/* roulang page: index */
:root{
  --brand:#0F4B4A;
  --brand-deep:#0A3735;
  --brand-tint:#E4EEEA;
  --accent:#D9762E;
  --accent-dark:#C4651F;
  --accent-tint:#FBEADF;
  --bg:#F7F3EA;
  --surface:#FFFFFF;
  --ink:#12211F;
  --ink-soft:#4E605D;
  --line:#DFD9C9;
  --r-card:16px;
  --r-media:20px;
  --r-input:10px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(10,55,53,.05),0 8px 24px -12px rgba(10,55,53,.18);
  --shadow-2:0 18px 40px -16px rgba(10,55,53,.28);
  --ease:220ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--accent);}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ink);line-height:1.35;}
p{margin:0 0 1em;max-width:760px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;box-shadow:0 0 0 3px var(--accent-tint);border-radius:6px;}
.form-control:focus-visible,.form-select:focus-visible{outline:none;}

/* ------- 布局骨架 ------- */
.site-shell{display:flex;min-height:100vh;align-items:stretch;}
.main-col{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 48px;}
@media (max-width:1279px){.wrap{padding:0 32px;}}
@media (max-width:767px){.wrap{padding:0 20px;}}

/* ------- 左侧竖向导航 ------- */
.side-nav{
  position:sticky;top:0;height:100vh;flex:0 0 248px;width:248px;
  background:var(--brand-deep);color:rgba(255,255,255,.78);
  display:flex;flex-direction:column;padding:26px 18px 22px;overflow-y:auto;
}
@media (min-width:1024px) and (max-width:1279px){
  .side-nav{flex-basis:208px;width:208px;padding:22px 14px 18px;}
}
.brand-mark{display:block;padding:6px 8px 18px;border-bottom:1px solid rgba(255,255,255,.14);margin-bottom:16px;}
.brand-mark .bm-main{display:block;font-size:26px;font-weight:700;color:#fff;line-height:1.15;letter-spacing:.02em;}
.brand-mark .bm-sub{display:block;font-size:14px;font-weight:500;color:rgba(255,255,255,.72);line-height:1.2;margin-top:2px;letter-spacing:.14em;}
.side-menu{display:flex;flex-direction:column;gap:4px;}
.side-menu a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:11px 12px;border-radius:10px;border-left:3px solid transparent;
  font-size:15px;font-weight:500;color:rgba(255,255,255,.78);
  transition:background var(--ease),color var(--ease),border-color var(--ease),padding var(--ease);
}
.side-menu a .arrow{font-size:13px;opacity:0;transform:translateX(-4px);transition:all var(--ease);}
.side-menu a:hover{background:rgba(255,255,255,.08);color:#fff;padding-left:16px;}
.side-menu a:hover .arrow{opacity:.9;transform:translateX(0);}
.side-menu a.active{background:var(--brand-tint);color:var(--brand-deep);border-left-color:var(--accent);}
.side-menu a.active:hover{background:var(--brand-tint);color:var(--brand-deep);padding-left:12px;}
.side-foot{margin-top:auto;padding-top:24px;}
.side-foot p{font-size:13px;line-height:1.9;color:rgba(255,255,255,.7);margin:0 0 14px;}
.side-cta{width:100%;}

/* ------- 移动端顶部栏与抽屉 ------- */
.mobile-bar{display:none;}
.menu-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;background:transparent;border:1px solid rgba(255,255,255,.28);
  border-radius:10px;transition:background var(--ease),border-color var(--ease);
}
.menu-toggle span{display:block;height:2px;background:rgba(255,255,255,.85);border-radius:2px;}
.menu-toggle:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.5);}
@media (max-width:1023px){
  .side-nav{display:none;}
  .mobile-bar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding:12px 20px;background:var(--brand-deep);position:sticky;top:0;z-index:1040;
    box-shadow:0 6px 20px -12px rgba(10,55,53,.5);
  }
  .mobile-bar .brand-mark{padding:0;border:0;margin:0;}
  .mobile-bar .bm-main{font-size:21px;}
  .mobile-bar .bm-sub{font-size:12px;letter-spacing:.1em;}
  .offcanvas.offcanvas-end{width:min(320px,86vw);}
}
.offcanvas{background:var(--brand-deep);color:rgba(255,255,255,.8);}
.offcanvas-header{border-bottom:1px solid rgba(255,255,255,.14);padding:18px 20px;}
.offcanvas-header .brand-mark{padding:0;border:0;margin:0;}
.offcanvas-header .bm-main{font-size:22px;}
.offcanvas-header .bm-sub{font-size:13px;}
.offcanvas .btn-close{filter:invert(1) grayscale(1) brightness(1.9);opacity:.75;}
.offcanvas .btn-close:hover{opacity:1;}
.offcanvas-body{padding:18px 16px 26px;}
.offcanvas .side-menu a{padding:14px 12px;min-height:48px;font-size:15px;}

/* ------- 按钮 ------- */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;line-height:1;text-decoration:none;
  border:1.5px solid transparent;transition:all var(--ease);
}
.btn-main{background:var(--accent);color:#fff;box-shadow:0 10px 22px -14px rgba(217,118,46,.95);}
.btn-main:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);}
.btn-main:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand);color:#fff;}
.btn-ghost:active{transform:translateY(1px);}

/* ------- Hero ------- */
.hero{position:relative;overflow:hidden;padding:72px 0 80px;}
.hero::after{
  content:"";position:absolute;right:-140px;top:-90px;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(15,75,74,.12);
  box-shadow:0 0 0 62px rgba(15,75,74,.035),0 0 0 140px rgba(15,75,74,.02);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative;z-index:1;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;background:var(--accent-tint);color:#8A4415;
  font-size:13px;font-weight:500;letter-spacing:.04em;padding:6px 14px;border-radius:var(--r-pill);margin-bottom:18px;
}
.hero h1{font-size:clamp(30px,3.2vw,46px);line-height:1.25;margin-bottom:18px;}
.hero-sub{font-size:18px;line-height:1.75;color:var(--ink-soft);max-width:560px;margin-bottom:0;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
  margin-top:40px;padding-top:26px;border-top:1px solid var(--line);max-width:560px;
}
.hero-stats .num{font-size:28px;font-weight:700;color:var(--brand);line-height:1.1;}
.hero-stats .lbl{font-size:12px;color:var(--ink-soft);letter-spacing:.02em;margin-top:2px;}
.hero-figure{margin:0;border-radius:var(--r-media);overflow:hidden;box-shadow:var(--shadow-2);position:relative;}
.hero-figure img{width:100%;aspect-ratio:5/4;object-fit:cover;}
.hero-figure::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(10,55,53,.04),rgba(10,55,53,.16));
}
@media (max-width:1023px){
  .hero{padding:52px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero::after{display:none;}
}
@media (max-width:520px){
  .hero-stats{grid-template-columns:1fr 1fr;gap:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
}

/* ------- 通用板块 ------- */
.section{padding:88px 0;}
.section-glass{background:linear-gradient(180deg,rgba(228,238,234,.5),rgba(247,243,234,0) 78%);}
@media (max-width:767px){.section{padding:56px 0;}}
.sec-head{max-width:760px;margin-bottom:40px;}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--accent);letter-spacing:.1em;margin-bottom:12px;}
.kicker::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;}
.sec-head h2{font-size:30px;line-height:1.35;margin-bottom:14px;}
.sec-head p{font-size:16px;color:var(--ink-soft);margin:0;}
@media (max-width:767px){.sec-head h2{font-size:24px;}}

/* ------- 入口核对 2×2 ------- */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.pain-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 26px 24px;transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.pain-card:hover{border-color:var(--brand);transform:translateY(-3px);box-shadow:var(--shadow-1);}
.pain-card .no{font-size:24px;font-weight:700;color:var(--accent);line-height:1;letter-spacing:.02em;margin-bottom:14px;}
.pain-card h3{font-size:20px;margin-bottom:8px;}
.pain-card p{font-size:15px;line-height:1.75;color:var(--ink-soft);margin:0;}
@media (max-width:767px){
  .pain-grid{grid-template-columns:1fr;gap:16px;}
  .pain-card{padding:22px 20px;}
  .pain-card h3{font-size:18px;}
}

/* ------- 登录流程 ------- */
.solution-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:56px;align-items:center;}
.solution-figure{margin:0;border-radius:var(--r-media);overflow:hidden;box-shadow:var(--shadow-1);}
.solution-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.timeline{position:relative;padding-left:34px;}
.timeline::before{content:"";position:absolute;left:9px;top:10px;bottom:12px;width:1px;background:var(--line);}
.timeline .step{position:relative;padding-bottom:28px;}
.timeline .step:last-child{padding-bottom:0;}
.timeline .step::before{
  content:"";position:absolute;left:-31px;top:7px;width:12px;height:12px;border-radius:50%;
  background:var(--surface);border:2.5px solid var(--brand);
}
.timeline .step h3{font-size:19px;margin-bottom:6px;}
.timeline .step p{font-size:15px;line-height:1.75;color:var(--ink-soft);margin:0;}
@media (max-width:1023px){
  .solution-grid{grid-template-columns:1fr;gap:34px;}
  .solution-figure{max-width:560px;}
}

/* ------- 数据条带 ------- */
.stats-band{background:var(--brand-deep);color:#fff;padding:64px 0;}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);}
.stats-row .cell{padding:6px 28px;border-left:1px solid rgba(255,255,255,.16);}
.stats-row .cell:first-child{border-left:0;padding-left:0;}
.stats-row .num{font-size:40px;font-weight:700;line-height:1.1;color:#fff;}
.stats-row .num small{font-size:15px;font-weight:500;margin-left:4px;color:rgba(255,255,255,.72);}
.stats-row .desc{font-size:13px;line-height:1.7;color:rgba(255,255,255,.72);margin-top:6px;}
@media (max-width:900px){
  .stats-row{grid-template-columns:repeat(2,1fr);gap:30px 0;}
  .stats-row .cell:nth-child(3){border-left:0;padding-left:0;}
  .stats-row .cell:nth-child(4){padding-left:28px;}
}
@media (max-width:560px){
  .stats-band{padding:46px 0;}
  .stats-row{grid-template-columns:1fr;gap:0;}
  .stats-row .cell{border-left:0;padding:18px 0;border-top:1px solid rgba(255,255,255,.14);}
  .stats-row .cell:first-child{border-top:0;padding-top:0;}
  .stats-row .cell:nth-child(4){padding-left:0;}
  .stats-row .num{font-size:32px;}
}

/* ------- 使用者反馈 ------- */
.voice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;align-items:start;}
.voice-grid .col-b{margin-top:32px;}
.voice-card{background:var(--surface);border-radius:var(--r-card);padding:30px;box-shadow:var(--shadow-1);margin-bottom:24px;transition:transform var(--ease),box-shadow var(--ease);}
.voice-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.voice-card .quote-mark{font-size:40px;line-height:.8;font-weight:700;color:rgba(217,118,46,.35);margin-bottom:10px;}
.voice-card blockquote{margin:0 0 20px;font-size:17px;line-height:1.9;color:var(--ink);}
.voice-person{display:flex;align-items:center;gap:12px;}
.voice-person .avatar{
  width:40px;height:40px;flex:0 0 40px;border-radius:50%;background:var(--brand-tint);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;
}
.voice-person .nm{font-size:14px;font-weight:500;line-height:1.4;}
.voice-person .role{font-size:13px;color:var(--ink-soft);line-height:1.4;}
@media (max-width:767px){
  .voice-grid{grid-template-columns:1fr;gap:0;}
  .voice-grid .col-b{margin-top:0;}
  .voice-card{padding:24px 22px;}
  .voice-card blockquote{font-size:16px;}
}

/* ------- 最新信息（CMS） ------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.badge-tag{display:inline-block;align-self:flex-start;background:var(--brand-tint);color:var(--brand);font-size:12px;font-weight:500;letter-spacing:.02em;padding:3px 12px;border-radius:var(--r-pill);}
.post-card h3{
  font-size:18px;line-height:1.5;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card h3 a{color:var(--ink);}
.post-card h3 a:hover{color:var(--brand);}
.post-excerpt{
  font-size:14px;line-height:1.7;color:var(--ink-soft);margin:0 0 18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;
  padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-soft);
}
.read-more{font-size:13px;font-weight:500;color:var(--brand);}
.read-more:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-card);
  color:var(--ink-soft);text-align:center;padding:36px 20px;
}
.empty-state .empty-ico{font-size:26px;color:var(--brand);opacity:.5;}
.empty-state p{margin:0;font-size:15px;}
@media (max-width:1023px){.post-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.post-grid{grid-template-columns:1fr;gap:16px;}.post-card{padding:20px;}}

/* ------- FAQ ------- */
.faq .accordion{max-width:900px;}
.faq .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-card) !important;
  background:var(--surface);margin-bottom:12px;overflow:hidden;
}
.faq .accordion-button{
  background:var(--surface);box-shadow:none;border-radius:0;
  font-size:17px;font-weight:500;color:var(--ink);line-height:1.6;
  padding:20px 24px;gap:14px;transition:color var(--ease),box-shadow var(--ease),background var(--ease);
}
.faq .accordion-button:not(.collapsed){color:var(--brand);box-shadow:inset 3px 0 0 var(--accent);}
.faq .accordion-button:focus{box-shadow:none;outline:none;}
.faq .accordion-button:focus-visible{outline:2px solid var(--accent);outline-offset:-4px;}
.faq .accordion-button::after{display:none;}
.faq .chev{
  margin-left:auto;flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);position:relative;transition:all var(--ease);
}
.faq .chev::before,.faq .chev::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:all var(--ease);}
.faq .chev::before{width:11px;height:1.6px;left:7px;top:12px;}
.faq .chev::after{width:1.6px;height:11px;left:11.7px;top:7px;}
.faq .accordion-button:not(.collapsed) .chev{background:var(--accent-tint);border-color:var(--accent);}
.faq .accordion-button:not(.collapsed) .chev::after{opacity:0;transform:scaleY(.2);}
.faq .accordion-body{font-size:15px;line-height:1.85;color:var(--ink-soft);padding:0 24px 22px;max-width:760px;}
@media (max-width:520px){
  .faq .accordion-button{font-size:16px;padding:16px 18px;}
  .faq .accordion-body{padding:0 18px 18px;}
}

/* ------- 结尾 CTA ------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--accent-tint);
  border-radius:var(--r-media);padding:56px;
}
.cta-band::before{
  content:"";position:absolute;right:-46px;bottom:-70px;width:260px;height:340px;
  border:2px solid rgba(217,118,46,.28);border-bottom:0;border-radius:140px 140px 0 0;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;right:118px;bottom:-70px;width:170px;height:230px;
  border:1px solid rgba(15,75,74,.14);border-bottom:0;border-radius:90px 90px 0 0;pointer-events:none;
}
.cta-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 420px;gap:48px;align-items:start;}
.cta-copy h2{font-size:28px;line-height:1.4;margin-bottom:14px;}
.cta-copy p{font-size:15px;line-height:1.8;color:var(--ink-soft);margin-bottom:22px;}
.cta-points{display:grid;gap:10px;}
.cta-points li{position:relative;padding-left:22px;font-size:15px;line-height:1.7;color:var(--ink-soft);}
.cta-points li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;background:var(--accent);}
.assist-form{background:var(--surface);border-radius:var(--r-card);padding:26px;box-shadow:var(--shadow-1);}
.assist-form .form-label{font-size:13px;font-weight:500;color:var(--ink-soft);margin-bottom:6px;}
.form-control,.form-select{
  height:48px;border-radius:var(--r-input);border:1px solid var(--line);
  background:var(--surface);color:var(--ink);font-size:15px;padding:0 14px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.form-control::placeholder{color:var(--ink-soft);opacity:.72;}
.form-control:focus,.form-select:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--accent-tint);}
textarea.form-control{height:auto;min-height:104px;padding:12px 14px;resize:vertical;line-height:1.7;}
.assist-form .btn-main{width:100%;margin-top:4px;}
.assist-form .form-note{font-size:12px;line-height:1.7;color:var(--ink-soft);margin:12px 0 0;}
@media (max-width:1023px){
  .cta-band{padding:36px 28px;}
  .cta-grid{grid-template-columns:1fr;gap:30px;}
}
@media (max-width:520px){
  .cta-band{padding:28px 20px;}
  .cta-copy h2{font-size:22px;}
  .assist-form{padding:20px;}
}

/* ------- 页脚 ------- */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:auto;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.1fr 1.1fr;gap:40px;padding-bottom:44px;}
.f-brand{display:block;margin-bottom:14px;}
.f-brand .f-main{display:block;font-size:24px;font-weight:700;color:#fff;line-height:1.15;letter-spacing:.02em;}
.f-brand .f-sub{display:block;font-size:13px;font-weight:500;color:rgba(255,255,255,.72);line-height:1.2;margin-top:2px;letter-spacing:.14em;}
.f-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);margin:0;max-width:320px;}
.footer-grid h4{font-size:14px;font-weight:500;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.footer-grid a{display:block;font-size:14px;line-height:1.6;color:rgba(255,255,255,.72);padding:5px 0;transition:color var(--ease);}
.footer-grid a:hover{color:var(--accent);}
.footer-list li{font-size:14px;line-height:1.75;color:rgba(255,255,255,.68);padding:5px 0;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.58);
}
.footer-bottom span{line-height:1.7;}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:520px){
  .site-footer{padding-top:46px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: article */
:root{
  --brand:#0F4B4A;
  --brand-deep:#0A3735;
  --brand-tint:#E4EEEA;
  --accent:#D9762E;
  --accent-dark:#C4651F;
  --accent-tint:#FBEADF;
  --bg:#F7F3EA;
  --surface:#FFFFFF;
  --ink:#12211F;
  --ink-soft:#4E605D;
  --line:#DFD9C9;
  --radius-card:16px;
  --radius-media:20px;
  --radius-input:10px;
  --radius-pill:999px;
  --radius-nav:10px;
  --shadow-1:0 1px 2px rgba(10,55,53,.05),0 8px 24px -12px rgba(10,55,53,.18);
  --shadow-2:0 18px 40px -16px rgba(10,55,53,.28);
  --sidebar-w:248px;
  --bs-body-bg:#F7F3EA;
  --bs-body-color:#12211F;
  --bs-link-color:#0F4B4A;
  --bs-link-hover-color:#C4651F;
  --bs-border-color:#DFD9C9;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Inter,system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease;}
a:hover{color:var(--accent-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ink);}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;box-shadow:0 0 0 3px var(--accent-tint);border-radius:6px;}

/* ---------- 布局骨架 ---------- */
.site-main{margin-left:var(--sidebar-w);min-height:100vh;background:var(--bg);}
.page-wrap{max-width:1200px;margin:0 auto;padding:0 48px;}

/* ---------- 左侧栏 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--brand-deep);
  padding:32px 20px 24px;
  display:flex;flex-direction:column;
  overflow-y:auto;
  z-index:1040;
}
.brand{display:block;padding:0 8px 24px;border-bottom:1px solid rgba(255,255,255,.14);}
.brand-main{
  display:block;
  font-size:26px;font-weight:700;letter-spacing:.06em;
  color:#fff;line-height:1.2;
}
.brand-sub{
  display:block;
  margin-top:2px;
  font-size:14px;font-weight:500;letter-spacing:.14em;
  color:var(--accent);
}
.side-menu{margin-top:26px;display:flex;flex-direction:column;gap:6px;}
.side-menu a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;
  border-radius:var(--radius-nav);
  color:rgba(255,255,255,.78);
  font-size:15px;font-weight:500;
  border-left:3px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.side-menu a .arrow{opacity:0;transform:translateX(-4px);transition:opacity .2s ease,transform .2s ease;color:var(--accent);font-weight:700;}
.side-menu a:hover{background:rgba(255,255,255,.08);color:#fff;border-left-color:var(--accent);}
.side-menu a:hover .arrow{opacity:1;transform:translateX(0);}
.side-menu a.active{
  background:var(--brand-tint);
  color:var(--brand-deep);
  border-left-color:var(--accent);
  font-weight:700;
}
.side-menu a.active .arrow{opacity:1;transform:translateX(0);color:var(--accent);}
.side-contact{
  margin-top:auto;padding-top:24px;border-top:1px solid rgba(255,255,255,.14);
}
.side-contact p{
  font-size:13px;line-height:1.7;color:rgba(255,255,255,.72);margin-bottom:14px;
}
.btn-primary,
a.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 24px;
  background:var(--accent);color:#fff;
  border:none;border-radius:var(--radius-pill);
  font-size:15px;font-weight:500;letter-spacing:.02em;
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease;
  cursor:pointer;
}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost,
a.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 24px;
  background:transparent;color:var(--brand);
  border:1.5px solid var(--brand);border-radius:var(--radius-pill);
  font-size:15px;font-weight:500;
  transition:background .22s ease,color .22s ease,transform .22s ease;
}
.btn-ghost:hover{background:var(--brand);color:#fff;transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ---------- 移动端顶栏 ---------- */
.mobile-top{
  display:none;
  position:fixed;top:0;left:0;right:0;height:62px;
  background:var(--brand-deep);
  align-items:center;justify-content:space-between;
  padding:0 20px;z-index:1050;
  box-shadow:0 6px 20px -12px rgba(10,55,53,.6);
}
.brand-mini{display:flex;align-items:baseline;gap:6px;}
.brand-mini .m-main{font-size:20px;font-weight:700;color:#fff;letter-spacing:.06em;}
.brand-mini .m-sub{font-size:12px;font-weight:500;color:var(--accent);letter-spacing:.1em;}
.nav-toggle{
  width:44px;height:44px;border:1px solid rgba(255,255,255,.2);
  background:transparent;border-radius:12px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  cursor:pointer;
}
.nav-toggle span{display:block;width:20px;height:2px;background:#fff;border-radius:2px;}
.offcanvas.drawer{background:var(--brand-deep);color:#fff;width:288px;}
.offcanvas.drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.14);padding:20px;}
.offcanvas.drawer .offcanvas-title{font-size:20px;font-weight:700;color:#fff;letter-spacing:.06em;}
.offcanvas.drawer .offcanvas-title small{display:block;font-size:12px;color:var(--accent);letter-spacing:.1em;margin-top:2px;font-weight:500;}
.offcanvas.drawer .btn-close{filter:invert(1) grayscale(1) brightness(2);opacity:.8;}
.offcanvas.drawer .offcanvas-body{padding:18px 16px 28px;}
.drawer-menu{display:flex;flex-direction:column;gap:6px;}
.drawer-menu a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:var(--radius-nav);
  color:rgba(255,255,255,.8);font-size:15px;font-weight:500;
  border-left:3px solid transparent;
}
.drawer-menu a:hover,.drawer-menu a:focus{background:rgba(255,255,255,.08);color:#fff;border-left-color:var(--accent);}
.drawer-menu a.active{background:var(--brand-tint);color:var(--brand-deep);border-left-color:var(--accent);font-weight:700;}
.drawer-note{margin-top:22px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);font-size:13px;line-height:1.8;color:rgba(255,255,255,.7);}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--bg);border-bottom:1px solid var(--line);}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:16px 0;font-size:13px;color:var(--ink-soft);
}
.crumb a{color:var(--ink-soft);}
.crumb a:hover{color:var(--accent-dark);}
.crumb .sep{color:#B9B1A0;}
.crumb .current{color:var(--brand);font-weight:500;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-head{padding:44px 0 8px;}
.article-head h1{
  font-size:clamp(28px,3.2vw,42px);
  line-height:1.3;
  max-width:860px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:20px;font-size:13px;color:var(--ink-soft);
}
.chip{
  display:inline-flex;align-items:center;
  height:28px;padding:0 14px;
  background:var(--brand-tint);color:var(--brand);
  border-radius:var(--radius-pill);
  font-size:13px;font-weight:500;
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#B9B1A0;display:inline-block;}
.hero-thumb{
  margin:28px 0 0;
  border-radius:var(--radius-media);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  position:relative;
  aspect-ratio:16/7;
}
.hero-thumb img{width:100%;height:100%;object-fit:cover;}
.hero-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,55,53,0) 40%,rgba(10,55,53,.28) 100%);
}

/* ---------- 正文区 ---------- */
.article-shell{
  position:relative;
  padding:36px 0 8px;
}
.article-shell::before{
  content:"";position:absolute;top:40px;bottom:40px;left:-28px;width:3px;
  border-radius:3px;background:linear-gradient(180deg,var(--accent-tint),var(--brand-tint));
}
.article-body{
  max-width:760px;
  font-size:17px;line-height:1.9;color:var(--ink);
}
.article-body p{margin:0 0 18px;}
.article-body h2{
  font-size:26px;line-height:1.4;
  margin:44px 0 16px;padding-left:14px;
  border-left:4px solid var(--brand);
}
.article-body h3{font-size:20px;line-height:1.45;margin:32px 0 12px;color:var(--brand);}
.article-body h4{font-size:17px;margin:24px 0 10px;}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 20px;}
.article-body li{margin-bottom:8px;}
.article-body ul li::marker{color:var(--accent);}
.article-body ol li::marker{color:var(--accent);font-weight:700;}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;
  background:var(--brand-tint);
  border-left:3px solid var(--accent);
  border-radius:0 12px 12px 0;
  color:var(--ink);
  font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{width:100%;height:auto;border-radius:var(--radius-media);margin:26px auto;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-soft);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top;}
.article-body th{background:var(--brand-tint);color:var(--brand);font-weight:700;}
.article-body a{color:var(--brand);text-decoration:underline;text-decoration-thickness:1px;text-decoration-color:rgba(217,118,46,0);transition:text-decoration-color .2s ease;}
.article-body a:hover{text-decoration-color:var(--accent);color:var(--accent-dark);}
.article-body hr{border:none;border-top:1px solid var(--line);margin:34px 0;}

/* ---------- 阅读提示 ---------- */
.read-note{
  max-width:760px;
  margin:40px 0 0;
  background:var(--surface);
  border:1px solid var(--line);
  border-left:4px solid var(--accent);
  border-radius:var(--radius-card);
  padding:22px 24px;
  box-shadow:var(--shadow-1);
}
.read-note h3{font-size:16px;color:var(--brand);margin-bottom:8px;}
.read-note p{font-size:14.5px;line-height:1.85;color:var(--ink-soft);margin:0;}

/* ---------- 相关推荐 ---------- */
.related{padding:64px 0 8px;}
.section-head{margin-bottom:26px;}
.section-head h2{font-size:28px;line-height:1.35;}
.section-head p{margin-top:8px;font-size:15px;color:var(--ink-soft);max-width:760px;}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.post-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--brand-tint);}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.post-card:hover .thumb img{transform:scale(1.04);}
.post-card .pc-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.post-card .chip{align-self:flex-start;margin-bottom:12px;}
.post-card h3{
  font-size:18px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card h3 a{color:var(--ink);}
.post-card h3 a:hover{color:var(--brand);}
.post-card p{
  font-size:14.5px;line-height:1.8;color:var(--ink-soft);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pc-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-soft);
}
.pc-foot .go{color:var(--brand);font-weight:500;}
.pc-foot .go:hover{color:var(--accent-dark);}

/* ---------- 错误空态 ---------- */
.empty-state{
  max-width:620px;margin:0 auto;text-align:center;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:56px 28px;
  box-shadow:var(--shadow-1);
}
.empty-state .es-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;
  background:var(--accent-tint);color:var(--accent);
  display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700;
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--ink-soft);font-size:15px;margin-bottom:24px;}

/* ---------- CTA 条带 ---------- */
.cta-band{
  margin:72px 0 0;
  background:var(--brand);
  border-radius:var(--radius-media);
  padding:44px 48px;
  color:#fff;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-40px;width:260px;height:260px;
  border:2px solid rgba(255,255,255,.12);border-radius:50%;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative;z-index:1;}
.cta-band h2{color:#fff;font-size:26px;line-height:1.4;margin-bottom:8px;}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;margin:0;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.6);}
.cta-band .btn-ghost:hover{background:#fff;color:var(--brand);border-color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:88px;
  background:var(--brand-deep);
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
}
.site-footer .wrap{max-width:1200px;margin:0 auto;padding:0 48px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.f-brand{display:block;margin-bottom:16px;}
.f-main{display:block;font-size:24px;font-weight:700;color:#fff;letter-spacing:.06em;line-height:1.2;}
.f-sub{display:block;margin-top:2px;font-size:13px;font-weight:500;color:var(--accent);letter-spacing:.14em;}
.f-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);margin:0;max-width:320px;}
.site-footer h4{font-size:14px;font-weight:500;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.site-footer a{display:block;font-size:14px;line-height:2;color:rgba(255,255,255,.72);}
.site-footer a:hover{color:var(--accent);}
.footer-list{list-style:none;padding:0;margin:0;}
.footer-list li{font-size:14px;line-height:2;color:rgba(255,255,255,.72);}
.footer-bottom{
  margin-top:48px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sidebar-w:208px;}
  .page-wrap{padding:0 32px;}
  .site-footer .wrap{padding:0 32px;}
  .side-menu a{font-size:14px;padding:10px 12px;}
  .brand-main{font-size:23px;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{padding:36px 32px;}
}
@media (max-width:1023px){
  .sidebar{display:none;}
  .mobile-top{display:flex;}
  .site-main{margin-left:0;padding-top:62px;}
  .page-wrap{padding:0 28px;}
  .site-footer .wrap{padding:0 28px;}
  .article-shell::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .article-head{padding:32px 0 4px;}
}
@media (max-width:767px){
  .page-wrap{padding:0 20px;}
  .site-footer .wrap{padding:0 20px;}
  .article-body{font-size:15.5px;line-height:1.85;}
  .article-body h2{font-size:22px;margin-top:34px;}
  .article-body h3{font-size:18px;}
  .hero-thumb{aspect-ratio:16/10;border-radius:14px;}
  .post-grid{grid-template-columns:1fr;}
  .related{padding-top:48px;}
  .section-head h2{font-size:23px;}
  .cta-band{padding:28px 22px;border-radius:16px;margin-top:56px;}
  .cta-band h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-primary,.cta-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .meta-row{font-size:12.5px;gap:10px;}
  .crumb .current{max-width:100%;white-space:normal;}
  .read-note{padding:18px;}
  .empty-state{padding:40px 20px;}
}
@media (max-width:520px){
  .article-head h1{font-size:26px;line-height:1.35;}
  .brand-sub{letter-spacing:.1em;}
  .site-footer{margin-top:64px;padding-top:48px;}
}

/* roulang page: category1 */
:root{
  --brand:#0F4B4A;
  --brand-deep:#0A3735;
  --brand-tint:#E4EEEA;
  --accent:#D9762E;
  --accent-dark:#C4651F;
  --accent-tint:#FBEADF;
  --bg:#F7F3EA;
  --surface:#FFFFFF;
  --ink:#12211F;
  --ink-soft:#4E605D;
  --line:#DFD9C9;
  --shadow-1:0 1px 2px rgba(10,55,53,.05),0 8px 24px -12px rgba(10,55,53,.18);
  --shadow-2:0 18px 40px -16px rgba(10,55,53,.28);
  --nav-w:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
ul{list-style:none;padding:0;margin:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;box-shadow:0 0 0 3px rgba(217,118,46,.22);border-radius:8px}
[id]{scroll-margin-top:92px}

/* ---------- layout ---------- */
.layout{min-height:100vh}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 48px}
.content{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
main{flex:1}

/* ---------- sidebar ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:var(--brand-deep);
  display:flex;flex-direction:column;
  padding:30px 18px 22px;z-index:1040;overflow-y:auto;
}
.brand{display:inline-block;padding:2px 10px 0;text-decoration:none}
.brand-main{display:block;font-size:26px;font-weight:700;color:#fff;line-height:1.15;letter-spacing:.06em}
.brand-sub{display:block;font-size:12.5px;font-weight:500;color:rgba(255,255,255,.72);margin-top:2px;letter-spacing:.04em}
.side-menu{margin-top:34px;display:flex;flex-direction:column;gap:4px}
.side-menu a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border-radius:10px;border-left:3px solid transparent;
  color:rgba(255,255,255,.78);font-size:15px;font-weight:500;
  transition:background .22s ease,color .22s ease,border-color .22s ease;
}
.side-menu a .arrow{opacity:0;transform:translateX(-4px);transition:opacity .22s ease,transform .22s ease;font-size:15px;line-height:1}
.side-menu a:hover{background:rgba(255,255,255,.08);color:#fff}
.side-menu a:hover .arrow{opacity:1;transform:translateX(0)}
.side-menu a.active{background:var(--brand-tint);color:var(--brand-deep);border-left-color:var(--accent);font-weight:700}
.side-menu a.active .arrow{opacity:.7;transform:translateX(0)}
.side-foot{margin-top:auto;padding:20px 10px 4px;border-top:1px solid rgba(255,255,255,.14)}
.side-foot p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.62);margin:0 0 14px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:500;line-height:1;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  text-align:center;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px -14px rgba(217,118,46,.9)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand);color:#fff;transform:translateY(-1px)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-ghost-light:hover{background:#fff;color:var(--brand);border-color:#fff;transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* ---------- mobile bar ---------- */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:1030;
  background:var(--brand-deep);
  padding:12px 20px;
  align-items:center;justify-content:space-between;
  box-shadow:0 6px 18px -12px rgba(10,55,53,.9);
}
.brand--sm{padding:0}
.brand--sm .brand-main{font-size:20px}
.brand--sm .brand-sub{font-size:11px}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px}
.nav-toggle:hover{background:rgba(255,255,255,.18)}

/* ---------- drawer ---------- */
.drawer{background:var(--brand-deep)!important;color:rgba(255,255,255,.8);width:290px!important;border:0!important}
.drawer .offcanvas-header{padding:20px 20px 16px;border-bottom:1px solid rgba(255,255,255,.14)}
.drawer .offcanvas-body{padding:20px;display:flex;flex-direction:column}
.drawer .side-menu{margin-top:6px}
.drawer .side-menu a{min-height:48px;font-size:15px}
.drawer-close{
  width:34px;height:34px;border-radius:50%;background:transparent;
  border:1px solid rgba(255,255,255,.28);color:#fff;font-size:16px;line-height:1;cursor:pointer;
}
.drawer-close:hover{background:rgba(255,255,255,.14)}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--bg);border-bottom:1px solid var(--line)}
.crumbs{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:14px 0;font-size:13px;color:var(--ink-soft)}
.crumbs a{color:var(--ink-soft)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{opacity:.45}
.crumbs .cur{color:var(--brand);font-weight:500}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;isolation:isolate;
  background:var(--brand-deep);color:#fff;
  padding:58px 0 62px;
}
.page-hero::before{
  content:"";position:absolute;top:0;right:0;bottom:0;width:54%;z-index:-2;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.35;
}
.page-hero::after{
  content:"";position:absolute;top:0;right:0;bottom:0;width:54%;z-index:-1;
  background:linear-gradient(90deg,var(--brand-deep) 0%,rgba(10,55,53,.1) 100%);
}
.hero-tag{
  display:inline-block;padding:4px 14px;margin-bottom:16px;
  border-radius:999px;border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.12);color:#fff;
  font-size:13px;font-weight:500;letter-spacing:.04em;
}
.page-hero h1{
  font-size:clamp(28px,3.2vw,44px);line-height:1.28;letter-spacing:-.01em;
  margin:0 0 14px;max-width:780px;color:#fff;
}
.hero-lead{font-size:16px;line-height:1.8;color:rgba(255,255,255,.8);max-width:620px;margin:0}

/* ---------- stat strip ---------- */
.stat-strip{border-bottom:1px solid var(--line);background:transparent}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);padding:26px 0}
.stat{padding:0 24px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0;padding-left:0}
.stat .num{display:block;font-size:28px;font-weight:700;color:var(--brand);line-height:1.2}
.stat .lbl{display:block;font-size:13px;color:var(--ink-soft);margin-top:2px}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section--first{padding-top:56px}
.sec-head{max-width:760px;margin-bottom:32px}
.sec-eyebrow{
  display:inline-block;padding:4px 12px;margin-bottom:14px;
  background:var(--accent-tint);color:#A1500F;
  border-radius:999px;font-size:13px;font-weight:500;letter-spacing:.02em;
}
.sec-head h2{font-size:30px;line-height:1.35;margin:0 0 12px}
.sec-desc{font-size:16px;color:var(--ink-soft);margin:0}

.prose{max-width:760px;font-size:16px;line-height:1.9;color:#2B3A38}
.prose p{margin:0 0 18px}
.prose p:last-child{margin-bottom:0}

/* ---------- anchor pills ---------- */
.anchor-bar{
  display:flex;gap:10px;overflow-x:auto;padding:4px 0 6px;margin-top:32px;
  scrollbar-width:none;-webkit-overflow-scrolling:touch;
}
.anchor-bar::-webkit-scrollbar{display:none}
.anchor-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;
  padding:9px 18px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);
  color:var(--brand);font-size:14px;font-weight:500;white-space:nowrap;
  transition:background .22s ease,color .22s ease,border-color .22s ease;
}
.anchor-pill:hover{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.g-card{
  display:grid;grid-template-columns:152px 1fr;
  background:var(--surface);border:1px solid var(--line);
  border-radius:16px;overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.g-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.g-card .thumb{position:relative;overflow:hidden;background:var(--brand-tint)}
.g-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.g-card:hover .thumb img{transform:scale(1.04)}
.g-card .body{padding:20px 22px;display:flex;flex-direction:column}
.tag{
  align-self:flex-start;display:inline-block;
  padding:2px 10px;margin-bottom:9px;
  background:var(--brand-tint);color:var(--brand);
  border-radius:999px;font-size:12px;font-weight:500;
}
.g-card h3{font-size:18px;line-height:1.45;margin:0 0 8px}
.g-card p{
  font-size:14px;line-height:1.75;color:var(--ink-soft);margin:0 0 14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.g-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--brand);
}
.g-link .arw{transition:transform .22s ease}
.g-link:hover{color:var(--accent)}
.g-link:hover .arw{transform:translateX(4px)}

/* ---------- steps ---------- */
.panel{
  background:var(--surface);border:1px solid var(--line);
  border-radius:16px;padding:32px 30px;box-shadow:var(--shadow-1);
}
.steps{display:flex;flex-direction:column;max-width:820px}
.step{position:relative;padding:0 0 28px 48px}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:15px;top:34px;bottom:0;
  width:2px;background:var(--line);
}
.step:last-child::before{display:none}
.step-num{
  position:absolute;left:0;top:0;
  width:32px;height:32px;border-radius:50%;
  background:var(--accent-tint);color:#A1500F;
  font-size:14px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.step h3{font-size:19px;line-height:1.45;margin:4px 0 6px}
.step p{font-size:15px;line-height:1.8;color:var(--ink-soft);margin:0;max-width:660px}

/* ---------- faq ---------- */
.faq{max-width:860px}
.faq .accordion-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:16px;overflow:hidden;margin-bottom:12px;
}
.faq .accordion-header{margin:0}
.faq .accordion-button{
  background:transparent;background-image:none;box-shadow:none;
  color:var(--ink);font-size:16px;font-weight:500;line-height:1.6;
  padding:18px 22px;border-radius:16px;
}
.faq .accordion-button::after{
  content:"›";background-image:none!important;
  width:auto;height:auto;font-size:22px;line-height:1;
  color:var(--brand);transform:rotate(90deg);
  margin-left:14px;transition:transform .22s ease;
}
.faq .accordion-button:not(.collapsed){
  background:var(--brand-tint);background-image:none;
  color:var(--brand);box-shadow:none;
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(-90deg)}
.faq .accordion-button:focus{box-shadow:none;border-color:var(--line)}
.faq .accordion-body{
  padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-soft);
}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand);color:#fff;
  border-radius:20px;padding:42px 46px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--shadow-2);
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-80px;
  width:260px;height:260px;border-radius:50%;
  border:2px solid rgba(255,255,255,.12);
}
.cta-band h2{font-size:26px;line-height:1.4;margin:0 0 8px;color:#fff;position:relative}
.cta-band p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.78);margin:0;position:relative}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.72);margin-top:72px;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px}
.f-brand{display:block;margin-bottom:0}
.f-brand .f-main{display:block;font-size:22px;font-weight:700;color:#fff;line-height:1.2;letter-spacing:.05em}
.f-brand .f-sub{display:block;font-size:12.5px;font-weight:500;color:rgba(255,255,255,.7);margin-top:2px;letter-spacing:.03em}
.f-desc{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.62);margin:14px 0 0;max-width:330px}
.site-footer h4{font-size:14px;font-weight:500;color:#fff;margin:0 0 16px;letter-spacing:.02em}
.site-footer a{display:block;color:rgba(255,255,255,.72);font-size:14px;line-height:1.6;margin-bottom:8px}
.site-footer a:hover{color:var(--accent)}
.footer-list li{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.62)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:18px 0 24px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  :root{--nav-w:208px}
  .wrap{padding:0 32px}
  .sec-head h2{font-size:26px}
  .cta-band h2{font-size:24px}
  .card-grid{gap:20px}
  .g-card{grid-template-columns:130px 1fr}
  .g-card .body{padding:18px 18px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .content{margin-left:0}
  .mobile-bar{display:flex}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:48px 0}
  .cta-band{padding:34px 30px;flex-direction:column;align-items:flex-start}
  .site-footer{margin-top:56px;padding-top:44px}
}
@media (max-width:767px){
  .wrap{padding:0 20px}
  .page-hero{padding:40px 0 44px}
  .page-hero::before{width:100%;opacity:.18}
  .page-hero::after{width:100%}
  .page-hero h1{font-size:27px;line-height:1.35}
  .hero-lead{font-size:15px}
  .sec-head h2{font-size:23px}
  .stat-grid{grid-template-columns:1fr;gap:16px;padding:22px 0}
  .stat{padding:0;border-left:0;display:flex;align-items:baseline;gap:10px}
  .stat .num{font-size:22px}
  .g-card{grid-template-columns:1fr}
  .g-card .thumb{height:172px}
  .g-card p{-webkit-line-clamp:3}
  .panel{padding:24px 20px}
  .step{padding-left:42px}
  .step h3{font-size:17px}
  .faq .accordion-button{font-size:15px;padding:16px 18px}
  .faq .accordion-body{padding:0 18px 18px}
  .cta-band{padding:28px 22px;border-radius:16px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category2 */
:root{
  --brand:#0F4B4A;
  --brand-deep:#0A3735;
  --brand-tint:#E4EEEA;
  --accent:#D9762E;
  --accent-deep:#C4651F;
  --accent-tint:#FBEADF;
  --bg:#F7F3EA;
  --surface:#FFFFFF;
  --ink:#12211F;
  --ink-soft:#4E605D;
  --line:#DFD9C9;
  --shadow-1:0 1px 2px rgba(10,55,53,.05),0 8px 24px -12px rgba(10,55,53,.18);
  --shadow-2:0 18px 40px -16px rgba(10,55,53,.28);
  --r-card:16px;
  --r-img:20px;
  --r-input:10px;
  --r-pill:999px;
  --side-w:248px;
  --bs-body-font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--accent)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
::selection{background:var(--accent-tint);color:var(--brand-deep)}

/* 布局骨架 */
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 48px}
.page-body{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column}
.page-body > main{flex:1 0 auto}

/* 左栏 */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:var(--side-w);
  background:var(--brand-deep);
  padding:28px 20px 24px;
  display:flex;flex-direction:column;
  overflow-y:auto;z-index:1030;
}
.side-nav::before{
  content:"";position:absolute;right:-80px;bottom:70px;width:210px;height:210px;
  border:1px solid rgba(255,255,255,.09);border-radius:50%;pointer-events:none;
}
.brand-link{display:block;padding:0 8px 20px;border-bottom:1px solid rgba(255,255,255,.14);margin-bottom:20px}
.brand-main{display:block;font-size:26px;font-weight:700;color:#fff;line-height:1.2;letter-spacing:.02em}
.brand-sub{display:block;font-size:13.5px;font-weight:500;color:rgba(255,255,255,.74);margin-top:2px;letter-spacing:.06em}
.side-menu{display:flex;flex-direction:column;gap:4px}
.side-menu a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:11px 12px;border-radius:10px;
  border-left:3px solid transparent;
  color:rgba(255,255,255,.78);font-size:15px;font-weight:500;
  transition:background .22s ease,color .22s ease,border-color .22s ease;
}
.side-menu a .arrow{font-size:15px;opacity:0;transform:translateX(-5px);transition:opacity .22s ease,transform .22s ease}
.side-menu a:hover{background:rgba(228,238,234,.14);color:#fff}
.side-menu a:hover .arrow{opacity:1;transform:translateX(0)}
.side-menu a.active{background:var(--brand-tint);color:var(--brand-deep);border-left-color:var(--accent);font-weight:700}
.side-menu a.active .arrow{opacity:.6;transform:translateX(0)}
.side-contact{margin-top:auto;padding:18px 12px 0;border-top:1px solid rgba(255,255,255,.14)}
.side-contact p{margin:0 0 14px;font-size:13px;line-height:1.7;color:rgba(255,255,255,.72)}
.side-contact .btn-main{width:100%;height:42px;font-size:14px;padding:0 16px;justify-content:center}

/* 移动顶栏 */
.mobile-bar{display:none}
.nav-drawer{background:var(--brand-deep);color:#fff;width:296px}
.nav-drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.14);padding:18px 20px}
.nav-drawer .btn-close{filter:invert(1);opacity:.7}
.nav-drawer .btn-close:hover{opacity:1}
.drawer-brand .d-main{display:block;font-size:22px;font-weight:700;color:#fff;line-height:1.2}
.drawer-brand .d-sub{display:block;font-size:12px;color:rgba(255,255,255,.72);margin-top:2px;letter-spacing:.06em}
.nav-drawer .offcanvas-body{padding:16px 16px 0}
.nav-drawer .side-menu a{padding:14px 12px;min-height:48px}
.nav-drawer .side-contact{margin:18px 16px 0;padding:16px 0 20px}

/* 通用组件 */
.btn-main,.btn-ghost,.btn-light-out{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;letter-spacing:.01em;border:1.5px solid transparent;
  cursor:pointer;transition:background .22s ease,color .22s ease,transform .18s ease,border-color .22s ease,box-shadow .22s ease;
}
.btn-main{background:var(--accent);color:#fff;box-shadow:0 10px 22px -14px rgba(217,118,46,.9)}
.btn-main:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px)}
.btn-main:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand);color:#fff}
.btn-light-out{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-light-out:hover{background:#fff;color:var(--brand-deep);border-color:#fff}
.badge-tag{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--accent-tint);color:var(--accent-deep);
  font-size:13px;font-weight:500;padding:5px 13px;border-radius:var(--r-pill);
  margin-bottom:14px;letter-spacing:.02em;
}
.badge-brand{
  display:inline-flex;align-items:center;
  background:var(--brand-tint);color:var(--brand);
  font-size:12px;font-weight:500;padding:4px 11px;border-radius:var(--r-pill);
}

/* 面包屑 */
.crumb-bar{background:var(--bg);border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:14px 0;font-size:13px;color:var(--ink-soft)}
.crumb a{color:var(--ink-soft)}
.crumb a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.crumb .sep{color:#c8c0ad}
.crumb .current{color:var(--brand);font-weight:500}

/* 页头条带 */
.page-head{position:relative;overflow:hidden;background:var(--brand-deep);color:#fff;padding:54px 0 62px}
.page-head::after{
  content:"";position:absolute;top:0;right:0;bottom:0;width:48%;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.35;
  -webkit-mask-image:linear-gradient(to right,rgba(0,0,0,0) 0%,rgba(0,0,0,1) 55%);
  mask-image:linear-gradient(to right,rgba(0,0,0,0) 0%,rgba(0,0,0,1) 55%);
  pointer-events:none;
}
.page-head .wrap{position:relative;z-index:2}
.page-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;
  color:rgba(255,255,255,.66);margin-bottom:16px;
}
.page-head .kicker::before{content:"";display:block;width:26px;height:1px;background:var(--accent)}
.page-title{font-size:clamp(30px,3.2vw,44px);line-height:1.25;font-weight:700;max-width:820px;color:#fff}
.page-title em{font-style:normal;color:var(--accent-tint);box-shadow:inset 0 -10px 0 rgba(217,118,46,.35)}
.page-lead{margin:18px 0 0;font-size:15px;line-height:1.75;color:rgba(255,255,255,.78);max-width:640px}

/* 板块 */
.section{padding:88px 0}
.section.tight{padding:56px 0 88px}
.section.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:34px}
.sec-title{font-size:30px;line-height:1.35;margin-bottom:14px}
.sec-title .bar{display:block;width:44px;height:3px;background:var(--accent);border-radius:3px;margin-top:16px}
.sec-desc{font-size:16px;line-height:1.85;color:var(--ink-soft);max-width:760px;margin:0}

/* 导语 */
.intro-text{max-width:760px}
.intro-text p{font-size:16px;line-height:1.9;color:var(--ink-soft)}
.intro-text strong{color:var(--brand);font-weight:700}
.pull-quote{
  max-width:760px;margin:28px 0 0;padding:20px 24px;
  background:var(--brand-tint);border-left:3px solid var(--accent);
  border-radius:0 var(--r-card) var(--r-card) 0;
  font-size:15px;line-height:1.85;color:var(--brand-deep);
}

/* 锚点条 */
.anchor-strip{display:flex;gap:10px;overflow-x:auto;padding:4px 0 22px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.anchor-strip::-webkit-scrollbar{height:0}
.anchor-strip a{
  white-space:nowrap;padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--surface);
  color:var(--brand);font-size:14px;font-weight:500;
  transition:background .22s ease,border-color .22s ease,color .22s ease;
}
.anchor-strip a:hover{background:var(--brand-tint);border-color:var(--brand);color:var(--brand-deep)}

/* 步骤时间轴 */
.steps{max-width:760px;position:relative;margin-top:8px}
.steps li{position:relative;padding:0 0 32px 46px}
.steps li::before{content:"";position:absolute;left:15px;top:32px;bottom:0;width:1px;background:var(--line)}
.steps li:last-child{padding-bottom:0}
.steps li:last-child::before{display:none}
.steps .dot{
  position:absolute;left:0;top:0;width:31px;height:31px;border-radius:50%;
  background:var(--brand-tint);color:var(--brand);border:1px solid #cfe0da;
  display:grid;place-items:center;font-size:13px;font-weight:700;
}
.steps h3{font-size:20px;line-height:1.45;margin-bottom:6px}
.steps p{margin:0;font-size:15px;line-height:1.8;color:var(--ink-soft);max-width:660px}

/* 流程卡 */
.flow-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.flow-card{
  display:grid;grid-template-columns:38% 1fr;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.flow-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.flow-thumb{position:relative;overflow:hidden}
.flow-thumb img{width:100%;height:100%;object-fit:cover;min-height:100%}
.flow-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(140deg,rgba(10,55,53,.12),rgba(10,55,53,0) 60%)}
.flow-body{padding:22px 24px 24px;display:flex;flex-direction:column}
.flow-body .num{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--accent);margin-bottom:8px}
.flow-body h3{font-size:19px;line-height:1.45;margin-bottom:8px}
.flow-body p{margin:0 0 14px;font-size:14.5px;line-height:1.75;color:var(--ink-soft)}
.flow-more{margin-top:auto;font-size:14px;font-weight:500;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.flow-more::after{content:"›";font-size:16px;transition:transform .22s ease}
.flow-more:hover{color:var(--accent)}
.flow-more:hover::after{transform:translateX(3px)}

/* 数据条带 */
.metrics{background:var(--brand-deep);color:#fff;padding:56px 0}
.metrics .sec-title{color:#fff;font-size:26px;margin-bottom:32px}
.metrics-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.metric{padding:0 26px;border-left:1px solid rgba(255,255,255,.16)}
.metric:first-child{border-left:0;padding-left:0}
.metric .num{font-size:40px;font-weight:700;line-height:1.1;color:#fff}
.metric .num small{font-size:15px;font-weight:500;margin-left:5px;color:rgba(255,255,255,.72)}
.metric p{margin:10px 0 0;font-size:13px;line-height:1.7;color:rgba(255,255,255,.72)}

/* FAQ */
.faq{max-width:820px}
.faq .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;background:var(--surface);margin-bottom:12px;
  box-shadow:0 1px 2px rgba(10,55,53,.04);
}
.faq .accordion-item:last-child{margin-bottom:0}
.faq .accordion-button{
  width:100%;background:var(--surface);color:var(--ink);
  font-size:17px;font-weight:500;line-height:1.6;padding:18px 54px 18px 22px;
  box-shadow:none;border:0;border-radius:0;
}
.faq .accordion-button:not(.collapsed){background:var(--brand-tint);color:var(--brand)}
.faq .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq .accordion-button:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.faq .accordion-button::after{
  content:"";width:10px;height:10px;margin-left:auto;flex-shrink:0;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);background-image:none;
  transition:transform .22s ease,border-color .22s ease;
  position:absolute;right:24px;
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);border-color:var(--accent)}
.faq .accordion-body{padding:6px 22px 22px;font-size:15px;line-height:1.85;color:var(--ink-soft)}
.faq .accordion-button:not(.collapsed) + .accordion-collapse .accordion-body,
.faq .accordion-collapse.show .accordion-body{padding-top:16px}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;background:var(--brand);color:#fff;
  border-radius:var(--r-img);padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:240px;height:240px;
  border:1px solid rgba(255,255,255,.16);border-radius:50%;pointer-events:none;
}
.cta-band::before{
  content:"";position:absolute;left:-40px;top:-70px;width:170px;height:170px;
  border:1px solid rgba(255,255,255,.1);border-radius:50%;pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:560px}
.cta-copy h2{font-size:26px;line-height:1.4;color:#fff;margin-bottom:10px}
.cta-copy p{margin:0;font-size:15px;line-height:1.8;color:rgba(255,255,255,.8)}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap}

/* 页脚 */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.f-brand{display:block;margin-bottom:4px}
.f-brand .f-main{display:block;font-size:24px;font-weight:700;color:#fff;line-height:1.2}
.f-brand .f-sub{display:block;font-size:12.5px;font-weight:500;color:rgba(255,255,255,.74);margin-top:2px;letter-spacing:.06em}
.f-desc{margin:14px 0 0;font-size:13.5px;line-height:1.85;max-width:330px;color:rgba(255,255,255,.72)}
.site-footer h4{font-size:14px;font-weight:500;color:#fff;margin-bottom:16px}
.site-footer a{display:block;color:rgba(255,255,255,.72);font-size:14px;padding:5px 0;transition:color .22s ease}
.site-footer a:hover{color:var(--accent)}
.footer-list{font-size:13.5px;line-height:1.95;color:rgba(255,255,255,.72)}
.footer-list li{position:relative;padding-left:12px}
.footer-list li::before{content:"";position:absolute;left:0;top:11px;width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.34)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* 响应式 */
@media (max-width:1279px){
  :root{--side-w:208px}
  .side-nav{padding:24px 16px}
  .brand-main{font-size:23px}
  .brand-sub{font-size:12.5px}
  .side-menu a{font-size:14.5px;padding:10px 11px}
  .wrap{padding:0 32px}
  .flow-grid{grid-template-columns:1fr}
  .section{padding:72px 0}
}
@media (max-width:1023px){
  .side-nav{display:none}
  .page-body{margin-left:0;padding-top:64px}
  .mobile-bar{
    display:flex;align-items:center;justify-content:space-between;
    position:fixed;top:0;left:0;right:0;height:64px;padding:0 20px;
    background:var(--brand-deep);color:#fff;z-index:1035;
    box-shadow:0 2px 14px rgba(10,55,53,.22);
  }
  .m-brand{display:inline-flex;align-items:baseline;gap:6px}
  .m-brand .m-main{font-size:20px;font-weight:700;color:#fff;line-height:1}
  .m-brand .m-sub{font-size:11px;color:rgba(255,255,255,.72);letter-spacing:.06em}
  .m-toggle{
    width:44px;height:44px;border:1px solid rgba(255,255,255,.26);
    background:transparent;border-radius:10px;
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
    transition:background .22s ease,border-color .22s ease;
  }
  .m-toggle:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.5)}
  .m-toggle span{width:18px;height:2px;background:#fff;border-radius:2px;display:block}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:0}
  .metric{padding:0 0 24px;border-left:0}
  .metric:nth-child(even){padding-left:24px;border-left:1px solid rgba(255,255,255,.16)}
  .cta-band{padding:36px 32px}
  .section{padding:64px 0}
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.75}
  .wrap{padding:0 20px}
  .page-head{padding:40px 0 46px}
  .page-head::after{width:70%;opacity:.24}
  .page-title{font-size:28px}
  .page-lead{font-size:14.5px}
  .section{padding:56px 0}
  .section.tight{padding:40px 0 56px}
  .sec-title{font-size:24px}
  .sec-desc{font-size:15px}
  .intro-text p{font-size:15px;line-height:1.85}
  .flow-card{grid-template-columns:1fr}
  .flow-thumb{aspect-ratio:16/10;min-height:0}
  .flow-thumb img{min-height:0;height:100%}
  .flow-body{padding:20px}
  .steps li{padding-left:40px}
  .steps h3{font-size:18px}
  .metrics{padding:44px 0}
  .metrics .sec-title{font-size:22px}
  .metric .num{font-size:32px}
  .faq .accordion-button{font-size:16px;padding:16px 48px 16px 18px}
  .faq .accordion-button::after{right:20px}
  .cta-band{padding:28px 22px;border-radius:16px;gap:22px}
  .cta-copy h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-light-out{width:100%}
  .side-contact .btn-main{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:48px 0 0;margin-top:56px}
  .footer-bottom{flex-direction:column;gap:8px}
  .nav-drawer{width:88%}
}

/* roulang page: category3 */
:root{
  --brand:#0F4B4A;
  --brand-deep:#0A3735;
  --brand-tint:#E4EEEA;
  --accent:#D9762E;
  --accent-dark:#C4651F;
  --accent-tint:#FBEADF;
  --bg:#F7F3EA;
  --surface:#FFFFFF;
  --ink:#12211F;
  --ink-soft:#4E605D;
  --line:#DFD9C9;
  --r-card:16px;
  --r-img:20px;
  --r-field:10px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(10,55,53,.05), 0 8px 24px -12px rgba(10,55,53,.18);
  --shadow-2:0 18px 40px -16px rgba(10,55,53,.28);
  --sidebar-w:248px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.35;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;box-shadow:0 0 0 3px var(--accent-tint);}
::selection{background:var(--accent-tint);color:var(--brand-deep);}

.app{display:flex;min-height:100vh;align-items:stretch;}
.main-wrap{flex:1 1 auto;min-width:0;margin-left:var(--sidebar-w);display:flex;flex-direction:column;}
main{flex:1 1 auto;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 48px;}

/* ---------- 左侧竖向导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  z-index:1040;
  background:var(--brand-deep);
  color:rgba(255,255,255,.78);
  display:flex;flex-direction:column;
  padding:30px 18px 24px;
  overflow-y:auto;
}
.sidebar::-webkit-scrollbar{width:6px;}
.sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.16);border-radius:999px;}
.brand{display:block;padding:0 10px 26px;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:22px;}
.brand-main{display:block;font-size:26px;font-weight:700;color:#fff;letter-spacing:.06em;line-height:1.15;}
.brand-sub{display:block;font-size:13px;font-weight:500;color:rgba(255,255,255,.62);letter-spacing:.16em;margin-top:2px;}
.side-menu{display:flex;flex-direction:column;gap:4px;}
.side-menu a{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;
  padding:11px 12px 11px 13px;
  border-radius:10px;
  border-left:3px solid transparent;
  font-size:15px;font-weight:500;
  color:rgba(255,255,255,.78);
  transition:background .22s ease,color .22s ease,border-color .22s ease;
}
.side-menu a:hover{background:rgba(255,255,255,.09);color:#fff;}
.side-menu a.active{background:var(--brand-tint);color:var(--brand);border-left-color:var(--accent);font-weight:700;}
.side-menu .arrow{opacity:0;transform:translateX(-4px);transition:opacity .22s ease,transform .22s ease;font-size:16px;}
.side-menu a:hover .arrow,.side-menu a.active .arrow{opacity:1;transform:translateX(0);}
.side-contact{margin-top:auto;padding:22px 10px 0;border-top:1px solid rgba(255,255,255,.12);}
.side-contact p{font-size:13px;line-height:1.75;color:rgba(255,255,255,.6);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-pill);
  font-size:15px;font-weight:500;letter-spacing:.02em;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px -14px rgba(217,118,46,.9);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand);color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:1030;
  align-items:center;justify-content:space-between;
  padding:12px 20px;
  background:var(--brand-deep);color:#fff;
  box-shadow:0 6px 18px -10px rgba(10,55,53,.7);
}
.topbar .brand{padding:0;border:0;margin:0;}
.topbar .brand-main{font-size:20px;}
.topbar .brand-sub{font-size:11px;letter-spacing:.12em;}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.22);
  background:transparent;color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:20px;line-height:1;cursor:pointer;
  transition:background .2s ease;
}
.nav-toggle:hover{background:rgba(255,255,255,.12);}
.offcanvas.site-drawer{background:var(--brand-deep);color:rgba(255,255,255,.8);width:min(330px,86vw);border:0;}
.site-drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:20px 20px 16px;}
.site-drawer .offcanvas-body{padding:18px 18px 28px;}
.site-drawer .side-menu a{padding:14px 12px;font-size:15px;min-height:48px;}
.site-drawer .btn-close{filter:invert(1) grayscale(1) brightness(2);opacity:.7;}

/* ---------- 页面头条带 ---------- */
.page-head{
  position:relative;overflow:hidden;
  background:var(--brand-deep);color:#fff;
  padding:52px 0 64px;
}
.page-head-img{
  position:absolute;top:0;right:0;bottom:0;width:54%;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.35;
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,rgba(0,0,0,.7) 42%,#000 100%);
  mask-image:linear-gradient(90deg,transparent 0%,rgba(0,0,0,.7) 42%,#000 100%);
}
.page-head-wave{
  position:absolute;top:-20%;right:-8%;width:620px;height:620px;
  pointer-events:none;
}
.page-head-inner{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.58);margin-bottom:20px;}
.crumb a{color:rgba(255,255,255,.74);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{opacity:.45;}
.page-head h1{
  color:#fff;
  font-size:clamp(28px,3.2vw,42px);
  line-height:1.25;
  max-width:780px;
}
.page-lead{
  margin-top:16px;font-size:15px;line-height:1.8;
  color:rgba(255,255,255,.72);
  max-width:640px;
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-tight{padding:56px 0;}
.section-alt{background:var(--brand-tint);}
.sec-tag{
  display:inline-block;margin-bottom:16px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--accent-tint);color:var(--accent-dark);
  font-size:13px;font-weight:500;letter-spacing:.04em;
}
.sec-head{max-width:780px;margin-bottom:40px;}
.sec-head h2{font-size:30px;line-height:1.35;}
.sec-head p{margin-top:14px;color:var(--ink-soft);font-size:16px;line-height:1.8;}

/* ---------- 分类导语 ---------- */
.intro-block{max-width:820px;}
.intro-block p{color:var(--ink-soft);font-size:16px;line-height:1.9;}
.intro-block p + p{margin-top:18px;}
.intro-block strong{color:var(--brand);font-weight:700;}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;gap:24px;}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}
.sec-card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.sec-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#CFC7B3;}
.sec-card-media{position:relative;background:var(--brand-tint);}
.sec-card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.sec-card-body{padding:24px;display:flex;flex-direction:column;flex:1 1 auto;}
.badge-soft{
  align-self:flex-start;
  display:inline-block;margin-bottom:12px;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--brand-tint);color:var(--brand);
  font-size:12.5px;font-weight:500;letter-spacing:.03em;
}
.sec-card-body h3{font-size:19px;line-height:1.45;margin-bottom:10px;}
.sec-card-body p{
  color:var(--ink-soft);font-size:14.5px;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:18px;
}
.card-link{
  margin-top:auto;
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--brand);
}
.card-link:hover{color:var(--accent);}
.card-link span{transition:transform .2s ease;}
.card-link:hover span{transform:translateX(3px);}

/* ---------- 页内锚点条 ---------- */
.anchor-wrap{padding:0 0 40px;}
.anchor-bar{
  display:flex;gap:12px;overflow-x:auto;
  padding:8px 2px 14px;
  scrollbar-width:thin;
}
.anchor-bar::-webkit-scrollbar{height:5px;}
.anchor-bar::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px;}
.anchor-bar a{
  flex:0 0 auto;
  padding:10px 20px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--surface);
  color:var(--ink);font-size:14px;font-weight:500;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.anchor-bar a:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateY(-1px);}

/* ---------- 分栏 + 步骤 ---------- */
.split{display:grid;grid-template-columns:minmax(0,360px) minmax(0,1fr);gap:56px;align-items:start;}
.split-aside h2{font-size:28px;line-height:1.35;}
.split-aside p{margin-top:14px;color:var(--ink-soft);font-size:15px;line-height:1.85;}
.step-list{position:relative;}
.step-list li{
  position:relative;
  padding:0 0 36px 76px;
}
.step-list li:last-child{padding-bottom:0;}
.step-list li::before{
  content:attr(data-n);
  position:absolute;left:0;top:0;
  width:48px;height:48px;border-radius:var(--r-pill);
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--accent);
  font-size:15px;font-weight:700;letter-spacing:.04em;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-1);
}
.step-list li::after{
  content:"";position:absolute;left:23.5px;top:56px;bottom:10px;width:1px;
  background:var(--line);
}
.step-list li:last-child::after{display:none;}
.step-list h3{font-size:18px;line-height:1.45;margin-bottom:8px;}
.step-list p{color:var(--ink-soft);font-size:15px;line-height:1.85;max-width:760px;}

/* ---------- 图文特性块 ---------- */
.feature{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-img);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.feature-media{position:relative;min-height:340px;}
.feature-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.feature-body{padding:48px;display:flex;flex-direction:column;justify-content:center;}
.feature-body h2{font-size:26px;line-height:1.4;margin-bottom:16px;}
.check-list li{
  position:relative;padding-left:28px;
  color:var(--ink-soft);font-size:15px;line-height:1.85;
  margin-bottom:14px;
}
.check-list li:last-child{margin-bottom:0;}
.check-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:2px;background:var(--accent);
}

/* ---------- FAQ ---------- */
.faq{max-width:860px;}
.faq .accordion-item{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--surface);
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:none;
}
.faq .accordion-item:last-child{margin-bottom:0;}
.faq .accordion-button{
  position:relative;
  width:100%;
  padding:20px 60px 20px 24px;
  background:var(--surface);
  color:var(--ink);
  font-size:16px;font-weight:500;line-height:1.6;
  text-align:left;
  border:0;
  border-radius:var(--r-card) !important;
  box-shadow:none !important;
  transition:background .2s ease,color .2s ease;
}
.faq .accordion-button:not(.collapsed){
  background:var(--brand-tint);
  color:var(--brand);
  font-weight:700;
}
.faq .accordion-button:hover{background:var(--brand-tint);}
.faq .accordion-button::after{
  content:"";
  position:absolute;right:24px;top:50%;
  width:9px;height:9px;
  margin-top:-7px;
  border-right:2px solid currentColor;
  border-bottom:2px solid currentColor;
  transform:rotate(45deg);
  background-image:none;
  transition:transform .22s ease,margin-top .22s ease;
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);margin-top:-2px;}
.faq .accordion-button:focus{box-shadow:inset 0 0 0 2px var(--accent-tint) !important;}
.faq .accordion-body{
  padding:4px 24px 24px;
  color:var(--ink-soft);
  font-size:15px;line-height:1.85;
  background:var(--surface);
}
.faq .accordion-body p{max-width:760px;}

/* ---------- CTA 条带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand);
  color:#fff;
  padding:64px 0;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-120px;
  width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 0 0 40px rgba(255,255,255,.05), 0 0 0 96px rgba(255,255,255,.03);
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;
  gap:36px;flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:28px;line-height:1.35;}
.cta-inner p{margin-top:12px;color:rgba(255,255,255,.76);font-size:15px;line-height:1.8;max-width:620px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-deep);
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
  font-size:14px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
.f-brand{display:block;margin-bottom:16px;}
.f-main{display:block;font-size:22px;font-weight:700;color:#fff;letter-spacing:.06em;line-height:1.2;}
.f-sub{display:block;font-size:12px;font-weight:500;color:rgba(255,255,255,.58);letter-spacing:.14em;margin-top:2px;}
.f-desc{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px;}
.site-footer h4{font-size:14px;font-weight:500;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.site-footer a{
  display:block;
  color:rgba(255,255,255,.72);
  font-size:14px;line-height:1.6;
  padding:5px 0;
  transition:color .2s ease,transform .2s ease;
}
.site-footer a:hover{color:var(--accent);transform:translateX(2px);}
.footer-list li{
  font-size:13.5px;line-height:1.8;
  color:rgba(255,255,255,.62);
  padding:5px 0;
}
.footer-bottom{
  margin-top:44px;
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sidebar-w:208px;}
  .wrap{padding:0 32px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:40px;}
  .brand-main{font-size:23px;}
  .section{padding:72px 0;}
}
@media (max-width:1023px){
  .sidebar{display:none;}
  .main-wrap{margin-left:0;}
  .topbar{display:flex;}
  .wrap{padding:0 32px;}
  .split{grid-template-columns:minmax(0,1fr);gap:32px;}
  .feature{grid-template-columns:minmax(0,1fr);}
  .feature-media{min-height:260px;}
  .feature-body{padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-head{padding:40px 0 52px;}
}
@media (max-width:767px){
  .wrap{padding:0 20px;}
  .section{padding:56px 0;}
  .section-tight{padding:40px 0;}
  .grid-3{grid-template-columns:minmax(0,1fr);}
  .sec-head h2{font-size:24px;}
  .split-aside h2{font-size:22px;}
  .page-head h1{font-size:28px;}
  .page-head-img{width:70%;opacity:.28;}
  .feature-body{padding:26px;}
  .cta-band{padding:48px 0;}
  .cta-inner h2{font-size:22px;}
  .cta-inner .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .step-list li{padding-left:0;padding-top:64px;}
  .step-list li::after{left:23.5px;top:56px;bottom:auto;height:0;}
  .step-list li::after{display:none;}
  .intro-block p{font-size:15px;}
}
@media (max-width:520px){
  .topbar .brand-sub{display:block;font-size:10px;letter-spacing:.1em;}
  .btn{width:100%;}
  .sec-card-body{padding:20px;}
  .anchor-bar a{padding:9px 16px;font-size:13.5px;}
  .faq .accordion-button{font-size:15px;padding:18px 52px 18px 18px;}
  .faq .accordion-body{padding:2px 18px 20px;}
}

/* roulang page: category4 */
:root{
  --brand:#0F4B4A;
  --brand-deep:#0A3735;
  --brand-tint:#E4EEEA;
  --accent:#D9762E;
  --accent-hover:#C4651F;
  --accent-tint:#FBEADF;
  --bg:#F7F3EA;
  --surface:#FFFFFF;
  --ink:#12211F;
  --ink-soft:#4E605D;
  --line:#DFD9C9;
  --danger:#C0392B;
  --radius-card:16px;
  --radius-img:20px;
  --radius-field:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(10,55,53,.05),0 8px 24px -12px rgba(10,55,53,.18);
  --shadow-2:0 18px 40px -16px rgba(10,55,53,.28);
  --sidebar-w:248px;
  --pad-x:48px;
  --sec-gap:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",Inter,system-ui,sans-serif;
  font-size:16px;
  font-weight:400;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ink);}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  box-shadow:0 0 0 3px var(--accent-tint);
  border-radius:6px;
}
::selection{background:var(--brand-tint);color:var(--brand-deep);}

/* ---------- 布局骨架 ---------- */
.app-shell{min-height:100vh;}
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--brand-deep);
  color:rgba(255,255,255,.78);
  display:flex;
  flex-direction:column;
  padding:28px 20px 24px;
  z-index:60;
  overflow-y:auto;
}
.content{
  margin-left:var(--sidebar-w);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:var(--pad-x);
  padding-right:var(--pad-x);
}
main{flex:1 0 auto;}

/* ---------- 侧栏品牌 ---------- */
.brand{display:block;margin-bottom:30px;}
.brand .b-main{
  display:block;
  font-size:24px;
  font-weight:700;
  line-height:1.2;
  color:#fff;
  letter-spacing:-.01em;
}
.brand .b-sub{
  display:block;
  margin-top:2px;
  font-size:13px;
  font-weight:500;
  letter-spacing:.04em;
  color:var(--accent);
}
.side-menu{
  display:flex;
  flex-direction:column;
  gap:4px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
}
.side-menu a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:11px 12px;
  font-size:15px;
  font-weight:500;
  color:rgba(255,255,255,.78);
  border-radius:10px;
  border-left:3px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.side-menu a .arrow{
  opacity:0;
  transform:translateX(-6px);
  transition:opacity .2s ease,transform .2s ease;
  font-size:15px;
  line-height:1;
}
.side-menu a:hover{
  background:rgba(255,255,255,.08);
  color:#fff;
}
.side-menu a:hover .arrow{opacity:1;transform:translateX(0);}
.side-menu a.active{
  background:var(--brand-tint);
  color:var(--brand-deep);
  border-left-color:var(--accent);
  font-weight:700;
}
.side-menu a.active .arrow{opacity:1;transform:translateX(0);}
.side-foot{
  margin-top:auto;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;
  line-height:1.75;
  color:rgba(255,255,255,.72);
}
.side-foot p{margin-bottom:12px;}
.side-foot .side-tel{color:#fff;font-weight:500;}

/* ---------- 按钮 ---------- */
.btn-accent,.btn-ghost,.btn-line{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:500;
  letter-spacing:.01em;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-accent{
  background:var(--accent);
  border:1px solid var(--accent);
  color:#fff;
}
.btn-accent:hover{
  background:var(--accent-hover);
  border-color:var(--accent-hover);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-2);
}
.btn-accent:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{
  background:transparent;
  border:1.5px solid var(--brand);
  color:var(--brand);
}
.btn-ghost:hover{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(0);}
.btn-line{
  background:transparent;
  border:1.5px solid rgba(255,255,255,.55);
  color:#fff;
}
.btn-line:hover{
  background:#fff;
  border-color:#fff;
  color:var(--brand-deep);
  transform:translateY(-1px);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ---------- 移动端顶栏 ---------- */
.mobile-bar{
  display:none;
  position:sticky;
  top:0;
  z-index:70;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  background:var(--brand-deep);
  padding:12px 20px;
}
.mobile-bar .m-brand{display:block;}
.mobile-bar .m-main{display:block;font-size:19px;font-weight:700;color:#fff;line-height:1.2;letter-spacing:-.01em;}
.mobile-bar .m-sub{display:block;font-size:12px;font-weight:500;color:var(--accent);letter-spacing:.03em;margin-top:2px;}
.burger{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;height:44px;
  padding:0 10px;
  background:transparent;
  border:1px solid rgba(255,255,255,.32);
  border-radius:10px;
  cursor:pointer;
}
.burger span{display:block;height:2px;background:#fff;border-radius:2px;}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(10,55,53,.55);
  opacity:0;pointer-events:none;
  transition:opacity .25s ease;
  z-index:80;
}
.drawer-mask.open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;
  top:0;left:0;bottom:0;
  width:284px;
  max-width:86vw;
  background:var(--brand-deep);
  padding:24px 20px;
  overflow-y:auto;
  display:flex;
  flex-direction:column;
  transform:translateX(-102%);
  transition:transform .28s ease;
  z-index:90;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:22px;}
.drawer-close{
  width:38px;height:38px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.28);
  background:transparent;
  color:#fff;
  font-size:20px;
  line-height:1;
  cursor:pointer;
}
.drawer .side-menu a{padding:14px 12px;min-height:48px;}
.drawer .side-menu{margin-bottom:20px;}

/* ---------- 面包屑 ---------- */
.crumbs{
  padding-top:22px;
  font-size:13px;
  color:var(--ink-soft);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
}
.crumbs a{color:var(--ink-soft);}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{color:var(--line);}
.crumbs .cur{color:var(--brand);font-weight:500;}

/* ---------- 页头条带 ---------- */
.page-hero{
  position:relative;
  margin-top:18px;
  background:var(--brand-deep);
  color:#fff;
  overflow:hidden;
  border-radius:var(--radius-img);
  min-height:224px;
  display:flex;
  align-items:center;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0 0 0 42%;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.35;
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 58%);
  mask-image:linear-gradient(90deg,transparent 0%,#000 58%);
  pointer-events:none;
}
.page-hero::before{
  content:"";
  position:absolute;
  right:-70px;bottom:-90px;
  width:320px;height:320px;
  border:1.5px solid rgba(255,255,255,.14);
  border-radius:50% 50% 0 0;
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding-top:40px;padding-bottom:40px;}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
  font-size:13px;
  font-weight:500;
  color:#F6E3D4;
  margin-bottom:16px;
}
.hero-inner h1{
  color:#fff;
  font-size:clamp(30px,3.2vw,46px);
  line-height:1.25;
  max-width:820px;
  margin-bottom:14px;
}
.hero-lead{
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.82);
  max-width:620px;
  margin:0;
}

/* ---------- 通用板块 ---------- */
.section{padding-top:var(--sec-gap);}
.sec-head{max-width:760px;margin-bottom:32px;}
.sec-kicker{
  display:inline-block;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  background:var(--accent-tint);
  color:var(--accent-hover);
  font-size:13px;
  font-weight:500;
  letter-spacing:.02em;
  margin-bottom:14px;
}
.sec-title{font-size:30px;line-height:1.35;margin-bottom:12px;}
.sec-lead{font-size:16px;line-height:1.8;color:var(--ink-soft);max-width:760px;margin:0;}

/* ---------- 导语两栏 ---------- */
.intro-grid{
  display:grid;
  grid-template-columns:1.15fr 1fr;
  gap:40px;
  align-items:center;
}
.intro-text p{max-width:760px;color:var(--ink-soft);}
.intro-text p strong{color:var(--ink);font-weight:700;}
.intro-media{border-radius:var(--radius-img);overflow:hidden;box-shadow:var(--shadow-1);}
.intro-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}

/* ---------- 锚点条 ---------- */
.anchor-bar{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding:6px 0 14px;
  margin-top:32px;
  scrollbar-width:thin;
}
.anchor-bar a{
  flex:0 0 auto;
  padding:8px 18px;
  border-radius:var(--radius-pill);
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--brand);
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.anchor-bar a:hover{background:var(--brand);border-color:var(--brand);color:#fff;}

/* ---------- 问答卡（两列） ---------- */
.qa-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.qa-card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.qa-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-2);
  border-color:#CFE0DA;
}
.qa-top{display:flex;align-items:center;gap:12px;}
.qa-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:42px;height:32px;
  padding:0 10px;
  border-radius:var(--radius-pill);
  background:var(--accent-tint);
  color:var(--accent-hover);
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
}
.qa-card h3{
  font-size:20px;
  line-height:1.45;
  margin:0;
}
.qa-card p{
  color:var(--ink-soft);
  font-size:15px;
  line-height:1.8;
  margin:0;
}
.qa-link{
  margin-top:auto;
  padding-top:6px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:500;
  color:var(--brand);
  border-bottom:1px solid transparent;
  align-self:flex-start;
  transition:color .2s ease,gap .2s ease;
}
.qa-link:hover{color:var(--accent);gap:10px;}

/* ---------- FAQ 手风琴 ---------- */
.faq-list{max-width:900px;}
.faq-list .accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.faq-list .accordion-item:last-child{margin-bottom:0;}
.faq-list .accordion-button{
  position:relative;
  width:100%;
  background:var(--surface);
  color:var(--ink);
  font-size:17px;
  font-weight:500;
  line-height:1.5;
  padding:20px 56px 20px 24px;
  border:0;
  border-radius:0;
  box-shadow:none;
  transition:color .2s ease,background .2s ease;
}
.faq-list .accordion-button::before{
  content:"";
  position:absolute;
  left:0;top:18px;bottom:18px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--accent);
  opacity:0;
  transition:opacity .2s ease;
}
.faq-list .accordion-button:not(.collapsed){
  background:var(--surface);
  color:var(--brand);
  box-shadow:none;
}
.faq-list .accordion-button:not(.collapsed)::before{opacity:1;}
.faq-list .accordion-button:focus{box-shadow:none;outline:none;}
.faq-list .accordion-button:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:-2px;
  box-shadow:0 0 0 3px var(--accent-tint);
}
.faq-list .accordion-button::after{
  content:"";
  position:absolute;
  right:24px;
  top:26px;
  width:10px;height:10px;
  border-right:2px solid var(--brand);
  border-bottom:2px solid var(--brand);
  transform:rotate(45deg);
  background-image:none;
  margin:0;
  transition:transform .22s ease,border-color .2s ease;
}
.faq-list .accordion-button:not(.collapsed)::after{
  transform:rotate(-135deg);
  border-color:var(--accent);
  margin:0;
}
.faq-list .accordion-body{
  padding:0 24px 22px 24px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-soft);
}
.faq-list .accordion-body p{margin-bottom:10px;}

/* ---------- CTA 条带 ---------- */
.cta-band{
  position:relative;
  margin-top:var(--sec-gap);
  background:var(--brand);
  color:#fff;
  border-radius:var(--radius-img);
  overflow:hidden;
  padding:48px;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;top:-80px;
  width:260px;height:260px;
  border:1.5px solid rgba(255,255,255,.16);
  border-radius:0 0 50% 50%;
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-inner h2{
  color:#fff;
  font-size:28px;
  line-height:1.35;
  margin-bottom:10px;
}
.cta-inner p{
  color:rgba(255,255,255,.82);
  font-size:15px;
  line-height:1.8;
  max-width:560px;
  margin:0;
}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--sec-gap);
  background:var(--brand-deep);
  color:rgba(255,255,255,.72);
  padding-top:56px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:40px;
}
.f-brand{display:block;margin-bottom:14px;}
.f-brand .f-main{display:block;font-size:22px;font-weight:700;color:#fff;line-height:1.2;letter-spacing:-.01em;}
.f-brand .f-sub{display:block;margin-top:2px;font-size:13px;font-weight:500;color:var(--accent);letter-spacing:.03em;}
.f-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:340px;margin:0;}
.site-footer h4{
  font-size:14px;
  font-weight:500;
  color:#fff;
  margin:0 0 14px;
  letter-spacing:.02em;
}
.site-footer a{
  display:block;
  font-size:14px;
  line-height:2;
  color:rgba(255,255,255,.72);
}
.site-footer a:hover{color:var(--accent);}
.footer-list li{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.72);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:18px 0;
  display:flex;
  justify-content:space-between;
  gap:10px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ---------- 断点 ---------- */
@media (max-width:1279px){
  :root{--sidebar-w:208px;--pad-x:32px;}
  .side-menu a{font-size:14px;padding:10px 10px;}
  .brand .b-main{font-size:21px;}
  .qa-grid{gap:20px;}
  .intro-grid{gap:28px;}
  .sec-title{font-size:26px;}
  .cta-band{padding:40px;}
}
@media (max-width:1023px){
  .sidebar{display:none;}
  .mobile-bar{display:flex;}
  .content{margin-left:0;}
  :root{--pad-x:24px;--sec-gap:64px;}
  .page-hero{min-height:200px;margin-top:14px;}
  .hero-inner{padding-top:32px;padding-bottom:32px;}
  .intro-grid{grid-template-columns:1fr;gap:24px;}
  .qa-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .sec-title{font-size:24px;}
  .qa-card h3{font-size:18px;}
}
@media (max-width:767px){
  :root{--pad-x:20px;--sec-gap:56px;}
  body{font-size:15px;line-height:1.75;}
  .hero-inner h1{font-size:28px;}
  .hero-lead{font-size:15px;}
  .page-hero{border-radius:16px;}
  .cta-band{padding:28px;border-radius:16px;}
  .cta-inner h2{font-size:22px;}
  .btn-accent,.btn-ghost{width:100%;}
  .cta-actions{width:100%;}
  .qa-card{padding:22px;}
  .faq-list .accordion-button{font-size:16px;padding:18px 48px 18px 20px;}
  .faq-list .accordion-button::after{right:20px;top:24px;}
  .faq-list .accordion-body{padding:0 20px 20px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding-bottom:28px;}
  .footer-bottom{flex-direction:column;}
  .crumbs{padding-top:16px;}
}
@media (max-width:519px){
  .hero-inner h1{font-size:26px;line-height:1.3;}
  .sec-title{font-size:22px;}
  .qa-num{min-width:38px;height:30px;font-size:13px;}
}

/* roulang page: category5 */
:root{
  --brand:#0F4B4A;
  --brand-deep:#0A3735;
  --brand-tint:#E4EEEA;
  --accent:#D9762E;
  --accent-deep:#C4651F;
  --accent-tint:#FBEADF;
  --bg:#F7F3EA;
  --surface:#FFFFFF;
  --ink:#12211F;
  --ink-soft:#4E605D;
  --line:#DFD9C9;
  --r-card:16px;
  --r-img:20px;
  --r-input:10px;
  --r-nav:10px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(10,55,53,.05),0 8px 24px -12px rgba(10,55,53,.18);
  --shadow-2:0 18px 40px -16px rgba(10,55,53,.28);
  --side-w:248px;
}

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

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

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Inter",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4,h5{
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
  margin:0;
  line-height:1.35;
}

p{margin:0;max-width:760px;}

img{max-width:100%;display:block;}

a{
  color:var(--brand);
  text-decoration:none;
  transition:color .2s ease;
}
a:hover{color:var(--accent);}

ul,ol{margin:0;padding:0;}

button,
input,
select,
textarea{
  font-family:inherit;
  font-size:inherit;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:4px;
}

/* ---------- 容器 ---------- */
.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 48px;
}

.section{
  padding:88px 0;
}

/* ---------- 侧栏 ---------- */
.sidebar{
  position:fixed;
  top:0;
  left:0;
  bottom:0;
  width:var(--side-w);
  background:var(--brand-deep);
  display:flex;
  flex-direction:column;
  padding:30px 20px 24px;
  z-index:1020;
  overflow-y:auto;
}

.logo{
  display:inline-flex;
  flex-direction:column;
  line-height:1.1;
  text-decoration:none;
}
.logo-main{
  color:#fff;
  font-size:22px;
  font-weight:700;
  letter-spacing:.03em;
}
.logo-sub{
  color:rgba(255,255,255,.72);
  font-size:12px;
  margin-top:2px;
  letter-spacing:.1em;
  font-weight:500;
}
.logo:hover .logo-sub{color:rgba(255,255,255,.92);}

.side-menu{
  display:flex;
  flex-direction:column;
  gap:4px;
  margin-top:34px;
}
.side-menu a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  padding:11px 12px;
  border-radius:var(--r-nav);
  border-left:3px solid transparent;
  color:rgba(255,255,255,.78);
  font-size:15px;
  font-weight:500;
  line-height:1.2;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.side-menu a .arrow{
  opacity:0;
  transform:translateX(-4px);
  transition:opacity .2s ease,transform .2s ease;
  font-size:14px;
}
.side-menu a:hover{
  background:rgba(228,238,234,.12);
  color:#fff;
}
.side-menu a:hover .arrow{
  opacity:1;
  transform:translateX(0);
}
.side-menu a.active{
  background:var(--brand-tint);
  color:var(--brand-deep);
  border-left-color:var(--accent);
  font-weight:700;
}
.side-menu a.active .arrow{
  opacity:1;
  transform:translateX(0);
  color:var(--accent);
}

.side-foot{
  margin-top:auto;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
}
.side-contact{
  color:rgba(255,255,255,.66);
  font-size:12.5px;
  line-height:1.85;
  margin-bottom:14px;
  max-width:none;
}
.side-foot .btn-main{
  width:100%;
  height:42px;
  font-size:14px;
}

/* ---------- 主区域 ---------- */
.main-shell{
  margin-left:var(--side-w);
  min-height:100vh;
}

/* ---------- 移动顶栏 ---------- */
.mobile-top{
  display:none;
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--brand-deep);
  padding:12px 20px;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.mobile-top .logo-main{font-size:19px;}
.mobile-top .logo-sub{font-size:11px;}
.menu-toggle{
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.22);
  background:transparent;
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  cursor:pointer;
}
.menu-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:#fff;
  border-radius:2px;
}

.drawer{
  background:var(--brand-deep);
  color:#fff;
  width:300px;
}
.drawer .offcanvas-header{
  padding:20px 20px 8px;
  align-items:flex-start;
}
.drawer .offcanvas-body{
  padding:8px 16px 28px;
}
.drawer .side-menu{margin-top:12px;}
.drawer .side-menu a{
  min-height:48px;
  padding:13px 12px;
  font-size:15px;
}
.drawer .drawer-cta{
  width:100%;
  margin-top:24px;
}

/* ---------- 页头条带 ---------- */
.page-hero{
  position:relative;
  background:var(--brand-deep);
  color:#fff;
  overflow:hidden;
  padding:38px 0 52px;
}
.page-hero-img{
  position:absolute;
  top:0;
  right:0;
  width:52%;
  height:100%;
  background-repeat:no-repeat;
  background-position:center;
  background-size:cover;
  opacity:.35;
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 48%);
  mask-image:linear-gradient(90deg,transparent 0%,#000 48%);
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  left:-70px;
  bottom:-140px;
  width:400px;
  height:400px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.13);
  box-shadow:0 0 0 44px rgba(255,255,255,.04),0 0 0 88px rgba(255,255,255,.03);
  pointer-events:none;
}
.page-hero .wrap{
  position:relative;
  z-index:2;
}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.6);
  margin-bottom:20px;
  max-width:none;
}
.crumbs a{color:rgba(255,255,255,.82);}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{color:rgba(255,255,255,.4);}

.page-hero h1{
  color:#fff;
  font-size:clamp(28px,3.1vw,44px);
  line-height:1.26;
  max-width:820px;
}
.page-hero .hero-lead{
  margin-top:16px;
  font-size:15px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
  max-width:660px;
}

/* ---------- 导语 ---------- */
.intro .intro-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:48px;
  align-items:start;
}
.intro p{
  font-size:16.5px;
  line-height:1.95;
  color:var(--ink);
  margin-bottom:18px;
}
.intro p:last-child{margin-bottom:0;}
.intro-side{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--shadow-1);
}
.intro-side h2{
  font-size:17px;
  margin-bottom:14px;
}
.intro-side ul{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.intro-side li{
  font-size:14px;
  line-height:1.7;
  color:var(--ink-soft);
  padding-left:18px;
  position:relative;
}
.intro-side li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--accent);
}

/* ---------- 板块标题 ---------- */
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
  flex-wrap:wrap;
}
.sec-title{
  font-size:30px;
  line-height:1.35;
  position:relative;
  padding-left:16px;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;
  top:6px;
  bottom:6px;
  width:3px;
  border-radius:2px;
  background:var(--accent);
}
.sec-sub{
  font-size:14.5px;
  color:var(--ink-soft);
  max-width:520px;
  line-height:1.8;
}

/* ---------- 卡片网格 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  display:flex;
  flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-2);
}
.card-img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  display:block;
}
.card-body{
  padding:20px 20px 18px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.card-body h3{
  font-size:18px;
  line-height:1.45;
}
.card-body p{
  font-size:14.5px;
  line-height:1.75;
  color:var(--ink-soft);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-link{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:500;
  color:var(--brand);
}
.card-link:hover{color:var(--accent);}
.card-link .arw{transition:transform .2s ease;}
.card-link:hover .arw{transform:translateX(3px);}

/* ---------- 锚点条 ---------- */
.anchor-wrap{padding:0 0 8px;}
.anchor-bar{
  display:flex;
  gap:12px;
  overflow-x:auto;
  padding:4px 4px 10px;
  -webkit-overflow-scrolling:touch;
}
.anchor-bar::-webkit-scrollbar{height:6px;}
.anchor-bar::-webkit-scrollbar-thumb{background:var(--line);border-radius:3px;}
.anchor-bar a{
  flex:0 0 auto;
  padding:9px 20px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--brand);
  font-size:14px;
  font-weight:500;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.anchor-bar a:hover{
  background:var(--brand);
  color:#fff;
  border-color:var(--brand);
}

/* ---------- 指标条带 ---------- */
.stat-band{
  background:var(--brand-deep);
  color:#fff;
  padding:64px 0;
}
.stat-band .sec-title{color:#fff;}
.stat-band .sec-sub{color:rgba(255,255,255,.66);}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
}
.stat-item{
  padding:0 26px;
  border-left:1px solid rgba(255,255,255,.16);
}
.stat-item:first-child{
  border-left:none;
  padding-left:0;
}
.stat-num{
  font-size:40px;
  font-weight:700;
  line-height:1.1;
  color:#fff;
  letter-spacing:-.02em;
}
.stat-num span{
  font-size:14px;
  font-weight:500;
  margin-left:6px;
  color:rgba(255,255,255,.7);
  letter-spacing:0;
}
.stat-desc{
  margin-top:10px;
  font-size:13px;
  line-height:1.65;
  color:rgba(255,255,255,.66);
}

/* ---------- 通道对比 + 流程 ---------- */
.channel-grid{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:32px;
  align-items:start;
}
.compare-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  overflow-x:auto;
}
.compare-table{
  width:100%;
  min-width:600px;
  border-collapse:collapse;
}
.compare-table caption{
  caption-side:top;
  text-align:left;
  padding:22px 24px 6px;
  font-size:13px;
  color:var(--ink-soft);
  letter-spacing:.02em;
}
.compare-table th{
  text-align:left;
  font-size:13.5px;
  font-weight:700;
  color:var(--brand);
  background:var(--brand-tint);
  padding:14px 24px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.compare-table td{
  padding:16px 24px;
  font-size:14.5px;
  line-height:1.7;
  color:var(--ink);
  border-bottom:1px solid var(--line);
  vertical-align:top;
}
.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-table td:first-child{
  font-weight:500;
  color:var(--brand);
  white-space:nowrap;
}
.compare-table tbody tr:hover td{background:#FCFAF4;}

.process{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px 26px;
  box-shadow:var(--shadow-1);
}
.process h3{
  font-size:18px;
  margin-bottom:22px;
}
.timeline{
  list-style:none;
  position:relative;
  padding-left:26px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:7px;
  top:8px;
  bottom:8px;
  width:1px;
  background:var(--line);
}
.timeline li{
  position:relative;
  padding-bottom:22px;
}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:"";
  position:absolute;
  left:-24px;
  top:8px;
  width:11px;
  height:11px;
  border-radius:50%;
  background:var(--surface);
  border:2px solid var(--accent);
}
.timeline h4{
  font-size:15.5px;
  margin-bottom:6px;
}
.timeline p{
  font-size:14px;
  line-height:1.75;
  color:var(--ink-soft);
}

/* ---------- FAQ ---------- */
.faq{
  max-width:920px;
  margin:0 auto;
}
.faq .accordion{
  --bs-accordion-bg:transparent;
  --bs-accordion-border-width:0;
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-btn-padding-x:22px;
  --bs-accordion-body-padding-x:22px;
}
.faq .accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  margin-bottom:12px;
  box-shadow:var(--shadow-1);
}
.faq .accordion-button{
  background:transparent;
  color:var(--ink);
  font-size:16px;
  font-weight:500;
  line-height:1.6;
  padding:20px 22px;
  box-shadow:none;
  border-left:3px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.faq .accordion-button:not(.collapsed){
  color:var(--brand);
  font-weight:700;
  border-left-color:var(--accent);
  background:transparent;
  box-shadow:none;
}
.faq .accordion-button::after{
  background-image:none;
  content:"";
  width:9px;
  height:9px;
  border-right:2px solid var(--ink-soft);
  border-bottom:2px solid var(--ink-soft);
  transform:rotate(45deg);
  transition:transform .25s ease,border-color .25s ease;
  margin-left:16px;
  flex:0 0 auto;
}
.faq .accordion-button:not(.collapsed)::after{
  transform:rotate(-135deg);
  border-color:var(--brand);
}
.faq .accordion-body{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-soft);
  max-width:760px;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--brand);
  color:#fff;
  padding:76px 0;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-80px;
  top:-120px;
  width:380px;
  height:380px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 0 0 46px rgba(255,255,255,.05),0 0 0 92px rgba(255,255,255,.04);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1fr) 420px;
  gap:52px;
  align-items:start;
}
.cta-inner h2{
  color:#fff;
  font-size:30px;
  line-height:1.35;
  margin-bottom:16px;
}
.cta-inner .cta-desc{
  color:rgba(255,255,255,.82);
  font-size:15px;
  line-height:1.85;
  margin-bottom:26px;
  max-width:520px;
}
.cta-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}

.form-card{
  background:var(--surface);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--shadow-2);
  color:var(--ink);
}
.form-card h3{
  font-size:17px;
  margin-bottom:6px;
}
.form-card .form-note{
  font-size:13px;
  color:var(--ink-soft);
  line-height:1.7;
  margin-bottom:20px;
  max-width:none;
}
.field-group{
  margin-bottom:14px;
}
.field-group label{
  display:block;
  font-size:13.5px;
  font-weight:500;
  margin-bottom:6px;
  color:var(--ink);
}
.field{
  width:100%;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  padding:11px 14px;
  font-size:15px;
  line-height:1.5;
  background:#fff;
  color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
  appearance:none;
}
.field::placeholder{color:var(--ink-soft);opacity:.75;}
.field:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px var(--accent-tint);
}
textarea.field{min-height:96px;resize:vertical;}
.form-card .btn-main{
  width:100%;
  margin-top:6px;
}

/* ---------- 按钮 ---------- */
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  background:var(--accent);
  color:#fff;
  border:none;
  font-size:15px;
  font-weight:500;
  line-height:1;
  cursor:pointer;
  transition:background .2s ease,transform .2s ease,color .2s ease;
}
.btn-main:hover{
  background:var(--accent-deep);
  color:#fff;
  transform:translateY(-1px);
}
.btn-main:active{transform:translateY(0);}

.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  background:transparent;
  border:1.5px solid var(--brand);
  color:var(--brand);
  font-size:15px;
  font-weight:500;
  line-height:1;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-ghost:hover{
  background:var(--brand);
  color:#fff;
  transform:translateY(-1px);
}

.btn-light{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  background:#fff;
  color:var(--brand);
  border:1.5px solid rgba(255,255,255,.6);
  font-size:15px;
  font-weight:500;
  line-height:1;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.btn-light:hover{
  background:var(--accent);
  color:#fff;
  border-color:var(--accent);
  transform:translateY(-1px);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-deep);
  color:rgba(255,255,255,.72);
  padding:64px 0 24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
}
.f-brand{
  display:inline-flex;
  flex-direction:column;
  line-height:1.15;
  margin-bottom:16px;
}
.f-main{
  color:#fff;
  font-size:20px;
  font-weight:700;
  letter-spacing:.03em;
}
.f-sub{
  color:rgba(255,255,255,.7);
  font-size:12px;
  margin-top:2px;
  letter-spacing:.1em;
  font-weight:500;
}
.f-desc{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.66);
  max-width:330px;
}
.footer-grid h4{
  color:#fff;
  font-size:14px;
  font-weight:500;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-grid a{
  display:block;
  color:rgba(255,255,255,.72);
  font-size:14px;
  line-height:2.3;
  transition:color .2s ease;
}
.footer-grid a:hover{color:var(--accent);}
.footer-list{
  list-style:none;
  font-size:14px;
  line-height:2.1;
  color:rgba(255,255,255,.72);
}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--side-w:208px;}
  .wrap{padding:0 32px;}
  .side-menu a{font-size:14px;padding:10px 10px;}
  .section{padding:72px 0;}
  .sec-title{font-size:26px;}
  .stat-num{font-size:34px;}
  .intro .intro-grid{grid-template-columns:minmax(0,1fr) 300px;gap:36px;}
  .cta-inner{grid-template-columns:minmax(0,1fr) 380px;gap:40px;}
}

@media (max-width:1023px){
  .sidebar{display:none;}
  .main-shell{margin-left:0;}
  .mobile-top{display:flex;}
  .wrap{padding:0 32px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:32px;}
  .stat-item{padding:0 20px;}
  .stat-item:nth-child(odd){border-left:none;padding-left:0;}
  .channel-grid{grid-template-columns:minmax(0,1fr);}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:36px;}
  .cta-inner .cta-desc{max-width:none;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .intro .intro-grid{grid-template-columns:minmax(0,1fr);}
  .page-hero-img{width:64%;opacity:.28;}
  .page-hero{padding:32px 0 44px;}
}

@media (max-width:767px){
  .wrap{padding:0 20px;}
  .section{padding:56px 0;}
  .sec-title{font-size:23px;}
  .sec-head{margin-bottom:26px;}
  .card-grid{grid-template-columns:minmax(0,1fr);gap:16px;}
  .stat-grid{grid-template-columns:minmax(0,1fr);row-gap:26px;}
  .stat-item{
    border-left:none;
    padding-left:0;
    padding-bottom:24px;
    border-bottom:1px solid rgba(255,255,255,.14);
  }
  .stat-item:last-child{padding-bottom:0;border-bottom:none;}
  .stat-num{font-size:32px;}
  .page-hero h1{font-size:27px;line-height:1.3;}
  .page-hero .hero-lead{font-size:14.5px;}
  .intro p{font-size:15.5px;}
  .cta-inner h2{font-size:24px;}
  .form-card{padding:22px 18px;}
  .btn-main,.btn-ghost,.btn-light{width:100%;}
  .cta-actions{flex-direction:column;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .faq .accordion-button{font-size:15px;padding:17px 18px;}
  .faq .accordion-body{padding:0 18px 18px;font-size:14.5px;}
  .compare-table th,.compare-table td{padding:13px 16px;}
  .compare-table caption{padding:18px 16px 4px;}
  .process{padding:24px 20px;}
}

@media (max-width:520px){
  .page-hero h1{font-size:24px;}
  .stat-num{font-size:28px;}
  .card-body h3{font-size:17px;}
}