/* roulang page: index */
:root{
  --c-primary:#FF5A3C;
  --c-primary-d:#E23E1F;
  --grad-main:linear-gradient(135deg,#FF5A3C 0%,#FF9E45 100%);
  --c-accent:#0FB8A0;
  --c-accent-l:#E6F7F4;
  --c-ink:#1F1917;
  --c-text:#3D3733;
  --c-muted:#6B6360;
  --c-line:#ECE6E2;
  --c-bg:#FFF9F6;
  --c-surface:#FFFFFF;
  --c-bg-alt:#F4F6F5;
  --sh-1:0 2px 8px rgba(34,26,23,.05);
  --sh-2:0 12px 32px -12px rgba(255,90,60,.18),0 4px 12px rgba(34,26,23,.05);
  --sh-3:0 20px 44px -16px rgba(255,90,60,.28);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --r-xs:12px;
  --tr:220ms cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;background:var(--c-bg);color:var(--c-text);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.9;font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md);}
a{color:var(--c-primary-d);text-decoration:none;transition:color var(--tr),transform var(--tr);}
a:hover{color:var(--c-primary);}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-inline:24px;}
@media (min-width:1400px){.container{max-width:1280px;}}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
@media (max-width:991px){.section{padding:80px 0;}}
@media (max-width:767px){.section{padding:56px 0;}.container{padding-inline:20px;}}

/* ------- 通用组件 ------- */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:600;letter-spacing:.12em;color:var(--c-primary);text-transform:uppercase;}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--grad-main);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;margin-top:10px;}
.sec-head p{margin-top:10px;color:var(--c-muted);font-size:15px;max-width:640px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-primary);font-size:15px;min-height:44px;}
.link-arrow span.arw{transition:transform var(--tr);}
.link-arrow:hover span.arw{transform:translateX(4px);}
.btn-grad,.btn-line{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:50px;padding:0 28px;border-radius:999px;font-weight:700;font-size:16px;cursor:pointer;transition:transform var(--tr),box-shadow var(--tr),background-color var(--tr),background-position var(--tr);border:none;}
.btn-grad{background-image:var(--grad-main);background-size:150% 100%;background-position:0 0;color:#fff;box-shadow:var(--sh-2);}
.btn-grad:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);background-position:60% 0;}
.btn-line{background:transparent;border:1px solid var(--c-line);color:var(--c-ink);}
.btn-line:hover{background:var(--c-bg-alt);color:var(--c-ink);}
.btn-grad:disabled,.btn-line:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.badge-cat{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--c-accent-l);color:var(--c-accent);font-size:12px;font-weight:600;}
.badge-state{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;background:rgba(255,90,60,.12);color:var(--c-primary);font-size:12px;font-weight:600;}
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.grad-text{background-image:var(--grad-main);-webkit-background-clip:text;background-clip:text;color:transparent;}

/* ------- 导航 ------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,249,246,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--c-line);transition:box-shadow var(--tr);}
.site-header.scrolled{box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:38px;height:38px;border-radius:12px;background-image:var(--grad-main);display:grid;place-items:center;box-shadow:var(--sh-2);}
.brand-mark svg{width:20px;height:20px;fill:#fff;}
.brand-text{font-weight:800;font-size:17px;color:var(--c-ink);letter-spacing:-.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:28px;margin-inline:auto;}
.nav-link-item{position:relative;color:var(--c-text);font-size:15px;font-weight:500;padding:6px 0;min-height:44px;display:inline-flex;align-items:center;}
.nav-link-item::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;border-radius:2px;background:var(--grad-main);transform:scaleX(0);transform-origin:left;transition:transform var(--tr);}
.nav-link-item:hover{color:var(--c-primary);}
.nav-link-item:hover::after{transform:scaleX(1);}
.nav-link-item.active{color:var(--c-ink);font-weight:700;}
.nav-link-item.active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.search-box{display:flex;align-items:center;gap:8px;height:42px;width:200px;padding:0 16px;border-radius:999px;background:var(--c-surface);border:1px solid var(--c-line);transition:width var(--tr),border-color var(--tr),box-shadow var(--tr);}
.search-box:focus-within{width:260px;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(255,90,60,.12);}
.search-box svg{width:16px;height:16px;fill:var(--c-muted);flex-shrink:0;}
.search-box input{flex:1;border:none;outline:none;background:transparent;font-size:14px;color:var(--c-text);min-width:0;}
.btn-ghost{height:42px;padding:0 20px;border-radius:999px;background:transparent;border:1px solid var(--c-line);color:var(--c-ink);font-weight:600;font-size:14px;cursor:pointer;transition:background-color var(--tr),border-color var(--tr);}
.btn-ghost:hover{background:var(--c-bg-alt);border-color:var(--c-ink);}
.btn-cta{height:44px;padding:0 24px;border-radius:999px;border:none;background-image:var(--grad-main);background-size:150% 100%;color:#fff;font-weight:700;font-size:15px;cursor:pointer;box-shadow:var(--sh-2);transition:transform var(--tr),box-shadow var(--tr),background-position var(--tr);}
.btn-cta:hover{transform:translateY(-2px);box-shadow:var(--sh-3);background-position:60% 0;}
.nav-toggle{display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--c-line);background:var(--c-surface);cursor:pointer;align-items:center;justify-content:center;}
.nav-toggle svg{width:20px;height:20px;fill:var(--c-ink);}
.mobile-drawer{position:fixed;inset:0;z-index:1040;background:var(--c-surface);padding:20px;display:none;flex-direction:column;gap:18px;overflow-y:auto;}
.mobile-drawer.is-open{display:flex;}
.mobile-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{width:44px;height:44px;border-radius:14px;border:1px solid var(--c-line);background:var(--c-bg-alt);cursor:pointer;font-size:20px;line-height:1;color:var(--c-ink);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;min-height:56px;padding:0 4px;border-bottom:1px solid var(--c-line);color:var(--c-ink);font-size:17px;font-weight:600;}
.drawer-nav a.active{color:var(--c-primary);}
.drawer-foot{margin-top:auto;display:grid;gap:12px;}
.drawer-foot .btn-grad{width:100%;}
@media (max-width:991px){
  .main-nav,.search-box,.btn-ghost,.btn-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:60px;justify-content:space-between;}
}

/* ------- Hero ------- */
.hero{position:relative;overflow:hidden;padding:88px 0 96px;}
.hero::before{content:"";position:absolute;top:-160px;right:-120px;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(255,158,69,.12),rgba(255,158,69,0) 70%);pointer-events:none;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;position:relative;}
.hero h1{font-size:clamp(30px,4.6vw,52px);font-weight:800;line-height:1.15;letter-spacing:-.02em;margin:18px 0 18px;}
.hero-sub{font-size:17px;color:var(--c-text);max-width:560px;line-height:1.9;}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap;}
.hero-stats{display:flex;align-items:center;gap:26px;margin-top:38px;flex-wrap:wrap;}
.hero-stat{display:flex;align-items:baseline;gap:8px;}
.hero-stat b{font-size:32px;font-weight:800;background-image:var(--grad-main);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-stat span{font-size:14px;color:var(--c-muted);}
.hero-stat+.hero-stat{padding-left:26px;border-left:1px solid var(--c-line);}
.hero-visual{position:relative;}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-2);}
.float-card{position:absolute;right:-14px;bottom:-22px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-2);padding:16px 20px;min-width:170px;}
.float-card b{display:block;font-size:26px;font-weight:800;color:var(--c-ink);}
.float-card span{font-size:13px;color:var(--c-muted);}
@media (max-width:1199px){
  .hero-grid{grid-template-columns:6fr 6fr;gap:40px;}
}
@media (max-width:991px){
  .hero{padding:64px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .float-card{right:12px;bottom:12px;}
}
@media (max-width:767px){
  .hero h1{font-size:30px;}
  .hero-actions .btn-grad,.hero-actions .btn-line{width:100%;}
  .hero-stats{gap:16px;}
  .hero-stat+.hero-stat{padding-left:16px;}
}

/* ------- 痛点提问 ------- */
.ask-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.ask-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1);transition:transform var(--tr),box-shadow var(--tr);}
.ask-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.ask-num{width:44px;height:44px;border-radius:50%;border:1.5px solid transparent;background:linear-gradient(var(--c-surface),var(--c-surface)) padding-box,var(--grad-main) border-box;display:grid;place-items:center;font-weight:800;font-size:14px;color:var(--c-primary);margin-bottom:18px;}
.ask-card h3{font-size:19px;font-weight:600;line-height:1.5;}
.ask-card p{margin-top:10px;color:var(--c-muted);font-size:14px;line-height:1.8;}
@media (max-width:767px){.ask-grid{grid-template-columns:1fr;}}

/* ------- 方案区 ------- */
.solution-grid{display:grid;grid-template-columns:7fr 5fr;gap:26px;align-items:stretch;}
.sol-main{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:32px;display:flex;flex-direction:column;transition:transform var(--tr),box-shadow var(--tr);}
.sol-main:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.sol-main img{width:100%;aspect-ratio:3/2;object-fit:cover;border:1px solid var(--c-line);border-radius:var(--r-md);margin-bottom:24px;}
.sol-main h3{font-size:22px;margin-bottom:14px;}
.check-list{display:grid;gap:10px;margin-bottom:22px;}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--c-text);}
.check-list svg{width:18px;height:18px;flex-shrink:0;margin-top:6px;fill:var(--c-accent);}
.sol-side{display:grid;gap:26px;grid-template-rows:1fr 1fr;}
.sol-mini{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:26px;display:flex;flex-direction:column;gap:12px;transition:border-color var(--tr),transform var(--tr);}
.sol-mini:hover{border-color:rgba(15,184,160,.3);transform:translateY(-4px);}
.sol-icon{width:44px;height:44px;border-radius:14px;background:var(--c-accent-l);display:grid;place-items:center;}
.sol-icon svg{width:22px;height:22px;fill:var(--c-accent);}
.sol-mini h3{font-size:18px;}
.sol-mini p{font-size:14px;color:var(--c-muted);line-height:1.8;margin:0;}
@media (max-width:991px){.solution-grid{grid-template-columns:1fr;}}

/* ------- 数据区 ------- */
.data-band{position:relative;background:var(--c-ink);color:#fff;padding:88px 0;overflow:hidden;}
.data-band::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,90,60,.22),rgba(255,158,69,0) 55%);}
.data-band::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);background-size:22px 22px;opacity:.6;}
.data-band .container{position:relative;z-index:2;}
.data-band .section-top{border-top:1px solid rgba(255,255,255,.08);border-bottom:1px solid rgba(255,255,255,.08);padding:56px 0;}
.data-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:center;}
.data-band h2{color:#fff;font-size:clamp(24px,2.6vw,34px);}
.data-band p.lead-text{color:rgba(255,255,255,.72);font-size:15px;margin-top:14px;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;}
.stat b{display:block;font-size:clamp(40px,5vw,56px);font-weight:800;line-height:1.1;background-image:var(--grad-main);-webkit-background-clip:text;background-clip:text;color:transparent;}
.stat span{display:block;font-size:13px;color:rgba(255,255,255,.72);margin-top:8px;}
.stat em{display:block;font-style:normal;font-size:12px;color:rgba(255,255,255,.45);margin-top:4px;}
@media (max-width:1199px){.stat-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:991px){.data-grid{grid-template-columns:1fr;gap:36px;}}
@media (max-width:575px){.stat-grid{grid-template-columns:repeat(2,1fr);gap:20px;}}

/* ------- 资讯列表 ------- */
.news-feature{display:grid;grid-template-columns:44% 56%;gap:0;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;transition:transform var(--tr),box-shadow var(--tr);height:100%;}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.news-feature-media{overflow:hidden;}
.news-feature-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform var(--tr);}
.news-feature:hover .news-feature-media img{transform:scale(1.03);}
.news-feature-body{padding:30px;display:flex;flex-direction:column;gap:14px;}
.news-feature-body h3{font-size:21px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--c-ink);transition:color var(--tr);}
.news-feature:hover .news-feature-body h3{color:var(--c-primary);}
.news-feature-body p{font-size:14px;color:var(--c-muted);line-height:1.85;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:14px;margin-top:auto;font-size:13px;color:var(--c-muted);}
.news-mini{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:8px 24px;height:100%;}
.news-mini li{border-bottom:1px solid var(--c-line);}
.news-mini li:last-child{border-bottom:none;}
.news-mini a{display:flex;flex-direction:column;gap:8px;padding:18px 0;color:var(--c-ink);}
.news-mini .mini-title{font-size:15px;font-weight:600;line-height:1.6;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--tr);}
.news-mini a:hover .mini-title{color:var(--c-primary);}
.news-mini time{font-size:12px;color:var(--c-muted);}
.empty-state{min-height:180px;border:1px dashed var(--c-line);border-radius:var(--r-md);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--c-muted);font-size:14px;background:var(--c-surface);}
.empty-state svg{width:32px;height:32px;fill:var(--c-line);}
@media (max-width:991px){.news-feature{grid-template-columns:1fr;}.news-mini{margin-top:26px;}}

/* ------- FAQ ------- */
.accordion-item{background:var(--c-surface);border:1px solid var(--c-line)!important;border-radius:var(--r-md)!important;margin-bottom:12px;overflow:hidden;transition:box-shadow var(--tr);}
.accordion-item:has(.accordion-button:not(.collapsed)){box-shadow:var(--sh-1);}
.accordion-button{position:relative;background:var(--c-surface);color:var(--c-ink);font-size:16px;font-weight:600;padding:20px 60px 20px 22px;border-radius:var(--r-md)!important;box-shadow:none!important;min-height:60px;}
.accordion-button::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad-main);transform:scaleY(0);transition:transform var(--tr);}
.accordion-button:not(.collapsed)::before{transform:scaleY(1);}
.accordion-button:not(.collapsed){color:var(--c-primary);}
.accordion-button::after{display:none;}
.acc-icon{position:absolute;right:20px;top:50%;transform:translateY(-50%);width:32px;height:32px;border-radius:50%;border:1px solid var(--c-line);display:grid;place-items:center;font-size:18px;line-height:1;color:var(--c-muted);transition:color var(--tr),border-color var(--tr);}
.accordion-button:hover .acc-icon{color:var(--c-primary);border-color:var(--c-primary);}
.accordion-body{padding:4px 22px 22px;color:var(--c-muted);font-size:15px;line-height:1.9;}
.faq-col{max-width:900px;}

/* ------- 表单 ------- */
.lead-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start;}
.lead-left h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:18px;}
.lead-left p.desc{color:var(--c-muted);font-size:15px;margin-bottom:22px;}
.form-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:32px;}
.form-row{display:grid;gap:16px;}
.form-row.two{grid-template-columns:1fr 1fr;}
.field label{display:block;font-size:13px;color:var(--c-muted);margin-bottom:6px;}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--c-line);border-radius:var(--r-xs);background:var(--c-surface);color:var(--c-text);padding:0 14px;height:48px;outline:none;transition:border-color var(--tr),box-shadow var(--tr);}
.field textarea{height:auto;padding:12px 14px;line-height:1.8;resize:vertical;min-height:112px;}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(255,90,60,.12);}
.form-check-row{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--c-muted);line-height:1.7;}
.form-check-row input{width:18px;height:18px;margin-top:4px;accent-color:var(--c-primary);}
.form-note{font-size:13px;color:var(--c-muted);line-height:1.8;margin-top:14px;}
.form-note a{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:3px;}
@media (max-width:991px){.lead-grid{grid-template-columns:1fr;gap:32px;}.form-card{padding:24px;}}
@media (max-width:575px){.form-row.two{grid-template-columns:1fr;}}

/* ------- 模态框 ------- */
.modal-content{border:none;border-radius:var(--r-lg);box-shadow:var(--sh-3);}
.modal-header{border-bottom:1px solid var(--c-line);padding:22px 28px;}
.modal-title{font-size:19px;font-weight:700;color:var(--c-ink);}
.modal-body{padding:26px 28px 30px;}
.modal-backdrop.show{opacity:.55;}
.modal-close{width:36px;height:36px;border-radius:50%;border:1px solid var(--c-line);background:transparent;color:var(--c-muted);cursor:pointer;font-size:18px;line-height:1;display:grid;place-items:center;transition:color var(--tr),border-color var(--tr);}
.modal-close:hover{color:var(--c-primary);border-color:var(--c-primary);}

/* ------- 页脚 ------- */
.footer-line{height:3px;background:linear-gradient(90deg,var(--c-primary),var(--c-accent));}
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:320px;}
.footer-social{display:flex;gap:12px;margin-top:20px;}
.footer-social a{width:44px;height:44px;border-radius:14px;background:rgba(255,255,255,.06);display:grid;place-items:center;transition:background-color var(--tr);}
.footer-social a:hover{background:rgba(255,90,60,.28);}
.footer-social svg{width:18px;height:18px;fill:rgba(255,255,255,.8);}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;display:inline-block;transition:color var(--tr),transform var(--tr);}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.1);padding:24px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom .links a{color:rgba(255,255,255,.6);}
.footer-bottom .links a:hover{color:#fff;}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:575px){.footer-grid{grid-template-columns:1fr;}.footer-bottom{flex-direction:column;align-items:flex-start;}}

/* ------- 进场动效 ------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity 600ms ease,transform 600ms ease;}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --c-primary:#FF5A3C;
  --c-primary-d:#E23E1F;
  --grad-main:linear-gradient(135deg,#FF5A3C 0%,#FF9E45 100%);
  --c-accent:#0FB8A0;
  --c-accent-l:#E6F7F4;
  --c-ink:#1F1917;
  --c-text:#3D3733;
  --c-muted:#6B6360;
  --c-line:#ECE6E2;
  --c-bg:#FFF9F6;
  --c-bg-alt:#F4F6F5;
  --c-surface:#FFFFFF;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --sh-1:0 2px 8px rgba(34,26,23,.05);
  --sh-2:0 12px 32px -12px rgba(255,90,60,.18),0 4px 12px rgba(34,26,23,.05);
  --sh-3:0 20px 44px -16px rgba(255,90,60,.28);
  --ease:220ms cubic-bezier(.22,.61,.36,1);
  --bs-primary:#FF5A3C;
  --bs-body-bg:#FFF9F6;
  --bs-body-color:#3D3733;
  --bs-border-color:#ECE6E2;
  --bs-link-color:#E23E1F;
  --bs-link-hover-color:#FF5A3C;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.9;
  background:var(--c-bg);
  color:var(--c-text);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
::selection{background:rgba(255,90,60,.18)}

.container{width:100%;max-width:1200px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:575.98px){.container{padding-left:20px;padding-right:20px}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,249,246,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad-main);
  display:grid;place-items:center;box-shadow:var(--sh-2);flex:none;
}
.brand-mark svg{width:17px;height:17px;fill:#fff}
.brand-text{font-size:17px;font-weight:800;color:var(--c-ink);letter-spacing:-.01em}
.main-nav{display:flex;gap:28px;align-items:center}
.nav-link-item{position:relative;padding:6px 0;font-size:15px;color:var(--c-text);transition:color var(--ease)}
.nav-link-item::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--grad-main);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-link-item:hover{color:var(--c-primary)}
.nav-link-item:hover::after{transform:scaleX(1)}
.nav-link-item.active{color:var(--c-ink);font-weight:700}
.nav-link-item.active::after{transform:scaleX(1)}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;width:200px;height:42px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:999px;background:#fff;
  transition:width var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.search-box:focus-within{width:260px;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(255,90,60,.12)}
.search-box svg{width:16px;height:16px;fill:var(--c-muted);flex:none}
.search-box input{border:0;outline:0;background:transparent;width:100%;font-size:14px;line-height:1}
.btn-ghost{
  height:42px;padding:0 18px;border:1px solid var(--c-line);border-radius:999px;
  background:transparent;font-size:14px;color:var(--c-ink);transition:all var(--ease);
}
.btn-ghost:hover{background:var(--c-bg-alt);border-color:#dcd4cf}
.btn-cta{
  height:42px;padding:0 22px;border:0;border-radius:999px;background:var(--grad-main);
  color:#fff;font-size:14px;font-weight:700;box-shadow:var(--sh-2);
  transition:transform var(--ease),box-shadow var(--ease),background-position var(--ease);
}
.btn-cta:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:14px;
  background:#fff;place-items:center;
}
.nav-toggle svg{width:20px;height:20px;fill:var(--c-ink)}
.mobile-drawer{
  position:fixed;inset:0;z-index:1060;background:var(--c-surface);
  transform:translateX(100%);transition:transform 280ms cubic-bezier(.22,.61,.36,1);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:44px;height:44px;border-radius:14px;border:1px solid var(--c-line);background:#fff;display:grid;place-items:center}
.drawer-close svg{width:18px;height:18px;fill:var(--c-ink)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-top:22px}
.drawer-nav a{padding:14px 12px;border-radius:14px;font-size:16px;color:var(--c-ink);font-weight:600}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--c-bg);color:var(--c-primary)}
.drawer-foot{margin-top:auto;padding-top:20px}

/* ============ 通用组件 ============ */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:600;
  letter-spacing:.12em;color:var(--c-primary);text-transform:uppercase;
}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--grad-main)}
h1,h2,h3,h4{margin:0}
.h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3;color:var(--c-ink)}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 28px;border:0;border-radius:999px;
  background:var(--grad-main);color:#fff;font-size:15px;font-weight:700;
  box-shadow:var(--sh-2);transition:transform var(--ease),box-shadow var(--ease);
}
.btn-main:hover{transform:translateY(-2px);box-shadow:var(--sh-3);color:#fff}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border:1px solid var(--c-line);border-radius:999px;
  background:transparent;color:var(--c-ink);font-size:15px;font-weight:600;transition:all var(--ease);
}
.btn-line:hover{background:var(--c-bg-alt);border-color:#dcd4cf}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary-d);
}
.text-link svg{width:15px;height:15px;fill:currentColor;transition:transform var(--ease)}
.text-link:hover{color:var(--c-primary)}
.text-link:hover svg{transform:translateX(4px)}
.badge-cat{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:var(--c-accent-l);color:var(--c-accent);font-size:12px;font-weight:600;line-height:1;
}
.badge-state{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:rgba(255,90,60,.12);color:var(--c-primary);font-size:12px;font-weight:600;line-height:1;
}

/* ============ 文章头部 ============ */
.breadcrumb-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:26px 0 0;font-size:14px;color:var(--c-muted);
}
.breadcrumb-line a:hover{color:var(--c-primary)}
.breadcrumb-line .sep{color:#cfc7c2}
.breadcrumb-line .current{color:#9a918c;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{padding:22px 0 30px;border-bottom:1px solid var(--c-line);margin-top:20px}
.article-head h1{
  font-size:clamp(28px,3.8vw,42px);font-weight:800;line-height:1.24;
  letter-spacing:-.02em;color:var(--c-ink);margin:16px 0 18px;max-width:22ch;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--c-muted);font-variant-numeric:tabular-nums}
.article-meta .dot{color:#d8d0cb}

/* ============ 文章布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:44px;
  padding:44px 0 72px;
}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,780px) 240px;justify-content:center;gap:56px}
}
.article-body{font-size:17px;line-height:1.9;color:var(--c-text);max-width:780px;overflow-wrap:break-word}
.article-body h2{
  position:relative;font-size:clamp(22px,2.2vw,28px);font-weight:700;color:var(--c-ink);
  line-height:1.35;margin:40px 0 16px;padding-left:16px;scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.32em;width:4px;height:18px;border-radius:2px;background:var(--grad-main);
}
.article-body h3{font-size:19px;font-weight:600;color:var(--c-ink);margin:28px 0 12px;scroll-margin-top:96px}
.article-body h4{font-size:17px;font-weight:600;color:var(--c-ink);margin:22px 0 10px}
.article-body p{margin:0 0 18px}
.article-body strong{color:var(--c-ink);font-weight:700}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:24px}
.article-body li{margin-bottom:8px}
.article-body ul li::marker{color:var(--c-accent)}
.article-body ol li::marker{color:var(--c-primary);font-weight:700}
.article-body blockquote{
  margin:24px 0;padding:20px 22px;background:var(--c-bg-alt);
  border-left:4px solid var(--c-primary);border-radius:var(--r-md);color:var(--c-text);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-primary)}
.article-body img{border-radius:var(--r-md);border:1px solid var(--c-line);margin:6px 0;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:36px 0}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;font-size:15px;
  border:1px solid var(--c-line);border-radius:16px;overflow:hidden;margin:22px 0;
}
.article-body th{background:var(--c-bg-alt);font-weight:700;color:var(--c-ink);text-align:left}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--c-line)}
.article-body tr:last-child td{border-bottom:0}
.article-body code{
  background:var(--c-bg-alt);border-radius:6px;padding:2px 6px;font-size:15px;color:var(--c-primary-d);
}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  min-height:220px;padding:52px 24px;text-align:center;
  border:1px dashed var(--c-line);border-radius:var(--r-md);background:#fff;
}
.empty-state svg{width:38px;height:38px;fill:#cfc7c2}
.empty-state .empty-title{font-size:18px;font-weight:700;color:var(--c-ink);margin:0}
.empty-state .empty-desc{font-size:14px;color:var(--c-muted);margin:0;max-width:44ch}

/* ============ 侧栏 ============ */
.article-aside{display:none}
@media (min-width:1200px){.article-aside{display:block}}
.aside-card{
  position:sticky;top:96px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-1);
}
.aside-title{font-size:13px;font-weight:700;color:var(--c-ink);letter-spacing:.04em;margin:0 0 12px}
.aside-meta{list-style:none;padding:0;margin:0 0 6px;display:flex;flex-direction:column;gap:10px}
.aside-meta li{display:flex;justify-content:space-between;gap:10px;font-size:13px;color:var(--c-muted)}
.aside-meta b{color:var(--c-text);font-weight:600;font-variant-numeric:tabular-nums;text-align:right}
.toc-block{margin-top:16px;padding-top:16px;border-top:1px solid var(--c-line)}
.toc-list{list-style:none;padding:0;margin:0}
.toc-list a{
  display:block;padding:7px 12px;font-size:13px;line-height:1.5;color:var(--c-muted);
  border-left:2px solid transparent;transition:all var(--ease);
}
.toc-list a:hover{color:var(--c-primary)}
.toc-list a.current{color:var(--c-ink);font-weight:600;border-left-color:var(--c-primary);background:var(--c-bg)}

/* ============ 文章尾部 ============ */
.article-foot{
  margin-top:44px;padding-top:26px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:var(--c-bg-alt);color:var(--c-muted);font-size:13px;transition:all var(--ease);
}
.tag:hover{background:var(--c-accent-l);color:var(--c-accent)}
.back-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--c-primary-d)}
.back-link svg{width:16px;height:16px;fill:currentColor;transition:transform var(--ease)}
.back-link:hover svg{transform:translateX(-4px)}

/* ============ 相关推荐 ============ */
.related{padding:72px 0;background:var(--c-bg-alt)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head .h2{margin-top:12px}
.card-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,60,.28)}
.post-card .thumb{overflow:hidden;background:var(--c-bg-alt)}
.post-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;border:0;border-radius:0;transition:transform var(--ease)}
.post-card:hover .thumb img{transform:scale(1.03)}
.post-card .card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.post-card h3{font-size:18px;font-weight:700;line-height:1.45;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card:hover h3{color:var(--c-primary)}
.post-card .card-meta{display:flex;gap:10px;align-items:center;font-size:13px;color:var(--c-muted);font-variant-numeric:tabular-nums;margin-top:auto}

/* ============ CTA ============ */
.cta-band{padding:0 0 88px}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  padding:44px 40px;border-radius:var(--r-lg);
  background:linear-gradient(135deg,rgba(255,90,60,.12) 0%,rgba(15,184,160,.14) 100%);
  border:1px solid var(--c-line);
}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;color:var(--c-ink);line-height:1.35;max-width:22ch}
.cta-inner p{margin:10px 0 0;font-size:15px;color:var(--c-muted);max-width:46ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 表单 / 弹层 ============ */
.form-label{font-size:13px;color:var(--c-muted);margin-bottom:6px;font-weight:600}
.form-control,.form-select{
  height:48px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:#fff;
  font-size:15px;color:var(--c-text);box-shadow:none;transition:border-color var(--ease),box-shadow var(--ease);
}
textarea.form-control{height:auto;min-height:110px;padding-top:12px;line-height:1.7}
.form-control:focus,.form-select:focus{
  border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(255,90,60,.12);
}
.form-check-input:checked{background-color:var(--c-primary);border-color:var(--c-primary)}
.form-check-input:focus{box-shadow:0 0 0 4px rgba(255,90,60,.12);border-color:var(--c-primary)}
.form-note{font-size:13px;color:var(--c-muted);line-height:1.8;margin-top:14px}
.modal-content{border:0;border-radius:var(--r-lg);box-shadow:var(--sh-3);padding:6px}
.modal-backdrop.show{opacity:.55;background:#1F1917}
.modal-header{border-bottom:0;padding:22px 26px 6px}
.modal-title{font-size:20px;font-weight:700;color:var(--c-ink)}
.modal-body{padding:16px 26px 28px}
.modal-close{
  width:38px;height:38px;border-radius:999px;border:1px solid var(--c-line);background:#fff;
  display:grid;place-items:center;padding:0;opacity:1;
}
.modal-close svg{width:16px;height:16px;fill:var(--c-ink)}
.modal-close:hover{border-color:var(--c-primary)}
.modal-close:hover svg{fill:var(--c-primary)}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:var(--c-ink);color:rgba(255,255,255,.72);
  padding:68px 0 28px;margin-top:80px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16px}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:10px}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);margin:16px 0 0;max-width:340px}
.footer-social{display:flex;gap:12px;margin-top:20px}
.footer-social a{
  width:38px;height:38px;border-radius:12px;border:1px solid rgba(255,255,255,.16);
  display:grid;place-items:center;transition:all var(--ease);
}
.footer-social a:hover{border-color:rgba(255,255,255,.4);background:rgba(255,255,255,.06)}
.footer-social svg{width:17px;height:17px;fill:rgba(255,255,255,.8)}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin:0 0 16px}
.footer-col ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:12px}
.footer-col a{display:inline-block;font-size:14px;color:rgba(255,255,255,.72);transition:all var(--ease)}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:rgba(255,255,255,.58);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:20px}
.footer-bottom .links a:hover{color:#fff}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-body{max-width:100%}
}
@media (max-width:991.98px){
  .main-nav,.search-box,.btn-ghost{display:none}
  .nav-toggle{display:grid}
  .header-inner{height:64px;gap:16px}
  .brand-text{font-size:16px}
  .card-grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
  .related{padding:56px 0}
  .article-head h1{max-width:100%}
}
@media (max-width:767.98px){
  .article-layout{padding:32px 0 56px;gap:32px}
  .article-body{font-size:16px}
  .article-body h2{margin-top:34px}
  .card-grid-3{grid-template-columns:minmax(0,1fr)}
  .cta-inner{padding:32px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-line{flex:1 1 100%}
  .related{padding:48px 0}
  .article-foot{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .article-head h1{font-size:30px}
  .article-meta{font-size:13px}
  .brand-text{max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: category1 */
:root{
  --c-primary:#FF5A3C;
  --c-primary-d:#E23E1F;
  --grad-main:linear-gradient(135deg,#FF5A3C 0%,#FF9E45 100%);
  --c-accent:#0FB8A0;
  --c-accent-l:#E6F7F4;
  --c-ink:#1F1917;
  --c-text:#3D3733;
  --c-muted:#6B6360;
  --c-line:#ECE6E2;
  --c-bg:#FFF9F6;
  --c-surface:#FFFFFF;
  --c-bg-alt:#F4F6F5;
  --sh-1:0 2px 8px rgba(34,26,23,.05);
  --sh-2:0 12px 32px -12px rgba(255,90,60,.18), 0 4px 12px rgba(34,26,23,.05);
  --sh-3:0 20px 44px -16px rgba(255,90,60,.28);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --tr:220ms cubic-bezier(.22,.61,.36,1);
  --container:1200px;

  --bs-primary:#FF5A3C;
  --bs-primary-rgb:255,90,60;
  --bs-body-bg:#FFF9F6;
  --bs-body-color:#3D3733;
  --bs-body-font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --bs-border-color:#ECE6E2;
  --bs-border-radius:14px;
  --bs-link-color:#E23E1F;
  --bs-link-hover-color:#FF5A3C;
  --bs-emphasis-color:#1F1917;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary-d);text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--c-primary)}
button{font:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:24px;
}
@media (min-width:1400px){ .container{max-width:1280px} }

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(255,249,246,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--tr);
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{
  display:flex;align-items:center;gap:28px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--grad-main);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);
}
.brand-mark svg{width:18px;height:18px;fill:#fff}
.brand-text{font-size:17px;font-weight:800;color:var(--c-ink);letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:6px}
.nav-link-item{
  position:relative;
  font-size:15px;font-weight:500;color:var(--c-text);
  padding:8px 0;
}
.nav-link-item::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--grad-main);border-radius:2px;transition:width var(--tr);
}
.nav-link-item:hover{color:var(--c-primary)}
.nav-link-item:hover::after{width:100%}
.nav-link-item.active{color:var(--c-ink);font-weight:700}
.nav-link-item.active::after{width:100%}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:200px;height:42px;padding:0 16px;
  background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:999px;
  transition:width var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.search-box svg{width:17px;height:17px;fill:var(--c-muted);flex:0 0 auto}
.search-box input{
  border:0;outline:0;background:transparent;width:100%;
  font-size:14px;color:var(--c-text);
}
.search-box input::placeholder{color:var(--c-muted)}
.search-box:focus-within{width:260px;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(255,90,60,.12)}
.btn-ghost{
  height:42px;padding:0 18px;border-radius:999px;
  border:1px solid var(--c-line);background:transparent;
  color:var(--c-ink);font-size:14px;font-weight:600;
  transition:background var(--tr),border-color var(--tr),color var(--tr);
}
.btn-ghost:hover{background:var(--c-bg-alt);border-color:#DCD4CF;color:var(--c-ink)}
.btn-cta{
  height:42px;padding:0 22px;border:0;border-radius:999px;
  background:var(--grad-main);color:#fff;font-size:14px;font-weight:700;
  box-shadow:var(--sh-2);
  transition:transform var(--tr),box-shadow var(--tr),background-position var(--tr);
  background-size:140% 140%;background-position:0 0;
}
.btn-cta:hover{transform:translateY(-2px);box-shadow:var(--sh-3);background-position:100% 0;color:#fff}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);
  background:var(--c-surface);border-radius:12px;align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;fill:var(--c-ink)}

/* ============ mobile drawer ============ */
.mobile-drawer{
  position:fixed;inset:0;z-index:1080;display:none;
  background:var(--c-surface);
  padding:20px;
  flex-direction:column;gap:18px;
  overflow-y:auto;
}
.mobile-drawer.open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--c-line);
  background:transparent;display:flex;align-items:center;justify-content:center;
}
.drawer-close svg{width:18px;height:18px;fill:var(--c-ink)}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;padding:0 4px;font-size:17px;font-weight:600;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
}
.drawer-links a.active{color:var(--c-primary)}
.drawer-foot{margin-top:auto;padding-top:16px}
.drawer-search{
  display:flex;align-items:center;gap:10px;width:100%;height:48px;
  padding:0 18px;background:var(--c-bg-alt);border-radius:999px;
}
.drawer-search svg{width:18px;height:18px;fill:var(--c-muted)}
.drawer-search input{border:0;background:transparent;outline:0;width:100%;font-size:15px}
.btn-block{width:100%;height:52px;border:0;border-radius:999px;background:var(--grad-main);color:#fff;font-weight:700;font-size:16px;box-shadow:var(--sh-2)}

/* ============ breadcrumb ============ */
.crumb-bar{padding:20px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-muted)}
.crumb a{color:var(--c-muted)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:#C9C0BB}
.crumb .current{color:#A79E99}

/* ============ hero ============ */
.cat-hero{
  position:relative;margin-top:16px;border-radius:var(--r-lg);overflow:hidden;
  min-height:270px;display:flex;align-items:center;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-2);
}
.cat-hero .hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cat-hero .hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(45deg,rgba(226,62,31,.94) 0%,rgba(255,90,60,.78) 38%,rgba(255,158,69,.42) 66%,rgba(31,25,23,.30) 100%);
}
.cat-hero .hero-inner{position:relative;z-index:2;padding:44px 48px;max-width:720px;color:#fff}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  color:var(--c-primary);
}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--grad-main)}
.cat-hero .eyebrow{color:#FFE6D9}
.cat-hero .eyebrow::before{background:#fff}
.cat-hero h1{
  font-size:clamp(26px,3.4vw,42px);font-weight:800;line-height:1.2;letter-spacing:-.02em;
  color:#fff;margin:14px 0 12px;
}
.cat-hero p{font-size:16px;line-height:1.85;color:rgba(255,255,255,.92);max-width:620px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-chip{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.34);
  color:#fff;font-size:13px;font-weight:600;
}
.hero-chip i{width:6px;height:6px;border-radius:50%;background:#fff;display:inline-block}

/* ============ layout ============ */
.section{padding:72px 0}
.section-tight{padding:56px 0}
.cat-layout{display:grid;grid-template-columns:270px 1fr;gap:32px;align-items:start}

.side-nav{
  position:sticky;top:96px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:22px 20px;box-shadow:var(--sh-1);
}
.side-nav h2{font-size:15px;font-weight:700;margin-bottom:6px}
.side-nav .side-note{font-size:13px;color:var(--c-muted);line-height:1.7;margin-bottom:16px}
.anchor-list{display:flex;flex-direction:column}
.anchor-list a{
  position:relative;display:block;
  padding:11px 0 11px 16px;font-size:14px;color:var(--c-text);
  border-bottom:1px solid var(--c-line);transition:color var(--tr),padding-left var(--tr);
}
.anchor-list li:last-child a{border-bottom:0}
.anchor-list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:3px;background:var(--grad-main);transition:height var(--tr);
}
.anchor-list a:hover{color:var(--c-primary)}
.anchor-list a:hover::before{height:22px}
.anchor-list a.current{color:var(--c-ink);font-weight:700}
.anchor-list a.current::before{height:22px}
.side-cta{
  margin-top:18px;padding:16px;border-radius:14px;background:var(--c-accent-l);
  border:1px solid rgba(15,184,160,.22);
}
.side-cta p{font-size:13px;color:#0A6E60;line-height:1.7;margin-bottom:10px}
.side-cta button{
  width:100%;height:40px;border:0;border-radius:999px;background:var(--c-accent);
  color:#fff;font-size:14px;font-weight:700;transition:opacity var(--tr),transform var(--tr);
}
.side-cta button:hover{opacity:.9;transform:translateY(-2px)}

.block-head{margin-bottom:24px}
.block-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3;margin-top:10px;position:relative;padding-left:18px}
.block-head h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:4px;background:var(--grad-main);
}
.block-head .lead{margin-top:12px;font-size:15px;color:var(--c-muted);max-width:660px}

.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
.entry-card{
  display:flex;flex-direction:column;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#E3D9D3}
.card-media{position:relative;overflow:hidden;background:var(--c-bg-alt);aspect-ratio:16/10}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--tr)}
.entry-card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.badge-cat{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:var(--c-accent-l);color:#0A8A78;font-size:12px;font-weight:600;
}
.badge-state{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:rgba(255,90,60,.12);color:var(--c-primary-d);font-size:12px;font-weight:600;
}
.entry-card h3{font-size:19px;font-weight:600;line-height:1.45;margin-bottom:8px}
.entry-card .summary{
  font-size:14px;color:var(--c-muted);line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:14px;
}
.check-list{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.check-list li{display:flex;gap:9px;font-size:14px;color:var(--c-text);line-height:1.7}
.check-list li svg{width:16px;height:16px;flex:0 0 auto;margin-top:5px;fill:var(--c-accent)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;margin-top:auto;
  font-size:14px;font-weight:700;color:var(--c-primary-d);
}
.link-arrow svg{width:14px;height:14px;fill:currentColor;transition:transform var(--tr)}
.link-arrow:hover svg{transform:translateX(4px)}
.link-arrow:hover{color:var(--c-primary)}

/* ============ quick tips ============ */
.tips-band{
  margin-top:48px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:30px 32px;box-shadow:var(--sh-1);
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;
}
.tip{display:flex;gap:14px}
.tip-icon{
  width:44px;height:44px;flex:0 0 auto;border-radius:14px;background:var(--c-accent-l);
  display:flex;align-items:center;justify-content:center;
}
.tip-icon svg{width:20px;height:20px;fill:#0A8A78}
.tip h3{font-size:16px;font-weight:600;margin-bottom:6px}
.tip p{font-size:14px;color:var(--c-muted);line-height:1.8}

/* ============ cta band ============ */
.cta-band{
  margin-top:8px;
  background:linear-gradient(120deg,#FFF1E9 0%,#FFE8DC 52%,#E6F7F4 100%);
  border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.2vw,30px);font-weight:700;line-height:1.35;margin-bottom:10px}
.cta-band p{font-size:15px;color:var(--c-text);max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-primary-pill{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;padding:0 28px;border:0;border-radius:999px;
  background:var(--grad-main);color:#fff;font-size:15px;font-weight:700;
  box-shadow:var(--sh-2);background-size:140% 140%;background-position:0 0;
  transition:transform var(--tr),box-shadow var(--tr),background-position var(--tr);
}
.btn-primary-pill:hover{transform:translateY(-2px);box-shadow:var(--sh-3);background-position:100% 0;color:#fff}
.btn-outline-pill{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;padding:0 26px;border-radius:999px;
  border:1px solid #D9CFC9;background:transparent;color:var(--c-ink);
  font-size:15px;font-weight:600;transition:background var(--tr),border-color var(--tr);
}
.btn-outline-pill:hover{background:var(--c-surface);border-color:var(--c-primary);color:var(--c-primary-d)}

/* ============ faq ============ */
.faq-wrap{max-width:900px}
.accordion-item{
  border:1px solid var(--c-line) !important;
  border-radius:var(--r-md) !important;
  margin-bottom:12px;background:var(--c-surface);overflow:hidden;
}
.accordion-item:has(.accordion-button:not(.collapsed)){box-shadow:var(--sh-1)}
.accordion-button{
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--c-ink);
  background:var(--c-surface);box-shadow:none !important;
  border-left:3px solid transparent;
}
.accordion-button:not(.collapsed){
  color:var(--c-primary-d);background:var(--c-surface);
  border-left-color:var(--c-primary);
}
.accordion-button::after{display:none}
.accordion-button .pm{
  width:28px;height:28px;flex:0 0 auto;margin-left:16px;border-radius:50%;
  border:1px solid var(--c-line);display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;color:var(--c-muted);transition:all var(--tr);
}
.accordion-button:not(.collapsed) .pm{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.accordion-body{padding:0 24px 24px;font-size:15px;color:var(--c-text);line-height:1.9}

/* ============ notes ============ */
.notes{
  margin-top:56px;padding:32px;border-radius:var(--r-lg);
  background:var(--c-bg-alt);border:1px solid var(--c-line);
}
.notes h2{font-size:20px;font-weight:700;margin-bottom:14px}
.notes-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.notes-grid p{font-size:14px;color:var(--c-muted);line-height:1.85}
.notes-grid strong{display:block;color:var(--c-ink);font-size:15px;margin-bottom:6px}

/* ============ footer ============ */
.site-footer{
  position:relative;margin-top:88px;background:var(--c-ink);color:rgba(255,255,255,.78);
  padding:64px 0 28px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--c-primary) 0%,var(--c-accent) 100%);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-text{color:#fff}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:40px;height:40px;border-radius:12px;
  background:rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;transition:background var(--tr);
}
.footer-social a:hover{background:rgba(255,90,60,.35)}
.footer-social svg{width:18px;height:18px;fill:#fff}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{
  font-size:14px;color:rgba(255,255,255,.72);
  display:inline-block;transition:color var(--tr),transform var(--tr);
}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom .links a{font-size:13px;color:rgba(255,255,255,.55)}
.footer-bottom .links a:hover{color:#fff}

/* ============ modal & form ============ */
.modal-content{
  border:0;border-radius:var(--r-lg);box-shadow:var(--sh-3);
  background:var(--c-surface);padding:8px;
}
.modal-backdrop.show{opacity:.55}
.modal-header{border-bottom:1px solid var(--c-line);padding:20px 24px}
.modal-title{font-size:18px;font-weight:700;color:var(--c-ink)}
.modal-header .btn-close{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--c-line);
  background-size:12px;opacity:.7;
}
.modal-body{padding:24px}
.modal-body .sub{font-size:14px;color:var(--c-muted);margin-bottom:18px;line-height:1.8}
.form-label{font-size:13px;color:var(--c-muted);margin-bottom:6px;display:block}
.form-control,.form-select{
  height:48px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  background:var(--c-surface);font-size:15px;color:var(--c-text);padding:0 14px;
  box-shadow:none;transition:border-color var(--tr),box-shadow var(--tr);
}
textarea.form-control{height:auto;padding:12px 14px;resize:vertical}
.form-control:focus,.form-select:focus{
  border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(255,90,60,.12);
}
.form-check-input{width:18px;height:18px;margin-top:.3rem;border-color:var(--c-line)}
.form-check-input:checked{background-color:var(--c-primary);border-color:var(--c-primary)}
.form-check-label{font-size:13px;color:var(--c-muted);line-height:1.7}
.form-note{font-size:13px;color:var(--c-muted);line-height:1.8;margin-top:14px}
.mb-14{margin-bottom:14px}

/* ============ responsive ============ */
@media (min-width:1200px) and (max-width:1399px){
  :root{--container:1200px}
}
@media (max-width:1199px){
  .cat-layout{grid-template-columns:1fr;gap:26px}
  .side-nav{position:static}
  .anchor-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 20px}
  .anchor-list a{border-bottom:1px solid var(--c-line)}
  .side-cta{margin-top:20px}
}
@media (max-width:991px){
  .main-nav{display:none}
  .search-box,.btn-ghost{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{min-height:60px;gap:16px}
  .section{padding:80px 0}
  .card-grid{grid-template-columns:1fr}
  .tips-band{grid-template-columns:1fr;gap:22px;padding:26px}
  .notes-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cat-hero .hero-inner{padding:36px 32px;max-width:100%}
  .cta-band{padding:34px 30px}
}
@media (max-width:767px){
  .container{padding-inline:20px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .cat-hero{min-height:300px;border-radius:var(--r-md)}
  .cat-hero .hero-inner{padding:28px 22px}
  .cat-hero p{font-size:15px}
  .block-head h2{padding-left:14px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .anchor-list{grid-template-columns:1fr}
  .site-footer{margin-top:64px;padding:48px 0 24px}
  .acc-foot .btn-primary-pill,.btn-outline-pill{width:100%}
}
@media (max-width:575px){
  h1{font-size:30px}
  .brand-text{font-size:15px}
  .card-body{padding:20px}
  .cta-band{padding:28px 22px}
  .cta-actions{width:100%}
  .btn-primary-pill{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
}

/* roulang page: category2 */
:root{
  --c-primary:#FF5A3C;
  --c-primary-d:#E23E1F;
  --grad-main:linear-gradient(135deg,#FF5A3C 0%,#FF9E45 100%);
  --c-accent:#0FB8A0;
  --c-accent-l:#E6F7F4;
  --c-ink:#1F1917;
  --c-text:#3D3733;
  --c-muted:#6B6360;
  --c-line:#ECE6E2;
  --c-bg:#FFF9F6;
  --c-surface:#FFFFFF;
  --c-bg-alt:#F4F6F5;
  --sh-1:0 2px 8px rgba(34,26,23,.05);
  --sh-2:0 12px 32px -12px rgba(255,90,60,.18),0 4px 12px rgba(34,26,23,.05);
  --sh-3:0 20px 44px -16px rgba(255,90,60,.28);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --ease:cubic-bezier(.22,.61,.36,1);

  --bs-primary:#FF5A3C;
  --bs-body-bg:#FFF9F6;
  --bs-body-color:#3D3733;
  --bs-border-color:#ECE6E2;
  --bs-border-radius:14px;
  --bs-link-color:#E23E1F;
  --bs-link-hover-color:#FF5A3C;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;border-radius:var(--r-md);}
a{color:var(--c-primary-d);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--c-primary);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
h1,h2,h3{color:var(--c-ink);letter-spacing:-.01em;}
h1{font-size:clamp(30px,4.6vw,52px);font-weight:800;line-height:1.15;letter-spacing:-.02em;}
h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3;}
h3{font-size:clamp(18px,1.6vw,22px);font-weight:600;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:8px;}

.container,.container-fluid{
  width:100%;
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){.container{max-width:1280px;}}
@media (max-width:575px){.container{padding-left:20px;padding-right:20px;}}

/* ===== header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,249,246,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s var(--ease);
}
.site-header.scrolled{box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--grad-main);
  display:grid;place-items:center;
  box-shadow:var(--sh-2);
  flex:none;
}
.brand-mark svg{width:17px;height:17px;fill:#fff;display:block;}
.brand-text{font-weight:800;font-size:17px;color:var(--c-ink);letter-spacing:-.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:6px;}
.nav-link-item{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--c-text);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link-item::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--grad-main);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-link-item:hover{color:var(--c-primary);}
.nav-link-item:hover::after{transform:scaleX(1);}
.nav-link-item.active{color:var(--c-ink);font-weight:700;}
.nav-link-item.active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:200px;height:40px;padding:0 14px;
  border:1px solid var(--c-line);
  border-radius:999px;
  background:#fff;
  transition:width .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.search-box:focus-within{width:260px;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(255,90,60,.12);}
.search-box svg{width:16px;height:16px;fill:var(--c-muted);flex:none;}
.search-box input{border:0;outline:0;background:transparent;width:100%;font-size:14px;min-width:0;}
.search-box input::placeholder{color:#A69E9A;}
.btn-ghost{
  height:40px;padding:0 18px;
  border:1px solid var(--c-line);
  background:transparent;
  border-radius:999px;
  font-size:14px;font-weight:500;color:var(--c-ink);
  cursor:pointer;
  transition:all .22s var(--ease);
  white-space:nowrap;
}
.btn-ghost:hover{background:var(--c-bg-alt);border-color:#DDD3CD;}
.btn-cta{
  height:40px;padding:0 20px;
  border:0;border-radius:999px;
  background:var(--grad-main);
  color:#fff;font-size:14px;font-weight:700;
  cursor:pointer;
  box-shadow:var(--sh-2);
  transition:all .22s var(--ease);
  white-space:nowrap;
}
.btn-cta:hover{transform:translateY(-2px);box-shadow:var(--sh-3);background-size:110% 110%;}
.btn-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--c-line);
  border-radius:12px;
  background:#fff;
  align-items:center;justify-content:center;
  cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;fill:var(--c-ink);}

.mobile-drawer{
  position:fixed;inset:0;z-index:1080;
  background:rgba(31,25,23,.5);
  opacity:0;visibility:hidden;
  transition:opacity .22s var(--ease),visibility .22s var(--ease);
}
.mobile-drawer.open{opacity:1;visibility:visible;}
.drawer-panel{
  position:absolute;top:0;left:0;right:0;
  background:var(--c-surface);
  border-radius:0 0 24px 24px;
  padding:20px;
  transform:translateY(-16px);
  transition:transform .22s var(--ease);
}
.mobile-drawer.open .drawer-panel{transform:none;}
.drawer-search{width:100%;height:46px;margin-bottom:18px;}
.drawer-search:focus-within{width:100%;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  display:flex;align-items:center;
  min-height:52px;
  padding:0 4px;
  font-size:16px;font-weight:600;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
}
.drawer-nav a.active{color:var(--c-primary);}
.drawer-cta{width:100%;height:50px;margin-top:20px;font-size:16px;}

/* ===== sections ===== */
.section{padding:88px 0;}
.section-alt{background:var(--c-bg-alt);}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:600;letter-spacing:.12em;
  color:var(--c-primary);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--grad-main);flex:none;}
.eyebrow.accent{color:var(--c-accent);}
.eyebrow.accent::before{background:linear-gradient(135deg,#0FB8A0,#5AD9C6);}
.eyebrow.center{justify-content:center;}

/* ===== breadcrumb ===== */
.crumb{padding-top:24px;font-size:14px;color:var(--c-muted);display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#C9C1BC;}
.crumb .now{color:var(--c-ink);font-weight:600;}

/* ===== category hero (centered) ===== */
.cat-hero{padding:32px 0 56px;text-align:center;position:relative;overflow:hidden;}
.cat-hero::before{
  content:"";
  position:absolute;top:-160px;right:-120px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(255,90,60,.12) 0%,rgba(255,90,60,0) 68%);
  pointer-events:none;
}
.cat-hero-inner{position:relative;max-width:860px;margin:0 auto;}
.cat-hero h1{margin:18px 0 20px;}
.cat-hero .lead{font-size:17px;line-height:2;color:var(--c-muted);max-width:720px;margin:0 auto;}
.cat-hero .lead span{display:block;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px;}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 30px;
  border:0;border-radius:999px;
  background:var(--grad-main);
  color:#fff;font-size:16px;font-weight:700;
  box-shadow:var(--sh-2);
  cursor:pointer;
  transition:all .22s var(--ease);
}
.btn-main:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;
  border:1px solid var(--c-ink);
  border-radius:999px;
  background:transparent;
  color:var(--c-ink);font-size:16px;font-weight:600;
  cursor:pointer;
  transition:all .22s var(--ease);
}
.btn-line:hover{background:var(--c-bg-alt);color:var(--c-ink);}
.btn-main:disabled,.btn-line:disabled{opacity:.45;cursor:not-allowed;transform:none;}

.hero-banner{margin-top:48px;}
.hero-banner img{
  width:100%;
  height:clamp(200px,32vw,380px);
  object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-2);
}

/* ===== steps timeline ===== */
.step-timeline{
  position:relative;
  display:grid;
  gap:26px;
  padding-left:96px;
  margin-top:44px;
}
.step-timeline::before{
  content:"";
  position:absolute;
  left:29px;top:30px;bottom:30px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--c-primary),#FF9E45 55%,var(--c-accent));
  opacity:.55;
}
.step-item{position:relative;}
.step-node{
  position:absolute;
  left:-96px;top:0;
  width:60px;height:60px;
  border-radius:50%;
  display:grid;place-items:center;
  font-size:17px;font-weight:800;
  color:var(--c-primary);
  background:#fff;
  border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-main);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  font-variant-numeric:tabular-nums;
}
.step-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:26px 28px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,60,.28);}
.step-card h3{margin-bottom:10px;}
.step-card p{color:var(--c-muted);font-size:15px;}
.tick-list{margin-top:14px;display:grid;gap:8px;}
.tick-list li{
  position:relative;
  padding-left:26px;
  font-size:14.5px;
  color:var(--c-text);
  line-height:1.75;
}
.tick-list li::before{
  content:"";
  position:absolute;left:0;top:9px;
  width:14px;height:14px;border-radius:50%;
  background:var(--c-accent-l);
}
.tick-list li::after{
  content:"";
  position:absolute;left:4.5px;top:13px;
  width:5px;height:3px;
  border-left:1.6px solid var(--c-accent);
  border-bottom:1.6px solid var(--c-accent);
  transform:rotate(-45deg);
}
@media (min-width:992px){
  .step-item:nth-child(even) .step-card{margin-left:24px;}
}

/* ===== device cards ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:44px;}
.device-card{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:28px 26px 26px;
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.device-card::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--grad-main);
  opacity:.9;
}
.device-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,60,.25);}
.device-icon{
  width:46px;height:46px;border-radius:14px;
  background:var(--c-accent-l);
  display:grid;place-items:center;
  margin-bottom:18px;
}
.device-icon svg{width:22px;height:22px;fill:var(--c-accent);}
.device-no{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--c-muted);}
.device-card h3{margin:6px 0 10px;}
.device-card p{font-size:14.5px;color:var(--c-muted);line-height:1.85;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:16px;
  font-size:14px;font-weight:600;color:var(--c-primary-d);
}
.link-more svg{width:14px;height:14px;fill:currentColor;transition:transform .22s var(--ease);}
.link-more:hover svg{transform:translateX(4px);}

/* ===== checklist split ===== */
.split-5-7{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;margin-top:20px;}
.split-5-7 img{
  width:100%;
  height:100%;
  min-height:280px;
  object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-2);
}
.check-grid{display:grid;gap:16px;margin-top:26px;}
.check-item{
  display:flex;gap:16px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:18px 20px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.check-item:hover{transform:translateY(-2px);border-color:rgba(15,184,160,.35);}
.check-idx{
  flex:none;
  width:34px;height:34px;border-radius:10px;
  background:var(--c-accent-l);
  color:var(--c-accent);
  font-weight:800;font-size:13px;
  display:grid;place-items:center;
}
.check-item h3{font-size:16px;font-weight:600;margin-bottom:4px;}
.check-item p{font-size:14px;color:var(--c-muted);line-height:1.75;}

/* ===== faq ===== */
.faq-wrap{max-width:860px;margin:40px auto 0;}
.accordion-item{
  border:1px solid var(--c-line)!important;
  border-radius:var(--r-md)!important;
  background:var(--c-surface);
  box-shadow:var(--sh-1);
  overflow:hidden;
  margin-bottom:12px;
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--c-ink);
  padding:20px 24px;
  background:var(--c-surface);
  box-shadow:none!important;
  transition:color .22s var(--ease),background .22s var(--ease);
}
.accordion-button:not(.collapsed){
  color:var(--c-primary-d);
  background:var(--c-surface);
}
.accordion-button::after{
  content:"";
  width:28px;height:28px;
  flex:none;
  margin-left:16px;
  border:1px solid var(--c-line);
  border-radius:50%;
  background-image:linear-gradient(var(--c-primary),var(--c-primary)),linear-gradient(var(--c-primary),var(--c-primary));
  background-size:12px 2px,2px 12px;
  background-position:center,center;
  background-repeat:no-repeat;
  transform:none;
  transition:background-size .22s var(--ease),border-color .22s var(--ease);
}
.accordion-button:not(.collapsed)::after{
  background-size:12px 2px,2px 0;
  border-color:rgba(255,90,60,.45);
}
.accordion-button:hover::after{border-color:var(--c-primary);}
.accordion-body{
  padding:0 24px 22px;
  font-size:15px;
  color:var(--c-muted);
  line-height:1.9;
}

/* ===== cta band ===== */
.cta-band{
  border-radius:var(--r-lg);
  background:linear-gradient(135deg,#FFF1EA 0%,#FFF9F6 45%,#E9F8F5 100%);
  border:1px solid var(--c-line);
  padding:44px;
  box-shadow:var(--sh-1);
}
.cta-inner{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;}
.cta-copy h2{margin:14px 0 14px;}
.cta-copy p{color:var(--c-muted);font-size:15px;}
.cta-form{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--sh-2);
  display:grid;gap:14px;
}
.field{display:grid;gap:6px;}
.field label{font-size:13px;color:var(--c-muted);font-weight:600;}
.field input,.field select,.field textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  background:#fff;
  font-size:15px;
  color:var(--c-text);
  outline:0;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field textarea{resize:vertical;min-height:96px;line-height:1.75;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-primary);
  box-shadow:0 0 0 4px rgba(255,90,60,.12);
}
.field input::placeholder,.field textarea::placeholder{color:#A69E9A;}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--c-muted);line-height:1.7;}
.check-line input{width:18px;height:18px;margin-top:2px;accent-color:var(--c-primary);flex:none;}
.form-note{font-size:13px;color:var(--c-muted);line-height:1.8;}
.form-note a{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:3px;}

/* ===== footer ===== */
.site-footer{
  position:relative;
  background:var(--c-ink);
  color:rgba(255,255,255,.72);
  margin-top:0;
  padding-top:64px;
}
.site-footer::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--c-primary) 0%,#FF9E45 50%,var(--c-accent) 100%);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand .brand-text{color:#fff;font-weight:800;font-size:17px;}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:320px;}
.footer-social{display:flex;gap:12px;margin-top:18px;}
.footer-social a{
  width:40px;height:40px;border-radius:12px;
  border:1px solid rgba(255,255,255,.16);
  display:grid;place-items:center;
  transition:all .22s var(--ease);
}
.footer-social a svg{width:18px;height:18px;fill:rgba(255,255,255,.78);}
.footer-social a:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.36);transform:translateY(-2px);}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);display:inline-block;transition:all .22s var(--ease);}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 30px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-size:13px;color:rgba(255,255,255,.55);
  flex-wrap:wrap;
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom .links a{color:rgba(255,255,255,.55);}
.footer-bottom .links a:hover{color:#fff;}

/* ===== modal ===== */
.modal-content{
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-3);
  background:var(--c-surface);
}
.modal-header{border-bottom:1px solid var(--c-line);padding:20px 24px;}
.modal-title{font-size:18px;font-weight:700;color:var(--c-ink);}
.modal-body{padding:24px;}
.modal-backdrop{background:#1F1917;}
.modal-backdrop.show{opacity:.55;}
.btn-close{opacity:.5;transition:opacity .22s var(--ease);}
.btn-close:hover{opacity:1;}
.modal-form{display:grid;gap:14px;}

/* ===== reveal ===== */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s var(--ease),transform .55s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ===== bootstrap overrides ===== */
.btn{border-radius:999px;font-weight:600;transition:all .22s var(--ease);}
.btn-primary{
  --bs-btn-bg:var(--c-primary);
  --bs-btn-border-color:transparent;
  --bs-btn-color:#fff;
  --bs-btn-hover-bg:var(--c-primary-d);
  --bs-btn-hover-border-color:transparent;
  --bs-btn-hover-color:#fff;
  --bs-btn-active-bg:var(--c-primary-d);
  --bs-btn-active-border-color:transparent;
  --bs-btn-active-color:#fff;
  --bs-btn-focus-shadow-rgb:255,90,60;
  box-shadow:var(--sh-2);
}
.btn-outline-primary{
  --bs-btn-color:var(--c-primary-d);
  --bs-btn-border-color:rgba(255,90,60,.5);
  --bs-btn-hover-bg:var(--c-primary);
  --bs-btn-hover-border-color:var(--c-primary);
  --bs-btn-hover-color:#fff;
  --bs-btn-active-bg:var(--c-primary-d);
  --bs-btn-active-border-color:var(--c-primary-d);
}
.card{border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);background:var(--c-surface);}
.form-control,.form-select{
  border-radius:var(--r-sm);
  border:1px solid var(--c-line);
  min-height:48px;
  background-color:#fff;
  color:var(--c-text);
}
.form-control:focus,.form-select:focus{
  border-color:var(--c-primary);
  box-shadow:0 0 0 4px rgba(255,90,60,.12);
  color:var(--c-text);
}
.badge{--bs-badge-border-radius:999px;border-radius:999px;font-weight:600;}
.nav-link{color:var(--c-text);}
.nav-link:hover{color:var(--c-primary);}
.breadcrumb{--bs-breadcrumb-divider-color:var(--c-muted);margin:0;font-size:14px;}

/* ===== responsive ===== */
@media (max-width:1199px){
  .main-nav{gap:22px;}
  .search-box{width:170px;}
  .search-box:focus-within{width:210px;}
}
@media (max-width:991px){
  .section{padding:64px 0;}
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .search-box{display:none;}
  .btn-ghost{display:none;}
  .grid-3{grid-template-columns:1fr 1fr;}
  .split-5-7{grid-template-columns:1fr;gap:32px;}
  .split-5-7 img{min-height:220px;height:220px;}
  .cta-inner{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .header-inner{height:60px;}
  .brand-text{font-size:15px;}
  .grid-3{grid-template-columns:1fr;}
  .step-timeline{padding-left:0;gap:20px;}
  .step-timeline::before{display:none;}
  .step-node{
    position:static;
    width:46px;height:46px;
    font-size:14px;
    margin-bottom:12px;
  }
  .step-item:nth-child(even) .step-card{margin-left:0;}
  .cta-band{padding:28px 20px;border-radius:var(--r-md);}
  .cta-form{padding:20px;}
  .hero-actions .btn-main,.hero-actions .btn-line{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575px){
  .section{padding:56px 0;}
  .cat-hero{padding:24px 0 40px;}
  .cat-hero .lead{font-size:15.5px;}
  .step-card{padding:22px 20px;}
  .device-card{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;}
  .reveal{opacity:1;transform:none;}
}