/* roulang page: index */
:root{--ink:#173c3b;--ink-2:#132a29;--teal:#257a70;--mint:#86cbb4;--amber:#d77a42;--paper:#f7f7f2;--mist:#edf4f0;--stone:#e7e9e5;--text:#203331;--muted:#61716d;--line:#d5e1db;--white:#fff;--radius:22px;--radius-sm:14px;--shadow:0 16px 38px rgba(23,60,59,.10);--shadow-hover:0 22px 45px rgba(23,60,59,.16);--ease:all .2s ease}
    *{box-sizing:border-box} html{scroll-behavior:smooth;scroll-padding-top:110px} body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;color:var(--text);background:var(--paper);font-size:16px;line-height:1.8;overflow-x:hidden} a{color:inherit;text-decoration:none;transition:var(--ease)} img{max-width:100%;display:block} button,input,select,textarea{font:inherit} button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(215,122,66,.48);outline-offset:3px}.container{max-width:1240px}.topbar{background:var(--ink-2);color:#d7e7df;font-size:13px}.topbar .inner{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:18px}.topbar i{color:var(--mint);margin-right:6px}.site-header{position:sticky;top:0;z-index:1030;background:rgba(247,247,242,.96);border-bottom:1px solid rgba(23,60,59,.08);transition:var(--ease)}.site-header.scrolled{box-shadow:0 8px 24px rgba(23,60,59,.10);background:rgba(255,255,255,.98)}.nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:800;font-size:20px;color:var(--ink);letter-spacing:.02em}.brand-mark{width:35px;height:35px;border-radius:11px;background:linear-gradient(135deg,var(--ink),var(--teal),var(--mint));display:grid;place-items:center;color:#fff;font-size:16px}.main-nav{display:flex;align-items:center;gap:3px;margin-left:auto}.main-nav a{padding:12px 13px;border-radius:10px;font-size:15px;font-weight:600;color:#3a514d}.main-nav a:hover,.main-nav a.active{background:var(--mist);color:var(--ink)}.nav-cta,.btn-main{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:13px;background:linear-gradient(110deg,var(--ink),var(--teal));color:#fff!important;font-weight:700;min-height:46px;padding:0 19px;box-shadow:0 8px 18px rgba(23,60,59,.18)}.nav-cta:hover,.btn-main:hover{transform:translateY(-2px);background:linear-gradient(110deg,#1d514e,#319184);box-shadow:0 12px 24px rgba(23,60,59,.23)}.btn-light{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 19px;border:1px solid rgba(255,255,255,.66);border-radius:13px;color:#fff;font-weight:700;background:rgba(255,255,255,.08)}.btn-light:hover{background:#fff;color:var(--ink)}.nav-toggler{display:none;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:10px;width:46px;height:46px}.offcanvas{background:var(--paper)}.offcanvas-header{border-bottom:1px solid var(--line)}.mobile-nav a{display:flex;align-items:center;min-height:48px;padding:10px 4px;border-bottom:1px solid var(--line);font-weight:700;color:var(--ink)}.section{padding:92px 0;position:relative}.section-soft{background:var(--mist)}.eyebrow{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--teal);text-transform:uppercase}.eyebrow:before{content:"";width:22px;height:2px;background:var(--amber)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(36px,4.1vw,54px);line-height:1.22;letter-spacing:-.04em;font-weight:800}h2{font-size:clamp(29px,3vw,39px);line-height:1.3;letter-spacing:-.03em;font-weight:800;color:var(--ink)}h3{font-size:20px;line-height:1.45;font-weight:800;color:var(--ink)}.lead{font-size:17px;line-height:1.9;color:var(--muted)}.section-head{max-width:760px;margin-bottom:40px}.hero{position:relative;min-height:570px;color:#fff;overflow:hidden;background:var(--ink-2)}.hero .carousel,.hero .carousel-inner,.hero .carousel-item{height:570px}.hero-slide{height:100%;background-size:cover;background-position:center}.hero-slide:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(19,42,41,.95) 0%,rgba(23,60,59,.83) 47%,rgba(23,60,59,.35) 100%)}.hero-content{position:relative;z-index:2;height:100%;display:flex;align-items:center;padding-bottom:28px}.hero-copy{max-width:770px}.hero .eyebrow{color:#d8f0e6}.hero h1{max-width:790px;margin:14px 0 18px}.hero p{max-width:740px;font-size:17px;line-height:1.9;color:#e3f0eb;margin-bottom:26px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px}.hero-badges{display:flex;flex-wrap:wrap;gap:9px;margin-top:28px}.data-badge{display:inline-flex;align-items:center;gap:7px;padding:7px 11px;border:1px solid rgba(134,203,180,.35);border-radius:999px;background:rgba(10,34,32,.30);color:#effbf6;font-size:13px;font-weight:700}.data-badge i{color:var(--mint)}.carousel-indicators{justify-content:flex-start;left:calc((100% - 1240px)/2);right:auto;margin-left:12px;bottom:22px}.carousel-indicators [data-bs-target]{width:28px;height:3px;border:0;border-radius:3px}.carousel-control-prev,.carousel-control-next{width:7%;opacity:.75}.intro-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:68px;align-items:center}.image-frame{position:relative}.image-frame img{width:100%;height:470px;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow)}.image-note{position:absolute;right:-18px;bottom:26px;padding:16px 18px;background:#fff;border-radius:16px;box-shadow:var(--shadow);font-size:14px;font-weight:700;color:var(--ink)}.image-note strong{display:block;font-size:25px;color:var(--amber);line-height:1.2}.service-tags,.tag-row{display:flex;flex-wrap:wrap;gap:9px}.soft-tag{display:inline-flex;align-items:center;padding:6px 10px;border-radius:9px;background:var(--mist);color:var(--ink);font-size:13px;font-weight:700}.mini-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;margin-top:28px}.mini-flow div{position:relative;padding:12px 9px;border-top:2px solid var(--mint);background:#fff;font-size:12px;font-weight:700;color:var(--ink)}.mini-flow b{display:block;color:var(--amber);font-size:13px}.value-grid{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:18px}.value-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;min-height:245px;box-shadow:0 8px 22px rgba(23,60,59,.05);transition:var(--ease)}.value-card:nth-child(2){margin-top:28px;background:var(--ink);color:#fff}.value-card:hover,.adv-card:hover,.scene-card:hover,.story-card:hover,.review-card:hover,.news-item:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:var(--mint)}.value-card:nth-child(2) h3,.value-card:nth-child(2) p{color:#fff}.value-card p{font-size:14px;color:var(--muted);margin-bottom:18px}.value-icon{width:45px;height:45px;display:grid;place-items:center;border-radius:13px;background:var(--mist);color:var(--teal);font-size:19px;margin-bottom:22px}.value-card:nth-child(2) .value-icon{background:rgba(134,203,180,.16);color:var(--mint)}.panel-line{display:flex;align-items:center;gap:8px;padding:9px 0;border-top:1px solid rgba(255,255,255,.18);font-size:13px}.panel-line i{color:var(--amber)}.scene-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}.scene-stack{display:grid;gap:20px}.scene-card{min-height:248px;position:relative;overflow:hidden;border-radius:var(--radius);background:var(--ink);color:#fff;transition:var(--ease)}.scene-card.tall{min-height:516px}.scene-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.63}.scene-card:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(19,42,41,.92),rgba(19,42,41,.12))}.scene-copy{position:absolute;z-index:2;left:25px;right:25px;bottom:21px}.scene-copy h3{color:#fff;margin-bottom:5px}.scene-copy p{font-size:14px;line-height:1.65;margin:0;color:#e4f0ea}.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.adv-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;transition:var(--ease)}.adv-num{font-size:13px;font-weight:800;color:var(--amber)}.adv-card i{display:block;color:var(--teal);font-size:22px;margin:12px 0}.adv-card p{font-size:14px;line-height:1.7;color:var(--muted);margin:0}.solution-grid{display:grid;grid-template-columns:5fr 4fr 5fr;gap:18px}.solution-card{position:relative;min-height:430px;overflow:hidden;border-radius:var(--radius);background:var(--ink);color:#fff}.solution-card:nth-child(2){min-height:485px;margin-top:-25px}.solution-card img{width:100%;height:100%;position:absolute;object-fit:cover;opacity:.56}.solution-card:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(19,42,41,.97),rgba(19,42,41,.05))}.solution-info{position:absolute;z-index:2;left:23px;right:23px;bottom:23px}.solution-info h3{color:#fff}.solution-info p{font-size:13px;line-height:1.7;color:#dfece6}.solution-info .soft-tag{background:rgba(255,255,255,.13);color:#fff}.dark-section{background:var(--ink-2);color:#e3f0eb;overflow:hidden}.dark-section h2{color:#fff}.case-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px;align-items:center}.case-number{font-size:100px;line-height:.8;font-weight:800;letter-spacing:-.08em;color:var(--mint);opacity:.95}.case-lead{font-size:18px;line-height:1.8;color:#e0eee8}.timeline{border-left:1px solid rgba(134,203,180,.38);padding-left:30px}.timeline-item{position:relative;padding:0 0 25px}.timeline-item:before{content:"";position:absolute;width:12px;height:12px;border-radius:50%;left:-37px;top:6px;background:var(--amber);box-shadow:0 0 0 5px rgba(215,122,66,.15)}.timeline-item h3{color:#fff;font-size:18px;margin-bottom:5px}.timeline-item p{font-size:14px;color:#c4d8d0;margin:0}.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.story-card{display:grid;grid-template-columns:200px 1fr;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:var(--ease)}.story-card img{width:100%;height:100%;min-height:265px;object-fit:cover}.story-body{padding:25px}.story-body p{font-size:14px;color:var(--muted);margin-bottom:12px}.record-list{list-style:none;padding:0;margin:0}.record-list li{font-size:13px;border-top:1px solid var(--line);padding:8px 0}.record-list i{color:var(--teal);margin-right:7px}.stats{background:linear-gradient(110deg,#e5f1eb,#f7f7f2)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.stat-item{padding:10px 24px;border-right:1px solid var(--line)}.stat-item:last-child{border-right:0}.stat-num{font-size:43px;line-height:1.1;color:var(--ink);font-weight:800;letter-spacing:-.05em}.stat-num em{font-size:20px;font-style:normal;color:var(--amber)}.stat-item p{font-size:13px;color:var(--muted);margin:8px 0 0}.review-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:24px}.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.review-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;transition:var(--ease)}.review-card p{font-size:14px;line-height:1.75;color:#40534f}.role{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:700}.role-mark{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--mist);color:var(--teal)}.score-panel{padding:27px;border-radius:var(--radius);background:var(--ink);color:#fff}.score-panel h3{color:#fff}.score-row{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.15);font-size:14px}.score-row b{color:var(--mint)}.news-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:50px}.news-item{display:grid;grid-template-columns:105px 1fr;gap:18px;padding:18px 0;border-top:1px solid var(--line);transition:var(--ease)}.news-date{font-size:13px;font-weight:800;color:var(--amber)}.news-item h3{font-size:18px;margin:4px 0}.news-item p{font-size:14px;color:var(--muted);line-height:1.7;margin:0}.resource-box{background:var(--ink);color:#fff;border-radius:var(--radius);padding:32px}.resource-box h3{color:#fff}.resource-box p{color:#cde1d8;font-size:14px}.resource-line{padding:12px 0;border-top:1px solid rgba(255,255,255,.16);font-size:14px}.resource-line i{color:var(--mint);margin-right:8px}.accordion{--bs-accordion-border-color:var(--line);--bs-accordion-btn-focus-box-shadow:none;--bs-accordion-active-bg:var(--mist);--bs-accordion-active-color:var(--ink)}.accordion-item{margin-bottom:11px;border:1px solid var(--line)!important;border-radius:14px!important;overflow:hidden;background:#fff}.accordion-button{min-height:58px;padding:16px 20px;font-weight:800;color:var(--ink);background:#fff}.accordion-button:not(.collapsed){box-shadow:none}.accordion-body{color:var(--muted);font-size:15px;line-height:1.8;padding:4px 20px 20px}.assurance{padding:30px 0;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.assurance-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.assurance-item{display:flex;align-items:center;gap:13px;padding:0 18px;border-right:1px solid var(--line)}.assurance-item:last-child{border:0}.assurance-item i{font-size:23px;color:var(--amber)}.assurance-item b{display:block;font-size:15px;color:var(--ink)}.assurance-item span{font-size:12px;color:var(--muted)}.contact-box{padding:54px;border-radius:28px;background:linear-gradient(120deg,var(--ink),var(--teal) 62%,#4c9c8d);color:#fff}.contact-box h2{color:#fff}.contact-box p{color:#e0f1ea}.contact-form{padding:23px;background:#fff;border-radius:18px;color:var(--text)}.form-label{font-size:13px;font-weight:800;color:var(--ink);margin-bottom:5px}.form-control,.form-select{border:1px solid var(--line);border-radius:10px;min-height:43px;color:var(--text);background:#fbfcfa}.form-control:focus,.form-select:focus{border-color:var(--teal);box-shadow:0 0 0 .22rem rgba(37,122,112,.14)}textarea.form-control{min-height:86px}.privacy{font-size:12px;line-height:1.6;color:var(--muted)}.form-feedback{display:none;margin-top:12px;padding:9px 12px;border-radius:9px;background:var(--mist);color:var(--ink);font-size:13px;font-weight:700}.site-footer{background:var(--ink-2);color:#c3d7cf;padding:62px 0 85px}.footer-brand{color:#fff;font-size:21px;font-weight:800;margin-bottom:15px}.footer-title{font-size:14px;font-weight:800;color:#fff;margin-bottom:14px}.footer-links a{display:block;font-size:14px;margin:8px 0;color:#c3d7cf}.footer-links a:hover{color:var(--mint);padding-left:3px}.footer-contact{font-size:14px;line-height:2;color:#c3d7cf}.footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:34px;padding-top:20px;font-size:12px;color:#92aba1}.fixed-cta{position:fixed;right:20px;bottom:18px;z-index:1020;display:flex;align-items:center;gap:12px;padding:10px 12px 10px 17px;border-radius:15px;background:rgba(19,42,41,.96);box-shadow:0 14px 30px rgba(0,0,0,.24);color:#fff}.fixed-cta small{display:block;color:#bbd2c8;font-size:11px}.fixed-cta b{font-size:14px}.fixed-cta a{display:grid;place-items:center;width:42px;height:42px;border-radius:11px;background:var(--amber);color:#fff}.fixed-cta a:hover{background:#ec965e}
    @media(max-width:991px){.main-nav,.nav-wrap>.nav-cta{display:none}.nav-toggler{display:block;margin-left:auto}.intro-grid,.case-grid,.news-layout,.review-layout{grid-template-columns:1fr;gap:35px}.value-grid{grid-template-columns:repeat(2,1fr)}.value-card:nth-child(2){margin-top:0}.solution-grid{grid-template-columns:repeat(3,1fr)}.solution-card:nth-child(2){margin-top:0;min-height:430px}.story-card{grid-template-columns:160px 1fr}.hero .carousel,.hero .carousel-inner,.hero .carousel-item{height:600px}.image-frame img{height:390px}}
    @media(max-width:767px){.topbar .inner{justify-content:center;min-height:31px}.topbar .right-info{display:none}.nav-wrap{min-height:66px}.brand{font-size:17px}.section{padding:64px 0}.hero .carousel,.hero .carousel-inner,.hero .carousel-item{height:630px}.hero-content{padding-bottom:48px}.hero p{font-size:15px}.carousel-control-prev,.carousel-control-next{display:none}.carousel-indicators{left:18px;margin-left:0}.mini-flow{grid-template-columns:repeat(2,1fr)}.value-grid,.scene-layout,.adv-grid,.solution-grid,.story-grid,.stats-grid,.review-grid{grid-template-columns:1fr}.scene-card.tall,.scene-card{min-height:300px}.solution-card,.solution-card:nth-child(2){min-height:370px}.story-card{grid-template-columns:1fr}.story-card img{height:190px;min-height:0}.stat-item{border-right:0;border-bottom:1px solid var(--line);padding:17px 8px}.stat-item:last-child{border-bottom:0}.assurance-grid{grid-template-columns:1fr 1fr}.assurance-item{padding:8px;border-right:0}.contact-box{padding:29px 20px}.image-note{right:10px;bottom:15px}.fixed-cta{left:10px;right:10px;bottom:8px;justify-content:space-between}.site-footer{padding-bottom:105px}}
    @media(max-width:520px){h1{font-size:34px}.hero .carousel,.hero .carousel-inner,.hero .carousel-item{height:670px}.hero-actions .btn-main,.hero-actions .btn-light{width:100%}.assurance-grid{grid-template-columns:1fr}.image-frame img{height:330px}.section-head{margin-bottom:28px}.stat-num{font-size:38px}}
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: category1 */
:root{
      --ink:#173c3b;--ink-2:#132a29;--teal:#257a70;--mint:#86cbb4;--amber:#d77a42;
      --paper:#f7f7f2;--mist:#edf4f0;--stone:#e7e9e5;--text:#203331;--muted:#61716d;
      --line:#d5e1db;--white:#fff;--radius:22px;--radius-sm:14px;
      --shadow:0 16px 38px rgba(23,60,59,.10);--shadow-hover:0 22px 45px rgba(23,60,59,.16);
      --ease:all .2s ease
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:112px}
    body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:16px;line-height:1.8;overflow-x:hidden}
    a{text-decoration:none;color:inherit;transition:var(--ease)}
    img{display:block;max-width:100%}
    button,input,select,textarea{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(215,122,66,.48);outline-offset:3px}
    .container{max-width:1240px}
    .topbar{background:var(--ink-2);color:#d7e7df;font-size:13px}
    .topbar .inner{min-height:35px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .topbar i{color:var(--mint);margin-right:6px}
    .site-header{position:sticky;top:0;z-index:1030;background:rgba(247,247,242,.96);border-bottom:1px solid rgba(23,60,59,.08);transition:var(--ease)}
    .site-header.scrolled{background:rgba(255,255,255,.98);box-shadow:0 8px 24px rgba(23,60,59,.10)}
    .nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:800;font-size:20px;color:var(--ink);letter-spacing:.02em}
    .brand-mark{width:35px;height:35px;border-radius:11px;background:linear-gradient(135deg,var(--ink),var(--teal),var(--mint));display:grid;place-items:center;color:#fff;font-size:16px}
    .main-nav{display:flex;align-items:center;gap:3px;margin-left:auto}
    .main-nav a{padding:12px 13px;border-radius:10px;font-size:15px;font-weight:600;color:#3a514d}
    .main-nav a:hover,.main-nav a.active{background:var(--mist);color:var(--ink)}
    .nav-cta,.btn-main{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 19px;border:0;border-radius:13px;background:linear-gradient(110deg,var(--ink),var(--teal));color:#fff!important;font-weight:700;box-shadow:0 8px 18px rgba(23,60,59,.18);transition:var(--ease)}
    .nav-cta:hover,.btn-main:hover{transform:translateY(-2px);background:linear-gradient(110deg,#1d514e,#319184);box-shadow:0 12px 24px rgba(23,60,59,.23)}
    .btn-outline{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 19px;border:1px solid var(--teal);border-radius:13px;color:var(--ink);font-weight:700;background:transparent;transition:var(--ease)}
    .btn-outline:hover{background:var(--mist);transform:translateY(-2px)}
    .nav-toggler{display:none;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:10px;width:46px;height:46px}
    .offcanvas{background:var(--paper)}
    .offcanvas-header{border-bottom:1px solid var(--line)}
    .mobile-nav a{display:flex;align-items:center;min-height:48px;padding:10px 4px;border-bottom:1px solid var(--line);font-weight:700;color:var(--ink)}
    .section{padding:88px 0;position:relative}
    .section-soft{background:var(--mist)}
    .eyebrow{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--teal)}
    .eyebrow:before{content:"";width:22px;height:2px;background:var(--amber)}
    h1,h2,h3{color:var(--ink);font-weight:800;line-height:1.25;margin-top:0}
    h1{font-size:clamp(34px,4.5vw,54px);letter-spacing:-.04em}
    h2{font-size:clamp(29px,3vw,38px);letter-spacing:-.025em}
    h3{font-size:20px}
    .lead{font-size:17px;line-height:1.9;color:var(--muted)}
    .section-head{max-width:760px;margin-bottom:38px}
    .page-hero{padding:68px 0 72px;background:linear-gradient(115deg,rgba(237,244,240,.96),rgba(247,247,242,.82)),url('/assets/images/backpic/back-4.webp') center/cover;position:relative;overflow:hidden}
    .page-hero:after{content:"";position:absolute;right:-100px;top:-130px;width:360px;height:360px;border:1px solid rgba(37,122,112,.18);border-radius:48px;transform:rotate(28deg)}
    .page-hero .container{position:relative;z-index:1}
    .crumbs{font-size:13px;color:var(--muted);margin-bottom:25px}
    .crumbs a:hover{color:var(--teal)}
    .hero-copy{max-width:820px}
    .hero-copy p{max-width:790px;margin:20px 0 25px;color:var(--muted);font-size:17px}
    .metric-row{display:flex;flex-wrap:wrap;gap:10px}
    .metric{display:inline-flex;align-items:center;gap:8px;padding:8px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink);font-size:13px;font-weight:700}
    .metric strong{color:var(--amber);font-size:16px}
    .index-panel{display:flex;flex-wrap:wrap;gap:12px;padding:21px 24px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 8px 22px rgba(23,60,59,.05)}
    .index-panel a{display:inline-flex;align-items:center;gap:8px;padding:10px 15px;border-radius:11px;background:var(--mist);color:var(--ink);font-weight:700;font-size:14px}
    .index-panel a:hover,.index-panel a.current{background:var(--ink);color:#fff}
    .index-panel span{color:var(--amber);font-size:12px}
    .filter-row{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:24px}
    .filter-label{font-weight:800;color:var(--ink)}
    .filter-tags{display:flex;flex-wrap:wrap;gap:8px}
    .soft-tag{padding:6px 11px;border-radius:9px;background:var(--mist);color:var(--ink);font-size:13px;font-weight:700}
    .solution-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
    .solution-item{display:grid;grid-template-columns:190px 1fr;min-height:218px;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 8px 22px rgba(23,60,59,.05);transition:var(--ease)}
    .solution-item:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:var(--mint)}
    .solution-item img{width:100%;height:100%;min-height:218px;object-fit:cover}
    .solution-body{padding:22px}
    .solution-body h3{margin:9px 0 8px;font-size:20px}
    .solution-body p{margin:0 0 14px;color:var(--muted);font-size:14px;line-height:1.7}
    .solution-type{font-size:12px;color:var(--amber);font-weight:800;letter-spacing:.08em}
    .read-link{font-size:14px;color:var(--teal);font-weight:800}
    .read-link:hover{color:var(--amber)}
    .parameter-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:stretch}
    .parameter-intro{padding:30px;border-radius:var(--radius);background:var(--ink);color:#e5f1eb}
    .parameter-intro h2,.parameter-intro h3{color:#fff}
    .parameter-intro p{color:#c8ddd5}
    .parameter-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .parameter-card{padding:20px;background:#fff;border:1px solid var(--line);border-radius:16px}
    .parameter-card small{display:block;color:var(--muted);font-size:12px;margin-bottom:7px}
    .parameter-card strong{font-size:17px;color:var(--ink)}
    .flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
    .flow:before{content:"";position:absolute;top:23px;left:7%;right:7%;height:2px;background:var(--line)}
    .flow-step{position:relative;z-index:1;text-align:center;padding:0 12px}
    .flow-number{width:48px;height:48px;margin:0 auto 16px;display:grid;place-items:center;border-radius:15px;background:var(--ink);color:var(--mint);font-weight:800;border:5px solid var(--paper)}
    .flow-step h3{font-size:16px;margin-bottom:7px}
    .flow-step p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
    .scene-layout{display:grid;grid-template-columns:1.12fr .88fr;gap:20px;align-items:stretch}
    .scene-feature{min-height:370px;border-radius:var(--radius);overflow:hidden;position:relative;background:var(--ink)}
    .scene-feature img{width:100%;height:100%;object-fit:cover;opacity:.7}
    .scene-feature:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(19,42,41,.93),rgba(19,42,41,.08))}
    .scene-content{position:absolute;z-index:1;left:30px;right:30px;bottom:27px;color:#fff}
    .scene-content h2{color:#fff;font-size:27px;margin:10px 0}
    .scene-content p{color:#d5e8df;margin:0;max-width:600px}
    .scene-side{display:grid;gap:20px}
    .scene-mini{padding:25px;border:1px solid var(--line);border-radius:20px;background:#fff}
    .scene-mini i{font-size:24px;color:var(--teal);margin-bottom:16px}
    .scene-mini h3{margin-bottom:8px}
    .scene-mini p{font-size:14px;color:var(--muted);margin:0}
    .faq-list{max-width:900px}
    .accordion-item{border:1px solid var(--line)!important;border-radius:14px!important;overflow:hidden;margin-bottom:10px;background:#fff}
    .accordion-button{min-height:58px;padding:16px 20px;background:#fff;color:var(--ink);font-weight:800;box-shadow:none!important}
    .accordion-button:not(.collapsed){background:var(--mist);color:var(--ink)}
    .accordion-button:after{filter:sepia(30%) hue-rotate(100deg)}
    .accordion-body{padding:4px 20px 20px;color:var(--muted);font-size:15px}
    .contact-strip{background:linear-gradient(110deg,var(--ink),var(--teal));border-radius:var(--radius);padding:35px;color:#fff}
    .contact-strip h2{color:#fff;font-size:29px;margin-bottom:10px}
    .contact-strip p{color:#d7ebe3;margin-bottom:0}
    .contact-form{background:#fff;border-radius:17px;padding:24px}
    .form-label{font-size:13px;font-weight:800;color:var(--ink);margin-bottom:5px}
    .form-control,.form-select{border:1px solid var(--line);border-radius:10px;min-height:46px;color:var(--text)}
    .form-control:focus,.form-select:focus{border-color:var(--teal);box-shadow:0 0 0 .2rem rgba(37,122,112,.14)}
    .privacy{font-size:12px;color:var(--muted);line-height:1.6}
    .site-footer{padding:65px 0 28px;background:var(--ink-2);color:#d7e7df}
    .footer-brand{font-size:22px;font-weight:800;color:#fff;margin-bottom:12px}
    .footer-contact{color:#bcd0c8;font-size:14px;line-height:2}
    .footer-contact i{width:21px;color:var(--mint)}
    .footer-title{font-weight:800;color:#fff;margin-bottom:15px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:14px;color:#bcd0c8}
    .footer-links a:hover{color:var(--mint);padding-left:3px}
    .footer-bottom{border-top:1px solid rgba(215,231,223,.16);margin-top:38px;padding-top:22px;color:#9fb6ad;font-size:13px}
    .fixed-contact{position:fixed;right:24px;bottom:24px;z-index:1020;display:flex;align-items:center;gap:12px;padding:10px 12px 10px 17px;border-radius:15px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);font-size:14px;font-weight:700;color:var(--ink)}
    .fixed-contact strong{color:var(--amber)}
    .fixed-contact .btn-main{min-height:38px;padding:0 14px;font-size:13px}
    @media(max-width:991px){
      .main-nav,.nav-cta{display:none}.nav-toggler{display:block;margin-left:auto}
      .nav-wrap{min-height:68px}.parameter-wrap,.scene-layout{grid-template-columns:1fr}
      .flow{grid-template-columns:repeat(3,1fr);row-gap:28px}.flow:before{display:none}
    }
    @media(max-width:767px){
      .section{padding:65px 0}.page-hero{padding:45px 0 52px}h1{font-size:36px}
      .solution-list{grid-template-columns:1fr}.solution-item{grid-template-columns:125px 1fr}
      .solution-item img{min-height:230px}.solution-body{padding:17px}.solution-body h3{font-size:18px}
      .filter-row{display:block}.filter-label{margin-bottom:10px;display:block}
      .flow{grid-template-columns:1fr;text-align:left}.flow-step{display:grid;grid-template-columns:48px 1fr;gap:14px;text-align:left;padding:0}.flow-number{margin:0;grid-row:span 2}.flow-step h3{margin:5px 0 0}.flow-step p{grid-column:2}
      .topbar .inner{min-height:32px;font-size:12px}.topbar .inner span:last-child{display:none}
      .fixed-contact{left:12px;right:12px;bottom:12px;justify-content:space-between}
    }
    @media(max-width:520px){
      .brand{font-size:17px}.brand-mark{width:32px;height:32px}.hero-copy p,.lead{font-size:15px}
      .solution-item{grid-template-columns:1fr}.solution-item img{height:150px;min-height:150px}
      .parameter-grid{grid-template-columns:1fr}.contact-strip{padding:24px 18px}.contact-form{padding:18px}
      .metric{font-size:12px}.index-panel{padding:16px}
    }
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category2 */
:root{--ink:#173c3b;--ink-2:#132a29;--teal:#257a70;--mint:#86cbb4;--amber:#d77a42;--paper:#f7f7f2;--mist:#edf4f0;--stone:#e7e9e5;--text:#203331;--muted:#61716d;--line:#d5e1db;--white:#fff;--radius:22px;--radius-sm:14px;--shadow:0 16px 38px rgba(23,60,59,.10);--shadow-hover:0 22px 45px rgba(23,60,59,.16);--ease:all .2s ease}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;color:var(--text);background:var(--paper);font-size:16px;line-height:1.8;overflow-x:hidden}
a{color:inherit;text-decoration:none;transition:var(--ease)}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(215,122,66,.48);outline-offset:3px}
.container{max-width:1240px}
.topbar{background:var(--ink-2);color:#d7e7df;font-size:13px}
.topbar .inner{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.topbar i{color:var(--mint);margin-right:6px}
.site-header{position:sticky;top:0;z-index:1030;background:rgba(247,247,242,.96);border-bottom:1px solid rgba(23,60,59,.08);transition:var(--ease)}
.site-header.scrolled{box-shadow:0 8px 24px rgba(23,60,59,.1);background:rgba(255,255,255,.98)}
.nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:800;font-size:20px;color:var(--ink);letter-spacing:.02em}
.brand-mark{width:35px;height:35px;border-radius:11px;background:linear-gradient(135deg,var(--ink),var(--teal),var(--mint));display:grid;place-items:center;color:#fff;font-size:16px}
.main-nav{display:flex;align-items:center;gap:3px;margin-left:auto}
.main-nav a{padding:12px 13px;border-radius:10px;font-size:15px;font-weight:600;color:#3a514d}
.main-nav a:hover,.main-nav a.active{background:var(--mist);color:var(--ink)}
.nav-cta,.btn-main{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:13px;background:linear-gradient(110deg,var(--ink),var(--teal));color:#fff!important;font-weight:700;min-height:46px;padding:0 19px;box-shadow:0 8px 18px rgba(23,60,59,.18)}
.nav-cta:hover,.btn-main:hover{transform:translateY(-2px);background:linear-gradient(110deg,#1d514e,#319184);box-shadow:0 12px 24px rgba(23,60,59,.23)}
.nav-toggler{display:none;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:10px;width:46px;height:46px}
.offcanvas{background:var(--paper)}
.offcanvas-header{border-bottom:1px solid var(--line)}
.mobile-nav a{display:flex;align-items:center;min-height:48px;padding:10px 4px;border-bottom:1px solid var(--line);font-weight:700;color:var(--ink)}
.section{padding:86px 0;position:relative}
.section-soft{background:var(--mist)}
.eyebrow{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--teal)}
.eyebrow:before{content:"";width:22px;height:2px;background:var(--amber)}
h1,h2,h3{color:var(--ink);font-weight:800;line-height:1.25;margin-top:0}
h1{font-size:clamp(36px,5vw,54px);letter-spacing:-.04em}
h2{font-size:clamp(28px,3vw,38px);margin-bottom:16px}
h3{font-size:20px}
.lead{font-size:17px;line-height:1.9;color:var(--muted)}
.hero-inner{padding:74px 0 70px;background:linear-gradient(105deg,rgba(237,244,240,.96),rgba(247,247,242,.84)),url('/assets/images/backpic/back-4.webp') center/cover}
.hero-copy{max-width:790px}
.hero-copy h1{margin:16px 0 18px}
.hero-copy p{max-width:760px;color:var(--muted);margin-bottom:25px}
.badges,.tag-row{display:flex;flex-wrap:wrap;gap:9px}
.data-badge,.soft-tag{display:inline-flex;align-items:center;gap:7px;padding:7px 11px;border-radius:999px;font-size:13px;font-weight:700}
.data-badge{background:#fff;border:1px solid var(--line);color:var(--ink)}
.data-badge i{color:var(--amber)}
.soft-tag{background:var(--mist);color:var(--ink)}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:18px}
.breadcrumb a:hover{color:var(--teal)}
.section-head{max-width:760px;margin-bottom:36px}
.index-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;box-shadow:var(--shadow)}
.index-list{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.index-list a{display:flex;align-items:center;gap:12px;min-height:58px;padding:12px 15px;border:1px solid var(--line);border-radius:13px;color:var(--ink);font-weight:700}
.index-list a:hover,.index-list a.active{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-2px)}
.index-list b{font-size:13px;color:var(--amber)}
.content-list{display:grid;gap:16px}
.resource-row{display:grid;grid-template-columns:190px 1fr auto;gap:24px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;transition:var(--ease)}
.resource-row:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--mint)}
.resource-row img{width:190px;height:130px;object-fit:cover;border-radius:13px}
.resource-row h3{margin:8px 0 7px;font-size:21px}
.resource-row p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
.resource-meta{font-size:13px;color:var(--teal);font-weight:800}
.arrow-link{white-space:nowrap;color:var(--teal);font-weight:800}
.arrow-link i{margin-left:7px;transition:var(--ease)}
.arrow-link:hover{color:var(--amber)}
.arrow-link:hover i{transform:translateX(4px)}
.param-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:24px;align-items:stretch}
.metric-box{background:var(--ink);color:#fff;border-radius:var(--radius);padding:30px}
.metric-box h3{color:#fff;margin-bottom:16px}
.metric-box p{color:#cfe2da;font-size:15px}
.metric-number{font-size:43px;color:var(--mint);font-weight:800;line-height:1}
.param-table{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.param-row{display:grid;grid-template-columns:170px 1fr;border-bottom:1px solid var(--line);padding:18px 22px;gap:20px}
.param-row:last-child{border-bottom:0}
.param-row strong{color:var(--ink)}
.param-row span{color:var(--muted)}
.process{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
.process:before{content:"";position:absolute;top:22px;left:8%;right:8%;height:2px;background:var(--line)}
.step{position:relative;text-align:center;padding:0 13px}
.step-num{width:45px;height:45px;display:grid;place-items:center;margin:0 auto 17px;border-radius:50%;background:var(--ink);color:var(--mint);font-weight:800;border:5px solid var(--paper);box-shadow:0 0 0 1px var(--mint)}
.step h3{font-size:17px;margin-bottom:8px}
.step p{color:var(--muted);font-size:13px;line-height:1.7}
.scene-wide{display:grid;grid-template-columns:1.12fr .88fr;gap:28px;align-items:stretch}
.scene-wide img{width:100%;height:330px;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow)}
.scene-note{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.scene-note ul{padding:0;margin:20px 0 0;list-style:none}
.scene-note li{padding:10px 0;border-bottom:1px solid var(--line);color:var(--muted)}
.scene-note li i{color:var(--teal);margin-right:9px}
.faq-wrap{max-width:900px}
.accordion-item{border:1px solid var(--line)!important;border-radius:13px!important;overflow:hidden;margin-bottom:10px;background:#fff}
.accordion-button{min-height:54px;background:#fff;color:var(--ink);font-weight:800;box-shadow:none!important}
.accordion-button:not(.collapsed){background:var(--mist);color:var(--ink)}
.accordion-body{color:var(--muted);font-size:15px;padding:17px 20px}
.contact-strip{background:var(--ink);color:#fff;border-radius:var(--radius);padding:34px}
.contact-strip h2{color:#fff;font-size:29px}
.contact-strip p{color:#cfe2da;margin:0}
.form-label{font-size:13px;color:#d7e7df;margin-bottom:5px}
.form-control,.form-select{min-height:46px;border-radius:10px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.1);color:#fff}
.form-control::placeholder{color:#b8cec5}
.form-select option{color:var(--text)}
.form-control:focus,.form-select:focus{background:rgba(255,255,255,.14);border-color:var(--mint);box-shadow:0 0 0 3px rgba(134,203,180,.18);color:#fff}
.form-note{font-size:12px;color:#b8cec5}
.site-footer{background:var(--ink-2);color:#cfe2da;padding:68px 0 28px}
.footer-brand{color:#fff;font-size:22px;font-weight:800;margin-bottom:14px}
.footer-contact{font-size:14px;line-height:2.1;color:#b8cec5}
.footer-contact i{color:var(--mint);width:21px}
.footer-title{color:#fff;font-weight:800;margin-bottom:16px}
.footer-links{display:grid;gap:8px;font-size:14px;color:#b8cec5}
.footer-links a:hover{color:var(--mint);padding-left:3px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:22px;font-size:13px;color:#9eb7ae}
.fixed-bar{position:fixed;right:22px;bottom:22px;z-index:1020;display:flex;align-items:center;gap:13px;padding:10px 12px 10px 18px;border-radius:999px;background:#fff;box-shadow:0 10px 30px rgba(19,42,41,.2);border:1px solid var(--line);font-size:14px;font-weight:700;color:var(--ink)}
.fixed-bar a{color:var(--teal)}
@media(max-width:992px){.main-nav,.nav-cta{display:none}.nav-toggler{display:block;margin-left:auto}.index-list{grid-template-columns:repeat(2,1fr)}.param-wrap,.scene-wide{grid-template-columns:1fr}.process{grid-template-columns:repeat(3,1fr);gap:25px}.process:before{display:none}}
@media(max-width:768px){.section{padding:64px 0}.topbar .inner{min-height:42px}.topbar .inner span:last-child{display:none}.nav-wrap{min-height:67px}.hero-inner{padding:53px 0}.resource-row{grid-template-columns:110px 1fr;gap:15px}.resource-row img{width:110px;height:100px}.resource-row .arrow-link{grid-column:2}.resource-row h3{font-size:18px}.process{grid-template-columns:1fr 1fr}.fixed-bar{right:10px;left:10px;bottom:10px;justify-content:space-between}.contact-strip{padding:25px 20px}}
@media(max-width:520px){h1{font-size:36px}.index-list{grid-template-columns:1fr}.resource-row{grid-template-columns:1fr}.resource-row img{width:100%;height:170px}.resource-row .arrow-link{grid-column:auto}.param-row{grid-template-columns:1fr;gap:4px;padding:15px 17px}.process{grid-template-columns:1fr;text-align:left}.step{text-align:left;padding:0 0 20px 68px}.step-num{position:absolute;left:0;top:0;margin:0}.fixed-bar{font-size:13px}.fixed-bar .btn-main{min-height:42px;padding:0 13px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category3 */
:root{--ink:#173c3b;--ink-2:#132a29;--teal:#257a70;--mint:#86cbb4;--amber:#d77a42;--paper:#f7f7f2;--mist:#edf4f0;--stone:#e7e9e5;--text:#203331;--muted:#61716d;--line:#d5e1db;--white:#fff;--radius:22px;--radius-sm:14px;--shadow:0 16px 38px rgba(23,60,59,.10);--shadow-hover:0 22px 45px rgba(23,60,59,.16);--ease:all .2s ease}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{margin:0;background:var(--paper);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:16px;line-height:1.8;overflow-x:hidden}
a{color:inherit;text-decoration:none;transition:var(--ease)}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(215,122,66,.48);outline-offset:3px}
.container{max-width:1240px}
.topbar{background:var(--ink-2);color:#d7e7df;font-size:13px}
.topbar .inner{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.topbar i{color:var(--mint);margin-right:6px}
.site-header{position:sticky;top:0;z-index:1030;background:rgba(247,247,242,.97);border-bottom:1px solid rgba(23,60,59,.08);transition:var(--ease)}
.site-header.scrolled{box-shadow:0 8px 24px rgba(23,60,59,.1);background:rgba(255,255,255,.98)}
.nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:20px;font-weight:800;color:var(--ink);letter-spacing:.02em}
.brand-mark{width:35px;height:35px;border-radius:11px;background:linear-gradient(135deg,var(--ink),var(--teal),var(--mint));display:grid;place-items:center;color:#fff;font-size:16px}
.main-nav{display:flex;align-items:center;gap:3px;margin-left:auto}
.main-nav a{padding:12px 13px;border-radius:10px;color:#3a514d;font-size:15px;font-weight:600}
.main-nav a:hover,.main-nav a.active{background:var(--mist);color:var(--ink)}
.nav-cta,.btn-main{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 19px;border:0;border-radius:13px;background:linear-gradient(110deg,var(--ink),var(--teal));color:#fff!important;font-weight:700;box-shadow:0 8px 18px rgba(23,60,59,.18)}
.nav-cta:hover,.btn-main:hover{transform:translateY(-2px);background:linear-gradient(110deg,#1d514e,#319184);box-shadow:0 12px 24px rgba(23,60,59,.23)}
.nav-toggler{display:none;width:46px;height:46px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}
.offcanvas{background:var(--paper)}
.offcanvas-header{border-bottom:1px solid var(--line)}
.mobile-nav a{display:flex;align-items:center;min-height:48px;padding:10px 4px;border-bottom:1px solid var(--line);font-weight:700;color:var(--ink)}
.section{position:relative;padding:88px 0}
.section-soft{background:var(--mist)}
.eyebrow{display:inline-flex;align-items:center;gap:7px;color:var(--teal);font-size:13px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:22px;height:2px;background:var(--amber)}
.section-head{max-width:770px;margin-bottom:38px}
.section-head h2{margin:12px 0 12px;color:var(--ink-2);font-size:clamp(28px,3vw,38px);line-height:1.25;font-weight:800}
.lead{color:var(--muted);font-size:17px;line-height:1.9}
.page-hero{padding:72px 0 78px;background:linear-gradient(120deg,rgba(237,244,240,.97),rgba(247,247,242,.94)),url('/assets/images/backpic/back-4.webp') center/cover;overflow:hidden}
.page-hero:after{content:"";position:absolute;right:-120px;top:-130px;width:430px;height:430px;border:1px solid rgba(37,122,112,.16);border-radius:50%;box-shadow:0 0 0 28px rgba(37,122,112,.04),0 0 0 58px rgba(37,122,112,.03)}
.breadcrumb{margin-bottom:25px;color:var(--muted);font-size:14px}
.breadcrumb a:hover{color:var(--teal)}
.page-hero h1{position:relative;z-index:1;max-width:820px;margin:0 0 18px;color:var(--ink-2);font-size:clamp(34px,5vw,54px);line-height:1.18;font-weight:800}
.page-hero p{position:relative;z-index:1;max-width:820px;margin:0;color:#50625e;font-size:17px}
.hero-metrics{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.metric{padding:8px 13px;border:1px solid rgba(37,122,112,.2);border-radius:999px;background:rgba(255,255,255,.72);color:var(--ink);font-size:13px;font-weight:700}
.metric strong{margin-right:5px;color:var(--amber);font-size:17px}
.index-strip{display:flex;flex-wrap:wrap;gap:12px;align-items:center;padding:21px 25px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 8px 24px rgba(23,60,59,.05)}
.index-label{margin-right:8px;color:var(--ink);font-weight:800}
.index-strip a{padding:8px 14px;border-radius:10px;background:var(--mist);color:var(--muted);font-size:14px;font-weight:700}
.index-strip a:hover,.index-strip a.active{background:var(--ink);color:#fff}
.delivery-list{display:grid;grid-template-columns:repeat(2,1fr);gap:17px}
.delivery-item{display:grid;grid-template-columns:150px 1fr;gap:22px;min-height:190px;padding:18px;border:1px solid var(--line);border-radius:20px;background:#fff;transition:var(--ease)}
.delivery-item:hover{transform:translateY(-5px);border-color:var(--mint);box-shadow:var(--shadow-hover)}
.delivery-item img{width:150px;height:154px;object-fit:cover;border-radius:14px}
.delivery-item h3{margin:5px 0 9px;color:var(--ink);font-size:20px;line-height:1.4}
.delivery-item p{margin:10px 0 0;color:var(--muted);font-size:14px;line-height:1.7}
.tag-row{display:flex;flex-wrap:wrap;gap:7px}
.soft-tag{display:inline-flex;align-items:center;padding:5px 9px;border-radius:8px;background:var(--mist);color:var(--ink);font-size:12px;font-weight:700}
.list-more{margin-top:27px;text-align:center}
.btn-outline{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 19px;border:1px solid var(--teal);border-radius:13px;background:transparent;color:var(--ink);font-weight:700}
.btn-outline:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.parameter-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:stretch}
.parameter-note{padding:32px;border-radius:var(--radius);background:var(--ink);color:#e8f5ef}
.parameter-note h3{margin:0 0 14px;color:#fff;font-size:25px}
.parameter-note p{color:#bfd5cb;font-size:15px}
.parameter-note .stamp{display:inline-block;margin-top:17px;padding:7px 12px;border:1px solid rgba(134,203,180,.4);border-radius:9px;color:var(--mint);font-size:13px;font-weight:700}
.table-shell{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.parameter-table{width:100%;margin:0;border-collapse:collapse}
.parameter-table th,.parameter-table td{padding:17px 20px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.parameter-table th{width:28%;background:#f3f7f4;color:var(--ink);font-size:14px}
.parameter-table td{color:var(--muted);font-size:14px}
.parameter-table tr:last-child th,.parameter-table tr:last-child td{border-bottom:0}
.process-track{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
.process-track:before{content:"";position:absolute;top:22px;left:8%;right:8%;height:2px;background:var(--line)}
.process-step{position:relative;z-index:1;padding:0 13px;text-align:center}
.process-no{display:grid;place-items:center;width:45px;height:45px;margin:0 auto 17px;border:5px solid var(--paper);border-radius:50%;background:var(--teal);color:#fff;font-weight:800;box-shadow:0 0 0 1px var(--mint)}
.process-step:nth-child(odd) .process-no{background:var(--amber)}
.process-step h3{margin:0 0 8px;color:var(--ink);font-size:17px;line-height:1.45}
.process-step p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
.scene-panel{display:grid;grid-template-columns:1fr 1fr;gap:0;overflow:hidden;border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}
.scene-panel img{width:100%;height:355px;object-fit:cover}
.scene-copy{padding:38px}
.scene-copy h2{margin:10px 0 14px;color:var(--ink-2);font-size:30px;line-height:1.3}
.scene-copy p{color:var(--muted)}
.scene-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}
.scene-point{padding:12px;border-left:3px solid var(--mint);background:var(--mist);color:var(--ink);font-size:14px;font-weight:700}
.faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:46px}
.faq-intro h2{margin-top:12px;color:var(--ink-2);font-size:34px;line-height:1.3}
.accordion-item{margin-bottom:10px;border:1px solid var(--line)!important;border-radius:14px!important;overflow:hidden;background:#fff}
.accordion-button{min-height:58px;padding:16px 20px;background:#fff!important;color:var(--ink)!important;font-weight:800;box-shadow:none!important}
.accordion-button:not(.collapsed){background:var(--mist)!important;color:var(--ink)!important}
.accordion-button:after{filter:sepia(1) saturate(3)}
.accordion-body{padding:0 20px 19px;color:var(--muted);font-size:14px;line-height:1.8}
.contact-band{padding:36px 42px;border-radius:var(--radius);background:linear-gradient(120deg,var(--ink-2),var(--teal));color:#fff}
.contact-band h2{margin:0 0 10px;font-size:30px;line-height:1.35}
.contact-band p{margin:0;color:#d4ebe2;font-size:15px}
.contact-form{padding:24px;border-radius:18px;background:#fff;color:var(--text)}
.form-label{margin-bottom:5px;color:var(--ink);font-size:13px;font-weight:800}
.form-control,.form-select{min-height:45px;border:1px solid var(--line);border-radius:10px;background:#fbfdfb}
.form-control:focus,.form-select:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(37,122,112,.13)}
.privacy{margin:13px 0 0;color:var(--muted);font-size:12px;line-height:1.6}
.form-feedback{display:none;margin-top:10px;padding:9px 12px;border-radius:9px;background:#e8f5ef;color:var(--ink);font-size:13px}
.site-footer{padding:62px 0 22px;background:var(--ink-2);color:#d7e7df}
.footer-brand{margin-bottom:14px;color:#fff;font-size:23px;font-weight:800}
.footer-contact{color:#a9c1b8;font-size:14px;line-height:2}
.footer-contact i{width:21px;color:var(--mint)}
.footer-title{margin-bottom:15px;color:#fff;font-weight:800}
.footer-links{display:grid;gap:9px}
.footer-links a{color:#a9c1b8;font-size:14px}
.footer-links a:hover{color:var(--mint);padding-left:4px}
.footer-bottom{margin-top:38px;padding-top:20px;border-top:1px solid rgba(215,231,223,.14);color:#91aaa1;font-size:12px}
.fixed-contact{position:fixed;right:22px;bottom:22px;z-index:1020;display:flex;align-items:center;gap:12px;padding:10px 12px 10px 16px;border:1px solid rgba(134,203,180,.5);border-radius:16px;background:rgba(19,42,41,.96);color:#fff;box-shadow:0 14px 30px rgba(19,42,41,.25)}
.fixed-contact small{display:block;color:#b9d9cd;font-size:11px}
.fixed-contact strong{font-size:15px}
.fixed-contact a{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 13px;border-radius:10px;background:var(--amber);color:#fff;font-size:13px;font-weight:800}
.fixed-contact a:hover{background:#eb9a62}
@media(max-width:991.98px){.main-nav,.nav-cta{display:none}.nav-toggler{display:block;margin-left:auto}.parameter-wrap,.faq-grid{grid-template-columns:1fr}.delivery-list{grid-template-columns:1fr}.scene-panel{grid-template-columns:1fr}.scene-panel img{height:300px}.process-track{grid-template-columns:repeat(5,1fr)}}
@media(max-width:767.98px){.topbar .inner{min-height:32px;font-size:11px}.topbar .inner span:last-child{display:none}.nav-wrap{min-height:68px}.brand{font-size:17px}.brand-mark{width:32px;height:32px}.section{padding:65px 0}.page-hero{padding:50px 0 58px}.page-hero h1{font-size:36px}.page-hero p,.lead{font-size:15px}.index-strip{padding:18px;gap:8px}.index-label{width:100%;margin:0 0 3px}.process-track{display:block;padding-left:23px}.process-track:before{top:22px;bottom:22px;left:45px;width:2px;height:auto;right:auto}.process-step{display:grid;grid-template-columns:45px 1fr;gap:17px;padding:0 0 25px;text-align:left}.process-no{grid-row:span 2;margin:0}.process-step h3{padding-top:6px}.process-step p{grid-column:2}.contact-band{padding:27px 20px}.contact-band h2{font-size:25px}.fixed-contact{right:10px;bottom:10px;left:10px;justify-content:space-between}.fixed-contact a{min-width:100px}.delivery-item{grid-template-columns:105px 1fr;gap:14px;padding:13px}.delivery-item img{width:105px;height:135px}.delivery-item h3{font-size:17px}.scene-copy{padding:25px}.scene-copy h2{font-size:26px}.scene-points{grid-template-columns:1fr}}
@media(max-width:520px){.container{padding-left:18px;padding-right:18px}.hero-metrics{gap:7px}.metric{font-size:12px}.delivery-item{grid-template-columns:1fr}.delivery-item img{width:100%;height:175px}.parameter-table th,.parameter-table td{padding:13px 12px}.parameter-table th{width:33%}.footer-bottom{line-height:1.8}.fixed-contact small{font-size:10px}.fixed-contact strong{font-size:13px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: category4 */
:root{--ink:#173c3b;--ink-2:#132a29;--teal:#257a70;--mint:#86cbb4;--amber:#d77a42;--paper:#f7f7f2;--mist:#edf4f0;--stone:#e7e9e5;--text:#203331;--muted:#61716d;--line:#d5e1db;--white:#fff;--radius:22px;--radius-sm:14px;--shadow:0 16px 38px rgba(23,60,59,.1);--shadow-hover:0 22px 45px rgba(23,60,59,.16);--ease:all .2s ease}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:112px}body{margin:0;background:var(--paper);color:var(--text);font:16px/1.8 "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;overflow-x:hidden}a{text-decoration:none;color:inherit;transition:var(--ease)}img{display:block;max-width:100%}button,input,select,textarea{font:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(215,122,66,.48);outline-offset:3px}.container{max-width:1240px}.topbar{background:var(--ink-2);color:#d7e7df;font-size:13px}.topbar .inner{min-height:35px;display:flex;align-items:center;justify-content:space-between;gap:18px}.topbar i{color:var(--mint);margin-right:6px}.site-header{position:sticky;top:0;z-index:1030;background:rgba(247,247,242,.97);border-bottom:1px solid rgba(23,60,59,.08);transition:var(--ease)}.site-header.scrolled{box-shadow:0 8px 24px rgba(23,60,59,.1);background:#fff}.nav-wrap{min-height:76px;display:flex;align-items:center;gap:26px}.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:20px;font-weight:800;color:var(--ink)}.brand-mark{width:35px;height:35px;border-radius:11px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--ink),var(--teal),var(--mint))}.main-nav{display:flex;align-items:center;gap:3px;margin-left:auto}.main-nav a{padding:12px 13px;border-radius:10px;color:#3a514d;font-size:15px;font-weight:600}.main-nav a:hover,.main-nav a.active{background:var(--mist);color:var(--ink)}.nav-cta,.btn-main{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 19px;border:0;border-radius:13px;background:linear-gradient(110deg,var(--ink),var(--teal));color:#fff!important;font-weight:700;box-shadow:0 8px 18px rgba(23,60,59,.18)}.nav-cta:hover,.btn-main:hover{transform:translateY(-2px);background:linear-gradient(110deg,#1d514e,#319184)}.nav-toggler{display:none;width:46px;height:46px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}.offcanvas{background:var(--paper)}.offcanvas-header{border-bottom:1px solid var(--line)}.mobile-nav a{display:flex;align-items:center;min-height:48px;padding:10px 4px;border-bottom:1px solid var(--line);font-weight:700;color:var(--ink)}
.section{padding:86px 0}.section-soft{background:var(--mist)}.eyebrow{display:inline-flex;align-items:center;gap:7px;color:var(--teal);font-size:13px;font-weight:800;letter-spacing:.08em}.eyebrow:before{content:"";width:22px;height:2px;background:var(--amber)}h1,h2,h3{color:var(--ink);font-weight:800;line-height:1.25}h1{font-size:clamp(34px,4.5vw,54px);margin:14px 0 18px}h2{font-size:clamp(28px,3vw,38px);margin:10px 0 14px}h3{font-size:20px;margin:0 0 10px}.lead{color:var(--muted);font-size:17px;line-height:1.9}.section-head{max-width:760px;margin-bottom:36px}.page-hero{position:relative;padding:78px 0 68px;background:linear-gradient(115deg,rgba(237,244,240,.98),rgba(247,247,242,.94)),url('/assets/images/backpic/back-6.webp') center/cover;overflow:hidden}.page-hero:after{content:"";position:absolute;right:7%;top:35px;width:210px;height:210px;border:1px solid rgba(37,122,112,.22);border-radius:28px;transform:rotate(18deg)}.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:26px}.breadcrumb a{color:var(--teal);font-weight:700}.hero-layout{position:relative;z-index:1;display:grid;grid-template-columns:1.35fr .65fr;gap:48px;align-items:center}.hero-tags,.tag-row{display:flex;flex-wrap:wrap;gap:9px}.data-badge,.soft-tag{display:inline-flex;align-items:center;gap:7px;padding:7px 11px;border-radius:999px;font-size:13px;font-weight:700}.data-badge{background:var(--ink);color:#effbf6}.data-badge i{color:var(--mint)}.soft-tag{background:var(--mist);color:var(--ink);border:1px solid var(--line)}.status-panel{padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}.status-panel h3{font-size:18px}.status-line{display:flex;align-items:center;gap:10px;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}.status-line:last-child{border:0}.status-dot{width:9px;height:9px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 5px rgba(134,203,180,.2)}.index-strip{display:flex;flex-wrap:wrap;gap:12px}.index-item{flex:1 1 190px;display:flex;align-items:center;gap:12px;min-height:64px;padding:12px 16px;border:1px solid var(--line);border-radius:16px;background:#fff;font-weight:700;color:var(--ink)}.index-item:hover{border-color:var(--mint);transform:translateY(-3px);box-shadow:var(--shadow)}.index-no{color:var(--amber);font-size:13px;font-weight:800}.resource-list{display:grid;gap:16px}.resource-item{display:grid;grid-template-columns:190px 1fr auto;gap:24px;align-items:center;padding:18px;border:1px solid var(--line);border-radius:18px;background:#fff;transition:var(--ease)}.resource-item:hover{transform:translateX(4px);border-color:var(--mint);box-shadow:var(--shadow-hover)}.resource-item img{width:190px;height:128px;object-fit:cover;border-radius:13px}.resource-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px;font-size:12px;color:var(--teal);font-weight:800}.resource-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}.more-link{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-size:14px;font-weight:800;white-space:nowrap}.more-link:hover{color:var(--amber)}.dimension-box{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#fff;box-shadow:0 8px 22px rgba(23,60,59,.05)}.dimension{padding:25px 22px;border-right:1px solid var(--line)}.dimension:last-child{border:0}.dimension strong{display:block;color:var(--ink);font-size:17px;margin-bottom:8px}.dimension span{display:block;color:var(--muted);font-size:14px;line-height:1.7}.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}.flow:before{content:"";position:absolute;top:21px;left:7%;right:7%;height:2px;background:var(--line)}.flow-step{position:relative;text-align:center;padding:0 10px}.flow-num{position:relative;z-index:1;width:44px;height:44px;margin:0 auto 16px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:#fff;font-weight:800;border:5px solid var(--paper)}.flow-step:nth-child(3) .flow-num{background:var(--amber)}.flow-step p{color:var(--muted);font-size:14px;line-height:1.65}.scene-panel{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:stretch}.scene-panel figure{margin:0;min-height:310px;overflow:hidden;border-radius:var(--radius);background:var(--ink)}.scene-panel img{width:100%;height:100%;object-fit:cover}.scene-copy{padding:30px;border-radius:var(--radius);background:var(--ink);color:#e3f0eb}.scene-copy h2,.scene-copy h3{color:#fff}.scene-copy p{color:#c5d9d1}.scene-list{margin:20px 0 0;padding:0;list-style:none}.scene-list li{padding:10px 0;border-bottom:1px solid rgba(255,255,255,.14);font-size:14px}.scene-list i{color:var(--mint);margin-right:9px}.accordion{--bs-accordion-bg:#fff;--bs-accordion-border-color:var(--line);--bs-accordion-btn-color:var(--ink);--bs-accordion-active-color:var(--ink);--bs-accordion-active-bg:var(--mist);--bs-accordion-btn-focus-box-shadow:0 0 0 .2rem rgba(134,203,180,.25)}.accordion-item{margin-bottom:10px;border:1px solid var(--line)!important;border-radius:14px!important;overflow:hidden}.accordion-button{min-height:54px;font-weight:700}.accordion-body{color:var(--muted);font-size:15px}.contact-band{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center;padding:34px;border-radius:var(--radius);background:linear-gradient(110deg,var(--ink),var(--teal));color:#fff}.contact-band h2{color:#fff;font-size:30px}.contact-band p{color:#d9eee6}.compact-form{display:grid;grid-template-columns:1fr 1fr;gap:12px}.compact-form .full{grid-column:1/-1}.form-control,.form-select{min-height:47px;border:1px solid rgba(213,225,219,.9);border-radius:11px;background:#fff}.form-label{margin-bottom:4px;font-size:13px;font-weight:700;color:#e4f2ec}.form-note{font-size:12px;color:#c5d9d1}.site-footer{padding:58px 0 92px;background:var(--ink-2);color:#c9ddd5}.footer-brand{font-size:22px;color:#fff;font-weight:800;margin-bottom:13px}.footer-contact{font-size:14px;line-height:2.1}.footer-contact i{width:20px;color:var(--mint)}.footer-title{margin-bottom:14px;color:#fff;font-weight:800}.footer-links{display:grid;gap:8px;font-size:14px}.footer-links a:hover{color:var(--mint);padding-left:3px}.footer-bottom{margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);font-size:13px;color:#9ebbb0}.fixed-bar{position:fixed;z-index:1025;right:24px;bottom:24px;display:flex;align-items:center;gap:14px;padding:10px 12px 10px 18px;border:1px solid rgba(134,203,180,.3);border-radius:15px;background:var(--ink-2);color:#fff;box-shadow:0 14px 35px rgba(19,42,41,.28);font-size:14px}.fixed-bar strong{color:var(--mint)}.fixed-bar a{min-height:40px;padding:7px 13px;border-radius:9px;background:var(--amber);font-weight:800}.fixed-bar a:hover{background:#e7a856}
@media(max-width:991px){.main-nav,.nav-cta{display:none}.nav-toggler{display:block;margin-left:auto}.hero-layout{grid-template-columns:1fr}.status-panel{max-width:520px}.dimension-box{grid-template-columns:repeat(2,1fr)}.dimension:nth-child(2){border-right:0}.dimension:nth-child(-n+2){border-bottom:1px solid var(--line)}.flow{grid-template-columns:repeat(3,1fr);row-gap:24px}.flow:before{display:none}.scene-panel,.contact-band{grid-template-columns:1fr}}
@media(max-width:767px){.topbar .inner{padding:7px 0;display:block;text-align:center;font-size:12px}.topbar .inner span:last-child{display:none}.nav-wrap{min-height:66px}.brand{font-size:17px}.brand-mark{width:32px;height:32px}.section{padding:62px 0}.page-hero{padding:52px 0 48px}.hero-layout{gap:28px}.resource-item{grid-template-columns:100px 1fr;gap:14px}.resource-item img{width:100px;height:100px}.resource-item .more-link{grid-column:2}.flow{grid-template-columns:1fr 1fr}.compact-form{grid-template-columns:1fr}.compact-form .full{grid-column:auto}.fixed-bar{right:10px;left:10px;bottom:10px;justify-content:space-between}.fixed-bar span{font-size:13px}.site-footer{padding-bottom:105px}}
@media(max-width:520px){h1{font-size:35px}.lead{font-size:15px}.dimension-box{grid-template-columns:1fr}.dimension{border-right:0!important;border-bottom:1px solid var(--line)}.dimension:last-child{border-bottom:0}.resource-item{grid-template-columns:1fr}.resource-item img{width:100%;height:170px}.resource-item .more-link{grid-column:auto}.flow{grid-template-columns:1fr}.flow-step{text-align:left;display:grid;grid-template-columns:46px 1fr;column-gap:12px}.flow-num{margin:0}.flow-step h3{padding-top:8px}.flow-step p{grid-column:2}.fixed-bar strong{display:none}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}