/* ═══════════════════════════════════════════════════════════════
   AI4S 生命前沿 — 样式 v4（编辑型新闻门户）
   设计原则：单一强调色 · 领域色只做点缀 · 拉丁优先衬线标题 · 暗/亮双主题
   ═══════════════════════════════════════════════════════════════ */

:root{
  --bg:#0b1020;--bg-2:#0f1629;--surface:#121a2e;--surface-2:#172139;--surface-hover:#1a2540;
  --line:rgba(148,163,184,.13);--line-strong:rgba(148,163,184,.24);
  --text:#e7ecf3;--text-2:#a6b2c4;--text-3:#6f7d93;
  --accent:#2dd4bf;--accent-strong:#5eead4;--accent-ink:#04211d;--accent-soft:rgba(45,212,191,.12);
  --c-drug:#2dd4bf;--c-protein:#a78bfa;--c-genomics:#fbbf24;--c-clinical:#fb7185;--c-cell:#4ade80;--c-imaging:#60a5fa;--c-synbio:#34d399;--c-neuro:#f472b6;
  --shadow-sm:0 1px 2px rgba(0,0,0,.25);--shadow-md:0 10px 30px -12px rgba(0,0,0,.55);
  --header-bg:rgba(11,16,32,.82);
  --font-body:"Inter","SF Pro Text",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Noto Sans CJK SC","WenQuanYi Zen Hei",system-ui,sans-serif;
  --font-display:"Source Serif 4","Source Serif Pro","Charter","Bitstream Charter","Iowan Old Style","Georgia","Songti SC","Noto Serif SC","PingFang SC","Microsoft YaHei",serif;
  --font-mono:"JetBrains Mono","SF Mono","Fira Code",ui-monospace,Menlo,Consolas,monospace;
  --radius-sm:8px;--radius-md:12px;--radius-lg:16px;
  --ease:cubic-bezier(.22,1,.36,1);--t-fast:.18s cubic-bezier(.4,0,.2,1);
  /* 兼容旧变量名（内联样式 / JS 仍在引用） */
  --bg-primary:var(--bg);--bg-secondary:var(--bg-2);--bg-card:var(--surface);
  --text-primary:var(--text);--text-secondary:var(--text-2);--text-muted:var(--text-3);
  --accent-cyan:var(--accent);--accent-cyan-dim:var(--accent-soft);--accent-violet:#8b5cf6;--accent-amber:#f59e0b;--accent-rose:#f43f5e;--accent-emerald:#10b981;--accent-fuchsia:#ec4899;
  --border-subtle:var(--line);
  color-scheme:dark;
}
[data-theme="light"]{
  --bg:#f6f7f9;--bg-2:#eef1f5;--surface:#ffffff;--surface-2:#f7f9fb;--surface-hover:#fbfcfd;
  --line:#e3e7ee;--line-strong:#cfd6e0;
  --text:#0f172a;--text-2:#475569;--text-3:#8391a5;
  --accent:#0d9488;--accent-strong:#0f766e;--accent-ink:#ffffff;--accent-soft:rgba(13,148,136,.09);
  --c-drug:#0d9488;--c-protein:#7c3aed;--c-genomics:#b45309;--c-clinical:#e11d48;--c-cell:#16a34a;--c-imaging:#2563eb;--c-synbio:#059669;--c-neuro:#db2777;
  --shadow-sm:0 1px 2px rgba(15,23,42,.05);--shadow-md:0 12px 32px -14px rgba(15,23,42,.18);
  --header-bg:rgba(246,247,249,.85);
  color-scheme:light;
}

/* 领域色：组件统一用 var(--c) */
.c-all{--c:var(--accent)}.c-drug{--c:var(--c-drug)}.c-protein{--c:var(--c-protein)}.c-genomics{--c:var(--c-genomics)}.c-clinical{--c:var(--c-clinical)}.c-cell{--c:var(--c-cell)}.c-imaging{--c:var(--c-imaging)}.c-synbio{--c:var(--c-synbio)}.c-neuro{--c:var(--c-neuro)}

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-tap-highlight-color:transparent;text-size-adjust:100%}
body{font-family:var(--font-body);font-size:15px;line-height:1.65;background:var(--bg);color:var(--text);overflow-x:hidden;transition:background-color .3s,color .3s}
body::before{content:'';position:fixed;inset:0 0 auto 0;height:520px;background:radial-gradient(60% 100% at 15% 0%,var(--accent-soft),transparent 70%);pointer-events:none;z-index:0;opacity:.7}
body.no-scroll{overflow:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a,button{touch-action:manipulation}
svg{display:block}
main{position:relative;z-index:1}
.container{max-width:1280px;margin:0 auto;padding:0 28px;position:relative;z-index:1}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:var(--accent-soft);color:var(--text)}

/* 通用：领域标签 */
.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--c,var(--accent));flex-shrink:0}
.cat-label{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:600;color:var(--c,var(--accent));letter-spacing:.02em;white-space:nowrap}

/* 通用：区块标题 */
.block-head{display:flex;align-items:baseline;justify-content:space-between;gap:8px;padding:16px 20px 12px;border-bottom:1px solid var(--line)}
.block-head span{font-size:14px;font-weight:700;color:var(--text)}
.block-head small{font-size:10.5px;font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--text-3)}
.block-empty{padding:20px;color:var(--text-3);font-size:13px}

/* ── 阅读进度 ── */
.reading-progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--accent);z-index:10000;transition:width .1s linear;pointer-events:none}

/* ── Top bar ── */
.top-bar{position:relative;z-index:100;border-bottom:1px solid var(--line);font-size:12px;color:var(--text-3)}
.top-bar .container{display:flex;align-items:center;justify-content:space-between;gap:12px;height:34px}
.top-bar-left{display:flex;align-items:center;gap:18px;min-width:0;white-space:nowrap;overflow:hidden}
.top-bar-left .date{font-variant-numeric:tabular-nums}
.top-bar .live{display:inline-flex;align-items:center;gap:7px}
.top-bar .updated{font-family:var(--font-mono);font-size:11px;overflow:hidden;text-overflow:ellipsis}
.top-bar .updated:empty{display:none}
.top-bar-right a{color:var(--text-3);transition:color var(--t-fast)}
.top-bar-right a:hover{color:var(--accent)}
.live-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;animation:pulse-dot 2.4s ease-in-out infinite}
@keyframes pulse-dot{0%,100%{box-shadow:0 0 0 0 color-mix(in srgb,var(--accent) 60%,transparent)}50%{box-shadow:0 0 0 4px transparent}}

/* ── Header ── */
.header{position:sticky;top:0;z-index:999;background:var(--header-bg);backdrop-filter:saturate(180%) blur(18px);-webkit-backdrop-filter:saturate(180%) blur(18px);border-bottom:1px solid var(--line);transition:box-shadow .3s}
.header.scrolled{box-shadow:0 6px 24px -12px rgba(0,0,0,.35)}
.header .container{display:flex;align-items:center;gap:24px;height:64px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
/* 标志：Blender 渲染的 3D 双螺旋（透明 WebP），放在深蓝圆角底上；两套主题共用 */
.logo-icon{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:radial-gradient(120% 120% at 25% 0%,#1d3350,#0b1426 60%);box-shadow:inset 0 0 0 1px rgba(255,255,255,.1),0 4px 14px -6px rgba(34,211,238,.45);transition:transform var(--t-fast)}
.logo:hover .logo-icon{transform:rotate(-6deg) scale(1.04)}
.logo-icon img{width:31px;height:31px;display:block}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:17px;font-weight:750;letter-spacing:.01em;color:var(--text)}
.logo-text span{font-size:10.5px;color:var(--text-3);letter-spacing:.14em;text-transform:uppercase;margin-top:3px;font-weight:500}
.main-nav{display:flex;align-items:center;gap:2px;margin:0 auto;min-width:0}
.main-nav a{position:relative;padding:8px 11px;font-size:14px;font-weight:500;color:var(--text-2);border-radius:8px;white-space:nowrap;transition:color var(--t-fast),background-color var(--t-fast)}
.main-nav a:hover{color:var(--text);background:var(--surface-2)}
.main-nav a.nav-active{color:var(--text);font-weight:650}
.main-nav a.nav-active::after{content:'';position:absolute;left:11px;right:11px;bottom:-13px;height:2px;border-radius:2px;background:var(--accent)}
.header-actions{display:flex;align-items:center;gap:4px;flex-shrink:0}
.icon-btn{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;color:var(--text-2);transition:color var(--t-fast),background-color var(--t-fast)}
.icon-btn:hover{color:var(--text);background:var(--surface-2)}
.icon-btn svg{width:18px;height:18px}
.icon-btn.menu{display:none}
.theme-icons{display:grid;place-items:center}
.theme-icons svg{grid-area:1/1}
.theme-icons .i-moon{display:none}
[data-theme="light"] .theme-icons .i-sun{display:none}
[data-theme="light"] .theme-icons .i-moon{display:block}
.refresh-btn{margin-left:6px;height:36px;padding:0 14px;font-size:13px;font-weight:600;border-radius:10px;color:var(--text-2);border:1px solid var(--line-strong);transition:color var(--t-fast),border-color var(--t-fast),transform var(--t-fast),opacity var(--t-fast);white-space:nowrap}
.refresh-btn:hover{color:var(--text);border-color:var(--text-3)}
.sub-cta{display:inline-flex;align-items:center;gap:7px;margin-left:6px;height:36px;padding:0 15px;font-size:13px;font-weight:650;border-radius:10px;color:var(--accent-ink);background:var(--accent);white-space:nowrap;transition:background-color var(--t-fast),transform var(--t-fast)}
.sub-cta svg{width:16px;height:16px}
.sub-cta:hover{background:var(--accent-strong)}
.sub-cta:active{transform:translateY(1px)}
.refresh-btn:active{transform:translateY(1px)}
.refresh-btn:disabled{opacity:.6;cursor:progress}

/* ── Mobile nav ── */
.mobile-nav{position:fixed;inset:0;z-index:9997;pointer-events:none}
.mobile-nav.open{pointer-events:auto}
.mobile-nav-backdrop{position:absolute;inset:0;background:rgba(2,6,16,.55);opacity:0;transition:opacity .3s}
.mobile-nav.open .mobile-nav-backdrop{opacity:1}
.mobile-nav-panel{position:absolute;top:0;right:0;width:min(300px,84vw);height:100%;background:var(--surface);border-left:1px solid var(--line);padding:16px;transform:translateX(100%);transition:transform .35s var(--ease);display:flex;flex-direction:column;gap:2px;overflow-y:auto}
.mobile-nav.open .mobile-nav-panel{transform:none}
.mobile-nav-head{display:flex;align-items:center;justify-content:space-between;padding:0 4px 10px}
.mobile-nav-title{font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--text-3)}
.mobile-nav-close{width:36px;height:36px;display:grid;place-items:center;border-radius:10px;color:var(--text-2)}
.mobile-nav-close svg{width:18px;height:18px}
.mobile-nav-close:hover{background:var(--surface-2)}
.mobile-nav-panel a{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:10px;color:var(--text-2);font-size:15px;font-weight:500;transition:background-color var(--t-fast),color var(--t-fast)}
.mobile-nav-panel a:hover{background:var(--surface-2);color:var(--text)}
.mobile-nav-panel a.mob-active{background:var(--accent-soft);color:var(--text);font-weight:650}
.mobile-nav-panel a.mob-sub{color:var(--accent);font-weight:650}
.mobile-nav-divider{height:1px;background:var(--line);margin:8px 4px;flex-shrink:0}

/* ── Search ── */
.search-overlay{position:fixed;inset:0;z-index:9999;background:rgba(2,6,16,.6);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:flex-start;justify-content:center;padding:14vh 16px 0;opacity:0;pointer-events:none;transition:opacity .25s}
.search-overlay.active{opacity:1;pointer-events:auto}
.search-box{width:640px;max-width:100%;background:var(--surface);border:1px solid var(--line-strong);border-radius:var(--radius-lg);box-shadow:0 30px 80px -20px rgba(0,0,0,.6);overflow:hidden;transform:translateY(12px) scale(.98);transition:transform .3s var(--ease)}
.search-overlay.active .search-box{transform:none}
.search-field{display:flex;align-items:center;gap:12px;padding:0 14px 0 18px;border-bottom:1px solid var(--line)}
.search-field>svg{width:20px;height:20px;color:var(--text-3);flex-shrink:0}
.search-box input{flex:1;min-width:0;height:60px;font:inherit;font-size:17px;background:none;border:0;outline:none;color:var(--text)}
.search-box input::placeholder{color:var(--text-3)}
.search-close{flex-shrink:0;padding:4px 8px;border-radius:6px;border:1px solid var(--line-strong);font-family:var(--font-mono);font-size:11px;color:var(--text-3)}
.search-results{max-height:min(420px,56vh);overflow-y:auto;padding:6px}
.search-results:empty{display:none}
.search-result-item{display:block;padding:11px 14px;border-radius:10px;transition:background-color var(--t-fast)}
.search-result-item:hover{background:var(--surface-2)}
.search-result-item h4{font-family:var(--font-display);font-size:15px;font-weight:600;line-height:1.45;color:var(--text);margin-bottom:3px}
.search-result-item p{font-size:12px;color:var(--text-3)}
.search-result-item .sr-zh{font-size:13px;color:var(--text-2);margin-bottom:3px}
.search-result-item h4 mark{background:var(--accent-soft);color:var(--accent);padding:0 2px;border-radius:3px}

/* ── Ticker ── */
.ticker-bar{position:relative;z-index:10;display:flex;align-items:stretch;height:42px;background:var(--bg-2);border-bottom:1px solid var(--line);overflow:hidden}
.ticker-label{position:relative;z-index:2;flex-shrink:0;display:flex;align-items:center;gap:8px;padding:0 18px 0 max(20px,calc((100vw - 1280px)/2 + 28px));font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--accent);background:var(--bg-2);box-shadow:12px 0 16px -4px var(--bg-2)}
.ticker-label::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--accent);animation:pulse-dot 2.4s ease-in-out infinite}
.ticker-viewport{flex:1;min-width:0;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 40px,#000 calc(100% - 60px),transparent);mask-image:linear-gradient(90deg,transparent,#000 40px,#000 calc(100% - 60px),transparent)}
.ticker-track{display:flex;align-items:center;height:100%;width:max-content;white-space:nowrap;animation:ticker-scroll 140s linear infinite}
.ticker-bar:hover .ticker-track{animation-play-state:paused}
@keyframes ticker-scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.ticker-item{display:inline-flex;align-items:center;gap:10px;padding:0 4px;font-size:13px;color:var(--text-2);transition:color var(--t-fast)}
.ticker-item:hover{color:var(--text)}
.ticker-tag{font-size:11px;font-weight:600;color:var(--c,var(--accent))}
.ticker-title{max-width:420px;overflow:hidden;text-overflow:ellipsis}
.ticker-src{font-size:11px;color:var(--text-3)}
.ticker-sep{display:inline-block;width:4px;height:4px;border-radius:50%;background:var(--line-strong);margin:0 22px;flex-shrink:0}

/* ── Hero ── */
.hero-section{padding:28px 0 8px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:20px;align-items:stretch}
.hero-main{position:relative;height:clamp(330px,calc(100vh - 300px),420px);border-radius:var(--radius-lg);overflow:hidden;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.hero-loading{display:grid;place-items:center;height:100%;color:var(--text-3);font-size:14px}
.hero-track{position:absolute;inset:0;touch-action:pan-y}   /* 横向手势交给轮播，避免触发浏览器"滑动返回" */
.hero-slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .7s ease,visibility 0s .7s}
.hero-slide.active{opacity:1;visibility:visible;z-index:2;transition:opacity .7s ease}
.hero-lead{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);height:100%}
.hero-copy{position:relative;z-index:2;display:flex;flex-direction:column;padding:34px 8px 30px 36px;min-width:0}
.hero-kicker{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.hero-badge{font-family:var(--font-mono);font-size:11px;color:var(--text-3);letter-spacing:.06em}
.hero-copy h2{font-family:var(--font-display);font-size:30px;font-weight:650;line-height:1.28;letter-spacing:-.012em;color:var(--text);display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--t-fast);text-wrap:balance}
.hero-lead:hover .hero-copy h2{color:var(--accent)}
.hero-copy .zh-sum{color:var(--text);font-size:15.5px;line-height:1.8}
.hero-copy p{margin-top:14px;font-size:14.5px;line-height:1.75;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.hero-meta{display:flex;align-items:center;gap:14px;margin-top:auto;padding-top:20px;font-size:12.5px;color:var(--text-3)}
.hero-meta .source{color:var(--text);font-weight:600}
.read{display:inline-flex;align-items:center;gap:4px;font-weight:600;color:var(--accent)}
.read svg{width:14px;height:14px;transition:transform var(--t-fast)}
.hero-meta .read{margin-left:auto;padding-right:28px}
.hero-lead:hover .read svg,.news-card:hover .read svg{transform:translate(2px,-2px)}
canvas.art{display:block;width:100%;height:100%}
[data-theme="light"] canvas.art{filter:invert(1) hue-rotate(180deg) saturate(1.4) brightness(1.02)}
.hero-art{position:relative;overflow:hidden;background-color:var(--surface-2);-webkit-mask-image:linear-gradient(90deg,transparent 0,#000 38%);mask-image:linear-gradient(90deg,transparent 0,#000 38%);transition:transform 8s ease-out}
.hero-slide.active .hero-art{transform:scale(1.04)}
.hero-art .hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.hero-dots{position:absolute;left:36px;bottom:0;z-index:5;display:flex;gap:6px}
.hero-dot{width:28px;height:18px;position:relative;cursor:pointer}
.hero-dot::before{content:'';position:absolute;left:0;right:0;top:8px;height:3px;border-radius:2px;background:var(--line-strong);transition:background-color .3s}
.hero-dot.active::before{background:var(--accent)}
.hero-dot:hover::before{background:var(--text-3)}
@media (min-width:761px){
  /* 叠放淡入淡出时，旧头条文字先快速淡出，避免两条标题重叠 0.7 秒 */
  .hero-slide .hero-copy{opacity:0;transition:opacity .2s ease}
  .hero-slide.active .hero-copy{opacity:1;transition:opacity .3s ease .15s}
}
.hero-slide.active .hero-kicker,.hero-slide.active h2,.hero-slide.active p{animation:rise .6s var(--ease) both}
.hero-slide.active h2{animation-delay:.06s}.hero-slide.active p{animation-delay:.12s}

.hero-side{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm)}
.hero-side-list{flex:1;display:flex;flex-direction:column;padding:4px 0}
.hero-side-list .skel-line{margin:14px 20px 0}
.side-item{flex:1;display:flex;gap:14px;padding:13px 20px;border-bottom:1px solid var(--line);transition:background-color var(--t-fast)}
.side-item:last-child{border-bottom:0}
.side-item:hover{background:var(--surface-2)}
.side-num{font-family:var(--font-mono);font-size:12px;font-weight:600;color:var(--text-3);padding-top:2px;flex-shrink:0}
.side-body{flex:1;min-width:0;display:flex;flex-direction:column}
.side-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:11.5px;color:var(--text-3);margin-bottom:4px}
.cat-label em{font-style:normal;font-size:10px;font-weight:700;line-height:1;padding:2px 5px 2px;border-radius:4px;letter-spacing:.04em}
.cat-label .tag-ai{color:var(--c,var(--accent));background:color-mix(in srgb,var(--c,var(--accent)) 14%,transparent);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--c,var(--accent)) 30%,transparent)}
.cat-label .tag-new{color:#fff;background:#ef4444}
.acc{display:inline-block;margin-left:6px;font-size:10.5px;font-weight:600;line-height:1;padding:2px 5px;border-radius:4px;vertical-align:1px;white-space:nowrap}
.acc-full{color:#16a34a;background:rgba(22,163,74,.12)}
[data-theme="dark"] .acc-full{color:#4ade80;background:rgba(74,222,128,.12)}
.acc-paid{color:var(--text-3);background:color-mix(in srgb,currentColor 10%,transparent)}
.new-count{color:#ef4444;font-weight:700}
.side-meta .cat-label{font-size:11.5px}
.side-item h3{font-size:14.5px;font-weight:600;line-height:1.4;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--t-fast)}
.side-item h3[lang="en"]{font-family:var(--font-display);font-size:15px}
.side-item:hover h3{color:var(--accent)}
.side-src{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ── 今日速览 + 订阅卡 ── */
.brief-section{padding:20px 0 0}
.brief-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:20px;align-items:start}
.brief-aside{display:flex;flex-direction:column;gap:16px;min-width:0}
.brief-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:6px 0 8px}
.brief-head{display:flex;align-items:baseline;gap:10px;padding:14px 22px 10px;border-bottom:1px solid var(--line)}
.brief-head h2{font-size:17px;font-weight:750;color:var(--text)}
.brief-count{font-family:var(--font-mono);font-size:12px;color:var(--accent)}
.brief-head small{margin-left:auto;font-size:12px;color:var(--text-3)}
.brief-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:0;padding:4px 0}
.brief-list .skel-line{margin:14px 22px 0}
.brief-item{display:flex;gap:12px;padding:10px 22px;border-bottom:1px dashed var(--line);transition:background-color var(--t-fast)}
.brief-item:hover{background:var(--surface-2)}
.brief-item:nth-last-child(-n+2){border-bottom:0}
.brief-num{font-family:var(--font-mono);font-size:11.5px;font-weight:600;color:var(--text-3);padding-top:3px;flex-shrink:0;width:18px}
.brief-body{min-width:0;display:flex;flex-direction:column;gap:3px}
.brief-body h3{font-size:14.5px;font-weight:600;line-height:1.5;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--t-fast)}
.brief-body h3[lang="en"]{font-family:var(--font-display);font-size:15px}
.brief-item:hover h3{color:var(--accent)}
.brief-meta{display:flex;align-items:center;gap:10px;font-size:11.5px;color:var(--text-3);white-space:nowrap;overflow:hidden}
.brief-meta .cat-label{font-size:11.5px}
.brief-meta>span:not(.cat-label){overflow:hidden;text-overflow:ellipsis}

.sub-card{position:relative;display:flex;flex-direction:column;padding:24px 24px 20px;border-radius:var(--radius-lg);border:1px solid color-mix(in srgb,var(--accent) 35%,var(--line));background:radial-gradient(120% 90% at 100% 0%,color-mix(in srgb,var(--accent) 16%,transparent),transparent 60%),var(--surface);box-shadow:var(--shadow-sm);scroll-margin:120px}
.sub-card.flash{animation:flash 1.2s var(--ease)}
@keyframes flash{0%,100%{box-shadow:var(--shadow-sm)}30%{box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 45%,transparent)}}
.sub-kicker{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.sub-card h3{margin:10px 0 8px;font-size:21px;font-weight:750;letter-spacing:-.01em;color:var(--text)}
.sub-card p{font-size:13.5px;line-height:1.7;color:var(--text-2);margin-bottom:16px}
.sub-card .sub-form{flex-direction:column}
.sub-card .btn-sub{height:42px;font-size:14px}
.sub-card .sub-input{flex:none;height:42px}
.sub-points{list-style:none;margin-top:auto;padding-top:16px;display:flex;flex-direction:column;gap:6px;font-size:12px;color:var(--text-3)}
.sub-points li{display:flex;align-items:center;gap:8px}
.sub-points li::before{content:'';width:5px;height:5px;border-radius:50%;background:var(--accent);flex-shrink:0}

.sub-band{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;gap:16px 24px;flex-wrap:wrap;padding:18px 22px;border-radius:var(--radius-md);border:1px dashed color-mix(in srgb,var(--accent) 45%,var(--line));background:color-mix(in srgb,var(--accent) 7%,var(--surface));animation:rise .5s var(--ease) both;animation-delay:calc(min(var(--i,0),10) * 35ms)}
.sub-band-copy{display:flex;flex-direction:column;gap:2px;min-width:0}
.sub-band-copy strong{font-size:15px;font-weight:700;color:var(--text)}
.sub-band-copy span{font-size:13px;color:var(--text-2)}
.sub-band .sub-form{flex:1;min-width:260px;max-width:420px}

/* ── 原创解读 ── */
.orig-section{padding:40px 0 0}
.orig-section[hidden]{display:none}
.orig-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.orig-card:nth-child(n+7){display:none}   /* 宽屏每行 3 张，只放 6 张；手机横滑时全部显示 */
.orig-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),border-color var(--t-fast),box-shadow .3s var(--ease)}
.orig-card:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--c) 45%,var(--line));box-shadow:var(--shadow-md)}
.orig-thumb{position:relative;aspect-ratio:16/7;overflow:hidden;background:var(--surface-2)}
/* 原作封面：完整显示（contain），比例不一致时用同图模糊铺底，竖版/4:3 封面不被裁掉标题 */
.orig-thumb img{position:absolute;inset:0;display:block;width:100%;height:100%}
.orig-thumb img.bg{object-fit:cover;filter:blur(16px) saturate(1.2) brightness(.55);transform:scale(1.2)}
.orig-thumb img.fg{object-fit:contain;transition:transform .5s var(--ease)}
.orig-card:hover .orig-thumb img.fg{transform:scale(1.03)}
.orig-play{position:absolute;left:14px;bottom:12px;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;color:#fff;background:rgba(0,0,0,.45);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.35);transition:transform var(--t-fast),background-color var(--t-fast)}
.orig-play svg{width:16px;height:16px;margin-left:2px}
.orig-card:hover .orig-play{transform:scale(1.08);background:var(--accent);color:var(--accent-ink);border-color:transparent}
.orig-dur{position:absolute;right:12px;bottom:12px;padding:2px 7px;border-radius:6px;font-family:var(--font-mono);font-size:11px;color:#fff;background:rgba(0,0,0,.5)}
.orig-body{display:flex;flex-direction:column;gap:6px;padding:14px 18px 16px}
.orig-meta{display:flex;align-items:center;gap:10px;font-size:11.5px;color:var(--text-3);white-space:nowrap;overflow:hidden}
.orig-type{font-weight:700;color:var(--c,var(--accent))}
.orig-meta time{margin-left:auto}
.orig-card h3{font-size:16px;font-weight:700;line-height:1.5;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--t-fast)}
.orig-card:hover h3{color:var(--accent)}
.orig-card p{font-size:13px;line-height:1.7;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ── Section / tabs ── */
.category-section{padding:40px 0 0}
.section-header{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:16px}
.section-title{display:flex;align-items:baseline;flex-wrap:wrap;gap:6px 14px;font-size:24px;font-weight:750;letter-spacing:-.01em;color:var(--text)}
.section-count{font-size:13px;font-weight:500;color:var(--text-3);letter-spacing:0}
.category-tabs{display:flex;gap:8px;margin-bottom:24px;overflow-x:auto;scrollbar-width:none;padding:2px 0 4px;-webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 32px),transparent);mask-image:linear-gradient(90deg,#000 calc(100% - 32px),transparent)}
.category-tabs::-webkit-scrollbar{display:none}
.cat-tab{display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 14px;border-radius:999px;font-size:13.5px;font-weight:550;white-space:nowrap;color:var(--text-2);background:var(--surface);border:1px solid var(--line);transition:color var(--t-fast),border-color var(--t-fast),background-color var(--t-fast)}
.cat-tab:last-child{margin-right:28px}
.cat-tab:hover{color:var(--text);border-color:var(--line-strong)}
.cat-tab.empty{opacity:.5}
.cat-tab .ct-count{font-family:var(--font-mono);font-size:11px;font-weight:500;color:var(--text-3)}
.cat-tab.active{color:var(--text);background:color-mix(in srgb,var(--c) 12%,var(--surface));border-color:color-mix(in srgb,var(--c) 55%,transparent)}
.cat-tab.active .ct-count{color:var(--c)}

/* ── Layout ── */
.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;padding-bottom:56px;align-items:start}

/* ── News cards ── */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.news-grid>.news-card.span{grid-column:1/-1}
.grid-empty{grid-column:1/-1;text-align:center;padding:64px 20px;color:var(--text-3);background:var(--surface);border:1px dashed var(--line-strong);border-radius:var(--radius-md)}
.news-card{position:relative;display:flex;flex-direction:column;padding:20px 22px 16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),border-color var(--t-fast),box-shadow .3s var(--ease),background-color var(--t-fast);animation:rise .5s var(--ease) both;animation-delay:calc(min(var(--i,0),10) * 35ms)}
.news-card:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--c) 45%,var(--line));box-shadow:var(--shadow-md);background:var(--surface-hover)}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
.card-top time{font-size:12px;color:var(--text-3);white-space:nowrap}
.news-card h3{font-family:var(--font-display);font-size:18px;font-weight:600;line-height:1.42;letter-spacing:-.005em;color:var(--text);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--t-fast)}
.news-card:hover h3{color:var(--accent)}
.news-card .zh-sum{color:var(--text);opacity:.88;font-size:14px;line-height:1.75;-webkit-line-clamp:2}
.news-card.featured .zh-sum{font-size:15px}
.news-card p{margin-top:8px;font-size:13.5px;line-height:1.7;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.news-card-footer{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:14px;padding-top:12px;border-top:1px solid var(--line);font-size:12px;color:var(--text-3)}
.news-card-footer .author{font-weight:600;color:var(--text-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-card .read{opacity:0;transform:translateX(-4px);transition:opacity var(--t-fast),transform var(--t-fast)}
.news-card:hover .read,.news-card:focus-visible .read{opacity:1;transform:none}
.news-card.featured{grid-column:1/-1;padding:26px 28px 18px}
.news-card.featured::before{content:'';position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:0 3px 3px 0;background:var(--c)}
.news-card.featured h3{font-size:24px;line-height:1.32;-webkit-line-clamp:2}
.news-card.featured p{font-size:14.5px;-webkit-line-clamp:2}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ── Sidebar ── */
/* 吸顶位置随侧栏高度（--sb-h，JS 写入）计算：比视口高时改为贴底吸附，底部内容不被裁掉 */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:min(84px,calc(100vh - var(--sb-h,0px) - 20px))}
.sidebar-block{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm)}
.hot-list{padding:4px 0}
.hot-item{display:flex;flex-direction:column;gap:4px;padding:12px 20px;border-bottom:1px solid var(--line);transition:background-color var(--t-fast)}
.hot-item:last-child{border-bottom:0}
.hot-item:hover{background:var(--surface-2)}
.hot-item .cat-label{font-size:11.5px}
.hot-item h4{font-family:var(--font-display);font-size:14.5px;font-weight:600;line-height:1.42;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--t-fast)}
.hot-item h4:not([lang="en"]){font-family:var(--font-body);font-size:14px;line-height:1.5}
.hot-item:hover h4{color:var(--accent)}
.hot-item .views{font-size:11.5px;color:var(--text-3)}
.sub-form{display:flex;gap:8px}
.sub-input{flex:1;min-width:0;height:40px;padding:0 12px;font:inherit;font-size:13.5px;color:var(--text);background:var(--bg);border:1px solid var(--line-strong);border-radius:10px;outline:none;transition:border-color var(--t-fast),box-shadow var(--t-fast)}
.sub-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.sub-input::placeholder{color:var(--text-3)}
.btn-sub{flex-shrink:0;height:40px;padding:0 18px;font-size:13.5px;font-weight:650;color:var(--accent-ink);background:var(--accent);border-radius:10px;white-space:nowrap;transition:background-color var(--t-fast)}
.btn-sub:hover{background:var(--accent-strong)}
.btn-sub:disabled{opacity:.7;cursor:progress}
.topic-cloud{display:flex;flex-wrap:wrap;gap:7px;padding:16px 20px 18px}
.topic-tag{padding:5px 11px;font-size:12px;line-height:1.4;border-radius:999px;color:var(--text-2);background:var(--surface-2);border:1px solid var(--line);transition:color var(--t-fast),border-color var(--t-fast),background-color var(--t-fast)}
.topic-tag:hover{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 45%,transparent);background:var(--accent-soft)}

/* ── Sources ── */
.sources-section{padding:8px 0 56px}
.sources-banner{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:28px 48px;padding:32px 36px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg)}
.sources-intro h2{font-size:20px;font-weight:750;color:var(--text);margin-bottom:10px}
.sources-intro p{font-size:13.5px;line-height:1.75;color:var(--text-2)}
.source-chips{display:flex;flex-wrap:wrap;align-content:flex-start;gap:8px}
.source-chip{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 12px;font-size:12.5px;color:var(--text-2);background:var(--surface-2);border:1px solid var(--line);border-radius:999px}
.source-chip em{font-style:normal;font-family:var(--font-mono);font-size:11px;color:var(--text-3)}
.source-chip .dot{width:6px;height:6px;background:var(--text-3)}
.source-chip .dot.online{background:#22c55e}
.source-chip.off{opacity:.55}
.source-chip.summary{color:var(--text);font-weight:600;border-color:color-mix(in srgb,#22c55e 40%,transparent);background:color-mix(in srgb,#22c55e 8%,var(--surface))}

/* ── Footer ── */
.site-footer{position:relative;z-index:1;background:var(--bg-2);border-top:1px solid var(--line);padding:48px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:32px;margin-bottom:36px}
.footer-brand h3{font-size:17px;font-weight:750;color:var(--text);margin-bottom:10px}
.footer-brand p{max-width:320px;font-size:13px;line-height:1.75;color:var(--text-3)}
.footer-col h4{font-size:12px;font-weight:650;letter-spacing:.08em;color:var(--text-2);margin-bottom:12px}
.footer-col a,.footer-col span{display:block;padding:4px 0;font-size:13px;color:var(--text-3);transition:color var(--t-fast)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:20px;border-top:1px solid var(--line);font-size:12px;color:var(--text-3)}
.footer-bottom .accent{color:var(--accent)}
.footer-links{display:flex;gap:20px}
.footer-links a:hover{color:var(--accent)}

/* ── Back to top ── */
.back-to-top{position:fixed;right:24px;bottom:24px;z-index:998;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;color:var(--text);background:var(--surface);border:1px solid var(--line-strong);box-shadow:var(--shadow-md);opacity:0;transform:translateY(12px);pointer-events:none;transition:opacity .3s,transform .3s var(--ease),color var(--t-fast),border-color var(--t-fast)}
.back-to-top svg{width:18px;height:18px}
.back-to-top.visible{opacity:1;transform:none;pointer-events:auto}
.back-to-top:hover{color:var(--accent);border-color:var(--accent)}
body.has-wx-bar .back-to-top{bottom:calc(100px + env(safe-area-inset-bottom))}

/* ── Toast ── */
.toast{position:fixed;right:24px;bottom:24px;z-index:99999;max-width:320px;padding:12px 18px;border-radius:10px;font-size:13px;font-weight:550;line-height:1.5;color:#fff;background:var(--accent-violet);box-shadow:0 10px 30px -8px rgba(0,0,0,.45);opacity:0;transform:translateY(16px);transition:opacity .3s,transform .3s var(--ease);pointer-events:none}
.toast.show{opacity:1;transform:none}
.toast.success{color:var(--accent-ink);background:var(--accent)}
.toast.error{background:var(--accent-rose)}

/* ── 手机端「展开更多」 ── */
.more-btn{display:none;align-items:center;justify-content:center;gap:6px;width:calc(100% - 32px);height:40px;margin:6px 16px 8px;border-radius:10px;border:1px solid var(--line-strong);font-size:13px;font-weight:600;color:var(--text-2);transition:color var(--t-fast),border-color var(--t-fast)}
.more-btn[hidden]{display:none}
.more-btn:hover{color:var(--accent);border-color:var(--accent)}
.more-btn svg{width:14px;height:14px;transition:transform var(--t-fast)}
.more-btn[aria-expanded="true"] svg{transform:rotate(180deg)}

/* ── Skeleton ── */
.skel-card{padding:22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);min-height:190px}
.skel-line,.skel-tag{border-radius:6px;background:linear-gradient(90deg,var(--surface-2) 25%,var(--line-strong) 50%,var(--surface-2) 75%);background-size:200% 100%;animation:shimmer 1.4s infinite}
.skel-line{height:12px;margin-bottom:12px}
.skel-tag{width:72px;height:14px;margin-bottom:18px}
.skel-line.w40{width:40%}.skel-line.w60{width:60%}.skel-line.w80{width:80%}.skel-line.w100{width:100%}
@keyframes shimmer{from{background-position:200% 0}to{background-position:-200% 0}}

/* 旧版「英文原文」展开块（保留兼容） */
.card-summary{margin-top:12px;padding:12px 14px;font-size:12.5px;line-height:1.8;color:var(--text-2);background:var(--surface-2);border-left:3px solid var(--accent);border-radius:8px}
.card-summary .summary-label{font-size:10px;font-weight:700;color:var(--accent);letter-spacing:.08em;margin-bottom:6px;text-transform:uppercase}

/* ── Responsive ── */
@media (min-width:761px) and (max-height:820px){
  .hero-section{padding-top:20px}
  .hero-copy{padding:26px 8px 24px 32px}
  .hero-kicker{margin-bottom:12px}
  .hero-copy h2{font-size:26px;-webkit-line-clamp:3}
  .hero-copy p{margin-top:10px;-webkit-line-clamp:2}
  .hero-meta{padding-top:14px}
  .side-item{padding:9px 18px}
}
@media (max-width:1240px){
  .main-nav a{padding:8px 8px;font-size:13.5px}
  .main-nav a.nav-active::after{left:8px;right:8px}
  .refresh-btn{display:none}
}
@media (max-width:1100px){
  .main-nav{display:none}
  .header-actions{margin-left:auto}
  .icon-btn.menu{display:grid}
  .refresh-btn{display:none}
  .hero-grid{grid-template-columns:1fr}
  .brief-grid{grid-template-columns:minmax(0,1fr) 300px}
  .brief-list{grid-template-columns:1fr}
  .brief-item:nth-last-child(-n+2){border-bottom:1px dashed var(--line)}
  .brief-item:last-child{border-bottom:0}
  .orig-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-side-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
  .side-item:nth-child(odd){border-right:1px solid var(--line)}
  .side-item:nth-last-child(-n+2){border-bottom:0}
  /* 顶栏导航收起后，分类标签吸附在顶栏下方，长列表里也能随时切换领域 */
  .category-tabs{position:sticky;top:64px;z-index:20;margin:0 -28px 20px;padding:10px 28px;background:var(--header-bg);backdrop-filter:saturate(180%) blur(18px);-webkit-backdrop-filter:saturate(180%) blur(18px);box-shadow:0 1px 0 var(--line)}
  .content-layout{grid-template-columns:1fr}
  .sidebar{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}
  .sidebar-block:first-child{grid-row:span 2}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:760px){
  body{font-size:14.5px}
  .container{padding:0 16px}
  .top-bar .date,.top-bar .updated,.top-bar-right{display:none}
  .header .container{height:56px;gap:12px}
  .logo-icon{width:32px;height:32px}
  .logo-icon img{width:28px;height:28px}
  .logo-text strong{font-size:16px}
  .logo-text span{display:none}
  .sub-cta{height:34px;padding:0 12px}
  .sub-cta span{font-size:0}
  .sub-cta span::after{content:'订阅';font-size:13px}
  .ticker-bar{height:38px}
  .ticker-label{padding:0 12px 0 16px}
  .ticker-title{max-width:260px}
  .hero-section{padding-top:16px}
  .hero-main{height:auto;min-height:0}
  /* 手机：原生横滑，手指跟随 + 吸附 */
  .hero-track{position:relative;display:flex;overflow-x:auto;overflow-y:hidden;touch-action:auto;scroll-snap-type:x mandatory;overscroll-behavior-x:contain;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .hero-track::-webkit-scrollbar{display:none}
  .hero-slide,.hero-slide.active{position:relative;inset:auto;flex:0 0 100%;min-width:0;opacity:1;visibility:visible;transition:none;scroll-snap-align:start;scroll-snap-stop:always}
  .hero-slide.active .hero-kicker,.hero-slide.active h2,.hero-slide.active p{animation:none}
  .hero-lead{grid-template-columns:1fr;grid-template-rows:auto auto}
  .hero-art{grid-row:1;height:132px;-webkit-mask-image:linear-gradient(180deg,#000 40%,transparent);mask-image:linear-gradient(180deg,#000 40%,transparent)}
  .hero-copy{grid-row:2;padding:4px 20px 34px}
  .hero-copy h2{font-size:22px;-webkit-line-clamp:4}
  .hero-copy p{font-size:14px}
  .hero-meta{padding-top:16px}
  .hero-meta .read{display:none}
  .hero-dots{left:20px;bottom:6px}
  .hero-side-list{display:flex}
  .side-item:nth-child(odd){border-right:0}
  .side-item:nth-last-child(-n+2){border-bottom:1px solid var(--line)}
  .side-item:last-child{border-bottom:0}
  .brief-section{padding-top:14px}
  .brief-grid{grid-template-columns:1fr;gap:14px}
  .brief-head{padding:12px 16px 8px}
  .brief-item{padding:10px 16px}
  .more-btn{display:flex}
  .brief-list:not(.expanded) .brief-item:nth-child(n+7){display:none}
  .brief-list:not(.expanded) .brief-item:nth-child(6){border-bottom:0}
  .source-chips:not(.expanded){max-height:136px;overflow:hidden;-webkit-mask-image:linear-gradient(180deg,#000 55%,transparent);mask-image:linear-gradient(180deg,#000 55%,transparent)}
  .sources-banner .more-btn{width:100%;margin:12px 0 0}
  .sub-card{padding:20px 18px 18px}
  .sub-points{flex-direction:row;flex-wrap:wrap;gap:6px 16px}
  .sub-band{padding:16px}
  .sub-band .sub-form{min-width:0;max-width:none;flex-basis:100%}
  .brief-aside .sidebar-block{display:none}
  .orig-section{padding-top:32px}
  .orig-list{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:12px;margin:0 -16px;padding:0 16px 6px;scrollbar-width:none}
  .orig-list::-webkit-scrollbar{display:none}
  .orig-card,.orig-card:nth-child(n+7){display:flex;flex:0 0 82%;scroll-snap-align:start}
  .category-section{padding-top:32px}
  .section-title{font-size:21px}
  .category-tabs{top:56px;margin:0 -16px 16px;padding:8px 16px}
  .cat-tab{height:34px;padding:0 12px;font-size:13px}
  .news-grid{grid-template-columns:1fr;gap:12px}
  .news-card{padding:18px 18px 14px}
  .news-card h3{font-size:17px}
  .news-card.featured{padding:20px 20px 16px}
  .news-card.featured h3{font-size:20px;-webkit-line-clamp:3}
  .news-card .read{opacity:1;transform:none}
  .sidebar{display:flex}
  .sources-banner{grid-template-columns:1fr;padding:24px 20px}
  .site-footer{padding:36px 0 20px}
  .footer-grid{grid-template-columns:1fr;gap:22px;margin-bottom:24px}
  .footer-col{display:flex;flex-wrap:wrap;gap:2px 16px}
  .footer-col h4{flex-basis:100%;margin-bottom:6px}
  .footer-col a,.footer-col span{padding:3px 0}
  .back-to-top{right:16px;bottom:calc(16px + env(safe-area-inset-bottom))}
  .toast{left:16px;right:16px;bottom:calc(16px + env(safe-area-inset-bottom));max-width:none;text-align:center}
}
@media (hover:none){.news-card .read{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .ticker-track{animation:none}
  .ticker-viewport{overflow-x:auto}
}

/* ══ 公众号联动 ══ */
.sub-gift{display:block;margin:-4px 0 12px;font-size:13px;font-weight:600;color:var(--c-amber,#f59e0b)}
[data-theme="dark"] .sub-gift{color:#fbbf24}
.sub-gift:hover{text-decoration:underline}
.wx-card{display:flex;gap:14px;align-items:center;padding:14px;border-radius:var(--radius-lg);border:1px solid var(--line);background:var(--surface)}
.wx-card img{width:88px;height:88px;border-radius:8px;background:#fff;flex:none}
.wx-card .wx-kicker{display:block;font-size:11px;letter-spacing:.14em;color:#22c55e;font-weight:700}
.wx-card b{display:block;font-size:15px;margin:2px 0 4px}
.wx-card p{margin:0;font-size:12.5px;line-height:1.7;color:var(--text-2)}
.wx-card em,.wx-inline em{font-style:normal;font-weight:700;color:#f59e0b}
[data-theme="dark"] .wx-card em,[data-theme="dark"] .wx-inline em{color:#fbbf24}
.orig-follow{display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 12px;border-radius:99px;border:1px solid color-mix(in srgb,#22c55e 40%,transparent);background:color-mix(in srgb,#22c55e 10%,transparent);color:#16a34a;font-size:13px;font-weight:600;cursor:pointer;white-space:nowrap}
[data-theme="dark"] .orig-follow{color:#4ade80}
.footer-wx{display:flex;gap:12px;align-items:center;margin-top:14px;font-size:12.5px;line-height:1.7;color:var(--text-2)}
.footer-wx img{width:76px;height:76px;border-radius:6px;background:#fff;flex:none}
/* 弹层 */
.modal{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:16px;opacity:0;transition:opacity .2s}
.modal.open{opacity:1}
.modal-backdrop{position:absolute;inset:0;background:rgba(3,7,18,.6);backdrop-filter:blur(3px)}
.modal-card{position:relative;width:min(440px,100%);max-height:calc(100vh - 32px);overflow:auto;padding:24px 22px 20px;border-radius:18px;background:var(--surface);border:1px solid var(--line);box-shadow:0 30px 80px -20px rgba(0,0,0,.6);transform:translateY(8px);transition:transform .2s}
.modal.open .modal-card{transform:none}
.modal-x{position:absolute;top:10px;right:12px;width:32px;height:32px;border:0;border-radius:8px;background:transparent;color:var(--text-3);font-size:22px;line-height:1;cursor:pointer}
.modal-kicker{font-size:12px;font-weight:700;letter-spacing:.14em;color:#22c55e}
.modal-kicker.ok{color:var(--accent)}
.modal-card h3{margin:4px 0 8px;font-size:19px}
.modal-p{margin:0 0 12px;font-size:13.5px;color:var(--text-2)}
.modal-step{margin:16px 0 8px;font-size:13px;color:var(--text-2)}
.modal-step b{display:inline-block;margin-right:8px;padding:1px 8px;border-radius:6px;font-size:11.5px;background:var(--accent-soft);color:var(--accent)}
.modal-link{display:inline-block;margin-top:14px;font-size:13px;color:var(--accent)}
.modal-save{width:100%;margin-top:14px}
.wx-inline{display:flex;gap:14px;align-items:center;padding:12px;border-radius:12px;background:var(--surface-2);border:1px solid var(--line)}
.wx-inline img{width:96px;height:96px;border-radius:8px;background:#fff;flex:none}
.wx-inline.big img{width:132px;height:132px}
.wx-inline b{display:block;font-size:15px;margin-bottom:4px}
.wx-inline span{display:block;font-size:13px;line-height:1.7;color:var(--text-2)}
.wx-inline small{display:block;margin-top:4px;font-size:11.5px;color:var(--text-3)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{height:32px;padding:0 12px;border-radius:99px;border:1px solid var(--line);background:transparent;color:var(--text-2);font-size:13px;cursor:pointer}
.chip.on{border-color:var(--accent);background:var(--accent-soft);color:var(--accent);font-weight:600}
/* 微信内置浏览器底部关注条 */
.wx-bar{position:fixed;left:10px;right:10px;bottom:calc(10px + env(safe-area-inset-bottom));z-index:900;display:flex;align-items:center;gap:12px;padding:10px 40px 10px 10px;border-radius:14px;background:var(--surface);border:1px solid color-mix(in srgb,#22c55e 40%,var(--line));box-shadow:0 12px 40px -10px rgba(0,0,0,.5)}
.wx-bar img{width:56px;height:56px;border-radius:6px;background:#fff;flex:none}
.wx-bar b{display:block;font-size:14px}
.wx-bar span{display:block;font-size:12px;color:var(--text-2)}
.wx-bar button{position:absolute;top:6px;right:8px;width:28px;height:28px;border:0;background:transparent;color:var(--text-3);font-size:20px;cursor:pointer}
body.has-wx-bar{padding-bottom:90px}
@media (max-width:760px){
  .orig-follow{height:30px;padding:0 10px;font-size:12px}
  .orig-follow svg{display:none}
  .orig-section .section-header{position:relative;display:block}
  .orig-section .section-count{flex-basis:100%;padding-right:0}
  .orig-section .orig-follow{position:absolute;top:0;right:0}
}