/* roulang page: index */
/* ============ 设计令牌 ============ */
:root{
  --c-primary:#10352B;
  --c-primary-deep:#0C1F1A;
  --c-accent:#16E0A3;
  --c-orange:#FF6B2C;
  --c-orange-hover:#E85A1E;
  --c-bg:#F5F6F3;
  --c-card:#FFFFFF;
  --c-border:#E3E7E0;
  --c-text:#1B211E;
  --c-muted:#5C6660;
  --c-faint:#8C948E;
  --c-soft:#EEF1EC;
  --c-success:#16A34A;
  --c-warn:#D97706;
  --c-error:#DC2626;
  --c-info:#0E7490;

  --r-block:20px;
  --r-card:14px;
  --r-img:12px;
  --r-badge:6px;
  --r-pill:999px;
  --r-input:10px;

  --sh-sm:0 1px 2px rgba(12,31,26,.06);
  --sh-md:0 8px 24px -8px rgba(12,31,26,.14);
  --sh-hover:0 14px 32px -10px rgba(12,31,26,.22);

  --sp:8px;
  --sec-pad:80px;
  --dur:180ms;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--c-orange);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-primary);letter-spacing:.01em;}
p{margin:0 0 1.25em;}
p:last-child{margin-bottom:0;}
figure{margin:0;}
table{border-collapse:collapse;width:100%;}
input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}

/* ============ 容器 ============ */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media(min-width:1280px){
  .container{max-width:1280px;}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:12px 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  letter-spacing:.02em;
  border:1.5px solid transparent;
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--c-orange);
  color:#fff;
  box-shadow:0 6px 18px -8px rgba(255,107,44,.75);
}
.btn-primary:hover{background:var(--c-orange-hover);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);background:#D14E15;color:#fff;}
.btn-ghost{
  background:transparent;
  color:var(--c-primary);
  border-color:var(--c-primary);
}
.btn-ghost:hover{background:var(--c-primary);color:#fff;}
.btn-ghost:active{background:var(--c-primary-deep);color:#fff;}
.btn-accent{
  background:transparent;
  color:var(--c-primary);
  border-color:var(--c-accent);
}
.btn-accent:hover{background:var(--c-accent);color:var(--c-primary-deep);}
.btn-sm{min-height:40px;padding:9px 20px;font-size:14px;}
.btn-block{width:100%;}
.btn:disabled,.btn.is-disabled{
  opacity:.45;
  cursor:not-allowed;
  transform:none;
  box-shadow:none;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:44px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
}
.text-link .arw{transition:transform var(--dur) var(--ease);display:inline-block;}
.text-link:hover{color:var(--c-orange);}
.text-link:hover .arw{transform:translateX(3px);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:5px;
  padding:3px 10px;
  border-radius:var(--r-badge);
  background:rgba(22,224,163,.14);
  color:#0B6B4E;
  font-size:12px;
  font-weight:600;
  line-height:1.5;
  letter-spacing:.02em;
}
.badge-dark{background:rgba(16,53,43,.08);color:var(--c-primary);}
.badge-orange{background:rgba(255,107,44,.12);color:#C24E17;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:#fff;
  border-bottom:1px solid var(--c-border);
  transition:height var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.site-header.scrolled{
  background:rgba(255,255,255,.94);
  box-shadow:var(--sh-md);
}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  height:72px;
  gap:16px;
  transition:height var(--dur) var(--ease);
}
.site-header.scrolled .header-inner{height:60px;}

.nav-main{display:flex;align-items:center;gap:6px;}
.nav-left{justify-content:flex-start;}
.nav-right{justify-content:flex-end;gap:12px;}
.nav-main a.nav-item{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 12px;
  font-size:15px;
  font-weight:600;
  color:var(--c-text);
  border-radius:8px;
}
.nav-main a.nav-item::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:6px;
  height:2px;
  background:var(--c-accent);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--dur) var(--ease);
  border-radius:2px;
}
.nav-main a.nav-item:hover{color:var(--c-primary);}
.nav-main a.nav-item:hover::after{transform:scaleX(1);}
.nav-main a.nav-item.active{color:var(--c-primary);}
.nav-main a.nav-item.active::after{transform:scaleX(1);}

.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:4px 8px;
  border-radius:10px;
}
.logo-mark{
  width:38px;height:38px;
  flex:0 0 38px;
  border-radius:11px;
  background:linear-gradient(135deg,var(--c-primary) 0%,#17513F 100%);
  display:flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:22px;height:22px;display:block;}
.logo-text{
  display:flex;
  flex-direction:column;
  line-height:1.15;
}
.logo-text b{
  font-size:18px;
  font-weight:800;
  color:var(--c-primary);
  letter-spacing:.02em;
}
.logo-text span{
  font-size:11px;
  color:var(--c-faint);
  letter-spacing:.12em;
  font-weight:500;
}
.logo:hover .logo-text b{color:var(--c-orange);}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  border:1px solid var(--c-border);
  background:#fff;
}
.nav-toggle:hover{background:var(--c-soft);}
.nav-toggle svg{width:22px;height:22px;transition:transform var(--dur) var(--ease);}
.nav-toggle[aria-expanded="true"] svg{transform:rotate(90deg);}

.mobile-panel{
  display:none;
  max-height:70vh;
  overflow-y:auto;
  border-top:1px solid var(--c-border);
  background:#fff;
}
.mobile-panel.open{display:block;}
.mobile-panel ul{padding:8px 0;}
.mobile-panel li{border-bottom:1px solid var(--c-border);}
.mobile-panel li:last-child{border-bottom:0;}
.mobile-panel a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:48px;
  padding:0 24px;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
}
.mobile-panel a:hover,.mobile-panel a.active{color:var(--c-primary);background:var(--c-soft);}
.mobile-panel .mp-cta{padding:16px 24px 22px;}

/* ============ Hero ============ */
.hero{
  background:linear-gradient(135deg,#0C1F1A 0%,#10352B 100%);
  padding:72px 0 80px;
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    repeating-linear-gradient(90deg,rgba(255,255,255,.035) 0 1px,transparent 1px 96px);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.hero-copy{color:#fff;}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:rgba(22,224,163,.14);
  border:1px solid rgba(22,224,163,.35);
  color:var(--c-accent);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
  margin-bottom:22px;
}
.hero h1{
  color:#fff;
  font-size:clamp(30px,4vw,44px);
  line-height:1.25;
  font-weight:700;
  margin-bottom:18px;
  letter-spacing:.01em;
}
.hero-sub{
  color:#B9C7C1;
  font-size:17px;
  line-height:1.75;
  max-width:32em;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-actions .btn-ghost{border-color:rgba(22,224,163,.7);color:var(--c-accent);}
.hero-actions .btn-ghost:hover{background:var(--c-accent);color:var(--c-primary-deep);border-color:var(--c-accent);}
.hero-metrics{
  display:flex;
  flex-wrap:wrap;
  gap:36px;
  padding-top:26px;
  border-top:1px solid rgba(255,255,255,.14);
}
.hero-metrics li{display:flex;flex-direction:column;gap:2px;}
.hero-metrics strong{
  font-size:24px;
  font-weight:800;
  color:var(--c-accent);
  letter-spacing:.02em;
  line-height:1.2;
}
.hero-metrics span{font-size:13px;color:#93A49D;}

.hero-media{
  position:relative;
  border-radius:var(--r-block);
  overflow:hidden;
  aspect-ratio:16/10;
  box-shadow:0 24px 60px -24px rgba(0,0,0,.65);
  background:linear-gradient(135deg,#163F33 0%,#0C1F1A 100%);
}
.hero-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 220ms var(--ease);
}
.hero-media:hover img{transform:scale(1.03);}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(16,53,43,.10);
  pointer-events:none;
}

/* ============ 信任数据条 ============ */
.trust-bar{
  background:#fff;
  border-top:1px solid var(--c-border);
  border-bottom:1px solid var(--c-border);
  padding:22px 0;
}
.trust-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.trust-item{
  display:flex;
  align-items:center;
  gap:12px;
}
.trust-ico{
  width:40px;height:40px;
  flex:0 0 40px;
  border-radius:11px;
  background:var(--c-soft);
  display:flex;align-items:center;justify-content:center;
}
.trust-ico svg{width:22px;height:22px;stroke:var(--c-primary);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.trust-txt strong{
  display:block;
  font-size:18px;
  font-weight:800;
  color:var(--c-primary);
  line-height:1.3;
  letter-spacing:.02em;
}
.trust-txt span{font-size:12px;color:var(--c-faint);}

/* ============ 板块通用 ============ */
.section{padding:var(--sec-pad) 0;}
.section-soft{background:var(--c-soft);}
.section-white{background:#fff;}

.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.sec-head h2{
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.35;
  font-weight:700;
  color:var(--c-primary);
  margin-bottom:10px;
}
.sec-head h2 em{
  font-style:normal;
  color:var(--c-orange);
}
.sec-head p{
  font-size:15px;
  color:var(--c-muted);
  margin:0;
  max-width:46em;
}

/* ============ 爆款网格 ============ */
.grid-hot{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.hot-card{
  background:var(--c-card);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.hot-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--sh-hover);
  border-color:#CFD8CF;
}
.hot-card-large{grid-column:span 2;}
.hot-media{
  position:relative;
  overflow:hidden;
  aspect-ratio:4/3;
  background:var(--c-soft);
}
.hot-card-large .hot-media{aspect-ratio:16/9;}
.hot-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 220ms var(--ease);
}
.hot-card:hover .hot-media img{transform:scale(1.03);}
.hot-body{
  padding:20px 20px 22px;
  display:flex;
  flex-direction:column;
  gap:12px;
  flex:1;
}
.hot-body h3{
  font-size:17px;
  line-height:1.5;
  font-weight:600;
  color:var(--c-text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.hot-card-large .hot-body h3{font-size:20px;}
.hot-points{display:flex;flex-direction:column;gap:6px;}
.hot-points li{
  position:relative;
  padding-left:14px;
  font-size:13px;
  color:var(--c-muted);
  line-height:1.6;
}
.hot-points li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--c-accent);
}
.hot-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px dashed var(--c-border);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}
.hot-num{
  display:flex;
  align-items:baseline;
  gap:6px;
  font-size:22px;
  font-weight:800;
  color:var(--c-orange);
  letter-spacing:.02em;
  line-height:1.2;
}
.hot-num em{font-style:normal;font-size:12px;font-weight:500;color:var(--c-faint);}
.hot-btns{display:flex;align-items:center;gap:10px;}

/* ============ 评价轮播 ============ */
.review-wrap{position:relative;}
.review-track{
  display:flex;
  gap:24px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:4px 2px 18px;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.review-track::-webkit-scrollbar{display:none;}
.review-card{
  flex:0 0 calc((100% - 48px)/3);
  scroll-snap-align:start;
  background:var(--c-card);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  padding:26px 24px;
  display:flex;
  flex-direction:column;
  gap:16px;
  min-height:238px;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.review-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);}
.stars{display:flex;gap:3px;}
.stars svg{width:17px;height:17px;fill:var(--c-orange);}
.review-card p{
  font-size:15px;
  line-height:1.8;
  color:var(--c-text);
  margin:0;
  flex:1;
}
.review-user{display:flex;align-items:center;gap:12px;}
.avatar{
  width:40px;height:40px;
  flex:0 0 40px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;
  font-weight:700;
  color:#fff;
  background:linear-gradient(135deg,#17513F,#10352B);
}
.review-user b{display:block;font-size:14px;font-weight:600;color:var(--c-text);line-height:1.4;}
.review-user span{font-size:12px;color:var(--c-faint);}
.review-nav{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:14px;
  margin-top:12px;
}
.rv-btn{
  width:40px;height:40px;
  border-radius:50%;
  border:1px solid var(--c-border);
  background:#fff;
  display:flex;align-items:center;justify-content:center;
  transition:background-color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.rv-btn svg{width:18px;height:18px;stroke:var(--c-primary);fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.rv-btn:hover{background:var(--c-primary);border-color:var(--c-primary);}
.rv-btn:hover svg{stroke:#fff;}
.dots{display:flex;gap:8px;align-items:center;}
.dots i{
  width:8px;height:8px;
  border-radius:50%;
  background:#CBD3CB;
  transition:background-color var(--dur) var(--ease),width var(--dur) var(--ease);
}
.dots i.on{background:var(--c-accent);width:22px;border-radius:999px;}

/* ============ 保障条 ============ */
.guarantee-bar{background:var(--c-soft);padding:56px 0;}
.guarantee-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.g-item{
  display:flex;
  gap:14px;
  align-items:flex-start;
}
.g-ico{
  width:38px;height:38px;
  flex:0 0 38px;
  border-radius:10px;
  background:#fff;
  border:1px solid var(--c-border);
  display:flex;align-items:center;justify-content:center;
}
.g-ico svg{width:20px;height:20px;stroke:var(--c-primary);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.g-item b{display:block;font-size:15px;font-weight:600;color:var(--c-primary);line-height:1.5;}
.g-item span{display:block;font-size:13px;color:var(--c-muted);line-height:1.7;}

/* ============ 最新信息 ============ */
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--c-card);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#CFD8CF;}
.news-thumb{
  display:block;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--c-soft);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 220ms var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{
  padding:18px 20px 20px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.news-body h3{
  font-size:17px;
  line-height:1.5;
  font-weight:600;
  color:var(--c-text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-body h3 a{color:inherit;}
.news-body h3 a:hover{color:var(--c-orange);}
.news-sum{
  font-size:14px;
  line-height:1.7;
  color:var(--c-muted);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin:0;
}
.news-foot{
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--c-border);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}
.news-foot .ntime{font-size:13px;color:var(--c-faint);}
.news-foot .ngo{
  display:inline-flex;align-items:center;gap:5px;
  font-size:13px;font-weight:600;color:var(--c-primary);
}
.news-foot .ngo .arw{transition:transform var(--dur) var(--ease);}
.news-card:hover .news-foot .ngo{color:var(--c-orange);}
.news-card:hover .news-foot .ngo .arw{transform:translateX(3px);}

.news-empty{
  grid-column:1/-1;
  min-height:170px;
  border:1px dashed var(--c-border);
  border-radius:var(--r-card);
  background:#fff;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:10px;
  color:var(--c-faint);
  font-size:15px;
}
.news-empty svg{width:34px;height:34px;stroke:#B7C1B8;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.news-empty a{color:var(--c-primary);font-weight:600;}

/* ============ CTA 大条 ============ */
.cta-bar{
  background:linear-gradient(135deg,#0C1F1A 0%,#10352B 100%);
  border-radius:var(--r-block);
  padding:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  position:relative;
  overflow:hidden;
}
.cta-bar::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 80px);
  pointer-events:none;
}
.cta-txt{position:relative;color:#fff;max-width:60%;}
.cta-txt h2{
  color:#fff;
  font-size:clamp(22px,2.4vw,30px);
  line-height:1.4;
  margin-bottom:12px;
}
.cta-txt p{color:#A9B6B0;font-size:15px;margin:0;}
.cta-actions{
  position:relative;
  display:flex;
  align-items:center;
  gap:18px;
  flex-wrap:wrap;
}
.cta-actions .text-link{color:#fff;}
.cta-actions .text-link:hover{color:var(--c-accent);}

/* ============ FAQ ============ */
.faq-block{max-width:880px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--c-border);}
.faq-item:first-child{border-top:1px solid var(--c-border);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:56px;
  padding:16px 4px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--c-primary);}
.faq-q .pm{
  position:relative;
  width:20px;height:20px;
  flex:0 0 20px;
}
.faq-q .pm::before,
.faq-q .pm::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--c-primary);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform var(--dur) var(--ease),background-color var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.faq-q .pm::before{width:14px;height:2px;}
.faq-q .pm::after{width:2px;height:14px;}
.faq-item.open .faq-q{color:var(--c-primary);}
.faq-item.open .faq-q .pm::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 220ms var(--ease);
}
.faq-a p{
  font-size:15px;
  line-height:1.85;
  color:var(--c-muted);
  padding:0 44px 20px 4px;
  margin:0;
}
.faq-item.open .faq-a{max-height:340px;}

/* ============ 页脚 ============ */
.site-footer{
  background:#0C1F1A;
  color:#A9B6B0;
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.f-brand .logo-text b{color:#fff;}
.f-brand .logo-text span{color:#6E807A;}
.f-brand .logo-mark{background:linear-gradient(135deg,#17513F,#0C1F1A);border:1px solid rgba(22,224,163,.35);}
.f-brand p{
  margin-top:18px;
  font-size:14px;
  line-height:1.8;
  color:#8E9B95;
  max-width:34em;
}
.f-col h3{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.f-col ul{display:flex;flex-direction:column;gap:10px;}
.f-col a{
  font-size:14px;
  color:#A9B6B0;
  transition:color var(--dur) var(--ease);
}
.f-col a:hover{color:var(--c-accent);}
.f-info li{
  display:flex;
  gap:10px;
  font-size:14px;
  line-height:1.7;
  color:#A9B6B0;
}
.f-info svg{
  width:16px;height:16px;
  flex:0 0 16px;
  margin-top:5px;
  stroke:var(--c-accent);
  fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#7E8C86;
}
.footer-bottom a{color:#7E8C86;}
.footer-bottom a:hover{color:var(--c-accent);}

/* ============ 响应式 ============ */
@media(max-width:1279px){
  .container{padding:0 24px;}
}

@media(max-width:1023px){
  :root{--sec-pad:56px;}
  .header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:12px;}
  .nav-left,.nav-right{display:none;}
  .nav-toggle{display:flex;}
  .hero{padding:52px 0 60px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-media{aspect-ratio:16/9;max-height:340px;}
  .trust-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .grid-hot{grid-template-columns:repeat(2,1fr);}
  .hot-card-large{grid-column:span 2;}
  .review-card{flex:0 0 calc((100% - 24px)/2);}
  .guarantee-grid{grid-template-columns:repeat(2,1fr);}
  .news-list{grid-template-columns:repeat(2,1fr);}
  .cta-bar{padding:44px;flex-direction:column;align-items:flex-start;gap:28px;}
  .cta-txt{max-width:100%;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
}

@media(max-width:767px){
  :root{--sec-pad:48px;}
  .container{padding:0 20px;}
  .trust-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
  .trust-ico{width:36px;height:36px;flex:0 0 36px;}
  .trust-txt strong{font-size:16px;}
  .grid-hot{grid-template-columns:1fr;}
  .hot-card-large{grid-column:span 1;}
  .hot-card-large .hot-media{aspect-ratio:16/9;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .review-card{flex:0 0 84%;}
  .news-list{grid-template-columns:1fr;}
  .cta-bar{padding:32px 24px;border-radius:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-metrics{gap:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .faq-a p{padding-right:20px;}
}

@media(max-width:479px){
  .guarantee-grid{grid-template-columns:1fr;}
  .trust-grid{grid-template-columns:1fr;}
  .hero-media{max-height:260px;}
  .hot-foot{flex-direction:column;align-items:flex-start;}
  .hot-btns{width:100%;justify-content:space-between;}
}

/* roulang page: category1 */
/* ===== 设计令牌 ===== */
:root{
  --brand:#10352B;
  --brand-deep:#0C1F1A;
  --brand-soft:#1A4A3C;
  --accent:#16E0A3;
  --accent-ink:#0B7A5B;
  --accent-soft:rgba(22,224,163,.12);
  --orange:#FF6B2C;
  --orange-dark:#E85A1E;
  --orange-soft:rgba(255,107,44,.12);

  --bg:#F5F6F3;
  --card:#FFFFFF;
  --soft:#EEF1EC;
  --line:#E3E7E0;
  --line-strong:#D5DBD2;

  --text:#1B211E;
  --text-2:#5C6660;
  --text-3:#8C948E;
  --on-dark:#F2F7F4;
  --on-dark-2:#A9B6B0;

  --ok:#16A34A;
  --warn:#D97706;
  --err:#DC2626;
  --info:#0E7490;

  --r-xl:24px;
  --r-lg:20px;
  --r-md:14px;
  --r-img:12px;
  --r-badge:6px;
  --r-input:10px;
  --r-pill:999px;

  --sh-sm:0 1px 2px rgba(12,31,26,.06);
  --sh-md:0 8px 24px -8px rgba(12,31,26,.14);
  --sh-hover:0 14px 32px -10px rgba(12,31,26,.22);

  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:190ms;

  --sp:8px;
  --container:1200px;
  --header-h:72px;
  --header-h-sm:60px;

  --grad-dark:linear-gradient(135deg,#0C1F1A 0%,#10352B 100%);
  --font: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}

/* ===== Reset / Base ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--accent-ink);text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--orange)}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:16px;color:var(--text)}
svg{display:block}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
::selection{background:var(--accent-soft);color:var(--brand)}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1280px){ .container{max-width:1280px} }

.skip-link{
  position:absolute;left:16px;top:-60px;z-index:200;
  background:var(--brand);color:#fff;padding:10px 18px;border-radius:var(--r-pill);
  transition:top var(--dur) var(--ease);
}
.skip-link:focus{top:12px;color:#fff}

/* ===== 通用标题与文本 ===== */
.h1{font-size:clamp(30px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35;font-weight:700;letter-spacing:-.005em}
.h3{font-size:20px;line-height:1.4;font-weight:600}
.lead{font-size:17px;line-height:1.8;color:var(--text-2)}
.muted{color:var(--text-2)}
.small{font-size:14px;line-height:1.7}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-badge);
  background:var(--accent-soft);color:var(--brand);
  font-size:12px;line-height:1.4;font-weight:600;letter-spacing:.02em;
}
.tag--orange{background:var(--orange-soft);color:#B8430F}
.tag--dark{background:rgba(255,255,255,.1);color:var(--accent)}

.section{padding:80px 0}
.section--tight{padding:56px 0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:36px;flex-wrap:wrap;
}
.section-head p{color:var(--text-2);font-size:15px;line-height:1.7;max-width:620px;margin-top:8px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform var(--dur) var(--ease),background-color var(--dur) var(--ease),color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 18px -8px rgba(255,107,44,.6)}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);background:#D14E17}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:var(--brand);color:#fff}
.btn-ghost:active{background:var(--brand-deep);color:#fff}
.btn-light{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.26)}
.btn-light:hover{background:rgba(255,255,255,.16);color:#fff;transform:translateY(-1px)}
.btn-sm{min-height:40px;padding:9px 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand);
}
.link-arrow svg{transition:transform var(--dur) var(--ease)}
.link-arrow:hover{color:var(--orange)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(245,246,243,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  box-shadow:var(--sh-md);
}
.header-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:20px;height:var(--header-h);
  transition:height var(--dur) var(--ease);
}
.site-header.is-scrolled .header-inner{height:var(--header-h-sm)}

.nav-main{display:flex;align-items:center;gap:28px}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end}
.nav-item{
  position:relative;display:inline-flex;align-items:center;
  height:44px;font-size:15px;font-weight:500;color:var(--text-2);
  transition:color var(--dur) var(--ease);
}
.nav-item::after{
  content:"";position:absolute;left:50%;bottom:6px;translate:-50% 0;
  width:0;height:2px;background:var(--accent);border-radius:2px;
  transition:width var(--dur) var(--ease);
}
.nav-item:hover{color:var(--brand)}
.nav-item:hover::after{width:60%}
.nav-item.active{color:var(--brand);font-weight:600}
.nav-item.active::after{width:100%}

.logo{
  display:inline-flex;align-items:center;gap:10px;
  justify-self:center;
}
.logo-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:grid;place-items:center;
  border-radius:11px;
  background:var(--brand);
  transition:transform var(--dur) var(--ease);
}
.logo-mark svg{width:22px;height:22px}
.logo:hover .logo-mark{transform:rotate(-6deg) scale(1.04)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:18px;font-weight:700;color:var(--brand);letter-spacing:.01em}
.logo-text span{font-size:11px;color:var(--text-3);letter-spacing:.14em}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;justify-self:end;
  transition:background-color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.nav-toggle:hover{background:var(--soft);border-color:var(--line-strong)}
.nav-toggle svg{width:22px;height:22px;stroke:var(--brand)}
.nav-toggle .ico-close{display:none}
.nav-toggle.is-open .ico-menu{display:none}
.nav-toggle.is-open .ico-close{display:block}

.mobile-panel{
  display:none;max-height:0;overflow:hidden;
  border-top:1px solid var(--line);background:#fff;
  transition:max-height 240ms var(--ease);
}
.mobile-panel.is-open{max-height:70vh;overflow-y:auto}
.mobile-panel ul{padding:8px 0}
.mobile-panel li{border-bottom:1px solid var(--line)}
.mobile-panel li:last-child{border-bottom:0}
.mobile-panel a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 24px;font-size:15px;font-weight:500;color:var(--text);
}
.mobile-panel a:hover{background:var(--soft);color:var(--brand)}
.mobile-panel a.active{color:var(--brand);font-weight:600;background:var(--soft)}
.mobile-cta{padding:16px 24px 24px}
.mobile-cta .btn{width:100%}

/* ===== 面包屑 ===== */
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;line-height:1.4;color:var(--text-3);
  padding:20px 0 0;
  overflow-x:auto;white-space:nowrap;
  scrollbar-width:none;
}
.breadcrumb::-webkit-scrollbar{display:none}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--accent-ink)}
.breadcrumb .sep{color:var(--line-strong)}
.breadcrumb .current{color:var(--brand);font-weight:600}

/* ===== 分类页头 ===== */
.cat-hero{
  position:relative;overflow:hidden;
  margin-top:20px;
  border-radius:var(--r-lg);
  background:var(--grad-dark);
  color:var(--on-dark);
  padding:48px;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(22,224,163,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(22,224,163,.07) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 78% 30%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 78% 30%,#000 0%,transparent 72%);
  pointer-events:none;
}
.cat-hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.35fr .95fr;gap:48px;align-items:center;
}
.cat-hero h1{color:#fff;margin:18px 0 18px;max-width:16em}
.cat-hero .lead{color:var(--on-dark-2);max-width:34em;font-size:16px}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cat-hero-media{
  border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:16/10;background:var(--brand-soft);
  box-shadow:0 24px 48px -22px rgba(0,0,0,.65);
}
.cat-hero-media img{width:100%;height:100%;object-fit:cover}
.img-fail{background:var(--soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2310352B' stroke-width='1.6'%3E%3Crect x='3' y='4.5' width='18' height='15' rx='2.5'/%3E%3Cpath d='m4.5 17 5-5.5 3.5 3.5 3-3L20 16'/%3E%3C/svg%3E") center/48px no-repeat;
  color:transparent;font-size:0;
}

/* ===== 数据条 ===== */
.trust-bar{
  background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin-top:32px;border-radius:var(--r-md);
}
.trust-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
}
.trust-item{
  display:flex;align-items:center;gap:14px;
  padding:22px 24px;border-right:1px solid var(--line);
}
.trust-item:last-child{border-right:0}
.trust-ico{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  display:grid;place-items:center;background:var(--accent-soft);
}
.trust-ico svg{width:22px;height:22px;stroke:var(--accent-ink);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.trust-item b{display:block;font-size:20px;font-weight:700;color:var(--brand);line-height:1.2}
.trust-item span{display:block;font-size:12px;color:var(--text-3);line-height:1.5;margin-top:2px}

/* ===== 图文交替模块 ===== */
.split-stack{display:flex;flex-direction:column;gap:72px}
.split-row{
  display:flex;gap:56px;align-items:center;
}
.split-row.is-flip{flex-direction:row-reverse}
.split-media{
  flex:0 0 41.6%;
  border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:16/10;background:var(--soft);
  box-shadow:var(--sh-md);
}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform 220ms var(--ease)}
.split-row:hover .split-media img{transform:scale(1.03)}
.split-body{flex:1 1 auto;min-width:0}
.split-body h2{margin:14px 0 16px;color:var(--brand)}
.split-body p{color:var(--text-2);font-size:16px;line-height:1.85}
.split-body p + p{margin-top:1.25em}

.mini-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.mini-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;line-height:1.7;color:var(--text);
}
.mini-list li::before{
  content:"";flex:0 0 6px;width:6px;height:6px;margin-top:9px;
  border-radius:2px;background:var(--accent);
}

.split-metric{
  display:flex;gap:28px;margin-top:24px;flex-wrap:wrap;
}
.split-metric div{min-width:96px}
.split-metric b{display:block;font-size:26px;line-height:1.2;font-weight:700;color:var(--orange)}
.split-metric span{display:block;font-size:12px;color:var(--text-3);letter-spacing:.02em;margin-top:2px}

/* ===== 要点卡片（2 列） ===== */
.point-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:24px;
}
.point-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px;display:flex;gap:18px;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.point-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:var(--line-strong)}
.point-num{
  flex:0 0 44px;width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--brand);color:var(--accent);
  font-size:16px;font-weight:700;letter-spacing:.02em;
}
.point-card h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px;color:var(--text)}
.point-card p{font-size:14.5px;line-height:1.75;color:var(--text-2)}
.point-card .tag{margin-top:14px}

/* ===== 分类内链块 ===== */
.cross-link{
  background:var(--soft);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:36px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;
}
.cross-link .cl-body{max-width:60ch}
.cross-link h2{font-size:22px;font-weight:700;color:var(--brand);margin:12px 0 10px}
.cross-link p{font-size:15px;line-height:1.75;color:var(--text-2)}

/* ===== CTA 大条 ===== */
.cta-bar{
  background:var(--grad-dark);
  border-radius:var(--r-lg);
  padding:56px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  color:var(--on-dark);position:relative;overflow:hidden;
}
.cta-bar::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;
  border-radius:50%;border:1px solid rgba(22,224,163,.22);
  pointer-events:none;
}
.cta-bar .cta-copy{position:relative;z-index:2;max-width:58ch}
.cta-bar h2{color:#fff;font-size:clamp(22px,2.4vw,30px);line-height:1.35;font-weight:700}
.cta-bar p{color:var(--on-dark-2);font-size:15px;line-height:1.75;margin-top:12px}
.cta-actions{position:relative;z-index:2;display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.cta-bar .link-arrow{color:#fff}
.cta-bar .link-arrow:hover{color:var(--accent)}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--brand-deep);
  color:var(--on-dark-2);
  margin-top:88px;
  padding:64px 0 0;
  font-size:14px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;
}
.f-brand .logo{justify-self:flex-start;margin-bottom:18px}
.f-brand .logo-mark{background:rgba(255,255,255,.06)}
.f-brand .logo-text b{color:#fff}
.f-brand .logo-text span{color:var(--on-dark-2)}
.f-brand p{line-height:1.8;color:var(--on-dark-2);max-width:38ch;font-size:13.5px}
.f-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.f-col ul{display:flex;flex-direction:column;gap:12px}
.f-col a{color:var(--on-dark-2);font-size:14px}
.f-col a:hover{color:var(--accent)}
.f-info li{display:flex;gap:10px;align-items:flex-start;line-height:1.7;color:var(--on-dark-2);font-size:13.5px}
.f-info svg{width:17px;height:17px;flex:0 0 17px;margin-top:4px;stroke:var(--accent);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8A9993;
}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .container{max-width:1200px}
}

@media (max-width:1023px){
  .nav-main{display:none}
  .header-inner{grid-template-columns:auto 1fr auto;height:64px}
  .logo{justify-self:start}
  .nav-toggle{display:inline-flex}
  .mobile-panel{display:block}
  .section{padding:56px 0}
  .section--tight{padding:44px 0}
  .cat-hero{padding:36px}
  .cat-hero-grid{grid-template-columns:1fr;gap:28px}
  .cat-hero-media{aspect-ratio:16/9}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .trust-item:nth-child(2){border-right:0}
  .trust-item:nth-child(1),.trust-item:nth-child(2){border-bottom:1px solid var(--line)}
  .split-stack{gap:56px}
  .split-row,.split-row.is-flip{flex-direction:column;gap:28px}
  .split-media{flex:0 0 auto;width:100%}
  .cta-bar{padding:40px;flex-direction:column;align-items:flex-start;gap:28px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .site-footer{margin-top:64px}
}

@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .point-grid{grid-template-columns:1fr;gap:16px}
  .point-card{padding:22px}
  .cat-hero{padding:28px 22px;border-radius:var(--r-md)}
  .cat-hero-media{aspect-ratio:16/10;max-height:260px}
  .cat-hero-actions{gap:12px}
  .cat-hero-actions .btn{width:100%}
  .trust-item{padding:18px 16px}
  .trust-item b{font-size:17px}
  .cross-link{padding:26px 22px}
  .cross-link .btn{width:100%}
  .cta-bar{padding:32px 22px;border-radius:var(--r-md)}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .link-arrow{justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .split-metric{gap:20px}
}

@media (max-width:479px){
  body{font-size:15.5px}
  .logo-text span{display:none}
  .split-body p{font-size:15px}
  .trust-grid{grid-template-columns:1fr}
  .trust-item{border-right:0;border-bottom:1px solid var(--line)}
  .trust-item:last-child{border-bottom:0}
}

/* roulang page: article */
:root{
  --ink:#10352B;
  --ink-deep:#0C1F1A;
  --mint:#16E0A3;
  --orange:#FF6B2C;
  --orange-dark:#E85A18;
  --bg:#F5F6F3;
  --card:#FFFFFF;
  --line:#E3E7E0;
  --text:#1B211E;
  --muted:#5C6660;
  --weak:#8C948E;
  --soft:#EEF1EC;
  --ok:#16A34A;
  --warn:#D97706;
  --err:#DC2626;
  --info:#0E7490;
  --r-big:20px;
  --r-card:14px;
  --r-img:12px;
  --r-badge:6px;
  --r-input:10px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(12,31,26,.06);
  --sh-md:0 8px 24px -8px rgba(12,31,26,.14);
  --sh-hover:0 14px 32px -10px rgba(12,31,26,.22);
  --t:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;background:var(--soft)}
img.img-failed{background:var(--soft);min-height:120px}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1280px){.container{max-width:1280px}}
@media (max-width:767px){.container{padding:0 20px}}

/* ============ 按钮 / 链接组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 18px -8px rgba(255,107,44,.75)}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-1px);box-shadow:0 12px 22px -10px rgba(255,107,44,.8)}
.btn-primary:active{transform:translateY(0);background:#D14F13}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);transition:color var(--t)}
.link-arrow svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--t)}
.link-arrow:hover{color:var(--orange)}
.link-arrow:hover svg{transform:translateX(3px)}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:var(--r-badge);background:rgba(22,224,163,.14);color:#0D6B4F;
  font-size:12px;font-weight:600;letter-spacing:.02em;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.95);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t),background-color var(--t);
}
.site-header.scrolled{background:#fff;box-shadow:var(--sh-md)}
.header-inner{display:flex;align-items:center;gap:12px;height:72px;transition:height var(--t)}
.site-header.scrolled .header-inner{height:60px}
.nav-main{display:flex;align-items:center;gap:6px;flex:1}
.nav-right{justify-content:flex-end}
.nav-item{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  border-radius:10px;font-size:15px;color:var(--text);
  transition:color var(--t),background-color var(--t);
}
.nav-item:hover{color:var(--ink);background:rgba(22,224,163,.10)}
.nav-item.active{color:var(--ink);font-weight:600}
.nav-item.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--mint);border-radius:2px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;padding:6px 8px;border-radius:14px}
.logo-mark{width:36px;height:36px;border-radius:10px;background:var(--ink);display:grid;place-items:center;flex:0 0 36px}
.logo-mark svg{width:22px;height:22px}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--ink)}
.logo-text span{font-size:11px;color:var(--weak);letter-spacing:.06em}
.nav-toggle{
  display:none;position:relative;width:44px;height:44px;flex:0 0 44px;
  border:1px solid var(--line);background:#fff;border-radius:12px;cursor:pointer;margin-left:auto;
}
.nav-toggle span{position:absolute;left:12px;right:12px;height:2px;background:var(--ink);border-radius:2px;transition:transform var(--t),opacity var(--t)}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:27px}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-panel{
  position:absolute;left:0;right:0;top:100%;
  background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-md);
  max-height:70vh;overflow:auto;padding:6px 20px 20px;
}
.mobile-panel[hidden]{display:none}
.m-item{
  display:flex;align-items:center;height:48px;font-size:16px;color:var(--text);
  border-bottom:1px solid var(--line);transition:color var(--t);
}
.m-item:hover,.m-item.active{color:var(--ink);font-weight:600}
.mobile-panel .btn{margin-top:16px}
@media (max-width:1023px){
  .nav-main{display:none}
  .nav-toggle{display:block}
  .header-inner{justify-content:space-between}
  .logo{margin-right:auto}
}

/* ============ 面包屑 ============ */
.breadcrumb{padding-top:22px}
.breadcrumb ol{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--weak);
  overflow-x:auto;white-space:nowrap;scrollbar-width:none;
}
.breadcrumb ol::-webkit-scrollbar{display:none}
.breadcrumb li{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.breadcrumb li+li::before{content:"/";color:#C4CBC6}
.breadcrumb a{color:var(--muted);transition:color var(--t)}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb [aria-current="page"]{color:var(--muted);max-width:46vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头 ============ */
.article-head{padding:18px 0 26px;border-bottom:1px solid var(--line)}
.article-head h1{
  font-size:clamp(28px,3.4vw,42px);line-height:1.28;font-weight:700;
  letter-spacing:-.01em;margin:14px 0 16px;max-width:900px;
}
.meta-list{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:14px;color:var(--weak)}
.meta-list span{display:inline-flex;align-items:center;gap:6px}
.meta-list b{color:var(--muted);font-weight:600}
.article-lead{font-size:16px;color:var(--muted);max-width:760px;margin-top:14px}

/* ============ 正文布局 ============ */
.article-wrap{padding:36px 0 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start;padding-bottom:64px}
.article-main{max-width:800px;min-width:0}
.article-body{font-size:16px;line-height:1.85;color:var(--text)}
.article-body>p{margin:0 0 1.25em}
.article-body h2{
  font-size:clamp(22px,2.4vw,28px);line-height:1.35;font-weight:700;
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--mint);
}
.article-body h3{font-size:21px;line-height:1.4;font-weight:600;margin:28px 0 12px}
.article-body h4{font-size:18px;line-height:1.45;font-weight:600;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.25em}
.article-body ul li{position:relative;padding-left:18px;margin-bottom:8px}
.article-body ul li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;background:var(--mint);border-radius:1px}
.article-body ol{counter-reset:oli}
.article-body ol li{position:relative;padding-left:26px;margin-bottom:8px;counter-increment:oli}
.article-body ol li::before{
  content:counter(oli);position:absolute;left:0;top:.28em;
  width:18px;height:18px;border-radius:50%;background:rgba(22,224,163,.18);
  color:#0D6B4F;font-size:12px;font-weight:700;display:grid;place-items:center;line-height:1;
}
.article-body blockquote{
  margin:20px 0;padding:14px 18px;border-left:3px solid var(--ink);
  background:var(--soft);border-radius:0 var(--r-img) var(--r-img) 0;color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--ink);text-decoration:underline;text-decoration-color:var(--mint);text-underline-offset:3px;transition:color var(--t),text-decoration-color var(--t)}
.article-body a:hover{color:var(--orange);text-decoration-color:var(--orange)}
.article-body img{width:100%;border-radius:var(--r-img);margin:18px 0 6px}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:13px;color:var(--weak);text-align:center;margin-top:6px}
.article-body .table-wrap{overflow-x:auto;margin:0 0 1.25em;border:1px solid var(--line);border-radius:var(--r-img);background:#fff}
.article-body table{width:100%;min-width:520px;border-collapse:collapse;font-size:15px}
.article-body th{background:var(--ink);color:#fff;text-align:left;font-weight:600;padding:12px 14px}
.article-body td{padding:12px 14px;border-top:1px solid var(--line);color:var(--muted)}
.article-body pre{
  overflow-x:auto;background:var(--ink-deep);color:#DCEAE4;
  padding:16px 18px;border-radius:var(--r-img);font-size:14px;line-height:1.75;margin:0 0 1.25em;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* 空状态 */
.empty-state{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:44px 24px;text-align:center;box-shadow:var(--sh-sm);
}
.empty-state svg{width:38px;height:38px;fill:none;stroke:var(--weak);stroke-width:1.6;margin:0 auto 14px}
.empty-state h2{font-size:20px;font-weight:600;margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--weak);margin-bottom:18px}

/* 标签 / 分享 */
.article-foot{margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-row .tag-label{font-size:13px;color:var(--weak);font-weight:600}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;
  border-radius:var(--r-badge);background:rgba(22,224,163,.13);color:#0D6B4F;
  font-size:13px;font-weight:600;transition:background-color var(--t),color var(--t);
}
.tag:hover{background:var(--ink);color:#fff}
.share-row{display:flex;align-items:center;gap:12px;margin-top:20px;flex-wrap:wrap}
.share-row>span{font-size:13px;color:var(--weak)}
.share-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;cursor:pointer;transition:border-color var(--t),background-color var(--t),transform var(--t);
}
.share-btn svg{width:18px;height:18px;fill:none;stroke:var(--ink);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.share-btn:hover{border-color:var(--mint);background:rgba(22,224,163,.10);transform:translateY(-2px)}
.share-tip{
  font-size:13px;color:var(--ok);opacity:0;transition:opacity var(--t);
}
.share-tip.show{opacity:1}
.back-row{margin-top:28px}

/* ============ 侧栏 ============ */
.article-aside{position:sticky;top:96px;display:grid;gap:18px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-sm)}
.side-title{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--mint)}
.side-list{display:grid;gap:12px}
.side-list a{display:flex;gap:8px;font-size:14px;color:var(--muted);line-height:1.6;transition:color var(--t)}
.side-list a::before{content:"";flex:0 0 6px;width:6px;height:6px;margin-top:.6em;background:var(--line);border-radius:1px;transition:background-color var(--t)}
.side-list a:hover{color:var(--ink)}
.side-list a:hover::before{background:var(--mint)}
.side-note{font-size:13px;line-height:1.8;color:var(--weak)}
.side-cta{display:block;margin-top:16px}

/* ============ 相关推荐 ============ */
.related{padding:56px 0 8px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.section-head h2{font-size:clamp(22px,2.4vw,28px);line-height:1.35;font-weight:700;color:var(--ink)}
.section-head p{font-size:14px;color:var(--muted);margin-top:6px}
.related-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-list .card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  display:flex;flex-direction:column;
}
.related-list .card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#D6DED7}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform var(--t)}
.related-list .card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:17px;font-weight:600;line-height:1.5;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-text{font-size:14px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--weak);padding-top:8px;border-top:1px solid var(--line)}
.card-foot svg{width:16px;height:16px;fill:none;stroke:var(--ink);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--t)}
.related-list .card:hover .card-foot svg{transform:translateX(3px)}
@media (max-width:1023px){
  .article-layout{grid-template-columns:1fr;gap:40px}
  .article-aside{position:static;grid-template-columns:repeat(2,1fr);display:grid}
  .related-list{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  .article-aside{grid-template-columns:1fr}
  .related-list{grid-template-columns:1fr}
  .article-main{max-width:none}
}

/* ============ CTA 大条 ============ */
.cta-bar{
  margin:72px 0 0;border-radius:var(--r-big);
  background:linear-gradient(135deg,#0C1F1A 0%,#10352B 100%);
  color:#fff;padding:56px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-md);
}
.cta-bar h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;color:#fff}
.cta-bar p{font-size:15px;color:#A9B6B0;margin-top:10px;max-width:560px}
.cta-actions{display:flex;align-items:center;gap:20px;flex:0 0 auto}
.cta-bar .link-arrow{color:#fff}
.cta-bar .link-arrow:hover{color:var(--mint)}
@media (max-width:767px){
  .cta-bar{flex-direction:column;align-items:stretch;padding:32px 22px;gap:22px;margin-top:52px}
  .cta-actions{flex-direction:column;align-items:stretch;gap:14px}
  .cta-actions .btn{width:100%}
}

/* ============ FAQ ============ */
.faq-block{padding:72px 0 0}
.faq-block .faq-head{margin-bottom:20px}
.faq-block h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;color:var(--ink)}
.faq-block .faq-head p{font-size:14px;color:var(--muted);margin-top:8px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;min-height:60px;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:none;border:0;padding:14px 2px;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.5;
  transition:color var(--t);
}
.faq-q:hover{color:var(--ink)}
.faq-icon{
  position:relative;flex:0 0 24px;width:24px;height:24px;border-radius:50%;
  border:1px solid var(--line);transition:transform var(--t),border-color var(--t),background-color var(--t);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:1px;transition:background-color var(--t),opacity var(--t);
}
.faq-icon::before{left:6px;right:6px;top:10.5px;height:2px}
.faq-icon::after{top:6px;bottom:6px;left:10.5px;width:2px}
.faq-item.open .faq-icon{transform:rotate(180deg);border-color:var(--mint);background:rgba(22,224,163,.12)}
.faq-item.open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms ease-out}
.faq-a p{font-size:15px;line-height:1.85;color:var(--muted);padding:0 40px 18px 0}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:80px;padding-top:64px;
  background:linear-gradient(135deg,#0C1F1A 0%,#10352B 100%);
  color:#A9B6B0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px}
.f-brand .logo{padding:0}
.site-footer .logo-mark{background:rgba(255,255,255,.08)}
.site-footer .logo-text b{color:#fff}
.site-footer .logo-text span{color:#8C948E}
.f-brand p{font-size:14px;line-height:1.8;color:#A9B6B0;margin-top:16px;max-width:330px}
.f-col h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.f-col ul{display:grid;gap:10px}
.f-col a{font-size:14px;color:#A9B6B0;transition:color var(--t)}
.f-col a:hover{color:var(--mint)}
.f-info li{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.7}
.f-info svg{width:18px;height:18px;flex:0 0 18px;margin-top:3px;fill:none;stroke:var(--mint);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8C948E;
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .site-footer{padding-top:48px;margin-top:56px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .article-head h1{font-size:26px}
  .related-list{gap:18px}
}

/* roulang page: category2 */
:root{
  --c-primary:#10352B;
  --c-primary-deep:#0C1F1A;
  --c-accent:#16E0A3;
  --c-orange:#FF6B2C;
  --c-orange-dark:#E85A1C;
  --bg-page:#F5F6F3;
  --bg-card:#FFFFFF;
  --bg-soft:#EEF1EC;
  --border:#E3E7E0;
  --text:#1B211E;
  --text-2:#5C6660;
  --text-3:#8C948E;
  --ok:#16A34A;
  --warn:#D97706;
  --err:#DC2626;
  --info:#0E7490;
  --r-lg:20px;
  --r-md:14px;
  --r-img:12px;
  --r-badge:6px;
  --r-pill:999px;
  --r-input:10px;
  --sh-sm:0 1px 2px rgba(12,31,26,.06);
  --sh-md:0 8px 24px -8px rgba(12,31,26,.14);
  --sh-hover:0 14px 32px -10px rgba(12,31,26,.22);
  --sp:8px;
  --ease:150ms ease-out;
  --ease2:220ms ease-out;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--c-orange);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1280px){
  .container{max-width:1280px;}
}
.section{padding:80px 0;}
.section--tight{padding:56px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.section-head h2{
  font-size:28px;
  line-height:1.35;
  font-weight:700;
  color:var(--c-primary);
  letter-spacing:.01em;
}
.section-head p{
  color:var(--text-2);
  font-size:14px;
  margin-top:8px;
  max-width:640px;
}
.link-more{
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
  white-space:nowrap;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.link-more svg{width:16px;height:16px;transition:transform var(--ease);}
.link-more:hover{color:var(--c-orange);}
.link-more:hover svg{transform:translateX(3px);}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#FFFFFF;
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--ease2),background var(--ease2);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  box-shadow:var(--sh-md);
  border-bottom-color:transparent;
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:72px;
  transition:height var(--ease2);
}
.site-header.is-scrolled .header-inner{height:60px;}
.nav-main{display:flex;align-items:center;gap:6px;}
.nav-main.nav-left{flex:1 1 0;justify-content:flex-start;}
.nav-main.nav-right{flex:1 1 0;justify-content:flex-end;gap:10px;}
.nav-item{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 12px;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  border-radius:10px;
  transition:color var(--ease),background var(--ease);
}
.nav-item::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:4px;
  height:2px;
  border-radius:2px;
  background:var(--c-accent);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform var(--ease2);
}
.nav-item:hover{color:var(--c-primary);background:var(--bg-soft);}
.nav-item.active{color:var(--c-primary);font-weight:600;}
.nav-item.active::after{transform:scaleX(1);}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.logo{display:inline-flex;align-items:center;gap:10px;}
.logo-mark{
  width:36px;
  height:36px;
  flex:0 0 36px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:11px;
  background:linear-gradient(135deg,#0C1F1A,#10352B);
}
.logo-mark svg{width:22px;height:22px;}
.logo-text{display:inline-flex;flex-direction:column;line-height:1.15;}
.logo-text b{
  font-size:18px;
  font-weight:700;
  color:var(--c-primary);
  letter-spacing:.01em;
}
.logo-text span{
  font-size:11px;
  color:var(--text-3);
  letter-spacing:.06em;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 24px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease),opacity var(--ease);
}
.btn-primary{
  background:var(--c-orange);
  color:#fff;
  box-shadow:0 8px 20px -10px rgba(255,107,44,.7);
}
.btn-primary:hover{background:var(--c-orange-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px -10px rgba(255,107,44,.75);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--c-primary);
  border:1.5px solid var(--c-primary);
}
.btn-ghost:hover{background:var(--c-primary);color:#fff;}
.btn-ghost-light{
  background:transparent;
  color:#EAF3EF;
  border:1.5px solid rgba(22,224,163,.6);
}
.btn-ghost-light:hover{background:var(--c-accent);color:#0C1F1A;border-color:var(--c-accent);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:12px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--border);
  color:var(--c-primary);
  transition:background var(--ease),border-color var(--ease);
}
.nav-toggle:hover{background:var(--bg-soft);}
.nav-toggle svg{width:22px;height:22px;transition:transform var(--ease2);}
.nav-toggle .icon-close{display:none;}
.site-header.menu-open .nav-toggle .icon-close{display:block;}
.site-header.menu-open .nav-toggle .icon-menu{display:none;}
.site-header.menu-open .nav-toggle svg{transform:rotate(90deg);}
.mobile-panel{
  display:none;
  border-top:1px solid var(--border);
  background:#fff;
  max-height:70vh;
  overflow-y:auto;
}
.mobile-panel a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:48px;
  padding:0 24px;
  font-size:16px;
  color:var(--text);
  border-bottom:1px solid var(--border);
}
.mobile-panel a.active{color:var(--c-primary);font-weight:600;background:var(--bg-soft);}
.mobile-panel a:hover{background:var(--bg-soft);color:var(--c-primary);}
.mobile-panel .panel-cta{padding:16px 24px 24px;border-bottom:0;}
.mobile-panel .panel-cta .btn{width:100%;}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--border);}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  padding:14px 0;
  overflow-x:auto;
  white-space:nowrap;
  scrollbar-width:none;
}
.breadcrumb::-webkit-scrollbar{display:none;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--c-orange);}
.breadcrumb .sep{color:#C4CBC5;}
.breadcrumb .current{color:var(--text);font-weight:600;}

/* ---------- cat hero（居中版式 + 浅底纹理带） ---------- */
.cat-hero{
  position:relative;
  background:
    linear-gradient(180deg,rgba(238,241,236,.94),rgba(245,246,243,.98)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid var(--border);
  padding:64px 0 56px;
  text-align:center;
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(16,53,43,.10) 1px,transparent 1px);
  background-size:20px 20px;
  opacity:.55;
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border-radius:var(--r-badge);
  background:rgba(22,224,163,.14);
  color:#0B5C43;
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
}
.eyebrow .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--c-accent);
  box-shadow:0 0 0 3px rgba(22,224,163,.22);
}
.cat-hero h1{
  font-size:clamp(30px,4vw,44px);
  line-height:1.25;
  font-weight:700;
  color:var(--c-primary);
  margin:20px auto 16px;
  max-width:880px;
  letter-spacing:.01em;
}
.cat-hero .lede{
  max-width:640px;
  margin:0 auto;
  color:var(--text-2);
  font-size:16px;
  line-height:1.85;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:center;
  margin-top:28px;
}
.hero-chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:center;
  margin-top:32px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:34px;
  padding:0 14px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-pill);
  font-size:13px;
  color:var(--text-2);
  box-shadow:var(--sh-sm);
}
.chip b{color:var(--c-primary);font-weight:700;letter-spacing:.02em;}

/* ---------- steps ---------- */
.steps-band{padding:64px 0 24px;}
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  position:relative;
}
.step{
  position:relative;
  padding:0 18px;
  text-align:left;
}
.step::before{
  content:"";
  position:absolute;
  top:17px;
  left:0;
  right:0;
  height:2px;
  background:linear-gradient(90deg,rgba(16,53,43,.16),rgba(22,224,163,.55));
  z-index:0;
}
.step:first-child::before{left:17px;}
.step:last-child::before{right:calc(100% - 17px);}
.step-node{
  position:relative;
  z-index:1;
  width:36px;height:36px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--c-accent);
  color:var(--c-primary);
  font-size:14px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.step h3{
  font-size:17px;
  font-weight:600;
  color:var(--c-primary);
  line-height:1.5;
  margin-bottom:6px;
}
.step p{
  font-size:14px;
  line-height:1.7;
  color:var(--text-2);
}

/* ---------- spec table ---------- */
.spec-wrap{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-sm);
}
.spec-scroll{overflow-x:auto;}
table.spec-table{
  width:100%;
  border-collapse:collapse;
  min-width:720px;
}
.spec-table thead th{
  background:linear-gradient(135deg,#0C1F1A,#10352B);
  color:#EAF3EF;
  font-size:14px;
  font-weight:600;
  letter-spacing:.02em;
  text-align:left;
  padding:18px 20px;
  white-space:nowrap;
}
.spec-table thead th:first-child{
  color:var(--c-accent);
}
.spec-table tbody td{
  padding:16px 20px;
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px solid var(--border);
  vertical-align:middle;
}
.spec-table tbody tr:last-child td{border-bottom:0;}
.spec-table tbody tr:nth-child(even){background:#FAFBF9;}
.spec-table tbody td:first-child{
  color:var(--text);
  font-weight:600;
  font-size:15px;
}
.spec-table tbody tr{transition:background var(--ease2);}
.spec-table tbody tr:hover{background:#F1F6F2;}
.mark{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
}
.mark svg{width:16px;height:16px;flex:0 0 16px;}
.mark.yes{color:var(--ok);}
.mark.no{color:var(--text-3);}
.mark.mid{color:var(--info);}
.spec-note{
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  padding:16px 20px;
  background:var(--bg-soft);
  border-top:1px solid var(--border);
  font-size:13px;
  color:var(--text-2);
}
.spec-note span{display:inline-flex;align-items:center;gap:6px;}
.dot-ind{width:8px;height:8px;border-radius:50%;flex:0 0 8px;}
.dot-ind.g{background:var(--ok);}
.dot-ind.b{background:var(--info);}
.dot-ind.n{background:#B6BEB8;}

/* ---------- points（2 列要点） ---------- */
.points{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.point{
  display:flex;
  gap:16px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--sh-sm);
  transition:transform var(--ease2),box-shadow var(--ease2),border-color var(--ease2);
}
.point:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(22,224,163,.5);}
.point-icon{
  width:44px;height:44px;flex:0 0 44px;
  border-radius:12px;
  background:var(--bg-soft);
  display:flex;align-items:center;justify-content:center;
}
.point-icon svg{width:22px;height:22px;stroke:var(--c-primary);}
.point h3{
  font-size:18px;
  font-weight:600;
  color:var(--c-primary);
  margin-bottom:6px;
  line-height:1.5;
}
.point p{font-size:14px;line-height:1.75;color:var(--text-2);}

/* ---------- media block（图文模块） ---------- */
.media-row{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:40px;
  align-items:center;
  padding:32px 0;
}
.media-row.reverse .media-figure{order:2;}
.media-figure{
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--bg-soft);
  box-shadow:var(--sh-md);
  aspect-ratio:16/10;
}
.media-figure img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease2);}
.media-row:hover .media-figure img{transform:scale(1.03);}
.media-body h2{
  font-size:26px;
  font-weight:700;
  color:var(--c-primary);
  line-height:1.35;
  margin-bottom:14px;
}
.media-body p{color:var(--text-2);font-size:15px;line-height:1.85;margin-bottom:12px;}
.media-body p:last-of-type{margin-bottom:0;}
.mini-list{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.mini-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.7;
}
.mini-list li::before{
  content:"";
  width:6px;height:6px;
  margin-top:9px;
  flex:0 0 6px;
  background:var(--c-accent);
  border-radius:1px;
}

/* ---------- faq ---------- */
.faq-block{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:8px 28px;
  box-shadow:var(--sh-sm);
}
.faq-item{border-bottom:1px solid var(--border);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:14px 0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--c-primary);
  line-height:1.6;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--c-orange);}
.faq-sign{
  position:relative;
  width:22px;height:22px;flex:0 0 22px;
  border-radius:50%;
  background:var(--bg-soft);
  transition:background var(--ease),transform var(--ease2);
}
.faq-sign::before,.faq-sign::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--c-primary);
  transform:translate(-50%,-50%);
  transition:transform var(--ease2),background var(--ease);
}
.faq-sign::before{width:11px;height:2px;}
.faq-sign::after{width:2px;height:11px;}
.faq-item.open .faq-sign{background:var(--c-accent);transform:rotate(180deg);}
.faq-item.open .faq-sign::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height var(--ease2);
}
.faq-a p{
  padding:0 44px 20px 0;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ---------- cta ---------- */
.cta-bar{
  background:linear-gradient(135deg,#0C1F1A 0%,#10352B 100%);
  border-radius:var(--r-lg);
  padding:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  color:#EAF3EF;
}
.cta-bar h2{
  font-size:30px;
  line-height:1.35;
  font-weight:700;
  color:#fff;
  margin-bottom:12px;
}
.cta-bar p{
  font-size:15px;
  line-height:1.8;
  color:#A9B6B0;
  max-width:560px;
}
.cta-actions{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:14px;
  flex:0 0 auto;
}
.cta-actions .link-more{color:#EAF3EF;}
.cta-actions .link-more:hover{color:var(--c-accent);}

/* ---------- footer ---------- */
.site-footer{
  background:#0C1F1A;
  color:#A9B6B0;
  padding:64px 0 0;
  margin-top:80px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:40px;
}
.f-brand .logo{margin-bottom:16px;}
.f-brand .logo-text b{color:#fff;}
.f-brand .logo-text span{color:#7E8C86;}
.f-brand p{
  font-size:14px;
  line-height:1.85;
  color:#A9B6B0;
  max-width:340px;
}
.f-col h3{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.f-col ul{display:flex;flex-direction:column;gap:10px;}
.f-col a{
  font-size:14px;
  color:#A9B6B0;
  transition:color var(--ease);
}
.f-col a:hover{color:var(--c-accent);}
.f-info li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:#A9B6B0;}
.f-info svg{
  width:18px;height:18px;flex:0 0 18px;
  margin-top:4px;
  stroke:#16E0A3;fill:none;
  stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 28px;
  font-size:13px;
  color:#7E8C86;
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-main.nav-left,.nav-main.nav-right{display:none;}
  .nav-toggle{display:inline-flex;}
  .site-header.menu-open .mobile-panel{display:block;}
  .header-inner{justify-content:space-between;}
  .section{padding:56px 0;}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:32px;}
  .step::before{display:none;}
  .step{padding:0;}
  .media-row{grid-template-columns:1fr;gap:24px;}
  .media-row.reverse .media-figure{order:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:40px;}
  .cta-actions{align-items:flex-start;width:100%;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px;}
  .section-head h2{font-size:24px;}
  .cat-hero{padding:44px 0 40px;}
  .cat-hero .lede{font-size:15px;}
  .hero-actions .btn{width:100%;}
  .points{grid-template-columns:1fr;}
  .faq-block{padding:6px 20px;}
  .faq-a p{padding-right:8px;}
  .cta-bar{padding:32px 24px;border-radius:var(--r-md);}
  .cta-bar h2{font-size:24px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}

  /* 表格转卡片堆叠 */
  .spec-scroll{overflow:visible;}
  table.spec-table{min-width:0;display:block;}
  .spec-table thead{display:none;}
  .spec-table tbody,.spec-table tr,.spec-table td{display:block;width:100%;}
  .spec-table tbody tr{
    background:#fff;
    border:1px solid var(--border);
    border-radius:var(--r-md);
    padding:14px 16px;
    margin:0 0 14px;
    box-shadow:var(--sh-sm);
  }
  .spec-table tbody tr:nth-child(even){background:#fff;}
  .spec-table tbody td{
    border-bottom:0;
    padding:8px 0;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    font-size:14px;
  }
  .spec-table tbody td::before{
    content:attr(data-label);
    font-size:13px;
    font-weight:600;
    color:var(--text-3);
    flex:0 0 auto;
  }
  .spec-table tbody td:first-child{
    display:block;
    font-size:17px;
    padding:0 0 12px;
    margin-bottom:6px;
    border-bottom:1px dashed var(--border);
  }
  .spec-table tbody td:first-child::before{display:none;}
  .spec-note{border-radius:0 0 var(--r-md) var(--r-md);}
}
@media (max-width:479px){
  .cat-hero h1{font-size:27px;}
  .steps{grid-template-columns:1fr;}
  .logo-text b{font-size:16px;}
  .logo-text span{font-size:10px;}
}