/* ===== 设计 token ===== */
:root{
  --bg:#0b0e14; --bg2:#0e1320; --panel:#141a2b; --panel2:#1a2236;
  --text:#e8edf7; --muted:#94a0b8; --line:rgba(255,255,255,.09);
  --accent:#4f8cff; --accent2:#a855f7; --gold:#f5b942; --good:#22c55e; --warn:#f59e0b; --danger:#ef4444;
  --grad:linear-gradient(120deg,#4f8cff,#a855f7);
  --radius:16px; --maxw:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden;max-width:100vw}
body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  line-height:1.6; -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
img{max-width:100%;display:block}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .4em}
p{margin:0 0 1em}

/* ===== 进度条 & 导航点 ===== */
.progress-bar{position:fixed;top:0;left:0;right:0;height:3px;background:rgba(255,255,255,.06);z-index:60}
.progress-bar span{display:block;height:100%;width:0;background:var(--grad);transition:width .15s ease}
.dots{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:60;display:flex;flex-direction:column;gap:12px}
.dots button{width:10px;height:10px;border-radius:50%;border:0;background:rgba(255,255,255,.22);cursor:pointer;padding:0;transition:.2s;position:relative}
.dots button:hover{transform:scale(1.3);background:rgba(255,255,255,.5)}
.dots button.active{background:var(--accent);box-shadow:0 0 0 4px rgba(79,140,255,.18)}
.dots button span{position:absolute;right:18px;top:50%;transform:translateY(-50%);white-space:nowrap;font-size:12px;color:var(--muted);background:var(--panel);padding:2px 8px;border-radius:6px;opacity:0;pointer-events:none;transition:.2s}
.dots button:hover span{opacity:1}
@media(max-width:820px){.dots{display:none}}

/* ===== FAB ===== */
.fab{position:fixed;right:20px;bottom:22px;z-index:60;border:0;cursor:pointer;
  background:var(--grad);color:#fff;font-size:14px;font-weight:600;padding:12px 18px;border-radius:999px;
  box-shadow:0 8px 30px rgba(79,140,255,.4);transition:.2s}
.fab:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(79,140,255,.55)}

/* ===== 布局 ===== */
.screen{min-height:100vh;display:flex;align-items:center;padding:88px 24px;position:relative;border-bottom:1px solid var(--line)}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto}
.wrap.center{text-align:center}
.kicker{display:inline-block;font-size:13px;letter-spacing:.15em;text-transform:uppercase;color:var(--accent);
  border:1px solid rgba(79,140,255,.35);padding:5px 12px;border-radius:999px;margin-bottom:18px;font-weight:600}
.kicker.gold{color:var(--gold);border-color:rgba(245,185,66,.4)}
.kicker.warn{color:var(--warn);border-color:rgba(245,158,11,.4)}
h2{font-size:clamp(26px,4vw,42px);font-weight:800;letter-spacing:-.01em}
h3{font-size:19px;font-weight:700}
.lead{font-size:clamp(15px,1.8vw,18px);color:var(--muted);max-width:760px;margin-bottom:28px}
.disclaimer{font-size:13px;color:var(--muted);margin-top:22px;padding:10px 14px;background:rgba(255,255,255,.03);border-radius:10px;border:1px solid var(--line)}

/* ===== reveal 动画 ===== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ===== 封面 ===== */
.hero{overflow:hidden}
.hero-bg{position:absolute;inset:0;background:
  radial-gradient(60% 50% at 20% 15%,rgba(79,140,255,.22),transparent 60%),
  radial-gradient(55% 45% at 85% 80%,rgba(168,85,247,.20),transparent 60%),
  var(--bg);z-index:-1}
.hero-inner{max-width:920px}
.hero-title{font-size:clamp(36px,7vw,76px);font-weight:900;letter-spacing:-.02em;margin:.1em 0 .2em;
  background:linear-gradient(120deg,#fff 20%,#a9c4ff 60%,#d6b3ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:clamp(16px,2.2vw,22px);color:#c3ccde;max-width:760px;margin-bottom:34px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:26px}
.hstat{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--radius);padding:18px 14px}
.hstat-num{font-size:clamp(22px,3vw,34px);font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hstat-label{font-size:13px;color:var(--muted);margin-top:4px}
.hero-note{font-size:13px;color:var(--muted)}
.scroll-hint{margin-top:20px;font-size:13px;color:var(--muted);animation:bob 1.8s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}
@media(max-width:640px){.hero-stats{grid-template-columns:repeat(2,1fr)}}

/* ===== 卡片网格 ===== */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.cards-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:26px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.25s}
.card:hover{transform:translateY(-4px);border-color:rgba(79,140,255,.4);box-shadow:0 12px 40px rgba(0,0,0,.35)}
.card-ico{font-size:34px;margin-bottom:12px}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);font-size:14px;margin:0}
@media(max-width:860px){.cards-3,.cards-4{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.cards-3,.cards-4{grid-template-columns:1fr}}

/* ===== 实证 ===== */
.proof-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center;margin-top:22px}
.proof-shot{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:0 20px 60px rgba(0,0,0,.5)}
.proof-shot img{width:100%}
.shot-tag{position:absolute;left:12px;bottom:12px;background:rgba(0,0,0,.7);color:#fff;font-size:12px;padding:4px 10px;border-radius:8px;border:1px solid var(--line)}
.proof-stats{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:18px}
.pstat{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px}
.pstat-num{font-size:30px;font-weight:800;color:var(--gold)}
.pstat-label{font-size:13px;color:var(--muted)}
.check-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.check-list li{position:relative;padding-left:26px;font-size:14px;color:#cdd6e8}
.check-list li:before{content:"✓";position:absolute;left:0;top:0;color:var(--good);font-weight:800}
@media(max-width:820px){.proof-grid{grid-template-columns:1fr}}

/* ===== 引擎三段 ===== */
.engine{display:flex;align-items:stretch;gap:12px;margin-top:30px;flex-wrap:wrap}
.engine-stage{flex:1;min-width:200px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px;text-align:center}
.engine-ico{font-size:40px;margin-bottom:10px}
.engine-stage p{color:var(--muted);font-size:14px;margin:0}
.engine-arrow{display:flex;align-items:center;font-size:26px;color:var(--accent)}
@media(max-width:820px){.engine-arrow{transform:rotate(90deg)}}

/* ===== 内容工厂 ===== */
.pipeline{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin:28px 0}
.pipe-step{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px 14px;position:relative}
.pipe-n{width:30px;height:30px;border-radius:50%;background:var(--grad);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:10px}
.pipe-step h4{font-size:15px;margin:0 0 6px}
.pipe-step p{font-size:12.5px;color:var(--muted);margin:0}
@media(max-width:900px){.pipeline{grid-template-columns:1fr 1fr}}
.compare{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.compare-title{font-weight:700;margin-bottom:14px}
.compare-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;padding:12px 14px;border-radius:10px;margin-bottom:8px;align-items:center}
.compare-row.warn{background:rgba(245,158,11,.08);border:1px solid rgba(245,158,11,.25)}
.compare-row.good{background:rgba(34,197,94,.09);border:1px solid rgba(34,197,94,.3)}
.cr-cost{font-weight:800;font-size:18px}
.cr-speed{color:var(--muted);font-size:13px;text-align:right}

/* ===== 矩阵图 ===== */
.matrix-graph{display:flex;flex-direction:column;align-items:center;gap:16px;margin:30px 0;position:relative}
.mx-node{background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:10px 20px;font-weight:600;font-size:14px}
.mx-mother{background:var(--grad);border:0;color:#fff;font-size:16px;padding:12px 28px;box-shadow:0 8px 24px rgba(79,140,255,.35)}
.mx-children{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.mx-children .mx-node{opacity:0;transform:translateY(-10px);transition:.5s}
.matrix-graph.in .mx-children .mx-node{opacity:1;transform:none}
.matrix-graph.in .mx-children .mx-node:nth-child(2){transition-delay:.1s}
.matrix-graph.in .mx-children .mx-node:nth-child(3){transition-delay:.2s}
.matrix-graph.in .mx-children .mx-node:nth-child(4){transition-delay:.3s}
.mx-platforms{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.mx-platforms span{font-size:12px;color:var(--muted);border:1px dashed var(--line);border-radius:8px;padding:5px 12px}
.mx-pool{background:rgba(245,185,66,.12);border:1px solid rgba(245,185,66,.4);color:var(--gold);font-weight:700;padding:10px 24px;border-radius:10px}
.layers{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:10px}
.layer{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px}
.layer b{display:block;margin-bottom:6px;font-size:14px}
.layer span{color:var(--muted);font-size:13px}
@media(max-width:820px){.layers{grid-template-columns:1fr}}

/* ===== 变现链 ===== */
.chain{display:flex;align-items:stretch;gap:8px;margin:26px 0;flex-wrap:wrap}
.chain-item{flex:1;min-width:180px;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px}
.chain-step{font-weight:700;margin-bottom:6px}
.chain-desc{color:var(--muted);font-size:13px}
.chain-arrow{display:flex;align-items:center;color:var(--warn)}
.risk-banner{background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.4);color:#ffb4b4;border-radius:12px;padding:14px 18px;font-weight:600;margin-top:6px}
.alt-note{margin-top:14px;color:#a9e8c4;background:rgba(34,197,94,.08);border:1px solid rgba(34,197,94,.25);border-radius:12px;padding:14px 18px;font-size:14px}
@media(max-width:820px){.chain-arrow{transform:rotate(90deg);justify-content:center}}

/* ===== 投入表 ===== */
.invest-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px}
.invest-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.cost-table{width:100%;border-collapse:collapse;margin-top:10px}
.cost-table td{padding:11px 6px;border-bottom:1px solid var(--line);font-size:14px}
.cost-table td.num{text-align:right;font-weight:700;white-space:nowrap}
.cost-table tr.total td{border-bottom:0;border-top:2px solid rgba(255,255,255,.18);color:var(--gold);font-size:16px;padding-top:14px}
@media(max-width:820px){.invest-grid{grid-template-columns:1fr}}

/* ===== ROI 计算器 ===== */
.roi-presets{display:flex;align-items:center;gap:10px;margin-bottom:18px;color:var(--muted);font-size:14px}
.preset{background:var(--panel);border:1px solid var(--line);color:var(--text);border-radius:999px;padding:7px 18px;cursor:pointer;font-size:14px;transition:.2s}
.preset:hover{border-color:var(--accent)}
.preset.active{background:var(--grad);border:0;color:#fff}
.roi-body{display:grid;grid-template-columns:380px 1fr;gap:24px}
.roi-inputs{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.slider{margin-bottom:16px}
.slider-head{display:flex;justify-content:space-between;font-size:13.5px;margin-bottom:6px}
.slider-head .val{font-weight:800;color:var(--accent)}
.slider input[type=range]{width:100%;accent-color:var(--accent);height:4px}
.roi-output{display:flex;flex-direction:column;gap:16px}
.roi-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.kpi{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px;text-align:center}
.kpi.hl{background:linear-gradient(160deg,rgba(79,140,255,.14),rgba(168,85,247,.1));border-color:rgba(79,140,255,.4)}
.kpi-num{font-size:22px;font-weight:800}
.kpi-label{font-size:12px;color:var(--muted);margin-top:4px}
.roi-chart{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;flex:1;min-height:260px;position:relative}
@media(max-width:900px){.roi-body{grid-template-columns:1fr}.roi-kpis{grid-template-columns:repeat(2,1fr)}}

/* ===== 时间轴 ===== */
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.tl-phase{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;position:relative;overflow:hidden}
.tl-phase:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad)}
.tl-days{font-size:13px;color:var(--accent);font-weight:700;margin-bottom:6px}
.tl-phase ul{margin:10px 0 0;padding-left:18px;color:var(--muted);font-size:14px}
.tl-phase li{margin-bottom:6px}
@media(max-width:820px){.timeline{grid-template-columns:1fr}}

/* ===== 风险表 ===== */
.risk-table{width:100%;border-collapse:collapse;margin-top:22px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.risk-table th{text-align:left;padding:14px 18px;background:rgba(255,255,255,.04);font-size:14px}
.risk-table td{padding:14px 18px;border-top:1px solid var(--line);font-size:14px;color:#cdd6e8;vertical-align:top}
.risk-cell{color:#ffc9c9;width:42%}

/* ===== CTA ===== */
.cta .hero-bg,.cta{position:relative}
.cta:before{content:"";position:absolute;inset:0;background:radial-gradient(60% 60% at 50% 40%,rgba(168,85,247,.18),transparent 65%);z-index:-1}
.cta-steps{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin:26px 0}
.cta-step{display:flex;align-items:center;gap:10px;background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:10px 20px;font-size:14px}
.cta-n{width:24px;height:24px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px}
.btn-cta{border:0;cursor:pointer;background:var(--grad);color:#fff;font-size:17px;font-weight:700;padding:16px 44px;border-radius:999px;box-shadow:0 12px 40px rgba(79,140,255,.45);transition:.2s}
.btn-cta:hover{transform:translateY(-2px)}

/* ===== 附录 ===== */
.src-list{color:var(--muted);font-size:14px;line-height:2;padding-left:20px;margin-top:16px}

/* ===== 账号深度剖析 ===== */
.dd-metrics{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin:24px 0 8px}
.dd-metrics .pstat{text-align:center}
.dd-metrics .pstat-num{font-size:clamp(20px,2.4vw,28px)}
@media(max-width:900px){.dd-metrics{grid-template-columns:repeat(3,1fr)}}
@media(max-width:520px){.dd-metrics{grid-template-columns:repeat(2,1fr)}}

.dd-chart-wrap{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;height:340px;margin:22px 0}
.dd-two{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.dd-callout{background:linear-gradient(160deg,rgba(79,140,255,.14),rgba(168,85,247,.08));border:1px solid rgba(79,140,255,.35);border-radius:var(--radius);padding:22px}
.dd-big{font-size:52px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.dd-big-label{color:#cdd6e8;font-size:14px;margin:8px 0 14px}
.dd-engage{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.engage-row{display:grid;grid-template-columns:auto auto 1fr;gap:10px;align-items:baseline;padding:11px 0;border-bottom:1px solid var(--line)}
.engage-row:last-child{border-bottom:0}
.er-k{font-weight:700;font-size:14px}
.er-v{color:var(--gold);font-weight:800;white-space:nowrap}
.er-note{color:var(--muted);font-size:13px;text-align:right}
@media(max-width:820px){.dd-two{grid-template-columns:1fr}.engage-row{grid-template-columns:1fr auto}.er-note{grid-column:1/-1;text-align:left}}

.series-box{display:grid;grid-template-columns:220px 1fr;gap:26px;align-items:center;margin-top:24px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.series-ring{width:180px;height:180px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;margin:0 auto;
  background:conic-gradient(#4f8cff 0 60%,rgba(255,255,255,.08) 60% 100%)}
.series-ring span{font-size:40px;font-weight:900}
.series-ring small{color:#cdd6e8;font-size:13px}
.ep-row{display:grid;grid-template-columns:130px 1fr 64px;gap:10px;align-items:center;margin-bottom:12px}
.ep-name{font-size:13.5px;color:#cdd6e8}
.ep-bar{height:12px;background:rgba(255,255,255,.06);border-radius:6px;overflow:hidden}
.ep-bar span{display:block;height:100%;background:var(--grad)}
.ep-v{text-align:right;font-weight:700;font-size:14px}
.ep-note{color:var(--muted);font-size:13px;margin:10px 0 0}
@media(max-width:640px){.series-box{grid-template-columns:1fr}}

.playbook-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:24px}
.pb-card{display:flex;gap:14px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px}
.pb-ico{font-size:30px;flex-shrink:0}
.pb-module{font-weight:800;font-size:16px;margin-bottom:3px}
.pb-how{color:#cdd6e8;font-size:14px;margin-bottom:8px}
.pb-ev{color:#a9e8c4;font-size:12.5px;background:rgba(34,197,94,.08);border:1px solid rgba(34,197,94,.22);border-radius:8px;padding:6px 10px}
@media(max-width:820px){.playbook-grid{grid-template-columns:1fr}}

.repl-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}
.repl-item{display:flex;gap:14px;align-items:flex-start;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px}
.repl-n{width:28px;height:28px;flex-shrink:0;border-radius:8px;background:var(--grad);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center}
.repl-txt b{font-size:15px}
.repl-txt p{margin:3px 0 0;color:var(--muted);font-size:13px}
@media(max-width:820px){.repl-grid{grid-template-columns:1fr}}

.mx-reach{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;margin:30px 0}
.mxr{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px 26px;text-align:center;min-width:170px}
.mxr.hl{background:linear-gradient(160deg,rgba(245,185,66,.16),rgba(168,85,247,.1));border-color:rgba(245,185,66,.4)}
.mxr-num{font-size:34px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.mxr.hl .mxr-num{background:linear-gradient(120deg,#f5b942,#a855f7);-webkit-background-clip:text;background-clip:text}
.mxr-l{color:var(--muted);font-size:13px;margin-top:4px}
.mxr-plus{font-size:30px;color:var(--muted);font-weight:800}

/* ===== 互动构成 + 基准 + 命中率 ===== */
.dd-strip{display:grid;grid-template-columns:1.4fr 1fr;gap:16px;margin-top:16px}
.dd-comp,.dd-bench{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.dc-t,.db-t{display:block;font-size:12px;color:var(--muted);letter-spacing:.05em;margin-bottom:10px}
.dc-item{display:inline-block;margin-right:16px;font-size:14px;color:#cdd6e8}
.dc-item b{color:#fff;font-size:16px}
.dc-note{display:block;margin-top:10px;font-size:12.5px;color:var(--gold)}
.bench-bar{position:relative;height:12px;background:rgba(255,255,255,.06);border-radius:6px;margin:6px 0 10px}
.bench-fill{position:absolute;left:0;top:0;bottom:0;background:var(--grad);border-radius:6px}
.bench-mark{position:absolute;top:-3px;width:2px;height:18px;background:var(--gold)}
.db-note{font-size:13px;color:#cdd6e8}
.db-note b{color:var(--good)}
@media(max-width:820px){.dd-strip{grid-template-columns:1fr}}

.hit-callout{display:flex;align-items:center;gap:20px;flex-wrap:wrap;background:linear-gradient(160deg,rgba(245,185,66,.12),rgba(168,85,247,.08));border:1px solid rgba(245,185,66,.35);border-radius:var(--radius);padding:20px 24px;margin:22px 0}
.hit-item{text-align:center}
.hit-num{font-size:40px;font-weight:900;background:linear-gradient(120deg,#f5b942,#a855f7);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.hit-l{font-size:12.5px;color:var(--muted);margin-top:4px}
.hit-text{flex:1;min-width:240px;font-size:14px;color:#e8edf7}
.hit-note{color:var(--muted);font-size:12px}

/* ===== 章节 eyebrow / 分章配色 ===== */
.chap-eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:13px;font-weight:700;letter-spacing:.05em;
  color:var(--chap,#4f8cff);border:1px solid color-mix(in srgb, var(--chap,#4f8cff) 45%, transparent);
  background:color-mix(in srgb, var(--chap,#4f8cff) 12%, transparent);padding:6px 14px 6px 6px;border-radius:999px;margin-bottom:16px}
.chap-eyebrow .ce-no{width:22px;height:22px;border-radius:50%;background:var(--chap,#4f8cff);color:#08101f;font-weight:900;font-size:13px;display:flex;align-items:center;justify-content:center}
.chap-eyebrow.chap-first{font-size:15px;padding:8px 18px 8px 8px}
.chap-eyebrow.chap-first .ce-no{width:26px;height:26px;font-size:15px}
.sub-kicker{display:inline-block;font-size:12.5px;color:var(--muted);margin:0 0 10px;padding:3px 10px;border:1px solid var(--line);border-radius:8px}
.sub-kicker.warn{color:var(--warn);border-color:rgba(245,158,11,.4)}
.screen h2{border-left:3px solid transparent}
.screen[data-chap] h2{border-left:4px solid var(--chap,#4f8cff);padding-left:14px}

/* ===== 目录按钮 + 抽屉 ===== */
.toc-btn{position:fixed;top:14px;left:16px;z-index:61;border:1px solid var(--line);background:rgba(14,19,32,.85);backdrop-filter:blur(6px);color:var(--text);font-size:13px;font-weight:600;padding:8px 14px;border-radius:999px;cursor:pointer}
.toc-btn:hover{border-color:var(--accent)}
.toc-overlay{position:fixed;inset:0;z-index:70;background:rgba(4,7,13,.6);backdrop-filter:blur(4px);display:flex}
.toc-overlay[hidden]{display:none}
.toc-panel{width:320px;max-width:82vw;height:100%;overflow:auto;background:#0e1320;border-right:1px solid var(--line);padding:24px 20px;box-shadow:0 0 60px rgba(0,0,0,.6);animation:tocIn .22s ease}
@keyframes tocIn{from{transform:translateX(-16px);opacity:.4}to{transform:none;opacity:1}}
.toc-title{font-size:15px;font-weight:800;color:var(--muted);margin-bottom:16px;letter-spacing:.1em}
.toc-chap{margin-bottom:14px;border-left:3px solid var(--chap);padding-left:12px}
.toc-chap-h{display:flex;align-items:center;gap:10px;font-weight:800;font-size:15px;cursor:pointer;margin-bottom:6px}
.toc-chap-h:hover{color:var(--chap)}
.toc-no{width:22px;height:22px;border-radius:50%;background:var(--chap);color:#08101f;font-weight:900;font-size:13px;display:flex;align-items:center;justify-content:center}
.toc-sub{display:block;font-size:13.5px;color:var(--muted);padding:4px 0 4px 32px;cursor:pointer;text-decoration:none}
.toc-sub:hover{color:var(--text)}
.dots button.active{background:var(--chap,#4f8cff);box-shadow:0 0 0 4px color-mix(in srgb, var(--chap,#4f8cff) 22%, transparent)}

/* ===== 身份卡 ===== */
.identity-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center;margin-top:20px}
.identity-side .id-name{font-size:30px;font-weight:900}
.identity-side .id-tagline{color:var(--chap,#4f8cff);font-size:14px;margin-bottom:14px}
.id-facts{display:grid;grid-template-columns:1fr 1fr;gap:8px 18px;margin-bottom:16px}
.id-fact{display:flex;justify-content:space-between;gap:10px;padding:8px 0;border-bottom:1px solid var(--line);font-size:13.5px}
.id-fact span{color:var(--muted)}
.id-fact b{text-align:right}
@media(max-width:820px){.identity-grid{grid-template-columns:1fr}.id-facts{grid-template-columns:1fr}}

/* ===== 能力地图 ===== */
.capmap{margin-top:22px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.capmap-head,.capmap-row{display:grid;grid-template-columns:1.1fr 1.4fr 1.8fr 1.4fr;gap:1px}
.capmap-head{background:rgba(255,255,255,.05);font-weight:700;font-size:13px;color:var(--muted)}
.capmap-head span{padding:12px 14px}
.capmap-row{border-top:1px solid var(--line)}
.capmap-row span{padding:14px;font-size:13.5px;background:var(--panel)}
.cm-stage{font-weight:800;color:var(--chap,#4f8cff)}
.cm-ours{background:color-mix(in srgb, var(--chap,#4f8cff) 8%, var(--panel)) !important;color:#dbe6ff}
.cm-action{color:#a9e8c4;font-weight:600}
@media(max-width:900px){
  .capmap-head{display:none}
  .capmap-row{grid-template-columns:1fr;gap:0}
  .capmap-row span{border-bottom:1px solid var(--line)}
  .cm-stage{font-size:15px}
  .cm-mccoy:before{content:'McCoy：';color:var(--muted)}
  .cm-ours:before{content:'我们：';color:var(--muted)}
}

/* ===== 复刻链路 flow ===== */
.flowline{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:26px 0 14px}
.flow-step{background:var(--panel);border:1px solid color-mix(in srgb, var(--chap,#4f8cff) 40%, var(--line));border-radius:12px;padding:14px 18px;font-weight:600;font-size:14px}
.flow-arrow{color:var(--chap,#4f8cff);font-size:22px;font-weight:800}
.flow-note{color:#a9e8c4;background:rgba(34,197,94,.08);border:1px solid rgba(34,197,94,.25);border-radius:12px;padding:12px 16px;font-size:14px;display:inline-block}
@media(max-width:720px){.flow-arrow{transform:rotate(90deg)}.flowline{flex-direction:column;align-items:stretch}}
.amplify{display:grid;grid-template-columns:180px 1fr;gap:24px;align-items:center;margin-top:26px;background:linear-gradient(160deg,color-mix(in srgb,var(--chap,#ec4899) 16%,transparent),rgba(168,85,247,.08));border:1px solid color-mix(in srgb,var(--chap,#ec4899) 40%,transparent);border-radius:var(--radius);padding:24px}
.amp-big{font-size:72px;font-weight:900;text-align:center;background:linear-gradient(120deg,var(--chap,#ec4899),#a855f7);-webkit-background-clip:text;background-clip:text;color:transparent}
.amp-body h3{margin:0 0 10px}
@media(max-width:720px){.amplify{grid-template-columns:1fr}}

/* ===== 通用小字 ===== */
@media(max-width:560px){.screen{padding:72px 18px}.toc-btn{top:auto;bottom:22px;left:16px}}