/* roulang page: index */
:root{
  --brand:#2E3A8C;
  --brand-deep:#232E77;
  --brand-soft:#EEF0FB;
  --cyan:#3AA79E;
  --orange:#E8873A;
  --bg:#F5F7FC;
  --card:#FFFFFF;
  --surface:#EEF1FA;
  --line:#E4E9F2;
  --t1:#131A2E;
  --t2:#3B4763;
  --t3:#6B7893;
  --footer:#151C33;
  --r-card:14px;
  --r-btn:10px;
  --r-lg:16px;
  --shadow:0 1px 2px rgba(19,26,46,.06),0 12px 28px -12px rgba(19,26,46,.16);
  --shadow-hover:0 2px 4px rgba(19,26,46,.08),0 20px 34px -14px rgba(19,26,46,.24);
  --sidebar-w:248px;
  --s4:4px;--s8:8px;--s12:12px;--s16:16px;--s24:24px;--s32:32px;--s48:48px;--s64:64px;--s88:88px;
}
*,*::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",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;color:var(--t1);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
a:hover{color:var(--brand-deep)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1{font-size:clamp(30px,4vw,44px);font-weight:700;line-height:1.35;letter-spacing:.2px}
h2{font-size:clamp(24px,2.6vw,32px);font-weight:600;line-height:1.4;letter-spacing:.2px}
h3{font-size:20px;font-weight:600;line-height:1.5}
p{color:var(--t2)}
:focus-visible{outline:none;box-shadow:0 0 0 2px #fff,0 0 0 4px rgba(46,58,140,.55);border-radius:6px}

/* ---------- 布局壳层 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);z-index:70;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:0 var(--s16) var(--s16);
}
.brand{display:flex;align-items:center;gap:10px;height:72px;text-decoration:none;color:var(--t1);flex:0 0 auto}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--brand-soft);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.brand-mark svg{width:19px;height:19px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:.4px}
.brand-text em{font-style:normal;font-size:12px;color:var(--t3);margin-top:2px}
.side-nav{display:flex;flex-direction:column;gap:var(--s4);margin-top:var(--s8)}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;height:40px;padding:0 12px;
  border-radius:8px;color:var(--t2);font-size:15px;text-decoration:none;transition:background .18s,color .18s,box-shadow .18s;
}
.nav-item svg{width:17px;height:17px;flex:0 0 auto;color:var(--t3);transition:color .18s}
.nav-item:hover{background:var(--surface);color:var(--t1)}
.nav-item:hover svg{color:var(--brand)}
.nav-item.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;box-shadow:inset 3px 0 0 0 var(--brand)}
.nav-item.is-active svg{color:var(--brand)}
.side-foot{margin-top:auto;background:var(--surface);border-radius:12px;padding:var(--s16);text-decoration:none;display:block;transition:background .18s}
.side-foot:hover{background:#E5EAF7}
.side-foot-title{font-size:14px;font-weight:600;color:var(--t1)}
.side-foot-desc{font-size:12.5px;color:var(--t3);line-height:1.6;margin-top:4px}
.side-foot-link{display:inline-flex;align-items:center;gap:4px;font-size:13px;color:var(--brand);margin-top:10px;text-decoration:none}
.side-foot-link:hover{text-decoration:underline}

.shell-main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--s32)}
.section{padding:var(--s88) 0}
.section.tight{padding:var(--s64) 0}

/* ---------- 移动端顶栏与抽屉 ---------- */
.topbar{display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:80;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);align-items:center;gap:var(--s12);padding:0 var(--s16);backdrop-filter:saturate(160%) blur(8px)}
.burger{width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;flex:0 0 auto}
.burger svg{width:18px;height:18px;color:var(--t2)}
.topbar-brand{font-weight:700;font-size:16px;color:var(--t1);text-decoration:none;flex:1;letter-spacing:.3px}
.drawer-mask{position:fixed;inset:0;background:rgba(19,26,46,.45);opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s;z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;left:0;bottom:0;width:280px;background:#fff;z-index:91;transform:translateX(-100%);transition:transform .28s ease;padding:var(--s16);display:flex;flex-direction:column;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  min-height:44px;padding:0 var(--s24);border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;text-decoration:none;cursor:pointer;
  transition:background .18s,color .18s,transform .18s,box-shadow .18s,border-color .18s;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 20px -10px rgba(35,46,119,.6)}
.btn-outline{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-deep)}
.btn-ghost{background:transparent;color:var(--brand);padding:0 var(--s8);min-height:44px}
.btn-ghost:hover{color:var(--brand-deep);text-decoration:underline}
.btn-buy{background:var(--orange);color:#fff;padding:0 var(--s16);min-height:40px;font-size:14px}
.btn-buy:hover{background:#d2762c;color:#fff;transform:translateY(-1px)}
.btn-sm{min-height:36px;font-size:14px;padding:0 var(--s16)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none}
.btn:active{transform:translateY(0)}

/* ---------- 标签 / 徽章 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12.5px;font-weight:600;background:var(--brand-soft);color:var(--brand);letter-spacing:.2px}
.badge-warm{background:#FDF0E4;color:#B4611F}
.badge-cyan{background:#E4F4F2;color:#227A73}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:#fff;border-bottom:1px solid var(--line)}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(245,247,252,.9),rgba(245,247,252,.96)),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:radial-gradient(circle,rgba(46,58,140,.9) 1px,transparent 1px);
  background-size:46px 46px;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:var(--s48);align-items:center;padding:var(--s88) 0}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;box-shadow:var(--shadow)}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--cyan);display:block}
.hero h1{margin-top:var(--s24);color:var(--t1)}
.hero h1 span{color:var(--brand)}
.hero-sub{margin-top:var(--s16);font-size:17px;color:var(--t2);max-width:560px}
.hero-note{margin-top:var(--s12);font-size:14px;color:var(--t3)}
.hero-actions{display:flex;align-items:center;gap:var(--s16);margin-top:var(--s24);flex-wrap:wrap}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px;margin-top:var(--s24);font-size:13px;color:var(--t3)}
.hero-trust span{display:inline-flex;align-items:center;gap:10px}
.hero-trust span+span::before{content:"";width:1px;height:12px;background:var(--line);display:inline-block}
.hero-visual{position:relative}
.hero-shot{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);overflow:hidden}
.hero-shot-top{display:flex;align-items:center;gap:6px;padding:10px 14px;border-bottom:1px solid var(--line);background:var(--surface)}
.hero-shot-top i{width:8px;height:8px;border-radius:50%;background:#CBD4E6;display:block}
.hero-shot-top span{margin-left:auto;font-size:12px;color:var(--t3);letter-spacing:.2px}
.hero-shot img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-float{
  position:absolute;right:-14px;bottom:-22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow);padding:12px 16px;display:flex;align-items:center;gap:10px;
}
.hero-float b{font-size:20px;color:var(--brand);font-weight:700}
.hero-float small{font-size:12.5px;color:var(--t3);display:block;line-height:1.4}

/* ---------- 板块标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--s24);margin-bottom:var(--s32);flex-wrap:wrap}
.sec-head h2{color:var(--t1)}
.sec-head p{margin-top:8px;font-size:15px;color:var(--t3);max-width:640px}
.sec-link{font-size:14px;font-weight:600;color:var(--brand);text-decoration:none;white-space:nowrap}
.sec-link:hover{text-decoration:underline}

/* ---------- 爆款网格 ---------- */
.boom-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s24)}
.boom-card{
  position:relative;display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow);
  overflow:hidden;transition:transform .2s,box-shadow .2s;
}
.boom-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.boom-card.is-feature{grid-column:span 2;grid-row:span 2}
.boom-media{position:relative;overflow:hidden;background:var(--surface)}
.boom-media img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s}
.boom-card.is-feature .boom-media img{aspect-ratio:16/9}
.boom-card:hover .boom-media img{transform:scale(1.03)}
.boom-media .badge{position:absolute;top:12px;left:12px;box-shadow:0 4px 10px rgba(19,26,46,.12)}
.boom-body{padding:var(--s16) 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.boom-body h3{font-size:18px;color:var(--t1)}
.boom-card.is-feature .boom-body h3{font-size:23px}
.boom-body p{font-size:14px;color:var(--t3);line-height:1.7}
.boom-card.is-feature .boom-body p{font-size:15px;color:var(--t2)}
.boom-foot{display:flex;align-items:center;justify-content:space-between;gap:var(--s12);margin-top:auto;padding-top:var(--s12);border-top:1px dashed var(--line)}
.price{font-size:19px;font-weight:700;color:var(--orange);letter-spacing:.2px}
.price em{font-style:normal;font-size:12.5px;color:var(--t3);font-weight:400;margin-left:2px}

/* ---------- 评价轮播 ---------- */
.review-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.review-track{
  display:flex;gap:var(--s16);overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:var(--s8);scrollbar-width:none;-ms-overflow-style:none;
}
.review-track::-webkit-scrollbar{display:none}
.review-card{
  flex:0 0 320px;scroll-snap-align:start;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:var(--s12);
}
.review-top{display:flex;align-items:center;gap:var(--s12)}
.avatar{width:42px;height:42px;border-radius:50%;background:var(--brand-soft);color:var(--brand);font-weight:700;display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.review-name{font-size:15px;font-weight:600;color:var(--t1);line-height:1.3}
.review-role{font-size:12.5px;color:var(--t3)}
.review-text{font-size:14.5px;color:var(--t2);line-height:1.8}
.stars{display:flex;gap:3px;color:var(--orange)}
.stars svg{width:14px;height:14px}
.review-nav{display:flex;align-items:center;gap:var(--s16);margin-top:var(--s24)}
.arrow-btn{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--brand);transition:background .18s,border-color .18s}
.arrow-btn:hover{background:var(--brand-soft);border-color:var(--brand)}
.arrow-btn svg{width:16px;height:16px}
.dots{display:flex;gap:8px;margin-left:auto}
.dot{width:8px;height:8px;border-radius:50%;background:#CFD8E8;border:0;padding:0;cursor:pointer;transition:background .2s,width .2s}
.dot.is-active{background:var(--brand);width:22px;border-radius:999px}

/* ---------- 保障条 ---------- */
.guarantee{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.guarantee-list{display:grid;grid-template-columns:repeat(4,1fr)}
.g-item{display:flex;align-items:center;gap:var(--s12);padding:var(--s24) var(--s16)}
.g-item+.g-item{border-left:1px solid #DCE3F0}
.g-ico{width:38px;height:38px;border-radius:10px;background:#fff;display:flex;align-items:center;justify-content:center;flex:0 0 auto;border:1px solid var(--line)}
.g-ico svg{width:18px;height:18px;color:var(--cyan)}
.g-item strong{display:block;font-size:15px;font-weight:600;color:var(--t1)}
.g-item span{font-size:12.5px;color:var(--t3);line-height:1.5}

/* ---------- 加购 CTA ---------- */
.buy-card{
  background:#fff;border:1.5px solid var(--brand);border-radius:var(--r-lg);
  box-shadow:var(--shadow);padding:var(--s32);display:flex;align-items:center;gap:var(--s32);flex-wrap:wrap;
}
.buy-left{flex:1;min-width:260px}
.buy-left h3{font-size:22px;color:var(--t1)}
.buy-meta{display:flex;flex-wrap:wrap;gap:var(--s24);margin-top:var(--s16)}
.buy-meta div{font-size:13px;color:var(--t3)}
.buy-meta b{display:block;font-size:17px;color:var(--t1);font-weight:700;margin-top:2px}
.buy-meta b.hl{color:var(--orange)}
.buy-actions{display:flex;gap:var(--s12);flex-wrap:wrap}
.buy-note{width:100%;font-size:13px;color:var(--t3);border-top:1px dashed var(--line);padding-top:var(--s16)}

/* ---------- 最新信息 ---------- */
.news-section{background:#fff;border-top:1px solid var(--line)}
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s24)}
.news-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .2s,box-shadow .2s;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.news-card.is-feature{grid-column:span 2;grid-row:span 2}
.news-cover{display:block;background:var(--surface);overflow:hidden}
.news-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s}
.news-card.is-feature .news-cover img{aspect-ratio:16/9}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:16.5px;line-height:1.55;color:var(--t1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card.is-feature .news-body h3{font-size:22px}
.news-body p{font-size:14px;color:var(--t3);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:var(--s12);border-top:1px dashed var(--line);font-size:12.5px;color:var(--t3)}
.news-meta a{font-weight:600;text-decoration:none;margin-left:auto}
.news-meta a:hover{text-decoration:underline}
.news-empty{
  grid-column:1/-1;background:var(--card);border:1px dashed #CFD8E8;border-radius:var(--r-card);
  padding:var(--s48) var(--s24);text-align:center;display:flex;flex-direction:column;align-items:center;gap:var(--s16);
}
.news-empty svg{width:64px;height:64px;color:#C6D0E4}
.news-empty p{font-size:15px;color:var(--t3)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:var(--s12);max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:box-shadow .2s,border-color .2s}
.faq-item[open]{border-color:#CBD5EA;box-shadow:var(--shadow),inset 3px 0 0 0 var(--brand)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:var(--s16);
  min-height:52px;padding:0 20px;font-size:16px;font-weight:600;color:var(--t1);
  cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q::after{content:"";width:9px;height:9px;flex:0 0 auto;border-right:2px solid var(--t3);border-bottom:2px solid var(--t3);transform:rotate(45deg);transition:transform .25s;margin-top:-4px}
.faq-item[open] .faq-q::after{transform:rotate(-135deg);border-color:var(--brand)}
.faq-a{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--t3)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:#C3CBE0;margin-top:auto;position:relative;overflow:hidden}
.site-footer::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:radial-gradient(circle,#fff 1px,transparent 1px);background-size:52px 52px;
}
.footer-inner{position:relative;z-index:2;padding:var(--s64) 0 var(--s32)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:var(--s32)}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none}
.footer-brand .brand-mark{background:rgba(255,255,255,.1)}
.footer-brand strong{font-size:17px;font-weight:700;letter-spacing:.4px}
.footer-about{font-size:13.5px;line-height:1.8;color:#98A3BE;margin-top:var(--s16);max-width:320px}
.footer-col h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:var(--s16);letter-spacing:.3px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:#AEB8D2;font-size:13.5px;text-decoration:none}
.footer-col a:hover{color:var(--cyan)}
.footer-col li span{font-size:13.5px;color:#98A3BE}
.footer-bottom{position:relative;z-index:2;border-top:1px solid rgba(255,255,255,.1);padding:var(--s24) 0;font-size:13px;color:#8C97B4;display:flex;justify-content:space-between;gap:var(--s16);flex-wrap:wrap}

/* ---------- 表单（通用） ---------- */
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:var(--s16)}
.field label{font-size:14px;font-weight:600;color:var(--t1)}
.field input,.field textarea{
  width:100%;min-height:44px;padding:10px 14px;border-radius:var(--r-btn);
  border:1px solid #D8E0EE;background:#fff;font-size:14.5px;transition:border-color .18s,box-shadow .18s;
}
.field textarea{min-height:120px;resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,58,140,.14)}

/* ---------- 状态 ---------- */
.skeleton{background:linear-gradient(90deg,#EDF1F8 25%,#E3E9F4 37%,#EDF1F8 63%);background-size:400% 100%;animation:sk 1.4s ease infinite;border-radius:8px}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ---------- 响应式 ---------- */
@media (max-width:1279px) and (min-width:1024px){
  :root{--sidebar-w:76px}
  .brand{justify-content:center}
  .brand-text,.side-foot{display:none}
  .nav-item{justify-content:center;padding:0}
  .nav-txt{
    position:absolute;left:58px;top:50%;transform:translateY(-50%);
    background:var(--t1);color:#fff;padding:6px 10px;border-radius:8px;font-size:13px;
    white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .18s;z-index:5;
  }
  .nav-item:hover .nav-txt{opacity:1}
  .nav-item.is-active{box-shadow:inset 0 0 0 0 transparent}
  .container{padding:0 var(--s24)}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .shell-main{margin-left:0;padding-top:56px}
  .topbar{display:flex}
  .drawer .nav-item{height:46px}
  .hero-inner{grid-template-columns:1fr;gap:var(--s32);padding:var(--s48) 0}
  .hero-float{position:static;margin-top:var(--s16);right:auto;bottom:auto;display:inline-flex}
  .boom-grid{grid-template-columns:repeat(2,1fr)}
  .boom-card.is-feature{grid-column:span 2;grid-row:auto}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .news-card.is-feature{grid-column:span 2;grid-row:auto}
  .guarantee-list{grid-template-columns:repeat(2,1fr)}
  .g-item:nth-child(3){border-left:0}
  .g-item:nth-child(n+3){border-top:1px solid #DCE3F0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--s24)}
}
@media (max-width:768px){
  :root{--s88:56px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section.tight{padding:44px 0}
  .hero-sub{font-size:16px}
  .boom-grid{grid-template-columns:1fr;gap:var(--s16)}
  .boom-card{flex-direction:row;align-items:stretch}
  .boom-card.is-feature{grid-column:auto}
  .boom-media{flex:0 0 116px;width:116px}
  .boom-media img,.boom-card.is-feature .boom-media img{aspect-ratio:1/1;height:100%}
  .boom-media .badge{top:8px;left:8px;font-size:11px;height:20px;padding:0 8px}
  .boom-body{padding:14px 16px}
  .boom-body h3,.boom-card.is-feature .boom-body h3{font-size:16.5px}
  .boom-body>p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .boom-foot{padding-top:10px}
  .price{font-size:17px}
  .buy-card{padding:var(--s24)}
  .buy-actions{width:100%}
  .buy-actions .btn{flex:1}
  .news-grid{grid-template-columns:1fr}
  .news-card.is-feature{grid-column:auto}
  .review-card{flex:0 0 82%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%}
  .hero-trust{flex-direction:column;gap:6px}
  .hero-trust span+span::before{display:none}
  .guarantee-list{grid-template-columns:1fr}
  .g-item+.g-item{border-left:0;border-top:1px solid #DCE3F0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
}

/* roulang page: article */
:root{
  --brand:#2E3A8C;
  --brand-dark:#232E77;
  --brand-soft:#EEF0FB;
  --accent:#3AA79E;
  --accent-soft:#E6F3F2;
  --spark:#E8873A;
  --spark-soft:#FDEDE0;
  --bg:#F5F7FC;
  --card:#FFFFFF;
  --panel:#EEF1FA;
  --line:#E4E9F2;
  --line-strong:#D8E0EE;
  --ink:#131A2E;
  --ink-2:#3B4763;
  --ink-3:#6B7893;
  --footer-bg:#151C33;
  --r-card:14px;
  --r-btn:10px;
  --r-img:16px;
  --r-pill:999px;
  --sh-card:0 1px 2px rgba(19,26,46,.06), 0 12px 28px -12px rgba(19,26,46,.16);
  --sh-hover:0 2px 6px rgba(19,26,46,.08), 0 22px 40px -16px rgba(19,26,46,.22);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
  --sidebar-w:248px;
}
*,*::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",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;}
a:hover{text-decoration:underline;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 侧栏 ============ */
.sidebar{
  position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;
  background:#fff;border-right:1px solid var(--line);z-index:60;
  display:flex;flex-direction:column;
}
.sidebar-head{
  height:72px;display:flex;align-items:center;gap:10px;padding:0 20px;
  border-bottom:1px solid var(--line);flex:0 0 auto;
}
.brand-mark{
  width:30px;height:30px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),#4A57B8);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 10px -4px rgba(46,58,140,.7);
}
.brand-mark svg{width:17px;height:17px;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:.2px;color:var(--ink);}
.brand-text span{font-size:11px;color:var(--ink-3);letter-spacing:.2px;}
.side-nav{padding:16px 12px;display:flex;flex-direction:column;gap:4px;flex:1 1 auto;overflow-y:auto;}
.nav-item{
  display:flex;align-items:center;gap:10px;height:40px;padding:0 12px;border-radius:8px;
  color:var(--ink-2);font-size:15px;position:relative;
  transition:background .18s ease,color .18s ease;
}
.nav-item svg{width:18px;height:18px;flex:0 0 auto;color:var(--ink-3);transition:color .18s ease;}
.nav-item:hover{background:var(--panel);color:var(--brand);text-decoration:none;}
.nav-item:hover svg{color:var(--brand);}
.nav-item.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.nav-item.is-active svg{color:var(--brand);}
.nav-item.is-active::before{
  content:"";position:absolute;left:-12px;top:8px;bottom:8px;width:3px;
  background:var(--brand);border-radius:0 3px 3px 0;
}
.side-card{
  margin:12px;padding:16px;border-radius:12px;background:var(--panel);
  flex:0 0 auto;
}
.side-card h4{font-size:13px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.side-card p{font-size:12px;line-height:1.7;color:var(--ink-3);margin-bottom:10px;}
.side-card a{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--brand);
}
.side-card a svg{width:14px;height:14px;}

/* ============ 主区域 ============ */
.app-main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}
.mobile-bar{display:none;}
.drawer,.drawer-mask{display:none;}

.page{padding:32px 0 0;flex:1 1 auto;}

/* 面包屑 */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--ink-3);margin-bottom:24px;
}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#B9C2D6;}
.breadcrumb .cur{
  color:var(--ink-2);max-width:340px;white-space:nowrap;overflow:hidden;
  text-overflow:ellipsis;display:inline-block;vertical-align:bottom;
}

/* ============ 文章头部 ============ */
.article-head{max-width:760px;}
.article-head .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:500;background:var(--brand-soft);color:var(--brand);
}
.tag.is-accent{background:var(--accent-soft);color:#2B7E77;}
.tag.is-spark{background:var(--spark-soft);color:#B9641F;}
.article-head h1{
  font-size:clamp(30px,4vw,44px);font-weight:700;line-height:1.35;letter-spacing:.3px;
  color:var(--ink);margin-bottom:20px;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:14px;color:var(--ink-3);
}
.meta-row .dot{color:#C6CEE0;}
.meta-row strong{font-weight:500;color:var(--ink-2);}
.head-rule{height:1px;background:var(--line);margin:28px 0 40px;}

/* ============ 文章布局 ============ */
.article-layout{display:block;}
.article-body{
  max-width:760px;font-size:17px;line-height:1.9;color:var(--ink-2);
}
.article-body p{margin:0 0 1em;}
.article-body h2{
  font-size:clamp(24px,2.6vw,32px);font-weight:600;color:var(--ink);line-height:1.45;
  margin:32px 0 16px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  background:var(--brand);border-radius:2px;
}
.article-body h3{
  font-size:20px;font-weight:600;color:var(--ink);margin:28px 0 12px;
}
.article-body h2 + h3{margin-top:12px;}
.article-body ul{margin:0 0 1.2em;padding:0;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:12px;width:8px;height:8px;
  background:var(--accent);border-radius:2px;transform:rotate(45deg);
}
.article-body ol{margin:0 0 1.2em;counter-reset:ol;padding:0;}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:ol;}
.article-body ol li::before{
  content:counter(ol);position:absolute;left:0;top:4px;width:20px;height:20px;
  border-radius:6px;background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:600;display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:#F4F7FD;border-left:3px solid var(--brand);
  border-radius:0 10px 10px 0;color:var(--ink-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:24px auto;width:100%;object-fit:cover;}
.article-body figure{margin:24px 0;}
.article-body figcaption{
  font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;
}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-dark);}
.article-body strong{color:var(--ink);font-weight:600;}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body th,.article-body td{
  padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);
}
.article-body th{background:var(--panel);font-weight:600;color:var(--ink);}
.article-body tr:last-child td{border-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

/* 空态 */
.empty-state{
  max-width:760px;padding:56px 24px;text-align:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
}
.empty-state svg{width:52px;height:52px;color:#B9C2D6;margin:0 auto 16px;}
.empty-state h2{font-size:20px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.empty-state p{font-size:14px;color:var(--ink-3);margin-bottom:20px;}

/* 目录 */
.toc{display:none;}
.toc-head{
  font-size:13px;font-weight:600;color:var(--ink-3);letter-spacing:.4px;
  text-transform:uppercase;margin-bottom:12px;
}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;padding:7px 12px;border-left:2px solid var(--line);
  font-size:14px;line-height:1.6;color:var(--ink-3);
  transition:color .16s ease,border-color .16s ease,background .16s ease;
}
.toc-list a:hover{color:var(--brand);background:var(--panel);text-decoration:none;}
.toc-list a.is-current{
  color:var(--brand);border-left-color:var(--brand);background:var(--brand-soft);font-weight:600;
}
.toc-list .lvl-3 a{padding-left:24px;font-size:13px;}

/* ============ 相关推荐 ============ */
.rel-section{padding:64px 0 0;}
.section-head{margin-bottom:28px;}
.section-head h2{font-size:clamp(20px,2vw,24px);font-weight:600;color:var(--ink);letter-spacing:.3px;}
.section-head p{font-size:14px;color:var(--ink-3);margin-top:6px;}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);text-decoration:none;}
.rel-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--panel);}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto;}
.rel-body h3{
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-body p{
  font-size:14px;color:var(--ink-3);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-meta{font-size:13px;color:var(--ink-3);margin-top:auto;padding-top:6px;}
.back-row{margin-top:28px;}

/* ============ CTA 条 ============ */
.cta-band{
  margin:64px 0 0;
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);
  border-radius:var(--r-card);box-shadow:var(--sh-card);
  padding:32px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;
}
.cta-band .cta-copy{flex:1 1 320px;}
.cta-band h2{font-size:20px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.cta-band p{font-size:14px;color:var(--ink-3);}
.cta-price{display:flex;align-items:baseline;gap:8px;margin-top:14px;}
.cta-price .num{font-size:28px;font-weight:700;color:var(--spark);font-family:Inter,system-ui,sans-serif;}
.cta-price .unit{font-size:14px;color:var(--ink-3);}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.2px;white-space:nowrap;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px -10px rgba(46,58,140,.8);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;}
.btn-spark{background:var(--spark);color:#fff;box-shadow:0 8px 18px -10px rgba(232,135,58,.9);}
.btn-spark:hover{background:#D2762C;color:#fff;}
.btn-outline{border:1px solid var(--line-strong);color:var(--brand);background:transparent;}
.btn-outline:hover{background:var(--brand-soft);border-color:var(--brand);}
.btn-ghost{color:var(--brand);padding:0 12px;height:46px;}
.btn-ghost:hover{background:var(--brand-soft);}
.btn-ghost svg{width:16px;height:16px;}
.btn:disabled,.btn[disabled]{opacity:.45;transform:none;cursor:not-allowed;}
.cta-note{width:100%;font-size:13px;color:var(--ink-3);border-top:1px dashed var(--line);padding-top:14px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer-bg);color:#A9B4CE;margin-top:96px;position:relative;overflow:hidden;}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.13) 1px,transparent 1px);
  background-size:64px 64px;
}
.footer-inner{position:relative;padding:64px 0 40px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand strong{color:#fff;font-size:16px;font-weight:700;letter-spacing:.2px;}
.footer-brand:hover{text-decoration:none;}
.footer-about{font-size:13px;line-height:1.8;color:#8E9AB8;max-width:300px;}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;font-size:13px;line-height:1.7;}
.footer-col a{color:#A9B4CE;}
.footer-col a:hover{color:var(--accent);text-decoration:none;}
.footer-col span{color:#8E9AB8;}
.footer-bottom{
  position:relative;border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;
  flex-wrap:wrap;font-size:13px;color:#7E8AAB;
}

/* 骨架 */
.skeleton{background:linear-gradient(90deg,#EDF0F7 25%,#F5F7FC 37%,#EDF0F7 63%);
  background-size:400% 100%;animation:sk 1.4s ease infinite;border-radius:8px;}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ============ 响应式 ============ */
@media (min-width:1280px){
  .article-layout{display:grid;grid-template-columns:minmax(0,760px) 260px;gap:48px;align-items:start;}
  .toc{display:block;position:sticky;top:32px;}
}
@media (max-width:1279px){
  :root{--sidebar-w:76px;}
  .sidebar-head{justify-content:center;padding:0;}
  .sidebar-head .brand-text{display:none;}
  .nav-item{justify-content:center;padding:0;}
  .nav-item .nav-txt{display:none;}
  .nav-item:hover .nav-txt{
    display:block;position:absolute;left:60px;top:50%;transform:translateY(-50%);
    background:var(--ink);color:#fff;font-size:13px;padding:5px 12px;border-radius:8px;
    white-space:nowrap;z-index:80;font-weight:500;
  }
  .side-card{display:none;}
  .rel-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  :root{--sidebar-w:0px;}
  .sidebar{display:none;}
  .app-main{margin-left:0;}
  .mobile-bar{
    display:flex;align-items:center;justify-content:space-between;
    height:56px;padding:0 20px;background:#fff;border-bottom:1px solid var(--line);
    position:sticky;top:0;z-index:70;
  }
  .mobile-bar .mb-left{display:flex;align-items:center;gap:12px;}
  .burger{
    width:40px;height:40px;display:flex;align-items:center;justify-content:center;
    border-radius:10px;color:var(--ink-2);
  }
  .burger:hover{background:var(--panel);}
  .burger svg{width:20px;height:20px;}
  .mb-brand{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--ink);}
  .mb-brand .brand-mark{width:26px;height:26px;border-radius:8px;}
  .mb-brand .brand-mark svg{width:14px;height:14px;}
  .mb-cta{
    display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:9px;
    background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  }
  .mb-cta:hover{background:var(--brand-dark);color:#fff;text-decoration:none;}
  .drawer-mask{
    display:block;position:fixed;inset:0;background:rgba(19,26,46,.45);
    opacity:0;pointer-events:none;transition:opacity .22s ease;z-index:90;
  }
  .drawer-mask.is-open{opacity:1;pointer-events:auto;}
  .drawer{
    display:block;position:fixed;top:0;left:0;width:280px;height:100vh;background:#fff;
    z-index:100;transform:translateX(-100%);transition:transform .26s ease;
    padding:16px 12px;overflow-y:auto;
  }
  .drawer.is-open{transform:translateX(0);}
  .drawer-head{
    display:flex;align-items:center;justify-content:space-between;
    padding:0 8px 16px;border-bottom:1px solid var(--line);margin-bottom:12px;
  }
  .drawer-close{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:9px;color:var(--ink-3);}
  .drawer-close:hover{background:var(--panel);}
  .drawer-close svg{width:18px;height:18px;}
  .drawer .nav-item{justify-content:flex-start;padding:0 12px;height:46px;}
  .drawer .nav-item .nav-txt{display:block;font-size:15px;}
  .page{padding-top:24px;}
  .container{padding:0 20px;}
  .article-head h1{font-size:30px;}
  .site-footer{margin-top:72px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .article-body{font-size:16px;line-height:1.85;max-width:100%;}
  .rel-grid{grid-template-columns:1fr;}
  .cta-band{padding:24px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .breadcrumb .cur{max-width:180px;}
}
@media (max-width:520px){
  .article-head h1{font-size:26px;}
  .meta-row{font-size:13px;gap:8px;}
  .btn{height:44px;padding:0 18px;font-size:14px;}
  .btn-ghost{padding:0 6px;}
}

/* roulang page: category1 */
:root{
  --brand:#2E3A8C;
  --brand-deep:#232E77;
  --brand-tint:#EEF0FB;
  --accent:#3AA79E;
  --accent-tint:#E6F4F2;
  --spark:#E8873A;
  --bg:#F5F7FC;
  --card:#FFFFFF;
  --soft:#EEF1FA;
  --line:#E4E9F2;
  --text:#131A2E;
  --text-2:#3B4763;
  --text-3:#6B7893;
  --footer:#151C33;
  --r-card:14px;
  --r-btn:10px;
  --r-img:16px;
  --r-pill:999px;
  --sh-card:0 1px 2px rgba(19,26,46,.06), 0 12px 28px -12px rgba(19,26,46,.16);
  --sh-hover:0 2px 4px rgba(19,26,46,.08), 0 18px 36px -14px rgba(19,26,46,.22);
  --sidebar-w:248px;
}
*,*::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",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.2px;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
button{font:inherit;cursor:pointer;color:inherit}
ol,ul{margin:0;padding:0}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:.3px}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-family:"Inter","PingFang SC",system-ui,sans-serif;font-variant-numeric:tabular-nums}

.skip-link{position:absolute;left:-9999px;top:0;background:#fff;padding:10px 16px;border-radius:8px;z-index:200}
.skip-link:focus{left:16px;top:12px}

/* ---------- 侧边导航 ---------- */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:0 16px 20px;
  z-index:60;
}
.brand{display:flex;align-items:center;gap:10px;height:72px;padding:0 8px;color:var(--text);text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#2E3A8C,#3AA79E);display:grid;place-items:center;flex:none}
.brand-mark svg{width:18px;height:18px}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:16px;font-weight:700}
.brand-sub{font-size:12px;color:var(--text-3);letter-spacing:.4px}
.side-nav{display:flex;flex-direction:column;gap:4px;margin-top:8px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:8px;
  color:var(--text-2);font-size:15px;font-weight:500;
  transition:background .18s ease,color .18s ease;
  text-decoration:none;
}
.nav-item svg{width:20px;height:20px;flex:none}
.nav-item:hover{background:var(--soft);color:var(--text);text-decoration:none}
.nav-item.is-active{background:var(--brand-tint);color:var(--brand);font-weight:600}
.nav-item.is-active::before{content:"";position:absolute;left:-16px;top:50%;transform:translateY(-50%);width:3px;height:22px;border-radius:0 3px 3px 0;background:var(--brand)}
.side-card{margin-top:auto;background:var(--soft);border-radius:12px;padding:16px;font-size:13px;line-height:1.7;color:var(--text-2)}
.side-card strong{display:block;font-size:14px;color:var(--text);margin-bottom:4px}
.side-card a{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:13px;font-weight:600}

/* ---------- 顶部栏（移动端） ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:50;height:56px;align-items:center;gap:12px;
  padding:0 16px;background:rgba(255,255,255,.95);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.hamburger{width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--line);background:#fff;border-radius:10px;color:var(--text);transition:background .18s ease}
.hamburger:hover{background:var(--soft)}
.topbar-brand{font-weight:700;font-size:15px;color:var(--text);text-decoration:none;letter-spacing:.3px}
.topbar-cta{margin-left:auto;display:inline-flex;align-items:center;height:40px;padding:0 16px;border-radius:var(--r-pill);background:var(--brand);color:#fff;font-size:13px;font-weight:600;text-decoration:none}
.topbar-cta:hover{background:var(--brand-deep);text-decoration:none}
.drawer-mask{display:none;position:fixed;inset:0;background:rgba(19,26,46,.45);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:55}
.drawer-mask.is-show{opacity:1;visibility:visible}

/* ---------- 布局 ---------- */
.content{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
main{flex:1 1 auto}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--text-3);padding-top:32px}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#C6CFE0}
.crumb .now{color:var(--text-2);font-weight:500}

/* ---------- 首屏 ---------- */
.page-hero{padding:24px 0 56px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--accent);letter-spacing:.6px}
.page-hero h1{font-size:clamp(30px,4vw,44px);font-weight:700;line-height:1.35;margin-top:14px}
.lead{font-size:17px;color:var(--text-2);line-height:1.85;max-width:760px;margin:18px 0 0}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);background:var(--brand-tint);color:var(--brand);font-size:13px;font-weight:500}
.tag--teal{background:var(--accent-tint);color:#2A7C74}
.tag--spark{background:#FDF0E3;color:#C0661B}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:26px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  text-decoration:none;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);box-shadow:0 10px 22px -10px rgba(46,58,140,.75)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-tint)}
.btn-spark{background:var(--spark);color:#fff}
.btn-spark:hover{background:#D4762B}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;padding-bottom:2px;border-bottom:1px solid rgba(46,58,140,.35);text-decoration:none}
.btn-link:hover{border-bottom-color:var(--brand);text-decoration:none}

/* ---------- 板块 ---------- */
.section{padding:72px 0}
.section-tight{padding:56px 0}
.section-soft{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:32px}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:600;line-height:1.4}
.sec-head p{margin:12px 0 0;color:var(--text-2);font-size:16px}

/* ---------- 全宽功能长图 ---------- */
.band{
  position:relative;padding:72px 0;
  background-image:linear-gradient(180deg,rgba(245,247,252,.88),rgba(245,247,252,.94)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.band h2{font-size:clamp(22px,2.4vw,30px);font-weight:600;max-width:680px;line-height:1.45}
.band p{margin:14px 0 0;max-width:640px;color:var(--text-2)}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px}
.stat{background:rgba(255,255,255,.88);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-card)}
.stat b{display:block;font-size:30px;font-weight:700;color:var(--brand);line-height:1.2}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--text-2)}

/* ---------- Zigzag ---------- */
.zz{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:36px 0}
.zz + .zz{border-top:1px solid var(--line)}
.zz--reverse .zz-media{order:2}
.zz-media{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-card);background:var(--soft);transition:transform .25s ease,box-shadow .25s ease}
.zz-media:hover{transform:translateY(-3px);box-shadow:var(--sh-hover)}
.zz-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.zz-kicker{font-size:13px;font-weight:600;color:var(--accent);letter-spacing:.6px}
.zz-body h3{font-size:20px;font-weight:600;margin:10px 0 12px}
.zz-body p{margin:0 0 14px;color:var(--text-2)}
.zz-list{list-style:none;display:grid;gap:10px}
.zz-list li{position:relative;padding-left:20px;color:var(--text-2);font-size:15px;line-height:1.75}
.zz-list li::before{content:"\2726";position:absolute;left:0;top:0;color:var(--brand);font-size:12px;line-height:2.1}

/* ---------- 对比表 ---------- */
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-card);-webkit-overflow-scrolling:touch}
table.compare{width:100%;min-width:780px;border-collapse:collapse;font-size:15px}
.compare th,.compare td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line)}
.compare tbody tr:last-child th,.compare tbody tr:last-child td{border-bottom:0}
.compare thead th{background:#E9EDF8;font-size:14px;font-weight:600;color:var(--text);position:sticky;top:0}
.compare thead th:first-child{left:0;z-index:3}
.compare tbody th{position:sticky;left:0;z-index:2;background:#fff;font-weight:600;color:var(--text);box-shadow:1px 0 0 var(--line);min-width:150px}
.compare tbody td{color:var(--text-2)}
.compare tbody tr:hover td{background:#FAFCFF}
.compare .col-rec{background:#F7F8FE}
.compare tbody tr:hover .col-rec{background:#F2F5FF}
.compare .yes{color:#2A7C74;font-weight:600}
.table-note{margin-top:14px;font-size:13px;color:var(--text-3)}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px}
.faq-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item:hover{border-color:#CFD8EC}
.faq-item.is-open{border-color:#C9D2EC;box-shadow:var(--sh-card)}
.faq-item.is-open::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand)}
.faq-q{width:100%;min-height:52px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 20px;background:none;border:0;text-align:left;font-size:16px;font-weight:600;color:var(--text)}
.faq-q .chev{width:20px;height:20px;flex:none;color:var(--text-3);transition:transform .25s ease,color .25s ease}
.faq-item.is-open .chev{transform:rotate(180deg);color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{margin:0;padding:0 20px 20px;color:var(--text-2);font-size:15px;line-height:1.8}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 88px}
.cta-card{
  border:1px solid var(--brand);border-radius:var(--r-img);
  background:linear-gradient(120deg,#EEF0FB 0%,#F8FAFF 60%,#E9F5F3 100%);
  padding:32px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:var(--sh-card);
}
.cta-card h2{font-size:clamp(22px,2.2vw,28px);font-weight:600;line-height:1.4}
.cta-card p{margin:10px 0 0;color:var(--text-2);font-size:15px;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-note{margin-top:14px;font-size:13px;color:var(--text-3)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:#C7CFE4;padding-top:56px;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:16px;text-decoration:none}
.footer-brand:hover{text-decoration:none}
.footer-brand .brand-mark{background:rgba(255,255,255,.1)}
.footer-about{margin:14px 0 0;max-width:320px;font-size:14px;line-height:1.8;color:#9FA9C4}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col ul{list-style:none;display:grid;gap:10px;font-size:14px}
.footer-col a{color:#C7CFE4;text-decoration:none}
.footer-col a:hover{color:var(--accent);text-decoration:none}
.footer-col span{color:#9FA9C4}
.footer-bottom{
  margin-top:40px;padding:20px 0;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8B96B4;
}

/* ---------- 响应式 ---------- */
@media (min-width:1024px) and (max-width:1279px){
  :root{--sidebar-w:76px}
  .sidebar{padding:0 8px 16px;align-items:center}
  .brand{justify-content:center;padding:0;height:72px}
  .brand-text{display:none}
  .side-nav{width:100%;align-items:center}
  .nav-item{width:44px;justify-content:center;padding:0}
  .nav-item.is-active::before{left:0}
  .nav-txt{
    position:absolute;left:56px;top:50%;transform:translateY(-50%);
    background:#151C33;color:#fff;font-size:13px;font-weight:500;
    padding:6px 10px;border-radius:8px;white-space:nowrap;
    opacity:0;pointer-events:none;transition:opacity .16s ease;z-index:70;
  }
  .nav-item:hover .nav-txt{opacity:1}
  .side-card{display:none}
}
@media (max-width:1023px){
  .sidebar{width:280px;transform:translateX(-100%);transition:transform .28s ease;box-shadow:0 24px 60px -20px rgba(19,26,46,.4)}
  .sidebar.is-open{transform:translateX(0)}
  .content{margin-left:0}
  .topbar{display:flex}
  .drawer-mask{display:block}
  .nav-item.is-active::before{left:-16px}
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .zz{grid-template-columns:1fr;gap:24px}
  .zz--reverse .zz-media{order:0}
  .stat-row{grid-template-columns:1fr}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .band{padding:56px 0}
  .page-hero{padding:16px 0 40px}
  .lead{font-size:16px}
  .cta-card{padding:24px}
  .cta-band{padding-bottom:64px}
  .crumb{padding-top:24px}
}
@media (max-width:600px){
  .container{padding:0 20px}
  .footer-grid{grid-template-columns:1fr}
  .hero-actions{gap:12px}
  .btn{width:100%}
  .hero-actions .btn-link{width:auto}
  .cta-actions{width:100%}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category2 */
:root{
  --brand:#2E3A8C;
  --brand-dark:#232E77;
  --brand-soft:#EEF0FB;
  --accent:#3AA79E;
  --accent-soft:#E7F4F2;
  --spark:#E8873A;
  --spark-dark:#D3762C;
  --bg:#F5F7FC;
  --card:#FFFFFF;
  --band:#EEF1FA;
  --line:#E4E9F2;
  --line-strong:#D8E0EE;
  --text:#131A2E;
  --text-2:#3B4763;
  --muted:#6B7893;
  --footer:#151C33;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-lg:16px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(19,26,46,.06),0 12px 28px -12px rgba(19,26,46,.16);
  --shadow-hover:0 2px 6px rgba(19,26,46,.08),0 18px 38px -14px rgba(19,26,46,.24);
  --sidebar:248px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","SF Pro Display","PingFang SC",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-cn);font-size:16px;line-height:1.85;font-weight:400;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{margin:0;letter-spacing:.4px;line-height:1.4}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(46,58,140,.16);border-radius:8px}
::selection{background:var(--brand-soft);color:var(--brand-dark)}

/* 侧栏壳层 */
.sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;padding:0 16px 20px;z-index:60}
.brand{height:72px;display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(140deg,#3AA79E 0%,#2E3A8C 82%);display:grid;place-items:center;flex:0 0 36px;box-shadow:0 6px 16px -8px rgba(46,58,140,.7)}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:.5px;line-height:1.3}
.brand-text span{font-size:12px;color:var(--muted);line-height:1.4}
.side-nav{display:flex;flex-direction:column;gap:4px;margin-top:8px;flex:1 1 auto}
.nav-item{position:relative;display:flex;align-items:center;gap:12px;height:40px;padding:0 12px;border-radius:8px;color:var(--text-2);font-size:14.5px;font-weight:500;text-decoration:none;transition:background .18s,color .18s}
.nav-item svg{width:20px;height:20px;flex:0 0 20px;color:var(--muted);transition:color .18s}
.nav-item:hover{background:var(--brand-soft);color:var(--brand);text-decoration:none}
.nav-item:hover svg{color:var(--brand)}
.nav-item.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.nav-item.is-active svg{color:var(--brand)}
.nav-item.is-active::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:0 3px 3px 0;background:var(--brand)}
.sidebar-card{margin-top:auto;background:var(--band);border-radius:12px;padding:14px 16px;font-size:13px;line-height:1.7;color:var(--text-2)}
.sidebar-card strong{display:block;color:var(--text);font-size:13.5px;margin-bottom:4px}
.sidebar-card a{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:13px;font-weight:600}

/* 主内容区 */
.main{margin-left:var(--sidebar);min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.topbar{display:none}

/* 面包屑与页首 */
.crumb-bar{padding:26px 0 0}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#B7C1D8}
.breadcrumb .current{color:var(--brand);font-weight:600}
.page-hero{position:relative;overflow:hidden;background-color:#F7F9FE;background-image:linear-gradient(96deg,rgba(247,249,254,.94) 0%,rgba(247,249,254,.82) 52%,rgba(238,240,251,.78) 100%),url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center right;border-bottom:1px solid var(--line);padding:44px 0 52px}
.page-hero::after{content:"";position:absolute;inset:auto -40px -60px auto;width:320px;height:320px;background:radial-gradient(circle,rgba(58,167,158,.16) 0%,rgba(58,167,158,0) 68%);pointer-events:none}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:var(--radius-pill);padding:5px 14px;margin-bottom:18px}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--spark);display:block}
h1{font-size:clamp(30px,4vw,44px);font-weight:700;line-height:1.35;letter-spacing:.5px;margin:0 0 16px}
.lead{font-size:17px;line-height:1.8;color:var(--text-2);max-width:720px}
.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:26px}
.hero-trust{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:20px;font-size:13px;color:var(--muted)}
.hero-trust span{display:inline-flex;align-items:center;gap:6px}
.hero-trust .divider{color:#C3CCE0}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:34px;max-width:640px}
.hero-stat strong{display:block;font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--brand);line-height:1.2}
.hero-stat span{font-size:13px;color:var(--muted)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;text-decoration:none;transition:background .18s,color .18s,transform .18s,box-shadow .18s,border-color .18s;white-space:nowrap}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(46,58,140,.9)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 16px 28px -14px rgba(46,58,140,.85)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px)}
.btn-ghost{border-color:transparent;background:transparent;color:var(--brand);padding:0 6px}
.btn-ghost:hover{color:var(--brand-dark);text-decoration:underline}
.btn-spark{background:var(--spark);color:#fff;box-shadow:0 10px 22px -14px rgba(232,135,58,.95)}
.btn-spark:hover{background:var(--spark-dark);color:#fff;transform:translateY(-1px)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* 板块通用 */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:600;margin-bottom:12px}
.section-head p{color:var(--text-2);font-size:16px}
.section-head.row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.section.band{background:var(--band)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:var(--radius-pill);background:var(--brand-soft);color:var(--brand);font-size:12.5px;font-weight:500}
.tag.accent{background:#FCEEDF;color:#B8651F}
.tag.cyan{background:var(--accent-soft);color:#217A72}

/* Bento 栅格 */
.bento{display:grid;grid-template-columns:1.08fr .92fr;gap:24px}
.bento-item{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:14px;transition:transform .2s,box-shadow .2s,border-color .2s;overflow:hidden}
.bento-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D7DEF0}
.bento-item h3{font-size:20px;font-weight:600}
.bento-item p{font-size:15px;color:var(--text-2);line-height:1.8}
.bento-media{margin:-24px -24px 2px;height:230px;overflow:hidden;background:var(--band)}
.bento-media img{width:100%;height:100%;object-fit:cover}
.bento-media.short{height:168px}
.b-1{grid-column:1;grid-row:1/span 2}
.b-2{grid-column:2;grid-row:1}
.b-3{grid-column:2;grid-row:2}
.b-4{grid-column:1;grid-row:3}
.b-5{grid-column:2;grid-row:3}
.b-6{grid-column:1/span 2;grid-row:4}
.b-metric{background:linear-gradient(158deg,#EEF0FB 0%,#F8FAFF 100%);border-color:#DCE2F6;justify-content:center}
.b-metric .num{font-family:var(--font-num);font-size:clamp(34px,4vw,44px);font-weight:700;color:var(--brand);line-height:1.1}
.b-metric .sub{font-size:13px;color:var(--muted);margin-bottom:6px}
.meters{height:8px;border-radius:var(--radius-pill);background:#E1E6F6;overflow:hidden;margin-top:4px}
.meters span{display:block;height:100%;border-radius:var(--radius-pill);background:var(--accent)}
.b-quote{background:var(--band);border:1px dashed #CBD5EA;justify-content:center}
.b-quote .mark{font-family:var(--font-num);font-size:38px;font-weight:700;color:#C3CCE6;line-height:1}
.b-quote p{font-size:15.5px;color:var(--text);line-height:1.8}
.b-quote .from{font-size:13px;color:var(--muted)}
.mini-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:2px}
.mini{position:relative;padding-left:18px}
.mini::before{content:"";position:absolute;left:0;top:8px;width:8px;height:8px;background:var(--brand);border-radius:2px;transform:rotate(45deg)}
.mini strong{display:block;font-size:15.5px;font-weight:600;margin-bottom:4px}
.mini span{font-size:13.5px;color:var(--muted);line-height:1.7}

/* 步骤条 */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;position:relative}
.steps::before{content:"";position:absolute;top:48px;left:7%;right:7%;height:1px;background:repeating-linear-gradient(90deg,#C9D2E8 0 8px,transparent 8px 16px)}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px 24px;box-shadow:var(--shadow-card);transition:transform .2s,box-shadow .2s}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.step .idx{width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-family:var(--font-num);font-size:15px;font-weight:700;margin-bottom:16px;box-shadow:0 10px 20px -12px rgba(46,58,140,.9)}
.step:nth-child(2) .idx{background:#3F4CA8}
.step:nth-child(3) .idx{background:var(--accent)}
.step h3{font-size:18px;font-weight:600;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.step .meta{display:block;margin-top:12px;font-size:13px;color:var(--muted)}

/* 评价 */
.quotes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:14px;transition:transform .2s,box-shadow .2s}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.quote-head{display:flex;align-items:center;gap:12px}
.avatar{width:44px;height:44px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-weight:700;font-size:15px;flex:0 0 44px}
.avatar.alt{background:var(--accent-soft);color:#217A72}
.avatar.alt2{background:#FCEEDF;color:#B8651F}
.quote-head strong{display:block;font-size:15px;font-weight:600}
.quote-head em{font-style:normal;font-size:12.5px;color:var(--muted)}
.stars{color:var(--spark);font-size:14px;letter-spacing:2px}
.quote-card p{font-size:15px;color:var(--text-2);line-height:1.85}
.quote-foot{display:flex;align-items:center;gap:10px;margin-top:auto;font-size:13px;color:var(--muted)}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq-item summary{list-style:none;cursor:pointer;min-height:52px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 20px;font-size:15.5px;font-weight:600;color:var(--text)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"";width:9px;height:9px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg);transition:transform .22s;flex:0 0 9px;margin-top:-4px}
.faq-item[open]{border-color:#CBD5EA;box-shadow:var(--shadow-card)}
.faq-item[open] summary::after{transform:rotate(-135deg);margin-top:4px}
.faq-item[open]::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;background:var(--brand)}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* CTA 条 */
.cta-band{position:relative;overflow:hidden;background:#fff;border:1px solid var(--brand);border-radius:var(--radius-lg);padding:32px;display:flex;align-items:center;justify-content:space-between;gap:32px;box-shadow:var(--shadow-card)}
.cta-band::after{content:"";position:absolute;right:-70px;top:-70px;width:230px;height:230px;border-radius:50%;background:radial-gradient(circle,rgba(58,167,158,.14) 0%,rgba(58,167,158,0) 70%)}
.cta-copy{max-width:640px;position:relative;z-index:1}
.cta-copy h2{font-size:clamp(22px,2.4vw,28px);font-weight:600;margin-bottom:10px}
.cta-copy p{font-size:15px;color:var(--text-2)}
.cta-price{display:flex;align-items:baseline;gap:8px;margin-top:14px;font-family:var(--font-num)}
.cta-price strong{font-size:26px;font-weight:700;color:var(--spark)}
.cta-price span{font-size:13.5px;color:var(--muted);font-family:var(--font-cn)}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;position:relative;z-index:1}
.cta-note{margin-top:14px;font-size:13px;color:var(--muted)}

/* 页脚 */
.site-footer{background:var(--footer);color:#C6CDE3;padding:64px 0 0;margin-top:auto;position:relative;overflow:hidden}
.site-footer::before{content:"";position:absolute;left:-60px;top:-80px;width:320px;height:320px;background:radial-gradient(circle,rgba(58,167,158,.14) 0%,rgba(58,167,158,0) 70%);pointer-events:none}
.footer-inner{position:relative;padding-bottom:40px}
.footer-grid{display:grid;grid-template-columns:1.65fr 1fr 1fr 1.15fr;gap:32px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;text-decoration:none;margin-bottom:14px}
.footer-brand:hover{text-decoration:none;color:#fff}
.footer-brand .brand-mark{background:linear-gradient(140deg,#3AA79E 0%,#2E3A8C 88%)}
.footer-brand strong{font-size:16px;font-weight:700;letter-spacing:.5px}
.footer-about{font-size:14px;line-height:1.85;color:#98A2C0;max-width:330px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{display:grid;gap:11px;font-size:14px}
.footer-col a{color:#B9C2DC;text-decoration:none;transition:color .18s}
.footer-col a:hover{color:var(--accent);text-decoration:underline}
.footer-col span{color:#98A2C0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#8A93B0;position:relative}

/* 遮罩 */
.scrim{position:fixed;inset:0;background:rgba(19,26,46,.45);opacity:0;visibility:hidden;transition:opacity .22s,visibility .22s;z-index:55}
body.drawer-open .scrim{opacity:1;visibility:visible}

/* 响应式：中等屏侧栏收窄 */
@media (min-width:1024px) and (max-width:1279px){
  :root{--sidebar:76px}
  .sidebar{padding:0 12px 20px}
  .brand{justify-content:center}
  .brand-text{display:none}
  .sidebar-card{display:none}
  .nav-item{justify-content:center;padding:0}
  .nav-txt{position:absolute;left:calc(100% + 14px);top:50%;transform:translateY(-50%);background:var(--footer);color:#fff;font-size:13px;font-weight:500;padding:7px 12px;border-radius:8px;white-space:nowrap;opacity:0;visibility:hidden;transition:opacity .16s,visibility .16s;pointer-events:none;z-index:70}
  .nav-txt::before{content:"";position:absolute;left:-5px;top:50%;transform:translateY(-50%) rotate(45deg);width:9px;height:9px;background:var(--footer)}
  .nav-item:hover .nav-txt,.nav-item:focus-visible .nav-txt{opacity:1;visibility:visible}
  .section{padding:72px 0}
}

/* 响应式：平板与手机 */
@media (max-width:1023px){
  .topbar{display:flex;position:fixed;top:0;left:0;right:0;height:56px;align-items:center;gap:12px;padding:0 16px;background:rgba(255,255,255,.97);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);z-index:58}
  .hamburger{width:44px;height:44px;display:grid;place-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius-btn);cursor:pointer;padding:0}
  .hamburger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
  .hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px}
  .hamburger span::before{top:-6px}
  .hamburger span::after{top:6px}
  .topbar .topbar-brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:15px;letter-spacing:.4px;min-width:0}
  .topbar .topbar-brand .brand-mark{width:28px;height:28px;flex:0 0 28px;border-radius:9px}
  .topbar .topbar-brand .brand-mark svg{width:15px;height:15px}
  .topbar .topbar-cta{margin-left:auto;height:38px;padding:0 14px;font-size:13.5px}
  .sidebar{width:280px;transform:translateX(-100%);transition:transform .26s ease;box-shadow:0 24px 48px -20px rgba(19,26,46,.5);padding-top:8px}
  body.drawer-open .sidebar{transform:none}
  .nav-item{height:46px;font-size:15px}
  .main{margin-left:0;padding-top:56px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section.tight{padding:44px 0}
  .page-hero{padding:32px 0 40px}
  .bento{grid-template-columns:1fr}
  .b-1,.b-2,.b-3,.b-4,.b-5,.b-6{grid-column:auto;grid-row:auto}
  .steps{grid-template-columns:1fr}
  .steps::before{display:none}
  .quotes{grid-template-columns:1fr}
  .mini-grid{grid-template-columns:1fr;gap:16px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-about{max-width:none}
}
@media (max-width:600px){
  .hero-stats{grid-template-columns:1fr;gap:14px;max-width:none}
  .hero-stat{display:flex;align-items:baseline;gap:10px}
  .hero-stat strong{font-size:20px}
  .hero-actions{flex-direction:column;align-items:stretch;gap:12px}
  .hero-actions .btn{width:100%}
  .hero-actions .btn-ghost{width:auto;justify-content:flex-start}
  .cta-actions{width:100%;flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .bento-media{height:190px}
  .bento-media.short{height:160px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  h1{font-size:clamp(27px,7vw,34px)}
}

/* roulang page: category3 */
/* ===== 设计变量 ===== */
:root{
  --c-primary:#2E3A8C;
  --c-primary-dark:#232E77;
  --c-primary-soft:#EEF0FB;
  --c-teal:#3AA79E;
  --c-teal-soft:#E7F4F3;
  --c-orange:#E8873A;
  --c-orange-dark:#D2742A;
  --c-bg:#F5F7FC;
  --c-card:#FFFFFF;
  --c-soft:#EEF1FA;
  --c-line:#E4E9F2;
  --c-line-strong:#D8E0EE;
  --t-1:#131A2E;
  --t-2:#3B4763;
  --t-3:#6B7893;
  --footer-bg:#151C33;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-badge:999px;
  --r-lg:16px;
  --sh-card:0 1px 2px rgba(19,26,46,.06), 0 12px 28px -12px rgba(19,26,46,.16);
  --sh-hover:0 2px 6px rgba(19,26,46,.08), 0 22px 38px -16px rgba(19,26,46,.24);
  --sidebar-w:248px;
  --sp-4:4px; --sp-8:8px; --sp-12:12px; --sp-16:16px; --sp-24:24px;
  --sp-32:32px; --sp-48:48px; --sp-64:64px; --sp-88:88px;
}

/* ===== reset / base ===== */
*,*::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",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t-1);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;}
a:hover{color:var(--c-primary-dark);}
button,input,textarea,select{font:inherit;color:inherit;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}

/* ===== 布局 ===== */
.app-main{
  margin-left:var(--sidebar-w);
  padding:0 var(--sp-32) 0;
  min-height:100vh;
}
.container{width:100%;max-width:1200px;margin:0 auto;}
.section{padding:var(--sp-88) 0;}
.section--tight{padding:var(--sp-64) 0;}
.section--soft{background:var(--c-soft);}
.section-head{max-width:720px;margin-bottom:var(--sp-32);}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);
  font-weight:600;
  line-height:1.35;
  letter-spacing:.3px;
}
.section-head p{margin-top:10px;color:var(--t-2);font-size:15px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-soft);
  border-radius:var(--r-badge);
  padding:5px 12px;margin-bottom:14px;
}

/* ===== 左侧 App Shell 侧栏 ===== */
.app-sidebar{
  position:fixed;top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:#fff;
  border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;
  padding:0 16px 20px;
  z-index:60;
}
.sidebar-head{height:72px;display:flex;align-items:center;padding:0 8px;flex:0 0 auto;}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  border-radius:10px;background:var(--c-primary);
  display:grid;place-items:center;
}
.brand-mark svg{width:18px;height:18px;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:16px;font-weight:700;color:var(--t-1);letter-spacing:.2px;}
.brand-text em{font-style:normal;font-size:12px;color:var(--t-3);}
.side-nav{display:flex;flex-direction:column;gap:4px;margin-top:6px;}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:12px;
  height:40px;padding:0 12px;border-radius:8px;
  font-size:15px;color:var(--t-2);
  transition:background .18s ease,color .18s ease;
}
.nav-item svg{width:20px;height:20px;flex:0 0 20px;color:var(--t-3);transition:color .18s ease;}
.nav-item:hover{background:var(--c-soft);color:var(--t-1);}
.nav-item:hover svg{color:var(--c-primary);}
.nav-item.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;}
.nav-item.is-active svg{color:var(--c-primary);}
.nav-item.is-active::before{
  content:"";position:absolute;left:-16px;top:8px;bottom:8px;width:3px;
  background:var(--c-primary);border-radius:0 3px 3px 0;
}
.sidebar-card{
  margin-top:auto;
  background:var(--c-soft);
  border-radius:12px;
  padding:16px;
}
.sidebar-card h3{font-size:14px;font-weight:600;color:var(--t-1);}
.sidebar-card p{font-size:13px;line-height:1.7;color:var(--t-3);margin-top:6px;}
.sidebar-card a{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:12px;font-size:13px;font-weight:600;color:var(--c-primary);
}
.sidebar-card a::after{content:"→";}

/* 顶部移动栏 */
.app-topbar{
  position:fixed;top:0;left:0;right:0;height:56px;
  background:#fff;border-bottom:1px solid var(--c-line);
  display:none;align-items:center;justify-content:space-between;
  padding:0 16px;z-index:65;
}
.topbar-left{display:flex;align-items:center;gap:10px;}
.burger{
  width:44px;height:44px;display:grid;place-items:center;
  border:0;background:transparent;border-radius:8px;cursor:pointer;
}
.burger:hover{background:var(--c-soft);}
.burger span{display:block;width:18px;height:2px;background:var(--t-1);border-radius:2px;position:relative;}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--t-1);border-radius:2px;
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.topbar-brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:15px;}
.topbar-brand .brand-mark{width:28px;height:28px;flex:0 0 28px;border-radius:8px;}
.topbar-brand .brand-mark svg{width:15px;height:15px;}
.topbar-cta{
  height:36px;padding:0 14px;border-radius:8px;
  background:var(--c-primary);color:#fff;font-size:13px;font-weight:600;
  display:inline-flex;align-items:center;
}
.nav-overlay{
  position:fixed;inset:0;background:rgba(19,26,46,.45);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:68;
}
body.nav-open .nav-overlay{opacity:1;visibility:visible;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);}
.btn-outline{border-color:var(--c-primary);color:var(--c-primary);background:transparent;}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.btn-ghost{background:transparent;color:var(--c-primary);padding:0 6px;}
.btn-ghost::after{content:"→";transition:transform .18s ease;}
.btn-ghost:hover{color:var(--c-primary-dark);}
.btn-ghost:hover::after{transform:translateX(3px);}
.btn-buy{background:var(--c-orange);color:#fff;}
.btn-buy:hover{background:var(--c-orange-dark);color:#fff;transform:translateY(-1px);}
.btn:disabled,.btn.is-disabled{opacity:.45;transform:none;cursor:not-allowed;box-shadow:none;}
.btn-block{width:100%;}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;
  border-radius:var(--r-badge);
  padding:4px 11px;font-size:13px;font-weight:600;
  background:var(--c-primary-soft);color:var(--c-primary);
}
.badge-teal{background:var(--c-teal-soft);color:#2B7F78;}
.badge-hot{background:var(--c-orange);color:#fff;}
.tag{
  display:inline-flex;align-items:center;
  font-size:13px;color:var(--t-3);
  background:var(--c-soft);border-radius:6px;padding:3px 9px;
}

/* ===== 面包屑 ===== */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--t-3);margin-bottom:18px;
}
.crumb a{color:var(--t-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:var(--c-line-strong);}
.crumb .cur{color:var(--t-2);font-weight:600;}

/* ===== 分类 Hero ===== */
.cat-hero{position:relative;overflow:hidden;padding:64px 0 72px;}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.16;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(245,247,252,.4),rgba(245,247,252,.96));
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
}
.hero-copy h1{
  font-size:clamp(30px,4vw,44px);
  font-weight:700;line-height:1.35;letter-spacing:.3px;
}
.hero-copy h1 .hl{color:var(--c-primary);}
.hero-lead{
  margin-top:16px;max-width:52ch;
  font-size:17px;line-height:1.85;color:var(--t-2);
}
.hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:26px;}
.hero-trust{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:22px;font-size:14px;color:var(--t-3);
}
.hero-trust li{display:flex;align-items:center;gap:10px;}
.hero-trust li + li::before{content:"";width:1px;height:14px;background:var(--c-line-strong);}
.hero-visual{
  border-radius:var(--r-lg);overflow:hidden;background:#fff;
  box-shadow:var(--sh-card);border:1px solid var(--c-line);
}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-visual figcaption{
  padding:12px 16px;font-size:13px;color:var(--t-3);
  display:flex;align-items:center;gap:10px;
}

/* ===== 价格卡 ===== */
.price-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:24px;align-items:stretch;margin-top:8px;
}
.price-card{
  position:relative;
  background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:30px 24px;
  display:flex;flex-direction:column;
  box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.price-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);}
.price-card.is-featured{
  border-color:var(--c-primary);
  box-shadow:0 0 0 1px var(--c-primary),var(--sh-card);
  transform:translateY(-8px);
}
.price-card.is-featured:hover{transform:translateY(-11px);box-shadow:0 0 0 1px var(--c-primary),var(--sh-hover);}
.rec-flag{
  position:absolute;top:-13px;left:24px;
  background:var(--c-orange);color:#fff;
  font-size:13px;font-weight:600;letter-spacing:.4px;
  border-radius:var(--r-badge);padding:4px 14px;
}
.price-name{font-size:20px;font-weight:600;}
.price-desc{font-size:14px;color:var(--t-3);margin-top:6px;min-height:44px;}
.price-line{display:flex;align-items:flex-end;gap:8px;margin-top:18px;}
.price-num{
  font-family:Inter,"PingFang SC",system-ui,sans-serif;
  font-size:38px;font-weight:700;line-height:1;color:var(--c-orange);
}
.price-num small{font-size:18px;font-weight:600;margin-right:2px;}
.price-unit{font-size:14px;color:var(--t-3);padding-bottom:4px;}
.price-feats{margin-top:22px;display:flex;flex-direction:column;gap:11px;}
.price-feats li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--t-2);line-height:1.6;
}
.price-feats li::before{
  content:"";flex:0 0 16px;width:16px;height:16px;margin-top:6px;
  background:var(--c-teal-soft);
  border:1.5px solid var(--c-teal);
  border-radius:50%;
  background-image:linear-gradient(45deg,transparent 46%,var(--c-teal) 46%,var(--c-teal) 54%,transparent 54%),
                   linear-gradient(135deg,transparent 58%,var(--c-teal) 58%,var(--c-teal) 66%,transparent 66%);
  background-repeat:no-repeat;background-position:2px 6px;
}
.price-cta{margin-top:26px;padding-top:22px;border-top:1px solid var(--c-line);}
.price-note{font-size:13px;color:var(--t-3);margin-top:10px;text-align:center;}

/* ===== 对比表 ===== */
.table-wrap{
  overflow-x:auto;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  -webkit-overflow-scrolling:touch;
}
table.cmp{min-width:760px;}
.cmp th,.cmp td{
  padding:16px 20px;text-align:left;font-size:15px;
  border-bottom:1px solid var(--c-line);color:var(--t-2);
}
.cmp thead th{background:var(--c-soft);color:var(--t-1);font-weight:600;font-size:15px;}
.cmp tbody tr:last-child td{border-bottom:0;}
.cmp th:first-child,.cmp td:first-child{
  position:sticky;left:0;background:#fff;z-index:2;
  box-shadow:1px 0 0 var(--c-line);color:var(--t-1);font-weight:600;
}
.cmp thead th:first-child{background:var(--c-soft);}
.cmp td .yes{color:var(--c-teal);font-weight:600;}
.cmp td .no{color:var(--t-3);}
.cmp thead th.featured{color:var(--c-primary);}

/* ===== 图文说明 ===== */
.split{
  display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;
}
.split-visual{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-card);border:1px solid var(--c-line);}
.split-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.split-copy h2{font-size:clamp(24px,2.6vw,32px);font-weight:600;line-height:1.35;}
.split-copy p{margin-top:14px;color:var(--t-2);font-size:16px;}
.detail-list{margin-top:22px;display:flex;flex-direction:column;gap:14px;}
.detail-list li{
  display:flex;gap:12px;align-items:flex-start;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:14px 18px;font-size:15px;color:var(--t-2);
}
.detail-list li strong{display:block;color:var(--t-1);font-size:15px;font-weight:600;}
.detail-list .dot{
  flex:0 0 10px;width:10px;height:10px;margin-top:9px;
  border-radius:50%;background:var(--c-primary);
}
.detail-list li:nth-child(2) .dot{background:var(--c-teal);}
.detail-list li:nth-child(3) .dot{background:var(--c-orange);}

/* ===== FAQ ===== */
.faq-list{max-width:900px;}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--c-line);
  border-radius:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item + .faq-item{margin-top:12px;}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:52px;padding:14px 20px;
  font-size:16px;font-weight:600;color:var(--t-1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-arrow{
  flex:0 0 10px;width:10px;height:10px;
  border-right:2px solid var(--t-3);border-bottom:2px solid var(--t-3);
  transform:rotate(45deg);transition:transform .22s ease;margin-right:4px;
}
.faq-item[open]{border-color:var(--c-primary);box-shadow:var(--sh-card);}
.faq-item[open] .faq-arrow{transform:rotate(-135deg);border-color:var(--c-primary);}
.faq-item[open]::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  background:var(--c-primary);border-radius:0 3px 3px 0;
}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--t-2);}
.faq-body p + p{margin-top:10px;}

/* ===== CTA 条 ===== */
.cta-band{
  background:#fff;border:1px solid var(--c-primary);border-radius:var(--r-lg);
  padding:32px 36px;box-shadow:var(--sh-card);
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-summary{display:flex;flex-direction:column;gap:8px;}
.cta-price{display:flex;align-items:baseline;gap:8px;}
.cta-price .num{
  font-family:Inter,"PingFang SC",system-ui,sans-serif;
  font-size:32px;font-weight:700;color:var(--c-orange);line-height:1;
}
.cta-price .unit{font-size:15px;color:var(--t-3);}
.cta-summary p{font-size:14px;color:var(--t-2);}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.cta-foot{margin-top:18px;font-size:14px;color:var(--t-3);text-align:center;}

/* ===== 空态 / 骨架 ===== */
.skeleton{
  background:linear-gradient(90deg,#EDF0F7 25%,#F5F7FC 37%,#EDF0F7 63%);
  background-size:400% 100%;
  animation:sk 1.4s ease infinite;
  border-radius:8px;
}
@keyframes sk{0%{background-position:100% 50%;}100%{background-position:0 50%;}}
.empty-state{
  background:#fff;border:1px dashed var(--c-line-strong);border-radius:var(--r-card);
  padding:40px 24px;text-align:center;
}
.empty-state p{font-size:14px;color:var(--t-3);margin-bottom:16px;}

/* ===== 页脚 ===== */
.site-footer{background:var(--footer-bg);color:#C3CBDD;margin-top:0;}
.footer-inner{padding:64px 0 40px;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;}
.footer-brand:hover{color:#fff;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);}
.footer-brand strong{font-size:16px;font-weight:700;letter-spacing:.2px;}
.footer-about{
  margin-top:14px;font-size:14px;line-height:1.8;color:#9AA5BE;max-width:320px;
}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;font-size:14px;color:#9AA5BE;}
.footer-col a{color:#C3CBDD;transition:color .18s ease;}
.footer-col a:hover{color:var(--c-teal);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:#8C97B0;
}

/* ===== 响应式 ===== */
@media (min-width:1024px) and (max-width:1279px){
  :root{--sidebar-w:76px;}
  .app-sidebar{padding:0 10px 20px;}
  .sidebar-head{justify-content:center;padding:0;}
  .brand-text{display:none;}
  .nav-item{justify-content:center;padding:0;}
  .nav-txt{
    position:absolute;left:calc(100% + 14px);top:50%;
    transform:translateY(-50%);
    background:var(--footer-bg);color:#fff;
    font-size:13px;font-weight:500;line-height:1.4;
    padding:6px 10px;border-radius:8px;white-space:nowrap;
    opacity:0;visibility:hidden;transition:opacity .16s ease,visibility .16s ease;
    z-index:80;
  }
  .nav-item:hover .nav-txt{opacity:1;visibility:visible;}
  .sidebar-card{display:none;}
}

@media (max-width:1023px){
  .app-sidebar{
    width:280px;transform:translateX(-100%);
    transition:transform .28s ease;
    z-index:70;
    box-shadow:0 20px 60px rgba(19,26,46,.24);
  }
  body.nav-open .app-sidebar{transform:translateX(0);}
  .app-topbar{display:flex;}
  .app-main{margin-left:0;padding:56px 20px 0;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .hero-grid{grid-template-columns:1fr;gap:28px;}
  .hero-visual img{aspect-ratio:4/3;}
  .split{grid-template-columns:1fr;gap:28px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 22px;}
}

@media (max-width:980px){
  .price-grid{grid-template-columns:1fr;max-width:520px;margin:8px auto 0;}
  .price-card.is-featured{transform:none;order:-1;}
  .price-card.is-featured:hover{transform:translateY(-3px);}
}

@media (max-width:768px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-inner{padding:48px 0 32px;}
}

@media (max-width:600px){
  body{font-size:15px;}
  .app-main{padding:56px 16px 0;}
  .hero-copy h1{font-size:30px;}
  .hero-lead{font-size:16px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .price-card{padding:24px 20px;}
  .cmp th,.cmp td{padding:14px 16px;font-size:14px;}
}

/* roulang page: category4 */
:root{
  --brand:#2E3A8C;
  --brand-dark:#232E77;
  --brand-soft:#EEF0FB;
  --teal:#3AA79E;
  --teal-soft:#E8F5F3;
  --amber:#E8873A;
  --amber-soft:#FDF1E6;
  --bg:#F5F7FC;
  --card:#FFFFFF;
  --block:#EEF1FA;
  --line:#E4E9F2;
  --t1:#131A2E;
  --t2:#3B4763;
  --t3:#6B7893;
  --footer:#151C33;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --r-img:16px;
  --shadow:0 1px 2px rgba(19,26,46,.06), 0 12px 28px -12px rgba(19,26,46,.16);
  --shadow-hover:0 2px 4px rgba(19,26,46,.08), 0 20px 36px -14px rgba(19,26,46,.24);
  --sidebar-w:248px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease, background-color .18s ease, border-color .18s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- 侧边导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  z-index:60;
  transition:transform .26s ease;
}
.brand{
  height:72px;display:flex;align-items:center;gap:10px;
  padding:0 20px;border-bottom:1px solid var(--line);
  flex:0 0 auto;
}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  background:linear-gradient(140deg,var(--brand),#4353B5);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px -6px rgba(46,58,140,.6);
}
.brand-mark svg{width:20px;height:20px;}
.brand-txt{display:flex;flex-direction:column;line-height:1.25;}
.brand-txt strong{font-size:16px;font-weight:700;color:var(--t1);letter-spacing:.3px;}
.brand-txt span{font-size:11px;color:var(--t3);letter-spacing:.4px;}
.side-nav{padding:16px 12px;display:flex;flex-direction:column;gap:6px;flex:1 1 auto;overflow-y:auto;}
.nav-item{
  display:flex;align-items:center;gap:12px;
  height:40px;padding:0 12px;border-radius:8px;
  color:var(--t2);font-size:15px;font-weight:500;
  position:relative;
}
.nav-item svg{width:19px;height:19px;flex:0 0 19px;color:var(--t3);transition:color .18s ease;}
.nav-item:hover{background:var(--block);color:var(--brand);}
.nav-item:hover svg{color:var(--brand);}
.nav-item.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.nav-item.is-active svg{color:var(--brand);}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand);
}
.side-card{
  margin:12px;padding:14px;border-radius:12px;background:var(--block);
  flex:0 0 auto;
}
.side-card h4{font-size:14px;font-weight:600;color:var(--t1);margin-bottom:4px;}
.side-card p{font-size:12.5px;color:var(--t3);line-height:1.6;margin-bottom:10px;}
.side-card a{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--brand);
}
.side-card a:hover{color:var(--brand-dark);}

/* ---------- 顶部移动栏 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:70;
  background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  align-items:center;gap:12px;padding:0 16px;
}
.burger{
  width:40px;height:40px;border:1px solid var(--line);background:#fff;
  border-radius:10px;display:flex;align-items:center;justify-content:center;
  color:var(--t2);
}
.burger:hover{background:var(--block);color:var(--brand);}
.topbar-brand{font-weight:700;font-size:16px;color:var(--t1);flex:1 1 auto;letter-spacing:.3px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(19,26,46,.45);
  opacity:0;visibility:hidden;transition:opacity .24s ease;z-index:65;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- 主区域 ---------- */
.page{margin-left:var(--sidebar-w);display:block;}
.main{padding:0 0 88px;}

/* ---------- 面包屑 ---------- */
.crumb{
  max-width:1200px;margin:0 auto;padding:28px 32px 0;
  display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--t3);
  flex-wrap:wrap;
}
.crumb a{color:var(--t3);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#B9C2D6;}
.crumb .cur{color:var(--t1);font-weight:600;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .16s ease, box-shadow .18s ease, background-color .18s ease, color .18s ease, border-color .18s ease;
  white-space:nowrap;
}
.btn svg{width:17px;height:17px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px -10px rgba(46,58,140,.85);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn-outline{background:transparent;color:var(--brand);border-color:#C9CFEC;}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand);}
.btn-ghost{background:transparent;color:var(--brand);padding:0 6px;height:auto;}
.btn-ghost:hover{color:var(--brand-dark);}
.btn-amber{background:var(--amber);color:#fff;box-shadow:0 8px 18px -10px rgba(232,135,58,.9);}
.btn-amber:hover{background:#D3772B;color:#fff;transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:600;
}
.tag-teal{background:var(--teal-soft);color:#2A837C;}
.badge-price{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:var(--r-pill);
  background:var(--amber-soft);color:#C46A22;
  font-size:12.5px;font-weight:700;
}

/* ---------- Hero ---------- */
.hero-wrap{
  max-width:1200px;margin:22px auto 0;padding:0 32px;
}
.cat-hero{
  position:relative;overflow:hidden;border-radius:var(--r-img);
  background:linear-gradient(115deg,#1E2760 0%,#2E3A8C 55%,#3B4AA5 100%);
  color:#fff;padding:52px 48px;
  box-shadow:var(--shadow);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.24;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 18% 20%, rgba(255,255,255,.55) 0 1.2px, transparent 1.6px),
                   radial-gradient(circle at 72% 34%, rgba(255,255,255,.4) 0 1px, transparent 1.4px),
                   radial-gradient(circle at 44% 78%, rgba(255,255,255,.35) 0 1px, transparent 1.4px),
                   radial-gradient(circle at 88% 74%, rgba(255,255,255,.4) 0 1.2px, transparent 1.6px);
  background-size:220px 220px,280px 280px,340px 340px,400px 400px;
  opacity:.5;pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;max-width:760px;}
.cat-hero h1{
  font-size:clamp(30px,4vw,44px);font-weight:700;line-height:1.35;
  letter-spacing:.4px;margin-bottom:14px;
}
.cat-hero p{
  font-size:16.5px;line-height:1.8;color:rgba(255,255,255,.9);max-width:640px;
}
.hero-actions{display:flex;align-items:center;gap:16px;margin-top:26px;flex-wrap:wrap;}
.hero-actions .btn-primary{background:#fff;color:var(--brand);box-shadow:0 10px 22px -12px rgba(0,0,0,.6);}
.hero-actions .btn-primary:hover{background:#EEF0FB;color:var(--brand-dark);}
.hero-actions .link-arrow{color:#fff;font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px;}
.hero-actions .link-arrow:hover{color:#CDE9E6;}
.hero-facts{
  display:flex;gap:14px;flex-wrap:wrap;margin-top:26px;
  font-size:13.5px;color:rgba(255,255,255,.82);
}
.hero-facts span{display:inline-flex;align-items:center;gap:8px;}
.hero-facts span+span::before{content:"";width:1px;height:12px;background:rgba(255,255,255,.35);margin-right:14px;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0 0;}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:600;line-height:1.4;letter-spacing:.3px;}
.section-head p{margin-top:10px;color:var(--t3);font-size:15.5px;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px;}
.section-head-row .section-head{margin-bottom:0;}

/* ---------- 检索条 ---------- */
.search-bar{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);padding:20px;
  display:grid;grid-template-columns:1.6fr 1fr auto;gap:14px;align-items:end;
}
.field{display:flex;flex-direction:column;gap:7px;}
.field label{font-size:13.5px;font-weight:600;color:var(--t2);}
.field .control{position:relative;display:flex;align-items:center;}
.field .control svg{position:absolute;left:14px;width:17px;height:17px;color:var(--t3);}
.input,.select,.textarea{
  width:100%;height:44px;border:1px solid #D8E0EE;border-radius:var(--r-btn);
  background:#fff;padding:0 14px;color:var(--t1);
  transition:border-color .18s ease, box-shadow .18s ease;
}
.input::placeholder,.textarea::placeholder{color:#9AA6BE;}
.input:focus,.select:focus,.textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(46,58,140,.14);
}
.input.with-icon{padding-left:40px;}
.textarea{height:132px;padding:12px 14px;resize:vertical;line-height:1.7;}
.select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236B7893' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;}
.search-tip{margin-top:12px;font-size:13.5px;color:var(--t3);}

/* ---------- FAQ ---------- */
.faq-group + .faq-group{margin-top:44px;}
.faq-group-head{
  display:flex;align-items:center;gap:12px;margin-bottom:16px;
}
.faq-group-head .dot{
  width:30px;height:30px;flex:0 0 30px;border-radius:9px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;
}
.faq-group-head h3{font-size:20px;font-weight:600;}
.faq-group-head .count{margin-left:auto;font-size:13px;color:var(--t3);}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  position:relative;overflow:hidden;
  transition:border-color .18s ease, box-shadow .2s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--brand);transform:scaleY(0);transform-origin:top;
  transition:transform .22s ease;
}
.faq-item[open]::before{transform:scaleY(1);}
.faq-item:hover{border-color:#CFD8EC;box-shadow:var(--shadow);}
.faq-item summary{
  min-height:52px;display:flex;align-items:center;gap:14px;
  padding:14px 52px 14px 22px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--t1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .arrow{
  position:absolute;right:18px;top:18px;width:22px;height:22px;color:var(--t3);
  transition:transform .24s ease, color .18s ease;
}
.faq-item[open] summary .arrow{transform:rotate(180deg);color:var(--brand);}
.faq-item .answer{
  padding:0 52px 20px 22px;font-size:15px;line-height:1.8;color:var(--t2);
}
.faq-item .answer p+p{margin-top:10px;}
.faq-item .answer a{text-decoration:underline;text-underline-offset:3px;}

/* ---------- 资源卡片 ---------- */
.res-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.res-card{
  display:flex;gap:18px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow);
  transition:transform .2s ease, box-shadow .22s ease, border-color .2s ease;
}
.res-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D3DAEE;}
.res-thumb{
  width:112px;height:84px;flex:0 0 112px;border-radius:12px;overflow:hidden;
  background:var(--block);
}
.res-thumb img{width:100%;height:100%;object-fit:cover;}
.res-body{flex:1 1 auto;min-width:0;}
.res-body .res-meta{display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap;}
.res-body h3{
  font-size:17px;font-weight:600;line-height:1.5;margin-bottom:6px;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.res-body p{
  font-size:14px;color:var(--t3);line-height:1.7;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.res-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:10px;
  font-size:13.5px;font-weight:600;color:var(--brand);
}
.res-link:hover{color:var(--brand-dark);}

/* ---------- 联系表单 ---------- */
.contact-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-img);
  box-shadow:var(--shadow);padding:34px;
  display:grid;grid-template-columns:0.85fr 1.15fr;gap:40px;
}
.contact-intro h2{font-size:26px;font-weight:600;line-height:1.4;margin-bottom:14px;}
.contact-intro p{color:var(--t2);font-size:15px;line-height:1.85;}
.contact-points{margin-top:22px;display:flex;flex-direction:column;gap:14px;}
.contact-points li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--t2);}
.contact-points .ico{
  width:30px;height:30px;flex:0 0 30px;border-radius:9px;background:var(--teal-soft);
  color:#2A837C;display:flex;align-items:center;justify-content:center;
}
.contact-points .ico svg{width:16px;height:16px;}
.contact-points strong{display:block;color:var(--t1);font-weight:600;font-size:15px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-grid .full{grid-column:1 / -1;}
.form-foot{grid-column:1 / -1;display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:4px;}
.form-status{font-size:14px;color:var(--t3);}
.form-status.ok{color:#2A837C;font-weight:600;}
.form-status.err{color:#C4453B;font-weight:600;}

/* ---------- CTA 条 ---------- */
.cta-band{
  margin-top:88px;
  background:linear-gradient(120deg,#232E77 0%,#2E3A8C 60%,#3C4CA8 100%);
  border-radius:var(--r-img);color:#fff;padding:38px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-60px;width:260px;height:260px;
  background:radial-gradient(circle, rgba(58,167,158,.45), transparent 68%);
  pointer-events:none;
}
.cta-band h3{font-size:23px;font-weight:600;line-height:1.45;position:relative;z-index:2;}
.cta-band p{margin-top:8px;font-size:14.5px;color:rgba(255,255,255,.82);position:relative;z-index:2;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}
.cta-band .btn-primary{background:#fff;color:var(--brand);}
.cta-band .btn-primary:hover{background:#EEF0FB;color:var(--brand-dark);}
.cta-band .btn-outline{border-color:rgba(255,255,255,.55);color:#fff;}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:88px;background:var(--footer);color:#A9B3CC;position:relative;overflow:hidden;}
.site-footer::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 12% 24%, rgba(255,255,255,.35) 0 1px, transparent 1.5px),
                   radial-gradient(circle at 62% 64%, rgba(255,255,255,.28) 0 1px, transparent 1.5px),
                   radial-gradient(circle at 84% 18%, rgba(255,255,255,.3) 0 1px, transparent 1.5px);
  background-size:260px 260px,320px 320px,380px 380px;
  opacity:.14;pointer-events:none;
}
.footer-inner{position:relative;z-index:2;padding:64px 0 40px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:9px;background:linear-gradient(140deg,#3B4AA5,#5A6AD4);}
.footer-brand strong{color:#fff;font-size:16.5px;font-weight:700;letter-spacing:.3px;}
.footer-about{font-size:13.5px;line-height:1.8;color:#8C97B4;max-width:300px;}
.footer-col h4{color:#fff;font-size:14.5px;font-weight:600;margin-bottom:16px;letter-spacing:.3px;}
.footer-col li{margin-bottom:11px;font-size:13.5px;color:#8C97B4;}
.footer-col a{color:#8C97B4;}
.footer-col a:hover{color:var(--teal);}
.footer-bottom{
  position:relative;z-index:2;
  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:#7C87A6;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sidebar-w:76px;}
  .brand{padding:0;justify-content:center;}
  .brand-txt{display:none;}
  .side-nav{padding:16px 10px;align-items:center;}
  .nav-item{justify-content:center;padding:0;width:48px;}
  .nav-item .nav-txt{
    position:absolute;left:60px;top:50%;transform:translateY(-50%);
    background:#1F2743;color:#fff;font-size:13px;font-weight:500;
    padding:6px 12px;border-radius:8px;white-space:nowrap;
    opacity:0;visibility:hidden;transition:opacity .16s ease;z-index:80;
  }
  .nav-item:hover .nav-txt{opacity:1;visibility:visible;}
  .side-card{padding:10px;margin:10px 8px;text-align:center;}
  .side-card h4,.side-card p{display:none;}
  .side-card a{font-size:12px;justify-content:center;}
}
@media (max-width:1023px){
  .sidebar{width:280px;transform:translateX(-100%);box-shadow:0 20px 50px -20px rgba(19,26,46,.5);}
  .sidebar.is-open{transform:translateX(0);}
  .sidebar .brand{padding:0 20px;justify-content:flex-start;}
  .sidebar .brand-txt{display:flex;}
  .sidebar .side-nav{align-items:stretch;padding:16px 12px;}
  .sidebar .nav-item{width:auto;justify-content:flex-start;padding:0 12px;}
  .sidebar .nav-item .nav-txt{position:static;transform:none;opacity:1;visibility:visible;background:none;color:inherit;padding:0;font-size:15px;}
  .side-card{padding:14px;margin:12px;text-align:left;}
  .side-card h4,.side-card p{display:block;}
  .topbar{display:flex;}
  .page{margin-left:0;padding-top:56px;}
  .crumb{padding-top:20px;}
  .cat-hero{padding:38px 28px;}
  .section{padding:56px 0 0;}
  .cta-band{margin-top:56px;padding:30px 26px;border-radius:var(--r-card);}
  .site-footer{margin-top:56px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .contact-card{grid-template-columns:1fr;gap:28px;padding:26px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .crumb{padding-left:20px;padding-right:20px;}
  .hero-wrap{padding:0 20px;}
  .search-bar{grid-template-columns:1fr;}
  .res-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .res-card{flex-direction:row;}
  .hero-facts span+span::before{display:none;}
  .hero-facts{gap:10px;flex-direction:column;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .cat-hero{padding:30px 20px;}
  .cat-hero p{font-size:15px;}
  .hero-actions .btn{width:100%;}
  .hero-actions .link-arrow{width:100%;justify-content:flex-start;}
  .res-card{flex-direction:column;}
  .res-thumb{width:100%;height:150px;flex:0 0 auto;}
  .faq-item summary{padding-right:44px;font-size:15.5px;}
  .faq-item .answer{padding-right:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-actions .btn{width:100%;}
}