@charset "UTF-8";
.article-meta{display:flex;justify-content:space-between;align-items:center;gap:12px}.article-meta time{font-size:12px;color:var(--muted)}.list-pagination{display:flex;justify-content:center;align-items:center;gap:22px;margin-top:42px}.list-pagination>div{display:flex;gap:8px}.list-pagination a,.list-pagination>span{display:flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;padding:8px 14px;font-size:14px;border:1px solid var(--line);border-radius:7px}.list-pagination [aria-current="page"]{background:var(--ink);border-color:var(--ink);color:white}.list-pagination [aria-disabled]{color:var(--muted);background:var(--soft)}.recent-articles{margin-bottom:32px;padding-bottom:22px;border-bottom:1px solid var(--line)}.recent-articles h2{font-size:23px;margin:0 0 12px}.recent-articles>a{display:block;padding:14px 0;border-bottom:1px solid var(--line)}.recent-articles>a:last-child{border-bottom:0}.recent-articles time{font-size:12px;color:var(--muted)}.recent-articles h3{font-size:15px;line-height:1.8;margin:5px 0 0;font-weight:500}.prose .article-pagination>a,.pagination-boundary{padding:20px;border:1px solid var(--line);border-radius:10px;display:flex;flex-direction:column;gap:10px;text-decoration:none}.article-pagination span{font-size:12px;color:var(--muted)}.article-pagination strong{font-size:16px;line-height:1.8;font-weight:500;color:var(--ink)}.article-pagination>a:hover{background:var(--soft);border-color:var(--orange)}.pagination-boundary{background:var(--soft)}.pagination-boundary strong{color:var(--muted)}.back-journal{margin-top:20px;font-size:14px}.reading-aside:has(.recent-articles){position:static}
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:root{--orange:#e9632d;--orange-dark:#b8461a;--ink:#222725;--muted:#6e736f;--line:#e2e5e0;--soft:#f6f7f4;--green:#326b56;--radius:14px;--container:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;color:var(--ink);background:#fff;font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.45}h1,h2{letter-spacing:-.045em}h3{font-size:19px;letter-spacing:-.025em}p{margin-bottom:18px}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button,a,summary,input{touch-action:manipulation}:focus-visible{outline:3px solid var(--orange);outline-offset:5px}button{color:inherit}a:hover{color:var(--orange-dark)}[hidden]{display:none!important}.container{width:min(var(--container),calc(100% - 80px));margin:auto}.section{padding:92px 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16px}.hero-copy>p:not(.eyebrow){font-size:15px;color:var(--muted);line-height:2}.hero-actions{display:flex;gap:14px;margin-top:28px}.hero-actions .button{min-width:148px}.hero-foot{display:flex;gap:22px;margin-top:41px;font-size:12px;color:#767d75}.hero-foot span+span{border-left:1px solid #d9dfd5;padding-left:22px}.hero-board{background:white;border:1px solid #e2e6df;border-radius:20px;padding:28px;box-shadow:0 22px 55px #34422c08;animation:enter .7s .12s both}.board-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.board-heading .eyebrow{font-size:10px;display:block;margin-bottom:5px}.board-heading h2{font-size:22px;margin:0}.board-badge{border:1px solid var(--line);border-radius:5px;padding:1px 9px;font-size:12px;color:var(--muted)}.mini-price{border:1px solid var(--line);border-radius:12px;padding:28px}.mini-title{display:flex;align-items:center;gap:10px;margin-bottom:20px}.mini-title h3{margin:0;font-size:18px}.mini-title>span:last-child{margin-left:auto;font-size:12px;color:var(--muted)}.type-icon{height:29px;width:29px;background:#f1f2ed;border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:19px}.newEnergy .type-icon{color:var(--green);background:#e7efe8}.mini-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.mini-grid>div+div{padding-left:20px;border-left:1px solid var(--line)}.mini-grid .muted{font-size:13px}.mini-grid p{margin:7px 0 0;white-space:nowrap;display:flex;align-items:baseline;gap:5px}.price-number{font-family:Arial,sans-serif;font-size:48px;line-height:1.15;font-weight:600;letter-spacing:-.055em;font-variant-numeric:tabular-nums}.unit{font-size:13px;font-weight:400;letter-spacing:0}.hero-board .mini-price{border:0;border-radius:10px;padding:20px;background:#f7f7f4}.hero-board .newEnergy{margin-top:14px;background:#f1f6f0}.hero-board .mini-title{margin-bottom:17px}.hero-board .mini-title h3{font-size:15px}.hero-board .mini-grid{gap:12px}.hero-board .mini-grid>div+div{padding-left:14px}.hero-board .price-number{font-size:39px}.hero-board .unit{font-size:11px}.hero-board .newEnergy .price-number{color:var(--green)}.board-bottom{display:flex;gap:10px;align-items:flex-start;margin-top:20px;color:var(--muted)}.board-bottom p{font-size:12px;line-height:1.8;margin:0}.hero-baseline{padding:19px 0;border-top:1px solid #dfe4da;display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}.under-note{display:flex;justify-content:space-between;gap:25px;color:var(--muted);font-size:13px;margin-top:20px}.under-note p{margin:0}.tabs{display:flex;gap:6px;padding:5px;background:#e9ece5;width:max-content;max-width:100%;border-radius:9px;margin-bottom:30px}.tabs button{border:0;background:transparent;padding:10px 30px;font-size:14px;border-radius:6px;color:var(--muted)}.tabs button.active{background:var(--ink);color:#fff}.price-card{border:1px solid 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@media(min-width:1450px){.header-inner{padding:0 45px}.desktop-nav{gap:25px}.hero-grid{padding-top:85px;padding-bottom:70px}}
@media(max-width:1360px){.header-inner{gap:20px;padding:0 24px}.desktop-nav{gap:15px}.header-call>a:first-child{display:none}.hero-grid{gap:40px}.hero-board{padding:23px}.mini-grid{gap:13px}.mini-grid>div+div{padding-left:13px}.price-number{font-size:43px}}
@media(max-width:1200px){.desktop-nav{display:none}.header-inner{min-height:80px}.header-call{margin-left:auto}.menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:6px;width:44px;height:44px;border:1px solid var(--line);background:transparent;border-radius:6px;padding:12px}.menu-toggle span{display:block;height:1px;background:var(--ink);width:18px}.mobile-menu:not([hidden]){display:grid;grid-template-columns:repeat(3,1fr);padding:15px 30px 25px;gap:5px 20px;background:#fff;border-top:1px solid var(--line)}.mobile-menu a{font-size:14px;padding:9px}.hero-grid{gap:32px}.hero-copy h2{font-size:18px}.hero-board .price-number{font-size:34px}.hero-board .mini-price{padding:17px}.hero-board .mini-title>span:last-child{font-size:10px}.hero-foot{gap:14px}.hero-foot span+span{padding-left:14px}.calculator{gap:40px}.result-price{font-size:55px}.section-heading h2{font-size:29px}.section-heading>p{max-width:240px}.risk-grid{gap:50px}.footer-main{gap:25px}.footer-main .footer-phone{font-size:19px!important}}
@media(max-width:900px){.container{width:calc(100% - 48px)}.section{padding:65px 0}.hero-grid{grid-template-columns:1fr;gap:35px;padding-top:48px;padding-bottom:38px}.hero h1{font-size:60px}.hero h1 br{display:none}.hero-copy h2{font-size:22px}.hero-copy>p:not(.eyebrow){font-size:16px}.hero-foot{margin-top:27px}.hero-board{padding:26px}.hero-board .mini-grid .price-number{font-size:48px}.hero-board .mini-price{padding:22px}.hero-board .mini-title>span:last-child{font-size:12px}.hero-baseline{font-size:11px}.two{gap:18px}.mini-price{padding:20px}.mini-grid p{flex-wrap:wrap;gap:2px}.mini-grid .price-number{font-size:36px}.mini-title>span:last-child{display:none}.hero-board .mini-title>span:last-child{display:block}.price-card{padding:22px}.big-price .price-number{font-size:50px}.price-card .button{padding:9px 14px;font-size:13px}.price-card h3{font-size:25px}.three{gap:17px}.section-heading{align-items:flex-start;flex-direction:column;gap:12px}.section-heading>p{max-width:none}.four{grid-template-columns:repeat(2,1fr);gap:28px}.calc-controls h2{font-size:33px}.calc-result{padding:28px}.result-price{font-size:48px}.calculator{gap:30px}.split-answer{gap:30px}.split-answer h2{font-size:28px}.risk-grid{gap:35px}.dark h2{font-size:31px}.article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.cta{gap:25px}.cta h2{font-size:29px}.cta-phone{font-size:27px}.footer-main{grid-template-columns:1.3fr 1fr 1fr}.footer-main>div:last-child{grid-column:1/-1;border-top:1px solid var(--line);padding-top:22px}.footer-bottom{font-size:11px;flex-direction:column;gap:10px;margin-top:20px}.reading-layout{grid-template-columns:minmax(0,1fr) 230px;gap:35px}.page-intro h1{font-size:35px}.reading-aside{padding:20px}}
@media(max-width:600px){html{scroll-padding-top:90px}.container{width:calc(100% - 36px)}.section{padding:52px 0}.header-inner,.header.scrolled .header-inner{min-height:72px;padding:0 18px;gap:12px}.brand-mark{width:36px;height:38px;font-size:13px;border-radius:9px}.brand{gap:9px}.brand strong{font-size:21px}.brand small{font-size:9px}.header-call{display:none}.menu-toggle{margin-left:auto}.mobile-menu:not([hidden]){grid-template-columns:repeat(2,1fr);padding:15px 18px;max-height:calc(100dvh - 140px);overflow:auto}.hero-grid{padding-top:35px;gap:29px}.hero-copy .eyebrow{font-size:10px;letter-spacing:.07em}.hero h1{font-size:43px;margin:20px 0;letter-spacing:-.055em}.hero h1 br{display:block}.hero-copy h2{font-size:18px;max-width:300px;line-height:1.7;margin:18px 0 13px}.hero-copy>p:not(.eyebrow){font-size:14px;line-height:1.95}.hero-copy>p br{display:none}.hero-actions{gap:12px;margin-top:24px}.hero-actions .button{min-width:0;flex:1;padding:10px 17px;gap:20px}.hero-foot{font-size:10px;gap:13px;justify-content:space-between}.hero-foot span+span{padding-left:13px}.hero-board{padding:18px;border-radius:13px}.board-heading{margin-bottom:18px}.board-heading h2{font-size:19px}.hero-board .mini-price{padding:17px 13px}.hero-board .mini-title{gap:8px;margin-bottom:14px}.hero-board .mini-title h3{font-size:14px}.hero-board .mini-title>span:last-child{font-size:10px}.hero-board .mini-grid{gap:10px}.hero-board .mini-grid>div+div{padding-left:10px}.hero-board .mini-grid p{gap:3px;flex-wrap:wrap}.hero-board .mini-grid .price-number{font-size:36px}.hero-board .unit{font-size:10px}.hero-board .mini-grid .muted{font-size:11px}.board-bottom p{font-size:11px}.hero-baseline{flex-direction:column;gap:6px;padding:15px 0}.section-heading{margin-bottom:27px}.section-heading h2{font-size:26px;line-height:1.5}.section-heading>p{font-size:13px}.eyebrow{font-size:10px;letter-spacing:.12em;margin-bottom:12px}.two,.three,.four{grid-template-columns:minmax(0,1fr);gap:18px}.mini-price{padding:23px 20px}.mini-title>span:last-child{display:block;font-size:10px}.mini-title h3{font-size:16px}.mini-grid .price-number{font-size:38px}.unit{font-size:11px}.mini-grid{gap:15px}.mini-grid>div+div{padding-left:15px}.mini-grid p{flex-wrap:wrap;gap:5px}.under-note{flex-direction:column;gap:7px;font-size:12px}.tabs{margin-bottom:23px;width:100%}.tabs button{flex:1;padding:10px 18px}.price-card{padding:28px}.price-card h3{font-size:29px}.card-top{margin-bottom:16px}.big-price .price-number{font-size:48px}.price-card .button{font-size:14px;min-height:46px}.timeline-block{margin-top:35px;padding-top:28px;grid-template-columns:1fr;gap:23px}.timeline-block h3{font-size:22px}.timeline{padding:0 8px}.year-result{display:grid;grid-template-columns:1fr 1fr;padding:18px;gap:10px;font-size:12px}.year-result>span{grid-column:1/-1}.year-result a{grid-column:1/-1}.year-result strong{font-size:13px}.comparison-wrap{border-radius:8px}th,td{padding:17px 10px;font-size:12px;overflow-wrap:anywhere}thead th{font-size:14px}thead span{font-size:8px}tbody tr:nth-child(-n+3) td{font-size:18px}td a{font-size:12px}table th:first-child{width:22%}.note{font-size:12px}.calculator{grid-template-columns:1fr;gap:30px}.calc-controls h2{font-size:32px}.calc-controls h2 br{display:none}.calc-controls fieldset{margin-top:23px}.calc-result{padding:28px}.result-price{font-size:52px}.split-answer{grid-template-columns:1fr;gap:6px}.split-answer h2{font-size:27px}.split-answer p{font-size:14px}.steps{grid-template-columns:1fr 1fr;gap:22px}.steps article{padding:0}.step-num{font-size:36px;padding-bottom:17px;margin-bottom:17px}.steps h3{font-size:17px;margin-bottom:10px}.steps p{font-size:13px}.steps a{font-size:12px}.inline-banner{flex-direction:column;gap:8px;font-size:13px}.factor-list>div{grid-template-columns:25px 1fr;gap:7px 14px;padding:20px 0}.factor-list h3{font-size:17px}.factor-list p{grid-column:2;font-size:13px}.demand-box{flex-direction:column;align-items:flex-start;gap:20px}.benefits{grid-template-columns:1fr 1fr;gap:28px 20px}.benefits article h3{font-size:17px}.benefits article p{font-size:13px}.benefit-icon{margin-bottom:17px}.risk-grid{grid-template-columns:1fr;gap:30px}.dark h2{font-size:32px;margin-bottom:20px}.risk-grid .button{margin-top:0}.risk-grid>div+div>p{font-size:14px}.source-link{font-size:11px}.article-grid{grid-template-columns:1fr}.article-art{height:145px}.article-body{padding:22px}.article-body h3{font-size:19px}.article-body p{font-size:14px}.faq-list summary{gap:15px;padding:20px 0}.faq-list h3{font-size:15px}.faq-index{width:18px;flex-shrink:0}.faq-answer>div{padding:0 18px 20px 33px}.faq-answer p{font-size:13px}.cta{flex-direction:column;align-items:flex-start;gap:26px}.cta h2{font-size:29px}.cta p:not(.eyebrow){font-size:14px}.cta p br{display:none}.cta-right{align-items:flex-start;width:100%;gap:16px}.cta-phone{font-size:33px}.cta-right .button{width:100%}footer{padding-top:40px;padding-bottom:80px}.footer-main{grid-template-columns:1fr 1fr;gap:28px}.footer-main>div:first-child{grid-column:1/-1}.footer-main>div:first-child p{font-size:12px}.footer-main h3{margin-bottom:15px}.footer-bottom{margin-top:20px;gap:10px;font-size:10px}.mobile-call{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:40;background:rgba(255,255,255,.98);border-top:1px solid var(--line);padding:10px 18px calc(10px + env(safe-area-inset-bottom));align-items:center;justify-content:space-between;gap:15px;box-shadow:0 -5px 20px #23332205}.mobile-call strong{font-size:15px;display:block;line-height:1.5}.mobile-call small{font-size:10px;color:var(--muted);display:block}.mobile-call .button{min-height:43px;font-size:14px;min-width:144px;padding:8px 18px;gap:20px}.back-top{bottom:90px;right:16px;width:37px;height:37px}.page-intro{padding:22px 0 38px}.breadcrumbs{font-size:11px;margin-bottom:30px;gap:9px}.page-intro h1{font-size:31px}.page-intro>div>p:last-child{font-size:14px}.reading-layout{grid-template-columns:1fr;gap:30px}.reading-aside{position:static}.prose-section h2{font-size:23px}.prose-section p{font-size:15px}.prose-section{margin-bottom:32px}.prose table td,.prose table th{font-size:13px;padding:15px 8px}.article-pagination{grid-template-columns:1fr;gap:20px}.duration-card{padding:28px}.duration-card h2 .price-number{font-size:48px}.article-links{gap:16px;font-size:13px}}
@media(max-width:350px){.container{width:calc(100% - 28px)}.header-inner{padding:0 14px}.hero h1{font-size:40px}.hero-board{padding:14px}.hero-board .mini-grid .price-number{font-size:34px}.hero-board .mini-title>span:last-child{display:none}.mini-price{padding:20px 16px}.mini-grid .price-number{font-size:36px}.mini-grid{gap:9px}.mini-grid>div+div{padding-left:9px}.hero-foot{font-size:9px;gap:8px}.hero-foot span+span{padding-left:8px}.calc-result{padding:24px}.result-price{font-size:46px}.mobile-call{padding-left:14px;padding-right:14px}.mobile-call .button{min-width:136px}.section-heading h2{font-size:24px}}
@media(max-width:600px){.hero-grid{padding-top:23px;gap:22px}.hero h1{font-size:34px;margin:13px 0;line-height:1.25}.hero h1 br{display:none}.hero-copy .eyebrow{margin-bottom:10px}.hero-copy h2{font-size:16px;max-width:none;margin:13px 0 10px}.hero-copy>p:not(.eyebrow){font-size:13px;line-height:1.8;margin-bottom:12px}.hero-actions{margin-top:15px}.hero-foot{display:none}.hero-board .mini-price{padding-top:12px;padding-bottom:12px}.hero-board .mini-title{margin-bottom:9px}.hero-board .mini-grid p{margin-top:3px}.hero-board .newEnergy{margin-top:10px}.board-bottom{margin-top:12px}.board-heading{margin-bottom:14px}.hero-board .mini-grid .price-number{font-size:36px}}
@media(max-width:350px){.hero h1{font-size:30px}.hero-copy h2{font-size:15px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.reveal-pending{opacity:1;transform:none}}

/* Supplied brand logo, in the site orange palette. */
.brand-logo{display:block;width:100px;height:auto;object-fit:contain;transition:width .25s}.header.scrolled .brand-logo{width:84px}footer .brand-logo{width:148px}@media(max-width:1200px){.header .brand-logo{width:84px}}@media(max-width:600px){.header .brand-logo,.header.scrolled .brand-logo{width:76px}footer .brand-logo{width:130px}}
.brand-logo{mix-blend-mode:multiply}

@media(max-width:600px){.mobile-call{gap:12px}.mobile-call .mobile-phone{flex-direction:column;gap:2px;min-height:58px;min-width:0;padding:7px 16px;flex:1;max-width:280px}.mobile-phone .mobile-phone-label{font-size:12px;line-height:1.3;font-weight:500}.mobile-call .mobile-phone-number{font-family:Arial,sans-serif;font-size:clamp(21px,6vw,26px);line-height:1.3;font-weight:800;white-space:nowrap;letter-spacing:0}.mobile-call>div{flex-shrink:0}footer{padding-bottom:100px}.back-top{bottom:100px}}
/* Match the header to the same content grid as the main sections and footer. */
.header-inner{width:min(var(--container),calc(100% - 80px));max-width:var(--container);padding-inline:0}
@media(max-width:900px){.header-inner{width:calc(100% - 48px)}}
@media(max-width:600px){.header-inner,.header.scrolled .header-inner{width:calc(100% - 36px);padding-inline:0}}
@media(max-width:350px){.header-inner,.header.scrolled .header-inner{width:calc(100% - 28px)}}