/* Climate Data Watch —— 全站样式（方案二：暗色气候数据台） */
:root{
  --bg:#0A1017; --panel:#111A24; --panel-2:#16212E; --panel-glass:rgba(17,26,36,.78);
  --text:#E4EDF4; --muted:#8FA3B5;
  --brand:#33D6C6; --brand-strong:#5CE8D9; --brand-dim:rgba(51,214,198,.14);
  --blue:#4DA3FF; --accent:#F2A65A;
  --border:#1E2C3C; --border-strong:#2A3C50;
  --glow:0 0 0 1px rgba(51,214,198,.45), 0 10px 34px -14px rgba(51,214,198,.35);
  --radius:10px;
  --font-sans:"Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --font-mono:"Cascadia Mono","JetBrains Mono","SF Mono",Consolas,"Courier New",monospace;
}
[data-theme="light"]{
  --bg:#EFF4F9; --panel:#FFFFFF; --panel-2:#E7EEF5; --panel-glass:rgba(255,255,255,.82);
  --text:#132330; --muted:#5A6C7D;
  --brand:#0C8A80; --brand-strong:#0AA396; --brand-dim:rgba(12,138,128,.12);
  --blue:#2D6FE0; --accent:#C77427;
  --border:#D3DEE8; --border-strong:#B9C8D6;
  --glow:0 0 0 1px rgba(12,138,128,.4), 0 10px 30px -14px rgba(12,138,128,.3);
  --shadow:0 2px 10px rgba(19,35,48,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{max-width:100%;overflow-x:hidden}
body{font-family:var(--font-sans);background:var(--bg);color:var(--text);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;position:relative}
/* 缓慢漂移的渐变光晕 */
body::before{content:"";position:fixed;inset:-20% -10%;z-index:-1;pointer-events:none;
  background:radial-gradient(640px 420px at 10% -6%,rgba(51,214,198,.09),transparent 62%),
             radial-gradient(720px 480px at 92% -2%,rgba(77,163,255,.09),transparent 62%),
             radial-gradient(560px 420px at 50% 112%,rgba(242,166,90,.05),transparent 60%);
  animation:aurora 26s ease-in-out infinite alternate}
@keyframes aurora{from{transform:translate3d(-18px,-10px,0) scale(1)}to{transform:translate3d(22px,14px,0) scale(1.06)}}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{max-width:1220px;margin:0 auto;padding:0 24px;min-width:0}
.mono{font-family:var(--font-mono)}

/* ---------- 阅读进度条 ---------- */
.progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:90;
  background:linear-gradient(90deg,var(--brand),var(--blue));box-shadow:0 0 12px rgba(51,214,198,.6)}

/* ---------- 顶部导航（毛玻璃吸顶） ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--panel-glass);
  backdrop-filter:blur(14px) saturate(1.2);-webkit-backdrop-filter:blur(14px) saturate(1.2);
  border-bottom:1px solid var(--border);transition:box-shadow .3s ease}
.site-header .bar{display:flex;align-items:center;flex-wrap:wrap;gap:14px;padding:14px 24px;transition:padding .3s ease}
.site-header.scrolled{box-shadow:0 10px 30px -16px rgba(0,0,0,.55)}
.site-header.scrolled .bar{padding:9px 24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.08rem;letter-spacing:.02em;color:var(--text);white-space:nowrap;min-width:0}
.brand .dot{display:flex;align-items:center;justify-content:center;width:30px;height:30px;flex:none;
  border-radius:8px;background:linear-gradient(135deg,#0E7490,#2563EB);color:#fff}
.brand .dot svg{width:16px;height:16px}
.brand em{font-style:normal;color:var(--brand)}
.main-nav{display:flex;gap:2px;min-width:0}
.main-nav a{padding:7px 13px;border-radius:8px;font-size:.9rem;color:var(--muted);transition:color .25s,background .25s}
.main-nav a:hover{color:var(--text);background:var(--panel-2)}
.main-nav a.active{color:var(--brand);background:var(--brand-dim)}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:10px;min-width:0}
.nav-search{display:flex;align-items:center;position:relative;min-width:0}
.nav-search input{width:210px;max-width:100%;padding:8px 34px 8px 12px;border:1px solid var(--border);
  border-radius:8px;background:var(--panel-2);color:var(--text);font-size:.88rem;outline:none;
  transition:border-color .25s,box-shadow .25s}
.nav-search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-dim)}
.nav-search input::placeholder{color:var(--muted)}
.nav-search button{position:absolute;right:5px;display:flex;align-items:center;justify-content:center;
  width:28px;height:28px;border:0;border-radius:6px;background:transparent;color:var(--muted);cursor:pointer;transition:color .25s}
.nav-search button:hover{color:var(--brand)}
.icon-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;flex:none;
  border:1px solid var(--border);border-radius:8px;background:var(--panel-2);color:var(--muted);cursor:pointer;
  transition:color .25s,border-color .25s}
.icon-btn:hover{color:var(--brand);border-color:var(--brand)}
.icon-btn .moon{display:none}
[data-theme="dark"] .icon-btn .sun{display:none}
[data-theme="dark"] .icon-btn .moon{display:block}

/* ---------- 按钮 / 标签 / 筛选 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;border-radius:8px;
  border:1px solid transparent;font-size:.93rem;font-weight:600;cursor:pointer;
  transition:transform .25s,box-shadow .25s,background .25s,border-color .25s,color .25s}
.btn-primary{background:linear-gradient(135deg,var(--brand),#22B8D5);color:#062A26;box-shadow:0 6px 22px -10px rgba(51,214,198,.55)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px -10px rgba(51,214,198,.6)}
.btn-ghost{border-color:var(--border-strong);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);box-shadow:0 0 0 3px var(--brand-dim)}
.btn-sm{padding:7px 14px;font-size:.84rem}
.tag{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border:1px solid var(--border-strong);
  border-radius:999px;font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--brand)}
.tag::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand);flex:none}
.chip{padding:6px 14px;border:1px solid var(--border-strong);border-radius:999px;background:transparent;
  color:var(--muted);font-family:var(--font-mono);font-size:.78rem;letter-spacing:.04em;cursor:pointer;
  transition:all .25s;white-space:nowrap}
.chip .n{opacity:.65;margin-left:4px}
.chip:hover{color:var(--text);border-color:var(--brand)}
.chip.active{background:var(--brand);border-color:var(--brand);color:#062A26;font-weight:700}
[data-theme="light"] .chip.active{color:#fff}

/* ---------- Hero：media 背景 + 渐变遮罩 ---------- */
.hero{position:relative;min-height:66vh;display:flex;align-items:flex-end;overflow:hidden;isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-2}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-veil{position:absolute;inset:0;z-index:-1;
  background:linear-gradient(to top,var(--bg) 2%,rgba(10,16,23,.72) 38%,rgba(10,16,23,.28) 72%,rgba(10,16,23,.45))}
[data-theme="light"] .hero-veil{background:linear-gradient(to top,var(--bg) 2%,rgba(19,35,48,.66) 40%,rgba(19,35,48,.22) 74%,rgba(19,35,48,.4))}
.hero-content{padding:84px 0 46px;max-width:860px;min-width:0}
.hero-chips{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.hero-date{font-family:var(--font-mono);font-size:.78rem;color:var(--muted);letter-spacing:.05em}
.hero h1{font-size:clamp(1.7rem,3.8vw,2.8rem);line-height:1.22;font-weight:800;letter-spacing:-.01em;
  text-shadow:0 2px 22px rgba(0,0,0,.45);margin-bottom:14px}
.hero-desc{color:#C7D5E1;max-width:70ch;min-width:0;margin-bottom:14px;font-size:1.02rem}
.hero-meta{font-family:var(--font-mono);font-size:.8rem;color:var(--muted);margin-bottom:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 区块公共 ---------- */
.section{padding:52px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}
.kicker{display:flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:.72rem;
  letter-spacing:.18em;text-transform:uppercase;color:var(--brand);margin-bottom:6px}
.kicker::before{content:"";width:9px;height:9px;background:var(--brand);border-radius:2px;box-shadow:0 0 10px rgba(51,214,198,.7)}
.section-head h2{font-size:1.5rem;font-weight:800;letter-spacing:-.01em}
.result-count{font-family:var(--font-mono);font-size:.8rem;color:var(--muted);white-space:nowrap}
.chip-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}

/* ---------- 首页主体：信息流行 + 网格卡 + 侧栏 ---------- */
.index-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start}
.feed{display:flex;flex-direction:column;gap:14px;min-width:0}
.rec{display:grid;grid-template-columns:280px minmax(0,1fr);background:var(--panel);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;transition:box-shadow .3s ease,border-color .3s ease,transform .3s ease}
.rec:hover{border-color:var(--border-strong);box-shadow:var(--glow);transform:translateY(-2px)}
.rec-media{position:relative;min-height:180px}
.rec-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.rec:hover .rec-media img{transform:scale(1.045)}
.rec-body{padding:18px 20px;display:flex;flex-direction:column;gap:8px;min-width:0}
.rec-tags{display:flex;gap:6px;flex-wrap:wrap}
.rec h3{font-size:1.08rem;font-weight:700;line-height:1.35}
.rec h3 a{transition:color .25s}
.rec h3 a:hover{color:var(--brand)}
.rec p{color:var(--muted);font-size:.92rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-meta{margin-top:auto;display:flex;align-items:center;gap:14px;font-family:var(--font-mono);font-size:.76rem;color:var(--muted)}
.rec-meta .au{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.sidebar{display:flex;flex-direction:column;gap:18px;min-width:0;position:sticky;top:84px}
.side-box{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px 16px 12px;min-width:0}
.side-box h4{display:flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:.72rem;
  letter-spacing:.16em;text-transform:uppercase;color:var(--brand);margin-bottom:10px}
.side-box h4::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px rgba(51,214,198,.8)}
.side-list{list-style:none}
.side-list li{display:flex;align-items:baseline;gap:10px;padding:8px 0;border-bottom:1px dashed var(--border);min-width:0}
.side-list li:last-child{border-bottom:0}
.side-list .t{flex:1 1 auto;min-width:0;font-size:.87rem;line-height:1.45;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.side-list .t a:hover{color:var(--brand)}
.side-list .d{flex:none;font-family:var(--font-mono);font-size:.7rem;color:var(--muted);white-space:nowrap}
.side-cats{display:flex;flex-wrap:wrap;gap:8px}
.side-cat{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border:1px solid var(--border-strong);
  border-radius:999px;font-family:var(--font-mono);font-size:.74rem;color:var(--muted);transition:all .25s}
.side-cat:hover{color:var(--brand);border-color:var(--brand)}
.side-cat .n{opacity:.6}

/* ---------- 网格卡片 ---------- */
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.card{display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;transition:box-shadow .3s ease,border-color .3s ease,transform .3s ease;min-width:0}
.card:hover{border-color:var(--border-strong);box-shadow:var(--glow);transform:translateY(-3px)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;display:block}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.05)}
.card-ph{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:var(--brand);
  background:linear-gradient(135deg,var(--panel-2),var(--panel))}
.card-ph svg{width:44px;height:44px;opacity:.5}
.card-body{padding:15px 16px 16px;display:flex;flex-direction:column;gap:8px;flex:1;min-width:0}
.card-tags{display:flex;gap:6px;flex-wrap:wrap}
.card h3{font-size:.98rem;font-weight:700;line-height:1.4}
.card h3 a:hover{color:var(--brand)}
.card p{color:var(--muted);font-size:.87rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;display:flex;align-items:center;gap:12px;font-family:var(--font-mono);font-size:.72rem;color:var(--muted)}
.card-meta .au{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.empty{display:none;padding:34px;text-align:center;color:var(--muted);border:1px dashed var(--border-strong);border-radius:var(--radius)}

/* ---------- 详情页 ---------- */
.crumbbar{display:flex;align-items:center;flex-wrap:wrap;gap:10px;padding:22px 0 0;
  font-family:var(--font-mono);font-size:.78rem;color:var(--muted)}
.back-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);transition:opacity .25s}
.back-link:hover{opacity:.75}
.crumb-title{color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}
.article-head{padding:20px 0 8px;max-width:900px}
.article-head h1{font-size:clamp(1.5rem,3.2vw,2.3rem);line-height:1.25;font-weight:800;margin:12px 0 12px}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 18px;font-family:var(--font-mono);font-size:.76rem;color:var(--muted)}
.article-figure{margin:20px 0 26px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);cursor:zoom-in}
.article-figure img{width:100%;max-height:560px;object-fit:cover}
.detail-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:30px;align-items:start;padding-bottom:14px}
.prose{min-width:0}
.prose p{margin-bottom:16px;color:#CBD8E4;font-size:1rem;line-height:1.85}
[data-theme="light"] .prose p{color:#2A3B49}
.prose h3{margin:26px 0 10px;font-size:1.1rem;font-weight:700;color:var(--brand);padding-left:12px;border-left:3px solid var(--brand)}
.info-card{position:sticky;top:84px;background:var(--panel-glass);backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);border:1px solid var(--border);border-top:2px solid var(--brand);
  border-radius:var(--radius);padding:18px;min-width:0}
.info-card h4{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brand);margin-bottom:12px}
.info-row{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:9px 0;
  border-bottom:1px dashed var(--border);font-size:.86rem}
.info-row:last-of-type{border-bottom:0}
.info-row span{color:var(--muted);flex:none}
.info-row b{font-family:var(--font-mono);font-weight:600;color:var(--text);text-align:right;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.info-id{color:var(--accent)!important}
.btn-block{width:100%;margin-top:14px}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:26px 0 8px}
.pager a{display:flex;flex-direction:column;gap:6px;padding:16px 18px;background:var(--panel);
  border:1px solid var(--border);border-radius:var(--radius);transition:border-color .25s,box-shadow .25s;min-width:0}
.pager a:hover{border-color:var(--brand);box-shadow:var(--glow)}
.pager .next{text-align:right}
.pager .dir{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--brand)}
.pager .pt{font-size:.92rem;font-weight:600;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
[data-theme="light"] .prose p{color:#2A3B49}

/* ---------- 灯箱 ---------- */
.lightbox{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;
  background:rgba(4,8,12,.9);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.lightbox.open{display:flex;animation:lbIn .25s ease}
.lightbox img{max-width:92vw;max-height:92vh;border-radius:8px;box-shadow:0 30px 80px rgba(0,0,0,.6)}
.lightbox .close{position:absolute;top:18px;right:22px;width:42px;height:42px;border:1px solid rgba(255,255,255,.25);
  border-radius:50%;background:transparent;color:#fff;font-size:1.15rem;cursor:pointer;transition:border-color .25s}
.lightbox .close:hover{border-color:var(--brand);color:var(--brand)}
@keyframes lbIn{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}

/* ---------- 返回顶部 ---------- */
.to-top{position:fixed;right:22px;bottom:22px;z-index:70;width:42px;height:42px;display:flex;align-items:center;
  justify-content:center;border:1px solid var(--border-strong);border-radius:50%;background:var(--panel-glass);
  backdrop-filter:blur(8px);color:var(--brand);cursor:pointer;opacity:0;pointer-events:none;
  transform:translateY(10px);transition:opacity .3s,transform .3s,border-color .25s}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{border-color:var(--brand)}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--border);margin-top:30px;padding:36px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px;margin-bottom:26px}
.footer-brand p{color:var(--muted);font-size:.88rem;margin-top:10px;max-width:52ch}
.site-footer h5{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);margin-bottom:12px}
.site-footer ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.site-footer ul a{color:var(--muted);font-size:.9rem;transition:color .25s}
.site-footer ul a:hover{color:var(--brand)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;padding-top:18px;
  border-top:1px dashed var(--border);color:var(--muted);font-size:.78rem}

/* ---------- 信息页 ---------- */
.page-wrap{max-width:860px;margin:0 auto;padding:46px 24px 30px}
.page-wrap h1{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;margin-bottom:6px}
.page-sub{font-family:var(--font-mono);font-size:.82rem;color:var(--muted);margin-bottom:26px}
.page-card{background:var(--panel);border:1px solid var(--border);border-top:2px solid var(--brand);
  border-radius:var(--radius);padding:28px 30px}
.page-card h2{font-size:1.12rem;font-weight:700;margin:22px 0 8px;color:var(--brand)}
.page-card h2:first-child{margin-top:0}
.page-card p,.page-card li{color:#C4D2DE;font-size:.95rem;line-height:1.8}
[data-theme="light"] .page-card p,[data-theme="light"] .page-card li{color:#33465A}
.page-card ul{padding-left:20px;display:flex;flex-direction:column;gap:6px}
.page-card a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease var(--d,0ms),transform .55s ease var(--d,0ms)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .index-grid{grid-template-columns:1fr}
  .sidebar{position:static}
  .detail-grid{grid-template-columns:1fr}
  .info-card{position:static}
}
@media (max-width:760px){
  .site-header .bar{gap:10px;padding:12px 16px}
  .main-nav{order:3;width:100%;justify-content:flex-start;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .nav-search{order:4;flex:1 1 100%}
  .nav-search input{width:100%}
  .rec{grid-template-columns:1fr}
  .rec-media{min-height:190px;aspect-ratio:16/9}
  .hero{min-height:56vh}
  .hero-content{padding:64px 0 36px}
  .cards{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:38px 0}
}