/* roulang page: index */
:root{
  --c-primary:#E2402B;
  --c-primary-dark:#B92F1D;
  --c-primary-soft:#FCEBE7;
  --c-accent:#FFC53D;
  --c-deep:#0F3D33;
  --c-ink:#191C20;
  --c-body:#33383F;
  --c-muted:#7A756E;
  --c-line:#E8E3DB;
  --c-bg:#FAF8F4;
  --c-surface:#FFFFFF;
  --c-ok:#1F8A5B;
  --c-warn:#D98A00;
  --c-err:#C4362A;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(25,28,32,.06);
  --sh-2:0 10px 30px -14px rgba(25,28,32,.22);
  --sh-3:0 24px 60px -24px rgba(15,61,51,.35);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:88px;
  --t:.18s ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-body);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--c-primary-dark)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:-.3px}
h1{font-size:40px;line-height:1.25}
h2{font-size:30px;line-height:1.3}
h3{font-size:21px;line-height:1.4;font-weight:600}
p{margin:0 0 1.3em}
p:last-child{margin-bottom:0}
::selection{background:var(--c-primary);color:#fff}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:var(--r-sm)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-weight:700}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.sec-head{margin-bottom:36px}
.sec-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:var(--c-primary);font-weight:700;margin-bottom:12px}
.sec-tag::before{content:"";width:18px;height:2px;background:var(--c-primary);border-radius:2px}
.sec-title{position:relative;padding-left:16px}
.sec-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--c-primary)}
.sec-desc{margin-top:12px;color:var(--c-muted);font-size:15px;line-height:1.75;max-width:760px}
.grid{display:grid;gap:24px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);font-weight:600;font-size:16px;
  border:1.5px solid transparent;transition:all var(--t);white-space:nowrap;line-height:1.2;
}
.btn i{font-size:14px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.62)}
.btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-1px)}
.btn-outline{background:#fff;color:var(--c-ink);border-color:var(--c-line)}
.btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px)}
.btn-accent{background:var(--c-accent);color:#3A2B00}
.btn-accent:hover{background:#F0B325;color:#3A2B00;transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14.5px}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}

/* 徽章 */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);font-size:13px;font-weight:600;line-height:1.6}
.badge-soft{background:var(--c-primary-soft);color:var(--c-primary)}
.badge-line{border:1px solid var(--c-line);color:var(--c-muted);background:#fff}
.badge-accent{background:rgba(255,197,61,.22);color:#8A6100}

/* 顶部条 + 导航 */
.site-header{position:sticky;top:0;z-index:60}
.topbar{background:var(--c-deep);color:rgba(255,255,255,.86);font-size:13px;height:34px;display:flex;align-items:center}
.topbar .container{display:flex;align-items:center;justify-content:space-between;width:100%}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:18px}
.topbar a{color:rgba(255,255,255,.86)}
.topbar a:hover{color:var(--c-accent)}
.topbar i{color:var(--c-accent);margin-right:6px}
.navbar{background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--c-line);transition:box-shadow var(--t)}
.site-header.scrolled .navbar{box-shadow:var(--sh-1)}
.navbar-wrap{position:relative}
.navbar-inner{display:flex;align-items:center;gap:24px;height:76px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));position:relative;flex:0 0 auto;box-shadow:var(--sh-1)}
.brand-mark::before{content:"";position:absolute;inset:9px 8px;border:2px solid rgba(255,255,255,.92);border-radius:50% 50% 50% 50%/60% 60% 40% 40%;border-bottom-color:transparent;border-left-color:rgba(255,255,255,.5)}
.brand-mark::after{content:"";position:absolute;left:50%;bottom:8px;transform:translateX(-50%);width:12px;height:2px;background:var(--c-accent);border-radius:2px}
.brand-text{font-size:19px;font-weight:700;color:var(--c-ink);letter-spacing:-.2px;line-height:1.2}
.brand-short{display:none}
.nav-search{flex:1 1 auto;max-width:560px;position:relative;margin:0 auto}
.nav-search input{
  width:100%;height:46px;border-radius:var(--r-pill);border:1.5px solid var(--c-line);
  background:#fff;padding:0 20px 0 46px;font-size:15px;transition:all var(--t);
}
.nav-search input::placeholder{color:#9C968E}
.nav-search input:hover{border-color:#D8D1C7}
.nav-search input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(226,64,43,.12)}
.nav-search .search-icon{position:absolute;left:18px;top:50%;transform:translateY(-50%);font-size:15px;color:var(--c-muted);pointer-events:none}
.nav-search .search-icon svg{display:block}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.cat-strip-wrap{position:relative;border-bottom:1px solid var(--c-line);background:rgba(255,255,255,.96)}
.cat-strip-wrap::after{content:"";position:absolute;right:0;top:0;bottom:1px;width:44px;background:linear-gradient(90deg,rgba(255,255,255,0),#fff);pointer-events:none}
.cat-strip{display:flex;gap:10px;align-items:center;overflow-x:auto;padding:10px 24px 12px;scrollbar-width:none}
.cat-strip::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;padding:8px 18px;border-radius:var(--r-pill);border:1.5px solid var(--c-line);
  font-size:14.5px;color:var(--c-body);background:#fff;transition:all var(--t);font-weight:500;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px)}
.chip.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-md);border:1.5px solid var(--c-line);align-items:center;justify-content:center;font-size:17px;color:var(--c-ink);background:#fff}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* 抽屉 */
.drawer{position:fixed;inset:0;z-index:90;background:var(--c-surface);transform:translateX(100%);transition:transform .22s ease-out;display:flex;flex-direction:column;overflow-y:auto}
.drawer.open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:42px;height:42px;border-radius:var(--r-md);border:1.5px solid var(--c-line);display:flex;align-items:center;justify-content:center;font-size:17px}
.drawer-body{padding:22px 20px 40px;display:flex;flex-direction:column;gap:20px}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-links a{padding:14px 4px;border-bottom:1px solid var(--c-line);color:var(--c-ink);font-size:16.5px;font-weight:600}
.drawer-links a.active{color:var(--c-primary)}
.drawer-search{position:relative}
.drawer-search input{width:100%;height:48px;border-radius:var(--r-pill);border:1.5px solid var(--c-line);padding:0 20px 0 46px;font-size:15px}
.drawer-search .search-icon{position:absolute;left:18px;top:50%;transform:translateY(-50%);color:var(--c-muted)}
.drawer-note{font-size:13px;color:var(--c-muted);line-height:1.7}

/* 倒计时条 */
.countdown-bar{background:var(--c-deep);color:#fff;padding:16px 0}
.countdown-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.countdown-text{display:flex;align-items:center;gap:12px;font-size:15px}
.countdown-text strong{font-size:16px;color:#fff}
.countdown-text span{color:rgba(255,255,255,.72);font-size:14px}
.cd-clock{display:flex;align-items:center;gap:8px}
.cd-unit{display:flex;align-items:center;gap:6px;font-size:13px;color:rgba(255,255,255,.66)}
.cd-num{
  display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:38px;padding:0 8px;
  border-radius:var(--r-sm);background:rgba(255,255,255,.1);font-size:20px;font-weight:700;
  font-variant-numeric:tabular-nums;color:var(--c-accent);letter-spacing:.5px;
}
.cd-sep{color:rgba(255,255,255,.5);font-weight:700}

/* Hero */
.hero{
  position:relative;color:#fff;
  background:linear-gradient(90deg,rgba(15,61,51,.95) 0%,rgba(15,61,51,.78) 46%,rgba(15,61,51,.32) 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:96px 0 76px;
}
.hero-inner{max-width:620px;position:relative;z-index:2}
.hero-brand{display:inline-flex;align-items:center;gap:10px;padding:7px 16px;border-radius:var(--r-pill);background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);font-size:14px;font-weight:600;margin-bottom:22px}
.hero-brand i{color:var(--c-accent)}
.hero h1{color:#fff;font-size:40px;line-height:1.25;text-shadow:0 2px 18px rgba(0,0,0,.28)}
.hero h1 em{font-style:normal;color:var(--c-accent)}
.hero-sub{margin-top:18px;font-size:18px;line-height:1.85;color:rgba(255,255,255,.9);max-width:560px}
.hero-cta{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero-stats{
  margin-top:52px;display:flex;gap:40px;flex-wrap:wrap;padding-top:26px;border-top:1px solid rgba(255,255,255,.22)
}
.hero-stat b{display:block;font-size:30px;font-variant-numeric:tabular-nums;color:var(--c-accent);line-height:1.2}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.76)}

/* 卖点条带 */
.strip{padding:88px 0}
.strip-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 48px}
.strip-item{display:flex;gap:20px;padding:26px 24px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);transition:all var(--t)}
.strip-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:transparent}
.strip-item:nth-child(even){transform:translateY(18px)}
.strip-item:nth-child(even):hover{transform:translateY(16px)}
.strip-no{
  flex:0 0 auto;width:48px;height:48px;border-radius:50%;border:2px solid var(--c-primary);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-weight:700;
  font-size:17px;font-variant-numeric:tabular-nums;
}
.strip-item h3{margin-bottom:8px}
.strip-item p{color:var(--c-muted);font-size:15px;line-height:1.8}

/* 图墙 */
.gallery{padding:88px 0;background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.bento{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:150px;gap:16px}
.bento-card{position:relative;overflow:hidden;border-radius:var(--r-lg);background:var(--c-primary-soft);display:block}
.bento-card img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.bento-card:hover img{transform:scale(1.02)}
.bento-a{grid-area:1/1/3/3}
.bento-b{grid-area:1/3/2/4}
.bento-c{grid-area:1/4/2/5}
.bento-d{grid-area:2/3/3/4}
.bento-e{grid-area:2/4/3/5}
.bento-f{grid-area:3/1/4/5}
.bento-caption{
  position:absolute;left:0;right:0;bottom:0;padding:34px 18px 16px;
  background:linear-gradient(180deg,rgba(15,61,51,0),rgba(15,61,51,.88));
  color:#fff;font-size:14.5px;font-weight:500;opacity:0;transform:translateY(8px);transition:all .22s ease-out;
}
.bento-card:hover .bento-caption{opacity:1;transform:translateY(0)}
.bento-badge{position:absolute;left:14px;top:14px;padding:4px 12px;border-radius:var(--r-pill);background:rgba(255,255,255,.9);color:var(--c-primary);font-size:12.5px;font-weight:600}

/* 资讯列表 */
.posts{padding:88px 0}
.posts-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;transition:all var(--t);display:flex;flex-direction:column}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:transparent}
.post-cover{position:relative;display:block;aspect-ratio:16/9;background:var(--c-primary-soft);overflow:hidden}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.post-card:hover .post-cover img{transform:scale(1.03)}
.post-badge{position:absolute;left:12px;top:12px;padding:3px 11px;border-radius:var(--r-pill);background:rgba(255,255,255,.9);color:var(--c-primary);font-size:12.5px;font-weight:600}
.post-body{padding:18px 18px 16px;display:flex;flex-direction:column;flex:1}
.post-title{font-size:18px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-title a{color:var(--c-ink)}
.post-title a:hover{color:var(--c-primary)}
.post-excerpt{color:var(--c-muted);font-size:14px;line-height:1.75;margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:14px;border-top:1px solid var(--c-line);font-size:13.5px;color:var(--c-muted)}
.post-arrow{width:30px;height:30px;border-radius:50%;border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;color:var(--c-muted);transition:all var(--t)}
.post-card:hover .post-arrow{transform:translateX(4px);color:var(--c-primary);border-color:var(--c-primary)}
.empty-state{text-align:center;padding:64px 24px;border:1px dashed var(--c-line);border-radius:var(--r-lg);background:#fff}
.empty-state i{font-size:30px;color:var(--c-muted);margin-bottom:16px;display:block}
.empty-state p{color:var(--c-muted);margin-bottom:20px}
.skeleton-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.sk-card{border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;background:#fff}
.sk-img{aspect-ratio:16/9;background:#EFEBE4}
.sk-line{height:13px;border-radius:6px;background:#EFEBE4;margin:14px 18px}
.sk-line.short{width:45%}
.sk-anim{background:linear-gradient(90deg,#EFEBE4 25%,#F7F4EF 37%,#EFEBE4 63%);background-size:400% 100%;animation:sk 1.4s ease-in-out infinite}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* 数据与口碑 */
.trust{padding:88px 0;background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.trust-wrap{display:grid;grid-template-columns:0.9fr 1.1fr;gap:48px;align-items:start}
.data-list{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.data-item{background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:20px}
.data-item b{display:block;font-size:28px;font-variant-numeric:tabular-nums;color:var(--c-primary);line-height:1.25}
.data-item span{font-size:13.5px;color:var(--c-muted);display:block;margin-top:6px}
.quote-list{display:grid;gap:18px}
.quote{background:var(--c-bg);border-left:4px solid var(--c-primary);border-radius:0 var(--r-md) var(--r-md) 0;padding:20px 24px}
.quote p{font-size:15.5px;line-height:1.85;color:var(--c-body);margin-bottom:12px}
.quote-by{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--c-muted)}
.quote-avatar{width:30px;height:30px;border-radius:50%;background:var(--c-deep);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}

/* CTA 表单 */
.cta{background:var(--c-deep);color:#fff;padding:88px 0}
.cta-wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:start}
.cta h2{color:#fff}
.cta-lead{color:rgba(255,255,255,.84);font-size:16px;line-height:1.85;margin-top:14px;max-width:460px}
.benefits{margin-top:30px;display:grid;gap:16px}
.benefit{display:flex;gap:14px;align-items:flex-start}
.benefit i{color:var(--c-accent);font-size:17px;margin-top:5px}
.benefit b{display:block;font-size:16.5px;color:#fff;font-weight:600}
.benefit span{font-size:14px;color:rgba(255,255,255,.7);line-height:1.75}
.form-card{background:#fff;border-radius:var(--r-lg);padding:30px;box-shadow:var(--sh-3);color:var(--c-body)}
.form-card h3{font-size:20px;margin-bottom:6px}
.form-hint{font-size:13.5px;color:var(--c-muted);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.field input,.field select{
  width:100%;height:46px;border-radius:var(--r-md);border:1.5px solid var(--c-line);
  padding:0 14px;background:#fff;font-size:15px;transition:all var(--t);
}
.field input:focus,.field select:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(226,64,43,.12)}
.field.error input,.field.error select{border-color:var(--c-err)}
.field-error{display:none;font-size:13px;color:var(--c-err);margin-top:6px;line-height:1.6}
.field.error .field-error{display:block}
.form-ok{display:none;align-items:center;gap:10px;background:#EAF7F0;border:1px solid #BFE7D2;color:var(--c-ok);border-radius:var(--r-md);padding:12px 14px;font-size:14px;margin-bottom:16px}
.form-ok.show{display:flex}
.form-note{font-size:12.5px;color:var(--c-muted);line-height:1.7;margin-top:14px;text-align:center}

/* FAQ */
.faq{padding:88px 0}
.faq-wrap{display:grid;grid-template-columns:.62fr 1.38fr;gap:48px;align-items:start}
.faq-list{border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;padding:22px 4px;font-size:17px;font-weight:600;color:var(--c-ink);transition:color var(--t)}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .2s ease-out}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.open .faq-icon::after{transform:scaleY(0)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .22s ease-out}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a p{font-size:16px;line-height:1.85;color:var(--c-body);padding:0 4px 24px;margin:0}

/* 页脚 */
.footer{background:var(--c-deep);color:rgba(255,255,255,.78);padding:64px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer h4{color:#fff;font-size:15.5px;margin-bottom:18px;font-weight:600}
.footer p{line-height:1.85;color:rgba(255,255,255,.7);margin-bottom:14px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-links{display:grid;gap:12px}
.footer-links a{color:rgba(255,255,255,.78)}
.footer-links a:hover{color:var(--c-accent);text-decoration:underline}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px;line-height:1.7}
.footer-contact i{color:var(--c-accent);margin-top:6px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:18px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.62)}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:var(--c-accent)}

/* 响应式 */
@media (max-width:1199px){
  h1,.hero h1{font-size:34px}
  h2{font-size:26px}
  .section,.strip,.gallery,.posts,.trust,.cta,.faq{padding:64px 0}
  .hero{padding:80px 0 62px}
  .bento{grid-auto-rows:132px}
  .trust-wrap,.cta-wrap,.faq-wrap{grid-template-columns:1fr;gap:36px}
}
@media (max-width:991px){
  .post-grid,.skeleton-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .strip-grid{grid-template-columns:1fr;gap:18px}
  .strip-item:nth-child(even){transform:none}
  .strip-item:nth-child(even):hover{transform:translateY(-2px)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.85}
  .container{padding:0 16px}
  .topbar{display:none}
  .navbar-inner{flex-wrap:wrap;height:auto;padding:12px 0;gap:12px}
  .nav-search{order:3;flex:0 0 100%;max-width:none;margin:0}
  .nav-actions{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  h1,.hero h1{font-size:26px}
  h2{font-size:22px}
  h3{font-size:17px}
  .section,.strip,.gallery,.posts,.trust,.cta,.faq{padding:48px 0}
  .hero{padding:56px 0 48px}
  .hero-sub{font-size:16px}
  .hero-stats{gap:22px;margin-top:34px}
  .hero-stat b{font-size:24px}
  .bento{grid-template-columns:repeat(2,1fr);grid-auto-rows:140px}
  .bento-a,.bento-b,.bento-c,.bento-d,.bento-e,.bento-f{grid-area:auto}
  .bento-a,.bento-f{grid-column:span 2;grid-row:span 2}
  .bento-caption{opacity:1;transform:none;font-size:13px;padding:26px 12px 12px}
  .post-grid,.skeleton-grid{grid-template-columns:1fr}
  .countdown-inner{flex-direction:column;align-items:flex-start;gap:12px}
  .cd-num{min-width:34px;height:34px;font-size:18px}
  .posts-head{flex-direction:column;align-items:flex-start}
  .form-card{padding:22px}
  .footer{padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:0;padding-bottom:20px}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.14);padding:16px 0}
  .footer-col h4{margin-bottom:12px;position:relative;padding-right:24px;cursor:pointer}
  .footer-col h4::after{content:"\f107";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;right:0;top:0;color:var(--c-accent);transition:transform .2s ease-out}
  .footer-col.open h4::after{transform:rotate(180deg)}
  .footer-col .footer-body{display:none}
  .footer-col.open .footer-body{display:block}
}
@media (max-width:480px){
  .brand-full{display:none}
  .brand-short{display:inline}
  .brand-text{font-size:17px}
  .brand-mark{width:34px;height:34px}
  .hero-cta .btn{width:100%}
  .data-list{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --c-primary:#E2402B;
  --c-primary-dark:#B92F1D;
  --c-primary-soft:#FCEBE7;
  --c-accent:#FFC53D;
  --c-deep:#0F3D33;
  --c-ink:#191C20;
  --c-body:#33383F;
  --c-muted:#7A756E;
  --c-line:#E8E3DB;
  --c-bg:#FAF8F4;
  --c-surface:#FFFFFF;
  --c-ok:#1F8A5B;
  --c-warn:#D98A00;
  --c-err:#C4362A;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(25,28,32,.06);
  --sh-2:0 10px 30px -14px rgba(25,28,32,.22);
  --sh-3:0 24px 60px -24px rgba(15,61,51,.35);
  --ease:.18s ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;line-height:1.9;color:var(--c-body);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease)}
a:hover{color:var(--c-primary-dark)}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700}
p{margin:0}
ul,ol{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--c-deep);color:rgba(255,255,255,.85);font-size:13px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:34px;gap:16px}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:20px;white-space:nowrap}
.topbar-left i,.topbar-right i{margin-right:6px;color:var(--c-accent)}
.topbar a{color:rgba(255,255,255,.85);font-size:13px}
.topbar a:hover{color:var(--c-accent);text-decoration:underline}

/* ============ 主导航 ============ */
.site-header{position:relative;z-index:100}
.navbar{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.97);backdrop-filter:blur(8px);border-bottom:1px solid var(--c-line);transition:box-shadow var(--ease)}
.navbar.is-stuck{box-shadow:var(--sh-1)}
.navbar-inner{display:flex;align-items:center;gap:24px;height:74px;flex-wrap:nowrap}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--c-primary),#F5764F);position:relative;flex:0 0 auto;box-shadow:0 6px 14px -8px rgba(226,64,43,.9)}
.brand-mark::after{content:"";position:absolute;inset:9px;border-radius:50%;border:3px solid #fff;border-right-color:transparent;transform:rotate(-32deg)}
.brand-text{font-weight:700;color:var(--c-ink);font-size:17px;letter-spacing:-.2px;white-space:nowrap}
.brand-short{display:none}
.nav-search{position:relative;flex:1 1 auto;max-width:540px;margin:0 auto}
.nav-search input{
  width:100%;height:44px;border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:var(--c-bg);padding:0 20px 0 44px;font-size:14px;color:var(--c-ink);
  transition:var(--ease);
}
.nav-search input::placeholder{color:#A9A29A}
.nav-search input:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(226,64,43,.12)}
.search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--c-muted);display:flex;pointer-events:none}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--r-md);border:1px solid var(--c-line);align-items:center;justify-content:center;color:var(--c-ink);background:#fff}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);border:1px solid transparent;font-weight:600;cursor:pointer;transition:var(--ease);white-space:nowrap}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.btn[disabled],.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}

/* 分类胶囊条 */
.cat-strip-wrap{background:#fff;border-bottom:1px solid var(--c-line)}
.cat-strip{display:flex;align-items:center;gap:10px;height:52px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.cat-strip::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;height:32px;display:inline-flex;align-items:center;padding:0 15px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:#fff;font-size:13px;color:var(--c-body);transition:var(--ease)}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary)}
.chip.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}

/* ============ 面包屑 ============ */
.crumb-bar{padding:22px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted)}
.breadcrumb a{color:var(--c-muted)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#C9C2B8}
.breadcrumb .cur{color:var(--c-body);max-width:560px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头 ============ */
.article-head{max-width:820px;margin:0 auto;padding:28px 0 0}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.2px}
.badge-primary{background:var(--c-primary-soft);color:var(--c-primary)}
.article-head h1{font-size:40px;line-height:1.25;letter-spacing:-.3px;margin:18px 0 20px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;font-size:14px;color:var(--c-muted);padding-bottom:22px;border-bottom:1px solid var(--c-line)}
.article-meta i{margin-right:6px;color:#B5AEA5}

/* ============ 正文布局 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;max-width:1120px;margin:0 auto;padding:44px 0 0;align-items:start}
.article-main{max-width:760px;width:100%;margin:0 auto;min-width:0}

.article-body{font-size:17px;line-height:1.9;color:var(--c-body);word-wrap:break-word}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.3em}
.article-body h2{font-size:30px;line-height:1.3;font-weight:700;margin:2.4em 0 .9em;position:relative;padding-left:18px;scroll-margin-top:110px}
.article-body h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--c-primary)}
.article-body h3{font-size:21px;font-weight:600;margin:1.8em 0 .7em;scroll-margin-top:110px}
.article-body h4{font-size:18px;font-weight:600;margin:1.5em 0 .6em}
.article-body ul,.article-body ol{padding-left:1.45em;margin:0 0 1.3em}
.article-body li{margin:.5em 0}
.article-body ul li::marker{color:var(--c-primary)}
.article-body ol li::marker{color:var(--c-primary);font-weight:700}
.article-body blockquote{margin:1.7em 0;padding:16px 24px;background:var(--c-primary-soft);border-left:4px solid var(--c-primary);border-radius:0 var(--r-md) var(--r-md) 0;color:#5C4A45;font-size:16px}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:1.7em auto;box-shadow:var(--sh-1);height:auto}
.article-body figure{margin:1.7em 0}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px;line-height:1.7}
.article-body table{width:100%;border-collapse:collapse;margin:1.7em 0;font-size:15px;background:#fff}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:11px 14px;text-align:left;vertical-align:top}
.article-body th{background:var(--c-bg);color:var(--c-ink);font-weight:600}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--c-primary-dark)}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2.2em 0}
.article-body code{background:#F2EEE8;padding:2px 6px;border-radius:6px;font-size:.92em;color:#A63A25}

/* 标签 */
.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:44px 0 0;padding-top:26px;border-top:1px solid var(--c-line)}
.tag-label{font-size:14px;color:var(--c-muted);margin-right:2px}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);background:var(--c-surface);border:1px solid var(--c-line);font-size:13px;color:var(--c-body)}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}

/* 空态 */
.empty-state{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:60px 24px;text-align:center;box-shadow:var(--sh-1)}
.empty-icon{width:60px;height:60px;margin:0 auto 18px;border-radius:50%;background:var(--c-primary-soft);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:22px}
.empty-state p{font-size:16px;color:var(--c-muted);margin-bottom:20px}

/* 侧栏 */
.article-side{position:sticky;top:100px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh-1)}
.side-card h3{font-size:15px;font-weight:700;margin:0 0 14px;display:flex;align-items:center;gap:9px}
.side-card h3::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--c-primary);flex:0 0 auto}
.toc-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px;max-height:340px;overflow:auto}
.toc-list a{display:block;font-size:13px;line-height:1.6;color:var(--c-body);padding:7px 10px;border-left:2px solid transparent;border-radius:0 var(--r-sm) var(--r-sm) 0}
.toc-list a:hover{background:var(--c-bg);color:var(--c-primary)}
.toc-list a.lvl-3{padding-left:24px;font-size:13px;color:var(--c-muted)}
.toc-list a.active{color:var(--c-primary);border-left-color:var(--c-primary);background:var(--c-primary-soft);font-weight:600}
.side-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;color:var(--c-body);padding:11px 12px;border:1px solid var(--c-line);border-radius:var(--r-md);transition:var(--ease)}
.side-links a:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);transform:translateX(2px)}
.side-links i{font-size:12px;color:var(--c-muted)}
.side-links a:hover i{color:var(--c-primary)}
.side-note{font-size:13px;color:var(--c-muted);line-height:1.75;margin-top:12px}

/* 继续浏览 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:36px}
.post-nav-item{display:flex;flex-direction:column;gap:6px;padding:18px 20px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);transition:var(--ease)}
.post-nav-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#DED7CC}
.post-nav-item .pn-dir{font-size:12px;color:var(--c-muted)}
.post-nav-item .pn-title{font-size:15px;font-weight:600;color:var(--c-ink);line-height:1.6}
.post-nav-item:hover .pn-title{color:var(--c-primary)}

/* ============ 延伸阅读 ============ */
.related{padding:72px 0 88px}
.section-head{margin-bottom:28px}
.section-head h2{font-size:30px;line-height:1.3;position:relative;padding-left:18px}
.section-head h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--c-primary)}
.section-head p{margin-top:10px;font-size:15px;color:var(--c-muted);max-width:640px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;display:flex;flex-direction:column;transition:var(--ease);box-shadow:var(--sh-1)}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#F1EDE6}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-badge{position:absolute;left:12px;top:12px;height:26px;display:inline-flex;align-items:center;padding:0 11px;border-radius:var(--r-pill);background:rgba(255,255,255,.9);color:var(--c-primary);font-size:12px;font-weight:600;backdrop-filter:blur(4px)}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:18px;line-height:1.55;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover .news-body h3{color:var(--c-primary)}
.news-body p{font-size:14px;line-height:1.75;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:12px;border-top:1px dashed var(--c-line);font-size:13px;color:var(--c-muted)}
.news-foot .arrow{transition:var(--ease);color:var(--c-muted)}
.news-card:hover .news-foot .arrow{transform:translateX(4px);color:var(--c-primary)}

/* ============ 页脚 ============ */
.footer{background:var(--c-deep);color:rgba(255,255,255,.8);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer h4{color:#fff;font-size:16px;font-weight:700;margin:0 0 16px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--c-primary),#F5764F);position:relative;flex:0 0 auto}
.footer-brand .brand-mark::after{content:"";position:absolute;inset:8px;border-radius:50%;border:3px solid #fff;border-right-color:transparent;transform:rotate(-32deg)}
.footer-brand .brand-text{color:#fff;font-weight:700;font-size:17px}
.footer-body p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);margin:0 0 10px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.78)}
.footer-links a:hover{color:var(--c-accent);text-decoration:underline}
.footer-contact{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px;font-size:14px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.78);line-height:1.7}
.footer-contact i{color:var(--c-accent);margin-top:6px;flex:0 0 auto}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:rgba(255,255,255,.58)}

/* ============ 移动抽屉 ============ */
.drawer{position:fixed;inset:0;background:#fff;z-index:300;display:flex;flex-direction:column;padding:18px 20px 32px;overflow-y:auto;transform:translateX(102%);transition:transform .26s ease-out;visibility:hidden}
.drawer.open{transform:translateX(0);visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-title{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--c-ink)}
.drawer-close{width:40px;height:40px;border-radius:var(--r-md);border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;color:var(--c-ink);background:#fff}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary)}
.drawer .nav-search{max-width:none;margin:0 0 22px}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{padding:15px 2px;border-bottom:1px solid var(--c-line);color:var(--c-ink);font-size:15px;display:flex;align-items:center;justify-content:space-between}
.drawer-nav a:hover{color:var(--c-primary)}
.drawer-nav i{font-size:12px;color:var(--c-muted)}
body.drawer-open{overflow:hidden}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .article-head h1{font-size:34px}
  .article-layout{gap:40px}
}
@media (max-width:991px){
  .article-head h1{font-size:34px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px}
  .article-side{position:static;top:auto}
  .article-main{max-width:100%}
  .toc-list{max-height:none}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-body h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 16px}
  .topbar{display:none}
  .navbar-inner{flex-wrap:wrap;height:auto;padding:12px 0;gap:12px}
  .nav-search{order:3;flex:1 1 100%;max-width:none;margin:0}
  .nav-actions{display:none}
  .nav-toggle{display:flex;order:2;margin-left:auto}
  .cat-strip{height:48px}
  .crumb-bar{padding:16px 0 0}
  .breadcrumb .cur{max-width:200px}
  .article-head{padding:20px 0 0}
  .article-head h1{font-size:26px;margin:14px 0 16px}
  .article-meta{gap:6px 14px;font-size:13px;padding-bottom:18px}
  .article-layout{padding:28px 0 0}
  .article-body{font-size:16px;line-height:1.9}
  .article-body h2{font-size:22px;padding-left:14px;margin:2em 0 .8em}
  .article-body h3{font-size:18px}
  .article-body table{font-size:14px;display:block;overflow-x:auto;white-space:nowrap}
  .post-nav{grid-template-columns:1fr;gap:12px}
  .related{padding:48px 0 56px}
  .section-head h2{font-size:22px;padding-left:14px}
  .related-grid{grid-template-columns:1fr;gap:16px}
  .footer{padding-top:32px}
  .footer-grid{grid-template-columns:1fr;gap:0;padding-bottom:20px}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.14);padding:16px 0}
  .footer-col h4{margin:0;display:flex;align-items:center;justify-content:space-between;cursor:pointer}
  .footer-col h4::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:rgba(255,255,255,.55);transition:transform var(--ease)}
  .footer-col.open h4::after{transform:rotate(45deg)}
  .footer-col .footer-body{display:none;padding-top:14px}
  .footer-col.open .footer-body{display:block}
  .footer-bottom{flex-direction:column;justify-content:center;text-align:center;gap:6px}
}
@media (max-width:480px){
  .brand-full{display:none}
  .brand-short{display:inline}
  .article-head h1{font-size:24px}
  .news-body h3{font-size:17px}
}

/* roulang page: category1 */
:root{
  --c-primary:#E2402B;
  --c-primary-dark:#B92F1D;
  --c-primary-soft:#FCEBE7;
  --c-accent:#FFC53D;
  --c-deep:#0F3D33;
  --c-ink:#191C20;
  --c-body:#33383F;
  --c-muted:#7A756E;
  --c-line:#E8E3DB;
  --c-bg:#FAF8F4;
  --c-surface:#FFFFFF;
  --c-ok:#1F8A5B;
  --c-warn:#D98A00;
  --c-err:#C4362A;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(25,28,32,.06);
  --sh-2:0 10px 30px -14px rgba(25,28,32,.22);
  --sh-3:0 24px 60px -24px rgba(15,61,51,.35);
  --t:.18s ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--c-body);
  background:var(--c-bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--t),background var(--t),border-color var(--t)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--c-deep);color:rgba(255,255,255,.88);font-size:13px;height:34px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:34px}
.topbar-left{display:flex;gap:22px;align-items:center}
.topbar-left i{margin-right:6px;color:var(--c-accent)}
.topbar-right{display:flex;gap:20px;align-items:center}
.topbar-right a{color:rgba(255,255,255,.88)}
.topbar-right a:hover{color:var(--c-accent)}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:90}
.navbar{background:var(--c-surface);border-bottom:1px solid var(--c-line);transition:box-shadow var(--t)}
.site-header.scrolled .navbar{box-shadow:var(--sh-1)}
.navbar-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{position:relative;width:28px;height:28px;border-radius:9px;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));flex:0 0 auto}
.brand-mark::after{content:"";position:absolute;inset:7px 6px;border:2px solid rgba(255,255,255,.9);border-radius:999px 999px 4px 4px;border-bottom-color:transparent}
.brand-text{font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:-.2px;white-space:nowrap}
.brand-short{display:none}

.nav-search{
  position:relative;display:flex;align-items:center;gap:10px;
  flex:1 1 auto;max-width:540px;margin:0 auto;height:46px;padding:0 18px;
  background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-pill);
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.nav-search:focus-within{border-color:var(--c-primary);background:var(--c-surface);box-shadow:0 0 0 3px rgba(226,64,43,.12)}
.search-icon{display:flex;color:var(--c-muted);flex:0 0 auto}
.nav-search input{flex:1 1 auto;border:none;background:transparent;height:100%;outline:none;font-size:15px}
.nav-search input::placeholder{color:#A9A29A}

.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-md);color:var(--c-ink);font-size:18px;flex:0 0 auto}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background var(--t),color var(--t),transform var(--t),box-shadow var(--t),border-color var(--t);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:54px;padding:0 34px;font-size:16px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.65)}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btn-outline{background:var(--c-surface);color:var(--c-ink);border:1px solid var(--c-line)}
.btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}

/* ============ 分类胶囊条 ============ */
.cat-strip-wrap{background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.cat-strip{display:flex;gap:10px;overflow-x:auto;padding:12px 24px;scrollbar-width:none}
.cat-strip::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 18px;
  border:1px solid var(--c-line);border-radius:var(--r-pill);
  font-size:15px;color:var(--c-body);background:var(--c-surface);
  transition:all var(--t);
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary)}
.chip.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}

/* ============ 移动端抽屉 ============ */
.mobile-drawer{
  position:fixed;inset:0;z-index:200;background:var(--c-surface);
  display:flex;flex-direction:column;gap:20px;padding:20px 18px 34px;
  transform:translateY(-102%);transition:transform .28s ease;overflow-y:auto;
}
.mobile-drawer.open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:42px;height:42px;border:1px solid var(--c-line);border-radius:var(--r-md);font-size:18px;color:var(--c-ink)}
.drawer-title{font-size:13px;font-weight:700;color:var(--c-muted);letter-spacing:1px}
.drawer-chips{display:flex;flex-direction:column;gap:10px}
.drawer-chips .chip{width:100%;justify-content:flex-start;height:46px;font-size:16px}
.drawer-search{position:relative;display:flex;align-items:center;gap:10px;height:48px;padding:0 18px;background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-pill)}
.drawer-search input{flex:1;border:none;background:transparent;outline:none;font-size:15px}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:rgba(255,255,255,.78)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:#fff}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  background-image:linear-gradient(100deg,rgba(15,61,51,.94) 0%,rgba(15,61,51,.82) 42%,rgba(15,61,51,.38) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  padding:56px 0 52px;
  color:#fff;
}
.page-hero h1{
  font-size:40px;line-height:1.25;letter-spacing:-.3px;color:#fff;
  max-width:760px;margin:22px 0 0;
}
.page-hero .lede{max-width:640px;margin-top:18px;font-size:18px;line-height:1.85;color:rgba(255,255,255,.88)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;
  max-width:760px;margin-top:38px;padding-top:26px;border-top:1px solid rgba(255,255,255,.22);
}
.stat-num{font-size:29px;font-weight:700;line-height:1.2;font-variant-numeric:tabular-nums;color:#fff}
.stat-num small{font-size:14px;font-weight:600;margin-left:4px;color:rgba(255,255,255,.82)}
.stat-label{font-size:13px;color:rgba(255,255,255,.72);margin-top:4px;line-height:1.6}

/* ============ 主体布局 ============ */
.layout{
  display:grid;grid-template-columns:264px minmax(0,1fr);gap:48px;
  padding:64px 0 88px;align-items:start;
}
.toc{
  position:sticky;top:132px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:14px 0;box-shadow:var(--sh-1);
}
.toc-title{font-size:13px;font-weight:700;color:var(--c-muted);letter-spacing:1px;padding:0 18px 10px}
.toc a{
  display:block;padding:10px 18px;font-size:15px;color:var(--c-muted);
  border-left:3px solid transparent;transition:all var(--t);
}
.toc a:hover{color:var(--c-primary);background:#FBF6F4}
.toc a.active{color:var(--c-primary);font-weight:600;border-left-color:var(--c-primary);background:var(--c-primary-soft)}
.toc-foot{margin-top:12px;padding:14px 18px 4px;border-top:1px solid var(--c-line)}
.toc-foot p{margin:0;font-size:13px;color:var(--c-muted);line-height:1.7}

.content{min-width:0}
.block + .block{margin-top:64px}
.block > h2{
  font-size:30px;line-height:1.3;margin:0 0 .9em;padding-left:16px;
  border-left:4px solid var(--c-primary);
}
.block h3{font-size:21px;line-height:1.5;font-weight:600;margin:1.8em 0 .7em}
.block p{margin:0 0 1.3em;max-width:38em}
.block p:last-child{margin-bottom:0}
.lead-text{font-size:17px;color:var(--c-body)}

.check-list{list-style:none;margin:0 0 1.3em;display:grid;gap:12px}
.check-list li{position:relative;padding-left:30px;font-size:16px;line-height:1.8}
.check-list li::before{
  content:"";position:absolute;left:2px;top:12px;width:14px;height:8px;
  border-left:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
  transform:rotate(-45deg);border-radius:1px;
}

.figure{margin:0 0 1.6em;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:#F1EDE6}
.figure img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.figcaption{padding:12px 4px 0;font-size:13px;color:var(--c-muted);line-height:1.7}

/* 数据卡 */
.stat-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:0 0 1.6em}
.stat-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:22px 20px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t);
}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.stat-card .num{font-size:26px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.3}
.stat-card .num small{font-size:14px;margin-left:4px;color:var(--c-muted);font-weight:600}
.stat-card .txt{margin-top:6px;font-size:14px;color:var(--c-muted);line-height:1.7}

/* 表格 */
.table-wrap{
  border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;
  background:var(--c-surface);margin:0 0 1.4em;
}
.table-scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:15px;min-width:620px}
th{
  background:#F4F1EA;color:var(--c-ink);font-weight:600;text-align:left;
  padding:13px 18px;border-bottom:1px solid var(--c-line);white-space:nowrap;
}
td{padding:13px 18px;border-bottom:1px solid var(--c-line);color:var(--c-body);vertical-align:middle}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:#FDFBF8}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1}
.badge-ok{background:rgba(31,138,91,.12);color:var(--c-ok)}
.badge-warn{background:rgba(217,138,0,.14);color:var(--c-warn)}
.badge-soft{background:var(--c-primary-soft);color:var(--c-primary)}

/* 步骤 */
.steps{display:grid;gap:18px;margin:0 0 1.6em}
.step{display:flex;gap:16px;align-items:flex-start}
.step-num{
  flex:0 0 auto;width:36px;height:36px;border-radius:var(--r-pill);
  border:2px solid var(--c-primary);color:var(--c-primary);
  display:grid;place-items:center;font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
  background:var(--c-surface);
}
.step-body h4{font-size:17px;font-weight:600;margin:2px 0 4px}
.step-body p{margin:0;font-size:15px;color:var(--c-muted);line-height:1.8}

/* 提示块 */
.callout{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--c-primary-soft);border-left:4px solid var(--c-primary);
  border-radius:0 var(--r-md) var(--r-md) 0;padding:18px 22px;margin:0 0 1.4em;
}
.callout i{color:var(--c-primary);font-size:18px;margin-top:4px}
.callout p{margin:0;font-size:15px;line-height:1.85;color:var(--c-body)}
.callout.deep{background:#EDF3F1;border-left-color:var(--c-deep)}
.callout.deep i{color:var(--c-deep)}

/* 标签 */
.tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-pill);
  font-size:13px;color:var(--c-muted);transition:all var(--t);
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* ============ FAQ ============ */
.faq-block{border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;text-align:left;font-size:17px;font-weight:600;color:var(--c-ink);
  transition:color var(--t);
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease,opacity .22s ease;opacity:0}
.faq-item.open .faq-a{opacity:1}
.faq-a p{margin:0 0 22px;font-size:16px;line-height:1.85;color:var(--c-body);max-width:40em}

/* ============ CTA 条 ============ */
.cta-band{
  background:var(--c-deep);color:#fff;border-radius:var(--r-xl);
  padding:42px 44px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;box-shadow:var(--sh-3);
}
.cta-band h2{font-size:26px;color:#fff;line-height:1.35;margin:0 0 10px;padding:0;border:none}
.cta-band p{margin:0;font-size:15px;line-height:1.8;color:rgba(255,255,255,.78);max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto}
.cta-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.6)}

.back-links{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:34px}
.back-links .label{font-size:15px;color:var(--c-muted)}

/* ============ 页脚 ============ */
.footer{background:var(--c-deep);color:rgba(255,255,255,.82);padding:64px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff}
.footer-brand .brand-mark{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--c-accent),#F0A21B)}
.footer-brand .brand-mark::after{inset:6px 5px;border-color:rgba(15,61,51,.85);border-bottom-color:transparent}
.footer-col h4{font-size:16px;color:#fff;margin:0 0 16px;font-weight:600}
.footer-body p{margin:0 0 12px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.72)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.78);width:fit-content}
.footer-links a:hover{color:var(--c-accent);text-decoration:underline}
.footer-contact{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.78)}
.footer-contact i{color:var(--c-accent);margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-search{max-width:420px}
}
@media (max-width:991px){
  .container{padding:0 20px}
  .page-hero{padding:44px 0 42px}
  .page-hero h1{font-size:34px}
  .layout{grid-template-columns:1fr;gap:30px;padding:44px 0 64px}
  .toc{position:static;display:flex;gap:8px;overflow-x:auto;padding:10px;scrollbar-width:none}
  .toc::-webkit-scrollbar{display:none}
  .toc-title,.toc-foot{display:none}
  .toc a{flex:0 0 auto;white-space:nowrap;border-left:none;border-bottom:3px solid transparent;border-radius:8px 8px 0 0;padding:8px 14px}
  .toc a.active{border-left-color:transparent;border-bottom-color:var(--c-primary)}
  .block > h2{font-size:26px}
  .stat-cards{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 30px}
}
@media (max-width:767px){
  body{font-size:16px}
  .topbar{display:none}
  .navbar-inner{flex-wrap:wrap;height:auto;padding:12px 0;gap:12px}
  .brand{flex:1 1 auto}
  .nav-search{order:3;flex:1 0 100%;max-width:none;margin:0;height:44px}
  .nav-actions{display:none}
  .nav-toggle{display:grid;place-items:center}
  .cat-strip{padding:10px 20px}
  .page-hero h1{font-size:26px}
  .page-hero .lede{font-size:16px;margin-top:14px}
  .hero-stats{grid-template-columns:1fr 1fr;gap:18px;margin-top:28px;padding-top:20px}
  .stat-num{font-size:24px}
  .block + .block{margin-top:48px}
  .block > h2{font-size:22px;padding-left:12px;border-left-width:4px}
  .block h3{font-size:17px}
  .stat-cards{grid-template-columns:1fr;gap:14px}
  .footer{padding-top:44px;margin-top:64px}
  .footer-grid{grid-template-columns:1fr;gap:0}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.14)}
  .footer-col h4{margin:0;padding:18px 0;display:flex;align-items:center;justify-content:space-between;cursor:pointer}
  .footer-col h4::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--c-accent);transition:transform .2s ease}
  .footer-col.open h4::after{transform:rotate(45deg)}
  .footer-body{display:none;padding-bottom:18px}
  .footer-col.open .footer-body{display:block}
  .footer-brand{margin-bottom:16px}
  .footer-bottom{margin-top:30px;flex-direction:column;gap:6px}
  .cta-band{padding:28px 22px;border-radius:var(--r-lg)}
  .cta-band h2{font-size:21px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}
@media (max-width:480px){
  .container{padding:0 16px}
  .cat-strip{padding:10px 16px}
  .brand-full{display:none}
  .brand-short{display:inline}
  .brand-text{font-size:17px}
  .hero-stats{grid-template-columns:1fr 1fr;gap:14px}
  .page-hero h1{font-size:23px}
  .back-links .btn{width:100%}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --c-primary:#E2402B;
  --c-primary-dark:#B92F1D;
  --c-primary-soft:#FCEBE7;
  --c-accent:#FFC53D;
  --c-deep:#0F3D33;
  --c-deep-soft:#14503F;
  --c-ink:#191C20;
  --c-body:#33383F;
  --c-muted:#7A756E;
  --c-line:#E8E3DB;
  --c-bg:#FAF8F4;
  --c-surface:#FFFFFF;
  --c-ok:#1F8A5B;
  --c-warn:#D98A00;
  --c-err:#C4362A;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(25,28,32,.06);
  --sh-2:0 10px 30px -14px rgba(25,28,32,.22);
  --sh-3:0 24px 60px -24px rgba(15,61,51,.35);
  --ease:.18s ease-out;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
}
/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.9;
  color:var(--c-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease);}
a:hover{color:var(--c-primary-dark);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;}
p{margin:0 0 1.3em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);
  padding:13px 26px;
  font-size:16px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:background var(--ease),color var(--ease),transform var(--ease),border-color var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.72);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.btn-outline{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-line);}
.btn-outline:hover{border-color:var(--c-primary);background:var(--c-primary-soft);}
.btn-dark{background:var(--c-deep);color:#fff;}
.btn-dark:hover{background:var(--c-deep-soft);color:#fff;}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;}
/* ============ 顶部信息条 ============ */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);transition:box-shadow var(--ease);}
.site-header.scrolled{box-shadow:var(--sh-1);}
.topbar{background:var(--c-deep);color:rgba(255,255,255,.86);font-size:13px;line-height:34px;}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:20px;}
.topbar-left i{margin-right:6px;color:var(--c-accent);}
.topbar-right{display:flex;align-items:center;gap:18px;}
.topbar-right a{color:rgba(255,255,255,.86);}
.topbar-right a:hover{color:var(--c-accent);}
/* ============ 主导航 ============ */
.navbar{border-bottom:1px solid var(--c-line);background:var(--c-surface);}
.navbar-inner{display:flex;align-items:center;gap:24px;min-height:74px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:30px;height:30px;border-radius:9px;flex-shrink:0;
  background:
    radial-gradient(circle at 50% 50%, var(--c-surface) 0 4px, transparent 4px),
    conic-gradient(from 210deg, var(--c-primary) 0 62%, var(--c-accent) 62% 100%);
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.5);
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.2px;color:var(--c-ink);white-space:nowrap;}
.brand-short{display:none;}
.nav-search{
  position:relative;flex:1 1 auto;max-width:560px;min-width:220px;margin:0 auto;
  display:flex;align-items:center;
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  height:46px;padding:0 18px;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.nav-search:focus-within{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(226,64,43,.12);}
.search-icon{display:flex;align-items:center;color:var(--c-muted);margin-right:10px;flex-shrink:0;}
.nav-search input{
  border:0;background:transparent;outline:none;width:100%;height:100%;
  font-size:15px;color:var(--c-ink);
}
.nav-search input::placeholder{color:var(--c-muted);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  align-items:center;justify-content:center;font-size:19px;color:var(--c-ink);
  border:1px solid var(--c-line);
}
.nav-toggle:hover{background:var(--c-bg);}
/* ============ 分类胶囊 ============ */
.cat-strip-wrap{border-bottom:1px solid var(--c-line);background:var(--c-surface);}
.cat-strip{
  display:flex;align-items:center;gap:10px;padding-top:12px;padding-bottom:12px;
  overflow-x:auto;scrollbar-width:none;
}
.cat-strip::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;
  padding:8px 18px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;white-space:nowrap;
  color:var(--c-body);border:1px solid var(--c-line);background:var(--c-surface);
  transition:all var(--ease);
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);}
.chip.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.chip.active:hover{color:#fff;background:var(--c-primary-dark);border-color:var(--c-primary-dark);}
/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--c-surface);
  padding:22px 20px 40px;display:none;flex-direction:column;gap:20px;
  overflow-y:auto;
}
.drawer.open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{width:42px;height:42px;border-radius:var(--r-md);border:1px solid var(--c-line);font-size:18px;color:var(--c-ink);}
.drawer-links{display:flex;flex-direction:column;gap:10px;}
.drawer-links a{
  padding:14px 16px;border-radius:var(--r-md);border:1px solid var(--c-line);
  color:var(--c-ink);font-weight:600;font-size:16px;background:var(--c-surface);
}
.drawer-links a.active{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
/* ============ 面包屑 ============ */
.crumb{background:var(--c-surface);border-bottom:1px solid var(--c-line);}
.crumb .container{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--c-muted);padding-top:14px;padding-bottom:14px;flex-wrap:wrap;}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:var(--c-line);}
.crumb .now{color:var(--c-ink);font-weight:600;}
/* ============ 分类页头 ============ */
.cat-hero{
  position:relative;overflow:hidden;
  background:var(--c-deep);
  color:#fff;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  opacity:.42;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg, rgba(15,61,51,.94) 0%, rgba(15,61,51,.82) 45%, rgba(15,61,51,.42) 100%);
}
.cat-hero .container{position:relative;z-index:2;padding-top:64px;padding-bottom:64px;}
.cat-hero-inner{max-width:720px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,197,61,.16);color:var(--c-accent);
  border:1px solid rgba(255,197,61,.42);
  border-radius:var(--r-pill);padding:6px 14px;font-size:13px;font-weight:600;margin-bottom:20px;
}
.cat-hero h1{
  color:#fff;font-size:40px;line-height:1.25;letter-spacing:-.3px;font-weight:700;margin-bottom:18px;
}
.cat-hero p.lead{font-size:18px;line-height:1.8;color:rgba(255,255,255,.85);margin-bottom:28px;max-width:620px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:14px;
  border-top:1px solid rgba(255,255,255,.2);padding-top:24px;
}
.hero-stat{
  min-width:150px;flex:1 1 150px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-md);
  padding:14px 16px;
}
.hero-stat strong{display:block;font-size:26px;font-weight:700;color:var(--c-accent);letter-spacing:-.5px;font-variant-numeric:tabular-nums;line-height:1.2;}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.8);line-height:1.6;}
/* ============ 板块通用 ============ */
.section{padding:88px 0;}
.section.alt{background:var(--c-surface);}
.section.tight{padding-top:64px;}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--c-primary);background:var(--c-primary-soft);
  border-radius:var(--r-pill);padding:5px 14px;margin-bottom:14px;
}
.sec-head h2{
  font-size:30px;line-height:1.3;font-weight:700;margin-bottom:14px;
  position:relative;padding-left:16px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:1.05em;border-radius:2px;background:var(--c-primary);
}
.sec-head p{font-size:16px;color:var(--c-muted);line-height:1.8;margin:0;}
/* ============ Tab ============ */
.tabbar{
  display:flex;gap:10px;overflow-x:auto;padding:6px 0 22px;scrollbar-width:none;
  mask-image:linear-gradient(90deg,#000 92%,transparent 100%);
  -webkit-mask-image:linear-gradient(90deg,#000 92%,transparent 100%);
}
.tabbar::-webkit-scrollbar{display:none;}
.tab{
  padding:10px 20px;border-radius:var(--r-pill);white-space:nowrap;
  font-size:15px;font-weight:600;color:var(--c-body);
  border:1px solid var(--c-line);background:var(--c-surface);
  transition:all var(--ease);
}
.tab:hover{border-color:var(--c-primary);color:var(--c-primary);}
.tab.active{background:var(--c-deep);border-color:var(--c-deep);color:#fff;}
/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#ded7cc;}
.card-media{position:relative;aspect-ratio:16/9;background:#f1ece4;overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
.card:hover .card-media img{transform:scale(1.03);}
.card-badge{
  position:absolute;left:12px;top:12px;
  background:rgba(255,255,255,.9);color:var(--c-primary);
  font-size:12.5px;font-weight:700;border-radius:var(--r-pill);padding:5px 12px;
  backdrop-filter:blur(4px);
}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:19px;line-height:1.45;font-weight:600;margin-bottom:10px;}
.card-body h3 a{color:var(--c-ink);}
.card-body h3 a:hover{color:var(--c-primary);}
.card-body p{font-size:14px;line-height:1.75;color:var(--c-muted);margin-bottom:18px;}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--c-line);padding-top:14px;font-size:13.5px;color:var(--c-muted);
}
.card-arrow{color:var(--c-muted);transition:transform var(--ease),color var(--ease);}
.card:hover .card-arrow{transform:translateX(4px);color:var(--c-primary);}
.card.hidden{display:none;}
/* ============ 左序号条带 ============ */
.strip-list{display:grid;grid-template-columns:repeat(2,1fr);gap:22px 40px;}
.strip-item{display:flex;gap:18px;padding:22px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);transition:box-shadow var(--ease),transform var(--ease);}
.strip-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.strip-num{
  flex-shrink:0;width:44px;height:44px;border-radius:50%;
  border:2px solid var(--c-primary);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:17px;font-variant-numeric:tabular-nums;
}
.strip-item h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.strip-item p{font-size:14.5px;line-height:1.8;color:var(--c-muted);margin:0;}
/* ============ 时间轴 ============ */
.timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:20px;margin-top:10px;}
.timeline::before{
  content:"";position:absolute;left:0;right:0;top:23px;height:2px;
  background:linear-gradient(90deg,var(--c-primary-soft),var(--c-line));
}
.tl-item{position:relative;padding-top:58px;}
.tl-dot{
  position:absolute;top:0;left:0;width:48px;height:48px;border-radius:50%;
  background:var(--c-surface);border:2px solid var(--c-primary);
  color:var(--c-primary);font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;z-index:2;
}
.tl-item h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.tl-item p{font-size:14px;line-height:1.75;color:var(--c-muted);margin:0;}
/* ============ 证据区 ============ */
.proof-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:32px;align-items:start;}
.proof-quote{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:26px 28px;box-shadow:var(--sh-1);margin-bottom:20px;
}
.proof-quote i{color:var(--c-accent);font-size:18px;margin-bottom:12px;display:block;}
.proof-quote p{font-size:15.5px;line-height:1.85;color:var(--c-body);margin-bottom:14px;}
.proof-quote span{font-size:13.5px;color:var(--c-muted);}
.proof-facts{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.fact{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);
}
.fact strong{display:block;font-size:30px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-.5px;}
.fact span{font-size:13.5px;color:var(--c-muted);}
/* ============ FAQ ============ */
.faq-list{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;}
.faq-item + .faq-item{border-top:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;text-align:left;font-size:17px;font-weight:600;color:var(--c-ink);
  transition:color var(--ease),background var(--ease);
}
.faq-q:hover{color:var(--c-primary);background:#fdfbf8;}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;color:var(--c-muted);font-size:13px;
  transition:transform .2s ease-out,background var(--ease),color var(--ease),border-color var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(180deg);background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.faq-item.open .faq-q{color:var(--c-primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease-out;}
.faq-a-inner{padding:0 26px 24px;font-size:16px;line-height:1.85;color:var(--c-body);max-width:900px;}
/* ============ CTA 条 ============ */
.cta-band{background:var(--c-primary);color:#fff;border-radius:var(--r-xl);padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;box-shadow:var(--sh-3);}
.cta-band h2{color:#fff;font-size:26px;line-height:1.35;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.9);font-size:15.5px;margin:0;max-width:620px;}
.cta-band-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0;}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.8);}
.cta-band .btn-white{background:#fff;color:var(--c-primary);}
.cta-band .btn-white:hover{background:#fff2ef;color:var(--c-primary-dark);}
/* ============ 表单 ============ */
.signup{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:start;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;height:46px;border-radius:var(--r-md);border:1px solid var(--c-line);
  background:var(--c-surface);padding:0 14px;font-size:15px;color:var(--c-ink);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{height:98px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(226,64,43,.12);
}
.field.error input{border-color:var(--c-err);}
.field .msg{font-size:13px;color:var(--c-err);margin-top:6px;display:none;}
.field.error .msg{display:block;}
.form-note{font-size:13px;color:var(--c-muted);margin-top:14px;}
.form-success{
  display:none;background:#EAF7F0;color:var(--c-ok);border:1px solid #c9e8d8;
  border-radius:var(--r-md);padding:12px 16px;font-size:14px;margin-bottom:16px;
}
.form-success.show{display:block;}
.benefits{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:26px 28px;box-shadow:var(--sh-1);}
.benefits h3{font-size:18px;margin-bottom:16px;}
.benefits li{display:flex;gap:12px;font-size:14.5px;line-height:1.8;color:var(--c-body);padding:10px 0;border-bottom:1px dashed var(--c-line);}
.benefits li:last-child{border-bottom:0;}
.benefits i{color:var(--c-primary);margin-top:6px;flex-shrink:0;}
/* ============ 页脚 ============ */
.footer{background:var(--c-deep);color:rgba(255,255,255,.78);padding:64px 0 0;font-size:14.5px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:700;}
.footer-body p{color:rgba(255,255,255,.72);line-height:1.85;font-size:14px;margin-bottom:12px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(255,255,255,.76);font-size:14px;}
.footer-links a:hover{color:var(--c-accent);text-decoration:underline;}
.footer-contact li{display:flex;gap:10px;color:rgba(255,255,255,.76);font-size:14px;margin-bottom:10px;line-height:1.7;}
.footer-contact i{color:var(--c-accent);margin-top:5px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.16);
  padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(255,255,255,.6);flex-wrap:wrap;
}
/* ============ 骨架屏 / 空态 ============ */
.skeleton{background:linear-gradient(90deg,#f0ece5 25%,#e6e0d7 37%,#f0ece5 63%);background-size:400% 100%;animation:shimmer 1.4s ease infinite;border-radius:var(--r-md);}
@keyframes shimmer{0%{background-position:100% 50%}100%{background-position:0 50%}}
/* ============ 响应式 ============ */
@media (max-width:1199px){
  .cat-hero h1{font-size:34px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .timeline{grid-template-columns:repeat(3,1fr);row-gap:32px;}
  .timeline::before{display:none;}
}
@media (max-width:991px){
  .section{padding:64px 0;}
  .brand-text{font-size:17px;}
  .nav-search{max-width:100%;}
  .strip-list{grid-template-columns:1fr;}
  .proof-grid{grid-template-columns:1fr;}
  .signup{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .sec-head h2{font-size:26px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .topbar{display:none;}
  .section{padding:48px 0;}
  .container{padding:0 16px;}
  .navbar-inner{flex-wrap:wrap;gap:12px;padding-top:12px;padding-bottom:12px;min-height:auto;}
  .nav-toggle{display:flex;}
  .nav-actions{display:none;}
  .nav-search{order:3;flex:1 1 100%;max-width:100%;}
  .brand{flex:1;}
  .cat-hero .container{padding-top:44px;padding-bottom:44px;}
  .cat-hero h1{font-size:26px;}
  .cat-hero p.lead{font-size:16px;}
  .hero-stats{gap:10px;}
  .hero-stat{flex:1 1 100%;}
  .card-grid{grid-template-columns:1fr;}
  .timeline{grid-template-columns:1fr;}
  .tl-item{padding-top:0;padding-left:62px;}
  .tl-dot{top:2px;}
  .proof-facts{grid-template-columns:1fr 1fr;}
  .faq-q{padding:18px 18px;font-size:15.5px;}
  .faq-a-inner{padding:0 18px 20px;font-size:15px;}
  .cta-band{border-radius:var(--r-lg);padding:30px 22px;}
  .cta-band h2{font-size:21px;}
  .footer{padding-top:44px;}
  .footer-grid{grid-template-columns:1fr;gap:0;}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.16);}
  .footer-col h4{margin:0;padding:18px 0;display:flex;align-items:center;justify-content:space-between;cursor:pointer;}
  .footer-col h4::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:rgba(255,255,255,.6);transition:transform .2s ease-out;}
  .footer-col.open h4::after{transform:rotate(180deg);}
  .footer-col .footer-body{display:none;padding-bottom:20px;}
  .footer-col.open .footer-body{display:block;}
  .footer-brand{margin-bottom:0;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.16);}
  .footer-col:first-child .footer-body{padding-top:4px;}
  .footer-bottom{margin-top:24px;flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .brand-full{display:none;}
  .brand-short{display:inline;}
  .proof-facts{grid-template-columns:1fr;}
  .hero-cta .btn{width:100%;}
  .cta-band-actions{width:100%;}
  .cta-band-actions .btn{width:100%;}
}