/* roulang page: index */
:root{
  --brand:#1B5FE0;
  --brand-dark:#12439E;
  --brand-light:#E8F0FF;
  --brand-th:#EEF4FF;
  --teal:#12B4A0;
  --amber:#FF9F1C;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --text:#1F2937;
  --text-2:#5B6B82;
  --text-3:#8A97A8;
  --line:#E6ECF5;
  --stroke:#CBD8EE;
  --footer:#0F2544;
  --danger:#E5484D;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --s1:0 1px 2px rgba(18,40,80,.04),0 8px 24px rgba(18,40,80,.06);
  --s2:0 2px 4px rgba(18,40,80,.05),0 16px 40px rgba(18,40,80,.10);
  --s3:0 24px 60px rgba(18,40,80,.14);
  --bs-primary:#1B5FE0;
  --bs-body-color:#1F2937;
  --bs-body-bg:#F5F8FD;
  --bs-border-color:#E6ECF5;
  --bs-link-color:#1B5FE0;
  --bs-link-hover-color:#12439E;
  --bs-border-radius:10px;
  --bs-border-radius-lg:14px;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",Inter,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",Inter,system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  background-image:radial-gradient(760px 420px at 95% 4%,rgba(27,95,224,.07),transparent 62%),radial-gradient(620px 380px at 2% 42%,rgba(18,180,160,.05),transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--brand-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input,select,textarea{font:inherit;color:inherit;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 3px rgba(27,95,224,.12);border-radius:6px;}
.container{max-width:1200px;padding-left:20px;padding-right:20px;}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ============ 顶部活动条 ============ */
.topbar{
  background:#0F2544;
  color:#fff;
  font-size:13px;
  min-height:38px;
  display:flex;
  align-items:center;
}
.topbar .container{display:flex;align-items:center;gap:16px;flex-wrap:nowrap;}
.topbar-tag{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(18,180,160,.18);
  color:#6EE7DA;
  border:1px solid rgba(18,180,160,.35);
  border-radius:999px;
  padding:2px 10px;
  font-weight:600;
  white-space:nowrap;
  flex:0 0 auto;
}
.topbar-tag i{font-size:10px;}
.topbar-notice{
  flex:1 1 auto;
  min-width:0;
  overflow:hidden;
  white-space:nowrap;
  text-overflow:ellipsis;
  color:#D6E1F2;
}
.topbar-notice strong{color:#fff;font-weight:600;}
.topbar-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.topbar-count{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,159,28,.16);
  border:1px solid rgba(255,159,28,.34);
  color:#FFC46B;
  border-radius:999px;
  padding:2px 10px;
  font-weight:600;
}
.topbar-count b{color:#FFD79A;font-weight:700;letter-spacing:.5px;}
.topbar-close{
  width:24px;height:24px;border:0;border-radius:50%;
  background:rgba(255,255,255,.10);color:#B9C7DC;
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background .2s ease-out,color .2s ease-out;
}
.topbar-close:hover{background:rgba(255,255,255,.2);color:#fff;}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);box-shadow:var(--s1);}
.mainnav{padding:0;background:transparent;}
.mainnav .container{display:flex;align-items:center;min-height:72px;gap:16px;transition:min-height .2s ease-out;}
.site-header.is-scrolled .mainnav .container{min-height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;font-size:14px;letter-spacing:.5px;
  box-shadow:0 6px 16px rgba(27,95,224,.28);
}
.brand-text{font-size:17px;font-weight:700;color:var(--text);letter-spacing:.2px;}
.brand-text span{color:var(--brand);}
.nav-wrap{display:flex;align-items:center;flex:1 1 auto;gap:16px;}
.nav-list{display:flex;align-items:center;gap:4px;margin:0 auto;}
.nav-list a{
  display:inline-flex;align-items:center;
  height:44px;padding:0 16px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .2s ease-out,background .2s ease-out;
  position:relative;
}
.nav-list a:hover{color:var(--brand);background:#F2F7FF;}
.nav-list a.active{color:var(--brand);font-weight:600;}
.nav-list a.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(18,180,160,.10);color:#0E8C7D;
  border-radius:999px;padding:4px 12px;font-size:12px;font-weight:600;
}
.status-badge i{font-size:8px;}
.navbar-toggler{
  border:1px solid var(--stroke);border-radius:10px;
  width:44px;height:44px;padding:0;
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;color:var(--brand);
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(27,95,224,.12);}
.navbar-toggler i{font-size:18px;}
@media (max-width:991.98px){
  .nav-wrap{display:none;}
  .nav-wrap.show{
    display:flex;flex-direction:column;align-items:stretch;gap:8px;
    position:absolute;left:0;right:0;top:100%;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:var(--s3);padding:16px 20px 22px;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;margin:0;}
  .nav-list a{height:48px;justify-content:flex-start;padding:0 14px;font-size:16px;}
  .nav-list a.active{background:#F2F7FF;}
  .nav-list a.active::after{display:none;}
  .nav-right{flex-direction:column;align-items:stretch;gap:10px;margin-top:6px;}
  .nav-right .btn{width:100%;}
  .status-badge{justify-content:center;}
}

/* ============ 按钮 ============ */
.btn{
  --bs-btn-focus-box-shadow:none;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;
  transition:transform .2s ease-out,background .2s ease-out,box-shadow .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.btn:active{transform:translateY(0);}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(27,95,224,.22);}
.btn-brand:hover,.btn-brand:focus{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--s2);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--stroke);}
.btn-ghost:hover,.btn-ghost:focus{background:#F2F7FF;border-color:var(--brand);color:var(--brand-dark);transform:translateY(-1px);}
.btn-link-ghost{background:transparent;color:var(--brand);border:0;padding:0;height:auto;font-weight:600;text-decoration:underline;text-underline-offset:4px;}
.btn-link-ghost:hover{color:var(--brand-dark);}
.btn-sm-nav{height:42px;padding:0 18px;font-size:14px;}
.btn-dot::before{content:"";width:7px;height:7px;border-radius:50%;background:#8FF3E4;display:inline-block;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-sm{padding:64px 0;}
.section-head{margin-bottom:40px;max-width:760px;}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-light);border-radius:999px;padding:5px 14px;margin-bottom:14px;
}
.section h2{font-size:28px;font-weight:600;line-height:1.4;letter-spacing:-.2px;}
.section-sub{margin-top:12px;font-size:16px;color:var(--text-2);line-height:1.8;}
.sec-divider{width:64px;height:2px;border-radius:2px;background:rgba(27,95,224,.22);margin:0 auto 56px;}

/* ============ Hero ============ */
.hero{padding:72px 0 88px;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero-copy{min-height:480px;display:flex;flex-direction:column;justify-content:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);box-shadow:var(--s1);
  border-radius:999px;padding:6px 14px;font-size:13px;font-weight:600;color:var(--brand);
  width:max-content;margin-bottom:22px;
}
.hero h1{
  font-size:44px;line-height:1.28;font-weight:700;letter-spacing:-.6px;
}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{margin-top:20px;font-size:18px;color:var(--text-2);line-height:1.8;max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{
  display:flex;align-items:stretch;gap:0;margin-top:44px;
  border-top:1px solid var(--line);padding-top:28px;
}
.hero-stat{padding-right:28px;margin-right:28px;border-right:1px solid var(--line);}
.hero-stat:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-stat b{display:block;font-size:24px;font-weight:600;color:var(--text);line-height:1.2;font-variant-numeric:tabular-nums;}
.hero-stat span{display:block;margin-top:6px;font-size:13px;color:var(--text-3);}
.hero-media{position:relative;}
.hero-media img{width:100%;border-radius:16px;box-shadow:var(--s2);object-fit:cover;aspect-ratio:4/3;}
.hero-float{
  position:absolute;right:-8px;bottom:-18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--s3);padding:14px 18px;min-width:196px;
}
.hero-float .lv{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-light);color:var(--brand);border-radius:999px;
  padding:3px 10px;font-size:12px;font-weight:600;margin-bottom:8px;
}
.hero-float p{font-size:13px;color:var(--text-2);line-height:1.6;}

/* ============ 平台支持 ============ */
.platform-list{border:1px solid var(--line);border-radius:var(--r-card);background:#fff;box-shadow:var(--s1);overflow:hidden;}
.platform-row{
  display:grid;grid-template-columns:210px 1fr 190px 130px;
  align-items:center;gap:20px;padding:22px 26px;border-bottom:1px solid var(--line);
  transition:background .2s ease-out;
}
.platform-row:last-child{border-bottom:0;}
.platform-row:hover{background:#F7FAFF;}
.platform-name{display:flex;align-items:center;gap:12px;font-size:16px;font-weight:600;}
.platform-name i{
  width:36px;height:36px;border-radius:10px;background:var(--brand-light);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;
}
.platform-desc{font-size:15px;color:var(--text-2);}
.platform-ver{font-size:14px;color:var(--text-2);font-variant-numeric:tabular-nums;}
.platform-ver b{color:var(--text);font-weight:600;}
.tag{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 12px;font-size:12px;font-weight:600;}
.tag-blue{background:var(--brand-light);color:var(--brand);}
.tag-teal{background:rgba(18,180,160,.10);color:#0E8C7D;}
.tag-amber{background:rgba(255,159,28,.12);color:#B36A00;}

/* ============ 权益对比表 ============ */
.compare-wrap{border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:var(--s1);overflow:hidden;}
.compare-table{width:100%;border-collapse:collapse;margin:0;}
.compare-table th,.compare-table td{padding:18px 20px;text-align:center;border-bottom:1px solid var(--line);font-size:15px;}
.compare-table thead th{
  position:sticky;top:0;z-index:2;
  background:var(--brand-th);color:var(--brand-dark);
  font-size:14px;font-weight:600;
}
.compare-table thead th:first-child{text-align:left;color:var(--text-2);}
.compare-table td:first-child{text-align:left;font-weight:500;color:var(--text);width:26%;}
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table tbody tr:hover td{background:#F7FAFF;}
.compare-table .rec-col{position:relative;background:rgba(27,95,224,.035);}
.compare-table thead .rec-col::after{
  content:"推荐";
  position:absolute;top:-1px;right:14px;
  background:var(--amber);color:#5A3400;
  font-size:11px;font-weight:700;line-height:1;
  padding:5px 9px;border-radius:0 0 8px 8px;
}
.compare-table thead .rec-col{box-shadow:inset 0 3px 0 var(--brand);}
.ok-ico{color:var(--teal);font-size:15px;}
.no-ico{color:#8A97A8;font-size:15px;}
.price-cell b{font-size:20px;font-weight:600;font-variant-numeric:tabular-nums;color:var(--brand);}
.price-cell span{font-size:13px;color:var(--text-3);margin-left:2px;}

/* ============ 等级亮点 ============ */
.level-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:stretch;}
.level-mini{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.level-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--s1);padding:28px;display:flex;flex-direction:column;
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.level-card:hover{transform:translateY(-2px);box-shadow:var(--s2);}
.level-card.is-main{transform:scale(1.015);border-color:var(--brand);}
.level-card.is-main:hover{transform:scale(1.015) translateY(-2px);}
.level-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;}
.level-name{font-size:20px;font-weight:600;}
.level-feats{margin:16px 0 0;display:grid;gap:10px;}
.level-feats li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.7;}
.level-feats i{color:var(--teal);font-size:13px;margin-top:7px;flex:0 0 auto;}
.level-price{margin-top:auto;padding-top:22px;display:flex;align-items:baseline;gap:6px;}
.level-price b{font-size:30px;font-weight:600;color:var(--brand);font-variant-numeric:tabular-nums;}
.level-price em{font-style:normal;font-size:14px;color:var(--text-3);}
.level-card .btn{margin-top:18px;width:100%;}

/* ============ 内容预览 ============ */
.preview-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--s1);overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform .22s ease-out,box-shadow .22s ease-out;
}
.preview-card:hover{transform:translateY(-2px);box-shadow:var(--s2);}
.preview-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:#EEF4FF;}
.preview-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .25s ease-out;}
.preview-card:hover .preview-thumb img{transform:scale(1.03);}
.preview-thumb .tag{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);}
.preview-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto;}
.preview-body h3{font-size:18px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.preview-body p{margin-top:10px;font-size:15px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.preview-foot{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);}
.preview-foot a{font-weight:600;font-size:13px;}
.preview-card.locked .preview-thumb img{filter:grayscale(.35);opacity:.9;}
.preview-card.locked .preview-body h3{color:#4A586C;}
.lock-bar{
  margin-top:14px;background:#F7FAFF;border:1px dashed var(--stroke);border-radius:10px;
  padding:8px 12px;font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:8px;
}

/* ============ 最新信息 ============ */
.news-feature{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--s1);overflow:hidden;margin-bottom:24px;
  transition:transform .22s ease-out,box-shadow .22s ease-out;
}
.news-feature:hover{transform:translateY(-2px);box-shadow:var(--s2);}
.news-feature-link{display:grid;grid-template-columns:340px 1fr;gap:0;color:inherit;}
.news-feature-media{overflow:hidden;background:#EEF4FF;}
.news-feature-media img{width:100%;height:100%;object-fit:cover;border-radius:0;min-height:230px;}
.news-feature-body{padding:26px 28px;display:flex;flex-direction:column;}
.news-feature-body h3{margin-top:14px;font-size:22px;font-weight:600;line-height:1.5;}
.news-feature-body p{margin-top:12px;font-size:15px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;gap:16px;font-size:13px;color:var(--text-3);}
.news-list{border:1px solid var(--line);border-radius:var(--r-card);background:#fff;box-shadow:var(--s1);overflow:hidden;}
.news-item{display:block;padding:20px 24px;border-bottom:1px solid var(--line);color:inherit;transition:background .2s ease-out;}
.news-item:last-child{border-bottom:0;}
.news-item:hover{background:#F7FAFF;}
.news-item h3{font-size:17px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item p{margin-top:8px;font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item .news-meta{padding-top:10px;margin-top:0;}
.empty-state{
  background:#fff;border:1px dashed var(--stroke);border-radius:var(--r-card);
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;text-align:center;padding:32px;
}
.empty-state i{font-size:26px;color:var(--text-3);}
.empty-state p{color:var(--text-2);font-size:15px;}

/* ============ 使用反馈 ============ */
.feedback-scroll{display:flex;gap:20px;overflow-x:auto;padding:6px 4px 18px;scroll-snap-type:x mandatory;}
.feedback-card{
  flex:0 0 360px;scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--s1);padding:24px;
}
.feedback-card .quote{font-size:15px;color:var(--text);line-height:1.85;}
.feedback-who{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;gap:12px;}
.feedback-who .avatar{
  width:40px;height:40px;border-radius:12px;background:var(--brand-light);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
}
.feedback-who b{display:block;font-size:14px;font-weight:600;}
.feedback-who span{font-size:12px;color:var(--text-3);}

/* ============ FAQ ============ */
.faq-acc .accordion-item{
  background:#fff;border:1px solid var(--line) !important;border-radius:var(--r-card) !important;
  box-shadow:var(--s1);margin-bottom:12px;overflow:hidden;
}
.faq-acc .accordion-button{
  background:#fff;font-size:17px;font-weight:600;color:var(--text);
  padding:20px 24px;box-shadow:none !important;border:0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand);}
.faq-acc .accordion-button::after{
  content:"+";font-size:22px;font-weight:400;color:var(--brand);
  background-image:none;width:26px;height:26px;line-height:24px;text-align:center;
  border-radius:8px;background-color:var(--brand-light);flex:0 0 auto;margin-left:0;
}
.faq-acc .accordion-button:not(.collapsed)::after{content:"−";background-color:var(--brand);color:#fff;}
.faq-acc .accordion-button:focus{box-shadow:0 0 0 3px rgba(27,95,224,.10) !important;}
.faq-acc .accordion-body{padding:0 24px 22px;font-size:15px;color:var(--text-2);line-height:1.8;}
.faq-acc .accordion-item:has(.accordion-button:not(.collapsed)){border-left:3px solid var(--brand) !important;}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--brand-th);
  border:1px solid var(--line);border-radius:20px;box-shadow:var(--s3);
  padding:44px;display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center;
}
.cta-band h2{font-size:28px;font-weight:600;line-height:1.4;}
.cta-band .cta-sub{margin-top:12px;font-size:16px;color:var(--text-2);}
.cta-points{margin-top:24px;display:grid;gap:12px;}
.cta-points li{display:flex;gap:12px;font-size:15px;color:var(--text-2);align-items:flex-start;}
.cta-points i{color:var(--teal);margin-top:7px;font-size:13px;}
.cta-form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--s1);padding:26px;}
.form-label{font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:8px;display:block;}
.form-control,.form-select{
  height:48px;border-radius:var(--r-btn);border:1px solid var(--stroke);
  font-size:15px;color:var(--text);box-shadow:none;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.form-control::placeholder{color:#8A97A8;}
.form-control:focus,.form-select:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,95,224,.12);}
.form-group{margin-bottom:16px;}
.form-note{margin-top:14px;font-size:13px;color:var(--text-3);line-height:1.7;display:flex;gap:8px;}
.form-note i{margin-top:5px;color:var(--teal);font-size:12px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer);color:#B9C7DC;margin-top:88px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--brand);box-shadow:none;}
.footer-brand .brand-text{color:#fff;}
.site-footer p{font-size:14px;line-height:1.8;color:#B9C7DC;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-links{display:grid;gap:12px;}
.footer-links a{color:#B9C7DC;font-size:14px;transition:color .2s ease-out;}
.footer-links a:hover{color:#fff;}
.footer-contact li{font-size:14px;display:flex;gap:10px;margin-bottom:12px;line-height:1.7;}
.footer-contact i{color:var(--brand);margin-top:6px;font-size:13px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:#8FA1BC;
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .hero-grid{gap:40px;}
  .hero h1{font-size:38px;}
  .cta-band{padding:36px;gap:32px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:32px;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .hero{padding:48px 0 64px;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-copy{min-height:auto;}
  .hero-float{position:static;margin-top:16px;right:auto;bottom:auto;}
  .level-grid{grid-template-columns:1fr;}
  .level-mini{grid-template-rows:auto;grid-template-columns:1fr 1fr;}
  .level-card.is-main{transform:none;}
  .level-card.is-main:hover{transform:translateY(-2px);}
  .cta-band{grid-template-columns:1fr;}
  .news-feature-link{grid-template-columns:1fr;}
  .news-feature-media img{min-height:200px;aspect-ratio:16/9;}
  .platform-row{grid-template-columns:1fr 1fr;row-gap:10px;}
  .platform-desc{grid-column:1 / -1;}
}
@media (max-width:767.98px){
  .section{padding:48px 0;}
  .section-head{margin-bottom:28px;}
  .section h2,.cta-band h2{font-size:24px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:16px;}
  .hero-stats{flex-wrap:wrap;gap:16px 0;}
  .hero-stat{padding-right:20px;margin-right:20px;}
  .hero-actions .btn{width:100%;}
  .level-mini{grid-template-columns:1fr;}
  .compare-wrap{background:transparent;border:0;box-shadow:none;overflow:visible;}
  .compare-table thead{display:none;}
  .compare-table,.compare-table tbody,.compare-table tr,.compare-table td{display:block;width:100%;}
  .compare-table tr{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--s1);margin-bottom:14px;padding:6px 0;
  }
  .compare-table td{border:0;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:10px 18px;text-align:right;}
  .compare-table td::before{content:attr(data-label);font-weight:600;color:var(--text-2);font-size:14px;text-align:left;}
  .compare-table td:first-child{width:100%;border-bottom:1px solid var(--line);font-weight:600;font-size:16px;text-align:left;}
  .compare-table td:first-child::before{display:none;}
  .compare-table thead .rec-col::after{display:none;}
  .feedback-card{flex:0 0 84%;}
  .cta-band{padding:26px 20px;border-radius:16px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{margin-top:56px;padding-top:48px;}
  .form-control,.form-select{height:48px;}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
  .topbar .container{gap:10px;}
  .topbar-notice{display:none;}
  .brand-text{font-size:15px;}
  .hero h1{font-size:26px;}
  .hero-stat b{font-size:20px;}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:13px;}
  .news-feature-body{padding:20px;}
}

/* roulang page: article */
:root{
  --brand:#1B5FE0; --brand-dark:#12439E; --brand-soft:#E8F0FF; --brand-head:#EEF4FF;
  --teal:#12B4A0; --amber:#FF9F1C;
  --bg:#F5F8FD; --card:#FFFFFF; --text:#1F2937; --muted:#5B6B82; --weak:#8A97A8;
  --line:#E6ECF5; --line-strong:#CBD8EE; --footer:#0F2544;
  --danger:#E5484D;
  --r-card:14px; --r-btn:10px; --r-input:10px; --r-img:12px;
  --s1:0 1px 2px rgba(18,40,80,.04), 0 8px 24px rgba(18,40,80,.06);
  --s2:0 2px 4px rgba(18,40,80,.05), 0 16px 40px rgba(18,40,80,.10);
  --s3:0 24px 60px rgba(18,40,80,.14);
  --bs-body-bg:var(--bg); --bs-body-color:var(--text); --bs-primary:var(--brand);
  --bs-border-radius:var(--r-btn); --bs-link-color:var(--brand); --bs-link-hover-color:var(--brand-dark);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);font-size:16px;line-height:1.8;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--text)}
p{margin:0 0 1em}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 3px rgba(27,95,224,.12)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1280px}}

/* ---------- 顶部活动条 ---------- */
.topbar{height:38px;background:var(--brand-dark);color:#fff;font-size:13px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;gap:16px;min-height:38px}
.topbar-tag{display:inline-flex;align-items:center;gap:6px;background:rgba(18,180,160,.18);color:#7DE4D6;border-radius:999px;padding:2px 12px;font-weight:600;white-space:nowrap}
.topbar-notice{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#D7E3F5}
.topbar-count{white-space:nowrap;color:#D7E3F5}
.topbar-count b{font-variant-numeric:tabular-nums;font-weight:600;color:#FFD79A}
.topbar-close{width:24px;height:24px;border:0;background:transparent;color:#9FB4D2;font-size:16px;line-height:1;cursor:pointer;border-radius:6px}
.topbar-close:hover{color:#fff;background:rgba(255,255,255,.12)}
@media (max-width:767.98px){.topbar-notice{display:none}.topbar-count{font-size:12px}}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);box-shadow:var(--s1);transition:box-shadow .22s ease-out}
.mainnav{position:relative;height:72px;padding:0}
.mainnav .container{display:flex;align-items:center;gap:16px;height:100%}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:17px;letter-spacing:.2px}
.brand:hover{color:var(--brand)}
.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;letter-spacing:.5px;box-shadow:0 6px 16px rgba(27,95,224,.28)}
.brand-text{white-space:nowrap}
.brand-text span{color:var(--brand)}
.navbar-toggler{width:44px;height:44px;padding:0;border:1px solid var(--line-strong);border-radius:10px;background:#fff;color:var(--brand);display:inline-flex;align-items:center;justify-content:center;margin-left:auto}
.navbar-toggler:hover{border-color:var(--brand);background:#F2F7FF}
.nav-wrap{display:flex;align-items:center;gap:32px;flex:1;justify-content:flex-end}
.nav-list{display:flex;align-items:center;gap:4px;list-style:none;padding:0;margin:0 auto 0 24px}
.nav-list a{display:inline-block;padding:10px 14px;border-radius:8px;color:var(--muted);font-size:15px;font-weight:500;position:relative}
.nav-list a:hover{color:var(--brand);background:#F2F7FF}
.nav-list a.active{color:var(--brand);font-weight:600}
.nav-list a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}
.nav-right{display:flex;align-items:center;gap:14px}
.status-badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:#0E8E7E;background:rgba(18,180,160,.10);border-radius:999px;padding:5px 12px;white-space:nowrap}
.status-badge i{font-size:7px}
@media (max-width:991.98px){
  .mainnav{height:60px}
  .nav-wrap{display:none;position:absolute;top:60px;left:0;right:0;flex-direction:column;align-items:stretch;gap:16px;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--s2);padding:16px 24px 24px}
  .nav-wrap.show{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px;margin:0}
  .nav-list a{padding:12px}
  .nav-list a.active::after{display:none}
  .nav-right{flex-direction:column;align-items:stretch;gap:10px}
  .btn-sm-nav{width:100%}
  .status-badge{justify-content:center}
}

/* ---------- 按钮 / 表单 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;text-decoration:none;cursor:pointer;transition:transform .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out,color .2s ease-out}
.btn:focus,.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(27,95,224,.12)}
.btn-brand{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--s2)}
.btn-outline{background:#fff;border-color:var(--line-strong);color:var(--brand)}
.btn-outline:hover{border-color:var(--brand);background:#F2F7FF;color:var(--brand)}
.btn-block{width:100%}
.btn-sm-nav{height:40px;padding:0 18px;font-size:14px}
.btn-ghost{background:transparent;border-color:transparent;color:var(--brand);padding:0;height:auto;text-decoration:underline;text-underline-offset:3px}
.btn-ghost:hover{color:var(--brand-dark)}
@media (max-width:575.98px){.btn{height:44px}}
.form-control,.form-select{height:48px;border:1px solid var(--line-strong);border-radius:var(--r-input);font-size:15px;color:var(--text);padding:0 14px;background-color:#fff;transition:border-color .2s ease-out,box-shadow .2s ease-out}
.form-control::placeholder{color:var(--weak)}
.form-control:focus,.form-select:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,95,224,.12);outline:none}
.chip{display:inline-flex;align-items:center;gap:6px;border-radius:999px;font-size:13px;font-weight:600;padding:5px 12px;white-space:nowrap}
.chip-soft{background:var(--brand-soft);color:var(--brand)}
.chip-teal{background:rgba(18,180,160,.12);color:#0E8E7E}
.chip-amber{background:rgba(255,159,28,.14);color:#B26A00}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--weak);padding:24px 0 0}
.crumb a{color:var(--weak)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#B9C5D6}
.crumb .now{color:var(--muted);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article-wrap{max-width:760px;margin:0 auto;padding:0 24px}
.article-head{padding:20px 0 28px;border-bottom:1px solid var(--line)}
.article-head h1{font-size:32px;letter-spacing:.2px;margin:16px 0 18px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;font-size:13px;color:var(--weak)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--brand);font-size:12px}
@media (max-width:575.98px){.article-head h1{font-size:26px}}

/* ---------- 正文 ---------- */
.article-body{padding:32px 0 8px;font-size:17px;line-height:1.85;color:#26313F}
.article-body p{margin:0 0 1.2em}
.article-body h2{font-size:24px;margin:40px 0 16px;padding-left:12px;border-left:4px solid var(--brand);border-radius:2px}
.article-body h3{font-size:20px;margin:28px 0 12px}
.article-body strong{font-weight:600;color:#152238}
.article-body ul{list-style:none;padding:0;margin:0 0 1.2em}
.article-body ul li{position:relative;padding-left:22px;line-height:1.8;margin-bottom:8px}
.article-body ul li::before{content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:50%;background:rgba(27,95,224,.28)}
.article-body ol{padding-left:1.5em;margin:0 0 1.2em}
.article-body ol li{margin-bottom:8px;line-height:1.8}
.article-body blockquote{margin:0 0 1.2em;padding:16px 20px;background:#F7FAFF;border-left:4px solid var(--brand);border-radius:0 12px 12px 0;color:var(--muted);font-size:15px}
.article-body img{margin:24px auto;border-radius:var(--r-img)}
.article-body a{text-decoration:underline;text-underline-offset:3px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:0 0 1.4em;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.article-body th{background:var(--brand-head);color:var(--brand-dark);font-weight:600;text-align:left;padding:12px 16px;border-bottom:1px solid var(--line)}
.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);color:var(--muted)}
.article-body pre{background:#F7FAFF;border:1px solid var(--line);border-radius:12px;padding:16px 18px;overflow:auto;font-size:14px;line-height:1.7;margin:0 0 1.4em}
.article-body code{font-family:Inter,system-ui,"SFMono-Regular",Menlo,monospace;font-size:14px;color:var(--brand-dark)}
.article-empty{background:#fff;border:1px dashed var(--line-strong);border-radius:var(--r-card);padding:56px 24px;text-align:center;box-shadow:var(--s1);margin:36px 0}
.article-empty i{font-size:30px;color:var(--line-strong)}
.article-empty h2{font-size:22px;margin:16px 0 10px}
.article-empty p{color:var(--muted);font-size:15px;max-width:440px;margin:0 auto 22px}

/* ---------- 文章底部工具行 ---------- */
.article-foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px;padding:22px 0;border-top:1px solid var(--line);margin-top:28px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{padding:6px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--muted);font-size:13px}
.tag:hover{border-color:var(--brand);color:var(--brand);background:#F2F7FF}
.share-row{margin-left:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--weak)}
.share-btn{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--muted);display:inline-flex;align-items:center;justify-content:center}
.share-btn:hover{color:var(--brand);border-color:var(--brand);background:#F2F7FF}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:28px 0 0}
.pager a{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:18px 20px;box-shadow:var(--s1);transition:box-shadow .2s ease-out,transform .2s ease-out}
.pager a:hover{box-shadow:var(--s2);transform:translateY(-2px);color:var(--text)}
.pager .p-label{display:block;font-size:12px;color:var(--weak);margin-bottom:6px}
.pager .p-title{display:block;font-size:15px;font-weight:600;color:var(--text)}
.pager .right{text-align:right}
@media (max-width:575.98px){.pager{grid-template-columns:1fr}}

/* ---------- 板块通用 ---------- */
.section{padding:80px 0}
.section-tight{padding:56px 0}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{font-size:28px}
.section-head h2 .count{color:var(--brand)}
.section-head p{color:var(--muted);font-size:15px;margin:12px 0 0}
@media (max-width:991.98px){.section{padding:64px 0}}
@media (max-width:767.98px){.section{padding:48px 0}.section-head h2{font-size:24px}}

/* ---------- 相关推荐 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--s1);overflow:hidden;transition:box-shadow .22s ease-out,transform .22s ease-out;height:100%}
.rel-card:hover{box-shadow:var(--s2);transform:translateY(-2px)}
.rel-card .thumb{aspect-ratio:16/9;overflow:hidden;background:#EDF2FA}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .24s ease-out}
.rel-card:hover .thumb img{transform:scale(1.03)}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17px;font-weight:600;line-height:1.5}
.rel-body p{font-size:14px;color:var(--muted);margin:0;flex:1}
.rel-meta{font-size:12px;color:var(--weak);display:flex;align-items:center;gap:8px}
.rel-link{font-size:14px;font-weight:600}
@media (max-width:991.98px){.rel-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575.98px){.rel-grid{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--s1);margin-bottom:12px;overflow:hidden}
.faq-acc .accordion-button{position:relative;width:100%;text-align:left;font-size:17px;font-weight:600;color:var(--text);background:#fff;border:0;padding:20px 56px 20px 24px;box-shadow:none;border-radius:0}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand);background:#F7FAFF;box-shadow:inset 3px 0 0 var(--brand)}
.faq-acc .accordion-button:focus{box-shadow:inset 3px 0 0 var(--brand),0 0 0 3px rgba(27,95,224,.12)}
.faq-acc .accordion-button::after{content:"";position:absolute;right:24px;top:50%;width:14px;height:2px;background:var(--brand);transform:translateY(-50%);transition:transform .22s ease-out;background-image:none}
.faq-acc .accordion-button::before{content:"";position:absolute;right:30px;top:50%;width:2px;height:14px;background:var(--brand);transform:translateY(-50%);transition:transform .22s ease-out}
.faq-acc .accordion-button:not(.collapsed)::before{transform:translateY(-50%) rotate(90deg);opacity:0}
.faq-acc .accordion-body{padding:4px 24px 22px;font-size:15px;line-height:1.75;color:var(--muted)}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 80px}
.cta-card{background:#EEF4FF;border:1px solid var(--line);border-radius:20px;box-shadow:var(--s3);padding:44px;display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:start}
.cta-copy h2{font-size:28px;margin:16px 0 20px}
.cta-points{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:#33415A}
.cta-points i{color:var(--teal);font-size:14px;margin-top:5px}
.cta-form{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--s1);padding:24px;display:grid;gap:10px}
.cta-form label{font-size:13px;font-weight:600;color:var(--muted)}
.form-tip{font-size:13px;color:var(--weak);margin:4px 0 0;line-height:1.7}
@media (max-width:991.98px){.cta-card{grid-template-columns:1fr;padding:28px}}
@media (max-width:575.98px){.cta-copy h2{font-size:22px}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:#B9C7DC;padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:16px}
.footer-brand .brand-mark{background:#fff;color:var(--footer);box-shadow:none}
.site-footer p{margin:0;color:#9FB0C9;line-height:1.85;max-width:420px}
.footer-title{color:#fff;font-weight:600;font-size:15px;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{color:#B9C7DC}
.footer-links a:hover{color:#fff}
.footer-contact{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;line-height:1.7}
.footer-contact i{color:#7DE4D6;margin-top:5px;font-size:13px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8FA3BF}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr}}

/* roulang page: category1 */
:root{
  --brand:#1B5FE0;
  --brand-deep:#12439E;
  --brand-soft:#E8F0FF;
  --brand-thead:#EEF4FF;
  --teal:#12B4A0;
  --amber:#FF9F1C;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --text:#1F2937;
  --muted:#5B6B82;
  --weak:#8A97A8;
  --line:#E6ECF5;
  --line-2:#CBD8EE;
  --footer:#0F2544;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --s1:0 1px 2px rgba(18,40,80,.04), 0 8px 24px rgba(18,40,80,.06);
  --s2:0 2px 4px rgba(18,40,80,.05), 0 16px 40px rgba(18,40,80,.10);
  --s3:0 24px 60px rgba(18,40,80,.14);
  --bs-primary:#1B5FE0;
  --bs-primary-rgb:27,95,224;
  --bs-body-color:#1F2937;
  --bs-border-color:#E6ECF5;
  --bs-body-font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --bs-link-color:#1B5FE0;
  --bs-link-hover-color:#12439E;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--brand-deep)}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 3px rgba(27,95,224,.12);border-radius:6px}
.container{max-width:1200px;padding-left:16px;padding-right:16px}
@media (min-width:1400px){.container{max-width:1280px}}
h1,h2,h3,h4{font-weight:600;color:var(--text);margin:0;line-height:1.35}
h1{font-size:38px;letter-spacing:-.4px}
h2{font-size:28px;letter-spacing:-.2px}
h3{font-size:18px}
p{margin:0}
.num{font-variant-numeric:tabular-nums;font-family:Inter,system-ui,-apple-system,sans-serif}

/* ---------- 顶部活动条 ---------- */
.topbar{background:var(--footer);color:#fff;font-size:13px;height:38px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;gap:16px;width:100%}
.topbar-tag{display:inline-flex;align-items:center;gap:6px;background:rgba(18,180,160,.16);color:#7FE7D9;border-radius:999px;padding:3px 12px;font-weight:600;white-space:nowrap}
.topbar-tag i{font-size:7px}
.topbar-note{color:#C6D3E6;flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar-timer{color:#E4EAF4;white-space:nowrap}
.topbar-timer b{color:#FFC46B;font-weight:600}
.topbar-close{background:transparent;border:0;color:#9FB2CC;width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;cursor:pointer;transition:all .2s ease-out}
.topbar-close:hover{color:#fff;background:rgba(255,255,255,.1)}
@media (max-width:767.98px){
  .topbar-note{display:none}
  .topbar-inner{justify-content:space-between;gap:8px}
}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--line);transition:box-shadow .22s ease-out}
.site-header.scrolled{box-shadow:var(--s1)}
.mainnav{padding:0}
.mainnav .container{display:flex;align-items:center;justify-content:space-between;min-height:72px;transition:min-height .22s ease-out}
.site-header.scrolled .mainnav .container{min-height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:19px;letter-spacing:-.2px}
.brand:hover{color:var(--brand-deep)}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;letter-spacing:.5px;box-shadow:var(--s1);font-family:Inter,system-ui,sans-serif}
.brand-text span{color:var(--brand)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;flex:1 1 auto;gap:24px}
.nav-list{display:flex;align-items:center;gap:6px;margin-left:24px}
.nav-list a{display:inline-flex;align-items:center;height:44px;padding:0 14px;border-radius:8px;font-size:15px;font-weight:500;color:var(--muted);position:relative;transition:all .2s ease-out}
.nav-list a:hover{color:var(--brand);background:#F2F7FF}
.nav-list a.active{color:var(--brand);font-weight:600}
.nav-list a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--brand);border-radius:2px}
.nav-right{display:flex;align-items:center;gap:14px}
.status-badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:#0E8C7D;background:rgba(18,180,160,.10);border-radius:999px;padding:5px 12px;white-space:nowrap}
.status-badge i{font-size:7px}
.navbar-toggler{width:44px;height:44px;border:1px solid var(--line-2);border-radius:10px;background:#fff;color:var(--brand);font-size:17px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease-out}
.navbar-toggler:hover{background:#F2F7FF;border-color:var(--brand)}
@media (max-width:991.98px){
  .nav-wrap{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--s2);padding:16px;flex-direction:column;align-items:stretch;gap:12px}
  .nav-wrap.show{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;margin-left:0;gap:2px}
  .nav-list a{height:48px;font-size:16px;padding:0 12px}
  .nav-list a.active::after{display:none}
  .nav-list a.active{background:#F2F7FF}
  .nav-right{flex-direction:column;align-items:stretch;gap:10px;border-top:1px solid var(--line);padding-top:14px}
  .status-badge{align-self:flex-start}
  .btn-sm-nav{width:100%;height:44px}
}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:16px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .22s ease-out;white-space:nowrap}
.btn-brand{background:var(--brand);color:#fff;box-shadow:var(--s1)}
.btn-brand:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--s2)}
.btn-ghost{background:#fff;border-color:var(--line-2);color:var(--brand)}
.btn-ghost:hover{border-color:var(--brand);background:#F2F7FF;color:var(--brand-deep);transform:translateY(-1px)}
.btn-linkline{background:transparent;color:var(--brand);padding:0;height:auto;text-decoration:underline;text-underline-offset:3px}
.btn-linkline:hover{color:var(--brand-deep);text-decoration-color:var(--brand-deep)}
.btn-sm-nav{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
@media (max-width:575.98px){.btn{height:44px;font-size:15px;padding:0 18px}}

/* ---------- 标题带 ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--bg);border-bottom:1px solid var(--line)}
.page-hero::after{content:"";position:absolute;right:-140px;top:-160px;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(27,95,224,.08),rgba(27,95,224,0) 70%);pointer-events:none}
.page-hero .inner{position:relative;display:grid;grid-template-columns:1fr 360px;gap:48px;align-items:center;padding:72px 0 76px;min-height:300px}
.breadcrumb-line{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:14px}
.breadcrumb-line a{color:var(--weak)}
.breadcrumb-line a:hover{color:var(--brand)}
.crumb-sep{color:#C3CEDF}
.crumb-current{color:var(--text)}
.hero-badge{display:inline-flex;align-items:center;gap:6px;background:var(--brand-soft);color:var(--brand-deep);border-radius:999px;padding:5px 14px;font-size:13px;font-weight:600;margin-bottom:16px}
.page-hero h1{font-size:40px;margin-bottom:16px}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{font-size:18px;color:var(--muted);max-width:620px;line-height:1.75}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-figure{border-radius:16px;overflow:hidden;box-shadow:var(--s2);border:1px solid var(--line);background:#fff}
.hero-figure img{width:100%;height:230px;object-fit:cover}
@media (max-width:991.98px){
  .page-hero .inner{grid-template-columns:1fr;gap:28px;padding:48px 0 52px}
  .page-hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-figure img{height:200px}
}
@media (max-width:575.98px){
  .page-hero h1{font-size:26px}
  .hero-actions .btn{width:100%}
}

/* ---------- 板块 ---------- */
.section{padding:88px 0}
.section-tight{padding:72px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--muted);font-size:16px}
@media (max-width:991.98px){.section{padding:64px 0}.section-tight{padding:56px 0}}
@media (max-width:575.98px){.section{padding:48px 0}.section-tight{padding:44px 0}}

/* ---------- 下载前准备 ---------- */
.prep-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.prep-item{display:flex;gap:16px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--s1);padding:22px;transition:all .22s ease-out}
.prep-item:hover{transform:translateY(-2px);box-shadow:var(--s2)}
.prep-ico{flex:0 0 44px;width:44px;height:44px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:18px}
.prep-item h3{font-size:17px;margin-bottom:6px}
.prep-item p{font-size:15px;color:var(--muted);line-height:1.75}
@media (max-width:767.98px){.prep-grid{grid-template-columns:1fr}}

/* ---------- 三步流程 ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--s1);padding:24px;transition:all .22s ease-out}
.step:hover{transform:translateY(-2px);box-shadow:var(--s2)}
.step-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.step-no{flex:0 0 44px;width:44px;height:44px;border-radius:999px;background:var(--brand);color:#fff;font-weight:700;font-size:17px;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums}
.step-head h3{font-size:18px}
.step p{font-size:15px;color:var(--muted);line-height:1.78;margin-bottom:16px}
.step-figure{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line)}
.step-figure img{width:100%;height:150px;object-fit:cover;transition:transform .22s ease-out}
.step:hover .step-figure img{transform:scale(1.03)}
@media (min-width:992px){
  .step:not(:last-child)::after{content:"";position:absolute;top:46px;right:-24px;width:24px;height:2px;background:repeating-linear-gradient(90deg,var(--line-2) 0 6px,transparent 6px 12px)}
}
@media (max-width:991.98px){
  .steps-grid{grid-template-columns:1fr;gap:18px}
  .step-figure img{height:170px}
}

/* ---------- 表格 ---------- */
.table-wrap{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--s1)}
table.req{width:100%;border-collapse:collapse}
.req thead th{background:var(--brand-thead);color:var(--brand-deep);font-size:14px;font-weight:600;text-align:left;padding:16px;border-bottom:1px solid var(--line);white-space:nowrap}
.req tbody td{padding:18px 16px;font-size:15px;color:var(--text);border-bottom:1px solid var(--line);vertical-align:top;line-height:1.7}
.req tbody tr:last-child td{border-bottom:0}
.req tbody tr:hover{background:#F7FAFF}
.req .cell-name{font-weight:600;color:var(--brand-deep);white-space:nowrap}
.req .sub{display:block;font-size:13px;color:var(--weak);margin-top:2px}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;border-radius:999px;padding:3px 10px;background:var(--brand-soft);color:var(--brand-deep)}
.pill-ok{background:rgba(18,180,160,.10);color:#0E8C7D}
.table-note{margin-top:14px;font-size:13px;color:var(--weak)}
@media (max-width:767.98px){
  .table-wrap{background:transparent;border:0;box-shadow:none;border-radius:0}
  .req,.req tbody,.req tr,.req td{display:block;width:100%}
  .req thead{display:none}
  .req tbody tr{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--s1);margin-bottom:16px;padding:6px 4px}
  .req tbody td{display:flex;justify-content:space-between;gap:16px;border-bottom:1px dashed var(--line);padding:12px 16px;font-size:14px}
  .req tbody td:last-child{border-bottom:0}
  .req tbody td::before{content:attr(data-label);color:var(--weak);font-weight:500;flex:0 0 84px}
  .req tbody td.cell-name{font-size:18px;font-weight:600;color:var(--brand-deep);justify-content:flex-start;padding-top:16px}
  .req tbody td.cell-name::before{display:none}
}

/* ---------- 安装包信息 ---------- */
.pkg-grid{display:grid;grid-template-columns:1fr 420px;gap:48px;align-items:start}
.pkg-copy h2{margin-bottom:14px}
.pkg-copy p{color:var(--muted);margin-bottom:16px}
.check-list li{display:flex;gap:12px;font-size:15px;color:var(--muted);margin-bottom:12px;line-height:1.75}
.check-list i{color:var(--teal);margin-top:6px;font-size:13px}
.data-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--s1);padding:24px}
.data-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}
.data-row:last-of-type{border-bottom:0}
.data-label{font-size:14px;color:var(--muted)}
.data-value{font-size:20px;font-weight:600;color:var(--brand-deep)}
.data-value small{font-size:13px;font-weight:500;color:var(--weak);margin-left:4px}
.codeblock{margin:18px 0 0;background:#F7FAFF;border:1px solid var(--line);border-radius:12px;padding:16px;font-size:13px;line-height:1.7;color:#31456B;white-space:pre-wrap;word-break:break-all;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.codeblock span{color:var(--weak)}
@media (max-width:991.98px){.pkg-grid{grid-template-columns:1fr;gap:28px}}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--s1);overflow:hidden;transition:box-shadow .22s ease-out}
.faq-item:hover{box-shadow:var(--s2)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;font-size:17px;font-weight:600;color:var(--text);position:relative;transition:color .2s ease-out}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--brand);border-radius:0 3px 3px 0;opacity:0;transition:opacity .2s ease-out}
.faq-item[open] summary::before{opacity:1}
.faq-item summary:hover{color:var(--brand)}
.faq-icon{flex:0 0 26px;width:26px;height:26px;border-radius:999px;background:var(--brand-soft);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;font-size:12px;transition:transform .22s ease-out}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-body{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--muted)}
@media (max-width:575.98px){
  .faq-item summary{font-size:16px;padding:18px 16px}
  .faq-body{padding:0 16px 18px;font-size:14px}
}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand-thead);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--s3);padding:40px;display:grid;grid-template-columns:1fr 400px;gap:40px;align-items:center}
.cta-band h2{margin-bottom:12px}
.cta-band .lead{color:var(--muted);font-size:16px;margin-bottom:20px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:var(--text);margin-bottom:10px;line-height:1.7}
.cta-points i{color:var(--brand);margin-top:6px;font-size:13px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--s1);padding:24px}
.form-card h3{font-size:17px;margin-bottom:16px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--muted);font-weight:500;margin-bottom:6px}
.form-control{width:100%;height:48px;border:1px solid var(--line-2);border-radius:var(--r-btn);padding:0 14px;font-size:15px;color:var(--text);background:#fff;transition:all .2s ease-out;-webkit-appearance:none;appearance:none}
.form-control::placeholder{color:var(--weak)}
.form-control:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,95,224,.12)}
select.form-control{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%235B6B82'%3E%3Cpath d='M8 11 3 5h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;background-size:14px;padding-right:38px}
.form-tip{margin-top:12px;font-size:13px;color:var(--weak);line-height:1.6}
@media (max-width:991.98px){
  .cta-band{grid-template-columns:1fr;gap:28px;padding:28px}
}
@media (max-width:575.98px){
  .cta-band{padding:22px}
  .form-card{padding:18px}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:#B9C7DC;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:16px}
.footer-brand:hover{color:#fff}
.site-footer p{font-size:14px;line-height:1.8;color:#9FB0CA}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:#B9C7DC;font-size:14px}
.footer-links a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#9FB0CA;margin-bottom:12px;line-height:1.7}
.footer-contact i{margin-top:5px;color:#6C87AE;font-size:13px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8FA2BE}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media (max-width:575.98px){
  .site-footer{padding-top:44px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category2 */
:root{
  --bs-primary:#1B5FE0;
  --bs-primary-rgb:27,95,224;
  --bs-link-color:#1B5FE0;
  --bs-link-hover-color:#12439E;
  --brand:#1B5FE0;
  --brand-dark:#12439E;
  --brand-soft:#E8F0FF;
  --brand-head:#EEF4FF;
  --teal:#12B4A0;
  --teal-dark:#0E7F72;
  --amber:#FF9F1C;
  --amber-dark:#9A5A00;
  --danger:#E5484D;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --ink:#1F2937;
  --ink-2:#5B6B82;
  --ink-3:#8A97A8;
  --line:#E6ECF5;
  --line-strong:#CBD8EE;
  --footer-bg:#0F2544;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --s1:0 1px 2px rgba(18,40,80,.04),0 8px 24px rgba(18,40,80,.06);
  --s2:0 2px 4px rgba(18,40,80,.05),0 16px 40px rgba(18,40,80,.10);
  --s3:0 24px 60px rgba(18,40,80,.14);
  --ease:cubic-bezier(.33,.1,.2,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;letter-spacing:-.011em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.num,.stat-num,.tier-price .num,.topbar-count{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px}

.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
@media (min-width:1400px){.container{max-width:1280px}}

/* ============ 顶部活动条 ============ */
.topbar{background:var(--brand-dark);color:#fff;font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px}
.topbar-status{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.14);border-radius:999px;padding:4px 11px;font-weight:600;white-space:nowrap}
.topbar-status i{color:#4FE0CE;font-size:7px}
.topbar-notice{flex:1;text-align:center;color:#D8E3F5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-count{display:inline-flex;align-items:center;gap:8px;font-weight:600;white-space:nowrap}
.topbar-count b{color:var(--amber);font-weight:600}
.topbar-close{background:transparent;border:0;color:#B9C7DC;width:30px;height:30px;border-radius:8px;cursor:pointer;transition:.2s var(--ease)}
.topbar-close:hover{background:rgba(255,255,255,.12);color:#fff}
@media (max-width:767.98px){.topbar-notice{display:none}}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);box-shadow:0 1px 2px rgba(18,40,80,.04);transition:box-shadow .2s var(--ease)}
.site-header.is-scrolled{box-shadow:var(--s1)}
.mainnav{padding:0;background:transparent}
.mainnav .container{display:flex;align-items:center;gap:24px;min-height:72px;position:relative;transition:min-height .2s var(--ease)}
.site-header.is-scrolled .mainnav .container{min-height:60px}
.navbar.navbar{background:transparent}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--ink);white-space:nowrap}
.brand:hover{color:var(--ink)}
.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:700;letter-spacing:.5px;flex:none}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.01em}
.brand-text span{color:var(--brand)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;flex:1;gap:24px}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-list a{display:block;padding:10px 14px;border-radius:8px;font-size:15px;font-weight:500;color:var(--ink-2);position:relative;transition:.2s var(--ease)}
.nav-list a:hover{color:var(--brand);background:#F2F7FF}
.nav-list a.active{color:var(--brand);font-weight:600}
.nav-list a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}
.nav-right{display:flex;align-items:center;gap:12px}
.status-badge{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;color:var(--teal-dark);background:rgba(18,180,160,.1);border-radius:999px;padding:6px 12px;white-space:nowrap}
.status-badge i{font-size:7px}
.btn-sm-nav{height:40px;padding:0 18px;font-size:14px}
.navbar-toggler{width:44px;height:44px;border:1px solid var(--line-strong);border-radius:10px;background:#fff;color:var(--ink);display:grid;place-items:center;cursor:pointer;transition:.2s var(--ease)}
.navbar-toggler:hover{border-color:var(--brand);color:var(--brand);background:#F2F7FF}
@media (max-width:991.98px){
  .mainnav .container{justify-content:space-between;min-height:60px}
  .nav-wrap{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--s2);padding:16px 24px 20px;flex-direction:column;align-items:stretch;gap:16px;border-radius:0 0 14px 14px}
  .nav-wrap.show{display:flex}
  .nav-list{flex-direction:column;gap:2px}
  .nav-list a{padding:12px 14px}
  .nav-list a.active::after{left:14px;right:auto;width:28px;bottom:8px}
  .nav-right{flex-direction:column;align-items:stretch;gap:10px}
  .status-badge{justify-content:center}
  .btn-sm-nav{width:100%;height:46px}
}

/* ============ 按钮 / 徽章 ============ */
.btn{border-radius:var(--r-btn);height:48px;padding:0 24px;font-size:15px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;transition:.2s var(--ease);box-shadow:none}
.btn:focus,.btn:focus-visible{box-shadow:0 0 0 3px rgba(27,95,224,.12);outline:2px solid var(--brand);outline-offset:2px}
.btn-brand{background:var(--brand);color:#fff}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--s2)}
.btn-brand:active{transform:translateY(0)}
.btn-outline-brand{background:#fff;border-color:var(--line-strong);color:var(--brand)}
.btn-outline-brand:hover{border-color:var(--brand);background:#F2F7FF;color:var(--brand-dark)}
.btn-block{width:100%}
@media (max-width:575.98px){.btn{height:44px;padding:0 18px;font-size:14.5px}}

.badge{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;border-radius:999px;padding:5px 12px;line-height:1.4}
.badge-brand{background:var(--brand-soft);color:var(--brand-dark)}
.badge-ghost{background:#fff;color:var(--brand);border:1px solid var(--line-strong)}
.badge-amber{background:rgba(255,159,28,.14);color:var(--amber-dark)}
.badge-teal{background:rgba(18,180,160,.1);color:var(--teal-dark)}

/* ============ 标题带 ============ */
.page-hero{
  padding:56px 0 64px;
  background:
    radial-gradient(560px 320px at 6% 0%, rgba(27,95,224,.08), transparent 70%),
    radial-gradient(420px 260px at 96% 100%, rgba(18,180,160,.06), transparent 72%),
    var(--bg);
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center}
.hero-media{border-radius:16px;overflow:hidden;box-shadow:var(--s2);position:relative}
.hero-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;border-radius:16px}
.hero-copy .badge-ghost{margin-bottom:16px}
.hero-copy h1{font-size:clamp(28px,3.2vw,40px);line-height:1.35;font-weight:700;letter-spacing:-.02em}
.hero-copy .lead{margin-top:16px;font-size:17px;line-height:1.8;color:var(--ink-2);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-stats{display:flex;margin-top:32px;padding-top:22px;border-top:1px solid var(--line)}
.stat-item{flex:1;padding-right:20px}
.stat-item + .stat-item{border-left:1px solid var(--line);padding-left:20px}
.stat-num{font-size:24px;font-weight:600;color:var(--ink);line-height:1.3}
.stat-label{font-size:13px;color:var(--ink-3);line-height:1.6}
@media (max-width:991.98px){
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-media{order:-1}
  .hero-media img{aspect-ratio:16/9}
}
@media (max-width:575.98px){
  .page-hero{padding:40px 0 48px}
  .hero-stats{flex-direction:column;gap:14px}
  .stat-item{padding:0}
  .stat-item + .stat-item{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:14px}
}

/* ============ 三栏目录 + 内容流 ============ */
.anchor-layout{display:grid;grid-template-columns:3fr 9fr;gap:40px;align-items:start;padding:72px 0 0}
.toc{position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--s1)}
.toc-title{font-size:12.5px;font-weight:600;color:var(--ink-3);letter-spacing:.08em;margin-bottom:12px}
.toc-list{display:flex;flex-direction:column;gap:4px}
.toc-list a{display:block;padding:9px 12px;border-left:3px solid transparent;border-radius:8px;font-size:15px;color:var(--ink-2);transition:.2s var(--ease)}
.toc-list a:hover{background:#F2F7FF;color:var(--brand)}
.toc-list a.active{background:var(--brand-soft);color:var(--brand);font-weight:600;border-left-color:var(--brand)}
@media (max-width:991.98px){
  .anchor-layout{grid-template-columns:1fr;gap:24px;padding:40px 0 0}
  .toc{position:static;padding:10px 12px}
  .toc-title{display:none}
  .toc-list{flex-direction:row;gap:8px;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin}
  .toc-list a{border-left:0;border-bottom:2px solid transparent;border-radius:8px;white-space:nowrap;padding:8px 12px;font-size:14px}
  .toc-list a.active{border-left:0;border-bottom-color:var(--brand)}
}

.flow{min-width:0}
.sec{padding:0}
.sec + .sec{margin-top:64px}
.sec + .sec::before{content:"";display:block;width:64px;height:2px;border-radius:2px;background:rgba(27,95,224,.2);margin-bottom:40px}
.sec-head{margin-bottom:28px}
.sec-title{font-size:26px;line-height:1.4;letter-spacing:-.015em}
.sec-desc{margin-top:12px;font-size:15.5px;line-height:1.8;color:var(--ink-2);max-width:760px}

/* 等级卡组 */
.tier-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:start}
.tier-side{display:grid;gap:24px}
.tier-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--s1);transition:.2s var(--ease)}
.tier-card:hover{box-shadow:var(--s2);transform:translateY(-2px)}
.tier-card--feature{border-color:var(--brand);border-top:3px solid var(--brand)}
.tier-top{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.tier-name{font-size:18px;line-height:1.5;margin-bottom:14px}
.tier-list{display:grid;gap:10px;margin-bottom:18px}
.tier-list li{display:flex;gap:9px;font-size:14.5px;line-height:1.7;color:var(--ink-2)}
.tier-list li i{color:var(--teal);font-size:12px;margin-top:6px;flex:none}
.tier-price{display:flex;align-items:baseline;gap:6px}
.tier-price .num{font-size:30px;font-weight:600;color:var(--brand-dark);line-height:1.2}
.tier-price .unit{font-size:14px;color:var(--ink-2);font-weight:500}
.tier-note{margin-top:6px;font-size:13px;color:var(--ink-3);line-height:1.7}
.tier-card--feature .btn{margin-top:18px}
@media (max-width:991.98px){
  .tier-grid{grid-template-columns:1fr}
}
@media (max-width:575.98px){
  .tier-card{padding:20px}
}

/* 图文块 */
.media-block{display:grid;grid-template-columns:5fr 7fr;gap:28px;align-items:center;margin-top:28px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--s1);transition:.2s var(--ease)}
.media-block:hover{box-shadow:var(--s2)}
.media-block img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;border-radius:var(--r-img)}
.media-block h3{font-size:18px;margin-bottom:10px}
.media-block p{font-size:15px;line-height:1.8;color:var(--ink-2)}
@media (max-width:767.98px){
  .media-block{grid-template-columns:1fr;gap:16px;padding:16px}
}

/* 权益矩阵 */
.matrix-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.matrix-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:18px 20px;box-shadow:var(--s1);transition:.2s var(--ease)}
.matrix-item:hover{box-shadow:var(--s2);border-color:var(--line-strong);transform:translateY(-2px)}
.matrix-head{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.matrix-ico{width:38px;height:38px;border-radius:11px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:15px;flex:none}
.matrix-name{font-size:16px;font-weight:600;line-height:1.5}
.matrix-values{display:flex;flex-wrap:wrap;gap:8px}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;border-radius:999px;padding:5px 11px;background:#F7FAFF;color:var(--ink-2);border:1px solid var(--line)}
.pill i{font-size:10px;color:var(--teal)}
.pill--key{background:var(--brand-soft);border-color:transparent;color:var(--brand-dark)}
@media (max-width:767.98px){
  .matrix-grid{grid-template-columns:1fr}
}

/* 要点列表 */
.point-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.point-item{display:flex;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--s1);transition:.2s var(--ease)}
.point-item:hover{box-shadow:var(--s2);transform:translateY(-2px)}
.point-ico{width:40px;height:40px;border-radius:var(--r-img);background:rgba(18,180,160,.1);color:var(--teal-dark);display:grid;place-items:center;flex:none;font-size:15px}
.point-item h3{font-size:16px;margin-bottom:6px}
.point-item p{font-size:14.5px;line-height:1.75;color:var(--ink-2)}
@media (max-width:767.98px){
  .point-grid{grid-template-columns:1fr}
}

/* FAQ */
.accordion-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:12px;box-shadow:var(--s1);overflow:hidden;transition:.2s var(--ease)}
.accordion-item:hover{box-shadow:var(--s2)}
.accordion-button{width:100%;text-align:left;font-size:17px;font-weight:600;color:var(--ink);background:#fff;border:0;border-left:3px solid transparent;padding:18px 20px;display:flex;align-items:center;gap:16px;cursor:pointer;transition:.2s var(--ease);box-shadow:none}
.accordion-button:not(.collapsed){color:var(--brand);border-left-color:var(--brand)}
.accordion-button:focus{outline:none;box-shadow:0 0 0 3px rgba(27,95,224,.12)}
.accordion-button::after{content:"+";margin-left:auto;width:28px;height:28px;border-radius:9px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:17px;line-height:1;font-weight:600;flex:none;transition:.2s var(--ease);background-image:none}
.accordion-button:not(.collapsed)::after{content:"−";background:var(--brand);color:#fff}
.accordion-body{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-2)}
@media (max-width:575.98px){
  .accordion-button{font-size:16px;padding:16px}
  .accordion-body{padding:0 16px 18px}
}

/* ============ 开通 CTA ============ */
.cta-section{padding:80px 0}
.cta-band{background:var(--brand-head);border-radius:20px;padding:48px;box-shadow:var(--s3)}
.cta-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center}
.cta-band h2{font-size:26px;line-height:1.45}
.cta-band .cta-sub{margin-top:12px;font-size:15.5px;line-height:1.8;color:var(--ink-2);max-width:520px}
.cta-points{display:grid;gap:12px;margin-top:22px}
.cta-points li{display:flex;gap:10px;font-size:15px;line-height:1.7;color:var(--ink-2)}
.cta-points i{color:var(--brand);font-size:14px;margin-top:5px;flex:none}
.form-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--s2)}
.form-label{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:6px}
.form-control,.form-select{height:48px;border-radius:var(--r-btn);border:1px solid var(--line-strong);font-size:15px;color:var(--ink);padding:0 14px;transition:.2s var(--ease);background-color:#fff}
.form-control::placeholder{color:var(--ink-3)}
.form-control:focus,.form-select:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,95,224,.12);outline:none}
.form-field{margin-bottom:16px}
.form-note{margin-top:12px;font-size:13px;line-height:1.7;color:var(--ink-3)}
@media (max-width:991.98px){
  .cta-section{padding:56px 0}
  .cta-band{padding:28px}
  .cta-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:575.98px){
  .cta-band{padding:22px}
  .cta-band h2{font-size:22px}
  .form-card{padding:20px}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer-bg);color:#B9C7DC;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--brand);width:34px;height:34px;border-radius:9px;font-size:13px}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:700}
.site-footer p{font-size:14px;line-height:1.85;color:#9FB2CC}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{color:#B9C7DC;font-size:14px}
.footer-links a:hover{color:#fff}
.footer-contact{display:grid;gap:12px}
.footer-contact li{font-size:14px;line-height:1.7;color:#9FB2CC}
.footer-contact i{color:#6E86A8;margin-right:8px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#8CA0BC}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding-bottom:36px}
}
@media (max-width:575.98px){
  .site-footer{padding:48px 0 0}
  .footer-grid{grid-template-columns:1fr}
}