:root{--navy:#143d72;--deep:#0d2b51;--navy-dark:#0e2d54;--teal:#079aa3;--mist:#e8f4f3;--ink:#17283a;--muted:#687784;--paper:#f7f8f5;--white:#fff;--line:#dfe5e6;--sand:#eee9df}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif}a{color:inherit;text-decoration:none}.container{width:min(1160px,calc(100% - 48px));margin:auto}.topline{height:34px;background:var(--navy-dark);color:#cddceb;font-size:11px}.topline .container{height:100%;display:flex;align-items:center;justify-content:space-between}.header{height:94px;background:#fffc;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(16px)}.header .container{height:100%;display:flex;align-items:center}.logo{width:286px;height:auto;display:block}.nav{margin-left:auto;display:flex;align-items:center;gap:27px;font-size:13px}.nav>a{height:94px;display:flex;align-items:center;position:relative;white-space:nowrap}.nav>a:after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--teal);transition:.25s}.nav>a:hover:after{right:0}.nav .active{color:var(--teal);font-weight:700}.nav .active:after{right:0}.book{margin-left:24px;border:0;background:var(--navy);color:#fff;padding:12px 17px;border-radius:2px;font-size:12px;letter-spacing:1px}.menu{display:none;margin-left:auto;border:0;background:none;font-size:24px}.mobile-nav{display:none}.crumb{font-size:11px;color:var(--muted);padding:18px 0;border-bottom:1px solid var(--line)}.page-hero{min-height:410px;background:linear-gradient(110deg,#f7f8f5 0 58%,#e4f1ef 58%);display:flex;align-items:center;position:relative;overflow:hidden}.page-hero:after{content:"TRUE NORTH";position:absolute;right:-20px;bottom:-25px;font:92px Georgia,serif;color:#143d7209;letter-spacing:4px}.hero-grid{display:grid;grid-template-columns:1fr .75fr;gap:80px;align-items:center}.eyebrow{font-size:10px;letter-spacing:3px;color:var(--teal);font-weight:800}.page-hero h1{font:500 46px/1.35 "Songti SC",SimSun,serif;letter-spacing:2px;margin:18px 0}.page-hero p{color:var(--muted);font-size:14px;line-height:2;max-width:650px}.hero-mark{width:260px;height:260px;border:1px solid #9ccdcc;border-radius:50%;margin:auto;box-shadow:0 0 0 45px #fff7,0 0 0 90px #ffffff52;display:grid;place-items:center;text-align:center;color:var(--navy);font:500 17px/1.45 Georgia,serif;letter-spacing:2px;padding:38px;text-transform:uppercase}.content{padding:80px 0}.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:70px}.article h2{font:500 30px "Songti SC",SimSun,serif;margin:0 0 20px}.article h3{font:500 22px "Songti SC",SimSun,serif;margin:45px 0 15px}.article p,.article li{color:#566673;font-size:14px;line-height:2}.article ul{padding-left:20px}.notice{margin:28px 0;padding:20px 22px;background:var(--mist);border-left:3px solid var(--teal);font-size:12px;line-height:1.9;color:#49626b}.steps,.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:13px;margin:25px 0}.step,.card{background:white;border:1px solid var(--line);padding:22px}.step b{font:14px Georgia,serif;color:var(--teal)}.step h4,.card h4{margin:10px 0 7px;font-size:14px}.step p,.card p{font-size:12px;line-height:1.75;margin:0}.sidebar{position:sticky;top:120px;height:max-content}.side-card{background:white;border:1px solid var(--line);padding:24px;margin-bottom:14px}.side-card h3{font-size:14px;margin:0 0 15px}.side-card a{display:block;padding:9px 0;border-bottom:1px solid #edf0f1;color:var(--muted);font-size:12px}.side-card a:hover{color:var(--teal)}.cta{padding:65px 0;background:var(--mist)}.cta-row{display:flex;align-items:center;justify-content:space-between}.cta h2{font:500 31px "Songti SC",SimSun,serif;margin:0 0 9px}.cta p{color:var(--muted);font-size:12px}.button{display:inline-block;background:var(--navy);color:white;padding:13px 21px;font-size:12px}.footer{background:#0c263f;color:#aab9c7;padding:55px 0 25px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:45px}.footer-logo{filter:brightness(0) invert(1);width:260px}.footer h4{color:white;font-size:12px}.footer a,.footer p{display:block;font-size:11px;line-height:1.8;margin:8px 0}.copy{border-top:1px solid #ffffff14;margin-top:38px;padding-top:19px;font-size:10px}.guide-hero{background:var(--deep);color:white;padding:70px 0}.guide-hero h1{font:500 43px "Songti SC",SimSun,serif;margin:12px 0}.guide-hero p{color:#c5d5e4}.phone{font:28px Georgia,serif;color:#75d2d0;margin-top:20px}.guide-section{padding:60px 0;border-bottom:1px solid var(--line)}.guide-section h2{font:500 28px "Songti SC",SimSun,serif}.route-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.route{background:white;border:1px solid var(--line);padding:25px}.route .icon{font-size:25px}.route h3{font-size:16px}.route p,.route li{font-size:13px;line-height:1.9;color:var(--muted)}.placeholder{height:150px;background:linear-gradient(135deg,#edf3f1,#d9e9e7);display:grid;place-items:center;color:#7b9394;font-size:12px;margin-top:15px}.equipment{display:flex;flex-wrap:wrap;gap:9px}.equipment span{background:white;border:1px solid var(--line);padding:10px 13px;font-size:12px}.verify{background:#fff6e6;color:#8a651f;padding:15px 18px;font-size:12px;line-height:1.8;margin:20px 0}.search-box{display:flex;gap:8px}.search-box input{width:100%;border:1px solid var(--line);padding:10px}.search-box button{border:0;background:var(--navy);color:white;padding:0 14px}@media(max-width:980px){.nav{display:none}.menu{display:block}.book{margin-left:14px}.mobile-nav{position:fixed;inset:128px 0 auto;background:white;z-index:18;padding:20px 24px;box-shadow:0 20px 35px #0001}.mobile-nav.open{display:grid}.mobile-nav a{padding:13px;border-bottom:1px solid var(--line)}.hero-grid,.content-grid{grid-template-columns:1fr}.hero-mark{display:none}.sidebar{position:static}.footer-grid{grid-template-columns:1fr 1fr}}@media(max-width:600px){.container{width:calc(100% - 32px)}.topline{display:none}.header{height:76px}.logo{width:218px}.book{display:none}.mobile-nav{inset:76px 0 auto}.page-hero{min-height:360px;background:linear-gradient(#f7f8f5,#e4f1ef)}.page-hero h1,.guide-hero h1{font-size:34px}.content{padding:55px 0}.steps,.cards,.route-grid{grid-template-columns:1fr}.cta-row{display:block}.cta .button{margin-top:18px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}}

/* 981–1160px：9 项导航（含「信息中心」）与 286px logo 并排会顶出容器，此区间同步收紧 logo 宽、导航间距与按钮内边距（与首页 index.html 内联样式保持一致） */
@media(min-width:981px) and (max-width:1160px){.logo{width:240px}.nav{gap:14px;font-size:12.5px}.book{margin-left:14px;padding:11px 15px;font-size:11.5px}}

/* 备案号（页脚底部 / 404 页正文末）。注意：.footer a 默认 display:block，此处需内联显示，故后置覆盖 */
.footer-icp{margin-top:12px;font-size:10px;line-height:1.8}
.footer-icp a{display:inline;margin:0;font-size:10px;color:inherit;text-decoration:none}
.footer-icp a:hover{color:#fff}
.footer-icp--light{margin-top:26px;color:var(--muted)}
.footer-icp--light a:hover{color:var(--navy)}