/* roulang page: index */
:root{
  --ink-900:#101320;--ink-800:#171B2A;--ink-700:#232838;
  --bg:#F6F5F2;--surface:#FFFFFF;
  --brand:#FF7A2F;--brand-dark:#F06718;--accent:#1FD6A0;--accent-dark:#12B486;
  --text:#12141C;--text-2:#5A6072;--text-3:#8A90A0;--line:#E6E4DE;
  --on-ink:#F2F3F7;--on-ink-2:rgba(255,255,255,.68);--line-ink:rgba(255,255,255,.10);
  --ok:#1FD6A0;--warn:#FFB020;--err:#F0524D;
  --r-card:16px;--r-img:12px;--r-block:22px;--r-pill:999px;
  --s1:0 1px 2px rgba(16,19,32,.06),0 8px 24px rgba(16,19,32,.06);
  --s2:0 18px 40px rgba(16,19,32,.12);
  --bs-body-bg:#F6F5F2;--bs-body-color:#12141C;
  --bs-primary:#FF7A2F;--bs-primary-rgb:255,122,47;
  --bs-border-color:#E6E4DE;--bs-border-radius:16px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  --bs-link-color:#12B486;--bs-link-hover-color:#0E9C73;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--accent-dark);text-decoration:none;transition:color .18s ease}
a:hover{color:#0E9C73}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;line-height:1.25;color:var(--text);font-weight:700}
h1{font-size:32px;font-weight:800}
h2{font-size:24px;font-weight:700}
h3{font-size:18px}
h4{font-size:16px}
button{font-family:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,214,160,.35);border-radius:8px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:992px){.container{padding:0 32px}}
@media (min-width:1400px){.container{max-width:1280px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;flex:none}
.btn-lg{height:50px;padding:0 28px;font-size:16px}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(255,122,47,.22)}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 26px rgba(255,122,47,.35)}
.btn-brand:active{transform:translateY(1px)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--text)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent-dark);background:#fff}
.btn-ghost-ink{background:transparent;border-color:rgba(255,255,255,.28);color:var(--on-ink)}
.btn-ghost-ink:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.45)}
.btn-dark{background:var(--ink-900);color:#fff}
.btn-dark:hover{background:var(--ink-700);color:#fff}
.w-100{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--accent-dark)}
.link-arrow svg{width:15px;height:15px;transition:transform .18s ease}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 标签 / 徽章 ---------- */
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1;white-space:nowrap}
.tag-brand{background:var(--brand);color:#fff}
.tag-accent{background:rgba(31,214,160,.12);color:#0E9C73}
.tag-ink{background:var(--ink-900);color:var(--on-ink)}
.tag-outline-ink{border:1px solid rgba(255,255,255,.28);color:var(--on-ink)}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.08em;margin-bottom:10px}

/* ---------- 公告条 ---------- */
.notice-bar{background:var(--ink-900);border-bottom:1px solid var(--line-ink)}
.notice-inner{display:flex;align-items:center;gap:10px;min-height:38px;padding-top:6px;padding-bottom:6px;position:relative}
.notice-dot{width:7px;height:7px;border-radius:50%;background:var(--brand);flex:none;box-shadow:0 0 0 4px rgba(255,122,47,.18)}
.notice-inner p{font-size:13px;color:var(--on-ink-2);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.notice-close{background:none;border:0;color:var(--on-ink-2);font-size:18px;line-height:1;cursor:pointer;padding:0 4px}
.notice-close:hover{color:#fff}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:var(--ink-900);border-bottom:1px solid var(--line-ink);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--s2)}
.nav-wrap{display:flex;align-items:center;gap:18px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--brand),#FF9F5E);display:flex;align-items:center;justify-content:center;flex:none}
.brand-mark svg{width:19px;height:19px;color:#fff}
.brand-text{font-size:17px;font-weight:700;color:var(--on-ink);letter-spacing:0}
.brand:hover .brand-text{color:#fff}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{position:relative;display:inline-flex;align-items:center;height:68px;padding:0 14px;font-size:15px;color:var(--on-ink-2);font-weight:500;transition:color .18s ease}
.nav-link:hover{color:#fff}
.nav-link.active{color:#fff;font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--brand);border-radius:2px}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{position:relative;display:flex;align-items:center;width:220px;height:40px;border-radius:var(--r-pill);background:rgba(255,255,255,.08);border:1px solid transparent;transition:border-color .18s ease,box-shadow .18s ease}
.nav-search svg{position:absolute;left:14px;width:16px;height:16px;color:var(--on-ink-2)}
.nav-search input{width:100%;height:100%;background:none;border:0;padding:0 16px 0 38px;color:var(--on-ink);font-size:14px;outline:none}
.nav-search input::placeholder{color:rgba(255,255,255,.45)}
.nav-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(31,214,160,.28)}
.nav-burger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.2);background:transparent;padding:0;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-burger span{display:block;width:18px;height:2px;background:var(--on-ink);border-radius:2px}

/* ---------- 抽屉 ---------- */
.nav-drawer{position:fixed;inset:0 0 0 auto;width:min(88vw,360px);background:var(--ink-900);z-index:1050;transform:translateX(100%);transition:transform .3s ease;display:flex;flex-direction:column;padding:20px;overflow-y:auto}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(16,19,32,.6);z-index:1040;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line-ink)}
.drawer-close{background:none;border:0;color:var(--on-ink-2);font-size:26px;line-height:1;cursor:pointer}
.drawer-close:hover{color:#fff}
.drawer-menu{display:flex;flex-direction:column;padding:14px 0;flex:1}
.drawer-link{display:flex;align-items:center;height:44px;padding:0 12px;border-radius:12px;color:var(--on-ink-2);font-size:15px}
.drawer-link:hover{background:rgba(255,255,255,.06);color:#fff}
.drawer-link.active{background:rgba(255,122,47,.14);color:#fff;font-weight:600}
.drawer-foot{padding-top:16px;border-top:1px solid var(--line-ink);display:flex;flex-direction:column;gap:10px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink-900);color:var(--on-ink)}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.42}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(16,19,32,.95) 0%,rgba(16,19,32,.86) 46%,rgba(16,19,32,.62) 100%)}
.hero-bg::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);background-size:24px 24px;opacity:.5}
.hero-inner{position:relative;display:grid;grid-template-columns:1fr;gap:32px;padding-top:56px;padding-bottom:56px}
.hero-copy{max-width:620px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.hero h1{color:#fff;font-size:32px;line-height:1.28;margin-bottom:16px}
.hero-sub{font-size:16px;color:var(--on-ink-2);max-width:540px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 26px}
.hero-points{display:flex;flex-wrap:wrap;gap:14px 26px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--on-ink-2)}
.hero-points svg{width:16px;height:16px;color:var(--accent);flex:none}
.hero-visual{position:relative}
.hero-card{border-radius:var(--r-block);overflow:hidden;border:1px solid rgba(255,255,255,.16);box-shadow:0 24px 60px rgba(255,122,47,.22);background:var(--ink-800)}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-float{position:absolute;left:-10px;bottom:-18px;background:var(--ink-800);border:1px solid var(--line-ink);border-radius:16px;padding:14px 18px;display:flex;flex-direction:column;gap:2px;box-shadow:var(--s2)}
.hero-float-num{font-size:24px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.1}
.hero-float-label{font-size:12px;color:var(--on-ink-2)}

/* ---------- 快捷入口 ---------- */
.quick-band{background:var(--surface);border-bottom:1px solid var(--line)}
.quick-list{display:flex;gap:12px;overflow-x:auto;padding:22px 0;scrollbar-width:none}
.quick-list::-webkit-scrollbar{display:none}
.quick-item{display:flex;flex-direction:column;align-items:center;gap:10px;min-width:104px;flex:1;padding:14px 8px;border-radius:var(--r-card);border:1px solid transparent;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.quick-item:hover{transform:translateY(-3px);border-color:var(--line);box-shadow:var(--s1)}
.quick-icon{width:52px;height:52px;border-radius:50%;background:rgba(255,122,47,.10);display:flex;align-items:center;justify-content:center;color:var(--brand)}
.quick-icon svg{width:23px;height:23px}
.quick-label{font-size:14px;font-weight:600;color:var(--text);white-space:nowrap}

/* ---------- 板块通用 ---------- */
.section{padding:56px 0}
@media (min-width:992px){.section{padding:88px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{max-width:680px}
.section-intro{font-size:15px;color:var(--text-2);max-width:660px;margin-top:10px}

/* ---------- 阶梯 ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(1,1fr);gap:20px}
.tier-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 22px 22px;box-shadow:var(--s1);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.tier-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--line)}
.tier-card:nth-child(1)::before{background:#D6D3CB}
.tier-card:nth-child(2)::before{background:#9FD8C6}
.tier-card:nth-child(3)::before{background:var(--accent)}
.tier-card:nth-child(4)::before{background:var(--brand)}
.tier-card:hover{transform:translateY(-4px);box-shadow:var(--s2);border-color:rgba(31,214,160,.35)}
.tier-num{display:block;font-size:34px;font-weight:800;color:rgba(16,19,32,.10);font-variant-numeric:tabular-nums;line-height:1;margin-bottom:10px;font-family:"DIN Alternate","Barlow",sans-serif}
.tier-card h3{margin-bottom:12px}
.tier-card ul{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.tier-card li{position:relative;padding-left:18px;font-size:14px;color:var(--text-2)}
.tier-card li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--brand)}
.tier-threshold{font-size:13px;color:var(--text-3);margin-bottom:16px;padding-top:14px;border-top:1px dashed var(--line)}
.tier-threshold b{color:var(--text);font-size:15px;font-weight:700}

/* ---------- 对比矩阵 ---------- */
.compare-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--s1)}
table.compare-table{width:100%;min-width:680px;border-collapse:collapse}
.compare-table th,.compare-table td{padding:16px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line)}
.compare-table thead th{background:var(--ink-900);color:var(--on-ink);font-size:14px;font-weight:600;border-bottom:0;white-space:nowrap}
.compare-table thead th:first-child{color:var(--on-ink-2)}
.compare-table tbody th{width:24%;font-weight:600;color:var(--text)}
.compare-table tbody tr:nth-child(even){background:#FAFAF8}
.compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table td{color:var(--text-2)}
.compare-table .is-featured{background:rgba(255,122,47,.06);border-left:1px solid rgba(255,122,47,.28);border-right:1px solid rgba(255,122,47,.28)}
.compare-table thead .is-featured{background:#1B2030;border-left-color:rgba(255,122,47,.5);border-right-color:rgba(255,122,47,.5);color:#fff}
.compare-table tbody tr:last-child .is-featured{border-bottom:1px solid rgba(255,122,47,.28)}
.cell-yes{color:var(--accent-dark);font-weight:700}
.cell-no{color:var(--text-3)}
.compare-hint{margin-top:14px;font-size:13px;color:var(--text-3)}
.rec-tag{display:inline-flex;align-items:center;height:20px;padding:0 8px;margin-left:8px;border-radius:var(--r-pill);background:var(--brand);color:#fff;font-size:11px;font-weight:700}

/* ---------- 限时区块 ---------- */
.limit-section{padding:0}
.limit-box{position:relative;overflow:hidden;background:var(--ink-900);border-radius:var(--r-block);padding:36px 24px;color:var(--on-ink)}
.limit-box::after{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(255,122,47,.35),transparent 68%)}
.limit-inner{position:relative;display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
.limit-title{font-size:24px;color:#fff;margin-bottom:10px}
.limit-desc{font-size:14px;color:var(--on-ink-2);max-width:420px}
.countdown{display:flex;gap:12px;margin-top:20px}
.cd-cell{width:56px;height:62px;border-radius:14px;background:rgba(255,255,255,.07);border:1px solid var(--line-ink);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px}
.cd-num{font-size:22px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1;font-family:"DIN Alternate","Barlow",sans-serif}
.cd-label{font-size:11px;color:var(--on-ink-2)}
.limit-actions{display:flex;flex-direction:column;gap:14px}
.limit-actions .btn-row{display:flex;flex-wrap:wrap;gap:12px}
.limit-tips{display:flex;flex-direction:column;gap:8px}
.limit-tips li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--on-ink-2)}
.limit-tips svg{width:15px;height:15px;color:var(--accent);flex:none}

/* ---------- 内容列表 ---------- */
.post-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--s1);height:100%;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--s2);border-color:rgba(31,214,160,.35)}
.post-media{display:block;overflow:hidden;background:var(--ink-800)}
.post-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease}
.post-card:hover .post-media img{transform:scale(1.03)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.post-title{font-size:17px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-title a{color:var(--text)}
.post-title a:hover{color:var(--brand)}
.post-excerpt{font-size:14px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card-lg .post-title{font-size:22px}
.post-card-lg .post-body{padding:24px 26px 26px}
.post-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-3);margin-top:auto}
.post-card-h{display:flex;gap:16px;padding:16px;align-items:center}
.post-card-h .post-media{width:132px;flex:none;border-radius:var(--r-img)}
.post-card-h .post-body{padding:0;gap:8px}
.post-card-h .post-title{font-size:16px}
.empty-state{background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-card);padding:56px 24px;text-align:center}
.empty-state svg{width:40px;height:40px;color:var(--text-3);margin-bottom:14px}
.empty-state p{font-size:15px;color:var(--text-2)}
.empty-state .btn{margin-top:18px}

/* ---------- 表单 ---------- */
.contact-section{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.contact-grid{display:grid;grid-template-columns:1fr;gap:36px}
.contact-points{display:flex;flex-direction:column;gap:16px;margin-top:22px}
.contact-points li{display:flex;gap:12px;align-items:flex-start}
.point-ico{width:34px;height:34px;border-radius:10px;background:rgba(31,214,160,.12);display:flex;align-items:center;justify-content:center;color:var(--accent-dark);flex:none}
.point-ico svg{width:17px;height:17px}
.contact-points h4{font-size:15px;margin-bottom:2px}
.contact-points p{font-size:14px;color:var(--text-2)}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-block);padding:26px;box-shadow:var(--s2)}
.form-field{margin-bottom:18px}
.form-field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.form-field label .req{color:var(--err)}
.form-control,.form-select{width:100%;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;padding:0 14px;font-size:14px;color:var(--text);outline:none;transition:border-color .18s ease,box-shadow .18s ease;font-family:inherit}
textarea.form-control{height:120px;padding:12px 14px;resize:vertical;line-height:1.7}
.form-control:focus,.form-select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(31,214,160,.28)}
.form-control::placeholder{color:var(--text-3)}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);margin-bottom:20px}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand);flex:none}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item:hover{border-color:rgba(31,214,160,.35)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:none;border:0;padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);cursor:pointer;line-height:1.5}
.faq-q .icon{width:22px;height:22px;flex:none;color:var(--brand);transition:transform .25s ease}
.faq-item.is-open{border-color:rgba(255,122,47,.4);box-shadow:var(--s1)}
.faq-item.is-open .faq-q{border-left:3px solid var(--brand);padding-left:19px}
.faq-item.is-open .icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 22px 22px;font-size:14px;color:var(--text-2);line-height:1.85}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 56px}
@media (min-width:992px){.cta-section{padding:0 0 88px}}
.cta-box{background:var(--ink-900);border-radius:var(--r-block);padding:32px 24px;display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;position:relative;overflow:hidden}
.cta-box::before{content:"";position:absolute;left:-60px;bottom:-90px;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,rgba(31,214,160,.28),transparent 70%)}
.cta-box h3{color:#fff;font-size:22px;position:relative}
.cta-box p{color:var(--on-ink-2);font-size:14px;margin-top:6px;position:relative}
.cta-box .btn{position:relative}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:var(--on-ink-2);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:40px}
.footer-brand .brand{gap:10px;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;max-width:320px}
.footer-col h4{color:var(--on-ink);font-size:15px;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col li{font-size:14px;color:var(--on-ink-2)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid var(--line-ink);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- 移动底栏 ---------- */
.mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:1020;background:var(--ink-900);border-top:1px solid var(--line-ink);padding:8px 16px calc(8px + env(safe-area-inset-bottom));display:flex;gap:12px;align-items:center}
.mobile-bar .btn{flex:1;height:44px;padding:0 12px;font-size:14px}

@media (max-width:991px){
  .nav-menu,.nav-search,.nav-right .btn-ghost-ink{display:none}
  .nav-right .btn-brand{display:none}
  .nav-burger{display:flex}
  .nav-wrap{height:60px}
  .brand-text{font-size:15px}
}
@media (min-width:768px){
  .hero-inner{grid-template-columns:1fr 1fr;align-items:center;padding-top:72px;padding-bottom:72px}
  .hero h1{font-size:38px}
  .tier-grid{grid-template-columns:repeat(2,1fr)}
  .limit-inner{grid-template-columns:1.25fr .85fr}
  .contact-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr}
}
@media (min-width:992px){
  .hero h1{font-size:48px}
  .hero-inner{padding-top:88px;padding-bottom:88px}
  .tier-grid{grid-template-columns:repeat(4,1fr)}
  .mobile-bar{display:none}
  .nav-burger{display:none}
}
@media (max-width:575px){
  .hero h1{font-size:28px}
  .section{padding:48px 0}
  .post-card-lg .post-title{font-size:19px}
  .post-card-h{flex-direction:column;align-items:stretch}
  .post-card-h .post-media{width:100%}
  .limit-box{padding:28px 18px}
  .cd-cell{width:52px;height:58px}
  body{padding-bottom:64px}
}

/* roulang page: article */
:root{
  --ink-900:#101320;
  --ink-800:#171B2A;
  --ink-700:#232838;
  --bg:#F6F5F2;
  --surface:#FFFFFF;
  --brand:#FF7A2F;
  --brand-soft:rgba(255,122,47,.12);
  --accent:#1FD6A0;
  --accent-soft:rgba(31,214,160,.10);
  --text:#12141C;
  --text-2:#5A6072;
  --text-3:#8A90A0;
  --line:#E6E4DE;
  --on-ink:#F2F3F7;
  --on-ink-2:rgba(255,255,255,.68);
  --ink-line:rgba(255,255,255,.10);
  --warn:#FFB020;
  --error:#F0524D;
  --r-card:16px;
  --r-img:12px;
  --r-dark:22px;
  --r-input:12px;
  --s1:0 1px 2px rgba(16,19,32,.06),0 8px 24px rgba(16,19,32,.06);
  --s2:0 18px 40px rgba(16,19,32,.12);
  --bs-body-bg:#F6F5F2;
  --bs-body-color:#12141C;
  --bs-border-radius:12px;
  --bs-primary-rgb:255,122,47;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  --bs-link-color:#1FD6A0;
  --bs-link-hover-color:#12b184;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--accent);text-decoration:none;}
a:hover{color:#12b184;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{line-height:1.28;font-weight:700;color:var(--text);margin:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,214,160,.28);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:992px){ .container{padding:0 32px;} }
@media (min-width:1400px){ .container{max-width:1280px;} }

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn svg{width:16px;height:16px;flex:0 0 auto;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-brand{background:var(--brand);color:#fff;}
.btn-brand:hover{background:#ff8b48;color:#fff;transform:translateY(-1px);box-shadow:0 10px 26px rgba(255,122,47,.35);}
.btn-brand:active{transform:translateY(1px);}
.btn-ghost-ink{background:transparent;border-color:rgba(255,255,255,.28);color:var(--on-ink);}
.btn-ghost-ink:hover{background:rgba(255,255,255,.08);color:#fff;}
.btn-outline{background:#fff;border-color:var(--line);color:var(--text);}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);background:#fff;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--accent);}
.link-arrow svg{width:15px;height:15px;transition:transform .2s ease;}
.link-arrow:hover{text-decoration:underline;text-underline-offset:3px;}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--ink-900);
  border-bottom:1px solid var(--ink-line);
}
.site-header.is-scrolled{box-shadow:var(--s2);}
.nav-wrap{display:flex;align-items:center;gap:22px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--on-ink);font-size:17px;font-weight:700;white-space:nowrap;}
.brand:hover{color:#fff;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),#ff9c5c);color:#fff;flex:0 0 auto;
}
.brand-mark svg{width:19px;height:19px;}
.nav-menu{display:flex;align-items:center;gap:22px;margin-left:6px;}
.nav-link{
  position:relative;color:rgba(255,255,255,.68);font-size:15px;padding:6px 0;
  transition:color .18s ease;text-decoration:none;
}
.nav-link:hover{color:#fff;}
.nav-link.active{color:#fff;}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--brand);border-radius:2px;
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search svg{position:absolute;left:12px;width:16px;height:16px;color:rgba(255,255,255,.5);pointer-events:none;}
.nav-search input{
  width:220px;height:40px;border-radius:999px;border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.08);color:#fff;padding:0 14px 0 36px;font-size:14px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-search input::placeholder{color:rgba(255,255,255,.45);}
.nav-search input:focus{border-color:var(--accent);background:rgba(255,255,255,.12);box-shadow:0 0 0 3px rgba(31,214,160,.28);}
.nav-burger{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
  background:transparent;padding:0;position:relative;
}
.nav-burger span{
  position:absolute;left:11px;right:11px;height:2px;background:var(--on-ink);border-radius:2px;
  transition:transform .22s ease,opacity .22s ease;
}
.nav-burger span:nth-child(1){top:13px;}
.nav-burger span:nth-child(2){top:19px;}
.nav-burger span:nth-child(3){top:25px;}
.site-header.nav-open .nav-burger span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.site-header.nav-open .nav-burger span:nth-child(2){opacity:0;}
.site-header.nav-open .nav-burger span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

@media (max-width:991.98px){
  .nav-wrap{height:60px;gap:12px;}
  .brand{font-size:16px;}
  .nav-search{display:none;}
  .nav-burger{display:block;}
  .nav-menu{
    position:fixed;left:0;right:0;top:60px;bottom:0;z-index:1040;
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    background:var(--ink-900);padding:10px 20px 96px;
    transform:translateX(-100%);transition:transform .28s ease;overflow-y:auto;
  }
  .site-header.nav-open .nav-menu{transform:translateX(0);}
  .nav-link{padding:14px 0;font-size:16px;border-bottom:1px solid var(--ink-line);}
  .nav-link.active::after{display:none;}
  .nav-link.active{color:var(--brand);}
}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--ink-800);border-bottom:1px solid var(--ink-line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--on-ink-2);padding:12px 0;}
.crumb a{color:rgba(255,255,255,.72);text-decoration:none;}
.crumb a:hover{color:#fff;}
.crumb .sep{color:rgba(255,255,255,.34);}
.crumb .current{color:#fff;max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;background:var(--ink-900) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:var(--on-ink);padding:48px 0 56px;overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(16,19,32,.94) 0%,rgba(16,19,32,.86) 52%,rgba(16,19,32,.72) 100%);
}
.article-hero .container{position:relative;z-index:2;}
.hero-tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px;}
.chip-solid{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand);color:#fff;font-size:12px;font-weight:600;
}
.chip-ink{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(255,255,255,.10);color:var(--on-ink);font-size:12px;
}
.chip-accent{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent);font-size:12px;font-weight:600;
}
.article-hero h1{
  color:#fff;font-size:34px;font-weight:800;line-height:1.3;margin-bottom:18px;
  max-width:900px;overflow-wrap:anywhere;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;font-size:13.5px;color:var(--on-ink-2);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.3);}
@media (min-width:992px){ .article-hero{padding:60px 0 68px;} .article-hero h1{font-size:42px;} }

/* ---------- 主体布局 ---------- */
.article-main{padding:48px 0 72px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;}
@media (min-width:992px){
  .article-layout{grid-template-columns:minmax(0,760px) 320px;gap:48px;justify-content:space-between;}
}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--s1);}
.cover-wrap{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:var(--surface);box-shadow:var(--s1);}
.cover-wrap img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-card);}
.cover-caption{font-size:13px;color:var(--text-3);text-align:center;padding:10px 16px 14px;margin:0;}

.article-body{padding:32px 24px 8px;}
@media (min-width:992px){ .article-body{padding:40px 44px 12px;} }
.article-body>*+*{margin-top:20px;}
.article-body p{font-size:17px;line-height:1.9;color:#242833;overflow-wrap:anywhere;}
.article-body h2{
  font-size:24px;font-weight:700;margin-top:40px;padding-left:14px;position:relative;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--brand);
}
.article-body h3{font-size:20px;font-weight:700;margin-top:32px;color:var(--text);}
.article-body ul,.article-body ol{padding-left:4px;}
.article-body ul li,.article-body ol li{
  position:relative;padding-left:22px;margin-top:10px;font-size:16.5px;line-height:1.85;color:#2b3040;
}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:11px;width:8px;height:8px;border-radius:2px;background:var(--brand);
}
.article-body ol{counter-reset:cmsol;}
.article-body ol li{counter-increment:cmsol;}
.article-body ol li::before{
  content:counter(cmsol);position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:6px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:700;display:grid;place-items:center;
}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--accent);
  background:var(--accent-soft);border-radius:0 12px 12px 0;color:#233;font-size:16.5px;
}
.article-body blockquote p{font-size:16.5px;color:#233;}
.article-body img{border-radius:var(--r-img);box-shadow:var(--s1);margin:24px auto;}
.article-body a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:#12b184;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;display:block;overflow-x:auto;}
.article-body table thead th{background:var(--ink-800);color:#fff;font-weight:600;text-align:left;padding:12px 14px;white-space:nowrap;}
.article-body table tbody td{padding:12px 14px;border-bottom:1px solid var(--line);}
.article-body table tbody tr:nth-child(even){background:#FAFAF8;}
.article-body code{background:#F1F0EC;padding:2px 6px;border-radius:6px;font-size:14px;}

/* ---------- 文末 ---------- */
.article-foot{padding:24px 24px 32px;border-top:1px solid var(--line);margin-top:32px;}
@media (min-width:992px){ .article-foot{padding:28px 44px 36px;} }
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  background:var(--accent-soft);color:#0f9a73;font-size:13px;border:1px solid rgba(31,214,160,.22);
  transition:background .2s ease,transform .2s ease;
}
.tag:hover{background:rgba(31,214,160,.18);transform:translateY(-1px);color:#0f9a73;}
.foot-nav{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;}
.mini-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);
  border:1px solid var(--line);background:#fff;border-radius:999px;height:38px;padding:0 16px;
  transition:border-color .2s ease,color .2s ease;
}
.mini-link:hover{border-color:var(--accent);color:var(--accent);}
.mini-link svg{width:15px;height:15px;}

/* ---------- 侧栏 ---------- */
.side{display:flex;flex-direction:column;gap:24px;}
@media (min-width:992px){ .side{position:sticky;top:92px;align-self:start;} }
.widget{padding:22px;}
.widget-title{display:flex;align-items:center;gap:9px;font-size:17px;font-weight:700;margin-bottom:16px;}
.widget-title::before{content:"";width:4px;height:17px;border-radius:3px;background:var(--brand);}
.hot-list li+li{border-top:1px dashed var(--line);}
.hot-list a{display:flex;gap:12px;padding:12px 0;color:var(--text-2);font-size:14.5px;line-height:1.55;text-decoration:none;transition:color .2s ease;}
.hot-list a:hover{color:var(--brand);}
.hot-list .num{
  flex:0 0 auto;width:22px;height:22px;border-radius:7px;display:grid;place-items:center;
  background:#F1F0EC;color:var(--text-3);font-size:12px;font-weight:700;font-variant-numeric:tabular-nums;
}
.hot-list li:nth-child(1) .num{background:var(--brand);color:#fff;}
.hot-list li:nth-child(2) .num{background:var(--brand-soft);color:var(--brand);}
.hot-list li:nth-child(3) .num{background:var(--brand-soft);color:var(--brand);}
.hot-list .txt{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere;
}
.quick-card{
  background:var(--ink-900) url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  border-radius:var(--r-card);padding:24px;color:var(--on-ink);position:relative;overflow:hidden;
}
.quick-card::before{content:"";position:absolute;inset:0;background:rgba(16,19,32,.86);}
.quick-card>*{position:relative;z-index:2;}
.quick-card h3{color:#fff;font-size:17px;margin-bottom:8px;}
.quick-card p{color:var(--on-ink-2);font-size:13.5px;line-height:1.7;margin-bottom:16px;}
.quick-actions{display:flex;flex-direction:column;gap:10px;}

/* ---------- 相关推荐 ---------- */
.related{padding:56px 0 8px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap;}
.section-head h2{font-size:26px;font-weight:700;position:relative;padding-left:14px;}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--brand);}
.section-head p{font-size:14px;color:var(--text-2);margin-top:6px;}
.related-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){ .related-grid{grid-template-columns:repeat(2,1fr);} }
@media (min-width:992px){ .related-grid{grid-template-columns:1.2fr 1fr 1fr;} }
.rcard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--s1);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rcard:hover{transform:translateY(-2px);box-shadow:var(--s2);border-color:rgba(31,214,160,.35);}
.rcard .thumb{overflow:hidden;}
.rcard .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform .35s ease;}
.rcard:hover .thumb img{transform:scale(1.03);}
.rcard .rc-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;}
.rcard h3{font-size:17px;font-weight:700;line-height:1.45;}
.rcard h3 a{color:var(--text);text-decoration:none;}
.rcard h3 a:hover{color:var(--brand);}
.rcard p{font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere;}

/* ---------- 空态 ---------- */
.empty-state{padding:64px 24px;text-align:center;background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-card);}
.empty-state svg{width:52px;height:52px;color:var(--text-3);margin:0 auto 16px;}
.empty-state h2{font-size:20px;margin-bottom:10px;}
.empty-state p{font-size:14.5px;color:var(--text-2);margin-bottom:20px;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  margin:64px 0 0;background:var(--ink-900) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:var(--on-ink);position:relative;overflow:hidden;
}
.cta-band::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,19,32,.95),rgba(16,19,32,.78));}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;padding:36px 0;}
.cta-inner h2{color:#fff;font-size:22px;font-weight:700;margin-bottom:6px;}
.cta-inner p{color:var(--on-ink-2);font-size:14.5px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:var(--on-ink-2);padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:40px;}
@media (min-width:768px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;} }
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.8;max-width:34ch;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:var(--on-ink-2);font-size:14px;text-decoration:none;transition:color .2s ease;}
.footer-col a:hover{color:var(--accent);}
.footer-col li{font-size:14px;}
.footer-bottom{
  border-top:1px solid var(--ink-line);padding:18px 0 26px;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);
}

@media (max-width:575.98px){
  .article-hero h1{font-size:26px;}
  .article-body{padding:24px 18px 4px;}
  .article-body p{font-size:16px;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18px;}
  .article-foot{padding:20px 18px 26px;}
  .widget{padding:18px;}
  .cta-inner{padding:28px 0;}
  .cta-inner h2{font-size:19px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .mini-link{width:100%;justify-content:center;}
}

/* roulang page: category1 */
:root{
  --ink-900:#101320;
  --ink-800:#171B2A;
  --ink-700:#232838;
  --bg:#F6F5F2;
  --surface:#FFFFFF;
  --brand:#FF7A2F;
  --brand-hi:#FF8B47;
  --accent:#1FD6A0;
  --text:#12141C;
  --text-2:#5A6072;
  --text-3:#8A90A0;
  --line:#E6E4DE;
  --on-ink:#F2F3F7;
  --on-ink-2:rgba(255,255,255,.68);
  --ink-line:rgba(255,255,255,.10);
  --success:#1FD6A0;
  --warn:#FFB020;
  --error:#F0524D;
  --r-card:16px;
  --r-img:12px;
  --r-blk:22px;
  --r-input:12px;
  --r-pill:999px;
  --s1:0 1px 2px rgba(16,19,32,.06),0 8px 24px rgba(16,19,32,.06);
  --s2:0 18px 40px rgba(16,19,32,.12);
  --focus:0 0 0 3px rgba(31,214,160,.28);

  --bs-primary-rgb:255,122,47;
  --bs-body-bg:#F6F5F2;
  --bs-body-color:#12141C;
  --bs-border-radius:16px;
  --bs-border-color:#E6E4DE;
  --bs-link-color:#1FD6A0;
  --bs-link-hover-color:#12b585;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",sans-serif;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none;transition:color .18s ease}
a:hover{color:#12b585}
p{margin:0 0 16px}
h1,h2,h3,h4{margin:0 0 12px;line-height:1.25;color:var(--text)}
h1{font-size:48px;font-weight:800}
h2{font-size:30px;font-weight:700}
h3{font-size:20px;font-weight:700}
h4{font-size:17px;font-weight:700}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:8px}
::selection{background:rgba(255,122,47,.22)}

.container,
.container-lg,
.container-md,
.container-sm,
.container-xl{max-width:1200px;width:100%;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:992px){
  .container,.container-lg,.container-md,.container-sm,.container-xl{padding-left:32px;padding-right:32px}
}
@media (min-width:1400px){
  .container,.container-lg,.container-md,.container-sm,.container-xl{max-width:1280px}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;text-decoration:none;white-space:nowrap;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
}
.btn svg{width:16px;height:16px}
.btn-brand{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-brand:hover{background:var(--brand-hi);color:#fff;transform:translateY(-1px);box-shadow:0 10px 26px rgba(255,122,47,.35)}
.btn-brand:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:#fff;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.btn-ghost-ink{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
.btn-ghost-ink:hover{background:rgba(255,255,255,.08);color:#fff}
.btn-outline-brand{background:#fff;color:var(--brand);border-color:rgba(255,122,47,.45)}
.btn-outline-brand:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:var(--ink-900);
  border-bottom:1px solid var(--ink-line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 18px 40px rgba(10,12,22,.4)}
.nav-wrap{display:flex;align-items:center;height:68px;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--on-ink);font-weight:700;font-size:17px}
.brand:hover{color:#fff}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  display:grid;place-items:center;
  background:rgba(255,122,47,.16);color:var(--brand);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:24px}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;color:rgba(255,255,255,.7);
  transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-link.active{color:#fff;font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:2px;
  width:20px;height:2px;border-radius:2px;background:var(--brand);
  transform:translateX(-50%);
}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;width:220px;
  padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.08);
  border:1px solid var(--ink-line);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search svg{width:16px;height:16px;color:rgba(255,255,255,.5);flex:0 0 auto}
.nav-search input{
  width:100%;background:transparent;border:0;outline:none;
  color:#fff;font-size:14px;
}
.nav-search input::placeholder{color:rgba(255,255,255,.45)}
.nav-search:focus-within{border-color:var(--accent);box-shadow:var(--focus)}
.nav-burger{
  display:none;width:40px;height:40px;border-radius:12px;
  background:rgba(255,255,255,.08);border:1px solid var(--ink-line);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.nav-burger span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:transform .2s ease,opacity .2s ease}
.nav-burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger.is-open span:nth-child(2){opacity:0}
.nav-burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media (max-width:991px){
  .nav-wrap{height:60px;gap:12px}
  .nav-menu{
    position:fixed;left:0;right:0;top:60px;bottom:0;
    margin-left:0;flex-direction:column;align-items:stretch;gap:6px;
    padding:20px;background:var(--ink-900);
    transform:translateX(100%);transition:transform .28s ease;
    z-index:190;overflow-y:auto;
  }
  .nav-menu.is-open{transform:translateX(0)}
  .nav-link{padding:14px 16px;font-size:16px;border-radius:12px}
  .nav-link.active{background:rgba(255,122,47,.14)}
  .nav-link.active::after{display:none}
  .nav-search{display:none}
  .nav-burger{display:flex}
  .brand-text{font-size:16px}
}

/* ---------- 面包屑 ---------- */
.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--on-ink-2);margin-bottom:20px;
}
.breadcrumbs a{color:var(--on-ink-2)}
.breadcrumbs a:hover{color:#fff}
.breadcrumbs span.sep{color:rgba(255,255,255,.35)}
.breadcrumbs .current{color:#fff}

/* ---------- 页面首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--ink-900);
  color:var(--on-ink);
  padding:56px 0 64px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.42;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:18px 18px;
  opacity:.5;
}
.page-hero .container{position:relative;z-index:2}
.hero-badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1;
}
.badge-ink{background:rgba(255,255,255,.10);color:var(--on-ink);border:1px solid var(--ink-line)}
.badge-brand{background:var(--brand);color:#fff}
.badge-accent{background:rgba(31,214,160,.14);color:var(--accent);border:1px solid rgba(31,214,160,.28)}
.badge-soft{background:rgba(31,214,160,.08);color:#12b585}

.page-hero h1{
  color:#fff;font-size:48px;font-weight:800;
  max-width:860px;margin-bottom:18px;
}
.page-hero .hero-lead{
  max-width:720px;font-size:17px;line-height:1.9;
  color:var(--on-ink-2);margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.hero-points{
  list-style:none;padding:0;margin:0;
  display:flex;flex-wrap:wrap;gap:24px;
}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--on-ink-2)}
.hero-points svg{width:16px;height:16px;color:var(--accent)}

@media (max-width:991px){
  .page-hero{padding:36px 0 44px}
  .page-hero h1{font-size:32px}
  .page-hero .hero-lead{font-size:16px}
}
@media (max-width:575px){
  .page-hero h1{font-size:28px}
  .hero-points{gap:12px}
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-sm{padding:56px 0}
.section-title{max-width:760px;margin-bottom:36px}
.section-title h2{position:relative;padding-left:16px}
.section-title h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:4px;background:var(--brand);
}
.section-title p{color:var(--text-2);margin:10px 0 0;font-size:16px}
@media (max-width:767px){
  .section{padding:48px 0}
  .section-sm{padding:36px 0}
  .section-title{margin-bottom:24px}
  h1{font-size:32px}
  h2{font-size:24px}
}

/* ---------- 分类胶囊导航 ---------- */
.cat-chips{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:8px}
.cat-chip{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  color:var(--text);font-size:15px;font-weight:600;
  transition:border-color .18s ease,color .18s ease,transform .18s ease,background-color .18s ease;
}
.cat-chip:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.cat-chip.is-current{background:var(--brand);border-color:var(--brand);color:#fff}
.cat-chip.is-current:hover{background:var(--brand-hi);color:#fff}

/* ---------- Bento ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;grid-auto-rows:minmax(172px,auto)}
.bento-card{
  position:relative;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--s1);padding:24px;
  display:flex;flex-direction:column;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.bento-card:hover{box-shadow:var(--s2);transform:translateY(-2px);border-color:rgba(31,214,160,.35)}
.bento-card h3{font-size:20px;margin-bottom:8px}
.bento-card p{color:var(--text-2);font-size:15px;margin:0 0 16px}
.bento-card .bento-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-size:14px;font-weight:600;
}
.bento-card .bento-link svg{width:14px;height:14px;transition:transform .18s ease}
.bento-card:hover .bento-link svg{transform:translateX(3px)}
.bento-card.bento-lg{grid-column:1 / 7;grid-row:1 / 3;padding:0;background:var(--ink-800);border-color:var(--ink-line)}
.bento-lg-media{position:relative;aspect-ratio:16 / 9;overflow:hidden}
.bento-lg-media img{width:100%;height:100%;object-fit:cover}
.bento-lg-body{padding:24px;display:flex;flex-direction:column;flex:1}
.bento-lg .bento-body-title{color:var(--on-ink);font-size:22px;font-weight:700;margin-bottom:8px}
.bento-lg p{color:var(--on-ink-2)}
.bento-lg .bento-link{color:var(--accent)}
.bento-md{grid-column:7 / 13}
.bento-sm{grid-column:span 4}
@media (max-width:991px){
  .bento-card.bento-lg{grid-column:1 / 13;grid-row:auto}
  .bento-md{grid-column:1 / 13}
  .bento-sm{grid-column:span 6}
}
@media (max-width:575px){
  .bento-sm{grid-column:1 / 13}
}

/* ---------- 图文交错 ---------- */
.zigzag{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.zigzag + .zigzag{margin-top:64px}
.zigzag-media{
  border-radius:var(--r-blk);overflow:hidden;
  box-shadow:var(--s2);aspect-ratio:16 / 10;border:1px solid var(--line);
}
.zigzag-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.zigzag-media:hover img{transform:scale(1.03)}
.zigzag h2{position:relative;padding-left:16px}
.zigzag h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:4px;background:var(--brand);
}
.zigzag p{color:var(--text-2)}
.zigzag.is-reverse .zigzag-media{order:2}
.point-list{list-style:none;padding:0;margin:18px 0 0}
.point-list li{
  position:relative;padding-left:22px;margin-bottom:12px;
  color:var(--text);font-size:15px;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:3px;background:var(--brand);
}
@media (max-width:900px){
  .zigzag{grid-template-columns:1fr;gap:24px}
  .zigzag.is-reverse .zigzag-media{order:0}
  .zigzag + .zigzag{margin-top:44px}
}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--s1);
}
.faq-acc .accordion-button{
  background:#fff;color:var(--text);font-size:17px;font-weight:600;
  padding:18px 22px;box-shadow:none !important;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--text);background:#fff;
  box-shadow:inset 3px 0 0 var(--brand) !important;
}
.faq-acc .accordion-button::after{
  width:16px;height:16px;background-size:16px;
  filter:invert(56%) sepia(86%) saturate(1900%) hue-rotate(345deg) brightness(101%) contrast(101%);
}
.faq-acc .accordion-body{
  padding:0 22px 20px;color:var(--text-2);font-size:15px;line-height:1.9;
}
.faq-acc .accordion-button:focus{box-shadow:inset 3px 0 0 var(--brand) !important}

/* ---------- 关联入口横条 ---------- */
.link-row{
  display:flex;align-items:center;gap:20px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 24px;box-shadow:var(--s1);margin-bottom:16px;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.link-row:hover{box-shadow:var(--s2);transform:translateY(-2px);border-color:rgba(31,214,160,.35)}
.link-row .link-icon{
  width:44px;height:44px;flex:0 0 auto;border-radius:12px;
  background:rgba(255,122,47,.10);color:var(--brand);
  display:grid;place-items:center;
}
.link-row .link-icon svg{width:20px;height:20px}
.link-row .link-main{flex:1;min-width:0}
.link-row h3{font-size:17px;margin:0 0 4px}
.link-row p{margin:0;color:var(--text-2);font-size:14px}
.link-row .link-go{color:var(--accent);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.link-row .link-go svg{width:14px;height:14px;transition:transform .18s ease}
.link-row:hover .link-go svg{transform:translateX(3px)}
@media (max-width:575px){
  .link-row{flex-wrap:wrap;gap:14px;padding:18px}
  .link-row .link-go{width:100%}
}

/* ---------- 表单 ---------- */
.form-wrap{
  display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:start;
}
.form-aside h2{position:relative;padding-left:16px}
.form-aside h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:4px;background:var(--brand);
}
.form-aside p{color:var(--text-2)}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--s2);padding:28px;
}
.form-field{margin-bottom:18px}
.form-field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.form-field input,
.form-field textarea,
.form-field select{
  width:100%;height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-input);
  background:#fff;font-size:15px;color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.form-field textarea{height:120px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-field input::placeholder,
.form-field textarea::placeholder{color:var(--text-3)}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus{
  outline:none;border-color:var(--accent);box-shadow:var(--focus);
}
.form-tip{font-size:13px;color:var(--text-3);margin:12px 0 0}
@media (max-width:900px){
  .form-wrap{grid-template-columns:1fr;gap:24px}
}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-900);color:var(--on-ink);
  border-radius:var(--r-blk);
  padding:40px 36px;
  display:flex;flex-wrap:wrap;align-items:center;gap:24px;justify-content:space-between;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-80px;width:260px;height:260px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,122,47,.35),transparent 65%);
}
.cta-band .cta-copy{position:relative;z-index:2;max-width:620px}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:8px}
.cta-band p{color:var(--on-ink-2);margin:0;font-size:15px}
.cta-band .cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:767px){
  .cta-band{padding:28px 22px}
  .cta-band h2{font-size:22px}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:var(--on-ink);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand p{color:var(--on-ink-2);font-size:14px;margin:16px 0 0;max-width:320px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{font-size:14px;color:var(--on-ink-2);margin-bottom:10px}
.footer-col a{color:var(--on-ink-2)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid var(--ink-line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:44px 0 24px}
}

/* roulang page: category2 */
:root{
  --ink-900:#101320;
  --ink-800:#171B2A;
  --ink-700:#232838;
  --bg:#F6F5F2;
  --surface:#FFFFFF;
  --brand:#FF7A2F;
  --brand-600:#F06820;
  --brand-100:rgba(255,122,47,.12);
  --accent:#1FD6A0;
  --accent-100:rgba(31,214,160,.10);
  --text:#12141C;
  --text-2:#5A6072;
  --text-3:#8A90A0;
  --line:#E6E4DE;
  --on-ink:#F2F3F7;
  --on-ink-2:rgba(255,255,255,.68);
  --ink-line:rgba(255,255,255,.10);
  --success:#1FD6A0;
  --warn:#FFB020;
  --error:#F0524D;
  --r-card:16px;
  --r-img:12px;
  --r-block:22px;
  --r-input:12px;
  --r-pill:999px;
  --s1:0 1px 2px rgba(16,19,32,.06),0 8px 24px rgba(16,19,32,.06);
  --s2:0 18px 40px rgba(16,19,32,.12);
  --ring:0 0 0 3px rgba(31,214,160,.28);
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",sans-serif;

  --bs-body-bg:#F6F5F2;
  --bs-body-color:#12141C;
  --bs-border-radius:16px;
  --bs-primary-rgb:255,122,47;
  --bs-font-sans-serif:var(--font-cn);
  --bs-link-color:#0F9E77;
  --bs-link-hover-color:#128A69;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:#0F9E77;text-decoration:none;transition:color .18s ease}
a:hover{color:#128A69}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;color:var(--text);font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:6px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:992px){
  .container{padding-left:32px;padding-right:32px}
}
@media (min-width:1400px){
  .container{max-width:1280px}
}

/* ---------- 按钮 ---------- */
.btn{
  --bs-btn-font-weight:600;
  --bs-btn-font-size:15px;
  --bs-btn-padding-y:12px;
  --bs-btn-padding-x:22px;
  --bs-btn-border-radius:999px;
  --bs-btn-border-width:1px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  line-height:1.2;
  transition:transform .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;
}
.btn:active{transform:translateY(1px)}
.btn svg{width:16px;height:16px;flex:0 0 16px}
.btn-sm{--bs-btn-font-size:14px;--bs-btn-padding-y:9px;--bs-btn-padding-x:16px}
.btn-lg{--bs-btn-font-size:16px;--bs-btn-padding-y:14px;--bs-btn-padding-x:28px}

.btn-brand{
  --bs-btn-color:#fff;
  --bs-btn-bg:var(--brand);
  --bs-btn-border-color:var(--brand);
  --bs-btn-hover-color:#fff;
  --bs-btn-hover-bg:#FF8B47;
  --bs-btn-hover-border-color:#FF8B47;
  --bs-btn-active-color:#fff;
  --bs-btn-active-bg:var(--brand-600);
  --bs-btn-active-border-color:var(--brand-600);
  box-shadow:0 6px 18px rgba(255,122,47,.24);
}
.btn-brand:hover{transform:translateY(-1px);box-shadow:0 10px 26px rgba(255,122,47,.35)}

.btn-outline-ink{
  --bs-btn-color:var(--text);
  --bs-btn-bg:#fff;
  --bs-btn-border-color:var(--line);
  --bs-btn-hover-color:#0F9E77;
  --bs-btn-hover-bg:#fff;
  --bs-btn-hover-border-color:var(--accent);
  --bs-btn-active-color:#0F9E77;
  --bs-btn-active-bg:#fff;
  --bs-btn-active-border-color:var(--accent);
}
.btn-outline-ink:hover{transform:translateY(-1px);box-shadow:var(--s1)}

.btn-ghost-ink{
  --bs-btn-color:var(--on-ink);
  --bs-btn-bg:transparent;
  --bs-btn-border-color:rgba(255,255,255,.28);
  --bs-btn-hover-color:#fff;
  --bs-btn-hover-bg:rgba(255,255,255,.08);
  --bs-btn-hover-border-color:rgba(255,255,255,.45);
  --bs-btn-active-color:#fff;
  --bs-btn-active-bg:rgba(255,255,255,.12);
  --bs-btn-active-border-color:rgba(255,255,255,.45);
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--ink-900);
  border-bottom:1px solid var(--ink-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 12px 30px rgba(16,19,32,.35)}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:28px;
  height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--on-ink);
  flex:0 0 auto;
}
.brand:hover{color:#fff}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:linear-gradient(135deg,var(--brand),#FF9E52);
  color:#fff;
  box-shadow:0 6px 16px rgba(255,122,47,.35);
}
.brand-mark svg{width:18px;height:18px}
.brand-text{font-size:17px;font-weight:700;letter-spacing:0}

.nav-menu{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  color:var(--on-ink-2);
  font-size:15px;
  font-weight:500;
  padding:6px 0;
  transition:color .18s ease;
}
.nav-link:hover{color:#fff}
.nav-link.active{color:#fff;font-weight:600}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-19px;
  height:2px;
  background:var(--brand);
  border-radius:2px;
}

.nav-right{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:220px;
  height:40px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  border:1px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search svg{width:16px;height:16px;color:var(--on-ink-2);flex:0 0 16px}
.nav-search input{
  width:100%;
  border:0;
  background:transparent;
  color:#fff;
  font-size:14px;
  outline:none;
}
.nav-search input::placeholder{color:rgba(255,255,255,.42)}
.nav-search:focus-within{border-color:var(--accent);box-shadow:var(--ring)}

.nav-burger{
  display:none;
  width:42px;height:42px;
  border:1px solid rgba(255,255,255,.22);
  border-radius:12px;
  background:transparent;
  padding:0;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
}
.nav-burger span{
  display:block;
  width:18px;height:2px;
  background:var(--on-ink);
  border-radius:2px;
  transition:.2s ease;
}

/* 移动端抽屉 */
.nav-drawer{
  position:fixed;
  inset:0;
  z-index:1060;
  background:var(--ink-900);
  padding:20px;
  display:flex;
  flex-direction:column;
  transform:translateY(-12px);
  opacity:0;
  pointer-events:none;
  transition:opacity .22s ease,transform .22s ease;
}
.nav-drawer.is-open{opacity:1;transform:none;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--ink-line)}
.drawer-close{
  width:40px;height:40px;border-radius:12px;
  border:1px solid rgba(255,255,255,.22);
  background:transparent;color:var(--on-ink);
  font-size:20px;line-height:1;cursor:pointer;
}
.drawer-menu{display:flex;flex-direction:column;margin-top:12px}
.drawer-link{
  color:var(--on-ink-2);
  font-size:16px;
  padding:14px 4px;
  border-bottom:1px solid var(--ink-line);
}
.drawer-link.active{color:#fff;font-weight:600;border-left:3px solid var(--brand);padding-left:12px}
.drawer-foot{margin-top:auto;display:flex;gap:12px;padding-top:20px}
.drawer-foot .btn{flex:1}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{
  background:var(--ink-900);
  border-top:1px solid var(--ink-line);
  padding:14px 0 0;
}
.breadcrumb-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}
.breadcrumb-list a{color:var(--on-ink-2)}
.breadcrumb-list a:hover{color:var(--accent)}
.breadcrumb-list .sep{color:rgba(255,255,255,.32)}
.breadcrumb-list .current{color:var(--on-ink)}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;
  background-color:var(--ink-900);
  background-image:linear-gradient(115deg,rgba(16,19,32,.94) 0%,rgba(16,19,32,.82) 55%,rgba(16,19,32,.66) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  color:var(--on-ink);
  padding:44px 0 72px;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-60px;top:-40px;
  width:340px;height:340px;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:16px 16px;
  opacity:.5;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 14px;
  border-radius:999px;
  background:var(--brand);
  color:#fff;
  font-size:12px;
  font-weight:600;
}
.hero-title{
  margin-top:20px;
  font-size:48px;
  font-weight:800;
  line-height:1.25;
  color:#fff;
  max-width:840px;
}
.hero-sub{
  margin-top:16px;
  max-width:700px;
  font-size:17px;
  line-height:1.85;
  color:var(--on-ink-2);
}
.hero-actions{
  margin-top:30px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.hero-points{
  margin-top:34px;
  display:flex;
  flex-wrap:wrap;
  gap:12px 34px;
}
.hero-point{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:14px;
  color:var(--on-ink-2);
}
.hero-point svg{width:17px;height:17px;color:var(--accent);flex:0 0 17px}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--alt{background:#FBFAF7;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:#0F9E77;
  background:var(--accent-100);
  border-radius:999px;
  padding:5px 14px;
}
.section-head{max-width:760px;margin-bottom:44px}
.section-title{
  position:relative;
  margin-top:14px;
  font-size:30px;
  font-weight:700;
  padding-left:16px;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:4px;
  border-radius:3px;
  background:var(--brand);
}
.section-sub{margin-top:14px;color:var(--text-2);font-size:16px}

/* ---------- 流程布局：左侧目录 + 右侧步骤 ---------- */
.flow-layout{
  display:grid;
  grid-template-columns:300px 1fr;
  gap:56px;
  align-items:start;
}
.flow-toc{position:sticky;top:96px}
.toc-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--s1);
  padding:22px;
}
.toc-title{
  font-size:13px;
  font-weight:600;
  letter-spacing:0;
  color:var(--text-3);
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
}
.toc-list{display:flex;flex-direction:column;margin-top:12px}
.toc-link{
  position:relative;
  display:block;
  padding:11px 8px 11px 16px;
  font-size:14px;
  color:var(--text-2);
  border-radius:10px;
  transition:background-color .18s ease,color .18s ease;
}
.toc-link::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  width:3px;height:0;
  transform:translateY(-50%);
  background:var(--accent);
  border-radius:3px;
  transition:height .2s ease;
}
.toc-link:hover{background:#FAFAF8;color:var(--text)}
.toc-link.active{color:var(--text);font-weight:600;background:#FAFAF8}
.toc-link.active::before{height:18px}
.toc-cta{
  margin-top:20px;
  padding-top:20px;
  border-top:1px solid var(--line);
}
.toc-cta p{font-size:13px;color:var(--text-3);line-height:1.7;margin-bottom:14px}
.toc-cta .btn{width:100%}

.flow-steps{position:relative;padding-left:36px}
.flow-steps::before{
  content:"";
  position:absolute;
  left:9px;top:14px;bottom:40px;
  width:2px;
  background:var(--line);
}
.step{
  position:relative;
  padding-bottom:56px;
  scroll-margin-top:110px;
}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";
  position:absolute;
  left:-31px;top:10px;
  width:10px;height:10px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(255,122,47,.16);
}
.step-head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}
.step-num{
  font-family:"DIN Alternate","Barlow",var(--font-cn);
  font-size:38px;
  font-weight:800;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1.5px rgba(255,122,47,.55);
  font-variant-numeric:tabular-nums;
}
.step-title{font-size:22px;font-weight:700}
.step-text{margin-top:12px;color:var(--text-2);font-size:16px;line-height:1.85;max-width:660px}
.point-list{
  margin-top:16px;
  display:grid;
  gap:10px;
  max-width:660px;
}
.point-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.7;
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--brand);
}
.step-figure{
  margin-top:22px;
  max-width:660px;
  border-radius:var(--r-img);
  overflow:hidden;
  box-shadow:var(--s1);
  border:1px solid var(--line);
}
.step-figure img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .4s ease;
}
.step-figure:hover img{transform:scale(1.03)}

/* ---------- 对比条 ---------- */
.compare-list{
  border-top:1px solid var(--line);
  max-width:940px;
}
.compare-row{
  display:grid;
  grid-template-columns:220px 1fr;
  gap:32px;
  padding:24px 4px;
  border-bottom:1px solid var(--line);
  transition:background-color .18s ease;
}
.compare-row:hover{background:#FBFAF7}
.compare-label{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:700;
  color:var(--text);
}
.compare-label .dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--brand);flex:0 0 10px;
}
.compare-value{color:var(--text-2);font-size:15px;line-height:1.85}
.compare-value strong{color:var(--text);font-weight:600}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;display:grid;gap:14px}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--s1);
  overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item:hover{box-shadow:var(--s2);border-color:rgba(31,214,160,.3)}
.faq-q{
  position:relative;
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  background:transparent;
  border:0;
  padding:20px 22px 20px 26px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:3px;
  background:transparent;
  transition:background-color .2s ease;
}
.faq-q[aria-expanded="true"]::before{background:var(--brand)}
.faq-icon{
  position:relative;
  width:16px;height:16px;
  flex:0 0 16px;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--text-2);
  border-radius:2px;
  transition:.25s ease;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-q[aria-expanded="true"] .faq-icon::after{height:0;top:7px}
.faq-a{
  padding:0 26px 22px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.9;
}

/* ---------- 相关入口横条 ---------- */
.entry-list{display:grid;gap:16px;max-width:960px}
.entry-item{
  display:flex;
  align-items:center;
  gap:18px;
  padding:20px 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--s1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.entry-item:hover{
  transform:translateY(-2px);
  box-shadow:var(--s2);
  border-color:rgba(31,214,160,.35);
}
.entry-icon{
  width:44px;height:44px;
  flex:0 0 44px;
  border-radius:13px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--accent-100);
  color:#0F9E77;
}
.entry-icon svg{width:20px;height:20px}
.entry-text{flex:1;min-width:0}
.entry-text h3{font-size:17px;font-weight:700;margin-bottom:4px}
.entry-text p{font-size:14px;color:var(--text-2);line-height:1.7}
.entry-arrow{
  flex:0 0 auto;
  color:var(--text-3);
  transition:transform .2s ease,color .2s ease;
}
.entry-arrow svg{width:18px;height:18px}
.entry-item:hover .entry-arrow{color:var(--brand);transform:translateX(3px)}

/* ---------- 深色 CTA ---------- */
.cta-band{
  position:relative;
  background:var(--ink-900);
  border-radius:var(--r-block);
  padding:48px;
  overflow:hidden;
  margin-bottom:88px;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;bottom:-120px;
  width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,47,.32),transparent 68%);
  pointer-events:none;
}
.cta-band-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{
  font-size:26px;
  color:#fff;
  font-weight:700;
  max-width:560px;
}
.cta-band p{
  margin-top:12px;
  color:var(--on-ink-2);
  font-size:15px;
  max-width:560px;
}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);
  color:var(--on-ink-2);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--on-ink-2);max-width:320px}
.footer-col h4{
  font-size:15px;
  color:#fff;
  margin-bottom:16px;
  font-weight:600;
}
.footer-col ul{display:grid;gap:10px}
.footer-col li{font-size:14px;color:var(--on-ink-2);line-height:1.7}
.footer-col a{color:var(--on-ink-2)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid var(--ink-line);
  padding:20px 0 28px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .flow-layout{grid-template-columns:260px 1fr;gap:40px}
}
@media (max-width:991px){
  .nav-menu{display:none}
  .nav-search{display:none}
  .nav-burger{display:flex}
  .nav-right .btn{display:none}
  .hero-title{font-size:36px}
  .section{padding:64px 0}
  .flow-layout{grid-template-columns:1fr;gap:32px}
  .flow-toc{position:static}
  .toc-list{
    flex-direction:row;
    overflow-x:auto;
    gap:10px;
    padding-bottom:6px;
    scrollbar-width:none;
  }
  .toc-list::-webkit-scrollbar{display:none}
  .toc-link{
    white-space:nowrap;
    border:1px solid var(--line);
    border-radius:999px;
    padding:9px 16px;
  }
  .toc-link::before{display:none}
  .toc-link.active{border-color:var(--brand);background:var(--brand-100);color:var(--brand-600)}
  .compare-row{grid-template-columns:1fr;gap:10px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:36px;margin-bottom:64px}
}
@media (max-width:767px){
  .hero-title{font-size:30px}
  .hero-sub{font-size:16px}
  .section{padding:52px 0}
  .section-title{font-size:24px}
  .step-num{font-size:30px}
  .step-title{font-size:19px}
  .cta-band{border-radius:16px;padding:28px}
  .cta-band h2{font-size:21px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .entry-item{align-items:flex-start}
  .flow-steps{padding-left:30px}
  .flow-steps::before{left:6px}
  .step::before{left:-29px;top:8px}
}
@media (max-width:519px){
  .hero-title{font-size:26px}
  .hero-actions .btn{width:100%}
  .hero-points{gap:10px 20px}
  .faq-q{font-size:15px;padding:18px 18px 18px 22px}
  .faq-a{padding:0 22px 20px}
}