/* roulang page: index */
/* ==================== 设计变量 ==================== */
:root{
  --c-primary-700:#0F3E6B;
  --c-primary-600:#14538F;
  --c-primary-500:#1C6BB0;
  --c-primary-300:#7FB2DB;
  --c-primary-050:#EEF5FB;
  --c-accent-500:#0FA3A0;
  --c-accent-100:#E2F4F3;
  --c-bg:#F4F8FC;
  --c-surface:#FFFFFF;
  --c-line:#E2EAF3;
  --c-text:#0E1B2B;
  --c-text-2:#55637A;
  --c-text-3:#8A97A8;
  --c-track:#6B7C93;
  --c-input:#F7FAFD;
  --sh-1:0 2px 8px rgba(14,43,74,.05);
  --sh-2:0 10px 28px rgba(14,43,74,.08);
  --sh-3:0 16px 40px rgba(14,43,74,.12);
  --focus-ring:0 0 0 3px rgba(28,107,176,.18);
  --r-card:16px;
  --r-lg:20px;
  --r-img:12px;
  --r-btn:12px;
  --r-input:10px;
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

/* ==================== 基础重置 ==================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
button{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
::selection{background:var(--c-primary-300);color:#fff;}

/* ==================== 容器 ==================== */
.site-container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1400px){
  .site-container{max-width:1320px;}
}

/* ==================== 头部导航 ==================== */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.site-nav{
  height:72px;
  display:flex;
  align-items:center;
  gap:20px;
  padding:0;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--c-primary-600);
  color:#fff;display:grid;place-items:center;
  font-size:13px;font-weight:700;letter-spacing:.6px;
}
.brand-text{
  font-size:18px;font-weight:700;letter-spacing:.3px;
  color:var(--c-text);line-height:1.2;
}
.brand-sub{
  display:block;font-size:11px;font-weight:500;
  color:var(--c-text-3);letter-spacing:.8px;
}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-list .nav-link{
  position:relative;
  display:block;
  font-size:15px;
  font-weight:500;
  color:var(--c-text-2);
  padding:10px 14px;
  border-radius:10px;
  transition:color .18s ease,background .18s ease;
}
.nav-list .nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;border-radius:2px;
  background:var(--c-primary-500);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.nav-list .nav-link:hover{color:var(--c-primary-600);}
.nav-list .nav-link:hover::after{transform:scaleX(1);}
.nav-list .nav-link.active{color:var(--c-primary-600);font-weight:600;}
.nav-list .nav-link.active::after{transform:scaleX(1);}
.nav-list .nav-link:focus-visible{outline:none;box-shadow:var(--focus-ring);}

.nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-link-soft{
  font-size:14px;font-weight:500;color:var(--c-text-3);
  padding:8px 4px;border-bottom:1px dashed transparent;
  transition:color .18s ease,border-color .18s ease;
}
.nav-link-soft:hover{color:var(--c-primary-600);border-color:var(--c-primary-300);}
.nav-burger{
  margin-left:auto;
  width:44px;height:44px;
  border:1px solid var(--c-line);
  border-radius:12px;
  background:var(--c-surface);
  display:flex;flex-direction:column;
  align-items:center;justify-content:center;
  gap:4px;
  padding:0;
}
.nav-burger span{
  display:block;width:18px;height:2px;border-radius:2px;
  background:var(--c-text-2);transition:.2s ease;
}
.nav-burger:focus{box-shadow:var(--focus-ring);outline:none;}

/* ==================== 按钮 ==================== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  text-align:center;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.btn-md{height:40px;padding:0 20px;font-size:14px;}
.btn-sm{height:32px;padding:0 14px;font-size:13px;}
.btn-solid{background:var(--c-primary-600);color:#fff;box-shadow:var(--sh-1);}
.btn-solid:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-solid:active{transform:translateY(0);}
.btn-outline{background:var(--c-surface);color:var(--c-primary-600);border-color:var(--c-primary-300);}
.btn-outline:hover{background:var(--c-primary-050);color:var(--c-primary-700);border-color:var(--c-primary-500);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-outline:active{transform:translateY(0);}
.btn-soft{background:var(--c-primary-050);color:var(--c-primary-600);}
.btn-soft:hover{background:#E2EEF9;color:var(--c-primary-700);transform:translateY(-1px);}
.btn-white{background:#fff;color:var(--c-primary-700);}
.btn-white:hover{background:#EAF2FA;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-1px);}
.btn:focus-visible{outline:none;box-shadow:var(--focus-ring);}
.btn-block{width:100%;}
.btn-nav{height:42px;padding:0 22px;font-size:15px;}

/* ==================== 通用文本 ==================== */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.4px;
  color:var(--c-primary-600);
  background:var(--c-primary-050);
  border-radius:999px;
  padding:6px 14px;
}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary-600);
}
.text-link i{font-size:12px;transition:transform .18s ease;}
.text-link:hover{color:var(--c-primary-700);}
.text-link:hover i{transform:translateX(3px);}
.section{padding:96px 0;}
.section-alt{background:var(--c-surface);}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head h2{
  font-size:30px;line-height:1.35;font-weight:700;
  letter-spacing:0;margin-bottom:12px;
}
.section-head p{font-size:16px;color:var(--c-text-2);line-height:1.75;}
.section-head-split{
  max-width:none;
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;flex-wrap:wrap;
}
.section-head-split > div{max-width:720px;}

/* ==================== Hero ==================== */
.hero{
  position:relative;
  padding:80px 0 88px;
  background:
    radial-gradient(900px 420px at 92% -10%, rgba(28,107,176,.10), transparent 62%),
    linear-gradient(180deg,#F8FBFE 0%,var(--c-bg) 100%);
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--c-line);
}
.hero-title{
  font-size:40px;
  line-height:1.28;
  font-weight:700;
  letter-spacing:0;
  margin:20px 0 18px;
  color:var(--c-text);
}
.hero-lead{
  font-size:17px;
  line-height:1.8;
  color:var(--c-text-2);
  max-width:520px;
  margin-bottom:30px;
}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px;}
.hero-metrics{
  display:flex;gap:40px;flex-wrap:wrap;
  padding-top:26px;border-top:1px solid var(--c-line);
}
.metric strong{
  display:block;
  font-size:28px;font-weight:700;line-height:1.2;
  color:var(--c-primary-700);
  letter-spacing:-.2px;
}
.metric span{font-size:13px;color:var(--c-text-3);}
.hero-visual{position:relative;padding-bottom:26px;}
.hero-visual img{
  width:100%;
  aspect-ratio:4 / 3;
  object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-2);
}
.hero-float{
  position:absolute;
  left:24px;right:24px;bottom:0;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-2);
  padding:16px 20px;
  display:flex;align-items:center;gap:14px;
}
.hero-float .dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--c-accent-500);
  box-shadow:0 0 0 4px var(--c-accent-100);
  flex-shrink:0;
}
.hero-float strong{display:block;font-size:15px;font-weight:600;}
.hero-float span{font-size:13px;color:var(--c-text-3);}

/* ==================== 核心服务 ==================== */
.feature-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  height:100%;
  display:flex;flex-direction:column;
  transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;
}
.feature-card:hover{box-shadow:var(--sh-3);border-color:var(--c-primary-300);transform:translateY(-2px);}
.feature-card img{
  width:100%;aspect-ratio:16 / 10;object-fit:cover;
}
.feature-body{padding:28px;display:flex;flex-direction:column;gap:12px;flex:1;}
.feature-body h3{font-size:20px;font-weight:600;line-height:1.4;}
.feature-body p{font-size:15px;color:var(--c-text-2);line-height:1.75;}
.tag{
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:600;
  color:var(--c-primary-600);
  background:var(--c-primary-050);
  border-radius:999px;
  padding:4px 12px;
  width:max-content;
}
.tag-accent{color:#0B7C7A;background:var(--c-accent-100);}

.num-list{display:flex;flex-direction:column;gap:16px;height:100%;}
.num-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:24px 28px;
  display:flex;gap:22px;
  box-shadow:var(--sh-1);
  transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;
  flex:1;
}
.num-item:hover{box-shadow:var(--sh-2);border-color:var(--c-primary-300);transform:translateY(-2px);}
.num-item .num{
  font-size:20px;font-weight:600;color:var(--c-primary-500);
  line-height:1.5;flex-shrink:0;letter-spacing:.5px;
}
.num-item h3{font-size:18px;font-weight:600;line-height:1.45;margin-bottom:6px;}
.num-item p{font-size:14px;color:var(--c-text-2);line-height:1.7;}

/* ==================== 数据信任条 ==================== */
.trust-strip{
  background:var(--c-primary-050);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  padding:48px 0;
}
.trust-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
}
.trust-cell strong{
  display:block;
  font-size:32px;font-weight:600;line-height:1.2;
  color:var(--c-primary-700);
  letter-spacing:-.5px;
}
.trust-cell span{display:block;font-size:13px;color:var(--c-text-2);margin-top:6px;line-height:1.6;}

/* ==================== 权益对比表 ==================== */
.cmp-desktop{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.cmp-table{width:100%;border-collapse:collapse;}
.cmp-table thead th{
  position:sticky;top:0;z-index:2;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  padding:24px 20px;
  text-align:center;
  vertical-align:bottom;
}
.cmp-table thead th:first-child{text-align:left;width:26%;}
.cmp-tier-name{font-size:17px;font-weight:700;display:block;}
.cmp-tier-desc{font-size:13px;color:var(--c-text-3);font-weight:400;display:block;margin-top:4px;}
.cmp-table th.is-featured,
.cmp-table td.is-featured{background:var(--c-accent-100);}
.cmp-table th.is-featured{position:relative;}
.cmp-badge{
  display:inline-flex;align-items:center;gap:4px;
  font-size:12px;font-weight:600;color:#fff;
  background:var(--c-accent-500);
  border-radius:999px;
  padding:3px 10px;
  margin-bottom:8px;
}
.cmp-table tbody th{
  text-align:left;
  font-size:15px;font-weight:600;color:var(--c-text);
  padding:0 20px;
  height:56px;
  border-bottom:1px solid var(--c-line);
}
.cmp-table tbody tr:nth-child(even){background:var(--c-bg);}
.cmp-table tbody tr:nth-child(even) td.is-featured,
.cmp-table tbody tr:nth-child(even) th.is-featured{background:#DCF0EF;}
.cmp-table tbody td{
  text-align:center;
  padding:0 20px;
  height:56px;
  border-bottom:1px solid var(--c-line);
  font-size:14px;
  color:var(--c-text-2);
  vertical-align:middle;
}
.cmp-table tbody tr:last-child th,
.cmp-table tbody tr:last-child td{border-bottom:0;}
.cmp-yes{color:var(--c-accent-500);font-size:16px;}
.cmp-no{color:#C3CEDA;font-size:16px;}
.cmp-table tbody td .btn{margin:8px 0;}

.cmp-mobile{display:none;}
.cmp-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:24px 20px;
  margin-bottom:16px;
}
.cmp-card.is-featured{border-color:var(--c-accent-500);background:#F5FBFB;}
.cmp-card h3{font-size:18px;font-weight:700;margin-bottom:4px;}
.cmp-card .cmp-card-desc{font-size:13px;color:var(--c-text-3);margin-bottom:16px;}
.cmp-card ul{display:flex;flex-direction:column;gap:10px;margin-bottom:18px;}
.cmp-card li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--c-text-2);line-height:1.7;
  padding-bottom:10px;border-bottom:1px dashed var(--c-line);
}
.cmp-card li:last-child{border-bottom:0;padding-bottom:0;}
.cmp-card li i{margin-top:5px;flex-shrink:0;}

/* ==================== 等级亮点 ==================== */
.level-card{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:32px 28px 28px;
  height:100%;
  display:flex;flex-direction:column;gap:14px;
  overflow:hidden;
  transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;
}
.level-card::before{
  content:"";
  position:absolute;top:0;left:0;
  width:8px;height:100%;
  background:var(--level-color,var(--c-primary-500));
}
.level-card:hover{box-shadow:var(--sh-3);transform:translateY(-2px);border-color:var(--c-primary-300);}
.level-badge{
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:600;
  border-radius:999px;
  padding:4px 12px;
  width:max-content;
  color:#fff;
  background:var(--level-color,var(--c-primary-500));
}
.level-card h3{font-size:20px;font-weight:600;}
.level-card .level-desc{font-size:14px;color:var(--c-text-2);line-height:1.7;}
.level-points{display:flex;flex-direction:column;gap:10px;margin-top:2px;}
.level-points li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--c-text-2);line-height:1.7;
}
.level-points li i{color:var(--c-accent-500);font-size:13px;margin-top:5px;flex-shrink:0;}
.level-card .text-link{margin-top:auto;padding-top:8px;}

/* ==================== 专属内容预览 ==================== */
.content-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  height:100%;
  display:flex;flex-direction:column;
  transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;
}
.content-card:hover{box-shadow:var(--sh-3);border-color:var(--c-primary-300);transform:translateY(-2px);}
.content-cover{position:relative;}
.content-cover img{width:100%;aspect-ratio:16 / 9;object-fit:cover;}
.content-cover .lock-mask{
  position:absolute;inset:0;
  background:rgba(14,27,43,.55);
  display:flex;align-items:flex-start;justify-content:flex-end;
  padding:14px;
}
.content-cover .lock-mask i{color:#fff;font-size:16px;}
.content-cover .lock-mask span{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  color:#fff;font-size:13px;font-weight:600;letter-spacing:.5px;
}
.content-level{
  position:absolute;top:12px;right:12px;
  font-size:12px;font-weight:600;
  background:rgba(255,255,255,.94);
  color:var(--c-primary-700);
  border-radius:999px;
  padding:3px 10px;
}
.content-level.is-accent{color:#0B7C7A;background:var(--c-accent-100);}
.content-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.content-body h3{font-size:17px;font-weight:600;line-height:1.5;}
.content-body p{font-size:14px;color:var(--c-text-2);line-height:1.7;}
.content-body .text-link{margin-top:auto;padding-top:6px;}

/* ==================== FAQ ==================== */
.faq-wrap{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:12px 32px;
}
.faq-item{
  position:relative;
  border-bottom:1px solid var(--c-line);
}
.faq-item:last-child{border-bottom:0;}
.faq-item::before{
  content:"";
  position:absolute;left:-32px;top:22px;bottom:22px;
  width:3px;border-radius:3px;
  background:var(--c-primary-500);
  opacity:0;
  transition:opacity .2s ease;
}
.faq-item:has(.faq-btn:not(.collapsed))::before{opacity:1;}
.faq-head{margin:0;}
.faq-btn{
  width:100%;
  display:flex;align-items:center;gap:16px;
  background:none;border:0;
  padding:22px 0;
  text-align:left;
  cursor:pointer;
}
.faq-btn:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:8px;}
.faq-num{
  font-size:14px;font-weight:600;color:var(--c-text-3);
  flex-shrink:0;letter-spacing:.5px;
}
.faq-q{
  font-size:17px;font-weight:600;color:var(--c-text);
  line-height:1.6;flex:1;
  transition:color .18s ease;
}
.faq-btn:hover .faq-q{color:var(--c-primary-600);}
.faq-icon{
  flex-shrink:0;
  font-size:14px;color:var(--c-primary-500);
  transition:transform .2s ease;
}
.faq-btn:not(.collapsed) .faq-icon{transform:rotate(45deg);}
.faq-body{
  padding:0 0 24px 30px;
  font-size:15px;color:var(--c-text-2);line-height:1.8;
  max-width:820px;
}

/* ==================== 开通 CTA ==================== */
.cta-band{
  background:var(--c-primary-700);
  border-radius:var(--r-lg);
  padding:56px 48px;
  color:#fff;
  display:flex;align-items:center;justify-content:space-between;
  gap:40px;flex-wrap:wrap;
}
.cta-band h2{
  font-size:30px;font-weight:700;line-height:1.35;
  margin-bottom:14px;color:#fff;
}
.cta-band p{
  font-size:15px;line-height:1.8;
  color:rgba(255,255,255,.78);
  max-width:620px;margin-bottom:8px;
}
.cta-note{font-size:13px;color:rgba(255,255,255,.6);}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0;}

/* ==================== 资讯列表 ==================== */
.filter-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:32px;}
.filter-tab{
  font-size:13px;font-weight:600;
  padding:7px 16px;border-radius:999px;
  background:var(--c-primary-050);
  color:var(--c-primary-600);
  border:1px solid transparent;
  transition:.18s ease;
}
.filter-tab:hover{background:#E2EEF9;}
.filter-tab.active{background:var(--c-primary-600);color:#fff;border-color:var(--c-primary-600);}
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.news-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;
}
.news-card:hover{box-shadow:var(--sh-3);border-color:var(--c-primary-300);transform:translateY(-2px);}
.news-cover img{width:100%;aspect-ratio:16 / 9;object-fit:cover;}
.news-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.badge-cat{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;
  color:var(--c-primary-600);
  background:var(--c-primary-050);
  border-radius:999px;
  padding:3px 11px;
  width:max-content;
}
.news-body h3{font-size:18px;font-weight:600;line-height:1.55;}
.news-body h3 a:hover{color:var(--c-primary-600);}
.news-body p{
  font-size:14px;color:var(--c-text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:12px;
  border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);
  display:flex;align-items:center;gap:14px;
}
.empty-state{
  grid-column:1 / -1;
  border:1px dashed var(--c-line);
  border-radius:var(--r-card);
  background:var(--c-surface);
  text-align:center;
  padding:56px 24px;
}
.empty-state i{font-size:28px;color:var(--c-primary-300);display:block;margin-bottom:14px;}
.empty-state p{font-size:15px;color:var(--c-text-3);margin-bottom:20px;}

/* ==================== 页脚 ==================== */
.site-footer{
  background:var(--c-bg);
  border-top:1px solid var(--c-line);
  padding:64px 0 0;
  margin-top:8px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-primary-600);}
.footer-about{font-size:14px;color:var(--c-text-2);line-height:1.8;max-width:340px;}
.footer-title{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--c-text);}
.footer-list{display:flex;flex-direction:column;gap:12px;}
.footer-list a{font-size:14px;color:var(--c-text-2);}
.footer-list a:hover{color:var(--c-primary-600);}
.footer-contact li{
  font-size:14px;color:var(--c-text-2);
  display:flex;align-items:flex-start;gap:10px;
  margin-bottom:12px;line-height:1.7;
}
.footer-contact i{color:var(--c-primary-500);margin-top:5px;font-size:13px;flex-shrink:0;}
.footer-bottom{
  border-top:1px solid var(--c-line);
  padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--c-text-3);}
.footer-bottom .footer-key{
  font-size:13px;font-weight:600;color:var(--c-text-2);letter-spacing:.3px;
}

/* ==================== 响应式 ==================== */
@media (max-width:1199px){
  .hero-title{font-size:36px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
}
@media (max-width:991px){
  .site-container{padding:0 20px;}
  .section{padding:72px 0;}
  .hero{padding:56px 0 64px;}
  .hero-title{font-size:32px;}
  .hero-visual{margin-top:36px;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;padding:8px 0;}
  .nav-list .nav-link{padding:14px 4px;font-size:15px;border-bottom:1px solid var(--c-line);border-radius:0;min-height:44px;display:flex;align-items:center;}
  .nav-list .nav-link::after{display:none;}
  .nav-list .nav-link.active{color:var(--c-primary-600);}
  .nav-panel{
    background:var(--c-surface);
    border-top:1px solid var(--c-line);
    border-bottom:1px solid var(--c-line);
    margin:0 -20px;
    padding:0 20px 20px;
    box-shadow:var(--sh-1);
  }
  .nav-actions{flex-direction:column;align-items:stretch;gap:12px;margin:16px 0 0;}
  .nav-link-soft{text-align:center;padding:10px;}
  .btn-nav{width:100%;height:46px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .trust-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:44px 32px;}
  .cta-band h2{font-size:26px;}
  .faq-wrap{padding:8px 24px;}
  .faq-item::before{left:-24px;}
}
@media (max-width:767px){
  .cmp-desktop{display:none;}
  .cmp-mobile{display:block;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:24px;}
  .hero-title{font-size:28px;line-height:1.34;}
  .hero-lead{font-size:16px;}
  .hero-cta .btn{flex:1 1 auto;}
  .hero-metrics{gap:24px;}
  .metric{min-width:calc(50% - 12px);}
  .metric strong{font-size:24px;}
  .feature-body,.num-item{padding:20px;}
  .level-card{padding:24px 20px;}
  .cta-band{padding:36px 24px;border-radius:var(--r-card);}
  .cta-band h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575px){
  .site-container{padding:0 16px;}
  .nav-panel{margin:0 -16px;padding:0 16px 20px;}
  .news-grid{grid-template-columns:1fr;}
  .trust-grid{grid-template-columns:1fr;gap:22px;}
  .hero-metrics{gap:18px;}
  .metric{min-width:100%;}
  .faq-wrap{padding:4px 18px;}
  .faq-item::before{left:-18px;}
  .faq-body{padding-left:0;}
  .faq-q{font-size:16px;}
  .section-head-split{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --c-primary-700:#0F3E6B;
  --c-primary-600:#14538F;
  --c-primary-500:#1C6BB0;
  --c-primary-300:#7FB2DB;
  --c-primary-050:#EEF5FB;
  --c-accent-500:#0FA3A0;
  --c-accent-100:#E2F4F3;
  --c-bg:#F4F8FC;
  --c-surface:#FFFFFF;
  --c-line:#E2EAF3;
  --c-text:#0E1B2B;
  --c-text-2:#55637A;
  --c-text-3:#8A97A8;
  --c-grayblue:#6B7C93;
  --sh-1:0 2px 8px rgba(14,43,74,.05);
  --sh-2:0 10px 28px rgba(14,43,74,.08);
  --sh-3:0 16px 40px rgba(14,43,74,.12);
  --r-card:16px;
  --r-block:20px;
  --r-img:12px;
  --r-btn:12px;
  --r-input:10px;
  --sp-1:8px;--sp-2:12px;--sp-3:16px;--sp-4:24px;--sp-5:32px;--sp-6:48px;--sp-7:64px;--sp-8:96px;
  --font:"-apple-system","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-500);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-text);letter-spacing:0;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(28,107,176,.18);border-radius:8px;}
.site-container{width:100%;max-width:1180px;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:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-1);}
.site-nav{display:flex;align-items:center;min-height:72px;}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 36px;
  background:var(--c-primary-600);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;letter-spacing:.5px;
}
.brand-text{
  display:flex;flex-direction:column;line-height:1.15;
  font-size:17px;font-weight:700;color:var(--c-text);
}
.brand-sub{font-size:11px;font-weight:400;color:var(--c-text-3);letter-spacing:.3px;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-list .nav-link{
  position:relative;padding:10px 14px;font-size:15px;font-weight:500;color:var(--c-text-2);
  border-radius:10px;
}
.nav-list .nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--c-primary-500);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-list .nav-link:hover{color:var(--c-primary-600);}
.nav-list .nav-link:hover::after{transform:scaleX(1);}
.nav-list .nav-link.active{color:var(--c-primary-600);font-weight:600;}
.nav-list .nav-link.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:16px;}
.nav-link-soft{font-size:14px;color:var(--c-text-2);font-weight:500;}
.nav-link-soft:hover{color:var(--c-primary-600);}
.nav-burger{
  width:44px;height:44px;border:1px solid var(--c-line);border-radius:12px;background:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:0;
}
.nav-burger span{display:block;width:18px;height:2px;background:var(--c-primary-700);border-radius:2px;}
.nav-burger:focus{box-shadow:0 0 0 3px rgba(28,107,176,.18);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:16px;font-weight:600;line-height:1;
  border-radius:var(--r-btn);border:1px solid transparent;
  padding:0 24px;height:48px;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(0);}
.btn-solid{background:var(--c-primary-600);color:#fff;box-shadow:var(--sh-1);}
.btn-solid:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-outline{background:#fff;color:var(--c-primary-600);border-color:var(--c-primary-300);}
.btn-outline:hover{background:var(--c-primary-050);color:var(--c-primary-700);border-color:var(--c-primary-500);transform:translateY(-1px);}
.btn-soft{background:var(--c-primary-050);color:var(--c-primary-600);}
.btn-soft:hover{background:#e2eefa;color:var(--c-primary-700);transform:translateY(-1px);}
.btn-md{height:40px;font-size:14px;padding:0 18px;}
.btn-sm{height:32px;font-size:13px;padding:0 14px;border-radius:10px;}
.btn-nav{height:44px;font-size:15px;padding:0 22px;}
.btn-block{width:100%;}

/* ---------- badges ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;line-height:18px;font-weight:500;
  padding:4px 12px;border-radius:999px;
  background:var(--c-primary-050);color:var(--c-primary-600);
}
.tag-accent{background:var(--c-accent-100);color:#0B7C7A;}
.tag-gray{background:#EDF1F6;color:var(--c-grayblue);}

/* ---------- page hero ---------- */
.page-hero{
  background:linear-gradient(180deg,var(--c-primary-050) 0%,#F7FAFD 100%);
  border-bottom:1px solid var(--c-line);
  padding:56px 0 64px;
}
.breadcrumb-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:14px;color:var(--c-text-3);margin-bottom:20px;
}
.breadcrumb-row a{color:var(--c-text-2);}
.breadcrumb-row a:hover{color:var(--c-primary-600);}
.breadcrumb-row .sep{color:#C4CFDC;}
.breadcrumb-row .current{color:var(--c-text-3);}
.page-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
.page-hero h1{font-size:40px;line-height:1.2;margin-bottom:16px;}
.page-hero h1 .h1-key{color:var(--c-primary-600);}
.hero-lead{font-size:17px;color:var(--c-text-2);max-width:560px;margin-bottom:14px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.page-hero-media{position:relative;}
.page-hero-media img{
  width:100%;height:320px;object-fit:cover;border-radius:var(--r-block);
  border:1px solid var(--c-line);box-shadow:var(--sh-2);
}
.media-note{
  position:absolute;left:24px;right:24px;bottom:-22px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-2);padding:14px 18px;
  display:flex;align-items:center;gap:12px;
}
.media-note i{color:var(--c-accent-500);font-size:18px;}
.media-note strong{display:block;font-size:15px;}
.media-note span{font-size:13px;color:var(--c-text-3);}

/* ---------- section base ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:1px;
  color:var(--c-accent-500);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:30px;line-height:1.3;margin-bottom:12px;}
.section-head p{color:var(--c-text-2);font-size:16px;}

/* ---------- stat strip ---------- */
.stat-strip{background:var(--c-primary-050);padding:48px 0;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat-item .num{font-size:32px;font-weight:600;color:var(--c-primary-700);line-height:1.2;}
.stat-item .num small{font-size:16px;font-weight:500;margin-left:4px;color:var(--c-primary-500);}
.stat-item .desc{font-size:13px;color:var(--c-text-2);margin-top:6px;}

/* ---------- category layout ---------- */
.cat-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:32px;align-items:start;}
.side-panel{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:24px;position:sticky;top:96px;
}
.side-title{font-size:13px;font-weight:600;color:var(--c-text-3);letter-spacing:1px;margin-bottom:14px;text-transform:uppercase;}
.side-list li+li{margin-top:4px;}
.side-link{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:10px 12px;border-radius:10px;font-size:15px;color:var(--c-text-2);font-weight:500;
  transition:background-color .18s ease,color .18s ease;
}
.side-link i{font-size:12px;color:#C4CFDC;}
.side-link:hover{background:var(--c-primary-050);color:var(--c-primary-600);}
.side-link.active{background:var(--c-primary-050);color:var(--c-primary-600);font-weight:600;}
.side-link.active i{color:var(--c-accent-500);}
.side-block{margin-top:22px;padding-top:20px;border-top:1px solid var(--c-line);}
.side-block p{font-size:13px;color:var(--c-text-3);margin-bottom:12px;}
.pill-row{display:none;gap:10px;overflow-x:auto;padding-bottom:6px;margin-bottom:24px;}
.pill{
  flex:0 0 auto;font-size:14px;font-weight:500;color:var(--c-text-2);
  background:#fff;border:1px solid var(--c-line);border-radius:999px;padding:7px 16px;
}
.pill.active{background:var(--c-primary-600);border-color:var(--c-primary-600);color:#fff;}

/* ---------- benefit cards ---------- */
.cards-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:24px;}
.cards-head h2{font-size:24px;}
.cards-head span{font-size:14px;color:var(--c-text-3);}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.benefit-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.benefit-card:hover{box-shadow:var(--sh-3);transform:translateY(-2px);border-color:var(--c-primary-300);}
.card-cover{position:relative;aspect-ratio:16/9;background:var(--c-primary-050);overflow:hidden;}
.card-cover img{width:100%;height:100%;object-fit:cover;}
.card-cover .tag{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.94);color:var(--c-primary-700);}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.card-title{font-size:18px;line-height:1.4;font-weight:600;margin-bottom:10px;}
.card-title a{color:var(--c-text);}
.card-title a:hover{color:var(--c-primary-600);}
.card-text{font-size:14px;color:var(--c-text-2);line-height:1.7;margin-bottom:16px;}
.card-list{font-size:14px;color:var(--c-text-2);margin-bottom:18px;}
.card-list li{position:relative;padding-left:20px;line-height:1.7;}
.card-list li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;
  background:var(--c-accent-500);opacity:.75;
}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:16px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-text-3);
}
.card-foot a{font-size:14px;font-weight:600;color:var(--c-primary-600);}
.card-foot a:hover{color:var(--c-primary-700);}

/* ---------- compare table ---------- */
.compare-wrap{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-block);
  box-shadow:var(--sh-1);overflow:hidden;
}
.compare-scroll{overflow-x:auto;}
table.compare{width:100%;min-width:720px;border-collapse:collapse;}
table.compare th,table.compare td{
  padding:16px 20px;font-size:15px;text-align:left;border-bottom:1px solid var(--c-line);vertical-align:middle;
}
table.compare thead th{
  position:sticky;top:0;background:#F9FBFE;font-size:14px;color:var(--c-text-2);
  font-weight:600;white-space:nowrap;z-index:2;
}
table.compare tbody tr:nth-child(even){background:var(--c-bg);}
table.compare tbody td:first-child{font-weight:600;color:var(--c-text);}
table.compare .col-flag{background:rgba(226,244,243,.55);position:relative;}
table.compare thead .col-flag{background:var(--c-accent-100);color:#0B7C7A;}
table.compare .col-flag::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-accent-500);}
table.compare .badge-rec{
  display:inline-block;margin-left:8px;font-size:11px;font-weight:600;
  background:var(--c-accent-500);color:#fff;border-radius:999px;padding:2px 8px;vertical-align:middle;
}
table.compare i.ok{color:var(--c-accent-500);}
table.compare i.no{color:#C4CFDC;}
.compare-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:#F9FBFE;
}
.compare-foot p{font-size:14px;color:var(--c-text-2);}

/* ---------- cta band ---------- */
.cta-band{background:var(--c-primary-700);color:#fff;padding:72px 0;}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;}
.cta-copy{max-width:640px;}
.cta-copy h2{color:#fff;font-size:28px;line-height:1.35;margin-bottom:12px;}
.cta-copy p{color:rgba(255,255,255,.78);font-size:15px;margin-bottom:6px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.btn-light{background:#fff;color:var(--c-primary-700);}
.btn-light:hover{background:#EDF5FC;color:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;transform:translateY(-1px);}

/* ---------- footer ---------- */
.site-footer{background:var(--c-bg);border-top:1px solid var(--c-line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-about{font-size:14px;color:var(--c-text-2);line-height:1.8;max-width:340px;}
.footer-title{font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-list li+li{margin-top:10px;}
.footer-list a{font-size:14px;color:var(--c-text-2);}
.footer-list a:hover{color:var(--c-primary-600);}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--c-text-2);}
.footer-contact li+li{margin-top:12px;}
.footer-contact i{color:var(--c-primary-500);margin-top:4px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 0;border-top:1px solid var(--c-line);
}
.footer-bottom p{font-size:13px;color:var(--c-text-3);}
.footer-key{letter-spacing:.5px;}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .page-hero h1{font-size:34px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-hero-media img{height:280px;}
}
@media (max-width:991.98px){
  .site-nav{min-height:64px;}
  .nav-panel{
    background:#fff;border-top:1px solid var(--c-line);margin-top:12px;padding:12px 0 20px;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;}
  .nav-list .nav-link{padding:12px 8px;min-height:44px;display:flex;align-items:center;}
  .nav-list .nav-link::after{display:none;}
  .nav-list .nav-link.active{background:var(--c-primary-050);border-radius:10px;}
  .nav-actions{flex-direction:column;align-items:stretch;gap:12px;padding:12px 8px 0;border-top:1px solid var(--c-line);margin-top:12px;}
  .nav-link-soft{min-height:44px;display:flex;align-items:center;}
  .btn-nav{width:100%;}
  .page-hero{padding:40px 0 56px;}
  .page-hero-grid{grid-template-columns:1fr;gap:40px;}
  .media-note{position:static;margin-top:16px;left:auto;right:auto;bottom:auto;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .cat-layout{grid-template-columns:minmax(0,1fr);}
  .side-panel{display:none;}
  .pill-row{display:flex;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  .site-container{padding:0 16px;}
  .page-hero h1{font-size:28px;line-height:1.3;}
  .hero-lead{font-size:15px;}
  .section-head h2{font-size:24px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .stat-item .num{font-size:26px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .cards-head h2{font-size:20px;}
  .card-body{padding:20px;}
  .compare-foot{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519.98px){
  .hero-cta .btn{width:100%;}
  .brand-sub{display:none;}
  .stat-grid{grid-template-columns:1fr;}
}

/* roulang page: article */
:root{
  --c-primary-700:#0F3E6B;
  --c-primary-600:#14538F;
  --c-primary-500:#1C6BB0;
  --c-primary-300:#7FB2DB;
  --c-primary-050:#EEF5FB;
  --c-accent-500:#0FA3A0;
  --c-accent-100:#E2F4F3;
  --c-bg:#F4F8FC;
  --c-surface:#FFFFFF;
  --c-line:#E2EAF3;
  --c-text:#0E1B2B;
  --c-text-2:#55637A;
  --c-text-3:#8A97A8;
  --r-card:16px;
  --r-lg:20px;
  --r-img:12px;
  --r-btn:12px;
  --r-input:10px;
  --sh-1:0 2px 8px rgba(14,43,74,.05);
  --sh-2:0 10px 28px rgba(14,43,74,.08);
  --sh-3:0 16px 40px rgba(14,43,74,.12);
  --w-container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary-600);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-700)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
button,input,select,textarea{font:inherit}
ul,ol{list-style:none}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(28,107,176,.18);border-radius:6px}

.site-container{width:100%;max-width:var(--w-container);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:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.site-nav.navbar{
  position:relative;
  display:flex;align-items:center;flex-wrap:nowrap;
  min-height:72px;padding:0;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;padding:0;margin:0}
.brand:hover{color:inherit}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;
  border-radius:10px;
  background:var(--c-primary-600);
  color:#fff;font-size:15px;font-weight:700;letter-spacing:.5px;
  display:flex;align-items:center;justify-content:center;
}
.brand-text{
  display:flex;flex-direction:column;line-height:1.15;
  font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:.2px;
}
.brand-sub{font-size:11px;font-weight:500;color:var(--c-text-3);letter-spacing:.3px;margin-top:3px}
.nav-burger{
  display:none;
  width:44px;height:40px;margin-left:auto;
  border:1px solid var(--c-line);border-radius:10px;background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
  cursor:pointer;transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-primary-700);transition:transform .2s ease}
.nav-burger:hover{border-color:var(--c-primary-300)}
.nav-panel{display:flex;align-items:center;flex:1 1 auto}
.nav-list{display:flex;align-items:center;gap:4px;margin:0 0 0 28px;flex:1 1 auto}
.nav-link{
  position:relative;display:block;padding:10px 12px;
  font-size:15px;font-weight:500;color:var(--c-text-2);
  border-radius:8px;white-space:nowrap;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--c-primary-500);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--c-primary-600)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--c-primary-700);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:16px;margin-left:auto}
.nav-link-soft{
  font-size:14px;font-weight:500;color:var(--c-text-2);
  padding:8px 4px;border-bottom:1px dashed var(--c-line);
}
.nav-link-soft:hover{color:var(--c-primary-600);border-bottom-color:var(--c-primary-300)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:600;line-height:1;
  padding:0 22px;height:46px;font-size:15px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn:active{transform:translateY(0)}
.btn-solid{background:var(--c-primary-600);border-color:var(--c-primary-600);color:#fff}
.btn-solid:hover{background:var(--c-primary-700);border-color:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(14,43,74,.18)}
.btn-ghost{background:#fff;border-color:var(--c-primary-300);color:var(--c-primary-600)}
.btn-ghost:hover{background:var(--c-primary-050);border-color:var(--c-primary-500);color:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-soft{background:var(--c-primary-050);border-color:transparent;color:var(--c-primary-600)}
.btn-soft:hover{background:#E3EFF9;color:var(--c-primary-700)}
.btn-nav{height:42px;font-size:14px;padding:0 18px}
.btn-sm{height:36px;font-size:13px;padding:0 16px}
.btn-light-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-light-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn-light-solid{background:#fff;border-color:#fff;color:var(--c-primary-700)}
.btn-light-solid:hover{background:#F0F6FC;color:var(--c-primary-700);transform:translateY(-1px);box-shadow:0 12px 26px rgba(0,0,0,.18)}

/* ============ 面包屑 ============ */
.crumb-bar{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding:22px 0 18px;font-size:14px;color:var(--c-text-3);
}
.crumb-bar a{color:var(--c-text-2)}
.crumb-bar a:hover{color:var(--c-primary-600)}
.crumb-bar .sep{color:#B9C5D4}
.crumb-bar .current{
  color:var(--c-text-3);max-width:56%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ============ 文章布局 ============ */
.article-wrap{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;
  gap:40px;align-items:start;padding-bottom:8px;
}
.article-main{
  min-width:0;max-width:820px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:40px 44px 48px;
}
.article-head h1{
  font-size:clamp(27px,3.4vw,40px);
  line-height:1.3;font-weight:700;letter-spacing:0;
  color:var(--c-text);margin:6px 0 18px;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;
  font-size:14px;color:var(--c-text-3);
}
.article-meta .item{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--c-primary-300)}
.badge-cat{
  display:inline-flex;align-items:center;
  background:var(--c-primary-050);color:var(--c-primary-600);
  border-radius:999px;padding:5px 14px;font-size:13px;font-weight:600;
}
.badge-accent{
  display:inline-flex;align-items:center;
  background:var(--c-accent-100);color:var(--c-accent-500);
  border-radius:999px;padding:4px 12px;font-size:12px;font-weight:600;
}
.rule{height:1px;background:var(--c-line);margin:26px 0 30px}

/* ============ 正文排版 ============ */
.article-body{font-size:16px;line-height:1.75;color:var(--c-text);overflow-wrap:break-word}
.article-body p{margin:0 0 18px}
.article-body h2{
  font-size:24px;line-height:1.45;font-weight:700;color:var(--c-text);
  margin:34px 0 14px;padding-left:12px;border-left:4px solid var(--c-primary-500);
}
.article-body h3{font-size:19px;line-height:1.5;font-weight:600;margin:26px 0 10px}
.article-body h4{font-size:17px;font-weight:600;margin:20px 0 8px}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 18px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:8px}
.article-body li::marker{color:var(--c-primary-500)}
.article-body a{color:var(--c-primary-600);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-primary-700)}
.article-body strong{font-weight:700;color:var(--c-primary-700)}
.article-body blockquote{
  background:var(--c-primary-050);
  border-left:4px solid var(--c-primary-500);
  border-radius:0 12px 12px 0;
  padding:16px 20px;margin:20px 0;
  color:var(--c-text-2);font-size:15px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:20px 0}
.article-body figure{margin:20px 0}
.article-body figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:8px}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;
  border:1px solid var(--c-line);border-radius:12px;overflow:hidden;
}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:12px 14px;text-align:left}
.article-body thead th{background:var(--c-primary-050);color:var(--c-primary-700);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FAFCFE}
.article-body pre{
  background:#F3F6FA;border:1px solid var(--c-line);border-radius:12px;
  padding:16px 18px;overflow:auto;margin:20px 0;font-size:14px;line-height:1.7;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:30px 0}

/* ============ 空态 ============ */
.article-empty{
  border:1px dashed var(--c-line);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;background:#FBFDFF;
}
.article-empty .empty-icon{
  width:56px;height:56px;margin:0 auto 16px;
  border-radius:16px;background:var(--c-primary-050);color:var(--c-primary-500);
  display:flex;align-items:center;justify-content:center;font-size:22px;
}
.article-empty h2{font-size:20px;font-weight:600;margin-bottom:8px}
.article-empty p{color:var(--c-text-2);font-size:15px;margin-bottom:20px}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:22px 22px 20px;
}
.side-title{
  display:flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--c-text);margin-bottom:14px;
}
.side-title i{color:var(--c-primary-500);font-size:14px}
.toc-link{
  display:block;font-size:14px;color:var(--c-text-2);
  padding:7px 0 7px 12px;border-left:2px solid var(--c-line);
  transition:color .2s ease,border-color .2s ease,padding-left .2s ease;
}
.toc-link:hover{color:var(--c-primary-600);border-left-color:var(--c-primary-500)}
.toc-link.is-sub{padding-left:24px;font-size:13px;color:var(--c-text-3)}
.toc-empty{font-size:13px;color:var(--c-text-3);line-height:1.7}
.side-list li{border-bottom:1px solid var(--c-line)}
.side-list li:last-child{border-bottom:0}
.side-list a{
  display:flex;gap:10px;align-items:flex-start;
  padding:11px 0;font-size:14px;color:var(--c-text-2);line-height:1.6;
}
.side-list a:hover{color:var(--c-primary-600)}
.side-list .rank{
  flex:0 0 20px;height:20px;margin-top:2px;border-radius:6px;
  background:var(--c-primary-050);color:var(--c-primary-600);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.side-list li:nth-child(1) .rank{background:var(--c-accent-100);color:var(--c-accent-500)}
.side-cta{
  background:var(--c-primary-700);border-radius:var(--r-card);
  padding:24px 22px;color:#fff;box-shadow:var(--sh-2);
}
.side-cta h3{font-size:17px;font-weight:600;margin-bottom:8px;color:#fff}
.side-cta p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.78);margin-bottom:16px}
.side-cta .btn{width:100%}

/* ============ 相关推荐 ============ */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}
.section-head h2{font-size:24px;font-weight:700;color:var(--c-text);line-height:1.4}
.section-head p{font-size:14px;color:var(--c-text-2);margin-top:6px}
.section-head .more{font-size:14px;font-weight:600;color:var(--c-primary-600)}
.section-head .more:hover{color:var(--c-primary-700)}
.related-block{padding:64px 0 8px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;
}
.post-card:hover{box-shadow:var(--sh-3);border-color:var(--c-primary-300);transform:translateY(-3px)}
.post-thumb{position:relative;aspect-ratio:16/9;background:var(--c-primary-050);overflow:hidden}
.post-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.post-thumb .thumb-tag{
  position:absolute;top:12px;left:12px;
  background:rgba(255,255,255,.94);color:var(--c-primary-600);
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;
}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.post-body h3{font-size:18px;line-height:1.5;font-weight:600;margin-bottom:10px}
.post-body h3 a{color:var(--c-text)}
.post-body h3 a:hover{color:var(--c-primary-600)}
.post-body .excerpt{font-size:14px;color:var(--c-text-2);line-height:1.7;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-3)}
.post-foot .link{font-weight:600;color:var(--c-primary-600);font-size:13px}

/* ============ 底部 CTA ============ */
.cta-band{
  margin:64px 0 0;
  background:var(--c-primary-700);
  border-radius:var(--r-lg);
  padding:48px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-2);
}
.cta-band h2{font-size:26px;font-weight:700;color:#fff;line-height:1.45;margin-bottom:10px}
.cta-band p{font-size:15px;line-height:1.75;color:rgba(255,255,255,.8);max-width:640px}
.cta-band .cta-actions{display:flex;gap:14px;flex-shrink:0;flex-wrap:wrap}
.cta-band .note{font-size:13px;color:rgba(255,255,255,.62);margin-top:10px}

/* ============ 返回入口 ============ */
.back-block{display:flex;gap:14px;flex-wrap:wrap;padding:36px 0 0}
.back-block .btn{min-width:140px}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-bg);border-top:1px solid var(--c-line);margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;padding:64px 0 40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-about{font-size:14px;line-height:1.8;color:var(--c-text-2);max-width:340px}
.footer-title{font-size:15px;font-weight:600;color:var(--c-text);margin-bottom:16px}
.footer-list li{margin-bottom:10px}
.footer-list a{font-size:14px;color:var(--c-text-2)}
.footer-list a:hover{color:var(--c-primary-600)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--c-text-2);margin-bottom:12px}
.footer-contact i{color:var(--c-primary-500);margin-top:4px;font-size:14px}
.footer-bottom{
  border-top:1px solid var(--c-line);
  padding:18px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.footer-key{letter-spacing:.4px}

/* ============ 移动浮动条 ============ */
.float-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  display:none;align-items:center;gap:12px;
  background:var(--c-surface);border-top:1px solid var(--c-line);
  padding:10px 16px;box-shadow:0 -8px 24px rgba(14,43,74,.08);
}
.float-bar .back{font-size:14px;font-weight:600;color:var(--c-text-2);padding:8px 4px}
.float-bar .btn{flex:1 1 auto;height:44px}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-wrap{grid-template-columns:minmax(0,1fr)}
  .article-main{max-width:100%}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side > *{flex:1 1 280px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991.98px){
  .site-nav.navbar{min-height:64px}
  .nav-burger{display:flex}
  .nav-panel{
    position:absolute;top:100%;left:0;right:0;
    display:block;
    background:var(--c-surface);
    border-top:1px solid var(--c-line);
    box-shadow:var(--sh-2);
    padding:14px 20px 22px;
    margin:0;
  }
  .nav-panel.collapse:not(.show){display:none}
  .nav-list{flex-direction:column;align-items:stretch;margin:0;gap:0}
  .nav-list li{width:100%}
  .nav-link{
    display:flex;align-items:center;min-height:44px;
    padding:10px 4px;font-size:16px;border-bottom:1px solid var(--c-line);
  }
  .nav-link::after{display:none}
  .nav-actions{flex-direction:column;align-items:stretch;gap:12px;margin:16px 0 0}
  .nav-link-soft{text-align:center;border-bottom:1px solid var(--c-line);padding:12px 0}
  .btn-nav{width:100%;height:46px;font-size:15px}
  .article-main{padding:28px 24px 34px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px}
  .float-bar{display:flex}
  body{padding-bottom:72px}
}
@media (max-width:767.98px){
  .article-wrap{gap:28px}
  .article-side{flex-direction:column}
  .article-side > *{flex:1 1 auto;width:100%}
  .card-grid{grid-template-columns:minmax(0,1fr);gap:20px}
  .related-block{padding:48px 0 0}
  .crumb-bar .current{max-width:100%;white-space:normal}
  .back-block .btn{flex:1 1 auto;min-width:0}
  .site-footer{margin-top:56px}
}
@media (max-width:575.98px){
  .site-container{padding:0 16px}
  .brand-text{font-size:15px}
  .brand-sub{font-size:10px}
  .brand-mark{width:32px;height:32px;flex:0 0 32px;font-size:13px}
  .article-main{padding:22px 18px 28px;border-radius:var(--r-card)}
  .article-head h1{font-size:26px;line-height:1.35}
  .article-body h2{font-size:20px}
  .article-body h3{font-size:17px}
  .cta-band{padding:28px 20px;border-radius:var(--r-card)}
  .cta-band h2{font-size:21px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .section-head h2{font-size:21px}
}

/* roulang page: category2 */
:root{
  --c-primary-700:#0F3E6B;
  --c-primary-600:#14538F;
  --c-primary-500:#1C6BB0;
  --c-primary-300:#7FB2DB;
  --c-primary-050:#EEF5FB;
  --c-accent-500:#0FA3A0;
  --c-accent-100:#E2F4F3;
  --c-bg:#F4F8FC;
  --c-surface:#FFFFFF;
  --c-line:#E2EAF3;
  --c-text:#0E1B2B;
  --c-text-2:#55637A;
  --c-text-3:#8A97A8;
  --c-lv-base:#6B7C93;
  --c-lv-pro:#1C6BB0;
  --c-lv-flag:#0FA3A0;
  --sh-1:0 2px 8px rgba(14,43,74,.05);
  --sh-2:0 10px 28px rgba(14,43,74,.08);
  --sh-3:0 16px 40px rgba(14,43,74,.12);
  --r-card:16px;
  --r-block:20px;
  --r-img:12px;
  --r-btn:12px;
  --r-input:10px;
  --sp-1:8px;--sp-2:12px;--sp-3:16px;--sp-4:24px;--sp-5:32px;--sp-6:48px;--sp-7:64px;--sp-8:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-primary-500);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-700);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding-left:0;list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(28,107,176,.18);border-radius:6px;}
.site-container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sp-8) 0;}
.sec-head{margin-bottom:var(--sp-6);}
.sec-eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-accent-500);background:var(--c-accent-100);border-radius:999px;padding:5px 14px;margin-bottom:14px;}
h2.sec-title{font-size:30px;line-height:1.3;font-weight:700;color:var(--c-text);letter-spacing:0;}
.sec-desc{margin-top:12px;font-size:16px;color:var(--c-text-2);max-width:760px;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 20px;border-radius:var(--r-btn);font-size:14px;font-weight:600;line-height:1;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;}
.btn i{font-size:13px;}
.btn-solid{background:var(--c-primary-600);color:#fff;}
.btn-solid:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-solid:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-outline{background:#fff;color:var(--c-primary-600);border-color:var(--c-primary-300);}
.btn-outline:hover{background:var(--c-primary-050);color:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-outline:active{transform:translateY(0);}
.btn-ghost{background:var(--c-primary-050);color:var(--c-primary-600);}
.btn-ghost:hover{background:#E1EEF8;color:var(--c-primary-700);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--c-primary-700);}
.btn-light:hover{background:#EAF3FA;color:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-line-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-line-light:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-1px);}
.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.btn-block{width:100%;}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.site-nav{position:relative;display:flex;align-items:center;height:72px;flex-wrap:nowrap;}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{display:flex;align-items:center;justify-content:center;width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:var(--c-primary-600);color:#fff;font-size:14px;font-weight:700;letter-spacing:.02em;}
.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:700;color:var(--c-text);line-height:1.15;letter-spacing:.01em;}
.brand-sub{font-size:11px;font-weight:500;color:var(--c-text-3);letter-spacing:.02em;margin-top:2px;}
.brand:hover .brand-text{color:var(--c-primary-600);}
.nav-burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;background:#fff;padding:0 11px;cursor:pointer;}
.nav-burger span{display:block;height:2px;border-radius:2px;background:var(--c-primary-700);transition:.2s;}
.nav-panel{display:flex;align-items:center;flex:1 1 auto;}
.nav-list{display:flex;align-items:center;gap:4px;}
.site-nav .nav-link{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;font-size:15px;font-weight:500;color:var(--c-text-2);border-radius:10px;background:transparent;transition:color .2s ease;}
.site-nav .nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--c-primary-500);transform:scaleX(0);transform-origin:left center;transition:transform .22s ease;}
.site-nav .nav-link:hover{color:var(--c-primary-600);}
.site-nav .nav-link:hover::after{transform:scaleX(1);}
.site-nav .nav-link.active{color:var(--c-primary-700);font-weight:600;}
.site-nav .nav-link.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:14px;}
.nav-link-soft{font-size:14px;font-weight:500;color:var(--c-text-2);padding:8px 2px;}
.nav-link-soft:hover{color:var(--c-primary-600);}
.btn-nav{height:42px;padding:0 22px;font-size:15px;}

/* ---------- 分类页页头 ---------- */
.page-hero{background:var(--c-primary-050);border-bottom:1px solid var(--c-line);padding:56px 0;}
.page-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-text-3);margin-bottom:18px;}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-primary-600);}
.crumb i{font-size:10px;color:var(--c-text-3);}
.crumb .current{color:var(--c-text-3);}
.page-hero h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:0;}
.page-hero .hero-lead{margin-top:16px;font-size:17px;line-height:1.8;color:var(--c-text-2);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-note{display:flex;flex-wrap:wrap;gap:24px;margin-top:28px;}
.hero-note div{font-size:14px;color:var(--c-text-2);}
.hero-note strong{display:block;font-size:22px;font-weight:700;color:var(--c-primary-700);line-height:1.3;}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-block);border:1px solid #fff;box-shadow:var(--sh-2);}
.hero-media figcaption{margin-top:12px;font-size:13px;color:var(--c-text-3);text-align:center;}

/* ---------- 标签行 ---------- */
.tag-strip{background:#fff;border-bottom:1px solid var(--c-line);padding:18px 0;}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;}
.tag-row .tag-label{font-size:13px;font-weight:600;color:var(--c-text-3);margin-right:4px;}
.tag-pill{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 16px;border-radius:999px;background:var(--c-primary-050);border:1px solid transparent;font-size:14px;font-weight:500;color:var(--c-primary-600);transition:.2s;}
.tag-pill:hover{background:#E1EEF8;color:var(--c-primary-700);}
.tag-pill.is-active{background:var(--c-primary-600);color:#fff;border-color:var(--c-primary-600);}
.tag-pill .count{font-size:12px;color:var(--c-text-3);}
.tag-pill.is-active .count{color:rgba(255,255,255,.78);}

/* ---------- 交替图文块 ---------- */
.alt-stack{display:flex;flex-direction:column;gap:32px;}
.alt-block{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-block);padding:32px;box-shadow:var(--sh-1);transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease;}
.alt-block:hover{box-shadow:var(--sh-3);border-color:var(--c-primary-300);transform:translateY(-2px);}
.alt-block.is-rev .alt-media{order:2;}
.alt-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-img);}
.alt-body .chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--c-primary-600);background:var(--c-primary-050);border-radius:999px;padding:5px 12px;}
.alt-body h3{margin-top:16px;font-size:20px;line-height:1.45;font-weight:600;}
.alt-body p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--c-text-2);}
.check-list{margin-top:18px;display:flex;flex-direction:column;gap:9px;}
.check-list li{position:relative;padding-left:26px;font-size:15px;color:var(--c-text-2);}
.check-list li::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:1px;font-size:12px;color:var(--c-accent-500);}
.alt-body .text-link{margin-top:22px;}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--c-primary-600);}
.text-link i{font-size:12px;transition:transform .2s ease;}
.text-link:hover{color:var(--c-accent-500);}
.text-link:hover i{transform:translateX(4px);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-line);border-radius:0;}
.faq-acc .accordion-item:first-of-type{border-top:1px solid var(--c-line);}
.faq-acc .accordion-button{position:relative;background:transparent;box-shadow:none;color:var(--c-text);font-size:17px;font-weight:600;line-height:1.6;padding:22px 48px 22px 48px;border-radius:0;}
.faq-acc .accordion-button::before{counter-increment:faqidx;content:counter(faqidx,decimal-leading-zero);position:absolute;left:0;top:24px;font-size:14px;font-weight:600;color:var(--c-text-3);}
.faq-acc{counter-reset:faqidx;}
.faq-acc .accordion-button::after{background-image:none!important;content:"\2b";display:flex;align-items:center;justify-content:center;width:auto;height:auto;font-size:19px;font-weight:400;color:var(--c-text-3);transform:none;transition:transform .2s ease,color .2s ease;}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-primary-700);box-shadow:inset 3px 0 0 0 var(--c-primary-500)!important;background:transparent;}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--c-primary-600);}
.faq-acc .accordion-button:not(.collapsed)::before{color:var(--c-primary-600);}
.faq-acc .accordion-button:focus{box-shadow:0 0 0 3px rgba(28,107,176,.18)!important;}
.faq-acc .accordion-button:not(.collapsed):focus{box-shadow:inset 3px 0 0 0 var(--c-primary-500),0 0 0 3px rgba(28,107,176,.18)!important;}
.faq-acc .accordion-body{padding:0 48px 24px 48px;font-size:15px;line-height:1.85;color:var(--c-text-2);}

/* ---------- 底部 CTA 条 ---------- */
.cta-band{background:var(--c-primary-700);border-radius:var(--r-block);padding:48px;color:#fff;display:grid;grid-template-columns:1fr auto;gap:36px;align-items:center;}
.cta-band h2{font-size:28px;line-height:1.35;font-weight:700;color:#fff;}
.cta-band p{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.82);max-width:620px;}
.cta-band .cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-band .fine{margin-top:6px;font-size:13px;color:rgba(255,255,255,.62);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-bg);border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-about{font-size:14px;line-height:1.85;color:var(--c-text-2);max-width:360px;}
.footer-title{font-size:15px;font-weight:600;color:var(--c-text);margin-bottom:18px;}
.footer-list li{margin-bottom:11px;}
.footer-list a{font-size:14px;color:var(--c-text-2);}
.footer-list a:hover{color:var(--c-primary-600);}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--c-text-2);margin-bottom:13px;}
.footer-contact i{color:var(--c-primary-500);font-size:14px;margin-top:5px;}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;border-top:1px solid var(--c-line);padding:22px 0;font-size:13px;color:var(--c-text-3);}
.footer-bottom p{margin:0;}
.footer-key{letter-spacing:.04em;}

/* ---------- 响应式 ---------- */
@media (min-width:1400px){
  .site-container{max-width:1320px;}
}
@media (max-width:1199.98px){
  .page-hero h1{font-size:34px;}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  .page-hero{padding:40px 0;}
  .page-hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{order:2;}
  .page-hero h1{font-size:30px;}
  .alt-block{grid-template-columns:1fr;gap:24px;}
  .alt-block.is-rev .alt-media{order:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{grid-template-columns:1fr;padding:36px;gap:26px;}
  .cta-band .cta-actions{flex-direction:row;flex-wrap:wrap;}
  .nav-burger{display:flex;}
  .nav-panel{position:absolute;top:100%;left:0;right:0;display:block;background:#fff;border-bottom:1px solid var(--c-line);box-shadow:var(--sh-2);padding:10px 24px 20px;max-height:calc(100vh - 72px);overflow-y:auto;}
  .nav-panel.collapse:not(.show){display:none;}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;margin:0!important;}
  .site-nav .nav-link{height:44px;padding:0 12px;width:100%;border-radius:10px;}
  .site-nav .nav-link::after{left:12px;right:auto;width:22px;bottom:6px;}
  .site-nav .nav-link:hover{background:var(--c-primary-050);}
  .nav-actions{flex-direction:column;align-items:stretch;gap:10px;padding-top:12px;border-top:1px solid var(--c-line);margin-top:10px;}
  .nav-link-soft{padding:12px;text-align:center;}
  .btn-nav{width:100%;height:46px;}
}
@media (max-width:767.98px){
  .section{padding:56px 0;}
  h2.sec-title{font-size:24px;}
  .page-hero h1{font-size:26px;}
  .page-hero .hero-lead{font-size:15px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-note{gap:18px;}
  .alt-block{padding:20px;}
  .alt-body h3{font-size:18px;}
  .faq-acc .accordion-button{font-size:16px;padding:20px 40px 20px 40px;}
  .faq-acc .accordion-body{padding:0 8px 22px 40px;}
  .cta-band{padding:28px;}
  .cta-band h2{font-size:22px;}
  .cta-band .cta-actions{flex-direction:column;}
  .cta-band .cta-actions .btn{width:100%;}
  .site-container{padding:0 16px;}
}
@media (max-width:575.98px){
  .brand-text{font-size:16px;}
  .brand-sub{display:none;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
  .tag-pill{height:34px;padding:0 14px;font-size:13px;}
}

/* roulang page: category3 */
:root{
  --c-primary-700:#0F3E6B;
  --c-primary-600:#14538F;
  --c-primary-500:#1C6BB0;
  --c-primary-300:#7FB2DB;
  --c-primary-050:#EEF5FB;
  --c-accent-500:#0FA3A0;
  --c-accent-100:#E2F4F3;
  --c-bg:#F4F8FC;
  --c-surface:#FFFFFF;
  --c-line:#E2EAF3;
  --c-text:#0E1B2B;
  --c-text-2:#55637A;
  --c-text-3:#8A97A8;
  --c-level-base:#6B7C93;
  --sh-1:0 2px 8px rgba(14,43,74,.05);
  --sh-2:0 10px 28px rgba(14,43,74,.08);
  --sh-3:0 16px 40px rgba(14,43,74,.12);
  --r-card:16px;
  --r-lg:20px;
  --r-img:12px;
  --r-btn:12px;
  --ring:0 0 0 3px rgba(28,107,176,.18);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary-600);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-700);}
h1,h2,h3,h4{margin:0;color:var(--c-text);letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:10px;}

.site-container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.narrow{max-width:820px;}

/* ---------- 按钮 ---------- */
.btn{
  --bs-btn-focus-box-shadow:none;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;border-radius:var(--r-btn);font-size:14px;font-weight:600;
  border:1px solid transparent;cursor:pointer;line-height:1;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
}
.btn:active{transform:translateY(0);}
.btn-solid{background:var(--c-primary-600);color:#fff;border-color:var(--c-primary-600);}
.btn-solid:hover{background:var(--c-primary-700);border-color:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-outline{background:#fff;color:var(--c-primary-600);border-color:var(--c-primary-300);}
.btn-outline:hover{background:var(--c-primary-050);border-color:var(--c-primary-500);color:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-soft{background:var(--c-primary-050);color:var(--c-primary-600);border-color:transparent;}
.btn-soft:hover{background:#E2EEF8;color:var(--c-primary-700);transform:translateY(-1px);}
.btn-white{background:#fff;color:var(--c-primary-700);border-color:#fff;}
.btn-white:hover{background:#EAF3FB;color:var(--c-primary-700);transform:translateY(-1px);}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;transform:translateY(-1px);}
.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.btn-sm{height:32px;padding:0 14px;font-size:13px;}
.btn-block{width:100%;}

/* ---------- 标签 ---------- */
.chip{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;background:var(--c-primary-050);color:var(--c-primary-600);font-size:13px;font-weight:500;}
.chip-accent{background:var(--c-accent-100);color:var(--c-accent-500);}
.chip-line{background:#fff;border:1px solid var(--c-line);color:var(--c-text-2);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.4px;color:var(--c-accent-500);}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease;}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.site-nav{height:72px;display:flex;align-items:center;flex-wrap:nowrap;}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 36px;
  background:var(--c-primary-600);color:#fff;font-size:14px;font-weight:700;letter-spacing:.5px;
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:700;color:var(--c-text);line-height:1.1;}
.brand-sub{font-size:11px;font-weight:500;color:var(--c-text-3);letter-spacing:.6px;margin-top:2px;}
.nav-list{display:flex;align-items:center;gap:28px;}
.nav-list .nav-link{
  position:relative;padding:6px 0;font-size:15px;font-weight:500;color:var(--c-text-2);line-height:1.4;
}
.nav-list .nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;border-radius:2px;
  background:var(--c-primary-500);transition:width .22s ease;
}
.nav-list .nav-link:hover{color:var(--c-primary-600);}
.nav-list .nav-link:hover::after{width:100%;}
.nav-list .nav-link.active{color:var(--c-primary-700);font-weight:600;}
.nav-list .nav-link.active::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:18px;}
.nav-link-soft{font-size:14px;font-weight:500;color:var(--c-text-2);}
.nav-link-soft:hover{color:var(--c-primary-600);}
.btn-nav{height:42px;padding:0 22px;}
.nav-burger{
  width:44px;height:40px;border:1px solid var(--c-line);border-radius:10px;background:#fff;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text-2);}
.nav-burger:focus{box-shadow:var(--ring);}

@media (max-width:991.98px){
  .site-nav{height:64px;justify-content:space-between;}
  .nav-panel{
    position:absolute;top:64px;left:0;right:0;background:#fff;border-top:1px solid var(--c-line);
    box-shadow:var(--sh-2);padding:12px 24px 22px;max-height:calc(100vh - 64px);overflow-y:auto;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:0;margin-left:0 !important;margin-right:0 !important;}
  .nav-list .nav-link{display:block;height:44px;line-height:44px;padding:0;border-bottom:1px solid var(--c-line);font-size:15px;}
  .nav-list .nav-link::after{display:none;}
  .nav-actions{flex-direction:column;align-items:stretch;gap:12px;margin-top:16px;}
  .nav-link-soft{height:44px;line-height:44px;text-align:center;border:1px solid var(--c-line);border-radius:var(--r-btn);}
  .btn-nav{width:100%;}
}

/* ---------- 页头 ---------- */
.page-hero{background:var(--c-primary-050);border-bottom:1px solid var(--c-line);padding:32px 0 72px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-3);margin-bottom:28px;flex-wrap:wrap;}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-primary-600);}
.crumb i{font-size:11px;color:var(--c-text-3);}
.crumb .current{color:var(--c-text-3);}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px;align-items:center;}
.page-hero h1{font-size:40px;line-height:1.2;font-weight:700;margin:14px 0 16px;}
.hero-lead{font-size:17px;line-height:1.75;color:var(--c-text-2);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-lg);border:1px solid var(--c-line);box-shadow:var(--sh-2);}
.hero-points{display:flex;gap:36px;flex-wrap:wrap;margin-top:32px;padding-top:24px;border-top:1px solid var(--c-line);}
.hero-points li{display:flex;flex-direction:column;gap:2px;}
.hero-points strong{font-size:22px;font-weight:700;color:var(--c-primary-700);line-height:1.2;}
.hero-points span{font-size:13px;color:var(--c-text-3);}

/* ---------- 数据条 ---------- */
.stat-strip{background:var(--c-surface);border-bottom:1px solid var(--c-line);}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:40px 0;}
.stat-item{text-align:left;}
.stat-num{font-size:32px;font-weight:600;color:var(--c-primary-700);line-height:1.2;}
.stat-desc{font-size:13px;color:var(--c-text-2);margin-top:4px;}

/* ---------- 标题 ---------- */
.section-head{margin-bottom:40px;max-width:760px;}
.section-head h2{font-size:30px;line-height:1.3;font-weight:700;margin:10px 0 12px;}
.section-head p{font-size:16px;color:var(--c-text-2);}

/* ---------- 主体两栏 ---------- */
.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start;}
.timeline{position:relative;}
.timeline::before{content:"";position:absolute;left:27px;top:20px;bottom:20px;width:2px;background:var(--c-line);}
.timeline-item{position:relative;padding-left:80px;margin-bottom:24px;}
.timeline-item:last-child{margin-bottom:0;}
.tl-num{
  position:absolute;left:0;top:0;width:56px;height:56px;border-radius:16px;background:#fff;
  border:1px solid var(--c-line);box-shadow:var(--sh-1);color:var(--c-primary-600);
  font-size:17px;font-weight:700;display:flex;align-items:center;justify-content:center;letter-spacing:.5px;
}
.tl-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px 28px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary-300);}
.tl-card h3{font-size:20px;font-weight:600;line-height:1.4;margin-bottom:8px;}
.tl-card p{font-size:15px;color:var(--c-text-2);}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tl-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;font-weight:600;color:var(--c-primary-600);}
.tl-link i{font-size:12px;transition:transform .2s ease;}
.tl-link:hover i{transform:translateX(3px);}

/* ---------- 侧栏 CTA ---------- */
.side-card{
  position:sticky;top:96px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-2);
}
.side-card h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.side-card > p{font-size:14px;color:var(--c-text-2);}
.side-list{margin:18px 0;display:grid;gap:10px;}
.side-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--c-text-2);}
.side-list i{color:var(--c-accent-500);font-size:13px;margin-top:5px;}
.side-note{font-size:13px;color:var(--c-text-3);margin-top:12px;text-align:center;}
.side-divider{height:1px;background:var(--c-line);margin:18px 0;}

/* ---------- 排行列表 ---------- */
.rank-list{display:grid;gap:12px;}
.rank-item{
  display:grid;grid-template-columns:48px 96px minmax(0,1fr) auto;gap:18px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:14px;padding:12px 18px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rank-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary-300);}
.rank-no{font-size:20px;font-weight:700;color:var(--c-primary-300);text-align:center;}
.rank-item img{width:96px;height:60px;object-fit:cover;border-radius:10px;}
.rank-body h3{font-size:17px;font-weight:600;margin-bottom:4px;}
.rank-body h3 a{color:var(--c-text);}
.rank-body h3 a:hover{color:var(--c-primary-600);}
.rank-body p{font-size:13px;color:var(--c-text-3);}

/* ---------- 咨询表单 ---------- */
.form-wrap{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:36px;box-shadow:var(--sh-1);}
.consult-form{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:28px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field-full{grid-column:1 / -1;}
.field label{font-size:14px;color:var(--c-text-2);font-weight:500;}
.field input,.field select,.field textarea{
  width:100%;background:#F7FAFD;border:1px solid var(--c-line);border-radius:10px;
  padding:12px 14px;font-size:15px;color:var(--c-text);transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--c-text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--c-primary-500);box-shadow:var(--ring);
}
.form-actions{grid-column:1 / -1;display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:4px;}
.form-tip{font-size:13px;color:var(--c-text-3);}
.form-done{grid-column:1 / -1;font-size:14px;color:var(--c-accent-500);font-weight:600;}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--c-primary-700);border-radius:var(--r-lg);padding:44px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:32px;}
.cta-band h2{font-size:28px;font-weight:700;color:#fff;line-height:1.35;}
.cta-band p{font-size:15px;color:#C9DCF0;margin-top:10px;max-width:620px;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}
.cta-small{font-size:13px;color:#9FC0DF;margin-top:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-bg);border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-about{font-size:14px;color:var(--c-text-2);max-width:340px;}
.footer-title{font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-list{display:grid;gap:10px;}
.footer-list a{font-size:14px;color:var(--c-text-2);}
.footer-list a:hover{color:var(--c-primary-600);}
.footer-contact{display:grid;gap:12px;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--c-text-2);}
.footer-contact i{color:var(--c-primary-500);font-size:13px;margin-top:5px;}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid var(--c-line);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--c-text-3);}
.footer-key{letter-spacing:.6px;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .content-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .side-card{position:static;}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .page-hero h1{font-size:32px;}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .hero-media{order:2;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:28px;padding:32px 0;}
  .section-head h2{font-size:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .cta-band .cta-actions{width:100%;}
}
@media (max-width:767.98px){
  .section{padding:56px 0;}
  .site-container{padding:0 16px;}
  .page-hero{padding:24px 0 56px;}
  .page-hero h1{font-size:28px;}
  .hero-points{gap:24px;}
  .rank-item{grid-template-columns:36px minmax(0,1fr);grid-template-areas:"no body" "no body";gap:12px 14px;padding:14px;}
  .rank-item img{display:none;}
  .consult-form{grid-template-columns:1fr;}
  .form-wrap{padding:24px;}
  .timeline::before{left:23px;}
  .timeline-item{padding-left:64px;}
  .tl-num{width:48px;height:48px;font-size:15px;}
  .tl-card{padding:20px;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .btn-block-mobile{width:100%;}
}
@media (max-width:575.98px){
  .hero-actions .btn{width:100%;}
  .stat-grid{grid-template-columns:1fr;gap:20px;}
  .brand-sub{display:none;}
}