/* CMDesign 公开首页 · 颜色一律取 base.css 令牌 */
html{scroll-behavior:smooth}
body{background:var(--bg);overflow-x:hidden;line-height:1.6;font-size:16px}
.skip{position:absolute;left:-999px;top:0;background:var(--panel2);padding:8px 12px;z-index:50}
.skip:focus{left:8px}
.wrap{max-width:1320px;margin:0 auto;padding:0 40px}
.eyebrow{margin:0 0 10px;font-size:13px;letter-spacing:.14em;color:var(--heat3);text-transform:uppercase;font-weight:600}
h1,h2,h3{margin:0;letter-spacing:-.01em}
h2{font-size:clamp(26px,2.6vw,40px);line-height:1.2}
.sec-head{max-width:860px;margin-bottom:36px}
.sec-sub{color:var(--ink2);margin:14px 0 0;font-size:16px}

/* 顶栏 */
.top{position:fixed;inset:0 0 auto 0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:14px 40px;background:linear-gradient(180deg,rgba(255,255,255,.92),rgba(255,255,255,0));pointer-events:none}
.top>*{pointer-events:auto}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:17px}
.brand:hover{text-decoration:none}
.brand em{font-style:normal;font-weight:500;color:var(--muted);font-size:13px}
.topnav{display:flex;align-items:center;gap:22px;font-size:14px}
.topnav a:not(.btn){color:var(--ink2)}
.topnav a:not(.btn):hover{color:var(--heat3);text-decoration:none}

/* 首屏 */
.hero{position:relative;height:100vh;height:100svh;min-height:640px;overflow:hidden;
  background:radial-gradient(ellipse 60% 70% at 64% 50%,rgba(226,80,31,.10),transparent 70%),radial-gradient(ellipse 40% 50% at 95% 60%,rgba(27,111,209,.10),transparent 70%),var(--bg)}
.hero-stage{position:absolute;inset:0}
.hero-stage canvas{display:block;width:100%;height:100%}
.hero-fallback{position:absolute;right:6%;top:50%;transform:translateY(-50%);width:min(46vw,760px);height:min(46vw,760px);opacity:.95}
.hero.webgl .hero-fallback{display:none}
.hero-copy{--pl:max(40px,calc((100vw - 1320px)/2 + 40px));position:relative;z-index:2;max-width:calc(var(--pl) + 660px);padding:0 0 0 var(--pl);top:50%;transform:translateY(-50%);pointer-events:none}
.hero-copy a,.hero-copy button{pointer-events:auto}
.hero h1{font-size:clamp(34px,3.6vw,60px);line-height:1.12;font-weight:800}
.h1-en{display:block;font-size:.5em;font-weight:700;letter-spacing:.04em;margin-top:8px;background:var(--heat-grad);-webkit-background-clip:text;background-clip:text;color:transparent;width:max-content}
.lede{color:var(--ink2);font-size:17px;margin:20px 0 26px;max-width:560px}
.lede b{color:var(--ink);font-weight:600}
.counters{display:grid;grid-template-columns:repeat(4,auto);gap:0;margin:0 0 28px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);width:max-content;max-width:100%}
.counters>div{padding:12px 22px 12px 0;margin-right:22px;border-right:1px solid var(--line)}
.counters>div:last-child{border-right:0;margin-right:0}
.counters dt{font-size:12px;color:var(--muted);letter-spacing:.04em}
.counters dd{margin:2px 0 0;font-size:28px;font-weight:700;color:var(--ink);white-space:nowrap}
.counters dd small{font-size:13px;color:var(--muted);font-weight:500;margin-left:3px}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.btn.ghost{background:rgba(255,255,255,.6);backdrop-filter:blur(6px)}
.hero-legend{position:absolute;z-index:2;right:40px;bottom:64px;display:flex;flex-direction:column;gap:6px;font-size:12px;color:var(--ink2);background:rgba(255,255,255,.55);border:1px solid var(--line);border-radius:var(--radius-s);padding:10px 14px;backdrop-filter:blur(6px)}
.lg{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:8px;vertical-align:-1px}
.lg-a{background:conic-gradient(#FFB3C7,#F7D774,#9BE38A,#7FE0FF,#C9A2FF,#FFB3C7)}
.lg-b{background:#C7D0DB}.lg-o{background:var(--heat1);width:7px;height:7px;margin-left:1.5px;margin-right:9.5px}.lg-o2{background:var(--heat3);width:8px;height:8px;margin-left:1px;margin-right:9px}
.lg-oct{background:transparent;border:1px solid var(--cool3);border-radius:2px;transform:rotate(45deg) scale(.8)}
.hero-note{position:absolute;z-index:2;left:max(40px,calc((100vw - 1320px)/2 + 40px));bottom:22px;margin:0;font-size:12px;color:var(--muted);max-width:760px}
.hero-note .hint-drag{margin-left:10px;color:var(--dim)}
.hero-side-label{position:absolute;z-index:2;top:22%;font-size:12px;letter-spacing:.2em;padding:3px 10px;border-radius:999px;pointer-events:none}
.hero-side-label.hot{left:44%;color:var(--heat4);background:rgba(226,80,31,.25);border:1px solid rgba(255,138,61,.45)}
.hero-side-label.cold{right:4%;color:var(--cool3);background:rgba(27,111,209,.2);border:1px solid rgba(79,179,255,.4)}

/* 影片 */
.demo{padding:120px 0 80px;background:linear-gradient(180deg,var(--bg),var(--bg2))}
.player{position:relative;margin:0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--panel);aspect-ratio:16/9}
.player video,.player-fail{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;background:var(--panel)}
.player-fail-text{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);margin:0;padding:10px 18px;border-radius:999px;background:rgba(255,255,255,.75);border:1px solid var(--line2);color:var(--ink2);font-size:15px}
.player-btn{position:absolute;right:16px;bottom:16px;width:44px;height:44px;border-radius:50%;border:1px solid var(--line2);background:rgba(255,255,255,.7);color:var(--ink);cursor:pointer;font-size:14px;backdrop-filter:blur(4px)}
.player-btn:hover{border-color:var(--heat2)}
.player figcaption{position:absolute;left:16px;bottom:16px;font-size:12px;color:var(--ink2);background:rgba(255,255,255,.7);padding:4px 10px;border-radius:999px}

/* 四步叙事 */
.story{padding:100px 0 40px;background:var(--bg2)}
.story-head{margin-bottom:20px}
.story-grid{max-width:1320px;margin:0 auto;padding:0 40px;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:56px}
.story-stage{position:sticky;top:0;height:100vh;display:flex;align-items:center;justify-content:center}
.viz{position:absolute;inset:12vh 0 10vh;display:flex;flex-direction:column;align-items:center;justify-content:center;opacity:0;transform:translateY(16px) scale(.98);transition:opacity .5s,transform .5s;pointer-events:none}
.viz.on{opacity:1;transform:none}
.viz-cap{margin:14px 0 0;font-size:13px;color:var(--muted);text-align:center}
.story-dots{position:absolute;left:0;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:10px}
.story-dots i{width:6px;height:6px;border-radius:50%;background:var(--line2);transition:background .3s,transform .3s}
.story-dots i.on{background:var(--heat2);transform:scale(1.5)}
.steps{list-style:none;margin:0;padding:0}
.step{min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding:0 0 0 8px;opacity:.35;transition:opacity .4s}
.step.on{opacity:1}
.step-no{font-family:var(--mono);font-size:14px;color:var(--heat2);letter-spacing:.1em}
.step h3{font-size:clamp(24px,2.2vw,34px);margin:6px 0 14px}
.step p{color:var(--ink2);font-size:16px;margin:0 0 10px;max-width:520px}
.step b{color:var(--ink)}
.step-mini{font-size:13px!important;color:var(--muted)!important}

/* ① 周期表 */
.ptable{display:grid;grid-template-columns:repeat(18,minmax(0,1fr));gap:3px;width:min(100%,640px)}
.pt{min-width:0;overflow:hidden;aspect-ratio:1;border-radius:4px;background:var(--panel);border:1px solid var(--line);font-size:12px;display:flex;align-items:center;justify-content:center;color:var(--dim);font-family:var(--mono);transition:background .4s,color .4s,box-shadow .4s,border-color .4s}
.pt.gap{visibility:hidden}
.pt.hit{color:#fff;border-color:transparent}
.pt.hit.a{background:var(--heat2);box-shadow:0 0 14px rgba(255,138,61,.55)}
.pt.hit.b{background:var(--cool1);box-shadow:0 0 12px rgba(27,111,209,.35)}
.pt.hit.o{background:var(--heat1);color:#fff}
.pt-legend{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;font-size:12px;color:var(--ink2);margin-top:12px}
.pt-legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px;vertical-align:-1px}

/* ② 条形竞赛 */
.bars{width:min(100%,600px);display:flex;flex-direction:column;gap:8px;position:relative}
.bar{display:grid;grid-template-columns:110px 1fr 56px;align-items:center;gap:10px;font-size:13px;transition:transform .6s}
.bar .lab{color:var(--ink2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bar .trk{display:block;height:16px;background:var(--panel);border-radius:4px;overflow:hidden}
.bar .fill{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cool1),var(--cool2));border-radius:4px;transition:width 1.1s cubic-bezier(.2,.8,.2,1)}
.bar.lead .fill{background:var(--heat-grad)}
.bar.lead .lab{color:var(--heat3);font-weight:600}
.bar .val{font-family:var(--mono);color:var(--ink);text-align:right}
.bars.empty .bar .fill{background:var(--line);animation:pulse 1.6s ease-in-out infinite}
.empty-note{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:15px;color:var(--ink2)}
.empty-note span{background:rgba(255,255,255,.85);border:1px solid var(--line2);padding:8px 16px;border-radius:999px}
@keyframes pulse{0%,100%{opacity:.35}50%{opacity:.8}}

/* ③ parity */
.parity{width:min(100%,520px);aspect-ratio:1;display:block}
.scatter{width:100%;height:360px;display:block;margin-top:10px}

/* ④ 基因码 */
.viz[data-viz="3"]{flex-direction:row;gap:28px;flex-wrap:nowrap}
.gene{max-width:380px;min-width:0;display:flex;flex-direction:column;gap:6px;font-family:var(--mono)}
.gseg{display:grid;grid-template-columns:86px 1fr;gap:10px;align-items:baseline;opacity:0;transform:translateX(-8px);transition:opacity .3s,transform .3s}
.gseg.on{opacity:1;transform:none}
.gseg .gn{font-family:var(--font);font-size:12px;color:var(--muted);text-align:right}
.gseg .gv{font-size:17px;font-weight:600;word-break:break-all}
.gseg .gv::after{content:"";display:inline-block;width:8px;height:1em;background:currentColor;margin-left:2px;vertical-align:-2px;animation:blink 1s steps(2) infinite;opacity:0}
.gseg.typing .gv::after{opacity:1}
@keyframes blink{50%{opacity:0}}
.gene-full{margin-top:10px;font-size:12px;color:var(--muted);word-break:break-all;font-family:var(--mono)}
.qr-wrap{display:flex;flex-direction:column;align-items:center}
.qr{width:170px;height:170px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:0}

/* 动手试 */
.try{padding:110px 0 80px}
.try-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:20px}
.ctrl-row{display:flex;justify-content:space-between;align-items:center;margin:4px 0 10px;gap:10px}
.ctrl-label{font-size:13px;color:var(--muted);letter-spacing:.04em}
.chips{display:grid;grid-template-columns:repeat(8,1fr);gap:8px;margin-bottom:22px}
.echip{position:relative;padding:8px 0 6px;border-radius:10px;border:1px solid var(--line2);background:var(--bg2);cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:1px;transition:border-color .15s,background .15s,transform .15s}
.echip b{font-size:17px;line-height:1.2}
.echip small{font-size:12px;color:var(--muted);font-family:var(--mono)}
.echip::before{content:"";position:absolute;top:6px;right:6px;width:7px;height:7px;border-radius:50%;background:var(--c);opacity:.35}
.echip:hover{border-color:var(--ink2)}
.echip[aria-pressed="true"]{border-color:var(--c);background:color-mix(in srgb,var(--c) 16%,var(--bg2))}
.echip[aria-pressed="true"]::before{opacity:1;box-shadow:0 0 8px var(--c)}
.formula{margin:18px 0 14px;padding:10px 14px;border-radius:var(--radius-s);background:var(--bg2);border:1px solid var(--line);font-size:15px;word-break:break-all;color:var(--heat4)}
.ratio-out{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:18px}
.ratio-out>div{background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius-s);padding:10px 12px;display:flex;flex-direction:column;gap:2px}
.ratio-out span{font-size:12px}
.ratio-out b{font-size:20px}
.ratio-out b.big{font-size:24px;color:var(--heat3)}
.ratio-out small{font-size:12px;color:var(--muted)}
#phase{font-size:15px;align-self:flex-start;margin-top:2px}
.ruler{position:relative;padding-top:6px}
.ruler-band{display:grid;grid-template-columns:16fr 32fr 12fr;height:34px;border-radius:8px;overflow:hidden;font-size:12px}
.ruler-band .z{display:flex;align-items:center;justify-content:center;color:var(--ink)}
.z1{background:linear-gradient(90deg,rgba(27,111,209,.25),rgba(79,179,255,.35))}
.z2{background:linear-gradient(90deg,rgba(226,80,31,.35),rgba(255,138,61,.45))}
.z3{background:rgba(95,107,123,.35)}
.ruler-ptr{position:absolute;top:0;left:0;height:44px;width:0;transition:left .7s cubic-bezier(.3,1.4,.4,1)}
.ruler-ptr i{position:absolute;left:-1.5px;top:0;width:3px;height:44px;background:var(--heat4);border-radius:2px;box-shadow:0 0 10px var(--heat3)}
.ruler-ptr i::before{content:"";position:absolute;left:-5px;top:-6px;border:6.5px solid transparent;border-top-color:var(--heat4)}
.ruler-ticks{position:relative;height:18px;margin-top:4px;font-size:12px;color:var(--muted);font-family:var(--mono)}
.ruler-ticks span{position:absolute;transform:translateX(-50%)}
.ruler-ticks span:nth-child(1){left:0;transform:none}.ruler-ticks span:nth-child(2){left:26.67%}.ruler-ticks span:nth-child(3){left:50%}.ruler-ticks span:nth-child(4){left:80%}.ruler-ticks span:nth-child(5){left:100%;transform:translateX(-100%)}
.try-cell{display:flex;flex-direction:column;align-items:center;justify-content:center}
#miniCell{width:100%;max-width:440px;aspect-ratio:1}
.mini-legend{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;font-size:12px;color:var(--ink2);min-height:20px}
.mini-legend i{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:5px}
.screen{margin-top:20px}
.screen-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}
.screen-head h3{font-size:18px}
.screen-head p{margin:4px 0 12px;font-size:13px}
.screen-stat{text-align:right;display:flex;flex-direction:column}
.screen-stat b{font-size:28px;color:var(--heat3)}

/* 出处 */
.sources{padding:90px 0 70px;background:var(--bg2);border-top:1px solid var(--line)}
.src-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(360px,1fr));gap:12px;counter-reset:s}
.src-list li{counter-increment:s;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-s);padding:14px 16px 14px 52px;position:relative;font-size:14px}
.src-list li::before{content:counter(s,decimal-leading-zero);position:absolute;left:16px;top:14px;font-family:var(--mono);color:var(--heat2)}
.src-list .sl{color:var(--ink);font-weight:600;display:block}
.src-list .sr{color:var(--ink2);display:block}
.src-list a{font-family:var(--mono);font-size:12px;word-break:break-all}

/* 页脚 */
.foot{padding:36px 0 44px;border-top:1px solid var(--line);background:var(--bg)}
.foot p{margin:0}
.foot-brand{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;margin-bottom:10px!important}
.contact{color:var(--ink2);font-size:14px;line-height:1.9;word-break:break-all}

/* 平板与手机 */
@media (max-width:1100px){
  .hero-copy{max-width:calc(var(--pl) + 540px)}
  .counters{grid-template-columns:repeat(2,auto)}
  .counters>div:nth-child(2){border-right:0;margin-right:0}
  .story-grid{gap:28px}
  .chips{grid-template-columns:repeat(6,1fr)}
}
@media (max-width:760px){
  body{font-size:15px}
  .wrap{padding:0 16px}
  .top{padding:10px 16px}
  .brand em,.topnav a:not(.btn){display:none}
  .hero{height:auto;min-height:100svh;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:70px}
  .hero-stage{height:50svh;bottom:auto}
  .hero-fallback{right:50%;transform:translate(50%,-50%);top:26svh;width:84vw;height:84vw}
  .hero-copy{top:auto;transform:none;padding:48svh 16px 0;max-width:none}
  .hero h1{font-size:32px}
  .lede{font-size:15px;margin:14px 0 18px}
  .counters{grid-template-columns:repeat(2,1fr);width:100%}
  .counters>div{padding:10px 8px 10px 0;margin-right:8px}
  .counters dd{font-size:22px}
  .hero-legend{display:none}
  .hero-note{left:16px;right:16px;bottom:16px}
  .hero-note .hint-drag{display:none}
  .hero-side-label{top:10svh;font-size:12px}
  .hero-side-label.hot{left:16px}.hero-side-label.cold{right:16px}
  .demo{padding:70px 0 50px}
  .story{padding:70px 0 20px}
  .story-grid{grid-template-columns:1fr;padding:0 16px;gap:0}
  .story-stage{height:56svh;top:48px;z-index:2;background:var(--bg2);border-bottom:1px solid var(--line)}
  .viz{inset:8px 0 8px}
  .story-dots{display:none}
  .step{min-height:64svh;justify-content:flex-end;padding:0 0 4svh}
  .ptable{gap:2px}
  .pt{font-size:12px;border-radius:2px;letter-spacing:-.06em}
  .bar{grid-template-columns:88px 1fr 46px;font-size:12px}
  .parity{width:min(100%,46svh)}
  .viz[data-viz="3"]{flex-direction:row;gap:12px;align-items:center}
  .gene{gap:3px;max-width:none;flex:1}
  .gseg{grid-template-columns:58px 1fr;gap:6px}
  .gseg .gv{font-size:13px}
  .gene-full{font-size:12px;margin-top:4px}
  .qr{width:96px;height:96px}
  .qr-wrap .viz-cap{font-size:12px;max-width:104px;margin-top:6px}
  .try{padding:70px 0 50px}
  .try-grid{grid-template-columns:1fr}
  .chips{grid-template-columns:repeat(4,1fr)}
  .ratio-out{grid-template-columns:repeat(2,1fr)}
  .screen-head{flex-direction:column}
  .screen-stat{text-align:left}
  .scatter{height:260px}
  .src-list{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

sub{font-size:max(12px,.72em)}
.top{transition:background .25s,border-color .25s;border-bottom:1px solid transparent}
.top.scrolled{background:rgba(255,255,255,.9);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom-color:var(--line)}