/* === biancoinheatmap.com — Core Stylesheet === */
/* Design: light data terminal + up-red/down-green heat spectrum, VARIANCE 9 / MOTION 4 / DENSITY 3 */

/* === RESET & BASE === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
  font-size:16px;line-height:1.7;color:#1f2329;
  background:#f7f8f9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* === CSS VARIABLES === */
:root{
  --c1:#f7f8f9;
  --c12:#ffffff;
  --c13:#eef0f3;
  --c1-card:#ffffff;
  --c5:#e4e6ea;
  --c5-strong:#c9ccd2;
  --c7:#1f2329;
  --c7-glow:rgba(31,35,41,0.12);
  --c7-dim:rgba(31,35,41,0.05);
  --c10:#1f2329;
  --c10-dim:#5b6470;
  --c10-muted:#6b7280;
  --c13:4px;
  --c13-lg:8px;
  --up:#e0302d;--down:#0b9d58;
  --c13-sm:8px;
  --c16:1100px;
  --c17:64px;
}

/* === TYPOGRAPHY === */
h1,h2,h3,h4{color:#16181d;font-family:'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;line-height:1.22;font-weight:800}
h1{font-size:clamp(1.9rem,4vw,2.9rem);letter-spacing:-0.02em}
h2{font-size:clamp(1.5rem,3vw,2.25rem);letter-spacing:-0.02em}
h3{font-size:1.125rem;letter-spacing:-0.01em}
p{margin-bottom:1rem}
a{color:var(--c7);text-decoration:none;transition:color .2s}
a:hover{color:#3c4048}

/* === CONTAINER === */
.wrapper{max-width:var(--c16);margin:0 auto;padding:0 24px}

/* === NAVIGATION === */
.topbar{
  position:sticky;top:0;z-index:100;
  background:rgba(247,248,249,0.96);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--c5);height:var(--c17);
}
.topbar .wrapper{
  display:flex;align-items:center;justify-content:space-between;
  height:100%;
}
.brand{
  font-size:1.25rem;font-weight:800;letter-spacing:-0.02em;
  color:#16181d;white-space:nowrap;
}
.brand span{color:var(--c7)}
.menu{display:flex;align-items:center;gap:32px;list-style:none}
.menu a{
  color:var(--c10-dim);font-size:0.9rem;font-weight:500;
  transition:color .2s;white-space:nowrap;
}
.menu a:hover,.menu a.a{color:#16181d}
.menu-btn{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--c7);color:#ffffff!important;
  padding:8px 18px;border-radius:999px;
  font-weight:700;font-size:0.85rem;
  transition:transform .15s,box-shadow .15s;
}
.menu-btn:hover{transform:translateY(-1px);box-shadow:0 4px 20px var(--c7-glow)}

/* Mobile nav toggle */
.nt{display:none;background:none;border:none;color:#16181d;font-size:1.5rem;cursor:pointer;padding:8px}

/* === HERO === */
.masthead{
  padding:80px 0 80px;
  background:radial-gradient(ellipse 70% 60% at 50% 0%,rgba(31,35,41,0.04),transparent 60%);
}
.masthead .wrapper{
  display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;
}
.he{
  font-size:0.75rem;text-transform:uppercase;letter-spacing:0.2em;
  color:var(--c7);margin-bottom:16px;font-weight:600;
}
.masthead-title{font-size:clamp(1.9rem,4vw,2.9rem);margin-bottom:18px}
.masthead-title span{color:var(--c7)}
.masthead-desc{
  font-size:1.05rem;color:var(--c10-dim);max-width:48ch;
  line-height:1.6;margin-bottom:32px;
}
.hc1{display:flex;gap:14px;flex-wrap:wrap}
.btn-solid{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c7);color:#ffffff;
  padding:13px 28px;border-radius:999px;
  font-weight:700;font-size:0.95rem;
  transition:transform .15s,box-shadow .15s;
  white-space:nowrap;
}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 8px 30px var(--c7-glow);color:#ffffff}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;color:#1f2329;
  padding:13px 28px;border-radius:999px;
  font-weight:600;font-size:0.95rem;
  border:1px solid var(--c5-strong);
  transition:border-color .2s,background .2s;
  white-space:nowrap;
}
.btn-ghost:hover{border-color:var(--c7);background:var(--c7-dim);color:#1f2329}
.hv{position:relative;aspect-ratio:4/3;border-radius:16px;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,0.4),0 0 0 1px rgba(255,255,255,0.06)}
.hvp{
  width:100%;height:100%;display:flex;align-items:center;justify-content:center;
  color:var(--c10-muted);font-size:0.85rem;
}
.hv img{width:100%;height:100%;object-fit:cover}

/* === SECTIONS === */
.block{padding:80px 0}
.block-shaded{background:var(--c12)}
.block-head{margin-bottom:48px}
.block-head.c{text-align:center}
.se{
  font-size:0.7rem;text-transform:uppercase;letter-spacing:0.22em;
  color:var(--c7);margin-bottom:12px;font-weight:600;
}
.block-title{font-size:clamp(1.5rem,3vw,2.25rem);margin-bottom:12px}
.sd{color:var(--c10-dim);max-width:60ch;font-size:0.95rem;line-height:1.6}

/* === FEATURES GRID === */
.fg{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:28px;
}
.fc{
  background:var(--c1-card);border:1px solid var(--c5);
  border-radius:var(--c13);padding:32px 28px;
  transition:border-color .25s,transform .25s;
}
.fc:hover{border-color:var(--c5-strong);transform:translateY(-2px)}
.fi{
  width:64px;height:64px;border-radius:var(--c13-sm);
  background:var(--c7-dim);display:flex;align-items:center;
  justify-content:center;margin-bottom:20px;font-size:1.3rem;
}
.fc h3{font-size:1.05rem;margin-bottom:10px}
.fc p{font-size:0.9rem;color:var(--c10-dim);line-height:1.6;margin:0}

/* === STATS === */
.sg{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:20px;
}
.sc{
  text-align:center;padding:32px 20px;
  background:var(--c1-card);border:1px solid var(--c5);
  border-radius:var(--c13);
}
.sv{
  font-size:2.5rem;font-weight:800;color:var(--c7);
  letter-spacing:-0.02em;line-height:1;
}
.sl{font-size:0.85rem;color:var(--c10-dim);margin-top:8px}

/* === NEWS (2-col large cards) === */
.ng{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(320px,1fr));
  gap:24px;
}
.nc{
  background:var(--c1-card);border:1px solid var(--c5);
  border-radius:var(--c13);overflow:hidden;
  transition:border-color .25s,transform .25s;
  display:flex;flex-direction:column;
}
.nc:hover{border-color:var(--c5-strong);transform:translateY(-2px)}
.nci{
  width:100%;height:200px;
  background:linear-gradient(135deg,var(--c13),var(--c12));
  display:flex;align-items:center;justify-content:center;
  color:var(--c10-muted);font-size:0.8rem;
;overflow:hidden}
.nci img{width:100%;height:100%;object-fit:cover}
.ncb{padding:20px 24px 24px;flex:1;display:flex;flex-direction:column}
.ncb h3{font-size:1.05rem;margin-bottom:8px}
.ncb h3 a{color:#16181d}
.ncb h3 a:hover{color:var(--c7)}
.ncd{font-size:0.9rem;color:var(--c10-dim);line-height:1.6;margin-bottom:12px;flex:1}
.ncd1{font-size:0.78rem;color:var(--c10-muted)}

/* === GUIDE (3-col cards) === */
.gg{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:24px;
}
.gc{
  background:var(--c1-card);border:1px solid var(--c5);
  border-radius:var(--c13);overflow:hidden;
  transition:border-color .25s,transform .25s;
}
.gc:hover{border-color:var(--c5-strong);transform:translateY(-2px)}
.gci{
  width:100%;height:180px;
  background:linear-gradient(135deg,var(--c13),var(--c12));
  display:flex;align-items:center;justify-content:center;
  color:var(--c10-muted);font-size:0.8rem;
;overflow:hidden}
.gci img{width:100%;height:100%;object-fit:cover}
.gcb{padding:18px 20px 20px}
.gcb h3{font-size:1rem;margin-bottom:6px}
.gcb h3 a{color:#16181d}
.gcb h3 a:hover{color:var(--c7)}
.gcb p{font-size:0.85rem;color:var(--c10-dim);line-height:1.5;margin:0}

/* === TRUST / PARTNER LOGO WALL === */
.tg{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;
  gap:40px 48px;padding:20px 0;
}
.ti{
  height:56px;display:flex;align-items:center;
  opacity:0.85;transition:opacity .3s;
}
.ti svg,.ti img{height:100%;width:auto}
.ti:hover{opacity:0.8}

/* === FOOTER === */
.page-footer{
  background:var(--c12);border-top:1px solid var(--c5);
  padding:56px 0 32px;
}
.fg1{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:40px;margin-bottom:40px;
}
.fb p{color:var(--c10-dim);font-size:0.9rem;line-height:1.7;margin-top:12px;max-width:36ch}
.fc1 h4{font-size:0.85rem;text-transform:uppercase;letter-spacing:0.08em;margin-bottom:16px;color:var(--c10)}
.fc1 ul{list-style:none}
.fc1 ul li{margin-bottom:10px}
.fc1 ul li a{color:var(--c10-dim);font-size:0.9rem;transition:color .2s}
.fc1 ul li a:hover{color:#16181d}
.fb1{
  border-top:1px solid var(--c5);padding-top:24px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:0.8rem;color:var(--c10-muted);
}
.fb1 a{color:var(--c10-dim)}

/* === BREADCRUMB === */
.crumbs{padding:16px 0;font-size:0.85rem}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:4px;align-items:center}
.crumbs li{color:var(--c10-dim);display:flex;align-items:center;gap:4px}
.crumbs a{color:var(--c10-dim)}
.crumbs a:hover{color:var(--c7)}
.crumbs .s{color:var(--c10-muted);margin:0 4px}

/* === ARTICLE LIST (栏目页) === */
.al{display:flex;flex-direction:column;gap:0}
.ali{
  display:grid;grid-template-columns:1fr auto;
  gap:20px;padding:22px 0;border-bottom:1px solid var(--c5);
  align-items:start;
}
.ali:last-child{border-bottom:none}
.ali h3{font-size:1.1rem;margin-bottom:6px}
.ali h3 a{color:#16181d}
.ali h3 a:hover{color:var(--c7)}
.ald{font-size:0.9rem;color:var(--c10-dim);line-height:1.6;margin-bottom:8px;max-width:80ch}
.ald1{font-size:0.78rem;color:var(--c10-muted);white-space:nowrap}

/* === ARTICLE DETAIL === */
.post{max-width:780px;margin:0 auto}
.post-head{margin-bottom:40px;padding-bottom:32px;border-bottom:1px solid var(--c5)}
.post-head h1{font-size:clamp(1.75rem,4vw,2.5rem);margin-bottom:16px}
.am{
  display:flex;gap:20px;flex-wrap:wrap;font-size:0.85rem;color:var(--c10-muted)
}
.post-body{line-height:1.9}
.post-body h2{
  font-size:1.35rem;margin:40px 0 16px;padding-bottom:8px;
  border-bottom:1px solid var(--c5)
}
.post-body h3{font-size:1.1rem;margin:28px 0 12px}
.post-body p{margin-bottom:20px;color:#3c4048}
.post-body ul,.post-body ol{margin-bottom:20px;padding-left:24px}
.post-body li{margin-bottom:8px;color:#3c4048}
.post-body img{max-width:100%;height:auto;border-radius:var(--c13-sm);margin:24px 0}
.post-body blockquote{
  border-left:3px solid var(--c7);padding:12px 20px;
  margin:24px 0;background:var(--c7-dim);border-radius:0 var(--c13-sm) var(--c13-sm) 0;
  font-style:italic;color:var(--c10-dim);
}
.af{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--c5);
}
.at{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.at1{
  display:inline-block;padding:4px 12px;
  background:var(--c1-card);border:1px solid var(--c5);
  border-radius:999px;font-size:0.78rem;color:var(--c10-dim);
}
.ra{margin-top:32px}
.ra h3{font-size:1.1rem;margin-bottom:16px}
.ra ul{list-style:none}
.ra ul li{margin-bottom:10px}
.ra ul li a{font-size:0.95rem}

/* === PAGINATION === */
.pager{
  display:flex;justify-content:center;gap:8px;margin-top:32px
}
.pager a,.pager span{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:40px;height:40px;padding:0 12px;
  border:1px solid var(--c5);border-radius:var(--c13-sm);
  font-size:0.9rem;color:var(--c10-dim);transition:all .2s;
}
.pager a:hover{border-color:var(--c7);color:var(--c7)}
.pager .c1{background:var(--c7);color:#ffffff;border-color:var(--c7);font-weight:700}
.pager .d{opacity:0.3;pointer-events:none}

/* === 404 === */
.ep{text-align:center;padding:100px 0}
.ep h1{font-size:6rem;color:var(--c7);line-height:1}
.ep p{color:var(--c10-dim);font-size:1.1rem;margin:16px 0 32px}
.el{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}

/* === SCROLL REVEAL === */
.r{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.r.v{opacity:1;transform:translateY(0)}

/* === RISK WARNING === */
.notice{
  background:rgba(31,35,41,0.03);border:1px solid rgba(31,35,41,0.12);
  border-radius:var(--c13-sm);padding:16px 20px;
  font-size:0.85rem;color:var(--c10-dim);line-height:1.6;margin-top:32px;
}
.notice strong{color:var(--c7)}

/* === SECTION DIVIDER (subtle) === */
.sd1{height:1px;background:var(--c5);max-width:var(--c16);margin:0 auto}

/* === RESPONSIVE === */
@media (max-width:768px){
  .menu{display:none}
  .menu.o{
    display:flex;flex-direction:column;
    position:absolute;top:var(--c17);left:0;right:0;
    background:rgba(247,248,249,0.98);backdrop-filter:blur(16px);
    padding:24px;gap:20px;border-bottom:1px solid var(--c5);
  }
  .nt{display:block}
  .masthead .wrapper{grid-template-columns:1fr;gap:40px}
  .hv{}
  .fg1{grid-template-columns:1fr 1fr;gap:32px}
  .ali{grid-template-columns:1fr}
}
@media (max-width:480px){
  .masthead{padding:48px 0 56px}
  .hc1{flex-direction:column}
  .block{padding:56px 0}
  .sg{grid-template-columns:1fr 1fr}
  .fg1{grid-template-columns:1fr}
  .pager a,.pager span{min-width:36px;height:36px;font-size:0.8rem}
  .ng{grid-template-columns:1fr}
  .gg{grid-template-columns:1fr}
}

/* === NAV LOGO IMG === */
.brand img{display:block;height:36px;width:auto}
.fb .brand img{height:32px}

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .r{opacity:1;transform:none;transition:none}
  .btn-solid,.btn-ghost,.menu-btn,.nc,.hm-cell{transition:none}
  .btn-solid:hover,.btn-ghost:hover,.menu-btn:hover,.nc:hover,.hm-cell:hover{transform:none;box-shadow:none}
}

/* === MONO DIGITS === */
.num{font-family:Consolas,'Roboto Mono',Menlo,monospace;font-variant-numeric:tabular-nums}
.up{color:var(--up)}
.down{color:var(--down)}

/* === HEATMAP HERO === */
.heat-hero{padding:48px 0 0}
.heat-hero .hc{max-width:660px;margin-bottom:36px}
.heat-hero .masthead-desc{margin:0 0 28px}
.heat-hero .hc1{justify-content:flex-start}
.hm-wall{
  display:grid;grid-template-columns:repeat(12,1fr);gap:3px;
  background:#eef0f3;border:1px solid #e4e6ea;border-radius:var(--c13);padding:3px;
}
.hm-cell{
  aspect-ratio:1.5/1;border-radius:2px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:1px;overflow:hidden;min-width:0;
  transition:transform .15s;
}
.hm-cell:hover{transform:scale(1.07);z-index:1}
.hm-sym{font-family:Consolas,'Roboto Mono',Menlo,monospace;font-size:0.7rem;font-weight:700;letter-spacing:0.01em;white-space:nowrap}
.hm-chg{font-family:Consolas,'Roboto Mono',Menlo,monospace;font-size:0.6rem;white-space:nowrap}
.hm-cell.light .hm-sym,.hm-cell.light .hm-chg{color:#3c4048}
.hm-cell.dark .hm-sym,.hm-cell.dark .hm-chg{color:#ffffff}
.hm-legend{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:0.75rem;color:#5b6470;flex-wrap:wrap}
.hm-legend .hm-bar{width:130px;height:8px;border-radius:4px;background:linear-gradient(90deg,#0b9d58,#e8e9ec 50%,#e0302d)}
.hm-legend .hm-time{margin-left:auto;font-family:Consolas,'Roboto Mono',Menlo,monospace}

/* === GAINER / LOSER RANK === */
.dual-rank{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.rank-panel{background:#ffffff;border:1px solid #e4e6ea;border-radius:var(--c13);overflow:hidden}
.rank-panel-head{padding:14px 18px;border-bottom:1px solid #e4e6ea;display:flex;align-items:center;gap:8px}
.rank-dot{width:8px;height:8px;border-radius:2px;flex-shrink:0}
.rank-dot.up{background:var(--up)}
.rank-dot.down{background:var(--down)}
.rank-panel-head h3{font-size:1rem}
.rank-panel-head .num{font-size:0.72rem;color:#8a9099;margin-left:auto}
.rank-row{display:grid;grid-template-columns:34px 1fr 96px 84px;gap:10px;align-items:center;padding:11px 18px;border-bottom:1px solid #f0f1f3}
.rank-row:last-child{border-bottom:none}
.rank-idx{font-size:0.8rem;color:#8a9099;font-weight:700}
.rank-name{font-size:0.88rem;font-weight:700;color:#16181d}
.rank-price{font-size:0.8rem;color:#3c4048;text-align:right}
.rank-chg{font-size:0.84rem;font-weight:700;text-align:right}

/* === SECTOR BARS === */
.sector-list{background:#ffffff;border:1px solid #e4e6ea;border-radius:var(--c13);padding:6px 20px}
.sector-row{display:grid;grid-template-columns:130px 1fr 76px;gap:20px;align-items:center;padding:13px 0;border-bottom:1px solid #f0f1f3}
.sector-row:last-child{border-bottom:none}
.sector-name{font-size:0.9rem;font-weight:700;color:#16181d}
.sector-track{height:10px;background:#eef0f3;border-radius:5px;overflow:hidden}
.sector-fill{height:100%;border-radius:5px}
.sector-val{font-size:0.84rem;font-weight:700;text-align:right}

/* === BREADTH + FLOW === */
.breadth-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.breadth-card{background:#ffffff;border:1px solid #e4e6ea;border-radius:var(--c13);padding:20px}
.breadth-num{font-size:1.8rem;font-weight:800;letter-spacing:-0.02em;line-height:1.1}
.breadth-label{font-size:0.8rem;color:#5b6470;margin-top:6px}
.flow-panel{background:#ffffff;border:1px solid #e4e6ea;border-radius:var(--c13);padding:24px;margin-top:16px;display:grid;grid-template-columns:1fr 230px;gap:24px;align-items:center}
.flow-title{font-size:0.95rem;font-weight:800;color:#16181d;margin-bottom:16px}
.flow-metric{margin-bottom:14px}
.flow-metric .flow-label{font-size:0.76rem;color:#5b6470;margin-bottom:4px}
.flow-metric .flow-val{font-size:1.15rem;font-weight:800;letter-spacing:-0.01em}
.flow-note{font-size:0.74rem;color:#8a9099;line-height:1.6}
.flow-svg{width:100%;height:auto;display:block}

/* === HOME NEWS (2x2) + SECTION MORE === */
.ng{grid-template-columns:repeat(2,1fr)}
.sm{text-align:center;margin-top:32px}

/* === PAGER TOUCH (44px) === */
.pager a,.pager span{min-width:44px;height:44px}

/* === GUIDE MINI CARDS === */
.guide-mini{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.guide-mini-card{background:#ffffff;border:1px solid #e4e6ea;border-radius:var(--c13);padding:22px;transition:border-color .2s,transform .2s}
.guide-mini-card:hover{border-color:#c9ccd2;transform:translateY(-2px)}
.guide-mini-card h3{font-size:1rem;margin-bottom:8px}
.guide-mini-card h3 a{color:#16181d}
.guide-mini-card h3 a:hover{color:#3c4048}
.guide-mini-card p{font-size:0.84rem;color:#5b6470;line-height:1.6;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.guide-mini-card time{font-size:0.74rem;color:#8a9099}

/* === RESPONSIVE === */
@media (max-width:768px){
  .heat-hero{padding:32px 0 0}
  .hm-wall{grid-template-columns:repeat(6,1fr);gap:2px;padding:2px}
  .hm-sym{font-size:0.7rem}
  .hm-chg{font-size:0.6rem}
  .dual-rank{grid-template-columns:1fr;gap:16px}
  .rank-row{grid-template-columns:30px 1fr 82px;padding:10px 14px}
  .rank-price{display:none}
  .rank-chg{font-size:0.875rem}
  .sector-row{grid-template-columns:92px 1fr 62px;gap:12px}
  .breadth-grid{grid-template-columns:1fr 1fr;gap:12px}
  .breadth-label{font-size:0.875rem}
  .flow-panel{grid-template-columns:1fr}
  .flow-label{font-size:0.875rem}
  .flow-note{font-size:0.8rem}
  .hm-legend{font-size:0.875rem}
  .ncd1{font-size:0.875rem}
  .ald1{font-size:0.875rem}
  .menu a{display:block;padding:12px 0}
  .guide-mini{grid-template-columns:1fr}
  .ng{grid-template-columns:1fr}
}