/* roulang page: index */
:root{
  --c-primary:#2E6E8E;
  --c-primary-d:#23586F;
  --c-primary-x:#1A4356;
  --c-primary-soft:#E4EEF3;
  --c-accent:#C97B4A;
  --c-bg:#FBFAF8;
  --c-surface:#FFFFFF;
  --c-sand:#F3ECE3;
  --c-ink:#14242C;
  --c-ink-2:#4A5C64;
  --c-muted:#7B8A91;
  --c-line:#E4E8EB;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-num:Inter,"SF Pro Display",system-ui,tabular-nums;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(20,36,44,.06);
  --sh-2:0 10px 30px rgba(20,36,44,.10);
  --sh-3:0 16px 40px rgba(20,36,44,.14);
  --sp-section:88px;
}

/* ===== 基础重置 ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary-d)}
h1,h2,h3,h4,p,figure,ul,ol,dl,dd{margin:0;padding:0}
ul,ol{list-style:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
::selection{background:var(--c-primary-soft);color:var(--c-primary-x)}

/* 覆盖 Foundation 默认观感 */
a,a:visited{color:var(--c-primary)}
a:hover,a:focus{color:var(--c-primary-d)}
.button{background-color:var(--c-primary);color:#fff;border-radius:var(--r-btn);font-weight:600}
.button:hover{background-color:var(--c-primary-d)}
.callout{background:var(--c-primary-soft);border-radius:var(--r-card);border:none}
table{border-collapse:collapse}
.grid-container{padding-left:20px;padding-right:20px}
.badge{background:var(--c-primary-soft);color:var(--c-primary)}

/* ===== 容器 ===== */
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}

/* ===== 通用文本 ===== */
.h1{font-size:clamp(28px,4vw,44px);line-height:1.22;font-weight:700;letter-spacing:-.4px}
.sec-title{font-size:clamp(23px,3vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.3px;color:var(--c-ink)}
.sec-sub{font-size:15px;line-height:1.8;color:var(--c-ink-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  letter-spacing:.5px;margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--c-primary);border-radius:2px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{background:var(--c-primary-x);color:#fff;transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-d);border-color:var(--c-primary-d)}
.btn-sand{background:var(--c-surface);color:var(--c-primary-x)}
.btn-sand:hover{background:#fff;color:var(--c-primary);box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--c-primary);
  min-height:44px;
}
.link-arrow i{font-size:13px;transition:transform .18s ease}
.link-arrow:hover i{transform:translateX(3px)}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1;
}
.badge-primary{background:var(--c-primary-soft);color:var(--c-primary)}
.badge-accent{background:rgba(201,123,74,.10);color:var(--c-accent)}
.badge-light{background:rgba(255,255,255,.18);color:#fff;border:1px solid rgba(255,255,255,.35)}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);font-size:12px;color:var(--c-ink-2);
  background:var(--c-sand);
}

/* ===== 顶部微条 ===== */
.topbar{background:var(--c-primary-soft);font-size:13px;color:var(--c-primary-x)}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:36px}
.topbar-left{display:flex;align-items:center;gap:8px}
.topbar-right{display:flex;align-items:center;gap:20px}
.topbar-right a{color:var(--c-primary-x);font-weight:500}
.topbar-right a:hover{color:var(--c-primary)}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease;
}
.site-header.scrolled{box-shadow:var(--sh-1)}
.site-header .container{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;transition:height .2s ease;
}
.site-header.scrolled .container{height:64px}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:var(--c-ink);letter-spacing:-.2px}
.logo:hover{color:var(--c-ink)}
.logo-mark{width:32px;height:32px;flex:0 0 auto}
.logo-text{white-space:nowrap}
.nav{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:44px;padding:0 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--c-ink-2);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:center;
  transition:transform .18s ease;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--c-primary);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  align-items:center;justify-content:center;font-size:19px;color:var(--c-ink);
  border:1px solid var(--c-line);background:#fff;
}
.nav-toggle:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:var(--c-primary-soft)}

/* ===== 移动抽屉 ===== */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,36,44,.4);
  opacity:0;pointer-events:none;transition:opacity .22s ease;z-index:80;
}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;
  background:#fff;z-index:90;display:flex;flex-direction:column;
  padding:20px 20px 24px;transform:translateX(102%);
  transition:transform .24s cubic-bezier(.4,0,.2,1);
  box-shadow:-10px 0 40px rgba(20,36,44,.16);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line)}
.drawer-title{font-size:16px;font-weight:700;color:var(--c-ink)}
.drawer-close{width:44px;height:44px;display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--c-ink-2);border-radius:10px}
.drawer-close:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.drawer-nav{display:flex;flex-direction:column;gap:2px;padding:14px 0;flex:1;overflow-y:auto}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:50px;padding:0 14px;border-radius:10px;
  font-size:16px;font-weight:500;color:var(--c-ink-2);
}
.drawer-nav a i{font-size:12px;color:var(--c-muted)}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--c-primary-soft);color:var(--c-primary)}
.drawer-nav a.active i{color:var(--c-primary)}
.drawer-foot{border-top:1px solid var(--c-line);padding-top:16px}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;background:var(--c-bg);padding:56px 0 88px}
.hero::after{
  content:"";position:absolute;top:-90px;right:-120px;width:640px;height:640px;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 600 600'%3E%3Cg fill='none' stroke='%232E6E8E' stroke-width='1.4'%3E%3Cpath d='M40 330c52-96 128-152 226-166 80-12 148 12 202 68 44 46 78 106 100 180'/%3E%3Cpath d='M104 372c40-72 98-114 174-126 62-10 116 10 158 58'/%3E%3Cpath d='M170 414c30-52 74-82 130-90 46-6 86 10 118 44'/%3E%3C/g%3E%3C/svg%3E");
  background-repeat:no-repeat;background-size:contain;
  opacity:.06;pointer-events:none;
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;
}
.hero-copy .badge{margin-bottom:18px}
.hero h1{margin-bottom:18px}
.hero-sub{font-size:17px;line-height:1.85;color:var(--c-ink-2);max-width:560px;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 28px}
.hero-point{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-ink-2);font-weight:500}
.hero-point i{color:var(--c-primary);font-size:14px}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:3/2;object-fit:cover;
  border-radius:var(--r-img);box-shadow:var(--sh-2);
}
.hero-media-card{
  position:absolute;right:-6px;bottom:-26px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-2);
  padding:16px 22px;min-width:200px;
}
.hero-media-card .num{
  font-family:var(--font-num);font-size:28px;font-weight:700;
  line-height:1.2;color:var(--c-accent);letter-spacing:-.5px;
}
.hero-media-card .txt{font-size:13px;color:var(--c-ink-2);margin-top:2px}

/* ===== 数据条 ===== */
.stats{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);padding:44px 0}
.stat{padding:0 24px;border-left:1px solid var(--c-line)}
.stat:first-child{border-left:none;padding-left:0}
.stat-num{
  font-family:var(--font-num);font-size:clamp(28px,3vw,36px);font-weight:700;
  line-height:1.15;color:var(--c-primary);letter-spacing:-1px;
}
.stat-num em{font-style:normal;font-size:16px;font-weight:600;color:var(--c-muted);margin-left:4px}
.stat-txt{font-size:14px;color:var(--c-ink-2);margin-top:6px}

/* ===== 板块通用 ===== */
.section{padding:var(--sp-section) 0}
.section-alt{background:var(--c-surface)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:40px;
}
.section-head .sec-sub{max-width:600px;margin-top:10px}

/* ===== 主推网格 ===== */
.feature-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.fcard{
  display:flex;flex-direction:column;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.fcard:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,110,142,.25)}
.fcard-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}
.fcard-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.fcard-body h3{font-size:18px;line-height:1.45;font-weight:700;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.fcard-body p{font-size:14px;line-height:1.7;color:var(--c-ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.fcard-meta{font-family:var(--font-num);font-size:13px;font-weight:600;color:var(--c-accent);margin-top:auto}
.fcard-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.fcard-link i{font-size:12px;transition:transform .18s ease}
.fcard:hover .fcard-link i{transform:translateX(3px)}
.fcard-main{
  grid-column:span 2;grid-row:span 2;
  position:relative;display:flex;align-items:flex-end;
  padding:30px;min-height:420px;border:1px solid var(--c-line);
}
.fcard-main>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .24s ease}
.fcard-main:hover>img{transform:scale(1.03)}
.fcard-main::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(20,36,44,.86),rgba(20,36,44,.42) 48%,rgba(20,36,44,.06));
}
.fcard-main-body{position:relative;z-index:1;color:#fff;display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.fcard-main-body h3{font-size:24px;line-height:1.35;font-weight:700;color:#fff;letter-spacing:-.3px}
.fcard-main-body p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.86);max-width:440px}
.fcard-main-body .fcard-meta{color:#F0C09B;margin-top:4px}
.fcard-main-body .fcard-link{color:#fff}
.fcard-main-body .fcard-link:hover{color:#fff}

/* ===== 评价轮播 ===== */
.review-wrap{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:center}
.review-intro .sec-sub{margin-top:14px}
.review-track-wrap{position:relative;overflow:hidden}
.review-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 2px 22px;scrollbar-width:none;
}
.review-track::-webkit-scrollbar{display:none}
.review-card{
  flex:0 0 calc(50% - 10px);scroll-snap-align:start;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:24px;display:flex;flex-direction:column;gap:14px;
  transition:box-shadow .18s ease,transform .18s ease;
}
.review-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.stars{display:flex;gap:3px;color:var(--c-accent);font-size:13px}
.review-card p{font-size:15px;line-height:1.8;color:var(--c-ink-2)}
.review-user{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:6px}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 auto;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;
}
.review-user div{display:flex;flex-direction:column;line-height:1.5}
.review-user strong{font-size:14px;font-weight:600;color:var(--c-ink)}
.review-user span{font-size:12px;color:var(--c-muted)}
.review-dots{display:flex;gap:8px;margin-top:4px}
.review-dot{
  width:8px;height:8px;border-radius:50%;background:var(--c-line);
  transition:background-color .18s ease,width .18s ease;
}
.review-dot.active{background:var(--c-primary);width:22px;border-radius:var(--r-pill)}

/* ===== 保障条 ===== */
.guard{background:var(--c-primary-soft);padding:36px 0}
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.guard-item{display:flex;align-items:center;gap:14px}
.guard-icon{
  width:44px;height:44px;border-radius:12px;flex:0 0 auto;
  background:#fff;color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:17px;
  box-shadow:var(--sh-1);
}
.guard-item strong{display:block;font-size:15px;font-weight:700;color:var(--c-primary-x);line-height:1.4}
.guard-item span{font-size:13px;color:var(--c-ink-2);line-height:1.6}

/* ===== 最新信息 ===== */
.news-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.news-item{
  display:flex;gap:18px;align-items:stretch;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:16px;color:inherit;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,110,142,.25);color:inherit}
.news-thumb{flex:0 0 168px}
.news-thumb img{width:168px;height:112px;object-fit:cover;border-radius:var(--r-img)}
.news-body{display:flex;flex-direction:column;gap:8px;min-width:0;flex:1}
.news-body h3{
  font-size:17px;line-height:1.45;font-weight:700;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-item:hover .news-body h3{color:var(--c-primary)}
.news-body p{
  font-size:14px;line-height:1.7;color:var(--c-ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto}
.news-date{font-family:var(--font-num);font-size:13px;color:var(--c-muted)}
.news-more{display:inline-flex;align-items:center;gap:5px;font-size:13px;font-weight:600;color:var(--c-primary)}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 20px;
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card);
}
.empty-state i{font-size:26px;color:var(--c-muted)}
.empty-state p{font-size:14px;color:var(--c-ink-2);margin:12px 0 18px}

/* ===== FAQ ===== */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 24px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:rgba(46,110,142,.25);box-shadow:var(--sh-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px 14px 20px;
  font-size:17px;font-weight:600;color:var(--c-ink);text-align:left;
  border-left:3px solid var(--c-primary);
}
.faq-q .ico{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;line-height:1;transition:transform .2s ease,background-color .2s ease;
}
.faq-item.open .faq-q .ico{transform:rotate(180deg);background:var(--c-primary);color:#fff}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .2s ease;
}
.faq-a p{
  padding:0 20px 20px 26px;font-size:15px;line-height:1.8;color:var(--c-ink-2);
}
.faq-item.open .faq-a{max-height:320px}

/* ===== 底部转化区 ===== */
.cta-band{background:var(--c-sand);overflow:hidden}
.cta-inner{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;padding:72px 0}
.cta-inner h2{font-size:clamp(23px,3vw,32px);line-height:1.3;font-weight:700;color:var(--c-ink);margin-bottom:14px}
.cta-inner p{font-size:15px;line-height:1.85;color:var(--c-ink-2);max-width:520px;margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.cta-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);
  box-shadow:var(--sh-2);
}

/* ===== 页脚 ===== */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:4fr 2.6fr 2.6fr 3fr;gap:40px;padding-bottom:48px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo:hover{color:#fff}
.footer-brand p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:300px}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.2px}
.footer-list{display:flex;flex-direction:column;gap:11px}
.footer-list a{
  font-size:14px;color:rgba(255,255,255,.66);display:inline-block;
  transition:color .18s ease,transform .18s ease;
}
.footer-list a:hover{color:#9FC7DA;transform:translateX(3px)}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14px;color:rgba(255,255,255,.62)}
.footer-contact div{display:flex;align-items:flex-start;gap:10px}
.footer-contact i{color:#9FC7DA;margin-top:4px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 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 span{font-family:var(--font-num)}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .container{max-width:1080px}
}
@media (max-width:1023px){
  :root{--sp-section:64px}
  .nav,.nav-actions{display:none}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero{padding:44px 0 72px}
  .hero-media{max-width:640px}
  .review-wrap{grid-template-columns:1fr;gap:36px}
  .feature-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .fcard-main{grid-column:span 2;grid-row:span 1;min-height:340px}
  .guard-grid{grid-template-columns:repeat(2,1fr);gap:20px 24px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px}
}
@media (max-width:767px){
  :root{--sp-section:48px}
  .container{padding-left:16px;padding-right:16px}
  .topbar{display:none}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px 0;padding:36px 0}
  .stat{padding:0 16px}
  .stat:nth-child(odd){border-left:none;padding-left:0}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .fcard-main{grid-column:span 2;grid-row:span 1;min-height:300px;padding:22px}
  .fcard-main-body h3{font-size:20px}
  .news-list{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .review-card{flex:0 0 86%}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:56px 0}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px}
  .hero-cta .btn{flex:1 1 auto}
}
@media (max-width:520px){
  .feature-grid{grid-template-columns:1fr}
  .fcard-main{grid-column:span 1}
  .news-item{flex-direction:column;gap:14px}
  .news-thumb img{width:100%;height:auto;aspect-ratio:16/9}
  .guard-grid{grid-template-columns:1fr}
  .logo-text{font-size:17px}
  .hero-media-card{position:static;margin-top:16px;min-width:0}
}

/* roulang page: category1 */
:root{
  --c-primary:#2E6E8E;
  --c-primary-d:#23586F;
  --c-primary-x:#1A4356;
  --c-primary-soft:#E4EEF3;
  --c-accent:#C97B4A;
  --c-bg:#FBFAF8;
  --c-surface:#FFFFFF;
  --c-sand:#F3ECE3;
  --c-ink:#14242C;
  --c-ink-2:#4A5C64;
  --c-muted:#7B8A91;
  --c-line:#E4E8EB;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:Inter,"SF Pro Display",system-ui,-apple-system,sans-serif;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(20,36,44,.06);
  --sh-2:0 10px 30px rgba(20,36,44,.10);
  --sh-3:0 16px 40px rgba(20,36,44,.14);
  --sec-y:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

/* Foundation 默认观感覆盖 */
body,a,.button,button{color:var(--c-ink);}
a:hover{color:var(--c-primary);}
.callout{background:var(--c-primary-soft);color:var(--c-ink);border:1px solid var(--c-line);border-radius:var(--r-card);}
.button,button.button{
  background:var(--c-primary);color:#fff;border-radius:var(--r-btn);
  background-image:none;border:0;box-shadow:none;font-weight:600;
}
.button:hover,button.button:hover{background:var(--c-primary-d);color:#fff;}
.badge{background:var(--c-primary-soft);color:var(--c-primary);border-radius:var(--r-pill);}
table thead{background:transparent;}
table tr:nth-child(even){background:transparent;}
[data-accordion] .accordion-item,[data-accordion] .accordion-title{background:transparent;border:0;color:inherit;}

/* 布局容器 */
.container{max-width:1200px;margin:0 auto;padding:0 20px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:var(--r-btn);
  font-weight:600;font-size:15px;line-height:1;
  transition:background-color 180ms ease,color 180ms ease,border-color 180ms ease,transform 180ms ease,box-shadow 180ms ease;
  cursor:pointer;border:1.5px solid transparent;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);}
.btn-primary:active{background:var(--c-primary-x);transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-d);}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;color:var(--c-primary);
  font-weight:600;font-size:15px;min-height:44px;
}
.btn-link i{transition:transform 180ms ease;}
.btn-link:hover i{transform:translateX(3px);}

/* 徽章与标签 */
.badge-pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;
  background:var(--c-primary-soft);color:var(--c-primary);letter-spacing:.02em;
}
.badge-accent{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;
  background:rgba(201,123,74,.12);color:var(--c-accent);
}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:60;height:72px;
  background:var(--c-surface);border-bottom:1px solid var(--c-line);
  transition:height 180ms ease,box-shadow 180ms ease;
}
.site-header.is-scrolled{height:64px;box-shadow:var(--sh-1);}
.site-header .container{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.logo{display:flex;align-items:center;gap:10px;min-height:44px;}
.logo-mark{width:34px;height:34px;flex:0 0 auto;}
.logo-text{font-size:20px;font-weight:700;letter-spacing:.01em;color:var(--c-ink);white-space:nowrap;}
.nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;color:var(--c-ink-2);transition:color 180ms ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:center;
  transition:transform 180ms ease;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link.active{color:var(--c-primary);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:14px;}
.nav-actions .btn{padding:10px 18px;font-size:14px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:var(--c-surface);color:var(--c-ink);cursor:pointer;font-size:18px;
}
.nav-backdrop{
  display:none;position:fixed;inset:0;background:rgba(20,36,44,.4);z-index:70;
}
.nav-backdrop.show{display:block;}

/* 窄幅 Hero */
.hero-narrow{
  background:var(--c-primary-soft);
  background-image:radial-gradient(circle at 88% 18%,rgba(46,110,142,.10) 0%,rgba(46,110,142,0) 46%);
  padding:40px 0 44px;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-muted);margin-bottom:18px;
}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb span.sep{color:var(--c-line);}
.hero-narrow h1{
  font-size:clamp(28px,4vw,44px);line-height:1.22;font-weight:700;
  letter-spacing:-.01em;max-width:820px;
}
.hero-narrow .hero-sub{
  margin-top:14px;font-size:16px;line-height:1.8;color:var(--c-ink-2);max-width:720px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}

/* 主体 */
.page-main{padding:var(--sec-y) 0 72px;}
.layout-split{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:start;
}

/* 小节标题 */
.sec-head{display:flex;align-items:flex-start;gap:12px;margin-bottom:22px;}
.sec-head::before{
  content:"";flex:0 0 4px;width:4px;height:26px;border-radius:2px;
  background:var(--c-primary);margin-top:4px;
}
.sec-head h2{font-size:clamp(23px,3vw,32px);line-height:1.3;font-weight:700;}
.sec-head p{margin-top:8px;font-size:15px;color:var(--c-ink-2);max-width:640px;}
.section-block + .section-block{margin-top:56px;}
h3.sub-title{font-size:19px;line-height:1.45;font-weight:700;margin-bottom:12px;}
.para{font-size:16px;line-height:1.8;color:var(--c-ink-2);}
.para + .para{margin-top:18px;}

/* 方案卡 */
.solution-list{display:grid;gap:24px;}
.solution-card{
  display:grid;grid-template-columns:184px minmax(0,1fr);gap:20px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:20px;
  transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
}
.solution-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,110,142,.25);}
.solution-card .thumb{
  border-radius:var(--r-img);overflow:hidden;aspect-ratio:4/3;background:var(--c-sand);
}
.solution-card .thumb img{width:100%;height:100%;object-fit:cover;}
.solution-card h3{font-size:19px;line-height:1.45;font-weight:700;}
.solution-card .card-desc{margin-top:8px;font-size:15px;line-height:1.75;color:var(--c-ink-2);}
.card-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:14px;
  font-size:13px;color:var(--c-muted);
}
.card-meta .num{font-family:var(--font-num);color:var(--c-accent);font-weight:600;}

/* 清单 */
.check-list li{
  position:relative;padding-left:20px;line-height:1.9;color:var(--c-ink-2);
}
.check-list li + li{margin-top:10px;}
.check-list li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;
  background:var(--c-primary);
}
.num-list{counter-reset:nl;}
.num-list li{
  position:relative;padding-left:34px;line-height:1.8;color:var(--c-ink-2);
}
.num-list li + li{margin-top:14px;}
.num-list li::before{
  counter-increment:nl;content:counter(nl,decimal-leading-zero);
  position:absolute;left:0;top:2px;font-family:var(--font-num);font-weight:700;
  font-size:14px;color:var(--c-accent);letter-spacing:.02em;
}
.num-list strong{color:var(--c-ink);}

/* 侧栏 */
.side-col{position:sticky;top:96px;display:grid;gap:20px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:20px;
}
.side-card h2,.side-card h3{font-size:18px;line-height:1.5;font-weight:700;}
.side-card .side-note{margin-top:6px;font-size:13px;color:var(--c-muted);}
.spec-list{margin-top:16px;}
.spec-row{
  display:grid;grid-template-columns:112px minmax(0,1fr);gap:12px;
  padding:12px 0;border-bottom:1px dashed var(--c-line);
}
.spec-row:last-child{border-bottom:0;}
.spec-k{font-size:13px;color:var(--c-ink-2);}
.spec-v{font-size:14px;color:var(--c-ink);font-weight:600;}
.spec-v .num{font-family:var(--font-num);color:var(--c-accent);}
.consult-card{
  background:var(--c-sand);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px;
}
.consult-card p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--c-ink-2);}
.consult-card .btn{width:100%;margin-top:16px;}
.consult-card .btn + .btn{margin-top:10px;}

/* FAQ */
.faq-list{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);position:relative;}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;min-height:56px;padding:14px 0 14px 16px;
  background:none;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;line-height:1.5;color:var(--c-ink);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--c-primary);border-radius:2px;
}
.faq-q .sign{
  flex:0 0 auto;width:22px;height:22px;position:relative;color:var(--c-primary);
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
  transition:transform 200ms ease,opacity 200ms ease;
}
.faq-q .sign::before{left:0;top:10px;width:22px;height:2px;}
.faq-q .sign::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.open .faq-q .sign::after{transform:scaleY(0);opacity:0;}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height 220ms ease;
}
.faq-a .faq-a-inner{
  padding:0 0 18px 16px;font-size:15px;line-height:1.8;color:var(--c-ink-2);
}
.faq-item.open .faq-a{max-height:420px;}

/* 底部转化区 */
.cta-band{
  background:var(--c-sand);
  background-image:radial-gradient(circle at 12% 78%,rgba(46,110,142,.10) 0%,rgba(46,110,142,0) 42%);
  padding:64px 0;
}
.cta-inner{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;
}
.cta-inner h2{font-size:clamp(23px,3vw,32px);line-height:1.3;font-weight:700;}
.cta-inner p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--c-ink-2);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}

/* 页脚 */
.site-footer{background:var(--c-ink);color:#CBD8DD;padding:64px 0 0;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.10);
}
.site-footer .logo-text{color:#fff;}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.75;color:#9FB2B9;max-width:300px;}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-list{display:grid;gap:10px;}
.footer-list a{
  font-size:14px;color:#9FB2B9;display:inline-block;
  transition:color 180ms ease,transform 180ms ease;
}
.footer-list a:hover{color:#fff;transform:translateX(3px);}
.footer-contact{display:grid;gap:12px;font-size:14px;color:#9FB2B9;}
.footer-contact div{display:flex;align-items:flex-start;gap:10px;}
.footer-contact i{color:var(--c-primary);margin-top:5px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding:22px 0 26px;font-size:13px;color:#7E9199;font-family:var(--font-num);
}

/* 响应式 */
@media (max-width:1023px){
  :root{--sec-y:64px;}
  .layout-split{grid-template-columns:1fr;gap:32px;}
  .side-col{position:static;}
  .solution-card{grid-template-columns:150px minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-inner{grid-template-columns:1fr;}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex;}
  .nav{
    position:fixed;top:0;right:0;height:100vh;width:84vw;max-width:360px;
    background:var(--c-surface);flex-direction:column;align-items:stretch;gap:0;
    padding:88px 20px 24px;z-index:80;transform:translateX(100%);
    transition:transform 220ms ease;box-shadow:var(--sh-2);overflow-y:auto;
  }
  .nav.open{transform:translateX(0);}
  .nav-link{height:52px;padding:0 8px;font-size:16px;border-bottom:1px solid var(--c-line);}
  .nav-link::after{display:none;}
  .nav-link.active{color:var(--c-primary);}
  .nav-actions{
    margin:20px 0 0;flex-direction:column;align-items:stretch;gap:12px;
    position:sticky;bottom:0;
  }
  .nav-actions .btn{width:100%;padding:14px 20px;font-size:15px;}
}
@media (max-width:767px){
  :root{--sec-y:48px;}
  .container{padding:0 16px;}
  .hero-narrow{padding:28px 0 32px;}
  .hero-narrow h1{font-size:clamp(26px,7vw,32px);}
  .page-main{padding:48px 0 56px;}
  .solution-card{grid-template-columns:1fr;gap:16px;padding:16px;}
  .solution-card .thumb{aspect-ratio:16/9;}
  .spec-row{grid-template-columns:1fr;gap:2px;padding:10px 0;}
  .spec-k{font-size:12px;color:var(--c-muted);}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{justify-content:flex-start;}
  .cta-band{padding:48px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}
@media (max-width:480px){
  .logo-text{font-size:17px;}
  .faq-q{font-size:16px;padding-left:14px;}
  .faq-item::before{left:0;}
}

/* roulang page: article */
:root{
  --c-primary:#2E6E8E;
  --c-primary-d:#23586F;
  --c-primary-x:#1A4356;
  --c-primary-soft:#E4EEF3;
  --c-accent:#C97B4A;
  --c-bg:#FBFAF8;
  --c-surface:#FFFFFF;
  --c-sand:#F3ECE3;
  --c-ink:#14242C;
  --c-ink-2:#4A5C64;
  --c-muted:#7B8A91;
  --c-line:#E4E8EB;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:Inter,"SF Pro Display",system-ui,"PingFang SC",sans-serif;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(20,36,44,.06);
  --sh-2:0 10px 30px rgba(20,36,44,.10);
  --sh-3:0 16px 40px rgba(20,36,44,.14);
  --tr:180ms ease;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;color:var(--c-ink);line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr);}
a:hover{color:var(--c-primary-d);}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

/* ============ 容器与通用 ============ */
.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%;}
.section{padding:64px 0;}
.section-title{font-size:clamp(23px,3vw,32px);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-sub{color:var(--c-ink-2);font-size:15px;margin-top:10px;max-width:640px;}
.link-more{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--c-primary);font-size:15px;white-space:nowrap;}
.link-more i{transition:transform var(--tr);font-size:12px;}
.link-more:hover i{transform:translateX(3px);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 24px;
  border-radius:var(--r-btn);
  font-weight:600;font-size:15px;line-height:1;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background-color var(--tr),color var(--tr),border-color var(--tr),transform var(--tr),box-shadow var(--tr);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(46,110,142,.22);}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);}
.btn-primary:active{background:var(--c-primary-x);transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-d);border-color:var(--c-primary-d);}
.btn-text{background:none;border:none;color:var(--c-primary);padding:0;min-height:auto;}
.btn-text:hover{color:var(--c-primary-d);}

/* ============ 徽章与标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1;
  background:var(--c-primary-soft);color:var(--c-primary);
}
.badge-accent{background:rgba(201,123,74,.12);color:var(--c-accent);}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-ink-2);font-size:13px;
  transition:border-color var(--tr),color var(--tr),background-color var(--tr);
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:130;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:saturate(140%) blur(6px);
  transition:box-shadow var(--tr);
}
.site-header.scrolled{box-shadow:var(--sh-1);}
.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height var(--tr);}
.site-header.scrolled .container{height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);}
.logo:hover{color:var(--c-ink);}
.logo-mark{width:32px;height:32px;flex:0 0 32px;}
.logo-text{font-size:20px;font-weight:700;letter-spacing:.2px;}
.nav{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;color:var(--c-ink-2);font-size:15px;font-weight:600;
  padding:26px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:18px;height:2px;width:0;
  background:var(--c-primary);border-radius:2px;transition:width 180ms ease;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--c-primary);}
.nav-link.active::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:8px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink);
  cursor:pointer;font-size:17px;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}
.nav-mask{
  position:fixed;inset:0;background:rgba(20,36,44,.4);
  opacity:0;visibility:hidden;pointer-events:none;transition:opacity 200ms ease,visibility 200ms ease;z-index:120;
}

/* ============ 面包屑 ============ */
.crumb-bar{background:var(--c-surface);border-bottom:1px solid var(--c-line);}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-muted);padding:16px 0;overflow:hidden;}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#c4ced3;}
.crumb .current{color:var(--c-ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:52vw;}

/* ============ 文章头 ============ */
.article-head{padding:44px 0 32px;background:var(--c-surface);border-bottom:1px solid var(--c-line);}
.article-head-inner{max-width:880px;}
.article-head h1{
  font-size:clamp(22px,3.2vw,34px);
  line-height:1.32;margin:18px 0 18px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--c-muted);}
.article-meta .meta-date{font-family:var(--font-num);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#cdd7db;}
.article-meta .meta-author{color:var(--c-ink-2);}

/* ============ 正文布局 ============ */
.article-main{padding:48px 0 72px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;align-items:start;}
.article-panel{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:40px 44px;
}
.article-body{max-width:760px;font-size:16px;line-height:1.8;color:var(--c-ink);overflow-wrap:break-word;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;font-size:24px;line-height:1.4;
  margin:32px 0 16px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;width:4px;height:1em;
  background:var(--c-primary);border-radius:2px;
}
.article-body h3{font-size:19px;margin:26px 0 12px;}
.article-body h4{font-size:17px;margin:22px 0 10px;color:var(--c-ink-2);}
.article-body blockquote{
  margin:0 0 20px;padding:16px 20px;
  background:var(--c-primary-soft);border-left:3px solid var(--c-primary);
  border-radius:0 var(--r-img) var(--r-img) 0;color:var(--c-ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:0;}
.article-body ul li{position:relative;padding-left:18px;margin-bottom:10px;line-height:1.9;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.78em;width:6px;height:6px;
  border-radius:50%;background:var(--c-primary);
}
.article-body ol{counter-reset:li;}
.article-body ol li{position:relative;padding-left:28px;margin-bottom:10px;line-height:1.9;counter-increment:li;}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:0;
  width:20px;height:20px;margin-top:.42em;border-radius:6px;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-family:var(--font-num);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.article-body img{border-radius:var(--r-img);margin:6px auto 10px;height:auto;}
.article-body figure{margin:0 0 22px;}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:8px;}
.article-body a{border-bottom:1px solid rgba(46,110,142,.35);}
.article-body a:hover{border-bottom-color:var(--c-primary);}
.article-body hr{border:none;border-top:1px solid var(--c-line);margin:28px 0;}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;background:var(--c-sand);padding:2px 6px;border-radius:6px;color:var(--c-primary-x);
}
.article-body pre{
  background:#F4F6F7;border:1px solid var(--c-line);border-radius:10px;
  padding:16px 18px;overflow-x:auto;margin:0 0 20px;
}
.article-body pre code{background:none;padding:0;font-size:14px;color:var(--c-ink);}
.article-body table{margin:0 0 22px;font-size:15px;}
.article-body thead th{
  background:var(--c-primary-soft);color:var(--c-primary-x);
  font-weight:700;text-align:left;padding:12px 14px;border-bottom:1px solid var(--c-line);
}
.article-body tbody td{padding:12px 14px;border-bottom:1px solid var(--c-line);color:var(--c-ink-2);}
.article-body tbody tr:nth-child(even){background:var(--c-bg);}

/* ============ 正文空态 ============ */
.empty-state{
  text-align:center;padding:56px 20px;
  border:1px dashed var(--c-line);border-radius:var(--r-card);background:var(--c-bg);
}
.empty-state i{font-size:28px;color:var(--c-primary);}
.empty-state h2{font-size:20px;margin:16px 0 8px;}
.empty-state p{color:var(--c-ink-2);font-size:14px;margin-bottom:20px;}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);
}
.side-title{
  display:flex;align-items:center;gap:8px;
  font-size:15px;font-weight:700;margin-bottom:14px;
}
.side-title::before{content:"";width:4px;height:15px;border-radius:2px;background:var(--c-primary);}
.side-list{display:flex;flex-direction:column;gap:2px;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:10px 12px;border-radius:10px;color:var(--c-ink-2);font-size:14px;
  transition:background-color var(--tr),color var(--tr),transform var(--tr);
}
.side-list a i{font-size:11px;color:var(--c-muted);transition:transform var(--tr),color var(--tr);}
.side-list a:hover{background:var(--c-primary-soft);color:var(--c-primary);transform:translateX(2px);}
.side-list a:hover i{color:var(--c-primary);transform:translateX(2px);}
.side-facts{display:flex;flex-direction:column;gap:12px;font-size:14px;}
.side-facts div{display:flex;justify-content:space-between;gap:12px;color:var(--c-ink-2);}
.side-facts span:last-child{color:var(--c-ink);font-weight:600;}
.side-cta{
  background:linear-gradient(0deg,var(--c-primary-soft),var(--c-primary-soft));
  border:1px solid rgba(46,110,142,.2);border-radius:var(--r-card);padding:22px;
}
.side-cta h3{font-size:17px;margin-bottom:8px;}
.side-cta p{font-size:13.5px;color:var(--c-ink-2);margin-bottom:16px;line-height:1.7;}
.side-cta .btn{width:100%;}

/* ============ 标签组 ============ */
.tag-block{margin-top:36px;padding-top:24px;border-top:1px solid var(--c-line);}
.tag-block .tag-label{font-size:13px;color:var(--c-muted);margin-bottom:12px;}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}

/* ============ 继续阅读 ============ */
.read-next{padding:0 0 64px;}
.read-next-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.next-card{
  display:flex;align-items:center;gap:16px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.next-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,110,142,.25);}
.next-card .next-dir{
  flex:0 0 44px;width:44px;height:44px;border-radius:12px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
.next-card .next-body{min-width:0;}
.next-card .next-kicker{font-size:12px;color:var(--c-muted);letter-spacing:.4px;}
.next-card h3{font-size:16px;margin:6px 0 4px;color:var(--c-ink);}
.next-card p{font-size:13.5px;color:var(--c-ink-2);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.next-card.align-end{text-align:right;flex-direction:row-reverse;}

/* ============ 相关推荐 ============ */
.related{padding:0 0 72px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,110,142,.25);}
.card figure{margin:0;overflow:hidden;}
.card figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 240ms ease;}
.card:hover figure img{transform:scale(1.03);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{
  font-size:18px;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body h3 a{color:var(--c-ink);}
.card-body h3 a:hover{color:var(--c-primary);}
.card-body p{
  font-size:14px;color:var(--c-ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px;}
.card-foot .date{font-family:var(--font-num);font-size:12.5px;color:var(--c-muted);}
.card-foot .go{font-size:13px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.card:hover .card-foot .go i{transform:translateX(3px);}
.card-foot .go i{transition:transform var(--tr);font-size:11px;}

/* ============ 底部 CTA ============ */
.cta-band{
  background:var(--c-sand);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
  padding:64px 0;
}
.cta-inner{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:40px;align-items:center;
}
.cta-inner h2{font-size:clamp(23px,3vw,32px);margin-bottom:14px;}
.cta-inner p{color:var(--c-ink-2);font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.cta-visual{
  border-radius:var(--r-img);overflow:hidden;border:1px solid rgba(20,36,44,.08);
  box-shadow:var(--sh-2);
}
.cta-visual img{width:100%;aspect-ratio:3/2;object-fit:cover;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:#C6D1D6;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.site-footer .logo-text{color:#fff;}
.site-footer .logo:hover .logo-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.8;color:#9FAEB5;margin-top:16px;max-width:300px;}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;position:relative;padding-left:12px;}
.footer-title::before{content:"";position:absolute;left:0;top:.4em;width:3px;height:14px;border-radius:2px;background:var(--c-accent);}
.footer-list{display:flex;flex-direction:column;gap:10px;}
.footer-list a{color:#AEBCC2;font-size:14px;transition:color var(--tr),transform var(--tr);display:inline-block;}
.footer-list a:hover{color:#fff;transform:translateX(3px);}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14px;color:#AEBCC2;}
.footer-contact div{display:flex;align-items:flex-start;gap:10px;}
.footer-contact i{color:var(--c-accent);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8D9DA4;
}
.footer-bottom span:last-child{font-family:var(--font-num);letter-spacing:.4px;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .nav{
    position:fixed;top:0;right:0;height:100vh;width:84vw;max-width:380px;
    background:var(--c-surface);z-index:125;
    flex-direction:column;align-items:stretch;gap:0;
    padding:88px 24px 28px;
    transform:translateX(102%);
    transition:transform 220ms ease;
    box-shadow:-10px 0 34px rgba(20,36,44,.16);
    overflow-y:auto;
  }
  .nav-link{padding:15px 0;font-size:16px;border-bottom:1px solid var(--c-line);}
  .nav-link::after{display:none;}
  .nav-link.active{color:var(--c-primary);}
  .site-header.nav-open .nav{transform:translateX(0);}
  .site-header.nav-open .nav-mask{opacity:1;visibility:visible;pointer-events:auto;}
  .nav-actions{flex-direction:column;align-items:stretch;gap:12px;margin:26px 0 0;width:100%;}
  .nav-actions .btn{width:100%;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .article-side{position:static;}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .article-main{padding:32px 0 48px;}
  .article-head{padding:28px 0 24px;}
  .article-panel{padding:24px 18px;border-radius:14px;}
  .article-body h2{font-size:21px;margin:28px 0 14px;}
  .article-body h3{font-size:18px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .crumb .current{max-width:46vw;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .read-next-grid{grid-template-columns:minmax(0,1fr);}
  .next-card.align-end{flex-direction:row;text-align:left;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
}
@media (max-width:480px){
  .logo-text{font-size:17px;}
  .logo-mark{width:28px;height:28px;flex:0 0 28px;}
  .article-head h1{font-size:23px;}
  .article-meta{gap:8px;font-size:12.5px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#2E6E8E;
  --c-primary-d:#23586F;
  --c-primary-x:#1A4356;
  --c-primary-soft:#E4EEF3;
  --c-accent:#C97B4A;
  --c-bg:#FBFAF8;
  --c-surface:#FFFFFF;
  --c-sand:#F3ECE3;
  --c-ink:#14242C;
  --c-ink-2:#4A5C64;
  --c-muted:#7B8A91;
  --c-line:#E4E8EB;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-num:Inter,"SF Pro Display",system-ui,sans-serif;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(20,36,44,.06);
  --sh-2:0 10px 30px rgba(20,36,44,.10);
  --sh-3:0 16px 40px rgba(20,36,44,.14);
}

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

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

body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4,h5,h6{
  margin:0 0 16px;
  font-family:var(--font-sans);
  font-weight:700;
  color:var(--c-ink);
  line-height:1.3;
  letter-spacing:.2px;
}

h1{font-size:clamp(28px,4vw,44px);line-height:1.22;}
h2{font-size:clamp(23px,3vw,32px);line-height:1.3;}
h3{font-size:20px;line-height:1.45;}
h4{font-size:17px;line-height:1.5;}

p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}

a{
  color:var(--c-primary);
  text-decoration:none;
  transition:color .18s ease,background-color .18s ease,border-color .18s ease;
}
a:hover,a:focus{color:var(--c-primary-d);}

img{max-width:100%;display:block;border-style:none;}
ul,ol{margin:0 0 16px;padding:0;list-style:none;}

button,input,select,textarea{
  font-family:inherit;
  font-size:inherit;
  color:inherit;
  margin:0;
}
button{background:none;border:0;}

::selection{background:var(--c-primary-soft);color:var(--c-primary-x);}

:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
}

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

.section{padding:88px 0;}
.section-sm{padding:56px 0;}
.section-tint{background:var(--c-surface);}
.section-sand{background:var(--c-sand);}

.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
  flex-wrap:wrap;
}
.section-title{position:relative;padding-left:14px;margin-bottom:10px;}
.section-title::before{
  content:"";
  position:absolute;
  left:0;
  top:6px;
  bottom:6px;
  width:4px;
  border-radius:2px;
  background:var(--c-primary);
}
.section-lead{
  color:var(--c-ink-2);
  font-size:15px;
  max-width:660px;
  margin:0;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease;
}
.site-header.scrolled{box-shadow:var(--sh-1);}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  transition:height .2s ease;
}
.site-header.scrolled .container{height:64px;}

.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--c-ink);
  font-weight:700;
}
.logo:hover{color:var(--c-ink);}
.logo-mark{width:34px;height:34px;flex:0 0 34px;}
.logo-text{
  font-size:20px;
  font-weight:700;
  letter-spacing:.4px;
  white-space:nowrap;
}

.nav{
  display:flex;
  align-items:center;
  gap:2px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 14px;
  font-size:15px;
  color:var(--c-ink-2);
  border-radius:8px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:6px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s ease;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link.active{color:var(--c-primary);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}

.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:16px;
}

.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  border:1px solid var(--c-line);
  color:var(--c-ink);
  font-size:18px;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}

.nav-mask{
  position:fixed;
  inset:0;
  background:rgba(20,36,44,.4);
  opacity:0;
  visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease;
  z-index:80;
}
body.nav-open .nav-mask{opacity:1;visibility:visible;}
body.nav-open{overflow:hidden;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{
  background:var(--c-primary);
  color:#fff;
  border-color:var(--c-primary);
}
.btn-primary:hover{
  background:var(--c-primary-d);
  border-color:var(--c-primary-d);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-1);
}
.btn-primary:active{background:var(--c-primary-x);border-color:var(--c-primary-x);transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--c-primary);
  border-color:var(--c-primary);
}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-d);}
.btn-light{
  background:var(--c-surface);
  color:var(--c-primary);
  border-color:var(--c-line);
}
.btn-light:hover{border-color:var(--c-primary);color:var(--c-primary-d);transform:translateY(-1px);}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  font-weight:600;
  color:var(--c-primary);
}
.btn-link i{transition:transform .18s ease;}
.btn-link:hover i{transform:translateX(3px);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  letter-spacing:.3px;
}
.badge-cat{background:var(--c-primary-soft);color:var(--c-primary);}
.badge-hot{background:rgba(201,123,74,.12);color:var(--c-accent);}
.pill-row{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  color:var(--c-muted);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:var(--c-line);}

/* ---------- 全宽 Hero ---------- */
.cat-hero{
  position:relative;
  padding:104px 0 96px;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center right;
  background-repeat:no-repeat;
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(251,250,248,.96) 0%,rgba(251,250,248,.90) 42%,rgba(228,238,243,.72) 100%);
}
.cat-hero .container{position:relative;z-index:2;}
.hero-inner{max-width:760px;}
.cat-hero h1{margin-bottom:18px;}
.cat-hero .hero-desc{
  font-size:17px;
  line-height:1.8;
  color:var(--c-ink-2);
  max-width:640px;
  margin-bottom:28px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:center;
  margin-bottom:30px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:12px 28px;
  padding-top:24px;
  border-top:1px solid rgba(46,110,142,.16);
}
.hero-point{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--c-ink-2);
}
.hero-point i{color:var(--c-primary);font-size:15px;}

/* ---------- 快速定位条 ---------- */
.quick-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.quick-item{
  padding:28px 24px;
  border-right:1px solid var(--c-line);
}
.quick-item:last-child{border-right:0;}
.quick-item i{
  font-size:20px;
  color:var(--c-primary);
  margin-bottom:12px;
  display:block;
}
.quick-item h3{
  font-size:16px;
  margin-bottom:6px;
}
.quick-item p{
  font-size:13.5px;
  line-height:1.7;
  color:var(--c-ink-2);
  margin:0;
}

/* ---------- 阶梯图文 ---------- */
.zig{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
}
.zig + .zig{margin-top:88px;}
.zig-media{position:relative;}
.zig-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-img);
  box-shadow:var(--sh-2);
}
.zig-media .zig-num{
  position:absolute;
  left:-10px;
  top:-14px;
  font-family:var(--font-num);
  font-size:26px;
  font-weight:700;
  color:var(--c-accent);
  background:var(--c-bg);
  padding:4px 12px;
  border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
}
.zig.reverse .zig-media{order:2;}
.zig.reverse .zig-body{order:1;}
.zig-body h3{
  font-size:clamp(20px,2.2vw,24px);
  margin-bottom:14px;
}
.zig-body p{color:var(--c-ink-2);font-size:15.5px;line-height:1.85;}
.dot-list{margin-top:18px;}
.dot-list li{
  position:relative;
  padding-left:20px;
  margin-bottom:10px;
  font-size:15px;
  line-height:1.9;
  color:var(--c-ink-2);
}
.dot-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:12px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--c-primary);
}
.dot-list li strong{color:var(--c-ink);font-weight:600;}

/* ---------- 编号步骤 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.step-card{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:30px 24px 26px;
  box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.step-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:rgba(46,110,142,.25);
}
.step-num{
  font-family:var(--font-num);
  font-size:32px;
  font-weight:700;
  color:var(--c-accent);
  line-height:1;
  display:block;
  margin-bottom:16px;
}
.step-card h3{font-size:19px;margin-bottom:10px;}
.step-card p{font-size:14.5px;line-height:1.8;color:var(--c-ink-2);margin:0;}
.step-line{
  height:2px;
  width:44px;
  background:var(--c-primary-soft);
  border-radius:2px;
  margin:18px 0 0;
}

/* ---------- 保障条 ---------- */
.assure{
  background:var(--c-primary-soft);
  border-radius:var(--r-card);
  padding:34px 28px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.assure-item{
  display:flex;
  align-items:flex-start;
  gap:12px;
}
.assure-item i{
  font-size:19px;
  color:var(--c-primary);
  margin-top:3px;
}
.assure-item h4{font-size:15.5px;margin-bottom:4px;}
.assure-item p{font-size:13px;line-height:1.6;color:var(--c-ink-2);margin:0;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:14px;
  overflow:hidden;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-item + .faq-item{margin-top:14px;}
.faq-item:hover{border-color:rgba(46,110,142,.28);box-shadow:var(--sh-1);}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  min-height:56px;
  padding:16px 22px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--c-ink);
  border-left:3px solid var(--c-primary);
  cursor:pointer;
}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{
  flex:0 0 auto;
  width:22px;
  height:22px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--c-primary);
  font-size:18px;
  font-weight:600;
}
.faq-icon::before{content:"+";}
.faq-item.open .faq-icon::before{content:"−";}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .2s ease;
}
.faq-item.open .faq-a{max-height:460px;}
.faq-a-inner{
  padding:0 22px 22px 25px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-ink-2);
}

/* ---------- 底部转化区 ---------- */
.cta-band{
  position:relative;
  background:var(--c-sand);
  overflow:hidden;
}
.cta-band .container{
  position:relative;
  z-index:2;
  padding-top:76px;
  padding-bottom:76px;
}
.cta-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}
.cta-copy h2{margin-bottom:14px;}
.cta-copy p{
  font-size:15.5px;
  color:var(--c-ink-2);
  max-width:560px;
  margin-bottom:26px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  align-items:center;
}
.cta-media{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  box-shadow:var(--sh-2);
}
.cta-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.cta-media .cta-tip{
  position:absolute;
  left:16px;
  right:16px;
  bottom:16px;
  background:rgba(255,255,255,.94);
  border-radius:12px;
  padding:12px 16px;
  font-size:13px;
  color:var(--c-ink-2);
  display:flex;
  align-items:center;
  gap:10px;
  box-shadow:var(--sh-1);
}
.cta-media .cta-tip i{color:var(--c-primary);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);
  color:#C9D6DB;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.10);
}
.site-footer .logo{color:#fff;}
.site-footer .logo:hover{color:#fff;}
.footer-brand p{
  font-size:13.5px;
  line-height:1.8;
  color:#9DB0B7;
  margin:16px 0 0;
  max-width:300px;
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-list{display:flex;flex-direction:column;gap:10px;}
.footer-list a{
  font-size:13.5px;
  color:#9DB0B7;
  transition:color .18s ease,transform .18s ease;
  display:inline-block;
}
.footer-list a:hover{color:#8FC0D6;transform:translateX(3px);}
.footer-contact{display:flex;flex-direction:column;gap:12px;}
.footer-contact div{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13.5px;
  color:#9DB0B7;
}
.footer-contact i{color:#8FC0D6;margin-top:4px;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 0 26px;
  font-size:12.5px;
  color:#7E9199;
  flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .zig{gap:48px;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .cat-hero{padding:80px 0 72px;}
  .quick-grid{grid-template-columns:repeat(2,1fr);}
  .quick-item:nth-child(2){border-right:0;}
  .quick-item:nth-child(1),.quick-item:nth-child(2){border-bottom:1px solid var(--c-line);}
  .steps{grid-template-columns:1fr 1fr;}
  .assure{grid-template-columns:repeat(2,1fr);}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:992px){
  .nav-toggle{display:inline-flex;}
  .nav{
    position:fixed;
    top:0;
    right:0;
    width:84vw;
    max-width:360px;
    height:100vh;
    background:var(--c-surface);
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:84px 20px 110px;
    transform:translateX(105%);
    transition:transform .22s ease;
    box-shadow:var(--sh-2);
    overflow-y:auto;
    z-index:85;
  }
  body.nav-open .nav{transform:translateX(0);}
  .nav-link{
    padding:14px 12px;
    font-size:16px;
    border-bottom:1px solid var(--c-line);
    border-radius:0;
  }
  .nav-link::after{display:none;}
  .nav-link.active{
    background:var(--c-primary-soft);
    color:var(--c-primary);
    border-radius:10px;
    border-bottom-color:transparent;
  }
  .nav-actions{
    flex-direction:column;
    margin:24px 0 0;
    gap:12px;
  }
  .nav-actions .btn{width:100%;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .site-header .container{height:64px;}
  .logo-text{font-size:17px;}
  .cat-hero{padding:56px 0 52px;}
  .cat-hero .hero-desc{font-size:15.5px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .hero-points{gap:10px 20px;padding-top:20px;}
  .zig{grid-template-columns:1fr;gap:28px;}
  .zig + .zig{margin-top:56px;}
  .zig.reverse .zig-media{order:0;}
  .zig.reverse .zig-body{order:0;}
  .zig-media .zig-num{left:12px;top:12px;font-size:22px;}
  .quick-grid{grid-template-columns:1fr;}
  .quick-item{border-right:0;border-bottom:1px solid var(--c-line);}
  .quick-item:last-child{border-bottom:0;}
  .steps{grid-template-columns:1fr;}
  .assure{grid-template-columns:1fr;padding:26px 20px;gap:18px;}
  .faq-q{font-size:16px;padding:14px 16px;}
  .faq-a-inner{padding:0 16px 18px 19px;}
  .cta-band .container{padding-top:52px;padding-bottom:52px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:480px){
  h1{font-size:26px;}
  .cat-hero .hero-desc{font-size:15px;}
  .logo-text{font-size:15.5px;}
  .logo-mark{width:28px;height:28px;flex:0 0 28px;}
  .badge{height:24px;font-size:11.5px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#2E6E8E;
  --c-primary-d:#23586F;
  --c-primary-x:#1A4356;
  --c-primary-soft:#E4EEF3;
  --c-accent:#C97B4A;
  --c-bg:#FBFAF8;
  --c-surface:#FFFFFF;
  --c-sand:#F3ECE3;
  --c-ink:#14242C;
  --c-ink-2:#4A5C64;
  --c-muted:#7B8A91;
  --c-line:#E4E8EB;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(20,36,44,.06);
  --sh-2:0 10px 30px rgba(20,36,44,.10);
  --sh-3:0 16px 40px rgba(20,36,44,.14);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-num:Inter,"SF Pro Display",system-ui,tabular-nums;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s ease}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;
}
button{font-family:inherit}
h1{font-size:clamp(28px,4vw,44px);line-height:1.22;font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(23px,3vw,32px);line-height:1.3;font-weight:700}
h3{font-size:20px;line-height:1.45;font-weight:700}
p{color:var(--c-ink-2)}
.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%}
.section{padding:88px 0}
.section-tight{padding:64px 0}

/* ---------- Foundation 覆盖 ---------- */
.button,.button.primary,.button.secondary{
  background:var(--c-primary);color:#fff;border-radius:var(--r-btn);
  font-family:var(--font-sans);font-weight:600;padding:12px 24px;margin:0;
  box-shadow:none;border:0;transition:all .18s ease;
}
.button:hover,.button.primary:hover{background:var(--c-primary-d);color:#fff}
a{color:var(--c-ink)}
a:hover{color:var(--c-primary)}
.callout{background:var(--c-primary-soft);border:0;border-left:3px solid var(--c-primary);border-radius:0 var(--r-btn) var(--r-btn) 0;padding:16px 20px}
.badge{background:var(--c-primary-soft);color:var(--c-primary);border-radius:var(--r-pill);font-size:12px;font-weight:600}
table{border-collapse:collapse;width:100%}

/* ---------- 顶部微条 ---------- */
.topbar{background:var(--c-primary-soft);height:36px;display:flex;align-items:center;font-size:13px;color:var(--c-primary-x)}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:16px}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:18px}
.topbar i{color:var(--c-primary);margin-right:6px}
.topbar a:hover{color:var(--c-primary-d);text-decoration:underline}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(6px);
  border-bottom:1px solid var(--c-line);transition:height .2s ease,box-shadow .2s ease;
}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:72px}
.site-header.is-scrolled .container{height:64px}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:34px;height:34px;flex-shrink:0}
.logo-text{font-size:20px;font-weight:700;color:var(--c-ink);letter-spacing:.2px;white-space:nowrap}
.nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;padding:10px 14px;font-size:15px;color:var(--c-ink-2);
  font-weight:500;border-radius:8px;transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:center;
  transition:transform .18s ease;
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--c-primary);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1.5px solid transparent;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px)}
.btn-primary:active{background:var(--c-primary-x);transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-d)}
.btn-soft{background:var(--c-primary-soft);color:var(--c-primary-d)}
.btn-soft:hover{background:#d6e6ee;color:var(--c-primary-x)}
.btn-text{color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:8px;padding:8px 0}
.btn-text i{transition:transform .18s ease;font-size:13px}
.btn-text:hover i{transform:translateX(3px)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;color:var(--c-ink);font-size:18px;cursor:pointer;align-items:center;justify-content:center;
}
.nav-mask{
  position:fixed;inset:0;background:rgba(20,36,44,.4);opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease;z-index:70;
}
.nav-mask.show{opacity:1;visibility:visible}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:20px 0 0;font-size:13px;color:var(--c-muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.breadcrumb a{color:var(--c-muted)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb span.sep{color:#C7D0D5}

/* ---------- Hero ---------- */
.hero-cat{
  position:relative;overflow:hidden;background:var(--c-primary-soft);
  border-radius:var(--r-card);margin-top:16px;
  padding:52px 44px;
}
.hero-cat::before{
  content:"";position:absolute;right:-60px;top:-80px;width:420px;height:420px;
  background:radial-gradient(circle at 30% 30%, rgba(46,110,142,.10), rgba(46,110,142,0) 62%);
  pointer-events:none;
}
.hero-cat .hero-inner{position:relative;max-width:760px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--c-primary);
  font-size:12px;font-weight:600;border-radius:var(--r-pill);padding:6px 14px;margin-bottom:18px;
}
.hero-cat h1{color:var(--c-ink);margin-bottom:16px}
.hero-cat h1 em{font-style:normal;color:var(--c-primary)}
.hero-lead{font-size:16px;color:var(--c-ink-2);max-width:640px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.hero-points{display:flex;flex-wrap:wrap;gap:26px;margin-top:30px}
.hero-points div{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-ink-2)}
.hero-points i{color:var(--c-primary)}

/* ---------- 筛选条 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding:18px 0 24px;border-bottom:1px solid var(--c-line);margin-bottom:32px;
}
.filter-label{font-size:13px;color:var(--c-muted);margin-right:4px}
.chip{
  display:inline-flex;align-items:center;min-height:36px;padding:7px 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);color:var(--c-ink-2);
  font-size:14px;cursor:pointer;transition:all .18s ease;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary)}
.chip.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}
.chip-count{font-family:var(--font-num);font-size:12px;opacity:.7;margin-left:6px}

/* ---------- 主区布局 ---------- */
.cat-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}
.cat-main{min-width:0}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,110,142,.25)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-sand)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-media .badge{
  position:absolute;left:12px;top:12px;background:rgba(255,255,255,.92);
  color:var(--c-primary);padding:5px 12px;font-size:12px;
}
.card-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{
  font-size:18px;line-height:1.45;font-weight:700;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc{
  font-size:14px;line-height:1.7;color:var(--c-ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:12px;border-top:1px dashed var(--c-line)}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;background:var(--c-primary-soft);color:var(--c-primary);font-weight:500;
}
.tag-accent{background:rgba(201,123,74,.12);color:var(--c-accent)}
.card-foot{padding:0 20px 20px;display:flex;align-items:center;justify-content:space-between}
.card-meta{font-size:12px;color:var(--c-muted);font-family:var(--font-num)}

/* ---------- 分页 ---------- */
.pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:44px;flex-wrap:wrap}
.page-item{
  min-width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);
  font-size:14px;font-family:var(--font-num);transition:all .18s ease;
}
.page-item:hover{border-color:var(--c-primary);color:var(--c-primary)}
.page-item.current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}
.page-item.disabled{color:#B9C3C8;pointer-events:none;background:#FAFAF9}
.page-wide{padding:0 18px;font-family:var(--font-sans);font-size:14px}
.page-info{margin-left:8px;font-size:13px;color:var(--c-muted)}

/* ---------- 侧栏推荐位 ---------- */
.side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1)}
.side-title{font-size:16px;font-weight:700;color:var(--c-ink);display:flex;align-items:center;gap:10px;margin-bottom:16px}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--c-primary)}
.side-list{display:flex;flex-direction:column;gap:16px}
.side-item{display:flex;gap:12px;align-items:flex-start}
.side-item img{width:72px;height:54px;object-fit:cover;border-radius:10px;flex-shrink:0}
.side-item h3{font-size:14px;font-weight:600;line-height:1.5;color:var(--c-ink);margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.side-item span{font-size:12px;color:var(--c-muted);font-family:var(--font-num)}
.side-item:hover h3{color:var(--c-primary)}
.side-cta{background:var(--c-primary-soft);border:0}
.side-cta p{font-size:14px;color:var(--c-primary-x);margin-bottom:16px}
.side-cta .btn{width:100%}

/* ---------- 信任条 ---------- */
.trust{background:var(--c-sand)}
.trust-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.trust-item{text-align:left;padding:0 8px}
.trust-num{font-family:var(--font-num);font-size:34px;font-weight:700;color:var(--c-primary);line-height:1.2}
.trust-num small{font-size:16px;margin-left:2px;font-weight:600}
.trust-label{font-size:14px;color:var(--c-ink-2);margin-top:8px}
.trust-grid .trust-item+.trust-item{border-left:1px solid rgba(20,36,44,.08);padding-left:28px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-list{display:flex;flex-direction:column;gap:14px;margin-top:36px}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.faq-item summary{
  list-style:none;cursor:pointer;padding:16px 22px 16px 22px;min-height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:17px;font-weight:600;color:var(--c-ink);position:relative;
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-primary);transform:scaleY(0);transition:transform .2s ease}
.faq-item[open] summary::before{transform:scaleY(1)}
.faq-item summary:hover{color:var(--c-primary)}
.faq-icon{flex-shrink:0;width:26px;height:26px;border-radius:50%;background:var(--c-primary-soft);color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;transition:all .2s ease}
.faq-item[open] .faq-icon{background:var(--c-primary);color:#fff}
.faq-item[open] .faq-icon span::after{content:""}
.faq-body{padding:0 22px 20px 22px;font-size:15px;line-height:1.8;color:var(--c-ink-2)}
.faq-body p+p{margin-top:12px}

/* ---------- 转化区 ---------- */
.cta-band{position:relative;background:var(--c-primary-soft);overflow:hidden}
.cta-band::after{
  content:"";position:absolute;left:-100px;bottom:-140px;width:460px;height:460px;
  background:radial-gradient(circle at 40% 40%, rgba(46,110,142,.12), rgba(46,110,142,0) 65%);
  pointer-events:none;
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.cta-inner h2{margin-bottom:14px}
.cta-inner p{font-size:16px;color:var(--c-ink-2);margin-bottom:26px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.cta-figure{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-2);aspect-ratio:3/2}
.cta-figure img{width:100%;height:100%;object-fit:cover}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#C6D2D8;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.site-footer .logo-text{color:#fff}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#9FB0B8;max-width:300px}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-list{display:flex;flex-direction:column;gap:12px}
.footer-list a{font-size:14px;color:#9FB0B8;transition:color .18s ease,transform .18s ease}
.footer-list a:hover{color:#8FC2DA;transform:translateX(3px)}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14px;color:#9FB0B8}
.footer-contact div{display:flex;align-items:center;gap:10px}
.footer-contact i{color:#8FC2DA}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:22px 0;display:flex;
  justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8B9BA3;
}
.footer-bottom span:last-child{font-family:var(--font-num)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cat-layout{grid-template-columns:minmax(0,1fr) 280px;gap:24px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .section-tight{padding:48px 0}
  .nav-toggle{display:inline-flex}
  .nav{
    position:fixed;top:0;right:0;height:100vh;width:84vw;max-width:360px;
    background:#fff;flex-direction:column;align-items:stretch;gap:4px;
    padding:88px 22px 28px;transform:translateX(102%);
    transition:transform .22s ease;z-index:80;box-shadow:var(--sh-2);overflow-y:auto;
  }
  .nav.open{transform:translateX(0)}
  .nav-link{padding:14px 12px;font-size:16px;border-bottom:1px solid var(--c-line);border-radius:0}
  .nav-link::after{display:none}
  .nav-link.active{background:var(--c-primary-soft);border-radius:8px}
  .nav-actions{flex-direction:column;align-items:stretch;gap:10px;margin:22px 0 0}
  .nav-actions .btn{width:100%}
  .cat-layout{grid-template-columns:minmax(0,1fr)}
  .side{position:static}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .hero-cat{padding:40px 28px}
  .trust-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .trust-grid .trust-item+.trust-item{border-left:0;padding-left:8px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .topbar{display:none}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .hero-cat{padding:32px 20px;border-radius:12px}
  .hero-actions .btn{width:100%}
  .hero-points{gap:14px}
  .section{padding:48px 0}
  .side-card{padding:18px}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-item summary{font-size:16px;padding:14px 16px 14px 18px}
  .faq-body{padding:0 16px 18px 18px}
}
@media (max-width:480px){
  .logo-text{font-size:17px}
  .logo-mark{width:30px;height:30px}
  .trust-grid{grid-template-columns:minmax(0,1fr)}
  .trust-item{padding:0}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .page-info{display:none}
}

/* roulang page: category4 */
:root{
  --c-primary:#2E6E8E;
  --c-primary-d:#23586F;
  --c-primary-x:#1A4356;
  --c-primary-soft:#E4EEF3;
  --c-accent:#C97B4A;
  --c-bg:#FBFAF8;
  --c-surface:#FFFFFF;
  --c-sand:#F3ECE3;
  --c-ink:#14242C;
  --c-ink-2:#4A5C64;
  --c-muted:#7B8A91;
  --c-line:#E4E8EB;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:Inter,"SF Pro Display",system-ui,"PingFang SC",sans-serif;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(20,36,44,.06);
  --sh-2:0 10px 30px rgba(20,36,44,.10);
  --sh-3:0 16px 40px rgba(20,36,44,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary-d)}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:.2px}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .18s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:72px;transition:height .18s ease}
.site-header.is-scrolled .container{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink)}
.logo:hover{color:var(--c-ink)}
.logo-mark{width:34px;height:34px;flex:0 0 34px}
.logo-text{font-size:20px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 12px;
  font-size:15px;color:var(--c-ink-2);transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:center;transition:transform .18s ease;
}
.nav-link:hover{color:var(--c-primary)}
.nav-link.active{color:var(--c-primary);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;border:1.5px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-d);border-color:var(--c-primary-d);color:#fff;transform:translateY(-1px)}
.btn-primary:active{background:var(--c-primary-x);border-color:var(--c-primary-x);transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-d);border-color:var(--c-primary-d)}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;min-height:44px;
  color:var(--c-primary);font-weight:600;font-size:15px;
}
.btn-text i{transition:transform .18s ease}
.btn-text:hover i{transform:translateX(3px)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;
  border:1px solid var(--c-line);border-radius:var(--r-btn);background:var(--c-surface);
  color:var(--c-ink);font-size:18px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
.nav-mask{
  position:fixed;inset:0;background:rgba(20,36,44,.4);opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease;z-index:80;
}
.nav-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;background:var(--c-surface);
  transform:translateX(100%);transition:transform .22s ease;z-index:90;
  display:flex;flex-direction:column;padding:18px 20px 20px;box-shadow:var(--sh-3);
}
.nav-drawer.is-open{transform:translateX(0)}
.nav-drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line)}
.nav-drawer-close{width:44px;height:44px;border:1px solid var(--c-line);background:transparent;border-radius:var(--r-btn);cursor:pointer;color:var(--c-ink);font-size:16px}
.nav-drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary)}
.nav-drawer-links{display:flex;flex-direction:column;padding:14px 0;flex:1 1 auto;overflow-y:auto}
.nav-drawer-links a{
  display:flex;align-items:center;min-height:48px;padding:0 4px;font-size:16px;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);
}
.nav-drawer-links a.active{color:var(--c-primary);font-weight:600}
.drawer-cta{width:100%}
body.no-scroll{overflow:hidden}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--soft{background:var(--c-primary-soft)}
.section--sand{background:var(--c-sand)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;margin-bottom:14px;
  border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary);
  font-size:12px;font-weight:600;letter-spacing:.4px;
}
.kicker--accent{background:rgba(201,123,74,.10);color:var(--c-accent)}
.section-title{font-size:clamp(23px,3vw,32px);line-height:1.3;margin-bottom:14px}
.section-title .bar{
  display:inline-block;width:4px;height:22px;border-radius:2px;background:var(--c-primary);
  margin-right:12px;vertical-align:-3px;
}
.section-sub{font-size:16px;color:var(--c-ink-2);line-height:1.8}
.rule{height:1px;background:var(--c-line);border:0;margin:0}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:18px 0 0;font-size:13px;color:var(--c-muted)}
.breadcrumb a{color:var(--c-muted)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb span{margin:0 8px;color:var(--c-line)}

/* ---------- hero ---------- */
.page-hero{padding:36px 0 72px;position:relative;overflow:hidden;background:var(--c-bg)}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-60px;width:520px;height:420px;
  background:radial-gradient(closest-side,rgba(46,110,142,.09),rgba(46,110,142,0));
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;position:relative;z-index:1}
.hero-copy h1{font-size:clamp(28px,4vw,44px);line-height:1.22;margin:14px 0 18px}
.hero-lead{font-size:17px;color:var(--c-ink-2);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:28px}
.hero-points{display:flex;flex-wrap:wrap;gap:20px}
.hero-points li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--c-ink-2)}
.hero-points i{color:var(--c-primary)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-2);
}
.hero-note{
  position:absolute;right:-14px;bottom:-22px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-2);padding:16px 20px;min-width:196px;
}
.hero-note .num{font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--c-accent);line-height:1.2}
.hero-note .tip{font-size:13px;color:var(--c-ink-2)}

/* ---------- 数据条 ---------- */
.stats{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:32px 24px;text-align:center;border-left:1px solid var(--c-line)}
.stat:first-child{border-left:0}
.stat .num{font-family:var(--font-num);font-size:clamp(26px,3vw,34px);font-weight:700;color:var(--c-primary);line-height:1.2}
.stat .num em{font-style:normal;font-size:16px;margin-left:2px}
.stat .label{margin-top:6px;font-size:14px;color:var(--c-ink-2)}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:36px;max-width:860px}
.timeline::before{content:"";position:absolute;left:5px;top:12px;bottom:12px;width:2px;background:rgba(46,110,142,.32)}
.tl-item{position:relative;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-36px;top:8px;width:12px;height:12px;border-radius:50%;
  background:var(--c-primary);box-shadow:0 0 0 4px var(--c-primary-soft);
}
.tl-idx{font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--c-accent);letter-spacing:1px}
.tl-title{font-size:19px;line-height:1.45;margin:4px 0 6px}
.tl-desc{font-size:15px;color:var(--c-ink-2);max-width:620px}
.tl-meta{display:inline-flex;align-items:center;gap:8px;margin-top:10px;font-size:13px;color:var(--c-muted)}
.tl-meta i{color:var(--c-primary)}

/* ---------- 对比清单 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-col{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px;transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.compare-col:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:rgba(46,110,142,.25)}
.compare-col--accent{background:var(--c-surface);border-color:rgba(201,123,74,.3)}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}
.compare-head h3{font-size:20px}
.compare-note{font-size:14px;color:var(--c-ink-2);margin-bottom:18px}
.compare-list li{
  display:flex;gap:10px;align-items:flex-start;padding:10px 0;font-size:15px;color:var(--c-ink-2);
  border-top:1px solid var(--c-line);line-height:1.7;
}
.compare-list li:first-child{border-top:0;padding-top:0}
.compare-list i{color:var(--c-primary);margin-top:6px}
.compare-col--accent .compare-list i{color:var(--c-accent)}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;background:var(--c-primary-soft);color:var(--c-primary);
}
.tag--accent{background:rgba(201,123,74,.10);color:var(--c-accent)}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 24px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.faq-q{
  position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px 16px 23px;min-height:56px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--c-ink);
}
.faq-q::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-primary)}
.faq-ico{position:relative;flex:0 0 18px;width:18px;height:18px}
.faq-ico .bar{position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.faq-ico .bar-h{left:0;top:8px;width:18px;height:2px}
.faq-ico .bar-v{left:8px;top:0;width:2px;height:18px}
.faq-item.open .bar-v{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-item.open .faq-a{max-height:420px}
.faq-a p{padding:0 20px 18px 23px;margin:0;font-size:15px;line-height:1.8;color:var(--c-ink-2)}

/* ---------- 联系表单 ---------- */
.contact-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:start}
.form-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:28px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--c-ink-2);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;font-size:15px;font-family:inherit;color:var(--c-ink);
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:10px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:auto;min-height:124px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-soft);
}
.field input::placeholder,.field textarea::placeholder{color:var(--c-muted)}
.form-hint{font-size:13px;color:var(--c-muted);margin:12px 0 0}
.form-hint.is-error{color:var(--c-accent)}
.form-alert{
  display:flex;gap:10px;align-items:flex-start;margin-bottom:20px;padding:14px 16px;border-radius:10px;
  background:var(--c-primary-soft);color:var(--c-primary-x);font-size:14px;line-height:1.7;
}
.form-alert i{margin-top:4px;color:var(--c-primary)}
.contact-side{background:var(--c-sand);border-radius:var(--r-card);padding:26px}
.contact-side h3{font-size:19px;margin-bottom:14px}
.contact-side img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);margin-bottom:18px}
.contact-list li{display:flex;gap:10px;align-items:flex-start;padding:10px 0;border-top:1px solid rgba(20,36,44,.08);font-size:14px;color:var(--c-ink-2)}
.contact-list li:first-child{border-top:0;padding-top:0}
.contact-list i{color:var(--c-primary);margin-top:5px}

/* ---------- CTA ---------- */
.cta-band{background:var(--c-sand);padding:72px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(23px,3vw,32px);line-height:1.3;margin-bottom:10px}
.cta-inner p{color:var(--c-ink-2);max-width:560px;margin:0}
.cta-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:#C6D2D8;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:32px;padding-bottom:40px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#9FB0B8;max-width:300px}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-list{display:flex;flex-direction:column;gap:6px}
.footer-list a,.footer-contact span{font-size:14px;color:#9FB0B8;display:inline-block;transition:color .18s ease,transform .18s ease}
.footer-list a:hover{color:#8FC0D6;transform:translateX(3px)}
.footer-contact{display:flex;flex-direction:column;gap:12px}
.footer-contact div{display:flex;align-items:flex-start;gap:10px}
.footer-contact i{color:#8FC0D6;margin-top:5px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:20px 0;display:flex;
  align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8B9CA4;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .page-hero{padding:28px 0 56px}
  .hero-note{right:12px;bottom:-18px}
  .compare-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr;gap:28px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{border-left:0;border-top:1px solid var(--c-line)}
  .stat:nth-child(odd){border-right:1px solid var(--c-line)}
  .stat:nth-child(1),.stat:nth-child(2){border-top:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:992px){
  .nav{display:none}
  .nav-toggle{display:inline-flex}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:52px 0}
  .form-row{grid-template-columns:1fr;gap:0}
  .timeline{padding-left:28px}
  .tl-item::before{left:-28px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .hero-actions .btn{flex:1 1 auto}
}
@media (max-width:520px){
  .section{padding:48px 0}
  .logo-text{font-size:17px}
  .hero-note{position:static;margin-top:16px;right:auto;bottom:auto}
  .stats-grid{grid-template-columns:1fr}
  .stat{border-right:0 !important}
  .stat+.stat{border-top:1px solid var(--c-line)}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-text{justify-content:center}
}