:root{
  --bg:#f3f4f7; --card:#ffffff; --text:#111827; --sub:#5b6472; --mute:#8b94a3;
  --line:#e5e8ee; --accent:#a8741a; --accent-soft:rgba(168,116,26,.10);
  --up:#d93a3a; --shadow:0 1px 2px rgba(15,23,42,.05),0 6px 20px rgba(15,23,42,.05);
  --tab-bg:rgba(243,244,247,.86); --skel:#e9ecf1; --skel2:#f6f7f9;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",Roboto,"Helvetica Neue",Arial,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#090d15; --card:#111826; --text:#e8ecf3; --sub:#a3adbd; --mute:#76809a;
    --line:#1d2638; --accent:#d9b365; --accent-soft:rgba(217,179,101,.12);
    --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.28);
    --tab-bg:rgba(9,13,21,.86); --skel:#18202f; --skel2:#1f293b;
  }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 var(--font);-webkit-font-smoothing:antialiased;
  padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}
button{font:inherit;color:inherit}
a{color:inherit}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;color:#f4f6fb;
  background:
   radial-gradient(900px 340px at 85% -20%,rgba(217,179,101,.38),transparent 60%),
   radial-gradient(700px 300px at -10% 120%,rgba(60,110,200,.35),transparent 60%),
   linear-gradient(160deg,#0b1220 0%,#111c34 55%,#0e1730 100%);
  padding:calc(env(safe-area-inset-top) + 18px) 20px 30px}
.hero::before{content:"";position:absolute;inset:0;opacity:.35;pointer-events:none;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 1px,transparent 1px 38px);
  -webkit-mask-image:linear-gradient(to bottom,#000,transparent);mask-image:linear-gradient(to bottom,#000,transparent)}
.hero-inner{position:relative;max-width:1080px;margin:0 auto}
.hero-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:22px}
.brand{display:inline-flex;align-items:center;gap:8px;font-size:14px;letter-spacing:.2em;color:#d9b365;font-weight:600}
.demo-pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;line-height:1.6;font-weight:600;letter-spacing:.04em;
  color:#ffd98a;background:rgba(255,200,90,.14);border:1px solid rgba(255,200,90,.45);white-space:nowrap}
h1{margin:0;font-size:clamp(34px,8.5vw,56px);line-height:1.12;letter-spacing:.06em;font-weight:800}
.lead{margin:10px 0 0;color:#b9c3d8;font-size:clamp(14px,3.6vw,17px);max-width:34em}
.today{margin:14px 0 0;font-size:13px;color:#d9b365;letter-spacing:.08em}

/* ===== Tabs ===== */
.tabs-wrap{position:sticky;top:0;z-index:20;background:var(--tab-bg);
  -webkit-backdrop-filter:saturate(180%) blur(14px);backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line)}
.tabs{display:flex;gap:6px;max-width:1080px;margin:0 auto;padding:10px 16px;overflow-x:auto;
  scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{flex:0 0 auto;scroll-snap-align:center;min-height:40px;padding:0 16px;border:1px solid transparent;border-radius:999px;
  background:transparent;color:var(--sub);font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background .2s,color .2s,border-color .2s;-webkit-tap-highlight-color:transparent}
.tab:hover{color:var(--text)}
.tab.is-active{background:var(--text);color:var(--bg)}
.tab:focus-visible,.more:focus-visible,.card h2 a:focus-visible,.top:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.tab .n{margin-left:5px;font-size:12px;opacity:.6;font-weight:500}

/* ===== Feed ===== */
.container{max-width:1080px;margin:0 auto;padding:18px 16px 8px}
.notice{margin:0 0 14px;padding:10px 14px;border-radius:12px;font-size:13px;color:var(--accent);background:var(--accent-soft);border:1px dashed var(--accent)}
.feed{display:grid;grid-template-columns:1fr;gap:14px}
.card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px 16px 14px;box-shadow:var(--shadow);
  transition:transform .2s,border-color .2s;animation:rise .35s ease both}
.card:hover{transform:translateY(-2px);border-color:var(--accent)}
.card-top{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:8px}
.chip{font-size:12px;font-weight:700;color:var(--accent);background:var(--accent-soft);padding:2px 10px;border-radius:6px;letter-spacing:.04em}
.badge{font-size:11px;font-weight:700;color:var(--mute);border:1px solid var(--line);border-radius:6px;padding:1px 8px;white-space:nowrap}
.card h2{margin:0;font-size:18px;line-height:1.45;font-weight:700;letter-spacing:.01em}
.card h2 a{text-decoration:none;display:block;padding:2px 0}
.card h2 a:hover{color:var(--accent)}
.src{margin:6px 0 0;font-size:12.5px;color:var(--mute);line-height:1.5}
.src b{font-weight:500}
.sum{margin:8px 0 0;font-size:14.5px;line-height:1.65;color:var(--sub);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* skeleton */
.skel{pointer-events:none}
.skel i{display:block;border-radius:6px;background:linear-gradient(90deg,var(--skel) 25%,var(--skel2) 50%,var(--skel) 75%);background-size:200% 100%;animation:sh 1.3s infinite linear}
.skel .a{width:28%;height:16px;margin-bottom:12px}.skel .b{width:92%;height:20px;margin-bottom:8px}.skel .b2{width:64%;height:20px;margin-bottom:12px}
.skel .c{width:36%;height:12px;margin-bottom:12px}.skel .d{width:100%;height:13px;margin-bottom:8px}.skel .d2{width:80%;height:13px}

/* state & more */
.state{text-align:center;padding:56px 16px;color:var(--sub)}
.state svg{opacity:.55;margin-bottom:10px}
.state p{margin:4px 0}
.state button{margin-top:12px}
.more-wrap{display:flex;justify-content:center;padding:22px 0 10px}
.more{min-height:46px;min-width:160px;padding:0 28px;border-radius:999px;border:1px solid var(--line);background:var(--card);
  font-weight:600;font-size:15px;cursor:pointer;box-shadow:var(--shadow);transition:border-color .2s,color .2s}
.more:hover{border-color:var(--accent);color:var(--accent)}
.more[disabled]{opacity:.6;cursor:wait}
.end{text-align:center;color:var(--mute);font-size:13px;padding:16px 0 6px}

/* footer & top */
.footer{max-width:1080px;margin:18px auto 0;padding:22px 16px calc(34px + env(safe-area-inset-bottom));border-top:1px solid var(--line);
  color:var(--mute);font-size:12.5px;text-align:center}
.footer p{margin:4px 0}
.demo-pill.small{color:var(--accent);background:var(--accent-soft);border-color:var(--accent);font-size:11px;padding:1px 8px;margin-right:4px}
.top{position:fixed;right:max(16px,env(safe-area-inset-right));bottom:calc(18px + env(safe-area-inset-bottom));width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);background:var(--card);box-shadow:var(--shadow);display:grid;place-items:center;cursor:pointer;z-index:30}
.top[hidden]{display:none}

@keyframes sh{to{background-position:-200% 0}}
@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* ===== 平板 / 桌面 ===== */
@media (min-width:720px){
  .hero{padding:calc(env(safe-area-inset-top) + 26px) 32px 48px}
  .tabs{padding:12px 32px}
  .container{padding:26px 32px 8px}
  .feed{grid-template-columns:1fr 1fr;gap:18px}
  .card{padding:20px 20px 18px}
  .card h2{font-size:19px}
}
@media (min-width:1100px){
  .hero{padding-bottom:60px}
  .hero-inner,.tabs,.container,.footer{max-width:1080px}
}

/* 备案号链接 */
.icp a{color:inherit;text-decoration:none;border-bottom:1px dotted currentColor;padding:6px 2px}
.icp a:hover{color:var(--accent)}

/* ===== 总结 / 按钮 / 徽标 ===== */
.badges{display:inline-flex;gap:6px}
.sum-box{margin:10px 0 0;padding:10px 12px;border-radius:12px;background:var(--accent-soft);border-left:3px solid var(--accent)}
.sum-tag{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.12em;color:var(--accent);margin-bottom:2px}
.sum-box .sum{margin:0;font-size:14.5px;color:var(--text);-webkit-line-clamp:5}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:2px;margin-top:12px;min-height:42px;padding:0 20px;border-radius:999px;
  background:var(--text);color:var(--bg);font-weight:700;font-size:14.5px;text-decoration:none;-webkit-tap-highlight-color:transparent;transition:transform .15s,opacity .15s}
.btn:hover{opacity:.88}.btn:active{transform:scale(.97)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.card{display:flex;flex-direction:column}
.card .btn{align-self:flex-start}

/* ===== 数据卡 ===== */
.datacards{display:flex;gap:12px;overflow-x:auto;padding:2px 2px 14px;margin:0 -2px 6px;scroll-snap-type:x proximity;scrollbar-width:none}
.datacards::-webkit-scrollbar{display:none}
.dcard{flex:0 0 auto;min-width:168px;max-width:220px;scroll-snap-align:start;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:12px 14px;box-shadow:var(--shadow)}
.dc-title{font-size:12.5px;color:var(--sub);font-weight:600}
.dc-val{font-size:26px;font-weight:800;line-height:1.2;margin:4px 0 2px;letter-spacing:.01em}
.dc-val small{font-size:13px;font-weight:600;color:var(--sub)}
.dc-chg{font-size:12.5px;color:var(--accent);font-weight:600}
.dc-src{font-size:11px;color:var(--mute);line-height:1.5}
.dc-note{font-size:11px;color:var(--accent);margin-top:4px}
@media (min-width:720px){.datacards{flex-wrap:wrap;overflow:visible}.dcard{min-width:200px}}