/* roulang page: index */
:root{
  --brand:#1d4ed8;
  --brand-dark:#153fa8;
  --brand-soft:#eaf1ff;
  --brand-line:#cbdcff;
  --accent:#0f9d8f;
  --ink:#0d1b2e;
  --ink-2:#3f5372;
  --muted:#7286a2;
  --bg:#f5f8fd;
  --surface:#ffffff;
  --line:#e3eaf5;
  --radius-xs:8px;
  --radius-sm:12px;
  --radius:18px;
  --radius-lg:26px;
  --shadow-xs:0 1px 2px rgba(13,27,46,.05);
  --shadow-sm:0 4px 16px rgba(13,27,46,.06);
  --shadow:0 14px 38px rgba(13,27,46,.09);
  --shadow-lg:0 28px 70px rgba(13,27,46,.14);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.72;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,ul,ol,figure,fieldset{margin:0;padding:0}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,opacity .2s ease}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(29,78,216,.35);outline-offset:2px;border-radius:8px}
.shell{width:min(1180px,100% - 40px);margin-inline:auto}
.section{padding:76px 0}
.section-tight{padding:44px 0}
.section-alt{background:var(--surface)}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{
  display:inline-block;
  font-size:.8rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--brand);
  background:var(--brand-soft);
  border:1px solid var(--brand-line);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:16px;
}
.section-head h2{
  font-size:clamp(1.45rem,2.5vw,2rem);
  line-height:1.34;
  font-weight:800;
  letter-spacing:-.01em;
}
.section-head p{
  margin-top:14px;
  color:var(--ink-2);
  font-size:1rem;
}
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}

/* header */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:16px;height:74px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.01em}
.logo-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(140deg,#2f6bff,#153fa8);
  color:#fff;display:grid;place-items:center;
  font-size:.95rem;font-weight:800;
  box-shadow:0 8px 18px rgba(29,78,216,.28);
}
.logo-text{font-size:1.08rem;color:var(--ink)}
.nav-menu{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav-menu a{
  padding:9px 15px;
  border-radius:999px;
  font-size:.94rem;
  color:var(--ink-2);
  font-weight:500;
  white-space:nowrap;
}
.nav-menu a:hover{background:var(--brand-soft);color:var(--brand)}
.nav-menu a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:700}
.nav-cta{flex:none}
.nav-cta-mobile{display:none}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  margin-left:auto;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:13px;
  font-size:.95rem;
  font-weight:700;
  line-height:1.2;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease;
}
.btn-brand{
  background:linear-gradient(140deg,#2f6bff,#153fa8);
  color:#fff;
  box-shadow:0 12px 26px rgba(29,78,216,.28);
}
.btn-brand:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(29,78,216,.34)}
.btn-brand:active{transform:translateY(0);box-shadow:0 8px 18px rgba(29,78,216,.26)}
.btn-brand:disabled{opacity:.7;cursor:default;transform:none;box-shadow:none}
.btn-ghost{
  background:#fff;
  border-color:var(--line);
  color:var(--ink-2);
  box-shadow:var(--shadow-xs);
}
.btn-ghost:hover{border-color:var(--brand-line);color:var(--brand);transform:translateY(-2px)}
.btn-wide{width:100%}
.btn-sm{padding:9px 18px;font-size:.88rem;border-radius:11px}

/* hero */
.hero{
  position:relative;
  overflow:hidden;
  padding:60px 0 68px;
  background:
    radial-gradient(720px 320px at 88% -12%,rgba(47,107,255,.16),transparent 68%),
    radial-gradient(560px 300px at 4% 0%,rgba(15,157,143,.12),transparent 70%),
    linear-gradient(180deg,#f0f5ff 0%,#f5f8fd 100%);
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:center}
.hero-copy h1{
  font-size:clamp(1.6rem,3.1vw,2.42rem);
  line-height:1.3;
  font-weight:800;
  letter-spacing:-.015em;
  margin-top:16px;
}
.hero-sub{
  margin-top:16px;
  font-size:1.06rem;
  font-weight:700;
  color:var(--brand-dark);
}
.hero-desc{margin-top:16px;color:var(--ink-2);max-width:620px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-points li{
  display:inline-flex;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:7px 15px;font-size:.87rem;color:var(--ink-2);font-weight:600;
  box-shadow:var(--shadow-xs);
}
.hero-points li i{color:var(--accent);font-size:.8rem}
.apply-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px;
  box-shadow:var(--shadow-lg);
}
.apply-card h2{font-size:1.2rem;font-weight:800}
.apply-note{margin-top:8px;font-size:.88rem;color:var(--muted)}
.benefit-list{margin-top:18px;display:grid;gap:10px}
.benefit-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:.9rem;color:var(--ink-2);
  background:#f7faff;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:11px 14px;
}
.benefit-list li i{color:var(--brand);margin-top:4px;font-size:.78rem}
.apply-form{margin-top:20px;display:grid;gap:12px}
.field{display:grid;gap:7px}
.field label{font-size:.83rem;font-weight:700;color:var(--ink-2)}
.field input,.field textarea{
  width:100%;
  border:1px solid var(--line);
  background:#fbfdff;
  border-radius:var(--radius-sm);
  padding:12px 14px;
  font-size:.93rem;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:#9aabc4}
.field input:hover,.field textarea:hover{border-color:var(--brand-line)}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  background:#fff;
  box-shadow:0 0 0 4px rgba(29,78,216,.12);
}
.field input.is-error,.field textarea.is-error{border-color:#e2564b;box-shadow:0 0 0 4px rgba(226,86,75,.12)}
.apply-tip{margin-top:14px;font-size:.82rem;color:var(--muted)}

/* stat strip */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:12px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:26px 24px;
}
.stat{padding:4px 8px;text-align:left;border-left:2px solid var(--brand-soft)}
.stat:first-child{border-left-color:var(--brand)}
.stat strong{display:block;font-size:1.55rem;font-weight:800;color:var(--brand-dark);letter-spacing:-.02em}
.stat span{font-size:.86rem;color:var(--muted)}

/* cards */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:var(--shadow-xs);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--brand-line)}
.card h3{font-size:1.04rem;font-weight:800;margin-bottom:10px}
.card p{font-size:.92rem;color:var(--ink-2)}
.card-icon{
  width:42px;height:42px;border-radius:13px;
  display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);
  font-size:1rem;margin-bottom:16px;
}
.card-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;
  background:var(--brand);color:#fff;font-size:.82rem;font-weight:800;
  margin-bottom:14px;
}
.tag{
  display:inline-block;
  font-size:.76rem;font-weight:700;
  color:var(--brand-dark);
  background:var(--brand-soft);
  border:1px solid var(--brand-line);
  border-radius:999px;
  padding:4px 11px;
}
.tag-green{color:#0b6f65;background:#e6f7f4;border-color:#c6ece7}

/* two column feature */
.split{display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:start}
.split h2{font-size:clamp(1.4rem,2.3vw,1.9rem);font-weight:800;line-height:1.36;margin-bottom:16px}
.split p{color:var(--ink-2)}
.node-list{display:grid;gap:10px}
.node-item{
  display:grid;
  grid-template-columns:1fr auto auto;
  align-items:center;
  gap:14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:14px 18px;
  box-shadow:var(--shadow-xs);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.node-item:hover{transform:translateX(4px);border-color:var(--brand-line);box-shadow:var(--shadow-sm)}
.node-item b{font-size:.95rem}
.node-item small{font-size:.82rem;color:var(--muted)}
.node-lat{
  font-size:.84rem;font-weight:800;color:var(--accent);
  background:#e6f7f4;border:1px solid #c6ece7;border-radius:999px;padding:3px 11px;
}

/* panel dark */
.panel-dark{
  background:linear-gradient(135deg,#0d2340 0%,#123a6b 62%,#154a8a 100%);
  border-radius:var(--radius-lg);
  padding:46px;
  color:#fff;
  box-shadow:var(--shadow-lg);
}
.panel-dark h2{font-size:clamp(1.35rem,2.3vw,1.85rem);font-weight:800;line-height:1.36;color:#fff}
.panel-dark .lead{margin-top:14px;color:rgba(255,255,255,.76);max-width:760px}
.panel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:32px}
.panel-item{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-sm);
  padding:20px;
  transition:background-color .2s ease,transform .2s ease;
}
.panel-item:hover{background:rgba(255,255,255,.12);transform:translateY(-3px)}
.panel-item h3{font-size:.98rem;font-weight:800;margin-bottom:8px;color:#fff}
.panel-item p{font-size:.88rem;color:rgba(255,255,255,.72)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step}
.step{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px 24px;
  box-shadow:var(--shadow-xs);
}
.step::after{
  content:"";
  position:absolute;
  top:46px;right:-14px;
  width:28px;height:2px;
  background:linear-gradient(90deg,var(--brand-line),transparent);
}
.step:last-child::after{display:none}
.step-no{
  display:grid;place-items:center;
  width:44px;height:44px;border-radius:14px;
  background:linear-gradient(140deg,#2f6bff,#153fa8);
  color:#fff;font-weight:800;font-size:1rem;
  box-shadow:0 10px 22px rgba(29,78,216,.24);
  margin-bottom:18px;
}
.step h3{font-size:1.03rem;font-weight:800;margin-bottom:10px}
.step p{font-size:.9rem;color:var(--ink-2)}

/* metrics with meter */
.metric{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow-xs);
}
.metric strong{display:block;font-size:1.7rem;font-weight:800;color:var(--brand-dark);letter-spacing:-.02em}
.metric span{display:block;font-size:.87rem;color:var(--muted);margin-top:4px}
.meter{height:6px;border-radius:999px;background:#eaf0fa;margin-top:16px;overflow:hidden}
.meter i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#2f6bff,#7aa8ff)}

/* case */
.case{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-xs);
  transition:transform .22s ease,box-shadow .22s ease;
  height:100%;
}
.case:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.case-top{
  height:104px;
  background:linear-gradient(135deg,#e8f0ff,#d3e3ff 55%,#e6f7f4);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 24px;
}
.case-top b{font-size:1rem;font-weight:800;color:var(--brand-dark)}
.case-top i{font-size:1.5rem;color:rgba(29,78,216,.35)}
.case-body{padding:24px}
.case-body p{font-size:.91rem;color:var(--ink-2)}
.case-meta{margin-top:16px;display:flex;gap:8px;flex-wrap:wrap}

/* voices */
.voice{
  background:var(--surface);
  border:1px solid var(--line);
  border-left:3px solid var(--brand);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow-xs);
  height:100%;
}
.voice p{font-size:.93rem;color:var(--ink-2)}
.voice footer{margin-top:18px;display:flex;align-items:center;gap:12px}
.avatar{
  width:38px;height:38px;border-radius:50%;
  background:linear-gradient(140deg,#2f6bff,#153fa8);
  color:#fff;display:grid;place-items:center;
  font-size:.85rem;font-weight:800;flex:none;
}
.voice footer b{display:block;font-size:.9rem}
.voice footer span{font-size:.8rem;color:var(--muted)}

/* audience */
.audience{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:var(--shadow-xs);
  transition:border-color .2s ease,transform .2s ease;
  height:100%;
}
.audience:hover{border-color:var(--brand-line);transform:translateY(-3px)}
.audience-icon{
  width:44px;height:44px;flex:none;border-radius:13px;
  display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:1rem;
}
.audience h3{font-size:.98rem;font-weight:800;margin-bottom:6px}
.audience p{font-size:.88rem;color:var(--ink-2)}

/* channels */
.channel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:var(--shadow-xs);
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  height:100%;
}
.channel:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--brand-line)}
.channel h3{font-size:1.08rem;font-weight:800;margin-bottom:10px}
.channel p{font-size:.9rem;color:var(--ink-2);flex:1}
.channel-link{
  margin-top:20px;
  display:inline-flex;align-items:center;gap:8px;
  font-size:.9rem;font-weight:700;color:var(--brand);
}
.channel-link i{transition:transform .2s ease}
.channel-link:hover i{transform:translateX(4px)}

/* news list */
.news-list li{
  display:grid;
  grid-template-columns:1fr auto auto;
  align-items:center;
  gap:16px;
  padding:16px 0;
  border-bottom:1px dashed var(--line);
}
.news-list li:last-child{border-bottom:0}
.news-list b{font-size:.95rem;font-weight:700}
.news-list small{font-size:.8rem;color:var(--muted)}
.news-more{margin-top:22px}

/* calendar */
.cal{display:grid;gap:12px}
.cal-row{
  display:grid;
  grid-template-columns:96px 1fr auto;
  align-items:center;
  gap:18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:16px 20px;
  box-shadow:var(--shadow-xs);
}
.cal-row b{font-size:.9rem;color:var(--brand-dark)}
.cal-row span{font-size:.9rem;color:var(--ink-2)}
.cal-badge{
  font-size:.78rem;font-weight:700;color:var(--ink-2);
  background:#f2f6fd;border:1px solid var(--line);border-radius:999px;padding:4px 12px;
}

/* contact */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start}
.contact-info{display:grid;gap:14px;margin-top:26px}
.contact-info li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:.92rem;color:var(--ink-2);
}
.contact-info i{color:var(--brand);margin-top:5px;font-size:.85rem}
.contact-form{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:30px;
  box-shadow:var(--shadow);
  display:grid;gap:16px;
}

/* footer */
.site-footer{
  background:#0d2340;
  color:rgba(255,255,255,.72);
  padding:56px 0 30px;
  margin-top:20px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.08rem}
.footer-brand .logo-mark{box-shadow:none;background:linear-gradient(140deg,#2f6bff,#4f8cff)}
.footer-desc{margin-top:16px;font-size:.9rem;max-width:420px;color:rgba(255,255,255,.62)}
.footer-col h4{font-size:.92rem;color:#fff;font-weight:800;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:.88rem;color:rgba(255,255,255,.66)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:40px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.82rem;color:rgba(255,255,255,.5);
}

/* responsive */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .split{grid-template-columns:1fr;gap:30px}
  .g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .g3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .panel-grid{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr);gap:18px}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .step::after{display:none}
  .steps{grid-template-columns:1fr}
}
@media (max-width:992px){
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .nav-menu{
    position:absolute;
    top:74px;left:16px;right:16px;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    padding:14px;
    margin-left:0;
  }
  .nav-menu.is-open{display:flex}
  .nav-menu a{padding:12px 14px;border-radius:12px}
  .nav-cta-mobile{display:inline-flex;margin-top:6px}
}
@media (max-width:768px){
  .shell{width:min(1180px,100% - 32px)}
  .section{padding:58px 0}
  .hero{padding:44px 0 54px}
  .panel-dark{padding:32px 24px}
  .panel-grid{grid-template-columns:1fr}
  .apply-card{padding:22px}
  .footer-grid{grid-template-columns:1fr}
  .news-list li{grid-template-columns:1fr;gap:6px}
  .cal-row{grid-template-columns:1fr;gap:8px}
}
@media (max-width:520px){
  .g2,.g3,.g4{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr;padding:20px}
  .stat{border-left:0;border-top:2px solid var(--brand-soft);padding-top:12px}
  .stat:first-child{border-top-color:var(--brand)}
  .card,.channel,.voice,.case-body{padding:20px}
  .hero-copy h1{font-size:1.5rem}
  .logo-text{font-size:1rem}
  .btn{padding:12px 20px}
}

/* roulang page: category3 */
:root{
 --brand:#1d4ed8;
 --brand-dark:#153fa8;
 --brand-soft:#eaf1ff;
 --brand-line:#cbdcff;
 --accent:#0f9d8f;
 --ink:#0d1b2e;
 --ink-2:#3f5372;
 --muted:#7286a2;
 --bg:#f5f8fd;
 --surface:#ffffff;
 --line:#e3eaf5;
 --radius-xs:8px;
 --radius-sm:12px;
 --radius:18px;
 --radius-lg:26px;
 --shadow-xs:0 1px 2px rgba(13,27,46,.05);
 --shadow-sm:0 4px 16px rgba(13,27,46,.06);
 --shadow:0 14px 38px rgba(13,27,46,.09);
 --shadow-lg:0 28px 70px rgba(13,27,46,.14);
 --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:var(--font);
 font-size:16px;
 line-height:1.72;
 color:var(--ink);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.32;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,opacity .2s ease}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(47,107,255,.32);outline-offset:2px}
.shell{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
.section{padding:78px 0;scroll-margin-top:92px}
.section-tight{padding:48px 0;scroll-margin-top:92px}
.section-alt{background:var(--surface)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head h2{font-size:clamp(1.45rem,2.5vw,2rem);font-weight:800}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:1rem}
.eyebrow{
 display:inline-block;
 font-size:.8rem;
 font-weight:700;
 letter-spacing:.08em;
 color:var(--brand);
 background:var(--brand-soft);
 border:1px solid var(--brand-line);
 border-radius:999px;
 padding:5px 14px;
 margin-bottom:16px;
}
.eyebrow-light{color:#bcd2ff;background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.22)}
.lead{color:var(--ink-2)}
.anchor{display:block;position:relative;top:-96px;visibility:hidden;height:0}

/* ---------- header ---------- */
.site-header{
 position:sticky;
 top:0;
 z-index:80;
 background:rgba(255,255,255,.92);
 backdrop-filter:blur(14px);
 border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:16px;height:74px;position:relative}
.logo{display:flex;align-items:center;gap:10px;font-weight:800}
.logo-mark{
 width:36px;height:36px;border-radius:11px;
 background:linear-gradient(140deg,#2f6bff,#153fa8);
 color:#fff;display:grid;place-items:center;
 font-size:.95rem;font-weight:800;
 box-shadow:0 8px 18px rgba(29,78,216,.28);
}
.logo-text{font-size:1.08rem;color:var(--ink)}
.nav-menu{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav-menu a{
 padding:9px 15px;
 border-radius:999px;
 font-size:.94rem;
 color:var(--ink-2);
 font-weight:500;
 white-space:nowrap;
}
.nav-menu a:hover{background:var(--brand-soft);color:var(--brand)}
.nav-menu a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:700}
.nav-cta{flex:none}
.nav-toggle{
 display:none;
 width:44px;height:44px;
 border-radius:12px;
 border:1px solid var(--line);
 background:#fff;
 margin-left:auto;
 flex-direction:column;
 align-items:center;
 justify-content:center;
 gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{
 display:inline-flex;
 align-items:center;
 justify-content:center;
 gap:8px;
 padding:12px 24px;
 border-radius:13px;
 font-size:.95rem;
 font-weight:700;
 line-height:1.2;
 border:1px solid transparent;
 transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-brand{
 background:linear-gradient(140deg,#2f6bff,#153fa8);
 color:#fff;
 box-shadow:0 12px 26px rgba(29,78,216,.28);
}
.btn-brand:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(29,78,216,.34);color:#fff}
.btn-brand:active{transform:translateY(0);box-shadow:0 8px 18px rgba(29,78,216,.26)}
.btn-ghost{
 background:#fff;
 border-color:var(--line);
 color:var(--ink-2);
 box-shadow:var(--shadow-xs);
}
.btn-ghost:hover{border-color:var(--brand-line);color:var(--brand);transform:translateY(-2px)}
.btn-light{
 background:#fff;
 color:var(--brand-dark);
 box-shadow:0 14px 30px rgba(6,20,45,.24);
}
.btn-light:hover{transform:translateY(-2px);color:var(--brand);box-shadow:0 20px 38px rgba(6,20,45,.3)}
.btn-wide{width:100%}
.btn-sm{padding:9px 18px;font-size:.88rem;border-radius:11px}
.nav-cta-mobile{display:none}

/* ---------- page hero ---------- */
.page-hero{
 position:relative;
 overflow:hidden;
 padding:54px 0 60px;
 background:
  radial-gradient(700px 320px at 90% -14%,rgba(47,107,255,.16),transparent 68%),
  radial-gradient(520px 300px at 2% 4%,rgba(15,157,143,.12),transparent 70%),
  linear-gradient(180deg,#f0f5ff 0%,#f5f8fd 100%);
 border-bottom:1px solid var(--line);
}
.crumbs{display:flex;align-items:center;gap:9px;font-size:.85rem;color:var(--muted)}
.crumbs a:hover{color:var(--brand)}
.crumbs i{font-size:.62rem;color:#b3c2d8}
.page-hero h1{
 margin-top:14px;
 font-size:clamp(1.55rem,3vw,2.3rem);
 font-weight:800;
 max-width:900px;
}
.page-hero .lead{margin-top:16px;max-width:740px;font-size:1.02rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:38px}
.stat-card{
 background:#fff;
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:18px 20px;
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--brand-line)}
.stat-num{font-size:1.5rem;font-weight:800;color:var(--brand);letter-spacing:-.02em}
.stat-label{font-size:.86rem;color:var(--muted);margin-top:4px}
.progress-wrap{margin-top:30px;max-width:620px}
.progress-top{display:flex;justify-content:space-between;font-size:.88rem;color:var(--ink-2);font-weight:600}
.progress-line{height:8px;border-radius:999px;background:var(--brand-soft);overflow:hidden;margin-top:10px;border:1px solid var(--brand-line)}
.progress-line span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#2f6bff,#0f9d8f)}

/* ---------- generic blocks ---------- */
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;flex-wrap:wrap;margin-bottom:36px}
.head-row .section-head{margin-bottom:0}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card-grid.cols-2{grid-template-columns:repeat(2,1fr)}
.card{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:26px;
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--brand-line)}
.card-icon{
 width:46px;height:46px;border-radius:14px;
 background:var(--brand-soft);color:var(--brand);
 display:grid;place-items:center;font-size:1.08rem;margin-bottom:16px;
}
.card h3{font-size:1.06rem;font-weight:800}
.card p{margin-top:10px;color:var(--ink-2);font-size:.93rem}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:38px;align-items:start}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{
 position:relative;
 background:#fff;
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:24px 22px 26px;
 box-shadow:var(--shadow-xs);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--brand-line)}
.step-no{font-size:.8rem;font-weight:800;letter-spacing:.16em;color:var(--brand)}
.step h3{font-size:1rem;margin-top:10px;font-weight:800}
.step p{margin-top:8px;font-size:.9rem;color:var(--ink-2)}
.step::after{
 content:"";
 position:absolute;right:-11px;top:44px;
 width:22px;height:1px;background:var(--brand-line);
}
.step:last-child::after{display:none}

/* ---------- dark section ---------- */
.section-dark{
 background:linear-gradient(158deg,#0d1b2e 0%,#12305e 58%,#153fa8 100%);
 color:#e6eeff;
}
.section-dark .lead{color:#b8c9e6}
.section-dark h2{color:#fff}
.tick-list{display:grid;gap:12px;margin-top:24px}
.tick-list li{
 display:flex;gap:11px;align-items:flex-start;
 font-size:.94rem;color:#c6d6ef;
}
.tick-list li i{color:#5ce0c8;margin-top:5px;font-size:.78rem}
.dark-panel{
 background:rgba(255,255,255,.07);
 border:1px solid rgba(255,255,255,.16);
 border-radius:var(--radius-lg);
 padding:26px;
 backdrop-filter:blur(6px);
}
.dark-panel h3{color:#fff;font-size:1.05rem;font-weight:800}
.panel-list{display:grid;gap:12px;margin-top:18px}
.panel-list li{
 display:flex;justify-content:space-between;gap:14px;
 font-size:.9rem;color:#c6d6ef;
 padding:12px 14px;
 border-radius:var(--radius-sm);
 background:rgba(255,255,255,.06);
 border:1px solid rgba(255,255,255,.1);
}
.panel-list li b{color:#fff;font-weight:700}
.panel-note{margin-top:18px;font-size:.86rem;color:#9fb4d6}

/* ---------- tags & resource list ---------- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag{
 padding:8px 15px;border-radius:999px;
 background:#fff;border:1px solid var(--line);
 font-size:.88rem;color:var(--ink-2);font-weight:600;
 box-shadow:var(--shadow-xs);
 transition:color .2s ease,border-color .2s ease,background-color .2s ease,transform .2s ease;
}
.tag:hover{color:var(--brand);border-color:var(--brand-line);background:var(--brand-soft);transform:translateY(-2px)}
.resource-list{margin-top:6px}
.resource-list li{
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 padding:16px 0;border-bottom:1px dashed var(--line);
}
.resource-list li:last-child{border-bottom:0}
.resource-list .r-main{display:flex;align-items:center;gap:12px}
.resource-list .r-main i{color:var(--brand);font-size:.95rem}
.resource-list .r-main strong{font-size:.96rem;font-weight:700}
.resource-list .r-main small{display:block;color:var(--muted);font-size:.84rem;font-weight:400}
.badge-soft{
 display:inline-flex;align-items:center;
 padding:4px 11px;border-radius:999px;
 font-size:.78rem;font-weight:700;
 color:var(--brand);background:var(--brand-soft);border:1px solid var(--brand-line);
 white-space:nowrap;
}
.badge-ok{color:#0b7d72;background:#e6f7f4;border-color:#c3ece6}

/* ---------- metrics ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.metric{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:22px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.metric:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--brand-line)}
.metric strong{display:block;font-size:1.72rem;font-weight:800;color:var(--ink);letter-spacing:-.02em}
.metric span{display:block;color:var(--muted);font-size:.86rem;margin-top:6px}
.metric i{color:var(--accent);font-size:.85rem;margin-right:6px}

/* ---------- path ---------- */
.path-list{margin-top:8px}
.path-item{
 display:grid;grid-template-columns:200px 1fr;
 gap:22px;
 padding:24px 0;
 border-bottom:1px solid var(--line);
 align-items:start;
}
.path-item:last-child{border-bottom:0}
.path-tag{font-size:.8rem;font-weight:800;letter-spacing:.1em;color:var(--brand)}
.path-item h3{font-size:1.02rem;font-weight:800;margin-top:6px}
.path-item p{margin-top:8px;color:var(--ink-2);font-size:.92rem}
.path-bar{margin-top:14px}
.path-bar .progress-top{font-size:.84rem}

/* ---------- FAQ ---------- */
.faq .accordion-item{
 border:1px solid var(--line);
 border-radius:var(--radius)!important;
 margin-bottom:12px;
 overflow:hidden;
 background:#fff;
 box-shadow:var(--shadow-xs);
}
.faq .accordion-button{
 font-weight:700;
 font-size:1rem;
 color:var(--ink);
 background:#fff;
 padding:18px 22px;
 box-shadow:none;
}
.faq .accordion-button:not(.collapsed){background:var(--brand-soft);color:var(--brand-dark)}
.faq .accordion-button:focus{box-shadow:0 0 0 3px rgba(47,107,255,.18);border-color:transparent}
.faq .accordion-button::after{
 background-image:none;
 content:"\f078";
 font-family:"Font Awesome 6 Free";
 font-weight:900;
 font-size:.78rem;
 color:var(--brand);
 width:auto;height:auto;
 display:grid;place-items:center;
 transition:transform .2s ease;
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.faq .accordion-body{padding:6px 22px 22px;color:var(--ink-2);font-size:.94rem}

/* ---------- CTA ---------- */
.cta-band{
 background:linear-gradient(150deg,#12305e 0%,#1d4ed8 100%);
 color:#fff;
 border-radius:var(--radius-lg);
 padding:42px;
 display:grid;
 grid-template-columns:1fr 1fr;
 gap:38px;
 box-shadow:var(--shadow-lg);
}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,1.85rem);font-weight:800;color:#fff}
.cta-band p{margin-top:14px;color:#cfdcf5;font-size:.96rem}
.cta-points{display:grid;gap:10px;margin-top:22px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:.92rem;color:#dbe6fb}
.cta-points li i{color:#5ce0c8;margin-top:5px;font-size:.76rem}
.form-card{
 background:rgba(255,255,255,.1);
 border:1px solid rgba(255,255,255,.2);
 border-radius:var(--radius);
 padding:26px;
 backdrop-filter:blur(8px);
}
.form-card h3{color:#fff;font-size:1.08rem;font-weight:800}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px}
.field{display:grid;gap:7px}
.field.full{grid-column:1 / -1}
.field label{font-size:.85rem;color:#cfdcf5;font-weight:600}
.field input,.field select,.field textarea{
 width:100%;
 border:1px solid rgba(255,255,255,.28);
 background:rgba(255,255,255,.14);
 color:#fff;
 border-radius:var(--radius-sm);
 padding:12px 14px;
 font-size:.93rem;
 transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:#a9bcdd}
.field select option{color:#0d1b2e}
.field input:focus,.field select:focus,.field textarea:focus{
 outline:none;
 border-color:#9dc0ff;
 background:rgba(255,255,255,.22);
 box-shadow:0 0 0 3px rgba(157,192,255,.28);
}
.form-card .btn{margin-top:18px}
.form-note{margin-top:12px;font-size:.82rem;color:#b9cbea}
.form-msg{margin-top:12px;font-size:.88rem;color:#7ef0d6;font-weight:600;display:none}
.form-msg.show{display:block}

/* ---------- footer ---------- */
.site-footer{background:#0d1b2e;color:#c8d5ea;padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.06rem}
.footer-desc{margin-top:16px;font-size:.92rem;color:#9fb2cf;max-width:440px}
.footer-col h4{color:#fff;font-size:.98rem;font-weight:700;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:#9fb2cf;font-size:.92rem}
.footer-col a:hover{color:#fff}
.footer-bottom{
 margin-top:40px;padding-top:20px;
 border-top:1px solid rgba(255,255,255,.12);
 display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
 font-size:.85rem;color:#8ba0bf;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .card-grid{grid-template-columns:repeat(2,1fr)}
 .hero-stats{grid-template-columns:repeat(2,1fr)}
 .steps{grid-template-columns:repeat(2,1fr)}
 .step:nth-child(2)::after{display:none}
 .metric-grid{grid-template-columns:repeat(2,1fr)}
 .split{grid-template-columns:1fr;gap:28px}
 .cta-band{grid-template-columns:1fr;padding:34px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
 .nav-menu a{padding:9px 11px;font-size:.9rem}
}
@media (max-width:900px){
 .nav-toggle{display:flex}
 .nav-cta{display:none}
 .nav-menu{
  position:absolute;
  left:0;right:0;top:calc(100% + 10px);
  margin-left:0;
  display:none;
  flex-direction:column;
  align-items:stretch;
  gap:6px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-lg);
  padding:12px;
 }
 .nav-menu.is-open{display:flex}
 .nav-menu a{padding:12px 14px;border-radius:12px;font-size:.96rem}
 .nav-cta-mobile{display:inline-flex;justify-content:center;margin-top:6px}
 .section{padding:60px 0}
 .steps{grid-template-columns:1fr}
 .step::after{display:none}
 .path-item{grid-template-columns:1fr;gap:10px}
}
@media (max-width:560px){
 .shell{padding:0 16px}
 .page-hero{padding:40px 0 46px}
 .hero-stats{grid-template-columns:1fr}
 .card-grid,.card-grid.cols-2{grid-template-columns:1fr}
 .metric-grid{grid-template-columns:1fr}
 .form-grid{grid-template-columns:1fr}
 .cta-band{padding:26px 20px}
 .form-card{padding:20px}
 .footer-grid{grid-template-columns:1fr}
 .section{padding:50px 0}
 .head-row{margin-bottom:26px}
}

/* roulang page: category2 */
/* ===== roulang design system : 炮房无码V ===== */
:root{
 --brand:#1d4ed8;
 --brand-dark:#153fa8;
 --brand-soft:#eaf1ff;
 --brand-line:#cbdcff;
 --accent:#0f9d8f;
 --ink:#0d1b2e;
 --ink-2:#3f5372;
 --muted:#7286a2;
 --bg:#f5f8fd;
 --surface:#ffffff;
 --line:#e3eaf5;
 --radius-xs:8px;
 --radius-sm:12px;
 --radius:18px;
 --radius-lg:26px;
 --shadow-xs:0 1px 2px rgba(13,27,46,.05);
 --shadow-sm:0 4px 16px rgba(13,27,46,.06);
 --shadow:0 14px 38px rgba(13,27,46,.09);
 --shadow-lg:0 28px 70px rgba(13,27,46,.14);
 --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:var(--font);
 font-size:16px;
 line-height:1.72;
 color:var(--ink);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.012em;color:var(--ink);line-height:1.34}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease}
img{max-width:100%;display:block}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit;width:100%}
:focus-visible{outline:3px solid rgba(29,78,216,.42);outline-offset:2px;border-radius:8px}
::selection{background:rgba(29,78,216,.18)}

.shell{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
.section{padding:76px 0}
.section-tight{padding:48px 0}
.section-alt{background:var(--surface)}
.section-head{max-width:780px;margin-bottom:40px}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:clamp(1.42rem,2.5vw,2rem)}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:1rem}
.eyebrow{
 display:inline-block;
 font-size:.8rem;
 font-weight:700;
 letter-spacing:.08em;
 color:var(--brand);
 background:var(--brand-soft);
 border:1px solid var(--brand-line);
 border-radius:999px;
 padding:5px 14px;
 margin-bottom:16px;
}
.grid{display:grid;gap:22px}

/* ===== header / nav ===== */
.site-header{
 position:sticky;
 top:0;
 z-index:80;
 background:rgba(255,255,255,.92);
 backdrop-filter:blur(14px);
 border-bottom:1px solid var(--line);
}
.nav-inner{position:relative;display:flex;align-items:center;gap:16px;height:74px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.01em}
.logo-mark{
 width:36px;height:36px;border-radius:11px;
 background:linear-gradient(140deg,#2f6bff,#153fa8);
 color:#fff;display:grid;place-items:center;
 font-size:.95rem;font-weight:800;
 box-shadow:0 8px 18px rgba(29,78,216,.28);
}
.logo-text{font-size:1.08rem;color:var(--ink)}
.nav-menu{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav-menu a{
 padding:9px 15px;
 border-radius:999px;
 font-size:.94rem;
 color:var(--ink-2);
 font-weight:500;
 white-space:nowrap;
}
.nav-menu a:hover{background:var(--brand-soft);color:var(--brand)}
.nav-menu a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:700}
.nav-cta{flex:none}
.nav-cta-mobile{display:none}
.nav-toggle{
 display:none;
 width:44px;height:44px;
 border-radius:12px;
 border:1px solid var(--line);
 background:#fff;
 margin-left:auto;
 flex-direction:column;
 align-items:center;
 justify-content:center;
 gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== buttons / badges ===== */
.btn{
 display:inline-flex;
 align-items:center;
 justify-content:center;
 gap:8px;
 padding:12px 24px;
 border-radius:13px;
 font-size:.95rem;
 font-weight:700;
 line-height:1.2;
 border:1px solid transparent;
 transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-brand{
 background:linear-gradient(140deg,#2f6bff,#153fa8);
 color:#fff;
 box-shadow:0 12px 26px rgba(29,78,216,.28);
}
.btn-brand:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(29,78,216,.34);color:#fff}
.btn-brand:active{transform:translateY(0);box-shadow:0 8px 18px rgba(29,78,216,.26)}
.btn-ghost{
 background:#fff;
 border-color:var(--line);
 color:var(--ink-2);
 box-shadow:var(--shadow-xs);
}
.btn-ghost:hover{border-color:var(--brand-line);color:var(--brand);transform:translateY(-2px)}
.btn-light{
 background:#fff;
 color:var(--brand-dark);
 box-shadow:0 12px 26px rgba(5,20,60,.24);
}
.btn-light:hover{transform:translateY(-2px);color:var(--brand-dark)}
.btn-outline-light{
 background:transparent;
 border-color:rgba(255,255,255,.42);
 color:#fff;
}
.btn-outline-light:hover{border-color:#fff;background:rgba(255,255,255,.12);color:#fff}
.btn-wide{width:100%}
.btn-sm{padding:9px 18px;font-size:.88rem;border-radius:11px}

.badge-hot{
 display:inline-flex;align-items:center;gap:6px;
 background:linear-gradient(135deg,#ff7043,#e0342a);
 color:#fff;font-size:.79rem;font-weight:800;letter-spacing:.02em;
 border-radius:999px;padding:6px 14px;
 box-shadow:0 10px 22px rgba(224,52,42,.26);
}
.badge-limit{
 display:inline-flex;align-items:center;gap:8px;
 background:#fff;border:1px dashed var(--brand-line);
 color:var(--brand-dark);font-size:.83rem;font-weight:700;
 border-radius:999px;padding:6px 14px;
}
.tag{
 display:inline-flex;align-items:center;gap:6px;
 font-size:.78rem;font-weight:700;
 padding:4px 11px;border-radius:999px;
 background:var(--brand-soft);color:var(--brand);
 border:1px solid var(--brand-line);
}
.tag-accent{background:#e6f8f5;color:#0b7a70;border-color:#c3ece6}

/* ===== page hero (分类页首屏) ===== */
.page-hero{
 position:relative;
 overflow:hidden;
 padding:52px 0 62px;
 background:
 radial-gradient(760px 340px at 94% -18%,rgba(47,107,255,.18),transparent 66%),
 radial-gradient(520px 280px at 0% 8%,rgba(15,157,143,.13),transparent 72%),
 linear-gradient(180deg,#eef4ff 0%,#f5f8fd 100%);
 border-bottom:1px solid var(--line);
}
.page-hero .shell{position:relative;z-index:2}
.hero-layout{display:grid;grid-template-columns:1.22fr .78fr;gap:46px;align-items:center}
.hero-flags{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.page-hero h1{font-size:clamp(1.55rem,3vw,2.3rem);margin-top:18px}
.hero-lead{margin-top:16px;font-size:1.06rem;font-weight:700;color:var(--brand-dark)}
.hero-text{margin-top:14px;color:var(--ink-2);max-width:660px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-meta{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:34px}
.meta-card{
 background:#fff;border:1px solid var(--line);
 border-radius:var(--radius);padding:18px 20px;
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease;
}
.meta-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.meta-card b{display:block;font-size:1.5rem;font-weight:800;color:var(--brand-dark);letter-spacing:-.02em;line-height:1.25}
.meta-card span{font-size:.85rem;color:var(--ink-2)}

.promo-panel{
 position:relative;
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 padding:28px 26px 26px;
 box-shadow:var(--shadow-lg);
}
.promo-sticker{
 position:absolute;top:-16px;right:-12px;
 width:74px;height:74px;border-radius:50%;
 background:linear-gradient(140deg,#ff7043,#d92d24);
 color:#fff;display:grid;place-items:center;
 font-weight:800;font-size:.86rem;line-height:1.2;text-align:center;
 box-shadow:0 16px 30px rgba(217,45,36,.34);
 transform:rotate(-8deg);
}
.promo-panel h2{font-size:1.18rem}
.promo-panel .promo-sub{margin-top:8px;font-size:.9rem;color:var(--ink-2)}
.promo-rows{margin-top:18px;display:grid;gap:10px}
.promo-rows li{
 display:flex;align-items:flex-start;justify-content:space-between;gap:12px;
 font-size:.88rem;color:var(--ink-2);
 background:#f7faff;border:1px solid var(--line);
 border-radius:var(--radius-sm);padding:11px 14px;
}
.promo-rows li b{color:var(--ink);font-weight:700}
.quota{margin-top:20px}
.quota-top{display:flex;justify-content:space-between;font-size:.82rem;color:var(--ink-2);font-weight:600}
.quota-bar{height:9px;border-radius:999px;background:#e8eefb;overflow:hidden;margin-top:9px}
.quota-bar span{
 display:block;height:100%;width:81%;
 background:linear-gradient(90deg,#2f6bff,#0f9d8f);
 border-radius:999px;
}
.promo-note{margin-top:12px;font-size:.8rem;color:var(--muted)}

/* ===== pain points ===== */
.pain-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.pain-card{
 background:#fff;border:1px solid var(--line);border-left:4px solid #ff7a59;
 border-radius:var(--radius);padding:24px 22px;
 box-shadow:var(--shadow-xs);
 transition:transform .2s ease,box-shadow .2s ease;
 height:100%;
}
.pain-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.pain-icon{
 width:42px;height:42px;border-radius:12px;
 display:grid;place-items:center;
 background:#fff1ec;color:#e2552f;font-size:1rem;margin-bottom:16px;
}
.pain-card h3{font-size:1.02rem}
.pain-card p{margin-top:10px;font-size:.9rem;color:var(--ink-2)}

/* ===== split solution ===== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:center}
.solve-list{display:grid;gap:14px}
.solve-item{
 display:flex;gap:14px;
 background:#fff;border:1px solid var(--line);
 border-radius:var(--radius);padding:18px 20px;
 box-shadow:var(--shadow-xs);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.solve-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:var(--brand-line)}
.solve-item .ico{
 width:44px;height:44px;flex:none;border-radius:13px;
 background:var(--brand-soft);color:var(--brand);
 display:grid;place-items:center;font-size:1.02rem;
}
.solve-item h3{font-size:1rem}
.solve-item p{margin-top:5px;font-size:.89rem;color:var(--ink-2)}

.panel-visual{
 background:linear-gradient(160deg,#0d1b2e 0%,#17356e 100%);
 border-radius:var(--radius-lg);
 padding:30px;
 color:#fff;
 box-shadow:var(--shadow-lg);
}
.pv-head{display:flex;align-items:center;gap:10px;font-size:.92rem;font-weight:700}
.pv-dot{width:9px;height:9px;border-radius:50%;background:#5ef2c6;box-shadow:0 0 0 5px rgba(94,242,198,.16)}
.pv-state{margin-left:auto;font-size:.78rem;font-weight:700;color:#9fe9d8;background:rgba(94,242,198,.12);border-radius:999px;padding:4px 12px}
.pv-rows{margin-top:22px;display:grid;gap:11px}
.pv-rows li{
 display:flex;align-items:center;justify-content:space-between;
 font-size:.88rem;color:#c3d1ea;
 background:rgba(255,255,255,.06);
 border:1px solid rgba(255,255,255,.1);
 border-radius:var(--radius-sm);padding:12px 15px;
}
.pv-rows li b{color:#fff;font-weight:700}
.pv-progress{height:8px;background:rgba(255,255,255,.16);border-radius:999px;overflow:hidden;margin-top:22px}
.pv-progress span{display:block;height:100%;width:86%;border-radius:999px;background:linear-gradient(90deg,#5b8cff,#0f9d8f)}
.pv-note{margin-top:12px;font-size:.82rem;color:#9fb2d2}

/* ===== device matrix ===== */
.device-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.device-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 display:flex;flex-direction:column;overflow:hidden;
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
 height:100%;
}
.device-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--brand-line)}
.device-top{padding:24px 22px 0}
.device-top i.devico{
 width:46px;height:46px;border-radius:14px;
 display:grid;place-items:center;font-size:1.1rem;
 background:linear-gradient(140deg,#eaf1ff,#d9e6ff);color:var(--brand);
 margin-bottom:16px;
}
.device-top h3{font-size:1.03rem}
.device-top p{margin-top:8px;font-size:.88rem;color:var(--ink-2)}
.device-spec{margin:16px 0 0;padding:0 22px;display:grid;gap:9px}
.device-spec li{
 display:flex;align-items:center;justify-content:space-between;gap:10px;
 font-size:.85rem;color:var(--ink-2);
 border-bottom:1px dashed var(--line);padding-bottom:9px;
}
.device-spec li:last-child{border-bottom:0}
.device-spec b{color:var(--ink);font-weight:700}
.device-foot{margin-top:auto;padding:18px 22px 22px}

/* ===== steps ===== */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step{
 position:relative;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:28px 22px 24px;box-shadow:var(--shadow-xs);
 transition:transform .2s ease,box-shadow .2s ease;
 height:100%;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.step-num{
 width:40px;height:40px;border-radius:12px;
 background:linear-gradient(140deg,#2f6bff,#153fa8);color:#fff;
 display:grid;place-items:center;font-weight:800;font-size:.95rem;
 box-shadow:0 10px 20px rgba(29,78,216,.24);
}
.step h3{margin-top:18px;font-size:1rem}
.step p{margin-top:10px;font-size:.89rem;color:var(--ink-2)}
.step::after{
 content:"";
 position:absolute;right:-14px;top:46px;
 width:8px;height:8px;border-radius:50%;
 background:var(--brand-line);
}
.step:last-child::after{display:none}

/* ===== metrics ===== */
.metrics{
 display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 overflow:hidden;box-shadow:var(--shadow);
}
.metric{padding:32px 26px;border-right:1px solid var(--line)}
.metric:last-child{border-right:0}
.metric b{display:block;font-size:2rem;font-weight:800;letter-spacing:-.03em;color:var(--brand-dark);line-height:1.2}
.metric strong{display:block;margin-top:6px;font-size:.95rem;color:var(--ink);font-weight:700}
.metric span{display:block;margin-top:8px;font-size:.85rem;color:var(--ink-2)}

/* ===== quotes ===== */
.quote-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.quote-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:26px;box-shadow:var(--shadow-xs);
 display:flex;flex-direction:column;height:100%;
 transition:transform .2s ease,box-shadow .2s ease;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.quote-mark{color:var(--brand-line);font-size:1.5rem;line-height:1;margin-bottom:12px}
.quote-card p{font-size:.93rem;color:var(--ink-2)}
.quote-person{display:flex;align-items:center;gap:12px;margin-top:22px}
.avatar{
 width:42px;height:42px;border-radius:50%;
 background:var(--brand-soft);color:var(--brand);
 display:grid;place-items:center;font-weight:800;font-size:.92rem;flex:none;
}
.quote-person b{display:block;font-size:.92rem}
.quote-person span{display:block;font-size:.8rem;color:var(--muted)}

/* ===== audience ===== */
.audience-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.audience-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-xs);height:100%;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.audience-card:hover{transform:translateY(-4px);border-color:var(--brand-line);box-shadow:var(--shadow-sm)}
.audience-card h3{font-size:1rem;display:flex;align-items:center;gap:9px}
.audience-card h3 i{color:var(--brand);font-size:.95rem}
.audience-list{margin-top:14px;display:grid;gap:9px}
.audience-list li{
 display:flex;align-items:flex-start;gap:9px;
 font-size:.87rem;color:var(--ink-2);
}
.audience-list li i{color:var(--accent);font-size:.72rem;margin-top:6px}

/* ===== news list ===== */
.news-list{display:grid;gap:14px}
.news-item{
 display:flex;align-items:flex-start;gap:18px;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:20px 22px;box-shadow:var(--shadow-xs);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-item:hover{transform:translateX(5px);border-color:var(--brand-line);box-shadow:var(--shadow-sm)}
.news-date{
 flex:none;font-size:.8rem;font-weight:700;color:var(--brand);
 background:var(--brand-soft);border:1px solid var(--brand-line);
 border-radius:999px;padding:5px 13px;white-space:nowrap;
}
.news-body h3{font-size:.98rem}
.news-body p{margin-top:7px;font-size:.88rem;color:var(--ink-2)}
.news-more{margin-top:26px;display:flex;justify-content:flex-start}

/* ===== cta ===== */
.cta-band{
 background:linear-gradient(150deg,#12285a 0%,#1d4ed8 78%);
 border-radius:var(--radius-lg);
 padding:44px;
 color:#fff;
 box-shadow:var(--shadow-lg);
 display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center;
}
.cta-band h2{color:#fff;font-size:clamp(1.4rem,2.4vw,1.85rem)}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.82);font-size:.96rem}
.cta-points{margin-top:22px;display:grid;gap:11px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:.9rem;color:rgba(255,255,255,.9)}
.cta-points li i{color:#5ef2c6;margin-top:5px;font-size:.78rem}
.cta-form{
 background:rgba(255,255,255,.97);
 border-radius:var(--radius);padding:26px;
 box-shadow:0 24px 60px rgba(5,18,48,.28);
}
.cta-form h3{font-size:1.05rem}
.cta-form .form-sub{margin-top:6px;font-size:.84rem;color:var(--ink-2)}
.field{margin-top:14px}
.field label{display:block;font-size:.82rem;font-weight:700;color:var(--ink-2);margin-bottom:6px}
.field input,.field textarea,.field select{
 border:1px solid var(--line);
 background:#fbfdff;
 border-radius:var(--radius-sm);
 padding:12px 14px;
 font-size:.91rem;
 transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:#9aabc4}
.field input:focus,.field textarea:focus,.field select:focus{
 outline:none;border-color:var(--brand);background:#fff;
 box-shadow:0 0 0 4px rgba(29,78,216,.12);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-note{margin-top:12px;font-size:.78rem;color:var(--muted)}
.cta-form .btn{margin-top:18px}

/* ===== footer ===== */
.site-footer{
 background:#0b1524;
 color:#c3d1ea;
 padding:56px 0 26px;
 margin-top:0;
}
.footer-grid{
 display:grid;grid-template-columns:1.5fr 1fr 1fr;
 gap:38px;
 padding-bottom:34px;
 border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;color:#fff;font-size:1.05rem}
.footer-desc{margin-top:16px;font-size:.88rem;color:#93a5c2;max-width:440px}
.footer-col h4{font-size:.95rem;color:#fff;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:.87rem;color:#93a5c2}
.footer-col a:hover{color:#fff}
.footer-bottom{
 display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
 padding-top:20px;font-size:.82rem;color:#7288a8;
}

/* ===== responsive ===== */
@media (max-width:1080px){
 .hero-layout{grid-template-columns:1fr;gap:34px}
 .pain-grid,.device-grid,.steps,.audience-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
 .metric{border-bottom:1px solid var(--line)}
 .metric:nth-child(2n){border-right:0}
 .metric:nth-child(n+3){border-bottom:0}
 .quote-grid{grid-template-columns:1fr}
 .split{grid-template-columns:1fr;gap:30px}
 .cta-band{grid-template-columns:1fr;padding:34px;gap:30px}
 .footer-grid{grid-template-columns:1fr 1fr}
 .step::after{display:none}
}
@media (max-width:768px){
 .nav-toggle{display:flex}
 .nav-cta{display:none}
 .nav-menu{
  position:absolute;top:calc(100% + 10px);left:14px;right:14px;
  display:none;flex-direction:column;align-items:stretch;gap:6px;
  margin-left:0;padding:14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);
 }
 .nav-menu.is-open{display:flex}
 .nav-menu a{padding:12px 14px;border-radius:12px}
 .nav-cta-mobile{display:inline-flex;margin-top:6px;justify-content:center}
 .section{padding:56px 0}
 .page-hero{padding:40px 0 48px}
 .hero-meta{grid-template-columns:1fr;gap:12px}
 .metric{padding:26px 22px}
 .cta-band{padding:26px 20px}
 .cta-form{padding:22px 18px}
 .footer-grid{grid-template-columns:1fr;gap:26px}
 .promo-sticker{width:64px;height:64px;font-size:.78rem;right:8px;top:-12px}
}
@media (max-width:560px){
 .pain-grid,.device-grid,.steps,.audience-grid,.metrics{grid-template-columns:1fr}
 .metric{border-right:0;border-bottom:1px solid var(--line)}
 .metric:last-child{border-bottom:0}
 .field-row{grid-template-columns:1fr}
 .news-item{flex-direction:column;gap:12px}
 .news-item:hover{transform:translateY(-4px)}
 .hero-actions .btn{width:100%}
 .section-head{margin-bottom:28px}
 .footer-bottom{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --brand:#1d4ed8;
  --brand-dark:#153fa8;
  --brand-soft:#eaf1ff;
  --brand-line:#cbdcff;
  --accent:#0f9d8f;
  --ink:#0d1b2e;
  --ink-2:#3f5372;
  --muted:#7286a2;
  --bg:#f5f8fd;
  --surface:#ffffff;
  --line:#e3eaf5;
  --radius-xs:8px;
  --radius-sm:12px;
  --radius:18px;
  --radius-lg:26px;
  --shadow-xs:0 1px 2px rgba(13,27,46,.05);
  --shadow-sm:0 4px 16px rgba(13,27,46,.06);
  --shadow:0 14px 38px rgba(13,27,46,.09);
  --shadow-lg:0 28px 70px rgba(13,27,46,.14);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.72;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;color:var(--ink);line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease,opacity .2s ease}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(29,78,216,.35);outline-offset:2px;border-radius:8px}
.shell{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.section{padding:76px 0}
.section-tight{padding:46px 0}
.section-alt{background:var(--surface)}
.section-head{max-width:780px;margin-bottom:38px}
.section-head h2{font-size:clamp(1.45rem,2.5vw,2rem)}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:1rem}
.eyebrow{
  display:inline-block;
  font-size:.8rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--brand);
  background:var(--brand-soft);
  border:1px solid var(--brand-line);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:16px;
}
.lead{color:var(--ink-2)}
/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:16px;height:74px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.01em}
.logo-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(140deg,#2f6bff,#153fa8);
  color:#fff;display:grid;place-items:center;
  font-size:.95rem;font-weight:800;
  box-shadow:0 8px 18px rgba(29,78,216,.28);
  flex:none;
}
.logo-text{font-size:1.08rem;color:var(--ink)}
.nav-menu{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav-menu a{
  padding:9px 15px;
  border-radius:999px;
  font-size:.94rem;
  color:var(--ink-2);
  font-weight:500;
  white-space:nowrap;
}
.nav-menu a:hover{background:var(--brand-soft);color:var(--brand)}
.nav-menu a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:700}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  margin-left:auto;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-cta{flex:none;margin-left:10px}
.nav-cta-mobile{display:none}
/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:13px;
  font-size:.95rem;
  font-weight:700;
  line-height:1.2;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-brand{
  background:linear-gradient(140deg,#2f6bff,#153fa8);
  color:#fff;
  box-shadow:0 12px 26px rgba(29,78,216,.28);
}
.btn-brand:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(29,78,216,.34);color:#fff}
.btn-brand:active{transform:translateY(0);box-shadow:0 8px 18px rgba(29,78,216,.26)}
.btn-ghost{
  background:#fff;
  border-color:var(--line);
  color:var(--ink-2);
  box-shadow:var(--shadow-xs);
}
.btn-ghost:hover{border-color:var(--brand-line);color:var(--brand);transform:translateY(-2px)}
.btn-white{background:#fff;color:var(--brand-dark);box-shadow:0 12px 26px rgba(4,20,50,.22)}
.btn-white:hover{transform:translateY(-2px);color:var(--brand-dark)}
.btn-block{width:100%}
.btn-sm{padding:9px 18px;font-size:.88rem;border-radius:11px}
/* ---------- hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:38px 0 66px;
  background:
    radial-gradient(760px 340px at 92% -18%,rgba(47,107,255,.18),transparent 68%),
    radial-gradient(600px 320px at 2% 4%,rgba(15,157,143,.12),transparent 70%),
    linear-gradient(180deg,#eef4ff 0%,#f5f8fd 100%);
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.85rem;color:var(--muted);margin-bottom:26px}
.crumb a:hover{color:var(--brand)}
.crumb i{font-size:.62rem;opacity:.7}
.hero h1{
  font-size:clamp(1.6rem,3vw,2.35rem);
  line-height:1.3;
  letter-spacing:-.015em;
  margin-top:4px;
}
.hero-desc{margin-top:18px;color:var(--ink-2);max-width:640px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-points li{
  display:inline-flex;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:7px 15px;font-size:.87rem;color:var(--ink-2);font-weight:600;
  box-shadow:var(--shadow-xs);
}
.hero-points li i{color:var(--accent);font-size:.78rem}
/* directory list */
.dir-list{margin-top:30px;display:grid;gap:10px;max-width:640px}
.dir-list li{
  display:flex;align-items:flex-start;gap:12px;
  background:#fff;
  border:1px solid var(--line);
  border-left:3px solid var(--brand-line);
  border-radius:var(--radius-sm);
  padding:12px 16px;
  font-size:.92rem;
  color:var(--ink-2);
  box-shadow:var(--shadow-xs);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.dir-list li:hover{border-left-color:var(--brand);transform:translateX(4px);box-shadow:var(--shadow-sm)}
.dir-list i{color:var(--brand);margin-top:6px;font-size:.7rem}
.dir-list strong{color:var(--ink);font-weight:700}
/* document card */
.doc-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:24px;
  box-shadow:var(--shadow-lg);
}
.doc-cover{
  background:linear-gradient(140deg,#2f6bff 0%,#153fa8 100%);
  color:#fff;
  border-radius:var(--radius);
  padding:24px 22px;
  position:relative;
  overflow:hidden;
}
.doc-cover::after{
  content:"";
  position:absolute;
  right:-40px;bottom:-60px;
  width:170px;height:170px;
  border-radius:50%;
  background:rgba(255,255,255,.12);
}
.doc-kicker{font-size:.76rem;letter-spacing:.14em;opacity:.88;font-weight:700}
.doc-cover h2{color:#fff;font-size:1.18rem;margin-top:10px;position:relative;z-index:1}
.doc-cover p{margin-top:10px;font-size:.86rem;color:rgba(255,255,255,.86);position:relative;z-index:1}
.doc-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;position:relative;z-index:1}
.doc-meta span{
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.3);
  border-radius:999px;
  padding:4px 12px;
  font-size:.76rem;
}
.doc-list{margin-top:20px;display:grid;gap:9px}
.doc-list li{display:flex;align-items:flex-start;gap:10px;font-size:.9rem;color:var(--ink-2)}
.doc-list i{color:var(--accent);margin-top:6px;font-size:.72rem}
.apply-form{margin-top:20px;display:grid;gap:12px}
.field input{
  width:100%;
  border:1px solid var(--line);
  background:#fbfdff;
  border-radius:var(--radius-sm);
  padding:12px 14px;
  font-size:.93rem;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field input::placeholder{color:#9aabc4}
.field input:focus{outline:none;border-color:var(--brand-line);background:#fff;box-shadow:0 0 0 4px rgba(47,107,255,.12)}
.form-note{margin-top:12px;font-size:.79rem;color:var(--muted);line-height:1.6}
/* ---------- stats ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.stat{padding:26px 24px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat strong{display:block;font-size:1.72rem;font-weight:800;color:var(--brand);line-height:1.2}
.stat span{display:block;margin-top:6px;font-size:.86rem;color:var(--muted)}
/* ---------- collection cards ---------- */
.collection-card{
  height:100%;
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.collection-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--brand-line)}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.badge-soft{
  background:var(--brand-soft);
  color:var(--brand);
  border:1px solid var(--brand-line);
  border-radius:999px;
  padding:4px 12px;
  font-size:.76rem;
  font-weight:700;
  white-space:nowrap;
}
.card-count{font-size:.8rem;color:var(--muted);white-space:nowrap}
.collection-card h3{margin-top:16px;font-size:1.06rem}
.collection-card p{margin-top:10px;font-size:.92rem;color:var(--ink-2);flex:1}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.card-tags li{
  font-size:.75rem;
  color:var(--ink-2);
  background:#f3f7ff;
  border:1px solid var(--line);
  border-radius:8px;
  padding:3px 10px;
}
.grid-foot{margin-top:34px;display:flex;justify-content:center}
/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow-xs);
  transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.step-num{
  width:38px;height:38px;
  border-radius:12px;
  background:var(--brand-soft);
  border:1px solid var(--brand-line);
  color:var(--brand);
  display:grid;place-items:center;
  font-weight:800;font-size:.95rem;
}
.step h3{margin-top:16px;font-size:1rem}
.step p{margin-top:10px;font-size:.9rem;color:var(--ink-2)}
/* ---------- spec ---------- */
.spec-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:40px;align-items:start}
.check-list{margin-top:22px}
.check-list li{display:flex;align-items:flex-start;gap:10px;margin-top:12px;font-size:.94rem;color:var(--ink-2)}
.check-list i{color:var(--accent);margin-top:6px;font-size:.76rem}
.spec-panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:12px 26px;
  box-shadow:var(--shadow);
}
.spec-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 0;
  border-bottom:1px dashed var(--line);
  font-size:.92rem;
}
.spec-row:last-child{border-bottom:0}
.spec-row span{color:var(--muted)}
.spec-row strong{font-weight:700;color:var(--ink);text-align:right}
/* ---------- timeline ---------- */
.tl-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:40px;align-items:start}
.timeline{position:relative;padding-left:26px;border-left:2px solid var(--brand-line);display:grid;gap:26px}
.tl-item{position:relative}
.tl-item::before{
  content:"";
  position:absolute;left:-35px;top:8px;
  width:12px;height:12px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px var(--brand-soft);
}
.tl-item time{display:block;font-size:.79rem;font-weight:700;letter-spacing:.06em;color:var(--brand)}
.tl-item h3{margin-top:6px;font-size:1.02rem}
.tl-item p{margin-top:8px;font-size:.91rem;color:var(--ink-2)}
/* ---------- quotes ---------- */
.quote-card{
  height:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:var(--shadow-sm);
  display:flex;
  flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.quote-mark{color:var(--brand-line);font-size:1.4rem}
.quote-card blockquote{margin:14px 0 0;font-size:.95rem;color:var(--ink-2);flex:1}
.quote-person{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.avatar{
  width:42px;height:42px;border-radius:50%;
  background:linear-gradient(140deg,#2f6bff,#153fa8);
  color:#fff;display:grid;place-items:center;
  font-weight:700;font-size:.92rem;flex:none;
}
.person-name{font-weight:700;font-size:.9rem}
.person-role{font-size:.8rem;color:var(--muted)}
/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:start}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px 22px;
  box-shadow:var(--shadow-xs);
  margin-bottom:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--brand-line);box-shadow:var(--shadow-sm)}
.faq-item h3{font-size:1rem;display:flex;align-items:flex-start;gap:10px}
.faq-item h3 i{color:var(--brand);margin-top:5px;font-size:.85rem}
.faq-item p{margin-top:10px;padding-left:27px;font-size:.92rem;color:var(--ink-2)}
/* ---------- channels ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.channel-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:var(--shadow-xs);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--brand-line)}
.ch-icon{
  width:42px;height:42px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:1rem;
}
.channel-card h3{margin-top:14px;font-size:1rem}
.channel-card p{margin-top:8px;font-size:.88rem;color:var(--ink-2);flex:1}
.ch-more{margin-top:16px;display:inline-flex;align-items:center;gap:6px;font-size:.85rem;font-weight:700;color:var(--brand)}
.channel-card:hover .ch-more{gap:10px}
/* ---------- cta ---------- */
.cta-band{
  background:linear-gradient(135deg,#102a63 0%,#1d4ed8 58%,#1b6fe0 100%);
  border-radius:var(--radius-lg);
  padding:46px 44px;
  color:#fff;
  box-shadow:var(--shadow-lg);
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;right:-70px;top:-70px;
  width:240px;height:240px;border-radius:50%;
  background:rgba(255,255,255,.09);
}
.cta-band h2{color:#fff;font-size:clamp(1.35rem,2.4vw,1.85rem);position:relative;z-index:1}
.cta-band > *{position:relative;z-index:1}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.86);max-width:640px}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px;max-width:720px}
.cta-form input{
  flex:1 1 260px;
  border:1px solid rgba(255,255,255,.38);
  background:rgba(255,255,255,.12);
  color:#fff;
  border-radius:13px;
  padding:13px 16px;
  font-size:.94rem;
}
.cta-form input::placeholder{color:rgba(255,255,255,.72)}
.cta-form input:focus{outline:none;border-color:#fff;background:rgba(255,255,255,.2)}
.cta-note{margin-top:16px;font-size:.82rem;color:rgba(255,255,255,.74)}
.cta-metrics{display:flex;flex-wrap:wrap;gap:26px;margin-top:28px}
.cta-metrics div{font-size:.86rem;color:rgba(255,255,255,.82)}
.cta-metrics strong{display:block;font-size:1.35rem;font-weight:800;color:#fff}
/* ---------- footer ---------- */
.site-footer{background:#0b1729;color:#b9c7dd;padding:58px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:38px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.05rem}
.footer-desc{margin-top:16px;font-size:.9rem;color:#93a6c4;max-width:430px;line-height:1.75}
.footer-col h4{color:#fff;font-size:.98rem;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:.9rem;color:#a8bad6}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  font-size:.84rem;
  color:#8296b6;
}
/* ---------- responsive ---------- */
@media (max-width:1024px){
  .section{padding:62px 0}
  .spec-grid,.tl-layout,.faq-layout{grid-template-columns:1fr;gap:30px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .channel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:nth-child(odd){border-right:1px solid var(--line)}
  .stat:nth-child(3),.stat:nth-child(4){border-bottom:0}
}
@media (max-width:860px){
  .nav-toggle{display:flex}
  .nav-menu{
    position:absolute;
    top:74px;left:16px;right:16px;
    margin-left:0;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow-lg);
    padding:12px;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
  }
  .nav-menu.is-open{display:flex}
  .nav-menu a{padding:12px 14px;border-radius:12px}
  .nav-cta{display:none}
  .nav-cta-mobile{display:inline-flex;margin-top:8px}
  .cta-band{padding:34px 24px}
  .doc-card{padding:20px}
}
@media (max-width:640px){
  .section{padding:52px 0}
  .steps{grid-template-columns:1fr}
  .channel-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .hero{padding:28px 0 52px}
  .hero-points li{font-size:.82rem}
  .stat{padding:20px 18px}
  .collection-card{padding:20px}
}
@media (max-width:520px){
  .shell{padding:0 16px}
  .logo-text{font-size:1rem}
  .stat-strip{grid-template-columns:1fr}
  .stat{border-right:0!important;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  .cta-form input{flex:1 1 100%}
  .btn{width:100%}
  .nav-toggle{width:42px;height:42px}
  .cta-band{padding:28px 20px}
}

/* 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}