/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --brand:#12D6A0;
  --brand-dark:#0BA57B;
  --brand-soft:rgba(18,214,160,.10);
  --accent:#FF6B2C;
  --accent-dark:#E85A1D;
  --ink:#0E1113;
  --ink-2:#12161A;
  --ink-3:#171C20;
  --light:#F5F7F6;
  --card:#FFFFFF;
  --line:#E3E8E6;
  --line-dark:rgba(255,255,255,.08);
  --td:#EAF2EF;
  --td2:#9FB0AA;
  --tl:#14181A;
  --tl2:#5C6B66;
  --rc:14px;
  --ri:12px;
  --rb:8px;
  --shadow:0 1px 2px rgba(14,17,19,.06),0 14px 34px -20px rgba(14,17,19,.28);
  --shadow-h:0 2px 4px rgba(14,17,19,.08),0 22px 46px -22px rgba(14,17,19,.34);
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
  --bs-primary:#12D6A0;
  --bs-primary-rgb:18,214,160;
  --bs-body-color:#14181A;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-border-radius:14px;
  --bs-border-radius-sm:8px;
  --bs-link-color:#0BA57B;
  --bs-link-hover-color:#0BA57B;
  --bs-border-color:#E3E8E6;
}
/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--tl);
  background:#fff;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--ri)}
a{text-decoration:none;color:inherit;transition:color .18s ease}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.3;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);outline-offset:2px;border-radius:4px}
.container-xxl{max-width:1280px;padding-left:20px;padding-right:20px;margin:0 auto}
.num{font-variant-numeric:tabular-nums;font-family:var(--mono)}
/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(14,17,19,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-dark);
  padding:0;
}
.site-header .nav-inner{
  height:64px;display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;letter-spacing:.02em}
.brand:hover{color:#fff}
.brand-mark{width:30px;height:30px;flex:0 0 30px}
.brand-text{white-space:nowrap}
.nav-collapse{display:flex;align-items:center;gap:22px;flex:1 1 auto;justify-content:flex-end}
.nav-links{display:flex;align-items:center;gap:4px;margin:0}
.nav-links .nav-link{
  color:var(--td2);font-size:14.5px;font-weight:500;padding:8px 12px;border-radius:var(--rb);
  transition:color .18s ease,background-color .18s ease;
}
.nav-links .nav-link:hover{color:var(--td);background:rgba(255,255,255,.05)}
.nav-links .nav-link.active{color:var(--brand);background:var(--brand-soft)}
.nav-cta{
  --bs-btn-padding-y:.45rem;--bs-btn-padding-x:1.05rem;--bs-btn-font-size:14px;
}
.navbar-toggler{
  border:1px solid var(--line-dark);padding:6px 10px;border-radius:var(--rb);
  background:transparent;color:var(--td);line-height:1;
}
.navbar-toggler:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:2px}
.navbar-toggler i{font-size:20px;vertical-align:middle}
/* ============ 按钮 ============ */
.btn{border-radius:var(--rb)!important;font-weight:600;transition:all .18s ease;border-width:1px}
.btn-accent{
  background:var(--accent);border-color:var(--accent);color:#fff;
  padding:.7rem 1.5rem;font-size:15px;
}
.btn-accent:hover,.btn-accent:focus{
  background:var(--accent-dark);border-color:var(--accent-dark);color:#fff;
  transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(255,107,44,.85);
}
.btn-accent:active{transform:translateY(0)}
.btn-ghost-dark{
  background:transparent;border:1px solid rgba(255,255,255,.24);color:var(--td);
  padding:.7rem 1.5rem;font-size:15px;
}
.btn-ghost-dark:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft)}
.btn-ghost-light{
  background:transparent;border:1px solid #CFD8D5;color:var(--tl);
  padding:.7rem 1.5rem;font-size:15px;
}
.btn-ghost-light:hover{color:var(--brand-dark);border-color:var(--brand);background:var(--brand-soft)}
.btn-link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand-dark);font-weight:600;font-size:14.5px;
  background:none;border:none;padding:0;
}
.btn-link-arrow i{transition:transform .18s ease}
.btn-link-arrow:hover i{transform:translateX(4px)}
/* ============ 通用板块 ============ */
.section{padding:88px 0;position:relative}
.section-tight{padding:64px 0}
.section-light{background:var(--light)}
.section-dark{background:var(--ink-2);color:var(--td)}
.section-dark .sec-sub{color:var(--td2)}
.sec-head{max-width:780px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-num{
  display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:.16em;
  color:var(--brand-dark);font-weight:600;margin-bottom:12px;
}
.section-dark .sec-num{color:var(--brand)}
.sec-title{font-size:clamp(22px,2.6vw,34px);font-weight:800;margin-bottom:14px}
.sec-sub{font-size:15px;line-height:1.8;color:var(--tl2);max-width:74ch}
.sec-title .hl{color:var(--brand-dark)}
.section-dark .sec-title .hl{color:var(--brand)}
/* ============ 卡片通用 ============ */
.card-x{
  background:var(--card);border:1px solid var(--line);border-radius:var(--rc);
  padding:22px;box-shadow:var(--shadow);height:100%;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card-x:hover{transform:translateY(-2px);box-shadow:var(--shadow-h);border-color:rgba(18,214,160,.45)}
.section-dark .card-x{
  background:var(--ink-3);border:1px solid rgba(18,214,160,.20);
  box-shadow:inset 0 0 0 1px rgba(18,214,160,.05);
}
.section-dark .card-x:hover{border-color:rgba(18,214,160,.5)}
.card-icon{
  width:42px;height:42px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(18,214,160,.35);background:var(--brand-soft);color:var(--brand-dark);font-size:19px;
  margin-bottom:16px;
}
.section-dark .card-icon{color:var(--brand);background:rgba(18,214,160,.12)}
.card-title{font-size:18px;font-weight:700;margin-bottom:8px}
.card-desc{font-size:14.5px;line-height:1.7;color:var(--tl2)}
.section-dark .card-desc{color:var(--td2)}
/* ============ 标签 ============ */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:500;
  background:#EEF3F1;color:var(--tl2);border:1px solid transparent;
  transition:all .18s ease;
}
.pill:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-soft)}
.pill-brand{background:var(--brand-soft);color:var(--brand-dark);border-color:rgba(18,214,160,.35)}
.section-dark .pill{background:rgba(255,255,255,.06);color:var(--td2)}
.section-dark .pill:hover{border-color:var(--brand);color:var(--brand)}
/* ============ HERO ============ */
.hero{position:relative;background:var(--ink);color:var(--td);padding:76px 0 84px;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.jpg');
  background-size:cover;background-position:center;
  opacity:.34;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(14,17,19,.96) 0%,rgba(14,17,19,.86) 52%,rgba(14,17,19,.66) 100%);
}
.hero-grid-lines{
  position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:64px 64px;
}
.hero-inner{position:relative;z-index:2}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);border:1px solid rgba(18,214,160,.35);background:rgba(18,214,160,.08);
  padding:6px 14px;border-radius:999px;margin-bottom:22px;
}
.hero h1{font-size:clamp(28px,4.4vw,52px);font-weight:800;color:#fff;margin-bottom:20px;line-height:1.22}
.hero-lead{font-size:15.5px;line-height:1.85;color:var(--td2);max-width:62ch;margin-bottom:26px}
.quiz-chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.chip{
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.04);color:var(--td);
  border-radius:999px;padding:8px 16px;font-size:13.5px;font-weight:500;cursor:pointer;
  transition:all .18s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.is-active{background:var(--brand-soft);border-color:var(--brand);color:var(--brand);font-weight:600}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px;padding-top:22px;border-top:1px solid var(--line-dark)}
.hero-meta-item{font-size:13px;color:var(--td2)}
.hero-meta-item strong{display:block;font-family:var(--mono);font-size:20px;color:#fff;font-weight:700;margin-bottom:2px}
/* 结果预览面板 */
.quiz-panel{
  background:rgba(23,28,32,.92);border:1px solid rgba(18,214,160,.24);border-radius:var(--rc);
  padding:24px;backdrop-filter:blur(6px);
}
.quiz-panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--line-dark)}
.quiz-panel-head span{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--td2)}
.quiz-row{display:flex;align-items:center;gap:14px;padding:13px 0;border-bottom:1px dashed rgba(255,255,255,.08)}
.quiz-row:last-of-type{border-bottom:none}
.quiz-row i{color:var(--brand);font-size:17px;flex:0 0 auto}
.quiz-row .k{font-size:13px;color:var(--td2);flex:0 0 84px}
.quiz-row .v{font-size:14px;color:#fff;font-weight:600}
.quiz-row .v small{display:block;font-weight:400;font-size:12px;color:var(--td2);margin-top:2px}
.quiz-gauge{margin-top:18px}
.quiz-gauge .track{height:6px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.quiz-gauge .fill{height:100%;width:82%;background:linear-gradient(90deg,var(--brand),var(--accent));border-radius:999px}
.quiz-gauge .labels{display:flex;justify-content:space-between;font-size:11.5px;color:var(--td2);margin-top:8px;font-family:var(--mono)}
/* ============ 数据条 ============ */
.stats-band{background:var(--ink);border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);padding:46px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-item{border-left:1px solid rgba(18,214,160,.28);padding-left:20px}
.stat-item .val{font-family:var(--mono);font-size:clamp(26px,3.2vw,38px);font-weight:700;color:var(--brand);line-height:1.1;font-variant-numeric:tabular-nums}
.stat-item .val em{font-style:normal;font-size:15px;color:var(--td2);margin-left:4px}
.stat-item .lab{font-size:13.5px;color:var(--td2);margin-top:8px}
.stat-note{font-size:12.5px;color:var(--td2);margin-top:22px;opacity:.75}
/* ============ 场景矩阵 ============ */
.scene-card{display:flex;flex-direction:column;height:100%}
.scene-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.scene-head i{font-size:22px;color:var(--brand-dark);width:44px;height:44px;border-radius:10px;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;background:var(--brand-soft);flex:0 0 44px}
.scene-head h3{font-size:18px}
.pill-row{display:flex;flex-wrap:wrap;gap:8px}
.scene-list{margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
.scene-list li{font-size:14px;color:var(--tl2);line-height:1.7;padding-left:16px;position:relative}
.scene-list li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--brand)}
/* ============ 流程步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.steps::before{content:"";position:absolute;top:26px;left:6%;right:6%;height:1px;background:var(--line);z-index:0}
.step{position:relative;z-index:1;padding:0 16px}
.step-num{
  width:52px;height:52px;border-radius:50%;background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-weight:700;font-size:15px;color:var(--brand-dark);margin-bottom:18px;
  transition:all .18s ease;
}
.step:hover .step-num{border-color:var(--brand);background:var(--brand-soft);transform:translateY(-2px)}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--tl2);line-height:1.7}
/* ============ 演示区 ============ */
.demo-wrap{position:relative;border-radius:var(--rc);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.demo-wrap img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.demo-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,17,19,.12),rgba(14,17,19,.55))}
.demo-badge{
  position:absolute;top:16px;left:16px;background:rgba(14,17,19,.72);color:var(--brand);
  font-family:var(--mono);font-size:12px;padding:6px 12px;border-radius:999px;border:1px solid rgba(18,214,160,.35);
}
.demo-list li{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--line)}
.demo-list li:last-child{border-bottom:none}
.demo-list i{font-size:18px;color:var(--brand-dark);margin-top:3px}
.demo-list .t{font-size:15.5px;font-weight:700;margin-bottom:4px}
.demo-list .d{font-size:14px;color:var(--tl2);line-height:1.7}
/* ============ 横向滚动轨道 ============ */
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:10px;margin:0 -4px;scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none}
.rail-item{flex:0 0 228px;scroll-snap-align:start;padding:0 4px}
.cover-card{
  background:var(--ink-3);border:1px solid rgba(18,214,160,.18);border-radius:var(--rc);
  overflow:hidden;height:100%;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.cover-card:hover{transform:translateY(-3px);border-color:rgba(18,214,160,.55);box-shadow:0 20px 40px -24px rgba(0,0,0,.8)}
.cover-media{position:relative;overflow:hidden}
.cover-media img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:0;transition:transform .3s ease}
.cover-card:hover .cover-media img{transform:scale(1.04)}
.cover-tag{
  position:absolute;top:10px;left:10px;background:var(--accent);color:#fff;
  font-size:11.5px;font-weight:600;padding:3px 10px;border-radius:999px;letter-spacing:.02em;
}
.cover-body{padding:14px 16px 18px}
.cover-body h3{font-size:15px;font-weight:700;color:var(--td);margin-bottom:6px}
.cover-body p{font-size:12.5px;color:var(--td2);line-height:1.6}
/* ============ 对比表 ============ */
.cmp-table{width:100%;border-collapse:separate;border-spacing:0;border-radius:var(--rc);overflow:hidden;border:1px solid var(--line);background:#fff}
.cmp-table th,.cmp-table td{padding:0 22px;height:52px;font-size:14.5px;vertical-align:middle;text-align:left}
.cmp-table thead th{background:var(--ink-2);color:#fff;font-weight:700;font-size:14px;border:none}
.cmp-table tbody tr:nth-child(even){background:rgba(20,24,26,.03)}
.cmp-table tbody tr+tr td{border-top:1px solid var(--line)}
.cmp-table td:first-child{color:var(--tl2);font-weight:500}
.cmp-table td:last-child{color:var(--tl);font-weight:600}
.cmp-table td:last-child i{color:var(--brand-dark);margin-right:8px}
/* ============ 证言 ============ */
.testi-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:start}
.testi-col{display:flex;flex-direction:column;gap:24px}
.testi-col.offset{padding-top:40px}
.testi-card{background:#fff;border:1px solid var(--line);border-radius:var(--rc);padding:26px;box-shadow:var(--shadow)}
.testi-card.lead-card{padding:32px}
.testi-quote{font-size:15.5px;line-height:1.85;color:var(--tl);margin-bottom:20px}
.testi-card.lead-card .testi-quote{font-size:16.5px}
.testi-user{display:flex;align-items:center;gap:12px}
.testi-avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 40px;
  background:linear-gradient(135deg,var(--brand),#0BA57B);color:#06251C;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
}
.testi-name{font-size:14.5px;font-weight:700}
.testi-role{font-size:12.5px;color:var(--tl2)}
/* ============ 人群标签 ============ */
.crowd-grid{display:flex;flex-wrap:wrap;gap:12px}
.crowd-grid .pill{font-size:13.5px;padding:9px 18px}
/* ============ 资讯列表 ============ */
.news-item{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:20px 0;border-bottom:1px solid var(--line);transition:all .18s ease;
}
.news-item:last-child{border-bottom:none}
.news-item:hover{padding-left:8px}
.news-main{flex:1 1 auto;min-width:0}
.news-title{font-size:16.5px;font-weight:700;margin-bottom:6px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.news-sum{font-size:14px;color:var(--tl2);line-height:1.7}
.news-date{font-family:var(--mono);font-size:12.5px;color:var(--tl2);flex:0 0 auto}
.news-arrow{flex:0 0 auto;color:var(--brand-dark);font-size:18px;transition:transform .18s ease}
.news-item:hover .news-arrow{transform:translateX(4px)}
/* ============ 数据面板 ============ */
.panel-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:end}
.bars{display:flex;align-items:flex-end;gap:18px;height:230px;padding:0 6px;border-bottom:1px solid var(--line-dark)}
.bar{flex:1 1 0;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:10px;height:100%}
.bar .col{
  width:100%;border-radius:8px 8px 0 0;
  background:linear-gradient(180deg,rgba(18,214,160,.85),rgba(18,214,160,.28));
  border:1px solid rgba(18,214,160,.4);border-bottom:none;
  transition:height .3s ease;
}
.bar.hot .col{background:linear-gradient(180deg,rgba(255,107,44,.95),rgba(255,107,44,.3));border-color:rgba(255,107,44,.55)}
.bar .bl{font-family:var(--mono);font-size:12px;color:var(--td2)}
.bar .bv{font-family:var(--mono);font-size:12.5px;color:var(--td)}
.metrics li{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px 0;border-bottom:1px solid var(--line-dark);font-size:14px}
.metrics li:last-child{border-bottom:none}
.metrics .m-k{color:var(--td2)}
.metrics .m-v{font-family:var(--mono);color:#fff;font-weight:700}
.metrics .m-v.brand{color:var(--brand)}
.metrics .m-v.accent{color:var(--accent)}
/* ============ FAQ ============ */
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:var(--rc)!important;margin-bottom:12px;
  background:#fff;overflow:hidden;
}
.faq-acc .accordion-button{
  min-height:56px;font-size:16px;font-weight:700;color:var(--tl);background:#fff;
  padding:16px 22px;box-shadow:none!important;border-radius:var(--rc)!important;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--tl);background:#fff}
.faq-acc .accordion-button::after{
  background-image:none;content:"+";font-size:22px;font-weight:400;color:var(--brand-dark);
  width:auto;height:auto;line-height:1;transform:none;transition:transform .2s ease;margin-left:auto;
}
.faq-acc .accordion-button:not(.collapsed)::after{content:"−";transform:none}
.faq-acc .accordion-body{
  padding:0 22px 22px 22px;font-size:14.5px;line-height:1.8;color:var(--tl2);
  border-left:3px solid var(--brand);margin-left:22px;padding-left:18px;
}
/* ============ 底部 CTA ============ */
.cta-band{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding:70px 0}
.cta-band .cta-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-4.jpg');background-size:cover;background-position:center;opacity:.28}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(14,17,19,.95),rgba(14,17,19,.72))}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);color:#fff;margin-bottom:10px}
.cta-inner p{font-size:14.5px;color:var(--td2);max-width:60ch}
/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--td2);padding:64px 0 0;border-top:1px solid var(--line-dark)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:14px}
.footer-slogan{font-size:14px;line-height:1.8;color:var(--td2);max-width:34ch}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--td2);transition:color .18s ease}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding:22px 0;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:var(--td2);
}
/* ============ 响应式 ============ */
@media (min-width:992px){
  .navbar-expand-lg .nav-collapse{display:flex!important}
}
@media (max-width:1199.98px){
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .steps::before{display:none}
  .panel-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:991.98px){
  .section{padding:64px 0}
  .hero{padding:56px 0 64px}
  .nav-collapse{
    display:none;flex-direction:column;align-items:stretch;gap:6px;
    padding:14px 0 18px;border-top:1px solid var(--line-dark);margin-top:12px;
  }
  .nav-collapse.show{display:flex}
  .nav-links{flex-direction:column;align-items:stretch;gap:2px;width:100%}
  .nav-links .nav-link{padding:11px 12px;font-size:15px}
  .nav-cta{width:100%;margin-top:8px;text-align:center;justify-content:center}
  .nav-inner{flex-wrap:wrap;height:auto;padding:12px 0}
  .brand{order:1}
  .navbar-toggler{order:2}
  .nav-collapse{order:3;width:100%}
  .testi-grid{grid-template-columns:1fr}
  .testi-col.offset{padding-top:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cmp-table th,.cmp-table td{padding:0 14px;font-size:13.5px;height:auto;min-height:52px;padding-top:14px;padding-bottom:14px}
}
@media (max-width:575.98px){
  .section{padding:48px 0}
  .section-tight{padding:44px 0}
  .container-xxl{padding-left:16px;padding-right:16px}
  .stats-grid{grid-template-columns:1fr;gap:22px}
  .steps{grid-template-columns:1fr;gap:26px}
  .step{padding-left:56px;position:relative}
  .step-num{position:absolute;left:0;top:0;width:40px;height:40px;font-size:13px;margin:0}
  .footer-grid{grid-template-columns:1fr}
  .rail-item{flex:0 0 190px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .btn,.btn-accent,.btn-ghost-dark,.btn-ghost-light{width:100%;text-align:center;justify-content:center}
  .hero-actions{flex-direction:column;align-items:stretch;width:100%}
  .hero-meta{gap:16px}
  .news-item{flex-direction:column;align-items:flex-start;gap:8px}
  .news-arrow{display:none}
  .cmp-table{font-size:13px}
  .cmp-table td:first-child{width:38%}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
 --brand:#12D6A0;
 --brand-dark:#0BA57B;
 --brand-soft:rgba(18,214,160,.10);
 --accent:#FF6B2C;
 --accent-dark:#E85A1D;
 --ink:#0E1113;
 --ink-2:#12161A;
 --ink-3:#171C20;
 --light:#F5F7F6;
 --card:#FFFFFF;
 --line:#E3E8E6;
 --line-dark:rgba(255,255,255,.08);
 --td:#EAF2EF;
 --td2:#9FB0AA;
 --tl:#14181A;
 --tl2:#5C6B66;
 --rc:14px;
 --ri:12px;
 --rb:8px;
 --shadow:0 1px 2px rgba(14,17,19,.06),0 14px 34px -20px rgba(14,17,19,.28);
 --shadow-h:0 2px 4px rgba(14,17,19,.08),0 22px 46px -22px rgba(14,17,19,.34);
 --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
 --bs-primary:#12D6A0;
 --bs-primary-rgb:18,214,160;
 --bs-body-color:#14181A;
 --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
 --bs-border-radius:14px;
 --bs-border-radius-sm:8px;
 --bs-link-color:#0BA57B;
 --bs-link-hover-color:#0BA57B;
 --bs-border-color:#E3E8E6;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
 font-size:16px;
 line-height:1.75;
 color:var(--tl);
 background:#fff;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--ri)}
a{text-decoration:none;color:inherit;transition:color .18s ease}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container-xxl{max-width:1280px;padding-left:20px;padding-right:20px;margin:0 auto;width:100%}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ============ 顶部导航 ============ */
.site-header{
 position:sticky;top:0;z-index:1030;
 background:rgba(14,17,19,.94);
 backdrop-filter:blur(10px);
 border-bottom:1px solid var(--line-dark);
}
.site-header .nav-inner{
 height:64px;display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;letter-spacing:.02em}
.brand:hover{color:#fff}
.brand-mark{width:30px;height:30px;flex:0 0 30px;border-radius:0}
.brand-text{white-space:nowrap}
.nav-collapse{display:flex;align-items:center;gap:22px;flex:1 1 auto;justify-content:flex-end}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links .nav-link{
 color:var(--td2);font-size:14.5px;font-weight:500;padding:8px 12px;border-radius:var(--rb);
 transition:color .18s ease,background-color .18s ease;
}
.nav-links .nav-link:hover{color:var(--td);background:rgba(255,255,255,.05)}
.nav-links .nav-link.active{color:var(--brand);background:var(--brand-soft)}
.nav-cta{--bs-btn-padding-y:.45rem;--bs-btn-padding-x:1.05rem;--bs-btn-font-size:14px}
.navbar-toggler{
 border:1px solid var(--line-dark);padding:6px 10px;border-radius:var(--rb);
 background:transparent;color:var(--td);line-height:1;display:none;
}
.navbar-toggler:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:2px}
.navbar-toggler i{font-size:20px;vertical-align:middle}

/* ============ 按钮 ============ */
.btn{border-radius:var(--rb)!important;font-weight:600;transition:all .18s ease;border-width:1px;box-shadow:none!important}
.btn-accent{
 background:var(--accent);border-color:var(--accent);color:#fff;
 padding:.7rem 1.5rem;font-size:15px;
}
.btn-accent:hover,.btn-accent:focus{
 background:var(--accent-dark);border-color:var(--accent-dark);color:#fff;
 transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(255,107,44,.85)!important;
}
.btn-accent:active{transform:translateY(0)}
.btn-ghost-light{
 background:transparent;border:1px solid #CFD8D5;color:var(--tl);
 padding:.7rem 1.5rem;font-size:15px;
}
.btn-ghost-light:hover{color:var(--brand-dark);border-color:var(--brand);background:var(--brand-soft)}
.btn-more{
 display:inline-flex;align-items:center;gap:8px;
 background:#fff;border:1px solid var(--line);color:var(--tl);
 padding:.72rem 1.9rem;font-size:15px;border-radius:var(--rb);
}
.btn-more:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-soft);transform:translateY(-1px)}
.btn-more i{transition:transform .18s ease}
.btn-more:hover i{transform:translateX(4px)}

/* ============ 通用板块 ============ */
.section{padding:88px 0;position:relative}
.section-tight{padding:52px 0}
.section-light{background:var(--light)}
.section-dark{background:var(--ink-2);color:var(--td)}
.section-dark .sec-sub{color:var(--td2)}
.sec-head{margin-bottom:34px;max-width:780px}
.sec-num{
 display:block;font-family:var(--mono);font-size:12.5px;letter-spacing:.16em;
 color:var(--brand-dark);margin-bottom:10px;
}
.section-dark .sec-num{color:var(--brand)}
.sec-title{font-size:clamp(22px,2.6vw,34px);font-weight:800;margin-bottom:12px}
.sec-title .hl{color:var(--brand-dark)}
.section-dark .sec-title .hl{color:var(--brand)}
.sec-sub{font-size:15px;color:var(--tl2)}

/* ============ 标签 / pill ============ */
.pill{
 display:inline-flex;align-items:center;gap:6px;
 padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:500;
 background:#EEF3F1;color:var(--tl2);border:1px solid transparent;
 transition:all .18s ease;
}
.pill-brand{background:var(--brand-soft);color:var(--brand-dark);border-color:rgba(18,214,160,.42)}

/* ============ 分类页头 ============ */
.cat-hero{
 background:var(--light);
 border-bottom:1px solid var(--line);
 padding:56px 0 52px;
 position:relative;
 overflow:hidden;
}
.cat-hero::before{
 content:"";position:absolute;inset:0;pointer-events:none;
 background-image:
  linear-gradient(rgba(14,17,19,.05) 1px,transparent 1px),
  linear-gradient(90deg,rgba(14,17,19,.05) 1px,transparent 1px);
 background-size:52px 52px;
 opacity:.55;
}
.cat-hero::after{
 content:"";position:absolute;left:0;top:0;width:96px;height:3px;
 background:linear-gradient(90deg,var(--brand),rgba(18,214,160,0));
}
.cat-hero-grid{
 position:relative;z-index:1;
 display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);
 gap:44px;align-items:end;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--tl2);margin-bottom:18px}
.crumb a{color:var(--tl2)}
.crumb a:hover{color:var(--brand-dark)}
.crumb i{font-size:10px;opacity:.55}
.cat-hero h1{
 font-size:clamp(26px,3.4vw,44px);
 font-weight:800;
 letter-spacing:-.01em;
 margin-bottom:16px;
}
.cat-hero h1 .kw{color:var(--brand-dark)}
.cat-lead{font-size:15.5px;color:var(--tl2);max-width:62ch;line-height:1.8}
.cat-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.stat-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--rc);
 box-shadow:var(--shadow);padding:22px 24px;
}
.stat-card-head{
 font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--tl2);
 padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:16px;
}
.stat-item{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:6px 0}
.stat-label{font-size:14px;color:var(--tl2)}
.stat-value{font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:700;font-size:20px;color:var(--tl)}
.stat-value.brand{color:var(--brand-dark)}
.stat-value .unit{font-size:12.5px;font-weight:500;color:var(--tl2);margin-left:3px}

/* ============ 分类入口 chip ============ */
.chip-block{background:#fff}
.chip-row{
 display:flex;gap:10px;overflow-x:auto;padding:4px 0 12px;
 scroll-snap-type:x proximity;scrollbar-width:none;-ms-overflow-style:none;
}
.chip-row::-webkit-scrollbar{display:none}
.chip{
 flex:0 0 auto;scroll-snap-align:start;
 padding:9px 18px;border-radius:999px;border:1px solid var(--line);
 background:#fff;font-size:13.5px;color:var(--tl2);white-space:nowrap;
 transition:all .18s ease;
}
a.chip:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-soft)}
.chip.is-current{
 border-color:var(--brand);background:var(--brand-soft);
 color:var(--brand-dark);font-weight:600;
}

/* ============ 筛选条 ============ */
.filter-section{padding:0 0 8px;background:#fff}
.filter-bar{
 display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
 padding:14px 20px;border:1px solid var(--line);border-radius:var(--rc);
 background:#fff;
}
.filter-left,.filter-right{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.filter-label{font-size:13.5px;color:var(--tl2);margin-right:2px}
.sort-btn{
 padding:.42rem 1rem;font-size:13.5px;border:1px solid var(--line);
 background:#fff;color:var(--tl2);border-radius:var(--rb);
}
.sort-btn:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-soft)}
.sort-btn.active{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-dark);font-weight:600}
.filter-select{
 display:inline-flex;align-items:center;gap:8px;
 padding:.42rem 1rem;font-size:13.5px;border:1px solid var(--line);
 background:#fff;color:var(--tl);border-radius:var(--rb);
}
.filter-select:hover,.filter-select.show{border-color:var(--brand);color:var(--brand-dark)}
.filter-select::after{display:none}
.filter-select i{font-size:11px;opacity:.7}
.dropdown-menu{
 border:1px solid var(--line);border-radius:var(--rb);box-shadow:var(--shadow);
 padding:6px;font-size:13.5px;min-width:150px;
}
.dropdown-item{border-radius:6px;padding:7px 12px;color:var(--tl2)}
.dropdown-item:hover,.dropdown-item:focus{background:var(--brand-soft);color:var(--brand-dark)}

/* ============ 列表卡片 ============ */
.line-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.line-card{
 background:var(--card);border:1px solid var(--line);border-radius:var(--rc);
 overflow:hidden;height:100%;display:flex;flex-direction:column;
 box-shadow:var(--shadow);
 transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.line-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-h);border-color:rgba(18,214,160,.5)}
.line-cover{position:relative;background:#0E1113}
.line-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.line-cover::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(14,17,19,.32) 0%,rgba(14,17,19,0) 55%);
 pointer-events:none;
}
.cover-badge{
 position:absolute;left:12px;top:12px;z-index:2;
 font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;
 padding:3px 10px;border-radius:999px;
 background:rgba(14,17,19,.72);color:var(--brand);border:1px solid rgba(18,214,160,.4);
}
.cover-time{
 position:absolute;right:12px;bottom:12px;z-index:2;
 font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:11.5px;
 padding:3px 9px;border-radius:6px;
 background:rgba(14,17,19,.74);color:var(--td);
}
.line-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.line-body h3{font-size:17px;font-weight:700;margin-bottom:10px;line-height:1.45}
.meta-row{
 display:flex;align-items:center;flex-wrap:wrap;gap:8px;
 font-size:12.5px;color:var(--tl2);font-family:var(--mono);
 font-variant-numeric:tabular-nums;margin-bottom:12px;
}
.meta-row span{position:relative}
.meta-row span + span::before{
 content:"";display:inline-block;width:3px;height:3px;border-radius:50%;
 background:var(--line);margin-right:8px;vertical-align:middle;
}
.line-note{font-size:13.5px;color:var(--tl2);line-height:1.7;border-top:1px dashed var(--line);padding-top:12px;margin-top:auto}
.grid-foot{display:flex;justify-content:center;margin-top:38px}

/* ============ 精选专题 ============ */
.feature-list{display:grid;gap:22px}
.feature-card{
 display:grid;grid-template-columns:minmax(0,300px) minmax(0,1fr);
 background:#fff;border:1px solid var(--line);border-radius:var(--rc);
 overflow:hidden;box-shadow:var(--shadow);
 transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-h);border-color:rgba(18,214,160,.5)}
.feature-figure{position:relative;min-height:210px}
.feature-figure img{width:100%;height:100%;object-fit:cover;border-radius:0}
.feature-figure::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(90deg,rgba(14,17,19,.34),rgba(14,17,19,.05));
}
.feature-body{padding:26px 28px;display:flex;flex-direction:column;justify-content:center}
.feature-body .tag{
 font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;
 color:var(--brand-dark);margin-bottom:10px;display:block;
}
.feature-body h3{font-size:20px;margin-bottom:10px}
.feature-body p{font-size:14.5px;color:var(--tl2);line-height:1.75;margin-bottom:14px}
.feature-link{
 display:inline-flex;align-items:center;gap:6px;
 font-size:14px;font-weight:600;color:var(--brand-dark);
}
.feature-link i{transition:transform .18s ease}
.feature-link:hover i{transform:translateX(4px)}

/* ============ 数据指标条 ============ */
.metric-band{background:var(--ink-2);padding:56px 0;border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark)}
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.metric-item{border-left:1px solid rgba(255,255,255,.10);padding-left:20px}
.metric-item:first-child{border-left:0;padding-left:0}
.metric-num{
 font-family:var(--mono);font-variant-numeric:tabular-nums;
 font-size:clamp(26px,3vw,38px);font-weight:800;color:var(--brand);line-height:1.15;
}
.metric-num.accent{color:var(--accent)}
.metric-num .unit{font-size:14px;font-weight:500;color:var(--td2);margin-left:4px}
.metric-label{font-size:13.5px;color:var(--td2);margin-top:8px}
.metric-desc{font-size:12.5px;color:rgba(159,176,170,.72);margin-top:4px}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.accordion-item{
 position:relative;background:#fff;border:1px solid var(--line);
 border-radius:var(--rc);margin-bottom:12px;overflow:hidden;
}
.accordion-item::before{
 content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
 background:var(--brand);border-radius:2px;opacity:0;transition:opacity .18s ease;
}
.accordion-item:has(.accordion-button:not(.collapsed))::before{opacity:1}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(18,214,160,.45)}
.accordion-button{
 font-size:16px;font-weight:700;color:var(--tl);background:#fff;
 padding:18px 22px;min-height:56px;box-shadow:none!important;border-radius:0!important;
}
.accordion-button:not(.collapsed){color:var(--brand-dark);background:var(--brand-soft)}
.accordion-button::after{
 content:"";width:19px;height:19px;flex:0 0 19px;margin-left:auto;
 border:1px solid currentColor;border-radius:50%;opacity:.75;
 background-image:linear-gradient(currentColor,currentColor),linear-gradient(currentColor,currentColor);
 background-size:11px 1.5px,1.5px 11px;
 background-position:center,center;background-repeat:no-repeat;
 transform:none;transition:background-size .2s ease;
}
.accordion-button:not(.collapsed)::after{
 background-size:11px 1.5px,0 0;transform:none;
}
.accordion-body{
 padding:2px 22px 20px;font-size:14.5px;color:var(--tl2);line-height:1.8;
}

/* ============ CTA 条 ============ */
.cta-band{background:var(--ink);padding:64px 0;position:relative;overflow:hidden}
.cta-band::before{
 content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
 background-image:
  linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
  linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
 background-size:56px 56px;
}
.cta-inner{
 position:relative;z-index:1;
 display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-copy h2{font-size:clamp(21px,2.4vw,30px);color:#fff;margin-bottom:10px}
.cta-copy p{font-size:14.5px;color:var(--td2);max-width:56ch}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--td2);padding:64px 0 28px;border-top:1px solid var(--line-dark)}
.footer-grid{
 display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
 gap:36px;padding-bottom:38px;border-bottom:1px solid var(--line-dark);
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:14px}
.footer-brand:hover{color:#fff}
.footer-slogan{font-size:13.5px;line-height:1.8;color:var(--td2);max-width:38ch}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;font-weight:700}
.footer-col li{margin-bottom:9px}
.footer-col a{font-size:13.5px;color:var(--td2)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
 display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
 padding-top:24px;font-size:12.5px;color:rgba(159,176,170,.75);
}
.footer-bottom a{color:rgba(159,176,170,.85)}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
 .line-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .cat-hero-grid{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:32px}
}
@media (max-width:991.98px){
 .navbar-toggler{display:inline-flex;align-items:center;justify-content:center}
 .nav-collapse{
  position:absolute;top:64px;left:0;right:0;
  display:none;flex-direction:column;align-items:stretch;gap:6px;
  background:rgba(14,17,19,.98);border-bottom:1px solid var(--line-dark);
  padding:14px 20px 20px;
 }
 .nav-collapse.open{display:flex}
 .nav-links{flex-direction:column;align-items:stretch;gap:2px}
 .nav-links .nav-link{padding:10px 12px}
 .nav-cta{width:100%;text-align:center;margin-top:8px}
 .section{padding:64px 0}
 .cat-hero{padding:44px 0 40px}
 .cat-hero-grid{grid-template-columns:minmax(0,1fr);gap:26px}
 .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 20px}
 .metric-item:nth-child(odd){border-left:0;padding-left:0}
 .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
 .feature-card{grid-template-columns:minmax(0,240px) minmax(0,1fr)}
}
@media (max-width:767.98px){
 .line-grid{grid-template-columns:minmax(0,1fr)}
 .feature-card{grid-template-columns:minmax(0,1fr)}
 .feature-figure{min-height:180px;aspect-ratio:16/9}
 .filter-bar{flex-direction:column;align-items:stretch}
 .filter-left,.filter-right{justify-content:flex-start}
 .cta-inner{flex-direction:column;align-items:flex-start;gap:22px}
 .cta-band{padding:52px 0}
}
@media (max-width:575.98px){
 .container-xxl{padding-left:16px;padding-right:16px}
 .section{padding:48px 0}
 .cat-hero h1{font-size:clamp(22px,7vw,30px)}
 .metric-grid{grid-template-columns:minmax(0,1fr)}
 .metric-item{border-left:0;padding-left:0}
 .footer-grid{grid-template-columns:minmax(0,1fr)}
 .stat-card{padding:18px 18px}
 .line-body{padding:18px}
 .accordion-button{font-size:15px;padding:16px 18px}
 .accordion-body{padding:2px 18px 18px}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}