:root{
  --ink:#20242b;--ink-2:#2b3039;--paper:#f6f1e7;--paper-2:#eee6d7;--paper-3:#e7ddcb;
  --muted:#6f6a61;--rose:#a7585c;--rose-2:#c27b79;--gold:#b28a55;--blue:#6f8290;
  --line:rgba(48,44,38,.16);--serif:"Songti SC","Noto Serif SC","STSong","SimSun",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--serif);font-size:17px;line-height:1.95;-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%}
.skip{position:absolute;left:-9999px;top:0}
.skip:focus{left:16px;top:12px;z-index:99;background:var(--ink);color:var(--paper);padding:8px 12px}
.wrap{max-width:1120px;margin:0 auto;padding:0 28px}
.narrow{max-width:780px;margin:0 auto;padding:0 28px}
/* header */
.site-header{position:sticky;top:0;z-index:40;background:rgba(246,241,231,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:78px}
.brand{display:flex;align-items:center;gap:13px;text-decoration:none}
.brand-mark{width:42px;height:42px;flex:0 0 auto}
.brand strong{display:block;font-family:var(--serif);font-size:22px;font-weight:600;letter-spacing:.08em;line-height:1.2}
.brand small{display:block;font-family:var(--sans);font-size:9px;letter-spacing:.22em;color:var(--muted);margin-top:2px}
.site-nav{display:flex;align-items:center;gap:30px;font-family:var(--sans);font-size:12px;letter-spacing:.08em}
.site-nav a{text-decoration:none;color:var(--ink-2);position:relative}
.site-nav a:hover{color:var(--rose)}
.menu-toggle{display:none;background:none;border:1px solid var(--line);font:inherit;font-family:var(--sans);font-size:11px;letter-spacing:.12em;padding:10px 15px;color:var(--ink)}
/* hero */
.hero{background:var(--ink);color:var(--paper);overflow:hidden}
.hero-inner{min-height:calc(100svh - 78px);display:grid;grid-template-columns:1.12fr .88fr;align-items:center;gap:30px;padding-top:52px;padding-bottom:52px}
.hero-kicker{font-family:var(--sans);font-size:10px;letter-spacing:.28em;color:var(--gold);margin:0 0 22px}
.hero h1{font-family:var(--serif);font-weight:500;font-size:clamp(72px,10vw,132px);line-height:1.02;letter-spacing:.04em;margin:0 0 18px}
.hero-sub{font-family:var(--serif);font-size:clamp(22px,2.6vw,30px);letter-spacing:.06em;color:var(--paper-2);margin:0 0 12px}
.hero-deck{font-family:var(--sans);font-size:11px;letter-spacing:.18em;color:var(--rose-2);margin:0 0 30px}
.hero-quote{font-family:var(--serif);font-size:15px;color:#d8cdbb;border-left:1px solid var(--gold);padding-left:16px;margin:0 0 32px;line-height:1.9}
.hero-quote small{display:block;font-family:var(--sans);font-size:10px;letter-spacing:.1em;color:#928878;margin-top:4px}
.hero-actions{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 22px;border:1px solid var(--gold);text-decoration:none;font-family:var(--sans);font-size:12px;letter-spacing:.08em;color:var(--paper);background:transparent}
.btn:hover{background:var(--gold);color:var(--ink)}
.btn.solid{background:var(--rose);border-color:var(--rose);color:#fff}
.btn.solid:hover{background:#8d464a;border-color:#8d464a}
.hero-art{position:relative;min-height:400px}
.orbit{width:100%;height:auto;display:block}
.orbit text{font-family:var(--sans);font-size:11px;fill:#cfc3ae;letter-spacing:1px}
.orbit .layer{fill:none;stroke:rgba(196,160,112,.55);stroke-width:1.1}
.orbit .hot{stroke:rgba(193,112,115,.9);stroke-width:1.4}
.orbit circle{fill:var(--rose)}
.hero-note{font-family:var(--sans);font-size:10px;letter-spacing:.08em;color:#8f877b;margin-top:10px;text-align:right}
/* generic section */
.section{padding:80px 0}
.section-head{display:flex;justify-content:space-between;align-items:baseline;gap:20px;border-top:1px solid var(--line);padding-top:18px;margin-bottom:30px}
.section-head h2{font-family:var(--serif);font-size:32px;font-weight:500;letter-spacing:.02em;margin:0}
.section-head span{font-family:var(--sans);font-size:10px;letter-spacing:.18em;color:var(--muted)}
.lead{font-size:17px;line-height:2;color:var(--ink-2);max-width:46em}
.muted{color:var(--muted)}
.serif{font-family:var(--serif)}
/* six layers */
.layers{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin:28px 0 0}
.layer{background:var(--paper);padding:18px 14px;min-height:118px}
.layer b{display:block;font-family:var(--serif);font-size:19px;font-weight:500;margin-bottom:5px}
.layer span{font-family:var(--sans);font-size:10px;color:var(--muted);line-height:1.7}
/* parts */
.part-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px}
.part-card{display:block;text-decoration:none;background:#fffaf1;border:1px solid var(--line);padding:22px;min-height:180px;position:relative;transition:.2s}
.part-card:hover{border-color:var(--rose);transform:translateY(-2px)}
.part-card em{display:block;font-family:var(--sans);font-style:normal;font-size:10px;letter-spacing:.16em;color:var(--rose);margin-bottom:12px}
.part-card h3{font-family:var(--serif);font-size:24px;font-weight:500;margin:0 0 8px}
.part-card p{font-family:var(--sans);font-size:12px;line-height:1.8;color:var(--muted);margin:0}
.part-card i{position:absolute;right:18px;bottom:14px;font-family:var(--serif);font-style:normal;font-size:34px;color:rgba(167,88,92,.28)}
/* excerpt */
.excerpt{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;align-items:start}
.excerpt .quote{font-family:var(--serif);font-size:26px;line-height:1.75;color:var(--ink);border-left:2px solid var(--rose);padding-left:22px}
.excerpt .quote small{display:block;font-family:var(--sans);font-size:10px;color:var(--muted);margin-top:10px}
/* footer */
.site-footer{background:var(--ink);color:#d8cdbb;padding:56px 0 26px;margin-top:30px}
.footer-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr;gap:40px}
.footer-brand strong{display:block;font-family:var(--serif);font-size:24px;font-weight:500;letter-spacing:.08em;color:var(--paper)}
.footer-brand p{font-family:var(--sans);font-size:11px;line-height:1.9;color:#9d9487;max-width:34em}
.footer-col h4{font-family:var(--sans);font-size:10px;letter-spacing:.18em;color:var(--gold);margin:0 0 12px}
.footer-col a,.footer-col p{display:block;font-family:var(--sans);font-size:11px;line-height:2;color:#c9c0b1;text-decoration:none;margin:0}
.footer-col a:hover{color:#fff}
.footer-bottom{margin-top:34px;padding-top:16px;border-top:1px solid rgba(226,215,198,.15);display:flex;justify-content:space-between;gap:16px;font-family:var(--sans);font-size:10px;color:#8f877a}
/* contents */
.page-hero{padding:66px 0 34px;border-bottom:1px solid var(--line)}
.page-hero .kicker{font-family:var(--sans);font-size:10px;letter-spacing:.22em;color:var(--rose);margin:0 0 12px}
.page-hero h1{font-family:var(--serif);font-size:clamp(38px,5.2vw,64px);font-weight:500;line-height:1.25;margin:0 0 10px}
.page-hero p{font-family:var(--sans);font-size:13px;line-height:1.9;color:var(--muted);max-width:44em;margin:0}
.search-bar{display:flex;gap:12px;align-items:center;margin:26px 0 0;flex-wrap:wrap}
.search-bar input{flex:1;min-width:240px;max-width:460px;padding:11px 14px;border:1px solid var(--line);background:#fffaf1;color:var(--ink);font:inherit;font-family:var(--sans);font-size:13px}
.search-bar span{font-family:var(--sans);font-size:11px;color:var(--muted)}
.part-block{padding:34px 0;border-bottom:1px solid var(--line)}
.part-block h2{font-family:var(--serif);font-size:28px;font-weight:500;margin:0 0 4px}
.part-block .part-meta{font-family:var(--sans);font-size:10px;letter-spacing:.14em;color:var(--rose);margin:0 0 18px}
.chapter-list{list-style:none;margin:0;padding:0}
.chapter-list li a{display:grid;grid-template-columns:52px 1fr auto;gap:16px;align-items:baseline;padding:14px 0;border-top:1px solid rgba(48,44,38,.1);text-decoration:none}
.chapter-list li a:hover .ch-title{color:var(--rose)}
.ch-no{font-family:var(--sans);font-size:11px;color:var(--rose)}
.ch-title{font-family:var(--serif);font-size:19px;line-height:1.5}
.ch-title small{display:block;font-family:var(--sans);font-size:11px;color:var(--muted);margin-top:2px}
.ch-time{font-family:var(--sans);font-size:10px;color:var(--muted);white-space:nowrap}
.is-read .ch-title::after{content:" · 已读";font-family:var(--sans);font-size:9px;color:var(--rose)}
/* part page */
.part-hero{padding:64px 0 30px;background:var(--ink);color:var(--paper)}
.part-hero .kicker{font-family:var(--sans);font-size:10px;letter-spacing:.22em;color:var(--gold);margin:0 0 12px}
.part-hero h1{font-family:var(--serif);font-size:clamp(40px,6vw,72px);font-weight:500;margin:0 0 14px}
.part-hero .part-intro{font-family:var(--serif);font-size:16px;line-height:2;color:#d8cdbb;max-width:44em}
.part-sections{padding:36px 0 70px}
/* reader */
.reader-bar{position:sticky;top:78px;z-index:30;background:rgba(246,241,231,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.reader-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;height:46px;font-family:var(--sans);font-size:11px;color:var(--muted)}
.reader-inner a{text-decoration:none;color:var(--ink-2)}
.reader-inner a:hover{color:var(--rose)}
.reader-pos{letter-spacing:.12em;color:var(--rose)}
.breadcrumbs{padding:18px 0 0;font-family:var(--sans);font-size:10px;color:var(--muted)}
.breadcrumbs a{text-decoration:none;color:var(--muted)}
.breadcrumbs span{margin:0 7px;color:var(--line)}
.article{padding:32px 0 20px}
.article .kicker{font-family:var(--sans);font-size:10px;letter-spacing:.2em;color:var(--rose);margin:0 0 12px}
.article h1{font-family:var(--serif);font-size:clamp(36px,5.6vw,58px);font-weight:500;line-height:1.3;margin:0 0 12px;letter-spacing:.02em}
.article .subtitle{font-family:var(--serif);font-size:19px;color:var(--muted);margin:0 0 18px}
.article .byline{font-family:var(--sans);font-size:10px;letter-spacing:.05em;color:var(--muted);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:10px 0;margin:0 0 30px}
.article p{font-family:var(--serif);font-size:18px;line-height:2.05;margin:0 0 18px}
.article h3{font-family:var(--serif);font-size:23px;font-weight:500;line-height:1.5;margin:34px 0 10px;color:var(--ink)}
.article h3:before{content:"";display:inline-block;width:18px;height:1px;background:var(--rose);vertical-align:middle;margin-right:10px}
.article sup{font-family:var(--sans);font-size:9px;line-height:0}
.article sup a{color:var(--rose);text-decoration:none}
.article blockquote{border-left:2px solid var(--gold);margin:26px 0;padding:0 0 0 18px;color:var(--muted);font-size:16px}
.article table{width:100%;border-collapse:collapse;margin:22px 0;font-family:var(--sans);font-size:12px;line-height:1.7}
.article th,.article td{border:1px solid var(--line);padding:9px 10px;text-align:left;vertical-align:top}
.article th{background:var(--paper-2);font-weight:500}
.article .table-wrap{overflow-x:auto}
.article .refs{margin-top:38px;border-top:1px solid var(--line);padding-top:16px}
.article .refs h2{font-family:var(--serif);font-size:18px;font-weight:500;margin:0 0 8px}
.article .refs ol{padding-left:20px;font-family:var(--sans);font-size:11px;line-height:1.8;color:var(--muted)}
.article .refs li{margin-bottom:6px}
.finish{display:inline-block;margin:28px 0 0;padding:10px 18px;border:1px solid var(--rose);background:transparent;color:var(--rose);font-family:var(--sans);font-size:12px;cursor:pointer}
.finish:disabled{opacity:.55;cursor:default}
.reader-nav{display:grid;grid-template-columns:1fr auto 1fr;gap:18px;border-top:1px solid var(--line);margin-top:34px;padding:20px 0 10px;font-family:var(--sans);font-size:11px}
.reader-nav a{text-decoration:none;color:var(--muted)}
.reader-nav a:hover{color:var(--rose)}
.reader-nav .center{text-align:center}
/* appendix */
.appendix-table{margin:20px 0 34px;overflow-x:auto}
.appendix-table table{width:100%;border-collapse:collapse;font-family:var(--sans);font-size:11px;line-height:1.7}
.appendix-table th,.appendix-table td{border:1px solid var(--line);padding:8px;text-align:left;vertical-align:top;min-width:90px}
.appendix-table th{background:var(--paper-2)}
.appendix-table td:empty{height:26px}
/* references */
.ref-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.ref-list li{padding:12px 0;border-bottom:1px solid rgba(48,44,38,.1);font-family:var(--sans);font-size:12px;line-height:1.9;color:var(--ink-2)}
.ref-list .num{color:var(--rose);margin-right:8px}
/* share */
.share-fab{position:fixed;right:20px;bottom:22px;z-index:45;display:flex;align-items:center;gap:8px;border:1px solid var(--rose);background:var(--rose);color:#fff;font-family:var(--sans);font-size:11px;padding:10px 15px;cursor:pointer;box-shadow:0 8px 24px rgba(32,36,43,.16)}
.share-fab svg{width:16px;height:16px}
.share-mask{position:fixed;inset:0;z-index:60;background:rgba(26,26,24,.5);display:flex;align-items:center;justify-content:center;padding:20px}
.share-mask[hidden]{display:none}
.share-panel{background:var(--paper);border:1px solid var(--line);max-width:360px;width:100%;padding:26px;position:relative;text-align:center}
.share-x{position:absolute;right:10px;top:6px;border:0;background:none;font-size:22px;color:var(--muted);cursor:pointer}
.share-panel h3{font-family:var(--serif);font-size:22px;font-weight:500;margin:0 0 16px}
.share-acts{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.share-acts button{font-family:var(--sans);font-size:11px;padding:9px 13px;border:1px solid var(--ink);background:var(--ink);color:var(--paper);cursor:pointer}
.share-acts button.secondary{background:transparent;color:var(--ink)}
.share-tip{font-family:var(--sans);font-size:10px;line-height:1.8;color:var(--muted);margin:14px 0 0}
/* print */
@media print{.site-header,.reader-bar,.share-fab,.site-footer,.reader-nav,.finish{display:none!important}body{background:#fff}.article p{font-size:11pt}}
/* tablet/mobile */
@media(max-width:980px){
 .hero-inner{grid-template-columns:1fr;min-height:0;padding-top:56px;padding-bottom:56px}
 .hero-art{max-width:520px;margin:10px auto 0;min-height:0}
 .hero h1{font-size:clamp(64px,15vw,108px)}
 .part-grid{grid-template-columns:1fr 1fr}
 .excerpt{grid-template-columns:1fr;gap:26px}
 .footer-grid{grid-template-columns:1fr 1fr}
 .footer-brand{grid-column:1/-1}
 .layers{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:680px){
 .wrap,.narrow{padding:0 18px}
 .header-inner{height:64px}
 .brand-mark{width:34px;height:34px}
 .brand strong{font-size:19px}.brand small{font-size:8px}
 .menu-toggle{display:block}
 .site-nav{display:none;position:absolute;left:0;right:0;top:64px;background:var(--paper);border-bottom:1px solid var(--line);padding:16px 18px;flex-direction:column;align-items:flex-start;gap:14px}
 .site-nav.open{display:flex}
 .hero-inner{padding-top:42px;padding-bottom:36px}
 .hero h1{font-size:clamp(58px,17vw,84px);letter-spacing:.02em}
 .hero-sub{font-size:21px;line-height:1.5}
 .hero-quote{font-size:14px}
 .hero-art{max-width:360px}
 .hero-note{text-align:left}
 .section{padding:54px 0}
 .section-head h2{font-size:26px}
 .section-head span{display:none}
 .layers{grid-template-columns:1fr 1fr}
 .layer{min-height:96px;padding:14px 12px}
 .part-grid{grid-template-columns:1fr;gap:10px}
 .part-card{min-height:0;padding:18px}
 .part-card h3{font-size:22px}
 .excerpt .quote{font-size:22px}
 .reader-bar{top:64px}
 .reader-inner{height:42px;font-size:10px}
 .article{padding-top:24px}
 .article h1{font-size:34px;line-height:1.32}
 .article .subtitle{font-size:17px}
 .article p{font-size:16px;line-height:1.98}
 .article h3{font-size:21px;margin-top:28px}
 .article th,.article td{min-width:110px}
 .chapter-list li a{grid-template-columns:36px 1fr;gap:10px}
 .ch-time{display:none}
 .part-hero{padding:46px 0 24px}
 .reader-nav{grid-template-columns:1fr;gap:8px}
 .footer-grid{grid-template-columns:1fr;gap:24px}
 .footer-bottom{flex-direction:column;gap:6px}
 .share-fab{right:12px;bottom:14px;padding:9px 12px}
 .share-panel{padding:22px 18px}
}
@media(max-width:680px){.hero-art{display:none}.hero-inner{min-height:0;padding-top:36px;padding-bottom:40px}.hero-progress{text-align:left}}
.footer-qrs{display:flex;gap:14px;margin-top:14px}
.footer-qrs figure{margin:0;text-align:center}
.footer-qrs img{display:block;width:82px;height:82px;object-fit:cover;background:#fff;padding:3px}
.footer-qrs figcaption{font-family:var(--sans);font-size:9px;color:#8f877a;margin-top:5px;letter-spacing:.08em}
@media(max-width:680px){.footer-qrs img{width:74px;height:74px}}
/* visual layer */
.visual-section{background:linear-gradient(180deg,var(--paper) 0%,#f1eadf 100%)}
.visual-lead{max-width:46em;color:var(--ink-2);margin:0 0 10px}
.visual-note{font-family:var(--sans);font-size:10px;color:var(--muted);margin-top:14px}
.timeline{list-style:none;margin:46px 0 0;padding:0;display:grid;grid-template-columns:repeat(6,1fr);position:relative;min-height:220px}
.timeline:before{content:"";position:absolute;left:4%;right:4%;top:76px;height:1px;background:linear-gradient(90deg,rgba(111,130,144,.45),rgba(167,88,92,.65),rgba(178,138,85,.8));z-index:0}
.timeline-node{position:relative;padding:0 10px;text-align:left;z-index:1}
.t-dot{display:block;width:9px;height:9px;border-radius:50%;background:var(--paper);border:1px solid var(--rose);margin:71px 0 16px;position:relative;z-index:2}
.timeline-node:nth-child(2n) .t-dot{background:var(--rose)}
.timeline-node.before .t-dot{background:var(--blue);border-color:var(--blue)}
.t-time{display:block;font-family:var(--sans);font-size:9px;letter-spacing:.1em;color:var(--muted);margin-bottom:4px}
.timeline-node b{display:block;font-family:var(--serif);font-size:21px;font-weight:500;margin-bottom:3px}
.timeline-node small{display:block;font-family:var(--sans);font-size:10px;line-height:1.7;color:var(--muted)}
.timeline-scale{display:flex;justify-content:space-between;font-family:var(--sans);font-size:9px;color:var(--muted);border-top:1px solid var(--line);padding-top:8px;margin-top:-6px;letter-spacing:.06em}
/* layer explorer */
.layer-explorer{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:28px 0 34px;padding:18px 0 0}
.layer-explorer-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.layer-explorer-head span{font-family:var(--sans);font-size:10px;letter-spacing:.18em;color:var(--rose)}
.layer-explorer-head small{font-family:var(--sans);font-size:10px;color:var(--muted)}
.layer-tabs{display:grid;grid-template-columns:repeat(6,1fr);gap:0;margin:14px 0 0;border-top:1px solid var(--line)}
.layer-tab{appearance:none;border:0;border-right:1px solid var(--line);background:transparent;padding:13px 8px 12px;text-align:left;cursor:pointer;font-family:var(--sans);color:var(--ink);position:relative}
.layer-tab:last-child{border-right:0}
.layer-tab span{display:block;font-size:8px;color:var(--muted);letter-spacing:.1em}
.layer-tab b{display:block;font-family:var(--serif);font-size:17px;font-weight:500;margin:3px 0 2px}
.layer-tab em{display:block;font-style:normal;font-size:8px;color:var(--muted);line-height:1.5}
.layer-tab.active{background:var(--ink);color:var(--paper)}
.layer-tab.active span,.layer-tab.active em{color:#bdb3a3}
.layer-tab:hover:not(.active){background:var(--paper-2)}
.layer-panel{display:grid;grid-template-columns:60px 1fr;gap:4px 20px;padding:18px 0 20px;align-items:start}
.layer-count{grid-row:1 / span 2;font-family:var(--sans);font-size:9px;letter-spacing:.12em;color:var(--rose);margin:4px 0 0}
.layer-panel h3{font-family:var(--serif);font-size:25px;font-weight:500;margin:0;line-height:1.3}
.layer-panel .layer-copy{grid-column:2;font-family:var(--serif);font-size:14px;line-height:1.9;color:var(--ink-2);margin:4px 0 0;max-width:34em}
.layer-panel .layer-line{grid-column:2;font-family:var(--sans);font-size:10px;color:var(--muted);margin:2px 0 0}
.layer-panel .layer-line:before{content:"— ";color:var(--rose)}
/* reading map */
.part-map-wrap{margin:8px 0 34px;padding:18px 0 0;border-top:1px solid var(--line)}
.map-meta{display:flex;justify-content:space-between;font-family:var(--sans);font-size:10px;letter-spacing:.12em;color:var(--muted);margin-bottom:12px}
.map-meta em{font-style:normal;color:var(--rose)}
.reading-map{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin:0 0 30px}
.map-part{padding:10px 0 0;border-top:2px solid var(--c)}
.map-head{display:flex;align-items:baseline;justify-content:space-between;gap:4px}
.map-head a{text-decoration:none;display:flex;align-items:baseline;gap:6px;min-width:0}
.map-head span{font-family:var(--sans);font-size:8px;color:var(--muted)}
.map-head b{font-family:var(--serif);font-size:15px;font-weight:500;white-space:nowrap}
.map-head i{font-family:var(--sans);font-size:9px;font-style:normal;color:var(--muted)}
.map-dots{display:flex;flex-wrap:wrap;gap:5px;margin-top:9px}
.map-dots a{display:block;width:8px;height:8px;border:1px solid var(--c);border-radius:50%;background:transparent}
.map-dots a:hover{background:var(--c)}
.map-dots a.is-read{background:var(--c);border-color:var(--c)}
/* evidence + selfcheck */
.visual-caption{display:flex;justify-content:space-between;align-items:baseline;gap:12px;border-top:1px solid var(--line);padding-top:12px;margin-bottom:14px}
.visual-caption span{font-family:var(--sans);font-size:10px;letter-spacing:.18em;color:var(--rose)}
.visual-caption em{font-family:var(--sans);font-size:10px;font-style:normal;color:var(--muted)}
.evidence-map{border-top:1px solid var(--line)}
.evidence-row{display:grid;grid-template-columns:32px 1fr auto;align-items:center;gap:12px;padding:15px 0;border-bottom:1px solid var(--line)}
.evidence-mark{display:block;height:1px;width:100%;background:var(--ink);position:relative}
.evidence-row.solid .evidence-mark{height:3px}
.evidence-row.medium .evidence-mark{height:2px;background:var(--rose)}
.evidence-row.dashed .evidence-mark{height:1px;background:repeating-linear-gradient(90deg,var(--muted) 0 4px,transparent 4px 8px)}
.evidence-row b{display:block;font-family:var(--serif);font-size:17px;font-weight:500;margin-bottom:1px}
.evidence-row p{font-family:var(--sans);font-size:10px;color:var(--muted);margin:0;line-height:1.6}
.evidence-row em{font-family:var(--sans);font-size:9px;font-style:normal;color:var(--rose);white-space:nowrap}
.selfcheck{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:20px}
.check-step{padding:16px 14px 18px;border-right:1px solid var(--line)}
.check-step:last-child{border-right:0}
.check-step span{display:block;font-family:var(--sans);font-size:9px;color:var(--rose);letter-spacing:.1em}
.check-step b{display:block;font-family:var(--serif);font-size:16px;font-weight:500;margin:5px 0 3px}
.check-step p{font-family:var(--sans);font-size:10px;line-height:1.7;color:var(--muted);margin:0}
/* part accents */
.article{--accent:var(--rose)}
.article .kicker,.article sup a,.article .finish{color:var(--accent)}
.article h3:before{background:var(--accent)}
.article .finish{border-color:var(--accent)}
.part-hero .kicker{color:var(--accent,var(--gold))}
.part-card em,.part-card i{color:var(--accent)}
.part-card:hover{border-color:var(--accent)}
.part-card:hover h3{color:var(--accent)}
@media(max-width:980px){
 .timeline{grid-template-columns:repeat(3,1fr);gap:20px 0;min-height:0}
 .timeline:before{display:none}
 .t-dot{margin-top:0}
 .timeline-node{padding-left:0;border-top:1px solid var(--line);padding-top:12px}
 .timeline-scale{display:none}
 .reading-map{grid-template-columns:repeat(3,1fr);gap:16px 14px}
 .selfcheck{grid-template-columns:repeat(2,1fr)}
 .check-step:nth-child(2){border-right:0}
 .check-step:nth-child(-n+2){border-bottom:1px solid var(--line)}
}
@media(max-width:680px){
 .visual-section{padding-top:44px}
 .timeline{grid-template-columns:1fr;gap:0;margin-top:26px}
 .timeline-node{display:grid;grid-template-columns:16px 1fr;gap:0 10px;padding:13px 0;border-top:1px solid var(--line)}
 .t-dot{grid-row:1 / span 3;margin:5px 0 0;width:7px;height:7px}
 .t-time{grid-column:2}
 .timeline-node b{grid-column:2;font-size:19px}
 .timeline-node small{grid-column:2}
 .layer-tabs{display:flex;overflow-x:auto;scrollbar-width:none}
 .layer-tab{min-width:92px;border-bottom:0}
 .layer-panel{grid-template-columns:1fr;gap:2px}
 .layer-count{grid-row:auto}
 .layer-panel .layer-copy,.layer-panel .layer-line{grid-column:1}
 .reading-map{grid-template-columns:1fr 1fr;gap:14px 16px}
 .map-head b{font-size:14px}
 .selfcheck{grid-template-columns:1fr}
 .check-step{border-right:0;border-bottom:1px solid var(--line);padding:13px 0}
 .check-step:last-child{border-bottom:0}
 .evidence-row{grid-template-columns:22px 1fr;gap:10px}
 .evidence-row em{grid-column:2;justify-self:start}
 .visual-caption em{display:none}
}
.layer-panel{grid-template-columns:76px 1fr}
.layer-count{grid-column:1;grid-row:1;white-space:nowrap}
.layer-panel h3{grid-column:2;grid-row:1}
.layer-panel h3:before{display:none}
.layer-panel .layer-copy,.layer-panel .layer-line{grid-column:2}
@media(max-width:680px){.layer-panel{grid-template-columns:1fr}.layer-panel h3{grid-column:1}.layer-count{grid-column:1}}
/* photography */
.hero-photo{position:relative;margin:0;min-height:540px;overflow:hidden;background:#191d23}
.hero-photo img{display:block;width:100%;height:100%;min-height:540px;object-fit:cover;object-position:64% center;filter:saturate(.86) contrast(.97)}
.hero-photo:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(32,36,43,.72) 0%,rgba(32,36,43,.18) 30%,rgba(32,36,43,0) 55%,rgba(32,36,43,.26) 100%);pointer-events:none}
.hero-photo figcaption{position:absolute;right:14px;bottom:12px;z-index:2;font-family:var(--sans);font-size:9px;line-height:1.6;color:rgba(246,241,231,.72);text-align:right;max-width:22em}
.part-photo{max-width:1176px;margin:30px auto 0;padding:0 28px}
.part-photo img{display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}
.part-photo figcaption,.article-photo figcaption,.appendix-photo figcaption{font-family:var(--sans);font-size:10px;line-height:1.7;color:var(--muted);margin-top:8px;letter-spacing:.02em}
.article-photo{margin:26px 0 30px}
.article-photo img{display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}
.appendix-photo{max-width:1176px;margin:26px auto 0;padding:0 28px}
.appendix-photo img{display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}
.part-sections{padding-top:26px}
@media(max-width:980px){
 .hero-photo{min-height:430px}
 .hero-photo img{min-height:430px;object-position:62% center}
 .part-photo,.appendix-photo{padding:0 18px}
}
@media(max-width:680px){
 .hero-art.hero-photo{display:block;max-width:none;width:100%;height:238px;min-height:0;margin:16px 0 0}
 .hero-photo{min-height:0;height:238px}
 .hero-photo img{height:238px;min-height:0;object-position:60% center}
 .hero-photo figcaption{right:10px;bottom:8px;font-size:8px;max-width:20em}
 .part-photo{margin-top:20px;padding:0 18px}
 .part-photo figcaption,.article-photo figcaption,.appendix-photo figcaption{font-size:9px}
 .article-photo{margin:20px 0 26px}
 .appendix-photo{padding:0 18px;margin-top:20px}
}
@media(min-width:1200px){
 .hero-photo{width:calc(100% + (100vw - 1120px)/2);margin-right:calc((100vw - 1120px)/-2)}
}
.brand-mark img{display:block;width:100%;height:100%}
.footer-logo{display:block;width:54px;height:54px;margin-bottom:10px}
@media(max-width:680px){.footer-logo{width:46px;height:46px;margin-bottom:8px}}
.share-preview{display:grid;grid-template-columns:96px 1fr;gap:14px;text-align:left;align-items:start;margin:4px 0 18px}
.share-thumb{display:block;width:96px;height:96px;object-fit:cover;background:var(--paper-2)}
.share-kicker{font-family:var(--sans);font-size:8px;letter-spacing:.18em;color:var(--rose);margin:2px 0 4px}
.share-preview h3{font-family:var(--serif);font-size:20px;font-weight:500;line-height:1.4;margin:0 0 5px}
.share-preview p:not(.share-kicker){font-family:var(--sans);font-size:10px;line-height:1.6;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.share-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin:0 0 14px}
.share-actions button{display:grid;grid-template-columns:30px 1fr;grid-template-rows:auto auto;column-gap:8px;text-align:left;border:1px solid var(--line);background:#fffaf1;color:var(--ink);padding:10px;cursor:pointer;font-family:var(--sans)}
.share-actions button:hover{border-color:var(--rose)}
.share-ico{grid-row:1 / span 2;display:flex;align-items:center;justify-content:center;width:30px;height:30px;background:var(--ink);color:var(--paper);font-family:var(--serif);font-size:13px;border-radius:50%}
.share-actions button b{font-family:var(--serif);font-size:14px;font-weight:500;line-height:1.4}
.share-actions button small{font-family:var(--sans);font-size:9px;color:var(--muted);line-height:1.4}
.share-guide{text-align:left;border-left:2px solid var(--gold);padding:8px 0 8px 12px;margin:12px 0 0}
.share-guide b{display:block;font-family:var(--serif);font-size:14px;font-weight:500;margin-bottom:2px}
.share-guide p{font-family:var(--sans);font-size:10px;line-height:1.7;color:var(--muted);margin:0}
.share-foot{display:flex;gap:8px;justify-content:center;margin-top:14px}
.share-foot button{border:1px solid var(--line);background:transparent;color:var(--ink);font-family:var(--sans);font-size:10px;padding:8px 11px;cursor:pointer}
.share-foot button:hover{border-color:var(--rose);color:var(--rose)}
.share-tip{margin-top:12px;font-size:9px;line-height:1.7}
@media(max-width:680px){.share-panel{padding:20px 16px}.share-preview{grid-template-columns:78px 1fr;gap:10px}.share-thumb{width:78px;height:78px}.share-preview h3{font-size:18px}.share-actions{grid-template-columns:1fr}.share-actions button{padding:8px}.share-actions button b{font-size:13px}}
.faq-list details{border-top:1px solid var(--line);padding:14px 0}
.faq-list details:last-of-type{border-bottom:1px solid var(--line)}
.faq-list summary{display:flex;gap:12px;align-items:baseline;cursor:pointer;font-family:var(--serif);font-size:18px;line-height:1.6;list-style:none}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:after{content:"＋";margin-left:auto;font-family:var(--sans);font-size:13px;color:var(--rose)}
.faq-list details[open] summary:after{content:"－"}
.faq-list summary span{font-family:var(--sans);font-size:9px;color:var(--rose);letter-spacing:.08em}
.faq-list details p{font-family:var(--serif);font-size:15px;line-height:1.95;color:var(--muted);margin:8px 0 4px 24px}
@media(max-width:680px){.faq-list summary{font-size:16px}.faq-list details p{font-size:14px;margin-left:0}}
.appendix-photo{max-width:780px;padding:0}
.part-photo img{object-position:center}
.brand-mark{background:url(/assets/logo-dark-180.png) center/contain no-repeat}
.footer-logo{background:url(/assets/logo-light.png) center/contain no-repeat}
.qr-img{display:block;width:82px;height:82px;background:#fff center/cover no-repeat;padding:3px}
@media(max-width:680px){.qr-img{width:74px;height:74px}}
.share-thumb{display:block;width:96px;height:96px;background:var(--paper-2) center/cover no-repeat}
@media(max-width:680px){.share-thumb{width:78px;height:78px}}