:root{
  --paper:#efeadd; --paper-light:#f8f4ea; --ink:#1c1b17; --muted:#67645b;
  --rule:#b9b3a5; --red:#9c3e2f; --green:#334f3d;
  --serif:"Songti SC","STSong","Noto Serif SC","SimSun",serif;
  --sans:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;
  --english:Georgia,"Times New Roman",serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased}
body::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.15;background:repeating-linear-gradient(0deg,rgba(28,27,23,.04) 0,rgba(28,27,23,.04) 1px,transparent 1px,transparent 4px)}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img{display:block;width:100%;height:auto}
::selection{background:var(--red);color:var(--paper-light)}
.running-head{height:44px;padding:0 clamp(18px,3vw,48px);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;border-bottom:3px double var(--ink);font:9px/1.5 var(--english);letter-spacing:.1em}
.running-head span:nth-child(2){font-family:var(--serif);font-size:11px;letter-spacing:.16em}
.running-head span:last-child{text-align:right}
.top-nav{height:66px;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(18px,3vw,48px);border-bottom:1px solid var(--rule)}
.brand{font-family:var(--serif);font-size:21px;letter-spacing:.18em}
.view-switch{min-height:44px;display:inline-flex;align-items:center;gap:12px;font-size:11px;letter-spacing:.08em;border-bottom:1px solid var(--red);color:var(--red);padding-bottom:3px}
.view-switch::after{content:"↗";font-size:14px}
.view{display:none}
.view.is-active{display:block}
.cover{padding:clamp(28px,4vw,56px) clamp(18px,3vw,48px) 54px;min-height:calc(100svh - 110px);display:grid;grid-template-columns:minmax(0,1.04fr) minmax(380px,.96fr);gap:clamp(38px,6vw,92px)}
.contents-side{display:flex;flex-direction:column;min-width:0}
.masthead{border-bottom:1px solid var(--ink);padding-bottom:24px;position:relative}
.issue-line{display:flex;justify-content:space-between;gap:20px;margin-bottom:18px;color:var(--red);font:10px/1.6 var(--english);letter-spacing:.11em}
.masthead h1{margin:0;font:400 clamp(96px,15vw,224px)/.78 var(--serif);letter-spacing:-.075em}
.masthead h1 span{font-family:var(--english);font-size:.23em;letter-spacing:-.02em;vertical-align:top;margin-left:.25em;color:var(--red)}
.masthead p{max-width:35em;margin:28px 0 0;color:var(--muted);font-family:var(--serif);font-size:16px;line-height:1.95;letter-spacing:.03em}
.contents-title{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin:34px 0 0;padding-bottom:12px;border-bottom:1px solid var(--ink)}
.contents-title h2{margin:0;font:400 21px/1.5 var(--serif);letter-spacing:.12em}
.contents-title span{font:9px/1.5 var(--english);letter-spacing:.1em;color:var(--muted)}
.contents-list{margin:0;padding:0;list-style:none}
.contents-list a{display:grid;grid-template-columns:34px minmax(0,1fr) 42px;gap:16px;align-items:baseline;padding:14px 0;border-bottom:1px solid var(--rule);transition:padding 160ms ease,background-color 160ms ease}
.contents-list a:hover,.contents-list a:focus-visible{padding-inline:8px;background:rgba(156,62,47,.045)}
.contents-list .num{color:var(--red);font:9px/1.6 var(--english)}
.contents-list strong{display:block;font:400 21px/1.5 var(--serif);letter-spacing:.04em}
.contents-list small{display:block;margin-top:3px;color:var(--muted);font:9px/1.5 var(--english);letter-spacing:.07em}
.contents-list .page{text-align:right;font:12px/1.5 var(--english);color:var(--muted)}
.contents-list .special strong{color:var(--red)}
.issue-note{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:auto;padding-top:30px;color:var(--muted);font-size:10px;line-height:1.8}
.issue-note p{margin:0}
.issue-note strong{display:block;margin-bottom:5px;color:var(--ink);font-family:var(--serif);font-size:14px;font-weight:400}
.visual-side{position:relative;min-height:650px;display:grid;grid-template-columns:1fr 118px;gap:16px;align-items:stretch}
.cover-image{position:relative;overflow:hidden;border:1px solid var(--ink)}
.cover-image img{width:100%;height:100%;object-fit:cover;object-position:55% 50%}
.cover-image::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(18,29,22,.5),transparent 32%)}
.cover-label{position:absolute;z-index:1;left:24px;right:24px;bottom:24px;display:flex;justify-content:space-between;gap:20px;color:#fff;font-size:10px;letter-spacing:.06em}
.cover-label strong{font:400 25px/1.4 var(--serif);display:block;margin-bottom:4px}
.small-rail{display:grid;grid-template-rows:1fr auto;gap:16px}
.small-photo{overflow:hidden;border:1px solid var(--ink)}
.small-photo img{height:100%;object-fit:cover}
.stamp{align-self:end;width:112px;min-height:112px;display:grid;place-content:center;justify-items:center;border:1px solid var(--red);color:var(--red);font-family:var(--serif);text-align:center;line-height:1.6;font-size:12px;transform:rotate(-3deg)}
.stamp span{display:block;margin-top:5px;font:9px/1.4 var(--english);letter-spacing:.08em}
.cover-footer{grid-column:1/-1;display:flex;justify-content:space-between;gap:20px;margin-top:18px;color:var(--muted);font:9px/1.6 var(--english);letter-spacing:.08em}
.draft-tag{position:fixed;left:18px;bottom:18px;z-index:30;padding:8px 11px;background:var(--red);color:var(--paper-light);font:9px/1.5 var(--english);letter-spacing:.08em;pointer-events:none}
/* Chapter article */
.article-page{padding-bottom:64px}
.article-head{display:grid;grid-template-columns:1fr 2.25fr;gap:clamp(34px,7vw,110px);padding:clamp(48px,6vw,84px) clamp(18px,3.2vw,50px) 34px;border-bottom:1px solid var(--ink)}
.article-meta{border-top:1px solid var(--ink);padding-top:15px;align-self:start}
.article-meta p{margin:0 0 14px;font:9px/1.6 var(--english);letter-spacing:.1em;color:var(--red)}
.article-meta h2{margin:0 0 22px;font:400 23px/1.5 var(--serif)}
.article-meta span{display:block;color:var(--muted);font-size:11px;line-height:1.9}
.article-title{position:relative}
.article-title .folio{position:absolute;right:0;top:-20px;color:var(--red);font:400 clamp(76px,10vw,140px)/1 var(--english);opacity:.22}
.article-title h1{margin:0;font:400 clamp(62px,9vw,148px)/.95 var(--serif);letter-spacing:-.05em;position:relative}
.article-deck{max-width:35em;margin:30px 0 0;font-family:var(--serif);font-size:clamp(18px,1.7vw,24px);line-height:1.9;color:var(--muted)}
.article-grid{padding:0 clamp(18px,3.2vw,50px);display:grid;grid-template-columns:1fr 2.25fr;gap:clamp(34px,7vw,110px)}
.article-toc{padding:42px 0;border-right:1px solid var(--rule);padding-right:28px}
.article-toc p{margin:0 0 16px;font:9px/1.6 var(--english);letter-spacing:.1em;color:var(--muted)}
.article-toc ol{margin:0;padding:0;list-style:none}
.article-toc li{padding:10px 0;border-top:1px solid var(--rule);font-size:10px;color:var(--muted)}
.article-toc li span{display:block;margin-bottom:3px;color:var(--red);font:8px/1.4 var(--english)}
.article-toc .is-current{color:var(--ink);font-family:var(--serif);font-size:14px}
.article-main{min-width:0;padding-top:42px}
.article-hero{margin:0 0 16px;position:relative}
.article-hero img{width:100%;height:clamp(420px,54vw,690px);object-fit:cover}
.article-hero figcaption{display:flex;justify-content:space-between;gap:20px;padding-top:10px;border-top:1px solid var(--rule);font-size:9px;line-height:1.7;color:var(--muted);margin-top:9px}
.article-columns{columns:2;column-gap:38px;column-rule:1px solid var(--rule);padding-top:26px}
.article-columns p{margin:0 0 24px;font-family:var(--serif);font-size:15px;line-height:2.05;text-align:justify}
.article-columns p:first-child::first-letter{float:left;font:400 66px/.82 var(--serif);line-height:.82;padding:8px 9px 0 0;color:var(--red)}
.pull-quote{break-inside:avoid;margin:12px 0 28px;padding:22px 0;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);font:400 25px/1.7 var(--serif);letter-spacing:.03em;color:var(--red)}
.article-photos{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:32px 0 20px;break-inside:avoid}
.article-photos figure{margin:0}
.article-photos img{height:310px;object-fit:cover}
.article-photos figcaption{margin-top:9px;color:var(--muted);font-size:9px;line-height:1.7}
.article-pagination{display:grid;grid-template-columns:1fr 1fr;margin-top:40px;border-top:3px double var(--ink)}
.article-pagination a{min-height:102px;display:flex;flex-direction:column;justify-content:center;gap:6px;padding:20px 0;font-size:9px;letter-spacing:.08em;color:var(--muted)}
.article-pagination a + a{text-align:right;padding-left:26px;border-left:1px solid var(--rule)}
.article-pagination strong{color:var(--ink);font:400 21px/1.5 var(--serif)}
@media (max-width:1050px){
  .cover{grid-template-columns:1fr}
  .visual-side{min-height:56svh;grid-row:1;grid-template-columns:1fr 150px}
  .contents-side{grid-row:2}
  .article-head,.article-grid{grid-template-columns:220px minmax(0,1fr)}
}
@media (max-width:700px){
  .running-head{height:38px;grid-template-columns:1fr auto;padding-inline:14px}
  .running-head span:nth-child(2){display:none}
  .top-nav{height:60px;padding-inline:14px}
  .cover{padding:22px 14px 42px;gap:34px}
  .visual-side{grid-template-columns:1fr 94px;min-height:52svh;gap:10px}
  .masthead h1{font-size:clamp(90px,29vw,130px)}
  .masthead p{font-size:15px}
  .contents-list a{grid-template-columns:28px minmax(0,1fr) 32px;gap:10px;padding-block:13px}
  .contents-list strong{font-size:19px}
  .issue-note{grid-template-columns:1fr}
  .stamp{width:94px;min-height:94px;font-size:10px}
  .cover-footer{flex-direction:column;gap:5px}
  .draft-tag{display:none}
  .article-head,.article-grid{grid-template-columns:1fr;padding-inline:14px;gap:28px}
  .article-meta{max-width:320px}
  .article-title .folio{top:-8px}
  .article-title h1{font-size:clamp(66px,19vw,96px)}
  .article-toc{border-right:0;border-bottom:1px solid var(--rule);padding:0 0 18px;display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
  .article-toc p{grid-column:1/-1;margin-bottom:0}
  .article-toc li{font-size:9px}
  .article-main{padding-top:0}
  .article-hero img{height:58svh}
  .article-columns{columns:1}
  .article-columns p{font-size:15px}
  .article-columns p:first-child::first-letter{font-size:56px}
  .article-photos{grid-template-columns:1fr}
  .article-photos img{height:280px}
  .article-pagination{grid-template-columns:1fr}
  .article-pagination a + a{border-left:0;border-top:1px solid var(--rule);text-align:left;padding-left:0}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* Production multi-page shell, built from Direction C. */
:root{
  --ivory:var(--paper); --secondary:var(--muted); --accent:var(--green); --line:var(--rule);
  --header-height:66px; --page-margin:clamp(18px,3.2vw,50px);
}
html{background:var(--paper)}
body.journal-page{background:var(--paper);color:var(--ink);min-width:320px}
.journal-page .running-head{height:40px}
.journal-page .top-nav{position:sticky;top:0;z-index:30;background:rgba(239,234,221,.94);backdrop-filter:blur(12px)}
.journal-nav{display:flex;align-items:center;gap:clamp(12px,2vw,28px);margin-left:auto;margin-right:clamp(16px,3vw,42px)}
.journal-nav a{min-height:44px;display:inline-flex;align-items:center;font-size:10px;letter-spacing:.05em;color:var(--muted);border-bottom:1px solid transparent}
.journal-nav a:hover,.journal-nav a[aria-current="page"]{color:var(--red);border-bottom-color:var(--red)}
.journal-menu{display:none;position:relative}
.journal-menu summary{list-style:none;min-height:44px;display:inline-flex;align-items:center;font-size:11px;letter-spacing:.08em;color:var(--red);cursor:pointer}
.journal-menu summary::-webkit-details-marker{display:none}
.journal-menu summary::after{content:"＋";margin-left:10px}
.journal-menu[open] summary::after{content:"－"}
.journal-menu-panel{position:absolute;right:0;top:48px;width:min(320px,calc(100vw - 28px));background:var(--paper-light);border:1px solid var(--ink);box-shadow:0 22px 60px rgba(28,27,23,.2);padding:8px 18px}
.journal-menu-panel a{min-height:44px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--rule);font-size:12px}
.journal-menu-panel a:last-child{border-bottom:0}
.journal-menu-panel span{font:9px/1.4 var(--english);color:var(--muted)}
.reading-progress{position:fixed;left:0;right:0;top:0;height:2px;z-index:100;pointer-events:none}
.reading-progress span{display:block;width:100%;height:100%;background:var(--red);transform:scaleX(0);transform-origin:left center}
.index-utility{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px 30px;margin-top:24px;padding-top:18px;border-top:1px solid var(--rule)}
.index-utility nav{display:flex;flex-wrap:wrap;gap:12px 24px}
.index-utility a{min-height:44px;display:inline-flex;align-items:center;font-size:10px;letter-spacing:.07em;color:var(--muted);border-bottom:1px solid transparent}
.index-utility a:hover{color:var(--red);border-bottom-color:var(--red)}
.index-utility span{font:9px/1.7 var(--english);letter-spacing:.07em;color:var(--muted)}

/* Shared chapter sequence */
.journal-main{min-height:60svh}
.journal-chapter-head{display:grid;grid-template-columns:minmax(190px,.65fr) minmax(0,2fr);gap:clamp(34px,7vw,110px);padding:clamp(48px,6vw,84px) var(--page-margin) 34px;border-bottom:1px solid var(--ink)}
.journal-chapter-meta{border-top:1px solid var(--ink);padding-top:15px;align-self:start}
.journal-chapter-meta p{margin:0 0 14px;font:9px/1.6 var(--english);letter-spacing:.1em;color:var(--red)}
.journal-chapter-meta span{display:block;color:var(--muted);font-size:11px;line-height:1.9}
.journal-chapter-title{position:relative;min-width:0}
.journal-chapter-title .folio{position:absolute;right:0;top:-24px;color:var(--red);font:400 clamp(74px,10vw,140px)/1 var(--english);opacity:.2}
.journal-chapter-title h1{margin:0;position:relative;font:400 clamp(62px,9vw,148px)/.95 var(--serif);letter-spacing:-.055em}
.journal-chapter-title .deck{max-width:35em;margin:30px 0 0;font-family:var(--serif);font-size:clamp(18px,1.7vw,24px);line-height:1.9;color:var(--muted)}
.journal-cover-image{max-width:1536px;margin:clamp(26px,4vw,50px) auto 0;padding-inline:var(--page-margin)}
.journal-cover-image figure{margin:0}
.journal-cover-image img{width:100%;height:clamp(330px,48vw,650px);object-fit:cover;object-position:var(--cover-pos,50% 50%)}
.journal-cover-image figcaption{display:flex;justify-content:space-between;gap:20px;padding-top:10px;border-top:1px solid var(--rule);margin-top:9px;font-size:9px;line-height:1.7;color:var(--muted)}.journal-content{
  width:min(calc(100% - var(--page-margin)*2),1536px);
  margin-inline:auto;
  padding-block:clamp(34px,5vw,58px) clamp(64px,8vw,96px);
}
.journal-content > .six-teas-section,
.journal-content > .tea-making-section,
.journal-content > .tea-knowledge-section,
.journal-content > .tea-history-section,
.journal-content > .tea-map-section{
  width:100%;max-width:none;margin:0;padding-block:0 clamp(32px,4vw,52px);border-top:0;scroll-margin-top:0;
}
.journal-content .history-guide-note{margin:0 0 36px}
.journal-content .tea-section-opening,
.journal-content .history-opening,
.journal-content .tea-map-opening{display:none}
.journal-content .making-next,
.journal-content .knowledge-next,
.journal-content .tea-map-next{display:none}
.journal-content .tea-map-section{padding-bottom:0}
.journal-content .tea-map-interactive{margin-top:0}
.journal-content .tea-map-reading-note{padding-bottom:0}
.journal-content .exhibition-end{width:100%;margin:0;border-top:0;padding-top:0}
.journal-content .exhibition-end .end-opening{display:none}
.journal-pagination{width:min(calc(100% - var(--page-margin)*2),1536px);margin:0 auto clamp(52px,7vw,86px);display:grid;grid-template-columns:1fr 1fr 1fr;border-top:3px double var(--ink);border-bottom:1px solid var(--rule)}
.journal-pagination a{min-height:108px;display:flex;flex-direction:column;justify-content:center;gap:6px;padding:20px 18px;font-size:9px;letter-spacing:.08em;color:var(--muted);transition:background-color 150ms ease}
.journal-pagination a:hover{background:rgba(156,62,47,.045)}
.journal-pagination a:nth-child(2){text-align:center;border-inline:1px solid var(--rule)}
.journal-pagination a:last-child{text-align:right}
.journal-pagination strong{font:400 20px/1.5 var(--serif);color:var(--ink)}
.journal-footer{width:min(calc(100% - var(--page-margin)*2),1536px);margin-inline:auto;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:24px 40px;padding-block:26px 42px;border-top:1px solid var(--rule)}
.journal-footer p{margin:0;font-size:11px;line-height:1.8}
.journal-footer p[lang]{margin-top:5px;font-size:8px;letter-spacing:.08em;color:var(--muted)}
.journal-footer nav{display:flex;flex-wrap:wrap;gap:0 22px}
.journal-footer a{min-height:44px;display:inline-flex;align-items:center;font-size:10px;text-underline-offset:3px}
.back-to-top-journal{position:fixed;right:20px;bottom:20px;z-index:20;width:46px;height:46px;display:grid;place-items:center;border:1px solid var(--ink);background:var(--paper-light);color:var(--ink);font-size:16px;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity 160ms ease,transform 160ms ease,visibility 160ms ease}
.back-to-top-journal.is-visible{opacity:1;visibility:visible;transform:none}
.back-to-top-journal:hover{background:var(--ink);color:var(--paper-light)}

/* Appendix pages */
.appendix-content{width:min(calc(100% - var(--page-margin)*2),1536px);margin-inline:auto;padding-block:clamp(34px,5vw,58px) clamp(64px,8vw,96px)}
.appendix-content .end-resource-section{border-top:1px solid var(--line);padding-block:42px 78px}
.appendix-content .end-resource-section:first-child{border-top:0;padding-top:0}
.appendix-content .end-resource-intro,.appendix-content .end-about>p{width:62%}
.appendix-content .exhibition-footer{width:100%}
.about-return{width:min(calc(100% - var(--page-margin)*2),1536px);margin:0 auto;padding-block:22px 64px}
.about-return a{min-height:44px;display:inline-flex;align-items:center;gap:14px;font-size:11px;letter-spacing:.07em}

@media (max-width:980px){
  .journal-nav{display:none}
  .journal-menu{display:block;margin-left:auto}
  .journal-chapter-head{grid-template-columns:1fr;gap:28px}
  .journal-chapter-meta{max-width:330px}
  .journal-chapter-title h1{font-size:clamp(62px,12vw,108px)}
  .journal-pagination{grid-template-columns:1fr 1fr}
  .journal-pagination a:nth-child(2){border-left:0}
  .journal-pagination a:last-child{grid-column:1/-1;text-align:left;border-top:1px solid var(--rule)}
  .appendix-content .end-resource-intro,.appendix-content .end-about>p{width:100%}
}
@media (max-width:700px){
  .journal-page .running-head{height:34px;grid-template-columns:1fr auto;padding-inline:14px}
  .journal-page .running-head span:nth-child(2){display:none}
  .journal-page .top-nav{height:60px;padding-inline:14px}
  .cover{padding:20px 14px 40px}
  .journal-chapter-head{padding:42px 14px 28px}
  .journal-chapter-title .folio{top:-8px}
  .journal-chapter-title h1{font-size:clamp(62px,18vw,92px)}
  .journal-chapter-title .deck{font-size:16px}
  .journal-cover-image{padding-inline:14px;margin-top:24px}
  .journal-cover-image img{height:48svh}
  .journal-cover-image figcaption{flex-direction:column;gap:4px}
  .journal-content{width:calc(100% - 28px);padding-block:28px 54px}
  .journal-content .history-guide-note{margin-bottom:28px}
  .journal-pagination{width:calc(100% - 28px);grid-template-columns:1fr}
  .journal-pagination a:nth-child(2){text-align:left;border-inline:0;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
  .journal-pagination a:last-child{grid-column:1;text-align:left;border-top:0}
  .journal-footer{width:calc(100% - 28px);display:grid;grid-template-columns:1fr}
  .journal-footer nav{grid-column:1;gap:0 18px}
  .back-to-top-journal{right:14px;bottom:14px}
  .appendix-content{width:calc(100% - 28px);padding-block:28px 54px}
  .appendix-content .end-resource-section{padding-block:32px 54px}
  .index-utility{align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  .reading-progress span,.back-to-top-journal{transition:none!important}
}

/* Cover figures must not inherit the browser's 40px inline margins. */
.cover-image,.small-photo{margin:0;min-width:0}
.masthead h1 span{display:block;white-space:nowrap;font-size:clamp(26px,3.5vw,50px);margin:20px 0 0;line-height:1.1}
.cover-label{flex-wrap:wrap;font-size:13px}
.cover-label strong{font-size:clamp(18px,1.75vw,25px)}
.journal-page :focus-visible{outline:2px solid var(--red);outline-offset:5px}
.journal-page [id]{scroll-margin-top:calc(var(--header-height) + 20px)}
.journal-chapter-title .folio{position:static;display:block;margin-bottom:20px;text-align:right;font-size:clamp(32px,4vw,60px);line-height:1;opacity:.55}
.journal-nav a,.journal-menu summary,.index-utility a,.journal-footer a{font-size:13px}
.journal-cover-image figcaption,.journal-chapter-meta span{font-size:12px}
.skip-link{position:fixed;z-index:110;left:20px;top:8px;padding:12px 18px;background:var(--paper-light);transform:translateY(-150%)}
.skip-link:focus{transform:translateY(0)}
@media (max-width:1050px){
  .contents-side{grid-row:1}
  .visual-side{grid-row:2}
}
@media (max-width:700px){
  .visual-side{grid-template-columns:minmax(0,1fr) 94px;min-height:360px}
  .cover-label{left:16px;right:16px;bottom:16px;gap:8px}
  .cover-label strong{font-size:20px}
  .journal-menu-panel{max-height:calc(100dvh - 112px);overflow-y:auto;overscroll-behavior:contain}
}