/* roulang page: index */
:root{
  --ink-900:#08110F;--ink-800:#0E1917;
  --brand-500:#0FD39B;--brand-600:#0AA87C;--brand-300:#6EE7C4;
  --accent-500:#7A5AF8;--accent-400:#9C8BFF;--warn-500:#FF8A3D;
  --bg-page:#F5F8F7;--bg-card:#FFFFFF;--line:#E4EBE9;
  --text-900:#1B2422;--text-600:#5D6B68;--text-400:#8A9794;
  --grad-brand:linear-gradient(120deg,#0FD39B 0%,#22B8C4 52%,#6C63FF 100%);
  --grad-ink:linear-gradient(180deg,rgba(8,17,15,.92) 0%,rgba(8,17,15,.55) 100%);
  --r-sm:10px;--r-md:14px;--r-lg:20px;--r-xl:28px;--r-pill:999px;
  --sh-1:0 2px 8px rgba(8,17,15,.05);
  --sh-2:0 10px 28px rgba(8,17,15,.08);
  --sh-3:0 20px 48px rgba(8,17,15,.14);
  --sh-glow:0 0 0 1px rgba(15,211,155,.55),0 0 18px rgba(15,211,155,.35);
  --sec-y:96px;
  --bs-primary:#0FD39B;
  --bs-primary-rgb:15,211,155;
  --bs-body-color:#1B2422;
  --bs-border-color:#E4EBE9;
  --bs-link-color:#0AA87C;
  --bs-link-hover-color:#0FD39B;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.75;color:var(--text-900);background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-500)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.25;color:var(--text-900)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
svg{flex:0 0 auto}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px}
.container,.container-lg,.container-md,.container-sm,.container-xl{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
@media (max-width:575.98px){.container,.container-lg,.container-md,.container-sm,.container-xl{padding-left:20px;padding-right:20px}}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;
  border-radius:12px;font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s,background .22s,border-color .22s,color .22s;
  text-decoration:none;white-space:nowrap}
.btn:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.btn.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn.btn-block{width:100%}
.btn-primary,.btn.btn-primary{
  background-image:var(--grad-brand);background-color:var(--brand-500);color:#06120F;border:none;
  --bs-btn-bg:var(--brand-500);--bs-btn-border-color:transparent;--bs-btn-hover-bg:var(--brand-500);
  --bs-btn-hover-border-color:transparent;--bs-btn-color:#06120F;--bs-btn-hover-color:#06120F;
  --bs-btn-active-bg:var(--brand-600);--bs-btn-active-color:#06120F;--bs-btn-disabled-bg:var(--brand-500);
}
.btn-primary:hover,.btn.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--sh-2);background-image:linear-gradient(140deg,#0FD39B 0%,#22B8C4 52%,#6C63FF 100%);color:#06120F}
.btn-primary:active,.btn.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;border:1px solid rgba(15,211,155,.45);color:var(--brand-600)}
.btn-ghost:hover{background:rgba(15,211,155,.08);color:var(--brand-600);border-color:rgba(15,211,155,.7)}
.btn-ghost-light{background:transparent;border:1px solid rgba(255,255,255,.45);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.75)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600)}
.link-arrow:hover{text-decoration:underline;text-underline-offset:3px}
.text-link{font-size:14px;font-weight:600;color:var(--brand-600)}
.text-link:hover{text-decoration:underline;text-underline-offset:3px}

/* ---------- 徽章 ---------- */
.badge-num{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;font-variant-numeric:tabular-nums;background:rgba(15,211,155,.12);color:var(--brand-600)}
.badge-soft{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;background:#F1F5F4;color:var(--text-600)}
.badge-outline{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:var(--brand-600);border:1px solid rgba(15,211,155,.55);background:rgba(15,211,155,.06)}
.badge-dark{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;font-variant-numeric:tabular-nums;background:rgba(255,255,255,.12);color:#EAFDF7;border:1px solid rgba(255,255,255,.18)}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;background:#F1F5F4;color:var(--text-600)}
.num-chip{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:12px;
  background:rgba(15,211,155,.12);color:var(--brand-600);font-size:14px;font-weight:700;font-variant-numeric:tabular-nums}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030}
.topbar{background:var(--ink-800);color:#8FA39E;font-size:13px;padding:10px 0}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left{display:flex;align-items:center;gap:10px}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--brand-500);box-shadow:0 0 8px rgba(15,211,155,.9)}
.topbar-right{display:flex;align-items:center;gap:20px}
.topbar a{color:#C9D6D3;font-size:13px}
.topbar a:hover{color:var(--brand-300)}
.mainnav.navbar{background:var(--ink-900);padding:0;position:relative}
.mainnav.navbar::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand-500),var(--accent-500),transparent);opacity:.6}
.mainnav .container{display:flex;align-items:center;gap:28px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;letter-spacing:.2px}
.brand:hover{color:#fff}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:11px;background-image:var(--grad-brand);color:#06120F}
.brand-mark svg{width:18px;height:18px}
.brand em{font-style:normal;color:var(--brand-300)}
.navmenu{display:flex;align-items:center;gap:28px}
.navmenu .nav-link{position:relative;padding:26px 0;font-size:14px;font-weight:500;color:#C9D6D3;background:none}
.navmenu .nav-link::after{content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;border-radius:2px;
  background-image:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:transform .22s cubic-bezier(.2,.7,.3,1)}
.navmenu .nav-link:hover{color:#fff}
.navmenu .nav-link:hover::after{transform:scaleX(1)}
.navmenu .nav-link.active{color:var(--brand-300)}
.navmenu .nav-link.active::after{transform:scaleX(1);box-shadow:0 0 10px rgba(15,211,155,.65)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.navbar-toggler{border:1px solid rgba(255,255,255,.22);border-radius:10px;padding:6px 10px;color:#fff}
.navbar-toggler:focus{box-shadow:none}
.navbar-toggler-icon{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%23C9D6D3' stroke-width='2' stroke-linecap='round' d='M4 8h22M4 15h22M4 22h22'/%3E%3C/svg%3E")}
@media (max-width:991.98px){
  .mainnav .container{min-height:60px;flex-wrap:wrap;gap:0}
  .nav-actions{margin-left:auto}
  .navbar-collapse{flex-basis:100%;border-top:1px solid rgba(255,255,255,.08);margin-top:10px;padding-bottom:12px}
  .navmenu{flex-direction:column;align-items:stretch;gap:0}
  .navmenu .nav-link{padding:0 12px;line-height:44px;border-bottom:1px solid rgba(255,255,255,.08)}
  .navmenu .nav-link::after{display:none}
  .navmenu .nav-link.active{box-shadow:inset 3px 0 0 var(--brand-500);padding-left:16px}
  .nav-actions .btn-login{display:none}
}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec-y) 0}
.section-alt{background:#FFFFFF}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700}
.section-head .sub{margin-top:10px;font-size:15px;color:var(--text-600);max-width:640px}
.section-head .head-side{flex:0 0 auto;padding-bottom:6px}
@media (max-width:767.98px){
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background-color:var(--ink-900);padding:88px 0 80px}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.9}
.hero-overlay{position:absolute;inset:0;background-image:var(--grad-ink)}
.hero-overlay::after{content:"";position:absolute;inset:0;background:radial-gradient(720px 420px at 82% 18%,rgba(122,90,248,.22),transparent 70%)}
.hero-inner{position:relative;z-index:2}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:#CFF7EA;background:rgba(15,211,155,.14);border:1px solid rgba(15,211,155,.35)}
.hero h1{margin-top:22px;font-size:clamp(30px,4.2vw,52px);line-height:1.15;font-weight:800;color:#fff;letter-spacing:-.4px}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.7;color:#C6D6D2;max-width:560px}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{margin-top:40px;display:flex;flex-wrap:wrap;gap:14px}
.hero-stats li{display:flex;align-items:baseline;gap:8px;padding:12px 18px;border-radius:var(--r-md);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12)}
.hero-stats .num{font-size:20px;font-weight:700;color:var(--brand-300);font-variant-numeric:tabular-nums}
.hero-stats .lbl{font-size:13px;color:#B9CAC6}
@media (max-width:767.98px){
  .hero{padding:64px 0 56px}
  .hero-bg{opacity:1}
  .hero-overlay{background-image:linear-gradient(180deg,rgba(8,17,15,.95) 0%,rgba(8,17,15,.86) 60%,rgba(8,17,15,.92) 100%)}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:10px}
  .hero-stats li{flex:1 1 calc(50% - 5px);padding:10px 14px}
}

/* ---------- 登录卡 ---------- */
.login-card{position:relative;background:var(--bg-card);border-radius:var(--r-xl);padding:32px;box-shadow:var(--sh-3)}
.login-card .card-badge{position:absolute;top:-13px;right:24px}
.login-card h2{font-size:22px;font-weight:700}
.login-card .desc{margin-top:8px;font-size:14px;color:var(--text-600)}
.login-form{margin-top:22px;display:grid;gap:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text-900)}
.field input{width:100%;height:48px;border-radius:12px;border:1px solid #D8E3E0;background:#fff;padding:0 16px;font-size:15px;transition:border-color .2s,box-shadow .2s}
.field input::placeholder{color:var(--text-400)}
.field input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(15,211,155,.18)}
.code-row{display:flex;gap:12px}
.code-row input{flex:1 1 auto}
.code-box{flex:0 0 100px;height:48px;border-radius:12px;border:1px dashed #C9D8D4;background:#F7FAF9;
  display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--text-400);letter-spacing:2px;user-select:none}
.form-hint{font-size:13px;color:var(--text-400);text-align:center;line-height:1.6}
.form-error{border:1px solid #E5484D;border-radius:12px;padding:10px 14px;font-size:13px;color:#C42A2F;background:#FFF5F5}

/* ---------- 权益对比表 ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-xl);background:var(--bg-card);box-shadow:var(--sh-1);-webkit-overflow-scrolling:touch}
.benefit-table{width:100%;min-width:900px;border-collapse:separate;border-spacing:0;margin:0}
.benefit-table th,.benefit-table td{padding:0 18px;height:56px;font-size:15px;text-align:center;
  border-bottom:1px solid var(--line);vertical-align:middle;font-variant-numeric:tabular-nums}
.benefit-table thead th{background-image:var(--grad-brand);color:#06120F;font-weight:700;font-size:15px;
  position:sticky;top:0;z-index:2;border-bottom:none}
.benefit-table thead th:first-child{background-image:none;background-color:#0FBF8E;text-align:left;z-index:3}
.benefit-table tbody th{text-align:left;font-weight:600;color:var(--text-900);background:var(--bg-card)}
.benefit-table tbody tr:nth-child(even) th,.benefit-table tbody tr:nth-child(even) td{background:#F7FAF9}
.benefit-table tbody tr:last-child th,.benefit-table tbody tr:last-child td{border-bottom:none}
.benefit-table .col-rec{background:rgba(15,211,155,.09)!important;border-left:2px solid var(--brand-500);border-right:2px solid var(--brand-500)}
.benefit-table .rec-pill{display:inline-flex;align-items:center;height:22px;padding:0 10px;margin-left:8px;
  border-radius:var(--r-pill);background:#06120F;color:#7BF3CE;font-size:12px;font-weight:600;vertical-align:middle}
.cell-y,.cell-n{display:inline-flex;align-items:center;gap:6px;font-size:14px}
.cell-y{color:var(--brand-600);font-weight:600}
.cell-n{color:var(--text-400)}
.cell-v{font-weight:600;color:var(--text-900)}
@media (max-width:767.98px){
  .benefit-table th,.benefit-table td{height:52px;padding:0 14px;font-size:14px}
  .benefit-table tbody th{position:sticky;left:0;z-index:1;box-shadow:6px 0 12px -6px rgba(8,17,15,.18)}
}

/* ---------- 等级卡 ---------- */
.tier-card{position:relative;background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:32px;box-shadow:var(--sh-1);height:100%;display:flex;flex-direction:column;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s,border-color .22s}
.tier-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,211,155,.35)}
.tier-feature{background-image:linear-gradient(120deg,rgba(15,211,155,.10) 0%,rgba(108,99,255,.07) 100%);border-color:rgba(15,211,155,.28)}
.tier-feature::before{content:"";position:absolute;left:0;top:34px;bottom:34px;width:4px;border-radius:0 4px 4px 0;background-image:var(--grad-brand)}
.tier-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.tier-head h3{font-size:20px;font-weight:700}
.tier-card > p{margin-top:14px;font-size:15px;color:var(--text-600)}
.tier-list{margin-top:20px;display:grid;gap:12px}
.tier-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--text-600)}
.tier-list li svg{color:var(--brand-500);margin-top:4px}
.tier-foot{margin-top:auto;padding-top:24px}
.tier-small{padding:26px 28px}
.tier-stack{display:grid;gap:24px;height:100%}

/* ---------- 内容预览 ---------- */
.preview-grid{display:grid;gap:24px;grid-template-columns:repeat(3,1fr)}
.preview-lead{grid-column:1/-1;display:grid;grid-template-columns:1.05fr 1fr;gap:0;
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s,border-color .22s}
.preview-lead:hover,.preview-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,211,155,.35)}
.preview-media{position:relative;overflow:hidden;background:#EAF2F0}
.preview-media img{width:100%;height:100%;object-fit:cover;transition:transform .26s cubic-bezier(.2,.7,.3,1)}
.preview-lead:hover .preview-media img,.preview-card:hover .preview-media img{transform:scale(1.03)}
.preview-lead .preview-body{padding:32px;display:flex;flex-direction:column;gap:14px;justify-content:center}
.preview-lead .preview-body h3{font-size:22px}
.preview-lead .preview-body p{font-size:15px;color:var(--text-600)}
.preview-card{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s,border-color .22s}
.preview-card .preview-media{aspect-ratio:16/10}
.preview-card .preview-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.preview-card h3{font-size:17px;font-weight:700;line-height:1.5}
.preview-card p{font-size:14px;color:var(--text-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta-row{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-400);font-variant-numeric:tabular-nums}
@media (max-width:991.98px){
  .preview-grid{grid-template-columns:repeat(2,1fr)}
  .preview-lead{grid-template-columns:1fr}
  .preview-lead .preview-media{aspect-ratio:16/9}
}
@media (max-width:575.98px){
  .preview-grid{grid-template-columns:1fr}
  .preview-lead .preview-body{padding:24px}
}

/* ---------- 最新信息列表 ---------- */
.news-lead{display:grid;grid-template-columns:1fr 1.15fr;background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-1);margin-bottom:24px;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s,border-color .22s}
.news-lead:hover,.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,211,155,.35)}
.news-lead .thumb{position:relative;overflow:hidden;min-height:280px;background:#EAF2F0}
.news-lead .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .26s cubic-bezier(.2,.7,.3,1)}
.news-lead:hover .thumb img{transform:scale(1.03)}
.news-lead .body{padding:32px;display:flex;flex-direction:column;gap:14px;justify-content:center}
.news-lead h3{font-size:22px;line-height:1.45}
.news-lead h3 a{color:var(--text-900)}
.news-lead h3 a:hover{color:var(--brand-600)}
.news-lead .excerpt{font-size:15px;color:var(--text-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);height:100%;display:flex;flex-direction:column;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s,border-color .22s}
.news-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EAF2F0}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .26s cubic-bezier(.2,.7,.3,1)}
.news-card:hover .thumb img{transform:scale(1.03)}
.news-card .body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-card h3{font-size:17px;line-height:1.5;font-weight:700}
.news-card h3 a{color:var(--text-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card h3 a:hover{color:var(--brand-600)}
.news-card .excerpt{font-size:14px;color:var(--text-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.thumb-fallback{width:100%;height:100%;min-height:180px;background-image:linear-gradient(120deg,rgba(15,211,155,.30) 0%,rgba(34,184,196,.28) 52%,rgba(108,99,255,.30) 100%)}
.news-foot{margin-top:32px;display:flex;justify-content:flex-end}
.empty-state{display:flex;flex-direction:column;align-items:center;gap:14px;padding:64px 24px;text-align:center;
  background:var(--bg-card);border:1px dashed var(--line);border-radius:var(--r-xl);color:var(--text-600)}
.empty-state svg{color:var(--text-400)}
@media (max-width:991.98px){
  .news-lead{grid-template-columns:1fr}
  .news-lead .thumb{min-height:220px;aspect-ratio:16/9}
}
@media (max-width:575.98px){
  .news-lead .body{padding:24px}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.accordion.faq-accordion{--bs-accordion-border-width:0;--bs-accordion-bg:transparent;--bs-accordion-btn-focus-box-shadow:none}
.faq-accordion .accordion-item{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1);transition:border-color .2s,box-shadow .2s}
.faq-accordion .accordion-item:hover{border-color:rgba(15,211,155,.35)}
.faq-accordion .accordion-button{position:relative;background:var(--bg-card);color:var(--text-900);font-size:16px;
  font-weight:600;padding:22px 56px 22px 24px;line-height:1.6;box-shadow:none}
.faq-accordion .accordion-button::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  border-radius:0 3px 3px 0;background-image:var(--grad-brand);opacity:0;transition:opacity .2s}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand-600);background:var(--bg-card)}
.faq-accordion .accordion-button:not(.collapsed)::before{opacity:1}
.faq-accordion .accordion-button::after{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230AA87C'%3E%3Cpath d='M8 2.5a.75.75 0 0 1 .75.75v4h4a.75.75 0 0 1 0 1.5h-4v4a.75.75 0 0 1-1.5 0v-4h-4a.75.75 0 0 1 0-1.5h4v-4A.75.75 0 0 1 8 2.5Z'/%3E%3C/svg%3E");
  width:18px;height:18px;background-size:18px;transition:transform .22s}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.faq-accordion .accordion-body{padding:0 24px 24px;font-size:15px;line-height:1.8;color:var(--text-600)}
@media (max-width:767.98px){
  .faq-accordion .accordion-button{font-size:15px;padding:18px 48px 18px 20px}
  .faq-accordion .accordion-body{padding:0 20px 20px}
}

/* ---------- CTA 通栏 ---------- */
.cta-band{position:relative;background:var(--ink-900);overflow:hidden;padding:80px 0}
.cta-band::before{content:"";position:absolute;inset:0;
  background:radial-gradient(600px 320px at 20% 20%,rgba(15,211,155,.09),transparent 70%),
             radial-gradient(560px 300px at 84% 76%,rgba(122,90,248,.10),transparent 72%)}
.cta-band::after{content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand-500),var(--accent-500),transparent);opacity:.6}
.cta-inner{position:relative;z-index:2;text-align:center}
.cta-inner h2{color:#fff;font-size:clamp(24px,2.6vw,34px)}
.cta-inner .sub{margin-top:14px;font-size:16px;color:#B9CAC6}
.cta-actions{margin-top:32px;display:flex;justify-content:center;flex-wrap:wrap;gap:14px}
.cta-stats{margin-top:36px;display:flex;justify-content:center;flex-wrap:wrap;gap:14px}
.cta-stats li{padding:12px 20px;border-radius:var(--r-md);background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.13);font-size:13px;color:#C6D6D2}
.cta-stats .num{font-size:20px;font-weight:700;color:var(--brand-300);font-variant-numeric:tabular-nums;margin-right:8px}
@media (max-width:575.98px){
  .cta-band{padding:56px 0}
  .cta-actions .btn{width:100%}
  .cta-stats li{flex:1 1 calc(50% - 7px);text-align:center}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:#8FA39E;padding:64px 0 0;position:relative}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand-500),var(--accent-500),transparent);opacity:.6}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px}
.footer-brand .brand{font-size:17px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#8FA39E;max-width:320px}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-list{display:grid;gap:12px}
.footer-list a{font-size:14px;color:#C9D6D3}
.footer-list a:hover{color:var(--brand-300)}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.09);padding:24px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#7C8F8A}
.footer-bottom a{color:#9FB0AC}
.footer-bottom a:hover{color:var(--brand-300)}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:36px}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr;gap:32px}.site-footer{padding-top:48px}}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .26s ease,transform .26s cubic-bezier(.2,.7,.3,1)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{transition-duration:.01ms!important;animation-duration:.01ms!important}
}
@media (max-width:767.98px){
  :root{--sec-y:64px}
}

/* roulang page: category1 */
:root{
  --ink-900:#08110F;
  --ink-800:#0E1917;
  --brand-500:#0FD39B;
  --brand-600:#0AA87C;
  --brand-300:#6EE7C4;
  --accent-500:#7A5AF8;
  --accent-400:#9C8BFF;
  --warn-500:#FF8A3D;
  --bg-page:#F5F8F7;
  --bg-card:#FFFFFF;
  --line:#E4EBE9;
  --text-900:#1B2422;
  --text-600:#5D6B68;
  --text-400:#8A9794;
  --grad-brand:linear-gradient(120deg,#0FD39B 0%,#22B8C4 52%,#6C63FF 100%);
  --grad-ink:linear-gradient(180deg,rgba(8,17,15,.92) 0%,rgba(8,17,15,.55) 100%);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(8,17,15,.05);
  --sh-2:0 10px 28px rgba(8,17,15,.08);
  --sh-3:0 20px 48px rgba(8,17,15,.14);
  --sh-glow:0 0 0 1px rgba(15,211,155,.55),0 0 18px rgba(15,211,155,.35);
  --sec-y:96px;
  --bs-primary:#0FD39B;
  --bs-body-color:#1B2422;
  --bs-body-bg:#F5F8F7;
  --bs-border-color:#E4EBE9;
  --bs-border-radius:12px;
  --bs-link-color:#0AA87C;
  --bs-link-hover-color:#0FD39B;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-900);
  background:var(--bg-page);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease,box-shadow .2s ease}
a:hover{color:var(--brand-500)}
h1,h2,h3,h4{margin:0;color:var(--text-900);font-weight:700;letter-spacing:0}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.15;font-weight:800}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25}
h3{font-size:20px;line-height:1.4}
h4{font-size:17px;line-height:1.5;font-weight:600}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
.container,.container-fluid{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部信息条与导航 ---------- */
.site-header{position:relative;z-index:1030}
.topbar{background:var(--ink-800);color:#8FA39E;font-size:13px;line-height:1.6}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;padding-top:6px;padding-bottom:6px}
.topbar-left{display:flex;align-items:center;gap:8px;min-width:0}
.topbar-left span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar-dot{width:7px;height:7px;border-radius:50%;background:var(--brand-500);box-shadow:0 0 10px rgba(15,211,155,.8);flex:0 0 auto}
.topbar-right{display:flex;align-items:center;gap:18px;flex:0 0 auto}
.topbar-right a{color:#A9BAB6;font-size:13px}
.topbar-right a:hover{color:var(--brand-300)}
.mainnav{
  background:var(--ink-900);
  position:relative;
  padding:0;
  box-shadow:0 8px 24px rgba(8,17,15,.22);
}
.mainnav::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(15,211,155,.6),rgba(122,90,248,.6),transparent);
}
.mainnav .container{display:flex;align-items:center;min-height:72px;flex-wrap:wrap}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:#fff;letter-spacing:.2px;white-space:nowrap}
.brand:hover{color:#fff}
.brand em{font-style:normal;color:var(--brand-300)}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  background:rgba(15,211,155,.12);
  border:1px solid rgba(15,211,155,.35);
  color:var(--brand-300);
  flex:0 0 auto;
}
.brand-mark svg{width:19px;height:19px}
.navbar-toggler{
  border:1px solid rgba(255,255,255,.18);
  border-radius:10px;
  padding:6px 8px;
  margin-left:auto;
  box-shadow:none!important;
}
.navbar-toggler-icon{
  width:22px;height:22px;background-size:22px;background-repeat:no-repeat;background-position:center;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M4 7h16M4 12h16M4 17h16'/%3E%3C/svg%3E");
}
.navmenu .nav-link{
  position:relative;
  color:#C9D6D3;
  font-size:14px;
  font-weight:500;
  padding:0 0 4px;
  margin:0 14px;
  line-height:1.5;
  background:transparent!important;
}
.navmenu .nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:var(--grad-brand);transform:scaleX(0);transform-origin:left;
  transition:transform .22s cubic-bezier(.2,.7,.3,1);
}
.navmenu .nav-link:hover{color:#fff}
.navmenu .nav-link:hover::after{transform:scaleX(1)}
.navmenu .nav-link.active{color:var(--brand-300);text-shadow:0 0 14px rgba(15,211,155,.45)}
.navmenu .nav-link.active::after{transform:scaleX(1);box-shadow:0 0 12px rgba(15,211,155,.55)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}

/* ---------- 按钮 ---------- */
.btn{
  border-radius:12px;
  font-family:inherit;
  font-weight:700;
  font-size:15px;
  height:48px;
  padding:0 24px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:0;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,background-color .2s ease,filter .2s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{
  background:var(--grad-brand);
  color:#06120F;
  box-shadow:var(--sh-1);
}
.btn-primary:hover,.btn-primary:focus{
  background:var(--grad-brand);
  color:#06120F;
  filter:brightness(1.06);
  background-position:20px 0;
}
.btn-ghost{
  background:transparent;
  border:1px solid rgba(15,211,155,.45);
  color:var(--brand-600);
  box-shadow:none;
}
.btn-ghost:hover{background:rgba(15,211,155,.08);color:var(--brand-600);border-color:rgba(15,211,155,.7)}
.on-dark .btn-ghost{color:var(--brand-300);border-color:rgba(110,231,196,.5)}
.on-dark .btn-ghost:hover{background:rgba(110,231,196,.1);color:#fff}
.on-dark .btn-primary{color:#06120F}
.btn[disabled],.btn.disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.link-more{font-size:14px;font-weight:600;color:var(--brand-600)}
.link-more:hover{box-shadow:inset 0 -1px 0 var(--brand-600);color:var(--brand-600)}

/* ---------- 徽章与标签 ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;
  font-variant-numeric:tabular-nums;
  background:rgba(15,211,155,.12);
  color:var(--brand-600);
  white-space:nowrap;
}
.badge-pill.is-outline{
  background:transparent;
  color:var(--brand-600);
  border:1px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-brand);
  background-origin:border-box;
  background-clip:padding-box,border-box;
}
.badge-pill.is-dark{
  background:rgba(255,255,255,.1);
  color:#fff;
  border:1px solid rgba(255,255,255,.16);
}
.tag{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:#F1F5F4;color:var(--text-600);
  font-size:13px;font-weight:500;
}
.tag.is-on{background:rgba(15,211,155,.12);color:var(--brand-600);font-weight:600}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  background:var(--ink-900) url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  color:#fff;
  padding:64px 0 72px;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:var(--grad-ink);
}
.page-hero .container{position:relative;z-index:1}
.crumbs{font-size:13px;color:rgba(255,255,255,.7);display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:20px}
.crumbs a{color:rgba(255,255,255,.78)}
.crumbs a:hover{color:var(--brand-300)}
.crumbs .sep{color:rgba(255,255,255,.35)}
.crumbs .current{color:#fff}
.page-hero h1{color:#fff;max-width:860px}
.page-hero .lead-line{
  margin-top:18px;max-width:720px;
  color:rgba(255,255,255,.82);font-size:17px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags .badge-pill{background:rgba(255,255,255,.1);color:#E7F4F0;border:1px solid rgba(255,255,255,.16)}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec-y) 0}
.section.is-tight{padding:72px 0}
.section.is-plain{background:var(--bg-page)}
.section-head{margin-bottom:40px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--brand-600);text-transform:uppercase;
  margin-bottom:12px;
}
.section-head .eyebrow::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--grad-brand)}
.section-head h2{max-width:820px}
.section-head .sub{margin-top:12px;color:var(--text-600);font-size:16px;max-width:780px}
.section-head.with-link{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

.surface{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.surface:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:rgba(15,211,155,.35);
}
.surface-pad{padding:28px 30px}

/* ---------- 概述区 ---------- */
.overview-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
}
.overview-text h2{margin-bottom:16px}
.overview-text p{color:var(--text-600)}
.check-list{margin-top:22px;display:grid;gap:14px}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;box-shadow:var(--sh-1);
}
.check-list .ico{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:rgba(15,211,155,.12);color:var(--brand-600);
}
.check-list .ico svg{width:18px;height:18px}
.check-list strong{display:block;font-size:15px;font-weight:700;color:var(--text-900);margin-bottom:2px}
.check-list span{font-size:14px;color:var(--text-600);line-height:1.7}
.figure-card{
  border-radius:var(--r-xl);
  overflow:hidden;
  box-shadow:var(--sh-3);
  border:1px solid var(--line);
  background:#fff;
  position:relative;
}
.figure-card img{width:100%;aspect-ratio:16/11;object-fit:cover}
.figure-card figcaption{
  font-size:13px;color:var(--text-400);
  padding:12px 16px;text-align:center;background:#fff;
}
.stat-row{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
  margin-top:36px;
}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 24px;box-shadow:var(--sh-1);
  display:flex;align-items:center;gap:16px;
}
.stat-card .stat-num{
  font-size:28px;font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;
  background:var(--grad-brand);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  flex:0 0 auto;
}
.stat-card .stat-label{font-size:14px;color:var(--text-600);line-height:1.5}

/* ---------- 时间线 ---------- */
.steps{position:relative;padding-left:64px}
.steps::before{
  content:"";position:absolute;left:19px;top:26px;bottom:26px;width:2px;
  background:var(--line);border-radius:2px;
}
.step{
  position:relative;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 26px;box-shadow:var(--sh-1);
  margin-bottom:20px;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.step:last-child{margin-bottom:0}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,211,155,.35)}
.step-no{
  position:absolute;left:-64px;top:20px;
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--grad-brand);color:#06120F;
  font-weight:800;font-size:15px;
  font-variant-numeric:tabular-nums;
  box-shadow:0 6px 18px rgba(15,211,155,.3);
}
.step h3{margin-bottom:8px}
.step p{color:var(--text-600);font-size:15px;margin-bottom:0}
.step .step-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ---------- 要点卡 2x2 ---------- */
.point-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.point-card{padding:28px 30px}
.point-card .p-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.point-card .p-ico{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  display:grid;place-items:center;
  background:rgba(122,90,248,.1);color:var(--accent-500);
}
.point-card .p-ico svg{width:20px;height:20px}
.point-card h3{font-size:18px}
.point-card p{color:var(--text-600);font-size:15px;margin-bottom:0}
.point-card .p-tip{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:14px;color:var(--text-400);
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.accordion-item{
  background:#fff;border:1px solid var(--line)!important;
  border-radius:var(--r-md)!important;
  margin-bottom:12px;overflow:hidden;
  box-shadow:var(--sh-1);
}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{
  position:relative;
  font-size:16px;font-weight:600;color:var(--text-900);
  background:#fff;padding:20px 56px 20px 24px;
  box-shadow:none!important;border-radius:0!important;
}
.accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--grad-brand);transform:scaleY(0);transform-origin:top;
  transition:transform .22s cubic-bezier(.2,.7,.3,1);
}
.accordion-button:not(.collapsed){color:var(--brand-600);background:#fff}
.accordion-button:not(.collapsed)::before{transform:scaleY(1)}
.accordion-button::after{
  width:18px;height:18px;background-size:18px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235D6B68' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  transition:transform .22s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.accordion-body{
  padding:0 24px 22px;
  font-size:15px;line-height:1.8;color:var(--text-600);
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--ink-900);
  color:#fff;
  padding:72px 0;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(560px 260px at 20% 20%,rgba(15,211,155,.08),transparent 70%),
             radial-gradient(520px 260px at 82% 80%,rgba(122,90,248,.1),transparent 72%);
}
.cta-band .container{position:relative;z-index:1}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{color:#fff;max-width:640px}
.cta-band .cta-sub{color:rgba(255,255,255,.7);margin-top:12px;font-size:16px;max-width:600px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}
.cta-badges{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--ink-900);
  color:#C9D6D3;
  padding:64px 0 28px;
  font-size:14px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(15,211,155,.6),rgba(122,90,248,.6),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand .brand{font-size:18px;margin-bottom:16px}
.footer-brand p{color:#8FA39E;font-size:14px;line-height:1.8;max-width:340px}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-list{display:grid;gap:10px}
.footer-list a{color:#C9D6D3;font-size:14px}
.footer-list a:hover{color:var(--brand-300)}
.footer-bottom{
  margin-top:48px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C8D89;
}
.footer-bottom a{color:#9FB0AC}
.footer-bottom a:hover{color:var(--brand-300)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .24s ease,transform .24s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .overview-grid{gap:36px}
}
@media (max-width:991.98px){
  :root{--sec-y:64px}
  .mainnav .container{min-height:60px}
  .navbar-collapse{
    background:var(--ink-900);
    border:1px solid rgba(255,255,255,.08);
    border-radius:var(--r-md);
    margin:12px 0 16px;
    padding:6px 0;
  }
  .navmenu{width:100%;margin-bottom:0!important}
  .navmenu .nav-item{border-bottom:1px solid rgba(255,255,255,.08)}
  .navmenu .nav-item:last-child{border-bottom:0}
  .navmenu .nav-link{
    margin:0;padding:12px 18px;min-height:44px;
    display:flex;align-items:center;font-size:15px;
  }
  .navmenu .nav-link::after{display:none}
  .navmenu .nav-link.active{box-shadow:inset 3px 0 0 0 var(--brand-500);text-shadow:none}
  .nav-actions{padding:14px 18px 6px;width:100%}
  .nav-actions .btn{flex:1}
  .overview-grid{grid-template-columns:1fr;gap:32px}
  .point-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
  .footer-brand p{max-width:none}
}
@media (max-width:767.98px){
  h1{font-size:30px}
  h2{font-size:24px}
  .page-hero{padding:48px 0 56px}
  .page-hero .lead-line{font-size:16px}
  .stat-row{grid-template-columns:1fr;gap:14px}
  .stat-card{padding:18px 20px}
  .step{padding:20px 20px}
  .steps{padding-left:56px}
  .steps::before{left:16px}
  .step-no{left:-56px;width:34px;height:34px;font-size:14px;top:18px}
  .surface-pad{padding:22px 20px}
  .point-card{padding:22px 20px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .accordion-button{padding:18px 48px 18px 20px;font-size:15px}
  .accordion-body{padding:0 20px 20px}
}
@media (max-width:575.98px){
  .container{padding-left:20px;padding-right:20px}
  .topbar-right{display:none}
  .brand{font-size:17px}
  .brand-mark{width:30px;height:30px;border-radius:10px}
  .check-list li{padding:14px 14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --ink-900:#08110F;
  --ink-800:#0E1917;
  --brand-500:#0FD39B;
  --brand-600:#0AA87C;
  --brand-300:#6EE7C4;
  --accent-500:#7A5AF8;
  --accent-400:#9C8BFF;
  --warn-500:#FF8A3D;
  --bg-page:#F5F8F7;
  --bg-card:#FFFFFF;
  --line:#E4EBE9;
  --text-900:#1B2422;
  --text-600:#5D6B68;
  --text-400:#8A9794;
  --grad-brand:linear-gradient(120deg,#0FD39B 0%,#22B8C4 52%,#6C63FF 100%);
  --grad-ink:linear-gradient(180deg,rgba(8,17,15,.92) 0%,rgba(8,17,15,.55) 100%);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(8,17,15,.05);
  --sh-2:0 10px 28px rgba(8,17,15,.08);
  --sh-3:0 20px 48px rgba(8,17,15,.14);
  --sh-glow:0 0 0 1px rgba(15,211,155,.55),0 0 18px rgba(15,211,155,.35);
  --sec-y:96px;
  --bs-primary:#0FD39B;
  --bs-primary-rgb:15,211,155;
  --bs-link-color:#0AA87C;
  --bs-link-hover-color:#0FD39B;
  --bs-body-color:#1B2422;
  --bs-body-bg:#F5F8F7;
  --bs-border-color:#E4EBE9;
  --bs-border-radius:12px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-900);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-500)}
h1,h2,h3,h4{margin:0;color:var(--text-900);letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{max-width:1200px;width:100%;margin:0 auto;padding-left:24px;padding-right:24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;text-decoration:none;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,background-color .2s ease,color .2s ease,background-image .2s ease;
}
.btn:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.btn-primary{background-color:var(--brand-500);background-image:var(--grad-brand);color:#06120F !important}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--sh-2);background-image:linear-gradient(140deg,#0FD39B 0%,#22B8C4 52%,#6C63FF 100%);color:#06120F !important}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;border-color:rgba(15,211,155,.45);color:var(--brand-600) !important}
.btn-ghost:hover{background:rgba(15,211,155,.08);color:var(--brand-600) !important}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.45);color:#FFFFFF !important}
.btn-ghost-light:hover{background:rgba(255,255,255,.1);color:#FFFFFF !important}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.link-text{color:var(--brand-600);font-size:14px;font-weight:600}
.link-text:hover{text-decoration:underline;text-underline-offset:3px}

/* ---------- 顶部信息条 ---------- */
.site-header{position:relative;z-index:30}
.topbar{background:var(--ink-800);color:#9FB0AC;font-size:13px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px}
.topbar-left{display:flex;align-items:center;gap:8px}
.topbar-dot{width:7px;height:7px;border-radius:50%;background:var(--brand-500);box-shadow:0 0 10px rgba(15,211,155,.7);flex:none}
.topbar-right{display:flex;align-items:center;gap:18px;white-space:nowrap}
.topbar-right a{color:#C9D6D3;font-size:13px}
.topbar-right a:hover{color:var(--brand-300)}

/* ---------- 主导航 ---------- */
.mainnav{background:var(--ink-900);position:relative;padding:0}
.mainnav::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand-500),var(--accent-500),transparent);opacity:.6;
}
.mainnav .container{display:flex;align-items:center;flex-wrap:wrap;min-height:72px;gap:12px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#FFFFFF;white-space:nowrap}
.brand:hover{color:#FFFFFF}
.brand em{font-style:normal;color:var(--brand-300)}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(15,211,155,.12);border:1px solid rgba(15,211,155,.35);color:var(--brand-300);flex:none;
}
.brand-mark svg{width:19px;height:19px}
.mainnav .navbar-collapse{align-items:center}
.mainnav .navmenu{margin:0;align-items:center}
.navmenu .nav-item{position:relative}
.mainnav .nav-link{
  position:relative;display:inline-block;padding:8px 0;font-size:14px;font-weight:500;color:#C9D6D3;
  background:transparent;transition:color .2s ease;
}
.mainnav .nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-16px;height:2px;border-radius:2px;
  background:transparent;transition:background .2s ease,box-shadow .2s ease;
}
.mainnav .nav-link:hover{color:#FFFFFF}
.mainnav .nav-link:hover::after{background:var(--brand-500)}
.mainnav .nav-link.active{color:var(--brand-300)}
.mainnav .nav-link.active::after{background:var(--grad-brand);box-shadow:var(--sh-glow)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.navbar-toggler{
  border:1px solid rgba(255,255,255,.2);border-radius:10px;padding:7px 10px;margin-left:auto;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(15,211,155,.25)}
.navbar-toggler-icon{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%23C9D6D3' stroke-width='2' stroke-linecap='round' d='M4 8h22M4 15h22M4 22h22'/%3E%3C/svg%3E");
  width:22px;height:22px;background-size:22px 22px;
}

/* ---------- 面包屑与文章头 ---------- */
.article-wrap{padding:28px 0 0}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-400);margin-bottom:18px}
.crumb a{color:var(--text-600)}
.crumb a:hover{color:var(--brand-600)}
.crumb .sep{color:#C3CFCC}
.crumb .current{color:var(--text-400);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head h1{
  font-size:clamp(26px,3.2vw,38px);line-height:1.28;font-weight:800;max-width:900px;margin:0 0 18px;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;font-size:14px;color:var(--text-400);
  padding-bottom:22px;border-bottom:1px solid var(--line);
}
.badge-soft{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(15,211,155,.12);color:var(--brand-600);font-size:13px;font-weight:600;
}
.badge-dark{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.1);color:#E7F4F0;font-size:13px;font-weight:600;
}

/* ---------- 两栏布局 ---------- */
.layout{
  display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:52px;
  padding:40px 0 var(--sec-y);align-items:start;
}

/* ---------- 正文 ---------- */
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--text-900);word-break:break-word}
.article-body > * + *{margin-top:20px}
.article-body h2{
  font-size:24px;line-height:1.4;font-weight:700;margin:40px 0 0;padding-left:14px;position:relative;scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--grad-brand);
}
.article-body h3{font-size:20px;line-height:1.45;font-weight:700;margin:30px 0 0}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 0}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-500)}
.article-body ul,.article-body ol{padding-left:24px;list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:10px 0}
.article-body blockquote{
  margin:0;padding:16px 20px;background:var(--bg-page);border-left:3px solid var(--brand-500);
  border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--text-600);
}
.article-body img{border-radius:var(--r-md);width:100%}
.article-body figure{margin:0}
.article-body figcaption{font-size:13px;color:var(--text-400);text-align:center;margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;overflow:hidden;border-radius:var(--r-md)}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body th{background:#F1F5F4;font-weight:600}
.article-body code{
  background:#F1F5F4;padding:2px 6px;border-radius:6px;font-size:15px;
  font-family:ui-monospace,Menlo,Consolas,monospace;
}
.article-body pre{
  background:var(--ink-900);color:#D9E5E2;padding:18px 20px;border-radius:var(--r-md);overflow:auto;
}
.article-body pre code{background:transparent;padding:0;color:inherit}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* ---------- 空态 ---------- */
.empty-state{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  padding:56px 32px;text-align:center;
}
.empty-state svg{width:40px;height:40px;color:var(--brand-500);margin-bottom:16px}
.empty-state h2{font-size:22px;font-weight:700;padding-left:0;margin:0 0 8px}
.empty-state h2::before{display:none}
.empty-state p{color:var(--text-600);font-size:15px;margin-bottom:22px}

/* ---------- 文末 ---------- */
.after-body{margin-top:48px}
.tag-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;padding:22px 0;border-top:1px solid var(--line)}
.tag-row-label{font-size:13px;color:var(--text-400);margin-right:4px}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:#F1F5F4;color:var(--text-600);font-size:13px;font-weight:600;
}
.tag:hover{background:rgba(15,211,155,.12);color:var(--brand-600)}
.page-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px}
.page-nav-card{
  display:block;background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px 22px;box-shadow:var(--sh-1);transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.page-nav-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,211,155,.35)}
.page-nav-card .dir{display:block;font-size:13px;color:var(--brand-600);font-weight:600;margin-bottom:6px}
.page-nav-card strong{display:block;font-size:16px;font-weight:600;color:var(--text-900);line-height:1.5}
.page-nav-card.next{text-align:right}

/* ---------- 侧栏 ---------- */
.sidebar-inner{display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:24px;transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.side-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,211,155,.35)}
.side-title{font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--grad-brand)}
.toc-list li{margin:0}
.toc-list a{
  display:block;padding:8px 12px;font-size:14px;color:var(--text-600);border-left:2px solid transparent;
  border-radius:0 var(--r-sm) var(--r-sm) 0;line-height:1.5;transition:all .2s ease;
}
.toc-list a:hover{color:var(--brand-600);background:#F7FAF9}
.toc-list a.active{color:var(--text-900);border-left-color:var(--brand-500);background:#F7FAF9;font-weight:600}
.side-list li + li{border-top:1px solid var(--line)}
.side-list a{display:block;padding:13px 0;color:var(--text-900);font-size:15px;font-weight:600;line-height:1.5}
.side-list a em{display:block;font-style:normal;font-size:13px;font-weight:400;color:var(--text-400);margin-top:5px}
.side-list a:hover{color:var(--brand-600)}
.side-card-cta{
  background-color:var(--ink-900);
  background-image:radial-gradient(circle at 88% 8%,rgba(15,211,155,.22),transparent 62%),linear-gradient(140deg,#0FD39B 0%,#22B8C4 55%,#6C63FF 100%);
  border-color:transparent;color:#FFFFFF;
}
.side-card-cta:hover{border-color:transparent}
.side-card-cta h3{color:#FFFFFF;font-size:18px;font-weight:700;margin-bottom:8px}
.side-card-cta p{color:rgba(255,255,255,.88);font-size:14px;line-height:1.7;margin-bottom:18px}
.side-card-cta .btn{background:#06120F;background-image:none;color:#FFFFFF !important}
.side-card-cta .btn:hover{background:#0C1F1A;box-shadow:0 10px 24px rgba(6,18,15,.35)}

/* ---------- 板块头 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;margin-bottom:8px}
.sec-head p{font-size:15px;color:var(--text-600)}

/* ---------- 相关推荐 ---------- */
.related{padding-bottom:var(--sec-y)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card-post{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.card-post:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,211,155,.35)}
.post-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#E9F7F2,#DDE9F6)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s cubic-bezier(.2,.7,.3,1)}
.card-post:hover .post-thumb img{transform:scale(1.03)}
.post-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:17px;font-weight:600;line-height:1.5}
.post-body h3 a{color:var(--text-900)}
.post-body h3 a:hover{color:var(--brand-600)}
.post-body .desc{font-size:14px;color:var(--text-600);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-400);margin-top:auto}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  background-color:var(--ink-900);
  background-image:radial-gradient(circle at 18% 20%,rgba(15,211,155,.14),transparent 55%),radial-gradient(circle at 82% 78%,rgba(122,90,248,.16),transparent 58%);
  color:#FFFFFF;padding:var(--sec-y) 0;
}
.cta-inner{text-align:center;display:flex;flex-direction:column;align-items:center;gap:18px}
.cta-inner h2{color:#FFFFFF;font-size:clamp(24px,2.6vw,34px);font-weight:700}
.cta-inner p{color:#B9C8C4;font-size:15px;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;margin-top:6px}
.cta-badges{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-top:8px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);color:#9FB0AC;position:relative;padding:64px 0 28px;font-size:14px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand-500),var(--accent-500),transparent);opacity:.6;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px;font-size:17px}
.footer-brand p{color:#8FA19D;font-size:14px;line-height:1.8;max-width:340px}
.footer-title{font-size:15px;font-weight:700;color:#FFFFFF;margin-bottom:16px}
.footer-list li{margin-bottom:11px}
.footer-list a{color:#C9D6D3;font-size:14px}
.footer-list a:hover{color:var(--brand-300)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  color:#7E908C;font-size:13px;
}
.footer-bottom a{color:#9FB0AC}
.footer-bottom a:hover{color:var(--brand-300)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .24s ease,transform .24s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .layout{gap:40px}
}
@media (max-width:991.98px){
  :root{--sec-y:64px}
  .topbar-left{display:none}
  .topbar .container{justify-content:flex-end}
  .mainnav .container{min-height:60px}
  .mainnav .navbar-collapse{
    background:var(--ink-900);border-top:1px solid rgba(255,255,255,.08);
    margin-top:10px;padding:10px 0 20px;flex-basis:100%;
  }
  .mainnav .navmenu{display:block;width:100%}
  .navmenu .nav-item{position:relative;border-bottom:1px solid rgba(255,255,255,.08)}
  .mainnav .nav-link{display:flex;align-items:center;min-height:44px;padding:11px 0 11px 14px;font-size:15px}
  .mainnav .nav-link::after{display:none}
  .mainnav .nav-link.active::before{
    content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:2px;background:var(--grad-brand);
  }
  .nav-actions{width:100%;flex-direction:column;align-items:stretch;gap:10px;margin:18px 0 0}
  .nav-actions .btn{width:100%}
  .layout{grid-template-columns:1fr;padding:32px 0 var(--sec-y)}
  .sidebar-inner{margin-top:8px}
  .related-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .article-head h1{font-size:clamp(24px,6vw,30px)}
  .layout{gap:28px}
  .page-nav{grid-template-columns:1fr}
  .page-nav-card.next{text-align:left}
  .related-grid{grid-template-columns:1fr}
  .cta-actions{flex-direction:column;width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding-left:20px;padding-right:20px}
  .article-body{font-size:16px}
  .empty-state{padding:40px 20px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink-900:#08110F;
  --ink-800:#0E1917;
  --brand-500:#0FD39B;
  --brand-600:#0AA87C;
  --brand-300:#6EE7C4;
  --accent-500:#7A5AF8;
  --accent-400:#9C8BFF;
  --warn-500:#FF8A3D;
  --bg-page:#F5F8F7;
  --bg-card:#FFFFFF;
  --line:#E4EBE9;
  --text-900:#1B2422;
  --text-600:#5D6B68;
  --text-400:#8A9794;
  --grad-brand:linear-gradient(120deg,#0FD39B 0%,#22B8C4 52%,#6C63FF 100%);
  --grad-ink:linear-gradient(180deg,rgba(8,17,15,.92) 0%,rgba(8,17,15,.55) 100%);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(8,17,15,.05);
  --sh-2:0 10px 28px rgba(8,17,15,.08);
  --sh-3:0 20px 48px rgba(8,17,15,.14);
  --sh-glow:0 0 0 1px rgba(15,211,155,.55),0 0 18px rgba(15,211,155,.35);
  --sec-y:96px;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-body-color:#1B2422;
  --bs-border-color:#E4EBE9;
  --bs-primary:#0FD39B;
  --bs-link-color:#0AA87C;
  --bs-link-hover-color:#0FD39B;
  --bs-border-radius:14px;
}
*,
*::before,
*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-900);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-500)}
img{max-width:100%;display:block}
h1,h2,h3,h4,h5{margin:0;color:var(--text-900);font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部信息条 ---------- */
.site-header{position:relative;z-index:1030}
.topbar{background:var(--ink-800);color:#9FB2AE;font-size:13px;height:36px;display:flex;align-items:center}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left{display:flex;align-items:center;gap:10px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.topbar-dot{width:7px;height:7px;border-radius:50%;background:var(--brand-500);box-shadow:0 0 10px rgba(15,211,155,.85);flex:0 0 auto}
.topbar-right{display:flex;gap:18px;flex:0 0 auto}
.topbar-right a{color:#9FB2AE;font-size:13px}
.topbar-right a:hover{color:var(--brand-300)}

/* ---------- 导航 ---------- */
.mainnav{
  background:var(--ink-900);
  min-height:72px;
  padding:0;
  position:relative;
  border-bottom:1px solid transparent;
}
.mainnav::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(15,211,155,.6),rgba(122,90,248,.6),transparent);
}
.mainnav .container{display:flex;align-items:center;min-height:72px;flex-wrap:wrap}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:#FFFFFF;letter-spacing:.01em}
.brand:hover{color:#FFFFFF}
.brand em{font-style:normal;color:var(--brand-300)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;
  color:#06120F;flex:0 0 auto;
  box-shadow:0 6px 16px rgba(15,211,155,.32);
}
.brand-mark svg{width:20px;height:20px}
.navbar-toggler{
  border:1px solid rgba(255,255,255,.18);
  border-radius:10px;
  padding:6px 10px;
  margin-left:auto;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(15,211,155,.25)}
.navbar-toggler-icon{
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba(255,255,255,0.88)' stroke-width='2' stroke-linecap='round' d='M4 8h22M4 15h22M4 22h22'/%3E%3C/svg%3E");
  width:1.4em;height:1.4em;
}
.navmenu{gap:28px;align-items:center}
.navmenu .nav-link{
  color:#C9D6D3;
  font-size:14px;
  font-weight:500;
  padding:8px 2px;
  position:relative;
  background:transparent;
}
.navmenu .nav-link::after{
  content:"";
  position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--grad-brand);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .22s cubic-bezier(.2,.7,.3,1);
}
.navmenu .nav-link:hover{color:#FFFFFF}
.navmenu .nav-link:hover::after{transform:scaleX(1);opacity:.6}
.navmenu .nav-link.active{
  color:var(--brand-300);
  box-shadow:var(--sh-glow);
  border-radius:6px;
}
.navmenu .nav-link.active::after{transform:scaleX(1);opacity:1}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}

/* ---------- 按钮 ---------- */
.btn{
  --bs-btn-font-weight:700;
  font-weight:700;
  border-radius:12px;
  height:48px;
  padding:0 24px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  line-height:1;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,background-color .2s ease,border-color .2s ease;
  border:1px solid transparent;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:12px}
.btn-lg{height:52px;font-size:16px}
.btn.btn-primary{
  background-color:var(--brand-500);
  background-image:var(--grad-brand);
  color:#06120F;
  border:0;
  box-shadow:0 8px 20px rgba(15,211,155,.26);
}
.btn.btn-primary:hover,
.btn.btn-primary:focus-visible{
  background-image:linear-gradient(140deg,#0FD39B 0%,#22B8C4 52%,#6C63FF 100%);
  color:#06120F;
  transform:translateY(-1px);
  box-shadow:var(--sh-2);
}
.btn.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(15,211,155,.22)}
.btn-ghost{
  background:transparent;
  border:1px solid rgba(15,211,155,.45);
  color:var(--brand-600);
}
.btn-ghost:hover{
  background:rgba(15,211,155,.08);
  color:var(--brand-600);
  border-color:rgba(15,211,155,.7);
  transform:translateY(-1px);
}
.btn-ghost.on-dark{
  border-color:rgba(255,255,255,.28);
  color:#EAF4F1;
}
.btn-ghost.on-dark:hover{
  background:rgba(255,255,255,.08);
  color:#FFFFFF;
  border-color:rgba(255,255,255,.5);
}
.link-more{font-size:14px;font-weight:600;color:var(--brand-600);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{text-decoration:underline;text-underline-offset:3px}
.btn:disabled,.btn.disabled{opacity:.4;cursor:not-allowed}

/* ---------- 通用 ---------- */
main{display:block}
.section{padding:var(--sec-y) 0}
.section-head{max-width:720px;margin:0 auto 40px;text-align:center}
.section-head.left{margin-left:0;text-align:left}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;margin-bottom:12px}
.section-head .sub{font-size:15px;color:var(--text-600)}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-600);
  background:rgba(15,211,155,.12);
  border-radius:var(--r-pill);
  height:26px;padding:0 12px;margin-bottom:14px;
}
.badge-soft{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  font-size:13px;font-weight:600;
  background:rgba(15,211,155,.12);color:var(--brand-600);
}
.badge-outline{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:var(--brand-600);
  background:linear-gradient(#fff,#fff) padding-box,var(--grad-brand) border-box;
  border:1px solid transparent;
}
.badge-ink{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  font-size:13px;font-weight:600;
  background:rgba(255,255,255,.12);color:#FFFFFF;
  border:1px solid rgba(255,255,255,.16);
}
.badge-tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  font-size:13px;font-weight:600;
  background:#F1F5F4;color:var(--text-600);
}
.card{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,211,155,.35)}

/* ---------- 分类页 Hero ---------- */
.cat-hero{
  position:relative;
  background:var(--ink-900);
  color:#FFFFFF;
  padding:64px 0 84px;
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.34;
}
.cat-hero::after{
  content:"";
  position:absolute;inset:0;
  background:var(--grad-ink);
}
.cat-hero .container{position:relative;z-index:2;text-align:center;max-width:900px}
.breadcrumb-line{
  display:flex;justify-content:center;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.6);margin-bottom:20px;flex-wrap:wrap;
}
.breadcrumb-line a{color:rgba(255,255,255,.6)}
.breadcrumb-line a:hover{color:var(--brand-300)}
.breadcrumb-line .sep{color:rgba(255,255,255,.32)}
.breadcrumb-line .now{color:rgba(255,255,255,.9)}
.cat-hero h1{
  font-size:clamp(30px,4.2vw,52px);
  line-height:1.15;
  font-weight:800;
  color:#FFFFFF;
  margin-bottom:18px;
}
.cat-hero h1 em{font-style:normal;color:var(--brand-300)}
.cat-hero .lead{
  font-size:16px;
  color:rgba(255,255,255,.76);
  max-width:660px;
  margin:0 auto 28px;
}
.hero-btns{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-bottom:30px}
.hero-badges{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}

/* ---------- 权益对照表 ---------- */
.table-wrap{position:relative}
.table-scroll{
  overflow-x:auto;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  -webkit-overflow-scrolling:touch;
}
.cmp-table{width:100%;min-width:760px;border-collapse:separate;border-spacing:0}
.cmp-table th,
.cmp-table td{
  height:56px;
  padding:10px 18px;
  font-size:15px;
  text-align:center;
  vertical-align:middle;
  border-bottom:1px solid var(--line);
  color:var(--text-600);
  background:#fff;
}
.cmp-table thead th{
  background-image:var(--grad-brand);
  background-color:var(--brand-500);
  color:#06120F;
  font-size:14px;
  font-weight:700;
  position:relative;
  border-bottom:0;
  white-space:nowrap;
}
.cmp-table thead th:first-child{
  text-align:left;
  background-image:none;
  background-color:rgba(255,255,255,.32);
  color:#06120F;
}
.cmp-table tbody th{
  text-align:left;
  font-weight:600;
  color:var(--text-900);
  background:#fff;
  white-space:nowrap;
}
.cmp-table tbody tr:nth-child(even) td,
.cmp-table tbody tr:nth-child(even) th{background:#F7FAF9}
.cmp-table tbody tr:last-child td,
.cmp-table tbody tr:last-child th{border-bottom:0}
.cmp-table thead th:first-child,
.cmp-table tbody th:first-child{
  position:sticky;left:0;z-index:2;
  box-shadow:1px 0 0 var(--line);
}
.cmp-table td.is-featured,
.cmp-table th.is-featured{
  box-shadow:inset 2px 0 0 var(--brand-500),inset -2px 0 0 var(--brand-500);
  background:#F3FCF9;
}
.cmp-table th.is-featured{
  background-image:var(--grad-brand);
  box-shadow:inset 2px 0 0 var(--brand-500),inset -2px 0 0 var(--brand-500);
}
.cmp-table th.is-featured .th-badge{
  position:absolute;top:-12px;left:50%;transform:translateX(-50%);
  background:#FFFFFF;
  color:var(--brand-600);
  font-size:12px;
  font-weight:700;
  height:22px;padding:0 10px;
  border-radius:var(--r-pill);
  display:inline-flex;align-items:center;
  box-shadow:var(--sh-2);
}
.cell-yes,
.cell-no{display:inline-flex;align-items:center;gap:6px;justify-content:center;font-size:14px;font-weight:600}
.cell-yes{color:var(--brand-600)}
.cell-no{color:var(--text-400)}
.cell-yes svg,.cell-no svg{width:16px;height:16px;flex:0 0 auto}
.scroll-hint{
  display:none;
  font-size:13px;color:var(--text-400);text-align:right;margin-top:10px;
}
.table-note{margin-top:14px;font-size:13px;color:var(--text-400)}

/* ---------- 等级卡 ---------- */
.tier-stack{display:grid;gap:20px}
.tier-card{
  padding:28px 30px;
  display:grid;
  grid-template-columns:auto 1fr;
  gap:20px 24px;
  align-items:start;
  position:relative;
  overflow:hidden;
}
.tier-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:var(--grad-brand);
  opacity:0;transition:opacity .2s ease;
}
.tier-card:hover::before{opacity:1}
.tier-no{
  width:44px;height:44px;border-radius:50%;
  background:var(--grad-brand);
  color:#06120F;font-weight:800;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
  box-shadow:0 8px 18px rgba(15,211,155,.28);
}
.tier-main h3{font-size:20px;line-height:1.4;margin-bottom:6px}
.tier-main .tier-desc{font-size:14px;color:var(--text-600);margin-bottom:16px}
.tier-points{display:grid;gap:10px}
.tier-points li{display:flex;gap:10px;font-size:15px;color:var(--text-600)}
.tier-points svg{width:18px;height:18px;color:var(--brand-600);flex:0 0 auto;margin-top:3px}
.tier-foot{margin-top:18px}
.tier-card.is-featured{
  border-color:rgba(15,211,155,.45);
  box-shadow:var(--sh-2);
}
.tier-card.is-featured .tier-no{background:linear-gradient(120deg,#7A5AF8 0%,#22B8C4 100%);color:#FFFFFF}
@media (min-width:992px){
  .tier-stack{padding-right:140px}
  .tier-card:nth-child(2){margin-left:60px}
  .tier-card:nth-child(3){margin-left:120px}
}

/* ---------- 确认清单 ---------- */
.check-band{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  padding:36px;
  box-shadow:var(--sh-1);
}
.check-list{display:grid;gap:0}
.check-item{
  display:grid;
  grid-template-columns:56px 1fr;
  gap:20px;
  padding:22px 0;
  border-bottom:1px dashed var(--line);
}
.check-item:last-child{border-bottom:0;padding-bottom:0}
.check-item:first-child{padding-top:0}
.check-index{
  font-size:22px;font-weight:800;color:var(--brand-500);
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.check-item h4{font-size:17px;font-weight:600;margin-bottom:6px}
.check-item p{font-size:15px;color:var(--text-600)}

/* ---------- 内容预览 ---------- */
.preview-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.preview-card{overflow:hidden;display:flex;flex-direction:column}
.preview-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--grad-brand);border-radius:var(--r-lg) var(--r-lg) 0 0}
.preview-media img{width:100%;height:100%;object-fit:cover;transition:transform .26s cubic-bezier(.2,.7,.3,1)}
.preview-card:hover .preview-media img{transform:scale(1.03)}
.preview-body{padding:24px 26px 26px}
.preview-body h4{font-size:18px;line-height:1.45;margin:14px 0 10px;transition:color .2s ease}
.preview-card:hover .preview-body h4{color:var(--brand-600)}
.preview-body p{font-size:15px;color:var(--text-600)}
.preview-meta{display:flex;gap:16px;font-size:13px;color:var(--text-400);margin-top:16px;font-variant-numeric:tabular-nums}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-color:rgba(15,211,155,.45);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;
  background:transparent;
  border:0;
  text-align:left;
  padding:20px 22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:16px;
  font-weight:600;
  color:var(--text-900);
  cursor:pointer;
}
.faq-q:hover{color:var(--brand-600)}
.faq-ico{
  width:20px;height:20px;flex:0 0 auto;
  color:var(--brand-600);
  transition:transform .24s cubic-bezier(.2,.7,.3,1);
}
.faq-item.open .faq-ico{transform:rotate(180deg)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s cubic-bezier(.2,.7,.3,1);
}
.faq-a-inner{
  padding:0 22px 22px 22px;
  border-left:3px solid transparent;
  margin-left:22px;
  padding-left:18px;
}
.faq-item.open .faq-a-inner{border-left-color:var(--brand-500)}
.faq-a p{font-size:15px;line-height:1.8;color:var(--text-600)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--ink-900);
  color:#FFFFFF;
  padding:80px 0;
  overflow:hidden;
  margin-top:0;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(circle at 20% 30%,rgba(15,211,155,.14),transparent 55%),
             radial-gradient(circle at 82% 70%,rgba(122,90,248,.14),transparent 55%);
}
.cta-band .container{position:relative;z-index:2;text-align:center;max-width:820px}
.cta-band h2{color:#FFFFFF;font-size:clamp(24px,2.6vw,34px);line-height:1.25;margin-bottom:14px}
.cta-band .sub{color:rgba(255,255,255,.72);font-size:15px;margin-bottom:28px}
.cta-btns{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-bottom:28px}
.cta-badges{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);
  color:#C9D6D3;
  padding:64px 0 0;
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(15,211,155,.6),rgba(122,90,248,.6),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:#93A5A1;max-width:330px}
.footer-title{font-size:15px;color:#FFFFFF;font-weight:600;margin-bottom:16px}
.footer-list li{margin-bottom:10px}
.footer-list a{font-size:14px;color:#C9D6D3}
.footer-list a:hover{color:var(--brand-300)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:#8A9794;
  flex-wrap:wrap;
}
.footer-bottom a{color:#8A9794}
.footer-bottom a:hover{color:var(--brand-300)}

/* ---------- 动效 ---------- */
[data-reveal]{opacity:0;transform:translateY(8px);transition:opacity .26s ease,transform .26s cubic-bezier(.2,.7,.3,1)}
[data-reveal].in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  [data-reveal]{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .preview-grid{gap:20px}
}
@media (max-width:991.98px){
  :root{--sec-y:72px}
  .mainnav{min-height:60px}
  .mainnav .container{min-height:60px}
  .navbar-collapse{
    background:var(--ink-900);
    margin-top:12px;
    border-radius:var(--r-md);
    padding:8px 0 16px;
    border:1px solid rgba(255,255,255,.08);
  }
  .navmenu{gap:0;width:100%}
  .navmenu .nav-item{width:100%}
  .navmenu .nav-link{
    height:44px;
    display:flex;
    align-items:center;
    padding:0 18px;
    border-bottom:1px solid rgba(255,255,255,.08);
    border-radius:0;
    box-shadow:none;
  }
  .navmenu .nav-link::after{display:none}
  .navmenu .nav-link.active{
    color:var(--brand-300);
    border-left:3px solid var(--brand-500);
    padding-left:15px;
  }
  .nav-actions{padding:16px 18px 4px;margin-left:0;flex-direction:column;width:100%}
  .nav-actions .btn{width:100%}
  .cat-hero{padding:44px 0 64px}
  .tier-card{grid-template-columns:1fr;gap:14px}
  .tier-stack{padding-right:0}
  .preview-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  :root{--sec-y:64px}
  h1{font-size:30px}
  .topbar{display:none}
  .check-band{padding:24px}
  .check-item{grid-template-columns:44px 1fr;gap:14px}
  .scroll-hint{display:block}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .cta-band{padding:60px 0}
  .hero-btns .btn,.cta-btns .btn{width:100%}
  .tier-card{padding:24px 22px}
}
@media (max-width:575.98px){
  .container{padding-left:20px;padding-right:20px}
  .brand{font-size:17px}
  .badge-soft,.badge-outline,.badge-ink,.badge-tag{font-size:12px}
}