/* roulang page: index */
:root{
  --ink-900:#0A1210;
  --ink-800:#12201B;
  --ink-700:#1B2C26;
  --brand-600:#0E6B4A;
  --brand-500:#148C60;
  --brand-050:#E8F4EE;
  --accent-400:#C9F24C;
  --warn-500:#FF6A2B;
  --paper:#F6F7F4;
  --card:#FFFFFF;
  --line:#E3E8E1;
  --text:#101613;
  --text-2:#4A554F;
  --text-3:#87928B;
  --r-card:18px;
  --r-input:12px;
  --r-badge:6px;
  --shadow-1:0 1px 2px rgba(10,18,16,.06);
  --shadow-2:0 12px 32px -12px rgba(10,18,16,.18);
  --shadow-3:0 20px 44px -16px rgba(10,18,16,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand-600);text-decoration:none;transition:color .24s var(--ease)}
a:hover{color:var(--brand-500)}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent-400);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--paper{background:var(--paper)}
.section--white{background:#fff}
.section--dark{background:var(--ink-900);color:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head .h-group{max-width:720px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:var(--brand-600);font-weight:700;text-transform:uppercase;margin-bottom:12px}
.eyebrow::before{content:"";width:18px;height:4px;border-radius:2px;background:var(--accent-400)}
.section--dark .eyebrow{color:var(--accent-400)}
h2.h2{font-size:30px;line-height:1.3;font-weight:800;letter-spacing:-.01em}
p.lead{margin-top:14px;color:var(--text-2);font-size:16px}
.section--dark p.lead{color:rgba(255,255,255,.72)}
.text-link{font-size:14px;font-weight:700;white-space:nowrap}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:48px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:700;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),filter .24s var(--ease),border-color .24s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent-400);color:#0A1210;box-shadow:var(--shadow-2)}
.btn-primary:hover{filter:brightness(1.06);transform:translateX(1px);color:#0A1210}
.btn-ghost{border-color:rgba(255,255,255,.32);color:#fff;background:transparent}
.btn-ghost:hover{border-color:var(--accent-400);color:#fff}
.btn-ghost--dark{border-color:var(--line);color:var(--text)}
.btn-ghost--dark:hover{border-color:var(--brand-600);color:var(--brand-600)}
.btn-dark{background:var(--ink-900);color:#fff}
.btn-dark:hover{color:#fff;filter:brightness(1.15)}
.btn-lg{height:56px;padding:0 28px;font-size:16px}
.btn-sm{height:38px;padding:0 16px;font-size:13px}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}
.btn.is-loading{pointer-events:none;opacity:.8}
.btn.is-loading::before{
  content:"";width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(10,18,16,.25);border-top-color:#0A1210;
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.btn-note{font-size:12px;font-weight:600;color:var(--brand-600);background:rgba(14,107,74,.12);padding:3px 8px;border-radius:6px}
.btn-primary .btn-note{background:rgba(10,18,16,.12);color:#0A1210}

/* 徽章 */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-badge);font-size:12px;font-weight:700;background:var(--brand-050);color:var(--brand-600)}
.badge-accent{background:var(--warn-500);color:#fff}
.badge-outline{border:1px solid var(--accent-400);color:var(--brand-600);background:transparent}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.site-header.is-solid{
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  box-shadow:0 10px 30px -24px rgba(10,18,16,.7);
  backdrop-filter:blur(10px);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:6px;font-size:19px;font-weight:800;letter-spacing:-.01em;color:#fff}
.logo-dot{width:6px;height:6px;border-radius:50%;background:var(--accent-400);display:inline-block}
.site-header.is-solid .logo{color:var(--text)}
.nav{flex:1;display:flex;justify-content:center}
.nav-list{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;font-size:15px;font-weight:600;color:rgba(255,255,255,.78);padding:6px 0}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--brand-600);transition:width .2s var(--ease)}
.nav-link:hover{color:var(--accent-400)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:#fff}
.nav-link.active::after{width:100%;background:var(--accent-400)}
.site-header.is-solid .nav-link{color:var(--text-2)}
.site-header.is-solid .nav-link:hover{color:var(--brand-600)}
.site-header.is-solid .nav-link.active{color:var(--brand-600)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.28)}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.site-header.is-solid .nav-toggle{border-color:var(--line)}
.site-header.is-solid .nav-toggle span,.site-header.is-solid .nav-toggle span::before,.site-header.is-solid .nav-toggle span::after{background:var(--text)}

.drawer{position:fixed;inset:0;z-index:120;background:var(--ink-900);color:#fff;display:flex;flex-direction:column;padding:20px;transform:translateX(100%);transition:transform .28s var(--ease);overflow-y:auto}
.drawer.open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid rgba(255,255,255,.12)}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.24);font-size:22px;line-height:1;display:flex;align-items:center;justify-content:center;color:#fff}
.drawer-nav{display:flex;flex-direction:column;padding:20px 0;gap:4px}
.drawer-link{font-size:20px;font-weight:700;color:rgba(255,255,255,.85);padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.08)}
.drawer-link.active{color:var(--accent-400)}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:auto;padding-top:24px}

/* Hero */
.hero{position:relative;background:var(--ink-900);color:#fff;overflow:hidden;padding:72px 0 84px}
.hero-bg{position:absolute;inset:0;pointer-events:none;background-image:
  radial-gradient(900px 460px at 80% 4%,rgba(20,140,96,.42),transparent 62%),
  radial-gradient(560px 320px at 4% 96%,rgba(201,242,76,.12),transparent 62%),
  repeating-linear-gradient(30deg,rgba(201,242,76,.07) 0 2px,transparent 2px 16px),
  radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:auto,auto,auto,16px 16px;}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr 1.02fr;gap:56px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;border:1px solid rgba(201,242,76,.35);font-size:13px;font-weight:600;color:var(--accent-400);background:rgba(201,242,76,.08)}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--accent-400);display:block}
.hero h1{margin-top:20px;font-size:46px;line-height:1.22;font-weight:800;letter-spacing:-.02em}
.hero-sub{margin-top:18px;font-size:18px;color:rgba(255,255,255,.76);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px;padding-top:28px;border-top:1px solid rgba(255,255,255,.14)}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats .val{font-size:26px;font-weight:800;color:var(--accent-400)}
.hero-stats .cap{font-size:13px;color:rgba(255,255,255,.62)}
.hero-visual{position:relative}
.device-frame{position:relative;border-radius:22px;overflow:hidden;border:1px solid rgba(201,242,76,.22);box-shadow:0 40px 80px -40px rgba(0,0,0,.85);background:var(--ink-800)}
.device-frame img{width:100%;aspect-ratio:16/10;object-fit:cover}
.float-card{position:absolute;display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:14px;background:rgba(10,18,16,.9);border:1px solid rgba(201,242,76,.28);backdrop-filter:blur(6px);font-size:13px;font-weight:600}
.float-card .fc-val{color:var(--accent-400);font-weight:800}
.float-card--score{left:-18px;bottom:34px}
.float-card--ver{right:-14px;top:26px}
.float-card small{display:block;font-size:11px;color:rgba(255,255,255,.55);font-weight:500}

/* 价值主张 */
.asym-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease)}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-3)}
.card-feature{padding:32px;display:flex;flex-direction:column;gap:18px}
.card-feature--wide{grid-column:span 2;flex-direction:row;align-items:center;gap:32px}
.card-feature--wide .cf-copy{flex:1}
.card-feature--wide img{width:46%;aspect-ratio:16/10;object-fit:cover;border-radius:14px}
.cf-icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:var(--brand-050);color:var(--brand-600);flex:none}
.cf-icon svg{width:22px;height:22px}
.card-feature h3{font-size:18px;font-weight:800;margin-bottom:8px}
.card-feature p{color:var(--text-2);font-size:15px}

/* 轮播 */
.carousel-wrap{margin-top:8px;background:var(--ink-900);border-radius:26px;padding:26px;box-shadow:var(--shadow-2)}
.carousel-stage{position:relative;border-radius:16px;overflow:hidden;background:var(--ink-800)}
.slides{display:flex;transition:transform .45s var(--ease)}
.slide{flex:0 0 100%;position:relative}
.slide img{width:100%;aspect-ratio:16/9;object-fit:cover}
.slide-cap{position:absolute;left:16px;bottom:16px;padding:6px 14px;border-radius:999px;background:rgba(10,18,16,.78);color:#fff;font-size:13px;font-weight:600}
.car-arrow{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.35);color:#fff;display:flex;align-items:center;justify-content:center;background:rgba(10,18,16,.5);transition:border-color .24s var(--ease),background .24s var(--ease)}
.car-arrow:hover{border-color:var(--accent-400);background:rgba(10,18,16,.8)}
.car-arrow.prev{left:16px}
.car-arrow.next{right:16px}
.car-foot{display:flex;align-items:center;gap:20px;margin-top:20px;flex-wrap:wrap}
.thumbs{display:flex;gap:12px;flex:1}
.thumb{width:88px;border-radius:10px;overflow:hidden;border:2px solid transparent;opacity:.55;transition:opacity .24s var(--ease),border-color .24s var(--ease);padding:0}
.thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
.thumb.active{opacity:1;border-color:var(--accent-400)}
.progress{width:180px;height:4px;border-radius:999px;background:rgba(255,255,255,.18);overflow:hidden}
.progress span{display:block;height:100%;width:0;background:var(--accent-400)}

/* 系统要求 */
.spec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.spec-card{padding:22px}
.spec-card .spec-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding-top:12px;margin-top:12px;border-top:1px dashed var(--line)}
.spec-card h3{font-size:16px;font-weight:800}
.spec-card .spec-name{font-size:14px;color:var(--text-3)}
.spec-card .spec-val{font-size:15px;font-weight:700;color:var(--brand-600)}
.spec-card .spec-hint{font-size:13px;color:var(--text-2);margin-top:10px}
.acc-table{margin-top:22px;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;overflow:hidden}
.acc-table summary{padding:18px 22px;font-weight:700;cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:12px}
.acc-table summary::-webkit-details-marker{display:none}
.acc-table summary::after{content:"展开";font-size:13px;color:var(--brand-600);font-weight:700}
.acc-table[open] summary::after{content:"收起"}
.table-scroll{overflow-x:auto;padding:0 22px 22px}
table.spec-table{width:100%;border-collapse:separate;border-spacing:0;min-width:640px;font-size:14px}
table.spec-table th,table.spec-table td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}
table.spec-table thead th{background:var(--brand-050);color:var(--brand-600);font-weight:700}
table.spec-table tbody tr:nth-child(even){background:#FAFBF9}
table.spec-table td.num{font-variant-numeric:tabular-nums}

/* 评价墙 */
.reviews{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card-review{position:relative;padding:26px;overflow:hidden}
.card-review:nth-child(even){margin-top:24px}
.quote-mark{position:absolute;right:18px;top:2px;font-size:76px;line-height:1;color:var(--brand-050);font-weight:800;pointer-events:none}
.rev-head{display:flex;align-items:center;gap:12px}
.avatar{width:44px;height:44px;border-radius:50%;background:var(--brand-050);color:var(--brand-600);display:flex;align-items:center;justify-content:center;font-weight:800;flex:none}
.rev-name{font-size:15px;font-weight:700}
.rev-role{font-size:13px;color:var(--text-3)}
.stars{display:flex;gap:2px;margin:12px 0 10px;color:var(--accent-400)}
.stars svg{width:14px;height:14px}
.card-review p{color:var(--text-2);font-size:15px;position:relative;z-index:1}

/* 下载区 */
.download-panel{background:var(--ink-900);border-radius:28px;padding:56px 40px;position:relative;overflow:hidden;text-align:center}
.download-panel::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(30deg,rgba(201,242,76,.06) 0 2px,transparent 2px 16px);pointer-events:none}
.download-panel > *{position:relative}
.download-panel .btn-lg{margin-top:26px}
.channels{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:32px}
.channel-btn{display:flex;flex-direction:column;align-items:flex-start;gap:4px;padding:16px 18px;border-radius:14px;border:1px solid rgba(255,255,255,.22);color:#fff;text-align:left;transition:border-color .24s var(--ease),background .24s var(--ease),transform .24s var(--ease)}
.channel-btn:hover{border-color:var(--accent-400);transform:translateY(-2px);color:#fff}
.channel-btn .ch-name{font-size:15px;font-weight:700}
.channel-btn .ch-meta{font-size:12px;color:rgba(255,255,255,.6)}
.qr-box{width:120px;height:120px;border-radius:14px;overflow:hidden;border:1px solid rgba(201,242,76,.3);margin:32px auto 0;background:var(--ink-800)}
.qr-box img{width:100%;height:100%;object-fit:cover}
.safe-note{margin-top:16px;font-size:12px;color:rgba(255,255,255,.55)}

/* 资讯 */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card-post{display:flex;flex-direction:column;overflow:hidden}
.post-cover{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--brand-050)}
.post-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
.post-body h3{font-size:18px;font-weight:800;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body p{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.post-meta .more{font-weight:700;color:var(--brand-600)}
.empty-state{grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;padding:64px 24px;border:1px dashed var(--line);border-radius:var(--r-card);background:#fff;color:var(--text-2)}
.empty-state .empty-icon{width:56px;height:56px;border-radius:50%;background:var(--brand-050);display:flex;align-items:center;justify-content:center;color:var(--brand-600)}
.skeleton{border-radius:var(--r-card);background:linear-gradient(90deg,#EEF1EC 25%,#F7F8F6 37%,#EEF1EC 63%);background-size:400% 100%;animation:sweep 1.4s infinite linear;height:280px}
@keyframes sweep{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* FAQ */
.faq{display:flex;flex-direction:column;gap:14px;max-width:880px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .24s var(--ease)}
.faq-item.open{border-color:rgba(201,242,76,.9)}
.faq-q{width:100%;display:flex;align-items:center;gap:14px;padding:20px 22px;text-align:left;font-size:16px;font-weight:700}
.faq-num{font-size:14px;font-weight:800;color:var(--brand-600);font-variant-numeric:tabular-nums}
.faq-arrow{margin-left:auto;width:24px;height:24px;display:flex;align-items:center;justify-content:center;color:var(--text-3);transition:transform .24s var(--ease)}
.faq-item.open .faq-arrow{transform:rotate(180deg);color:var(--brand-600)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a-inner{padding:0 22px 22px 60px;color:var(--text-2);font-size:15px;line-height:1.8}

/* CTA 条 */
.cta-bar{background:var(--ink-900);border-radius:26px;padding:38px 40px;display:flex;align-items:center;justify-content:space-between;gap:24px;position:relative;overflow:hidden}
.cta-bar::before{content:"";position:absolute;inset:0;background-image:radial-gradient(600px 240px at 88% 10%,rgba(20,140,96,.4),transparent 62%);pointer-events:none}
.cta-bar > *{position:relative}
.cta-bar h2{color:#fff;font-size:24px;font-weight:800}
.cta-bar p{color:rgba(255,255,255,.68);font-size:15px;margin-top:8px}

/* 页脚 */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.7);padding:72px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand .logo{color:#fff}
.footer-brand p{margin-top:14px;font-size:14px;max-width:280px}
.footer-qr{width:104px;height:104px;border-radius:12px;overflow:hidden;border:1px solid rgba(201,242,76,.3);margin-top:18px}
.footer-qr img{width:100%;height:100%;object-fit:cover}
.footer-col h3{color:#fff;font-size:15px;font-weight:800;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68)}
.footer-col a:hover{color:var(--accent-400)}
.footer-contact li{font-size:14px;margin-bottom:10px}
.footer-contact .fc-key{color:rgba(255,255,255,.45);font-size:12px;display:block}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 0 30px;font-size:13px;flex-wrap:wrap}
.footer-bottom a{color:rgba(255,255,255,.68)}

/* 响应式 */
@media (max-width:1280px){
  .hero h1{font-size:40px}
}
@media (max-width:1024px){
  .section{padding:64px 0}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:36px}
  .asym-grid{grid-template-columns:1fr 1fr}
  .card-feature--wide{grid-column:span 2;flex-direction:column;align-items:flex-start}
  .card-feature--wide img{width:100%}
  .spec-grid{grid-template-columns:1fr 1fr}
  .channels{grid-template-columns:1fr 1fr}
  .post-grid{grid-template-columns:1fr 1fr}
  .reviews{grid-template-columns:1fr}
  .card-review:nth-child(even){margin-top:0}
  .nav{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn-ghost{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .hero{padding:48px 0 56px}
  .hero h1{font-size:32px}
  .hero-sub{font-size:16px}
  .hero-stats{grid-template-columns:1fr 1fr;gap:20px}
  .asym-grid{grid-template-columns:1fr}
  .card-feature--wide{grid-column:span 1}
  .spec-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .download-panel{padding:40px 22px}
  .float-card--score{left:8px;bottom:12px}
  .float-card--ver{right:8px;top:12px}
  .carousel-wrap{padding:16px}
  .progress{width:100%}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero h1{font-size:28px}
  .hero-actions .btn{width:100%}
  .channels{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .thumb{width:64px}
  .faq-a-inner{padding-left:22px}
}

/* roulang page: article */
:root{
  --ink-900:#0A1210;
  --ink-800:#12201B;
  --ink-700:#1B2C26;
  --brand-600:#0E6B4A;
  --brand-500:#148C60;
  --brand-050:#E8F4EE;
  --accent-400:#C9F24C;
  --warn-500:#FF6A2B;
  --paper:#F6F7F4;
  --card:#FFFFFF;
  --line:#E3E8E1;
  --text:#101613;
  --text-2:#4A554F;
  --text-3:#87928B;
  --r-card:18px;
  --r-input:12px;
  --r-pill:999px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(10,18,16,.06);
  --sh-2:0 12px 32px -12px rgba(10,18,16,.18);
  --sh-3:0 20px 44px -16px rgba(10,18,16,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:240ms;
  --container:1200px;
  --s8:8px; --s12:12px; --s16:16px; --s24:24px; --s32:32px; --s48:48px; --s64:64px; --s88:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-600);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--brand-500);}
ul,ol{margin:0;padding:0;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;color:var(--text);line-height:1.3;}
p{margin:0;}
button{font-family:inherit;}
.num,.tabular{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
:focus-visible{outline:2px solid var(--accent-400);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 阅读进度 ============ */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--accent-400);z-index:120;transition:width 120ms linear;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{height:72px;display:flex;align-items:center;gap:var(--s24);}
.logo{
  display:inline-flex;align-items:center;gap:8px;
  font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--text);
  white-space:nowrap;
}
.logo:hover{color:var(--text);}
.logo-dot{width:6px;height:6px;border-radius:50%;background:var(--accent-400);flex:0 0 6px;}
.nav{flex:1;min-width:0;}
.nav-list{display:flex;align-items:center;gap:2px;list-style:none;}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 12px;font-size:15px;color:var(--text-2);
  border-radius:8px;white-space:nowrap;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--accent-400);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform 200ms var(--ease);
}
.nav-link:hover{color:var(--brand-600);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand-600);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--text);
  border-radius:2px;transform:translateX(-50%);
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.nav-toggle span{top:calc(50% - 1px);}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:rotate(45deg);top:0;}
.nav-toggle[aria-expanded="true"] span::after{transform:rotate(-45deg);top:0;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--dur) var(--ease),filter var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease),background var(--dur) var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--accent-400);color:var(--ink-900);box-shadow:var(--sh-2);}
.btn-primary:hover{filter:brightness(1.06);color:var(--ink-900);transform:translateX(1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600);}
.btn-dark{background:var(--brand-600);color:#fff;}
.btn-dark:hover{background:var(--brand-500);color:#fff;transform:translateX(1px);}
.btn-lg{padding:16px 30px;font-size:16px;}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* ============ 面包屑 ============ */
.crumb-wrap{padding-top:22px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3);}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:#C7CFC8;}
.breadcrumb .current{color:var(--text-3);max-width:360px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章主体 ============ */
.article-main{padding:0 0 80px;}
.article-shell{max-width:800px;margin:0 auto;}
.article-head{padding:26px 0 22px;border-bottom:1px solid var(--line);}
.article-title{font-size:38px;line-height:1.35;font-weight:800;letter-spacing:-.01em;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:14px;color:var(--text-3);}
.article-meta .dot{color:#C7CFC8;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-badge);
  font-size:12px;font-weight:600;line-height:1.6;
  background:var(--brand-050);color:var(--brand-600);
  border:1px solid rgba(14,107,74,.14);
}
.badge-outline{background:transparent;border:1px solid rgba(201,242,76,.9);color:#3E6B12;}
.badge-accent{background:var(--warn-500);border-color:var(--warn-500);color:#fff;}

/* ============ 正文排版 ============ */
.article-body{padding-top:30px;font-size:17px;line-height:1.85;color:#1A221E;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;font-size:24px;line-height:1.45;
  margin:40px 0 16px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.32em;width:4px;height:18px;
  background:var(--accent-400);border-radius:2px;
}
.article-body h3{font-size:21px;line-height:1.5;margin:32px 0 12px;}
.article-body h4{font-size:18px;line-height:1.5;margin:26px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;}
.article-body li{margin-bottom:10px;}
.article-body ul li::marker{color:var(--brand-500);}
.article-body ol li::marker{color:var(--brand-500);font-weight:700;}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;
  border-left:4px solid var(--brand-600);
  background:var(--brand-050);border-radius:0 12px 12px 0;
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:20px auto;max-width:100%;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;}
.article-body a{border-bottom:1px solid rgba(14,107,74,.28);}
.article-body a:hover{border-bottom-color:var(--brand-600);}
.article-body code{
  font-family:"JetBrains Mono",Consolas,Monaco,"Courier New",monospace;
  font-size:14px;background:var(--brand-050);color:var(--brand-600);
  padding:2px 7px;border-radius:6px;
}
.article-body pre{
  background:var(--ink-900);color:#DCE6E0;
  border-radius:12px;padding:18px 20px;overflow-x:auto;
  margin:22px 0;font-size:14px;line-height:1.75;
}
.article-body pre code{background:transparent;color:inherit;padding:0;font-size:14px;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:0;}
.article-body .table-wrap,.article-body > table{display:block;}
.article-body table{overflow-x:auto;border-radius:12px;border:1px solid var(--line);}
.article-body thead th{background:var(--brand-050);color:var(--brand-600);font-weight:700;}
.article-body th,.article-body td{
  padding:11px 14px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap;
}
.article-body tbody tr:nth-child(even){background:#FAFBF9;}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0;}

/* ============ 空态 ============ */
.empty-state{
  margin:40px 0;padding:64px 24px;text-align:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
}
.empty-state .ico{
  width:64px;height:64px;margin:0 auto 20px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-050);color:var(--brand-600);font-size:26px;
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:24px;}

/* ============ 标签 / 分享 ============ */
.article-foot{margin-top:44px;padding-top:24px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--brand-050);color:var(--brand-600);
  font-size:13px;font-weight:600;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.tag:hover{background:var(--brand-600);color:#fff;}
.share-row{display:flex;align-items:center;gap:10px;margin-top:22px;}
.share-row .label{font-size:14px;color:var(--text-3);margin-right:4px;}
.share-btn{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:#fff;color:var(--text-2);
  font-size:15px;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.share-btn:hover{border-color:var(--brand-600);color:var(--brand-600);transform:translateY(-2px);}

/* ============ 上下篇 ============ */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px;}
.pager-item{
  display:block;padding:20px 22px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.pager-item:hover{transform:translateY(-2px);box-shadow:var(--sh-3);border-color:rgba(14,107,74,.35);}
.pager-item .k{font-size:12px;color:var(--brand-600);font-weight:700;letter-spacing:.06em;}
.pager-item h3{font-size:16px;line-height:1.5;margin-top:8px;color:var(--text);}
.pager-item.next{text-align:right;}

/* ============ 相关推荐 ============ */
.section{padding:72px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-title{position:relative;font-size:26px;padding-left:16px;}
.section-title::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:20px;
  background:var(--accent-400);border-radius:2px;
}
.section-more{font-size:14px;color:var(--text-2);display:inline-flex;align-items:center;gap:6px;}
.section-more:hover{color:var(--brand-600);}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);}
.card-post{
  display:flex;flex-direction:column;overflow:hidden;color:inherit;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.card-post:hover{transform:translateY(-2px);box-shadow:var(--sh-3);color:inherit;}
.card-post .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-050);}
.card-post .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease);}
.card-post:hover .thumb img{transform:scale(1.04);}
.card-post .body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.card-post h3{font-size:18px;line-height:1.45;margin:10px 0 8px;color:var(--text);}
.card-post .desc{font-size:14px;line-height:1.7;color:var(--text-2);margin-bottom:16px;}
.card-post .foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);padding-top:12px;border-top:1px solid var(--line);
}
.card-post .foot .go{color:var(--brand-600);font-weight:600;display:inline-flex;align-items:center;gap:5px;}

.back-row{display:flex;justify-content:center;margin-top:44px;}

/* ============ 底部 CTA ============ */
.cta-band{margin-top:80px;background:var(--ink-900);position:relative;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(30deg,rgba(201,242,76,.06) 0 2px,transparent 2px 14px);
  pointer-events:none;
}
.cta-inner{
  position:relative;padding:56px 0;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:28px;line-height:1.35;}
.cta-inner p{color:rgba(255,255,255,.7);font-size:15px;margin-top:10px;}

/* ============ 页脚 ============ */
.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 1.2fr;gap:40px;}
.footer-brand .logo{color:#fff;font-size:19px;}
.footer-brand > p{margin:16px 0 20px;font-size:14px;line-height:1.8;max-width:330px;color:rgba(255,255,255,.66);}
.footer-qr img{width:110px;height:110px;border-radius:12px;object-fit:cover;border:1px solid rgba(255,255,255,.12);}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:18px;letter-spacing:.01em;}
.footer-col ul{display:grid;gap:11px;list-style:none;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col a:hover{color:var(--accent-400);}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.68);display:flex;gap:8px;flex-wrap:wrap;}
.footer-contact .fc-key{color:rgba(255,255,255,.42);min-width:78px;}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62);}
.footer-bottom a:hover{color:var(--accent-400);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .container{padding:0 20px;}
  .header-inner{gap:16px;}
  .nav{
    position:fixed;left:0;right:0;top:72px;bottom:0;
    background:#fff;padding:24px;
    overflow-y:auto;transform:translateX(100%);
    transition:transform var(--dur) var(--ease);
    box-shadow:-12px 0 40px -20px rgba(10,18,16,.3);
  }
  .nav.open{transform:translateX(0);}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px;}
  .nav-link{font-size:20px;font-weight:600;padding:14px 4px;}
  .nav-link::after{left:4px;right:auto;width:28px;bottom:8px;}
  .nav-toggle{display:block;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:56px 0 0;}
}
@media (max-width:768px){
  .header-inner{height:64px;}
  .nav{top:64px;padding:20px 16px;}
  .nav-actions .btn-ghost{display:none;}
  .article-title{font-size:30px;}
  .article-body{font-size:16px;padding-top:24px;}
  .article-body h2{font-size:21px;margin-top:32px;}
  .article-body h3{font-size:19px;}
  .pager{grid-template-columns:1fr;}
  .pager-item.next{text-align:left;}
  .post-grid{grid-template-columns:1fr 1fr;gap:18px;}
  .cta-inner{padding:44px 0;flex-direction:column;align-items:flex-start;gap:22px;}
  .cta-inner h2{font-size:23px;}
  .cta-band{margin-top:56px;}
  .crumb-wrap{padding-top:16px;}
  .breadcrumb .current{max-width:200px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .logo{font-size:17px;}
  .article-title{font-size:26px;}
  .post-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .btn-sm{padding:8px 13px;font-size:13px;}
}

/* roulang page: category1 */
:root{
  --ink-900:#0A1210;
  --ink-800:#12201B;
  --ink-700:#1B2C26;
  --brand-600:#0E6B4A;
  --brand-500:#148C60;
  --brand-050:#E8F4EE;
  --accent-400:#C9F24C;
  --warn-500:#FF6A2B;
  --paper:#F6F7F4;
  --card:#FFFFFF;
  --line:#E3E8E1;
  --text:#101613;
  --text-2:#4A554F;
  --text-3:#87928B;

  --radius-card:18px;
  --radius-input:12px;
  --radius-badge:6px;
  --radius-pill:999px;

  --shadow-1:0 1px 2px rgba(10,18,16,.06);
  --shadow-2:0 12px 32px -12px rgba(10,18,16,.18);
  --shadow-3:0 20px 44px -16px rgba(10,18,16,.28);

  --gap-1:8px;
  --gap-2:12px;
  --gap-3:16px;
  --gap-4:24px;
  --gap-5:32px;
  --gap-6:48px;
  --gap-7:64px;
  --gap-8:88px;

  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:240ms;
}

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

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

body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;border:0;}
a{color:var(--brand-600);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--brand-500);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--accent-400);outline-offset:2px;border-radius:4px;}

.num{font-variant-numeric:tabular-nums;}

.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:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(10,18,16,.02);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:var(--gap-4);
  height:72px;
}
.logo{
  display:inline-flex;
  align-items:center;
  font-size:19px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--text);
  white-space:nowrap;
}
.logo:hover{color:var(--text);}
.logo-dot{
  width:8px;
  height:8px;
  margin-left:6px;
  border-radius:2px;
  background:var(--accent-400);
}
.nav{margin-left:auto;}
.nav-list{
  display:flex;
  align-items:center;
  gap:6px;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:4px;
  height:2px;
  background:var(--brand-600);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform 200ms var(--ease);
}
.nav-link:hover{color:var(--brand-600);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text);font-weight:600;}
.nav-link.active::after{background:var(--accent-400);transform:scaleX(1);}

.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:var(--gap-3);
}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;
  left:50%;
  width:18px;
  height:2px;
  background:var(--text);
  border-radius:2px;
  transform:translateX(-50%);
  transition:transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.nav-toggle span{top:21px;}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease), filter var(--dur) var(--ease);
}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-lg{padding:16px 30px;font-size:17px;}
.btn-primary{
  background:var(--accent-400);
  color:var(--ink-900);
  box-shadow:var(--shadow-2);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateX(1px);color:var(--ink-900);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border-color:var(--line);
}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600);transform:translateX(1px);}
.btn-dark{
  background:var(--accent-400);
  color:var(--ink-900);
  box-shadow:var(--shadow-2);
}
.btn-dark:hover{filter:brightness(1.06);transform:translateX(1px);color:var(--ink-900);}
.btn-outline-light{
  background:transparent;
  color:#EAF3EE;
  border-color:rgba(201,242,76,.45);
}
.btn-outline-light:hover{color:var(--accent-400);border-color:var(--accent-400);transform:translateX(1px);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* ============ 面包屑 ============ */
.crumb-bar{
  background:var(--ink-900);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:14px 0;
  font-size:13.5px;
  color:rgba(234,243,238,.6);
}
.crumb a{color:rgba(234,243,238,.78);}
.crumb a:hover{color:var(--accent-400);}
.crumb .sep{color:rgba(234,243,238,.3);}
.crumb .current{color:var(--accent-400);}

/* ============ 页面 Hero ============ */
.page-hero{
  position:relative;
  background:var(--ink-900);
  color:#EAF3EE;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(30deg, rgba(201,242,76,.06) 0 1px, transparent 1px 14px);
  opacity:.9;
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  width:560px;
  height:560px;
  right:-140px;
  top:-180px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(20,140,96,.5), rgba(10,18,16,0) 68%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1.08fr .92fr;
  align-items:center;
  gap:var(--gap-7);
  padding:76px 0 84px;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  font-size:13px;
  letter-spacing:.04em;
  color:var(--accent-400);
  border:1px solid rgba(201,242,76,.32);
  border-radius:var(--radius-pill);
  background:rgba(201,242,76,.06);
}
.hero-tag::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--accent-400);
}
.page-hero h1{
  margin-top:20px;
  font-size:44px;
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.01em;
  color:#fff;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--accent-400);
}
.hero-lead{
  margin-top:18px;
  max-width:560px;
  font-size:16.5px;
  line-height:1.85;
  color:rgba(234,243,238,.76);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:var(--gap-6);
  margin-top:36px;
  padding-top:26px;
  border-top:1px solid rgba(255,255,255,.09);
}
.hero-meta div strong{
  display:block;
  font-size:26px;
  font-weight:800;
  color:var(--accent-400);
  letter-spacing:-.01em;
}
.hero-meta div span{
  font-size:13px;
  color:rgba(234,243,238,.6);
}
.hero-media{
  position:relative;
}
.hero-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:20px;
  border:1px solid rgba(201,242,76,.18);
}
.hero-float{
  position:absolute;
  left:-18px;
  bottom:-22px;
  display:flex;
  align-items:center;
  gap:10px;
  padding:12px 16px;
  border-radius:14px;
  background:var(--ink-800);
  border:1px solid rgba(201,242,76,.22);
}
.hero-float b{
  font-size:15px;
  color:var(--accent-400);
}
.hero-float small{
  display:block;
  font-size:12px;
  color:rgba(234,243,238,.6);
}

/* ============ 通用板块 ============ */
.section{padding:var(--gap-8) 0;}
.section-tight{padding:var(--gap-7) 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:var(--gap-4);
  margin-bottom:var(--gap-6);
}
.section-head h2{
  position:relative;
  padding-left:16px;
  font-size:30px;
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.35;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:4px;
  height:22px;
  border-radius:2px;
  background:var(--accent-400);
}
.section-head p{
  max-width:620px;
  font-size:15px;
  color:var(--text-2);
}

/* ============ 文档布局 ============ */
.doc-layout{
  display:grid;
  grid-template-columns:248px 1fr;
  gap:var(--gap-7);
  align-items:start;
}
.toc{
  position:sticky;
  top:96px;
  padding:22px 20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
}
.toc h2{
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--text);
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
}
.toc ol{
  margin-top:14px;
  counter-reset:toc;
}
.toc li{
  counter-increment:toc;
  margin-bottom:4px;
}
.toc a{
  display:flex;
  gap:10px;
  padding:8px 10px;
  font-size:14px;
  line-height:1.5;
  color:var(--text-2);
  border-radius:10px;
  border-left:2px solid transparent;
}
.toc a::before{
  content:counter(toc,decimal-leading-zero);
  font-size:12px;
  font-variant-numeric:tabular-nums;
  color:var(--text-3);
  padding-top:2px;
}
.toc a:hover{background:var(--brand-050);color:var(--brand-600);border-left-color:var(--brand-600);}
.toc a.is-current{background:var(--brand-050);color:var(--brand-600);border-left-color:var(--accent-400);font-weight:600;}
.toc-note{
  margin-top:18px;
  padding-top:16px;
  border-top:1px dashed var(--line);
  font-size:13px;
  color:var(--text-3);
  line-height:1.7;
}

.doc-flow{display:flex;flex-direction:column;gap:var(--gap-7);}
.doc-block{
  scroll-margin-top:96px;
}
.doc-block h2{
  position:relative;
  padding-left:16px;
  font-size:26px;
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.4;
}
.doc-block h2::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  width:4px;
  height:20px;
  border-radius:2px;
  background:var(--brand-600);
}
.doc-block > p{
  margin-top:16px;
  color:var(--text-2);
  line-height:1.85;
}

.feature-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:var(--gap-6);
  align-items:center;
  margin-top:var(--gap-5);
  padding:var(--gap-5);
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.feature-row:hover{box-shadow:var(--shadow-3);transform:translateY(-2px);}
.feature-row.reverse .feature-media{order:2;}
.feature-media img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:14px;
}
.feature-body h3{
  font-size:21px;
  font-weight:700;
  letter-spacing:-.01em;
}
.feature-body p{
  margin-top:12px;
  font-size:15.5px;
  color:var(--text-2);
}
.point-list{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.point-list li{
  position:relative;
  padding-left:24px;
  font-size:15px;
  color:var(--text-2);
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:10px;
  height:10px;
  border-radius:3px;
  background:var(--brand-050);
  border:1px solid var(--brand-500);
}

/* 检查清单 */
.check-card{
  margin-top:var(--gap-5);
  padding:var(--gap-5);
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
}
.check-card h3{font-size:19px;font-weight:700;}
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:14px;
  margin-top:18px;
}
.check-item{
  display:flex;
  gap:12px;
  padding:16px;
  border:1px solid var(--line);
  border-radius:14px;
  background:var(--paper);
}
.check-item .mark{
  flex:0 0 24px;
  width:24px;
  height:24px;
  border-radius:8px;
  background:var(--brand-050);
  color:var(--brand-600);
  font-size:13px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
  line-height:1;
}
.check-item p{font-size:14.5px;color:var(--text-2);}
.check-item p b{display:block;font-size:15px;color:var(--text);margin-bottom:2px;}

/* 提示条 */
.notice{
  display:flex;
  gap:14px;
  margin-top:var(--gap-5);
  padding:18px 20px;
  border-left:4px solid var(--warn-500);
  border-radius:12px;
  background:#FFF4EE;
}
.notice b{color:#B2400B;font-size:15px;}
.notice p{font-size:14.5px;color:#7A4326;line-height:1.75;}

/* ============ 步骤条 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:var(--gap-4);
  margin-top:var(--gap-6);
}
.step-card{
  padding:26px 22px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-3);}
.step-card .idx{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:12px;
  background:var(--ink-900);
  color:var(--accent-400);
  font-weight:800;
  font-size:16px;
  font-variant-numeric:tabular-nums;
}
.step-card h3{margin-top:16px;font-size:18px;font-weight:700;}
.step-card p{margin-top:10px;font-size:14.5px;color:var(--text-2);}

/* ============ FAQ ============ */
.faq{
  margin-top:var(--gap-5);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  display:flex;
  align-items:center;
  gap:14px;
  width:100%;
  padding:20px 24px;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  color:var(--text);
  transition:background-color var(--dur) var(--ease);
}
.faq-q:hover{background:var(--brand-050);}
.faq-q .no{
  flex:0 0 auto;
  font-size:14px;
  font-weight:800;
  color:var(--brand-600);
  font-variant-numeric:tabular-nums;
}
.faq-q .arrow{
  margin-left:auto;
  flex:0 0 auto;
  width:12px;
  height:12px;
  border-right:2px solid var(--text-3);
  border-bottom:2px solid var(--text-3);
  transform:rotate(45deg);
  transition:transform var(--dur) var(--ease);
}
.faq-item.is-open .faq-q .arrow{transform:rotate(-135deg);border-color:var(--brand-600);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height var(--dur) var(--ease);
}
.faq-a-inner{
  padding:0 24px 22px 62px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
}
.faq-item.is-open .faq-a{max-height:420px;}

/* ============ 推荐卡片 ============ */
.cards-3{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:var(--gap-4);
}
.card-post{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.card-post:hover{transform:translateY(-2px);box-shadow:var(--shadow-3);}
.card-post .thumb{position:relative;}
.card-post .thumb img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}
.badge{
  display:inline-block;
  padding:4px 10px;
  font-size:12px;
  font-weight:600;
  border-radius:var(--radius-badge);
  background:var(--brand-050);
  color:var(--brand-600);
}
.badge-outline{
  background:transparent;
  border:1px solid rgba(201,242,76,.7);
  color:var(--brand-600);
}
.card-post .thumb .badge{
  position:absolute;
  left:12px;
  top:12px;
  background:rgba(10,18,16,.72);
  color:var(--accent-400);
  border:1px solid rgba(201,242,76,.5);
  backdrop-filter:blur(2px);
}
.card-post .body{
  padding:20px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.card-post h3{
  font-size:18px;
  line-height:1.5;
  font-weight:700;
  letter-spacing:-.01em;
}
.card-post h3 a{color:var(--text);}
.card-post h3 a:hover{color:var(--brand-600);}
.card-post .body p{
  margin-top:10px;
  font-size:14px;
  color:var(--text-2);
}
.card-post .foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:auto;
  padding-top:16px;
  font-size:13px;
  color:var(--text-3);
}
.card-post .foot span.num{font-variant-numeric:tabular-nums;}
.card-post .foot a{font-weight:600;font-size:13.5px;}

/* ============ CTA 通栏 ============ */
.cta-band{
  background:var(--ink-900);
  color:#EAF3EE;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(201,242,76,.14) 1px, transparent 1px);
  background-size:16px 16px;
  opacity:.5;
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--gap-5);
  padding:52px 0;
}
.cta-inner h2{
  font-size:27px;
  font-weight:800;
  letter-spacing:-.01em;
  color:#fff;
}
.cta-inner p{
  margin-top:10px;
  font-size:15px;
  color:rgba(234,243,238,.7);
}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-900);
  color:rgba(234,243,238,.72);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:var(--gap-6);
  padding-bottom:44px;
}
.footer-brand .logo{color:#fff;font-size:19px;}
.footer-brand p{
  margin-top:14px;
  max-width:320px;
  font-size:14px;
  line-height:1.8;
  color:rgba(234,243,238,.62);
}
.footer-qr{
  margin-top:18px;
  width:110px;
  padding:8px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(201,242,76,.2);
  border-radius:12px;
}
.footer-qr img{width:100%;border-radius:6px;}
.footer-col h3{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:14px;
  color:rgba(234,243,238,.68);
}
.footer-col a:hover{color:var(--accent-400);}
.footer-contact li{
  font-size:14px;
  color:rgba(234,243,238,.68);
}
.fc-key{
  display:inline-block;
  min-width:88px;
  color:rgba(234,243,238,.45);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;
  color:rgba(234,243,238,.5);
}
.footer-bottom a{color:rgba(234,243,238,.7);}
.footer-bottom a:hover{color:var(--accent-400);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-list{gap:2px;}
  .nav-link{padding:10px 8px;font-size:14px;}
  .hero-grid{grid-template-columns:1fr;gap:var(--gap-6);padding:56px 0 64px;}
  .page-hero h1{font-size:34px;}
  .doc-layout{grid-template-columns:1fr;gap:var(--gap-5);}
  .toc{position:static;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .cards-3{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--gap-5);}
}

@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .section-tight{padding:56px 0;}
  .nav-toggle{display:block;}
  .nav{
    position:fixed;
    inset:72px 0 0 0;
    margin:0;
    background:#fff;
    padding:24px 20px 120px;
    overflow-y:auto;
    transform:translateY(-12px);
    opacity:0;
    visibility:hidden;
    transition:opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur);
  }
  .nav.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-list{flex-direction:column;align-items:stretch;gap:6px;}
  .nav-link{
    font-size:20px;
    font-weight:600;
    padding:14px 8px;
    border-bottom:1px solid var(--line);
    border-radius:0;
  }
  .nav-link::after{left:8px;right:auto;width:26px;bottom:8px;}
  .nav-actions{margin-left:auto;}
  .nav-actions .btn-ghost{display:none;}
  .page-hero h1{font-size:28px;}
  .hero-lead{font-size:15.5px;}
  .hero-meta{gap:var(--gap-5);}
  .hero-meta div strong{font-size:22px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .section-head h2{font-size:24px;}
  .doc-block h2{font-size:22px;}
  .feature-row{grid-template-columns:1fr;gap:var(--gap-4);padding:20px;}
  .feature-row.reverse .feature-media{order:0;}
  .check-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .cards-3{grid-template-columns:1fr;}
  .faq-a-inner{padding:0 20px 20px 20px;}
  .faq-q{padding:16px 18px;font-size:15.5px;gap:10px;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:40px 0;}
  .cta-inner h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

@media (max-width:520px){
  .container{padding:0 16px;}
  .logo{font-size:16px;}
  .nav-actions .btn-primary{padding:9px 12px;font-size:13px;}
  .page-hero h1{font-size:25px;}
  .hero-float{left:0;bottom:-16px;padding:10px 12px;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-meta{gap:var(--gap-4);}
}

/* roulang page: category2 */
:root{
  --ink-900:#0A1210;
  --ink-800:#12201B;
  --ink-700:#1B2C26;
  --brand-600:#0E6B4A;
  --brand-500:#148C60;
  --brand-050:#E8F4EE;
  --accent-400:#C9F24C;
  --warn-500:#FF6A2B;
  --paper:#F6F7F4;
  --card:#FFFFFF;
  --line:#E3E8E1;
  --text:#101613;
  --text-2:#4A554F;
  --text-3:#87928B;
  --radius-card:18px;
  --radius-input:12px;
  --radius-badge:6px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(10,18,16,.06);
  --shadow-2:0 12px 32px -12px rgba(10,18,16,.18);
  --shadow-3:0 20px 44px -16px rgba(10,18,16,.28);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --s8:8px;--s12:12px;--s16:16px;--s24:24px;--s32:32px;--s48:48px;--s64:64px;--s88:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand-600);text-decoration:none;transition:color .24s var(--ease);}
a:hover{color:var(--brand-500);}
button{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.28;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.num,.tabular{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
:focus-visible{outline:2px solid var(--accent-400);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .26s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-2);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{
  display:inline-flex;align-items:center;gap:6px;
  font-size:18px;font-weight:800;letter-spacing:-.01em;
  color:var(--text);white-space:nowrap;
}
.logo:hover{color:var(--text);}
.logo-dot{width:8px;height:8px;border-radius:2px;background:var(--accent-400);display:inline-block;}
.nav{display:flex;align-items:center;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 12px;font-size:15px;color:var(--text-2);border-radius:10px;
  transition:color .24s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--brand-600);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--brand-600);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text);font-weight:700;}
.nav-link.active::after{background:var(--accent-400);transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-drawer-actions{display:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:var(--card);cursor:pointer;position:relative;padding:0;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .24s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);background:#fff;}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);background:#fff;}
.nav-toggle[aria-expanded="true"]{background:var(--ink-800);border-color:var(--ink-700);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),filter .22s var(--ease);
  text-align:center;
}
.btn:hover{transform:translateX(1px);}
.btn:active{transform:translateY(1px) translateX(1px);}
.btn-primary{background:var(--accent-400);color:var(--ink-900);box-shadow:var(--shadow-2);}
.btn-primary:hover{filter:brightness(1.06);color:var(--ink-900);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600);}
.btn-dark{background:var(--brand-600);color:#fff;}
.btn-dark:hover{filter:brightness(1.08);color:#fff;}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.28);color:#fff;}
.btn-outline-light:hover{border-color:var(--accent-400);color:var(--accent-400);}
.btn-lg{padding:15px 30px;font-size:16px;}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn:disabled,.btn.is-disabled{opacity:.45;pointer-events:none;cursor:not-allowed;}
.btn.is-loading{color:transparent;position:relative;pointer-events:none;}
.btn.is-loading::after{
  content:"";position:absolute;width:16px;height:16px;border-radius:50%;
  border:2px solid currentColor;border-top-color:transparent;
  left:50%;top:50%;margin:-8px 0 0 -8px;
  color:var(--ink-900);animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:var(--radius-badge);
  font-size:12px;font-weight:700;line-height:1.6;
  background:var(--brand-050);color:var(--brand-600);
}
.badge-outline{background:transparent;border:1px solid var(--accent-400);color:var(--ink-700);}
.badge-accent{background:var(--warn-500);color:#fff;}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--text-3);
}
.breadcrumb a{color:rgba(255,255,255,.78);}
.breadcrumb a:hover{color:var(--accent-400);}
.breadcrumb .sep{color:rgba(255,255,255,.4);}
.breadcrumb .current{color:rgba(255,255,255,.92);}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-color:var(--ink-900);
  background-image:
    linear-gradient(180deg,rgba(10,18,16,.88) 0%,rgba(10,18,16,.94) 100%),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  color:#fff;
  padding:56px 0 72px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(30deg,rgba(201,242,76,.09) 0 2px,transparent 2px 12px);
  opacity:.5;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;width:520px;height:520px;right:-140px;top:-180px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,140,96,.36) 0%,transparent 68%);
  pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
  margin-top:28px;
}
.hero-copy h1{
  font-size:clamp(28px,3.6vw,40px);
  line-height:1.3;margin-bottom:18px;
}
.hero-copy h1 .hl{color:var(--accent-400);}
.hero-lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.82);max-width:58ch;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero-tags .tag{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--radius-pill);
  font-size:13px;color:#fff;border:1px solid rgba(201,242,76,.3);background:rgba(201,242,76,.06);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
  margin-top:36px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12);
}
.hero-stats .stat b{display:block;font-size:24px;font-weight:800;color:var(--accent-400);line-height:1.2;}
.hero-stats .stat span{display:block;font-size:13px;color:rgba(255,255,255,.65);margin-top:4px;}
.hero-visual{position:relative;}
.hero-visual .shot{
  border-radius:18px;overflow:hidden;border:1px solid rgba(201,242,76,.18);
  box-shadow:0 24px 60px -24px rgba(0,0,0,.6);
}
.hero-visual .shot img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.float-card{
  position:absolute;background:rgba(255,255,255,.96);border-radius:14px;
  padding:12px 16px;box-shadow:var(--shadow-2);color:var(--text);
  border:1px solid var(--line);
}
.float-card .fc-k{font-size:12px;color:var(--text-3);display:block;}
.float-card .fc-v{font-size:16px;font-weight:800;color:var(--ink-900);}
.float-card.card-a{left:-16px;top:26px;}
.float-card.card-b{right:-8px;bottom:-18px;}

/* ---------- sections ---------- */
.section{padding:72px 0;}
.section-alt{background:var(--paper);}
.section-white{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-dark{
  background-color:var(--ink-900);
  background-image:repeating-linear-gradient(30deg,rgba(201,242,76,.07) 0 2px,transparent 2px 12px);
  color:#fff;
}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--brand-600);letter-spacing:.06em;
  text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--accent-400);}
.section-head h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16px;line-height:1.85;}
.section-dark .section-head h2{color:#fff;}
.section-dark .section-head p{color:rgba(255,255,255,.78);}
.section-dark .eyebrow{color:var(--accent-400);}

/* ---------- cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-3);}
.card-body{padding:24px;}
.card-body h3{font-size:18px;margin-bottom:10px;}
.card-body p{font-size:15px;color:var(--text-2);line-height:1.8;}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.card-feature .card-body{padding:28px;}
.card-feature{border-color:var(--line);}
.feature-badge{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;background:var(--brand-050);
  color:var(--brand-600);font-weight:800;font-size:16px;margin-bottom:16px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-top:16px;}
.dot-sep{width:4px;height:4px;border-radius:50%;background:var(--line);display:inline-block;}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-top:8px;}
.timeline::before{
  content:"";position:absolute;left:35px;top:20px;bottom:40px;width:1px;background:var(--line);
}
.tl-step{
  position:relative;display:grid;grid-template-columns:72px 1fr;gap:28px;
  padding-bottom:36px;
}
.tl-step:last-child{padding-bottom:0;}
.tl-num{
  position:relative;z-index:2;
  width:72px;height:72px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  background:var(--ink-900);color:var(--accent-400);
  font-size:24px;font-weight:800;letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
  box-shadow:var(--shadow-1);
}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 26px;box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-3);}
.tl-card h3{font-size:19px;margin-bottom:10px;}
.tl-card p{font-size:15px;color:var(--text-2);line-height:1.8;}
.tl-card p + p{margin-top:10px;}
.tl-figure{margin-top:18px;border-radius:14px;overflow:hidden;border:1px solid var(--line);}
.tl-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.tl-figure figcaption{font-size:13px;color:var(--text-3);padding:10px 14px;background:var(--brand-050);}

/* ---------- spec list & table ---------- */
.spec-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 22px;box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;gap:6px;
}
.spec-card .sk{font-size:13px;color:var(--text-3);}
.spec-card .sv{font-size:19px;font-weight:800;color:var(--ink-900);font-variant-numeric:tabular-nums;}
.spec-card .sd{font-size:13px;color:var(--text-3);line-height:1.7;}
.table-wrap{
  margin-top:32px;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;background:var(--card);box-shadow:var(--shadow-1);
}
table.spec-table{width:100%;border-collapse:collapse;font-size:15px;}
table.spec-table caption{
  text-align:left;padding:18px 22px;font-size:16px;font-weight:800;color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
table.spec-table th,table.spec-table td{padding:14px 22px;text-align:left;}
table.spec-table thead th{
  background:var(--brand-050);color:var(--brand-600);font-size:14px;font-weight:700;
  border-bottom:1px solid var(--line);
}
table.spec-table tbody tr:nth-child(even){background:#FBFCFA;}
table.spec-table tbody tr + tr td{border-top:1px solid var(--line);}
table.spec-table td{color:var(--text-2);}
table.spec-table td:first-child{color:var(--text);font-weight:700;}

/* ---------- checklist ---------- */
.check-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:18px 20px;box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.check-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-3);border-color:var(--brand-500);}
.check-item .ci-mark{
  flex:0 0 auto;width:28px;height:28px;border-radius:8px;
  background:var(--brand-050);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;
}
.check-item .ci-mark.warn{background:rgba(255,106,43,.12);color:var(--warn-500);}
.check-item h3{font-size:16px;margin-bottom:6px;}
.check-item p{font-size:14px;color:var(--text-2);line-height:1.75;}

/* ---------- FAQ ---------- */
.faq{max-width:900px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1);
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item:hover{border-color:var(--brand-500);}
.faq-item.is-open{border-color:var(--brand-600);box-shadow:var(--shadow-2);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:18px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
}
.faq-index{
  font-size:15px;font-weight:800;color:var(--brand-600);
  font-variant-numeric:tabular-nums;flex:0 0 auto;
}
.faq-text{flex:1;font-size:17px;font-weight:700;color:var(--text);}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .24s var(--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:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;transition:opacity .24s var(--ease);}
.faq-item.is-open .faq-icon{transform:rotate(180deg);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);}
.faq-a-inner{padding:0 22px 20px 56px;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ---------- CTA band ---------- */
.cta-band{padding:56px 0;}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  border:1px solid rgba(201,242,76,.2);border-radius:22px;
  background:rgba(255,255,255,.04);padding:36px 40px;
}
.cta-inner h2{font-size:clamp(20px,2.3vw,26px);margin-bottom:8px;}
.cta-inner p{color:rgba(255,255,255,.76);font-size:15px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink-900);color:rgba(255,255,255,.72);
  padding:64px 0 28px;font-size:14px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .logo{color:#fff;font-size:17px;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:34ch;}
.footer-qr{margin-top:18px;}
.footer-qr img{width:110px;height:110px;object-fit:cover;border-radius:12px;border:1px solid rgba(255,255,255,.14);}
.footer-col h3{
  font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{color:rgba(255,255,255,.68);font-size:14px;}
.footer-col ul li a:hover{color:var(--accent-400);}
.footer-contact li{display:flex;flex-wrap:wrap;gap:6px;color:rgba(255,255,255,.68);}
.fc-key{color:rgba(255,255,255,.42);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding-top:22px;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.66);}
.footer-bottom a:hover{color:var(--accent-400);}

/* ---------- recommended ---------- */
.rec-card .card-body{padding:22px 24px;}
.rec-card h3{font-size:17px;line-height:1.5;margin-bottom:8px;}
.rec-card p{font-size:14px;color:var(--text-2);}

/* ---------- states ---------- */
.state-block{
  display:flex;flex-direction:column;align-items:center;gap:10px;
  text-align:center;padding:44px 24px;border:1px dashed var(--line);border-radius:var(--radius-card);
  background:var(--card);color:var(--text-3);
}
.state-block .sb-icon{
  width:48px;height:48px;border-radius:14px;background:var(--brand-050);
  display:flex;align-items:center;justify-content:center;color:var(--brand-600);
  font-size:20px;font-weight:800;
}
.state-block strong{color:var(--text);font-size:16px;}
.state-block p{font-size:14px;}
.skeleton{
  border-radius:12px;
  background:linear-gradient(90deg,#EDF0EC 25%,#F7F9F6 37%,#EDF0EC 63%);
  background-size:400% 100%;
  animation:shimmer 1.4s ease infinite;
}
@keyframes shimmer{0%{background-position:100% 0;}100%{background-position:-100% 0;}}
.skeleton-line{height:14px;margin-bottom:10px;}
.skeleton-line.w60{width:60%;}
.skeleton-line.w80{width:80%;}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .container{padding:0 24px;}
}
@media (max-width:1024px){
  .nav{
    position:fixed;inset:0;z-index:80;
    background:var(--ink-900);
    flex-direction:column;justify-content:center;align-items:center;
    padding:96px 24px 140px;gap:8px;
    transform:translateX(100%);transition:transform .28s var(--ease);
    overflow-y:auto;
  }
  .nav.is-open{transform:translateX(0);}
  .nav-list{flex-direction:column;align-items:flex-start;gap:2px;width:100%;max-width:420px;}
  .nav-link{
    font-size:20px;font-weight:700;color:rgba(255,255,255,.88);
    padding:14px 4px;display:block;
  }
  .nav-link::after{left:4px;right:auto;width:0;bottom:10px;background:var(--accent-400);}
  .nav-link:hover::after,.nav-link.active::after{width:30px;transform:none;}
  .nav-link.active{color:#fff;}
  .nav-drawer-actions{
    display:flex;flex-direction:column;gap:12px;width:100%;max-width:420px;margin-top:28px;
  }
  .nav-drawer-actions .btn{width:100%;}
  .nav-toggle{display:block;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{order:-1;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:56px 0;}
}
@media (max-width:768px){
  .header-inner{height:64px;gap:12px;}
  .logo{font-size:16px;}
  .nav-actions .btn-ghost{display:none;}
  .page-hero{padding:40px 0 56px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .tl-step{grid-template-columns:56px 1fr;gap:16px;}
  .tl-num{width:56px;height:56px;border-radius:14px;font-size:19px;}
  .timeline::before{left:27px;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:28px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .faq-a-inner{padding-left:44px;}
  .table-wrap{border:0;box-shadow:none;background:transparent;}
  table.spec-table caption{padding:0 0 12px;}
  table.spec-table thead{display:none;}
  table.spec-table tbody tr{
    display:block;background:var(--card);border:1px solid var(--line);
    border-radius:14px;margin-bottom:12px;padding:6px 0;box-shadow:var(--shadow-1);
  }
  table.spec-table tbody tr + tr td{border-top:0;}
  table.spec-table td{
    display:flex;justify-content:space-between;gap:16px;
    padding:10px 16px;font-size:14px;
  }
  table.spec-table td::before{
    content:attr(data-label);color:var(--text-3);font-weight:500;flex:0 0 auto;
  }
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .grid-4{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category3 */
:root{
  --ink-900:#0A1210;
  --ink-800:#12201B;
  --ink-700:#1B2C26;
  --brand-600:#0E6B4A;
  --brand-500:#148C60;
  --brand-050:#E8F4EE;
  --accent-400:#C9F24C;
  --warn-500:#FF6A2B;
  --paper:#F6F7F4;
  --card:#FFFFFF;
  --line:#E3E8E1;
  --text:#101613;
  --text-2:#4A554F;
  --text-3:#87928B;
  --r-badge:6px;
  --r-input:12px;
  --r-card:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,18,16,.06);
  --sh-2:0 12px 32px -12px rgba(10,18,16,.18);
  --sh-3:0 20px 44px -16px rgba(10,18,16,.28);
  --dur:240ms;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.num,.stat-value,.matrix td,.matrix th,.meta-time{font-variant-numeric:tabular-nums}
.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}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  padding:12px 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;line-height:1.4;white-space:nowrap;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease),filter var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
  border:1px solid transparent;
}
.btn:hover{transform:translate(1px,-1px)}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--accent-400);outline-offset:2px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.btn-primary{background:var(--accent-400);color:var(--ink-900);box-shadow:var(--sh-2)}
.btn-primary:hover{background:#d4f95f;box-shadow:var(--sh-3)}
.btn-ghost{border-color:var(--line);background:transparent;color:var(--text)}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600);background:var(--brand-050)}
.btn-dark{background:var(--brand-600);color:#fff;box-shadow:var(--sh-2)}
.btn-dark:hover{background:var(--brand-500);box-shadow:var(--sh-3)}
.btn-on-dark{background:transparent;border-color:rgba(226,235,229,.32);color:#EAF2EC}
.btn-on-dark:hover{border-color:var(--accent-400);color:var(--accent-400)}
.btn-lg{padding:16px 30px;font-size:17px}
.btn-sm{padding:9px 16px;font-size:14px}

/* 徽章与标签 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-badge);
  font-size:12px;font-weight:700;line-height:1.6;
  background:var(--brand-050);color:var(--brand-600);
}
.badge-accent{background:var(--warn-500);color:#fff}
.badge-outline{background:transparent;border:1px solid var(--accent-400);color:var(--brand-600)}
.tag-ok{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:var(--r-badge);background:var(--brand-050);color:var(--brand-600);font-size:13px;font-weight:700}
.tag-warn{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:var(--r-badge);background:#FFF1E9;color:#B8431A;font-size:13px;font-weight:700}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--dur) var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{
  display:inline-flex;align-items:center;gap:6px;
  font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--text);
}
.logo-dot{width:6px;height:6px;border-radius:2px;background:var(--accent-400);display:inline-block}
.nav{flex:1 1 auto;min-width:0}
.nav-list{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-block;padding:10px 12px;
  font-size:15px;font-weight:600;color:var(--text-2);border-radius:8px;
  transition:color var(--dur) var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--accent-400);transform:scaleX(0);transform-origin:left;
  transition:transform 200ms var(--ease);
}
.nav-link:hover{color:var(--brand-600)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand-600)}
.nav-link.active::after{transform:scaleX(1)}
.nav-link:focus-visible{outline:2px solid var(--accent-400);outline-offset:2px}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);align-items:center;justify-content:center;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--text);border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform var(--dur) var(--ease)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 420px at 78% 12%,rgba(20,140,96,.34),transparent 62%),
    radial-gradient(600px 320px at 8% 88%,rgba(201,242,76,.16),transparent 60%),
    linear-gradient(180deg,var(--ink-900),var(--ink-800));
  color:#EAF2EC;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(120deg,rgba(255,255,255,.05) 0 2px,transparent 2px 14px);
  opacity:.55;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(201,242,76,.14) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:72px 0 84px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:#B9C7BF;transition:color var(--dur) var(--ease)}
.breadcrumb a:hover{color:var(--accent-400)}
.breadcrumb .sep{color:#5C6B64}
.breadcrumb .current{color:#8B9A93}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center}
.hero h1{font-size:46px;line-height:1.22;color:#fff;margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--accent-400)}
.hero-sub{font-size:17px;color:#B9C7BF;max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:36px}
.stat-bar{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
  padding-top:24px;border-top:1px solid rgba(226,235,229,.16);
}
.stat-value{font-size:26px;font-weight:800;color:var(--accent-400);line-height:1.2}
.stat-label{display:block;font-size:13px;color:#9FB0A8;margin-top:4px}
.hero-visual{position:relative}
.hero-shot{
  border-radius:var(--r-card);overflow:hidden;
  border:1px solid rgba(201,242,76,.18);
  box-shadow:0 30px 60px -30px rgba(0,0,0,.7);
  aspect-ratio:16/10;
}
.hero-shot img{width:100%;height:100%;object-fit:cover}
.float-card{
  position:absolute;background:rgba(18,32,27,.92);
  border:1px solid rgba(201,242,76,.28);border-radius:14px;
  padding:12px 16px;backdrop-filter:blur(3px);
}
.float-card strong{display:block;font-size:19px;color:var(--accent-400);font-weight:800}
.float-card span{font-size:12px;color:#9FB0A8}
.float-card.card-a{top:-18px;left:-18px}
.float-card.card-b{bottom:-20px;right:-6px}

/* 通用板块 */
.section{padding:88px 0}
.section-alt{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:800px;margin-bottom:44px}
.sec-head h2{font-size:30px;position:relative;padding-left:16px}
.sec-head h2::before{content:"";position:absolute;left:0;top:9px;width:4px;height:22px;border-radius:2px;background:var(--accent-400)}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand-600);letter-spacing:.04em;margin-bottom:12px}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent-400);border-radius:2px}

/* 对比卡 */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.compare-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:32px 28px;box-shadow:var(--sh-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.compare-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.compare-card.is-featured{border:1px solid var(--accent-400);box-shadow:var(--sh-2)}
.compare-card.is-featured::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(201,242,76,.10),transparent 40%);pointer-events:none;
}
.compare-head{position:relative;z-index:1;display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:8px}
.compare-head h3{font-size:21px}
.compare-note{position:relative;z-index:1;color:var(--text-2);font-size:15px;margin-bottom:22px}
.param-list{position:relative;z-index:1;display:grid;gap:12px;margin-bottom:22px}
.param-row{display:flex;justify-content:space-between;gap:16px;padding-bottom:12px;border-bottom:1px dashed var(--line);font-size:14px}
.param-row:last-child{border-bottom:0;padding-bottom:0}
.param-row .key{color:var(--text-3);flex:0 0 auto}
.param-row .val{color:var(--text);font-weight:600;text-align:right}
.feature-list{position:relative;z-index:1;display:grid;gap:10px}
.feature-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-2)}
.mark{flex:0 0 auto;width:20px;height:20px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;line-height:1;margin-top:3px}
.mark.ok{background:var(--brand-050);color:var(--brand-600)}
.mark.no{background:#FFF1E9;color:var(--warn-500)}

/* 参数矩阵 */
.matrix-wrap{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--card);box-shadow:var(--sh-1)}
.matrix{width:100%;border-collapse:collapse;font-size:14.5px}
.matrix thead th{
  background:var(--brand-050);color:var(--brand-600);
  text-align:left;font-size:13px;font-weight:800;letter-spacing:.02em;
  padding:14px 18px;white-space:nowrap;
}
.matrix tbody td{padding:16px 18px;border-top:1px solid var(--line);color:var(--text-2);vertical-align:middle}
.matrix tbody tr:nth-child(even){background:#FBfCFA}
.matrix tbody tr:hover{background:var(--brand-050)}
.matrix tbody td:first-child{color:var(--text);font-weight:700}
.matrix .cell-status{white-space:nowrap}

/* 自查清单 */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.check-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 28px;box-shadow:var(--sh-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.check-panel:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.check-panel h3{font-size:19px;margin-bottom:6px;display:flex;align-items:center;gap:10px}
.check-panel .hint{font-size:14px;color:var(--text-3);margin-bottom:20px}
.check-panel ul{display:grid;gap:12px}
.check-panel li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);line-height:1.7}
.dot-ico{flex:0 0 auto;width:22px;height:22px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;margin-top:3px}
.dot-ico.green{background:var(--brand-050);color:var(--brand-600)}
.dot-ico.orange{background:#FFF1E9;color:var(--warn-500)}

/* 核对顺序 */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.step-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:30px 26px 28px;box-shadow:var(--sh-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.step-no{font-size:40px;font-weight:800;line-height:1;color:var(--accent-400);letter-spacing:-.02em}
.step-card h3{font-size:18px;margin:14px 0 10px}
.step-card p{font-size:15px;color:var(--text-2)}

/* FAQ */
.faq{display:grid;gap:12px;max-width:920px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.faq-item.open{border-color:var(--brand-500);box-shadow:var(--sh-1)}
.faq-q{width:100%;display:flex;align-items:center;gap:14px;text-align:left;padding:20px 22px;font-size:17px;font-weight:700;color:var(--text)}
.faq-q:focus-visible{outline:2px solid var(--accent-400);outline-offset:-2px}
.faq-index{font-size:14px;font-weight:800;color:var(--brand-600);min-width:26px}
.faq-arrow{margin-left:auto;flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform var(--dur) var(--ease)}
.faq-arrow::before,.faq-arrow::after{content:"";position:absolute;top:50%;left:50%;width:11px;height:2px;background:var(--brand-600);border-radius:2px}
.faq-arrow::before{transform:translate(-50%,-50%) rotate(45deg) translateX(-3px)}
.faq-arrow::after{transform:translate(-50%,-50%) rotate(-45deg) translateX(3px)}
.faq-item.open .faq-arrow{transform:rotate(180deg)}
.faq-body{display:grid;grid-template-rows:0fr;transition:grid-template-rows var(--dur) var(--ease)}
.faq-item.open .faq-body{grid-template-rows:1fr}
.faq-body-inner{overflow:hidden}
.faq-body p{padding:0 22px 22px 62px;font-size:15px;color:var(--text-2);line-height:1.85}

/* 推荐位 */
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rec-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.rec-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-050)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.rec-card:hover .rec-thumb img{transform:scale(1.03)}
.rec-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body h3{font-size:18px;line-height:1.5}
.rec-body p{font-size:14px;color:var(--text-2);flex:1}
.rec-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);padding-top:6px;border-top:1px solid var(--line)}
.rec-meta .go{color:var(--brand-600);font-weight:700}

/* 底部 CTA */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--ink-900),var(--ink-700));
  color:#EAF2EC;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(120deg,rgba(255,255,255,.05) 0 2px,transparent 2px 16px);
  opacity:.4;pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0}
.cta-inner h2{font-size:26px;color:#fff;margin-bottom:8px}
.cta-inner p{font-size:15px;color:#B9C7BF;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* 页脚 */
.site-footer{background:var(--ink-900);color:#B9C7BF;padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(226,235,229,.14)}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:#9FB0A8;max-width:320px}
.footer-qr{margin-top:20px;width:120px;height:120px;border-radius:14px;overflow:hidden;border:1px solid rgba(201,242,76,.22)}
.footer-qr img{width:100%;height:100%;object-fit:cover}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:18px}
.footer-col ul{display:grid;gap:12px}
.footer-col a{font-size:14px;color:#9FB0A8;transition:color var(--dur) var(--ease)}
.footer-col a:hover{color:var(--accent-400)}
.footer-contact li{font-size:14px;color:#9FB0A8;display:flex;gap:10px;flex-wrap:wrap}
.fc-key{color:#6E7F77;flex:0 0 78px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;font-size:13px;color:#7E8D86}
.footer-bottom a{color:#9FB0A8}
.footer-bottom a:hover{color:var(--accent-400)}

/* 响应式 */
@media (max-width:1024px){
  .hero h1{font-size:36px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{max-width:640px}
  .nav{position:fixed;inset:72px 0 0;background:var(--card);border-top:1px solid var(--line);padding:20px 24px 120px;overflow-y:auto;transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur)}
  .nav-list{flex-direction:column;align-items:stretch;gap:6px}
  .nav-link{font-size:20px;font-weight:700;padding:14px 8px;border-bottom:1px solid var(--line)}
  .nav-link::after{display:none}
  .nav-toggle{display:inline-flex;order:3}
  body.nav-open .nav{opacity:1;visibility:visible;transform:translateY(0)}
  body.nav-open{overflow:hidden}
  body.nav-open .nav-toggle span{background:transparent}
  body.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
  body.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}
  .nav-actions .btn-ghost{display:none}
  .compare-grid,.check-grid,.steps,.rec-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .hero-inner{padding:48px 0 64px}
  .hero h1{font-size:32px}
  .hero-sub{font-size:16px}
  .stat-bar{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .float-card.card-a{top:-12px;left:0}
  .float-card.card-b{bottom:-14px;right:0}
  .sec-head h2{font-size:25px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:44px 0}
  /* 表格卡片化 */
  .matrix-wrap{border:0;background:transparent;box-shadow:none;border-radius:0}
  .matrix thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .matrix,.matrix tbody,.matrix tr,.matrix td{display:block;width:100%}
  .matrix tbody tr{
    background:var(--card);border:1px solid var(--line);border-radius:14px;
    padding:16px 18px;margin-bottom:14px;box-shadow:var(--sh-1);
  }
  .matrix tbody tr:nth-child(even){background:var(--card)}
  .matrix tbody tr:hover{background:var(--card)}
  .matrix tbody td{
    display:flex;justify-content:space-between;gap:16px;
    padding:8px 0;border-top:0;font-size:14px;text-align:right;
  }
  .matrix tbody td::before{
    content:attr(data-label);color:var(--text-3);font-weight:600;text-align:left;flex:0 0 auto;
  }
  .matrix tbody td:first-child{font-size:16px;font-weight:800;padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:6px}
  .faq-body p{padding:0 20px 20px 20px}
  .faq-q{font-size:16px;padding:18px 20px}
}
@media (max-width:480px){
  .container{padding:0 16px}
  .hero h1{font-size:28px}
  .stat-bar{grid-template-columns:1fr 1fr}
  .stat-value{font-size:22px}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:48px 0}
  .compare-card,.check-panel,.step-card{padding:24px 20px}
}

/* roulang page: category4 */
:root{
  --ink-900:#0A1210;
  --ink-800:#12201B;
  --ink-700:#1B2C26;
  --brand-600:#0E6B4A;
  --brand-500:#148C60;
  --brand-050:#E8F4EE;
  --accent-400:#C9F24C;
  --warn-500:#FF6A2B;
  --paper:#F6F7F4;
  --card:#FFFFFF;
  --line:#E3E8E1;
  --text:#101613;
  --text-2:#4A554F;
  --text-3:#87928B;
  --radius-card:18px;
  --radius-input:12px;
  --radius-badge:6px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(10,18,16,.06);
  --shadow-2:0 12px 32px -12px rgba(10,18,16,.18);
  --shadow-3:0 20px 44px -16px rgba(10,18,16,.28);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",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:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.28}
p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;font-family:Inter,"Helvetica Neue",Arial,var(--font-cn)}
:focus-visible{outline:2px solid var(--accent-400);outline-offset:2px;border-radius:4px}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .24s var(--ease),color .24s var(--ease),box-shadow .24s var(--ease),transform .24s var(--ease),border-color .24s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--accent-400);color:var(--ink-900);box-shadow:var(--shadow-2)}
.btn-primary:hover{filter:brightness(1.06);transform:translateX(1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost-light:hover{border-color:var(--accent-400);color:var(--accent-400)}
.btn-dark{background:var(--ink-800);color:#fff}
.btn-dark:hover{background:var(--ink-700)}
.btn-lg{padding:15px 30px;font-size:16px}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.btn.is-loading{pointer-events:none;opacity:.75}
.btn.is-loading::before{
  content:"";width:14px;height:14px;border-radius:50%;
  border:2px solid currentColor;border-top-color:transparent;
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 标签与徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--radius-badge);
  font-size:12px;font-weight:600;line-height:1.6;
  background:var(--brand-050);color:var(--brand-600);
}
.badge-accent{background:var(--warn-500);color:#fff}
.badge-outline{background:transparent;border:1px solid var(--accent-400);color:var(--ink-800)}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.logo{
  display:inline-flex;align-items:center;
  font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--text);
  flex-shrink:0;
}
.logo-dot{
  display:inline-block;width:6px;height:6px;margin-left:6px;
  background:var(--accent-400);border-radius:2px;
}
.nav{flex:1;min-width:0}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 12px;font-size:14.5px;color:var(--text-2);
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand-600);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--brand-600)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text);font-weight:600}
.nav-link.active::after{background:var(--accent-400);transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--text);
  transform:translateX(-50%);transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{content:"";left:0;transform:none;top:-6px}
.nav-toggle span::after{content:"";left:0;transform:none;top:6px}
.site-header.nav-open .nav-toggle span{background:transparent}
.site-header.nav-open .nav-toggle span::before{transform:rotate(45deg);top:0}
.site-header.nav-open .nav-toggle span::after{transform:rotate(-45deg);top:0}
.drawer-actions{display:none}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3)}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:var(--accent-400)}
.breadcrumb .sep{opacity:.6}
.breadcrumb .current{color:var(--accent-400)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:var(--ink-900);color:#fff;
  padding:64px 0 72px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(720px 320px at 12% -10%,rgba(20,140,96,.42),transparent 68%),
    radial-gradient(520px 300px at 92% 8%,rgba(201,242,76,.16),transparent 70%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(30deg,rgba(255,255,255,.05) 0 1px,transparent 1px 14px);
  opacity:.5;pointer-events:none;
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-kicker{margin-top:26px;display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:var(--radius-pill);border:1px solid rgba(201,242,76,.4);color:var(--accent-400);font-size:13px;font-weight:600}
.hero h1{margin-top:18px;font-size:44px;line-height:1.22;color:#fff;max-width:15em}
.hero-sub{margin-top:16px;font-size:17px;line-height:1.75;color:rgba(255,255,255,.74);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:40px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12)}
.hero-facts .fact b{display:block;font-size:24px;font-weight:800;color:var(--accent-400)}
.hero-facts .fact span{display:block;margin-top:4px;font-size:13px;color:rgba(255,255,255,.6)}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-card);
  border:1px solid rgba(201,242,76,.18);
}
.float-card{
  position:absolute;background:rgba(10,18,16,.86);
  border:1px solid rgba(201,242,76,.28);border-radius:14px;
  padding:12px 16px;backdrop-filter:blur(4px);
}
.float-card b{display:block;font-size:18px;color:var(--accent-400)}
.float-card span{font-size:12px;color:rgba(255,255,255,.65)}
.float-card.c1{left:-14px;bottom:28px}
.float-card.c2{right:-10px;top:24px}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:#fff}
.section-dark{background:var(--ink-900);color:#fff}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--brand-600);letter-spacing:.04em;
}
.section-head .eyebrow::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--accent-400)}
.section-head h2{margin-top:12px;font-size:30px}
.section-head p{margin-top:12px;color:var(--text-2);font-size:16px}
.section-dark .section-head h2{color:#fff}
.section-dark .section-head p{color:rgba(255,255,255,.68)}

/* ---------- 速查卡 ---------- */
.quickbar{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:18px 0 0;
}
.quickbar a{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:#fff;
  font-size:14px;color:var(--text-2);
  transition:border-color .24s var(--ease),color .24s var(--ease),transform .24s var(--ease);
}
.quickbar a:hover{border-color:var(--brand-600);color:var(--brand-600);transform:translateY(-2px)}

.check-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.check-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
  display:flex;flex-direction:column;
}
.check-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-3);border-color:#d3dbd2}
.check-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-050);color:var(--brand-600);font-size:20px;font-weight:800;
}
.check-card h3{margin-top:16px;font-size:18px}
.check-card p{margin-top:10px;font-size:14.5px;color:var(--text-2);line-height:1.75}
.check-card .check-link{
  margin-top:auto;padding-top:16px;font-size:14px;font-weight:600;color:var(--brand-600);
  display:inline-flex;align-items:center;gap:6px;
}
.check-card .check-link:hover{color:var(--brand-500)}
.check-card .check-link::after{content:"→";transition:transform .24s var(--ease)}
.check-card .check-link:hover::after{transform:translateX(3px)}

/* ---------- FAQ 分组 ---------- */
.faq-groups{display:grid;gap:44px}
.faq-group-head{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.faq-group-head .gindex{
  width:38px;height:38px;border-radius:12px;background:var(--ink-800);color:var(--accent-400);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
}
.faq-group-head h3{font-size:21px}
.faq-group-head span.gcount{margin-left:auto;font-size:13px;color:var(--text-3)}
.acc-item{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.acc-item:hover{border-color:#d3dbd2}
.acc-item.open{border-color:var(--brand-600);box-shadow:var(--shadow-1)}
.acc-trigger{
  width:100%;display:flex;align-items:flex-start;gap:14px;text-align:left;
  padding:18px 20px;font-size:16.5px;font-weight:600;color:var(--text);line-height:1.6;
}
.acc-trigger .idx{
  flex-shrink:0;font-size:13px;font-weight:800;color:var(--accent-400);
  background:var(--ink-800);border-radius:6px;min-width:26px;height:22px;
  display:inline-flex;align-items:center;justify-content:center;margin-top:2px;
}
.acc-icon{
  margin-left:auto;flex-shrink:0;width:22px;height:22px;color:var(--text-3);
  transition:transform .28s var(--ease),color .28s var(--ease);
}
.acc-icon svg{width:100%;height:100%}
.acc-item.open .acc-icon{transform:rotate(180deg);color:var(--brand-600)}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.acc-panel-inner{padding:0 20px 20px 60px;color:var(--text-2);font-size:15px;line-height:1.85}
.acc-panel-inner p+p{margin-top:10px}
.acc-panel-inner ul{margin-top:10px;display:grid;gap:7px}
.acc-panel-inner li{position:relative;padding-left:16px}
.acc-panel-inner li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:5px;border-radius:50%;background:var(--brand-500)}

/* ---------- 三步排查 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.step-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:28px 24px;box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-3)}
.step-card .snum{font-size:40px;font-weight:800;color:var(--accent-400);line-height:1}
.step-card h3{margin-top:14px;font-size:18px}
.step-card p{margin-top:10px;font-size:14.5px;color:var(--text-2)}
.step-card::after{
  content:"";position:absolute;right:-13px;top:52px;width:26px;height:1px;background:var(--line);
}
.step-card:last-child::after{display:none}

/* ---------- 图文说明 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-card);box-shadow:var(--shadow-2)}
.split h2{font-size:30px}
.split p.lead{margin-top:14px;color:var(--text-2)}
.tick-list{margin-top:22px;display:grid;gap:12px}
.tick-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2)}
.tick-list li::before{content:"✓";color:var(--brand-600);font-weight:800;flex-shrink:0}

/* ---------- 联系表单 ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.contact-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-2);
}
.contact-card h2{font-size:26px}
.contact-card .form-note{margin-top:10px;font-size:14px;color:var(--text-3)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-top:18px;display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;font-weight:600;color:var(--text)}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius-input);
  border:1px solid var(--line);background:#fff;font-size:15px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field textarea{min-height:118px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(14,107,74,.12);
}
.field.has-error input,.field.has-error textarea{border-color:var(--warn-500)}
.field .err{font-size:13.5px;color:var(--warn-500)}
.form-actions{margin-top:24px;display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.form-actions .hint{font-size:13px;color:var(--text-3)}
.contact-side{display:grid;gap:18px}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
}
.side-card h3{font-size:18px}
.side-card ul{margin-top:14px;display:grid;gap:12px}
.side-card li{display:flex;justify-content:space-between;gap:12px;font-size:14.5px;color:var(--text-2);border-bottom:1px dashed var(--line);padding-bottom:12px}
.side-card li:last-child{border-bottom:0;padding-bottom:0}
.side-card li b{color:var(--text);font-weight:700}
.side-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:14px}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--ink-900);color:#fff;padding:56px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}
.cta-inner h2{font-size:26px;color:#fff}
.cta-inner p{margin-top:10px;color:rgba(255,255,255,.68);font-size:15px}
.cta-inner .cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand .logo{color:#fff}
.footer-brand p{margin-top:16px;font-size:14.5px;line-height:1.8;max-width:26em}
.footer-qr{margin-top:20px}
.footer-qr img{width:120px;height:120px;object-fit:cover;border-radius:14px;border:1px solid rgba(201,242,76,.22)}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.72);transition:color .22s var(--ease)}
.footer-col a:hover{color:var(--accent-400)}
.footer-contact li{display:flex;gap:10px;font-size:14.5px}
.footer-contact .fc-key{color:rgba(255,255,255,.45);flex-shrink:0}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:var(--accent-400)}

/* ---------- 空态 / 加载态 ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:56px 24px;border:1px dashed var(--line);border-radius:var(--radius-card);
  background:#fff;text-align:center;
}
.empty-state .es-icon{
  width:52px;height:52px;border-radius:50%;background:var(--brand-050);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;
}
.empty-state p{color:var(--text-3);font-size:14.5px}
.skeleton{
  border-radius:14px;background:#e9ece6;position:relative;overflow:hidden;height:96px;
}
.skeleton::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.65),transparent);
  transform:translateX(-100%);animation:shimmer 1.4s infinite;
}
@keyframes shimmer{to{transform:translateX(100%)}}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .container{padding:0 22px}
}
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:34px;max-width:none}
  .check-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .step-card::after{display:none}
  .split{grid-template-columns:1fr;gap:32px}
  .contact-grid{grid-template-columns:1fr}
  .section{padding:64px 0}
  .nav{
    position:fixed;left:0;right:0;top:72px;bottom:0;
    background:#fff;padding:20px 22px 120px;
    overflow-y:auto;opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s;
  }
  .site-header.nav-open .nav{opacity:1;visibility:visible;transform:none}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-link{font-size:20px;padding:16px 0;border-bottom:1px solid var(--line)}
  .nav-link::after{display:none}
  .nav-link.active{color:var(--brand-600)}
  .nav-toggle{display:block}
  .nav-actions .btn{display:none}
  .drawer-actions{
    display:flex;flex-direction:column;gap:12px;
    position:fixed;left:0;right:0;bottom:0;padding:16px 22px 22px;
    background:#fff;border-top:1px solid var(--line);
    transform:translateY(110%);transition:transform .26s var(--ease);
  }
  .site-header.nav-open .drawer-actions{transform:none}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .hero{padding:40px 0 56px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-facts{grid-template-columns:repeat(2,1fr);gap:16px}
  .check-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .form-row{grid-template-columns:1fr}
  .acc-panel-inner{padding-left:20px}
  .section-head h2,.split h2{font-size:24px}
  .contact-card{padding:24px}
}
@media (max-width:480px){
  .container{padding:0 16px}
  .hero h1{font-size:28px}
  .hero-facts{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .btn-lg{width:100%}
  .hero-actions{flex-direction:column;align-items:stretch}
}