/* roulang page: index */
:root{
  --blue:#2E6BE6;
  --blue-d:#1F55C4;
  --blue-l:#EEF4FF;
  --ink:#16233A;
  --muted:#5A6B85;
  --bg:#F7F9FD;
  --line:#E6ECF7;
  --peach:#FF8A5B;
  --green:#35C28F;
  --green-d:#1F9E74;
  --r:14px;
  --shadow:0 8px 24px rgba(22,35,58,.06);
  --shadow-h:0 14px 32px rgba(22,35,58,.10);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:#fff;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
h1,h2,h3{margin:0;font-weight:700}
p{margin:0}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
section{padding:80px 0;scroll-margin-top:88px}
.alt{background:var(--bg)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px rgba(46,107,230,.18);
  border-radius:8px;
}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 12px rgba(22,35,58,.04)}
.nav{position:relative;display:flex;align-items:center;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,#EEF4FF,#DDE9FF);display:grid;place-items:center}
.brand-name{font-size:18px;font-weight:700;letter-spacing:.01em}
.nav-menu{margin-left:auto;display:flex;align-items:center;gap:24px}
.nav-menu a{font-size:15px;color:var(--muted);padding:6px 0;border-bottom:2px solid transparent;transition:color .18s ease,border-color .18s ease}
.nav-menu a:hover,.nav-menu a:focus-visible{color:var(--blue);border-bottom-color:var(--blue)}
.nav-actions{display:flex;align-items:center;gap:10px}
.icon-btn{width:44px;height:44px;border-radius:10px;display:grid;place-items:center;color:var(--muted);transition:background .18s ease,color .18s ease}
.icon-btn:hover{background:var(--blue-l);color:var(--blue)}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 22px;border-radius:10px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .18s ease,transform .18s ease,border-color .18s ease,color .18s ease}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-d);transform:translateY(-1px)}
.btn-ghost{background:#fff;border-color:var(--blue);color:var(--blue)}
.btn-ghost:hover{background:var(--blue-l)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}

/* ---------- section head ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.sec-head h2{font-size:30px;line-height:1.3}
.sec-sub{margin-top:8px;font-size:14px;color:var(--muted)}
.more{font-size:14px;font-weight:600;color:var(--blue);white-space:nowrap}
.more:hover{text-decoration:underline;text-underline-offset:3px}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--bg);padding:60px 0 76px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:url(/assets/images/c980b8500af236ee.jpg) center/cover no-repeat;opacity:.09}
.hero .container{position:relative}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:13px;color:var(--muted);margin-bottom:20px}
.hero-tag i{width:7px;height:7px;border-radius:50%;background:var(--green);display:block}
.hero h1{font-size:52px;line-height:1.15;letter-spacing:-.01em}
.hero h1 em{font-style:normal;color:var(--peach)}
.hero-sub{margin-top:16px;font-size:17px;font-weight:600;color:var(--ink)}
.hero-desc{margin-top:14px;max-width:520px;font-size:15px;color:var(--muted)}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-visual{background:var(--blue-l);border-radius:20px;padding:20px}
.hv-main{display:flex;gap:14px}
.shot-lg{position:relative;flex:1.35;border-radius:14px;overflow:hidden;background:#DCE8FF}
.shot-lg img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/4}
.hv-side{flex:1;display:flex;flex-direction:column;gap:14px}
.shot-sm{position:relative;flex:1;border-radius:12px;overflow:hidden;background:#DCE8FF;min-height:96px}
.shot-sm img{width:100%;height:100%;object-fit:cover}
.shot-strip{position:relative;margin-top:14px;border-radius:12px;overflow:hidden;background:#DCE8FF}
.shot-strip img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/7}
.shot-strip span{position:absolute;left:14px;bottom:12px;background:rgba(255,255,255,.94);color:var(--ink);font-size:13px;font-weight:600;padding:5px 12px;border-radius:8px}

/* ---------- badges & score ---------- */
.badge{position:absolute;top:10px;left:10px;font-size:12px;line-height:1;font-weight:600;padding:6px 9px;border-radius:6px;z-index:2}
.badge-hd{background:#E8F1FF;color:#2E6BE6}
.badge-bd{background:#2E6BE6;color:#fff}
.badge-up{background:#FFF0E8;color:#E8683A}
.score{position:absolute;right:10px;bottom:10px;background:rgba(255,255,255,.95);color:var(--green-d);font-size:13px;font-weight:700;padding:3px 8px;border-radius:7px;font-variant-numeric:tabular-nums;z-index:2}

/* ---------- metrics ---------- */
.metrics{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden}
.metric{padding:28px 24px;border-left:1px solid var(--line)}
.metric:first-child{border-left:0}
.m-label{font-size:13px;color:var(--muted)}
.m-num{display:block;margin:10px 0 8px;font-size:34px;line-height:1.15;font-weight:700;font-variant-numeric:tabular-nums}
.m-num small{font-size:14px;font-weight:500;color:var(--muted);margin-left:3px}
.metric p{font-size:13px;color:var(--muted)}

/* ---------- services ---------- */
.svc-panel{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:6px 28px;display:grid;grid-template-columns:1fr 1fr;column-gap:44px}
.svc{display:flex;gap:16px;align-items:flex-start;padding:22px 0;border-bottom:1px solid var(--line)}
.svc:nth-last-child(-n+2){border-bottom:0}
.svc-icon{flex:0 0 44px;width:44px;height:44px;border-radius:12px;background:var(--blue-l);display:grid;place-items:center;color:var(--blue)}
.svc h3{font-size:16px;font-weight:600;margin-bottom:4px}
.svc p{font-size:14px;color:var(--muted)}

/* ---------- cards ---------- */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-h);border-color:#CBDCFA}
.card-poster{position:relative;aspect-ratio:3/4;overflow:hidden;background:var(--blue-l)}
.card-poster img{width:100%;height:100%;object-fit:cover}
.card-body{padding:12px 14px 16px}
.card-title{font-size:15px;font-weight:600;line-height:1.4;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted)}

/* ---------- hot ---------- */
.hot-top{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;margin-bottom:24px}
.hot-hero{grid-column:span 6}
.hot-sm2{grid-column:span 3}
.hot-main .card-poster{aspect-ratio:16/9}
.hot-desc{font-size:14px;color:var(--muted);margin-bottom:10px}
.hot-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.hot-row .card-poster{aspect-ratio:4/3}

/* ---------- categories ---------- */
.cats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.cat{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 22px;box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.cat:hover{transform:translateY(-4px);box-shadow:var(--shadow-h);border-color:#CBDCFA}
.cat-icon{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:var(--blue-l);color:var(--blue);margin-bottom:16px}
.cat-icon.p{background:#FFF0E8;color:#E8683A}
.cat-icon.g{background:#E7F8F1;color:var(--green-d)}
.cat-icon.y{background:#FFF8E1;color:#B98A00}
.cat h3{font-size:18px;margin-bottom:8px}
.cat p{font-size:14px;color:var(--muted);margin-bottom:16px}
.cat-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px}
.cat-foot b{color:var(--blue);font-size:15px}

/* ---------- rank ---------- */
.rank-wrap{display:grid;grid-template-columns:1fr 1fr;gap:0 48px}
.rank-item{display:flex;align-items:center;gap:14px;padding:14px 14px;border-bottom:1px solid var(--line);border-radius:10px;transition:background .18s ease}
.rank-item:hover{background:#F7F9FD}
.rank-no{flex:0 0 32px;font-size:16px;font-weight:700;color:#9AA9C0;font-variant-numeric:tabular-nums}
.rank-item.top .rank-no{color:var(--peach)}
.rank-name{flex:1;min-width:0;font-size:15px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rank-heat{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.rank-score{font-size:14px;font-weight:700;color:var(--green-d);font-variant-numeric:tabular-nums}
.rank-cat{font-size:12px;color:var(--muted);background:#F0F4FB;border-radius:6px;padding:2px 8px;white-space:nowrap}

/* ---------- compare ---------- */
.cmp-wrap{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}
.cmp{width:100%;border-collapse:collapse}
.cmp th,.cmp td{padding:16px 22px;text-align:left;font-size:14px;border-bottom:1px solid var(--line)}
.cmp thead th{background:var(--blue-l);font-size:14px;font-weight:600;color:var(--ink)}
.cmp tbody tr:last-child th,.cmp tbody tr:last-child td{border-bottom:0}
.cmp th[scope="row"]{font-weight:600;width:24%}
.ok{color:var(--green-d);font-weight:600}
.ok::before{content:"✓ ";font-weight:700}
.dash{color:#9AA9C0}

/* ---------- timeline ---------- */
.timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.timeline::before{content:"";position:absolute;top:7px;left:0;right:0;height:1px;background:#D8E3F5}
.ms{position:relative;padding-top:44px}
.ms::before{content:"";position:absolute;top:1px;left:0;width:13px;height:13px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 5px var(--blue-l)}
.ms-no{display:block;font-size:13px;color:#9AA9C0;font-variant-numeric:tabular-nums;letter-spacing:.08em;margin-bottom:6px}
.ms h3{font-size:18px;margin-bottom:8px}
.ms p{font-size:14px;color:var(--muted)}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 48px}
.news-item{display:flex;align-items:center;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}
.news-thumb{flex:0 0 120px;width:120px;aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:var(--blue-l)}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-title{font-size:15px;font-weight:600;line-height:1.5;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .18s ease}
.news-item:hover .news-title{color:var(--blue)}
.news-date{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}

/* ---------- guarantee ---------- */
.guarantees{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.g-item{border-left:3px solid var(--blue);padding-left:16px}
.g-item:nth-child(2),.g-item:nth-child(4){border-left-color:var(--green)}
.g-item h3{font-size:16px;margin-bottom:6px}
.g-item p{font-size:14px;color:var(--muted)}

/* ---------- quick ---------- */
.quick-bar{display:flex;gap:10px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px;max-width:740px;margin:0 auto 22px}
.quick-bar input{flex:1;min-width:0;height:44px;border:0;background:transparent;padding:0 12px;font-size:15px;outline:none;border-radius:8px}
.quick-bar input:focus-visible{box-shadow:0 0 0 3px rgba(46,107,230,.18)}
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:30px}
.chip{display:inline-flex;align-items:center;min-height:38px;padding:7px 16px;border-radius:999px;background:var(--blue-l);color:var(--blue);font-size:14px;transition:background .18s ease}
.chip:hover{background:#DCE8FF}
.quick-links{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.qlink{display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:14px;font-weight:600;color:var(--ink);transition:border-color .18s ease,color .18s ease,background .18s ease}
.qlink:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-l)}

/* ---------- faq ---------- */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease}
.faq-item.open{border-left:3px solid var(--blue);box-shadow:var(--shadow)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;min-height:58px;padding:16px 20px;background:none;border:0;text-align:left;font-size:15px;font-weight:600;cursor:pointer}
.faq-q .arw{flex:0 0 auto;color:var(--muted);transition:transform .2s ease,color .2s ease}
.faq-item.open .faq-q .arw{transform:rotate(180deg);color:var(--blue)}
.faq-a{display:none;padding:0 20px 20px;font-size:14px;color:var(--muted)}
.faq-item.open .faq-a{display:block}

/* ---------- subscribe ---------- */
.sub-grid{display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:start}
.sub-grid h2{font-size:30px;line-height:1.3;margin-bottom:14px}
.sub-lead{font-size:15px;color:var(--muted);margin-bottom:22px}
.sub-points{list-style:none;margin:0;padding:0}
.sub-points li{position:relative;padding-left:26px;margin-bottom:12px;font-size:14px;color:var(--muted)}
.sub-points li::before{content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:50%;background:var(--green)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:28px}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.form-control{width:100%;height:44px;border:1px solid var(--line);border-radius:10px;padding:0 14px;font-size:15px;background:#fff;color:var(--ink)}
.form-control:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(46,107,230,.18)}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted);margin:4px 0 18px;min-height:44px}
.agree input{width:18px;height:18px;margin:3px 0 0;accent-color:var(--blue);flex:0 0 auto}
.form-btn{width:100%}
.form-note{margin-top:14px;font-size:12px;color:#8B99AE}

/* ---------- footer ---------- */
.site-footer{background:#F4F7FC;border-top:1px solid var(--line);padding:60px 0 0;scroll-margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.f-brand .brand{margin-bottom:14px}
.f-brand p{font-size:14px;color:var(--muted);margin-bottom:18px;max-width:280px}
.f-col h3{font-size:15px;margin-bottom:14px}
.f-col ul{list-style:none;margin:0;padding:0}
.f-col li{margin-bottom:10px}
.f-col a,.f-col span{font-size:14px;color:var(--muted)}
.f-col a:hover{color:var(--blue)}
.f-bottom{border-top:1px solid var(--line);padding:18px 0;font-size:13px;color:#8B99AE;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  section{padding:64px 0}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:42px}
  .hero-visual{max-width:560px}
  .sec-head h2{font-size:26px}
  .cards{grid-template-columns:repeat(3,1fr)}
  .hot-top{grid-template-columns:repeat(12,1fr)}
  .hot-hero{grid-column:span 12}
  .hot-sm2{grid-column:span 6}
  .hot-row{grid-template-columns:repeat(2,1fr)}
  .cats{grid-template-columns:repeat(2,1fr)}
  .guarantees{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:repeat(2,1fr);gap:32px 24px}
  .timeline::before{display:none}
  .ms{padding-top:32px}
  .sub-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav-menu{position:absolute;top:100%;left:-20px;right:-20px;display:none;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 14px 28px rgba(22,35,58,.10);padding:8px 20px 18px;margin-left:0}
  .nav-menu.open{display:flex}
  .nav-menu a{padding:14px 0;border-bottom:1px solid var(--line);font-size:15px}
  .nav-menu a:hover{border-bottom-color:var(--line)}
  .burger{display:flex}
}
@media (max-width:768px){
  section{padding:52px 0;scroll-margin-top:72px}
  .nav{height:64px}
  .hero{padding:44px 0 56px}
  .hero h1{font-size:36px}
  .hero-sub{font-size:16px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:8px;margin-bottom:24px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .metric{padding:22px 18px}
  .metric:nth-child(3){border-left:0}
  .metric:nth-child(n+3){border-top:1px solid var(--line)}
  .m-num{font-size:28px}
  .svc-panel{grid-template-columns:1fr;padding:4px 22px}
  .svc:nth-child(5){border-bottom:1px solid var(--line)}
  .cards{grid-template-columns:repeat(3,1fr);gap:18px}
  .hot-row{grid-template-columns:repeat(2,1fr);gap:18px}
  .rank-wrap{grid-template-columns:1fr;gap:0}
  .news-grid{grid-template-columns:1fr;gap:0}
  .cmp thead{display:none}
  .cmp,.cmp tbody,.cmp tr,.cmp th,.cmp td{display:block;width:100%}
  .cmp tr{border-bottom:1px solid var(--line);padding:6px 0}
  .cmp tr:last-child{border-bottom:0}
  .cmp th,.cmp td{border:0;padding:6px 18px}
  .cmp th[scope="row"]{padding-top:14px;font-size:15px}
  .cmp td{display:flex;justify-content:space-between;gap:16px;font-size:14px}
  .cmp td::before{content:attr(data-label);color:var(--muted);font-size:13px}
  .timeline{grid-template-columns:1fr;gap:0;padding-left:22px}
  .timeline::before{display:block;top:6px;bottom:10px;left:5px;right:auto;width:1px;height:auto}
  .ms{padding:0 0 28px 10px}
  .ms::before{left:-22px;top:6px}
  .form-card{padding:22px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero h1{font-size:32px}
  .hero-btns .btn{flex:1 1 100%}
  .cards{grid-template-columns:repeat(2,1fr);gap:14px}
  .hot-sm2{grid-column:span 12}
  .hot-row{grid-template-columns:1fr}
  .cats{grid-template-columns:1fr}
  .guarantees{grid-template-columns:1fr}
  .quick-bar{flex-direction:column;padding:12px}
  .quick-bar .btn{width:100%}
  .news-thumb{flex:0 0 96px;width:96px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .f-bottom{flex-direction:column}
  .nav-actions .btn-sm{display:none}
}