/* roulang page: index */
:root{
  --ink:#16211E;
  --ink-2:#4A5A55;
  --ink-3:#7C8B86;
  --brand:#17594A;
  --brand-dark:#0F4438;
  --brand-soft:#E6F0EC;
  --accent:#E39A2B;
  --accent-dark:#C8831C;
  --warn:#C1442E;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --dark:#0E2B26;
  --line:#E3DED4;
  --dash:#D8D2C6;
  --light-text:#EAF1EE;
  --light-muted:#A9BEB7;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --r-block:18px;
  --sh:0 1px 2px rgba(14,43,38,.05), 0 6px 18px rgba(14,43,38,.06);
  --sh-hover:0 10px 28px rgba(14,43,38,.12);
  --t:cubic-bezier(.2,.7,.3,1) .35s;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.005em;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .25s var(--t);}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
@media (min-width:1200px){.container{padding-left:32px;padding-right:32px;}}
.section{padding:88px 0;}
.section-sm{padding:64px 0;}
@media (max-width:991px){.section{padding:64px 0;}.section-sm{padding:48px 0;}}
@media (max-width:575px){.section{padding:48px 0;}}
.sec-head{margin-bottom:32px;}
.sec-title{font-size:clamp(24px,2.6vw,34px);line-height:1.32;position:relative;padding-top:18px;}
.sec-title::before{content:"";position:absolute;top:0;left:0;width:40px;height:3px;background:var(--accent);border-radius:2px;}
.sec-lead{color:var(--ink-2);font-size:16px;line-height:1.85;margin-top:14px;max-width:680px;}
.eyebrow{display:inline-block;font-size:13px;color:var(--brand);background:var(--brand-soft);border-radius:var(--r-pill);padding:4px 12px;font-weight:600;letter-spacing:.04em;}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border-radius:var(--r-btn);font-weight:600;font-size:16px;border:1.5px solid transparent;cursor:pointer;transition:background .25s var(--t),color .25s var(--t),transform .25s var(--t),box-shadow .25s var(--t),border-color .25s var(--t);}
.btn-main{background:var(--accent);color:var(--dark);box-shadow:var(--sh);}
.btn-main:hover{background:var(--accent-dark);color:var(--dark);transform:translateY(-1px);box-shadow:var(--sh-hover);}
.btn-main:active{transform:translateY(1px);box-shadow:0 2px 8px rgba(14,43,38,.14);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand);}
.btn-light{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.35);color:var(--light-text);}
.btn-light:hover{background:rgba(255,255,255,.16);color:#fff;}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;color:var(--brand);}
.link-arrow i{transition:transform .25s var(--t);font-size:12px;}
.link-arrow:hover i{transform:translateX(4px);}
.link-arrow:hover{text-decoration:underline;}

/* 导航 */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(247,245,240,.86);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:border-color .25s var(--t),background .25s var(--t);}
.site-header.scrolled{border-bottom-color:var(--line);background:rgba(247,245,240,.96);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px;transition:height .25s var(--t);}
.site-header.scrolled .nav-inner{height:58px;}
.nav-left,.nav-right{display:flex;align-items:center;gap:28px;}
.nav-left{flex:0 0 58%;}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);flex-shrink:0;}
.brand:hover{color:var(--ink);}
.brand-mark{width:36px;height:36px;flex-shrink:0;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em;}
.brand-sub{font-size:11px;color:var(--ink-3);letter-spacing:.06em;font-weight:500;}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:12px;}
.main-nav a{font-size:15px;font-weight:500;color:var(--ink-2);padding:22px 0;position:relative;display:inline-block;}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--t);}
.main-nav a:hover{color:var(--brand);}
.main-nav a.active{color:var(--brand);font-weight:600;}
.main-nav a.active::after{transform:scaleX(1);}
.nav-right{border-left:1px solid var(--line);padding-left:24px;}
.nav-search{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);padding:0 14px;height:40px;}
.nav-search i{color:var(--ink-3);font-size:13px;}
.nav-search input{border:0;outline:0;background:transparent;width:118px;font-size:14px;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;color:var(--brand);align-items:center;justify-content:center;}
@media (max-width:1199px){.main-nav{gap:18px;}.nav-search input{width:92px;}}
@media (max-width:991px){
  .nav-left{flex:1;}
  .main-nav,.nav-search{display:none;}
  .nav-right{border-left:0;padding-left:0;gap:12px;}
  .nav-toggle{display:inline-flex;}
  .nav-cta-desktop{display:none;}
}
.drawer-mask{position:fixed;inset:0;background:rgba(14,43,38,.45);opacity:0;visibility:hidden;transition:opacity .3s var(--t),visibility .3s var(--t);z-index:1040;}
.drawer-mask.show{opacity:1;visibility:visible;}
.drawer{position:fixed;top:0;right:0;width:300px;max-width:86vw;height:100%;background:var(--dark);z-index:1050;transform:translateX(100%);transition:transform .32s var(--t);padding:22px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;}
.drawer.show{transform:translateX(0);}
.drawer-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;}
.drawer-head span{color:var(--light-text);font-weight:700;font-size:16px;}
.drawer-close{background:transparent;border:1px solid rgba(255,255,255,.28);color:var(--light-text);width:38px;height:38px;border-radius:var(--r-btn);}
.drawer a{color:var(--light-text);font-size:16px;padding:14px 12px;border-radius:var(--r-btn);border-left:3px solid transparent;}
.drawer a:hover,.drawer a.active{background:rgba(255,255,255,.07);border-left-color:var(--accent);color:#fff;}
.drawer .btn{margin-top:16px;color:var(--dark);}

/* Hero */
.hero{padding:72px 0 78px;position:relative;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.hero h1{font-size:clamp(30px,4.2vw,48px);line-height:1.28;}
.hero-sub{margin-top:20px;font-size:18px;line-height:1.8;color:var(--ink-2);max-width:540px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-marks{display:flex;flex-wrap:wrap;align-items:center;gap:0;margin-top:36px;padding-top:26px;border-top:1px solid var(--line);}
.hero-mark{padding:0 22px;border-left:1px solid var(--line);}
.hero-mark:first-child{border-left:0;padding-left:0;}
.hero-mark strong{display:block;font-size:24px;color:var(--brand);line-height:1.2;}
.hero-mark span{font-size:13px;color:var(--ink-3);}
.hero-visual{position:relative;}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh);}
.hero-tag{position:absolute;left:18px;bottom:18px;background:rgba(230,240,236,.94);color:var(--brand-dark);font-size:13px;font-weight:600;padding:8px 14px;border-radius:var(--r-pill);box-shadow:var(--sh);}
@media (max-width:991px){
  .hero{padding:44px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-visual{order:2;}
  .hero-visual img{aspect-ratio:16/10;max-height:280px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-mark{padding:0 16px;}
}
@media (max-width:575px){
  .hero-mark{padding:0 12px;}
  .hero-mark strong{font-size:20px;}
}

/* 痛点 */
.pain{background:var(--bg);}
.pain-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.pain-list{border-left:4px solid var(--brand);padding-left:8px;}
.pain-item{display:flex;gap:18px;padding:20px 0;border-bottom:1px dashed var(--dash);}
.pain-item:last-child{border-bottom:0;}
.pain-num{font-size:20px;font-weight:700;color:var(--accent);line-height:1.5;flex:0 0 34px;}
.pain-item h3{font-size:17px;font-weight:600;line-height:1.6;}
.pain-item p{font-size:14px;line-height:1.7;color:var(--ink-2);margin-top:6px;}
@media (max-width:991px){.pain-grid{grid-template-columns:1fr;gap:24px;}.pain-list{padding-left:0;}}

/* 方案 */
.solution-row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;padding:44px 0;border-bottom:1px dashed var(--dash);}
.solution-row:last-child{border-bottom:0;}
.solution-row.reverse .sol-media{order:2;}
.sol-num{font-size:14px;font-weight:700;color:var(--accent);letter-spacing:.14em;}
.sol-body h3{font-size:22px;margin-top:10px;line-height:1.4;}
.sol-body p{color:var(--ink-2);font-size:16px;line-height:1.85;margin-top:14px;}
.sol-points{margin-top:20px;display:flex;flex-direction:column;gap:10px;}
.sol-points li{position:relative;padding-left:20px;font-size:15px;color:var(--ink-2);}
.sol-points li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--brand);}
.sol-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh);transition:transform .35s var(--t);}
.sol-media{overflow:hidden;border-radius:var(--r-img);}
.sol-media:hover img{transform:scale(1.03);}
@media (max-width:991px){
  .solution-row{grid-template-columns:1fr;gap:24px;padding:32px 0;}
  .solution-row.reverse .sol-media{order:0;}
}

/* 成果深色条带 */
.band{position:relative;background:var(--dark);color:var(--light-text);overflow:hidden;border-radius:var(--r-block);}
.band-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center;opacity:.16;}
.band-inner{position:relative;padding:64px 48px;}
.band h2{color:#fff;font-size:clamp(24px,2.6vw,34px);line-height:1.32;max-width:620px;}
.band p{color:var(--light-muted);margin-top:14px;max-width:640px;font-size:16px;}
.band-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:44px;}
.band-stat{padding:0 26px;border-left:1px solid rgba(255,255,255,.14);}
.band-stat:first-child{border-left:0;padding-left:0;}
.band-stat strong{display:block;font-size:36px;font-weight:700;line-height:1.15;background:linear-gradient(90deg,var(--brand-soft),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent;}
.band-stat span{display:block;font-size:13px;color:var(--light-muted);margin-top:8px;}
@media (max-width:991px){.band-inner{padding:48px 26px;}.band-stats{grid-template-columns:repeat(2,1fr);gap:28px 0;}.band-stat{padding:0 18px;}}
@media (max-width:575px){.band-stat strong{font-size:28px;}}

/* 证言 */
.voice-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.voice-col{display:flex;flex-direction:column;gap:24px;}
.voice-col.offset{margin-top:32px;}
.voice-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh);position:relative;transition:transform .35s var(--t),box-shadow .35s var(--t);}
.voice-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);}
.voice-card::before{content:"\201C";position:absolute;top:12px;right:22px;font-size:52px;line-height:1;color:var(--brand-soft);font-family:Georgia,serif;}
.voice-card p{font-size:16px;line-height:1.85;color:var(--ink);position:relative;z-index:1;}
.voice-meta{margin-top:18px;padding-top:14px;border-top:1px dashed var(--dash);font-size:13px;color:var(--ink-3);}
.voice-meta strong{display:block;color:var(--ink);font-size:14px;font-weight:600;}
@media (max-width:767px){.voice-grid{grid-template-columns:1fr;}.voice-col.offset{margin-top:0;}}

/* 资讯 */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:34px;}
.news-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh);display:flex;flex-direction:column;position:relative;transition:transform .35s var(--t),box-shadow .35s var(--t);}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);}
.news-card__cover{display:block;overflow:hidden;}
.news-card__cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--t);}
.news-card:hover .news-card__cover img{transform:scale(1.03);}
.news-card__body{padding:22px;display:flex;flex-direction:column;flex:1;gap:12px;}
.badge-soft{align-self:flex-start;font-size:12px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:var(--r-pill);padding:4px 12px;}
.news-card h3{font-size:17px;line-height:1.5;}
.news-card h3 a{color:var(--ink);}
.news-card h3 a::after{content:"";position:absolute;inset:0;}
.news-card:hover h3 a{color:var(--brand);}
.news-card__desc{font-size:15px;line-height:1.75;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);position:relative;z-index:2;}
.news-grid>.news-card:first-child{grid-column:span 2;}
.news-grid>.news-card:first-child .news-card__cover img{aspect-ratio:21/9;}
.news-grid>.news-card:first-child h3{font-size:21px;}
.empty-state{grid-column:1/-1;text-align:center;padding:56px 24px;background:var(--card);border:1px dashed var(--dash);border-radius:var(--r-card);}
.empty-state i{font-size:26px;color:var(--brand);}
.empty-state p{color:var(--ink-2);margin-top:12px;}
@media (max-width:991px){
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid>.news-card:first-child{grid-column:span 2;}
}
@media (max-width:575px){
  .news-grid{grid-template-columns:1fr;}
  .news-grid>.news-card:first-child{grid-column:span 1;}
  .news-grid>.news-card:first-child .news-card__cover img{aspect-ratio:16/9;}
  .news-grid>.news-card:first-child h3{font-size:18px;}
}

/* FAQ */
.faq-box{background:var(--card);border:1px solid var(--line);border-radius:var(--r-block);box-shadow:var(--sh);overflow:hidden;}
.faq-item{border-left:3px solid transparent;transition:border-color .25s var(--t),background .25s var(--t);}
.faq-item+.faq-item{border-top:1px dashed var(--dash);}
.faq-item[open]{border-left-color:var(--brand);background:#FCFBF8;}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 26px;font-size:17px;font-weight:600;color:var(--ink);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:22px;font-weight:400;color:var(--brand);transition:transform .25s var(--t);flex-shrink:0;}
.faq-item[open] summary::after{content:"\2212";transform:rotate(180deg);}
.faq-answer{padding:0 26px 24px 26px;font-size:15px;line-height:1.85;color:var(--ink-2);}
@media (max-width:575px){.faq-item summary{padding:18px;font-size:16px;}.faq-answer{padding:0 18px 20px;}}

/* CTA 区 */
.cta-wrap{background:var(--dark);border-radius:var(--r-block);overflow:hidden;position:relative;}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;padding:56px 48px;position:relative;}
.cta-left h2{color:#fff;font-size:clamp(24px,2.4vw,32px);line-height:1.35;}
.cta-left p{color:var(--light-muted);margin-top:16px;font-size:16px;}
.cta-safe{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.cta-safe li{color:var(--light-text);font-size:15px;display:flex;gap:10px;align-items:flex-start;}
.cta-safe i{color:var(--accent);margin-top:5px;font-size:13px;}
.cta-contact{margin-top:28px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);color:var(--light-muted);font-size:14px;line-height:1.9;}
.cta-contact strong{color:#fff;font-weight:600;}
.form-card{background:#fff;border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-hover);}
.form-card h3{font-size:19px;margin-bottom:6px;}
.form-card .form-hint{font-size:13px;color:var(--ink-3);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px;}
.field .req{color:var(--accent);}
.field input,.field select,.field textarea{width:100%;height:46px;border:1px solid #CFC9BC;border-radius:var(--r-btn);padding:0 14px;background:#fff;transition:border-color .25s var(--t),box-shadow .25s var(--t);}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft);}
.form-card .btn{width:100%;margin-top:6px;}
.form-msg{margin-top:14px;font-size:14px;color:var(--brand);display:none;}
.form-msg.show{display:block;}
@media (max-width:991px){
  .cta-grid{grid-template-columns:1fr;gap:30px;padding:40px 24px;}
  .form-card{order:-1;}
}

/* 页脚 */
.site-footer{background:var(--dark);color:var(--light-muted);margin-top:88px;position:relative;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--brand),var(--accent));}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;}
.footer-brand svg{width:32px;height:32px;}
.footer-brand span{font-size:17px;font-weight:700;color:#fff;}
.footer-desc{font-size:14px;line-height:1.9;margin-top:18px;max-width:320px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{color:var(--light-muted);font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-contact{font-size:14px;line-height:1.95;}
.footer-contact strong{color:#fff;font-weight:600;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:12px;color:var(--ink-3);}
.footer-bottom a{color:var(--ink-3);}
.footer-bottom a:hover{color:var(--light-text);}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px;}}
@media (max-width:575px){.footer-grid{grid-template-columns:1fr;}}

/* roulang page: article */
:root{
  --ink:#16211E;
  --ink-2:#4A5A55;
  --ink-3:#7C8B86;
  --brand:#17594A;
  --brand-dark:#0F4438;
  --brand-soft:#E6F0EC;
  --accent:#E39A2B;
  --accent-dark:#C8831C;
  --warn:#C1442E;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --dark:#0E2B26;
  --dark-2:#123731;
  --line:#E3DED4;
  --dash:#D8D2C6;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --r-pill:999px;
  --r-block:18px;
  --sh-1:0 1px 2px rgba(14,43,38,.05), 0 6px 18px rgba(14,43,38,.06);
  --sh-2:0 10px 28px rgba(14,43,38,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .25s var(--ease),border-color .25s var(--ease)}
a:hover{color:var(--brand-dark)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(min-width:1200px){.container{padding:0 32px}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1050;
  background:rgba(247,245,240,.88);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.site-header.is-stuck{border-bottom:1px solid var(--line);background:rgba(247,245,240,.96)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:var(--nav-h);transition:height .25s var(--ease)}
.site-header.is-stuck .nav-inner{height:58px}
.nav-left{display:flex;align-items:center;gap:30px;min-width:0}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{width:40px;height:40px;flex:0 0 40px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.01em;color:var(--ink)}
.brand-sub{font-size:12px;color:var(--ink-3);letter-spacing:.02em}
.main-nav{display:flex;align-items:center;gap:26px}
.main-nav a{
  position:relative;
  font-size:15px;
  color:var(--ink-2);
  padding:5px 0;
  border-bottom:2px solid transparent;
}
.main-nav a:hover{color:var(--brand)}
.main-nav a.active{color:var(--brand);border-bottom-color:var(--brand);font-weight:600}
.nav-right{display:flex;align-items:center;gap:14px}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:0 16px;height:40px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.nav-search i{font-size:13px;color:var(--ink-3)}
.nav-search input{border:0;outline:0;background:transparent;width:140px;font-size:14px}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;color:var(--ink);cursor:pointer;
}
.nav-toggle:hover{background:var(--brand-soft);border-color:var(--brand)}

/* 按钮 */
.btn{border-radius:var(--r-btn);font-weight:600;border:0;transition:all .25s var(--ease);display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;line-height:1.2}
.btn-main{background:var(--accent);color:#0E2B26;padding:12px 22px}
.btn-main:hover{background:var(--accent-dark);color:#0E2B26;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{transform:translateY(1px);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;border:1.5px solid var(--brand);color:var(--brand);padding:11px 21px}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(14,43,38,.45);opacity:0;visibility:hidden;transition:.3s var(--ease);z-index:1070}
.drawer-mask.is-open{opacity:1;visibility:visible}
.site-drawer{
  position:fixed;top:0;right:0;height:100%;width:300px;max-width:86vw;
  background:var(--dark);color:#EAF1EE;z-index:1080;
  transform:translateX(100%);transition:transform .3s var(--ease);
  padding:22px;overflow-y:auto;
}
.site-drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-head span{font-size:14px;color:#A9BEB7}
.drawer-close{width:40px;height:40px;border:1px solid rgba(255,255,255,.18);border-radius:var(--r-btn);background:transparent;color:#EAF1EE;cursor:pointer}
.drawer-close:hover{background:rgba(255,255,255,.08)}
.site-drawer nav a{display:block;padding:14px 0 14px 0;color:#EAF1EE;border-bottom:1px solid rgba(255,255,255,.1);font-size:16px}
.site-drawer nav a:hover{color:#F0C479}
.site-drawer nav a.active{padding-left:12px;border-left:3px solid var(--accent);color:#F0C479}
.drawer-cta{margin-top:22px}

/* ---------- 文章头部 ---------- */
.page-head{
  position:relative;
  background-color:var(--dark);
  background-image:linear-gradient(90deg,rgba(14,43,38,.94),rgba(14,43,38,.82)),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  color:#EAF1EE;
  padding:38px 0 54px;
}
.breadcrumb-trail{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(234,241,238,.7)}
.breadcrumb-trail a{color:rgba(234,241,238,.7);border-bottom:1px solid transparent}
.breadcrumb-trail a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.6)}
.breadcrumb-trail .sep{opacity:.5}
.breadcrumb-trail .current{color:var(--accent);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-title{
  margin:22px 0 20px;
  font-size:clamp(26px,4vw,42px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:.01em;
  color:#F4F9F7;
  max-width:900px;
}
.page-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:rgba(234,241,238,.75)}
.page-meta .badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(227,154,43,.18);color:#F0C479;
  border-radius:var(--r-pill);padding:4px 12px;font-size:13px;font-weight:600;
}
.page-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(234,241,238,.4)}

/* ---------- 文章布局 ---------- */
.section{padding:56px 0 72px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:44px;max-width:1080px;margin:0 auto}
.article-main{min-width:0}
.article-body{
  background:transparent;
  max-width:720px;
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  overflow-wrap:anywhere;
}
.article-body p{margin:0 0 1.3em;color:#25312D}
.article-body h2{
  font-size:clamp(21px,2.3vw,27px);
  line-height:1.4;
  font-weight:700;
  color:var(--ink);
  margin:2em 0 .8em;
  padding-left:14px;
  border-left:4px solid var(--brand);
  scroll-margin-top:96px;
}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;margin:1.7em 0 .6em;color:var(--ink)}
.article-body h4{font-size:17px;font-weight:600;margin:1.4em 0 .5em}
.article-body ul{list-style:disc;padding-left:1.35em;margin:0 0 1.3em}
.article-body ol{list-style:decimal;padding-left:1.45em;margin:0 0 1.3em}
.article-body li{margin-bottom:.45em;line-height:1.9}
.article-body li::marker{color:var(--brand)}
.article-body img{border-radius:var(--r-img);margin:1.6em auto;max-width:100%;height:auto}
.article-body figure{margin:1.8em 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px}
.article-body blockquote{
  background:var(--bg);
  border-left:4px solid var(--accent);
  border-radius:0 var(--r-img) var(--r-img) 0;
  padding:18px 22px;
  margin:1.6em 0;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(23,89,74,.35)}
.article-body a:hover{color:var(--brand-dark);border-bottom-color:var(--brand-dark)}
.article-body table{
  display:block;
  width:100%;
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--r-img);
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:15px;
}
.article-body thead th{background:var(--brand-soft);color:var(--brand-dark);font-weight:600}
.article-body th,.article-body td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.article-body tbody tr:nth-child(even){background:#FBF9F5}
.article-body code{background:#F1EEE7;border-radius:6px;padding:2px 6px;font-size:14px}
.article-body pre{background:var(--dark);color:#EAF1EE;border-radius:var(--r-img);padding:18px;overflow-x:auto;margin:1.6em 0;font-size:14px}

/* 顶部折叠目录（<1200） */
.toc-mobile{
  max-width:720px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:14px 18px;
  margin-bottom:30px;
}
.toc-mobile summary{cursor:pointer;font-size:15px;font-weight:600;color:var(--brand);list-style:none}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary::before{content:"\f0c9";font-family:"Font Awesome 6 Free";font-weight:900;margin-right:8px;font-size:13px}
.toc-mobile ol{margin:12px 0 0;padding-left:0;counter-reset:toc}
.toc-mobile li{margin-bottom:6px;font-size:14px;line-height:1.7}
.toc-mobile a{color:var(--ink-2)}
.toc-mobile a:hover{color:var(--brand)}

/* 侧栏 */
.article-side{display:none}
.side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:20px;
  margin-bottom:20px;
}
.side-card h3{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--accent);font-size:13px}
.toc-list a{
  display:block;
  font-size:14px;
  line-height:1.65;
  color:var(--ink-2);
  padding:7px 0 7px 12px;
  border-left:2px solid transparent;
  transition:all .25s var(--ease);
}
.toc-list a:hover{color:var(--brand);background:var(--brand-soft);border-radius:0 8px 8px 0}
.toc-list a.is-active{color:var(--brand);font-weight:600;border-left-color:var(--brand);background:var(--brand-soft);border-radius:0 8px 8px 0}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;
  font-size:14px;color:var(--ink-2);
  padding:10px 0;border-bottom:1px dashed var(--dash);
}
.side-links a:last-child{border-bottom:0}
.side-links a:hover{color:var(--brand)}
.side-links a i{font-size:12px;color:var(--ink-3);transition:transform .25s var(--ease)}
.side-links a:hover i{transform:translateX(4px);color:var(--accent)}
.side-sticky{position:sticky;top:calc(var(--nav-h) + 20px)}

/* 空态 */
.article-empty{
  max-width:720px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-block);
  box-shadow:var(--sh-1);
  padding:44px 32px;
  text-align:center;
}
.article-empty i{font-size:34px;color:var(--accent);margin-bottom:16px;display:block}
.article-empty h2{font-size:22px;font-weight:700;margin-bottom:10px}
.article-empty p{font-size:15px;color:var(--ink-2);line-height:1.85;margin-bottom:22px}

/* 文末 */
.article-foot{max-width:720px;margin-top:44px}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding-top:26px;border-top:1px dashed var(--dash)}
.tag-row .label{font-size:14px;color:var(--ink-3)}
.tag{
  display:inline-flex;align-items:center;
  background:var(--brand-soft);color:var(--brand-dark);
  border-radius:var(--r-pill);
  padding:5px 14px;font-size:13px;font-weight:600;
}
.tag:hover{background:#D6E7E0;color:var(--brand-dark)}
.related-title{display:flex;align-items:center;justify-content:space-between;margin:42px 0 20px}
.related-title h2{font-size:20px;font-weight:700;position:relative;padding-left:14px}
.related-title h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:18px;border-radius:2px;background:var(--brand)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px 22px 22px}
.card-body .badge{
  display:inline-block;background:var(--brand-soft);color:var(--brand-dark);
  border-radius:var(--r-pill);padding:3px 12px;font-size:12px;font-weight:600;margin-bottom:10px;
}
.card-body h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px}
.card-body h3 a{color:var(--ink)}
.card-body h3 a::after{content:"";position:absolute;inset:0}
.card-body h3 a:hover{color:var(--brand)}
.card-body p{font-size:14.5px;line-height:1.75;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-size:13px;color:var(--ink-3)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.text-link i{transition:transform .25s var(--ease)}
.text-link:hover i{transform:translateX(4px)}
.back-row{margin-top:34px;display:flex;flex-wrap:wrap;gap:14px}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--dark);
  color:#EAF1EE;
  padding:64px 0;
  border-radius:0;
}
.cta-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:start}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);line-height:1.4;font-weight:700;margin-bottom:16px;color:#F4F9F7}
.cta-band .lead{font-size:16px;color:#A9BEB7;line-height:1.85;margin-bottom:22px;max-width:520px}
.cta-points li{display:flex;gap:12px;align-items:flex-start;margin-bottom:12px;font-size:15px;color:#DCE8E4}
.cta-points i{color:var(--accent);margin-top:5px;font-size:13px}
.cta-contact{margin-top:22px;font-size:14px;color:#A9BEB7;display:flex;flex-direction:column;gap:6px}
.form-card{background:#fff;border-radius:var(--r-block);padding:26px;box-shadow:var(--sh-2);color:var(--ink)}
.form-card h3{font-size:18px;font-weight:700;margin-bottom:6px}
.form-card .tip{font-size:13px;color:var(--ink-3);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px}
.field .req{color:var(--accent)}
.field input,.field textarea{
  width:100%;border:1px solid #CFC9BC;border-radius:var(--r-input);
  padding:11px 14px;font-size:15px;background:#fff;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.field input{height:46px}
.field textarea{min-height:104px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{outline:0;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.form-note{margin-top:14px;font-size:13px;color:var(--brand);min-height:20px}
.form-note.error{color:var(--warn)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#EAF1EE;position:relative;padding-top:58px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--brand),var(--accent))}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#F4F9F7;margin-bottom:16px}
.footer-brand svg{width:38px;height:38px}
.footer-desc{font-size:14px;line-height:1.85;color:#A9BEB7;max-width:360px}
.footer-contact{font-size:14px;line-height:2;color:#A9BEB7}
.footer-contact strong{color:#DCE8E4;font-weight:600}
.footer-col h4{font-size:15px;font-weight:700;color:#F4F9F7;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:#A9BEB7}
.footer-col a:hover{color:#F0C479}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:18px 0 26px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:12.5px;color:#7E948D;
}

/* ---------- 响应式 ---------- */
@media (min-width:992px){
  .article-layout{gap:48px}
}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 268px}
  .article-side{display:block}
  .toc-mobile{display:none}
}
@media (max-width:1199px){
  .article-body{max-width:100%}
  .article-foot{max-width:100%}
  .toc-mobile{max-width:100%}
}
@media (max-width:991px){
  .main-nav,.nav-search,.nav-cta-desktop{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-left{gap:16px}
  .section{padding:44px 0 56px}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:575px){
  .container{padding:0 18px}
  .page-head{padding:28px 0 40px}
  .page-title{margin:16px 0 16px}
  .brand-sub{display:none}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .article-body{font-size:16.5px}
  .article-body h2{font-size:21px}
  .article-empty{padding:34px 20px}
  .form-card{padding:20px}
  .article-empty .btn,.back-row .btn{width:100%}
  .back-row{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --ink:#16211E;
  --text-2:#4A5A55;
  --text-3:#7C8B86;
  --brand:#17594A;
  --brand-dark:#0F4438;
  --brand-light:#E6F0EC;
  --accent:#E39A2B;
  --accent-dark:#C8831C;
  --warn:#C1442E;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --dark:#0E2B26;
  --dark-text:#EAF1EE;
  --dark-sub:#A9BEB7;
  --border:#E3DED4;
  --dash:#D8D2C6;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-block:18px;
  --shadow-sm:0 1px 2px rgba(14,43,38,.05), 0 6px 18px rgba(14,43,38,.06);
  --shadow-lg:0 10px 28px rgba(14,43,38,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:var(--brand-dark);}
button,input{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
@media (min-width:1200px){.container{padding-left:32px;padding-right:32px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .25s var(--ease),background-color .25s var(--ease),box-shadow .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn i{font-size:14px;}
.btn-main{background:var(--accent);color:#0E2B26;border-color:var(--accent);}
.btn-main:hover{background:var(--accent-dark);border-color:var(--accent-dark);color:#0E2B26;transform:translateY(-1px);box-shadow:var(--shadow-lg);}
.btn-main:active{transform:translateY(0);box-shadow:0 1px 2px rgba(14,43,38,.08);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand-dark);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.link-more i{transition:transform .25s var(--ease);font-size:12px;}
.link-more:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:4px;}
.link-more:hover i{transform:translateX(4px);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,245,240,.9);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.scrolled{border-bottom-color:var(--border);box-shadow:0 4px 16px rgba(14,43,38,.05);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;transition:height .25s var(--ease);}
.site-header.scrolled .nav-inner{height:58px;}
.nav-left{display:flex;align-items:center;gap:30px;flex:1 1 auto;min-width:0;}
.nav-right{display:flex;align-items:center;gap:16px;border-left:1px solid var(--border);padding-left:24px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:38px;height:38px;flex-shrink:0;display:block;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.01em;}
.brand-sub{font-size:12px;color:var(--text-3);letter-spacing:.02em;}
.main-nav{display:flex;align-items:center;gap:26px;}
.main-nav a{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;font-weight:500;
  transition:color .25s var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);
}
.main-nav a:hover{color:var(--brand);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--brand);font-weight:600;}
.main-nav a.active::after{transform:scaleX(1);}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--border);border-radius:9px;
  height:40px;padding:0 14px;width:186px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.nav-search i{color:var(--text-3);font-size:13px;}
.nav-search input{border:0;outline:0;background:transparent;width:100%;font-size:14px;color:var(--ink);}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--border);
  background:#fff;color:var(--brand);font-size:17px;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{background:var(--brand-light);}

/* ---------- 抽屉导航 ---------- */
.drawer-overlay{
  position:fixed;inset:0;background:rgba(14,43,38,.45);opacity:0;visibility:hidden;
  transition:opacity .3s var(--ease),visibility .3s var(--ease);z-index:1060;
}
.drawer-overlay.open{opacity:1;visibility:visible;}
.site-drawer{
  position:fixed;top:0;right:0;width:300px;max-width:86vw;height:100%;
  background:var(--dark);z-index:1070;transform:translateX(100%);
  transition:transform .32s var(--ease);display:flex;flex-direction:column;
  padding:20px;overflow-y:auto;
}
.site-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.14);}
.drawer-title{color:var(--dark-text);font-size:16px;font-weight:700;}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.18);background:transparent;color:var(--dark-text);font-size:16px;cursor:pointer;}
.drawer-close:hover{background:rgba(255,255,255,.08);}
.drawer-nav{display:flex;flex-direction:column;margin:16px 0 auto;}
.drawer-nav a{
  color:var(--dark-text);font-size:16px;padding:14px 12px;border-radius:10px;
  border-left:3px solid transparent;transition:background-color .25s var(--ease),border-color .25s var(--ease);
}
.drawer-nav a:hover{background:rgba(255,255,255,.07);}
.drawer-nav a.active{border-left-color:var(--accent);background:rgba(255,255,255,.07);font-weight:600;}
.drawer-cta{margin-top:24px;width:100%;}

/* ---------- 面包屑 ---------- */
.crumb{padding:22px 0 0;font-size:13px;color:var(--text-3);}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand);}
.crumb span.sep{margin:0 8px;color:var(--dash);}
.crumb .current{color:var(--brand);}

/* ---------- Hero ---------- */
.hero{padding:34px 0 64px;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-light);border-radius:999px;padding:6px 14px;margin-bottom:20px;
}
.hero-tag i{font-size:12px;color:var(--accent-dark);}
.hero h1{
  font-size:clamp(30px,4.2vw,46px);line-height:1.28;font-weight:700;letter-spacing:.01em;color:var(--ink);
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--text-2);margin-top:20px;max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:0;margin-top:36px;padding-top:26px;border-top:1px solid var(--border);}
.hero-fact{padding-right:28px;margin-right:28px;border-right:1px solid var(--border);}
.hero-fact:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-fact b{display:block;font-size:24px;font-weight:700;color:var(--brand);line-height:1.2;}
.hero-fact span{font-size:13px;color:var(--text-3);}
.hero-visual{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--shadow-sm);aspect-ratio:4/3;background:var(--brand-light);}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-badge{
  position:absolute;left:16px;bottom:16px;
  background:rgba(230,240,236,.92);color:var(--brand-dark);
  font-size:13px;font-weight:600;border-radius:999px;padding:8px 16px;
  display:inline-flex;align-items:center;gap:8px;
}
.hero-badge i{color:var(--accent-dark);font-size:12px;}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:36px;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--accent-dark);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);line-height:1.32;font-weight:700;color:var(--ink);position:relative;padding-top:16px;
}
.section-head h2::before{content:"";position:absolute;top:0;left:0;width:40px;height:3px;border-radius:3px;background:var(--accent);}
.section-head p{font-size:16px;color:var(--text-2);margin-top:14px;max-width:720px;}

/* ---------- 指南布局 ---------- */
.guide-wrap{padding:56px 0 24px;}
.guide-grid{display:grid;grid-template-columns:3fr 9fr;gap:48px;align-items:start;}
.toc-card{
  position:sticky;top:96px;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-sm);
}
.toc-title{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:14px;padding-left:10px;border-left:3px solid var(--accent);}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:var(--text-2);padding:9px 10px;border-radius:9px;
  border-left:3px solid transparent;line-height:1.6;
  transition:background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.toc-list a em{font-style:normal;color:var(--dash);font-weight:700;font-size:12px;line-height:1.7;}
.toc-list a:hover{background:var(--brand-light);color:var(--brand);}
.toc-list a.active{background:var(--brand-light);color:var(--brand-dark);border-left-color:var(--brand);font-weight:600;}
.toc-list a.active em{color:var(--brand);}
.toc-foot{margin-top:18px;padding-top:16px;border-top:1px dashed var(--dash);font-size:13px;color:var(--text-3);line-height:1.7;}

.guide-body{max-width:760px;}
.guide-section{padding-bottom:44px;margin-bottom:44px;border-bottom:1px dashed var(--dash);}
.guide-section:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0;}
.guide-section h2{
  font-size:clamp(22px,2.2vw,28px);line-height:1.4;font-weight:700;color:var(--ink);
  border-left:4px solid var(--brand);padding-left:16px;margin-bottom:20px;
}
.guide-section h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--ink);margin:28px 0 12px;}
.guide-section p{font-size:16.5px;line-height:1.9;color:var(--text-2);margin-bottom:18px;}
.guide-section p strong{color:var(--ink);font-weight:600;}
.guide-figure{margin:24px 0;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--border);}
.guide-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.guide-figure figcaption{font-size:13px;color:var(--text-3);padding:10px 14px;background:#fff;}

.point-list{display:flex;flex-direction:column;gap:12px;margin:20px 0 24px;}
.point-list li{display:flex;gap:12px;font-size:16px;line-height:1.8;color:var(--text-2);}
.point-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:11px;border-radius:2px;background:var(--brand);
}
.point-list li b{color:var(--ink);font-weight:600;}

.step-list{counter-reset:step;display:flex;flex-direction:column;gap:18px;margin:22px 0 8px;}
.step-list li{
  position:relative;background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  padding:20px 22px 20px 60px;box-shadow:var(--shadow-sm);
}
.step-list li::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;left:20px;top:20px;font-size:16px;font-weight:700;color:var(--accent-dark);
}
.step-list li b{display:block;font-size:16px;color:var(--ink);font-weight:600;margin-bottom:6px;}
.step-list li span{font-size:15px;line-height:1.8;color:var(--text-2);}

.note-box{
  background:#fff;border:1px solid var(--border);border-left:4px solid var(--warn);
  border-radius:12px;padding:18px 20px;margin:22px 0;
}
.note-box b{display:block;font-size:15px;color:var(--warn);margin-bottom:8px;}
.note-box p{font-size:15px;line-height:1.8;color:var(--text-2);margin:0;}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.scene-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow-sm);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);}
.scene-icon{
  width:46px;height:46px;border-radius:12px;background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
}
.scene-card h3{font-size:19px;font-weight:600;color:var(--ink);margin-bottom:10px;}
.scene-card p{font-size:15px;line-height:1.8;color:var(--text-2);}
.scene-card .tag{
  display:inline-block;margin-top:14px;font-size:12.5px;font-weight:600;color:var(--brand);
  background:var(--brand-light);border-radius:999px;padding:4px 12px;
}

/* ---------- 阶段流 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.flow-item{position:relative;background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-sm);}
.flow-item .num{font-size:26px;font-weight:700;color:var(--accent);line-height:1;margin-bottom:14px;display:block;}
.flow-item h3{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.flow-item p{font-size:14.5px;line-height:1.8;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-box{background:var(--card);border:1px solid var(--border);border-radius:var(--r-block);overflow:hidden;box-shadow:var(--shadow-sm);}
.faq-item{border-bottom:1px dashed var(--dash);}
.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:16px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink);
  border-left:3px solid transparent;transition:background-color .25s var(--ease),border-color .25s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:#FBFAF7;}
.faq-item[open] summary{border-left-color:var(--brand);background:#FBFAF7;}
.faq-item summary .ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:12px;
  transition:transform .25s var(--ease),background-color .25s var(--ease),color .25s var(--ease);
}
.faq-item[open] summary .ico{transform:rotate(180deg);background:var(--brand);color:#fff;}
.faq-answer{padding:0 24px 22px 24px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--dark);border-radius:var(--r-block);padding:48px 44px;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(227,154,43,.22),transparent 68%);
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:center;}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);line-height:1.4;color:var(--dark-text);font-weight:700;}
.cta-band p{font-size:15.5px;line-height:1.85;color:var(--dark-sub);margin-top:14px;max-width:560px;}
.cta-list{display:flex;flex-direction:column;gap:10px;margin-top:20px;}
.cta-list li{display:flex;gap:10px;font-size:15px;color:var(--dark-sub);}
.cta-list li i{color:var(--accent);font-size:13px;margin-top:6px;}
.cta-actions{display:flex;flex-direction:column;gap:14px;}
.cta-note{font-size:13px;color:var(--dark-sub);}
.cta-note a{color:var(--accent);}

/* ---------- 相关推荐 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rec-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.rec-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);}
.rec-media{aspect-ratio:16/9;overflow:hidden;background:var(--brand-light);}
.rec-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.rec-card:hover .rec-media img{transform:scale(1.03);}
.rec-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.rec-badge{align-self:flex-start;font-size:12.5px;font-weight:600;color:var(--brand);background:var(--brand-light);border-radius:999px;padding:4px 12px;margin-bottom:12px;}
.rec-body h3{font-size:17.5px;line-height:1.5;font-weight:600;color:var(--ink);margin-bottom:10px;}
.rec-body p{font-size:14.5px;line-height:1.75;color:var(--text-2);margin-bottom:16px;}
.rec-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.rec-foot .time{font-size:13px;color:var(--text-3);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--dark);color:var(--dark-sub);margin-top:80px;
  border-top:3px solid transparent;
  background-image:linear-gradient(var(--dark),var(--dark)),linear-gradient(90deg,var(--brand),var(--accent));
  background-origin:border-box;background-clip:padding-box,border-box;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand svg{width:36px;height:36px;}
.footer-brand span{font-size:17px;font-weight:700;color:var(--dark-text);}
.footer-desc{font-size:14.5px;line-height:1.9;color:var(--dark-sub);max-width:380px;}
.footer-contact{font-size:14px;line-height:1.9;color:var(--dark-sub);}
.footer-contact strong{color:var(--dark-text);font-weight:600;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--dark-text);margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--dark-sub);}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;font-size:12.5px;color:var(--dark-sub);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-search{width:150px;}
  .main-nav{gap:20px;}
  .guide-grid{grid-template-columns:1fr;gap:0;}
  .toc-card{position:static;margin-bottom:32px;}
  .toc-list{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .toc-list a{border-left:0;border:1px solid var(--border);padding:8px 12px;}
  .toc-list a.active{border-color:var(--brand);}
  .toc-foot{display:none;}
  .guide-body{max-width:100%;}
}
@media (max-width:991px){
  .nav-inner{height:56px;}
  .site-header.scrolled .nav-inner{height:56px;}
  .main-nav{display:none;}
  .nav-search{display:none;}
  .nav-right{border-left:0;padding-left:0;}
  .nav-toggle{display:inline-flex;}
  .nav-cta-desktop{display:none;}
  .hero{padding:28px 0 48px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-visual{aspect-ratio:16/10;max-height:340px;}
  .hero h1{font-size:32px;}
  .section{padding:56px 0;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{padding:36px 28px;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px;}
}
@media (max-width:575px){
  .container{padding-left:20px;padding-right:20px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .hero-facts{flex-direction:column;gap:14px;}
  .hero-fact{border-right:0;padding-right:0;margin-right:0;padding-bottom:12px;border-bottom:1px dashed var(--dash);}
  .hero-fact:last-child{border-bottom:0;padding-bottom:0;}
  .hero-visual{aspect-ratio:4/3;max-height:280px;}
  .section{padding:48px 0;}
  .scene-grid{grid-template-columns:1fr;gap:18px;}
  .flow{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .faq-item summary{font-size:15.5px;padding:16px 18px;}
  .faq-answer{padding:0 18px 18px;}
  .guide-section p{font-size:16px;}
  .cta-band{border-radius:14px;}
}

/* roulang page: category2 */
:root{
  --ink:#16211E;
  --brand:#17594A;
  --brand-dark:#0F4438;
  --brand-soft:#E6F0EC;
  --accent:#E39A2B;
  --accent-dark:#C8831C;
  --warn:#C1442E;
  --text:#16211E;
  --text-sub:#4A5A55;
  --text-weak:#7C8B86;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --dark:#0E2B26;
  --line:#E3DED4;
  --dash:#D8D2C6;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-block:18px;
  --sh-1:0 1px 2px rgba(14,43,38,.05),0 6px 18px rgba(14,43,38,.06);
  --sh-2:0 10px 28px rgba(14,43,38,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:68px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}
@media (min-width:1200px){.container{max-width:1200px;padding-left:32px;padding-right:32px}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(247,245,240,.88);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease);
}
.site-header.is-scrolled{background:rgba(247,245,240,.97);border-bottom-color:var(--line)}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:var(--nav-h);
  transition:min-height .3s var(--ease);
}
.site-header.is-scrolled .nav-inner{min-height:58px}
.nav-left{display:flex;align-items:center;gap:30px;flex:1 1 auto;min-width:0}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{width:40px;height:40px;flex:0 0 40px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.01em}
.brand-sub{font-size:12px;color:var(--text-weak)}
.main-nav{display:flex;align-items:center;gap:24px}
.main-nav a{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--text-sub);
  padding:8px 0;
}
.main-nav a:hover{color:var(--brand)}
.main-nav a.active{color:var(--brand)}
.main-nav a.active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.nav-right{display:flex;align-items:center;gap:14px;position:relative;flex:0 0 auto}
@media (min-width:992px){
  .nav-right::before{
    content:"";
    position:absolute;
    left:-16px;
    top:50%;
    transform:translateY(-50%);
    width:1px;
    height:26px;
    background:var(--line);
  }
}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 16px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.nav-search i{color:var(--text-weak);font-size:13px}
.nav-search input{
  border:0;
  outline:0;
  background:transparent;
  font-size:14px;
  width:150px;
  color:var(--text);
}
.nav-search input::placeholder{color:#9AA8A3}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--brand);
  font-size:17px;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.nav-toggle:hover{background:var(--brand-soft);border-color:var(--brand-soft)}

/* 抽屉 */
.site-drawer{
  position:fixed;
  top:0;right:0;
  width:300px;
  max-width:88vw;
  height:100%;
  background:var(--dark);
  color:#EAF1EE;
  z-index:1055;
  transform:translateX(105%);
  transition:transform .35s var(--ease);
  display:flex;
  flex-direction:column;
  padding:22px 22px 32px;
  overflow-y:auto;
}
.site-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-head .drawer-title{font-size:15px;font-weight:700;color:#EAF1EE}
.drawer-close{
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.18);
  background:transparent;
  color:#EAF1EE;
  font-size:16px;
  cursor:pointer;
}
.drawer-close:hover{background:rgba(255,255,255,.08)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  color:#EAF1EE;
  font-size:16px;
  font-weight:600;
  padding:13px 14px;
  border-radius:10px;
  border-left:3px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.drawer-nav a:hover{background:rgba(255,255,255,.06)}
.drawer-nav a.active{border-left-color:var(--accent);background:rgba(255,255,255,.07);color:#fff}
.drawer-foot{margin-top:auto;padding-top:26px;font-size:13px;color:#A9BEB7;line-height:1.8}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(14,43,38,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity .3s var(--ease),visibility .3s;
  z-index:1050;
}
.drawer-mask.open{opacity:1;visibility:visible}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  min-height:44px;
  padding:13px 24px;
  border-radius:var(--radius-btn);
  border:1.5px solid transparent;
  cursor:pointer;
  text-align:center;
  transition:transform .25s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn-main{background:var(--accent);color:#0E2B26;box-shadow:var(--sh-1)}
.btn-main:hover{background:var(--accent-dark);color:#0E2B26;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{transform:translateY(1px);box-shadow:0 1px 2px rgba(14,43,38,.14)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{min-height:40px;padding:10px 18px;font-size:14px}
.btn-block{width:100%}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
}
.link-more i{transition:transform .25s var(--ease)}
.link-more:hover{color:var(--brand-dark);text-decoration:underline}
.link-more:hover i{transform:translateX(4px)}

/* ============ 通用区块 ============ */
.section{padding:92px 0}
.section-tight{padding:64px 0}
.section-head{margin-bottom:36px;max-width:760px}
.sec-title{
  position:relative;
  margin:0 0 12px;
  padding-left:18px;
  font-size:clamp(24px,2.6vw,34px);
  font-weight:700;
  line-height:1.32;
  color:var(--ink);
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;top:.22em;
  width:4px;height:.92em;
  border-radius:2px;
  background:var(--brand);
}
.sec-sub{
  margin:0;
  padding-left:18px;
  font-size:16px;
  line-height:1.85;
  color:var(--text-sub);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--text-weak);
  margin-bottom:22px;
}
.crumb a{color:var(--text-weak)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--dash)}
.crumb .current{color:var(--brand);font-weight:600}

/* ============ 页面头图区 ============ */
.page-hero{padding:calc(var(--nav-h) + 40px) 0 76px;position:relative}
.page-hero h1{
  margin:16px 0 18px;
  font-size:clamp(30px,4.2vw,48px);
  font-weight:700;
  line-height:1.28;
  letter-spacing:.01em;
  color:var(--ink);
}
.hero-lead{
  margin:0 0 28px;
  font-size:17px;
  line-height:1.9;
  color:var(--text-sub);
  max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  margin:0;
  padding:0;
  list-style:none;
}
.hero-points li{
  padding:0 22px;
  border-left:1px solid var(--line);
}
.hero-points li:first-child{padding-left:0;border-left:0}
.hero-points .num{
  display:block;
  font-size:24px;
  font-weight:700;
  color:var(--brand);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.hero-points .txt{display:block;font-size:13px;color:var(--text-weak)}
.hero-media{position:relative;margin:0}
.hero-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--radius-img);
  box-shadow:var(--sh-1);
  border:1px solid var(--line);
}
.hero-tag{
  position:absolute;
  left:18px;
  bottom:18px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 16px;
  border-radius:999px;
  background:rgba(230,240,236,.94);
  color:var(--brand-dark);
  font-size:13px;
  font-weight:600;
  box-shadow:var(--sh-1);
}

/* ============ 交替图文 ============ */
.zigzag{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.zigzag + .zigzag{margin-top:76px}
.zigzag.reverse .zz-media{order:2}
.zz-media{margin:0;position:relative}
.zz-media img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:var(--radius-img);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.zz-media:hover img{transform:scale(1.015);box-shadow:var(--sh-2)}
.zz-index{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--accent-dark);
  margin-bottom:10px;
}
.zz-body h3{
  margin:0 0 14px;
  font-size:21px;
  font-weight:600;
  line-height:1.45;
  color:var(--ink);
}
.zz-body p{margin:0 0 18px;font-size:16px;line-height:1.85;color:var(--text-sub)}
.dot-list{margin:0;padding:0;list-style:none}
.dot-list li{
  position:relative;
  padding-left:20px;
  margin-bottom:10px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-sub);
}
.dot-list li::before{
  content:"";
  position:absolute;
  left:0;top:.66em;
  width:8px;height:8px;
  border-radius:2px;
  background:var(--brand);
}

/* ============ 步骤流 ============ */
.step-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.step-card{
  display:flex;
  gap:22px;
  padding:26px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--sh-1);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.step-num{
  flex:0 0 auto;
  font-size:36px;
  font-weight:700;
  line-height:1;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.step-body h3{margin:0 0 8px;font-size:18px;font-weight:600;color:var(--ink);line-height:1.45}
.step-body p{margin:0;font-size:15px;line-height:1.8;color:var(--text-sub)}

/* ============ 场景网格（非等宽） ============ */
.scene-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:22px}
.scene-card{
  grid-column:span 3;
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.scene-card--wide{grid-column:span 4}
.scene-card--narrow{grid-column:span 2}
.scene-card--half{grid-column:span 3}
.scene-card img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform .35s var(--ease);
}
.scene-card:hover img{transform:scale(1.03)}
.scene-body{padding:24px 26px 26px}
.scene-body .badge-soft{
  display:inline-block;
  margin-bottom:12px;
  padding:5px 12px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
}
.scene-body h3{margin:0 0 10px;font-size:19px;font-weight:600;line-height:1.45;color:var(--ink)}
.scene-body p{margin:0;font-size:15px;line-height:1.8;color:var(--text-sub)}

/* ============ 提示条 ============ */
.notice{
  display:flex;
  gap:18px;
  align-items:flex-start;
  padding:26px 28px;
  border-radius:var(--radius-block);
  background:var(--brand-soft);
  border:1px solid #CFE2DA;
}
.notice i{font-size:20px;color:var(--brand);margin-top:4px}
.notice h3{margin:0 0 6px;font-size:17px;font-weight:600;color:var(--brand-dark)}
.notice p{margin:0;font-size:15px;line-height:1.8;color:#2C4A43}
.notice.warn{background:#FBEDE9;border-color:#F0CFC6}
.notice.warn i,.notice.warn h3{color:var(--warn)}

/* ============ FAQ ============ */
.faq-wrap{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-block);
  box-shadow:var(--sh-1);
  padding:6px 30px;
}
.faq-item{border-bottom:1px dashed var(--dash)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:18px;
  padding:22px 0 22px 14px;
  border-left:3px solid transparent;
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  color:var(--ink);
  cursor:pointer;
  list-style:none;
  transition:border-color .25s var(--ease),color .25s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  font-size:20px;
  font-weight:600;
  line-height:1.4;
  color:var(--brand);
  transition:transform .25s var(--ease);
}
.faq-item[open] summary{border-left-color:var(--brand);color:var(--brand-dark)}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
.faq-answer{padding:0 0 24px 14px;font-size:15px;line-height:1.85;color:var(--text-sub)}

/* ============ CTA 通栏 + 表单 ============ */
.cta-band{
  background:var(--dark);
  color:#EAF1EE;
  border-radius:var(--radius-block);
  padding:48px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:44px;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:linear-gradient(90deg,var(--brand) 0%,var(--accent) 100%);
}
.cta-band h2{
  margin:0 0 16px;
  font-size:clamp(24px,2.4vw,32px);
  font-weight:700;
  line-height:1.34;
  color:#FFFFFF;
}
.cta-band p{margin:0 0 22px;font-size:15px;line-height:1.85;color:#A9BEB7}
.guard-list{margin:0 0 26px;padding:0;list-style:none}
.guard-list li{
  position:relative;
  padding-left:26px;
  margin-bottom:12px;
  font-size:15px;
  line-height:1.8;
  color:#EAF1EE;
}
.guard-list li i{
  position:absolute;
  left:0;top:.28em;
  font-size:14px;
  color:var(--accent);
}
.cta-contact{font-size:14px;line-height:1.9;color:#A9BEB7}
.cta-contact strong{color:#EAF1EE;font-weight:600}
.form-card{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-card);
  padding:26px;
}
.form-row{margin-bottom:16px}
.form-row label{display:block;margin-bottom:7px;font-size:14px;font-weight:600;color:#EAF1EE}
.form-row .req{color:var(--accent)}
.field{
  width:100%;
  height:46px;
  padding:0 14px;
  font-size:15px;
  font-family:inherit;
  color:var(--text);
  background:#fff;
  border:1px solid #CFC9BC;
  border-radius:10px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.field::placeholder{color:#9AA8A3}
.field:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
textarea.field{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
select.field{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#7C8B86 50%),linear-gradient(135deg,#7C8B86 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.form-note{
  margin-top:14px;
  font-size:13px;
  line-height:1.75;
  color:#A9BEB7;
}
.form-feedback{
  display:none;
  margin-top:14px;
  padding:12px 14px;
  border-radius:10px;
  background:rgba(227,154,43,.14);
  border:1px solid rgba(227,154,43,.4);
  color:#F5E3C6;
  font-size:13px;
  line-height:1.7;
}
.form-feedback.show{display:block}

/* ============ 相关入口 ============ */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{
  display:block;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px;
  box-shadow:var(--sh-1);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .25s var(--ease);
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#CFE2DA}
.related-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:18px;
  margin-bottom:16px;
}
.related-card h3{margin:0 0 8px;font-size:18px;font-weight:600;color:var(--ink)}
.related-card p{margin:0 0 14px;font-size:14px;line-height:1.8;color:var(--text-sub)}
.related-card span.link-more{font-size:14px}

.back-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:44px}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  margin-top:40px;
  background:var(--dark);
  color:#EAF1EE;
  padding:68px 0 30px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:linear-gradient(90deg,var(--brand) 0%,var(--accent) 100%);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand svg{width:38px;height:38px;flex:0 0 38px}
.footer-brand span{font-size:17px;font-weight:700;color:#fff}
.footer-desc{margin:0;font-size:14px;line-height:1.85;color:#A9BEB7;max-width:340px}
.footer-contact{font-size:14px;line-height:1.9;color:#A9BEB7}
.footer-contact strong{color:#EAF1EE;font-weight:600}
.footer-col h4{
  margin:0 0 16px;
  font-size:15px;
  font-weight:600;
  color:#fff;
}
.footer-col ul{margin:0;padding:0;list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#A9BEB7;transition:color .25s var(--ease)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  margin-top:46px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:12px;
  color:#7E948D;
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .section{padding:76px 0}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:34px}
}
@media (max-width:991px){
  :root{--nav-h:56px}
  .main-nav{display:none}
  .nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .nav-cta-desktop{display:none}
  .page-hero{padding:calc(var(--nav-h) + 32px) 0 56px}
  .hero-media{margin-top:34px}
  .hero-media img{aspect-ratio:16/10;max-height:300px}
  .zigzag{grid-template-columns:1fr;gap:28px}
  .zigzag.reverse .zz-media{order:0}
  .zigzag + .zigzag{margin-top:56px}
  .step-list{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .scene-card,.scene-card--wide,.scene-card--narrow,.scene-card--half{grid-column:span 1}
  .cta-band{grid-template-columns:1fr;padding:34px;gap:30px}
  .cta-band .form-card{order:-1}
  .related-grid{grid-template-columns:1fr;gap:18px}
  .faq-wrap{padding:4px 20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .brand-sub{display:none}
  .brand-name{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-points{flex-direction:column;gap:16px}
  .hero-points li{padding-left:0;border-left:0;border-top:1px dashed var(--dash);padding-top:14px}
  .hero-points li:first-child{border-top:0;padding-top:0}
  .scene-grid{grid-template-columns:1fr}
  .step-card{padding:22px;gap:16px}
  .step-num{font-size:30px}
  .faq-item summary{font-size:16px}
  .cta-band{padding:26px}
  .notice{flex-direction:column;gap:12px;padding:22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .container{padding-left:18px;padding-right:18px}
  .faq-wrap{padding:2px 16px}
  .form-card{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --brand:#17594A;
  --brand-d:#0F4438;
  --brand-l:#E6F0EC;
  --accent:#E39A2B;
  --accent-d:#C8831C;
  --warn:#C1442E;
  --ink:#16211E;
  --ink-2:#4A5A55;
  --ink-3:#7C8B86;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --dark:#0E2B26;
  --line:#E3DED4;
  --dash:#D8D2C6;
  --on-dark:#EAF1EE;
  --on-dark-2:#A9BEB7;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-badge:999px;
  --r-zone:18px;
  --sh-1:0 1px 2px rgba(14,43,38,.05),0 6px 18px rgba(14,43,38,.06);
  --sh-2:0 10px 28px rgba(14,43,38,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec-pad:92px;
  --font:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--brand-d)}
button{font:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;color:var(--ink)}
h1{font-size:clamp(30px,4.2vw,48px);line-height:1.28}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.32}
h3{font-size:21px;line-height:1.4;font-weight:600}
h4{font-size:16px;line-height:1.5;font-weight:600}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media(min-width:1200px){.container{padding-left:32px;padding-right:32px}}

.section{padding:var(--sec-pad) 0}
.section-tight{padding-top:calc(var(--sec-pad) * .6)}
.sec-head{margin-bottom:34px;max-width:760px}
.sec-head h2{position:relative;padding-left:18px}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:4px;
  border-radius:2px;background:var(--brand);
}
.sec-head .sec-sub{margin-top:14px;font-size:16px;line-height:1.85;color:var(--ink-2)}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--brand);background:var(--brand-l);border-radius:var(--r-badge);
  padding:5px 14px;margin-bottom:16px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;
  min-height:44px;transition:all .28s var(--ease);white-space:nowrap;
}
.btn-main{background:var(--accent);color:#0E2B26}
.btn-main:hover{background:var(--accent-d);color:#0E2B26;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{transform:translateY(1px);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-l);color:var(--brand-d)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-light{background:#fff;color:var(--brand)}
.btn-light:hover{background:var(--brand-l);color:var(--brand-d);transform:translateY(-1px)}
.btn-line-light{background:transparent;border-color:rgba(255,255,255,.45);color:#fff}
.btn-line-light:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.7)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand)}
.link-arrow i{transition:transform .25s var(--ease)}
.link-arrow:hover{color:var(--brand-d);text-decoration:underline}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,245,240,.92);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 1px 2px rgba(14,43,38,.05)}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:68px;gap:20px;transition:height .3s var(--ease);
}
.site-header.scrolled .nav-inner{height:58px}
.nav-left{display:flex;align-items:center;gap:34px;flex:1 1 58%;min-width:0}
.nav-right{display:flex;align-items:center;gap:14px;flex:0 0 auto}
@media(min-width:992px){
  .nav-right{border-left:1px solid var(--line);padding-left:24px}
}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-mark{width:40px;height:40px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.brand-sub{font-size:11px;color:var(--ink-3);letter-spacing:.04em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:26px}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  border-radius:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease);
}
.main-nav a:hover{color:var(--brand)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--brand);font-weight:600}
.main-nav a.active::after{transform:scaleX(1)}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--ink-3);transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-l)}
.nav-search input{
  border:0;outline:0;background:transparent;width:140px;
  font-family:inherit;font-size:14px;color:var(--ink);
}
.nav-toggle{
  display:none;width:44px;height:44px;
  align-items:center;justify-content:center;
  border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;
  color:var(--brand);font-size:18px;
}
.nav-toggle:hover{background:var(--brand-l)}

/* ---------- 抽屉导航 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,43,38,.5);
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease);z-index:1040;
}
.drawer-mask.show{opacity:1;visibility:visible}
.site-drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;
  background:var(--dark);color:var(--on-dark);z-index:1050;
  transform:translateX(102%);transition:transform .34s var(--ease);
  display:flex;flex-direction:column;padding:22px;overflow-y:auto;
}
.site-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;color:var(--on-dark);font-weight:600;font-size:16px}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.2);
  background:transparent;color:var(--on-dark);font-size:17px;
}
.drawer-close:hover{background:rgba(255,255,255,.08)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin:20px 0 24px}
.drawer-nav a{
  color:var(--on-dark);font-size:16px;padding:13px 14px;border-radius:var(--r-btn);
  transition:background .25s var(--ease);
}
.drawer-nav a:hover,.drawer-nav a.active{
  background:rgba(255,255,255,.07);color:#fff;
  box-shadow:inset 3px 0 0 var(--accent);
}
.drawer-cta{width:100%}
.drawer-foot{margin-top:22px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);font-size:13px;color:var(--on-dark-2);line-height:1.9}
@media(min-width:992px){.site-drawer,.drawer-mask{display:none}}
@media(max-width:991.98px){
  .main-nav{display:none}
  .nav-search{display:none}
  .nav-cta-desktop{display:none}
  .nav-toggle{display:inline-flex}
  .nav-inner{height:60px}
}
@media(max-width:767.98px){
  .nav-inner,.site-header.scrolled .nav-inner{height:56px}
  .brand-mark{width:36px;height:36px}
  .brand-name{font-size:15px}
  .brand-sub{display:none}
}

/* ---------- 面包屑 ---------- */
.crumb{padding:22px 0 0;font-size:13px;color:var(--ink-3)}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{margin:0 8px;color:var(--dash)}
.crumb .current{color:var(--brand);font-weight:600}

/* ---------- 头图区 ---------- */
.hero-cmp{padding:34px 0 0}
.hero-cmp-grid{
  display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
  padding:40px 0 56px;
}
.hero-cmp h1{margin-bottom:18px}
.hero-lead{
  font-size:17px;line-height:1.85;color:var(--ink-2);
  max-width:620px;margin-bottom:28px;
}
.hero-acts{display:flex;gap:14px;flex-wrap:wrap}
.hero-cmp-figure{
  border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);
  background:var(--brand-l);
}
.hero-cmp-figure img{width:100%;height:320px;object-fit:cover}
.hero-facts{display:flex;flex-wrap:wrap;gap:0;margin-top:34px}
.hero-facts .fact{padding:0 26px;border-left:1px solid var(--line)}
.hero-facts .fact:first-child{padding-left:0;border-left:0}
.hero-facts .fact b{display:block;font-size:24px;font-weight:700;color:var(--brand);line-height:1.3}
.hero-facts .fact span{font-size:13px;color:var(--ink-3)}
@media(max-width:991.98px){
  .hero-cmp-grid{grid-template-columns:1fr;gap:28px;padding:28px 0 40px}
  .hero-cmp-figure img{height:240px}
}
@media(max-width:575.98px){
  .hero-cmp-figure img{height:200px}
  .hero-lead{font-size:16px}
  .hero-facts .fact{padding:0 16px}
  .hero-facts .fact b{font-size:20px}
}

/* ---------- 表格区 ---------- */
.table-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-zone);box-shadow:var(--sh-1);overflow:hidden;
}
.table-wrap{overflow-x:auto}
table.cmp{width:100%;min-width:780px;border-collapse:collapse;font-size:15px}
.cmp thead th{
  background:var(--brand-l);color:var(--brand-d);text-align:left;
  font-size:14px;font-weight:600;letter-spacing:.02em;
  padding:16px 20px;white-space:nowrap;
}
.cmp tbody td{
  padding:18px 20px;border-top:1px solid var(--line);
  color:var(--ink-2);line-height:1.75;vertical-align:top;
}
.cmp tbody tr:nth-child(even) td{background:#FBFAF6}
.cmp tbody td:first-child{
  color:var(--ink);font-weight:600;position:relative;padding-left:32px;
}
.cmp tbody td:first-child::before{
  content:"";position:absolute;left:18px;top:26px;
  width:6px;height:6px;border-radius:2px;background:var(--accent);
}
.table-note{
  margin-top:16px;font-size:13px;line-height:1.9;color:var(--ink-3);
  display:flex;gap:10px;align-items:flex-start;
}
.table-note i{color:var(--accent);margin-top:5px}

/* ---------- 答疑折叠 ---------- */
.faq-box{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-zone);box-shadow:var(--sh-1);overflow:hidden;
}
.faq-item{position:relative}
.faq-item + .faq-item{border-top:1px dashed var(--dash)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  display:flex;align-items:flex-start;gap:16px;
  padding:22px 26px 22px 28px;
  font-size:17px;font-weight:600;color:var(--ink);
  transition:background .25s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#FBFAF6}
.faq-item summary .qi{
  position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:2px;background:var(--brand);opacity:0;transition:opacity .25s var(--ease);
}
.faq-item[open] summary .qi{opacity:1}
.faq-item summary .sign{
  margin-left:auto;flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  color:var(--brand);font-size:15px;font-weight:600;line-height:1;
  transition:transform .25s var(--ease),background .25s var(--ease);
}
.faq-item summary .sign::before{content:"+"}
.faq-item[open] summary .sign{transform:rotate(180deg);background:var(--brand-l)}
.faq-item[open] summary .sign::before{content:"−"}
.faq-answer{
  padding:0 26px 24px 28px;font-size:15px;line-height:1.85;color:var(--ink-2);
  max-width:760px;
}
.faq-answer p{margin-bottom:.9em}
.faq-answer ul{margin:10px 0 0}
.faq-answer li{
  position:relative;padding-left:16px;margin-bottom:6px;font-size:15px;line-height:1.85;
}
.faq-answer li::before{
  content:"";position:absolute;left:0;top:12px;width:5px;height:5px;
  border-radius:2px;background:var(--brand);
}

/* ---------- 准备清单 ---------- */
.prep-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.prep-item{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.prep-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.prep-item .num{
  display:block;font-size:20px;font-weight:700;color:var(--accent);
  letter-spacing:.04em;margin-bottom:10px;
}
.prep-item h3{font-size:18px;margin-bottom:10px}
.prep-item p{font-size:15px;line-height:1.85;color:var(--ink-2)}
@media(max-width:767.98px){.prep-grid{grid-template-columns:1fr;gap:16px}}

/* ---------- 人工协助 ---------- */
.assist-grid{display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:start}
.assist-list{border-left:4px solid var(--brand);padding-left:28px}
.assist-item{padding:18px 0;border-bottom:1px dashed var(--dash)}
.assist-item:last-child{border-bottom:0;padding-bottom:0}
.assist-item h3{font-size:17px;margin-bottom:8px}
.assist-item p{font-size:14px;line-height:1.8;color:var(--ink-2)}
@media(max-width:991.98px){
  .assist-grid{grid-template-columns:1fr;gap:26px}
  .assist-list{padding-left:20px}
}

/* ---------- CTA ---------- */
.cta-wrap{padding:0 0 var(--sec-pad)}
.cta-band{
  position:relative;overflow:hidden;background:var(--dark);
  border-radius:var(--r-zone);padding:52px;color:var(--on-dark);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/coverpic/cover-6.webp") center/cover no-repeat;
  opacity:.16;
}
.cta-band::after{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,var(--brand) 0%,var(--accent) 100%);
}
.cta-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center;
}
.cta-inner h2{color:#fff;margin-bottom:14px}
.cta-inner p{color:var(--on-dark-2);font-size:15px;line-height:1.85;max-width:560px}
.cta-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.cta-tags span{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--on-dark);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-badge);padding:6px 14px;
}
.cta-tags i{color:var(--accent)}
.cta-side{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.cta-side .cta-mail{
  font-size:14px;color:var(--on-dark-2);border-top:1px solid rgba(255,255,255,.14);
  padding-top:14px;width:100%;
}
@media(max-width:991.98px){
  .cta-band{padding:34px 24px}
  .cta-inner{grid-template-columns:1fr;gap:26px}
  .cta-side{width:100%}
  .cta-side .btn{width:100%}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--dark);color:var(--on-dark);
  border-top:3px solid transparent;
  background-image:linear-gradient(var(--dark),var(--dark)),
                   linear-gradient(90deg,var(--brand),var(--accent));
  background-origin:border-box;background-clip:padding-box,border-box;
  padding:64px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-brand svg{width:36px;height:36px}
.footer-desc{font-size:14px;line-height:1.9;color:var(--on-dark-2);max-width:340px}
.footer-contact{font-size:14px;line-height:1.9;color:var(--on-dark-2)}
.footer-contact strong{color:var(--on-dark);font-weight:600}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--on-dark-2)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12px;color:var(--on-dark-2);
}
@media(max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{padding-top:48px}
}
@media(max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-desc{max-width:none}
}

@media(max-width:991.98px){:root{--sec-pad:64px}}
@media(max-width:575.98px){:root{--sec-pad:48px}}