/* roulang page: index */
:root{
  --brand-50:#EEFBF3;
  --brand-100:#D6F5E3;
  --brand-300:#7BE0A6;
  --brand-500:#17B978;
  --brand-600:#0E9A63;
  --brand-700:#08774D;
  --accent-300:#FFC24B;
  --accent-500:#FF7A29;
  --accent-600:#E85F13;
  --ink-900:#0E1A16;
  --ink-700:#2A3A34;
  --ink-500:#5C6E67;
  --ink-300:#9AA9A2;
  --line:#E3EAE5;
  --bg:#F5F8F4;
  --surface:#FFFFFF;
  --surface-2:#EBF3ED;
  --danger:#E14A3B;
  --info:#2F80ED;
  --grad-brand:linear-gradient(118deg,#8FE04F 0%,#17B978 52%,#0E9A63 100%);
  --grad-warm:linear-gradient(120deg,#FFC24B 0%,#FF7A29 100%);
  --radius-card:22px;
  --radius-inner:16px;
  --radius-img:18px;
  --radius-input:14px;
  --shadow-1:0 1px 2px rgba(14,26,22,.05);
  --shadow-2:0 14px 34px -14px rgba(14,26,22,.16);
  --shadow-3:0 22px 48px -18px rgba(14,26,22,.22);
  --container:1200px;
  --font-cn:"PingFang SC","HarmonyOS Sans","MiSans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","Space Grotesk","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;position:relative;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
::selection{background:var(--brand-300);color:var(--ink-900);}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%;}
.section{padding:96px 0;}
.section--tight{padding:56px 0;}
.section--alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.2px;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease,border-color .2s ease,opacity .2s ease;
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;flex:none;transition:transform .22s ease;}
.btn-primary{
  background:var(--grad-brand);background-size:160% 100%;background-position:0% 50%;
  color:#fff;box-shadow:0 10px 24px -12px rgba(14,154,99,.75);
}
.btn-primary:hover{background-position:100% 50%;transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(14,154,99,.85);}
.btn-primary:hover svg{transform:translateX(3px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 14px -10px rgba(14,154,99,.8);}
.btn-outline{
  background:var(--surface);color:var(--ink-900);border:1px solid var(--line);
}
.btn-outline:hover{border-color:rgba(23,185,120,.5);color:var(--brand-700);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-outline:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-white{background:#fff;color:var(--ink-900);box-shadow:var(--shadow-2);}
.btn-white:hover{transform:translateY(-1px);box-shadow:var(--shadow-3);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand-700);
  background-image:linear-gradient(var(--brand-500),var(--brand-500));
  background-repeat:no-repeat;background-size:0% 2px;background-position:0 100%;
  transition:background-size .25s ease,color .2s ease;
  padding-bottom:2px;
}
.text-link:hover{background-size:100% 2px;color:var(--brand-600);}
.text-link svg{width:14px;height:14px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.nav{display:flex;align-items:center;gap:24px;height:68px;}
.logo{display:flex;align-items:center;gap:10px;flex:none;}
.logo-mark{width:34px;height:34px;border-radius:11px;background:var(--grad-brand);display:grid;place-items:center;box-shadow:0 8px 18px -10px rgba(14,154,99,.9);}
.logo-mark svg{width:19px;height:19px;stroke:#fff;fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;}
.logo-text{font-size:18px;font-weight:700;color:var(--ink-900);letter-spacing:.4px;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  display:inline-flex;align-items:center;height:68px;padding:0 14px;font-size:14.5px;font-weight:500;color:var(--ink-700);
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:2px;border-radius:2px;
  background:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-700);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.command-search{
  display:flex;align-items:center;gap:8px;width:250px;height:40px;padding:0 12px;
  background:var(--surface-2);border:1px solid transparent;border-radius:999px;transition:border-color .2s ease,background .2s ease;
}
.command-search:focus-within{background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(23,185,120,.14);}
.command-search svg{width:15px;height:15px;stroke:var(--ink-500);fill:none;stroke-width:2;flex:none;}
.command-search input{border:none;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink-900);}
.command-search input::placeholder{color:var(--ink-300);}
.kbd{
  font-family:var(--font-num);font-size:11.5px;font-weight:600;color:var(--ink-500);
  background:#fff;border:1px solid var(--line);border-radius:8px;padding:2px 6px;flex:none;
}
.burger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;}
.burger span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

.drawer{
  position:fixed;inset:0;z-index:120;background:var(--surface);display:none;flex-direction:column;padding:20px 20px 28px;
}
.drawer.is-open{display:flex;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;font-size:20px;color:var(--ink-700);}
.drawer-nav{display:flex;flex-direction:column;gap:2px;padding:18px 0;overflow:auto;}
.drawer-nav a{font-size:18px;font-weight:600;color:var(--ink-900);padding:14px 4px;border-bottom:1px solid var(--line);}
.drawer-nav a:hover{color:var(--brand-700);}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;padding:80px 0 72px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(560px 320px at 12% 18%,rgba(23,185,120,.12),transparent 70%),
    radial-gradient(520px 300px at 88% 78%,rgba(255,122,41,.12),transparent 70%),
    linear-gradient(180deg,rgba(245,248,244,.94),rgba(245,248,244,.98));
}
.hero::after{
  content:"";position:absolute;inset:0;opacity:.35;
  background-image:linear-gradient(rgba(14,26,22,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(14,26,22,.05) 1px,transparent 1px);
  background-size:48px 48px;
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:6fr 5fr;gap:48px;align-items:center;}
.pill{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;border-radius:999px;
  background:var(--surface-2);color:var(--brand-700);font-size:13px;font-weight:600;letter-spacing:.3px;
}
.pill i{width:7px;height:7px;border-radius:50%;background:var(--brand-500);display:block;}
.hero h1{
  margin:20px 0 16px;font-size:42px;line-height:1.25;font-weight:800;letter-spacing:-.5px;color:var(--ink-900);
}
.hero h1 em{font-style:normal;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{font-size:16.5px;line-height:1.9;color:var(--ink-500);max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-media{position:relative;}
.hero-media .frame{
  border-radius:26px;overflow:hidden;box-shadow:var(--shadow-2);background:var(--surface-2);
  border:1px solid rgba(255,255,255,.7);
}
.hero-media img{width:100%;height:400px;object-fit:cover;transition:transform .5s ease;}
.hero-media:hover img{transform:scale(1.03);}
.hero-media .float-badge{
  position:absolute;right:16px;bottom:16px;background:rgba(14,26,22,.92);color:#fff;border-radius:16px;
  padding:12px 16px;box-shadow:var(--shadow-2);backdrop-filter:blur(2px);
}
.float-badge strong{display:block;font-family:var(--font-num);font-size:20px;font-weight:700;color:var(--brand-300);line-height:1.2;}
.float-badge span{font-size:12.5px;color:rgba(255,255,255,.72);}

/* ============ 数据徽章条 ============ */
.stats-strip{margin-top:52px;position:relative;z-index:2;}
.stats-row{
  display:grid;grid-template-columns:repeat(4,1fr);background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;
}
.stat{padding:22px 24px;display:flex;flex-direction:column;gap:2px;border-right:1px solid var(--line);transition:background .25s ease;}
.stat:last-child{border-right:none;}
.stat:hover{background:var(--brand-50);}
.stat-num{font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--brand-600);font-variant-numeric:tabular-nums;line-height:1.25;}
.stat-label{font-size:13.5px;color:var(--ink-500);}

/* ============ 通用板块标题 ============ */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:1.4px;text-transform:uppercase;color:var(--brand-600);font-family:var(--font-num);}
.section-title{font-size:28px;line-height:1.3;font-weight:700;color:var(--ink-900);margin-top:8px;letter-spacing:-.3px;}
.section-desc{margin-top:10px;font-size:15.5px;color:var(--ink-500);max-width:640px;}

/* ============ 合集目录卡 ============ */
.collection{display:flex;flex-direction:column;gap:16px;}
.collection-card{
  display:grid;grid-template-columns:96px 1fr auto;align-items:center;gap:24px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 28px;box-shadow:var(--shadow-1);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.collection-card:hover{transform:translateX(6px);border-color:rgba(23,185,120,.28);box-shadow:var(--shadow-3);}
.collection-card:nth-child(even):hover{transform:translateX(6px);}
.cc-index{font-family:var(--font-num);font-size:40px;font-weight:700;color:var(--brand-300);line-height:1;font-variant-numeric:tabular-nums;}
.cc-body h3{font-size:19px;font-weight:600;color:var(--ink-900);line-height:1.45;}
.cc-body p{margin-top:6px;font-size:14.5px;color:var(--ink-500);line-height:1.8;}
.cc-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;
  background:var(--surface-2);color:var(--ink-500);font-size:12.5px;font-weight:500;
}
.tag--brand{background:var(--brand-50);color:var(--brand-700);}
.cc-arrow{
  width:46px;height:46px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;flex:none;
  transition:background .25s ease,border-color .25s ease,transform .25s ease;background:var(--surface);
}
.cc-arrow svg{width:17px;height:17px;stroke:var(--brand-700);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:stroke .25s ease;}
.collection-card:hover .cc-arrow{background:var(--grad-brand);border-color:transparent;transform:translateX(4px);}
.collection-card:hover .cc-arrow svg{stroke:#fff;}

/* ============ 精选条目 ============ */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;}
.feature-main{
  position:relative;border-radius:var(--radius-card);overflow:hidden;background:var(--ink-900);
  min-height:420px;display:flex;align-items:flex-end;box-shadow:var(--shadow-2);border:1px solid var(--line);
}
.feature-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s ease;opacity:.92;}
.feature-main::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,26,22,.12) 0%,rgba(14,26,22,.78) 100%);}
.feature-main:hover img{transform:scale(1.04);}
.feature-main .fm-body{position:relative;z-index:2;padding:34px;color:#fff;}
.fm-body h3{font-size:22px;font-weight:700;line-height:1.4;margin-top:12px;}
.fm-body p{margin-top:10px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.78);max-width:460px;}
.fm-meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:16px;font-size:13px;color:rgba(255,255,255,.66);}
.badge-solid{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--grad-brand);color:#fff;font-size:12.5px;font-weight:600;}
.badge-warm{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--grad-warm);color:#fff;font-size:12.5px;font-weight:600;}
.feature-side{display:flex;flex-direction:column;gap:16px;}
.mini-card{
  display:grid;grid-template-columns:112px 1fr;gap:16px;align-items:center;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-inner);padding:14px;box-shadow:var(--shadow-1);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.mini-card:hover{transform:translateY(-4px);border-color:rgba(23,185,120,.28);box-shadow:var(--shadow-2);}
.mini-card .thumb{border-radius:12px;overflow:hidden;background:var(--surface-2);}
.mini-card .thumb img{width:112px;height:78px;object-fit:cover;}
.mini-card h4{font-size:15.5px;font-weight:600;color:var(--ink-900);line-height:1.5;}
.mini-card .mini-meta{margin-top:6px;font-size:12.5px;color:var(--ink-500);display:flex;gap:10px;flex-wrap:wrap;}

/* ============ 最新信息 ============ */
.news-list{display:flex;flex-direction:column;gap:12px;}
.news-item{
  display:grid;grid-template-columns:96px 1fr auto;gap:22px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-inner);
  padding:16px 20px;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-item:hover{transform:translateY(-3px);border-color:rgba(23,185,120,.28);box-shadow:var(--shadow-2);}
.news-thumb{border-radius:12px;overflow:hidden;background:var(--surface-2);}
.news-thumb img{width:96px;height:72px;object-fit:cover;}
.news-body h3{font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.5;}
.news-body h3 a{transition:color .2s ease;}
.news-body h3 a:hover{color:var(--brand-700);}
.news-summary{margin-top:6px;font-size:14px;color:var(--ink-500);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:10px;font-size:12.5px;color:var(--ink-500);font-family:var(--font-num);}
.news-meta .cat{
  font-family:var(--font-cn);background:var(--brand-50);color:var(--brand-700);border-radius:999px;padding:2px 10px;font-weight:600;
}
.news-more{display:flex;justify-content:center;margin-top:32px;}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--surface);
  padding:52px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:12px;
}
.empty-state svg{width:44px;height:44px;stroke:var(--brand-300);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.empty-state p{font-size:15px;color:var(--ink-500);}

/* ============ 服务保障 ============ */
.assure-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.assure-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;
  box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.assure-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(23,185,120,.28);}
.assure-icon{width:46px;height:46px;border-radius:14px;background:var(--brand-50);display:grid;place-items:center;margin-bottom:16px;}
.assure-icon svg{width:22px;height:22px;stroke:var(--brand-600);fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.assure-card h3{font-size:18px;font-weight:600;color:var(--ink-900);}
.assure-card p{margin-top:10px;font-size:14.5px;line-height:1.85;color:var(--ink-500);}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start;}
.faq-col{display:flex;flex-direction:column;gap:16px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-inner);overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;}
.faq-item:hover{border-color:rgba(23,185,120,.3);box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  padding:20px 22px;font-size:16px;font-weight:600;color:var(--ink-900);
}
.faq-q .plus{
  width:26px;height:26px;flex:none;border-radius:50%;background:var(--surface-2);position:relative;
  transition:transform .2s ease,background .2s ease;
}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:var(--brand-700);border-radius:2px;}
.faq-q .plus::before{width:12px;height:2px;top:12px;left:7px;}
.faq-q .plus::after{width:2px;height:12px;top:7px;left:12px;}
.faq-item.is-open .plus{transform:rotate(45deg);background:var(--brand-100);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-700);}

/* ============ CTA ============ */
.cta-panel{
  position:relative;border-radius:26px;background:var(--ink-900);color:#fff;padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;width:420px;height:420px;right:-120px;top:-160px;border-radius:50%;
  background:var(--grad-brand);opacity:.22;filter:blur(10px);
}
.cta-panel::after{
  content:"";position:absolute;inset:0;border-radius:26px;padding:1px;
  background:var(--grad-brand);opacity:.5;
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:620px;}
.cta-copy h2{font-size:26px;font-weight:700;line-height:1.35;}
.cta-copy p{margin-top:12px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.72);}
.cta-buttons{position:relative;z-index:2;display:flex;gap:12px;flex:none;}
.cta-buttons .btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.32);}
.cta-buttons .btn-outline:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.6);}

/* ============ 订阅表单 ============ */
.sub-form{display:flex;flex-direction:column;gap:10px;}
.sub-field label{display:block;font-size:13px;font-weight:600;color:var(--ink-300);margin-bottom:8px;}
.sub-input-row{display:flex;gap:10px;}
.sub-input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--radius-input);border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);color:#fff;outline:none;font-size:14.5px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-input::placeholder{color:rgba(255,255,255,.36);}
.sub-input:focus{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(23,185,120,.14);}
.sub-input.is-error{border-color:var(--danger);}
.sub-hint{font-size:13px;color:var(--ink-300);}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:#fff;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;padding:72px 0 48px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--ink-300);max-width:280px;}
.socials{display:flex;gap:10px;margin-top:20px;}
.social-btn{width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.16);display:grid;place-items:center;transition:background .2s ease,border-color .2s ease,transform .2s ease;}
.social-btn svg{width:17px;height:17px;stroke:var(--ink-300);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:stroke .2s ease;}
.social-btn:hover{background:rgba(23,185,120,.18);border-color:rgba(23,185,120,.5);transform:translateY(-2px);}
.social-btn:hover svg{stroke:#fff;}
.footer-col h4{font-size:13px;font-weight:600;letter-spacing:1.2px;text-transform:uppercase;color:var(--ink-300);font-family:var(--font-num);}
.footer-col ul{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:var(--ink-300);transition:color .2s ease,transform .2s ease;display:inline-block;}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0;display:flex;align-items:center;justify-content:space-between;
  gap:16px;font-size:13px;color:var(--ink-300);flex-wrap:wrap;
}
.footer-bottom span{font-family:var(--font-num);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .section{padding:80px 0;}
  .hero h1{font-size:38px;}
  .hero-media img{height:360px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .command-search{display:none;}
  .burger{display:flex;}
  .nav{height:60px;}
  .nav-link{height:60px;}
  .hero{padding:64px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media img{height:300px;}
  .section{padding:72px 0;}
  .section-title{font-size:25px;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-main{min-height:340px;}
  .assure-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 40px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .hero{padding:48px 0 44px;}
  .hero h1{font-size:27px;margin:16px 0 14px;}
  .hero-sub{font-size:15px;}
  .hero-media img{height:240px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
  .stats-row{grid-template-columns:1fr 1fr;}
  .stat:nth-child(2n){border-right:none;}
  .stat:nth-child(n+3){border-top:1px solid var(--line);}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .section-title{font-size:22px;}
  .collection-card{grid-template-columns:56px 1fr;gap:16px;padding:20px;}
  .cc-index{font-size:28px;}
  .cc-arrow{grid-column:2;justify-self:start;width:40px;height:40px;}
  .collection-card:hover{transform:translateY(-3px);}
  .mini-card{grid-template-columns:96px 1fr;}
  .mini-card .thumb img{width:96px;height:70px;}
  .news-item{grid-template-columns:1fr;gap:14px;padding:16px;}
  .news-thumb img{width:100%;height:160px;}
  .assure-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:28px;gap:22px;}
  .cta-copy h2{font-size:21px;}
  .cta-buttons{flex-direction:column;width:100%;}
  .cta-buttons .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:420px){
  .hero h1{font-size:24px;}
  .stat{padding:18px;}
  .stat-num{font-size:20px;}
  .collection-card{padding:18px;}
  .sub-input-row{flex-direction:column;}
  .sub-input-row .btn{width:100%;}
}

/* roulang page: article */
:root{
  --brand-50:#EEFBF3;
  --brand-300:#7BE0A6;
  --brand-500:#17B978;
  --brand-600:#0E9A63;
  --brand-700:#08774D;
  --accent-300:#FFC24B;
  --accent-500:#FF7A29;
  --accent-600:#E85F13;
  --ink-900:#0E1A16;
  --ink-700:#2A3A34;
  --ink-500:#5C6E67;
  --ink-300:#9AA9A2;
  --line:#E3EAE5;
  --bg:#F5F8F4;
  --surface:#FFFFFF;
  --surface-2:#EBF3ED;
  --danger:#E14A3B;
  --info:#2F80ED;
  --grad-brand:linear-gradient(118deg,#8FE04F 0%,#17B978 52%,#0E9A63 100%);
  --grad-warm:linear-gradient(120deg,#FFC24B 0%,#FF7A29 100%);
  --shadow-1:0 1px 2px rgba(14,26,22,.05);
  --shadow-2:0 14px 34px -14px rgba(14,26,22,.16);
  --shadow-3:0 22px 48px -18px rgba(14,26,22,.22);
  --r-lg:26px;
  --r-card:22px;
  --r-md:16px;
  --r-sm:14px;
  --container:1200px;
  --font-cn:"PingFang SC","HarmonyOS Sans","MiSans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","Space Grotesk",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease;}
button{font:inherit;color:inherit;border:none;background:none;cursor:pointer;}
input{font:inherit;color:inherit;}
svg{width:1em;height:1em;display:block;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.2px;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background-position .35s ease,border-color .2s ease,color .2s ease,opacity .2s ease;
}
.btn svg{width:16px;height:16px;transition:transform .2s ease;}
.btn:hover svg{transform:translateX(3px);}
.btn:active{transform:translateY(1px);}
.btn-primary{
  background-image:var(--grad-brand);background-size:160% 100%;background-position:0 0;
  color:#fff;box-shadow:var(--shadow-2);
}
.btn-primary:hover{background-position:12% 0;transform:translateY(-1px);box-shadow:var(--shadow-3);}
.btn-ghost{
  border:1px solid var(--line);background:var(--surface);color:var(--ink-900);
}
.btn-ghost:hover{border-color:rgba(23,185,120,.45);color:var(--brand-700);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-light{background:#fff;color:var(--ink-900);font-weight:600;}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 18px 34px -18px rgba(0,0,0,.5);}
.btn-outline-light{border:1px solid rgba(255,255,255,.42);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.7);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.nav{display:flex;align-items:center;gap:20px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:11px;
  background-image:var(--grad-brand);
  display:grid;place-items:center;
  box-shadow:0 10px 20px -12px rgba(14,154,99,.9);
}
.logo-mark svg{width:20px;height:20px;stroke:#fff;stroke-width:2.4;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.logo-text{font-size:18px;font-weight:700;color:var(--ink-900);letter-spacing:.5px;}
.nav-links{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;padding:8px 12px;border-radius:999px;
  font-size:14.5px;font-weight:500;color:var(--ink-700);
}
.nav-link:hover{color:var(--brand-700);background:var(--surface-2);}
.nav-link.is-active{color:var(--brand-600);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--brand-500);
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.command-search{
  display:flex;align-items:center;gap:8px;width:262px;height:40px;
  padding:0 8px 0 13px;border:1px solid var(--line);border-radius:999px;
  background:var(--surface-2);transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.command-search:focus-within{border-color:var(--brand-500);background:#fff;box-shadow:0 0 0 4px rgba(23,185,120,.14);}
.command-search svg{width:16px;height:16px;color:var(--ink-500);stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;flex-shrink:0;}
.command-search input{flex:1;min-width:0;height:100%;border:none;background:transparent;font-size:13.5px;outline:none;}
.command-search input::placeholder{color:var(--ink-300);}
.kbd{
  flex-shrink:0;padding:2px 7px;border:1px solid var(--line);border-radius:999px;
  background:#fff;font-family:var(--font-num);font-size:11px;color:var(--ink-500);
}
.text-link{
  display:inline-flex;align-items:center;gap:5px;
  font-size:14px;font-weight:500;color:var(--ink-700);
  background-image:linear-gradient(var(--brand-500),var(--brand-500));
  background-repeat:no-repeat;background-position:0 100%;background-size:0 2px;
  padding-bottom:2px;transition:background-size .25s ease,color .2s ease;
}
.text-link svg{width:15px;height:15px;}
.text-link:hover{color:var(--brand-700);background-size:100% 2px;}
.burger{
  display:none;width:38px;height:38px;border:1px solid var(--line);border-radius:12px;
  background:var(--surface);position:relative;place-items:center;
}
.burger span{display:block;width:16px;height:2px;border-radius:2px;background:var(--ink-900);position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .25s ease,top .25s ease;}
.burger span::before{top:-5px;}
.burger span::after{top:5px;}

/* ============ 面包屑 ============ */
.crumb{padding:18px 0 6px;}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);}
.crumb li{display:inline-flex;align-items:center;gap:8px;max-width:100%;}
.crumb li:not(:last-child)::after{content:"/";color:var(--ink-300);}
.crumb a:hover{color:var(--brand-600);}
.crumb .current{color:var(--ink-900);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:52vw;}

/* ============ 文章头 ============ */
.article-hero{padding:26px 0 34px;border-bottom:1px solid var(--line);background:var(--surface);}
.article-hero-inner{max-width:820px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  height:30px;padding:0 14px;border-radius:999px;
  background:var(--surface-2);color:var(--brand-700);
  font-size:13px;font-weight:600;letter-spacing:.3px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500);}
.article-title{
  margin-top:16px;
  font-size:clamp(26px,4vw,42px);
  line-height:1.28;font-weight:800;letter-spacing:-.5px;color:var(--ink-900);
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:20px;font-size:13.5px;color:var(--ink-500);}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.meta-pill{padding:3px 12px;border-radius:999px;background:var(--brand-50);color:var(--brand-700);font-weight:600;font-size:12.5px;}

/* ============ 正文 ============ */
.article-shell{padding:48px 0 24px;}
.article-body{
  max-width:760px;margin:0 auto;
  font-size:17px;line-height:1.9;color:var(--ink-700);
  overflow-wrap:break-word;
}
.article-body h2{
  margin:44px 0 16px;font-size:clamp(22px,2.4vw,28px);line-height:1.35;
  font-weight:700;color:var(--ink-900);letter-spacing:-.2px;
}
.article-body h3{margin:32px 0 12px;font-size:19px;line-height:1.45;font-weight:600;color:var(--ink-900);}
.article-body h4{margin:26px 0 10px;font-size:16.5px;font-weight:600;color:var(--ink-900);}
.article-body p{margin:0 0 20px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:4px;}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;
  background-image:var(--grad-brand);
}
.article-body ol{counter-reset:item;}
.article-body ol li{counter-increment:item;padding-left:30px;}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:.16em;
  width:20px;height:20px;border-radius:50%;background:var(--brand-50);color:var(--brand-700);
  font-family:var(--font-num);font-size:12px;font-weight:700;display:grid;place-items:center;
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;
  border-left:3px solid var(--brand-500);
  background:var(--surface-2);border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--ink-700);font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-md);margin:24px auto;box-shadow:var(--shadow-1);}
.article-body figure{margin:24px 0;}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13.5px;color:var(--ink-500);}
.article-body a{color:var(--brand-600);font-weight:500;border-bottom:1px solid rgba(23,185,120,.35);}
.article-body a:hover{color:var(--brand-700);border-bottom-color:var(--brand-700);}
.article-body strong{color:var(--ink-900);font-weight:700;}
.article-body code{
  padding:2px 7px;border-radius:6px;background:var(--surface-2);
  font-family:var(--font-num);font-size:14.5px;color:var(--brand-700);
}
.article-body hr{margin:36px 0;border:none;border-top:1px solid var(--line);}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);}
.article-body th{font-weight:600;color:var(--ink-900);background:var(--surface-2);font-size:14px;}
.article-body tr:hover td{background:#FAFCFA;}
.article-empty{
  max-width:760px;margin:0 auto;padding:56px 32px;text-align:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);
}
.article-empty h2{font-size:22px;font-weight:700;color:var(--ink-900);margin-bottom:12px;}
.article-empty p{margin-bottom:24px;color:var(--ink-500);font-size:15.5px;}

/* ============ 标签行 ============ */
.tag-row{
  max-width:760px;margin:36px auto 0;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
}
.tag-row .tag-label{font-size:13px;color:var(--ink-500);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 15px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);
  font-size:13.5px;color:var(--ink-700);transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.tag:hover{border-color:rgba(23,185,120,.4);color:var(--brand-700);transform:translateY(-2px);}

/* ============ 相关推荐 ============ */
.section{padding:64px 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:var(--ink-900);letter-spacing:-.3px;line-height:1.3;}
.section-head p{margin-top:8px;font-size:14.5px;color:var(--ink-500);}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);border-color:rgba(23,185,120,.28);}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-thumb::after{content:"";position:absolute;inset:0;background:rgba(14,26,22,.12);}
.rel-body{padding:22px 24px 26px;}
.rel-body h3{font-size:17.5px;line-height:1.45;font-weight:600;color:var(--ink-900);}
.rel-body p{margin-top:10px;font-size:14px;color:var(--ink-500);line-height:1.75;}
.rel-meta{margin-top:16px;display:flex;align-items:center;gap:14px;font-size:13px;color:var(--ink-500);font-family:var(--font-num);}

/* ============ 返回入口 ============ */
.back-actions{
  max-width:760px;margin:0 auto;padding:8px 0 4px;
  display:flex;flex-wrap:wrap;gap:14px;
}

/* ============ CTA 区 ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  background:var(--ink-900);
  padding:48px 52px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);padding:1px;
  background-image:var(--grad-brand);
  -webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  pointer-events:none;opacity:.7;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,185,120,.32),transparent 68%);pointer-events:none;
}
.cta-text{position:relative;z-index:1;max-width:560px;}
.cta-text h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;color:#fff;line-height:1.35;letter-spacing:-.2px;}
.cta-text p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.72);line-height:1.8;}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:64px 0 26px;margin-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:300px;}
.socials{display:flex;gap:10px;margin-top:20px;}
.social-btn{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.72);
  transition:border-color .2s ease,color .2s ease,transform .2s ease,background-color .2s ease;
}
.social-btn svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.social-btn:hover{border-color:var(--brand-500);color:#fff;background:rgba(23,185,120,.16);transform:translateY(-2px);}
.footer-col h4{
  font-size:13px;font-weight:600;letter-spacing:1.2px;text-transform:uppercase;
  color:rgba(255,255,255,.5);margin-bottom:18px;
}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul a{font-size:14px;color:var(--ink-300);display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-col ul a:hover{color:#fff;transform:translateX(2px);}
.sub-field label{display:block;font-size:13px;font-weight:600;color:rgba(255,255,255,.5);margin-bottom:12px;letter-spacing:.6px;}
.sub-input-row{display:flex;gap:10px;}
.sub-input{
  flex:1;min-width:0;height:48px;padding:0 16px;border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:#fff;
  font-size:14px;outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-input::placeholder{color:rgba(255,255,255,.4);}
.sub-input:focus{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(23,185,120,.16);}
.sub-form .btn{height:48px;padding:0 20px;font-size:14px;}
.sub-hint{display:block;margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.45);}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 22px;}
  .command-search{width:210px;}
  .rel-grid{gap:20px;}
}
@media (max-width:1023px){
  .nav{gap:14px;}
  .nav-links{gap:0;}
  .nav-link{padding:8px 9px;font-size:14px;}
  .command-search{display:none;}
  .section{padding:52px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:40px 36px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .nav{height:60px;}
  .nav-actions .text-link,.nav-actions .btn-primary{display:none;}
  .burger{display:grid;}
  .nav-links{
    position:fixed;left:0;right:0;top:60px;bottom:0;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:22px 18px 40px;background:#fff;
    border-top:1px solid var(--line);
    transform:translateX(100%);opacity:0;visibility:hidden;
    transition:transform .28s ease,opacity .28s ease,visibility .28s;
    overflow-y:auto;z-index:70;
  }
  body.menu-open .nav-links{transform:none;opacity:1;visibility:visible;}
  body.menu-open{overflow:hidden;}
  .nav-link{font-size:17px;font-weight:600;padding:14px 12px;border-radius:14px;}
  .nav-link.is-active{background:var(--brand-50);}
  .nav-link.is-active::after{display:none;}
  .crumb .current{max-width:60vw;}
  .article-hero{padding:18px 0 26px;}
  .meta-row{gap:8px 14px;}
  .article-shell{padding:32px 0 12px;}
  .article-body{font-size:16.5px;line-height:1.88;}
  .article-body h2{margin-top:34px;}
  .rel-grid{grid-template-columns:1fr;}
  .section{padding:44px 0;}
  .back-actions .btn{flex:1;}
  .cta-band{padding:34px 24px;border-radius:var(--r-card);}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding:48px 0 22px;margin-top:56px;}
  .sub-input-row{flex-direction:column;}
  .sub-form .btn{width:100%;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:420px){
  .container{padding:0 15px;}
  .article-body{font-size:16px;}
  .section-head h2{font-size:21px;}
  .rel-body{padding:18px 18px 22px;}
  .cta-band{padding:28px 18px;}
}

/* roulang page: category1 */
:root{
  --brand-50:#EEFBF3;
  --brand-300:#7BE0A6;
  --brand-500:#17B978;
  --brand-600:#0E9A63;
  --brand-700:#08774D;
  --accent-300:#FFC24B;
  --accent-500:#FF7A29;
  --accent-600:#E85F13;
  --ink-900:#0E1A16;
  --ink-700:#2A3A34;
  --ink-500:#5C6E67;
  --ink-300:#9AA9A2;
  --line:#E3EAE5;
  --bg:#F5F8F4;
  --surface:#FFFFFF;
  --surface-2:#EBF3ED;
  --ok:#17B978;
  --warn:#FF7A29;
  --err:#E14A3B;
  --info:#2F80ED;
  --grad-brand:linear-gradient(118deg,#8FE04F 0%,#17B978 52%,#0E9A63 100%);
  --grad-warm:linear-gradient(120deg,#FFC24B 0%,#FF7A29 100%);
  --shadow-1:0 1px 2px rgba(14,26,22,.05);
  --shadow-2:0 14px 34px -14px rgba(14,26,22,.16);
  --shadow-3:0 22px 48px -18px rgba(14,26,22,.22);
  --radius-lg:22px;
  --radius-md:16px;
  --radius-img:18px;
  --radius-pill:999px;
  --font-base:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans","MiSans","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Space Grotesk","PingFang SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
svg{display:block;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
::selection{background:rgba(23,185,120,.22);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.nav{display:flex;align-items:center;gap:20px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px -8px rgba(14,154,99,.75);
}
.logo-mark svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;}
.logo-text{font-size:18px;font-weight:700;color:var(--ink-900);letter-spacing:-.2px;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-700);
  border-radius:var(--radius-pill);
  transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--ink-900);background:var(--surface-2);}
.nav-link:active{transform:translateY(1px);}
.nav-link.is-active{color:var(--brand-700);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--grad-brand);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:264px;height:40px;padding:0 10px 0 14px;
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease;
}
.command-search:focus-within{
  background:#fff;border-color:var(--brand-500);
  box-shadow:0 0 0 4px rgba(23,185,120,.14);
}
.command-search svg{width:16px;height:16px;fill:none;stroke:var(--ink-300);stroke-width:2;stroke-linecap:round;}
.command-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink-900);line-height:1;
}
.command-search input::placeholder{color:var(--ink-300);}
.kbd{
  font-family:var(--font-num);
  font-size:11px;color:var(--ink-500);
  background:#fff;border:1px solid var(--line);
  border-radius:6px;padding:1px 6px;line-height:1.5;
}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:500;color:var(--ink-700);
  background-image:linear-gradient(var(--brand-500),var(--brand-500));
  background-repeat:no-repeat;background-size:0 2px;background-position:0 100%;
  padding-bottom:2px;
  transition:background-size .24s ease,color .18s ease;
}
.text-link svg{width:15px;height:15px;}
.text-link:hover{color:var(--brand-700);background-size:100% 2px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .22s ease,background-color .2s ease,border-color .2s ease,color .2s ease,background-position .3s ease;
}
.btn svg{width:16px;height:16px;flex-shrink:0;}
.btn-primary{
  background-image:var(--grad-brand);
  background-size:130% 130%;
  background-position:0 0;
  color:#fff;
  box-shadow:0 10px 22px -14px rgba(14,154,99,.85);
}
.btn-primary:hover{background-position:10% 0;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-900);}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:#fff;color:var(--ink-900);}
.btn-light:hover{transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.32);color:#fff;}
.btn-outline-light:hover{border-color:var(--brand-300);color:var(--brand-300);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn:disabled{opacity:.45;pointer-events:none;}
.burger{
  display:none;width:44px;height:40px;border:1px solid var(--line);
  border-radius:12px;background:#fff;cursor:pointer;
  position:relative;
}
.burger span,.burger span::before,.burger span::after{
  content:"";position:absolute;left:50%;width:18px;height:2px;border-radius:2px;
  background:var(--ink-900);transform:translateX(-50%);
  transition:transform .22s ease,opacity .22s ease;
}
.burger span{top:50%;margin-top:-1px;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.burger[aria-expanded="true"] span{background:transparent;}
.burger[aria-expanded="true"] span::before{transform:translateX(-50%) rotate(45deg);top:0;}
.burger[aria-expanded="true"] span::after{transform:translateX(-50%) rotate(-45deg);top:0;}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:#fff;
  display:flex;flex-direction:column;
  padding:20px 20px 28px;
  transform:translateX(100%);
  visibility:hidden;
  transition:transform .3s cubic-bezier(.4,0,.2,1),visibility .3s;
}
.drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;}
.drawer-close svg{width:18px;height:18px;stroke:var(--ink-900);fill:none;stroke-width:2;stroke-linecap:round;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;padding:18px 0;overflow-y:auto;}
.drawer-nav a{
  font-size:18px;font-weight:600;color:var(--ink-900);
  padding:13px 12px;border-radius:14px;
  transition:background-color .18s ease,color .18s ease;
}
.drawer-nav a:hover,.drawer-nav a:focus-visible{background:var(--surface-2);color:var(--brand-700);}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px;padding-top:20px;border-top:1px solid var(--line);}

/* ---------- breadcrumb ---------- */
.crumb{padding:16px 0;font-size:13px;color:var(--ink-500);}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:var(--ink-300);}
.crumb a{transition:color .18s ease;}
.crumb a:hover{color:var(--brand-700);}
.crumb .current{color:var(--ink-900);font-weight:600;}

/* ---------- category hero ---------- */
.cat-hero{position:relative;overflow:hidden;padding:36px 0 64px;}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  opacity:.10;pointer-events:none;
}
.cat-hero::after{
  content:"";position:absolute;top:-140px;right:-120px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(23,185,120,.16) 0%,rgba(23,185,120,0) 68%);
  pointer-events:none;
}
.cat-hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:6fr 5fr;gap:48px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:var(--surface-2);color:var(--brand-700);
  font-size:13px;font-weight:600;letter-spacing:.3px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--brand-500);display:inline-block;}
.cat-hero h1{
  margin-top:20px;
  font-size:42px;line-height:1.25;font-weight:800;letter-spacing:-.5px;color:var(--ink-900);
}
.cat-hero h1 em{
  font-style:normal;
  background:var(--grad-brand);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-hero .lead{
  margin-top:18px;max-width:560px;
  font-size:16.5px;line-height:1.85;color:var(--ink-500);
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}
.stat{
  display:flex;flex-direction:column;justify-content:center;
  min-height:56px;padding:8px 20px;border-radius:var(--radius-pill);
  background:var(--ink-900);color:#fff;
}
.stat b{font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--brand-300);font-variant-numeric:tabular-nums;letter-spacing:.2px;}
.stat span{font-size:12px;color:rgba(255,255,255,.66);line-height:1.5;}
.stat-light{background:var(--surface-2);border:1px solid var(--line);}
.stat-light b{color:var(--ink-900);}
.stat-light span{color:var(--ink-500);}
.hero-media{position:relative;}
.hero-media .frame{
  position:relative;border-radius:26px;overflow:hidden;
  box-shadow:var(--shadow-2);background:var(--surface-2);
}
.hero-media .frame img{width:100%;height:376px;object-fit:cover;transition:transform .5s ease;}
.hero-media .frame:hover img{transform:scale(1.03);}
.hero-media .tag-on-image{
  position:absolute;right:18px;bottom:18px;
  display:flex;flex-direction:column;justify-content:center;
  padding:8px 18px;border-radius:var(--radius-pill);
  background:rgba(14,26,22,.88);backdrop-filter:blur(2px);
}
.hero-media .tag-on-image b{font-family:var(--font-num);font-size:15px;color:var(--brand-300);line-height:1.4;}
.hero-media .tag-on-image span{font-size:11.5px;color:rgba(255,255,255,.68);}

/* ---------- layout with toc ---------- */
.cat-body{padding:12px 0 0;}
.cat-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:48px;align-items:start;}
.toc{
  position:sticky;top:92px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:22px;
  box-shadow:var(--shadow-1);
}
.toc h2{font-size:13px;font-weight:600;letter-spacing:1.2px;color:var(--ink-500);text-transform:uppercase;padding:0 12px 12px;}
.toc ol{display:flex;flex-direction:column;gap:2px;}
.toc a{
  display:flex;align-items:center;gap:10px;
  padding:9px 12px;border-radius:12px;
  font-size:14.5px;color:var(--ink-500);
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.toc a em{
  font-family:var(--font-num);font-style:normal;font-size:12px;
  color:var(--brand-300);font-weight:700;font-variant-numeric:tabular-nums;
}
.toc a:hover{background:var(--surface-2);color:var(--brand-700);transform:translateX(2px);}
.toc a.is-current{background:var(--brand-50);color:var(--brand-700);font-weight:600;}
.toc a.is-current em{color:var(--brand-600);}
.toc-note{
  margin-top:16px;padding:14px 16px;border-radius:var(--radius-md);
  background:var(--surface-2);
  font-size:13px;line-height:1.7;color:var(--ink-500);
}

/* ---------- content sections ---------- */
.section-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:32px;
  box-shadow:var(--shadow-1);
  margin-bottom:24px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.section-card:hover{border-color:rgba(23,185,120,.28);box-shadow:var(--shadow-2);}
.section-head{display:flex;align-items:flex-start;gap:16px;}
.section-num{
  flex-shrink:0;width:38px;height:38px;border-radius:12px;
  background:var(--brand-50);color:var(--brand-700);
  font-family:var(--font-num);font-size:15px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.section-card h2{font-size:26px;line-height:1.3;font-weight:700;color:var(--ink-900);letter-spacing:-.3px;}
.section-card .sub{margin-top:6px;font-size:14px;color:var(--ink-500);}
.section-card p{margin-top:18px;font-size:16px;line-height:1.85;color:var(--ink-700);}
.section-card p:first-of-type{margin-top:20px;}

.tick-list{margin-top:20px;display:flex;flex-direction:column;gap:14px;}
.tick-list li{display:flex;gap:12px;font-size:15.5px;line-height:1.8;color:var(--ink-700);}
.tick-list li svg{
  flex-shrink:0;width:20px;height:20px;margin-top:7px;
  fill:none;stroke:var(--brand-500);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;
}
.tick-list li b{color:var(--ink-900);font-weight:600;}

.steps{margin-top:22px;display:flex;flex-direction:column;gap:16px;counter-reset:step;}
.steps li{
  display:flex;gap:16px;
  padding:18px 20px;
  background:var(--surface-2);
  border-radius:var(--radius-md);
  transition:transform .2s ease,box-shadow .2s ease;
}
.steps li:hover{transform:translateY(-2px);box-shadow:var(--shadow-1);}
.steps li::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--brand-600);
  flex-shrink:0;padding-top:2px;font-variant-numeric:tabular-nums;
}
.steps li span{font-size:15.5px;line-height:1.8;color:var(--ink-700);}
.steps li span b{color:var(--ink-900);font-weight:600;}

.note{
  margin-top:22px;padding:18px 20px 18px 22px;
  background:var(--surface-2);
  border-left:3px solid var(--brand-500);
  border-radius:0 var(--radius-md) var(--radius-md) 0;
  font-size:15px;line-height:1.8;color:var(--ink-700);
}
.note b{color:var(--ink-900);}

.check-grid{margin-top:22px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.check-item{
  padding:20px;border-radius:var(--radius-md);
  border:1px solid var(--line);background:#fff;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.check-item:hover{transform:translateY(-4px);border-color:rgba(23,185,120,.28);box-shadow:var(--shadow-2);}
.check-item h3{font-size:16px;font-weight:600;color:var(--ink-900);display:flex;align-items:center;gap:8px;}
.check-item h3 i{
  width:8px;height:8px;border-radius:50%;background:var(--accent-500);display:inline-block;flex-shrink:0;
}
.check-item p{margin-top:8px !important;font-size:14.5px;line-height:1.75;color:var(--ink-500);}

.flow-line{margin-top:22px;display:flex;flex-direction:column;gap:0;}
.flow-line li{
  position:relative;
  padding:0 0 22px 30px;
  font-size:15.5px;color:var(--ink-700);
}
.flow-line li::before{
  content:"";position:absolute;left:5px;top:9px;width:10px;height:10px;border-radius:50%;
  background:var(--brand-500);box-shadow:0 0 0 4px rgba(23,185,120,.16);
}
.flow-line li::after{
  content:"";position:absolute;left:9px;top:22px;bottom:2px;width:2px;background:var(--line);
}
.flow-line li:last-child{padding-bottom:0;}
.flow-line li:last-child::after{display:none;}
.flow-line li b{color:var(--ink-900);font-weight:600;}

/* ---------- FAQ ---------- */
.faq-block{padding:72px 0 0;}
.block-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;}
.block-head h2{font-size:28px;font-weight:700;color:var(--ink-900);letter-spacing:-.3px;}
.block-head p{margin-top:8px;font-size:15px;color:var(--ink-500);}
.faq-grid{margin-top:28px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-items:start;}
.faq-col{display:flex;flex-direction:column;gap:16px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-md);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(23,185,120,.28);box-shadow:var(--shadow-1);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 20px;
  font-size:16px;font-weight:600;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-700);}
.faq-item summary i{
  flex-shrink:0;width:22px;height:22px;position:relative;
  transition:transform .2s ease;
}
.faq-item summary i::before,.faq-item summary i::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--brand-600);border-radius:2px;
}
.faq-item summary i::before{width:12px;height:2px;transform:translate(-50%,-50%);}
.faq-item summary i::after{width:2px;height:12px;transform:translate(-50%,-50%);}
.faq-item[open] summary i{transform:rotate(45deg);}
.faq-item .answer{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-700);}

/* ---------- related categories ---------- */
.related{padding:72px 0 0;}
.mini-grid{margin-top:28px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.mini-card{
  display:flex;flex-direction:column;gap:12px;
  padding:24px;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.mini-card:hover{transform:translateY(-4px);border-color:rgba(23,185,120,.28);box-shadow:var(--shadow-3);}
.mini-card .mini-thumb{
  border-radius:var(--radius-md);overflow:hidden;background:var(--surface-2);
}
.mini-card .mini-thumb img{width:100%;height:132px;object-fit:cover;transition:transform .5s ease;}
.mini-card:hover .mini-thumb img{transform:scale(1.03);}
.mini-card h3{font-size:18px;font-weight:600;color:var(--ink-900);}
.mini-card p{font-size:14.5px;line-height:1.75;color:var(--ink-500);}
.mini-card .mini-more{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-700);
}
.mini-card .mini-more svg{width:15px;height:15px;transition:transform .2s ease;}
.mini-card:hover .mini-more svg{transform:translateX(4px);}

/* ---------- CTA ---------- */
.cta-wrap{padding:72px 0 96px;}
.cta-card{
  position:relative;overflow:hidden;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  padding:40px 44px;border-radius:26px;
  background:var(--ink-900);
  box-shadow:var(--shadow-2);
}
.cta-card::before{
  content:"";position:absolute;inset:0;padding:1px;border-radius:26px;
  background:var(--grad-brand);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  pointer-events:none;
}
.cta-card::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:380px;height:380px;
  background:radial-gradient(circle,rgba(23,185,120,.28) 0%,rgba(23,185,120,0) 70%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:620px;}
.cta-copy h2{font-size:26px;font-weight:700;color:#fff;letter-spacing:-.3px;}
.cta-copy p{margin-top:10px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.7);}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:320px;}
.socials{display:flex;gap:10px;margin-top:20px;}
.social-btn{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.14);
  transition:background-color .2s ease,border-color .2s ease,transform .2s ease;
}
.social-btn svg{width:17px;height:17px;fill:none;stroke:rgba(255,255,255,.72);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.social-btn:hover{background:rgba(23,185,120,.18);border-color:rgba(123,224,166,.5);transform:translateY(-2px);}
.social-btn:hover svg{stroke:#fff;}
.footer-col h4{
  font-size:13px;font-weight:600;letter-spacing:1.4px;
  color:rgba(255,255,255,.5);text-transform:uppercase;margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{
  display:inline-block;font-size:14px;color:var(--ink-300);
  transition:color .2s ease,transform .2s ease;
}
.footer-col ul a:hover{color:#fff;transform:translateX(2px);}
.sub-field{display:flex;flex-direction:column;gap:10px;}
.sub-field label{font-size:13px;font-weight:600;color:rgba(255,255,255,.7);}
.sub-input-row{display:flex;gap:10px;}
.sub-input{
  flex:1;min-width:0;height:48px;padding:0 16px;
  border-radius:14px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);
  color:#fff;font-size:14px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.sub-input::placeholder{color:rgba(255,255,255,.38);}
.sub-input:focus{border-color:var(--brand-500);background:rgba(255,255,255,.1);box-shadow:0 0 0 4px rgba(23,185,120,.14);}
.sub-input.is-error{border-color:var(--err);}
.sub-input-row .btn{height:48px;padding:0 20px;font-size:14px;}
.sub-hint{font-size:12.5px;color:rgba(255,255,255,.45);line-height:1.7;}
.sub-hint.is-error{color:#FF9A8C;}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0 26px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .cat-hero h1{font-size:38px;}
  .hero-media .frame img{height:336px;}
  .command-search{width:220px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .burger{display:inline-flex;align-items:center;justify-content:center;}
  .command-search{width:200px;}
  .cat-hero{padding:24px 0 48px;}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px;}
  .cat-hero h1{font-size:34px;}
  .hero-media .frame img{height:290px;}
  .cat-layout{grid-template-columns:1fr;gap:28px;}
  .toc{position:static;}
  .toc ol{flex-direction:row;flex-wrap:wrap;gap:6px;}
  .toc a{padding:8px 12px;background:var(--surface-2);}
  .faq-grid{grid-template-columns:1fr;}
  .mini-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-card{padding:32px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .nav{height:60px;}
  .command-search,.text-link{display:none;}
  .cat-hero h1{font-size:28px;}
  .cat-hero .lead{font-size:15.5px;}
  .hero-media .frame img{height:236px;}
  .section-card{padding:24px 20px;}
  .section-card h2{font-size:22px;}
  .check-grid{grid-template-columns:1fr;}
  .mini-grid{grid-template-columns:1fr;}
  .block-head h2{font-size:23px;}
  .cta-card{padding:26px 22px;}
  .cta-copy h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .sub-input-row{flex-direction:column;}
  .sub-input-row .btn{width:100%;}
}
@media (max-width:520px){
  body{font-size:15.5px;}
  .cat-hero h1{font-size:25px;}
  .cat-hero{padding:16px 0 40px;}
  .badge-row{gap:10px;}
  .stat{min-height:52px;padding:8px 16px;}
  .section-num{width:32px;height:32px;font-size:13px;}
  .section-card h2{font-size:20px;}
  .step-item,.steps li{padding:15px 16px;}
  .cta-wrap{padding:56px 0 72px;}
  .related,.faq-block{padding-top:56px;}
}

/* roulang page: category2 */
:root{
  --brand-50:#EEFBF3; --brand-300:#7BE0A6; --brand-500:#17B978; --brand-600:#0E9A63; --brand-700:#08774D;
  --accent-300:#FFC24B; --accent-500:#FF7A29; --accent-600:#E85F13;
  --ink-900:#0E1A16; --ink-700:#2A3A34; --ink-500:#5C6E67; --ink-300:#9AA9A2; --line:#E3EAE5;
  --bg:#F5F8F4; --surface:#FFFFFF; --surface-2:#EBF3ED;
  --ok:#17B978; --warn:#FF7A29; --err:#E14A3B; --info:#2F80ED;
  --grad-brand:linear-gradient(118deg,#8FE04F 0%,#17B978 52%,#0E9A63 100%);
  --grad-warm:linear-gradient(120deg,#FFC24B 0%,#FF7A29 100%);
  --r-card:22px; --r-sm:16px; --r-img:18px; --r-input:14px;
  --shadow-1:0 1px 2px rgba(14,26,22,.05);
  --shadow-2:0 14px 34px -14px rgba(14,26,22,.16);
  --shadow-3:0 22px 48px -18px rgba(14,26,22,.22);
  --container:1200px;
  --ff:"PingFang SC","HarmonyOS Sans","MiSans","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--ff);font-size:16px;line-height:1.85;color:var(--ink-700);
  background:var(--bg);-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,li,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font-family:inherit;font-size:15px;color:var(--ink-900)}
svg{display:block}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid var(--line);transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.nav{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:30px;height:30px;border-radius:9px;background:var(--grad-brand);
  display:grid;place-items:center;box-shadow:0 6px 14px -8px rgba(14,154,99,.9);
}
.logo-mark svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
.logo-text{font-size:18px;font-weight:700;letter-spacing:-.4px;color:var(--ink-900)}
.nav-links{display:flex;align-items:center;gap:4px;margin-right:auto}
.nav-link{
  position:relative;padding:8px 12px;font-size:14.5px;font-weight:500;color:var(--ink-500);
  border-radius:10px;transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--ink-900);background:var(--surface-2)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-600);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:14px}
.command-search{
  display:flex;align-items:center;gap:8px;width:264px;height:40px;padding:0 12px;
  background:var(--surface-2);border:1px solid transparent;border-radius:999px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.command-search:focus-within{background:var(--surface);border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(23,185,120,.14)}
.command-search svg{width:16px;height:16px;flex-shrink:0;fill:none;stroke:var(--ink-500);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.command-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px}
.command-search input::placeholder{color:var(--ink-300)}
.kbd{
  flex-shrink:0;font-size:11px;font-weight:600;color:var(--ink-500);
  background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:2px 6px;
}
.text-link{
  display:inline-flex;align-items:center;gap:4px;font-size:14px;font-weight:500;color:var(--ink-700);
  padding:6px 2px;background-image:linear-gradient(var(--brand-500),var(--brand-500));
  background-repeat:no-repeat;background-position:0 100%;background-size:0 2px;
  transition:background-size .22s ease,color .2s ease;
}
.text-link svg{width:15px;height:15px;transition:transform .22s ease}
.text-link:hover{color:var(--brand-600);background-size:100% 2px}
.text-link:hover svg{transform:translateX(3px)}
.burger{
  display:none;width:40px;height:40px;border-radius:12px;background:var(--surface-2);
  position:relative;align-items:center;justify-content:center;
}
.burger span,.burger span::before,.burger span::after{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:.22s ease;
}
.burger span{position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.burger[aria-expanded="true"] span{background:transparent}
.burger[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.burger[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;white-space:nowrap;transition:.22s ease;
}
.btn svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{background:var(--grad-brand);background-size:160% 100%;color:#fff;box-shadow:0 12px 26px -14px rgba(14,154,99,.85)}
.btn-primary:hover{background-position:60% 0;transform:translateY(-1px);box-shadow:0 18px 34px -16px rgba(14,154,99,.9)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink-900)}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-600);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.btn-block{width:100%}

/* ============ breadcrumb ============ */
.breadcrumb{padding:16px 0}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500)}
.crumb-list a{color:var(--ink-500)}
.crumb-list a:hover{color:var(--brand-600)}
.crumb-list .sep{color:var(--ink-300)}
.crumb-list [aria-current]{color:var(--ink-900);font-weight:500}

/* ============ hero ============ */
.cat-hero{position:relative;overflow:hidden;padding:56px 0 72px}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(560px 320px at 12% 8%,rgba(23,185,120,.12),transparent 70%),
    radial-gradient(420px 280px at 92% 12%,rgba(255,122,41,.10),transparent 72%),
    linear-gradient(transparent 95%,rgba(14,26,22,.03) 95%),
    linear-gradient(90deg,transparent 95%,rgba(14,26,22,.03) 95%);
  background-size:auto,auto,26px 26px,26px 26px;
}
.hero-grid{position:relative;display:grid;grid-template-columns:6.2fr 5fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  background:var(--surface-2);color:var(--brand-700);font-size:13px;font-weight:600;letter-spacing:.2px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--grad-warm)}
.cat-hero h1{
  margin:22px 0 18px;font-size:42px;line-height:1.25;letter-spacing:-.5px;
  font-weight:800;color:var(--ink-900);
}
.cat-hero h1 em{
  font-style:normal;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{font-size:17px;line-height:1.9;color:var(--ink-500);max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 0}
.stat-row{display:flex;flex-wrap:wrap;align-items:stretch;gap:0;margin-top:36px}
.stat{
  padding:0 22px;border-left:1px solid var(--line);
}
.stat:first-child{padding-left:0;border-left:0}
.stat b{
  display:block;font-size:26px;font-weight:700;color:var(--ink-900);
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.stat span{font-size:13px;color:var(--ink-500)}
.hero-media{position:relative;border-radius:26px;overflow:hidden;box-shadow:var(--shadow-2);background:var(--surface-2)}
.hero-media img{width:100%;height:400px;object-fit:cover;transition:transform .5s ease}
.hero-media:hover img{transform:scale(1.03)}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(14,26,22,.16),rgba(14,26,22,0) 55%);
}
.float-badge{
  position:absolute;right:18px;bottom:18px;z-index:2;
  display:flex;flex-direction:column;gap:2px;padding:12px 18px;border-radius:16px;
  background:rgba(14,26,22,.88);color:#fff;backdrop-filter:blur(4px);
}
.float-badge b{font-size:22px;font-weight:700;color:var(--brand-300);font-variant-numeric:tabular-nums;line-height:1.2}
.float-badge span{font-size:12px;color:rgba(255,255,255,.7)}

/* ============ sections ============ */
.section{padding:96px 0}
.section.tight{padding-top:0}
.section.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{
  font-size:28px;line-height:1.3;font-weight:700;color:var(--ink-900);letter-spacing:-.3px;
}
.section-head p{margin-top:14px;font-size:16px;color:var(--ink-500)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ============ intro split ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split-media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-2);background:var(--surface-2)}
.split-media img{width:100%;height:340px;object-fit:cover}
.split-body h2{font-size:26px;line-height:1.35;font-weight:700;color:var(--ink-900)}
.split-body p{margin-top:16px;color:var(--ink-500)}
.feature-list{margin-top:24px;display:grid;gap:14px}
.feature-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--ink-700)}
.check-ico{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--brand-50);
  display:grid;place-items:center;margin-top:3px;
}
.check-ico svg{width:13px;height:13px;fill:none;stroke:var(--brand-600);stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}

/* ============ badges ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
  background:var(--surface-2);color:var(--brand-700);font-size:12.5px;font-weight:600;
}
.tag.warm{background:#FFF3E6;color:var(--accent-600)}
.tag.line{background:transparent;border:1px solid var(--line);color:var(--ink-500)}
.badge-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:8px}
.badge-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:22px 24px;box-shadow:var(--shadow-1);transition:.25s ease;
}
.badge-card:hover{transform:translateY(-4px);border-color:rgba(23,185,120,.28);box-shadow:var(--shadow-2)}
.badge-card b{
  display:block;font-size:30px;font-weight:700;line-height:1.2;color:var(--ink-900);
  font-variant-numeric:tabular-nums;
}
.badge-card b i{font-style:normal;font-size:15px;font-weight:600;color:var(--ink-500);margin-left:4px}
.badge-card span{display:block;margin-top:6px;font-size:13.5px;color:var(--ink-500)}

/* ============ timeline ============ */
.timeline{position:relative;max-width:960px;margin:0 auto;padding:12px 0 0}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;transform:translateX(-50%);
  background:linear-gradient(180deg,rgba(23,185,120,0),rgba(23,185,120,.55) 12%,rgba(23,185,120,.55) 88%,rgba(23,185,120,0));
}
.tl-item{position:relative;width:50%;padding:0 46px 34px 0}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 34px 46px}
.tl-dot{
  position:absolute;top:6px;right:-20px;width:40px;height:40px;border-radius:50%;
  background:var(--grad-brand);color:#fff;display:grid;place-items:center;
  font-size:13.5px;font-weight:700;font-variant-numeric:tabular-nums;
  box-shadow:0 10px 22px -12px rgba(14,154,99,.95);z-index:2;
}
.tl-item:nth-child(even) .tl-dot{right:auto;left:-20px}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 28px;box-shadow:var(--shadow-1);transition:.25s ease;
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(23,185,120,.28);box-shadow:var(--shadow-3)}
.tl-card h3{margin:14px 0 10px;font-size:19px;font-weight:600;color:var(--ink-900);line-height:1.45}
.tl-card p{font-size:15px;color:var(--ink-500);line-height:1.85}
.dot-list{margin-top:16px;display:grid;gap:9px}
.dot-list li{position:relative;padding-left:18px;font-size:14.5px;color:var(--ink-700)}
.dot-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;
  background:var(--brand-300);
}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;padding-top:16px;border-top:1px dashed var(--line)}
.tl-meta span{font-size:13px;color:var(--ink-500)}

/* ============ checklist ============ */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.check-card{
  display:flex;gap:18px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 28px;box-shadow:var(--shadow-1);transition:.25s ease;
}
.check-card:hover{transform:translateY(-4px);border-color:rgba(23,185,120,.28);box-shadow:var(--shadow-2)}
.check-card .ico{
  flex-shrink:0;width:46px;height:46px;border-radius:14px;background:var(--surface-2);
  display:grid;place-items:center;
}
.check-card .ico svg{width:22px;height:22px;fill:none;stroke:var(--brand-600);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.check-card h3{font-size:18px;font-weight:600;color:var(--ink-900);line-height:1.45}
.check-card p{margin-top:8px;font-size:14.5px;color:var(--ink-500)}
.check-card .tag{margin-top:14px}

/* ============ faq ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 20px;align-items:start}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;transition:.25s ease}
.faq-item:hover{border-color:rgba(23,185,120,.28)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--ink-900);line-height:1.6;
}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;background:var(--surface-2);
  display:grid;place-items:center;transition:transform .2s ease,background .2s ease;
}
.faq-icon svg{width:12px;height:12px;fill:none;stroke:var(--brand-700);stroke-width:2.6;stroke-linecap:round}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--brand-50)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--ink-700)}

/* ============ mini cards ============ */
.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mini-card{
  display:flex;flex-direction:column;gap:12px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px;box-shadow:var(--shadow-1);transition:.25s ease;
}
.mini-card:hover{transform:translateY(-4px);border-color:rgba(23,185,120,.28);box-shadow:var(--shadow-3)}
.mini-card h3{font-size:18px;font-weight:600;color:var(--ink-900)}
.mini-card p{font-size:14.5px;color:var(--ink-500);flex:1}
.mini-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600)}
.mini-more svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;transition:transform .22s ease}
.mini-card:hover .mini-more svg{transform:translateX(4px)}

/* ============ CTA band ============ */
.cta-band{padding:0 0 96px}
.cta-inner{
  position:relative;overflow:hidden;border-radius:26px;background:var(--ink-900);
  padding:52px 56px;display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.cta-inner::before{
  content:"";position:absolute;inset:0;padding:1px;border-radius:26px;
  background:var(--grad-brand);opacity:.55;
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.cta-inner::after{
  content:"";position:absolute;width:360px;height:360px;right:-90px;top:-140px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,185,120,.35),transparent 68%);pointer-events:none;
}
.cta-copy{position:relative}
.cta-copy h2{font-size:26px;font-weight:700;color:#fff;line-height:1.35}
.cta-copy p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.68);max-width:520px}
.cta-actions{position:relative;display:flex;gap:14px;flex-shrink:0}
.cta-actions .btn-primary{background:#fff;color:var(--ink-900);box-shadow:none}
.cta-actions .btn-primary:hover{background:#fff;transform:translateY(-1px)}
.cta-actions .btn-outline{background:transparent;border:1px solid rgba(255,255,255,.35);color:#fff}
.cta-actions .btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.08)}

/* ============ footer ============ */
.site-footer{background:var(--ink-900);color:var(--ink-300);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr .9fr .9fr 1.3fr;gap:44px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:var(--ink-300);max-width:330px}
.socials{display:flex;gap:10px;margin-top:22px}
.social-btn{
  width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.07);
  display:grid;place-items:center;transition:.22s ease;
}
.social-btn svg{width:17px;height:17px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.social-btn:hover{background:var(--brand-600);transform:translateY(-2px)}
.footer-col h4{
  font-size:13px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:#fff;margin-bottom:18px;
}
.footer-col ul{display:grid;gap:11px}
.footer-col a{display:inline-block;font-size:14px;color:var(--ink-300);transition:.2s ease}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.sub-form{margin-top:4px}
.sub-field label{display:block;font-size:13px;font-weight:600;color:#fff;margin-bottom:10px}
.sub-input-row{display:flex;gap:10px}
.sub-input{
  flex:1;min-width:0;height:48px;padding:0 16px;border-radius:var(--r-input);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);color:#fff;outline:none;
  transition:.2s ease;
}
.sub-input::placeholder{color:rgba(255,255,255,.4)}
.sub-input:focus{border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(23,185,120,.16);background:rgba(255,255,255,.09)}
.sub-input.is-error{border-color:var(--err)}
.sub-hint{display:block;margin-top:10px;font-size:12.5px;color:var(--ink-300)}
.sub-hint.is-error{color:#FF9A8C}
.sub-form .btn{height:48px}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--ink-300);
}

/* ============ mobile drawer ============ */
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--surface);
  display:flex;flex-direction:column;padding:0;transform:translateY(-8px);
  opacity:0;pointer-events:none;transition:opacity .22s ease,transform .22s ease;
}
.drawer.is-open{opacity:1;pointer-events:auto;transform:none}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:60px;padding:0 18px;border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;border-radius:12px;background:var(--surface-2);display:grid;place-items:center}
.drawer-close svg{width:16px;height:16px;fill:none;stroke:var(--ink-900);stroke-width:2.4;stroke-linecap:round}
.drawer-body{flex:1;overflow-y:auto;padding:22px 18px}
.drawer-body a.d-link{
  display:block;padding:15px 4px;font-size:18px;font-weight:600;color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.drawer-body a.d-link.is-active{color:var(--brand-600)}
.drawer-foot{padding:18px;border-top:1px solid var(--line);display:grid;gap:12px}
.drawer .command-search{width:100%}

/* ============ responsive ============ */
@media (max-width:1279px){
  .section{padding:80px 0}
  .cat-hero h1{font-size:38px}
  .hero-media img{height:360px}
  .footer-grid{gap:34px}
}
@media (max-width:1023px){
  .nav-links,.command-search,.nav-actions .text-link{display:none}
  .burger{display:inline-flex}
  .nav{height:62px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media img{height:300px}
  .section{padding:72px 0}
  .split{grid-template-columns:1fr;gap:32px}
  .split-media img{height:280px}
  .badge-strip{grid-template-columns:repeat(2,1fr)}
  .check-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .mini-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767px){
  .container{padding:0 17px}
  .cat-hero{padding:36px 0 52px}
  .cat-hero h1{font-size:27px;margin:16px 0 14px}
  .lead{font-size:15.5px}
  .hero-actions{gap:10px}
  .hero-actions .btn{height:46px;padding:0 20px;font-size:14.5px}
  .stat-row{margin-top:26px;display:grid;grid-template-columns:1fr 1fr;gap:0}
  .stat{padding:12px 16px;border-left:0;border-top:1px solid var(--line)}
  .stat:nth-child(odd){border-right:1px solid var(--line);padding-left:0}
  .stat:nth-child(1),.stat:nth-child(2){border-top:0}
  .stat b{font-size:22px}
  .hero-media img{height:240px}
  .section{padding:56px 0}
  .section-head{margin-bottom:30px}
  .section-head h2,.split-body h2,.cta-copy h2{font-size:22px}
  .badge-strip{grid-template-columns:1fr}
  .timeline::before{left:20px;transform:none}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding:0 0 26px 56px}
  .tl-dot,.tl-item:nth-child(even) .tl-dot{left:0;right:auto;width:40px;height:40px}
  .tl-card{padding:22px}
  .cta-band{padding-bottom:56px}
  .cta-inner{padding:30px 24px;border-radius:22px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{padding-top:52px}
  .sub-input-row{flex-direction:column}
  .sub-input-row .btn{width:100%}
  .footer-bottom{margin-top:38px;flex-direction:column;gap:8px}
}
@media (max-width:420px){
  .cat-hero h1{font-size:24px}
  .badge-card b{font-size:26px}
  .logo-text{font-size:17px}
}

/* roulang page: category3 */
:root{
  --brand-50:#EEFBF3;--brand-300:#7BE0A6;--brand-500:#17B978;--brand-600:#0E9A63;--brand-700:#08774D;
  --accent-300:#FFC24B;--accent-500:#FF7A29;--accent-600:#E85F13;
  --ink-900:#0E1A16;--ink-700:#2A3A34;--ink-500:#5C6E67;--ink-300:#9AA9A2;--line:#E3EAE5;
  --bg:#F5F8F4;--surface:#FFFFFF;--surface-2:#EBF3ED;
  --ok:#17B978;--warn:#FF7A29;--err:#E14A3B;--info:#2F80ED;
  --grad-brand:linear-gradient(118deg,#8FE04F 0%,#17B978 52%,#0E9A63 100%);
  --grad-warm:linear-gradient(120deg,#FFC24B 0%,#FF7A29 100%);
  --radius:22px;--radius-sm:16px;--radius-img:18px;--radius-input:14px;
  --shadow-1:0 1px 2px rgba(14,26,22,.05);
  --shadow-2:0 14px 34px -14px rgba(14,26,22,.16);
  --shadow-3:0 22px 48px -18px rgba(14,26,22,.22);
  --font-cn:"PingFang SC","HarmonyOS Sans","MiSans","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter","Space Grotesk",ui-sans-serif,system-ui,sans-serif;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font-cn);font-size:16px;line-height:1.85;color:var(--ink-700);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.3}
h1{font-size:42px;font-weight:800;letter-spacing:-.5px;line-height:1.25}
h2{font-size:28px;line-height:1.3}
h3{font-size:19px;font-weight:600;line-height:1.45}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:16px;top:-60px;z-index:120;background:var(--ink-900);color:#fff;padding:10px 18px;border-radius:999px;font-size:14px;transition:top .2s}
.skip-link:focus{top:12px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.nav{display:flex;align-items:center;gap:24px;height:68px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:34px;height:34px;border-radius:11px;background:var(--grad-brand);display:grid;place-items:center;box-shadow:var(--shadow-1)}
.logo-mark svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.logo-text{font-size:18px;font-weight:700;color:var(--ink-900);letter-spacing:.2px}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{position:relative;display:inline-block;padding:10px 12px;font-size:14.5px;font-weight:500;color:var(--ink-700);border-radius:10px;transition:color .2s,background .2s}
.nav-link:hover{color:var(--brand-700);background:var(--brand-50)}
.nav-link.is-active{color:var(--brand-700);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;background:var(--grad-brand)}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.command-search{display:flex;align-items:center;gap:8px;width:264px;height:40px;padding:0 12px;border:1px solid var(--line);border-radius:999px;background:var(--surface-2);transition:border-color .2s,box-shadow .2s,background .2s}
.command-search:focus-within{border-color:var(--brand-500);background:#fff;box-shadow:0 0 0 4px rgba(23,185,120,.14)}
.command-search svg{width:16px;height:16px;flex:0 0 auto;fill:none;stroke:var(--ink-500);stroke-width:2;stroke-linecap:round}
.command-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px}
.command-search input::placeholder{color:var(--ink-300)}
.kbd{font-size:11.5px;line-height:1.4;color:var(--ink-500);border:1px solid var(--line);background:#fff;border-radius:6px;padding:1px 5px;font-family:var(--font-num)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:500;color:var(--ink-700);transition:color .2s}
.text-link svg{width:15px;height:15px;transition:transform .2s}
.text-link:hover{color:var(--brand-700)}
.text-link:hover svg{transform:translateX(3px)}
.burger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;position:relative;transition:border-color .2s,background .2s}
.burger:hover{border-color:var(--brand-500);background:var(--brand-50)}
.burger span,.burger span::before,.burger span::after{position:absolute;left:50%;width:18px;height:2px;background:var(--ink-900);border-radius:2px;transform:translateX(-50%);transition:transform .2s}
.burger span{top:50%;margin-top:-1px}
.burger span::before,.burger span::after{content:"";left:0;transform:none}
.burger span::before{top:-6px}
.burger span::after{top:6px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border:1px solid transparent;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;transition:transform .2s,box-shadow .25s,background .25s,color .2s,border-color .2s}
.btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{background:var(--grad-brand);background-size:140% 100%;color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background-position:60% 0;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink-900)}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--brand-50)}
.btn-ghost:active{transform:translateY(1px)}
.btn-white{background:#fff;color:var(--ink-900);box-shadow:var(--shadow-1)}
.btn-white:hover{transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-light{background:transparent;border-color:rgba(255,255,255,.36);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.6)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn:disabled{opacity:.45;pointer-events:none}

/* 抽屉 */
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(360px,86vw);background:var(--surface);z-index:90;transform:translateX(102%);transition:transform .3s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column;padding:18px 20px 26px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:40px;height:40px;border:1px solid var(--line);border-radius:12px;font-size:20px;line-height:1;color:var(--ink-700)}
.drawer-close:hover{border-color:var(--brand-500);color:var(--brand-700)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{font-size:18px;font-weight:600;color:var(--ink-900);padding:12px 10px;border-radius:12px;transition:background .2s,color .2s}
.drawer-nav a:hover{background:var(--brand-50);color:var(--brand-700)}
.drawer-nav a.is-active{color:var(--brand-700);background:var(--brand-50)}
.drawer-foot{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:12px}
.drawer-foot .command-search{width:100%}
.drawer-mask{position:fixed;inset:0;background:rgba(14,26,22,.42);opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
body.no-scroll{overflow:hidden}

/* 面包屑 */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-500);padding:16px 0}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb .sep{color:var(--ink-300)}
.breadcrumb .current{color:var(--ink-900);font-weight:600}

/* 分类头 */
.cat-hero{position:relative;overflow:hidden;background:var(--surface);border-bottom:1px solid var(--line)}
.cat-hero::before,.cat-hero::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
.cat-hero::before{width:460px;height:460px;top:-190px;left:-140px;background:radial-gradient(circle,rgba(23,185,120,.12),transparent 68%)}
.cat-hero::after{width:380px;height:380px;bottom:-200px;right:-100px;background:radial-gradient(circle,rgba(255,122,41,.12),transparent 68%)}
.cat-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.32fr 1fr;gap:52px;align-items:center;padding:56px 0 66px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;background:var(--surface-2);color:var(--brand-700);font-size:13px;font-weight:600;letter-spacing:.3px}
.cat-hero h1{margin:18px 0 16px}
.cat-hero .lead{font-size:17px;line-height:1.85;color:var(--ink-700);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-media{position:relative}
.hero-media-frame{border-radius:26px;overflow:hidden;box-shadow:var(--shadow-2);border:1px solid var(--line);background:var(--surface-2)}
.hero-media-frame img{width:100%;height:330px;object-fit:cover;transition:transform .5s ease}
.hero-media-frame:hover img{transform:scale(1.03)}
.hero-media-badge{position:absolute;left:-14px;bottom:-16px;background:var(--ink-900);color:#fff;border-radius:999px;padding:12px 20px;display:flex;align-items:center;gap:10px;box-shadow:var(--shadow-2)}
.hero-media-badge .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:18px;font-weight:700;color:var(--brand-300)}
.hero-media-badge .label{font-size:13px;color:rgba(255,255,255,.82)}

/* 徽章组 */
.stat-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.stat{display:flex;align-items:center;gap:10px;height:52px;padding:0 18px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line)}
.stat .stat-label{font-size:13px;color:var(--ink-500)}
.stat .stat-value{font-size:14.5px;font-weight:700;color:var(--ink-900)}
.stat .divider{width:1px;height:18px;background:var(--line)}

/* 板块 */
.section{padding:88px 0}
.section-alt{background:var(--surface-2)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px}
.section-head .head-left{max-width:620px}
.section-head h2{margin-top:12px}
.section-desc{font-size:15px;line-height:1.85;color:var(--ink-500);max-width:520px}

/* 对照表 */
.table-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);overflow:hidden}
.compare-table{width:100%;border-collapse:collapse;font-size:14.5px}
.compare-table caption{text-align:left;padding:22px 26px 0;font-size:13px;color:var(--ink-500)}
.compare-table thead th{font-size:14px;font-weight:600;text-align:left;color:var(--ink-900);padding:18px 24px;background:var(--surface-2);border-bottom:1px solid var(--line);white-space:nowrap}
.compare-table td{padding:18px 24px;border-bottom:1px solid var(--line);color:var(--ink-700);vertical-align:top}
.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table tbody tr{transition:background .2s}
.compare-table tbody tr:hover{background:var(--brand-50)}
.cell-strong{display:block;font-weight:600;color:var(--ink-900)}
.cell-note{display:block;font-size:13px;color:var(--ink-500);margin-top:2px}
.pill-row{display:flex;flex-wrap:wrap;gap:6px}
.pill{display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;font-size:12.5px;font-weight:600;background:var(--brand-50);color:var(--brand-700)}
.pill-warm{background:rgba(255,122,41,.12);color:var(--accent-600)}

/* 两栏对比卡 */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.compare-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;box-shadow:var(--shadow-1);transition:transform .25s,box-shadow .25s,border-color .25s}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);border-color:rgba(23,185,120,.28)}
.compare-card .card-tag{display:inline-flex;align-items:center;height:28px;padding:0 13px;border-radius:999px;font-size:12.5px;font-weight:600;background:var(--surface-2);color:var(--brand-700)}
.compare-card h3{margin:16px 0 8px;font-size:20px}
.compare-card .card-lead{font-size:14.5px;color:var(--ink-500);line-height:1.8}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.75}
.check-list svg{width:18px;height:18px;flex:0 0 auto;margin-top:5px;fill:none;stroke:var(--brand-500);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;box-shadow:var(--shadow-1);transition:transform .25s,box-shadow .25s,border-color .25s}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);border-color:rgba(23,185,120,.28)}
.step-no{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:34px;font-weight:700;color:var(--brand-300);line-height:1}
.step-card h3{margin:14px 0 8px;font-size:18px}
.step-card p{font-size:14.5px;line-height:1.8;color:var(--ink-500)}

/* 图文区块 */
.split{display:grid;grid-template-columns:1fr 1.05fr;gap:52px;align-items:center}
.split-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-2)}
.split-media img{width:100%;height:360px;object-fit:cover}
.split-body h2{margin-bottom:14px}
.split-body .body-lead{font-size:15.5px;color:var(--ink-500);line-height:1.85}
.check-grid{margin-top:26px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.check-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px 20px;transition:border-color .2s,box-shadow .2s,transform .2s}
.check-item:hover{border-color:rgba(23,185,120,.32);box-shadow:var(--shadow-1);transform:translateY(-3px)}
.check-item h4{font-size:15.5px;font-weight:600;color:var(--ink-900);margin-bottom:6px}
.check-item p{font-size:14px;line-height:1.78;color:var(--ink-500)}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq-item[open]{border-color:rgba(23,185,120,.36);box-shadow:var(--shadow-1)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink-900);cursor:pointer;list-style:none;transition:color .2s}
.faq-q::-webkit-details-marker{display:none}
.faq-q:hover{color:var(--brand-700)}
.faq-icon{width:22px;height:22px;flex:0 0 auto;position:relative;transition:transform .2s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand-600);border-radius:2px;transform:translate(-50%,-50%)}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-a{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--ink-700)}

/* 相关分类 */
.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mini-card{display:flex;flex-direction:column;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow-1);transition:transform .25s,box-shadow .25s,border-color .25s}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);border-color:rgba(23,185,120,.28)}
.mini-card .mini-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.mini-card h3{font-size:18px}
.mini-card p{font-size:14.5px;line-height:1.8;color:var(--ink-500)}
.mini-arrow{width:38px;height:38px;border-radius:999px;border:1px solid var(--line);display:grid;place-items:center;transition:background .25s,border-color .25s,transform .25s}
.mini-arrow svg{width:16px;height:16px;fill:none;stroke:var(--ink-900);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.mini-card:hover .mini-arrow{background:var(--grad-brand);border-color:transparent;transform:translateX(4px)}
.mini-card:hover .mini-arrow svg{stroke:#fff}

/* CTA */
.cta-section{padding:0 0 96px}
.cta-card{position:relative;overflow:hidden;border-radius:26px;background:var(--ink-900);padding:52px 54px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:30px}
.cta-card::before{content:"";position:absolute;inset:0;border-radius:26px;padding:1px;background:var(--grad-brand);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;opacity:.75}
.cta-copy{position:relative;z-index:2;max-width:620px}
.cta-copy h2{color:#fff;font-size:27px}
.cta-copy p{margin-top:12px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.72)}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px}
.cta-toast{position:relative;z-index:2;width:100%;font-size:14px;color:var(--brand-300);min-height:22px}

/* 页脚 */
.site-footer{background:var(--ink-900);color:var(--ink-300);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:44px;padding-bottom:52px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--ink-300)}
.socials{display:flex;gap:10px;margin-top:20px}
.social-btn{width:38px;height:38px;border-radius:999px;display:grid;place-items:center;background:rgba(255,255,255,.06);transition:background .25s,transform .25s}
.social-btn svg{width:17px;height:17px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.social-btn:hover{background:var(--brand-600);transform:translateY(-2px)}
.footer-col h4{font-size:13px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.55);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--ink-300);transition:color .2s,transform .2s;display:inline-block}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.sub-form{margin-top:4px}
.sub-field label{display:block;font-size:13px;font-weight:600;color:rgba(255,255,255,.72);margin-bottom:10px}
.sub-input-row{display:flex;gap:10px;flex-wrap:wrap}
.sub-input{flex:1;min-width:150px;height:48px;padding:0 16px;border-radius:var(--radius-input);border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:#fff;outline:none;transition:border-color .2s,box-shadow .2s,background .2s}
.sub-input::placeholder{color:rgba(255,255,255,.4)}
.sub-input:focus{border-color:var(--brand-500);background:rgba(255,255,255,.1);box-shadow:0 0 0 4px rgba(23,185,120,.18)}
.sub-input.is-error{border-color:var(--err);box-shadow:0 0 0 4px rgba(225,74,59,.16)}
.sub-hint{display:block;margin-top:10px;font-size:13px;color:rgba(255,255,255,.45)}
.sub-hint.is-error{color:#FF9B90}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:22px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:rgba(255,255,255,.5)}

/* 响应式 */
@media (max-width:1279px){
  h1{font-size:38px}
  .nav{gap:18px}
  .command-search{width:220px}
  .cat-hero-inner{gap:38px}
  .section{padding:76px 0}
}
@media (max-width:1080px){
  .nav-links{display:none}
  .command-search{display:none}
  .text-link{display:none}
  .burger{display:block}
  .steps{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:1023px){
  .cat-hero-inner{grid-template-columns:1fr;gap:36px;padding:44px 0 56px}
  .hero-media-frame img{height:300px}
  .split{grid-template-columns:1fr;gap:32px}
  .split-media img{height:300px}
  .section{padding:64px 0}
}
@media (max-width:767px){
  h1{font-size:27px}
  h2{font-size:22px}
  .container{padding:0 18px}
  .nav{height:60px}
  .hero-media-frame img{height:240px}
  .hero-media-badge{left:0;bottom:-14px;padding:10px 16px}
  .stat{height:auto;padding:12px 16px;width:calc(50% - 6px)}
  .stat .divider{display:none}
  .compare-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .mini-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
  .cta-section{padding:0 0 64px}
  .cta-card{padding:34px 24px;border-radius:22px}
  .cta-copy h2{font-size:22px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px}

  .compare-table,.compare-table tbody,.compare-table tr,.compare-table td{display:block;width:100%}
  .compare-table caption{padding:18px 18px 0}
  .compare-table thead{display:none}
  .compare-table tr{border:1px solid var(--line);border-radius:var(--radius-sm);padding:6px 2px;margin:0 14px 14px;background:var(--surface)}
  .compare-table tr:first-child{margin-top:16px}
  .compare-table td{border:0;padding:10px 16px;display:flex;justify-content:space-between;align-items:flex-start;gap:16px;text-align:right}
  .compare-table td::before{content:attr(data-label);font-size:13px;font-weight:600;color:var(--ink-500);text-align:left;flex:0 0 auto}
  .compare-table tbody tr:hover{background:var(--surface)}
}
@media (max-width:420px){
  h1{font-size:24px}
  .cat-hero .lead{font-size:15.5px}
  .btn{height:44px;padding:0 20px;font-size:14.5px}
  .step-card,.compare-card,.mini-card{padding:22px 18px}
  .faq-q{padding:17px 18px;font-size:15px}
  .faq-a{padding:0 18px 18px;font-size:14.5px}
}

/* roulang page: category4 */
:root{
  --brand-50:#EEFBF3;
  --brand-100:#D8F5E6;
  --brand-300:#7BE0A6;
  --brand-500:#17B978;
  --brand-600:#0E9A63;
  --brand-700:#08774D;
  --accent-300:#FFC24B;
  --accent-500:#FF7A29;
  --accent-600:#E85F13;
  --ink-900:#0E1A16;
  --ink-700:#2A3A34;
  --ink-500:#5C6E67;
  --ink-300:#9AA9A2;
  --line:#E3EAE5;
  --bg:#F5F8F4;
  --surface:#FFFFFF;
  --surface-2:#EBF3ED;
  --danger:#E14A3B;
  --info:#2F80ED;
  --grad-brand:linear-gradient(118deg,#8FE04F 0%,#17B978 52%,#0E9A63 100%);
  --grad-warm:linear-gradient(120deg,#FFC24B 0%,#FF7A29 100%);
  --radius-card:22px;
  --radius-sm:16px;
  --radius-img:18px;
  --radius-pill:999px;
  --radius-input:14px;
  --shadow-1:0 1px 2px rgba(14,26,22,.05);
  --shadow-2:0 14px 34px -14px rgba(14,26,22,.16);
  --shadow-3:0 22px 48px -18px rgba(14,26,22,.22);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-700);
  font-family:"PingFang SC","HarmonyOS Sans","MiSans","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
svg{display:block;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.nav{
  display:flex;
  align-items:center;
  gap:28px;
  height:68px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-mark{
  width:34px;height:34px;
  border-radius:11px;
  background:var(--grad-brand);
  display:grid;place-items:center;
  box-shadow:0 6px 16px -8px rgba(23,185,120,.7);
}
.logo-mark svg{
  width:20px;height:20px;
  fill:none;stroke:#fff;stroke-width:2.4;
  stroke-linecap:round;stroke-linejoin:round;
}
.logo-text{
  font-size:18px;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:.2px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-right:auto;
}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-700);
  border-radius:10px;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand-700);background:var(--brand-50);}
.nav-link.is-active{color:var(--brand-600);font-weight:600;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:1px;
  height:2px;
  border-radius:2px;
  background:var(--grad-brand);
}
.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}
.command-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:260px;
  height:40px;
  padding:0 10px 0 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  background:var(--surface-2);
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.command-search:focus-within{
  background:#fff;
  border-color:var(--brand-500);
  box-shadow:0 0 0 4px rgba(23,185,120,.14);
}
.command-search svg{
  width:17px;height:17px;flex-shrink:0;
  fill:none;stroke:var(--ink-500);stroke-width:2;
  stroke-linecap:round;stroke-linejoin:round;
}
.command-search input{
  flex:1;min-width:0;
  border:0;background:transparent;
  font-size:13.5px;color:var(--ink-900);
  outline:none;
}
.command-search input::placeholder{color:var(--ink-300);}
.kbd{
  flex-shrink:0;
  font-size:11px;
  letter-spacing:.4px;
  color:var(--ink-500);
  background:#fff;
  border:1px solid var(--line);
  border-radius:8px;
  padding:2px 6px;
  font-family:"Space Grotesk","Inter",monospace;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:5px;
  font-size:14px;
  font-weight:500;
  color:var(--ink-700);
  padding:6px 4px;
  transition:color .2s ease;
}
.text-link svg{width:15px;height:15px;transition:transform .2s ease;}
.text-link:hover{color:var(--brand-600);}
.text-link:hover svg{transform:translateX(3px);}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn svg{width:17px;height:17px;}
.btn-primary{
  background:var(--grad-brand);
  background-size:160% 100%;
  background-position:0% 50%;
  color:#fff;
  box-shadow:0 12px 26px -14px rgba(23,185,120,.9);
}
.btn-primary:hover{
  background-position:6% 50%;
  transform:translateY(-1px);
  box-shadow:0 18px 32px -16px rgba(23,185,120,.95);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-900);
}
.btn-ghost:hover{
  border-color:rgba(23,185,120,.45);
  color:var(--brand-700);
  transform:translateY(-1px);
  box-shadow:var(--shadow-1);
}
.btn-light{
  background:#fff;
  color:var(--ink-900);
  box-shadow:0 12px 26px -18px rgba(0,0,0,.6);
}
.btn-light:hover{transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.btn:active{transform:translateY(1px);}

.burger{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:12px;
  position:relative;
}
.burger span,
.burger span::before,
.burger span::after{
  position:absolute;
  left:50%;transform:translateX(-50%);
  width:18px;height:2px;
  border-radius:2px;
  background:var(--ink-900);
  transition:transform .2s ease,opacity .2s ease;
}
.burger span{top:20px;}
.burger span::before{content:"";top:-6px;left:0;transform:none;}
.burger span::after{content:"";top:6px;left:0;transform:none;}
body.menu-open .burger span{background:transparent;}
body.menu-open .burger span::before{transform:translateY(6px) rotate(45deg);}
body.menu-open .burger span::after{transform:translateY(-6px) rotate(-45deg);}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  padding:16px 0;
  font-size:13px;
  color:var(--ink-500);
}
.breadcrumb .sep{color:var(--ink-300);}
.breadcrumb a{transition:color .2s ease;}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .current{color:var(--ink-900);font-weight:600;}

/* ---------- 分类头区 ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  padding:34px 0 64px;
}
.cat-hero::before{
  content:"";
  position:absolute;
  width:520px;height:520px;
  top:-240px;left:-160px;
  background:radial-gradient(circle,rgba(23,185,120,.12),transparent 68%);
  pointer-events:none;
}
.cat-hero::after{
  content:"";
  position:absolute;
  width:420px;height:420px;
  bottom:-220px;right:-120px;
  background:radial-gradient(circle,rgba(255,122,41,.10),transparent 70%);
  pointer-events:none;
}
.cat-hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:6fr 5fr;
  gap:48px;
  align-items:center;
}
.badge-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:34px;
  padding:0 16px;
  border-radius:var(--radius-pill);
  background:var(--surface-2);
  color:var(--brand-700);
  font-size:13.5px;
  font-weight:600;
}
.badge-pill svg{width:15px;height:15px;fill:none;stroke:var(--brand-600);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;}
.cat-hero h1{
  margin:20px 0 16px;
  font-size:42px;
  line-height:1.25;
  letter-spacing:-.5px;
  font-weight:800;
  color:var(--ink-900);
}
.cat-hero h1 em{
  font-style:normal;
  background:var(--grad-brand);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.cat-hero .lead{
  font-size:16.5px;
  color:var(--ink-500);
  max-width:560px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.fact-row{
  display:flex;
  align-items:stretch;
  gap:22px;
  margin-top:34px;
  flex-wrap:wrap;
}
.fact{
  padding-right:22px;
  border-right:1px solid var(--line);
}
.fact:last-child{border-right:0;padding-right:0;}
.fact .num{
  display:block;
  font-family:"Space Grotesk","Inter",system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:24px;
  font-weight:700;
  color:var(--ink-900);
  line-height:1.2;
}
.fact .lbl{
  font-size:13px;
  color:var(--ink-500);
}
.hero-media{
  position:relative;
  border-radius:26px;
  overflow:hidden;
  box-shadow:var(--shadow-2);
  aspect-ratio:4/3;
}
.hero-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.hero-media:hover img{transform:scale(1.03);}
.hero-media .media-tag{
  position:absolute;
  right:16px;bottom:16px;
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 16px;
  border-radius:var(--radius-pill);
  background:rgba(14,26,22,.92);
  color:#fff;
  font-size:13px;
}
.hero-media .media-tag b{
  font-family:"Space Grotesk","Inter",sans-serif;
  font-variant-numeric:tabular-nums;
  color:var(--brand-300);
  font-size:16px;
}

/* ---------- 通用板块 ---------- */
.section{padding:0 0 88px;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.section-head h2{
  font-size:28px;
  line-height:1.3;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:-.3px;
}
.section-head p{
  margin-top:8px;
  font-size:15px;
  color:var(--ink-500);
  max-width:640px;
}
.section-head .head-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand-700);
  white-space:nowrap;
}
.section-head .head-link svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease;}
.section-head .head-link:hover svg{transform:translateX(3px);}

/* ---------- 卡片矩阵 ---------- */
.matrix{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.matrix-card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:28px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  overflow:hidden;
}
.matrix-card::before{
  content:"";
  position:absolute;
  inset:0 auto auto 0;
  width:100%;height:3px;
  background:var(--grad-brand);
  opacity:0;
  transition:opacity .24s ease;
}
.matrix-card:hover{
  transform:translateY(-4px);
  border-color:rgba(23,185,120,.28);
  box-shadow:var(--shadow-3);
}
.matrix-card:hover::before{opacity:1;}
.matrix-card .card-icon{
  width:48px;height:48px;
  border-radius:14px;
  background:var(--brand-50);
  display:grid;place-items:center;
  transition:background .24s ease;
}
.matrix-card .card-icon svg{
  width:24px;height:24px;
  fill:none;stroke:var(--brand-600);
  stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;
}
.matrix-card:hover .card-icon{background:var(--brand-100);}
.matrix-card h3{
  font-size:19px;
  font-weight:600;
  color:var(--ink-900);
  line-height:1.45;
}
.matrix-card p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--ink-500);
}
.matrix-card .card-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:12px;
  border-top:1px dashed var(--line);
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  background:var(--surface-2);
  color:var(--ink-700);
  font-size:12.5px;
  font-weight:500;
}
.arrow-btn{
  width:38px;height:38px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  display:grid;place-items:center;
  background:#fff;
  transition:transform .22s ease,background .22s ease,border-color .22s ease;
}
.arrow-btn svg{width:16px;height:16px;fill:none;stroke:var(--ink-700);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;transition:stroke .22s ease;}
.matrix-card:hover .arrow-btn{
  transform:translateX(4px);
  background:var(--grad-brand);
  border-color:transparent;
}
.matrix-card:hover .arrow-btn svg{stroke:#fff;}

/* ---------- 步骤流程 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  counter-reset:step;
}
.step{
  position:relative;
  padding:28px 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.step .step-no{
  font-family:"Space Grotesk","Inter",sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:32px;
  font-weight:700;
  letter-spacing:-1px;
  background:var(--grad-brand);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  line-height:1;
}
.step h3{
  margin:14px 0 8px;
  font-size:17px;
  font-weight:600;
  color:var(--ink-900);
}
.step p{
  font-size:14px;
  line-height:1.8;
  color:var(--ink-500);
}

/* ---------- 深色提示区 ---------- */
.dark-panel{
  position:relative;
  border-radius:26px;
  overflow:hidden;
  background:var(--ink-900);
  color:#fff;
  padding:56px 48px;
  box-shadow:var(--shadow-2);
}
.dark-panel .panel-bg{
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  opacity:.22;
  mix-blend-mode:luminosity;
}
.dark-panel > *{position:relative;}
.dark-panel h2{
  font-size:27px;
  font-weight:700;
  letter-spacing:-.3px;
  color:#fff;
}
.dark-panel .panel-sub{
  margin-top:10px;
  font-size:15px;
  color:var(--ink-300);
  max-width:680px;
}
.notice-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  margin-top:34px;
}
.notice{
  padding:22px;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  transition:background .22s ease,transform .22s ease;
}
.notice:hover{background:rgba(255,255,255,.1);transform:translateY(-3px);}
.notice .notice-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  background:var(--grad-warm);
  color:#3a1c04;
  font-size:12.5px;
  font-weight:600;
}
.notice h3{
  margin:14px 0 8px;
  font-size:17px;
  font-weight:600;
  color:#fff;
}
.notice p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.72);
}

/* ---------- FAQ ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:18px 24px;
  align-items:start;
}
.faq-col{display:flex;flex-direction:column;gap:18px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item.is-open{
  border-color:rgba(23,185,120,.32);
  box-shadow:var(--shadow-2);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 22px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--ink-900);
  line-height:1.6;
}
.faq-q .plus{
  flex-shrink:0;
  width:26px;height:26px;
  position:relative;
  border-radius:50%;
  background:var(--surface-2);
  transition:transform .25s ease,background .25s ease;
}
.faq-q .plus::before,
.faq-q .plus::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  transform:translate(-50%,-50%);
  background:var(--brand-700);
  border-radius:2px;
  transition:opacity .2s ease;
}
.faq-q .plus::before{width:12px;height:2px;}
.faq-q .plus::after{width:2px;height:12px;}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);background:var(--brand-100);}
.faq-item.is-open .faq-q .plus::after{opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .25s ease;
}
.faq-a-inner{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-700);
}
.faq-a-inner strong{color:var(--brand-700);font-weight:600;}

/* ---------- 相关分类迷你卡 ---------- */
.mini-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.mini-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.mini-card:hover{
  transform:translateY(-4px);
  border-color:rgba(23,185,120,.28);
  box-shadow:var(--shadow-3);
}
.mini-card .thumb{
  height:132px;
  overflow:hidden;
}
.mini-card .thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.mini-card:hover .thumb img{transform:scale(1.05);}
.mini-body{
  padding:20px 22px 22px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.mini-body h3{
  font-size:17px;
  font-weight:600;
  color:var(--ink-900);
}
.mini-body p{
  font-size:14px;
  line-height:1.75;
  color:var(--ink-500);
  flex:1;
}
.mini-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand-700);
}
.mini-link svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease;}
.mini-card:hover .mini-link svg{transform:translateX(4px);}

/* ---------- 收尾 CTA ---------- */
.cta-panel{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:44px 48px;
  border-radius:26px;
  background:var(--ink-900);
  color:#fff;
  overflow:hidden;
  box-shadow:var(--shadow-2);
}
.cta-panel::before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:26px;
  padding:1px;
  background:var(--grad-brand);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  pointer-events:none;
}
.cta-panel::after{
  content:"";
  position:absolute;
  width:380px;height:380px;
  right:-140px;top:-180px;
  background:radial-gradient(circle,rgba(23,185,120,.35),transparent 68%);
  pointer-events:none;
}
.cta-panel > *{position:relative;}
.cta-panel h2{
  font-size:26px;
  font-weight:700;
  color:#fff;
  letter-spacing:-.3px;
}
.cta-panel p{
  margin-top:10px;
  font-size:15px;
  color:var(--ink-300);
  max-width:560px;
}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  background:var(--ink-900);
  color:var(--ink-300);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:52px;
}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{
  margin-top:18px;
  font-size:14px;
  line-height:1.85;
  color:var(--ink-300);
  max-width:320px;
}
.socials{display:flex;gap:10px;margin-top:20px;}
.social-btn{
  width:38px;height:38px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.14);
  display:grid;place-items:center;
  transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.social-btn svg{
  width:17px;height:17px;
  fill:none;stroke:var(--ink-300);
  stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;
  transition:stroke .22s ease;
}
.social-btn:hover{background:rgba(23,185,120,.18);border-color:rgba(23,185,120,.5);transform:translateY(-2px);}
.social-btn:hover svg{stroke:#fff;}
.footer-col h4{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:#fff;
  margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{
  font-size:14px;
  color:var(--ink-300);
  transition:color .2s ease,transform .2s ease;
  display:inline-block;
}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.sub-field label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--ink-300);
  margin-bottom:10px;
}
.sub-input-row{display:flex;gap:10px;}
.sub-input{
  flex:1;
  min-width:0;
  height:48px;
  padding:0 16px;
  border-radius:var(--radius-input);
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.05);
  color:#fff;
  font-size:14px;
  outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.sub-input::placeholder{color:rgba(255,255,255,.4);}
.sub-input:focus{
  border-color:var(--brand-500);
  background:rgba(255,255,255,.08);
  box-shadow:0 0 0 4px rgba(23,185,120,.14);
}
.sub-input.is-error{border-color:var(--danger);}
.sub-input-row .btn{height:48px;padding:0 20px;font-size:14px;background:#fff;color:var(--ink-900);box-shadow:none;}
.sub-input-row .btn:hover{background:var(--brand-50);transform:translateY(-1px);}
.sub-hint{
  display:block;
  margin-top:10px;
  font-size:12.5px;
  color:var(--ink-300);
}
.sub-hint.is-error{color:#FF8D80;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0 30px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--ink-300);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .command-search{width:220px;}
  .cat-hero h1{font-size:38px;}
}
@media (max-width:1023px){
  .nav{gap:18px;}
  .nav-links{display:none;}
  .command-search{display:none;}
  .text-link{display:none;}
  .burger{display:block;}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px;}
  .cat-hero{padding:24px 0 48px;}
  .hero-media{aspect-ratio:16/9;}
  .matrix{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .notice-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .mini-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .dark-panel{padding:40px 30px;}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:36px 30px;}
  .section{padding-bottom:72px;}

  body.menu-open .nav-links{
    display:flex;
    flex-direction:column;
    align-items:flex-start;
    gap:6px;
    position:fixed;
    top:68px;left:0;right:0;bottom:0;
    background:#fff;
    padding:24px;
    margin:0;
    z-index:70;
    overflow-y:auto;
  }
  body.menu-open .nav-link{
    font-size:18px;
    font-weight:600;
    padding:12px 8px;
    width:100%;
  }
  body.menu-open .nav-link.is-active::after{display:none;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .nav{height:60px;}
  body.menu-open .nav-links{top:60px;}
  .logo-text{font-size:17px;}
  .cat-hero h1{font-size:27px;letter-spacing:-.2px;}
  .cat-hero .lead{font-size:15px;}
  .hero-actions .btn{width:100%;}
  .fact-row{gap:16px;}
  .fact{padding-right:16px;}
  .hero-media{aspect-ratio:4/3;}
  .section{padding-bottom:56px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .section-head h2{font-size:22px;}
  .matrix{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .mini-grid{grid-template-columns:1fr;}
  .dark-panel{padding:32px 22px;border-radius:22px;}
  .dark-panel h2{font-size:22px;}
  .cta-panel{padding:30px 22px;border-radius:22px;}
  .cta-panel h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .sub-input-row{flex-direction:column;}
  .sub-input-row .btn{width:100%;}
  .site-footer{margin-top:64px;padding-top:52px;}
}
@media (max-width:420px){
  .cat-hero h1{font-size:24px;}
  .matrix-card{padding:22px;}
  .fact .num{font-size:20px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}