/* roulang page: index */
:root{
  --ink:#0C3B2E;
  --ink-deep:#072A21;
  --lime:#C8F03C;
  --orange:#F26B3A;
  --paper:#F6F5F0;
  --card:#FFFFFF;
  --text:#1B2621;
  --muted:#55635C;
  --faint:#8A968F;
  --line:#E2E0D6;
  --r-card:18px;
  --r-img:14px;
  --r-btn:10px;
  --shadow-card:0 0 0 1px #E2E0D6, 0 10px 30px rgba(12,59,46,.06);
  --shadow-hover:0 0 0 1px #C8F03C, 0 16px 36px rgba(12,59,46,.12);
  --font: system-ui, -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto;}}
body{
  margin:0;padding:0;
  font-family:var(--font);
  font-size:16px;line-height:1.85;
  color:var(--text);background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease,border-color .18s ease,background .18s ease;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.3;}
h1{line-height:1.18;font-weight:800;}
h3{font-size:21px;line-height:1.5;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{margin:0 0 20px;}
ul,ol{margin:0 0 20px;padding-left:1.4em;}
li{margin-bottom:8px;line-height:1.85;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
::selection{background:var(--lime);color:var(--ink-deep);}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px;}}

/* ---------- 顶部导航 ---------- */
.site-nav{position:sticky;top:0;z-index:60;background:var(--paper);border-bottom:1px solid var(--line);transition:box-shadow .2s ease;}
.site-nav.is-scrolled{box-shadow:0 6px 22px rgba(12,59,46,.08);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:9px;font-size:20px;font-weight:800;letter-spacing:.01em;color:var(--ink);white-space:nowrap;}
.brand:hover{color:var(--ink-deep);}
.brand-dot{width:10px;height:10px;border-radius:3px;background:var(--lime);display:inline-block;flex:0 0 auto;}
.nav-links{display:none;align-items:center;gap:2px;}
@media (min-width:1024px){.nav-links{display:flex;}}
.nav-links a{position:relative;display:inline-block;padding:24px 13px;font-size:15px;font-weight:500;color:var(--muted);white-space:nowrap;}
.nav-links a::after{content:"";position:absolute;left:13px;right:13px;bottom:15px;height:3px;border-radius:2px;background:transparent;transition:background .18s ease;}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{background:rgba(200,240,60,.6);}
.nav-links a.active{color:var(--ink);font-weight:600;}
.nav-links a.active::after{background:var(--lime);}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-cta{display:none;}
@media (min-width:768px){.nav-cta{display:inline-flex;}}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;transition:background .18s ease,border-color .18s ease;}
.nav-toggle:hover{background:rgba(200,240,60,.18);border-color:var(--lime);}
@media (min-width:1024px){.nav-toggle{display:none;}}
.nav-drawer{position:fixed;top:72px;left:0;right:0;bottom:0;z-index:59;background:var(--paper);border-top:1px solid var(--line);padding:20px 20px 40px;overflow-y:auto;opacity:0;visibility:hidden;transform:translateY(-12px);transition:opacity .2s ease,transform .2s ease,visibility .2s ease;}
.nav-drawer.open{opacity:1;visibility:visible;transform:translateY(0);}
.nav-drawer a{display:block;padding:14px 4px;font-size:16px;font-weight:500;color:var(--muted);border-bottom:1px solid var(--line);}
.nav-drawer a:hover{color:var(--ink);}
.nav-drawer a.active{color:var(--ink);font-weight:700;box-shadow:inset 3px 0 0 var(--lime);padding-left:12px;}
.nav-drawer .btn{margin-top:24px;width:100%;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:var(--r-btn);border:1.5px solid transparent;font-size:16px;font-weight:600;line-height:1;cursor:pointer;text-align:center;transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{background:var(--ink-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(12,59,46,.22);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-outline:hover{background:rgba(200,240,60,.2);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 20px;font-size:15px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);border-bottom:2px solid var(--lime);padding-bottom:2px;}
.link-arrow:hover{color:var(--ink-deep);border-bottom-color:var(--ink-deep);}

/* ---------- 首屏 ---------- */
.hero{padding:44px 0 52px;}
@media (min-width:1024px){.hero{padding:76px 0 92px;}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:56px;}}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:13px;font-weight:500;color:var(--muted);letter-spacing:.02em;margin-bottom:20px;}
.hero-tag i{width:7px;height:7px;border-radius:999px;background:var(--lime);display:inline-block;}
.hero h1{font-size:clamp(30px,4.2vw,52px);line-height:1.18;font-weight:800;letter-spacing:-.01em;color:var(--ink-deep);}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:var(--muted);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
@media (max-width:639px){.hero-actions .btn{width:100%;}}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.pill{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 14px;font-size:12.5px;font-weight:500;color:var(--muted);letter-spacing:.02em;}
.pill-em{background:var(--lime);border-color:var(--lime);color:var(--ink-deep);font-weight:600;}
.hero-visual{position:relative;}
.hero-img-wrap{position:relative;border-radius:var(--r-card);overflow:hidden;background:#EDEBE3;aspect-ratio:4/3;box-shadow:0 0 0 1px var(--line),0 18px 40px rgba(12,59,46,.10);}
.hero-img-wrap img{width:100%;height:100%;object-fit:cover;}
.hero-float{position:absolute;right:12px;top:12px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 16px;box-shadow:0 12px 30px rgba(12,59,46,.16);}
.hero-float-num{display:block;font-size:26px;font-weight:800;line-height:1.1;color:var(--ink);font-variant-numeric:tabular-nums;}
.hero-float-label{font-size:12px;color:var(--muted);letter-spacing:.02em;}

/* 过渡色带 */
.color-band{height:24px;background:var(--lime);}

/* ---------- 指标看板带 ---------- */
.kpi-band{background:var(--ink);padding:44px 0;}
@media (min-width:1024px){.kpi-band{padding:64px 0;}}
.kpi-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:28px;}
.kpi-head h2{color:var(--paper);font-size:26px;font-weight:700;}
.kpi-head p{margin:8px 0 0;color:#C8D6CE;font-size:14px;max-width:620px;}
.kpi-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
@media (min-width:768px){.kpi-grid{grid-template-columns:repeat(4,1fr);gap:20px;}}
.kpi-card{background:transparent;border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);padding:18px;}
@media (min-width:1024px){.kpi-card{padding:22px;}}
.kpi-num{display:flex;align-items:baseline;gap:4px;font-size:clamp(34px,4vw,40px);font-weight:800;line-height:1.1;color:var(--paper);font-variant-numeric:tabular-nums;}
.kpi-unit{font-size:13px;font-weight:600;color:var(--lime);}
.kpi-label{font-size:13px;color:#C8D6CE;margin-top:8px;letter-spacing:.02em;}
.kpi-trend{display:inline-flex;align-items:center;gap:4px;margin-top:10px;font-size:12px;font-weight:600;}
.kpi-trend.up{color:var(--lime);}
.kpi-trend.down{color:var(--orange);}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:88px 0;}}
.section-alt{background:#fff;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:32px;}
.section-title{font-size:30px;font-weight:700;color:var(--ink-deep);}
.section-desc{margin-top:10px;font-size:15px;line-height:1.8;color:var(--muted);max-width:660px;}

/* ---------- 服务矩阵 ---------- */
.matrix{display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:768px){.matrix{grid-template-columns:repeat(12,1fr);gap:24px;}}
.matrix-main{position:relative;display:flex;align-items:flex-end;min-height:320px;padding:26px;border-radius:var(--r-card);overflow:hidden;color:#fff;}
@media (min-width:768px){.matrix-main{grid-column:span 6;grid-row:span 2;}}
.matrix-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;transition:transform .3s ease;}
.matrix-main:hover img{transform:scale(1.03);}
.matrix-main::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(7,42,33,.30) 0%,rgba(7,42,33,.92) 100%);}
.matrix-main-inner{position:relative;z-index:2;}
.matrix-main h3{color:#fff;font-size:24px;font-weight:700;}
.matrix-main ul{list-style:none;margin:14px 0 18px;padding:0;}
.matrix-main li{font-size:14px;line-height:1.75;color:#DCE9E2;margin-bottom:6px;padding-left:16px;position:relative;}
.matrix-main li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;background:var(--lime);}
.matrix-main .link-arrow{color:#fff;border-bottom-color:var(--lime);}
.matrix-main .link-arrow:hover{color:var(--lime);}
.matrix-sub{display:flex;flex-direction:column;justify-content:space-between;min-height:172px;padding:22px;background:#fff;border-radius:var(--r-card);box-shadow:var(--shadow-card);transition:transform .18s ease,box-shadow .18s ease;}
.matrix-sub:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
@media (min-width:768px){.matrix-sub{grid-column:span 3;}}
.matrix-icon{width:40px;height:40px;border-radius:12px;background:rgba(200,240,60,.18);color:var(--ink);display:flex;align-items:center;justify-content:center;margin-bottom:14px;}
.matrix-sub h4{font-size:17px;font-weight:600;color:var(--text);}
.matrix-sub p{margin:8px 0 16px;font-size:14px;line-height:1.75;color:var(--muted);}
.matrix-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;font-weight:600;color:var(--ink);}
.matrix-foot svg{transition:transform .18s ease;}
.matrix-sub:hover .matrix-foot svg{transform:translateX(4px);}

/* ---------- 结果对比 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:768px){.compare-grid{grid-template-columns:1fr 1fr;gap:24px;}}
.compare-card{border-radius:var(--r-card);padding:24px;}
@media (min-width:1024px){.compare-card{padding:28px;}}
.compare-card.before{background:#EFEDE6;color:#8A968F;}
.compare-card.after{background:#fff;border-left:4px solid var(--lime);box-shadow:var(--shadow-card);}
.compare-card h3{font-size:19px;font-weight:700;margin-bottom:6px;}
.compare-card.before h3{color:#5C6A63;}
.compare-card.after h3{color:var(--ink-deep);}
.compare-note{font-size:13px;margin-bottom:22px;letter-spacing:.02em;}
.compare-card.before .compare-note{color:#8A968F;}
.compare-card.after .compare-note{color:var(--muted);}
.bar-row{margin-bottom:18px;}
.bar-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:15px;}
.compare-card.before .bar-top{color:#6E7B74;}
.bar-value{font-weight:600;font-variant-numeric:tabular-nums;}
.bar{height:10px;border-radius:999px;background:#E2E0D6;overflow:hidden;margin-top:8px;}
.bar span{display:block;height:100%;border-radius:999px;}
.compare-card.before .bar span{background:#B9C2BB;}
.compare-card.after .bar span{background:linear-gradient(90deg,#0C3B2E 0%,#C8F03C 100%);}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:1fr;gap:22px;}
@media (min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}
.news-card{display:flex;flex-direction:column;background:#fff;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .18s ease,box-shadow .18s ease;}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.news-media{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:#EDEBE3;}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.news-card:hover .news-media img{transform:scale(1.03);}
.news-badge{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.92);color:var(--ink);font-size:12px;font-weight:600;letter-spacing:.02em;padding:4px 11px;border-radius:999px;}
.news-body{display:flex;flex-direction:column;flex:1;padding:20px;}
.news-title{font-size:18px;font-weight:600;line-height:1.5;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a{color:inherit;}
.news-title a:hover{color:var(--ink);}
.news-excerpt{margin:10px 0 0;font-size:14px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:16px;font-size:13px;color:var(--faint);}
.news-more{font-weight:600;color:var(--ink);}
.news-more:hover{color:var(--ink-deep);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--lime);text-decoration-thickness:2px;}
.empty-state{border:1px dashed var(--line);border-radius:var(--r-card);padding:48px 24px;text-align:center;background:#fff;grid-column:1/-1;}
.empty-state svg{color:var(--faint);margin-bottom:14px;}
.empty-state p{margin:0 0 18px;font-size:15px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{display:flex;align-items:center;gap:14px;width:100%;padding:18px 0;background:none;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--text);cursor:pointer;transition:color .18s ease;}
.faq-q:hover{color:var(--ink);}
.faq-idx{flex:0 0 auto;width:26px;height:26px;border-radius:6px;background:var(--lime);color:var(--ink-deep);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;}
.faq-ic{flex:0 0 auto;margin-left:auto;color:var(--ink);transition:transform .18s ease;}
.faq-item.open .faq-ic{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;}
.faq-item.open .faq-a{max-height:420px;}
.faq-a-inner{padding:0 0 18px 40px;font-size:15px;line-height:1.8;color:var(--muted);max-width:720px;}

/* ---------- 转化表单 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr;gap:22px;}
@media (min-width:1024px){.contact-grid{grid-template-columns:2fr 1fr;gap:32px;}}
.form-card{background:#fff;border-radius:var(--r-card);box-shadow:var(--shadow-card);padding:24px;}
@media (min-width:1024px){.form-card{padding:32px;}}
.form-row{display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:640px){.form-row{grid-template-columns:1fr 1fr;}}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:8px;letter-spacing:.02em;}
.req{color:var(--orange);}
.field input,.field select,.field textarea{width:100%;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--paper);font-family:inherit;font-size:15px;color:var(--text);transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;appearance:none;}
.field select{background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2355635C' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:40px;}
.field textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.75;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--ink);background:#fff;box-shadow:0 0 0 3px rgba(200,240,60,.3);}
.form-submit{width:100%;margin-top:4px;}
@media (min-width:1024px){.form-submit{width:220px;}}
.form-note{margin:14px 0 0;font-size:13px;line-height:1.7;color:var(--faint);}
.form-tip{margin-top:14px;font-size:14px;font-weight:600;color:var(--ink);display:none;}
.form-tip.show{display:block;}
.contact-aside{background:rgba(200,240,60,.08);border:1px solid rgba(200,240,60,.4);border-radius:var(--r-card);padding:24px;}
.contact-aside h3{font-size:18px;color:var(--ink-deep);margin-bottom:18px;}
.info-item{padding:14px 0;border-bottom:1px solid rgba(12,59,46,.1);}
.info-item:last-child{border-bottom:0;padding-bottom:0;}
.info-label{font-size:12.5px;font-weight:600;letter-spacing:.04em;color:var(--muted);}
.info-value{margin-top:4px;font-size:15px;line-height:1.7;color:var(--ink-deep);font-weight:500;word-break:break-all;}
.info-value a{color:var(--ink-deep);border-bottom:2px solid var(--lime);}
.info-value a:hover{border-bottom-color:var(--ink-deep);}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink-deep);color:#C8D6CE;padding:56px 0 24px;margin-top:32px;}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:640px){.foot-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:40px;}}
.foot-brand{display:inline-flex;align-items:center;gap:9px;font-size:20px;font-weight:800;color:var(--paper);letter-spacing:.01em;}
.foot-brand:hover{color:var(--lime);}
.foot-desc{margin:14px 0 0;font-size:14px;line-height:1.8;color:#A9BDB3;max-width:340px;}
.foot-title{font-size:14px;font-weight:600;color:var(--lime);letter-spacing:.04em;margin-bottom:16px;}
.foot-col ul{list-style:none;margin:0;padding:0;}
.foot-col li{margin-bottom:10px;}
.foot-col a{font-size:15px;color:#C8D6CE;line-height:1.7;}
.foot-col a:hover{color:var(--paper);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.foot-col p{font-size:15px;line-height:1.8;color:#C8D6CE;margin:0 0 10px;word-break:break-all;}
.foot-col p a{font-size:15px;}
@media (max-width:639px){.foot-col{grid-column:1/-1;}}
.foot-bottom{margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8FA69B;}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{position:fixed;left:0;right:0;bottom:0;z-index:70;display:flex;background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 22px rgba(12,59,46,.07);padding-bottom:env(safe-area-inset-bottom);}
.mobile-tab a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;height:58px;font-size:11px;font-weight:500;color:var(--faint);letter-spacing:.02em;transition:color .18s ease;}
.mobile-tab .tab-ic{display:flex;align-items:center;justify-content:center;height:30px;padding:0 14px;border-radius:999px;transition:background .18s ease;}
.mobile-tab a.active{color:var(--ink);font-weight:600;}
.mobile-tab a.active .tab-ic{background:var(--lime);}
.mobile-tab a:hover{color:var(--ink);}
@media (min-width:1024px){.mobile-tab{display:none;}}
@media (max-width:1023px){body{padding-bottom:calc(72px + env(safe-area-inset-bottom));}}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .matrix-main:hover img,.news-card:hover .news-media img{transform:none;}
}

/* roulang page: article */
:root{
  --ink:#0C3B2E;
  --ink-deep:#072A21;
  --lime:#C8F03C;
  --orange:#F26B3A;
  --paper:#F6F5F0;
  --card:#FFFFFF;
  --text:#1B2621;
  --muted:#55635C;
  --weak:#8A968F;
  --line:#E2E0D6;
  --r-card:18px;
  --r-img:14px;
  --r-btn:10px;
  --shadow-card:0 0 0 1px #E2E0D6, 0 10px 30px rgba(12,59,46,.06);
  --shadow-hover:0 0 0 1px #C8F03C, 0 16px 36px rgba(12,59,46,.12);
  --ease:.18s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0;}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
a:hover{color:var(--ink-deep);}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
  border-radius:6px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px;}}

/* ---------- 顶部导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-head.is-scrolled{box-shadow:0 6px 22px rgba(12,59,46,.08);}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px;}
.brand{
  display:inline-flex;align-items:center;gap:8px;
  font-size:20px;font-weight:800;letter-spacing:.01em;color:var(--ink);
  white-space:nowrap;
}
.brand:hover{color:var(--ink-deep);}
.brand-dot{width:10px;height:10px;background:var(--lime);border-radius:3px;display:inline-block;flex:none;}
.nav-links{display:none;align-self:stretch;align-items:center;gap:28px;}
.nav-links a{
  position:relative;display:flex;align-items:center;height:72px;
  font-size:15px;font-weight:500;color:var(--muted);white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:var(--lime);opacity:0;transition:opacity var(--ease);
}
.nav-links a:hover{color:var(--ink);}
.nav-links a.active{color:var(--ink);font-weight:700;}
.nav-links a.active::after{opacity:1;}
.head-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 11px;background:var(--card);
  border:1px solid var(--line);border-radius:10px;cursor:pointer;
  transition:border-color var(--ease),background-color var(--ease);
}
.nav-toggle span{display:block;height:2px;background:var(--ink);border-radius:2px;}
.nav-toggle:hover{border-color:var(--ink);}
@media (min-width:1025px){
  .nav-links{display:flex;}
  .nav-toggle{display:none;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;border:1.5px solid transparent;
  cursor:pointer;text-align:center;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-sm{height:40px;padding:0 20px;font-size:15px;}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{background:var(--ink-deep);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(12,59,46,.22);}
.btn-primary:active{transform:translateY(0);}
.btn-secondary{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-secondary:hover{background:rgba(200,240,60,.2);color:var(--ink);}
.btn-lime{background:var(--lime);color:var(--ink-deep);}
.btn-lime:hover{background:#d6f75f;color:var(--ink-deep);transform:translateY(-2px);box-shadow:0 10px 24px rgba(12,59,46,.16);}
.link-arrow{
  display:inline-block;font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:2px solid transparent;padding-bottom:2px;
  transition:color var(--ease),border-color var(--ease);
}
.link-arrow:hover{color:var(--ink-deep);border-bottom-color:var(--lime);}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(7,42,33,.45);z-index:85;border:0;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);
  background:var(--card);z-index:90;padding:24px 22px 32px;
  transform:translateX(102%);transition:transform .24s ease;
  box-shadow:-14px 0 40px rgba(12,59,46,.18);overflow-y:auto;
  display:flex;flex-direction:column;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line);}
.drawer-brand{font-size:18px;font-weight:800;color:var(--ink);}
.drawer-close{
  width:36px;height:36px;border-radius:10px;background:var(--paper);
  border:1px solid var(--line);color:var(--ink);font-size:15px;cursor:pointer;line-height:1;
}
.drawer-close:hover{border-color:var(--ink);}
.drawer-nav{display:flex;flex-direction:column;padding:12px 0 20px;}
.drawer-nav a{
  padding:14px 0;font-size:16px;font-weight:500;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--ink-deep);padding-left:6px;}
.drawer-cta{width:100%;margin-top:auto;}
@media (min-width:1025px){
  .drawer,.drawer-mask{display:none !important;}
}

/* ---------- 移动底部 Tab ---------- */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  display:flex;align-items:center;justify-content:space-around;
  background:var(--card);border-top:1px solid var(--line);
  min-height:58px;padding:5px 6px calc(5px + env(safe-area-inset-bottom));
  box-shadow:0 -6px 22px rgba(12,59,46,.06);
}
.tab-item{
  display:flex;flex-direction:column;align-items:center;gap:3px;
  font-size:11px;line-height:1.2;color:var(--weak);
  padding:2px 4px;flex:1;min-width:0;
}
.tab-ico{
  display:flex;align-items:center;justify-content:center;
  height:30px;padding:0 12px;border-radius:999px;transition:background-color var(--ease);
}
.tab-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.tab-item:hover{color:var(--ink);}
.tab-item.active{color:var(--ink);font-weight:600;}
.tab-item.active .tab-ico{background:var(--lime);}
.tab-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;}
@media (min-width:1025px){.mobile-tabbar{display:none;}}
@media (max-width:1024px){body{padding-bottom:72px;}}

/* ---------- 主体 ---------- */
.page-main{padding:24px 0 56px;}
@media (min-width:1024px){.page-main{padding:36px 0 88px;}}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:18px;}
.crumbs a{color:var(--weak);}
.crumbs a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px;}
.crumbs .cur{color:var(--text);}
.crumbs .sep{color:#B9B6A8;}

.cat-band{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:14px 20px;margin-bottom:26px;
}
.cat-band-name{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.02em;color:var(--ink-deep);
  background:rgba(200,240,60,.38);padding:5px 14px;border-radius:999px;
}

.article-row{display:grid;grid-template-columns:minmax(0,1fr);gap:28px;}
@media (min-width:1024px){
  .article-row{grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:start;}
}

.article-shell{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 18px;box-shadow:0 10px 30px rgba(12,59,46,.05);
}
@media (min-width:640px){.article-shell{padding:32px 30px;}}
@media (min-width:1024px){.article-shell{padding:44px 48px;}}
.article-title{
  font-size:clamp(26px,3.8vw,38px);line-height:1.32;font-weight:800;
  color:var(--ink-deep);letter-spacing:-.01em;margin-bottom:16px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--weak);padding-bottom:20px;
  border-bottom:1px solid var(--line);margin-bottom:26px;
  font-variant-numeric:tabular-nums;
}
.article-meta .dot-sep{color:#CFCCC0;}
.article-meta .meta-cat{color:var(--ink);font-weight:600;}
.article-meta .meta-cat:hover{color:var(--ink-deep);}

/* ---------- 正文排版 ---------- */
.article-body{font-size:17px;line-height:1.9;color:var(--text);max-width:760px;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;font-size:28px;line-height:1.4;font-weight:700;
  color:var(--ink-deep);margin:40px 0 16px;padding-left:16px;scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:4px;
  border-radius:2px;background:var(--lime);
}
.article-body h3{font-size:22px;line-height:1.5;font-weight:600;color:var(--ink);margin:32px 0 12px;scroll-margin-top:96px;}
.article-body h4{font-size:17px;line-height:1.5;font-weight:600;color:var(--ink);margin:24px 0 10px;}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em;}
.article-body li{margin-bottom:.45em;line-height:1.85;}
.article-body blockquote{
  margin:26px 0;padding:20px 22px;background:var(--paper);
  border-left:4px solid var(--ink);border-radius:0 12px 12px 0;color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{width:100%;height:auto;border-radius:var(--r-img);margin:26px 0;background:#EFEDE6;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--weak);text-align:center;margin-top:8px;}
.article-body a{color:var(--ink);border-bottom:2px solid rgba(200,240,60,.85);}
.article-body a:hover{color:var(--ink-deep);border-bottom-color:var(--ink);}
.article-body strong{color:var(--ink-deep);font-weight:700;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;line-height:1.7;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--paper);font-weight:600;color:var(--ink);}
.article-body tr{height:44px;}
.article-body pre{
  background:var(--ink-deep);color:#DCE8E1;border-radius:12px;
  padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;margin:24px 0;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;}
.article-body p code{background:rgba(12,59,46,.07);padding:2px 6px;border-radius:6px;font-size:.92em;}
@media (max-width:640px){
  .article-body{font-size:16px;}
  .article-body h2{font-size:23px;}
  .article-body h3{font-size:19px;}
  .article-body table{display:block;overflow-x:auto;}
}

/* ---------- 空态 ---------- */
.article-empty{
  border:1px dashed var(--line);border-radius:var(--r-card);
  padding:48px 22px;text-align:center;color:var(--muted);
}
.article-empty svg{width:32px;height:32px;stroke:var(--weak);fill:none;stroke-width:1.6;margin:0 auto 14px;}
.article-empty p{font-size:15px;margin:0 0 18px;}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;min-width:0;}
@media (min-width:1024px){.article-side{position:sticky;top:96px;align-self:start;}}
.toc-card{
  display:none;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px;
}
@media (min-width:1024px){.toc-card{display:block;}}
.toc-title{font-size:14px;font-weight:700;letter-spacing:.02em;color:var(--ink);margin-bottom:14px;}
.toc-list{list-style:none;margin:0;padding:0;}
.toc-list li{margin-bottom:8px;}
.toc-list li:last-child{margin-bottom:0;}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--muted);
  padding-left:10px;border-left:2px solid var(--line);
  transition:color var(--ease),border-color var(--ease);
}
.toc-list a:hover{color:var(--ink);border-left-color:var(--lime);}
.side-cta{
  background:rgba(200,240,60,.12);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;
}
.side-cta-t{font-size:17px;font-weight:700;color:var(--ink-deep);line-height:1.5;margin-bottom:10px;}
.side-cta p{font-size:14px;line-height:1.8;color:var(--muted);margin-bottom:16px;}
.side-cta .btn{width:100%;}

/* ---------- 相关推荐 ---------- */
.related-wrap{margin-top:48px;}
@media (min-width:1024px){.related-wrap{margin-top:64px;}}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap;}
.sec-title{font-size:24px;font-weight:700;color:var(--ink-deep);line-height:1.4;}
.sec-title small{display:block;font-size:14px;font-weight:400;color:var(--muted);margin-top:6px;}
.rel-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:20px;}
@media (min-width:640px){.rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.rel-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.rel-card{
  display:flex;flex-direction:column;background:var(--card);
  border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:box-shadow var(--ease),transform var(--ease);
}
.rel-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EFEDE6;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-tag{
  position:absolute;left:12px;top:12px;z-index:2;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(255,255,255,.92);color:var(--ink-deep);
  padding:4px 12px;border-radius:999px;
}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.rel-title{
  font-size:18px;line-height:1.5;font-weight:600;color:var(--ink-deep);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-desc{
  font-size:14px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-foot{
  margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--weak);font-variant-numeric:tabular-nums;
}
.rel-foot .read{font-weight:600;color:var(--ink);}
.rel-card:hover .rel-foot .read{border-bottom:2px solid var(--lime);}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink-deep);color:#C8D6CE;padding:56px 0 32px;margin-top:32px;}
.foot-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;}
@media (min-width:640px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}}
.foot-brand{
  display:inline-flex;align-items:center;gap:8px;
  font-size:20px;font-weight:800;letter-spacing:.01em;color:#fff;
}
.foot-brand:hover{color:#fff;}
.foot-brand .brand-dot{background:var(--lime);}
.foot-desc{font-size:14px;line-height:1.8;color:#9FB3A8;margin-top:12px;max-width:360px;}
.foot-title{font-size:14px;font-weight:600;color:var(--lime);margin-bottom:14px;letter-spacing:.02em;}
.foot-col ul{list-style:none;margin:0;padding:0;}
.foot-col li{margin-bottom:10px;}
.foot-col a{font-size:15px;color:#C8D6CE;}
.foot-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.foot-col p{font-size:14px;line-height:1.8;color:#C8D6CE;margin-bottom:10px;}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:#7E948A;
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
    --ink:#0C3B2E;
    --deep:#072A21;
    --lime:#C8F03C;
    --orange:#F26B3A;
    --paper:#F6F5F0;
    --card:#FFFFFF;
    --text:#1B2621;
    --sub:#55635C;
    --weak:#8A968F;
    --line:#E2E0D6;
    --lime-soft:rgba(200,240,60,.18);
    --shadow-card:0 0 0 1px var(--line), 0 10px 30px rgba(12,59,46,.06);
    --shadow-hover:0 0 0 1px var(--lime), 0 16px 36px rgba(12,59,46,.12);
    --r-card:18px;
    --r-img:14px;
    --r-btn:10px;
    --font-sans:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}

  html{-webkit-text-size-adjust:100%;}

  body{
    margin:0;
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.85;
    color:var(--text);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }

  h1,h2,h3,h4,h5,h6{
    font-family:var(--font-sans);
    color:var(--text);
    margin:0;
    font-weight:700;
    letter-spacing:.01em;
  }

  h1{font-size:clamp(28px,4vw,44px);line-height:1.18;font-weight:800;}
  h2{font-size:30px;line-height:1.3;font-weight:700;}
  h3{font-size:21px;line-height:1.5;font-weight:600;}
  h4{font-size:17px;line-height:1.5;font-weight:600;}

  p{margin:0 0 1.2em;}
  p:last-child{margin-bottom:0;}

  a{color:var(--ink);text-decoration:none;transition:color .18s ease,background .18s ease,border-color .18s ease;}
  a:hover{color:var(--deep);}

  img{max-width:100%;display:block;}

  ul,ol{margin:0;padding:0;list-style:none;}

  button{font-family:inherit;}

  a:focus-visible,
  button:focus-visible,
  summary:focus-visible{
    outline:2px solid var(--lime);
    outline-offset:2px;
    border-radius:6px;
  }

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 20px;
  }

  /* ---------- 顶部导航 ---------- */
  .site-head{
    position:sticky;
    top:0;
    z-index:200;
    background:var(--paper);
    border-bottom:1px solid var(--line);
    transition:box-shadow .2s ease;
  }
  .site-head.scrolled{box-shadow:0 6px 22px rgba(12,59,46,.08);}

  .nav-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    height:72px;
  }

  .brand{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:19px;
    font-weight:800;
    letter-spacing:.01em;
    color:var(--ink);
    white-space:nowrap;
  }
  .brand:hover{color:var(--ink);}
  .brand-dot{
    width:10px;
    height:10px;
    border-radius:2px;
    background:var(--lime);
    display:inline-block;
    transform:translateY(1px);
  }

  .nav-links{
    display:flex;
    align-items:center;
    gap:2px;
    margin:0;
  }
  .nav-links a{
    position:relative;
    display:inline-flex;
    align-items:center;
    height:40px;
    padding:0 14px;
    font-size:15px;
    font-weight:500;
    color:var(--sub);
    border-radius:8px;
  }
  .nav-links a:hover{
    color:var(--ink);
    background:rgba(12,59,46,.05);
  }
  .nav-links a.active{
    color:var(--ink);
    font-weight:600;
  }
  .nav-links a.active::after{
    content:"";
    position:absolute;
    left:14px;
    right:14px;
    bottom:2px;
    height:3px;
    border-radius:2px;
    background:var(--lime);
  }

  .nav-right{display:flex;align-items:center;gap:12px;}

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:48px;
    padding:0 28px;
    border-radius:var(--r-btn);
    border:1.5px solid transparent;
    font-size:16px;
    font-weight:600;
    line-height:1;
    cursor:pointer;
    transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  }
  .btn-primary{
    background:var(--ink);
    color:var(--paper);
    border-color:var(--ink);
  }
  .btn-primary:hover{
    background:var(--deep);
    border-color:var(--deep);
    color:var(--paper);
    transform:translateY(-2px);
    box-shadow:0 10px 22px rgba(12,59,46,.22);
  }
  .btn-primary:active{transform:translateY(0);box-shadow:none;}

  .btn-ghost{
    background:transparent;
    color:var(--ink);
    border-color:var(--ink);
  }
  .btn-ghost:hover{
    background:rgba(200,240,60,.2);
    color:var(--ink);
    transform:translateY(-2px);
  }
  .btn-ghost:active{transform:translateY(0);}

  .btn-sm{
    height:40px;
    padding:0 20px;
    font-size:14px;
  }

  .nav-toggle{
    display:none;
    width:42px;
    height:42px;
    padding:0;
    border:1.5px solid var(--line);
    border-radius:10px;
    background:var(--card);
    cursor:pointer;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:4px;
  }
  .nav-toggle span{
    display:block;
    width:18px;
    height:2px;
    border-radius:2px;
    background:var(--ink);
    transition:transform .18s ease,opacity .18s ease;
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

  .drawer{
    display:none;
    position:absolute;
    top:100%;
    left:0;
    right:0;
    background:var(--paper);
    border-bottom:1px solid var(--line);
    box-shadow:0 18px 34px rgba(12,59,46,.12);
    padding:16px 0 22px;
  }
  .drawer.open{display:block;}
  .drawer-list{display:flex;flex-direction:column;gap:2px;margin-bottom:16px;}
  .drawer-list a{
    display:block;
    padding:12px 4px;
    font-size:16px;
    font-weight:500;
    color:var(--sub);
    border-bottom:1px solid var(--line);
  }
  .drawer-list a.active{color:var(--ink);font-weight:700;}
  .drawer-cta{width:100%;}

  /* ---------- 紧凑首屏 ---------- */
  .cat-hero{
    background:var(--paper);
    padding:34px 0 30px;
    border-bottom:1px solid var(--line);
  }
  .cat-hero-inner{
    display:grid;
    grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);
    gap:32px;
    align-items:end;
  }
  .crumbs{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--weak);
    margin-bottom:14px;
  }
  .crumbs a{color:var(--weak);}
  .crumbs a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px;}
  .crumbs .sep{color:var(--line);}
  .crumbs .now{color:var(--text);}

  .cat-hero h1{
    max-width:720px;
    letter-spacing:.005em;
  }
  .hero-note{
    font-size:15px;
    line-height:1.8;
    color:var(--sub);
    padding-left:20px;
    border-left:3px solid var(--lime);
    margin:0 0 6px;
  }

  /* ---------- 通用板块 ---------- */
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .section-white{background:var(--card);}
  .section-deep{background:var(--deep);color:#C8D6CE;}

  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:24px;
    margin-bottom:28px;
  }
  .section-head h2{max-width:680px;}
  .section-desc{
    font-size:15px;
    color:var(--sub);
    max-width:720px;
    margin:12px 0 0;
  }
  .text-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:14px;
    font-weight:600;
    color:var(--ink);
    border-bottom:2px solid var(--ink);
    padding-bottom:2px;
    white-space:nowrap;
    transition:border-color .18s ease,color .18s ease;
  }
  .text-link:hover{border-color:var(--lime);color:var(--ink);}

  /* ---------- 指标条 ---------- */
  .metric-grid{margin:0 -12px;}
  .metric-grid > .cell{padding:0 12px 24px;display:flex;}

  .metric{
    width:100%;
    background:var(--card);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-card);
    padding:22px 24px;
    display:flex;
    align-items:center;
    gap:18px;
    transition:box-shadow .18s ease,transform .18s ease;
  }
  .metric:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);}

  .metric-num{
    font-size:36px;
    font-weight:800;
    line-height:1;
    color:var(--ink);
    font-variant-numeric:tabular-nums;
    letter-spacing:-.02em;
    flex:0 0 auto;
  }
  .metric-num small{
    display:block;
    font-size:12px;
    font-weight:600;
    color:var(--weak);
    letter-spacing:.02em;
    margin-top:8px;
    text-align:center;
  }
  .metric-body{min-width:0;}
  .metric-title{
    font-size:15px;
    font-weight:700;
    color:var(--text);
    margin-bottom:4px;
  }
  .metric-desc{
    font-size:13px;
    line-height:1.7;
    color:var(--sub);
    margin:0;
  }
  .metric-bar{
    margin-top:12px;
    height:6px;
    border-radius:999px;
    background:#E2E0D6;
    overflow:hidden;
  }
  .metric-bar i{
    display:block;
    height:100%;
    border-radius:999px;
    background:linear-gradient(90deg,var(--ink),var(--lime));
  }

  /* ---------- 高密度内容卡 ---------- */
  .card-grid{margin:0 -12px;}
  .card-grid > .cell{padding:0 12px 24px;display:flex;}

  .datacard{
    width:100%;
    display:flex;
    flex-direction:column;
    background:var(--card);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-card);
    overflow:hidden;
    transition:transform .18s ease,box-shadow .18s ease;
  }
  .datacard:hover{
    transform:translateY(-3px);
    box-shadow:var(--shadow-hover);
  }
  .datacard-fig{
    position:relative;
    aspect-ratio:16/9;
    background:#EFEDE6;
    overflow:hidden;
  }
  .datacard-fig img{
    width:100%;
    height:100%;
    object-fit:cover;
    border-radius:0;
    transition:transform .35s ease;
  }
  .datacard:hover .datacard-fig img{transform:scale(1.03);}

  .fig-badge{
    position:absolute;
    top:12px;
    left:12px;
    display:inline-flex;
    align-items:center;
    height:26px;
    padding:0 12px;
    border-radius:999px;
    background:rgba(255,255,255,.94);
    color:var(--ink);
    font-size:12px;
    font-weight:600;
    letter-spacing:.02em;
  }

  .datacard-body{
    padding:20px 22px 22px;
    display:flex;
    flex-direction:column;
    flex:1;
  }
  .datacard-title{
    font-size:18px;
    line-height:1.5;
    font-weight:600;
    color:var(--text);
    margin:0 0 8px;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .datacard-text{
    font-size:14px;
    line-height:1.75;
    color:var(--sub);
    margin:0 0 16px;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .tag-row{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    margin-bottom:16px;
  }
  .tag{
    display:inline-flex;
    align-items:center;
    height:24px;
    padding:0 10px;
    border-radius:999px;
    border:1px solid var(--line);
    background:var(--paper);
    color:var(--sub);
    font-size:12px;
    font-weight:500;
    letter-spacing:.02em;
  }
  .tag-lime{
    background:var(--lime);
    border-color:var(--lime);
    color:var(--ink);
    font-weight:600;
  }
  .datacard-foot{
    margin-top:auto;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding-top:14px;
    border-top:1px solid var(--line);
    font-size:13px;
    color:var(--weak);
  }
  .datacard-foot .read{
    color:var(--ink);
    font-weight:600;
  }
  .datacard:hover .datacard-foot .read{text-decoration:underline;text-underline-offset:4px;}

  /* ---------- 口径表 ---------- */
  .table-wrap{
    background:var(--card);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-card);
    overflow-x:auto;
    -webkit-overflow-scrolling:touch;
  }
  table.dtable{
    width:100%;
    min-width:660px;
    border-collapse:collapse;
    margin:0;
    background:transparent;
    border:0;
  }
  table.dtable th{
    background:var(--paper);
    color:var(--sub);
    font-size:13px;
    font-weight:600;
    text-align:left;
    padding:12px 18px;
    border-bottom:1px solid var(--line);
    letter-spacing:.02em;
    white-space:nowrap;
  }
  table.dtable td{
    padding:14px 18px;
    font-size:14px;
    line-height:1.7;
    color:var(--text);
    border-bottom:1px solid var(--line);
    vertical-align:top;
  }
  table.dtable tr:last-child td{border-bottom:0;}
  table.dtable td:first-child{
    font-weight:600;
    color:var(--ink);
    white-space:nowrap;
  }
  .table-note{
    font-size:13px;
    color:var(--weak);
    margin-top:14px;
  }

  /* ---------- FAQ ---------- */
  .faq-list{
    background:var(--card);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-card);
    padding:6px 26px;
  }
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item:last-child{border-bottom:0;}
  .faq-q{
    width:100%;
    display:flex;
    align-items:flex-start;
    gap:14px;
    padding:18px 0;
    background:none;
    border:0;
    text-align:left;
    cursor:pointer;
    color:var(--text);
  }
  .faq-num{
    flex:0 0 26px;
    width:26px;
    height:26px;
    margin-top:2px;
    border-radius:7px;
    background:var(--lime);
    color:var(--ink);
    font-size:13px;
    font-weight:700;
    display:flex;
    align-items:center;
    justify-content:center;
    font-variant-numeric:tabular-nums;
  }
  .faq-t{
    flex:1;
    font-size:17px;
    font-weight:600;
    line-height:1.6;
  }
  .faq-q:hover .faq-t{color:var(--ink);}
  .faq-ico{
    flex:0 0 22px;
    width:22px;
    height:22px;
    margin-top:4px;
    transition:transform .18s ease;
    color:var(--ink);
  }
  .faq-item.open .faq-ico{transform:rotate(180deg);}
  .faq-a{
    display:none;
    max-width:720px;
    padding:0 0 18px 40px;
    font-size:15px;
    line-height:1.8;
    color:var(--sub);
  }
  .faq-item.open .faq-a{display:block;}

  /* ---------- CTA ---------- */
  .cta-band{
    background:var(--deep);
    color:#C8D6CE;
    padding:56px 0;
  }
  .cta-inner{
    display:grid;
    grid-template-columns:minmax(0,1fr) auto;
    gap:32px;
    align-items:center;
  }
  .cta-band h2{
    color:#FFFFFF;
    font-size:28px;
    margin-bottom:10px;
  }
  .cta-band p{
    max-width:640px;
    font-size:15px;
    line-height:1.8;
    color:#C8D6CE;
    margin:0;
  }
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
  .btn-lime{
    background:var(--lime);
    color:var(--deep);
    border-color:var(--lime);
  }
  .btn-lime:hover{
    background:#D6F86B;
    border-color:#D6F86A;
    color:var(--deep);
    transform:translateY(-2px);
    box-shadow:0 10px 22px rgba(0,0,0,.22);
  }
  .btn-lime:active{transform:translateY(0);box-shadow:none;}
  .btn-outline-light{
    background:transparent;
    color:#E6EEE9;
    border-color:rgba(255,255,255,.4);
  }
  .btn-outline-light:hover{
    background:rgba(200,240,60,.18);
    border-color:var(--lime);
    color:#FFFFFF;
    transform:translateY(-2px);
  }

  /* ---------- 页脚 ---------- */
  .site-foot{
    background:var(--deep);
    color:#C8D6CE;
    padding:56px 0 32px;
  }
  .foot-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1fr;
    gap:32px;
  }
  .foot-brand{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:19px;
    font-weight:800;
    color:#FFFFFF;
    margin-bottom:14px;
  }
  .foot-brand:hover{color:#FFFFFF;}
  .foot-desc{
    font-size:14px;
    line-height:1.8;
    color:#9FB3AA;
    max-width:320px;
    margin:0;
  }
  .foot-title{
    font-size:14px;
    font-weight:600;
    color:var(--lime);
    margin-bottom:16px;
  }
  .foot-col ul{display:flex;flex-direction:column;gap:10px;}
  .foot-col p{
    font-size:14px;
    line-height:1.8;
    color:#C8D6CE;
    margin:0 0 10px;
  }
  .foot-col a{
    font-size:15px;
    color:#C8D6CE;
  }
  .foot-col a:hover{
    color:#FFFFFF;
    text-decoration:underline;
    text-underline-offset:4px;
  }
  .foot-bottom{
    margin-top:40px;
    padding-top:20px;
    border-top:1px solid rgba(255,255,255,.12);
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    justify-content:space-between;
    font-size:13px;
    color:#8FA79C;
  }

  /* ---------- 移动底部 Tab ---------- */
  .bottom-tab{display:none;}

  @media (max-width:1023px){
    body{padding-bottom:72px;}

    .nav-links{display:none;}
    .nav-cta{display:none;}
    .nav-toggle{display:flex;}

    .bottom-tab{
      position:fixed;
      left:0;
      right:0;
      bottom:0;
      z-index:220;
      display:flex;
      align-items:stretch;
      justify-content:space-around;
      height:58px;
      padding-bottom:env(safe-area-inset-bottom);
      background:rgba(255,255,255,.98);
      border-top:1px solid var(--line);
      box-shadow:0 -6px 20px rgba(12,59,46,.07);
    }
    .bottom-tab a{
      flex:1;
      display:flex;
      flex-direction:column;
      align-items:center;
      justify-content:center;
      gap:2px;
      font-size:11px;
      color:var(--weak);
      padding:4px 2px;
    }
    .bottom-tab a svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
    .bottom-tab a .tab-pill{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      height:30px;
      padding:0 14px;
      border-radius:999px;
      transition:background .18s ease;
    }
    .bottom-tab a.active{color:var(--ink);font-weight:600;}
    .bottom-tab a.active .tab-pill{background:var(--lime-soft);}
    .bottom-tab a:active .tab-pill{background:var(--lime-soft);}
  }

  @media (max-width:1023px){
    .cat-hero-inner{grid-template-columns:1fr;gap:20px;align-items:start;}
    .hero-note{padding-left:16px;font-size:14px;}
    .cta-inner{grid-template-columns:1fr;gap:24px;}
    .foot-grid{grid-template-columns:1fr 1fr;}
    .foot-col:first-child{grid-column:1 / -1;}
    .foot-col:last-child{grid-column:1 / -1;}
  }

  @media (max-width:639px){
    body{font-size:16px;}
    .section{padding:44px 0;}
    .section-tight{padding:36px 0;}
    .cat-hero{padding:26px 0 24px;}
    h1{font-size:clamp(24px,7vw,30px);}
    h2{font-size:24px;}
    .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
    .metric{padding:18px 18px;}
    .metric-num{font-size:30px;}
    .metric-grid > .cell,
    .card-grid > .cell{padding:0 10px 18px;}
    .metric-grid,
    .card-grid{margin:0 -10px;}
    .datacard-body{padding:18px 18px 20px;}
    .faq-list{padding:4px 18px;}
    .faq-a{padding-left:0;}
    .faq-t{font-size:16px;}
    .cta-band{padding:44px 0;}
    .site-foot{padding:44px 0 28px;}
    .foot-grid{gap:24px;}
    .btn{width:100%;}
    .cta-actions{width:100%;flex-direction:column;}
    .cta-actions .btn{width:100%;}
    .drawer-cta{width:100%;}
  }

  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;}
    .datacard:hover,.metric:hover,.btn:hover{transform:none;}
  }

/* roulang page: category2 */
:root{
  --ink:#0C3B2E;
  --ink-deep:#072A21;
  --lime:#C8F03C;
  --orange:#F26B3A;
  --paper:#F6F5F0;
  --card:#FFFFFF;
  --text:#1B2621;
  --sub:#55635C;
  --muted:#8A968F;
  --line:#E2E0D6;
  --soft:#EFEDE6;
  --r-card:18px;
  --r-img:14px;
  --r-btn:10px;
  --shadow-card:0 0 0 1px #E2E0D6, 0 10px 30px rgba(12,59,46,.06);
  --shadow-card-hover:0 0 0 1px #C8F03C, 0 16px 36px rgba(12,59,46,.12);
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --ease:.18s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding-left:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease)}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1024px){.container{padding:0 32px}}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,245,240,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease),background var(--ease);
}
.site-header.scrolled{box-shadow:0 6px 22px rgba(12,59,46,.08);background:#F6F5F0}
.nav-wrap{
  height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.logo{
  display:inline-flex;align-items:center;gap:8px;
  font-size:19px;font-weight:800;letter-spacing:.01em;color:var(--ink);
  white-space:nowrap;
}
.logo .brand-dot{width:10px;height:10px;background:var(--lime);border-radius:2px;display:inline-block}
.nav-links{display:none}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:4px}
  .nav-links a{
    position:relative;display:inline-block;
    font-size:15px;font-weight:500;color:var(--sub);
    padding:8px 12px;border-radius:8px;
  }
  .nav-links a:hover{color:var(--ink);background:rgba(12,59,46,.06)}
  .nav-links a.active{color:var(--ink);font-weight:600}
  .nav-links a.active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:3px;
    background:var(--lime);border-radius:2px;
  }
}
.nav-right{display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;border:1.5px solid transparent;
  transition:transform var(--ease),background-color var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-primary{background:var(--ink);color:#F6F5F0}
.btn-primary:hover{background:var(--ink-deep);transform:translateY(-2px);box-shadow:0 10px 22px rgba(12,59,46,.2)}
.btn-secondary{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-secondary:hover{background:rgba(200,240,60,.28);transform:translateY(-2px)}
.btn-ghost-light{background:transparent;border-color:rgba(246,245,240,.55);color:#F6F5F0}
.btn-ghost-light:hover{background:rgba(246,245,240,.12);border-color:#F6F5F0;transform:translateY(-2px)}
.btn-primary:active,.btn-secondary:active,.btn-sm:active{transform:translateY(0)}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:var(--card);color:var(--ink);
}
.nav-toggle:hover{background:#EFEDE6}
@media (min-width:1024px){.nav-toggle{display:none}}
.drawer{
  display:none;position:absolute;left:0;right:0;top:100%;
  background:var(--paper);border-bottom:1px solid var(--line);
  box-shadow:0 18px 32px rgba(12,59,46,.1);
  padding:14px 20px 22px;
}
.drawer.open{display:block}
.drawer a.d-link{
  display:block;padding:13px 6px;font-size:16px;font-weight:500;color:var(--sub);
  border-bottom:1px solid var(--line);
}
.drawer a.d-link:hover{color:var(--ink)}
.drawer a.d-link.active{color:var(--ink);font-weight:600;box-shadow:inset 3px 0 0 var(--lime);padding-left:14px}
.drawer .btn{width:100%;margin-top:16px}
.header-cta{display:none}
@media (min-width:640px){.header-cta{display:inline-flex}}

/* ---------- hero ---------- */
.cat-hero{padding:44px 0 48px}
@media (min-width:1024px){.cat-hero{padding:64px 0 56px}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media (min-width:900px){.hero-grid{grid-template-columns:1.1fr .9fr;gap:56px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--ink);background:rgba(200,240,60,.42);
  border:1px solid rgba(12,59,46,.12);
  padding:5px 12px;border-radius:999px;margin-bottom:18px;
}
h1{
  font-size:clamp(30px,4.2vw,48px);
  line-height:1.18;font-weight:800;letter-spacing:-.01em;color:var(--ink);
}
.hero-sub{
  margin-top:16px;font-size:clamp(18px,2vw,21px);line-height:1.55;
  font-weight:600;color:var(--ink);
}
.hero-text{margin-top:16px;font-size:16px;line-height:1.85;color:var(--sub);max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
@media (max-width:639px){
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
}
.hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;background:#EDEBE3;box-shadow:var(--shadow-card)}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-badge{
  position:absolute;right:16px;top:16px;background:rgba(255,255,255,.96);
  border-radius:14px;padding:10px 14px;box-shadow:0 10px 24px rgba(12,59,46,.16);
  display:flex;flex-direction:column;line-height:1.2;
}
.hero-badge strong{font-size:22px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums}
.hero-badge span{font-size:12px;color:var(--sub);margin-top:4px}

/* ---------- 通用区块 ---------- */
.section{padding:64px 0}
@media (min-width:1024px){.section{padding:96px 0}}
.section-white{background:#FFFFFF}
.section-head{max-width:760px}
.section-head h2{
  font-size:clamp(24px,3vw,30px);line-height:1.3;font-weight:700;color:var(--ink);
}
.section-head p{margin-top:14px;color:var(--sub);font-size:16px}
.eyebrow-line{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--muted);margin-bottom:12px;
}

/* ---------- Z 字交替 ---------- */
.zig{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
.zig + .zig{margin-top:64px}
@media (min-width:1024px){
  .zig{grid-template-columns:1.02fr 1fr;gap:64px}
  .zig + .zig{margin-top:96px}
  .zig.reverse .zig-media{order:2}
  .zig.reverse .zig-body{order:1}
}
.zig-media{position:relative;border-radius:var(--r-img);overflow:hidden;background:#EDEBE3;box-shadow:var(--shadow-card)}
.zig-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s ease}
.zig-media:hover img{transform:scale(1.03)}
.zig-media .media-tag{
  position:absolute;left:14px;bottom:14px;background:rgba(255,255,255,.94);
  color:var(--ink);font-size:12px;font-weight:600;padding:6px 12px;border-radius:999px;
}
.zig-body h3{font-size:clamp(21px,2.4vw,26px);line-height:1.35;font-weight:700;color:var(--ink)}
.zig-body > p{margin-top:14px;color:var(--sub);font-size:16px;line-height:1.85}
.check-list{margin-top:22px;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;line-height:1.7;color:var(--text)}
.check-list .tick{
  flex:none;width:22px;height:22px;border-radius:7px;margin-top:2px;
  background:rgba(200,240,60,.4);color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;
}
.check-list .tick svg{width:13px;height:13px;stroke-width:2.4}
.text-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:24px;
  font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:2px solid var(--ink);padding-bottom:2px;
  transition:border-color var(--ease),color var(--ease);
}
.text-link:hover{border-color:var(--lime);color:var(--ink-deep)}
.text-link svg{width:15px;height:15px}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:16px;margin-top:40px}
@media (min-width:640px){.steps{grid-template-columns:repeat(2,1fr);gap:20px}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:24px}}
.step-card{
  background:var(--card);border-radius:var(--r-card);padding:24px;
  box-shadow:var(--shadow-card);transition:transform var(--ease),box-shadow var(--ease);
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover)}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--ink);color:#F6F5F0;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step-card h4{font-size:17px;font-weight:600;color:var(--ink)}
.step-card p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--sub)}

/* ---------- FAQ ---------- */
.faq-wrap{margin-top:36px;border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;align-items:center;gap:14px;width:100%;
  padding:18px 0;text-align:left;font-size:17px;font-weight:600;color:var(--text);
  transition:color var(--ease);
}
.faq-q:hover{color:var(--ink)}
.faq-num{
  flex:none;width:24px;height:24px;border-radius:6px;background:var(--lime);color:var(--ink);
  font-size:13px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.faq-icon{margin-left:auto;flex:none;width:20px;height:20px;color:var(--sub);transition:transform var(--ease)}
.faq-item.open .faq-icon{transform:rotate(180deg);color:var(--ink)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{
  margin:0 0 20px 38px;max-width:720px;
  font-size:15px;line-height:1.8;color:var(--sub);
}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;color:#F6F5F0;
  background-color:var(--ink-deep);
  background-image:linear-gradient(120deg,rgba(7,42,33,.94),rgba(12,59,46,.86)),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  padding:64px 0;
}
@media (min-width:1024px){.cta-band{padding:88px 0}}
.cta-inner{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
@media (min-width:900px){.cta-inner{grid-template-columns:1.3fr .7fr;gap:48px}}
.cta-band h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3;font-weight:700;color:#F6F5F0}
.cta-band p{margin-top:14px;font-size:16px;line-height:1.8;color:#C8D6CE;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:639px){.cta-actions{flex-direction:column}.cta-actions .btn{width:100%}}
.cta-note{margin-top:16px;font-size:13px;color:#9FB3A9}

/* ---------- footer ---------- */
.site-foot{
  background:var(--ink-deep);color:#C8D6CE;
  padding:56px 0 32px;margin-top:0;
}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){.foot-grid{grid-template-columns:repeat(2,1fr);gap:32px}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}}
.foot-brand{
  display:inline-flex;align-items:center;gap:8px;
  font-size:19px;font-weight:800;color:#F6F5F0;letter-spacing:.01em;
}
.foot-brand .brand-dot{width:10px;height:10px;background:var(--lime);border-radius:2px;display:inline-block}
.foot-desc{margin-top:14px;font-size:14px;line-height:1.8;color:#9FB3A9;max-width:340px}
.foot-title{font-size:14px;font-weight:600;color:var(--lime);margin-bottom:14px}
.site-foot ul li{margin-bottom:10px}
.site-foot a{font-size:15px;color:#C8D6CE}
.site-foot a:hover{color:#F6F5F0;text-decoration:underline;text-underline-offset:4px}
.foot-col p{font-size:15px;color:#C8D6CE;margin-bottom:8px}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#8FA79C;
}

/* ---------- 移动底部 Tab ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  display:flex;align-items:center;justify-content:space-around;
  height:58px;padding:0 8px;
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.98);
  border-top:1px solid var(--line);
  box-shadow:0 -6px 20px rgba(12,59,46,.06);
}
@media (min-width:1024px){.tabbar{display:none}}
.tab-item{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  flex:1;height:100%;font-size:11px;color:var(--muted);font-weight:500;
}
.tab-item svg{width:24px;height:24px;stroke-width:1.8;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round}
.tab-item .tab-pill{
  display:inline-flex;align-items:center;justify-content:center;gap:5px;
  height:30px;border-radius:999px;padding:0 14px;transition:background-color var(--ease),color var(--ease);
}
.tab-item:hover{color:var(--ink)}
.tab-item.active{color:var(--ink);font-weight:600}
.tab-item.active .tab-pill{background:rgba(200,240,60,.55)}
@media (max-width:1023px){body{padding-bottom:72px}}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important}
  .btn:hover,.step-card:hover,.zig-media:hover img{transform:none !important}
}

/* roulang page: category3 */
:root{
  --ink:#0C3B2E;
  --ink-deep:#072A21;
  --lime:#C8F03C;
  --lime-soft:rgba(200,240,60,.18);
  --orange:#F26B3A;
  --paper:#F6F5F0;
  --card:#FFFFFF;
  --text:#1B2621;
  --sub:#55635C;
  --weak:#8A968F;
  --line:#E2E0D6;
  --r-card:18px;
  --r-img:14px;
  --r-btn:10px;
  --shadow:0 0 0 1px var(--line),0 10px 30px rgba(12,59,46,.06);
  --shadow-hover:0 0 0 1px var(--lime),0 16px 36px rgba(12,59,46,.12);
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  padding-bottom:72px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;}
a:hover{color:var(--ink-deep);}
button{font-family:inherit;}
[hidden]{display:none !important;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){ .container{padding:0 32px;} }

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:var(--card);
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease;
}
.site-head.is-stuck{box-shadow:0 6px 22px rgba(12,59,46,.08);}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px;}
.brand{
  display:inline-flex;align-items:center;gap:8px;
  font-size:20px;font-weight:800;letter-spacing:.01em;color:var(--ink);
  white-space:nowrap;
}
.brand-dot{width:9px;height:9px;border-radius:2px;background:var(--lime);display:inline-block;flex:0 0 auto;}
.nav-links{display:none;align-items:center;gap:28px;}
.nav-links a{
  position:relative;display:inline-block;
  padding:8px 0;font-size:15px;font-weight:500;color:var(--text);
  transition:color .18s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:var(--lime);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{color:var(--ink);font-weight:600;}
.head-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:var(--card);display:inline-flex;flex-direction:column;justify-content:center;
  align-items:center;gap:5px;cursor:pointer;transition:background .18s,border-color .18s;
}
.nav-toggle:hover{background:var(--lime-soft);border-color:var(--lime);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .18s ease,opacity .18s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-drawer{
  border-top:1px solid var(--line);
  background:var(--card);
  padding:16px 0 22px;
}
.drawer-group{display:flex;flex-direction:column;}
.drawer-group a{
  padding:14px 2px;font-size:16px;color:var(--text);
  border-bottom:1px solid var(--line);
  transition:color .18s ease,padding-left .18s ease;
}
.drawer-group a:hover{color:var(--ink);padding-left:6px;}
.drawer-group a.active{color:var(--ink);font-weight:600;}
.drawer-cta{margin-top:18px;width:100%;}
@media (min-width:1024px){
  .nav-links{display:flex;}
  .nav-toggle{display:none;}
  .nav-drawer{display:none !important;}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;border:0;cursor:pointer;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{background:var(--ink-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(12,59,46,.18);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;border:1.5px solid var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--lime-soft);color:var(--ink);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-lime{background:var(--lime);color:var(--ink);}
.btn-lime:hover{background:#d6f75f;color:var(--ink-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(12,59,46,.22);}
.btn-sm{height:40px;padding:0 20px;font-size:15px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--ink);
  border-bottom:2px solid var(--line);padding-bottom:2px;
  transition:border-color .18s ease,color .18s ease;
}
.link-arrow:hover{border-color:var(--lime);color:var(--ink-deep);}
.link-arrow::after{content:"→";font-size:14px;transition:transform .18s ease;}
.link-arrow:hover::after{transform:translateX(3px);}

/* ---------- breadcrumb ---------- */
.crumb{padding:18px 0 0;font-size:13px;color:var(--weak);}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb li{display:inline-flex;align-items:center;gap:8px;}
.crumb li + li::before{content:"/";color:var(--weak);}
.crumb a{color:var(--weak);transition:color .18s ease;}
.crumb a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px;}
.crumb .current{color:var(--text);}

/* ---------- hero ---------- */
.kb-hero{background:var(--card);border-bottom:1px solid var(--line);padding:22px 0 30px;}
.kb-hero-inner{display:grid;gap:16px;align-items:end;}
.kb-hero h1{
  font-size:clamp(28px,3.6vw,44px);line-height:1.18;font-weight:800;
  letter-spacing:-.01em;color:var(--ink);max-width:22em;
}
.hero-note{font-size:15px;line-height:1.85;color:var(--sub);max-width:40em;}
.hero-note strong{color:var(--ink);font-weight:600;}
@media (min-width:1024px){
  .kb-hero{padding:26px 0 36px;}
  .kb-hero-inner{grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:56px;}
}

/* ---------- metrics ---------- */
.kb-metrics{background:var(--paper);border-bottom:1px solid var(--line);padding:18px 0;}
.kb-metrics-grid{display:grid;grid-template-columns:1fr;gap:1px;background:var(--line);border-radius:var(--r-card);overflow:hidden;}
.kb-metric{background:var(--card);padding:16px 20px;display:flex;align-items:baseline;gap:12px;}
.metric-num{
  font-size:26px;font-weight:800;color:var(--ink);
  font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-.01em;
}
.metric-unit{font-size:12px;color:var(--weak);}
.metric-label{font-size:13px;color:var(--sub);}
@media (min-width:640px){ .kb-metrics-grid{grid-template-columns:repeat(3,minmax(0,1fr));} }

/* ---------- layout ---------- */
.kb-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:36px;padding:44px 0 64px;}
@media (min-width:1024px){
  .kb-layout{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:32px;padding:56px 0 80px;}
}
.section-title{font-size:24px;line-height:1.3;font-weight:700;color:var(--ink);}
@media (min-width:1024px){ .section-title{font-size:30px;} }
.section-sub{font-size:15px;color:var(--sub);margin-top:10px;max-width:52em;}
.list-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:8px;}

/* ---------- knowledge items ---------- */
.kb-list{border-top:1px solid var(--line);}
.kb-item{
  display:grid;grid-template-columns:52px minmax(0,1fr);gap:16px;
  padding:24px 0;border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.kb-item:hover{background:rgba(255,255,255,.72);}
.kb-mark{
  width:52px;height:56px;border-radius:12px;background:var(--ink);
  color:var(--lime);display:flex;flex-direction:column;align-items:center;
  justify-content:center;line-height:1.1;gap:3px;flex:0 0 auto;
}
.kb-num{font-size:17px;font-weight:800;font-variant-numeric:tabular-nums;}
.kb-mark-label{font-size:10px;letter-spacing:.08em;color:rgba(200,240,60,.8);}
.kb-body{min-width:0;}
.badge{
  display:inline-flex;align-items:center;
  font-size:12.5px;font-weight:500;letter-spacing:.02em;
  padding:3px 11px;border-radius:999px;
  background:var(--paper);border:1px solid var(--line);color:var(--sub);
}
.badge-lime{background:var(--lime);border-color:var(--lime);color:var(--ink);font-weight:600;}
.kb-title{font-size:19px;line-height:1.5;font-weight:600;color:var(--ink);margin:10px 0 8px;}
.kb-title a{color:inherit;transition:color .18s ease;}
.kb-title a:hover{color:var(--ink-deep);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--lime);text-decoration-thickness:2px;}
.kb-desc{font-size:15px;line-height:1.75;color:var(--sub);}
.kb-tags{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 14px;}
.tag{
  display:inline-flex;align-items:center;
  font-size:12.5px;letter-spacing:.02em;
  padding:4px 12px;border-radius:999px;
  background:var(--card);border:1px solid var(--line);color:var(--sub);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
a.tag:hover{border-color:var(--lime);color:var(--ink);background:var(--lime-soft);}

/* ---------- sidebar ---------- */
.side{display:flex;flex-direction:column;gap:22px;}
.side-card{
  background:var(--card);border-radius:var(--r-card);
  box-shadow:var(--shadow);padding:22px;
}
.side-title{
  font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--ink);margin-bottom:14px;text-transform:none;
}
.side-nav{display:flex;flex-direction:column;gap:2px;}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 12px;border-radius:10px;
  font-size:14.5px;color:var(--sub);
  transition:background .18s ease,color .18s ease;
}
.side-nav a::after{content:"›";font-size:16px;color:var(--weak);transition:color .18s ease,transform .18s ease;}
.side-nav a:hover{background:var(--lime-soft);color:var(--ink);}
.side-nav a:hover::after{color:var(--ink);transform:translateX(2px);}
.side-nav a.is-current{background:rgba(200,240,60,.28);color:var(--ink);font-weight:600;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.side-cta{padding:0;overflow:hidden;background:var(--card);}
.side-cta img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-card) var(--r-card) 0 0;background:var(--paper);
}
.side-cta-body{padding:20px 22px 24px;}
.side-cta-body h3{font-size:17px;font-weight:700;color:var(--ink);line-height:1.5;}
.side-cta-body p{font-size:14px;color:var(--sub);margin:8px 0 16px;line-height:1.75;}
@media (max-width:1023.98px){
  .side{order:-1;}
  .side-card{padding:18px;}
  .side-nav{
    flex-direction:row;flex-wrap:nowrap;overflow-x:auto;gap:8px;
    padding-bottom:6px;scrollbar-width:thin;
  }
  .side-nav a{
    flex:0 0 auto;white-space:nowrap;
    border:1px solid var(--line);border-radius:999px;padding:7px 16px;font-size:13.5px;
  }
  .side-nav a::after{display:none;}
  .tag-cloud{
    flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;scrollbar-width:thin;
  }
  .tag{flex:0 0 auto;}
  .side-cta{display:none;}
}

/* ---------- faq ---------- */
.faq-section{background:var(--card);padding:56px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.faq-wrap{max-width:920px;}
.faq-list{margin-top:28px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:18px 0;background:transparent;border:0;cursor:pointer;text-align:left;
  transition:color .18s ease;
}
.faq-num{
  flex:0 0 auto;width:28px;height:28px;border-radius:8px;
  background:var(--lime);color:var(--ink);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
  display:inline-flex;align-items:center;justify-content:center;
}
.faq-text{flex:1 1 auto;font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;}
.faq-icon{position:relative;flex:0 0 auto;width:18px;height:18px;transition:transform .18s ease;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;transition:opacity .18s ease;}
.faq-item.open .faq-icon{transform:rotate(180deg);}
.faq-item.open .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .18s ease;}
.faq-a p{
  font-size:15px;line-height:1.8;color:var(--sub);
  max-width:720px;padding:0 0 20px 42px;
}
.faq-item.open .faq-a{max-height:360px;}
.faq-q:hover .faq-text{color:var(--ink-deep);}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;background:var(--ink-deep);color:var(--paper);
  overflow:hidden;padding:48px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.22;
}
.cta-band .container{position:relative;z-index:1;}
.cta-inner{display:grid;gap:22px;}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:700;color:#fff;}
.cta-band p{font-size:15px;line-height:1.85;color:#C8D6CE;margin-top:12px;max-width:48em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
@media (min-width:1024px){
  .cta-band{padding:64px 0;}
  .cta-inner{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:48px;}
}

/* ---------- footer ---------- */
.site-foot{background:var(--ink-deep);color:#C8D6CE;padding:56px 0 32px;}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px;}
.foot-brand{
  display:inline-flex;align-items:center;gap:8px;
  font-size:19px;font-weight:800;color:var(--paper);letter-spacing:.01em;
}
.foot-brand:hover{color:#fff;}
.foot-desc{font-size:14px;line-height:1.85;color:#A9BAB2;margin-top:14px;max-width:32em;}
.foot-title{font-size:14px;font-weight:600;color:var(--lime);margin-bottom:14px;letter-spacing:.04em;}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col p{font-size:14.5px;line-height:1.85;color:#C8D6CE;margin-bottom:8px;}
.foot-col a{color:#C8D6CE;font-size:15px;transition:color .18s ease;}
.foot-col a:hover{color:var(--paper);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--lime);}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#8FA398;
}
@media (min-width:640px){ .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
@media (min-width:1024px){
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
  .site-foot{padding:56px 0 32px;}
}

/* ---------- mobile tabbar ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;align-items:stretch;justify-content:space-around;
  height:58px;padding-bottom:env(safe-area-inset-bottom);
  background:var(--card);border-top:1px solid var(--line);
  box-shadow:0 -6px 22px rgba(12,59,46,.06);
}
.tab-item{
  flex:1 1 0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:2px;font-size:11px;color:var(--weak);text-decoration:none;
  transition:color .18s ease;
}
.tab-item svg{width:23px;height:23px;stroke-width:1.8;}
.tab-item span{padding:2px 14px;border-radius:999px;line-height:1.4;transition:background .18s ease;}
.tab-item.active{color:var(--ink);font-weight:600;}
.tab-item.active span{background:var(--lime);color:var(--ink);}
.tab-item:hover{color:var(--ink);}
@media (min-width:1024px){
  .tabbar{display:none;}
  body{padding-bottom:0;}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .btn:hover,.kb-item:hover{transform:none !important;}
}