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#algorithm-gates .tide-duo-split {min-width:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;align-items:stretch}
#algorithm-gates .tide-duo-panel {min-width:0;padding:0 24px 24px;border:1px solid #dbe4ee;border-radius:8px;background:#fff}
#algorithm-gates .tide-duo-panel.blue {border-left:3px solid #1d4ed8;background:linear-gradient(180deg,#fff,#f7fbff)}
#algorithm-gates .tide-duo-panel.brown {border-left:3px solid #b45309;background:linear-gradient(180deg,#fff,#fffaf3)}
#algorithm-gates .tide-duo-panel header {display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-top:-8px;padding-bottom:12px;border-bottom:1px solid #e5edf6}
#algorithm-gates .tide-duo-panel header h3 {margin:0;font-size:17px;font-weight:800;line-height:1.4}
#algorithm-gates .tide-duo-panel header span {color:var(--ink2);font-size:12px;font-weight:650;white-space:nowrap}
#algorithm-gates .tide-duo-panel.blue header h3 {color:#1d4ed8}
#algorithm-gates .tide-duo-panel.brown header h3 {color:#b45309}
#algorithm-gates .tide-duo-item+.tide-duo-item {margin-top:20px}
#algorithm-gates .tide-duo-item span {display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:800}
#algorithm-gates .tide-duo-item span:before {content:"";width:17px;height:2px;background:currentColor}
#algorithm-gates .tide-duo-item h4 {margin:0;font-size:19px;font-weight:800;line-height:1.45;color:var(--ink)}
#algorithm-gates .tide-duo-item p {margin:8px 0 0;color:var(--ink2);font-size:12.5px;line-height:1.9}
#algorithm-gates .tabs {margin-top:52px}
@media(max-width:1100px){#algorithm-gates .tide-layout {grid-template-columns:1fr}}
#algorithm-gates .tide-duo-item.blue span,#algorithm-gates .tide-duo-panel.blue .tide-duo-item span {color:#1d4ed8}
#algorithm-gates .tide-duo-item.brown span,#algorithm-gates .tide-duo-panel.brown .tide-duo-item span {color:#b45309}
@media(max-width:760px){#algorithm-gates .tide-points {grid-template-columns:1fr;gap:18px}}
@media(max-width:1100px){#algorithm-gates .tide-duo {grid-template-columns:1fr;gap:28px}}
@media(max-width:760px){#algorithm-gates .tide-duo-split {grid-template-columns:1fr;gap:18px}#algorithm-gates .tide-duo-panel header span {white-space:normal}}
@media(max-width:680px){#algorithm-gates .chapter-palette {margin-top:42px}#algorithm-gates .thirteen {gap:4px;height:31px;margin-top:42px}}
@media(prefers-reduced-motion:reduce){#algorithm-gates .thirteen i {transition:none}}

#algorithm-gates .rv-flow-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:13px;margin:2px 0 22px}
#algorithm-gates .rv-flow-step{position:relative;min-width:0;padding:18px 16px 16px;border:1px solid #dbe4ee;border-radius:9px;background:#fff;box-shadow:0 8px 22px rgba(15,23,42,.04);transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s,border-color .22s;cursor:pointer}
#algorithm-gates .rv-flow-step:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(15,23,42,.10);border-color:#93c5fd}
#algorithm-gates .rv-flow-step.active{border-color:#1d4ed8;background:linear-gradient(180deg,#fff,#f5f9ff);box-shadow:0 18px 40px rgba(29,78,216,.14)}
#algorithm-gates .rv-flow-step.reserve.active{border-color:#d97706;background:linear-gradient(180deg,#fff,#fffaf3);box-shadow:0 18px 40px rgba(217,119,6,.14)}
#algorithm-gates .rv-flow-step:not(:last-child):after{content:"";position:absolute;top:50%;right:-11px;width:20px;height:1px;background:#c3d3e4}
#algorithm-gates .rv-flow-step:not(:last-child):before{content:"";position:absolute;top:50%;right:-16px;transform:translateY(-50%);border-top:4px solid transparent;border-bottom:4px solid transparent;border-left:6px solid #c3d3e4;z-index:1}
#algorithm-gates .rv-step-badge{display:inline-flex;width:26px;height:26px;align-items:center;justify-content:center;border-radius:50%;background:#e0eaff;color:#1d4ed8;font-size:12px;font-weight:800}
#algorithm-gates .rv-flow-step.reserve .rv-step-badge{background:#ffedd5;color:#c2410c}
#algorithm-gates .rv-flow-title{display:block;margin-top:12px;font-size:15px;font-weight:800;color:#17233b;line-height:1.4}
#algorithm-gates .rv-flow-text{margin:7px 0 0;color:#5d6b7e;font-size:12px;line-height:1.7}
#algorithm-gates .rv-flow-tag{position:absolute;top:14px;right:14px;padding:3px 7px;border-radius:999px;background:#f1f5f9;color:#64748b;font-size:10px;font-weight:750}
#algorithm-gates .rv-flow-step.reserve .rv-flow-tag{background:#fff7ed;color:#c2410c}
#algorithm-gates .rv-flow-detail{min-height:58px;padding:14px 16px;border-left:4px solid #1d4ed8;border-radius:8px;background:#fff;box-shadow:0 8px 24px rgba(15,23,42,.06)}
#algorithm-gates .rv-flow-detail.reserve{border-left-color:#d97706;background:#fffaf3}
#algorithm-gates .rv-flow-detail strong{display:block;font-size:14px;color:#17233b}
#algorithm-gates .rv-flow-detail p{margin:6px 0 0;color:#5d6b7e;font-size:12.5px;line-height:1.8}
#algorithm-gates .rv-workspace{display:grid;grid-template-columns:minmax(250px,.8fr) minmax(0,2.2fr);gap:18px;align-items:start}
#algorithm-gates .rv-index-rail{padding:17px;border:1px solid #dbe4ee;border-radius:9px;background:#fff;box-shadow:0 10px 26px rgba(15,23,42,.04)}
#algorithm-gates .rv-rail-title{margin:0 0 13px;color:#17233b;font-size:15px;font-weight:800}
#algorithm-gates .rv-index-list{display:grid;gap:9px}
#algorithm-gates .rv-index-button{position:relative;overflow:hidden;display:grid;grid-template-columns:36px minmax(0,1fr);gap:11px;align-items:center;padding:11px;border:1px solid #dbe4ee;border-radius:8px;background:#fff;color:inherit;font:inherit;text-align:left;cursor:pointer;transition:.2s}
#algorithm-gates .rv-index-button:hover{transform:translateX(3px);border-color:#93c5fd;box-shadow:0 8px 20px rgba(15,23,42,.07)}
#algorithm-gates .rv-index-button.active{border-color:#1d4ed8;background:linear-gradient(90deg,#eff6ff,#fff 72%);box-shadow:0 10px 24px rgba(29,78,216,.11)}
#algorithm-gates .rv-index-mark{width:36px;height:36px;display:grid;place-items:center;border-radius:8px;background:#eff6ff;color:#1d4ed8;font-weight:800}
#algorithm-gates .rv-index-button.risk-high .rv-index-mark{background:#fff7ed;color:#c2410c}
#algorithm-gates .rv-index-name{display:block;font-size:13.5px;font-weight:750;color:#17233b}
#algorithm-gates .rv-index-sub{display:block;margin-top:3px;color:#7c8896;font-size:10.5px}
#algorithm-gates .rv-mini-bar{position:absolute;left:0;right:0;bottom:0;height:3px;background:#e2e8f0}
#algorithm-gates .rv-mini-bar i{display:block;height:100%;background:#2563eb}
#algorithm-gates .rv-index-button.risk-high .rv-mini-bar i{background:#d97706}
#algorithm-gates .rv-rail-tip{margin:14px 0 0;padding-top:12px;border-top:1px solid #edf2f7;color:#64748b;font-size:11px;line-height:1.7}
#algorithm-gates .rv-detail-shell{min-width:0}
#algorithm-gates .rv-detail-card{overflow:hidden;border:1px solid #dbe4ee;border-radius:9px;background:#fff;box-shadow:0 14px 34px rgba(15,23,42,.07)}
#algorithm-gates .rv-detail-head{position:relative;padding:20px 22px 18px;background:linear-gradient(120deg,#fff 55%,#eff6ff)}
#algorithm-gates .rv-detail-head.risk-high{background:linear-gradient(120deg,#fff 55%,#fff7ed)}
#algorithm-gates .rv-risk-pill{display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:999px;font-size:11.5px;font-weight:800;border:1px solid}
#algorithm-gates .rv-risk-pill.high{background:#fff7ed;border-color:#fed7aa;color:#c2410c}
#algorithm-gates .rv-risk-pill.low{background:#eff6ff;border-color:#bfdbfe;color:#1d4ed8}
#algorithm-gates .rv-risk-pill.mid{background:#f8fafc;border-color:#e2e8f0;color:#475569}
#algorithm-gates .rv-risk-pill:before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
#algorithm-gates .rv-detail-title{margin:13px 0 0;font-size:24px;font-weight:850;color:#17233b;letter-spacing:0}
#algorithm-gates .rv-detail-sub{margin:6px 0 0;color:#5d6b7e;font-size:12.5px}
#algorithm-gates .rv-detail-body{padding:19px 22px 22px;border-top:1px solid #edf2f7}
#algorithm-gates .rv-top-row{display:grid;grid-template-columns:150px minmax(0,1fr);gap:20px;align-items:center}
#algorithm-gates .rv-gauge-box{display:grid;place-items:center;padding:6px;border:1px solid #e5edf6;border-radius:9px;background:#f8fafc}
#algorithm-gates .rv-gauge{position:relative;width:118px;height:118px}
#algorithm-gates .rv-gauge svg{transform:rotate(-90deg)}
#algorithm-gates .rv-gauge circle{fill:none;stroke-width:9;stroke-linecap:round}
#algorithm-gates .rv-gauge .bg{stroke:#e9eef5}
#algorithm-gates .rv-gauge .value{stroke:#2563eb;transition:stroke-dashoffset .7s cubic-bezier(.2,.7,.3,1)}
#algorithm-gates .rv-detail-head.risk-high .rv-gauge .value{stroke:#d97706}
#algorithm-gates .rv-gauge-text{position:absolute;inset:0;display:grid;place-items:center;text-align:center}
#algorithm-gates .rv-gauge-text b{display:block;font-size:21px;color:#17233b;line-height:1.1}
#algorithm-gates .rv-gauge-text span{display:block;margin-top:2px;color:#7c8896;font-size:10px}
#algorithm-gates .rv-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px}
#algorithm-gates .rv-metric{min-width:0;padding:12px;border:1px solid #e5edf6;border-radius:8px;background:#f8fafc}
#algorithm-gates .rv-metric small{display:block;color:#7c8896;font-size:10.5px;font-weight:650}
#algorithm-gates .rv-metric strong{display:block;margin-top:5px;color:#17233b;font-size:16px;line-height:1.3;overflow-wrap:anywhere}
#algorithm-gates .rv-status-line{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
#algorithm-gates .rv-chip{padding:5px 9px;border-radius:6px;border:1px solid #e2e8f0;background:#fff;color:#475569;font-size:11px;font-weight:650}
#algorithm-gates .rv-chip.warn{background:#fff7ed;border-color:#fed7aa;color:#c2410c}
#algorithm-gates .rv-chip.safe{background:#eff6ff;border-color:#bfdbfe;color:#1d4ed8}
#algorithm-gates .rv-chip.isolated{background:#fff7ed;border-color:#fed7aa;color:#c2410c}
#algorithm-gates .rv-chip.consensus{background:#ecfeff;border-color:#a5f3fc;color:#0f766e}
#algorithm-gates .rv-block-title{display:flex;align-items:center;gap:10px;margin:22px 0 11px;color:#17233b;font-size:14px;font-weight:800}
#algorithm-gates .rv-block-title:after{content:"";flex:1;height:1px;background:#e5edf6}
#algorithm-gates .rv-path-meter{padding:15px;border:1px solid #e5edf6;border-radius:8px;background:#f8fafc}
#algorithm-gates .rv-meter-head{display:flex;justify-content:space-between;align-items:center;color:#5d6b7e;font-size:11.5px;font-weight:650}
#algorithm-gates .rv-segmented{display:flex;height:16px;overflow:hidden;margin-top:9px;border-radius:999px;background:#e9eef4}
#algorithm-gates .rv-segmented i{display:block;height:100%;transition:width .6s cubic-bezier(.2,.7,.3,1)}
#algorithm-gates .rv-segmented .safe{background:#2563eb}
#algorithm-gates .rv-segmented .rewrite{background:#7c3aed}
#algorithm-gates .rv-segmented .reverse{background:#f59e0b}
#algorithm-gates .rv-path-legend{display:flex;gap:14px;flex-wrap:wrap;margin-top:9px;color:#64748b;font-size:11px}
#algorithm-gates .rv-legend-item{display:inline-flex;align-items:center;gap:5px}
#algorithm-gates .rv-legend-item:before{content:"";width:8px;height:8px;border-radius:2px;background:currentColor}
#algorithm-gates .rv-legend-item.safe{color:#2563eb}
#algorithm-gates .rv-legend-item.rewrite{color:#7c3aed}
#algorithm-gates .rv-legend-item.reverse{color:#f59e0b}
#algorithm-gates .rv-reserve-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:10px}
#algorithm-gates .rv-reserve-card{min-width:0;padding:13px;border:1px solid #e5edf6;border-radius:8px;background:#fff;transition:.2s}
#algorithm-gates .rv-reserve-card:hover{transform:translateY(-3px);box-shadow:0 10px 22px rgba(15,23,42,.08)}
#algorithm-gates .rv-reserve-card.b{border-color:#fed7aa;background:#fffaf3}
#algorithm-gates .rv-reserve-card small{display:block;color:#7c8896;font-size:10.5px;font-weight:750}
#algorithm-gates .rv-reserve-card strong{display:block;margin-top:5px;color:#17233b;font-size:13.5px}
#algorithm-gates .rv-reserve-card p{margin:6px 0 0;color:#5d6b7e;font-size:11.5px;line-height:1.65}
#algorithm-gates .rv-reserve-card.b strong{color:#c2410c}
#algorithm-gates .rv-note-strip{margin-top:20px;padding:15px 17px;border:1px solid #dbe4ee;border-radius:8px;background:#f8fafc;color:#5d6b7e;font-size:12px;line-height:1.9}
#algorithm-gates .rv-note-strip b{color:#17233b}
@media(max-width:1200px){#algorithm-gates .rv-flow-grid{grid-template-columns:repeat(2,minmax(0,1fr))}#algorithm-gates .rv-flow-step:not(:last-child):after,#algorithm-gates .rv-flow-step:not(:last-child):before{display:none}#algorithm-gates .rv-workspace{grid-template-columns:1fr}}
@media(max-width:680px){#algorithm-gates .rv-flow-grid,#algorithm-gates .rv-reserve-row,#algorithm-gates .rv-top-row{grid-template-columns:1fr}#algorithm-gates .rv-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}#algorithm-gates .rv-detail-head{padding:18px}#algorithm-gates .rv-detail-body{padding:16px}}
@media(prefers-reduced-motion:reduce){#algorithm-gates .rv-flow-step,#algorithm-gates .rv-index-button,#algorithm-gates .rv-segmented i,#algorithm-gates .rv-gauge .value,#algorithm-gates .rv-reserve-card{transition:none}}

#algorithm-gates .chapter-palette {max-width:620px;margin:52px 0 0 auto}
#algorithm-gates .thirteen {position:relative;display:grid;grid-template-columns:repeat(13,1fr);gap:7px;height:55px;margin-top:64px}
#algorithm-gates .thirteen i {background:rgba(16,23,37,.06);border-radius:2px;transform:scaleY(.36);transform-origin:bottom;opacity:.42;transition:.6s cubic-bezier(.2,.7,.2,1)}
#algorithm-gates .thirteen i:nth-child(3n) {background:rgba(37,99,235,.22)}
#algorithm-gates .thirteen i:nth-child(4n) {background:rgba(201,164,74,.32)}
#algorithm-gates .thirteen.in i {transform:scaleY(1);opacity:1}
#algorithm-gates .thirteen i:nth-child(7) {background:var(--blue)}
#algorithm-gates .thirteen i:nth-child(13) {background:var(--gold)}

#algorithm-gates .gate-section {min-width:0}
#algorithm-gates .gate-hero {display:grid;grid-template-columns:minmax(0,300px) minmax(300px,1fr);gap:48px;align-items:start;margin:8px 0 24px}
#algorithm-gates .gate-eyebrow.ink-seal {display:inline-flex;align-items:center;gap:10px;padding:0;border:0;background:transparent}
#algorithm-gates .gate-eyebrow.ink-seal .seal {width:56px;height:56px;display:flex;align-items:center;justify-content:center;background:#1d4ed8;color:#fff;border-radius:6px;box-shadow:4px 4px 0 rgba(29,78,216,.12)}
#algorithm-gates .gate-eyebrow.ink-seal .seal span {display:block;width:32px;font-size:16px;line-height:1.25;font-weight:800;text-align:center}
#algorithm-gates .gate-eyebrow.ink-seal .mono {color:var(--ink2);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:13px;font-weight:750;letter-spacing:1px}
#algorithm-gates .gate-seal-rule {height:1px;background:var(--ink);margin-top:16px}
#algorithm-gates .gate-section h2.chapter-title {margin:18px 0 0;font-size:48px;line-height:1.12;font-weight:800}
#algorithm-gates .gate-note {padding-top:0;color:var(--ink2);font-size:14px;line-height:2;max-width:640px;margin-left:auto;text-align:right}
#algorithm-gates .gate-jump {display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px;align-items:center;margin:-6px 0 20px;padding:14px 18px;background:#eff6ff;border:1px solid #bfdbfe;border-left:4px solid #1d4ed8;border-radius:8px}
#algorithm-gates .jump-title {margin:0;font-size:14px;font-weight:750;color:#1e40af}
#algorithm-gates .jump-copy {margin:5px 0 0;font-size:12.5px;line-height:1.8;color:#1e3a8a}
#algorithm-gates .jump-link {display:inline-flex;align-items:center;gap:8px;padding:9px 14px;background:#fff;border:1px solid #93c5fd;border-radius:6px;color:#1d4ed8;font:inherit;font-size:13px;font-weight:750;text-decoration:none;white-space:nowrap;transition:background .18s ease,border-color .18s ease,transform .18s ease}
#algorithm-gates .jump-link .arrow {transition:transform .18s ease}
#algorithm-gates .jump-link:hover {background:#eff6ff;border-color:#60a5fa}
#algorithm-gates .jump-link:hover .arrow {transform:translateX(3px)}
#algorithm-gates .jump-link:focus-visible {outline:2px solid #1d4ed8;outline-offset:2px}
#algorithm-gates .gate-panel {min-width:0;background:#f8fafc;border:1px solid var(--line);border-radius:8px;padding:18px;margin-top:14px}
#algorithm-gates .gate-panel {position:relative}
#algorithm-gates .gate-panel h3 {margin:0;font-size:16px}
#algorithm-gates #cone-chart, #algorithm-gates #prob-chart {width:100%;height:460px}
#algorithm-gates .gate-panel .tabs {margin-top:0}
#algorithm-gates .panel-head {display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap}
#algorithm-gates .counts {display:flex;gap:8px;flex-wrap:wrap;margin-top:10px;color:#64748b;font-size:12px}
#algorithm-gates .counts span {display:inline-flex;align-items:center;gap:5px;background:#fff;border:1px solid #e2e8f0;border-radius:999px;padding:4px 8px}
#algorithm-gates .cone-detail {position:absolute;top:6px;right:180px;box-sizing:border-box;width:min(262px,calc(100% - 28px));padding:9px 10px;background:rgba(255,255,255,.97);border:1px solid #dbe3ec;border-radius:6px;box-shadow:0 8px 22px rgba(15,23,42,.08);opacity:0;visibility:hidden;transition:opacity .12s,visibility .12s;pointer-events:none;z-index:6}
#algorithm-gates .cone-detail-head {display:flex;justify-content:space-between;align-items:center;gap:8px}
#algorithm-gates .cone-detail-badge {display:inline-block;margin-top:5px;background:#dbeafe;color:#1d4ed8;font-size:10px;font-weight:700;border-radius:999px;padding:1px 6px}
#algorithm-gates .cone-detail-move {font-size:12.5px;font-weight:700}
#algorithm-gates .cone-detail .up {color:#2563eb}
#algorithm-gates .cone-detail .down {color:#d97706}
#algorithm-gates .cone-detail dl {margin:7px 0 0;display:grid;grid-template-columns:70px minmax(0,1fr);gap:6px;align-items:baseline}
#algorithm-gates .cone-detail dl > div + div {margin-top:4px}
#algorithm-gates .cone-detail dt {font-size:10.5px;color:#6b7280;white-space:nowrap}
#algorithm-gates .cone-detail dd {margin:0;font-size:11.5px;line-height:1.35;color:#334155;overflow-wrap:anywhere}
#algorithm-gates #cone-chart, #algorithm-gates #prob-chart {width:100%;height:460px}
#algorithm-gates .gate-caption {margin:10px 0 0;color:var(--ink2);font-size:11.5px;line-height:1.7}
@media(max-width:560px){#algorithm-gates .cone-detail {top:6px;left:10px;right:auto;transform:none;width:calc(100% - 20px)}}
@media(max-width:1100px){#algorithm-gates .gate-hero {grid-template-columns:1fr;gap:18px}#algorithm-gates .gate-note {padding-top:0;margin-left:0;text-align:left}#algorithm-gates .gate-section h2.chapter-title {font-size:32px}}
@media(max-width:760px){#algorithm-gates .gate-section {padding:18px}#algorithm-gates .gate-hero {grid-template-columns:1fr}#algorithm-gates .gate-eyebrow.ink-seal .seal {width:50px;height:50px}#algorithm-gates .gate-eyebrow.ink-seal .seal span {width:28px;font-size:14px}#algorithm-gates .gate-eyebrow.ink-seal .mono {font-size:12px}#algorithm-gates .gate-seal-rule {margin-top:12px}#algorithm-gates .gate-section h2.chapter-title {font-size:28px}#algorithm-gates .gate-panel {padding:12px}}
@media(max-width:760px){#algorithm-gates .gate-jump {grid-template-columns:1fr;gap:12px;padding:12px}#algorithm-gates .jump-link {justify-content:center}}
@media(max-width:760px){.gate-transition-copy{padding:0 11px}#algorithm-gates ~ .footer{padding-left:max(calc((100% - 1400px) / 2),11px);padding-right:max(calc((100% - 1400px) / 2),11px)}}

/* Gate 1 mobile layout: keep the desktop defaults above untouched. */
@media (max-width:760px), (max-width:1100px) and (pointer:coarse) {
  #algorithm-gates .shell {width:calc(100% - 12px)}
  #algorithm-gates .shell > .section:first-of-type {
    display:grid;
    grid-template-columns:minmax(0,1fr);
    grid-template-areas:
      "head"
      "duo"
      "tabs"
      "metrics"
      "control"
      "chart"
      "caption"
      "evidence";
    padding:0 14px;
    border:0;
    background:transparent;
  }
  #algorithm-gates .shell > .section:first-of-type > .chapter-hero {grid-area:head;margin:0}
  #algorithm-gates .shell > .section:first-of-type .chapter-hero > div:first-child {
    display:flex;
    align-items:center;
    gap:12px;
    min-width:0;
  }
  #algorithm-gates .shell > .section:first-of-type .chapter-hero > div:first-child:before {
    content:"";
    order:2;
    flex:0 0 1px;
    align-self:stretch;
    min-height:44px;
    margin:2px 0;
    background:#d7e1ec;
  }
  #algorithm-gates .shell > .section:first-of-type .chapter-eyebrow {
    flex:0 0 auto;
    display:grid;
    justify-items:center;
    gap:5px;
    padding:0;
    border:0;
    background:transparent;
  }
  #algorithm-gates .shell > .section:first-of-type .chapter-eyebrow .seal {
    position:relative;
    width:46px;
    height:46px;
    display:flex;
    align-items:center;
    justify-content:center;
    background:#1d4ed8;
    color:#fff;
    border-radius:7px;
    box-shadow:3px 3px 0 rgba(29,78,216,.16);
  }
  #algorithm-gates .shell > .section:first-of-type .chapter-eyebrow .seal:before {
    content:"";
    position:absolute;
    inset:4px;
    border:1px solid rgba(255,255,255,.58);
    border-radius:4px;
  }
  #algorithm-gates .shell > .section:first-of-type .chapter-eyebrow .seal span {
    position:relative;
    width:auto;
    font-size:11.5px;
    line-height:1;
    white-space:nowrap;
  }
  #algorithm-gates .shell > .section:first-of-type .chapter-eyebrow .mono {
    color:#1d4ed8;
    font-size:9.5px;
    line-height:1;
    letter-spacing:.5px;
  }
  #algorithm-gates .shell > .section:first-of-type .seal-rule {display:none}
  #algorithm-gates .shell > .section:first-of-type h2.chapter-title {
    flex:1 1 auto;
    min-width:0;
    order:3;
    margin:0;
    font-size:24px;
    line-height:1.18;
    white-space:nowrap;
  }
  #algorithm-gates .shell > .section:first-of-type .chapter-note {margin:7px 0 0;font-size:12px;line-height:1.75}
  #algorithm-gates .shell > .section:first-of-type .chapter-palette {display:none}

  #algorithm-gates .shell > .section:first-of-type .tide-duo {grid-area:duo;display:grid;grid-template-columns:1fr;margin:10px 0 12px}
  #algorithm-gates .shell > .section:first-of-type .tide-duo-rail {display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;padding-left:0}
  #algorithm-gates .shell > .section:first-of-type .tide-duo-rail:before {display:none}
  #algorithm-gates .shell > .section:first-of-type .tide-duo-method {min-width:0;padding:9px 10px;border-radius:6px;background:#f8fafc}
  #algorithm-gates .shell > .section:first-of-type .tide-duo-method:first-child {border-left:3px solid #1d4ed8}
  #algorithm-gates .shell > .section:first-of-type .tide-duo-method + .tide-duo-method {margin-top:0;border-left:3px solid #b45309}
  #algorithm-gates .shell > .section:first-of-type .tide-duo-method:before {display:none}
  #algorithm-gates .shell > .section:first-of-type .tide-duo-method strong {font-size:14px;line-height:1.35}
  #algorithm-gates .shell > .section:first-of-type .tide-duo-method p {margin-top:4px;font-size:11px;line-height:1.5}
  #algorithm-gates .shell > .section:first-of-type .tide-duo-split {display:none}

  #algorithm-gates .shell > .section:first-of-type #zigTabs {
    grid-area:tabs;
    display:flex;
    flex-wrap:nowrap;
    margin:8px 0 0;
    border:1px solid #dbe4ee;
    border-radius:8px;
    overflow:hidden;
    background:#fff;
  }
  #algorithm-gates .shell > .section:first-of-type #zigTabs button {
    flex:1 1 0;
    min-width:0;
    padding:8px 4px;
    border:0;
    background:#fff;
    color:#5d6b7e;
    font-size:11px;
    line-height:1.2;
    cursor:pointer;
    white-space:nowrap;
  }
  #algorithm-gates .shell > .section:first-of-type #zigTabs button.active {background:#17233b;color:#fff}

  #algorithm-gates .shell > .section:first-of-type #zigMetrics {
    grid-area:metrics;
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:6px;
    margin:8px 0 0;
  }
  #algorithm-gates .shell > .section:first-of-type .metric {padding:7px 8px;border-radius:6px}
  #algorithm-gates .shell > .section:first-of-type .metric b {font-size:15px;line-height:1.25}
  #algorithm-gates .shell > .section:first-of-type .metric span {margin-top:2px;font-size:10px;line-height:1.35}

  #algorithm-gates .shell > .section:first-of-type .controls {
    grid-area:control;
    display:block;
    margin:10px 0 8px;
  }
  #algorithm-gates .shell > .section:first-of-type .controls .value {
    display:flex;
    align-items:center;
    justify-content:space-between;
    margin:0;
    padding:7px 9px;
    border:1px solid #dbe4ee;
    border-radius:6px;
    background:#fff;
    color:#17233b;
    font-size:12px;
  }
  #algorithm-gates .shell > .section:first-of-type .controls .value:after {
    content:"拖动阈值，观察 ZigZag 变化";
    display:block;
    margin-top:4px;
    color:#64748b;
    font-size:10.5px;
    line-height:1;
    text-align:center;
  }
  #algorithm-gates .shell > .section:first-of-type .controls input[type="range"] {margin-top:8px}

  #algorithm-gates .shell > .section:first-of-type #zigChart {
    grid-area:chart;
    width:100%;
    height:360px;
    margin:0;
    box-sizing:border-box;
    border:1px solid #dbe4ee;
    border-radius:6px;
    overflow:hidden;
  }
  #algorithm-gates .shell > .section:first-of-type .chart-caption {grid-area:caption;margin:6px 0 0;font-size:11px;line-height:1.55}
  #algorithm-gates .shell > .section:first-of-type .chart-caption {display:none}
  #algorithm-gates .shell > .section:first-of-type details.evidence {grid-area:evidence;margin-top:8px}
  #algorithm-gates .shell > .section:first-of-type .table-wrap {border:0;margin-top:4px}

  #algorithm-gates #gate-future {
    display:block;
    margin-top:34px;
    padding:0 14px;
    border:0;
    background:transparent;
  }
  #algorithm-gates #gate-future .gate-hero {
    display:grid;
    grid-template-columns:minmax(0,1fr);
    gap:18px;
    margin:0;
  }
  #algorithm-gates #gate-future .gate-hero > div:first-child {
    display:flex;
    align-items:center;
    gap:12px;
    min-width:0;
  }
  #algorithm-gates #gate-future .gate-hero > div:first-child:before {
    content:"";
    order:2;
    flex:0 0 1px;
    align-self:stretch;
    min-height:44px;
    margin:2px 0;
    background:#d7e1ec;
  }
  #algorithm-gates #gate-future .chapter-eyebrow.ink-seal {
    flex:0 0 auto;
    display:grid;
    justify-items:center;
    gap:5px;
    padding:0;
    border:0;
    background:transparent;
  }
  #algorithm-gates #gate-future .chapter-eyebrow.ink-seal .seal {
    position:relative;
    width:46px;
    height:46px;
    display:flex;
    align-items:center;
    justify-content:center;
    background:#1d4ed8;
    color:#fff;
    border-radius:7px;
    box-shadow:3px 3px 0 rgba(29,78,216,.16);
  }
  #algorithm-gates #gate-future .chapter-eyebrow.ink-seal .seal:before {
    content:"";
    position:absolute;
    inset:4px;
    border:1px solid rgba(255,255,255,.58);
    border-radius:4px;
  }
  #algorithm-gates #gate-future .chapter-eyebrow.ink-seal .seal span {
    position:relative;
    width:auto;
    font-size:11.5px;
    line-height:1;
    white-space:nowrap;
  }
  #algorithm-gates #gate-future .chapter-eyebrow.ink-seal .mono {
    color:#1d4ed8;
    font-family:ui-monospace,SFMono-Regular,Consolas,monospace;
    font-size:9.5px;
    font-weight:750;
    line-height:1;
    letter-spacing:.5px;
    white-space:nowrap;
  }
  #algorithm-gates #gate-future .gate-seal-rule {display:none}
  #algorithm-gates #gate-future h2.chapter-title {
    flex:1 1 auto;
    min-width:0;
    order:3;
    margin:0;
    font-size:24px;
    line-height:1.18;
    white-space:nowrap;
  }
  #algorithm-gates #gate-future .gate-note {
    max-width:none;
    margin:7px 0 0;
    text-align:left;
    font-size:12px;
    line-height:1.75;
  }
  #algorithm-gates #gate-future .gate-jump {
    grid-template-columns:1fr;
    gap:12px;
    margin:12px 0 20px;
    padding:12px;
    background:#eff6ff;
    border:1px solid #bfdbfe;
    border-left:4px solid #1d4ed8;
    border-radius:8px;
  }
  #algorithm-gates #gate-future .jump-title {font-size:14px;font-weight:750;color:#1e40af}
  #algorithm-gates #gate-future .jump-copy {margin-top:5px;font-size:12.5px;line-height:1.8;color:#1e3a8a}
  #algorithm-gates #gate-future .jump-link {
    justify-content:center;
    padding:9px 14px;
    font-size:13px;
  }
  #algorithm-gates #gate-future .gate-panel {
    margin-top:10px;
    padding:0;
    background:transparent;
    border:0;
    border-radius:0;
  }
  #algorithm-gates #gate-future .panel-head {
    align-items:center;
    gap:8px;
  }
  #algorithm-gates #gate-future .panel-head h3 {font-size:13px;line-height:1.35}
  #algorithm-gates #gate-future #cone-status {font-size:10.5px;line-height:1.35;color:#5d6b7e}
  #algorithm-gates #gate-future #cone-symbol-tabs {
    flex:1 0 100%;
    width:100%;
    display:flex;
    flex-wrap:wrap;
    margin:8px 0 0;
    border:1px solid #dbe4ee;
    border-radius:8px;
    overflow:hidden;
    background:#fff;
  }
  #algorithm-gates #gate-future #cone-symbol-tabs button {
    flex:1 1 0;
    min-width:0;
    padding:8px 4px;
    text-align:center;
    border:0;
    background:#fff;
    color:#5d6b7e;
    font-size:11px;
    line-height:1.2;
    cursor:pointer;
    white-space:nowrap;
  }
  #algorithm-gates #gate-future #cone-symbol-tabs button.active {
    background:#17233b;
    color:#fff;
  }
  #algorithm-gates #gate-future #cone-chart {
    box-sizing:border-box;
    width:100%;
    height:360px;
    margin:8px 0 0;
    border:1px solid #dbe4ee;
    border-radius:6px;
    overflow:hidden;
  }
  #algorithm-gates #gate-future .gate-caption {margin-top:6px;font-size:11px;line-height:1.55}

  #algorithm-gates #gate-reversal {
    display:block;
    margin-top:34px;
    padding:0 14px;
    border:0;
    background:transparent;
  }
  #algorithm-gates #gate-reversal .gate-hero {
    display:grid;
    grid-template-columns:minmax(0,1fr);
    gap:18px;
    margin:0;
  }
  #algorithm-gates #gate-reversal .gate-hero > div:first-child {
    display:flex;
    align-items:center;
    gap:12px;
    min-width:0;
  }
  #algorithm-gates #gate-reversal .gate-hero > div:first-child:before {
    content:"";
    order:2;
    flex:0 0 1px;
    align-self:stretch;
    min-height:44px;
    margin:2px 0;
    background:#d7e1ec;
  }
  #algorithm-gates #gate-reversal .chapter-eyebrow.ink-seal {
    flex:0 0 auto;
    display:grid;
    justify-items:center;
    gap:5px;
    padding:0;
    border:0;
    background:transparent;
  }
  #algorithm-gates #gate-reversal .chapter-eyebrow.ink-seal .seal {
    position:relative;
    width:46px;
    height:46px;
    display:flex;
    align-items:center;
    justify-content:center;
    background:#1d4ed8;
    color:#fff;
    border-radius:7px;
    box-shadow:3px 3px 0 rgba(29,78,216,.16);
  }
  #algorithm-gates #gate-reversal .chapter-eyebrow.ink-seal .seal:before {
    content:"";
    position:absolute;
    inset:4px;
    border:1px solid rgba(255,255,255,.58);
    border-radius:4px;
  }
  #algorithm-gates #gate-reversal .chapter-eyebrow.ink-seal .seal span {
    position:relative;
    width:auto;
    font-size:11.5px;
    line-height:1;
    white-space:nowrap;
  }
  #algorithm-gates #gate-reversal .chapter-eyebrow.ink-seal .mono {
    color:#1d4ed8;
    font-family:ui-monospace,SFMono-Regular,Consolas,monospace;
    font-size:9.5px;
    font-weight:750;
    line-height:1;
    letter-spacing:.5px;
    white-space:nowrap;
  }
  #algorithm-gates #gate-reversal .gate-seal-rule {display:none}
  #algorithm-gates #gate-reversal h2.chapter-title {
    flex:1 1 auto;
    min-width:0;
    order:3;
    margin:0;
    font-size:24px;
    line-height:1.18;
    white-space:nowrap;
  }
  #algorithm-gates #gate-reversal .gate-note {
    max-width:none;
    margin:7px 0 0;
    text-align:left;
    font-size:12px;
    line-height:1.75;
  }
  #algorithm-gates #gate-reversal .gate-jump {
    grid-template-columns:1fr;
    gap:12px;
    margin:12px 0 20px;
    padding:12px;
    background:#eff6ff;
    border:1px solid #bfdbfe;
    border-left:4px solid #1d4ed8;
    border-radius:8px;
  }
  #algorithm-gates #gate-reversal .jump-link {justify-content:center}
  #algorithm-gates #gate-reversal .jump-title {font-size:14px;font-weight:750;color:#1e40af}
  #algorithm-gates #gate-reversal .jump-copy {margin-top:5px;font-size:12.5px;line-height:1.8;color:#1e3a8a}
  #algorithm-gates #gate-reversal .gate-panel {
    margin-top:0;
    padding:0;
    background:transparent;
    border:0;
    border-radius:0;
  }
  #algorithm-gates #gate-reversal .panel-head span {display:none}
  #algorithm-gates #gate-reversal .rv-block-title,
  #algorithm-gates #gate-reversal .rv-workspace,
  #algorithm-gates #gate-reversal .rv-note-strip {display:none}

  #algorithm-gates #gate-reversal .rv-flow-grid {margin-top:7px}
  #algorithm-gates #gate-reversal .rv-flow-step {
    overflow:hidden;
    padding:30px 14px 14px;
    border-radius:8px;
    box-shadow:none;
  }
  #algorithm-gates #gate-reversal .rv-flow-step.active,
  #algorithm-gates #gate-reversal .rv-flow-step.reserve.active {
    box-shadow:0 10px 24px rgba(15,23,42,.07);
  }
  #algorithm-gates #gate-reversal .rv-step-badge {
    position:absolute;
    left:-1px;
    top:-1px;
    width:28px;
    height:34px;
    display:grid;
    place-items:start center;
    padding-top:5px;
    border-radius:0;
    background:#e8effa;
    color:#1d4ed8;
    clip-path:polygon(0 0,100% 0,100% 100%,50% 78%,0 100%);
    box-shadow:2px 2px 0 rgba(29,78,216,.08);
  }
  #algorithm-gates #gate-reversal .rv-flow-step.active .rv-step-badge {
    background:#1d4ed8;
    color:#fff;
  }
  #algorithm-gates #gate-reversal .rv-flow-step.reserve .rv-step-badge {
    background:#ffedd5;
    color:#c2410c;
  }
  #algorithm-gates #gate-reversal .rv-flow-step.reserve.active .rv-step-badge {
    background:#d97706;
    color:#fff;
  }
  #algorithm-gates #gate-reversal .rv-flow-tag {
    top:auto;
    right:auto;
    position:relative;
    display:inline-block;
    margin-bottom:5px;
  }
  #algorithm-gates #gate-reversal .rv-flow-title {margin-top:0}

  #algorithm-gates #gate-probability {
    display:block;
    margin-top:34px;
    padding:0 14px;
    border:0;
    background:transparent;
  }
  #algorithm-gates #gate-probability .gate-hero {
    display:grid;
    grid-template-columns:minmax(0,1fr);
    gap:18px;
    margin:0;
  }
  #algorithm-gates #gate-probability .gate-hero > div:first-child {
    display:flex;
    align-items:center;
    gap:12px;
    min-width:0;
  }
  #algorithm-gates #gate-probability .gate-hero > div:first-child:before {
    content:"";
    order:2;
    flex:0 0 1px;
    align-self:stretch;
    min-height:44px;
    margin:2px 0;
    background:#d7e1ec;
  }
  #algorithm-gates #gate-probability .chapter-eyebrow.ink-seal {
    flex:0 0 auto;
    display:grid;
    justify-items:center;
    gap:5px;
    padding:0;
    border:0;
    background:transparent;
  }
  #algorithm-gates #gate-probability .chapter-eyebrow.ink-seal .seal {
    position:relative;
    width:46px;
    height:46px;
    display:flex;
    align-items:center;
    justify-content:center;
    background:#1d4ed8;
    color:#fff;
    border-radius:7px;
    box-shadow:3px 3px 0 rgba(29,78,216,.16);
  }
  #algorithm-gates #gate-probability .chapter-eyebrow.ink-seal .seal:before {
    content:"";
    position:absolute;
    inset:4px;
    border:1px solid rgba(255,255,255,.58);
    border-radius:4px;
  }
  #algorithm-gates #gate-probability .chapter-eyebrow.ink-seal .seal span {
    position:relative;
    width:auto;
    font-size:11.5px;
    line-height:1;
    white-space:nowrap;
  }
  #algorithm-gates #gate-probability .chapter-eyebrow.ink-seal .mono {
    color:#1d4ed8;
    font-family:ui-monospace,SFMono-Regular,Consolas,monospace;
    font-size:9.5px;
    font-weight:750;
    line-height:1;
    letter-spacing:.5px;
    white-space:nowrap;
  }
  #algorithm-gates #gate-probability .gate-seal-rule {display:none}
  #algorithm-gates #gate-probability h2.chapter-title {
    flex:1 1 auto;
    min-width:0;
    order:3;
    margin:0;
    font-size:24px;
    line-height:1.18;
    white-space:nowrap;
  }
  #algorithm-gates #gate-probability .gate-note {
    max-width:none;
    margin:7px 0 0;
    text-align:left;
    font-size:12px;
    line-height:1.75;
  }
  #algorithm-gates #gate-probability .gate-jump {
    grid-template-columns:1fr;
    gap:12px;
    margin:12px 0 20px;
    padding:12px;
    background:#eff6ff;
    border:1px solid #bfdbfe;
    border-left:4px solid #1d4ed8;
    border-radius:8px;
  }
  #algorithm-gates #gate-probability .jump-link {justify-content:center}
  #algorithm-gates #gate-probability .jump-title {font-size:14px;font-weight:750;color:#1e40af}
  #algorithm-gates #gate-probability .jump-copy {margin-top:5px;font-size:12.5px;line-height:1.8;color:#1e3a8a}
  #algorithm-gates #gate-probability .gate-panel {
    display:flex;
    flex-direction:column;
    margin-top:0;
    padding:0;
    background:transparent;
    border:0;
    border-radius:0;
  }
  #algorithm-gates #gate-probability .panel-head {
    display:contents;
  }
  #algorithm-gates #gate-probability .panel-head h3 {order:1;font-size:13px;line-height:1.35}
  #algorithm-gates #gate-probability #prob-status {order:2;font-size:10.5px;line-height:1.35;color:#5d6b7e}
  #algorithm-gates #gate-probability #prob-status {font-size:10.5px;line-height:1.35;color:#5d6b7e}
  #algorithm-gates #gate-probability #prob-symbol-tabs,
  #algorithm-gates #gate-probability #prob-horizon-tabs {
    box-sizing:border-box;
    flex:1 0 100%;
    width:100%;
    display:flex;
    flex-wrap:wrap;
    margin:8px 0 0;
    border:1px solid #dbe4ee;
    border-radius:8px;
    overflow:hidden;
    background:#fff;
  }
  #algorithm-gates #gate-probability #prob-symbol-tabs button,
  #algorithm-gates #gate-probability #prob-horizon-tabs button {
    flex:1 1 0;
    min-width:0;
    padding:8px 11px;
    text-align:center;
    border:0;
    background:#fff;
    color:#5d6b7e;
    font-size:12px;
    cursor:pointer;
    white-space:nowrap;
  }
  #algorithm-gates #gate-probability #prob-symbol-tabs button.active,
  #algorithm-gates #gate-probability #prob-horizon-tabs button.active {
    background:#17233b;
    color:#fff;
  }
  #algorithm-gates #gate-probability #prob-symbol-tabs {order:3}
  #algorithm-gates #gate-probability #prob-chart {
    order:4;
    box-sizing:border-box;
    width:100%;
    height:360px;
    margin:8px 0 0;
    border:1px solid #dbe4ee;
    border-radius:6px;
    overflow:hidden;
  }
  #algorithm-gates #gate-probability #prob-horizon-tabs {order:5}
  #algorithm-gates #gate-probability .counts {
    order:6;
    display:grid;
    grid-template-columns:repeat(5,minmax(0,1fr));
    gap:4px;
    margin-top:8px;
    font-size:10px;
  }
  #algorithm-gates #gate-probability .counts span {
    display:grid;
    justify-items:center;
    gap:3px;
    padding:7px 2px;
    border:1px solid #e2e8f0;
    border-radius:6px;
    background:#fff;
    text-align:center;
  }
  #algorithm-gates #gate-probability .counts b {font-size:11px;line-height:1}
}