/* 全站交互组件；每套独立主题在下方定义 */
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.75;background:var(--bg);color:var(--ink)}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer}a:hover{text-decoration:underline;text-underline-offset:5px}img{max-width:100%;height:auto}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(36px,5.2vw,74px);line-height:1.14;letter-spacing:-.045em;font-weight:650}h2{font-size:28px;line-height:1.4;letter-spacing:-.03em}h3{font-size:20px;line-height:1.5}p{margin-bottom:1.15em}small,.meta{font-size:14px;color:var(--muted)}[hidden]{display:none!important}.skip{position:fixed;left:20px;top:-90px;z-index:90;background:var(--paper);padding:10px 20px}.skip:focus{top:10px}.wrap{max-width:1280px;margin:auto;padding:0 48px}.brand{display:inline-flex;align-items:center;gap:12px;font-size:25px;font-weight:750;letter-spacing:-.06em;white-space:nowrap}.brand img{width:35px;height:42px;object-fit:contain}.brand small{font-size:13px;letter-spacing:0;font-weight:400;margin-left:10px}.site-head{border-bottom:1px solid var(--line)}.head-row{min-height:90px;display:flex;align-items:center;justify-content:space-between;gap:25px}.head-info{display:flex;gap:20px;align-items:center;font-size:14px}.nav{display:flex;align-items:center;gap:0;flex-wrap:wrap}.nav a{font-size:14px;padding:17px 20px;white-space:nowrap}.nav a[aria-current=page]{color:var(--accent);font-weight:700;box-shadow:inset 0 -3px var(--accent)}.mobile-toggle{display:none;border:1px solid var(--line);background:var(--paper);color:var(--ink);padding:8px 12px}.crumb{font-size:14px;color:var(--muted);padding:28px 0 22px}.page-head{max-width:820px;padding:24px 0 34px}.page-head p{max-width:660px;color:var(--muted);font-size:18px}.page-head .kicker{display:block;margin-bottom:20px;color:var(--accent);font-size:14px;letter-spacing:.1em}.page-head h1{margin-bottom:20px}.page-content{padding-bottom:80px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:20px;min-height:48px;padding:11px 22px;background:var(--accent);color:var(--onaccent);border:1px solid var(--accent);font-weight:600;line-height:1.5}.btn:hover{text-decoration:none;filter:brightness(.94)}.btn.secondary{background:transparent;color:var(--ink);border-color:var(--line)}.actions{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin:25px 0}.tag{display:inline-block;padding:2px 9px;border:1px solid var(--line);font-size:13px;line-height:1.8}.notice{border-left:3px solid var(--accent);padding:18px 22px;background:var(--paper);margin:25px 0}.section-title{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:60px 0 24px}.section-title h2{margin:0}.section-title a{font-size:14px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.card{background:var(--paper);padding:30px;border:1px solid var(--line);min-width:0}.card .n{font-size:14px;color:var(--accent);display:block;margin-bottom:26px}.card p{color:var(--muted);margin-bottom:0}.card h3{margin-bottom:12px}.card a.more{display:inline-block;margin-top:20px;font-size:14px;border-bottom:1px solid}.filters{display:flex;align-items:end;gap:18px;padding:24px;background:var(--paper);border:1px solid var(--line);flex-wrap:wrap}.field{display:flex;flex-direction:column;gap:8px;min-width:150px;flex:1}.field label{font-size:14px;font-weight:650}input,select,textarea{border:1px solid var(--line);background:var(--bg);color:var(--ink);padding:12px 14px;border-radius:0;min-width:0;width:100%}textarea{resize:vertical;min-height:220px;font-family:ui-monospace,monospace;font-size:14px;line-height:1.7}.filter-count{font-size:14px;color:var(--muted);padding:18px 0}.table-wrap{overflow-x:auto;border-top:1px solid var(--line)}table{width:100%;border-collapse:collapse;text-align:left;font-size:14px}th,td{padding:18px 15px;border-bottom:1px solid var(--line);vertical-align:top}th{font-weight:500;color:var(--muted);white-space:nowrap}td strong{display:block;font-size:16px}td small{display:block;word-break:break-word;margin-top:6px;font-size:12px}.download-table td:last-child{min-width:180px;text-align:right}.download-table .btn{font-size:14px;min-height:38px;padding:8px 12px}.text-button{border:0;background:none;color:var(--ink);padding:8px;text-decoration:underline;font-size:14px}.empty{padding:36px;border:1px dashed var(--line);text-align:center}.search-bar{display:flex;gap:12px;margin:0 0 28px}.search-bar input{padding:18px 20px;font-size:18px}.result{border-bottom:1px solid var(--line);padding:26px 0}.result h2{font-size:23px;margin:5px 0 10px}.result p{margin:0;color:var(--muted)}.result a{display:block}.faq{border-bottom:1px solid var(--line);padding:22px 0}.faq summary{font-size:19px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px}.faq summary:after{content:'＋';color:var(--accent)}.faq[open] summary:after{content:'−'}.faq p{color:var(--muted);max-width:880px;padding-top:20px}.article-shell{display:grid;grid-template-columns:210px 1fr;gap:50px;align-items:start}.toc{position:sticky;top:30px;font-size:14px;border-top:2px solid var(--accent);padding-top:20px}.toc a{display:block;padding:8px 0}.article-body{max-width:780px}.article-body h2{margin:45px 0 20px;scroll-margin-top:25px}.article-body h2:first-child{margin-top:0}.article-body li{margin-bottom:14px}.article-body ol,.article-body ul{padding-left:25px}.codebox{position:relative;margin:25px 0;background:var(--code);color:var(--codetext);border:1px solid var(--line)}pre{overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;padding:25px;margin:0;font:14px/1.8 ui-monospace,monospace}.codebox button{display:block;margin:0 20px 15px auto;background:transparent;color:inherit;border:1px solid currentColor;padding:6px 12px;font-size:13px}.tool-shell{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:26px}.tool-panel{padding:30px;border:1px solid var(--line);background:var(--paper)}.tool-panel h2{font-size:24px}.tool-panel .field{margin-bottom:20px}.tool-output{padding:22px;background:var(--bg);border:1px solid var(--line);min-height:100px;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.8}.status-message{font-size:14px;min-height:28px;margin-top:12px}.checklist label{display:block;padding:13px 0;border-bottom:1px solid var(--line)}.checklist input{width:auto;margin-right:12px;accent-color:var(--accent)}.source-note{font-size:14px;color:var(--muted);margin-top:45px;padding-top:20px;border-top:1px solid var(--line)}.source-note a{text-decoration:underline}.site-foot{border-top:1px solid var(--line);padding:40px 0;margin-top:30px}.foot-row{display:flex;justify-content:space-between;gap:30px;font-size:14px}.foot-row p{color:var(--muted);font-size:13px;max-width:500px;margin:15px 0 0}.foot-links{display:flex;gap:24px;flex-wrap:wrap;align-content:start}.toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);padding:12px 24px;background:var(--ink);color:var(--bg);z-index:100;max-width:90%;font-size:14px}.home-intro p{max-width:480px}.big-logo{width:150px;height:170px;object-fit:contain}.version-line{display:flex;align-items:center;gap:20px;font-size:14px;padding:20px 0;border-bottom:1px solid var(--line)}.home-links{display:grid;grid-template-columns:repeat(3,1fr);margin:50px 0 0}.home-links a{border-top:1px solid var(--line);padding:25px 20px 25px 0}.home-links b{display:block;font-size:22px}.home-links small{display:block;margin-top:10px}.home-links a span{float:right;margin-right:25px}.home-features{padding:25px 0 55px}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
/* 01 钴蓝航图：航线图、横向站点导航、蓝白分区 */
body.cobalt{--bg:#f5f8ff;--paper:#fff;--ink:#122a56;--muted:#5c6d86;--accent:#164df0;--onaccent:#fff;--line:#c8d4ec;--code:#14264b;--codetext:#e9efff}.cobalt .site-head{background:#fff}.cobalt .nav{border-top:1px solid var(--line);justify-content:space-between}.cobalt .nav a{padding:17px 5px;position:relative}.cobalt .nav a:before{content:'';display:inline-block;width:7px;height:7px;border:1px solid var(--accent);border-radius:50%;margin-right:8px}.cobalt .home-hero{display:grid;grid-template-columns:1fr 1.1fr;gap:45px;padding:68px 0 55px}.cobalt .home-hero h1{font-size:clamp(48px,5.8vw,78px);font-weight:750;color:var(--accent)}.cobalt .home-hero .kicker{font-size:14px;margin-bottom:30px}.route-board{border:1px solid var(--accent);background:var(--accent);color:white;padding:22px 28px;align-self:stretch;display:flex;flex-direction:column;justify-content:space-between;min-height:390px}.route-board .board-head{display:flex;justify-content:space-between;font-size:14px}.route-board svg{width:100%;height:auto;max-height:270px;overflow:visible}.route-board .board-foot{font-size:13px;display:flex;gap:20px;justify-content:space-between;border-top:1px solid #ffffff55;padding-top:15px}.cobalt .platform-strip{display:grid;grid-template-columns:repeat(5,1fr);border:1px solid var(--line);background:#fff}.platform-strip a{padding:24px;border-right:1px solid var(--line)}.platform-strip a:last-child{border:0}.platform-strip b{font-size:18px;display:block}.platform-strip small{display:block;margin-top:8px}.cobalt .page-head{border-left:5px solid var(--accent);padding-left:30px;margin:20px 0 40px}.cobalt .card{border-top:3px solid var(--accent)}
/* 02 陶土字巷：竖排中文、窄巷留白、棕粉双色 */
body.clay{--bg:#f5e8e0;--paper:#fff7f1;--ink:#442822;--muted:#826358;--accent:#8c3f29;--onaccent:#fff7f1;--line:#ccafa2;--code:#442822;--codetext:#fce8db}.clay .wrap{max-width:1360px}.clay .head-row{min-height:100px}.clay .brand{font-family:Georgia,serif;font-size:32px}.clay .nav{justify-content:center;border-top:1px solid var(--line)}.clay .nav a{padding:16px 22px;border-right:1px solid var(--line)}.clay .nav a:first-child{border-left:1px solid var(--line)}.clay h1,.clay h2{font-family:"Songti SC","Noto Serif CJK SC","SimSun",serif;font-weight:500}.clay .home-hero{min-height:560px;display:grid;grid-template-columns:170px 1fr 230px;gap:60px;padding:65px 0 45px}.clay .vertical-title{writing-mode:vertical-rl;font-size:100px;line-height:1.4;letter-spacing:.13em;margin:0;font-family:"Songti SC","SimSun",serif;font-weight:400}.clay .home-intro{padding-top:18px;max-width:500px}.clay .home-intro h2{font-size:42px;line-height:1.45;margin-bottom:34px}.clay .side-colophon{border-left:1px solid var(--line);padding-left:30px;display:flex;flex-direction:column;justify-content:space-between}.clay .side-colophon .big-logo{width:95px;height:110px}.clay .side-colophon p{font-size:14px;margin-top:25px}.clay .chop{border:1px solid var(--accent);display:inline-block;font-size:14px;padding:7px 12px;align-self:flex-start}.clay .chapter-links{border-top:3px double var(--line);display:grid;grid-template-columns:1fr 1fr 1fr}.chapter-links a{padding:28px 35px;border-right:1px solid var(--line)}.chapter-links a:first-child{padding-left:0}.chapter-links a:last-child{border:0}.chapter-links b{display:block;font-size:25px;font-family:"Songti SC","SimSun",serif;margin:10px 0}.clay .btn{border-radius:0;padding:12px 26px}.clay .grid{gap:0}.clay .card{background:none;border-width:1px 0;padding:35px 35px 35px 0}.clay .card+.card{padding-left:30px;border-left:1px solid var(--line)}.clay .page-head{padding-bottom:36px;border-bottom:3px double var(--line);max-width:none}.clay .page-head h1{font-size:60px}.clay .page-content{padding-top:35px}.clay .toc{border-top:3px double var(--line)}
/* 03 酸柠索引：深墨色清单、等宽编号、酸黄连续行 */
body.lime{--bg:#171c18;--paper:#222923;--ink:#edf0e4;--muted:#acb7a5;--accent:#d9fa54;--onaccent:#17200f;--line:#475240;--code:#10150f;--codetext:#e2f1cf}.lime .site-head{border-bottom:0}.lime .head-row{border-bottom:1px solid var(--line);min-height:80px}.lime .brand small{color:var(--accent)}.lime .nav{justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:5px}.lime .nav a{padding:15px 4px;font-size:14px}.lime .nav a[aria-current]{box-shadow:none;text-decoration:underline}.lime .home-hero{padding:42px 0 25px}.lime .home-topline{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:0 0 25px;font-size:14px}.lime .home-hero h1{font-size:clamp(52px,7vw,92px);margin:40px 0 25px;letter-spacing:-.06em;font-weight:550}.lime .home-hero h1 em{font-style:normal;color:var(--accent)}.lime .index-search{display:flex;align-items:center;gap:20px;border:1px solid var(--line);padding:10px 10px 10px 20px}.lime .index-search input{border:0;background:transparent}.lime .index-table{margin-top:25px}.lime .index-entry{display:grid;grid-template-columns:70px 1.1fr 1fr 60px;align-items:center;gap:20px;padding:22px 0;border-bottom:1px solid var(--line)}.lime .index-entry:hover{background:var(--accent);color:var(--onaccent);text-decoration:none;padding-left:18px;padding-right:18px}.lime .index-entry b{font-size:29px;font-weight:500}.lime .index-entry small{color:inherit;opacity:.7}.lime .index-entry .arrow{font-size:30px;text-align:right}.lime .index-entry .n{font-family:monospace;color:var(--accent)}.lime .index-entry:hover .n{color:var(--onaccent)}.lime .card{border:0;border-top:1px solid var(--line);padding:25px 25px 25px 0;background:transparent}.lime .page-head{max-width:none;border-bottom:1px solid var(--line);margin-bottom:35px}.lime .page-head h1{color:var(--accent);font-weight:500}.lime .filters{border-color:var(--accent)}.lime .btn{border-radius:0}.lime .foot-row{font-size:13px}
/* 04 银灰展签：展陈编号、错位展签、水平游览导航 */
body.silver{--bg:#e5e8ed;--paper:#f7f8fa;--ink:#272e3c;--muted:#606979;--accent:#6846a2;--onaccent:#fff;--line:#b7bfca;--code:#30313e;--codetext:#f3f0ff}.silver .site-head{padding:0 0 25px;border-bottom:0}.silver .head-row{min-height:95px}.silver .head-info{border-left:1px solid var(--line);padding-left:20px}.silver .nav{background:var(--paper);border:1px solid var(--line);justify-content:center;box-shadow:6px 6px 0 #c8cdd6}.silver .nav a{padding:14px 18px}.silver .home-hero{display:grid;grid-template-columns:80px 1.1fr .85fr;gap:28px;padding:40px 0 50px;min-height:510px}.silver .exhibit-no{writing-mode:vertical-rl;letter-spacing:.2em;font-size:14px;color:var(--muted);border-right:1px solid var(--line);padding-right:18px}.silver .home-intro{padding:40px 10px 0 18px}.silver .home-intro h1{font-size:clamp(44px,5vw,67px);font-weight:400;line-height:1.23}.silver .home-intro h1 span{color:var(--accent)}.silver .specimen{background:linear-gradient(135deg,#f6f7f9,#d4d9e2);padding:45px 30px 20px;display:flex;flex-direction:column;align-items:center;justify-content:space-between;border:1px solid white;box-shadow:10px 15px 35px #35405415}.silver .specimen img{width:155px;height:180px;margin:5px 0 25px}.silver .specimen .caption{align-self:stretch;font-size:14px;border-top:1px solid var(--line);padding-top:17px;display:flex;justify-content:space-between}.silver .exhibit-path{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin:0 0 50px 110px}.silver .exhibit-path a{background:var(--paper);padding:22px;border-top:3px solid var(--accent)}.silver .exhibit-path a:nth-child(2){transform:translateY(18px)}.silver .exhibit-path a:nth-child(3){transform:translateY(36px)}.silver .exhibit-path b{font-size:21px;display:block;margin:16px 0}.silver .grid{gap:28px}.silver .card{border:0;box-shadow:0 2px 0 #b7bfca}.silver .page-head{margin-left:110px;max-width:800px}.silver .page-head h1{font-weight:400}.silver .page-content{border-left:1px solid var(--line);padding-left:30px;margin-left:80px}.silver .btn{border-radius:3px}.silver .filters{background:#f2f3f6}
/* 05 海盐取景：中央标识、极宽留白、下沿功能导航 */
body.salt{--bg:#edf6f2;--paper:#fff;--ink:#193d37;--muted:#53756d;--accent:#9a385f;--onaccent:#fff;--line:#b4cbc1;--code:#163c35;--codetext:#e8f7ed}.salt .head-row{min-height:80px}.salt .brand{font-weight:550}.salt .site-head{border-bottom:1px solid var(--line)}.salt .nav{justify-content:space-between;border-top:1px solid var(--line)}.salt .nav a{padding:18px 6px}.salt .home-hero{text-align:center;position:relative;display:grid;grid-template-columns:1fr 190px 1fr;align-items:center;padding:65px 0 60px;gap:35px;border-bottom:1px solid var(--line)}.salt .hero-word{font-family:"Songti SC","SimSun",serif;font-size:clamp(60px,7vw,100px);letter-spacing:.13em;font-weight:400;line-height:1.4}.salt .hero-word:first-child{text-align:right}.salt .hero-word:last-child{text-align:left}.salt .logo-frame{display:grid;place-items:center;min-height:240px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.salt .logo-frame img{width:130px;height:150px}.salt .home-intro{text-align:center;max-width:650px;margin:0 auto;padding:32px 0 25px}.salt .home-intro h1{font-size:24px;font-weight:500;letter-spacing:0}.salt .home-intro p{margin:15px auto;font-size:16px;max-width:550px;color:var(--muted)}.salt .home-intro .actions{justify-content:center}.salt .edge-labels{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);padding:20px 0}.salt .feature-ribbon{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);margin:25px 0 50px}.salt .feature-ribbon a{padding:25px;border-right:1px solid var(--line)}.salt .feature-ribbon a:last-child{border:0}.salt .feature-ribbon b{display:block;font-size:22px;font-weight:500}.salt .feature-ribbon small{display:block;margin-top:8px}.salt .page-head{margin:20px auto 45px;text-align:center;max-width:850px}.salt .page-head h1{font-family:"Songti SC","SimSun",serif;font-weight:400;letter-spacing:.06em}.salt .page-head p{margin:0 auto}.salt .card{border:0;border-top:1px solid var(--line);background:transparent}.salt .btn{border-radius:100px;padding-left:28px;padding-right:28px}.salt .faq{padding:27px 15px}.salt .article-shell{grid-template-columns:1fr 210px}.salt .article-body{grid-column:1;grid-row:1}.salt .toc{grid-column:2;grid-row:1}
@media(min-width:1600px){.wrap{max-width:1440px}.home-hero{min-height:530px}}
@media(max-width:1050px){.wrap{padding:0 30px}.head-info>span{display:none}.nav{justify-content:flex-start!important}.nav a{padding:14px!important}.clay .home-hero{grid-template-columns:130px 1fr 170px;gap:30px}.clay .vertical-title{font-size:78px}.clay .side-colophon{padding-left:20px}.silver .home-hero{grid-template-columns:45px 1.1fr .8fr}.silver .home-intro{padding-left:0}.silver .exhibit-path{margin-left:74px;gap:20px}.silver .page-head{margin-left:70px}.silver .page-content{margin-left:45px}.grid{gap:15px}.card{padding:24px}.cobalt .home-hero{gap:25px}.platform-strip a{padding:20px 12px}.article-shell{gap:30px;grid-template-columns:170px 1fr}}
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