/* roulang page: index */
:root{
  --brand:#F2643B;
  --brand-2:#E8405F;
  --mint:#19B89A;
  --sun:#FFC94D;
  --ink:#191817;
  --ink2:#5B5450;
  --ink3:#8B8079;
  --bg:#FFF7F0;
  --card:#FFFFFF;
  --line:#F0E4DA;
  --soft:#FBEADD;
  --grad:linear-gradient(120deg,#F2643B,#E8405F);
  --r-lg:26px;
  --r-md:18px;
  --r-sm:14px;
  --sh:0 18px 50px rgba(25,24,23,.08);
  --sh-h:0 26px 64px rgba(25,24,23,.14);
  --max:1200px;
}
*{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","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;font-size:16px;line-height:1.7;font-variant-numeric:tabular-nums;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
:focus-visible{outline:3px solid rgba(242,100,59,.35);outline-offset:2px}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}
.btn-brand{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border:0;border-radius:999px;background:var(--grad);background-size:200% 100%;background-position:0 0;color:#fff;font-size:16px;font-weight:700;box-shadow:0 14px 30px rgba(242,100,59,.3);transition:background-position .35s,box-shadow .3s,transform .2s}
.btn-brand:hover{background-position:100% 0;box-shadow:0 18px 40px rgba(232,64,95,.36)}
.btn-brand:active{transform:translateY(1px)}
.btn-brand.full{width:100%}
.card-soft{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:26px;transition:transform .25s,box-shadow .25s,border-color .25s}
.card-soft:hover{transform:translateY(-4px);box-shadow:var(--sh);border-color:#F6C9B2}
.kicker{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:#FFEDE3;color:#C9441F;font-size:13px;font-weight:700}
.tag{display:inline-block;padding:4px 10px;border-radius:999px;background:#FFEFE6;color:#C9441F;font-size:12px;font-weight:700}
.badge-data{display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:999px;background:linear-gradient(120deg,#FFF0E6,#FFEAF0);border:1px solid #F8C9B2;font-size:13px;font-weight:600;color:#8A3A21}
.badge-data b{font-size:15px;color:#C9441F}
.sec{padding:96px 0}
.sec.alt{background:#fff}
.sec-head{max-width:740px;margin-bottom:44px}
.sec-head h2{font-size:32px;margin-top:14px}
.sec-head p{margin-top:14px;color:var(--ink2);font-size:16px}
.bar{height:10px;border-radius:999px;background:#F7E8DD;overflow:hidden}
.bar i{display:block;height:100%;border-radius:999px;background:var(--grad)}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,247,240,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{max-width:var(--max);margin:0 auto;padding:0 24px;height:72px;display:flex;align-items:center;gap:32px;position:relative}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800}
.logo-mark{width:34px;height:34px;border-radius:50%;background:var(--grad);display:grid;place-items:center;box-shadow:0 10px 22px rgba(242,100,59,.3)}
.logo-mark::after{content:"";width:0;height:0;border-left:9px solid #fff;border-top:6px solid transparent;border-bottom:6px solid transparent;margin-left:3px}
.nav-links{display:flex;gap:26px;margin-left:auto;font-size:15px;font-weight:600;color:var(--ink2)}
.nav-links a{position:relative;padding:4px 0;transition:color .2s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:3px;border-radius:3px;background:var(--grad);transition:width .25s}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-cta{padding:11px 22px;font-size:15px}
.menu-btn{display:none;position:relative;width:44px;height:44px;border:1px solid var(--line);border-radius:13px;background:#fff}
.menu-btn i,.menu-btn i::before,.menu-btn i::after{content:"";position:absolute;left:50%;width:18px;height:2px;border-radius:2px;background:var(--ink);transform:translateX(-50%)}
.menu-btn i{top:50%;margin-top:-1px}
.menu-btn i::before{top:-6px}
.menu-btn i::after{top:6px}

/* hero */
.hero{position:relative;padding:72px 0 96px;overflow:hidden}
.hero::before{content:"";position:absolute;left:0;right:0;top:0;height:84%;background:linear-gradient(120deg,#FFEFE4,#FFE7DD 55%,#FFEEDD);clip-path:polygon(0 0,100% 0,100% 80%,0 100%)}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero-copy .kicker{margin-bottom:20px}
.hero h1{font-size:56px;line-height:1.12;margin-bottom:22px}
.hero-lead{max-width:580px;color:var(--ink2)}
.hero-act{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin:32px 0 26px}
.hero-note{padding:6px 12px;border-radius:999px;background:#FFE7DA;color:#B4552F;font-size:13px;font-weight:700}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px}
.hero-media{position:relative;aspect-ratio:16/9;border:6px solid #fff;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.play{position:absolute;left:50%;top:50%;width:66px;height:66px;border-radius:50%;background:rgba(255,255,255,.92);box-shadow:0 12px 30px rgba(0,0,0,.2);display:grid;place-items:center;transform:translate(-50%,-50%)}
.play::after{content:"";width:0;height:0;border-left:16px solid var(--brand);border-top:10px solid transparent;border-bottom:10px solid transparent;margin-left:4px}
.float-badge{position:absolute;left:14px;bottom:14px;padding:7px 14px;border-radius:999px;background:rgba(25,24,23,.72);color:#fff;font-size:12px;font-weight:600}

/* kpi */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.kpi{display:flex;flex-direction:column;gap:10px}
.kpi-label{font-size:13px;font-weight:700;color:var(--ink3)}
.kpi-num{font-size:44px;line-height:1.1;font-weight:800;letter-spacing:-.03em}
.trend{align-self:flex-start;padding:3px 10px;border-radius:999px;background:#E6F7F3;color:#0E8A73;font-size:12px;font-weight:700;font-style:normal}
.trend.down{background:#FFEDE6;color:#C9441F}

/* bento */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.bento-card{display:flex;flex-direction:column}
.bento-card.wide{grid-column:span 2;background:linear-gradient(120deg,#FFF3EA,#FFF9F4)}
.ico{display:grid;place-items:center;width:40px;height:40px;margin-bottom:16px;border-radius:12px;background:linear-gradient(120deg,#FFE7DA,#FFEFD9);color:#C9441F;font-size:15px;font-weight:800}
.bento-card h3{font-size:21px;margin:12px 0 8px}
.bento-card p{color:var(--ink2);font-size:15px}
.arrow{margin-top:auto;padding-top:18px;color:var(--brand);font-weight:800;transition:transform .25s}
.bento-card:hover .arrow{transform:translateX(4px)}

/* tiers */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.tier h3{font-size:20px;margin-bottom:6px}
.tier .price{font-size:14px;color:var(--brand);font-weight:700}
.tier ul{margin:18px 0 0;display:grid;gap:10px}
.tier li{position:relative;padding-left:20px;font-size:14px;color:var(--ink2)}
.tier li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:var(--grad)}
.tier.mid{border-color:#F7BCA4;box-shadow:var(--sh);background:linear-gradient(160deg,#FFF6F0,#fff)}

/* compare table */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-md);background:#fff}
table.cmp{width:100%;border-collapse:collapse;min-width:640px;font-size:15px}
table.cmp th,table.cmp td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line)}
table.cmp thead th{background:#FFF8F3;font-size:14px;color:var(--ink2);font-weight:700}
table.cmp tbody tr:last-child td{border-bottom:0}
table.cmp .reco{background:linear-gradient(180deg,#FFF0E6,#FFF7F1);color:#C9441F;font-weight:800}
table.cmp td.reco{font-weight:700;color:#B4552F}

/* topics */
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.topic{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:transform .25s,box-shadow .25s}
.topic:hover{transform:translateY(-4px);box-shadow:var(--sh)}
.topic-thumb{aspect-ratio:4/3;overflow:hidden;background:var(--soft)}
.topic-thumb img{width:100%;height:100%;object-fit:cover}
.topic-body{padding:18px 20px 22px}
.topic-body h3{font-size:17px;margin:10px 0 8px}
.count{font-size:13px;color:var(--ink3);font-weight:600}
.more-link{display:inline-flex;align-items:center;gap:6px;margin-top:28px;color:var(--brand);font-weight:800;transition:gap .2s}
.more-link:hover{gap:12px}

/* hot list */
.hot-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.hot-list li{display:flex;gap:18px;padding:22px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);transition:transform .25s,border-color .25s}
.hot-list li:hover{transform:translateY(-3px);border-color:#F6C9B2}
.hot-list .num{font-size:26px;font-weight:800;line-height:1;color:#F0C4AC;letter-spacing:-.03em}
.hot-list h3{font-size:17px;margin-bottom:6px}
.hot-list p{font-size:14px;color:var(--ink2)}

/* compare cards */
.compare{display:grid;grid-template-columns:1fr 56px 1fr;gap:20px;align-items:center}
.cmp-card{border-radius:var(--r-md);padding:28px;border:1px solid var(--line)}
.cmp-card.left{background:#F7F2ED}
.cmp-card.right{background:linear-gradient(160deg,#FFF0E6,#FFF8F2);border-color:#F7C4AA}
.cmp-card h3{font-size:20px;margin-bottom:18px}
.cmp-row{margin-bottom:16px}
.cmp-row span{display:flex;justify-content:space-between;font-size:13px;font-weight:700;color:var(--ink2);margin-bottom:6px}
.cmp-arrow{width:56px;height:56px;border-radius:50%;background:var(--grad);color:#fff;display:grid;place-items:center;font-size:22px;font-weight:800;box-shadow:0 14px 30px rgba(232,64,95,.3)}
.cmp-note{margin-top:28px;font-size:13px;color:var(--ink3)}

/* timeline */
.timeline{display:flex;gap:10px;overflow-x:auto;padding:6px 0 16px;scroll-snap-type:x mandatory}
.tl{flex:1 0 200px;scroll-snap-align:start;position:relative;padding-top:48px}
.tl::before{content:"";position:absolute;left:0;right:0;top:13px;height:2px;background:#F3DDCD}
.tl:first-child::before{left:14px}
.tl:last-child::before{right:14px}
.tl .dot{position:absolute;left:0;top:0;width:28px;height:28px;border-radius:50%;background:var(--grad);box-shadow:0 0 0 6px #FFEFE4}
.tl .stage{display:inline-block;margin-bottom:10px;padding:3px 10px;border-radius:999px;background:#FFEFE6;color:#C9441F;font-size:12px;font-weight:700}
.tl h3{font-size:17px;margin-bottom:6px}
.tl p{font-size:14px;color:var(--ink2)}

/* flow */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.flow-item{position:relative;padding:26px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md)}
.flow-item:not(:last-child)::after{content:"→";position:absolute;right:-17px;top:50%;transform:translateY(-50%);color:#E8B79E;font-size:18px;font-weight:800;z-index:1}
.flow-num{font-size:38px;font-weight:800;line-height:1;letter-spacing:-.04em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.flow-item h3{font-size:18px;margin:14px 0 8px}
.flow-item p{font-size:14px;color:var(--ink2)}

/* config */
.config{display:grid;grid-template-columns:280px 1fr;gap:40px;align-items:start}
.config-steps{display:grid;gap:14px}
.config-steps li{display:flex;align-items:center;gap:14px;padding:14px 18px;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);font-size:15px;font-weight:600}
.config-steps .dot{width:10px;height:10px;border-radius:50%;background:var(--grad);flex:none}
.config-cols{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.config-cols h3{font-size:18px;margin-bottom:10px}
.config-cols p{font-size:15px;color:var(--ink2)}
.chip-wall{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.chip{padding:7px 14px;border-radius:999px;background:#FFF3EA;border:1px solid #F8D5C1;color:#A8482A;font-size:13px;font-weight:600}

/* team */
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.avatar{display:grid;place-items:center;width:64px;height:64px;border-radius:50%;background:var(--grad);color:#fff;font-size:22px;font-weight:800;margin-bottom:16px}
.team-grid h3{font-size:19px;margin-bottom:8px}
.team-grid p{font-size:14px;color:var(--ink2);margin-bottom:16px}

/* quotes */
.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.quote{position:relative;padding:30px 28px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md)}
.quote::before{content:"“";position:absolute;left:22px;top:6px;font-size:44px;line-height:1;color:#F5D2BE}
.quote p{position:relative;font-size:15px;color:var(--ink2);padding-top:14px}
.quote footer{display:flex;align-items:center;gap:12px;margin-top:18px;font-size:13px;color:var(--ink3);font-weight:600}
.quote footer b{color:var(--ink);font-size:14px}
.rate{margin-left:auto;padding:3px 10px;border-radius:999px;background:#FFF3D6;color:#8A6410;font-size:12px;font-weight:700}

/* news */
.news-wrap{display:grid;grid-template-columns:1.9fr 1fr;gap:40px;align-items:start}
.news-item{display:flex;gap:22px;padding:22px 0;border-bottom:1px solid var(--line)}
.news-item:first-child{padding-top:0}
.news-thumb{flex:none;width:190px;aspect-ratio:16/10;border-radius:var(--r-sm);overflow:hidden;background:var(--soft)}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body h3{font-size:18px;margin:8px 0 8px}
.news-body .meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--ink3)}
.news-side{display:grid;gap:22px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px}
.side-card h3{font-size:16px;margin-bottom:14px}
.side-card li{font-size:14px;color:var(--ink2);padding:8px 0;border-bottom:1px dashed var(--line)}
.side-card li:last-child{border-bottom:0}
.side-tags{display:flex;flex-wrap:wrap;gap:8px}

/* guard */
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.guard{display:flex;gap:16px;align-items:flex-start;padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm)}
.guard svg{flex:none;color:var(--brand)}
.guard h3{font-size:16px;margin-bottom:6px}
.guard p{font-size:13px;color:var(--ink2)}

/* quick */
.quick{display:flex;flex-wrap:wrap;gap:12px}
.quick a{padding:12px 22px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:15px;font-weight:600;color:var(--ink2);transition:color .2s,border-color .2s,box-shadow .2s,transform .2s;min-height:44px;display:inline-flex;align-items:center}
.quick a:hover{color:var(--brand);border-color:#F7BCA4;box-shadow:0 10px 24px rgba(242,100,59,.14);transform:translateY(-2px)}

/* faq */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 0;font-size:17px;font-weight:700;list-style:none;cursor:pointer;transition:color .2s}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;font-weight:700;color:var(--brand);transition:transform .25s}
.faq details[open] summary{color:var(--brand)}
.faq details[open] summary::after{content:"−"}
.faq p{padding:0 0 24px;font-size:15px;line-height:1.8;color:var(--ink2);max-width:880px}

/* form */
.form-wrap{display:grid;grid-template-columns:1fr 1.15fr;background:var(--grad);border-radius:var(--r-lg);padding:12px;box-shadow:0 30px 70px rgba(232,64,95,.22)}
.form-aside{color:#fff;padding:36px 32px}
.form-aside h2{font-size:30px;margin-bottom:16px;color:#fff}
.form-aside p{font-size:15px;opacity:.92}
.form-aside ul{margin-top:26px;display:grid;gap:12px}
.form-aside li{display:flex;gap:10px;font-size:14px;opacity:.95}
.form-aside li::before{content:"";flex:none;width:8px;height:8px;margin-top:8px;border-radius:50%;background:#FFD9C6}
.form-card{background:#fff;border-radius:20px;padding:32px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;margin-bottom:6px;font-size:13px;font-weight:700;color:var(--ink2)}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:14px;background:#FFFDFB;font:inherit;font-size:15px;color:var(--ink);transition:border-color .2s,box-shadow .2s}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--brand);box-shadow:0 0 0 3px rgba(242,100,59,.16)}
.form-tip{margin-top:14px;font-size:12px;color:var(--ink3)}

/* footer */
.site-footer{background:#191817;color:#CFC6BF;padding:64px 0 32px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.foot-brand .logo{color:#fff;margin-bottom:16px}
.foot-brand p{font-size:14px;line-height:1.8;max-width:300px}
.foot-col h4{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:0}
.foot-col li{padding:6px 0;font-size:14px}
.foot-col a:hover{color:#FFC94D}
.foot-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13px;color:#9A918B}

@media(max-width:1024px){
  .nav-links{position:absolute;top:72px;left:0;right:0;margin:0;padding:6px 24px 14px;display:none;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 20px 40px rgba(25,24,23,.08)}
  .nav-links.open{display:flex}
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--line);font-size:16px}
  .nav-links a::after{display:none}
  .nav-cta{margin-left:auto;padding:10px 18px;font-size:14px}
  .menu-btn{display:block}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:42px}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento-card.wide{grid-column:span 2}
  .topic-grid{grid-template-columns:repeat(2,1fr)}
  .config{grid-template-columns:1fr;gap:28px}
  .news-wrap{grid-template-columns:1fr;gap:28px}
  .form-wrap{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .flow{grid-template-columns:repeat(2,1fr)}
  .flow-item:not(:last-child)::after{display:none}
  .guard-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  html{scroll-padding-top:80px}
  .sec{padding:56px 0}
  .sec-head h2{font-size:26px}
  .hero{padding:48px 0 64px}
  .hero h1{font-size:36px}
  .hero-lead{font-size:15px}
  .hero-media{border-width:4px}
  .tiers{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr}
  .quote-grid{grid-template-columns:1fr}
  .hot-list{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr;gap:16px}
  .cmp-arrow{justify-self:center;transform:rotate(90deg)}
  .flow{grid-template-columns:1fr}
  .config-cols{grid-template-columns:1fr}
  .form-aside{padding:26px 20px}
  .form-aside h2{font-size:24px}
  .form-card{padding:22px}
  .form-row{grid-template-columns:1fr}
  .news-thumb{width:130px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media(max-width:520px){
  .container{padding:0 18px}
  .nav{padding:0 18px;gap:14px}
  .nav-cta{display:none}
  .logo{font-size:16px}
  .hero h1{font-size:34px}
  .kpi-grid,.topic-grid,.bento,.guard-grid{grid-template-columns:1fr}
  .bento-card.wide{grid-column:span 1}
  .kpi-num{font-size:38px}
  .hot-list li{padding:18px}
  .news-item{flex-direction:column;gap:14px}
  .news-thumb{width:100%}
  .foot-grid{grid-template-columns:1fr}
  .form-wrap{padding:8px}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}