/* roulang page: index */
:root{--blue:#28658d;--blue-dark:#174965;--blue-soft:#eaf3f8;--mint:#159c92;--ink:#1d2b34;--muted:#64747d;--line:#dbe5e9;--paper:#fffefd;--mist:#f5f8f9;--graphite:#233640;--radius:16px;--shadow:0 12px 32px rgba(28,61,79,.09);--shadow-lg:0 22px 48px rgba(19,48,65,.16);--max:1240px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.75;font-size:15px;padding-bottom:82px}a{color:inherit;text-decoration:none;transition:.22s ease}img{display:block;width:100%;height:auto}button,input,textarea{font:inherit}button{cursor:pointer}::selection{background:#cbe4ef;color:var(--ink)}:focus-visible{outline:3px solid #41a6b5;outline-offset:3px}
.grid-container{max-width:var(--max);padding-left:24px;padding-right:24px}.topbar{background:#edf5f7;border-bottom:1px solid #d9e8eb;color:#4a626d;font-size:12px}.topbar .grid-container{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:18px}.trust{display:flex;align-items:center;gap:9px}.status-dot{width:7px;height:7px;background:var(--mint);border-radius:50%;box-shadow:0 0 0 4px rgba(21,156,146,.12)}.top-contact{white-space:nowrap}.site-header{background:rgba(255,254,253,.96);border-bottom:1px solid rgba(214,226,230,.8);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:19px;font-weight:800;color:var(--blue-dark);letter-spacing:-.5px}.brand-mark{width:33px;height:33px;border:2px solid var(--blue);border-radius:10px;position:relative;background:#f0f8fa}.brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:99px;background:var(--mint)}.brand-mark:before{width:15px;height:2px;left:7px;top:10px;box-shadow:4px 7px 0 var(--blue)}.brand-mark:after{width:5px;height:5px;right:5px;bottom:5px}.main-menu{margin:0;display:flex;align-items:center;gap:4px;background:none}.main-menu a{display:block;padding:10px 12px;border-radius:8px;color:#42545d;font-size:14px;font-weight:600}.main-menu a:hover,.main-menu .active a{color:var(--blue-dark);background:var(--blue-soft)}.nav-cta,.button-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;background:var(--blue);color:#fff;font-weight:700;border:1px solid var(--blue);box-shadow:0 7px 16px rgba(40,101,141,.18)}.nav-cta:hover,.button-primary:hover{background:var(--blue-dark);color:#fff;transform:translateY(-2px)}.button-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;background:#fff;color:var(--blue-dark);font-weight:700;border:1px solid #b9ced9}.button-secondary:hover{background:var(--blue-soft);border-color:var(--blue);transform:translateY(-2px)}.menu-toggle{display:none;border:0;background:transparent;font-size:23px;color:var(--blue-dark);min-width:44px;min-height:44px}
section{scroll-margin-top:108px}.section{padding:100px 0}.section-soft{background:var(--mist)}.eyebrow{display:inline-flex;gap:7px;align-items:center;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.eyebrow:before{content:"";width:22px;height:2px;background:var(--mint)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(32px,4.1vw,56px);line-height:1.22;letter-spacing:-1.8px}h2{font-size:clamp(25px,3vw,38px);line-height:1.35;letter-spacing:-.9px;margin:10px 0 15px}h3{font-size:18px;line-height:1.45;margin-bottom:8px}.section-intro{max-width:700px;color:var(--muted);font-size:16px;margin-bottom:38px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px}.section-head .section-intro{margin-bottom:35px}
.hero{padding:34px 0 76px;background:linear-gradient(180deg,#f7fbfc 0%,#eef5f7 100%);overflow:hidden}.hero-shell{position:relative;border:1px solid #d8e5e9;border-radius:24px;overflow:hidden;min-height:570px;background:#dfecef;box-shadow:var(--shadow-lg)}.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.48}.hero-bg:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(246,251,252,.98) 0%,rgba(246,251,252,.88) 43%,rgba(238,247,248,.22) 100%)}.hero-content{position:relative;z-index:2;padding:65px 5.5%;max-width:740px}.hero-content h1{max-width:680px;margin:14px 0 18px;color:#183243}.hero-text{font-size:16px;color:#4f626c;max-width:680px;margin-bottom:25px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.hero-points{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}.hero-points span,.badge{border:1px solid #c9dce3;background:rgba(255,255,255,.79);color:#38525e;border-radius:99px;padding:6px 10px;font-size:12px;font-weight:700}.before-after{position:absolute;z-index:3;right:4.5%;bottom:42px;display:flex;gap:12px;align-items:stretch;width:410px}.compare-mini{background:rgba(255,255,255,.94);border:1px solid #d9e6e9;border-radius:14px;padding:16px;box-shadow:var(--shadow);flex:1}.compare-mini.after{background:var(--graphite);color:#fff;border-color:var(--graphite)}.compare-label{font-size:11px;font-weight:800;letter-spacing:.08em;color:var(--muted)}.after .compare-label{color:#94cfc8}.compare-mini strong{font-size:16px;line-height:1.35;display:block;margin:5px 0}.compare-mini p{font-size:12px;line-height:1.55;margin:0;color:#64747d}.after p{color:#c5d2d6}.orbit{background:transparent}.orbit-container{min-height:auto!important;background:transparent}.orbit-slide{min-height:570px}.orbit-bullets{position:absolute;left:5.5%;bottom:24px;z-index:5;margin:0}.orbit-bullets button{width:9px;height:9px;background:#aebfc6}.orbit-bullets button.is-active{background:var(--blue)}
.quick-search{padding:0;position:relative;z-index:4;margin-top:-30px}.search-panel{padding:18px 22px;background:#fff;border:1px solid #dce7ea;border-radius:16px;box-shadow:var(--shadow);display:flex;align-items:center;gap:16px}.search-panel strong{white-space:nowrap;color:var(--blue-dark)}.search-links{display:flex;flex-wrap:wrap;gap:8px}.search-links a{padding:6px 11px;background:var(--mist);border-radius:7px;color:#536870;font-size:13px}.search-links a:hover{background:var(--blue-soft);color:var(--blue)}
.category-grid{display:grid;grid-template-columns:1.2fr repeat(4,1fr);gap:12px}.category-card{min-height:143px;padding:20px;border:1px solid var(--line);border-radius:14px;background:#fff;position:relative;overflow:hidden}.category-card:first-child{background:var(--blue);color:#fff}.category-card:first-child p{color:#dceef4}.category-card i{color:var(--mint);font-size:19px;margin-bottom:17px}.category-card:first-child i{color:#a6e7df}.category-card h3{font-size:15px;margin-bottom:3px}.category-card p{font-size:12px;line-height:1.6;color:var(--muted);margin:0}.category-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b8d1db}
.product-feature{display:grid;grid-template-columns:1.05fr .95fr;background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}.product-copy{padding:48px}.product-copy p{color:var(--muted)}.check-list{list-style:none;padding:0;margin:22px 0}.check-list li{padding:8px 0;border-bottom:1px solid #edf1f2;color:#435861}.check-list i{color:var(--mint);margin-right:9px}.feature-image{min-height:400px;position:relative;background:#dbe8eb}.feature-image img{height:100%;object-fit:cover}.metric-float{position:absolute;bottom:24px;left:24px;background:#fff;padding:14px 16px;border-radius:12px;box-shadow:var(--shadow);font-size:12px}.metric-float b{display:block;color:var(--blue);font-size:23px;line-height:1.15}
.advantage-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.adv-card{padding:25px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 7px 18px rgba(34,66,80,.045);transition:.22s}.adv-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#b5d3dd}.adv-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;background:var(--blue-soft);color:var(--blue);margin-bottom:18px;font-size:19px}.adv-card:nth-child(2) .adv-icon,.adv-card:nth-child(5) .adv-icon{background:#e7f7f4;color:var(--mint)}.adv-card p{font-size:13px;color:var(--muted);margin:0}.micro{font-size:12px;color:var(--mint);font-weight:800;margin-top:13px}
.product-cards{display:grid;grid-template-columns:1.15fr .9fr .9fr;gap:18px}.product-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 7px 18px rgba(34,66,80,.045);display:flex;flex-direction:column}.product-card img{height:185px;object-fit:cover}.product-body{padding:22px;flex:1}.product-body p{font-size:13px;color:var(--muted)}.tag-row{display:flex;gap:6px;flex-wrap:wrap;margin:14px 0}.tag-row span{font-size:11px;padding:4px 7px;border-radius:5px;background:var(--blue-soft);color:var(--blue-dark);font-weight:700}.text-link{font-size:14px;color:var(--blue);font-weight:800;display:inline-flex;align-items:center;gap:7px}.text-link:hover{color:var(--mint);gap:10px}
.scene-tabs{display:grid;grid-template-columns:255px 1fr;border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#fff;box-shadow:var(--shadow)}.scene-nav{padding:18px;background:#eff5f6}.scene-nav button{width:100%;text-align:left;background:transparent;border:0;border-radius:9px;padding:14px 13px;color:#53656d;font-weight:700;margin-bottom:3px}.scene-nav button.is-active,.scene-nav button:hover{background:#fff;color:var(--blue);box-shadow:0 3px 10px rgba(29,65,81,.08)}.scene-panel{padding:34px;display:grid;grid-template-columns:1fr .95fr;gap:30px;align-items:center}.scene-panel p{color:var(--muted)}.scene-details{list-style:none;margin:20px 0 0;padding:0}.scene-details li{font-size:13px;padding:8px 0;border-bottom:1px solid #edf1f2}.scene-details b{color:var(--blue-dark);margin-right:8px}.scene-visual{position:relative;min-height:280px;border-radius:15px;overflow:hidden}.scene-visual img{height:280px;object-fit:cover}.route-line{position:absolute;inset:22%;border:2px dashed #70d1c9;border-radius:50% 40% 50% 35%;transform:rotate(-18deg)}
.dark-case{background:var(--graphite);color:#fff;position:relative;overflow:hidden}.dark-case:before{content:"";position:absolute;width:700px;height:700px;right:-180px;top:-420px;border:1px solid rgba(140,220,217,.2);border-radius:50%;box-shadow:0 0 0 55px rgba(140,220,217,.035),0 0 0 110px rgba(140,220,217,.03)}.dark-case .section-intro{color:#b8c8cd}.case-grid{position:relative;display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:center}.case-number{font-size:clamp(70px,11vw,140px);font-weight:800;line-height:.85;color:#8edbd2;letter-spacing:-6px}.case-number small{font-size:18px;letter-spacing:0;color:#b9d0d1}.steps{border-left:1px solid rgba(174,220,217,.36);padding-left:24px}.steps div{margin-bottom:22px}.steps span{color:#8edbd2;font-size:12px;font-weight:800}.steps h3{margin:3px 0;color:#fff}.steps p{margin:0;color:#b8c8cd;font-size:13px}
.story-list{display:grid;gap:0}.story{display:grid;grid-template-columns:160px 1fr 250px;gap:28px;align-items:center;padding:25px 0;border-bottom:1px solid var(--line)}.story:last-child{border-bottom:0}.story-role{font-weight:800;color:var(--blue-dark);font-size:16px}.story-role span{display:block;font-size:11px;color:var(--mint);letter-spacing:.06em;margin-bottom:4px}.story p{margin:0;color:var(--muted)}.story-meta{font-size:12px;color:#4e646d;padding:12px;background:var(--mist);border-radius:9px}
.stats{background:#eaf4f6;padding:30px 0}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.stat{padding:10px 22px;border-right:1px solid #c7dce1}.stat:last-child{border-right:0}.stat b{display:block;color:var(--blue);font-size:31px;line-height:1.2}.stat span{font-size:12px;color:#586b73}
.review-layout{display:grid;grid-template-columns:1.2fr .8fr .95fr;gap:16px}.review{padding:25px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 7px 18px rgba(34,66,80,.04)}.review:nth-child(2){margin-top:32px;background:#f0f8f8}.review q{display:block;font-size:16px;line-height:1.8;color:#334750;margin-bottom:18px}.review q:before,.review q:after{color:var(--mint);font-size:23px}.review small{color:var(--muted)}.review b{color:var(--blue-dark)}
.compare-wrap{border:1px solid var(--line);border-radius:18px;overflow:auto;background:#fff;box-shadow:var(--shadow)}.compare-table{width:100%;border-collapse:collapse;min-width:760px}.compare-table th,.compare-table td{padding:17px 20px;text-align:left;border-bottom:1px solid #e6edef;font-size:14px}.compare-table th{background:#f3f8f9;color:#52666e;font-weight:700}.compare-table th:last-child,.compare-table td:last-child{background:#edf7f6;color:#1c605d;font-weight:800}.yes{color:var(--mint);font-weight:800}.limited{color:#84949a}
.news-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}.news-list{border-top:1px solid var(--line)}.news-item{display:grid;grid-template-columns:110px 1fr auto;gap:18px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}.news-date{font-size:12px;color:var(--mint);font-weight:800}.news-item h3{font-size:16px;margin:0}.news-item p{font-size:13px;color:var(--muted);margin:3px 0 0}.news-aside{background:var(--blue);color:#fff;border-radius:18px;padding:30px;position:relative;overflow:hidden}.news-aside:after{content:"";position:absolute;width:170px;height:170px;border:1px solid rgba(255,255,255,.2);border-radius:50%;right:-65px;bottom:-65px}.news-aside p{color:#d6e9ee}.news-aside .badge{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.25);color:#fff}
.faq-section{background:var(--mist)}.accordion{background:transparent;margin:0}.accordion-item{margin-bottom:10px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}.accordion-title{border:0!important;color:var(--blue-dark)!important;font-weight:800;padding:17px 48px 17px 20px;font-size:15px}.accordion-title:hover,.accordion-title:focus{background:var(--blue-soft)}.accordion-content{border:0!important;color:#596b73;padding:0 20px 18px;font-size:14px;line-height:1.8}.accordion-title:before{color:var(--mint);font-size:20px}
.delivery{padding:72px 0;background:#fff}.delivery-line{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:16px;overflow:hidden}.delivery-item{padding:23px;border-right:1px solid var(--line);position:relative;background:#fff}.delivery-item:last-child{border-right:0}.delivery-item span{display:block;color:var(--mint);font-size:12px;font-weight:800}.delivery-item h3{font-size:16px;margin:5px 0}.delivery-item p{font-size:12px;color:var(--muted);margin:0}
.final-cta{padding:110px 0;background:#f2f8f8}.cta-box{padding:55px;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;border:1px solid #cfe1e4;border-radius:22px;background:#fff;box-shadow:var(--shadow)}.cta-box p{color:var(--muted);max-width:720px;margin-bottom:0}.cta-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}.privacy{font-size:12px;color:#74868d;margin-top:14px}
.footer{background:#1d3039;color:#d2dde0;padding:56px 0 24px}.footer-grid{display:grid;grid-template-columns:1.3fr .8fr .9fr;gap:36px}.footer .brand{color:#fff}.footer p{font-size:13px;color:#aebfc5}.footer h3{font-size:14px;color:#fff;margin-bottom:12px}.footer a{font-size:13px;color:#b8c8cd;display:block;margin-bottom:7px}.footer a:hover{color:#8edbd2}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:35px;padding-top:17px;display:flex;justify-content:space-between;gap:15px;font-size:12px;color:#9fb1b8}.fixed-bar{position:fixed;bottom:0;left:0;right:0;z-index:30;background:rgba(27,49,59,.96);color:#fff;border-top:1px solid rgba(255,255,255,.12);box-shadow:0 -8px 25px rgba(19,35,43,.15);padding:10px 0 env(safe-area-inset-bottom)}.fixed-inner{max-width:var(--max);padding:0 24px;min-height:58px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:18px}.fixed-inner strong{font-size:14px}.fixed-inner span{font-size:12px;color:#bdd0d5;margin-left:9px}.fixed-actions{display:flex;gap:8px}.fixed-actions a{min-height:38px;padding:0 13px;border-radius:8px;display:inline-flex;align-items:center;font-size:13px;font-weight:700}.fixed-phone{color:#fff;border:1px solid rgba(255,255,255,.35)}.fixed-demo{background:#8edbd2;color:#17343d}.fixed-close{background:transparent;border:0;color:#bcd1d6;font-size:18px;min-width:34px;min-height:34px}
@media(max-width:1050px){.main-menu a{padding:10px 7px;font-size:13px}.before-after{width:350px}.category-grid{grid-template-columns:repeat(3,1fr)}.category-card:first-child{grid-column:span 2}.story{grid-template-columns:135px 1fr}.story-meta{grid-column:2}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:820px){body{padding-bottom:94px}.nav-wrap{height:65px}.main-menu{display:none;position:absolute;top:65px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow);padding:12px 20px;flex-direction:column;align-items:stretch}.main-menu.open{display:flex}.main-menu a{padding:12px}.menu-toggle{display:block}.nav-cta{display:none}.hero{padding-top:20px}.hero-shell,.orbit-slide{min-height:650px}.hero-content{padding:45px 7%;max-width:100%}.before-after{right:7%;bottom:58px;width:86%}.section{padding:72px 0}.product-feature,.scene-panel,.case-grid,.news-grid,.cta-box{grid-template-columns:1fr}.feature-image{min-height:300px;order:-1}.advantage-grid{grid-template-columns:repeat(2,1fr)}.product-cards{grid-template-columns:1fr 1fr}.product-card:first-child{grid-column:span 2}.scene-tabs{grid-template-columns:1fr}.scene-nav{display:flex;overflow:auto;padding:10px}.scene-nav button{white-space:nowrap;width:auto;margin:0}.scene-panel{padding:25px}.review-layout{grid-template-columns:1fr 1fr}.review:nth-child(2){margin-top:0}.review:first-child{grid-column:span 2}.delivery-line{grid-template-columns:1fr 1fr}.delivery-item:nth-child(2){border-right:0}.delivery-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.cta-actions{justify-content:flex-start}.footer-grid{grid-template-columns:1fr 1fr}.fixed-inner{padding:0 14px}.fixed-inner span{display:none}}
@media(max-width:520px){.grid-container{padding-left:18px;padding-right:18px}.topbar .grid-container{justify-content:center;min-height:33px}.top-contact{display:none}.brand{font-size:17px}.hero-shell,.orbit-slide{min-height:690px;border-radius:17px}.hero-content{padding:36px 22px}.hero-text{font-size:14px;line-height:1.75}.hero-actions .button-primary,.hero-actions .button-secondary{width:100%}.before-after{bottom:53px;left:20px;right:20px;width:auto;gap:8px}.compare-mini{padding:12px}.compare-mini strong{font-size:13px}.compare-mini p{font-size:11px}.quick-search{margin-top:-18px}.search-panel{margin:0 18px;display:block;padding:15px}.search-panel strong{display:block;margin-bottom:8px}.category-grid{grid-template-columns:1fr 1fr}.category-card:first-child{grid-column:span 2}.category-card{min-height:125px;padding:16px}.section{padding:56px 0}.section-intro{font-size:14px}.section-head{display:block}.product-copy{padding:27px 22px}.advantage-grid,.product-cards,.review-layout,.stats-grid{grid-template-columns:1fr}.product-card:first-child,.review:first-child{grid-column:auto}.product-card img{height:165px}.story{grid-template-columns:1fr;gap:9px;padding:20px 0}.story-meta{grid-column:auto}.stat{border-right:0;border-bottom:1px solid #c7dce1;padding:14px 0}.stat:last-child{border-bottom:0}.case-grid{gap:35px}.news-item{grid-template-columns:1fr;gap:6px}.news-item .text-link{margin-top:3px}.delivery-line{grid-template-columns:1fr}.delivery-item,.delivery-item:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}.delivery-item:last-child{border-bottom:0}.cta-box{padding:30px 22px}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}.fixed-inner{gap:7px}.fixed-inner strong{font-size:12px;line-height:1.35;max-width:95px}.fixed-actions{gap:5px}.fixed-actions a{padding:0 8px;font-size:12px;min-height:40px}.fixed-close{position:absolute;right:2px;top:-29px;background:var(--graphite);border-radius:7px}}

/* roulang page: category1 */
:root{--blue:#28658d;--blue-dark:#174965;--blue-soft:#eaf3f8;--mint:#159c92;--ink:#1d2b34;--muted:#64747d;--line:#dbe5e9;--paper:#fffefd;--mist:#f5f8f9;--graphite:#233640;--radius:16px;--shadow:0 12px 32px rgba(28,61,79,.09);--shadow-lg:0 22px 48px rgba(19,48,65,.16);--max:1240px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:15px;line-height:1.75;padding-bottom:82px}a{color:inherit;text-decoration:none;transition:.22s ease}img{display:block;width:100%;height:auto}button,input,textarea{font:inherit}button{cursor:pointer}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(32px,4vw,52px);line-height:1.23;letter-spacing:-1.4px}h2{font-size:clamp(26px,3vw,38px);line-height:1.32;letter-spacing:-.7px;margin-bottom:14px}h3{font-size:18px;line-height:1.45;margin-bottom:9px}.grid-container{max-width:var(--max);padding-left:24px;padding-right:24px}.topbar{background:#edf5f7;border-bottom:1px solid #d9e8eb;color:#4a626d;font-size:12px}.topbar .grid-container{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:18px}.top-trust{display:flex;align-items:center;gap:7px}.top-trust i{color:var(--mint)}.site-header{background:rgba(255,254,253,.96);border-bottom:1px solid rgba(214,226,230,.8);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:19px;font-weight:800;color:var(--blue-dark);letter-spacing:-.5px}.brand-mark{width:33px;height:33px;border:2px solid var(--blue);border-radius:10px;position:relative;background:#f0f8fa}.brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:99px;background:var(--mint)}.brand-mark:before{width:15px;height:2px;left:7px;top:10px;box-shadow:4px 7px 0 var(--blue)}.brand-mark:after{width:5px;height:5px;right:5px;bottom:5px}.main-menu{margin:0;display:flex;align-items:center;gap:4px;background:none}.main-menu a{display:block;padding:10px 12px;border-radius:8px;color:#42545d;font-size:14px;font-weight:600}.main-menu a:hover,.main-menu .active a{color:var(--blue-dark);background:var(--blue-soft)}.nav-cta,.button-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;background:var(--blue);color:#fff;font-weight:700;border:1px solid var(--blue);box-shadow:0 7px 16px rgba(40,101,141,.18)}.nav-cta:hover,.button-primary:hover{background:var(--blue-dark);color:#fff;transform:translateY(-2px)}.button-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;background:#fff;color:var(--blue-dark);font-weight:700;border:1px solid #b9ced9}.button-secondary:hover{background:var(--blue-soft);border-color:var(--blue);transform:translateY(-2px)}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(21,156,146,.42);outline-offset:3px}.menu-toggle{display:none;border:0;background:transparent;font-size:23px;color:var(--blue-dark);min-width:44px;min-height:44px}.section{padding:96px 0;scroll-margin-top:104px}.section-soft{background:var(--mist)}.eyebrow{display:inline-flex;align-items:center;gap:7px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.08em}.eyebrow:before{content:"";width:22px;height:2px;background:var(--mint)}.section-intro{max-width:720px;color:var(--muted);font-size:16px;margin-bottom:34px}.page-head{padding:72px 0 70px;background:#f2f8fa;position:relative;overflow:hidden;border-bottom:1px solid #dce8eb}.page-head:after{content:"";position:absolute;width:460px;height:460px;right:-130px;top:-280px;border:1px solid #b9d9dc;border-radius:50%;box-shadow:0 0 0 46px rgba(185,217,220,.23),0 0 0 92px rgba(185,217,220,.14)}.crumb{position:relative;z-index:1;display:flex;align-items:center;gap:8px;font-size:13px;color:#657883;margin-bottom:19px}.crumb i{font-size:10px;color:#91a4ad}.page-head h1{position:relative;z-index:1;max-width:790px;margin-bottom:15px;color:#173749}.page-head p{position:relative;z-index:1;max-width:760px;margin:0;color:#536a75;font-size:17px}.category-map{display:grid;grid-template-columns:1.15fr repeat(4,1fr);gap:12px}.category-card{min-height:130px;padding:18px;border:1px solid var(--line);border-radius:14px;background:#fff}.category-card.active{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:var(--shadow)}.category-card i{display:block;color:var(--mint);font-size:18px;margin-bottom:13px}.category-card.active i,.category-card.active p{color:#caefea}.category-card h3{font-size:15px;margin-bottom:2px}.category-card p{margin:0;color:var(--muted);font-size:12px;line-height:1.6}.category-card:hover{transform:translateY(-4px);border-color:#b4d0da;box-shadow:var(--shadow)}.content-lead{display:grid;grid-template-columns:1.08fr .92fr;overflow:hidden;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:var(--shadow);margin-bottom:20px}.content-lead .cover{min-height:310px}.content-lead img{height:100%;object-fit:cover}.article-body{padding:33px}.article-meta{display:flex;gap:10px;align-items:center;flex-wrap:wrap;color:#687a83;font-size:12px;margin-bottom:11px}.article-meta span:first-child{color:var(--mint);font-weight:800}.article-body p{color:var(--muted);margin-bottom:18px}.more-link{display:inline-flex;align-items:center;gap:7px;color:var(--blue-dark);font-size:14px;font-weight:800}.more-link:hover{color:var(--mint);transform:translateX(3px)}.article-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.article-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;box-shadow:0 6px 18px rgba(34,66,80,.04);transition:.22s}.article-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#b9d4dd}.article-card .article-meta{margin-bottom:13px}.article-card p{color:var(--muted);font-size:14px;margin-bottom:17px}.topic-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}.filter-box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:0 6px 18px rgba(34,66,80,.04)}.filter-box h3{color:var(--blue-dark)}.tag-list{display:flex;flex-wrap:wrap;gap:10px}.tag{display:inline-flex;min-height:33px;align-items:center;padding:0 12px;border-radius:99px;border:1px solid #cbdde3;background:#fff;color:#526b76;font-size:13px;font-weight:700}.tag.selected,.tag:hover{background:var(--blue-soft);border-color:#9fc2d0;color:var(--blue-dark)}.topic-notes{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.topic-note{padding:20px;border-left:3px solid var(--mint);background:#f8fbfc}.topic-note strong{display:block;color:var(--blue-dark);margin-bottom:5px}.topic-note p{margin:0;font-size:13px;color:var(--muted);line-height:1.65}.map-board{position:relative;border:1px solid #cbdde2;border-radius:22px;background:#f8fbfc;padding:48px 34px;overflow:hidden}.map-board:before{content:"";position:absolute;inset:0;background-image:radial-gradient(#b8d3d8 1px,transparent 1px);background-size:18px 18px;opacity:.38}.map-flow{position:relative;display:grid;grid-template-columns:repeat(5,1fr);align-items:center}.flow-node{position:relative;text-align:center;z-index:1}.flow-node:after{content:"";position:absolute;left:58%;right:-43%;height:2px;top:27px;background:#98beca;z-index:-1}.flow-node:last-child:after{display:none}.flow-icon{display:flex;align-items:center;justify-content:center;width:56px;height:56px;margin:0 auto 11px;border-radius:15px;background:#fff;color:var(--blue);border:1px solid #bfd6de;box-shadow:0 5px 13px rgba(28,61,79,.08);font-size:20px}.flow-node:nth-child(2) .flow-icon,.flow-node:nth-child(4) .flow-icon{color:var(--mint)}.flow-node strong{font-size:14px;color:var(--blue-dark)}.flow-node span{display:block;font-size:12px;color:var(--muted);line-height:1.5;margin-top:4px}.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.evidence-card{padding:27px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}.evidence-card i{font-size:23px;color:var(--mint);margin-bottom:17px}.evidence-card p{margin:0;color:var(--muted);font-size:14px}.check-list{padding:0;margin:14px 0 0;list-style:none}.check-list li{padding:7px 0;border-top:1px solid #edf2f3;color:#536871;font-size:13px}.check-list i{font-size:12px;margin:0 8px 0 0;color:var(--mint)}.consult{padding:76px 0;background:#edf5f7}.consult-shell{display:grid;grid-template-columns:1fr .86fr;gap:48px;align-items:center;padding:44px 48px;background:#fff;border:1px solid #d4e3e7;border-radius:22px;box-shadow:var(--shadow)}.consult-shell p{max-width:650px;color:var(--muted);margin-bottom:0}.consult-form{display:grid;gap:11px}.consult-form input,.consult-form textarea{width:100%;border:1px solid #c9dbe1;border-radius:9px;padding:11px 13px;color:var(--ink);background:#fff;box-shadow:none}.consult-form textarea{min-height:78px;resize:vertical}.form-note{margin:0;font-size:12px;color:#788991}.footer{padding:70px 0 24px;background:var(--graphite);color:#d9e4e6}.footer-grid{display:grid;grid-template-columns:1.4fr .8fr 1fr;gap:55px}.footer .brand{color:#fff;margin-bottom:17px}.footer .brand-mark{background:#2b4652;border-color:#77b4c8}.footer p{color:#aec0c5;font-size:13px;max-width:430px}.footer h3{font-size:14px;color:#fff;margin-bottom:13px}.footer a:not(.brand){display:block;color:#b8cbd0;font-size:13px;padding:4px 0}.footer a:not(.brand):hover{color:#80d7ce}.footer-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:45px;padding-top:20px;border-top:1px solid rgba(205,224,226,.18);color:#9eb4ba;font-size:12px}.fixed-bar{position:fixed;left:0;right:0;bottom:0;z-index:30;background:rgba(28,53,65,.97);color:#fff;border-top:1px solid rgba(166,210,216,.25);box-shadow:0 -8px 24px rgba(18,39,48,.14)}.fixed-inner{max-width:var(--max);min-height:72px;margin:auto;padding:10px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px}.fixed-copy strong{display:block;font-size:14px}.fixed-copy span{font-size:12px;color:#bcd1d6}.fixed-actions{display:flex;align-items:center;gap:9px}.fixed-actions a{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 14px;border-radius:8px;font-size:13px;font-weight:700}.fixed-actions .call{color:#d8f4f0;border:1px solid rgba(181,230,224,.38)}.fixed-actions .book{background:var(--mint);color:#fff}.fixed-close{border:0;background:transparent;color:#c4d6d9;font-size:18px;min-width:34px;min-height:34px}
@media(max-width:1024px){.main-menu a{padding:9px 8px;font-size:13px}.nav-cta{padding:0 12px}.category-map{grid-template-columns:repeat(3,1fr)}.category-card.active{grid-column:span 2}.map-flow{grid-template-columns:repeat(5,1fr)}.consult-shell{gap:28px;padding:35px}.footer-grid{gap:30px}}
@media(max-width:768px){body{padding-bottom:138px}.topbar .grid-container{justify-content:center}.topbar .top-right{display:none}.nav-wrap{height:66px}.menu-toggle{display:block;order:3}.nav-cta{order:2;padding:0 13px;font-size:13px}.nav-wrap nav{position:absolute;display:none;top:66px;left:0;right:0;padding:12px 24px 18px;background:#fffefd;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}.nav-wrap nav.is-open{display:block}.main-menu{display:block}.main-menu li{display:block}.main-menu a{padding:11px 12px}.page-head{padding:55px 0}.section{padding:66px 0}.category-map{grid-template-columns:repeat(2,1fr)}.category-card.active{grid-column:span 2}.content-lead{grid-template-columns:1fr}.content-lead .cover{min-height:230px}.article-grid{grid-template-columns:1fr}.topic-layout{grid-template-columns:1fr;gap:25px}.map-flow{grid-template-columns:1fr;gap:12px}.flow-node{display:grid;grid-template-columns:58px 1fr;text-align:left;align-items:center;column-gap:13px}.flow-node:after{width:2px;height:22px;left:28px;top:57px;right:auto}.flow-icon{margin:0;grid-row:span 2}.flow-node strong,.flow-node span{margin:0}.evidence-grid{grid-template-columns:1fr}.consult-shell{grid-template-columns:1fr;padding:30px 24px;gap:24px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:span 2}.fixed-inner{padding:8px 16px}.fixed-copy{display:none}.fixed-actions{width:100%}.fixed-actions a{flex:1;padding:0 8px}.fixed-close{flex:0 0 34px}.footer{padding-top:55px}}
@media(max-width:520px){.grid-container{padding-left:18px;padding-right:18px}.brand{font-size:17px}.brand-mark{width:30px;height:30px}.nav-cta{min-height:40px;font-size:12px}.page-head h1{font-size:31px}.page-head p{font-size:15px}.category-map{grid-template-columns:1fr}.category-card.active{grid-column:auto}.article-body{padding:24px 20px}.topic-notes{grid-template-columns:1fr}.map-board{padding:29px 20px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{margin-top:28px}.fixed-actions .call{font-size:12px}.fixed-actions .book{font-size:12px}}

/* roulang page: category2 */
:root{--blue:#28658d;--blue-dark:#174965;--blue-soft:#eaf3f8;--mint:#159c92;--ink:#1d2b34;--muted:#64747d;--line:#dbe5e9;--paper:#fffefd;--mist:#f5f8f9;--graphite:#233640;--radius:16px;--shadow:0 12px 32px rgba(28,61,79,.09);--shadow-lg:0 22px 48px rgba(19,48,65,.16);--max:1240px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.75;font-size:15px;padding-bottom:82px}a{color:inherit;text-decoration:none;transition:.22s ease}img{display:block;width:100%;height:auto}button,input,textarea{font:inherit}button{cursor:pointer}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(31px,4.2vw,51px);line-height:1.22;letter-spacing:-1.2px}h2{font-size:clamp(25px,3vw,35px);line-height:1.34;letter-spacing:-.6px;margin-bottom:14px}h3{font-size:18px;line-height:1.45;margin-bottom:8px}.grid-container{max-width:var(--max);padding-left:24px;padding-right:24px}
.topbar{background:#edf5f7;border-bottom:1px solid #d9e8eb;color:#4a626d;font-size:12px}.topbar .grid-container{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:18px}.top-note{display:flex;align-items:center;gap:8px}.top-note i{color:var(--mint)}.site-header{background:rgba(255,254,253,.96);border-bottom:1px solid rgba(214,226,230,.8);position:sticky;top:0;z-index:50;backdrop-filter:blur(12px)}.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:19px;font-weight:800;color:var(--blue-dark);letter-spacing:-.5px}.brand-mark{width:33px;height:33px;border:2px solid var(--blue);border-radius:10px;position:relative;background:#f0f8fa}.brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:99px;background:var(--mint)}.brand-mark:before{width:15px;height:2px;left:7px;top:10px;box-shadow:4px 7px 0 var(--blue)}.brand-mark:after{width:5px;height:5px;right:5px;bottom:5px}.main-menu{margin:0;display:flex;align-items:center;gap:4px;background:none}.main-menu a{display:block;padding:10px 12px;border-radius:8px;color:#42545d;font-size:14px;font-weight:600}.main-menu a:hover,.main-menu .active a{color:var(--blue-dark);background:var(--blue-soft)}.nav-cta,.button-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;background:var(--blue);color:#fff;font-weight:700;border:1px solid var(--blue);box-shadow:0 7px 16px rgba(40,101,141,.18)}.nav-cta:hover,.button-primary:hover{background:var(--blue-dark);color:#fff;transform:translateY(-2px)}.button-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;background:#fff;color:var(--blue-dark);font-weight:700;border:1px solid #b9ced9}.button-secondary:hover{background:var(--blue-soft);border-color:var(--blue);transform:translateY(-2px)}.menu-toggle{display:none;border:0;background:transparent;font-size:23px;color:var(--blue-dark);min-width:44px;min-height:44px}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(21,156,146,.45);outline-offset:3px}
section{scroll-margin-top:105px}.section{padding:94px 0}.section-soft{background:var(--mist)}.eyebrow{display:inline-flex;gap:7px;align-items:center;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.08em}.eyebrow:before{content:"";width:22px;height:2px;background:var(--mint)}.section-intro{max-width:760px;color:var(--muted);font-size:16px;margin-bottom:35px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px}
.page-head{padding:56px 0 50px;background:linear-gradient(120deg,#f0f7f8 0%,#fffefd 63%);border-bottom:1px solid var(--line);position:relative;overflow:hidden}.page-head:after{content:"";position:absolute;width:320px;height:320px;border:1px solid #cfe2e7;border-radius:50%;right:-100px;top:-170px;box-shadow:0 0 0 36px rgba(222,240,241,.55),0 0 0 72px rgba(234,245,246,.65)}.page-head .grid-container{position:relative;z-index:1}.breadcrumb{display:flex;align-items:center;gap:9px;color:#6d8089;font-size:13px;margin-bottom:18px}.breadcrumb i{font-size:10px;color:var(--mint)}.page-head h1{color:#183243;margin-bottom:15px;max-width:780px}.page-head p{max-width:760px;color:#526871;font-size:16px;margin:0}
.channel-grid{display:grid;grid-template-columns:1.15fr repeat(4,1fr);gap:12px}.channel-card{min-height:128px;border:1px solid var(--line);border-radius:14px;background:#fff;padding:19px;box-shadow:0 5px 12px rgba(34,66,80,.035);position:relative;overflow:hidden}.channel-card:first-child{background:var(--blue);color:#fff}.channel-card:first-child p{color:#dceef4}.channel-card i{display:block;color:var(--mint);font-size:19px;margin-bottom:13px}.channel-card:first-child i{color:#9de0d9}.channel-card h3{font-size:15px;margin:0 0 3px}.channel-card p{margin:0;color:var(--muted);font-size:12px;line-height:1.55}.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b8d1db}
.feature-story{display:grid;grid-template-columns:1.06fr .94fr;background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow);margin-bottom:20px}.feature-story-image{min-height:370px}.feature-story-image img{height:100%;object-fit:cover}.feature-story-body{padding:40px}.meta{display:flex;flex-wrap:wrap;gap:11px;color:#6d7e86;font-size:12px;margin-bottom:14px}.meta span{display:inline-flex;align-items:center;gap:5px}.meta i{color:var(--mint)}.feature-story-body p{color:var(--muted);margin-bottom:20px}.resource-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.resource-card{display:flex;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;min-height:225px;box-shadow:0 5px 14px rgba(34,66,80,.035)}.resource-card img{width:42%;object-fit:cover}.resource-copy{padding:23px 20px;display:flex;flex-direction:column}.resource-copy h3{font-size:17px}.resource-copy p{font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:12px}.text-link{margin-top:auto;color:var(--blue);font-size:13px;font-weight:800;display:inline-flex;align-items:center;gap:7px}.text-link:hover{color:var(--mint);gap:10px}.resource-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b9d1da}
.filter-panel{padding:28px;background:#fff;border:1px solid var(--line);border-radius:18px;display:grid;grid-template-columns:190px 1fr;gap:25px;align-items:center}.filter-panel h2{font-size:20px;margin:0}.filter-panel p{margin:4px 0 0;color:var(--muted);font-size:13px}.tag-list{display:flex;flex-wrap:wrap;gap:10px}.tag{display:inline-flex;align-items:center;min-height:35px;padding:5px 13px;border-radius:99px;border:1px solid #cddde2;color:#51666f;background:#fbfdfd;font-size:13px;font-weight:700}.tag.active,.tag:hover{background:var(--blue-soft);border-color:#9fc1d1;color:var(--blue-dark)}.tag.mint{background:#ecf8f6;border-color:#bde4df;color:#197a74}
.map-board{background:#f0f6f7;border:1px solid #d6e5e8;border-radius:22px;padding:40px;position:relative;overflow:hidden}.map-board:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(40,101,141,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(40,101,141,.06) 1px,transparent 1px);background-size:28px 28px;pointer-events:none}.map-board>*{position:relative}.route{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:33px;position:relative}.route:before{content:"";height:2px;background:linear-gradient(90deg,var(--mint),var(--blue));position:absolute;left:8%;right:8%;top:30px}.route-step{position:relative;text-align:center;padding:0 7px}.route-dot{width:60px;height:60px;background:#fff;border:2px solid #a8c7d3;color:var(--blue);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;box-shadow:0 5px 14px rgba(32,77,96,.09);font-size:20px}.route-step:nth-child(2) .route-dot,.route-step:nth-child(4) .route-dot{border-color:#79c8bf;color:var(--mint)}.route-step h3{font-size:15px}.route-step p{font-size:12px;color:var(--muted);line-height:1.6;margin:0}
.evidence-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:20px}.evidence-card{padding:32px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 6px 18px rgba(34,66,80,.04)}.evidence-card h2{font-size:23px}.evidence-list{list-style:none;padding:0;margin:20px 0 0}.evidence-list li{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid #edf1f2;color:#4c626b}.evidence-list li:last-child{border-bottom:0}.evidence-list i{color:var(--mint);margin-top:5px}.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.metric{padding:21px;background:var(--blue-soft);border-radius:13px;border:1px solid #d7e7ec}.metric strong{display:block;color:var(--blue-dark);font-size:26px;line-height:1.2;margin-bottom:5px}.metric span{font-size:12px;color:#617780}
.consult-box{padding:48px;background:var(--graphite);border-radius:22px;color:#fff;position:relative;overflow:hidden}.consult-box:after{content:"";position:absolute;width:350px;height:350px;border:1px solid rgba(146,218,211,.22);border-radius:50%;right:-105px;bottom:-185px;box-shadow:0 0 0 34px rgba(146,218,211,.06),0 0 0 68px rgba(146,218,211,.04)}.consult-box .grid-x{position:relative;z-index:1}.consult-box h2{color:#fff}.consult-box p{color:#c4d4d9;max-width:570px}.consult-form{display:grid;grid-template-columns:1fr 1fr auto;gap:10px;align-items:center}.consult-form input{width:100%;min-height:46px;border:1px solid #6b818b;border-radius:9px;background:#fff;color:var(--ink);padding:0 13px}.consult-form .button-primary{min-height:46px;background:var(--mint);border-color:var(--mint);white-space:nowrap}.consult-form .button-primary:hover{background:#0d8179}.privacy-note{font-size:12px;color:#aebfc4;margin:13px 0 0}
.footer{background:#1f3038;color:#c2d1d5;padding:66px 0 25px}.footer-grid{display:grid;grid-template-columns:1.55fr .85fr 1fr;gap:55px}.footer .brand{color:#fff;margin-bottom:17px}.footer .brand-mark{background:#294550;border-color:#8bb7ca}.footer p{font-size:13px;line-height:1.85;margin-bottom:15px}.footer h3{font-size:14px;color:#fff;margin-bottom:14px}.footer a:not(.brand){display:block;color:#c2d1d5;font-size:13px;margin:8px 0}.footer a:not(.brand):hover{color:#94ded6}.footer-bottom{border-top:1px solid rgba(203,221,224,.16);margin-top:38px;padding-top:20px;display:flex;justify-content:space-between;gap:15px;font-size:12px;color:#90a7ae}
.fixed-bar{position:fixed;left:0;right:0;bottom:0;z-index:60;background:rgba(28,48,58,.97);color:#fff;border-top:1px solid rgba(183,222,222,.24);box-shadow:0 -8px 25px rgba(15,30,36,.14)}.fixed-inner{max-width:var(--max);margin:auto;padding:11px 24px;display:flex;justify-content:space-between;align-items:center;gap:18px}.fixed-inner p{margin:0;font-size:13px;color:#d7e3e5}.fixed-actions{display:flex;align-items:center;gap:8px}.fixed-actions a{min-height:39px;padding:0 13px;border-radius:8px;display:inline-flex;align-items:center;font-size:13px;font-weight:700}.fixed-phone{color:#d7f4f0}.fixed-demo{background:var(--mint);color:#fff}.fixed-demo:hover{background:#0b8179;color:#fff}.close-fixed{border:0;background:transparent;color:#b8cbd0;font-size:18px;min-width:35px;min-height:35px}
@media(max-width:1080px){.main-menu a{padding:9px 8px;font-size:13px}.nav-cta{padding:0 13px}.channel-grid{grid-template-columns:repeat(3,1fr)}.channel-card:first-child{grid-column:span 2}.resource-card{min-height:238px}.footer-grid{gap:30px}}
@media(max-width:800px){body{padding-bottom:125px}.topbar .grid-container{justify-content:center}.topbar .top-contact{display:none}.nav-wrap{height:68px}.menu-toggle{display:block;order:3}.nav-cta{order:2}.brand{font-size:17px}.main-menu{display:none;position:absolute;top:68px;left:16px;right:16px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);align-items:stretch}.main-menu.is-open{display:flex;flex-direction:column}.main-menu a{padding:11px 13px}.section{padding:65px 0}.page-head{padding:42px 0}.page-head h1{font-size:34px}.channel-grid{grid-template-columns:repeat(2,1fr)}.channel-card:first-child{grid-column:span 2}.feature-story{grid-template-columns:1fr}.feature-story-image{min-height:270px;order:2}.feature-story-body{padding:30px}.resource-grid{grid-template-columns:1fr}.filter-panel{grid-template-columns:1fr;gap:15px}.route{grid-template-columns:1fr;gap:18px;margin-top:24px}.route:before{width:2px;height:auto;top:28px;bottom:28px;left:29px;right:auto}.route-step{display:grid;grid-template-columns:60px 1fr;text-align:left;gap:15px;padding:0}.route-dot{margin:0;grid-row:span 2}.route-step h3{margin:2px 0 0}.route-step p{grid-column:2}.evidence-grid{grid-template-columns:1fr}.consult-form{grid-template-columns:1fr 1fr}.consult-form .button-primary{grid-column:span 2}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:span 2}.fixed-inner{padding:9px 14px}.fixed-inner p{display:none}}
@media(max-width:520px){.grid-container{padding-left:18px;padding-right:18px}.topbar{font-size:11px}.topbar .grid-container{min-height:33px}.nav-cta{font-size:12px;padding:0 10px;min-height:40px}.brand-mark{width:30px;height:30px}.page-head p,.section-intro{font-size:14px}.section{padding:52px 0}.channel-grid{grid-template-columns:1fr}.channel-card:first-child{grid-column:auto}.resource-card{min-height:0}.resource-card img{width:38%}.resource-copy{padding:18px 14px}.resource-copy h3{font-size:15px}.resource-copy p{font-size:12px}.map-board{padding:27px 19px}.evidence-card{padding:25px 20px}.metric-grid{grid-template-columns:1fr 1fr}.metric{padding:15px}.metric strong{font-size:22px}.consult-box{padding:32px 22px}.consult-form{grid-template-columns:1fr}.consult-form .button-primary{grid-column:auto}.footer{padding-top:50px}.footer-grid{grid-template-columns:1fr;gap:24px}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{flex-direction:column;gap:4px}.fixed-actions a{padding:0 9px;font-size:12px}.fixed-phone{display:none}}

/* roulang page: category3 */
:root{--blue:#28658d;--blue-dark:#174965;--blue-soft:#eaf3f8;--mint:#159c92;--ink:#1d2b34;--muted:#64747d;--line:#dbe5e9;--paper:#fffefd;--mist:#f5f8f9;--graphite:#233640;--radius:16px;--shadow:0 12px 32px rgba(28,61,79,.09);--shadow-lg:0 22px 48px rgba(19,48,65,.16);--max:1240px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:15px;line-height:1.75;padding-bottom:82px}a{color:inherit;text-decoration:none;transition:.22s ease}img{display:block;width:100%;height:auto}button,input,textarea{font:inherit}button{cursor:pointer}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.3;color:var(--ink)}h1{font-size:46px;letter-spacing:-1.4px}h2{font-size:30px;letter-spacing:-.7px;margin-bottom:13px}h3{font-size:18px;margin-bottom:8px}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(21,156,146,.45);outline-offset:3px}.grid-container{max-width:var(--max);padding-left:24px;padding-right:24px}
.topbar{background:#edf5f7;border-bottom:1px solid #d9e8eb;color:#4a626d;font-size:12px}.topbar .grid-container{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:18px}.topbar strong{color:var(--blue-dark)}.top-info{display:flex;gap:18px;align-items:center}
.site-header{background:rgba(255,254,253,.96);border-bottom:1px solid rgba(214,226,230,.8);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:19px;font-weight:800;color:var(--blue-dark);letter-spacing:-.5px}.brand-mark{width:33px;height:33px;border:2px solid var(--blue);border-radius:10px;position:relative;background:#f0f8fa}.brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:99px;background:var(--mint)}.brand-mark:before{width:15px;height:2px;left:7px;top:10px;box-shadow:4px 7px 0 var(--blue)}.brand-mark:after{width:5px;height:5px;right:5px;bottom:5px}.main-menu{margin:0;display:flex;align-items:center;gap:4px;background:none}.main-menu a{display:block;padding:10px 12px;border-radius:8px;color:#42545d;font-size:14px;font-weight:600}.main-menu a:hover,.main-menu .active a{color:var(--blue-dark);background:var(--blue-soft)}.nav-cta,.button-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;background:var(--blue);color:#fff;font-weight:700;border:1px solid var(--blue);box-shadow:0 7px 16px rgba(40,101,141,.18)}.nav-cta:hover,.button-primary:hover{background:var(--blue-dark);color:#fff;transform:translateY(-2px)}.button-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;background:#fff;color:var(--blue-dark);font-weight:700;border:1px solid #b9ced9}.button-secondary:hover{background:var(--blue-soft);border-color:var(--blue);transform:translateY(-2px)}.menu-toggle{display:none;border:0;background:transparent;font-size:23px;color:var(--blue-dark);min-width:44px;min-height:44px}
section{scroll-margin-top:108px}.section{padding:94px 0}.section-soft{background:var(--mist)}.eyebrow{display:inline-flex;gap:7px;align-items:center;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.08em}.eyebrow:before{content:"";width:22px;height:2px;background:var(--mint)}.section-intro{max-width:770px;color:var(--muted);font-size:16px;margin-bottom:34px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px}.crumb{font-size:13px;color:#6d8089}.crumb a{color:var(--blue)}.crumb span{margin:0 8px;color:#a1b0b6}
.page-hero{padding:65px 0 72px;background:linear-gradient(135deg,#f4fafb 0%,#e8f2f5 100%);border-bottom:1px solid var(--line);position:relative;overflow:hidden}.page-hero:after{content:"";position:absolute;width:420px;height:420px;border:1px solid rgba(40,101,141,.16);border-radius:50%;right:-100px;top:-210px;box-shadow:0 0 0 48px rgba(21,156,146,.04),0 0 0 96px rgba(40,101,141,.035)}.page-hero .grid-container{position:relative;z-index:1}.page-hero h1{max-width:760px;margin:15px 0 16px}.page-hero p{max-width:760px;margin:0;color:#526873;font-size:17px}.page-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px}.badge{display:inline-flex;align-items:center;border:1px solid #c9dce3;background:rgba(255,255,255,.82);color:#38525e;border-radius:99px;padding:6px 11px;font-size:12px;font-weight:700}
.channel-grid{display:grid;grid-template-columns:1.3fr repeat(4,1fr);gap:12px}.channel-card{min-height:136px;padding:19px;border:1px solid var(--line);border-radius:14px;background:#fff}.channel-card:first-child{background:var(--blue);border-color:var(--blue);color:#fff}.channel-card h3{font-size:15px;margin:7px 0 4px}.channel-card p{margin:0;font-size:12px;color:var(--muted);line-height:1.65}.channel-card:first-child p{color:#dceef4}.channel-card i{color:var(--mint);font-size:18px}.channel-card:first-child i{color:#a9e9e1}.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b5d2dd}
.feature-resource{display:grid;grid-template-columns:1.05fr .95fr;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);margin-bottom:18px}.resource-image{min-height:300px;position:relative;overflow:hidden}.resource-image img{height:100%;object-fit:cover}.resource-image:after{content:"技术专题";position:absolute;left:18px;bottom:18px;color:#fff;background:rgba(23,73,101,.88);font-size:12px;font-weight:700;border-radius:99px;padding:5px 11px}.resource-copy{padding:37px}.resource-copy p{color:var(--muted);margin-bottom:18px}.resource-meta{display:flex;gap:14px;flex-wrap:wrap;color:#66808b;font-size:12px;margin-bottom:15px}.read-link{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-weight:800}.read-link:hover{color:var(--mint);transform:translateX(3px)}
.resource-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.resource-card{display:flex;gap:18px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:16px;transition:.22s}.resource-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b6d1dc}.resource-card img{width:140px;height:142px;object-fit:cover;border-radius:11px}.resource-card .resource-meta{margin-bottom:7px}.resource-card h3{font-size:17px}.resource-card p{font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:8px}
.filter-wrap{padding:28px 30px;border:1px solid var(--line);border-radius:18px;background:#fff;display:grid;grid-template-columns:190px 1fr;gap:26px;align-items:center;box-shadow:0 7px 18px rgba(34,66,80,.04)}.filter-wrap h2{font-size:20px;margin:0}.tag-row{display:flex;gap:10px;flex-wrap:wrap}.filter-tag{border:1px solid #cddde2;border-radius:99px;padding:7px 13px;color:#50656f;background:#f9fbfb;font-size:13px;font-weight:700}.filter-tag.active,.filter-tag:hover{background:var(--blue-soft);color:var(--blue-dark);border-color:#9fc1d0}
.map-panel{background:var(--graphite);border-radius:22px;padding:48px;color:#fff;position:relative;overflow:hidden}.map-panel:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 77% 34%,rgba(21,156,146,.22),transparent 3px),radial-gradient(circle at 78% 34%,transparent 0 53px,rgba(164,214,217,.18) 54px 55px,transparent 56px),linear-gradient(120deg,transparent 48%,rgba(191,227,229,.16) 48.3%,transparent 48.7%),linear-gradient(18deg,transparent 45%,rgba(191,227,229,.12) 45.3%,transparent 45.7%);background-size:28px 28px,auto,auto,auto;opacity:.9}.map-panel>*{position:relative;z-index:1}.map-panel h2{color:#fff;max-width:660px}.map-panel>p{color:#c4d3d8;max-width:720px}.flow-grid{display:grid;grid-template-columns:repeat(5,1fr);margin-top:35px}.flow-item{padding:18px 20px;min-height:154px;border-left:1px solid rgba(196,226,230,.24);position:relative}.flow-item:first-child{border-left:0}.flow-num{display:block;color:#7fddd5;font-weight:800;font-size:13px;margin-bottom:17px}.flow-item h3{color:#fff;font-size:16px}.flow-item p{font-size:12px;color:#b6c8ce;line-height:1.65;margin:0}
.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.evidence-card{padding:27px;background:#fff;border:1px solid var(--line);border-radius:16px}.evidence-card i{font-size:21px;color:var(--mint);margin-bottom:15px}.evidence-card p{color:var(--muted);font-size:13px;margin:0}.evidence-list{list-style:none;margin:16px 0 0;padding:0}.evidence-list li{padding:8px 0;border-top:1px solid #edf1f2;font-size:13px;color:#465d67}.evidence-list i{font-size:11px;margin:0 8px 0 0;color:var(--mint)}
.consult-box{display:grid;grid-template-columns:1.1fr .9fr;gap:42px;padding:44px 48px;border:1px solid #cfdee3;border-radius:22px;background:#edf6f8;box-shadow:var(--shadow)}.consult-box h2{margin-bottom:13px}.consult-box p{color:#536a74;max-width:650px}.consult-actions{display:flex;align-items:center;justify-content:flex-end;gap:12px;flex-wrap:wrap}.privacy-note{font-size:12px;color:#73868e;margin-top:16px}
.footer{background:#223640;color:#d1e0e3;padding:64px 0 26px}.footer-grid{display:grid;grid-template-columns:1.55fr .8fr 1fr;gap:50px}.footer .brand{color:#fff;margin-bottom:16px}.footer .brand-mark{background:#2c4651;border-color:#8ec2d6}.footer p{color:#b8c9cf;font-size:13px;line-height:1.8}.footer h3{color:#fff;font-size:14px;margin-bottom:13px}.footer a:not(.brand){display:block;color:#c2d3d8;font-size:13px;margin:7px 0}.footer a:not(.brand):hover{color:#9de0d9}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(207,227,230,.18);margin-top:36px;padding-top:20px;color:#9fb4bb;font-size:12px}
.fixed-bar{position:fixed;z-index:30;bottom:0;left:0;right:0;background:rgba(29,53,64,.97);color:#fff;box-shadow:0 -8px 26px rgba(17,38,47,.16)}.fixed-inner{max-width:var(--max);min-height:72px;padding:12px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px;margin:auto}.fixed-copy strong{display:block;font-size:14px}.fixed-copy span{font-size:12px;color:#b8cbd1}.fixed-actions{display:flex;gap:10px}.fixed-actions a{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 14px;border-radius:9px;background:#fff;color:var(--blue-dark);font-size:13px;font-weight:800}.fixed-actions a:first-child{background:var(--mint);color:#fff}.fixed-close{border:0;background:transparent;color:#d1e1e5;font-size:18px;min-width:34px;min-height:34px}
@media(max-width:1024px){.main-menu a{padding:9px 8px;font-size:13px}.nav-cta{padding:0 12px}.channel-grid{grid-template-columns:repeat(3,1fr)}.channel-card:first-child{grid-column:span 2}.resource-grid{grid-template-columns:1fr}.flow-grid{grid-template-columns:repeat(3,1fr)}.flow-item:nth-child(4){border-left:0}.consult-box{padding:36px}}
@media(max-width:768px){body{padding-bottom:138px}.grid-container{padding-left:18px;padding-right:18px}.topbar .grid-container{justify-content:center}.top-info{display:none}.nav-wrap{height:66px;gap:10px}.menu-toggle{display:block;order:3}.nav-cta{margin-left:auto;font-size:12px;padding:0 11px}.main-menu{display:none;position:absolute;left:0;right:0;top:66px;padding:12px 18px 18px;background:#fffefd;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.main-menu.is-open{display:flex}.main-menu a{padding:12px}.section{padding:66px 0}h1{font-size:34px}h2{font-size:26px}.page-hero{padding:48px 0 54px}.page-hero p{font-size:15px}.section-head{display:block}.channel-grid{grid-template-columns:repeat(2,1fr)}.channel-card:first-child{grid-column:span 2}.feature-resource{grid-template-columns:1fr}.resource-image{min-height:220px}.resource-copy{padding:27px}.resource-card img{width:122px;height:130px}.filter-wrap{grid-template-columns:1fr;padding:24px}.map-panel{padding:34px 24px}.flow-grid{grid-template-columns:1fr}.flow-item,.flow-item:nth-child(4){border-left:0;border-top:1px solid rgba(196,226,230,.24)}.flow-item:first-child{border-top:0}.evidence-grid{grid-template-columns:1fr}.consult-box{grid-template-columns:1fr;gap:18px;padding:31px 25px}.consult-actions{justify-content:flex-start}.footer-grid{grid-template-columns:1fr;gap:25px}.footer-bottom{display:block}.footer-bottom span{display:block;margin:6px 0}.fixed-inner{padding:10px 14px}.fixed-copy{display:none}.fixed-actions{flex:1}.fixed-actions a{flex:1;padding:0 8px}.fixed-close{padding:0}}
@media(max-width:520px){.brand{font-size:17px}.brand-mark{width:30px;height:30px}.nav-cta{min-height:40px}.page-meta{margin-top:18px}.channel-grid{grid-template-columns:1fr}.channel-card:first-child{grid-column:auto}.resource-card{display:block}.resource-card img{width:100%;height:165px;margin-bottom:16px}.resource-card h3{font-size:16px}.button-primary,.button-secondary{width:100%}.consult-actions{display:grid;grid-template-columns:1fr;width:100%}.fixed-actions a{font-size:12px}.fixed-actions a:last-child{display:none}}

/* roulang page: category4 */
:root{
 --blue:#28658d;--blue-dark:#174965;--blue-soft:#eaf3f8;--mint:#159c92;
 --ink:#1d2b34;--muted:#64747d;--line:#dbe5e9;--paper:#fffefd;--mist:#f5f8f9;
 --graphite:#233640;--radius:16px;--shadow:0 12px 32px rgba(28,61,79,.09);
 --shadow-lg:0 22px 48px rgba(19,48,65,.16);--max:1240px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.75;font-size:15px;padding-bottom:74px}
a{color:inherit;text-decoration:none;transition:.22s ease}
img{display:block;width:100%;height:auto}
button,input,textarea{font:inherit}
button{cursor:pointer}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(32px,4vw,54px);line-height:1.2;letter-spacing:-1px}
h2{font-size:clamp(26px,3vw,38px);line-height:1.3;letter-spacing:-.5px}
h3{font-size:18px;line-height:1.4}
.grid-container{max-width:var(--max);padding-left:24px;padding-right:24px}
section{scroll-margin-top:112px}
.topbar{background:#edf5f7;border-bottom:1px solid #d9e8eb;color:#4a626d;font-size:12px}
.topbar .grid-container{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.site-header{background:rgba(255,254,253,.96);border-bottom:1px solid rgba(214,226,230,.8);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:19px;font-weight:800;color:var(--blue-dark);letter-spacing:-.5px}
.brand-mark{width:33px;height:33px;border:2px solid var(--blue);border-radius:10px;position:relative;background:#f0f8fa;flex:none}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:99px;background:var(--mint)}
.brand-mark:before{width:15px;height:2px;left:7px;top:10px;box-shadow:4px 7px 0 var(--blue)}
.brand-mark:after{width:5px;height:5px;right:5px;bottom:5px}
.main-menu{margin:0;display:flex;align-items:center;gap:4px;background:none}
.main-menu a{display:block;padding:10px 12px;border-radius:8px;color:#42545d;font-size:14px;font-weight:600}
.main-menu a:hover,.main-menu .active a{color:var(--blue-dark);background:var(--blue-soft)}
.nav-cta,.button-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;background:var(--blue);color:#fff;font-weight:700;border:1px solid var(--blue);box-shadow:0 7px 16px rgba(40,101,141,.18)}
.nav-cta:hover,.button-primary:hover{background:var(--blue-dark);color:#fff;transform:translateY(-2px)}
.button-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;background:#fff;color:var(--blue-dark);font-weight:700;border:1px solid #b9ced9}
.button-secondary:hover{background:var(--blue-soft);border-color:var(--blue);transform:translateY(-2px)}
.menu-toggle{display:none;border:0;background:transparent;font-size:23px;color:var(--blue-dark);min-width:44px;min-height:44px}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(21,156,146,.35);outline-offset:3px}
.page-head{padding:64px 0 58px;background:linear-gradient(180deg,#f7fbfc,#edf5f7);border-bottom:1px solid var(--line)}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:22px}
.breadcrumb a{color:var(--blue)}
.page-head h1{max-width:780px;margin-bottom:16px;color:#183243}
.page-head p{max-width:700px;color:var(--muted);font-size:17px;margin-bottom:0}
.eyebrow{display:inline-flex;gap:7px;align-items:center;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:22px;height:2px;background:var(--mint)}
.section{padding:92px 0}
.section-soft{background:var(--mist)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:36px}
.section-head h2{margin:10px 0 0;color:#1d3949}
.section-intro{max-width:700px;color:var(--muted);font-size:16px;margin:10px 0 0}
.guide-grid{display:grid;grid-template-columns:1.2fr repeat(4,1fr);gap:12px}
.guide-card{min-height:150px;padding:21px;border:1px solid var(--line);border-radius:14px;background:#fff;position:relative}
.guide-card:first-child{background:var(--blue);color:#fff}
.guide-card i{color:var(--mint);font-size:19px;margin-bottom:18px}
.guide-card:first-child i{color:#a6e7df}
.guide-card h3{font-size:15px;margin-bottom:5px}
.guide-card p{font-size:12px;line-height:1.6;color:var(--muted);margin:0}
.guide-card:first-child p{color:#dceef4}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b8d1db}
.content-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:stretch}
.practice-feature,.practice-card,.evidence-card,.graph-panel{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 7px 18px rgba(34,66,80,.045)}
.practice-feature{display:grid;grid-template-columns:.9fr 1.1fr}
.practice-feature img{height:100%;min-height:310px;object-fit:cover}
.practice-body{padding:30px}
.practice-body h3{font-size:25px;color:var(--blue-dark);margin:12px 0}
.meta{display:flex;gap:13px;flex-wrap:wrap;color:#71838b;font-size:12px;margin-bottom:13px}
.meta span{display:inline-flex;align-items:center;gap:5px}
.practice-body p,.practice-card p,.evidence-card p{color:var(--muted);font-size:14px}
.practice-list{display:grid;gap:16px}
.practice-card{padding:23px;transition:.22s}
.practice-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.practice-card h3{font-size:18px;color:var(--blue-dark);margin:7px 0}
.text-link{display:inline-flex;gap:8px;align-items:center;color:var(--blue);font-weight:700;font-size:14px}
.text-link:hover{color:var(--mint);gap:12px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.tag{display:inline-flex;align-items:center;min-height:36px;padding:0 15px;border-radius:99px;border:1px solid #c9dce3;background:#fff;color:#4a626d;font-size:13px}
.tag.active,.tag:hover{background:var(--blue-soft);border-color:#9fc3d2;color:var(--blue-dark)}
.graph-panel{padding:31px;position:relative;background:#fafdfe}
.graph-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin-top:26px}
.flow-node{position:relative;text-align:center;padding:19px 10px 15px;background:#fff;border:1px solid #cfe0e5;min-height:116px}
.flow-node:first-child{border-radius:12px 0 0 12px}
.flow-node:last-child{border-radius:0 12px 12px 0}
.flow-node:not(:last-child):after{content:"›";position:absolute;right:-10px;top:37px;width:20px;height:34px;line-height:29px;border-radius:50%;background:var(--mint);color:#fff;font-size:24px;z-index:2}
.flow-node i{display:block;color:var(--blue);font-size:20px;margin-bottom:8px}
.flow-node strong{display:block;font-size:14px;color:var(--ink)}
.flow-node small{display:block;color:var(--muted);font-size:11px;margin-top:4px;line-height:1.45}
.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.evidence-card{padding:25px;min-height:205px}
.evidence-card i{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;background:#e7f7f4;color:var(--mint);margin-bottom:17px}
.evidence-card h3{font-size:17px;color:var(--blue-dark);margin-bottom:9px}
.checklist{list-style:none;padding:0;margin:15px 0 0}
.checklist li{padding:7px 0;border-bottom:1px solid #edf1f2;color:#52666e;font-size:13px}
.checklist i{color:var(--mint);margin-right:8px}
.cta-panel{background:#eaf3f8;border:1px solid #cfe1e8;border-radius:20px;padding:42px 46px;display:flex;justify-content:space-between;align-items:center;gap:30px}
.cta-panel h2{color:var(--blue-dark);margin-bottom:10px}
.cta-panel p{color:var(--muted);margin-bottom:0;max-width:650px}
.cta-actions{display:flex;gap:10px;flex-wrap:wrap;flex:none}
.footer{background:var(--graphite);color:#dce8eb;padding:62px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.15fr;gap:55px}
.footer .brand{color:#fff;margin-bottom:17px}
.footer .brand-mark{border-color:#9bd8d1;background:#31505b}
.footer p{color:#a9bdc4;font-size:13px;line-height:1.8}
.footer h3{font-size:15px;color:#fff;margin-bottom:16px}
.footer-grid>div>a:not(.brand){display:block;color:#b5c9ce;font-size:13px;margin:8px 0}
.footer-grid>div>a:not(.brand):hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(220,232,235,.15);margin-top:40px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#91aab2;font-size:12px}
.fixed-bar{position:fixed;z-index:30;left:0;right:0;bottom:0;background:rgba(255,255,255,.97);border-top:1px solid var(--line);box-shadow:0 -8px 25px rgba(27,58,73,.1);padding:12px 0}
.fixed-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.fixed-inner strong{color:var(--blue-dark);font-size:14px}
.fixed-actions{display:flex;gap:9px}
.close-bar{border:0;background:transparent;color:var(--muted);min-width:44px;min-height:44px}
@media(max-width:1050px){
 .main-menu a{padding-left:8px;padding-right:8px;font-size:13px}
 .guide-grid{grid-template-columns:repeat(3,1fr)}
 .guide-card:first-child{grid-column:span 3}
}
@media(max-width:760px){
 .topbar .grid-container{min-height:32px;font-size:11px}
 .topbar .grid-container span:last-child{display:none}
 .nav-wrap{height:66px}
 .main-menu{display:none;position:absolute;left:16px;right:16px;top:69px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-lg);flex-direction:column;align-items:stretch}
 .main-menu.is-open{display:flex}
 .main-menu a{min-height:44px;padding:10px 14px}
 .nav-cta{display:none}
 .menu-toggle{display:block}
 .page-head{padding:48px 0 42px}
 .section{padding:64px 0}
 .section-head{display:block;margin-bottom:25px}
 .guide-grid,.evidence-grid{grid-template-columns:1fr 1fr}
 .guide-card:first-child{grid-column:span 2}
 .content-layout,.practice-feature{grid-template-columns:1fr}
 .practice-feature img{height:230px;min-height:0}
 .graph-flow{grid-template-columns:1fr;gap:9px}
 .flow-node,.flow-node:first-child,.flow-node:last-child{border-radius:11px}
 .flow-node:not(:last-child):after{content:"↓";right:calc(50% - 10px);top:auto;bottom:-20px}
 .cta-panel{display:block;padding:31px 24px}
 .cta-actions{margin-top:24px}
 .footer-grid{grid-template-columns:1fr;gap:24px}
 .footer-bottom{display:block}
 .footer-bottom span{display:block;margin-top:6px}
 .fixed-inner strong{font-size:12px;line-height:1.4}
}
@media(max-width:520px){
 body{font-size:14px}
 .grid-container{padding-left:17px;padding-right:17px}
 .brand{font-size:16px}
 .brand-mark{width:30px;height:30px}
 .guide-grid,.evidence-grid{grid-template-columns:1fr}
 .guide-card:first-child{grid-column:auto}
 .practice-body{padding:22px}
 .fixed-bar{padding-bottom:calc(8px + env(safe-area-inset-bottom))}
 .fixed-inner{gap:8px}
 .fixed-inner strong{max-width:110px}
 .fixed-actions{gap:5px}
 .fixed-actions .button-primary,.fixed-actions .button-secondary{padding:0 10px;font-size:12px}
}

/* roulang page: category5 */
:root{--blue:#28658d;--blue-dark:#174965;--blue-soft:#eaf3f8;--mint:#159c92;--ink:#1d2b34;--muted:#64747d;--line:#dbe5e9;--paper:#fffefd;--mist:#f5f8f9;--graphite:#233640;--radius:16px;--shadow:0 12px 32px rgba(28,61,79,.09);--shadow-lg:0 22px 48px rgba(19,48,65,.16);--max:1240px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.75;font-size:15px;padding-bottom:82px}
a{color:inherit;text-decoration:none;transition:.22s ease}
img{display:block;width:100%;height:auto}
button,input,textarea{font:inherit}
button{cursor:pointer}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(34px,5vw,60px);line-height:1.17;letter-spacing:-1.8px}
h2{font-size:clamp(26px,3vw,38px);line-height:1.3;letter-spacing:-.8px}
h3{font-size:18px;line-height:1.4}
.grid-container{max-width:var(--max);padding-left:24px;padding-right:24px}
.topbar{background:#edf5f7;border-bottom:1px solid #d9e8eb;color:#4a626d;font-size:12px}
.topbar .grid-container{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.site-header{background:rgba(255,254,253,.96);border-bottom:1px solid rgba(214,226,230,.8);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:19px;font-weight:800;color:var(--blue-dark);letter-spacing:-.5px}
.brand-mark{width:33px;height:33px;border:2px solid var(--blue);border-radius:10px;position:relative;background:#f0f8fa}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;border-radius:99px;background:var(--mint)}
.brand-mark:before{width:15px;height:2px;left:7px;top:10px;box-shadow:4px 7px 0 var(--blue)}
.brand-mark:after{width:5px;height:5px;right:5px;bottom:5px}
.main-menu{margin:0;display:flex;align-items:center;gap:4px;background:none}
.main-menu a{display:block;padding:10px 12px;border-radius:8px;color:#42545d;font-size:14px;font-weight:600}
.main-menu a:hover,.main-menu .active a{color:var(--blue-dark);background:var(--blue-soft)}
.nav-cta,.button-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;background:var(--blue);color:#fff;font-weight:700;border:1px solid var(--blue);box-shadow:0 7px 16px rgba(40,101,141,.18)}
.nav-cta:hover,.button-primary:hover{background:var(--blue-dark);color:#fff;transform:translateY(-2px)}
.button-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;background:#fff;color:var(--blue-dark);font-weight:700;border:1px solid #b9ced9}
.button-secondary:hover{background:var(--blue-soft);border-color:var(--blue);transform:translateY(-2px)}
.menu-toggle{display:none;border:0;background:transparent;font-size:23px;color:var(--blue-dark);min-width:44px;min-height:44px}
section{scroll-margin-top:112px}
.section{padding:94px 0}
.section-soft{background:var(--mist)}
.eyebrow{display:inline-flex;gap:7px;align-items:center;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:22px;height:2px;background:var(--mint)}
.section-intro{max-width:720px;color:var(--muted);font-size:16px;margin-bottom:34px}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:34px}
.section-head .section-intro{margin-bottom:0}
.page-banner{padding:74px 0 70px;background:linear-gradient(110deg,#eef6f8,#f8fbfb);border-bottom:1px solid var(--line)}
.banner-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:54px;align-items:center}
.breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:20px}
.breadcrumb a{color:var(--blue)}
.banner-copy h1{margin:0 0 18px;color:#183243}
.banner-copy p{max-width:650px;color:#536770;font-size:17px;margin-bottom:0}
.banner-image{height:270px;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-lg);border:7px solid rgba(255,255,255,.75)}
.banner-image img{height:100%;object-fit:cover}
.category-nav{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.channel{padding:18px;border:1px solid var(--line);background:#fff;border-radius:13px;min-height:105px}
.channel strong{display:block;color:var(--blue-dark);font-size:15px;margin-bottom:4px}
.channel span{font-size:12px;color:var(--muted)}
.channel:hover,.channel.current{border-color:#8fb8c9;box-shadow:var(--shadow);transform:translateY(-3px)}
.channel.current{background:var(--blue);color:#fff}
.channel.current strong,.channel.current span{color:#fff}
.resource-layout{display:grid;grid-template-columns:1.12fr .88fr;gap:18px}
.resource-feature,.resource-item{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 7px 20px rgba(34,66,80,.045)}
.resource-feature{display:grid;grid-template-columns:.9fr 1.1fr}
.resource-feature img{height:100%;min-height:260px;object-fit:cover}
.resource-copy{padding:28px}
.resource-copy h3{font-size:23px;color:var(--blue-dark)}
.resource-copy p,.resource-item p{color:var(--muted);font-size:14px}
.resource-meta{display:flex;gap:12px;flex-wrap:wrap;color:#78909a;font-size:12px;margin-bottom:12px}
.read-more{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-weight:700;font-size:13px}
.read-more:hover{color:var(--mint);gap:12px}
.resource-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.resource-item{padding:22px}
.resource-item h3{font-size:17px;color:var(--blue-dark);margin-bottom:8px}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:25px}
.tag{padding:7px 13px;border-radius:99px;background:#fff;border:1px solid #cbdde3;color:#536c76;font-size:13px}
.tag:hover,.tag.active{background:var(--blue-soft);border-color:#8cb6c7;color:var(--blue-dark)}
.map-flow{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:0;padding:36px 20px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
.map-flow:before{content:"";position:absolute;left:10%;right:10%;top:73px;border-top:2px dashed #abd4d2}
.flow-node{position:relative;z-index:1;text-align:center}
.node-dot{width:42px;height:42px;margin:15px auto 17px;border-radius:50%;display:grid;place-items:center;background:#e6f6f4;color:var(--mint);border:5px solid #fff;box-shadow:0 0 0 1px #b7deda;font-weight:800}
.flow-node strong{display:block;color:var(--blue-dark);font-size:15px}
.flow-node p{font-size:12px;color:var(--muted);padding:0 8px;margin:5px 0 0}
.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.evidence-card{padding:27px;background:#fff;border:1px solid var(--line);border-radius:16px}
.evidence-card i{font-size:22px;color:var(--mint);margin-bottom:16px}
.evidence-card h3{color:var(--blue-dark);margin-bottom:8px}
.evidence-card p{font-size:14px;color:var(--muted);margin-bottom:0}
.evidence-card ul{padding-left:19px;color:#536770;font-size:13px;margin-bottom:0}
.consult-section{background:#edf5f7;padding:78px 0}
.consult-box{display:grid;grid-template-columns:1fr .9fr;gap:50px;align-items:center}
.consult-box h2{color:var(--blue-dark);margin-bottom:13px}
.consult-box p{color:var(--muted)}
.consult-form{background:#fff;padding:25px;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
label{display:block;color:#4c626b;font-size:13px;font-weight:700;margin-bottom:12px}
input,textarea{display:block;width:100%;margin-top:5px;border:1px solid #cbdbe0;border-radius:9px;padding:10px 12px;color:var(--ink);background:#fcfefe;outline:none}
textarea{min-height:86px;resize:vertical}
input:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(40,101,141,.14)}
.form-note{font-size:12px;color:#809098;margin:11px 0 0}
.form-message{color:var(--mint);font-size:13px;margin:10px 0 0;display:none}
.footer{background:var(--graphite);color:#d4e1e4;padding:62px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr .8fr 1fr;gap:55px}
.footer .brand{color:#fff;margin-bottom:17px}
.footer p{color:#aebfc4;font-size:13px}
.footer h3{font-size:15px;color:#fff;margin-bottom:15px}
.footer-grid a:not(.brand){display:block;color:#b5c7cc;font-size:13px;margin:7px 0}
.footer-grid a:hover{color:#8fe1d9}
.footer-bottom{border-top:1px solid rgba(221,239,241,.15);margin-top:35px;padding-top:17px;display:flex;justify-content:space-between;gap:16px;color:#91a8af;font-size:12px}
.fixed-bar{position:fixed;bottom:0;left:0;right:0;z-index:30;background:rgba(255,255,255,.96);border-top:1px solid #d8e4e8;box-shadow:0 -8px 24px rgba(22,60,76,.1);padding:12px 0}
.fixed-inner{display:flex;align-items:center;justify-content:space-between;gap:18px}
.fixed-inner strong{color:var(--blue-dark)}
.fixed-actions{display:flex;gap:9px;align-items:center}
.close-bar{min-width:36px;min-height:36px;border:0;background:transparent;color:#799099;font-size:18px}
@media(max-width:1024px){.main-menu{gap:0}.main-menu a{padding:9px 7px;font-size:13px}.banner-grid{gap:28px}.category-nav{grid-template-columns:repeat(3,1fr)}}
@media(max-width:768px){.nav-wrap{height:64px}.menu-toggle{display:block}.nav-cta{display:none}.main-menu{display:none;position:absolute;top:100%;left:0;right:0;padding:12px 24px 18px;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.main-menu.is-open{display:flex}.main-menu a{padding:12px 14px}.banner-grid,.resource-layout,.consult-box{grid-template-columns:1fr}.banner-image{height:220px}.section{padding:70px 0}.resource-feature{grid-template-columns:1fr}.resource-feature img{height:220px;min-height:0}.map-flow{grid-template-columns:1fr;gap:10px;padding:18px}.map-flow:before{left:50%;top:45px;bottom:45px;right:auto;border-top:0;border-left:2px dashed #abd4d2}.flow-node{display:grid;grid-template-columns:58px 1fr;text-align:left;align-items:center}.node-dot{margin:0 auto}.flow-node p{padding:0}.evidence-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:5px}.fixed-inner{align-items:center}.fixed-inner strong{font-size:13px}.fixed-actions .button-secondary{display:none}}
@media(max-width:520px){body{font-size:14px}.grid-container{padding-left:18px;padding-right:18px}.topbar .grid-container{min-height:32px}.topbar .grid-container span:last-child{display:none}.brand{font-size:17px}.brand-mark{width:30px;height:30px}.page-banner{padding:50px 0 46px}.banner-copy h1{font-size:35px}.banner-copy p{font-size:15px}.category-nav,.resource-list{grid-template-columns:1fr}.section-head{display:block}.section-head .section-intro{margin-top:12px}.section-intro{font-size:15px}.form-row{grid-template-columns:1fr}.consult-box{gap:24px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.fixed-bar{padding:9px 0}.fixed-inner{gap:8px}.fixed-inner strong{max-width:130px;line-height:1.4}.fixed-actions .button-primary{padding:0 12px;font-size:13px}.close-bar{min-width:30px}}