/* roulang page: index */
:root{
  --primary:#0FA3A1;
  --primary-dark:#0C8A88;
  --primary-light:#E6F4F5;
  --accent:#FF7A59;
  --accent-dark:#E5634A;
  --dark:#0D343A;
  --light-bg:#F4FAFA;
  --card-bg:#FFFFFF;
  --border:#E1EEF0;
  --text:#14333A;
  --text-muted:#5B767C;
  --rating:#F5A623;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:999px;
  --radius-input:10px;
  --shadow-card:0 2px 10px rgba(13,52,58,0.06);
  --shadow-hover:0 14px 28px rgba(13,52,58,0.12);
  --transition:all .3s cubic-bezier(.25,.8,.25,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,sans-serif;
  font-size:16px;line-height:1.8;color:var(--text);
  background:var(--light-bg);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-dark)}
img{max-width:100%;height:auto}
ul,ol{list-style:none}
.container{max-width:1200px;padding-left:24px;padding-right:24px}

/* ===== Buttons ===== */
.btn{border-radius:var(--radius-btn);padding:10px 28px;font-weight:600;border:2px solid transparent;transition:var(--transition)}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)!important}
.btn:focus{box-shadow:none}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-accent:hover,.btn-accent:focus{background:var(--accent-dark);border-color:var(--accent-dark);color:#fff}
.btn-outline-primary{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-outline-primary:hover{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-dark{background:var(--dark);border-color:var(--dark);color:#fff}
.btn-dark:hover{background:#123F46;border-color:#123F46;color:#fff}
.btn-sm{padding:6px 20px;font-size:14px}
.btn-block{width:100%}
.btn:focus-visible{outline:3px solid rgba(15,163,161,.3);outline-offset:2px}

/* ===== Badges & Tags ===== */
.badge-cat{
  display:inline-block;background:var(--primary-light);color:var(--primary);
  font-size:12px;font-weight:600;padding:4px 14px;border-radius:999px;
  letter-spacing:.5px;
}
.badge-hot{background:#FFF3EB;color:var(--accent);font-size:12px;font-weight:600;padding:4px 14px;border-radius:999px}
.rating-star{color:var(--rating);font-size:14px;letter-spacing:2px}
.rating-num{color:var(--text-muted);font-size:13px;font-weight:400}

/* ===== Cards ===== */
.card{border:none;border-radius:var(--radius-card);background:var(--card-bg);box-shadow:var(--shadow-card);transition:var(--transition);overflow:hidden}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.card-img-wrap{position:relative;overflow:hidden;background:var(--primary-light)}
.card-img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-img-wrap img{transform:scale(1.04)}
.card-overlay-tag{position:absolute;top:14px;left:14px;z-index:2}
.card-body{padding:22px}
.card-title{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px;color:var(--text)}
.card-title a{color:var(--text)}
.card-title a:hover{color:var(--primary)}
.card-text{font-size:14px;color:var(--text-muted);line-height:1.7}
.card-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-muted);margin-top:12px}
.btn-detail{
  display:inline-block;font-size:13px;font-weight:600;color:var(--primary);
  border:1.5px solid var(--primary);border-radius:999px;padding:6px 18px;
  transition:var(--transition);
}
.btn-detail:hover{background:var(--primary);color:#fff}

/* ===== Header / Nav ===== */
.site-header{position:sticky;top:0;z-index:1030;box-shadow:0 4px 20px rgba(13,52,58,.08);background:#fff}
.topbar{background:var(--light-bg);border-bottom:1px solid var(--border);font-size:13px;color:var(--text-muted);padding:6px 0}
.topbar .container{display:flex;align-items:center;justify-content:space-between}
.topbar-left{display:flex;align-items:center;gap:12px}
.topbar-right{display:flex;align-items:center;gap:12px}
.topbar a{color:var(--text-muted)}
.topbar a:hover{color:var(--primary)}
.main-navbar{background:#fff;padding:12px 0}
.main-navbar .container{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.logo svg{flex-shrink:0}
.logo-text{font-size:20px;font-weight:800;color:var(--dark);line-height:1.2;letter-spacing:.5px}
.logo-text span{color:var(--primary)}
.nav-menu{display:flex;align-items:center;gap:6px;margin:0;padding:0;flex-wrap:wrap}
.nav-menu .nav-item{list-style:none}
.nav-menu .nav-link{
  color:var(--text);font-size:15px;font-weight:500;padding:8px 16px;border-radius:999px;
  transition:var(--transition);position:relative;
}
.nav-menu .nav-link:hover{color:var(--primary);background:var(--primary-light)}
.nav-menu .nav-link.active{color:var(--primary);font-weight:700;background:var(--primary-light)}
.nav-menu .nav-link.active::after{
  content:'';position:absolute;bottom:2px;left:16px;right:16px;height:2px;
  background:var(--primary);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.nav-search{display:flex;align-items:center;position:relative;width:200px}
.nav-search .form-control{
  border:1.5px solid var(--border);border-radius:var(--radius-input) 0 0 var(--radius-input);
  padding:8px 14px;font-size:14px;background:var(--light-bg);
  transition:var(--transition);
}
.nav-search .form-control:focus{background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(15,163,161,.1)}
.nav-search .btn-search{
  border:1.5px solid var(--border);border-left:none;background:var(--light-bg);
  border-radius:0 var(--radius-input) var(--radius-input) 0;color:var(--text-muted);
  padding:8px 14px;transition:var(--transition);
}
.nav-search .btn-search:hover{background:var(--primary);border-color:var(--primary);color:#fff}
.hot-tags{display:flex;align-items:center;gap:4px;font-size:12px;color:var(--text-muted);white-space:nowrap}
.hot-tags a{color:var(--text-muted);padding:2px 8px;border-radius:999px;background:var(--light-bg);transition:var(--transition)}
.hot-tags a:hover{color:var(--primary);background:var(--primary-light)}
.btn-login-top{
  background:var(--primary);color:#fff;border:none;border-radius:var(--radius-btn);
  padding:8px 22px;font-size:14px;font-weight:600;transition:var(--transition);
}
.btn-login-top:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px)}
.navbar-toggler{border:1.5px solid var(--border);background:transparent;border-radius:var(--radius-input);padding:8px 12px;color:var(--text);display:none;cursor:pointer}
.navbar-toggler i{font-size:18px}
.collapse-menu{flex-basis:100%;display:none;padding-top:14px}
.collapse-menu.show{display:block}
.collapse-menu .nav-menu{flex-direction:column;align-items:stretch;gap:2px}
.collapse-menu .nav-menu .nav-link{display:block;border-radius:10px;padding:10px 16px}
.collapse-menu .nav-search{width:100%;margin-top:10px}
.collapse-menu .hot-tags{margin-top:10px;flex-wrap:wrap}

/* ===== Hero ===== */
.hero{
  position:relative;background:linear-gradient(135deg,#E0F2F3 0%,#F4FAFA 55%,#FFF1EC 100%);
  padding:72px 0 60px;overflow:hidden;
}
.hero::before{
  content:'';position:absolute;top:0;right:0;width:50%;height:100%;
  background:url('/assets/images/backpic/back-1.png') no-repeat center/cover;
  opacity:.12;pointer-events:none;
}
.hero-decoration{position:absolute;bottom:-60px;left:-40px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(15,163,161,.12),transparent 70%);pointer-events:none}
.hero-decoration2{position:absolute;top:30px;right:30px;width:160px;height:160px;border-radius:50%;background:radial-gradient(circle,rgba(255,122,89,.1),transparent 70%);pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero-content{padding-right:30px}
.hero h1{
  font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.3;color:var(--dark);
  margin-bottom:18px;
}
.hero h1 .accent-text{color:var(--accent);position:relative}
.hero-sub{font-size:16px;line-height:1.8;color:var(--text-muted);margin-bottom:30px;max-width:520px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:36px}
.hero-img-wrap{position:relative}
.hero-img-wrap img{border-radius:20px;object-fit:cover;width:100%;height:380px;box-shadow:0 20px 50px rgba(13,52,58,.15)}
.hero-info-card{
  position:absolute;bottom:18px;left:-30px;background:#fff;border-radius:14px;
  padding:14px 20px;box-shadow:0 10px 30px rgba(13,52,58,.12);display:flex;align-items:center;gap:14px;
  max-width:280px;border:1px solid var(--border);
}
.hero-info-card .ic-icon{width:40px;height:40px;border-radius:10px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:18px;flex-shrink:0}
.hero-info-card .ic-title{font-size:14px;font-weight:600;color:var(--text)}
.hero-info-card .ic-desc{font-size:12px;color:var(--text-muted);line-height:1.4}
.hero-trust{display:flex;gap:30px;flex-wrap:wrap;margin-top:40px;padding-top:24px;border-top:1px solid rgba(13,52,58,.08)}
.trust-item{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:600;color:var(--text)}
.trust-item i{color:var(--primary);font-size:18px}

/* ===== Section ===== */
.section{padding:80px 0}
.section-alt{background:#fff}
.section-head{margin-bottom:44px}
.section-head .sec-label{display:inline-block;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-light);padding:4px 16px;border-radius:999px;margin-bottom:12px;letter-spacing:1px}
.section-head h2{font-size:clamp(20px,2.2vw,28px);font-weight:700;color:var(--dark);position:relative;padding-left:16px}
.section-head h2::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:22px;background:var(--primary);border-radius:2px}
.section-head p{color:var(--text-muted);font-size:15px;margin-top:8px;max-width:640px}

/* ===== Featured Grid ===== */
.feat-card{height:100%;display:flex;flex-direction:column}
.feat-card .card-img-wrap{flex-shrink:0}
.feat-lg .card-img-wrap{height:280px}
.feat-sm .card-img-wrap{height:340px}
.feat-card .card-body{display:flex;flex-direction:column;flex:1}
.feat-card .btn-detail{margin-top:auto;align-self:flex-start}
.feat-card .card-title{font-size:17px;font-weight:600}
.grid-gap{margin-bottom:24px}

/* ===== Testimonials ===== */
.testi-wrap{max-width:680px;margin:0 auto;text-align:center}
.testi-card{
  background:#fff;border-radius:16px;padding:40px 36px;box-shadow:var(--shadow-card);
  border:1px solid var(--border);margin:0 auto;max-width:680px;position:relative;
}
.testi-card .quote-icon{font-size:36px;color:var(--primary-light);margin-bottom:10px}
.testi-card .testi-text{font-size:16px;line-height:1.9;color:var(--text);margin:16px 0 24px;text-align:center}
.testi-user{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}
.testi-avatar{width:60px;height:60px;border-radius:50%;object-fit:cover;border:3px solid var(--primary-light)}
.testi-name{font-weight:600;color:var(--text);font-size:15px}
.testi-date{color:var(--text-muted);font-size:12px}
.carousel-indicators{bottom:-40px}
.carousel-indicators [data-bs-target]{
  width:8px;height:8px;border-radius:999px;background:var(--border);
  border:none;transition:var(--transition);margin:0 4px;
}
.carousel-indicators .active{width:22px;background:var(--primary)}
.carousel-control-prev,.carousel-control-next{
  width:40px;height:40px;border-radius:50%;background:var(--primary);
  top:50%;transform:translateY(-50%);opacity:1;bottom:auto;margin:0 -60px;
}
.carousel-control-prev:hover,.carousel-control-next:hover{background:var(--primary-dark)}
.carousel-control-prev i,.carousel-control-next i{font-size:14px}
.testi-area{padding-bottom:110px}

/* ===== Guarantee Bar ===== */
.guard-bar{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:60px 0}
.guard-item{text-align:center;padding:24px 12px}
.guard-icon{width:64px;height:64px;margin:0 auto 14px;border-radius:18px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:26px;transition:var(--transition)}
.guard-item:hover .guard-icon{transform:translateY(-4px);background:var(--primary);color:#fff}
.guard-title{font-size:16px;font-weight:600;color:var(--text);margin-bottom:4px}
.guard-desc{font-size:13px;color:var(--text-muted);line-height:1.6}

/* ===== CTA ===== */
.cta-section{
  background:linear-gradient(120deg,#0D343A 0%,#123F46 60%,#0FA3A1 160%);
  padding:80px 0;position:relative;overflow:hidden;
}
.cta-section::before{
  content:'';position:absolute;right:0;top:0;width:40%;height:100%;
  background:url('/assets/images/backpic/back-2.png') no-repeat center/cover;opacity:.15;
}
.cta-box{max-width:720px;margin:0 auto;text-align:center;color:#fff}
.cta-box h2{font-size:clamp(22px,3vw,32px);font-weight:800;color:#fff;margin-bottom:16px}
.cta-box p{font-size:16px;color:rgba(255,255,255,.85);margin-bottom:32px}
.cta-box .btn-accent{padding:14px 48px;font-size:17px;box-shadow:0 8px 24px rgba(255,122,89,.3)}

/* ===== News / CMS ===== */
.news-area{background:var(--light-bg)}
.news-list-item{
  background:#fff;border-radius:14px;padding:22px 24px;box-shadow:var(--shadow-card);
  margin-bottom:16px;transition:var(--transition);border:1px solid transparent;
}
.news-list-item:hover{box-shadow:var(--shadow-hover);transform:translateX(4px);border-color:var(--primary-light)}
.news-list-item .news-meta{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.news-date{font-size:13px;color:var(--text-muted)}
.news-title{font-size:16px;font-weight:600;margin-bottom:6px}
.news-title a{color:var(--text);transition:var(--transition)}
.news-title a:hover{color:var(--primary)}
.news-summary{font-size:14px;color:var(--text-muted);line-height:1.7;margin-bottom:10px}
.read-more{font-size:13px;font-weight:600;color:var(--primary)}
.read-more i{font-size:11px;margin-left:4px;transition:transform .3s}
.read-more:hover i{transform:translateX(3px)}
.news-featured{
  background:#fff;border-radius:16px;padding:20px;box-shadow:var(--shadow-card);height:100%;
}
.news-featured img{border-radius:12px;margin-bottom:16px;width:100%;height:200px;object-fit:cover}
.news-featured h4{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px}
.news-featured p{font-size:14px;color:var(--text-muted)}
.hot-list{padding:0;margin:20px 0 0}
.hot-list li{
  display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px dashed var(--border);
}
.hot-list li:last-child{border-bottom:none}
.hot-num{width:28px;height:28px;border-radius:8px;background:var(--primary-light);color:var(--primary);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.hot-num.top{background:var(--accent);color:#fff}
.hot-list a{font-size:14px;color:var(--text);line-height:1.5}
.hot-list a:hover{color:var(--primary)}
.empty-tip{background:#fff;border-radius:12px;padding:40px;text-align:center;color:var(--text-muted);font-size:15px;border:1px dashed var(--border)}

/* ===== FAQ ===== */
.faq-area{background:#fff;padding:80px 0}
.accordion-item{
  border:none;background:var(--card-bg);border-radius:12px;box-shadow:var(--shadow-card);
  margin-bottom:12px;border:1px solid var(--border);overflow:hidden;
}
.accordion-item:first-child{border-radius:12px}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--text);padding:20px 24px;
  background:transparent;box-shadow:none;transition:var(--transition);border-radius:12px!important;
}
.accordion-button:not(.collapsed){
  background:var(--primary-light);color:var(--primary);
  box-shadow:none;border-left:3px solid var(--primary);
}
.accordion-button::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230FA3A1'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
}
.accordion-body{font-size:14px;color:var(--text-muted);line-height:1.8;padding:8px 24px 22px;border-left:3px solid var(--primary-light)}

/* ===== Footer ===== */
.site-footer{background:var(--dark);color:rgba(255,255,255,.75);padding:70px 0 0}
.footer-brand-wrap{margin-bottom:24px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-logo-text{font-size:19px;font-weight:800;color:#fff}
.footer-logo-text span{color:#4FD1CF}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.65);max-width:260px}
.footer-col h5{color:#fff;font-size:16px;font-weight:600;margin-bottom:18px;position:relative;padding-bottom:10px}
.footer-col h5::after{content:'';position:absolute;bottom:0;left:0;width:28px;height:3px;background:var(--primary);border-radius:2px}
.footer-col ul{padding:0;margin:0}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:rgba(255,255,255,.65);font-size:14px;transition:var(--transition)}
.footer-col ul a:hover{color:#fff;padding-left:6px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);
  font-size:15px;transition:var(--transition);
}
.footer-social a:hover{background:var(--primary);color:#fff;transform:translateY(-3px)}
.footer-copy{
  border-top:1px solid rgba(255,255,255,.08);margin-top:50px;padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-copy a{color:rgba(255,255,255,.5)}
.footer-copy a:hover{color:#fff}

/* ===== Modal ===== */
.modal-content{border-radius:20px;border:none;overflow:hidden;box-shadow:0 20px 60px rgba(13,52,58,.2)}
.modal-header{border:none;padding:20px 24px 0}
.modal-title{font-size:19px;font-weight:700;color:var(--dark)}
.btn-close{filter:none}
.modal-body{padding:18px 24px 26px}
.form-label{font-size:14px;font-weight:600;color:var(--text);margin-bottom:6px}
.form-control{
  border:1.5px solid var(--border);border-radius:10px;padding:10px 16px;
  font-size:14px;transition:var(--transition);
}
.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(15,163,161,.12)}
.form-check-input:checked{background-color:var(--primary);border-color:var(--primary)}
.modal .btn-accent{padding:12px 24px;font-size:15px}

/* ===== Wave divider ===== */
.wave-divider{display:block;width:100%;height:60px;margin-top:-1px}
.wave-divider svg{width:100%;height:100%;display:block}

/* ===== Responsive ===== */
@media (max-width:1199px){
  .carousel-control-prev,.carousel-control-next{margin:0 -20px}
}
@media (max-width:991px){
  .section{padding:60px 0}
  .navbar-toggler{display:inline-block}
  .nav-menu{display:none}
  .nav-actions .nav-search,.nav-actions .hot-tags{display:none}
  .hero{padding:50px 0 50px}
  .hero-content{padding-right:0;margin-bottom:40px}
  .hero-info-card{left:10px;bottom:10px}
  .feat-lg .card-img-wrap{height:240px}
  .feat-sm .card-img-wrap{height:280px}
  .footer-col{margin-bottom:30px}
  .carousel-control-prev,.carousel-control-next{margin:0}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .section-head{margin-bottom:30px}
  .hero{padding:40px 0 40px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-img-wrap img{height:260px}
  .hero-info-card{max-width:220px;padding:10px 14px}
  .hero-trust{gap:16px}
  .trust-item{font-size:13px}
  .feat-lg .card-img-wrap,.feat-sm .card-img-wrap{height:220px}
  .testi-card{padding:28px 20px}
  .cta-section{padding:50px 0}
  .cta-box .btn-accent{width:100%}
  .news-list-item{padding:18px}
  .footer-copy{flex-direction:column;text-align:center}
  .guard-item{padding:16px 8px}
}
@media (max-width:520px){
  .container{padding-left:18px;padding-right:18px}
  .topbar-right .btn-login-top{padding:5px 14px;font-size:13px}
  .logo-text{font-size:17px}
  .hero h1{font-size:26px}
  .hero-info-card{display:none}
  .testi-area{padding-bottom:80px}
}

/* roulang page: category1 */
:root {
  --primary: #0FA3A1;
  --primary-deep: #0B8583;
  --primary-light: #E6F4F5;
  --accent: #FF7A59;
  --accent-deep: #F2603C;
  --dark: #0D343A;
  --bg-light: #F4FAFA;
  --card-bg: #FFFFFF;
  --border: #E1EEF0;
  --text-main: #14333A;
  --text-secondary: #5B767C;
  --rating: #F5A623;
  --radius-card: 16px;
  --radius-img: 14px;
  --radius-input: 10px;
  --radius-modal: 20px;
  --shadow-card: 0 2px 10px rgba(13,52,58,0.06);
  --shadow-hover: 0 14px 28px rgba(13,52,58,0.12);
  --font-main: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-main);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: var(--primary); transition: all .25s ease; }
a:hover { color: var(--primary-deep); }
img { max-width: 100%; height: auto; }
button, input { font-family: inherit; }
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
main { display: block; }

/* ===== 顶部品牌行 ===== */
.top-bar {
  background: var(--bg-light);
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-secondary);
  padding: 8px 0;
}
.top-bar .container { display: flex; justify-content: space-between; align-items: center; }
.top-bar a { color: var(--text-main); }
.top-bar a:hover { color: var(--primary); }
.top-bar-info i { color: var(--primary); }

/* ===== 主导航 ===== */
.main-nav-wrap {
  position: sticky;
  top: 0;
  z-index: 1020;
  background: #fff;
  border-bottom: 1px solid var(--border);
  transition: box-shadow .3s ease;
}
.main-nav-wrap.is-sticky { box-shadow: 0 4px 20px rgba(13,52,58,0.08); }
.main-nav-row { display: flex; align-items: center; min-height: 70px; gap: 24px; }
.brand-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-logo-text { font-size: 22px; font-weight: 800; color: var(--dark); line-height: 1.2; }
.brand-logo-text span { color: var(--primary); }
.nav-menu { display: flex; list-style: none; gap: 6px; margin: 0; padding: 0; }
.nav-menu li a {
  display: inline-block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  border-radius: 999px;
  position: relative;
  transition: all .25s ease;
}
.nav-menu li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width .3s ease;
}
.nav-menu li a:hover { color: var(--primary); }
.nav-menu li a:hover::after { width: 60%; }
.nav-menu li a.active { color: var(--primary); font-weight: 600; }
.nav-menu li a.active::after { width: 60%; }

.nav-actions { display: flex; align-items: center; gap: 16px; }
.nav-search { display: flex; align-items: center; background: var(--bg-light); border: 1px solid var(--border); border-radius: var(--radius-input); overflow: hidden; transition: all .25s ease; }
.nav-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(15,163,161,0.15); }
.nav-search .form-control { border: 0; background: transparent; box-shadow: none; font-size: 14px; padding: 8px 14px; width: 200px; }
.nav-search .form-control:focus { background: transparent; border: 0; box-shadow: none; }
.btn-search { background: transparent; border: 0; color: var(--primary); padding: 0 14px; cursor: pointer; font-size: 14px; transition: color .2s; }
.btn-search:hover { color: var(--primary-deep); }
.hot-tags { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-secondary); }
.hot-tags a { color: var(--text-secondary); padding: 2px 8px; border-radius: 999px; background: var(--primary-light); transition: all .2s; }
.hot-tags a:hover { color: var(--primary); background: #D6ECEC; }
.btn-login-top {
  background: var(--primary);
  color: #fff;
  border: 0;
  border-radius: 999px;
  padding: 8px 22px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all .25s ease;
}
.btn-login-top:hover { background: var(--accent); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(255,122,89,0.3); }

/* ===== 页面Banner ===== */
.guide-banner {
  position: relative;
  background: linear-gradient(135deg, #E6F4F5, #F4FAFA 60%, #ffffff);
  padding: 60px 0 72px;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.guide-banner::before {
  content: '';
  position: absolute;
  right: -60px;
  top: -40px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: rgba(15,163,161,0.08);
}
.guide-banner::after {
  content: '';
  position: absolute;
  left: 30%;
  bottom: -80px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255,122,89,0.06);
}
.breadcrumb-nav { font-size: 13px; color: var(--text-secondary); margin-bottom: 20px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.breadcrumb-nav a { color: var(--text-secondary); }
.breadcrumb-nav a:hover { color: var(--primary); }
.breadcrumb-nav .sep { color: #B8CCD0; }
.guide-banner h1 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--dark);
  margin-bottom: 18px;
}
.guide-banner h1 .highlight { color: var(--accent); }
.guide-banner .lead-text {
  font-size: 16px;
  max-width: 660px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 28px;
}
.banner-points { display: flex; gap: 20px; flex-wrap: wrap; }
.banner-points .point { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-main); background: #fff; padding: 10px 18px; border-radius: 999px; box-shadow: var(--shadow-card); }
.banner-points .point i { color: var(--primary); }

/* ===== 使用指南内容区 ===== */
.guide-section { padding: 80px 0; }
.guide-section:nth-child(even) { background: #fff; }
.guide-grid { display: flex; align-items: center; gap: 48px; }
.guide-grid.left-text .text-col { order: 1; }
.guide-grid.left-text .img-col { order: 2; }
.text-col, .img-col { flex: 1; }
.section-label {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.text-col h2 {
  font-size: clamp(22px, 2.2vw, 28px);
  font-weight: 700;
  color: var(--dark);
  line-height: 1.4;
  margin-bottom: 16px;
  position: relative;
  padding-left: 16px;
}
.text-col h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  background: var(--primary);
  border-radius: 4px;
}
.text-col p { font-size: 15px; color: var(--text-secondary); line-height: 1.85; margin-bottom: 14px; }
.text-col ul { list-style: none; padding: 0; }
.text-col ul li { font-size: 14px; color: var(--text-main); padding: 6px 0; display: flex; align-items: flex-start; gap: 8px; }
.text-col ul li i { color: var(--primary); margin-top: 4px; flex-shrink: 0; }
.img-col .guide-figure { border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-card); position: relative; background: var(--primary-light); }
.img-col .guide-figure img { width: 100%; height: 320px; object-fit: cover; display: block; transition: transform .5s ease; }
.img-col .guide-figure:hover img { transform: scale(1.03); }
.guide-figure .figure-caption {
  position: absolute;
  left: 16px;
  bottom: 16px;
  right: 16px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(4px);
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 13px;
  color: var(--text-main);
  text-align: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

/* ===== 快速步骤 ===== */
.quick-steps { background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 80px 0; }
.quick-steps .section-title { text-align: center; font-size: clamp(20px, 2.2vw, 28px); font-weight: 700; color: var(--dark); margin-bottom: 12px; position: relative; display: inline-block; padding-left: 16px; }
.quick-steps .section-title::before { content: ''; position: absolute; left: 0; top: 4px; bottom: 4px; width: 4px; background: var(--primary); border-radius: 4px; }
.quick-steps .section-sub { text-align: center; color: var(--text-secondary); font-size: 15px; margin-bottom: 48px; }
.steps-row { display: flex; gap: 24px; justify-content: center; flex-wrap: wrap; }
.step-card {
  flex: 1;
  min-width: 220px;
  max-width: 260px;
  background: var(--bg-light);
  border-radius: var(--radius-card);
  padding: 32px 24px;
  position: relative;
  text-align: center;
  transition: all .3s ease;
  border: 1px solid transparent;
}
.step-card:hover { background: #fff; border-color: var(--border); box-shadow: var(--shadow-hover); transform: translateY(-6px); }
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 18px;
  box-shadow: 0 4px 12px rgba(15,163,161,0.3);
}
.step-icon { font-size: 24px; color: var(--primary); margin-bottom: 16px; display: block; }
.step-card h3 { font-size: 17px; font-weight: 600; color: var(--dark); margin-bottom: 10px; }
.step-card p { font-size: 14px; color: var(--text-secondary); margin-bottom: 0; }

/* ===== FAQ区 ===== */
.guide-faq { padding: 80px 0; background: var(--bg-light); }
.guide-faq .section-header { text-align: center; margin-bottom: 44px; }
.guide-faq .section-header h2 { font-size: clamp(22px, 2.2vw, 28px); font-weight: 700; color: var(--dark); position: relative; display: inline-block; padding-left: 16px; }
.guide-faq .section-header h2::before { content: ''; position: absolute; left: 0; top: 5px; bottom: 5px; width: 4px; background: var(--primary); border-radius: 4px; }
.guide-faq .section-header p { color: var(--text-secondary); font-size: 15px; margin-top: 8px; }
.accordion { max-width: 860px; margin: 0 auto; }
.accordion-item {
  border: 0;
  background: #fff;
  border-radius: var(--radius-card) !important;
  box-shadow: var(--shadow-card);
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow .3s ease;
}
.accordion-item:hover { box-shadow: var(--shadow-hover); }
.accordion-button {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  background: #fff;
  padding: 20px 24px;
  border: 0;
  box-shadow: none !important;
  transition: all .25s ease;
}
.accordion-button:hover { color: var(--primary); }
.accordion-button:not(.collapsed) { background: #fff; color: var(--primary); }
.accordion-button::after { background-image: none; font-family: 'Font Awesome 6 Free'; font-weight: 900; content: '\f078'; font-size: 14px; color: var(--primary); transition: transform .3s ease; }
.accordion-button:not(.collapsed)::after { transform: rotate(180deg); }
.accordion-body { padding: 0 24px 22px; font-size: 14px; color: var(--text-secondary); line-height: 1.85; }

/* ===== CTA区 ===== */
.guide-cta {
  background: var(--dark);
  padding: 88px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.guide-cta::before {
  content: '';
  position: absolute;
  top: -60px;
  left: 10%;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(15,163,161,0.15);
}
.guide-cta::after {
  content: '';
  position: absolute;
  bottom: -80px;
  right: 15%;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255,122,89,0.1);
}
.guide-cta .inner { position: relative; z-index: 2; }
.guide-cta h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; color: #fff; margin-bottom: 16px; }
.guide-cta p { font-size: 16px; color: #B8D4D9; margin-bottom: 32px; max-width: 520px; margin-left: auto; margin-right: auto; }
.btn-cta-main {
  background: var(--accent);
  color: #fff;
  border: 0;
  border-radius: 999px;
  padding: 12px 38px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all .3s ease;
  box-shadow: 0 6px 20px rgba(255,122,89,0.35);
}
.btn-cta-main:hover { background: var(--accent-deep); transform: translateY(-2px); color: #fff; box-shadow: 0 10px 28px rgba(255,122,89,0.45); }
.btn-cta-main:active { transform: translateY(0); }
.btn-cta-ghost {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.5);
  border-radius: 999px;
  padding: 10px 32px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all .3s ease;
  margin-left: 14px;
}
.btn-cta-ghost:hover { border-color: #fff; background: rgba(255,255,255,0.1); color: #fff; }

/* ===== 页脚 ===== */
.site-footer { background: var(--dark); color: #B8D4D9; padding: 72px 0 0; }
.site-footer .footer-brand-wrap { margin-bottom: 20px; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.footer-logo-text { font-size: 20px; font-weight: 800; color: #fff; }
.footer-logo-text span { color: #4FD1CF; }
.footer-desc { font-size: 14px; color: #8AAEB5; max-width: 300px; margin-bottom: 18px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  color: #B8D4D9;
  transition: all .3s ease;
}
.footer-social a:hover { background: var(--primary); color: #fff; }
.site-footer h5 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 18px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer ul li { margin-bottom: 10px; font-size: 14px; display: flex; align-items: flex-start; gap: 8px; }
.site-footer ul li i { margin-top: 3px; color: #4FD1CF; }
.site-footer ul a { color: #8AAEB5; font-size: 14px; }
.site-footer ul a:hover { color: #fff; padding-left: 4px; }
.footer-copy {
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 48px;
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: #6E949C;
  flex-wrap: wrap;
  gap: 8px;
}

/* ===== 登录Modal ===== */
.modal-content { border: 0; border-radius: var(--radius-modal); overflow: hidden; box-shadow: 0 20px 60px rgba(13,52,58,0.25); }
.modal-body { padding: 0; }
.modal-login-wrap { display: flex; }
.modal-login-side {
  background: var(--primary);
  width: 160px;
  padding: 40px 20px;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}
.modal-login-side i { font-size: 40px; margin-bottom: 14px; }
.modal-login-side span { font-size: 15px; font-weight: 600; }
.modal-login-form { flex: 1; padding: 36px 32px; }
.modal-login-form h3 { font-size: 24px; font-weight: 700; color: var(--dark); margin-bottom: 6px; }
.modal-login-form .form-sub { font-size: 14px; color: var(--text-secondary); margin-bottom: 24px; }
.modal-login-form .form-label { font-size: 14px; font-weight: 500; color: var(--text-main); }
.modal-login-form .form-control {
  border: 1px solid var(--border);
  border-radius: var(--radius-input);
  padding: 10px 14px;
  font-size: 14px;
  transition: all .25s ease;
}
.modal-login-form .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15,163,161,0.15);
}
.btn-login-submit {
  background: var(--primary);
  color: #fff;
  border: 0;
  border-radius: 999px;
  width: 100%;
  padding: 12px;
  font-weight: 600;
  font-size: 15px;
  transition: all .3s ease;
  cursor: pointer;
}
.btn-login-submit:hover { background: var(--accent); transform: translateY(-2px); }
.modal-login-links { display: flex; justify-content: space-between; font-size: 13px; margin-top: 14px; }
.modal-login-links a { color: var(--text-secondary); }
.modal-login-links a:hover { color: var(--primary); }

/* ===== 响应式 ===== */
@media (max-width: 991.98px) {
  .main-nav-row { flex-wrap: wrap; gap: 12px; padding: 12px 0; }
  .nav-menu { order: 3; width: 100%; overflow-x: auto; padding-bottom: 4px; }
  .nav-menu li a { white-space: nowrap; }
  .nav-actions { margin-left: auto; }
  .guide-grid { flex-direction: column; gap: 32px; }
  .guide-grid.left-text .text-col { order: 2; }
  .guide-grid.left-text .img-col { order: 1; }
  .guide-section { padding: 56px 0; }
  .quick-steps { padding: 56px 0; }
  .guide-faq { padding: 56px 0; }
  .guide-cta { padding: 64px 0; }
}

@media (max-width: 767.98px) {
  body { font-size: 15px; }
  .container { padding-left: 16px; padding-right: 16px; }
  .top-bar { display: none; }
  .main-nav-wrap { position: relative; }
  .brand-logo-text { font-size: 18px; }
  .nav-search .form-control { width: 130px; }
  .btn-login-top { padding: 6px 14px; font-size: 13px; }
  .hot-tags { display: none !important; }
  .guide-banner { padding: 40px 0 48px; }
  .guide-banner h1 { font-size: 26px; }
  .banner-points { gap: 10px; }
  .banner-points .point { font-size: 13px; padding: 8px 14px; }
  .guide-section { padding: 44px 0; }
  .guide-grid { gap: 24px; }
  .img-col .guide-figure img { height: 240px; }
  .quick-steps { padding: 44px 0; }
  .steps-row { gap: 16px; }
  .step-card { min-width: 100%; max-width: 100%; }
  .guide-faq { padding: 44px 0; }
  .accordion-button { font-size: 15px; padding: 16px 18px; }
  .accordion-body { padding: 0 18px 18px; font-size: 14px; }
  .guide-cta { padding: 48px 0; }
  .btn-cta-ghost { margin-left: 0; margin-top: 12px; }
  .footer-copy { flex-direction: column; text-align: center; }
  .modal-login-side { display: none; }
  .modal-login-form { padding: 28px 24px; }
}

@media (max-width: 520px) {
  .nav-menu { gap: 2px; }
  .nav-menu li a { padding: 6px 10px; font-size: 14px; }
  .nav-actions { gap: 8px; }
  .nav-search { display: none !important; }
  .brand-logo-text { font-size: 16px; }
}

/* roulang page: article */
:root {
      --primary: #0FA3A1;
      --primary-dark: #0B8887;
      --primary-light: #E0F4F4;
      --accent: #FF7A59;
      --accent-dark: #E86344;
      --dark: #0D343A;
      --light-bg: #F4FAFA;
      --card-bg: #FFFFFF;
      --border: #E1EEF0;
      --text: #14333A;
      --text-muted: #5B767C;
      --rating: #F5A623;
      --radius: 16px;
      --radius-sm: 10px;
      --shadow: 0 2px 10px rgba(13,52,58,0.06);
      --shadow-hover: 0 14px 28px rgba(13,52,58,0.12);
      --transition: all 0.3s ease;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
      font-size: 16px;
      line-height: 1.8;
      color: var(--text);
      background: var(--light-bg);
      -webkit-font-smoothing: antialiased;
    }

    img {
      max-width: 100%;
      height: auto;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }

    a:hover {
      color: var(--primary);
    }

    .container {
      max-width: 1200px;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* ============ 顶部公告条 ============ */
    .topbar {
      background: var(--dark);
      color: rgba(255, 255, 255, 0.78);
      font-size: 13px;
      padding: 6px 0;
    }

    .topbar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      min-height: 36px;
    }

    .topbar a {
      color: rgba(255, 255, 255, 0.9);
    }

    .topbar a:hover {
      color: #fff;
    }

    /* ============ 主导航 ============ */
    .main-nav {
      position: sticky;
      top: 0;
      z-index: 1030;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border);
      box-shadow: 0 4px 16px rgba(13, 52, 58, 0.04);
    }

    .main-nav-inner {
      display: flex;
      align-items: center;
      min-height: 66px;
      gap: 20px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: var(--primary-light);
    }

    .brand-text {
      font-size: 19px;
      font-weight: 800;
      color: var(--dark);
      letter-spacing: 0.2px;
      white-space: nowrap;
    }

    .brand-text span {
      color: var(--primary);
      font-weight: 700;
    }

    .nav-links {
      display: flex;
      gap: 6px;
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .nav-links li a {
      display: block;
      padding: 8px 16px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text);
      position: relative;
      white-space: nowrap;
    }

    .nav-links li a::after {
      content: "";
      position: absolute;
      bottom: 2px;
      left: 16px;
      right: 16px;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
      transform: scaleX(0);
      transform-origin: center;
      transition: transform 0.3s ease;
    }

    .nav-links li a:hover {
      color: var(--primary);
      background: var(--primary-light);
    }

    .nav-links li a:hover::after,
    .nav-links li a.active::after {
      transform: scaleX(1);
    }

    .nav-links li a.active {
      color: var(--primary);
      background: var(--primary-light);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
      flex-shrink: 0;
    }

    .nav-search {
      position: relative;
      display: flex;
      align-items: center;
    }

    .nav-search .form-control {
      width: 170px;
      height: 36px;
      border-radius: 10px;
      border: 1px solid var(--border);
      background: var(--light-bg);
      font-size: 13px;
      padding: 6px 38px 6px 14px;
      transition: var(--transition);
    }

    .nav-search .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(15, 163, 161, 0.18);
      background: #fff;
    }

    .btn-search {
      position: absolute;
      right: 3px;
      top: 3px;
      bottom: 3px;
      width: 30px;
      border: 0;
      background: transparent;
      color: var(--text-muted);
      border-radius: 8px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: var(--transition);
    }

    .btn-search:hover {
      color: var(--primary);
      background: var(--primary-light);
    }

    .hot-tags {
      display: flex;
      gap: 6px;
      font-size: 12px;
      color: var(--text-muted);
      white-space: nowrap;
    }

    .hot-tags a {
      padding: 2px 8px;
      border-radius: 999px;
      background: var(--light-bg);
      color: var(--text-muted);
      font-size: 12px;
    }

    .hot-tags a:hover {
      background: var(--primary-light);
      color: var(--primary);
    }

    .btn-login-top {
      height: 36px;
      padding: 0 16px;
      border: 1px solid var(--primary);
      border-radius: 999px;
      background: transparent;
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-login-top:hover {
      background: var(--primary);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(15, 163, 161, 0.3);
    }

    .nav-toggle {
      display: none;
      width: 40px;
      height: 40px;
      border: 1px solid var(--border);
      border-radius: 10px;
      background: transparent;
      color: var(--text);
      font-size: 18px;
      cursor: pointer;
      align-items: center;
      justify-content: center;
      transition: var(--transition);
      margin-left: 4px;
    }

    .nav-toggle:hover {
      background: var(--light-bg);
      color: var(--primary);
    }

    /* ============ 文章 Hero ============ */
    .article-hero {
      position: relative;
      overflow: hidden;
      background: linear-gradient(135deg, rgba(13, 52, 58, 0.94), rgba(15, 163, 161, 0.76)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
      color: #fff;
      padding: 52px 0 46px;
      border-bottom: 4px solid var(--primary);
    }

    .article-hero::after {
      content: "";
      position: absolute;
      right: -60px;
      top: -60px;
      width: 220px;
      height: 220px;
      border-radius: 50%;
      border: 3px solid rgba(255, 255, 255, 0.08);
      pointer-events: none;
    }

    .article-hero .breadcrumb {
      margin-bottom: 14px;
      --bs-breadcrumb-divider: '›';
    }

    .article-hero .breadcrumb-item a {
      color: rgba(255, 255, 255, 0.68);
      font-size: 13px;
    }

    .article-hero .breadcrumb-item a:hover {
      color: #fff;
    }

    .article-hero .breadcrumb-item.active {
      color: rgba(255, 255, 255, 0.92);
      font-size: 13px;
    }

    .article-hero .breadcrumb-item + .breadcrumb-item::before {
      color: rgba(255, 255, 255, 0.5);
    }

    .article-title {
      font-size: clamp(26px, 3.6vw, 38px);
      font-weight: 800;
      line-height: 1.35;
      margin: 0 0 14px;
      color: #fff;
      max-width: 780px;
      letter-spacing: 0.2px;
    }

    .article-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px 22px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.78);
    }

    .article-meta span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .article-meta i {
      color: rgba(255, 122, 89, 0.9);
    }

    /* ============ 文章主体 ============ */
    .article-main {
      padding: 48px 0 0;
    }

    .article-layout {
      padding-bottom: 40px;
    }

    .article-content {
      background: #fff;
      border-radius: 20px;
      padding: 42px;
      box-shadow: var(--shadow);
      font-size: 16px;
      line-height: 1.9;
      color: var(--text);
    }

    .article-content h2 {
      font-size: 24px;
      font-weight: 700;
      color: var(--dark);
      margin: 36px 0 16px;
      padding-left: 14px;
      border-left: 4px solid var(--primary);
      line-height: 1.4;
    }

    .article-content h3 {
      font-size: 19px;
      font-weight: 600;
      color: var(--dark);
      margin: 28px 0 12px;
      line-height: 1.5;
    }

    .article-content p {
      margin-bottom: 18px;
    }

    .article-content ul,
    .article-content ol {
      margin: 0 0 20px 20px;
      padding-left: 8px;
    }

    .article-content li {
      margin-bottom: 8px;
    }

    .article-content blockquote {
      margin: 24px 0;
      padding: 16px 24px;
      background: var(--light-bg);
      border-left: 4px solid var(--primary);
      border-radius: 0 14px 14px 0;
      color: var(--text-muted);
      font-size: 15px;
    }

    .article-content blockquote p {
      margin-bottom: 0;
    }

    .article-content img {
      border-radius: 16px;
      margin: 20px 0;
      box-shadow: var(--shadow);
    }

    .article-content figcaption {
      font-size: 13px;
      color: var(--text-muted);
      text-align: center;
      margin-top: -14px;
      margin-bottom: 18px;
    }

    .article-content a {
      color: var(--primary);
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .article-content a:hover {
      color: var(--primary-dark);
    }

    /* 空状态 */
    .article-not-found {
      background: #fff;
      border-radius: 20px;
      padding: 80px 40px;
      box-shadow: var(--shadow);
      text-align: center;
    }

    .article-not-found i {
      font-size: 48px;
      color: var(--primary);
      display: inline-block;
      margin-bottom: 18px;
    }

    .article-not-found h3 {
      font-size: 22px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 10px;
    }

    .article-not-found p {
      color: var(--text-muted);
      font-size: 14px;
      margin-bottom: 24px;
    }

    /* ============ 侧边栏 ============ */
    .article-sidebar .sidebar-card {
      background: #fff;
      border-radius: 16px;
      padding: 26px;
      box-shadow: var(--shadow);
      margin-bottom: 24px;
      transition: var(--transition);
    }

    .sidebar-card:hover {
      box-shadow: var(--shadow-hover);
    }

    .sidebar-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 20px;
      padding-bottom: 12px;
      border-bottom: 2px solid var(--light-bg);
      position: relative;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .sidebar-title::before {
      content: "";
      width: 4px;
      height: 18px;
      border-radius: 4px;
      background: var(--primary);
      display: inline-block;
    }

    .related-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .related-list li {
      margin-bottom: 16px;
    }

    .related-list li a {
      display: flex;
      gap: 12px;
      padding: 10px;
      border-radius: 12px;
      transition: var(--transition);
    }

    .related-list li a:hover {
      background: var(--light-bg);
    }

    .related-thumb {
      width: 76px;
      height: 60px;
      border-radius: 10px;
      overflow: hidden;
      flex-shrink: 0;
      background: var(--light-bg);
    }

    .related-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .related-info {
      display: flex;
      flex-direction: column;
      justify-content: center;
      min-width: 0;
      flex: 1;
    }

    .related-title {
      font-size: 14px;
      font-weight: 600;
      color: var(--text);
      line-height: 1.5;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      margin-bottom: 4px;
    }

    .related-time {
      font-size: 12px;
      color: var(--text-muted);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .tag-cloud a {
      display: inline-block;
      padding: 5px 16px;
      border-radius: 999px;
      background: var(--light-bg);
      color: var(--text);
      font-size: 13px;
      border: 1px solid transparent;
      transition: var(--transition);
    }

    .tag-cloud a:hover {
      background: var(--primary-light);
      color: var(--primary);
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    .category-entry {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 16px;
      border-radius: 14px;
      background: var(--light-bg);
      margin-bottom: 12px;
      transition: var(--transition);
      border: 1px solid transparent;
    }

    .category-entry:hover {
      background: #fff;
      border-color: var(--primary);
      box-shadow: var(--shadow);
      transform: translateY(-2px);
    }

    .entry-icon {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: var(--primary-light);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 18px;
      flex-shrink: 0;
    }

    .entry-info {
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .entry-name {
      font-size: 15px;
      font-weight: 600;
      color: var(--text);
    }

    .entry-desc {
      font-size: 12px;
      color: var(--text-muted);
    }

    .category-entry > .fa-chevron-right {
      font-size: 13px;
      color: var(--text-muted);
      transition: var(--transition);
    }

    .category-entry:hover > .fa-chevron-right {
      color: var(--primary);
      transform: translateX(4px);
    }

    /* ============ 文章分页 ============ */
    .article-pagination-section {
      padding: 0 0 24px;
    }

    .article-pagination {
      display: flex;
      gap: 20px;
      margin-bottom: 20px;
    }

    .page-btn {
      flex: 1;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 20px 24px;
      display: flex;
      flex-direction: column;
      gap: 6px;
      transition: var(--transition);
      box-shadow: var(--shadow);
      min-width: 0;
    }

    .page-btn:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }

    .page-btn-label {
      font-size: 12px;
      color: var(--text-muted);
      letter-spacing: 1px;
    }

    .page-btn-title {
      font-size: 15px;
      font-weight: 600;
      color: var(--text);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .back-to-list {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--text-muted);
      font-size: 14px;
      padding: 8px 20px;
      border-radius: 999px;
      transition: var(--transition);
    }

    .back-to-list:hover {
      color: var(--primary);
      background: var(--primary-light);
    }

    /* ============ CTA 区块 ============ */
    .cta-section {
      position: relative;
      background: linear-gradient(135deg, rgba(13, 52, 58, 0.96), rgba(15, 163, 161, 0.82)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
      padding: 70px 0;
      color: #fff;
      text-align: center;
      margin-top: 32px;
    }

    .cta-inner h2 {
      font-size: clamp(24px, 3vw, 34px);
      font-weight: 800;
      margin-bottom: 12px;
      color: #fff;
    }

    .cta-inner p {
      font-size: 16px;
      color: rgba(255, 255, 255, 0.85);
      margin-bottom: 26px;
      max-width: 520px;
      margin-left: auto;
      margin-right: auto;
    }

    .btn-accent {
      background: var(--accent);
      border: 2px solid var(--accent);
      color: #fff;
      border-radius: 999px;
      padding: 14px 38px;
      font-size: 16px;
      font-weight: 600;
      transition: var(--transition);
      display: inline-block;
    }

    .btn-accent:hover {
      background: var(--accent-dark);
      border-color: var(--accent-dark);
      color: #fff;
      transform: translateY(-3px);
      box-shadow: 0 12px 24px rgba(255, 122, 89, 0.35);
    }

    .btn-accent:active {
      transform: translateY(0);
    }

    /* ============ FAQ 区块 ============ */
    .faq-section {
      padding: 70px 0;
      background: var(--light-bg);
    }

    .section-header {
      text-align: center;
      margin-bottom: 42px;
    }

    .section-header h2 {
      font-size: clamp(22px, 2.4vw, 30px);
      font-weight: 700;
      color: var(--dark);
      margin: 0;
    }

    .section-prefix {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 16px;
      border-radius: 999px;
      margin-bottom: 10px;
      letter-spacing: 1px;
    }

    .faq-accordion {
      max-width: 860px;
      margin: 0 auto;
    }

    .accordion-item {
      background: #fff;
      border: 1px solid var(--border) !important;
      border-radius: 14px !important;
      margin-bottom: 12px;
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: var(--transition);
    }

    .accordion-item:hover {
      box-shadow: var(--shadow-hover);
    }

    .accordion-button {
      font-size: 16px;
      font-weight: 600;
      color: var(--text);
      background: #fff;
      padding: 20px 24px;
      box-shadow: none !important;
      transition: var(--transition);
    }

    .accordion-button:not(.collapsed) {
      background: var(--light-bg);
      color: var(--primary);
    }

    .accordion-button:focus {
      box-shadow: 0 0 0 3px rgba(15, 163, 161, 0.15) !important;
    }

    .accordion-button::after {
      background-size: 14px;
      color: var(--primary);
    }

    .accordion-body {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      background: var(--light-bg);
      border-top: 1px solid var(--border);
      line-height: 1.8;
    }

    /* ============ 页脚 ============ */
    .site-footer {
      background: var(--dark);
      color: rgba(255, 255, 255, 0.75);
      padding: 64px 0 0;
      font-size: 14px;
    }

    .footer-col {
      margin-bottom: 32px;
    }

    .footer-brand-wrap {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .footer-logo {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .footer-logo-text {
      font-size: 19px;
      font-weight: 800;
      color: #fff;
    }

    .footer-logo-text span {
      color: #4FD1CF;
    }

    .footer-desc {
      color: rgba(255, 255, 255, 0.6);
      font-size: 13px;
      max-width: 260px;
      margin: 0;
      line-height: 1.7;
    }

    .footer-social {
      display: flex;
      gap: 10px;
    }

    .footer-social a {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: rgba(255, 255, 255, 0.1);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: rgba(255, 255, 255, 0.8);
      font-size: 15px;
      transition: var(--transition);
    }

    .footer-social a:hover {
      background: var(--primary);
      color: #fff;
      transform: translateY(-2px);
    }

    .site-footer h5 {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 18px;
      position: relative;
      padding-bottom: 8px;
    }

    .site-footer h5::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 24px;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }

    .site-footer ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .site-footer ul li {
      margin-bottom: 8px;
    }

    .site-footer ul li a {
      color: rgba(255, 255, 255, 0.65);
      font-size: 13px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: var(--transition);
    }

    .site-footer ul li a:hover {
      color: #fff;
      transform: translateX(3px);
    }

    .site-footer ul li {
      color: rgba(255, 255, 255, 0.55);
      font-size: 13px;
    }

    .site-footer ul li i {
      color: var(--primary);
      width: 16px;
    }

    .footer-copy {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding: 20px 0;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.5);
    }

    /* ============ 登录 Modal ============ */
    .modal-content {
      border: 0;
      border-radius: 20px;
      box-shadow: 0 24px 60px rgba(13, 52, 58, 0.25);
      overflow: hidden;
      padding: 10px 0 0;
    }

    .modal-header {
      border-bottom: 1px solid var(--border);
      padding: 20px 28px;
    }

    .modal-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--dark);
    }

    .modal-body {
      padding: 28px;
    }

    .modal-body .form-label {
      font-size: 14px;
      font-weight: 600;
      color: var(--text);
    }

    .modal-body .form-control {
      height: 46px;
      border-radius: 10px;
      border: 1px solid var(--border);
      padding: 0 16px;
      font-size: 14px;
      transition: var(--transition);
      background: var(--light-bg);
      color: var(--text);
    }

    .modal-body .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(15, 163, 161, 0.15);
      background: #fff;
    }

    .modal-body .form-check-input:checked {
      background-color: var(--primary);
      border-color: var(--primary);
    }

    .btn-login-submit {
      height: 46px;
      border-radius: 999px;
      background: var(--primary);
      border: 0;
      font-weight: 600;
      font-size: 15px;
      transition: var(--transition);
    }

    .btn-login-submit:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(15, 163, 161, 0.35);
    }

    .modal-links {
      display: flex;
      justify-content: space-between;
      margin-top: 18px;
      font-size: 13px;
    }

    .modal-links a {
      color: var(--text-muted);
    }

    .modal-links a:hover {
      color: var(--primary);
    }

    /* ============ 响应式 ============ */
    @media (max-width: 991px) {
      .nav-toggle {
        display: inline-flex;
      }

      .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 12px 24px 18px;
        box-shadow: 0 20px 30px rgba(13, 52, 58, 0.1);
        border-radius: 0 0 16px 16px;
        border-bottom: 2px solid var(--primary);
        z-index: 1020;
        gap: 2px;
      }

      .nav-links.open {
        display: flex;
      }

      .nav-links li a {
        padding: 12px 16px;
        text-align: center;
      }

      .nav-links li a::after {
        bottom: 4px;
        left: 40px;
        right: 40px;
      }

      .nav-search {
        display: none;
      }

      .article-content {
        padding: 30px;
      }
    }

    @media (max-width: 767px) {
      .article-hero {
        padding: 38px 0 32px;
      }

      .article-content {
        padding: 24px 20px;
        border-radius: 14px;
      }

      .article-main {
        padding-top: 28px;
      }

      .article-pagination {
        flex-direction: column;
        gap: 12px;
      }

      .cta-section {
        padding: 48px 0;
      }

      .footer-copy {
        flex-direction: column;
        text-align: center;
        justify-content: center;
      }

      .nav-actions {
        gap: 8px;
      }

      .hot-tags {
        display: none !important;
      }

      .btn-login-top {
        margin-left: auto;
      }
    }

    @media (max-width: 575px) {
      .brand-text {
        font-size: 16px;
      }

      .article-title {
        font-size: 24px;
      }

      .article-meta {
        gap: 8px 16px;
      }

      .page-btn {
        padding: 16px;
      }
    }

/* roulang page: category2 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #0FA3A1;
            --primary-dark: #0C8785;
            --accent: #FF7A59;
            --accent-dark: #F05A3C;
            --dark: #0D343A;
            --bg-light: #F4FAFA;
            --card-bg: #FFFFFF;
            --border-color: #E1EEF0;
            --text-main: #14333A;
            --text-muted: #5B767C;
            --rating-color: #F5A623;
            --radius-card: 16px;
            --radius-btn: 999px;
            --shadow-card: 0 2px 10px rgba(13, 52, 58, 0.06);
            --shadow-hover: 0 14px 28px rgba(13, 52, 58, 0.12);
            --transition: all 0.25s ease;
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, sans-serif;
        }
        /* ========== 基础重置 ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-light);
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button,
        input {
            font-family: var(--font-family);
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: var(--dark);
            font-weight: 700;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        /* ========== 顶部品牌行 ========== */
        .top-bar {
            background: #EDF7F7;
            border-bottom: 1px solid var(--border-color);
            padding: 6px 0;
            font-size: 13px;
            color: var(--text-muted);
        }
        .top-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .top-bar-left {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .top-bar-left i {
            color: var(--primary);
        }
        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .top-bar-right a {
            color: var(--text-muted);
            font-size: 13px;
        }
        .top-bar-right a:hover {
            color: var(--primary);
        }
        /* ========== 主导航 ========== */
        .main-nav {
            background: #FFFFFF;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 8px rgba(13, 52, 58, 0.04);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }
        .brand-logo svg {
            flex-shrink: 0;
        }
        .brand-logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.2;
            white-space: nowrap;
        }
        .brand-logo-text span {
            color: var(--primary);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .nav-menu li a {
            display: inline-block;
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            border-radius: var(--radius-btn);
            position: relative;
            transition: var(--transition);
        }
        .nav-menu li a::after {
            content: '';
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: transparent;
            transition: var(--transition);
        }
        .nav-menu li a:hover {
            color: var(--primary);
            background: rgba(15, 163, 161, 0.06);
        }
        .nav-menu li a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(15, 163, 161, 0.08);
        }
        .nav-menu li a.active::after {
            background: var(--primary);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: auto;
        }
        .nav-search {
            display: flex;
            align-items: stretch;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            overflow: hidden;
            background: var(--bg-light);
            transition: var(--transition);
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15, 163, 161, 0.12);
        }
        .nav-search .form-control {
            border: none;
            background: transparent;
            font-size: 14px;
            padding: 8px 14px;
            min-width: 180px;
            box-shadow: none;
            color: var(--text-main);
        }
        .nav-search .form-control:focus {
            box-shadow: none;
        }
        .btn-search {
            background: transparent;
            border: none;
            padding: 0 14px;
            color: var(--text-muted);
            cursor: pointer;
            font-size: 14px;
            transition: var(--transition);
        }
        .btn-search:hover {
            color: var(--primary);
        }
        .hot-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
        }
        .hot-tags a {
            color: var(--text-muted);
            padding: 2px 10px;
            background: rgba(15, 163, 161, 0.06);
            border-radius: 999px;
            font-size: 12px;
            transition: var(--transition);
        }
        .hot-tags a:hover {
            color: var(--primary);
            background: rgba(15, 163, 161, 0.12);
        }
        .btn-login-top {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 8px 20px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-login-top:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 14px rgba(15, 163, 161, 0.25);
        }
        @media (max-width: 991.98px) {
            .nav-inner {
                gap: 12px;
            }
            .nav-menu {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                overflow-x: auto;
                padding-bottom: 4px;
            }
            .nav-actions {
                margin-left: auto;
            }
            .hot-tags {
                display: none;
            }
        }
        @media (max-width: 575.98px) {
            .brand-logo-text {
                font-size: 17px;
            }
            .nav-menu li a {
                padding: 6px 12px;
                font-size: 14px;
            }
            .btn-login-top {
                display: none !important;
            }
        }
        /* ========== 页面Banner ========== */
        .page-banner {
            background: linear-gradient(135deg, rgba(13, 52, 58, 0.88), rgba(15, 163, 161, 0.78)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            padding: 72px 0 64px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -40px;
            right: -20px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }
        .page-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            margin-bottom: 18px;
            flex-wrap: wrap;
        }
        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
        }
        .page-banner .breadcrumb a:hover {
            color: #fff;
        }
        .page-banner .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.5);
        }
        .page-banner h1 {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 800;
            margin-bottom: 16px;
            color: #fff;
        }
        .page-banner h1 span {
            color: #FFB8A5;
        }
        .page-banner .banner-desc {
            font-size: 16px;
            line-height: 1.8;
            max-width: 720px;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 0;
        }
        @media (max-width: 767.98px) {
            .page-banner {
                padding: 48px 0 40px;
            }
        }
        /* ========== 通用区块样式 ========== */
        .section-pad {
            padding: 80px 0;
        }
        @media (max-width: 767.98px) {
            .section-pad {
                padding: 48px 0;
            }
        }
        .section-title-wrap {
            margin-bottom: 40px;
        }
        .section-title-wrap .sub-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(15, 163, 161, 0.08);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 10px;
        }
        .section-title-wrap h2 {
            font-size: clamp(20px, 2.2vw, 28px);
            font-weight: 700;
            position: relative;
            padding-left: 16px;
            margin-bottom: 12px;
        }
        .section-title-wrap h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            border-radius: 4px;
            background: var(--primary);
        }
        .section-title-wrap .section-desc {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 680px;
        }
        /* ========== 服务概览卡片 ========== */
        .service-cards {
            margin-top: -28px;
            position: relative;
            z-index: 2;
        }
        .service-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            height: 100%;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            text-align: center;
        }
        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
            border-color: rgba(15, 163, 161, 0.3);
        }
        .service-card .icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 20px;
            background: linear-gradient(135deg, rgba(15, 163, 161, 0.1), rgba(255, 122, 89, 0.08));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }
        .service-card .icon-wrap i {
            font-size: 26px;
            color: var(--primary);
        }
        .service-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }
        /* ========== 服务范围说明（图片+文本） ========== */
        .service-detail-section {
            background: #FFFFFF;
        }
        .service-detail-img {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            height: 100%;
            min-height: 340px;
        }
        .service-detail-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .service-detail-content {
            padding: 16px 0;
        }
        .service-detail-content h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--dark);
        }
        .service-detail-content p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .service-list-check {
            list-style: none;
            padding: 0;
            margin: 0 0 20px 0;
        }
        .service-list-check li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--text-main);
            padding: 8px 0;
            border-bottom: 1px dashed var(--border-color);
        }
        .service-list-check li:last-child {
            border-bottom: none;
        }
        .service-list-check li i {
            color: var(--primary);
            margin-top: 4px;
        }
        /* ========== 服务流程 ========== */
        .service-process {
            background: var(--bg-light);
        }
        .process-timeline {
            position: relative;
            max-width: 860px;
            margin: 0 auto;
        }
        .process-timeline::before {
            content: '';
            position: absolute;
            left: 32px;
            top: 20px;
            bottom: 20px;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary), var(--accent));
            opacity: 0.3;
            border-radius: 2px;
        }
        .process-item {
            display: flex;
            align-items: flex-start;
            gap: 28px;
            padding: 24px 0;
            position: relative;
        }
        .process-num {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), #4FD1CF);
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            box-shadow: 0 8px 20px rgba(15, 163, 161, 0.25);
            z-index: 1;
        }
        .process-content {
            flex: 1;
            background: #fff;
            border-radius: var(--radius-card);
            padding: 24px 30px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .process-content:hover {
            box-shadow: var(--shadow-hover);
        }
        .process-content h4 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .process-content p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        @media (max-width: 575.98px) {
            .process-item {
                gap: 16px;
            }
            .process-num {
                width: 48px;
                height: 48px;
                font-size: 16px;
            }
            .process-content {
                padding: 18px;
            }
        }
        /* ========== 服务数据 ========== */
        .service-stats {
            background: var(--dark);
            color: #fff;
            padding: 64px 0;
        }
        .stat-item {
            text-align: center;
            padding: 24px 16px;
        }
        .stat-item .stat-num {
            font-size: clamp(32px, 4vw, 48px);
            font-weight: 800;
            color: #4FD1CF;
            line-height: 1.2;
            margin-bottom: 8px;
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            letter-spacing: 1px;
        }
        .stat-item .stat-icon {
            font-size: 24px;
            color: var(--accent);
            margin-bottom: 10px;
        }
        /* ========== FAQ手风琴 ========== */
        .faq-section {
            background: #FFFFFF;
        }
        .faq-accordion .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: 12px !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: 0 2px 6px rgba(13, 52, 58, 0.03);
            background: #fff;
        }
        .faq-accordion .accordion-item.active-faq {
            border-left: 3px solid var(--primary);
        }
        .faq-accordion .accordion-button {
            background: #fff;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            padding: 18px 24px;
            border: none;
            box-shadow: none;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: #f8fcfc;
            box-shadow: none;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(15, 163, 161, 0.1);
        }
        .faq-accordion .accordion-body {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            padding: 0 24px 22px;
        }
        .faq-accordion .accordion-button::after {
            background-size: 14px;
            filter: opacity(0.5);
        }
        /* ========== CTA区 ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--dark), #0F4B52);
            padding: 72px 0;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            left: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(15, 163, 161, 0.15);
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -40px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 122, 89, 0.12);
        }
        .cta-section h2 {
            font-size: clamp(22px, 2.6vw, 32px);
            color: #fff;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 32px;
        }
        .btn-cta-primary {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 14px 42px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            position: relative;
            z-index: 1;
        }
        .btn-cta-primary:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(255, 122, 89, 0.35);
        }
        .btn-cta-secondary {
            display: inline-block;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
            border-radius: var(--radius-btn);
            padding: 12px 36px;
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            position: relative;
            z-index: 1;
        }
        .btn-cta-secondary:hover {
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 64px 0 0;
            font-size: 14px;
        }
        .site-footer h5 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 18px;
            font-weight: 600;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 10px;
        }
        .site-footer ul a {
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }
        .site-footer ul a:hover {
            color: #4FD1CF;
            padding-left: 4px;
        }
        .footer-col {
            margin-bottom: 32px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
        }
        .footer-logo-text span {
            color: #4FD1CF;
        }
        .footer-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer-copy {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            margin-top: 16px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        /* ========== 登录模态框 ========== */
        .modal-content {
            border-radius: 20px;
            border: none;
            box-shadow: 0 24px 60px rgba(13, 52, 58, 0.2);
            overflow: hidden;
        }
        .modal-body {
            padding: 36px 40px;
        }
        .modal-body h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .modal-body .modal-sub {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .modal-body .form-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .modal-body .form-control {
            border-radius: 10px;
            padding: 12px 14px;
            border: 1px solid var(--border-color);
            font-size: 14px;
            transition: var(--transition);
        }
        .modal-body .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15, 163, 161, 0.12);
        }
        .modal-body .btn-login-submit {
            width: 100%;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 12px 0;
            font-size: 15px;
            font-weight: 600;
            margin-top: 10px;
            cursor: pointer;
            transition: var(--transition);
        }
        .modal-body .btn-login-submit:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
        }
        .modal-body .form-check-input:checked {
            background-color: var(--primary);
            border-color: var(--primary);
        }
        .modal-body .auth-links {
            display: flex;
            justify-content: space-between;
            font-size: 14px;
            margin-top: 8px;
        }
        .modal-body .auth-links a {
            color: var(--primary);
            font-size: 14px;
        }
        /* ========== 移动端菜单 ========== */
        @media (max-width: 767.98px) {
            .nav-menu {
                display: flex;
                flex-wrap: nowrap;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 6px;
            }
            .nav-menu::-webkit-scrollbar {
                display: none;
            }
            .nav-menu li {
                flex-shrink: 0;
            }
            .nav-menu li a {
                white-space: nowrap;
            }
            .top-bar-left {
                font-size: 12px;
            }
            .top-bar-right {
                gap: 8px;
            }
            .top-bar-right a {
                font-size: 12px;
            }
            .service-card {
                padding: 24px 18px;
            }
            .service-detail-img {
                min-height: 240px;
                margin-bottom: 24px;
            }
        }
        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .nav-search .form-control {
                min-width: 120px;
            }
            .btn-login-top {
                display: none !important;
            }
            .stat-item {
                padding: 16px 8px;
            }
            .modal-body {
                padding: 24px 20px;
            }
        }
        /* ========== 通用修饰类 ========== */
        .bg-white {
            background: #FFFFFF;
        }
        .text-primary-color {
            color: var(--primary) !important;
        }
        .box-shadow-hover {
            transition: var(--transition);
        }
        .box-shadow-hover:hover {
            box-shadow: var(--shadow-hover);
        }
        /* ========== 按钮通用 ========== */
        .btn-outline-primary-sm {
            display: inline-block;
            padding: 8px 22px;
            border: 1.5px solid var(--primary);
            border-radius: var(--radius-btn);
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
            background: transparent;
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-outline-primary-sm:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        /* ========== 响应式断点 ========== */
        @media (min-width: 992px) {
            .col-lg-8 .service-detail-img {
                min-height: 400px;
            }
        }
        @media (max-width: 991.98px) and (min-width: 768px) {
            .service-card {
                padding: 24px 20px;
            }
            .process-content {
                padding: 20px;
            }
        }
        @media (min-width: 1200px) {
            .service-detail-content {
                padding-left: 20px;
            }
        }