 :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;--soft-line:#E8E6DC;--content:1220px;--reading:760px}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;background:var(--canvas);color:var(--body);font-family:system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.82;overflow-wrap:break-word}figure{margin:0}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}a:hover{color:var(--wood)}button{font:inherit}button,a{touch-action:manipulation}:focus-visible{outline:3px solid var(--gold);outline-offset:3px}.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:1000;background:var(--white);color:var(--forest-deep);padding:10px 14px;border:2px solid var(--gold);border-radius:6px}.skip-link:focus{top:12px}
.site-header{position:relative;z-index:20;background:var(--white);border-bottom:1px solid var(--line)}.header-inner{min-height:76px;display:flex;align-items:center;gap:26px}.brand{display:flex;align-items:center;gap:12px;min-width:0;text-decoration:none;flex:0 1 290px}.brand-image{max-width:180px;max-height:36px;padding:2px 0}.brand-wordmark{font-size:25px;letter-spacing:-1px;font-weight:800;color:var(--forest-deep);white-space:nowrap}.brand-wordmark b{color:var(--wood);font-size:19px}.brand-tagline{font-size:12px;color:var(--muted);line-height:1.35;border-left:1px solid var(--line);padding-left:12px;max-width:128px}.primary-nav{display:flex;align-items:center;justify-content:center;gap:clamp(10px,1.5vw,22px);flex:1;min-width:0}.primary-nav a,.route-link{font-size:14px;text-decoration:none;color:var(--body);padding:10px 0;border-bottom:2px solid transparent;white-space:normal}.primary-nav a[aria-current=page],.route-link[aria-current=page]{color:var(--forest);border-color:var(--gold);font-weight:700}.header-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto}.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:10px;cursor:pointer}.menu-toggle:hover,.menu-toggle.is-open{background:var(--forest-deep)}.menu-icon{width:14px;height:10px;border-top:2px solid currentColor;border-bottom:2px solid currentColor;position:relative}.menu-icon::after{content:"";position:absolute;left:0;right:0;top:3px;border-top:2px solid currentColor}.menu-panel{padding-block:22px 28px;border-top:1px solid var(--soft-line)}.menu-panel[hidden]{display:none}.menu-panel-heading{display:flex;align-items:baseline;gap:18px;margin-bottom:16px}.menu-panel-heading p{margin:0;color:var(--muted)}.menu-groups{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px}.menu-group{min-width:0;border-left:2px solid var(--mist);padding-left:12px}.menu-group h2{font-size:15px;color:var(--forest);margin:0 0 9px}.menu-group ul,.footer-index ul,.footer-service ul{list-style:none;padding:0;margin:0}.menu-group li+li{margin-top:8px}.menu-group a{display:block;text-decoration:none;padding:3px 0;min-width:0}.menu-group a span{display:block;font-size:14px;font-weight:700;color:var(--ink)}.menu-group a small{display:block;font-size:12px;line-height:1.45;color:var(--muted);overflow-wrap:anywhere}.menu-group a[aria-current=page] span{color:var(--wood);text-decoration:underline;text-underline-offset:3px}
.site-main{padding-block:36px 80px;min-width:0}.article-shell{max-width:980px}.breadcrumbs{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:18px;flex-wrap:wrap}.breadcrumbs a{text-decoration:none}.article-heading{max-width:850px;margin-bottom:24px}.article-heading h1{font-size:clamp(27px,3.2vw,39px);line-height:1.22;letter-spacing:-.025em;color:var(--ink);margin:0 0 14px}.article-lead{font-size:17px;line-height:1.85;color:#4b554b;margin:0;max-width:820px}.article-toc{display:flex;gap:16px;align-items:flex-start;border-block:1px solid var(--line);padding:13px 0;margin:24px 0 38px}.article-toc>span{font-size:13px;color:var(--wood);font-weight:700;flex:0 0 auto}.article-toc ol{display:flex;flex-wrap:wrap;gap:8px 20px;margin:0;padding-left:18px;min-width:0}.article-toc li{font-size:13px;padding-right:4px}.article-toc a{text-decoration:none;color:var(--muted)}.article-image{width:min(100%,440px);max-height:260px;padding:14px;margin:10px 0 38px;background:var(--white);border:1px solid var(--line);border-radius:10px}.article-image img{max-height:230px;margin-inline:auto}.content-section{margin:0 0 54px;min-width:0}.section-heading{display:flex;align-items:flex-start;gap:13px;margin-bottom:16px}.section-number{color:var(--gold);font-size:13px;font-weight:800;letter-spacing:.08em;padding-top:6px;flex:0 0 auto}.section-heading h2{font-size:clamp(21px,2.2vw,27px);line-height:1.35;color:var(--forest-deep);margin:0}.section-copy{max-width:var(--reading)}.section-copy p,.detail-item p,.steps-list p,.timeline-list p,.qa-item p{margin:0 0 14px}.section-copy p:last-child{margin-bottom:0}.detail-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.detail-item{min-width:0;padding:17px 18px;background:rgba(255,255,255,.7);border:1px solid var(--soft-line);border-radius:9px}.detail-item h3,.steps-list h3,.timeline-list h3,.qa-item h3{font-size:17px;line-height:1.45;color:var(--wood-deep);margin:0 0 7px}.detail-item p,.steps-list p,.timeline-list p,.qa-item p{font-size:16px;color:#4e554d}.steps-list,.timeline-list{margin:0;padding:0 0 0 24px;max-width:800px}.steps-list li,.timeline-list li{padding:0 0 22px 8px}.steps-list li::marker{color:var(--gold);font-weight:800}.timeline-list{border-left:1px solid var(--gold);list-style:none}.timeline-list li{position:relative;padding-left:18px}.timeline-list li::before{content:"";position:absolute;left:-6px;top:7px;width:11px;height:11px;border-radius:50%;background:var(--gold);border:2px solid var(--canvas)}.qa-list{max-width:820px;border-top:1px solid var(--line)}.qa-item{padding:18px 0;border-bottom:1px solid var(--line)}.qa-item h3{font-size:17px;color:var(--forest);margin-bottom:8px}.compare-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.compare-list .detail-item{background:transparent;border-radius:0;border:0;border-top:2px solid var(--gold);padding:14px 5px}.editor-note{max-width:var(--reading);margin-top:18px;padding:14px 18px;background:var(--mist);border-left:3px solid var(--moss);color:var(--forest-deep)}.editor-note p{margin:0}.related-reading{margin-top:58px;padding:25px 0 0;border-top:1px solid var(--line)}.related-reading h2{font-size:21px;color:var(--forest);margin:0 0 12px}.related-reading ul{display:flex;flex-wrap:wrap;gap:10px 24px;list-style:none;padding:0;margin:0}.related-reading a{display:inline-block;padding:7px 0}
.home-main{padding-top:0}.home-hero{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:36px;align-items:center;padding-block:52px 58px;border-bottom:1px solid var(--line)}.hero-copy{min-width:0}.hero-copy h1{font-size:clamp(30px,4vw,46px);line-height:1.15;color:var(--forest-deep);margin:0 0 16px}.hero-claim{font-size:clamp(21px,2.4vw,28px);font-weight:700;line-height:1.45;color:var(--forest);margin:0 0 12px}.hero-intro{max-width:620px;color:#50594f;margin:0 0 23px;font-size:17px}.hero-links{display:flex;gap:24px;flex-wrap:wrap}.text-link{display:inline-flex;gap:9px;align-items:center;text-decoration:none;font-weight:700;padding:9px 0;border-bottom:1px solid var(--gold)}.text-link-primary{color:var(--forest-deep);border-bottom-width:2px}.home-hero-image{width:min(100%,500px);max-height:310px;padding:14px;margin:0 auto;background:var(--white);border:1px solid var(--line);border-radius:12px}.home-hero-image img{max-height:280px;margin:auto}.home-index-section{padding-block:50px 56px;border-bottom:1px solid var(--line)}.section-kicker{display:flex;align-items:center;gap:12px;margin-bottom:10px}.section-kicker span{font-size:12px;color:var(--gold);font-weight:800}.section-kicker p{margin:0;color:var(--wood);font-size:12px;font-weight:750;letter-spacing:.08em}.index-intro h2,.feature-copy h2,.sound-copy h2,.story-heading h2,.workbench-copy h2,.trust-heading h2,.home-last-entry h2{font-size:clamp(22px,2.6vw,29px);line-height:1.35;color:var(--forest-deep);margin:0 0 8px}.index-intro p,.story-heading p,.trust-heading p{margin:0;color:var(--muted)}.observation-index{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;margin-top:24px;border-block:1px solid var(--line)}.observation-index a{min-width:0;padding:18px 16px;text-decoration:none;border-right:1px solid var(--line)}.observation-index a:first-child{padding-left:0}.observation-index a:last-child{border-right:0}.observation-index b{display:block;font-size:19px;color:var(--forest);margin-bottom:5px}.observation-index span{display:block;font-size:13px;line-height:1.6;color:var(--muted)}.home-feature{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px;align-items:center;padding-block:58px;border-bottom:1px solid var(--line)}.feature-media{min-width:0}.home-feature-image{width:min(100%,440px);max-height:260px;padding:13px;background:var(--white);border:1px solid var(--line);border-radius:10px}.home-feature-image img{max-height:230px;margin:auto}.feature-copy p{max-width:700px}.annotation-list{list-style:none;padding:0;margin:18px 0 20px;border-top:1px solid var(--line)}.annotation-list li{display:grid;grid-template-columns:100px minmax(0,1fr);gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}.annotation-list b{color:var(--wood-deep);font-size:14px}.annotation-list span{font-size:14px;color:var(--muted)}.feature-copy>.text-link{margin-right:20px}.home-sound-band{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:36px;align-items:center;background:var(--mist);padding:34px;border-radius:12px;margin-block:58px}.sound-copy p{max-width:640px}.home-band-image{width:min(100%,380px);max-height:230px;padding:12px;background:var(--white);border:1px solid #cbd5c8;border-radius:9px}.home-band-image img{max-height:205px;margin:auto}.sound-points{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.sound-points span{padding:6px 12px;background:var(--white);border:1px solid #cbd5c8;border-radius:99px;font-size:13px;color:var(--forest)}.inline-links{display:flex;flex-wrap:wrap;gap:18px}.inline-links a,.story-links a,.trust-links a{font-weight:700;text-decoration:none;border-bottom:1px solid var(--gold);padding:5px 0}.home-story{padding-block:6px 58px;border-bottom:1px solid var(--line)}.story-heading{max-width:700px;margin-bottom:22px}.home-story-image{width:min(100%,430px);max-height:240px;padding:12px;margin:0 auto 24px;background:var(--white);border:1px solid var(--line);border-radius:10px}.home-story-image img{max-height:215px;margin:auto}.story-axis{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));list-style:none;padding:0;margin:0;border-top:2px solid var(--gold)}.story-axis li{padding:16px 14px 8px 0;min-width:0}.story-axis b{display:block;color:var(--forest);font-size:17px}.story-axis span{display:block;font-size:14px;color:var(--muted)}.story-links{display:flex;gap:20px;flex-wrap:wrap;margin-top:16px}.home-workbench{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:36px;align-items:center;padding-block:58px;border-bottom:1px solid var(--line)}.workbench-copy p{max-width:700px}.workbench-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;list-style:none;padding:0;margin:20px 0}.workbench-steps li{padding:9px 12px;border-left:2px solid var(--gold);background:rgba(255,255,255,.6);color:var(--forest);font-weight:700}.home-workbench-image{width:min(100%,400px);max-height:260px;padding:13px;background:var(--white);border:1px solid var(--line);border-radius:10px}.home-workbench-image img{max-height:230px;margin:auto}.home-trust{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:0;align-items:stretch;margin-block:58px}.trust-heading{background:var(--forest-deep);color:var(--white);padding:34px;border-radius:12px 0 0 12px}.trust-heading .section-kicker p{color:var(--pale-gold)}.trust-heading h2{color:var(--white)}.trust-heading p{color:#e3e9e2}.trust-content{min-width:0;background:var(--white);border:1px solid var(--line);border-left:0;border-radius:0 12px 12px 0;padding:28px;display:grid;gap:18px}.home-trust-image{width:min(100%,380px);max-height:220px;padding:12px;background:var(--canvas);border-radius:9px}.home-trust-image img{max-height:195px;margin:auto}.trust-checks{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.trust-checks span{padding:10px 12px;border-top:1px solid var(--gold);color:var(--forest);font-weight:700}.trust-links{display:flex;flex-wrap:wrap;gap:12px 22px}.trust-links a{color:var(--forest);border-color:var(--gold)}.home-hero.no-media,.home-feature.no-media,.home-sound-band.no-media,.home-workbench.no-media{grid-template-columns:minmax(0,1fr)}.home-last-entry{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:12px 0 20px}.home-last-entry h2{max-width:720px}
.site-footer{background:#F0EEE5;border-top:1px solid var(--line);padding:42px 0 18px}.footer-top{display:grid;grid-template-columns:minmax(180px,2fr) minmax(0,6fr) minmax(150px,1.5fr);gap:34px}.footer-wordmark{font-size:23px;font-weight:850;letter-spacing:-.04em;text-decoration:none;color:var(--forest-deep)}.footer-brand p{margin:12px 0;color:var(--forest)}.footer-brand .footer-small{font-size:13px;color:var(--muted)}.footer-index h2,.footer-service h2{font-size:15px;color:var(--forest-deep);margin:0 0 15px}.footer-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.footer-groups section{min-width:0}.footer-groups h3{font-size:13px;color:var(--wood);margin:0 0 8px}.footer-groups li,.footer-service li{margin:0 0 6px;font-size:13px}.footer-groups a,.footer-service a{color:var(--muted);text-decoration:none}.footer-groups a:hover,.footer-service a:hover{color:var(--forest);text-decoration:underline}.footer-bottom{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);margin-top:30px;padding-top:14px;color:var(--muted);font-size:12px}.mobile-quick-nav{display:none}
@media(max-width:1100px){.container{padding-inline:22px}.header-inner{gap:16px}.brand{flex-basis:220px}.brand-tagline{display:none}.primary-nav{gap:12px}.primary-nav a{font-size:13px}.menu-groups{grid-template-columns:repeat(3,minmax(0,1fr))}.footer-top{grid-template-columns:minmax(160px,2fr) minmax(0,6fr)}.footer-service{grid-column:2}}
@media(max-width:800px){.header-inner{min-height:68px;gap:12px}.primary-nav{display:none}.brand{flex:1 1 auto}.header-actions{gap:12px}.route-link{font-size:13px}.menu-groups{grid-template-columns:repeat(2,minmax(0,1fr))}.home-hero,.home-feature,.home-sound-band,.home-workbench,.home-trust{grid-template-columns:minmax(0,1fr)}.home-hero{padding-block:38px 42px;gap:24px}.home-hero-image{max-height:240px}.home-hero-image img{max-height:210px}.home-feature{gap:22px;padding-block:42px}.feature-media{order:2}.home-sound-band{padding:24px;margin-block:40px}.home-story{padding-bottom:42px}.home-workbench{padding-block:42px;gap:22px}.home-trust{grid-template-columns:minmax(0,1fr);padding:0;margin-block:42px}.trust-heading{border-radius:12px 12px 0 0;padding:24px}.trust-content{border-left:1px solid var(--line);border-radius:0 0 12px 12px;padding:20px}.footer-top{grid-template-columns:minmax(160px,2fr) minmax(0,6fr)}.footer-groups{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){html{scroll-padding-top:76px}body{font-size:16px;padding-bottom:calc(62px + env(safe-area-inset-bottom))}.container{padding-inline:16px}.site-main{padding-block:26px 52px}.header-inner{min-height:64px}.brand-image{max-width:145px;max-height:32px}.brand-wordmark{font-size:22px}.route-link{font-size:13px;padding:8px 0}.header-actions{gap:10px}.menu-toggle{padding:7px 9px;min-height:44px;font-size:13px;gap:7px}.menu-panel{padding-block:17px 22px}.menu-panel-heading{display:block}.menu-groups{grid-template-columns:minmax(0,1fr);gap:16px}.menu-group{padding-left:12px}.article-shell{max-width:none}.breadcrumbs{margin-bottom:13px}.article-heading{margin-bottom:20px}.article-heading h1{font-size:29px}.article-lead{font-size:16px;line-height:1.82}.article-toc{display:block;margin:18px 0 30px}.article-toc ol{margin-top:8px;gap:7px 15px}.content-section{margin-bottom:40px}.section-heading h2{font-size:22px}.detail-grid,.compare-list{grid-template-columns:minmax(0,1fr)}.detail-item{padding:15px}.article-image{max-height:200px;margin-bottom:28px}.article-image img{max-height:170px}.home-hero{padding-block:30px 34px}.hero-copy h1{font-size:34px}.hero-claim{font-size:22px}.hero-intro{font-size:16px}.home-index-section{padding-block:34px 38px}.observation-index{grid-template-columns:repeat(2,minmax(0,1fr))}.observation-index a{padding:13px 10px;border-bottom:1px solid var(--line)}.observation-index a:first-child{padding-left:10px}.observation-index a:nth-child(2n){border-right:0}.observation-index a:last-child{grid-column:1/-1;border-bottom:0}.annotation-list li{grid-template-columns:85px minmax(0,1fr)}.home-sound-band{padding:20px}.story-axis{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.story-axis li{padding:12px 8px 8px 0}.workbench-steps{grid-template-columns:repeat(2,minmax(0,1fr))}.trust-checks{grid-template-columns:repeat(2,minmax(0,1fr))}.home-last-entry{display:block}.home-last-entry .text-link{margin-top:8px}.footer-top{grid-template-columns:minmax(0,1fr);gap:28px}.footer-service{grid-column:auto}.footer-groups{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.footer-bottom{display:block}.footer-bottom span{display:block;margin:5px 0}.mobile-quick-nav{position:fixed;z-index:30;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));min-height:calc(58px + env(safe-area-inset-bottom));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-width:0;min-height:44px;text-decoration:none;color:var(--muted);font-size:14px}.mobile-quick-nav a[aria-current=page]{color:var(--forest);font-weight:800;border-top:2px solid var(--gold)}}
@media(max-width:360px){.brand-wordmark{font-size:20px}.header-inner{gap:8px}.header-actions{gap:7px}.route-link{font-size:12px}.menu-toggle{font-size:12px;padding-inline:8px}.hero-links{gap:14px}.footer-groups{grid-template-columns:minmax(0,1fr)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}
