/* roulang page: index */
:root{
  --blue:#1A5FD0;
  --blue-h:#134FB0;
  --blue-a:#0F3F8E;
  --blue-l:#EAF1FD;
  --orange:#FF7A2F;
  --green:#12A594;
  --green-l:#E3F6F3;
  --ink:#0E1B33;
  --text:#44506B;
  --muted:#7A8699;
  --line:#E4E9F2;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --footer:#0E1B33;
  --r-card:14px;
  --r-img:10px;
  --sh-1:0 1px 2px rgba(14,27,51,.05);
  --sh-2:0 8px 24px rgba(14,27,51,.07);
  --sh-3:0 16px 40px rgba(14,27,51,.10);
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",Inter,system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}

/* ===== 基础重置 ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--blue);text-decoration:none;background:transparent;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
a:hover{color:var(--orange)}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em;line-height:1.3}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.2;font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700}
h3{font-size:20px;line-height:1.45;font-weight:600}
h4{font-size:17px;line-height:1.5;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
figure{margin:0}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:6px}

/* ===== Foundation 覆盖 ===== */
.grid-container{max-width:1200px;width:100%;margin-left:auto;margin-right:auto;padding-left:32px;padding-right:32px}
.grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px}
.grid-x.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px;min-width:0}
.grid-x.align-middle{align-items:center}
.grid-margin-y{margin-top:0}
.button{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--blue);border:1px solid var(--blue);color:#fff;
  border-radius:999px;font-family:var(--font);font-weight:600;
  padding:12px 26px;box-shadow:var(--sh-1);transition:all .18s ease;
}
.button:hover,.button:focus{background:var(--blue-h);border-color:var(--blue-h);color:#fff;box-shadow:var(--sh-3);transform:translateY(-1px)}
.callout{background:var(--blue-l);border:0;border-radius:var(--r-card);padding:20px;color:var(--ink);margin:0}
input[type="text"],input[type="search"],input[type="email"],textarea,select{
  font-family:var(--font);font-size:15px;color:var(--ink);
  border:1px solid var(--line);border-radius:10px;
  background:#fff;box-shadow:none!important;margin:0;height:auto;
  transition:border-color .18s ease,box-shadow .18s ease;
}
input[type="text"]:focus,input[type="search"]:focus,input[type="email"]:focus,textarea:focus{outline:0;border-color:var(--blue);box-shadow:0 0 0 3px rgba(26,95,208,.12)!important}
select{appearance:none}

/* ===== 通用 ===== */
.section{padding:96px 0;scroll-margin-top:80px}
.section--tight{padding:76px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:40px}
.section-head .eyebrow{display:block;margin-bottom:10px}
.section-desc{margin-top:12px;max-width:640px;font-size:15.5px;color:var(--text)}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:600;line-height:1.4;
  color:var(--blue);background:var(--blue-l);border-radius:6px;
  padding:5px 12px;letter-spacing:.02em;
}
.badge{
  display:inline-block;font-size:12.5px;font-weight:600;line-height:1.4;
  color:var(--blue);background:var(--blue-l);border-radius:6px;padding:4px 10px;
}
.badge--green{color:#0B7A6C;background:var(--green-l)}
.link-more{font-weight:600;color:var(--blue);border-bottom:1.5px solid transparent;padding-bottom:2px;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1.5px}
.link-more:hover{color:var(--orange);text-decoration-color:var(--orange)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 28px;border-radius:999px;
  font-size:15.5px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;transition:all .18s ease;box-shadow:var(--sh-1);
}
.btn-primary{background:var(--blue);color:#fff;border-color:var(--blue)}
.btn-primary:hover,.btn-primary:focus{background:var(--blue-h);border-color:var(--blue-h);color:#fff;box-shadow:var(--sh-3);transform:translateY(-1px)}
.btn-primary:active{background:var(--blue-a);border-color:var(--blue-a);transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:#fff;color:var(--blue);border-color:var(--line);box-shadow:none}
.btn-ghost:hover,.btn-ghost:focus{background:var(--blue-l);border-color:var(--blue);color:var(--blue);box-shadow:var(--sh-1);transform:translateY(-1px)}
.btn-ghost:active{background:#DFEAFB}
.btn-accent{background:var(--orange);border-color:var(--orange);color:#fff}
.btn-accent:hover,.btn-accent:focus{background:#EE6A1E;border-color:#EE6A1E;color:#fff;box-shadow:var(--sh-3);transform:translateY(-1px)}
.btn-sm{min-height:40px;padding:9px 20px;font-size:14.5px}

/* ===== 双层导航 ===== */
.site-header{position:relative;z-index:60}
.topbar{background:#fff;border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;gap:20px;height:72px;position:relative}
.brand{
  display:flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.02em;
  white-space:nowrap;
}
.brand:hover{color:var(--blue)}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:9px;
  background:var(--blue);color:#fff;font-size:13px;font-weight:800;letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text small{font-size:11.5px;font-weight:600;color:var(--muted);letter-spacing:.08em}
.search-wrap{flex:1 1 auto;max-width:420px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:10px;
  background:var(--bg);border:1px solid var(--line);border-radius:999px;
  padding:0 18px;height:44px;transition:border-color .18s ease,background .18s ease;
}
.search-box:focus-within{background:#fff;border-color:var(--blue);box-shadow:0 0 0 3px rgba(26,95,208,.10)}
.search-box svg{flex:0 0 auto;color:var(--muted)}
.search-box input{
  flex:1 1 auto;border:0!important;background:transparent;box-shadow:none!important;
  font-size:14.5px;color:var(--ink);height:42px;padding:0;
}
.search-box input::placeholder{color:var(--muted)}
.search-box input:focus{outline:0}
.topbar-actions{display:flex;align-items:center;gap:18px;margin-left:auto}
.search-wrap + .topbar-actions{margin-left:0}
.link-quiet{font-size:14.5px;font-weight:600;color:var(--text)}
.link-quiet:hover{color:var(--blue)}
.icon-btn{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--text);
}
.icon-btn:hover{border-color:var(--blue);color:var(--blue)}

.channelbar{position:sticky;top:0;z-index:55;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-1)}
.channelbar-inner{position:relative;display:flex;align-items:center;min-height:52px}
.channelbar-inner::after{
  content:"";position:absolute;right:0;top:0;bottom:1px;width:36px;
  background:linear-gradient(90deg,rgba(255,255,255,0),#fff 70%);
  pointer-events:none;
}
.channels{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:6px 30px 6px 0;width:100%}
.channels::-webkit-scrollbar{display:none}
.channel{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;
  border-radius:999px;font-size:14.8px;font-weight:600;color:var(--text);
  white-space:nowrap;position:relative;transition:all .18s ease;
}
.channel:hover{background:var(--blue-l);color:var(--blue)}
.channel.is-active{background:var(--blue-l);color:var(--blue)}
.channel.is-active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:-7px;height:3px;
  background:var(--blue);border-radius:2px;
}

/* ===== Hero ===== */
.hero{
  background:
    radial-gradient(circle at 88% 12%, rgba(26,95,208,.07), transparent 46%),
    var(--bg);
  padding:74px 0 84px;
  scroll-margin-top:80px;
}
.hero-copy{padding-right:8px}
.hero h1{margin:18px 0 0}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:var(--text);max-width:520px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-path{
  display:flex;align-items:center;gap:9px;margin-top:24px;
  font-size:14px;color:var(--muted);
}
.hero-path::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--orange);flex:0 0 auto}
.hero-visual{position:relative}
.hero-figure{
  border-radius:12px;overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-2);aspect-ratio:4/3;background:#fff;
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-note{
  position:absolute;right:24px;bottom:-22px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--sh-2);padding:14px 18px;max-width:260px;
}
.hero-note strong{display:block;font-size:14.5px;color:var(--ink);font-weight:700;margin-bottom:4px}
.hero-note span{display:block;font-size:13px;line-height:1.6;color:var(--muted)}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:52px}
.hero-stats li{
  flex:1 1 180px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;box-shadow:var(--sh-1);
}
.stat-num{display:block;font-size:22px;font-weight:800;color:var(--blue);letter-spacing:-.02em}
.stat-num--accent{color:var(--orange)}
.stat-label{display:block;margin-top:2px;font-size:13.5px;color:var(--muted)}

/* ===== 三步上手 ===== */
.steps{position:relative}
.steps-line{
  position:absolute;top:38px;left:9%;right:9%;height:2px;
  background:linear-gradient(90deg,var(--line),var(--blue-l) 50%,var(--line));
  z-index:0;
}
.step{position:relative;z-index:1;padding:0 8px}
.step-num{
  display:flex;align-items:center;justify-content:center;
  width:76px;height:76px;border-radius:22px;background:#fff;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  font-size:26px;font-weight:800;color:var(--blue);letter-spacing:-.02em;
}
.step-body{margin-top:22px}
.step-body h3{margin-bottom:8px}
.step-body p{font-size:15px;color:var(--text);max-width:300px}
.step-tip{margin-top:14px;display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--muted)}
.step-tip svg{color:var(--green)}

/* ===== 案例证明 ===== */
.case-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-2);transition:box-shadow .2s ease,transform .2s ease;
}
.case-card:hover{box-shadow:var(--sh-3);transform:translateY(-2px)}
.case-media{overflow:hidden;background:var(--blue-l)}
.case-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
.case-card:hover .case-media img{transform:scale(1.03)}
.case-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.case-body h3{font-size:18px}
.case-body h3 a{color:var(--ink)}
.case-body h3 a:hover{color:var(--blue)}
.case-body p{font-size:14.5px;color:var(--text);line-height:1.7}
.case-body .link-more{margin-top:auto;align-self:flex-start;font-size:14.5px}
.case-card--sm .case-body{padding:18px 20px 20px;gap:8px}
.case-card--sm .case-body h3{font-size:16.5px}
.case-card--sm .case-body p{font-size:14px}
.case-stack{display:flex;flex-direction:column;gap:24px;height:100%}
.case-stack .case-card{flex:1 1 auto}

/* ===== 最新信息 ===== */
.news-grid{row-gap:24px}
.news-card{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:22px 24px;display:flex;flex-direction:column;gap:12px;
  position:relative;overflow:hidden;transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.news-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--blue-l);transition:background .2s ease;
}
.news-card:hover{box-shadow:var(--sh-3);transform:translateY(-2px);border-color:#D5E0F5}
.news-card:hover::before{background:var(--blue)}
.news-title{font-size:17.5px;line-height:1.5}
.news-title a{color:var(--ink);display:block}
.news-title a:hover{color:var(--blue)}
.news-sum{
  font-size:14.5px;color:var(--text);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13.5px;color:var(--muted);
}
.news-meta .link-more{font-size:13.5px}
.empty-state{
  background:var(--blue-l);border:1px dashed #B9CFF2;border-radius:var(--r-card);
  padding:40px 24px;text-align:center;
}
.empty-state p{font-size:15px;color:var(--text);margin-bottom:18px}

/* ===== FAQ ===== */
.faq-wrap{max-width:840px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:14px;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:#D5E0F5}
.faq-item.open{border-color:#C6D8F5;box-shadow:var(--sh-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--ink);
  border-left:3px solid transparent;transition:background .18s ease,border-color .18s ease;
}
.faq-q:hover{background:#FAFCFF}
.faq-item.open .faq-q{background:var(--blue-l);border-left-color:var(--blue);color:var(--blue-a)}
.faq-icon{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:8px;background:var(--bg);
  font-size:17px;font-weight:700;line-height:1;color:var(--muted);
}
.faq-icon::before{content:"+"}
.faq-item.open .faq-icon{background:#fff;color:var(--blue)}
.faq-item.open .faq-icon::before{content:"–"}
.faq-a{max-height:0;overflow:hidden;transition:max-height .18s ease}
.faq-item.open .faq-a{max-height:420px}
.faq-a p{padding:4px 22px 22px 25px;font-size:15px;line-height:1.85;color:var(--text)}

/* ===== CTA 带 ===== */
.cta-band{background:var(--footer);color:#fff;padding:64px 0;scroll-margin-top:80px}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px)}
.cta-band p{margin-top:12px;font-size:15.5px;color:#B8C4DA;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.10);border-color:#fff;color:#fff}

/* ===== 页脚 ===== */
.site-footer{background:var(--footer);color:#B8C4DA;padding:72px 0 0;font-size:14.5px}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.01em}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand .brand:hover{color:#fff}
.footer-brand .brand-mark{background:var(--blue)}
.footer-desc{font-size:14px;line-height:1.85;color:#98A6C0;max-width:320px}
.footer-list li{margin-bottom:11px}
.footer-list a{color:#B8C4DA}
.footer-list a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;margin-bottom:11px;color:#B8C4DA}
.footer-contact svg{flex:0 0 auto;margin-top:4px;color:var(--blue)}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:#8593AD;
}

/* ===== 响应式 ===== */
@media screen and (max-width:1024px){
  .grid-container{padding-left:24px;padding-right:24px}
  .section{padding:78px 0}
  .hero{padding:56px 0 70px}
  .hero-copy{padding-right:0;margin-bottom:52px}
  .hero-note{right:16px}
  .steps-line{display:none}
}
@media screen and (max-width:900px){
  .search-wrap{
    display:none;position:absolute;left:20px;right:20px;top:66px;
    max-width:100%;background:#fff;z-index:70;padding:10px;
    border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh-3);
  }
  body.search-open .search-wrap{display:block}
  .search-toggle{display:inline-flex}
  .topbar-inner{gap:12px}
  .brand{font-size:17px}
  .brand-mark{width:30px;height:30px;font-size:12px}
  .topbar-actions{gap:12px}
  .topbar-actions .btn-primary{display:none}
  .cta-band{padding:52px 0}
  .cta-band .cta-actions{margin-top:24px}
  .cta-actions .btn{width:100%}
}
@media screen and (max-width:768px){
  .grid-container{padding-left:20px;padding-right:20px}
  .section{padding:64px 0}
  .section-head{margin-bottom:28px}
  .section-head .link-more{display:inline-block}
  .hero{padding:44px 0 60px}
  .hero-sub{font-size:16px}
  .hero-cta{gap:12px;margin-top:24px}
  .hero-cta .btn{flex:1 1 100%}
  .hero-figure{aspect-ratio:16/10;max-height:240px}
  .hero-note{position:static;margin-top:14px;max-width:none;bottom:auto;right:auto}
  .hero-stats{margin-top:36px;gap:12px}
  .hero-stats li{flex:1 1 100%}
  .step{display:flex;gap:18px;padding:0;margin-bottom:26px}
  .step-num{width:58px;height:58px;border-radius:18px;font-size:21px;flex:0 0 auto}
  .step-body{margin-top:0;padding-left:0}
  .steps-col{position:relative;padding-left:0}
  .steps-col::before{content:"";position:absolute;left:28px;top:10px;bottom:10px;width:2px;background:var(--line)}
  .step{position:relative;z-index:1}
  .case-stack{margin-top:24px;gap:20px}
  .news-grid{row-gap:16px}
  .faq-q{font-size:15.5px;padding:14px 18px}
  .faq-a p{padding:4px 18px 20px 21px;font-size:14.5px}
  .footer-bottom{margin-top:40px}
}
@media screen and (max-width:520px){
  .brand-text small{display:none}
  .brand{font-size:16px}
  .topbar-inner{height:60px}
  .channel{padding:0 13px;font-size:14px}
  .channel.is-active::after{bottom:-6px}
  .news-card{padding:18px 18px}
  .case-body{padding:18px 18px 20px}
  .hero-note{padding:12px 14px}
}

/* roulang page: article */
:root{
  --c-primary:#1A5FD0;
  --c-primary-hover:#134FB0;
  --c-primary-active:#0F3F8E;
  --c-light:#EAF1FD;
  --c-accent:#FF7A2F;
  --c-ok:#12A594;
  --c-title:#0E1B33;
  --c-text:#44506B;
  --c-muted:#7A8699;
  --c-line:#E4E9F2;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-footer:#0E1B33;
  --r-card:14px;
  --r-img:10px;
  --r-sm:10px;
  --r-badge:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,27,51,.05);
  --sh-2:0 8px 24px rgba(14,27,51,.07);
  --sh-3:0 16px 40px rgba(14,27,51,.10);
  --container:1200px;
  --font: "PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",Inter,"Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0 0 .5em;color:var(--c-title);font-weight:700;letter-spacing:-.012em;line-height:1.3}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.2;font-weight:800}
h2{font-size:clamp(24px,2.6vw,32px);font-weight:700}
h3{font-size:20px;line-height:1.45;font-weight:600}
h4{font-size:17px;line-height:1.5;font-weight:600}
p{margin:0 0 1em}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
a:hover{color:var(--c-accent)}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}

/* Foundation 默认样式重置 */
a.button,button.button,.button{
  background:var(--c-primary);color:#fff;border:1px solid transparent;border-radius:var(--r-pill);
  padding:12px 26px;font-weight:600;line-height:1.2;transition:all .18s ease;display:inline-flex;align-items:center;gap:8px;justify-content:center;
}
a.button:hover,button.button:hover,.button:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
a.button:active,button.button:active{background:var(--c-primary-active);transform:translateY(0);box-shadow:var(--sh-1)}
.callout{margin:0;padding:0;border:0;background:transparent;border-radius:var(--r-card)}
.foundation-grid,.grid-container{max-width:var(--container)}

/* 容器 */
.grid-container{
  width:100%;max-width:var(--container);
  margin-left:auto;margin-right:auto;
  padding-left:32px;padding-right:32px;
}
.grid-container.full{max-width:100%}

/* 顶部导航 */
.site-header{position:relative;z-index:30;background:#fff}
.topbar{border-bottom:1px solid var(--c-line);background:#fff}
.topbar-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--c-title)}
.brand:hover{color:var(--c-title)}
.brand-mark{
  width:42px;height:42px;border-radius:12px;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;letter-spacing:.5px;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:700;line-height:1.25;letter-spacing:-.01em}
.brand-text small{font-size:11.5px;font-weight:500;color:var(--c-muted);letter-spacing:0}
.search-wrap{flex:1 1 auto;max-width:420px;margin-left:8px}
.search-box{display:flex;align-items:center;gap:10px;background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-pill);padding:10px 18px;color:var(--c-muted);transition:all .18s ease}
.search-box:focus-within{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(26,95,208,.10)}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14.5px;color:var(--c-title)}
.search-box input::placeholder{color:var(--c-muted)}
.icon-btn{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);color:var(--c-title);align-items:center;justify-content:center;background:#fff}
.icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary)}
.topbar-actions{display:flex;align-items:center;gap:18px;margin-left:auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:600;line-height:1.2;
  border:1px solid transparent;transition:all .18s ease;min-height:44px;padding:12px 26px;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-primary:active{background:var(--c-primary-active);transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-line)}
.btn-ghost:hover{background:var(--c-light);border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px)}
.btn-sm{min-height:40px;padding:9px 20px;font-size:14.5px}
.btn-block{width:100%}
.link-quiet{color:var(--c-text);font-size:14.5px;font-weight:500}
.link-quiet:hover{color:var(--c-primary)}
.text-link{color:var(--c-primary);font-weight:600;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1.5px}
.text-link:hover{color:var(--c-accent)}

/* 频道行 */
.channelbar{background:#fff;border-bottom:1px solid var(--c-line)}
.channelbar-inner{display:flex;align-items:center;min-height:52px}
.channels{
  display:flex;align-items:stretch;gap:6px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  width:100%;padding:4px 0;
}
.channels::-webkit-scrollbar{display:none}
.channel{
  position:relative;flex:0 0 auto;display:inline-flex;align-items:center;
  padding:10px 16px;border-radius:var(--r-pill);color:var(--c-text);font-size:14.5px;font-weight:500;white-space:nowrap;
}
.channel:hover{background:var(--c-light);color:var(--c-primary)}
.channel.is-active{background:var(--c-light);color:var(--c-primary);font-weight:600}
.channel.is-active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;height:3px;border-radius:3px;background:var(--c-primary);
}

/* 内页横幅 */
.page-hero{
  position:relative;background-color:var(--c-light);
  background-image:linear-gradient(90deg,rgba(234,241,253,.96),rgba(234,241,253,.72)),
                   url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:44px 0 40px;border-bottom:1px solid var(--c-line);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-muted);margin-bottom:18px}
.breadcrumb a{color:var(--c-muted)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#B9C3D4}
.breadcrumb .current{color:var(--c-title);font-weight:600;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-hero h1{max-width:900px;margin-bottom:14px}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;font-size:13.5px;color:var(--c-muted)}
.hero-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6D0E0}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-badge);
  background:var(--c-light);color:var(--c-primary);
  font-size:12.5px;line-height:1.4;font-weight:600;letter-spacing:.01em;
}
.badge-ok{background:rgba(18,165,148,.12);color:#0E8577}
.badge-accent{background:rgba(255,122,47,.12);color:#C75715}

/* 文章主布局 */
.article-section{padding:64px 0 24px}
.article-layout{align-items:flex-start}
.article-main{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-2);padding:36px 40px 32px}
.article-body{
  max-width:780px;font-size:16.5px;line-height:1.9;color:var(--c-text);
  overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 18px}
.article-body h2{
  font-size:clamp(22px,2.2vw,28px);margin:40px 0 16px;padding-left:14px;
  border-left:4px solid var(--c-primary);line-height:1.35;
}
.article-body h3{font-size:20px;margin:28px 0 12px;color:var(--c-title)}
.article-body h4{font-size:17px;margin:22px 0 10px;color:var(--c-title)}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 18px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:8px}
.article-body li::marker{color:var(--c-primary)}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1.5px}
.article-body a:hover{color:var(--c-accent)}
.article-body blockquote{
  margin:0 0 20px;padding:16px 20px;background:var(--c-light);
  border-left:3px solid var(--c-primary);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--c-title);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:22px auto;box-shadow:var(--sh-1);height:auto}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:13.5px;color:var(--c-muted);text-align:center;margin-top:8px}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:32px 0}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:0 0 20px;border-radius:var(--r-sm);overflow:hidden}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left}
.article-body th{background:var(--c-light);color:var(--c-title);font-weight:600}
.article-body tr:nth-child(even) td{background:#FBFCFE}
.article-body code{background:var(--c-light);color:var(--c-primary-active);padding:2px 7px;border-radius:6px;font-size:14.5px}
.article-body pre{
  background:var(--c-title);color:#E8EEF9;padding:18px 20px;border-radius:var(--r-sm);
  overflow-x:auto;font-size:14px;line-height:1.7;margin:0 0 20px;
}
.article-body pre code{background:transparent;color:inherit;padding:0}

/* 文章元信息与标签 */
.article-foot{margin-top:36px;padding-top:22px;border-top:1px solid var(--c-line)}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;font-size:13.5px;color:var(--c-muted);margin-bottom:18px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.tag{display:inline-flex;align-items:center;padding:6px 13px;border:1px solid var(--c-line);border-radius:var(--r-pill);font-size:13px;color:var(--c-text);background:#fff}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-light)}

/* 空态 */
.article-empty{
  border:1px dashed #B7CDEE;background:var(--c-light);border-radius:var(--r-card);
  padding:44px 28px;text-align:center;
}
.article-empty h2{font-size:22px;margin-bottom:10px}
.article-empty p{max-width:520px;margin:0 auto 20px;color:var(--c-text)}

/* 侧栏 */
.article-side{display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px 22px 24px}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--c-primary);font-size:15px}
.side-sticky{position:sticky;top:24px}
.toc-list{display:flex;flex-direction:column;gap:2px;border-left:2px solid var(--c-line);padding-left:2px}
.toc-list a{
  display:block;padding:8px 12px;font-size:14px;color:var(--c-text);border-left:2px solid transparent;
  margin-left:-4px;border-radius:0 8px 8px 0;line-height:1.55;transition:all .16s ease;
}
.toc-list a:hover{background:var(--c-light);color:var(--c-primary)}
.toc-list a.is-current{color:var(--c-primary);font-weight:600;border-left-color:var(--c-primary);background:var(--c-light)}
.toc-list a.level-3{padding-left:24px;font-size:13.5px;color:var(--c-muted)}
.toc-empty{font-size:14px;color:var(--c-muted);line-height:1.7}
.side-list li + li{border-top:1px solid var(--c-line)}
.side-list a{display:block;padding:12px 0;font-size:14.5px;color:var(--c-text);line-height:1.6;font-weight:500}
.side-list a:hover{color:var(--c-primary)}
.side-list .side-time{display:block;font-size:12.5px;color:var(--c-muted);font-weight:400;margin-top:4px}

/* 相关推荐 */
.related-block{margin-top:34px}
.related-block .block-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:18px}
.related-block h2{font-size:20px;margin:0}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;height:100%;
}
.card:hover{box-shadow:var(--sh-3);transform:translateY(-2px);border-color:#D5DFF0}
.card-media{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--c-light)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:16px 16px 18px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto}
.card-body h3{font-size:15.5px;margin:0;line-height:1.5;font-weight:600}
.card-body h3 a{color:var(--c-title)}
.card-body h3 a:hover{color:var(--c-primary)}
.card-body p{font-size:13.8px;color:var(--c-muted);margin:0;line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--c-muted);margin-top:auto}
.card-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6D0E0}

/* 继续探索路径 */
.path-section{padding:56px 0 8px}
.section-head{max-width:720px;margin-bottom:28px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-primary);letter-spacing:.04em;margin-bottom:10px}
.section-head h2{margin-bottom:10px}
.section-head p{color:var(--c-muted);margin:0}
.path-line{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;position:relative}
.path-node{position:relative;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:all .2s ease}
.path-node:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.path-node .step-no{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;
  background:var(--c-light);color:var(--c-primary);font-weight:800;font-size:16px;margin-bottom:14px;
}
.path-node h3{font-size:17px;margin-bottom:8px}
.path-node p{font-size:14px;color:var(--c-muted);margin:0 0 14px;line-height:1.7}
.path-track{display:none}

/* CTA 带 */
.cta-band{margin:72px 0 0;background:var(--c-title);color:#fff;padding:52px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-inner h2{color:#fff;margin:0 0 10px;font-size:clamp(22px,2.4vw,30px)}
.cta-inner p{color:#B9C6DC;margin:0;max-width:640px;font-size:15px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}
.cta-actions .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.10);border-color:#fff;color:#fff}
.cta-band .btn-primary{background:var(--c-accent);color:#fff}
.cta-band .btn-primary:hover{background:#E96A21;color:#fff}

/* 页脚 */
.site-footer{background:var(--c-footer);color:#C2CDE0;padding:64px 0 0;margin-top:0}
.site-footer .footer-brand .brand{color:#fff;margin-bottom:16px}
.site-footer .footer-brand .brand-mark{background:var(--c-primary)}
.footer-desc{font-size:14px;line-height:1.85;color:#94A3BE;margin:0;max-width:320px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-list li{margin-bottom:10px}
.footer-list a{color:#94A3BE;font-size:14px}
.footer-list a:hover{color:#fff}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px;font-size:14px;color:#94A3BE;line-height:1.6}
.footer-contact svg{flex:0 0 auto;margin-top:4px;color:var(--c-primary)}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.10);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:#7E8DA8;
}

/* 响应式 */
@media (max-width:1024px){
  .grid-container{padding-left:24px;padding-right:24px}
  .article-main{padding:30px 28px 28px}
  .article-body{font-size:16px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .path-line{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .search-wrap{display:none}
  .icon-btn.search-toggle{display:inline-flex}
  .topbar-inner{gap:12px}
  .search-wrap.is-open{
    display:block;position:absolute;left:0;right:0;top:100%;background:#fff;
    padding:12px 20px;border-bottom:1px solid var(--c-line);max-width:none;margin:0;z-index:40;
  }
  .topbar{position:relative}
  .article-side{flex-direction:column}
  .side-sticky{position:static}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}
@media (max-width:768px){
  .topbar-inner{min-height:60px}
  .brand-text small{display:none}
  .topbar-actions .link-quiet{display:none}
  .grid-container{padding-left:20px;padding-right:20px}
  .page-hero{padding:32px 0 30px}
  .article-section{padding:40px 0 16px}
  .article-main{padding:24px 20px 24px;border-radius:12px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{margin-top:32px}
  .article-body h3{margin-top:24px}
  .related-grid{grid-template-columns:1fr}
  .path-line{grid-template-columns:1fr}
  .cta-band{margin-top:48px;padding:40px 0}
  .site-footer{padding-top:48px}
  .footer-desc{max-width:none}
}
@media (max-width:520px){
  h1{font-size:26px}
  .brand-text{font-size:15px}
  .brand-mark{width:38px;height:38px;border-radius:10px;font-size:13px}
  .search-box{padding:9px 14px}
  .related-block .block-head{flex-direction:column;align-items:flex-start;gap:6px}
  .breadcrumb .current{max-width:100%;white-space:normal}
  .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category1 */
:root{
  --brand:#1A5FD0;
  --brand-hover:#134FB0;
  --brand-active:#0F3F8E;
  --brand-soft:#EAF1FD;
  --accent:#FF7A2F;
  --ok:#12A594;
  --ok-soft:#E6F6F3;
  --ink:#0E1B33;
  --text:#44506B;
  --muted:#7A8699;
  --line:#E4E9F2;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --footer-bg:#0E1B33;
  --r-card:14px;
  --r-img:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,27,51,.05);
  --sh-2:0 8px 24px rgba(14,27,51,.07);
  --sh-3:0 16px 40px rgba(14,27,51,.10);
  --container:1200px;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:120px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",Inter,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--ink);line-height:1.3;font-weight:700;letter-spacing:-.01em;}
p{margin:0 0 0;}
ul,ol,li{list-style:none;margin:0;padding:0;}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;background-color:transparent;transition:color .16s ease;}
a:hover{color:var(--accent);}
button{font-family:inherit;font-size:inherit;line-height:inherit;margin:0;border:0;background:none;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:inherit;margin:0;}
svg{flex:0 0 auto;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

/* ============ Foundation 覆盖 ============ */
.grid-container{
  max-width:var(--container);
  padding-left:32px;
  padding-right:32px;
  margin-left:auto;
  margin-right:auto;
}
.grid-container.full{padding-left:0;padding-right:0;}
.button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin:0;
  border:0;
  background:none;
  font-weight:600;
}
.callout{border:0;background:none;margin:0;padding:0;}
input[type="search"],input[type="text"],input[type="email"]{
  height:auto;
  margin:0;
  border:1px solid var(--line);
  border-radius:10px;
  box-shadow:none;
  background:#fff;
  color:var(--ink);
}
input[type="search"]::-webkit-search-decoration{-webkit-appearance:none;}

/* XY Grid 间距校正（卡片网格 24px） */
.grid-x.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-margin-x > .cell{margin-left:12px;margin-right:12px;}
.grid-x.grid-margin-x > .small-12{width:calc(100% - 24px);}
.grid-x.grid-margin-x > .small-6{width:calc(50% - 24px);}
@media print,screen and (min-width:40em){
  .grid-x.grid-margin-x > .medium-4{width:calc(33.3333% - 24px);}
  .grid-x.grid-margin-x > .medium-5{width:calc(41.6667% - 24px);}
  .grid-x.grid-margin-x > .medium-6{width:calc(50% - 24px);}
  .grid-x.grid-margin-x > .medium-7{width:calc(58.3333% - 24px);}
  .grid-x.grid-margin-x > .medium-8{width:calc(66.6667% - 24px);}
}
@media print,screen and (min-width:64em){
  .grid-x.grid-margin-x > .large-3{width:calc(25% - 24px);}
  .grid-x.grid-margin-x > .large-4{width:calc(33.3333% - 24px);}
  .grid-x.grid-margin-x > .large-5{width:calc(41.6667% - 24px);}
  .grid-x.grid-margin-x > .large-6{width:calc(50% - 24px);}
  .grid-x.grid-margin-x > .large-7{width:calc(58.3333% - 24px);}
  .grid-x.grid-margin-x > .large-8{width:calc(66.6667% - 24px);}
}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 24px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-primary:active{background:var(--brand-active);transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-on-dark{background:#fff;color:var(--ink);}
.btn-on-dark:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

.link-quiet{color:var(--text);font-size:14.5px;font-weight:600;padding:8px 4px;transition:color .16s ease;}
.link-quiet:hover{color:var(--brand);}

.text-link{color:var(--brand);font-weight:600;text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:4px;text-decoration-color:rgba(26,95,208,.35);transition:color .16s ease,text-decoration-color .16s ease;}
.text-link:hover{color:var(--accent);text-decoration-color:rgba(255,122,47,.5);}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:6px;
  font-size:12.5px;
  font-weight:600;
  line-height:1.4;
  background:var(--brand-soft);
  color:var(--brand);
  letter-spacing:0;
}
.badge-ok{background:var(--ok-soft);color:var(--ok);}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--muted);}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  background:var(--brand-soft);
  color:var(--brand);
  font-size:13px;
  font-weight:700;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);}

.section{padding:88px 0;}
.section-white{background:#fff;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;}
.section-head p{margin-top:14px;font-size:15.5px;color:var(--text);}
.section-head--split{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;}

.line-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* ============ 导航 ============ */
.site-header{position:relative;z-index:60;background:#fff;}
.topbar{background:#fff;border-bottom:1px solid var(--line);}
.topbar-inner{
  display:flex;
  align-items:center;
  gap:16px;
  min-height:72px;
  position:relative;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  display:grid;place-items:center;
  font-size:12.5px;font-weight:800;letter-spacing:.06em;
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;font-size:16px;font-weight:700;line-height:1.25;color:var(--ink);}
.brand-text small{font-size:12px;font-weight:400;color:var(--muted);letter-spacing:0;}
.brand:hover .brand-text{color:var(--brand);}

.search-wrap{flex:1 1 220px;max-width:400px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:42px;padding:0 16px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  color:var(--muted);
  transition:border-color .16s ease,box-shadow .16s ease,background-color .16s ease;
}
.search-box:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(26,95,208,.12);}
.search-box input[type="search"]{
  flex:1 1 auto;
  width:100%;
  border:0;
  background:transparent;
  padding:0;
  font-size:14px;
  color:var(--ink);
  outline:none;
}
.search-box input[type="search"]::placeholder{color:var(--muted);}

.icon-btn{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border-radius:12px;
  color:var(--ink);
  border:1px solid var(--line);
  background:#fff;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease;
}
.icon-btn:hover{background:var(--brand-soft);color:var(--brand);border-color:var(--brand-soft);}

.topbar-actions{display:flex;align-items:center;gap:14px;margin-left:auto;flex:0 0 auto;}

.channelbar{
  background:#fff;
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:50;
}
.channelbar-inner{display:flex;align-items:center;min-height:52px;}
.channels{
  display:flex;align-items:center;gap:6px;
  overflow-x:auto;
  -ms-overflow-style:none;scrollbar-width:none;
  padding:8px 0;
  width:100%;
}
.channels::-webkit-scrollbar{display:none;}
.channel{
  position:relative;
  flex:0 0 auto;
  padding:8px 16px;
  border-radius:var(--r-pill);
  font-size:14.5px;
  font-weight:600;
  color:var(--text);
  transition:background-color .16s ease,color .16s ease;
}
.channel:hover{background:var(--brand-soft);color:var(--brand);}
.channel.is-active{background:var(--brand-soft);color:var(--brand);}
.channel.is-active::after{
  content:"";position:absolute;left:50%;bottom:-9px;
  width:22px;height:3px;border-radius:3px;background:var(--brand);
  transform:translateX(-50%);
}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:var(--bg);padding:72px 0 84px;}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.10;
  pointer-events:none;
}
.hero > .grid-container{position:relative;z-index:2;}
.hero h1{font-size:clamp(30px,4.2vw,46px);line-height:1.2;font-weight:800;letter-spacing:-.02em;margin-bottom:18px;}
.hero-sub{font-size:17px;font-weight:600;color:var(--ink);}
.hero-desc{margin-top:12px;max-width:560px;font-size:15.5px;color:var(--text);}
.hero-cta{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;}
.path-hint{
  margin-top:22px;
  display:inline-flex;align-items:center;gap:10px;
  background:var(--brand-soft);
  border-left:3px solid var(--brand);
  border-radius:10px;
  padding:10px 16px;
  font-size:14px;
  color:var(--brand);
  font-weight:600;
}
.hero-media{position:relative;}
.hero-figure{
  position:relative;
  border-radius:12px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
  aspect-ratio:16/10;
  background:#fff;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-note{
  position:absolute;right:18px;bottom:18px;
  display:flex;align-items:center;gap:10px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  padding:12px 16px;
  box-shadow:var(--sh-2);
}
.hero-note .dot{width:8px;height:8px;border-radius:50%;background:var(--ok);flex:0 0 auto;}
.hero-note strong{display:block;font-size:14px;color:var(--ink);font-weight:700;}
.hero-note span{display:block;font-size:12.5px;color:var(--muted);}
.hero-note-text{line-height:1.35;}

/* ============ 准备清单 ============ */
.check-list{display:grid;gap:14px;}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:18px 20px;
  box-shadow:var(--sh-1);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.check-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#d5e2f8;}
.check-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  background:var(--ok-soft);color:var(--ok);
  display:grid;place-items:center;margin-top:2px;
}
.check-body h3{font-size:16px;font-weight:600;margin-bottom:4px;}
.check-body p{font-size:14.5px;color:var(--text);line-height:1.7;}

/* ============ 路径条目 ============ */
.path-list{margin-top:8px;}
.path-item{padding:28px 0;border-bottom:1px solid var(--line);}
.path-item:first-child{padding-top:0;}
.path-item:last-child{border-bottom:0;padding-bottom:0;}
.path-thumb{
  display:block;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/10;
  background:#fff;
  box-shadow:var(--sh-1);
}
.path-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.path-item:hover .path-thumb img{transform:scale(1.03);}
.path-meta{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:13.5px;color:var(--muted);
  margin-bottom:10px;
}
.path-body h3{font-size:20px;line-height:1.45;margin-bottom:10px;}
.path-body h3 a{color:var(--ink);}
.path-body h3 a:hover{color:var(--brand);}
.path-body p{font-size:15px;color:var(--text);margin-bottom:12px;}

/* ============ 节奏时间线 ============ */
.pacing{position:relative;padding-left:38px;}
.pacing::before{
  content:"";position:absolute;left:11px;top:8px;bottom:12px;
  width:2px;background:var(--line);border-radius:2px;
}
.pacing-item{position:relative;padding-bottom:30px;}
.pacing-item:last-child{padding-bottom:0;}
.pacing-dot{
  position:absolute;left:-38px;top:4px;
  width:24px;height:24px;border-radius:50%;
  background:#fff;border:2px solid var(--brand);
  display:grid;place-items:center;
}
.pacing-dot::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--brand);}
.pacing-body h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.pacing-body p{font-size:14.5px;color:var(--text);}
.pacing-time{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:10px;
  font-size:13px;font-weight:600;color:var(--ok);
  background:var(--ok-soft);
  border-radius:6px;
  padding:3px 10px;
}
.pacing-aside{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-1);
}
.pacing-aside h3{font-size:17px;margin-bottom:14px;}
.pacing-aside ul{display:grid;gap:12px;}
.pacing-aside li{display:flex;gap:10px;font-size:14.5px;color:var(--text);line-height:1.7;}
.pacing-aside li::before{
  content:"";flex:0 0 6px;width:6px;height:6px;border-radius:50%;
  background:var(--brand);margin-top:10px;
}

/* ============ FAQ ============ */
.faq-list{max-width:840px;margin:0 auto;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow .18s ease,border-color .18s ease,background-color .18s ease;
}
.faq-item:hover{border-color:#d5e2f8;}
.faq-item.is-open{
  background:#FBFCFF;
  border-color:#c9dbf7;
  box-shadow:inset 3px 0 0 var(--brand),var(--sh-2);
}
.faq-q{
  width:100%;
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:14px 20px;
  text-align:left;
  font-size:15.5px;
  font-weight:600;
  color:var(--ink);
  line-height:1.6;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 18px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform .18s ease,opacity .18s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .18s ease;}
.faq-a p{padding:0 20px 18px;font-size:14.8px;color:var(--text);line-height:1.8;}

/* ============ CTA ============ */
.cta-section{padding:44px 0 88px;background:var(--bg);}
.cta-band{
  background:var(--ink);
  border-radius:18px;
  padding:46px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  box-shadow:var(--sh-2);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,28px);margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.72);font-size:15px;max-width:620px;}
.cta-band .cta-actions{display:flex;gap:14px;flex:0 0 auto;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.72);padding:64px 0 28px;}
.site-footer h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:18px;letter-spacing:0;}
.footer-brand .brand{color:#fff;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand:hover .brand-text{color:#fff;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px;}
.footer-list li{margin-bottom:10px;}
.footer-list a{color:rgba(255,255,255,.72);font-size:14.5px;transition:color .16s ease;}
.footer-list a:hover{color:#fff;}
.footer-contact li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;margin-bottom:12px;color:rgba(255,255,255,.72);line-height:1.6;
}
.footer-contact svg{color:rgba(255,255,255,.45);margin-top:3px;}
.footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13.5px;color:rgba(255,255,255,.46);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .grid-container{padding-left:26px;padding-right:26px;}
  .section{padding:72px 0;}
  .cta-band{padding:40px 34px;}
}

@media screen and (max-width:900px){
  .search-wrap{display:none;}
  .search-toggle{display:inline-flex;}
  .search-wrap.is-open{
    display:flex;
    position:absolute;
    top:64px;left:0;right:0;
    max-width:none;
    margin:0;
    padding:12px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:14px;
    box-shadow:var(--sh-2);
    z-index:90;
  }
  .search-wrap.is-open .search-box{width:100%;height:46px;background:#fff;}
  .hero{padding:56px 0 64px;}
  .hero-media{margin-top:32px;order:2;}
  .hero-copy{order:1;}
  .section-head--split{flex-direction:column;align-items:flex-start;gap:14px;}
  .pacing-aside{margin-top:26px;}
}

@media screen and (max-width:768px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .topbar-inner{min-height:60px;gap:10px;}
  .brand-mark{width:34px;height:34px;font-size:11.5px;}
  .brand-text{font-size:14.5px;}
  .brand-text small{display:none;}
  .topbar-actions .link-quiet{display:none;}
  .section{padding:60px 0;}
  .section-head{margin-bottom:32px;}
  .hero-figure{aspect-ratio:auto;height:220px;}
  .hero-note{right:12px;bottom:12px;padding:10px 14px;}
  .path-item{padding:22px 0;}
  .path-body{margin-top:16px;}
  .cta-section{padding:20px 0 64px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;gap:22px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{width:100%;}
  .site-footer{padding:52px 0 24px;}
  .footer-brand{margin-bottom:8px;}
}

@media screen and (max-width:520px){
  .section{padding:48px 0;}
  .hero{padding:48px 0 56px;}
  .hero h1{font-size:clamp(26px,7.4vw,32px);}
  .hero-cta .btn{width:100%;}
  .path-hint{display:flex;width:100%;}
  .faq-q{padding:14px 16px;font-size:15px;}
  .faq-a p{padding:0 16px 16px;}
  .check-item{padding:16px;}
  .pacing{padding-left:32px;}
  .pacing-dot{left:-32px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1A5FD0;
  --c-primary-hover:#134FB0;
  --c-primary-active:#0F3F8E;
  --c-blue-soft:#EAF1FD;
  --c-accent:#FF7A2F;
  --c-state:#12A594;
  --c-title:#0E1B33;
  --c-text:#44506B;
  --c-muted:#7A8699;
  --c-line:#E4E9F2;
  --c-page:#F6F8FC;
  --c-card:#FFFFFF;
  --c-footer:#0E1B33;
  --r-card:14px;
  --r-img:10px;
  --r-input:10px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(14,27,51,.05);
  --sh-2:0 8px 24px rgba(14,27,51,.07);
  --sh-3:0 16px 40px rgba(14,27,51,.10);
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-page);
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{margin:0;padding:0;color:var(--c-title);font-family:var(--font-cn);}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.2;font-weight:800;letter-spacing:-0.02em;}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;letter-spacing:-0.015em;}
h3{font-size:20px;line-height:1.45;font-weight:600;letter-spacing:-0.01em;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover,a:focus{color:var(--c-accent);}
ul{margin:0;padding:0;list-style:none;}
img{max-width:100%;height:auto;display:block;border:0;max-width:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
  border-radius:4px;
}
/* Foundation 覆盖 */
.button,a.button,button.button{
  background:var(--c-primary);
  color:#fff;
  border:1px solid transparent;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  padding:12px 26px;
  margin:0;
  line-height:1.4;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.button:hover,a.button:hover,button.button:hover{
  background:var(--c-primary-hover);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-3);
}
.button:active,a.button:active{background:var(--c-primary-active);transform:translateY(0);}
.callout{
  margin:0;padding:20px 22px;border:1px solid var(--c-line);
  border-radius:var(--r-card);background:var(--c-card);color:var(--c-text);
}
.grid-container{max-width:1200px;padding-left:32px;padding-right:32px;}
.grid-x{display:flex;flex-wrap:wrap;}
[class*="cell"]{min-width:0;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1.4;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover,.btn-primary:focus{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-primary:active{background:var(--c-primary-active);transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-line);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--c-blue-soft);border-color:var(--c-primary);color:var(--c-primary);}
.btn-sm{min-height:40px;padding:9px 20px;font-size:14px;}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover,.btn-accent:focus{background:#e96a20;color:#fff;}
.btn-block{width:100%;}
.link-quiet{
  color:var(--c-text);font-size:14.5px;font-weight:600;padding:8px 4px;display:inline-flex;align-items:center;
}
.link-quiet:hover{color:var(--c-primary);}
.link-underline{
  color:var(--c-primary);font-weight:600;
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1.5px;
}
.link-underline:hover{color:var(--c-accent);}

/* ============ Header ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;box-shadow:var(--sh-1);}
.topbar{border-bottom:1px solid var(--c-line);background:#fff;}
.topbar-inner{
  display:flex;align-items:center;gap:20px;height:72px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--c-title);flex:0 0 auto;}
.brand:hover{color:var(--c-title);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;flex:0 0 44px;border-radius:12px;
  background:var(--c-primary);color:#fff;font-weight:800;font-size:15px;letter-spacing:.02em;
}
.brand-text{
  font-size:16.5px;font-weight:700;line-height:1.2;color:var(--c-title);
  display:flex;flex-direction:column;letter-spacing:-0.01em;
}
.brand-text small{font-size:12px;font-weight:500;color:var(--c-muted);letter-spacing:0;}
.search-wrap{flex:1 1 auto;max-width:420px;margin-left:12px;}
.search-box{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 18px;
  background:var(--c-page);border:1px solid var(--c-line);border-radius:999px;
  color:var(--c-muted);transition:border-color .18s ease,background .18s ease,box-shadow .18s ease;
}
.search-box:focus-within{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(26,95,208,.10);}
.search-box input[type="search"]{
  flex:1;border:0;background:transparent;height:100%;margin:0;
  font-size:14.5px;color:var(--c-text);outline:none;box-shadow:none;
}
.search-box input[type="search"]::placeholder{color:var(--c-muted);}
.icon-btn{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;flex:0 0 44px;border-radius:12px;
  background:#fff;border:1px solid var(--c-line);color:var(--c-title);
  transition:background .18s ease,border-color .18s ease;
}
.icon-btn:hover{background:var(--c-blue-soft);border-color:var(--c-primary);color:var(--c-primary);}
.topbar-actions{display:flex;align-items:center;gap:14px;margin-left:auto;flex:0 0 auto;}

.channelbar{background:#fff;border-bottom:1px solid var(--c-line);}
.channelbar-inner{position:relative;}
.channels{
  display:flex;align-items:center;gap:8px;height:52px;
  overflow-x:auto;overflow-y:hidden;
  -ms-overflow-style:none;scrollbar-width:none;
  scroll-behavior:smooth;
}
.channels::-webkit-scrollbar{display:none;}
.channel{
  display:inline-flex;align-items:center;height:36px;padding:0 18px;
  border-radius:999px;font-size:14.5px;font-weight:600;color:var(--c-text);
  white-space:nowrap;position:relative;
  transition:background .18s ease,color .18s ease;
}
.channel:hover{background:var(--c-blue-soft);color:var(--c-primary);}
.channel.is-active{background:var(--c-blue-soft);color:var(--c-primary);}
.channel.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:-8px;width:24px;height:3px;border-radius:2px;background:var(--c-primary);
}

/* ============ Hero ============ */
.page-hero{
  position:relative;background:#0E1B33;color:#fff;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(14,27,51,.92) 0%,rgba(14,27,51,.78) 45%,rgba(14,27,51,.52) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.page-hero .grid-container{position:relative;z-index:2;}
.hero-inner{padding:76px 0 68px;max-width:840px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
  color:#fff;font-size:12.5px;font-weight:600;letter-spacing:.02em;
  padding:6px 14px;border-radius:999px;margin-bottom:22px;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--c-state);display:inline-block;}
.page-hero h1{color:#fff;max-width:15em;}
.hero-sub{
  color:rgba(255,255,255,.82);font-size:17px;line-height:1.8;
  margin:20px 0 30px;max-width:640px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.page-hero .btn-primary{background:var(--c-accent);}
.page-hero .btn-primary:hover,.page-hero .btn-primary:focus{background:#e96a20;}
.page-hero .btn-ghost{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.36);color:#fff;}
.page-hero .btn-ghost:hover,.page-hero .btn-ghost:focus{background:rgba(255,255,255,.18);border-color:#fff;color:#fff;}
.hero-crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.66);margin-bottom:20px;
}
.hero-crumbs a{color:rgba(255,255,255,.82);font-weight:600;}
.hero-crumbs a:hover{color:#fff;}
.hero-crumbs span.sep{opacity:.5;}

/* ============ Section base ============ */
.section{padding:92px 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:36px;}
.section-head.center{text-align:center;max-width:720px;margin-left:auto;margin-right:auto;}
.section-head h2{margin-bottom:12px;}
.section-lead{color:var(--c-muted);font-size:15.5px;line-height:1.8;max-width:760px;}
.section-head.center .section-lead{margin:0 auto;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;color:var(--c-primary);
  background:var(--c-blue-soft);padding:5px 12px;border-radius:var(--r-badge);
  margin-bottom:14px;letter-spacing:.02em;
}
.section-head.row-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;
}

/* ============ Filter pills ============ */
.filter-panel{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:18px 22px;box-shadow:var(--sh-1);margin-bottom:28px;
}
.filter-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.filter-label{font-size:13px;font-weight:600;color:var(--c-muted);margin-right:6px;}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  min-height:42px;padding:0 18px;border-radius:999px;
  background:var(--c-page);border:1px solid var(--c-line);color:var(--c-text);
  font-size:14px;font-weight:600;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.pill:hover{background:var(--c-blue-soft);border-color:var(--c-primary);color:var(--c-primary);}
.pill.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.pill-count{
  font-size:12px;font-weight:600;background:rgba(255,255,255,.22);
  padding:1px 8px;border-radius:99px;
}
.pill.is-active .pill-count{background:rgba(255,255,255,.24);}

/* ============ Entry cards (two column grid) ============ */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.entry-card{
  display:flex;flex-direction:column;background:var(--c-card);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-2);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3);border-color:#d5ddec;}
.entry-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--c-blue-soft);}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.entry-card:hover .entry-thumb img{transform:scale(1.03);}
.entry-thumb .badge{
  position:absolute;top:14px;left:14px;z-index:2;
  background:#fff;color:var(--c-primary);
  font-size:12.5px;font-weight:600;line-height:1.4;
  padding:5px 12px;border-radius:var(--r-badge);box-shadow:var(--sh-1);border:1px solid var(--c-line);
}
.entry-body{padding:22px 24px 20px;display:flex;flex-direction:column;flex:1 1 auto;gap:12px;}
.entry-body h3{font-size:18.5px;}
.entry-body p{
  color:var(--c-text);font-size:14.8px;line-height:1.72;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-meta{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding-top:14px;margin-top:auto;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-muted);
}
.entry-meta .meta-left{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.tag-soft{
  display:inline-flex;align-items:center;
  font-size:12.5px;font-weight:600;line-height:1.4;
  background:var(--c-blue-soft);color:var(--c-primary);
  padding:4px 10px;border-radius:var(--r-badge);
}
.tag-state{background:rgba(18,165,148,.12);color:#0E8577;}
.card-link{
  color:var(--c-primary);font-weight:600;font-size:13.5px;
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1.5px;
}
.card-link:hover{color:var(--c-accent);}
.empty-tip{
  display:none;margin-top:24px;padding:34px 24px;text-align:center;
  background:var(--c-blue-soft);border:1px dashed #b9cdef;border-radius:var(--r-card);
}
.empty-tip p{color:var(--c-text);font-size:15px;margin-bottom:16px;}

/* ============ Route / steps ============ */
.route-wrap{position:relative;}
.route-line{
  position:absolute;top:34px;left:8%;right:8%;height:2px;
  background:repeating-linear-gradient(90deg,var(--c-line) 0 8px,transparent 8px 16px);
  z-index:0;
}
.route-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;position:relative;z-index:1;}
.route-item{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.route-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.route-num{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--c-blue-soft);color:var(--c-primary);font-weight:800;font-size:16px;
  margin-bottom:16px;
}
.route-item h3{font-size:17.5px;margin-bottom:8px;}
.route-item p{font-size:14.5px;color:var(--c-text);line-height:1.72;margin:0;}

/* ============ Checklist ============ */
.check-panel{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px 30px;box-shadow:var(--sh-2);
}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-bottom:1px solid var(--c-line);font-size:15px;line-height:1.75;
}
.check-list li:first-child{padding-top:0;}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list svg{flex:0 0 20px;margin-top:4px;color:var(--c-state);}
.check-list strong{color:var(--c-title);}

/* ============ FAQ ============ */
.faq-wrap{max-width:840px;margin:0 auto;}
.faq-item{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item[open]{
  border-left:3px solid var(--c-primary);
  background:linear-gradient(180deg,var(--c-blue-soft) 0%,#fff 42%);
  box-shadow:var(--sh-2);
}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;padding:16px 22px;
  font-size:16px;font-weight:600;color:var(--c-title);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-primary);}
.faq-mark{
  position:relative;width:20px;height:20px;flex:0 0 20px;
}
.faq-mark::before,.faq-mark::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
  transition:transform .18s ease,opacity .18s ease;
}
.faq-mark::before{left:0;top:9px;width:20px;height:2px;}
.faq-mark::after{left:9px;top:0;width:2px;height:20px;}
.faq-item[open] .faq-mark::after{transform:scaleY(0);opacity:0;}
.faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--c-text);}
.faq-answer p{margin-bottom:12px;}
.faq-answer p:last-child{margin-bottom:0;}

/* ============ CTA band ============ */
.cta-band{
  background:var(--c-footer);color:#fff;border-radius:var(--r-card);
  padding:44px 46px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-2);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,28px);margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.74);font-size:15px;margin:0;max-width:620px;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}
.cta-band .btn-primary{background:var(--c-accent);}
.cta-band .btn-primary:hover,.cta-band .btn-primary:focus{background:#e96a20;}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.36);color:#fff;}
.cta-band .btn-ghost:hover,.cta-band .btn-ghost:focus{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;}

/* ============ Footer ============ */
.site-footer{background:var(--c-footer);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0;}
.site-footer .brand{margin-bottom:18px;}
.site-footer .brand-text{color:#fff;}
.site-footer .brand-mark{background:var(--c-primary);}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px;}
.footer-list li{margin-bottom:12px;}
.footer-list a{color:rgba(255,255,255,.72);font-size:14.5px;}
.footer-list a:hover{color:#fff;}
.footer-contact li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14.5px;color:rgba(255,255,255,.72);margin-bottom:14px;line-height:1.7;
}
.footer-contact svg{flex:0 0 16px;margin-top:5px;color:rgba(255,255,255,.5);}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.5);
}

/* ============ Responsive ============ */
@media screen and (max-width:1024px){
  .grid-container{padding-left:24px;padding-right:24px;}
  .section{padding:72px 0;}
  .card-grid{gap:20px;}
  .route-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .route-line{display:none;}
}
@media screen and (max-width:900px){
  .search-wrap{display:none;}
  .search-wrap.is-open{
    display:flex;position:absolute;left:20px;right:20px;top:64px;z-index:70;
    max-width:none;margin:0;background:#fff;padding:12px;border-radius:var(--r-card);
    box-shadow:var(--sh-3);border:1px solid var(--c-line);
  }
  .topbar-inner{position:relative;}
  .icon-btn.search-toggle{display:inline-flex;}
  .topbar-actions .link-quiet{display:none;}
  .page-hero .hero-inner{padding:56px 0 52px;}
  .cta-band{flex-direction:column;align-items:flex-start;gap:24px;padding:36px 30px;}
  .cta-band .cta-actions{width:100%;}
}
@media screen and (max-width:768px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .topbar-inner{height:60px;gap:12px;}
  .brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:10px;font-size:13px;}
  .brand-text{font-size:15px;}
  .brand-text small{display:none;}
  .channels{height:48px;}
  .channel{height:34px;padding:0 15px;font-size:14px;}
  .card-grid{grid-template-columns:minmax(0,1fr);gap:16px;}
  .route-grid{grid-template-columns:minmax(0,1fr);gap:16px;}
  .filter-panel{padding:16px;}
  .pill{min-height:40px;padding:0 15px;font-size:13.5px;}
  .check-panel{padding:22px 20px;}
  .faq-item summary{padding:14px 18px;font-size:15.2px;gap:14px;}
  .faq-answer{padding:0 18px 18px;font-size:14.6px;}
  .cta-band{padding:30px 22px;border-radius:var(--r-card);}
  .cta-band .btn,.cta-band .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .site-footer{padding-top:52px;}
}
@media screen and (max-width:520px){
  h1{font-size:28px;}
  h2{font-size:23px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions{flex-direction:column;align-items:stretch;width:100%;}
  .hero-actions .btn{width:100%;}
  .entry-body{padding:18px 18px 16px;}
  .section-head.row-head{flex-direction:column;align-items:flex-start;gap:12px;}
}
@media screen and (max-width:480px){
  .grid-container{padding-left:16px;padding-right:16px;}
  .section{padding:48px 0;}
  .search-wrap{left:16px;right:16px;}
  .entry-thumb .badge{top:10px;left:10px;font-size:12px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#1A5FD0;
  --c-primary-h:#134FB0;
  --c-primary-a:#0F3F8E;
  --c-blue-soft:#EAF1FD;
  --c-accent:#FF7A2F;
  --c-green:#12A594;
  --c-green-soft:#E4F6F3;
  --c-title:#0E1B33;
  --c-text:#44506B;
  --c-muted:#7A8699;
  --c-line:#E4E9F2;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-footer:#0E1B33;

  --r-card:14px;
  --r-img:10px;
  --r-pill:999px;
  --r-btn:10px;
  --r-input:10px;
  --r-badge:6px;

  --sh-1:0 1px 2px rgba(14,27,51,.05);
  --sh-2:0 8px 24px rgba(14,27,51,.07);
  --sh-3:0 16px 40px rgba(14,27,51,.10);

  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC","Inter","Helvetica Neue",Arial,sans-serif;
  --sp-section:96px;
}

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

html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}

/* ---------- Foundation 覆盖重置 ---------- */
h1,h2,h3,h4,h5,h6{
  margin:0 0 12px;
  color:var(--c-title);
  font-family:var(--font-cn);
  letter-spacing:-0.015em;
  font-weight:700;
  line-height:1.3;
}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.2;font-weight:800;}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;}
h3{font-size:20px;line-height:1.45;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{margin:0 0 16px;line-height:1.75;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
a:hover,a:focus{color:var(--c-accent);}
ul,ol{margin:0 0 16px;padding:0;list-style:none;}
li{margin:0;}
img{max-width:100%;height:auto;display:block;}
button{font-family:inherit;}
input[type="search"],input[type="text"],input[type="email"],textarea{
  margin:0;
  border:1px solid var(--c-line);
  border-radius:var(--r-input);
  box-shadow:none;
  font-family:inherit;
  font-size:15px;
  color:var(--c-title);
  background:#fff;
  height:auto;
  appearance:none;
}
input[type="search"]:focus,input[type="text"]:focus,input[type="email"]:focus,textarea:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(26,95,208,.12);
}
.button,.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border:1px solid transparent;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;text-decoration:none;
  background:var(--c-primary);color:#fff;
  box-shadow:var(--sh-1);
  transition:transform .16s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
}
.button:hover,.btn:hover{background:var(--c-primary-h);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.button:active,.btn:active{background:var(--c-primary-a);transform:translateY(0);box-shadow:var(--sh-1);}
.callout{margin:0;padding:0;border:0;background:transparent;border-radius:0;}
.grid-container{max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px;width:100%;}
.grid-x{margin-left:-12px;margin-right:-12px;}
.grid-x>.cell{padding-left:12px;padding-right:12px;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}

/* ---------- 通用组件 ---------- */
.btn-sm{min-height:38px;padding:0 18px;font-size:14px;}
.btn-ghost{
  background:#fff;color:var(--c-primary);border-color:var(--c-line);box-shadow:var(--sh-1);
}
.btn-ghost:hover{background:var(--c-blue-soft);color:var(--c-primary-h);border-color:var(--c-primary);}
.btn-ghost:active{background:var(--c-blue-soft);color:var(--c-primary-a);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}

.link-quiet{
  color:var(--c-text);font-size:14px;font-weight:600;min-height:44px;display:inline-flex;align-items:center;
}
.link-quiet:hover{color:var(--c-primary);}
.link-more{
  color:var(--c-primary);font-weight:600;font-size:14px;
  border-bottom:1.5px solid var(--c-primary);padding-bottom:2px;
}
.link-more:hover{color:var(--c-accent);border-color:var(--c-accent);}

.badge{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:var(--r-badge);
  background:var(--c-blue-soft);color:var(--c-primary);
  font-size:12.5px;font-weight:600;line-height:1.4;letter-spacing:0;
}
.badge-green{background:var(--c-green-soft);color:#0B7F73;}
.badge-plain{background:#F1F4F9;color:var(--c-muted);}

.sec{padding:var(--sp-section) 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.sec-head p{margin:8px 0 0;color:var(--c-muted);font-size:15px;max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--c-primary);display:block;border-radius:2px;}

/* ---------- 顶部导航 ---------- */
.site-header{position:relative;z-index:60;background:#fff;}
.topbar{border-bottom:1px solid var(--c-line);background:#fff;}
.topbar-inner{
  display:flex;align-items:center;gap:24px;
  min-height:72px;padding-top:12px;padding-bottom:12px;
}
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:var(--c-title);flex:0 0 auto;}
.brand-mark{
  width:42px;height:42px;border-radius:12px;flex:0 0 auto;
  background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:800;line-height:1.2;color:var(--c-title);}
.brand-text small{font-size:11.5px;font-weight:500;color:var(--c-muted);letter-spacing:0;margin-top:3px;}
.brand:hover .brand-text{color:var(--c-primary);}

.search-wrap{flex:1 1 auto;max-width:420px;margin-left:8px;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:44px;padding:0 16px;
  background:#F4F7FC;border:1px solid var(--c-line);border-radius:var(--r-pill);
  color:var(--c-muted);
  transition:border-color .18s ease,background-color .18s ease;
}
.search-box:focus-within{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(26,95,208,.10);}
.search-box input{
  flex:1;border:0!important;background:transparent!important;box-shadow:none!important;
  font-size:14.5px;color:var(--c-title);padding:0;height:auto;
}
.search-box input::placeholder{color:var(--c-muted);}
.search-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);background:#fff;color:var(--c-title);align-items:center;justify-content:center;}
.search-toggle:hover{background:var(--c-blue-soft);color:var(--c-primary);}
.icon-btn{cursor:pointer;}

.topbar-actions{display:flex;align-items:center;gap:16px;margin-left:auto;flex:0 0 auto;}

.channelbar{
  position:sticky;top:0;z-index:55;
  background:#fff;border-bottom:1px solid var(--c-line);
  box-shadow:0 2px 8px rgba(14,27,51,.03);
}
.channelbar-inner{
  display:flex;align-items:center;gap:8px;
  min-height:52px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channelbar-inner::-webkit-scrollbar{display:none;}
.channels{display:flex;align-items:center;gap:6px;flex-wrap:nowrap;}
.channel{
  position:relative;
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 16px;
  border-radius:10px;
  font-size:14.5px;font-weight:600;color:var(--c-text);
  white-space:nowrap;
}
.channel:hover{background:var(--c-blue-soft);color:var(--c-primary);}
.channel.is-active{background:var(--c-blue-soft);color:var(--c-primary);}
.channel.is-active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:3px;border-radius:3px;background:var(--c-primary);
}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  background:#fff;
  border-bottom:1px solid var(--c-line);
  padding:56px 0 64px;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--c-muted);margin-bottom:22px;flex-wrap:wrap;}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb span.sep{color:#C3CBD9;}
.crumb strong{color:var(--c-title);font-weight:600;}

.cat-hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.cat-hero h1{margin-bottom:16px;}
.cat-hero-sub{font-size:17px;color:var(--c-text);max-width:560px;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px;}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;}
.hero-meta{display:flex;gap:28px;margin-top:34px;flex-wrap:wrap;}
.hero-meta .m{display:flex;flex-direction:column;}
.hero-meta .m b{font-size:20px;color:var(--c-title);font-weight:800;letter-spacing:-0.01em;}
.hero-meta .m span{font-size:13px;color:var(--c-muted);margin-top:2px;}

.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:12px;border:1px solid var(--c-line);box-shadow:var(--sh-2);
}
.hero-note{
  position:absolute;right:-8px;bottom:-18px;
  width:min(280px,88%);
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-2);padding:16px 18px;
}
.hero-note b{display:block;font-size:14px;color:var(--c-title);margin-bottom:4px;}
.hero-note p{margin:0;font-size:13px;color:var(--c-muted);line-height:1.6;}

/* ---------- 分组目录 + 条目 ---------- */
.layout-wrap{display:grid;grid-template-columns:250px 1fr;gap:44px;align-items:start;}
.toc{
  position:sticky;top:76px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:20px;
}
.toc-title{font-size:12.5px;font-weight:700;color:var(--c-muted);letter-spacing:.06em;margin:0 0 14px;}
.toc-list{display:flex;flex-direction:column;gap:4px;}
.toc-list a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:10px;
  font-size:14.5px;font-weight:600;color:var(--c-text);
  border-left:3px solid transparent;
}
.toc-list a:hover{background:var(--c-blue-soft);color:var(--c-primary);}
.toc-list a.is-current{background:var(--c-blue-soft);color:var(--c-primary);border-left-color:var(--c-primary);}
.toc-list a i{
  font-style:normal;font-size:12px;color:var(--c-muted);font-weight:700;
}
.toc-list a.is-current i{color:var(--c-primary);}
.toc-foot{margin-top:16px;padding-top:16px;border-top:1px solid var(--c-line);}
.toc-foot p{margin:0 0 10px;font-size:13px;color:var(--c-muted);line-height:1.65;}

.toc-group{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px 26px 10px;
  margin-bottom:24px;
  scroll-margin-top:118px;
}
.toc-group-head{display:flex;align-items:center;gap:14px;margin-bottom:6px;}
.toc-group-head .num{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:var(--c-blue-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;
}
.toc-group-head h2{margin:0;font-size:21px;}
.toc-group-intro{margin:10px 0 18px;font-size:14.5px;color:var(--c-muted);max-width:720px;}

.entry{
  display:flex;gap:18px;
  padding:18px 0;
  border-top:1px solid var(--c-line);
}
.entry-thumb{
  flex:0 0 auto;width:104px;height:78px;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--c-line);background:#F4F7FC;
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.entry:hover .entry-thumb img{transform:scale(1.03);}
.entry-body{flex:1 1 auto;min-width:0;}
.entry-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:6px;}
.entry-body h3{margin:0 0 6px;font-size:17px;line-height:1.5;}
.entry-body h3 a{color:var(--c-title);}
.entry-body h3 a:hover{color:var(--c-primary);}
.entry-body p{margin:0 0 10px;font-size:14.5px;color:var(--c-text);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.entry-meta{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--c-muted);flex-wrap:wrap;}
.entry-meta a{font-weight:600;}

/* ---------- 更新节奏 ---------- */
.rhythm{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.rhythm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rhythm-item{
  border:1px solid var(--c-line);border-radius:var(--r-card);background:#fff;
  box-shadow:var(--sh-1);padding:24px;position:relative;overflow:hidden;
  transition:box-shadow .2s ease,transform .2s ease;
}
.rhythm-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.rhythm-item span.dot{
  display:inline-block;width:10px;height:10px;border-radius:999px;background:var(--c-primary);margin-bottom:14px;
}
.rhythm-item.g span.dot{background:var(--c-green);}
.rhythm-item h3{font-size:17px;margin-bottom:8px;}
.rhythm-item p{margin:0;font-size:14.5px;color:var(--c-text);}
.rhythm-strip{
  margin-top:28px;background:var(--c-blue-soft);border-radius:var(--r-card);
  padding:20px 24px;display:flex;align-items:center;gap:18px;flex-wrap:wrap;
}
.rhythm-strip p{margin:0;font-size:14.5px;color:var(--c-primary);font-weight:600;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:840px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);margin-bottom:12px;overflow:hidden;
  transition:border-color .18s ease;
}
.faq-item.is-open{border-left:3px solid var(--c-primary);}
.faq-q{
  width:100%;min-height:56px;padding:16px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-title);line-height:1.5;
}
.faq-q:hover{color:var(--c-primary);}
.faq-q .sign{
  flex:0 0 auto;width:24px;height:24px;border-radius:8px;
  background:var(--c-blue-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;transition:transform .18s ease;
}
.faq-item.is-open .faq-q .sign{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .18s ease;}
.faq-a-inner{padding:0 20px 20px;font-size:14.5px;color:var(--c-text);line-height:1.8;}
.faq-item.is-open{background:#fff;}
.faq-item.is-open .faq-a-inner{background:linear-gradient(180deg,rgba(234,241,253,.55),rgba(234,241,253,0));}

/* ---------- CTA 条 ---------- */
.cta-band{padding:0 0 var(--sp-section);}
.cta-inner{
  background:var(--c-blue-soft);
  border:1px solid #D6E3FA;
  border-radius:18px;
  padding:40px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-inner h2{margin:0 0 8px;font-size:24px;}
.cta-inner p{margin:0;font-size:15px;color:#2A4676;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-footer);color:#C7D1E4;padding:72px 0 28px;}
.site-footer h4{color:#fff;font-size:15px;margin:0 0 16px;letter-spacing:0;}
.site-footer a{color:#C7D1E4;}
.site-footer a:hover{color:#fff;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;font-size:16px;}
.footer-brand .brand:hover .brand-text{color:#9FC1FF;}
.footer-desc{font-size:13.5px;line-height:1.8;color:#8D9BB5;margin:0;}
.footer-list li{margin-bottom:10px;}
.footer-list a{font-size:14px;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;margin-bottom:12px;color:#A9B6CD;}
.footer-contact svg{flex:0 0 auto;margin-top:4px;color:#5D8CE0;}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C8AA5;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sp-section:72px;}
  .layout-wrap{grid-template-columns:1fr;gap:24px;}
  .toc{position:static;padding:16px;}
  .toc-list{flex-direction:row;overflow-x:auto;gap:8px;scrollbar-width:none;padding-bottom:4px;}
  .toc-list::-webkit-scrollbar{display:none;}
  .toc-list a{white-space:nowrap;border-left:0;border-bottom:3px solid transparent;border-radius:10px;}
  .toc-list a.is-current{border-left:0;border-bottom-color:var(--c-primary);}
  .toc-foot{margin-top:12px;}
  .cat-hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-visual img{aspect-ratio:16/9;}
  .hero-note{position:static;width:100%;margin-top:16px;}
  .rhythm-grid{grid-template-columns:1fr;}
}
@media (max-width:900px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .grid-x{margin-left:-8px;margin-right:-8px;}
  .grid-x>.cell{padding-left:8px;padding-right:8px;}
  .search-wrap{
    display:none;position:absolute;left:20px;right:20px;top:70px;z-index:70;max-width:none;margin:0;
  }
  .search-wrap .search-box{background:#fff;box-shadow:var(--sh-2);}
  .site-header.search-open .search-wrap{display:block;}
  .search-toggle{display:inline-flex;margin-left:auto;}
  .topbar-actions{margin-left:12px;}
  .topbar-actions .link-quiet{display:none;}
  .topbar-inner{min-height:64px;gap:14px;}
  .cat-hero{padding:36px 0 44px;}
  .cat-hero-sub{font-size:15.5px;}
  .hero-cta .btn{flex:1 1 100%;}
  .cta-inner{padding:28px 22px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .sec{padding:64px 0;}
}
@media (max-width:520px){
  :root{--sp-section:52px;}
  h1{font-size:26px;}
  h2{font-size:22px;}
  .brand-text{font-size:15.5px;}
  .brand-text small{font-size:11px;}
  .brand-mark{width:38px;height:38px;border-radius:10px;font-size:13px;}
  .topbar-actions .btn-primary{display:none;}
  .entry{flex-direction:column;gap:12px;}
  .entry-thumb{width:100%;height:150px;}
  .toc-group{padding:20px 18px 6px;}
  .toc-group-head h2{font-size:18px;}
  .hero-meta{gap:20px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .sec-head{margin-bottom:24px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
}

/* roulang page: category4 */
:root{
  --brand:#1A5FD0;
  --brand-hover:#134FB0;
  --brand-active:#0F3F8E;
  --blue-soft:#EAF1FD;
  --accent:#FF7A2F;
  --green:#12A594;
  --green-soft:#E4F6F3;
  --ink:#0E1B33;
  --text:#44506B;
  --muted:#7A8699;
  --line:#E4E9F2;
  --page:#F6F8FC;
  --surface:#FFFFFF;
  --footer-bg:#0E1B33;
  --r-card:14px;
  --r-img:10px;
  --r-btn:999px;
  --r-btn-alt:10px;
  --r-input:10px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(14,27,51,.05);
  --sh-2:0 8px 24px rgba(14,27,51,.07);
  --sh-3:0 16px 40px rgba(14,27,51,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--page);
}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--ink);font-weight:700;letter-spacing:-0.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
a:hover{color:var(--accent)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
figure{margin:0}

/* ---------- Foundation 覆盖 ---------- */
.grid-container{max-width:1200px;padding-left:32px;padding-right:32px;margin-left:auto;margin-right:auto}
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-x>.cell,.grid-x.grid-margin-x>.cell{padding-left:12px;padding-right:12px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--brand);color:#fff;border:1px solid transparent;border-radius:var(--r-btn);padding:12px 24px;font-weight:600;line-height:1.4;margin:0;transition:background-color .18s ease,color .18s ease,box-shadow .18s ease}
.button:hover{background:var(--brand-hover);color:#fff}
.callout{margin:0;padding:20px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);color:var(--text)}
input[type="text"],input[type="search"],input[type="email"],input[type="password"],textarea,select{
  border:1px solid var(--line);border-radius:var(--r-input);background:#fff;box-shadow:none;
  height:auto;padding:11px 14px;margin:0;font-size:15px;color:var(--ink);
}
input[type="text"]:focus,input[type="search"]:focus,input[type="email"]:focus,textarea:focus,select:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(26,95,208,.12);outline:none;
}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.4;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-primary:active{background:var(--brand-active);transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line);border-radius:var(--r-btn-alt)}
.btn-ghost:hover{background:var(--blue-soft);border-color:var(--brand);color:var(--brand)}
.btn-sm{min-height:38px;padding:8px 18px;font-size:14px;border-radius:var(--r-btn-alt)}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-badge);background:var(--blue-soft);color:var(--brand);font-size:12.5px;font-weight:600;line-height:1.4}
.badge-green{background:var(--green-soft);color:#0E8578}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand);text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:4px}
.link-arrow:hover{color:var(--accent)}
.mb-24{margin-bottom:24px}
section{scroll-margin-top:140px}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;box-shadow:var(--sh-1)}
.topbar{background:#fff;border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;gap:20px;height:72px;position:relative}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:10px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:13px;font-weight:800;letter-spacing:.02em}
.brand-text{display:flex;flex-direction:column;font-size:16px;font-weight:700;color:var(--ink);line-height:1.15}
.brand-text small{font-size:12px;font-weight:500;color:var(--muted);margin-top:2px}
.brand:hover .brand-text{color:var(--brand)}
.search-wrap{flex:1;display:flex;justify-content:center}
.search-box{display:flex;align-items:center;gap:8px;width:100%;max-width:360px;height:42px;padding:0 16px;border:1px solid var(--line);border-radius:999px;background:var(--page);color:var(--muted);transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease}
.search-box:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(26,95,208,.10)}
.search-box input{flex:1;border:0;background:transparent;box-shadow:none;padding:0;font-size:14.5px;color:var(--ink)}
.search-box input:focus{box-shadow:none;border:0;outline:none}
.search-box input::placeholder{color:var(--muted)}
.topbar-actions{display:flex;align-items:center;gap:18px;margin-left:auto}
.link-quiet{color:var(--text);font-size:14.5px;font-weight:600}
.link-quiet:hover{color:var(--brand)}
.icon-btn{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink);transition:background-color .18s ease,border-color .18s ease}
.icon-btn:hover{background:var(--blue-soft);border-color:var(--brand);color:var(--brand)}
.channelbar{background:#fff;border-bottom:1px solid var(--line)}
.channelbar-inner{position:relative}
.channels{display:flex;align-items:center;gap:6px;height:52px;overflow-x:auto;scrollbar-width:none}
.channels::-webkit-scrollbar{display:none}
.channel{display:inline-flex;align-items:center;height:52px;padding:0 16px;border-bottom:3px solid transparent;color:var(--text);font-size:14.5px;font-weight:600;white-space:nowrap;transition:background-color .18s ease,color .18s ease,border-color .18s ease}
.channel:hover{background:var(--blue-soft);color:var(--brand)}
.channel.is-active{background:var(--blue-soft);color:var(--brand);border-bottom-color:var(--brand)}

/* ---------- 内页头图 ---------- */
.page-hero{position:relative;padding:52px 0 76px;background:#fff;border-bottom:1px solid var(--line);overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(26,95,208,.10) 1px,transparent 1px);background-size:18px 18px;opacity:.55;pointer-events:none}
.page-hero .grid-container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .current{color:var(--ink);font-weight:600}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:999px;background:var(--blue-soft);color:var(--brand);font-size:13px;font-weight:600;margin-bottom:16px}
.page-hero h1{font-size:clamp(30px,4.2vw,46px);line-height:1.2;font-weight:800;letter-spacing:-0.02em}
.hero-sub{margin-top:16px;font-size:17px;line-height:1.7;color:var(--text);max-width:520px}
.hero-actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.hero-note{margin-top:18px;font-size:13.5px;color:var(--muted)}
.hero-figure{position:relative}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;border:1px solid var(--line);box-shadow:var(--sh-2)}
.hero-badge{position:absolute;right:16px;bottom:-16px;display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 16px;font-size:13px;font-weight:600;color:var(--ink);box-shadow:var(--sh-2)}
.hero-badge i{width:8px;height:8px;border-radius:50%;background:var(--green);display:inline-block}

/* ---------- 区块 ---------- */
.section{padding:88px 0}
.section-alt{background:#fff}
.section-head{max-width:780px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3}
.section-sub{margin-top:14px;font-size:15.5px;color:var(--text)}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head-row .section-head{margin-bottom:0}

/* ---------- 两栏对照 ---------- */
.sticky-col{position:sticky;top:150px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);margin-bottom:20px}
.panel h3{font-size:18px;line-height:1.45;margin-bottom:16px}
.panel-soft{background:var(--blue-soft);border-color:#CFE0FB;box-shadow:none}
.panel-soft h3{color:var(--brand)}
.panel-soft p{font-size:14.5px;color:var(--text)}
.check-list li{position:relative;padding:13px 0 13px 30px;border-top:1px solid var(--line);font-size:14.8px;line-height:1.65;color:var(--text)}
.check-list li:first-child{border-top:0;padding-top:2px}
.check-list li:first-child::before{top:9px}
.check-list li::before{content:"";position:absolute;left:2px;top:20px;width:12px;height:12px;border-radius:50%;background:var(--brand);box-shadow:inset 0 0 0 3px #fff}
.panel-note{margin-top:14px;font-size:14.5px;color:var(--text)}

/* ---------- 图文卡 ---------- */
.feature-card{display:flex;align-items:stretch;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-2);transition:box-shadow .2s ease,transform .2s ease}
.feature-card:hover{box-shadow:var(--sh-3);transform:translateY(-2px)}
.feature-media{flex:0 0 42%;overflow:hidden}
.feature-media img{width:100%;height:100%;min-height:220px;object-fit:cover;transition:transform .3s ease}
.feature-card:hover .feature-media img{transform:scale(1.03)}
.feature-body{padding:26px;display:flex;flex-direction:column;gap:12px;justify-content:center}
.feature-body h3{font-size:20px;line-height:1.45}
.feature-body p{font-size:14.8px;color:var(--text)}
.card{display:flex;flex-direction:column;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-2);transition:box-shadow .2s ease,transform .2s ease}
.card:hover{box-shadow:var(--sh-3);transform:translateY(-2px)}
.card-media{aspect-ratio:16/9;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:18px;line-height:1.45}
.card-text{font-size:14.5px;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:10px}
.card-link{margin-top:auto;padding-top:6px}

/* ---------- FAQ ---------- */
.faq-block{margin-top:24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.faq-head{padding:22px 24px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:14px}
.faq-head h3{font-size:18px}
.faq-item{border-top:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:16px 24px;text-align:left;font-size:15.5px;font-weight:600;color:var(--ink);transition:background-color .18s ease,box-shadow .18s ease}
.faq-q:hover{background:var(--blue-soft)}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .18s ease}
.faq-icon::before{left:3px;right:3px;top:9px;height:2px}
.faq-icon::after{top:3px;bottom:3px;left:9px;width:2px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0)}
.faq-item.is-open .faq-q{background:var(--blue-soft);box-shadow:inset 3px 0 0 var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .18s ease}
.faq-item.is-open .faq-a{max-height:400px}
.faq-a p{padding:0 24px 20px;font-size:14.8px;line-height:1.8;color:var(--text)}

/* ---------- 场景速查 ---------- */
.scene-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.scene-item{display:flex;gap:22px;align-items:flex-start;padding:24px;border-top:1px solid var(--line);transition:background-color .18s ease}
.scene-item:first-child{border-top:0}
.scene-item:hover{background:var(--page)}
.scene-label{flex:0 0 132px}
.scene-body{flex:1}
.scene-body h3{font-size:17px;line-height:1.5;margin-bottom:6px}
.scene-body p{font-size:14.6px;color:var(--text)}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--blue-soft);border-top:1px solid #CFE0FB;border-bottom:1px solid #CFE0FB;padding:56px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-inner h2{font-size:clamp(22px,2.4vw,28px);line-height:1.35}
.cta-inner p{margin-top:10px;font-size:15px;color:var(--text);max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:#C7D0E2;padding-top:64px}
.site-footer .brand{margin-bottom:4px}
.site-footer .brand-text{color:#fff}
.site-footer .brand-text small{color:#8996AE}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:#93A0B8}
.footer-list li{margin-bottom:12px}
.footer-list a{color:#C7D0E2;font-size:14.5px}
.footer-list a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;margin-bottom:14px;font-size:14.5px;color:#C7D0E2;line-height:1.65}
.footer-contact svg{flex:0 0 16px;margin-top:4px;color:#7E8DA8}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:13.5px;color:#8996AE}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:64px 0}
  .sticky-col{position:static}
  .feature-media{flex:0 0 38%}
  .page-hero{padding:44px 0 64px}
}
@media (max-width:900px){
  .cta-inner{flex-direction:column;align-items:flex-start}
  .channelbar-inner::after{content:"";position:absolute;top:0;right:20px;bottom:0;width:36px;background:linear-gradient(90deg,rgba(255,255,255,0),#fff);pointer-events:none}
  .section-head-row{align-items:flex-start}
}
@media (max-width:768px){
  .section{padding:48px 0}
  .page-hero{padding:32px 0 44px}
  .hero-sub{font-size:15.5px}
  .feature-card{flex-direction:column}
  .feature-media{flex:none;aspect-ratio:16/9}
  .feature-media img{min-height:0;height:100%}
  .scene-item{flex-direction:column;gap:10px}
  .scene-label{flex:none}
  .faq-q{padding:14px 20px}
  .faq-a p{padding:0 20px 18px}
  .hero-badge{right:12px;bottom:-14px;padding:8px 14px}
  .cta-band{padding:44px 0}
}
@media (max-width:640px){
  .grid-container{padding-left:20px;padding-right:20px}
  .topbar-inner{height:60px;gap:12px}
  .search-wrap{display:none}
  .search-wrap.is-open{display:flex;position:absolute;left:0;right:0;top:66px;z-index:30;background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;box-shadow:var(--sh-3)}
  .icon-btn{display:inline-flex}
  .topbar-actions{gap:12px}
  .topbar-actions .link-quiet{display:none}
  .channel{height:48px;padding:0 14px;font-size:14px}
  .channels{height:48px}
  .brand-text{font-size:15px}
  .brand-text small{display:none}
}
@media (max-width:480px){
  .section{padding:42px 0}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .panel{padding:20px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}