/* roulang page: index */
:root{
  --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --c-primary:#E3312B;
  --c-primary-dark:#C2201A;
  --c-accent:#D9F24B;
  --c-dark:#171A17;
  --c-dark-2:#1F231E;
  --c-light:#F5F4F0;
  --c-white:#FFFFFF;
  --c-gray:#8A8F89;
  --c-text:#282B26;
  --c-border:#E4E2DA;
  --radius-sm:4px;
  --radius-md:12px;
  --radius-lg:14px;
  --radius-xl:20px;
  --shadow-md:0 12px 30px rgba(23,26,23,.10);
  --shadow-lg:0 18px 40px rgba(23,26,23,.16);
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  background:var(--c-light);
  color:var(--c-text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{background:none;border:0;cursor:pointer;font:inherit}
input,textarea,select{font:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
section{position:relative}

::selection{background:var(--c-accent);color:var(--c-dark)}

/* ===== buttons ===== */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;justify-content:center;
  padding:.78rem 1.8rem;border-radius:999px;
  font-weight:700;font-size:.97rem;line-height:1.2;
  border:2px solid transparent;transition:all .25s ease;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;flex:0 0 auto}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.btn-primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);transform:translateY(-2px);box-shadow:0 10px 24px rgba(227,49,43,.25)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{border-color:var(--c-accent);color:var(--c-accent);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:var(--c-white);color:var(--c-dark);border-color:var(--c-white)}
.btn-light:hover{background:var(--c-accent);border-color:var(--c-accent);transform:translateY(-2px);box-shadow:0 10px 24px rgba(217,242,75,.25)}
button:focus-visible,a:focus-visible,input:focus-visible{
  outline:3px solid rgba(217,242,75,.85);outline-offset:3px;border-radius:8px
}

/* ===== header ===== */
.site-header{
  position:fixed;top:16px;left:0;right:0;z-index:1000;
  padding:0 20px;transition:top .3s ease;
}
.site-header.is-scrolled{top:10px}
.nav-capsule{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;padding:9px 10px 9px 22px;
  background:rgba(23,26,23,.82);
  border:1px solid rgba(255,255,255,.10);
  border-radius:999px;
  box-shadow:0 8px 30px rgba(23,26,23,.22);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  transition:background .3s ease, box-shadow .3s ease;
}
.site-header.is-scrolled .nav-capsule{
  background:rgba(23,26,23,.96);
  box-shadow:0 12px 34px rgba(23,26,23,.30);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;
  background:var(--c-primary);color:#fff;
  font-weight:900;font-size:.9rem;letter-spacing:.04em;
  transform:rotate(-4deg);
}
.brand-name{
  color:#fff;font-weight:800;font-size:1.02rem;letter-spacing:.02em;
  white-space:nowrap;
}
.brand-mark sup{font-size:.55em;margin-left:1px}

.site-nav ul{display:flex;align-items:center;gap:4px}
.nav-link{
  display:inline-flex;align-items:center;gap:4px;
  padding:8px 16px;border-radius:999px;
  color:rgba(255,255,255,.88);font-weight:600;font-size:.95rem;
  transition:background .22s ease,color .22s ease,box-shadow .22s ease;
}
.nav-link:hover{background:rgba(255,255,255,.12);color:#fff}
.nav-link.active{background:var(--c-primary);color:#fff;box-shadow:0 4px 14px rgba(227,49,43,.32)}
.nav-link.active:hover{background:var(--c-primary);color:#fff}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:.62rem 1.3rem;border-radius:999px;
  background:var(--c-primary);color:#fff;font-weight:700;font-size:.9rem;
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease;
  flex:0 0 auto;
}
.nav-cta:hover{background:var(--c-accent);color:var(--c-dark);transform:translateY(-1px);box-shadow:0 6px 16px rgba(217,242,75,.25)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:50%;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  color:#fff;transition:background .2s ease;flex:0 0 auto;
}
.nav-toggle:hover{background:var(--c-primary)}
.nav-toggle svg{width:20px;height:20px}

/* ===== hero ===== */
.hero{
  background-color:var(--c-dark);
  background-image:
    linear-gradient(115deg, rgba(23,26,23,.98) 0%, rgba(23,26,23,.89) 46%, rgba(23,26,23,.55) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:172px 0 88px;
  overflow:hidden;
}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:48px;align-items:center;
}
.hero-kicker{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 14px;border-radius:999px;
  background:rgba(217,242,75,.12);
  border:1px solid rgba(217,242,75,.4);
  color:var(--c-accent);font-size:.82rem;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;margin-bottom:26px;
}
.hero-kicker i{width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
.hero h1{
  font-size:clamp(2.2rem,5vw,3.6rem);
  line-height:1.18;letter-spacing:.02em;font-weight:900;
  margin-bottom:24px;
}
.hero h1 .line{color:var(--c-accent)}
.hero-desc{
  color:rgba(255,255,255,.82);max-width:620px;
  font-size:1.09rem;line-height:1.85;margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px}
.hero-tags li{
  padding:6px 12px;border-radius:999px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  color:rgba(255,255,255,.85);font-size:.82rem;font-weight:600;
}
.hero-visual{position:relative}
.hero-photo{
  position:relative;border-radius:24px;overflow:hidden;
  background:#232825;
  box-shadow:0 28px 80px rgba(0,0,0,.45);
  transform:rotate(1.5deg);
  border:1px solid rgba(255,255,255,.12);
}
.hero-photo::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top, rgba(23,26,23,.45), transparent 55%);
}
.hero-photo img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3.2}
.hero-float-card{
  position:absolute;left:-18px;bottom:22px;z-index:3;
  background:rgba(23,26,23,.92);
  border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(10px);
  border-radius:16px;padding:14px 18px;
  display:flex;align-items:center;gap:14px;
  box-shadow:0 12px 32px rgba(0,0,0,.35);
}
.hero-float-icon{
  width:42px;height:42px;border-radius:12px;
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.hero-float-icon svg{width:22px;height:22px}
.hero-float-card strong{display:block;font-size:.96rem;color:#fff;line-height:1.3}
.hero-float-card span{display:block;font-size:.76rem;color:var(--c-accent);line-height:1.3}

/* ===== assurance ===== */
.section{padding:92px 0}
.assurance-section{background:var(--c-light);padding:18px 0 80px}
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.assure-item{
  background:var(--c-white);border:1px solid var(--c-border);
  border-radius:var(--radius-lg);padding:26px 24px;
  display:flex;align-items:flex-start;gap:16px;
  transition:box-shadow .25s ease,transform .25s ease;
}
.assure-item:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
.assure-icon{
  width:48px;height:48px;flex:0 0 auto;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(227,49,43,.09);color:var(--c-primary);
}
.assure-icon svg{width:24px;height:24px}
.assure-item h3{font-size:1rem;font-weight:800;margin-bottom:2px}
.assure-item p{font-size:.88rem;color:var(--c-gray);line-height:1.55}

/* ===== section head ===== */
.section-head{max-width:820px;margin-bottom:42px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--c-primary);font-weight:800;font-size:.83rem;
  letter-spacing:.14em;text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:24px;height:3px;background:var(--c-primary);border-radius:3px;display:inline-block}
.eyebrow.light{color:var(--c-accent)}
.eyebrow.light::before{background:var(--c-accent)}
.section-head h2{
  font-size:clamp(1.6rem,3vw,2.4rem);
  line-height:1.22;letter-spacing:.02em;font-weight:900;
  color:var(--c-dark);
}
.section-head .sub{margin-top:14px;color:var(--c-gray);font-size:1.02rem}
.section-head.light h2{color:#fff}
.section-head.light .sub{color:rgba(255,255,255,.7)}

/* ===== product cards ===== */
.products-section{background:var(--c-light)}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.product-card{
  background:var(--c-white);border:1px solid var(--c-border);
  border-radius:var(--radius-lg);overflow:hidden;
  transition:box-shadow .28s ease,transform .28s ease,border-color .28s ease;
  display:flex;flex-direction:column;
}
.product-card:hover{
  box-shadow:0 18px 42px rgba(23,26,23,.14);
  transform:translateY(-5px);
  border-color:rgba(227,49,43,.45);
}
.product-thumb{
  position:relative;aspect-ratio:4/3;overflow:hidden;
  background:#E3E0D8;
}
.product-thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .55s ease;
}
.product-card:hover .product-thumb img{transform:scale(1.06)}
.product-tag{
  position:absolute;left:14px;top:12px;z-index:2;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(23,26,23,.72);color:#fff;
  padding:5px 12px;border-radius:999px;
  font-size:.78rem;letter-spacing:.03em;font-weight:600;
  backdrop-filter:blur(5px);
}
.badge-acid{
  position:absolute;right:14px;top:12px;z-index:2;
  background:var(--c-accent);color:var(--c-dark);
  font-weight:800;font-size:.75rem;
  padding:4px 12px;border-radius:999px;letter-spacing:.05em;
}
.product-body{
  padding:22px 22px 0;display:flex;flex-direction:column;flex:1;
}
.product-body h3{
  font-size:1.16rem;font-weight:800;letter-spacing:.01em;
  margin-bottom:8px;
}
.product-body h3 a{transition:color .2s ease}
.product-body h3 a:hover{color:var(--c-primary)}
.product-desc{color:var(--c-gray);font-size:.92rem;line-height:1.65;margin-bottom:14px}
.product-rating{
  display:flex;align-items:center;gap:8px;margin-bottom:18px;
  font-size:.86rem;color:var(--c-gray);
}
.stars{color:var(--c-primary);font-size:.95rem;letter-spacing:2px}
.product-rating b{color:var(--c-dark);font-weight:800}
.product-foot{
  border-top:1px solid var(--c-border);
  padding:16px 0 20px;margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;
  gap:10px;
}
.price{font-size:1.3rem;font-weight:900;color:var(--c-dark);letter-spacing:-.02em}
.price em{font-style:normal;font-size:.78rem;color:var(--c-gray);font-weight:600;margin-right:2px}
.btn-sm{padding:.45rem .95rem;border-radius:999px;font-size:.84rem;font-weight:700;background:var(--c-dark);color:#fff;border:2px solid var(--c-dark);transition:all .2s ease;display:inline-flex;align-items:center;gap:6px}
.btn-sm:hover{background:var(--c-primary);border-color:var(--c-primary);transform:translateY(-1px)}

/* ===== showcase ===== */
.showcase-section{background:var(--c-white)}
.showcase-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.showcase-card{
  position:relative;border-radius:var(--radius-xl);overflow:hidden;
  display:block;background:var(--c-dark);
  min-height:420px;
  transition:transform .28s ease,box-shadow .28s ease;
}
.showcase-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.showcase-card img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform .6s ease;
}
.showcase-card:hover img{transform:scale(1.05)}
.showcase-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top, rgba(23,26,23,.93) 0%, rgba(23,26,23,.45) 45%, rgba(23,26,23,.18) 100%);
}
.showcase-content{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:30px;color:#fff;
}
.showcase-tag{
  display:inline-block;background:var(--c-accent);color:var(--c-dark);
  font-weight:800;font-size:.78rem;padding:4px 12px;border-radius:4px;
  margin-bottom:16px;letter-spacing:.05em;
}
.showcase-content h3{font-size:1.7rem;font-weight:900;letter-spacing:.02em;margin-bottom:10px}
.showcase-content p{color:rgba(255,255,255,.82);font-size:1rem;line-height:1.75;margin-bottom:18px;max-width:500px}
.go-link{
  display:inline-flex;align-items:center;gap:8px;color:#fff;font-weight:800;font-size:.95rem;
}
.go-link span{display:inline-block;transition:transform .25s ease}
.showcase-card:hover .go-link span{transform:translateX(5px)}

/* ===== review slider ===== */
.review-section{background:var(--c-dark);color:#fff;overflow:hidden}
.review-slider{
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;
}
.review-viewport{overflow:hidden;border-radius:22px}
.review-track{display:flex;transition:transform .5s ease}
.review-slide{flex:0 0 100%;min-width:100%;padding:10px}
.review-panel{
  max-width:880px;margin:0 auto;text-align:center;padding:38px 38px 30px;
}
.review-quote{
  font-size:clamp(1.08rem,2vw,1.38rem);
  line-height:1.8;color:rgba(255,255,255,.92);
  letter-spacing:.01em;margin-bottom:26px;
}
.review-quote::before{content:"“";display:block;font-size:3rem;color:var(--c-accent);font-weight:900;line-height:1;height:2.4rem;margin-bottom:6px}
.review-person{display:flex;align-items:center;justify-content:center;gap:16px}
.review-avatar{
  width:52px;height:52px;border-radius:50%;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;letter-spacing:.05em;
  box-shadow:0 6px 16px rgba(227,49,43,.3);
}
.review-person strong{display:block;color:#fff;font-weight:800;text-align:left}
.review-person span{color:var(--c-accent);font-size:.8rem;display:block;text-align:left}
.review-person .stars{color:var(--c-accent);font-size:1rem;display:block;text-align:left;margin-top:3px}
.slider-arrow{
  width:50px;height:50px;border-radius:50%;
  border:1px solid rgba(255,255,255,.28);color:#fff;
  font-size:1.6rem;line-height:1;display:flex;align-items:center;justify-content:center;
  transition:all .22s ease;
}
.slider-arrow:hover{background:var(--c-primary);border-color:var(--c-primary)}
.slider-arrow:active{transform:scale(.95)}
.review-dots{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:26px}
.review-dot{
  width:8px;height:8px;border-radius:99px;background:rgba(255,255,255,.35);
  transition:all .25s ease;padding:0;
}
.review-dot.is-active{width:26px;border-radius:99px;background:var(--c-primary)}
.review-dot:hover{background:rgba(255,255,255,.7)}

/* ===== news ===== */
.news-section{background:var(--c-light)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  background:var(--c-white);border:1px solid var(--c-border);
  border-radius:var(--radius-lg);padding:26px 24px;
  display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{
  transform:translateY(-4px);box-shadow:var(--shadow-md);
  border-color:rgba(227,49,43,.4);
}
.news-cat{
  align-self:flex-start;display:inline-flex;align-items:center;
  background:rgba(227,49,43,.08);color:var(--c-primary);
  font-size:.78rem;font-weight:700;letter-spacing:.03em;
  padding:4px 11px;border-radius:5px;margin-bottom:14px;
}
.news-title{
  font-size:1.12rem;line-height:1.5;font-weight:800;
  margin-bottom:10px;letter-spacing:.01em;
}
.news-title a{transition:color .2s ease}
.news-title a:hover{color:var(--c-primary)}
.news-summary{
  color:var(--c-gray);font-size:.94rem;line-height:1.7;
  margin-bottom:20px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--c-border);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:.88rem;
}
.news-date{color:var(--c-gray)}
.news-more{
  display:inline-flex;align-items:center;gap:5px;
  font-weight:700;color:var(--c-primary);
}
.news-more span{transition:transform .2s ease}
.news-card:hover .news-more span{transform:translateX(4px)}
.news-empty{
  grid-column:1/-1;text-align:center;color:var(--c-gray);
  border:2px dashed var(--c-border);border-radius:var(--radius-lg);
  padding:56px 24px;background:var(--c-white);font-size:1rem;
}

/* ===== FAQ ===== */
.faq-section{background:var(--c-white)}
.faq-list{max-width:920px;margin:0 auto}
.faq-item{
  background:var(--c-light);border:1px solid var(--c-border);
  border-radius:var(--radius-lg);margin-bottom:16px;overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item[open]{box-shadow:var(--shadow-md);border-color:rgba(227,49,43,.25)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 26px;font-weight:800;font-size:1.02rem;
  transition:color .2s ease;
  min-height:48px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-icon{
  width:32px;height:32px;flex:0 0 auto;border-radius:50%;
  border:2px solid var(--c-primary);color:var(--c-primary);
  font-size:1.2rem;font-weight:700;display:flex;align-items:center;justify-content:center;
  transition:transform .3s ease,background .3s ease,color .3s ease;
}
.faq-item[open] .faq-icon{background:var(--c-primary);color:#fff;transform:rotate(45deg)}
.faq-content{
  padding:0 26px 22px 78px;color:var(--c-gray);
  font-size:1rem;line-height:1.85;
}
.faq-content p{margin-bottom:8px}
.faq-content p:last-child{margin-bottom:0}

/* ===== cta ===== */
.cta-section{
  background-color:var(--c-dark);
  background-image:
    linear-gradient(to right, rgba(23,26,23,.97) 0%, rgba(23,26,23,.78) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  padding:104px 0;
  color:#fff;
  text-align:center;
}
.cta-content{max-width:820px;margin:0 auto}
.cta-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--c-accent);font-weight:800;letter-spacing:.12em;
  text-transform:uppercase;font-size:.83rem;margin-bottom:18px;
}
.cta-eyebrow::before,.cta-eyebrow::after{content:"";width:20px;height:2px;background:var(--c-accent)}
.cta-content h2{
  font-size:clamp(1.9rem,3.8vw,3rem);
  line-height:1.2;letter-spacing:.02em;font-weight:900;
  margin-bottom:18px;
}
.cta-content > p{color:rgba(255,255,255,.82);font-size:1.06rem;margin-bottom:34px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ===== footer ===== */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.7);padding:58px 0 0}
.footer-top{
  display:grid;grid-template-columns:1.3fr 1fr;gap:48px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-logo{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-weight:900;font-size:1.18rem;
  margin-bottom:14px;
}
.footer-logo .footer-mark{
  width:40px;height:40px;border-radius:12px;
  background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:900;font-size:.9rem;
}
.footer-brand p{font-size:.95rem;line-height:1.8;max-width:420px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;
  padding:22px 0 28px;
  font-size:.86rem;
}
.footer-tech{color:rgba(255,255,255,.45);font-family:"SFMono-Regular",Consolas,monospace;font-size:.78rem}

/* ===== responsive ===== */
@media (max-width: 1199px){
  .brand-name{font-size:.92rem}
  .nav-link{padding:8px 11px;font-size:.88rem}
}
@media (max-width: 991px){
  .assure-grid{grid-template-columns:repeat(2,1fr)}
  .showcase-card{min-height:380px}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .nav-cta{display:none}
}
@media (max-width: 767px){
  .section{padding:68px 0}
  .site-header{top:8px;padding:0 12px}
  .site-header.is-scrolled{top:6px}
  .nav-capsule{padding:9px 8px 9px 14px;border-radius:28px;gap:8px}
  .brand-name{font-size:.92rem;max-width:220px;overflow:hidden;text-overflow:ellipsis}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:fixed;top:82px;left:14px;right:14px;z-index:999;
    background:rgba(23,26,23,.97);
    border:1px solid rgba(255,255,255,.12);
    border-radius:22px;
    box-shadow:0 24px 60px rgba(0,0,0,.35);
    padding:10px;
    opacity:0;visibility:hidden;transform:translateY(8px);
    transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
  }
  .site-nav.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .site-nav ul{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{padding:14px 16px;border-radius:14px;justify-content:flex-start;font-size:1rem}
  .nav-link.active{box-shadow:none}
  .hero{padding:138px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero h1{font-size:clamp(2rem,8vw,2.7rem)}
  .hero-photo{transform:none}
  .hero-float-card{left:12px;bottom:12px}
  .product-grid,.news-grid,.showcase-grid{grid-template-columns:1fr}
  .section-head{margin-bottom:32px}
  .review-slider{grid-template-columns:1fr;gap:8px}
  .review-panel{padding:28px 12px 18px}
  .slider-arrow{width:52px;height:44px}
  .slider-arrow{
    position:static;
  }
  .slider-arrow#reviewPrev{justify-self:start}
  .slider-arrow#reviewNext{justify-self:end}
  .faq-content{padding:0 20px 20px}
  .footer-top{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
}
@media (max-width: 520px){
  .container{padding:0 18px}
  .assure-grid{grid-template-columns:1fr}
  .brand-name{max-width:150px;white-space:normal;line-height:1.2}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .cta-actions{flex-direction:column;width:100%;max-width:360px;margin:0 auto}
  .cta-actions .btn{width:100%}
  .hero-photo img{aspect-ratio:4/4}
  .review-person{flex-wrap:wrap}
}

/* roulang page: article */
:root {
  --primary: #E3312B;
  --primary-dark: #C02722;
  --primary-light: rgba(227, 49, 43, 0.12);
  --accent: #D9F24B;
  --bg-deep: #171A17;
  --bg-warm: #F5F4F0;
  --bg-card: #FFFFFF;
  --text-main: #1C1F1C;
  --text-sub: #5C615B;
  --text-weak: #8A8F89;
  --border-light: #E4E2DA;
  --border-dark: rgba(0, 0, 0, 0.3);
  --radius-xs: 4px;
  --radius-card: 14px;
  --radius-btn: 999px;
  --radius-block: 20px;
  --shadow-card: 0 12px 30px rgba(23, 26, 23, 0.10);
  --shadow-hover: 0 18px 42px rgba(23, 26, 23, 0.16);
  --shadow-nav: 0 8px 30px rgba(23, 26, 23, 0.18);
  --font-main: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --space-section: clamp(4rem, 8vw, 7rem);
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-main);
  background: var(--bg-warm);
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "tnum";
}
img {
  max-width: 100%;
  display: block;
  object-fit: cover;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(227, 49, 43, 0.5);
  outline-offset: 2px;
}
ul {
  list-style: none;
}
button {
  font-family: var(--font-main);
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
@media (max-width: 767px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
}
.site-header {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 20px;
}
.nav-capsule {
  max-width: 1220px;
  margin: 0 auto;
  background: rgba(23, 26, 23, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 8px 12px 8px 20px;
  box-shadow: var(--shadow-nav);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex-shrink: 0;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: .02em;
  flex-shrink: 0;
}
.brand-name {
  color: #fff;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: .02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.site-nav {
  margin-left: auto;
}
.site-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}
.site-nav .nav-link {
  display: inline-block;
  padding: 8px 16px;
  color: rgba(255, 255, 255, 0.82);
  border-radius: 999px;
  font-size: .93rem;
  font-weight: 600;
  letter-spacing: .02em;
  transition: background .2s, color .2s, box-shadow .2s;
}
.site-nav .nav-link:hover {
  color: #fff;
  background: rgba(227, 49, 43, 0.35);
}
.site-nav .nav-link.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 4px 14px rgba(227, 49, 43, 0.35);
}
.site-nav .nav-link.active:hover {
  background: var(--primary-dark);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #171A17;
  font-weight: 800;
  font-size: .92rem;
  padding: 9px 22px;
  border-radius: 999px;
  letter-spacing: .02em;
  transition: background .2s, transform .2s, box-shadow .2s;
  white-space: nowrap;
  flex-shrink: 0;
}
.nav-cta:hover {
  background: #c5e040;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(217, 242, 75, 0.25);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  color: #fff;
  flex-shrink: 0;
}
.nav-toggle svg {
  width: 22px;
  height: 22px;
}
@media (max-width: 1000px) {
  .nav-capsule {
    flex-wrap: wrap;
    border-radius: 18px;
    gap: 10px;
    padding: 8px 12px;
  }
  .site-nav {
    order: 4;
    margin: 0;
    width: 100%;
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease, margin .25s ease, padding .25s ease;
  }
  .site-nav.open {
    max-height: 320px;
    margin-top: 4px;
    padding-top: 6px;
  }
  .site-nav ul {
    flex-direction: column;
    gap: 4px;
    padding-bottom: 8px;
  }
  .site-nav .nav-link {
    width: 100%;
    text-align: center;
  }
  .nav-toggle {
    display: flex;
    margin-left: auto;
  }
}
@media (max-width: 640px) {
  .site-header {
    top: 10px;
    padding: 0 12px;
  }
  .brand-name {
    font-size: 1rem;
  }
  .brand-mark {
    width: 34px;
    height: 34px;
    font-size: .9rem;
  }
  .nav-cta {
    padding: 7px 16px;
    font-size: .85rem;
  }
}
.breadcrumb-bar {
  background: var(--bg-deep);
  padding: 120px 0 30px;
  background-image: linear-gradient(135deg, rgba(23,26,23,0.92) 0%, rgba(23,26,23,0.72) 60%, rgba(227,49,43,0.25) 100%), url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  border-bottom: 3px solid var(--primary);
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: .88rem;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 14px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.8);
  transition: color .2s;
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb .sep {
  color: rgba(255, 255, 255, 0.3);
}
.breadcrumb .current {
  color: var(--accent);
  font-weight: 600;
}
.article-header-meta {
  margin-top: 18px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: .9rem;
  color: rgba(255, 255, 255, 0.62);
}
.article-header-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-header-meta svg {
  width: 15px;
  height: 15px;
  opacity: 0.7;
}
.article-page-content {
  padding: 60px 0 40px;
  background: var(--bg-warm);
}
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 325px;
  gap: 42px;
  align-items: start;
}
@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
  }
}
.article-main {
  background: var(--bg-card);
  border-radius: var(--radius-block);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  border: 1px solid var(--border-light);
}
.article-body-wrap {
  padding: clamp(28px, 5vw, 52px);
}
.article-title {
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  line-height: 1.3;
  font-weight: 850;
  letter-spacing: 0.01em;
  color: var(--text-main);
  margin-bottom: 10px;
}
.article-only-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.35;
  font-weight: 800;
  color: var(--text-main);
  padding: 40px 28px;
}
.article-side {
  position: sticky;
  top: 110px;
}
@media (max-width: 1024px) {
  .article-side {
    position: static;
  }
}
.side-box {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 28px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-card);
  margin-bottom: 20px;
}
.side-box-title {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 18px;
  letter-spacing: .02em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.side-box-title::before {
  content: '';
  width: 4px;
  height: 18px;
  background: var(--primary);
  border-radius: 2px;
}
.side-link-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.side-link-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--text-sub);
  font-size: .92rem;
  line-height: 1.5;
  transition: background .2s, color .2s, transform .2s;
  background: transparent;
}
.side-link-list a::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--border-light);
  border-radius: 50%;
  flex-shrink: 0;
  transform: translateY(2px);
  transition: background .2s;
}
.side-link-list a:hover {
  background: var(--primary-light);
  color: var(--primary);
  transform: translateX(3px);
}
.side-link-list a:hover::before {
  background: var(--primary);
}
.side-cat-tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: var(--radius-btn);
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 700;
  font-size: .83rem;
  letter-spacing: .03em;
}
.article-not-found {
  padding: 40px 28px;
  text-align: center;
}
.not-found-card {
  background: var(--bg-card);
  border: 2px dashed var(--border-light);
  border-radius: var(--radius-block);
  padding: 70px 30px;
  text-align: center;
}
.not-found-card .nf-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
}
.not-found-card .nf-text {
  color: var(--text-weak);
  margin-bottom: 28px;
}
.btn-sub {
  display: inline-block;
  padding: 11px 30px;
  border: 1.5px solid var(--text-main);
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: .95rem;
  color: var(--text-main);
  transition: border-color .2s, background .2s, color .2s;
}
.btn-sub:hover {
  background: var(--text-main);
  color: #fff;
}
.bottom-nav-wrap {
  display: flex;
  justify-content: center;
  padding: 36px 30px;
  border-top: 1px solid var(--border-light);
  background: #fcfcfb;
}
.back-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-deep);
  color: #fff;
  padding: 12px 30px;
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: .95rem;
  transition: background .2s, transform .2s, box-shadow .2s;
}
.back-link-btn:hover {
  background: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(227, 49, 43, 0.3);
}
.site-cta {
  background: var(--bg-deep);
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.site-cta .cta-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center 70%;
  opacity: 0.35;
  filter: grayscale(30%);
}
.cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 80px 24px;
  flex-wrap: wrap;
}
.cta-title {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 850;
  color: #fff;
  letter-spacing: .01em;
  max-width: 500px;
  line-height: 1.3;
}
.cta-title em {
  color: var(--accent);
  font-style: normal;
}
.cta-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.cta-btn-main {
  background: var(--accent);
  color: #171A17;
  font-weight: 800;
  padding: 13px 34px;
  border-radius: var(--radius-btn);
  font-size: 1.02rem;
  transition: transform .2s, background .2s, box-shadow .2s;
}
.cta-btn-main:hover {
  background: #c5e040;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(217, 242, 75, 0.3);
}
.cta-btn-sub {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  font-weight: 700;
  padding: 11px 30px;
  border-radius: var(--radius-btn);
  font-size: .98rem;
  transition: background .2s, border-color .2s, color .2s;
}
.cta-btn-sub:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
@media (max-width: 640px) {
  .cta-buttons {
    flex-direction: column;
    width: 100%;
  }
  .cta-btn-main, .cta-btn-sub {
    text-align: center;
    width: 100%;
  }
}
.site-footer {
  background: #171A17;
  padding: 70px 0 26px;
  color: rgba(255, 255, 255, 0.7);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 60px;
  padding-bottom: 38px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
@media (max-width: 768px) {
  .footer-top {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--primary);
  border-radius: 9px;
  font-weight: 800;
  color: #fff;
  font-size: 1rem;
}
.footer-logo > span:last-child {
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
}
.footer-brand p {
  color: rgba(255, 255, 255, 0.62);
  font-size: .93rem;
  line-height: 1.8;
  max-width: 440px;
}
.footer-links p {
  color: rgba(255, 255, 255, 0.65);
  font-size: .92rem;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.62);
}
.footer-links a:hover {
  color: var(--accent);
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 26px;
  font-size: .84rem;
  color: rgba(255, 255, 255, 0.45);
  flex-wrap: wrap;
}
.footer-tech {
  font-family: monospace;
}
@media (max-width: 640px) {
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* roulang page: category2 */
:root {
  --red: #e3312b;
  --yellow: #d9f24b;
  --ink: #171a17;
  --paper: #f5f4f0;
  --card: #ffffff;
  --text: #1e211e;
  --muted: #6f766e;
  --line: #e4e2da;
  --line-dark: rgba(255,255,255,.14);
  --shadow: 0 12px 30px rgba(23,26,23,.1);
  --shadow-lg: 0 18px 48px rgba(23,26,23,.16);
  --radius-xs: 4px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --space-section: clamp(72px, 9vw, 128px);
  --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--paper);
  -webkit-font-smoothing: antialiased;
}
body.nav-open { overflow: hidden; }
img { max-width: 100%; display: block; border: 0; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; border: 0; background: none; cursor: pointer; }
h1, h2, h3, h4, p, ul, ol { margin: 0; }
ul { padding: 0; list-style: none; }
:focus-visible { outline: 3px solid rgba(227,49,43,.65); outline-offset: 3px; border-radius: 4px; }

.container {
  width: min(1200px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: transform .3s;
}
.nav-capsule {
  width: min(1200px, calc(100% - 40px));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 8px 10px 8px 18px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 999px;
  background-color: rgba(23,26,23,.82);
  box-shadow: 0 16px 40px rgba(0,0,0,.25);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.scrolled .nav-capsule {
  background-color: rgba(23,26,23,.94);
  box-shadow: 0 20px 44px rgba(0,0,0,.32);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  color: #fff;
}
.brand-mark,
.footer-mark {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: var(--red);
  color: #fff;
  font-size: .9rem;
  font-weight: 900;
  letter-spacing: .04em;
  font-feature-settings: "tnum";
  box-shadow: inset 0 -2px 0 rgba(0,0,0,.22);
}
.brand-name {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: .03em;
  white-space: nowrap;
  color: #fff;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 17px;
  border-radius: 999px;
  color: rgba(255,255,255,.82);
  font-size: .93rem;
  font-weight: 600;
  transition: background .22s, color .22s, box-shadow .22s;
}
.nav-link:hover {
  background: rgba(227,49,43,.16);
  color: #fff;
}
.nav-link:active { transform: scale(.97); }
.nav-link.active,
.nav-link[aria-current="page"] {
  background: var(--red);
  color: #fff;
  box-shadow: 0 8px 20px rgba(227,49,43,.28);
}
.nav-cta {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: 4px;
  padding: 9px 22px;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 999px;
  color: #fff;
  background: rgba(255,255,255,.08);
  font-size: .92rem;
  font-weight: 700;
  transition: background .22s, border .22s, transform .2s;
}
.nav-cta:hover {
  border-color: var(--yellow);
  background: rgba(217,242,75,.14);
}
.nav-cta:active { transform: scale(.97); }
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  color: #fff;
  background: rgba(255,255,255,.08);
  transition: background .2s;
}
.nav-toggle:hover { background: rgba(227,49,43,.45); }
.nav-toggle svg { width: 24px; height: 24px; }

@media (max-width: 900px) {
  .site-nav,
  .nav-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-capsule { padding-left: 12px; }
  .site-nav.open {
    position: absolute;
    top: calc(100% + 10px);
    left: 20px;
    right: 20px;
    display: block;
    background: rgba(23,26,23,.97);
    border: 1px solid var(--line-dark);
    box-shadow: var(--shadow-lg);
    border-radius: 20px;
    padding: 12px;
  }
  .site-nav.open ul {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }
  .site-nav.open .nav-link {
    justify-content: flex-start;
    width: 100%;
    border-radius: 12px;
    padding: 13px 16px;
    color: #fff;
  }
  .nav-capsule {
    width: min(1200px, calc(100% - 24px));
  }
}

/* hero */
.cat-hero {
  position: relative;
  background-color: var(--ink);
  background-image:
    linear-gradient(90deg, rgba(23,26,23,.92) 0%, rgba(23,26,23,.68) 52%, rgba(23,26,23,.78) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-position: center;
  background-size: cover;
  color: #fff;
  overflow: hidden;
  padding: clamp(130px, 18vw, 195px) 0 90px;
  border-bottom: 5px solid var(--red);
}
.cat-hero::after {
  content: "";
  position: absolute;
  right: -140px;
  bottom: -120px;
  width: 430px;
  height: 430px;
  border-radius: 44% 56% 60% 40%;
  background: rgba(217,242,75,.1);
  transform: rotate(20deg);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, .7fr);
  gap: clamp(32px, 6vw, 92px);
  align-items: center;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  color: rgba(255,255,255,.62);
  font-size: .82rem;
  letter-spacing: .04em;
}
.breadcrumb a:hover { color: var(--yellow); }
.hero-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--yellow);
  font-weight: 800;
  font-size: .9rem;
  letter-spacing: .22em;
}
.hero-kicker::before {
  content: "";
  width: 28px;
  height: 3px;
  background: var(--red);
  border-radius: 99px;
}
.cat-hero h1 {
  margin-bottom: 24px;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.18;
  letter-spacing: .01em;
  font-weight: 900;
  text-wrap: balance;
}
.hero-brand-line {
  display: block;
  margin-top: 5px;
  color: var(--yellow);
  font-size: clamp(1.05rem, 2vw, 1.65rem);
  letter-spacing: .12em;
}
.hero-lead {
  max-width: 690px;
  color: rgba(255,255,255,.78);
  font-size: 1.02rem;
  line-height: 1.9;
  margin-bottom: 30px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 46px;
  padding: 10px 24px;
  border-radius: 999px;
  font-size: .95rem;
  font-weight: 800;
  line-height: 1;
  transition: transform .22s, box-shadow .22s, background .22s, border .22s;
}
.btn:active { transform: translateY(2px) scale(.98); }
.btn-red {
  background: var(--red);
  color: #fff;
  box-shadow: 0 12px 28px rgba(227,49,43,.35);
}
.btn-red:hover {
  background: #c72922;
  box-shadow: var(--shadow-lg);
}
.btn-ghost-light {
  border: 1px solid rgba(255,255,255,.4);
  color: #fff;
  background: rgba(255,255,255,.04);
}
.btn-ghost-light:hover {
  border-color: var(--yellow);
  color: var(--yellow);
  background: rgba(217,242,75,.08);
}
.hero-info {
  position: relative;
  z-index: 2;
}
.info-card-list {
  display: grid;
  gap: 13px;
}
.mini-info-card {
  position: relative;
  padding: 17px 18px 17px 44px;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 16px;
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(6px);
  transition: border-color .2s, background .2s;
}
.mini-info-card:hover {
  background: rgba(255,255,255,.13);
  border-color: var(--yellow);
}
.mini-info-card strong {
  display: block;
  color: #fff;
  font-size: 1rem;
  margin-bottom: 4px;
}
.mini-info-card span {
  color: rgba(255,255,255,.68);
  font-size: .85rem;
  line-height: 1.6;
}
.icon-dot {
  position: absolute;
  left: 18px;
  top: 18px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 4px rgba(227,49,43,.18);
}
.icon-dot.green { background: var(--yellow); box-shadow: 0 0 0 4px rgba(217,242,75,.16); }

/* generic sections */
.section-block { padding: var(--space-section) 0; }
.bg-light { background: var(--paper); }
.bg-white { background: #fff; }
.section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--red);
  font-weight: 900;
  font-size: .82rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-label::before {
  content: "";
  width: 26px;
  height: 3px;
  background: var(--red);
  border-radius: 99px;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: .02em;
  color: var(--text);
}
.section-title.light { color: #fff; }
.section-lead {
  margin-top: 16px;
  max-width: 760px;
  color: var(--muted);
  font-size: 1.02rem;
}
.section-title.light + .section-lead.light { color: rgba(255,255,255,.68); }

/* split feature */
.split-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: clamp(36px, 6vw, 100px);
  align-items: center;
}
.feature-copy p { color: var(--muted); }
.feature-copy .section-title { margin-bottom: 24px; }
.feature-copy .main-desc { margin-bottom: 22px; }
.check-list {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}
.check-list li {
  position: relative;
  padding-left: 30px;
  color: var(--text);
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 5px;
  width: 15px;
  height: 8px;
  border-left: 3px solid var(--red);
  border-bottom: 3px solid var(--red);
  transform: rotate(-45deg);
  border-radius: 1px;
}
.check-list strong {
  color: var(--ink);
  font-weight: 800;
}
.check-list span {
  display: block;
  color: var(--muted);
  font-size: .92rem;
  margin-top: 2px;
}
.feature-media { position: relative; }
.media-frame {
  position: relative;
  overflow: hidden;
  border-radius: 22px;
  box-shadow: var(--shadow-lg);
  background: #e8e6df;
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 22px;
  pointer-events: none;
}
.media-frame img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.feature-tag {
  position: absolute;
  left: -8px;
  top: 22px;
  z-index: 2;
  padding: 9px 19px;
  background: var(--red);
  color: #fff;
  font-size: .84rem;
  font-weight: 800;
  border-radius: 8px 14px 14px 8px;
  box-shadow: 0 12px 24px rgba(23,26,23,.2);
}
.feature-note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 22px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 14px;
  color: var(--muted);
  font-size: .88rem;
  line-height: 1.7;
  box-shadow: var(--shadow);
}
.feature-note::before {
  content: "现场";
  flex: 0 0 auto;
  margin-top: 2px;
  padding: 2px 8px;
  border-radius: 5px;
  background: var(--yellow);
  color: var(--ink);
  font-size: .72rem;
  font-weight: 900;
}

/* direction cards */
.direction-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 4vw, 44px);
  margin-top: 54px;
}
.direction-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow);
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.direction-card:hover {
  transform: translateY(-5px);
  border-color: rgba(227,49,43,.5);
  box-shadow: var(--shadow-lg);
}
.direction-card:hover .card-img img {
  transform: scale(1.05);
}
.card-img {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background-color: #e9e8e2;
}
.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s cubic-bezier(.2,.7,.2,1);
}
.card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 24px 22px;
}
.card-badge {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .14em;
  margin-bottom: 13px;
}
.badge-red { background: rgba(227,49,43,.1); color: var(--red); }
.badge-dark { background: rgba(23,26,23,.08); color: var(--ink); }
.card-body h3 {
  font-size: 1.28rem;
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 12px;
  color: var(--ink);
}
.card-body p {
  color: var(--muted);
  margin-bottom: 18px;
}
.card-action {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  color: var(--red);
  font-size: .92rem;
}
.card-action svg { transition: transform .2s; }
.card-action:hover svg { transform: translateX(5px); }

/* content path strip */
.path-strip {
  background: var(--ink);
  color: #fff;
  padding: var(--space-section) 0;
  position: relative;
  overflow: hidden;
}
.path-strip::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(115deg, rgba(217,242,75,.08) 0, transparent 30%), url("/assets/images/backpic/back-1.png");
  background-size: cover;
  background-position: center;
  opacity: .35;
}
.path-grid-wrap {
  position: relative;
  z-index: 2;
}
.path-grid-wrap .section-label { color: var(--yellow); }
.path-grid-wrap .section-label::before { background: var(--yellow); }
.path-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 52px;
}
.path-item {
  padding: 22px 18px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 18px;
  background: rgba(255,255,255,.06);
  transition: transform .25s, background .25s, border-color .25s;
}
.path-item:hover {
  transform: translateY(-6px);
  border-color: var(--yellow);
  background: rgba(255,255,255,.12);
}
.path-index {
  font-size: .85rem;
  font-weight: 900;
  letter-spacing: .18em;
  color: var(--yellow);
  margin-bottom: 14px;
}
.path-item h3 {
  font-size: 1.02rem;
  font-weight: 800;
  margin-bottom: 7px;
  color: #fff;
}
.path-item p {
  color: rgba(255,255,255,.68);
  font-size: .85rem;
  line-height: 1.7;
}

/* faq */
.faq-wrap {
  display: grid;
  gap: 12px;
  margin-top: 48px;
}
.faq-item {
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
  transition: border-color .25s, box-shadow .25s;
}
.faq-item[open] { border-color: rgba(227,49,43,.45); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 19px 22px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.5;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--red); }
.faq-mark {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 27px;
  height: 27px;
  border-radius: 50%;
  background: var(--red);
  color: #fff;
  font-size: 1.05rem;
  font-weight: 500;
  transition: transform .25s;
}
.faq-item[open] .faq-mark { transform: rotate(45deg); }
.faq-answer {
  padding: 0 22px 20px;
  color: var(--muted);
  font-size: .94rem;
  line-height: 1.8;
  max-width: 920px;
}
.faq-answer strong { color: var(--ink); }
.faq-note {
  margin-top: 18px;
  padding: 14px 18px;
  border-left: 4px solid var(--yellow);
  background: rgba(217,242,75,.12);
  border-radius: 4px 12px 12px 4px;
  color: #4c4e46;
  font-size: .9rem;
}

/* cta */
.cta-band {
  padding: var(--space-section) 0;
  background-color: #191c19;
  color: #fff;
  position: relative;
  isolation: isolate;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(90deg, rgba(23,26,23,.94) 0, rgba(23,26,23,.55) 100%), url("/assets/images/backpic/back-3.png");
  background-size: cover;
  background-position: center 42%;
  opacity: .7;
}
.cta-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
}
.cta-heading {
  max-width: 720px;
}
.cta-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--yellow);
  font-size: .85rem;
  font-weight: 900;
  letter-spacing: .16em;
  margin-bottom: 15px;
}
.cta-heading h2 {
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1.2;
  font-weight: 900;
  margin-bottom: 17px;
}
.cta-heading p {
  color: rgba(255,255,255,.72);
  font-size: 1.04rem;
}
.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.btn-yellow {
  background: var(--yellow);
  color: var(--ink);
  box-shadow: 0 12px 26px rgba(217,242,75,.2);
}
.btn-yellow:hover { background: #e4fb62; }
.btn-dark { background: rgba(255,255,255,.1); color: #fff; border: 1px solid rgba(255,255,255,.33); }
.btn-dark:hover { border-color: var(--yellow); background: rgba(255,255,255,.14); color: var(--yellow);}

/* footer shared */
.site-footer {
  background: #111411;
  color: rgba(255,255,255,.65);
  padding: 66px 0 26px;
}
.site-footer .container {
  display: grid;
  gap: 42px;
}
.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr);
  gap: clamp(30px, 6vw, 90px);
}
.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: #fff;
  font-weight: 800;
  font-size: 1.04rem;
  margin-bottom: 15px;
}
.footer-mark {
  width: 36px;
  height: 36px;
  border-radius: 9px;
}
.footer-brand p {
  color: rgba(255,255,255,.58);
  font-size: .92rem;
  line-height: 1.8;
}
.footer-links h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 14px;
}
.footer-links a {
  color: rgba(255,255,255,.66);
  font-size: .9rem;
  transition: color .2s, background .2s;
}
.footer-links a:hover {
  color: var(--yellow);
}
.footer-note {
  margin-top: 7px;
  font-size: .84rem;
  color: rgba(255,255,255,.42);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.1);
  color: rgba(255,255,255,.5);
  font-size: .84rem;
}
.footer-tech {
  font-feature-settings: "tnum";
  letter-spacing: .03em;
}

/* responsive */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .info-card-list {
    grid-template-columns: repeat(3, 1fr);
  }
  .split-feature {
    grid-template-columns: 1fr;
  }
  .path-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 768px) {
  body { font-size: 15px; }
  .container { width: min(100% - 32px, 1200px); }
  .nav-capsule { width: calc(100% - 28px); }
  .info-card-list { grid-template-columns: 1fr; }
  .direction-grid { grid-template-columns: 1fr; }
  .path-grid { grid-template-columns: 1fr; }
  .path-item { padding: 18px 16px; }
  .split-feature { gap: 38px; }
  .feature-tag { left: -4px; }
  .section-title { letter-spacing: .01em; }
  .faq-item summary { padding: 16px 15px; }
  .faq-answer { padding: 0 16px 18px; }
  .footer-top { grid-template-columns: 1fr; }
  .hero-actions .btn { flex: 1 1 100%; }
  .cta-grid { flex-direction: column; align-items: flex-start; }
  .brand-name { font-size: .88rem; }
  .brand-mark { width: 34px; height: 34px; font-size: .8rem; }
}
@media (max-width: 520px) {
  .cat-hero { padding-top: 120px; padding-bottom: 48px; }
  .cat-hero h1 { font-size: 2rem; }
  .mini-info-card span { font-size: .82rem; }
  .section-block { padding: 60px 0; }
  .path-grid { gap: 10px; }
  .brand-name { max-width: 46vw; overflow: hidden; text-overflow: ellipsis; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001s !important; transition-duration: .001s !important; scroll-behavior: auto !important; }
}

/* roulang page: category1 */
:root {
  --red: #E3312B;
  --red-dark: #BC211D;
  --lime: #D9F24B;
  --dark: #171A17;
  --dark-2: #1F241F;
  --surface: #F5F4F0;
  --white: #FFFFFF;
  --text: #20241F;
  --muted: #747B73;
  --line: #E4E2DA;
  --radius-sm: 4px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow: 0 12px 30px rgba(23, 26, 23, .10);
  --shadow-lg: 0 18px 42px rgba(23, 26, 23, .16);
  --font: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body, h1, h2, h3, h4, p, ul, ol, blockquote, figure {
  margin: 0;
}
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
}
img {
  display: block;
  max-width: 100%;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
  border: 0;
  background: none;
}
ul, ol {
  padding: 0;
}
li {
  list-style: none;
}
[id] {
  scroll-margin-top: 140px;
}
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid var(--lime);
  outline-offset: 3px;
  border-radius: 6px;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(16px, 3vw, 32px);
}

.site-header {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  z-index: 120;
  padding: 0 14px;
}
.nav-capsule {
  position: relative;
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 10px 14px 10px 12px;
  border-radius: 999px;
  background: rgba(23, 26, 23, .84);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, .09);
  box-shadow: 0 10px 30px rgba(23, 26, 23, .18);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  padding: 6px 4px;
}
.brand-mark {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--red);
  color: #fff;
  font-weight: 900;
  letter-spacing: .03em;
  font-size: .94rem;
  box-shadow: 0 0 0 3px rgba(227, 49, 43, .18);
}
.brand-name {
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  line-height: 1.25;
  letter-spacing: .02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.site-nav {
  margin-left: auto;
}
.site-nav ul {
  display: flex;
  gap: 4px;
  margin: 0;
}
.site-nav a.nav-link {
  display: inline-block;
  padding: 9px 18px;
  border-radius: 999px;
  color: rgba(255, 255, 255, .88);
  font-weight: 600;
  font-size: .94rem;
  transition: background .2s, color .2s, box-shadow .2s;
}
.site-nav a:hover {
  background: rgba(255, 255, 255, .1);
  color: #fff;
}
.site-nav a.active {
  background: var(--red);
  color: #fff;
  box-shadow: 0 6px 18px rgba(227, 49, 43, .36);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--red);
  color: #fff;
  padding: 10px 22px;
  font-weight: 700;
  font-size: .95rem;
  transition: transform .2s, background .2s, box-shadow .2s;
  white-space: nowrap;
}
.nav-cta:hover {
  background: #e94740;
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(227, 49, 43, .32);
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #fff;
  background: rgba(255, 255, 255, .1);
  cursor: pointer;
}
.nav-toggle svg {
  width: 22px;
  height: 22px;
}

.category-hero {
  position: relative;
  min-height: 72vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
  padding: 160px 0 76px;
  background:
    linear-gradient(82deg, rgba(23, 26, 23, .96) 0%, rgba(31, 36, 31, .82) 52%, rgba(23, 26, 23, .58) 100%),
    url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  background-color: var(--dark);
}
.category-hero:before {
  content: "";
  position: absolute;
  right: -100px;
  top: 18%;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217, 242, 75, .16), transparent 70%);
  pointer-events: none;
}
.hero-layout {
  position: relative;
  z-index: 2;
  width: 100%;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  align-items: center;
  font-size: .92rem;
  color: rgba(255, 255, 255, .7);
  margin-bottom: 24px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, .78);
  transition: color .2s;
}
.breadcrumb a:hover {
  color: var(--lime);
}
.hero-caption {
  max-width: 800px;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .12);
  color: rgba(255, 255, 255, .78);
  font-size: .88rem;
  font-weight: 600;
}
.kicker-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime);
}
.hero-caption h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.12;
  font-weight: 900;
  letter-spacing: .02em;
  margin: 22px 0 12px;
}
.hero-caption h1:after {
  content: "";
  display: block;
  width: 70px;
  height: 6px;
  border-radius: 999px;
  background: var(--red);
  margin-top: 20px;
}
.hero-caption > p {
  max-width: 660px;
  margin-top: 20px;
  color: rgba(255, 255, 255, .88);
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform .2s, background .2s, color .2s, border-color .2s, box-shadow .2s;
}
.btn svg {
  width: 18px;
  height: 18px;
}
.btn-primary {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
  box-shadow: 0 10px 24px rgba(227, 49, 43, .28);
}
.btn-primary:hover {
  background: var(--red-dark);
  border-color: var(--red-dark);
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(227, 49, 43, .34);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, .5);
}
.btn-outline:hover {
  border-color: var(--lime);
  color: var(--lime);
  transform: translateY(-2px);
}
.btn-lime {
  background: var(--lime);
  color: var(--dark);
  border-color: var(--lime);
  box-shadow: 0 10px 28px rgba(217, 242, 75, .16);
}
.btn-lime:hover {
  background: #e4fb62;
  transform: translateY(-2px);
}
.btn-ghost-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, .48);
}
.btn-ghost-light:hover {
  border-color: #fff;
  color: #fff;
  transform: translateY(-2px);
}
.btn-dark-outline {
  background: transparent;
  color: var(--dark);
  border-color: rgba(23, 26, 23, .35);
}
.btn-dark-outline:hover {
  border-color: var(--red);
  color: var(--red);
  transform: translateY(-2px);
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
  color: rgba(255, 255, 255, .72);
  font-size: .88rem;
}
.hero-meta i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--lime);
  align-self: center;
}

.section {
  padding: clamp(66px, 9vw, 116px) 0;
}
.section-light {
  background: #fff;
}
.section-head {
  max-width: 760px;
  margin-bottom: 44px;
}
.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--red);
  font-weight: 800;
  letter-spacing: .08em;
  font-size: .92rem;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.eyebrow:before {
  content: "";
  width: 24px;
  height: 3px;
  background: var(--red);
  border-radius: 999px;
}
.eyebrow.light {
  color: var(--lime);
}
.eyebrow.light:before {
  background: var(--lime);
}
.section-head h2 {
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  line-height: 1.25;
  letter-spacing: .02em;
  font-weight: 900;
  color: var(--text);
}
.section-head p:not(.eyebrow) {
  margin-top: 14px;
  color: var(--muted);
  font-size: 1.02rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
}
.media-block {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.media-block img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}
.media-block:after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 24px;
  pointer-events: none;
}
.media-badge {
  position: absolute;
  left: 18px;
  bottom: 18px;
  background: rgba(23, 26, 23, .78);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: .88rem;
  font-weight: 600;
  border-radius: 999px;
  padding: 8px 16px;
  border: 1px solid rgba(255, 255, 255, .1);
}
.intro-copy h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  line-height: 1.3;
  font-weight: 900;
  margin-bottom: 18px;
}
.intro-copy > p {
  color: var(--muted);
  margin-bottom: 16px;
}
.checklist {
  display: grid;
  gap: 10px;
  margin: 24px 0;
}
.checklist li {
  position: relative;
  padding-left: 32px;
  font-weight: 500;
}
.checklist li:before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--red);
  font-weight: 900;
}
.quote-card {
  background: var(--dark);
  border-left: 4px solid var(--lime);
  border-radius: 16px;
  color: #fff;
  padding: 20px 24px;
  font-weight: 500;
  margin-top: 26px;
  box-shadow: var(--shadow);
}
.quote-card strong {
  color: var(--lime);
  font-weight: 800;
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}
.scene-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.scene-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(227, 49, 43, .35);
}
.scene-media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--line);
}
.scene-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.scene-card:hover .scene-media img {
  transform: scale(1.05);
}
.scene-tag {
  position: absolute;
  left: 14px;
  top: 14px;
  background: rgba(23, 26, 23, .78);
  color: #fff;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: .82rem;
  font-weight: 700;
  backdrop-filter: blur(6px);
}
.scene-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 22px 22px 24px;
}
.scene-body h3 {
  font-size: 1.22rem;
  font-weight: 800;
  margin-bottom: 10px;
}
.scene-body > p {
  color: var(--muted);
  font-size: .96rem;
  margin-bottom: 16px;
}
.scene-list {
  display: grid;
  gap: 7px;
  margin: 0 0 20px;
}
.scene-list span {
  font-size: .9rem;
  color: var(--text);
  display: flex;
  gap: 7px;
  align-items: flex-start;
}
.scene-list span:before {
  content: "·";
  color: var(--red);
  font-weight: 900;
}
.card-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: .94rem;
  color: var(--red);
  transition: gap .2s, color .2s;
}
.card-link:hover {
  gap: 10px;
  color: var(--red-dark);
}
.card-link svg {
  width: 16px;
  height: 16px;
}

.assurance {
  background: var(--dark);
  color: #fff;
  padding: 64px 0;
}
.assurance-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}
.assure-item {
  padding: 28px 22px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .09);
  border-radius: 16px;
  transition: border-color .2s, background .2s;
}
.assure-item:hover {
  background: rgba(255, 255, 255, .08);
  border-color: rgba(217, 242, 75, .3);
}
.assure-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(217, 242, 75, .1);
  color: var(--lime);
  margin-bottom: 16px;
}
.assure-icon svg {
  width: 22px;
  height: 22px;
}
.assure-item h3 {
  font-size: 1.06rem;
  font-weight: 800;
  margin-bottom: 8px;
}
.assure-item p {
  color: rgba(255, 255, 255, .66);
  font-size: .92rem;
  line-height: 1.7;
}

.steps-section {
  background: #F0EEE8;
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}
.step-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: transform .25s, box-shadow .25s;
}
.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 30px;
  padding: 0 8px;
  background: rgba(227, 49, 43, .1);
  color: var(--red);
  font-weight: 900;
  font-size: .95rem;
  border-radius: 999px;
  margin-bottom: 18px;
}
.step-card h3 {
  font-size: 1.14rem;
  font-weight: 800;
  margin-bottom: 10px;
}
.step-card p {
  color: var(--muted);
  font-size: .92rem;
}

.mid-cta {
  position: relative;
  padding: clamp(72px, 8vw, 110px) 0;
  color: #fff;
  background:
    linear-gradient(100deg, rgba(23, 26, 23, .94) 0%, rgba(23, 26, 23, .78) 55%, rgba(31, 36, 31, .72) 100%),
    url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  background-color: var(--dark);
}
.mid-cta-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
}
.mid-cta h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 900;
  line-height: 1.25;
  margin: 14px 0 14px 0;
}
.mid-cta .lead {
  color: rgba(255, 255, 255, .78);
  max-width: 640px;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.faq-wrap {
  max-width: 880px;
  margin: 0 auto;
}
.faq-list {
  display: grid;
  gap: 14px;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 2px 22px;
  transition: border-color .2s, box-shadow .2s;
}
.faq-item[open] {
  border-color: rgba(227, 49, 43, .35);
  box-shadow: var(--shadow);
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  font-weight: 700;
  line-height: 1.4;
  min-height: 48px;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary:after {
  content: "+";
  flex: 0 0 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(227, 49, 43, .08);
  color: var(--red);
  font-weight: 900;
  transition: transform .2s, background .2s;
}
.faq-item[open] summary:after {
  content: "−";
  background: var(--red);
  color: #fff;
}
.faq-answer p {
  padding: 0 0 20px;
  color: var(--muted);
  max-width: 780px;
}

.final-cta {
  position: relative;
  padding: clamp(64px, 8vw, 108px) 0;
  background:
    linear-gradient(110deg, rgba(23, 26, 23, .96), rgba(23, 26, 23, .75)),
    url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  background-color: var(--dark);
  color: #fff;
}
.final-card {
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 28px;
  padding: clamp(30px, 4vw, 58px);
  overflow: hidden;
  position: relative;
}
.final-card:before {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217, 242, 75, .14), transparent 68%);
}
.final-card h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.3rem);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 14px;
}
.final-card p {
  color: rgba(255, 255, 255, .76);
  max-width: 760px;
  margin-bottom: 26px;
}
.final-card .item-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.site-footer {
  background: #171A17;
  color: rgba(255, 255, 255, .68);
  padding: 64px 0 30px;
}
.site-footer a {
  transition: color .2s;
}
.site-footer a:hover {
  color: #fff;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  padding-bottom: 42px;
}
.footer-brand {
  max-width: 440px;
}
.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 800;
  margin-bottom: 16px;
}
.footer-mark {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--red);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: .9rem;
}
.footer-brand p {
  color: rgba(255, 255, 255, .55);
  font-size: .94rem;
  line-height: 1.8;
}
.footer-links {
  min-width: 280px;
}
.footer-links h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 14px;
  font-weight: 800;
}
.footer-links-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
}
.footer-links-note {
  font-size: .88rem;
  color: rgba(255, 255, 255, .5);
  margin-top: 14px;
  line-height: 1.7;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding-top: 22px;
  font-size: .88rem;
  color: rgba(255, 255, 255, .5);
}

@media (max-width: 1080px) {
  .scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .assurance-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .steps-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .split {
    grid-template-columns: 1fr;
  }
  .media-block {
    order: -1;
    max-width: 680px;
  }
}

@media (max-width: 768px) {
  .site-header {
    top: 10px;
    padding: 0 10px;
  }
  .nav-capsule {
    gap: 10px;
    padding: 8px 10px;
  }
  .brand-name {
    font-size: .88rem;
    max-width: 155px;
  }
  .brand-mark {
    width: 34px;
    height: 34px;
    font-size: .86rem;
  }
  .site-nav {
    display: none;
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    right: 0;
    margin: 0;
    padding: 12px;
    border-radius: 20px;
    background: rgba(23, 26, 23, .96);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid rgba(255, 255, 255, .1);
  }
  .site-nav.open {
    display: block;
  }
  .site-nav ul {
    flex-direction: column;
    gap: 4px;
  }
  .site-nav a.nav-link {
    display: block;
    padding: 13px 18px;
    font-size: 1rem;
  }
  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }
  .nav-cta {
    display: none;
  }
  .category-hero {
    min-height: auto;
    padding: 150px 0 62px;
  }
  .hero-meta i {
    display: none;
  }
  .section {
    padding: 62px 0;
  }
  .scene-grid {
    gap: 18px;
  }
  .mid-cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .cta-actions {
    width: 100%;
  }
  .footer-top {
    flex-direction: column;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
  }
}

@media (max-width: 600px) {
  .brand-name {
    max-width: 126px;
  }
  .hero-caption h1 {
    font-size: 2.25rem;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .scene-grid {
    grid-template-columns: 1fr;
  }
  .assurance-grid {
    grid-template-columns: 1fr;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .cta-actions .btn {
    width: 100%;
  }
  .final-card .item-actions .btn {
    width: 100%;
  }
  .footer-links,
  .footer-brand {
    max-width: none;
  }
}