/* 91 APP — editorial reading system */
:root{--forest:#294B3A;--forest-deep:#1D3529;--moss:#71836A;--mist:#E6ECE3;--wood:#76543B;--wood-deep:#443329;--gold:#C59A3D;--pale-gold:#F3E8C8;--canvas:#F7F5EE;--white:#fff;--ink:#26342B;--body:#343A33;--muted:#62685F;--line:#D9D8CC;--content:1220px;--reading:760px;--radius:10px;--shadow:0 8px 24px rgba(29,53,41,.055)}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:22px}
body{margin:0;background:var(--canvas);color:var(--body);font-family:system-ui,-apple-system,"Segoe UI","Noto Sans CJK SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.82;overflow-wrap:break-word}
img{display:block;max-width:100%;width:auto;height:auto;object-fit:contain}
a{color:var(--forest);text-decoration-thickness:1px;text-underline-offset:4px;overflow-wrap:anywhere}
a:hover{color:var(--wood)}
button{font:inherit}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:var(--content);margin-inline:auto;padding-inline:30px;min-width:0}
.skip-link{position:absolute;left:12px;top:-60px;z-index:100;background:var(--white);color:var(--forest-deep);padding:10px 14px;border:2px solid var(--gold);border-radius:6px}
.skip-link:focus{top:10px}
.site-header{background:var(--white);border-bottom:1px solid var(--line);position:relative;z-index:10}
.header-inner{min-height:76px;display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:12px;min-width:0;flex:0 0 auto;color:var(--forest-deep);text-decoration:none}
.brand-image{max-width:180px;max-height:36px;width:auto;height:auto}
.brand-wordmark{display:flex;align-items:baseline;gap:4px;color:var(--forest);font-size:22px;letter-spacing:.04em;line-height:1}
.brand-wordmark strong{font-size:27px;font-weight:800}.brand-wordmark span{font-size:14px;font-weight:750;letter-spacing:.14em}
.brand-tagline{font-size:12px;color:var(--muted);border-left:1px solid var(--line);padding-left:12px;line-height:1.4;max-width:130px}
.primary-nav{display:flex;align-items:center;justify-content:center;gap:clamp(12px,1.8vw,24px);flex:1;min-width:0}
.primary-nav a,.route-link{display:inline-flex;align-items:center;min-height:44px;color:var(--body);font-size:14px;text-decoration:none;white-space:normal;border-bottom:2px solid transparent}
.primary-nav a[aria-current=page],.route-link[aria-current=page]{color:var(--forest);font-weight:700;border-bottom-color:var(--gold)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.route-link{color:var(--forest);font-weight:650}
.menu-toggle{min-height:44px;padding:8px 13px;border:1px solid var(--forest);border-radius:7px;background:var(--forest);color:var(--white);display:inline-flex;align-items:center;gap:9px;cursor:pointer}
.menu-toggle:hover{background:var(--forest-deep)}.menu-icon{font-size:19px;line-height:1;color:var(--pale-gold)}
.site-index{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px;padding-block:22px 26px;background:var(--white);border-bottom:1px solid var(--line)}
.site-index[hidden]{display:none}
.index-group{min-width:0}.index-group h2{font-size:14px;color:var(--wood);margin:0 0 9px;padding-bottom:7px;border-bottom:1px solid var(--line)}
.index-group ul,.footer-group ul{list-style:none;padding:0;margin:0}.index-group li+li{margin-top:4px}
.index-group a{display:flex;flex-direction:column;gap:1px;padding:5px 6px;border-radius:5px;text-decoration:none;color:var(--body);min-width:0}
.index-group a:hover,.index-group a[aria-current=page]{background:var(--mist);color:var(--forest-deep)}.index-group a strong{font-size:14px;font-weight:700}.index-group a span{font-size:12px;color:var(--muted);line-height:1.45}
.home-main{padding-top:38px;padding-bottom:72px}
.home-hero{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);align-items:center;gap:34px;padding:34px 0 48px;border-bottom:1px solid var(--line)}
.hero-copy{min-width:0}.brand-context{font-size:13px;color:var(--muted);margin:0 0 14px}.eyebrow{margin:0 0 10px;color:var(--wood);font-size:12px;font-weight:750;letter-spacing:.12em;text-transform:none}
h1,h2,h3{color:var(--ink);line-height:1.35;overflow-wrap:anywhere}
h1{font-size:44px;letter-spacing:-.035em;margin:0 0 14px;font-weight:780}
h2{font-size:27px;letter-spacing:-.02em;margin:0 0 14px;font-weight:730}
h3{font-size:19px;margin:0 0 8px;font-weight:700}
p{margin:0 0 15px}.hero-claim{font-size:22px;line-height:1.55;color:var(--forest-deep);font-weight:650;max-width:620px;margin-bottom:13px}.hero-lead{max-width:640px;color:var(--muted);font-size:17px}
.hero-links,.inline-links,.service-links{display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px;margin-top:22px}
.text-link{display:inline-flex;align-items:center;gap:8px;min-height:44px;font-weight:700;text-decoration:none;border-bottom:1px solid var(--gold)}.link-primary{background:var(--forest);color:var(--white);padding:8px 15px;border-radius:6px;border:1px solid var(--forest)}.link-primary:hover{color:var(--white);background:var(--forest-deep)}.secondary-link{border-bottom-color:var(--line);font-weight:600}
.hero-media,.home-media,.article-figure{margin:0;min-width:0;max-width:100%;padding:14px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);display:flex;align-items:center;justify-content:center}
.hero-media img{max-width:min(100%,500px);max-height:310px;width:auto;height:auto}.home-hero.no-media{grid-template-columns:minmax(0,1fr)}.frame-section.no-media,.sound-band.no-media,.practice-section.no-media{grid-template-columns:minmax(0,1fr)}.narrative-layout.no-media,.assurance-content.no-media{grid-template-columns:minmax(0,1fr)}
.home-section{padding:58px 0;border-bottom:1px solid var(--line);min-width:0}.section-heading{max-width:700px;margin-bottom:24px}.section-heading>p:last-child{color:var(--muted);margin-bottom:0}
.observation-strip{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border:1px solid var(--line);background:var(--white);border-radius:var(--radius);overflow:hidden}
.observation-strip a{padding:20px 17px;display:flex;flex-direction:column;gap:5px;text-decoration:none;min-width:0}.observation-strip a+a{border-left:1px solid var(--line)}.observation-strip b{font-size:19px;color:var(--forest)}.observation-strip span{font-size:14px;color:var(--muted);line-height:1.55}.observation-strip a:hover{background:var(--mist)}
.frame-section{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:38px;align-items:center}.home-image-column,.home-copy-column{min-width:0}.home-media img{max-width:min(100%,440px);max-height:260px;width:auto;height:auto}.annotation-list{padding:0;margin:20px 0;list-style:none;counter-reset:annotation}.annotation-list li{display:grid;grid-template-columns:125px minmax(0,1fr);gap:14px;padding:11px 0;border-top:1px solid var(--line)}.annotation-list b{color:var(--forest)}.annotation-list span{color:var(--muted)}
.sound-band{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.8fr);gap:36px;align-items:center;background:var(--mist);padding:36px;border:1px solid #D3DED0;border-radius:12px;margin-top:52px}.sound-copy,.sound-media{min-width:0}.sound-points,.practice-steps{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.sound-points span{padding:6px 12px;border:1px solid #B9C9B5;border-radius:30px;color:var(--forest-deep);font-size:14px;background:rgba(255,255,255,.55)}.sound-band .home-media{background:var(--white)}
.narrative-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.8fr);gap:32px;align-items:center}.narrative-axis{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;counter-reset:phase}.narrative-axis div{padding:17px;border-left:3px solid var(--gold);background:var(--white);border-radius:0 7px 7px 0;min-width:0}.narrative-axis b,.narrative-axis span{display:block}.narrative-axis b{color:var(--forest);font-size:18px}.narrative-axis span{color:var(--muted);font-size:14px}.narrative-media{min-width:0}.practice-section{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:34px;align-items:center}.practice-copy,.practice-media{min-width:0}.practice-steps span{padding:7px 11px;background:var(--pale-gold);color:var(--forest-deep);border-radius:5px;font-weight:650;font-size:14px}.assurance-section{background:var(--forest-deep);color:#F7F5EE;padding:0;border:0;border-radius:12px;overflow:hidden;margin-top:54px}.assurance-heading{padding:30px 34px 22px}.assurance-heading .eyebrow{color:var(--pale-gold)}.assurance-heading h2{color:var(--white)}.assurance-heading p:last-child{max-width:760px;color:#E5E9E1;margin-bottom:0}.assurance-content{background:var(--canvas);color:var(--body);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.8fr);gap:28px;align-items:center;padding:28px 34px}.assurance-checks{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.assurance-checks div{padding:14px;border:1px solid var(--line);border-radius:7px;background:var(--white);min-width:0}.assurance-checks b,.assurance-checks span{display:block}.assurance-checks b{color:var(--forest);font-size:17px}.assurance-checks span{color:var(--muted);font-size:14px}.assurance-media .home-media{background:var(--white)}.service-links{padding:0 34px 28px;margin:0;background:var(--canvas)}.service-links a{font-size:14px;font-weight:650}
.article-shell{padding-top:24px;padding-bottom:76px;max-width:1220px}.breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;color:var(--muted);font-size:13px;margin-bottom:18px}.breadcrumbs a{text-decoration:none}.breadcrumbs [aria-current=page]{color:var(--forest);font-weight:700}
.page-intro{max-width:var(--reading);margin-bottom:32px}.page-intro .eyebrow{margin-bottom:8px}.page-intro h1{font-size:38px;margin-bottom:12px}.page-lead{font-size:17px;color:var(--muted);line-height:1.8;margin-bottom:18px}.contents-nav{padding:13px 16px;background:var(--mist);border-left:3px solid var(--gold);border-radius:0 7px 7px 0}.contents-nav strong{font-size:13px;color:var(--forest)}.contents-nav ol{display:flex;flex-wrap:wrap;gap:5px 18px;margin:5px 0 0;padding-left:20px}.contents-nav li{font-size:13px}.contents-nav a{text-decoration:none}
.article-figure{max-width:440px;margin:0 0 30px 0}.article-figure img{max-width:100%;max-height:260px;width:auto;height:auto}
.content-section{max-width:var(--reading);padding:26px 0 30px;border-bottom:1px solid var(--line);scroll-margin-top:20px}.content-section h2{font-size:25px;margin:0 0 15px}.content-section p:last-child{margin-bottom:0}.content-section ul,.content-section ol{padding-left:1.35em}.content-section li{padding-left:3px;margin:7px 0}.section-number{font-size:12px;font-weight:800;color:var(--gold);letter-spacing:.1em;margin:0 0 5px}
.dimension-grid,.scene-grid,.risk-grid,.collection-list,.rights-grid,.access-compare,.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.dimension-grid article,.scene-grid article,.risk-grid article,.collection-list article,.rights-grid article,.access-compare article,.faq-item{padding:16px;border:1px solid var(--line);border-radius:8px;background:var(--white);min-width:0}.dimension-grid article h3,.scene-grid article h3,.risk-grid article h3,.collection-list article h3,.rights-grid article h3,.access-compare article h3{color:var(--forest)}.dimension-grid article p,.scene-grid article p,.risk-grid article p,.collection-list article p,.rights-grid article p,.access-compare article p,.faq-item p{font-size:15px;color:var(--muted);margin:0}.scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.collection-list{grid-template-columns:1fr}.collection-list article{border-left:3px solid var(--gold)}
.term-list{padding:16px 18px;background:var(--white);border:1px solid var(--line);border-radius:8px}.term-list p{margin:7px 0}.term-list strong{color:var(--forest)}.story-note{padding:20px 22px;background:#F0EEE5;border-left:3px solid var(--wood);border-radius:0 8px 8px 0}.story-note p{margin-bottom:13px}.story-note p:last-child{margin-bottom:0}.check-flow,.process-list,.storyboard,.timeline{list-style:none;padding:0!important;counter-reset:step}.check-flow li,.process-list li,.storyboard li,.timeline li{position:relative;padding:13px 14px 13px 54px!important;margin:9px 0!important;background:var(--white);border:1px solid var(--line);border-radius:7px;min-width:0}.check-flow li:before,.process-list li:before,.storyboard li:before,.timeline li:before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;left:14px;top:13px;color:var(--gold);font-weight:800}.check-flow strong,.process-list b,.storyboard b,.timeline b{color:var(--forest)}
.relation-map{padding:18px;background:var(--mist);border-radius:8px;text-align:center}.relation-map p{margin:8px 0}.relation-map strong{color:var(--forest)}.relation-arrow{color:var(--wood);font-size:20px}.index-list{padding-left:1.25em}.index-list li{padding:9px 0;border-bottom:1px solid var(--line)}.evidence-levels{padding:14px 18px;background:var(--white);border:1px solid var(--line);border-radius:8px}.evidence-levels p{padding:7px 0;margin:0;border-bottom:1px solid #ECEBE4}.evidence-levels p:last-child{border-bottom:0}.evidence-levels b{color:var(--forest)}.checklist{list-style:none;padding:0!important}.checklist li{position:relative;padding:9px 8px 9px 30px!important;border-bottom:1px solid var(--line)}.checklist li:before{content:"✓";position:absolute;left:5px;color:var(--forest);font-weight:800}.faq-grid{grid-template-columns:1fr}.faq-item h3{font-size:17px}.faq-item{padding:16px 18px}.faq-item p{line-height:1.75}
.related-reading{max-width:var(--reading);margin-top:38px;padding:22px;background:var(--white);border:1px solid var(--line);border-radius:9px}.related-reading h2{font-size:20px;margin-bottom:10px}.related-reading ul{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 16px}.related-reading li{min-width:0;padding:8px 0;border-bottom:1px solid #ECEBE4}.related-reading a{display:block;font-weight:700;text-decoration:none}.related-reading span{display:block;color:var(--muted);font-size:13px;line-height:1.5}
.site-footer{background:#EDEDE4;border-top:1px solid var(--line);color:var(--body)}.footer-inner{display:grid;grid-template-columns:minmax(190px,1.1fr) minmax(0,3fr) minmax(120px,.8fr);gap:34px;padding-top:38px;padding-bottom:36px}.footer-brand,.footer-index,.footer-service{min-width:0}.footer-wordmark{display:inline-block;color:var(--forest-deep);font-size:22px;font-weight:800;letter-spacing:.08em;text-decoration:none}.footer-brand p{font-size:14px;color:var(--muted);margin:9px 0}.footer-note{font-size:12px!important}.footer-index{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.footer-group h2,.footer-service h2{font-size:14px;color:var(--wood);margin:0 0 9px}.footer-group li{margin:3px 0}.footer-group a,.footer-service a{font-size:13px;color:var(--body);text-decoration:none}.footer-group a[aria-current=page]{font-weight:800;color:var(--forest);text-decoration:underline;text-underline-offset:3px}.footer-service{display:flex;flex-direction:column;align-items:flex-start;gap:5px}.footer-bottom{border-top:1px solid var(--line)}.footer-bottom .container{display:flex;gap:20px;align-items:center;min-height:48px;font-size:12px;color:var(--muted)}.footer-bottom a{color:var(--muted);text-decoration:none}
.mobile-quick-nav{display:none}
@media(max-width:1100px){.container{padding-inline:22px}.header-inner{gap:16px}.brand-tagline{display:none}.primary-nav{gap:12px}.primary-nav a{font-size:13px}.site-index{grid-template-columns:repeat(3,minmax(0,1fr))}.footer-inner{grid-template-columns:1fr 2.5fr}.footer-service{grid-column:1/-1;flex-direction:row;flex-wrap:wrap;gap:8px 18px}.footer-service h2{width:100%}}
@media(max-width:820px){.header-inner{min-height:70px;gap:14px}.primary-nav{display:none}.brand{margin-right:auto}.brand-tagline{display:block;max-width:112px;font-size:11px}.header-actions{gap:10px}.site-index{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.home-hero{grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:22px}.hero-claim{font-size:20px}.observation-strip{grid-template-columns:repeat(3,minmax(0,1fr))}.observation-strip a:nth-child(4){border-left:0;border-top:1px solid var(--line)}.observation-strip a:nth-child(5){border-top:1px solid var(--line)}.frame-section,.sound-band,.narrative-layout,.practice-section,.assurance-content{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px}.footer-inner{grid-template-columns:1fr}.footer-index{grid-template-columns:repeat(3,minmax(0,1fr))}.footer-service{grid-column:auto}.page-intro h1{font-size:35px}}
@media(max-width:600px){body{font-size:16px}.container{padding-inline:16px}.header-inner{min-height:66px;gap:8px}.brand{gap:8px}.brand-wordmark{font-size:19px}.brand-wordmark strong{font-size:24px}.brand-wordmark span{font-size:12px}.brand-tagline{font-size:10px;max-width:92px;padding-left:8px}.header-actions{gap:8px}.route-link{font-size:13px;min-height:42px}.menu-toggle{padding:7px 9px;min-height:42px;font-size:13px;gap:5px}.site-index{grid-template-columns:minmax(0,1fr);gap:13px;padding-block:16px 20px}.index-group h2{margin-bottom:5px}.index-group ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:3px 8px}.index-group li+li{margin-top:0}.index-group a{padding:7px 5px}.index-group a strong{font-size:14px}.index-group a span{font-size:12px}
.home-main{padding-top:20px;padding-bottom:52px}.home-hero{grid-template-columns:minmax(0,1fr);gap:20px;padding:22px 0 32px}.home-hero h1{font-size:33px}.hero-claim{font-size:19px}.hero-lead{font-size:16px}.hero-media{padding:10px}.hero-media img{max-height:230px}.home-section{padding:36px 0}.section-heading{margin-bottom:18px}h2{font-size:23px}.observation-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.observation-strip a{padding:14px 12px}.observation-strip a:nth-child(3){border-left:0;border-top:1px solid var(--line)}.observation-strip a:nth-child(4){border-left:1px solid var(--line);border-top:1px solid var(--line)}.observation-strip a:nth-child(5){grid-column:1/-1;border-left:0;border-top:1px solid var(--line)}
.frame-section,.sound-band,.narrative-layout,.practice-section,.assurance-content{grid-template-columns:minmax(0,1fr);gap:18px}.frame-section .home-image-column{order:0}.frame-section .home-copy-column{order:1}.home-media{padding:10px}.home-media img{max-height:190px}.annotation-list li{grid-template-columns:100px minmax(0,1fr);gap:10px}.sound-band{padding:20px;margin-top:32px}.sound-media{order:-1}.narrative-axis{grid-template-columns:minmax(0,1fr)}.practice-media{order:-1}.assurance-section{margin-top:32px}.assurance-heading{padding:22px 18px 16px}.assurance-content{padding:18px}.assurance-checks{grid-template-columns:repeat(2,minmax(0,1fr))}.service-links{padding:0 18px 20px;gap:9px 15px}
.article-shell{padding-top:18px;padding-bottom:55px}.breadcrumbs{font-size:12px;margin-bottom:13px}.page-intro{margin-bottom:24px}.page-intro h1{font-size:30px}.page-lead{font-size:16px;line-height:1.78}.contents-nav{padding:11px 13px}.contents-nav ol{display:block}.contents-nav li{margin:3px 0}.article-figure{padding:10px;margin-bottom:20px}.article-figure img{max-height:190px}.content-section{padding:22px 0 25px}.content-section h2{font-size:22px}.dimension-grid,.scene-grid,.risk-grid,.rights-grid,.access-compare{grid-template-columns:minmax(0,1fr)}.related-reading{padding:17px;margin-top:28px}.related-reading ul{grid-template-columns:minmax(0,1fr)}.footer-inner{padding-top:28px;padding-bottom:24px;gap:22px}.footer-index{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 14px}.footer-service{gap:6px 15px}.footer-bottom .container{min-height:46px;gap:14px;flex-wrap:wrap}.mobile-quick-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));position:fixed;z-index:20;left:0;right:0;bottom:0;min-height:58px;padding:5px 12px calc(5px + env(safe-area-inset-bottom));background:rgba(255,255,255,.98);border-top:1px solid var(--line)}.mobile-quick-nav a{display:flex;align-items:center;justify-content:center;min-height:44px;color:var(--muted);text-decoration:none;font-size:14px;font-weight:650}.mobile-quick-nav a[aria-current=page]{color:var(--forest);border-top:2px solid var(--gold)}body{padding-bottom:calc(66px + env(safe-area-inset-bottom))}}
@media(max-width:360px){.brand-tagline{display:none}.header-inner{gap:6px}.route-link{font-size:12px}.menu-toggle{font-size:12px;padding-inline:7px}.observation-strip{grid-template-columns:minmax(0,1fr)}.observation-strip a,.observation-strip a:nth-child(4),.observation-strip a:nth-child(5){grid-column:auto;border-left:0;border-top:1px solid var(--line)}.observation-strip a:first-child{border-top:0}.assurance-checks{grid-template-columns:minmax(0,1fr)}.annotation-list li{grid-template-columns:minmax(0,1fr);gap:2px}}
@media(max-width:220px){.container{padding-inline:8px}.header-inner{gap:4px;min-height:60px}.brand{gap:0}.brand-wordmark{font-size:16px;gap:2px}.brand-wordmark strong{font-size:19px}.brand-wordmark span{font-size:10px}.header-actions{gap:4px}.route-link{font-size:0;min-width:24px;justify-content:center}.route-link::after{content:"路线";font-size:12px}.menu-toggle{padding:5px 6px;gap:3px;font-size:12px}.menu-toggle>span:first-child{font-size:0}.menu-toggle>span:first-child::after{content:"栏目";font-size:12px}.menu-icon{font-size:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}