/* roulang page: index */
:root{
  --c-primary:#123A33;
  --c-primary-dark:#0B211D;
  --c-primary-soft:#E7EFEC;
  --c-accent:#FF6A13;
  --c-accent-dark:#E8570A;
  --c-secondary:#2E9E86;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFEBE4;
  --c-text:#1A2422;
  --c-text-2:#5C6B67;
  --c-line:#E1DCD3;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,58,51,.06);
  --sh-2:0 8px 24px -12px rgba(18,58,51,.18);
  --sh-3:0 16px 32px -14px rgba(18,58,51,.26);
  --f-sans:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;

  --bs-primary:#123A33;
  --bs-body-bg:#F7F5F1;
  --bs-body-color:#1A2422;
  --bs-border-color:#E1DCD3;
  --bs-border-radius:16px;
  --bs-link-color:#123A33;
  --bs-link-hover-color:#E8570A;
  --bs-font-sans-serif:var(--f-sans);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  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 .2s ease;}
a:hover{color:var(--c-accent);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;color:var(--c-text);letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
time,.num{font-variant-numeric:tabular-nums;}
a:focus-visible,button:focus-visible,input:focus-visible,.accordion-button:focus-visible{
  outline:2px solid var(--c-accent);
  outline-offset:2px;
  box-shadow:0 0 0 4px rgba(255,106,19,.18);
}
.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.site-container{max-width:1320px;}}
@media (max-width:767px){.site-container{padding:0 16px;}}

/* ---------- 顶部导航 ---------- */
.site-head{
  position:sticky;
  top:0;
  z-index:1035;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-head.is-stuck{
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  box-shadow:0 6px 18px rgba(18,58,51,.10);
}
.head-top{
  display:flex;
  align-items:center;
  gap:20px;
  height:56px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,var(--c-primary),#1D5C50);
  color:#fff;font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-text strong{font-size:19px;font-weight:700;color:var(--c-primary);letter-spacing:.4px;}
.brand-text em{font-style:normal;font-size:10px;letter-spacing:1.4px;color:var(--c-text-2);text-transform:uppercase;}
.nav-search{
  position:relative;flex:1 1 auto;max-width:340px;
}
.nav-search i{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  color:var(--c-text-2);font-size:15px;pointer-events:none;
}
.nav-search input{
  width:100%;height:38px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:#fff;
  padding:0 12px 0 34px;font-size:14px;color:var(--c-text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search input::placeholder{color:#9AA6A2;}
.nav-search input:focus{
  outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(255,106,19,.14);
}
.hot-tags{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;white-space:nowrap;flex:1 1 auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.hot-tags::-webkit-scrollbar{display:none;}
.hot-title{font-size:12px;color:var(--c-text-2);flex:0 0 auto;}
.hot-tags a{
  flex:0 0 auto;font-size:12px;line-height:1.4;
  padding:4px 10px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:#1F7A66;
  transition:background .2s ease,color .2s ease;
}
.hot-tags a:hover{background:var(--c-accent);color:#fff;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-primary);
  font-size:20px;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--c-secondary);color:var(--c-secondary);}
.channel-bar{border-top:1px solid var(--c-line);background:rgba(247,245,241,.6);}
.channel-inner{display:flex;align-items:center;gap:6px;height:48px;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;flex:0 0 auto;
  padding:0 14px;height:48px;display:flex;align-items:center;
  font-size:16px;font-weight:500;color:var(--c-text);
}
.channel-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:8px;height:2px;
  background:var(--c-accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.channel-link:hover{color:var(--c-primary);}
.channel-link:hover::after{transform:scaleX(1);}
.channel-link.is-active{color:var(--c-primary);font-weight:700;}
.channel-link.is-active::after{transform:scaleX(1);}
.site-head.is-stuck .head-top{height:48px;}
.site-head.is-stuck .channel-inner{height:40px;}
.site-head.is-stuck .channel-link{height:40px;font-size:14px;}
.site-head.is-stuck .channel-link::after{bottom:5px;}
.nav-drawer{width:82vw !important;border-top-left-radius:20px;border-bottom-left-radius:20px;background:#fff;}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--c-line);padding:16px 20px;}
.nav-drawer .offcanvas-body{padding:20px;}
.drawer-title{font-size:17px;font-weight:700;color:var(--c-primary);}
.drawer-search{position:relative;margin-bottom:20px;}
.drawer-search i{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--c-text-2);}
.drawer-search input{
  width:100%;height:44px;border-radius:var(--r-btn);border:1px solid var(--c-line);
  padding:0 12px 0 34px;font-size:14px;
}
.drawer-search input:focus{outline:none;border-color:var(--c-accent);}
.drawer-list{display:flex;flex-direction:column;gap:4px;margin-bottom:24px;}
.drawer-list a{
  padding:12px 14px;border-radius:10px;font-size:16px;color:var(--c-text);
  display:flex;align-items:center;justify-content:space-between;
}
.drawer-list a:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.drawer-list a.is-active{background:var(--c-primary);color:#fff;font-weight:600;}
.drawer-label{font-size:12px;color:var(--c-text-2);letter-spacing:1px;margin-bottom:10px;}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.drawer-tags a{font-size:12px;padding:5px 10px;border-radius:var(--r-pill);background:var(--c-primary-soft);color:#1F7A66;}
.offcanvas-backdrop.show{opacity:1;background-color:rgba(11,33,29,.45);}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0;}
.section-alt{background:var(--c-surface-alt);}
@media (max-width:767px){.section{padding:48px 0;}}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:40px;
}
.section-title{
  position:relative;padding-left:14px;
  font-size:clamp(24px,2.4vw,32px);line-height:1.32;font-weight:700;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  background:var(--c-accent);border-radius:2px;
}
.section-sub{margin-top:10px;font-size:15px;color:var(--c-text-2);padding-left:14px;}
.section-more{font-size:14px;color:var(--c-text-2);display:inline-flex;align-items:center;gap:6px;flex:0 0 auto;}
.section-more:hover{color:var(--c-accent);}
@media (max-width:767px){
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
}

/* ---------- 按钮 ---------- */
.btn-accent,.btn-line,.btn-ghost,.btn-white{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;
  padding:12px 26px;cursor:pointer;
  transition:transform .22s ease,background .22s ease,color .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-accent{background:var(--c-accent);border:1px solid var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
.btn-accent:hover{background:var(--c-accent-dark);border-color:var(--c-accent-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);}
.btn-accent:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-line{background:transparent;border:1px solid var(--c-secondary);color:#1F7A66;}
.btn-line:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.65);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.btn-white{background:#fff;border:1px solid #fff;color:var(--c-primary);}
.btn-white:hover{background:#F0EDE7;border-color:#F0EDE7;color:var(--c-primary-dark);transform:translateY(-2px);box-shadow:var(--sh-3);}
.btn-block{width:100%;}
@media (max-width:767px){
  .btn-accent,.btn-line,.btn-ghost,.btn-white{min-height:48px;width:100%;}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  min-height:540px;display:flex;align-items:center;
  background-image:linear-gradient(90deg,rgba(18,58,51,.86) 0%,rgba(18,58,51,.42) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:48px 48px;
}
.hero-inner{position:relative;z-index:2;padding:76px 0;}
.hero-col{max-width:640px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.6px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  color:#EAF3F0;margin-bottom:20px;
}
.hero h1{
  color:#fff;font-size:clamp(30px,3.4vw,46px);line-height:1.28;font-weight:700;
  margin-bottom:16px;
}
.hero h1 .hl{color:#FFB37A;}
.hero-sub{
  font-size:17px;line-height:1.8;color:rgba(255,255,255,.88);
  max-width:560px;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:22px;}
.hero-trust li{
  display:flex;align-items:center;gap:8px;
  font-size:14px;color:rgba(255,255,255,.86);
}
.hero-trust i{color:#7FD9C3;font-size:16px;}
@media (max-width:767px){
  .hero{min-height:auto;background-image:linear-gradient(180deg,rgba(18,58,51,.88) 0%,rgba(18,58,51,.55) 100%),url('/assets/images/backpic/back-1.png');}
  .hero-inner{padding:48px 0;}
  .hero-sub{font-size:15px;line-height:1.8;}
  .hero-actions{gap:12px;}
  .hero-trust{gap:14px;}
  .hero-trust li{font-size:13px;}
}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;gap:24px;grid-template-columns:repeat(4,1fr);}
@media (max-width:1199px){.card-grid{grid-template-columns:repeat(3,1fr);}}
@media (max-width:991px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:767px){.card-grid{grid-template-columns:1fr;}}
.p-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.p-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:#D8D1C5;}
.p-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--c-surface-alt);}
.p-media img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease;}
.p-card:hover .p-media img{transform:scale(1.03);}
.p-badge{
  position:absolute;left:12px;top:12px;
  font-size:12px;line-height:1.4;padding:4px 10px;border-radius:var(--r-pill);
  background:var(--c-accent);color:#fff;font-weight:600;
}
.p-badge.is-brand{background:var(--c-secondary);}
.p-body{padding:18px 18px 0;}
.p-title{
  font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.p-title a{color:var(--c-text);}
.p-title a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px;}
.p-desc{
  font-size:15px;line-height:1.75;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.p-foot{
  margin-top:16px;padding:16px 18px 18px;
  border-top:1px dashed var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;line-height:1.4;padding:4px 10px;border-radius:var(--r-pill);
}
.tag-brand{background:#E6F4F0;color:#1F7A66;}
.tag-soft{background:var(--c-primary-soft);color:var(--c-primary);}
.tag-hot{background:var(--c-accent);color:#fff;font-weight:600;}
.link-more{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.link-more:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px;}
@media (max-width:767px){.p-foot .link-more{min-height:auto;}}

/* ---------- 排行 ---------- */
.rank-panel{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);
}
.rank-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:16px;border-bottom:1px solid var(--c-line);margin-bottom:8px;
}
.rank-head span{font-size:13px;color:var(--c-text-2);}
.rank-row{
  display:grid;grid-template-columns:52px 1fr 200px 64px;
  align-items:center;gap:16px;padding:16px 0;
  border-bottom:1px dashed var(--c-line);
}
.rank-row:last-child{border-bottom:none;}
.rank-no{
  font-size:18px;font-weight:700;color:var(--c-secondary);
  font-variant-numeric:tabular-nums;
}
.rank-row:nth-child(2) .rank-no{color:var(--c-accent);}
.rank-name{font-size:16px;font-weight:600;color:var(--c-text);}
.rank-name small{display:block;font-size:13px;font-weight:400;color:var(--c-text-2);margin-top:2px;}
.rank-bar{height:8px;border-radius:var(--r-pill);background:var(--c-primary-soft);overflow:hidden;}
.rank-bar i{display:block;height:100%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--c-secondary),#7FD9C3);}
.rank-score{font-size:16px;font-weight:700;color:var(--c-primary);text-align:right;font-variant-numeric:tabular-nums;}
@media (max-width:767px){
  .rank-panel{padding:20px;}
  .rank-row{grid-template-columns:40px 1fr 56px;gap:12px;}
  .rank-bar{display:none;}
}

/* ---------- 评价轮播 ---------- */
.review-wrap{position:relative;padding:0 12px;}
.review-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media (max-width:991px){.review-row{grid-template-columns:repeat(2,1fr);}}
@media (max-width:767px){.review-row{grid-template-columns:1fr;}}
.review-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);height:100%;
  transition:transform .22s ease,box-shadow .22s ease;
}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.review-avatar{
  width:44px;height:44px;border-radius:var(--r-pill);flex:0 0 auto;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
}
.review-name{font-size:15px;font-weight:600;line-height:1.4;}
.review-role{display:inline-block;margin-top:4px;}
.review-text{font-size:15px;line-height:1.8;color:var(--c-text-2);min-height:84px;}
.review-stars{color:#F2A03D;font-size:14px;letter-spacing:2px;margin-top:14px;}
.review-carousel .carousel-control-prev,
.review-carousel .carousel-control-next{
  width:44px;height:44px;top:50%;transform:translateY(-50%);
  background:rgba(18,58,51,.12);border-radius:10px;opacity:1;
  color:var(--c-primary);border:none;display:flex;align-items:center;justify-content:center;
  transition:background .2s ease,color .2s ease;
}
.review-carousel .carousel-control-prev{left:-8px;}
.review-carousel .carousel-control-next{right:-8px;}
.review-carousel .carousel-control-prev:hover,
.review-carousel .carousel-control-next:hover{background:var(--c-primary);color:#fff;}
.review-carousel .carousel-indicators{display:none;}
.review-carousel .carousel-item{padding:4px;}

/* ---------- 保障条 ---------- */
.guard-band{background:var(--c-surface-alt);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.guard-item{
  padding:34px 24px;display:flex;flex-direction:column;gap:10px;
  border-left:1px solid var(--c-line);
}
.guard-item:first-child{border-left:none;}
.guard-item i{font-size:26px;color:var(--c-secondary);}
.guard-item h3{font-size:16px;font-weight:600;}
.guard-item p{font-size:13px;line-height:1.7;color:var(--c-text-2);}
@media (max-width:767px){
  .guard-grid{grid-template-columns:repeat(2,1fr);}
  .guard-item{padding:24px 18px;border-left:none;border-top:1px solid var(--c-line);}
  .guard-item:nth-child(odd){border-right:1px solid var(--c-line);}
  .guard-item:nth-child(1),.guard-item:nth-child(2){border-top:none;}
}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;background-color:var(--c-primary-dark);color:#fff;}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  opacity:.18;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:64px 0;}
.cta-text h2{color:#fff;font-size:clamp(22px,2.2vw,30px);line-height:1.4;font-weight:700;margin-bottom:10px;}
.cta-text p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.78);max-width:640px;}
.cta-actions{display:flex;gap:14px;flex:0 0 auto;}
@media (max-width:991px){
  .cta-inner{flex-direction:column;align-items:flex-start;padding:48px 0;}
  .cta-actions{width:100%;flex-direction:column;gap:12px;}
}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media (max-width:991px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:767px){.news-grid{grid-template-columns:1fr;}}
.news-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:12px;
  transition:transform .22s ease,box-shadow .22s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.news-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--c-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-title:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px;}
.news-desc{
  font-size:15px;line-height:1.75;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:16px;border-top:1px dashed var(--c-line);
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
}
.news-time{font-size:13px;color:var(--c-text-2);}
.news-read{margin-left:auto;font-size:14px;font-weight:600;color:var(--c-primary);}
.news-read:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px;}
.news-empty{
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.news-empty i{font-size:34px;color:var(--c-secondary);}
.news-empty p{font-size:15px;color:var(--c-text-2);}
@media (max-width:767px){.news-empty .btn-line{width:auto;min-height:44px;}}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-acc .accordion-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;margin-bottom:12px;box-shadow:var(--sh-1);
}
.faq-acc .accordion-button{
  background:#fff;color:var(--c-text);font-size:16px;font-weight:600;
  padding:18px 20px;border-radius:var(--r-card) !important;box-shadow:none;
  display:flex;align-items:center;gap:12px;border-left:3px solid transparent;
  transition:border-color .22s ease,color .22s ease,background .22s ease;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--c-primary);background:#FBF9F6;border-left:3px solid var(--c-accent);
}
.faq-acc .accordion-button::after{display:none;}
.faq-acc .faq-ico{margin-left:auto;color:var(--c-secondary);transition:transform .25s ease;font-size:15px;}
.faq-acc .accordion-button:not(.collapsed) .faq-ico{transform:rotate(180deg);}
.faq-acc .accordion-body{
  padding:4px 20px 22px;font-size:15px;line-height:1.85;color:var(--c-text-2);
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary-dark);color:rgba(255,255,255,.76);padding-top:64px;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:32px;padding-bottom:48px;}
.foot-col h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:16px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-brand .brand-mark{background:rgba(255,255,255,.12);}
.foot-brand strong{color:#fff;font-size:19px;font-weight:700;}
.foot-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:320px;}
.foot-list{display:flex;flex-direction:column;gap:10px;}
.foot-list a,.foot-list span{font-size:14px;color:rgba(255,255,255,.72);}
.foot-list a:hover{color:#FFB37A;}
.foot-form{display:flex;flex-direction:column;gap:12px;margin-top:4px;}
.foot-form label{font-size:13px;color:rgba(255,255,255,.66);}
.foot-form input{
  height:44px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:14px;
}
.foot-form input::placeholder{color:rgba(255,255,255,.42);}
.foot-form input:focus{outline:none;border-color:var(--c-accent);background:rgba(255,255,255,.1);}
.foot-contact{font-size:14px;color:rgba(255,255,255,.72);line-height:1.9;}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0;font-size:13px;color:rgba(255,255,255,.55);flex-wrap:wrap;
}
.foot-bottom a{color:rgba(255,255,255,.66);}
.foot-bottom a:hover{color:#FFB37A;}
@media (max-width:991px){.foot-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:575px){.foot-grid{grid-template-columns:1fr;gap:28px;}}

/* ---------- 回到顶部 ---------- */
.back-top{
  position:fixed;right:24px;bottom:28px;z-index:1040;
  width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;color:var(--c-primary);
  box-shadow:var(--sh-2);display:flex;align-items:center;justify-content:center;
  font-size:18px;opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background .2s ease,color .2s ease;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
@media (max-width:767px){.back-top{right:16px;bottom:18px;width:40px;height:40px;font-size:16px;}}

@media (max-width:991px){
  .nav-search,.hot-tags{display:none;}
  .nav-toggle{display:inline-flex;}
  .channel-bar{display:none;}
  .head-top{height:58px;justify-content:space-between;}
}

/* roulang page: article */
:root{
  --c-primary:#123A33;
  --c-primary-dark:#0B211D;
  --c-primary-soft:#E7EFEC;
  --c-accent:#FF6A13;
  --c-accent-dark:#E8570A;
  --c-secondary:#2E9E86;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFEBE4;
  --c-text:#1A2422;
  --c-text-2:#5C6B67;
  --c-line:#E1DCD3;

  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;

  --sh-1:0 1px 2px rgba(18,58,51,.06);
  --sh-2:0 8px 24px -12px rgba(18,58,51,.18);
  --sh-3:0 16px 32px -14px rgba(18,58,51,.26);

  --bs-primary:#123A33;
  --bs-body-bg:#F7F5F1;
  --bs-body-color:#1A2422;
  --bs-border-color:#E1DCD3;
  --bs-border-radius:16px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;}
a{color:var(--c-text);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-accent);}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;}

.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.site-container{max-width:1320px;}}
@media (max-width:767px){.site-container{padding:0 16px;}}

/* ============ 头部 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 6px 18px rgba(18,58,51,.10);}
.brand-row{background:var(--c-surface);}
.brand-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:56px;
}
.brand-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--c-primary);
  color:#fff;font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;font-size:19px;font-weight:700;color:var(--c-primary);}
.brand-text i{font-style:normal;font-size:10px;letter-spacing:1.6px;color:var(--c-text-2);font-weight:500;margin-top:3px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--c-text);
  border-radius:8px;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.search-box{
  margin-left:auto;
  display:flex;align-items:center;gap:8px;
  width:250px;height:38px;
  padding:0 12px;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:var(--c-surface-alt);
  transition:border-color .2s ease,background .2s ease;
}
.search-box i{color:var(--c-text-2);font-size:14px;}
.search-box input{
  flex:1;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--c-text);min-width:0;
}
.search-box:focus-within{border-color:var(--c-accent);background:#fff;}
.hamburger{
  display:none;
  width:42px;height:42px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;color:var(--c-primary);font-size:22px;line-height:1;
  align-items:center;justify-content:center;
}

.hot-row{background:var(--c-surface-alt);border-top:1px solid var(--c-line);}
.hot-inner{display:flex;align-items:center;gap:10px;height:38px;overflow-x:auto;scrollbar-width:none;}
.hot-inner::-webkit-scrollbar{display:none;}
.hot-label{
  flex:0 0 auto;font-size:12px;font-weight:600;color:#fff;
  background:var(--c-accent);border-radius:var(--r-pill);padding:3px 10px;
}
.hot-tag{
  flex:0 0 auto;font-size:13px;color:var(--c-text-2);
  padding:3px 10px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--c-line);
  transition:all .2s ease;white-space:nowrap;
}
.hot-tag:hover{color:var(--c-primary);border-color:var(--c-secondary);background:var(--c-primary-soft);}

.channel-bar{background:var(--c-primary);}
.channel-inner{display:flex;align-items:center;gap:6px;height:48px;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  flex:0 0 auto;
  position:relative;
  padding:6px 14px;
  font-size:15px;color:rgba(255,255,255,.82);
  border-radius:8px;white-space:nowrap;
  transition:all .2s ease;
}
.channel-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--c-accent);transform:scaleX(0);transition:transform .22s ease;
}
.channel-link:hover{color:#fff;}
.channel-link:hover::after{transform:scaleX(1);}
.channel-link.is-active{color:#fff;font-weight:600;}
.channel-link.is-active::after{transform:scaleX(1);}

.site-header.is-stuck .brand-row{display:none;}
.site-header.is-stuck .channel-inner{height:44px;}
.site-header.is-stuck .channel-link{font-size:14px;}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,33,29,.45);
  opacity:0;visibility:hidden;transition:.25s ease;z-index:1040;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:340px;
  background:var(--c-surface);z-index:1050;
  border-radius:20px 0 0 20px;
  padding:20px 20px 32px;
  transform:translateX(100%);transition:transform .28s ease;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head strong{font-size:17px;color:var(--c-primary);}
.drawer-close{
  width:36px;height:36px;border:1px solid var(--c-line);background:#fff;
  border-radius:10px;color:var(--c-text);font-size:18px;
}
.drawer .search-box{margin:0 0 18px;width:100%;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  padding:12px 4px;font-size:15px;border-bottom:1px dashed var(--c-line);
}
.drawer-nav a.is-active{color:var(--c-accent);font-weight:600;}
.drawer-hot{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}

/* ============ 主体 ============ */
.page-main{padding:28px 0 0;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
  font-size:13px;color:var(--c-text-2);margin-bottom:22px;
}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-accent);}
.crumb .sep{color:#B7B0A5;}
.crumb .current{color:var(--c-text);}

.article-head{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:32px 36px;
  box-shadow:var(--sh-1);
  margin-bottom:32px;
}
.article-head h1{
  font-size:clamp(26px,3vw,40px);
  line-height:1.32;
  font-weight:700;
  color:var(--c-primary-dark);
  margin:14px 0 18px;
  letter-spacing:-.2px;
}
.meta-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--c-text-2);
}
.meta-line .dot{color:#C6BFB4;}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1.4;
  padding:4px 10px;border-radius:var(--r-pill);
  background:#E6F4F0;color:#1F7A66;font-weight:600;
}
.tag-pill.accent{background:var(--c-accent);color:#fff;}

.article-wrap{display:grid;grid-template-columns:minmax(0,760px);justify-content:center;gap:48px;}
@media (min-width:1200px){
  .article-wrap{grid-template-columns:240px minmax(0,760px);justify-content:center;}
  .side-toc{order:-1;}
}
.side-toc{
  align-self:start;
  position:sticky;top:132px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--sh-1);
}
.side-toc h2{
  font-size:14px;font-weight:700;color:var(--c-primary);
  margin:0 0 12px;padding-left:10px;position:relative;
}
.side-toc h2::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:4px;
  border-radius:2px;background:var(--c-accent);
}
.side-toc a{
  display:block;font-size:13px;color:var(--c-text-2);
  padding:7px 10px;border-radius:8px;
}
.side-toc a:hover{background:var(--c-primary-soft);color:var(--c-primary);}

.article-body{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:36px 40px 44px;
  box-shadow:var(--sh-1);
  font-size:16px;
  line-height:1.9;
  color:var(--c-text);
  overflow-wrap:break-word;
}
.article-body p{margin:0 0 18px;}
.article-body h2{
  font-size:clamp(20px,2vw,26px);
  font-weight:700;
  line-height:1.4;
  color:var(--c-primary-dark);
  margin:40px 0 16px;
  padding-left:14px;
  position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--c-accent);
}
.article-body h3{font-size:20px;font-weight:600;line-height:1.45;margin:28px 0 12px;color:var(--c-primary);}
.article-body blockquote{
  margin:24px 0;
  padding:16px 20px;
  background:var(--c-surface-alt);
  border-left:4px solid var(--c-accent);
  border-radius:12px;
  color:var(--c-text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:1.4em;}
.article-body li{margin-bottom:8px;line-height:1.8;}
.article-body img{border-radius:var(--r-img);margin:22px auto;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{
  font-size:13px;color:var(--c-text-2);text-align:center;margin-top:10px;
}
.article-body a{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--c-accent-dark);}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;
}
.article-body th,.article-body td{
  border:1px solid var(--c-line);padding:10px 14px;text-align:left;
}
.article-body th{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;}

.empty-state{
  text-align:center;
  padding:64px 24px;
  background:var(--c-surface);
  border:1px dashed var(--c-line);
  border-radius:var(--r-card);
}
.empty-state i{font-size:40px;color:var(--c-secondary);}
.empty-state p{margin:14px 0 20px;color:var(--c-text-2);font-size:15px;}

/* 按钮 */
.btn-accent,.btn-ghost,.btn-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  font-size:15px;font-weight:600;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:all .22s ease;
}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:var(--sh-2);}
.btn-accent:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);}
.btn-accent:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-secondary);}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.btn-light{background:#fff;color:var(--c-primary);}
.btn-light:hover{background:var(--c-primary-soft);color:var(--c-primary);transform:translateY(-2px);}
.btn-block{width:100%;}

/* 相关推荐 */
.section-block{margin:64px 0;}
.section-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-bottom:24px;
}
.section-title h2{
  font-size:clamp(20px,2.2vw,28px);
  font-weight:700;color:var(--c-primary-dark);
  margin:0;padding-left:14px;position:relative;
}
.section-title h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--c-accent);
}
.section-title .more-link{font-size:14px;color:var(--c-text-2);}
.section-title .more-link:hover{color:var(--c-accent);}

.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.rel-cover{overflow:hidden;aspect-ratio:16/10;background:var(--c-surface-alt);}
.rel-cover img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease;}
.rel-card:hover .rel-cover img{transform:scale(1.03);}
.rel-body{padding:18px;display:flex;flex-direction:column;gap:12px;flex:1;}
.rel-body h3{
  font-size:17px;font-weight:600;line-height:1.5;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-body h3 a:hover{color:var(--c-accent);}
.rel-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-2);margin-top:auto;}

/* CTA */
.cta-band{
  background:linear-gradient(90deg,rgba(18,58,51,.94),rgba(11,33,29,.82)),url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  border-radius:var(--r-card);
  padding:48px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  color:#fff;
}
.cta-band h2{font-size:clamp(20px,2.2vw,28px);font-weight:700;margin:0 0 10px;color:#fff;}
.cta-band p{margin:0;font-size:15px;color:rgba(255,255,255,.82);max-width:560px;}

/* 返回顶部 */
.back-top{
  position:fixed;right:24px;bottom:32px;z-index:1020;
  width:44px;height:44px;border-radius:50%;
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);font-size:18px;
  opacity:0;visibility:hidden;transition:.25s ease;
}
.back-top.is-show{opacity:1;visibility:visible;}
.back-top:hover{background:var(--c-accent);color:#fff;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-primary-dark);color:rgba(255,255,255,.78);margin-top:80px;padding:64px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px;}
.foot-col h4{font-size:15px;font-weight:600;color:#fff;margin:0 0 16px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-brand strong{font-size:18px;color:#fff;}
.foot-brand .brand-mark{background:var(--c-accent);}
.foot-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);margin:0;}
.foot-list{display:flex;flex-direction:column;gap:10px;font-size:14px;}
.foot-list a,.foot-list span{color:rgba(255,255,255,.74);}
.foot-list a:hover{color:var(--c-accent);}
.foot-contact{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);margin:0 0 12px;}
.foot-form label{display:block;font-size:14px;color:rgba(255,255,255,.8);margin-bottom:8px;}
.foot-form input{
  width:100%;height:44px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.08);
  color:#fff;padding:0 14px;font-size:14px;margin-bottom:12px;outline:none;
}
.foot-form input::placeholder{color:rgba(255,255,255,.45);}
.foot-form input:focus{border-color:var(--c-accent);}
.foot-bottom{
  margin-top:48px;
  padding:20px 0 28px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}
.foot-bottom a{color:rgba(255,255,255,.72);}
.foot-bottom a:hover{color:var(--c-accent);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .side-toc{position:static;margin-bottom:24px;}
  .article-wrap{grid-template-columns:minmax(0,760px);}
}
@media (max-width:991px){
  .main-nav,.brand-row .search-box,.hot-row{display:none;}
  .hamburger{display:flex;margin-left:auto;}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.8;}
  .article-head{padding:24px 20px;border-radius:14px;}
  .article-head h1{font-size:clamp(22px,5.6vw,28px);}
  .article-body{padding:24px 20px 30px;}
  .rel-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 22px;}
  .cta-band .btn-light,.cta-band .btn-accent{width:100%;height:48px;}
  .back-top{width:40px;height:40px;right:16px;bottom:20px;}
  .section-block{margin:48px 0;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#123A33;
  --c-primary-dark:#0B211D;
  --c-primary-soft:#E7EFEC;
  --c-accent:#FF6A13;
  --c-accent-dark:#E8570A;
  --c-secondary:#2E9E86;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFEBE4;
  --c-text:#1A2422;
  --c-text-2:#5C6B67;
  --c-line:#E1DCD3;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(18,58,51,.06);
  --sh-2:0 8px 24px -12px rgba(18,58,51,.18);
  --sh-3:0 16px 32px -14px rgba(18,58,51,.26);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --bs-primary:#123A33;
  --bs-body-bg:#F7F5F1;
  --bs-body-color:#1A2422;
  --bs-border-color:#E1DCD3;
  --bs-border-radius:16px;
  --bs-link-color:#2E9E86;
  --bs-link-hover-color:#E8570A;
  --bs-font-sans-serif:var(--font-cn);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-accent)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-text);letter-spacing:.2px}
p{margin:0 0 1.1em}
ul,ol{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";font-family:Inter,system-ui,var(--font-cn)}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}

.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.site-container{max-width:1320px}}
@media (max-width:767px){.site-container{padding:0 16px}}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(18,58,51,.10)}
.header-top{height:56px}
.top-inner{display:flex;align-items:center;gap:20px;height:56px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;font-weight:700;font-size:17px;
  font-family:Inter,system-ui,sans-serif;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;color:var(--c-primary);letter-spacing:.5px}
.brand-text em{font-style:normal;font-size:11px;color:var(--c-text-2);letter-spacing:1.4px;text-transform:uppercase}
.primary-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.primary-nav a{
  position:relative;padding:6px 10px;font-size:15px;color:var(--c-text-2);white-space:nowrap;
}
.primary-nav a::after{
  content:"";position:absolute;left:10px;right:10px;bottom:0;height:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:center;
  transition:transform .22s ease;
}
.primary-nav a:hover{color:var(--c-primary)}
.primary-nav a:hover::after{transform:scaleX(1)}
.primary-nav a.is-active{color:var(--c-primary);font-weight:700}
.primary-nav a.is-active::after{transform:scaleX(1)}
.search-box{
  margin-left:auto;position:relative;display:flex;align-items:center;
  width:230px;flex-shrink:0;
}
.search-box i{
  position:absolute;left:12px;font-size:15px;color:var(--c-text-2);pointer-events:none;
}
.search-box input{
  width:100%;height:38px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:var(--c-bg);
  padding:0 12px 0 36px;font-size:14px;color:var(--c-text);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box input::placeholder{color:#96A19D}
.search-box input:focus{
  outline:none;background:#fff;border-color:var(--c-accent);
  box-shadow:0 0 0 3px rgba(255,106,19,.14);
}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:#fff;color:var(--c-primary);
  align-items:center;justify-content:center;font-size:19px;cursor:pointer;
}
.menu-toggle:hover{border-color:var(--c-secondary);color:var(--c-secondary)}

.hot-bar{border-top:1px dashed var(--c-line);background:rgba(247,245,241,.6)}
.hot-inner{display:flex;align-items:center;gap:8px;height:38px;overflow-x:auto;scrollbar-width:none}
.hot-inner::-webkit-scrollbar{display:none}
.hot-label{font-size:12px;color:var(--c-text-2);flex-shrink:0;letter-spacing:.5px}
.hot-tag{
  flex-shrink:0;font-size:12px;line-height:1;padding:6px 10px;border-radius:999px;
  background:var(--c-primary-soft);color:#1F7A66;white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.hot-tag:hover{background:var(--c-secondary);color:#fff}

.channel-bar{background:#fff;border-top:1px solid var(--c-line)}
.channel-inner{display:flex;align-items:center;gap:4px;height:48px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;padding:0 14px;line-height:48px;font-size:15px;
  color:var(--c-text-2);white-space:nowrap;
}
.channel-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:11px;height:2px;
  background:var(--c-accent);transform:scaleX(0);transition:transform .22s ease;
}
.channel-link:hover{color:var(--c-primary)}
.channel-link:hover::after{transform:scaleX(1)}
.channel-link.is-active{color:var(--c-primary);font-weight:700}
.channel-link.is-active::after{transform:scaleX(1)}
.is-scrolled .channel-link{font-size:14px}
.is-scrolled .hot-bar{display:none}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,33,29,.45);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:1050;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:340px;z-index:1060;
  background:#fff;border-radius:20px 0 0 20px;padding:24px 20px;
  transform:translateX(102%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{
  width:36px;height:36px;border-radius:var(--r-btn);border:1px solid var(--c-line);
  background:#fff;color:var(--c-primary);display:flex;align-items:center;justify-content:center;
  font-size:18px;cursor:pointer;
}
.drawer-group{margin-bottom:24px}
.drawer-group h4{font-size:13px;color:var(--c-text-2);letter-spacing:1px;font-weight:600;margin-bottom:10px}
.drawer-link{
  display:block;padding:11px 14px;border-radius:var(--r-btn);font-size:15px;
  color:var(--c-text);background:var(--c-bg);margin-bottom:8px;
}
.drawer-link.is-active{background:var(--c-primary);color:#fff;font-weight:600}
.drawer-link:hover{color:var(--c-accent-dark)}

/* ============ 按钮 ============ */
.btn-accent,.btn-ghost,.btn-light-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1)}
.btn-accent:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-accent:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-secondary)}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light-solid{background:#fff;color:var(--c-primary);border-color:#fff}
.btn-light-solid:hover{background:#fff;color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-block{width:100%}
.btn-sm{height:36px;padding:0 16px;font-size:13.5px}

/* ============ 通用板块 ============ */
.section{padding:80px 0}
.section-alt{background:var(--c-surface-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-title{position:relative;padding-left:16px;font-size:clamp(24px,2.4vw,32px);line-height:1.32}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--c-accent);
}
.section-sub{margin-top:8px;padding-left:16px;font-size:15px;color:var(--c-text-2);line-height:1.75}
.section-more{font-size:14px;font-weight:600;color:var(--c-secondary);display:inline-flex;align-items:center;gap:6px}
.section-more:hover{color:var(--c-accent)}
@media (max-width:767px){
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px}
}

/* ============ 分类横幅 ============ */
.cat-hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:linear-gradient(90deg,rgba(18,58,51,.94) 0%,rgba(18,58,51,.72) 48%,rgba(18,58,51,.42) 100%),
                   url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;opacity:.4;
}
.cat-hero-inner{position:relative;z-index:2;padding:56px 0 52px;max-width:760px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:13px;color:rgba(255,255,255,.76);margin-bottom:18px}
.crumb a:hover{color:#fff}
.crumb .sep{opacity:.65}
.crumb .cur{color:#fff;font-weight:600}
.cat-hero h1{color:#fff;font-size:clamp(30px,3.4vw,46px);line-height:1.28;font-weight:700;margin-bottom:16px}
.cat-hero p{color:rgba(255,255,255,.86);font-size:16px;line-height:1.85;max-width:640px;margin-bottom:24px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags span{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;padding:6px 12px;border-radius:999px;
  background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.22);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ============ 主区布局 ============ */
.cat-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:32px;align-items:start}
.side-panel{
  position:sticky;top:150px;background:var(--c-primary-soft);
  border-radius:var(--r-card);padding:22px 20px;
}
.side-panel h3{font-size:15px;font-weight:700;color:var(--c-primary);margin-bottom:12px}
.side-block{padding-bottom:18px;margin-bottom:18px;border-bottom:1px dashed #CFDDD8}
.side-block:last-child{border-bottom:0;padding-bottom:0;margin-bottom:0}
.filter-list{display:flex;flex-wrap:wrap;gap:8px}
.filter-chip{
  font-size:12.5px;line-height:1;padding:8px 12px;border-radius:999px;
  background:#fff;color:var(--c-text-2);border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.filter-chip:hover{border-color:var(--c-secondary);color:var(--c-primary)}
.filter-chip.is-on{background:var(--c-primary);color:#fff;font-weight:600}
.side-note{font-size:13px;line-height:1.75;color:var(--c-text-2)}
.side-metric{display:flex;align-items:baseline;gap:8px;margin-bottom:6px}
.side-metric strong{font-size:24px;color:var(--c-primary);font-family:Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums}
.side-metric span{font-size:13px;color:var(--c-text-2)}

/* ============ 卡片 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.entry-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:#D3CCC0}
.entry-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--c-primary-soft)}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease}
.entry-card:hover .entry-thumb img{transform:scale(1.03)}
.badge-hot{
  position:absolute;left:12px;top:12px;z-index:2;
  font-size:12px;line-height:1;padding:5px 10px;border-radius:999px;
  background:var(--c-accent);color:#fff;font-weight:600;letter-spacing:.5px;
}
.badge-soft{
  position:absolute;left:12px;top:12px;z-index:2;
  font-size:12px;line-height:1;padding:5px 10px;border-radius:999px;
  background:rgba(255,255,255,.94);color:#1F7A66;font-weight:600;
}
.entry-body{padding:18px 18px 0;flex:1;display:flex;flex-direction:column}
.entry-body h3{
  font-size:17px;line-height:1.4;font-weight:600;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-body h3 a:hover{color:var(--c-accent)}
.entry-desc{
  font-size:14px;line-height:1.75;color:var(--c-text-2);margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.spec-row{
  display:flex;flex-wrap:wrap;gap:6px 14px;padding:12px 0;
  border-top:1px dashed var(--c-line);font-size:12.5px;color:var(--c-text-2);
}
.spec-row b{color:var(--c-primary);font-weight:600}
.entry-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 18px 18px;margin-top:auto;
}
.tag-brand{
  font-size:12px;line-height:1;padding:5px 10px;border-radius:999px;
  background:#E6F4F0;color:#1F7A66;font-weight:600;
}
.tag-accent{
  font-size:12px;line-height:1;padding:5px 10px;border-radius:999px;
  background:var(--c-accent);color:#fff;font-weight:600;
}
.link-arrow{font-size:13.5px;font-weight:600;color:var(--c-secondary);display:inline-flex;align-items:center;gap:5px}
.link-arrow:hover{color:var(--c-accent)}

/* ============ 参数一览 ============ */
.metric-strip{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden;
}
.metric-item{padding:26px 22px;border-right:1px solid var(--c-line)}
.metric-item:last-child{border-right:0}
.metric-item .k{font-size:13px;color:var(--c-text-2);margin-bottom:8px}
.metric-item .v{
  font-size:28px;font-weight:700;color:var(--c-primary);line-height:1.1;
  font-family:Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums;
}
.metric-item .d{font-size:13px;color:var(--c-text-2);margin-top:8px;line-height:1.6}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion-item{
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  background:#fff;margin-bottom:12px;box-shadow:none;
}
.accordion-button{
  position:relative;font-size:16.5px;font-weight:600;color:var(--c-text);
  background:#fff;padding:18px 56px 18px 20px;box-shadow:none;
  display:flex;align-items:center;width:100%;text-align:left;border:0;cursor:pointer;
}
.accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--c-accent);border-radius:0 2px 2px 0;
  transform:scaleY(0);transform-origin:center;transition:transform .22s ease;
}
.accordion-button:not(.collapsed)::before{transform:scaleY(1)}
.accordion-button::after{display:none}
.accordion-button:not(.collapsed){color:var(--c-primary);background:#fff}
.accordion-button:focus{box-shadow:none;outline:none}
.accordion-button:focus-visible{outline:2px solid var(--c-accent);outline-offset:-3px}
.acc-icon{
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:18px;color:var(--c-secondary);transition:transform .25s ease,color .25s ease;
}
.accordion-button:not(.collapsed) .acc-icon{transform:translateY(-50%) rotate(180deg);color:var(--c-accent)}
.accordion-body{
  padding:0 20px 20px 20px;font-size:15px;line-height:1.85;color:var(--c-text-2);
}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(90deg,rgba(11,33,29,.96) 0%,rgba(11,33,29,.82) 52%,rgba(11,33,29,.6) 100%),
                   url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.cta-inner{
  position:relative;z-index:2;padding:56px 0;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.2vw,30px);line-height:1.35;margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.82);font-size:15px;margin:0;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-shrink:0}
@media (max-width:767px){
  .cta-inner{flex-direction:column;align-items:flex-start;padding:40px 0;gap:20px}
  .cta-actions{width:100%}
  .cta-actions .btn-accent,.cta-actions .btn-light-solid{flex:1}
}

/* ============ 相关频道 ============ */
.related-channels{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:18px}
.rel-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;padding:10px 16px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);color:var(--c-text);
  transition:border-color .2s ease,color .2s ease,background .2s ease,transform .2s ease;
}
.rel-tag:hover{border-color:var(--c-secondary);color:var(--c-primary);background:var(--c-primary-soft);transform:translateY(-2px)}
.back-home{font-size:14px;color:var(--c-text-2);display:inline-flex;align-items:center;gap:6px}
.back-home:hover{color:var(--c-accent)}

/* ============ Footer ============ */
.site-footer{background:var(--c-primary-dark);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand .brand-mark{background:#fff;color:var(--c-primary-dark)}
.foot-brand strong{color:#fff;font-size:17px;letter-spacing:.5px}
.foot-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:320px}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.foot-list{display:flex;flex-direction:column;gap:10px}
.foot-list a,.foot-list span{font-size:14px;color:rgba(255,255,255,.68)}
.foot-list a:hover{color:var(--c-accent)}
.foot-contact{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin-bottom:14px}
.foot-form{display:flex;flex-direction:column;gap:10px}
.foot-form label{font-size:13px;color:rgba(255,255,255,.6)}
.foot-form input{
  height:44px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.07);color:#fff;padding:0 14px;font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.foot-form input::placeholder{color:rgba(255,255,255,.42)}
.foot-form input:focus{
  outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(255,106,19,.18);
}
.foot-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
.foot-bottom a{color:rgba(255,255,255,.75)}
.foot-bottom a:hover{color:var(--c-accent)}

/* 回到顶部 */
.to-top{
  position:fixed;right:24px;bottom:28px;width:44px;height:44px;border-radius:50%;
  background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:18px;box-shadow:var(--sh-2);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease,background .2s ease;z-index:1040;
}
.to-top.is-show{opacity:1;visibility:visible}
.to-top:hover{background:var(--c-accent);color:#fff}
@media (max-width:767px){.to-top{width:40px;height:40px;right:16px;bottom:20px;font-size:16px}}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metric-strip{grid-template-columns:repeat(2,1fr)}
  .metric-item:nth-child(2){border-right:0}
  .metric-item:nth-child(1),.metric-item:nth-child(2){border-bottom:1px solid var(--c-line)}
}
@media (max-width:991px){
  .primary-nav,.search-box{display:none}
  .menu-toggle{display:flex;margin-left:auto}
  .brand{margin-right:auto}
  .cat-layout{grid-template-columns:1fr;gap:24px}
  .side-panel{position:static;top:auto}
  .foot-grid{grid-template-columns:repeat(2,1fr)}
  .cat-hero-inner{padding:44px 0 40px}
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.8}
  .card-grid{grid-template-columns:1fr}
  .metric-strip{grid-template-columns:repeat(2,1fr)}
  .hero-actions{width:100%}
  .hero-actions .btn-accent,.hero-actions .btn-ghost{flex:1;height:48px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:44px}
  .foot-bottom{flex-direction:column;align-items:flex-start;margin-top:32px}
}
@media (max-width:520px){
  .metric-strip{grid-template-columns:1fr}
  .metric-item{border-right:0;border-bottom:1px solid var(--c-line)}
  .metric-item:last-child{border-bottom:0}
}

/* roulang page: category2 */
:root{
  --c-primary:#123A33;
  --c-primary-dark:#0B211D;
  --c-primary-soft:#E7EFEC;
  --c-accent:#FF6A13;
  --c-accent-dark:#E8570A;
  --c-secondary:#2E9E86;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFEBE4;
  --c-text:#1A2422;
  --c-text-2:#5C6B67;
  --c-line:#E1DCD3;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(18,58,51,.06);
  --sh-2:0 8px 24px -12px rgba(18,58,51,.18);
  --sh-3:0 16px 32px -14px rgba(18,58,51,.26);
  --bs-primary:#123A33;
  --bs-body-bg:#F7F5F1;
  --bs-body-color:#1A2422;
  --bs-border-color:#E1DCD3;
  --bs-border-radius:12px;
  --bs-link-color:#123A33;
  --bs-link-hover-color:#E8570A;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .2s ease}
img{display:block;max-width:100%}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}
.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.site-container{max-width:1320px}}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 6px 18px rgba(18,58,51,.10)}
.brand-row{border-bottom:1px solid var(--c-line);transition:min-height .25s ease}
.brand-inner{display:flex;align-items:center;gap:24px;min-height:56px;padding:8px 24px}
.brand-logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-logo:hover{color:var(--c-primary)}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;
  font-variant-numeric:tabular-nums;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:18px;font-weight:700;letter-spacing:.2px}
.brand-text em{font-style:normal;font-size:10px;letter-spacing:1.2px;color:var(--c-text-2);text-transform:uppercase;margin-top:3px}
.head-search{position:relative;flex:1 1 auto;max-width:400px}
.head-search i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--c-text-2);font-size:15px}
.head-search input{
  width:100%;height:40px;border-radius:var(--r-btn);border:1px solid var(--c-line);
  background:var(--c-surface-alt);padding:0 14px 0 38px;font-size:14px;color:var(--c-text);
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.head-search input::placeholder{color:#8B9793}
.head-search input:focus{outline:none;background:#fff;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(255,106,19,.16)}
.hot-tags{display:flex;align-items:center;gap:8px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.hot-tags::-webkit-scrollbar{display:none}
.hot-label{font-size:12px;color:var(--c-text-2);white-space:nowrap}
.hot-tags a{
  font-size:13px;padding:4px 12px;border-radius:999px;background:var(--c-primary-soft);
  color:#1F7A66;white-space:nowrap;transition:background .2s ease,color .2s ease;
}
.hot-tags a:hover{background:var(--c-accent);color:#fff}
.burger{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-primary);font-size:20px;align-items:center;justify-content:center;
}
.burger:hover{background:var(--c-primary-soft)}
.channel-bar{background:var(--c-surface)}
.channel-inner{display:flex;align-items:center;gap:28px;height:48px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;display:inline-flex;align-items:center;height:48px;
  font-size:15px;font-weight:500;color:var(--c-text-2);white-space:nowrap;transition:color .2s ease,font-size .25s ease;
}
.channel-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-accent);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.channel-link:hover{color:var(--c-primary)}
.channel-link:hover::after{transform:scaleX(1)}
.channel-link.is-active{color:var(--c-primary);font-weight:700}
.channel-link.is-active::after{transform:scaleX(1)}
.site-header.is-stuck .brand-inner{min-height:44px;padding:4px 24px}
.site-header.is-stuck .brand-mark{width:30px;height:30px;font-size:15px}
.site-header.is-stuck .channel-inner{height:44px}
.site-header.is-stuck .channel-link{height:44px;font-size:14px}

/* ===== Drawer ===== */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,33,29,.45);z-index:1050;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.site-drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:360px;z-index:1060;
  background:#fff;border-radius:20px 0 0 20px;padding:24px;overflow-y:auto;
  transform:translateX(105%);transition:transform .28s ease;
}
.site-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-head strong{font-size:17px}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);background:#fff;font-size:18px;color:var(--c-primary)}
.drawer-search{position:relative;margin-bottom:20px}
.drawer-search input{width:100%;height:44px;border-radius:var(--r-btn);border:1px solid var(--c-line);background:var(--c-surface-alt);padding:0 14px;font-size:14px}
.drawer-list{display:flex;flex-direction:column;gap:6px;margin-bottom:22px}
.drawer-list a{padding:11px 14px;border-radius:10px;font-size:15px;color:var(--c-text-2)}
.drawer-list a:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.drawer-list a.is-active{background:var(--c-primary);color:#fff;font-weight:600}
.drawer-sub{font-size:13px;color:var(--c-text-2);margin-bottom:10px}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px}
.drawer-tags a{font-size:13px;padding:5px 12px;border-radius:999px;background:var(--c-primary-soft);color:#1F7A66}

/* ===== Buttons ===== */
.btn-accent,.btn-ghost,.btn-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-accent:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;border-color:var(--c-secondary);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:var(--c-secondary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:#fff;color:var(--c-primary)}
.btn-light:hover{background:#fff;color:var(--c-accent-dark);transform:translateY(-2px);box-shadow:0 16px 32px -14px rgba(0,0,0,.5)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* ===== Page Banner ===== */
.page-banner{
  position:relative;display:flex;align-items:center;min-height:320px;color:#fff;
  background-image:linear-gradient(90deg,rgba(18,58,51,.93),rgba(18,58,51,.52)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.page-banner::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:48px 48px;
}
.banner-inner{position:relative;z-index:2;padding:56px 24px}
.breadcrumb-line{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.76)}
.breadcrumb-line a{color:rgba(255,255,255,.76)}
.breadcrumb-line a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px}
.breadcrumb-line .cur{color:#fff}
.page-banner h1{
  font-size:clamp(30px,3.4vw,46px);line-height:1.28;font-weight:700;color:#fff;
  margin:16px 0 16px;max-width:820px;
}
.banner-sub{font-size:17px;line-height:1.7;color:rgba(255,255,255,.88);max-width:640px;margin-bottom:22px}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;padding:5px 13px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);color:#fff;
}
.tag-pill i{font-size:14px;color:#7FE0C8}

/* ===== Sections ===== */
.section{padding:80px 0}
.section.alt{background:var(--c-surface-alt)}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-title{
  position:relative;padding-left:14px;font-size:clamp(24px,2.4vw,32px);
  line-height:1.32;font-weight:700;color:var(--c-text);
}
.sec-title::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;background:var(--c-accent);border-radius:2px}
.sec-desc{font-size:15px;line-height:1.75;color:var(--c-text-2);max-width:640px;margin-top:10px}
.sec-link{font-size:15px;font-weight:600;color:var(--c-primary);border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease}
.sec-link:hover{color:var(--c-accent);border-bottom-color:var(--c-accent)}

/* ===== Stat strip ===== */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  margin-top:-52px;position:relative;z-index:5;
}
.stat-item{padding:26px 24px;text-align:left;border-right:1px solid var(--c-line)}
.stat-item:last-child{border-right:0}
.stat-num{font-size:28px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.2}
.stat-num span{font-size:15px;font-weight:600;color:var(--c-secondary);margin-left:4px}
.stat-label{font-size:14px;color:var(--c-text-2);margin-top:6px}

/* ===== Feature rows ===== */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:36px 0}
.feature-row + .feature-row{border-top:1px dashed var(--c-line)}
.feature-row.reverse .feature-media{order:2}
.feature-media{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-2);border:1px solid var(--c-line);background:var(--c-surface)}
.feature-media img{width:100%;height:auto;object-fit:cover;transition:transform .22s ease}
.feature-media:hover img{transform:scale(1.03)}
.feature-body h3{font-size:22px;line-height:1.4;font-weight:600;margin-bottom:8px}
.feature-kicker{display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:4px 10px;border-radius:999px;background:#E6F4F0;color:#1F7A66;margin-bottom:12px}
.feature-body p{font-size:15px;line-height:1.75;color:var(--c-text-2);margin-bottom:6px}
.point-list{margin:18px 0 22px;display:flex;flex-direction:column;gap:12px}
.point-list li{position:relative;padding-left:30px;font-size:15px;line-height:1.75;color:var(--c-text)}
.point-list li i{position:absolute;left:0;top:3px;color:var(--c-secondary);font-size:16px}
.point-list li strong{font-weight:600}

/* ===== Stage cards ===== */
.stage-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stage-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
}
.stage-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3)}
.stage-icon{
  width:44px;height:44px;border-radius:12px;background:var(--c-primary-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:16px;
}
.stage-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.stage-card p{font-size:15px;line-height:1.75;color:var(--c-text-2);margin-bottom:14px}
.param-row{display:flex;flex-wrap:wrap;gap:8px;border-top:1px dashed var(--c-line);padding-top:14px}
.param-row span{font-size:12px;padding:4px 10px;border-radius:999px;background:var(--c-surface-alt);color:var(--c-text-2);font-variant-numeric:tabular-nums}

/* ===== FAQ ===== */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-acc .accordion-item{
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  background:var(--c-surface);margin-bottom:12px;box-shadow:var(--sh-1);
}
.faq-acc .accordion-button{
  background:var(--c-surface);color:var(--c-text);font-size:17px;font-weight:600;
  padding:18px 22px;box-shadow:none;
}
.faq-acc .accordion-button:not(.collapsed){
  background:var(--c-primary-soft);color:var(--c-primary);font-weight:700;
  box-shadow:inset 3px 0 0 var(--c-accent);
}
.faq-acc .accordion-button::after{
  width:16px;height:16px;background-size:16px;filter:invert(28%) sepia(18%) saturate(1100%) hue-rotate(120deg);
  transition:transform .25s ease;
}
.faq-acc .accordion-body{padding:4px 22px 22px;font-size:15px;line-height:1.85;color:var(--c-text-2)}
.faq-acc .accordion-button:focus{box-shadow:inset 3px 0 0 var(--c-accent),0 0 0 3px rgba(255,106,19,.16)}

/* ===== CTA band ===== */
.cta-band{
  border-radius:20px;padding:48px;color:#fff;
  background-image:linear-gradient(100deg,rgba(11,33,29,.95),rgba(18,58,51,.76)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.2vw,30px);line-height:1.35;font-weight:700;margin-bottom:10px}
.cta-band p{font-size:15px;color:rgba(255,255,255,.82);max-width:560px;margin:0}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ===== Related channels ===== */
.rel-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.rel-channels{display:flex;gap:12px;flex-wrap:wrap}
.rel-chip{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;padding:9px 18px;border-radius:999px;
  background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-text);transition:all .2s ease;
}
.rel-chip:hover{border-color:var(--c-secondary);color:var(--c-primary);background:var(--c-primary-soft);transform:translateY(-2px)}
.back-home{font-size:15px;font-weight:600;color:var(--c-primary)}
.back-home:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px}

/* ===== Footer ===== */
.site-footer{background:var(--c-primary-dark);color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px;padding-bottom:40px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand .brand-mark{background:var(--c-accent)}
.foot-brand strong{font-size:18px;color:#fff;font-weight:700}
.foot-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin:0}
.site-footer h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px}
.foot-list{display:flex;flex-direction:column;gap:10px}
.foot-list a,.foot-list span{font-size:14px;color:rgba(255,255,255,.7);transition:color .2s ease}
.foot-list a:hover{color:var(--c-accent)}
.foot-contact{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin-bottom:14px}
.foot-form{display:flex;flex-direction:column;gap:10px}
.foot-form label{font-size:13px;color:rgba(255,255,255,.7)}
.foot-form input{
  height:44px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.08);color:#fff;padding:0 14px;font-size:14px;
}
.foot-form input::placeholder{color:rgba(255,255,255,.45)}
.foot-form input:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(255,106,19,.22)}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}
.foot-bottom a{color:rgba(255,255,255,.75)}
.foot-bottom a:hover{color:var(--c-accent)}

/* ===== Responsive ===== */
@media (max-width:1199px){
  .site-container{padding:0 20px}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--c-line)}
  .stage-grid{grid-template-columns:repeat(2,1fr)}
  .feature-row{gap:40px}
}
@media (max-width:991px){
  .head-search{display:none}
  .hot-tags{display:none}
  .burger{display:inline-flex;margin-left:auto}
  .foot-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{padding:36px}
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.8}
  .site-container{padding:0 16px}
  .brand-inner{padding:8px 16px}
  .brand-text em{display:none}
  .section{padding:48px 0}
  .page-banner{min-height:0}
  .banner-inner{padding:40px 16px}
  .banner-sub{font-size:15px}
  .feature-row{grid-template-columns:1fr;gap:24px;padding:28px 0}
  .feature-row.reverse .feature-media{order:0}
  .stage-grid{grid-template-columns:1fr}
  .stat-strip{margin-top:-32px;grid-template-columns:repeat(2,1fr)}
  .cta-band{padding:28px;border-radius:16px}
  .cta-actions{width:100%}
  .cta-actions .btn-accent,.cta-actions .btn-light{flex:1 1 100%;height:48px}
  .btn-accent,.btn-ghost,.btn-light{min-height:48px}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:28px}
  .rel-wrap{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .brand-text strong{font-size:16px}
  .page-banner h1{font-size:26px}
  .stat-item{padding:20px 16px}
  .stat-num{font-size:24px}
}

/* roulang page: category3 */
:root{
  --c-primary:#123A33;
  --c-primary-dark:#0B211D;
  --c-primary-soft:#E7EFEC;
  --c-accent:#FF6A13;
  --c-accent-dark:#E8570A;
  --c-secondary:#2E9E86;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFEBE4;
  --c-text:#1A2422;
  --c-text-2:#5C6B67;
  --c-line:#E1DCD3;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(18,58,51,.06);
  --sh-2:0 8px 24px -12px rgba(18,58,51,.18);
  --sh-3:0 16px 32px -14px rgba(18,58,51,.26);

  --bs-primary:#123A33;
  --bs-body-bg:#F7F5F1;
  --bs-body-color:#1A2422;
  --bs-border-color:#E1DCD3;
  --bs-border-radius:10px;
  --bs-link-color:#1F7A66;
  --bs-link-hover-color:#FF6A13;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:#1F7A66;text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease;}
a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

.site-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1400px){
  .site-container{max-width:1320px;}
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 6px 18px rgba(18,58,51,.10);}
.head-top{
  display:flex;
  align-items:center;
  gap:20px;
  height:56px;
}
.site-header.is-stuck .head-top{height:50px;}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--c-text);
}
.brand:hover{color:var(--c-text);text-decoration:none;}
.brand-mark{
  width:34px;
  height:34px;
  border-radius:10px;
  background:var(--c-primary);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
  font-size:17px;
  letter-spacing:.5px;
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:.4px;}
.brand-text em{
  font-style:normal;
  font-size:10px;
  letter-spacing:1.6px;
  color:var(--c-text-2);
  text-transform:uppercase;
}
.head-search{
  position:relative;
  flex:1 1 auto;
  max-width:360px;
  margin-left:auto;
}
.head-search i{
  position:absolute;
  left:12px;
  top:50%;
  transform:translateY(-50%);
  color:var(--c-text-2);
  font-size:15px;
  pointer-events:none;
}
.head-search input{
  width:100%;
  height:40px;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:#fff;
  padding:0 14px 0 36px;
  font-size:14px;
  color:var(--c-text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.head-search input::placeholder{color:#9AA6A2;}
.head-search input:focus{
  outline:none;
  border-color:var(--c-accent);
  box-shadow:0 0 0 3px rgba(255,106,19,.16);
}
.head-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.btn-accent{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  height:40px;
  padding:0 18px;
  border:1px solid var(--c-accent);
  border-radius:var(--r-btn);
  background:var(--c-accent);
  color:#fff;
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:background-color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-accent:hover,.btn-accent:focus{
  background:var(--c-accent-dark);
  border-color:var(--c-accent-dark);
  color:#fff;
  text-decoration:none;
  transform:translateY(-2px);
  box-shadow:var(--sh-3);
}
.btn-accent:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-block{width:100%;}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  height:40px;
  padding:0 18px;
  border:1px solid var(--c-secondary);
  border-radius:var(--r-btn);
  background:transparent;
  color:var(--c-primary);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:background-color .2s ease,border-color .2s ease,transform .2s ease,color .2s ease;
}
.btn-ghost:hover,.btn-ghost:focus{
  background:var(--c-primary-soft);
  color:var(--c-primary);
  text-decoration:none;
  transform:translateY(-2px);
}
.btn-light-solid{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-btn);
  border:1px solid #fff;
  background:#fff;
  color:var(--c-primary-dark);
  font-size:15px;
  font-weight:700;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.btn-light-solid:hover,.btn-light-solid:focus{
  background:#F3EFE9;
  color:var(--c-primary-dark);
  text-decoration:none;
  transform:translateY(-2px);
  box-shadow:0 14px 26px -14px rgba(0,0,0,.5);
}
.btn-outline-light-soft{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:46px;
  padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.55);
  background:transparent;
  color:#fff;
  font-size:15px;
  font-weight:600;
  transition:background-color .2s ease,transform .2s ease;
}
.btn-outline-light-soft:hover,.btn-outline-light-soft:focus{
  background:rgba(255,255,255,.14);
  color:#fff;
  text-decoration:none;
  transform:translateY(-2px);
}
.nav-toggle{
  display:none;
  width:40px;
  height:40px;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--c-primary);
  font-size:20px;
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-secondary);color:var(--c-accent);}

.trend-row{border-top:1px solid var(--c-line);}
.trend-inner{
  display:flex;
  align-items:center;
  gap:12px;
  height:38px;
  overflow-x:auto;
  white-space:nowrap;
  scrollbar-width:none;
}
.trend-inner::-webkit-scrollbar{display:none;}
.trend-label{
  font-size:12px;
  color:var(--c-text-2);
  letter-spacing:.4px;
  flex-shrink:0;
}
.trend-tag{
  font-size:12px;
  color:var(--c-primary);
  background:var(--c-primary-soft);
  border-radius:999px;
  padding:4px 12px;
  flex-shrink:0;
  transition:background-color .2s ease,color .2s ease;
}
.trend-tag:hover{background:var(--c-secondary);color:#fff;text-decoration:none;}

.channel-bar{border-top:1px solid var(--c-line);}
.channel-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  font-size:15px;
  color:var(--c-text);
  line-height:48px;
  flex-shrink:0;
  transition:color .2s ease,font-size .2s ease;
}
.channel-link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:8px;
  height:2px;
  background:var(--c-accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease;
}
.channel-link:hover{color:var(--c-accent);text-decoration:none;}
.channel-link:hover::after{transform:scaleX(1);}
.channel-link.is-active{color:var(--c-primary);font-weight:700;}
.channel-link.is-active::after{transform:scaleX(1);}
.site-header.is-stuck .channel-link{font-size:14px;}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(11,33,29,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:1040;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;
  right:0;
  width:82vw;
  max-width:340px;
  height:100%;
  background:#fff;
  border-radius:20px 0 0 20px;
  padding:24px 20px;
  transform:translateX(102%);
  transition:transform .28s ease;
  z-index:1050;
  overflow-y:auto;
  box-shadow:-12px 0 32px -18px rgba(11,33,29,.5);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:20px;
}
.drawer-head strong{font-size:17px;color:var(--c-primary);}
.drawer-close{
  width:36px;height:36px;
  border:1px solid var(--c-line);
  border-radius:10px;
  background:#fff;
  color:var(--c-primary);
  font-size:18px;
  cursor:pointer;
}
.drawer-search{
  position:relative;
  margin-bottom:20px;
}
.drawer-search i{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--c-text-2);}
.drawer-search input{
  width:100%;height:44px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  padding:0 12px 0 36px;font-size:14px;
}
.drawer-search input:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(255,106,19,.16);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px;}
.drawer-nav a{
  padding:12px 14px;
  border-radius:10px;
  color:var(--c-text);
  font-size:15px;
  transition:background-color .2s ease,color .2s ease;
}
.drawer-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary);text-decoration:none;}
.drawer-nav a.is-active{background:var(--c-primary);color:#fff;font-weight:600;}
.drawer-tags-title{font-size:13px;color:var(--c-text-2);margin-bottom:10px;}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.drawer-tags a{
  font-size:12px;background:var(--c-primary-soft);color:var(--c-primary);
  border-radius:999px;padding:5px 12px;
}
.drawer-tags a:hover{background:var(--c-secondary);color:#fff;text-decoration:none;}

/* ============ 页面横幅 ============ */
.page-banner{
  position:relative;
  min-height:320px;
  display:flex;
  align-items:center;
  background-image:linear-gradient(100deg,rgba(18,58,51,.90) 0%,rgba(18,58,51,.62) 58%,rgba(18,58,51,.42) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.page-banner::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.6;
  pointer-events:none;
}
.page-banner .site-container{position:relative;z-index:2;padding-top:56px;padding-bottom:56px;}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.78);
  margin-bottom:18px;
  flex-wrap:wrap;
}
.crumb a{color:rgba(255,255,255,.9);}
.crumb a:hover{color:#FFB27A;text-decoration:underline;text-underline-offset:3px;}
.crumb .sep{opacity:.65;}
.crumb .current{color:#fff;font-weight:600;}
.banner-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.32);
  color:#fff;
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:14px;
}
.page-banner h1{
  font-size:clamp(30px,3.4vw,46px);
  line-height:1.28;
  font-weight:700;
  letter-spacing:.5px;
  max-width:18em;
}
.page-banner .banner-sub{
  margin-top:16px;
  max-width:44em;
  font-size:16px;
  line-height:1.85;
  color:rgba(255,255,255,.86);
}
.banner-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.banner-facts{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
  margin-top:36px;
  max-width:760px;
}
.fact-item{
  border-left:2px solid rgba(255,106,19,.85);
  padding-left:14px;
}
.fact-item b{
  display:block;
  font-size:24px;
  line-height:1.3;
  font-variant-numeric:tabular-nums;
}
.fact-item span{font-size:13px;color:rgba(255,255,255,.76);}

/* ============ 通用板块 ============ */
.section{padding:80px 0;}
.section-alt{background:var(--c-surface-alt);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
  flex-wrap:wrap;
}
.section-title{
  position:relative;
  padding-left:14px;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;
  top:6px;
  bottom:6px;
  width:4px;
  border-radius:2px;
  background:var(--c-accent);
}
.section-title h2{
  font-size:clamp(24px,2.4vw,32px);
  line-height:1.32;
  font-weight:700;
  color:var(--c-primary);
}
.section-title p{
  margin-top:10px;
  font-size:15px;
  color:var(--c-text-2);
  max-width:52em;
}
.section-link{
  font-size:14px;
  font-weight:600;
  color:var(--c-secondary);
  white-space:nowrap;
}
.section-link:hover{color:var(--c-accent);}

/* ============ 时间轴步骤 ============ */
.timeline{
  position:relative;
  padding-left:34px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:9px;
  top:12px;
  bottom:12px;
  width:2px;
  background:linear-gradient(180deg,var(--c-secondary),var(--c-line));
  border-radius:2px;
}
.tl-item{position:relative;margin-bottom:28px;}
.tl-item:last-child{margin-bottom:0;}
.tl-dot{
  position:absolute;
  left:-29px;
  top:26px;
  width:12px;
  height:12px;
  border-radius:50%;
  background:var(--c-accent);
  box-shadow:0 0 0 4px rgba(255,106,19,.18);
}
.tl-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 28px;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:#D6CFC3;}
.tl-top{
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:12px;
  flex-wrap:wrap;
}
.tl-num{
  font-size:15px;
  font-weight:700;
  color:#fff;
  background:var(--c-primary);
  border-radius:8px;
  padding:2px 10px;
  font-variant-numeric:tabular-nums;
  letter-spacing:1px;
}
.tl-card h3{
  font-size:20px;
  line-height:1.4;
  font-weight:600;
  color:var(--c-primary);
}
.tl-card > p{color:var(--c-text-2);font-size:15px;}
.tl-points{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:8px 24px;
  margin-top:16px;
}
.tl-points li{
  position:relative;
  padding-left:20px;
  font-size:14px;
  color:var(--c-text-2);
  line-height:1.75;
}
.tl-points li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:7px;
  height:7px;
  border-radius:2px;
  background:var(--c-secondary);
}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.tag{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  line-height:1.4;
  padding:4px 10px;
  border-radius:999px;
  background:var(--c-primary-soft);
  color:var(--c-primary);
}
.tag-service{background:#E6F4F0;color:#1F7A66;}
.tag-hot{background:var(--c-accent);color:#fff;}

/* ============ 图文对照 ============ */
.split{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:48px;
  align-items:center;
}
.split-media img{
  width:100%;
  height:auto;
  border-radius:var(--r-img);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-2);
  object-fit:cover;
  transition:transform .22s ease;
}
.split-media{overflow:hidden;border-radius:var(--r-img);}
.split-media:hover img{transform:scale(1.03);}
.split-body h3{
  font-size:22px;
  font-weight:700;
  color:var(--c-primary);
  margin-bottom:12px;
}
.split-body p{color:var(--c-text-2);font-size:15px;}
.point-list{margin-top:20px;display:grid;gap:12px;}
.point-list li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  color:var(--c-text);
  line-height:1.75;
}
.point-list li i{
  position:absolute;
  left:0;
  top:2px;
  color:var(--c-secondary);
  font-size:16px;
}
.split-actions{margin-top:24px;}

/* ============ 对比表 ============ */
.table-scroll{
  overflow-x:auto;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:var(--c-surface);
  box-shadow:var(--sh-1);
}
table.compare{
  width:100%;
  min-width:720px;
  border-collapse:collapse;
  font-size:14px;
}
table.compare thead th{
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-weight:700;
  font-size:14px;
  text-align:left;
  padding:16px 20px;
  white-space:nowrap;
  border-bottom:1px solid var(--c-line);
}
table.compare tbody td{
  padding:16px 20px;
  border-bottom:1px solid var(--c-line);
  color:var(--c-text-2);
  line-height:1.75;
  vertical-align:top;
}
table.compare tbody tr:nth-child(even){background:#FBFAF7;}
table.compare tbody tr:last-child td{border-bottom:none;}
table.compare tbody td:first-child{
  color:var(--c-text);
  font-weight:600;
  white-space:nowrap;
}
.table-note{
  margin-top:14px;
  font-size:13px;
  color:var(--c-text-2);
}

/* ============ FAQ ============ */
.faq-acc .accordion-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-acc .accordion-item:hover{box-shadow:var(--sh-2);border-color:#D6CFC3;}
.faq-acc .accordion-header{position:relative;}
.faq-acc .accordion-button{
  position:relative;
  width:100%;
  background:transparent;
  border:0;
  box-shadow:none;
  color:var(--c-text);
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  padding:20px 56px 20px 22px;
  text-align:left;
  transition:color .2s ease,background-color .2s ease;
}
.faq-acc .accordion-button::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--c-accent);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .22s ease;
}
.faq-acc .accordion-button:not(.collapsed)::before{transform:scaleY(1);}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--c-primary);
  font-weight:700;
  background:transparent;
}
.faq-acc .accordion-button::after{
  content:"";
  position:absolute;
  right:24px;
  top:50%;
  width:9px;
  height:9px;
  margin:0;
  background-image:none;
  border-right:2px solid var(--c-secondary);
  border-bottom:2px solid var(--c-secondary);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .22s ease,border-color .22s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  border-color:var(--c-accent);
  transform:translateY(-30%) rotate(-135deg);
}
.faq-acc .accordion-button:focus{box-shadow:none;}
.faq-acc .accordion-button:focus-visible{
  outline:2px solid var(--c-accent);
  outline-offset:-4px;
}
.faq-acc .accordion-body{
  padding:0 56px 22px 22px;
  font-size:15px;
  color:var(--c-text-2);
  line-height:1.85;
}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  background-image:linear-gradient(95deg,rgba(11,33,29,.95) 0%,rgba(11,33,29,.80) 55%,rgba(18,58,51,.62) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{
  font-size:clamp(22px,2.2vw,30px);
  line-height:1.35;
  font-weight:700;
  max-width:20em;
}
.cta-band p{
  margin-top:12px;
  color:rgba(255,255,255,.82);
  font-size:15px;
  max-width:42em;
}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 相关频道 ============ */
.rel-box{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--sh-1);
}
.rel-box h3{
  font-size:18px;
  font-weight:700;
  color:var(--c-primary);
  margin-bottom:16px;
}
.rel-tags{display:flex;flex-wrap:wrap;gap:12px;}
.rel-tags a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  padding:10px 18px;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:var(--c-surface-alt);
  color:var(--c-primary);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.rel-tags a:hover{
  background:var(--c-primary);
  border-color:var(--c-primary);
  color:#fff;
  text-decoration:none;
  transform:translateY(-2px);
}
.back-home{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:20px;
  font-size:14px;
  color:var(--c-secondary);
  font-weight:600;
}
.back-home:hover{color:var(--c-accent);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-primary-dark);
  color:rgba(255,255,255,.74);
  margin-top:80px;
  padding:64px 0 0;
  font-size:14px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.3fr;
  gap:32px;
  padding-bottom:40px;
}
.foot-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.foot-brand .brand-mark{background:var(--c-accent);}
.foot-brand strong{color:#fff;font-size:17px;letter-spacing:.4px;}
.foot-desc{line-height:1.85;color:rgba(255,255,255,.66);max-width:30em;}
.foot-col h4{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
}
.foot-list{display:flex;flex-direction:column;gap:10px;}
.foot-list a,.foot-list span{color:rgba(255,255,255,.7);transition:color .2s ease;}
.foot-list a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px;}
.foot-contact{color:rgba(255,255,255,.66);margin-bottom:14px;line-height:1.8;}
.foot-form label{
  display:block;
  font-size:13px;
  color:rgba(255,255,255,.7);
  margin-bottom:8px;
}
.foot-form input{
  width:100%;
  height:44px;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);
  color:#fff;
  padding:0 14px;
  font-size:14px;
  margin-bottom:12px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.foot-form input::placeholder{color:rgba(255,255,255,.45);}
.foot-form input:focus{
  outline:none;
  border-color:var(--c-accent);
  box-shadow:0 0 0 3px rgba(255,106,19,.22);
}
.foot-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 26px;
  font-size:13px;
  color:rgba(255,255,255,.6);
}
.foot-bottom a{color:rgba(255,255,255,.8);}
.foot-bottom a:hover{color:var(--c-accent);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .foot-grid{grid-template-columns:1.3fr 1fr 1fr;gap:28px;}
  .foot-col:last-child{grid-column:1 / -1;}
  .foot-form{max-width:420px;}
}
@media (max-width:991px){
  .head-search{max-width:220px;}
  .head-actions .btn-accent{display:none;}
  .main-channel{display:none;}
  .split{grid-template-columns:1fr;gap:28px;}
  .tl-points{grid-template-columns:1fr;}
  .cta-band{padding:36px;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  .site-container{padding:0 16px;}
  body{font-size:15px;line-height:1.8;}
  .head-search{display:none;}
  .nav-toggle{display:flex;}
  .drawer-search{display:block;}
  .brand-text em{font-size:9px;letter-spacing:1.2px;}
  .page-banner{min-height:0;}
  .page-banner .site-container{padding-top:40px;padding-bottom:40px;}
  .banner-facts{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:28px;}
  .fact-item b{font-size:20px;}
  .banner-actions{flex-direction:column;gap:12px;}
  .banner-actions .btn-accent,
  .banner-actions .btn-outline-light-soft{width:100%;height:48px;}
  .timeline{padding-left:26px;}
  .timeline::before{left:7px;}
  .tl-dot{left:-23px;top:24px;}
  .tl-card{padding:20px 18px;}
  .tl-card h3{font-size:18px;}
  .accordion-body{padding:0 22px 20px 22px !important;}
  .faq-acc .accordion-button{padding:18px 50px 18px 18px;font-size:16px;}
  .cta-band{padding:28px 20px;border-radius:16px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions a{width:100%;height:48px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .site-footer{padding-top:48px;margin-top:56px;}
  .rel-box{padding:22px 18px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:24px;}
}
@media (max-width:575px){
  .page-banner h1{font-size:26px;}
  .brand-text strong{font-size:16px;}
  .rel-tags a{width:100%;justify-content:center;}
}

/* roulang page: category4 */
:root{
  --c-primary:#123A33;
  --c-primary-dark:#0B211D;
  --c-primary-soft:#E7EFEC;
  --c-accent:#FF6A13;
  --c-accent-dark:#E8570A;
  --c-secondary:#2E9E86;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFEBE4;
  --c-text:#1A2422;
  --c-text-2:#5C6B67;
  --c-line:#E1DCD3;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,58,51,.06);
  --sh-2:0 8px 24px -12px rgba(18,58,51,.18);
  --sh-3:0 16px 32px -14px rgba(18,58,51,.26);
  --bs-primary:#123A33;
  --bs-body-bg:#F7F5F1;
  --bs-body-color:#1A2422;
  --bs-border-color:#E1DCD3;
  --bs-border-radius:12px;
  --bs-link-color:#123A33;
  --bs-link-hover-color:#E8570A;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-text);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-accent);}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-text);}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.site-container{max-width:1320px;}}
@media (max-width:767px){.site-container{padding:0 16px;}}

/* ============ 头部 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 6px 18px rgba(18,58,51,.10);}
.head-top-inner{display:flex;align-items:center;gap:20px;height:56px;}
.site-header.is-stuck .head-top-inner{height:50px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),#1D5A4E);
  color:#fff;font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;font-weight:700;color:var(--c-primary);letter-spacing:.3px;}
.brand-text em{font-style:normal;font-size:10px;letter-spacing:1.4px;color:var(--c-text-2);text-transform:uppercase;}
.head-search{
  flex:1;max-width:300px;position:relative;
  display:flex;align-items:center;
}
.head-search i{position:absolute;left:12px;color:var(--c-text-2);font-size:14px;}
.head-search input{
  width:100%;height:38px;border:1px solid var(--c-line);
  border-radius:var(--r-btn);background:#fff;
  padding:0 12px 0 34px;font-size:14px;color:var(--c-text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.head-search input::placeholder{color:#9AA8A4;}
.head-search input:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(255,106,19,.14);}
.head-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.hamburger{
  display:none;width:40px;height:40px;border:1px solid var(--c-line);
  border-radius:var(--r-btn);background:#fff;color:var(--c-primary);
  font-size:19px;align-items:center;justify-content:center;
}
.hot-strip{
  display:flex;align-items:center;gap:10px;
  padding:0 0 10px;overflow-x:auto;scrollbar-width:none;
}
.hot-strip::-webkit-scrollbar{display:none;}
.hot-strip .hot-label{font-size:12px;color:var(--c-text-2);white-space:nowrap;flex-shrink:0;}
.hot-tag{
  flex-shrink:0;font-size:12px;line-height:1.4;padding:4px 10px;
  border-radius:var(--r-pill);background:var(--c-primary-soft);
  color:#1F7A66;white-space:nowrap;transition:.2s ease;
}
.hot-tag:hover{background:var(--c-accent);color:#fff;}
.site-header.is-stuck .hot-strip{display:none;}

.channel-bar{border-top:1px solid var(--c-line);background:rgba(255,255,255,.75);}
.channel-inner{display:flex;align-items:center;gap:28px;height:48px;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;flex-shrink:0;font-size:15px;font-weight:500;
  color:var(--c-text-2);padding:4px 0;transition:.2s ease;
}
.channel-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--c-accent);border-radius:2px;transform:scaleX(0);
  transition:transform .22s ease;
}
.channel-link:hover{color:var(--c-primary);}
.channel-link:hover::after{transform:scaleX(1);}
.channel-link.is-active{color:var(--c-primary);font-weight:700;}
.channel-link.is-active::after{transform:scaleX(1);}
.site-header.is-stuck .channel-link{font-size:14px;}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,33,29,.45);
  opacity:0;visibility:hidden;transition:.25s ease;z-index:1040;
}
.drawer-mask.show{opacity:1;visibility:visible;}
.site-drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:340px;
  background:#fff;z-index:1050;border-radius:20px 0 0 20px;
  transform:translateX(100%);transition:transform .28s ease;
  padding:20px 20px 32px;overflow-y:auto;
}
.site-drawer.show{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head strong{font-size:16px;color:var(--c-primary);}
.drawer-close{
  width:36px;height:36px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;color:var(--c-primary);font-size:16px;
}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:20px;}
.drawer-nav a{
  padding:12px 14px;border-radius:10px;font-size:15px;
  color:var(--c-text);border:1px solid transparent;
}
.drawer-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.drawer-nav a.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:700;border-color:#CFE2DC;}
.drawer-search{position:relative;margin-bottom:20px;}
.drawer-search i{position:absolute;left:12px;top:13px;color:var(--c-text-2);font-size:14px;}
.drawer-search input{width:100%;height:44px;border:1px solid var(--c-line);border-radius:var(--r-btn);padding:0 12px 0 34px;font-size:14px;}
.drawer-hot{display:flex;flex-wrap:wrap;gap:8px;}

/* ============ 按钮 ============ */
.btn-accent,.btn-ghost,.btn-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .22s ease,background .22s ease,box-shadow .22s ease,color .22s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn-accent{background:var(--c-accent);color:#fff;border-color:var(--c-accent);}
.btn-accent:hover{background:var(--c-accent-dark);border-color:var(--c-accent-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-accent:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-secondary);}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-light{background:#fff;color:var(--c-primary);border-color:#fff;}
.btn-light:hover{background:var(--c-primary-soft);color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}

/* ============ 通用板块 ============ */
.section{padding:80px 0;}
.section-alt{background:var(--c-surface-alt);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap;}
.sec-title{font-size:clamp(24px,2.4vw,32px);line-height:1.32;position:relative;padding-left:16px;}
.sec-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--c-accent);
}
.sec-sub{margin-top:8px;font-size:15px;color:var(--c-text-2);padding-left:16px;}
.sec-more{font-size:14px;color:var(--c-accent);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.sec-more:hover{color:var(--c-accent-dark);text-decoration:underline;text-underline-offset:3px;}

.badge-soft,.badge-hot,.badge-line{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12px;line-height:1.4;padding:4px 10px;border-radius:var(--r-pill);
  font-weight:600;
}
.badge-soft{background:#E6F4F0;color:#1F7A66;}
.badge-hot{background:var(--c-accent);color:#fff;}
.badge-line{background:#fff;color:var(--c-text-2);border:1px solid var(--c-line);}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  min-height:340px;
  display:flex;align-items:center;
  background-image:linear-gradient(90deg,rgba(18,58,51,.90),rgba(18,58,51,.48)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  color:#fff;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;opacity:.35;pointer-events:none;
}
.page-hero .site-container{position:relative;z-index:2;padding-top:56px;padding-bottom:56px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.76);margin-bottom:18px;}
.crumb a{color:rgba(255,255,255,.86);}
.crumb a:hover{color:#fff;}
.crumb .sep{opacity:.6;}
.crumb .current{color:#fff;font-weight:600;}
.page-hero h1{
  font-size:clamp(30px,3.4vw,46px);line-height:1.28;color:#fff;
  max-width:760px;
}
.page-hero .hero-sub{
  margin-top:16px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.88);
  max-width:640px;
}
.hero-btns{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap;}
.hero-tags{display:flex;gap:10px;margin-top:26px;flex-wrap:wrap;}
.hero-tags span{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;padding:6px 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.24);
}

/* ============ 数据条 ============ */
.stat-bar{background:var(--c-surface);border-bottom:1px solid var(--c-line);}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat-item{
  padding:26px 20px;text-align:center;
  border-right:1px solid var(--c-line);
}
.stat-item:last-child{border-right:0;}
.stat-num{font-size:26px;font-weight:700;color:var(--c-primary);line-height:1.2;}
.stat-num small{font-size:14px;font-weight:600;margin-left:2px;color:var(--c-secondary);}
.stat-label{font-size:13px;color:var(--c-text-2);margin-top:6px;}

/* ============ 瀑布 + 右栏 ============ */
.waterfall-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:32px;align-items:start;
}
.pf-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;align-items:start;
}
.pf-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease;
}
.pf-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.pf-thumb{overflow:hidden;background:var(--c-primary-soft);}
.pf-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease;}
.pf-card:hover .pf-thumb img{transform:scale(1.03);}
.pf-thumb.h-lg{height:250px;}
.pf-thumb.h-md{height:196px;}
.pf-thumb.h-sm{height:150px;}
.pf-body{padding:18px;}
.pf-body h3{font-size:17px;line-height:1.4;font-weight:600;margin:10px 0 8px;}
.pf-body p{font-size:14px;line-height:1.75;color:var(--c-text-2);margin:0 0 14px;}
.pf-meta{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px dashed var(--c-line);
  font-size:13px;color:var(--c-text-2);
}
.pf-meta a{font-size:13px;font-weight:600;color:var(--c-accent);display:inline-flex;align-items:center;gap:5px;}
.pf-meta a:hover{color:var(--c-accent-dark);}

/* 右栏 */
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:22px;margin-bottom:20px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:17px;margin-bottom:6px;}
.side-card .side-note{font-size:13px;color:var(--c-text-2);margin-bottom:16px;}
.side-sticky{position:sticky;top:120px;}

/* FAQ */
.faq-acc .accordion-item{
  border:1px solid var(--c-line);border-radius:14px;background:#fff;
  margin-bottom:12px;overflow:hidden;
}
.faq-acc .accordion-button{
  font-size:15px;font-weight:600;color:var(--c-text);background:#fff;
  padding:15px 16px;box-shadow:none;display:flex;align-items:center;gap:10px;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--c-primary);background:var(--c-primary-soft);
  box-shadow:inset 3px 0 0 var(--c-accent);
}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq-acc .accordion-button::after{display:none;}
.faq-acc .acc-icon{margin-left:auto;font-size:13px;color:var(--c-secondary);transition:transform .25s ease;}
.faq-acc .accordion-button:not(.collapsed) .acc-icon{transform:rotate(180deg);color:var(--c-accent);}
.faq-acc .accordion-body{font-size:14px;line-height:1.8;color:var(--c-text-2);padding:0 18px 18px;}

/* 表单 */
.form-field{margin-bottom:16px;}
.form-field label{display:block;font-size:14px;font-weight:600;margin-bottom:6px;color:var(--c-text);}
.form-field input,.form-field textarea,.form-field select{
  width:100%;height:44px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  padding:0 12px;font-size:14px;color:var(--c-text);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-field textarea{height:96px;padding:10px 12px;resize:vertical;line-height:1.7;}
.form-field input:focus,.form-field textarea:focus,.form-field select:focus{
  outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(255,106,19,.14);
}
.form-tip{font-size:12px;color:var(--c-text-2);margin-top:6px;}

/* 流程 */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.flow-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px 20px;position:relative;transition:transform .22s ease,box-shadow .22s ease;
}
.flow-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.flow-num{
  font-size:14px;font-weight:700;color:var(--c-accent);
  font-variant-numeric:tabular-nums;letter-spacing:1px;
}
.flow-card h3{font-size:17px;margin:10px 0 8px;}
.flow-card p{font-size:14px;color:var(--c-text-2);line-height:1.75;margin:0;}

/* CTA 条 */
.cta-strip{
  position:relative;overflow:hidden;
  background-image:linear-gradient(90deg,rgba(11,33,29,.94),rgba(18,58,51,.72)),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  border-radius:20px;padding:40px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-strip h2{font-size:clamp(22px,2.2vw,28px);color:#fff;line-height:1.35;}
.cta-strip p{font-size:14px;color:rgba(255,255,255,.82);margin:8px 0 0;}

/* 相关频道 */
.rel-links{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px;}
.rel-links a{
  font-size:14px;padding:9px 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);color:var(--c-text);
  transition:.2s ease;font-weight:500;
}
.rel-links a:hover{border-color:var(--c-accent);color:var(--c-accent);transform:translateY(-2px);}
.rel-links a.is-current{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.back-home{display:inline-flex;align-items:center;gap:6px;margin-top:22px;font-size:14px;color:var(--c-text-2);}
.back-home:hover{color:var(--c-accent);}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-primary-dark);color:#C9D6D2;padding:64px 0 0;margin-top:0;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px;}
.foot-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-brand .brand-mark{width:32px;height:32px;font-size:16px;background:linear-gradient(135deg,#2E9E86,#123A33);}
.foot-brand strong{font-size:17px;color:#fff;}
.foot-desc{font-size:13px;line-height:1.8;color:#9DB2AD;margin:0;}
.foot-list{display:flex;flex-direction:column;gap:10px;}
.foot-list a,.foot-list span{font-size:14px;color:#C9D6D2;}
.foot-list a:hover{color:var(--c-accent);}
.foot-contact{font-size:13px;line-height:1.8;color:#9DB2AD;margin-bottom:14px;}
.foot-form label{display:block;font-size:13px;margin-bottom:6px;color:#C9D6D2;}
.foot-form input{
  width:100%;height:42px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:#fff;padding:0 12px;font-size:14px;margin-bottom:12px;
}
.foot-form input::placeholder{color:#7E938E;}
.foot-form input:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(255,106,19,.18);}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;
  gap:16px;font-size:13px;color:#8FA49F;flex-wrap:wrap;
}
.foot-bottom a{color:#C9D6D2;}
.foot-bottom a:hover{color:var(--c-accent);}

.to-top{
  position:fixed;right:24px;bottom:28px;width:44px;height:44px;border-radius:50%;
  background:var(--c-primary);color:#fff;border:0;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);opacity:0;visibility:hidden;transition:.25s ease;z-index:1020;
}
.to-top.show{opacity:1;visibility:visible;}
.to-top:hover{background:var(--c-accent);}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .waterfall-layout{grid-template-columns:minmax(0,1fr) 300px;gap:24px;}
}
@media (max-width:991px){
  .head-search{max-width:200px;}
  .hamburger{display:flex;}
  .channel-bar{display:none;}
  .waterfall-layout{grid-template-columns:1fr;}
  .side-sticky{position:static;}
  .pf-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
  .foot-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  .section{padding:48px 0;}
  .site-header.is-stuck .head-top-inner{height:56px;}
  .head-search{display:none;}
  .page-hero{min-height:auto;}
  .page-hero .site-container{padding-top:40px;padding-bottom:40px;}
  .page-hero h1{font-size:26px;}
  .page-hero .hero-sub{font-size:15px;line-height:1.8;}
  .hero-btns{gap:10px;}
  .hero-btns .btn-accent,.hero-btns .btn-ghost{flex:1 1 100%;height:48px;}
  .stat-grid{grid-template-columns:1fr 1fr;}
  .stat-item{border-bottom:1px solid var(--c-line);}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(3),.stat-item:nth-child(4){border-bottom:0;}
  .pf-grid{grid-template-columns:1fr;}
  .flow-grid{grid-template-columns:1fr;}
  .cta-strip{padding:28px 22px;border-radius:16px;}
  .cta-strip .btn-light{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .footer-col{}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{width:40px;height:40px;right:16px;bottom:20px;}
}
@media (max-width:520px){
  .brand-text em{display:none;}
  .brand-text strong{font-size:16px;}
}