/* roulang page: index */
:root{
  --fs-primary:#F4552B;
  --fs-primary-deep:#D33E18;
  --fs-secondary:#0F3D33;
  --fs-secondary-deep:#0A2C25;
  --fs-accent:#D8F13C;
  --fs-ink:#12161A;
  --fs-ink-soft:#4A525B;
  --fs-bg:#F7F5F1;
  --fs-surface:#FFFFFF;
  --fs-line:#E5E0D7;
  --fs-line-dark:rgba(255,255,255,.14);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(16,20,24,.06), 0 10px 24px -18px rgba(16,20,24,.3);
  --shadow-2:0 18px 36px -20px rgba(16,20,24,.42);
  --container:1240px;
  --sec-pad:56px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--fs-ink);
  background:var(--fs-bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0}
a{color:var(--fs-secondary);text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out}
a:hover{color:var(--fs-primary)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--fs-primary);outline-offset:2px}
.grid-container{max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px}
.row-gap-x{margin-left:-11px;margin-right:-11px}
.row-gap-x>.cell{padding-left:11px;padding-right:11px}
section{position:relative}
.sec{padding-top:var(--sec-pad);padding-bottom:var(--sec-pad)}
.sec-dark{background:var(--fs-secondary-deep);color:#fff}
.sec-white{background:var(--fs-surface)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn i{transition:transform .18s ease-out}
.btn:hover i{transform:translateX(3px)}
.btn-primary{background:var(--fs-secondary);color:#fff}
.btn-primary:hover{background:var(--fs-secondary-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-accent{background:var(--fs-accent);color:var(--fs-secondary-deep)}
.btn-accent:hover{background:#e6fa55;color:var(--fs-secondary-deep);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;color:var(--fs-secondary);border-color:var(--fs-line)}
.btn-ghost:hover{border-color:var(--fs-primary);color:var(--fs-primary);transform:translateY(-2px)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost-light:hover{background:rgba(255,255,255,.1);color:#fff;border-color:#fff}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--fs-primary)}
.link-arrow i{transition:transform .18s ease-out}
.link-arrow:hover{color:var(--fs-primary-deep)}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- badge ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;line-height:1.6;
  background:rgba(244,85,43,.1);color:var(--fs-primary-deep);
}
.badge-dark{background:rgba(255,255,255,.12);color:var(--fs-accent)}
.badge-solid{background:var(--fs-primary);color:#fff}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--fs-bg);border-bottom:1px solid var(--fs-line);transition:box-shadow .2s ease-out}
.site-header.is-stuck{box-shadow:0 8px 24px -18px rgba(16,20,24,.55)}
.brand-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:40px;height:40px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--fs-secondary) 0%,var(--fs-secondary-deep) 100%);
  color:var(--fs-accent);display:flex;align-items:center;justify-content:center;font-size:19px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.brand-name{font-size:19px;font-weight:800;letter-spacing:-.2px;color:var(--fs-ink);white-space:nowrap}
.brand-sub{font-size:11.5px;letter-spacing:.14em;color:var(--fs-ink-soft);text-transform:uppercase}
.brand-head-right{display:flex;align-items:center;gap:18px}
.head-search{position:relative;display:none}
.head-search input{
  width:210px;height:40px;padding:0 38px 0 14px;border:1px solid var(--fs-line);border-radius:999px;
  background:var(--fs-surface);font-size:14px;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.head-search input:focus{border-color:var(--fs-primary);box-shadow:0 0 0 3px rgba(244,85,43,.12);outline:none}
.head-search i{position:absolute;right:15px;top:50%;transform:translateY(-50%);color:var(--fs-ink-soft);font-size:13px}
.head-phone{display:none;align-items:center;gap:8px;font-size:14px;color:var(--fs-ink-soft)}
.head-phone strong{color:var(--fs-ink);font-size:15px;font-weight:700}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;
  border:1px solid var(--fs-line);border-radius:10px;background:var(--fs-surface);color:var(--fs-ink);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--fs-primary);color:var(--fs-primary)}
.channel-bar{display:none;border-top:1px solid var(--fs-line);background:var(--fs-surface)}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:48px}
.channel-nav{display:flex;align-items:center;gap:4px;height:100%}
.channel-nav a{
  position:relative;display:inline-flex;align-items:center;height:100%;padding:0 16px;
  font-size:15px;font-weight:500;color:var(--fs-ink-soft);white-space:nowrap;
}
.channel-nav a::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;height:3px;background:transparent;border-radius:3px 3px 0 0;
  transition:background-color .18s ease-out;
}
.channel-nav a:hover{color:var(--fs-ink)}
.channel-nav a:hover::after{background:var(--fs-line)}
.channel-nav a.active{color:var(--fs-ink);font-weight:700}
.channel-nav a.active::after{background:var(--fs-primary)}
.live-tag{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--fs-ink-soft)}
.live-dot{width:8px;height:8px;border-radius:50%;background:var(--fs-primary);box-shadow:0 0 0 4px rgba(244,85,43,.16)}

/* ---------- mobile drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(10,25,20,.55);opacity:0;pointer-events:none;transition:opacity .22s ease-out;z-index:80}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,350px);max-width:350px;background:var(--fs-surface);
  transform:translateX(102%);transition:transform .26s ease-out;z-index:90;display:flex;flex-direction:column;
  box-shadow:-18px 0 40px -24px rgba(10,25,20,.6);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--fs-line)}
.drawer-head span{font-weight:700;font-size:16px}
.drawer-close{width:38px;height:38px;border:1px solid var(--fs-line);border-radius:10px;background:var(--fs-surface);cursor:pointer;color:var(--fs-ink)}
.drawer-close:hover{border-color:var(--fs-primary);color:var(--fs-primary)}
.drawer-body{padding:14px 20px 20px;overflow-y:auto;flex:1}
.drawer-group-title{font-size:12px;letter-spacing:.12em;color:var(--fs-ink-soft);margin:14px 0 6px;text-transform:uppercase}
.drawer-body a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;padding:13px 4px;
  font-size:15.5px;color:var(--fs-ink);border-bottom:1px solid var(--fs-line);
}
.drawer-body a.drawer-link:hover{color:var(--fs-primary)}
.drawer-body a.drawer-link.active{color:var(--fs-primary);font-weight:700}
.drawer-foot{padding:18px 20px 24px;border-top:1px solid var(--fs-line)}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--fs-secondary-deep);overflow:hidden;color:#fff}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.34}
.hero-veil{position:absolute;inset:0;background:linear-gradient(102deg,rgba(10,44,37,.96) 0%,rgba(15,61,51,.88) 46%,rgba(15,61,51,.6) 100%)}
.hero-inner{position:relative;z-index:2;padding:56px 0 60px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:999px;
  background:rgba(216,241,60,.14);color:var(--fs-accent);font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.hero h1{
  margin:22px 0 0;font-size:34px;line-height:1.18;font-weight:800;letter-spacing:-.6px;color:#fff;
}
.hero-sub{margin-top:18px;font-size:16.5px;line-height:1.8;color:rgba(255,255,255,.82);max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:28px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.78)}
.hero-points i{color:var(--fs-accent);font-size:13px}
.hero-visual{position:relative;margin-top:36px}
.hero-visual img{width:100%;border-radius:var(--radius-card);object-fit:cover;aspect-ratio:16/11;box-shadow:0 30px 60px -34px rgba(0,0,0,.75)}
.hero-visual-card{
  position:absolute;left:18px;bottom:18px;right:18px;background:rgba(10,44,37,.86);
  border:1px solid var(--fs-line-dark);border-radius:12px;padding:14px 16px;display:flex;align-items:center;gap:14px;
}
.hero-visual-card .num{font-size:26px;font-weight:800;color:var(--fs-accent);line-height:1}
.hero-visual-card .txt{font-size:13px;color:rgba(255,255,255,.78);line-height:1.6}

/* ---------- kpi ---------- */
.kpi{background:var(--fs-secondary);color:#fff;border-top:1px solid var(--fs-line-dark)}
.kpi-grid{display:grid;grid-template-columns:1fr;gap:0}
.kpi-item{padding:26px 0;border-bottom:1px solid var(--fs-line-dark);display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.kpi-item:last-child{border-bottom:0}
.kpi-num{font-size:40px;font-weight:800;line-height:1;color:var(--fs-accent);letter-spacing:-1px}
.kpi-unit{font-size:13px;color:rgba(255,255,255,.65);align-self:center}
.kpi-text{font-size:13.5px;color:rgba(255,255,255,.7);flex:1 1 100%;line-height:1.7}

/* ---------- section head ---------- */
.sec-head{margin-bottom:34px;max-width:760px}
.sec-label{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--fs-primary-deep);font-weight:700}
.sec-label::before{content:"";width:4px;height:14px;background:var(--fs-primary);border-radius:2px}
.sec-head h2{margin-top:14px;font-size:27px;line-height:1.28;font-weight:700;letter-spacing:-.4px;color:var(--fs-ink)}
.sec-head p{margin-top:12px;font-size:15.5px;color:var(--fs-ink-soft);line-height:1.8}
.sec-dark .sec-head h2{color:#fff}
.sec-dark .sec-head p{color:rgba(255,255,255,.72)}
.sec-dark .sec-label{color:var(--fs-accent)}
.sec-dark .sec-label::before{background:var(--fs-accent)}
.sec-head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:34px}
.sec-head-row .sec-head{margin-bottom:0}

/* ---------- service matrix ---------- */
.matrix{display:grid;grid-template-columns:1fr;gap:20px}
.matrix-main{
  background:var(--fs-secondary-deep);border-radius:var(--radius-card);overflow:hidden;
  display:flex;flex-direction:column;border:1px solid var(--fs-secondary-deep);
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.matrix-main:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.matrix-main figure{position:relative;aspect-ratio:16/9;overflow:hidden}
.matrix-main figure img{width:100%;height:100%;object-fit:cover}
.matrix-main figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,44,37,0) 40%,rgba(10,44,37,.82) 100%)}
.matrix-main-body{padding:24px 24px 26px;color:#fff}
.matrix-main-body h3{font-size:21px;font-weight:700;line-height:1.4;color:#fff}
.matrix-main-body p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.76);line-height:1.8}
.matrix-main-body .link-arrow{margin-top:18px;color:var(--fs-accent)}
.matrix-main-body .link-arrow:hover{color:#fff}
.matrix-side{display:grid;grid-template-columns:1fr;gap:20px}
.matrix-item{
  background:var(--fs-surface);border:1px solid var(--fs-line);border-radius:var(--radius-card);
  padding:22px 22px 24px;transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.matrix-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--fs-primary)}
.matrix-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(15,61,51,.08);color:var(--fs-secondary);font-size:18px;margin-bottom:16px;
}
.matrix-item h3{font-size:18px;font-weight:700;line-height:1.45;color:var(--fs-ink)}
.matrix-item p{margin-top:10px;font-size:14.5px;color:var(--fs-ink-soft);line-height:1.75}

/* ---------- compare ---------- */
.compare{border:1px solid var(--fs-line);border-radius:var(--radius-card);background:var(--fs-surface);overflow:hidden}
.compare-head{display:none}
.compare-body{display:grid;grid-template-columns:1fr;gap:0}
.compare-col{padding:22px 20px}
.compare-col h3{font-size:16px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.compare-col.is-plain h3{color:var(--fs-ink-soft)}
.compare-col.is-ours{background:rgba(15,61,51,.04);border-top:1px solid var(--fs-line)}
.compare-col.is-ours h3{color:var(--fs-secondary)}
.compare-row{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;padding:13px 0;border-bottom:1px dashed var(--fs-line)}
.compare-row:last-child{border-bottom:0}
.compare-row .cr-name{font-size:14px;color:var(--fs-ink-soft);flex:0 0 auto;max-width:46%}
.compare-row .cr-val{font-size:14px;color:var(--fs-ink);text-align:right;line-height:1.6}
.compare-col.is-ours .compare-row{position:relative;padding-left:14px}
.compare-col.is-ours .compare-row::before{
  content:"";position:absolute;left:0;top:15px;bottom:15px;width:3px;border-radius:3px;background:var(--fs-primary);
}
.compare-col.is-ours .cr-val{font-weight:600;color:var(--fs-secondary)}
.compare-foot{
  border-top:1px solid var(--fs-line);padding:20px;display:flex;flex-wrap:wrap;align-items:center;
  justify-content:space-between;gap:14px;background:var(--fs-bg);
}
.compare-foot p{font-size:14.5px;color:var(--fs-ink-soft);max-width:640px}

/* ---------- channel cards ---------- */
.chan-grid{display:grid;grid-template-columns:1fr;gap:20px}
.chan-card{
  display:flex;flex-direction:column;background:var(--fs-surface);border:1px solid var(--fs-line);
  border-radius:var(--radius-card);overflow:hidden;height:100%;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.chan-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--fs-primary)}
.chan-card figure{aspect-ratio:16/10;overflow:hidden;background:var(--fs-line)}
.chan-card figure img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.chan-card:hover figure img{transform:scale(1.04)}
.chan-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.chan-body h3{font-size:19px;font-weight:700;line-height:1.42;margin-top:14px}
.chan-body p{margin-top:10px;font-size:14.5px;color:var(--fs-ink-soft);line-height:1.75;flex:1}
.chan-body .link-arrow{margin-top:16px}

/* ---------- news ---------- */
.news-grid{row-gap:22px}
.news-card{
  display:flex;flex-direction:column;height:100%;background:var(--fs-surface);border:1px solid var(--fs-line);
  border-radius:var(--radius-card);overflow:hidden;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--fs-primary)}
.news-card figure{aspect-ratio:16/10;overflow:hidden;background:var(--fs-line)}
.news-card figure img{width:100%;height:100%;object-fit:cover}
.news-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1}
.news-title{
  margin-top:12px;font-size:17px;font-weight:700;line-height:1.5;color:var(--fs-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-sum{
  margin-top:10px;font-size:14px;color:var(--fs-ink-soft);line-height:1.7;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--fs-line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--fs-ink-soft);
}
.news-meta .go{color:var(--fs-primary);font-weight:600}
.news-empty{
  border:1px dashed var(--fs-line);border-radius:var(--radius-card);background:var(--fs-surface);
  padding:60px 24px;text-align:center;color:var(--fs-ink-soft);font-size:15px;
}
.news-empty i{display:block;font-size:26px;color:var(--fs-line);margin-bottom:12px}

/* ---------- proof ---------- */
.proof-grid{display:grid;grid-template-columns:1fr;gap:20px}
.proof-card{
  background:rgba(255,255,255,.05);border:1px solid var(--fs-line-dark);border-radius:var(--radius-card);
  padding:24px 24px 26px;color:#fff;
}
.proof-card .quote{font-size:15px;line-height:1.85;color:rgba(255,255,255,.84)}
.proof-card .who{margin-top:18px;padding-top:16px;border-top:1px solid var(--fs-line-dark);display:flex;align-items:center;gap:12px}
.proof-avatar{
  width:38px;height:38px;border-radius:10px;background:rgba(216,241,60,.16);color:var(--fs-accent);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
}
.proof-who-txt strong{display:block;font-size:14.5px;color:#fff}
.proof-who-txt span{font-size:12.5px;color:rgba(255,255,255,.6)}
.partner-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.partner-row span{
  padding:8px 16px;border-radius:999px;border:1px solid var(--fs-line-dark);
  font-size:13px;color:rgba(255,255,255,.72);
}

/* ---------- faq ---------- */
.faq-wrap{background:var(--fs-surface);border:1px solid var(--fs-line);border-radius:var(--radius-card);padding:8px 22px}
.faq-item{border-bottom:1px solid var(--fs-line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 34px 20px 16px;position:relative;
  font-size:16px;font-weight:500;color:var(--fs-ink);line-height:1.6;
  transition:color .18s ease-out,padding-left .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:4px;border-radius:3px;background:transparent;
  transition:background-color .18s ease-out;
}
.faq-item summary::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;
  position:absolute;right:8px;top:22px;color:var(--fs-ink-soft);transition:transform .2s ease-out,color .2s ease-out;
}
.faq-item[open] summary{font-weight:700;color:var(--fs-secondary);padding-left:20px}
.faq-item[open] summary::before{background:var(--fs-primary)}
.faq-item[open] summary::after{content:"\f068";color:var(--fs-primary)}
.faq-answer{padding:0 34px 22px 20px;font-size:15px;color:var(--fs-ink-soft);line-height:1.85}
.faq-side-tips{margin-top:22px;display:grid;gap:12px}
.faq-side-tips li{
  display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--fs-ink-soft);
  background:var(--fs-surface);border:1px solid var(--fs-line);border-radius:12px;padding:14px 16px;
}
.faq-side-tips i{color:var(--fs-primary);margin-top:4px}

/* ---------- cta / form ---------- */
.cta-band{background:var(--fs-secondary-deep);color:#fff;position:relative;overflow:hidden}
.cta-band-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;opacity:.2}
.cta-band-inner{position:relative;z-index:2}
.promise-list{display:grid;gap:14px;margin-top:26px}
.promise-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.82);line-height:1.75}
.promise-list i{color:var(--fs-accent);margin-top:6px;font-size:13px}
.form-card{background:var(--fs-surface);border-radius:var(--radius-card);padding:26px 24px 28px;box-shadow:var(--shadow-1)}
.form-card h3{font-size:19px;font-weight:700;color:var(--fs-ink)}
.form-card .form-note{margin-top:8px;font-size:13.5px;color:var(--fs-ink-soft)}
.field{margin-top:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--fs-ink);margin-bottom:8px}
.field label .req{color:var(--fs-primary);margin-left:4px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--fs-line);border-radius:var(--radius-btn);
  background:#fff;font-size:15px;line-height:1.5;transition:border-color .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out;
}
.field textarea{min-height:104px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--fs-primary);background:#fffaf8;box-shadow:0 0 0 3px rgba(244,85,43,.14);
}
.field .hint{margin-top:7px;font-size:12.5px;color:var(--fs-ink-soft)}
.form-card .btn{margin-top:22px}
.form-foot{margin-top:14px;font-size:12.5px;color:var(--fs-ink-soft);text-align:center}

/* ---------- footer ---------- */
.site-footer{background:var(--fs-secondary-deep);color:rgba(255,255,255,.72);padding:56px 0 0}
.foot-grid{display:grid;grid-template-columns:1fr;gap:34px}
.foot-brand .brand-name{color:#fff}
.foot-brand .brand-sub{color:rgba(255,255,255,.5)}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:340px}
.foot-col h4{font-size:14px;font-weight:700;color:rgba(255,255,255,.9);margin-bottom:16px}
.foot-col ul{display:grid;gap:11px}
.foot-col a{font-size:14.5px;color:rgba(255,255,255,.68)}
.foot-col a:hover{color:var(--fs-accent)}
.foot-contact li{font-size:14.5px;color:rgba(255,255,255,.68);display:flex;gap:10px;align-items:flex-start;line-height:1.7}
.foot-contact i{color:var(--fs-accent);margin-top:5px;font-size:12.5px}
.foot-bottom{
  margin-top:44px;border-top:1px solid var(--fs-line-dark);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px)}
.reveal.is-in{opacity:1;transform:none;transition:opacity .5s ease-out,transform .5s ease-out}

/* ---------- responsive ---------- */
@media (min-width:640px){
  .kpi-grid{grid-template-columns:1fr 1fr}
  .kpi-item{padding:26px 22px;border-bottom:0;border-right:1px solid var(--fs-line-dark)}
  .kpi-item:nth-child(2n){border-right:0}
  .kpi-item:nth-child(n+3){border-top:1px solid var(--fs-line-dark)}
  .matrix-side{grid-template-columns:1fr 1fr}
  .chan-grid{grid-template-columns:1fr 1fr}
  .proof-grid{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .hero h1{font-size:40px}
  .sec{--sec-pad:72px}
}
@media (min-width:1024px){
  .sec{--sec-pad:96px}
  .grid-container{padding-left:32px;padding-right:32px}
  .head-search{display:block}
  .head-phone{display:flex}
  .nav-toggle{display:none}
  .channel-bar{display:block}
  .hero-inner{padding:84px 0 88px}
  .hero h1{font-size:50px;letter-spacing:-1.2px}
  .hero-sub{font-size:17px}
  .hero-visual{margin-top:0}
  .hero-visual img{aspect-ratio:4/3}
  .kpi-grid{grid-template-columns:repeat(4,1fr)}
  .kpi-item{border-right:1px solid var(--fs-line-dark);border-top:0 !important;border-bottom:0;padding:36px 26px}
  .kpi-item:last-child{border-right:0}
  .kpi-num{font-size:52px}
  .matrix{grid-template-columns:1.35fr 1fr;gap:24px}
  .compare-body{grid-template-columns:1fr 1fr}
  .compare-col{padding:30px 28px}
  .compare-col.is-ours{border-top:0;border-left:1px solid var(--fs-line)}
  .chan-grid{grid-template-columns:repeat(4,1fr)}
  .proof-grid{grid-template-columns:repeat(3,1fr)}
  .foot-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr}
  .sec-head h2{font-size:33px}
  .faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:44px;align-items:start}
}
@media (min-width:1440px){
  .grid-container{max-width:1320px}
  .sec{--sec-pad:108px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --fs-primary:#F4552B;
  --fs-primary-deep:#D33E18;
  --fs-secondary:#0F3D33;
  --fs-secondary-deep:#0A2C25;
  --fs-accent:#D8F13C;
  --fs-ink:#12161A;
  --fs-ink-soft:#4A525B;
  --fs-bg:#F7F5F1;
  --fs-surface:#FFFFFF;
  --fs-line:#E5E0D7;
  --fs-line-dark:rgba(255,255,255,.14);
  --fs-radius-card:14px;
  --fs-radius-btn:10px;
  --fs-radius-img:12px;
  --fs-shadow:0 1px 2px rgba(16,20,24,.06), 0 10px 24px -18px rgba(16,20,24,.3);
  --fs-shadow-hover:0 18px 36px -20px rgba(16,20,24,.4);
  --fs-ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--fs-ink);
  background:var(--fs-bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--fs-secondary);text-decoration:none;transition:color var(--fs-ease),border-color var(--fs-ease),background-color var(--fs-ease);}
a:hover{color:var(--fs-primary);}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em;}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--fs-primary);outline-offset:2px;}
.grid-container{max-width:1240px;margin:0 auto;padding-left:32px;padding-right:32px;width:100%;}
.grid-container.full{max-width:100%;padding-left:0;padding-right:0;}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--fs-radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:background-color var(--fs-ease),color var(--fs-ease),border-color var(--fs-ease),transform var(--fs-ease),box-shadow var(--fs-ease);
}
.btn i{transition:transform var(--fs-ease);}
.btn:hover i{transform:translateX(3px);}
.btn-primary{background:var(--fs-secondary);color:#fff;border-color:var(--fs-secondary);}
.btn-primary:hover{background:var(--fs-secondary-deep);color:#fff;border-color:var(--fs-secondary-deep);}
.btn-accent{background:var(--fs-accent);color:var(--fs-secondary-deep);}
.btn-accent:hover{background:#c8e52c;color:var(--fs-secondary-deep);}
.btn-ghost{background:transparent;color:var(--fs-secondary);border-color:var(--fs-line);}
.btn-ghost:hover{border-color:var(--fs-primary);color:var(--fs-primary);}
.btn-orange{background:var(--fs-primary);color:#fff;border-color:var(--fs-primary);}
.btn-orange:hover{background:var(--fs-primary-deep);color:#fff;border-color:var(--fs-primary-deep);}
.btn-sm{padding:9px 16px;font-size:14px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1.6;
  background:#FDEDE6;color:var(--fs-primary-deep);
}
.badge-dark{background:rgba(216,241,60,.16);color:var(--fs-accent);}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.section-head{margin-bottom:36px;}
.section-head .eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--fs-primary);font-weight:700;margin-bottom:10px;
}
.section-head h2{font-size:34px;line-height:1.25;}
.section-head p{color:var(--fs-ink-soft);font-size:16px;margin:12px 0 0;max-width:720px;}
.divider{height:1px;background:var(--fs-line);border:0;margin:0;}

/* ---------- 站点头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,241,.96);
  border-bottom:1px solid var(--fs-line);
  transition:box-shadow var(--fs-ease);
}
.site-header.is-stuck{box-shadow:0 8px 24px -18px rgba(16,20,24,.5);}
.brand-bar{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:12px;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--fs-secondary);color:var(--fs-accent);
  display:flex;align-items:center;justify-content:center;font-size:16px;
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:18px;font-weight:800;color:var(--fs-ink);letter-spacing:-.01em;}
.brand-sub{font-size:10.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--fs-ink-soft);}
.brand:hover .brand-name{color:var(--fs-primary);}
.brand-head-right{display:flex;align-items:center;gap:18px;}
.head-search{
  position:relative;display:flex;align-items:center;
  border:1px solid var(--fs-line);background:#fff;border-radius:999px;
  padding:0 14px;height:40px;min-width:230px;
  transition:border-color var(--fs-ease),box-shadow var(--fs-ease);
}
.head-search:focus-within{border-color:var(--fs-primary);box-shadow:0 0 0 3px rgba(244,85,43,.12);}
.head-search input{
  border:0;outline:0;background:transparent;width:100%;height:100%;
  font-size:14px;color:var(--fs-ink);
}
.head-search input::placeholder{color:#9AA1A9;}
.head-search i{color:var(--fs-ink-soft);font-size:14px;}
.head-phone{font-size:13.5px;color:var(--fs-ink-soft);white-space:nowrap;}
.head-phone i{color:var(--fs-primary);margin-right:6px;}
.head-phone strong{color:var(--fs-ink);font-weight:600;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--fs-line);background:#fff;color:var(--fs-ink);
  font-size:17px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--fs-primary);color:var(--fs-primary);}
.channel-bar{background:#fff;border-top:1px solid var(--fs-line);}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:52px;}
.channel-nav{display:flex;align-items:center;gap:30px;}
.channel-nav a{
  position:relative;font-size:15px;font-weight:600;color:var(--fs-ink-soft);
  padding:15px 0;white-space:nowrap;
}
.channel-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:8px;height:3px;border-radius:2px;
  background:var(--fs-primary);transform:scaleX(0);transform-origin:left;transition:transform var(--fs-ease);
}
.channel-nav a:hover{color:var(--fs-ink);}
.channel-nav a:hover::after{transform:scaleX(1);background:var(--fs-line);}
.channel-nav a.active{color:var(--fs-ink);}
.channel-nav a.active::after{transform:scaleX(1);background:var(--fs-primary);}
.live-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--fs-ink-soft);white-space:nowrap;
}
.live-dot{
  width:8px;height:8px;border-radius:50%;background:var(--fs-primary);
  box-shadow:0 0 0 4px rgba(244,85,43,.16);
}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  background-image:linear-gradient(90deg,rgba(10,44,37,.94) 0%,rgba(10,44,37,.78) 52%,rgba(10,44,37,.52) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  color:#fff;padding:56px 0 60px;
}
.article-hero .crumb{margin-bottom:22px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);}
.crumb a{color:rgba(255,255,255,.72);}
.crumb a:hover{color:var(--fs-accent);}
.crumb .sep{color:rgba(255,255,255,.35);}
.crumb .current{color:#fff;font-weight:600;}
.article-hero .badge{background:rgba(216,241,60,.16);color:var(--fs-accent);}
.article-hero h1{
  font-size:44px;line-height:1.18;font-weight:800;letter-spacing:-.02em;
  margin:18px 0 0;max-width:900px;color:#fff;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:0;
  margin-top:24px;border-top:1px solid var(--fs-line-dark);padding-top:18px;
}
.article-meta .meta-item{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;color:rgba(255,255,255,.78);
  padding:0 18px;border-left:1px solid var(--fs-line-dark);
}
.article-meta .meta-item:first-child{padding-left:0;border-left:0;}
.article-meta .meta-item i{color:var(--fs-accent);}

/* ---------- 文章主体 ---------- */
.article-wrap{background:var(--fs-bg);padding:56px 0 88px;}
.article-panel{
  background:var(--fs-surface);border:1px solid var(--fs-line);
  border-radius:var(--fs-radius-card);box-shadow:var(--fs-shadow);
  padding:40px 44px 48px;
}
.article-body{max-width:760px;}
.article-body h2{
  position:relative;font-size:25px;line-height:1.35;font-weight:700;
  margin:38px 0 16px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  background:var(--fs-primary);border-radius:2px;
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{font-size:20px;font-weight:600;margin:26px 0 12px;}
.article-body h4{font-size:17px;font-weight:600;margin:20px 0 10px;color:var(--fs-ink-soft);}
.article-body p{font-size:16.5px;line-height:1.85;color:#252B31;margin:0 0 1.1em;}
.article-body strong{color:var(--fs-ink);font-weight:700;}
.article-body a{color:var(--fs-primary-deep);border-bottom:1px solid rgba(244,85,43,.35);}
.article-body a:hover{color:var(--fs-primary);border-bottom-color:var(--fs-primary);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:4px;}
.article-body ul li,.article-body ol li{
  position:relative;padding-left:24px;margin-bottom:9px;font-size:16.5px;line-height:1.8;color:#252B31;
}
.article-body ul li::before{
  content:"";position:absolute;left:6px;top:12px;width:7px;height:7px;border-radius:2px;
  background:var(--fs-primary);
}
.article-body ol{counter-reset:fsol;}
.article-body ol li{counter-increment:fsol;padding-left:32px;}
.article-body ol li::before{
  content:counter(fsol);position:absolute;left:0;top:2px;
  width:22px;height:22px;border-radius:50%;
  background:#FDEDE6;color:var(--fs-primary-deep);
  font-size:12.5px;font-weight:700;display:flex;align-items:center;justify-content:center;
  line-height:1;
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;
  background:#FAF8F4;border-left:4px solid var(--fs-primary);
  border-radius:0 10px 10px 0;color:var(--fs-ink-soft);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  width:100%;border-radius:var(--fs-radius-img);margin:22px 0;
  background:#F1EEE8;
}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--fs-ink-soft);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;
  border:1px solid var(--fs-line);border-radius:10px;overflow:hidden;
}
.article-body thead th{
  background:#F2EFE9;color:var(--fs-ink);font-weight:700;text-align:left;
  padding:12px 14px;border-bottom:1px solid var(--fs-line);
}
.article-body tbody td{padding:12px 14px;border-bottom:1px solid var(--fs-line);color:#252B31;}
.article-body tbody tr:nth-child(even){background:#FBF9F6;}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body code{
  background:#F2EFE9;border-radius:6px;padding:2px 6px;font-size:14px;color:var(--fs-secondary-deep);
}
.article-body hr{border:0;height:1px;background:var(--fs-line);margin:32px 0;}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 24px;
  border:1px dashed var(--fs-line);border-radius:var(--fs-radius-card);background:#FBF9F6;
}
.empty-state i{font-size:34px;color:var(--fs-primary);}
.empty-state h2{font-size:24px;margin:16px 0 10px;}
.empty-state p{color:var(--fs-ink-soft);max-width:520px;margin:0 auto 22px;}

/* ---------- 侧栏 ---------- */
.side-card{
  background:var(--fs-surface);border:1px solid var(--fs-line);
  border-radius:var(--fs-radius-card);box-shadow:var(--fs-shadow);
  padding:22px 22px 24px;margin-bottom:22px;
}
.side-card h3{
  font-size:15px;font-weight:700;margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-card h3 i{color:var(--fs-primary);font-size:14px;}
.toc-sticky{position:sticky;top:150px;}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;font-size:14px;color:var(--fs-ink-soft);
  padding:8px 10px;border-left:2px solid var(--fs-line);
  border-radius:0 8px 8px 0;line-height:1.5;
  transition:background-color var(--fs-ease),color var(--fs-ease),border-color var(--fs-ease);
}
.toc-list a:hover,.toc-list a.active{
  color:var(--fs-primary-deep);border-left-color:var(--fs-primary);background:#FDF6F2;
}
.toc-list a.sub{padding-left:22px;font-size:13.5px;}
.toc-empty{font-size:13.5px;color:var(--fs-ink-soft);line-height:1.7;}
.mini-post{display:flex;gap:12px;padding:12px 0;border-top:1px solid var(--fs-line);}
.mini-post:first-of-type{border-top:0;padding-top:0;}
.mini-post img{width:64px;height:52px;object-fit:cover;border-radius:9px;flex:0 0 auto;}
.mini-post .mp-body{min-width:0;}
.mini-post .mp-title{
  font-size:14.5px;font-weight:600;line-height:1.45;color:var(--fs-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mini-post:hover .mp-title{color:var(--fs-primary);}
.mini-post .mp-meta{font-size:12.5px;color:var(--fs-ink-soft);margin-top:4px;}
.side-cta{
  background:var(--fs-secondary);color:#fff;border:0;
}
.side-cta h3{color:#fff;}
.side-cta h3 i{color:var(--fs-accent);}
.side-cta p{font-size:13.5px;color:rgba(255,255,255,.76);line-height:1.7;margin-bottom:16px;}
.side-cta .btn{width:100%;}

/* ---------- 作者卡 / 相关推荐 ---------- */
.author-card{
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  margin-top:36px;padding:22px 24px;background:#FAF8F4;
  border:1px solid var(--fs-line);border-radius:var(--fs-radius-card);
}
.author-card .av{
  width:52px;height:52px;border-radius:14px;background:var(--fs-secondary);color:var(--fs-accent);
  display:flex;align-items:center;justify-content:center;font-size:18px;flex:0 0 auto;
}
.author-card .ac-body{flex:1 1 260px;min-width:0;}
.author-card .ac-name{font-size:15.5px;font-weight:700;}
.author-card .ac-desc{font-size:13.5px;color:var(--fs-ink-soft);line-height:1.6;margin-top:4px;}
.related-block{margin-top:64px;}
.related-block > h2{font-size:24px;margin-bottom:22px;}
.related-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--fs-surface);border:1px solid var(--fs-line);
  border-radius:var(--fs-radius-card);box-shadow:var(--fs-shadow);overflow:hidden;
  transition:transform var(--fs-ease),box-shadow var(--fs-ease),border-color var(--fs-ease);
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--fs-shadow-hover);border-color:var(--fs-primary);}
.related-card .rc-img{aspect-ratio:16/10;overflow:hidden;background:#F1EEE8;}
.related-card .rc-img img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease-out;}
.related-card:hover .rc-img img{transform:scale(1.04);}
.related-card .rc-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.related-card .rc-title{
  font-size:17px;font-weight:700;line-height:1.45;color:var(--fs-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-card:hover .rc-title{color:var(--fs-primary);}
.related-card .rc-desc{
  font-size:14px;color:var(--fs-ink-soft);line-height:1.7;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-card .rc-more{font-size:14px;font-weight:600;color:var(--fs-primary-deep);display:inline-flex;align-items:center;gap:6px;}
.related-card:hover .rc-more i{transform:translateX(3px);}
.related-card .rc-more i{transition:transform var(--fs-ease);}

.back-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:36px;}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(90deg,rgba(10,44,37,.97),rgba(15,61,51,.92)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;color:#fff;
}
.cta-band .inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:64px 0;flex-wrap:wrap;}
.cta-band h2{font-size:32px;line-height:1.25;color:#fff;max-width:640px;}
.cta-band p{color:rgba(255,255,255,.78);font-size:15.5px;margin:12px 0 0;max-width:620px;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--fs-secondary-deep);color:rgba(255,255,255,.72);padding:72px 0 26px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.site-footer .brand-name{color:#fff;}
.site-footer .brand-sub{color:rgba(255,255,255,.5);}
.site-footer .brand-mark{background:var(--fs-accent);color:var(--fs-secondary-deep);}
.site-footer .foot-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin-top:18px;max-width:340px;}
.foot-col h4{font-size:14px;color:rgba(255,255,255,.55);font-weight:600;margin-bottom:16px;letter-spacing:.02em;}
.foot-col ul li{margin-bottom:10px;}
.foot-col a{font-size:15px;color:rgba(255,255,255,.82);}
.foot-col a:hover{color:var(--fs-accent);}
.foot-contact li{font-size:14px;color:rgba(255,255,255,.7);line-height:1.7;display:flex;gap:10px;margin-bottom:10px;}
.foot-contact i{color:var(--fs-accent);font-size:13px;margin-top:5px;}
.foot-bottom{
  margin-top:46px;padding-top:22px;border-top:1px solid var(--fs-line-dark);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .grid-container{padding-left:28px;padding-right:28px;}
  .section{padding:72px 0;}
  .article-hero{padding:44px 0 48px;}
  .article-hero h1{font-size:34px;}
  .article-panel{padding:32px 28px 38px;}
  .toc-sticky{position:static;top:auto;}
  .head-search{min-width:180px;}
  .head-phone{display:none;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:860px){
  .channel-bar{display:none;background:#fff;}
  .site-header.nav-open .channel-bar{display:block;}
  .site-header.nav-open .channel-inner{flex-direction:column;align-items:stretch;height:auto;padding:8px 0 18px;}
  .site-header.nav-open .channel-nav{flex-direction:column;align-items:stretch;gap:0;}
  .site-header.nav-open .channel-nav a{
    padding:14px 4px;border-bottom:1px solid var(--fs-line);font-size:16px;
  }
  .site-header.nav-open .channel-nav a::after{display:none;}
  .site-header.nav-open .channel-nav a.active{color:var(--fs-primary);}
  .site-header.nav-open .live-tag{margin-top:14px;white-space:normal;}
}
@media screen and (max-width:639px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:26px;}
  .brand-bar{height:64px;gap:12px;}
  .brand-sub{display:none;}
  .brand-name{font-size:16.5px;}
  .head-search{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .brand-head-right{gap:10px;}
  .brand-head-right .btn{display:none;}
  .article-hero{padding:34px 0 40px;}
  .article-hero h1{font-size:26px;line-height:1.28;}
  .article-meta .meta-item{padding:0 12px;font-size:13px;}
  .article-meta .meta-item:first-child{padding-left:0;}
  .article-panel{padding:24px 18px 30px;border-radius:12px;}
  .article-body h2{font-size:21px;}
  .article-body p,.article-body ul li,.article-body ol li{font-size:16px;}
  .cta-band .inner{padding:48px 0;}
  .cta-band h2{font-size:24px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{flex:1 1 100%;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;gap:8px;}
  .back-actions .btn{flex:1 1 100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --fs-primary:#F4552B;
  --fs-primary-deep:#D33E18;
  --fs-secondary:#0F3D33;
  --fs-secondary-deep:#0A2C25;
  --fs-accent:#D8F13C;
  --fs-ink:#12161A;
  --fs-ink-soft:#4A525B;
  --fs-bg:#F7F5F1;
  --fs-surface:#FFFFFF;
  --fs-line:#E5E0D7;
  --fs-line-dark:rgba(255,255,255,.14);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,20,24,.06), 0 10px 24px -18px rgba(16,20,24,.3);
  --shadow-2:0 18px 36px -20px rgba(16,20,24,.4);
  --ease:180ms ease-out;
}

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

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--fs-ink);
  background:var(--fs-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--fs-secondary);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
a:hover{color:var(--fs-primary);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
input,select,textarea{font-family:inherit;font-size:16px;}

:focus-visible{outline:2px solid var(--fs-primary);outline-offset:2px;}

.grid-container{max-width:1240px;padding-left:32px;padding-right:32px;margin-left:auto;margin-right:auto;}
@media screen and (min-width:1440px){.grid-container{max-width:1320px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn i{transition:transform var(--ease);}
.btn:hover i{transform:translateX(3px);}
.btn-primary{background:var(--fs-secondary);color:#fff;border-color:var(--fs-secondary);}
.btn-primary:hover,.btn-primary:focus{background:var(--fs-secondary-deep);border-color:var(--fs-secondary-deep);color:#fff;}
.btn-accent{background:var(--fs-accent);color:var(--fs-secondary-deep);border-color:var(--fs-accent);font-weight:700;}
.btn-accent:hover,.btn-accent:focus{background:#c8e22c;border-color:#c8e22c;color:var(--fs-secondary-deep);}
.btn-outline{background:transparent;color:var(--fs-ink);border-color:var(--fs-line);}
.btn-outline:hover,.btn-outline:focus{color:var(--fs-primary);border-color:var(--fs-primary);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.btn-outline-light:hover,.btn-outline-light:focus{color:var(--fs-accent);border-color:var(--fs-accent);}
.btn-block{width:100%;}

/* ---------- 徽章 / 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:#FDEBE4;color:var(--fs-primary-deep);
}
.tag-dark{background:rgba(255,255,255,.1);color:var(--fs-accent);}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--fs-primary);margin-bottom:14px;
}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:var(--fs-bg);
  border-bottom:1px solid var(--fs-line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 26px -22px rgba(16,20,24,.5);}

.brand-bar{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:72px;padding:10px 0;
}
.brand{display:inline-flex;align-items:center;gap:12px;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--fs-primary);color:#fff;font-size:17px;
  box-shadow:0 8px 18px -12px rgba(244,85,43,.9);
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:19px;font-weight:800;color:var(--fs-ink);letter-spacing:-.02em;}
.brand-sub{font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:var(--fs-ink-soft);}
.brand:hover .brand-name{color:var(--fs-secondary);}

.brand-head-right{display:flex;align-items:center;gap:16px;}
.head-search{position:relative;display:flex;align-items:center;}
.head-search input{
  width:210px;padding:10px 36px 10px 14px;border-radius:var(--radius-pill);
  border:1px solid var(--fs-line);background:var(--fs-surface);color:var(--fs-ink);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.head-search input::placeholder{color:#9AA2AA;}
.head-search input:focus{border-color:var(--fs-primary);box-shadow:0 0 0 4px rgba(244,85,43,.12);outline:none;}
.head-search i{position:absolute;right:14px;font-size:13px;color:var(--fs-ink-soft);pointer-events:none;}
.head-phone{font-size:13px;color:var(--fs-ink-soft);display:inline-flex;align-items:center;gap:7px;white-space:nowrap;}
.head-phone i{color:var(--fs-primary);}
.head-phone strong{color:var(--fs-ink);font-weight:700;}

.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--radius-btn);
  background:var(--fs-surface);border:1px solid var(--fs-line);color:var(--fs-ink);
  font-size:17px;cursor:pointer;transition:border-color var(--ease),color var(--ease);
}
.nav-toggle:hover{border-color:var(--fs-primary);color:var(--fs-primary);}

.channel-bar{border-top:1px solid var(--fs-line);background:var(--fs-surface);}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;}
.channel-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.channel-nav a{
  position:relative;display:inline-block;
  padding:14px 14px 12px;font-size:15px;font-weight:600;color:var(--fs-ink-soft);
  border-bottom:3px solid transparent;
}
.channel-nav a:hover{color:var(--fs-ink);border-bottom-color:var(--fs-line);}
.channel-nav a.active{color:var(--fs-ink);border-bottom-color:var(--fs-primary);}
.live-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;color:var(--fs-ink-soft);white-space:nowrap;
}
.live-dot{
  width:8px;height:8px;border-radius:50%;background:var(--fs-primary);
  box-shadow:0 0 0 4px rgba(244,85,43,.16);
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--fs-ink-soft);padding:18px 0 0;
}
.breadcrumb a{color:var(--fs-ink-soft);}
.breadcrumb a:hover{color:var(--fs-primary);}
.breadcrumb span.sep{color:#B9B2A6;}
.breadcrumb .current{color:var(--fs-ink);font-weight:600;}

/* ---------- 英雄区 ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(10,44,37,.94) 0%,rgba(15,61,51,.82) 48%,rgba(15,61,51,.58) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  color:#fff;
  border-bottom:1px solid var(--fs-line);
}
.cat-hero .grid-container{position:relative;z-index:2;}
.cat-hero .breadcrumb{color:rgba(255,255,255,.72);}
.cat-hero .breadcrumb a{color:rgba(255,255,255,.72);}
.cat-hero .breadcrumb a:hover{color:var(--fs-accent);}
.cat-hero .breadcrumb .current{color:#fff;}
.cat-hero .breadcrumb span.sep{color:rgba(255,255,255,.4);}
.hero-body{
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);
  gap:48px;align-items:end;padding:34px 0 52px;
}
.cat-hero h1{
  font-size:clamp(30px,4vw,50px);font-weight:800;line-height:1.14;letter-spacing:-.02em;
  margin-bottom:18px;color:#fff;
}
.cat-hero h1 em{font-style:normal;color:var(--fs-accent);}
.hero-lead{font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.86);max-width:680px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-side{
  background:rgba(255,255,255,.06);
  border:1px solid var(--fs-line-dark);
  border-radius:var(--radius-card);
  padding:24px;
}
.hero-side h3{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.01em;}
.hero-side ul li{
  display:flex;gap:10px;align-items:flex-start;
  padding:10px 0;border-bottom:1px solid var(--fs-line-dark);
  font-size:14px;color:rgba(255,255,255,.82);line-height:1.65;
}
.hero-side ul li:last-child{border-bottom:0;padding-bottom:0;}
.hero-side ul li i{color:var(--fs-accent);font-size:12px;margin-top:7px;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.section-dark{background:var(--fs-secondary);color:#fff;}
.section-alt{background:var(--fs-surface);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:clamp(25px,3vw,34px);font-weight:700;letter-spacing:-.02em;}
.section-head p{margin-top:14px;color:var(--fs-ink-soft);font-size:16px;line-height:1.8;}
.section-head.has-bar{padding-left:18px;position:relative;}
.section-head.has-bar::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  background:var(--fs-primary);border-radius:2px;
}
.section-dark .section-head h2{color:#fff;}
.section-dark .section-head p{color:rgba(255,255,255,.76);}
.head-row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.head-row .more-link{
  font-size:14px;font-weight:600;color:var(--fs-primary);
  display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
}
.head-row .more-link:hover{color:var(--fs-primary-deep);gap:11px;}

/* ---------- 数据条 ---------- */
.metric-strip{
  background:var(--fs-surface);
  border-bottom:1px solid var(--fs-line);
}
.metric-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
}
.metric-item{
  padding:34px 26px;
  border-left:1px solid var(--fs-line);
}
.metric-item:first-child{border-left:0;padding-left:0;}
.metric-num{
  font-size:clamp(30px,3.4vw,46px);font-weight:800;line-height:1;letter-spacing:-.03em;
  color:var(--fs-primary);
}
.metric-num small{font-size:15px;font-weight:700;margin-left:4px;color:var(--fs-ink-soft);letter-spacing:0;}
.metric-label{margin-top:12px;font-size:14.5px;font-weight:600;color:var(--fs-ink);}
.metric-desc{margin-top:6px;font-size:13px;color:var(--fs-ink-soft);line-height:1.65;}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:8px;}
.timeline::before{
  content:"";position:absolute;left:125px;top:14px;bottom:14px;width:1px;background:var(--fs-line);
}
.tl-item{
  display:grid;grid-template-columns:104px minmax(0,1fr);
  gap:44px;position:relative;padding-bottom:26px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-date{
  text-align:right;padding-top:20px;
}
.tl-date strong{display:block;font-size:15px;font-weight:800;color:var(--fs-secondary);}
.tl-date span{display:block;font-size:12.5px;color:var(--fs-ink-soft);letter-spacing:.02em;margin-top:4px;}
.tl-card{
  position:relative;
  background:var(--fs-surface);
  border:1px solid var(--fs-line);
  border-radius:var(--radius-card);
  padding:24px 26px;
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.tl-card::before{
  content:"";position:absolute;left:-30px;top:34px;width:13px;height:13px;border-radius:50%;
  background:var(--fs-surface);border:3px solid var(--fs-primary);
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--fs-primary);}
.tl-card h3{font-size:19px;font-weight:700;margin-bottom:10px;}
.tl-card p{color:var(--fs-ink-soft);font-size:15px;line-height:1.78;}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.tl-link{
  display:inline-flex;align-items:center;gap:7px;margin-top:16px;
  font-size:14px;font-weight:600;color:var(--fs-primary);
}
.tl-link:hover{gap:11px;color:var(--fs-primary-deep);}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}
.ev-card{
  background:var(--fs-surface);border:1px solid var(--fs-line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  box-shadow:var(--shadow-1);
}
.ev-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--fs-primary);}
.ev-thumb{aspect-ratio:16/10;overflow:hidden;background:#EFEBE4;}
.ev-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.ev-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.ev-body h3{font-size:20px;}
.ev-body p{color:var(--fs-ink-soft);font-size:15px;line-height:1.78;}
.ev-points{margin-top:2px;display:flex;flex-direction:column;gap:8px;}
.ev-points li{display:flex;gap:9px;font-size:14px;color:var(--fs-ink-soft);line-height:1.65;}
.ev-points li i{color:var(--fs-primary);font-size:12px;margin-top:6px;}
.ev-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--fs-line);display:flex;align-items:center;justify-content:space-between;gap:12px;}
.ev-foot a{font-size:14px;font-weight:600;color:var(--fs-primary);display:inline-flex;align-items:center;gap:7px;}
.ev-foot a:hover{gap:11px;}
.ev-foot span{font-size:13px;color:var(--fs-ink-soft);}

/* ---------- 保障区 ---------- */
.assure{
  display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
  gap:52px;align-items:center;
}
.assure-media{position:relative;}
.assure-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);}
.assure-media::after{
  content:"";position:absolute;left:-16px;bottom:-16px;width:120px;height:120px;
  border-left:4px solid var(--fs-primary);border-bottom:4px solid var(--fs-primary);
  border-radius:0 0 0 12px;pointer-events:none;
}
.assure-list{display:grid;gap:0;margin-top:26px;border-top:1px solid var(--fs-line);}
.assure-list li{
  display:flex;gap:16px;align-items:flex-start;
  padding:18px 0;border-bottom:1px solid var(--fs-line);
}
.assure-list .no{
  flex:0 0 auto;width:32px;height:32px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  background:#FDEBE4;color:var(--fs-primary-deep);
  font-size:13px;font-weight:800;
}
.assure-list h4{font-size:16px;font-weight:700;margin-bottom:5px;}
.assure-list p{font-size:14.5px;color:var(--fs-ink-soft);line-height:1.72;}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;margin-top:8px;}
.flow-item{
  background:rgba(255,255,255,.06);
  border:1px solid var(--fs-line-dark);
  border-radius:var(--radius-card);
  padding:26px 22px;
  transition:background-color var(--ease),border-color var(--ease),transform var(--ease);
}
.flow-item:hover{background:rgba(255,255,255,.1);border-color:var(--fs-accent);transform:translateY(-3px);}
.flow-num{
  font-size:34px;font-weight:800;line-height:1;color:var(--fs-accent);letter-spacing:-.03em;
}
.flow-item h3{font-size:17px;margin:14px 0 10px;color:#fff;}
.flow-item p{font-size:14px;color:rgba(255,255,255,.74);line-height:1.72;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);gap:52px;align-items:start;}
.accordion{border:0;background:transparent;margin:0;}
.accordion-item{border:0;border-bottom:1px solid var(--fs-line);background:transparent;}
.accordion-item:first-child{border-top:1px solid var(--fs-line);}
.accordion-title{
  display:block;padding:22px 52px 22px 18px;
  background:transparent;border:0;
  font-size:16.5px;font-weight:600;color:var(--fs-ink);line-height:1.6;
  transition:color var(--ease),box-shadow var(--ease),padding-left var(--ease);
}
.accordion-title:hover{color:var(--fs-primary);background:transparent;}
.accordion-title::before{
  content:"\f067";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:18px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--fs-ink-soft);
  border:0;width:auto;height:auto;margin:0;
  transition:color var(--ease);
}
.accordion-item.is-active .accordion-title{
  color:var(--fs-ink);font-weight:800;
  box-shadow:inset 4px 0 0 var(--fs-primary);
  padding-left:22px;
}
.accordion-item.is-active .accordion-title::before{content:"\f068";color:var(--fs-primary);}
.accordion-content{
  padding:0 52px 24px 22px;background:transparent;border:0;
  color:var(--fs-ink-soft);font-size:15px;line-height:1.82;
}

/* ---------- 转化表单 ---------- */
.cta-section{
  background:var(--fs-secondary-deep);color:#fff;position:relative;overflow:hidden;
}
.cta-section::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(10,44,37,.96) 0%,rgba(10,44,37,.9) 55%,rgba(10,44,37,.72) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;opacity:.9;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center;}
.cta-copy h2{font-size:clamp(26px,3vw,36px);color:#fff;letter-spacing:-.02em;}
.cta-copy p{margin-top:16px;color:rgba(255,255,255,.78);font-size:16px;line-height:1.85;max-width:560px;}
.promise-list{margin-top:28px;display:grid;gap:12px;}
.promise-list li{display:flex;gap:11px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.84);}
.promise-list li i{color:var(--fs-accent);margin-top:6px;font-size:12px;}

.form-card{
  background:var(--fs-surface);border-radius:var(--radius-card);
  padding:30px;box-shadow:0 26px 60px -34px rgba(0,0,0,.6);
  border:1px solid rgba(255,255,255,.16);
}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .form-note{font-size:13.5px;color:var(--fs-ink-soft);margin-bottom:22px;line-height:1.65;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--fs-ink);margin-bottom:7px;}
.field label .req{color:var(--fs-primary);margin-left:3px;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius-btn);
  border:1px solid var(--fs-line);background:var(--fs-bg);color:var(--fs-ink);
  transition:border-color var(--ease),box-shadow var(--ease),background-color var(--ease);
}
.field textarea{min-height:100px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--fs-primary);background:#FFF7F3;
  box-shadow:0 0 0 4px rgba(244,85,43,.12);
}
.form-tip{font-size:12.5px;color:var(--fs-ink-soft);margin-top:14px;line-height:1.6;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--fs-secondary-deep);color:#fff;padding-top:72px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px;}
.foot-brand .brand-name{color:#fff;}
.foot-brand .brand-sub{color:rgba(255,255,255,.5);}
.foot-brand p{margin-top:18px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.68);max-width:340px;}
.foot-col h4{font-size:14px;font-weight:700;color:rgba(255,255,255,.55);letter-spacing:.04em;margin-bottom:18px;}
.foot-col ul{display:grid;gap:11px;}
.foot-col ul li a{font-size:14.5px;color:rgba(255,255,255,.86);}
.foot-col ul li a:hover{color:var(--fs-accent);}
.foot-contact li{font-size:14px;color:rgba(255,255,255,.78);display:flex;gap:9px;line-height:1.65;}
.foot-contact li i{color:var(--fs-accent);margin-top:6px;font-size:12px;}
.foot-bottom{
  border-top:1px solid var(--fs-line-dark);
  padding:22px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .head-search input{width:170px;}
  .metric-item{padding:30px 18px;}
  .metric-item:first-child{padding-left:0;}
}

@media screen and (max-width:1023px){
  .grid-container{padding-left:28px;padding-right:28px;}
  .head-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .channel-bar{display:none;border-top:1px solid var(--fs-line);}
  .channel-bar.open{display:block;}
  .channel-inner{flex-direction:column;align-items:stretch;gap:0;}
  .channel-nav{flex-direction:column;align-items:stretch;gap:0;padding:8px 0;}
  .channel-nav a{padding:14px 2px;border-bottom:1px solid var(--fs-line);border-bottom-width:1px;}
  .channel-nav a.active{color:var(--fs-primary);border-bottom-color:var(--fs-line);}
  .live-tag{padding:14px 2px 18px;white-space:normal;}
  .hero-body{grid-template-columns:1fr;gap:32px;align-items:start;padding:26px 0 46px;}
  .section{padding:72px 0;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metric-item:nth-child(3){border-left:0;padding-left:0;}
  .card-grid{grid-template-columns:1fr;}
  .assure{grid-template-columns:1fr;gap:36px;}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .cta-inner{grid-template-columns:1fr;gap:36px;}
  .timeline::before{left:88px;}
  .tl-item{grid-template-columns:76px minmax(0,1fr);gap:32px;}
  .tl-card::before{left:-24px;}
}

@media screen and (max-width:640px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .brand-head-right{gap:10px;}
  .head-phone{display:none;}
  .brand-name{font-size:17px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .section{padding:56px 0;}
  .section-sm{padding:48px 0;}
  .metric-grid{grid-template-columns:1fr;}
  .metric-item{border-left:0;padding:24px 0;border-bottom:1px solid var(--fs-line);}
  .metric-item:last-child{border-bottom:0;}
  .timeline{padding-left:0;}
  .timeline::before{left:9px;top:10px;bottom:10px;}
  .tl-item{grid-template-columns:1fr;gap:0;padding-bottom:22px;padding-left:34px;}
  .tl-date{text-align:left;padding:0 0 10px;}
  .tl-date strong{display:inline;}
  .tl-date span{display:inline;margin-left:8px;}
  .tl-card::before{left:-32px;top:14px;width:12px;height:12px;}
  .flow-grid{grid-template-columns:1fr;}
  .assure-media::after{display:none;}
  .accordion-content{padding-right:20px;}
  .foot-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .cta-copy p{font-size:15px;}
  .form-card{padding:22px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* roulang page: category2 */
/* ================= 设计变量 ================= */
:root{
  --fs-primary:#F4552B;
  --fs-primary-deep:#D33E18;
  --fs-secondary:#0F3D33;
  --fs-secondary-deep:#0A2C25;
  --fs-accent:#D8F13C;
  --fs-ink:#12161A;
  --fs-ink-soft:#4A525B;
  --fs-bg:#F7F5F1;
  --fs-surface:#FFFFFF;
  --fs-line:#E5E0D7;
  --fs-line-dark:rgba(255,255,255,.14);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(16,20,24,.06),0 10px 24px -18px rgba(16,20,24,.3);
  --sh-2:0 18px 36px -20px rgba(16,20,24,.4);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",sans-serif;
}

/* ================= 基础 reset ================= */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.75;
  color:var(--fs-ink);
  background:var(--fs-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,h5{font-family:var(--font-cn);color:var(--fs-ink);margin:0;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--fs-primary);outline-offset:2px}
::selection{background:rgba(244,85,43,.2)}

/* ================= 容器 ================= */
.grid-container{max-width:1240px;padding-left:32px;padding-right:32px}
@media screen and (max-width:1023px){
  .grid-container{padding-left:28px;padding-right:28px}
}
@media screen and (max-width:519px){
  .grid-container{padding-left:20px;padding-right:20px}
}
@media screen and (min-width:1440px){
  .grid-container{max-width:1320px}
}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn i{transition:transform .18s ease-out}
.btn:hover i{transform:translateX(3px)}
.btn-primary{background:var(--fs-secondary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--fs-secondary-deep);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-accent{background:var(--fs-accent);color:var(--fs-secondary-deep)}
.btn-accent:hover{background:#e6f96a;color:var(--fs-secondary-deep);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--fs-ink);border-color:var(--fs-line)}
.btn-ghost:hover{border-color:var(--fs-primary);color:var(--fs-primary-deep)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.42)}
.btn-ghost-light:hover{border-color:#fff;background:rgba(255,255,255,.1);color:#fff}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--r-btn)}
.btn-block{width:100%}

/* ================= 标签 ================= */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.6;
  background:rgba(244,85,43,.1);color:var(--fs-primary-deep);
}
.tag-neutral{background:var(--fs-bg);color:var(--fs-ink-soft);border:1px solid var(--fs-line)}
.tag-light{background:rgba(255,255,255,.14);color:var(--fs-accent)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}

/* ================= 头部导航 ================= */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--fs-line);transition:box-shadow .18s ease-out}
.site-header.is-scrolled{box-shadow:0 8px 28px -20px rgba(16,20,24,.55)}
.brand-bar{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:10px;
  background:var(--fs-secondary);color:var(--fs-accent);
  display:flex;align-items:center;justify-content:center;font-size:16px;
  transition:transform .18s ease-out,background-color .18s ease-out;
}
.brand:hover .brand-mark{background:var(--fs-secondary-deep);transform:translateY(-1px)}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-name{font-size:18px;font-weight:800;color:var(--fs-ink);letter-spacing:-.01em;white-space:nowrap}
.brand-sub{font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:var(--fs-ink-soft);white-space:nowrap}
.brand-head-right{display:flex;align-items:center;gap:16px}
.head-search{position:relative;display:flex;align-items:center}
.head-search input{
  width:230px;height:40px;border-radius:999px;border:1px solid var(--fs-line);
  background:var(--fs-bg);padding:0 40px 0 16px;font-size:14px;color:var(--fs-ink);
  transition:border-color .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out;
}
.head-search input::placeholder{color:#8A9099}
.head-search input:focus{outline:none;border-color:var(--fs-primary);background:#fff;box-shadow:0 0 0 3px rgba(244,85,43,.12)}
.head-search i{position:absolute;right:16px;font-size:13px;color:var(--fs-ink-soft);pointer-events:none}
.head-phone{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--fs-ink-soft);white-space:nowrap}
.head-phone i{color:var(--fs-primary)}
.head-phone strong{color:var(--fs-ink);font-weight:600}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--fs-line);
  background:#fff;color:var(--fs-ink);cursor:pointer;align-items:center;justify-content:center;
  transition:border-color .18s ease-out,color .18s ease-out;
}
.nav-toggle:hover{border-color:var(--fs-primary);color:var(--fs-primary-deep)}

.channel-bar{background:#fff;border-top:1px solid var(--fs-line)}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:48px}
.channel-nav{display:flex;align-items:center;gap:2px}
.channel-nav a{
  position:relative;display:inline-flex;align-items:center;height:48px;padding:0 14px;
  font-size:15px;color:var(--fs-ink-soft);white-space:nowrap;
}
.channel-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;border-radius:2px;
  background:transparent;transition:background-color .18s ease-out;
}
.channel-nav a:hover{color:var(--fs-ink)}
.channel-nav a:hover::after{background:var(--fs-line)}
.channel-nav a.active{color:var(--fs-ink);font-weight:700}
.channel-nav a.active::after{background:var(--fs-primary)}
.live-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:13px;color:var(--fs-ink-soft);background:var(--fs-bg);border:1px solid var(--fs-line);white-space:nowrap;
}
.live-dot{width:7px;height:7px;border-radius:50%;background:var(--fs-primary);animation:pulse 2s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(244,85,43,.45)}
  70%{box-shadow:0 0 0 8px rgba(244,85,43,0)}
  100%{box-shadow:0 0 0 0 rgba(244,85,43,0)}
}

/* ================= 分类首屏 ================= */
.cat-hero{
  position:relative;display:flex;align-items:center;min-height:330px;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;color:#fff;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(10,44,37,.95) 0%,rgba(15,61,51,.88) 52%,rgba(10,44,37,.66) 100%);
}
.cat-hero .grid-container{position:relative;z-index:2;width:100%;padding-top:56px;padding-bottom:56px}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.breadcrumb span[aria-current]{color:rgba(255,255,255,.95)}
.cat-hero h1{
  font-size:46px;line-height:1.16;font-weight:800;color:#fff;
  letter-spacing:-.02em;max-width:900px;margin-bottom:18px;
}
.hero-lead{max-width:780px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.84)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}

/* ================= 板块通用 ================= */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-surface{background:#fff}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-label{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--fs-primary);margin-bottom:12px;
}
.sec-head h2{position:relative;font-size:34px;font-weight:700;padding-left:16px;line-height:1.28}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--fs-primary);
}
.sec-head p{margin-top:14px;font-size:16px;line-height:1.85;color:var(--fs-ink-soft)}
.sec-head-center{max-width:none;text-align:center}
.sec-head-center h2{padding-left:0}
.sec-head-center h2::before{content:none}

/* ================= 服务准则条 ================= */
.assure-strip{background:#fff;border-bottom:1px solid var(--fs-line)}
.assure-item{padding:32px 28px;border-left:1px solid var(--fs-line)}
.assure-item:first-child{border-left:none;padding-left:0}
.assure-num{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--fs-primary)}
.assure-item h3{font-size:18px;font-weight:700;margin:10px 0 8px}
.assure-item p{font-size:14px;line-height:1.75;color:var(--fs-ink-soft)}

/* ================= 分组锚点 + 课程列表 ================= */
.course-layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:40px;align-items:start}
.anchor-nav{
  position:sticky;top:140px;background:#fff;border:1px solid var(--fs-line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);
}
.anchor-nav h3{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--fs-ink-soft);margin-bottom:14px}
.anchor-nav ul li a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 2px;font-size:14px;color:var(--fs-ink-soft);border-bottom:1px dashed var(--fs-line);
  transition:color .18s ease-out,transform .18s ease-out;
}
.anchor-nav ul li:last-child a{border-bottom:none}
.anchor-nav ul li a:hover{color:var(--fs-primary-deep);transform:translateX(3px)}
.anchor-nav ul li a i{font-size:10px;color:var(--fs-line);transition:color .18s ease-out}
.anchor-nav ul li a:hover i{color:var(--fs-primary)}
.anchor-cta{
  margin-top:20px;padding:20px;border-radius:var(--r-card);
  background:var(--fs-secondary);color:#fff;
}
.anchor-cta h4{font-size:16px;font-weight:700;color:#fff;margin-bottom:8px}
.anchor-cta p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.76);margin-bottom:14px}

.course-list{display:flex;flex-direction:column;gap:16px}
.course-item{
  display:flex;gap:20px;padding:26px 28px;background:#fff;
  border:1px solid var(--fs-line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.course-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--fs-primary)}
.course-num{
  flex:0 0 52px;width:52px;height:52px;border-radius:12px;
  background:rgba(244,85,43,.1);color:var(--fs-primary-deep);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:800;letter-spacing:.02em;
}
.course-body{min-width:0;flex:1}
.course-body h3{font-size:20px;font-weight:700;margin-bottom:10px}
.course-body p{font-size:15px;line-height:1.8;color:var(--fs-ink-soft);margin-bottom:14px}
.course-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--fs-secondary);
}
.link-arrow i{font-size:12px;transition:transform .18s ease-out}
.link-arrow:hover{color:var(--fs-primary-deep)}
.link-arrow:hover i{transform:translateX(3px)}

/* ================= 流程图 ================= */
.step-card{
  height:100%;background:#fff;border:1px solid var(--fs-line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--fs-primary)}
.step-index{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--fs-primary)}
.step-card h3{font-size:18px;font-weight:700;margin:12px 0 10px}
.step-card p{font-size:14px;line-height:1.8;color:var(--fs-ink-soft)}

/* ================= 反馈区 ================= */
.feedback-media{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.feedback-media img{width:100%;height:100%;min-height:340px;object-fit:cover}
.feedback-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,44,37,0) 45%,rgba(10,44,37,.72) 100%);
}
.feedback-media figcaption{
  position:absolute;left:22px;right:22px;bottom:20px;z-index:2;
  font-size:13px;color:rgba(255,255,255,.86);
}
.quote-card{
  background:#fff;border:1px solid var(--fs-line);border-left:4px solid var(--fs-primary);
  border-radius:var(--r-card);padding:22px 24px;margin-bottom:16px;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.quote-card p{font-size:15px;line-height:1.85;color:var(--fs-ink);margin-bottom:12px}
.quote-meta{font-size:13px;color:var(--fs-ink-soft)}

/* ================= FAQ ================= */
.faq-side{position:sticky;top:140px}
.faq-side h2{position:relative;font-size:32px;font-weight:700;padding-left:16px;line-height:1.3}
.faq-side h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--fs-primary)}
.faq-side p{margin-top:16px;font-size:15px;line-height:1.85;color:var(--fs-ink-soft)}
.faq-panel{background:#fff;border:1px solid var(--fs-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.accordion{background:transparent;border:none;margin:0}
.accordion-item{background:transparent;border:none}
.accordion-title{
  position:relative;display:block;padding:20px 48px 20px 20px;font-size:17px;font-weight:600;
  color:var(--fs-ink);background:transparent;border:0;border-bottom:1px solid var(--fs-line);
  transition:background-color .18s ease-out,box-shadow .18s ease-out,color .18s ease-out;
}
.accordion-title:hover{background:rgba(244,85,43,.04);color:var(--fs-primary-deep)}
.accordion-title::before{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:12px;color:var(--fs-ink-soft);
  transition:transform .18s ease-out,color .18s ease-out;
}
.accordion-item.is-active .accordion-title{
  font-weight:700;background:rgba(244,85,43,.05);box-shadow:inset 4px 0 0 var(--fs-primary);
}
.accordion-item.is-active .accordion-title::before{content:"\f077";color:var(--fs-primary)}
.accordion-content{
  padding:18px 26px 22px 20px;background:#fff;border-bottom:1px solid var(--fs-line);
  font-size:15.5px;line-height:1.85;color:var(--fs-ink-soft);
}
.accordion-item:last-child .accordion-title,
.accordion-item:last-child .accordion-content{border-bottom:none}

/* ================= CTA ================= */
.cta-band{position:relative;background:var(--fs-secondary);color:#fff;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  border:1px solid rgba(216,241,60,.22);
}
.cta-inner{position:relative;z-index:2;padding:84px 0;display:flex;align-items:center;justify-content:space-between;gap:40px}
.cta-copy{max-width:660px}
.cta-copy h2{font-size:36px;font-weight:800;color:#fff;line-height:1.25;margin-bottom:14px}
.cta-copy p{font-size:16px;line-height:1.85;color:rgba(255,255,255,.78)}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-lines{display:flex;gap:6px;margin-top:26px}
.cta-lines span{display:block;height:3px;width:44px;border-radius:2px;background:rgba(216,241,60,.5)}
.cta-lines span:first-child{background:var(--fs-accent);width:64px}

/* ================= 页脚 ================= */
.site-footer{background:var(--fs-secondary-deep);color:rgba(255,255,255,.72);padding-top:72px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.foot-brand .brand{margin-bottom:18px}
.foot-brand .brand-name{color:#fff}
.foot-brand .brand-sub{color:rgba(255,255,255,.5)}
.foot-brand .brand-mark{background:rgba(255,255,255,.08);color:var(--fs-accent)}
.foot-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px}
.foot-col h4{font-size:14px;font-weight:700;color:rgba(255,255,255,.92);margin-bottom:18px;letter-spacing:.04em}
.foot-col ul li{margin-bottom:11px}
.foot-col ul li a{font-size:15px;color:rgba(255,255,255,.7)}
.foot-col ul li a:hover{color:var(--fs-accent)}
.foot-contact li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.68);margin-bottom:12px}
.foot-contact i{color:var(--fs-accent);margin-top:5px;font-size:13px}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 28px;border-top:1px solid var(--fs-line-dark);
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ================= 动效 ================= */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .5s ease-out,transform .5s ease-out}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .live-dot{animation:none}
}

/* ================= 响应式 ================= */
@media screen and (max-width:1023px){
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .cat-hero h1{font-size:36px}
  .sec-head h2{font-size:28px}
  .faq-side h2{font-size:26px}
  .faq-side{position:static;margin-bottom:32px}
  .assure-item{border-left:none;border-top:1px solid var(--fs-line);padding:24px 0}
  .assure-item:first-child{border-top:none;padding-top:8px}
  .course-layout{grid-template-columns:1fr;gap:28px}
  .anchor-nav{position:static}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:64px 0}
  .cta-copy h2{font-size:30px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:767px){
  .head-search,.head-phone{display:none}
  .nav-toggle{display:inline-flex}
  .brand-head-right{gap:12px}
  .channel-bar{display:none}
  .site-header.nav-open .channel-bar{
    display:block;position:absolute;top:100%;left:0;right:0;background:#fff;
    border-top:1px solid var(--fs-line);box-shadow:0 18px 36px -22px rgba(16,20,24,.5);
  }
  .site-header.nav-open .channel-inner{display:block;height:auto;padding-top:8px;padding-bottom:16px}
  .site-header.nav-open .channel-nav{flex-direction:column;align-items:stretch;gap:0}
  .site-header.nav-open .channel-nav a{height:auto;padding:14px 2px;border-bottom:1px solid var(--fs-line);font-size:16px}
  .site-header.nav-open .channel-nav a::after{display:none}
  .site-header.nav-open .channel-nav a.active{color:var(--fs-primary-deep)}
  .site-header.nav-open .live-tag{margin-top:14px}
  .cat-hero h1{font-size:30px}
  .hero-lead{font-size:15px}
  .cta-copy h2{font-size:26px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}
@media screen and (max-width:519px){
  body{font-size:16px}
  .brand-name{font-size:16px}
  .brand-sub{display:none}
  .cat-hero{min-height:290px}
  .cat-hero .grid-container{padding-top:44px;padding-bottom:44px}
  .cat-hero h1{font-size:26px}
  .section{padding:56px 0}
  .sec-head h2{font-size:24px}
  .course-item{flex-direction:column;gap:14px;padding:22px 20px}
  .course-num{width:44px;height:44px;flex:0 0 44px;font-size:15px}
  .course-foot{flex-direction:column;align-items:flex-start}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .btn{height:46px}
}

/* roulang page: category4 */
:root{
  --fs-primary:#F4552B;
  --fs-primary-deep:#D33E18;
  --fs-secondary:#0F3D33;
  --fs-secondary-deep:#0A2C25;
  --fs-accent:#D8F13C;
  --fs-ink:#12161A;
  --fs-ink-soft:#4A525B;
  --fs-bg:#F7F5F1;
  --fs-surface:#FFFFFF;
  --fs-line:#E5E0D7;
  --fs-line-dark:rgba(255,255,255,.14);
  --fs-radius-card:14px;
  --fs-radius-btn:10px;
  --fs-radius-img:12px;
  --fs-shadow-1:0 1px 2px rgba(16,20,24,.06),0 10px 24px -18px rgba(16,20,24,.3);
  --fs-shadow-2:0 18px 36px -20px rgba(16,20,24,.4);
  --fs-ease:180ms ease-out;
  --fs-font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--fs-font);
  font-size:16.5px;
  line-height:1.75;
  color:var(--fs-ink);
  background:var(--fs-bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--fs-secondary);text-decoration:none;transition:color var(--fs-ease),border-color var(--fs-ease);}
a:hover{color:var(--fs-primary);}
h1,h2,h3,h4{margin:0;color:var(--fs-ink);font-family:var(--fs-font);letter-spacing:-.01em;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:var(--fs-font);cursor:pointer;}
:focus-visible{outline:2px solid var(--fs-primary);outline-offset:2px;}
.grid-container{max-width:1240px;padding-left:32px;padding-right:32px;width:100%;}
@media (min-width:1440px){.grid-container{max-width:1320px;}}
@media (max-width:1023px){.grid-container{padding-left:28px;padding-right:28px;}}
@media (max-width:639px){.grid-container{padding-left:20px;padding-right:20px;}}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--fs-surface);border-bottom:1px solid var(--fs-line);transition:box-shadow var(--fs-ease);}
.site-header.is-stuck{box-shadow:0 8px 24px -18px rgba(16,20,24,.45);}
.brand-bar{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:12px;}
.brand-mark{width:40px;height:40px;border-radius:12px;background:var(--fs-secondary);color:var(--fs-accent);display:inline-flex;align-items:center;justify-content:center;font-size:18px;flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:19px;font-weight:800;color:var(--fs-ink);letter-spacing:-.02em;}
.brand-sub{font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--fs-ink-soft);}
.brand-head-right{display:flex;align-items:center;gap:18px;}
.head-search{position:relative;display:flex;align-items:center;}
.head-search input{
  width:210px;height:40px;padding:0 38px 0 14px;margin:0;
  border:1px solid var(--fs-line);border-radius:var(--fs-radius-btn);
  background:var(--fs-bg);color:var(--fs-ink);font-size:14px;font-family:var(--fs-font);
  box-shadow:none;transition:border-color var(--fs-ease),background var(--fs-ease),box-shadow var(--fs-ease);
}
.head-search input::placeholder{color:#8A9099;}
.head-search input:focus{border-color:var(--fs-primary);background:#FFF7F4;box-shadow:none;outline:none;}
.head-search i{position:absolute;right:14px;color:var(--fs-ink-soft);font-size:13px;pointer-events:none;}
.head-phone{font-size:13.5px;color:var(--fs-ink-soft);display:inline-flex;align-items:center;gap:7px;white-space:nowrap;}
.head-phone i{color:var(--fs-primary);}
.head-phone strong{color:var(--fs-ink);font-weight:700;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--fs-radius-btn);border:1px solid var(--fs-line);background:var(--fs-surface);color:var(--fs-ink);font-size:17px;}
.nav-toggle:hover{border-color:var(--fs-primary);color:var(--fs-primary);}

/* ---------- 频道行 ---------- */
.channel-bar{background:var(--fs-surface);border-top:1px solid var(--fs-line);}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:48px;}
.channel-nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap;}
.channel-nav a{
  position:relative;display:inline-block;padding:14px 16px;font-size:15px;font-weight:600;
  color:var(--fs-ink-soft);border-bottom:3px solid transparent;
}
.channel-nav a:hover{color:var(--fs-ink);border-bottom-color:var(--fs-line);}
.channel-nav a.active{color:var(--fs-ink);border-bottom-color:var(--fs-primary);}
.live-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--fs-ink-soft);white-space:nowrap;}
.live-dot{width:8px;height:8px;border-radius:50%;background:var(--fs-primary);box-shadow:0 0 0 4px rgba(244,85,43,.16);animation:pulse 2.2s infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.45;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--fs-radius-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:background var(--fs-ease),color var(--fs-ease),border-color var(--fs-ease),transform var(--fs-ease),box-shadow var(--fs-ease);
}
.btn i{transition:transform var(--fs-ease);}
.btn:hover i{transform:translateX(3px);}
.btn-primary{background:var(--fs-secondary);color:#fff;}
.btn-primary:hover{background:var(--fs-secondary-deep);color:#fff;box-shadow:var(--fs-shadow-1);}
.btn-primary:active{transform:translateY(1px);}
.btn-accent{background:var(--fs-accent);color:var(--fs-secondary-deep);}
.btn-accent:hover{background:#E4F86A;color:var(--fs-secondary-deep);}
.btn-ghost{border-color:var(--fs-line);color:var(--fs-ink);background:transparent;}
.btn-ghost:hover{border-color:var(--fs-primary);color:var(--fs-primary);}
.btn-ghost-light{border-color:var(--fs-line-dark);color:#fff;background:transparent;}
.btn-ghost-light:hover{border-color:var(--fs-accent);color:var(--fs-accent);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
@media (max-width:1023px){.section{padding:72px 0;}.section-tight{padding:56px 0;}}
@media (max-width:639px){.section{padding:56px 0;}.section-tight{padding:44px 0;}}
.section-dark{background:var(--fs-secondary);color:#fff;}
.section-dark h2,.section-dark h3{color:#fff;}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-head h2{font-size:34px;line-height:1.25;font-weight:700;}
.sec-head p{margin-top:14px;color:var(--fs-ink-soft);font-size:16px;}
.section-dark .sec-head p{color:rgba(255,255,255,.72);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;
  text-transform:uppercase;color:var(--fs-primary);font-weight:700;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:3px;background:var(--fs-primary);display:inline-block;border-radius:2px;}
.section-dark .eyebrow{color:var(--fs-accent);}
.section-dark .eyebrow::before{background:var(--fs-accent);}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.sec-head-row .sec-head{margin-bottom:0;}
.link-more{font-size:15px;font-weight:700;color:var(--fs-secondary);display:inline-flex;align-items:center;gap:8px;white-space:nowrap;}
.link-more:hover{color:var(--fs-primary);}
.link-more i{transition:transform var(--fs-ease);}
.link-more:hover i{transform:translateX(3px);}

/* ---------- 面包屑 ---------- */
.crumb{font-size:13.5px;color:rgba(255,255,255,.72);display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:18px;}
.crumb a{color:rgba(255,255,255,.86);}
.crumb a:hover{color:var(--fs-accent);}
.crumb span.sep{opacity:.5;}
.crumb span.current{color:rgba(255,255,255,.6);}

/* ---------- 分类页 Hero ---------- */
.cat-hero{
  position:relative;min-height:330px;display:flex;align-items:center;
  background-image:linear-gradient(105deg,rgba(10,44,37,.95) 0%,rgba(15,61,51,.86) 52%,rgba(15,61,51,.6) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;color:#fff;
}
.cat-hero .hero-inner{padding:56px 0;width:100%;}
.cat-hero h1{font-size:44px;line-height:1.15;font-weight:800;color:#fff;letter-spacing:-.02em;max-width:820px;}
.cat-hero .hero-lead{margin-top:18px;max-width:700px;font-size:16.5px;color:rgba(255,255,255,.8);}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.01em;
}
.tag-light{background:rgba(255,255,255,.12);color:#fff;border:1px solid var(--fs-line-dark);}
.tag-soft{background:#FDEDE8;color:var(--fs-primary-deep);}
.tag-line{background:transparent;color:var(--fs-ink-soft);border:1px solid var(--fs-line);}
@media (max-width:1023px){.cat-hero h1{font-size:36px;}}
@media (max-width:639px){.cat-hero{min-height:auto;}.cat-hero h1{font-size:29px;}.cat-hero .hero-inner{padding:44px 0;}.hero-actions .btn{width:100%;}}

/* ---------- 数据条 ---------- */
.stat-strip{background:var(--fs-surface);border-bottom:1px solid var(--fs-line);}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat-cell{padding:32px 26px;border-left:1px solid var(--fs-line);}
.stat-cell:first-child{border-left:none;}
.stat-num{font-size:44px;font-weight:800;line-height:1;color:var(--fs-secondary);letter-spacing:-.03em;font-variant-numeric:tabular-nums;}
.stat-num em{font-style:normal;font-size:16px;font-weight:700;color:var(--fs-primary);margin-left:6px;}
.stat-label{margin-top:12px;font-size:13px;color:var(--fs-ink-soft);line-height:1.6;}
@media (max-width:1023px){.stat-grid{grid-template-columns:repeat(2,1fr);}.stat-cell:nth-child(3){border-left:none;}.stat-cell{border-top:1px solid var(--fs-line);}}
@media (max-width:639px){.stat-grid{grid-template-columns:1fr;}.stat-cell{border-left:none;}.stat-cell:first-child{border-top:none;}}

/* ---------- 卡片墙 ---------- */
.card-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.wall-card{
  background:var(--fs-surface);border:1px solid var(--fs-line);border-radius:var(--fs-radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform var(--fs-ease),box-shadow var(--fs-ease),border-color var(--fs-ease);
}
.wall-card:hover{transform:translateY(-3px);box-shadow:var(--fs-shadow-2);border-color:var(--fs-primary);}
.wall-thumb{position:relative;aspect-ratio:16/10;background:#EFECE6;overflow:hidden;}
.wall-thumb img{width:100%;height:100%;object-fit:cover;}
.wall-thumb .thumb-tag{position:absolute;left:14px;top:14px;background:rgba(10,44,37,.86);color:#fff;font-size:12px;padding:4px 11px;border-radius:999px;font-weight:600;}
.wall-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.wall-body h3{font-size:20px;font-weight:600;line-height:1.4;}
.wall-body p{margin-top:10px;font-size:15px;color:var(--fs-ink-soft);line-height:1.7;flex:1;}
.wall-points{margin-top:16px;display:flex;flex-direction:column;gap:8px;}
.wall-points li{position:relative;padding-left:18px;font-size:14px;color:var(--fs-ink-soft);}
.wall-points li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--fs-primary);}
.wall-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--fs-line);}
@media (max-width:1023px){.card-wall{grid-template-columns:repeat(2,1fr);}}
@media (max-width:639px){.card-wall{grid-template-columns:1fr;}}

/* ---------- 服务点条目行 ---------- */
.point-list{border-top:1px solid var(--fs-line);}
.point-row{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:20px;align-items:center;
  padding:24px 4px;border-bottom:1px solid var(--fs-line);
  transition:background var(--fs-ease),padding var(--fs-ease);
}
.point-row:hover{background:#FFF9F6;}
.point-name{font-size:17px;font-weight:700;}
.point-name small{display:block;font-size:13px;font-weight:400;color:var(--fs-ink-soft);margin-top:4px;}
.point-cell{font-size:14.5px;color:var(--fs-ink-soft);}
.point-cell strong{display:block;font-size:12px;letter-spacing:.06em;color:#8A9099;font-weight:600;margin-bottom:4px;text-transform:uppercase;}
.point-action{text-align:right;}
@media (max-width:1023px){
  .point-row{grid-template-columns:1fr 1fr;gap:14px 20px;}
  .point-action{text-align:left;}
}
@media (max-width:639px){
  .point-row{grid-template-columns:1fr;}
}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.flow-item{position:relative;padding:26px 24px;border:1px solid var(--fs-line-dark);border-radius:var(--fs-radius-card);background:rgba(255,255,255,.04);}
.flow-index{font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--fs-accent);}
.flow-item h3{margin-top:12px;font-size:19px;font-weight:600;}
.flow-item p{margin-top:10px;font-size:14.5px;color:rgba(255,255,255,.72);}
@media (max-width:1023px){.flow-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:639px){.flow-grid{grid-template-columns:1fr;}}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-side .sec-head{margin-bottom:22px;}
.faq-side p{font-size:15px;color:var(--fs-ink-soft);}
.faq-list{border-top:1px solid var(--fs-line);}
.faq-item{border-bottom:1px solid var(--fs-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px 22px 18px;background:transparent;border:none;border-left:4px solid transparent;
  font-size:17px;font-weight:600;color:var(--fs-ink);text-align:left;
  transition:color var(--fs-ease),border-color var(--fs-ease),background var(--fs-ease);
}
.faq-q:hover{color:var(--fs-primary);}
.faq-item.open .faq-q{border-left-color:var(--fs-primary);font-weight:800;color:var(--fs-ink);}
.faq-q i{flex:0 0 auto;color:var(--fs-ink-soft);font-size:14px;transition:transform var(--fs-ease),color var(--fs-ease);}
.faq-item.open .faq-q i{transform:rotate(45deg);color:var(--fs-primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms ease-out;}
.faq-a p{padding:0 40px 24px 22px;margin:0;font-size:15.5px;color:var(--fs-ink-soft);line-height:1.8;}
@media (max-width:1023px){.faq-wrap{grid-template-columns:1fr;gap:32px;}}

/* ---------- CTA ---------- */
.cta-band{background:var(--fs-secondary-deep);color:#fff;position:relative;overflow:hidden;}
.cta-band::after{content:"";position:absolute;right:-80px;top:-60px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(216,241,60,.16),transparent 68%);}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;padding:64px 0;position:relative;z-index:2;}
.cta-inner h2{font-size:32px;line-height:1.25;font-weight:800;color:#fff;max-width:640px;}
.cta-inner p{margin-top:14px;font-size:16px;color:rgba(255,255,255,.74);max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
@media (max-width:1023px){.cta-inner{flex-direction:column;align-items:flex-start;padding:52px 0;}.cta-inner h2{font-size:26px;}}
@media (max-width:639px){.cta-actions{width:100%;}.cta-actions .btn{width:100%;}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--fs-secondary-deep);color:rgba(255,255,255,.72);padding:72px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.site-footer .brand-name{color:#fff;}
.site-footer .brand-sub{color:rgba(255,255,255,.5);}
.site-footer .brand-mark{background:rgba(255,255,255,.1);}
.foot-brand p{margin-top:18px;font-size:14.5px;line-height:1.75;color:rgba(255,255,255,.66);max-width:340px;}
.foot-col h4{font-size:14px;letter-spacing:.04em;color:rgba(255,255,255,.55);font-weight:700;margin-bottom:18px;}
.foot-col ul{display:flex;flex-direction:column;gap:11px;}
.foot-col a{font-size:15px;color:rgba(255,255,255,.82);}
.foot-col a:hover{color:var(--fs-accent);}
.foot-contact li{display:flex;gap:10px;font-size:14.5px;color:rgba(255,255,255,.72);}
.foot-contact i{color:var(--fs-accent);margin-top:5px;font-size:13px;}
.foot-bottom{
  border-top:1px solid var(--fs-line-dark);padding:22px 0;display:flex;flex-wrap:wrap;
  align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:rgba(255,255,255,.55);
}
@media (max-width:1023px){.foot-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:639px){.foot-grid{grid-template-columns:1fr;}.site-footer{padding-top:52px;}}

/* ---------- 移动端导航 ---------- */
@media (max-width:639px){
  .brand-sub{display:none;}
  .head-search{display:none;}
  .head-phone{display:none;}
  .brand-head-right .btn-primary{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .channel-bar{display:none;}
  .site-header.nav-open .channel-bar{
    display:block;position:absolute;top:100%;left:0;right:0;
    background:var(--fs-surface);border-top:1px solid var(--fs-line);box-shadow:0 24px 40px -26px rgba(16,20,24,.5);
  }
  .site-header.nav-open .channel-inner{flex-direction:column;align-items:stretch;padding:10px 0 20px;gap:0;}
  .site-header.nav-open .channel-nav{flex-direction:column;align-items:stretch;gap:0;}
  .site-header.nav-open .channel-nav a{padding:14px 4px;border-bottom:1px solid var(--fs-line);border-left:3px solid transparent;}
  .site-header.nav-open .channel-nav a.active{border-bottom-color:var(--fs-line);border-left-color:var(--fs-primary);}
  .site-header.nav-open .live-tag{margin-top:14px;padding:0 4px;}
  .site-header.nav-open .cms-hidden{display:none;}
  .section-dark .flow-grid{gap:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
}

/* roulang page: category3 */
:root{
  --fs-primary:#F4552B;
  --fs-primary-deep:#D33E18;
  --fs-secondary:#0F3D33;
  --fs-secondary-deep:#0A2C25;
  --fs-accent:#D8F13C;
  --fs-ink:#12161A;
  --fs-ink-soft:#4A525B;
  --fs-bg:#F7F5F1;
  --fs-surface:#FFFFFF;
  --fs-line:#E5E0D7;
  --fs-line-dark:rgba(255,255,255,.14);
  --fs-r-card:14px;
  --fs-r-btn:10px;
  --fs-r-img:12px;
  --fs-r-pill:999px;
  --fs-sh-1:0 1px 2px rgba(16,20,24,.06),0 10px 24px -18px rgba(16,20,24,.3);
  --fs-sh-2:0 18px 36px -20px rgba(16,20,24,.4);
  --fs-ease:180ms ease-out;
  --fs-container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--fs-bg);
  color:var(--fs-ink);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--fs-ink);text-decoration:none;transition:color var(--fs-ease),border-color var(--fs-ease),background-color var(--fs-ease);}
a:hover{color:var(--fs-primary);}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--fs-ink);letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--fs-primary);outline-offset:2px;}
.grid-container{max-width:var(--fs-container);padding-left:32px;padding-right:32px;margin:0 auto;}
@media screen and (max-width:1023px){.grid-container{padding-left:28px;padding-right:28px;}}
@media screen and (max-width:639px){.grid-container{padding-left:20px;padding-right:20px;}}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(247,245,241,.96);border-bottom:1px solid var(--fs-line);transition:box-shadow var(--fs-ease);}
.site-header.is-stuck{box-shadow:0 6px 22px -18px rgba(16,20,24,.55);}
.brand-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:12px;}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--fs-secondary);color:var(--fs-accent);display:inline-flex;align-items:center;justify-content:center;font-size:17px;flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--fs-ink);}
.brand-sub{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--fs-ink-soft);}
.brand-head-right{display:flex;align-items:center;gap:18px;}
.head-search{position:relative;display:flex;align-items:center;}
.head-search input{width:220px;height:40px;padding:0 38px 0 14px;border:1px solid var(--fs-line);border-radius:var(--fs-r-btn);background:#fff;font-size:14px;transition:border-color var(--fs-ease),box-shadow var(--fs-ease);}
.head-search input::placeholder{color:#9aa1a8;}
.head-search input:focus{border-color:var(--fs-primary);outline:none;box-shadow:0 0 0 3px rgba(244,85,43,.12);}
.head-search i{position:absolute;right:14px;color:var(--fs-ink-soft);font-size:13px;pointer-events:none;}
.head-phone{font-size:13px;color:var(--fs-ink-soft);white-space:nowrap;}
.head-phone i{color:var(--fs-primary);margin-right:6px;}
.head-phone strong{color:var(--fs-ink);font-weight:600;}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--fs-line);border-radius:var(--fs-r-btn);background:#fff;cursor:pointer;}
.channel-bar{border-top:1px solid var(--fs-line);background:#fff;}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:48px;}
.channel-nav{display:flex;align-items:center;gap:26px;}
.channel-nav a{position:relative;font-size:15px;color:var(--fs-ink-soft);padding:13px 0;font-weight:500;}
.channel-nav a::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:3px;background:transparent;border-radius:2px;transition:background-color var(--fs-ease);}
.channel-nav a:hover{color:var(--fs-ink);}
.channel-nav a:hover::after{background:var(--fs-line);}
.channel-nav a.active{color:var(--fs-ink);font-weight:700;}
.channel-nav a.active::after{background:var(--fs-primary);}
.live-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--fs-ink-soft);white-space:nowrap;}
.live-dot{width:8px;height:8px;border-radius:50%;background:var(--fs-primary);box-shadow:0 0 0 4px rgba(244,85,43,.14);animation:pulse 2s infinite;}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(244,85,43,.32);}70%{box-shadow:0 0 0 9px rgba(244,85,43,0);}100%{box-shadow:0 0 0 0 rgba(244,85,43,0);}}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--fs-r-btn);border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;transition:background-color var(--fs-ease),color var(--fs-ease),border-color var(--fs-ease),transform var(--fs-ease),box-shadow var(--fs-ease);}
.btn i{font-size:13px;transition:transform var(--fs-ease);}
.btn:hover i{transform:translateX(3px);}
.btn-primary{background:var(--fs-secondary);color:#fff;}
.btn-primary:hover{background:var(--fs-secondary-deep);color:#fff;box-shadow:var(--fs-sh-1);}
.btn-ghost{background:transparent;border-color:var(--fs-line);color:var(--fs-ink);}
.btn-ghost:hover{border-color:var(--fs-primary);color:var(--fs-primary);}
.btn-accent{background:var(--fs-accent);color:var(--fs-secondary-deep);}
.btn-accent:hover{background:#c9e524;color:var(--fs-secondary-deep);}
.btn-outline-light{background:transparent;border-color:var(--fs-line-dark);color:#fff;}
.btn-outline-light:hover{border-color:var(--fs-accent);color:var(--fs-accent);}
.btn-block{width:100%;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ---------- Hero ---------- */
.page-hero{position:relative;isolation:isolate;min-height:340px;display:flex;align-items:center;background:var(--fs-secondary-deep);overflow:hidden;}
.page-hero .hero-bg{position:absolute;inset:0;background-image:url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center;z-index:-2;}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(10,44,37,.95) 0%,rgba(15,61,51,.86) 52%,rgba(15,61,51,.62) 100%);z-index:-1;}
.page-hero .hero-inner{padding:44px 0 52px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66);margin-bottom:20px;}
.crumb a{color:rgba(255,255,255,.82);}
.crumb a:hover{color:var(--fs-accent);}
.crumb span.sep{opacity:.5;}
.crumb .current{color:#fff;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--fs-r-pill);background:rgba(216,241,60,.14);border:1px solid rgba(216,241,60,.32);color:var(--fs-accent);font-size:12.5px;letter-spacing:.06em;margin-bottom:18px;}
.page-hero h1{color:#fff;font-size:clamp(28px,3.6vw,44px);font-weight:800;line-height:1.18;max-width:19em;}
.page-hero h1 em{font-style:normal;color:var(--fs-accent);}
.hero-lead{margin-top:18px;max-width:60ch;color:rgba(255,255,255,.82);font-size:16.5px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}

/* ---------- Live strip ---------- */
.live-strip{background:var(--fs-secondary);color:rgba(255,255,255,.86);}
.live-strip .strip-inner{display:flex;flex-wrap:wrap;align-items:center;gap:14px 32px;padding:14px 0;font-size:13.5px;}
.live-strip .strip-item{display:inline-flex;align-items:center;gap:8px;}
.live-strip i{color:var(--fs-accent);font-size:12px;}

/* ---------- Sections ---------- */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section.alt{background:#fff;}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-label{display:inline-block;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--fs-primary);font-weight:700;margin-bottom:12px;}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);}
.sec-head h2::before{content:"";display:block;width:44px;height:4px;border-radius:2px;background:var(--fs-primary);margin-bottom:16px;}
.sec-head p{margin-top:14px;color:var(--fs-ink-soft);font-size:16px;}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ---------- Intro panel ---------- */
.intro-panel{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:start;}
.intro-panel .intro-text p{color:var(--fs-ink-soft);margin-bottom:16px;}
.intro-panel .intro-text p:last-child{margin-bottom:0;}
.intro-points{background:#fff;border:1px solid var(--fs-line);border-radius:var(--fs-r-card);padding:26px 26px 22px;box-shadow:var(--fs-sh-1);}
.intro-points h3{font-size:17px;margin-bottom:16px;}
.intro-points li{display:flex;gap:12px;padding:12px 0;border-top:1px solid var(--fs-line);font-size:14.5px;color:var(--fs-ink-soft);}
.intro-points li:first-of-type{border-top:0;}
.intro-points li i{color:var(--fs-primary);margin-top:5px;font-size:13px;}

/* ---------- Asset grid (2 columns, 4/3 covers) ---------- */
.asset-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
.asset-card{background:#fff;border:1px solid var(--fs-line);border-radius:var(--fs-r-card);overflow:hidden;box-shadow:var(--fs-sh-1);display:flex;flex-direction:column;transition:transform var(--fs-ease),box-shadow var(--fs-ease),border-color var(--fs-ease);}
.asset-card:hover{transform:translateY(-3px);box-shadow:var(--fs-sh-2);border-color:var(--fs-primary);}
.asset-media{position:relative;aspect-ratio:4/3;background:#EFEBE3;overflow:hidden;}
.asset-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out;}
.asset-card:hover .asset-media img{transform:scale(1.04);}
.asset-media .tag{position:absolute;left:16px;top:16px;padding:5px 12px;border-radius:var(--fs-r-pill);background:rgba(255,255,255,.94);color:var(--fs-primary);font-size:12.5px;font-weight:700;}
.asset-body{padding:24px;display:flex;flex-direction:column;gap:14px;flex:1;}
.asset-body h3{font-size:20px;}
.asset-points{display:flex;flex-direction:column;gap:8px;}
.asset-points li{position:relative;padding-left:18px;font-size:14.5px;color:var(--fs-ink-soft);}
.asset-points li::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:2px;background:var(--fs-primary);opacity:.85;}
.asset-link{margin-top:auto;display:inline-flex;align-items:center;gap:7px;font-size:14.5px;font-weight:600;color:var(--fs-secondary);}
.asset-link i{font-size:12px;transition:transform var(--fs-ease);}
.asset-link:hover i{transform:translateX(3px);}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px;counter-reset:step;}
.step{position:relative;background:#fff;border:1px solid var(--fs-line);border-radius:var(--fs-r-card);padding:24px 20px;box-shadow:var(--fs-sh-1);}
.step::before{counter-increment:step;content:"0" counter(step);display:block;font-size:26px;font-weight:800;color:var(--fs-primary);letter-spacing:-.02em;margin-bottom:10px;font-variant-numeric:tabular-nums;}
.step h3{font-size:16px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--fs-ink-soft);}

/* ---------- Compare ---------- */
.compare{background:var(--fs-secondary);border-radius:18px;padding:44px;color:#fff;}
.compare h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin-bottom:10px;}
.compare .compare-sub{color:rgba(255,255,255,.72);font-size:15px;max-width:70ch;}
.compare-body{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-top:34px;border-top:1px solid var(--fs-line-dark);}
.compare-col{padding:26px 30px 4px 0;}
.compare-col:last-child{padding-right:0;padding-left:30px;border-left:1px solid var(--fs-line-dark);}
.compare-col h3{font-size:15px;color:rgba(255,255,255,.62);font-weight:600;letter-spacing:.06em;margin-bottom:16px;}
.compare-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.1);font-size:14.5px;}
.compare-row span:first-child{color:rgba(255,255,255,.68);}
.compare-row span:last-child{font-weight:700;color:#fff;text-align:right;}
.compare-col.good .compare-row{border-bottom-style:solid;border-bottom-color:rgba(255,255,255,.14);}
.compare-col.good .compare-row span:first-child{position:relative;padding-left:14px;color:rgba(255,255,255,.86);}
.compare-col.good .compare-row span:first-child::before{content:"";position:absolute;left:0;top:6px;width:4px;height:14px;border-radius:2px;background:var(--fs-accent);}
.compare-col.good .compare-row span:last-child{color:var(--fs-accent);}
.compare-foot{margin-top:30px;padding-top:24px;border-top:1px solid var(--fs-line-dark);display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.compare-foot p{color:rgba(255,255,255,.8);font-size:15px;max-width:66ch;}

/* ---------- Scenarios ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.scene{background:#fff;border:1px solid var(--fs-line);border-radius:var(--fs-r-card);padding:26px;box-shadow:var(--fs-sh-1);transition:transform var(--fs-ease),border-color var(--fs-ease),box-shadow var(--fs-ease);}
.scene:hover{transform:translateY(-3px);border-color:var(--fs-primary);box-shadow:var(--fs-sh-2);}
.scene .scene-icon{width:44px;height:44px;border-radius:12px;background:rgba(244,85,43,.1);color:var(--fs-primary);display:flex;align-items:center;justify-content:center;font-size:17px;margin-bottom:18px;}
.scene h3{font-size:18px;margin-bottom:10px;}
.scene p{font-size:14.5px;color:var(--fs-ink-soft);}
.scene .scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.pill{display:inline-block;padding:4px 12px;border-radius:var(--fs-r-pill);background:rgba(244,85,43,.09);color:var(--fs-primary);font-size:12.5px;font-weight:600;}

/* ---------- Service bar ---------- */
.svc-bar{background:#fff;border-top:1px solid var(--fs-line);border-bottom:1px solid var(--fs-line);}
.svc-bar .svc-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;}
.svc-item{padding:34px 28px;border-left:1px solid var(--fs-line);}
.svc-item:first-child{border-left:0;padding-left:0;}
.svc-item i{color:var(--fs-primary);font-size:18px;margin-bottom:14px;display:block;}
.svc-item h3{font-size:17px;margin-bottom:8px;}
.svc-item p{font-size:14px;color:var(--fs-ink-soft);}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start;}
.faq-list{border-top:1px solid var(--fs-line);}
.faq-item{border-bottom:1px solid var(--fs-line);}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding:20px 0 20px 18px;position:relative;font-size:16.5px;font-weight:600;color:var(--fs-ink);transition:color var(--fs-ease);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{content:"";position:absolute;left:0;top:22px;width:4px;height:0;border-radius:2px;background:var(--fs-primary);transition:height 220ms ease-out;}
.faq-item summary .faq-icon{flex:0 0 auto;width:24px;height:24px;border-radius:50%;border:1px solid var(--fs-line);display:flex;align-items:center;justify-content:center;color:var(--fs-ink-soft);font-size:11px;margin-top:4px;transition:transform 220ms ease-out,background-color var(--fs-ease),color var(--fs-ease),border-color var(--fs-ease);}
.faq-item summary:hover{color:var(--fs-primary);}
.faq-item[open] summary{font-weight:700;padding-left:20px;}
.faq-item[open] summary::before{height:18px;}
.faq-item[open] summary .faq-icon{transform:rotate(45deg);background:var(--fs-primary);border-color:var(--fs-primary);color:#fff;}
.faq-answer{padding:0 0 22px 20px;color:var(--fs-ink-soft);font-size:15px;max-width:74ch;}

/* ---------- CTA + Form ---------- */
.cta-block{background:var(--fs-secondary);color:#fff;border-radius:18px;padding:52px 48px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
.cta-block h2{color:#fff;font-size:clamp(24px,2.6vw,32px);}
.cta-block .cta-sub{margin-top:14px;color:rgba(255,255,255,.78);font-size:15.5px;max-width:52ch;}
.cta-list{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.cta-list li{display:flex;gap:12px;font-size:15px;color:rgba(255,255,255,.88);}
.cta-list li i{color:var(--fs-accent);margin-top:5px;font-size:13px;}
.form-card{background:#fff;border-radius:var(--fs-r-card);padding:28px;box-shadow:var(--fs-sh-2);}
.form-card h3{font-size:19px;margin-bottom:6px;color:var(--fs-ink);}
.form-card .form-tip{font-size:13.5px;color:var(--fs-ink-soft);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px;color:var(--fs-ink);}
.field label .req{color:var(--fs-primary);margin-left:4px;}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--fs-line);border-radius:var(--fs-r-btn);background:#fff;padding:11px 14px;font-size:14.5px;transition:border-color var(--fs-ease),box-shadow var(--fs-ease),background-color var(--fs-ease);}
.field textarea{min-height:96px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--fs-primary);background:#FFF9F6;box-shadow:0 0 0 3px rgba(244,85,43,.12);}
.form-note{font-size:12.5px;color:var(--fs-ink-soft);margin-top:12px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}

/* ---------- Footer ---------- */
.site-footer{background:#0A2C25;color:rgba(255,255,255,.72);margin-top:0;}
.site-footer .foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.3fr;gap:44px;padding:72px 0 46px;}
.site-footer .brand-name{color:#fff;}
.site-footer .brand-sub{color:rgba(255,255,255,.5);}
.site-footer .brand-mark{background:var(--fs-primary);color:#fff;}
.foot-brand p{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:34ch;}
.foot-col h4{font-size:14px;color:rgba(255,255,255,.55);font-weight:600;letter-spacing:.06em;margin-bottom:18px;}
.foot-col ul li{margin-bottom:12px;}
.foot-col ul li a{font-size:15px;color:rgba(255,255,255,.78);}
.foot-col ul li a:hover{color:var(--fs-accent);}
.foot-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.68);line-height:1.7;}
.foot-contact li i{color:var(--fs-accent);margin-top:5px;font-size:12px;}
.foot-bottom{border-top:1px solid var(--fs-line-dark);padding:22px 0 30px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.52);}

/* ---------- Responsive ---------- */
@media screen and (max-width:1023px){
  .section{padding:72px 0;}
  .section.tight{padding:56px 0;}
  .intro-panel{grid-template-columns:1fr;gap:32px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .svc-bar .svc-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .svc-item{border-left:0;border-top:1px solid var(--fs-line);padding:28px 0;}
  .svc-item:first-child{border-top:0;}
  .faq-wrap{grid-template-columns:1fr;gap:30px;}
  .cta-block{grid-template-columns:1fr;gap:34px;padding:40px 32px;}
  .compare{padding:34px 28px;}
  .site-footer .foot-grid{grid-template-columns:1fr 1fr;gap:36px;padding:56px 0 36px;}
  .head-search{display:none;}
  .head-phone{display:none;}
}
@media screen and (max-width:767px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .channel-bar{display:none;}
  .site-header.nav-open .channel-bar{display:block;}
  .channel-inner{height:auto;flex-direction:column;align-items:flex-start;gap:0;padding:10px 0 16px;}
  .channel-nav{flex-direction:column;align-items:flex-start;gap:0;width:100%;}
  .channel-nav a{width:100%;padding:12px 0;border-bottom:1px solid var(--fs-line);font-size:15.5px;}
  .channel-nav a::after{display:none;}
  .channel-nav a.active{color:var(--fs-primary);}
  .live-tag{margin-top:14px;}
  .compare-body{grid-template-columns:1fr;}
  .compare-col{padding:20px 0 4px;}
  .compare-col:last-child{padding-left:0;border-left:0;border-top:1px solid var(--fs-line-dark);margin-top:10px;}
}
@media screen and (max-width:639px){
  body{font-size:16px;}
  .brand-bar{height:64px;}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:15px;}
  .brand-name{font-size:17px;}
  .brand-sub{display:none;}
  .brand-head-right .btn-primary{display:none;}
  .asset-grid{grid-template-columns:1fr;gap:22px;}
  .steps{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .svc-bar .svc-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .section{padding:56px 0;}
  .section.tight{padding:48px 0;}
  .site-footer .foot-grid{grid-template-columns:1fr;gap:30px;}
  .cta-block{padding:30px 22px;}
  .faq-item summary{font-size:15.5px;padding-left:16px;}
  .compare-foot .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}