tip{right:auto;left:50%;top:auto;bottom:26px;transform:translateX(-50%) translateY(6px)}
.nav-tick:hover .nav-tip{transform:translateX(-50%) translateY(0)}
.nav-tip::after{left:50%;top:100%;transform:translateX(-50%);border-left-color:transparent;border-top-color:var(--ink)}
.qa-a{padding-left:14px}
}
/* ============================================================
v2 新增：今日精选 / 问问知识馆 / 我的历史 / 分页加载
============================================================ */
/* ---------- 今日精选 Daily Picks ---------- */
.picks{margin:8px auto 34px}
.pk-head{margin:0 0 18px}
.pk-kicker{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.pk-kicker .ln{display:inline-block;width:34px;height:1px;background:var(--gold)}
.pk-kicker .eyebrow{font-size:12px;letter-spacing:.16em;color:var(--gold-2);font-weight:600}
.pk-theme{font-family:var(--serif);font-size:clamp(22px,3vw,30px);font-weight:700;margin:0;color:var(--ink);letter-spacing:.01em}
.pk-sub{margin:8px 0 0;color:var(--faint);font-size:12.5px;letter-spacing:.02em}
.pk-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(215px,1fr));gap:18px}
.pk-grid.pk-3{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.pk-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;cursor:pointer;box-shadow:var(--sh-sm);transition:transform .28s var(--ease),box-shadow .28s var(--ease)}
.pk-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.pk-cover{position:relative;aspect-ratio:16/10;overflow:hidden}
.pk-cover svg,.pk-cover img.photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.pk-cover img.photo{opacity:0;transition:opacity .5s ease}
.pk-cover img.photo.on{opacity:1}
.pk-body{padding:14px 16px 16px}
.pk-eyebrow{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-size:12px}
.pk-rank{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:7px;background:var(--gold-tint);color:var(--gold-2);font-weight:700;font-size:11.5px}
.pk-eyebrow .cd{width:7px;height:7px;border-radius:50%}
.pk-eyebrow .cn{font-weight:600;letter-spacing:.04em}
.pk-title{font-family:var(--serif);font-size:16.5px;line-height:1.42;margin:0 0 6px;font-weight:700}
.pk-sum{font-size:13px;color:var(--muted);margin:0;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pk-note{font-size:12.5px;color:var(--gold-2);margin:9px 0 0;line-height:1.55;font-family:var(--serif)}
@media (max-width:640px){.pk-grid,.pk-grid.pk-3{grid-template-columns:1fr 1fr}.pk-note{display:none}}
/* ---------- 分页加载哨兵 ---------- */
.grid-more{display:flex;align-items:center;justify-content:center;gap:10px;padding:26px 0 40px;color:var(--faint);font-size:13px}
.gm-spin{width:14px;height:14px;border-radius:50%;border:2px solid var(--line);border-top-color:var(--gold);animation:gmspin 1s linear infinite}
@keyframes gmspin{to{transform:rotate(360deg)}}
/* ---------- 问问知识馆：右下角悬浮按钮 ---------- */
#gcFab{position:fixed;right:22px;bottom:22px;z-index:1200;display:inline-flex;align-items:center;gap:9px;
background:linear-gradient(135deg,var(--gold),var(--gold-2));color:#fff;border-radius:var(--r-pill);
padding:13px 19px;font-size:14px;font-weight:600;box-shadow:0 10px 30px rgba(138,106,51,.35),0 2px 8px rgba(20,22,34,.12);
transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
#gcFab:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(138,106,51,.42)}
#gcFab .gc-fab-ic{font-size:16px;line-height:1}
#gcFab.open .gc-fab-t{display:none}
@media (max-width:640px){#gcFab{right:14px;bottom:14px;padding:13px 15px}#gcFab .gc-fab-t{display:none}}
/* ---------- 问问知识馆：对话面板 ---------- */
#gcPanel{position:fixed;right:22px;bottom:86px;z-index:1210;width:min(420px,calc(100vw - 32px));
max-height:min(640px,calc(100vh - 120px));display:flex;flex-direction:column;
background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-lg);
opacity:0;transform:translateY(14px) scale(.985);pointer-events:none;transition:opacity .25s var(--ease),transform .25s var(--ease)}
#gcPanel.show{opacity:1;transform:none;pointer-events:auto}
.gc-head{display:flex;align-items:center;gap:9px;padding:14px 16px 10px;border-bottom:1px solid var(--line-2)}
.gc-head b{font-family:var(--serif);font-size:15.5px}
.gc-badge{display:inline-flex;align-items:center;justify-content:center;padding:2px 8px;border-radius:7px;background:var(--gold-tint);color:var(--gold-2);font-size:11px;font-weight:700;letter-spacing:.06em}
.gc-hint{margin-left:auto;font-size:11.5px;color:var(--faint)}
.gc-hint.clickable{color:var(--gold-2);cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.gc-hbtn{font-size:12px;color:var(--muted);padding:5px 9px;border-radius:8px;border:1px solid var(--line)}
.gc-hbtn:hover{background:var(--bg-2)}
.gc-hint:not(.clickable)+.gc-hbtn{margin-left:auto}
.gc-x{font-size:17px;line-height:1;padding:4px 10px}
.gc-note{font-size:11.5px;color:var(--faint);padding:8px 16px 0;line-height:1.5}
.gc-msgs{flex:1;overflow:auto;padding:12px 16px;display:flex;flex-direction:column;gap:12px;min-height:120px;overscroll-behavior:contain}
.gc-empty{color:var(--faint);font-size:13px;text-align:center;padding:26px 10px}
.gc-m.gc-u{display:flex;gap:9px;align-items:baseline}
.gc-m.gc-u .gc-ic{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;width:19px;height:19px;border-radius:6px;background:var(--gold-tint);color:var(--gold-2);font-size:11px;font-weight:700}
.gc-m.gc-u .gc-ut{font-weight:600;font-size:13.5px;line-height:1.55}
.gc-m.gc-a{font-size:13.5px;line-height:1.7;color:var(--ink-2);background:var(--bg);border:1px solid var(--line-2);border-radius:var(--r-md);padding:11px 13px}
.gc-m.gc-a p{margin:0 0 8px}.gc-m.gc-a p:last-child{margin-bottom:0}
.gc-m.gc-a ul{margin:4px 0 8px;padding-left:18px}
.gc-m.gc-a .rc-wrap{margin-top:10px}
.gc-chips{display:flex;flex-wrap:wrap;gap:7px;padding:4px 16px 10px}
.gc-chip{font-size:12px;color:var(--gold-2);background:var(--gold-tint);border-radius:var(--r-pill);padding:6px 12px;border:1px solid transparent;transition:border-color .2s}
.gc-chip:hover{border-color:var(--gold-3)}
.gc-input-row{display:flex;gap:9px;padding:10px 14px 14px;border-top:1px solid var(--line-2)}
.gc-input-row input{flex:1;font-size:13.5px;padding:11px 13px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--bg);color:var(--ink);outline:none}
.gc-input-row input:focus{border-color:var(--gold-3)}
.gc-send{background:linear-gradient(135deg,var(--gold),var(--gold-2));color:#fff;font-size:13px;font-weight:600;border-radius:var(--r-sm);padding:0 18px}
.gc-send:disabled{opacity:.5;cursor:not-allowed}
@media (max-width:640px){
#gcPanel{right:0;left:0;bottom:0;width:100vw;max-height:82vh;border-radius:var(--r-lg) var(--r-lg) 0 0}
}
/* ---------- 我的历史 ---------- */
.acct-hist{font-size:12.5px;color:var(--gold-2);border:1px solid var(--gold-3);border-radius:var(--r-pill);padding:6px 12px;margin-right:4px}
.acct-hist:hover{background:var(--gold-tint)}
.mh-mask{position:fixed;inset:0;z-index:1300;background:rgba(24,22,18,.42);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .22s}
.mh-mask.show{opacity:1}
.mh-card{position:relative;width:min(560px,calc(100vw - 36px));max-height:min(680px,calc(100vh - 80px));display:flex;flex-direction:column;background:var(--card);border-radius:var(--r-lg);box-shadow:var(--sh-lg);padding:24px 24px 14px}
.mh-x{position:absolute;top:12px;right:14px;font-size:20px;color:var(--faint);padding:6px 10px}
.mh-h{font-family:var(--serif);font-size:19px;margin:0 0 12px}
.mh-body{flex:1;overflow:auto;overscroll-behavior:contain}
.mh-sec-h{font-size:12.5px;font-weight:700;color:var(--gold-2);letter-spacing:.05em;margin:14px 0 8px}
.mh-list{display:flex;flex-direction:column;gap:6px}
.mh-row{display:flex;flex-direction:column;gap:2px;text-align:left;background:var(--bg);border:1px solid var(--line-2);border-radius:var(--r-sm);padding:10px 13px;transition:border-color .2s,background .2s}
.mh-row:hover{border-color:var(--gold-3);background:var(--gold-tint)}
.mh-q{font-size:13.5px;font-weight:600;color:var(--ink);line-height:1.5;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.mh-meta{font-size:11.5px;color:var(--faint)}
.mh-none,.mh-loading{font-size:13px;color:var(--faint);padding:12px 4px}
.mh-foot{padding-top:10px;text-align:right}
.mh-del{font-size:12px;color:#b3554d;padding:7px 12px;border-radius:var(--r-sm)}
.mh-del:hover{background:rgba(179,85,77,.08)}
/* ============================================================
v1.2 Reader refinement — preserve the Almanac visual language,
improve hierarchy, source credibility, mobile reading and focus.
============================================================ */
/* The browse-level global AI should not compete with an article-specific QA panel. */
body.reader-open #gcFab,
body.reader-open #gcPanel{
opacity:0!important;
pointer-events:none!important;
transform:translateY(10px) scale(.98)!important;
}
/* A hairline progress indicator across the top of the reader. */
.reader-progress{
position:fixed;top:0;left:0;right:0;height:2px;z-index:1500;
background:rgba(169,130,63,.08);pointer-events:none;
opacity:0;transition:opacity .2s var(--ease);
}
body.reader-open .reader-progress{opacity:1}
.reader-progress span{
display:block;width:100%;height:100%;transform:scaleX(0);transform-origin:left center;
background:linear-gradient(90deg,var(--gold-3),var(--gold-2));
transition:transform .08s linear;
}
/* Reader keeps the existing paper-sheet identity, but gives long text more breathing room. */
.sheet{width:min(780px,100%)}
.sheet-body{padding:34px clamp(24px,5vw,52px) 44px}
.reader-copy{max-width:64ch}
.reader-copy .sec{margin-bottom:28px}
.reader-copy .sec p{font-size:15.5px;line-height:1.86;letter-spacing:.008em}
.reader-copy .sec-h{margin-bottom:10px}
.reader-copy .sec-h .nm{font-size:16.5px}
.sheet-sum{margin-bottom:30px;line-height:1.78}
/* Source is a first-class editorial block rather than a tiny footnote. */
.source-card{
margin:30px 0 0;padding:18px 20px 16px;
border:1px solid var(--line);border-radius:var(--r-md);
background:linear-gradient(180deg,rgba(169,130,63,.045),rgba(255,255,255,.75));
}
.source-kicker{
font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;
color:var(--gold-2);font-weight:650;margin-bottom:11px;
}
.source-main{display:flex;align-items:flex-start;justify-content:space-between;gap:22px}
.source-main>div{min-width:0;display:flex;flex-direction:column;gap:5px}
.source-main b{font-family:var(--serif);font-size:14.5px;color:var(--ink);font-weight:650}
.source-main>div>span{font-size:11.5px;line-height:1.55;color:var(--faint);max-width:42em}
.source-open{
flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;
font-size:12px;font-weight:650;color:var(--gold-2);
padding:7px 10px;border:1px solid rgba(169,130,63,.22);border-radius:var(--r-pill);
background:rgba(255,255,255,.72);transition:all .2s var(--ease);
}
a.source-open:hover{border-color:var(--gold-3);background:#fff;transform:translateY(-1px)}
.source-open.muted{color:var(--faint);border-color:var(--line);cursor:default}
.source-card .img-credit{margin-top:13px;padding-top:11px;border-top:1px solid var(--line-2)}
/* Reading-end navigation is separated from source provenance. */
.reader-end{
display:flex;align-items:center;justify-content:space-between;gap:18px;
margin:18px 0 0;padding:16px 2px 2px;
color:var(--faint);border-top:1px solid var(--line-2);
}
.reader-end>span{font-family:var(--mono);font-size:9.5px;letter-spacing:.14em}
.reader-end .rnd{
color:var(--gold-2);font-size:12.5px;font-weight:650;
display:inline-flex;align-items:center;gap:7px;
}
/* Loading/error states for lazy detail JSON. */
.reader-loading-line{display:flex;align-items:center;gap:10px;color:var(--faint);font-size:12.5px;padding:16px 0 6px}
.reader-loading-line i{width:8px;height:8px;border-radius:50%;background:var(--gold-3);animation:readerPulse 1s ease-in-out infinite}
@keyframes readerPulse{0%,100%{opacity:.35;transform:scale(.8)}50%{opacity:1;transform:scale(1)}}
.reader-error{min-height:420px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:60px 30px;gap:8px}
.reader-error b{font-family:var(--serif);font-size:21px}
.reader-error span{font-size:13px;color:var(--faint)}
.reader-error button{margin-top:10px;padding:9px 16px;border-radius:var(--r-pill);background:var(--ink);color:#fff;font-size:13px}
/* The per-article QA is visually tied to the conclusion of the article. */
.ai-block{margin-top:30px}
.ai-head b{font-size:16.5px}
/* Mobile: reader becomes an intentional full-screen reading surface instead of a floating card. */
@media(max-width:640px){
.overlay{padding:0;display:block;background:var(--card);backdrop-filter:none;-webkit-backdrop-filter:none}
.sheet{
width:100%;min-height:100dvh;border-radius:0;box-shadow:none;
transform:translateY(12px);background:var(--card);
}
.overlay.show .sheet{transform:none}
.sheet-close{
position:fixed;right:12px;top:max(12px,env(safe-area-inset-top));
width:38px;height:38px;background:rgba(255,255,255,.88);z-index:1400;
}
.sheet-cover{aspect-ratio:16/9;border-radius:0}
.sheet-body{padding:24px 20px calc(38px + env(safe-area-inset-bottom))}
.sheet h2{font-size:26px;line-height:1.34}
.sheet-sum{font-size:15px;padding:13px 15px;margin-bottom:25px}
.reader-copy{max-width:none}
.reader-copy .sec p{font-size:15px;line-height:1.82}
.source-main{flex-direction:column;gap:12px}
.source-open{align-self:flex-start}
.reader-end{margin-top:14px}
.ai-block{margin-left:-2px;margin-right:-2px}
}
@media(prefers-reduced-motion:reduce){
.reader-loading-line i{animation:none}
.reader-progress span{transition:none}
}
/* ============================================================
v1.2.2 Product experience pass
- coherent Daily Issue (1 hero + 4 supporting cards)
- clearer search state and keyboard affordances
- shareable reader navigation
- robust mobile header
- crawlable no-JS fact fallback
============================================================ */
/* Search matches: quiet editorial highlight, not browser-neon yellow. */
.search-hit{background:linear-gradient(transparent 56%,rgba(199,165,103,.28) 56%);color:inherit;border-radius:2px;padding:0 .02em}
.empty-actions{display:flex;justify-content:center;gap:9px;margin-top:18px}
.empty-actions button{font-size:12.5px;padding:8px 13px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--muted)}
.empty-actions button:first-child{background:var(--ink);color:#fff;border-color:var(--ink)}
/* Official daily issue: hero owns rank #1; supporting four stay balanced in one row on wide screens. */
.pk-grid.pk-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.pk-grid.pk-5{grid-template-columns:repeat(5,minmax(0,1fr))}
@media(max-width:1080px){.pk-grid.pk-5{grid-template-columns:repeat(3,minmax(0,1fr))}.pk-grid.pk-4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.pk-grid.pk-4,.pk-grid.pk-5{grid-template-columns:1fr 1fr}.pk-title{font-size:15.5px}.pk-sum{-webkit-line-clamp:2}}
@media(max-width:390px){.pk-grid.pk-4,.pk-grid.pk-5{grid-template-columns:1fr}}
/* Reading end: continue the current context rather than throwing the reader to a random item. */
.reader-nav{display:flex;align-items:center;justify-content:flex-end;gap:7px;flex-wrap:wrap}
.reader-nav button{font-size:12px;font-weight:650;padding:7px 10px;border-radius:var(--r-pill);border:1px solid var(--line);background:rgba(255,255,255,.72);color:var(--muted);transition:all .2s var(--ease)}
.reader-nav button:hover:not(:disabled){background:#fff;border-color:var(--gold-3);color:var(--gold-2);transform:translateY(-1px)}
.reader-nav button:disabled{opacity:.38;cursor:default}
.reader-nav .reader-next{background:var(--ink);border-color:var(--ink);color:#fff}
.reader-nav .reader-next:hover:not(:disabled){background:#26262a;color:#fff;border-color:#26262a}
.reader-share{min-width:54px}
/* Header was visually strong on desktop but too dense on small screens. Make search a deliberate second row. */
@media(max-width:760px){
.hdr-in{height:auto;min-height:64px;flex-wrap:wrap;gap:10px 12px;padding-top:10px;padding-bottom:10px}
.brand{order:1}.hdr-auth{order:2;margin-left:auto}.hdr-date{display:none}
.hdr-search{order:3;flex:0 0 100%;width:100%;margin-left:0}
.hdr-search input{height:42px}
.toolbar{top:116px}
body.search-mode .toolbar{top:116px}
.acct-email{display:none!important}
}
@media(max-width:430px){
.brand-tt span{display:none}.brand-tt b{font-size:14.5px}
.acct-hist{padding:6px 9px;margin-right:0}.acct-out{padding-left:7px!important;padding-right:7px!important}
}
/* Crawlable/static fallback for /fact// before JS hydrates, and for no-JS readers/search engines. */
.seo-fact{width:min(760px,calc(100% - 36px));margin:46px auto 70px;color:var(--ink)}
.seo-brand{display:inline-flex;margin-bottom:32px;font-size:13px;font-weight:650;color:var(--gold-2)}
.seo-fact article{background:var(--card);border:1px solid var(--line);border-radius:var(--r-xl);padding:clamp(26px,5vw,52px);box-shadow:var(--sh-sm)}
.seo-meta{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;color:var(--faint);margin-bottom:14px}
.seo-fact h1{font-family:var(--serif);font-size:clamp(28px,5vw,42px);line-height:1.3;margin:0 0 16px}
.seo-summary{font-size:16px;line-height:1.75;color:var(--ink-2);padding:14px 17px;background:var(--bg);border-left:2px solid var(--gold-3);border-radius:var(--r-sm)}
.seo-cover{width:100%;border-radius:var(--r-lg);margin:26px 0;max-height:520px;object-fit:cover}
.seo-fact section{margin:28px 0}.seo-fact section h2{font-family:var(--serif);font-size:18px;margin:0 0 9px}.seo-fact section p{font-size:15.5px;line-height:1.88;color:var(--ink-2);white-space:pre-line}
.seo-source{display:flex;flex-direction:column;align-items:flex-start;gap:5px;margin:32px 0 20px;padding:17px 19px;border:1px solid var(--line);border-radius:var(--r-md);background:rgba(169,130,63,.035);font-size:12.5px;color:var(--muted)}
.seo-source b{font-family:var(--serif);font-size:14px;color:var(--ink)}.seo-source a{color:var(--gold-2);font-weight:650;margin-top:5px}
@media(max-width:640px){
.reader-end{align-items:flex-start;flex-direction:column}.reader-nav{width:100%;justify-content:flex-start}.reader-nav .reader-next{margin-left:auto}
.seo-fact{margin-top:20px}.seo-fact article{border-radius:var(--r-lg);padding:24px 20px}
}
/* Safari/WebKit type=search already draws its own cancel button; hide it because the app has #clr. */
.hdr-search input::-webkit-search-cancel-button{-webkit-appearance:none;appearance:none;display:none}
/* v1.3 trust state */
.trust-badge{display:inline-flex;align-items:center;margin-left:8px;padding:2px 7px;border-radius:999px;font-family:var(--sans);font-size:9.5px;font-weight:700;letter-spacing:.04em;text-transform:none;vertical-align:middle}
.trust-badge.verified{background:#edf5ef;color:#4d7b5b;border:1px solid rgba(77,123,91,.18)}
.trust-badge.pending{background:#f5f1e8;color:#94723a;border:1px solid rgba(148,114,58,.18)}
.trust-badge.review{background:#f8ece9;color:#9b584f;border:1px solid rgba(155,88,79,.18)}
.trust-sources{font-size:10.5px;color:var(--faint);margin-top:2px}
.seo-trust{display:flex;flex-direction:column;gap:3px;margin:8px 0 10px;padding:9px 10px;border-radius:10px;background:#edf5ef;color:#4d7b5b;font-size:12px}
.seo-trust span{color:var(--muted);line-height:1.5}.seo-trust.review{background:#f8ece9;color:#9b584f}.seo-trust.pending{background:#f5f1e8;color:#94723a}
.source-title{font-style:normal;font-size:11.5px;line-height:1.45;color:var(--muted);max-width:48em}
/* ============================================================
v2.0 product architecture — Today / Library / Issues / Verify / My
============================================================ */
.main-nav{display:flex;align-items:center;gap:4px;padding:4px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.72);backdrop-filter:blur(14px)}
.nav-link{appearance:none;border:0;background:transparent;color:var(--muted);font:600 13px/1 var(--sans);padding:9px 13px;border-radius:999px;cursor:pointer;transition:.18s ease}
.nav-link:hover{color:var(--ink);background:var(--paper-2)}.nav-link.on{color:#fff;background:#24201b;box-shadow:0 6px 18px rgba(41,33,24,.13)}
.app-view{display:none}.app-view.on{display:block;animation:viewIn .24s ease both}@keyframes viewIn{from{opacity:.15;transform:translateY(5px)}to{opacity:1;transform:none}}
.issue-intro{display:flex;justify-content:space-between;align-items:flex-end;padding-top:30px;padding-bottom:8px}.issue-date{font:700 13px/1.2 var(--mono);color:var(--faint)}.issue-label{margin-top:8px;color:#8b6940;font:700 12px/1 var(--sans);letter-spacing:.16em}
.issue-progress{min-width:210px;text-align:right}.issue-progress>span{display:block;color:var(--faint);font-size:12px}.issue-progress>b{display:block;margin:5px 0 7px;font:800 25px/1 var(--serif);color:var(--ink)}.progress-dots{display:flex;justify-content:flex-end;gap:7px}.progress-dots i{width:26px;height:4px;border-radius:99px;background:#e5ded3}.progress-dots i.done{background:#9a7646}
.issue-endcap{margin-top:28px;margin-bottom:58px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding-top:30px;padding-bottom:30px;display:flex;align-items:center;justify-content:space-between;gap:30px}.issue-endcap h2{font:800 28px/1.2 var(--serif);margin:8px 0}.issue-endcap p{margin:0;color:var(--muted)}.issue-endcap.complete{background:linear-gradient(90deg,transparent,#f6efe4,transparent)}.issue-endcap.complete h2:before{content:'✓ ';color:#7b6a46}
.section-head{padding-top:48px;padding-bottom:28px;max-width:820px}.section-head h1{font:800 clamp(30px,4vw,50px)/1.13 var(--serif);letter-spacing:-.035em;margin:10px 0 14px}.section-head p{color:var(--muted);font-size:15px;line-height:1.9;margin:0;max-width:680px}
.tag-strip{display:flex;align-items:center;gap:8px;overflow:auto;padding:14px 0 2px;scrollbar-width:none}.tag-strip::-webkit-scrollbar{display:none}.tag-strip-label{font-size:12px;color:var(--faint);white-space:nowrap;margin-right:4px}.tag-pill,.sheet-tags .tg{appearance:none;border:1px solid #e6d9c7;background:#faf7f1;color:#7c5c34;border-radius:999px;padding:7px 11px;font-size:12px;white-space:nowrap;cursor:pointer}.tag-pill:hover,.sheet-tags .tg:hover{background:#f1e7d7;border-color:#cfb58f}.tag-pill small{opacity:.58;margin-left:3px}
.chip small{font-size:10px;opacity:.55;margin-left:3px}
.archive-view,.verify-view,.my-view{min-height:65vh;padding-bottom:80px}.issue-list{border-top:1px solid var(--line)}.issue-row{display:grid;grid-template-columns:130px 1fr 40px;gap:22px;align-items:center;padding:22px 4px;border-bottom:1px solid var(--line);color:inherit;text-decoration:none}.issue-row:hover{background:linear-gradient(90deg,transparent,#faf6ef,transparent)}.issue-day{font:700 13px/1 var(--mono);color:#8b6940}.issue-row-main b{display:block;font:700 19px/1.45 var(--serif);color:var(--ink)}.issue-row-main em{display:block;font-style:normal;font-size:12px;color:var(--faint);margin-top:5px}.issue-arrow{font-size:22px;color:#9b896f;text-align:right}
.verify-card{max-width:880px;border:1px solid var(--line);border-radius:24px;background:#fffdf9;padding:26px;box-shadow:0 16px 50px rgba(58,44,27,.06)}.verify-card label{display:block;font-size:12px;color:var(--faint);font-weight:700;letter-spacing:.05em;margin:2px 0 8px}.verify-card textarea,.verify-card input{box-sizing:border-box;width:100%;border:1px solid #ded5c8;border-radius:14px;background:#fff;padding:14px 16px;font:14px/1.7 var(--sans);color:var(--ink);outline:none;margin-bottom:18px}.verify-card textarea{min-height:130px;resize:vertical}.verify-card textarea:focus,.verify-card input:focus{border-color:#a98454;box-shadow:0 0 0 3px rgba(169,132,84,.1)}.verify-actions{display:flex;align-items:center;gap:14px}.verify-status{font-size:13px;color:var(--muted)}.verify-result{margin-top:24px;padding-top:22px;border-top:1px solid var(--line)}.verify-verdict{display:flex;align-items:baseline;justify-content:space-between;gap:20px;padding:16px 18px;border-radius:14px}.verify-verdict.supported{background:#eef6f0;color:#3f6c4b}.verify-verdict.unsupported{background:#faf0ee;color:#8a4d42}.verify-verdict.insufficient{background:#f7f1e8;color:#80633e}.verify-verdict b{font:800 20px/1.2 var(--serif)}.verify-verdict span{font-size:12px}.claim-list>div{padding:14px 0;border-bottom:1px dashed var(--line)}.claim-list strong{font-size:14px}.claim-status{float:right;font-size:11px;text-transform:uppercase;border-radius:99px;padding:4px 8px;background:#f1eee9;color:var(--muted)}.claim-list p{margin:7px 0 0;color:var(--muted);font-size:13px;line-height:1.7}.verify-sources{margin-top:18px;display:grid;gap:7px}.verify-sources b{font-size:12px;color:var(--faint)}.verify-sources a{color:#795a33;text-decoration:none;font-size:13px}
.my-kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:0 0 26px}.my-kpis>div{border:1px solid var(--line);border-radius:18px;padding:20px;background:#fffdf9}.my-kpis b{display:block;font:800 34px/1 var(--serif)}.my-kpis span{display:block;margin-top:8px;color:var(--faint);font-size:12px}.my-block{border-top:1px solid var(--line);padding:24px 0}.my-block h2{font:700 20px/1.3 var(--serif);margin:0 0 14px}.my-fav-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.my-fav-grid button{appearance:none;text-align:left;border:1px solid var(--line);background:#fff;border-radius:14px;padding:14px;cursor:pointer}.my-fav-grid button:hover{border-color:#bda37d;background:#fdf9f3}.my-fav-grid b{display:block;color:var(--ink);font-size:14px;line-height:1.45}.my-fav-grid span{display:block;color:var(--muted);font-size:12px;line-height:1.55;margin-top:6px}.my-verify-row{display:flex;justify-content:space-between;gap:20px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:13px}.my-verify-row span{color:#8b6940}.my-empty{border:1px dashed #d9ccb9;border-radius:20px;padding:32px;text-align:center;color:var(--muted)}.my-empty b{display:block;color:var(--ink);font:700 22px/1.35 var(--serif)}.my-empty p,.my-muted{color:var(--muted);line-height:1.8}
.reader-fav{appearance:none;border:1px solid var(--line);background:#fff;color:#5f5549;border-radius:999px;padding:9px 13px;cursor:pointer}.reader-fav.on{background:#f7e9e6;color:#9a4b47;border-color:#eccac5}.ai-locked{padding:22px;border:1px solid #e5d8c7;background:#faf6ef;border-radius:18px}.ai-locked b{display:block;font:700 17px/1.3 var(--serif);margin-bottom:7px}.ai-locked span{color:var(--muted);font-size:13px;line-height:1.75}
.seo-collection{max-width:900px;margin:0 auto;padding:50px 22px 100px}.seo-collection h1{font:800 46px/1.15 Georgia,serif}.seo-list{display:grid;gap:10px;margin-top:30px}.seo-list-card{border:1px solid #e8ded0;border-radius:14px;padding:16px;background:#fff}.seo-list-card a{color:#211d18;text-decoration:none}.seo-list-card b{display:block;font-size:17px}.seo-list-card span{display:block;color:#74695d;font-size:13px;line-height:1.6;margin-top:5px}.issue-static-row{display:grid;grid-template-columns:40px 1fr;gap:12px;align-items:start}.issue-static-row>span{color:#9a7646;font:700 13px/1.5 monospace}
@media(max-width:1080px){.hdr-in{flex-wrap:wrap}.main-nav{order:4;width:100%;justify-content:center}.hdr-search{flex:1}.my-fav-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){.hdr-in{gap:10px}.brand{flex:1}.hdr-search{order:3;width:100%;flex-basis:100%}.main-nav{order:4;justify-content:space-between;overflow:auto}.nav-link{padding:9px 12px}.issue-intro{align-items:flex-start}.issue-progress{min-width:130px}.issue-endcap{align-items:flex-start;flex-direction:column}.section-head{padding-top:34px}.issue-row{grid-template-columns:92px 1fr 24px;gap:10px}.my-kpis{grid-template-columns:repeat(2,1fr)}.my-fav-grid{grid-template-columns:1fr}.verify-card{padding:18px}.verify-actions{align-items:flex-start;flex-direction:column}.reader-nav{flex-wrap:wrap}.reader-fav{order:-1}.site-foot{padding-bottom:72px}}
.knowledge-map{display:grid;gap:11px;max-width:720px}.knowledge-map>div{display:grid;grid-template-columns:100px 1fr 42px;gap:10px;align-items:center}.knowledge-map span{font-size:13px;color:var(--ink)}.knowledge-map i{height:8px;border-radius:99px;background:#eee8df;overflow:hidden}.knowledge-map i b{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#7c6547,#b58d58)}.knowledge-map em{font:600 12px/1 var(--mono);font-style:normal;color:var(--faint);text-align:right}
/* Temporary limited AI chat for legacy unverified facts */
.ai-block.ai-caution{border-color:#e5d4b8;background:#fbf7ef}
.ai-block.ai-caution .ai-note{color:#79684f}
/* ============================================================
v2.3 Interactive Reading · AI typography + streaming polish
============================================================ */
/* AI 回答不再使用“默认聊天气泡”排版；长回答按阅读文本处理。 */
.qa-a{
font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",var(--sans);
font-size:15.5px;
line-height:1.92;
letter-spacing:.012em;
color:#3b352f;
text-rendering:optimizeLegibility;
-webkit-font-smoothing:antialiased;
}
.qa-a .ai-answer-copy{max-width:44em}
.qa-a p{margin:0 0 15px}
.qa-a p:last-child{margin-bottom:0}
.qa-a b,.qa-a strong{font-weight:600;color:#26221e}
.qa-a em{font-style:normal;color:#7d6038}
.qa-a ul,.qa-a ol{margin:8px 0 16px;padding-left:1.35em}
.qa-a li{margin:5px 0;padding-left:.12em}
.qa-a .term{
color:#356b9a;
text-decoration-color:rgba(53,107,154,.28);
text-underline-offset:3px;
font-weight:500;
}
.ai-notice,
.ai-quote{
display:flex;
align-items:flex-start;
gap:10px;
margin:2px 0 16px;
padding:11px 13px;
border:1px solid #e7d8bf;
border-left:3px solid #c49a5c;
border-radius:11px;
background:#fbf7ef;
color:#6c5b45;
font-family:var(--sans);
font-size:13px;
line-height:1.72;
letter-spacing:0;
}
.ai-quote{display:block}
.ai-notice-ic{
flex:0 0 auto;
width:18px;height:18px;border-radius:50%;
display:grid;place-items:center;
background:#eadcc5;color:#80623b;
font:700 11px/1 var(--sans);
margin-top:2px;
}
.ai-stream-caret{
display:inline-block;width:2px;height:1.05em;margin-left:3px;
vertical-align:-.12em;background:#a9823f;border-radius:2px;
animation:cfCaret .8s steps(1,end) infinite;
}
@keyframes cfCaret{50%{opacity:.18}}
@media (prefers-reduced-motion:reduce){.ai-stream-caret{animation:none}}
@media (max-width:760px){
.qa-a{font-size:15px;line-height:1.88;letter-spacing:.008em;padding-left:14px;padding-right:14px}
.qa-a .ai-answer-copy{max-width:none}
}
/* ============================================================
v2.4 Immersive Reader · full-screen editorial reading surface
Desktop: fixed visual rail + independently scrolling article.
Tablet/mobile: compact fixed hero + scrollable reading pane.
============================================================ */
body.reader-open{overflow:hidden!important}
body.reader-open .overlay{
padding:0;
display:block;
overflow:hidden;
background:rgba(18,18,20,.52);
backdrop-filter:blur(14px) saturate(.82);
-webkit-backdrop-filter:blur(14px) saturate(.82);
}
body.reader-open .sheet{
--reader-scale:1;
width:100vw;
max-width:none;
height:100dvh;
border-radius:0;
box-shadow:none;
overflow:hidden;
display:grid;
grid-template-columns:minmax(360px,43vw) minmax(0,1fr);
background:#fcfaf6;
transform:none;
transition:grid-template-columns .34s var(--ease),opacity .2s var(--ease);
}
body.reader-open .overlay.show .sheet{transform:none}
/* Fixed visual rail. Only the reading pane scrolls. */
.reader-visual{
min-width:0;
height:100dvh;
position:relative;
overflow:hidden;
background:#171719;
isolation:isolate;
}
.reader-visual .sheet-cover{
position:absolute;
inset:0;
width:100%;height:100%;
aspect-ratio:auto;
border-radius:0;
overflow:hidden;
}
.reader-visual .sheet-cover svg,
.reader-visual .sheet-cover .photo{width:100%;height:100%;object-fit:cover}
.reader-visual .sheet-cover .photo{transform:scale(1.002);transition:opacity .55s var(--ease),transform 1.2s var(--ease)}
.reader-visual-vignette{
position:absolute;inset:0;z-index:2;pointer-events:none;
background:linear-gradient(180deg,rgba(12,12,14,.16) 0%,transparent 28%,transparent 62%,rgba(12,12,14,.62) 100%);
}
.reader-visual-top,.reader-visual-bottom{position:absolute;z-index:3;left:30px;right:30px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:18px;text-shadow:0 1px 20px rgba(0,0,0,.32)}
.reader-visual-top{top:28px;font-family:var(--mono);font-size:10px;letter-spacing:.18em;color:rgba(255,255,255,.76)}
.reader-visual-top b{font-family:var(--serif);font-size:25px;letter-spacing:0;color:#fff;font-weight:600}
.reader-visual-bottom{bottom:28px;align-items:flex-end}
.reader-visual-cat{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:650}
.reader-visual-cat i{width:8px;height:8px;border-radius:50%;background:var(--reader-cat,#b48a53);box-shadow:0 0 0 5px rgba(255,255,255,.1)}
.reader-trust{display:inline-flex;align-items:center;padding:6px 9px;border-radius:999px;font-size:10.5px;font-weight:700;backdrop-filter:blur(8px);background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.2)}
.reader-trust.verified{background:rgba(47,111,69,.34)}
.reader-trust.review{background:rgba(150,94,37,.34)}
.reader-trust.pending{background:rgba(95,88,78,.38)}
/* Right reading pane */
.reader-scroll{
min-width:0;
height:100dvh;
overflow-y:auto;
overflow-x:hidden;
overscroll-behavior:contain;
scrollbar-gutter:stable;
scroll-behavior:smooth;
background:linear-gradient(180deg,#fcfaf6 0%,#fff 22%,#fff 100%);
}
.reader-toolbar{
position:sticky;top:0;z-index:30;
min-height:64px;
box-sizing:border-box;
display:grid;
grid-template-columns:minmax(180px,1fr) auto auto;
align-items:center;
gap:16px;
padding:10px clamp(18px,2.4vw,34px);
border-bottom:1px solid transparent;
background:rgba(252,250,246,.82);
backdrop-filter:blur(18px) saturate(1.1);
-webkit-backdrop-filter:blur(18px) saturate(1.1);
transition:border-color .2s,box-shadow .2s,background .2s;
}
.reader-toolbar.scrolled{border-bottom-color:rgba(111,90,61,.13);box-shadow:0 8px 30px rgba(45,34,21,.045);background:rgba(252,250,246,.94)}
.reader-toolbar-start{display:flex;align-items:center;gap:12px;min-width:0}
.reader-close{
width:38px;height:38px;flex:0 0 auto;border-radius:50%;
display:grid;place-items:center;border:1px solid var(--line);background:rgba(255,255,255,.82);color:var(--ink);
font-size:18px;transition:transform .18s,background .18s,border-color .18s;
}
.reader-close:hover{background:#fff;border-color:#cdb58e;transform:translateX(-2px)}
.reader-toolbar-title{min-width:0;display:flex;flex-direction:column;gap:2px}
.reader-toolbar-title span{font-family:var(--mono);font-size:8.5px;letter-spacing:.14em;color:var(--faint)}
.reader-toolbar-title b{font-family:var(--serif);font-size:13px;font-weight:650;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;opacity:.52;transition:opacity .2s}
.reader-toolbar.scrolled .reader-toolbar-title b{opacity:1}
.reader-toolbar-jumps{display:flex;align-items:center;gap:2px;padding:3px;border:1px solid var(--line-2);border-radius:999px;background:rgba(255,255,255,.55)}
.reader-toolbar-jumps button,.reader-tool{appearance:none;border:0;background:transparent;color:var(--muted);font-size:11.5px;font-weight:650;border-radius:999px;padding:7px 10px;transition:background .18s,color .18s}
.reader-toolbar-jumps button:hover,.reader-tool:hover{background:#fff;color:var(--gold-2)}
.reader-toolbar-actions{display:flex;align-items:center;justify-content:flex-end;gap:3px}
.reader-percent{font-family:var(--mono);font-size:9.5px;color:var(--faint);min-width:33px;text-align:right;margin-right:4px}
.reader-focus-btn[aria-pressed="true"]{background:var(--ink);color:#fff}
.reader-progress{z-index:1600;height:2px}
.reader-progress span{background:linear-gradient(90deg,#8b6940,#d0ad76)}
body.reader-open .sheet-body{
box-sizing:border-box;
width:min(820px,calc(100% - clamp(44px,8vw,112px)));
margin:0 auto;
padding:clamp(44px,6vh,72px) 0 84px;
}
body.reader-open .sheet h2{
font-size:calc(clamp(34px,4.1vw,58px) * var(--reader-scale));
line-height:1.12;
letter-spacing:-.035em;
max-width:13em;
margin-bottom:24px;
text-wrap:balance;
}
body.reader-open .sheet-eyebrow{margin-bottom:18px;gap:10px}
.reader-takeaway{
margin:0 0 34px;
padding:18px 20px 19px;
border-left:2px solid var(--gold-3);
border-radius:0 14px 14px 0;
background:linear-gradient(90deg,rgba(169,130,63,.075),rgba(169,130,63,.025));
}
.reader-takeaway>span{display:block;margin-bottom:7px;font-family:var(--mono);font-size:9px;letter-spacing:.15em;color:var(--gold-2);font-weight:700}
.reader-takeaway p{margin:0;color:#4a4035;font-size:calc(15.5px * var(--reader-scale));line-height:1.82}
.reader-section-index{
display:flex;gap:7px;overflow-x:auto;scrollbar-width:none;
margin:0 0 42px;padding:0 0 8px;
border-bottom:1px solid var(--line-2);
}
.reader-section-index::-webkit-scrollbar{display:none}
.reader-section-index button{
flex:0 0 auto;display:flex;align-items:center;gap:7px;
padding:8px 10px;border-radius:10px;background:transparent;border:1px solid transparent;color:var(--muted);font-size:11.5px;transition:all .18s;
}
.reader-section-index button span{font-family:var(--mono);font-size:8px;letter-spacing:.12em;color:var(--gold-2)}
.reader-section-index button:hover{background:#faf6ef;border-color:#eadfce;color:var(--ink)}
body.reader-open .reader-copy{max-width:720px}
body.reader-open .reader-copy .sec{scroll-margin-top:92px;margin-bottom:44px}
body.reader-open .reader-copy .sec-h{margin-bottom:13px}
body.reader-open .reader-copy .sec-h .lbl{font-size:9px}
body.reader-open .reader-copy .sec-h .nm{font-size:calc(18px * var(--reader-scale));font-weight:650}
body.reader-open .reader-copy .sec p{
font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",var(--sans);
font-size:calc(16.5px * var(--reader-scale));
line-height:1.94;
letter-spacing:.016em;
color:#3f3831;
text-align:justify;
text-justify:inter-ideograph;
}
#readerSource,#readerAI,#readerArticle{scroll-margin-top:82px}
#readerSource{margin-top:34px}
#readerAI{margin-top:34px}
body.reader-open .source-card{border-radius:16px;padding:20px 22px;background:linear-gradient(180deg,#fcf9f3,#fff)}
body.reader-open .ai-block{border-radius:18px;padding:22px 22px 20px}
body.reader-open .qa-a{font-size:calc(15.8px * var(--reader-scale));line-height:1.95}
body.reader-open .qa-a .ai-answer-copy{max-width:48em}
body.reader-open .reader-end{margin-top:34px;padding-top:20px}
/* Focus mode: one click removes the visual rail and centers a wider article. */
body.reader-open .sheet.reader-focus{grid-template-columns:1fr}
body.reader-open .sheet.reader-focus .reader-visual{display:none}
body.reader-open .sheet.reader-focus .sheet-body{width:min(880px,calc(100% - 72px))}
.reader-error{height:calc(100dvh - 64px);box-sizing:border-box}
/* Tablet: preserve the image, but cap its height so it never steals the whole viewport. */
@media(max-width:980px){
body.reader-open .sheet{grid-template-columns:1fr;grid-template-rows:minmax(190px,32vh) minmax(0,1fr)}
.reader-visual{height:auto;min-height:0}
.reader-scroll{height:auto;min-height:0}
.reader-visual-top{display:none}
.reader-visual-bottom{left:20px;right:20px;bottom:16px}
.reader-toolbar{grid-template-columns:minmax(160px,1fr) auto;min-height:58px;padding:8px 16px}
.reader-toolbar-jumps{display:none}
body.reader-open .sheet-body{width:min(760px,calc(100% - 40px));padding:30px 0 64px}
body.reader-open .sheet h2{font-size:calc(clamp(29px,6vw,44px) * var(--reader-scale))}
}
@media(max-width:640px){
body.reader-open .sheet{grid-template-rows:200px minmax(0,1fr)}
.reader-toolbar{grid-template-columns:1fr auto;gap:8px;padding:7px 12px;min-height:54px}
.reader-toolbar-title span{display:none}
.reader-toolbar-title b{font-size:12px}
.reader-toolbar-actions .reader-percent,.reader-toolbar-actions #readerFontDown,.reader-toolbar-actions #readerFontUp{display:none}
.reader-tool{padding:6px 8px;font-size:11px}
.reader-close{width:36px;height:36px}
.reader-visual-bottom{left:16px;right:16px;bottom:12px}
body.reader-open .sheet-body{width:calc(100% - 34px);padding:26px 0 calc(54px + env(safe-area-inset-bottom))}
body.reader-open .sheet h2{font-size:calc(30px * var(--reader-scale));line-height:1.18}
.reader-takeaway{margin-bottom:26px;padding:15px 16px}
.reader-section-index{margin-bottom:30px}
body.reader-open .reader-copy .sec{margin-bottom:36px;scroll-margin-top:70px}
body.reader-open .reader-copy .sec p{font-size:calc(15.5px * var(--reader-scale));line-height:1.9;text-align:left}
#readerSource,#readerAI,#readerArticle{scroll-margin-top:64px}
body.reader-open .ai-block{padding:18px 16px}
}
@media(prefers-reduced-motion:reduce){
.reader-scroll{scroll-behavior:auto}
.reader-close,.reader-tool,.reader-section-index button{transition:none}
}
/* ============================================================
v2.5 Reader 2.0 · benchmarked editorial reading system
Cover mode -> reading mode -> on-demand AI sidecar.
Principles: content first, minimal persistent chrome, keyboard/focus safe.
============================================================ */
body.reader-open{overflow:hidden!important}
body.reader-open .overlay{
padding:0!important;
display:block!important;
overflow:hidden!important;
background:rgba(18,17,16,.44)!important;
backdrop-filter:blur(10px) saturate(.88);
-webkit-backdrop-filter:blur(10px) saturate(.88);
}
body.reader-open .sheet{
--reader-scale:1;
position:relative;
display:block!important;
width:100vw!important;
max-width:none!important;
height:100dvh!important;
max-height:none!important;
margin:0!important;
border:0!important;
border-radius:0!important;
overflow:hidden!important;
background:#fff!important;
box-shadow:none!important;
transform:none!important;
}
body.reader-open .overlay.show .sheet{transform:none!important}
/* persistent chrome: only back, title/progress, ask/favorite/share/more */
body.reader-open .reader-toolbar{
position:absolute!important;
inset:0 0 auto 0;
z-index:80;
height:64px;
min-height:64px!important;
box-sizing:border-box;
display:grid!important;
grid-template-columns:minmax(180px,1fr) auto minmax(180px,1fr)!important;
align-items:center;
gap:16px!important;
padding:9px clamp(14px,2vw,28px)!important;
border-bottom:1px solid rgba(84,68,48,.09)!important;
background:rgba(253,251,247,.90)!important;
backdrop-filter:blur(18px) saturate(1.08);
-webkit-backdrop-filter:blur(18px) saturate(1.08);
box-shadow:0 1px 0 rgba(255,255,255,.7);
}
.reader-toolbar-start{display:flex;align-items:center;gap:12px;min-width:0}
.reader-close{
width:38px!important;height:38px!important;flex:0 0 auto;
display:grid!important;place-items:center;
padding:0!important;border-radius:50%!important;
border:1px solid #e8e0d5!important;background:#fff!important;color:#24201c!important;
font-size:18px!important;line-height:1!important;
transition:transform .16s ease,border-color .16s ease,box-shadow .16s ease!important;
}
.reader-close:hover{transform:translateX(-2px);border-color:#cdb58e!important;box-shadow:0 6px 18px rgba(57,44,28,.07)}
.reader-toolbar-title{min-width:0;display:flex;flex-direction:column;gap:1px}
.reader-toolbar-title span{font:600 8px/1.2 var(--mono);letter-spacing:.16em;color:#a49685}
.reader-toolbar-title b{max-width:34vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-family:var(--serif);font-size:13px;font-weight:600;color:#28231e;opacity:.28;transition:opacity .18s ease}
.reader-toolbar.reading .reader-toolbar-title b{opacity:1}
.reader-toolbar-progress{justify-self:center;font:600 10px/1 var(--mono);letter-spacing:.05em;color:#9a8d7d;min-width:38px;text-align:center}
.reader-toolbar-actions{display:flex!important;align-items:center!important;justify-content:flex-end!important;gap:4px!important}
.reader-tool,.reader-more{
appearance:none;border:0;background:transparent;color:#62594f;
min-height:36px;padding:7px 10px;border-radius:9px;
font-family:var(--sans);font-size:12px;font-weight:600;
transition:background .16s ease,color .16s ease,transform .16s ease;
}
.reader-tool:hover,.reader-more:hover{background:#f6f1ea;color:#7c5d34}
.reader-tool.reader-ask{background:#24211d;color:#fff;padding-inline:14px}
.reader-tool.reader-ask:hover{background:#3a3229;color:#fff}
.reader-top-fav{font-size:17px;min-width:38px;padding:6px 9px}
.reader-top-fav.on{color:#a06e32;background:#f7efe3}
.reader-more{font-family:var(--mono);font-size:12px;letter-spacing:.08em;min-width:38px}
.reader-more-menu{
position:absolute;right:18px;top:55px;z-index:90;width:220px;
padding:9px;border:1px solid #e8e0d5;border-radius:14px;background:rgba(255,255,255,.98);
box-shadow:0 18px 56px rgba(54,42,27,.16);color:#423b33;
}
.reader-more-menu[hidden]{display:none!important}
.reader-more-menu>button,.reader-more-group button{
width:100%;border:0;background:transparent;border-radius:9px;padding:9px 10px;text-align:left;
font:600 12px/1.3 var(--sans);color:#554c42;
}
.reader-more-menu>button:hover,.reader-more-group button:hover{background:#f7f2eb;color:#7b5b32}
.reader-more-group{padding:7px 8px 8px}.reader-more-group>span{display:block;margin-bottom:7px;font:600 9px/1 var(--mono);letter-spacing:.12em;color:#9a8b78}
.reader-more-group>div{display:grid;grid-template-columns:1fr 1.25fr 1fr;gap:5px}.reader-more-group button{text-align:center;border:1px solid #ece4d9}
.reader-more-sep{height:1px;background:#eee7dd;margin:5px 4px}
.reader-progress{position:absolute!important;top:63px!important;left:0;right:0;z-index:79;height:2px!important;background:transparent!important;transform:none!important}
.reader-progress span{display:block;height:100%;transform:scaleX(0);transform-origin:left;background:linear-gradient(90deg,#8e6a3b,#c9a26d);will-change:transform}
/* one scrolling surface. hero is contextual and naturally leaves the viewport. */
body.reader-open .reader-scroll{
position:absolute!important;
inset:64px 0 0 0!important;
width:auto!important;height:auto!important;
margin:0!important;padding:0!important;
overflow-y:auto!important;overflow-x:hidden!important;
overscroll-behavior:contain;
scrollbar-gutter:stable;
scroll-behavior:smooth;
background:#fff!important;
transition:right .26s ease;
}
.reader-cover{
position:relative;height:clamp(330px,52vh,610px);min-height:330px;overflow:hidden;
background:#171717;isolation:isolate;
}
.reader-cover-media{position:absolute;inset:0;overflow:hidden;background:#191919}
.reader-cover-media svg,.reader-cover-media .photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.reader-cover-media .photo{opacity:0;transform:scale(1.004);transition:opacity .45s ease,transform 1.1s ease}
.reader-cover-media .photo.on{opacity:1}
.reader-cover-shade{position:absolute;inset:0;z-index:2;background:linear-gradient(180deg,rgba(12,12,12,.18),transparent 38%,transparent 58%,rgba(9,9,9,.58))}
.reader-cover-top,.reader-cover-bottom{position:absolute;z-index:3;left:clamp(22px,4vw,58px);right:clamp(22px,4vw,58px);display:flex;align-items:center;justify-content:space-between;color:#fff;text-shadow:0 1px 18px rgba(0,0,0,.3)}
.reader-cover-top{top:28px;font:600 10px/1 var(--mono);letter-spacing:.18em;color:rgba(255,255,255,.78)}
.reader-cover-top b{font:600 27px/1 var(--serif);letter-spacing:0;color:#fff}
.reader-cover-bottom{bottom:26px;align-items:flex-end}
.reader-cover-cat{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:650}.reader-cover-cat i{width:8px;height:8px;border-radius:50%;background:var(--reader-cat,#b48a53);box-shadow:0 0 0 5px rgba(255,255,255,.11)}
.reader-trust{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;font-size:10.5px;font-weight:700;color:#fff;border:1px solid rgba(255,255,255,.24);background:rgba(25,25,25,.28);backdrop-filter:blur(7px)}
.reader-trust.verified{background:rgba(41,104,66,.42)}.reader-trust.review{background:rgba(151,99,39,.42)}.reader-trust.pending{background:rgba(82,76,68,.44)}
/* editorial article rhythm */
body.reader-open .sheet-body{
box-sizing:border-box!important;
width:min(820px,calc(100% - clamp(40px,10vw,144px)))!important;
margin:0 auto!important;
padding:clamp(48px,7vh,82px) 0 110px!important;
}
.reader-article-head{margin-bottom:46px}
body.reader-open .sheet-eyebrow{display:flex;align-items:center;gap:9px;margin:0 0 18px;font-size:12px;color:#958879}
body.reader-open .sheet-eyebrow .dot{width:3px;height:3px;border-radius:50%;background:#b3a99d}
body.reader-open .sheet h2{
margin:0 0 28px!important;max-width:12.4em!important;
font-family:var(--serif)!important;font-size:calc(clamp(38px,4.2vw,56px) * var(--reader-scale))!important;
line-height:1.12!important;letter-spacing:-.035em!important;font-weight:600!important;color:#1e1b18!important;text-wrap:balance;
}
.reader-takeaway{margin:0!important;padding:18px 20px 19px!important;border:0!important;border-left:2px solid #b68a50!important;border-radius:0 12px 12px 0!important;background:linear-gradient(90deg,#faf6ef,#fdfbf8)!important}
.reader-takeaway>span{display:block;margin-bottom:8px;font:700 9px/1 var(--mono);letter-spacing:.14em;color:#9a7443}
.reader-takeaway p{margin:0!important;font-size:calc(15.5px * var(--reader-scale));line-height:1.82;color:#4c4339}
body.reader-open .reader-copy{max-width:720px;margin:0}
body.reader-open .reader-copy .sec{scroll-margin-top:86px;margin:0 0 48px}
body.reader-open .reader-copy .sec-h{display:flex;align-items:baseline;gap:11px;margin-bottom:13px}
body.reader-open .reader-copy .sec-h .lbl{font:700 9px/1 var(--mono);letter-spacing:.14em;color:#9b7544}
body.reader-open .reader-copy .sec-h .nm{font-family:var(--serif);font-size:calc(18px * var(--reader-scale));font-weight:600;color:#2a251f}
body.reader-open .reader-copy .sec p{
margin:0;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",var(--sans);
font-size:calc(16.5px * var(--reader-scale));line-height:1.94;letter-spacing:.012em;color:#3f3932;text-align:left;
text-wrap:pretty;
}
body.reader-open .sheet-tags{margin:42px 0 28px}
#readerSource,#readerArticle{scroll-margin-top:82px}
#readerSource{margin-top:18px}
body.reader-open .source-card{border-radius:16px;padding:20px 22px;background:linear-gradient(180deg,#fcf9f3,#fff);border-color:#ebe1d2}
body.reader-open .reader-end{margin:30px 0 0;padding:20px 0 0;border-top:1px solid #eee8df;display:flex;align-items:center;justify-content:space-between;gap:16px;color:#a09689;font:600 10px/1 var(--mono);letter-spacing:.1em}
body.reader-open .reader-nav{display:flex;gap:8px}.reader-prev,.reader-next{border:1px solid #e8e0d6;background:#fff;color:#554c42;border-radius:999px;padding:8px 13px;font-size:12px;font-weight:600}.reader-next{background:#24211d;color:#fff;border-color:#24211d}.reader-prev:disabled,.reader-next:disabled{opacity:.35}
/* knowledge path: finite and purposeful, not an infinite feed */
.reader-path{margin-top:64px;padding-top:36px;border-top:1px solid #ece5dc}
.reader-path-head{max-width:560px;margin-bottom:20px}.reader-path-head>span,.reader-ask-teaser>div>span{font:700 9px/1 var(--mono);letter-spacing:.15em;color:#9b7544}.reader-path-head h3,.reader-ask-teaser h3{font:600 24px/1.25 var(--serif);margin:9px 0 7px;color:#26221d}.reader-path-head p,.reader-ask-teaser p{margin:0;color:#8a7e70;font-size:13px;line-height:1.65}
.reader-path-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.reader-path-card{display:grid;grid-template-columns:76px 1fr;gap:12px;align-items:center;text-align:left;padding:9px;border:1px solid #ebe4da;border-radius:14px;background:#fff;transition:border-color .16s,transform .16s,box-shadow .16s}.reader-path-card:hover{transform:translateY(-2px);border-color:#d8c7ae;box-shadow:0 12px 28px rgba(54,42,27,.07)}
.reader-path-img{width:76px;height:64px;border-radius:10px;overflow:hidden;background:#f0ece6}.reader-path-img img{width:100%;height:100%;object-fit:cover}.reader-path-copy{min-width:0;display:flex;flex-direction:column;gap:3px}.reader-path-copy small{font-size:10px;font-weight:700}.reader-path-copy b{font-family:var(--serif);font-size:14px;line-height:1.35;font-weight:600;color:#302a24;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.reader-path-copy em{font-style:normal;font-size:10px;color:#aaa095}
/* ask teaser stays quiet until the reader asks for it */
.reader-ask-teaser{position:relative;margin-top:56px;padding:28px;border:1px solid #e8dcc9;border-radius:18px;background:#fbf7ef}
.reader-ask-prompts{display:flex;flex-wrap:wrap;gap:7px;margin:18px 0}.reader-ask-prompts button{border:1px solid #e6d9c5;background:#fff;color:#655b50;border-radius:999px;padding:7px 11px;font-size:12px;text-align:left}.reader-ask-prompts button:hover{border-color:#c9a875;color:#7f5c2e}.reader-ask-open{border:0;border-radius:999px;background:#25211d;color:#fff;padding:10px 15px;font-size:12.5px;font-weight:650}
/* AI sidecar: on demand. Desktop pushes content, mobile becomes full subview. */
.reader-ai-sidecar{
position:absolute;z-index:75;top:64px;right:0;bottom:0;width:min(460px,42vw);box-sizing:border-box;
transform:translateX(102%);transition:transform .26s ease;
background:#fff;border-left:1px solid #e8e1d8;box-shadow:-20px 0 54px rgba(52,41,28,.10);
display:flex;flex-direction:column;
}
.sheet.reader-ai-open .reader-ai-sidecar{transform:translateX(0)}
@media(min-width:1081px){.sheet.reader-ai-open .reader-scroll{right:min(460px,42vw)!important}}
.reader-ai-head{height:62px;flex:0 0 auto;box-sizing:border-box;padding:12px 16px 11px 18px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #eee7de}.reader-ai-head div{display:flex;flex-direction:column;gap:2px}.reader-ai-head span{font:700 8px/1 var(--mono);letter-spacing:.14em;color:#a08158}.reader-ai-head b{font:600 14px/1.3 var(--serif);color:#2c2722}.reader-ai-head button{width:34px;height:34px;border:1px solid #e7dfd5;background:#fff;border-radius:50%;font-size:18px;color:#6c6258}
.reader-ai-body{min-height:0;flex:1;overflow-y:auto;padding:18px 18px 24px;background:linear-gradient(180deg,#fff,#fcfaf7)}
.reader-ai-sidecar .ai-block{margin:0;border:0!important;background:transparent!important;padding:0!important;border-radius:0!important}.reader-ai-sidecar .ai-head{margin-top:0}.reader-ai-sidecar .ai-note{font-size:12px;line-height:1.65}.reader-ai-sidecar .ai-input-row{position:sticky;bottom:0;padding-top:12px;background:linear-gradient(180deg,rgba(252,250,247,0),#fcfaf7 24%)}
.reader-ai-sidecar .qa-a{font-size:calc(15px * var(--reader-scale));line-height:1.9}
/* text selection actions */
.reader-selection-tools{position:fixed;z-index:1200;display:flex;gap:2px;padding:4px;border-radius:11px;background:#24211d;box-shadow:0 10px 30px rgba(0,0,0,.22)}
.reader-selection-tools[hidden]{display:none!important}.reader-selection-tools button{border:0;background:transparent;color:#fff;padding:7px 10px;border-radius:8px;font-size:11.5px;font-weight:600}.reader-selection-tools button:hover{background:rgba(255,255,255,.13)}
.reader-error{min-height:55vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:40px;text-align:center}.reader-error b{font:600 22px/1.3 var(--serif)}.reader-error span{font-size:13px;color:#8c8175}.reader-error button{margin-top:8px;border:0;border-radius:999px;background:#24211d;color:#fff;padding:10px 16px}
/* keyboard focus is explicit and never removed */
body.reader-open button:focus-visible,body.reader-open a:focus-visible{outline:2px solid #2f6fa4!important;outline-offset:3px!important}
/* tablet + phone: shorter cover, minimal toolbar, full-width AI subview */
@media(max-width:1080px){
.reader-cover{height:clamp(270px,38vh,420px);min-height:270px}
body.reader-open .sheet-body{width:min(760px,calc(100% - 40px))!important;padding:40px 0 84px!important}
.reader-toolbar{grid-template-columns:minmax(120px,1fr) auto minmax(120px,1fr)!important;padding-inline:12px!important}.reader-toolbar-title b{max-width:34vw}
.reader-ai-sidecar{width:100%;left:0;transform:translateY(102%);border-left:0;border-top:1px solid #e8e1d8}.sheet.reader-ai-open .reader-ai-sidecar{transform:translateY(0)}
}
@media(max-width:680px){
body.reader-open .reader-toolbar{height:58px;min-height:58px!important;grid-template-columns:1fr auto!important;gap:8px!important;padding:7px 10px!important}.reader-progress{top:57px!important}.reader-scroll{top:58px!important}
.reader-toolbar-progress{display:none}.reader-toolbar-title span{display:none}.reader-toolbar-title b{max-width:48vw;font-size:12px}.reader-toolbar-actions{gap:1px!important}.reader-tool{padding:6px 8px;font-size:11px}.reader-tool.reader-ask{padding-inline:11px}.reader-top-fav,.reader-toolbar-actions #readerTopShare{display:none}.reader-more{padding-inline:7px}
.reader-cover{height:230px;min-height:230px}.reader-cover-top{display:none}.reader-cover-bottom{left:16px;right:16px;bottom:13px}
body.reader-open .sheet-body{width:calc(100% - 32px)!important;padding:30px 0 72px!important}.reader-article-head{margin-bottom:38px}body.reader-open .sheet h2{font-size:calc(31px * var(--reader-scale))!important;line-height:1.16!important;margin-bottom:22px!important}.reader-takeaway{padding:15px 16px 16px!important}.reader-takeaway p{font-size:calc(15px * var(--reader-scale))}
body.reader-open .reader-copy .sec{margin-bottom:38px}body.reader-open .reader-copy .sec p{font-size:calc(15.5px * var(--reader-scale));line-height:1.9}
.reader-path-grid{grid-template-columns:1fr}.reader-path{margin-top:50px}.reader-ask-teaser{margin-top:46px;padding:20px 18px}.reader-ask-prompts{display:grid;grid-template-columns:1fr}.reader-ask-prompts button{border-radius:12px}
.reader-ai-sidecar{top:58px}.reader-ai-head{height:56px}.reader-ai-body{padding:14px 14px 18px}
.reader-more-menu{right:10px;top:51px;width:210px}
body.reader-open .reader-end{align-items:flex-start;flex-direction:column}.reader-nav{width:100%}.reader-prev,.reader-next{flex:1}
}
@media(prefers-reduced-motion:reduce){
body.reader-open .reader-scroll{scroll-behavior:auto!important}
.reader-ai-sidecar,.reader-scroll,.reader-cover-media .photo,.reader-toolbar-title b,.reader-path-card{transition:none!important}
}
body.reader-open .ai-nav{display:none!important}
/* ============================================================
v2.6 · 点赞 + 自动分享海报（简阅传播模板）
============================================================ */
.card-like{
border:0;background:transparent;color:var(--muted);font:inherit;font-size:11px;font-weight:650;
display:inline-flex;align-items:center;gap:4px;padding:3px 6px;border-radius:999px;transition:.2s ease;
}
.card-like:hover{background:#f5efe5;color:var(--gold-2)}
.card-like.on{color:#a77935;background:#f7efe2}
.card-like b{font-weight:700;font-variant-numeric:tabular-nums}
.card-foot{gap:7px}.card-foot .src{flex:1;min-width:0}.card-foot .go{margin-left:auto}
.hero-like{min-width:78px}.hero-like.on{border-color:#cda968;color:#8b6531;background:#faf4e9}
.reader-like{min-width:70px}.reader-like.on{color:#9c7030;background:#f7efe3}
.reader-like b{font-size:11px;font-weight:700;font-variant-numeric:tabular-nums}
body.share-studio-open{overflow:hidden}
.share-studio{
position:fixed;inset:0;z-index:5000;display:grid;place-items:center;padding:24px;
background:rgba(18,18,17,.52);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
animation:shareFade .2s ease both;
}
@keyframes shareFade{from{opacity:0}to{opacity:1}}
.share-studio-panel{
width:min(1040px,calc(100vw - 48px));max-height:min(860px,calc(100vh - 48px));overflow:auto;
background:#fbfaf7;border:1px solid rgba(172,137,78,.22);border-radius:26px;box-shadow:0 28px 90px rgba(21,17,11,.28);
}
.share-studio-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding:26px 30px 20px;border-bottom:1px solid var(--line-2)}
.share-studio-head span{font:700 10px/1 var(--mono);letter-spacing:.18em;color:var(--gold-2)}
.share-studio-head h3{margin:8px 0 4px;font:600 25px/1.25 var(--serif);color:var(--ink)}
.share-studio-head p{margin:0;color:var(--muted);font-size:13px}
.share-studio-close{width:38px;height:38px;border:1px solid var(--line);border-radius:50%;background:#fff;color:var(--ink);font-size:22px;line-height:1;cursor:pointer}
.share-studio-body{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(260px,.8fr);gap:28px;padding:28px 30px 32px}
.share-preview-wrap{min-height:520px;display:grid;place-items:center;border-radius:20px;background:#0b151b;overflow:hidden;box-shadow:inset 0 0 0 1px rgba(209,166,94,.16)}
.share-preview-wrap img{display:block;max-width:100%;max-height:650px;width:auto;height:auto;object-fit:contain}
.share-studio-tools{display:flex;flex-direction:column;justify-content:center;gap:18px}
.share-format{display:grid;grid-template-columns:1fr;gap:8px}
.share-format button,.share-studio-actions button{
border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:13px;padding:12px 14px;font-size:13px;font-weight:650;cursor:pointer;transition:.2s ease;
}
.share-format button:hover,.share-format button.on{border-color:#caa66b;background:#f7f0e5;color:#8b6531}
.share-studio-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px}.share-studio-actions .primary{grid-column:1/-1;background:#151515;color:white;border-color:#151515}
.share-studio-actions button:hover{transform:translateY(-1px);box-shadow:var(--sh-sm)}
.share-studio-note{margin:0;padding-top:10px;border-top:1px solid var(--line-2);color:var(--faint);font-size:12px;line-height:1.7}
@media(max-width:760px){
.share-studio{padding:0;place-items:end center}
.share-studio-panel{width:100%;max-height:94vh;border-radius:22px 22px 0 0}
.share-studio-head{padding:20px 18px 16px}
.share-studio-body{grid-template-columns:1fr;padding:18px;gap:18px}
.share-preview-wrap{min-height:0;max-height:55vh}
.share-preview-wrap img{max-height:55vh}
.share-format{grid-template-columns:repeat(3,1fr)}
.share-format button{padding:10px 6px;font-size:12px}
.card-foot .src{display:none}
}
.pk-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--line-2);display:flex;align-items:center;justify-content:space-between;color:var(--faint);font-size:11px}
.pk-like{border:0;background:transparent;color:var(--muted);padding:4px 7px;border-radius:999px;font:inherit;font-weight:650;cursor:pointer}.pk-like.on{color:#9a6c2c;background:#f6eee1}.pk-like b{font-weight:700;font-variant-numeric:tabular-nums}
/* v2.6 · 首页可信度核验：只显示真实状态，不伪造来源数量或进度 */
.trust-verification{margin-top:8px;margin-bottom:42px;border:1px solid rgba(177,139,77,.22);border-radius:24px;background:linear-gradient(135deg,#fcfaf6,#f8f3ea);box-shadow:0 20px 60px rgba(70,51,24,.06);display:grid;grid-template-columns:minmax(260px,.78fr) minmax(0,1.7fr);overflow:hidden}
.trust-verification-main{padding:30px 32px;border-right:1px solid rgba(177,139,77,.15)}
.trust-verification-main h2{margin:10px 0 12px;font:600 clamp(26px,2.2vw,36px)/1.25 var(--serif);letter-spacing:-.02em;color:var(--ink)}
.trust-verification-main p{margin:0;color:var(--muted);font-size:13px;line-height:1.85;max-width:34em}
.trust-publish{margin-top:24px;display:flex;align-items:baseline;gap:9px}.trust-publish b{font-family:var(--mono);font-size:13px;color:var(--ink)}.trust-publish span{font-size:12px;color:var(--faint)}
.trust-track{display:grid;grid-template-columns:repeat(3,1fr);align-items:center;margin-top:25px;position:relative}.trust-track:before{content:"";position:absolute;left:5%;right:5%;height:1px;background:#d9c8aa}.trust-track i{position:relative;z-index:1;width:10px;height:10px;border-radius:50%;background:#fbf8f1;border:1.5px solid #baa782}.trust-track i:nth-child(2){justify-self:center}.trust-track i:nth-child(3){justify-self:end}.trust-track i.on{background:#ad8544;border-color:#ad8544;box-shadow:0 0 0 4px rgba(173,133,68,.10)}
.trust-track-labels{display:grid;grid-template-columns:repeat(3,1fr);margin-top:9px;color:var(--faint);font-size:10px}.trust-track-labels span:nth-child(2){text-align:center}.trust-track-labels span:nth-child(3){text-align:right}
.trust-verification-grid{padding:26px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;align-content:center}
.trust-verification-grid article{min-height:142px;padding:20px;border:1px solid rgba(177,139,77,.14);background:rgba(255,255,255,.68);border-radius:17px;display:flex;flex-direction:column;gap:9px}
.trust-verification-grid article small{font-size:11px;color:var(--gold-2);font-weight:700;letter-spacing:.04em}.trust-verification-grid article b{font:600 18px/1.35 var(--serif);color:var(--ink)}.trust-verification-grid article span{font-size:11px;line-height:1.65;color:var(--faint)}
.trust-verification-foot{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:11px 14px 11px 18px;background:#f3ebde;border-radius:14px;color:var(--muted);font-size:11px}.trust-verification-foot button{border:0;background:#181817;color:#fff;border-radius:999px;padding:10px 16px;font-weight:650;cursor:pointer}
@media(max-width:980px){.trust-verification{grid-template-columns:1fr}.trust-verification-main{border-right:0;border-bottom:1px solid rgba(177,139,77,.15)}.trust-verification-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.trust-verification{border-radius:19px;margin-inline:16px}.trust-verification-main{padding:24px 20px}.trust-verification-grid{grid-template-columns:1fr;padding:16px}.trust-verification-grid article{min-height:0}.trust-verification-foot{align-items:flex-start;flex-direction:column}.trust-verification-foot button{width:100%}}