/* roulang page: index */
:root{
  --primary:#0F4A45;
  --primary-dark:#0A3634;
  --primary-soft:rgba(15,74,69,.08);
  --primary-line:rgba(15,74,69,.30);
  --accent:#E2703A;
  --accent-dark:#C85A28;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --ink:#141F1E;
  --ink-2:#55625F;
  --ink-3:#8B948F;
  --line:#E4E0D6;
  --success:#2E8B72;
  --danger:#C0392B;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-badge:6px;
  --shadow-sm:0 1px 2px rgba(15,74,69,.06);
  --shadow-md:0 8px 24px -12px rgba(15,74,69,.18);
  --shadow-lg:0 24px 48px -24px rgba(15,74,69,.22);
  --sec:96px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Manrope","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  overflow-x:hidden;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.1em}
h1,h2,h3,h4{margin:0;font-family:var(--font-cn);color:var(--ink);letter-spacing:-.01em}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover,a:focus{color:var(--accent)}
button{font-family:inherit;font-size:inherit;cursor:pointer}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.button{background-color:var(--primary);border-radius:var(--r-btn);font-family:inherit}
.button:hover,.button:focus{background-color:var(--primary-dark)}
input[type="text"],input[type="password"],input[type="email"],input[type="search"],textarea,select{
  height:48px;
  margin:0;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  box-shadow:none;
  color:var(--ink);
  font-family:inherit;
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
input[type="text"]:focus,input[type="password"]:focus,input[type="email"]:focus,textarea:focus,select:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(15,74,69,.12);
  outline:none;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-md)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.brand:hover{color:var(--primary)}
.brand-mark{position:relative;width:34px;height:34px;border-radius:12px;background:var(--primary);overflow:hidden;flex:0 0 auto}
.brand-mark::before{content:"";position:absolute;width:36px;height:36px;border-radius:50%;border:2px solid rgba(255,255,255,.42);left:9px;top:11px}
.brand-mark::after{content:"";position:absolute;width:20px;height:20px;border-radius:50%;background:var(--accent);right:-6px;bottom:-6px}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-link{position:relative;padding:6px 2px;font-size:15px;font-weight:500;color:var(--ink-2);min-height:44px;display:flex;align-items:center}
.nav-link::after{content:"";position:absolute;left:0;bottom:-6px;width:24px;height:2px;background:var(--accent);border-radius:2px;opacity:0;transform:scaleX(.35);transform-origin:left center;transition:opacity .2s ease,transform .2s ease}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after,.nav-link.is-active::after{opacity:1;transform:scaleX(1)}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;
  padding:0;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--primary);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 移动抽屉 ---------- */
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(10,54,52,.45);opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;z-index:70;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:86%;max-width:360px;
  background:var(--primary-dark);color:#fff;z-index:80;
  transform:translateX(100%);transition:transform .35s ease;
  display:flex;flex-direction:column;padding:22px 22px 24px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-brand{font-size:17px;font-weight:700;color:#fff}
.drawer-close{width:40px;height:40px;border:1px solid rgba(255,255,255,.25);border-radius:10px;background:transparent;color:#fff;font-size:18px;line-height:1;display:flex;align-items:center;justify-content:center}
.drawer-nav{display:flex;flex-direction:column;flex:1 1 auto}
.drawer-link{display:flex;align-items:center;height:56px;color:rgba(255,255,255,.88);font-size:16px;border-bottom:1px solid rgba(255,255,255,.14)}
.drawer-link:hover,.drawer-link.is-active{color:#fff}
.drawer-link.is-active{color:var(--accent)}
.drawer-foot{padding-top:20px}
.drawer-foot .btn{width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 24px;border-radius:var(--r-btn);border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;text-align:center;
  transition:background-color .25s ease,color .25s ease,box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover,.btn-primary:focus{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--shadow-sm)}
.btn-ghost{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-ghost:hover,.btn-ghost:focus{background:var(--primary-soft);color:var(--primary-dark);border-color:var(--primary-dark)}
.btn-light{background:#fff;color:var(--primary);border-color:#fff}
.btn-light:hover,.btn-light:focus{background:rgba(255,255,255,.88);color:var(--primary-dark)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-outline-light:hover,.btn-outline-light:focus{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn-sm{min-height:41px;padding:10px 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary);
  border-bottom:2px solid transparent;padding-bottom:2px;min-height:44px;
  transition:color .2s ease,border-color .2s ease;
}
.link-arrow span{display:inline-block;transition:transform .25s ease}
.link-arrow:hover,.link-arrow:focus{color:var(--accent);border-bottom-color:var(--accent)}
.link-arrow:hover span{transform:translateX(4px)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:56px 0 72px;background:var(--bg)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center right;opacity:.20;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg,rgba(246,244,239,.97) 0%,rgba(246,244,239,.90) 42%,rgba(246,244,239,.48) 100%);
}
.arc{position:absolute;border-radius:50%;border:1px solid rgba(15,74,69,.16);pointer-events:none;z-index:1}
.arc-1{width:300px;height:300px;right:-120px;top:-130px}
.arc-2{width:460px;height:460px;right:-190px;top:-210px}
.arc-block{position:absolute;width:210px;height:210px;border-radius:50%;background:rgba(226,112,58,.12);right:-80px;top:-100px;z-index:0;pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero-grid{row-gap:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin:0 0 16px;padding:5px 12px;
  background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:600;
  border-radius:100px;letter-spacing:.02em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.hero-title{font-size:clamp(30px,4.2vw,46px);font-weight:800;line-height:1.2;letter-spacing:-.02em;margin-bottom:18px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--ink-2);max-width:600px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-bottom:28px}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 28px;border-top:1px solid var(--line);padding-top:20px}
.hero-points li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-2)}
.hero-points li::before{content:"";position:absolute;left:0;top:12px;width:7px;height:7px;border-radius:50%;background:var(--accent)}

.login-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-lg);padding:26px 26px 22px;
}
.login-title{font-size:20px;font-weight:700;margin-bottom:6px}
.login-desc{font-size:14px;line-height:1.7;color:var(--ink-2);margin-bottom:18px}
.login-form label{display:block;font-size:14px;font-weight:600;margin-bottom:6px;color:var(--ink)}
.login-form input[type="text"],.login-form input[type="password"]{width:100%;margin-bottom:14px}
.code-row{display:flex;gap:12px;margin-bottom:14px}
.code-row input{flex:1 1 auto;margin-bottom:0!important}
.code-img{
  flex:0 0 96px;height:48px;border-radius:8px;border:1px solid var(--line);
  background:repeating-linear-gradient(45deg,rgba(15,74,69,.08),rgba(15,74,69,.08) 6px,rgba(226,112,58,.10) 6px,rgba(226,112,58,.10) 12px);
  display:flex;align-items:center;justify-content:center;font-family:var(--font-num);
  font-weight:800;font-size:18px;letter-spacing:.12em;color:var(--primary);user-select:none;cursor:pointer;
}
.check-row{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);margin:2px 0 18px;line-height:1.6}
.check-row input{width:16px;height:16px;margin:0;accent-color:var(--primary)}
.login-foot{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:14px;font-size:14px}
.dot{width:4px;height:4px;border-radius:50%;background:var(--line);display:inline-block}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sec) 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:44px}
.section-head-main{max-width:640px}
.section-title{font-size:clamp(24px,2.7vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
.section-title::after{content:"";display:block;width:40px;height:3px;background:var(--accent);border-radius:2px;margin-top:14px}
.section-sub{margin:16px 0 0;font-size:16px;color:var(--ink-2);max-width:620px}

/* ---------- 数据条 ---------- */
.stat-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,255,255,.55)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat-item{padding:28px 24px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0}
.stat-num{font-family:var(--font-num);font-weight:800;font-size:32px;line-height:1.1;color:var(--primary);letter-spacing:-.02em}
.stat-num em{font-style:normal;color:var(--accent);font-size:22px;margin-left:2px}
.stat-label{margin-top:8px;font-size:13px;color:var(--ink-3);letter-spacing:.02em}

/* ---------- 图文功能块 ---------- */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-bottom:88px}
.feature-row:last-child{margin-bottom:0}
.feature-row.reverse .feature-media{order:2}
.feature-row.reverse .feature-body{order:1}
.feature-media{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-md)}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s ease}
.feature-media:hover img{transform:scale(1.03)}
.feature-tag{display:inline-block;margin-bottom:14px;padding:4px 10px;border-radius:var(--r-badge);background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:600}
.feature-title{font-size:clamp(21px,2vw,24px);font-weight:700;line-height:1.4;margin-bottom:12px}
.feature-text{color:var(--ink-2);font-size:16px;max-width:520px}
.feature-list{margin:18px 0 22px}
.feature-list li{position:relative;padding-left:22px;margin-bottom:12px;font-size:15px;color:var(--ink-2)}
.feature-list li::before{content:"";position:absolute;left:0;top:11px;width:10px;height:2px;background:var(--accent);border-radius:2px}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease;
}
.scene-card:nth-child(2){transform:translateY(24px)}
.scene-card:nth-child(3){transform:translateY(48px)}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary-line)}
.scene-card:nth-child(2):hover{transform:translateY(20px)}
.scene-card:nth-child(3):hover{transform:translateY(44px)}
.scene-cover img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s ease}
.scene-card:hover .scene-cover img{transform:scale(1.04)}
.scene-body{padding:22px}
.scene-title{font-size:20px;font-weight:700;line-height:1.4;margin-bottom:10px}
.scene-text{font-size:15px;color:var(--ink-2);margin-bottom:14px}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;align-items:stretch}
.case-main{
  background:rgba(15,74,69,.06);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform .35s ease,box-shadow .35s ease;
}
.case-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.case-main img{width:100%;aspect-ratio:16/9;object-fit:cover}
.case-main-body{padding:24px}
.case-client{font-size:13px;color:var(--ink-3);letter-spacing:.02em;margin-bottom:10px}
.case-metric{font-family:var(--font-num);font-weight:800;font-size:30px;color:var(--primary);line-height:1.2;letter-spacing:-.02em}
.case-metric-label{font-size:13px;color:var(--ink-3);margin-top:4px;margin-bottom:12px}
.case-text{font-size:15px;color:var(--ink-2);margin-bottom:14px}
.case-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.case-mini{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;
  box-shadow:var(--shadow-sm);transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease;
  display:flex;flex-direction:column;justify-content:center;
}
.case-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary-line)}
.case-mini .case-text{margin-bottom:10px}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.price-card{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 26px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease;overflow:hidden;
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary-line)}
.price-card--featured{border:2px solid var(--primary);box-shadow:var(--shadow-lg)}
.price-card--featured::before{
  content:"";position:absolute;top:-64px;left:50%;transform:translateX(-50%);
  width:230px;height:126px;border-radius:0 0 50% 50%;background:rgba(15,74,69,.07);
}
.price-badge{
  position:absolute;top:0;right:24px;background:var(--accent);color:#fff;font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:0 0 8px 8px;letter-spacing:.02em;
}
.price-name{font-size:18px;font-weight:700;margin-bottom:6px;position:relative}
.price-desc{font-size:14px;color:var(--ink-2);margin-bottom:18px;position:relative}
.price-amount{display:flex;align-items:baseline;gap:6px;font-family:var(--font-num);font-weight:800;color:var(--primary);font-size:36px;letter-spacing:-.02em;line-height:1.1}
.price-amount span{font-size:14px;font-weight:500;color:var(--ink-3);font-family:var(--font-cn);letter-spacing:0}
.price-cycle{font-size:13px;color:var(--ink-3);margin-top:6px}
.price-line{height:1px;background:var(--line);margin:20px 0}
.price-features{flex:1 1 auto;margin-bottom:22px}
.price-features li{position:relative;padding-left:26px;font-size:15px;color:var(--ink-2);margin-bottom:12px}
.price-features li::before{
  content:"✓";position:absolute;left:0;top:0;color:var(--primary);font-size:14px;font-weight:700;
}

/* ---------- 资讯列表 ---------- */
.news-grid{display:flex;flex-wrap:wrap;margin:0 -12px}
.news-grid > .cell{width:33.3333%;padding:0 12px;margin-bottom:24px}
.post-card{
  display:flex;flex-direction:column;height:100%;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);padding:20px;
  box-shadow:var(--shadow-sm);color:var(--ink);
  transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary-line);color:var(--ink)}
.post-cover{border-radius:var(--r-img);overflow:hidden;margin-bottom:16px;background:rgba(15,74,69,.10)}
.post-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease}
.post-card:hover .post-cover img{transform:scale(1.04)}
.badge{
  display:inline-block;margin-bottom:10px;padding:4px 10px;border-radius:var(--r-badge);
  background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:600;
}
.post-title{font-size:19px;font-weight:700;line-height:1.45;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease}
.post-card:hover .post-title{color:var(--primary)}
.post-excerpt{font-size:15px;color:var(--ink-2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;gap:8px;margin-top:auto;font-size:13px;color:var(--ink-3);letter-spacing:.02em}
.empty-state{
  text-align:center;padding:52px 24px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-sm);
}
.empty-icon{
  width:64px;height:64px;border-radius:50%;background:rgba(15,74,69,.10);color:var(--primary);
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;font-size:26px;
}
.empty-title{font-size:17px;font-weight:600;margin-bottom:8px}
.empty-text{font-size:14px;color:var(--ink-2);margin-bottom:20px}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1fr 2fr;gap:56px;align-items:start}
.faq-aside h2{font-size:clamp(22px,2.2vw,28px);font-weight:700;line-height:1.35;margin-bottom:14px}
.faq-aside p{font-size:15px;color:var(--ink-2)}
.faq-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);overflow:hidden}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;text-align:left;padding:20px 22px;font-size:17px;font-weight:600;color:var(--ink);
  min-height:44px;transition:color .2s ease,background-color .2s ease;
}
.faq-question:hover{color:var(--primary);background:rgba(15,74,69,.03)}
.faq-icon{
  flex:0 0 32px;width:32px;height:32px;border-radius:50%;border:1.5px solid var(--primary);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:17px;line-height:1;font-weight:600;
  transition:background-color .25s ease,color .25s ease,transform .25s ease;
}
.faq-item.is-open .faq-icon{background:var(--primary);color:#fff;transform:rotate(45deg)}
.faq-answer{display:none;padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.faq-item.is-open .faq-answer{display:block}
.faq-answer p{margin:0}

/* ---------- 底部 CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--primary-dark);color:#fff;padding:72px 0}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px}
.cta-title{font-size:clamp(22px,2.4vw,30px);font-weight:700;color:#fff;margin-bottom:12px;line-height:1.35}
.cta-text{font-size:16px;color:rgba(255,255,255,.76);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-arc{position:absolute;border-radius:50%;border:1px solid rgba(226,112,58,.35);pointer-events:none}
.cta-arc-1{width:260px;height:260px;right:-70px;bottom:-140px}
.cta-arc-2{width:400px;height:400px;right:-140px;bottom:-220px;border-color:rgba(255,255,255,.14)}
.cta-arc-block{position:absolute;width:170px;height:170px;border-radius:50%;background:rgba(226,112,58,.16);right:-60px;bottom:-90px;pointer-events:none}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.78);padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:30px;height:30px;border-radius:10px;background:rgba(255,255,255,.12)}
.footer-brand .brand-mark::before{border-color:rgba(255,255,255,.4);width:32px;height:32px;left:8px;top:10px}
.footer-brand .brand-mark::after{background:var(--accent)}
.footer-brand-name{color:#fff;font-size:17px;font-weight:700}
.footer-desc{color:rgba(255,255,255,.66);max-width:320px;line-height:1.8;margin-bottom:16px}
.footer-quick{display:flex;flex-wrap:wrap;gap:10px}
.footer-quick a{font-size:13px;padding:5px 12px;border:1px solid rgba(255,255,255,.22);border-radius:100px;color:rgba(255,255,255,.82)}
.footer-quick a:hover{color:var(--accent);border-color:var(--accent)}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
.footer-list li{margin-bottom:12px}
.footer-list a,.footer-list span{color:rgba(255,255,255,.72);font-size:14px;display:inline-block;transition:color .2s ease,transform .2s ease}
.footer-list a:hover{color:var(--accent);transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0;font-size:13px;color:rgba(255,255,255,.52);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* ---------- 断点 medium ---------- */
@media (max-width:1024px){
  :root{--sec:64px}
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .nav-wrap{height:64px}
  .brand-text{font-size:16px}
  .feature-row{grid-template-columns:1fr;gap:28px;margin-bottom:64px}
  .feature-row.reverse .feature-media{order:1}
  .feature-row.reverse .feature-body{order:2}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .scene-card:nth-child(3){transform:none}
  .scene-card:nth-child(3):hover{transform:translateY(-4px)}
  .case-grid{grid-template-columns:1fr}
  .price-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid > .cell{width:50%}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-actions{width:100%}
}

/* ---------- 断点 small ---------- */
@media (max-width:640px){
  :root{--sec:48px}
  .container{padding:0 20px}
  .hero{padding:44px 0 56px;min-height:420px}
  .hero-title{font-size:clamp(26px,7vw,32px)}
  .hero-sub{font-size:16px}
  .hero-actions{gap:14px}
  .hero-actions .btn{width:100%}
  .login-card{padding:22px 18px}
  .stat-grid{grid-template-columns:1fr}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);padding:22px 0}
  .stat-item:last-child{border-bottom:0}
  .scene-grid{grid-template-columns:1fr}
  .scene-card,.scene-card:nth-child(2),.scene-card:nth-child(3){transform:none}
  .scene-card:hover,.scene-card:nth-child(2):hover,.scene-card:nth-child(3):hover{transform:translateY(-4px)}
  .price-grid{grid-template-columns:1fr}
  .news-grid > .cell{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:56px 0}
  .cta-actions .btn{width:100%}
  .section-head{margin-bottom:32px}
  .feature-list li{font-size:14px}
}

/* roulang page: article */
:root{
  --brand:#0F4A45;
  --brand-dark:#0A3634;
  --brand-soft:rgba(15,74,69,.08);
  --brand-soft-2:rgba(15,74,69,.14);
  --brand-line:rgba(15,74,69,.30);
  --accent:#E2703A;
  --accent-dark:#C85A28;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --ink:#141F1E;
  --ink-2:#55625F;
  --ink-3:#8B948F;
  --line:#E4E0D6;
  --ok:#2E8B72;
  --err:#C0392B;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-badge:6px;
  --shadow-sm:0 1px 2px rgba(15,74,69,.06);
  --shadow-md:0 8px 24px -12px rgba(15,74,69,.18);
  --shadow-lg:0 24px 48px -24px rgba(15,74,69,.22);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Manrope","Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease;}
a:hover{color:var(--accent);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);line-height:1.3;letter-spacing:-0.01em;}
p{margin:0 0 1.2em;}
ul,ol{margin:0 0 1.2em;padding-left:1.4em;}
button{font-family:inherit;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:40px;max-width:640px;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);}
.section-head .rule{display:block;width:40px;height:3px;background:var(--accent);border-radius:2px;margin-top:16px;}
.section-head p{margin:16px 0 0;color:var(--ink-2);font-size:15px;}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.08em;color:var(--brand);
  background:var(--brand-soft);border-radius:var(--r-badge);padding:5px 12px;margin-bottom:16px;
}
/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-md);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  position:relative;width:28px;height:28px;border-radius:9px;
  background:var(--brand);flex:0 0 28px;
}
.brand-mark::after{
  content:"";position:absolute;right:4px;bottom:4px;width:14px;height:14px;
  border:1.5px solid rgba(255,255,255,.75);border-radius:50%;
  border-left-color:transparent;border-top-color:transparent;
}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-0.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:8px;}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;font-size:15px;
  color:var(--ink-2);border-radius:var(--r-btn);
}
.nav-link::after{
  content:"";position:absolute;left:14px;bottom:2px;width:0;height:2px;
  background:var(--accent);border-radius:2px;transition:width .2s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{width:24px;}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{width:24px;}
.header-actions{display:flex;align-items:center;gap:12px;}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--surface);
  border-radius:var(--r-btn);color:var(--brand);font-size:18px;cursor:pointer;
}
/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--shadow-sm);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand);}
.btn-light{background:#fff;color:var(--brand);}
.btn-light:hover{background:#fff;color:var(--accent);transform:translateY(-1px);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-outline-light:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08);}
.btn-sm{min-height:40px;padding:8px 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);
  border-bottom:2px solid transparent;padding-bottom:2px;
}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover{border-bottom-color:var(--accent);color:var(--brand);}
.link-arrow:hover i{transform:translateX(4px);}
/* ---------- drawer ---------- */
.drawer{
  position:fixed;top:0;right:0;height:100%;width:86%;max-width:360px;
  background:var(--brand-dark);z-index:90;transform:translateX(102%);
  transition:transform .3s ease;display:flex;flex-direction:column;padding:24px 20px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-title{color:#fff;font-size:16px;font-weight:700;}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.25);background:transparent;color:#fff;font-size:18px;cursor:pointer;}
.drawer-links{display:flex;flex-direction:column;}
.drawer-links a{
  color:rgba(255,255,255,.88);line-height:56px;border-bottom:1px solid rgba(255,255,255,.12);font-size:16px;
}
.drawer-links a:hover{color:var(--accent);padding-left:4px;}
.drawer-cta{margin-top:auto;padding-top:20px;}
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(10,54,52,.45);z-index:80;opacity:0;visibility:hidden;transition:opacity .25s ease;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible;}
/* ---------- article head ---------- */
.article-hero{
  background:
    linear-gradient(180deg,rgba(15,74,69,.05),rgba(246,244,239,0)),
    var(--bg);
  border-bottom:1px solid var(--line);
  padding:36px 0 40px;
  position:relative;
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;right:-80px;top:-60px;width:240px;height:240px;
  border-radius:50%;background:var(--brand-soft);
  box-shadow:inset 0 0 0 1px rgba(15,74,69,.12),inset 0 0 0 42px rgba(15,74,69,.06);
  pointer-events:none;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);margin-bottom:20px;position:relative;z-index:1;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{
  color:var(--brand);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-hero h1{
  font-size:clamp(26px,3.4vw,36px);line-height:1.3;position:relative;z-index:1;max-width:900px;
}
.article-meta{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:20px;
  font-size:13px;color:var(--ink-3);letter-spacing:.02em;position:relative;z-index:1;
}
.badge-cat{
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;
  border-radius:var(--r-badge);padding:4px 10px;
}
.dot-sep{width:4px;height:4px;border-radius:50%;background:var(--line);display:inline-block;}
/* ---------- article body ---------- */
.article-wrap{padding:64px 0 80px;}
.article-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);padding:40px 44px;max-width:820px;
}
.article-body p{font-size:17px;line-height:1.9;color:#243029;}
.article-body h2{
  font-size:24px;margin:2em 0 .8em;padding-left:14px;position:relative;line-height:1.4;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:1em;background:var(--accent);border-radius:2px;
}
.article-body h3{font-size:18px;margin:1.6em 0 .6em;}
.article-body h4{font-size:17px;margin:1.4em 0 .5em;font-weight:600;}
.article-body ul,.article-body ol{padding-left:1.5em;}
.article-body li{font-size:17px;line-height:1.9;margin-bottom:.4em;}
.article-body ul li::marker{color:var(--brand);}
.article-body ol li::marker{color:var(--brand);font-weight:700;}
.article-body blockquote{
  margin:1.6em 0;padding:20px;background:var(--bg);border-left:3px solid var(--accent);
  border-radius:0 var(--r-img) var(--r-img) 0;color:var(--ink-2);
}
.article-body blockquote p{font-size:16px;margin:0;color:var(--ink-2);}
.article-body img{border-radius:var(--r-img);margin:1.8em auto;border:1px solid var(--line);}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15px;}
.article-body thead th{background:var(--brand-soft);color:var(--brand);font-weight:600;text-align:left;padding:12px 14px;}
.article-body tbody td{padding:12px 14px;border-top:1px solid var(--line);color:var(--ink-2);}
.article-body tbody tr:nth-child(even){background:rgba(246,244,239,.7);}
.article-body pre{
  background:var(--brand-dark);color:#E8F1EE;border-radius:12px;padding:20px;overflow-x:auto;
  font-size:14px;line-height:1.7;
}
.article-body code{font-family:var(--font-num);font-size:.94em;}
.article-body a{border-bottom:1px solid var(--brand-line);}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2.4em 0;}
.article-foot{
  margin-top:32px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.tag-list{display:flex;gap:8px;flex-wrap:wrap;}
.tag{
  display:inline-block;font-size:13px;color:var(--ink-2);background:var(--bg);
  border:1px solid var(--line);border-radius:999px;padding:5px 14px;
}
.tag:hover{border-color:var(--brand-line);color:var(--brand);}
.share-row{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);}
.share-row a{
  width:34px;height:34px;border-radius:10px;border:1px solid var(--line);display:inline-flex;
  align-items:center;justify-content:center;color:var(--ink-2);background:#fff;
}
.share-row a:hover{border-color:var(--brand-line);color:var(--brand);}
.empty-state{
  text-align:center;padding:56px 24px;
}
.empty-state .icon-circle{
  width:64px;height:64px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:18px;
}
.empty-state h3{font-size:17px;margin-bottom:8px;}
.empty-state p{font-size:14px;color:var(--ink-2);margin-bottom:20px;}
/* ---------- sidebar ---------- */
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);padding:24px;margin-bottom:24px;
}
.side-card h3{font-size:17px;margin-bottom:6px;}
.side-card .side-note{font-size:13px;color:var(--ink-3);margin-bottom:18px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--ink);}
.field input{
  width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;font-size:15px;color:var(--ink);background:#fff;transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:var(--ink-3);}
.field input:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,74,69,.12);
}
.check-row{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);margin-bottom:16px;}
.check-row input{width:16px;height:16px;accent-color:var(--brand);}
.side-help{font-size:13px;color:var(--ink-3);text-align:center;margin:14px 0 0;}
.hot-list{list-style:none;margin:0;padding:0;}
.hot-list li{padding:12px 0;border-bottom:1px solid var(--line);}
.hot-list li:last-child{border-bottom:none;padding-bottom:0;}
.hot-list a{display:flex;gap:12px;align-items:flex-start;color:var(--ink-2);font-size:15px;line-height:1.6;}
.hot-list .no{
  font-family:var(--font-num);font-weight:700;color:var(--accent);font-size:14px;flex:0 0 20px;
}
.hot-list a:hover{color:var(--brand);}
.toc-list{list-style:none;margin:0;padding:0;}
.toc-list li{margin-bottom:10px;}
.toc-list a{font-size:14px;color:var(--ink-2);display:inline-flex;gap:8px;align-items:center;}
.toc-list a:hover{color:var(--brand);}
.toc-list i{font-size:11px;color:var(--accent);}
/* ---------- nav prev/next ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px;}
.post-nav a{
  border:1px solid var(--line);border-radius:12px;background:#fff;padding:18px 20px;
  display:block;color:var(--ink-2);font-size:14px;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.post-nav a:hover{border-color:var(--brand-line);box-shadow:var(--shadow-md);transform:translateY(-2px);color:var(--brand);}
.post-nav .label{display:block;font-size:12px;color:var(--ink-3);margin-bottom:6px;letter-spacing:.06em;}
/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .35s ease-out,box-shadow .35s ease-out,border-color .35s ease-out;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-line);}
.post-card .thumb{width:100%;aspect-ratio:16/10;overflow:hidden;border-radius:var(--r-img);margin-bottom:16px;}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
.post-card:hover .thumb img{transform:scale(1.04);}
.post-card h3{font-size:19px;line-height:1.4;margin:12px 0 10px;}
.post-card h3 a{color:var(--ink);}
.post-card h3 a:hover{color:var(--brand);}
.post-card .excerpt{font-size:15px;line-height:1.75;color:var(--ink-2);margin:0 0 16px;}
.post-card .meta{
  display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);
  margin-top:auto;letter-spacing:.02em;
}
/* ---------- cta ---------- */
.cta-band{
  background:var(--brand-dark);color:#fff;border-radius:20px;padding:48px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;left:-70px;bottom:-90px;width:220px;height:220px;border-radius:50%;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.14),inset 0 0 0 38px rgba(255,255,255,.05);
  pointer-events:none;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,28px);margin-bottom:10px;position:relative;z-index:1;}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;margin:0;position:relative;z-index:1;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}
/* ---------- footer ---------- */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.8);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--accent);}
.footer-brand-name{color:#fff;font-size:17px;font-weight:700;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);margin:0 0 18px;}
.footer-quick{display:flex;gap:16px;flex-wrap:wrap;}
.footer-quick a{font-size:14px;color:rgba(255,255,255,.82);}
.footer-quick a:hover{color:var(--accent);}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-list{list-style:none;margin:0;padding:0;}
.footer-list li{margin-bottom:12px;font-size:14px;color:rgba(255,255,255,.68);}
.footer-list a{color:rgba(255,255,255,.82);display:inline-block;transition:transform .2s ease,color .2s ease;}
.footer-list a:hover{color:var(--accent);transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;
  align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}
/* ---------- responsive ---------- */
@media screen and (max-width:1024px){
  .section{padding:64px 0;}
  .article-body{padding:32px 28px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:36px 28px;}
}
@media screen and (max-width:640px){
  .container{padding:0 20px;}
  .header-inner{height:64px;}
  .nav-links{display:none;}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-actions .btn-sm{display:none;}
  .section{padding:48px 0;}
  .article-hero{padding:24px 0 28px;}
  .article-wrap{padding:40px 0 56px;}
  .article-body{padding:24px 20px;}
  .article-body p,.article-body li{font-size:16px;}
  .card-grid{grid-template-columns:1fr;}
  .post-nav{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band{padding:28px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}
/* foundation overrides */
.foundation-off,body{background:var(--bg);}
button,.button{border-radius:var(--r-btn);}
.grid-container{padding-left:24px;padding-right:24px;}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
:root{
  --brand:#0F4A45;
  --brand-deep:#0A3634;
  --brand-tint:rgba(15,74,69,.08);
  --brand-tint-2:rgba(15,74,69,.12);
  --accent:#E2703A;
  --accent-deep:#C85A28;
  --accent-tint:rgba(226,112,58,.10);
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --text:#141F1E;
  --muted:#55625F;
  --weak:#8B948F;
  --line:#E4E0D6;
  --ok:#2E8B72;
  --warn:#C0392B;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-badge:6px;
  --sh-sm:0 1px 2px rgba(15,74,69,.06);
  --sh-md:0 8px 24px -12px rgba(15,74,69,.18);
  --sh-lg:0 24px 48px -24px rgba(15,74,69,.22);
  --sec:96px;
  --font:"Manrope","Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}

/* ========== 基础重置 ========== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .22s ease,transform .22s ease}
a:hover,a:focus{color:var(--accent-deep)}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--text);line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:0;background:none;color:inherit;padding:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
::selection{background:var(--brand-tint-2)}

/* Foundation 默认样式覆盖 */
a.button,a.button:hover{color:#fff}
.button{background:var(--brand);color:#fff;border-radius:var(--r-btn);padding:0 24px;height:46px;line-height:44px;font-size:15px;font-weight:600;margin:0}
.accordion{border:0;background:transparent}
.accordion-title{border:0}
.accordion-content{border:0}

/* ========== 排版与容器 ========== */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

.section{padding:var(--sec) 0}
.section--tight{padding:64px 0}
.section--plain{background:var(--surface)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head__text{max-width:640px}
.section-title{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.32;letter-spacing:-.01em;margin-bottom:14px;position:relative;padding-top:18px}
.section-title::before{content:"";position:absolute;left:0;top:0;width:40px;height:3px;background:var(--accent);border-radius:2px}
.section-lead{font-size:15px;color:var(--muted);line-height:1.8;max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--brand);background:var(--brand-tint);border-radius:var(--r-badge);padding:4px 10px;margin-bottom:16px}

/* ========== 按钮 ========== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;
  transition:background .25s ease,color .25s ease,box-shadow .25s ease,transform .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-sm)}
.btn-primary:hover,.btn-primary:focus{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-sm)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover,.btn-ghost:focus{background:var(--brand-tint);color:var(--brand)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost-light:hover,.btn-ghost-light:focus{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.text-link i{font-size:12px;transition:transform .22s ease}
.text-link:hover{color:var(--accent-deep);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px}
.text-link:hover i{transform:translateX(4px)}
.text-link-light{color:#EDE7DC}
.text-link-light:hover{color:var(--accent)}

/* ========== 徽章与标签 ========== */
.badge{display:inline-block;font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--r-badge);background:var(--brand-tint);color:var(--brand);letter-spacing:.02em}
.badge-accent{background:var(--accent);color:#fff}
.tag{display:inline-block;font-size:13px;color:var(--muted);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:6px 14px}

/* ========== 顶部导航 ========== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,239,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-md)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:17px;letter-spacing:-.01em}
.brand:hover{color:var(--text)}
.brand-mark{
  position:relative;width:28px;height:28px;flex:0 0 28px;border-radius:9px;
  background:var(--brand);display:inline-block;overflow:hidden;
}
.brand-mark::before{
  content:"";position:absolute;right:-6px;top:-8px;width:24px;height:24px;border-radius:50%;
  background:var(--accent);opacity:.9;
}
.brand-mark::after{
  content:"";position:absolute;left:5px;bottom:5px;width:12px;height:12px;border:1.5px solid rgba(255,255,255,.7);
  border-radius:50%;border-right-color:transparent;border-top-color:transparent;
}
.brand-name{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-link{
  position:relative;padding:6px 2px 10px;font-size:15px;font-weight:600;color:var(--muted);
  transition:color .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left center;
  transition:transform .2s ease-out;
}
.nav-link:hover,.nav-link:focus{color:var(--brand)}
.nav-link:hover::after,.nav-link:focus::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 移动抽屉 */
.drawer-backdrop{position:fixed;inset:0;background:rgba(10,54,52,.45);z-index:90;opacity:0;transition:opacity .3s ease}
.drawer-backdrop.is-open{opacity:1}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:86%;max-width:360px;z-index:100;
  background:var(--brand-deep);color:#fff;display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .32s ease-out;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid rgba(255,255,255,.12)}
.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px;color:#fff}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.2);color:#fff;display:flex;align-items:center;justify-content:center}
.drawer-nav{flex:1;overflow-y:auto;padding:8px 0}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;padding:0 22px;color:#EDE7DC;font-size:15px;font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.drawer-nav a:hover,.drawer-nav a:focus{color:var(--accent);background:rgba(255,255,255,.04)}
.drawer-nav a.is-active{color:#fff}
.drawer-nav a.is-active::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);margin-right:10px}
.drawer-foot{padding:18px 22px 24px;border-top:1px solid rgba(255,255,255,.12)}
.drawer-foot p{font-size:13px;color:rgba(255,255,255,.6);margin-bottom:12px}

/* ========== 面包屑 ========== */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--weak);margin-bottom:18px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--brand);font-weight:600}

/* ========== 类目头区 ========== */
.page-hero{
  position:relative;overflow:hidden;
  padding:64px 0 72px;min-height:300px;
  display:flex;align-items:center;
  background:var(--bg);
}
.page-hero__media{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center right;
  z-index:0;
}
.page-hero__tint{position:absolute;inset:0;background:rgba(246,244,239,.93);z-index:1}
.page-hero__inner{position:relative;z-index:3;max-width:720px}
.page-hero h1{
  font-size:clamp(28px,3.6vw,42px);font-weight:800;line-height:1.24;letter-spacing:-.02em;
  margin-bottom:16px;
}
.page-hero__lead{font-size:16px;color:var(--muted);line-height:1.85;max-width:560px;margin-bottom:26px}
.page-hero__actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.arc-deco{position:absolute;right:-70px;top:-70px;width:320px;height:320px;z-index:2;pointer-events:none}
.arc-fill{position:absolute;right:0;bottom:0;width:220px;height:220px;border-radius:50% 0 0 50%;background:var(--brand-tint-2)}
.arc-ring{position:absolute;right:30px;top:30px;width:262px;height:262px;border-radius:50%;border:1px solid rgba(15,74,69,.16)}
.arc-ring--2{right:-16px;top:-16px;width:352px;height:352px;border-color:rgba(226,112,58,.22)}

/* ========== 卡片矩阵 ========== */
.cards-grid{margin-bottom:-24px}
.info-card{
  height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--sh-sm);display:flex;flex-direction:column;
  transition:transform .35s ease-out,box-shadow .35s ease-out,border-color .35s ease-out;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:rgba(15,74,69,.3)}
.info-card__icon{
  width:46px;height:46px;border-radius:10px;background:var(--brand-tint);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:18px;
}
.info-card h3{font-size:20px;line-height:1.4;margin-bottom:12px}
.info-card p{font-size:15px;color:var(--muted);line-height:1.8;margin-bottom:16px}
.info-card ul{display:flex;flex-direction:column;gap:8px;margin-bottom:20px}
.info-card ul li{position:relative;padding-left:16px;font-size:14.5px;color:var(--muted);line-height:1.72}
.info-card ul li::before{content:"";position:absolute;left:0;top:.68em;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.info-card .text-link{margin-top:auto}

/* ========== 要点对照块 ========== */
.compare-block{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:36px;box-shadow:var(--sh-sm);
}
.compare-block__head h3{font-size:22px;margin-bottom:12px}
.compare-block__head p{font-size:15px;color:var(--muted);line-height:1.8;margin-bottom:16px}
.compare-col{background:var(--bg);border-radius:var(--r-card);padding:24px;height:100%}
.compare-col__title{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;margin-bottom:16px}
.compare-col__title i{width:30px;height:30px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:14px}
.compare-col--a .compare-col__title i{background:var(--brand-tint);color:var(--brand)}
.compare-col--b .compare-col__title i{background:var(--accent-tint);color:var(--accent-deep)}
.compare-col ul{display:flex;flex-direction:column;gap:12px}
.compare-col ul li{position:relative;padding-left:24px;font-size:14.5px;color:var(--muted);line-height:1.75}
.compare-col ul li i{position:absolute;left:0;top:.35em;font-size:12px}
.compare-col--a ul li i{color:var(--brand)}
.compare-col--b ul li i{color:var(--accent-deep)}

/* ========== 图文区块 ========== */
.feature-split{align-items:center}
.feature-media{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-sm)}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s ease-out}
.feature-media:hover img{transform:scale(1.04)}
.feature-media::after{content:"";position:absolute;inset:0;background:rgba(15,74,69,.06);pointer-events:none}
.feature-body h3{font-size:24px;line-height:1.36;margin-bottom:14px}
.feature-body p{font-size:15.5px;color:var(--muted);line-height:1.85;margin-bottom:20px}
.feature-list{display:flex;flex-direction:column;gap:16px;margin-bottom:24px}
.feature-list li{display:flex;gap:14px}
.feature-list li i{flex:0 0 22px;height:22px;margin-top:5px;border-radius:50%;background:var(--brand-tint);color:var(--brand);font-size:11px;display:flex;align-items:center;justify-content:center}
.feature-list li strong{display:block;font-size:15.5px;font-weight:700;margin-bottom:2px}
.feature-list li span{font-size:14.5px;color:var(--muted);line-height:1.75}

/* ========== FAQ ========== */
.faq-layout{align-items:flex-start}
.faq-aside h3{font-size:24px;line-height:1.36;margin-bottom:14px}
.faq-aside p{font-size:15px;color:var(--muted);line-height:1.8;margin-bottom:18px}
.faq-accordion{
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);
  overflow:hidden;box-shadow:var(--sh-sm);
}
.faq-accordion .accordion-item{border-bottom:1px solid var(--line)}
.faq-accordion .accordion-item:last-child{border-bottom:0}
.faq-accordion .accordion-title{
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--text);background:var(--surface);
  border:0;line-height:1.6;
}
.faq-accordion .accordion-title:hover{color:var(--brand);background:rgba(15,74,69,.03)}
.faq-accordion .accordion-title::before{display:none}
.faq-icon{
  position:relative;flex:0 0 32px;width:32px;height:32px;margin-top:2px;
  border:1.5px solid var(--brand);border-radius:50%;transition:background .25s ease,border-color .25s ease;
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);transition:height .25s ease,background .25s ease}
.faq-icon::before{left:50%;top:8px;width:2px;height:12px;margin-left:-1px}
.faq-icon::after{top:50%;left:8px;width:12px;height:2px;margin-top:-1px}
.faq-accordion .accordion-item.is-open .faq-icon{background:var(--brand);border-color:var(--brand)}
.faq-accordion .accordion-item.is-open .faq-icon::before{height:0;background:#fff}
.faq-accordion .accordion-item.is-open .faq-icon::after{background:#fff}
.faq-accordion .accordion-item.is-open .accordion-title{color:var(--brand)}
.faq-accordion .accordion-content{padding:0 24px 22px;border:0;background:var(--surface);color:var(--muted);font-size:15px;line-height:1.85}
.faq-accordion .accordion-content p{font-size:15px;color:var(--muted);line-height:1.85}

/* ========== 底部通栏 CTA ========== */
.cta-band{position:relative;overflow:hidden;background:var(--brand-deep);color:#fff;padding:64px 0}
.cta-band__inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);color:#fff;line-height:1.34;margin-bottom:12px}
.cta-band p{font-size:15px;color:rgba(255,255,255,.72);max-width:520px;line-height:1.8}
.cta-band__actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.cta-arc{position:absolute;right:-60px;bottom:-90px;width:300px;height:300px;z-index:1;pointer-events:none}
.cta-arc span{position:absolute;border-radius:50%;inset:0}
.cta-arc span:nth-child(1){border:1px solid rgba(226,112,58,.5)}
.cta-arc span:nth-child(2){inset:44px;border:1px solid rgba(255,255,255,.14)}
.cta-arc span:nth-child(3){inset:88px;border:1px solid rgba(255,255,255,.1)}

/* ========== 页脚 ========== */
.site-footer{background:var(--brand-deep);color:#EDE7DC;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:26px;height:26px;flex:0 0 26px}
.footer-brand-name{font-size:16px;font-weight:700;color:#fff}
.footer-desc{font-size:14px;color:rgba(255,255,255,.62);line-height:1.8;margin-bottom:16px;max-width:320px}
.footer-quick{display:flex;flex-wrap:wrap;gap:10px}
.footer-quick a{
  font-size:13px;color:#EDE7DC;border:1px solid rgba(255,255,255,.2);border-radius:999px;padding:5px 12px;
}
.footer-quick a:hover{color:var(--accent);border-color:rgba(226,112,58,.6);transform:translateX(2px)}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-list{display:flex;flex-direction:column;gap:12px}
.footer-list li a,.footer-list li span{font-size:14px;color:rgba(255,255,255,.66);line-height:1.7;display:inline-block;transition:color .2s ease,transform .2s ease}
.footer-list li a:hover{color:var(--accent);transform:translateX(2px)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;font-size:13px;color:rgba(255,255,255,.5);
}

/* ========== 响应式 ========== */
@media (max-width:1024px){
  :root{--sec:64px}
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .page-hero{min-height:auto;padding:52px 0 56px}
  .arc-deco{width:240px;height:240px;right:-80px;top:-80px}
  .arc-fill{width:160px;height:160px}
  .arc-ring{width:190px;height:190px;right:20px;top:20px}
  .arc-ring--2{width:250px;height:250px;right:-12px;top:-12px}
  .compare-block{padding:28px}
  .feature-body{margin-top:24px}
  .faq-aside{margin-bottom:28px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:30px}
  .page-hero h1{font-size:26px}
  .page-hero__lead{font-size:15px}
  .compare-block__head{margin-bottom:22px}
  .compare-col{margin-bottom:16px}
  .cta-band__inner{flex-direction:column;align-items:flex-start;gap:22px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  :root{--sec:48px}
  .header-inner{height:64px}
  .brand{font-size:15px}
  .brand-mark{width:24px;height:24px;flex:0 0 24px}
  .info-card{padding:22px 20px}
  .compare-block{padding:22px 18px}
  .faq-accordion .accordion-title{padding:16px 18px;font-size:15.5px}
  .faq-accordion .accordion-content{padding:0 18px 18px}
  .btn{width:100%}
  .page-hero__actions .text-link{width:auto}
  .cta-band__actions{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --brand:#0F4A45;
  --brand-dark:#0A3634;
  --brand-06:rgba(15,74,69,.06);
  --brand-08:rgba(15,74,69,.08);
  --brand-12:rgba(15,74,69,.12);
  --brand-18:rgba(15,74,69,.18);
  --brand-30:rgba(15,74,69,.30);
  --accent:#E2703A;
  --accent-dark:#C85A28;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --dark:#0A3634;
  --text:#141F1E;
  --text-2:#55625F;
  --text-3:#8B948F;
  --line:#E4E0D6;
  --success:#2E8B72;
  --danger:#C0392B;
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-badge:6px;
  --shadow-sm:0 1px 2px rgba(15,74,69,.06);
  --shadow-md:0 8px 24px -12px rgba(15,74,69,.18);
  --shadow-lg:0 24px 48px -24px rgba(15,74,69,.22);
  --section:96px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Manrope","Inter",-apple-system,sans-serif;
  --font:"Manrope","Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--brand);text-decoration:none;transition:color .25s ease, transform .25s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

/* ---------- Foundation 覆盖 ---------- */
a:hover,a:focus{color:var(--accent);}
.button,.button:focus{background:var(--brand);color:#fff;border:0;border-radius:var(--r-btn);box-shadow:none;}
.button:hover{background:var(--brand-dark);color:#fff;}
button,.button{margin:0;}
input[type="text"],input[type="password"],input[type="email"],select,textarea{
  height:48px;border-radius:var(--r-input);border:1px solid var(--line);
  box-shadow:none;background:#fff;padding:12px 14px;transition:border-color .25s ease, box-shadow .25s ease;
}
input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-12);}
.menu li{list-style:none;}
table{border-collapse:collapse;background:#fff;}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--section) 0;}
.section-head{max-width:760px;}
.section-head h2{font-size:clamp(26px,3vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.01em;}
.section-head h2::after{content:"";display:block;width:40px;height:3px;background:var(--accent);border-radius:3px;margin-top:16px;}
.section-head p{margin-top:16px;color:var(--text-2);font-size:15px;line-height:1.75;max-width:38em;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:var(--brand);background:var(--brand-08);padding:6px 12px;border-radius:var(--r-badge);}
.eyebrow i{font-size:12px;color:var(--accent);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.92);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-md);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:800;letter-spacing:-.01em;}
.brand:hover{color:var(--text);}
.brand-mark{
  position:relative;width:30px;height:30px;flex:none;border-radius:9px;
  background:var(--brand);overflow:hidden;
}
.brand-mark::before{
  content:"";position:absolute;left:6px;top:6px;width:24px;height:24px;
  border:2px solid var(--accent);border-radius:50%;
}
.brand-mark::after{
  content:"";position:absolute;left:12px;top:12px;width:24px;height:24px;
  border:1px solid rgba(255,255,255,.45);border-radius:50%;
}
.brand-name{font-size:17px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:72px;
  padding:0 16px;color:var(--text-2);font-size:15px;font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:16px;bottom:20px;width:0;height:2px;background:var(--accent);
  transition:width .2s ease, opacity .2s ease;opacity:0;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{width:24px;opacity:1;}
.nav-link.is-active{color:var(--brand);font-weight:700;}
.nav-link.is-active::after{width:24px;opacity:1;}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 22px;
  background:var(--brand);color:#fff;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  transition:background .25s ease, transform .25s ease, box-shadow .25s ease;
}
.nav-cta:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.nav-cta:active{transform:translateY(1px);box-shadow:var(--shadow-sm);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);
  align-items:center;justify-content:center;color:var(--brand);background:#fff;
}
.nav-toggle:hover{border-color:var(--brand-30);}

.drawer-mask{
  position:fixed;inset:0;background:rgba(10,54,52,.45);opacity:0;visibility:hidden;
  transition:opacity .3s ease, visibility .3s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:86%;max-width:360px;background:var(--dark);
  z-index:90;transform:translateX(100%);transition:transform .32s ease-out;
  display:flex;flex-direction:column;padding:24px 0 0;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 24px 20px;color:#fff;}
.drawer-head .brand-mark{background:#fff;}
.drawer-head .brand-mark::before{border-color:var(--accent);}
.drawer-head .brand-mark::after{border-color:rgba(15,74,69,.35);}
.drawer-head span{font-weight:700;font-size:16px;}
.drawer-close{width:40px;height:40px;border-radius:10px;color:#fff;border:1px solid rgba(255,255,255,.25);display:flex;align-items:center;justify-content:center;}
.drawer-nav{flex:1;overflow-y:auto;}
.drawer-nav a{
  display:flex;align-items:center;height:56px;padding:0 24px;color:#fff;font-size:16px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--accent);background:rgba(255,255,255,.04);}
.drawer-foot{padding:20px 24px 28px;}
.drawer-foot .button{width:100%;height:48px;display:inline-flex;align-items:center;justify-content:center;background:var(--accent);border-radius:999px;font-weight:600;}
.drawer-foot .button:hover{background:var(--accent-dark);}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--brand);font-weight:600;white-space:nowrap;}
.breadcrumb .current::after{content:"";display:block;height:0;}

/* ---------- 类目头区 ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  min-height:300px;display:flex;align-items:center;
  background:linear-gradient(180deg,#F1EEE6 0%,#F6F4EF 100%);
  border-bottom:1px solid var(--line);
}
.cat-hero::before{
  content:"";position:absolute;left:-120px;top:-90px;width:340px;height:340px;
  background:var(--brand-12);border-radius:50%;
}
.cat-hero::after{
  content:"";position:absolute;left:-60px;top:-30px;width:260px;height:260px;
  border:1px solid var(--brand-18);border-radius:50%;
}
.cat-hero .arc-line{
  position:absolute;left:-10px;top:20px;width:200px;height:200px;
  border:1px solid var(--brand-12);border-radius:50%;pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;padding:56px 0;}
.cat-hero h1{
  font-size:clamp(28px,3.4vw,42px);font-weight:800;line-height:1.2;letter-spacing:-.02em;
  margin:18px 0 14px;max-width:18em;
}
.cat-hero .lead{color:var(--text-2);font-size:16px;line-height:1.8;max-width:36em;}
.cat-hero .hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  transition:background .25s ease, color .25s ease, border-color .25s ease, transform .25s ease, box-shadow .25s ease;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--shadow-sm);}
.btn-ghost{background:transparent;color:var(--brand);border:1.5px solid var(--brand);}
.btn-ghost:hover{background:var(--brand-08);color:var(--brand);}
.btn-on-dark{background:var(--accent);color:#fff;border-radius:999px;}
.btn-on-dark:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-outline-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5);border-radius:999px;}
.btn-outline-light:hover{background:rgba(255,255,255,.1);color:#fff;border-color:#fff;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;}
.link-arrow i{transition:transform .25s ease;font-size:13px;}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover i{transform:translateX(4px);}
.link-arrow:hover span{border-bottom:2px solid var(--accent);}

/* ---------- 时间轴 ---------- */
.steps-wrap{position:relative;}
.timeline{position:relative;margin-top:48px;padding-left:0;}
.timeline::before{
  content:"";position:absolute;left:23px;top:12px;bottom:12px;width:2px;background:var(--brand-18);
}
.timeline-item{position:relative;padding:0 0 36px 72px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-node{
  position:absolute;left:0;top:0;width:48px;height:48px;border-radius:50%;
  background:#fff;border:2px solid var(--brand);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-weight:700;font-size:15px;
}
.timeline-item:hover .timeline-node{background:var(--brand);color:#fff;transition:background .3s ease,color .3s ease;}
.timeline-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--shadow-sm);transition:box-shadow .35s ease, transform .35s ease;
}
.timeline-body:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);}
.timeline-body h3{font-size:20px;font-weight:700;line-height:1.4;}
.timeline-body p{margin-top:10px;color:var(--text-2);font-size:15px;line-height:1.8;max-width:40em;}
.timeline-meta{margin-top:14px;display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--brand);
  background:var(--brand-08);border-radius:var(--r-badge);padding:4px 10px;
}
.tag.accent{background:rgba(226,112,58,.12);color:var(--accent-dark);}

/* ---------- 对比表 ---------- */
.compare-block{
  margin-top:56px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-sm);overflow:hidden;
}
.compare-head{padding:26px 28px 0;}
.compare-head h3{font-size:21px;font-weight:700;}
.compare-head p{margin-top:8px;color:var(--text-2);font-size:15px;max-width:42em;}
.table-scroll{overflow-x:auto;padding:20px 28px 28px;-webkit-overflow-scrolling:touch;}
table.compare{width:100%;min-width:640px;border:0;font-size:15px;}
table.compare thead th{
  background:rgba(15,74,69,.08);color:var(--brand);font-weight:700;text-align:left;
  padding:14px 18px;border:0;font-size:14px;letter-spacing:.02em;
}
table.compare thead th:first-child{border-radius:0;}
table.compare tbody td{
  padding:16px 18px;border:0;border-bottom:1px solid var(--line);color:var(--text-2);vertical-align:top;
  background:transparent;
}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare tbody tr:hover td{background:#FBF9F4;}
table.compare td:first-child{color:var(--text);font-weight:600;}
table.compare td strong{color:var(--brand);font-weight:700;}

/* ---------- 内容卡片 ---------- */
.cards-grid{margin-top:44px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);overflow:hidden;height:100%;
  display:flex;flex-direction:column;
  transition:transform .35s ease-out, box-shadow .35s ease-out, border-color .35s ease-out;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-30);}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--brand-08);}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .35s ease-out;}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:20px;font-weight:700;line-height:1.4;}
.card-body p{margin-top:12px;color:var(--text-2);font-size:15px;line-height:1.8;flex:1;}
.card-foot{margin-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.meta{font-size:13px;color:var(--text-3);letter-spacing:.02em;display:flex;align-items:center;gap:8px;}
.meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);display:inline-block;}

/* ---------- 引导条 ---------- */
.entry-bar{
  margin-top:64px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:var(--r-card);padding:28px 32px;box-shadow:var(--shadow-sm);
}
.entry-bar h3{font-size:20px;font-weight:700;}
.entry-bar p{margin-top:8px;color:var(--text-2);font-size:15px;max-width:40em;}
.entry-bar .entry-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- FAQ ---------- */
.faq-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);overflow:hidden;margin-top:8px;}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--text);
  min-height:44px;transition:color .25s ease, background .25s ease;
}
.faq-q:hover{color:var(--brand);background:#FBF9F4;}
.faq-icon{
  flex:none;width:32px;height:32px;border-radius:50%;border:1.5px solid var(--brand);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:13px;
  transition:background .25s ease,color .25s ease,transform .25s ease;
}
.faq-item.is-open .faq-icon{background:var(--brand);color:#fff;transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-a-inner{padding:0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.85;max-width:46em;}

/* ---------- 底部 CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--dark);color:#fff;padding:72px 0;}
.cta-band::before{
  content:"";position:absolute;right:-100px;bottom:-140px;width:320px;height:320px;
  border-radius:50%;background:rgba(255,255,255,.05);
}
.cta-band::after{
  content:"";position:absolute;right:-40px;bottom:-80px;width:220px;height:220px;
  border:1px solid rgba(226,112,58,.35);border-radius:50%;
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-inner h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;}
.cta-inner p{margin-top:12px;color:rgba(255,255,255,.75);font-size:15px;max-width:36em;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.8);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;}
.footer-brand .brand-mark{background:#fff;}
.footer-brand .brand-mark::before{border-color:var(--accent);}
.footer-brand .brand-mark::after{border-color:rgba(15,74,69,.35);}
.footer-brand-name{font-size:17px;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);max-width:26em;}
.footer-quick{margin-top:18px;display:flex;flex-wrap:wrap;gap:12px;}
.footer-quick a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-quick a:hover{color:var(--accent);}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-list li{margin-bottom:12px;}
.footer-list a,.footer-list span{font-size:14px;color:rgba(255,255,255,.68);}
.footer-list a:hover{color:var(--accent);transform:translateX(2px);display:inline-block;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* ---------- 断点 ---------- */
@media (min-width:1440px){
  .container{max-width:1280px;}
}
@media (max-width:1024px){
  :root{--section:64px;}
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cat-hero-inner{padding:48px 0;}
  .entry-bar{padding:24px;}
}
@media (max-width:640px){
  :root{--section:48px;}
  .container{padding:0 20px;}
  body{font-size:16px;}
  .cat-hero{min-height:0;}
  .cat-hero-inner{padding:40px 0;}
  .cat-hero::before{width:220px;height:220px;left:-110px;top:-100px;}
  .cat-hero::after{width:170px;height:170px;left:-60px;top:-50px;}
  .cat-hero .arc-line{display:none;}
  .timeline::before{left:19px;}
  .timeline-item{padding:0 0 28px 62px;}
  .timeline-node{width:40px;height:40px;font-size:13px;}
  .timeline-body{padding:20px;}
  .compare-head{padding:22px 20px 0;}
  .table-scroll{padding:16px 20px 22px;}
  .card-body{padding:20px;}
  .entry-bar{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}