/* Brest China project centre, 2026-09-05. Components use px to coexist with legacy rem pages. */
:root{--rv-ink:#14263e;--rv-muted:#596776;--rv-orange:#d95709;--rv-line:#dfe5e8;--rv-navy:#12283f;--rv-paper:#f5f6f5}
.rv-site{margin:0;background:#fff;color:var(--rv-ink);font:16px/1.85 "Microsoft YaHei","PingFang SC",Arial,sans-serif;overflow-x:visible}
.rv-site *,.rv-header *,.rv-footer *{box-sizing:border-box}
.rv-site h1,.rv-site h2,.rv-site h3,.rv-site p,.rv-site ul,.rv-site ol,.rv-site figure{margin:0}
.rv-site a,.rv-header a,.rv-footer a{color:inherit;text-decoration:none}
.rv-site a:hover{color:var(--rv-orange)}
.rv-site img{max-width:100%;display:block}
.rv-site button,.rv-header button{font:inherit;cursor:pointer}
.rv-site strong,.rv-header strong,.rv-footer strong{font-weight:700}
.rv-site h1,.rv-site h2,.rv-site h3{font-weight:600}
.rv-site a:focus-visible,.rv-site button:focus-visible,.rv-site summary:focus-visible,.rv-header a:focus-visible,.rv-header button:focus-visible{outline:3px solid #fb923c;outline-offset:4px}
.rv-container{width:min(1180px,calc(100% - 64px));margin:0 auto;max-width:1180px}
.rv-header{position:relative;background:#fff;color:var(--rv-ink);font:14px/1.5 "Microsoft YaHei","PingFang SC",Arial,sans-serif;z-index:40;border-bottom:1px solid #e3e7ea}
.rv-topbar{background:var(--rv-navy);color:#f1f5f9;font-size:12px}
.rv-topbar .rv-container{display:flex;align-items:center;justify-content:space-between;min-height:33px;gap:20px}
.rv-topbar .rv-container>div{display:flex;gap:24px}
.rv-topbar a:hover{color:#ffc58e}
.rv-header-row{display:flex;min-height:100px;justify-content:space-between;align-items:center;gap:28px}
.rv-brand{display:flex;align-items:center;gap:13px;flex-shrink:0}
.rv-logo{background:var(--rv-navy);display:flex;align-items:center;justify-content:center;width:62px;height:62px;border-radius:2px}
.rv-logo img{width:46px;height:46px;object-fit:contain}
.rv-brand strong{font-size:20px;display:block;letter-spacing:1px}
.rv-brand small{font-size:11px;display:block;color:#687586;margin-top:4px;letter-spacing:1px}
.rv-navigation{display:flex;align-items:center;gap:18px}
.rv-nav-group{position:relative;display:flex;align-items:center;min-height:62px;white-space:nowrap}
.rv-nav-group>a{font-size:14px;font-weight:600;padding:18px 0}
.rv-nav-group>a:hover{color:var(--rv-orange)}
.rv-sub-toggle{border:0;background:none;color:#687586;padding:4px;font-size:16px}
.rv-dropdown{display:none;position:absolute;top:56px;left:-18px;min-width:220px;padding:12px;background:#fff;box-shadow:0 12px 35px #11263c26;border-top:3px solid var(--rv-orange);z-index:50}
.rv-dropdown a{display:block;padding:10px;font-size:14px;color:#283f53}
.rv-dropdown a:hover{background:#fff3e9;color:#b74a08}
.rv-nav-group:hover .rv-dropdown,.rv-nav-group:focus-within .rv-dropdown,.rv-nav-group.rv-expanded .rv-dropdown{display:block}
.rv-menu-toggle{display:none;background:none;border:1px solid var(--rv-line);border-radius:3px;padding:8px 11px;color:var(--rv-ink)}
.rv-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border:1px solid var(--rv-orange);background:var(--rv-orange);color:white!important;font-size:15px;font-weight:600;line-height:1.6;border-radius:3px;transition:background .15s,transform .15s;text-decoration:none}
.rv-btn:hover{background:#b34707;border-color:#b34707;transform:translateY(-1px)}
.rv-nav-cta{padding:9px 15px;font-size:14px;white-space:nowrap}
.rv-btn-outline{border-color:#ffffff60;background:transparent}
.rv-btn-outline:hover{background:#ffffff16;border-color:#fff}
.rv-hero{background:var(--rv-navy);color:white;position:relative;overflow:hidden}
.rv-hero .rv-container{position:relative;padding-top:58px;padding-bottom:46px}
.rv-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:54px;align-items:center}
.rv-eyebrow{color:var(--rv-orange);font-size:12px;font-weight:700;letter-spacing:1.7px;line-height:1.6;margin-bottom:12px}
.rv-hero .rv-eyebrow{color:#ffb16f}
.rv-hero h1{font-size:38px;line-height:1.35;letter-spacing:.3px;max-width:760px;margin:12px 0 20px}
.rv-hero h1 span{display:block;font-size:19px;line-height:1.5;letter-spacing:3px;font-weight:500;color:#ffb16f;margin-top:10px}
.rv-hero p{font-size:17px;color:#dbe5ee;line-height:1.85;max-width:650px}
.rv-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.rv-hero figure{position:relative;border-left:4px solid var(--rv-orange);padding-left:0;overflow:hidden;margin:0}
.rv-hero figure img{width:100%;height:235px;object-fit:cover;object-position:50% 50%}
.rv-hero figcaption{font-size:10px;letter-spacing:2px;color:#c6d2de;padding:12px 15px;background:#0d2033}
.rv-hero-home .rv-container{padding-top:76px;padding-bottom:46px}
.rv-hero-home h1{font-size:47px;line-height:1.42}
.rv-hero-home figure img{height:290px}
.rv-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding-top:30px;border-top:1px solid #ffffff24;margin-top:42px}
.rv-stats>div{border-left:1px solid #ffffff30;padding-left:24px}
.rv-stats>div:first-child{border-left:0;padding-left:0}
.rv-stats strong{display:block;font-size:25px;line-height:1.4;letter-spacing:.3px}
.rv-stats span{display:block;font-size:12px;color:#b9c9d8;margin-top:6px}
.rv-provenance{margin:0;padding:18px 0;font-size:12px;line-height:1.6;color:#78828d;border-bottom:1px solid var(--rv-line)}
.rv-layout{display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:58px;padding-top:42px;padding-bottom:48px;align-items:start}
.rv-content{min-width:0}
.rv-lead{font-size:18px;line-height:2;color:#38516a;margin-bottom:10px!important}
.rv-section{padding:44px 0;border-bottom:1px solid var(--rv-line);scroll-margin-top:24px}
.rv-section h2{font-size:29px;line-height:1.45;margin:0 0 24px;letter-spacing:.2px}
.rv-section p{margin:0 0 18px;color:#4b5e70;font-size:16px;line-height:1.95}
.rv-section p:last-child{margin-bottom:0}
.rv-section h3{font-size:18px;line-height:1.6;margin:0 0 12px}
.rv-toc{position:sticky;top:26px}
.rv-toc>div{background:#f4f6f7;border-top:3px solid var(--rv-orange);padding:23px}
.rv-toc strong{display:block;font-size:17px;margin-bottom:16px}
.rv-toc a:not(.rv-btn){display:block;font-size:13px;line-height:1.7;padding:9px 0;border-top:1px solid #e2e7eb;color:#566677}
.rv-toc .rv-btn{display:flex;margin-top:18px;font-size:13px;padding:10px 12px}
.rv-toc .rv-toc-phone{text-align:center;border-top:0!important;font-size:16px!important;font-weight:600}
.rv-cards{display:grid;gap:18px;margin:24px 0}
.rv-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.rv-grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.rv-cards article{padding:24px;background:var(--rv-paper);border-top:2px solid #ccd6df}
.rv-cards h3{font-size:17px;margin:0 0 12px;line-height:1.6}
.rv-cards p{font-size:14px;line-height:1.9;margin:0}
.rv-modules{display:grid;gap:16px}
.rv-module{border:1px solid var(--rv-line);border-radius:3px;overflow:hidden}
.rv-module>div{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:15px 20px;background:#edf2f5}
.rv-module h3{font-size:18px;margin:0}
.rv-module span{font-size:12px;color:#637587;flex-shrink:0}
.rv-module ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 22px;list-style:none;padding:12px 20px 18px}
.rv-module li{font-size:15px;padding:10px 0;border-bottom:1px solid #edf0f2;line-height:1.7}
.rv-module li:before{content:"";display:inline-block;width:5px;height:5px;background:var(--rv-orange);margin:0 10px 3px 0}
.rv-note{font-size:12px!important;line-height:1.8!important;color:#6e7882!important;background:#faf7f0;padding:15px 18px;margin-top:18px!important;border-left:3px solid #e8bc86}
.rv-steps{list-style:none;padding:0;display:grid;gap:0}
.rv-steps li{display:flex;gap:22px;padding:23px 0;border-bottom:1px solid var(--rv-line)}
.rv-steps li:last-child{border:0}
.rv-steps li>span{font-family:Georgia,serif;font-size:31px;color:var(--rv-orange);width:45px;flex-shrink:0;line-height:1.3}
.rv-steps h3{font-size:18px;margin:0 0 7px}
.rv-steps p{font-size:15px;margin:0;line-height:1.9}
.rv-panel{background:#edf3f6;padding:22px 28px;border-left:3px solid #355974}
.rv-panel ul,.rv-section>ul{padding-left:20px;list-style:disc}
.rv-panel li,.rv-section>ul li{padding:7px 0;line-height:1.9;font-size:15px}
.rv-materials{padding-left:25px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 40px;margin:0 0 24px!important}
.rv-materials li{padding-left:5px;font-size:15px;line-height:1.85}
.rv-materials li::marker{color:var(--rv-orange);font-weight:700}
.rv-faq{border-top:1px solid var(--rv-line)}
.rv-faq details{border-bottom:1px solid var(--rv-line);padding:0 3px}
.rv-faq summary{font-size:16px;font-weight:600;padding:21px 26px 21px 0;position:relative;cursor:pointer;list-style:none}
.rv-faq summary::-webkit-details-marker{display:none}
.rv-faq summary:after{content:'+';position:absolute;right:0;top:19px;color:var(--rv-orange);font-size:23px;line-height:1}
.rv-faq details[open] summary:after{content:'−'}
.rv-faq details p{font-size:15px;margin:0 0 23px!important}
.rv-sources{font-size:12px;color:#677a88;line-height:1.9;padding:23px 0 12px}
.rv-sources a{border-bottom:1px solid #b6c2ce}
.rv-sources div{margin-top:5px}
.rv-cta{margin:46px 0 52px;padding:35px 40px;background:var(--rv-navy);color:white;display:grid;grid-template-columns:1fr auto;gap:35px;align-items:center}
.rv-cta .rv-eyebrow{color:#ffb16f}
.rv-cta h2{font-size:27px;line-height:1.5;margin:0 0 12px}
.rv-cta p{font-size:14px;color:#c9d8e4;max-width:720px;margin:0;line-height:1.9}
.rv-cta-actions{display:flex;align-items:center;flex-direction:column;gap:12px}
.rv-phone{font-size:22px;letter-spacing:1px;color:white!important}
.rv-project-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-bottom:20px}
.rv-project-cards article{border:1px solid var(--rv-line);padding:30px 26px;background:#fff;display:flex;flex-direction:column;border-top:4px solid var(--rv-orange)}
.rv-project-code{font-size:31px;font-weight:700;letter-spacing:1px;color:#b74a08;margin-bottom:13px}
.rv-project-cards h3{font-size:20px;margin:0 0 16px;line-height:1.5;min-height:60px}
.rv-project-cards p{font-size:15px;color:#62717f;line-height:1.85;margin:0 0 22px}
.rv-mini-stats{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto;padding-top:5px}
.rv-mini-stats span{font-size:12px;background:#f0f3f6;padding:5px 9px}
.rv-text-link{display:inline-block;font-size:14px;font-weight:600;color:#ab4406!important;margin-top:20px}
.rv-text-link:hover{text-decoration:underline}
.rv-table-wrap{overflow-x:auto;border:1px solid var(--rv-line)}
.rv-table{width:100%;min-width:650px;border-collapse:collapse;font-size:14px;line-height:1.8;text-align:left}
.rv-table th,.rv-table td{padding:16px 18px;border-bottom:1px solid var(--rv-line);vertical-align:top;font-size:14px}
.rv-table thead{background:var(--rv-navy);color:#fff}
.rv-table thead th{font-weight:600}
.rv-table tbody th{min-width:104px;white-space:nowrap;background:#f4f6f8;font-weight:500}
.rv-table tr:last-child>*{border-bottom:0}
.rv-info{padding-top:10px}
.rv-info>.rv-section{padding-top:54px;padding-bottom:54px}
.rv-info>.rv-section>p{max-width:950px}
.rv-facts{margin:0;border-top:1px solid var(--rv-line);font-size:16px}
.rv-facts>div{display:grid;grid-template-columns:180px 1fr;border-bottom:1px solid var(--rv-line);padding:15px 0;gap:25px}
.rv-facts dt{color:#78828d}.rv-facts dd{margin:0}
.rv-news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.rv-news-grid h3{padding:0 0 16px;border-bottom:3px solid var(--rv-orange);font-size:19px}
.rv-news-link{display:block;padding:19px 0;border-bottom:1px solid var(--rv-line)}
.rv-news-link time{font-size:12px;color:#788898;display:block;margin-bottom:8px;line-height:1.5}
.rv-news-link span{font-size:15px;line-height:1.8;display:block}
.rv-stories{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:20px}
.rv-story{border:1px solid var(--rv-line);overflow:hidden}
.rv-story img{height:180px;width:100%;object-fit:cover;object-position:center 30%;background:#e8edf0}
.rv-story a>div{padding:18px}
.rv-story h3{font-size:16px;line-height:1.75;margin:8px 0 12px}
.rv-story time{font-size:12px;color:#788898}
.rv-story span{font-size:12px;color:#b34707}
.rv-content .rv-stories{grid-template-columns:repeat(2,minmax(0,1fr))}
.rv-contact-panel{padding:34px;border:1px solid var(--rv-line);display:flex;align-items:center;justify-content:space-between;gap:24px;background:#f6f8f9}
.rv-contact-panel span{font-size:14px;color:#6d7b87;display:block}
.rv-contact-panel div>a{font-size:38px;color:#b34707;font-weight:600;display:block;line-height:1.5;margin:10px 0}
.rv-contact-panel p{font-size:15px;margin:0}
.rv-footer{background:#0b1d2e;color:#c2cfdc;font:14px/1.9 "Microsoft YaHei","PingFang SC",Arial,sans-serif;padding:50px 0 20px}
.rv-footer h2{font-size:23px;color:#fff;line-height:1.5;margin:0 0 17px;font-weight:500}
.rv-footer h3{font-size:15px;font-weight:600;color:#fff;margin:0 0 17px}
.rv-footer p{font-size:13px;margin:0;color:#a3b5c6;line-height:2}
.rv-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1fr;gap:30px}
.rv-footer-grid a{display:block;font-size:13px;margin:5px 0}
.rv-footer-grid a:hover{color:#ffb16f}
.rv-footer a.rv-footer-phone{font-size:22px;color:#fff;letter-spacing:.8px;line-height:1.5;margin-bottom:15px}
.rv-legal{border-top:1px solid #ffffff20;margin-top:38px;padding-top:22px;display:flex;flex-wrap:wrap;gap:8px 25px;font-size:12px;color:#94a6b8}
.rv-skip{position:absolute;left:20px;top:-80px;background:white;color:#14263e;padding:10px;z-index:100}.rv-skip:focus{top:5px}
.rv-legacy-banner .banner-title{font-size:25px!important}.rv-legacy-banner .banner-des{font-size:18px!important}
.rv-legacy-banner .banner-within .banner-item{height:210px!important}
@media(max-width:1100px){.rv-container{width:calc(100% - 44px)}.rv-header-row{gap:20px}.rv-navigation{gap:9px}.rv-brand strong{font-size:18px}.rv-brand small{font-size:10px;letter-spacing:0}.rv-logo{width:50px;height:54px}.rv-nav-group>a{font-size:13px}.rv-nav-cta{padding:8px 10px;font-size:13px}.rv-hero-grid{gap:30px}.rv-hero h1{font-size:34px}.rv-hero-home h1{font-size:41px}.rv-layout{gap:30px;grid-template-columns:minmax(0,1fr) 210px}.rv-cards article{padding:19px}.rv-grid-3{gap:12px}.rv-stories{gap:14px}}
@media(max-width:900px){.rv-header-row{min-height:82px}.rv-menu-toggle{display:block}.rv-navigation{display:none;position:absolute;left:0;right:0;top:115px;background:#fff;padding:15px 22px 25px;border-bottom:1px solid var(--rv-line);box-shadow:0 12px 18px #11263c18;max-height:calc(100dvh - 115px);overflow-y:auto}.rv-navigation.rv-open{display:block}.rv-nav-group{min-height:42px;display:flex;flex-wrap:wrap}.rv-nav-group>a{flex:1;font-size:15px;padding:12px 0}.rv-sub-toggle{padding:10px 12px}.rv-dropdown{position:static;width:100%;border:0;box-shadow:none;padding:0 0 8px 12px;background:#f6f8f9}.rv-nav-group:hover .rv-dropdown,.rv-nav-group:focus-within .rv-dropdown{display:none}.rv-nav-group.rv-expanded .rv-dropdown{display:block}.rv-nav-cta{margin-top:14px;display:flex;font-size:15px}.rv-layout{grid-template-columns:minmax(0,1fr)}.rv-toc{display:none}.rv-hero-grid{grid-template-columns:1.15fr .85fr}.rv-hero .rv-container{padding-top:36px;padding-bottom:32px}.rv-hero h1,.rv-hero-home h1{font-size:32px}.rv-hero figure img,.rv-hero-home figure img{height:240px}.rv-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.rv-project-cards{gap:16px}.rv-project-cards article{padding:24px 19px}.rv-project-cards h3{font-size:18px}.rv-cta{padding:30px}.rv-cta h2{font-size:23px}.rv-footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}}
@media(max-width:640px){.rv-container{width:calc(100% - 36px)}.rv-topbar .rv-container>span{font-size:10px}.rv-topbar .rv-container>div{gap:12px}.rv-topbar a{font-size:10px}.rv-topbar a:first-child{display:none}.rv-header-row{gap:12px}.rv-brand{gap:10px}.rv-brand strong{font-size:17px}.rv-brand small{font-size:10px}.rv-menu-toggle{font-size:12px}.rv-logo{width:45px;height:48px}.rv-logo img{width:38px;height:38px}.rv-hero-grid{display:flex;flex-direction:column;gap:27px;align-items:stretch}.rv-hero h1,.rv-hero-home h1{font-size:30px;line-height:1.5;margin:10px 0 15px}.rv-hero h1 span{font-size:17px;margin-top:5px}.rv-hero p{font-size:15px}.rv-hero .rv-eyebrow{font-size:10px;letter-spacing:1.4px}.rv-hero figure img,.rv-hero-home figure img{height:160px}.rv-hero figcaption{font-size:9px;padding:8px 12px;letter-spacing:1.5px}.rv-hero .rv-container{padding-top:30px;padding-bottom:28px}.rv-actions{margin-top:22px;gap:10px}.rv-btn{font-size:14px;padding:11px 17px}.rv-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 12px;margin-top:27px;padding-top:24px}.rv-stats>div{padding-left:17px}.rv-stats>div:nth-child(3){border:0;padding-left:0}.rv-stats strong{font-size:23px}.rv-stats span{font-size:11px}.rv-provenance{font-size:11px;line-height:1.85;padding:15px 0}.rv-layout{padding-top:26px;padding-bottom:15px}.rv-lead{font-size:16px;line-height:1.95}.rv-section,.rv-info>.rv-section{padding:32px 0}.rv-section h2{font-size:23px;margin-bottom:18px}.rv-section p{font-size:15px;line-height:1.95}.rv-eyebrow{font-size:10px;margin-bottom:8px}.rv-grid-3,.rv-grid-2{grid-template-columns:1fr;gap:12px}.rv-cards{margin:19px 0}.rv-cards article{padding:21px}.rv-cards h3{font-size:17px;margin-bottom:9px}.rv-cards p{font-size:14px}.rv-module>div{display:block;padding:14px 17px}.rv-module h3{font-size:17px}.rv-module span{display:block;margin-top:4px;font-size:11px}.rv-module ul{grid-template-columns:1fr;padding:8px 17px 14px}.rv-module li{font-size:14px;padding:10px 0}.rv-note{font-size:11px!important;padding:13px 15px}.rv-steps li{gap:13px;padding:20px 0}.rv-steps li>span{font-size:27px;width:33px}.rv-steps h3{font-size:17px}.rv-steps p{font-size:14px}.rv-materials{grid-template-columns:1fr;padding-left:23px;gap:12px}.rv-materials li{font-size:14px}.rv-panel{padding:17px 19px}.rv-panel li{font-size:14px}.rv-faq summary{font-size:15px;line-height:1.85;padding:18px 24px 18px 0}.rv-faq details p{font-size:14px}.rv-stories,.rv-content .rv-stories{grid-template-columns:1fr;gap:18px}.rv-story img{height:205px}.rv-story h3{font-size:16px}.rv-cta{grid-template-columns:1fr;padding:26px 23px;gap:22px;margin:32px 0}.rv-cta h2{font-size:23px}.rv-cta p{font-size:13px}.rv-cta-actions{align-items:stretch;text-align:center;gap:10px}.rv-cta-actions .rv-phone{font-size:21px}.rv-project-cards{grid-template-columns:1fr;gap:18px}.rv-project-cards article{padding:25px}.rv-project-cards h3{min-height:0;font-size:21px;margin-bottom:12px}.rv-project-code{font-size:29px;margin-bottom:9px}.rv-project-cards p{font-size:14px;margin-bottom:17px}.rv-news-grid{grid-template-columns:1fr;gap:29px}.rv-news-link{padding:15px 0}.rv-news-grid h3{font-size:18px;padding-bottom:12px}.rv-facts{font-size:14px}.rv-facts>div{grid-template-columns:100px 1fr;gap:12px;padding:13px 0}.rv-contact-panel{display:block;padding:24px}.rv-contact-panel div>a{font-size:30px}.rv-contact-panel>.rv-btn{margin-top:18px}.rv-footer{padding:36px 0 20px}.rv-footer-grid{grid-template-columns:1fr;gap:27px}.rv-footer h2{font-size:23px}.rv-footer-grid>div:first-child{border-bottom:1px solid #ffffff20;padding-bottom:24px}.rv-legal{gap:8px 18px;margin-top:28px;font-size:11px}.rv-legacy-banner .banner-within .banner-item{height:140px!important}}
@media(prefers-reduced-motion:reduce){.rv-btn{transition:none}.rv-btn:hover{transform:none}}