/* roulang page: index */
:root{
  --c-primary:#14697A;
  --c-primary-dark:#0E5666;
  --c-primary-tint:#E7F2F4;
  --c-accent:#E2903A;
  --c-accent-hover:#C97A28;
  --c-accent-tint:#FBF0E1;
  --c-text:#10222B;
  --c-text-2:#5A6C76;
  --c-text-3:#8A9AA3;
  --c-bg:#FFFFFF;
  --c-bg-alt:#F5F9FA;
  --c-line:#E1EAED;
  --c-success:#2E8B6E;
  --c-danger:#C8553D;
  --c-footer:#0E2A31;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,28,36,.04), 0 12px 32px -12px rgba(15,28,36,.10);
  --sh-2:0 18px 40px -14px rgba(20,105,122,.16);
  --sec-pad:96px;
  --font-mix:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-mix);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-dark);text-decoration:underline;text-underline-offset:3px;}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.22;letter-spacing:-.01em;font-weight:800;}
h2{font-size:clamp(24px,3vw,32px);line-height:1.3;letter-spacing:-.01em;font-weight:800;}
h3{font-size:20px;line-height:1.45;font-weight:700;}
.num{font-variant-numeric:tabular-nums;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;}
.section{padding:var(--sec-pad) 0;}
.section-alt{background:var(--c-bg-alt);}
.sec-head{max-width:720px;margin-bottom:44px;}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-tint);border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:16px;letter-spacing:.02em;
}
.sec-head p{color:var(--c-text-2);font-size:15px;line-height:1.75;margin-top:14px;}

/* ---------- 按钮 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .12s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-x:active{transform:translateY(1px);}
.btn-x:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(20,105,122,.14);}
.btn-primary-x{background:var(--c-primary);color:#fff;}
.btn-primary-x:hover{background:var(--c-primary-dark);color:#fff;text-decoration:none;}
.btn-ghost-x{background:transparent;color:var(--c-primary);border-color:rgba(20,105,122,.3);}
.btn-ghost-x:hover{background:var(--c-primary-tint);color:var(--c-primary-dark);text-decoration:none;}
.btn-amber{background:var(--c-accent);color:#fff;}
.btn-amber:hover{background:var(--c-accent-hover);color:#fff;text-decoration:none;}
.btn-sm-x{height:38px;padding:0 16px;font-size:13.5px;border-radius:9px;}
.text-link{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.text-link i{font-size:12px;transition:transform .18s ease;}
.text-link:hover i{transform:translateX(3px);}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--c-line);box-shadow:0 1px 2px rgba(15,28,36,.04);}
.nav-top-inner{display:flex;align-items:center;gap:22px;min-height:72px;padding-top:6px;padding-bottom:6px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(140deg,#1B8497,#0E5666);
  color:#fff;display:grid;place-items:center;font-size:17px;font-weight:800;
  box-shadow:0 8px 18px -8px rgba(20,105,122,.55);
}
.brand-text strong{display:block;font-size:18.5px;font-weight:800;color:var(--c-text);line-height:1.2;letter-spacing:-.02em;}
.brand-text small{display:block;font-size:11.5px;color:var(--c-text-3);line-height:1.5;letter-spacing:.01em;}
.nav-search{position:relative;flex:1 1 auto;max-width:560px;display:flex;align-items:center;}
.nav-search .s-icon{position:absolute;left:16px;color:var(--c-text-3);font-size:14px;pointer-events:none;}
.nav-search input{
  width:100%;height:46px;border:1px solid var(--c-line);border-radius:12px;
  padding:0 104px 0 44px;background:var(--c-bg-alt);font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.nav-search input::placeholder{color:var(--c-text-3);}
.nav-search input:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 4px rgba(20,105,122,.12);}
.nav-search button{
  position:absolute;right:6px;height:34px;padding:0 18px;border:none;
  border-radius:9px;background:var(--c-primary);color:#fff;font-size:13px;font-weight:600;cursor:pointer;
  transition:background .18s ease;
}
.nav-search button:hover{background:var(--c-primary-dark);}
.nav-actions{display:flex;align-items:center;gap:20px;margin-left:auto;flex-shrink:0;}
.nav-actions .nav-link{font-size:14.5px;font-weight:500;color:var(--c-text-2);}
.nav-actions .nav-link:hover{color:var(--c-primary);text-decoration:none;}
.nav-actions .nav-link.active{color:var(--c-primary);font-weight:700;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-text);place-items:center;font-size:16px;cursor:pointer;
}
.nav-chips-wrap{border-top:1px solid var(--c-line);background:#fff;}
.nav-chips{display:flex;align-items:center;gap:10px;height:44px;overflow-x:auto;scrollbar-width:none;}
.nav-chips::-webkit-scrollbar{display:none;}
.chip-nav{
  display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
  font-size:13.5px;font-weight:500;color:var(--c-text-2);
  padding:5px 14px;border-radius:var(--r-pill);border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.chip-nav:hover{background:var(--c-primary-tint);color:var(--c-primary-dark);text-decoration:none;}
.chip-nav.active{background:var(--c-primary-tint);color:var(--c-primary);font-weight:700;border-color:rgba(20,105,122,.18);}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:64px 0 76px;background:linear-gradient(180deg,#F0F7F8 0%,#FBFDFD 62%,#FFFFFF 100%);}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(20,105,122,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(20,105,122,.045) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:9px;font-size:13px;font-weight:600;
  color:var(--c-primary);background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-pill);padding:6px 15px;box-shadow:0 1px 2px rgba(15,28,36,.04);
  margin-bottom:20px;
}
.hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--c-success);box-shadow:0 0 0 3px rgba(46,139,110,.16);}
.hero h1{margin-bottom:18px;}
.hero h1 .hl{color:var(--c-primary);}
.hero-sub{font-size:19px;line-height:1.7;color:var(--c-text-2);max-width:560px;margin-bottom:28px;}
.hero-search{
  position:relative;display:flex;align-items:center;background:#fff;
  border:1px solid var(--c-line);border-radius:14px;box-shadow:var(--sh-1);
  padding:6px;margin-bottom:16px;max-width:590px;
}
.hero-search .h-icon{position:absolute;left:22px;color:var(--c-text-3);font-size:16px;pointer-events:none;}
.hero-search input{
  flex:1;height:56px;border:none;background:transparent;padding:0 16px 0 48px;
  font-size:15px;border-radius:12px;
}
.hero-search input:focus{outline:none;}
.hero-search input::placeholder{color:var(--c-text-3);}
.hero-search button{
  height:56px;padding:0 30px;border:none;border-radius:12px;background:var(--c-primary);
  color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:background .18s ease;
}
.hero-search button:hover{background:var(--c-primary-dark);}
.hero-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(20,105,122,.12),var(--sh-1);}
.hot-words{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:30px;}
.hot-words .label{font-size:13px;color:var(--c-text-3);display:inline-flex;align-items:center;height:30px;}
.hot-chip{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--c-primary-tint);color:var(--c-primary);font-size:13px;font-weight:500;
  transition:background .18s ease,color .18s ease;
}
.hot-chip:hover{background:var(--c-primary);color:#fff;text-decoration:none;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:12px 26px;border-top:1px dashed var(--c-line);padding-top:22px;}
.hero-trust div{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--c-text-2);}
.hero-trust i{color:var(--c-primary);font-size:13px;}
.hero-trust b{color:var(--c-text);font-weight:700;font-variant-numeric:tabular-nums;}
.hero-visual{position:relative;}
.hero-visual .frame{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:0 26px 60px -26px rgba(14,86,102,.42);
}
.hero-visual .frame img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-visual .frame::after{
  content:"";position:absolute;inset:0;background:rgba(245,249,250,.08);
}
.hero-badge{
  position:absolute;left:-14px;bottom:26px;background:#fff;border-radius:14px;
  padding:14px 18px;box-shadow:var(--sh-1);display:flex;align-items:center;gap:13px;
  border:1px solid var(--c-line);
}
.hero-badge .ico{
  width:40px;height:40px;border-radius:11px;background:var(--c-accent-tint);color:var(--c-accent);
  display:grid;place-items:center;font-size:17px;flex-shrink:0;
}
.hero-badge strong{display:block;font-size:15px;font-weight:700;line-height:1.3;font-variant-numeric:tabular-nums;}
.hero-badge span{display:block;font-size:12.5px;color:var(--c-text-3);}

/* ---------- 功能条块 ---------- */
.feature-layout{display:grid;grid-template-columns:280px 1fr;gap:48px;align-items:start;}
.feature-aside{position:sticky;top:140px;}
.feature-aside h2{margin-bottom:14px;}
.feature-aside p{color:var(--c-text-2);font-size:15px;line-height:1.75;margin-bottom:22px;}
.feature-aside .mini-note{
  border-left:3px solid var(--c-primary);background:var(--c-bg-alt);
  padding:12px 16px;border-radius:0 12px 12px 0;font-size:13.5px;color:var(--c-text-2);line-height:1.7;
}
.feature-grid{display:grid;grid-template-columns:1.08fr 1fr;gap:20px;}
.f-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:24px;transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.f-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:rgba(20,105,122,.22);}
.f-card.wide{grid-column:span 2;display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;}
.f-ico{
  width:44px;height:44px;border-radius:12px;background:var(--c-primary-tint);color:var(--c-primary);
  display:grid;place-items:center;font-size:18px;margin-bottom:16px;
}
.f-card.wide .f-ico{margin-bottom:0;}
.f-card h3{margin-bottom:9px;font-size:18px;}
.f-card p{font-size:14.5px;color:var(--c-text-2);line-height:1.75;margin-bottom:14px;}
.f-card p:last-child{margin-bottom:0;}

/* ---------- 数据条 ---------- */
.stats-band{background:var(--c-bg-alt);padding:70px 0;}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat{padding:0 4px;}
.stat .v{
  font-size:clamp(30px,3.6vw,42px);font-weight:800;color:var(--c-primary);
  line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat .v small{font-size:16px;font-weight:700;margin-left:3px;}
.stat .k{font-size:15px;font-weight:700;color:var(--c-text);margin-top:10px;}
.stat .d{font-size:13px;color:var(--c-text-3);margin-top:4px;line-height:1.6;}
.stat + .stat{border-left:1px solid var(--c-line);padding-left:24px;}

/* ---------- 案例条块 ---------- */
.case-row{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;padding:34px 0;border-bottom:1px solid var(--c-line);}
.case-row:last-child{border-bottom:none;}
.case-row:nth-child(even) .case-media{order:2;}
.case-media{border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);}
.case-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.case-row:hover .case-media img{transform:scale(1.03);}
.case-body h3{margin-bottom:12px;font-size:22px;}
.case-body p{font-size:15px;color:var(--c-text-2);line-height:1.8;margin-bottom:16px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-primary-tint);color:var(--c-primary);font-size:12px;font-weight:600;
}
.tag.amber{background:var(--c-accent-tint);color:var(--c-accent-hover);}

/* ---------- 方案编号列表 ---------- */
.plan-list{display:flex;flex-direction:column;gap:0;}
.plan-item{display:grid;grid-template-columns:110px 1fr;gap:28px;padding:34px 0;border-top:1px solid var(--c-line);}
.plan-item:last-child{border-bottom:1px solid var(--c-line);}
.plan-no{
  font-size:46px;font-weight:800;color:var(--c-primary-tint);line-height:1;
  font-variant-numeric:tabular-nums;letter-spacing:-.03em;
}
.plan-body h3{margin-bottom:10px;}
.plan-body p{font-size:15px;color:var(--c-text-2);line-height:1.8;margin-bottom:12px;max-width:760px;}
.plan-body .points{display:flex;flex-wrap:wrap;gap:10px 24px;}
.plan-body .points span{font-size:13.5px;color:var(--c-text-2);display:inline-flex;align-items:center;gap:8px;}
.plan-body .points i{color:var(--c-success);font-size:12px;}

/* ---------- CMS 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.news-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:rgba(20,105,122,.22);}
.news-card-link{display:block;padding:24px;color:inherit;height:100%;}
.news-card-link:hover{text-decoration:none;color:inherit;}
.news-card-title{
  font-size:17px;font-weight:700;line-height:1.55;margin-bottom:10px;color:var(--c-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-card-title{color:var(--c-primary);}
.news-card-sum{
  font-size:14px;color:var(--c-text-2);line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--c-text-3);font-variant-numeric:tabular-nums;}
.badge-soft{display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:var(--r-pill);background:var(--c-primary-tint);color:var(--c-primary);font-size:12px;font-weight:600;}
.news-more{display:flex;justify-content:center;margin-top:36px;}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 20px;color:var(--c-text-3);
  border:1px dashed var(--c-line);border-radius:var(--r-md);background:#fff;
}
.empty-state i{font-size:40px;color:rgba(20,105,122,.3);display:block;margin-bottom:14px;}
.empty-state p{font-size:14px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;}
.accordion-x .accordion-item{border:none;border-bottom:1px solid var(--c-line);background:transparent;}
.accordion-x .accordion-button{
  background:transparent;box-shadow:none;font-size:16.5px;font-weight:700;color:var(--c-text);
  padding:22px 44px 22px 18px;border-radius:12px;transition:background .2s ease,color .2s ease;
}
.accordion-x .accordion-button:not(.collapsed){background:var(--c-primary-tint);color:var(--c-primary-dark);}
.accordion-x .accordion-button:focus{box-shadow:0 0 0 4px rgba(20,105,122,.14);border-color:transparent;}
.accordion-x .accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  width:20px;height:20px;font-size:13px;color:var(--c-primary);
  display:grid;place-items:center;transition:transform .2s ease;position:absolute;right:18px;
}
.accordion-x .accordion-button:not(.collapsed)::after{content:"\f068";transform:rotate(180deg);}
.accordion-x .accordion-body{padding:4px 18px 26px;font-size:14.8px;color:var(--c-text-2);line-height:1.85;}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start;}
.form-field{margin-bottom:20px;}
.form-field label{display:block;font-size:14px;font-weight:600;color:var(--c-text-2);margin-bottom:8px;}
.form-field input,.form-field textarea,.form-field select{
  width:100%;height:46px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  padding:0 14px;background:#fff;font-size:14.5px;transition:border-color .18s ease,box-shadow .18s ease;
}
.form-field textarea{height:auto;min-height:132px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-field input:focus,.form-field textarea:focus,.form-field select:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(20,105,122,.12);
}
.form-hint{font-size:13px;color:var(--c-text-3);margin-top:12px;}
.form-err{font-size:13px;color:var(--c-danger);margin-top:6px;display:none;}
.info-panel{background:var(--c-bg-alt);border:1px solid var(--c-line);border-radius:var(--r-md);padding:28px;}
.info-item{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--c-line);}
.info-item:last-of-type{border-bottom:none;}
.info-item .ii{
  width:38px;height:38px;border-radius:10px;background:#fff;color:var(--c-primary);
  display:grid;place-items:center;font-size:15px;flex-shrink:0;border:1px solid var(--c-line);
}
.info-item strong{display:block;font-size:14px;font-weight:700;color:var(--c-text);}
.info-item span{display:block;font-size:13.5px;color:var(--c-text-2);line-height:1.7;font-variant-numeric:tabular-nums;}
.qr-box{
  margin-top:18px;border-top:1px dashed var(--c-line);padding-top:20px;
  display:flex;align-items:center;gap:16px;
}
.qr-box .qr{
  width:92px;height:92px;border-radius:12px;background:#fff;border:1px solid var(--c-line);
  display:grid;place-items:center;color:var(--c-primary);font-size:26px;flex-shrink:0;
}
.qr-box p{font-size:13px;color:var(--c-text-3);line-height:1.7;}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:linear-gradient(120deg,#0E5666 0%,#14697A 62%,#1B8497 100%);
  border-radius:var(--r-lg);padding:52px;color:#fff;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.06);
}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15.5px;max-width:640px;margin-bottom:26px;line-height:1.8;}
.cta-band .btns{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1;}
.cta-band .btn-amber{background:var(--c-accent);}
.cta-band .btn-amber:hover{background:var(--c-accent-hover);}
.btn-outline-white{border:1px solid rgba(255,255,255,.45);color:#fff;background:transparent;}
.btn-outline-white:hover{background:rgba(255,255,255,.12);color:#fff;text-decoration:none;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-footer);color:rgba(255,255,255,.72);padding:68px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand strong{color:#fff;font-size:17px;font-weight:800;line-height:1.3;}
.site-footer p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.6);}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;}
.site-footer ul li{margin-bottom:11px;}
.site-footer ul a{color:rgba(255,255,255,.68);font-size:13.5px;}
.site-footer ul a:hover{color:#fff;text-decoration:none;}
.footer-contact li{font-size:13.5px;color:rgba(255,255,255,.68);font-variant-numeric:tabular-nums;display:flex;gap:10px;align-items:flex-start;margin-bottom:12px;}
.footer-contact i{color:var(--c-accent);margin-top:5px;font-size:12px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s ease,transform .3s ease;}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container{max-width:1000px;}
  .hero-grid{gap:40px;}
}
@media (max-width:991.98px){
  :root{--sec-pad:72px;}
  .nav-top-inner{flex-wrap:wrap;padding-top:12px;padding-bottom:12px;gap:12px;}
  .brand{order:1;}
  .nav-toggle{order:2;margin-left:auto;display:grid;}
  .nav-search{order:3;flex-basis:100%;max-width:none;}
  .nav-actions{
    order:4;flex-basis:100%;display:none;flex-direction:column;align-items:stretch;
    gap:4px;margin-left:0;padding:8px 0 4px;border-top:1px solid var(--c-line);
  }
  .nav-actions.open{display:flex;}
  .nav-actions .nav-link{padding:10px 4px;font-size:15px;}
  .nav-actions .btn-x{width:100%;margin-top:8px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual .frame img{aspect-ratio:16/10;}
  .hero-badge{left:auto;right:14px;bottom:14px;}
  .feature-layout{grid-template-columns:1fr;gap:32px;}
  .feature-aside{position:static;}
  .stats-row{grid-template-columns:1fr 1fr;gap:32px 24px;}
  .stat + .stat{border-left:none;padding-left:0;}
  .stat:nth-child(even){border-left:1px solid var(--c-line);padding-left:24px;}
  .case-row{grid-template-columns:1fr;gap:24px;}
  .case-row:nth-child(even) .case-media{order:0;}
  .news-grid{grid-template-columns:1fr 1fr;}
  .contact-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  :root{--sec-pad:56px;}
  .container{padding-left:16px;padding-right:16px;}
  .hero{padding:40px 0 56px;}
  .hero-sub{font-size:16.5px;}
  .hero-search{flex-direction:column;align-items:stretch;gap:8px;padding:8px;}
  .hero-search .h-icon{display:none;}
  .hero-search input{height:50px;padding-left:16px;background:var(--c-bg-alt);border-radius:10px;}
  .hero-search button{height:48px;width:100%;}
  .hero-cta .btn-x{flex:1 1 100%;}
  .feature-grid{grid-template-columns:1fr;}
  .f-card.wide{grid-column:span 1;grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .plan-item{grid-template-columns:64px 1fr;gap:16px;padding:26px 0;}
  .plan-no{font-size:34px;}
  .stats-row{grid-template-columns:1fr 1fr;gap:26px 16px;}
  .stat:nth-child(even){padding-left:16px;}
  .stat .v{font-size:30px;}
  .cta-band{padding:32px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .accordion-x .accordion-button{font-size:15.5px;padding:18px 40px 18px 14px;}
  .footer-bottom{justify-content:flex-start;}
}
@media (max-width:575.98px){
  .brand-text small{display:none;}
  .brand-text strong{font-size:16.5px;}
  .stats-row{grid-template-columns:1fr;gap:22px;}
  .stat:nth-child(even){border-left:none;padding-left:0;}
  .qr-box{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --c-primary:#14697A;
  --c-primary-dark:#0E5666;
  --c-primary-tint:#E7F2F4;
  --c-accent:#E2903A;
  --c-accent-dark:#C97A28;
  --c-accent-tint:#FCF1E4;
  --c-text:#10222B;
  --c-text-2:#5A6C76;
  --c-text-3:#8A9AA3;
  --c-bg:#FFFFFF;
  --c-bg-alt:#F5F9FA;
  --c-line:#E1EAED;
  --c-success:#2E8B6E;
  --c-footer:#0E2A31;
  --c-danger:#C0453C;
  --r-card:16px;
  --r-img:16px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,28,36,.04), 0 12px 32px -12px rgba(15,28,36,.10);
  --sh-2:0 18px 40px -14px rgba(20,105,122,.16);
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c-primary-dark);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{color:var(--c-text);margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%}
.tnum{font-variant-numeric:tabular-nums}
:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(20,105,122,.14);border-radius:6px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);backdrop-filter:saturate(150%) blur(8px);border-bottom:1px solid var(--c-line)}
.nav-top-inner{display:flex;align-items:center;gap:22px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none!important;flex:0 0 auto}
.brand-mark{
  width:42px;height:42px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--c-primary),#1E8AA0);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:700;letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:19px;color:var(--c-text);letter-spacing:-.02em}
.brand-text small{font-size:12px;color:var(--c-text-3);letter-spacing:.02em}
.nav-search{
  flex:1 1 auto;max-width:560px;display:flex;align-items:center;
  height:46px;background:var(--c-bg);border:1px solid var(--c-line);
  border-radius:12px;padding:0 6px 0 14px;position:relative;transition:border-color var(--ease),box-shadow var(--ease);
}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(20,105,122,.10)}
.nav-search .s-icon{color:var(--c-text-3);font-size:15px;margin-right:10px}
.nav-search input{
  flex:1 1 auto;border:0;outline:none;background:transparent;height:100%;
  color:var(--c-text);font-size:15px;min-width:0;
}
.nav-search input::placeholder{color:var(--c-text-3)}
.nav-search button{
  border:0;background:var(--c-primary);color:#fff;height:34px;padding:0 18px;
  border-radius:var(--r-pill);font-size:14px;cursor:pointer;transition:background var(--ease),transform var(--ease);
}
.nav-search button:hover{background:var(--c-primary-dark)}
.nav-search button:active{transform:translateY(1px)}
.nav-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.nav-link{font-size:15px;color:var(--c-text-2);white-space:nowrap}
.nav-link:hover{color:var(--c-primary);text-decoration:none}
.nav-link.active{color:var(--c-primary);font-weight:600}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-text);font-size:17px;cursor:pointer;
}
.nav-chips-wrap{border-top:1px solid var(--c-line);background:var(--c-bg-alt)}
.nav-chips{display:flex;align-items:center;gap:10px;height:46px;overflow-x:auto;scrollbar-width:none}
.nav-chips::-webkit-scrollbar{display:none}
.chip-nav{
  display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
  font-size:14px;color:var(--c-text-2);padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid transparent;transition:all var(--ease);
}
.chip-nav i{font-size:13px;color:var(--c-primary)}
.chip-nav:hover{background:#fff;border-color:var(--c-line);color:var(--c-primary);text-decoration:none}
.chip-nav.active{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.chip-nav.active i{color:#fff}

/* ---------- buttons ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;padding:0 20px;height:46px;
  border:1px solid transparent;cursor:pointer;transition:all var(--ease);white-space:nowrap;
}
.btn-x:hover{text-decoration:none}
.btn-x:active{transform:translateY(1px)}
.btn-sm-x{height:38px;font-size:14px;padding:0 16px;border-radius:9px}
.btn-primary-x{background:var(--c-primary);color:#fff}
.btn-primary-x:hover{background:var(--c-primary-dark);color:#fff}
.btn-amber{background:var(--c-accent);color:#fff}
.btn-amber:hover{background:var(--c-accent-dark);color:#fff}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:rgba(20,105,122,.32)}
.btn-ghost:hover{background:var(--c-primary-tint);color:var(--c-primary-dark);border-color:var(--c-primary)}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--c-bg-alt);border-bottom:1px solid var(--c-line)}
.crumb-inner{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:14px;color:var(--c-text-3);padding:14px 0}
.crumb-inner a{color:var(--c-text-3)}
.crumb-inner a:hover{color:var(--c-primary)}
.crumb-sep{color:#C3D1D6}
.crumb-current{color:var(--c-text)}

/* ---------- article head ---------- */
.article-head{padding:52px 0 30px;border-bottom:1px solid var(--c-line)}
.article-tagline{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.badge-x{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;line-height:1;
  padding:7px 12px;border-radius:var(--r-pill);background:var(--c-primary-tint);color:var(--c-primary-dark);
}
.badge-x.amber{background:var(--c-accent-tint);color:var(--c-accent-dark)}
.article-head h1{
  font-size:clamp(26px,3.6vw,40px);line-height:1.25;letter-spacing:-.01em;margin-bottom:18px;
}
.article-meta{display:flex;align-items:center;gap:20px;flex-wrap:wrap;font-size:13px;color:var(--c-text-3)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--c-primary);opacity:.75}

/* ---------- layout ---------- */
.article-wrap{padding:56px 0 88px;background:var(--c-bg)}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.article-main{min-width:0;max-width:820px}
.article-body{font-size:16.5px;line-height:1.85;color:var(--c-text-2)}
.article-body>*+*{margin-top:1.1em}
.article-body h2{
  font-size:clamp(21px,2.2vw,26px);margin-top:2em;margin-bottom:.8em;
  padding-left:14px;border-left:4px solid var(--c-primary);line-height:1.4;
}
.article-body h3{font-size:20px;margin-top:1.6em;margin-bottom:.7em}
.article-body p{margin-bottom:1.1em}
.article-body a{font-weight:500}
.article-body strong{color:var(--c-text)}
.article-body ul,.article-body ol{padding-left:1.4em;margin-bottom:1.1em}
.article-body ul li{list-style:disc;margin-bottom:.5em}
.article-body ol li{list-style:decimal;margin-bottom:.5em}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;background:var(--c-primary-tint);
  border-left:3px solid var(--c-primary);border-radius:0 12px 12px 0;color:var(--c-text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:1.6em auto;height:auto}
.article-body pre{background:#F1F6F7;border:1px solid var(--c-line);border-radius:8px;padding:16px;overflow:auto;font-size:14px;line-height:1.6}
.article-body code{background:#F1F6F7;border-radius:6px;padding:2px 6px;font-size:.92em;color:var(--c-primary-dark)}
.article-body pre code{background:none;padding:0}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.4em 0}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left}
.article-body th{background:var(--c-bg-alt);color:var(--c-text)}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2em 0}

/* empty state */
.empty-state{
  text-align:center;padding:64px 24px;border:1px dashed var(--c-line);
  border-radius:var(--r-card);background:var(--c-bg-alt);
}
.empty-state i{font-size:48px;color:rgba(20,105,122,.3)}
.empty-state p{margin:18px 0 22px;font-size:15px;color:var(--c-text-2)}

/* tags */
.tag-block{margin-top:44px;padding-top:26px;border-top:1px solid var(--c-line);display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.tag-block .label{font-size:13px;color:var(--c-text-3)}
.tag-x{
  font-size:12px;padding:6px 12px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);color:var(--c-text-2);transition:all var(--ease);
}
.tag-x:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-tint);text-decoration:none}

/* prev next */
.pn-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:28px}
.pn-item{
  border:1px solid var(--c-line);border-radius:var(--r-card);background:#fff;
  padding:18px 20px;transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.pn-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:transparent;text-decoration:none}
.pn-item span{display:block;font-size:12px;color:var(--c-text-3);margin-bottom:6px}
.pn-item strong{display:block;font-size:15px;color:var(--c-text);line-height:1.6;font-weight:600}
.pn-item.next{text-align:right}

/* sidebar */
.side-card{
  border:1px solid var(--c-line);border-radius:var(--r-card);background:#fff;
  padding:22px;box-shadow:var(--sh-1);margin-bottom:20px;
}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--c-primary);font-size:15px}
.side-list li+li{border-top:1px solid var(--c-line)}
.side-list a{display:flex;align-items:center;gap:10px;padding:11px 0;font-size:14.5px;color:var(--c-text-2)}
.side-list a:hover{color:var(--c-primary);text-decoration:none}
.side-list a i{font-size:12px;color:var(--c-text-3)}
.side-note{font-size:13.5px;color:var(--c-text-3);line-height:1.75;margin-bottom:16px}
.side-card .btn-x{width:100%}

/* related */
.related{padding:72px 0 88px;background:var(--c-bg-alt);border-top:1px solid var(--c-line)}
.sec-head{margin-bottom:34px}
.sec-head .eyebrow{font-size:13px;color:var(--c-primary);letter-spacing:.14em;text-transform:uppercase;margin-bottom:10px;display:block}
.sec-head h2{font-size:clamp(23px,2.6vw,30px)}
.sec-head p{font-size:15px;color:var(--c-text-3);margin-top:10px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card-x{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;
  transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.card-x:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:transparent;text-decoration:none}
.card-thumb{position:relative;padding-top:62.5%;background:linear-gradient(140deg,var(--c-primary-tint),#F7FBFC)}
.card-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.card-body-x{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body-x h3{font-size:17px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body-x p{font-size:14.5px;color:var(--c-text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--c-text-3);margin-top:auto}
.card-meta .badge-x{font-size:12px;padding:6px 11px}

/* back cta */
.back-cta{padding:0 0 96px;background:var(--c-bg-alt)}
.cta-box{
  background:linear-gradient(135deg,#0E5666 0%,#14697A 55%,#1B7F92 100%);
  border-radius:20px;padding:52px 48px;color:#fff;display:flex;align-items:center;
  justify-content:space-between;gap:32px;flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta-box::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:rgba(255,255,255,.06);
}
.cta-box h2{color:#fff;font-size:clamp(21px,2.4vw,27px);margin-bottom:10px}
.cta-box p{color:rgba(255,255,255,.82);font-size:15px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}
.cta-box .btn-light-x{background:#fff;color:var(--c-primary-dark)}
.cta-box .btn-light-x:hover{background:var(--c-primary-tint);color:var(--c-primary-dark);text-decoration:none}
.cta-box .btn-outline-x{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.cta-box .btn-outline-x:hover{background:rgba(255,255,255,.12);color:#fff;text-decoration:none}

/* ---------- footer ---------- */
.site-footer{background:var(--c-footer);color:rgba(255,255,255,.72);padding:64px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-mark{width:38px;height:38px;font-size:18px;border-radius:11px}
.footer-brand strong{color:#fff;font-size:17px;letter-spacing:-.01em}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px}
.site-footer ul li{margin-bottom:11px}
.site-footer ul a{color:rgba(255,255,255,.7);font-size:14px}
.site-footer ul a:hover{color:#fff;text-decoration:none}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.7)}
.footer-contact i{color:var(--c-accent);margin-top:5px;font-size:14px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0 28px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);font-variant-numeric:tabular-nums;
}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s ease,transform .3s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .article-grid{grid-template-columns:minmax(0,1fr);gap:0}
  .article-main{margin:0 auto}
  .article-aside{display:none}
}
@media (max-width:992px){
  .brand-text small{display:none}
  .nav-search{order:3;max-width:100%;flex-basis:100%}
  .nav-top-inner{flex-wrap:wrap;padding-top:12px;padding-bottom:12px;gap:14px;min-height:auto}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto}
  .nav-actions{
    display:none;order:4;flex-basis:100%;flex-direction:column;align-items:stretch;
    gap:4px;padding-top:10px;border-top:1px solid var(--c-line);
  }
  .nav-actions.open{display:flex}
  .nav-actions .nav-link{padding:11px 4px;border-bottom:1px solid var(--c-line)}
  .nav-actions .nav-link:last-of-type{border-bottom:0}
  .nav-actions .btn-x{margin-top:12px;width:100%}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-head{padding-top:38px}
  .article-wrap{padding:40px 0 64px}
  .related{padding:56px 0 64px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .container{padding-left:16px;padding-right:16px}
  .article-head h1{font-size:25px}
  .article-meta{gap:12px;font-size:12.5px}
  .article-body{font-size:16px}
  .pn-nav{grid-template-columns:1fr}
  .pn-item.next{text-align:left}
  .card-grid{grid-template-columns:1fr}
  .cta-box{padding:34px 24px;border-radius:16px}
  .cta-actions{width:100%}
  .cta-actions .btn-x{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .back-cta{padding-bottom:64px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --c-primary:#14697A;
  --c-primary-dark:#0E5666;
  --c-primary-tint:#E7F2F4;
  --c-accent:#E2903A;
  --c-accent-dark:#C97A28;
  --c-text:#10222B;
  --c-text-2:#5A6C76;
  --c-text-3:#8A9AA3;
  --c-bg:#FFFFFF;
  --c-bg-alt:#F5F9FA;
  --c-line:#E1EAED;
  --c-success:#2E8B6E;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --shadow-sm:0 1px 2px rgba(15,28,36,.04), 0 12px 32px -12px rgba(15,28,36,.10);
  --shadow-hover:0 18px 40px -14px rgba(20,105,122,.16);
  --font-base:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{color:var(--c-text);margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3;}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.22;}
h2{font-size:clamp(24px,3vw,32px);}
h3{font-size:20px;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-dark);text-decoration:underline;text-underline-offset:3px;}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(20,105,122,.14);border-radius:var(--r-btn);}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease;}
.site-header.is-scrolled{box-shadow:0 8px 24px -16px rgba(15,28,36,.35);}
.nav-top{position:relative;background:#fff;}
.nav-top-inner{display:flex;align-items:center;gap:22px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,#14697A,#1E8CA0);
  color:#fff;display:grid;place-items:center;font-weight:700;font-size:18px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:19px;font-weight:700;color:var(--c-text);letter-spacing:-.01em;}
.brand-text small{font-size:12px;color:var(--c-text-3);}

.nav-search{
  position:relative;display:flex;align-items:center;
  flex:1;max-width:560px;height:46px;
  border:1px solid var(--c-line);border-radius:12px;
  background:var(--c-bg-alt);padding:0 6px 0 44px;
  transition:border-color .18s ease, box-shadow .18s ease, background .18s ease;
}
.nav-search .s-icon{position:absolute;left:17px;top:50%;transform:translateY(-50%);color:var(--c-text-3);font-size:14px;}
.nav-search input{flex:1;border:0;background:transparent;height:100%;outline:none;color:var(--c-text);font-size:14px;}
.nav-search input::placeholder{color:var(--c-text-3);}
.nav-search button{
  height:34px;padding:0 18px;border:0;border-radius:999px;
  background:var(--c-primary);color:#fff;font-size:13px;cursor:pointer;
  transition:background .18s ease, transform .18s ease;
}
.nav-search button:hover{background:var(--c-primary-dark);}
.nav-search button:active{transform:translateY(1px);}
.nav-search:focus-within{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 4px rgba(20,105,122,.14);}

.nav-actions{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  font-size:14px;color:var(--c-text-2);padding:9px 11px;border-radius:8px;
  white-space:nowrap;transition:color .18s ease, background .18s ease;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-tint);text-decoration:none;}
.nav-link.active{color:var(--c-primary);font-weight:600;background:var(--c-primary-tint);}

.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;
  transition:background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.btn-x:hover{text-decoration:none;}
.btn-x:active{transform:translateY(1px);}
.btn-primary-x{background:var(--c-primary);color:#fff;}
.btn-primary-x:hover{background:var(--c-primary-dark);color:#fff;box-shadow:var(--shadow-hover);}
.btn-ghost-x{background:transparent;color:var(--c-primary);border-color:rgba(20,105,122,.3);}
.btn-ghost-x:hover{background:var(--c-primary-tint);color:var(--c-primary-dark);}
.btn-amber{background:var(--c-accent);color:#fff;}
.btn-amber:hover{background:var(--c-accent-dark);color:#fff;box-shadow:0 18px 40px -14px rgba(226,144,58,.5);}
.btn-sm-x{padding:9px 16px;font-size:14px;border-radius:9px;}
.btn-lg-x{padding:15px 28px;font-size:16px;}

.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:#fff;color:var(--c-text);
  align-items:center;justify-content:center;cursor:pointer;margin-left:auto;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}

.nav-chips-wrap{background:var(--c-bg-alt);border-top:1px solid var(--c-line);}
.nav-chips{display:flex;align-items:center;gap:8px;height:44px;overflow-x:auto;scrollbar-width:none;}
.nav-chips::-webkit-scrollbar{display:none;}
.chip-nav{
  display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
  font-size:13px;color:var(--c-text-2);padding:6px 14px;border-radius:999px;
  transition:background .18s ease, color .18s ease;
}
.chip-nav i{font-size:12px;}
.chip-nav:hover{background:#fff;color:var(--c-primary);text-decoration:none;}
.chip-nav.active{background:var(--c-primary);color:#fff;}

/* ---------- Page hero ---------- */
.page-lead{padding:26px 0 30px;background:var(--c-bg-alt);}
.breadcrumb-x{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-3);margin-bottom:18px;flex-wrap:wrap;}
.breadcrumb-x a{color:var(--c-text-3);}
.breadcrumb-x a:hover{color:var(--c-primary);}
.breadcrumb-x .sep{color:#C3D2D7;}
.breadcrumb-x .current{color:var(--c-text);}

.hero-panel{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:#0E2A31;min-height:330px;display:flex;align-items:center;
  box-shadow:var(--shadow-sm);
}
.hero-panel .hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.45;}
.hero-panel::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,42,49,.94) 0%,rgba(14,42,49,.72) 52%,rgba(14,42,49,.34) 100%);
}
.hero-inner{position:relative;z-index:2;padding:52px 46px;max-width:760px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;color:#B7E3EA;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
  padding:6px 14px;border-radius:999px;margin-bottom:18px;
}
.hero-inner h1{color:#fff;margin-bottom:16px;}
.hero-sub{font-size:18px;color:rgba(255,255,255,.82);max-width:620px;margin-bottom:26px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;}
.hero-meta span{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:#fff;background:rgba(255,255,255,.13);
  border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:7px 14px;
}
.hero-meta i{color:#F0C08A;}

/* ---------- Section base ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--c-bg-alt);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--c-primary);letter-spacing:.06em;margin-bottom:12px;
}
.section-head .kicker::before{content:"";width:24px;height:2px;background:var(--c-accent);border-radius:2px;}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:15px;color:var(--c-text-2);line-height:1.75;max-width:680px;}

/* ---------- Preparation ---------- */
.prep-grid{display:grid;grid-template-columns:264px 1fr;gap:44px;align-items:start;}
.prep-side h2{font-size:24px;margin-bottom:14px;}
.prep-side p{font-size:15px;color:var(--c-text-2);}
.prep-cards{display:grid;grid-template-columns:1.12fr .88fr;gap:20px;}
.prep-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;transition:box-shadow .18s ease, transform .18s ease, border-color .18s ease;
}
.prep-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#CFE3E7;}
.prep-card .ic{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--c-primary-tint);color:var(--c-primary);font-size:16px;margin-bottom:14px;
}
.prep-card h3{font-size:17px;margin-bottom:8px;}
.prep-card p{font-size:14.5px;color:var(--c-text-2);line-height:1.75;}
.prep-card.wide{grid-column:span 2;display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:center;}
.prep-card.wide .txt{padding-right:6px;}
.prep-card.wide img{width:100%;height:170px;object-fit:cover;border-radius:12px;}

/* ---------- Steps ---------- */
.steps{display:grid;gap:18px;}
.step-item{
  display:grid;grid-template-columns:104px 1fr;gap:26px;align-items:flex-start;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 28px;transition:box-shadow .18s ease, transform .18s ease, border-color .18s ease;
}
.step-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#CFE3E7;}
.step-num{
  font-size:42px;font-weight:800;line-height:1;letter-spacing:-.04em;
  color:var(--c-primary);font-variant-numeric:tabular-nums;opacity:.86;
}
.step-num small{display:block;font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--c-text-3);margin-top:8px;opacity:1;}
.step-body h3{font-size:18.5px;margin-bottom:10px;}
.step-body .lead-line{font-size:15px;color:var(--c-text-2);margin-bottom:4px;}
.tick-list{list-style:none;display:grid;gap:8px;margin-top:12px;}
.tick-list li{position:relative;padding-left:24px;font-size:14.5px;color:var(--c-text-2);line-height:1.75;}
.tick-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:3px;font-size:11px;color:var(--c-success);
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;
  padding:4px 11px;border-radius:999px;background:var(--c-primary-tint);color:var(--c-primary-dark);
}
.tag-amber{background:#FBF0E2;color:var(--c-accent-dark);}

/* ---------- Requirement strip ---------- */
.req-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.req-item{border-left:2px solid var(--c-primary-tint);padding-left:18px;}
.req-item .k{font-size:13px;color:var(--c-text-3);margin-bottom:8px;}
.req-item .v{font-size:26px;font-weight:700;color:var(--c-text);font-variant-numeric:tabular-nums;line-height:1.25;}
.req-item .d{font-size:13.5px;color:var(--c-text-2);margin-top:8px;}

/* ---------- Error cards ---------- */
.err-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.err-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px 24px;transition:box-shadow .18s ease, transform .18s ease, border-color .18s ease;
}
.err-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#CFE3E7;}
.err-card .err-head{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.err-card .err-head i{color:var(--c-accent);font-size:15px;}
.err-card h3{font-size:16.5px;}
.err-card p{font-size:14.5px;color:var(--c-text-2);line-height:1.75;}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{border:0;border-bottom:1px solid var(--c-line);background:transparent;}
.faq-acc .accordion-item:first-of-type{border-top:1px solid var(--c-line);}
.faq-acc .accordion-button{
  background:transparent;box-shadow:none;border-radius:0;
  font-size:16px;font-weight:600;color:var(--c-text);
  padding:20px 52px 20px 16px;line-height:1.6;
  transition:background .2s ease,color .2s ease;
}
.faq-acc .accordion-button:not(.collapsed){background:var(--c-primary-tint);color:var(--c-primary-dark);}
.faq-acc .accordion-button:focus{box-shadow:0 0 0 4px rgba(20,105,122,.14);}
.faq-acc .accordion-button::after{
  background-image:none;content:"+";font-family:var(--font-base);
  font-size:22px;font-weight:400;line-height:1;color:var(--c-primary);
  width:26px;height:26px;display:grid;place-items:center;
  transform:none;transition:transform .2s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.faq-acc .accordion-body{padding:4px 52px 24px 16px;font-size:15px;color:var(--c-text-2);line-height:1.8;}

/* ---------- Related strip ---------- */
.related-strip{display:flex;gap:20px;overflow-x:auto;padding-bottom:10px;scroll-snap-type:x mandatory;}
.related-strip::-webkit-scrollbar{height:6px;}
.related-strip::-webkit-scrollbar-thumb{background:#CFDDE1;border-radius:999px;}
.related-card{
  flex:0 0 318px;scroll-snap-align:start;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  display:flex;flex-direction:column;transition:box-shadow .18s ease, transform .18s ease, border-color .18s ease;
}
.related-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#CFE3E7;}
.related-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--c-primary-tint);}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;}
.related-card .rc-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.related-card h3{font-size:16px;line-height:1.5;}
.related-card p{font-size:14px;color:var(--c-text-2);line-height:1.7;}
.related-card .rc-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}

/* ---------- CTA ---------- */
.cta-panel{
  border-radius:var(--r-lg);padding:48px;position:relative;overflow:hidden;
  background:linear-gradient(120deg,#0E5666,#14697A 58%,#1C8398);
  color:#fff;display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
}
.cta-panel h2{color:#fff;margin-bottom:12px;font-size:clamp(22px,2.6vw,28px);}
.cta-panel p{color:rgba(255,255,255,.84);font-size:15px;max-width:600px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-panel .btn-amber:hover{background:#fff;color:var(--c-primary-dark);}
.cta-outline{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.cta-outline:hover{background:rgba(255,255,255,.14);color:#fff;}
.cta-deco{
  position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.16),rgba(255,255,255,0) 70%);
}

/* ---------- Footer ---------- */
.site-footer{background:#0E2A31;color:#B9CBCF;padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:linear-gradient(135deg,#1E8CA0,#14697A);}
.footer-brand strong{color:#fff;font-size:17px;}
.site-footer p{font-size:14px;color:#93A9AE;line-height:1.8;max-width:340px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:600;}
.site-footer ul{list-style:none;display:grid;gap:11px;}
.site-footer ul a{color:#B9CBCF;font-size:14px;}
.site-footer ul a:hover{color:#fff;text-decoration:none;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#93A9AE;line-height:1.7;}
.footer-contact i{color:#6FB3C0;margin-top:5px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7E959B;
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s ease, transform .3s ease;}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1399.98px){
  .prep-grid{grid-template-columns:230px 1fr;gap:34px;}
}
@media (max-width:1279.98px){
  .brand-text small{display:none;}
  .nav-actions{gap:2px;}
  .nav-link{font-size:13.5px;padding:8px 9px;}
}
@media (max-width:1199.98px){
  .req-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .cta-panel{padding:40px;}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  .nav-top-inner{flex-wrap:wrap;height:auto;padding-top:12px;padding-bottom:12px;gap:12px;}
  .nav-search{order:3;flex:1 0 100%;max-width:none;}
  .nav-toggle{display:flex;}
  .nav-actions{
    display:none;position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;margin:0;
    background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
    padding:12px 24px 18px;gap:4px;box-shadow:0 18px 30px -20px rgba(15,28,36,.4);
  }
  .nav-actions.open{display:flex;}
  .nav-link{padding:11px 12px;font-size:15px;}
  .nav-actions .btn-sm-x{margin-top:10px;width:100%;}
  .prep-grid{grid-template-columns:1fr;gap:26px;}
  .prep-cards{grid-template-columns:1fr;}
  .prep-card.wide{grid-column:span 1;grid-template-columns:1fr;gap:16px;}
  .hero-inner{padding:40px 30px;}
  .cta-panel{grid-template-columns:1fr;padding:36px 30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:30px;}
  .hero-panel{min-height:auto;}
  .hero-inner{padding:32px 22px;}
  .hero-sub{font-size:16px;}
  .req-grid{grid-template-columns:1fr;gap:24px;}
  .err-grid{grid-template-columns:1fr;}
  .step-item{grid-template-columns:1fr;gap:14px;padding:22px 20px;}
  .step-num{font-size:34px;}
  .step-num small{display:inline;margin-left:10px;}
  .related-card{flex:0 0 84%;}
  .cta-actions{width:100%;}
  .cta-actions .btn-x{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:34px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .faq-acc .accordion-body{padding-right:24px;}
}
@media (max-width:519.98px){
  h1{font-size:26px;}
  .brand-text strong{font-size:16px;}
  .hero-meta span{font-size:12px;padding:6px 11px;}
  .related-card{flex:0 0 90%;}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --c-primary:#14697A;
  --c-primary-dark:#0E5666;
  --c-primary-tint:#E7F2F4;
  --c-accent:#E2903A;
  --c-accent-hover:#C97A28;
  --c-accent-tint:#FBF0E2;
  --c-text:#10222B;
  --c-text-2:#5A6C76;
  --c-text-3:#8A9AA3;
  --c-bg:#FFFFFF;
  --c-bg-alt:#F5F9FA;
  --c-line:#E1EAED;
  --c-success:#2E8B6E;
  --r-card:16px;
  --r-big:20px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(15,28,36,.04),0 12px 32px -12px rgba(15,28,36,.10);
  --sh-2:0 18px 40px -14px rgba(20,105,122,.16);
  --ease:180ms ease;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",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;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0 0 .6em;color:var(--c-text);font-weight:700;letter-spacing:-.01em;line-height:1.3}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.22}
h2{font-size:clamp(24px,3vw,32px)}
h3{font-size:20px}
p{margin:0 0 1em}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c-primary-dark);text-decoration:underline;text-underline-offset:3px}
img{display:block;max-width:100%;height:auto}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:none}
.container{width:100%;padding-left:16px;padding-right:16px;margin-left:auto;margin-right:auto}
@media (min-width:768px){ .container{padding-left:24px;padding-right:24px} }
@media (min-width:1400px){ .container{max-width:1200px} }
@media (min-width:1200px) and (max-width:1399.98px){ .container{max-width:1140px} }

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;box-shadow:0 1px 0 var(--c-line)}
.nav-top{border-bottom:1px solid var(--c-line)}
.nav-top-inner{display:flex;align-items:center;gap:22px;min-height:72px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--c-primary),#2A93A6);color:#fff;display:grid;place-items:center;font-size:18px;font-weight:700;flex:0 0 auto}
.brand-text strong{display:block;font-size:18px;font-weight:700;color:var(--c-text);line-height:1.25;white-space:nowrap}
.brand-text small{display:block;font-size:12px;color:var(--c-text-3);line-height:1.5;white-space:nowrap}
.nav-search{position:relative;flex:1 1 auto;max-width:560px;display:flex;align-items:center}
.nav-search .s-icon{position:absolute;left:16px;font-size:15px;color:var(--c-text-3);pointer-events:none}
.nav-search input{width:100%;height:46px;border:1px solid var(--c-line);border-radius:12px;background:#fff;padding:0 96px 0 44px;font-size:14px;color:var(--c-text);transition:border-color var(--ease),box-shadow var(--ease)}
.nav-search input::placeholder{color:var(--c-text-3)}
.nav-search input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(20,105,122,.14)}
.nav-search button{position:absolute;right:5px;height:36px;padding:0 18px;border:0;border-radius:999px;background:var(--c-primary);color:#fff;font-size:13px;font-weight:600;cursor:pointer;transition:background var(--ease)}
.nav-search button:hover{background:var(--c-primary-dark)}
.nav-actions{display:flex;align-items:center;gap:18px;margin-left:auto}
.nav-link{font-size:14px;color:var(--c-text-2);white-space:nowrap;padding:6px 0}
.nav-link:hover{color:var(--c-primary);text-decoration:none}
.nav-link.active{color:var(--c-primary);font-weight:600;box-shadow:inset 0 -2px 0 var(--c-primary)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:12px;background:#fff;color:var(--c-text);font-size:18px;cursor:pointer}
.nav-toggle:hover{background:var(--c-bg-alt)}
.btn-x{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:var(--r-btn);padding:12px 22px;font-size:15px;font-weight:600;line-height:1.4;cursor:pointer;text-decoration:none;transition:transform var(--ease),background var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease)}
.btn-x:hover{text-decoration:none}
.btn-x:active{transform:translateY(1px)}
.btn-x:focus-visible{box-shadow:0 0 0 4px rgba(20,105,122,.14)}
.btn-primary-x{background:var(--c-primary);color:#fff}
.btn-primary-x:hover{background:var(--c-primary-dark);color:#fff}
.btn-amber{background:var(--c-accent);color:#fff}
.btn-amber:hover{background:var(--c-accent-hover);color:#fff}
.btn-ghost-x{background:transparent;border:1px solid rgba(20,105,122,.3);color:var(--c-primary)}
.btn-ghost-x:hover{background:var(--c-primary-tint);color:var(--c-primary-dark)}
.btn-sm-x{padding:9px 16px;font-size:13px;border-radius:10px}
.btn-lg-x{padding:15px 30px;font-size:16px}
.nav-chips-wrap{background:var(--c-bg-alt);border-bottom:1px solid var(--c-line)}
.nav-chips{display:flex;align-items:center;gap:10px;height:44px;overflow-x:auto;scrollbar-width:none}
.nav-chips::-webkit-scrollbar{display:none}
.chip-nav{display:inline-flex;align-items:center;gap:7px;white-space:nowrap;font-size:13px;color:var(--c-text-2);padding:6px 14px;border-radius:999px;transition:all var(--ease)}
.chip-nav:hover{background:#fff;color:var(--c-primary);text-decoration:none}
.chip-nav.active{background:var(--c-primary-tint);color:var(--c-primary);font-weight:600}

/* ============ 页面头 ============ */
.page-hero{position:relative;background:var(--c-bg-alt);overflow:hidden;padding:34px 0 56px}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(20,105,122,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(20,105,122,.045) 1px,transparent 1px);
  background-size:56px 56px;pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-text-3);margin-bottom:22px}
.crumb a{color:var(--c-text-3)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:#C3D2D7}
.crumb .now{color:var(--c-text)}
.hero-tag{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:var(--c-primary);background:#fff;border:1px solid rgba(20,105,122,.16);border-radius:999px;padding:6px 14px;margin-bottom:18px}
.page-hero h1{max-width:900px;margin-bottom:16px}
.page-hero .lead{max-width:760px;font-size:17px;line-height:1.85;color:var(--c-text-2);margin-bottom:26px}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px}
.fact{display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--c-line);border-radius:999px;padding:8px 16px;font-size:13px;color:var(--c-text-2);box-shadow:var(--sh-1)}
.fact i{color:var(--c-primary)}
.fact b{color:var(--c-text);font-variant-numeric:tabular-nums}

/* ============ 区块 ============ */
.section{padding:88px 0}
.section-alt{background:var(--c-bg-alt)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--c-primary);background:var(--c-primary-tint);border-radius:999px;padding:5px 13px;margin-bottom:14px}
.section-head p{font-size:15px;color:var(--c-text-2);margin:0}

/* ============ 锚点侧栏 ============ */
.side-sticky{position:sticky;top:136px}
.side-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1)}
.side-card h3{font-size:16px;margin-bottom:14px}
.side-list a{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--c-text-2);padding:10px 12px;border-radius:10px;transition:all var(--ease)}
.side-list a i{font-size:13px;color:var(--c-text-3)}
.side-list a:hover{background:var(--c-primary-tint);color:var(--c-primary);text-decoration:none}
.side-list a:hover i{color:var(--c-primary)}
.side-help{margin-top:18px;padding:18px;border-radius:14px;background:var(--c-primary-tint);border:1px solid rgba(20,105,122,.12)}
.side-help h4{font-size:15px;margin-bottom:8px}
.side-help p{font-size:13px;line-height:1.75;color:var(--c-text-2);margin:0 0 14px}

/* ============ 问答 ============ */
.qa-group{margin-bottom:40px}
.qa-group-head{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.qa-group-head .idx{font-size:14px;font-weight:700;color:var(--c-primary);background:var(--c-primary-tint);border-radius:8px;padding:4px 10px;font-variant-numeric:tabular-nums}
.qa-group-head h2{font-size:22px;margin:0}
.qa-group-note{font-size:14px;color:var(--c-text-3);margin:0 0 16px}
.acc-x{margin:0}
.acc-x .accordion-item{border:0;border-bottom:1px solid var(--c-line);background:transparent}
.acc-x .accordion-item:first-of-type{border-top:1px solid var(--c-line)}
.acc-x .accordion-button{position:relative;width:100%;background:transparent;box-shadow:none;border:0;text-align:left;padding:18px 48px 18px 14px;font-size:16px;font-weight:600;color:var(--c-text);border-radius:10px;transition:background var(--ease),color var(--ease)}
.acc-x .accordion-button:hover{background:rgba(231,242,244,.6)}
.acc-x .accordion-button:not(.collapsed){color:var(--c-primary);background:var(--c-primary-tint)}
.acc-x .accordion-button:focus{box-shadow:0 0 0 4px rgba(20,105,122,.14);outline:none}
.acc-x .accordion-button::after{display:none}
.acc-icon{position:absolute;right:18px;top:50%;width:14px;height:14px;transform:translateY(-50%)}
.acc-icon::before,.acc-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform 200ms ease}
.acc-icon::before{left:0;top:6px;width:14px;height:2px}
.acc-icon::after{left:6px;top:0;width:2px;height:14px}
.acc-x .accordion-button:not(.collapsed) .acc-icon::after{transform:scaleY(0)}
.acc-x .accordion-body{padding:6px 48px 20px 14px;font-size:15px;line-height:1.85;color:var(--c-text-2)}
.acc-x .accordion-body p:last-child{margin-bottom:0}
.acc-x .accordion-body strong{color:var(--c-text)}

/* ============ 公告时间线 ============ */
.timeline{position:relative;padding-left:0}
.timeline::before{content:"";position:absolute;left:7px;top:10px;bottom:10px;width:2px;background:var(--c-line)}
.tl-item{position:relative;padding-left:38px;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:2px;top:8px;width:12px;height:12px;border-radius:50%;background:#fff;border:2px solid var(--c-primary)}
.tl-item.is-new::before{background:var(--c-accent);border-color:var(--c-accent)}
.tl-date{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums;margin-bottom:6px}
.tl-item h3{font-size:17px;margin-bottom:6px}
.tl-item p{font-size:14px;line-height:1.8;color:var(--c-text-2);margin:0 0 8px}
.badge-x{display:inline-flex;align-items:center;gap:6px;font-size:12px;border-radius:999px;padding:3px 11px;background:var(--c-primary-tint);color:var(--c-primary);font-weight:600}
.badge-amber{background:var(--c-accent-tint);color:var(--c-accent-hover)}
.badge-line{background:#fff;border:1px solid var(--c-line);color:var(--c-text-2);font-weight:500}

/* ============ 相关入口卡 ============ */
.card-x{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease)}
.card-x:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.card-x .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#E7F2F4,#F5F9FA)}
.card-x .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease}
.card-x:hover .thumb img{transform:scale(1.03)}
.card-x .body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.card-x h3{font-size:17px;margin-bottom:10px}
.card-x h3 a{color:var(--c-text)}
.card-x h3 a:hover{color:var(--c-primary);text-decoration:none}
.card-x p{font-size:14px;line-height:1.75;color:var(--c-text-2);margin:0 0 16px}
.card-x .meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums}
.link-more{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600}
.link-more i{transition:transform var(--ease)}
.link-more:hover i{transform:translateX(3px)}

/* ============ CTA ============ */
.cta-band{background:var(--c-primary-dark);color:#fff;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-80px;top:-60px;width:320px;height:320px;border-radius:50%;background:rgba(255,255,255,.06)}
.cta-band .container{position:relative;z-index:1}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin-bottom:24px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.cta-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;border-top:1px solid rgba(255,255,255,.16);padding-top:26px}
.cta-grid .cell{display:flex;gap:12px;align-items:flex-start}
.cta-grid .cell i{font-size:17px;color:#8FD0DC;margin-top:4px}
.cta-grid .cell b{display:block;font-size:14px;color:#fff;font-weight:600}
.cta-grid .cell span{font-size:13px;color:rgba(255,255,255,.72);line-height:1.7;word-break:break-all}
.btn-light-x{background:#fff;color:var(--c-primary-dark)}
.btn-light-x:hover{background:#E9F3F5;color:var(--c-primary-dark)}
.btn-outline-light-x{background:transparent;border:1px solid rgba(255,255,255,.5);color:#fff}
.btn-outline-light-x:hover{background:rgba(255,255,255,.12);color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:#0E2A31;color:rgba(255,255,255,.72);padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand strong{color:#fff;font-size:17px;font-weight:700}
.site-footer p{font-size:13px;line-height:1.85;color:rgba(255,255,255,.66);margin:0}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.site-footer ul li{margin-bottom:11px}
.site-footer a{color:rgba(255,255,255,.72);font-size:13.5px}
.site-footer a:hover{color:#fff;text-decoration:none}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;line-height:1.7}
.footer-contact i{margin-top:5px;color:#8FD0DC}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55)}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-actions{gap:13px}
  .nav-link{font-size:13px}
  .side-sticky{top:120px}
}
@media (max-width:991.98px){
  .nav-top-inner{flex-wrap:wrap;gap:14px;padding-top:12px;padding-bottom:12px}
  .brand-text small{display:none}
  .nav-search{order:3;flex:1 1 100%;max-width:none}
  .nav-search input{background:var(--c-bg-alt)}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto}
  .nav-actions{display:none;order:4;flex:1 1 100%;flex-direction:column;align-items:stretch;gap:4px;margin:0;padding:10px 0 4px;border-top:1px solid var(--c-line)}
  .nav-actions.open{display:flex}
  .nav-link{padding:11px 6px;font-size:14px;border-radius:8px}
  .nav-link.active{box-shadow:none;background:var(--c-primary-tint)}
  .nav-actions .btn-x{margin-top:8px;justify-content:center}
  .section{padding:72px 0}
  .side-sticky{position:static}
  .cta-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  .section{padding:56px 0}
  .page-hero{padding:24px 0 44px}
  .page-hero .lead{font-size:15.5px}
  .acc-x .accordion-button{font-size:15px;padding:16px 44px 16px 12px}
  .acc-x .accordion-body{padding:4px 20px 18px 12px;font-size:14.5px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:34px}
  .timeline::before{left:5px}
  .tl-item{padding-left:30px}
  .tl-item::before{left:0}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --c-primary:#14697A;
  --c-primary-dark:#0E5666;
  --c-primary-tint:#E7F2F4;
  --c-accent:#E2903A;
  --c-accent-dark:#C97A28;
  --c-accent-tint:#FBF1E4;
  --c-text:#10222B;
  --c-text-2:#5A6C76;
  --c-text-3:#8A9AA3;
  --c-bg:#FFFFFF;
  --c-bg-alt:#F5F9FA;
  --c-line:#E1EAED;
  --c-success:#2E8B6E;
  --c-danger:#C4553F;
  --c-footer:#0E2A31;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --r-pill:999px;
  --sh:0 1px 2px rgba(15,28,36,.04),0 12px 32px -12px rgba(15,28,36,.10);
  --sh-hover:0 18px 40px -14px rgba(20,105,122,.16);
  --maxw:1200px;
  --gap:24px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text-2);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease;}
a:hover{color:var(--c-primary-dark);}
h1,h2,h3,h4{color:var(--c-text);margin:0;font-weight:800;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--c-text);}
:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(20,105,122,.14);border-radius:8px;}
.container{max-width:var(--maxw);padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}
.section{padding:96px 0;}
.section-alt{background:var(--c-bg-alt);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--c-primary);background:var(--c-primary-tint);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:16px;}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3;margin-bottom:14px;}
.section-head p{font-size:15px;line-height:1.75;color:var(--c-text-2);}

/* ---------- buttons ---------- */
.btn-x{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-btn);font-size:15px;font-weight:700;cursor:pointer;transition:transform .16s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease;text-align:center;}
.btn-x:active{transform:translateY(1px);}
.btn-primary-x{background:var(--c-primary);color:#fff;}
.btn-primary-x:hover{background:var(--c-primary-dark);color:#fff;box-shadow:var(--sh-hover);}
.btn-amber{background:var(--c-accent);color:#fff;}
.btn-amber:hover{background:var(--c-accent-dark);color:#fff;box-shadow:0 14px 30px -12px rgba(226,144,58,.5);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:rgba(20,105,122,.3);}
.btn-ghost:hover{background:var(--c-primary-tint);color:var(--c-primary-dark);border-color:rgba(20,105,122,.45);}
.btn-sm-x{height:38px;padding:0 16px;font-size:14px;border-radius:var(--r-btn);}
.link-more{font-size:14px;font-weight:700;display:inline-flex;align-items:center;gap:6px;}
.link-more i{transition:transform .18s ease;font-size:12px;}
.link-more:hover i{transform:translateX(3px);}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--c-line);}
.nav-top-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;text-decoration:none;}
.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,#14697A,#1E8BA0);color:#fff;display:grid;place-items:center;font-weight:800;font-size:17px;flex-shrink:0;}
.brand-text strong{display:block;font-size:18px;line-height:1.2;color:var(--c-text);font-weight:800;letter-spacing:-.01em;}
.brand-text small{display:block;font-size:11.5px;color:var(--c-text-3);line-height:1.5;margin-top:2px;}
.nav-search{position:relative;flex:1 1 auto;max-width:560px;display:flex;align-items:center;height:46px;padding:0 5px 0 42px;background:#fff;border:1px solid var(--c-line);border-radius:12px;transition:border-color .18s ease,box-shadow .18s ease;}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(20,105,122,.12);}
.nav-search .s-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);font-size:14px;color:var(--c-text-3);}
.nav-search input{flex:1;height:100%;border:0;outline:none;background:transparent;font-size:14px;min-width:0;}
.nav-search input::placeholder{color:var(--c-text-3);}
.nav-search button{height:34px;padding:0 18px;border:0;border-radius:var(--r-pill);background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background-color .18s ease;}
.nav-search button:hover{background:var(--c-primary-dark);}
.nav-actions{display:flex;align-items:center;gap:4px;margin-left:auto;flex-shrink:0;}
.nav-link{font-size:14.5px;color:var(--c-text-2);padding:8px 12px;border-radius:var(--r-btn);white-space:nowrap;background:transparent;border:0;}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-tint);}
.nav-link.active{color:var(--c-primary);font-weight:700;background:var(--c-primary-tint);}
.nav-actions .btn-amber{margin-left:8px;}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:#fff;color:var(--c-text);font-size:16px;margin-left:auto;cursor:pointer;}
.nav-chips-wrap{border-top:1px solid var(--c-line);background:var(--c-bg-alt);}
.nav-chips{display:flex;align-items:center;gap:8px;height:44px;overflow-x:auto;scrollbar-width:none;}
.nav-chips::-webkit-scrollbar{display:none;}
.chip-nav{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;border-radius:var(--r-pill);font-size:13.5px;color:var(--c-text-2);white-space:nowrap;border:1px solid transparent;transition:all .18s ease;}
.chip-nav:hover{color:var(--c-primary);background:var(--c-primary-tint);}
.chip-nav.active{background:var(--c-primary);color:#fff;font-weight:600;}

/* ---------- page hero ---------- */
.page-hero{position:relative;padding:56px 0 64px;background:linear-gradient(180deg,rgba(245,249,250,.94),rgba(255,255,255,.96)),url("/assets/images/backpic/back-2.webp") center/cover no-repeat;border-bottom:1px solid var(--c-line);}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-3);margin-bottom:22px;flex-wrap:wrap;}
.crumb a{color:var(--c-text-3);}
.crumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.crumb .sep{color:#C4D2D7;}
.crumb .cur{color:var(--c-text);font-weight:600;}
.page-hero h1{font-size:clamp(28px,4vw,42px);line-height:1.24;margin-bottom:16px;max-width:820px;}
.page-hero .hero-sub{font-size:18px;color:var(--c-text-2);max-width:720px;margin-bottom:26px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px;}
.hero-facts li{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-pill);padding:7px 16px;font-size:13.5px;color:var(--c-text-2);box-shadow:0 1px 2px rgba(15,28,36,.04);}
.hero-facts li i{color:var(--c-primary);font-size:12px;}

/* ---------- filter bar ---------- */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:16px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh);padding:16px 20px;margin-top:-32px;position:relative;z-index:5;}
.filter-group{display:flex;align-items:center;gap:8px;}
.filter-group label{font-size:13.5px;color:var(--c-text-3);white-space:nowrap;}
.filter-select{height:40px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:#fff;padding:0 34px 0 14px;font-size:14px;color:var(--c-text);appearance:none;background-image:linear-gradient(45deg,transparent 50%,#8A9AA3 50%),linear-gradient(135deg,#8A9AA3 50%,transparent 50%);background-position:calc(100% - 18px) 17px,calc(100% - 13px) 17px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;cursor:pointer;}
.filter-select:focus{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(20,105,122,.12);outline:none;}
.seg{display:flex;gap:6px;background:var(--c-bg-alt);border-radius:var(--r-pill);padding:4px;}
.seg a{font-size:13.5px;padding:6px 16px;border-radius:var(--r-pill);color:var(--c-text-2);}
.seg a.active{background:#fff;color:var(--c-primary);font-weight:700;box-shadow:0 1px 2px rgba(15,28,36,.06);}
.filter-count{margin-left:auto;font-size:13.5px;color:var(--c-text-3);}
.filter-count b{color:var(--c-primary);font-size:16px;font-weight:800;}

/* ---------- download list ---------- */
.dl-list{display:flex;flex-direction:column;gap:20px;margin-top:36px;}
.dl-item{display:flex;gap:22px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;}
.dl-item:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:#CFE2E6;}
.dl-cover{width:220px;height:140px;flex-shrink:0;border-radius:12px;overflow:hidden;background:linear-gradient(135deg,#E7F2F4,#D5E7EB);}
.dl-cover img{width:100%;height:100%;object-fit:cover;}
.dl-body{flex:1;min-width:0;display:flex;flex-direction:column;}
.dl-title{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px;}
.dl-title h3{font-size:19px;line-height:1.4;}
.dl-title h3 a{color:var(--c-text);}
.dl-title h3 a:hover{color:var(--c-primary);}
.badge-x{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;padding:3px 11px;border-radius:var(--r-pill);background:var(--c-primary-tint);color:var(--c-primary);white-space:nowrap;}
.badge-amber{background:var(--c-accent-tint);color:var(--c-accent-dark);}
.badge-line{background:#fff;border:1px solid var(--c-line);color:var(--c-text-3);}
.dl-desc{font-size:15px;line-height:1.75;color:var(--c-text-2);margin-bottom:14px;}
.dl-meta{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--c-text-3);margin-bottom:16px;}
.dl-meta span{display:inline-flex;align-items:center;gap:6px;}
.dl-meta i{font-size:11.5px;color:#9FB0B7;}
.dl-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:auto;}
.dl-actions .hint{font-size:12.5px;color:var(--c-text-3);}

/* ---------- checklist / staggered blocks ---------- */
.stagger{display:flex;flex-direction:column;gap:20px;}
.stagger-row{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh);}
.stagger-row:nth-child(even){grid-template-columns:.95fr 1.05fr;}
.stagger-row:nth-child(even) .stagger-media{order:2;}
.stagger-media{border-radius:var(--r-card);overflow:hidden;aspect-ratio:16/10;background:linear-gradient(135deg,#E7F2F4,#DCEBEE);}
.stagger-media img{width:100%;height:100%;object-fit:cover;}
.stagger-body h3{font-size:20px;margin-bottom:12px;}
.stagger-body p{font-size:15px;line-height:1.75;margin-bottom:14px;}
.tick-list{display:flex;flex-direction:column;gap:8px;margin-bottom:16px;}
.tick-list li{display:flex;gap:10px;font-size:14.5px;color:var(--c-text-2);align-items:flex-start;}
.tick-list i{color:var(--c-success);font-size:13px;margin-top:6px;}

/* ---------- steps ---------- */
.step-list{display:flex;flex-direction:column;border-top:1px solid var(--c-line);}
.step-item{display:grid;grid-template-columns:120px 1fr;gap:28px;padding:30px 0;border-bottom:1px solid var(--c-line);}
.step-num{font-size:44px;font-weight:800;line-height:1;color:var(--c-primary);opacity:.28;letter-spacing:-.03em;}
.step-body h3{font-size:20px;margin-bottom:10px;}
.step-body p{font-size:15px;line-height:1.75;margin-bottom:12px;}
.step-points{display:flex;flex-wrap:wrap;gap:10px;}
.step-points li{font-size:13px;color:var(--c-text-2);background:var(--c-bg-alt);border:1px solid var(--c-line);border-radius:var(--r-pill);padding:5px 14px;}

/* ---------- data strip ---------- */
.data-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.data-cell{border-left:2px solid var(--c-line);padding-left:20px;}
.data-cell strong{display:block;font-size:clamp(30px,3.6vw,40px);font-weight:800;color:var(--c-primary);line-height:1.1;letter-spacing:-.02em;}
.data-cell span{display:block;font-size:14px;color:var(--c-text-2);margin-top:8px;}
.data-cell em{display:block;font-style:normal;font-size:12.5px;color:var(--c-text-3);margin-top:4px;}

/* ---------- faq ---------- */
.accordion-x{border-top:1px solid var(--c-line);}
.acc-item{border-bottom:1px solid var(--c-line);}
.acc-btn{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 4px;background:transparent;border:0;text-align:left;font-size:17px;font-weight:700;color:var(--c-text);cursor:pointer;transition:background-color .2s ease,color .2s ease;}
.acc-btn:hover{color:var(--c-primary);}
.acc-btn .plus{flex-shrink:0;width:28px;height:28px;border-radius:50%;border:1px solid var(--c-line);display:grid;place-items:center;color:var(--c-primary);font-size:12px;transition:transform .2s ease,background-color .2s ease;}
.acc-btn:not(.collapsed){color:var(--c-primary);background:var(--c-primary-tint);border-radius:12px;padding-left:16px;padding-right:16px;}
.acc-btn:not(.collapsed) .plus{transform:rotate(180deg);background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.acc-body{padding:0 4px 24px;font-size:15px;line-height:1.8;color:var(--c-text-2);}
.acc-body ul{margin-top:10px;display:flex;flex-direction:column;gap:6px;}
.acc-body li{position:relative;padding-left:16px;font-size:14.5px;}
.acc-body li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:5px;border-radius:50%;background:var(--c-primary);opacity:.5;}

/* ---------- cta ---------- */
.cta-band{background:var(--c-footer);border-radius:var(--r-lg);padding:52px 48px;display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;position:relative;overflow:hidden;}
.cta-band::after{content:"云";position:absolute;right:32px;bottom:-40px;font-size:200px;font-weight:800;color:rgba(255,255,255,.05);line-height:1;pointer-events:none;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.72);font-size:15px;line-height:1.8;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;position:relative;z-index:2;}
.cta-actions .btn-ghost{color:#fff;border-color:rgba(255,255,255,.42);}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.7);}

/* ---------- footer ---------- */
.site-footer{background:var(--c-footer);color:rgba(255,255,255,.68);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand strong{color:#fff;font-size:17px;font-weight:800;}
.footer-brand .brand-mark{background:linear-gradient(135deg,#1E8BA0,#14697A);}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:700;}
.site-footer ul{display:flex;flex-direction:column;gap:10px;}
.site-footer ul a{color:rgba(255,255,255,.68);font-size:14px;}
.site-footer ul a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;align-items:flex-start;line-height:1.7;}
.footer-contact i{margin-top:6px;color:var(--c-accent);font-size:13px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s ease,transform .3s ease;}
.reveal.in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .nav-actions .nav-link{padding:8px 9px;font-size:13.5px;}
  .brand-text strong{font-size:16.5px;}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  .nav-toggle{display:grid;place-items:center;}
  .nav-top-inner{flex-wrap:wrap;height:auto;padding:14px 0;gap:14px;}
  .nav-search{order:3;flex:1 0 100%;max-width:none;}
  .nav-actions{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--c-line);box-shadow:var(--sh);flex-direction:column;align-items:stretch;gap:0;padding:10px 16px 18px;display:none;margin-left:0;}
  .nav-actions.open{display:flex;}
  .nav-actions .nav-link{padding:12px 10px;font-size:15px;border-radius:10px;}
  .nav-actions .btn-amber{margin:10px 0 0;justify-content:center;}
  .page-hero{padding:40px 0 56px;}
  .filter-bar{margin-top:-24px;}
  .stagger-row,.stagger-row:nth-child(even){grid-template-columns:1fr;}
  .stagger-row:nth-child(even) .stagger-media{order:0;}
  .data-strip{grid-template-columns:repeat(2,1fr);gap:28px 24px;}
  .cta-band{grid-template-columns:1fr;padding:40px 28px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .brand-text small{display:none;}
  .page-hero h1{font-size:26px;}
  .page-hero .hero-sub{font-size:16px;}
  .dl-item{flex-direction:column;gap:16px;}
  .dl-cover{width:100%;height:180px;}
  .step-item{grid-template-columns:1fr;gap:12px;padding:24px 0;}
  .step-num{font-size:34px;}
  .data-strip{grid-template-columns:1fr 1fr;gap:24px 16px;}
  .data-cell{padding-left:14px;}
  .filter-bar{padding:14px;gap:12px;}
  .filter-group{flex:1 1 100%;}
  .filter-select{flex:1;}
  .filter-count{margin-left:0;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:56px;}
  .acc-btn{font-size:15.5px;padding:18px 2px;}
  .cta-band h2{font-size:22px;}
}
@media (max-width:519.98px){
  .dl-actions{flex-direction:column;align-items:stretch;}
  .dl-actions .btn-x{width:100%;}
  .seg{width:100%;overflow-x:auto;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn-x{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
}