:root{color-scheme:light;--color-bg: #f8fafc;--color-bg-soft: #f1f5f9;--color-surface: #ffffff;--color-surface-soft: #f8fafc;--color-text: #0f172a;--color-text-soft: #334155;--color-muted: #64748b;--color-border: #e2e8f0;--color-primary: #2563eb;--color-primary-soft: #eff6ff;--color-primary-strong: #1d4ed8;--color-accent: #0f766e;--color-accent-soft: #ecfeff;--color-accent-strong: #115e59;--color-warning-soft: #fffbeb;--color-warning-text: #92400e;--shadow-card: 0 12px 30px rgba(15, 23, 42, .06);--shadow-card-hover: 0 18px 45px rgba(15, 23, 42, .1);--font-sans: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", sans-serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;--container-wide: min(1160px, calc(100% - 32px) );--container-reading: min(920px, calc(100% - 32px) );--bg: var(--color-bg);--bg-soft: var(--color-bg-soft);--paper: var(--color-surface);--paper-soft: var(--color-surface-soft);--surface: var(--color-surface);--surface-soft: var(--color-surface-soft);--ink: var(--color-text);--text: var(--color-text);--muted: var(--color-muted);--line: var(--color-border);--border: var(--color-border);--accent: var(--color-accent);--accent-2: var(--color-primary-strong);--accent-soft: var(--color-accent-soft);--brief-title: var(--color-primary-strong);--shadow: var(--shadow-card)}*{box-sizing:border-box}html{scroll-behavior:smooth;text-size-adjust:100%}body{min-width:320px;margin:0;background:linear-gradient(180deg,#eff6ffbd,#f8fafc00 320px),var(--color-bg);color:var(--color-text);font-family:var(--font-sans);font-size:16px;line-height:1.68}body[data-lang=en]{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:var(--color-primary);text-decoration-thickness:1px;text-underline-offset:3px;overflow-wrap:anywhere}a:hover{color:var(--color-primary-strong)}img,svg{max-width:100%}code,pre,.mono,.metric-value,.stat-value,.paper-meta-link,.table-line,.date-badge{font-family:var(--font-mono)}.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(226,232,240,.9);background:#ffffffd6;backdrop-filter:blur(16px)}.nav,.footer{width:var(--container-wide);margin:0 auto}.nav{min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:8px 0}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--color-text);font-size:16px;font-weight:800;text-decoration:none;white-space:nowrap}.brand-mark{display:inline-grid;place-items:center;width:28px;height:28px;border:1px solid rgba(37,99,235,.22);border-radius:8px;background:linear-gradient(135deg,var(--color-primary-soft),var(--color-accent-soft));color:var(--color-primary-strong);font-size:13px;font-weight:900;line-height:1}.nav-links{display:flex;align-items:center;justify-content:flex-end;gap:6px;flex-wrap:wrap;font-size:14px}.nav-links a,.nav-wechat-trigger{min-height:34px;display:inline-flex;align-items:center;border-radius:8px;padding:0 10px;color:var(--color-text-soft);text-decoration:none}.nav-links a:hover,.nav-wechat-trigger:hover,.nav-wechat-trigger:focus-visible{background:var(--color-bg-soft);color:var(--color-primary-strong);text-decoration:none}.nav-wechat{position:relative;display:inline-flex}.nav-wechat-trigger{border:0;background:transparent;cursor:pointer;font:inherit}.wechat-popover{position:absolute;top:calc(100% + 10px);left:50%;z-index:100;width:min(340px,calc(100vw - 32px));border:1px solid var(--color-border);border-radius:8px;background:var(--color-surface);box-shadow:0 24px 70px #0f172a2e;padding:28px 28px 30px;text-align:center;transform:translate(-50%)}.wechat-popover[hidden]{display:none}.wechat-popover:before,.wechat-popover:after{position:absolute;left:50%;width:0;height:0;content:"";border-right:10px solid transparent;border-left:10px solid transparent;transform:translate(-50%)}.wechat-popover:before{top:-11px;border-bottom:11px solid var(--color-border)}.wechat-popover:after{top:-10px;border-bottom:11px solid var(--color-surface)}.wechat-close{position:absolute;top:8px;right:10px;width:32px;height:32px;border:0;border-radius:999px;background:transparent;color:var(--color-muted);cursor:pointer;font:24px/1 var(--font-sans)}.wechat-close:hover,.wechat-close:focus-visible{background:var(--color-bg-soft);color:var(--color-text)}.wechat-eyebrow,.wechat-title{margin:0;text-align:center;letter-spacing:0}.wechat-eyebrow{color:var(--color-muted);font-size:14px}.wechat-title{margin-top:2px;color:var(--color-text);font-size:18px;font-weight:700}.wechat-popover img{display:block;width:min(260px,100%);height:auto;margin:18px auto 0;border-radius:8px}.page{width:var(--container-wide);margin:0 auto;padding:48px 0 80px}.reading-page{width:var(--container-reading)}.page-title{max-width:840px;margin:0 0 20px;color:var(--color-text);font-size:clamp(32px,6vw,52px);line-height:1.08;letter-spacing:0}.page-subtitle{max-width:740px;margin:-8px 0 28px;color:var(--color-muted);font-size:17px}.eyebrow,.section-kicker{margin:0 0 10px;color:var(--color-accent-strong);font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:40px 0 16px}.section-head h2{margin:0;color:var(--color-text);font-size:clamp(22px,3vw,28px);line-height:1.2;letter-spacing:0}.section-head p{margin:4px 0 0;color:var(--color-muted)}.muted{color:var(--color-muted)}.button,.paper-meta-link,.issue-source-link,.text-link-button{transition:background .16s ease,border-color .16s ease,color .16s ease,transform .16s ease,box-shadow .16s ease}.button{min-height:42px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--color-primary);border-radius:8px;padding:0 16px;background:var(--color-primary);color:#fff;font-size:14px;font-weight:800;text-decoration:none}.button:hover{background:var(--color-primary-strong);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px #2563eb2e}.button.secondary{border-color:var(--color-border);background:var(--color-surface);color:var(--color-text-soft)}.button.secondary:hover{border-color:#2563eb42;background:var(--color-primary-soft);color:var(--color-primary-strong);box-shadow:none}.action-row,.quick-nav,.chip-row,.topic-chips,.issue-meta-row,.archive-meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px}.quick-nav{margin:24px 0 0;padding:14px 0 0;border-top:1px solid var(--color-border)}.quick-nav a{color:var(--color-muted);text-decoration:none}.quick-nav a:hover{color:var(--color-primary-strong)}.pill,.topic-chips a,.topic-chips span,.chip-row a,.chip-row span,.article-meta span,.archive-meta-row span,.issue-meta-row span,.fallback-badge{min-height:28px;display:inline-flex;align-items:center;border:1px solid var(--color-border);border-radius:999px;padding:3px 10px;background:var(--color-surface);color:var(--color-text-soft);font-size:13px;line-height:1.35;text-decoration:none}.topic-chips a,.chip-row a{color:var(--color-primary-strong)}.topic-chips a:hover,.chip-row a:hover{border-color:#2563eb42;background:var(--color-primary-soft);color:var(--color-primary-strong)}.fallback-badge{border-color:#92400e2e;background:var(--color-warning-soft);color:var(--color-warning-text)}.home-hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(300px,.85fr);gap:24px;align-items:stretch;margin-bottom:28px}.hero-copy{min-width:0;padding:clamp(28px,5vw,56px);border:1px solid var(--color-border);border-radius:8px;background:#ffffffd1;box-shadow:var(--shadow-card)}.hero-copy h1{max-width:780px;margin:0 0 16px;color:var(--color-text);font-size:clamp(36px,6vw,56px);line-height:1.06;letter-spacing:0}.hero-subtitle{max-width:720px;margin:0 0 12px;color:var(--color-text-soft);font-size:clamp(16px,1.8vw,19px);line-height:1.65}.hero-note{margin:0 0 24px;color:var(--color-muted);font-size:14px}.hero-panel,.latest-panel,.article-card,.topic-row,.search-panel,.info-card,.brief-hero,.source-info-card,.featured-paper-card,.direction-card,.boundary-card,.featured-paper-digest{border:1px solid var(--color-border);border-radius:8px;background:var(--color-surface);box-shadow:var(--shadow-card)}.hero-panel{align-self:stretch;padding:24px;background:linear-gradient(180deg,#eff6ffbd,#ecfeff57),var(--color-surface)}.hero-panel-title{margin:0 0 18px;color:var(--color-text);font-size:18px;font-weight:800}.metrics,.meta-grid{display:grid;gap:10px}.metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.metric,.meta-item{min-width:0;border:1px solid rgba(226,232,240,.92);border-radius:8px;background:#ffffffc7;padding:14px}.metric span,.meta-item span{display:block;color:var(--color-muted);font-size:12px}.metric strong,.meta-item strong{display:block;margin-top:4px;color:var(--color-text);font-size:22px;line-height:1.12;overflow-wrap:anywhere}.latest-panel{display:grid;grid-template-columns:minmax(0,1fr) minmax(230px,.34fr);gap:22px;align-items:start;padding:24px;margin:0 0 24px}.latest-panel h2,.article-card h2{margin:0 0 10px;color:var(--color-text);font-size:clamp(20px,3vw,28px);line-height:1.25;letter-spacing:0}.latest-panel h2 a,.article-card h2 a,.topic-row{color:var(--color-text);text-decoration:none}.latest-panel h2 a:hover,.article-card h2 a:hover,.topic-row:hover{color:var(--color-primary-strong)}.latest-summary,.article-card p{margin:0 0 14px;color:var(--color-muted)}.latest-side{display:grid;gap:12px}.article-list{display:grid;gap:16px}.recent-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.article-card{min-width:0;padding:20px;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}.article-card:hover,.topic-row:hover,.featured-paper-card:hover{border-color:#2563eb3d;box-shadow:var(--shadow-card-hover);transform:translateY(-2px)}.article-card h2{font-size:20px}.article-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:var(--color-muted);font-size:13px}.article-meta a,.issue-source-link{min-height:28px;display:inline-flex;align-items:center;border-radius:999px;padding:3px 10px;background:var(--color-primary-soft);color:var(--color-primary-strong);font-size:13px;font-weight:800;text-decoration:none}.article-meta a:hover,.issue-source-link:hover{background:#dbeafe}.info-card{padding:22px}.info-card h2{margin:0 0 8px;font-size:22px}.info-card p{margin:0;color:var(--color-muted)}.featured-paper-strip,.featured-paper-digest{margin:14px 0 16px;padding:14px;background:var(--color-surface-soft);box-shadow:none}.featured-paper-kicker,.featured-paper-digest-kicker{margin:0 0 10px;color:var(--color-muted);font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase}.featured-paper-title-list,.featured-paper-digest-list{display:grid;gap:8px;margin:0;padding:0;list-style:none}.featured-paper-title-list li,.featured-paper-digest-list li{display:grid;grid-template-columns:26px minmax(0,1fr);gap:10px;align-items:start;color:var(--color-text-soft);font-size:14px;line-height:1.5}.featured-paper-number,.featured-paper-index{display:inline-grid;place-items:center;width:22px;height:22px;border-radius:999px;background:var(--color-surface);color:var(--color-primary-strong);font-size:12px;font-weight:900}.featured-paper-title-text{min-width:0}.featured-paper-link{margin-left:4px;color:var(--color-primary);text-decoration:none}.featured-paper-link:hover{text-decoration:underline}.archive-hero,.topic-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(220px,.32fr);gap:20px;align-items:stretch;margin-bottom:24px}.archive-highlight{border:1px solid var(--color-border);border-radius:8px;background:var(--color-surface);padding:20px;box-shadow:var(--shadow-card)}.month-group{margin-top:32px}.month-title{margin:0 0 12px;color:var(--color-text-soft);font-size:18px}.archive-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.topic-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}.topic-row{display:block;min-width:0;padding:18px;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease,color .16s ease}.topic-row strong{display:block;color:var(--color-text);font-size:17px}.topic-row p{margin:8px 0 0;color:var(--color-muted);font-size:14px}.search-panel{max-width:820px;padding:18px}.search-panel input{width:100%;min-height:46px;border:1px solid var(--color-border);border-radius:8px;padding:0 14px;background:var(--color-surface);color:var(--color-text);font:inherit}.search-panel input:focus{outline:2px solid rgba(37,99,235,.22);outline-offset:2px}.footer-shell{border-top:1px solid var(--color-border);background:var(--color-surface)}.footer{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px;padding:26px 0;color:var(--color-muted);font-size:14px}.footer strong{display:block;margin-bottom:4px;color:var(--color-text)}.footer p{margin:0}.footer-links{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:flex-end}.footer-links a{color:var(--color-muted);text-decoration:none}.footer-links a:hover{color:var(--color-primary-strong)}.prose{max-width:820px;color:var(--color-text-soft);font-size:16.5px}.prose>*:first-child{margin-top:0}.prose h1,.prose h2,.prose h3{color:var(--color-text);line-height:1.24;letter-spacing:0}.prose h1{margin:0 0 18px;font-size:clamp(30px,5vw,42px)}.prose h2{margin:36px 0 14px;padding-top:0;border-top:0;font-size:clamp(22px,3vw,27px)}.prose h3{margin:0 0 12px;font-size:20px}.prose p{margin:10px 0 16px}.prose li{margin:8px 0;overflow-wrap:anywhere}.brief-article{max-width:920px;margin:0 auto}.brief-hero{padding:clamp(24px,4vw,36px);margin-bottom:18px;background:linear-gradient(180deg,#eff6ffb8,#ffffffdb),var(--color-surface)}.brief-hero h1{margin:10px 0 14px;color:var(--color-text);font-size:clamp(28px,5vw,42px);line-height:1.14;letter-spacing:0;overflow-wrap:anywhere}.brief-summary{max-width:760px;margin:0;color:var(--color-text-soft);font-size:17px}.brief-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}.brief-meta-bar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:0 0 22px;padding:12px;border:1px solid var(--color-border);border-radius:8px;background:#ffffffc2}.brief-meta-bar span{min-height:30px;display:inline-flex;align-items:center;border:1px solid var(--color-border);border-radius:999px;padding:4px 10px;background:var(--color-surface);color:var(--color-text-soft);font-size:13px}.brief-meta-bar strong{margin-left:4px;color:var(--color-text);font-family:var(--font-mono)}.direction-card,.boundary-card,.source-info-card{margin:24px 0;padding:20px;box-shadow:none}.direction-card{border-color:#0f766e2e;background:linear-gradient(90deg,#ecfeffeb,#f8fafcb8);border-left:4px solid var(--color-accent)}.direction-card h2,.boundary-card h2,.source-info-card h2{margin-top:0}.direction-card p:last-child,.boundary-card p:last-child,.source-info-card p:last-child{margin-bottom:0}.featured-section-heading{margin-top:36px}.featured-paper-card{position:relative;margin:18px 0;padding:22px 22px 20px 62px;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}.featured-paper-card h3{margin:0 0 12px;color:var(--color-text)}.featured-paper-card h3:before{position:absolute;top:22px;left:20px;display:inline-grid;place-items:center;width:28px;height:28px;border-radius:999px;background:var(--color-primary);color:#fff;content:attr(data-index);font-family:var(--font-mono);font-size:13px;font-weight:900}.paper-meta-line{display:flex;flex-wrap:wrap;gap:7px;align-items:center;margin:0 0 14px;color:var(--color-muted);font-size:14px;line-height:1.45}.paper-meta-line span{flex-basis:100%;color:var(--color-text-soft);font-weight:700;overflow-wrap:anywhere}.paper-meta-link{display:inline-flex;align-items:center;min-height:28px;border:1px solid rgba(37,99,235,.18);border-radius:999px;padding:3px 9px;background:var(--color-primary-soft);color:var(--color-primary-strong);font-size:12px;font-weight:800;text-decoration:none;white-space:nowrap}.paper-meta-link:hover{border-color:#2563eb57;background:#dbeafe;color:var(--color-primary-strong)}.paper-title-zh,.paper-title-en,.paper-signal,.paper-keywords,.paper-availability{margin:12px 0}.field-label{display:block;margin-bottom:5px;color:var(--color-muted);font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase}.paper-title-zh strong,.paper-title-en strong{color:var(--color-text);font-weight:800}.paper-signal{border-radius:8px;background:var(--color-surface-soft);padding:12px 14px}.keyword-chip{display:inline-flex;align-items:center;min-height:26px;margin:3px 5px 3px 0;border:1px solid rgba(15,118,110,.18);border-radius:999px;padding:3px 9px;background:var(--color-accent-soft);color:var(--color-accent-strong);font-size:13px;font-weight:700}.paper-availability{color:var(--color-muted);font-size:14px}.mentions-section{margin-top:36px}.mentions-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}.mention-card,.mentions-list li{margin:0;border:1px solid var(--color-border);border-radius:8px;background:var(--color-surface);padding:14px 16px}.mention-title{margin:0 0 8px;color:var(--color-text);font-weight:800}.mention-card p:last-child{margin-bottom:0}.mentions-list a{font-weight:800;text-decoration:none}.mentions-list a:hover{text-decoration:underline}.mentions-list br{display:block;content:"";margin-top:6px}.boundary-card{background:var(--color-surface-soft)}.source-info-card{background:linear-gradient(180deg,var(--color-surface),var(--color-surface-soft))}.source-table-wrap{width:100%;margin:16px 0 24px;overflow-x:auto;border:1px solid var(--color-border);border-radius:8px;background:var(--color-surface);box-shadow:var(--shadow-card)}.source-table{width:100%;min-width:700px;border-collapse:collapse;font-size:14px}.source-table th,.source-table td{border-bottom:1px solid var(--color-border);padding:11px 12px;text-align:left;vertical-align:top}.source-table th{background:var(--color-bg-soft);color:var(--color-text-soft);font-size:12px;font-weight:900;letter-spacing:.05em;text-transform:uppercase}.source-table tr:nth-child(2n) td{background:#f8fafc9e}.source-table tr:last-child td{border-bottom:0}.source-table td:first-child,.source-table a[href*="arxiv.org"]{font-family:var(--font-mono)}.table-line{margin:0;padding:2px 0;overflow-x:auto;background:transparent;color:var(--color-muted);font:13px/1.5 var(--font-mono)}.date-badge{display:inline-flex;align-items:center;min-height:30px;border:1px solid rgba(37,99,235,.18);border-radius:999px;padding:4px 10px;background:var(--color-primary-soft);color:var(--color-primary-strong);font-size:13px;font-weight:900}@media(max-width:1024px){.recent-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:820px){.nav{min-height:0;align-items:flex-start;flex-direction:column;gap:10px;padding:12px 0}.nav-links{justify-content:flex-start}.page{width:min(100% - 28px,1160px);padding:30px 0 58px}.home-hero,.latest-panel,.archive-hero,.topic-hero{grid-template-columns:1fr}.hero-copy,.hero-panel,.latest-panel,.brief-hero{padding:22px}.hero-copy h1{font-size:clamp(32px,10vw,38px)}.metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.recent-grid,.archive-grid{grid-template-columns:1fr}.section-head{align-items:flex-start;flex-direction:column;gap:8px}.featured-paper-card{padding:58px 16px 18px}.featured-paper-card h3:before{top:18px;left:16px}.footer{grid-template-columns:1fr}.footer-links{justify-content:flex-start}}@media(max-width:640px){body{font-size:16px}.brand{white-space:normal}.nav-links a,.nav-wechat-trigger{padding:0 8px}.page{width:min(100% - 24px,1160px)}.hero-copy,.hero-panel,.latest-panel,.article-card,.topic-row,.brief-hero,.info-card{padding:18px}.metrics{grid-template-columns:1fr}.button{width:100%}.action-row{align-items:stretch}.prose{font-size:16px}.brief-meta-bar span,.pill,.topic-chips a,.topic-chips span,.chip-row a,.chip-row span,.article-meta span,.archive-meta-row span,.issue-meta-row span{max-width:100%}}.prose{max-width:min(820px,100%);overflow-wrap:break-word;word-break:normal}.prose ul,.prose ol{max-width:100%;padding-left:1.25rem}.prose li,.prose li a,.prose p a,.prose .paper-meta-line,.prose .paper-meta-line span,.prose .paper-meta-link{max-width:100%;overflow-wrap:anywhere;word-break:break-word}.prose .paper-meta-link{white-space:normal}.prose table,.prose pre,.prose code{max-width:100%;overflow-x:auto}:root{--color-bg: #f7f8fb;--color-bg-soft: #eef3f7;--color-surface: #ffffff;--color-surface-soft: #f7fafb;--color-text: #172033;--color-text-soft: #3a485c;--color-muted: #687386;--color-border: #dde6ee;--color-primary: #3a6386;--color-primary-soft: #edf4f8;--color-primary-strong: #244760;--color-accent: #2e857b;--color-accent-soft: #edf7f5;--color-accent-strong: #1f625c;--color-warning-soft: #fff7df;--color-warning-text: #8a5a16;--shadow-card: 0 18px 44px rgba(23, 32, 51, .055);--shadow-card-hover: 0 24px 58px rgba(23, 32, 51, .095);--radius-sm: 12px;--radius-md: 18px;--radius-lg: 24px}body{background:radial-gradient(circle at 14% 0%,rgba(46,133,123,.1),transparent 34vw),linear-gradient(180deg,#edf4f8eb,#f7f8fb00 360px),var(--color-bg);color:var(--color-text);font-size:16.5px;line-height:1.72;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}body[data-lang=zh]{letter-spacing:.005em}a{color:var(--color-primary)}a:hover{color:var(--color-accent-strong)}.site-header{border-bottom-color:#b5cdd894;background:linear-gradient(135deg,#f8fbfcf5,#edf7f5f0 44%,#eef4f8f5);box-shadow:0 12px 34px #1720330e;isolation:isolate}.site-header:before{position:absolute;top:0;right:0;left:0;z-index:-1;height:3px;content:"";background:linear-gradient(90deg,#3a6386c7,#2e857bb8,#af8d4a7a)}.site-header:after{position:absolute;right:0;bottom:-1px;left:0;z-index:-1;height:1px;content:"";background:linear-gradient(90deg,transparent,rgba(46,133,123,.22),transparent)}.nav{position:relative;z-index:1}.brand{font-size:15.5px;font-weight:720;letter-spacing:.01em}.brand-mark{border-color:#3a63862e;border-radius:10px;background:linear-gradient(135deg,#f4f8fb,#edf7f5);color:var(--color-primary-strong);font-weight:760}.nav-links{font-size:14px}.nav-links a,.nav-wechat-trigger{border-radius:999px;color:var(--color-text-soft);font-weight:540}.nav-links a:hover,.nav-wechat-trigger:hover,.nav-wechat-trigger:focus-visible{background:#ffffffad;color:var(--color-primary-strong);box-shadow:inset 0 0 0 1px #3a638614}.wechat-popover{border-color:#dde6eefa;border-radius:var(--radius-lg);box-shadow:0 28px 72px #17203329}.wechat-title{font-weight:680}.wechat-popover img{border-radius:16px}.page-title,.hero-copy h1,.brief-hero h1,.prose h1{color:#152034;font-weight:700;letter-spacing:-.025em}.hero-copy h1{font-size:clamp(34px,5.3vw,50px);line-height:1.09}.page-title{font-size:clamp(31px,5.2vw,48px);line-height:1.12}.brief-hero h1,.prose h1{font-size:clamp(28px,4.7vw,39px);line-height:1.18}.section-head h2,.prose h2,.info-card h2{font-weight:680;letter-spacing:-.014em}.prose h2{font-size:clamp(21px,2.6vw,25px)}.prose h3,.featured-paper-card h3,.latest-panel h2,.article-card h2{font-weight:660;letter-spacing:-.01em}.hero-subtitle,.brief-summary,.page-subtitle,.article-card p,.latest-summary,.prose{color:var(--color-text-soft)}.eyebrow,.section-kicker,.field-label,.featured-paper-kicker,.featured-paper-digest-kicker{color:var(--color-accent-strong);font-weight:680;letter-spacing:.055em}.button,.article-meta a,.issue-source-link,.paper-meta-link{font-weight:660}.button{border-color:var(--color-primary);border-radius:999px;background:var(--color-primary);box-shadow:0 10px 22px #3a638621}.button:hover{background:var(--color-primary-strong);box-shadow:0 14px 28px #3a63862e}.button.secondary{border-color:#dde6eefa;background:#ffffffdb}.hero-copy,.hero-panel,.latest-panel,.article-card,.topic-row,.search-panel,.info-card,.brief-hero,.source-info-card,.featured-paper-card,.direction-card,.boundary-card,.featured-paper-digest,.archive-highlight,.source-table-wrap,.mention-card,.mentions-list li{border-radius:var(--radius-lg)}.hero-copy,.hero-panel,.latest-panel,.article-card,.topic-row,.search-panel,.info-card,.brief-hero,.source-info-card,.featured-paper-card,.direction-card,.boundary-card,.featured-paper-digest{border-color:#dde6eeeb}.hero-copy{background:#ffffffdb}.hero-panel,.brief-hero{background:linear-gradient(180deg,#edf4f8e0,#ffffffeb),var(--color-surface)}.direction-card{border-color:#2e857b2e;background:linear-gradient(90deg,#edf7f5eb,#ffffffb8);border-left-color:var(--color-accent)}.metric,.meta-item,.brief-meta-bar,.brief-meta-bar span,.pill,.topic-chips a,.topic-chips span,.chip-row a,.chip-row span,.article-meta span,.archive-meta-row span,.issue-meta-row span,.fallback-badge{border-color:#dde6eeeb}.metric strong,.meta-item strong{color:var(--color-primary-strong);font-size:21px;font-weight:680}.metric span,.meta-item span,.paper-availability,.footer,.hero-note{color:var(--color-muted)}.article-meta a,.issue-source-link,.paper-meta-link,.date-badge{border-color:#3a638629;background:var(--color-primary-soft);color:var(--color-primary-strong)}.article-meta a:hover,.issue-source-link:hover,.paper-meta-link:hover{border-color:#2e857b38;background:var(--color-accent-soft);color:var(--color-accent-strong)}.featured-paper-card h3:before{background:linear-gradient(135deg,var(--color-primary),var(--color-accent));font-weight:760}.paper-meta-line span,.mention-title,.topic-row strong,.paper-title-zh strong,.paper-title-en strong{font-weight:660}.paper-signal{border:1px solid rgba(221,230,238,.84);background:#f8fbfb}.keyword-chip{border-color:#2e857b2b;background:var(--color-accent-soft);color:var(--color-accent-strong);font-weight:600}.source-table th{background:#f0f5f7;color:var(--color-text-soft);font-weight:720}.footer-shell{background:#ffffffd1}@media(max-width:820px){.site-header{background:linear-gradient(135deg,#f8fbfcfa,#edf7f5f5,#eef4f8fa)}.nav-wechat{position:static}.wechat-popover{position:fixed;top:calc(env(safe-area-inset-top,0px) + 78px);left:50%;right:auto;width:min(320px,calc(100vw - 32px));max-height:calc(100vh - 104px);overflow:auto;padding:24px 22px 26px;transform:translate(-50%)}.wechat-popover:before,.wechat-popover:after{display:none}.wechat-popover img{width:min(238px,calc(100vw - 86px))}}@media(max-width:640px){body{font-size:16px;line-height:1.7}.site-header{background:linear-gradient(145deg,#fafcfcfa,#eef8f6fa 58%,#eff5f8fa)}.nav-links{gap:4px}.nav-links a,.nav-wechat-trigger{min-height:32px;padding:0 9px;font-size:13.5px}.page-title,.hero-copy h1,.brief-hero h1,.prose h1{letter-spacing:-.018em}.hero-copy h1{font-size:clamp(31px,9vw,36px)}.brief-hero h1,.prose h1{font-size:clamp(26px,7.5vw,32px)}.prose h2{font-size:clamp(20px,6vw,23px)}.hero-copy,.hero-panel,.latest-panel,.article-card,.topic-row,.brief-hero,.info-card,.featured-paper-card,.direction-card,.boundary-card,.source-info-card{border-radius:var(--radius-md)}.wechat-popover{top:calc(env(safe-area-inset-top,0px) + 72px);width:min(312px,calc(100vw - 28px));padding:22px 20px 24px}}
