/* ═══════════════ LLM·TRACE — 科技感深空主题 ═══════════════ */
:root{
  --bg:#04060d; --bg2:#070b16; --panel:rgba(13,19,36,.72); --line:rgba(120,160,255,.14);
  --txt:#dbe4f5; --dim:#7d8aa8; --faint:#4a5470;
  --cyan:#33e0ff; --green:#2ee6a6; --violet:#a88bff; --amber:#ffc24c;
  --grad:linear-gradient(92deg,#2ee6a6 0%,#33e0ff 45%,#b877ff 100%);
  --mono:ui-monospace,"SF Mono","Cascadia Code",Menlo,Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--txt);font-family:var(--sans);overflow-x:hidden;line-height:1.6}
b{color:#fff}
::selection{background:rgba(51,224,255,.3)}

/* 扫描线 + 噪点氛围 */
.scanline{position:fixed;inset:0;pointer-events:none;z-index:99;
  background:repeating-linear-gradient(0deg,transparent 0 2px,rgba(0,0,0,.12) 2px 4px);mix-blend-mode:overlay;opacity:.35}

/* ═══ 导航 ═══ */
#nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;gap:28px;
  padding:14px 28px;backdrop-filter:blur(14px);background:rgba(4,6,13,.62);border-bottom:1px solid var(--line)}
.nav-logo{font-family:var(--mono);font-weight:800;font-size:18px;letter-spacing:.12em;color:#fff;white-space:nowrap}
.nav-logo span{color:var(--cyan)}
.nav-links{display:flex;gap:4px;flex:1;overflow-x:auto;scrollbar-width:none}
.nav-links::-webkit-scrollbar{display:none}
.nav-links a{color:var(--dim);text-decoration:none;font-size:13px;padding:6px 12px;border-radius:6px;white-space:nowrap;transition:.2s}
.nav-links a:hover{color:#fff;background:rgba(51,224,255,.08)}
.nav-links a.act{color:var(--cyan);background:rgba(51,224,255,.1)}
.nav-tag{font-family:var(--mono);font-size:11px;color:var(--faint);letter-spacing:.08em;white-space:nowrap}
.nav-tag span{color:var(--green)}

/* ═══ HERO ═══ */
#hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;overflow:hidden;
  background:radial-gradient(1200px 700px at 70% -10%,rgba(51,224,255,.09),transparent 60%),
             radial-gradient(900px 600px at 15% 110%,rgba(184,119,255,.08),transparent 60%),var(--bg)}
#neural{position:absolute;inset:0;width:100%;height:100%}
.hero-glow{position:absolute;inset:0;background:
  conic-gradient(from 200deg at 50% 120%,transparent 60%,rgba(51,224,255,.05),transparent 80%);pointer-events:none}
.hero-inner{position:relative;z-index:2;text-align:center;padding:120px 24px 60px;max-width:960px}
.hero-badge{display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:.28em;color:var(--cyan);
  border:1px solid rgba(51,224,255,.35);padding:8px 18px;border-radius:99px;margin-bottom:34px;
  background:rgba(51,224,255,.05);box-shadow:0 0 24px rgba(51,224,255,.18) inset,0 0 18px rgba(51,224,255,.1)}
#hero h1{font-size:clamp(44px,7.5vw,88px);font-weight:900;letter-spacing:.02em;line-height:1.12;color:#fff;
  text-shadow:0 0 60px rgba(51,224,255,.25)}
#hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 24px rgba(51,224,255,.35))}
.hero-sub{margin:26px auto 0;max-width:640px;color:var(--dim);font-size:16px}
.hero-sub b{color:var(--cyan);font-family:var(--mono)}
.hero-stats{display:flex;justify-content:center;gap:clamp(20px,5vw,64px);margin-top:56px;flex-wrap:wrap}
.hstat-num{font-family:var(--mono);font-size:clamp(30px,4vw,44px);font-weight:800;color:#fff;
  text-shadow:0 0 28px rgba(51,224,255,.18)}
.hstat-label{font-size:12px;color:var(--faint);letter-spacing:.2em;margin-top:6px}
.hero-scroll{margin-top:70px;color:var(--faint);font-family:var(--mono);font-size:10px;letter-spacing:.4em;
  display:flex;flex-direction:column;align-items:center;gap:10px}
.hero-scroll span{width:1px;height:44px;background:linear-gradient(var(--cyan),transparent);animation:drip 1.8s infinite}
@keyframes drip{0%{transform:scaleY(0);transform-origin:top}55%{transform:scaleY(1);transform-origin:top}56%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ═══ 章节骨架 ═══ */
main{max-width:1280px;margin:0 auto;padding:0 24px}
.sec{padding:110px 0 30px}
.sec-head{display:flex;gap:26px;align-items:flex-start;margin-bottom:34px}
.sec-no{font-family:var(--mono);font-size:15px;color:var(--cyan);border:1px solid rgba(51,224,255,.4);
  padding:8px 12px;border-radius:8px;background:rgba(51,224,255,.06);letter-spacing:.1em;flex-shrink:0;margin-top:4px;
  box-shadow:0 0 16px rgba(51,224,255,.12)}
.sec-head h2{font-size:clamp(26px,3.4vw,38px);color:#fff;font-weight:800;letter-spacing:.02em}
.sec-desc{color:var(--dim);font-size:14.5px;max-width:820px;margin-top:8px}
.sec-desc b{color:var(--txt)}
.subhead{font-family:var(--mono);font-size:13px;letter-spacing:.3em;color:var(--cyan);margin:64px 0 22px}
.footnote{color:var(--faint);font-size:12.5px;margin-top:14px}

/* 入场动画 */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ═══ 面板 & 图表 ═══ */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px;
  backdrop-filter:blur(8px);position:relative;overflow:hidden}
.panel::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(51,224,255,.5),transparent)}
.panel-title{font-size:13.5px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.04em}
.panel-title .unit{color:var(--faint);font-weight:400;font-size:12px;font-family:var(--mono)}
.chart{width:100%}
.chart-wide{min-height:460px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:900px){.grid-2{grid-template-columns:1fr}}

/* ═══ 时间线 ═══ */
.tl-controls{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;margin-bottom:14px}
.tl-zoom{display:flex;gap:6px;flex-wrap:wrap}
.tl-zoom button{font-family:var(--mono);font-size:12px;color:var(--dim);background:rgba(13,19,36,.8);
  border:1px solid var(--line);padding:7px 16px;border-radius:7px;cursor:pointer;transition:.2s;letter-spacing:.05em}
.tl-zoom button:hover{color:#fff;border-color:rgba(51,224,255,.5)}
.tl-zoom button.on{color:var(--cyan);border-color:rgba(51,224,255,.6);background:rgba(51,224,255,.1);
  box-shadow:0 0 14px rgba(51,224,255,.15)}
.tl-filter{display:flex;gap:8px}
.chip{font-size:12px;color:var(--dim);border:1px solid var(--line);padding:6px 14px;border-radius:99px;cursor:pointer;user-select:none;transition:.2s}
.chip.on{color:var(--violet);border-color:rgba(168,139,255,.55);background:rgba(168,139,255,.08)}
.tl-wrap{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;position:relative;
  backdrop-filter:blur(8px)}
.tl-svg{display:block;width:100%;cursor:grab;touch-action:pan-y}
.tl-svg.dragging{cursor:grabbing}
.tl-tip{position:absolute;z-index:20;pointer-events:none;min-width:250px;max-width:320px;
  background:rgba(7,11,22,.96);border:1px solid rgba(51,224,255,.35);border-radius:12px;padding:14px 16px;
  box-shadow:0 10px 40px rgba(0,0,0,.6),0 0 20px rgba(51,224,255,.08);opacity:0;transform:translateY(6px);
  transition:opacity .15s,transform .15s;backdrop-filter:blur(10px)}
.tl-tip.show{opacity:1;transform:none}
.tl-tip .tt-head{display:flex;justify-content:space-between;gap:12px;align-items:baseline;margin-bottom:6px}
.tl-tip .tt-name{font-weight:800;color:#fff;font-size:14.5px}
.tl-tip .tt-date{font-family:var(--mono);font-size:11.5px;color:var(--cyan);white-space:nowrap}
.tl-tip .tt-vendor{font-size:11px;letter-spacing:.15em;margin-bottom:8px}
.tl-tip .tt-x{font-size:12.5px;color:var(--dim);line-height:1.55;margin-bottom:8px}
.tl-tip .tt-meta{display:flex;flex-wrap:wrap;gap:6px}
.tl-tip .tt-tag{font-family:var(--mono);font-size:10.5px;padding:3px 8px;border-radius:5px;
  background:rgba(51,224,255,.08);border:1px solid rgba(51,224,255,.2);color:var(--cyan)}
.tl-tip .tt-tag.warn{background:rgba(255,194,76,.08);border-color:rgba(255,194,76,.3);color:var(--amber)}
.tl-tip .tt-tag.good{background:rgba(46,230,166,.08);border-color:rgba(46,230,166,.3);color:var(--green)}
.tl-legend{display:flex;gap:22px;flex-wrap:wrap;align-items:center;margin-top:14px;color:var(--dim);font-size:12.5px}
.tl-legend .dot{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:7px;vertical-align:-1px}
.dot-flag{background:var(--cyan);box-shadow:0 0 8px var(--cyan)}
.dot-mid{background:#5c6a8c}
.dot-open{background:transparent;border:2px solid var(--green)}
.dot-future{background:transparent;border:2px dashed var(--violet)}
.legend-note{color:var(--faint);margin-left:auto}

/* ═══ 发布节奏 / 热度图 ═══ */
.bar-vlabel{font-family:var(--mono);font-size:11px;fill:var(--dim)}
.bar-val{font-family:var(--mono);font-size:11px;fill:#fff}
.axis-tick{font-family:var(--mono);font-size:10px;fill:var(--faint)}

/* ═══ 性能 tabs ═══ */
.perf-tabs{display:flex;gap:10px;margin-bottom:18px;flex-wrap:wrap}
.ptab{flex:1;min-width:180px;background:rgba(13,19,36,.7);border:1px solid var(--line);border-radius:10px;
  padding:12px 16px;color:var(--dim);cursor:pointer;text-align:left;transition:.2s;font-size:14.5px;font-weight:700;
  display:flex;flex-direction:column;gap:3px}
.ptab small{font-weight:400;font-size:11.5px;color:var(--faint)}
.ptab:hover{border-color:rgba(51,224,255,.45)}
.ptab.on{color:#fff;border-color:rgba(51,224,255,.65);background:rgba(51,224,255,.1);box-shadow:0 0 18px rgba(51,224,255,.12)}
.ptab.on small{color:var(--cyan)}

/* ═══ 预测实验室 ═══ */
.pred-note{margin-bottom:26px}
.pred-formula{font-family:var(--mono);font-size:15px;color:#fff;background:rgba(13,19,36,.8);
  border:1px solid var(--line);border-left:3px solid var(--violet);border-radius:10px;padding:16px 22px;
  display:inline-block}
.pred-formula span{display:block;margin-top:6px;font-size:11.5px;color:var(--faint)}
.pred-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.pred-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px;position:relative;
  overflow:hidden;transition:transform .25s,border-color .25s}
.pred-card:hover{transform:translateY(-3px);border-color:rgba(168,139,255,.35)}
.pc-dot{width:7px;height:7px;border-radius:50%;display:inline-block;flex-shrink:0}
.pc-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;gap:8px}
.pc-name{font-size:12px;letter-spacing:.18em;color:var(--dim);font-weight:700;display:flex;align-items:center;gap:7px}
.pc-label{display:block;font-size:10px;letter-spacing:.18em;color:var(--faint);margin-bottom:3px}
.pc-label-next{color:var(--violet);opacity:.85}
.pc-last{background:rgba(120,160,255,.05);border:1px solid rgba(120,160,255,.1);border-radius:9px;padding:9px 12px}
.pc-last-name{display:block;font-size:13.5px;font-weight:700;color:var(--txt)}
.pc-last-date{display:block;font-family:var(--mono);font-size:11px;color:var(--faint);margin-top:2px}
.pc-split{display:flex;align-items:center;gap:10px;margin:10px 0;color:var(--violet);
  font-size:10px;letter-spacing:.14em;opacity:.85;white-space:nowrap}
.pc-split::before,.pc-split::after{content:'';flex:1;border-top:1px dashed rgba(168,139,255,.35)}
.pc-next-time{font-size:19px;font-weight:800;color:#fff;margin:4px 0 3px}
.pc-next-time em{font-style:normal;font-size:11.5px;font-weight:400;font-family:var(--mono);color:var(--dim);margin-left:8px}
.pc-window{font-family:var(--mono);font-size:12px;color:var(--violet);margin-bottom:12px;opacity:.9}
.pc-bar{height:5px;border-radius:99px;background:rgba(120,160,255,.1);overflow:hidden;margin-bottom:14px}
.pc-bar i{display:block;height:100%;border-radius:99px;
  background:linear-gradient(90deg,rgba(168,139,255,.35),#a88bff);transition:width 1.2s cubic-bezier(.2,.8,.2,1)}
.pred-card .pc-meta{font-size:12px;color:var(--dim);line-height:1.6}
.pred-card .pc-meta b{font-family:var(--mono)}
.pc-status{font-size:10.5px;font-family:var(--mono);padding:3px 9px;border-radius:5px;letter-spacing:.06em;white-space:nowrap}
.pc-status.over{background:rgba(168,139,255,.08);color:rgba(190,164,255,.95);border:1px solid rgba(168,139,255,.28)}
.pc-status.soon{background:rgba(255,194,76,.07);color:rgba(255,204,110,.95);border:1px solid rgba(255,194,76,.24)}
.pc-status.ok{background:rgba(46,230,166,.07);color:rgba(110,238,190,.9);border:1px solid rgba(46,230,166,.22)}
.intel-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px}
.intel-card{background:rgba(13,19,36,.55);border:1px solid var(--line);border-radius:12px;padding:18px;transition:.25s}
.intel-card:hover{border-color:rgba(168,139,255,.3)}
.intel-top{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap}
.intel-model{font-weight:800;color:#fff;font-size:15px}
.conf{font-family:var(--mono);font-size:10px;padding:3px 10px;border-radius:99px;letter-spacing:.1em;white-space:nowrap}
.conf.high{background:rgba(46,230,166,.07);color:rgba(110,238,190,.9);border:1px solid rgba(46,230,166,.25)}
.conf.mid{background:rgba(255,194,76,.06);color:rgba(255,204,110,.9);border:1px solid rgba(255,194,76,.22)}
.conf.low{background:rgba(168,139,255,.07);color:rgba(190,164,255,.9);border:1px solid rgba(168,139,255,.25)}
.intel-win{font-family:var(--mono);font-size:11.5px;color:var(--violet);margin-bottom:8px;opacity:.9}
.intel-note{font-size:12.5px;color:var(--dim);line-height:1.65}
.intel-vendor{font-size:11px;letter-spacing:.15em;color:var(--faint);margin-bottom:6px;display:flex;align-items:center;gap:7px}

/* ═══ 趋势 ═══ */
.trend-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.trend-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:26px;transition:.3s}
.trend-card:hover{transform:translateY(-4px);border-color:rgba(51,224,255,.35);box-shadow:0 14px 44px rgba(0,0,0,.4)}
.trend-icon{font-size:26px;margin-bottom:14px}
.trend-card h3{color:#fff;font-size:16.5px;margin-bottom:10px}
.trend-card p{color:var(--dim);font-size:13px;line-height:1.75}

/* ═══ FOOTER ═══ */
footer{margin-top:120px;border-top:1px solid var(--line);background:linear-gradient(rgba(7,11,22,.9),var(--bg))}
.foot-inner{max-width:1280px;margin:0 auto;padding:56px 24px 30px;display:grid;grid-template-columns:1.1fr 1.3fr 1fr;gap:40px}
@media(max-width:900px){.foot-inner{grid-template-columns:1fr}}
.foot-col p{color:var(--dim);font-size:12.5px;margin-top:14px;line-height:1.75}
.foot-h{font-family:var(--mono);font-size:11px;letter-spacing:.25em;color:var(--cyan);margin-bottom:4px}
.foot-col code{font-family:var(--mono);font-size:11px;color:var(--green);background:rgba(46,230,166,.08);
  padding:2px 7px;border-radius:5px;border:1px solid rgba(46,230,166,.2)}
.foot-bottom{border-top:1px solid var(--line);padding:18px 24px;text-align:center;font-family:var(--mono);
  font-size:10px;letter-spacing:.3em;color:var(--faint)}

/* SVG 通用 */
.gridline{stroke:rgba(120,160,255,.09);stroke-width:1}
.refline{stroke:rgba(255,194,76,.55);stroke-width:1;stroke-dasharray:5 5}
.reflabel{font-family:var(--mono);font-size:10px;fill:var(--amber)}
@media(max-width:720px){
  .sec{padding-top:80px}
  .sec-head{flex-direction:column;gap:14px}
  .legend-note{margin-left:0;width:100%}
  .br-desktop{display:none}
}