.history-exhibit{padding:38px 32px 60px;background:radial-gradient(ellipse at top left,#dfd6ba55,transparent 40%),#f8f5eb;color:#214d39}.history-heading{text-align:center;position:relative;margin:0 auto 30px;padding:20px 0 24px;border-bottom:1px solid #d9c9a7}.history-heading>span{font-size:13px;letter-spacing:4px;color:#9e8250}.history-heading h1{font-family:'Ma Shan Zheng','Songti SC',serif;font-weight:400;font-size:72px;margin:14px 0 10px;letter-spacing:8px}.history-heading p{font-family:'Noto Serif SC',serif;font-size:22px;letter-spacing:4px;margin:0 0 16px}.history-heading strong{font:28px Georgia,'Songti SC',serif;color:#a17b37}.history-toolbar{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:0 0 24px}.history-toolbar b{font-size:20px}.history-toolbar p{font-size:14px;color:#89816e;margin:8px 0 0}.history-tools{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.history-tools button,.history-tools a{border:1px solid #cdbb95;background:#fffdf7;color:#345b43;border-radius:6px;padding:10px 15px;font:15px sans-serif;text-decoration:none;cursor:pointer}.history-tools button:hover,.history-tools a:hover{background:#e9eddf}.history-tools output{font-size:14px;min-width:50px;text-align:center}.history-viewport{overflow:auto;border-radius:12px;border:1px solid #ded8c5;background:#f8f5eb}.history-viewport img{display:block;width:100%;max-width:none;min-width:1600px;height:auto}.history-viewport:focus-visible{outline:3px solid #ad8c4b;outline-offset:4px}.history-caption{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:20px 0}.history-caption span{margin-right:25px;font-size:14px}.history-caption span:before{content:'';display:inline-block;width:38px;height:3px;background:#245c43;vertical-align:middle;margin-right:10px}.history-caption .legend-branch:before{background:#af8541;height:2px}.history-caption p{color:#89816e;font-size:13px}.history-text{border-top:1px solid #dfd6bd;padding:22px 0;font-size:15px}.history-text summary{cursor:pointer;font-size:18px}.history-text p{color:#89816e}.history-text li{line-height:2;color:#536351}.history-text ul{columns:3;column-gap:40px;padding-left:20px}.history-text li{break-inside:avoid}.ui-timeline:not(.tour-active) #tourGuide{display:none!important}@media(max-width:1000px){.history-toolbar,.history-caption{display:block}.history-tools{margin-top:18px}.history-heading h1{font-size:50px}.history-exhibit{padding:22px 16px}.history-text ul{columns:1}}
.history-heading:before{content:'';position:absolute;inset:0;z-index:0;pointer-events:none;background:linear-gradient(90deg,transparent,#f8f5eb 34%,#f8f5eb 66%,transparent),url('../images/home/timeline_1_1926.webp') left center/34% auto no-repeat,url('../images/home/timeline_5_2026.webp') right center/34% auto no-repeat;opacity:.12}.history-heading>*{position:relative;z-index:1}
.lineage-native{position:relative;min-width:1600px}.lineage-canvas{width:2180px;height:1290px;position:absolute;left:0;top:0;transform-origin:top left}.lineage-lane{position:absolute;top:5px;height:1275px;border:1px solid #ded8c5;border-radius:12px;background:#faf6ea;padding:22px}.lineage-lane:nth-child(even){background:#f1f3e9}.lineage-lane h2{font:600 27px 'Noto Serif SC','Songti SC',serif;margin:0 0 12px;color:#24543f}.lineage-lane>p{font-size:17px;color:#998056;margin:0}.lineage-connectors{position:absolute;inset:0;width:2180px;height:1290px;pointer-events:none}.lineage-connectors .edge-label{font:15px sans-serif;fill:#926b2d;paint-order:stroke;stroke:#f8f5eb;stroke-width:7px;stroke-linejoin:round}.lineage-connectors .edge-note{font:13px 'Noto Serif SC','Songti SC',serif;fill:#8a6a3a;paint-order:stroke;stroke:#f8f5eb;stroke-width:6px;stroke-linejoin:round}.lineage-html-node{position:absolute;box-sizing:border-box;border:1px solid #bbab86;border-radius:7px;background:#fffdf6;text-align:center;color:#244b3a;padding:9px 4px;font-family:'Noto Serif SC','Songti SC',serif}.lineage-html-node h3{font-size:18px;font-weight:600;line-height:1.4;margin:0 0 3px;white-space:nowrap}.lineage-html-node time{font-size:17px;line-height:1.4}.lineage-html-node p{font-size:13px;color:#777469;line-height:1.4;margin:5px 0 0;white-space:nowrap}.lineage-html-node.main-node{border:2px solid #42735a}.lineage-html-node.current-node{background:#1d5944;color:#fff9e8}.lineage-html-node.current-node p{color:#e5d4a3}.lineage-html-node:hover{box-shadow:0 3px 12px #254d391c;border-color:#8e723a}.lineage-html-node ::selection{background:#e5d5a9;color:#193e2d}
.lineage-html-node{display:flex;flex-direction:column;justify-content:center;gap:4px;padding:6px 3px}.lineage-html-node h3,.lineage-html-node p{margin:0!important}.lineage-html-node time{display:block}.lineage-html-node p{line-height:1.4!important}
/* Refined opening and closing panels. */
.history-heading{min-height:270px;display:flex;flex-direction:column;align-items:center;justify-content:center;margin-bottom:28px;padding:24px 0;overflow:hidden;border-radius:10px;border-bottom:0;background:#f5f0e2}
.history-heading:before{opacity:.48;background:linear-gradient(90deg,rgba(248,245,235,.12),#f8f5eb 37%,#f8f5eb 63%,rgba(248,245,235,.15)),url('../images/home/timeline_1_1926.webp') left center/40% auto no-repeat,url('../images/home/timeline_5_2026.webp') right center/40% auto no-repeat}
.history-heading>span{font-size:12px;letter-spacing:5px}.history-heading h1{font-size:68px;margin:10px 0 14px;line-height:1.2}.history-heading p{font-size:19px;letter-spacing:3px;margin:0 0 12px}.history-heading strong{font-size:26px;display:flex;align-items:center;gap:18px}.history-heading strong:before,.history-heading strong:after{content:'';width:55px;height:1px;background:#baa06a}
.history-closing{margin-top:20px;background:linear-gradient(115deg,#174c39,#2c634a);border-radius:12px;padding:38px 42px;display:grid;grid-template-columns:1.15fr 1fr;align-items:center;gap:38px;color:#fff9e9}.history-closing-copy>span{color:#d4bb83;font-size:13px;letter-spacing:3px}.history-closing h2{font:28px 'Noto Serif SC','Songti SC',serif;margin:18px 0}.history-closing p{color:#d3ddcf;font-size:15px;line-height:1.9;margin:0}.history-closing-links{display:grid;grid-template-columns:1fr 1fr;gap:18px}.history-closing-links a{display:block;padding:24px;border:1px solid #c6b78066;border-radius:8px;text-decoration:none;color:#fff7e6;background:#ffffff07;transition:background .2s}.history-closing-links a:hover{background:#ffffff16}.history-closing-links small{font-size:13px;color:#d4bb83}.history-closing-links b{display:block;font-size:18px;font-weight:500;margin:14px 0 22px}.history-closing-links span{font-size:14px;color:#e2d3ad}.history-closing-links a:focus-visible{outline:3px solid #dac38d;outline-offset:3px}@media(max-width:1000px){.history-closing{grid-template-columns:1fr;padding:28px}.history-heading h1{font-size:48px}}@media(max-width:650px){.history-closing-links{grid-template-columns:1fr}.history-heading:before{background-size:auto,70% auto,70% auto}.history-heading h1{font-size:40px}}
/* Quiet exhibition layout: open columns and a restrained editorial frame. */
.history-exhibit{padding:0 max(38px,4vw) 30px;background:#f8f5eb}
.history-heading{margin:0 calc(-1 * max(38px,4vw)) 48px;min-height:235px;border-radius:0;padding:22px 0;background:#f8f5eb}
.history-heading:before{opacity:.3;background:linear-gradient(90deg,transparent,#f8f5eb 33%,#f8f5eb 67%,transparent),url('../images/home/timeline_1_1926.webp') left center/34% auto no-repeat,url('../images/home/timeline_5_2026.webp') right center/34% auto no-repeat;filter:sepia(.45)}
.history-heading>span{display:none}.history-heading h1{font-size:72px;letter-spacing:10px;margin:6px 0 15px}.history-heading p{font-size:21px;font-weight:500;letter-spacing:3px}.history-heading strong{font-size:28px}
.history-viewport{border:0;border-radius:0;background:transparent;margin:0 auto;max-width:1840px}
.lineage-lane,.lineage-lane:nth-child(even){background:transparent;border:0;border-right:1px solid #d9cfb655;border-radius:0;padding-top:12px}.lineage-lane.lane-4{border-right:0}
.lineage-lane h2{font-size:26px}.lineage-lane>p{font-size:16px;color:#a18f6d}
.lineage-html-node{background:#fffdf7;border-color:#d4c8aa;border-radius:5px}.lineage-html-node.main-node{background:#edf2e8;border-width:1px}.lineage-html-node.current-node{background:#1d5944}.lineage-html-node:hover{box-shadow:0 3px 10px #254d3910}
.history-caption{max-width:1840px;margin:12px auto 0;border-top:1px solid #d8ccb255;padding:18px 0}.history-caption p{font-size:12px;color:#a39a86}
.history-epilogue{max-width:1840px;margin:34px auto 12px;padding:36px 20px 42px;text-align:center;border-top:1px solid #d8ccb277;background:radial-gradient(ellipse at bottom,#e4e9d866,transparent 70%)}
.history-epilogue>span{font-size:12px;letter-spacing:5px;color:#a28a55}.history-epilogue h2{font-family:'Noto Serif SC','Songti SC',serif;font-size:28px;font-weight:500;letter-spacing:3px;margin:18px 0 25px}.history-epilogue>div{display:flex;justify-content:center;align-items:center;gap:30px}.history-epilogue a{font-size:14px;color:#63745d;text-decoration:none}.history-epilogue a b{font-weight:400;margin-left:15px;color:#a58a52}.history-epilogue i{height:16px;width:1px;background:#d1c5ab}.history-epilogue a:hover{color:#204e38}
@media(max-width:1000px){.history-exhibit{padding:0 22px 25px}.history-heading{margin:0 -22px 30px}.history-heading h1{font-size:50px}.history-heading p{font-size:17px}.history-epilogue h2{font-size:22px}}
/* Approved editorial hierarchy: chapters, main institutions, tributary text. */
.history-exhibit{background:radial-gradient(ellipse at 0 95%,#e8e1cb55,transparent 32%),#f8f5eb}
.history-heading{min-height:270px;margin-bottom:34px}.history-heading h1{font-size:88px;letter-spacing:8px;font-weight:600}.history-heading p{font-size:24px}.history-heading:before{opacity:.62;background:linear-gradient(90deg,rgba(248,245,235,.15),#f8f5eb 35%,#f8f5eb 65%,rgba(248,245,235,.08)),url('../images/home/timeline_1_1926.webp') left center/36% auto no-repeat,url('../images/home/timeline_5_2026.webp') right center/36% auto no-repeat;filter:sepia(.35)}
.lineage-lane{padding:4px 15px;display:flex;align-items:flex-start;gap:16px}.chapter-number{font:94px/1 Georgia,serif;color:#ad8846;letter-spacing:-6px;flex-shrink:0}.chapter-copy{padding-top:12px}.lineage-lane .chapter-copy h2{font:600 28px/1.3 'Noto Serif SC','Songti SC',serif;margin:0 0 10px;white-space:nowrap}.chapter-copy p{font-size:16px;line-height:1.5;color:#8b7953;margin:0;max-width:200px}.lane-2 .chapter-number,.lane-3 .chapter-number{font-size:78px}.lane-2,.lane-3{gap:10px}.lane-2 .chapter-copy h2,.lane-3 .chapter-copy h2{font-size:25px}.lane-2 .chapter-copy p,.lane-3 .chapter-copy p{font-size:13px}
.lineage-html-node{border-color:transparent;background:#f8f5eb;border-radius:0;padding:6px 2px;gap:5px}.lineage-html-node h3{font-size:19px;line-height:1.4;font-weight:600;order:2}.lineage-html-node time{color:#a37c37;font-size:18px;order:1}.lineage-html-node p{font-size:12px;color:#958d7b;order:3}.lineage-html-node:not(.main-node):hover{border-color:transparent;background:#f1ecdd;box-shadow:none}
.lineage-html-node.main-node{background:linear-gradient(130deg,#205a43,#113e2f);border:1px solid #b09456;border-radius:9px;box-shadow:inset 0 0 0 3px #ffffff0a,0 3px 9px #153e2810;color:#fff8e5;gap:4px}.lineage-html-node.main-node h3{font-size:20px;color:#fff9e8;white-space:normal;line-height:1.25}.lineage-html-node.main-node time{font:19px Georgia,'Songti SC',serif;color:#e0bf7d}.lineage-html-node.main-node p{color:#c8d4c3;font-size:12px}.lineage-html-node.current-node{border:2px solid #bda15e;box-shadow:0 0 0 3px #bda15e22}.lineage-html-node[data-node-id="senior"]{background:#fffcf3;color:#254d39;border-color:#b6a177;box-shadow:none}.lineage-html-node[data-node-id="senior"] h3{color:#254d39}.lineage-html-node[data-node-id="senior"] time{color:#9d7732}.lineage-html-node[data-node-id="senior"] p{color:#887f6c}
.history-epilogue{position:relative;padding:28px 200px 34px;margin-top:20px;background:radial-gradient(ellipse at bottom,#e3e7d655,transparent 65%)}.history-epilogue>strong{position:absolute;top:38px;font:64px Georgia,'Songti SC',serif;color:#a08145;font-weight:400}.epilogue-start{left:25px}.epilogue-end{right:25px}.history-epilogue h2{font-family:'Ma Shan Zheng','Songti SC',serif;font-size:34px;letter-spacing:4px}.history-epilogue>span{font-size:11px;letter-spacing:4px}
@media(max-width:1000px){.history-heading h1{font-size:58px}.history-heading p{font-size:18px}.history-epilogue{padding:28px 20px}.history-epilogue>strong{display:none}}
/* Improve reading contrast and retain the detail in the campus photographs. */
.history-exhibit{background:#faf9f3}
.history-heading{background:#faf9f3}
.history-heading:before{opacity:1;filter:none;background:linear-gradient(90deg,rgba(250,249,243,.04) 0%,rgba(250,249,243,.08) 15%,#faf9f3 36%,#faf9f3 64%,rgba(250,249,243,.08) 85%,rgba(250,249,243,.04) 100%),url('../images/home/timeline_1_1926.webp') left center/36% auto no-repeat,url('../images/home/timeline_5_2026.webp') right center/36% auto no-repeat}
.history-heading strong{color:#795b25}.history-heading p{color:#173f2e}
.lineage-lane,.lineage-lane:nth-child(even){border-right:1.5px solid #acb1a0}.lineage-lane.lane-4{border-right:0}
.chapter-number{color:#997334}.chapter-copy p,.lane-2 .chapter-copy p,.lane-3 .chapter-copy p{color:#525f4b}
.lineage-html-node{background:#faf9f3;color:#183e2d}
.lineage-html-node time{color:#79501b}.lineage-html-node p{color:#63695e}.lineage-html-node h3{color:#163e2d}
.lineage-connectors .edge-label{fill:#79501b;stroke:#faf9f3}
.lineage-html-node.main-node time{color:#f0d293}.lineage-html-node.main-node p{color:#e0e9d9}.lineage-html-node[data-node-id="senior"] time{color:#79501b}.lineage-html-node[data-node-id="senior"] p{color:#626958}
.history-caption p{color:#626c5e}.history-epilogue>span{color:#796131}.history-epilogue a{color:#3e5b42}
/* Photo inscriptions and chapter editorial details. */
.history-heading{min-height:310px;isolation:isolate}
.history-heading:before{background:linear-gradient(90deg,transparent 0%,rgba(250,249,243,.03) 17%,#faf9f3 36%,#faf9f3 64%,rgba(250,249,243,.04) 84%,transparent 100%),url('../images/home/timeline_1_1926.webp') left 57%/36% auto no-repeat,url('../images/home/timeline_5_2026.webp') right 58%/36% auto no-repeat}
.history-heading .hero-inscription{position:absolute;font:20px/1.65 'Ma Shan Zheng','Songti SC',serif;letter-spacing:2px;color:#364434;text-align:left;text-shadow:0 1px 9px #faf9f3}
.hero-inscription span{display:block}
.hero-inscription-old{left:19%;bottom:22px;transform:rotate(-4deg)}
.hero-inscription-new{right:4%;top:24px;transform:rotate(-3deg);padding:8px 12px;background:linear-gradient(90deg,#faf9f3c9,#faf9f340)}
.history-heading .hero-photo-label{position:absolute;left:3%;top:36px;writing-mode:vertical-rl;font:22px/1.5 'Songti SC',serif;letter-spacing:5px;background:#faf9f3d9;border:1px solid #b8ab8a;padding:16px 9px;color:#344a37}
.chapter-copy{padding-top:8px}.lineage-lane .chapter-copy h2{margin-bottom:4px}
.chapter-motto{font:17px/1.5 'Noto Serif SC','Songti SC',serif;letter-spacing:1px;color:#655436;margin-top:8px;white-space:nowrap}
.lane-2 .chapter-motto,.lane-3 .chapter-motto{font-size:15px;letter-spacing:0}
.lane-2 .chapter-copy p,.lane-3 .chapter-copy p{font-size:19px;line-height:1.2;color:#577364}
.history-epilogue{min-height:240px;margin-top:0;padding:60px 230px 40px;border-top:0;isolation:isolate}
.history-epilogue:before{content:'';position:absolute;z-index:-1;inset:-95px -4vw -30px;background:url('../images/timeline/epilogue-landscape.png') center bottom/100% 100% no-repeat;pointer-events:none}
.history-epilogue>strong{top:78px;font-size:76px;color:#795b2a}
.history-epilogue .epilogue-start{font-style:italic}
.history-epilogue h2{display:flex;align-items:center;justify-content:center;gap:28px;font-size:36px;color:#173e2d}
.history-epilogue h2:before,.history-epilogue h2:after{content:'';height:1px;background:#a28a5d;flex:1;min-width:30px}
.history-caption{position:relative;z-index:1}
@media(max-width:1200px){.history-heading .hero-inscription{font-size:15px}.hero-inscription-old{left:12%}.hero-inscription-new{right:2%}.history-heading .hero-photo-label{font-size:18px}.history-epilogue{padding:45px 120px}.history-epilogue>strong{font-size:54px}.history-epilogue h2{font-size:28px}}
@media(max-width:750px){.history-heading .hero-inscription,.history-heading .hero-photo-label{display:none}.history-epilogue{padding:35px 16px}.history-epilogue h2:before,.history-epilogue h2:after{display:none}}
.hero-inscription-old{padding:6px 14px;background:linear-gradient(90deg,#faf9f3e8,#faf9f390);border-left:1px solid #ae9360}
.history-epilogue>strong{text-shadow:0 2px 12px #faf9f3,0 0 24px #faf9f3}
/* Balanced chapters and a compact landscape closing. */
.lane-2 .chapter-number,.lane-3 .chapter-number{font-size:94px}
.lane-2,.lane-3{gap:16px}
.lane-2 .chapter-copy h2,.lane-3 .chapter-copy h2{font-size:28px}
.lane-2 .chapter-motto,.lane-3 .chapter-motto{font-size:17px;letter-spacing:1px}
.lineage-html-node h3{white-space:normal}
.lineage-html-node p{white-space:normal}
.lineage-html-node[data-node-id="commercial"] h3,.lineage-html-node[data-node-id="private"] h3,.lineage-html-node[data-node-id="autonomy49"] h3,.lineage-html-node[data-node-id="autonomy51"] h3,.lineage-html-node[data-node-id="private56"] h3{font-size:18px}
.history-exhibit{position:relative;isolation:isolate}
.history-exhibit:after{content:'';position:absolute;z-index:-1;pointer-events:none;left:0;right:0;bottom:0;height:620px;background:url('../images/timeline/epilogue-landscape.png') center bottom/100% 100% no-repeat;mask-image:linear-gradient(transparent,#000 25%)}
.history-caption{justify-content:center;flex-wrap:wrap;gap:12px 28px;padding:12px 0;margin:0 auto;border-top:1px solid #b7b69f55}
.history-caption>div{display:flex;gap:22px}.history-caption span{margin:0;font-size:13px}.history-caption span:before{width:26px;margin-right:8px}.history-caption p{margin:0;padding-left:28px;border-left:1px solid #b7b69f;font-size:12px}
.history-epilogue{min-height:0;margin:0 auto;padding:22px 195px 25px;background:none}
.history-epilogue:before{display:none}
.history-epilogue>span{display:none}
.history-epilogue h2{margin:9px 0 24px;font-size:34px;gap:22px}
.history-epilogue>strong{top:17px;font-size:60px}
.history-epilogue .epilogue-start{left:20px}.history-epilogue .epilogue-end{right:20px}
@media(max-width:1000px){.history-epilogue{padding:24px 16px}.history-caption p{border:0;padding:0}.history-epilogue h2{font-size:24px}}
/* Reduce the diagram height through spacing, keeping text at its original size. */
.lineage-canvas,.lineage-connectors{height:1060px}
.lineage-lane{height:1045px}
/* Chapter periods follow the main lineage; branch dates retain their origins. */
.lane-2 .chapter-copy p,.lane-3 .chapter-copy p{font-size:16px;line-height:1.5;color:#525f4b}