/* roulang page: index */
:root{
  --brand:#2D6CDF;
  --brand-600:#1F5BC4;
  --brand-050:#EAF1FD;
  --mint:#14B8A6;
  --mint-050:#E4F7F4;
  --orange:#FF8A3D;
  --orange-050:#FFF0E4;
  --bg:#F6F9FD;
  --card:#FFFFFF;
  --text:#0F2440;
  --text-2:#2E4767;
  --muted:#6B7C93;
  --line:#E3ECF7;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow:0 12px 30px rgba(15,46,80,.08);
  --shadow-hover:0 18px 40px rgba(15,46,80,.12);
  --container:1240px;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS 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;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand)}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;color:var(--text);letter-spacing:0;font-style:normal}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid rgba(45,108,223,.35);outline-offset:2px;border-radius:8px}
section[id],div[id]{scroll-margin-top:92px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 14px rgba(15,46,80,.04);
}
.header-inner{display:flex;align-items:center;gap:26px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand) 0%,var(--mint) 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:17px;box-shadow:0 8px 18px rgba(45,108,223,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:700;color:var(--text);white-space:nowrap}
.brand-text small{font-size:11.5px;color:var(--muted);letter-spacing:1.6px;white-space:nowrap}
.brand:hover .brand-text strong{color:var(--brand)}

.main-nav{display:flex;align-items:center;gap:26px}
.main-nav .nav-link{
  position:relative;padding:24px 0;font-size:15px;font-weight:500;color:var(--text-2);
  display:inline-block;white-space:nowrap;
}
.main-nav .nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:center;transition:transform .22s ease;
}
.main-nav .nav-link:hover{color:var(--brand)}
.main-nav .nav-link.is-active{color:var(--brand);font-weight:600}
.main-nav .nav-link.is-active::after{transform:scaleX(1)}

.header-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--text-2);
  font-size:14px;font-weight:500;cursor:pointer;
  transition:border-color .2s,color .2s,background-color .2s;
}
.mega-trigger:hover{border-color:var(--brand);color:var(--brand)}
.mega-trigger i{font-size:11px;transition:transform .25s ease}
.mega-wrap.is-open .mega-trigger,
.mega-wrap:hover .mega-trigger{border-color:var(--brand);color:var(--brand);background:var(--brand-050)}
.mega-wrap.is-open .mega-trigger i,
.mega-wrap:hover .mega-trigger i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:860px;z-index:60;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:0 24px 60px rgba(15,46,80,.16);
  padding:24px;display:grid;grid-template-columns:1fr 1fr 1.05fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.mega-panel::before{content:"";position:absolute;top:-14px;left:0;right:0;height:14px}
.mega-wrap:hover .mega-panel,
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:13px;font-weight:600;color:var(--muted);margin-bottom:12px;letter-spacing:.4px}
.mega-link{
  display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:10px;
  font-size:14px;color:var(--text-2);transition:background-color .18s,color .18s;
}
.mega-link:hover{background:#F2F7FE;color:var(--brand)}
.mega-link .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);flex-shrink:0}
.mega-link .dot.mint{background:var(--mint)}
.mega-link .dot.orange{background:var(--orange)}
.mega-news{display:block;padding:10px;border-radius:10px;transition:background-color .18s}
.mega-news:hover{background:#F2F7FE}
.mega-news strong{display:block;font-size:14px;font-weight:600;color:var(--text-2);line-height:1.45}
.mega-news span{display:block;font-size:12.5px;color:var(--muted);margin-top:4px}
.mega-card{
  background:linear-gradient(135deg,#EEF4FE 0%,#E7F7F5 100%);
  border-radius:14px;padding:16px;display:flex;flex-direction:column;height:100%;
}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:10px;margin-bottom:12px}
.mega-card h5{font-size:15px;margin-bottom:6px}
.mega-card p{font-size:13px;color:var(--muted);line-height:1.65}
.mega-card .mega-card-btn{
  margin-top:auto;padding-top:12px;
}
.mega-card .mega-card-btn a{
  display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--brand);
}

.nav-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--text-2);display:flex;align-items:center;justify-content:center;
  font-size:17px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}

.mobile-nav{border-top:1px solid var(--line);background:#fff;padding:10px 0 22px}
.mobile-nav a.m-link{
  display:flex;align-items:center;min-height:48px;font-size:15.5px;color:var(--text-2);
  border-bottom:1px solid #F0F5FB;
}
.mobile-nav a.m-link.is-active{color:var(--brand);font-weight:600}
.mobile-group-title{font-size:13px;font-weight:600;color:var(--muted);margin:18px 0 6px;letter-spacing:.4px}
.mobile-nav .mega-link{padding:11px 6px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;padding:12px 24px;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:transform .18s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-lg{padding:14px 30px;font-size:16px;border-radius:14px}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(45,108,223,.24)}
.btn-primary:hover{background:var(--brand-600);border-color:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px rgba(45,108,223,.3)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(45,108,223,.24)}
.btn-outline{background:#fff;border-color:#D4E1F2;color:var(--text-2)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-ghost{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:#fff;border-color:#fff;color:var(--brand)}
.btn-light-solid{background:#fff;border-color:#fff;color:var(--brand-600)}
.btn-light-solid:hover{background:#EAF1FD;border-color:#EAF1FD;color:var(--brand-600);transform:translateY(-1px)}
.btn-line-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-line-light:hover{border-color:#fff;background:rgba(255,255,255,.12);color:#fff}

/* ============ 标签 ============ */
.tag{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12.5px;font-weight:600;line-height:1.5;
  padding:4px 11px;border-radius:999px;
  background:var(--brand-050);color:var(--brand);white-space:nowrap;
}
.tag-mint{background:var(--mint-050);color:#0E8E82}
.tag-orange{background:var(--orange-050);color:#D96A1E}
.tag-soft{background:#EEF3FA;color:#5A7290}
.tag-solid{background:var(--brand);color:#fff}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:#0F2440;display:flex;align-items:center;min-height:600px}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.03)}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(9,26,48,.94) 0%,rgba(12,35,64,.80) 40%,rgba(12,35,64,.36) 72%,rgba(12,35,64,.14) 100%);
}
.hero-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:52px;align-items:center;padding-top:72px;padding-bottom:72px;
}
.hero-chip{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:#BBD5FF;background:rgba(45,108,223,.24);border:1px solid rgba(120,170,255,.35);
  padding:6px 14px;border-radius:999px;margin-bottom:20px;
}
.hero h1{
  color:#fff;font-size:clamp(30px,4vw,50px);line-height:1.22;max-width:15em;
  text-shadow:0 4px 24px rgba(0,0,0,.28);
}
.hero-sub{color:#CBDAEE;font-size:17px;margin-top:18px;max-width:30em;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-stats{display:flex;gap:14px;margin-top:42px;flex-wrap:wrap}
.stat{
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);
  border-radius:14px;padding:12px 18px;min-width:118px;backdrop-filter:blur(2px);
}
.stat strong{display:block;color:#fff;font-size:20px;font-weight:700;line-height:1.3}
.stat span{font-size:12.5px;color:#A9BDD6}
.hero-card{
  position:relative;border-radius:20px;overflow:hidden;background:#12294a;
  box-shadow:0 30px 60px rgba(4,18,36,.45);border:1px solid rgba(255,255,255,.12);
}
.hero-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-card-meta{
  position:absolute;left:0;right:0;bottom:0;padding:22px;
  background:linear-gradient(to top,rgba(7,20,38,.95) 0%,rgba(7,20,38,.62) 52%,rgba(7,20,38,0) 100%);
}
.hero-card-meta h3{color:#fff;font-size:20px;margin-top:12px;line-height:1.35}
.hero-card-meta p{color:#B9CCE2;font-size:14px;margin-top:8px}

/* ============ 板块 ============ */
.section{padding:88px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;
}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand);
  letter-spacing:1.2px;margin-bottom:10px;
}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.28}
.section-desc{color:var(--muted);font-size:15px;margin-top:12px;max-width:46em;line-height:1.8}
.link-more{
  display:inline-flex;align-items:center;gap:8px;color:var(--brand);
  font-weight:600;font-size:14.5px;white-space:nowrap;flex-shrink:0;
}
.link-more i{font-size:12px;transition:transform .2s ease}
.link-more:hover i{transform:translateX(4px)}

/* ============ 横滑片库 ============ */
.hscroll{overflow-x:auto;overflow-y:hidden;padding-bottom:16px;-webkit-overflow-scrolling:touch}
.hscroll::-webkit-scrollbar{height:8px}
.hscroll::-webkit-scrollbar-track{background:#EAF1FA;border-radius:8px}
.hscroll::-webkit-scrollbar-thumb{background:#C6D8EE;border-radius:8px}
.hscroll::-webkit-scrollbar-thumb:hover{background:#A9C4E6}
.hscroll-track{
  display:flex;gap:22px;width:max-content;
  padding:6px max(24px,calc((100vw - 1240px) / 2 + 24px)) 6px max(24px,calc((100vw - 1240px) / 2 + 24px));
}
.poster-card{width:238px;flex:0 0 238px}
.poster-link{
  display:block;height:100%;background:#fff;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow);border:1px solid var(--line);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.poster-link:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:#C9DCF6}
.poster-img{aspect-ratio:3/4;overflow:hidden;background:#DDE7F3}
.poster-img img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.poster-link:hover .poster-img img{transform:scale(1.06)}
.poster-body{padding:14px 15px 16px}
.poster-tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px}
.poster-body h3{
  font-size:15.5px;line-height:1.45;min-height:45px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.poster-meta{display:flex;justify-content:space-between;gap:8px;font-size:12.5px;color:var(--muted);margin-top:12px}

/* ============ 热播推荐 非对称栅格 ============ */
.feature-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;align-items:stretch}
.feature-main{
  position:relative;display:block;border-radius:var(--r-lg);overflow:hidden;
  background:#0F2440;box-shadow:var(--shadow);min-height:430px;
}
.feature-main img{width:100%;height:100%;min-height:430px;object-fit:cover;transition:transform .55s ease}
.feature-main:hover img{transform:scale(1.045)}
.feature-main-mask{
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(8,22,42,.95) 8%,rgba(8,22,42,.50) 46%,rgba(8,22,42,.05) 100%);
}
.feature-main-body{position:absolute;left:0;right:0;bottom:0;padding:30px}
.feature-main-body h3{color:#fff;font-size:24px;margin:14px 0 10px;line-height:1.35}
.feature-main-body p{color:#BCCEE4;font-size:14.5px;max-width:32em;line-height:1.75}
.feature-main-body .feature-cta{
  display:inline-flex;align-items:center;gap:8px;color:#8FB9FF;font-size:14px;
  font-weight:600;margin-top:16px;
}
.feature-main-body .feature-cta i{font-size:12px;transition:transform .2s}
.feature-main:hover .feature-cta i{transform:translateX(4px)}
.feature-side{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.feature-mini{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.feature-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#C9DCF6}
.feature-mini-img{aspect-ratio:16/10;overflow:hidden;background:#DDE7F3}
.feature-mini-img img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.feature-mini:hover .feature-mini-img img{transform:scale(1.06)}
.feature-mini-body{padding:14px 16px 18px;display:flex;flex-direction:column;flex:1}
.feature-mini-body h3{
  font-size:15.5px;line-height:1.42;margin-top:9px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.feature-mini-body p{font-size:13px;color:var(--muted);margin-top:7px;line-height:1.65}
.feature-mini-body .mini-meta{margin-top:auto;padding-top:12px;font-size:12.5px;color:var(--muted)}

/* ============ 双栏：榜单 + 侧栏 ============ */
.split{display:grid;grid-template-columns:1.55fr 1fr;gap:32px;align-items:start}
.rank-list{display:flex;flex-direction:column;gap:14px}
.rank-item{
  display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);
  border-radius:16px;padding:15px 18px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rank-item:hover{transform:translateX(4px);box-shadow:var(--shadow);border-color:#C9DCF6}
.rank-no{
  width:36px;height:36px;border-radius:12px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-050);color:var(--brand);font-weight:700;font-size:15px;
}
.rank-item:first-child .rank-no{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(45,108,223,.26)}
.rank-item:nth-child(2) .rank-no{background:var(--mint-050);color:#0E8E82}
.rank-main{flex:1;min-width:0}
.rank-main h3{font-size:16px;margin-bottom:4px}
.rank-main p{font-size:13.5px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rank-side-meta{display:flex;flex-direction:column;align-items:flex-end;gap:6px;flex-shrink:0}
.rank-side-meta small{font-size:12.5px;color:var(--muted);white-space:nowrap}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow);
}
.side-card + .side-card{margin-top:22px}
.side-card h3{font-size:17px;margin-bottom:16px}
.cat-link{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;border-bottom:1px dashed var(--line);
  font-size:14.5px;color:var(--text-2);
}
.cat-link:last-child{border-bottom:none;padding-bottom:0}
.cat-link:hover{color:var(--brand)}
.cat-link i{font-size:12px;color:#9DB2CC;flex-shrink:0}
.side-note{font-size:13.5px;color:var(--muted);line-height:1.8;margin-top:12px}

/* ============ 最新信息（CMS） ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#C9DCF6}
.news-link{display:flex;flex-direction:column;height:100%;padding:22px}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);margin-bottom:13px}
.news-meta time{margin-left:auto;white-space:nowrap}
.news-card h3{
  font-size:17px;line-height:1.48;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card p{
  font-size:14px;color:var(--muted);margin-top:11px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-more{
  margin-top:auto;padding-top:18px;color:var(--brand);font-size:13.5px;font-weight:600;
  display:inline-flex;align-items:center;gap:7px;
}
.news-more i{font-size:12px;transition:transform .2s ease}
.news-card:hover .news-more i{transform:translateX(4px)}
.news-empty{
  grid-column:1 / -1;text-align:center;padding:56px 24px;
  background:#fff;border:1px dashed #CFDDEF;border-radius:var(--r-lg);
  color:var(--muted);font-size:15px;
}

/* ============ 入口指引步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 22px;box-shadow:var(--shadow);position:relative;
  transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.step-no{
  display:inline-block;font-size:13px;font-weight:700;color:var(--brand);
  background:var(--brand-050);border-radius:999px;padding:4px 13px;
}
.step h3{font-size:17px;margin:15px 0 9px}
.step p{font-size:14px;color:var(--muted);line-height:1.75}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background-color:#0F2440;background-size:cover;background-position:center;
}
.cta-mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(15,36,64,.94) 0%,rgba(15,36,64,.72) 55%,rgba(15,36,64,.58) 100%)}
.cta-inner{position:relative;z-index:2;padding:78px 0;text-align:center}
.cta-inner h2{color:#fff;font-size:clamp(24px,2.8vw,34px)}
.cta-inner p{color:#C4D5EA;margin-top:16px;font-size:16px;max-width:44em;margin-left:auto;margin-right:auto}
.cta-actions{display:flex;gap:14px;justify-content:center;margin-top:34px;flex-wrap:wrap}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;gap:14px;max-width:900px;margin:0 auto}
.faq .accordion-item{
  border:1px solid var(--line);border-radius:16px;overflow:hidden;
  background:#fff;box-shadow:0 4px 14px rgba(15,46,80,.045);
}
.faq .accordion-button{
  font-size:16px;font-weight:600;color:var(--text);background:#fff;
  padding:20px 56px 20px 24px;box-shadow:none;position:relative;line-height:1.6;
}
.faq .accordion-button:not(.collapsed){color:var(--brand);background:#F5F9FF}
.faq .accordion-button:focus{box-shadow:none;outline:none}
.faq .accordion-button:focus-visible{outline:3px solid rgba(45,108,223,.35);outline-offset:-3px}
.faq .accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--brand);opacity:0;transition:opacity .22s ease;
}
.faq .accordion-button:not(.collapsed)::before{opacity:1}
.faq .accordion-button::after{
  content:"+";background-image:none;width:28px;height:28px;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:600;color:var(--brand);
  background-color:var(--brand-050);border-radius:50%;
  transition:transform .25s ease,background-color .22s ease,color .22s ease;
}
.faq .accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);background-color:var(--brand);color:#fff;background-image:none;
}
.faq .accordion-body{padding:0 24px 22px;font-size:15px;color:var(--muted);line-height:1.85}

/* ============ 页脚 ============ */
.site-footer{background:#0F2440;color:#A9BDD6;padding-top:64px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.15fr;gap:40px;padding-bottom:48px}
.site-footer .brand-text strong{color:#fff}
.site-footer .brand-text small{color:#8FA6C2}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.85;color:#91A8C4;max-width:32em}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col a{display:block;color:#9DB3CC;padding:6px 0;font-size:14px}
.footer-col a:hover{color:#6FA8FF}
.footer-note{font-size:13.5px;line-height:1.85;color:#91A8C4}
.footer-note li{position:relative;padding-left:16px;margin-bottom:8px}
.footer-note li::before{
  content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--mint);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 24px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7E96B4;
}
.footer-bottom .fb-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom a:hover{color:#6FA8FF}

/* ============ 响应式 ============ */
@media (max-width:1399.98px){
  .hscroll-track{padding-left:max(24px,calc((100vw - 1240px) / 2 + 24px));padding-right:max(24px,calc((100vw - 1240px) / 2 + 24px))}
}
@media (max-width:1199.98px){
  .hero-inner{grid-template-columns:1fr;gap:40px;padding-top:60px;padding-bottom:60px}
  .hero-card{max-width:440px}
  .feature-grid{grid-template-columns:1fr}
  .feature-main{min-height:360px}
  .feature-main img{min-height:360px}
  .split{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:991.98px){
  .section{padding:64px 0}
  .main-nav{gap:20px}
  .main-nav .nav-link{font-size:14.5px}
}
@media (max-width:767.98px){
  .container{padding:0 16px}
  .section{padding:52px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .hero{min-height:auto}
  .hero-inner{padding-top:44px;padding-bottom:48px;gap:32px}
  .hero h1{font-size:clamp(25px,7.6vw,34px);max-width:100%}
  .hero-sub{font-size:15.5px}
  .hero-actions{gap:12px;margin-top:26px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-stats{gap:10px;margin-top:30px}
  .stat{flex:1 1 0;min-width:0;padding:10px 13px}
  .stat strong{font-size:17px}
  .stat span{font-size:12px}
  .hero-card{max-width:100%}
  .hero-card-meta{padding:18px}
  .hero-card-meta h3{font-size:17px}
  .poster-card{width:182px;flex:0 0 182px}
  .hscroll-track{padding-left:16px;padding-right:16px;gap:16px}
  .poster-body{padding:12px 13px 14px}
  .poster-body h3{font-size:14.5px;min-height:42px}
  .feature-main{min-height:320px}
  .feature-main img{min-height:320px}
  .feature-main-body{padding:22px}
  .feature-main-body h3{font-size:19px}
  .feature-side{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .rank-item{padding:13px 14px;gap:12px}
  .rank-main p{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .rank-side-meta{display:none}
  .cta-inner{padding:56px 0}
  .faq .accordion-button{padding:17px 50px 17px 18px;font-size:15.5px}
  .faq .accordion-body{padding:0 18px 18px;font-size:14.5px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .side-card{padding:20px}
}
@media (max-width:399.98px){
  .poster-card{width:164px;flex:0 0 164px}
  .btn{padding:11px 18px;font-size:14.5px}
  .btn-lg{padding:12px 22px;font-size:15px}
}

/* roulang page: article */
:root{
  --brand:#2D6CDF;
  --brand-dark:#1F5AC0;
  --brand-soft:#EAF2FF;
  --mint:#14B8A6;
  --orange:#FF8A3D;
  --bg:#F6F9FD;
  --card:#FFFFFF;
  --text:#0F2440;
  --muted:#6B7C93;
  --line:#E3ECF7;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow:0 12px 30px rgba(15,46,80,.08);
  --shadow-hover:0 18px 40px rgba(15,46,80,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS 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;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
ul,ol{padding-left:22px}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;font-style:normal}
p{margin:0}
.container{max-width:1240px !important;width:100%;margin:0 auto;padding-left:24px;padding-right:24px}

/* ---------- 通用按钮 ---------- */
.btn{border-radius:var(--r-sm);font-weight:600;font-size:15px;padding:12px 22px;border:1px solid transparent;transition:all .22s ease}
.btn.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.btn-primary:hover,.btn.btn-primary:focus{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn.btn-outline-primary{background:#fff;border-color:#C9DCF8;color:var(--brand)}
.btn.btn-outline-primary:hover,.btn.btn-outline-primary:focus{background:#F4F8FF;border-color:var(--brand);color:var(--brand-dark);transform:translateY(-1px)}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(45,108,223,.28)}
.btn-lg{padding:14px 28px;font-size:16px;border-radius:var(--r-md)}

/* ---------- 徽标 / 标签 ---------- */
.badge-soft,.badge-mint,.badge-orange{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:999px;padding:5px 12px;font-size:13px;font-weight:600;line-height:1.6;
}
.badge-soft{background:var(--brand-soft);color:var(--brand-dark)}
.badge-mint{background:#E4F8F5;color:#0E8F83}
.badge-orange{background:#FFF1E6;color:#D96A1F}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.header-inner{display:flex;align-items:center;gap:26px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:var(--r-sm);
  background:linear-gradient(135deg,var(--brand),var(--mint));
  color:#fff;display:grid;place-items:center;font-size:16px;
  box-shadow:0 8px 18px rgba(45,108,223,.28);
}
.brand-text strong{display:block;font-size:16px;line-height:1.15;color:var(--text)}
.brand-text small{display:block;font-size:11px;line-height:1.3;color:var(--muted);letter-spacing:.08em}
.main-nav{margin-left:6px;gap:26px;align-items:center}
.main-nav .nav-link{
  position:relative;padding:6px 2px;font-size:15px;font-weight:500;color:#3B4E68;transition:color .2s ease;
}
.main-nav .nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.main-nav .nav-link:hover{color:var(--brand)}
.main-nav .nav-link:hover::after{transform:scaleX(1)}
.main-nav .nav-link.is-active{color:var(--brand);font-weight:600}
.main-nav .nav-link.is-active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 16px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  font-size:14px;font-weight:600;color:#33475F;cursor:pointer;transition:all .22s ease;
}
.mega-trigger:hover,.mega-trigger:focus-visible{border-color:var(--brand);color:var(--brand);box-shadow:0 6px 16px rgba(45,108,223,.14);outline:none}
.mega-trigger i{font-size:11px;transition:transform .25s ease}
.mega-wrap:hover .mega-trigger i,.mega-wrap:focus-within .mega-trigger i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:860px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:0 26px 60px rgba(15,46,80,.16);
  padding:22px;display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(10px);transition:all .25s ease;
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:13px;font-weight:600;color:var(--muted);margin-bottom:10px;letter-spacing:.04em}
.mega-link{display:block;padding:9px 10px;border-radius:10px;font-size:14px;color:#33475F;transition:all .18s ease}
.mega-link:hover{background:var(--brand-soft);color:var(--brand-dark)}
.mega-card{
  background:linear-gradient(140deg,#F1F7FF,#E9FBF8);
  border-radius:var(--r-md);padding:16px;
}
.mega-card strong{display:block;font-size:15px;margin-bottom:6px}
.mega-card p{font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:12px}
.mega-card .btn{width:100%;padding:10px 14px;font-size:14px}
.mobile-nav{padding:6px 0 16px}
.mobile-nav a{display:flex;align-items:center;min-height:48px;padding:0 6px;font-size:15px;color:#33475F;border-bottom:1px solid var(--line)}
.mobile-nav a:last-child{border-bottom:0}
.mobile-nav a.is-active{color:var(--brand);font-weight:600}
.nav-toggle{
  width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;
  color:#33475F;font-size:16px;display:grid;place-items:center;
}
.nav-toggle:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(45,108,223,.28)}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:28px 0 0}
.crumbs a:hover{color:var(--brand)}
.crumbs i{font-size:10px;color:#B7C7DA}

/* ---------- 文章头部 ---------- */
.article-head{padding:18px 0 0;max-width:880px}
.article-head .badge-soft{margin-bottom:14px}
.article-title{
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.28;
  color:var(--text);
  margin:0 0 18px;
}
.meta-row{display:flex;flex-wrap:wrap;gap:18px;font-size:14px;color:var(--muted)}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row i{color:var(--brand);font-size:13px}
.lede{
  margin-top:24px;background:#fff;border-left:4px solid var(--brand);
  border-radius:0 var(--r-md) var(--r-md) 0;
  padding:16px 22px;font-size:16px;line-height:1.8;color:#3B4E68;
  box-shadow:var(--shadow);
}

/* ---------- 封面 ---------- */
.article-cover{margin:30px 0 0}
.cover-frame{aspect-ratio:16/9;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);background:#DCE7F6}
.cover-frame img{width:100%;height:100%;object-fit:cover}
.cover-cap{font-size:13px;color:var(--muted);margin-top:10px}

/* ---------- 正文 ---------- */
.article-panel{
  background:var(--card);border-radius:20px;box-shadow:var(--shadow);
  padding:38px 40px;margin-top:30px;
}
.article-body{max-width:820px;margin:0 auto;font-size:16px;line-height:1.85;color:#20364E}
.article-body p{margin:0 0 20px}
.article-body h2{
  font-size:26px;line-height:1.4;margin:38px 0 16px;padding-left:14px;
  border-left:5px solid var(--brand);color:var(--text);
}
.article-body h3{font-size:20px;line-height:1.5;margin:28px 0 12px;color:var(--text)}
.article-body h4{font-size:17px;margin:22px 0 10px;color:var(--text)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body li{margin-bottom:8px}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(45,108,223,.35)}
.article-body a:hover{color:var(--brand-dark);border-bottom-color:var(--brand-dark)}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;background:#F0F6FF;border-left:4px solid var(--mint);
  border-radius:0 var(--r-md) var(--r-md) 0;color:#2C4straight;
}
.article-body blockquote{color:#2C4A6E}
.article-body img{border-radius:var(--r-md);margin:22px 0;width:100%;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}
.article-body code{background:var(--brand-soft);color:var(--brand-dark);padding:2px 7px;border-radius:6px;font-size:14px}
.article-body pre{
  background:#0F2440;color:#E6F0FF;padding:18px 20px;border-radius:var(--r-md);
  overflow-x:auto;font-size:14px;line-height:1.7;margin:0 0 20px;
}
.article-body pre code{background:transparent;color:inherit;padding:0}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 22px;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:#F4F8FF;color:var(--text);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* ---------- 正文空态 ---------- */
.article-empty{max-width:820px;margin:0 auto;text-align:center;padding:52px 20px}
.article-empty .empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:20px;
  background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:24px;
}
.article-empty h2{font-size:24px;margin-bottom:12px}
.article-empty p{color:var(--muted);margin-bottom:22px}

/* ---------- 相关推荐 ---------- */
.section-block{margin-top:64px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:24px}
.section-head h2{font-size:28px;line-height:1.35}
.section-head .sub{font-size:14px;color:var(--muted);margin-top:6px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{
  display:flex;flex-direction:column;background:var(--card);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.related-thumb{aspect-ratio:16/10;overflow:hidden;background:#DCE7F6}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.related-card:hover .related-thumb img{transform:scale(1.05)}
.related-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.related-body h3{font-size:17px;line-height:1.5}
.related-body p{font-size:14px;color:var(--muted);line-height:1.7}
.related-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);margin-top:auto}
.related-foot .more{color:var(--brand);font-weight:600}
.related-card:hover .related-foot .more{transform:translateX(2px)}

/* ---------- 上下篇 ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:56px}
.post-nav a{
  display:block;background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:18px 20px;transition:all .22s ease;
}
.post-nav a:hover{border-color:var(--brand);box-shadow:var(--shadow);transform:translateY(-3px)}
.post-nav .pn-label{font-size:13px;color:var(--muted);margin-bottom:6px}
.post-nav .pn-title{font-size:15px;font-weight:600;color:var(--text);line-height:1.6}
.post-nav a:hover .pn-title{color:var(--brand-dark)}
.post-nav .pn-right{text-align:right}
.back-row{margin-top:20px;display:flex;justify-content:center}
.text-link{color:var(--brand);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:8px}
.text-link:hover{color:var(--brand-dark);gap:12px}

/* ---------- CTA ---------- */
.article-cta{margin-top:72px}
.cta-inner{
  position:relative;border-radius:22px;overflow:hidden;
  padding:56px 44px;color:#fff;
  background-image:linear-gradient(90deg,rgba(15,36,64,.9),rgba(15,36,64,.6)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.cta-inner h2{font-size:clamp(24px,3vw,34px);line-height:1.35;margin-bottom:14px;max-width:640px}
.cta-inner p{font-size:16px;color:#D3E2F5;max-width:600px;margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-actions .btn.btn-primary{background:var(--brand);border-color:var(--brand)}
.cta-actions .btn.btn-ghost{
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.45);color:#fff;
  border-radius:var(--r-sm);font-weight:600;font-size:15px;padding:12px 24px;transition:all .22s ease;
}
.cta-actions .btn.btn-ghost:hover{background:rgba(255,255,255,.22);border-color:#fff;transform:translateY(-1px)}

/* ---------- FAQ ---------- */
.faq-list{margin-top:8px}
.accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  margin-bottom:14px;box-shadow:0 6px 18px rgba(15,46,80,.05);
}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--text);background:#fff;
  padding:18px 22px;box-shadow:none;
}
.accordion-button:not(.collapsed){color:var(--brand-dark);background:#F4F8FF;box-shadow:none}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(45,108,223,.18);border-color:transparent;z-index:2}
.accordion-button::after{
  content:"+";background-image:none;width:26px;height:26px;flex:0 0 26px;
  display:grid;place-items:center;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);font-size:16px;font-weight:600;line-height:1;
  transition:transform .25s ease,background .25s ease,color .25s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);background:var(--brand);color:#fff}
.accordion-body{padding:2px 22px 22px;font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F2440;color:#C7D6E8;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;padding:58px 0 34px}
.site-footer .brand-text strong{color:#fff}
.site-footer .brand-text small{color:#8FA6BF}
.footer-desc{font-size:14px;line-height:1.85;color:#A9BED6;margin-top:16px;max-width:340px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:#A9BED6;margin-bottom:11px;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:#6EA8FF;transform:translateX(2px)}
.footer-note{list-style:none;padding:0;margin:0}
.footer-note li{font-size:14px;color:#A9BED6;margin-bottom:11px;line-height:1.7}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8FA6BF;
}
.fb-links{display:flex;gap:16px}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .mega-panel{width:720px;grid-template-columns:1fr 1fr;gap:18px}
  .mega-panel .mega-col.mega-third{display:none}
}
@media (max-width:991.98px){
  .header-inner{height:66px;gap:14px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .article-panel{padding:30px 26px}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
  body{font-size:15px}
  .article-title{font-size:26px}
  .lede{font-size:15px;padding:14px 16px}
  .article-panel{padding:22px 16px;border-radius:16px}
  .article-body h2{font-size:21px;margin-top:30px}
  .article-body h3{font-size:18px}
  .related-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav .pn-right{text-align:left}
  .section-head h2{font-size:23px}
  .cta-inner{padding:36px 22px}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding:42px 0 26px}
  .section-block{margin-top:52px}
  .site-footer{margin-top:60px}
  .accordion-button{font-size:15px;padding:16px 18px}
  .accordion-body{padding:2px 18px 18px}
}

/* roulang page: category1 */
:root{
  --brand:#2D6CDF;
  --brand-600:#1F5CC4;
  --brand-700:#194FAB;
  --brand-soft:#EAF1FE;
  --mint:#14B8A6;
  --mint-soft:#E4F7F5;
  --orange:#FF8A3D;
  --orange-soft:#FFF1E7;
  --bg:#F6F9FD;
  --card:#FFFFFF;
  --ink:#0F2440;
  --muted:#6B7C93;
  --line:#E3ECF7;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 12px 30px rgba(15,46,80,.08);
  --shadow-lg:0 18px 40px rgba(15,46,80,.12);
  --container:1240px;
}

*,*::before,*::after{box-sizing:border-box;}

html{scroll-behavior:smooth;scroll-padding-top:92px;}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background .18s ease,border-color .18s ease;}
button{font-family:inherit;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:800;letter-spacing:0;color:var(--ink);}
p{margin:0;}

a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:3px solid rgba(45,108,223,.35);
  outline-offset:2px;
  border-radius:10px;
}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
}

.header-inner{
  display:flex;
  align-items:center;
  gap:26px;
  height:72px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}

.brand-mark{
  width:42px;
  height:42px;
  border-radius:13px;
  display:grid;
  place-items:center;
  color:#fff;
  font-size:18px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--mint) 100%);
  box-shadow:0 8px 18px rgba(45,108,223,.28);
}

.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;font-weight:800;color:var(--ink);}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:1.5px;}

.main-nav{align-items:center;gap:4px;}

.main-nav .nav-link{
  position:relative;
  padding:8px 2px;
  margin:0 13px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  border-radius:0;
  background:transparent;
}
.main-nav .nav-link:hover{color:var(--brand);}
.main-nav .nav-link.is-active{color:var(--brand);}
.main-nav .nav-link.is-active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-3px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}

.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}

.mega-wrap{position:relative;}

.mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  font-size:14px;
  font-weight:700;
  cursor:pointer;
  transition:all .2s ease;
}
.mega-trigger i{font-size:12px;transition:transform .2s ease;}
.mega-trigger:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.mega-wrap:hover .mega-trigger i{transform:rotate(180deg);}
.mega-wrap.open .mega-trigger{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}

.mega-panel{
  position:absolute;
  right:0;
  top:calc(100% + 16px);
  width:840px;
  padding:26px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:0 26px 60px rgba(15,46,80,.16);
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:26px;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
}
.mega-panel::before{
  content:"";
  position:absolute;
  top:-18px;left:0;right:0;
  height:18px;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-wrap.open .mega-panel{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}

.mega-col h5{
  font-size:13px;
  font-weight:700;
  color:var(--muted);
  letter-spacing:.6px;
  margin-bottom:12px;
}

.mega-link{
  display:flex;
  align-items:center;
  gap:10px;
  height:40px;
  padding:0 12px;
  border-radius:10px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
}
.mega-link i{font-size:12px;color:var(--brand);}
.mega-link:hover{background:var(--brand-soft);color:var(--brand);}

.mega-card{
  display:block;
  border-radius:14px;
  overflow:hidden;
  border:1px solid var(--line);
  background:#fff;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.mega-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#CFE0FA;}
.mega-card .thumb{aspect-ratio:16/9;overflow:hidden;}
.mega-card .thumb img{width:100%;height:100%;object-fit:cover;}
.mega-card .txt{padding:12px 14px 14px;}
.mega-card .txt strong{display:block;font-size:14px;font-weight:800;color:var(--ink);}
.mega-card .txt span{display:block;font-size:12px;color:var(--muted);margin-top:4px;}

.nav-toggle{
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  font-size:16px;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

.mobile-nav{background:#fff;border-top:1px solid var(--line);padding:10px 0 18px;}
.mobile-nav .container{display:flex;flex-direction:column;}
.m-link{
  display:flex;
  align-items:center;
  height:48px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.m-link.is-active{color:var(--brand);}
.m-link:last-child{border-bottom:0;}

/* ============ 通用按钮 ============ */
.btn-brand,.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  height:48px;
  padding:0 26px;
  border-radius:12px;
  font-size:15px;
  font-weight:700;
  cursor:pointer;
  border:1px solid transparent;
  transition:all .2s ease;
  white-space:nowrap;
}
.btn-brand{
  background:var(--brand);
  color:#fff;
  box-shadow:0 10px 22px rgba(45,108,223,.24);
}
.btn-brand:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px rgba(45,108,223,.32);}
.btn-ghost{
  background:#fff;
  border-color:var(--line);
  color:var(--ink);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-brand:focus-visible,.btn-ghost:focus-visible{outline:3px solid rgba(45,108,223,.35);outline-offset:2px;}

/* ============ 页面头 ============ */
.page-head{padding:26px 0 0;}

.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:16px;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb i{font-size:10px;color:#B6C6DA;}

.hero-banner{
  position:relative;
  border-radius:24px;
  overflow:hidden;
  min-height:352px;
  display:flex;
  align-items:center;
  padding:52px 56px;
  background-image:linear-gradient(100deg,rgba(9,29,58,.90) 0%,rgba(9,29,58,.62) 52%,rgba(9,29,58,.30) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.hero-banner .inner{max-width:660px;position:relative;z-index:2;}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.28);
  color:#DBE9FF;
  font-size:13px;
  font-weight:600;
  margin-bottom:18px;
}
.hero-tag i{color:#6FE3D6;font-size:11px;}
.hero-banner h1{
  color:#fff;
  font-size:clamp(30px,4vw,48px);
  line-height:1.18;
  margin-bottom:16px;
}
.hero-banner .lead{
  color:#C6D8F2;
  font-size:16px;
  line-height:1.8;
  max-width:560px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-banner .btn-ghost{
  background:rgba(255,255,255,.12);
  border-color:rgba(255,255,255,.35);
  color:#fff;
}
.hero-banner .btn-ghost:hover{background:#fff;color:var(--brand);border-color:#fff;}

/* ============ 筛选条 ============ */
.filter-bar{
  margin-top:28px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:20px 24px;
  display:flex;
  align-items:center;
  gap:18px;
  flex-wrap:wrap;
}
.filter-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:800;
  color:var(--ink);
  flex-shrink:0;
}
.filter-label i{color:var(--brand);font-size:13px;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  height:36px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--muted);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:all .18s ease;
}
.chip:hover{border-color:#B9D1F7;color:var(--brand);background:#F4F8FF;}
.chip.is-on{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  box-shadow:0 8px 18px rgba(45,108,223,.26);
}

/* ============ 主体双栏 ============ */
.section{padding:64px 0 0;}
.section-head{margin-bottom:26px;}
.section-head .eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:800;
  letter-spacing:1.2px;
  color:var(--mint);
  margin-bottom:8px;
}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3;}
.section-head p{color:var(--muted);font-size:15px;margin-top:10px;max-width:760px;}

.cat-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 336px;
  gap:28px;
  align-items:start;
}

.game-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}

.game-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.game-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#CFE0FA;}

.game-card .cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:#E9F0FA;}
.game-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.game-card:hover .cover img{transform:scale(1.05);}
.cover-badge{
  position:absolute;
  left:12px;top:12px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  background:rgba(255,255,255,.94);
  color:var(--brand);
  font-size:12px;
  font-weight:800;
  display:inline-flex;
  align-items:center;
  box-shadow:0 6px 14px rgba(15,46,80,.14);
}
.cover-heat{
  position:absolute;
  right:12px;bottom:12px;
  height:26px;
  padding:0 11px;
  border-radius:999px;
  background:rgba(15,36,64,.72);
  color:#fff;
  font-size:12px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  gap:5px;
}
.cover-heat i{color:var(--orange);font-size:10px;}

.game-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.game-card h3{font-size:18px;line-height:1.45;margin-bottom:8px;}
.game-card .desc{font-size:14px;line-height:1.75;color:var(--muted);flex:1;}
.game-card .meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:14px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 11px;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
  background:var(--brand-soft);
  color:var(--brand-700);
}
.tag.mint{background:var(--mint-soft);color:#0B8A7D;}
.tag.orange{background:var(--orange-soft);color:#C15E17;}

.card-link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  margin-top:16px;
  font-size:14px;
  font-weight:800;
  color:var(--brand);
}
.card-link i{font-size:11px;transition:transform .2s ease;}
.game-card:hover .card-link i{transform:translateX(4px);}

/* ============ 侧栏 ============ */
.side-col{display:flex;flex-direction:column;gap:22px;position:sticky;top:96px;}

.side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:22px;
}
.side-card h3{
  font-size:17px;
  display:flex;
  align-items:center;
  gap:9px;
  margin-bottom:18px;
}
.side-card h3 i{color:var(--orange);font-size:15px;}

.rank-item{display:flex;gap:12px;align-items:flex-start;padding:11px 0;border-bottom:1px dashed var(--line);}
.rank-item:last-child{border-bottom:0;padding-bottom:0;}
.rank-no{
  width:26px;height:26px;
  flex-shrink:0;
  border-radius:9px;
  display:grid;place-items:center;
  font-size:13px;font-weight:800;
  background:#F1F5FB;color:var(--muted);
}
.rank-item:nth-child(1) .rank-no{background:var(--brand);color:#fff;}
.rank-item:nth-child(2) .rank-no{background:#5C90E8;color:#fff;}
.rank-item:nth-child(3) .rank-no{background:#8FB4EE;color:#fff;}
.rank-body{flex:1;min-width:0;}
.rank-body strong{display:block;font-size:14px;font-weight:700;color:var(--ink);}
.rank-bar{height:5px;border-radius:99px;background:#EEF3FA;margin-top:8px;overflow:hidden;}
.rank-bar span{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--brand),var(--mint));}
.rank-val{font-size:12px;font-weight:800;color:var(--brand);flex-shrink:0;padding-top:2px;}

.side-tip{
  background:linear-gradient(160deg,#0F2440 0%,#173A66 100%);
  border-radius:var(--radius);
  padding:24px;
  color:#D3E3F8;
  box-shadow:var(--shadow);
}
.side-tip h3{color:#fff;font-size:17px;margin-bottom:12px;}
.side-tip p{font-size:14px;line-height:1.8;color:#A9C2DF;}
.side-tip ul{margin-top:14px;display:flex;flex-direction:column;gap:9px;}
.side-tip li{font-size:14px;display:flex;gap:9px;align-items:flex-start;color:#C6D8F2;}
.side-tip li i{color:#6FE3D6;font-size:12px;margin-top:6px;}
.side-tip .btn-brand{margin-top:20px;width:100%;background:#fff;color:#0F2440;box-shadow:none;}
.side-tip .btn-brand:hover{background:#EAF1FE;color:var(--brand-700);}

/* ============ 更新条 ============ */
.notice-strip{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  background:#fff;
  border:1px solid var(--line);
  border-left:4px solid var(--mint);
  border-radius:14px;
  padding:18px 24px;
  box-shadow:var(--shadow);
}
.notice-strip strong{font-size:15px;display:inline-flex;align-items:center;gap:9px;}
.notice-strip strong i{color:var(--mint);}
.notice-strip p{font-size:14px;color:var(--muted);flex:1;min-width:220px;}

/* ============ 步骤 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.step-card{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px 24px;
  box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.step-num{
  width:44px;height:44px;
  border-radius:14px;
  display:grid;place-items:center;
  font-size:17px;font-weight:800;
  background:var(--brand-soft);
  color:var(--brand);
  margin-bottom:16px;
}
.step-card h3{font-size:18px;margin-bottom:10px;}
.step-card p{font-size:14px;line-height:1.8;color:var(--muted);}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--shadow);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .2s ease;
}
.faq-item[open]{border-color:#C7DBF8;}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 58px 20px 22px;
  font-size:16px;
  font-weight:700;
  color:var(--ink);
  position:relative;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:22px;top:50%;
  transform:translateY(-50%);
  font-size:20px;
  font-weight:700;
  line-height:1;
  color:var(--brand);
  transition:transform .25s ease;
}
.faq-item[open] summary::after{content:"−";transform:translateY(-50%) rotate(180deg);}
.faq-item summary:hover{color:var(--brand);}
.faq-item[open] summary{color:var(--brand);}
.faq-answer{
  margin:0 22px 22px;
  padding-left:16px;
  border-left:3px solid var(--brand);
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  padding:56px 56px;
  background-image:linear-gradient(100deg,rgba(9,29,58,.90) 0%,rgba(9,29,58,.58) 60%,rgba(9,29,58,.34) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band .txt{max-width:620px;}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,34px);line-height:1.3;margin-bottom:12px;}
.cta-band p{color:#BED3EF;font-size:15px;line-height:1.8;}
.cta-band .actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.35);color:#fff;}
.cta-band .btn-ghost:hover{background:#fff;color:var(--brand);border-color:#fff;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:80px;
  background:#0F2440;
  color:#B7CBE6;
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text small{color:#7E9AC0;}
.footer-desc{font-size:14px;line-height:1.85;color:#9DB5D4;max-width:360px;}

.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;color:#9DB5D4;padding:6px 0;}
.footer-col a:hover{color:#6FE3D6;}
.footer-note li{font-size:14px;color:#9DB5D4;padding:6px 0;line-height:1.7;}

.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#7E9AC0;
}
.fb-links{display:flex;gap:18px;flex-wrap:wrap;}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .game-grid{gap:20px;}
}
@media (max-width:1199px){
  .cat-layout{grid-template-columns:minmax(0,1fr) 300px;gap:22px;}
  .game-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .mega-panel{width:720px;}
}
@media (max-width:991px){
  .cat-layout{grid-template-columns:1fr;}
  .side-col{position:static;}
  .hero-banner{padding:44px 36px;min-height:320px;}
  .steps{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-band{padding:44px 36px;}
  .mega-panel{display:none;}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px;}
  .header-inner{height:64px;gap:12px;}
  .brand-mark{width:38px;height:38px;border-radius:11px;font-size:16px;}
  .brand-text strong{font-size:15px;}
  .section{padding:48px 0 0;}
  .hero-banner{border-radius:18px;padding:34px 22px;min-height:290px;}
  .hero-banner .lead{font-size:15px;}
  .filter-bar{padding:16px;gap:14px;}
  .game-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .cta-band{border-radius:18px;padding:36px 22px;}
  .site-footer{margin-top:56px;padding-top:48px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .hero-actions{width:100%;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{flex:1 1 100%;}
  .chip{height:34px;padding:0 15px;font-size:13px;}
  .notice-strip{padding:16px 18px;}
}

/* roulang page: category2 */
:root{
  --brand:#1F7AE0;
  --brand-dark:#155FB5;
  --mint:#14B8A6;
  --orange:#FF8A3D;
  --bg:#F6F9FD;
  --card:#FFFFFF;
  --ink:#0F2440;
  --muted:#6B7C93;
  --line:#E3ECF7;
  --r-card:18px;
  --r-btn:12px;
  --shadow:0 12px 30px rgba(15,46,80,.08);
  --shadow-lg:0 18px 40px rgba(15,46,80,.12);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;letter-spacing:0;}
p{margin:0;}
button{font-family:inherit;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 12px rgba(15,46,80,.04);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand),var(--mint));
  color:#fff;display:grid;place-items:center;font-size:17px;
  box-shadow:0 6px 16px rgba(31,122,224,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:800;color:var(--ink);}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:.06em;}

.main-nav{display:flex;align-items:center;gap:26px;margin-left:6px;}
.main-nav .nav-link{
  position:relative;
  display:block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  border-radius:0;
}
.main-nav .nav-link::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-1px;height:2px;border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.main-nav .nav-link:hover{color:var(--brand);}
.main-nav .nav-link:hover::after,
.main-nav .nav-link.is-active::after{transform:scaleX(1);}
.main-nav .nav-link.is-active{color:var(--brand);font-weight:600;}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}

.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  font-size:14px;font-weight:600;
  cursor:pointer;
  transition:all .22s ease;
}
.mega-trigger i{font-size:12px;transition:transform .22s ease;color:var(--brand);}
.mega-wrap:hover .mega-trigger,
.mega-wrap:focus-within .mega-trigger{
  border-color:var(--brand);
  color:var(--brand);
  box-shadow:0 8px 20px rgba(31,122,224,.14);
}
.mega-wrap:hover .mega-trigger i,
.mega-wrap:focus-within .mega-trigger i{transform:rotate(180deg);}

.mega-panel{
  position:absolute;right:0;top:calc(100% + 16px);
  width:840px;
  background:#fff;
  border-radius:18px;
  border:1px solid var(--line);
  box-shadow:0 24px 60px rgba(15,46,80,.16);
  padding:26px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col-title{font-size:13px;font-weight:700;color:var(--muted);margin-bottom:12px;letter-spacing:.04em;}
.mega-link{
  display:block;
  padding:9px 12px;
  border-radius:10px;
  font-size:14px;
  color:var(--ink);
  transition:background .2s ease,color .2s ease;
}
.mega-link span{display:block;font-size:12px;color:var(--muted);margin-top:2px;}
.mega-link:hover{background:#EEF5FF;color:var(--brand);}
.mega-card{
  display:block;
  padding:16px;
  border-radius:14px;
  background:linear-gradient(135deg,#EAF3FF,#F4FBF9);
  border:1px solid var(--line);
  transition:all .22s ease;
}
.mega-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);color:var(--ink);}
.mega-card strong{display:block;font-size:14.5px;margin-bottom:6px;}
.mega-card em{display:block;font-style:normal;font-size:12.5px;color:var(--muted);line-height:1.6;}

.nav-toggle{
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  display:grid;place-items:center;font-size:16px;cursor:pointer;
  transition:all .2s ease;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

.mobile-nav{background:#fff;border-top:1px solid var(--line);}
.mobile-nav-inner{padding:12px 24px 22px;}
.m-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 12px;border-radius:12px;
  font-size:15px;font-weight:500;color:var(--ink);
}
.m-link:hover{background:#EEF5FF;color:var(--brand);}
.m-link.is-active{color:var(--brand);font-weight:700;background:#EEF5FF;}
.m-group-title{font-size:13px;font-weight:700;color:var(--muted);margin:16px 12px 8px;}

/* ============ 页面首屏 ============ */
.page-hero{position:relative;overflow:hidden;background:#0F2440;}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.6;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(9,26,48,.94) 0%,rgba(9,26,48,.82) 48%,rgba(9,26,48,.42) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  padding:76px 0 68px;
  color:#fff;
  max-width:800px;
}
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:#9FB8D6;margin-bottom:20px;
}
.crumb a{color:#9FB8D6;}
.crumb a:hover{color:#fff;}
.crumb i{font-size:10px;opacity:.7;}
.hero-tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;
  background:rgba(20,184,166,.18);
  border:1px solid rgba(20,184,166,.5);
  color:#7EF0DF;font-size:13px;font-weight:600;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(30px,4vw,52px);
  font-weight:800;
  line-height:1.22;
  color:#fff;
  margin-bottom:18px;
}
.page-hero h1 em{font-style:normal;color:#7FC0FF;}
.hero-sub{
  font-size:17px;
  color:#C6D8EC;
  max-width:640px;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}

.btn-brand{
  display:inline-flex;align-items:center;gap:9px;
  height:50px;padding:0 28px;
  border-radius:var(--r-btn);
  background:var(--brand);
  color:#fff;font-size:15.5px;font-weight:600;
  border:1px solid var(--brand);
  cursor:pointer;
  transition:all .22s ease;
}
.btn-brand:hover{
  background:var(--brand-dark);
  border-color:var(--brand-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 14px 28px rgba(31,122,224,.3);
}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;
  height:50px;padding:0 26px;
  border-radius:var(--r-btn);
  background:rgba(255,255,255,.08);
  color:#fff;
  border:1px solid rgba(255,255,255,.42);
  font-size:15.5px;font-weight:600;
  transition:all .22s ease;
}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.16);color:#fff;transform:translateY(-1px);}
.btn-brand:focus-visible,
.btn-ghost:focus-visible,
.btn-line:focus-visible{outline:3px solid rgba(31,122,224,.4);outline-offset:2px;}

.hero-stats{display:flex;flex-wrap:wrap;gap:14px;}
.stat-pill{
  display:flex;align-items:center;gap:10px;
  padding:10px 18px;border-radius:14px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(2px);
}
.stat-pill i{color:var(--mint);font-size:14px;}
.stat-pill b{font-size:15px;color:#fff;font-weight:700;}
.stat-pill span{font-size:13px;color:#AFC7E1;}

/* ============ 通用区块 ============ */
.section{padding:84px 0;}
.section-sm{padding:64px 0;}
.section-head{margin-bottom:38px;}
.section-head .kicker{
  display:inline-block;
  font-size:13px;font-weight:700;color:var(--brand);
  letter-spacing:.08em;margin-bottom:10px;
}
.section-head h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:15.5px;max-width:720px;}

/* 更新条 */
.update-strip{background:#fff;border-bottom:1px solid var(--line);padding:26px 0;}
.strip-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap;}
.strip-head h2{font-size:19px;display:flex;align-items:center;gap:10px;}
.strip-head h2 i{color:var(--orange);font-size:15px;}
.strip-head .strip-note{font-size:13px;color:var(--muted);}
.strip-scroll{
  display:flex;gap:18px;overflow-x:auto;padding-bottom:10px;
  scrollbar-width:thin;
}
.strip-scroll::-webkit-scrollbar{height:6px;}
.strip-scroll::-webkit-scrollbar-thumb{background:#CFE0F5;border-radius:999px;}
.strip-card{
  flex:0 0 232px;
  background:var(--card);
  border-radius:16px;
  border:1px solid var(--line);
  overflow:hidden;
  transition:all .22s ease;
}
.strip-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#CFE3FA;color:inherit;}
.strip-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#E8F1FB;}
.strip-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.strip-card:hover .strip-thumb img{transform:scale(1.05);}
.strip-badge{
  position:absolute;left:10px;top:10px;
  padding:3px 10px;border-radius:999px;
  background:rgba(255,138,61,.95);
  color:#fff;font-size:12px;font-weight:600;
}
.strip-body{padding:14px 16px 18px;}
.strip-body h3{font-size:15px;margin-bottom:8px;line-height:1.45;}
.strip-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);}

/* ============ 主体双栏：目录 + 列表流 ============ */
.shell-grid{
  display:grid;
  grid-template-columns:300px 1fr;
  gap:36px;
  align-items:start;
}
.side-sticky{position:sticky;top:96px;}
.side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow);
  margin-bottom:20px;
}
.side-card h3{font-size:16px;margin-bottom:6px;}
.side-card .side-sub{font-size:13px;color:var(--muted);margin-bottom:18px;}

.toc-list{position:relative;padding-left:24px;}
.toc-list::before{
  content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;
  background:var(--line);border-radius:2px;
}
.toc-item{
  position:relative;display:block;
  padding:9px 6px;
  font-size:14.5px;
  color:var(--muted);
  transition:color .2s ease;
}
.toc-item::before{
  content:"";position:absolute;left:-23px;top:18px;
  width:10px;height:10px;border-radius:50%;
  background:#fff;border:2px solid #CBDCF0;
  transition:all .2s ease;
}
.toc-item:hover{color:var(--brand);}
.toc-item.is-active{color:var(--brand);font-weight:700;}
.toc-item.is-active::before{border-color:var(--brand);background:var(--brand);}

.side-tip{
  background:linear-gradient(135deg,#EAF3FF,#F3FBF9);
  border:1px solid var(--line);
}
.side-tip h4{font-size:15px;margin-bottom:10px;display:flex;align-items:center;gap:8px;}
.side-tip h4 i{color:var(--brand);}
.side-tip p{font-size:13.5px;color:var(--muted);line-height:1.7;}
.side-cta{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:16px;font-size:14px;font-weight:600;color:var(--brand);
}
.side-cta:hover i{transform:translateX(4px);}
.side-cta i{transition:transform .2s ease;font-size:12px;}

.flow-head{margin-bottom:26px;}
.flow-head h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:10px;}
.flow-head p{color:var(--muted);font-size:15.5px;max-width:760px;}

.flow-group{margin-bottom:34px;}
.group-title{
  display:flex;align-items:center;gap:12px;
  margin-bottom:16px;
}
.group-title .g-num{
  width:34px;height:34px;border-radius:10px;
  background:#EAF3FF;color:var(--brand);
  display:grid;place-items:center;
  font-size:14px;font-weight:800;
}
.group-title h3{font-size:19px;}
.group-title .g-line{flex:1;height:1px;background:var(--line);}

.flow-item{
  display:grid;
  grid-template-columns:136px 1fr;
  gap:20px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:18px;
  margin-bottom:16px;
  transition:all .22s ease;
}
.flow-item:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
  border-color:#CFE3FA;
}
.flow-thumb{
  width:136px;height:92px;
  border-radius:14px;
  overflow:hidden;
  background:#E8F1FB;
  position:relative;
}
.flow-thumb img{width:100%;height:100%;object-fit:cover;}
.flow-num{
  position:absolute;left:8px;top:8px;
  min-width:26px;height:26px;padding:0 8px;
  border-radius:999px;
  background:rgba(15,36,64,.78);
  color:#fff;font-size:12px;font-weight:700;
  display:grid;place-items:center;
}
.flow-body h3{font-size:17px;margin-bottom:8px;}
.flow-body p{font-size:14.5px;color:var(--muted);margin-bottom:12px;}
.flow-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12.5px;color:var(--muted);}
.chip{
  display:inline-flex;align-items:center;
  padding:4px 11px;border-radius:999px;
  background:#EEF5FF;color:var(--brand);
  font-size:12.5px;font-weight:600;
}
.chip-mint{background:#E6F8F5;color:#0E8E82;}
.chip-orange{background:#FFF1E6;color:#D9701F;}
.flow-link{
  margin-left:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;font-weight:600;color:var(--brand);
}
.flow-link i{font-size:11px;transition:transform .2s ease;}
.flow-item:hover .flow-link i{transform:translateX(3px);}

.notice-card{
  display:flex;gap:16px;
  background:linear-gradient(135deg,#0F2440,#18405F);
  color:#D7E6F6;
  border-radius:var(--r-card);
  padding:24px 26px;
  margin-top:34px;
}
.notice-card .n-icon{
  flex:0 0 44px;height:44px;border-radius:12px;
  background:rgba(255,138,61,.2);
  color:var(--orange);
  display:grid;place-items:center;font-size:18px;
}
.notice-card h3{font-size:16.5px;color:#fff;margin-bottom:8px;}
.notice-card p{font-size:14px;color:#A9C3DC;}

/* ============ 场景卡片 ============ */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.scene-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 26px;
  box-shadow:var(--shadow);
  transition:all .22s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#CFE3FA;}
.scene-icon{
  width:48px;height:48px;border-radius:14px;
  display:grid;place-items:center;font-size:19px;
  background:#EAF3FF;color:var(--brand);
  margin-bottom:18px;
}
.scene-card:nth-child(2) .scene-icon{background:#E6F8F5;color:#0E8E82;}
.scene-card:nth-child(3) .scene-icon{background:#FFF1E6;color:#D9701F;}
.scene-card h3{font-size:18px;margin-bottom:10px;}
.scene-card p{font-size:14.5px;color:var(--muted);margin-bottom:16px;}
.scene-list li{
  position:relative;padding-left:20px;
  font-size:14px;color:var(--ink);margin-bottom:8px;
}
.scene-list li::before{
  content:"";position:absolute;left:0;top:10px;
  width:7px;height:7px;border-radius:50%;background:var(--mint);
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  border:1px solid var(--line);
  border-radius:16px !important;
  background:#fff;
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:0 6px 18px rgba(15,46,80,.05);
}
.accordion-button{
  font-size:16px;font-weight:700;color:var(--ink);
  background:#fff;
  padding:20px 22px;
  box-shadow:none !important;
  border-radius:16px !important;
}
.accordion-button:not(.collapsed){color:var(--brand);background:#F8FBFF;}
.accordion-button::after{
  background-image:none;
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:13px;
  color:var(--brand);
  width:auto;height:auto;
  display:grid;place-items:center;
  transition:transform .25s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(135deg);}
.accordion-body{
  padding:0 22px 22px 22px;
  font-size:15px;color:var(--muted);
  border-left:3px solid var(--brand);
  margin-left:22px;
  padding-left:18px;
  padding-top:4px;
}

/* ============ CTA ============ */
.cta-section{position:relative;overflow:hidden;background:#0F2440;}
.cta-section .cta-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  opacity:.28;
}
.cta-inner{
  position:relative;z-index:2;
  padding:76px 0;
  text-align:center;
  color:#fff;
}
.cta-inner h2{font-size:clamp(24px,2.8vw,34px);color:#fff;margin-bottom:14px;}
.cta-inner p{color:#B7CDE5;font-size:15.5px;max-width:640px;margin:0 auto 30px;}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}
.btn-line{
  display:inline-flex;align-items:center;gap:9px;
  height:50px;padding:0 26px;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.45);
  color:#fff;font-size:15.5px;font-weight:600;
  background:transparent;
  transition:all .22s ease;
}
.btn-line:hover{border-color:#fff;background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px);}

/* ============ 页脚 ============ */
.site-footer{
  background:#0F2440;
  color:#C7D6E8;
  padding-top:64px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1.2fr;
  gap:38px;
}
.footer-brand .brand-text strong{color:#fff;font-size:16px;}
.footer-brand .brand-text small{color:#8CA5C0;}
.footer-desc{
  margin-top:16px;
  font-size:14px;
  color:#8FA7C1;
  max-width:340px;
  line-height:1.8;
}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-col a{
  display:block;
  font-size:14px;
  color:#9FB4CC;
  padding:6px 0;
  transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-note li{
  font-size:14px;color:#9FB4CC;padding:6px 0;
  position:relative;padding-left:14px;
}
.footer-note li::before{
  content:"";position:absolute;left:0;top:16px;
  width:5px;height:5px;border-radius:50%;background:var(--mint);
}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:#7F95AE;
}
.fb-links span{color:#7F95AE;}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .mega-panel{width:760px;}
}
@media (max-width:1199px){
  .shell-grid{grid-template-columns:260px 1fr;gap:26px;}
  .mega-panel{width:680px;}
}
@media (max-width:991px){
  .container{padding-left:20px;padding-right:20px;}
  .header-inner{height:64px;gap:16px;}
  .hero-inner{padding:56px 0 52px;}
  .page-hero{min-height:auto;}
  .section{padding:56px 0;}
  .section-sm{padding:46px 0;}
  .shell-grid{grid-template-columns:1fr;}
  .side-sticky{position:static;}
  .scene-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .page-hero h1{font-size:28px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions{gap:12px;}
  .btn-brand,.btn-ghost,.btn-line{width:100%;justify-content:center;}
  .cta-actions{flex-direction:column;}
  .strip-card{flex:0 0 200px;}
  .flow-item{grid-template-columns:1fr;gap:14px;}
  .flow-thumb{width:100%;height:170px;}
  .scene-grid{grid-template-columns:1fr;}
  .notice-card{flex-direction:column;gap:12px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .hero-stats{gap:10px;}
  .stat-pill{padding:8px 14px;}
  .side-card{padding:20px;}
  .accordion-button{font-size:15px;padding:16px 16px;}
  .accordion-body{margin-left:16px;padding-left:14px;}
}