/* roulang page: index */
*,*::before,*::after{box-sizing:border-box}
:root{
--c-primary:#1C5D99;
--c-primary-600:#15497A;
--c-primary-100:#E8F1F9;
--c-accent:#0FA3A0;
--c-spark:#F2704A;
--c-bg:#F5F8FB;
--c-bg-deep:#EEF3F9;
--c-surface:#FFFFFF;
--c-line:#E3EAF2;
--c-text:#0F1E2E;
--c-text-2:#4C5D70;
--c-text-3:#8A99A8;
--c-ok:#1E9E6A;
--c-warn:#D89A00;
--c-err:#D64545;
--r-sm:8px;
--r-md:14px;
--r-lg:20px;
--r-pill:999px;
--sh-1:0 1px 2px rgba(15,30,46,.06),0 1px 3px rgba(15,30,46,.04);
--sh-2:0 8px 24px rgba(23,58,94,.08);
--sh-3:0 18px 48px rgba(23,58,94,.12);
--sp-section:88px;
--container:1200px;
}
html{scroll-behavior:smooth}
body{
margin:0;
font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
font-size:16px;line-height:1.75;color:var(--c-text);background:var(--c-bg);
-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:var(--r-sm)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input,select,textarea{font-family:inherit;font-size:16px;color:var(--c-text)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
@media (min-width:1360px){:root{--container:1280px}}

/* ---------- 公告条 ---------- */
.notice-bar{background:var(--c-primary-100);border-bottom:1px solid var(--c-line);font-size:14px;color:var(--c-text-2)}
.notice-inner{display:flex;align-items:center;gap:16px;min-height:44px;padding:8px 0}
.notice-tag{display:inline-flex;align-items:center;gap:6px;background:var(--c-spark);color:#fff;font-size:12.5px;font-weight:600;padding:3px 10px;border-radius:var(--r-pill);white-space:nowrap}
.notice-text{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.notice-link{font-weight:600;white-space:nowrap;border-bottom:1px solid transparent}
.notice-link:hover{border-bottom-color:var(--c-primary)}
.notice-close{width:32px;height:32px;border-radius:var(--r-sm);display:grid;place-items:center;color:var(--c-text-3);font-size:18px;line-height:1;transition:background .2s,color .2s}
.notice-close:hover{background:#fff;color:var(--c-primary)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--c-surface);border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--sh-3)}
.nav-inner{display:flex;align-items:center;gap:28px;min-height:76px;transition:min-height .25s ease}
.site-header.is-scrolled .nav-inner{min-height:68px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{width:38px;height:38px;border-radius:11px;background:var(--c-primary);position:relative;overflow:hidden;flex-shrink:0}
.logo-mark::before{content:"";position:absolute;inset:0;background:
linear-gradient(115deg,transparent 0 42%,rgba(255,255,255,.9) 42% 50%,transparent 50% 100%),
linear-gradient(115deg,transparent 0 62%,rgba(15,163,160,.95) 62% 72%,transparent 72% 100%);}
.logo-mark::after{content:"";position:absolute;left:8px;bottom:9px;width:16px;height:16px;border:2.5px solid rgba(255,255,255,.92);border-top-color:transparent;border-left-color:transparent;border-radius:50%;transform:rotate(20deg)}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-name{font-size:18px;font-weight:800;letter-spacing:.2px;color:var(--c-text)}
.logo-sub{font-size:11.5px;font-weight:500;color:var(--c-text-3);letter-spacing:.6px}
.nav-list{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-item{position:relative}
.nav-link{display:inline-flex;align-items:center;height:44px;padding:0 14px;font-size:15.5px;font-weight:600;color:var(--c-text-2);position:relative;transition:color .2s ease;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left center;transition:transform .2s ease}
.nav-link:hover,.nav-link:focus-visible{color:var(--c-primary)}
.nav-link:hover::after,.nav-link:focus-visible::after,.nav-item.is-active .nav-link::after{transform:scaleX(1)}
.nav-item.is-active .nav-link{color:var(--c-primary)}

/* Mega 面板 */
.mega{position:absolute;top:calc(100% + 12px);left:-24px;width:680px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-3);padding:0;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .18s ease,transform .18s ease,visibility .18s;overflow:hidden}
.mega::before{content:"";display:block;height:3px;background:linear-gradient(90deg,var(--c-primary),var(--c-accent))}
.nav-item:hover .mega,.nav-item:focus-within .mega,.nav-item.mega-open .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega-inner{display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:24px;padding:24px 26px 26px}
.mega-col-title{font-size:12.5px;font-weight:700;letter-spacing:.8px;color:var(--c-text-3);margin-bottom:10px}
.mega-links{display:flex;flex-direction:column;gap:2px}
.mega-links a{display:flex;align-items:center;gap:8px;font-size:14.5px;color:var(--c-text-2);padding:6px 8px;border-radius:var(--r-sm);transition:background .18s,color .18s}
.mega-links a:hover{background:var(--c-primary-100);color:var(--c-primary)}
.mega-links i{width:6px;height:6px;border-radius:2px;background:var(--c-accent);flex-shrink:0;font-style:normal}
.mega-news{display:flex;flex-direction:column;gap:12px}
.mega-news a{display:block;padding-bottom:12px;border-bottom:1px dashed var(--c-line)}
.mega-news a:last-child{border-bottom:0;padding-bottom:0}
.mega-news strong{display:block;font-size:14.5px;font-weight:600;color:var(--c-text);line-height:1.5;margin-bottom:4px}
.mega-news a:hover strong{color:var(--c-primary)}
.mega-news span{font-size:12.5px;color:var(--c-text-3);font-variant-numeric:tabular-nums}
.mega-card{background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;display:flex;flex-direction:column}
.mega-card img{width:100%;height:104px;object-fit:cover}
.mega-card-body{padding:14px 16px 16px}
.mega-card-body p{font-size:13.5px;color:var(--c-text-2);line-height:1.6;margin-bottom:10px}
.mega-arrow{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--c-primary)}
.mega-arrow em{font-style:normal;transition:transform .2s ease}
.mega-arrow:hover em{transform:translateX(3px)}

.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--c-line);place-items:center;color:var(--c-text)}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 移动抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(15,30,46,.45);opacity:0;visibility:hidden;transition:opacity .25s ease;z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;height:100%;width:86vw;max-width:360px;background:#fff;z-index:95;transform:translateX(100%);transition:transform .28s ease;display:flex;flex-direction:column;box-shadow:var(--sh-3)}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:40px;height:40px;border-radius:var(--r-sm);display:grid;place-items:center;font-size:22px;color:var(--c-text-2);border:1px solid var(--c-line)}
.drawer-nav{padding:12px 12px 20px;overflow-y:auto;flex:1}
.drawer-nav a{display:block;padding:14px 12px;font-size:16px;font-weight:600;color:var(--c-text);border-radius:var(--r-sm)}
.drawer-nav a:hover{background:var(--c-primary-100);color:var(--c-primary)}
.drawer-group{padding:16px 12px 4px;font-size:12.5px;font-weight:700;color:var(--c-text-3);letter-spacing:.8px}
.drawer-sub a{font-size:14.5px;font-weight:500;color:var(--c-text-2)}
.drawer-foot{padding:16px 20px 24px;border-top:1px solid var(--c-line)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-md);font-size:15.5px;font-weight:600;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;white-space:nowrap}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-600);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-primary:disabled{background:#B9C6D4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-outline{background:#fff;color:var(--c-primary);border:1px solid var(--c-line)}
.btn-outline:hover{border-color:var(--c-primary);background:var(--c-primary-100)}
.btn-sm{height:42px;padding:0 18px;font-size:14.5px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary);border-bottom:1px solid var(--c-primary);padding-bottom:2px}
.link-arrow em{font-style:normal;transition:transform .2s ease}
.link-arrow:hover em{transform:translateX(3px)}

/* ---------- Hero ---------- */
.hero{position:relative;background-image:linear-gradient(120deg,rgba(245,248,251,.97) 0%,rgba(245,248,251,.88) 46%,rgba(245,248,251,.55) 100%),url(/assets/images/backpic/back-1.webp);background-size:cover;background-position:center;border-bottom:1px solid var(--c-line)}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;padding:72px 0 84px}
.hero-crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--c-text-3);margin-bottom:18px}
.hero-crumb a{color:var(--c-text-2)}
.hero-crumb a:hover{color:var(--c-primary)}
.hero h1{font-size:44px;line-height:1.18;font-weight:800;letter-spacing:-.4px;margin-bottom:18px}
.hero h1 span{color:var(--c-primary)}
.hero-sub{font-size:17px;line-height:1.8;color:var(--c-text-2);max-width:560px;margin-bottom:28px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px}
.trust-row{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--c-line);padding-top:20px}
.trust-item{padding:0 22px;border-left:1px solid var(--c-line)}
.trust-item:first-child{padding-left:0;border-left:0}
.trust-num{font-size:19px;font-weight:800;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.3}
.trust-label{font-size:13px;color:var(--c-text-3)}

.pain-card{position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:30px 28px 26px;overflow:hidden}
.pain-card::before{content:"";position:absolute;left:0;top:0;width:4px;height:64px;background:var(--c-spark);border-radius:0 4px 4px 0}
.pain-card h2{font-size:19px;font-weight:700;margin-bottom:6px}
.pain-card > p{font-size:14px;color:var(--c-text-3);margin-bottom:18px}
.pain-checks{display:flex;flex-direction:column;gap:12px;margin-bottom:22px}
.pain-checks li{display:flex;gap:11px;font-size:14.5px;line-height:1.65;color:var(--c-text-2)}
.pain-checks i{width:16px;height:16px;border:1.5px solid var(--c-line);border-radius:4px;flex-shrink:0;margin-top:4px;position:relative;background:#fff}
.pain-checks i::after{content:"";position:absolute;left:4px;top:1px;width:5px;height:9px;border:2px solid var(--c-accent);border-top:0;border-left:0;transform:rotate(42deg);opacity:0;transition:opacity .2s}
.pain-checks li:hover i::after{opacity:1}
.pain-card-foot{font-size:13px;color:var(--c-text-3);border-top:1px dashed var(--c-line);padding-top:14px}
.hero-visual{position:relative;margin-top:0}
.hero-visual img{width:100%;height:170px;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-2);margin-bottom:18px}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-section) 0}
.section--tight{padding:64px 0}
.section--white{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:38px}
.sec-title{position:relative;padding-left:16px}
.sec-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:var(--c-primary)}
.sec-title h2{font-size:28px;font-weight:800;line-height:1.3;letter-spacing:-.2px}
.sec-title p{font-size:15px;color:var(--c-text-2);margin-top:8px;max-width:660px}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:1.2px;color:var(--c-accent);margin-bottom:10px}

/* ---------- 痛点区 ---------- */
.pain-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:40px;align-items:start}
.pain-list{display:flex;flex-direction:column;gap:0}
.pain-row{display:grid;grid-template-columns:56px 1fr;gap:18px;padding:22px 0;border-bottom:1px solid var(--c-line)}
.pain-row:first-child{border-top:1px solid var(--c-line)}
.pain-row b{font-size:30px;font-weight:800;line-height:1;color:transparent;-webkit-text-stroke:1.4px var(--c-primary);font-variant-numeric:tabular-nums}
.pain-row h3{font-size:17px;font-weight:700;margin-bottom:6px}
.pain-row p{font-size:14.5px;color:var(--c-text-2);line-height:1.7}
.self-check{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:26px}
.self-check h3{font-size:17px;font-weight:700;margin-bottom:4px}
.self-check > p{font-size:13.5px;color:var(--c-text-3);margin-bottom:18px}
.self-list{display:flex;flex-direction:column;gap:0}
.self-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--c-text-2);padding:11px 0;border-bottom:1px dashed var(--c-line)}
.self-list li:last-child{border-bottom:0}
.self-list li span{color:var(--c-ok);font-weight:700;flex-shrink:0}
.self-foot{margin-top:18px;font-size:13px;color:var(--c-text-3);background:var(--c-bg);border-radius:var(--r-sm);padding:12px 14px;line-height:1.6}

/* ---------- 方案区 ---------- */
.plan-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:24px;align-items:stretch}
.plan-main{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease}
.plan-main:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.plan-main img{width:100%;height:230px;object-fit:cover}
.plan-main-body{padding:28px}
.plan-main-body h3{font-size:22px;font-weight:800;margin-bottom:10px}
.plan-main-body p{font-size:15px;color:var(--c-text-2);margin-bottom:18px}
.plan-points{display:flex;flex-direction:column;gap:10px}
.plan-points li{display:flex;gap:10px;font-size:14.5px;color:var(--c-text-2);align-items:flex-start}
.plan-points li::before{content:"";width:7px;height:7px;background:var(--c-accent);border-radius:2px;margin-top:8px;flex-shrink:0}
.plan-side{display:grid;grid-template-rows:repeat(3,1fr);gap:24px}
.plan-mini{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:22px 24px;display:flex;gap:16px;align-items:flex-start;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.plan-mini:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary-100)}
.plan-mini-icon{width:44px;height:44px;border-radius:12px;background:var(--c-primary-100);display:grid;place-items:center;flex-shrink:0;color:var(--c-primary);font-weight:800;font-size:16px}
.plan-mini h4{font-size:16.5px;font-weight:700;margin-bottom:6px}
.plan-mini p{font-size:14px;color:var(--c-text-2);line-height:1.65}

/* ---------- 数据带 ---------- */
.stats-band{background:var(--c-primary-100);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:56px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:0 28px;border-left:1px solid rgba(28,93,153,.18)}
.stat:first-child{border-left:0;padding-left:0}
.stat-num{font-size:38px;font-weight:800;line-height:1.15;color:var(--c-spark);font-variant-numeric:tabular-nums;letter-spacing:-.5px}
.stat-num small{font-size:16px;font-weight:700;margin-left:3px;color:var(--c-primary)}
.stat-label{font-size:14px;color:var(--c-text-2);margin-top:6px;line-height:1.55}
.stats-foot{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:30px;padding-top:22px;border-top:1px dashed rgba(28,93,153,.22);font-size:14px;color:var(--c-text-2)}

/* ---------- 分类矩阵 ---------- */
.cat-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.cat-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.cat-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary-100)}
.cat-card img{width:100%;height:200px;object-fit:cover}
.cat-card-body{padding:26px 26px 24px;display:flex;flex-direction:column;flex:1}
.cat-badge{align-self:flex-start;font-size:12.5px;font-weight:600;color:var(--c-primary);background:var(--c-primary-100);padding:4px 10px;border-radius:var(--r-pill);margin-bottom:14px}
.cat-card-body h3{font-size:20px;font-weight:800;margin-bottom:10px}
.cat-card-body > p{font-size:14.5px;color:var(--c-text-2);line-height:1.75;margin-bottom:16px}
.cat-sublist{display:flex;flex-direction:column;gap:8px;margin-bottom:20px}
.cat-sublist li{display:flex;gap:9px;font-size:14px;color:var(--c-text-2)}
.cat-sublist li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);margin-top:8px;flex-shrink:0;opacity:.55}
.cat-card-body .link-arrow{margin-top:auto}

/* ---------- 内容卡片 / 资讯 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;color:inherit}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary-100)}
.news-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--c-bg-deep)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-meta{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.badge{font-size:12.5px;font-weight:600;color:var(--c-primary);background:var(--c-primary-100);padding:4px 10px;border-radius:var(--r-pill);white-space:nowrap}
.news-date{font-size:12.5px;color:var(--c-text-3);font-variant-numeric:tabular-nums}
.news-body h3{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover h3{color:var(--c-primary)}
.news-desc{font-size:14px;color:var(--c-text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body .link-arrow{margin-top:16px;font-size:14px;border-bottom:0}
.empty-state{grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-md);padding:64px 24px;min-height:280px}
.empty-icon{width:56px;height:56px;border-radius:16px;background:var(--c-primary-100);display:grid;place-items:center;font-size:22px;color:var(--c-primary);margin-bottom:18px}
.empty-state p{font-size:15px;color:var(--c-text-2);margin-bottom:20px}

/* ---------- 流程时间线 ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.timeline::before{content:"";position:absolute;left:0;right:0;top:22px;height:1px;background:var(--c-line)}
.step{position:relative;padding-top:56px}
.step-idx{position:absolute;left:0;top:0;width:44px;height:44px;border-radius:12px;background:var(--c-surface);border:1px solid var(--c-line);display:grid;place-items:center;font-size:15px;font-weight:800;color:var(--c-primary);font-variant-numeric:tabular-nums;box-shadow:var(--sh-1)}
.step h3{font-size:17px;font-weight:700;margin-bottom:8px}
.step p{font-size:14px;color:var(--c-text-2);line-height:1.7}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1.6fr 1fr;gap:40px;align-items:start}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:18px 22px;font-size:17px;font-weight:600;color:var(--c-text);transition:background .2s ease}
.faq-q:hover{background:var(--c-primary-100)}
.faq-q i{width:20px;height:20px;position:relative;flex-shrink:0}
.faq-q i::before,.faq-q i::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .25s ease}
.faq-q i::before{left:0;top:9px;width:20px;height:2px}
.faq-q i::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-q i::after{transform:rotate(90deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{font-size:15.5px;line-height:1.85;color:var(--c-text-2);padding:0 22px 20px}
.faq-aside{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:26px}
.faq-aside img{width:100%;height:160px;object-fit:cover;border-radius:var(--r-md);margin-bottom:18px}
.faq-aside h3{font-size:17px;font-weight:700;margin-bottom:10px}
.faq-aside p{font-size:14px;color:var(--c-text-2);line-height:1.75;margin-bottom:18px}

/* ---------- CTA + 表单 ---------- */
.cta-band{background:var(--c-primary);color:#fff;border-radius:var(--r-lg);padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;box-shadow:var(--sh-2)}
.cta-band h2{font-size:24px;font-weight:800;line-height:1.35;margin-bottom:8px}
.cta-band p{font-size:14.5px;color:rgba(255,255,255,.82);line-height:1.7}
.cta-band .btn-primary{background:#fff;color:var(--c-primary);flex-shrink:0}
.cta-band .btn-primary:hover{background:var(--c-primary-100);box-shadow:var(--sh-3)}
.form-band{margin-top:24px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:30px 32px}
.form-band h3{font-size:19px;font-weight:700;margin-bottom:6px}
.form-band > p{font-size:14px;color:var(--c-text-3);margin-bottom:22px}
.form-grid{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:16px;align-items:end}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:13.5px;font-weight:600;color:var(--c-text-2)}
.field label b{color:var(--c-spark);font-weight:700}
.field input,.field select{height:48px;border:1px solid var(--c-line);border-radius:var(--r-sm);background:#fff;padding:0 14px;transition:border-color .2s ease,box-shadow .2s ease;width:100%}
.field input::placeholder{color:var(--c-text-3)}
.field input:focus,.field select:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(28,93,153,.14)}
.form-note{font-size:12.5px;color:var(--c-text-3);margin-top:16px;line-height:1.7}
.form-note a{color:var(--c-primary);border-bottom:1px solid var(--c-primary)}
.form-msg{margin-top:16px;font-size:14px;border-radius:var(--r-sm);padding:12px 14px;border-left:3px solid var(--c-ok);background:#EDF8F2;color:#136C48;display:none}
.form-msg.is-visible{display:block}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-bg-deep);border-top:1px solid var(--c-line);margin-top:var(--sp-section)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 44px}
.footer-brand p{font-size:14px;color:var(--c-text-2);line-height:1.75;margin:16px 0 18px;max-width:320px}
.footer-contact{font-size:14px;color:var(--c-text-2);line-height:1.9}
.footer-contact span{color:var(--c-text-3)}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--c-text-2)}
.footer-links a:hover{color:var(--c-primary)}
.footer-news{display:flex;flex-direction:column;gap:14px}
.footer-news a{display:block}
.footer-news strong{display:block;font-size:14px;font-weight:600;color:var(--c-text);line-height:1.6;margin-bottom:4px}
.footer-news a:hover strong{color:var(--c-primary)}
.footer-news span{font-size:12.5px;color:var(--c-text-3);font-variant-numeric:tabular-nums}
.footer-bottom{border-top:1px solid var(--c-line);padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--c-text-3)}
.footer-bottom a{color:var(--c-text-3);border-bottom:1px solid transparent}
.footer-bottom a:hover{color:var(--c-primary);border-bottom-color:var(--c-primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
:root{--sp-section:64px}
.container{padding:0 24px}
.nav-list{display:none}
.nav-toggle{display:grid}
.hero-grid{grid-template-columns:1fr;gap:36px;padding:52px 0 64px}
.hero h1{font-size:34px}
.hero-sub{font-size:16px}
.pain-grid{grid-template-columns:1fr;gap:28px}
.plan-grid{grid-template-columns:1fr}
.plan-side{grid-template-rows:none;grid-template-columns:1fr 1fr}
.stats-grid{grid-template-columns:1fr 1fr;gap:28px 0}
.stat:nth-child(3){border-left:0;padding-left:0}
.cat-grid{grid-template-columns:1fr}
.news-grid{grid-template-columns:repeat(2,1fr)}
.timeline{grid-template-columns:1fr 1fr;gap:32px 24px}
.timeline::before{display:none}
.faq-wrap{grid-template-columns:1fr}
.form-grid{grid-template-columns:1fr 1fr}
.form-grid .field-cta{grid-column:1/-1}
.footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
:root{--sp-section:48px}
.container{padding:0 18px}
.nav-inner{min-height:64px;gap:14px}
.site-header.is-scrolled .nav-inner{min-height:60px}
.logo-name{font-size:16.5px}
.logo-sub{font-size:11px}
.hero h1{font-size:28px;letter-spacing:-.2px}
.hero-sub{font-size:15.5px}
.hero-cta .btn{width:100%}
.trust-item{padding:0 16px}
.trust-item:nth-child(3){padding-left:0;border-left:0}
.sec-title h2{font-size:23px}
.sec-head{flex-direction:column;align-items:flex-start;gap:14px}
.pain-row{grid-template-columns:40px 1fr;gap:14px;padding:18px 0}
.pain-row b{font-size:24px}
.plan-side{grid-template-columns:1fr}
.stats-grid{grid-template-columns:1fr 1fr;gap:26px 0}
.stat{padding:0 16px}
.stat-num{font-size:30px}
.stats-foot{flex-direction:column;align-items:flex-start}
.news-grid{grid-template-columns:1fr}
.timeline{grid-template-columns:1fr;gap:26px}
.step{padding-top:0;padding-left:60px}
.cta-band{flex-direction:column;align-items:flex-start;padding:30px 24px;gap:20px}
.cta-band h2{font-size:21px}
.cta-band .btn{width:100%}
.form-band{padding:24px 20px}
.form-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 32px}
.footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:520px){
.hero h1{font-size:25px}
.trust-item{padding:0 12px}
.trust-num{font-size:17px}
.pain-card{padding:24px 20px 22px}
}

/* roulang page: category1 */
:root{
  --c-primary:#1C5D99;
  --c-primary-600:#15497A;
  --c-primary-100:#E8F1F9;
  --c-accent:#0FA3A0;
  --c-spark:#F2704A;
  --c-bg:#F5F8FB;
  --c-bg-deep:#EEF3F9;
  --c-surface:#FFFFFF;
  --c-line:#E3EAF2;
  --c-text:#0F1E2E;
  --c-text-2:#4C5D70;
  --c-text-3:#8A99A8;
  --c-ok:#1E9E6A;
  --c-warn:#D89A00;
  --c-err:#D64545;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(15,30,46,.06),0 1px 3px rgba(15,30,46,.04);
  --sh-2:0 8px 24px rgba(23,58,94,.08);
  --sh-3:0 18px 48px rgba(23,58,94,.12);
  --nav-h:72px;
  --sp-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary-600)}
button{font:inherit;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-text);letter-spacing:.2px}
h1{font-size:36px;line-height:1.22}
h2{font-size:28px;line-height:1.32}
h3{font-size:20px;line-height:1.45}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-3)}
.header-inner{display:flex;align-items:center;gap:24px;height:var(--nav-h);transition:height .2s ease}
.site-header.is-scrolled .header-inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:11px;color:var(--c-text);flex:0 0 auto}
.logo:hover{color:var(--c-text)}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--c-primary);
  position:relative;overflow:hidden;flex:0 0 34px;
}
.logo-mark::before{content:"";position:absolute;width:7px;height:24px;left:8px;top:5px;background:var(--c-accent);transform:skewX(-20deg);border-radius:2px}
.logo-mark::after{content:"";position:absolute;width:7px;height:15px;left:20px;top:9px;background:#fff;opacity:.9;transform:skewX(-20deg);border-radius:2px}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-name{font-size:17px;font-weight:700;letter-spacing:.3px}
.logo-sub{font-size:11.5px;font-weight:400;color:var(--c-text-3);letter-spacing:.6px}
.nav-list{display:flex;align-items:center;margin-left:auto}
.nav-item{position:relative;display:flex;align-items:center;height:var(--nav-h)}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:100%;
  padding:0 15px;font-size:15px;color:var(--c-text-2);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:15px;right:15px;bottom:16px;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-item:hover .nav-link,.nav-item:focus-within .nav-link,.nav-item.is-active .nav-link{color:var(--c-primary)}
.nav-item:hover .nav-link::after,.nav-item:focus-within .nav-link::after,.nav-item.is-active .nav-link::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}

/* Mega 面板 */
.mega{
  position:absolute;top:calc(var(--nav-h) - 10px);left:50%;
  width:700px;background:var(--c-surface);border-radius:var(--r-lg);
  box-shadow:var(--sh-3);padding:26px 26px 22px;
  transform:translate(-50%,6px);opacity:0;visibility:hidden;
  transition:opacity .18s ease,transform .18s ease,visibility .18s;
  z-index:90;
}
.mega::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  border-radius:var(--r-lg) var(--r-lg) 0 0;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
}
.nav-item:hover .mega,.nav-item:focus-within .mega,.nav-item.mega-open .mega{
  opacity:1;visibility:visible;transform:translate(-50%,0);
}
.mega-inner{display:grid;grid-template-columns:1fr 1fr 1fr;gap:22px}
.mega-col-title{font-size:12.5px;font-weight:700;color:var(--c-text-3);letter-spacing:1px;margin-bottom:12px}
.mega-links a{
  display:flex;align-items:center;gap:9px;padding:7px 0;font-size:14px;color:var(--c-text-2);
}
.mega-links a i{
  width:7px;height:7px;border-radius:2px;background:var(--c-primary-100);
  border:1px solid #B9D4E8;flex:0 0 7px;transform:rotate(45deg);transition:background .18s ease;
}
.mega-links a:hover{color:var(--c-primary)}
.mega-links a:hover i{background:var(--c-accent);border-color:var(--c-accent)}
.mega-news a{display:block;padding:9px 0;border-bottom:1px dashed var(--c-line)}
.mega-news a:last-child{border-bottom:0}
.mega-news strong{display:block;font-size:13.5px;font-weight:600;color:var(--c-text);line-height:1.5}
.mega-news span{font-size:12.5px;color:var(--c-text-3)}
.mega-card{
  margin-top:12px;border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;background:var(--c-bg);
}
.mega-card img{width:100%;height:96px;object-fit:cover}
.mega-card-body{padding:12px 14px}
.mega-card-body p{font-size:13px;color:var(--c-text-2);margin-bottom:8px;line-height:1.55}
.mega-more{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600}
.mega-more::after{content:"→";transition:transform .18s ease}
.mega-more:hover::after{transform:translateX(3px)}

/* 汉堡与抽屉 */
.menu-btn{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);background:var(--c-surface);
  border-radius:var(--r-sm);align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.menu-btn span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,30,46,.45);z-index:100;
  opacity:0;pointer-events:none;transition:opacity .22s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:360px;background:var(--c-surface);
  z-index:110;transform:translateX(100%);transition:transform .26s ease;
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--c-line);background:var(--c-surface);
  border-radius:var(--r-sm);font-size:20px;line-height:1;color:var(--c-text-2);
}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-nav a{
  padding:13px 12px;border-radius:var(--r-sm);font-size:15.5px;color:var(--c-text-2);
  border-left:3px solid transparent;
}
.drawer-nav a:hover{background:var(--c-primary-100)}
.drawer-nav a.is-active{color:var(--c-primary);background:var(--c-primary-100);border-left-color:var(--c-primary);font-weight:600}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-md);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:all .18s ease;white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:var(--c-surface);border-color:var(--c-line);color:var(--c-primary)}
.btn-ghost:hover{border-color:var(--c-primary);background:var(--c-primary-100);color:var(--c-primary-600)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{background:#B9C6D4;color:#fff;cursor:not-allowed;box-shadow:none;transform:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14.5px}
.link-arrow::after{content:"→";transition:transform .18s ease}
.link-arrow:hover::after{transform:translateX(3px)}

/* ---------- 头部 ---------- */
.page-head{
  position:relative;padding:34px 0 56px;border-bottom:1px solid var(--c-line);
  background:linear-gradient(180deg,rgba(245,248,251,.93),rgba(245,248,251,.99)),
             url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-text-3);margin-bottom:18px}
.breadcrumb a{color:var(--c-text-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"›";color:var(--c-text-3)}
.breadcrumb .current{color:var(--c-text-3)}
.head-grid{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
.head-copy h1{margin-bottom:16px}
.head-lead{font-size:16.5px;color:var(--c-text-2);margin-bottom:22px;max-width:620px}
.head-actions{display:flex;flex-wrap:wrap;gap:12px}
.head-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);overflow:hidden;position:relative;
}
.head-card::before{content:"";position:absolute;left:0;top:0;width:4px;height:100%;background:var(--c-spark)}
.head-card img{width:100%;height:180px;object-fit:cover}
.head-card-body{padding:20px 24px}
.head-card-body h3{font-size:16.5px;margin-bottom:12px}
.mini-list li{position:relative;padding-left:20px;font-size:14px;color:var(--c-text-2);margin-bottom:8px}
.mini-list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--c-primary-100);border:1px solid var(--c-primary)}

/* ---------- 主体布局 ---------- */
.section{padding:var(--sp-section) 0}
.section-tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--c-primary)}
.section-head p{color:var(--c-text-2);font-size:15px;margin-top:8px;padding-left:16px}

.layout{display:grid;grid-template-columns:236px 1fr;gap:52px;align-items:start}
.side-nav{
  position:sticky;top:calc(var(--nav-h) + 20px);
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--sh-1);
}
.side-nav-title{font-size:12.5px;font-weight:700;letter-spacing:1px;color:var(--c-text-3);margin-bottom:12px}
.side-link{
  display:block;padding:9px 0 9px 12px;border-left:3px solid transparent;
  font-size:14px;color:var(--c-text-2);border-radius:0 6px 6px 0;
}
.side-link:hover{color:var(--c-primary);background:var(--c-primary-100)}
.side-link.is-current{color:var(--c-primary);border-left-color:var(--c-primary);background:var(--c-primary-100);font-weight:600}

.content-flow{display:flex;flex-direction:column;gap:64px}
.figblock{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;scroll-margin-top:110px}
.figblock.is-reverse .fig-media{order:2}
.figblock.is-reverse .fig-text{order:1}
.fig-text h2{margin-bottom:16px}
.fig-text p{font-size:16px;color:var(--c-text-2);margin-bottom:14px}
.point-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.point-list li{position:relative;padding-left:22px;font-size:14.5px;color:var(--c-text-2)}
.point-list li::before{content:"";position:absolute;left:2px;top:8px;width:9px;height:9px;background:var(--c-accent);border-radius:2px;transform:rotate(45deg)}
.fig-media{border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-2);border:1px solid var(--c-line);background:var(--c-surface)}
.fig-media img{width:100%;aspect-ratio:16/10;object-fit:cover;height:auto}
.fig-tag{
  display:inline-flex;align-items:center;gap:7px;padding:5px 12px;border-radius:999px;
  background:var(--c-primary-100);color:var(--c-primary);font-size:12.5px;font-weight:600;margin-bottom:14px;
}
.fig-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent)}

/* 表格 */
.table-wrap{overflow-x:auto;border:1px solid var(--c-line);border-radius:var(--r-md);background:var(--c-surface);box-shadow:var(--sh-1)}
table{width:100%;border-collapse:collapse;min-width:760px;font-size:14.5px}
thead th{
  background:var(--c-primary-100);color:var(--c-primary-600);text-align:left;
  padding:15px 18px;font-size:13.5px;font-weight:700;white-space:nowrap;
}
tbody td{padding:15px 18px;border-top:1px solid var(--c-line);color:var(--c-text-2);vertical-align:top}
tbody tr:nth-child(even){background:#FAFCFE}
tbody td:first-child{color:var(--c-text);font-weight:600;white-space:nowrap}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);transition:border-color .18s ease,box-shadow .18s ease}
.faq-item:hover{border-color:#C9DFF0;box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:19px 24px;font-size:17px;font-weight:600;color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex:0 0 24px;width:24px;height:24px;position:relative;border-radius:50%;
  background:var(--c-primary-100);transition:transform .2s ease,background .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);transform:translate(-50%,-50%);
}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:#D9E9F6}
.faq-body{padding:0 24px 22px;color:var(--c-text-2);font-size:15.5px;line-height:1.85}

/* CTA 表单船 */
.cta-band{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:40px;display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start;
}
.cta-band h2{font-size:26px;margin-bottom:12px}
.cta-band .cta-lead{color:var(--c-text-2);font-size:15.5px;margin-bottom:18px}
.cta-notes li{position:relative;padding-left:20px;font-size:14px;color:var(--c-text-2);margin-bottom:9px}
.cta-notes li::before{content:"";position:absolute;left:0;top:8px;width:8px;height:8px;border-radius:2px;background:var(--c-primary-100);border:1px solid var(--c-primary)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:13.5px;color:var(--c-text-2);font-weight:600}
.field .req{color:var(--c-spark)}
.field input,.field select{
  height:48px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:var(--c-surface);font-size:15px;color:var(--c-text);transition:border-color .18s ease,box-shadow .18s ease;
}
.field input::placeholder{color:var(--c-text-3)}
.field input:focus,.field select:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(28,93,153,.18)}
.form-foot{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:6px}
.privacy-line{font-size:12.5px;color:var(--c-text-3);line-height:1.6}
.privacy-line a{text-decoration:underline}
.form-alert{display:none;grid-column:1/-1;padding:12px 16px;border-radius:var(--r-sm);font-size:14px;border-left:3px solid var(--c-ok);background:#EAF7F1;color:#14613F}
.form-alert.is-visible{display:block}
.form-alert.is-error{border-left-color:var(--c-err);background:#FCEDED;color:#8E2A2A}

/* 相关推荐 */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#C9DFF0}
.post-card img{width:100%;aspect-ratio:16/10;object-fit:cover;height:auto}
.post-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.badge{
  display:inline-block;padding:4px 10px;border-radius:999px;background:var(--c-primary-100);
  color:var(--c-primary);font-size:12.5px;font-weight:600;margin-bottom:12px;align-self:flex-start;
}
.post-card h3{font-size:17px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card p{font-size:14px;color:var(--c-text-2);margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--c-text-3)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-bg-deep);border-top:1px solid var(--c-line);padding:60px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand p{font-size:14px;color:var(--c-text-2);margin:16px 0 18px;max-width:300px}
.footer-contact div{font-size:13.5px;color:var(--c-text-2);margin-bottom:6px}
.footer-contact span{color:var(--c-text-3)}
.footer-col h4{font-size:14px;margin-bottom:16px;color:var(--c-text)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13.5px;color:var(--c-text-2)}
.footer-links a:hover{color:var(--c-primary)}
.footer-news a{display:block;padding-bottom:12px;margin-bottom:12px;border-bottom:1px dashed var(--c-line)}
.footer-news a:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.footer-news strong{display:block;font-size:13.5px;font-weight:600;color:var(--c-text);line-height:1.55;margin-bottom:4px}
.footer-news span{font-size:12.5px;color:var(--c-text-3)}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:var(--c-text-3);
}
.footer-bottom a{color:var(--c-text-2)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:100%}
  .nav-link{padding:0 12px;font-size:14.5px}
  .layout{grid-template-columns:210px 1fr;gap:40px}
}
@media (max-width:1023px){
  :root{--sp-section:64px}
  .container{padding:0 24px}
  .menu-btn{display:flex}
  .nav-list{display:none}
  .header-actions{margin-left:auto}
  .head-grid{grid-template-columns:1fr;gap:32px}
  .head-card img{height:200px}
  .layout{grid-template-columns:1fr;gap:32px}
  .side-nav{position:static;display:flex;flex-wrap:wrap;gap:8px;padding:14px}
  .side-nav-title{width:100%;margin-bottom:4px}
  .side-link{border-left:0;border-bottom:3px solid transparent;border-radius:var(--r-sm);padding:8px 12px}
  .side-link.is-current{border-left:0;border-bottom-color:var(--c-primary)}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--sp-section:48px;--nav-h:64px}
  .container{padding:0 18px}
  h1{font-size:28px}
  h2{font-size:22px}
  .page-head{padding:24px 0 40px}
  .head-lead{font-size:15.5px}
  .head-actions .btn{flex:1 1 100%}
  .figblock{grid-template-columns:1fr;gap:22px}
  .figblock.is-reverse .fig-media{order:0}
  .figblock.is-reverse .fig-text{order:1}
  .card-grid{grid-template-columns:1fr 1fr}
  .form-grid{grid-template-columns:1fr}
  .faq-item summary{font-size:16px;padding:16px 18px}
  .faq-body{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:519px){
  .card-grid{grid-template-columns:1fr}
  .cta-band{padding:24px 20px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
}

/* roulang page: article */
:root{
  --c-primary:#1C5D99;
  --c-primary-600:#15497A;
  --c-primary-100:#E8F1F9;
  --c-accent:#0FA3A0;
  --c-spark:#F2704A;
  --c-bg:#F5F8FB;
  --c-surface:#FFFFFF;
  --c-line:#E3EAF2;
  --c-text:#0F1E2E;
  --c-text-2:#4C5D70;
  --c-text-3:#8A99A8;
  --c-ok:#1E9E6A;
  --c-warn:#D89A00;
  --c-err:#D64545;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(15,30,46,.06),0 1px 3px rgba(15,30,46,.04);
  --sh-2:0 8px 24px rgba(23,58,94,.08);
  --sh-3:0 18px 48px rgba(23,58,94,.12);
  --sec-y:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3}
ul,ol{margin:0;padding:0}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部公告 ---------- */
.topbar{
  background:var(--c-primary-100);
  color:var(--c-primary-600);
  font-size:13.5px;
  border-bottom:1px solid var(--c-line);
}
.topbar-inner{display:flex;align-items:center;justify-content:center;gap:14px;min-height:42px;text-align:center;flex-wrap:wrap}
.topbar strong{color:var(--c-primary);font-weight:700}
.topbar a{font-weight:600;border-bottom:1px solid rgba(28,93,153,.35)}
.topbar a:hover{border-bottom-color:var(--c-primary)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-3)}
.header-inner{display:flex;align-items:center;gap:26px;min-height:76px;transition:min-height .2s ease}
.site-header.is-scrolled .header-inner{min-height:68px}
.logo{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto}
.logo-mark{
  position:relative;width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  overflow:hidden;
}
.logo-mark::before,.logo-mark::after{
  content:"";position:absolute;left:8px;height:3px;border-radius:3px;background:rgba(255,255,255,.94);
}
.logo-mark::before{top:11px;right:8px;transform:skewX(-26deg)}
.logo-mark::after{top:19px;right:15px;transform:skewX(-26deg)}
.logo-text{display:flex;flex-direction:column;line-height:1.08}
.logo-name{font-size:19px;font-weight:700;letter-spacing:.01em;color:var(--c-text)}
.logo-sub{font-size:11.5px;font-weight:500;color:var(--c-text-3);letter-spacing:.08em}
.nav-list{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center}
.nav-item{position:relative}
.nav-link{
  display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--c-text-2);position:relative;white-space:nowrap;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:8px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-item:hover .nav-link,
.nav-item:focus-within .nav-link,
.nav-item.is-active .nav-link{color:var(--c-primary)}
.nav-item:hover .nav-link::after,
.nav-item:focus-within .nav-link::after,
.nav-item.is-active .nav-link::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}

/* Mega 面板 */
.mega{
  position:absolute;top:calc(100% + 12px);right:0;width:min(720px,84vw);
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-3);overflow:hidden;z-index:70;
  opacity:0;visibility:hidden;transform:translateY(6px);pointer-events:none;
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
}
.mega::before{content:"";display:block;height:3px;background:linear-gradient(90deg,var(--c-primary),var(--c-accent))}
.nav-item:hover .mega,
.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto}
.mega-inner{display:grid;grid-template-columns:1fr 1fr .9fr;gap:18px;padding:22px 24px}
.mega-col-title{font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--c-text-3);margin-bottom:10px}
.mega-links{display:flex;flex-direction:column;gap:2px}
.mega-links a{
  display:flex;align-items:center;gap:8px;padding:7px 8px;border-radius:var(--r-sm);
  font-size:14px;color:var(--c-text-2);transition:background .18s ease,color .18s ease;
}
.mega-links a i{
  width:6px;height:6px;border-radius:2px;background:var(--c-accent);flex:0 0 auto;transform:skewX(-18deg);
}
.mega-links a:hover{background:var(--c-primary-100);color:var(--c-primary)}
.mega-news{display:flex;flex-direction:column;gap:10px}
.mega-news a{display:block;padding:9px 10px;border-radius:var(--r-sm);transition:background .18s ease}
.mega-news a strong{display:block;font-size:13.5px;font-weight:600;color:var(--c-text);line-height:1.45}
.mega-news a span{display:block;font-size:12px;color:var(--c-text-3);margin-top:3px}
.mega-news a:hover{background:var(--c-primary-100)}
.mega-card{border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;background:#fff}
.mega-card img{width:100%;height:104px;object-fit:cover}
.mega-card-txt{padding:12px 13px 14px}
.mega-card-txt p{font-size:13px;color:var(--c-text-2);margin:0 0 8px;line-height:1.6}
.text-arrow{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--c-primary)}
.text-arrow span{transition:transform .18s ease}
.text-arrow:hover span{transform:translateX(3px)}

/* 汉堡按钮 */
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-md);
  background:#fff;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text-2);transition:transform .2s ease,opacity .2s ease}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,30,46,.45);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-md);border:1px solid transparent;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-600);box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-primary:disabled{background:#B9C6D4;cursor:not-allowed;box-shadow:none;transform:none}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-line)}
.btn-ghost:hover{border-color:var(--c-primary);background:var(--c-primary-100)}
.btn-sm{height:42px;padding:0 20px;font-size:14.5px}
.btn-block{width:100%}

/* ---------- 页面主区 ---------- */
main{padding-bottom:0}
.crumb-wrap{background:#fff;border-bottom:1px solid var(--c-line)}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;list-style:none;padding:16px 0;font-size:13.5px;color:var(--c-text-3)}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"›";color:var(--c-text-3)}
.crumb a{color:var(--c-text-2)}
.crumb a:hover{color:var(--c-primary)}
.crumb li[aria-current]{color:var(--c-text-3);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-head{background:#fff;padding:34px 0 40px;border-bottom:1px solid var(--c-line)}
.article-head h1{font-size:34px;line-height:1.28;letter-spacing:-.01em;max-width:900px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;
  background:var(--c-primary-100);color:var(--c-primary);font-size:12.5px;font-weight:600;
}
.meta-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:18px;font-size:13.5px;color:var(--c-text-3)}
.meta-row .sep{width:1px;height:14px;background:var(--c-line)}
.head-lede{margin-top:16px;font-size:16px;color:var(--c-text-2);max-width:820px}

/* ---------- 文章布局 ---------- */
.article-section{padding:56px 0 var(--sec-y)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start}
.article-main{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:40px 44px 44px;
}
.article-body{max-width:760px;font-size:16px;line-height:1.9;color:var(--c-text)}
.article-body>p:first-of-type{font-size:17px;color:var(--c-text-2)}
.article-body h2{
  position:relative;font-size:25px;line-height:1.4;margin:44px 0 16px;padding-left:14px;color:var(--c-text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:var(--c-primary);
}
.article-body h3{font-size:19px;margin:30px 0 12px;color:var(--c-text);font-weight:700}
.article-body h4{font-size:17px;margin:24px 0 10px;color:var(--c-text)}
.article-body p{margin:0 0 1em}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(28,93,153,.4)}
.article-body a:hover{color:var(--c-primary-600);border-bottom-color:var(--c-primary-600)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0;list-style:none}
.article-body li{position:relative;padding-left:22px;margin-bottom:9px;line-height:1.8}
.article-body ul>li::before{
  content:"";position:absolute;left:2px;top:12px;width:7px;height:7px;border-radius:2px;
  background:var(--c-primary);transform:skewX(-16deg);
}
.article-body ol{counter-reset:li}
.article-body ol>li{counter-increment:li}
.article-body ol>li::before{
  content:counter(li);position:absolute;left:0;top:2px;font-size:13px;font-weight:700;color:var(--c-accent);
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--c-primary-100);
  border-left:3px solid var(--c-primary);border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--c-text-2);
}
.article-body blockquote p:last-child{margin:0}
.article-body img{border-radius:var(--r-md);margin:22px 0 8px;width:100%;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption,.article-body .caption{
  font-size:12.5px;color:var(--c-text-3);text-align:center;margin-top:8px;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px;
  font-variant-numeric:tabular-nums;display:block;overflow-x:auto;white-space:nowrap;
}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:11px 14px;text-align:left}
.article-body thead th{background:var(--c-primary-100);color:var(--c-primary-600);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FAFCFE}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:34px 0}
.article-body code{
  background:var(--c-primary-100);color:var(--c-primary-600);padding:2px 6px;border-radius:6px;font-size:14px;
}

/* 侧栏目录 */
.article-side{position:sticky;top:106px;display:flex;flex-direction:column;gap:18px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);padding:22px 22px 24px;
}
.side-title{
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--c-text-3);
  margin-bottom:14px;text-transform:uppercase;
}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:420px;overflow:auto}
.toc-list a{
  display:block;padding:7px 10px 7px 12px;border-left:2px solid transparent;border-radius:0 6px 6px 0;
  font-size:14px;color:var(--c-text-2);line-height:1.5;transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.toc-list a.toc-sub{padding-left:24px;font-size:13.5px;color:var(--c-text-3)}
.toc-list a:hover{background:var(--c-primary-100);color:var(--c-primary)}
.toc-list a.is-current{border-left-color:var(--c-primary);background:var(--c-primary-100);color:var(--c-primary);font-weight:600}
.side-cta{background:var(--c-primary-100);border-color:#D5E5F3}
.side-cta h3{font-size:17px;margin-bottom:8px}
.side-cta p{font-size:14px;color:var(--c-text-2);margin-bottom:16px}
.side-points{display:flex;flex-direction:column;gap:8px;margin:0 0 4px}
.side-points span{display:flex;gap:8px;font-size:13.5px;color:var(--c-text-2)}
.side-points span::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--c-accent);margin-top:8px;flex:0 0 auto;transform:skewX(-16deg)}

/* 标签行 */
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:38px;padding-top:26px;border-top:1px dashed var(--c-line)}
.tag-row>span{font-size:13px;color:var(--c-text-3)}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  background:var(--c-primary-100);color:var(--c-primary);font-size:12.5px;font-weight:600;
  transition:background .18s ease,color .18s ease;
}
.tag:hover{background:var(--c-primary);color:#fff}

/* 空状态 */
.empty-state{
  text-align:center;padding:60px 24px;border:1px dashed var(--c-line);border-radius:var(--r-md);
  background:#FAFCFE;
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;background:var(--c-primary-100);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-size:22px;font-weight:700;
}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--c-text-2);font-size:15px;margin-bottom:20px}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec-y) 0}
.section-alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head h2{
  position:relative;font-size:27px;line-height:1.35;padding-left:14px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;border-radius:3px;background:var(--c-primary);
}
.section-head p{color:var(--c-text-2);font-size:15px;margin:10px 0 0 14px;max-width:640px}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFE1F0}
.card-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;color:var(--c-text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.card-meta{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:6px;font-size:12.5px;color:var(--c-text-3)}

/* 上下篇 */
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:44px}
.pn-item{
  display:flex;flex-direction:column;gap:6px;padding:20px 22px;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pn-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFE1F0}
.pn-item span{font-size:12.5px;color:var(--c-text-3)}
.pn-item strong{
  font-size:15px;color:var(--c-text);font-weight:600;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.pn-item.is-next{text-align:right}

/* ---------- CTA 带 ---------- */
.cta-band{
  margin-top:44px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);overflow:hidden;
}
.cta-band-inner{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:36px;padding:34px 36px;
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center right;
}
.cta-copy h2{font-size:24px;line-height:1.4}
.cta-copy p{color:var(--c-text-2);font-size:15px;margin:12px 0 20px}
.cta-copy .btn-row{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .form-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1)}
.form-title{font-size:16px;font-weight:700;margin-bottom:14px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1 / -1}
.field label{font-size:13.5px;font-weight:600;color:var(--c-text-2)}
.field label em{color:var(--c-spark);font-style:normal;margin-left:2px}
.field input,.field select,.field textarea{
  height:48px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:#fff;font-size:14.5px;transition:border-color .18s ease,box-shadow .18s ease;
  width:100%;
}
.field textarea{height:auto;padding:12px 14px;resize:vertical;min-height:88px}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(28,93,153,.16);outline:none;
}
.field .hint{font-size:12.5px;color:var(--c-text-3)}
.form-foot{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.form-note{font-size:12.5px;color:var(--c-text-3);line-height:1.6}
.form-note a{color:var(--c-primary);border-bottom:1px solid rgba(28,93,153,.35)}
.form-alert{
  display:none;align-items:flex-start;gap:10px;padding:11px 14px;border-radius:var(--r-sm);
  font-size:13.5px;background:#EAF7F1;border-left:3px solid var(--c-ok);color:#15694A;
}
.form-alert.is-visible{display:flex}
.btn.is-loading{pointer-events:none;opacity:.85}
.btn.is-loading::after{
  content:"";width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(255,255,255,.45);border-top-color:#fff;animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 页脚 ---------- */
.site-footer{background:#EEF3F9;border-top:1px solid var(--c-line);margin-top:0;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--c-text-2);max-width:320px;line-height:1.75}
.footer-contact{margin-top:16px;display:flex;flex-direction:column;gap:6px;font-size:13.5px;color:var(--c-text-2)}
.footer-contact span{color:var(--c-text-3)}
.footer-contact a{color:var(--c-primary);border-bottom:1px solid rgba(28,93,153,.35)}
.footer-col h4{font-size:14px;font-weight:700;color:var(--c-text);margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-links a{font-size:13.5px;color:var(--c-text-2);transition:color .18s ease}
.footer-links a:hover{color:var(--c-primary)}
.footer-news{display:flex;flex-direction:column;gap:12px}
.footer-news a{display:block}
.footer-news a strong{display:block;font-size:13.5px;font-weight:600;color:var(--c-text);line-height:1.5}
.footer-news a span{display:block;font-size:12.5px;color:var(--c-text-3);margin-top:3px}
.footer-news a:hover strong{color:var(--c-primary)}
.footer-bottom{
  margin-top:52px;padding:20px 0 26px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.footer-bottom a{color:var(--c-text-2)}
.footer-bottom a:hover{color:var(--c-primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:32px}
}
@media (max-width:1023px){
  :root{--sec-y:64px}
  .container{padding:0 24px}
  .article-layout{grid-template-columns:1fr}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side>*{flex:1 1 300px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band-inner{grid-template-columns:1fr;padding:28px}
  .menu-toggle{display:inline-flex}
  .nav-list{
    position:fixed;top:0;right:0;height:100vh;width:86vw;max-width:360px;
    background:#fff;flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:0;padding:76px 20px 32px;z-index:90;overflow-y:auto;
    box-shadow:var(--sh-3);transform:translateX(100%);transition:transform .24s ease;
  }
  .nav-list.is-open{transform:translateX(0)}
  .nav-item{width:100%}
  .nav-link{height:52px;padding:0 6px;font-size:16px;width:100%;border-bottom:1px solid var(--c-line)}
  .nav-link::after{display:none}
  .mega{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border:0;border-radius:0;pointer-events:auto;display:none;
  }
  .nav-item:hover .mega,.nav-item:focus-within .mega{display:block}
  .mega-inner{grid-template-columns:1fr;padding:0 0 14px}
  .mega-card{display:none}
}
@media (max-width:767px){
  .header-actions .btn{display:none}
  .article-main{padding:26px 20px 30px;border-radius:var(--r-md)}
  .article-head h1{font-size:26px}
  .article-body h2{font-size:21px;margin-top:34px}
  .article-body h3{font-size:17.5px}
  .card-grid{grid-template-columns:1fr}
  .prevnext{grid-template-columns:1fr}
  .pn-item.is-next{text-align:left}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .section-head h2{font-size:22px}
  .cta-copy h2{font-size:21px}
}
@media (max-width:519px){
  .container{padding:0 18px}
  .article-body{font-size:15.5px}
  .article-head h1{font-size:23px}
  .btn{width:100%}
  .btn-row .btn{width:100%}
  .topbar-inner{font-size:12.5px;padding:6px 0}
}

/* roulang page: category2 */
:root{
  --c-primary:#1C5D99;
  --c-primary-600:#15497A;
  --c-primary-100:#E8F1F9;
  --c-accent:#0FA3A0;
  --c-spark:#F2704A;
  --c-bg:#F5F8FB;
  --c-surface:#FFFFFF;
  --c-line:#E3EAF2;
  --c-text:#0F1E2E;
  --c-text-2:#4C5D70;
  --c-text-3:#8A99A8;
  --c-ok:#1E9E6A;
  --c-warn:#D89A00;
  --c-err:#D64545;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(15,30,46,.06),0 1px 3px rgba(15,30,46,.04);
  --sh-2:0 8px 24px rgba(23,58,94,.08);
  --sh-3:0 18px 48px rgba(23,58,94,.12);
  --fs-display:44px;
  --fs-h1:36px;
  --fs-h2:28px;
  --fs-h3:20px;
  --fs-body:16px;
  --fs-sm:14px;
  --fs-xs:12.5px;
  --sec-y:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:var(--fs-body);
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none}
a:hover{color:var(--c-primary-600)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--sec-y) 0}
.section-head{margin-bottom:36px;max-width:760px}
.section-head h2{
  font-size:var(--fs-h2);
  line-height:1.3;
  font-weight:700;
  padding-left:14px;
  border-left:3px solid var(--c-primary);
  letter-spacing:.2px;
}
.section-head p{margin-top:14px;color:var(--c-text-2);font-size:var(--fs-body)}
.section-head.split{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;max-width:none}
.text-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--c-primary)}
.text-link .arrow{transition:transform .2s ease}
.text-link:hover .arrow{transform:translateX(3px)}
.eyebrow{
  display:inline-block;
  font-size:var(--fs-xs);
  font-weight:600;
  letter-spacing:.14em;
  color:var(--c-accent);
  text-transform:uppercase;
  margin-bottom:14px;
}
/* ---------- 顶部公告 ---------- */
.topbar{
  background:var(--c-primary-600);
  color:#EAF3FB;
  font-size:var(--fs-sm);
}
.topbar .container{
  display:flex;align-items:center;justify-content:center;gap:14px;
  min-height:42px;padding-top:6px;padding-bottom:6px;text-align:center;
}
.topbar strong{font-weight:600;color:#fff}
.topbar a{color:#fff;text-decoration:underline;text-underline-offset:3px}
.topbar a:hover{color:#DCEBF8}
/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-3)}
.header-inner{display:flex;align-items:center;gap:20px;height:76px;transition:height .2s ease}
.site-header.is-scrolled .header-inner{height:68px}
.logo{display:inline-flex;align-items:center;gap:11px;flex:none}
.logo-mark{
  width:36px;height:36px;border-radius:11px;flex:none;position:relative;overflow:hidden;
  background:var(--c-primary);
}
.logo-mark::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(115deg,transparent 34%,var(--c-accent) 34% 50%,transparent 50%),
    linear-gradient(115deg,transparent 58%,rgba(255,255,255,.9) 58% 72%,transparent 72%);
}
.logo-mark::after{
  content:"";position:absolute;left:7px;bottom:8px;width:14px;height:3px;border-radius:2px;
  background:rgba(255,255,255,.85);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-name{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--c-text)}
.logo-sub{font-size:11.5px;font-weight:400;color:var(--c-text-3);letter-spacing:.06em}
.nav-wrap{flex:1;display:flex;justify-content:center}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-item{position:relative}
.nav-link{
  display:block;padding:12px 14px;font-size:15px;font-weight:500;color:var(--c-text);
  position:relative;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-item:hover>.nav-link,
.nav-item.is-active>.nav-link{color:var(--c-primary)}
.nav-item:hover>.nav-link::after,
.nav-item.is-active>.nav-link::after,
.nav-item:focus-within>.nav-link::after{transform:scaleX(1)}
.nav-cta{flex:none}
.mega{
  position:absolute;top:100%;left:50%;
  width:700px;margin-top:8px;
  background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;transform:translate(-50%,6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s;
  overflow:hidden;
}
.mega::before{
  content:"";display:block;height:3px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
}
.nav-item:hover .mega,
.nav-item:focus-within .mega,
.nav-item.is-open .mega{opacity:1;visibility:visible;transform:translate(-50%,0)}
.mega-inner{display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:22px;padding:22px 24px 24px}
.mega-col-title{font-size:var(--fs-xs);font-weight:700;letter-spacing:.08em;color:var(--c-text-3);margin-bottom:8px}
.mega-links a{
  display:flex;align-items:center;gap:9px;padding:7px 10px;border-radius:var(--r-sm);
  font-size:var(--fs-sm);color:var(--c-text-2);transition:background .18s,color .18s;
}
.mega-links a i{width:6px;height:6px;border-radius:2px;background:var(--c-accent);flex:none}
.mega-links a:hover{background:var(--c-primary-100);color:var(--c-primary)}
.mega-news a{
  display:block;padding:10px;border-radius:var(--r-sm);transition:background .18s;
}
.mega-news a strong{display:block;font-size:var(--fs-sm);color:var(--c-text);line-height:1.5}
.mega-news a span{display:block;margin-top:4px;font-size:var(--fs-xs);color:var(--c-text-3)}
.mega-news a:hover{background:var(--c-primary-100)}
.mega-card{
  margin-top:14px;border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;
  background:var(--c-bg);
}
.mega-card img{width:100%;height:104px;object-fit:cover;border-radius:0}
.mega-card-body{padding:12px 14px 14px}
.mega-card-body strong{display:block;font-size:var(--fs-sm)}
.mega-card-body p{font-size:var(--fs-xs);color:var(--c-text-2);margin:3px 0 8px}
.mega-card-body .text-link{font-size:var(--fs-xs)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  background:var(--c-surface);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;position:relative}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-text);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-mask{
  position:fixed;inset:0;background:rgba(15,30,46,.45);opacity:0;visibility:hidden;
  transition:.2s;z-index:70;
}
.nav-mask.is-open{opacity:1;visibility:visible}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .18s,box-shadow .18s,transform .18s,border-color .18s,color .18s;
  text-align:center;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-primary:disabled{background:#B9C6D4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-line)}
.btn-ghost:hover{border-color:var(--c-primary);background:var(--c-primary-100);color:var(--c-primary)}
.btn-ghost:active{transform:translateY(1px)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
/* ---------- 分类页头部（版式 B） ---------- */
.page-hero{background:var(--c-surface);padding:56px 0 72px;border-bottom:1px solid var(--c-line)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:var(--fs-sm);color:var(--c-text-3);margin-bottom:22px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"›";color:var(--c-text-3)}
.breadcrumb a{color:var(--c-text-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb [aria-current]{color:var(--c-text-3)}
.page-hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.page-hero h1{
  font-size:var(--fs-h1);line-height:1.24;font-weight:700;letter-spacing:.2px;margin-bottom:18px;
}
.page-hero .lead{font-size:17px;color:var(--c-text-2);max-width:620px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px}
.hero-points li{
  display:flex;align-items:center;gap:9px;font-size:var(--fs-sm);color:var(--c-text-2);
}
.hero-points li::before{
  content:"";width:16px;height:16px;border-radius:5px;background:var(--c-primary-100);
  border:1px solid rgba(28,93,153,.35);flex:none;
}
.page-hero-aside{position:relative}
.page-hero-aside>img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);
  border:1px solid var(--c-line);box-shadow:var(--sh-2);
}
.aside-card{
  position:relative;margin:-52px 0 0 28px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-2);
  padding:22px 24px;overflow:hidden;
}
.aside-card::before{
  content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:var(--c-spark);
}
.aside-card strong{display:block;font-size:var(--fs-h3);line-height:1.45;margin-bottom:8px}
.aside-card p{font-size:var(--fs-sm);color:var(--c-text-2)}
.aside-card .mini-stats{display:flex;gap:22px;margin-top:16px;padding-top:14px;border-top:1px solid var(--c-line)}
.aside-card .mini-stats span{font-size:var(--fs-xs);color:var(--c-text-3)}
.aside-card .mini-stats b{
  display:block;font-size:22px;color:var(--c-primary);font-variant-numeric:tabular-nums;
}
/* ---------- 流程带 ---------- */
.steps-section{background:var(--c-bg)}
.step-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.step-band li{padding:30px 26px;border-right:1px solid var(--c-line);position:relative}
.step-band li:last-child{border-right:0}
.step-num{
  display:block;font-size:40px;font-weight:800;line-height:1;letter-spacing:-.02em;
  color:transparent;-webkit-text-stroke:2px rgba(28,93,153,.35);
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.step-band h3{font-size:17px;font-weight:700;margin-bottom:8px}
.step-band p{font-size:var(--fs-sm);color:var(--c-text-2)}
/* ---------- 卡片矩阵 ---------- */
.matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.matrix-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);padding:26px;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.matrix-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary-100)}
.matrix-card.is-wide{grid-column:span 2;padding:0;overflow:hidden}
.matrix-card.is-wide .wide-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.matrix-card.is-wide .wide-body{padding:26px}
.matrix-card.is-tall{grid-row:span 2}
.card-icon{
  width:46px;height:46px;border-radius:12px;background:var(--c-primary-100);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;flex:none;
}
.card-icon i{width:18px;height:18px;border-radius:5px;background:var(--c-primary);display:block;position:relative}
.card-icon i::after{
  content:"";position:absolute;right:-6px;top:5px;width:10px;height:3px;border-radius:2px;background:var(--c-accent);
}
.matrix-card h3{font-size:var(--fs-h3);line-height:1.45;margin-bottom:10px}
.matrix-card p{font-size:var(--fs-sm);color:var(--c-text-2);margin-bottom:18px}
.matrix-card .text-link{margin-top:auto;font-size:var(--fs-sm)}
.wide-body .tag{display:inline-block;margin-bottom:14px}
.point-list{margin:4px 0 20px}
.point-list li{
  position:relative;padding-left:20px;font-size:var(--fs-sm);color:var(--c-text-2);line-height:1.8;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:2px;background:var(--c-primary);
}
.tag{
  display:inline-block;padding:4px 10px;border-radius:999px;font-size:var(--fs-xs);
  background:var(--c-primary-100);color:var(--c-primary);font-weight:600;
}
/* ---------- 场景与数据条 ---------- */
.scenario{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.scenario-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px}
.scenario-col h2{
  font-size:26px;line-height:1.35;font-weight:700;padding-left:14px;
  border-left:3px solid var(--c-primary);margin-bottom:18px;
}
.scenario-col p{color:var(--c-text-2);font-size:15.5px;margin-bottom:14px}
.scenario-col p:last-child{margin-bottom:0}
.data-bar{margin-top:56px;border-top:1px solid var(--c-line);padding-top:34px}
.data-bar-inner{display:grid;grid-template-columns:repeat(3,1fr)}
.data-item{padding:0 26px;border-right:1px solid var(--c-line);text-align:left}
.data-item:last-child{border-right:0}
.data-item:first-child{padding-left:0}
.data-num{
  font-size:38px;font-weight:700;line-height:1.1;color:var(--c-spark);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.data-num small{font-size:16px;font-weight:600;margin-left:4px;color:var(--c-text-2)}
.data-item span{display:block;margin-top:8px;font-size:var(--fs-sm);color:var(--c-text-3)}
/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;transition:border-color .2s;
}
.faq-item:hover{border-color:var(--c-primary-100)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;text-align:left;cursor:pointer;
  padding:20px 24px;font-size:17px;font-weight:600;line-height:1.55;color:var(--c-text);
  transition:background .18s;
}
.faq-q:hover{background:var(--c-primary-100)}
.faq-q .plus{
  position:relative;width:20px;height:20px;flex:none;transition:transform .2s ease;
}
.faq-q .plus::before,
.faq-q .plus::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
}
.faq-q .plus::before{left:0;top:9px;width:20px;height:2px}
.faq-q .plus::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg)}
.faq-a{display:none;padding:0 24px 22px;font-size:var(--fs-body);line-height:1.8;color:var(--c-text-2)}
.faq-item.is-open .faq-a{display:block;padding-top:2px}
/* ---------- CTA 表单 ---------- */
.cta-section{padding-bottom:var(--sec-y)}
.cta-band{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:38px 40px;
  display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start;
}
.cta-band h2{font-size:26px;line-height:1.35;font-weight:700;margin-bottom:12px}
.cta-band .cta-sub{font-size:var(--fs-sm);color:var(--c-text-2);margin-bottom:18px}
.cta-band .cta-contact{font-size:var(--fs-sm);color:var(--c-text-2)}
.cta-band .cta-contact a{text-decoration:underline;text-underline-offset:3px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:var(--fs-sm);font-weight:600;color:var(--c-text-2)}
.field label .req{color:var(--c-err);margin-left:2px}
.field input,.field select{
  height:48px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:var(--c-surface);font-size:15px;color:var(--c-text);
  transition:border-color .18s,box-shadow .18s;
}
.field input::placeholder{color:#A9B6C3}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(28,93,153,.2);
}
.field .err-msg{display:none;font-size:var(--fs-xs);color:var(--c-err)}
.field.is-error input,.field.is-error select{border-color:var(--c-err)}
.field.is-error .err-msg{display:block}
.form-actions{grid-column:1/-1}
.form-actions .btn{width:100%}
.form-note{grid-column:1/-1;font-size:var(--fs-xs);color:var(--c-text-3);line-height:1.7}
.form-note a{text-decoration:underline;text-underline-offset:3px}
.form-alert{
  grid-column:1/-1;display:none;padding:12px 16px;border-radius:var(--r-sm);
  font-size:var(--fs-sm);border-left:3px solid var(--c-ok);background:#EAF7F1;color:#14603F;
}
.form-alert.is-error{border-left-color:var(--c-err);background:#FBEDEC;color:#8E2A26}
.form-alert.is-visible{display:block}
.back-links{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:34px;font-size:var(--fs-sm)}
/* ---------- 页脚 ---------- */
.site-footer{
  background:#EEF3F9;border-top:1px solid var(--c-line);padding:64px 0 26px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:38px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:var(--fs-sm);color:var(--c-text-2);max-width:320px}
.footer-contact{margin-top:18px;font-size:var(--fs-sm);color:var(--c-text-2)}
.footer-contact div{margin-bottom:6px}
.footer-contact span{color:var(--c-text-3)}
.footer-contact a{text-decoration:underline;text-underline-offset:3px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:var(--fs-sm);color:var(--c-text-2)}
.footer-links a:hover{color:var(--c-primary)}
.footer-news{display:grid;gap:14px}
.footer-news a{display:block}
.footer-news strong{
  display:block;font-size:var(--fs-sm);font-weight:600;color:var(--c-text);line-height:1.6;
}
.footer-news span{display:block;margin-top:4px;font-size:var(--fs-xs);color:var(--c-text-3)}
.footer-news a:hover strong{color:var(--c-primary)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;
  font-size:var(--fs-xs);color:var(--c-text-3);
}
.footer-bottom a{color:var(--c-text-3);text-decoration:underline;text-underline-offset:3px}
.footer-bottom a:hover{color:var(--c-primary)}
/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .page-hero-grid{gap:40px}
}
@media (max-width:1023px){
  :root{--sec-y:64px;--fs-h1:32px;--fs-h2:25px}
  .container{padding:0 24px}
  .nav-toggle{display:inline-flex;order:3}
  .nav-cta{display:none}
  .nav-wrap{
    position:fixed;top:0;right:0;height:100vh;width:86vw;max-width:380px;
    background:var(--c-surface);box-shadow:var(--sh-3);z-index:80;
    transform:translateX(100%);transition:transform .26s ease;
    padding:74px 20px 32px;overflow-y:auto;display:block;
  }
  .nav-wrap.is-open{transform:translateX(0)}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{padding:14px 12px;font-size:16px}
  .nav-link::after{left:12px;right:auto;width:0;bottom:8px;transition:width .2s ease;transform:none}
  .nav-item:hover>.nav-link::after,
  .nav-item.is-active>.nav-link::after,
  .nav-item:focus-within>.nav-link::after{width:22px;transform:none}
  .mega{
    position:static;width:auto;margin:0 0 10px;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border:0;border-radius:0;display:none;
  }
  .mega::before{display:none}
  .nav-item.is-open .mega{display:block}
  .mega-inner{grid-template-columns:1fr;padding:6px 0 12px;gap:18px}
  .page-hero-grid{grid-template-columns:1fr;gap:34px}
  .page-hero-aside>img{aspect-ratio:16/10}
  .aside-card{margin:-40px 20px 0}
  .step-band{grid-template-columns:1fr 1fr}
  .step-band li{border-right:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
  .step-band li:nth-child(2n){border-right:0}
  .step-band li:nth-last-child(-n+2){border-bottom:0}
  .matrix{grid-template-columns:1fr 1fr}
  .matrix-card.is-wide{grid-column:span 2}
  .scenario-grid{grid-template-columns:1fr;gap:34px}
  .data-bar-inner{grid-template-columns:repeat(3,1fr)}
  .cta-band{grid-template-columns:1fr;gap:30px;padding:30px 26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--sec-y:52px;--fs-h1:29px;--fs-h2:23px}
  .page-hero{padding:36px 0 52px}
  .step-band{grid-template-columns:1fr}
  .step-band li{border-right:0;border-bottom:1px solid var(--c-line);padding:24px 22px}
  .step-band li:last-child{border-bottom:0}
  .matrix{grid-template-columns:1fr}
  .matrix-card.is-wide{grid-column:span 1}
  .matrix-card.is-tall{grid-row:span 1}
  .data-bar-inner{grid-template-columns:1fr;gap:22px}
  .data-item{padding:0;border-right:0;border-bottom:1px solid var(--c-line);padding-bottom:18px}
  .data-item:last-child{border-bottom:0;padding-bottom:0}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .faq-q{font-size:16px;padding:18px 18px}
  .faq-a{padding:0 18px 20px}
}
@media (max-width:575px){
  .container{padding:0 18px}
  .topbar .container{display:block;text-align:center;line-height:1.6}
  .btn{width:100%}
  .btn-row{gap:12px}
  .hero-points{flex-direction:column;gap:10px}
  .aside-card{margin:-28px 0 0;padding:20px}
  .back-links{gap:10px 18px}
}