/* roulang page: index */
:root{
  --brand-600:#1467D6;
  --brand-700:#0B4DA2;
  --brand-500:#2E86F0;
  --brand-100:#E7F1FE;
  --cyan-500:#17C3CE;
  --cyan-050:#D9F7F8;
  --coral-500:#FF7A45;
  --coral-050:#FFEDE4;
  --text-main:#10233A;
  --text-sub:#5B6E85;
  --text-weak:#8A9AAF;
  --line:#E4EDF7;
  --bg:#FFFFFF;
  --bg-soft:#F5F8FC;
  --success:#17A673;
  --warn:#E9A21B;
  --danger:#E04B4B;
  --radius-card:14px;
  --radius-sub:10px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-sm:0 2px 8px rgba(16,45,80,.06);
  --shadow-md:0 8px 28px rgba(16,45,80,.08);
  --shadow-lg:0 18px 48px rgba(16,45,80,.12);
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text-main);
  background:var(--bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--brand-700);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px;}
a:focus-visible,button:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(20,103,214,.28);border-radius:8px;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--text-main);letter-spacing:.01em;}
h1{font-size:44px;}
h2{font-size:32px;}
h3{font-size:22px;}
h4{font-size:18px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-soft{background:var(--bg-soft);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px;}
.section-head h2{margin-top:10px;}
.section-lead{max-width:520px;color:var(--text-sub);font-size:16px;line-height:1.8;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-600);letter-spacing:.08em;}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--cyan-500);}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-600);white-space:nowrap;}
.text-link i{font-size:12px;transition:transform .2s ease-out;}
.text-link:hover i{transform:translateX(3px);}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);background:var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:600;}
.badge-hot{background:var(--coral-050);color:var(--coral-500);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease-out,background-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--coral-500);color:#fff;}
.btn-primary:hover{background:#F2662F;color:#fff;}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-500);}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);}
.btn-sm{height:38px;padding:0 16px;font-size:15px;}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden;}

/* ============ 头部 ============ */
.site-header{position:sticky;top:0;z-index:70;background:#fff;}
.brand-bar{height:var(--header-h);display:flex;align-items:center;border-bottom:1px solid var(--line);background:rgba(255,255,255,.97);transition:height .22s ease-out,box-shadow .22s ease-out;}
.site-header.is-scrolled .brand-bar{box-shadow:var(--shadow-sm);}
.brand-inner{display:flex;align-items:center;gap:24px;height:100%;}
.logo{display:inline-flex;align-items:center;gap:11px;color:var(--text-main);font-weight:700;font-size:19px;letter-spacing:.01em;}
.logo:hover{color:var(--brand-700);text-decoration:none;}
.logo-mark{width:38px;height:38px;flex:0 0 38px;border-radius:11px;background:linear-gradient(135deg,var(--brand-600),var(--cyan-500));color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;letter-spacing:.04em;}
.brand-links{margin-left:auto;display:flex;align-items:center;gap:22px;}
.brand-links a{font-size:14.5px;color:var(--text-sub);font-weight:500;}
.brand-links a:hover{color:var(--brand-600);}
.brand-tools{display:flex;align-items:center;gap:12px;}
.icon-btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--text-sub);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;}
.icon-btn:hover{color:var(--brand-600);border-color:var(--brand-500);background:var(--brand-100);}
.menu-toggle{display:none;width:40px;height:40px;border-radius:var(--radius-sub);border:1px solid var(--line);background:#fff;color:var(--text-main);cursor:pointer;align-items:center;justify-content:center;}
.channel-bar{background:var(--bg-soft);border-bottom:1px solid var(--line);}
.channel-bar,.channel-inner{height:52px;}
.channel-inner{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel{flex:0 0 auto;padding:7px 16px;border-radius:8px;font-size:15px;font-weight:600;color:var(--text-sub);transition:background-color .18s ease-out,color .18s ease-out;}
.channel:hover{color:var(--brand-700);background:#fff;text-decoration:none;}
.channel.active{background:var(--brand-100);color:var(--brand-600);box-shadow:inset 0 -2px 0 var(--brand-600);}
.anchor-nav{position:sticky;top:calc(var(--header-h) + 52px);z-index:60;background:#fff;border-bottom:1px solid var(--line);}
.anchor-inner{display:flex;align-items:center;gap:6px;height:44px;overflow-x:auto;scrollbar-width:none;}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-inner a{flex:0 0 auto;font-size:14px;font-weight:600;color:var(--text-sub);padding:4px 12px;border-radius:var(--radius-pill);transition:background-color .18s ease-out,color .18s ease-out;}
.anchor-inner a:hover{color:var(--brand-700);background:var(--bg-soft);text-decoration:none;}
.anchor-inner a.is-current{background:var(--brand-100);color:var(--brand-600);}

/* ============ 首屏 ============ */
.hero{padding:56px 0 76px;background:linear-gradient(180deg,#F5F8FC 0%,#FFFFFF 78%);}
.hero-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:56px;align-items:center;}
.hero-media{position:relative;}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-card);box-shadow:var(--shadow-md);}
.hero-float{position:absolute;right:18px;bottom:-22px;display:flex;align-items:center;gap:12px;background:var(--cyan-050);border:1px solid rgba(23,195,206,.32);border-radius:var(--radius-sub);padding:12px 18px;box-shadow:var(--shadow-sm);}
.hero-float-num{font-size:26px;font-weight:700;color:#0E8F99;line-height:1;}
.hero-float-txt{font-size:13.5px;color:#0E7B84;font-weight:600;line-height:1.4;}
.hero-copy h1{margin:16px 0 18px;font-size:44px;font-weight:700;line-height:1.28;}
.hero-sub{font-size:18px;color:var(--text-sub);line-height:1.75;max-width:460px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 26px;}
.trust-row{display:flex;flex-wrap:wrap;gap:24px;}
.trust-row li{display:flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--text-sub);}
.trust-row i{width:26px;height:26px;border-radius:50%;background:var(--brand-100);color:var(--brand-600);display:flex;align-items:center;justify-content:center;font-size:12px;}

/* ============ 卖点 ============ */
.sell-row{display:grid;grid-template-columns:5fr 7fr;gap:28px;margin-bottom:28px;align-items:stretch;}
.sell-row-rev{grid-template-columns:7fr 5fr;}
.sell-narrow{padding:32px 30px;display:flex;flex-direction:column;gap:12px;transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;}
.sell-narrow:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-100);}
.sell-narrow .num{font-size:13px;font-weight:700;color:var(--cyan-500);letter-spacing:.14em;}
.sell-narrow p{color:var(--text-sub);font-size:16px;line-height:1.8;}
.sell-narrow .text-link{margin-top:auto;}
.sell-wide{display:grid;grid-template-columns:46% 1fr;padding:0;transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;}
.sell-wide:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-100);}
.sell-wide img{width:100%;height:100%;min-height:230px;object-fit:cover;border-radius:0;}
.sell-wide-body{padding:30px 32px;display:flex;flex-direction:column;justify-content:center;gap:12px;}
.sell-wide-body p{color:var(--text-sub);font-size:16px;line-height:1.8;}

/* ============ 演示 ============ */
.demo-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:52px;align-items:start;}
.demo-copy h2{margin:14px 0 16px;}
.demo-copy > p{color:var(--text-sub);font-size:16.5px;line-height:1.85;}
.check-list{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--text-sub);line-height:1.7;}
.check-list i{color:var(--success);margin-top:6px;font-size:14px;}
.demo-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-md);padding:26px;}
.demo-tabs{display:flex;gap:8px;background:var(--bg-soft);padding:6px;border-radius:var(--radius-sub);margin-bottom:22px;}
.tab-btn{flex:1;height:40px;border:none;background:transparent;border-radius:8px;font-size:15px;font-weight:600;color:var(--text-sub);cursor:pointer;transition:background-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out;}
.tab-btn:hover{color:var(--brand-700);}
.tab-btn.is-active{background:#fff;color:var(--brand-600);box-shadow:var(--shadow-sm);}
.tab-panel{display:none;}
.tab-panel.is-active{display:block;animation:fadeIn .24s ease-out;}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}
.step-item{display:grid;grid-template-columns:38px 1fr 92px;gap:16px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line);}
.step-item:last-child{border-bottom:none;}
.step-no{width:38px;height:38px;border-radius:var(--radius-sub);background:var(--brand-100);color:var(--brand-600);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;}
.step-item h4{font-size:16.5px;margin-bottom:4px;}
.step-item p{font-size:14.5px;color:var(--text-sub);line-height:1.7;}
.step-thumb{width:92px;height:62px;border-radius:8px;object-fit:cover;background:var(--brand-100);}
.demo-hint{font-size:13.5px;color:var(--text-weak);margin-bottom:14px;}

/* ============ 证据 ============ */
.proof-band{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;background:var(--brand-100);border-radius:var(--radius-card);padding:36px 40px;}
.stat{display:flex;flex-direction:column;gap:6px;}
.stat-num{font-size:40px;font-weight:700;color:var(--brand-700);line-height:1;letter-spacing:-.01em;}
.stat-unit{font-size:15px;font-weight:600;color:var(--brand-600);margin-left:6px;}
.stat p{font-size:14.5px;color:var(--text-sub);}
.quotes{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:28px;}
.quote{background:#fff;border:1px solid var(--line);border-left:3px solid var(--brand-500);border-radius:var(--radius-sub);padding:22px 24px;}
.quote p{font-size:16px;color:var(--text-main);line-height:1.8;}
.quote footer{margin-top:14px;font-size:13.5px;color:var(--text-weak);}

/* ============ 价格 ============ */
.price-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;align-items:stretch;}
.price-card{padding:34px 32px;display:flex;flex-direction:column;gap:18px;position:relative;transition:transform .22s ease-out,box-shadow .22s ease-out;}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.price-card.is-pro{border-top:3px solid var(--brand-600);}
.price-tag{position:absolute;top:18px;right:18px;background:var(--coral-050);color:var(--coral-500);font-size:12.5px;font-weight:700;padding:4px 12px;border-radius:var(--radius-pill);}
.price-name{font-size:19px;font-weight:700;}
.price-desc{font-size:14.5px;color:var(--text-sub);}
.price-num{display:flex;align-items:baseline;gap:6px;color:var(--brand-700);}
.price-num strong{font-size:40px;font-weight:700;line-height:1;letter-spacing:-.01em;}
.price-num span{font-size:14.5px;color:var(--text-sub);}
.price-list{display:flex;flex-direction:column;gap:12px;margin:4px 0 8px;}
.price-list li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:var(--text-sub);line-height:1.7;}
.price-list i{color:var(--brand-500);font-size:13px;margin-top:7px;}
.price-card .btn{margin-top:auto;width:100%;}
.price-note{margin-top:22px;font-size:13.5px;color:var(--text-weak);text-align:center;}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:7fr 5fr;gap:28px;align-items:start;}
.news-lead{display:block;color:inherit;transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;}
.news-lead:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-100);text-decoration:none;color:inherit;}
.news-lead img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.news-lead-body{padding:24px 26px;display:flex;flex-direction:column;gap:12px;}
.news-lead-body h3{font-size:21px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-lead-body p{font-size:15px;color:var(--text-sub);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-weak);}
.news-side{display:flex;flex-direction:column;gap:14px;}
.news-list{display:flex;flex-direction:column;gap:14px;}
.news-list li{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;}
.news-list li:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brand-100);}
.news-list a{display:grid;grid-template-columns:96px 1fr;gap:14px;align-items:center;padding:14px;color:inherit;text-decoration:none;}
.news-list a:hover{text-decoration:none;color:inherit;}
.news-thumb{width:96px;height:64px;object-fit:cover;border-radius:10px;background:var(--brand-100);}
.news-item-body h4{font-size:15.5px;line-height:1.55;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.news-side-hint{font-size:14px;color:var(--text-weak);padding:8px 2px;}
.empty-state{min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);padding:40px 24px;text-align:center;}
.empty-state i{font-size:30px;color:var(--brand-500);}
.empty-state p{font-size:15px;color:var(--text-sub);}
.empty-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;padding:0 24px;}
.accordion{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:8px 24px;}
.acc-item{border-bottom:1px solid var(--line);}
.acc-item:last-child{border-bottom:none;}
.acc-head{width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;background:transparent;border:none;padding:14px 0;text-align:left;font-size:17px;font-weight:700;color:var(--text-main);cursor:pointer;}
.acc-head i{flex:0 0 auto;font-size:14px;color:var(--brand-600);transition:transform .22s ease-out;}
.acc-item.is-open .acc-head i{transform:rotate(45deg);}
.acc-body{display:none;background:var(--bg-soft);border-radius:var(--radius-sub);padding:16px 18px;margin-bottom:16px;}
.acc-item.is-open .acc-body{display:block;}
.acc-body p{font-size:15.5px;color:var(--text-sub);line-height:1.85;}

/* ============ 底部转化 ============ */
.cta-band{background:var(--brand-100);padding:64px 0;}
.cta-inner{display:grid;grid-template-columns:1fr 300px;gap:44px;align-items:center;}
.cta-inner h2{margin-bottom:14px;}
.cta-inner p{font-size:16.5px;color:var(--text-sub);margin-bottom:26px;max-width:560px;}
.cta-inner img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-card);box-shadow:var(--shadow-md);}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding-top:64px;}
.footer-top{display:grid;grid-template-columns:1.1fr 2fr;gap:56px;padding-bottom:48px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand > p{font-size:15px;color:var(--text-sub);max-width:280px;line-height:1.8;}
.footer-contact{margin-top:20px;display:flex;flex-direction:column;gap:10px;}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-sub);}
.footer-contact i{color:var(--brand-500);font-size:13px;}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;}
.footer-cols h4{font-size:15.5px;margin-bottom:16px;}
.footer-cols ul{display:flex;flex-direction:column;gap:11px;}
.footer-cols a{font-size:14.5px;color:var(--text-sub);}
.footer-cols a:hover{color:var(--brand-600);}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0 28px;}
.footer-bottom-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;}
.footer-bottom p{font-size:13.5px;color:var(--text-weak);}
.to-top{font-size:13.5px;color:var(--text-sub);display:inline-flex;align-items:center;gap:6px;}
.to-top:hover{color:var(--brand-600);}

/* ============ 浮动 CTA ============ */
.float-cta{position:fixed;right:24px;bottom:28px;z-index:80;display:inline-flex;align-items:center;gap:10px;height:50px;padding:0 24px;border-radius:var(--radius-pill);background:var(--coral-500);color:#fff;font-size:15.5px;font-weight:600;box-shadow:0 12px 30px rgba(255,122,69,.35);opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .24s ease-out,transform .24s ease-out,visibility .24s ease-out,background-color .18s ease-out;}
.float-cta:hover{background:#F2662F;color:#fff;text-decoration:none;}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta i{font-size:12px;}

/* ============ 移动抽屉 ============ */
.drawer{position:fixed;inset:0;z-index:120;background:rgba(16,35,58,.42);opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s ease-out;}
.drawer.is-open{opacity:1;visibility:visible;}
.drawer-panel{position:absolute;top:0;right:0;width:min(320px,86%);height:100%;background:#fff;padding:20px;display:flex;flex-direction:column;gap:18px;transform:translateX(100%);transition:transform .26s ease-out;overflow-y:auto;}
.drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-head span{font-size:16px;font-weight:700;}
.drawer-close{width:38px;height:38px;border-radius:var(--radius-sub);border:1px solid var(--line);background:#fff;font-size:18px;color:var(--text-sub);cursor:pointer;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{padding:12px 14px;border-radius:var(--radius-sub);font-size:15.5px;font-weight:600;color:var(--text-sub);}
.drawer-nav a:hover{background:var(--bg-soft);color:var(--brand-700);text-decoration:none;}
.drawer-nav a.active{background:var(--brand-100);color:var(--brand-600);}

[id]{scroll-margin-top:170px;}

@media (max-width:1199px){
  .hero-grid{gap:40px;}
  h1,.hero-copy h1{font-size:38px;}
  .demo-grid{gap:36px;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  h1,.hero-copy h1{font-size:34px;}
  h2{font-size:27px;}
  .brand-links{display:none;}
  .menu-toggle{display:flex;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-copy h1{margin-top:14px;}
  .sell-row,.sell-row-rev{grid-template-columns:1fr;}
  .sell-wide{grid-template-columns:1fr;}
  .sell-wide img{min-height:200px;aspect-ratio:16/9;}
  .demo-grid{grid-template-columns:1fr;}
  .proof-band{grid-template-columns:1fr 1fr;padding:28px;}
  .quotes{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;}
  .cta-inner img{display:none;}
  .footer-top{grid-template-columns:1fr;gap:36px;}
  .footer-cols{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  h1,.hero-copy h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .hero{padding:36px 0 56px;}
  .hero-sub{font-size:16.5px;}
  .logo{font-size:16px;}
  .logo-mark{width:34px;height:34px;flex:0 0 34px;font-size:12px;}
  .brand-inner{gap:12px;}
  .brand-tools .btn-sm{padding:0 14px;font-size:14px;}
  .price-grid{grid-template-columns:1fr;}
  .proof-band{grid-template-columns:1fr;gap:20px;}
  .footer-cols{grid-template-columns:1fr;}
  .accordion{padding:4px 16px;}
  .step-item{grid-template-columns:34px 1fr;gap:12px;}
  .step-thumb{display:none;}
  .float-cta{left:16px;right:16px;bottom:0;height:56px;justify-content:center;border-radius:14px 14px 0 0;padding-bottom:env(safe-area-inset-bottom);}
  .site-footer{padding-bottom:64px;}
  .faq-wrap{padding:0 16px;}
}
@media (max-width:520px){
  h1,.hero-copy h1{font-size:27px;}
  .stat-num{font-size:32px;}
  .price-num strong{font-size:34px;}
  .hero-float{right:10px;bottom:-18px;padding:10px 14px;}
  .hero-float-num{font-size:22px;}
}

/* roulang page: article */
:root{
  --brand-600:#1467D6;
  --brand-700:#0B4DA2;
  --brand-500:#2E86F0;
  --brand-100:#E7F1FE;
  --cyan-500:#17C3CE;
  --cyan-050:#D9F7F8;
  --coral-500:#FF7A45;
  --coral-050:#FFEDE4;
  --text-1:#10233A;
  --text-2:#5B6E85;
  --text-3:#8A9AAF;
  --line:#E4EDF7;
  --bg:#FFFFFF;
  --bg-soft:#F5F8FC;
  --ok:#17A673;
  --warn:#E9A21B;
  --err:#E04B4B;
  --radius-card:14px;
  --radius-sm:10px;
  --radius-img:12px;
  --shadow-sm:0 2px 8px rgba(16,45,80,.06);
  --shadow-md:0 8px 28px rgba(16,45,80,.08);
  --shadow-lg:0 18px 48px rgba(16,45,80,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
  font-size:17px;line-height:1.85;color:var(--text-1);background:var(--bg);
  letter-spacing:.01em;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4,h5,h6{font-weight:650;line-height:1.3;color:var(--text-1);margin:0}
p{margin:0}
ul,ol{margin:0;padding: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(20,103,214,.28);border-radius:6px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-600);color:#fff;padding:10px 16px;z-index:200}
.skip-link:focus{left:12px;top:12px;color:#fff}
.grid-container,.container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%}
@media screen and (max-width:767px){.grid-container,.container{padding-left:16px;padding-right:16px}}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:all .2s ease-out;white-space:nowrap;
}
.btn--primary{background:var(--coral-500);color:#fff;box-shadow:0 6px 18px rgba(255,122,69,.24)}
.btn--primary:hover{background:#F2662F;color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,122,69,.34)}
.btn--primary:active{transform:translateY(1px)}
.btn--ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-500)}
.btn--ghost:hover{background:var(--brand-100);color:var(--brand-700);text-decoration:none;transform:translateY(-1px)}
.btn--ghost:active{transform:translateY(1px)}
.btn--text{background:transparent;color:var(--brand-600);padding:0 4px;height:auto}
.btn--text:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:600;background:var(--brand-100);color:var(--brand-700);
}
.badge--coral{background:var(--coral-050);color:var(--coral-500)}
.tag-pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:500;
}
.tag-pill:hover{background:var(--brand-500);color:#fff;text-decoration:none}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:90;background:#fff}
.brand-bar{border-bottom:1px solid var(--line);background:#fff;transition:box-shadow .24s ease-out}
.brand-bar__inner{height:72px;display:flex;align-items:center;gap:24px;transition:height .24s ease-out}
.site-header.is-scrolled .brand-bar{box-shadow:var(--shadow-sm)}
.site-header.is-scrolled .brand-bar__inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand:hover{text-decoration:none}
.brand__mark{
  width:38px;height:38px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand-600),var(--cyan-500));
  color:#fff;font-size:19px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.brand__name{font-size:19px;font-weight:700;color:var(--text-1);letter-spacing:.02em}
.brand-links{display:flex;align-items:center;gap:20px;margin-left:8px}
.brand-links a{font-size:14.5px;color:var(--text-2)}
.brand-links a:hover{color:var(--brand-600)}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  color:var(--text-2);display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:all .2s ease-out;
}
.icon-btn:hover{color:var(--brand-600);border-color:var(--brand-500);background:var(--brand-100)}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:all .2s}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-menu{
  display:none;border-bottom:1px solid var(--line);background:#fff;padding:8px 0 16px;
}
.mobile-menu.is-open{display:block}
.mobile-menu a{display:flex;align-items:center;min-height:44px;font-size:15.5px;color:var(--text-1);padding:0 4px;border-bottom:1px solid var(--line)}
.mobile-menu a:last-child{border-bottom:none}
.mobile-menu a.is-active{color:var(--brand-600);font-weight:600}

.channel-bar{background:var(--bg-soft);border-bottom:1px solid var(--line)}
.channel-bar__inner{height:52px;display:flex;align-items:center}
.channels{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;width:100%}
.channels::-webkit-scrollbar{display:none}
.channels a{
  position:relative;display:inline-flex;align-items:center;height:36px;padding:0 14px;border-radius:9px;
  font-size:14.5px;color:var(--text-2);white-space:nowrap;transition:all .18s ease-out;
}
.channels a:hover{color:var(--brand-600);background:#fff;text-decoration:none}
.channels a.is-active{background:var(--brand-100);color:var(--brand-600);font-weight:600}
.channels a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-8px;height:2px;border-radius:2px;background:var(--brand-600);
}

/* ============ 页面头部 ============ */
.page-head{
  background:linear-gradient(180deg,var(--bg-soft) 0%,#fff 100%);
  border-bottom:1px solid var(--line);
  padding:28px 0 40px;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);flex-wrap:wrap;margin-bottom:22px}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb span.sep{color:#C6D4E4}
.breadcrumb .current{color:var(--text-3)}
.article-head{max-width:900px}
.article-head .badge{margin-bottom:16px}
.article-head h1{
  font-size:34px;line-height:1.32;font-weight:700;letter-spacing:.01em;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:18px;font-size:14px;color:var(--text-3)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6D4E4}
.article-meta i{color:var(--brand-500);margin-right:6px}

/* ============ 正文布局 ============ */
.article-section{padding:56px 0 88px;background:#fff}
.article-layout{display:grid;grid-template-columns:minmax(0,820px);justify-content:center;gap:48px;align-items:start}
.article-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:40px;
}
.article-body{font-size:17px;line-height:1.9;color:var(--text-1);word-break:break-word}
.article-body p{margin:0 0 20px}
.article-body h2{position:relative;font-size:26px;font-weight:650;margin:40px 0 14px;padding-left:16px;line-height:1.35}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;width:4px;height:22px;border-radius:2px;background:var(--brand-600)}
.article-body h3{font-size:20px;font-weight:650;margin:32px 0 12px}
.article-body h4{font-size:18px;font-weight:650;margin:26px 0 10px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body ul li{list-style:disc;margin-bottom:10px;line-height:1.8}
.article-body ol li{list-style:decimal;margin-bottom:10px;line-height:1.8}
.article-body img{width:100%;height:auto;margin:16px 0;border-radius:var(--radius-img)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px}
.article-body blockquote{
  margin:24px 0;padding:20px;background:var(--bg-soft);border-left:3px solid var(--brand-500);
  border-radius:10px;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-700)}
.article-body code{background:var(--bg-soft);border:1px solid var(--line);padding:2px 6px;border-radius:6px;font-size:15px;color:var(--brand-700)}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:22px 0;border-radius:10px;overflow:hidden}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:var(--bg-soft);font-weight:600;color:var(--text-1)}
.article-body tr:last-child td{border-bottom:none}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0}

.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.article-tags .label{font-size:14px;color:var(--text-3);margin-right:4px}

.empty-state{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;color:var(--text-2);text-align:center;
}
.empty-state i{font-size:34px;color:var(--brand-500)}

/* 目录 */
.toc{display:none}
.toc__inner{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;position:sticky;top:120px;
}
.toc__title{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.toc__title i{color:var(--brand-500)}
.toc__list a{display:block;font-size:13.5px;line-height:1.6;color:var(--text-2);padding:7px 0 7px 12px;border-left:2px solid var(--line);transition:all .18s ease-out}
.toc__list a:hover,.toc__list a.is-current{color:var(--brand-600);border-left-color:var(--brand-600);text-decoration:none;background:#fff}

/* ============ 上下篇 / 相关推荐 ============ */
.next-prev{padding:0 0 72px}
.next-prev__grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.np-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;box-shadow:var(--shadow-sm);transition:all .22s ease-out;
}
.np-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-100);text-decoration:none}
.np-card__label{font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:6px;margin-bottom:10px}
.np-card__label i{color:var(--brand-500)}
.np-card__title{font-size:17px;font-weight:650;color:var(--text-1);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.np-card--next{text-align:right}
.np-card--next .np-card__label{justify-content:flex-end}

.section-block{padding:0 0 72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-head h2{font-size:26px;font-weight:650}
.section-head .sub{font-size:14.5px;color:var(--text-2);margin-top:8px}
.section-head .more{font-size:14.5px;font-weight:600;white-space:nowrap}

.related-grid{margin-left:-20px;margin-right:-20px}
.related-grid > .cell{padding-left:20px;padding-right:20px}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:all .22s ease-out;height:100%;display:flex;flex-direction:column;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-100)}
.post-card__media{position:relative;aspect-ratio:16/9;background:var(--brand-100);overflow:hidden;border-radius:0}
.post-card__media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.post-card__body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.post-card__badge{margin-bottom:12px}
.post-card__title{
  font-size:17.5px;font-weight:650;line-height:1.5;color:var(--text-1);margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__excerpt{
  font-size:14.5px;line-height:1.7;color:var(--text-2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__foot{margin-top:auto;display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-3)}
.post-card:hover .post-card__title{color:var(--brand-700)}
a.post-card{text-decoration:none}

/* ============ 底部 CTA ============ */
.post-cta{margin-bottom:88px}
.post-cta__inner{
  position:relative;overflow:hidden;border-radius:var(--radius-card);
  background:var(--brand-100);padding:48px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.post-cta__text h2{font-size:26px;font-weight:650;margin-bottom:10px}
.post-cta__text p{font-size:15.5px;color:var(--text-2);max-width:560px}
.post-cta__actions{margin-top:22px;display:flex;gap:14px;flex-wrap:wrap}
.post-cta__figure{width:300px;flex-shrink:0}
.post-cta__figure img{width:100%;height:180px;object-fit:cover;border-radius:var(--radius-img)}
.post-cta__glow{position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:var(--cyan-050);opacity:.7}

.back-links{display:flex;flex-wrap:wrap;gap:20px;margin-top:8px;font-size:15px;font-weight:600}
.back-links a{display:inline-flex;align-items:center;gap:8px}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:28px;bottom:32px;z-index:80;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .28s ease-out;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta__btn{
  display:inline-flex;align-items:center;gap:10px;height:52px;padding:0 24px;border-radius:999px;
  background:var(--coral-500);color:#fff;font-weight:600;font-size:15px;
  box-shadow:0 14px 32px rgba(255,122,69,.34);
}
.float-cta__btn:hover{background:#F2662F;color:#fff;text-decoration:none;transform:translateY(-2px)}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:64px 0 0}
.footer-top{display:grid;grid-template-columns:1.3fr 2fr;gap:48px;padding-bottom:44px}
.footer-brand p{font-size:14.5px;line-height:1.8;color:var(--text-2);margin:18px 0 20px;max-width:340px}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-2)}
.footer-contact i{color:var(--brand-500);width:16px;margin-right:8px}
.footer-quote{
  margin-top:20px;padding:14px 18px;background:#fff;border:1px solid var(--line);border-radius:10px;
  font-size:13.5px;color:var(--text-2);display:inline-block;
}
.footer-columns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}
.footer-col h3{font-size:15px;font-weight:650;margin-bottom:18px;color:var(--text-1)}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14.5px;color:var(--text-2)}
.footer-col a:hover{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13.5px;color:var(--text-3);
}
.footer-bottom .to-top{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--brand-600)}
.footer-bottom .to-top:hover{text-decoration:underline}

/* ============ 响应式 ============ */
@media (min-width:1180px){
  .article-layout.has-toc{grid-template-columns:minmax(0,820px) 240px}
  .article-layout.has-toc .toc{display:block}
}
@media screen and (max-width:1199px){
  .footer-top{grid-template-columns:1fr;gap:36px}
  .post-cta__figure{display:none}
}
@media screen and (max-width:991px){
  .brand-links{display:none}
  .article-head h1{font-size:30px}
  .article-card{padding:32px}
  .article-body h2{font-size:23px}
  .post-cta__inner{padding:36px 28px}
}
@media screen and (max-width:767px){
  body{font-size:16px}
  .brand-bar__inner{height:64px;gap:12px}
  .brand__name{font-size:16.5px}
  .brand__mark{width:34px;height:34px;font-size:17px;border-radius:10px}
  .brand-actions .btn--primary{display:none}
  .menu-toggle{display:flex}
  .icon-btn{display:none}
  .channel-bar__inner{height:50px}
  .page-head{padding:20px 0 28px}
  .article-head h1{font-size:26px}
  .article-section{padding:36px 0 56px}
  .article-card{padding:24px 20px;border-radius:12px}
  .article-body{font-size:16px}
  .article-body h2{font-size:21px;margin-top:32px}
  .article-body h3{font-size:18.5px}
  .next-prev__grid{grid-template-columns:1fr}
  .np-card--next{text-align:left}
  .np-card--next .np-card__label{justify-content:flex-start}
  .section-head h2{font-size:22px}
  .post-cta__inner{padding:30px 22px;flex-direction:column;align-items:flex-start}
  .post-cta__text h2{font-size:22px}
  .footer-top{padding-bottom:32px}
  .footer-columns{grid-template-columns:1fr 1fr;gap:24px}
  .float-cta{right:0;left:0;bottom:0;transform:none}
  .float-cta.is-visible{transform:none}
  .float-cta__btn{
    width:100%;height:56px;border-radius:0;justify-content:center;
    padding-bottom:env(safe-area-inset-bottom,0);
  }
  body{padding-bottom:0}
}
@media screen and (max-width:480px){
  .article-head h1{font-size:23px}
  .footer-columns{grid-template-columns:1fr}
  .article-meta{gap:8px 12px;font-size:13px}
}

/* roulang page: category1 */
:root{
  --brand-600:#1467D6;
  --brand-700:#0B4DA2;
  --brand-500:#2E86F0;
  --brand-100:#E7F1FE;
  --cyan-500:#17C3CE;
  --cyan-050:#D9F7F8;
  --coral-500:#FF7A45;
  --coral-050:#FFEDE4;
  --text-1:#10233A;
  --text-2:#5B6E85;
  --text-3:#8A9AAF;
  --line:#E4EDF7;
  --bg:#FFFFFF;
  --bg-soft:#F5F8FC;
  --ok:#17A673;
  --warn:#E9A21B;
  --err:#E04B4B;
  --radius-lg:14px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(16,45,80,.06);
  --shadow-md:0 8px 28px rgba(16,45,80,.08);
  --shadow-lg:0 18px 48px rgba(16,45,80,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:17px;line-height:1.85;letter-spacing:.01em;color:var(--text-1);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--brand-700);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:650;line-height:1.3;color:var(--text-1)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse}
:focus-visible{outline:3px solid rgba(20,103,214,.28);outline-offset:2px;border-radius:6px}
section[id],div[id].anchor-target{scroll-margin-top:96px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:#fff;color:var(--brand-700);padding:12px 18px;border-radius:0 0 var(--radius-sm) 0;box-shadow:var(--shadow-md)}
.skip-link:focus{left:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;line-height:1;
  transition:transform .2s ease-out,background-color .2s ease-out,box-shadow .2s ease-out,color .2s ease-out,border-color .2s ease-out;
  white-space:nowrap;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--coral-500);color:#fff;box-shadow:0 6px 18px rgba(255,122,69,.28)}
.btn--primary:hover{background:#F2672F;color:#fff;box-shadow:0 10px 24px rgba(255,122,69,.32)}
.btn--ghost{background:#fff;color:var(--brand-600);border:1px solid var(--brand-500)}
.btn--ghost:hover{background:var(--brand-100);color:var(--brand-700)}
.btn--sm{height:38px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:90;background:#fff;transition:box-shadow .24s ease-out}
.brand-bar{height:72px;display:flex;align-items:center;border-bottom:1px solid var(--line);background:rgba(255,255,255,.96);transition:height .24s ease-out}
.site-header.is-scrolled .brand-bar{height:60px;box-shadow:var(--shadow-sm)}
.brand-bar__inner{display:flex;align-items:center;gap:20px;width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.logo{display:flex;align-items:center;gap:10px;color:var(--text-1);font-weight:700;font-size:17px;white-space:nowrap;flex:0 0 auto}
.logo:hover{color:var(--text-1);text-decoration:none}
.logo__mark{
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;
  background:linear-gradient(135deg,var(--brand-600),var(--cyan-500));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
}
.brand-links{display:flex;align-items:center;gap:20px;margin-left:auto}
.brand-links a{font-size:14.5px;color:var(--text-2);font-weight:500;position:relative;padding:6px 0}
.brand-links a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--brand-600);transition:right .22s ease-out}
.brand-links a:hover{color:var(--brand-700);text-decoration:none}
.brand-links a:hover::after{right:0}
.brand-bar__cta{margin-left:8px}
.menu-btn{display:none;width:44px;height:44px;margin-left:auto;border-radius:var(--radius-sm);border:1px solid var(--line);align-items:center;justify-content:center;background:#fff}
.menu-btn span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative;transition:background .2s ease-out}
.menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;transition:transform .22s ease-out}
.menu-btn span::before{top:-6px}
.menu-btn span::after{top:6px}
.menu-btn[aria-expanded="true"] span{background:transparent}
.menu-btn[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}
.mobile-panel{display:none;border-bottom:1px solid var(--line);background:#fff}
.mobile-panel__inner{padding:12px 24px 20px;display:grid;gap:6px}
.mobile-panel a{padding:12px 8px;border-radius:var(--radius-sm);font-size:15px;color:var(--text-2);font-weight:500;min-height:44px;display:flex;align-items:center}
.mobile-panel a:hover{background:var(--bg-soft);color:var(--brand-700);text-decoration:none}
.mobile-panel.is-open{display:block}

.channel-bar{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.channel-bar__inner{display:flex;align-items:center;min-height:52px;max-width:var(--container);margin:0 auto;padding:0 24px}
.channels{display:flex;align-items:center;gap:8px;overflow-x:auto;padding:6px 0;-ms-overflow-style:none;scrollbar-width:none}
.channels::-webkit-scrollbar{display:none}
.channels a{
  flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--text-2);transition:background-color .2s ease-out,color .2s ease-out,box-shadow .2s ease-out;
}
.channels a:hover{background:#fff;color:var(--brand-700);text-decoration:none}
.channels a.is-active{background:var(--brand-100);color:var(--brand-700);font-weight:600;box-shadow:inset 0 -2px 0 var(--brand-600)}

/* ---------- 面包屑 ---------- */
.breadcrumbs{margin:0;padding:0;list-style:none;background:transparent;border:0}
.breadcrumbs li{float:none;display:inline-block;font-size:14px;color:var(--text-3);line-height:1.6}
.breadcrumbs li::before{content:"/";margin:0 8px;color:var(--text-3);position:static;top:auto;left:auto;height:auto;width:auto}
.breadcrumbs li:first-child::before{content:none;margin:0}
.breadcrumbs a{color:var(--text-3)}
.breadcrumbs a:hover{color:var(--brand-600);text-decoration:none}
.breadcrumbs .current{color:var(--text-3)}

/* ---------- 首屏 ---------- */
.page-hero{position:relative;padding:44px 0 56px;background:var(--bg-soft);overflow:hidden}
.page-hero__bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center right;opacity:.34}
.page-hero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.9) 48%,rgba(245,248,252,.72) 100%)}
.page-hero__inner{position:relative;z-index:1;max-width:820px}
.page-hero .breadcrumbs{margin-bottom:20px}
.hero-title{font-size:44px;font-weight:700;letter-spacing:.005em;margin-bottom:18px}
.hero-title em{font-style:normal;color:var(--brand-700);position:relative;white-space:nowrap}
.hero-title em::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:8px;background:var(--cyan-050);z-index:-1;border-radius:4px}
.hero-lead{font-size:17.5px;color:var(--text-2);line-height:1.8;max-width:640px}
.page-anchors{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.page-anchors a{
  display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 15px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13.5px;font-weight:500;color:var(--text-2);
  transition:border-color .2s ease-out,color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;
}
.page-anchors a:hover{border-color:var(--brand-500);color:var(--brand-700);text-decoration:none;box-shadow:var(--shadow-sm);transform:translateY(-1px)}
.trust-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:34px;max-width:760px}
.trust-strip li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.5}
.trust-strip .icon{width:32px;height:32px;flex:0 0 auto;border-radius:9px;background:var(--brand-100);color:var(--brand-600);display:flex;align-items:center;justify-content:center}
.trust-strip svg{width:16px;height:16px}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--soft{background:var(--bg-soft)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head h2{font-size:32px;font-weight:700}
.section-sub{margin-top:10px;font-size:15.5px;color:var(--text-2);max-width:640px}
.eyebrow{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--cyan-050);color:#0E8A93;font-size:13px;font-weight:600;letter-spacing:.04em;margin-bottom:14px}

/* ---------- 图文交替 ---------- */
.alt-rows{display:grid;gap:0}
.alt-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:44px 0}
.alt-row + .alt-row{border-top:1px dashed var(--line)}
.alt-row--reverse .alt-row__media{order:2}
.alt-row--reverse .alt-row__body{order:1}
.alt-row__media{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-md);background:var(--brand-100);transition:transform .24s ease-out,box-shadow .24s ease-out}
.alt-row__media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.alt-row:hover .alt-row__media{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.alt-row__body h3{font-size:22px;margin-bottom:14px}
.alt-row__body > p{font-size:16px;color:var(--text-2);line-height:1.85}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;height:28px;min-width:46px;padding:0 10px;
  border-radius:999px;background:var(--cyan-050);color:#0E8A93;font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:14px;
}
.tick-list{display:grid;gap:10px;margin:18px 0 22px}
.tick-list li{position:relative;padding-left:26px;font-size:15.5px;line-height:1.7;color:var(--text-2)}
.tick-list li::before{content:"";position:absolute;left:0;top:8px;width:16px;height:16px;border-radius:50%;background:var(--brand-100);box-shadow:inset 0 0 0 2px var(--brand-500)}
.tick-list li::after{content:"";position:absolute;left:5px;top:12px;width:6px;height:3px;border-left:2px solid var(--brand-700);border-bottom:2px solid var(--brand-700);transform:rotate(-45deg)}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-600)}
.link-more::after{content:"→";transition:transform .2s ease-out}
.link-more:hover{color:var(--brand-700);text-decoration:none}
.link-more:hover::after{transform:translateX(3px)}

/* ---------- 卡片 ---------- */
.card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;color:inherit;
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-100);color:inherit;text-decoration:none}
.card__cover{background:var(--brand-100)}
.card__cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.card__body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card__title{font-size:17px;font-weight:650;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__desc{font-size:14.5px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card__meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}
.card__meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3);flex:0 0 auto}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:13px;font-weight:600;line-height:1;width:fit-content}
.badge--brand{background:var(--brand-100);color:var(--brand-700)}
.badge--coral{background:var(--coral-050);color:var(--coral-500)}
.badge--cyan{background:var(--cyan-050);color:#0E8A93}
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.cat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;padding:0 24px}
.accordion{background:transparent;border:0;margin:0}
.accordion-item{margin-bottom:8px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s ease-out}
.accordion-item:hover{border-color:var(--brand-100)}
.accordion-title{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;border:0;background:#fff;color:var(--text-1);
  font-size:17px;font-weight:650;line-height:1.5;transition:background-color .2s ease-out,color .2s ease-out;
}
.accordion-title:hover,.accordion-title:focus{background:#FBFDFF;color:var(--brand-700);text-decoration:none}
.accordion-title::before{
  content:"+";position:static;margin:0;flex:0 0 auto;width:24px;height:24px;line-height:22px;text-align:center;
  font-size:20px;font-weight:500;color:var(--brand-600);transition:transform .22s ease-out;
}
.accordion-item.is-active .accordion-title::before{transform:rotate(45deg)}
.accordion-content{padding:0;border:0;background:var(--bg-soft);display:none}
.accordion-item.is-active .accordion-content{display:block}
.qa-body{padding:16px 22px 20px;font-size:15.5px;line-height:1.85;color:var(--text-2);border-radius:0 0 var(--radius-sm) var(--radius-sm)}
.qa-body a{font-weight:600}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;border-radius:20px;background:var(--brand-100);
  padding:52px 48px;display:grid;grid-template-columns:1fr auto;gap:36px;align-items:center;
}
.cta-panel::before{content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;background:rgba(23,195,206,.16)}
.cta-panel__text{position:relative;z-index:1;max-width:620px}
.cta-panel h2{font-size:32px;margin-bottom:14px}
.cta-panel p{font-size:16px;color:var(--text-2);margin-bottom:26px}
.cta-panel__actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-panel__pic{position:relative;z-index:1;width:236px;border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(255,255,255,.8);box-shadow:var(--shadow-md)}
.cta-panel__pic img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:56px 0 28px;margin-top:8px}
.footer-top{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:36px;padding-bottom:36px;border-bottom:1px solid var(--line)}
.footer-brand .logo{margin-bottom:16px;font-size:16px}
.footer-brand p{font-size:14.5px;color:var(--text-2);line-height:1.8;max-width:320px}
.footer-quote{margin-top:20px;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);font-size:14px;color:var(--text-2);line-height:1.7}
.footer-quote strong{display:block;margin-top:8px;font-size:13px;color:var(--text-3);font-weight:600}
.footer-col h3{font-size:15px;font-weight:650;margin-bottom:16px;color:var(--text-1)}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14.5px;color:var(--text-2);display:inline-block;min-height:24px;line-height:1.6}
.footer-col a:hover{color:var(--brand-600);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:22px;flex-wrap:wrap}
.footer-bottom p{font-size:13.5px;color:var(--text-3);line-height:1.8}
.to-top{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13.5px;font-weight:600;color:var(--text-2);
  transition:color .2s ease-out,border-color .2s ease-out,transform .2s ease-out;
}
.to-top:hover{color:var(--brand-700);border-color:var(--brand-500);text-decoration:none;transform:translateY(-1px)}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:120;display:inline-flex;align-items:center;gap:10px;
  height:52px;padding:0 22px;border-radius:999px;background:var(--coral-500);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 14px 34px rgba(255,122,69,.34);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .26s ease-out,transform .26s ease-out,visibility .26s ease-out,background-color .2s ease-out;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:none}
.float-cta:hover{background:#F2672F;color:#fff;text-decoration:none}
.float-cta::after{content:"→";font-weight:700}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-title{font-size:38px}
  .section{padding:76px 0}
}
@media (max-width:991px){
  body{font-size:16px}
  .brand-links{display:none}
  .menu-btn{display:flex}
  .alt-row{grid-template-columns:1fr;gap:28px;padding:36px 0}
  .alt-row--reverse .alt-row__media{order:0}
  .alt-row--reverse .alt-row__body{order:0}
  .cat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
  .hero-title{font-size:34px}
  .section-head h2,.cta-panel h2{font-size:26px}
  .cta-panel{grid-template-columns:1fr;padding:40px 32px}
  .cta-panel__pic{display:none}
}
@media (max-width:767px){
  .container,.brand-bar__inner,.channel-bar__inner,.faq-wrap{padding-left:16px;padding-right:16px}
  .brand-bar{height:64px}
  .brand-bar__cta{display:none}
  .logo{font-size:15.5px}
  .logo__mark{width:30px;height:30px;font-size:14px}
  .page-hero{padding:32px 0 44px}
  .hero-title{font-size:27px}
  .hero-lead{font-size:16px}
  .trust-strip{grid-template-columns:1fr;gap:12px;margin-top:26px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .section-head h2{font-size:24px}
  .news-grid,.cat-grid{grid-template-columns:1fr}
  .alt-row__body h3{font-size:19px}
  .alt-row__body > p{font-size:15.5px}
  .accordion-title{font-size:16px;padding:12px 16px;min-height:56px}
  .qa-body{padding:14px 16px 18px;font-size:15px}
  .footer-top{grid-template-columns:1fr;gap:26px;padding-bottom:28px}
  .site-footer{padding-bottom:104px}
  .cta-panel{padding:32px 22px;border-radius:16px}
  .cta-panel h2{font-size:22px}
  .cta-panel__actions .btn{width:100%}
  .float-cta{left:16px;right:16px;bottom:14px;height:56px;justify-content:center;border-radius:14px}
}
@media (max-width:480px){
  .hero-title{font-size:24px}
  .page-anchors a{height:34px;padding:0 12px;font-size:13px}
  .card__body{padding:18px 16px 20px}
}

/* roulang page: category2 */
:root{
  --brand-600:#1467D6;
  --brand-700:#0B4DA2;
  --brand-500:#2E86F0;
  --brand-100:#E7F1FE;
  --cyan-500:#17C3CE;
  --cyan-050:#D9F7F8;
  --coral-500:#FF7A45;
  --coral-050:#FFEDE4;
  --text-900:#10233A;
  --text-600:#5B6E85;
  --text-400:#8A9AAF;
  --line:#E4EDF7;
  --bg:#FFFFFF;
  --bg-soft:#F5F8FC;
  --ok:#17A673;
  --warn:#E9A21B;
  --err:#E04B4B;
  --radius-card:14px;
  --radius-sm:10px;
  --radius-img:12px;
  --shadow-sm:0 2px 8px rgba(16,45,80,.06);
  --shadow-md:0 8px 28px rgba(16,45,80,.08);
  --shadow-lg:0 18px 48px rgba(16,45,80,.12);
  --container:1200px;
  --gutter:24px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text-900);
  background:var(--bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
h1,h2,h3,h4{margin:0;font-weight:650;line-height:1.3;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
a{color:var(--brand-600);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-700);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
:focus-visible{outline:3px solid rgba(20,103,214,.28);outline-offset:2px;border-radius:6px}
section[id],div[id]{scroll-margin-top:150px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff}
.brand-bar{background:#fff;transition:box-shadow .22s var(--ease)}
.brand-bar__inner{display:flex;align-items:center;gap:22px;height:72px;transition:height .22s var(--ease)}
.site-header.is-scrolled .brand-bar__inner{height:60px}
.site-header.is-scrolled .brand-bar{box-shadow:var(--shadow-sm)}

.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text-900);font-weight:700;font-size:16px;letter-spacing:.01em;line-height:1.2}
.logo:hover{text-decoration:none;color:var(--brand-700)}
.logo__mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand-600),var(--cyan-500));color:#fff;font-size:12.5px;font-weight:700;letter-spacing:0;flex:0 0 auto}
.logo--footer{font-size:15.5px}

.brand-links{display:flex;align-items:center;gap:20px;margin-left:auto}
.brand-links a{color:var(--text-600);font-size:14.5px;font-weight:500}
.brand-links a:hover{color:var(--brand-700);text-decoration:none;box-shadow:0 2px 0 var(--brand-600)}

.brand-actions{display:flex;align-items:center;gap:10px}
.search-btn{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;color:var(--text-600);border:1px solid var(--line);background:#fff;transition:all .2s var(--ease)}
.search-btn:hover{color:var(--brand-600);border-color:var(--brand-500);background:var(--brand-100)}
.search-btn svg{width:18px;height:18px}

.menu-toggle{display:none;width:42px;height:42px;border-radius:var(--radius-sm);border:1px solid var(--line);background:#fff;flex-direction:column;justify-content:center;align-items:center;gap:4px}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-900);transition:.2s var(--ease)}

.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 0 20px}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{display:block;padding:12px 0;color:var(--text-600);font-size:15px;border-bottom:1px solid var(--line)}
.mobile-drawer a:last-child{border-bottom:none}
.mobile-drawer a:hover{color:var(--brand-600);text-decoration:none}

/* ---------- Channel bar ---------- */
.channel-bar{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.channel-bar__inner{display:flex;align-items:center;gap:6px;height:52px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-bar__inner::-webkit-scrollbar{display:none}
.channel{flex:0 0 auto;position:relative;display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;color:var(--text-600);font-size:15px;font-weight:500;transition:background .2s var(--ease),color .2s var(--ease)}
.channel:hover{background:#fff;color:var(--brand-700);text-decoration:none}
.channel.is-active{background:var(--brand-100);color:var(--brand-600);font-weight:600}
.channel.is-active::after{content:"";position:absolute;left:16px;right:16px;bottom:-11px;height:2px;border-radius:2px;background:var(--brand-600)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;white-space:nowrap;transition:transform .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease)}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--coral-500);color:#fff;box-shadow:0 6px 18px rgba(255,122,69,.26)}
.btn-primary:hover{background:#F2682F;color:#fff;box-shadow:0 10px 24px rgba(255,122,69,.32)}
.btn-outline{background:#fff;color:var(--brand-600);border:1px solid var(--brand-500)}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;pointer-events:none}

/* ---------- Hero ---------- */
.page-hero{position:relative;background:var(--bg-soft);padding:32px 0 0;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero::before{content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center right;opacity:.09;pointer-events:none}
.page-hero .container{position:relative;z-index:1}

.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-400)}
.breadcrumb a{color:var(--text-400)}
.breadcrumb a:hover{color:var(--brand-600);text-decoration:none}
.breadcrumb span{color:#C4D2E2}
.breadcrumb em{font-style:normal;color:var(--text-600)}

.page-hero__grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;padding:30px 0 44px}
.eyebrow{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--cyan-050);color:#0C8B93;font-size:13px;font-weight:600;margin-bottom:18px}
.page-hero h1{font-size:38px;font-weight:700;line-height:1.28;color:var(--text-900);margin-bottom:16px}
.page-hero__lead{font-size:17px;color:var(--text-600);line-height:1.8;max-width:560px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tags a{display:inline-flex;align-items:center;height:34px;padding:0 15px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--text-600);font-size:14px;font-weight:500;transition:all .2s var(--ease)}
.hero-tags a:hover{border-color:var(--brand-500);color:var(--brand-700);text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-sm)}

.page-hero__media{position:relative;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-md);border:1px solid var(--line);background:#fff}
.page-hero__media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.float-chip{position:absolute;right:14px;bottom:14px;display:flex;align-items:center;gap:10px;background:var(--cyan-050);border-radius:var(--radius-sm);padding:10px 14px;box-shadow:var(--shadow-sm)}
.float-chip strong{font-size:20px;color:#0C8B93;font-weight:700;line-height:1}
.float-chip span{font-size:13px;color:#0C8B93}

/* ---------- Stat strip ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden;transform:translateY(22px)}
.stat{padding:22px 24px;border-right:1px solid var(--line)}
.stat:last-child{border-right:none}
.stat strong{display:block;font-size:28px;font-weight:700;color:var(--brand-600);line-height:1.15;letter-spacing:0}
.stat span{display:block;margin-top:4px;font-size:13.5px;color:var(--text-600)}

/* ---------- Sections ---------- */
.section{padding:96px 0}
.section--soft{background:var(--bg-soft)}
.section--tight{padding-top:78px}
.section-head{margin-bottom:40px;max-width:720px}
.section-head h2{font-size:32px;font-weight:700;margin-bottom:12px}
.section-head .section-sub{color:var(--text-600);font-size:16px}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-600)}
.text-link::after{content:"→";transition:transform .2s var(--ease)}
.text-link:hover{text-decoration:none;color:var(--brand-700)}
.text-link:hover::after{transform:translateX(3px)}

/* ---------- Catalog (masonry cards) ---------- */
.catalog-columns{column-count:2;column-gap:28px}
.g-card{break-inside:avoid;margin-bottom:28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.g-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-100)}
.g-card__cover{display:block;overflow:hidden;background:var(--brand-100)}
.g-card__cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--ease)}
.g-card:hover .g-card__cover img{transform:scale(1.03)}
.g-card__body{padding:22px 24px 20px}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.01em}
.badge--brand{background:var(--brand-100);color:var(--brand-700)}
.badge--coral{background:var(--coral-050);color:#D9531F}
.badge--cyan{background:var(--cyan-050);color:#0C8B93}
.g-card__title{font-size:22px;font-weight:650;line-height:1.4;margin:14px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.g-card__title a{color:var(--text-900)}
.g-card__title a:hover{color:var(--brand-700);text-decoration:none}
.g-card__text{color:var(--text-600);font-size:15.5px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.g-card__foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.meta{font-size:13px;color:var(--text-400);letter-spacing:0}

/* ---------- Picking ---------- */
.picking{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:start}
.pick-item{display:flex;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px 24px;box-shadow:var(--shadow-sm);transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.pick-item + .pick-item{margin-top:16px}
.pick-item:hover{border-color:var(--brand-100);box-shadow:var(--shadow-md)}
.pick-num{flex:0 0 auto;font-size:15px;font-weight:700;color:var(--brand-600);background:var(--brand-100);border-radius:var(--radius-sm);width:42px;height:42px;display:grid;place-items:center;letter-spacing:0}
.pick-item h3{font-size:18px;font-weight:650;margin-bottom:6px}
.pick-item p{color:var(--text-600);font-size:15.5px;line-height:1.8}
.picking__media{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);background:var(--brand-100)}
.picking__media img{width:100%;aspect-ratio:4/5;object-fit:cover}

/* ---------- News entries ---------- */
.news-mini{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.news-item{display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:16px;box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brand-100);text-decoration:none}
.news-item img{width:96px;height:64px;object-fit:cover;border-radius:var(--radius-img);flex:0 0 auto;background:var(--brand-100)}
.news-item h3{font-size:16px;font-weight:600;color:var(--text-900);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item .meta{display:block;margin-top:6px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:8px 24px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:none}
.faq-item summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:56px;padding:18px 0;font-size:17px;font-weight:600;color:var(--text-900);cursor:pointer}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;width:26px;height:26px;display:grid;place-items:center;border-radius:50%;background:var(--brand-100);color:var(--brand-600);font-size:18px;font-weight:600;line-height:1;transition:transform .22s var(--ease)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 0 20px 16px;background:transparent}
.faq-body p{color:var(--text-600);font-size:15.5px;line-height:1.85;background:var(--bg-soft);border-radius:var(--radius-sm);padding:16px 18px}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand-100);border-radius:20px;padding:44px 48px;display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;overflow:hidden;position:relative}
.cta-band h2{font-size:28px;font-weight:700;margin-bottom:12px}
.cta-band p{color:var(--text-600);font-size:16px;max-width:640px}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.cta-band__media{width:240px;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-md);flex:0 0 auto}
.cta-band__media img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);margin-top:96px}
.footer-top{display:grid;grid-template-columns:4fr 8fr;gap:56px;padding:64px 24px 48px}
.footer-brand .logo{margin-bottom:16px}
.footer-slogan{color:var(--text-600);font-size:15px;max-width:280px;margin-bottom:18px}
.footer-meta li{font-size:14px;color:var(--text-400);line-height:2}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.footer-col h4{font-size:15px;font-weight:650;color:var(--text-900);margin-bottom:16px}
.footer-col a{display:block;font-size:14.5px;color:var(--text-600);line-height:2.1}
.footer-col a:hover{color:var(--brand-600);text-decoration:underline;text-decoration-thickness:1px}
.footer-bottom{border-top:1px solid var(--line)}
.footer-bottom__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;padding:20px 24px;font-size:13.5px;color:var(--text-400)}
.to-top{display:inline-flex;align-items:center;gap:6px;color:var(--text-600);font-size:13.5px}
.to-top:hover{color:var(--brand-600);text-decoration:none}

/* ---------- Floating CTA ---------- */
.float-cta{position:fixed;right:28px;bottom:28px;z-index:90;display:inline-flex;align-items:center;gap:10px;height:52px;padding:0 22px;border-radius:999px;background:var(--coral-500);color:#fff;font-size:15px;font-weight:600;box-shadow:0 12px 30px rgba(255,122,69,.36);opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s,background-color .2s var(--ease)}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:#F2682F;color:#fff;text-decoration:none}
.float-cta span{font-size:16px;line-height:1}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .page-hero h1{font-size:34px}
  .section{padding:82px 0}
}
@media (max-width:991px){
  .brand-links{display:none}
  .page-hero__grid{grid-template-columns:1fr;gap:32px;padding:24px 0 36px}
  .page-hero__media{order:-1}
  .page-hero h1{font-size:30px}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:none}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .picking{grid-template-columns:1fr;gap:28px}
  .picking__media img{aspect-ratio:16/9}
  .cta-band{grid-template-columns:1fr;padding:36px 28px}
  .cta-band__media{display:none}
  .footer-top{grid-template-columns:1fr;gap:36px;padding:48px 24px 36px}
  .section-head h2{font-size:26px}
}
@media (max-width:767px){
  :root{--gutter:16px}
  body{font-size:16px}
  .brand-bar__inner{height:62px;gap:12px}
  .site-header.is-scrolled .brand-bar__inner{height:56px}
  .logo{font-size:14.5px}
  .logo__mark{width:30px;height:30px;font-size:11.5px}
  .search-btn{display:none}
  .menu-toggle{display:flex}
  .brand-actions .btn-outline{display:none}
  .channel-bar__inner{height:48px}
  .page-hero{padding:22px 0 0}
  .page-hero h1{font-size:26px}
  .page-hero__lead{font-size:15.5px}
  .section{padding:56px 0}
  .section--tight{padding-top:52px}
  .section-head h2{font-size:23px}
  .catalog-columns{column-count:1}
  .stat-strip{transform:translateY(16px)}
  .stat{padding:18px}
  .stat strong{font-size:23px}
  .news-mini{grid-template-columns:1fr}
  .faq-wrap{padding:4px 18px}
  .faq-item summary{font-size:16px}
  .g-card__title{font-size:19px}
  .cta-band{padding:28px 20px;border-radius:16px}
  .cta-band h2{font-size:22px}
  .footer-cols{grid-template-columns:1fr 1fr;gap:24px}
  .site-footer{margin-top:60px}
  .float-cta{right:0;left:0;bottom:0;height:56px;padding:0 20px;border-radius:0;justify-content:center;transform:translateY(100%);padding-bottom:env(safe-area-inset-bottom)}
  .float-cta.is-visible{transform:translateY(0)}
}
@media (max-width:480px){
  .page-hero h1{font-size:23px}
  .hero-tags a{height:32px;font-size:13px;padding:0 13px}
  .footer-cols{grid-template-columns:1fr}
  .g-card__body{padding:18px 18px 16px}
  .stat strong{font-size:21px}
}

/* roulang page: category3 */
:root{
  --brand-600:#1467D6;
  --brand-700:#0B4DA2;
  --brand-500:#2E86F0;
  --brand-100:#E7F1FE;
  --cyan-500:#17C3CE;
  --cyan-050:#D9F7F8;
  --coral-500:#FF7A45;
  --coral-050:#FFEDE4;
  --text-1:#10233A;
  --text-2:#5B6E85;
  --text-3:#8A9AAF;
  --line:#E4EDF7;
  --bg:#FFFFFF;
  --bg-soft:#F5F8FC;
  --ok:#17A673;
  --warn:#E9A21B;
  --err:#E04B4B;
  --radius-lg:14px;
  --radius-md:10px;
  --radius-sm:8px;
  --radius-pill:999px;
  --shadow-sm:0 2px 8px rgba(16,45,80,.06);
  --shadow-md:0 8px 28px rgba(16,45,80,.08);
  --shadow-lg:0 18px 48px rgba(16,45,80,.12);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
  font-size:17px;line-height:1.85;color:var(--text-1);background:var(--bg);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:.01em;font-weight:700;color:var(--text-1)}
p{margin:0}
ul,ol{margin:0;padding:0}
li{list-style:none}
img{max-width:100%;display:block;border-radius:12px}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease-out,border-color .2s ease-out,background .2s ease-out}
a:hover{color:var(--brand-700)}
a:focus-visible,button:focus-visible{outline:3px solid rgba(20,103,214,.28);outline-offset:2px;border-radius:6px}
button{font-family:inherit}
[id]{scroll-margin-top:96px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ============ 顶部品牌行 ============ */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.97)}
.topbar{height:72px;display:flex;align-items:center;border-bottom:1px solid var(--line);transition:height .22s ease-out,box-shadow .22s ease-out}
.site-header.is-scrolled .topbar{height:60px;box-shadow:var(--shadow-sm)}
.topbar-inner{display:flex;align-items:center;gap:16px;height:100%}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text-1)}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand-600) 0%,var(--cyan-500) 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;
}
.brand-text{font-size:16.5px;font-weight:700;white-space:nowrap;letter-spacing:.01em}
.brand-links{display:flex;align-items:center;gap:22px;margin-left:12px}
.brand-links a{font-size:14.5px;color:var(--text-2);font-weight:500}
.brand-links a:hover{color:var(--brand-600)}
.topbar-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.menu-toggle{display:none;align-items:center;justify-content:center;gap:6px;height:38px;padding:0 14px;border-radius:var(--radius-md);border:1px solid var(--line);background:#fff;color:var(--text-1);font-size:14.5px;font-weight:600;cursor:pointer}
.menu-toggle:hover{border-color:var(--brand-500);color:var(--brand-600)}
.mobile-menu{display:none;background:#fff;border-top:1px solid var(--line)}
.mobile-menu.is-open{display:block}
.mobile-menu ul{padding:10px 24px 18px}
.mobile-menu li{border-bottom:1px solid var(--line)}
.mobile-menu li:last-child{border-bottom:0}
.mobile-menu a{display:flex;align-items:center;justify-content:space-between;min-height:48px;font-size:15.5px;color:var(--text-1);font-weight:500}
.mobile-menu a:hover{color:var(--brand-600)}
.mobile-menu a.is-active{color:var(--brand-600);font-weight:600}

/* ============ 频道行 ============ */
.channel-bar{background:var(--bg-soft);border-bottom:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;height:52px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-inner::-webkit-scrollbar{display:none}
.channels{display:flex;align-items:center;gap:6px;white-space:nowrap}
.channels a{
  position:relative;display:inline-flex;align-items:center;height:36px;padding:0 14px;
  border-radius:8px;color:var(--text-2);font-size:15px;font-weight:500;
}
.channels a:hover{color:var(--brand-600);background:#fff}
.channels a.is-active{background:var(--brand-100);color:var(--brand-600);font-weight:600}
.channels a.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:-9px;height:2px;background:var(--brand-600);border-radius:2px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-md);
  font-size:15.5px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease-out,background .18s ease-out,box-shadow .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn-primary{background:var(--coral-500);color:#fff;box-shadow:0 6px 16px rgba(255,122,69,.28)}
.btn-primary:hover{background:#F26A32;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,122,69,.32)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:#fff;color:var(--brand-600);border-color:var(--brand-500)}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14.5px;border-radius:9px}
.btn[disabled]{opacity:.4;cursor:not-allowed}

/* ============ 面包屑与首屏 ============ */
.cat-hero{padding:48px 0 72px;background:linear-gradient(180deg,#F5F8FC 0%,#FFFFFF 100%)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:#C6D3E3}
.breadcrumb .current{color:var(--text-2);font-weight:600}
.cat-hero h1{font-size:44px;letter-spacing:.005em;max-width:760px}
.lede{margin-top:18px;font-size:17px;line-height:1.85;color:var(--text-2);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.meta-chip{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;
  border-radius:var(--radius-pill);background:#fff;border:1px solid var(--line);
  font-size:13.5px;color:var(--text-2);box-shadow:var(--shadow-sm);
}
.meta-chip i{color:var(--brand-500);font-size:13px}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}
.hero-float{
  position:absolute;right:-8px;bottom:-18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-md);padding:14px 18px;box-shadow:var(--shadow-md);min-width:170px;
}
.hero-float .num{font-size:24px;font-weight:700;color:var(--brand-700);line-height:1.2}
.hero-float .txt{font-size:13px;color:var(--text-2);margin-top:2px}

/* ============ 锚点导航 ============ */
.jump-nav{display:flex;flex-wrap:wrap;gap:10px;padding:0 0 4px}
.jump-nav a{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--line);font-size:14.5px;color:var(--text-2);font-weight:500;
  transition:all .2s ease-out;
}
.jump-nav a:hover{border-color:var(--brand-500);color:var(--brand-600);background:var(--brand-100);transform:translateY(-1px)}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-soft{background:var(--bg-soft)}
.section-tight{padding-top:0}
.section-head{max-width:740px;margin-bottom:40px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-600);
  background:var(--brand-100);border-radius:var(--radius-pill);padding:5px 14px;margin-bottom:14px;letter-spacing:.02em;
}
.section-head h2{font-size:32px}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16.5px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-600);border-bottom:2px solid transparent;padding-bottom:2px}
.text-link:hover{color:var(--brand-700);border-bottom-color:var(--brand-500)}
.text-link i{font-size:12px}

/* ============ 时间轴 ============ */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:23px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--brand-500) 0%,var(--brand-100) 100%);border-radius:2px;
}
.timeline-item{position:relative;padding-left:74px;margin-bottom:22px}
.timeline-item:last-child{margin-bottom:0}
.timeline-node{
  position:absolute;left:0;top:4px;width:48px;height:48px;border-radius:50%;
  background:#fff;border:2px solid var(--brand-100);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;font-family:Inter,system-ui,sans-serif;box-shadow:var(--shadow-sm);
  transition:all .22s ease-out;
}
.timeline-item.is-current .timeline-node{background:var(--brand-600);border-color:var(--brand-600);color:#fff;box-shadow:0 8px 20px rgba(20,103,214,.28)}
.timeline-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px 26px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.timeline-item:hover .timeline-card{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-100)}
.timeline-card h3{font-size:22px}
.timeline-card .card-tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  background:var(--cyan-050);color:#0E8C96;font-size:13px;font-weight:600;margin-bottom:12px;
}
.timeline-card p{margin-top:10px;color:var(--text-2);font-size:16px;line-height:1.8}
.timeline-card .card-foot{margin-top:16px;display:flex;flex-wrap:wrap;gap:18px;align-items:center}

/* ============ 准备清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.check-item{
  display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:20px 22px;box-shadow:var(--shadow-sm);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.check-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-100)}
.check-icon{
  flex:0 0 auto;width:36px;height:36px;border-radius:10px;background:var(--brand-100);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
.check-item h4{font-size:17px}
.check-item p{margin-top:6px;font-size:15px;color:var(--text-2);line-height:1.75}

/* ============ 卡点卡片 ============ */
.trouble-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.trouble-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 24px;
  box-shadow:var(--shadow-sm);transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.trouble-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-100)}
.trouble-card .tag-warn{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  background:var(--coral-050);color:#C4551F;font-size:13px;font-weight:600;margin-bottom:14px;
}
.trouble-card h3{font-size:19px}
.trouble-card p{margin-top:10px;font-size:15.5px;color:var(--text-2);line-height:1.8}
.trouble-card .fix{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:15px;color:var(--text-1);
}
.trouble-card .fix strong{color:var(--brand-700);font-weight:600}

/* ============ 延伸阅读 ============ */
.read-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.read-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;color:inherit;
}
.read-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-100);color:inherit}
.read-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.read-card .read-body{padding:22px 24px 26px}
.read-card .badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  background:var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:600;
}
.read-card h3{margin-top:12px;font-size:20px;line-height:1.45}
.read-card p{margin-top:10px;font-size:15.5px;color:var(--text-2);line-height:1.75}
.read-card .read-foot{margin-top:16px;font-size:13px;color:var(--text-3);display:flex;gap:14px;align-items:center}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.accordion{border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;box-shadow:var(--shadow-sm);overflow:hidden;border:0}
.accordion .accordion-item{border-bottom:1px solid var(--line)}
.accordion .accordion-item:last-child{border-bottom:0}
.accordion .accordion-item+.accordion-item{margin-top:0}
.accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:56px;padding:0 24px;border:0;background:#fff;color:var(--text-1);
  font-size:17px;font-weight:600;line-height:1.5;transition:background .2s ease-out,color .2s ease-out;
}
.accordion .accordion-title:hover{background:var(--brand-100);color:var(--brand-700)}
.accordion .accordion-title::before{
  content:"+";font-family:inherit;font-size:24px;font-weight:400;line-height:1;color:var(--brand-600);
  transition:transform .22s ease-out;flex:0 0 auto;order:2;float:none;margin:0;
}
.accordion .accordion-item.is-active .accordion-title{color:var(--brand-700)}
.accordion .accordion-item.is-active .accordion-title::before{transform:rotate(45deg)}
.accordion .accordion-content{
  background:var(--bg-soft);color:var(--text-2);font-size:15.5px;line-height:1.85;
  padding:20px 24px 22px 40px;border:0;
}
.accordion .accordion-content a{font-weight:600}

/* ============ 底部转化 ============ */
.cta-band{background:var(--brand-100);border-radius:18px;padding:56px 48px;position:relative;overflow:hidden}
.cta-band h2{font-size:30px;max-width:560px}
.cta-band p{margin-top:14px;font-size:16.5px;color:var(--text-2);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-visual{
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);
}
.cta-visual img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:64px 0 28px;margin-top:0}
.footer-top{display:flex;gap:64px;justify-content:space-between;padding-bottom:40px;border-bottom:1px solid var(--line)}
.footer-brand{max-width:340px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:15px;color:var(--text-2);line-height:1.8}
.footer-quote{
  margin-top:16px;padding:14px 18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  font-size:14.5px;color:var(--text-2);box-shadow:var(--shadow-sm);
}
.footer-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:48px;flex:1;max-width:640px}
.footer-col h4{font-size:15px;color:var(--text-1);margin-bottom:14px;font-weight:700}
.footer-col a{display:block;font-size:14.5px;color:var(--text-2);padding:6px 0}
.footer-col a:hover{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;padding-top:24px}
.footer-bottom span{font-size:13.5px;color:var(--text-3)}
.back-top{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand-600)}
.back-top:hover{color:var(--brand-700)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .cat-hero h1{font-size:38px}
  .container{padding:0 22px}
}
@media (max-width:991px){
  .section{padding:72px 0}
  .cat-hero{padding:40px 0 60px}
  .cat-hero h1{font-size:34px}
  .trouble-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-float{right:8px;bottom:-14px}
}
@media (max-width:820px){
  .brand-links{display:none}
  .menu-toggle{display:inline-flex}
  .brand-text{font-size:15.5px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 16px}
  .topbar{height:64px}
  .cat-hero{padding:32px 0 48px}
  .cat-hero h1{font-size:29px}
  .lede{font-size:16px;margin-top:14px}
  .hero-actions .btn{width:100%}
  .section{padding:52px 0}
  .section-head h2{font-size:24px}
  .section-head p{font-size:15.5px}
  .timeline::before{left:19px}
  .timeline-item{padding-left:58px;margin-bottom:18px}
  .timeline-node{width:40px;height:40px;font-size:13.5px;top:2px}
  .timeline-card{padding:20px}
  .timeline-card h3{font-size:19px}
  .check-grid{grid-template-columns:1fr}
  .trouble-grid{grid-template-columns:1fr}
  .read-grid{grid-template-columns:1fr}
  .cta-band{padding:36px 22px}
  .cta-band h2{font-size:24px}
  .cta-actions .btn{width:100%}
  .footer-top{flex-direction:column;gap:36px;padding-bottom:32px}
  .footer-cols{grid-template-columns:1fr;gap:28px;max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .hero-visual img{aspect-ratio:16/10}
  .hero-float{position:static;margin-top:14px;display:inline-block;min-width:0}
}
@media (max-width:480px){
  .cat-hero h1{font-size:26px}
  .brand-mark{width:32px;height:32px;font-size:15px}
  .brand-text{font-size:14.5px;white-space:normal;line-height:1.25;max-width:150px}
  .btn-sm{padding:0 12px}
  .accordion .accordion-title{font-size:16px;padding:0 18px;height:auto;min-height:56px;padding-top:14px;padding-bottom:14px}
  .accordion .accordion-content{padding:16px 18px 18px 24px}
}

/* roulang page: category4 */
:root{
  --brand-600:#1467D6;
  --brand-700:#0B4DA2;
  --brand-500:#2E86F0;
  --brand-100:#E7F1FE;
  --cyan-500:#17C3CE;
  --cyan-050:#D9F7F8;
  --coral-500:#FF7A45;
  --coral-050:#FFEDE4;
  --text-1:#10233A;
  --text-2:#5B6E85;
  --text-3:#8A9AAF;
  --line:#E4EDF7;
  --bg:#FFFFFF;
  --bg-soft:#F5F8FC;
  --ok:#17A673;
  --warn:#E9A21B;
  --err:#E04B4B;
  --radius-card:14px;
  --radius-sm:10px;
  --radius-img:12px;
  --shadow-sm:0 2px 8px rgba(16,45,80,.06);
  --shadow-md:0 8px 28px rgba(16,45,80,.08);
  --shadow-lg:0 18px 48px rgba(16,45,80,.12);
  --sp-4:4px; --sp-8:8px; --sp-12:12px; --sp-16:16px;
  --sp-24:24px; --sp-32:32px; --sp-48:48px; --sp-64:64px; --sp-96:96px;
}

/* ===== 基础重置 ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out;}
a:hover,a:focus{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;line-height:1.3;letter-spacing:.01em;color:var(--text-1);}
h1{font-size:44px;}
h2{font-size:32px;}
h3{font-size:22px;}
h4{font-size:18px;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:16px;color:var(--text-1);}
:focus-visible{outline:3px solid rgba(20,103,214,.28);outline-offset:2px;}
[id]{scroll-margin-top:96px;}

/* ===== 布局容器 ===== */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.container-narrow{
  width:100%;
  max-width:820px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0;}
.section-soft{background:var(--bg-soft);}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:40px;
}
.section-head h2{font-size:32px;}
.section-head .link-more{
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
}
.section-head .link-more i{font-size:12px;margin-left:4px;}
.section-desc{
  max-width:760px;
  color:var(--text-2);
  font-size:16.5px;
  margin-top:14px;
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 20px;
  border-radius:var(--radius-sm);
  font-size:16px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  transition:transform .2s ease-out,background-color .2s ease-out,color .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--coral-500);color:#fff;box-shadow:0 6px 18px rgba(255,122,69,.28);}
.btn-primary:hover,.btn-primary:focus{background:#F2672F;color:#fff;}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-500);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--brand-100);color:var(--brand-700);}
.btn-soft{background:var(--brand-100);color:var(--brand-700);border-color:transparent;}
.btn-soft:hover,.btn-soft:focus{background:#D6E7FD;color:var(--brand-700);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14.5px;}
.btn-lg{min-height:50px;padding:0 26px;font-size:17px;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}

/* ===== 徽章与标签 ===== */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  background:var(--brand-100);
  color:var(--brand-700);
}
.badge-coral{background:var(--coral-050);color:var(--coral-500);}
.badge-cyan{background:var(--cyan-050);color:#0E8E97;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:13px;
  color:var(--text-2);
  background:var(--bg-soft);
  border:1px solid var(--line);
}

/* ===== 头部品牌行 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
}
.brand-bar{border-bottom:1px solid var(--line);transition:box-shadow .24s ease-out,background-color .24s ease-out;}
.site-header.is-scrolled .brand-bar{box-shadow:var(--shadow-sm);background:rgba(255,255,255,.97);}
.brand-bar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:72px;
  transition:height .24s ease-out;
}
.site-header.is-scrolled .brand-bar-inner{height:60px;}
.brand-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-1);
  font-weight:700;
  font-size:19px;
  letter-spacing:.01em;
}
.brand-logo:hover,.brand-logo:focus{text-decoration:none;color:var(--brand-700);}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  border-radius:10px;
  background:var(--brand-600);
  color:#fff;
  font-size:18px;
  font-weight:700;
  flex:0 0 auto;
}
.brand-text{white-space:nowrap;}
.brand-links{display:flex;align-items:center;gap:26px;}
.brand-links a{
  font-size:15px;
  color:var(--text-2);
  position:relative;
  padding:4px 0;
}
.brand-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--brand-600);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease-out;
}
.brand-links a:hover,.brand-links a:focus{color:var(--brand-700);text-decoration:none;}
.brand-links a:hover::after{transform:scaleX(1);}
.brand-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;
  align-items:center;
  gap:6px;
  height:42px;
  padding:0 14px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:#fff;
  color:var(--text-1);
  font-size:15px;
  font-weight:600;
}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:8px 24px 16px;
}
.mobile-panel a{
  display:block;
  padding:12px 0;
  font-size:16px;
  color:var(--text-1);
  border-bottom:1px dashed var(--line);
}
.mobile-panel a:last-child{border-bottom:0;}

/* ===== 频道行 ===== */
.channel-bar{
  background:var(--bg-soft);
  border-bottom:1px solid var(--line);
  border-top:1px solid var(--line);
}
.channel-inner{display:flex;align-items:center;height:52px;}
.channel-scroll{
  display:flex;
  align-items:stretch;
  gap:6px;
  overflow-x:auto;
  scrollbar-width:none;
  width:100%;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel-scroll a{
  position:relative;
  display:inline-flex;
  align-items:center;
  white-space:nowrap;
  padding:0 16px;
  height:52px;
  font-size:15px;
  font-weight:600;
  color:var(--text-2);
  border-radius:8px 8px 0 0;
  transition:background-color .2s ease-out,color .2s ease-out;
}
.channel-scroll a:hover,.channel-scroll a:focus{
  color:var(--brand-700);
  background:#fff;
  text-decoration:none;
}
.channel-scroll a.is-active{
  color:var(--brand-600);
  background:var(--brand-100);
}
.channel-scroll a.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:0;
  height:2px;
  background:var(--brand-600);
  border-radius:2px;
}

/* ===== 面包屑 ===== */
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--text-3);
  padding:24px 0 0;
}
.crumb a{color:var(--text-3);}
.crumb a:hover,.crumb a:focus{color:var(--brand-600);}
.crumb .sep{color:#C3D2E4;}
.crumb .current{color:var(--text-2);}

/* ===== 分类 Hero ===== */
.page-hero{
  background:linear-gradient(180deg,#F7FBFF 0%,#FFFFFF 100%);
  padding-bottom:48px;
  border-bottom:1px solid var(--line);
}
.page-hero .grid-x{margin-top:28px;}
.hero-sub{
  font-size:18px;
  color:var(--text-2);
  margin-top:16px;
  max-width:560px;
  line-height:1.8;
}
.page-hero h1{
  font-size:44px;
  margin-top:18px;
  max-width:640px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-figure{
  position:relative;
  margin:0;
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-md);
  border:1px solid var(--line);
  background:#fff;
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;}
.hero-flag{
  position:absolute;
  right:16px;
  bottom:16px;
  background:var(--cyan-050);
  color:#0E8E97;
  font-size:13.5px;
  font-weight:600;
  padding:8px 14px;
  border-radius:10px;
  box-shadow:var(--shadow-sm);
}
.anchor-nav{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:36px;
  padding-top:24px;
  border-top:1px dashed var(--line);
}
.anchor-nav a{
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 16px;
  border-radius:var(--radius-sm);
  background:#fff;
  border:1px solid var(--line);
  font-size:14.5px;
  font-weight:600;
  color:var(--text-2);
}
.anchor-nav a:hover,.anchor-nav a:focus{
  border-color:var(--brand-500);
  color:var(--brand-700);
  background:var(--brand-100);
  text-decoration:none;
}

/* ===== 数据条 ===== */
.stat-strip{
  background:var(--brand-100);
  border-top:1px solid #D5E6FC;
  border-bottom:1px solid #D5E6FC;
  padding:28px 0;
}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.stat-item{text-align:left;padding-left:18px;border-left:3px solid var(--brand-500);}
.stat-value{font-size:32px;font-weight:700;color:var(--brand-700);line-height:1.2;font-variant-numeric:tabular-nums;}
.stat-value span{font-size:16px;font-weight:600;margin-left:4px;color:var(--brand-600);}
.stat-label{font-size:14px;color:var(--text-2);margin-top:6px;}

/* ===== 对照矩阵 ===== */
.compare-grid{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  background:#fff;
  box-shadow:var(--shadow-sm);
}
.compare-head{
  display:grid;
  grid-template-columns:1fr 1fr;
  background:var(--bg-soft);
  border-bottom:1px solid var(--line);
}
.compare-head-cell{
  display:flex;
  align-items:center;
  gap:8px;
  padding:16px 24px;
  font-weight:700;
  font-size:16px;
}
.compare-head-cell.is-yes{color:var(--brand-700);}
.compare-head-cell.is-no{color:var(--coral-500);border-left:1px solid var(--line);}
.compare-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  border-bottom:1px solid var(--line);
}
.compare-row:last-child{border-bottom:0;}
.compare-cell{padding:22px 24px;}
.compare-cell.is-no{border-left:1px solid var(--line);background:#FFFCFA;}
.compare-cell h4{font-size:17px;margin-bottom:8px;}
.compare-cell.is-yes h4{color:var(--brand-700);}
.compare-cell.is-no h4{color:#C4571F;}
.compare-cell p{font-size:15.5px;color:var(--text-2);margin:0;line-height:1.75;}
.compare-cell .mini-icon{margin-right:8px;font-size:14px;}
.compare-cell.is-yes .mini-icon{color:var(--ok);}
.compare-cell.is-no .mini-icon{color:var(--coral-500);}
.compare-note{
  margin-top:16px;
  font-size:14px;
  color:var(--text-3);
}

/* ===== 适配清单 ===== */
.spec-grid{gap:32px;}
.spec-list{display:flex;flex-direction:column;gap:14px;margin-top:24px;}
.spec-item{
  display:flex;
  gap:14px;
  padding:18px 20px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  transition:border-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;
}
.spec-item:hover{border-color:#C9E0FC;box-shadow:var(--shadow-sm);transform:translateY(-2px);}
.spec-icon{
  flex:0 0 auto;
  width:34px;height:34px;
  border-radius:9px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--brand-100);
  color:var(--brand-600);
  font-size:15px;
}
.spec-item h4{font-size:16.5px;margin-bottom:4px;}
.spec-item p{font-size:15px;color:var(--text-2);margin:0;line-height:1.7;}
.spec-media{position:relative;margin:0;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-md);}
.spec-media img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.spec-flag{
  position:absolute;
  left:18px;
  bottom:18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:12px 16px;
  box-shadow:var(--shadow-sm);
  font-size:14px;
  color:var(--text-2);
}
.spec-flag strong{display:block;color:var(--text-1);font-size:15.5px;margin-bottom:2px;}

/* ===== 站内入口卡 ===== */
.cms-list-slot{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.entry-card{
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-100);}
.entry-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.entry-body{padding:22px 24px 24px;}
.entry-body h3{font-size:19px;margin-bottom:10px;}
.entry-body p{font-size:15.5px;color:var(--text-2);margin:0 0 14px;line-height:1.75;}
.entry-meta{font-size:13px;color:var(--text-3);display:flex;gap:14px;align-items:center;}
.entry-link{font-size:15px;font-weight:600;}
.entry-link i{font-size:12px;margin-left:4px;}

/* ===== FAQ ===== */
.faq-wrap{
  background:#fff;
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  border:1px solid var(--line);
  padding:16px 24px;
  max-width:980px;
  margin:0 auto;
}
.accordion{margin:0;border:0;background:transparent;}
.accordion .accordion-item{border:0;margin-bottom:8px;}
.accordion .accordion-item:last-child{margin-bottom:0;}
.accordion .accordion-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:14px 8px;
  font-size:17px;
  font-weight:700;
  color:var(--text-1);
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
  transition:color .2s ease-out;
}
.accordion .accordion-title::before{
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  order:2;
  font-size:14px;
  color:var(--brand-600);
  transition:transform .22s ease-out;
  margin:0;
  position:static;
  flex:0 0 auto;
}
.accordion .accordion-title[aria-expanded="true"]::before{transform:rotate(45deg);}
.accordion .accordion-title:hover,.accordion .accordion-title:focus{
  color:var(--brand-700);
  background:transparent;
  text-decoration:none;
}
.accordion .accordion-content{
  background:var(--bg-soft);
  border:0;
  border-radius:var(--radius-sm);
  padding:18px 16px 18px 20px;
  margin-top:8px;
  font-size:15.5px;
  color:var(--text-2);
  line-height:1.8;
}
.accordion .accordion-content p:last-child{margin-bottom:0;}

/* ===== 轻量转化条 ===== */
.cta-band{
  background:var(--brand-100);
  border-radius:var(--radius-card);
  padding:44px 40px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  border:1px solid #D5E6FC;
}
.cta-band h2{font-size:26px;max-width:560px;}
.cta-band p{color:var(--text-2);font-size:16px;margin-top:10px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:96px;
  background:var(--bg-soft);
  border-top:1px solid var(--line);
  padding-top:64px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.1fr 2fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-brand p{color:var(--text-2);font-size:15.5px;margin-top:16px;max-width:320px;}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:8px;}
.footer-contact li{font-size:14.5px;color:var(--text-2);display:flex;gap:10px;align-items:center;}
.footer-contact i{color:var(--brand-500);font-size:14px;}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;}
.footer-col h4{font-size:16px;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14.5px;color:var(--text-2);}
.footer-col a:hover,.footer-col a:focus{color:var(--brand-600);text-decoration:underline;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  border-top:1px solid var(--line);
  padding-top:22px;
  padding-bottom:28px;
}
.footer-bottom p{font-size:13.5px;color:var(--text-3);margin:0;}
.footer-note{color:var(--text-3);}
.to-top{
  font-size:14px;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.to-top i{font-size:12px;}

/* ===== 浮动 CTA ===== */
.float-cta{
  position:fixed;
  right:24px;
  bottom:28px;
  z-index:80;
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:8px;
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .28s ease-out,transform .28s ease-out,visibility .28s;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-main{
  display:inline-flex;
  align-items:center;
  gap:10px;
  height:50px;
  padding:0 24px;
  border-radius:999px;
  background:var(--coral-500);
  color:#fff;
  font-weight:600;
  font-size:16px;
  box-shadow:0 12px 28px rgba(255,122,69,.32);
}
.float-main:hover,.float-main:focus{background:#F2672F;color:#fff;text-decoration:none;}
.float-sub{
  display:none;
  height:42px;
  padding:0 20px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  color:var(--text-2);
  font-size:14.5px;
  font-weight:600;
  align-items:center;
  box-shadow:var(--shadow-sm);
}
.float-cta:hover .float-sub,.float-cta:focus-within .float-sub{display:inline-flex;}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .container{padding:0 22px;}
  h1,.page-hero h1{font-size:38px;}
  h2,.section-head h2{font-size:28px;}
  .footer-top{grid-template-columns:1fr 1.6fr;gap:36px;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .brand-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-panel.is-open{display:block;}
  .page-hero h1{font-size:34px;}
  .spec-grid{gap:28px;}
  .spec-media{margin-top:32px;}
  .footer-top{grid-template-columns:1fr;gap:36px;}
  .compare-cell{padding:18px 20px;}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.8;}
  .container{padding:0 16px;}
  .container-narrow{padding:0 16px;}
  .section{padding:56px 0;}
  .brand-bar-inner{height:64px;gap:12px;}
  .site-header.is-scrolled .brand-bar-inner{height:58px;}
  .brand-text{font-size:16px;white-space:normal;line-height:1.25;max-width:170px;}
  .brand-mark{width:32px;height:32px;font-size:16px;}
  .brand-actions .btn-primary{display:none;}
  h1,.page-hero h1{font-size:30px;}
  h2,.section-head h2{font-size:24px;}
  h3{font-size:19px;}
  .hero-sub{font-size:16.5px;}
  .page-hero{padding-bottom:36px;}
  .anchor-nav{gap:8px;margin-top:26px;padding-top:20px;}
  .anchor-nav a{height:36px;padding:0 13px;font-size:13.5px;}
  .stat-grid{grid-template-columns:1fr;gap:18px;}
  .stat-item{padding-left:14px;}
  .stat-value{font-size:27px;}
  .compare-head,.compare-row{grid-template-columns:1fr;}
  .compare-head-cell.is-no,.compare-cell.is-no{border-left:0;border-top:1px solid var(--line);}
  .compare-head-cell{padding:14px 18px;font-size:15px;}
  .cms-list-slot{grid-template-columns:1fr;}
  .footer-cols{grid-template-columns:1fr 1fr;gap:26px;}
  .cta-band{padding:30px 22px;}
  .cta-band h2{font-size:22px;}
  .faq-wrap{padding:8px 16px;}
  .accordion .accordion-title{font-size:16px;min-height:52px;}
  .float-cta{
    right:0;left:0;bottom:0;
    flex-direction:row;
    justify-content:center;
    align-items:center;
    gap:0;
    padding:0;
  }
  .float-main{
    width:100%;
    height:56px;
    border-radius:0;
    justify-content:center;
    padding:0 calc(16px + env(safe-area-inset-right)) calc(0px + env(safe-area-inset-bottom)) calc(16px + env(safe-area-inset-left));
  }
  .float-sub{display:none !important;}
  .site-footer{padding-bottom:56px;}
}
@media (max-width:480px){
  .brand-text{max-width:132px;font-size:15px;}
  .hero-flag{right:12px;bottom:12px;font-size:12.5px;padding:6px 10px;}
  .footer-cols{grid-template-columns:1fr;}
  .btn{font-size:15px;}
  .page-hero h1{font-size:26px;}
}