:root{--ink:#25352e;--muted:#69736a;--paper:#f7f6f1;--white:#fff;--line:#dedfd5;--green:#304c3c;--green-light:#eaf0e6;--lime:#d4e6a3;--terracotta:#b77755;--radius:6px;--max:1240px;font-family:Arial,'Helvetica Neue','PingFang SC','Microsoft YaHei',sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;text-rendering:optimizeLegibility}
.preview-bar{padding:11px 20px;text-align:center;background:#eaf0e2;border-bottom:1px solid #d4decb;color:#455842;font-size:11px;line-height:1.65}.preview-notice{padding:13px 15px;background:#eef3e8;border:1px solid #d4decb;border-radius:4px;font-size:12px;color:#455842;line-height:1.7;margin:20px 0}.form-fieldset{border:0;padding:0;margin:0;min-width:0}.form-fieldset:disabled input,.form-fieldset:disabled select,.form-fieldset:disabled textarea{background:#f6f7f3;color:#818b7b}.button:disabled{cursor:not-allowed}.button:disabled:hover{transform:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,select,textarea{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.65}img{display:block;max-width:100%;height:auto}svg{display:block}::selection{background:var(--lime);color:var(--ink)}:focus-visible{outline:3px solid #7b9549;outline-offset:5px}h1,h2,h3,p{margin:0}p{line-height:1.7}ul{margin:0;padding-left:1.25rem}li{line-height:1.65}li+li{margin-top:10px}.container{width:min(calc(100% - 80px),var(--max));margin-inline:auto}.skip-link{position:fixed;top:-80px;left:20px;z-index:100;padding:12px 20px;background:var(--ink);color:white}.skip-link:focus{top:12px}.site-header{height:100px;background:rgba(247,246,241,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}.brand-mark{width:37px;height:40px;color:var(--green)}.brand-name{font-size:13px;line-height:1.28;font-weight:700;letter-spacing:1.6px;text-transform:uppercase}.brand-name span{display:block}.site-nav{display:flex;gap:30px;align-items:center}.nav-link{font-size:13px;line-height:1.4;color:#455448;position:relative}.nav-link:hover,.nav-link[aria-current=page]{color:var(--green);text-decoration:underline;text-underline-offset:6px}.nav-language{font-size:12px;letter-spacing:.3px;border-left:1px solid var(--line);padding-left:22px}.nav-language span{color:#92988b;margin-right:7px}.button{display:inline-flex;align-items:center;justify-content:center;gap:26px;min-height:51px;padding:15px 22px;border:1px solid var(--green);border-radius:var(--radius);background:var(--green);color:white;font-size:13px;font-weight:600;line-height:1.4;transition:background .16s,transform .16s}.button:hover{background:#203d2c;transform:translateY(-2px)}.button .arrow{font-size:20px;font-weight:400;line-height:1}.button-outline{background:transparent;color:var(--green)}.button-outline:hover{background:var(--green-light)}.button-light{background:var(--lime);color:var(--ink);border-color:var(--lime)}.button-light:hover{background:#e1efbd}.button-small{min-height:44px;padding:11px 18px;gap:20px;font-size:12px}.menu-toggle{display:none;background:none;border:1px solid var(--line);padding:10px;border-radius:4px;color:var(--ink)}.menu-toggle 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var(--line);padding:34px;background:white;border-radius:var(--radius);min-width:0}.form-heading{font-size:16px;font-weight:500;line-height:1.6;margin-bottom:5px}.form-subtitle{font-size:11px;color:var(--muted);margin-bottom:24px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:21px 18px}.field{display:flex;flex-direction:column;gap:8px;min-width:0}.field-wide{grid-column:1/-1}.field label{font-size:12px;font-weight:500;line-height:1.5}.field label .optional{font-size:10px;font-weight:400;color:#838b7e;margin-left:5px}.field input,.field select,.field textarea{border:1px solid #d5d9cd;border-radius:4px;background:#fff;width:100%;min-height:43px;padding:11px 12px;font-size:12px;line-height:1.5;color:var(--ink)}.field input::placeholder,.field textarea::placeholder{color:#9ba291}.field textarea{min-height:110px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:#7e9363;outline:2px solid #e3ebd5;outline-offset:1px}.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='m1 1 5 5 5-5' fill='none' stroke='%2369736a' stroke-width='1.2'/%3E%3C/svg%3E");background-position:right 13px center;background-repeat:no-repeat;padding-right:30px}.field-help{font-size:10px;color:var(--muted);line-height:1.7}.attachment-input{padding:14px!important;background:#f7f8f3!important;border-style:dashed!important}.attachment-input::file-selector-button{font:inherit;border:1px solid var(--line);border-radius:3px;padding:6px 9px;margin-right:10px;background:white;color:var(--ink);cursor:pointer}.privacy-note{font-size:10px;line-height:1.8;color:var(--muted);margin-top:22px}.privacy-note a{text-decoration:underline;text-underline-offset:3px}.form-submit{margin-top:22px;display:flex;align-items:center;justify-content:space-between;gap:15px}.form-submit-note{font-size:10px;line-height:1.7;color:var(--muted);max-width:170px}.form-message{font-size:12px;line-height:1.8;margin-top:18px;padding:14px 17px;border-radius:4px;background:var(--green-light);border:1px solid #cddaba}.form-message:empty{display:none}.form-message[data-state=error]{color:#8d3b2d;background:#fff3ee;border-color:#eacbbb}.honeypot{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}.form-success{padding:25px 0;text-align:center}.success-icon{margin:0 auto 25px;width:64px;height:64px;color:#66844f}.form-success h2{font-family:Georgia,'Times New Roman','Songti SC',serif;font-size:34px;font-weight:400;line-height:1.25}.form-success p{font-size:13px;color:var(--muted);margin-top:17px}.request-reference{background:var(--green-light);border-radius:4px;padding:15px;margin-top:23px;font-size:13px;overflow-wrap:anywhere}.form-success .button{margin-top:25px}.site-nav .mobile-products{display:none}[hidden]{display:none!important}html[lang=zh-CN] .hero h1{font-size:clamp(42px,5.1vw,70px);letter-spacing:-2px;line-height:1.22}html[lang=zh-CN] .hero h1 em{font-style:normal}html[lang=zh-CN] .brand-name{letter-spacing:3px;font-size:15px}html[lang=zh-CN] .nav-link{font-size:12px}html[lang=zh-CN] .section-title,html[lang=zh-CN] .section-head h2,html[lang=zh-CN] .approach h2{letter-spacing:-1px;line-height:1.35}
@media(min-width:1500px){.hero h1{font-size:88px}.hero-grid{gap:90px}.hero{padding-block:78px 80px}}
@media(max-width:1100px){.container{width:calc(100% - 56px)}.site-nav{gap:19px}.hero-grid{gap:40px}.hero h1{font-size:64px}.hero-intro{font-size:14px}.proof-item{padding-inline:21px}.approach-grid{gap:55px}.quote-layout{gap:50px}.page-content{gap:60px}.page-hero-grid{gap:45px}.hero-buttons .button{padding-inline:18px;gap:17px}}
@media(max-width:850px){.site-header{height:82px}.site-nav{gap:15px}.nav-link{font-size:11px}.nav-language{padding-left:14px}.header-quote{display:none}.hero-grid{gap:30px}.hero h1{font-size:52px;letter-spacing:-2.6px}.hero-intro{font-size:13px}.hero-note{font-size:8px}.material-stamp{width:78px;height:78px;right:-9px}.material-stamp b{font-size:25px}.material-stamp span{font-size:6px}.hero-buttons .button{min-height:45px;font-size:11px;padding:12px 13px;gap:12px}.proof-item{padding-inline:16px;gap:12px}.proof-icon{width:24px;height:24px}.proof-title{font-size:12px}.proof-subtitle{font-size:10px}.proof-strip{margin-bottom:67px}.section{padding-bottom:70px}.section-head{gap:25px}.section-head p{max-width:285px;font-size:12px}.section-head h2{font-size:37px}.material-grid{gap:18px}.material-description h3{font-size:16px}.material-description p{font-size:11px}.approach{padding-block:50px;margin-bottom:70px}.approach-grid{gap:35px}.approach h2{font-size:38px}.process-step{padding:25px 18px}.process-step h3{font-size:12px}.process-step p{font-size:11px}.bottom-cta{padding:35px;margin-bottom:60px}.bottom-cta h2{font-size:32px}.page-hero h1{font-size:44px}.page-hero-grid{gap:35px}.page-content{gap:35px;grid-template-columns:1fr .65fr}.side-panel{padding:22px;top:110px}.quote-layout{gap:30px;grid-template-columns:.7fr 1fr}.quote-heading{font-size:43px}.quote-form{padding:26px}.form-grid{gap:17px 14px}.form-submit{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:25px}}
@media(max-width:650px){.container{width:calc(100% - 40px)}.site-header{height:74px}.brand-mark{width:30px;height:33px}.brand-name{font-size:11px}.menu-toggle{display:block}.site-nav{display:none;position:absolute;top:73px;left:0;right:0;background:var(--paper);padding:23px 25px 28px;border-bottom:1px solid var(--line);box-shadow:0 14px 22px #25352e0b;align-items:flex-start;gap:19px}.site-nav.is-open{display:flex;flex-direction:column}.site-nav .nav-link{font-size:15px}.site-nav .mobile-products{display:grid;gap:14px;padding:5px 0 0 14px}.site-nav .mobile-products a{font-size:13px;color:var(--muted)}.site-nav .header-quote{display:inline-flex;margin-top:5px}.nav-language{border:0;padding-left:0;font-size:13px}.hero{padding-block:38px 33px}.hero-grid{grid-template-columns:1fr;gap:35px}.hero-copy{padding:0}.eyebrow{font-size:9px;letter-spacing:1.65px}.hero h1{font-size:clamp(38px,11.8vw,58px);letter-spacing:-2.1px;margin-top:23px;line-height:1.08}.hero-intro{font-size:13px;max-width:360px;margin-top:23px}.hero-buttons{margin-top:25px;gap:10px}.hero-buttons .button{min-height:48px;padding:13px 18px;font-size:12px;gap:20px}.hero-note{font-size:8px;margin-top:22px;letter-spacing:.8px}.hero-image{aspect-ratio:1.12}.material-stamp{width:83px;height:83px;right:11px;top:17px}.material-stamp b{font-size:26px}.material-stamp span{font-size:7px}.image-caption{bottom:15px;left:18px;right:18px;font-size:8px;letter-spacing:1.2px}.proof-strip{grid-template-columns:1fr;margin-bottom:57px}.proof-item,.proof-item:first-child{padding:18px 0}.proof-item+.proof-item{border-left:0;border-top:1px solid var(--line)}.proof-title{font-size:13px}.proof-subtitle{font-size:11px}.proof-icon{width:27px;height:27px}.section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:25px}.section-head h2,.section-title{font-size:36px;letter-spacing:-1.2px}.section-head p{max-width:none;font-size:12px}.material-grid{grid-template-columns:1fr;gap:32px}.material-card img{aspect-ratio:1.3}.material-description{padding-top:17px}.material-description h3{font-size:20px}.material-description p{font-size:12px;min-height:0}.text-link{font-size:11px;margin-top:13px}.section{padding-bottom:58px}.approach{padding-block:40px;margin-bottom:57px}.approach-grid{grid-template-columns:1fr;gap:30px}.approach h2{font-size:38px;max-width:320px}.approach-intro{max-width:none;font-size:12px}.approach-item{padding-block:19px;gap:13px;grid-template-columns:22px 1fr}.approach-item h3{font-size:16px}.process-grid{grid-template-columns:1fr 1fr}.process-step{padding:24px 20px}.process-step:nth-child(3){border-left:0}.process-step:nth-child(n+3){border-top:1px solid var(--line)}.process-step h3{font-size:13px;margin-top:18px}.step-number{font-size:29px}.process-step p{font-size:11px}.bottom-cta{padding:31px 25px;flex-direction:column;align-items:flex-start;gap:24px;margin-bottom:48px}.bottom-cta h2{font-size:33px}.bottom-cta p{font-size:11px;line-height:1.8}.bottom-cta .button{font-size:12px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}.footer-description{font-size:11px}.footer-title{font-size:9px}.footer-links{font-size:11px}.footer-bottom{font-size:9px;flex-direction:column;gap:9px;margin-top:30px}.page-hero{padding-block:35px 40px}.breadcrumbs{margin-bottom:28px;font-size:10px}.page-hero-grid{grid-template-columns:1fr;gap:35px}.page-hero h1,.quote-heading{font-size:44px;letter-spacing:-1.8px}.page-hero p{font-size:13px;margin-top:21px}.page-hero img{aspect-ratio:1.4}.page-content{grid-template-columns:1fr;gap:20px;padding-bottom:55px}.content-section{padding-block:25px}.content-section h2{font-size:27px}.content-section p,.content-section ul{font-size:12px}.side-panel{position:static;padding:26px}.side-panel .button{width:auto}.delivery-stat{margin-top:23px}.delivery-stat strong{font-size:55px}.quote-page{padding-block:36px 55px}.quote-layout{grid-template-columns:1fr;gap:30px}.quote-intro{position:static}.quote-intro p{font-size:13px;margin-top:18px}.quote-intro .intro-rule{margin-top:25px;margin-bottom:21px}.quote-intro ul{font-size:11px}.quote-form{padding:25px 20px}.form-grid{grid-template-columns:1fr;gap:18px}.field-wide{grid-column:auto}.field label{font-size:12px}.field input,.field select,.field textarea{font-size:16px;min-height:46px}.field textarea{min-height:120px}.field-help{font-size:10px}.form-submit{gap:12px}.form-submit .button{width:100%}.form-submit-note{max-width:none}.form-success h2{font-size:30px}html[lang=zh-CN] .hero h1{font-size:clamp(32px,9.9vw,45px);letter-spacing:-1px;line-height:1.24}html[lang=zh-CN] .brand-name{font-size:13px}}
@media(max-width:420px){.hero-buttons .button{font-size:11px;padding-inline:13px;gap:13px}}
@media(max-width:370px){.container{width:calc(100% - 32px)}.hero h1{font-size:clamp(37px,11.8vw,44px)}.hero-buttons .button{padding-inline:14px;gap:12px}.process-step{padding-inline:16px}.quote-form{padding-inline:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* Procurement guides use the existing palette with a wider reading scale. */
.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.guide-card{min-width:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fffdfa}.guide-card-visual{padding:22px 24px 25px;min-height:226px;background:#eceee4;color:var(--green);display:flex;flex-direction:column;align-items:flex-start;justify-content:space-between}.guide-card-visual>span{font-size:10px;letter-spacing:.6px;line-height:1.5}.guide-card-visual svg{width:112px;height:78px;margin:17px 0 13px}.guide-card-visual>p{font-size:13px;line-height:1.6;max-width:250px}.guide-visual-color{background:#f0e8dc;color:#865f47}.guide-visual-cost{background:#e4ebdf;color:#456342}.guide-card-copy{padding:24px}.guide-card-copy :is(h3,h4){font-family:Georgia,'Times New Roman','Songti SC',serif;font-size:24px;line-height:1.3;font-weight:400;letter-spacing:-.6px}.guide-card-copy>p{font-size:13px;line-height:1.8;color:var(--muted);margin-top:12px}.guide-card-copy .text-link{margin-top:22px}.guide-editorial-note{max-width:800px;font-size:12px;color:var(--muted);padding-top:25px}.guide-index-hero{padding-bottom:40px}.guide-index-hero h1{max-width:900px}.guide-index-hero>p{max-width:720px}.guide-hero{padding-top:43px;padding-bottom:45px}.guide-hero-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);gap:64px;align-items:center}.guide-hero h1{font-family:Georgia,'Times New Roman','Songti SC',serif;font-size:clamp(34px,3.4vw,49px);line-height:1.15;font-weight:400;letter-spacing:-1.8px;margin-top:20px}.guide-deck{font-size:14px;line-height:1.85;color:var(--muted);margin-top:24px;max-width:620px}.guide-meta{display:flex;gap:18px;align-items:center;flex-wrap:wrap;font-size:11px;color:var(--muted);margin-top:25px}.draft-label{padding:5px 9px;background:#ecefdf;border:1px solid #d7deca;border-radius:3px;color:#5d7050;font-size:10px}.guide-diagram{margin:0;padding:28px;background:#eeefe5;border:1px solid #d9ded0;border-radius:var(--radius);min-width:0}.diagram-kicker{font-size:10px;font-weight:600;letter-spacing:1.2px;line-height:1.6;color:#57714a;margin-bottom:24px}.guide-diagram figcaption{font-size:10px;line-height:1.8;color:var(--muted);border-top:1px solid #d6ddcb;padding-top:16px;margin-top:24px}.guide-diagram figcaption a{text-decoration:underline}.metric-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.metric-strip>div+div{border-left:1px solid #d5dacd;padding-left:14px}.metric-index{display:block;color:#80946f;font-size:11px;letter-spacing:1px;margin-bottom:13px}.metric-strip strong{display:block;font-size:13px;font-weight:500}.metric-strip p{font-size:10px;color:var(--muted);line-height:1.7;margin-top:7px}.metric-unit{display:block;font-family:Georgia,serif;font-size:19px;line-height:1.4;margin-top:16px}.caliper-chart{margin-top:28px}.caliper-chart>p{font-size:10px;line-height:1.6;margin-bottom:15px;color:var(--muted)}.caliper-chart>div{display:grid;grid-template-columns:1fr auto;gap:8px;margin-top:16px;font-size:11px;line-height:1.5}.caliper-chart b{font-weight:500}.caliper-chart i,.cost-hero-row i{display:block;grid-column:1/-1;height:7px;background:#839674;width:var(--bar);border-radius:2px}.caliper-chart>div:last-child i{background:#556f46}.color-diagram{background:#f0eae0;border-color:#e0d5c6}.color-diagram .diagram-kicker{color:#88684b}.colour-flow{list-style:none;margin:0;padding:0;display:grid;gap:0}.colour-flow li{display:flex;gap:16px;align-items:start;padding-bottom:19px;position:relative;margin:0}.colour-flow li:last-child{padding-bottom:0}.colour-flow li:not(:last-child):before{content:'';height:calc(100% - 27px);width:1px;background:#d4c4b3;position:absolute;top:30px;left:13px}.colour-flow li>span{width:27px;height:27px;flex-shrink:0;border:1px solid #bdab93;border-radius:50%;display:grid;place-items:center;font-size:10px;color:#84603f}.colour-flow strong{display:block;font-size:13px;line-height:1.6;font-weight:500}.colour-flow p{font-size:11px;color:#7c756a;margin-top:3px;line-height:1.7}.color-diagram figcaption{border-color:#ddcfc0}.cost-hero-row{display:grid;grid-template-columns:1fr auto;gap:12px;margin-bottom:23px;align-items:center}.cost-hero-row>span{font-size:12px;line-height:1.5}.cost-hero-row strong{font-family:Georgia,serif;font-size:25px;font-weight:400;line-height:1.2}.cost-hero-row small{font-family:Arial,sans-serif;font-size:9px;font-weight:400;color:var(--muted)}.cost-hero-row:nth-of-type(2) i{background:#b18460}.cost-equation{display:grid;grid-template-columns:1fr auto;gap:10px;margin-top:25px;padding-top:18px;border-top:1px solid #d6ddcb;font-size:11px;line-height:1.6}.cost-equation b{font-weight:500}.guide-reading{display:grid;grid-template-columns:minmax(0,830px) minmax(0,250px);gap:75px;align-items:start;margin-bottom:70px}.guide-body{min-width:0;font-size:15px;line-height:1.95;overflow-wrap:break-word}.guide-body>p{margin-top:21px;line-height:1.95;color:#4f5f52}.guide-body strong{font-weight:600;color:#2c4433}.guide-body h2{font-family:Georgia,'Times New Roman','Songti SC',serif;font-weight:400;font-size:29px;line-height:1.4;letter-spacing:-.6px;margin:48px 0 18px;padding-top:24px;border-top:1px solid var(--line);scroll-margin-top:120px}.guide-body h3{font-size:19px;line-height:1.5;margin:28px 0 12px}.guide-body>ul{margin:20px 0}.guide-answer{padding:25px 28px;background:#e9efe1;border-left:3px solid #688154;border-radius:0 4px 4px 0;margin-bottom:30px}.guide-answer>p:nth-child(2){font-size:17px;line-height:1.85;margin-top:12px;color:#345038}.guide-answer .guide-scope{font-size:11px;line-height:1.9;margin-top:16px;color:#64755f}.guide-scope strong{font-size:10px;margin-right:7px;font-weight:600}.source-ref{font-size:10px;line-height:0;white-space:nowrap;margin-left:3px;color:#647d50}.guide-body a:not(.button):not(.text-link){text-decoration:underline;text-underline-offset:3px}.guide-table{overflow-x:auto;margin:24px 0 27px;border:1px solid #d7ddd0;border-radius:4px;background:#fffdfa;max-width:100%}.guide-table table{border-collapse:collapse;width:100%;min-width:600px;font-size:12px;line-height:1.8;text-align:left}.guide-table th,.guide-table td{padding:14px 17px;vertical-align:top;border-bottom:1px solid #e2e5dc}.guide-table thead th{background:#e8eee1;color:#3e5738;font-weight:600;font-size:11px}.guide-table tbody th{font-weight:500;color:#3a4e3e;min-width:140px}.guide-table tbody td{color:#5c675b}.guide-table tr:last-child>th,.guide-table tr:last-child>td{border-bottom:0}.guide-body blockquote{padding:22px 26px;margin:26px 0;border-left:2px solid #abbd97;background:#eeefe6;font-size:14px;color:#52634b}.guide-body blockquote p{line-height:1.9}.guide-toc{position:sticky;top:128px;border-left:1px solid var(--line);padding-left:25px;font-size:11px;line-height:1.8;min-width:0}.guide-toc nav>p{font-weight:600;font-size:11px;letter-spacing:.7px;margin-bottom:18px}.guide-toc ol{padding:0;list-style:none;display:grid;gap:14px}.guide-toc li{margin:0;line-height:1.8;color:#67725f}.guide-toc a:hover{color:var(--green);text-decoration:underline;text-underline-offset:3px}.guide-toc-note{padding-top:22px;margin-top:24px;border-top:1px solid var(--line);color:#819078;font-size:10px;line-height:1.9}.guide-brief{margin-top:45px;padding:29px;background:#eeefe5;border:1px solid #d9dfd0;border-radius:var(--radius)}.guide-brief h2{margin:13px 0 16px;border:0;padding:0;font-size:27px;line-height:1.4}.guide-brief>p:not(.eyebrow){font-size:13px;color:var(--muted);line-height:1.85}.guide-brief details{margin-top:21px;border-block:1px solid #d8dfcf;padding:13px 0;font-size:12px}.guide-brief summary{cursor:pointer;font-weight:500;line-height:1.7}.guide-brief pre{white-space:pre-wrap;overflow-wrap:anywhere;font:12px/1.9 Arial,'PingFang SC',sans-serif;padding:15px 0;margin:0;color:#67715d}.guide-brief .button{margin-top:22px;font-size:12px}.guide-next-links{display:flex;gap:26px;flex-wrap:wrap;margin-top:8px}.guide-sources{margin-top:42px}.guide-sources h2{font-size:25px}.guide-sources>p{font-size:11px;line-height:1.8;color:var(--muted);margin-bottom:20px}.guide-sources ol{padding:0;list-style:none;display:grid;gap:16px}.guide-sources li{display:flex;gap:14px;font-size:11px;line-height:1.9;margin:0;overflow-wrap:anywhere;color:#72806b;scroll-margin-top:120px}.source-number{flex-shrink:0;width:24px;height:24px;border:1px solid #ccd5c4;border-radius:50%;display:grid;place-content:center;font-size:10px;color:#587047}.source-back{display:inline-block;margin-left:10px}.guide-related>.eyebrow{margin-bottom:25px}.guide-grid-related{grid-template-columns:repeat(2,minmax(0,1fr));max-width:830px}.guide-grid-related .guide-card-visual{min-height:185px}.cost-demo{margin-top:42px;border:1px solid #cfdbc5;background:#f0f4e9;border-radius:var(--radius);padding:29px}.cost-demo h2{margin-top:13px;padding-top:0;border:0;font-size:27px}.cost-demo>p{font-size:13px;line-height:1.9;color:#66765c}.cost-controls{margin-top:23px;display:grid;grid-template-columns:1fr;gap:18px}.cost-controls label{display:block;font-size:12px;font-weight:600;margin-bottom:8px}.cost-controls input{width:100%;max-width:240px;border:1px solid #acbea0;border-radius:4px;background:#fff;padding:11px 12px;font-size:18px;color:var(--green)}.cost-controls input[aria-invalid=true]{border-color:#ae5c43}.cost-controls p{font-size:10px;color:#728366;margin-top:8px;line-height:1.7}.cost-controls .cost-input-error{color:#9b4d36}.cost-input-error:empty{display:none}.cost-presets{display:flex;flex-wrap:wrap;gap:9px}.cost-presets button{padding:7px 12px;background:transparent;border:1px solid #b6c7a7;border-radius:4px;font-size:11px;color:#4a663e}.cost-presets button:hover{background:#e2ebd6}.cost-demo .cost-assumptions{font-size:11px;margin-top:21px;padding-top:16px;border-top:1px solid #d5dfcb}.cost-demo .guide-table{margin-bottom:20px}.cost-demo .guide-table table{min-width:500px}.cost-demo .cost-result{color:#3c5c30;font-size:15px;font-weight:500;padding:16px 18px;background:#e0ebd4;border-radius:4px;margin-top:18px}.cost-demo .cost-model-note{font-size:10px;color:#748767;margin-top:14px;line-height:1.9}html[lang=zh-CN] .guide-hero h1{line-height:1.4;letter-spacing:-.8px;font-size:clamp(31px,3.1vw,42px)}html[lang=zh-CN] .guide-card-copy :is(h3,h4){line-height:1.5;font-size:22px;letter-spacing:-.3px}html[lang=zh-CN] .guide-body h2{line-height:1.5;letter-spacing:-.4px}
@media(max-width:1100px){.guide-hero-grid{gap:35px}.guide-reading{gap:40px;grid-template-columns:minmax(0,1fr) 210px}.guide-diagram{padding:23px}.metric-strip{gap:10px}.metric-strip>div+div{padding-left:10px}.metric-strip strong{font-size:12px}.guide-card-copy{padding:21px}.guide-card-copy :is(h3,h4){font-size:23px}}
@media(max-width:850px){.guide-hero-grid{grid-template-columns:1fr;gap:30px}.guide-hero h1{font-size:43px;max-width:740px}.guide-diagram{max-width:600px;padding:27px;width:100%}.guide-reading{grid-template-columns:1fr;gap:25px}.guide-toc{grid-row:1;position:static;border:1px solid var(--line);padding:20px;border-radius:4px}.guide-toc ol{grid-template-columns:1fr 1fr;gap:9px 24px;font-size:11px}.guide-toc-note{display:none}.guide-toc nav>p{margin-bottom:12px}.guide-grid{gap:16px}.guide-card-copy :is(h3,h4){font-size:21px}.guide-card-visual{padding:20px;min-height:220px}.guide-card-visual>p{font-size:12px}.guide-card-copy{padding:20px}.guide-card-copy>p{font-size:12px}.guide-hero .breadcrumbs{flex-wrap:wrap}}
@media(max-width:650px){.guide-grid,.guide-grid-related{grid-template-columns:1fr;gap:23px}.guide-card-visual{min-height:195px;padding:21px 23px}.guide-card-visual svg{margin:12px 0}.guide-card-visual>p{max-width:none;font-size:13px}.guide-card-copy{padding:22px 23px}.guide-card-copy :is(h3,h4){font-size:25px}.guide-card-copy>p{font-size:13px}.guide-section .section-head h2{font-size:34px}.guide-hero{padding-top:29px;padding-bottom:28px}.guide-hero h1{font-size:36px;line-height:1.22;letter-spacing:-1.2px}.guide-deck{font-size:13px;margin-top:18px}.guide-meta{font-size:10px;gap:12px;margin-top:18px}.guide-diagram{padding:23px}.guide-reading{margin-bottom:45px;gap:25px}.guide-toc{padding:16px 18px}.guide-toc ol{font-size:10px;gap:9px 17px}.guide-body{font-size:14px;line-height:1.95}.guide-body>p{margin-top:20px}.guide-body h2{font-size:25px;margin-top:35px;padding-top:22px}.guide-answer{padding:20px}.guide-answer>p:nth-child(2){font-size:15px}.guide-table table{font-size:11px;min-width:550px}.guide-table th,.guide-table td{padding:12px 14px}.guide-body blockquote{margin-inline:0;padding:19px;font-size:13px}.guide-brief,.cost-demo{padding:22px 19px}.guide-brief h2,.cost-demo h2{font-size:24px}.guide-brief .button{font-size:11px;padding-inline:14px;gap:12px}.guide-next-links{gap:20px}.cost-demo .guide-table table{min-width:450px}.cost-demo .cost-result{font-size:13px;padding:14px}.guide-sources li{font-size:10px;gap:10px}.guide-sources h2{font-size:23px}.guide-index-hero h1{font-size:38px}.guide-index-hero>p{font-size:13px}.metric-strip strong{font-size:12px}.metric-unit{font-size:18px}.guide-editorial-note{font-size:11px}html[lang=zh-CN] .guide-hero h1{font-size:30px;line-height:1.45;letter-spacing:-.5px}html[lang=zh-CN] .guide-card-copy :is(h3,h4){font-size:22px}}
@media print{.site-header,.preview-bar,.site-footer,.guide-toc,.guide-related,.cost-controls,.guide-next-links,.guide-brief .button{display:none!important}.container{width:100%}.guide-hero-grid,.guide-reading{display:block}.guide-diagram{max-width:600px;margin-top:25px}.guide-table{overflow:visible}.guide-table table{min-width:0}.guide-body{font-size:11pt}.guide-hero{padding:0 0 20px}.guide-body h2{break-after:avoid}.guide-table tr{break-inside:avoid}}

.guide-title-detail{display:block;font-size:.88em;line-height:1.5;margin-top:8px}.metric-strip>div:last-child .metric-unit{font-size:15px}

.guide-table-hint{display:none}@media(max-width:650px){.guide-body>.guide-table-hint,.cost-demo>.guide-table-hint{display:block;font-size:10px;line-height:1.7;color:var(--muted);margin:20px 0 -14px}}

/* Expanded guide directory: one topic group at a time. */
.guide-grid-two{grid-template-columns:repeat(2,minmax(0,1fr))}.guide-index-jumps{display:flex;gap:10px;flex-wrap:wrap;margin-top:27px}.guide-index-jumps a{display:inline-flex;gap:18px;align-items:center;padding:10px 15px;border:1px solid #cbd6c1;border-radius:4px;font-size:12px;color:var(--green);line-height:1.5}.guide-index-jumps a:hover{background:var(--green-light)}.guide-group{scroll-margin-top:125px;padding-bottom:60px}.guide-group-heading{display:flex;gap:20px;align-items:baseline;border-top:1px solid var(--line);padding-top:25px;margin-bottom:27px}.guide-group-heading>span{font-family:Georgia,serif;font-size:25px;color:#8b9e79}.guide-group-heading :is(h2,h3){font-family:Georgia,'Songti SC',serif;font-size:31px;font-weight:400;line-height:1.4;letter-spacing:-.7px}.guide-group-heading p{font-size:12px;color:var(--muted);margin-top:9px;line-height:1.8}.guide-index-note{padding:0 0 55px}.guide-visual-quotes,.guide-visual-printing{background:#e5ede0;color:#4c6943}.guide-visual-dimensions{background:#f0eadd;color:#876448}.guide-visual-artwork{background:#e9eae2;color:#586658}.guide-visual-samples{background:#eee6dc;color:#896c51}.diagram-comparison{width:100%;border-collapse:collapse;text-align:left;font-size:12px;line-height:1.7}.diagram-comparison th,.diagram-comparison td{padding:15px 7px;border-bottom:1px solid #d5decd;vertical-align:top;font-weight:400}.diagram-comparison thead th{font-size:10px;color:#6c7c63;font-weight:500;padding-top:0}.diagram-comparison td{font-variant-numeric:tabular-nums}.diagram-comparison tbody th{color:#47633c;font-weight:500}.diagram-comparison tr:last-child th,.diagram-comparison tr:last-child td{border-bottom:0}
@media(max-width:650px){.guide-grid-two{grid-template-columns:1fr}.guide-index-jumps{gap:8px;margin-top:23px}.guide-index-jumps a{font-size:11px;padding:9px 12px;gap:12px}.guide-group{padding-bottom:43px}.guide-group-heading{gap:15px;padding-top:22px;margin-bottom:23px}.guide-group-heading :is(h2,h3){font-size:27px}.guide-group-heading p{font-size:11px}.guide-group-heading>span{font-size:23px}.diagram-comparison{font-size:11px}.diagram-comparison th,.diagram-comparison td{padding:13px 6px}.diagram-comparison thead th{font-size:9px}}

.guide-family{scroll-margin-top:125px}.guide-family-heading{padding:30px 0 22px;border-top:1px solid #cad4bf}.guide-family-heading h2{font-family:Georgia,'Songti SC',serif;font-size:39px;font-weight:400;line-height:1.35;letter-spacing:-1px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}.guide-family-heading h2 span{font-family:Arial,'PingFang SC',sans-serif;font-size:11px;letter-spacing:0;border:1px solid #ccd9bf;border-radius:4px;padding:6px 10px;color:#667d54}.guide-family-heading p{font-size:13px;line-height:1.85;color:var(--muted);max-width:850px;margin-top:14px}.guide-family .guide-group-heading{border-top:0;padding-top:12px;margin-bottom:23px}.guide-family .guide-group-heading :is(h2,h3){font-size:24px;letter-spacing:-.4px}.guide-family .guide-group{padding-bottom:50px}.guide-visual-plasticMaterial,.guide-visual-plasticThickness,.guide-visual-plasticSeal{background:#e6ede7;color:#476957}.guide-visual-nonwovenMaterial,.guide-visual-nonwovenGsm,.guide-visual-nonwovenJoin{background:#efe7dc;color:#876e4f}
@media(max-width:650px){.guide-family-heading{padding-top:24px}.guide-family-heading h2{font-size:31px;gap:14px}.guide-family-heading h2 span{font-size:10px}.guide-family-heading p{font-size:12px}.guide-family .guide-group-heading :is(h2,h3){font-size:23px}.guide-family .guide-group{padding-bottom:38px}}

/* A single paper-bag guide uses the existing card design at reading width. */
.guide-grid-one{grid-template-columns:minmax(0,1fr)}.guide-grid-one .guide-card{display:grid;grid-template-columns:minmax(0,.72fr) minmax(0,1fr)}.guide-title-link{display:inline;line-height:inherit}.guide-title-link .arrow{font-family:Arial,sans-serif;font-size:.75em;white-space:nowrap;margin-left:.3em}.guide-title-link:hover{text-decoration:underline;text-underline-offset:5px}.guide-visual-paperbag{background:#ece4d6;color:#866844}
@media(max-width:650px){.guide-grid-one .guide-card{display:block}.guide-title-link{overflow-wrap:anywhere}}