/* roulang page: index */
:root{
  --primary:#FF4D2D;
  --primary-dark:#D93A1C;
  --primary-soft:#FFE8E0;
  --secondary:#0E3B33;
  --secondary-deep:#08211D;
  --accent:#C6FF3E;
  --base:#FFF7F1;
  --surface:#FFFFFF;
  --line:#ECE4DB;
  --text:#17191A;
  --text-2:#5C6560;
  --text-3:#98A09A;
  --radius-card:20px;
  --radius-img:16px;
  --shadow-sm:0 1px 2px rgba(14,59,51,.05);
  --shadow-md:0 8px 24px -12px rgba(14,59,51,.18);
  --shadow-lift:0 18px 40px -20px rgba(255,77,45,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--base);
  color:var(--text);
  font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3{letter-spacing:-0.01em;margin:0}
p{margin:0}
ul{list-style:none;margin:0;padding:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px}
section[id]{scroll-margin-top:96px}

/* ---------- 容器与板块 ---------- */
.wrap{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.wrap{padding-left:32px;padding-right:32px}}
.sect{padding-top:80px;padding-bottom:80px}
@media(min-width:1024px){.sect{padding-top:112px;padding-bottom:112px}}
.sec-title{font-size:clamp(24px,3.2vw,36px);line-height:1.3;font-weight:800}
.sec-lead{font-size:16px;line-height:1.85;color:var(--text-2)}

/* ---------- 背景装饰 ---------- */
.grid-bg{
  background-image:linear-gradient(rgba(14,59,51,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(14,59,51,.045) 1px,transparent 1px);
  background-size:32px 32px;
}
.hero-glow{position:relative}
.hero-glow::before{
  content:"";position:absolute;top:-140px;right:-100px;width:540px;height:540px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,77,45,.10),rgba(255,77,45,0) 70%);pointer-events:none;
}
.track-dash{
  height:2px;
  background-image:linear-gradient(90deg,rgba(198,255,62,.5) 0 16px,transparent 16px 32px);
  background-size:32px 2px;background-repeat:repeat-x;
}

/* ---------- 浮动 Dock 导航 ---------- */
.site-dock{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);z-index:50;
  width:min(1120px,calc(100% - 32px));height:64px;border-radius:999px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line);box-shadow:var(--shadow-md);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 12px 0 18px;
  transition:height .25s ease,box-shadow .25s ease,background .25s ease;
}
.site-dock.is-scrolled{height:56px;background:rgba(255,255,255,.95);box-shadow:0 14px 34px -16px rgba(14,59,51,.3)}
.dock-logo{display:inline-flex;align-items:center;gap:9px;font-weight:800;font-size:16px;color:var(--text);white-space:nowrap}
.brand-mark{
  width:20px;height:20px;border-radius:6px;flex:none;display:inline-block;position:relative;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
}
.brand-mark::after{
  content:"";position:absolute;left:5px;right:5px;top:5px;bottom:5px;
  border:2px solid #fff;border-bottom:none;border-radius:4px 4px 0 0;
}
.nav-link{
  position:relative;font-size:14px;color:var(--text-2);padding:8px 12px;border-radius:999px;
  transition:color .2s ease,background .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:#f7f3ee}
.nav-link.active{color:var(--primary-dark);background:var(--primary-soft);font-weight:700}
.icon-btn{
  width:38px;height:38px;border-radius:999px;border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-2);
  cursor:pointer;transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.icon-btn:hover{color:var(--primary-dark);background:var(--primary-soft);border-color:var(--primary-soft)}
.mobile-panel{
  position:fixed;top:88px;left:16px;right:16px;z-index:40;
  background:#fff;border:1px solid var(--line);border-radius:24px;
  box-shadow:0 24px 50px -24px rgba(14,59,51,.35);
  padding:20px;opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
  max-height:calc(100vh - 120px);overflow-y:auto;
}
.mobile-panel.open{opacity:1;visibility:visible;transform:translateY(0)}
@media(min-width:768px){.mobile-panel{display:none}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;white-space:nowrap;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-lift)}
.btn-primary:hover{background:#ff5c3f;transform:translateY(-2px);box-shadow:0 22px 46px -20px rgba(255,77,45,.55)}
.btn-primary:active{transform:translateY(0);box-shadow:0 10px 22px -14px rgba(255,77,45,.5)}
.btn-ghost{background:#fff;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--primary-soft);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-ghost:active{transform:translateY(0)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;background:none;border:none;padding:0;
  color:var(--primary-dark);font-size:15px;font-weight:700;cursor:pointer;
}
.btn-text .arrow{display:inline-block;transition:transform .2s ease}
.btn-text:hover .arrow{transform:translateX(3px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary-dark);
  font-size:13px;line-height:1;font-weight:700;
}
.badge-dark{background:rgba(255,255,255,.12);color:var(--accent)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block;box-shadow:0 0 0 3px rgba(198,255,62,.18)}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--text-2);font-size:13px;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.chip:hover{color:var(--primary-dark);border-color:var(--primary-soft);background:var(--primary-soft)}
.chip-active{background:var(--secondary);border-color:var(--secondary);color:#fff}
.chip-active:hover{background:var(--secondary);color:#fff;border-color:var(--secondary)}

/* ---------- 卡片 ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--primary-soft)}
.media-frame{background:var(--primary-soft);border-radius:14px;overflow:hidden}
.media-frame img{width:100%;height:100%;object-fit:cover}

/* ---------- 痛点卡 ---------- */
.pain-card{
  background:#F4F3F0;border:1px solid #E7E5E0;border-radius:var(--radius-card);
  padding:26px;transition:transform .25s ease,background .25s ease,border-color .25s ease;
}
.pain-card:hover{transform:translateY(-4px);background:#F0EEE9;border-color:#DEDAD2}
.pain-icon{
  width:42px;height:42px;border-radius:12px;background:#fff;border:1px solid #E7E5E0;
  display:inline-flex;align-items:center;justify-content:center;color:var(--secondary);
}

/* ---------- 要点列表 ---------- */
.check-list li{position:relative;padding-left:20px;margin-top:10px;font-size:15px;line-height:1.75;color:var(--text-2)}
.check-list li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:2px;background:var(--primary);
}

/* ---------- 证言 ---------- */
.testimonial{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-sm);height:100%;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.testimonial:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--primary-soft)}
.testimonial::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;border-radius:999px;background:var(--primary);
}
.avatar{
  width:44px;height:44px;border-radius:50%;flex:none;display:inline-flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;color:#fff;
}
.stars{color:#FFB020;font-size:14px;letter-spacing:2px}

/* ---------- FAQ ---------- */
.faq-item{
  border:1px solid var(--line);border-radius:16px;background:#fff;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item + .faq-item{margin-top:12px}
.faq-item[open]{border-color:var(--primary-soft);box-shadow:var(--shadow-md);box-shadow:inset 3px 0 0 var(--primary),var(--shadow-md)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;font-size:16px;font-weight:700;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{flex:none;color:var(--primary);transition:transform .25s ease}
.faq-item[open] .faq-icon{transform:rotate(180deg)}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- 表单 ---------- */
.field-label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px}
.field-input{
  width:100%;height:48px;border-radius:12px;border:1px solid var(--line);background:#fff;
  padding:0 16px;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.field-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}

/* ---------- 页脚 ---------- */
.foot-link{position:relative;color:rgba(255,255,255,.66);transition:color .2s ease}
.foot-link:hover{color:#fff}
.foot-link::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:#fff;
  transition:width .25s ease;
}
.foot-link:hover::after{width:100%}

/* ---------- 响应式微调 ---------- */
@media(max-width:639px){
  .btn{height:46px;padding:0 20px;font-size:14px}
  .pain-card{padding:20px}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --primary:#FF4D2D;
  --primary-dark:#D93A1C;
  --primary-soft:#FFE8E0;
  --secondary:#0E3B33;
  --secondary-deep:#08211D;
  --accent:#C6FF3E;
  --base:#FFF7F1;
  --surface:#FFFFFF;
  --line:#ECE4DB;
  --text:#17191A;
  --text-2:#5C6560;
  --text-3:#98A09A;
  --radius-card:20px;
  --radius-img:16px;
  --radius-btn:12px;
  --shadow-sm:0 1px 2px rgba(14,59,51,.05);
  --shadow-md:0 8px 24px -12px rgba(14,59,51,.18);
  --shadow-lift:0 18px 40px -20px rgba(255,77,45,.35);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--base);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input{font:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
[id]{scroll-margin-top:96px;}
::selection{background:var(--primary-soft);color:var(--primary-dark);}

.wrap{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){.wrap{padding-left:32px;padding-right:32px;}}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:10px 18px;border-radius:0 0 12px 0;z-index:99;}
.skip-link:focus{left:0;}

/* ---------- Dock 导航 ---------- */
.site-dock{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  width:min(1120px,calc(100% - 32px));height:64px;z-index:50;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:0 14px 0 20px;
  border-radius:999px;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-md);
  transition:height .25s ease,box-shadow .25s ease,background .25s ease;
}
.site-dock.is-scrolled{height:56px;box-shadow:0 14px 34px -16px rgba(14,59,51,.32);background:rgba(255,255,255,.94);}
.dock-logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--text);white-space:nowrap;}
.brand-mark{
  position:relative;width:24px;height:24px;border-radius:8px;flex:none;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  box-shadow:0 6px 14px -6px rgba(255,77,45,.7);
}
.brand-mark::after{
  content:"";position:absolute;left:7px;right:7px;top:6px;bottom:8px;
  border:2px solid #fff;border-bottom:none;border-radius:6px 6px 0 0;
}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--text-2);
  transition:color .2s ease,background .2s ease,font-weight .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:var(--primary-soft);}
.nav-link.active{background:var(--primary-soft);color:var(--primary-dark);font-weight:700;}
.icon-btn{
  width:38px;height:38px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--surface);color:var(--text-2);
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.icon-btn:hover{color:var(--primary);border-color:var(--primary-soft);transform:translateY(-1px);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-lift);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 22px 44px -20px rgba(255,77,45,.55);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn-ghost{background:var(--surface);color:var(--text);border:1px solid var(--line);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-md);}
.btn-ghost:active{transform:translateY(0);}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--primary-dark);}
.btn-text span{transition:transform .2s ease;}
.btn-text:hover span{transform:translateX(3px);}
.mobile-panel{
  position:fixed;top:88px;left:50%;z-index:60;
  width:calc(100% - 32px);max-width:560px;
  transform:translateX(-50%) translateY(-12px);
  opacity:0;visibility:hidden;pointer-events:none;
  background:var(--surface);border:1px solid var(--line);border-radius:24px;
  padding:20px;box-shadow:0 24px 60px -24px rgba(14,59,51,.35);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
}
.mobile-panel.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0);}
.field-label{display:block;font-size:14px;font-weight:600;color:var(--text-2);margin-bottom:8px;}
.field-input{
  width:100%;height:48px;padding:0 14px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field-input::placeholder{color:var(--text-3);}
.field-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft);}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.crumb a{color:var(--text-3);transition:color .2s ease;}
.crumb a:hover{color:var(--primary-dark);}
.crumb-sep{color:var(--line);}
.crumb-current{color:var(--text-2);font-weight:600;max-width:min(520px,60vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.post-head{padding-bottom:22px;border-bottom:1px solid var(--line);}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:700;background:var(--primary-soft);color:var(--primary-dark);
}
.badge-accent{background:var(--secondary);color:var(--accent);}
.post-title{
  margin-top:16px;
  font-size:clamp(26px,4vw,40px);
  line-height:1.28;
  font-weight:800;
  letter-spacing:-.01em;
}
.meta-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:16px;font-size:13px;color:var(--text-2);
  font-variant-numeric:tabular-nums;
}
.meta-sep{color:var(--line);}

/* ---------- 正文阅读区 ---------- */
.article-body{max-width:760px;margin-top:32px;font-size:16px;line-height:1.9;color:var(--text);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.15em;}
.article-body h2{
  position:relative;padding-left:14px;
  margin:40px 0 14px;
  font-size:clamp(20px,2.4vw,22px);line-height:1.45;font-weight:700;letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;bottom:.3em;width:4px;border-radius:4px;background:var(--primary);
}
.article-body h3{margin:28px 0 10px;font-size:18px;font-weight:700;line-height:1.5;}
.article-body ul,.article-body ol{margin:0 0 1.15em;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:8px;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--primary);
}
.article-body ol{counter-reset:item;}
.article-body ol li{position:relative;padding-left:26px;margin-bottom:8px;counter-increment:item;}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:.15em;font-size:13px;font-weight:700;color:var(--primary);
}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--primary);
  background:var(--primary-soft);border-radius:12px;color:var(--text-2);
}
.article-body img{border-radius:var(--radius-img);margin:24px 0;}
.article-body figure{margin:24px 0;}
.article-body figcaption{margin-top:8px;font-size:13px;color:var(--text-3);text-align:center;}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--base);font-weight:700;}
.article-body a{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px;}
.article-body code{background:var(--primary-soft);border-radius:6px;padding:2px 6px;font-size:14px;}
.empty-state{
  margin-top:32px;padding:36px 24px;text-align:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);
}
.empty-title{font-size:18px;font-weight:800;margin-bottom:10px;}
.empty-state p{color:var(--text-2);margin-bottom:18px;}

/* ---------- 标签 / 上下篇 ---------- */
.post-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line);}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:var(--surface);font-size:13px;color:var(--text-2);
  transition:border-color .2s ease,color .2s ease;
}
.tag:hover{border-color:var(--primary);color:var(--primary-dark);}
.post-nav{display:grid;gap:14px;margin-top:24px;}
@media (min-width:768px){.post-nav{grid-template-columns:1fr 1fr;}}
.post-nav-item{
  display:block;padding:16px 20px;background:var(--surface);border:1px solid var(--line);
  border-radius:16px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.post-nav-item:hover{transform:translateY(-4px);border-color:var(--primary-soft);box-shadow:var(--shadow-md);}
.post-nav-label{font-size:13px;color:var(--text-3);}
.post-nav-title{margin-top:6px;font-size:15px;font-weight:700;line-height:1.6;}

/* ---------- 相关推荐 ---------- */
.section-title{
  font-size:clamp(20px,2.6vw,24px);font-weight:800;letter-spacing:-.01em;margin-bottom:20px;
}
.rel-grid{display:grid;gap:20px;}
@media (min-width:640px){.rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.rel-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.rel-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:var(--primary-soft);box-shadow:var(--shadow-md);}
.rel-thumb{
  aspect-ratio:16/10;border-radius:14px;overflow:hidden;margin-bottom:14px;
  background:var(--primary-soft);
}
.rel-thumb img{width:100%;height:100%;object-fit:cover;}
.rel-title{margin:12px 0 8px;font-size:17px;font-weight:700;line-height:1.6;}
.rel-desc{
  font-size:14px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:700;color:var(--primary-dark);}
.rel-more span{transition:transform .2s ease;}
.rel-card:hover .rel-more span{transform:translateX(3px);}

/* ---------- 侧栏 ---------- */
.side-col{align-self:start;position:sticky;top:104px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-sm);
}
.side-card + .side-card{margin-top:20px;}
.side-title{font-size:15px;font-weight:800;letter-spacing:-.01em;margin-bottom:14px;}
.hot-list li + li{margin-top:12px;}
.hot-list a{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-2);line-height:1.7;transition:color .2s ease;}
.hot-list a:hover{color:var(--primary-dark);}
.hot-num{
  flex:none;font-size:13px;font-weight:800;color:var(--primary);
  font-variant-numeric:tabular-nums;
}
.quick-links{display:grid;gap:8px;}
.quick-links a{
  display:block;padding:10px 14px;border-radius:12px;font-size:14px;color:var(--text-2);
  border:1px solid var(--line);transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.quick-links a:hover{border-color:var(--primary);color:var(--primary-dark);background:var(--primary-soft);}

/* ---------- 页脚 ---------- */
.foot-link{color:rgba(255,255,255,.7);transition:color .2s ease;}
.foot-link:hover{color:#fff;text-decoration:underline;}

@media (max-width:639px){
  .post-title{font-size:26px;}
  .crumb-current{max-width:100%;}
}

/* roulang page: category1 */
:root{
  --primary:#FF4D2D;
  --primary-dark:#D93A1C;
  --primary-soft:#FFE8E0;
  --secondary:#0E3B33;
  --secondary-deep:#08211D;
  --accent:#C6FF3E;
  --base:#FFF7F1;
  --surface:#FFFFFF;
  --line:#ECE4DB;
  --text:#17191A;
  --text-2:#5C6560;
  --text-3:#98A09A;
  --radius-card:20px;
  --radius-img:16px;
  --radius-btn:12px;
  --shadow-sm:0 1px 2px rgba(14,59,51,.05);
  --shadow-md:0 8px 24px -12px rgba(14,59,51,.18);
  --shadow-lift:0 18px 40px -20px rgba(255,77,45,.35);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--base);color:var(--text);
  font-family:var(--font-cn);font-size:16px;line-height:1.8;
  overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3{letter-spacing:-.01em;font-weight:800;color:var(--secondary);margin:0}
p{margin:0}
time{font-variant-numeric:tabular-nums}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;border-radius:8px;
}
section[id]{scroll-margin-top:96px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.wrap{padding:0 32px}}

/* ---------- Dock 导航 ---------- */
.site-dock{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);z-index:50;
  width:min(1120px,calc(100% - 32px));height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:0 12px 0 18px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:999px;box-shadow:var(--shadow-md);
  transition:height .25s ease,box-shadow .25s ease,background .25s ease;
}
.site-dock.is-scrolled{
  height:56px;background:rgba(255,255,255,.96);
  box-shadow:0 16px 36px -20px rgba(14,59,51,.45);
}
.dock-logo{
  display:inline-flex;align-items:center;gap:9px;flex:0 0 auto;
  font-size:16px;font-weight:800;color:var(--secondary);white-space:nowrap;
}
.brand-mark{
  width:22px;height:22px;flex:0 0 auto;position:relative;
  border-radius:8px 8px 8px 2px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  box-shadow:0 6px 14px -8px rgba(255,77,45,.9);
}
.brand-mark::after{
  content:"";position:absolute;left:5px;right:5px;top:5px;bottom:5px;
  border:2px solid rgba(255,255,255,.92);border-radius:4px;border-right-color:transparent;
}
.nav-link{
  position:relative;display:block;padding:8px 13px;border-radius:999px;
  font-size:14.5px;font-weight:600;color:var(--text-2);
  transition:color .2s,background .2s;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--secondary);background:rgba(255,77,45,.07)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--primary-dark);background:var(--primary-soft)}
.nav-link.active::after{transform:scaleX(1)}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:999px;border:1px solid var(--line);
  background:#fff;color:var(--text-2);cursor:pointer;
  transition:color .2s,background .2s,border-color .2s,transform .2s;
}
.icon-btn:hover{color:var(--primary-dark);background:var(--primary-soft);border-color:var(--primary-soft);transform:translateY(-1px)}
.dock-cta{height:42px;padding:0 20px;font-size:14px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-lift)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 22px 44px -20px rgba(255,77,45,.58)}
.btn-primary:active{transform:translateY(0);box-shadow:0 10px 20px -14px rgba(255,77,45,.6)}
.btn-ghost{background:#fff;color:var(--secondary);border-color:var(--line);box-shadow:var(--shadow-sm)}
.btn-ghost:hover{border-color:var(--primary-soft);color:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-ghost:active{transform:translateY(0)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.42)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;background:none;border:none;
  padding:0;font-size:15px;font-weight:700;color:var(--primary-dark);cursor:pointer;
}
.btn-text .arrow{display:inline-block;transition:transform .2s ease}
.btn-text:hover .arrow{transform:translateX(3px)}

/* ---------- 移动端面板 ---------- */
.mobile-panel{
  position:fixed;top:88px;left:50%;transform:translateX(-50%);z-index:49;
  width:min(1120px,calc(100% - 32px));max-height:calc(100vh - 120px);overflow:auto;
  background:#fff;border:1px solid var(--line);border-radius:24px;
  box-shadow:0 24px 52px -24px rgba(14,59,51,.45);
  padding:18px;display:none;
}
.mobile-panel.open{display:block}
.mobile-panel .nav-link{width:100%;padding:12px 14px;border-radius:14px;font-size:15px}
.mobile-panel .nav-link::after{display:none}
.field-label{display:block;font-size:14px;font-weight:600;color:var(--text-2);margin-bottom:8px}
.field-input{
  width:100%;height:48px;border-radius:12px;border:1px solid var(--line);
  background:#fff;padding:0 16px;font-size:15px;transition:border-color .2s,box-shadow .2s;
}
.field-input::placeholder{color:var(--text-3)}
.field-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}

/* ---------- 通用区块 ---------- */
.section{padding:80px 0}
@media (min-width:1024px){.section{padding:104px 0}}
.section-tight{padding:64px 0}
@media (min-width:1024px){.section-tight{padding:80px 0}}
.h1{font-size:clamp(30px,5vw,48px);line-height:1.2;font-weight:800;color:var(--secondary)}
.h2{font-size:clamp(24px,3.2vw,36px);line-height:1.3;font-weight:800;color:var(--secondary)}
.h3{font-size:20px;line-height:1.45;font-weight:700;color:var(--secondary)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--primary-dark);
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--primary)}
.lead{font-size:16.5px;line-height:1.85;color:var(--text-2)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:34px}
.section-head .h2{max-width:720px}
.section-head .sub{margin-top:10px;color:var(--text-2);font-size:15.5px;max-width:680px}
.center-head{max-width:720px;margin:0 auto 38px;text-align:center}
.center-head .eyebrow::before{display:none}
.center-head p{margin-top:12px;color:var(--text-2);font-size:15.5px}

/* ---------- 面包屑 & Hero ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-3);margin-bottom:26px;
}
.breadcrumb a{color:var(--text-2);transition:color .2s}
.breadcrumb a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:4px}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--text-3)}
.page-hero{position:relative;padding:132px 0 0;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(660px 320px at 90% -12%, rgba(255,77,45,.13), transparent 70%),
    linear-gradient(to right, rgba(14,59,51,.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(14,59,51,.055) 1px, transparent 1px);
  background-size:auto,64px 64px,64px 64px;
  -webkit-mask-image:linear-gradient(to bottom,#000 55%,transparent 100%);
  mask-image:linear-gradient(to bottom,#000 55%,transparent 100%);
}
.page-hero .wrap{position:relative;z-index:1}
.hero-grid{display:grid;gap:34px;align-items:center;grid-template-columns:1fr}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:center}
}
.hero-text .h1{margin:14px 0 18px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 26px}
.tag{
  display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13.5px;font-weight:600;color:var(--text-2);
}
.tag .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px rgba(198,255,62,.3)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-media{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-md);aspect-ratio:3/2;background:var(--primary-soft);
}
.hero-media img{width:100%;height:100%;object-fit:cover}

/* ---------- 筛选条 ---------- */
.filter-bar{
  display:flex;gap:8px;overflow-x:auto;padding:6px;
  background:var(--surface);border:1px solid var(--line);border-radius:999px;
  box-shadow:var(--shadow-sm);scrollbar-width:none;
}
.filter-bar::-webkit-scrollbar{display:none}
.filter-chip{
  flex:0 0 auto;padding:9px 18px;border-radius:999px;border:none;background:transparent;
  font-size:14px;font-weight:600;color:var(--text-2);cursor:pointer;transition:background .2s,color .2s;
}
.filter-chip:hover{background:var(--primary-soft);color:var(--primary-dark)}
.filter-chip.active{background:var(--secondary);color:#fff}

/* ---------- 分类布局：三列卡片 + 右侧说明栏 ---------- */
.cat-layout{display:grid;gap:26px;grid-template-columns:1fr;align-items:start;margin-top:30px}
@media (min-width:1024px){.cat-layout{grid-template-columns:minmax(0,2.1fr) minmax(0,1fr)}}
@media (min-width:1280px){.cat-layout{grid-template-columns:minmax(0,2.5fr) minmax(0,1fr)}}
.card-grid{display:grid;gap:22px;grid-template-columns:1fr}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1280px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}

/* ---------- 卡片 ---------- */
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--primary-soft);box-shadow:var(--shadow-md)}
.card-cover{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--primary-soft)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:17.5px;line-height:1.5;font-weight:700;color:var(--secondary)}
.card-desc{
  font-size:14.5px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;padding-top:6px}
.badge{
  display:inline-flex;align-items:center;gap:6px;width:fit-content;
  padding:4px 12px;border-radius:999px;font-size:13px;font-weight:700;
  background:var(--primary-soft);color:var(--primary-dark);
}
.badge-dark{background:var(--secondary);color:var(--accent)}

/* ---------- 右侧说明栏 ---------- */
.aside-stack{display:grid;gap:18px}
@media (min-width:1024px){.aside-stack{position:sticky;top:100px;align-self:start}}
.aside-card{
  background:var(--surface);border:1px solid var(--line);border-radius:18px;
  padding:22px;box-shadow:var(--shadow-sm);
}
.aside-card h3{font-size:16.5px;margin-bottom:14px}
.aside-card p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.aside-dark{background:var(--secondary);border-color:var(--secondary);color:#fff}
.aside-dark h3{color:#fff}
.aside-dark p{color:rgba(255,255,255,.72)}
.aside-dark .aside-line{color:rgba(255,255,255,.72)}
.aside-list{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.aside-list li{
  display:flex;align-items:flex-start;justify-content:space-between;gap:12px;
  font-size:14.5px;color:var(--text-2);line-height:1.7;
}
.aside-list li strong{color:var(--secondary);font-weight:700;white-space:nowrap}
.aside-dark .aside-list li{color:rgba(255,255,255,.72)}
.aside-dark .aside-list li strong{color:var(--accent)}
.check-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.check-list li{position:relative;padding-left:24px;font-size:14.5px;line-height:1.75;color:var(--text-2)}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:3px;background:var(--primary);
}

/* ---------- 更新提示（CMS 区） ---------- */
.notice-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
@media (min-width:900px){.notice-list{grid-template-columns:repeat(3,minmax(0,1fr))}}
.notice-item{
  display:flex;flex-direction:column;gap:10px;
  padding:20px 22px;background:var(--surface);border:1px solid var(--line);border-radius:18px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.notice-item:hover{transform:translateY(-3px);border-color:var(--primary-soft);box-shadow:var(--shadow-md)}
.notice-title{font-size:16.5px;font-weight:700;color:var(--secondary);transition:color .2s}
.notice-title:hover{color:var(--primary-dark)}
.notice-desc{font-size:14.5px;line-height:1.75;color:var(--text-2)}
.notice-time{font-size:13px;color:var(--text-3);margin-top:auto}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;display:grid;gap:12px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:16px;
  padding:6px 20px;transition:border-color .2s,box-shadow .2s;
}
.faq-item[open]{border-left:3px solid var(--primary);box-shadow:var(--shadow-md)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:15px 0;font-size:16.5px;font-weight:700;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";flex:0 0 auto;width:9px;height:9px;margin-right:4px;
  border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);
  transform:rotate(45deg);transition:transform .25s ease,border-color .25s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--primary-dark)}
.faq-item p{font-size:15px;line-height:1.85;color:var(--text-2);padding-bottom:18px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;padding:44px 26px;color:#fff;
  background-color:var(--secondary-deep);
  background-image:
    linear-gradient(120deg, rgba(8,33,29,.94), rgba(14,59,51,.86)),
    url('/assets/images/backpic/back-3.webp');
  background-size:cover,cover;background-position:center,center;
  box-shadow:0 30px 60px -34px rgba(8,33,29,.8);
}
@media (min-width:1024px){.cta-band{padding:58px 56px}}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 240px at 92% -10%, rgba(198,255,62,.18), transparent 70%);
}
.cta-inner{position:relative;z-index:1;display:grid;gap:26px;align-items:center}
@media (min-width:900px){.cta-inner{grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:44px}}
.cta-band .h2{color:#fff}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.74);font-size:15.5px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (min-width:900px){.cta-actions{justify-content:flex-end}}

/* ---------- 页脚 ---------- */
footer{color:rgba(255,255,255,.7)}
footer h3{font-size:14px;color:var(--accent);font-weight:700;margin:0}
footer a{color:rgba(255,255,255,.62)}
.foot-link{transition:color .2s}
.foot-link:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}

/* ---------- 跳到主要内容 ---------- */
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:60;
  background:#fff;color:var(--secondary);padding:10px 16px;border-radius:12px;
  border:1px solid var(--line);box-shadow:var(--shadow-md);
}
.skip-link:focus{left:16px;top:16px}

/* roulang page: category2 */
:root{
    --primary:#FF4D2D;
    --primary-dark:#D93A1C;
    --primary-soft:#FFE8E0;
    --secondary:#0E3B33;
    --secondary-deep:#08211D;
    --accent:#C6FF3E;
    --base:#FFF7F1;
    --surface:#FFFFFF;
    --line:#ECE4DB;
    --text:#17191A;
    --text-2:#5C6560;
    --text-3:#98A09A;
    --r-card:20px;
    --r-img:16px;
    --r-btn:12px;
    --sh-sm:0 1px 2px rgba(14,59,51,.05);
    --sh-md:0 8px 24px -12px rgba(14,59,51,.18);
    --sh-lift:0 18px 40px -20px rgba(255,77,45,.35);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{background:var(--base);scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.8;
    color:var(--text);
    background:var(--base);
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none;}
  img{max-width:100%;display:block;}
  button{font-family:inherit;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}

  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
  @media (min-width:768px){ .wrap{padding:0 32px;} }

  .num{font-family:"Inter",system-ui,sans-serif;font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
  .section{padding:80px 0;}
  @media (min-width:768px){ .section{padding:112px 0;} }
  [id]{scroll-margin-top:96px;}

  /* ============ 浮动 Dock 导航 ============ */
  .site-dock{
    position:fixed;top:16px;left:50%;transform:translateX(-50%);z-index:50;
    width:min(1120px,calc(100% - 32px));height:64px;
    display:flex;align-items:center;justify-content:space-between;gap:14px;
    padding:0 16px;border-radius:999px;
    background:rgba(255,255,255,.88);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    border:1px solid var(--line);box-shadow:var(--sh-md);
    transition:height .25s ease,box-shadow .25s ease,background .25s ease;
  }
  .site-dock.shrink{height:56px;box-shadow:0 14px 34px -18px rgba(14,59,51,.32);background:rgba(255,255,255,.94);}
  .dock-logo{
    display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;
    font-size:16px;font-weight:800;letter-spacing:-.01em;color:var(--text);
  }
  .brand-mark{
    width:14px;height:14px;border-radius:4px;flex:0 0 auto;
    background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
    box-shadow:0 0 0 3px var(--primary-soft);
    position:relative;
  }
  .brand-mark::after{
    content:"";position:absolute;right:-3px;bottom:-3px;width:6px;height:6px;
    border-radius:50%;background:var(--accent);border:1px solid #fff;
  }
  .nav-link{
    display:inline-flex;align-items:center;height:38px;padding:0 13px;
    font-size:14px;font-weight:600;color:var(--text-2);border-radius:999px;
    transition:color .2s ease,background .2s ease;
  }
  .nav-link:hover{color:var(--text);background:var(--primary-soft);}
  .nav-link.active{color:var(--primary-dark);background:var(--primary-soft);}
  .icon-btn{
    display:inline-flex;align-items:center;justify-content:center;
    width:40px;height:40px;border-radius:999px;border:1px solid var(--line);
    background:var(--surface);color:var(--text-2);cursor:pointer;
    transition:border-color .2s ease,color .2s ease,box-shadow .2s ease;
  }
  .icon-btn:hover{border-color:var(--primary-soft);color:var(--primary-dark);box-shadow:var(--sh-md);}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:999px;
    font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
    transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  }
  .btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-lift);}
  .btn-primary:hover{transform:translateY(-2px);background:#ff5f42;box-shadow:0 22px 46px -20px rgba(255,77,45,.5);}
  .btn-primary:active{transform:translateY(0);box-shadow:var(--sh-sm);}
  .btn-ghost{background:var(--surface);color:var(--secondary);border-color:var(--line);box-shadow:var(--sh-sm);}
  .btn-ghost:hover{transform:translateY(-2px);border-color:var(--primary-soft);box-shadow:var(--sh-md);}
  .btn-ghost:active{transform:translateY(0);box-shadow:var(--sh-sm);}
  .btn-link{
    display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--primary-dark);
  }
  .btn-link span{transition:transform .2s ease;}
  .btn-link:hover span{transform:translateX(3px);}

  .mobile-panel{
    position:fixed;top:88px;left:16px;right:16px;z-index:49;
    display:none;padding:20px;border-radius:24px;
    background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh-md);
    max-height:calc(100vh - 120px);overflow-y:auto;
  }
  .mobile-panel.open{display:block;}
  @media (min-width:768px){ .mobile-panel{display:none !important;} }

  .field-label{display:block;font-size:14px;font-weight:600;color:var(--text-2);margin-bottom:6px;}
  .field-input{
    width:100%;height:48px;padding:0 16px;border-radius:12px;
    border:1px solid var(--line);background:var(--surface);color:var(--text);font-size:15px;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .field-input::placeholder{color:var(--text-3);}
  .field-input:focus{
    outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft);
  }

  /* ============ 通用组件 ============ */
  .badge{
    display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
    border-radius:999px;font-size:13px;font-weight:600;
    background:var(--primary-soft);color:var(--primary-dark);
  }
  .badge-dark{background:rgba(198,255,62,.16);color:var(--accent);}
  .badge-line{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.22);}

  .card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--sh-sm);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--primary-soft);}

  .sec-title{font-size:clamp(24px,3.2vw,36px);line-height:1.3;font-weight:800;letter-spacing:-.01em;}
  .sec-sub{margin-top:14px;font-size:16px;color:var(--text-2);max-width:720px;}

  /* ============ Hero ============ */
  .hero{position:relative;padding:48px 0 64px;overflow:hidden;}
  .hero::after{
    content:"";position:absolute;top:-180px;right:-140px;width:540px;height:540px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,77,45,.10) 0%,rgba(255,77,45,0) 70%);
    pointer-events:none;
  }
  .hero h1{
    margin-top:18px;
    font-size:clamp(30px,5vw,52px);line-height:1.22;font-weight:800;letter-spacing:-.01em;
  }
  .hero-lede{margin-top:18px;font-size:16.5px;line-height:1.9;color:var(--text-2);max-width:600px;}
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
  .hero-tags li{
    display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
    background:var(--surface);border:1px solid var(--line);font-size:13px;color:var(--text-2);
  }
  .hero-tags li::before{
    content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);
    box-shadow:0 0 0 3px rgba(198,255,62,.22);
  }
  .hero-media{position:relative;}
  .hero-figure{
    border-radius:24px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-md);
  }
  .hero-figure img{width:100%;aspect-ratio:3/2;object-fit:cover;}
  .hero-float{
    position:absolute;right:-10px;bottom:-20px;width:42%;border-radius:16px;overflow:hidden;
    border:4px solid #fff;box-shadow:var(--sh-md);background:var(--surface);
  }
  .hero-float img{width:100%;aspect-ratio:16/10;object-fit:cover;}
  @media (max-width:639px){
    .hero-float{right:8px;bottom:-14px;width:46%;}
  }

  /* ============ 时间轴轨道 ============ */
  .rail{position:relative;display:grid;gap:20px;}
  @media (min-width:1024px){
    .rail{grid-template-columns:repeat(4,1fr);gap:28px;}
    .rail::before{
      content:"";position:absolute;left:26px;right:26px;top:27px;
      border-top:2px dashed var(--line);z-index:0;
    }
  }
  .rail-step{
    position:relative;z-index:1;padding:22px;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--sh-sm);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .rail-step:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--primary-soft);}
  .rail-dot{
    display:inline-flex;align-items:center;justify-content:center;
    width:54px;height:54px;border-radius:50%;
    background:var(--surface);border:1px solid var(--primary-soft);box-shadow:var(--sh-sm);
    color:var(--primary-dark);font-size:17px;font-weight:800;
  }
  .rail-step h3{margin-top:16px;font-size:18px;font-weight:700;}
  .rail-step p{margin-top:10px;font-size:14.5px;line-height:1.85;color:var(--text-2);}

  /* ============ 大图叙事块 ============ */
  .feature-media{
    position:relative;border-radius:24px;overflow:hidden;
    border:1px solid var(--line);box-shadow:var(--sh-md);
  }
  .feature-media img{width:100%;height:clamp(280px,42vw,420px);object-fit:cover;}
  .feature-media-body{
    position:absolute;left:0;right:0;bottom:0;padding:28px;
    background:linear-gradient(180deg,rgba(8,33,29,0) 0%,rgba(8,33,29,.9) 72%);
    color:#fff;
  }
  .feature-media-body h2{
    margin-top:14px;font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:800;
    color:#fff;letter-spacing:-.01em;
  }
  .feature-media-body p{margin-top:10px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.78);max-width:760px;}
  @media (max-width:767px){
    .feature-media-body{position:static;background:var(--secondary);padding:22px;}
  }

  .block-card{
    padding:24px;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);box-shadow:var(--sh-sm);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .block-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--primary-soft);}
  .block-card .idx{
    display:inline-flex;align-items:center;justify-content:center;
    width:34px;height:34px;border-radius:10px;background:var(--primary-soft);
    color:var(--primary-dark);font-size:14px;font-weight:800;
  }
  .block-card h3{margin-top:14px;font-size:18px;font-weight:700;}
  .block-card p{margin-top:10px;font-size:14.5px;line-height:1.85;color:var(--text-2);}

  /* ============ 深色指标带 ============ */
  .metrics{
    background:var(--secondary);color:#fff;position:relative;overflow:hidden;
    padding:72px 0 64px;
  }
  .metrics::after{
    content:"";position:absolute;left:0;right:0;bottom:24px;height:0;
    border-top:2px dashed rgba(255,255,255,.14);
  }
  .metric{text-align:left;}
  .metric .val{
    font-family:"Inter",system-ui,sans-serif;font-variant-numeric:tabular-nums;
    font-size:clamp(40px,5vw,56px);line-height:1.05;font-weight:800;letter-spacing:-.02em;
    color:#fff;
  }
  .metric .val em{font-style:normal;font-size:.5em;color:var(--accent);margin-left:4px;}
  .metric .lab{margin-top:10px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.7;}

  /* ============ 场景大卡 ============ */
  .scene-card{
    overflow:hidden;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);box-shadow:var(--sh-sm);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--primary-soft);}
  .scene-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
  .scene-card .scene-body{padding:24px;}
  .scene-card h3{font-size:19px;font-weight:700;}
  .scene-card p{margin-top:10px;font-size:14.5px;line-height:1.85;color:var(--text-2);}
  .tick-list{margin-top:16px;display:grid;gap:8px;}
  .tick-list li{position:relative;padding-left:18px;font-size:14px;color:var(--text-2);line-height:1.8;}
  .tick-list li::before{
    content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--primary);
  }

  /* ============ FAQ ============ */
  .faq-list{max-width:820px;margin:40px auto 0;display:grid;gap:12px;}
  .faq-item{
    background:var(--surface);border:1px solid var(--line);border-radius:16px;
    box-shadow:var(--sh-sm);overflow:hidden;border-left:3px solid transparent;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item:hover{box-shadow:var(--sh-md);}
  .faq-item[open]{border-left-color:var(--primary);}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 22px;font-size:16.5px;font-weight:600;color:var(--text);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item .faq-icon{
    flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
    width:28px;height:28px;border-radius:50%;border:1px solid var(--line);color:var(--text-2);
    transition:transform .25s ease,color .25s ease,border-color .25s ease;
  }
  .faq-item[open] .faq-icon{transform:rotate(180deg);color:var(--primary-dark);border-color:var(--primary-soft);}
  .faq-item .faq-ans{padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--text-2);}

  /* ============ CTA 带 ============ */
  .cta-band{
    position:relative;overflow:hidden;background:var(--secondary);
    padding:64px 0;color:#fff;
  }
  .cta-band img.cta-bg{
    position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.22;
  }
  .cta-band .cta-inner{position:relative;z-index:1;}
  .cta-band h2{font-size:clamp(24px,3vw,34px);line-height:1.3;font-weight:800;letter-spacing:-.01em;}
  .cta-band p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.72);max-width:560px;}

  /* ============ 页脚链接 ============ */
  .foot-link{color:rgba(255,255,255,.62);transition:color .2s ease,text-decoration-color .2s ease;}
  .foot-link:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}