/* roulang page: index */
:root{
  --c-primary:#0B3B33;
  --c-primary-dark:#06251F;
  --c-primary-light:#145E50;
  --c-primary-8:#E7EFEC;
  --c-accent:#F0A02A;
  --c-accent-dark:#D98A16;
  --c-bg:#F6F4EF;
  --c-bg-alt:#EFEBE3;
  --c-dark:#0E1513;
  --c-card:#FFFFFF;
  --c-border:#E3DED4;
  --c-line:#EAE5DC;
  --t-main:#12181A;
  --t-sub:#5A6260;
  --t-weak:#8A918F;
  --t-inv:#F3F1EA;
  --ok:#1F7A55;
  --warn:#C9552B;
  --r-btn:12px;
  --r-card:16px;
  --r-img:12px;
  --r-block:24px;
  --r-pill:24px;
  --sh-sm:0 1px 2px rgba(18,24,26,.06);
  --sh-md:0 8px 24px rgba(11,59,51,.08);
  --sh-lg:0 18px 48px rgba(11,59,51,.12);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --bs-body-color:var(--t-main);
  --bs-body-bg:var(--c-bg);
  --bs-border-color:var(--c-border);
  --bs-link-color:var(--c-primary);
  --bs-link-hover-color:var(--c-accent-dark);
  --bs-primary:var(--c-primary);
  --bs-border-radius:var(--r-card);
  --bs-border-radius-sm:var(--r-btn);
  --bs-border-radius-lg:var(--r-block);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.75;
  color:var(--t-main);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c-accent-dark)}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.02em;line-height:1.25;margin:0;color:var(--t-main)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto}
@media(min-width:768px){.container{padding-left:32px;padding-right:32px}}
@media(min-width:1400px){.container{max-width:1280px}}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";letter-spacing:.01em}

/* ---------- 通用区块 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--c-bg-alt)}
.section-dark{background:var(--c-dark);color:var(--t-inv)}
@media(max-width:1199px){.section{padding:64px 0}}
@media(max-width:767px){.section{padding:48px 0}}
.eyebrow{
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--c-primary);font-weight:700;margin-bottom:12px;display:block
}
.section-dark .eyebrow{color:var(--c-accent)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,3.2vw,36px);margin-bottom:14px}
.section-head p{color:var(--t-sub);font-size:16px}
.section-dark .section-head p{color:#B9C4C0}
.divider{height:1px;background:var(--c-line);border:0;margin:0}

/* ---------- 按钮 ---------- */
.btn{transition:transform var(--ease),background-color var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease);border-radius:var(--r-btn);font-weight:700}
.btn-rl{display:inline-flex;align-items:center;gap:9px;border:0;padding:0 24px;height:44px;font-size:15px;cursor:pointer}
.btn-rl-lg{height:52px;padding:0 30px;font-size:16px}
.btn-rl-sm{height:36px;padding:0 18px;font-size:14px}
.btn-accent{background:var(--c-accent);color:#20180A;box-shadow:var(--sh-sm)}
.btn-accent:hover{background:var(--c-accent-dark);color:#20180A;transform:translateY(-2px);box-shadow:var(--sh-lg)}
.btn-accent:active{transform:translateY(1px);box-shadow:var(--sh-sm)}
.btn-outline-primary-rl{background:transparent;border:1.5px solid var(--c-primary);color:var(--c-primary);display:inline-flex;align-items:center;gap:9px;padding:0 24px;height:44px;font-size:15px;font-weight:700;border-radius:var(--r-btn);cursor:pointer;transition:all var(--ease)}
.btn-outline-primary-rl:hover{background:var(--c-primary-8);color:var(--c-primary);transform:translateY(-2px)}
.btn-outline-inv{background:transparent;border:1.5px solid rgba(243,241,234,.42);color:var(--t-inv);display:inline-flex;align-items:center;gap:9px;padding:0 24px;height:44px;font-size:15px;font-weight:700;border-radius:var(--r-btn);cursor:pointer;transition:all var(--ease)}
.btn-outline-inv:hover{border-color:var(--c-accent);color:var(--c-accent);transform:translateY(-2px)}
.btn-ghost{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:700;font-size:15px;background:none;border:0;padding:6px 0;cursor:pointer}
.btn-ghost svg{transition:transform var(--ease)}
.btn-ghost:hover{color:var(--c-accent-dark)}
.btn-ghost:hover svg{transform:translateX(3px)}
.btn[disabled],.btn-rl[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 徽章 / 标签 ---------- */
.badge-cat{display:inline-block;font-size:12px;font-weight:700;padding:3px 10px;border-radius:6px;background:rgba(11,59,51,.1);color:var(--c-primary)}
.badge-ver{display:inline-block;font-size:12px;font-weight:700;padding:3px 10px;border-radius:6px;background:rgba(240,160,42,.14);color:#9A6410}
.chip{display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;border:1px solid var(--c-border);background:#fff;border-radius:var(--r-pill);font-size:14px;font-weight:600;color:var(--c-primary)}
.chip:hover{border-color:var(--c-primary);background:var(--c-primary-8);color:var(--c-primary)}

/* ---------- 顶部公告条 ---------- */
.notice-bar{background:var(--c-primary-8);color:var(--c-primary);font-size:14px;min-height:40px;display:flex;align-items:center}
.notice-bar .notice-inner{display:flex;align-items:center;gap:12px;width:100%;padding-top:8px;padding-bottom:8px}
.notice-bar strong{font-weight:800}
.notice-close{margin-left:auto;background:none;border:0;color:var(--c-primary);font-size:18px;line-height:1;width:32px;height:32px;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center}
.notice-close:hover{background:rgba(11,59,51,.1)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--ease);
}
.site-header.is-stuck{box-shadow:var(--sh-md)}
.nav-inner{display:flex;align-items:center;gap:20px;height:68px}
@media(max-width:767px){.nav-inner{height:60px}}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{display:flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;background:var(--c-primary);color:#fff;font-weight:800;font-size:19px;letter-spacing:-.03em}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text .bn{font-size:17px;font-weight:800;color:var(--t-main);letter-spacing:-.01em}
.brand-text .bs{font-size:11px;color:var(--t-weak);letter-spacing:.16em;margin-top:3px}
.brand-sep{width:1px;height:26px;background:var(--c-line)}
.nav-links{display:flex;align-items:center;gap:4px;margin:0 auto}
.nav-links a{
  position:relative;font-size:15px;color:var(--t-sub);font-weight:600;
  padding:10px 12px;border-radius:8px;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-primary);font-weight:700}
.nav-links a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn-platform{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 18px;
  border-radius:var(--r-pill);border:1.5px solid var(--c-border);background:#fff;
  color:var(--c-primary);font-size:14px;font-weight:700;cursor:pointer;transition:all var(--ease)
}
.btn-platform:hover{border-color:var(--c-primary);background:var(--c-primary-8);transform:translateY(-2px)}
.btn-platform::after{content:"";width:6px;height:6px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform var(--ease)}
.btn-platform[aria-expanded="true"]::after{transform:rotate(-135deg) translateY(-2px)}
.nav-cta{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-pill);background:var(--c-accent);color:#20180A;font-weight:800;font-size:15px;box-shadow:var(--sh-sm);transition:all var(--ease)}
.nav-cta:hover{background:var(--c-accent-dark);color:#20180A;transform:translateY(-2px);box-shadow:var(--sh-lg)}
.dropdown-menu{border:1px solid var(--c-border);border-radius:14px;box-shadow:var(--sh-lg);padding:8px;font-size:14px;min-width:230px}
.dropdown-item{border-radius:9px;padding:10px 12px;color:var(--t-main);font-weight:600;display:flex;justify-content:space-between;gap:16px}
.dropdown-item:hover,.dropdown-item:focus{background:var(--c-primary-8);color:var(--c-primary)}
.dropdown-item span.meta{color:var(--t-weak);font-size:12px;font-weight:500}
.burger{display:none;width:44px;height:44px;border:1.5px solid var(--c-border);background:#fff;border-radius:12px;align-items:center;justify-content:center;cursor:pointer}
.burger span{display:block;width:18px;height:2px;background:var(--c-primary);border-radius:2px;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-primary);border-radius:2px}
.burger span::before{top:-6px}
.burger span::after{top:6px}
@media(max-width:1199px){
  .nav-links,.btn-platform{display:none}
  .burger{display:flex}
  .nav-inner{justify-content:space-between}
}
@media(max-width:500px){.nav-cta span.cta-label{display:none}.nav-cta{padding:0 15px}}
@media(max-width:991px){.nav-cta{height:42px}}

/* offcanvas */
.offcanvas{background:var(--c-bg);border-left:1px solid var(--c-line)}
.offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 20px}
.offcanvas-body{padding:20px;display:flex;flex-direction:column;gap:8px}
.offcanvas .m-link{display:flex;align-items:center;justify-content:space-between;padding:14px 14px;border-radius:12px;font-size:16px;font-weight:600;color:var(--t-main);min-height:48px}
.offcanvas .m-link:hover{background:var(--c-primary-8);color:var(--c-primary)}
.offcanvas .m-link.active{background:var(--c-primary-8);color:var(--c-primary);font-weight:800}
.offcanvas-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--c-line)}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:76px 0 84px;background:var(--c-bg);
  background-image:
    linear-gradient(to right,rgba(11,59,51,.05) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(11,59,51,.05) 1px,transparent 1px);
  background-size:56px 56px;
}
@media(max-width:991px){.hero{padding:52px 0 56px}}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:56px;align-items:center}
@media(max-width:991px){.hero-grid{grid-template-columns:1fr;gap:36px}}
.hero h1{font-size:clamp(30px,5vw,52px);margin-bottom:20px}
.hero-sub{font-size:17px;color:var(--t-sub);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.trust-row{display:flex;flex-wrap:wrap;gap:0;border:1px solid var(--c-border);background:#fff;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);max-width:600px}
.trust-item{flex:1 1 150px;padding:14px 18px;border-right:1px solid var(--c-line)}
.trust-item:last-child{border-right:0}
.trust-item .tk{font-size:12px;color:var(--t-weak);letter-spacing:.08em}
.trust-item .tv{font-size:17px;font-weight:800;color:var(--c-primary);margin-top:2px}
@media(max-width:575px){
  .trust-row{flex-direction:column}
  .trust-item{border-right:0;border-bottom:1px solid var(--c-line)}
  .trust-item:last-child{border-bottom:0}
}
.hero-visual{position:relative}
.hero-frame{
  border:1px solid var(--c-border);border-radius:var(--r-block);overflow:hidden;
  background:#fff;box-shadow:var(--sh-md);aspect-ratio:16/10
}
.hero-frame img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.hero-frame:hover img{transform:scale(1.03)}
.hero-badge{
  position:absolute;left:-12px;bottom:-16px;background:#fff;border:1px solid var(--c-border);
  border-radius:14px;padding:12px 18px;box-shadow:var(--sh-lg);display:flex;align-items:center;gap:12px
}
.hero-badge .hb-dot{width:10px;height:10px;border-radius:50%;background:var(--ok)}
.hero-badge .hb-t{font-size:13px;color:var(--t-sub)}
.hero-badge .hb-v{font-size:14px;font-weight:800;color:var(--c-primary)}
@media(max-width:575px){.hero-badge{left:8px;bottom:-14px;padding:10px 14px}}

/* ---------- 轮播 ---------- */
.shot-carousel{border-radius:var(--r-block);overflow:hidden;border:1px solid var(--c-border);background:#fff;box-shadow:var(--sh-sm)}
.shot-slide{display:grid;grid-template-columns:1.35fr 1fr;gap:0;align-items:stretch}
@media(max-width:767px){.shot-slide{grid-template-columns:1fr}}
.shot-img{aspect-ratio:16/10;overflow:hidden;background:var(--c-bg-alt)}
.shot-img img{width:100%;height:100%;object-fit:cover}
.shot-copy{padding:36px;display:flex;flex-direction:column;justify-content:center;gap:12px}
@media(max-width:767px){.shot-copy{padding:24px 20px}}
.shot-copy h3{font-size:21px}
.shot-copy p{color:var(--t-sub);font-size:15px}
.carousel-indicators{position:static;margin:0;padding:18px 0 0;gap:10px}
.carousel-indicators [data-bs-target]{width:32px;height:3px;border-radius:2px;background:rgba(11,59,51,.18);border:0;opacity:1;margin:0;transition:background var(--ease)}
.carousel-indicators .active{background:var(--c-primary)}
.carousel-control-prev,.carousel-control-next{
  width:46px;height:46px;border-radius:50%;border:1.5px solid var(--c-border);background:#fff;
  top:auto;bottom:14px;opacity:1;box-shadow:var(--sh-sm);transition:all var(--ease)
}
.carousel-control-prev{left:auto;right:76px}
.carousel-control-next{right:16px}
.carousel-control-prev:hover,.carousel-control-next:hover{border-color:var(--c-primary);background:var(--c-primary-8)}
.carousel-control-prev-icon,.carousel-control-next-icon{width:14px;height:14px;filter:invert(18%) sepia(24%) saturate(1352%) hue-rotate(126deg) brightness(93%) contrast(92%)}
@media(max-width:767px){.carousel-control-prev,.carousel-control-next{display:none}}

/* ---------- 卡片 ---------- */
.card-rl{background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-sm);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);height:100%}
.card-rl:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:#D6D0C4}
.card-rl h3{font-size:19px;margin-bottom:10px}
.card-rl p{color:var(--t-sub);font-size:15px}
.card-thumb{aspect-ratio:16/10;border-radius:var(--r-img);overflow:hidden;background:var(--c-bg-alt);margin-bottom:18px}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.card-rl:hover .card-thumb img{transform:scale(1.03)}
.card-meta{font-size:13px;color:var(--t-weak);margin-top:14px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.icon-box{width:44px;height:44px;border-radius:12px;background:var(--c-primary-8);color:var(--c-primary);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.feat-list{margin-top:16px}
.feat-list li{position:relative;padding-left:22px;font-size:15px;color:var(--t-sub);margin-bottom:8px}
.feat-list li::before{content:"";position:absolute;left:0;top:11px;width:10px;height:2px;background:var(--c-accent);border-radius:2px}
.feat-list.solid li::before{width:8px;height:8px;border-radius:50%;top:8px;background:var(--c-primary)}

/* ---------- 系统要求 ---------- */
.sys-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:24px;height:100%;box-shadow:var(--sh-sm)}
.sys-card h3{font-size:19px;display:flex;align-items:center;gap:10px;margin-bottom:6px}
.sys-card .sys-ver{font-size:13px;color:var(--t-weak);margin-bottom:16px}
.sys-card li{position:relative;padding-left:18px;font-size:14.5px;color:var(--t-sub);padding-bottom:9px}
.sys-card li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:1.5px;background:var(--c-primary);opacity:.6}
.accordion-rl .accordion-item{border:1px solid var(--c-border);border-radius:14px!important;overflow:hidden;margin-bottom:12px;background:#fff}
.accordion-rl .accordion-button{font-weight:700;font-size:16px;color:var(--t-main);background:#fff;padding:16px 18px;box-shadow:none}
.accordion-rl .accordion-button:not(.collapsed){background:var(--c-primary-8);color:var(--c-primary)}
.accordion-rl .accordion-button:focus{box-shadow:none;border-color:var(--c-border)}
.accordion-rl .accordion-button::after{background-image:none;content:"";width:11px;height:11px;border-right:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);transform:rotate(45deg);transition:transform var(--ease);margin-left:auto}
.accordion-rl .accordion-button:not(.collapsed)::after{transform:rotate(-135deg)}
.accordion-rl .accordion-body{font-size:15px;color:var(--t-sub);padding:6px 18px 20px}

/* ---------- 评价墙 ---------- */
.review-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-sm);transition:transform var(--ease),box-shadow var(--ease)}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.review-top{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.avatar{width:44px;height:44px;border-radius:50%;overflow:hidden;background:var(--c-primary-8);flex:0 0 auto}
.avatar img{width:100%;height:100%;object-fit:cover}
.review-name{font-size:15px;font-weight:800}
.review-role{font-size:13px;color:var(--t-weak)}
.stars{color:var(--c-accent);font-size:13px;letter-spacing:2px;margin-bottom:10px}
.review-card blockquote{margin:0;font-size:15px;color:var(--t-sub);line-height:1.8}
@media(min-width:992px){.review-col-offset{margin-top:32px}}

/* ---------- 资讯列表 ---------- */
.post-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:22px;height:100%;display:flex;flex-direction:column;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:#D6D0C4}
.post-card .post-title{font-size:18px;font-weight:800;line-height:1.45;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card:hover .post-title{color:var(--c-primary)}
.post-excerpt{font-size:14.5px;color:var(--t-sub);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px}
.post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--t-weak)}
.post-link{position:absolute;inset:0;z-index:2}
.post-card{position:relative}
.empty-state{grid-column:1/-1;text-align:center;padding:56px 20px;border:1px dashed var(--c-border);border-radius:var(--r-card);background:#fff}
.empty-state .es-icon{width:48px;height:48px;margin:0 auto 14px;color:var(--c-weak,#8A918F);opacity:.7}
.empty-state p{font-size:15px;color:var(--t-sub);margin-bottom:12px}

/* ---------- FAQ ---------- */
.faq-wrap .accordion-item{border:0;border-bottom:1px solid var(--c-line);border-radius:0!important;background:transparent;margin:0}
.faq-wrap .accordion-button{background:transparent;padding:22px 40px 22px 0;font-size:17px;font-weight:600;color:var(--t-main);box-shadow:none}
.faq-wrap .accordion-button:not(.collapsed){background:transparent;color:var(--c-primary)}
.faq-wrap .accordion-button::after{background-image:none;content:"";position:absolute;right:6px;width:12px;height:12px;border-right:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);transform:rotate(45deg);transition:transform var(--ease)}
.faq-wrap .accordion-button:not(.collapsed)::after{transform:rotate(-135deg)}
.faq-wrap .accordion-button:focus{box-shadow:none}
.faq-wrap .accordion-body{padding:0 40px 24px 0;font-size:15px;color:var(--t-sub);line-height:1.8}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--c-dark);color:var(--t-inv);border-radius:var(--r-block);padding:56px;position:relative;overflow:hidden}
@media(max-width:767px){.cta-band{padding:32px 22px;border-radius:var(--r-card)}}
.cta-band::before{content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;background:rgba(240,160,42,.12)}
.cta-band h2{color:#fff;font-size:clamp(24px,3.2vw,34px);margin-bottom:14px;position:relative}
.cta-band p{color:#B9C4C0;max-width:620px;position:relative}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;position:relative}
.qr-box{width:96px;height:96px;border-radius:14px;background:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden;flex:0 0 auto}
.qr-box img{width:100%;height:100%;object-fit:cover}
.cta-qr{display:flex;align-items:center;gap:16px;position:relative}
.cta-qr .qr-txt{font-size:13px;color:#B9C4C0;max-width:150px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:#C9D2CE;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
@media(max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:575px){.footer-grid{grid-template-columns:1fr}}
.footer-brand .brand-text .bn{color:#fff}
.footer-brand .brand-text .bs{color:#8FA09A}
.footer-brand .brand-mark{background:var(--c-accent);color:#20180A}
.footer-desc{font-size:14px;color:#9FADA8;margin-top:16px;max-width:300px}
.footer-col h4{font-size:14px;color:#fff;font-weight:800;margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#C9D2CE}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(243,241,234,.12);padding:22px 0;font-size:13px;color:#8FA09A;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between}
.qr-mini{width:96px;height:96px;border-radius:12px;background:#fff;overflow:hidden;margin-top:14px}
.qr-mini img{width:100%;height:100%;object-fit:cover}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms cubic-bezier(.2,.7,.3,1),transform 520ms cubic-bezier(.2,.7,.3,1)}
.reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --c-primary:#0B3B33;
  --c-primary-dark:#06251F;
  --c-primary-light:#145E50;
  --c-primary-8:#E7EFEC;
  --c-accent:#F0A02A;
  --c-accent-dark:#D8890F;
  --c-bg:#F6F4EF;
  --c-bg-alt:#EFEBE3;
  --c-dark:#0E1513;
  --c-card:#FFFFFF;
  --c-border:#E3DED4;
  --c-line:#EAE5DC;
  --t-main:#12181A;
  --t-sub:#5A6260;
  --t-weak:#8A918F;
  --t-inv:#F3F1EA;
  --c-ok:#1F7A55;
  --c-warn:#C9552B;
  --r-btn:12px;
  --r-pill:24px;
  --r-card:16px;
  --r-img:12px;
  --r-block:24px;
  --sh-sm:0 1px 2px rgba(18,24,26,.06);
  --sh-md:0 8px 24px rgba(11,59,51,.08);
  --sh-lg:0 18px 48px rgba(11,59,51,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-primary:#0B3B33;
  --bs-primary-rgb:11,59,51;
  --bs-body-color:#12181A;
  --bs-body-bg:#F6F4EF;
  --bs-border-color:#E3DED4;
  --bs-border-radius:16px;
  --bs-link-color:#0B3B33;
  --bs-link-hover-color:#F0A02A;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--t-main);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--c-accent-dark)}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1400px){.container{max-width:1280px}}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--c-primary);font-weight:700;margin-bottom:12px;
}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}

/* ---------- 按钮 ---------- */
.btn-main,.btn-line,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;
  transition:transform .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);}
.btn-main{height:48px;padding:0 26px;border-radius:var(--r-btn);background:var(--c-accent);color:#2A1B00;border:0;box-shadow:var(--sh-sm)}
.btn-main:hover{background:var(--c-accent-dark);color:#1D1200;transform:translateY(-2px);box-shadow:var(--sh-lg)}
.btn-main:active{transform:translateY(1px)}
.btn-line{height:48px;padding:0 24px;border-radius:var(--r-btn);border:1.5px solid var(--c-primary);color:var(--c-primary);background:transparent}
.btn-line:hover{background:var(--c-primary-8);color:var(--c-primary-light);transform:translateY(-2px)}
.btn-ghost{height:40px;padding:0 4px;color:var(--c-primary);background:none;border:0}
.btn-ghost svg{transition:transform .18s var(--ease)}
.btn-ghost:hover{color:var(--c-accent-dark)}
.btn-ghost:hover svg{transform:translateX(2px)}
.btn-main.sm,.btn-line.sm{height:40px;padding:0 18px;font-size:15px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .18s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-md)}
.nav-inner{display:flex;align-items:center;gap:20px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--t-main);text-decoration:none;flex:0 0 auto}
.brand:hover{color:var(--t-main)}
.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--c-primary);color:#fff;font-weight:800;font-size:17px;letter-spacing:.02em;font-family:Inter,Manrope,system-ui,sans-serif}
.brand-sep{width:1px;height:26px;background:var(--c-border);margin:0 4px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text .bn{font-size:16px;font-weight:800;letter-spacing:-.01em}
.brand-text .bs{font-size:11px;color:var(--t-weak);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:12px;flex:1 1 auto}
.nav-links a{position:relative;font-size:15px;color:var(--t-sub);padding:6px 0;font-weight:500}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease)}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-primary);font-weight:700}
.nav-links a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn-platform{height:44px;padding:0 16px;border-radius:var(--r-btn);border:1.5px solid var(--c-border);background:#fff;color:var(--c-primary);font-size:15px;font-weight:600;
  background-image:linear-gradient(transparent,transparent);transition:border-color .18s var(--ease),color .18s var(--ease),background-color .18s var(--ease)}
.btn-platform:hover{border-color:var(--c-primary);background:var(--c-primary-8);color:var(--c-primary-light)}
.nav-cta{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r-pill);background:var(--c-accent);color:#2A1B00;font-weight:700;font-size:15px;box-shadow:var(--sh-sm);transition:transform .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease)}
.nav-cta:hover{background:var(--c-accent-dark);color:#1D1200;transform:translateY(-2px);box-shadow:var(--sh-lg)}
.dropdown-menu{border:1px solid var(--c-border);border-radius:14px;box-shadow:var(--sh-md);padding:8px;min-width:236px;background:#fff}
.dropdown-item{border-radius:10px;font-size:14px;padding:10px 12px;display:flex;align-items:center;justify-content:space-between;gap:14px;color:var(--t-main)}
.dropdown-item:hover{background:var(--c-primary-8);color:var(--c-primary)}
.dropdown-item .meta{font-size:12px;color:var(--t-weak)}
.dropdown-divider{margin:6px 4px;border-color:var(--c-line)}
.burger{display:none;width:44px;height:44px;border-radius:12px;border:1.5px solid var(--c-border);background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.burger span{display:block;width:18px;height:2px;background:var(--c-primary);border-radius:2px}
.mobile-nav{background:var(--c-bg);width:min(88vw,360px)!important}
.mobile-nav .offcanvas-header{padding:18px 20px;border-bottom:1px solid var(--c-border)}
.mobile-nav .offcanvas-body{padding:16px 20px 96px;display:flex;flex-direction:column;gap:6px}
.mobile-nav a.m-link{display:block;padding:14px 12px;border-radius:12px;font-size:16px;color:var(--t-main);font-weight:600}
.mobile-nav a.m-link:hover,.mobile-nav a.m-link.active{background:var(--c-primary-8);color:var(--c-primary)}
.mobile-cta-wrap{position:fixed;left:0;right:0;bottom:0;padding:12px 20px 16px;background:rgba(246,244,239,.96);border-top:1px solid var(--c-border)}
.mobile-cta-wrap .btn-main{width:100%}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:20px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t-weak)}
.crumb a{color:var(--t-sub)}
.crumb a:hover{color:var(--c-accent-dark)}
.crumb .sep{color:#C6C1B6}
.crumb .current{color:var(--t-weak);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.article-hero{padding:28px 0 40px}
.article-hero .badge-cat{margin-bottom:14px}
.article-hero h1{font-size:clamp(28px,4vw,46px);max-width:860px;line-height:1.22}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;padding-top:18px;border-top:1px solid var(--c-line);font-size:14px;color:var(--t-weak)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#CFC9BD}
.meta-row .who{color:var(--t-sub)}
.badge-cat{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:6px;background:var(--c-primary-8);color:var(--c-primary);font-size:12px;font-weight:700}
.badge-soft{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:6px;background:rgba(240,160,42,.16);color:#8A5606;font-size:12px;font-weight:700}

/* ---------- 布局 ---------- */
.article-wrap{padding:8px 0 72px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px}
@media (min-width:1200px){.article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px}}
.reading{max-width:760px;margin:0 auto}
.article-body{font-size:17px;line-height:1.9;color:#1B2224}
.article-body>*+*{margin-top:1.2em}
.article-body p{margin:1.2em 0}
.article-body h2{position:relative;font-size:clamp(22px,2.4vw,30px);margin:1.9em 0 .7em;padding-left:16px}
.article-body h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:3px;border-radius:3px;background:var(--c-primary)}
.article-body h3{font-size:20px;color:var(--c-primary);margin:1.6em 0 .5em}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--c-accent-dark)}
.article-body ul,.article-body ol{margin:1.2em 0;padding-left:1.35em}
.article-body ul li{list-style:none;position:relative;padding-left:2px;margin:.5em 0}
.article-body ul li::before{content:"";position:absolute;left:-1.05em;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--c-primary)}
.article-body ol{list-style:decimal}
.article-body ol li{margin:.5em 0}
.article-body blockquote{margin:1.6em 0;padding:18px 22px;background:var(--c-primary-8);border-left:3px solid var(--c-primary);border-radius:0 12px 12px 0;color:var(--t-sub)}
.article-body blockquote p{margin:0}
.article-body img{border-radius:var(--r-img);margin:1.6em 0;height:auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--t-weak);text-align:center}
.article-body code{background:var(--c-bg-alt);border:1px solid var(--c-line);border-radius:6px;padding:2px 6px;font-size:15px}
.article-body pre{background:var(--c-dark);color:var(--t-inv);border-radius:12px;padding:18px 20px;overflow:auto;font-size:14px;line-height:1.7}
.article-body pre code{background:none;border:0;color:inherit;padding:0}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;border:1px solid var(--c-line);border-radius:12px;overflow:hidden}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--c-line);text-align:left}
.article-body th{background:var(--c-bg-alt);font-weight:700}
.article-body tbody tr:nth-child(even){background:#FBFAF7}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2.2em 0}

/* ---------- 文末 ---------- */
.article-foot{margin-top:48px;padding-top:28px;border-top:1px solid var(--c-line);max-width:760px;margin-left:auto;margin-right:auto}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tag-list .label{font-size:13px;color:var(--t-weak);margin-right:4px}
.tag-list a{display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:8px;background:#fff;border:1px solid var(--c-border);font-size:13px;color:var(--t-sub)}
.tag-list a:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-8)}
.pager{display:grid;grid-template-columns:1fr;gap:16px;margin-top:28px}
@media (min-width:768px){.pager{grid-template-columns:1fr 1fr}}
.pager-card{display:block;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-sm);transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease)}
.pager-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:#D9D2C4}
.pager-card .k{font-size:12px;color:var(--t-weak);letter-spacing:.1em;text-transform:uppercase;font-weight:700}
.pager-card .t{margin-top:8px;font-size:16px;font-weight:700;color:var(--t-main);line-height:1.5}
.back-row{margin-top:24px}

/* ---------- 相关推荐 ---------- */
.related{padding:8px 0 72px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.sec-head h2{font-size:clamp(22px,2.6vw,32px)}
.sec-head p{margin-top:8px;color:var(--t-sub);font-size:15px}
.card-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1200px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.post-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--c-bg-alt)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.post-body h3{font-size:19px;line-height:1.45}
.post-body h3 a{color:var(--t-main)}
.post-body h3 a:hover{color:var(--c-primary)}
.post-body p{font-size:14px;color:var(--t-sub);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;gap:10px;margin-top:auto;font-size:13px;color:var(--t-weak)}

/* ---------- 侧栏 ---------- */
.sidebar{display:none}
@media (min-width:1200px){.sidebar{display:block}}
.sidebar-inner{position:sticky;top:92px;display:flex;flex-direction:column;gap:24px}
.widget{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-sm)}
.widget h3{font-size:16px;margin-bottom:14px}
.hot-list li+li{border-top:1px solid var(--c-line)}
.hot-list a{display:block;padding:12px 0;font-size:14px;color:var(--t-sub);line-height:1.6}
.hot-list a:hover{color:var(--c-primary)}
.hot-list .idx{display:inline-block;width:22px;color:var(--c-accent-dark);font-weight:700;font-variant-numeric:tabular-nums}
.dl-widget{background:var(--c-primary);border-color:var(--c-primary-dark);color:var(--t-inv)}
.dl-widget h3{color:#fff}
.dl-widget p{font-size:14px;color:#C9D2CE;margin-bottom:16px}
.dl-widget .btn-main{width:100%}
.dl-widget .fine{margin-top:12px;font-size:12px;color:#9FB0AA}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--c-dark);color:var(--t-inv);padding:72px 0;margin-top:8px}
.cta-inner{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media (min-width:992px){.cta-inner{grid-template-columns:1.35fr .65fr}}
.cta-band h2{font-size:clamp(24px,3vw,36px);color:#fff;max-width:640px}
.cta-band p{margin-top:14px;color:#B9C4C0;font-size:15px;max-width:620px}
.cta-group{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
@media (max-width:575.98px){.cta-group .btn-main,.cta-group .btn-line{width:100%}}
.cta-line{height:48px;padding:0 24px;display:inline-flex;align-items:center;gap:8px;border-radius:var(--r-btn);border:1.5px solid rgba(243,241,234,.4);color:#F3F1EA;font-weight:700}
.cta-line:hover{border-color:var(--c-accent);color:var(--c-accent);transform:translateY(-2px)}
.qr-box{background:rgba(255,255,255,.06);border:1px solid rgba(243,241,234,.16);border-radius:var(--r-block);padding:20px;text-align:center}
.qr-box img{width:132px;height:132px;object-fit:contain;margin:0 auto 12px;border-radius:12px;background:#fff;padding:6px}
.qr-box span{font-size:13px;color:#B9C4C0}

/* ---------- 空态 ---------- */
.empty-state{max-width:620px;margin:0 auto;text-align:center;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-block);padding:56px 28px;box-shadow:var(--sh-sm)}
.empty-state svg{width:48px;height:48px;color:var(--c-primary);margin-bottom:16px}
.empty-state h2{font-size:24px;margin-bottom:10px}
.empty-state p{color:var(--t-sub);font-size:15px;margin-bottom:22px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:#C9D2CE;padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}}
.footer-brand .brand{color:#fff}
.footer-brand .brand-text .bn{color:#fff}
.footer-brand .brand-text .bs{color:#8FA09A}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:#A9B5B0;max-width:34ch}
.footer-col h4{font-size:14px;color:#F3F1EA;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:#C9D2CE}
.footer-col a:hover{color:var(--c-accent)}
.qr-mini{margin-top:16px}
.qr-mini img{width:96px;height:96px;object-fit:contain;background:#fff;border-radius:12px;padding:6px}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;margin-top:44px;padding-top:22px;border-top:1px solid rgba(243,241,234,.12);font-size:13px;color:#8FA09A}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important;transition:none!important}
}
@media (max-width:991.98px){
  .nav-links{display:none}
  .burger{display:flex}
  .btn-platform{display:none}
  .nav-cta{display:none}
  .container{padding:0 20px}
  .article-hero{padding:18px 0 28px}
  .cta-band{padding:48px 0}
  .site-footer{padding:48px 0 24px}
}
@media (max-width:575.98px){
  .brand-text .bs{display:none}
  .brand-sep{display:none}
  .meta-row{font-size:13px;gap:10px}
  .reading{margin:0}
}

/* roulang page: category1 */
:root{
  --c-primary:#0B3B33;
  --c-primary-dark:#06251F;
  --c-primary-light:#145E50;
  --c-primary-soft:#E7EFEC;
  --c-accent:#F0A02A;
  --c-accent-deep:#DE9018;
  --c-bg:#F6F4EF;
  --c-bg-alt:#EFEBE3;
  --c-dark:#0E1513;
  --c-card:#FFFFFF;
  --c-border:#E3DED4;
  --c-divider:#EAE5DC;
  --c-text:#12181A;
  --c-text-2:#5A6260;
  --c-text-3:#8A918F;
  --c-invert:#F3F1EA;
  --c-success:#1F7A55;
  --c-warn:#C9552B;
  --r-btn:12px;
  --r-pill:24px;
  --r-card:16px;
  --r-img:12px;
  --r-block:24px;
  --sh-sm:0 1px 2px rgba(18,24,26,.06);
  --sh-md:0 8px 24px rgba(11,59,51,.08);
  --sh-lg:0 18px 48px rgba(11,59,51,.12);
  --t:180ms cubic-bezier(.2,.7,.3,1);

  --bs-body-bg:var(--c-bg);
  --bs-body-color:var(--c-text);
  --bs-primary:var(--c-primary);
  --bs-primary-rgb:11,59,51;
  --bs-link-color:var(--c-primary-light);
  --bs-link-hover-color:var(--c-primary);
  --bs-border-color:var(--c-border);
  --bs-border-radius:12px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Source Han Sans SC",-apple-system,"Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary-light);text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t)}
a:hover{color:var(--c-primary)}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25;color:var(--c-text)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;font-family:Inter,"Manrope","PingFang SC",Arial,sans-serif}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:767px){.container{padding-left:20px;padding-right:20px}}

/* ===== 站点导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:var(--sh-md)}
.nav-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--c-text);flex-shrink:0}
.brand:hover{color:var(--c-text)}
.brand-mark{width:40px;height:40px;border-radius:12px;background:var(--c-primary);color:#fff;display:grid;place-items:center;font-weight:800;font-size:17px;letter-spacing:.01em}
.brand-sep{width:1px;height:26px;background:var(--c-border)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text .bn{font-weight:800;font-size:17px;letter-spacing:-.01em;color:var(--c-text)}
.brand-text .bs{font-size:12px;color:var(--c-text-3);letter-spacing:.06em}

.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links a{position:relative;padding:10px 12px;font-size:15px;color:var(--c-text-2);border-radius:8px}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-links a:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-primary);font-weight:700}
.nav-links a.active::after{transform:scaleX(1)}

.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.btn-platform{
  height:40px;padding:0 16px;border-radius:var(--r-pill);
  border:1.5px solid var(--c-border);background:#fff;color:var(--c-text);
  font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:10px;
  transition:border-color var(--t),color var(--t),background-color var(--t);
}
.btn-platform::after{
  content:"";width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:rotate(45deg) translateY(-2px);margin-left:2px;
}
.btn-platform:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}
.dropdown-menu{
  border:1px solid var(--c-border);border-radius:14px;box-shadow:var(--sh-md);
  padding:8px;min-width:236px;background:#fff;margin-top:8px;
}
.dropdown-item{border-radius:10px;font-size:14px;padding:10px 12px;color:var(--c-text-2);display:flex;align-items:center;justify-content:space-between;gap:12px}
.dropdown-item:hover,.dropdown-item:focus{background:var(--c-primary-soft);color:var(--c-primary)}
.dropdown-item .meta{font-size:12px;color:var(--c-text-3)}
.dropdown-divider{border-color:var(--c-divider);margin:6px 4px}

.nav-cta{
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--c-accent);color:#1A1204;font-weight:700;font-size:15px;
  display:inline-flex;align-items:center;gap:9px;
  border:1px solid transparent;transition:background-color var(--t),transform var(--t),box-shadow var(--t);
}
.nav-cta:hover{background:var(--c-accent-deep);color:#1A1204;transform:translateY(-2px);box-shadow:var(--sh-lg)}
.nav-cta:active{transform:translateY(1px)}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1.5px solid var(--c-border);
  background:#fff;color:var(--c-text);align-items:center;justify-content:center;
}
.burger:hover{border-color:var(--c-primary);color:var(--c-primary)}

.offcanvas.mobile-nav{background:var(--c-bg);width:320px;border-right:1px solid var(--c-border)}
.mobile-nav .offcanvas-header{padding:20px 22px;border-bottom:1px solid var(--c-divider)}
.mobile-nav .offcanvas-body{padding:12px 14px 20px;display:flex;flex-direction:column}
.mobile-nav a.m-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 14px;border-radius:12px;font-size:16px;color:var(--c-text-2);font-weight:600;
}
.mobile-nav a.m-link:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.mobile-nav a.m-link.active{background:var(--c-primary-soft);color:var(--c-primary)}
.mobile-nav .m-cta{
  margin-top:16px;min-height:52px;border-radius:var(--r-btn);background:var(--c-accent);color:#1A1204;
  font-weight:700;display:flex;align-items:center;justify-content:center;gap:10px;
}
.mobile-nav .m-cta:hover{background:var(--c-accent-deep);color:#1A1204}

/* ===== 面包屑 ===== */
.crumb{font-size:13px;color:var(--c-text-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding-top:22px}
.crumb a{color:var(--c-text-2)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:var(--c-divider)}
.crumb .cur{color:var(--c-text-3)}

/* ===== 区块与标题 ===== */
.section{padding:88px 0}
.section-alt{background:var(--c-bg-alt)}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.14em;font-weight:700;
  color:var(--c-primary);text-transform:uppercase;margin-bottom:14px;
}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,3.2vw,36px)}
.section-head p{margin-top:14px;color:var(--c-text-2);font-size:16px}
.h2-left-bar{position:relative;padding-left:16px}
.h2-left-bar::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;background:var(--c-primary)}

/* ===== 按钮 ===== */
.btn-accent,.btn-outline-custom,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  border-radius:var(--r-btn);font-weight:700;font-size:16px;
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-accent{height:52px;padding:0 30px;background:var(--c-accent);color:#1A1204;border:1px solid transparent}
.btn-accent:hover{background:var(--c-accent-deep);color:#1A1204;transform:translateY(-2px);box-shadow:var(--sh-lg)}
.btn-accent:active{transform:translateY(1px)}
.btn-outline-custom{height:52px;padding:0 26px;border:1.5px solid var(--c-primary);color:var(--c-primary);background:transparent}
.btn-outline-custom:hover{background:var(--c-primary-soft);color:var(--c-primary);transform:translateY(-2px)}
.btn-outline-custom:active{transform:translateY(1px)}
.btn-ghost{height:44px;padding:0 4px;color:var(--c-primary);background:none;border:0;font-size:15px}
.btn-ghost svg{transition:transform var(--t)}
.btn-ghost:hover{color:var(--c-primary-dark)}
.btn-ghost:hover svg{transform:translateX(3px)}
.btn-sm-md{height:44px;padding:0 22px;font-size:15px}

/* ===== Hero ===== */
.hero{padding-bottom:72px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.02fr);gap:56px;align-items:center;margin-top:34px}
.hero h1{font-size:clamp(30px,5vw,52px);line-height:1.18}
.hero-sub{margin-top:20px;font-size:17px;color:var(--c-text-2);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust-row{display:flex;flex-wrap:wrap;gap:14px 34px;margin-top:36px;padding-top:24px;border-top:1px solid var(--c-divider)}
.trust-row li{display:flex;flex-direction:column;gap:2px}
.trust-row .t-label{font-size:12px;letter-spacing:.08em;color:var(--c-text-3)}
.trust-row .t-val{font-size:16px;font-weight:700;color:var(--c-primary)}
.hero-media{
  position:relative;border-radius:var(--r-block);overflow:hidden;border:1px solid var(--c-border);
  box-shadow:var(--sh-md);background:var(--c-bg-alt);
}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 420ms cubic-bezier(.2,.7,.3,1)}
.hero-media:hover img{transform:scale(1.03)}
.hero-media .hero-tag{
  position:absolute;left:18px;bottom:18px;background:rgba(255,255,255,.94);
  border:1px solid var(--c-border);border-radius:12px;padding:10px 16px;font-size:13px;font-weight:700;color:var(--c-primary);
}

/* ===== 功能清单 ===== */
.feature-grid{display:grid;grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);gap:56px;align-items:start}
.feature-intro h2{font-size:clamp(24px,3.2vw,36px)}
.feature-intro p{margin-top:16px;color:var(--c-text-2)}
.feature-intro .mini-note{
  margin-top:26px;background:var(--c-primary-soft);border-radius:var(--r-card);
  padding:18px 20px;font-size:14px;color:var(--c-primary-dark);border-left:3px solid var(--c-primary);
}
.feature-list{display:grid;gap:14px}
.feature-list li{
  display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.feature-list li:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:#D6D0C4}
.f-ico{
  flex:0 0 42px;width:42px;height:42px;border-radius:12px;background:var(--c-primary-soft);color:var(--c-primary);
  display:grid;place-items:center;
}
.feature-list h3{font-size:19px}
.feature-list p{margin:8px 0 0;font-size:14px;color:var(--c-text-2);line-height:1.7}

/* ===== 场景卡 ===== */
.scene-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:24px}
.scene-main{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-sm);display:flex;flex-direction:column;transition:transform var(--t),box-shadow var(--t);
}
.scene-main:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.scene-main .thumb{overflow:hidden}
.scene-main img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 420ms cubic-bezier(.2,.7,.3,1)}
.scene-main:hover img{transform:scale(1.03)}
.scene-main .body{padding:26px}
.scene-main h3{font-size:22px}
.scene-main p{margin-top:12px;color:var(--c-text-2);font-size:15px}
.scene-side{display:grid;gap:24px}
.scene-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:24px;
  box-shadow:var(--sh-sm);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:#D6D0C4}
.scene-card .badge-cat{margin-bottom:14px}
.scene-card h3{font-size:19px}
.scene-card p{margin-top:10px;font-size:14px;color:var(--c-text-2);line-height:1.7}
.badge-cat{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.02em;
  background:rgba(11,59,51,.10);color:var(--c-primary);border-radius:6px;padding:4px 10px;
}
.badge-accent{
  display:inline-block;font-size:12px;font-weight:700;
  background:rgba(240,160,42,.16);color:#8A5A08;border-radius:6px;padding:4px 10px;
}

/* ===== 参数对比表 ===== */
.spec-wrap{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm)}
.spec-table{width:100%;border-collapse:collapse}
.spec-table thead th{
  background:var(--c-primary-soft);color:var(--c-primary-dark);font-size:14px;font-weight:800;
  text-align:left;padding:18px 24px;border-bottom:1px solid var(--c-border);white-space:nowrap;
}
.spec-table tbody td{padding:18px 24px;border-bottom:1px solid var(--c-divider);font-size:15px;color:var(--c-text-2);vertical-align:top}
.spec-table tbody tr:nth-child(even) td{background:#FCFBF8}
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table td.row-key{color:var(--c-text);font-weight:700;width:24%}
.spec-note{margin-top:18px;font-size:14px;color:var(--c-text-3)}

/* ===== FAQ ===== */
.faq-list{max-width:900px;margin:0 auto}
.faq-list .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-divider)}
.faq-list .accordion-item:first-child{border-top:1px solid var(--c-divider)}
.faq-list .accordion-button{
  background:transparent;box-shadow:none;color:var(--c-text);font-size:17px;font-weight:600;
  padding:24px 52px 24px 0;line-height:1.5;
}
.faq-list .accordion-button:not(.collapsed){color:var(--c-primary);background:transparent;box-shadow:none}
.faq-list .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-list .accordion-button::after{
  content:"";background:none;width:14px;height:14px;
  border-right:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
  transform:rotate(45deg);transition:transform var(--t);position:absolute;right:14px;top:50%;margin-top:-10px;
}
.faq-list .accordion-button:not(.collapsed)::after{transform:rotate(225deg);margin-top:-4px}
.faq-list .accordion-body{padding:0 48px 26px 0;font-size:15px;line-height:1.85;color:var(--c-text-2)}

/* ===== CTA 带 ===== */
.cta-band{background:var(--c-dark);color:var(--c-invert);padding:80px 0}
.cta-band h2{color:#fff;font-size:clamp(24px,3.2vw,36px);max-width:760px}
.cta-band p{margin-top:16px;color:#C9D2CE;max-width:640px;font-size:16px}
.cta-inner{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:48px;align-items:center}
.cta-buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.cta-buttons a{
  display:inline-flex;align-items:center;gap:9px;height:46px;padding:0 20px;border-radius:var(--r-btn);
  border:1.5px solid rgba(243,241,234,.34);color:var(--c-invert);font-size:15px;font-weight:600;
  transition:border-color var(--t),color var(--t),background-color var(--t),transform var(--t);
}
.cta-buttons a:hover{border-color:var(--c-accent);color:var(--c-accent);transform:translateY(-2px)}
.cta-buttons a.solid{background:var(--c-accent);border-color:var(--c-accent);color:#1A1204;font-weight:700}
.cta-buttons a.solid:hover{background:var(--c-accent-deep);color:#1A1204}
.cta-qr{
  background:rgba(243,241,234,.06);border:1px solid rgba(243,241,234,.18);border-radius:var(--r-card);
  padding:22px;text-align:center;
}
.cta-qr img{width:120px;height:120px;object-fit:cover;border-radius:12px;margin:0 auto;background:#fff}
.cta-qr span{display:block;margin-top:14px;font-size:13px;color:#C9D2CE}

/* ===== 页脚 ===== */
.site-footer{background:var(--c-dark);color:#C9D2CE;padding:72px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:44px}
.footer-brand .brand{display:inline-flex;align-items:center;gap:12px}
.footer-brand .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--c-primary-light);color:#fff;display:grid;place-items:center;font-weight:800;font-size:16px}
.footer-brand .brand-text .bn{color:#fff;font-weight:800;font-size:16px;display:block}
.footer-brand .brand-text .bs{color:#8FA09A;font-size:12px;letter-spacing:.06em}
.footer-desc{margin-top:18px;color:#9FAEA8;line-height:1.8;max-width:340px}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;letter-spacing:.04em;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:#C9D2CE;font-size:14px}
.footer-col a:hover{color:var(--c-accent)}
.qr-mini{margin-top:18px}
.qr-mini img{width:96px;height:96px;border-radius:10px;object-fit:cover;background:#fff;padding:4px}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(243,241,234,.14);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;color:#8A9A94;font-size:13px;
}

/* ===== 动效 ===== */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms cubic-bezier(.2,.7,.3,1),transform 520ms cubic-bezier(.2,.7,.3,1)}
.reveal.visible{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .nav-links a{padding:10px 9px;font-size:14px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .btn-platform{display:none}
  .nav-cta{display:none}
  .burger{display:inline-flex}
  .nav-inner{height:62px;justify-content:space-between}
  .section{padding:64px 0}
  .hero{padding-bottom:52px}
  .hero-grid{grid-template-columns:1fr;gap:34px;margin-top:26px}
  .hero-sub{max-width:none}
  .feature-grid{grid-template-columns:1fr;gap:34px}
  .scene-grid{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr;gap:34px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .section-head{margin-bottom:30px}
  .hero-cta{gap:12px}
  .hero-cta .btn-accent,.hero-cta .btn-outline-custom{width:100%}
  .trust-row{gap:12px 24px}
  .cta-band{padding:56px 0}
  .cta-buttons a{width:100%;justify-content:center}
  .spec-wrap{border:0;background:transparent;box-shadow:none}
  .spec-table thead{display:none}
  .spec-table,.spec-table tbody,.spec-table tr,.spec-table td{display:block;width:100%}
  .spec-table tbody tr{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);margin-bottom:14px;padding:6px 4px;box-shadow:var(--sh-sm)}
  .spec-table tbody tr:nth-child(even) td{background:transparent}
  .spec-table td{border-bottom:1px dashed var(--c-divider);display:flex;justify-content:space-between;gap:18px;padding:12px 16px;font-size:14px}
  .spec-table td:last-child{border-bottom:0}
  .spec-table td::before{content:attr(data-label);color:var(--c-text-3);font-size:13px;font-weight:700;flex-shrink:0}
  .spec-table td.row-key{width:100%;font-size:16px;color:var(--c-primary)}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{margin-top:36px}
}
@media (max-width:575px){
  .brand-text .bs{display:none}
  .feature-list li{padding:18px}
  .feature-list h3{font-size:17px}
  .scene-main .body{padding:20px}
}

/* roulang page: category2 */
:root{
  --c-primary:#0B3B33;
  --c-primary-dark:#06251F;
  --c-primary-light:#145E50;
  --c-primary-soft:#E7EFEC;
  --c-accent:#F0A02A;
  --c-accent-dark:#D98A16;
  --c-bg:#F6F4EF;
  --c-bg-alt:#EFEBE3;
  --c-dark:#0E1513;
  --c-card:#FFFFFF;
  --c-border:#E3DED4;
  --c-line:#EAE5DC;
  --t-1:#12181A;
  --t-2:#5A6260;
  --t-3:#8A918F;
  --t-inv:#F3F1EA;
  --ok:#1F7A55;
  --warn:#C9552B;
  --r-btn:12px;
  --r-pill:24px;
  --r-card:16px;
  --r-img:12px;
  --sh-sm:0 1px 2px rgba(18,24,26,.06);
  --sh-md:0 8px 24px rgba(11,59,51,.08);
  --sh-lg:0 18px 48px rgba(11,59,51,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --tr:180ms cubic-bezier(.2,.7,.3,1);
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  --bs-body-color:#12181A;
  --bs-link-color:#0B3B33;
  --bs-link-hover-color:#F0A02A;
  --bs-border-color:#E3DED4;
  --bs-primary:#0B3B33;
  --bs-primary-rgb:11,59,51;
  --bs-border-radius:12px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--t-1);
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--c-accent-dark)}
h1,h2,h3,h4{margin:0;color:var(--t-1);font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:767px){.container{padding-left:20px;padding-right:20px}}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow var(--tr),background var(--tr);
}
.site-header.is-scrolled{box-shadow:var(--sh-md);background:rgba(246,244,239,.98)}
.nav-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--t-1)}
.brand:hover{color:var(--t-1)}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  background:linear-gradient(140deg,var(--c-primary-light),var(--c-primary));
  color:var(--t-inv);font-weight:800;font-size:19px;letter-spacing:-.03em;
  display:flex;align-items:center;justify-content:center;text-transform:lowercase;
}
.brand-sep{width:1px;height:26px;background:var(--c-border)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text .bn{font-size:16px;font-weight:800;letter-spacing:-.02em}
.brand-text .bs{font-size:11px;color:var(--t-3);letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{
  position:relative;font-size:15px;color:var(--t-2);padding:6px 0;font-weight:500;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-primary);
  transform:scaleX(0);transform-origin:left;transition:transform var(--tr);
}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-primary);font-weight:700}
.nav-links a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px}
.btn-platform{
  height:44px;padding:0 18px;border-radius:var(--r-pill);
  border:1.5px solid var(--c-border);background:#fff;color:var(--c-primary);
  font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:8px;
  transition:border-color var(--tr),background var(--tr),transform var(--tr);
}
.btn-platform::after{
  content:"";width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:rotate(45deg) translateY(-1px);
}
.btn-platform:hover{border-color:var(--c-primary);background:var(--c-primary-soft);transform:translateY(-2px)}
.nav-cta{
  height:44px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--c-accent);color:#20160A;font-weight:700;font-size:15px;
  display:inline-flex;align-items:center;gap:8px;box-shadow:var(--sh-sm);
  transition:background var(--tr),transform var(--tr),box-shadow var(--tr);
}
.nav-cta:hover{background:var(--c-accent-dark);color:#1A1206;transform:translateY(-2px);box-shadow:var(--sh-lg)}
.nav-cta:active{transform:translateY(0)}
.dropdown-menu{
  border:1px solid var(--c-border);border-radius:14px;box-shadow:var(--sh-md);
  padding:8px;min-width:250px;background:#fff;
}
.dropdown-item{
  border-radius:10px;font-size:14.5px;color:var(--t-2);padding:10px 12px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.dropdown-item:hover,.dropdown-item:focus{background:var(--c-primary-soft);color:var(--c-primary)}
.dropdown-item .meta{font-size:12px;color:var(--t-3)}
.dropdown-divider{border-color:var(--c-line);margin:8px 4px}
.burger{
  display:none;width:44px;height:44px;border:1.5px solid var(--c-border);border-radius:12px;
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;
  transition:border-color var(--tr),background var(--tr);
}
.burger:hover{border-color:var(--c-primary);background:var(--c-primary-soft)}
.burger span{display:block;width:18px;height:2px;background:var(--c-primary);border-radius:2px}

/* 移动抽屉 */
.offcanvas{background:var(--c-bg);max-width:320px}
.offcanvas-header{border-bottom:1px solid var(--c-border);padding:18px 20px}
.offcanvas-title{font-size:16px;font-weight:800;color:var(--t-1)}
.offcanvas-body{padding:16px 20px 24px;display:flex;flex-direction:column}
.btn-close{filter:none;opacity:.6}
.m-nav{display:flex;flex-direction:column;gap:2px}
.m-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:10px 12px;border-radius:12px;font-size:15.5px;color:var(--t-2);font-weight:500;
}
.m-nav a:hover{background:#fff;color:var(--c-primary)}
.m-nav a.active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:700}
.m-nav a::after{content:"›";color:var(--t-3);font-size:18px;line-height:1}
.m-cta{margin-top:auto;padding-top:20px}

/* ---------- 按钮 ---------- */
.btn-primary-ng,.btn-outline-ng,.btn-ghost-ng{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-weight:700;font-size:15.5px;border-radius:var(--r-btn);
  padding:0 24px;height:48px;cursor:pointer;border:1.5px solid transparent;
  transition:background var(--tr),color var(--tr),transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.btn-primary-ng{background:var(--c-accent);color:#20160A;box-shadow:var(--sh-sm)}
.btn-primary-ng:hover{background:var(--c-accent-dark);color:#1A1206;transform:translateY(-2px);box-shadow:var(--sh-lg)}
.btn-primary-ng:active{transform:translateY(1px);box-shadow:var(--sh-sm)}
.btn-outline-ng{border-color:var(--c-primary);color:var(--c-primary);background:transparent}
.btn-outline-ng:hover{background:var(--c-primary-soft);color:var(--c-primary);transform:translateY(-2px)}
.btn-outline-ng:active{transform:translateY(1px)}
.btn-ghost-ng{background:transparent;color:var(--c-primary);padding:0 4px;height:auto}
.btn-ghost-ng svg{transition:transform var(--tr)}
.btn-ghost-ng:hover{color:var(--c-accent-dark)}
.btn-ghost-ng:hover svg{transform:translateX(3px)}
.btn-lg-ng{height:52px;padding:0 30px;font-size:16.5px}
.btn-block{width:100%}
.btn-primary-ng[disabled],.btn-outline-ng[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 徽章 / 标签 ---------- */
.badge-cat{
  display:inline-flex;align-items:center;height:24px;padding:0 9px;border-radius:6px;
  background:rgba(11,59,51,.1);color:var(--c-primary);font-size:12px;font-weight:600;
}
.badge-accent{
  display:inline-flex;align-items:center;height:24px;padding:0 9px;border-radius:6px;
  background:rgba(240,160,42,.16);color:#8A5A08;font-size:12px;font-weight:700;
}
.badge-soft{
  display:inline-flex;align-items:center;height:24px;padding:0 9px;border-radius:6px;
  background:var(--c-bg-alt);color:var(--t-2);font-size:12px;font-weight:600;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- 面包屑 ---------- */
.crumb{font-size:13px;color:var(--t-3);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.crumb a{color:var(--t-2)}
.crumb a:hover{color:var(--c-accent-dark)}
.crumb .sep{color:var(--c-border)}
.crumb .cur{color:var(--t-3)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--c-bg-alt)}
.section-tight{padding:64px 0}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--c-primary);margin-bottom:12px;
}
.sec-head h2{font-size:clamp(24px,3.2vw,36px)}
.sec-head p{margin-top:14px;color:var(--t-2);font-size:16px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-head-row .sec-head{margin-bottom:0}
.divider{height:1px;background:var(--c-line);border:0;margin:0}

/* ---------- Hero ---------- */
.hero-cat{
  position:relative;padding:56px 0 72px;
  background:
    linear-gradient(180deg,rgba(246,244,239,.95) 0%,rgba(246,244,239,.9) 42%,rgba(239,235,227,.96) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--c-border);
}
.hero-cat::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(11,59,51,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(11,59,51,.035) 1px,transparent 1px);
  background-size:44px 44px;
}
.hero-cat .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;margin-top:28px}
.hero-cat h1{font-size:clamp(30px,5vw,52px);line-height:1.18;margin-bottom:18px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--t-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;
  margin-top:36px;padding-top:26px;border-top:1px solid var(--c-line);max-width:620px;
}
.hero-stats .k{font-size:12.5px;color:var(--t-3);letter-spacing:.04em}
.hero-stats .v{font-size:18px;font-weight:800;color:var(--c-primary);margin-top:4px}
.hero-visual{position:relative}
.hero-shot{
  border-radius:var(--r-card);overflow:hidden;background:#fff;
  border:1px solid var(--c-border);box-shadow:var(--sh-md);
}
.hero-shot img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img)}
.hero-shot-cap{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 18px;font-size:13px;color:var(--t-2);
}
.hero-float{
  position:absolute;left:-18px;bottom:-20px;background:#fff;border:1px solid var(--c-border);
  border-radius:14px;box-shadow:var(--sh-lg);padding:14px 18px;min-width:190px;
}
.hero-float .k{font-size:12px;color:var(--t-3)}
.hero-float .v{font-size:20px;font-weight:800;color:var(--c-primary)}

/* ---------- 版本矩阵卡 ---------- */
.ver-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.ver-card{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:24px;display:flex;flex-direction:column;box-shadow:var(--sh-sm);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.ver-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:#D6CFC1}
.ver-card.feature{border-color:var(--c-primary);background:linear-gradient(180deg,rgba(231,239,236,.55),#fff 45%)}
.ver-top{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:16px}
.ver-card h3{font-size:20px;margin-bottom:8px}
.ver-note{font-size:14.5px;color:var(--t-2);margin-bottom:18px}
.ver-facts{display:grid;gap:10px;padding:16px 0;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);margin-bottom:18px}
.ver-facts .row-i{display:flex;align-items:baseline;justify-content:space-between;gap:16px}
.ver-facts .k{font-size:13px;color:var(--t-3);flex:0 0 auto}
.ver-facts .v{font-size:14px;font-weight:600;color:var(--t-1);text-align:right}
.tick-list{display:grid;gap:9px;margin-bottom:22px}
.tick-list li{position:relative;padding-left:24px;font-size:14.5px;color:var(--t-2)}
.tick-list li::before{
  content:"";position:absolute;left:0;top:8px;width:12px;height:7px;
  border-left:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
  transform:rotate(-45deg);
}
.ver-card .btn-primary-ng,.ver-card .btn-outline-ng{margin-top:auto}

/* ---------- 时间线 ---------- */
.timeline{position:relative;max-width:760px;margin:0 auto;padding-left:34px}
.timeline::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;background:var(--c-line)}
.tl-item{position:relative;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-30px;top:6px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--c-primary);
}
.tl-item.is-latest::before{background:var(--c-accent);border-color:var(--c-accent)}
.tl-head{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:8px}
.tl-date{font-size:13.5px;font-weight:700;color:var(--c-primary);letter-spacing:.02em}
.tl-head h3{font-size:18px}
.tl-item p{font-size:14.8px;color:var(--t-2)}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}

/* ---------- 系统要求 ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.spec-card{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-sm);transition:box-shadow var(--tr),transform var(--tr);
}
.spec-card:hover{box-shadow:var(--sh-md);transform:translateY(-4px)}
.spec-card .os{
  display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--t-1);
  padding-bottom:14px;border-bottom:1px solid var(--c-line);margin-bottom:14px;
}
.spec-card .os i{
  width:34px;height:34px;border-radius:10px;background:var(--c-primary-soft);
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-primary);
  font-style:normal;font-size:13px;font-weight:800;
}
.spec-list{display:grid;gap:10px}
.spec-list li{position:relative;padding-left:14px;font-size:14.2px;color:var(--t-2);line-height:1.6}
.spec-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:1.5px;background:var(--c-primary)}
.spec-list .k{color:var(--t-3);margin-right:6px}

/* ---------- 双列说明卡 ---------- */
.note-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.note-card{
  background:var(--c-card);border:1px solid var(--c-border);border-left:3px solid var(--c-primary);
  border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-sm);
}
.note-card h3{font-size:19px;margin-bottom:10px}
.note-card p{font-size:15px;color:var(--t-2)}
.note-card ul{margin-top:14px;display:grid;gap:8px}
.note-card ul li{position:relative;padding-left:16px;font-size:14.2px;color:var(--t-2)}
.note-card ul li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
.check-panel{
  background:var(--c-primary-soft);border-radius:var(--r-card);padding:26px;margin-top:24px;
  border:1px solid rgba(11,59,51,.08);
}
.check-panel h3{font-size:17px;margin-bottom:12px;color:var(--c-primary)}
.check-panel .checks{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.check-panel .checks div{font-size:14.2px;color:#2C3B37;background:#fff;border:1px solid rgba(11,59,51,.1);border-radius:12px;padding:12px 14px}

/* ---------- FAQ ---------- */
.accordion-ng{max-width:880px;margin:0 auto;border-top:1px solid var(--c-line)}
.accordion-ng .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-line)}
.accordion-ng .accordion-button{
  background:transparent;box-shadow:none;color:var(--t-1);font-size:17px;font-weight:600;
  padding:22px 44px 22px 0;line-height:1.5;
}
.accordion-ng .accordion-button:not(.collapsed){color:var(--c-primary);background:transparent;box-shadow:none}
.accordion-ng .accordion-button:focus{box-shadow:none;border-color:transparent;outline:2px solid rgba(11,59,51,.35);outline-offset:-4px}
.accordion-ng .accordion-button::after{
  content:"";background-image:none;position:absolute;right:6px;top:50%;
  width:16px;height:16px;margin:0;transform:translateY(-50%);
  border-left:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
  background:none;
}
.accordion-ng .accordion-button::before{
  content:"";position:absolute;right:6px;top:50%;width:16px;height:2px;
  background:var(--c-primary);transform:translateY(-50%);
}
.accordion-ng .accordion-button[aria-expanded="true"]::after{
  background-color:var(--c-bg);transform:translateY(-50%) rotate(0deg);
}
.accordion-ng .accordion-button[aria-expanded="true"]::before{
  background-color:var(--c-bg);
}
.accordion-ng .accordion-body{padding:0 56px 24px 0;font-size:15px;color:var(--t-2);line-height:1.8}
.faq-hint{font-size:14px;color:var(--t-3);margin-top:26px;text-align:center}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--c-dark);color:var(--t-inv);padding:72px 0}
.cta-inner{display:grid;grid-template-columns:1.4fr .6fr;gap:40px;align-items:center}
.cta-band h2{color:var(--t-inv);font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.cta-band p{color:#C9D2CE;font-size:15.5px;max-width:640px}
.cta-buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.cta-band .btn-outline-ng{border-color:rgba(243,241,234,.5);color:var(--t-inv)}
.cta-band .btn-outline-ng:hover{background:rgba(243,241,234,.12);color:#fff}
.cta-qr{justify-self:end;text-align:center}
.cta-qr img{
  width:132px;height:132px;object-fit:cover;border-radius:12px;background:#fff;padding:6px;
  border:1px solid rgba(243,241,234,.18);
}
.cta-qr span{display:block;font-size:12.5px;color:#A9B4B0;margin-top:10px}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E1513;color:#C9D2CE;padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px}
.site-footer .brand{color:var(--t-inv);gap:10px}
.site-footer .brand-text .bn{color:var(--t-inv)}
.site-footer .brand-text .bs{color:#8E9A96}
.footer-desc{font-size:14px;color:#A9B4B0;margin-top:16px;max-width:330px;line-height:1.8}
.footer-col h4{font-size:14px;color:var(--t-inv);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:#C9D2CE}
.footer-col ul a:hover{color:var(--c-accent)}
.qr-mini{margin-top:16px;width:96px}
.qr-mini img{width:96px;height:96px;object-fit:cover;border-radius:10px;background:#fff;padding:5px}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(243,241,234,.13);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8E9A96;
}

/* ---------- 动效 ---------- */
.fade-up{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.fade-up.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .fade-up{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{transition:none!important}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-links{gap:18px}
  .nav-links a{font-size:14px}
  .spec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-grid .footer-col:last-child{grid-column:span 3}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .nav-links{display:none}
  .btn-platform{display:none}
  .burger{display:inline-flex}
  .nav-inner{gap:16px}
  .nav-actions{margin-left:auto}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:-1}
  .hero-float{left:auto;right:12px;bottom:-16px}
  .ver-grid{grid-template-columns:1fr 1fr}
  .note-grid{grid-template-columns:1fr}
  .check-panel .checks{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .cta-qr{justify-self:start}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-grid .footer-col:last-child{grid-column:span 2}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .nav-inner{height:60px}
  .brand-sep{display:none}
  .brand-mark{width:38px;height:38px;flex:0 0 38px;font-size:17px}
  .brand-text .bs{display:none}
  .hero-cat{padding:32px 0 56px}
  .hero-stats{grid-template-columns:1fr;gap:14px;padding-top:20px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn-primary-ng,.hero-actions .btn-outline-ng{width:100%}
  .ver-grid{grid-template-columns:1fr}
  .spec-grid{grid-template-columns:1fr}
  .sec-head-row{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-buttons{flex-direction:column}
  .cta-buttons .btn-primary-ng,.cta-buttons .btn-outline-ng{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid .footer-col:last-child{grid-column:span 1}
  .accordion-ng .accordion-button{font-size:16px;padding:18px 40px 18px 0}
  .timeline{padding-left:26px}
  .tl-item::before{left:-24px;width:12px;height:12px}
}
@media (max-width:575px){
  .hero-float{position:static;margin-top:16px;box-shadow:var(--sh-sm)}
  .ver-card{padding:20px}
}

/* roulang page: category3 */
:root{
  --c-primary:#0B3B33;
  --c-primary-d:#06251F;
  --c-primary-l:#145E50;
  --c-primary-soft:#E7EFEC;
  --c-accent:#F0A02A;
  --c-accent-d:#d98a17;
  --c-bg:#F6F4EF;
  --c-bg-alt:#EFEBE3;
  --c-dark:#0E1513;
  --c-card:#FFFFFF;
  --c-border:#E3DED4;
  --c-divide:#EAE5DC;
  --c-text:#12181A;
  --c-text-2:#5A6260;
  --c-text-3:#8A918F;
  --c-invert:#F3F1EA;
  --c-success:#1F7A55;
  --c-warn:#C9552B;
  --r-btn:12px;
  --r-card:16px;
  --r-img:12px;
  --r-block:24px;
  --r-pill:24px;
  --sh-sm:0 1px 2px rgba(18,24,26,.06);
  --sh-md:0 8px 24px rgba(11,59,51,.08);
  --sh-lg:0 18px 48px rgba(11,59,51,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --tr:180ms var(--ease);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;line-height:1.75;color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr),background var(--tr),border-color var(--tr);}
a:hover{color:var(--c-accent-d);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25;color:var(--c-text);}
h1{font-size:clamp(30px,5vw,52px);line-height:1.18;}
h2{font-size:clamp(24px,3.2vw,36px);}
h3{font-size:20px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";font-family:"Inter","Manrope","PingFang SC",sans-serif;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px;}
@media (min-width:1400px){:root{--maxw:1280px;}}
@media (max-width:640px){.container{padding:0 20px;}}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow var(--tr),background var(--tr);
}
.site-header.is-scrolled{box-shadow:var(--sh-md);}
.nav-inner{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-text);flex-shrink:0;}
.brand:hover{color:var(--c-text);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:11px;
  background:var(--c-primary);color:#fff;
  font-weight:800;font-size:17px;letter-spacing:-.03em;
}
.brand-sep{width:1px;height:24px;background:var(--c-border);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text .bn{font-size:16px;font-weight:800;letter-spacing:-.01em;}
.brand-text .bs{font-size:11px;color:var(--c-text-3);letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:auto;}
.nav-links a{
  position:relative;font-size:15px;color:var(--c-text-2);padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-primary);
  transform:scaleX(0);transform-origin:left;transition:transform var(--tr);
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--c-primary);font-weight:700;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.btn-platform{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 18px;border-radius:var(--r-pill);
  background:#fff;border:1.5px solid var(--c-border);color:var(--c-text);
  font-size:14px;font-weight:600;transition:all var(--tr);cursor:pointer;
}
.btn-platform::after{
  content:"";width:7px;height:7px;border-right:1.6px solid var(--c-primary);border-bottom:1.6px solid var(--c-primary);
  transform:rotate(45deg) translateY(-2px);
}
.btn-platform:hover{border-color:var(--c-primary);background:var(--c-primary-soft);}
.dropdown-menu{
  border:1px solid var(--c-border);border-radius:14px;box-shadow:var(--sh-md);
  padding:8px;min-width:236px;background:#fff;margin-top:8px;
}
.dropdown-item{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-radius:10px;padding:10px 12px;font-size:14px;color:var(--c-text);white-space:normal;
}
.dropdown-item:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.dropdown-item .meta{font-size:12px;color:var(--c-text-3);}
.dropdown-divider{border-color:var(--c-divide);margin:6px 4px;}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--c-accent);color:#20180a;font-weight:700;font-size:15px;
  box-shadow:var(--sh-sm);transition:all var(--tr);
}
.nav-cta:hover{background:var(--c-accent-d);color:#20180a;transform:translateY(-2px);box-shadow:var(--sh-lg);}
.nav-cta:active{transform:translateY(-1px);}
.burger{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;background:#fff;
  border:1.5px solid var(--c-border);cursor:pointer;color:var(--c-primary);
}
.burger:hover{border-color:var(--c-primary);background:var(--c-primary-soft);}
@media (max-width:1199px){
  .nav-links{display:none;}
  .burger{display:inline-flex;}
  .nav-actions{margin-left:auto;}
}
@media (max-width:767px){
  .nav-inner{height:60px;gap:12px;}
  .brand-sep,.brand-text .bs{display:none;}
  .btn-platform{display:none;}
  .nav-cta{height:40px;padding:0 16px;font-size:14px;}
  .nav-cta .cta-label{display:none;}
  .nav-cta{padding:0 14px;}
}
.offcanvas{background:var(--c-bg);width:320px;}
.offcanvas-header{border-bottom:1px solid var(--c-border);padding:18px 22px;}
.offcanvas-title{font-size:17px;font-weight:800;}
.offcanvas-body{padding:18px 22px 110px;}
.m-nav-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 4px;border-bottom:1px solid var(--c-divide);
  font-size:16px;color:var(--c-text);min-height:44px;
}
.m-nav-list a.active{color:var(--c-primary);font-weight:700;}
.m-nav-list a span{font-size:12px;color:var(--c-text-3);}
.m-cta-fixed{
  position:absolute;left:0;right:0;bottom:0;padding:16px 22px calc(16px + env(safe-area-inset-bottom));
  background:linear-gradient(to top,var(--c-bg) 70%,rgba(246,244,239,0));
}
.m-cta-fixed .btn-amber{width:100%;justify-content:center;height:52px;font-size:16px;}

/* ============ 按钮 ============ */
.btn-amber,.btn-outline-p,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:var(--r-btn);font-weight:700;font-size:15px;
  height:44px;padding:0 24px;border:1.5px solid transparent;
  cursor:pointer;transition:all var(--tr);
}
.btn-amber{background:var(--c-accent);color:#20180a;box-shadow:var(--sh-sm);}
.btn-amber:hover{background:var(--c-accent-d);color:#20180a;transform:translateY(-2px);box-shadow:var(--sh-lg);}
.btn-amber:active{transform:translateY(0);box-shadow:var(--sh-sm);}
.btn-outline-p{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline-p:hover{background:var(--c-primary-soft);color:var(--c-primary);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--c-primary);padding:0 6px;font-weight:700;}
.btn-ghost svg{transition:transform var(--tr);}
.btn-ghost:hover{color:var(--c-accent-d);}
.btn-ghost:hover svg{transform:translateX(3px);}
.btn-lg{height:52px;font-size:16px;padding:0 30px;}
.btn-block{width:100%;}

/* ============ 通用区块 ============ */
.section{padding:88px 0;}
.section-alt{background:var(--c-bg-alt);}
.sec-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--c-primary);margin-bottom:14px;
}
.sec-head p{margin-top:14px;color:var(--c-text-2);font-size:16px;line-height:1.8;}
.divider{height:1px;background:var(--c-divide);border:0;margin:0;}
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}
@media (max-width:991px){.section{padding:64px 0;}}
@media (max-width:640px){.section{padding:48px 0;}}

/* 面包屑 */
.crumbs{padding:18px 0 0;font-size:13px;color:var(--c-text-3);}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumbs a{color:var(--c-text-2);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs .sep{color:var(--c-border);}
.crumbs .cur{color:var(--c-text-3);}

/* ============ Hero ============ */
.guide-hero{
  position:relative;padding:56px 0 72px;
  background:
    linear-gradient(90deg,rgba(246,244,239,.97) 0%,rgba(246,244,239,.86) 48%,rgba(246,244,239,.55) 100%),
    url("/assets/images/backpic/back-2.png") center right/cover no-repeat;
  border-bottom:1px solid var(--c-border);
}
.guide-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(11,59,51,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(11,59,51,.045) 1px,transparent 1px);
  background-size:56px 56px;opacity:.7;
}
.guide-hero .container{position:relative;z-index:2;}
.guide-hero-inner{max-width:720px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px;}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;padding:6px 12px;border-radius:6px;
  background:var(--c-primary-soft);color:var(--c-primary);letter-spacing:.02em;
}
.badge-amber{background:rgba(240,160,42,.14);color:#8a5b06;}
.guide-hero h1{margin-bottom:18px;}
.guide-hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-sub{font-size:17px;line-height:1.85;color:var(--c-text-2);max-width:640px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-facts{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;
  margin-top:40px;background:var(--c-border);border:1px solid var(--c-border);
  border-radius:var(--r-block);overflow:hidden;max-width:660px;
}
.hero-facts div{background:#fff;padding:18px 20px;}
.hero-facts .k{font-size:12px;letter-spacing:.1em;color:var(--c-text-3);text-transform:uppercase;}
.hero-facts .v{font-size:18px;font-weight:800;color:var(--c-primary);margin-top:4px;}
@media (max-width:768px){
  .hero-facts{grid-template-columns:1fr;border-radius:var(--r-card);}
  .hero-cta .btn-amber,.hero-cta .btn-outline-p{width:100%;}
}

/* ============ 教程布局：粘性目录 + 步骤 ============ */
.tutorial-wrap{display:grid;grid-template-columns:264px minmax(0,1fr);gap:48px;align-items:start;}
.toc{
  position:sticky;top:92px;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-sm);
}
.toc h2{font-size:14px;letter-spacing:.12em;text-transform:uppercase;color:var(--c-text-3);font-weight:700;margin-bottom:14px;}
.toc ol{counter-reset:toc;display:flex;flex-direction:column;gap:2px;}
.toc a{
  display:flex;gap:10px;align-items:flex-start;
  padding:9px 10px;border-radius:10px;font-size:14px;color:var(--c-text-2);line-height:1.5;
}
.toc a::before{
  counter-increment:toc;content:counter(toc,decimal-leading-zero);
  font-size:12px;font-weight:800;color:var(--c-primary);opacity:.6;
  font-variant-numeric:tabular-nums;padding-top:1px;
}
.toc a:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.toc a.active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:700;}
.toc a.active::before{opacity:1;}
.toc-foot{margin-top:18px;padding-top:18px;border-top:1px solid var(--c-divide);}
.toc-foot p{font-size:13px;color:var(--c-text-3);line-height:1.7;margin-bottom:12px;}

.steps{display:flex;flex-direction:column;gap:24px;}
.step-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:28px;display:grid;grid-template-columns:84px minmax(0,1fr);gap:24px;
  box-shadow:var(--sh-sm);transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
  scroll-margin-top:100px;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:#d8d2c6;}
.step-no{
  font-size:52px;font-weight:800;line-height:1;color:var(--c-accent);
  font-variant-numeric:tabular-nums;letter-spacing:-.04em;
}
.step-body h3{margin-bottom:10px;font-size:20px;}
.step-body > p{color:var(--c-text-2);font-size:15.5px;line-height:1.85;}
.step-list{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.step-list li{position:relative;padding-left:20px;font-size:15px;color:var(--c-text-2);line-height:1.75;}
.step-list li::before{
  content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--c-primary);
}
.step-list li strong{color:var(--c-text);font-weight:700;}
.tip{
  margin-top:18px;background:var(--c-primary-soft);border-radius:12px;
  padding:16px 18px;display:flex;gap:12px;align-items:flex-start;
}
.tip-icon{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;
  background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;margin-top:1px;
}
.tip p{font-size:14px;line-height:1.8;color:var(--c-primary-d);}
.tip p strong{font-weight:800;}
.step-media{margin-top:20px;border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;background:var(--c-bg-alt);}
.step-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.step-card:hover .step-media img{transform:scale(1.03);}
@media (max-width:991px){
  .tutorial-wrap{grid-template-columns:1fr;gap:28px;}
  .toc{position:static;padding:18px;}
  .toc ol{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .toc a{background:var(--c-bg-alt);padding:8px 12px;}
  .toc-foot{display:none;}
}
@media (max-width:640px){
  .step-card{grid-template-columns:1fr;gap:12px;padding:22px;}
  .step-no{font-size:42px;}
}

/* ============ 准备清单卡 ============ */
.prep-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.prep-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-sm);transition:transform var(--tr),box-shadow var(--tr);
}
.prep-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);}
.prep-card .pc-ico{
  width:44px;height:44px;border-radius:12px;background:var(--c-primary-soft);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.prep-card h3{font-size:18px;margin-bottom:10px;}
.prep-card p{font-size:14.5px;color:var(--c-text-2);line-height:1.8;}
.prep-card ul{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.prep-card li{font-size:14px;color:var(--c-text-2);padding-left:16px;position:relative;}
.prep-card li::before{content:"—";position:absolute;left:0;color:var(--c-primary);opacity:.6;}
@media (max-width:991px){.prep-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:767px){.prep-grid{grid-template-columns:1fr;}}

/* ============ 平台切换 tab ============ */
.platform-tabs{border-bottom:1px solid var(--c-divide);gap:8px;margin-bottom:26px;flex-wrap:wrap;}
.platform-tabs .nav-link{
  border:0;border-radius:10px 10px 0 0;background:transparent;
  color:var(--c-text-2);font-weight:700;font-size:15px;padding:12px 18px;
  border-bottom:2px solid transparent;
}
.platform-tabs .nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.platform-tabs .nav-link.active{
  color:var(--c-primary);background:transparent;border-bottom-color:var(--c-accent);
}
.tab-panel{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-sm);
}
.tab-panel h3{font-size:19px;margin-bottom:14px;}
.tab-list{display:grid;grid-template-columns:1fr 1fr;gap:10px 28px;}
.tab-list li{position:relative;padding-left:20px;font-size:15px;color:var(--c-text-2);line-height:1.75;}
.tab-list li::before{content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
@media (max-width:767px){.tab-list{grid-template-columns:1fr;}}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-divide);}
.accordion-button{
  background:transparent;box-shadow:none;padding:22px 44px 22px 0;
  font-size:17px;font-weight:600;color:var(--c-text);line-height:1.6;
}
.accordion-button:not(.collapsed){color:var(--c-primary);background:transparent;box-shadow:none;}
.accordion-button:focus{box-shadow:none;border-color:transparent;}
.accordion-button::after{
  background-image:none;width:20px;height:20px;position:absolute;right:6px;
  content:"";border-right:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
  transform:rotate(45deg);transition:transform var(--tr);margin:0;
}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg);}
.accordion-body{padding:0 60px 24px 0;font-size:15px;line-height:1.85;color:var(--c-text-2);}
@media (max-width:640px){
  .accordion-button{font-size:16px;padding:18px 36px 18px 0;}
  .accordion-body{padding-right:0;}
}

/* ============ 相关资讯横滑 ============ */
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.rail{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(288px,1fr);gap:20px;overflow-x:auto;padding-bottom:10px;scroll-snap-type:x mandatory;}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-thumb{background:var(--c-border);border-radius:99px;}
.rail-card{
  scroll-snap-align:start;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);
  transition:transform var(--tr),box-shadow var(--tr);
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);}
.rail-card .rc-media{aspect-ratio:16/10;overflow:hidden;background:var(--c-bg-alt);}
.rail-card .rc-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.rail-card:hover .rc-media img{transform:scale(1.03);}
.rail-card .rc-body{padding:20px;}
.rail-card .rc-body h3{font-size:17px;margin:10px 0 8px;}
.rail-card .rc-body p{font-size:14px;color:var(--c-text-2);line-height:1.75;}
.rail-card .rc-meta{font-size:13px;color:var(--c-text-3);margin-top:14px;}

/* ============ 深色 CTA ============ */
.cta-band{
  background:var(--c-dark);color:var(--c-invert);
  border-radius:var(--r-block);padding:56px;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,160,42,.22),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:40px;align-items:center;}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:#C9D2CE;font-size:16px;line-height:1.8;max-width:560px;}
.cta-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.btn-outline-inv{
  display:inline-flex;align-items:center;gap:9px;height:44px;padding:0 24px;border-radius:var(--r-btn);
  border:1.5px solid rgba(243,241,234,.45);color:var(--c-invert);font-weight:700;font-size:15px;background:transparent;
  transition:all var(--tr);
}
.btn-outline-inv:hover{border-color:var(--c-accent);color:var(--c-accent);transform:translateY(-2px);}
.cta-qr{
  background:rgba(255,255,255,.06);border:1px solid rgba(243,241,234,.16);
  border-radius:var(--r-card);padding:18px;text-align:center;
}
.cta-qr img{width:100%;max-width:140px;margin:0 auto 10px;border-radius:8px;}
.cta-qr span{font-size:13px;color:#C9D2CE;}
@media (max-width:991px){
  .cta-band{padding:40px 28px;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .cta-btns .btn-amber,.cta-btns .btn-outline-inv{width:100%;}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-dark);color:#C9D2CE;padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-accent);color:#20180a;}
.footer-brand .bn{color:#fff;}
.footer-brand .bs{color:#8A918F;}
.footer-desc{font-size:14px;line-height:1.85;color:#C9D2CE;max-width:340px;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:#C9D2CE;display:inline-block;min-height:22px;}
.footer-col a:hover{color:var(--c-accent);}
.qr-mini{margin-top:18px;}
.qr-mini img{width:96px;height:96px;border-radius:10px;background:#fff;padding:4px;object-fit:cover;}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(243,241,234,.12);
  display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;
  font-size:13px;color:#8A918F;
}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:575px){
  .site-footer{padding:48px 0 24px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category4 */
/* ================= 设计令牌 ================= */
:root{
  --c-primary:#0B3B33;
  --c-primary-dark:#06251F;
  --c-primary-light:#145E50;
  --c-primary-8:#E7EFEC;
  --c-accent:#F0A02A;
  --c-accent-dark:#D98A17;
  --c-bg:#F6F4EF;
  --c-bg-alt:#EFEBE3;
  --c-dark:#0E1513;
  --c-card:#FFFFFF;
  --c-border:#E3DED4;
  --c-line:#EAE5DC;
  --t-main:#12181A;
  --t-sub:#5A6260;
  --t-weak:#8A918F;
  --t-inv:#F3F1EA;
  --c-ok:#1F7A55;
  --c-warn:#C9552B;

  --r-btn:12px;
  --r-card:16px;
  --r-img:12px;
  --r-block:24px;
  --r-pill:24px;

  --sh-sm:0 1px 2px rgba(18,24,26,.06);
  --sh-md:0 8px 24px rgba(11,59,51,.08);
  --sh-lg:0 18px 48px rgba(11,59,51,.12);

  --t:180ms cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC",Inter,Manrope,sans-serif;
}

/* ================= 基础 reset ================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--t-main);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--c-accent-dark);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.num{font-family:Inter,Manrope,"PingFang SC",sans-serif;font-variant-numeric:tabular-nums;}

/* ================= 容器与板块 ================= */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:768px){ .container{padding-left:28px;padding-right:28px;} }
@media (min-width:1400px){ .container{max-width:1280px;} }

.section{padding:48px 0;}
@media (min-width:768px){ .section{padding:64px 0;} }
@media (min-width:992px){ .section{padding:88px 0;} }
.section--alt{background:var(--c-bg-alt);}

.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--c-primary);
  font-weight:700;
  margin-bottom:12px;
}
.sec-head{max-width:760px;margin-bottom:36px;}
.sec-head h2{
  font-size:clamp(24px,3.2vw,36px);
  line-height:1.28;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--t-main);
}
.sec-head p{margin-top:14px;color:var(--t-sub);font-size:16px;}
.sec-head--split{max-width:none;display:flex;flex-wrap:wrap;gap:20px;align-items:flex-end;justify-content:space-between;}
.sec-head--split .sec-head-txt{max-width:680px;}

/* ================= 按钮 ================= */
.btn-ng{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1;
  cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),background-color var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-ng--primary{background:var(--c-accent);color:#241703;box-shadow:var(--sh-sm);}
.btn-ng--primary:hover{background:var(--c-accent-dark);color:#241703;transform:translateY(-2px);box-shadow:var(--sh-lg);}
.btn-ng--primary:active{transform:translateY(0);box-shadow:var(--sh-sm);}
.btn-ng--outline{background:transparent;border:1.5px solid var(--c-primary);color:var(--c-primary);}
.btn-ng--outline:hover{background:var(--c-primary-8);color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-ng--ghost{background:transparent;color:var(--c-primary);padding:0 6px;height:auto;}
.btn-ng--ghost:hover{color:var(--c-accent-dark);}
.btn-ng--ghost .arw{display:inline-block;transition:transform var(--t);}
.btn-ng--ghost:hover .arw{transform:translateX(3px);}
.btn-ng--lg{height:52px;padding:0 28px;font-size:16px;}
.btn-ng--sm{height:36px;padding:0 16px;font-size:14px;}
.btn-ng[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ================= 导航 ================= */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:var(--sh-md);}
.nav-inner{
  display:flex;align-items:center;gap:20px;
  height:60px;
}
@media (min-width:992px){ .nav-inner{height:68px;gap:28px;} }

.brand{display:inline-flex;align-items:center;gap:10px;color:var(--t-main);flex:none;}
.brand:hover{color:var(--t-main);}
.brand-mark{
  width:38px;height:38px;flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;
  border-radius:11px;
  font-weight:800;font-size:15px;letter-spacing:.02em;
}
.brand-sep{width:1px;height:24px;background:var(--c-border);}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text .bn{font-weight:800;font-size:16px;letter-spacing:-.01em;}
.brand-text .bs{font-size:11px;color:var(--t-weak);letter-spacing:.06em;}

.nav-links{display:none;flex:1;align-items:center;gap:4px;justify-content:center;}
.nav-links a{
  position:relative;
  display:inline-flex;align-items:center;height:40px;
  padding:0 12px;
  font-size:15px;color:var(--t-sub);
  border-radius:8px;
  transition:color var(--t);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--c-primary);
  transform:scaleX(0);transform-origin:left center;
  transition:transform var(--t);
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--c-primary);font-weight:700;}
.nav-links a.active::after{transform:scaleX(1);}

.nav-actions{display:none;align-items:center;gap:10px;flex:none;}
.btn-platform{
  height:40px;padding:0 16px;
  background:#fff;border:1px solid var(--c-border);
  border-radius:10px;
  font-size:14px;font-weight:600;color:var(--c-primary);
  display:inline-flex;align-items:center;gap:8px;
  cursor:pointer;transition:border-color var(--t),box-shadow var(--t);
}
.btn-platform::after{
  content:"";width:8px;height:8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:rotate(45deg) translateY(-1px);
}
.btn-platform:hover{border-color:var(--c-primary);box-shadow:var(--sh-sm);}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 20px;
  background:var(--c-accent);color:#241703;
  border-radius:var(--r-pill);
  font-weight:700;font-size:15px;
  box-shadow:var(--sh-sm);
  transition:transform var(--t),box-shadow var(--t),background-color var(--t);
}
.nav-cta:hover{background:var(--c-accent-dark);color:#241703;transform:translateY(-2px);box-shadow:var(--sh-lg);}
.dropdown-menu{
  border:1px solid var(--c-border);
  border-radius:14px;
  box-shadow:var(--sh-md);
  padding:8px;
  min-width:260px;
  background:#fff;
}
.dropdown-item{
  border-radius:9px;padding:10px 12px;font-size:14px;color:var(--t-main);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.dropdown-item:hover{background:var(--c-primary-8);color:var(--c-primary-dark);}
.dropdown-item .meta{font-size:12px;color:var(--t-weak);}
.dropdown-divider{margin:6px 4px;border-color:var(--c-line);}

.burger{
  margin-left:auto;
  width:44px;height:44px;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:#fff;border:1px solid var(--c-border);border-radius:11px;cursor:pointer;
}
.burger span{display:block;width:18px;height:2px;background:var(--c-primary);border-radius:2px;}
@media (min-width:992px){
  .nav-links{display:flex;}
  .nav-actions{display:flex;}
  .burger{display:none;}
}

/* 移动端抽屉 */
.mobile-nav{width:min(340px,88vw);background:var(--c-bg);border-left:1px solid var(--c-line);}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--c-line);padding:16px 20px;}
.mobile-nav .offcanvas-title{font-size:16px;font-weight:800;color:var(--t-main);}
.mobile-nav .offcanvas-body{padding:16px 20px 100px;display:flex;flex-direction:column;}
.m-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;font-size:16px;color:var(--t-main);
  border-bottom:1px solid var(--c-line);
}
.m-link.active{color:var(--c-primary);font-weight:700;}
.m-link .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);opacity:0;}
.m-link.active .dot{opacity:1;}
.m-foot-cta{
  position:fixed;left:0;right:0;bottom:0;
  padding:12px 20px calc(12px + env(safe-area-inset-bottom));
  background:rgba(246,244,239,.96);
  border-top:1px solid var(--c-line);
  backdrop-filter:blur(8px);
}
.m-foot-cta .btn-ng{width:100%;}
@media (min-width:992px){ .mobile-nav{display:none;} }

/* ================= 面包屑 ================= */
.crumb{font-size:13px;color:var(--t-weak);display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.crumb a{color:var(--t-weak);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:var(--c-border);}
.crumb .cur{color:var(--t-weak);}

/* ================= Hero ================= */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:28px 0 48px;
  border-bottom:1px solid var(--c-line);
  background-image:
    linear-gradient(rgba(246,244,239,.95),rgba(246,244,239,.97)),
    url('/assets/images/backpic/back-2.png');
  background-size:cover,cover;
  background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(11,59,51,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(11,59,51,.05) 1px,transparent 1px);
  background-size:56px 56px;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media (min-width:992px){
  .page-hero{padding:44px 0 88px;}
  .hero-grid{grid-template-columns:1.05fr .95fr;gap:56px;}
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 14px;
  background:var(--c-primary-8);color:var(--c-primary);
  border-radius:var(--r-pill);
  font-size:13px;font-weight:700;
}
.hero-tag .pip{width:7px;height:7px;border-radius:50%;background:var(--c-accent);}
.page-hero h1{
  margin-top:18px;
  font-size:clamp(30px,5vw,52px);
  line-height:1.16;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--t-main);
}
.page-hero .hero-sub{
  margin-top:18px;
  max-width:600px;
  font-size:17px;line-height:1.8;color:var(--t-sub);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:32px;
  padding-top:24px;border-top:1px solid var(--c-border);
}
.hero-facts .fact{display:flex;flex-direction:column;gap:2px;}
.hero-facts .fact b{font-size:18px;font-weight:800;color:var(--c-primary);}
.hero-facts .fact span{font-size:13px;color:var(--t-weak);}

.hero-visual{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-block);
  padding:14px;box-shadow:var(--sh-md);
}
.hero-visual .shot{
  position:relative;width:100%;aspect-ratio:16/10;overflow:hidden;border-radius:var(--r-img);
  background:var(--c-bg-alt);
}
.hero-visual .shot img{width:100%;height:100%;object-fit:cover;transition:transform 320ms cubic-bezier(.2,.7,.3,1);}
.hero-visual:hover .shot img{transform:scale(1.03);}
.hero-visual .cap{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 6px 4px;font-size:13px;color:var(--t-weak);
}
.hero-visual .cap b{font-size:14px;color:var(--t-main);font-weight:700;}

/* ================= 通用卡片 ================= */
.card-ng{
  background:var(--c-card);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  padding:24px;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card-ng:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:#D7D0C4;}
.card-ng h3{font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--t-main);line-height:1.4;}
.card-ng .muted{font-size:13px;color:var(--t-weak);}

.badge-ng{
  display:inline-flex;align-items:center;height:24px;padding:0 9px;
  border-radius:6px;font-size:12px;font-weight:700;
  background:rgba(11,59,51,.1);color:var(--c-primary);
}
.badge-ng--accent{background:rgba(240,160,42,.14);color:#8A5A06;}

/* ================= 双列说明卡 ================= */
.duo-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){ .duo-grid{grid-template-columns:1fr 1fr;gap:24px;} }
.duo-card{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-block);
  padding:28px;box-shadow:var(--sh-sm);
  transition:transform var(--t),box-shadow var(--t);
  display:flex;flex-direction:column;
}
.duo-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);}
.duo-head{display:flex;align-items:flex-start;gap:14px;}
.duo-icon{
  width:46px;height:46px;flex:none;border-radius:13px;
  background:var(--c-primary-8);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
}
.duo-card h3{font-size:21px;font-weight:800;letter-spacing:-.01em;}
.duo-card .duo-p{margin-top:8px;font-size:14px;color:var(--t-weak);}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--t-sub);line-height:1.7;}
.check-list li .tick{
  flex:none;margin-top:7px;width:14px;height:14px;border-radius:4px;
  background:var(--c-primary-8);
  position:relative;
}
.check-list li .tick::after{
  content:"";position:absolute;left:4px;top:1px;
  width:5px;height:9px;border-right:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
  transform:rotate(42deg);
}
.duo-note{
  margin-top:22px;padding:14px 16px;border-radius:12px;
  background:var(--c-primary-8);color:var(--c-primary-dark);
  font-size:13.5px;line-height:1.7;
}

/* ================= FAQ ================= */
.faq-wrap{max-width:960px;}
.faq-acc{background:transparent;border:0;border-top:1px solid var(--c-line);border-radius:0;}
.faq-acc .accordion-item{border:0;border-bottom:1px solid var(--c-line);background:transparent;}
.faq-acc .accordion-header{margin:0;}
.faq-acc .accordion-button{
  background:transparent;
  padding:22px 52px 22px 0;
  font-size:17px;font-weight:600;color:var(--t-main);
  border-radius:0;box-shadow:none;line-height:1.6;
}
.faq-acc .accordion-button:not(.collapsed){
  background:transparent;color:var(--c-primary);box-shadow:none;
}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq-acc .accordion-button:focus-visible{outline:2px solid var(--c-primary);outline-offset:-2px;}
.faq-acc .accordion-button::after{
  content:"";width:16px;height:16px;margin-left:auto;flex:none;
  background-color:transparent;
  background-image:
    linear-gradient(var(--c-primary),var(--c-primary)),
    linear-gradient(var(--c-primary),var(--c-primary));
  background-position:center,center;
  background-size:14px 2px,2px 14px;
  background-repeat:no-repeat;
  transition:transform var(--t);
  transform:none;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.faq-acc .accordion-body{
  padding:0 52px 26px 0;
  font-size:15px;line-height:1.8;color:var(--t-sub);
}
.faq-acc .accordion-body p + p{margin-top:10px;}
.faq-acc .accordion-body strong{color:var(--t-main);}

/* ================= 支持入口 ================= */
.support-panel{
  background:var(--c-card);border:1px solid var(--c-border);
  border-radius:var(--r-block);padding:28px;box-shadow:var(--sh-sm);
}
@media (min-width:992px){ .support-panel{padding:36px;} }
.support-grid{display:grid;grid-template-columns:1fr;gap:28px;}
@media (min-width:992px){ .support-grid{grid-template-columns:1.15fr .85fr;gap:40px;} }
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--t-main);margin-bottom:8px;}
.field .req{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--c-accent);margin-left:6px;vertical-align:middle;}
.field .ctrl{
  width:100%;height:44px;padding:0 14px;
  border:1px solid #DDD8CE;border-radius:10px;background:#fff;
  transition:border-color var(--t),box-shadow var(--t);
}
textarea.ctrl{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;min-height:132px;}
.field .ctrl:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(11,59,51,.14);
}
.field .hint{font-size:13px;color:var(--t-weak);margin-top:6px;}
.field .err{font-size:13px;color:var(--c-warn);margin-top:6px;display:none;}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px;}
.form-foot .note{font-size:13px;color:var(--t-weak);}

.support-side{
  background:var(--c-bg-alt);border:1px solid var(--c-border);
  border-radius:var(--r-card);padding:24px;display:flex;flex-direction:column;gap:18px;
}
.support-side h3{font-size:18px;font-weight:800;}
.info-row{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--t-sub);}
.info-row .ic{
  width:34px;height:34px;flex:none;border-radius:10px;background:#fff;color:var(--c-primary);
  border:1px solid var(--c-border);
  display:inline-flex;align-items:center;justify-content:center;
}
.info-row b{display:block;color:var(--t-main);font-size:14px;}
.tip-strip{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 18px;border-radius:14px;
  background:var(--c-primary-8);color:var(--c-primary-dark);
  font-size:14px;line-height:1.75;
}
.tip-strip .ic{flex:none;color:var(--c-primary);margin-top:2px;}

/* ================= CTA 带 ================= */
.cta-band{background:var(--c-dark);color:var(--t-inv);padding:56px 0;}
@media (min-width:992px){ .cta-band{padding:72px 0;} }
.cta-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media (min-width:992px){ .cta-grid{grid-template-columns:1.25fr .75fr;gap:48px;} }
.cta-band h2{
  font-size:clamp(24px,3.4vw,36px);line-height:1.26;font-weight:800;letter-spacing:-.02em;color:#fff;
}
.cta-band p{margin-top:14px;color:#C9D2CE;font-size:16px;max-width:620px;}
.cta-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.btn-ng--inv-outline{background:transparent;border:1.5px solid rgba(243,241,234,.4);color:var(--t-inv);}
.btn-ng--inv-outline:hover{background:rgba(243,241,234,.1);color:#fff;transform:translateY(-2px);}
.cta-qr{
  background:rgba(255,255,255,.06);border:1px solid rgba(243,241,234,.16);
  border-radius:var(--r-block);padding:22px;text-align:center;
}
.cta-qr img{width:132px;height:132px;object-fit:cover;border-radius:12px;margin:0 auto 12px;background:#fff;}
.cta-qr .t{font-size:14px;color:#fff;font-weight:700;}
.cta-qr .s{font-size:12.5px;color:#9EA9A5;margin-top:4px;}
.cta-stats{display:flex;flex-wrap:wrap;gap:24px;margin-top:28px;padding-top:24px;border-top:1px solid rgba(243,241,234,.14);}
.cta-stats .st b{display:block;font-size:20px;font-weight:800;color:var(--c-accent);}
.cta-stats .st span{font-size:13px;color:#9EA9A5;}

/* ================= 页脚 ================= */
.site-footer{background:var(--c-dark);color:var(--t-inv);padding:56px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:768px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr;} }
@media (min-width:992px){ .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;} }
.footer-brand .brand{color:#fff;}
.footer-brand .brand-mark{background:var(--c-accent);color:#241703;}
.footer-brand .brand-text .bn{color:#fff;}
.footer-brand .brand-text .bs{color:#9EA9A5;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:#C9D2CE;max-width:340px;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:#C9D2CE;}
.footer-col a:hover{color:var(--c-accent);}
.qr-mini{margin-top:16px;}
.qr-mini img{width:96px;height:96px;object-fit:cover;border-radius:10px;background:#fff;padding:4px;}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(243,241,234,.14);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:#8E9995;
}

/* ================= 动效 ================= */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms cubic-bezier(.2,.7,.3,1),transform 520ms cubic-bezier(.2,.7,.3,1);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ================= 小屏细节 ================= */
@media (max-width:575px){
  .hero-actions .btn-ng{width:100%;}
  .cta-btns .btn-ng{width:100%;}
  .form-foot .btn-ng{width:100%;}
  .brand-sep{display:none;}
  .brand-text .bs{display:none;}
  .card-ng{padding:20px;}
  .duo-card{padding:22px;}
  .support-panel{padding:20px;}
  .faq-acc .accordion-button{padding-right:44px;font-size:16px;}
  .faq-acc .accordion-body{padding-right:8px;}
}

/* roulang page: category5 */
:root{
  --c-primary:#0B3B33;
  --c-primary-dark:#06251F;
  --c-primary-light:#145E50;
  --c-primary-8:#E7EFEC;
  --c-accent:#F0A02A;
  --c-accent-deep:#E2941F;
  --c-accent-ink:#8A5A0B;
  --c-bg:#F6F4EF;
  --c-bg-alt:#EFEBE3;
  --c-dark:#0E1513;
  --c-card:#FFFFFF;
  --c-border:#E3DED4;
  --c-divider:#EAE5DC;
  --t-main:#12181A;
  --t-sub:#5A6260;
  --t-weak:#8A918F;
  --t-inv:#F3F1EA;
  --ok:#1F7A55;
  --warn:#C9552B;
  --r-btn:12px;
  --r-pill:24px;
  --r-card:16px;
  --r-img:12px;
  --r-block:24px;
  --sh-sm:0 1px 2px rgba(18,24,26,.06);
  --sh-md:0 8px 24px rgba(11,59,51,.08);
  --sh-lg:0 18px 48px rgba(11,59,51,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --tr:180ms cubic-bezier(.2,.7,.3,1);

  --bs-body-bg:var(--c-bg);
  --bs-body-color:var(--t-main);
  --bs-primary:var(--c-primary);
  --bs-link-color:var(--c-primary);
  --bs-link-hover-color:var(--c-accent-deep);
  --bs-border-radius:12px;
  --bs-border-color:var(--c-border);
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--t-main);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--c-accent-deep)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.band-alt{background:var(--c-bg-alt)}
.band-white{background:#fff}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.sec-head h2{font-size:clamp(24px,3.2vw,36px)}
.sec-sub{font-size:15px;color:var(--t-sub);margin-top:12px;max-width:62ch}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--c-primary);margin-bottom:12px}
.divider{height:1px;background:var(--c-divider);border:0;margin:0}

/* ---------- 按钮 ---------- */
.btn-amber{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border:0;border-radius:var(--r-btn);
  background:var(--c-accent);color:#20170A;font-size:15px;font-weight:700;
  box-shadow:var(--sh-sm);transition:all var(--tr);white-space:nowrap;
}
.btn-amber:hover{background:var(--c-accent-deep);color:#20170A;transform:translateY(-2px);box-shadow:var(--sh-lg)}
.btn-amber:active{transform:translateY(0);box-shadow:var(--sh-sm)}
.btn-amber:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-amber.lg{height:52px;padding:0 28px;font-size:16px}
.btn-amber.sm{height:36px;padding:0 16px;font-size:14px}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  border:1.5px solid var(--c-primary);background:transparent;
  color:var(--c-primary);font-size:15px;font-weight:600;transition:all var(--tr);white-space:nowrap;
}
.btn-line:hover{background:var(--c-primary-8);color:var(--c-primary);transform:translateY(-2px)}
.btn-line:active{transform:translateY(0)}
.btn-line.on-dark{border-color:rgba(243,241,234,.5);color:var(--t-inv)}
.btn-line.on-dark:hover{background:rgba(243,241,234,.12);color:#fff}
.ghost-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-size:15px;font-weight:600}
.ghost-link svg{transition:transform var(--tr)}
.ghost-link:hover svg{transform:translateX(2px)}

/* ---------- 徽章 ---------- */
.badge-soft{display:inline-flex;align-items:center;height:24px;padding:0 8px;border-radius:6px;background:var(--c-primary-8);color:var(--c-primary);font-size:12px;font-weight:600}
.badge-amber{display:inline-flex;align-items:center;height:24px;padding:0 8px;border-radius:6px;background:rgba(240,160,42,.18);color:var(--c-accent-ink);font-size:12px;font-weight:600}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,244,239,.94);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow var(--tr);
}
.site-header.scrolled{box-shadow:var(--sh-md)}
.nav-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--t-main);flex:0 0 auto}
.brand:hover{color:var(--t-main)}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;flex:0 0 40px;
  background:var(--c-primary);color:#fff;font-size:17px;font-weight:800;letter-spacing:-.03em;
  font-family:"Inter","Manrope","Helvetica Neue",Arial,sans-serif;
}
.brand-sep{width:1px;height:26px;background:var(--c-border)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text .bn{font-size:16px;font-weight:800;letter-spacing:-.01em}
.brand-text .bs{font-size:11px;color:var(--t-weak);letter-spacing:.06em;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 12px;
  font-size:15px;font-weight:500;color:var(--t-sub);border-radius:10px;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform var(--tr);
}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-primary);font-weight:700}
.nav-links a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.btn-platform{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 16px;
  border-radius:var(--r-pill);border:1.5px solid var(--c-primary);
  background:transparent;color:var(--c-primary);
  font-size:14px;font-weight:600;transition:all var(--tr);white-space:nowrap;
}
.btn-platform::after{
  content:"";width:7px;height:7px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;
  transform:rotate(45deg) translate(-2px,-2px);
}
.btn-platform:hover{background:var(--c-primary-8)}
.btn-platform[aria-expanded="true"]{background:var(--c-primary-8)}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;
  border-radius:var(--r-pill);background:var(--c-accent);color:#20170A;
  font-size:15px;font-weight:700;box-shadow:var(--sh-sm);transition:all var(--tr);white-space:nowrap;
}
.nav-cta:hover{background:var(--c-accent-deep);color:#20170A;transform:translateY(-2px);box-shadow:var(--sh-lg)}
.nav-cta:active{transform:translateY(0)}
.burger{
  display:none;width:44px;height:44px;padding:0;border-radius:12px;
  border:1px solid var(--c-border);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;flex:0 0 44px;
  transition:all var(--tr);
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-primary)}
.burger:hover{background:var(--c-primary-8);border-color:var(--c-primary)}
.dropdown-menu{
  border:1px solid var(--c-border);border-radius:14px;box-shadow:var(--sh-md);
  padding:8px;min-width:264px;background:#fff;margin-top:8px;
}
.dropdown-item{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:10px 12px;border-radius:10px;font-size:14px;color:var(--t-main);
  transition:background var(--tr),color var(--tr);
}
.dropdown-item:hover,.dropdown-item:focus{background:var(--c-primary-8);color:var(--c-primary)}
.dropdown-item .meta{font-size:12px;color:var(--t-weak)}
.dropdown-divider{border-color:var(--c-divider);margin:6px 4px}

/* ---------- 抽屉导航 ---------- */
.offcanvas{background:var(--c-bg);width:320px;max-width:88vw}
.offcanvas-header{padding:20px;border-bottom:1px solid var(--c-border);align-items:center}
.offcanvas-body{padding:16px 20px 28px;display:flex;flex-direction:column;gap:18px}
.mobile-nav{display:flex;flex-direction:column}
.mobile-nav a{
  display:flex;align-items:center;min-height:48px;padding:12px 4px;
  font-size:16px;color:var(--t-main);border-bottom:1px solid var(--c-divider);
}
.mobile-nav a.active{color:var(--c-primary);font-weight:700}
.mobile-nav a:hover{color:var(--c-primary)}
.btn-close{--bs-btn-close-focus-shadow:0 0 0 3px var(--c-primary-8);opacity:.55}
.btn-close:hover{opacity:1}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t-weak);padding:22px 0 0}
.crumb a{color:var(--t-sub)}
.crumb a:hover{color:var(--c-accent-deep)}
.crumb .sep{color:var(--c-border)}
.crumb .cur{color:var(--t-weak)}

/* ---------- 首屏 ---------- */
.page-hero{position:relative;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(11,59,51,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(11,59,51,.05) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.75),transparent 76%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.75),transparent 76%);
}
.page-hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:36px 0 76px}
.hero-title{font-size:clamp(30px,4.6vw,50px);margin-bottom:18px}
.hero-title em{font-style:normal;color:var(--c-primary);box-shadow:inset 0 -.32em 0 rgba(240,160,42,.28)}
.hero-sub{font-size:17px;color:var(--t-sub);max-width:56ch;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px}
.trust-chip{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 12px;
  border-radius:10px;background:#fff;border:1px solid var(--c-border);
  font-size:13px;color:var(--t-sub);
}
.trust-chip b{color:var(--t-main);font-weight:700}
.hero-media{
  position:relative;border-radius:var(--r-block);overflow:hidden;
  border:1px solid var(--c-border);background:var(--c-bg-alt);
  box-shadow:var(--sh-md);aspect-ratio:16/10;
}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.hero-media:hover img{transform:scale(1.03)}
.hero-media .cap{
  position:absolute;left:16px;bottom:16px;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 12px;border-radius:10px;
  background:rgba(14,21,19,.82);color:var(--t-inv);font-size:13px;
}

/* ---------- 指标条 ---------- */
.metrics{background:#fff;border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:34px 26px;border-right:1px solid var(--c-divider)}
.metric:last-child{border-right:0}
.metric .num{display:block;font-size:clamp(28px,3.4vw,40px);font-weight:800;color:var(--c-primary);letter-spacing:-.03em;line-height:1}
.metric .lb{display:block;font-size:14px;font-weight:700;margin-top:12px}
.metric .ds{display:block;font-size:13px;color:var(--t-sub);margin-top:4px;line-height:1.7}

/* ---------- 评价墙 ---------- */
.wall{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;align-items:start}
.wall-col{display:flex;flex-direction:column;gap:24px}
@media(min-width:992px){.wall-col-2{margin-top:24px}}
.t-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-sm);
  transition:transform var(--tr),box-shadow var(--tr);
}
.t-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.t-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{
  width:44px;height:44px;flex:0 0 44px;border-radius:50%;object-fit:cover;
  border:2px solid var(--c-primary-8);background:var(--c-bg-alt);
}
.t-name{font-size:15px;font-weight:700;line-height:1.3}
.t-role{font-size:13px;color:var(--t-weak);line-height:1.4}
.stars{margin-left:auto;color:var(--c-accent);font-size:13px;letter-spacing:2px;line-height:1;white-space:nowrap}
.quote{font-size:15px;color:var(--t-sub);line-height:1.85}
.t-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}

/* ---------- 案例长文 ---------- */
.case-wrap{max-width:760px;margin:0 auto}
.case-lead{font-size:17px;line-height:1.9;color:var(--t-sub)}
.case-block{margin-top:38px}
.case-block h3{font-size:20px;color:var(--c-primary);margin-bottom:12px}
.case-block p{font-size:16.5px;line-height:1.9;color:#2C3433;margin-bottom:14px}
.case-note{
  margin-top:40px;padding:20px 22px;border-radius:var(--r-card);
  background:var(--c-primary-8);border:1px solid #D3E2DC;
  font-size:15px;color:var(--c-primary);line-height:1.8;
}

/* ---------- 相关资讯横滑 ---------- */
.strip{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 18px;-webkit-overflow-scrolling:touch;
}
.strip::-webkit-scrollbar{height:8px}
.strip::-webkit-scrollbar-track{background:var(--c-bg-alt);border-radius:8px}
.strip::-webkit-scrollbar-thumb{background:var(--c-border);border-radius:8px}
.strip::-webkit-scrollbar-thumb:hover{background:#CFC7B8}
.n-card{
  flex:0 0 300px;scroll-snap-align:start;
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);transition:transform var(--tr),box-shadow var(--tr);
}
.n-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.n-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--c-bg-alt)}
.n-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.n-card:hover .n-thumb img{transform:scale(1.03)}
.n-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.n-cat{align-self:flex-start}
.n-title{font-size:17px;font-weight:700;line-height:1.45}
.n-title a{color:var(--t-main)}
.n-title a:hover{color:var(--c-primary)}
.n-desc{
  font-size:14px;color:var(--t-sub);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.n-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--t-weak);margin-top:auto;padding-top:6px}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--c-dark);color:var(--t-inv);
  border-radius:var(--r-block);padding:56px;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,160,42,.22),transparent 68%);pointer-events:none;
}
.cta-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.cta-band h2{color:#fff;font-size:clamp(24px,3.2vw,34px);margin-bottom:14px}
.cta-band p{color:#C9D2CE;font-size:15px;max-width:52ch;line-height:1.85}
.dl-group{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.dl-btn{
  display:inline-flex;align-items:center;gap:10px;height:48px;padding:0 18px;
  border-radius:var(--r-btn);border:1px solid rgba(243,241,234,.26);
  background:rgba(243,241,234,.06);color:var(--t-inv);
  font-size:14px;font-weight:600;transition:all var(--tr);white-space:nowrap;
}
.dl-btn:hover{border-color:var(--c-accent);color:#fff;background:rgba(240,160,42,.16);transform:translateY(-2px)}
.dl-btn.primary{background:var(--c-accent);border-color:var(--c-accent);color:#20170A;font-weight:700}
.dl-btn.primary:hover{background:var(--c-accent-deep);color:#20170A}
.qr-box{
  justify-self:end;text-align:center;padding:22px;
  border-radius:var(--r-card);border:1px solid rgba(243,241,234,.2);
  background:rgba(243,241,234,.06);
}
.qr-box img{
  width:120px;height:120px;object-fit:cover;border-radius:10px;
  background:#fff;padding:6px;margin:0 auto 12px;
}
.qr-box span{display:block;font-size:13px;color:#C9D2CE;line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:var(--t-inv);padding:72px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{color:#fff}
.footer-brand .brand:hover{color:#fff}
.footer-brand .brand-mark{background:var(--c-accent);color:#20170A}
.footer-brand .bn{color:#fff}
.footer-brand .bs{color:#8E9A96}
.footer-desc{font-size:14px;color:#C9D2CE;margin-top:18px;max-width:34ch;line-height:1.85}
.footer-col h4{font-size:14px;color:#fff;font-weight:700;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:#C9D2CE}
.footer-col a:hover{color:var(--c-accent)}
.qr-mini{margin-top:18px}
.qr-mini img{width:96px;height:96px;object-fit:cover;border-radius:10px;background:#fff;padding:5px}
.footer-bottom{
  margin-top:56px;padding:22px 0 28px;border-top:1px solid rgba(243,241,234,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8E9A96;line-height:1.7;
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:1199.98px){
  .nav-links{display:none}
  .burger{display:inline-flex}
}
@media(min-width:1400px){
  .container{max-width:1280px}
}
@media(max-width:991.98px){
  .section{padding:64px 0}
  .nav-actions .btn-platform{display:none}
  .hero-grid{grid-template-columns:1fr;gap:32px;padding:24px 0 56px}
  .hero-sub{font-size:16px}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .metric:nth-child(2){border-right:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--c-divider)}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .qr-box{justify-self:start}
  .cta-band{padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .site-footer{padding:56px 0 0;margin-top:64px}
}
@media(max-width:767.98px){
  .container{padding:0 20px}
  .wall{grid-template-columns:1fr}
  .wall-col-2{margin-top:0}
  .n-card{flex:0 0 78%}
  .sec-head{margin-bottom:28px}
  .footer-bottom{margin-top:40px}
}
@media(max-width:575.98px){
  .section{padding:48px 0}
  .nav-inner{height:60px;gap:14px}
  .brand-sep,.brand-text .bs{display:none}
  .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:15px}
  .nav-cta{padding:0 16px;font-size:14px}
  .metrics-grid{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--c-divider);padding:24px 20px}
  .metric:last-child{border-bottom:0}
  .hero-actions{gap:10px}
  .hero-actions .btn-amber,.hero-actions .btn-line{width:100%}
  .t-card{padding:20px}
  .cta-band{padding:32px 22px;border-radius:16px}
  .dl-group{gap:10px}
  .dl-btn{width:100%;justify-content:center}
  .qr-box{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}