/* 算力产业战略研究 V3 · 全新版式系统（沿用深色基调，结构化布局） */
:root{
  --bg:#071522; --bg2:#0b2238; --paper:#f2f0e8; --gold:#d8ad4b; --cyan:#22d1d7;
  --text:#eaf1f5; --muted:#8193a4; --hair:rgba(255,255,255,.13);
}
*{box-sizing:border-box}
html,body{width:100%;height:100%;margin:0;overflow:hidden;background:#02070c;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  -webkit-font-smoothing:antialiased}
button{font:inherit}
#app{width:100%;height:100%;position:relative;color:#fff}

header{position:absolute;z-index:30;top:0;left:0;right:0;height:64px;padding:0 3vw;display:flex;align-items:center;
  border-bottom:1px solid var(--hair);background:rgba(3,11,19,.72);backdrop-filter:blur(16px)}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-size:9px;font-weight:700;line-height:1.25;letter-spacing:.13em}
.brand i{width:18px;height:18px;border:1px solid var(--cyan);transform:rotate(45deg);position:relative;flex:0 0 auto}
.brand i:after{content:"";position:absolute;inset:4px;background:var(--gold)}
.module-name{position:absolute;left:50%;transform:translateX(-50%);font-size:10px;letter-spacing:.18em;color:#8da1b1;white-space:nowrap}
.tools{margin-left:auto;display:flex;gap:6px}
.tools button{width:34px;height:34px;border:1px solid var(--hair);background:transparent;color:#fff;cursor:pointer}
.tools button:hover{border-color:var(--gold);color:var(--gold)}

#viewport{position:absolute;inset:0;overflow:hidden}
#track{display:flex;height:100%;will-change:transform;transition:transform .68s cubic-bezier(.72,0,.18,1)}

footer{position:absolute;z-index:30;bottom:0;left:0;right:0;height:56px;padding:0 3vw;display:flex;align-items:center;gap:16px;
  border-top:1px solid var(--hair);background:rgba(3,11,19,.72);backdrop-filter:blur(16px)}
footer button{width:34px;height:34px;border:1px solid var(--hair);background:transparent;color:#fff;cursor:pointer;font-size:15px}
footer button:disabled{opacity:.3;cursor:default}
footer button:hover:not(:disabled){border-color:var(--gold);color:var(--gold)}
.progress{flex:1;height:2px;background:rgba(255,255,255,.14)}
.progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--gold));transition:width .4s}
footer span{font-size:11px;letter-spacing:.14em;color:#8da1b1}
footer b{color:var(--gold)}

.hint{position:absolute;z-index:29;bottom:64px;left:50%;transform:translateX(-50%);font-size:10px;letter-spacing:.18em;color:#7d90a0;
  border:1px solid var(--hair);padding:7px 14px;background:rgba(3,11,19,.6);transition:opacity 1s;pointer-events:none}

/* ===== slides ===== */
.slide{width:100vw;height:100%;flex:0 0 100vw;padding:82px 5.5vw 68px;position:relative;overflow:hidden;
  background:linear-gradient(135deg,#06131f,#0d2840);color:var(--text);display:flex;flex-direction:column}
.slide:after{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:64px 64px}
.slide.light{color:#071522;background:#f2f0e8}
.slide.light:after{background-image:linear-gradient(rgba(7,21,34,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(7,21,34,.03) 1px,transparent 1px)}
.slide>*{position:relative;z-index:2}
.page-tag{font-size:10px;color:var(--cyan);letter-spacing:.16em;font-weight:700;text-transform:uppercase}
.slide.light .page-tag{color:#0a8f96}

.head{flex:0 0 auto;margin-bottom:12px}
.slide h1{font-size:clamp(19px,2.3vw,32px);font-weight:600;line-height:1.28;letter-spacing:-.01em;margin:8px 0 7px;max-width:1200px}
.head .sub{margin:0;font-size:clamp(11.5px,.98vw,14.5px);line-height:1.6;color:#a9b8c3;max-width:1180px}
.slide.light .sub{color:#52606a}

/* 指标卡 */
.cards{display:flex;flex-wrap:wrap;gap:9px;margin-top:11px}
.cards article{min-width:140px;flex:1;max-width:300px;padding:9px 13px;background:rgba(255,255,255,.05);border-left:3px solid var(--cyan)}
.slide.light .cards article{background:rgba(7,21,34,.045)}
.cards strong{display:block;color:var(--gold);font-size:clamp(14px,1.45vw,20px);font-weight:700;line-height:1.25}
.cards span{display:block;margin-top:3px;color:#9db0bf;font-size:10.5px;line-height:1.45}
.slide.light .cards span{color:#5c6a74}

/* 主体布局 */
.body{flex:1 1 auto;min-height:0;display:grid;gap:20px}
.lay-text .body,.lay-table .body{grid-template-columns:1fr}
.lay-chart .body{grid-template-columns:minmax(0,1.15fr) minmax(300px,.85fr)}
.lay-both .body{grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr)}
.panes-copy{min-height:0;overflow:hidden}
.lay-chart .panes-copy,.lay-both .panes-copy{overflow-y:auto;padding-right:8px;
  scrollbar-width:thin;scrollbar-color:rgba(216,173,75,.45) transparent}
.lay-chart .panes-copy::-webkit-scrollbar,.lay-both .panes-copy::-webkit-scrollbar{width:5px}
.lay-chart .panes-copy::-webkit-scrollbar-thumb,.lay-both .panes-copy::-webkit-scrollbar-thumb{background:rgba(216,173,75,.45);border-radius:3px}
.panes-chart{min-height:0;display:flex;flex-direction:column}
.lay-text .panes-copy{columns:2;column-gap:34px}
.lay-table .panes-copy{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.8fr);gap:24px;align-items:start}
.lay-both .panes-copy{display:flex;flex-direction:column}

/* 内容块 */
.blk{break-inside:avoid;margin:0 0 13px;padding-bottom:11px;border-bottom:1px dashed rgba(255,255,255,.09)}
.slide.light .blk{border-bottom-color:rgba(7,21,34,.1)}
.blk:last-child{border-bottom:none;margin-bottom:0}
.blk h3{margin:0 0 6px;font-size:12.5px;font-weight:700;color:var(--gold);letter-spacing:.02em}
.slide.light .blk h3{color:#96701d}
.blk p{margin:0 0 6px;font-size:12.2px;line-height:1.66;color:#aebcc7}
.slide.light .blk p{color:#4d5b66}
.blk p:last-child{margin-bottom:0}

/* 表格 */
.tablewrap{overflow:hidden;border:1px solid var(--hair);background:rgba(255,255,255,.03);margin-bottom:12px}
.slide.light .tablewrap{border-color:rgba(7,21,34,.14);background:#fff}
table.dtable{width:100%;border-collapse:collapse;font-size:11.4px;line-height:1.5}
table.dtable th{background:rgba(216,173,75,.14);color:var(--gold);text-align:left;font-weight:700;
  padding:7px 10px;border-bottom:1px solid var(--hair);font-size:10.8px;letter-spacing:.03em}
.slide.light table.dtable th{background:rgba(216,173,75,.16);color:#84620f}
table.dtable td{padding:6px 10px;border-bottom:1px solid rgba(255,255,255,.07);color:#b7c4cf;vertical-align:top}
.slide.light table.dtable td{border-bottom-color:rgba(7,21,34,.08);color:#46555f}
table.dtable tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.slide.light table.dtable tbody tr:nth-child(even){background:rgba(7,21,34,.03)}
table.dtable td:first-child{color:var(--cyan);font-weight:600}
.slide.light table.dtable td:first-child{color:#0a8f96}

/* 图表 */
.chartwrap{flex:1;min-height:0;display:flex;flex-direction:column;border:1px solid var(--hair);background:rgba(255,255,255,.028);padding:10px 12px 8px}
.slide.light .chartwrap{border-color:rgba(7,21,34,.13);background:#fff}
.chart{flex:1;min-height:0}
.chart-src{flex:0 0 auto;font-size:9.5px;color:#7d90a0;padding-top:6px;border-top:1px dotted rgba(255,255,255,.1);line-height:1.45}
.slide.light .chart-src{color:#7a868f;border-top-color:rgba(7,21,34,.1)}

/* 底部研判 + 来源 */
.insight{flex:0 0 auto;margin-top:10px;border:1px solid rgba(216,173,75,.4);background:rgba(216,173,75,.07);padding:10px 15px;display:flex;gap:12px;align-items:flex-start}
.slide.light .insight{background:rgba(216,173,75,.1);border-color:rgba(154,116,32,.4)}
.insight em{flex:0 0 auto;font-style:normal;font-size:9px;font-weight:700;letter-spacing:.14em;color:#071522;background:var(--gold);padding:4px 8px;margin-top:2px;white-space:nowrap}
.insight p{margin:0;font-size:12px;line-height:1.6;color:#d9cfae}
.slide.light .insight p{color:#5d4f22}
.srcline{flex:0 0 auto;margin-top:7px;font-size:9.5px;color:#6e8292;letter-spacing:.02em;line-height:1.5}
.slide.light .srcline{color:#8a948c}

/* 封面 */
.cover{padding:0;background:#020911}
.cover-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.66}
.cover:before{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,rgba(1,7,13,.96),rgba(1,7,13,.62) 55%,rgba(1,7,13,.1)),linear-gradient(0deg,#030a11,transparent 52%)}
.cover-inner{position:absolute;z-index:3;left:8vw;top:18vh;width:64vw}
.cover .page-tag{letter-spacing:.22em}
.cover h1{font-size:clamp(40px,5.6vw,86px);font-weight:300;line-height:1.06;letter-spacing:-.03em;margin:20px 0 22px}
.cover h1 strong{color:var(--gold);font-weight:700}
.cover p{font-size:clamp(13px,1.35vw,20px);line-height:1.75;color:#c2d0da;max-width:680px;margin:0}
.cover-stats{display:flex;gap:42px;margin-top:42px}
.cover-stats b{display:block;font-size:28px;color:var(--gold);font-weight:600}
.cover-stats span{display:block;font-size:10px;color:#8da0af;letter-spacing:.08em;margin-top:5px}
.cover-src{margin-top:44px;font-size:10.5px;color:#728494;letter-spacing:.06em}

/* 免责声明页 */
.disclaimer{justify-content:flex-start}
.disclaimer h1{margin-top:14px}
.disc{margin-top:26px;max-width:980px;font-size:13.5px;line-height:2.05;color:#a9b8c3;text-align:justify}
.slide.light .disc{color:#4d5b66}

/* 总览抽屉 */
#overview{position:absolute;z-index:40;top:0;right:0;bottom:0;width:min(460px,92vw);transform:translateX(102%);transition:transform .45s cubic-bezier(.72,0,.18,1);
  background:#04101b;border-left:1px solid var(--hair);display:flex;flex-direction:column;padding:22px}
#overview.open{transform:none}
#scrim{position:absolute;z-index:35;inset:0;background:rgba(2,8,14,.66);opacity:0;pointer-events:none;transition:opacity .4s}
#scrim.open{opacity:1;pointer-events:auto}
.overview-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.overview-head small{font-size:9px;letter-spacing:.2em;color:var(--cyan)}
.overview-head h2{margin:6px 0 0;font-size:22px;font-weight:300;letter-spacing:-.01em}
#closeOverview{width:34px;height:34px;border:1px solid var(--hair);background:transparent;color:#fff;cursor:pointer;font-size:15px}
#search{margin:16px 0 10px;width:100%;padding:11px 13px;background:rgba(255,255,255,.05);border:1px solid var(--hair);color:#fff;font-size:12.5px;outline:none}
#search:focus{border-color:var(--gold)}
#thumbs{flex:1;overflow:auto;display:flex;flex-direction:column;gap:7px;scrollbar-width:thin;scrollbar-color:#274158 transparent}
.thumb{display:flex;align-items:flex-start;gap:10px;text-align:left;border:1px solid var(--hair);background:transparent;color:inherit;cursor:pointer;padding:11px 13px;transition:border-color .2s}
.thumb:hover{border-color:var(--gold)}
.thumb b{font-size:9px;letter-spacing:.1em;color:var(--cyan);flex:0 0 52px;padding-top:2px}
.thumb h3{font-size:12.5px;font-weight:500;margin:0;color:#dbe6ee;line-height:1.45}
.thumb small{display:block;font-size:9px;color:#7d90a0;margin-top:4px}

/* 窄屏兜底 */
@media (max-width:900px){
  .slide{padding:76px 5vw 64px}
  .lay-chart .body,.lay-both .body{grid-template-columns:1fr;grid-template-rows:minmax(0,1fr) minmax(190px,.85fr)}
  .lay-chart .panes-copy,.lay-both .panes-copy{max-height:42%;overflow:hidden}
  .lay-text .panes-copy{columns:1}
  .lay-table .panes-copy{grid-template-columns:1fr}
  .cover-inner{width:86vw;left:6vw;top:15vh}
}

/* 图表页左栏信息密度收紧（避免 900px 高度下溢出） */
.lay-chart .cards,.lay-both .cards{margin-top:8px;gap:7px}
.lay-chart .cards article,.lay-both .cards article{padding:7px 11px;min-width:120px}
.lay-chart .cards strong,.lay-both .cards strong{font-size:clamp(13px,1.25vw,17px)}
.lay-chart .blk,.lay-both .blk{margin-bottom:10px;padding-bottom:9px}
.lay-chart .blk p,.lay-both .blk p{font-size:11.8px;line-height:1.56;margin-bottom:5px}
@media (max-height:820px){
  .slide{padding-top:76px;padding-bottom:62px}
  .head{margin-bottom:8px}
  .slide h1{font-size:clamp(18px,2.1vw,28px);margin:6px 0 6px}
  .head .sub{font-size:12px;line-height:1.5}
  .cards{margin-top:8px;gap:7px}
  .cards article{padding:7px 11px}
  .cards strong{font-size:clamp(13px,1.3vw,17px)}
  .cards span{font-size:10px;margin-top:2px}
  .blk{margin-bottom:10px;padding-bottom:9px}
  .blk h3{font-size:12px;margin-bottom:5px}
  .blk p{font-size:11.6px;line-height:1.55;margin-bottom:5px}
  table.dtable{font-size:10.8px}
  table.dtable td{padding:5px 9px}
  table.dtable th{padding:6px 9px}
  .insight{padding:8px 13px;margin-top:8px}
  .insight p{font-size:11.3px;line-height:1.55}
  .srcline{margin-top:5px}
}