/* roulang page: index */
:root{
  --primary:#1F5BD7;
  --primary-dark:#1749B0;
  --primary-soft:rgba(31,91,215,.10);
  --accent:#FF6A2B;
  --accent-dark:#E85618;
  --teal:#12B39A;
  --bg:#F4F7FC;
  --card:#FFFFFF;
  --line:#E3E9F2;
  --soft:#EDF2FA;
  --ink:#0E1726;
  --text:#47536B;
  --muted:#8794AB;
  --danger:#D8443C;
  --r-card:16px;
  --r-img:12px;
  --r-hero:20px;
  --r-btn:10px;
  --sh:0 8px 24px rgba(16,42,89,.08);
  --sh-hover:0 14px 32px rgba(16,42,89,.14);
  --gap:24px;
  --ease:.22s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:'PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--primary-dark);text-decoration:underline}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3}
h1{font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.25}
h2{font-size:clamp(22px,2.6vw,30px)}
h3{font-size:18px;font-weight:600}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.section{padding:44px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-head .head-text{max-width:720px}
.section-head p{margin:8px 0 0;font-size:15px;color:var(--muted)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--primary);background:var(--primary-soft);border-radius:999px;padding:5px 12px;margin-bottom:14px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary)}
.more-link{font-size:14px;font-weight:600;white-space:nowrap}
.more-link::after{content:" →";transition:transform var(--ease);display:inline-block}
.more-link:hover::after{transform:translateX(3px)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:11px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(31,91,215,.24)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 10px 24px rgba(31,91,215,.3)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(255,106,43,.26)}
.btn-accent:hover{background:var(--accent-dark);color:#fff;text-decoration:none;transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--primary);border-color:#C9D8F5}
.btn-ghost:hover{background:var(--soft);color:var(--primary-dark);text-decoration:none;transform:translateY(-1px)}
.btn-outline-light{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.16);color:#fff;text-decoration:none;transform:translateY(-1px)}
.btn-block{width:100%}
.btn svg{flex:0 0 auto}

/* 标签 */
.chip{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:4px 11px;border-radius:999px;background:var(--soft);color:var(--primary);line-height:1.6}
.chip-accent{background:rgba(255,106,43,.12);color:#C94A12}
.chip-teal{background:rgba(18,179,154,.13);color:#0B8474}
.chip-grey{background:#F1F4FA;color:var(--muted)}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--ease)}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,42,89,.08)}
.nav-inner{display:flex;align-items:center;gap:28px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--ink);letter-spacing:.01em}
.logo:hover{color:var(--primary);text-decoration:none}
.logo-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--primary),#3E7BEA);display:grid;place-items:center;flex:0 0 auto;box-shadow:0 6px 14px rgba(31,91,215,.28)}
.logo-mark svg{width:18px;height:18px;fill:#fff}
.logo em{font-style:normal;color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-link{position:relative;display:inline-block;padding:8px 0;font-size:15px;font-weight:500;color:var(--text)}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;background:var(--primary);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform var(--ease)}
.nav-link:hover,.nav-link.active{color:var(--primary);text-decoration:none}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-actions .btn{min-height:42px;padding:10px 18px;font-size:14px}
.menu-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;background:#fff}
.menu-toggle svg{width:20px;height:20px;stroke:var(--ink);stroke-width:2;fill:none}
.menu-toggle:hover{background:var(--soft)}
.drawer{position:fixed;inset:72px 0 0 0;background:#fff;z-index:55;padding:22px 18px 28px;transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity var(--ease),transform var(--ease),visibility var(--ease);overflow-y:auto}
.drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:18px}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 14px;border-radius:var(--r-btn);font-size:16px;font-weight:500;color:var(--ink);border:1px solid transparent}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--soft);color:var(--primary);text-decoration:none;border-color:#D8E3F8}
.drawer-foot{border-top:1px solid var(--line);padding-top:18px}

/* Hero */
.hero-wrap{padding-top:28px}
.hero{position:relative;display:flex;flex-direction:column;justify-content:space-between;min-height:520px;border-radius:var(--r-hero);overflow:hidden;background-color:#0E1726;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;box-shadow:var(--sh)}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(14,23,38,.95) 0%,rgba(14,23,38,.82) 42%,rgba(14,23,38,.32) 100%);z-index:1}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center;padding:52px 48px 24px}
.hero-text h1{color:#fff;max-width:14em}
.hero-lead{margin:16px 0 0;font-size:clamp(15px,1.6vw,17px);color:rgba(255,255,255,.86);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-points span{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:rgba(255,255,255,.85);background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:6px 13px}
.hero-points svg{width:14px;height:14px;fill:var(--teal)}
.hero-visual{position:relative}
.hero-visual .main-shot{border-radius:14px;overflow:hidden;box-shadow:0 18px 44px rgba(6,16,34,.42);border:1px solid rgba(255,255,255,.16)}
.hero-visual .main-shot img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-visual .float-shot{position:absolute;right:-10px;bottom:-26px;width:46%;border-radius:12px;overflow:hidden;border:3px solid rgba(255,255,255,.92);box-shadow:0 16px 34px rgba(6,16,34,.4)}
.hero-visual .float-shot img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-rail{position:relative;z-index:2;display:flex;gap:12px;overflow-x:auto;padding:26px 48px 34px;scrollbar-width:none}
.hero-rail::-webkit-scrollbar{display:none}
.hero-thumb{position:relative;flex:0 0 auto;width:150px;border-radius:var(--r-img);overflow:hidden;border:1px solid rgba(255,255,255,.24);transition:transform var(--ease),border-color var(--ease)}
.hero-thumb img{width:100%;height:84px;object-fit:cover;opacity:.9}
.hero-thumb span{position:absolute;left:0;right:0;bottom:0;padding:5px 9px;font-size:12px;font-weight:600;color:#fff;background:linear-gradient(180deg,transparent,rgba(8,16,30,.88))}
.hero-thumb:hover{transform:translateY(-3px);border-color:#fff}
.hero-thumb:hover img{opacity:1}

/* 快捷入口条 */
.quick-bar{position:relative;z-index:5;margin-top:-34px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh);padding:20px 24px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.quick-title{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:700;color:var(--ink);white-space:nowrap}
.quick-title svg{width:18px;height:18px;fill:var(--primary)}
.quick-form{flex:1 1 320px;display:flex;gap:10px;min-width:260px}
.quick-form input{flex:1;min-height:46px;padding:0 16px;border-radius:var(--r-btn);border:1px solid var(--line);background:#FBFCFE;font-size:15px;color:var(--ink);transition:border-color var(--ease),box-shadow var(--ease)}
.quick-form input::placeholder{color:#A9B4C7}
.quick-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(31,91,215,.14);background:#fff}
.quick-tags{display:flex;flex-wrap:wrap;gap:8px}
.quick-tags a{font-size:13px;font-weight:500;color:var(--text);background:var(--soft);border-radius:999px;padding:6px 13px;transition:background var(--ease),color var(--ease)}
.quick-tags a:hover{background:#DDE8FB;color:var(--primary);text-decoration:none}

/* 横滑片库 */
.rail-head{display:flex;align-items:center;gap:12px}
.rail-nav{display:flex;gap:8px;margin-left:auto}
.rail-btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;display:grid;place-items:center;transition:background var(--ease),border-color var(--ease),transform var(--ease)}
.rail-btn svg{width:16px;height:16px;stroke:var(--primary);stroke-width:2;fill:none}
.rail-btn:hover{background:var(--soft);border-color:#C9D8F5;transform:translateY(-1px)}
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 14px;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rail-card{flex:0 0 260px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#D2DEF5;text-decoration:none}
.rail-card .shot{overflow:hidden}
.rail-card .shot img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.rail-card:hover .shot img{transform:scale(1.03)}
.rail-card .body{padding:16px 18px 18px}
.rail-card h3{font-size:17px}
.rail-card:hover h3{color:var(--primary)}
.rail-card .meta{margin-top:8px;font-size:13px;color:var(--muted)}

/* 编号榜单 */
.rank-panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh);overflow:hidden}
.rank-item{display:flex;align-items:center;gap:18px;padding:18px 24px;border-bottom:1px solid var(--line);transition:background var(--ease)}
.rank-item:last-child{border-bottom:0}
.rank-item:hover{background:#FAFCFF}
.rank-no{flex:0 0 46px;font-size:32px;font-weight:800;line-height:1;color:rgba(31,91,215,.28);letter-spacing:-.02em}
.rank-item:nth-child(1) .rank-no{color:rgba(255,106,43,.55)}
.rank-thumb{flex:0 0 auto;width:104px;border-radius:10px;overflow:hidden}
.rank-thumb img{width:100%;height:64px;object-fit:cover}
.rank-main{flex:1;min-width:0}
.rank-main h3{font-size:17px}
.rank-main h3 a{color:var(--ink)}
.rank-main h3 a:hover{color:var(--primary);text-decoration:none}
.rank-desc{margin:5px 0 0;font-size:14px;color:var(--muted);overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical}
.rank-tag{flex:0 0 auto}

/* Tab 分区 */
.tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.tab{min-height:44px;padding:10px 20px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:14px;font-weight:600;color:var(--text);transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease)}
.tab:hover{border-color:#C9D8F5;color:var(--primary)}
.tab.active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(31,91,215,.22)}
.tab-panel{display:none}
.tab-panel.active{display:block}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#D2DEF5;text-decoration:none}
.card .cover{overflow:hidden;position:relative}
.card .cover img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s ease}
.card:hover .cover img{transform:scale(1.03)}
.card .cover .badge{position:absolute;top:12px;left:12px}
.card .body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}
.card h3{font-size:17px;color:var(--ink);transition:color var(--ease)}
.card:hover h3{color:var(--primary)}
.card p{margin:0;font-size:14px;color:var(--text);overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.card .meta{margin-top:auto;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:10px}

/* 数据条 */
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh);display:flex;gap:16px;align-items:flex-start}
.stat .ico{flex:0 0 44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--primary-soft)}
.stat .ico svg{width:20px;height:20px;fill:var(--primary)}
.stat h3{font-size:16px;margin-bottom:6px}
.stat p{margin:0;font-size:14px;color:var(--muted)}

/* 最新信息列表 */
.news-list{display:flex;flex-direction:column;gap:16px}
.news-card{display:flex;gap:20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:18px;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#D2DEF5;text-decoration:none}
.news-card .news-thumb{flex:0 0 200px;border-radius:var(--r-img);overflow:hidden}
.news-card .news-thumb img{width:100%;height:126px;object-fit:cover}
.news-card .news-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:8px}
.news-card h3{font-size:18px;color:var(--ink);transition:color var(--ease)}
.news-card:hover h3{color:var(--primary)}
.news-card .excerpt{margin:0;font-size:14px;color:var(--text);overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.news-foot{display:flex;align-items:center;gap:14px;margin-top:auto;font-size:13px;color:var(--muted)}
.news-foot .go{margin-left:auto;font-weight:600;color:var(--primary);white-space:nowrap}
.news-foot .go::after{content:" →";display:inline-block;transition:transform var(--ease)}
.news-card:hover .go::after{transform:translateX(3px)}
.empty-state{background:#fff;border:1px dashed #C9D8F5;border-radius:var(--r-card);padding:48px 24px;text-align:center;color:var(--muted)}
.empty-state svg{width:38px;height:38px;fill:#C3D3F1;margin-bottom:12px}
.empty-state p{margin:0 0 16px;font-size:15px}

/* CTA 深色带 */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-hero);background-color:#0E1726;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;padding:44px 48px;display:flex;align-items:center;gap:32px;flex-wrap:wrap;box-shadow:var(--sh)}
.cta-band::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(9,16,30,.95),rgba(9,16,30,.72));z-index:1}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{color:#fff;font-size:clamp(20px,2.4vw,26px)}
.cta-band p{margin:10px 0 0;color:rgba(255,255,255,.8);font-size:15px;max-width:46em}
.cta-band .cta-actions{margin-left:auto;display:flex;gap:14px;flex-wrap:wrap}

/* FAQ */
.faq-wrap{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh);overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease)}
.faq-item[open]{border-color:#C9D8F5;box-shadow:var(--sh-hover)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);transition:color var(--ease)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-icon{flex:0 0 auto;margin-left:auto;width:20px;height:20px;position:relative}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform var(--ease),opacity var(--ease)}
.faq-icon::before{left:0;right:0;top:9px;height:2px}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-item[open] summary{color:var(--primary);box-shadow:inset 3px 0 0 var(--primary)}
.faq-body{padding:0 24px 22px;font-size:15px;color:var(--text)}

/* 页脚 */
.site-footer{background:#0E1726;color:#AAB6CC;margin-top:56px;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
.site-footer p{font-size:14px;color:#8E9CB8;line-height:1.8}
.footer-logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-logo:hover{color:#fff;text-decoration:none}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#AAB6CC}
.footer-links a:hover{color:#fff;text-decoration:none}
.footer-contact li{font-size:14px;color:#8E9CB8;margin-bottom:10px;display:flex;gap:9px;align-items:flex-start}
.footer-contact svg{width:15px;height:15px;fill:#5C7BC4;margin-top:5px;flex:0 0 auto}
.footer-bottom{margin-top:44px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7C8AA6}

/* 响应式 */
@media (max-width:1279px){
  .container{padding:0 32px}
  .grid-4{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:1023px){
  .container{padding:0 28px}
  .nav-links{display:none}
  .nav-actions .btn-ghost{display:none}
  .menu-toggle{display:inline-flex}
  .nav-inner{height:64px}
  .drawer{inset:64px 0 0 0}
  .hero{min-height:420px}
  .hero-inner{grid-template-columns:1fr;gap:26px;padding:36px 32px 12px}
  .hero-text h1{max-width:none}
  .hero-visual{display:none}
  .hero-rail{padding:22px 32px 28px}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:34px 32px}
  .cta-band .cta-actions{margin-left:0;width:100%}
  .section{padding:32px 0}
}
@media (max-width:767px){
  .container{padding:0 18px}
  body{font-size:15px}
  .section{padding:26px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:20px}
  .hero{min-height:360px;border-radius:16px}
  .hero-inner{padding:28px 20px 8px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .hero-rail{padding:18px 20px 22px}
  .hero-thumb{width:130px}
  .hero-thumb img{height:74px}
  .quick-bar{margin-top:-22px;padding:16px;gap:12px}
  .quick-form{width:100%;flex:1 1 100%;flex-direction:column}
  .quick-form .btn{width:100%}
  .grid-4{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .rail{padding-bottom:10px;margin:0 -18px;padding-left:18px;padding-right:18px}
  .rail-card{flex:0 0 78vw}
  .rail-nav{display:none}
  .rank-item{gap:12px;padding:14px 16px}
  .rank-no{flex:0 0 34px;font-size:26px}
  .rank-thumb{width:78px}
  .rank-thumb img{height:52px}
  .rank-tag{display:none}
  .news-card{flex-direction:column;gap:14px}
  .news-card .news-thumb{flex:none}
  .news-card .news-thumb img{height:170px}
  .cta-band{padding:26px 20px;border-radius:16px}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-body{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:479px){
  .logo{font-size:16px}
  .hero-points{gap:8px}
  .hero-points span{font-size:12px;padding:5px 10px}
  .card .body{padding:16px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --primary:#1F5BD7;
  --primary-dark:#1749B0;
  --primary-soft:#E8EFFC;
  --accent:#FF6A2B;
  --accent-dark:#E85A1C;
  --teal:#12B39A;
  --teal-dark:#0E8C79;
  --bg:#F4F7FC;
  --bg-soft:#EDF2FA;
  --card:#FFFFFF;
  --line:#E3E9F2;
  --ink:#0E1726;
  --text:#47536B;
  --muted:#8794AB;
  --danger:#D8443C;
  --r-card:16px;
  --r-img:12px;
  --r-hero:20px;
  --r-btn:10px;
  --sh:0 8px 24px rgba(16,42,89,.08);
  --sh-hover:0 14px 32px rgba(16,42,89,.14);
  --t:.22s ease;
  --font:'PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:100px}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
body.drawer-open{overflow:hidden}
img{max-width:100%;display:block;border:0}
svg{display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--t),border-color var(--t)}
a:hover{color:var(--primary-dark);text-decoration:underline}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:var(--primary-soft);color:var(--ink)}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:10px}
.section-head p{color:var(--muted);font-size:15px}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--t)}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,42,89,.09)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--ink);letter-spacing:.2px;flex-shrink:0}
.brand:hover{text-decoration:none;color:var(--ink)}
.logo-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,#2E6BE6,#1F5BD7);display:grid;place-items:center;color:#fff;box-shadow:0 6px 14px rgba(31,91,215,.28)}
.logo-mark svg{width:19px;height:19px;fill:currentColor}
.brand-accent{color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{position:relative;padding:10px 14px;font-size:15px;color:var(--text);border-radius:10px;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;border-radius:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform var(--t)}
.nav-link:hover{color:var(--ink);text-decoration:none}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--primary);font-weight:600}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform var(--t),background var(--t),color var(--t),border-color var(--t),box-shadow var(--t)}
.btn svg{width:16px;height:16px;fill:currentColor;transition:transform var(--t)}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(31,91,215,.22)}
.btn-primary:hover{background:var(--primary-dark);color:#fff}
.btn-primary:hover svg{transform:translateX(3px)}
.btn-ghost{background:#fff;color:var(--primary);border-color:#C9D9F7}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-dark)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,106,43,.24)}
.btn-accent:hover{background:var(--accent-dark);color:#fff}
.btn-block{width:100%}
.btn[disabled]{opacity:.5;pointer-events:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;cursor:pointer}
.nav-toggle svg{width:20px;height:20px;fill:var(--ink)}
.nav-toggle.is-active{border-color:var(--primary);background:var(--primary-soft)}
.mobile-drawer{position:fixed;left:0;right:0;top:60px;bottom:0;background:#fff;z-index:55;padding:16px 18px 110px;overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-10px);transition:opacity var(--t),transform var(--t),visibility var(--t)}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 4px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line)}
.drawer-nav a:hover{color:var(--primary);text-decoration:none}
.drawer-nav a::after{content:"";width:8px;height:8px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(-45deg)}
.drawer-footer{position:fixed;left:0;right:0;bottom:0;padding:14px 18px;background:#fff;border-top:1px solid var(--line);display:none}
.mobile-drawer.is-open .drawer-footer{display:block}

/* ============ 文章主体 ============ */
.page-main{padding:28px 0 96px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary);text-decoration:none}
.breadcrumb .sep{color:#C3CDDE}
.breadcrumb .current{color:var(--text);max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start}
.article-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh);padding:36px 40px 42px}
.article-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.chip{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;background:var(--primary-soft);color:var(--primary-dark)}
.chip-teal{background:rgba(18,179,154,.13);color:var(--teal-dark)}
.chip-accent{background:rgba(255,106,43,.13);color:#C64C15}
.article-title{font-size:clamp(26px,3.4vw,38px);line-height:1.32;margin-bottom:18px;letter-spacing:-.2px}
.article-meta{display:flex;flex-wrap:wrap;gap:18px;font-size:13px;color:var(--muted);padding-bottom:24px;border-bottom:1px solid var(--line)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta svg{width:15px;height:15px;fill:currentColor;opacity:.85}
.article-cover{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);margin:26px 0 8px;background:var(--bg-soft)}
.article-body{margin-top:26px;color:#3C4861;font-size:16px;line-height:1.85;word-break:break-word;overflow-x:auto}
.article-body > * + *{margin-top:1.15em}
.article-body p{margin:0}
.article-body h2{font-size:clamp(20px,2.2vw,24px);color:var(--ink);line-height:1.45;margin-top:2em;padding-left:14px;border-left:3px solid var(--primary)}
.article-body h3{font-size:18px;color:var(--ink);margin-top:1.6em}
.article-body h4{font-size:16px;color:var(--ink);margin-top:1.4em}
.article-body ul,.article-body ol{padding-left:1.4em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.5em 0}
.article-body li::marker{color:var(--primary);font-weight:700}
.article-body blockquote{margin:1.6em 0;padding:18px 22px;background:var(--bg-soft);border-left:4px solid var(--primary);border-radius:12px;color:#2F3C55}
.article-body blockquote p{margin:0}
.article-body img{border-radius:var(--r-img);margin:1.5em 0}
.article-body figure{margin:1.5em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(31,91,215,.35)}
.article-body a:hover{text-decoration:none;border-bottom-color:var(--primary)}
.article-body code{background:var(--bg-soft);border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:14px;color:#2F3C55}
.article-body pre{background:#0E1726;color:#E7EEFB;border-radius:12px;padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7}
.article-body pre code{background:none;border:0;color:inherit;padding:0}
.article-body table{width:100%;min-width:520px;border-collapse:collapse;font-size:14px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:var(--bg-soft);color:var(--ink);font-weight:600}
.article-body tr:last-child td{border-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.article-foot{margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.article-foot h3{font-size:15px;margin-bottom:14px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:13px;color:var(--text);transition:border-color var(--t),color var(--t),background var(--t)}
.tag:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);text-decoration:none}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pager a{display:flex;flex-direction:column;gap:6px;padding:18px 20px;border:1px solid var(--line);border-radius:14px;background:#fff;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.pager a:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#CBDCF8;text-decoration:none}
.pager .pager-label{font-size:12px;color:var(--muted)}
.pager .pager-title{font-size:15px;font-weight:600;color:var(--ink)}
.pager a:hover .pager-title{color:var(--primary)}
.pager .pager-next{text-align:right;align-items:flex-end}

/* 空状态 */
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center;padding:64px 24px;background:var(--bg-soft);border:1px dashed #C9D9F7;border-radius:var(--r-card);margin-top:26px}
.empty-state svg{width:46px;height:46px;fill:#A9B8D2}
.empty-state h2{font-size:20px}
.empty-state p{color:var(--muted);font-size:14px;max-width:420px}

/* ============ 侧边栏 ============ */
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh);padding:22px}
.side-card h3{display:flex;align-items:center;gap:8px;font-size:15px;margin-bottom:14px}
.side-card h3::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--primary)}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:320px;overflow-y:auto}
.toc-list a{display:block;padding:7px 10px;border-radius:8px;font-size:14px;color:var(--text);border-left:2px solid transparent}
.toc-list a:hover{background:var(--primary-soft);color:var(--primary-dark);text-decoration:none;border-left-color:var(--primary)}
.toc-list .toc-sub a{padding-left:22px;font-size:13px;color:var(--muted)}
.side-links{display:flex;flex-direction:column}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;font-size:14px;color:var(--text);border-bottom:1px solid var(--line)}
.side-links a:last-child{border-bottom:0}
.side-links a:hover{color:var(--primary);text-decoration:none}
.side-links svg{width:14px;height:14px;fill:currentColor;opacity:.45;transition:transform var(--t),opacity var(--t)}
.side-links a:hover svg{transform:translateX(3px);opacity:1}
.side-cta{background:linear-gradient(150deg,#12306E,#1F5BD7);border-color:transparent;box-shadow:0 14px 30px rgba(16,42,89,.20)}
.side-cta h3{color:#fff}
.side-cta h3::before{background:var(--accent)}
.side-cta p{color:#CBDBF6;font-size:14px;margin-bottom:16px}

/* ============ 相关推荐 ============ */
.related{padding-top:0}
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.rel-card{display:grid;grid-template-columns:190px minmax(0,1fr);background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#CBDCF8;text-decoration:none}
.rel-thumb{overflow:hidden;background:var(--bg-soft)}
.rel-thumb img{width:100%;height:100%;min-height:150px;object-fit:cover;transition:transform var(--t)}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:20px 22px;display:flex;flex-direction:column;gap:8px}
.rel-body h3{font-size:17px}
.rel-card:hover .rel-body h3{color:var(--primary)}
.rel-body p{font-size:14px;color:var(--muted);line-height:1.7}
.rel-more{display:inline-flex;align-items:center;gap:6px;margin-top:auto;font-size:13px;font-weight:600;color:var(--primary)}
.rel-more svg{width:14px;height:14px;fill:currentColor;transition:transform var(--t)}
.rel-card:hover .rel-more svg{transform:translateX(3px)}

/* ============ CTA ============ */
.cta-band{background:#0E1726;border-radius:var(--r-hero);padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(31,91,215,.55),transparent 70%)}
.cta-copy{position:relative;z-index:1;max-width:620px}
.cta-copy h2{color:#fff;font-size:clamp(21px,2.4vw,28px);margin-bottom:10px}
.cta-copy p{color:#AFC1DE;font-size:15px}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 28px;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:36px}
.footer-logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--ink);margin-bottom:14px}
.footer-logo:hover{text-decoration:none;color:var(--ink)}
.footer-logo .logo-mark{width:32px;height:32px;border-radius:10px}
.site-footer .footer-grid > div > p{font-size:14px;color:var(--muted);line-height:1.8;max-width:320px}
.site-footer h4{font-size:15px;margin-bottom:16px;color:var(--ink)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--muted)}
.footer-links a:hover{color:var(--primary);text-decoration:none}
.footer-contact{display:flex;flex-direction:column;gap:12px}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--muted);line-height:1.7}
.footer-contact svg{width:16px;height:16px;fill:var(--primary);flex-shrink:0;margin-top:5px;opacity:.85}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-top:44px;padding-top:22px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 32px}
}
@media (max-width:1100px){
  .article-shell{grid-template-columns:minmax(0,1fr) 272px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .nav-links{display:none}
  .header-actions{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .header-inner{height:60px}
  .article-shell{grid-template-columns:minmax(0,1fr)}
  .sidebar{position:static;top:auto}
  .footer-grid{grid-template-columns:1fr 1fr}
  .related-grid{grid-template-columns:1fr}
  .rel-card{grid-template-columns:170px minmax(0,1fr)}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 34px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:48px 0}
  .page-main{padding:20px 0 64px}
  .article-card{padding:24px 20px 30px;border-radius:14px}
  .article-meta{gap:12px;font-size:12px}
  .breadcrumb .current{max-width:64vw}
  .pager{grid-template-columns:1fr}
  .pager .pager-next{text-align:left;align-items:flex-start}
  .rel-card{grid-template-columns:1fr}
  .rel-thumb img{min-height:170px}
  .cta-band{padding:30px 22px;border-radius:16px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 0 auto}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .section-head{margin-bottom:22px}
}
@media (max-width:479px){
  body{font-size:15px}
  .brand{font-size:16px}
  .logo-mark{width:32px;height:32px}
  .article-body{font-size:15px}
  .article-chips{gap:6px}
  .btn{height:46px;font-size:15px}
}

/* roulang page: category1 */
:root{
  --blue:#1F5BD7;
  --blue-dark:#1749B0;
  --orange:#FF6A2B;
  --orange-dark:#E85A1C;
  --teal:#12B39A;
  --bg:#F4F7FC;
  --bg-soft:#EDF2FA;
  --card:#FFFFFF;
  --line:#E3E9F2;
  --ink:#0E1726;
  --text:#47536B;
  --muted:#8794AB;
  --danger:#D8443C;
  --radius-card:16px;
  --radius-img:12px;
  --radius-hero:20px;
  --radius-btn:10px;
  --shadow:0 8px 24px rgba(16,42,89,.08);
  --shadow-hover:0 14px 32px rgba(16,42,89,.14);
  --ease:.22s ease;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--blue);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--blue-dark);text-decoration:underline;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;line-height:1.3;}
h1{font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.25;}
h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;}
h3{font-size:19px;font-weight:600;}
p{margin:0;}
button{font:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,42,89,.09);}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:72px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:800;
  color:var(--ink);
  letter-spacing:.2px;
  white-space:nowrap;
}
.logo:hover{text-decoration:none;color:var(--ink);}
.logo-mark{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--blue),#3E7BEC);
  border-radius:10px;
  flex:0 0 auto;
}
.logo-mark svg{width:20px;height:20px;fill:#fff;}
.logo em{font-style:normal;color:var(--blue);}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 14px;
  font-size:15px;
  color:var(--text);
  border-radius:8px;
  white-space:nowrap;
}
.nav-link:hover{color:var(--blue);text-decoration:none;background:var(--bg-soft);}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:8px;
  height:2px;
  background:var(--blue);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:center;
  transition:transform var(--ease);
}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--blue);font-weight:600;}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 20px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn svg{width:16px;height:16px;fill:currentColor;flex:0 0 auto;}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 6px 16px rgba(31,91,215,.22);}
.btn-primary:hover{background:var(--blue-dark);color:#fff;box-shadow:0 10px 22px rgba(31,91,215,.28);}
.btn-ghost{background:#fff;color:var(--blue);border-color:#C9D8F4;}
.btn-ghost:hover{background:var(--bg-soft);color:var(--blue-dark);border-color:var(--blue);}
.btn-orange{background:var(--orange);color:#fff;box-shadow:0 6px 16px rgba(255,106,43,.25);}
.btn-orange:hover{background:var(--orange-dark);color:#fff;}
.btn-block{width:100%;}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
}
.menu-toggle svg{width:22px;height:22px;fill:var(--ink);}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:12px 0 20px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer .nav-link{
  height:48px;
  width:100%;
  border-radius:10px;
  font-size:16px;
  padding:0 14px;
}
.mobile-drawer .nav-link::after{display:none;}
.mobile-drawer .nav-link.active{background:var(--bg-soft);}
.mobile-drawer .btn{margin-top:12px;}

/* ============ 内页横幅 ============ */
.banner{
  margin-top:28px;
  border-radius:var(--radius-hero);
  overflow:hidden;
  background:#0E1726 url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  position:relative;
}
.banner::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(14,23,38,.92) 0%,rgba(14,23,38,.72) 46%,rgba(14,23,38,.20) 100%);
}
.banner-inner{
  position:relative;
  z-index:1;
  padding:44px 40px;
  min-height:230px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:14px;
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:#B9C7DE;
}
.crumb a{color:#D8E3F5;}
.crumb a:hover{color:#fff;}
.banner h1{color:#fff;max-width:820px;}
.banner .banner-sub{
  color:#CBD7EA;
  font-size:16px;
  max-width:660px;
}
.banner-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px;}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  font-size:12px;
  font-weight:600;
  border-radius:999px;
  background:rgba(255,255,255,.14);
  color:#E7EEFB;
  border:1px solid rgba(255,255,255,.22);
}
.chip-blue{background:var(--bg-soft);color:var(--blue);border-color:#C9D8F4;}
.chip-teal{background:rgba(18,179,154,.12);color:#0B8E7B;border-color:rgba(18,179,154,.28);}
.chip-orange{background:rgba(255,106,43,.12);color:#D8501A;border-color:rgba(255,106,43,.28);}

/* ============ 通用板块 ============ */
main{display:block;}
.section{padding:72px 0 0;}
.section-head{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-bottom:28px;
  max-width:760px;
}
.section-head p{font-size:15px;color:var(--muted);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--blue);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:22px;height:2px;border-radius:2px;background:var(--blue);
}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D3DEEE;}

/* ============ 左右分栏主体 ============ */
.split{
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(0,3fr);
  gap:28px;
  align-items:start;
}
.split-aside{
  position:sticky;
  top:96px;
  padding:30px 28px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
}
.split-aside h2{font-size:24px;margin-bottom:14px;}
.split-aside p{font-size:15px;margin-bottom:14px;}
.aside-figure{
  margin:20px 0 22px;
  border-radius:var(--radius-img);
  overflow:hidden;
}
.aside-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.aside-actions{display:flex;flex-direction:column;gap:12px;margin-top:22px;}
.aside-meta{
  margin-top:22px;
  padding-top:18px;
  border-top:1px dashed var(--line);
  display:flex;
  flex-direction:column;
  gap:10px;
  font-size:13px;
  color:var(--muted);
}
.aside-meta span{display:inline-flex;align-items:center;gap:8px;}
.aside-meta svg{width:16px;height:16px;fill:var(--teal);flex:0 0 auto;}

.entry-panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.entry-panel-head{
  padding:24px 28px;
  border-bottom:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.entry-panel-head h2{font-size:22px;}
.entry-panel-head span{font-size:13px;color:var(--muted);}
.entry-list{display:flex;flex-direction:column;}
.entry-item{
  display:flex;
  align-items:flex-start;
  gap:18px;
  padding:22px 28px;
  border-bottom:1px solid var(--line);
  transition:background var(--ease),transform var(--ease);
}
.entry-item:last-child{border-bottom:none;}
.entry-item:hover{background:#F8FAFE;}
.entry-num{
  font-size:28px;
  font-weight:800;
  line-height:1.1;
  color:rgba(31,91,215,.28);
  min-width:44px;
  font-variant-numeric:tabular-nums;
}
.entry-body{flex:1 1 auto;min-width:0;}
.entry-body h3{font-size:17px;margin-bottom:6px;transition:color var(--ease);}
.entry-item:hover .entry-body h3{color:var(--blue);}
.entry-body p{font-size:14.5px;color:var(--text);}
.entry-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:10px;
  font-size:14px;
  font-weight:600;
}
.entry-arrow{
  margin-left:auto;
  align-self:center;
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--bg-soft);
  flex:0 0 auto;
  transition:background var(--ease),transform var(--ease);
}
.entry-arrow svg{width:16px;height:16px;fill:var(--blue);}
.entry-item:hover .entry-arrow{background:var(--blue);transform:translateX(4px);}
.entry-item:hover .entry-arrow svg{fill:#fff;}

/* ============ 场景网格 ============ */
.grid-4{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:22px;
}
.scene-card{
  padding:24px 22px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.scene-icon{
  width:44px;height:44px;
  border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--bg-soft);
}
.scene-icon svg{width:22px;height:22px;fill:var(--blue);}
.scene-card h3{font-size:17px;}
.scene-card p{font-size:14.5px;}

/* ============ 图文区 ============ */
.feature{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:32px;
  align-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-hero);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.feature-media{height:100%;min-height:320px;}
.feature-media img{width:100%;height:100%;object-fit:cover;}
.feature-text{padding:36px 36px 36px 0;}
.feature-text h2{margin-bottom:14px;}
.feature-text p{margin-bottom:14px;font-size:15px;}
.tick-list{display:flex;flex-direction:column;gap:12px;margin-top:6px;}
.tick-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:15px;
  color:var(--text);
}
.tick-list svg{width:18px;height:18px;fill:var(--teal);flex:0 0 auto;margin-top:5px;}

/* ============ 步骤条 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
  position:relative;
}
.step{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 24px;
  box-shadow:var(--shadow);
  position:relative;
  transition:transform var(--ease),box-shadow var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.step-index{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:12px;
  background:var(--blue);
  color:#fff;
  font-weight:700;
  font-size:16px;
  margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item.open{border-color:#C9D8F4;box-shadow:var(--shadow);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  background:none;
  border:none;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  transition:color var(--ease);
  min-height:44px;
}
.faq-item.open .faq-q{color:var(--blue);}
.faq-icon{
  width:26px;height:26px;
  flex:0 0 auto;
  border-radius:50%;
  background:var(--bg-soft);
  display:inline-flex;align-items:center;justify-content:center;
  transition:transform var(--ease),background var(--ease);
}
.faq-icon svg{width:14px;height:14px;fill:var(--blue);}
.faq-item.open .faq-icon{background:var(--blue);transform:rotate(180deg);}
.faq-item.open .faq-icon svg{fill:#fff;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a-inner{
  padding:0 24px 22px 24px;
  font-size:15px;
  color:var(--text);
  border-left:3px solid transparent;
}
.faq-item.open .faq-a-inner{border-left-color:var(--blue);margin-left:24px;padding-left:18px;}

/* ============ CTA 条 ============ */
.cta-bar{
  margin-top:72px;
  background:#0E1726;
  border-radius:var(--radius-hero);
  padding:40px 44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  position:relative;
  overflow:hidden;
}
.cta-bar::after{
  content:"";
  position:absolute;
  right:-60px;top:-60px;
  width:220px;height:220px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(31,91,215,.42),transparent 68%);
}
.cta-text{position:relative;z-index:1;max-width:640px;}
.cta-text h2{color:#fff;font-size:clamp(20px,2.2vw,26px);margin-bottom:10px;}
.cta-text p{color:#A9B8D0;font-size:15px;}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 相关分类 ============ */
.related{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.related-card{
  padding:24px 22px;
  display:flex;
  flex-direction:column;
  gap:10px;
  justify-content:space-between;
}
.related-card span.tag{
  align-self:flex-start;
}
.related-card h3{font-size:17px;}
.related-card p{font-size:14.5px;flex:1 1 auto;}
.related-card .more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
}
.related-card .more svg{width:14px;height:14px;fill:currentColor;transition:transform var(--ease);}
.related-card:hover .more svg{transform:translateX(3px);}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  font-size:12px;
  font-weight:600;
  border-radius:999px;
  background:var(--bg-soft);
  color:var(--blue);
}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;
  background:#fff;
  border-top:1px solid var(--line);
  padding:56px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:32px;
  padding-bottom:40px;
}
.footer-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:800;
  color:var(--ink);
  margin-bottom:14px;
}
.footer-logo:hover{text-decoration:none;color:var(--ink);}
.footer-logo .logo-mark{width:32px;height:32px;border-radius:9px;}
.footer-logo .logo-mark svg{width:18px;height:18px;}
.site-footer p{font-size:14px;color:var(--muted);}
.site-footer h4{font-size:15px;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--muted);}
.footer-links a:hover{color:var(--blue);}
.footer-contact{display:flex;flex-direction:column;gap:14px;}
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:var(--muted);
  align-items:flex-start;
}
.footer-contact svg{width:16px;height:16px;fill:var(--blue);flex:0 0 auto;margin-top:5px;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--muted);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 32px;}
  .nav-link{padding:0 10px;font-size:14px;}
}
@media (max-width:1023px){
  .nav-links,.header-actions .btn-ghost{display:none;}
  .menu-toggle{display:inline-flex;}
  .split{grid-template-columns:1fr;}
  .split-aside{position:static;}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .feature{grid-template-columns:1fr;}
  .feature-media{min-height:240px;}
  .feature-text{padding:0 28px 32px;}
  .steps{grid-template-columns:1fr;gap:16px;}
  .related{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section{padding:56px 0 0;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .header-inner{height:60px;gap:14px;}
  .logo{font-size:17px;}
  .logo-mark{width:32px;height:32px;}
  .banner{margin-top:18px;border-radius:16px;}
  .banner-inner{padding:30px 22px;min-height:200px;}
  .banner .banner-sub{font-size:15px;}
  .grid-4{grid-template-columns:1fr;}
  .related{grid-template-columns:1fr;}
  .entry-item{padding:20px 18px;gap:14px;}
  .entry-num{font-size:24px;min-width:38px;}
  .entry-arrow{display:none;}
  .entry-panel-head{padding:20px 18px;}
  .cta-bar{padding:30px 22px;margin-top:56px;border-radius:16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .site-footer{margin-top:64px;padding-top:40px;}
  .section{padding:48px 0 0;}
  .faq-q{padding:18px 18px;font-size:15px;}
  .faq-a-inner{padding:0 18px 20px 18px;}
  .faq-item.open .faq-a-inner{margin-left:16px;padding-left:14px;}
  .split-aside{padding:24px 20px;}
  .feature-text{padding:0 20px 26px;}
}
@media (max-width:479px){
  h1{font-size:26px;}
  .banner-inner{padding:26px 18px;}
  .logo{font-size:16px;}
}

/* roulang page: category3 */
:root{
  --primary:#1F5BD7;
  --primary-dark:#1749B0;
  --primary-soft:#EDF2FA;
  --accent:#FF6A2B;
  --accent-dark:#E85A1D;
  --teal:#12B39A;
  --bg:#F4F7FC;
  --card:#FFFFFF;
  --line:#E3E9F2;
  --line-strong:#C9D8F3;
  --ink:#0E1726;
  --text:#47536B;
  --muted:#8794AB;
  --danger:#D8443C;
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:20px;
  --shadow:0 8px 24px rgba(16,42,89,.08);
  --shadow-hover:0 14px 32px rgba(16,42,89,.14);
  --ease:.22s ease;
  --container:1240px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:'PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);}
a:hover{color:var(--primary-dark);}
h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.35;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{max-width:var(--container);margin:0 auto;padding:0 32px;}
.narrow{max-width:820px;margin:0 auto;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(16,42,89,.08);}
.header-inner{display:flex;align-items:center;gap:18px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--ink);white-space:nowrap;}
.brand:hover{text-decoration:none;color:var(--ink);}
.brand em{font-style:normal;color:var(--primary);}
.logo-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 36px;
  background:linear-gradient(135deg,#2E6BE6,#1749B0);
  display:grid;place-items:center;
  box-shadow:0 6px 14px rgba(31,91,215,.28);
}
.logo-mark svg{width:19px;height:19px;fill:#fff;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 12px;font-size:14.5px;font-weight:500;color:var(--text);border-radius:8px;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:center;transition:transform var(--ease);
}
.nav-link:hover{color:var(--primary);text-decoration:none;background:#F7FAFF;}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--primary);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:10px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 20px;border-radius:10px;
  font-size:14.5px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn svg{width:16px;height:16px;fill:currentColor;flex:0 0 16px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(31,91,215,.24);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);text-decoration:none;box-shadow:0 10px 22px rgba(31,91,215,.3);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--line-strong);}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-dark);text-decoration:none;}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,106,43,.28);}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);text-decoration:none;}
.btn-accent:active{transform:translateY(0);}
.btn-outline-light{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.45);}
.btn-outline-light:hover{background:rgba(255,255,255,.16);color:#fff;text-decoration:none;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;pointer-events:none;transform:none;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;
}
.menu-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform var(--ease),top var(--ease);}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}
.menu-toggle[aria-expanded="true"] span{background:transparent;}
.menu-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.menu-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}
.mobile-drawer{
  display:none;position:fixed;left:0;right:0;top:60px;bottom:0;z-index:110;
  background:#fff;padding:14px 18px 96px;overflow-y:auto;
  border-top:1px solid var(--line);
}
.mobile-drawer.open{display:block;}
.drawer-link{
  display:flex;align-items:center;min-height:44px;padding:12px 14px;
  font-size:16px;font-weight:600;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-link:hover{color:var(--primary);text-decoration:none;background:#F7FAFF;}
.drawer-link.active{color:var(--primary);background:var(--primary-soft);border-radius:12px;border-bottom-color:transparent;}
.drawer-cta{width:100%;margin-top:18px;}

/* ---------- 页面横幅 ---------- */
.page-hero-wrap{padding:28px 0 0;}
.page-hero{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  box-shadow:var(--shadow);
  min-height:240px;
}
.page-hero-inner{
  position:relative;z-index:2;min-height:240px;
  padding:34px 40px;display:flex;flex-direction:column;justify-content:center;gap:12px;
  background:linear-gradient(90deg,rgba(14,23,38,.9) 0%,rgba(14,23,38,.62) 54%,rgba(14,23,38,.15) 100%);
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);}
.crumbs a{color:rgba(255,255,255,.86);font-size:13px;}
.crumbs a:hover{color:#fff;text-decoration:underline;}
.crumbs span.sep{opacity:.6;}
.page-hero h1{
  color:#fff;font-size:clamp(26px,3.6vw,38px);font-weight:800;letter-spacing:.5px;
}
.page-hero .lede{color:rgba(255,255,255,.86);font-size:15.5px;max-width:620px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px;}
.hero-tags span{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.22);
}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0;}
.section:first-of-type{padding-top:52px;}
.section-alt{background:var(--primary-soft);}
.section-head{margin-bottom:26px;}
.section-head h2{
  display:flex;align-items:center;gap:12px;
  font-size:clamp(22px,2.6vw,30px);
}
.h2-mark{width:6px;height:26px;border-radius:3px;background:var(--primary);flex:0 0 6px;}
.section-head p{margin-top:10px;font-size:15px;color:var(--muted);}
.section-head.center{text-align:center;}
.section-head.center h2{justify-content:center;}

/* ---------- 图片 ---------- */
.figure{margin:0;border-radius:var(--radius-sm);overflow:hidden;box-shadow:var(--shadow);background:#DDE5F2;}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease;}
.figure:hover img{transform:scale(1.03);}
.figcap{font-size:13px;color:var(--muted);padding:10px 4px 0;}

/* ---------- 核对清单条 ---------- */
.check-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px;}
.check-item{
  display:flex;gap:12px;background:var(--card);border:1px solid var(--line);
  border-radius:14px;padding:18px;box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease);
}
.check-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.check-item svg{width:20px;height:20px;fill:var(--teal);flex:0 0 20px;margin-top:4px;}
.check-item strong{display:block;font-size:15px;font-weight:700;color:var(--ink);margin-bottom:4px;}
.check-item span{font-size:13.5px;color:var(--muted);line-height:1.7;}

/* ---------- 分步条 ---------- */
.steps{list-style:none;position:relative;margin-top:4px;}
.steps::before{
  content:"";position:absolute;left:23px;top:16px;bottom:20px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary) 0%,rgba(31,91,215,.18) 100%);
}
.step{position:relative;display:flex;gap:20px;padding-bottom:22px;}
.step:last-child{padding-bottom:0;}
.step-num{
  position:relative;z-index:1;flex:0 0 48px;width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;
  background:#fff;border:2px solid var(--primary);color:var(--primary);
  font-size:18px;font-weight:800;
  box-shadow:0 4px 12px rgba(31,91,215,.16);
}
.step-body{
  flex:1;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.step:hover .step-body{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);}
.step-body h3{font-size:18px;margin-bottom:8px;}
.step-body p{font-size:15px;color:var(--text);}
.step-tag{
  display:inline-block;margin-top:12px;padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;color:var(--teal);background:rgba(18,179,154,.1);
}

/* ---------- 提示对照 ---------- */
.pair-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.pair-card{
  background:var(--card);border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:14px;padding:20px 22px;box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease);
}
.pair-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.pair-card h3{font-size:16px;margin-bottom:8px;}
.pair-card .p-label{font-size:12px;font-weight:600;color:var(--accent);letter-spacing:.5px;}
.pair-card p{margin-top:8px;font-size:14.5px;color:var(--text);}

/* ---------- 安全提示块 ---------- */
.safe-block{
  background:var(--card);border:1px solid #DBE5F6;border-radius:var(--radius-lg);
  padding:30px 32px;box-shadow:var(--shadow);
}
.safe-block h2{display:flex;align-items:center;gap:12px;font-size:clamp(20px,2.2vw,26px);}
.safe-block h2 svg{width:24px;height:24px;fill:var(--primary);flex:0 0 24px;}
.safe-block p.lead{margin-top:12px;font-size:15px;color:var(--muted);}
.safe-list{list-style:none;margin-top:20px;display:grid;grid-template-columns:1fr 1fr;gap:16px 26px;}
.safe-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text);line-height:1.7;}
.safe-list svg{width:18px;height:18px;fill:var(--primary);flex:0 0 18px;margin-top:4px;}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;
  transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);
  transform:scaleY(0);transform-origin:top;transition:transform var(--ease);
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.faq-item[open]::before{transform:scaleY(1);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item[open] summary{color:var(--primary);}
.plus{margin-left:auto;position:relative;width:22px;height:22px;flex:0 0 22px;}
.plus i{position:absolute;background:var(--primary);border-radius:2px;transition:transform var(--ease);}
.plus i.h{width:14px;height:2px;left:4px;top:10px;}
.plus i.v{width:2px;height:14px;left:10px;top:4px;}
.faq-item[open] .plus i.v{transform:scaleY(0);}
.faq-body{padding:0 22px 20px 22px;font-size:15px;color:var(--text);}
.faq-body p+p{margin-top:10px;}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink);border-radius:var(--radius-lg);
  padding:38px 40px;display:flex;align-items:center;justify-content:space-between;gap:30px;
  box-shadow:0 18px 40px rgba(14,23,38,.22);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-80px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,43,.35),rgba(255,106,43,0) 70%);
}
.cta-copy{position:relative;z-index:1;max-width:600px;}
.cta-copy h2{color:#fff;font-size:clamp(20px,2.3vw,26px);}
.cta-copy p{color:rgba(255,255,255,.76);font-size:15px;margin-top:10px;}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 相关分类 ---------- */
.related-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px;}
.related-links a{
  display:inline-flex;align-items:center;gap:8px;min-height:44px;
  padding:10px 20px;border-radius:999px;background:var(--card);
  border:1px solid var(--line);box-shadow:var(--shadow);
  font-size:14px;font-weight:600;color:var(--text);
}
.related-links a svg{width:14px;height:14px;fill:var(--primary);flex:0 0 14px;}
.related-links a:hover{color:var(--primary);border-color:var(--line-strong);transform:translateY(-2px);text-decoration:none;}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);margin-top:72px;padding-top:56px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.5fr;gap:34px;padding-bottom:40px;}
.footer-logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--ink);}
.footer-logo:hover{color:var(--ink);text-decoration:none;}
.footer-logo .logo-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;}
.footer-logo .logo-mark svg{width:17px;height:17px;}
.site-footer p{font-size:14px;color:var(--muted);line-height:1.85;margin-top:14px;max-width:340px;}
.site-footer h4{font-size:15px;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--text);}
.footer-links a:hover{color:var(--primary);text-decoration:none;}
.footer-contact{list-style:none;display:flex;flex-direction:column;gap:13px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--muted);line-height:1.7;}
.footer-contact svg{width:18px;height:18px;fill:var(--primary);flex:0 0 18px;margin-top:4px;}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:20px 0 30px;font-size:13px;color:var(--muted);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 28px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-actions .btn-ghost{display:none;}
  .header-inner{height:60px;}
  .mobile-drawer{top:60px;}
  .section{padding:52px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .check-strip{grid-template-columns:1fr 1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px;}
  .page-hero-inner{padding:28px 28px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .site-header .brand{font-size:16px;}
  .header-actions .btn-primary{padding:10px 14px;font-size:13.5px;}
  .section{padding:44px 0;}
  .page-hero-wrap{padding:16px 0 0;}
  .page-hero,.page-hero-inner{min-height:210px;border-radius:var(--radius);}
  .page-hero-inner{padding:24px 20px;background:linear-gradient(180deg,rgba(14,23,38,.88) 0%,rgba(14,23,38,.6) 100%);}
  .page-hero h1{font-size:24px;}
  .page-hero .lede{font-size:14.5px;}
  .check-strip{grid-template-columns:1fr;}
  .pair-grid{grid-template-columns:1fr;}
  .safe-list{grid-template-columns:1fr;}
  .safe-block{padding:24px 20px;}
  .step{gap:14px;}
  .step-num{flex:0 0 40px;width:40px;height:40px;font-size:16px;}
  .steps::before{left:19px;}
  .step-body{padding:18px 18px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:480px){
  body{font-size:15px;}
  .brand .brand-text{font-size:15px;}
  .page-hero h1{font-size:21px;}
  .section-head h2{font-size:20px;}
  .section-head h2 .h2-mark{height:22px;}
  .faq-item summary{padding:16px 16px;font-size:15px;}
  .faq-body{padding:0 16px 18px 16px;}
  .header-actions .btn-primary{padding:10px 12px;}
  .header-actions .btn-primary .btn-text-long{display:none;}
}

/* roulang page: category2 */
:root{
  --brand:#1F5BD7;
  --brand-dark:#1749B0;
  --accent:#FF6A2B;
  --accent-dark:#E85A1C;
  --teal:#12B39A;
  --bg:#F4F7FC;
  --surface:#FFFFFF;
  --line:#E3E9F2;
  --soft:#EDF2FA;
  --ink:#0E1726;
  --text:#47536B;
  --muted:#8794AB;
  --danger:#D8443C;
  --r-card:16px;
  --r-img:12px;
  --r-hero:20px;
  --r-btn:10px;
  --sh:0 8px 24px rgba(16,42,89,.08);
  --sh-hover:0 14px 32px rgba(16,42,89,.14);
  --t:.22s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:'PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t)}
a:hover{color:var(--brand-dark)}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.3}
h1{font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.25}
h2{font-size:clamp(22px,2.6vw,30px);font-weight:700}
h3{font-size:19px;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
svg{display:block}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{max-width:1240px;margin:0 auto;padding:0 32px}
.section{padding:0 0 88px}
.section-first{padding-top:26px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:28px}
.section-head .lead{margin-top:10px;font-size:15px;color:var(--muted);max-width:660px}
.section-head .head-action{flex:0 0 auto}
.eyebrow{display:inline-flex;align-items:center;gap:7px;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;background:var(--soft);color:var(--brand)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;min-height:44px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform var(--t),background-color var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;fill:currentColor;flex:0 0 auto}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(31,91,215,.24)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-on-dark{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.42)}
.btn-on-dark:hover{background:#fff;color:var(--brand);border-color:#fff;transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 18px rgba(255,106,43,.26)}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-accent:active{transform:translateY(0)}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;box-shadow:none}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t),background-color var(--t);
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(16,42,89,.08)}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--ink);white-space:nowrap}
.logo:hover{color:var(--brand)}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,#2C6BE8,#1749B0);
  display:grid;place-items:center;
}
.logo-mark svg{width:18px;height:18px;fill:#fff}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{position:relative;padding:10px 14px;font-size:15px;color:var(--text);border-radius:8px}
.nav-link:hover{color:var(--brand);background:var(--soft)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;border-radius:2px;background:var(--brand)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:14px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;background:#fff;
  border:1px solid var(--line);cursor:pointer;transition:border-color var(--t),color var(--t);
}
.nav-toggle svg{width:22px;height:22px;fill:var(--ink)}
.nav-toggle:hover{border-color:var(--brand)}
.nav-toggle:hover svg{fill:var(--brand)}

/* ===== 移动抽屉 ===== */
.mobile-drawer{
  position:fixed;left:0;right:0;top:72px;bottom:0;z-index:79;
  background:#fff;border-top:1px solid var(--line);
  padding:16px 18px 34px;overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.mobile-drawer.open{opacity:1;visibility:visible;transform:none}
.mobile-drawer .drawer-title{font-size:13px;color:var(--muted);padding:6px 14px 8px;font-weight:600}
.mobile-drawer a.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:10px;
  font-size:16px;color:var(--ink);font-weight:500;
}
.mobile-drawer a.drawer-link:hover{background:var(--soft);color:var(--brand)}
.mobile-drawer a.drawer-link.active{background:var(--soft);color:var(--brand);font-weight:700}
.mobile-drawer .btn{width:100%;margin-top:14px}

/* ===== 面包屑 ===== */
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--muted);padding:22px 0 0}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C2CCDD}

/* ===== Hero 横幅 ===== */
.hero{
  position:relative;margin-top:22px;border-radius:var(--r-hero);overflow:hidden;
  min-height:360px;display:flex;align-items:center;
  background:var(--ink) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  box-shadow:var(--sh);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(14,23,38,.93) 0%,rgba(14,23,38,.78) 46%,rgba(14,23,38,.22) 100%);
}
.hero-inner{position:relative;z-index:2;padding:54px 48px;max-width:760px}
.hero .eyebrow{background:rgba(255,255,255,.14);color:#DCE7FA}
.hero h1{color:#fff;margin-top:16px}
.hero .hero-sub{color:#C7D3E8;font-size:16px;margin-top:14px;max-width:580px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-facts{display:flex;gap:22px;flex-wrap:wrap;margin-top:26px;padding-top:18px;border-top:1px solid rgba(255,255,255,.16);color:#B7C5DE;font-size:13px}
.hero-facts span{display:inline-flex;align-items:center;gap:7px}
.hero-facts svg{width:15px;height:15px;fill:var(--teal)}

/* ===== 标签条 ===== */
.tabbar-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:12px;box-shadow:var(--sh)}
.tabbar{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.tabbar::-webkit-scrollbar{display:none}
.tab-chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;
  min-height:40px;padding:9px 16px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--text);
  background:var(--soft);border:1px solid transparent;cursor:pointer;
  transition:background-color var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
}
.tab-chip:hover{color:var(--brand);border-color:#C9D8F5}
.tab-chip.is-active{background:var(--brand);color:#fff;box-shadow:0 6px 14px rgba(31,91,215,.22)}
.tab-chip.is-active:hover{color:#fff;border-color:transparent}
.tabbar-note{margin-top:12px;font-size:13px;color:var(--muted);padding:0 4px}

/* ===== 错位卡片流 ===== */
.stagger{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;align-items:start}
.game-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px;box-shadow:var(--sh);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.game-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#D3DFF3}
.game-card.is-offset{margin-top:56px}
.card-media{border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/9;background:#E7EDF7}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.game-card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:16px 6px 4px}
.card-body h3{transition:color var(--t)}
.game-card:hover .card-body h3{color:var(--brand)}
.card-body p{margin-top:10px;font-size:15px}
.card-meta{
  display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:16px;padding-top:12px;
  border-top:1px solid var(--line);font-size:13px;color:var(--muted);
}
.card-meta span{display:inline-flex;align-items:center;gap:6px}
.card-meta svg{width:14px;height:14px;fill:var(--teal);flex:0 0 auto}
.pill{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--soft);color:var(--brand);margin-bottom:10px}
.pill.pill-teal{background:#E4F7F3;color:#0E8E7B}
.pill.pill-orange{background:#FFF0E8;color:#D9541A}

/* ===== 挑选要点 ===== */
.points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.point-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--sh);
  transition:transform var(--t),box-shadow var(--t);
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.point-icon{width:46px;height:46px;border-radius:12px;background:var(--soft);display:grid;place-items:center;margin-bottom:18px}
.point-icon svg{width:22px;height:22px;fill:var(--brand)}
.point-card h3{margin-bottom:10px}
.point-card p{font-size:15px}

/* ===== 流程 ===== */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:flowstep}
.flow-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh);position:relative;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.flow-item::before{
  counter-increment:flowstep;content:counter(flowstep,decimal-leading-zero);
  display:block;font-size:24px;font-weight:800;color:#C9D8F5;letter-spacing:.04em;margin-bottom:10px;
}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#D3DFF3}
.flow-item h3{font-size:17px;margin-bottom:8px}
.flow-item p{font-size:14px;color:var(--text)}

/* ===== FAQ ===== */
.faq{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh);overflow:hidden}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;min-height:56px;font-size:16px;font-weight:600;color:var(--ink);
  transition:color var(--t),box-shadow var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";width:11px;height:11px;flex:0 0 auto;margin-top:-5px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform var(--t),margin var(--t);
}
.faq-item summary:hover{color:var(--brand)}
.faq-item[open] summary{color:var(--brand);box-shadow:inset 3px 0 0 var(--brand)}
.faq-item[open] summary::after{transform:rotate(-135deg);margin-top:5px}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--text)}

/* ===== 相关分类 ===== */
.related{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#C9D8F5}
.rel-card h3{font-size:16px}
.rel-card p{font-size:13px;color:var(--muted);margin-top:6px}
.rel-card svg{width:18px;height:18px;fill:var(--brand);flex:0 0 auto;transition:transform var(--t)}
.rel-card:hover svg{transform:translateX(4px)}

/* ===== CTA 条 ===== */
.cta-band{
  background:var(--ink);border-radius:var(--r-hero);
  padding:42px 46px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{color:#fff}
.cta-band p{color:#9FB0CB;margin-top:12px;max-width:600px;font-size:15px}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink);color:#B9C4D8;padding:64px 0 28px;margin-top:12px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:34px}
.footer-logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-logo:hover{color:#fff}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.site-footer p{font-size:14px;line-height:1.8;color:#93A2BD;max-width:340px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:#B9C4D8}
.footer-links a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.7;margin-bottom:14px;color:#93A2BD}
.footer-contact svg{width:18px;height:18px;fill:var(--accent);flex:0 0 auto;margin-top:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:20px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8794AB;
}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .container{padding:0 32px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions{margin-left:auto}
  .header-actions .btn{display:none}
  .points{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .section{padding-bottom:64px}
  .hero{min-height:320px}
  .hero-inner{padding:42px 36px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{gap:12px}
  .hero{border-radius:16px;min-height:0}
  .hero-inner{padding:30px 22px}
  .hero .hero-sub{font-size:15px}
  .hero-actions{margin-top:22px}
  .hero-actions .btn{width:100%}
  .hero-facts{gap:14px;font-size:12.5px}
  .stagger{grid-template-columns:minmax(0,1fr);gap:20px}
  .game-card.is-offset{margin-top:0}
  .points{grid-template-columns:minmax(0,1fr)}
  .flow{grid-template-columns:minmax(0,1fr)}
  .related{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:32px 24px}
  .cta-band .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .section{padding-bottom:48px}
  .site-footer{padding:48px 0 24px}
  .faq-item summary{padding:16px 18px;font-size:15.5px}
  .faq-body{padding:0 18px 18px}
}
@media (max-width:519px){
  body{font-size:15px}
  .logo{font-size:16px}
  .logo-mark{width:30px;height:30px;border-radius:9px}
  .hero-inner{padding:26px 18px}
  .game-card{padding:12px}
  .point-card,.flow-item{padding:22px 20px}
  .cta-band{padding:26px 18px}
  .breadcrumb{font-size:12.5px}
}

/* roulang page: category4 */
:root{
  --brand:#1F5BD7;
  --brand-dark:#1749B0;
  --brand-soft:#E8F0FE;
  --accent:#FF6A2B;
  --accent-dark:#E8551A;
  --teal:#12B39A;
  --bg:#F4F7FC;
  --card:#FFFFFF;
  --line:#E3E9F2;
  --soft:#EDF2FA;
  --ink:#0E1726;
  --text:#47536B;
  --muted:#8794AB;
  --danger:#D8443C;
  --r-card:16px;
  --r-img:12px;
  --r-hero:20px;
  --r-btn:10px;
  --sh:0 8px 24px rgba(16,42,89,.08);
  --sh-hover:0 14px 32px rgba(16,42,89,.14);
  --ease:.22s ease;
  --font:'PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--brand-dark)}
button{font-family:inherit;font-size:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.3}
h1{font-size:clamp(26px,3.8vw,40px);font-weight:700;line-height:1.25}
h2{font-size:clamp(22px,2.6vw,30px);font-weight:700}
h3{font-size:19px;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--r-btn);border:1px solid transparent;
  text-decoration:none;white-space:nowrap;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn svg{width:16px;height:16px;fill:currentColor;flex:0 0 auto}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(31,91,215,.24)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(31,91,215,.3)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(31,91,215,.24)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,106,43,.28)}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-accent:active{transform:translateY(0)}
.btn-light{background:#fff;color:var(--ink);border-color:rgba(255,255,255,.6)}
.btn-light:hover{background:#fff;color:var(--brand);transform:translateY(-1px)}
.btn-lg{padding:14px 26px;font-size:16px}
.btn-minute{padding:8px 14px;font-size:13px}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;transform:none;box-shadow:none}

/* ---------- 标签 ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.4;
  background:var(--brand-soft);color:var(--brand-dark);
}
.chip-accent{background:#FFF0E8;color:#C84714}
.chip-teal{background:#E2F7F3;color:#0B7A69}
.chip-line{background:#fff;border:1px solid var(--line);color:var(--text)}
.chip svg{width:13px;height:13px;fill:currentColor}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,42,89,.08)}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,#2E6BE6,#1F5BD7);
  display:grid;place-items:center;flex:0 0 auto;
}
.logo-mark svg{width:18px;height:18px;fill:#fff}
.logo-text{font-size:18px;font-weight:800;color:var(--ink);letter-spacing:.2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;padding:10px 13px;border-radius:8px;
  font-size:15px;color:var(--text);white-space:nowrap;
  transition:color var(--ease),background var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:5px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:center;transition:transform var(--ease);
}
.nav-link:hover{color:var(--brand);background:#F7FAFF}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:14px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  border-radius:10px;background:#fff;align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;fill:var(--ink)}
.drawer{
  position:fixed;inset:0;z-index:200;background:#fff;
  display:flex;flex-direction:column;
  padding:18px 18px 24px;
  transform:translateX(100%);transition:transform .26s ease;
  visibility:hidden;
}
.drawer.is-open{transform:translateX(0);visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:56px}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;display:grid;place-items:center}
.drawer-close svg{width:18px;height:18px;fill:var(--ink)}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-top:18px}
.drawer-nav a{
  height:48px;display:flex;align-items:center;padding:0 14px;border-radius:10px;
  color:var(--ink);font-size:16px;font-weight:500;border:1px solid transparent;
}
.drawer-nav a.active{background:var(--brand-soft);color:var(--brand-dark);font-weight:600;border-color:#D3E2FB}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:18px}
.drawer-foot .btn{width:100%}

/* ---------- 通用板块 ---------- */
main{display:block}
.section{padding:88px 0 0}
.section-tight{padding:64px 0 0}
.section-head{max-width:760px;margin-bottom:32px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--text);font-size:15.5px;line-height:1.8}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.06em;
  margin-bottom:12px;text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand);border-radius:2px}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:20px 0 0}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:#C3CCDA}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .current{color:var(--ink);font-weight:600}

/* ---------- 横幅 ---------- */
.banner{
  position:relative;margin-top:18px;border-radius:var(--r-hero);overflow:hidden;
  min-height:262px;display:flex;align-items:center;
  background:#0E1726 url('/assets/images/backpic/back-3.png') center/cover no-repeat;
}
.banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(14,23,38,.94) 0%,rgba(14,23,38,.78) 46%,rgba(14,23,38,.28) 100%);
}
.banner-inner{position:relative;z-index:2;padding:46px 44px;max-width:720px;color:#fff}
.banner h1{color:#fff;margin-bottom:16px}
.banner h1 span{color:#8FB6FF}
.banner p{color:#C8D3E6;font-size:15.5px;line-height:1.8;margin-bottom:26px;max-width:600px}
.banner-actions{display:flex;flex-wrap:wrap;gap:12px}
.banner-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.banner-meta .chip{background:rgba(255,255,255,.14);color:#DCE7FA}

/* ---------- 对比双卡 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:stretch}
.compare-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px;box-shadow:var(--sh);display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#D3E2FB}
.compare-card.is-hot{border-top:4px solid var(--accent)}
.compare-card.is-steady{border-top:4px solid var(--teal)}
.compare-top{display:flex;align-items:flex-start;gap:14px;margin-bottom:18px}
.compare-icon{
  width:46px;height:46px;border-radius:12px;flex:0 0 auto;
  display:grid;place-items:center;background:var(--brand-soft);
}
.compare-icon svg{width:22px;height:22px;fill:var(--brand)}
.compare-card.is-hot .compare-icon{background:#FFF0E8}
.compare-card.is-hot .compare-icon svg{fill:var(--accent)}
.compare-card.is-steady .compare-icon{background:#E2F7F3}
.compare-card.is-steady .compare-icon svg{fill:var(--teal)}
.compare-top h3{margin-bottom:6px}
.compare-top p{font-size:14px;color:var(--muted);line-height:1.7}
.spec-list{list-style:none;margin-top:6px;border-top:1px solid var(--line)}
.spec-list li{
  display:grid;grid-template-columns:110px 1fr;gap:14px;
  padding:14px 0;border-bottom:1px solid var(--line);font-size:14.5px;line-height:1.7;
}
.spec-list li:last-child{border-bottom:0}
.spec-list .k{color:var(--muted);font-weight:600}
.spec-list .v{color:var(--text)}
.compare-foot{margin-top:auto;padding-top:22px;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 批次卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.pack-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh);display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease);
}
.pack-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.pack-card:hover h3{color:var(--brand)}
.pack-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#DDE5F1}
.pack-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.pack-card:hover .pack-thumb img{transform:scale(1.04)}
.pack-thumb .chip{position:absolute;left:12px;top:12px;box-shadow:0 2px 8px rgba(16,42,89,.14)}
.pack-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.pack-body h3{font-size:17.5px;transition:color var(--ease)}
.pack-body p{font-size:14px;color:var(--text);line-height:1.72}
.pack-body .pack-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted)}
.pack-foot a{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:13.5px}
.pack-foot a svg{width:14px;height:14px;fill:currentColor;transition:transform var(--ease)}
.pack-foot a:hover svg{transform:translateX(3px)}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh);position:relative;
  transition:transform var(--ease),box-shadow var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.step-num{
  width:38px;height:38px;border-radius:12px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:16px;font-weight:700;margin-bottom:16px;
  box-shadow:0 6px 14px rgba(31,91,215,.26);
}
.step h3{font-size:17px;margin-bottom:10px}
.step p{font-size:14px;line-height:1.75;color:var(--text)}

/* ---------- 核对清单（深浅分栏） ---------- */
.check-panel{
  display:grid;grid-template-columns:1.05fr .95fr;gap:28px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-hero);
  padding:34px;box-shadow:var(--sh);
}
.check-panel h2{margin-bottom:14px}
.check-panel > div:first-child p{font-size:15px;color:var(--text);line-height:1.85}
.check-list{list-style:none;display:flex;flex-direction:column;gap:14px}
.check-list li{
  display:flex;gap:12px;padding:14px 16px;border-radius:12px;
  background:var(--soft);font-size:14.5px;line-height:1.72;color:var(--text);
}
.check-list svg{width:18px;height:18px;fill:var(--teal);flex:0 0 auto;margin-top:3px}
.check-list strong{color:var(--ink);font-weight:600}

/* ---------- CTA 深色条 ---------- */
.cta-band{
  margin-top:88px;background:var(--ink);border-radius:var(--r-hero);
  padding:44px 44px;display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;box-shadow:var(--sh);
  background-image:radial-gradient(circle at 88% 20%,rgba(255,106,43,.22),transparent 46%);
}
.cta-band h2{color:#fff;margin-bottom:10px}
.cta-band p{color:#A9B6CC;font-size:15px;max-width:640px;line-height:1.8}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);overflow:hidden;transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item:hover{box-shadow:var(--sh-hover)}
.faq-item[open]{border-color:#CBDDFA}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16.5px;font-weight:600;color:var(--ink);
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item[open] summary{color:var(--brand)}
.faq-icon{
  width:26px;height:26px;flex:0 0 auto;border-radius:8px;background:var(--soft);
  display:grid;place-items:center;transition:transform var(--ease),background var(--ease);
}
.faq-icon svg{width:14px;height:14px;fill:var(--brand)}
.faq-item[open] .faq-icon{transform:rotate(135deg);background:var(--brand-soft)}
.faq-body{padding:0 24px 22px 24px;font-size:15px;line-height:1.85;color:var(--text);border-left:3px solid transparent}
.faq-item[open] .faq-body{border-left:3px solid var(--brand);margin-left:0;padding-left:21px}

/* ---------- 相关分类 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.related-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#CBDDFA;color:var(--brand)}
.related-card h3{font-size:16.5px}
.related-card p{font-size:13.8px;color:var(--text);line-height:1.72}
.related-card .rel-link{font-size:13.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px;color:var(--brand)}
.related-card .rel-link svg{width:14px;height:14px;fill:currentColor;transition:transform var(--ease)}
.related-card:hover .rel-link svg{transform:translateX(3px)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#9AA7BE;margin-top:88px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.5fr;gap:40px}
.footer-logo{
  display:flex;align-items:center;gap:10px;margin-bottom:16px;
  color:#fff;font-size:18px;font-weight:800;
}
.footer-logo:hover{color:#fff}
.footer-logo .logo-mark{background:linear-gradient(135deg,#2E6BE6,#1F5BD7)}
.site-footer p{font-size:14px;line-height:1.8;color:#93A0B8}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{color:#93A0B8;font-size:14px}
.footer-links a:hover{color:#8FB6FF}
.footer-contact{list-style:none;display:flex;flex-direction:column;gap:14px}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:#93A0B8}
.footer-contact svg{width:18px;height:18px;fill:#5B8CF5;flex:0 0 auto;margin-top:3px}
.footer-bottom{
  margin-top:48px;padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#7E8BA3;
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .nav-link{padding:10px 10px;font-size:14.5px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .header-actions .btn-ghost{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:64px 0 0}
}
@media (max-width:900px){
  .compare-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .check-panel{grid-template-columns:1fr;padding:26px}
  .cta-band{margin-top:64px;padding:34px 28px}
  .banner-inner{padding:36px 26px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .nav-links{display:none}
  .header-inner{height:60px;gap:12px}
  .logo-text{font-size:16.5px}
  .logo-mark{width:30px;height:30px;border-radius:9px}
  .site-header .header-actions .btn-primary{display:none}
  .banner{min-height:228px;border-radius:16px}
  .banner h1{font-size:clamp(22px,6.4vw,30px)}
  .banner p{font-size:14.5px}
  .banner-actions .btn{width:100%}
  .section{padding:48px 0 0}
  .card-grid{grid-template-columns:1fr;gap:18px}
  .steps{grid-template-columns:1fr;gap:18px}
  .related-grid{grid-template-columns:1fr;gap:16px}
  .cta-band{margin-top:48px;border-radius:16px}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{width:100%}
  .spec-list li{grid-template-columns:96px 1fr;font-size:14px}
  .compare-card{padding:24px 22px}
  .site-footer{margin-top:56px;padding:44px 0 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  body{font-size:15px}
  .banner-inner{padding:28px 20px}
  .banner-meta{gap:8px}
  .btn{padding:11px 16px}
  .btn-lg{padding:13px 20px;font-size:15px}
  .faq-item summary{padding:17px 18px;font-size:15.5px;gap:12px}
  .faq-body{padding:0 18px 18px}
  .faq-item[open] .faq-body{padding-left:15px}
  .check-panel{padding:20px}
  .step{padding:22px 20px}
}