/* roulang page: index */
:root{--blue:#1758a6;--blue2:#0d3d79;--cyan:#27b9b0;--mint:#e8f7f4;--ice:#eef6fc;--warm:#fbfcfe;--ink:#17283d;--muted:#66788e;--line:#dbe6f0;--white:#fff;--radius:18px;--shadow:0 16px 38px rgba(25,67,111,.10);--soft:0 7px 20px rgba(25,67,111,.08)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;color:var(--ink);background:var(--warm);line-height:1.8;font-size:16px}
a{color:var(--blue);text-decoration:none;transition:.25s}
a:hover{color:var(--blue2)}
img{display:block;width:100%;object-fit:cover}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(1200px,calc(100% - 48px));margin:auto}
.site-header{height:80px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.nav-wrap{height:80px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:10px;font-size:23px;font-weight:800;color:var(--blue2);letter-spacing:.02em;white-space:nowrap}
.logo-mark{width:31px;height:31px;border-radius:10px 10px 10px 3px;background:var(--blue);position:relative;transform:rotate(-10deg)}
.logo-mark:after{content:"";position:absolute;width:15px;height:5px;border:2px solid #fff;border-left:0;border-radius:0 8px 8px 0;right:4px;top:11px;transform:rotate(18deg)}
.nav{display:flex;align-items:center;gap:5px}
.nav a{padding:8px 12px;color:#4c6076;font-size:14px;border-radius:10px;position:relative}
.nav a:hover,.nav a.active{color:var(--blue);background:#f0f6fc}
.nav a.active:after{content:"";position:absolute;height:3px;width:22px;background:var(--cyan);bottom:2px;left:50%;transform:translateX(-50%);border-radius:3px}
.nav .nav-cta{background:var(--blue);color:#fff;padding:10px 18px;margin-left:8px}
.nav .nav-cta:hover{background:var(--blue2);color:#fff;transform:translateY(-2px)}
.menu-btn{display:none;background:none;border:0;color:var(--blue2);font-size:26px}
.hero{padding:74px 0 58px;background:linear-gradient(115deg,#f5faff 0%,#fff 58%,#edf8f7 100%);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr 1.08fr;gap:62px;align-items:center}
.eyebrow,.tag{display:inline-flex;align-items:center;gap:7px;color:var(--blue);font-size:13px;font-weight:700;letter-spacing:.08em}
.eyebrow:before{content:"";width:25px;height:3px;border-radius:4px;background:var(--cyan)}
h1{font-size:clamp(42px,5.2vw,68px);line-height:1.18;letter-spacing:-.045em;color:var(--blue2);margin:18px 0 22px}
.hero-copy{font-size:18px;color:var(--muted);max-width:590px;line-height:1.9}
.actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:30px}
.btn{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:10px 22px;border-radius:12px;border:1px solid transparent;font-weight:700;transition:.25s}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(23,88,166,.22)}
.btn-primary:hover{background:var(--blue2);color:#fff;transform:translateY(-2px);box-shadow:0 12px 25px rgba(23,88,166,.28)}
.btn-light{background:#fff;border-color:#b9d0e5;color:var(--blue)}
.btn-light:hover{border-color:var(--blue);background:var(--ice);transform:translateY(-2px)}
.hero-note{display:flex;gap:25px;margin-top:31px;color:var(--muted);font-size:13px}
.hero-note strong{display:block;color:var(--blue2);font-size:22px;line-height:1.2}
.hero-visual{position:relative}
.hero-visual img{height:445px;border-radius:28px;box-shadow:var(--shadow)}
.visual-panel{position:absolute;left:-28px;bottom:24px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:17px;padding:16px 19px;width:220px}
.visual-panel small{color:var(--muted);font-size:12px}.visual-panel b{display:block;font-size:22px;color:var(--blue2)}
.progress{height:7px;background:#e5edf5;border-radius:9px;overflow:hidden;margin:9px 0}.progress i{height:100%;display:block;background:var(--cyan);border-radius:9px}
.trust{border-top:1px solid var(--line);margin-top:56px;padding-top:21px;display:flex;justify-content:space-between;color:#60778d;font-size:14px;gap:20px;flex-wrap:wrap}
.section{padding:92px 0}.section.alt{background:var(--ice)}.section.mint{background:var(--mint)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:38px}
.section-head h2{font-size:clamp(29px,3.5vw,42px);line-height:1.3;color:var(--blue2);letter-spacing:-.03em}
.section-head p{max-width:570px;color:var(--muted)}
.kicker{color:var(--cyan);font-weight:800;font-size:13px;margin-bottom:8px}
.story{display:grid;grid-template-columns:.86fr 1.14fr;gap:62px;align-items:center}
.story img{height:440px;border-radius:22px}
.story-copy p{color:var(--muted);margin:16px 0}
.story-list{border-top:1px solid var(--line);margin-top:22px}.story-list div{padding:13px 0;border-bottom:1px solid var(--line);display:flex;gap:18px}.story-list b{color:var(--blue);min-width:70px}
.service-layout{display:grid;grid-template-columns:245px 1fr;gap:30px}
.side-index{border-right:1px solid var(--line);padding-right:25px}.side-index a{display:block;padding:14px 16px;color:var(--muted);border-radius:11px;margin-bottom:7px}.side-index a:first-child,.side-index a:hover{background:#fff;color:var(--blue);box-shadow:var(--soft);font-weight:700}
.service-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--soft)}
.service-panel h3{font-size:25px;color:var(--blue2);margin-bottom:12px}.service-panel>p{color:var(--muted);max-width:720px}
.feature-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;margin-top:25px}.feature{border:1px solid var(--line);border-radius:14px;padding:20px;background:#fbfdff}.feature h4{color:var(--blue2);margin-bottom:4px}.feature p{font-size:14px;color:var(--muted)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--soft);overflow:hidden}.stat{padding:30px 25px;border-right:1px solid var(--line)}.stat:last-child{border:0}.stat strong{font-size:38px;color:var(--blue);display:block;line-height:1.2}.stat span{display:block;color:var(--muted);font-size:14px;margin-top:8px}
.case-grid{display:grid;grid-template-columns:1.22fr .78fr;gap:20px}.case-main,.case-small{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--soft)}.case-main img{height:300px}.case-small{display:grid;grid-template-columns:145px 1fr}.case-small img{height:100%}.case-text{padding:23px}.case-text h3{font-size:23px;color:var(--blue2);line-height:1.4;margin:7px 0}.case-text p{color:var(--muted);font-size:14px}.case-stack{display:grid;gap:20px}.tag{letter-spacing:0;background:#e7f4f8;padding:4px 9px;border-radius:6px;font-size:12px}
.plans{display:grid;grid-template-columns:.8fr 1.2fr;gap:36px;align-items:start}.plan-intro p{color:var(--muted);margin:15px 0}.plan-table{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}.plan-row{display:grid;grid-template-columns:1.1fr 1fr 1fr 1fr;border-bottom:1px solid var(--line)}.plan-row:last-child{border:0}.plan-row>*{padding:15px 17px;border-right:1px solid var(--line);font-size:14px}.plan-row>*:last-child{border:0}.plan-row.head{background:var(--blue2);color:#fff}.plan-row strong{color:var(--blue2)}
.news-layout{display:grid;grid-template-columns:1fr 300px;gap:35px}.news-list{background:#fff;border:1px solid var(--line);border-radius:18px;padding:7px 24px}.news-item{display:grid;grid-template-columns:92px 1fr 85px;gap:20px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}.news-item:last-child{border:0}.news-date{font-size:13px;color:var(--cyan);font-weight:700}.news-item h3{font-size:18px;color:var(--blue2);margin-bottom:3px}.news-item p{font-size:13px;color:var(--muted)}.news-item .more{font-size:13px;text-align:right}.recommend{background:var(--blue2);color:#fff;border-radius:18px;padding:25px}.recommend h3{font-size:21px;margin-bottom:14px}.recommend a{display:block;color:#dbeeff;border-top:1px solid rgba(255,255,255,.2);padding:13px 0;font-size:14px}
.faq-wrap{display:grid;grid-template-columns:.7fr 1.3fr;gap:55px}.faq-wrap>div>p{color:var(--muted);margin-top:16px}.faq{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:17px 0}summary{cursor:pointer;font-weight:700;color:var(--blue2);list-style:none;padding-right:25px;position:relative}summary:after{content:"＋";position:absolute;right:0;color:var(--cyan)}details[open] summary:after{content:"−"}details p{color:var(--muted);font-size:14px;margin-top:10px;max-width:720px}
.contact{background:var(--blue2);color:#fff;border-radius:25px;padding:48px;display:grid;grid-template-columns:.9fr 1.1fr;gap:50px}.contact h2{font-size:36px;line-height:1.35}.contact p{color:#c4d7eb;margin:16px 0}.contact-points{margin-top:25px}.contact-points span{display:block;padding:8px 0;color:#dbe8f4}.contact-points span:before{content:"✓";color:#6ce1d4;margin-right:10px}.form-card{background:#fff;border-radius:17px;padding:25px;color:var(--ink);display:grid;grid-template-columns:1fr 1fr;gap:15px}.field{display:flex;flex-direction:column;gap:5px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:700;color:var(--blue2)}.field input,.field select,.field textarea{border:1px solid var(--line);border-radius:9px;padding:10px 12px;outline:0;color:var(--ink);background:#fbfdff}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(23,88,166,.12)}.field textarea{min-height:95px;resize:vertical}.form-card .btn{grid-column:1/-1}.hint{font-size:12px;color:var(--muted)}
.site-footer{background:#102b4c;color:#c3d2e1;padding:54px 0 25px}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:35px}.site-footer .logo{color:#fff;margin-bottom:14px}.site-footer p{font-size:14px;line-height:1.8}.site-footer h3{color:#fff;font-size:15px;margin-bottom:13px}.site-footer a{display:block;color:#b7cce0;font-size:14px;padding:3px 0}.site-footer a:hover{color:#fff}.copyright{border-top:1px solid rgba(255,255,255,.14);margin-top:35px;padding-top:18px;display:flex;gap:18px;justify-content:space-between;flex-wrap:wrap;font-size:12px}.top{position:fixed;right:22px;bottom:22px;width:42px;height:42px;border:0;border-radius:50%;background:var(--cyan);color:#fff;box-shadow:var(--shadow);display:none}.top.show{display:block}
@media(max-width:900px){.nav{display:none;position:absolute;left:20px;right:20px;top:72px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:15px;padding:10px;flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px 15px}.menu-btn{display:block}.hero-grid,.story,.plans,.contact,.faq-wrap{grid-template-columns:1fr;gap:30px}.hero-visual img{height:360px}.service-layout{grid-template-columns:1fr}.side-index{border:0;border-bottom:1px solid var(--line);padding:0 0 12px;display:flex;gap:7px;overflow:auto}.side-index a{white-space:nowrap}.stats{grid-template-columns:repeat(2,1fr)}.stat:nth-child(2){border-right:0}.stat:nth-child(-n+2){border-bottom:1px solid var(--line)}.case-grid,.news-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:576px){.container{width:min(100% - 30px,1200px)}.site-header,.nav-wrap{height:68px}.nav{top:61px}.hero{padding:48px 0 38px}h1{font-size:40px}.hero-copy{font-size:16px}.hero-note{gap:15px}.hero-visual img{height:280px}.visual-panel{left:12px;bottom:15px}.section{padding:62px 0}.section-head{display:block}.section-head h2{margin-bottom:12px}.feature-grid{grid-template-columns:1fr}.stats{grid-template-columns:1fr 1fr}.stat{padding:20px 14px}.stat strong{font-size:28px}.case-small{grid-template-columns:105px 1fr}.case-small img{min-height:150px}.news-item{grid-template-columns:1fr;gap:3px}.news-item .more{text-align:left}.contact{padding:27px 20px}.contact h2{font-size:29px}.form-card{grid-template-columns:1fr;padding:18px}.field.full,.form-card .btn{grid-column:auto}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin:5px 0}}

/* roulang page: category2 */
:root{--blue:#1758a6;--blue2:#0d3d79;--cyan:#27b9b0;--mint:#e8f7f4;--ice:#eef6fc;--warm:#fbfcfe;--ink:#17283d;--muted:#66788e;--line:#dbe6f0;--white:#fff;--radius:18px;--shadow:0 16px 38px rgba(25,67,111,.10);--soft:0 7px 20px rgba(25,67,111,.08)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;color:var(--ink);background:var(--warm);line-height:1.8;font-size:16px}
a{color:var(--blue);text-decoration:none;transition:.25s}
a:hover{color:var(--blue2)}
img{display:block;width:100%;object-fit:cover}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(1200px,calc(100% - 48px));margin:auto}
.site-header{height:80px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.nav-wrap{height:80px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:10px;font-size:23px;font-weight:800;color:var(--blue2);letter-spacing:.02em;white-space:nowrap}
.logo-mark{width:31px;height:31px;border-radius:10px 10px 10px 3px;background:var(--blue);position:relative;transform:rotate(-10deg);display:inline-block}
.logo-mark:after{content:"";position:absolute;width:15px;height:5px;border:2px solid #fff;border-left:0;border-radius:0 8px 8px 0;right:4px;top:11px;transform:rotate(18deg)}
.nav{display:flex;align-items:center;gap:5px}
.nav a{padding:8px 12px;color:#4c6076;font-size:14px;border-radius:10px;position:relative}
.nav a:hover,.nav a.active{color:var(--blue);background:#f0f6fc}
.nav a.active:after{content:"";position:absolute;height:3px;width:22px;background:var(--cyan);bottom:2px;left:50%;transform:translateX(-50%);border-radius:3px}
.nav .nav-cta{background:var(--blue);color:#fff;padding:10px 18px;margin-left:8px}
.nav .nav-cta:hover{background:var(--blue2);color:#fff;transform:translateY(-2px)}
.menu-btn{display:none;background:none;border:0;color:var(--blue2);font-size:26px;min-width:44px;min-height:44px}
.hero{padding:64px 0 48px;background:linear-gradient(115deg,#f5faff 0%,#fff 58%,#edf8f7 100%);overflow:hidden}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:31px}
.breadcrumb a{color:var(--blue)}
.hero-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:58px;align-items:center}
.eyebrow,.tag{display:inline-flex;align-items:center;gap:7px;color:var(--blue);font-size:13px;font-weight:700;letter-spacing:.06em}
.eyebrow:before{content:"";width:25px;height:3px;border-radius:4px;background:var(--cyan)}
h1{font-size:clamp(38px,5vw,62px);line-height:1.2;letter-spacing:-.04em;color:var(--blue2);margin:16px 0 20px}
.hero-copy{font-size:18px;color:var(--muted);max-width:570px;line-height:1.9}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:29px}
.btn{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:10px 22px;border-radius:12px;border:1px solid transparent;font-weight:700;transition:.25s}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(23,88,166,.22)}
.btn-primary:hover{background:var(--blue2);color:#fff;transform:translateY(-2px);box-shadow:0 12px 25px rgba(23,88,166,.28)}
.btn-light{background:#fff;border-color:#b9d0e5;color:var(--blue)}
.btn-light:hover{border-color:var(--blue);background:var(--ice);transform:translateY(-2px)}
.hero-visual{position:relative}
.hero-visual img{height:390px;border-radius:28px;box-shadow:var(--shadow)}
.data-float{position:absolute;right:22px;bottom:22px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:17px 20px;box-shadow:var(--soft);min-width:190px}
.data-float small{color:var(--muted);display:block;font-size:12px}
.data-float strong{font-size:27px;color:var(--blue2);display:block;line-height:1.3}
.section{padding:84px 0}
.section.alt{background:var(--ice)}
.section.mint{background:var(--mint)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:35px}
.section-head h2{font-size:clamp(29px,3.5vw,42px);line-height:1.3;color:var(--blue2);letter-spacing:-.03em}
.section-head p{max-width:590px;color:var(--muted)}
.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.intro-grid img{height:365px;border-radius:22px;box-shadow:var(--soft)}
.prose p{color:var(--muted);margin-bottom:18px}
.prose p:last-child{margin-bottom:0}
.data-band{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--soft);overflow:hidden}
.metric{padding:27px 25px;border-right:1px solid var(--line)}
.metric:last-child{border:0}
.metric strong{display:block;color:var(--blue2);font-size:34px;line-height:1.2}
.metric span{display:block;color:var(--muted);font-size:14px;margin-top:7px}
.metric em{font-style:normal;color:var(--cyan);font-size:12px}
.dual-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.info-panel{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--soft)}
.info-panel img{height:235px}
.info-body{padding:25px 27px}
.info-body h3{font-size:23px;color:var(--blue2);margin-bottom:10px}
.info-body p{color:var(--muted);font-size:15px}
.list-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px 45px;margin-top:29px}
.check-list{list-style:none}
.check-list li{position:relative;padding:13px 0 13px 29px;border-bottom:1px solid var(--line);color:#42566d}
.check-list li:before{content:"";position:absolute;left:0;top:20px;width:14px;height:8px;border-left:3px solid var(--cyan);border-bottom:3px solid var(--cyan);transform:rotate(-45deg)}
.highlight{display:grid;grid-template-columns:.8fr 1.2fr;gap:35px;align-items:center;padding:37px 42px;background:var(--blue2);color:#fff;border-radius:23px}
.highlight h2{font-size:31px;line-height:1.35}
.highlight p{color:#c8d7e8;margin-top:13px}
.highlight .tag{background:rgba(255,255,255,.13);color:#dff8f4;margin-bottom:14px}
.faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:55px}
.faq-intro p{color:var(--muted);margin-top:15px}
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:0 3px}
.faq summary{list-style:none;cursor:pointer;padding:19px 34px 19px 0;font-weight:700;color:var(--blue2);position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"＋";position:absolute;right:4px;color:var(--cyan);font-size:22px;top:15px}
.faq details[open] summary:after{content:"－"}
.faq details p{color:var(--muted);font-size:15px;padding:0 35px 19px 0}
.cta{padding:72px 0;background:#f0f7fc}
.cta-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:43px;align-items:start}
.cta h2{font-size:38px;line-height:1.35;color:var(--blue2)}
.cta-intro p{color:var(--muted);margin:16px 0 20px}
.contact-note{padding:17px 19px;background:#e6f5f3;border-radius:13px;color:#38616b;font-size:14px}
.form-card{background:#fff;border-radius:18px;padding:26px;color:var(--ink);display:grid;grid-template-columns:1fr 1fr;gap:15px;box-shadow:var(--shadow);border:1px solid var(--line)}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13px;font-weight:700;color:var(--blue2)}
.field input,.field select,.field textarea{border:1px solid var(--line);border-radius:9px;padding:10px 12px;outline:0;color:var(--ink);background:#fbfdff;min-height:44px}
.field textarea{min-height:105px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(23,88,166,.12)}
.form-card .field-wide,.form-card .btn{grid-column:1/-1}
.form-message{grid-column:1/-1;color:var(--cyan);font-size:14px;display:none}
.site-footer{background:#102b4c;color:#c3d2e1;padding:54px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:35px}
.site-footer .logo{color:#fff;margin-bottom:14px}
.site-footer p{font-size:14px;line-height:1.8}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:13px}
.site-footer a{display:block;color:#b7cce0;font-size:14px;padding:3px 0}
.site-footer a:hover{color:#fff;padding-left:4px}
.copyright{border-top:1px solid rgba(255,255,255,.16);margin-top:35px;padding-top:20px;display:flex;gap:16px;flex-wrap:wrap;color:#91aac2;font-size:12px}
.top{position:fixed;right:22px;bottom:22px;width:43px;height:43px;border:1px solid var(--line);background:#fff;border-radius:50%;color:var(--blue);box-shadow:var(--soft);opacity:0;pointer-events:none;transition:.25s}
.top.show{opacity:1;pointer-events:auto}
.top:hover{background:var(--blue);color:#fff;transform:translateY(-3px)}
@media(max-width:900px){.nav{gap:0}.nav a{padding:8px 7px;font-size:13px}.hero-grid,.intro-grid,.cta-grid{grid-template-columns:1fr;gap:30px}.hero-visual img{height:330px}.data-band{grid-template-columns:repeat(2,1fr)}.metric:nth-child(2){border-right:0}.metric:nth-child(-n+2){border-bottom:1px solid var(--line)}.faq-wrap{grid-template-columns:1fr;gap:20px}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}}
@media(max-width:700px){.container{width:min(100% - 32px,1200px)}.site-header,.nav-wrap{height:70px}.menu-btn{display:block}.nav{display:none;position:absolute;left:16px;right:16px;top:66px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px 14px}.nav .nav-cta{margin:6px 0 0;text-align:center}.hero{padding:43px 0 35px}h1{font-size:41px}.hero-copy{font-size:16px}.section{padding:60px 0}.section-head{display:block;margin-bottom:25px}.section-head p{margin-top:13px}.dual-grid,.list-grid{grid-template-columns:1fr}.data-band{border-radius:15px}.metric{padding:21px 17px}.metric strong{font-size:28px}.intro-grid img{height:270px}.highlight{grid-template-columns:1fr;padding:28px 25px}.highlight h2{font-size:27px}.form-card{grid-template-columns:1fr}.form-card .field,.form-card .btn{grid-column:1/-1}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-grid>div:first-child{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-bottom:7px}}
@media(max-width:420px){.actions .btn{width:100%}.hero-visual img{height:245px}.data-float{right:10px;bottom:10px;padding:12px 14px;min-width:155px}.data-float strong{font-size:23px}.footer-grid{grid-template-columns:1fr}}

/* roulang page: category3 */
:root{--blue:#1758a6;--blue2:#0d3d79;--cyan:#27b9b0;--mint:#e8f7f4;--ice:#eef6fc;--warm:#fbfcfe;--ink:#17283d;--muted:#66788e;--line:#dbe6f0;--white:#fff;--radius:18px;--shadow:0 16px 38px rgba(25,67,111,.10);--soft:0 7px 20px rgba(25,67,111,.08)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;color:var(--ink);background:var(--warm);line-height:1.8;font-size:16px}
a{color:var(--blue);text-decoration:none;transition:.25s}
a:hover{color:var(--blue2)}
img{display:block;width:100%;object-fit:cover}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(1200px,calc(100% - 48px));margin:auto}
.site-header{height:80px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.nav-wrap{height:80px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:10px;font-size:23px;font-weight:800;color:var(--blue2);letter-spacing:.02em;white-space:nowrap}
.logo-mark{width:31px;height:31px;border-radius:10px 10px 10px 3px;background:var(--blue);position:relative;transform:rotate(-10deg)}
.logo-mark:after{content:"";position:absolute;width:15px;height:5px;border:2px solid #fff;border-left:0;border-radius:0 8px 8px 0;right:4px;top:11px;transform:rotate(18deg)}
.nav{display:flex;align-items:center;gap:5px}
.nav a{padding:8px 12px;color:#4c6076;font-size:14px;border-radius:10px;position:relative}
.nav a:hover,.nav a.active{color:var(--blue);background:#f0f6fc}
.nav a.active:after{content:"";position:absolute;height:3px;width:22px;background:var(--cyan);bottom:2px;left:50%;transform:translateX(-50%);border-radius:3px}
.nav .nav-cta{background:var(--blue);color:#fff;padding:10px 18px;margin-left:8px}
.nav .nav-cta:hover{background:var(--blue2);color:#fff;transform:translateY(-2px)}
.menu-btn{display:none;background:none;border:0;color:var(--blue2);font-size:26px}
.hero-inner{padding:66px 0 52px;background:linear-gradient(115deg,#f5faff 0%,#fff 58%,#edf8f7 100%)}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:24px}
.breadcrumb a{color:var(--blue)}
.hero-title{display:grid;grid-template-columns:1fr 1.05fr;align-items:end;gap:60px}
.eyebrow,.tag{display:inline-flex;align-items:center;gap:7px;color:var(--blue);font-size:13px;font-weight:700}
.eyebrow:before{content:"";width:25px;height:3px;border-radius:4px;background:var(--cyan)}
h1{font-size:clamp(38px,5vw,64px);line-height:1.22;letter-spacing:-.04em;color:var(--blue2);margin:16px 0 20px}
.hero-title p{font-size:18px;color:var(--muted);max-width:590px}
.hero-image{height:330px;border-radius:26px;box-shadow:var(--shadow)}
.section{padding:82px 0}
.section.alt{background:var(--ice)}
.section.mint{background:var(--mint)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
.section-head h2{font-size:clamp(29px,3.5vw,42px);line-height:1.3;color:var(--blue2);letter-spacing:-.03em}
.section-head p{max-width:560px;color:var(--muted)}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.filter-btn{border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:999px;padding:9px 18px;transition:.25s}
.filter-btn:hover,.filter-btn.active{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 7px 15px rgba(23,88,166,.18)}
.case-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:22px}
.case-main,.case-card,.detail-panel{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--soft)}
.case-main{display:grid;grid-template-columns:1.05fr .95fr}
.case-main img{height:100%;min-height:360px}
.case-content{padding:32px}
.case-content h3{font-size:27px;line-height:1.4;color:var(--blue2);margin:14px 0 12px}
.case-content p,.case-card p,.detail-panel p{color:var(--muted);font-size:15px}
.tag{letter-spacing:0;background:#e7f4f8;padding:4px 9px;border-radius:6px;font-size:12px}
.case-content ul{list-style:none;margin:20px 0}
.case-content li{padding:9px 0;border-bottom:1px solid var(--line);color:#4f6277;font-size:14px}
.case-content li:before{content:"✓";color:var(--cyan);font-weight:700;margin-right:9px}
.case-side{display:grid;gap:22px}
.case-card{display:grid;grid-template-columns:125px 1fr;min-height:170px}
.case-card img{height:100%}
.case-card div{padding:20px}
.case-card h3{font-size:20px;color:var(--blue2);margin:8px 0}
.btn{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:10px 22px;border-radius:12px;border:1px solid transparent;font-weight:700;transition:.25s}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(23,88,166,.22)}
.btn-primary:hover{background:var(--blue2);color:#fff;transform:translateY(-2px);box-shadow:0 12px 25px rgba(23,88,166,.28)}
.btn-light{background:#fff;border-color:#b9d0e5;color:var(--blue)}
.btn-light:hover{border-color:var(--blue);background:var(--ice);transform:translateY(-2px)}
.scene-intro{display:grid;grid-template-columns:.8fr 1.2fr;gap:65px;align-items:start}
.scene-intro img{height:420px;border-radius:22px}
.prose p{color:var(--muted);margin-bottom:17px}
.prose h3{color:var(--blue2);font-size:24px;margin:5px 0 13px}
.highlight-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:25px}
.highlight{padding:20px;background:#fff;border:1px solid var(--line);border-radius:15px}
.highlight strong{display:block;color:var(--blue2);font-size:19px;margin-bottom:5px}
.highlight span{color:var(--muted);font-size:14px}
.detail-area{display:grid;grid-template-columns:1fr .85fr;gap:24px}
.detail-panel{padding:30px}
.detail-panel h3{font-size:26px;color:var(--blue2);margin:11px 0}
.detail-panel .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:24px}
.step{background:var(--ice);padding:16px;border-radius:12px}
.step b{display:block;color:var(--blue);font-size:22px}
.step span{font-size:13px;color:var(--muted)}
.info-band{background:var(--blue2);color:#fff;padding:30px 0}
.info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.info-grid div{border-left:1px solid rgba(255,255,255,.25);padding-left:22px}
.info-grid strong{display:block;font-size:31px;line-height:1.2;color:#fff}
.info-grid span{font-size:14px;color:#cbdbea}
.faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:55px}
.faq-wrap>div>p{color:var(--muted);margin-top:16px}
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:17px 0}
.faq summary{cursor:pointer;color:var(--blue2);font-weight:700;list-style:none;padding-right:25px;position:relative}
.faq summary:after{content:"+";position:absolute;right:3px;color:var(--cyan);font-size:22px;top:-3px}
.faq details[open] summary:after{content:"−"}
.faq details p{color:var(--muted);font-size:14px;padding:10px 25px 0 0}
.cta{padding:62px 0;background:var(--mint)}
.cta-box{display:flex;align-items:center;justify-content:space-between;gap:35px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:34px 40px;box-shadow:var(--soft)}
.cta-box h2{font-size:30px;color:var(--blue2);margin-bottom:8px}
.cta-box p{color:var(--muted)}
.site-footer{background:#102b4c;color:#c3d2e1;padding:54px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:35px}
.site-footer .logo{color:#fff;margin-bottom:14px}
.site-footer p{font-size:14px;line-height:1.8}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:13px}
.site-footer a{display:block;color:#b7cce0;font-size:14px;padding:3px 0}
.site-footer a:hover{color:#fff}
.copyright{display:flex;flex-wrap:wrap;gap:12px 24px;border-top:1px solid rgba(255,255,255,.16);margin-top:35px;padding-top:20px;font-size:12px;color:#9fb5cc}
:focus-visible{outline:3px solid rgba(39,185,176,.55);outline-offset:3px}
@media(max-width:900px){.nav{gap:0}.nav a{padding:8px 7px;font-size:13px}.hero-title,.scene-intro,.detail-area{grid-template-columns:1fr;gap:28px}.hero-image{height:300px}.case-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.container{width:min(100% - 32px,600px)}.site-header,.nav-wrap{height:70px}.menu-btn{display:block}.nav{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 16px 18px;box-shadow:var(--soft);flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px 14px}.nav .nav-cta{margin:7px 0 0;text-align:center}.hero-inner{padding:42px 0}.section{padding:58px 0}.case-main{grid-template-columns:1fr}.case-main img{height:235px;min-height:0}.case-card{grid-template-columns:105px 1fr}.scene-intro img{height:280px}.highlight-list,.info-grid{grid-template-columns:repeat(2,1fr)}.info-grid div{padding-left:13px}.info-grid strong{font-size:24px}.cta-box{display:block;padding:27px}.cta-box .btn{margin-top:20px}.faq-wrap{grid-template-columns:1fr;gap:25px}}
@media(max-width:480px){h1{font-size:38px}.hero-title p{font-size:16px}.section-head{display:block}.section-head h2{margin-bottom:10px}.detail-panel .steps{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.filter-btn{padding:8px 13px;font-size:14px}.case-card{grid-template-columns:1fr}.case-card img{height:150px}.copyright{display:block}.copyright span{display:block;margin-bottom:6px}}

/* roulang page: category1 */
:root{--blue:#1758a6;--blue2:#0d3d79;--cyan:#27b9b0;--mint:#e8f7f4;--ice:#eef6fc;--warm:#fbfcfe;--ink:#17283d;--muted:#66788e;--line:#dbe6f0;--white:#fff;--radius:18px;--shadow:0 16px 38px rgba(25,67,111,.10);--soft:0 7px 20px rgba(25,67,111,.08)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;color:var(--ink);background:var(--warm);line-height:1.8;font-size:16px}
a{color:var(--blue);text-decoration:none;transition:.25s}
a:hover{color:var(--blue2)}
img{display:block;width:100%;object-fit:cover}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(1200px,calc(100% - 48px));margin:auto}
.site-header{height:80px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.nav-wrap{height:80px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:10px;font-size:23px;font-weight:800;color:var(--blue2);letter-spacing:.02em;white-space:nowrap}
.logo-mark{width:31px;height:31px;border-radius:10px 10px 10px 3px;background:var(--blue);position:relative;transform:rotate(-10deg)}
.logo-mark:after{content:"";position:absolute;width:15px;height:5px;border:2px solid #fff;border-left:0;border-radius:0 8px 8px 0;right:4px;top:11px;transform:rotate(18deg)}
.nav{display:flex;align-items:center;gap:5px}
.nav a{padding:8px 12px;color:#4c6076;font-size:14px;border-radius:10px;position:relative}
.nav a:hover,.nav a.active{color:var(--blue);background:#f0f6fc}
.nav a.active:after{content:"";position:absolute;height:3px;width:22px;background:var(--cyan);bottom:2px;left:50%;transform:translateX(-50%);border-radius:3px}
.nav .nav-cta{background:var(--blue);color:#fff;padding:10px 18px;margin-left:8px}
.nav .nav-cta:hover{background:var(--blue2);color:#fff;transform:translateY(-2px)}
.menu-btn{display:none;background:none;border:0;color:var(--blue2);font-size:26px}
.page-hero{padding:55px 0 54px;background:linear-gradient(115deg,#f4faff 0%,#fff 65%,#edf8f7 100%)}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:24px}
.breadcrumb a{color:var(--blue)}
.page-hero-grid{display:grid;grid-template-columns:1fr .92fr;gap:55px;align-items:center}
.eyebrow,.tag{display:inline-flex;align-items:center;gap:7px;color:var(--blue);font-size:13px;font-weight:700}
.eyebrow:before{content:"";width:25px;height:3px;border-radius:4px;background:var(--cyan)}
h1{font-size:clamp(40px,5vw,64px);line-height:1.25;letter-spacing:-.04em;color:var(--blue2);margin:13px 0 19px}
.page-lead{font-size:18px;color:var(--muted);max-width:620px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:27px}
.btn{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:10px 22px;border-radius:12px;border:1px solid transparent;font-weight:700;transition:.25s}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(23,88,166,.22)}
.btn-primary:hover{background:var(--blue2);color:#fff;transform:translateY(-2px);box-shadow:0 12px 25px rgba(23,88,166,.28)}
.btn-light{background:#fff;border-color:#b9d0e5;color:var(--blue)}
.btn-light:hover{border-color:var(--blue);background:var(--ice);transform:translateY(-2px)}
.hero-image{position:relative}
.hero-image img{height:345px;border-radius:25px;box-shadow:var(--shadow)}
.live-card{position:absolute;right:-18px;bottom:20px;background:#fff;padding:18px 20px;border-radius:15px;box-shadow:var(--shadow);min-width:190px}
.live-card small{display:block;color:var(--muted);font-size:12px}
.live-card strong{display:block;color:var(--blue2);font-size:27px;line-height:1.3}
.live-dot{display:inline-block;width:8px;height:8px;background:var(--cyan);border-radius:50%;margin-right:6px}
.section{padding:84px 0}
.section.alt{background:var(--ice)}
.section.mint{background:var(--mint)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:35px}
.section-head h2{font-size:clamp(29px,3.5vw,42px);line-height:1.3;color:var(--blue2);letter-spacing:-.03em}
.section-head p{max-width:570px;color:var(--muted)}
.content-layout{display:grid;grid-template-columns:240px 1fr;gap:50px;align-items:start}
.side-index{position:sticky;top:105px}
.side-index h3{font-size:16px;color:var(--blue2);padding:0 16px 15px}
.side-index a{display:block;padding:14px 16px;color:var(--muted);border-radius:11px;margin-bottom:7px}
.side-index a:first-of-type,.side-index a:hover{background:#fff;color:var(--blue);box-shadow:var(--soft);font-weight:700}
.article{background:#fff;border:1px solid var(--line);border-radius:22px;padding:35px 42px;box-shadow:var(--soft)}
.article h2{font-size:29px;color:var(--blue2);line-height:1.4;margin-bottom:17px}
.article h3{font-size:21px;color:var(--blue2);margin:29px 0 9px}
.article p{color:#4f6378;margin-bottom:15px}
.article img{height:270px;border-radius:15px;margin:24px 0}
.info-strip{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:19px;box-shadow:var(--soft);overflow:hidden}
.info-cell{padding:25px 23px;border-right:1px solid var(--line)}
.info-cell:last-child{border:0}
.info-cell strong{font-size:30px;color:var(--blue2);display:block;line-height:1.2}
.info-cell span{font-size:14px;color:var(--muted)}
.schedule{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;margin-top:28px}
.schedule-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:25px;box-shadow:var(--soft)}
.schedule-card h3{font-size:21px;color:var(--blue2);margin:12px 0 6px}
.schedule-card p{color:var(--muted);font-size:14px}
.schedule-row{display:flex;justify-content:space-between;gap:15px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14px}
.schedule-row:last-child{border:0}
.schedule-row b{color:var(--blue2)}
.tag{letter-spacing:0;background:#e7f4f8;padding:4px 9px;border-radius:6px;font-size:12px}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin-top:20px}
.check-list li{list-style:none;background:#f6faff;border:1px solid var(--line);border-radius:11px;padding:13px 15px;color:#52677c}
.check-list li:before{content:"✓";color:var(--cyan);font-weight:800;margin-right:8px}
.timeline{border-left:2px solid #bcd6eb;margin:12px 0 0 12px;padding-left:28px}
.step{position:relative;padding:4px 0 27px}
.step:before{content:"";position:absolute;left:-37px;top:11px;width:14px;height:14px;border-radius:50%;background:var(--cyan);border:4px solid var(--mint)}
.step h3{font-size:19px;color:var(--blue2);margin-bottom:5px}
.step p{font-size:14px;color:var(--muted)}
.faq-wrap{display:grid;grid-template-columns:.72fr 1.28fr;gap:55px}
.faq-wrap>div>p{color:var(--muted);margin-top:16px}
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-question{width:100%;display:flex;justify-content:space-between;gap:20px;text-align:left;padding:19px 0;background:none;border:0;color:var(--blue2);font-weight:700}
.faq-question span:last-child{font-size:22px;color:var(--cyan);transition:.25s}
.faq-answer{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .3s ease;padding-right:35px}
.faq-item.open .faq-answer{max-height:150px;padding-bottom:17px}
.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
.cta{background:var(--blue2);color:#d9e7f4;padding:55px 0}
.cta-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:45px;align-items:start}
.cta h2{color:#fff;font-size:34px;line-height:1.4;margin-bottom:13px}
.cta p{color:#c1d3e4}
.form-card{background:#fff;border-radius:17px;padding:25px;color:var(--ink);display:grid;grid-template-columns:1fr 1fr;gap:15px;box-shadow:var(--shadow)}
.field{display:flex;flex-direction:column;gap:5px}
.field label{font-size:13px;font-weight:700;color:var(--blue2)}
.field input,.field select,.field textarea{border:1px solid var(--line);border-radius:9px;padding:10px 12px;outline:0;color:var(--ink);background:#fbfdff;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(23,88,166,.12)}
.field textarea{min-height:95px;resize:vertical}
.field.full,.form-card .btn{grid-column:1/-1}
.form-tip{font-size:12px;color:var(--muted);grid-column:1/-1}
.site-footer{background:#102b4c;color:#c3d2e1;padding:54px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:35px}
.site-footer .logo{color:#fff;margin-bottom:14px}
.site-footer p{font-size:14px;line-height:1.8}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:13px}
.site-footer a{display:block;color:#b7cce0;font-size:14px;padding:3px 0}
.site-footer a:hover{color:#fff}
.copyright{border-top:1px solid rgba(255,255,255,.16);margin-top:35px;padding-top:19px;display:flex;flex-wrap:wrap;gap:12px 25px;color:#9fb5c9;font-size:12px}
.back-top{position:fixed;right:22px;bottom:22px;width:42px;height:42px;border:0;border-radius:12px;background:var(--blue);color:#fff;box-shadow:var(--soft);opacity:0;pointer-events:none;transition:.25s}
.back-top.show{opacity:1;pointer-events:auto}
:focus-visible{outline:3px solid rgba(39,185,176,.55);outline-offset:3px}
@media(max-width:980px){.nav{gap:0}.nav a{padding:8px 7px;font-size:13px}.page-hero-grid{gap:30px}.content-layout{grid-template-columns:190px 1fr;gap:25px}.footer-grid{grid-template-columns:1fr 1fr}.info-cell{padding:20px 14px}}
@media(max-width:768px){.container{width:min(100% - 32px,620px)}.site-header,.nav-wrap{height:70px}.menu-btn{display:block}.nav{display:none;position:absolute;left:16px;right:16px;top:63px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px 14px}.nav .nav-cta{margin:6px 0 0;text-align:center}.page-hero{padding:38px 0}.page-hero-grid,.schedule,.cta-grid{grid-template-columns:1fr}.hero-image img{height:280px}.live-card{right:12px}.section{padding:60px 0}.section-head{display:block;margin-bottom:25px}.section-head p{margin-top:12px}.content-layout{display:block}.side-index{position:static;display:flex;gap:7px;overflow:auto;margin-bottom:20px}.side-index h3{display:none}.side-index a{white-space:nowrap;padding:9px 13px;margin:0}.article{padding:24px 20px}.info-strip{grid-template-columns:1fr 1fr}.info-cell:nth-child(2){border-right:0}.info-cell:nth-child(-n+2){border-bottom:1px solid var(--line)}.check-list{grid-template-columns:1fr}.faq-wrap{grid-template-columns:1fr;gap:25px}.cta{padding:48px 0}.form-card{grid-template-columns:1fr}.field.full,.form-card .btn{grid-column:auto}}
@media(max-width:520px){h1{font-size:38px}.page-lead{font-size:16px}.hero-actions .btn{width:100%}.hero-image img{height:235px}.article h2{font-size:25px}.info-cell strong{font-size:25px}.footer-grid{grid-template-columns:1fr;gap:24px}.copyright{display:block}.copyright span{display:block;margin-bottom:7px}}

/* roulang page: category5 */
:root{
--blue:#1758a6;--blue2:#0d3d79;--cyan:#27b9b0;--mint:#e8f7f4;
--ice:#eef6fc;--warm:#fbfcfe;--ink:#17283d;--muted:#66788e;
--line:#dbe6f0;--white:#fff;--radius:18px;
--shadow:0 16px 38px rgba(25,67,111,.10);--soft:0 7px 20px rgba(25,67,111,.08)
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;color:var(--ink);background:var(--warm);line-height:1.8;font-size:16px}
a{color:var(--blue);text-decoration:none;transition:.25s}
a:hover{color:var(--blue2)}
a:focus,button:focus,input:focus,textarea:focus,select:focus{outline:3px solid rgba(39,185,176,.28);outline-offset:2px}
img{display:block;width:100%;object-fit:cover}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(1200px,calc(100% - 48px));margin:auto}
.site-header{height:80px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.nav-wrap{height:80px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:10px;font-size:23px;font-weight:800;color:var(--blue2);letter-spacing:.02em;white-space:nowrap}
.logo-mark{width:31px;height:31px;border-radius:10px 10px 10px 3px;background:var(--blue);position:relative;transform:rotate(-10deg)}
.logo-mark:after{content:"";position:absolute;width:15px;height:5px;border:2px solid #fff;border-left:0;border-radius:0 8px 8px 0;right:4px;top:11px;transform:rotate(18deg)}
.nav{display:flex;align-items:center;gap:5px}
.nav a{padding:8px 12px;color:#4c6076;font-size:14px;border-radius:10px;position:relative}
.nav a:hover,.nav a.active{color:var(--blue);background:#f0f6fc}
.nav a.active:after{content:"";position:absolute;height:3px;width:22px;background:var(--cyan);bottom:2px;left:50%;transform:translateX(-50%);border-radius:3px}
.nav .nav-cta{background:var(--blue);color:#fff;padding:10px 18px;margin-left:8px}
.nav .nav-cta:hover{background:var(--blue2);color:#fff;transform:translateY(-2px)}
.menu-btn{display:none;background:none;border:0;color:var(--blue2);font-size:26px;line-height:1}
.hero{padding:76px 0 68px;background:linear-gradient(115deg,#f5faff 0%,#fff 58%,#edf8f7 100%)}
.hero-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:58px;align-items:center}
.eyebrow,.tag{display:inline-flex;align-items:center;gap:7px;color:var(--blue);font-size:13px;font-weight:700;letter-spacing:.08em}
.eyebrow:before{content:"";width:25px;height:3px;border-radius:4px;background:var(--cyan)}
h1{font-size:clamp(40px,5vw,62px);line-height:1.22;letter-spacing:-.045em;color:var(--blue2);margin:17px 0 20px}
.hero-copy{font-size:18px;color:var(--muted);max-width:560px;line-height:1.9}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:29px}
.btn{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:10px 22px;border-radius:12px;border:1px solid transparent;font-weight:700;transition:.25s}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(23,88,166,.22)}
.btn-primary:hover{background:var(--blue2);color:#fff;transform:translateY(-2px);box-shadow:0 12px 25px rgba(23,88,166,.28)}
.btn-light{background:#fff;border-color:#b9d0e5;color:var(--blue)}
.btn-light:hover{border-color:var(--blue);background:var(--ice);transform:translateY(-2px)}
.hero-note{display:flex;gap:28px;margin-top:30px;color:var(--muted);font-size:13px}
.hero-note strong{display:block;color:var(--blue2);font-size:22px;line-height:1.2}
.hero-visual{position:relative}
.hero-visual img{height:390px;border-radius:28px;box-shadow:var(--shadow)}
.visual-caption{position:absolute;left:-28px;bottom:24px;background:#fff;padding:15px 20px;border-radius:14px;box-shadow:var(--soft);border:1px solid var(--line);max-width:235px}
.visual-caption b{display:block;color:var(--blue2);font-size:17px}
.visual-caption span{font-size:13px;color:var(--muted)}
.section{padding:86px 0}
.section.alt{background:var(--ice)}
.section.mint{background:var(--mint)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
.section-head h2{font-size:clamp(29px,3.5vw,42px);line-height:1.3;color:var(--blue2);letter-spacing:-.03em}
.section-head p{max-width:590px;color:var(--muted)}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:20px}
.breadcrumb a{color:var(--blue)}
.news-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;align-items:start}
.news-list{background:#fff;border:1px solid var(--line);border-radius:18px;padding:7px 28px;box-shadow:var(--soft)}
.news-item{display:grid;grid-template-columns:96px 1fr 92px;gap:22px;align-items:center;padding:24px 0;border-bottom:1px solid var(--line)}
.news-item:last-child{border:0}
.news-date{font-size:14px;color:var(--blue);font-weight:700}
.news-item h3{font-size:19px;color:var(--blue2);margin-bottom:4px;line-height:1.45}
.news-item p{font-size:14px;color:var(--muted);line-height:1.75}
.more{text-align:right;font-size:13px;white-space:nowrap}
.more:after{content:" →";transition:.2s}
.more:hover:after{padding-left:4px}
.tag{letter-spacing:0;background:#e7f4f8;padding:4px 9px;border-radius:6px;font-size:12px;margin-bottom:8px}
.sidebar{display:grid;gap:18px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:23px;box-shadow:var(--soft)}
.side-card h3{color:var(--blue2);font-size:20px;margin-bottom:14px}
.side-card p{color:var(--muted);font-size:14px;line-height:1.8}
.hot-list{list-style:none}
.hot-list li{border-top:1px solid var(--line);padding:12px 0}
.hot-list a{display:block;color:var(--ink);font-size:14px;line-height:1.6}
.hot-list a:hover{color:var(--blue)}
.hot-list small{display:block;color:#8a9aac;margin-top:4px}
.cover-card{overflow:hidden;border-radius:16px;border:1px solid var(--line);background:#fff}
.cover-card img{height:185px}
.cover-card div{padding:18px}
.cover-card h3{color:var(--blue2);font-size:20px;margin-bottom:7px}
.cover-card p{color:var(--muted);font-size:14px}
.pagination{display:flex;gap:8px;margin-top:25px;align-items:center}
.pagination a,.pagination span{min-width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--muted);font-size:14px}
.pagination a:hover,.pagination .current{background:var(--blue);border-color:var(--blue);color:#fff}
.topic{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center}
.topic img{height:340px;border-radius:22px;box-shadow:var(--shadow)}
.topic h2{font-size:34px;color:var(--blue2);line-height:1.35;margin:13px 0}
.topic p{color:var(--muted);margin-bottom:16px}
.check-list{list-style:none;margin-top:18px}
.check-list li{padding:9px 0;border-bottom:1px solid var(--line);color:#41566d}
.check-list li:before{content:"✓";color:var(--cyan);font-weight:800;margin-right:10px}
.cta{background:var(--blue2);color:#fff;padding:62px 0}
.cta-wrap{display:flex;align-items:center;justify-content:space-between;gap:30px}
.cta h2{font-size:32px;line-height:1.35;margin-bottom:10px}
.cta p{color:#c6d8ea;max-width:680px}
.cta .btn-light{border:0;background:#fff}
.site-footer{background:#102b4c;color:#c3d2e1;padding:54px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:35px}
.site-footer .logo{color:#fff;margin-bottom:14px}
.site-footer p{font-size:14px;line-height:1.8}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:13px}
.site-footer a{display:block;color:#b7cce0;font-size:14px;padding:3px 0}
.site-footer a:hover{color:#fff}
.copyright{border-top:1px solid rgba(255,255,255,.16);margin-top:35px;padding-top:20px;display:flex;flex-wrap:wrap;gap:12px 25px;font-size:12px;color:#9fb5ca}
.back-top{position:fixed;right:22px;bottom:22px;width:42px;height:42px;border:1px solid var(--line);border-radius:50%;background:#fff;color:var(--blue);box-shadow:var(--soft);opacity:0;pointer-events:none;transition:.25s}
.back-top.show{opacity:1;pointer-events:auto}
@media(max-width:960px){
.nav{gap:0}.nav a{padding-left:8px;padding-right:8px}.nav .nav-cta{padding:9px 12px}
.news-layout{grid-template-columns:1fr}.sidebar{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
.container{width:min(100% - 34px,600px)}
.site-header,.nav-wrap{height:70px}
.menu-btn{display:block}
.nav{display:none;position:absolute;top:70px;left:0;right:0;padding:12px 17px 20px;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--soft);flex-direction:column;align-items:stretch}
.nav.open{display:flex}.nav a{padding:12px 14px}.nav .nav-cta{margin:8px 0 0;text-align:center}
.hero{padding:55px 0}.hero-grid,.topic{grid-template-columns:1fr;gap:30px}
.hero-visual img{height:300px}.visual-caption{left:15px;bottom:15px}
.section{padding:62px 0}.section-head{display:block;margin-bottom:25px}.section-head p{margin-top:12px}
.news-list{padding:5px 18px}.news-item{grid-template-columns:1fr;gap:4px;padding:20px 0}.more{text-align:left;margin-top:7px}
.sidebar{grid-template-columns:1fr}.topic img{height:260px}.cta-wrap{display:block}.cta .btn{margin-top:24px}
.footer-grid{grid-template-columns:1fr 1fr;gap:27px}
}
@media(max-width:520px){
h1{font-size:38px}.hero-copy{font-size:16px}.hero-note{gap:17px}.hero-note strong{font-size:19px}
.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-bottom:7px}
}

/* roulang page: category4 */
:root{--blue:#1758a6;--blue2:#0d3d79;--cyan:#27b9b0;--mint:#e8f7f4;--ice:#eef6fc;--warm:#fbfcfe;--ink:#17283d;--muted:#66788e;--line:#dbe6f0;--white:#fff;--radius:18px;--shadow:0 16px 38px rgba(25,67,111,.10);--soft:0 7px 20px rgba(25,67,111,.08)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;color:var(--ink);background:var(--warm);line-height:1.8;font-size:16px}
a{color:var(--blue);text-decoration:none;transition:.25s}
a:hover{color:var(--blue2)}
img{display:block;width:100%;object-fit:cover}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(1200px,calc(100% - 48px));margin:auto}
.site-header{height:80px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.nav-wrap{height:80px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:10px;font-size:23px;font-weight:800;color:var(--blue2);letter-spacing:.02em;white-space:nowrap}
.logo-mark{width:31px;height:31px;border-radius:10px 10px 10px 3px;background:var(--blue);position:relative;transform:rotate(-10deg)}
.logo-mark:after{content:"";position:absolute;width:15px;height:5px;border:2px solid #fff;border-left:0;border-radius:0 8px 8px 0;right:4px;top:11px;transform:rotate(18deg)}
.nav{display:flex;align-items:center;gap:5px}
.nav a{padding:8px 12px;color:#4c6076;font-size:14px;border-radius:10px;position:relative}
.nav a:hover,.nav a.active{color:var(--blue);background:#f0f6fc}
.nav a.active:after{content:"";position:absolute;height:3px;width:22px;background:var(--cyan);bottom:2px;left:50%;transform:translateX(-50%);border-radius:3px}
.nav .nav-cta{background:var(--blue);color:#fff;padding:10px 18px;margin-left:8px}
.nav .nav-cta:hover{background:var(--blue2);color:#fff;transform:translateY(-2px)}
.menu-btn{display:none;background:none;border:0;color:var(--blue2);font-size:26px}
.hero{position:relative;min-height:560px;padding:76px 0 72px;color:#fff;background:#102b4c url('/assets/images/backpic/back-2.webp') center/cover no-repeat;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,27,54,.95),rgba(10,42,79,.72) 52%,rgba(10,30,56,.4))}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:64px;align-items:center}
.eyebrow,.tag{display:inline-flex;align-items:center;gap:7px;color:var(--cyan);font-size:13px;font-weight:700;letter-spacing:.08em}
.eyebrow:before{content:"";width:25px;height:3px;border-radius:4px;background:var(--cyan)}
.hero h1{font-size:clamp(42px,5.2vw,68px);line-height:1.2;letter-spacing:-.04em;margin:18px 0 22px}
.hero-copy{font-size:18px;color:#d9e7f4;max-width:570px;line-height:1.9}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:31px}
.btn{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:10px 22px;border-radius:12px;border:1px solid transparent;font-weight:700;transition:.25s}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(23,88,166,.22)}
.btn-primary:hover{background:#2a6fc0;color:#fff;transform:translateY(-2px)}
.btn-light{background:#fff;border-color:#b9d0e5;color:var(--blue)}
.btn-light:hover{border-color:var(--cyan);background:var(--mint);transform:translateY(-2px)}
.hero .btn-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.hero .btn-light:hover{background:rgba(255,255,255,.12);color:#fff}
.hero-panel{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);border-radius:24px;padding:15px;box-shadow:0 20px 55px rgba(0,0,0,.2)}
.hero-panel img{height:350px;border-radius:17px}
.poster-info{display:flex;justify-content:space-between;align-items:center;padding:17px 5px 3px;color:#fff}
.poster-info strong{font-size:20px}
.hot{background:var(--cyan);color:#073b4a;border-radius:20px;padding:5px 12px;font-size:12px;font-weight:800}
.hero-note{display:flex;gap:32px;margin-top:35px;color:#c8d8e8;font-size:13px}
.hero-note strong{display:block;color:#fff;font-size:22px;line-height:1.2}
.section{padding:88px 0}
.section.alt{background:var(--ice)}
.section.mint{background:var(--mint)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:38px}
.section-head h2{font-size:clamp(29px,3.5vw,42px);line-height:1.3;color:var(--blue2);letter-spacing:-.03em}
.section-head p{max-width:570px;color:var(--muted)}
.breadcrumb{padding:22px 0 0;color:var(--muted);font-size:13px}
.breadcrumb a{color:var(--blue)}
.process-layout{display:grid;grid-template-columns:280px 1fr;gap:58px}
.side-index{position:sticky;top:108px;align-self:start}
.side-index h3{font-size:17px;color:var(--blue2);margin-bottom:14px}
.side-index a{display:block;padding:14px 16px;color:var(--muted);border-radius:11px;margin-bottom:7px}
.side-index a:first-of-type,.side-index a:hover{background:#fff;color:var(--blue);box-shadow:var(--soft);font-weight:700}
.content-copy{max-width:760px}
.content-copy h2{font-size:32px;color:var(--blue2);line-height:1.35;margin-bottom:17px}
.content-copy h3{font-size:22px;color:var(--blue2);margin:30px 0 8px}
.content-copy p{color:var(--muted);margin-bottom:17px}
.flow{position:relative;margin-top:34px;padding-left:40px}
.flow:before{content:"";position:absolute;left:12px;top:10px;bottom:10px;width:2px;background:#b9d5e8}
.flow-item{position:relative;padding:0 0 31px 26px}
.flow-item:before{content:attr(data-step);position:absolute;left:-40px;top:-3px;width:27px;height:27px;border-radius:50%;display:grid;place-items:center;background:var(--blue);color:#fff;font-size:12px;font-weight:800;box-shadow:0 0 0 5px var(--ice)}
.flow-item h3{margin:0 0 5px;color:var(--blue2);font-size:20px}
.flow-item p{color:var(--muted);font-size:15px}
.data-band{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--soft);overflow:hidden}
.data-point{padding:26px 25px;border-right:1px solid var(--line)}
.data-point:last-child{border:0}
.data-point strong{display:block;font-size:34px;color:var(--blue2);line-height:1.2}
.data-point span{font-size:14px;color:var(--muted)}
.compare{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
.compare-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:25px;box-shadow:var(--soft)}
.compare-card.featured{border:2px solid var(--cyan);padding:24px;position:relative}
.compare-card.featured:before{content:"适合复杂需求";position:absolute;right:18px;top:18px;background:var(--mint);color:#087d78;border-radius:20px;padding:4px 10px;font-size:12px}
.compare-card h3{font-size:21px;color:var(--blue2);margin-bottom:7px}
.compare-card p{font-size:14px;color:var(--muted);min-height:76px}
.compare-card ul{list-style:none;border-top:1px solid var(--line);margin-top:17px;padding-top:12px}
.compare-card li{padding:7px 0;color:#53687d;font-size:14px}
.compare-card li:before{content:"✓";color:var(--cyan);font-weight:bold;margin-right:9px}
.faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:55px}
.faq-layout>div>p{color:var(--muted);margin-top:16px}
.faq{border-top:1px solid var(--line)}
details{border-bottom:1px solid var(--line);padding:18px 0}
summary{cursor:pointer;list-style:none;font-weight:700;color:var(--blue2);padding-right:28px;position:relative}
summary::-webkit-details-marker{display:none}
summary:after{content:"＋";position:absolute;right:2px;color:var(--cyan);font-size:22px;top:-4px}
details[open] summary:after{content:"−"}
details p{color:var(--muted);font-size:14px;padding:12px 28px 3px 0}
.cta{background:var(--blue2);color:#fff;padding:72px 0}
.cta-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:start}
.cta h2{font-size:38px;line-height:1.35;margin-bottom:13px}
.cta p{color:#c9d9e8}
.form-card{background:#fff;border-radius:17px;padding:25px;color:var(--ink);display:grid;grid-template-columns:1fr 1fr;gap:15px;box-shadow:var(--shadow)}
.field{display:flex;flex-direction:column;gap:5px}
.field label{font-size:13px;font-weight:700;color:var(--blue2)}
.field input,.field select,.field textarea{border:1px solid var(--line);border-radius:9px;padding:10px 12px;outline:0;color:var(--ink);background:#fbfdff}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(23,88,166,.12)}
.field textarea{min-height:95px;resize:vertical}
.field.full{grid-column:1/-1}
.form-card .btn{grid-column:1/-1;border:0}
.related{display:flex;gap:12px;flex-wrap:wrap}
.related a{background:#fff;border:1px solid var(--line);padding:13px 18px;border-radius:12px;box-shadow:var(--soft);font-weight:700}
.related a:hover{transform:translateY(-2px);border-color:var(--cyan)}
.site-footer{background:#102b4c;color:#c3d2e1;padding:54px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:35px}
.site-footer .logo{color:#fff;margin-bottom:14px}
.site-footer p{font-size:14px;line-height:1.8}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:13px}
.site-footer a{display:block;color:#b7cce0;font-size:14px;padding:3px 0}
.site-footer a:hover{color:#fff}
.copyright{display:flex;flex-wrap:wrap;gap:12px 24px;border-top:1px solid rgba(255,255,255,.16);margin-top:35px;padding-top:18px;font-size:12px;color:#91aac1}
.top{position:fixed;right:22px;bottom:22px;width:44px;height:44px;border:0;border-radius:50%;background:var(--blue);color:#fff;box-shadow:var(--soft);display:none;z-index:10}
.top.show{display:block}
:focus-visible{outline:3px solid rgba(39,185,176,.55);outline-offset:3px}
@media(max-width:900px){
 .nav{gap:0}.nav a{padding:8px 7px;font-size:13px}.nav .nav-cta{padding:9px 12px}
 .hero-grid,.cta-grid{grid-template-columns:1fr;gap:35px}.hero-panel{max-width:680px}
 .process-layout{grid-template-columns:1fr;gap:25px}.side-index{position:static;display:flex;gap:8px;overflow:auto}.side-index h3{display:none}.side-index a{white-space:nowrap;margin:0}
 .faq-layout{grid-template-columns:1fr;gap:25px}.footer-grid{grid-template-columns:2fr 1fr 1fr}
}
@media(max-width:700px){
 .container{width:min(100% - 32px,600px)}.site-header,.nav-wrap{height:68px}
 .menu-btn{display:block}.nav{display:none;position:absolute;left:16px;right:16px;top:76px;background:#fff;padding:12px;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
 .nav.open{display:flex}.nav a{padding:12px 14px}.nav a.active:after{left:14px;transform:none}.nav .nav-cta{margin:7px 0 0;text-align:center}
 .hero{padding:58px 0}.hero h1{font-size:42px}.hero-panel img{height:260px}.hero-note{gap:20px}
 .section{padding:62px 0}.section-head{display:block;margin-bottom:25px}.section-head p{margin-top:12px}
 .data-band{grid-template-columns:1fr 1fr}.data-point:nth-child(2){border-right:0}.data-point:nth-child(-n+2){border-bottom:1px solid var(--line)}.data-point strong{font-size:28px}
 .compare{grid-template-columns:1fr}.compare-card p{min-height:0}.form-card{grid-template-columns:1fr}.field.full,.form-card .btn{grid-column:auto}
 .footer-grid{grid-template-columns:1fr 1fr;gap:25px}.copyright{display:block}.copyright span{display:block;margin-bottom:6px}
}
@media(max-width:480px){.logo{font-size:20px}.hero h1{font-size:36px}.hero-copy{font-size:16px}.actions .btn{width:100%}.footer-grid{grid-template-columns:1fr}.data-point{padding:20px 15px}}

/* roulang page: category6 */
:root{--blue:#1758a6;--blue2:#0d3d79;--cyan:#27b9b0;--mint:#e8f7f4;--ice:#eef6fc;--warm:#fbfcfe;--ink:#17283d;--muted:#66788e;--line:#dbe6f0;--white:#fff;--radius:18px;--shadow:0 16px 38px rgba(25,67,111,.10);--soft:0 7px 20px rgba(25,67,111,.08)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;color:var(--ink);background:var(--warm);line-height:1.8;font-size:16px}
a{color:var(--blue);text-decoration:none;transition:.25s}
a:hover{color:var(--blue2)}
img{display:block;width:100%;object-fit:cover}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(1200px,calc(100% - 48px));margin:auto}
.site-header{height:80px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.nav-wrap{height:80px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:10px;font-size:23px;font-weight:800;color:var(--blue2);letter-spacing:.02em;white-space:nowrap}
.logo-mark{width:31px;height:31px;border-radius:10px 10px 10px 3px;background:var(--blue);position:relative;transform:rotate(-10deg)}
.logo-mark:after{content:"";position:absolute;width:15px;height:5px;border:2px solid #fff;border-left:0;border-radius:0 8px 8px 0;right:4px;top:11px;transform:rotate(18deg)}
.nav{display:flex;align-items:center;gap:5px}
.nav a{padding:8px 12px;color:#4c6076;font-size:14px;border-radius:10px;position:relative}
.nav a:hover,.nav a.active{color:var(--blue);background:#f0f6fc}
.nav a.active:after{content:"";position:absolute;height:3px;width:22px;background:var(--cyan);bottom:2px;left:50%;transform:translateX(-50%);border-radius:3px}
.nav .nav-cta{background:var(--blue);color:#fff;padding:10px 18px;margin-left:8px}
.nav .nav-cta:hover{background:var(--blue2);color:#fff;transform:translateY(-2px)}
.menu-btn{display:none;background:none;border:0;color:var(--blue2);font-size:26px}
.hero{padding:72px 0 65px;background:linear-gradient(115deg,#f5faff 0%,#fff 58%,#edf8f7 100%);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr 1.08fr;gap:62px;align-items:center}
.eyebrow,.tag{display:inline-flex;align-items:center;gap:7px;color:var(--blue);font-size:13px;font-weight:700;letter-spacing:.08em}
.eyebrow:before{content:"";width:25px;height:3px;border-radius:4px;background:var(--cyan)}
h1{font-size:clamp(40px,5vw,62px);line-height:1.22;letter-spacing:-.045em;color:var(--blue2);margin:17px 0 22px}
.hero-copy{font-size:18px;color:var(--muted);max-width:590px;line-height:1.9}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:29px}
.btn{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:10px 22px;border-radius:12px;border:1px solid transparent;font-weight:700;transition:.25s}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(23,88,166,.22)}
.btn-primary:hover{background:var(--blue2);color:#fff;transform:translateY(-2px);box-shadow:0 12px 25px rgba(23,88,166,.28)}
.btn-light{background:#fff;border-color:#b9d0e5;color:var(--blue)}
.btn-light:hover{border-color:var(--blue);background:var(--ice);transform:translateY(-2px)}
.hero-note{display:flex;gap:25px;margin-top:31px;color:var(--muted);font-size:13px}
.hero-note strong{display:block;color:var(--blue2);font-size:22px;line-height:1.2}
.hero-visual{position:relative}
.hero-visual img{height:410px;border-radius:28px;box-shadow:var(--shadow)}
.visual-card{position:absolute;right:-20px;bottom:24px;background:#fff;padding:18px 20px;border-radius:15px;box-shadow:var(--shadow);width:220px}
.visual-card b{display:block;color:var(--blue2);font-size:19px;margin-bottom:4px}
.visual-card span{color:var(--muted);font-size:13px}
.section{padding:86px 0}
.section.alt{background:var(--ice)}
.section.mint{background:var(--mint)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:36px}
.section-head h2{font-size:clamp(29px,3.5vw,42px);line-height:1.3;color:var(--blue2);letter-spacing:-.03em}
.section-head p{max-width:570px;color:var(--muted)}
.breadcrumb{padding:24px 0 0;color:var(--muted);font-size:14px}
.breadcrumb a{color:var(--blue)}
.selector-layout{display:grid;grid-template-columns:280px 1fr;gap:28px;align-items:start}
.scenario-nav{background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--soft);position:sticky;top:105px}
.scenario-nav button{display:block;width:100%;text-align:left;border:0;background:transparent;padding:16px;border-radius:12px;color:var(--muted);transition:.25s}
.scenario-nav button:hover,.scenario-nav button.active{background:#edf6fd;color:var(--blue2);font-weight:700}
.scenario-nav button.active{border-left:4px solid var(--cyan);padding-left:12px}
.detail-panel{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);overflow:hidden}
.detail-panel img{height:270px}
.detail-body{padding:30px 34px}
.detail-body h2{color:var(--blue2);font-size:30px;line-height:1.35;margin:11px 0 13px}
.detail-body p{color:var(--muted);max-width:720px}
.detail-meta{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}
.tag{letter-spacing:0;background:#e7f4f8;padding:4px 10px;border-radius:6px;font-size:12px}
.detail-columns{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px;padding-top:22px;border-top:1px solid var(--line)}
.detail-columns h3{color:var(--blue2);font-size:17px;margin-bottom:8px}
.detail-columns ul{list-style:none;color:var(--muted);font-size:14px}
.detail-columns li{padding:6px 0 6px 18px;position:relative}
.detail-columns li:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan);position:absolute;left:0;top:15px}
.intro-grid{display:grid;grid-template-columns:.88fr 1.12fr;gap:58px;align-items:center}
.intro-grid img{height:360px;border-radius:22px}
.intro-copy h2{color:var(--blue2);font-size:34px;line-height:1.35;margin:13px 0 18px}
.intro-copy p{color:var(--muted);margin-bottom:15px}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:10px 20px;margin-top:22px}
.check-list li{list-style:none;color:var(--ink);font-size:14px;padding-left:24px;position:relative}
.check-list li:before{content:"✓";position:absolute;left:0;color:var(--cyan);font-weight:800}
.compare{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--soft)}
.compare-row{display:grid;grid-template-columns:1.1fr 1fr 1fr 1fr;border-bottom:1px solid var(--line)}
.compare-row:last-child{border-bottom:0}
.compare-row>*{padding:17px 18px;border-right:1px solid var(--line);font-size:14px}
.compare-row>*:last-child{border-right:0}
.compare-row.head{background:var(--blue2);color:#fff}
.compare-row strong{color:var(--blue2)}
.compare-row.head strong{color:#fff}
.note-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--soft);margin-top:25px}
.note-strip div{padding:25px;border-right:1px solid var(--line)}
.note-strip div:last-child{border:0}
.note-strip b{display:block;color:var(--blue2);font-size:25px;margin-bottom:4px}
.note-strip span{font-size:14px;color:var(--muted)}
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;counter-reset:step}
.process article{background:#fff;border:1px solid var(--line);border-radius:15px;padding:22px;position:relative}
.process article:before{counter-increment:step;content:"0" counter(step);color:var(--cyan);font-size:25px;font-weight:800}
.process h3{font-size:18px;color:var(--blue2);margin:8px 0}
.process p{font-size:14px;color:var(--muted)}
.form-section{background:var(--blue2);color:#dbe8f5}
.form-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:55px;align-items:start}
.form-copy h2{font-size:36px;line-height:1.35;color:#fff;margin:15px 0}
.form-copy p{color:#bfd0e2}
.form-copy ul{list-style:none;margin-top:24px}
.form-copy li{padding:8px 0 8px 23px;position:relative}
.form-copy li:before{content:"";position:absolute;width:8px;height:8px;background:var(--cyan);border-radius:50%;left:0;top:18px}
.form-card{background:#fff;border-radius:17px;padding:25px;color:var(--ink);display:grid;grid-template-columns:1fr 1fr;gap:15px;box-shadow:var(--shadow)}
.field{display:flex;flex-direction:column;gap:5px}
.field label{font-size:13px;font-weight:700;color:var(--blue2)}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:9px;padding:10px 12px;outline:0;color:var(--ink);background:#fbfdff}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(23,88,166,.12)}
.field textarea{min-height:105px;resize:vertical}
.field.full,.form-card .btn{grid-column:1/-1}
.form-tip{font-size:12px;color:var(--muted);grid-column:1/-1}
.site-footer{background:#102b4c;color:#c3d2e1;padding:54px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:35px}
.site-footer .logo{color:#fff;margin-bottom:14px}
.site-footer p{font-size:14px;line-height:1.8}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:13px}
.site-footer a{display:block;color:#b7cce0;font-size:14px;padding:3px 0}
.site-footer a:hover{color:#fff}
.copyright{display:flex;flex-wrap:wrap;gap:10px 24px;border-top:1px solid rgba(255,255,255,.16);margin-top:35px;padding-top:18px;font-size:12px;color:#9db4ca}
.back-top{position:fixed;right:24px;bottom:24px;width:44px;height:44px;border:0;border-radius:50%;background:var(--blue);color:#fff;box-shadow:var(--soft);display:none}
.back-top.show{display:block}
@media(max-width:980px){.nav{gap:0}.nav a{padding:8px 7px;font-size:13px}.hero-grid{gap:30px}.selector-layout{grid-template-columns:220px 1fr}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}}
@media(max-width:768px){.container{width:min(100% - 32px,600px)}.site-header,.nav-wrap{height:70px}.menu-btn{display:block}.nav{display:none;position:absolute;left:16px;right:16px;top:70px;background:#fff;padding:10px;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px 14px}.nav .nav-cta{margin:5px 0 0;text-align:center}.hero{padding:53px 0}.hero-grid,.intro-grid,.form-layout{grid-template-columns:1fr}.hero-visual{order:-1}.hero-visual img{height:280px}.visual-card{right:12px;bottom:15px}.section{padding:64px 0}.section-head{display:block;margin-bottom:25px}.section-head p{margin-top:12px}.selector-layout{grid-template-columns:1fr}.scenario-nav{position:static;display:flex;overflow:auto;gap:5px}.scenario-nav button{min-width:145px}.detail-body{padding:24px}.detail-columns{grid-template-columns:1fr}.intro-grid img{height:270px}.process{grid-template-columns:1fr 1fr}.note-strip{grid-template-columns:1fr}.note-strip div{border-right:0;border-bottom:1px solid var(--line)}.note-strip div:last-child{border-bottom:0}.compare{overflow-x:auto}.compare-row{min-width:650px}.form-card{grid-template-columns:1fr}.field.full,.form-card .btn{grid-column:auto}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.copyright{display:block}.copyright span{display:block;margin-top:7px}}
@media(max-width:520px){h1{font-size:39px}.hero-copy{font-size:16px}.actions .btn{width:100%}.hero-note{gap:15px}.hero-note strong{font-size:19px}.process{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.detail-panel img{height:220px}.logo{font-size:20px}}