:root{--primary:#087E78;--primary-deep:#075C58;--teal:#159E98;--mint:#66C7AC;--mint-soft:#E9F8F1;--sea:#3AA8B3;--coral:#DB796C;--amber:#B88128;--lavender:#987EC8;--background:#F7FBFA;--surface:#fff;--surface-soft:#F0F8F5;--title:#203238;--body:#34484C;--muted:#586B70;--border:#DDEAE6;--footer:#163B3A}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--background);color:var(--body);font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.78}a{color:var(--primary-deep);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}button,input,select{font:inherit}.wrap{width:min(100% - 64px,1280px);margin-inline:auto}h1,h2,h3{color:var(--title);line-height:1.34;letter-spacing:-.025em}h1{font-size:clamp(28px,3.5vw,42px)}h2{font-size:clamp(22px,2.25vw,27px)}h3{font-size:19px}p{margin:.6em 0 1em}.site-header{background:#fff;position:relative;z-index:20;border-bottom:1px solid var(--border)}.header-row{min-height:79px;display:flex;align-items:center;gap:26px}.brand{display:flex;align-items:center;gap:9px;white-space:nowrap;color:var(--primary-deep);font-weight:850;font-size:20px}.brand .logo{width:136px;max-height:45px;object-fit:contain}.brand-word{letter-spacing:.02em}.desktop-nav{display:flex;justify-content:center;align-items:center;gap:clamp(12px,2vw,30px);flex:1}.desktop-nav a{font-size:15px;color:#42575a;font-weight:650;white-space:nowrap}.desktop-nav a[aria-current]{color:var(--primary);position:relative}.desktop-nav a[aria-current]:after{content:"";height:3px;background:var(--primary);position:absolute;bottom:-26px;left:0;right:0;border-radius:4px}.header-actions{margin-left:auto;display:flex;gap:12px;align-items:center}.search-action{padding:10px 14px;background:var(--mint-soft);border-radius:11px;white-space:nowrap;font-weight:750}.menu-toggle{display:none}.category-line{border-top:1px solid var(--border);background:#f3fbf7}.category-scroll{display:flex;gap:9px;overflow-x:auto;scrollbar-width:none;padding:10px 0}.category-scroll a{flex:none;padding:6px 12px;background:#fff;border:1px solid var(--border);border-radius:20px;font-size:13px;font-weight:700}.menu-mask{position:fixed;inset:0;background:#092b2dcc;z-index:25}.mobile-nav{position:fixed;right:0;top:0;bottom:0;width:min(340px,86vw);background:#fff;z-index:26;transform:translateX(105%);transition:transform .2s;display:flex;flex-direction:column;gap:5px;padding:32px 20px;box-shadow:-10px 0 28px #0002;visibility:hidden}.mobile-nav.is-open{transform:none;visibility:visible}.mobile-nav>a{padding:11px;border-bottom:1px solid var(--border)}.menu-close{align-self:flex-end;border:0;background:none;font-size:33px;cursor:pointer;min-width:44px;min-height:44px}
.hero{background:linear-gradient(115deg,#075a57,#07857e 66%,#42b2a0);color:#fff}.hero-inner{min-height:375px;display:grid;grid-template-columns:1fr .85fr;gap:50px;align-items:center}.hero h1{color:#fff;max-width:590px}.hero p{font-size:17px;max-width:600px;color:#e3f8f1}.hero-kicker{display:inline-block;background:#ffffff25;border:1px solid #ffffff55;padding:5px 13px;border-radius:40px;font-size:13px;font-weight:700}.hero-visual{height:270px;position:relative;overflow:hidden;border-radius:20px;background:radial-gradient(circle at 20% 30%,#7ee2c8aa,transparent 40%),linear-gradient(135deg,#1e918d,#176475);border:1px solid #ffffff40;display:grid;place-items:center}.hero-image{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.hero-art{display:flex;flex-direction:column;gap:12px;align-items:center;font-size:18px;font-weight:800;color:white;text-shadow:0 2px 8px #053f42}.hero-art>span{font-size:78px}.hero-image+.hero-art{display:none}.btn{background:var(--primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;padding:10px 19px;border-radius:10px;font-weight:750;min-height:44px;border:none;cursor:pointer}.btn.bright{background:#fff;color:var(--primary-deep)}.hero-link{color:white;margin-left:18px;font-weight:700}.section{padding-top:68px;padding-bottom:8px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:15px;margin-bottom:24px}.section-head h2{margin:4px 0}.eyebrow{color:var(--primary);font-size:13px;font-weight:800;letter-spacing:.03em}.board-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.board-chip{background:#fff;border:1px solid var(--border);border-radius:14px;padding:19px;display:flex;gap:6px;flex-direction:column;box-shadow:0 6px 15px #104f4510}.board-chip>span{font-size:27px}.board-chip b{color:var(--title)}.board-chip small{color:var(--muted)}.feature-layout{display:grid;grid-template-columns:1.16fr .84fr;gap:35px}.feature-layout>div>h2{margin:5px 0 17px}.topic-card{background:white;border:1px solid var(--border);border-radius:14px;overflow:hidden;min-width:0}.topic-card .topic-img,.topic-card .image-fallback{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}.image-fallback{display:flex!important;flex-direction:column;align-items:center;justify-content:center;gap:8px;background:linear-gradient(140deg,#c8f2e6,#d9eef2 55%,#eae8f9);color:#115b5a;min-height:120px}.image-fallback>span{font-size:40px}.image-fallback small{font-size:14px;font-weight:700}.topic-copy{padding:18px}.topic-copy h3{margin:7px 0}.topic-copy p{font-size:14px;color:var(--muted);line-height:1.7}.tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}.tags span{font-size:12px;background:var(--mint-soft);color:#225e5b;border-radius:5px;padding:3px 9px}.editor-list{background:#fff;border:1px solid var(--border);padding:26px;border-radius:15px;align-self:end}.editor-list a{display:flex;align-items:center;gap:16px;padding:19px 0;border-bottom:1px solid var(--border);font-weight:750}.editor-list a:last-child{border:none}.editor-list a span{color:var(--coral);font-weight:850;font-size:20px}.topic-flow{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.topic-card.compact{display:block}.topic-card.compact .topic-copy{padding:17px 20px}.topic-card.compact h3{font-size:17px}.topic-card.compact p{font-size:13px;margin-bottom:8px}.split-panel{display:grid;grid-template-columns:1fr 1.2fr;gap:38px;align-items:start}.panel-lead{background:#e3f4ef;padding:35px;border-radius:18px}.panel-lead>span{font-weight:750;color:var(--primary-deep)}.panel-list{display:grid;gap:10px}.three-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.mint-section{background:#edf8f4;padding:28px;border-radius:18px;margin-top:68px}.mini-horizontal{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.showcase{display:grid;grid-template-columns:.88fr 1fr;gap:45px;align-items:center}.showcase-visual{position:relative;min-height:270px;border-radius:15px;overflow:hidden;background:#dff2ed}.showcase-visual .cover{position:relative;z-index:2;width:100%;height:270px;object-fit:cover}.large-fallback{font-size:45px;min-height:260px}.large-fallback span{font-size:19px}.showcase-visual .cover+.large-fallback,.reader-cover .reader-image+.large-fallback{display:none!important}.link-line{border-bottom:1px solid var(--border);padding:8px 0;font-weight:700}.timeline{display:grid;grid-template-columns:repeat(4,1fr);padding:0;list-style:none;gap:20px;counter-reset:step}.timeline li{border-top:4px solid var(--mint);background:#fff;padding:20px;border-radius:0 0 13px 13px;counter-increment:step}.timeline li:before{content:counter(step,decimal-leading-zero);display:block;color:var(--primary);font-weight:900;margin-bottom:8px}.timeline b,.timeline span{display:block}.timeline span{font-size:14px;margin-top:8px;color:var(--muted)}.tag-index{display:flex;flex-wrap:wrap;gap:12px}.tag-index a{border:1px solid var(--border);background:#fff;padding:12px 18px;border-radius:9px;font-weight:700}.community-banner{margin-block:65px;background:#e5f7f1;border-radius:20px;padding:34px 40px;display:flex;align-items:center;justify-content:space-between;gap:20px}.community-banner h2{margin:4px 0}.banner-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}.site-footer{background:var(--footer);color:#d6e9e5;margin-top:65px;padding:38px 0 15px}.site-footer strong{color:white;font-size:20px}.foot-grid{display:flex;justify-content:space-between;gap:35px}.foot-grid>div{max-width:550px}.foot-grid nav{display:flex;flex-wrap:wrap;gap:18px}.foot-grid a{color:#e7f6f2}.foot-bottom{border-top:1px solid #ffffff30;margin-top:25px;padding-top:12px;font-size:13px}
.basic{padding-top:45px;min-height:65vh}.page-heading{max-width:870px;margin-bottom:35px}.page-heading h1{margin:8px 0}.page-heading p{font-size:17px}.board-filter,.service-nav{display:flex;gap:9px;flex-wrap:wrap;margin:25px 0 35px}.board-filter a,.service-nav a{border:1px solid var(--border);background:#fff;padding:9px 14px;border-radius:9px;font-weight:700;font-size:14px}.board-filter a.on{background:var(--primary);color:#fff}.listing-grid{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:28px}.listing-grid .topic-card{margin-bottom:10px}.list-head{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:18px;padding-bottom:12px;border-bottom:1px solid var(--border)}.list-head span{font-size:13px;color:var(--muted)}.aside-panel,.reader-side,.source-grid>section{background:#fff;border:1px solid var(--border);border-radius:13px;padding:23px}.aside-panel h2,.reader-side h2{font-size:20px}.aside-panel h3{font-size:16px}.pages{display:flex;flex-wrap:wrap;gap:9px;margin:25px 0}.pages a{border:1px solid var(--border);background:#fff;min-width:44px;min-height:44px;display:grid;place-items:center;border-radius:8px}.pages a[aria-current]{background:var(--primary);color:#fff}.breadcrumbs{font-size:13px;margin-bottom:26px;color:var(--muted)}.reader-grid{display:grid;grid-template-columns:minmax(0,810px) 1fr;gap:35px;align-items:start}.reader{min-width:0}.reader h1{margin:12px 0 19px}.reader-cover{position:relative;margin:25px 0}.reader-image{width:100%;aspect-ratio:16/9;object-fit:contain;background:#edf6f5;display:block;border-radius:14px}.reader-cover>.large-fallback{border-radius:14px;min-height:230px}.reader-intro,.question-box,.source-note{padding:23px 26px;background:white;border:1px solid var(--border);border-radius:13px;margin:24px 0}.reader-intro h2,.article-text h2,.question-box h2,.source-note h2{font-size:23px}.article-text{background:white;padding:27px;border:1px solid var(--border);border-radius:13px}.article-text p{line-height:1.9;margin:18px 0}.question-box{background:var(--mint-soft)}.question-box li{padding:5px 0}.source-note{font-size:14px}.reader-side .topic-card{margin-bottom:10px}.reader-side .topic-card h3{font-size:15px}.reader-side .topic-card p{display:none}.side-tip{padding:18px;border-radius:10px;background:#f2f8f6;font-size:14px}.back-link{display:inline-block;margin-top:15px;font-weight:700}.pulse-banner{padding:34px;background:linear-gradient(110deg,#d6f3e9,#e5f4fa);border-radius:16px;display:flex;justify-content:space-between;align-items:center;gap:20px}.pulse-banner h2{margin:0}.pulse-banner>span{font-size:60px}.section-label{margin:45px 0 18px}.timeline.expanded{grid-template-columns:repeat(2,1fr)}.timeline.expanded li p{font-size:15px}.source-grid,.service-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:35px 0}.service-grid>section,.service-sections>section{background:#fff;border:1px solid var(--border);padding:26px;border-radius:13px}.service-sections{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.service-sections h2,.service-grid h2{font-size:21px;margin-top:0}.search-form{background:white;border:1px solid var(--border);padding:24px;border-radius:13px;margin-bottom:30px}.search-form label{display:block;font-weight:700;margin-bottom:9px}.search-fields{display:flex;gap:10px}.search-fields input{min-width:0;flex:1}.search-fields input,.search-fields select{border:1px solid #a7bbb6;padding:10px 13px;border-radius:9px;min-height:44px;background:#fff;color:var(--title)}.results{display:grid;gap:10px}.empty-state{background:white;border:1px dashed #b9d3ca;text-align:center;padding:38px 20px;border-radius:13px}.empty-state .tag-index{justify-content:center}
:focus-visible{outline:3px solid #ce8748;outline-offset:3px}
@media(max-width:1100px){.desktop-nav{gap:12px}.desktop-nav a{font-size:13px}.brand-word{font-size:17px}.listing-grid{grid-template-columns:minmax(0,1fr) 245px}.reader-grid{grid-template-columns:minmax(0,1fr) 235px}}
@media(max-width:900px){.desktop-nav{display:none}.menu-toggle{display:block;border:1px solid var(--border);border-radius:9px;background:#fff;min-width:44px;min-height:44px;font-size:23px;cursor:pointer}.hero-inner{grid-template-columns:1fr 1fr;gap:20px}.hero-visual{height:235px}.board-grid{grid-template-columns:repeat(2,1fr)}.three-cols{grid-template-columns:repeat(2,1fr)}.feature-layout{grid-template-columns:1fr 1fr}.reader-grid{grid-template-columns:minmax(0,1fr)}.reader-side{display:none}.listing-grid{grid-template-columns:1fr}.aside-panel{display:none}.timeline{grid-template-columns:repeat(2,1fr)}}
@media(max-width:650px){.wrap{width:calc(100% - 34px)}body{font-size:16px}.header-row{min-height:66px}.brand{font-size:17px}.brand .logo{width:105px}.search-action span{display:none}.search-action{padding:8px 13px;font-size:22px;line-height:1}.category-scroll{gap:7px}.category-scroll a{font-size:12px}.hero-inner{display:block;padding-top:34px;padding-bottom:33px;min-height:0}.hero h1{font-size:30px}.hero p{font-size:16px}.hero-visual{display:none}.section{padding-top:43px}.section-head{align-items:start}.section-head>a{font-size:13px;flex:none}.board-grid{gap:9px}.board-chip{padding:13px;min-height:110px}.board-chip b{font-size:14px}.board-chip small{font-size:12px}.feature-layout,.split-panel,.showcase,.source-grid,.service-grid,.service-sections{grid-template-columns:1fr}.topic-flow,.mini-horizontal{grid-template-columns:1fr}.three-cols{grid-template-columns:1fr}.editor-list{padding:16px}.panel-lead{padding:22px}.mint-section{margin-top:35px;padding:18px}.showcase-visual{min-height:195px}.showcase-visual .cover{height:210px}.timeline,.timeline.expanded{grid-template-columns:1fr;gap:9px}.timeline li{padding:16px}.community-banner{padding:21px;display:block;margin-block:42px}.banner-actions{margin-top:15px}.foot-grid{display:block}.foot-grid nav{margin-top:22px}.basic{padding-top:25px}.page-heading{margin-bottom:22px}.page-heading h1{font-size:29px}.page-heading p{font-size:16px}.board-filter{gap:7px}.board-filter a{padding:8px 10px;font-size:12px}.reader-intro,.article-text,.question-box,.source-note{padding:19px}.search-fields{flex-wrap:wrap}.search-fields input{flex-basis:100%}.search-fields select{flex:1;min-width:0}.search-fields .btn{flex:none}.pulse-banner{padding:23px}.pulse-banner>span{display:none}}
@media(max-width:350px){.brand-word{font-size:14px}.brand .logo{width:83px}.search-action{padding:7px}.header-actions{gap:6px}.board-chip small{font-size:11px}}