/* roulang page: index */
:root{
  --ink:#123B33;
  --ink-dark:#0C2A24;
  --ink-light:#1E574C;
  --amber:#E0A046;
  --amber-dark:#C98B31;
  --celadon:#6FB3A5;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --dark:#0E211D;
  --t1:#1B2320;
  --t2:#4A544F;
  --t3:#8A938E;
  --border:#E6E2D8;
  --divider:#EFEBE2;
  --sel:#EAF1EE;
  --ok:#2F7D5A;
  --warn:#B4762A;
  --err:#B3453B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh1:0 1px 2px rgba(16,36,31,.06), 0 8px 24px rgba(16,36,31,.05);
  --sh2:0 10px 28px rgba(16,36,31,.10);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--t1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.4;font-weight:600;letter-spacing:.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:96px 0}}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--border);
  transition:box-shadow .22s ease;
}
.site-header.is-stuck{box-shadow:0 6px 20px rgba(16,36,31,.08)}
.nav-inner{
  display:flex;align-items:center;gap:20px;
  height:56px;
}
@media (min-width:1024px){.nav-inner{height:68px;gap:28px}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:28px;height:28px;flex:0 0 28px;
  display:grid;place-items:center;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:15px;font-weight:700;color:var(--ink);letter-spacing:.01em}
.brand-sub{font-size:11px;color:var(--t3);letter-spacing:.08em}
@media (min-width:1024px){
  .brand-name{font-size:16px}
}
.nav-channels{display:none;align-items:center;gap:4px;margin-left:8px}
@media (min-width:1024px){.nav-channels{display:flex}}
.nav-channels a{
  position:relative;
  padding:20px 13px;
  font-size:15px;color:var(--t2);
  transition:color .15s ease;
}
.nav-channels a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:14px;height:3px;
  background:var(--amber);border-radius:2px;
  transform:scaleX(0);transform-origin:center;transition:transform .2s ease;
}
.nav-channels a:hover{color:var(--ink)}
.nav-channels a:hover::after{transform:scaleX(1)}
.nav-channels a.active{color:var(--ink);font-weight:600}
.nav-channels a.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-search{display:none;position:relative}
@media (min-width:1024px){.nav-search{display:block}}
.nav-search i{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--t3);pointer-events:none;
}
.nav-search input{
  width:210px;height:40px;
  padding:0 12px 0 34px;
  border:1px solid var(--border);border-radius:var(--r-btn);
  background:#FBFAF7;color:var(--t1);
  outline:none;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.nav-search input::placeholder{color:var(--t3)}
.nav-search input:focus{
  background:#fff;border-color:var(--amber);
  box-shadow:0 0 0 3px rgba(224,160,70,.28);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform .15s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.btn-primary{background:var(--amber);color:#241703;box-shadow:var(--sh1)}
.btn-primary:hover{background:#E7AB56;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--sel);border-color:var(--ink-light)}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--t1)}
.btn-ghost:hover{background:#fff;border-color:var(--celadon);color:var(--ink)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--ink);font-weight:600;font-size:15px;background:none;border:0;padding:0;cursor:pointer;
}
.btn-text i{font-size:12px;transition:transform .18s ease}
.btn-text:hover i{transform:translateX(3px)}
.btn-text:hover{color:var(--ink-light)}
.btn-sm{height:36px;padding:0 14px;font-size:14px}
.nav-cta{display:none}
@media (min-width:640px){.nav-cta{display:inline-flex}}
.hamburger{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:var(--r-btn);
  border:1px solid var(--border);background:#fff;color:var(--ink);cursor:pointer;
}
.hamburger:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
@media (min-width:1024px){.hamburger{display:none}}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,33,29,.45);
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;z-index:70;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;
  background:#fff;z-index:80;
  transform:translateX(100%);transition:transform .28s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
  box-shadow:-12px 0 32px rgba(16,36,31,.16);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{
  width:38px;height:38px;border-radius:var(--r-btn);border:1px solid var(--border);
  background:#fff;color:var(--ink);cursor:pointer;display:grid;place-items:center;
}
.drawer-close:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.drawer-search{position:relative;margin-bottom:18px}
.drawer-search i{position:absolute;left:12px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--t3)}
.drawer-search input{
  width:100%;height:44px;padding:0 12px 0 34px;border:1px solid var(--border);
  border-radius:var(--r-btn);background:#FBFAF7;outline:none;
}
.drawer-search input:focus{border-color:var(--amber);box-shadow:0 0 0 3px rgba(224,160,70,.28);background:#fff}
.drawer-links{display:flex;flex-direction:column;gap:2px;margin-bottom:20px}
.drawer-links a{
  padding:13px 12px;border-radius:var(--r-btn);color:var(--t2);font-size:15px;
  border-left:3px solid transparent;transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.drawer-links a:hover{background:var(--sel);color:var(--ink)}
.drawer-links a.active{background:var(--sel);color:var(--ink);font-weight:600;border-left-color:var(--amber)}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:auto}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(246,244,239,.94) 0%,rgba(246,244,239,.86) 55%,rgba(246,244,239,.98) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--border);
}
.hero-inner{
  display:grid;grid-template-columns:1fr;gap:36px;
  padding:52px 0 56px;
}
@media (min-width:768px){.hero-inner{padding:64px 0 72px}}
@media (min-width:1024px){
  .hero-inner{grid-template-columns:6fr 6fr;gap:48px;padding:84px 0 92px;align-items:center}
}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 14px;border-radius:999px;
  background:rgba(111,179,165,.20);color:var(--ink);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.hero h1{
  margin-top:18px;
  font-size:clamp(28px,5.2vw,46px);
  font-weight:700;line-height:1.35;letter-spacing:.01em;
  color:var(--ink);
}
.hero-sub{
  margin-top:16px;
  font-size:clamp(15px,2.1vw,18px);
  line-height:1.85;color:var(--t2);max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-actions .btn{height:48px;padding:0 26px;font-size:16px}
.trust-row{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:32px;padding-top:24px;
  border-top:1px solid var(--border);
}
.trust-row li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--t2)}
.trust-row i{color:var(--celadon);font-size:14px}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-card);border:1px solid var(--border);box-shadow:var(--sh1);
}
.hero-float{
  position:absolute;left:18px;bottom:-18px;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:14px 18px;box-shadow:var(--sh2);display:flex;align-items:center;gap:14px;
}
@media (min-width:1024px){.hero-float{left:-24px;bottom:26px}}
.hero-float .hf-num{font-size:26px;font-weight:700;color:var(--ink);line-height:1.1}
.hero-float .hf-txt{font-size:12px;color:var(--t3);line-height:1.5}

/* ---------- 通用板块标题 ---------- */
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
@media (min-width:1024px){.sec-head{margin-bottom:40px}}
.sec-eyebrow{
  display:block;font-size:13px;font-weight:600;letter-spacing:.14em;
  color:var(--celadon);text-transform:uppercase;margin-bottom:10px;
}
.sec-head h2{
  font-size:clamp(22px,3.2vw,32px);font-weight:600;color:var(--t1);line-height:1.4;
}
.sec-head p{margin-top:10px;font-size:15px;color:var(--t2);max-width:620px;line-height:1.85}

/* ---------- 服务 bento ---------- */
.bento{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.bento{grid-template-columns:repeat(6,1fr)}}
.bento-main{
  grid-column:span 1;
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh1);display:flex;flex-direction:column;overflow:hidden;
  transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;
}
@media (min-width:1024px){.bento-main{grid-column:span 6}}
.bento-main:hover{border-color:#C9D6D1;box-shadow:var(--sh2)}
.bento-main img{
  width:100%;aspect-ratio:16/9;object-fit:cover;margin-bottom:22px;
  transition:transform .3s ease;
}
.bento-main:hover img{transform:scale(1.03)}
.bento-grid{display:grid;grid-template-columns:1fr;gap:20px;grid-column:span 1}
@media (min-width:640px){.bento-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.bento-grid{grid-template-columns:repeat(3,1fr);grid-column:span 6}}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh1);
  transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;
  display:flex;flex-direction:column;
}
.card:hover{border-color:#C9D6D1;box-shadow:var(--sh2);transform:translateY(-2px)}
.card-icon{
  width:44px;height:44px;border-radius:12px;
  background:var(--sel);color:var(--ink);
  display:grid;place-items:center;font-size:17px;margin-bottom:16px;
  border:1px solid #DCE6E1;
}
.card h3{font-size:18px;font-weight:600;color:var(--t1);margin-bottom:8px}
.card p{font-size:15px;color:var(--t2);line-height:1.85}
.card .btn-text{margin-top:16px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 11px;border-radius:999px;
  background:rgba(111,179,165,.22);color:var(--ink);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}

/* ---------- 数据区 ---------- */
.stats-band{
  background:var(--dark);color:#E9F0ED;
  border-radius:var(--r-card);
  padding:40px 24px;
}
@media (min-width:1024px){.stats-band{padding:56px 48px}}
.stats-band h2{font-size:clamp(22px,3vw,30px);color:#fff;margin-bottom:12px}
.stats-band .lead{font-size:15px;color:#A9BCB6;max-width:640px;line-height:1.85}
.stats-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:28px 24px;margin-top:36px;
}
@media (min-width:1024px){.stats-grid{grid-template-columns:repeat(4,1fr);gap:0}}
.stat{padding:0}
@media (min-width:1024px){
  .stat{padding:0 28px;border-left:1px solid rgba(233,240,237,.18)}
  .stat:first-child{border-left:0;padding-left:0}
}
.stat .sv{
  font-size:clamp(34px,5vw,52px);font-weight:700;line-height:1.1;
  color:var(--amber);letter-spacing:-.01em;
}
.stat .sl{margin-top:10px;font-size:14px;color:#B8C9C4;line-height:1.7}

/* ---------- 案例 ---------- */
.case-row{
  display:grid;grid-template-columns:1fr;gap:24px;align-items:center;
  padding:28px 0;
}
@media (min-width:1024px){
  .case-row{grid-template-columns:5fr 7fr;gap:48px;padding:36px 0}
  .case-row.reverse .case-media{order:2}
  .case-row.reverse .case-text{order:1}
}
.case-media img{width:100%;aspect-ratio:3/2;object-fit:cover;border:1px solid var(--border);box-shadow:var(--sh1)}
.case-text h3{font-size:clamp(19px,2.6vw,24px);color:var(--t1);margin-bottom:12px}
.case-text p{font-size:15.5px;color:var(--t2);line-height:1.9}
.case-text .btn-text{margin-top:18px}
.case-divider{border-top:1px solid var(--divider)}

/* ---------- 方案轨道 ---------- */
.rail-wrap{position:relative}
.rail{
  display:flex;gap:20px;overflow-x:auto;padding:6px 2px 18px;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none}
.rail-card{
  flex:0 0 82%;
  scroll-snap-align:start;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh1);
  transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;
}
@media (min-width:640px){.rail-card{flex:0 0 46%}}
@media (min-width:1024px){.rail-card{flex:0 0 30%}}
.rail-card:hover,.rail-card:focus-visible{border-color:#C9D6D1;box-shadow:var(--sh2);transform:translateY(-2px);outline:none}
.rail-card:focus-visible{outline:2px solid var(--amber);outline-offset:3px}
.rail-num{
  font-size:34px;font-weight:700;color:var(--celadon);line-height:1;
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.rail-card h3{font-size:18px;color:var(--t1);margin-bottom:8px}
.rail-card p{font-size:14.5px;color:var(--t2);line-height:1.8}
.rail-card ul{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.rail-card ul li{display:flex;gap:9px;font-size:14px;color:var(--t2);line-height:1.7}
.rail-card ul li::before{
  content:"";flex:0 0 6px;width:6px;height:6px;border-radius:50%;
  background:var(--celadon);margin-top:9px;
}
.rail-hint{font-size:13px;color:var(--t3)}

/* ---------- 最新动态 ---------- */
.latest-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:1024px){.latest-grid{grid-template-columns:6fr 6fr;gap:28px}}
.post-feature{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh1);
  transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;
}
.post-feature:hover{border-color:#C9D6D1;box-shadow:var(--sh2);transform:translateY(-2px)}
.post-feature img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.post-feature .pf-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px}
.post-feature h3{
  font-size:clamp(18px,2.4vw,22px);color:var(--t1);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-feature p{
  font-size:15px;color:var(--t2);line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--t3)}
.post-list{display:flex;flex-direction:column;gap:14px}
.post-mini{
  display:flex;gap:16px;align-items:flex-start;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:16px;box-shadow:var(--sh1);
  transition:box-shadow .22s ease,border-color .22s ease,transform .22s ease;
}
.post-mini:hover{border-color:#C9D6D1;box-shadow:var(--sh2);transform:translateY(-2px)}
.post-mini img{width:96px;height:72px;flex:0 0 96px;object-fit:cover;border-radius:10px}
@media (min-width:1024px){.post-mini img{width:112px;height:78px;flex:0 0 112px}}
.post-mini h3{
  font-size:15.5px;color:var(--t1);line-height:1.6;margin-bottom:7px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-mini .meta-row{font-size:12.5px}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  padding:56px 24px;text-align:center;
  background:#fff;border:1px dashed var(--border);border-radius:var(--r-card);
}
.empty-state i{font-size:26px;color:var(--celadon)}
.empty-state p{font-size:15px;color:var(--t2)}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1fr;gap:28px}
@media (min-width:1024px){.faq-layout{grid-template-columns:4fr 8fr;gap:48px}}
.faq-aside{position:relative}
@media (min-width:1024px){.faq-aside{position:sticky;top:96px;align-self:start}}
.faq-aside h2{font-size:clamp(22px,3vw,30px);color:var(--t1);margin-bottom:14px}
.faq-aside p{font-size:15px;color:var(--t2);line-height:1.9;margin-bottom:20px}
.faq-contact{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh1);
}
.faq-contact .fc-title{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:6px}
.faq-contact .fc-txt{font-size:13.5px;color:var(--t3);line-height:1.75}
.faq-list{border-top:1px solid var(--divider)}
.faq-item{border-bottom:1px solid var(--divider);position:relative}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:20px 0 20px 0;background:none;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--t1);line-height:1.6;
  transition:color .18s ease,padding-left .2s ease;
}
.faq-q:hover{color:var(--ink-light)}
.faq-q:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px}
.faq-item.open .faq-q{padding-left:14px}
.faq-item.open .faq-q::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;
  background:var(--ink);border-radius:2px;
}
.faq-icon{
  flex:0 0 22px;width:22px;height:22px;margin-top:4px;
  display:grid;place-items:center;color:var(--ink);font-size:13px;
  transition:transform .24s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a-inner{
  padding:0 0 22px 0;font-size:15.5px;color:var(--t2);line-height:1.9;max-width:760px;
}
.faq-item.open .faq-a-inner{padding-left:14px}

/* ---------- 联系表单 ---------- */
.contact-band{
  background:linear-gradient(180deg,#EAF1EE 0%,#F2F6F4 100%);
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
}
.contact-layout{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1024px){.contact-layout{grid-template-columns:5fr 7fr;gap:56px;align-items:start}}
.contact-copy h2{font-size:clamp(22px,3vw,30px);color:var(--ink);margin-bottom:14px}
.contact-copy p{font-size:15.5px;color:var(--t2);line-height:1.9}
.contact-points{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.contact-points li{display:flex;gap:11px;font-size:14.5px;color:var(--t2);line-height:1.8}
.contact-points i{color:var(--celadon);margin-top:6px;font-size:13px}
.form-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh1);
}
@media (min-width:768px){.form-card{padding:32px}}
.form-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:768px){.form-grid{grid-template-columns:1fr 1fr}.form-full{grid-column:1/-1}}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--t2);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;
  border:1px solid var(--border);border-radius:var(--r-btn);
  background:#FBFAF7;color:var(--t1);outline:none;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field textarea{height:120px;padding:12px 14px;resize:vertical;line-height:1.8}
.field input:focus,.field select:focus,.field textarea:focus{
  background:#fff;border-color:var(--amber);
  box-shadow:0 0 0 3px rgba(224,160,70,.26);
}
.field.invalid input,.field.invalid select,.field.invalid textarea{
  border-color:var(--err);box-shadow:0 0 0 3px rgba(179,69,59,.14);
}
.err-msg{display:none;margin-top:6px;font-size:14px;color:var(--err)}
.field.invalid .err-msg{display:block}
.form-note{font-size:13px;color:var(--t3);line-height:1.8}
.form-ok{
  display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-btn);
  background:rgba(47,125,90,.10);border:1px solid rgba(47,125,90,.28);
  color:var(--ok);font-size:14px;
}
.form-ok.show{display:block}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:var(--ink);color:#E9F0ED;border-radius:var(--r-card);
  padding:36px 26px;
  display:flex;flex-direction:column;gap:22px;
}
@media (min-width:1024px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:44px 48px;gap:40px}
}
.cta-band h2{font-size:clamp(20px,2.8vw,26px);color:#fff;margin-bottom:10px}
.cta-band p{font-size:15px;color:#AFC2BC;line-height:1.85;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#C9D6D1;margin-top:0;padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:40px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:2.2fr 1fr 1fr 1.3fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-name{color:#fff;font-size:16px}
.footer-brand .brand-sub{color:#8FA5A0}
.footer-desc{font-size:14px;color:#9FB3AE;line-height:1.9;max-width:340px}
.footer-kw{
  display:inline-block;margin-top:16px;padding:4px 12px;border-radius:999px;
  background:rgba(111,179,165,.16);color:#BED7D1;font-size:12.5px;
}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{
  font-size:14px;color:#C9D6D1;
  transition:color .16s ease,transform .16s ease;
}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-contact{display:flex;flex-direction:column;gap:11px;font-size:14px;color:#9FB3AE;line-height:1.8}
.footer-contact strong{color:#DCE7E3;font-weight:600}
.footer-bottom{
  border-top:1px solid rgba(233,240,237,.14);
  padding:20px 0 28px;
  display:flex;flex-direction:column;gap:10px;
  font-size:13px;color:#879C97;
}
@media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}
.footer-bottom a{color:#B7C9C4}
.footer-bottom a:hover{color:#fff}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* roulang page: article */
:root{
  --brand:#123B33;
  --brand-dark:#0C2A24;
  --brand-light:#1E574C;
  --amber:#E0A046;
  --celadon:#6FB3A5;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --dark:#0E211D;
  --text:#1B2320;
  --text-2:#4A544F;
  --text-3:#8A938E;
  --border:#E6E2D8;
  --divider:#EFEBE2;
  --sel:#EAF1EE;
  --success:#2F7D5A;
  --warn:#B4762A;
  --error:#B3453B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,36,31,.06), 0 8px 24px rgba(16,36,31,.05);
  --sh-2:0 10px 28px rgba(16,36,31,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease, background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,36,31,.08)}
.nav-inner{display:flex;align-items:center;gap:20px;height:68px}
@media(max-width:1023px){.nav-inner{height:56px;gap:12px}}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:inline-flex;width:28px;height:28px;flex:0 0 28px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:16px;font-weight:700;color:var(--brand);letter-spacing:.01em}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.08em}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;font-size:15px;color:var(--text-2);
  border-radius:8px;transition:color .15s ease, background .15s ease;
}
.nav-link:hover{color:var(--brand);background:var(--sel)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:3px;border-radius:3px;background:var(--amber);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search .search-icon{position:absolute;left:12px;color:var(--text-3);font-size:13px;pointer-events:none}
.nav-search input{
  width:220px;height:40px;padding:0 12px 0 34px;border:1px solid var(--border);
  background:#fff;border-radius:var(--r-btn);color:var(--text);outline:none;
  transition:border-color .15s ease, box-shadow .15s ease;
}
.nav-search input::placeholder{color:var(--text-3);font-size:14px}
.nav-search input:focus{border-color:var(--amber);box-shadow:0 0 0 2px rgba(224,160,70,.45)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .15s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn-primary{background:var(--amber);color:#2A1E08;font-weight:600}
.btn-primary:hover{background:#E7AC58;transform:translateY(-1px);box-shadow:0 8px 18px rgba(224,160,70,.35)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--brand);border:1px solid var(--brand)}
.btn-ghost:hover{background:var(--brand-light);color:#fff;border-color:var(--brand-light)}
.btn-text{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px;padding:4px 0}
.btn-text i{transition:transform .2s ease}
.btn-text:hover i{transform:translateX(3px)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--border);
  align-items:center;justify-content:center;color:var(--brand);background:#fff;
}
@media(max-width:1023px){
  .main-nav,.nav-search,.btn-ghost{display:none}
  .nav-toggle{display:inline-flex}
  .brand-sub{display:none}
}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,33,29,.45);opacity:0;visibility:hidden;
  transition:opacity .25s ease, visibility .25s ease;z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:300px;max-width:86vw;background:#fff;z-index:80;
  transform:translateX(102%);transition:transform .28s ease;box-shadow:-12px 0 32px rgba(16,36,31,.16);
  padding:22px 20px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--border);display:inline-flex;align-items:center;justify-content:center;color:var(--brand)}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-links a{padding:12px 10px;border-radius:10px;color:var(--text-2);border-bottom:1px solid var(--divider)}
.drawer-links a:hover{background:var(--sel);color:var(--brand)}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:4px}
.drawer-search{display:flex;align-items:center;gap:8px;border:1px solid var(--border);border-radius:10px;padding:0 12px;height:44px}
.drawer-search input{flex:1;border:none;outline:none;height:42px;background:transparent}

/* ============ 文章头 ============ */
.article-hero{
  background:
    linear-gradient(180deg, rgba(246,244,239,.94) 0%, rgba(246,244,239,.98) 62%, var(--bg) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--border);
  padding:30px 0 40px;
}
@media(min-width:1024px){.article-hero{padding:38px 0 56px}}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C4CBC6}
.breadcrumb .current{color:var(--text-3);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--sel);color:var(--brand-light);font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.badge-amber{background:rgba(224,160,70,.16);color:#8A5A12}
.article-head h1{
  font-size:clamp(24px,3.4vw,38px);font-weight:700;line-height:1.35;letter-spacing:.01em;
  color:var(--text);margin:16px 0 0;max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:18px;padding-top:18px;
  border-top:1px solid var(--divider);font-size:13.5px;color:var(--text-3);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#CFD6D1}
.article-meta i{color:var(--celadon);margin-right:6px}

/* ============ 正文布局 ============ */
.article-layout{display:grid;grid-template-columns:1fr;gap:32px;padding-top:48px;padding-bottom:72px}
@media(min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:48px;padding-top:64px;padding-bottom:96px}
}
.article-main{min-width:0}
.article-panel{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sh-1);
}
@media(min-width:768px){.article-panel{padding:40px 44px}}
.article-body{font-size:17px;line-height:1.95;color:var(--text-2);overflow-wrap:break-word}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1em}
.article-body h2{
  font-size:clamp(21px,2.4vw,27px);font-weight:600;line-height:1.4;color:var(--text);
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--brand);
}
.article-body h3{font-size:19px;font-weight:600;line-height:1.5;color:var(--text);margin:28px 0 12px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:22px}
.article-body ul li{position:relative;margin:9px 0;padding-left:4px}
.article-body ul li::before{
  content:"";position:absolute;left:-16px;top:12px;width:6px;height:6px;border-radius:2px;
  background:var(--celadon);transform:rotate(45deg);
}
.article-body ol{list-style:decimal}
.article-body ol li{margin:9px 0}
.article-body ol li::marker{color:var(--brand);font-weight:600}
.article-body img{border-radius:var(--r-img);margin:22px auto;max-width:100%;height:auto}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body blockquote{
  background:var(--bg);border-left:4px solid var(--brand);border-radius:0 10px 10px 0;
  padding:16px 22px;margin:22px 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;
  background:#fff;border:1px solid var(--border);border-radius:12px;overflow:hidden;
}
.article-body th{background:var(--sel);color:var(--brand);text-align:left;padding:12px 14px;font-weight:600}
.article-body td{padding:12px 14px;border-top:1px solid var(--divider);color:var(--text-2)}
.article-body a{color:var(--brand-light);border-bottom:1px solid rgba(30,87,76,.35)}
.article-body a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.article-body hr{border:none;border-top:1px solid var(--divider);margin:34px 0}
@media(max-width:767px){
  .article-body{font-size:16.5px;line-height:1.9}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
}

/* 正文尾部导航 */
.article-tail{margin-top:40px}
.tail-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:640px){.tail-grid{grid-template-columns:1fr 1fr}}
.tail-card{
  display:block;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:18px 20px;transition:box-shadow .2s ease, border-color .2s ease, transform .2s ease;
}
.tail-card:hover{border-color:#C9D6D1;box-shadow:var(--sh-2);transform:translateY(-2px)}
.tail-card .tail-label{font-size:12.5px;color:var(--text-3);letter-spacing:.06em}
.tail-card .tail-title{margin-top:8px;font-size:16.5px;font-weight:600;color:var(--text);line-height:1.5}
.tail-card:hover .tail-title{color:var(--brand)}
.tail-back{margin-top:20px}

/* 侧栏 */
.article-side{display:flex;flex-direction:column;gap:20px}
.side-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:15px;font-weight:600;color:var(--text);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--amber)}
.side-links{display:flex;flex-direction:column;gap:2px}
.side-links a{
  display:flex;align-items:flex-start;gap:8px;padding:9px 8px;border-radius:9px;
  font-size:14.5px;color:var(--text-2);line-height:1.6;transition:background .15s ease,color .15s ease;
}
.side-links a::before{content:"";flex:0 0 6px;height:6px;margin-top:9px;border-radius:50%;background:var(--celadon)}
.side-links a:hover{background:var(--sel);color:var(--brand)}
.side-note{
  background:var(--brand);color:#D6E3DF;border-radius:var(--r-card);padding:22px 20px;border:none;
}
.side-note h3{color:#fff}
.side-note h3::before{background:var(--amber)}
.side-note p{font-size:14px;line-height:1.85;color:#BCCCC7}
.side-note .btn{margin-top:16px;width:100%}
@media(min-width:1024px){.article-side{position:sticky;top:88px;align-self:start}}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 20px;border:1px dashed var(--border);border-radius:var(--r-card);background:#fff;
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;background:var(--sel);
  display:flex;align-items:center;justify-content:center;color:var(--brand-light);font-size:22px;
}
.empty-state h2{font-size:20px;font-weight:600;color:var(--text);margin-bottom:8px}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:18px}

/* 相关推荐 */
.related{padding:0 0 80px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-head h2{font-size:clamp(21px,2.4vw,26px);font-weight:600;color:var(--text);line-height:1.4}
.section-head p{font-size:14px;color:var(--text-3);margin-top:6px}
.card-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:640px){.card-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr)}}
.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;
  display:flex;flex-direction:column;transition:box-shadow .2s ease, border-color .2s ease, transform .2s ease;
}
.card:hover{border-color:#C9D6D1;box-shadow:var(--sh-2);transform:translateY(-2px)}
.card-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--sel)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-thumb img{transform:scale(1.03)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:17px;font-weight:600;line-height:1.5;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card:hover .card-title{color:var(--brand)}
.card-desc{font-size:14.5px;line-height:1.8;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:8px;font-size:13px;color:var(--text-3)}

/* CTA 条 */
.cta-band{padding:0 0 88px}
.cta-inner{
  background:var(--dark);border-radius:18px;padding:40px 28px;
  display:grid;grid-template-columns:1fr;gap:26px;align-items:center;
}
@media(min-width:1024px){.cta-inner{grid-template-columns:1.4fr 1fr;padding:52px 56px;gap:40px}}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,30px);font-weight:600;line-height:1.4}
.cta-inner p{color:#B9CAC5;font-size:15.5px;line-height:1.9;margin-top:12px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media(min-width:1024px){.cta-actions{justify-content:flex-end}}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#C9D6D1;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media(min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:#8FA5A0}
.footer-desc{font-size:14.5px;line-height:1.85;color:#9FB3AE;max-width:340px}
.footer-kw{
  display:inline-flex;margin-top:16px;padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(111,179,165,.16);color:#A9D3C9;font-size:12.5px;letter-spacing:.04em;
}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14.5px;color:#C9D6D1;transition:color .18s ease, transform .18s ease;display:inline-block}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14.5px;color:#9FB3AE}
.footer-contact strong{color:#C9D6D1;font-weight:600}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13.5px;color:#8FA5A0;
}
.footer-bottom a{color:#A9D3C9}
.footer-bottom a:hover{color:#fff;text-decoration:underline}
@media(max-width:767px){
  .site-footer{padding-top:48px}
  .footer-bottom{margin-top:36px}
}

/* roulang page: category1 */
:root{
  --brand:#123B33;
  --brand-dark:#0C2A24;
  --brand-light:#1E574C;
  --amber:#E0A046;
  --celadon:#6FB3A5;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --dark-band:#0E211D;
  --text:#1B2320;
  --text-2:#4A544F;
  --text-3:#8A938E;
  --border:#E6E2D8;
  --line:#EFEBE2;
  --sel:#EAF1EE;
  --ok:#2F7D5A;
  --warn:#B4762A;
  --err:#B3453B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,36,31,.06), 0 8px 24px rgba(16,36,31,.05);
  --sh-2:0 10px 28px rgba(16,36,31,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.4;font-weight:600;letter-spacing:.01em;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px;}
::selection{background:#F2DDB8;color:var(--brand-dark);}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--border);
  height:68px;transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,36,31,.07);}
.header-inner{display:flex;align-items:center;gap:26px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{display:inline-flex;width:30px;height:30px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:700;color:var(--brand);}
.brand-sub{font-size:11.5px;color:var(--text-3);letter-spacing:.14em;}
.main-nav{display:flex;align-items:center;gap:26px;height:100%;}
.main-nav a{
  position:relative;display:inline-flex;align-items:center;height:68px;
  font-size:15px;color:var(--text-2);transition:color .15s ease;
}
.main-nav a:hover{color:var(--brand);}
.main-nav a.active{color:var(--brand);font-weight:600;}
.main-nav a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:var(--amber);border-radius:2px 2px 0 0;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{position:relative;display:block;}
.search-box svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-3);}
.search-box input{
  width:224px;height:40px;border:1px solid var(--border);border-radius:var(--r-btn);
  background:#FAF8F4;padding:0 12px 0 38px;font-size:14px;transition:border-color .15s, background .15s;
}
.search-box input::placeholder{color:var(--text-3);}
.search-box input:focus{background:#fff;border-color:var(--celadon);outline:2px solid var(--amber);outline-offset:2px;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--border);border-radius:var(--r-btn);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{border-color:#C9D6D1;background:#FAF8F4;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .15s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
}
.btn-primary{background:var(--amber);color:#22180A;box-shadow:0 4px 12px rgba(224,160,70,.26);}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 22px rgba(224,160,70,.32);filter:brightness(1.04);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 2px 8px rgba(224,160,70,.26);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--sel);border-color:var(--brand-light);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:36px;padding:0 16px;font-size:14px;}
.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;}
.link-arrow svg{transition:transform .18s ease;}
.link-arrow:hover svg{transform:translateX(3px);}

/* 移动抽屉 */
.nav-overlay{
  position:fixed;inset:0;background:rgba(14,33,29,.45);opacity:0;visibility:hidden;
  transition:opacity .2s ease, visibility .2s ease;z-index:70;
}
.nav-overlay.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:min(320px,86vw);background:#fff;z-index:80;
  transform:translateX(100%);transition:transform .26s ease;padding:20px;overflow-y:auto;
  box-shadow:-12px 0 32px rgba(16,36,31,.16);
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{width:40px;height:40px;border:1px solid var(--border);border-radius:var(--r-btn);background:#fff;cursor:pointer;}
.drawer-links a{display:block;padding:12px 4px;border-bottom:1px solid var(--line);color:var(--text-2);font-size:15.5px;}
.drawer-links a.active{color:var(--brand);font-weight:600;}
.drawer-search{position:relative;margin:16px 0;}
.drawer-search input{width:100%;height:42px;border:1px solid var(--border);border-radius:var(--r-btn);background:#FAF8F4;padding:0 12px 0 38px;font-size:14px;}
.drawer-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-3);}
.drawer-cta{display:flex;flex-direction:column;gap:10px;margin-top:16px;}

/* ---------- 分类 Banner ---------- */
.cat-banner{
  background:linear-gradient(180deg,#F6F4EF 0%,#EAF1EE 100%);
  border-bottom:1px solid var(--border);
  padding:34px 0 46px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:20px;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C3BDB0;}
.breadcrumb .current{color:var(--text-3);}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  background:var(--sel);color:var(--brand);font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.badge-amber{background:#FBEFDA;color:var(--warn);}
.cat-banner h1{
  margin:16px 0 12px;
  font-size:clamp(26px,3.6vw,42px);
  font-weight:700;line-height:1.35;color:var(--brand-dark);letter-spacing:.01em;
}
.cat-banner .lead{max-width:760px;font-size:17px;color:var(--text-2);line-height:1.9;margin:0;}
.banner-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.meta-chip{
  display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--border);
  border-radius:999px;padding:7px 14px;font-size:13px;color:var(--text-2);
}
.meta-chip strong{color:var(--brand);font-weight:600;font-variant-numeric:tabular-nums;}

/* ---------- 区块通用 ---------- */
.section{padding:56px 0;}
@media (min-width:768px){.section{padding:72px 0;}}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head h2{font-size:clamp(22px,2.6vw,32px);color:var(--brand-dark);margin-bottom:12px;}
.section-head p{color:var(--text-2);font-size:16px;margin:0;}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.16em;color:var(--celadon);text-transform:uppercase;margin-bottom:12px;}

/* ---------- 分类主体 ---------- */
.cat-layout{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:1024px){.cat-layout{grid-template-columns:3fr 9fr;gap:36px;}}
.toc{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:18px 14px;box-shadow:var(--sh-1);
}
@media (min-width:1024px){.toc{position:sticky;top:96px;align-self:start;}}
.toc h3{font-size:14px;color:var(--text-3);letter-spacing:.1em;margin:6px 10px 12px;}
.toc a{
  display:block;padding:10px 12px;font-size:14.5px;color:var(--text-2);
  border-left:3px solid transparent;border-radius:0 8px 8px 0;transition:background .15s,color .15s,border-color .15s;
}
.toc a:hover{background:#FAF8F4;color:var(--brand);}
.toc a.active{background:var(--sel);color:var(--brand);border-left-color:var(--brand);font-weight:600;}

.steps{display:flex;flex-direction:column;gap:24px;}
.step{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
  transition:box-shadow .2s ease, border-color .2s ease, transform .2s ease;
}
.step:hover{border-color:#C9D6D1;box-shadow:var(--sh-2);transform:translateY(-2px);}
.step--wide{}
.step--mid{max-width:94%;}
.step--narrow{max-width:86%;}
@media (max-width:767px){.step--mid,.step--narrow{max-width:100%;}}
.step-head{display:flex;align-items:flex-start;gap:18px;margin-bottom:14px;}
.step-num{
  font-size:40px;font-weight:700;line-height:1;color:var(--celadon);
  font-variant-numeric:tabular-nums;flex:0 0 auto;
}
.step-head h3{font-size:19px;color:var(--brand-dark);line-height:1.5;}
.step-head .step-sub{display:block;font-size:13px;color:var(--text-3);font-weight:400;margin-top:4px;}
.step p{color:var(--text-2);font-size:15.5px;line-height:1.9;margin-bottom:12px;}
.point-list li{position:relative;padding-left:20px;margin:8px 0;font-size:15px;color:var(--text-2);line-height:1.8;}
.point-list li::before{
  content:"";position:absolute;left:2px;top:12px;width:6px;height:6px;border-radius:50%;background:var(--celadon);
}
.step-foot{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);}

/* ---------- 深色数据带 ---------- */
.band-dark{background:var(--dark-band);color:#E8EFEC;padding:56px 0;}
@media (min-width:1024px){.band-dark{padding:80px 0;}}
.band-dark h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;}
.band-dark .band-lead{color:#A9BDB7;max-width:700px;font-size:15.5px;margin:0;}
.stats{display:grid;grid-template-columns:1fr;gap:28px;margin-top:36px;}
@media (min-width:640px){.stats{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.stats{grid-template-columns:repeat(4,1fr);gap:0;}}
.stat{padding-left:22px;border-left:1px solid rgba(255,255,255,.14);}
@media (min-width:1024px){.stat{padding-left:26px;}}
.stat-num{
  display:inline-block;font-size:clamp(34px,4.6vw,52px);font-weight:700;color:var(--amber);
  line-height:1.05;font-variant-numeric:tabular-nums;
}
.stat-unit{font-size:15px;color:#CFE0DA;margin-left:6px;}
.stat-label{display:block;margin-top:8px;font-size:14px;color:#A9BDB7;line-height:1.7;}

/* ---------- 图文交替块 ---------- */
.split{display:grid;grid-template-columns:1fr;gap:28px;align-items:center;}
@media (min-width:1024px){.split{grid-template-columns:5fr 7fr;gap:44px;}}
.split--rev .split-media{order:0;}
@media (min-width:1024px){.split--rev .split-media{order:2;}}
.split-media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);
  border:1px solid var(--border);background:var(--sel);
}
.split h2{font-size:clamp(22px,2.4vw,30px);color:var(--brand-dark);margin-bottom:14px;}
.split p{color:var(--text-2);font-size:15.5px;line-height:1.9;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:6px 0 20px;}
.tag{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 12px;font-size:12.5px;font-weight:600;}
.tag-do{background:#E7F2EC;color:var(--ok);}
.tag-dont{background:#FBEDEB;color:var(--err);}
.tag-info{background:var(--sel);color:var(--brand);}

.check-list{margin-top:8px;border-top:1px solid var(--line);}
.check-item{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);
}
.check-icon{
  flex:0 0 30px;width:30px;height:30px;border-radius:9px;background:var(--sel);
  display:flex;align-items:center;justify-content:center;color:var(--brand-light);
}
.check-item h4{font-size:16px;color:var(--text);margin-bottom:4px;}
.check-item p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin:0;}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:1024px){.faq-layout{grid-template-columns:4fr 8fr;gap:48px;}}
.faq-aside{align-self:start;}
@media (min-width:1024px){.faq-aside{position:sticky;top:96px;}}
.faq-aside h2{font-size:clamp(22px,2.4vw,30px);color:var(--brand-dark);margin-bottom:14px;}
.faq-aside p{color:var(--text-2);font-size:15.5px;}
.faq-contact{
  margin-top:20px;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1);
}
.faq-contact span{display:block;font-size:14px;color:var(--text-3);margin-bottom:8px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:18px 0;font-size:17px;font-weight:600;color:var(--text);transition:color .15s;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary .mark{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--sel);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;font-weight:600;
}
.faq-item[open] summary{color:var(--brand);}
.faq-item[open] summary .mark{background:var(--amber);color:#22180A;}
.faq-answer{
  padding:0 0 20px 16px;border-left:3px solid var(--brand);
  color:var(--text-2);font-size:15.5px;line-height:1.9;
}
.faq-answer p:last-child{margin-bottom:0;}

/* ---------- 相关分类 ---------- */
.rel-links{display:grid;grid-template-columns:1fr;gap:14px;}
@media (min-width:768px){.rel-links{grid-template-columns:repeat(3,1fr);gap:20px;}}
.rel-link{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:18px 20px;box-shadow:var(--sh-1);
  transition:border-color .18s, box-shadow .18s, transform .18s;
}
.rel-link:hover{border-color:#C9D6D1;box-shadow:var(--sh-2);transform:translateY(-2px);}
.rel-link .rel-title{font-size:15.5px;font-weight:600;color:var(--brand-dark);}
.rel-link .rel-desc{display:block;font-size:13.5px;color:var(--text-3);font-weight:400;margin-top:4px;}
.rel-link svg{color:var(--brand);flex:0 0 auto;transition:transform .18s;}
.rel-link:hover svg{transform:translateX(3px);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:18px;color:#fff;
  background-image:linear-gradient(120deg, rgba(12,42,36,.94) 0%, rgba(18,59,51,.88) 60%, rgba(30,87,76,.82) 100%),
                   url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:36px 26px;
}
@media (min-width:1024px){.cta-band{padding:52px 48px;}}
.cta-inner{display:grid;grid-template-columns:1fr;gap:24px;align-items:center;}
@media (min-width:1024px){.cta-inner{grid-template-columns:7fr 5fr;}}
.cta-band h2{color:#fff;font-size:clamp(21px,2.3vw,28px);margin-bottom:12px;}
.cta-band p{color:#C6D8D2;font-size:15.5px;margin:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media (min-width:1024px){.cta-actions{justify-content:flex-end;}}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff;}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark-band);color:#C9D6D1;padding:60px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:38px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{display:flex;flex-direction:column;line-height:1.2;}
.site-footer .brand-name{color:#fff;font-size:16px;font-weight:700;}
.site-footer .brand-sub{color:#8FA7A1;font-size:11.5px;letter-spacing:.14em;}
.footer-desc{font-size:14px;color:#A9BDB7;line-height:1.85;margin:0 0 12px;max-width:340px;}
.footer-kw{
  display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;
  background:rgba(111,179,165,.16);color:#9ED0C4;
}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-links a{
  display:block;padding:6px 0;color:#C9D6D1;font-size:14px;
  transition:color .16s ease, transform .16s ease;
}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-contact span{display:block;font-size:14px;color:#C9D6D1;padding:5px 0;}
.footer-contact strong{color:#8FA7A1;font-weight:500;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;font-size:13px;color:#8FA7A1;
}
.footer-bottom a{color:#9ED0C4;}
.footer-bottom a:hover{color:#fff;text-decoration:underline;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .main-nav,.header-actions .search-box,.header-actions .btn-ghost{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions{gap:10px;}
}
@media (max-width:639px){
  body{font-size:16px;line-height:1.85;}
  .site-header{height:60px;}
  .header-inner{height:60px;gap:14px;}
  .brand-sub{display:none;}
  .brand-name{font-size:15px;}
  .header-actions .btn-primary{height:38px;padding:0 14px;font-size:14px;}
  .step{padding:20px;}
  .step-num{font-size:32px;}
  .cta-band{padding:28px 20px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category2 */
:root{
    --green-900:#0C2A24;
    --green-800:#123B33;
    --green-600:#1E574C;
    --amber:#E0A046;
    --celadon:#6FB3A5;
    --bg:#F6F4EF;
    --card:#FFFFFF;
    --dark-band:#0E211D;
    --text:#1B2320;
    --text-2:#4A544F;
    --text-3:#8A938E;
    --border:#E6E2D8;
    --divider:#EFEBE2;
    --sel:#EAF1EE;
    --ok:#2F7D5A;
    --warn:#B4762A;
    --err:#B3453B;
    --r-card:14px;
    --r-img:12px;
    --r-btn:10px;
    --sh-sm:0 1px 2px rgba(16,36,31,.06), 0 8px 24px rgba(16,36,31,.05);
    --sh-lg:0 10px 28px rgba(16,36,31,.10);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",sans-serif;
    background:var(--bg);
    color:var(--text);
    font-size:16px;
    line-height:1.9;
    letter-spacing:.01em;
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button,input,select,textarea{font:inherit;color:inherit}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px}
  ::selection{background:rgba(111,179,165,.35)}

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

  /* ============ Header ============ */
  .site-header{
    position:sticky;top:0;z-index:60;background:#fff;
    border-bottom:1px solid var(--border);
    transition:box-shadow .25s ease;
  }
  .site-header.is-scrolled{box-shadow:0 8px 24px rgba(16,36,31,.09)}
  .header-inner{display:flex;align-items:center;gap:20px;height:56px}
  @media (min-width:1024px){.header-inner{height:68px;gap:24px}}

  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{display:inline-flex;flex:0 0 auto}
  .brand-text{display:flex;flex-direction:column;line-height:1.25}
  .brand-name{font-size:15.5px;font-weight:700;color:var(--green-800);letter-spacing:.01em;white-space:nowrap}
  .brand-sub{font-size:11.5px;color:var(--text-3);white-space:nowrap}
  @media (max-width:400px){.brand-sub{display:none}}

  .main-nav{display:none;align-items:center;gap:2px;margin-left:8px}
  @media (min-width:1024px){.main-nav{display:flex}}
  .main-nav a{
    position:relative;display:inline-flex;align-items:center;height:68px;
    padding:0 12px;font-size:15px;color:var(--text-2);transition:color .15s ease;
    white-space:nowrap;
  }
  .main-nav a::after{
    content:"";position:absolute;left:12px;right:12px;bottom:0;height:3px;
    border-radius:3px;background:transparent;transition:background .2s ease;
  }
  .main-nav a:hover{color:var(--green-800)}
  .main-nav a.is-active{color:var(--green-800);font-weight:600}
  .main-nav a.is-active::after{background:var(--amber)}

  .header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
  .search-box{position:relative;display:none;align-items:center}
  @media (min-width:1024px){.search-box{display:flex}}
  .search-box svg{position:absolute;left:12px;color:var(--text-3);pointer-events:none}
  .search-box input{
    width:224px;height:40px;padding:0 12px 0 36px;
    border:1px solid var(--border);border-radius:var(--r-btn);
    background:var(--bg);font-size:14px;transition:border-color .15s,box-shadow .15s,background .15s;
  }
  .search-box input::placeholder{color:var(--text-3)}
  .search-box input:focus{outline:none;background:#fff;border-color:var(--amber);box-shadow:0 0 0 2px rgba(224,160,70,.35)}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:40px;padding:0 18px;border-radius:var(--r-btn);
    font-size:14px;font-weight:600;border:1px solid transparent;cursor:pointer;
    transition:transform .15s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,filter .2s ease;
    white-space:nowrap;
  }
  .btn-primary{background:var(--amber);color:#2A1B06}
  .btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 20px rgba(224,160,70,.34);filter:brightness(1.04)}
  .btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(224,160,70,.28)}
  .btn-ghost{background:transparent;border-color:var(--green-800);color:var(--green-800)}
  .btn-ghost:hover{background:var(--sel)}
  .btn-lg{height:48px;padding:0 26px;font-size:15px}
  .btn-light{background:#fff;color:var(--green-800);border-color:#fff}
  .btn-light:hover{transform:translateY(-1px);box-shadow:0 10px 22px rgba(0,0,0,.22)}
  .btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
  .btn-outline-light:hover{background:rgba(255,255,255,.12)}

  .header-tools .btn-ghost,.header-tools .btn-primary{display:none}
  @media (min-width:1024px){.header-tools .btn-ghost,.header-tools .btn-primary{display:inline-flex}}

  .menu-toggle{
    display:inline-flex;align-items:center;justify-content:center;
    width:40px;height:40px;border:1px solid var(--border);border-radius:var(--r-btn);
    background:#fff;cursor:pointer;
  }
  .menu-toggle:hover{background:var(--sel)}
  .menu-toggle span{display:block;width:18px;height:2px;background:var(--green-800);border-radius:2px;position:relative}
  .menu-toggle span::before,.menu-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--green-800);border-radius:2px;
  }
  .menu-toggle span::before{top:-6px}
  .menu-toggle span::after{top:6px}
  @media (min-width:1024px){.menu-toggle{display:none}}

  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:min(330px,88vw);
    background:#fff;z-index:90;padding:22px;display:flex;flex-direction:column;gap:18px;
    transform:translateX(102%);transition:transform .28s ease;overflow-y:auto;
    box-shadow:-12px 0 32px rgba(16,36,31,.16);
  }
  .drawer.open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
  .drawer-close{
    width:36px;height:36px;border:1px solid var(--border);border-radius:10px;background:#fff;
    cursor:pointer;font-size:18px;line-height:1;color:var(--text-2);
  }
  .drawer-close:hover{background:var(--sel)}
  .drawer .search-box{display:flex}
  .drawer .search-box input{width:100%}
  .drawer-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--divider);padding-top:12px}
  .drawer-nav a{
    padding:13px 4px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--divider);
    display:flex;align-items:center;justify-content:space-between;
  }
  .drawer-nav a:hover{color:var(--green-800)}
  .drawer-nav a.is-active{color:var(--green-800);font-weight:600}
  .drawer-nav a.is-active::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber)}
  .overlay{
    position:fixed;inset:0;background:rgba(14,33,29,.45);z-index:85;
    opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
  }
  .overlay.open{opacity:1;visibility:visible}

  /* ============ Page head ============ */
  .page-head{background:linear-gradient(180deg,#FFFFFF 0%,#F6F4EF 100%);padding:34px 0 0}
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3)}
  .breadcrumb a{color:var(--text-2)}
  .breadcrumb a:hover{color:var(--green-600)}
  .breadcrumb .sep{color:#C4CEC9}
  .breadcrumb .current{color:var(--text-3)}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;margin-top:18px;
    padding:5px 13px;border-radius:999px;background:var(--sel);color:var(--green-600);
    font-size:12.5px;font-weight:600;letter-spacing:.02em;
  }
  .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--celadon)}
  .page-head h1{
    margin-top:16px;font-size:clamp(25px,3.6vw,40px);line-height:1.35;
    font-weight:700;letter-spacing:.01em;color:var(--green-800);
    max-width:900px;
  }
  .page-head .lead{
    margin-top:14px;max-width:820px;font-size:16px;line-height:1.9;color:var(--text-2);
  }
  .quick-anchors{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
  .quick-anchors a{
    display:inline-flex;align-items:center;gap:8px;padding:8px 15px;
    border:1px solid var(--border);border-radius:999px;background:#fff;
    font-size:13.5px;color:var(--text-2);transition:border-color .15s,color .15s,box-shadow .15s,transform .15s;
  }
  .quick-anchors a:hover{border-color:var(--celadon);color:var(--green-800);transform:translateY(-1px);box-shadow:var(--sh-sm)}
  .head-rule{height:1px;background:var(--divider);margin-top:32px}

  /* ============ Layout ============ */
  .section{padding:56px 0}
  @media (min-width:768px){.section{padding:72px 0}}
  @media (min-width:1024px){.section{padding:92px 0}}
  .layout{display:grid;grid-template-columns:1fr;gap:40px}
  @media (min-width:1024px){.layout{grid-template-columns:minmax(0,9fr) minmax(0,3fr);gap:48px}}

  .split{display:grid;grid-template-columns:1fr;gap:24px;align-items:center}
  @media (min-width:820px){.split{grid-template-columns:45% 55%;gap:36px}}
  .split-media{position:relative;overflow:hidden;border-radius:var(--r-img);box-shadow:var(--sh-sm)}
  .split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);transition:transform .45s ease}
  .split-media:hover img{transform:scale(1.03)}
  @media (min-width:820px){
    .split.reverse .split-media{order:2}
    .split.reverse .split-body{order:1}
  }
  .split-body h2{font-size:clamp(20px,2.4vw,26px);line-height:1.45;font-weight:600;color:var(--green-800);margin-top:14px}
  .split-body p{margin-top:14px;color:var(--text-2);font-size:15.8px;line-height:1.95}
  .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
  .tag{display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:999px;font-size:13px;font-weight:500}
  .tag-do{background:rgba(47,125,90,.10);color:var(--ok)}
  .tag-dont{background:rgba(179,69,59,.09);color:var(--err)}
  .badge{
    display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
    background:var(--sel);color:var(--green-600);font-size:12.5px;font-weight:600;
  }
  .rule{height:1px;border:0;background:var(--divider);margin:52px 0}
  @media (max-width:639px){.rule{margin:36px 0}}

  /* ============ Sidebar ============ */
  .side-col{align-self:start}
  @media (min-width:1024px){.side-col{position:sticky;top:92px}}
  .side-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-sm)}
  .side-card + .side-card{margin-top:20px}
  .side-card h3{font-size:16px;font-weight:600;color:var(--green-800)}
  .side-card .side-note{font-size:13.5px;color:var(--text-3);margin-top:6px}
  .side-list{margin-top:14px}
  .side-list li{display:flex;gap:10px;padding:11px 0;border-bottom:1px dashed var(--divider);font-size:14.5px;line-height:1.65}
  .side-list li:last-child{border-bottom:0;padding-bottom:0}
  .side-list .dot{flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--celadon);margin-top:10px}
  .side-list a{color:var(--text-2);transition:color .15s}
  .side-list a:hover{color:var(--green-600)}
  .side-cta{margin-top:16px}

  .btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--green-600);font-weight:600;font-size:14.5px}
  .btn-link svg{transition:transform .18s ease}
  .btn-link:hover svg{transform:translateX(3px)}
  .btn-link:hover{color:var(--green-800)}

  /* ============ Dark band ============ */
  .dark-band{background:var(--dark-band);color:#E8EFEC;padding:64px 0}
  @media (min-width:1024px){.dark-band{padding:80px 0}}
  .dark-band h2{font-size:clamp(20px,2.4vw,28px);font-weight:600;color:#fff;line-height:1.45}
  .dark-band .band-sub{margin-top:12px;color:#9FB6B0;font-size:15px;max-width:760px;line-height:1.85}
  .stat-grid{display:grid;grid-template-columns:1fr;gap:26px;margin-top:40px}
  @media (min-width:640px){.stat-grid{grid-template-columns:repeat(2,1fr);gap:30px}}
  @media (min-width:1024px){.stat-grid{grid-template-columns:repeat(4,1fr);gap:0}}
  .stat{padding-left:0}
  @media (min-width:1024px){.stat{border-left:1px solid rgba(255,255,255,.14);padding-left:28px}}
  @media (min-width:1024px){.stat:first-child{border-left:0;padding-left:0}}
  .stat-num{font-size:clamp(38px,4.6vw,52px);font-weight:700;color:var(--amber);line-height:1.1;font-variant-numeric:tabular-nums}
  .stat-label{margin-top:10px;font-size:14px;color:#B7C9C4;line-height:1.7}
  .stat-desc{margin-top:6px;font-size:13px;color:#8AA29B;line-height:1.7}

  /* ============ Checklist ============ */
  .section-head{max-width:760px}
  .section-head h2{font-size:clamp(20px,2.6vw,30px);font-weight:600;color:var(--green-800);line-height:1.5}
  .section-head p{margin-top:14px;color:var(--text-2);font-size:15.8px;line-height:1.9}
  .check-grid{display:grid;grid-template-columns:1fr;gap:22px;margin-top:38px}
  @media (min-width:900px){.check-grid{grid-template-columns:1fr 1fr}}
  .check-card{
    background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
    padding:26px;box-shadow:var(--sh-sm);transition:border-color .2s,box-shadow .2s,transform .2s;
  }
  .check-card:hover{border-color:#C9D6D1;box-shadow:var(--sh-lg);transform:translateY(-2px)}
  .check-card h3{font-size:18px;font-weight:600;color:var(--green-800);display:flex;align-items:center;gap:10px}
  .check-card h3 .pill{font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px}
  .pill-ok{background:rgba(47,125,90,.12);color:var(--ok)}
  .pill-warn{background:rgba(179,69,59,.10);color:var(--err)}
  .check-list{margin-top:14px}
  .check-list li{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid var(--divider);font-size:15px;line-height:1.8;color:var(--text-2)}
  .check-list li:last-child{border-bottom:0}
  .check-list svg{flex:0 0 auto;margin-top:6px}

  /* ============ Steps ============ */
  .steps{display:grid;grid-template-columns:1fr;gap:20px;margin-top:38px}
  @media (min-width:640px){.steps{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr)}}
  .step{
    background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
    padding:26px 24px;transition:border-color .2s,box-shadow .2s,transform .2s;
  }
  .step:hover{border-color:#C9D6D1;box-shadow:var(--sh-lg);transform:translateY(-3px)}
  .step-num{font-size:36px;font-weight:700;color:var(--celadon);line-height:1;font-variant-numeric:tabular-nums}
  .step h3{margin-top:14px;font-size:17.5px;font-weight:600;color:var(--green-800)}
  .step p{margin-top:10px;font-size:14.5px;line-height:1.85;color:var(--text-2)}
  .step .step-meta{margin-top:14px;font-size:12.5px;color:var(--text-3)}

  /* ============ FAQ ============ */
  .faq-layout{display:grid;grid-template-columns:1fr;gap:32px}
  @media (min-width:1024px){.faq-layout{grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px}}
  .faq-side{align-self:start}
  @media (min-width:1024px){.faq-side{position:sticky;top:100px}}
  .faq-side h2{font-size:clamp(20px,2.4vw,28px);font-weight:600;color:var(--green-800);line-height:1.5}
  .faq-side p{margin-top:14px;font-size:15.5px;color:var(--text-2);line-height:1.9}
  .faq-side .side-cta{margin-top:22px}
  .faq-list{border-top:1px solid var(--border)}
  .faq-item{border-bottom:1px solid var(--divider)}
  .faq-q{
    width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
    padding:20px 0 20px 16px;background:none;border:0;text-align:left;cursor:pointer;
    font-size:17px;font-weight:600;color:var(--text);line-height:1.6;position:relative;
    transition:color .15s;
  }
  .faq-q::before{
    content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;
    background:transparent;transition:background .2s ease;
  }
  .faq-item.open .faq-q::before{background:var(--green-800)}
  .faq-q:hover{color:var(--green-800)}
  .faq-icon{
    position:relative;flex:0 0 auto;width:22px;height:22px;border-radius:50%;
    background:var(--sel);margin-top:3px;
  }
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
    background:var(--green-800);border-radius:2px;
  }
  .faq-icon::before{width:11px;height:2px}
  .faq-icon::after{width:2px;height:11px;transition:opacity .2s ease}
  .faq-item.open .faq-icon::after{opacity:0}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;padding-left:16px}
  .faq-item.open .faq-a{max-height:520px}
  .faq-a p{margin:0 0 20px;font-size:15.5px;line-height:1.92;color:var(--text-2)}

  /* ============ CTA ============ */
  .cta-band{
    position:relative;color:#fff;padding:64px 0;
    background-image:linear-gradient(90deg,rgba(12,42,36,.95) 0%,rgba(12,42,36,.82) 55%,rgba(12,42,36,.70) 100%),url("/assets/images/backpic/back-2.webp");
    background-size:cover;background-position:center;
  }
  @media (min-width:1024px){.cta-band{padding:84px 0}}
  .cta-inner{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
  @media (min-width:900px){.cta-inner{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px}}
  .cta-inner h2{font-size:clamp(21px,2.8vw,32px);font-weight:700;line-height:1.45;color:#fff}
  .cta-inner p{margin-top:14px;font-size:15.5px;line-height:1.9;color:#CDDCD8;max-width:620px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px}
  @media (min-width:900px){.cta-actions{justify-content:flex-end}}
  .cta-actions .btn{width:100%}
  @media (min-width:520px){.cta-actions .btn{width:auto}}

  /* ============ Footer ============ */
  .site-footer{background:var(--dark-band);color:#C9D6D1;padding:60px 0 24px}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
  @media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}}
  .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
  .footer-brand .brand-name{color:#fff}
  .footer-brand .brand-sub{color:#8FB3A9}
  .footer-desc{font-size:14.5px;line-height:1.85;color:#A8BDB7;margin-bottom:16px}
  .footer-kw{display:inline-block;padding:5px 12px;border-radius:999px;background:rgba(111,179,165,.16);color:#9FD3C6;font-size:12.5px}
  .footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
  .footer-links{display:flex;flex-direction:column;gap:10px}
  .footer-links a{display:inline-block;color:#C9D6D1;font-size:14.5px;transition:color .15s,transform .15s}
  .footer-links a:hover{color:#fff;transform:translateX(2px)}
  .footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14.5px;line-height:1.75}
  .footer-contact strong{color:#fff;font-weight:600}
  .footer-bottom{
    margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    font-size:13px;color:#8FA7A1;
  }
  .footer-bottom a{color:#C9D6D1;text-decoration:underline;text-underline-offset:3px}

  .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* roulang page: category3 */
:root{
    --brand:#123B33;
    --brand-dark:#0C2A24;
    --brand-light:#1E574C;
    --amber:#E0A046;
    --celadon:#6FB3A5;
    --bg:#F6F4EF;
    --surface:#FFFFFF;
    --dark-band:#0E211D;
    --text:#1B2320;
    --text-2:#4A544F;
    --text-3:#8A938E;
    --border:#E6E2D8;
    --divider:#EFEBE2;
    --selected:#EAF1EE;
    --soft:#FAF8F4;
    --ok:#2F7D5A;
    --warn:#B4762A;
    --err:#B3453B;
    --radius-card:14px;
    --radius-img:12px;
    --radius-btn:10px;
    --shadow-1:0 1px 2px rgba(16,36,31,.06), 0 8px 24px rgba(16,36,31,.05);
    --shadow-2:0 10px 28px rgba(16,36,31,.10);
    --space-section:88px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,Helvetica Neue,Arial,sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input,select,textarea{font:inherit;color:inherit;}
  h1,h2,h3,h4,p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px;}

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

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:#fff;border-bottom:1px solid var(--border);
    transition:box-shadow .22s ease;
  }
  .site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,36,31,.08);}
  .header-inner{display:flex;align-items:center;gap:20px;height:68px;}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{display:flex;align-items:center;}
  .brand-name{display:block;font-size:16px;font-weight:700;letter-spacing:.01em;color:var(--brand);line-height:1.25;}
  .brand-sub{display:block;font-size:12px;color:var(--text-3);line-height:1.4;letter-spacing:.04em;}
  .main-nav{display:flex;align-items:center;gap:4px;margin-left:12px;}
  .main-nav a{
    position:relative;padding:10px 12px;border-radius:8px;
    font-size:15px;color:var(--text-2);
    transition:color .15s ease,background .15s ease;
  }
  .main-nav a:hover{color:var(--brand);background:var(--selected);}
  .main-nav a.is-active{color:var(--brand);font-weight:600;}
  .main-nav a.is-active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:1px;height:3px;
    border-radius:2px;background:var(--amber);
  }
  .header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
  .nav-search{position:relative;display:flex;align-items:center;}
  .nav-search svg{position:absolute;left:12px;pointer-events:none;color:var(--text-3);}
  .nav-search input{
    width:216px;height:40px;border:1px solid var(--border);border-radius:var(--radius-btn);
    background:var(--bg);padding:0 12px 0 36px;font-size:14px;
    transition:border-color .15s ease,box-shadow .15s ease,background .15s ease;
  }
  .nav-search input::placeholder{color:var(--text-3);}
  .nav-search input:focus{
    outline:none;background:#fff;border-color:var(--amber);
    box-shadow:0 0 0 2px rgba(224,160,70,.35);
  }

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:40px;padding:0 18px;border:1px solid transparent;
    border-radius:var(--radius-btn);font-size:15px;font-weight:600;
    cursor:pointer;white-space:nowrap;
    transition:transform .15s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
  }
  .btn-primary{background:var(--amber);color:#2A1B05;box-shadow:0 4px 12px rgba(224,160,70,.28);}
  .btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 22px rgba(224,160,70,.34);filter:brightness(1.04);}
  .btn-primary:active{transform:translateY(1px);box-shadow:0 2px 8px rgba(224,160,70,.3);}
  .btn-ghost{background:transparent;border-color:var(--brand-light);color:var(--brand);}
  .btn-ghost:hover{background:var(--selected);color:var(--brand-dark);}
  .btn-dark{background:var(--brand);color:#fff;}
  .btn-dark:hover{background:var(--brand-light);transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-cream{background:#fff;color:var(--brand);}
  .btn-cream:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(0,0,0,.18);}
  .btn-block{width:100%;}
  .link-arrow{
    display:inline-flex;align-items:center;gap:6px;
    font-size:15px;font-weight:600;color:var(--brand);
  }
  .link-arrow svg{transition:transform .2s ease;}
  .link-arrow:hover svg{transform:translateX(3px);}

  .nav-toggle{
    display:none;width:40px;height:40px;align-items:center;justify-content:center;
    background:#fff;border:1px solid var(--border);border-radius:10px;cursor:pointer;
  }
  .nav-toggle:hover{background:var(--selected);}

  .mobile-mask{
    position:fixed;inset:0;background:rgba(14,33,29,.45);
    opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:70;
  }
  .mobile-drawer{
    position:fixed;top:0;right:0;height:100%;width:min(330px,88vw);
    background:#fff;z-index:80;padding:20px;
    display:flex;flex-direction:column;gap:18px;overflow-y:auto;
    transform:translateX(100%);transition:transform .28s ease;
    box-shadow:-12px 0 32px rgba(16,36,31,.14);
  }
  body.drawer-open .mobile-drawer{transform:translateX(0);}
  body.drawer-open .mobile-mask{opacity:1;visibility:visible;}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;}
  .drawer-title{font-size:15px;font-weight:600;color:var(--brand);}
  .drawer-close{
    width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--border);border-radius:10px;background:#fff;cursor:pointer;
  }
  .drawer-close:hover{background:var(--selected);}
  .drawer-search input{width:100%;}
  .drawer-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
  .drawer-nav{display:flex;flex-direction:column;gap:4px;border-top:1px solid var(--divider);padding-top:14px;}
  .drawer-nav a{
    padding:12px 14px;border-radius:10px;font-size:15px;color:var(--text-2);
    border-left:3px solid transparent;
  }
  .drawer-nav a:hover{background:var(--selected);color:var(--brand);}
  .drawer-nav a.is-active{background:var(--selected);color:var(--brand);font-weight:600;border-left-color:var(--brand);}

  @media (max-width:1023px){
    .main-nav{display:none;}
    .nav-search{display:none;}
    .header-actions .btn-ghost{display:none;}
    .nav-toggle{display:inline-flex;}
    .header-actions{margin-left:auto;}
  }
  @media (max-width:520px){
    .brand-sub{display:none;}
    .brand-name{font-size:15px;}
    .header-inner{height:58px;gap:12px;}
    .header-actions .btn-primary{height:36px;padding:0 14px;font-size:14px;}
  }

  /* ---------- 页面标题区 ---------- */
  .page-hero{
    position:relative;overflow:hidden;
    background:linear-gradient(180deg,#F6F4EF 0%,#EAF1EE 100%);
    border-bottom:1px solid var(--border);
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background-image:url(/assets/images/backpic/back-2.webp);
    background-size:cover;background-position:center;opacity:.16;
  }
  .page-hero .container{position:relative;z-index:1;padding-top:40px;padding-bottom:48px;}
  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--text-3);margin-bottom:18px;
  }
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb .sep{color:#C6C0B2;}
  .breadcrumb .current{color:var(--text-2);}
  .page-hero h1{
    font-size:clamp(26px,3.2vw,42px);
    font-weight:700;line-height:1.35;letter-spacing:.01em;color:var(--brand);
    max-width:820px;
  }
  .hero-lead{
    margin-top:14px;max-width:720px;
    font-size:17px;line-height:1.9;color:var(--text-2);
  }
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    font-size:12.5px;font-weight:600;color:var(--brand-light);
    background:rgba(111,179,165,.2);border-radius:999px;padding:5px 13px;
  }
  .hero-search{
    margin-top:26px;display:flex;gap:8px;align-items:center;max-width:580px;
    background:#fff;border:1px solid var(--border);border-radius:14px;
    padding:7px;box-shadow:var(--shadow-1);
  }
  .hero-search input{
    flex:1;min-width:0;height:44px;border:none;background:transparent;
    padding:0 12px;font-size:15px;
  }
  .hero-search input::placeholder{color:var(--text-3);}
  .hero-search input:focus{outline:none;}
  .hero-search .btn{height:44px;}
  @media (max-width:520px){
    .hero-search{flex-direction:column;align-items:stretch;}
    .hero-search .btn{width:100%;}
  }

  /* ---------- 数据条 ---------- */
  .metric-band{background:var(--dark-band);color:#fff;padding:34px 0;}
  .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);}
  .metric-item{padding:4px 28px;border-left:1px solid rgba(255,255,255,.14);}
  .metric-item:first-child{border-left:none;padding-left:0;}
  .metric-value{
    font-size:clamp(26px,3vw,36px);font-weight:700;line-height:1.2;
    color:var(--amber);font-variant-numeric:tabular-nums;letter-spacing:.01em;
  }
  .metric-label{margin-top:6px;font-size:14px;color:#C9D6D1;line-height:1.6;}
  @media (max-width:767px){
    .metric-grid{grid-template-columns:repeat(2,1fr);gap:24px 0;}
    .metric-item{padding:0 18px;}
    .metric-item:nth-child(odd){border-left:none;padding-left:0;}
    .metric-item:nth-child(3),.metric-item:nth-child(4){}
  }

  /* ---------- 主体 ---------- */
  main{display:block;}
  .section{padding:var(--space-section) 0;}
  .section-tight{padding:56px 0;}
  .section-head{max-width:760px;margin-bottom:32px;}
  .section-head h2{
    font-size:clamp(22px,2.4vw,30px);font-weight:600;line-height:1.4;color:var(--text);
  }
  .section-head p{margin-top:12px;color:var(--text-2);font-size:16px;line-height:1.9;}

  .layout-split{
    display:grid;grid-template-columns:280px minmax(0,1fr);
    gap:40px;align-items:start;
  }
  @media (max-width:1023px){
    .layout-split{grid-template-columns:1fr;gap:24px;}
  }

  .anchor-panel{
    position:sticky;top:96px;
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
    box-shadow:var(--shadow-1);padding:20px;
  }
  .anchor-title{
    font-size:12px;letter-spacing:.14em;color:var(--text-3);
    text-transform:uppercase;margin-bottom:12px;
  }
  .anchor-list{display:flex;flex-direction:column;gap:4px;}
  .anchor-link{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:10px 12px;border-radius:10px;font-size:15px;color:var(--text-2);
    border-left:3px solid transparent;
    transition:background .15s ease,color .15s ease,border-color .15s ease;
  }
  .anchor-link:hover{background:var(--selected);color:var(--brand);}
  .anchor-link.is-current{background:var(--selected);color:var(--brand);font-weight:600;border-left-color:var(--brand);}
  .anchor-count{
    font-size:12px;font-variant-numeric:tabular-nums;
    background:rgba(111,179,165,.22);color:var(--brand-light);
    border-radius:999px;padding:2px 9px;min-width:26px;text-align:center;
  }
  .anchor-foot{
    margin-top:18px;padding-top:16px;border-top:1px solid var(--divider);
    font-size:14px;color:var(--text-2);line-height:1.8;
  }
  .anchor-foot a{font-weight:600;color:var(--brand);border-bottom:1px solid rgba(18,59,51,.25);}
  .anchor-foot a:hover{border-bottom-color:var(--brand);}

  @media (max-width:1023px){
    .anchor-panel{position:static;padding:16px;}
    .anchor-title{margin-bottom:10px;}
    .anchor-list{
      flex-direction:row;overflow-x:auto;gap:8px;
      padding-bottom:6px;-webkit-overflow-scrolling:touch;
    }
    .anchor-link{
      flex:0 0 auto;border:1px solid var(--border);border-radius:999px;
      padding:8px 14px;font-size:14px;gap:8px;
    }
    .anchor-link.is-current{border-color:var(--brand);background:var(--selected);}
    .anchor-foot{display:none;}
  }
  .anchor-list::-webkit-scrollbar{height:6px;}
  .anchor-list::-webkit-scrollbar-thumb{background:#D8D3C6;border-radius:999px;}

  /* ---------- FAQ 分组 ---------- */
  .faq-toolbar{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
    gap:12px;margin-bottom:20px;
  }
  .faq-toolbar .count-line{font-size:14px;color:var(--text-3);font-variant-numeric:tabular-nums;}

  .faq-group{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
    box-shadow:var(--shadow-1);padding:0 24px 14px;margin-bottom:24px;
    scroll-margin-top:96px;
  }
  .group-head{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    margin:0 -24px 6px;padding:16px 24px;
    background:var(--soft);border-bottom:1px solid var(--divider);
    border-radius:var(--radius-card) var(--radius-card) 0 0;
  }
  .group-head h2{font-size:18px;font-weight:600;color:var(--text);}
  .group-count{
    font-size:13px;color:var(--brand-light);background:rgba(111,179,165,.2);
    border-radius:999px;padding:3px 12px;font-variant-numeric:tabular-nums;
  }
  .faq-list{display:flex;flex-direction:column;}
  .faq-item{border-bottom:1px solid var(--divider);}
  .faq-item:last-child{border-bottom:none;}
  .faq-item summary{
    list-style:none;cursor:pointer;position:relative;
    padding:18px 46px 18px 16px;
    font-size:17px;font-weight:600;color:var(--text);line-height:1.6;
    border-left:3px solid transparent;
    transition:border-color .2s ease,color .2s ease,background .2s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{
    content:"+";position:absolute;right:14px;top:50%;transform:translateY(-50%);
    font-size:20px;font-weight:400;color:var(--celadon);line-height:1;
    transition:color .2s ease,transform .2s ease;
  }
  .faq-item summary:hover{color:var(--brand);background:rgba(234,241,238,.55);}
  .faq-item[open] summary{border-left-color:var(--brand);color:var(--brand);}
  .faq-item[open] summary::after{content:"−";color:var(--brand);}
  .faq-a{
    padding:0 46px 20px 19px;font-size:16px;line-height:1.9;color:var(--text-2);
  }
  .faq-a p + p{margin-top:10px;}
  .faq-a .hint{
    display:inline-block;margin-top:10px;font-size:13px;
    background:var(--selected);color:var(--brand-light);
    border-radius:999px;padding:3px 12px;
  }
  @media (max-width:640px){
    .faq-group{padding:0 16px 12px;}
    .group-head{margin:0 -16px 4px;padding:14px 16px;}
    .faq-item summary{font-size:16px;padding:16px 40px 16px 12px;}
    .faq-a{padding:0 40px 18px 15px;font-size:15px;}
  }

  .faq-empty{
    display:none;text-align:center;padding:48px 24px;background:#fff;
    border:1px solid var(--border);border-radius:var(--radius-card);
  }
  .faq-empty.is-show{display:block;}
  .faq-empty svg{margin:0 auto 14px;color:var(--celadon);}
  .faq-empty p{color:var(--text-2);font-size:15px;}
  .faq-empty a{display:inline-block;margin-top:8px;font-weight:600;color:var(--brand);}

  /* ---------- 支持区 ---------- */
  .support{
    background:var(--soft);border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  }
  .support-grid{
    display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;
  }
  .support-copy h2{font-size:clamp(22px,2.4vw,30px);font-weight:600;line-height:1.4;color:var(--brand);}
  .support-copy p{margin-top:14px;color:var(--text-2);font-size:16px;line-height:1.9;}
  .support-list{margin-top:20px;display:flex;flex-direction:column;gap:10px;}
  .support-list li{
    display:flex;gap:10px;align-items:flex-start;
    font-size:15px;color:var(--text-2);line-height:1.8;
  }
  .support-list .dot{
    flex:0 0 auto;width:20px;height:20px;border-radius:999px;margin-top:5px;
    display:inline-flex;align-items:center;justify-content:center;
    background:rgba(111,179,165,.22);color:var(--brand-light);
    font-size:12px;font-weight:700;
  }
  .support-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
  .support-figure{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
    box-shadow:var(--shadow-1);overflow:hidden;
  }
  .support-figure img{
    width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:0;
  }
  .support-figure figcaption{
    padding:14px 18px 16px;font-size:14px;color:var(--text-2);line-height:1.75;
    border-top:1px solid var(--divider);
  }
  @media (max-width:1023px){
    .support-grid{grid-template-columns:1fr;gap:28px;}
  }

  /* ---------- 相关分类 ---------- */
  .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
  .related-link{
    display:flex;align-items:center;justify-content:space-between;gap:14px;
    padding:18px 20px;background:#fff;border:1px solid var(--border);
    border-radius:var(--radius-img);font-size:15px;font-weight:600;color:var(--text);
    transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
  }
  .related-link:hover{border-color:#C9D6D1;box-shadow:var(--shadow-2);transform:translateY(-2px);}
  .related-link span{display:block;font-weight:400;font-size:13px;color:var(--text-3);margin-top:2px;line-height:1.6;}
  .related-link svg{flex:0 0 auto;color:var(--brand);transition:transform .2s ease;}
  .related-link:hover svg{transform:translateX(3px);}
  @media (max-width:900px){ .related-grid{grid-template-columns:1fr;} }

  /* ---------- CTA ---------- */
  .cta-band{
    background:var(--brand);border-radius:18px;padding:36px 40px;
    display:flex;align-items:center;justify-content:space-between;gap:28px;
    color:#fff;position:relative;overflow:hidden;
  }
  .cta-band::after{
    content:"";position:absolute;right:-60px;top:-70px;width:220px;height:220px;
    border-radius:999px;border:28px solid rgba(111,179,165,.16);
  }
  .cta-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:600;line-height:1.5;color:#fff;position:relative;z-index:1;}
  .cta-band p{margin-top:10px;font-size:15px;line-height:1.85;color:#C9D6D1;max-width:620px;position:relative;z-index:1;}
  .cta-band .cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;}
  @media (max-width:900px){
    .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px;text-align:left;}
    .cta-band .cta-actions{width:100%;}
    .cta-band .cta-actions .btn{flex:1;}
  }

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--dark-band);color:#C9D6D1;padding:64px 0 0;margin-top:88px;}
  .footer-grid{
    display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;
  }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .site-footer .brand-name{color:#fff;}
  .site-footer .brand-sub{color:#8FA39D;}
  .footer-desc{font-size:14px;line-height:1.9;color:#A8B7B2;max-width:330px;}
  .footer-kw{
    display:inline-block;margin-top:14px;font-size:12px;
    border:1px solid rgba(111,179,165,.4);color:#9ED0C4;
    border-radius:999px;padding:4px 12px;
  }
  .footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
  .footer-links{display:flex;flex-direction:column;gap:10px;}
  .footer-links a{font-size:14px;color:#C9D6D1;transition:color .18s ease,transform .18s ease;display:inline-block;}
  .footer-links a:hover{color:#fff;transform:translateX(2px);}
  .footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;line-height:1.7;}
  .footer-contact strong{color:#fff;font-weight:600;}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.12);
    padding:18px 0 26px;display:flex;flex-wrap:wrap;gap:10px 20px;
    justify-content:space-between;font-size:13px;color:#8FA39D;
  }
  .footer-bottom a{color:#9ED0C4;}
  .footer-bottom a:hover{color:#fff;}
  @media (max-width:1023px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  }
  @media (max-width:640px){
    .footer-grid{grid-template-columns:1fr;}
    .site-footer{padding-top:48px;margin-top:64px;}
  }

  /* 深色区块内滚动条 */
  ::selection{background:rgba(224,160,70,.35);}

/* roulang page: category4 */
:root{
  --ink:#123B33;
  --ink-deep:#0C2A24;
  --ink-soft:#1E574C;
  --amber:#E0A046;
  --celadon:#6FB3A5;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --dark:#0E211D;
  --text:#1B2320;
  --text-2:#4A544F;
  --text-3:#8A938E;
  --border:#E6E2D8;
  --divider:#EFEBE2;
  --select:#EAF1EE;
  --ok:#2F7D5A;
  --warn:#B4762A;
  --err:#B3453B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,36,31,.06), 0 8px 24px rgba(16,36,31,.05);
  --sh-2:0 10px 28px rgba(16,36,31,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
html body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
.num{font-variant-numeric:tabular-nums}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--amber);outline-offset:2px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--border);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 22px rgba(16,36,31,.08)}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px}
.brand-name{display:block;font-size:17px;font-weight:700;color:var(--text);letter-spacing:.01em;line-height:1.2}
.brand-sub{display:block;font-size:11.5px;color:var(--text-3);letter-spacing:.1em;line-height:1.6}
.main-nav{display:flex;align-items:stretch;height:68px;margin-left:6px}
.main-nav a{
  position:relative;display:flex;align-items:center;
  padding:0 14px;font-size:15px;color:var(--text-2);text-decoration:none;
  transition:color .15s ease;
}
.main-nav a:hover{color:var(--ink)}
.main-nav a.active{color:var(--ink);font-weight:600}
.main-nav a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;border-radius:3px;background:var(--amber);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{position:relative;width:228px}
.search-box svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-3);pointer-events:none}
.search-box input{
  width:100%;height:40px;border:1px solid var(--border);border-radius:var(--r-btn);
  background:var(--bg);padding:0 12px 0 36px;font-size:14px;color:var(--text);
  transition:border-color .15s ease,box-shadow .15s ease,background .15s ease;
}
.search-box input::placeholder{color:var(--text-3)}
.search-box input:focus{outline:none;border-color:var(--amber);background:#fff;box-shadow:0 0 0 3px rgba(224,160,70,.28)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:600;line-height:1;text-decoration:none;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .15s ease,box-shadow .15s ease,background .15s ease,color .15s ease,border-color .15s ease;
}
.btn-primary{background:var(--amber);color:#20261F}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 8px 20px rgba(224,160,70,.35);filter:brightness(1.04)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--select)}
.btn-outline{border-color:#C9D6D1;color:var(--ink);background:#fff}
.btn-outline:hover{border-color:var(--ink);background:var(--select)}
.btn-lg{height:46px;padding:0 24px;font-size:15.5px}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--border);border-radius:var(--r-btn);
  background:#fff;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:4px;
  transition:border-color .15s ease,background .15s ease;
}
.nav-toggle:hover{border-color:#C9D6D1;background:var(--select)}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}

.mobile-drawer{
  position:fixed;top:0;right:0;width:min(340px,86vw);height:100%;background:#fff;z-index:90;
  transform:translateX(105%);transition:transform .28s ease;padding:24px;overflow-y:auto;
  box-shadow:-12px 0 34px rgba(16,36,31,.18);
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-title{font-size:15px;font-weight:700;color:var(--ink)}
.drawer-close{width:36px;height:36px;border:1px solid var(--border);border-radius:var(--r-btn);background:#fff;cursor:pointer;color:var(--ink);font-size:18px;line-height:1}
.drawer-search{position:relative;margin-bottom:18px}
.drawer-search input{width:100%;height:44px;border:1px solid var(--border);border-radius:var(--r-btn);background:var(--bg);padding:0 12px 0 38px;font-size:14px}
.drawer-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-3)}
.drawer-actions{display:flex;gap:10px;margin-bottom:22px}
.drawer-actions .btn{flex:1}
.drawer-nav{display:flex;flex-direction:column;gap:2px;border-top:1px solid var(--divider);padding-top:14px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 4px;font-size:15px;color:var(--text-2);text-decoration:none;border-bottom:1px solid var(--divider);
}
.drawer-nav a.active{color:var(--ink);font-weight:600}
.drawer-nav a:hover{color:var(--ink)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,33,29,.45);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.open{opacity:1;visibility:visible}

/* ---------- 页面头部 ---------- */
.page-banner{
  border-bottom:1px solid var(--border);
  padding:52px 0 42px;
  background-image:
    linear-gradient(180deg,rgba(246,244,239,.94) 0%,rgba(234,241,238,.9) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:16px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-2);text-decoration:none;transition:color .15s ease}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb .sep{color:#C6C1B6}
.page-h1{
  font-size:clamp(28px,4.2vw,42px);font-weight:700;line-height:1.35;letter-spacing:.01em;
  color:var(--ink-deep);margin:0 0 14px;max-width:900px;
}
.page-lead{font-size:17px;line-height:1.9;color:var(--text-2);max-width:760px;margin:0 0 22px}
.banner-meta{display:flex;flex-wrap:wrap;gap:10px}
.pill{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;
  border-radius:999px;background:#fff;border:1px solid var(--border);
  font-size:13px;color:var(--ink-soft);
}

/* ---------- 板块通用 ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:88px 0}}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap}
.sec-title{font-size:clamp(22px,2.6vw,30px);font-weight:600;line-height:1.4;color:var(--ink-deep);margin:0 0 10px}
.sec-desc{font-size:15.5px;color:var(--text-2);margin:0;max-width:720px}
.sec-note{font-size:13.5px;color:var(--text-3)}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--select);color:var(--ink-soft);font-size:12.5px;font-weight:600;
}
.divider{height:1px;background:var(--divider);border:0;margin:0}

/* ---------- 推荐资料横幅 ---------- */
.feature-band{
  display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:36px;align-items:center;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.feature-band:hover{border-color:#C9D6D1;box-shadow:var(--sh-2)}
.feature-band__media{overflow:hidden;border-radius:var(--r-img)}
.feature-band__media img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block;transition:transform .3s ease}
.feature-band:hover .feature-band__media img{transform:scale(1.03)}
.band-title{font-size:clamp(20px,2.3vw,26px);font-weight:600;line-height:1.45;color:var(--ink-deep);margin:12px 0 10px}
.band-text{font-size:15.5px;color:var(--text-2);margin:0 0 20px;line-height:1.9}
.band-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;
  color:var(--ink);text-decoration:none;transition:color .15s ease;
}
.text-link .arrow{transition:transform .18s ease;color:var(--amber)}
.text-link:hover .arrow{transform:translateX(3px)}
.text-link:hover{color:var(--ink-soft)}

/* ---------- 筛选标签 ---------- */
.filter-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.filter-tab{
  height:36px;padding:0 18px;border-radius:999px;border:1px solid var(--border);
  background:#fff;color:var(--text-2);font-size:14px;font-weight:500;cursor:pointer;
  transition:background .15s ease,color .15s ease,border-color .15s ease,transform .15s ease;
}
.filter-tab:hover{border-color:#C9D6D1;color:var(--ink)}
.filter-tab.active{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600}
.filter-tab:active{transform:translateY(1px)}

/* ---------- 下载列表 ---------- */
.dl-list{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
}
.dl-row{
  display:grid;grid-template-columns:76px minmax(0,1fr) 108px 104px;
  gap:20px;align-items:center;
  padding:16px 22px;min-height:72px;
  border-bottom:1px solid var(--divider);
  transition:background .18s ease,box-shadow .18s ease;
}
.dl-row:last-child{border-bottom:0}
.dl-row:nth-child(even){background:#FCFAF6}
.dl-row:hover{background:#F1F6F4;box-shadow:inset 3px 0 0 var(--ink)}
.dl-row[hidden]{display:none}
.fmt{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:54px;height:26px;padding:0 8px;border-radius:6px;
  background:#E7F1EE;color:var(--ink-soft);font-size:12px;font-weight:700;letter-spacing:.04em;
}
.dl-info{min-width:0;display:flex;flex-direction:column;gap:2px}
.dl-name{font-size:16px;font-weight:600;color:var(--ink-deep);line-height:1.5}
.dl-desc{font-size:13.5px;color:var(--text-3);line-height:1.6}
.dl-date{font-size:13.5px;color:var(--text-2);text-align:right}
.dl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:36px;padding:0 16px;border-radius:var(--r-btn);
  border:1px solid #C9D6D1;color:var(--ink);background:#fff;
  font-size:14px;font-weight:600;text-decoration:none;
  transition:border-color .15s ease,background .15s ease,transform .15s ease;
}
.dl-btn:hover{border-color:var(--ink);background:var(--select);transform:translateY(-1px)}
.dl-empty{
  margin:20px 0 0;padding:18px 22px;border:1px dashed #CFD8D3;border-radius:var(--r-btn);
  background:#fff;color:var(--text-2);font-size:14.5px;display:flex;align-items:center;gap:10px;
}
.dl-empty[hidden]{display:none}

/* ---------- 说明卡片 ---------- */
.tip-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.tip-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:26px;
  box-shadow:var(--sh-1);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.tip-card:hover{border-color:#C9D6D1;box-shadow:var(--sh-2);transform:translateY(-2px)}
.tip-icon{
  width:42px;height:42px;border-radius:12px;background:var(--select);
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-soft);margin-bottom:16px;
}
.tip-title{font-size:18px;font-weight:600;color:var(--ink-deep);margin:0 0 10px;line-height:1.5}
.tip-text{font-size:15px;color:var(--text-2);margin:0;line-height:1.9}

/* ---------- FAQ ---------- */
.faq-wrap{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:8px 26px;box-shadow:var(--sh-1)}
.faq-item{border-bottom:1px solid var(--divider)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--ink-deep);line-height:1.6;
  transition:color .15s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"＋";font-size:18px;font-weight:400;color:var(--ink-soft);line-height:1;transition:transform .2s ease}
.faq-item[open] summary::after{content:"－"}
.faq-item summary:hover{color:var(--ink-soft)}
.faq-body{padding:0 0 22px;font-size:15.5px;line-height:1.9;color:var(--text-2);max-width:880px}
.faq-item[open] .faq-body{border-left:3px solid var(--ink);padding-left:16px}

/* ---------- 关联分类 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.link-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:#fff;border:1px solid var(--border);border-radius:var(--r-img);
  text-decoration:none;color:var(--ink);transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.link-row:hover{border-color:#C9D6D1;box-shadow:var(--sh-1);transform:translateY(-1px)}
.link-row__title{display:block;font-size:16px;font-weight:600;margin-bottom:4px}
.link-row__desc{display:block;font-size:13.5px;color:var(--text-3);line-height:1.7}
.link-row .arrow{color:var(--amber);flex:0 0 auto;transition:transform .18s ease}
.link-row:hover .arrow{transform:translateX(3px)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--dark);border-radius:18px;padding:44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:240px;height:240px;border-radius:50%;
  border:1px solid rgba(111,179,165,.35);
}
.cta-title{font-size:clamp(20px,2.3vw,26px);font-weight:600;color:#FFFFFF;margin:0 0 10px;line-height:1.5}
.cta-text{font-size:15.5px;color:#B9C9C4;margin:0;max-width:640px;line-height:1.9}
.cta-band .btn{position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#C9D6D1;margin-top:96px;padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.site-footer .brand-name{color:#FFFFFF;font-size:17px}
.site-footer .brand-sub{color:#8FA5A0}
.footer-desc{font-size:14.5px;line-height:1.9;color:#9FB3AC;margin:0 0 18px}
.footer-kw{
  display:inline-block;font-size:12.5px;color:#8FCFC0;
  border:1px solid rgba(111,179,165,.4);border-radius:999px;padding:4px 14px;
}
.footer-col h4{font-size:15px;font-weight:600;color:#FFFFFF;margin:0 0 18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{
  display:inline-block;color:#C9D6D1;font-size:14.5px;text-decoration:none;
  transition:color .15s ease,transform .15s ease;
}
.footer-links a:hover{color:#FFFFFF;transform:translateX(2px)}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14.5px;color:#9FB3AC}
.footer-contact strong{color:#C9D6D1;font-weight:600}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding-top:22px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#8A9C96;
}
.footer-bottom a{color:#8FCFC0;text-decoration:none}
.footer-bottom a:hover{text-decoration:underline}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .search-box{width:190px}
  .main-nav a{padding:0 11px;font-size:14.5px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .search-box{display:none}
  .header-actions .btn-ghost{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:60px}
  .feature-band{grid-template-columns:1fr;gap:22px;padding:20px}
  .tip-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
  .site-footer{margin-top:72px;padding:56px 0 24px}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .page-banner{padding:36px 0 30px}
  .dl-list{border-radius:12px}
  .dl-row{
    grid-template-columns:1fr;
    gap:10px;padding:16px 16px 18px;min-height:0;
  }
  .dl-row:hover{box-shadow:inset 3px 0 0 var(--ink)}
  .dl-row .fmt{justify-self:start}
  .dl-info{gap:4px}
  .dl-name{font-size:16px}
  .dl-date{text-align:left;color:var(--text-3)}
  .dl-btn{width:100%;height:42px}
  .cta-band{padding:30px 22px;border-radius:16px}
  .faq-wrap{padding:6px 18px}
  .faq-item summary{font-size:16px;padding:17px 0}
}
@media (max-width:639px){
  .tip-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;gap:8px}
  .banner-meta .pill{font-size:12.5px}
  .page-lead{font-size:16px}
}
@media (max-width:519px){
  .brand-name{font-size:15.5px}
  .brand-sub{font-size:11px}
  .header-actions .btn-primary{height:36px;padding:0 14px;font-size:13.5px}
  .nav-toggle{width:38px;height:38px}
  .cta-band .btn{width:100%}
}