/* roulang page: index */
:root {
  --ink-dark: #17191E;
  --ink-deep: #14161A;
  --gold: #B8945C;
  --gold-hover: #C4A26B;
  --green: #254D46;
  --paper: #F7F6F3;
  --card: #FFFFFF;
  --text-dark: #2A2D32;
  --text-gray: #8A8F98;
  --border: #E8E6E1;
  --dark-text: #F2F1ED;
  --dark-sub: rgba(255,255,255,0.55);
  --dark-border: rgba(255,255,255,0.1);
  --radius-card: 12px;
  --radius-btn: 8px;
  --shadow-card: 0 8px 24px rgba(23,25,30,0.06);
  --shadow-hover: 0 16px 40px rgba(23,25,30,0.12);
  --font-serif: "Playfair Display","Noto Serif SC",serif;
  --font-sans: "Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  background:var(--paper);
  color:var(--text-dark);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color .25s ease}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-family:var(--font-serif);font-weight:600;color:var(--text-dark)}
.container{max-width:1200px;padding-left:24px;padding-right:24px}
.section{padding:96px 0}
@media(max-width:992px){.section{padding:64px 0}}
@media(max-width:576px){.section{padding:48px 0}}
.btn{border-radius:var(--radius-btn);padding:14px 28px;font-size:15px;font-weight:600;font-family:var(--font-sans);transition:all .3s cubic-bezier(0.22,1,0.36,1);letter-spacing:.02em}
.btn:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
.btn-gold{background:var(--gold);color:var(--ink-dark);border:1px solid var(--gold)}
.btn-gold:hover{background:var(--gold-hover);border-color:var(--gold-hover);color:var(--ink-dark);transform:translateY(-1px);box-shadow:0 8px 24px rgba(184,148,92,0.3)}
.btn-outline-gold{background:transparent;color:var(--gold);border:1px solid var(--gold)}
.btn-outline-gold:hover{background:rgba(184,148,92,0.08);transform:translateY(-1px);color:var(--gold)}
.btn-light-solid{background:#fff;color:var(--ink-dark);border:1px solid rgba(255,255,255,0.4)}
.btn-light-solid:hover{background:rgba(255,255,255,0.85);color:var(--ink-dark);transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,0.5)}
.btn-outline-light:hover{background:rgba(255,255,255,0.1);color:#fff;transform:translateY(-1px)}

/* Header */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,0.85);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(232,230,225,0.7);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{background:rgba(255,255,255,0.95);box-shadow:0 4px 20px rgba(23,25,30,0.08)}
.site-header .navbar{padding:0;min-height:72px}
.brand-logo{display:flex;align-items:center;gap:12px;font-family:var(--font-sans);font-weight:600;color:var(--text-dark);letter-spacing:.08em;font-size:15px}
.brand-logo:hover{color:var(--gold)}
.brand-logo .brand-lg{
  width:32px;height:32px;background:var(--ink-dark);border-radius:4px;
  display:flex;align-items:center;justify-content:center;
  color:var(--gold);font-family:var(--font-serif);font-weight:700;font-size:14px;
  transition:transform .3s ease;
}
.brand-logo:hover .brand-lg{transform:rotate(-6deg)}
.navbar-nav{gap:8px;margin-left:auto}
.navbar-nav .nav-item{display:flex;align-items:center}
.navbar-nav .nav-link{
  font-size:14px;font-weight:500;color:#55585E;
  padding:8px 12px;position:relative;
  transition:color .3s;
  font-family:var(--font-sans);
}
.navbar-nav .nav-link::after{
  content:'';position:absolute;left:12px;right:12px;bottom:0;
  height:2px;background:var(--gold);width:0;
  transition:width .35s cubic-bezier(0.22,1,0.36,1);
}
.navbar-nav .nav-link:hover{color:var(--ink-dark)}
.navbar-nav .nav-link:hover::after{width:calc(100% - 24px)}
.navbar-nav .nav-link.active{color:var(--gold)}
.navbar-nav .nav-link.active::after{width:calc(100% - 24px)}
.navbar-nav .nav-sep{width:1px;height:18px;background:#E8E6E1;margin:0 10px;flex:none}
.btn-nav{
  font-size:14px;font-weight:600;color:var(--gold);
  padding:8px 0 8px 24px;margin-left:16px;
  border-left:1px solid #E8E6E1;
  transition:color .3s;
  font-family:var(--font-sans);
}
.btn-nav:hover{color:var(--gold-hover)}
.navbar-toggler{border:none;padding:8px;width:44px;height:44px;}
.navbar-toggler:focus{box-shadow:none;outline:2px solid rgba(184,148,92,0.4)}
.navbar-toggler .tgl-line{display:block;width:24px;height:1px;background:var(--text-dark);margin:5px auto;transition:all .3s}
.navbar-toggler[aria-expanded="true"] .tgl-line:nth-child(1){transform:translateY(6px) rotate(45deg)}
.navbar-toggler[aria-expanded="true"] .tgl-line:nth-child(2){opacity:0}
.navbar-toggler[aria-expanded="true"] .tgl-line:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media(max-width:992px){
  .navbar-collapse{
    background: var(--ink-dark);
    padding: 40px 32px;
    position: fixed;
    top: 0;left: 0;right: 0;bottom: 0;
    min-height: 100vh;
    z-index: 2000;
    display: flex !important;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all .4s cubic-bezier(0.22,1,0.36,1);
  }
  .navbar-collapse.show{
    opacity: 1;
    visibility: visible;
  }
  .navbar-collapse .navbar-nav{
    margin-left: 0;
    flex-direction: column;
    gap: 20px;
    width: 100%;
  }
  .navbar-collapse .nav-link{
    color: #F2F1ED;
    font-family: var(--font-serif);
    font-size: 28px;
    padding: 8px 0;
    letter-spacing: .02em;
  }
  .navbar-collapse .nav-link::after{display:none}
  .navbar-collapse .nav-link:hover{color: var(--gold)}
  .navbar-collapse .nav-link.active{color: var(--gold)}
  .navbar-collapse .nav-sep{display:none}
  .btn-nav{
    border-left:none;
    border-top:1px solid rgba(255,255,255,0.15);
    margin-left:0;
    margin-top:32px;
    padding:16px 0 0;
    color: var(--gold);
    width:100%;
    font-size:16px;
  }
  .navbar-toggler{z-index:2100;position:relative}
}

/* Hero */
.hero{
  position:relative;
  min-height:88vh;
  display:flex;align-items:center;
  background:var(--ink-dark);
  overflow:hidden;
  padding:160px 0 120px;
}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.28;z-index:1;
}
.hero-bg::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(23,25,30,.92) 30%,rgba(23,25,30,.55) 80%);
}
.hero-watermark{
  position:absolute;right:-2%;top:50%;
  transform:translateY(-50%);
  font-family:var(--font-serif);
  font-weight:700;
  font-size:11vw;
  color:rgba(184,148,92,.07);
  z-index:1;
  line-height:1;
  pointer-events:none;
  letter-spacing:.05em;
}
.hero-content{position:relative;z-index:3;max-width:780px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(184,148,92,0.15);
  border:1px solid rgba(184,148,92,0.35);
  color:var(--gold);
  font-size:12px;font-weight:500;
  letter-spacing:.12em;
  padding:6px 18px;border-radius:100px;
  margin-bottom:32px;
  font-family:var(--font-sans);
}
.hero-title{
  font-family:var(--font-serif);
  font-size:clamp(2.8rem,6vw,5.2rem);
  font-weight:600;
  line-height:1.08;
  letter-spacing:-.01em;
  color:#F2F1ED;
  margin-bottom:28px;
}
.hero-title .gold-text{color:var(--gold);position:relative}
.hero-subtitle{
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,0.7);
  max-width:560px;
  margin-bottom:44px;
  font-weight:300;
}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.scroll-indicator{
  position:absolute;right:48px;bottom:40px;
  display:flex;flex-direction:column;align-items:center;gap:10px;
  z-index:3;
}
.scroll-indicator .scroll-line{
  width:1px;height:64px;
  background:linear-gradient(to bottom,rgba(184,148,92,0.5),rgba(184,148,92,0));
  position:relative;overflow:hidden;
}
.scroll-indicator .scroll-dot{
  width:5px;height:5px;border-radius:50%;
  background:var(--gold);
  position:absolute;top:0;left:-2px;
  animation:scrollDot 2s infinite;
}
@keyframes scrollDot{
  0%{top:0;opacity:1}
  100%{top:64px;opacity:0}
}
.scroll-indicator .scroll-text{
  font-size:12px;color:rgba(255,255,255,0.4);
  letter-spacing:.2em;writing-mode:vertical-lr;font-family:var(--font-sans);
}
@media(max-width:768px){.scroll-indicator{display:none}}
@media(max-width:576px){
  .hero{padding:140px 0 80px;min-height:90vh}
  .hero-title{font-size:clamp(2.2rem,8vw,3rem)}
  .hero-subtitle{font-size:15px}
  .hero-ctas{flex-direction:column;align-items:flex-start}
  .hero-ctas .btn{width:100%;text-align:center}
}

/* Section headers */
.section-head{margin-bottom:56px;text-align:center;max-width:760px;margin-left:auto;margin-right:auto}
.section-head .eyebrow{
  font-size:12px;font-weight:600;letter-spacing:.18em;
  text-transform:uppercase;color:var(--gold);
  margin-bottom:16px;display:block;
  font-family:var(--font-sans);
}
.section-head h2{
  font-family:var(--font-serif);
  font-size:clamp(2rem,4vw,2.6rem);
  line-height:1.25;
  margin-bottom:16px;
}
.section-head p{color:var(--text-gray);font-size:15px;line-height:1.8;font-weight:300}

/* Brand Intro */
.brand-intro{background:var(--paper);position:relative;overflow:hidden}
.brand-intro .section-label{
  font-size:12px;letter-spacing:.16em;color:var(--gold);
  font-weight:600;margin-bottom:16px;font-family:var(--font-sans);
}
.brand-intro h2{
  font-family:var(--font-serif);
  font-size:clamp(1.8rem,3.5vw,2.4rem);
  line-height:1.3;margin-bottom:28px;
}
.brand-intro p{color:var(--text-gray);font-size:15px;line-height:1.85;margin-bottom:20px;font-weight:300}
.brand-intro .signature{
  margin-top:36px;padding-left:20px;position:relative;
  font-family:var(--font-serif);font-style:normal;font-size:15px;color:var(--text-dark);
}
.brand-intro .signature::before{
  content:'';position:absolute;left:0;top:0;bottom:0;
  width:2px;background:var(--gold);
}
.brand-intro .signature .role{display:block;color:var(--text-gray);font-size:13px;margin-top:6px;font-family:var(--font-sans)}
.brand-image-wrap{position:relative}
.brand-image-wrap::before{
  content:'';position:absolute;top:-14px;right:-14px;
  width:calc(100% - 20px);height:calc(100% - 20px);
  border:1px solid var(--gold);border-radius:var(--radius-card);
  z-index:0;opacity:.5;
}
.brand-image-wrap img{
  position:relative;z-index:1;
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  width:100%;height:auto;object-fit:cover;
  transition:transform .6s cubic-bezier(0.22,1,0.36,1);
}
.brand-image-wrap:hover img{transform:scale(1.015)}
@media(max-width:768px){
  .brand-intro .row gap-4{row-gap:48px}
}

/* Services List */
.services{background:var(--card);}
.service-list{border-top:1px solid var(--border);max-width:960px;margin:0 auto}
.service-row{
  display:grid;
  grid-template-columns:72px 1fr 48px;
  align-items:center;
  gap:24px;
  padding:40px 24px;
  border-bottom:1px solid var(--border);
  transition:all .45s cubic-bezier(0.22,1,0.36,1);
  cursor:default;
  position:relative;
}
.service-row::before{
  content:'';position:absolute;left:0;top:0;bottom:0;
  width:0;background:var(--gold);
  transition:width .35s cubic-bezier(0.22,1,0.36,1);
}
.service-row:hover{background:rgba(248,246,242,0.7);transform:translateX(8px)}
.service-row:hover::before{width:2px}
.service-num{
  font-family:var(--font-serif);
  font-size:36px;font-weight:600;
  color:#C9C5BB;
  transition:color .35s;
}
.service-row:hover .service-num{color:var(--gold)}
.service-info h3{font-family:var(--font-serif);font-size:20px;margin-bottom:8px}
.service-info p{font-size:14px;color:var(--text-gray);font-weight:300;line-height:1.7;max-width:560px}
.service-arrow{
  width:40px;height:40px;
  border:1px solid var(--border);border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--text-gray);font-size:16px;
  transition:all .35s;
}
.service-row:hover .service-arrow{
  background:var(--gold);border-color:var(--gold);color:var(--ink-dark);
  transform:translateX(4px);
}
@media(max-width:768px){
  .service-row{grid-template-columns:48px 1fr 32px;gap:16px;padding:28px 12px}
  .service-num{font-size:28px}
  .service-info h3{font-size:18px}
  .service-arrow{width:32px;height:32px;font-size:14px}
}

/* Stats */
.stats-section{
  background:var(--ink-dark);
  padding:80px 0;
  position:relative;
  overflow:hidden;
}
.stats-section::before{
  content:'';position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.12;
}
.stats-section .container{position:relative;z-index:1}
.stat-item{
  text-align:center;
  padding:32px 16px;
  border-right:1px solid rgba(255,255,255,0.1);
}
.stat-item:last-child{border-right:none}
.stat-num{
  font-family:var(--font-serif);
  font-size:clamp(48px,5vw,56px);
  font-weight:600;
  color:var(--gold);
  display:block;
  line-height:1.2;
}
.stat-label{
  font-size:13px;color:rgba(255,255,255,0.65);
  letter-spacing:.12em;margin-top:12px;display:block;
  font-family:var(--font-sans);
}
@media(max-width:768px){
  .stats-section{padding:56px 0}
  .stat-item{border-bottom:1px solid rgba(255,255,255,0.08);border-right:none;padding:24px 8px}
  .stat-item:nth-child(odd){border-right:1px solid rgba(255,255,255,0.08)}
}

/* Cases */
.cases{background:var(--paper)}
.case-head{
  display:flex;justify-content:space-between;align-items:flex-end;
  margin-bottom:48px;flex-wrap:wrap;gap:16px;
}
.case-head h2{font-family:var(--font-serif);font-size:clamp(1.8rem,3.5vw,2.4rem);margin:0}
.case-head a{color:var(--text-gray);font-size:14px;font-weight:500;border-bottom:1px solid var(--border);padding-bottom:4px;transition:color .3s,border-color .3s}
.case-head a:hover{color:var(--gold);border-color:var(--gold)}
.case-card{
  background:var(--card);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:all .4s cubic-bezier(0.22,1,0.36,1);
  height:100%;
  border:none;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.case-img{
  position:relative;overflow:hidden;
  aspect-ratio:4/3;
  background:linear-gradient(145deg,#E8E6E1,#D8D5CE);
}
.case-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(0.22,1,0.36,1)}
.case-card:hover .case-img img{transform:scale(1.03)}
.case-img::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(to bottom,transparent 60%,rgba(23,25,30,0.2));
  opacity:0;transition:opacity .4s;
}
.case-card:hover .case-img::after{opacity:1}
.case-info{
  padding:20px 24px 24px;
  display:flex;justify-content:space-between;align-items:center;
}
.case-info h3{font-family:var(--font-serif);font-size:16px;margin:0}
.case-info span{font-size:12px;color:var(--text-gray);font-weight:300;letter-spacing:.08em}
.case-arrow{
  width:36px;height:36px;border-radius:50%;
  background:var(--gold);color:var(--ink-dark);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;
  position:absolute;right:16px;bottom:16px;
  opacity:0;transform:translateY(8px);
  transition:all .4s;
  z-index:2;
}
.case-card:hover .case-arrow{opacity:1;transform:translateY(0)}
.case-grid .col-lg-6:nth-child(2){
  transform:translateY(40px);
}
@media(max-width:992px){.case-grid .col-lg-6:nth-child(2){transform:none}}
@media(max-width:768px){
  .case-head{flex-direction:column;align-items:flex-start}
  .case-info{padding:16px 20px 20px}
}

/* Solution */
.solution{background:var(--card)}
.solution-steps{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:0;position:relative;
}
.solution-steps::before{
  content:'';position:absolute;top:36px;left:8%;right:8%;
  border-top:1px dashed rgba(184,148,92,0.4);
  z-index:1;
}
.step-item{
  position:relative;text-align:center;padding:0 24px;
  z-index:2;
}
.step-mark{
  width:72px;height:72px;margin:0 auto 24px;
  border-radius:50%;
  background:var(--card);
  border:1px solid var(--gold);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);
  font-size:20px;color:var(--gold);
  position:relative;
  transition:all .4s;
  box-shadow:0 0 0 6px rgba(184,148,92,0.08);
}
.step-item:hover .step-mark{
  background:var(--gold);color:var(--ink-dark);transform:scale(1.05);
}
.step-item h3{font-family:var(--font-serif);font-size:18px;margin-bottom:10px}
.step-item p{font-size:13px;color:var(--text-gray);line-height:1.7;font-weight:300;max-width:220px;margin:0 auto}
@media(max-width:992px){
  .solution-steps{
    grid-template-columns:1fr;
    gap:32px;
    padding-left:40px;
    position:relative;
  }
  .solution-steps::before{
    content:'';position:absolute;top:0;bottom:0;left:20px;
    border:none;border-left:1px dashed rgba(184,148,92,0.4);
    width:0;
  }
  .step-item{text-align:left;padding:0 0 0 20px}
  .step-mark{width:56px;height:56px;margin:0 0 16px;font-size:16px}
  .step-item p{max-width:none}
}

/* CMS News */
.news-section{background:var(--paper)}
.news-section .section-head{
  display:flex;justify-content:space-between;align-items:flex-end;
  margin-bottom:48px;
}
.news-section .section-head h2{font-size:clamp(1.8rem,3.5vw,2.4rem);margin:0}
.news-list{max-width:920px;margin:0 auto}
.news-item{
  display:grid;
  grid-template-columns:100px 1fr 48px;
  gap:24px;
  align-items:center;
  padding:32px 20px;
  border-bottom:1px solid var(--border);
  transition:background .4s,transform .4s;
  position:relative;
  border-radius:8px;
}
.news-item::before{
  content:'';position:absolute;left:0;top:16px;bottom:16px;
  width:2px;background:var(--gold);
  transform:scaleY(0);
  transition:transform .4s cubic-bezier(0.22,1,0.36,1);
  transform-origin:center;
}
.news-item:hover{background:rgba(247,246,243,0.8)}
.news-item:hover::before{transform:scaleY(1)}
.news-date{
  display:flex;flex-direction:column;align-items:center;
  border-right:1px solid var(--border);
  padding-right:24px;
}
.news-date .day{
  font-family:var(--font-serif);
  font-size:36px;font-weight:600;
  color:var(--gold);line-height:1;
}
.news-date .month{font-size:13px;color:var(--text-gray);margin-top:6px;font-family:var(--font-sans)}
.news-body .tag{
  display:inline-block;
  font-size:11px;letter-spacing:.06em;
  padding:4px 12px;border-radius:100px;
  background:rgba(37,77,70,0.1);
  color:var(--green);
  margin-bottom:10px;font-weight:600;
  font-family:var(--font-sans);
}
.news-body h3{
  font-family:var(--font-sans);
  font-size:16px;font-weight:600;
  color:var(--text-dark);
  margin-bottom:6px;
  transition:color .3s;
}
.news-item:hover .news-body h3{color:var(--gold)}
.news-body p{
  font-size:13px;color:var(--text-gray);
  font-weight:300;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.news-arrow{
  width:36px;height:36px;border:1px solid var(--border);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--text-gray);font-size:13px;
  transition:all .35s;
  justify-self:end;
}
.news-item:hover .news-arrow{
  background:var(--gold);border-color:var(--gold);color:var(--ink-dark);
  transform:translateX(4px);
}
.news-empty{
  height:160px;
  border:1px dashed #D8D5CE;
  border-radius:var(--radius-card);
  display:flex;flex-direction:column;
  align-items:center;justify-content:center;
  gap:12px;
  color:var(--text-gray);
}
.news-empty .empty-icon{font-size:32px;color:#D0CCC4}
.news-empty p{font-size:14px;font-weight:300;margin:0}
@media(max-width:768px){
  .news-item{grid-template-columns:68px 1fr 32px;gap:16px;padding:24px 12px}
  .news-date .day{font-size:28px}
  .news-body p{display:none}
  .news-arrow{width:30px;height:30px}
}

/* FAQ */
.faq-section{background:var(--card)}
.faq-aside h2{font-family:var(--font-serif);font-size:clamp(1.8rem,3.5vw,2.4rem);margin-bottom:20px}
.faq-aside p{color:var(--text-gray);font-size:14px;line-height:1.8;margin-bottom:32px;font-weight:300}
.faq-aside a{color:var(--gold);font-weight:500;border-bottom:1px solid rgba(184,148,92,0.4);padding-bottom:4px;font-size:14px}
.faq-aside a:hover{color:var(--gold-hover);border-color:var(--gold-hover)}
.custom-accordion .accordion-item{
  border:none;
  border-bottom:1px solid var(--border);
  background:transparent;
}
.custom-accordion .accordion-item:first-child{border-top:1px solid var(--border)}
.custom-accordion .accordion-button{
  background:transparent;
  box-shadow:none;
  font-family:var(--font-sans);
  font-size:15px;font-weight:600;
  color:var(--text-dark);
  padding:24px 40px 24px 0;
  position:relative;
  border:none;
  transition:color .3s;
}
.custom-accordion .accordion-button:not(.collapsed){color:var(--gold)}
.custom-accordion .accordion-button:hover{color:var(--gold)}
.custom-accordion .accordion-button:focus{box-shadow:none;outline:none}
.custom-accordion .acc-plus{
  position:absolute;right:0;top:50%;
  transform:translateY(-50%);
  width:28px;height:28px;
  display:flex;align-items:center;justify-content:center;
  transition:transform .4s cubic-bezier(0.22,1,0.36,1);
}
.custom-accordion .acc-plus::before,.custom-accordion .acc-plus::after{
  content:'';position:absolute;background:var(--gold);
  width:14px;height:1.5px;
  transition:all .3s;
}
.custom-accordion .acc-plus::after{transform:rotate(90deg)}
.custom-accordion .accordion-button:not(.collapsed) .acc-plus{transform:translateY(-50%) rotate(45deg)}
.custom-accordion .accordion-body{
  font-size:14px;color:var(--text-gray);
  line-height:1.75;font-weight:300;
  padding:0 40px 24px 0;
  font-family:var(--font-sans);
}

/* CTA */
.cta-section{
  background:var(--ink-dark);
  padding:96px 0;
  position:relative;
  overflow:hidden;
}
.cta-section::before{
  content:'';position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  opacity:.15;
}
.cta-section::after{
  content:'PG';position:absolute;right:-3%;bottom:-20%;
  font-family:var(--font-serif);
  font-size:16vw;font-weight:700;
  color:rgba(184,148,92,.05);
  pointer-events:none;line-height:1;
}
.cta-inner{max-width:720px;margin:0 auto;text-align:center;position:relative;z-index:2}
.cta-inner h3{
  font-family:var(--font-serif);
  font-size:clamp(1.8rem,3.5vw,2.4rem);
  color:#F2F1ED;margin-bottom:20px;
}
.cta-inner p{font-size:14px;color:rgba(255,255,255,0.55);margin-bottom:40px;font-weight:300}
.cta-btns{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
@media(max-width:576px){
  .cta-section{padding:64px 0}
  .cta-btns{flex-direction:column;align-items:center}
  .cta-btns .btn{width:100%;max-width:280px;text-align:center}
}

/* Footer */
.site-footer{
  background:var(--ink-deep);
  padding:64px 0 0;
  color:rgba(255,255,255,0.65);
  font-size:14px;
  font-weight:300;
  position:relative;
}
.site-footer::before{
  content:'';position:absolute;top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(to right,transparent,var(--gold),transparent);
}
.footer-main{padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,0.06)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.footer-brand .brand-lg{
  width:32px;height:32px;background:var(--gold);border-radius:4px;
  display:flex;align-items:center;justify-content:center;
  color:var(--ink-dark);font-family:var(--font-serif);font-weight:700;font-size:14px;
}
.footer-brand span:last-child{color:#F2F1ED;font-weight:600;font-size:15px;letter-spacing:.06em;font-family:var(--font-sans)}
.footer-desc{font-size:13px;line-height:1.8;margin-bottom:24px;max-width:300px}
.footer-col h4{
  font-family:var(--font-sans);
  font-size:14px;font-weight:600;
  color:#F2F1ED;
  margin-bottom:20px;
  letter-spacing:.08em;
}
.footer-col ul li{margin-bottom:12px}
.footer-col ul a{font-size:13px;color:rgba(255,255,255,0.55);position:relative;padding-left:0;transition:color .3s,padding-left .3s}
.footer-col ul a:hover{color:var(--gold);padding-left:6px}
.footer-col ul a::before{
  content:'';
}
.footer-col .contact-item{
  display:flex;align-items:center;gap:12px;
  font-size:13px;color:rgba(255,255,255,0.55);
  margin-bottom:14px;
}
.footer-col .contact-item i{color:var(--gold);font-style:normal}
.qr-placeholder{
  width:112px;height:112px;border-radius:8px;
  border:1px solid rgba(255,255,255,0.15);
  background:rgba(255,255,255,0.03);
  display:flex;align-items:center;justify-content:center;
  font-size:11px;color:rgba(255,255,255,0.35);
  font-family:var(--font-sans);
}
.footer-bottom{
  padding:24px 0;
  display:flex;justify-content:space-between;align-items:center;
  flex-wrap:wrap;gap:8px;
  font-size:12px;color:rgba(255,255,255,0.35);
}
.footer-bottom .sep{width:1px;height:12px;background:rgba(255,255,255,0.15);display:inline-block;margin:0 12px;vertical-align:middle}
@media(max-width:768px){
  .site-footer{padding-top:48px}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* Reveal Animation */
.reveal{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .6s cubic-bezier(0.22,1,0.36,1),transform .6s cubic-bezier(0.22,1,0.36,1);
}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-delay-1{transition-delay:.08s}
.reveal-delay-2{transition-delay:.16s}
.reveal-delay-3{transition-delay:.24s}
.reveal-delay-4{transition-delay:.32s}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
/* ========== Design Tokens ========== */
:root {
  --dark: #17191E;
  --dark-elev: #14161A;
  --dark-border: rgba(255,255,255,0.1);
  --gold: #B8945C;
  --gold-hover: #C4A26B;
  --gold-soft: rgba(184,148,92,0.12);
  --green: #254D46;
  --green-soft: rgba(37,77,70,0.08);
  --paper: #F7F6F3;
  --card: #FFFFFF;
  --text: #2A2D32;
  --muted: #8A8F98;
  --border: #E8E6E1;
  --dark-text: #F2F1ED;
  --dark-muted: rgba(255,255,255,0.55);
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 8px 24px rgba(23,25,30,0.06);
  --shadow-hover: 0 16px 40px rgba(23,25,30,0.12);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font-serif: "Noto Serif SC", "Playfair Display", "PingFang SC", "Microsoft YaHei", serif;
  --font-sans: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-display: "Playfair Display", "Noto Serif SC", serif;
}
/* ========== Reset & Base ========== */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; border: 0; }
a { color: var(--text); text-decoration: none; transition: color .3s var(--ease), background .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease); }
a:hover { color: var(--gold); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-serif); color: var(--text); margin: 0 0 16px; font-weight: 600; line-height: 1.25; }
p { margin: 0 0 16px; }
button { font-family: var(--font-sans); cursor: pointer; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}
/* ========== Container ========== */
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
/* ========== Section Spacing ========== */
.section-block { padding: 96px 0; }
@media (max-width: 768px) { .section-block { padding: 64px 0; } }
@media (max-width: 576px) { .section-block { padding: 48px 0; } }
/* ========== Header / Navigation ========== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(23,25,30,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background .4s var(--ease), box-shadow .4s var(--ease);
}
.site-header.scrolled { background: rgba(255,255,255,0.88); box-shadow: 0 4px 24px rgba(23,25,30,0.08); }
.site-header.scrolled .brand-logo { color: var(--text); }
.site-header.scrolled .nav-link { color: #55585E; }
.site-header.scrolled .nav-link:hover { color: var(--dark); }
.site-header.scrolled .nav-sep { background: var(--border); }
.site-header.scrolled .btn-nav { color: var(--gold); }
.navbar { padding: 0; min-height: 72px; }
.navbar .container { align-items: center; flex-wrap: nowrap; }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-sans); font-size: 14px; font-weight: 600; letter-spacing: .1em; color: var(--dark-text); white-space: nowrap; }
.brand-logo:hover { color: var(--gold); }
.brand-lg {
  width: 32px; height: 32px; flex-shrink: 0;
  background: var(--dark); border: 1px solid rgba(184,148,92,0.5);
  color: var(--gold); font-family: var(--font-display); font-size: 13px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
  letter-spacing: 0; border-radius: 6px;
}
.site-header.scrolled .brand-lg { background: var(--dark); }
.navbar-collapse { display: flex; align-items: center; justify-content: flex-end; gap: 0; }
.navbar-nav { display: flex; align-items: center; gap: 0; margin: 0; padding: 0; list-style: none; }
.nav-item { position: relative; }
.nav-link {
  font-family: var(--font-sans); font-size: 14px; color: var(--dark-muted);
  padding: 34px 0 30px !important; margin: 0 14px; font-weight: 500;
  border: none; background: transparent; position: relative;
  transition: color .3s var(--ease);
}
.nav-link:hover { color: var(--gold) !important; }
.nav-link.active { color: var(--gold) !important; }
.nav-link.active::after {
  content: ''; position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
  width: 18px; height: 2px; background: var(--gold); border-radius: 2px;
}
.nav-sep { width: 1px; height: 16px; background: rgba(255,255,255,0.18); margin: 0 6px; }
.site-header.scrolled .nav-sep { background: var(--border); }
.btn-nav {
  font-size: 14px; font-weight: 600; color: var(--gold);
  padding: 8px 0; margin-left: 28px; white-space: nowrap;
  border-bottom: 1px solid rgba(184,148,92,0.4);
}
.btn-nav:hover { color: var(--gold-hover); border-color: var(--gold-hover); }
.navbar-toggler { border: none; background: transparent; padding: 10px; display: flex; flex-direction: column; gap: 5px; }
.navbar-toggler:focus { box-shadow: none; outline: 2px solid var(--gold); outline-offset: 2px; }
.navbar-toggler .tgl-line { width: 24px; height: 1px; background: var(--gold); display: block; transition: transform .3s var(--ease), opacity .3s; }
.navbar-toggler[aria-expanded="true"] .tgl-line:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.navbar-toggler[aria-expanded="true"] .tgl-line:nth-child(2) { opacity: 0; }
.navbar-toggler[aria-expanded="true"] .tgl-line:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
@media (max-width: 992px) {
  .navbar .container { flex-wrap: wrap; }
  .navbar-collapse {
    position: fixed; inset: 0; z-index: 999;
    background: rgba(23,25,30,0.98);
    flex-direction: column; align-items: flex-start; justify-content: center;
    padding: 48px 40px; display: flex; opacity: 0; pointer-events: none;
    transition: opacity .4s var(--ease);
  }
  .navbar-collapse.show { opacity: 1; pointer-events: auto; }
  .navbar-nav { flex-direction: column; align-items: flex-start; width: 100%; }
  .nav-item { width: 100%; }
  .nav-link { color: var(--dark-text) !important; font-size: 20px; font-family: var(--font-serif); padding: 14px 0 !important; margin: 0; border-bottom: 1px solid rgba(255,255,255,0.08); }
  .nav-link.active::after { display: none; }
  .nav-sep { display: none; }
  .btn-nav { margin: 28px 0 0; font-size: 16px; color: var(--gold); }
  .site-header.scrolled .nav-link { color: var(--dark-text) !important; }
}
@media (max-width: 576px) {
  .navbar-collapse { padding: 40px 28px; }
}
/* ========== Breadcrumb ========== */
.breadcrumb-wrap {
  padding: 112px 0 36px;
  background: linear-gradient(135deg, rgba(23,25,30,0.97), rgba(23,25,30,0.88)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
}
.breadcrumb-custom { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 13px; color: var(--dark-muted); margin: 0; padding: 0; list-style: none; }
.breadcrumb-custom li { display: flex; align-items: center; gap: 8px; }
.breadcrumb-custom li + li::before { content: '/'; color: rgba(255,255,255,0.3); }
.breadcrumb-custom a { color: rgba(255,255,255,0.7); }
.breadcrumb-custom a:hover { color: var(--gold); }
.breadcrumb-custom .current { color: var(--gold); font-weight: 500; }
/* ========== Article Main ========== */
.article-main { padding: 56px 0 72px; background: var(--paper); }
.article-inner { max-width: 780px; margin: 0 auto; padding: 0; }
.article-head { margin-bottom: 40px; }
.article-category-badge {
  display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: .06em;
  color: var(--green); background: var(--green-soft);
  padding: 5px 14px; border-radius: 100px; margin-bottom: 20px;
  text-transform: uppercase;
}
.article-title {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  line-height: 1.25; color: var(--dark); margin-bottom: 24px;
  font-weight: 600;
}
.article-meta {
  display: flex; align-items: center; flex-wrap: wrap; gap: 16px;
  padding: 20px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  font-size: 13px; color: var(--muted);
}
.article-meta .meta-item { display: inline-flex; align-items: center; gap: 6px; }
.article-meta .meta-sep { width: 1px; height: 12px; background: var(--border); }
.meta-icons { margin-left: auto; display: flex; gap: 10px; }
.meta-icons a { width: 32px; height: 32px; border: 1px solid var(--border); border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 12px; color: var(--muted); }
.meta-icons a:hover { border-color: var(--gold); color: var(--gold); }
/* Article Content */
.article-content { padding: 48px 0 32px; }
.article-content p {
  font-size: 17px; line-height: 1.8; margin-bottom: 24px; color: var(--text);
}
.article-content h2 {
  font-family: var(--font-serif); font-size: 24px; line-height: 1.4;
  margin: 40px 0 20px; color: var(--dark); font-weight: 600;
  padding-bottom: 12px; border-bottom: 1px solid var(--border);
}
.article-content h3 { font-family: var(--font-serif); font-size: 20px; margin: 32px 0 16px; color: var(--dark); }
.article-content ul, .article-content ol { margin: 0 0 24px; padding-left: 24px; font-size: 17px; line-height: 1.8; }
.article-content li { margin-bottom: 8px; }
.article-content blockquote {
  border-left: 4px solid var(--gold);
  background: #F9F7F3;
  padding: 24px 28px; margin: 32px 0; border-radius: 0 12px 12px 0;
  font-family: var(--font-serif); font-size: 16px; color: #55585E;
  font-style: normal; line-height: 1.7;
}
.article-content blockquote p:last-child { margin-bottom: 0; }
.article-content img { border-radius: 12px; margin: 32px auto; width: 100%; box-shadow: var(--shadow-card); }
.article-content a { color: var(--gold); border-bottom: 1px solid rgba(184,148,92,0.4); }
.article-content a:hover { color: var(--gold-hover); border-color: var(--gold-hover); }
.article-content code { background: #F2F0EB; padding: 2px 8px; border-radius: 4px; font-size: 14px; color: #2A2D32; }
.article-content table { width: 100%; border-collapse: collapse; margin: 32px 0; }
.article-content table th, .article-content table td { border: 1px solid var(--border); padding: 12px 16px; font-size: 15px; text-align: left; }
.article-content table th { background: #F9F7F3; font-weight: 600; }
/* Tags */
.article-tags { padding: 16px 0 0; display: flex; flex-wrap: wrap; gap: 10px; }
.tag-item {
  display: inline-block; font-size: 12px; color: var(--muted);
  background: #F0EEE9; border-radius: 100px; padding: 6px 16px;
  transition: background .3s var(--ease), color .3s var(--ease);
}
.tag-item:hover { background: var(--gold); color: var(--dark); }
/* Empty State */
.article-empty {
  max-width: 780px; margin: 0 auto; padding: 80px 40px; text-align: center;
  border: 1px dashed #D8D5CE; border-radius: var(--radius); background: #FBFAF8;
}
.article-empty .empty-icon { font-size: 48px; color: #C9C5BC; margin-bottom: 16px; }
.article-empty h2 { font-size: 22px; color: var(--text); margin-bottom: 12px; }
.article-empty p { color: var(--muted); font-size: 14px; margin-bottom: 24px; }
.btn-back-home {
  display: inline-block; padding: 10px 24px; border: 1px solid var(--gold);
  color: var(--gold); border-radius: var(--radius-sm); font-size: 14px; font-weight: 500;
}
.btn-back-home:hover { background: var(--gold-soft); color: var(--gold-hover); }
/* Post Pager */
.post-pager {
  max-width: 780px; margin: 0 auto; padding: 16px 0 0;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; gap: 24px;
}
.pager-link { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; color: var(--muted); padding: 12px 0; line-height: 1.4; }
.pager-link .pager-icon { font-size: 16px; color: var(--gold); flex-shrink: 0; transition: transform .3s var(--ease); }
.pager-link .pager-text { display: flex; flex-direction: column; gap: 2px; }
.pager-link small { font-size: 11px; color: #B5B2AB; letter-spacing: .04em; }
.pager-link:hover { color: var(--gold); }
.pager-link:hover .pager-icon { transform: translateX(4px); }
.pager-prev:hover .pager-icon { transform: translateX(-4px); }
@media (max-width: 576px) {
  .post-pager { flex-direction: column; gap: 0; }
}
/* Related Section */
.related-section { padding: 72px 0 96px; background: var(--card); }
.related-head { margin-bottom: 48px; display: flex; align-items: flex-end; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.related-head h2 { font-size: 28px; margin: 0; }
.related-head .related-link { font-size: 14px; color: var(--gold); border-bottom: 1px solid rgba(184,148,92,0.4); padding-bottom: 2px; }
.related-card-group { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-card);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
}
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(184,148,92,0.4); }
.related-card .card-img { aspect-ratio: 4/3; overflow: hidden; position: relative; background: #EAE8E2; }
.related-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.related-card:hover .card-img img { transform: scale(1.05); }
.related-card .card-body { padding: 20px 24px 24px; }
.related-card .card-date { font-size: 12px; color: var(--muted); font-family: var(--font-display); letter-spacing: .04em; margin-bottom: 8px; display: block; }
.related-card .card-title { font-size: 16px; font-weight: 600; color: var(--dark); line-height: 1.5; margin: 0; font-family: var(--font-sans); }
.related-card:hover .card-title { color: var(--gold); }
@media (max-width: 768px) {
  .related-card-group { grid-template-columns: 1fr; gap: 20px; }
}
/* CTA Section */
.cta-section {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--dark) 0%, #1D2026 100%);
  padding: 96px 0; text-align: center;
}
.cta-section::before {
  content: 'PG'; position: absolute; right: -40px; bottom: -80px;
  font-family: var(--font-display); font-size: 240px; font-weight: 700;
  color: rgba(184,148,92,0.05); pointer-events: none; line-height: 1;
}
.cta-inner { max-width: 720px; margin: 0 auto; position: relative; z-index: 2; }
.cta-inner h3 { font-size: clamp(1.6rem, 3vw, 2.2rem); color: var(--dark-text); margin-bottom: 16px; }
.cta-inner p { font-size: 14px; color: var(--dark-muted); margin-bottom: 32px; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: 600; padding: 14px 28px; border-radius: var(--radius-sm);
  transition: background .3s var(--ease), color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  border: 1px solid transparent; text-decoration: none; line-height: 1.4;
}
.btn-white { background: #FFFFFF; color: var(--dark); }
.btn-white:hover { background: rgba(255,255,255,0.85); color: var(--dark); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(0,0,0,0.25); }
.btn-outline-gold { border-color: var(--gold); color: var(--gold); background: transparent; }
.btn-outline-gold:hover { background: rgba(184,148,92,0.08); color: var(--gold-hover); border-color: var(--gold-hover); transform: translateY(-2px); }
/* ========== Footer ========== */
.site-footer {
  background: #14161A;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 72px 0 32px; color: rgba(255,255,255,0.65);
}
.footer-main { display: flex; gap: 48px; flex-wrap: wrap; margin-bottom: 48px; }
.footer-brand { display: inline-flex; align-items: center; gap: 10px; font-size: 16px; font-weight: 600; color: var(--dark-text); margin-bottom: 16px; letter-spacing: .06em; }
.footer-desc { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.55); margin: 0; }
.footer-col h4 { font-family: var(--font-sans); font-size: 14px; font-weight: 600; color: var(--dark-text); margin-bottom: 20px; letter-spacing: .04em; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 14px; color: rgba(255,255,255,0.55); }
.footer-col ul a:hover { color: var(--gold); }
.contact-item { font-size: 14px; color: rgba(255,255,255,0.55); margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.contact-item i { font-style: normal; font-size: 10px; color: var(--gold); }
.qr-placeholder {
  width: 120px; height: 120px; border: 1px solid rgba(255,255,255,0.18);
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
  font-size: 13px; color: rgba(255,255,255,0.35); background: rgba(255,255,255,0.04);
}
.footer-bottom {
  padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 12px; color: rgba(255,255,255,0.35);
}
.footer-bottom .sep { display: inline-block; width: 1px; height: 12px; background: rgba(255,255,255,0.25); margin: 0 4px; }
@media (max-width: 992px) {
  .footer-main { flex-direction: column; gap: 32px; }
}
/* ========== Scroll Reveal ========== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: .08s; }
.reveal-delay-2 { transition-delay: .16s; }
.reveal-delay-3 { transition-delay: .24s; }
/* ========== Utilities & Bootstrap Fixes ========== */
.btn-primary, .btn-secondary, .btn-success, .btn-danger, .btn-warning, .btn-info { background-image: none; box-shadow: none; }
.navbar-toggler { border: none; }
.navbar-toggler-icon { background-image: none !important; }
.form-control:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(184,148,92,0.15); }
/* Responsive Fine-Tune */
@media (max-width: 1024px) {
  .related-card-group { grid-template-columns: repeat(3, 1fr); gap: 16px; }
}
@media (max-width: 768px) {
  .breadcrumb-wrap { padding: 96px 0 28px; }
  .article-main { padding: 40px 0 56px; }
  .related-section { padding: 56px 0 72px; }
  .related-card-group { grid-template-columns: 1fr; }
  .cta-section { padding: 64px 0; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* roulang page: category1 */
/* ========= 设计变量 ========= */
    :root {
      --ink: #17191E;
      --gold: #B8945C;
      --gold-light: #C4A26B;
      --gold-soft: rgba(184,148,92,0.12);
      --green: #254D46;
      --paper: #F7F6F3;
      --card: #FFFFFF;
      --graphite: #2A2D32;
      --mist: #8A8F98;
      --line: #E8E6E1;
      --white: #F2F1ED;
      --white-55: rgba(255,255,255,0.55);
      --white-12: rgba(255,255,255,0.12);
      --radius: 12px;
      --radius-sm: 8px;
      --shadow: 0 8px 24px rgba(23,25,30,0.06);
      --shadow-lg: 0 16px 40px rgba(23,25,30,0.12);
      --font-serif: 'Playfair Display', 'Noto Serif SC', 'PingFang SC', serif;
      --font-sans: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
      --header-h: 72px;
    }

    /* ========= 基础 Reset ========= */
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font-sans);
      background: var(--paper);
      color: var(--graphite);
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { text-decoration: none; color: inherit; transition: color .3s, border-color .3s, background .3s, box-shadow .3s, transform .3s; }
    ul, ol { list-style: none; padding: 0; margin: 0; }
    button, input, select, textarea { font-family: inherit; }
    h1, h2, h3, h4, h5, h6 { font-family: var(--font-serif); color: var(--ink); font-weight: 600; line-height: 1.3; margin: 0 0 16px; }
    p { margin: 0 0 16px; }
    .container { max-width: 1200px; }
    .section { padding: 96px 0; }
    .bg-paper { background: var(--paper); }
    .bg-card { background: var(--card); }

    /* ========= 导航 Header ========= */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255,255,255,0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--line);
    }
    .site-header .navbar {
      min-height: var(--header-h);
      padding: 0;
      position: relative;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--ink);
      font-weight: 600;
      flex-shrink: 0;
    }
    .brand-logo:hover { color: var(--ink); }
    .brand-lg {
      width: 32px; height: 32px;
      background: var(--ink);
      color: var(--gold);
      display: flex;
      align-items: center;
      justify-content: center;
      font-family: var(--font-serif);
      font-size: 13px;
      font-weight: 700;
      border-radius: 4px;
      flex-shrink: 0;
    }
    .brand-logo > span:last-child {
      font-size: 14px;
      letter-spacing: 0.1em;
      white-space: nowrap;
    }
    .navbar-nav { gap: 0; align-items: center; }
    .navbar-nav .nav-link {
      padding: 0 18px;
      color: #55585E;
      font-size: 14px;
      font-weight: 500;
      position: relative;
      line-height: 1;
    }
    .navbar-nav .nav-link::after {
      content: '';
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: -22px;
      height: 2px;
      background: var(--gold);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform .3s ease;
    }
    .navbar-nav .nav-link:hover { color: var(--ink); }
    .navbar-nav .nav-link:hover::after,
    .navbar-nav .nav-link.active::after { transform: scaleX(1); }
    .navbar-nav .nav-link.active { color: var(--ink); font-weight: 600; }
    .nav-sep {
      width: 1px;
      height: 20px;
      background: var(--line);
      flex-shrink: 0;
    }
    .btn-nav {
      color: var(--gold);
      font-size: 14px;
      font-weight: 600;
      margin-left: 20px;
      border: 1px solid var(--gold);
      padding: 8px 20px;
      border-radius: var(--radius-sm);
      transition: all .3s;
      white-space: nowrap;
    }
    .btn-nav:hover {
      background: var(--gold-soft);
      color: var(--gold-light);
      border-color: var(--gold-light);
    }
    .navbar-toggler {
      border: none;
      padding: 8px;
      width: 40px;
      height: 40px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      gap: 6px;
      background: transparent;
      z-index: 1050;
      position: relative;
      border-radius: 0;
    }
    .navbar-toggler:focus { box-shadow: none; outline: 2px solid var(--gold); }
    .tgl-line {
      width: 20px;
      height: 1px;
      background: var(--ink);
      display: block;
      margin: 0 auto;
      transition: background .3s;
    }
    .navbar-toggler[aria-expanded="true"] .tgl-line { background: var(--white); }

    /* ========= 分类 Hero 横幅 ========= */
    .category-hero {
      position: relative;
      background:
        linear-gradient(135deg, rgba(23,25,30,0.88) 0%, rgba(23,25,30,0.94) 60%),
        url('/assets/images/backpic/back-1.png') center/cover no-repeat;
      color: var(--white);
      padding: 120px 0 120px;
      overflow: hidden;
    }
    .category-hero::before {
      content: 'PG';
      position: absolute;
      right: -40px;
      bottom: -80px;
      font-family: var(--font-serif);
      font-size: 14vw;
      color: rgba(184,148,92,0.05);
      line-height: 1;
      pointer-events: none;
      user-select: none;
    }
    .category-hero .container { position: relative; z-index: 1; }
    .hero-breadcrumb {
      font-size: 13px;
      color: var(--white-55);
      margin-bottom: 36px;
      letter-spacing: 0.02em;
    }
    .hero-breadcrumb a { color: var(--white-55); }
    .hero-breadcrumb a:hover { color: var(--gold); }
    .hero-breadcrumb .sep { margin: 0 10px; color: var(--white-55); }
    .hero-breadcrumb .current { color: var(--gold); }
    .category-hero h1 {
      font-family: var(--font-serif);
      font-size: clamp(2.4rem, 5vw, 3.4rem);
      font-weight: 600;
      line-height: 1.15;
      margin-bottom: 24px;
      color: var(--white);
    }
    .category-hero h1 .h1-brand {
      display: block;
      font-family: var(--font-sans);
      font-size: 0.24em;
      font-weight: 600;
      letter-spacing: 0.35em;
      color: var(--gold);
      margin-bottom: 14px;
      text-transform: uppercase;
    }
    .category-hero .hero-sub {
      font-size: 14px;
      color: var(--white-55);
      max-width: 560px;
      line-height: 1.8;
      margin-bottom: 0;
    }

    /* ========= 品牌介绍区 ========= */
    .brand-intro .intro-text h2 {
      font-size: 2rem;
      font-weight: 600;
      color: var(--ink);
      margin-bottom: 28px;
      position: relative;
      padding-bottom: 22px;
    }
    .brand-intro .intro-text h2::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 48px;
      height: 2px;
      background: var(--gold);
    }
    .brand-intro .intro-text p {
      color: #55585E;
      font-size: 16px;
      line-height: 1.85;
      margin-bottom: 20px;
    }
    .brand-intro .intro-text p:last-child { margin-bottom: 0; }
    .intro-image {
      position: relative;
      height: 100%;
      min-height: 340px;
    }
    .intro-image::before {
      content: '';
      position: absolute;
      top: -18px;
      right: -18px;
      width: 100%;
      height: 100%;
      border: 1px solid rgba(184,148,92,0.5);
      border-radius: var(--radius);
      z-index: 0;
      transition: all .3s ease;
    }
    .intro-image:hover::before { top: -10px; right: -10px; }
    .intro-image img {
      position: relative;
      z-index: 1;
      border-radius: var(--radius);
      width: 100%;
      height: 100%;
      object-fit: cover;
      box-shadow: var(--shadow);
      min-height: 340px;
    }

    /* ========= 品牌理念编号列表 ========= */
    .philosophy-list {
      border-top: 1px solid var(--line);
      margin-top: 48px;
    }
    .philosophy-item {
      display: grid;
      grid-template-columns: 80px 1fr 2fr 40px;
      gap: 32px;
      align-items: center;
      padding: 36px 24px;
      border-bottom: 1px solid var(--line);
      transition: background .3s ease, transform .3s ease;
    }
    .philosophy-item:hover {
      background: rgba(248,246,242,0.7);
      transform: translateX(8px);
    }
    .philosophy-item .num {
      font-family: var(--font-serif);
      font-size: 36px;
      font-weight: 600;
      color: var(--gold);
      line-height: 1;
    }
    .philosophy-item h3 {
      font-family: var(--font-serif);
      font-size: 20px;
      font-weight: 600;
      color: var(--ink);
      margin: 0;
    }
    .philosophy-item p {
      font-size: 14px;
      color: var(--mist);
      margin: 0;
      line-height: 1.75;
    }
    .philosophy-item .arrow {
      font-size: 24px;
      color: var(--gold);
      text-align: right;
      transition: transform .3s ease;
      line-height: 1;
    }
    .philosophy-item:hover .arrow { transform: translateX(6px); }

    /* ========= 数据统计带 ========= */
    .stats-band {
      background: var(--ink);
      padding: 64px 0;
      position: relative;
      overflow: hidden;
    }
    .stats-band::after {
      content: '';
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 1px;
      height: 100%;
      background: rgba(255,255,255,0.04);
    }
    .stats-band .stat {
      text-align: center;
      padding: 16px 0;
    }
    .stats-band .stat .count-wrap {
      display: flex;
      align-items: baseline;
      justify-content: center;
      gap: 2px;
    }
    .stats-band .stat .count {
      font-family: var(--font-serif);
      font-size: 52px;
      font-weight: 600;
      color: var(--gold);
      line-height: 1.2;
    }
    .stats-band .stat .suffix {
      font-family: var(--font-serif);
      font-size: 32px;
      font-weight: 600;
      color: var(--gold);
    }
    .stats-band .stat .label {
      font-size: 13px;
      color: var(--white-55);
      display: block;
      margin-top: 10px;
      letter-spacing: 0.04em;
    }
    .stats-band .col-divider {
      border-left: 1px solid var(--white-12);
    }

    /* ========= 品牌关键特征 ========= */
    .feature-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
      margin-bottom: 72px;
    }
    .feature-row:last-child { margin-bottom: 0; }
    .feature-row.reverse .feature-img { order: 2; }
    .feature-row.reverse .feature-text { order: 1; }
    .feature-tag {
      display: inline-block;
      font-family: var(--font-serif);
      font-size: 14px;
      color: var(--gold);
      border: 1px solid rgba(184,148,92,0.4);
      border-radius: 100px;
      padding: 4px 16px;
      margin-bottom: 16px;
      letter-spacing: 0.08em;
    }
    .feature-text h3 {
      font-family: var(--font-serif);
      font-size: 1.5rem;
      font-weight: 600;
      color: var(--ink);
      margin-bottom: 12px;
    }
    .feature-text p {
      font-size: 15px;
      color: #55585E;
      line-height: 1.85;
      margin-bottom: 0;
    }
    .feature-img {
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
    }
    .feature-img img {
      width: 100%;
      height: 360px;
      object-fit: cover;
      transition: transform .4s ease;
    }
    .feature-img:hover img { transform: scale(1.03); }

    /* ========= 引用块 ========= */
    .quote-block blockquote {
      border-left: 4px solid var(--gold);
      background: rgba(248,246,242,0.9);
      padding: 36px 48px;
      max-width: 820px;
      margin: 0 auto;
      border-radius: 0 var(--radius) var(--radius) 0;
    }
    .quote-block blockquote p {
      font-family: var(--font-serif);
      font-size: 20px;
      color: var(--ink);
      line-height: 1.8;
      margin-bottom: 12px;
    }
    .quote-block blockquote cite {
      font-style: normal;
      font-size: 13px;
      color: var(--gold);
      letter-spacing: 0.08em;
    }

    /* ========= CTA 区 ========= */
    .cta-section {
      background: var(--ink);
      color: var(--white);
      text-align: center;
      padding: 88px 0;
      position: relative;
      overflow: hidden;
    }
    .cta-section::before {
      content: '';
      position: absolute;
      top: -140px;
      right: -140px;
      width: 320px;
      height: 320px;
      border-radius: 50%;
      border: 1px solid rgba(184,148,92,0.15);
    }
    .cta-section .container { position: relative; z-index: 1; }
    .cta-section h3 {
      font-family: var(--font-serif);
      font-size: 28px;
      font-weight: 600;
      color: var(--white);
      margin-bottom: 16px;
    }
    .cta-section p {
      font-size: 14px;
      color: var(--white-55);
      max-width: 560px;
      margin: 0 auto 36px;
      line-height: 1.8;
    }
    .btn-primary {
      background: var(--gold);
      border-color: var(--gold);
      color: var(--ink);
      font-weight: 600;
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      transition: all .3s;
    }
    .btn-primary:hover,
    .btn-primary:focus {
      background: var(--gold-light);
      border-color: var(--gold-light);
      color: var(--ink);
      transform: translateY(-1px);
      box-shadow: 0 8px 24px rgba(184,148,92,0.35);
    }
    .btn-primary:focus-visible,
    .btn-outline:focus-visible,
    .btn-nav:focus-visible {
      outline: 2px solid var(--gold);
      outline-offset: 2px;
    }
    .btn-outline {
      border: 1px solid rgba(255,255,255,0.4);
      color: var(--white);
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 500;
      transition: all .3s;
      background: transparent;
    }
    .btn-outline:hover {
      background: rgba(255,255,255,0.1);
      color: var(--white);
      border-color: rgba(255,255,255,0.6);
    }
    .cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

    /* ========= 页脚 ========= */
    .site-footer {
      background: #14161A;
      color: rgba(255,255,255,0.65);
      padding: 64px 0 0;
      font-size: 14px;
    }
    .site-footer .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
    }
    .site-footer .footer-brand span:last-child {
      color: var(--white);
      font-size: 14px;
      letter-spacing: 0.1em;
    }
    .footer-desc {
      font-size: 14px;
      line-height: 1.8;
      color: rgba(255,255,255,0.55);
      max-width: 320px;
      margin-bottom: 0;
    }
    .footer-col h4 {
      color: var(--white);
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 16px;
      font-family: var(--font-sans);
    }
    .footer-col ul li { margin-bottom: 10px; }
    .footer-col ul a {
      color: rgba(255,255,255,0.55);
      font-size: 14px;
      transition: color .3s;
    }
    .footer-col ul a:hover { color: var(--gold); }
    .contact-item {
      display: flex;
      gap: 8px;
      align-items: center;
      font-size: 14px;
      color: rgba(255,255,255,0.55);
      margin-bottom: 10px;
    }
    .contact-item i {
      color: var(--gold);
      font-style: normal;
      font-size: 10px;
    }
    .qr-placeholder {
      width: 120px;
      height: 120px;
      border: 1px dashed rgba(255,255,255,0.3);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      color: rgba(255,255,255,0.4);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.08);
      padding: 20px 0;
      margin-top: 48px;
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: rgba(255,255,255,0.35);
      flex-wrap: wrap;
      gap: 8px;
    }
    .footer-bottom .sep {
      display: inline-block;
      width: 1px;
      height: 12px;
      background: rgba(255,255,255,0.15);
      margin: 0 12px;
      vertical-align: middle;
    }

    /* ========= 滚动入场动效 ========= */
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity .6s cubic-bezier(0.22,1,0.36,1), transform .6s cubic-bezier(0.22,1,0.36,1);
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }
    .reveal-delay-1 { transition-delay: .08s; }
    .reveal-delay-2 { transition-delay: .16s; }
    .reveal-delay-3 { transition-delay: .24s; }

    /* ========= 响应式断点 ========= */
    @media (max-width: 1199.98px) {
      .section { padding: 80px 0; }
      .philosophy-item { grid-template-columns: 60px 1fr 1.5fr 32px; gap: 20px; }
      .stats-band .stat .count { font-size: 44px; }
    }

    @media (max-width: 991.98px) {
      .section { padding: 64px 0; }
      .category-hero { padding: 96px 0 90px; }
      .navbar-collapse {
        position: fixed;
        top: 0; left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(23,25,30,0.98);
        z-index: 1040;
        padding: 96px 48px 40px;
        overflow-y: auto;
        transition: opacity .3s ease;
      }
      .navbar-collapse:not(.show) { display: none !important; }
      .navbar-collapse.show { display: flex !important; flex-direction: column; align-items: flex-start; }
      .navbar-nav { flex-direction: column !important; width: 100%; align-items: flex-start; }
      .navbar-nav .nav-item { width: 100%; }
      .navbar-nav .nav-link {
        color: var(--white);
        font-family: var(--font-serif);
        font-size: 24px;
        padding: 16px 0;
      }
      .navbar-nav .nav-link::after { display: none; }
      .nav-sep { width: 100%; height: 1px; margin: 8px 0; background: rgba(255,255,255,0.1); }
      .btn-nav {
        margin: 24px 0 0;
        align-self: flex-start;
        color: var(--gold);
        border-color: var(--gold);
        background: transparent;
      }
      .btn-nav:hover { background: rgba(184,148,92,0.15); }
      .brand-intro .intro-text { margin-bottom: 48px; }
      .feature-row { grid-template-columns: 1fr; gap: 40px; }
      .feature-row.reverse .feature-img { order: 0; }
      .feature-row.reverse .feature-text { order: 0; }
      .feature-img img { height: 300px; }
      .philosophy-item { grid-template-columns: 48px 1fr; grid-template-areas: "num title" ". desc" ". arrow"; gap: 8px 20px; padding: 28px 16px; }
      .philosophy-item .num { grid-area: num; }
      .philosophy-item h3 { grid-area: title; }
      .philosophy-item p { grid-area: desc; }
      .philosophy-item .arrow { grid-area: arrow; text-align: left; }
      .stats-band .col-divider { border-left: none; }
      .stats-band .stat { padding: 12px 0; }
    }

    @media (max-width: 767.98px) {
      .section { padding: 48px 0; }
      .category-hero { padding: 72px 0 72px; }
      .category-hero h1 .h1-brand { font-size: 0.3em; }
      .brand-intro .intro-text h2 { font-size: 1.5rem; }
      .stats-band .stat .count { font-size: 38px; }
      .stats-band .stat .suffix { font-size: 26px; }
      .quote-block blockquote { padding: 28px 24px; }
      .quote-block blockquote p { font-size: 17px; }
      .cta-section { padding: 64px 0; }
      .cta-section h3 { font-size: 24px; }
      .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
    }

    @media (max-width: 575.98px) {
      .nav-sep { margin: 4px 0; }
      .philosophy-item { grid-template-columns: 1fr; grid-template-areas: "num" "title" "desc" "arrow"; }
      .feature-img img { height: 240px; }
      .intro-image { min-height: 240px; }
      .intro-image img { min-height: 240px; }
      .cta-buttons .btn { width: 100%; }
      .cta-buttons { flex-direction: column; gap: 12px; }
      .footer-bottom .sep { display: none; }
    }

    /* ========= 无障碍偏好 ========= */
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
      }
      .reveal { opacity: 1; transform: none; }
    }

/* roulang page: category2 */
:root {
  --dark: #17191E;
  --gold: #B8945C;
  --gold-hover: #C4A26B;
  --green: #254D46;
  --paper: #F7F6F3;
  --white: #FFFFFF;
  --graphite: #2A2D32;
  --mist: #8A8F98;
  --line: #E8E6E1;
  --dark-text: #F2F1ED;
  --dark-sub: rgba(255,255,255,0.55);
  --dark-line: rgba(255,255,255,0.1);
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 8px 24px rgba(23,25,30,0.06);
  --shadow-hover: 0 16px 40px rgba(23,25,30,0.12);
  --easing: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--graphite);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: 'Noto Serif SC', 'Playfair Display', serif;
  margin: 0;
  font-weight: 600;
  line-height: 1.3;
  color: var(--dark);
}

p { margin: 0; }

@media (min-width: 1200px) {
  .container { max-width: 1200px; }
}

/* ========== Header / Nav ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(23,25,30,0.06);
}

.site-header .navbar {
  min-height: 72px;
  padding: 0;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-lg {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--dark);
  color: var(--gold);
  font-family: 'Playfair Display', 'Noto Serif SC', serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: 4px;
  flex-shrink: 0;
}

.brand-logo span:last-child {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--dark);
  white-space: nowrap;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 0 auto;
}

.navbar-nav .nav-item {
  list-style: none;
}

.navbar-nav .nav-link {
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: #55585E;
  padding: 10px 16px;
  position: relative;
  white-space: nowrap;
  transition: color 0.3s ease;
}

.navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 0;
  height: 2px;
  background: var(--gold);
  transform: translateX(-50%);
  transition: width 0.35s var(--easing);
}

.navbar-nav .nav-link:hover {
  color: var(--dark);
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
  width: 24px;
}

.navbar-nav .nav-link.active {
  color: var(--dark);
  font-weight: 600;
}

.nav-sep {
  width: 1px;
  height: 14px;
  background: var(--line);
  margin: 0 6px;
}

.btn-nav {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--gold);
  padding: 9px 24px;
  border: 1px solid var(--gold);
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
  margin-left: 8px;
  text-decoration: none;
}

.btn-nav:hover {
  background: rgba(184,148,92,0.08);
  color: var(--gold-hover);
  border-color: var(--gold-hover);
}

.navbar-toggler {
  border: none;
  padding: 8px;
  background: transparent;
  box-shadow: none !important;
}

.navbar-toggler:focus {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.tgl-line {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--graphite);
  margin: 5px 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.navbar-toggler[aria-expanded="true"] .tgl-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.navbar-toggler[aria-expanded="true"] .tgl-line:nth-child(2) {
  opacity: 0;
}

.navbar-toggler[aria-expanded="true"] .tgl-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ========== Category Banner ========== */
.cat-banner {
  position: relative;
  padding: 172px 0 92px;
  background-color: var(--dark);
  background-size: cover;
  background-position: center;
  color: var(--dark-text);
  overflow: hidden;
}

.cat-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(23,25,30,0.94) 0%, rgba(23,25,30,0.82) 55%, rgba(23,25,30,0.9) 100%);
  z-index: 1;
}

.cat-banner-watermark {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  font-family: 'Playfair Display', 'Noto Serif SC', serif;
  font-size: 15vw;
  font-weight: 700;
  color: rgba(184,148,92,0.05);
  line-height: 1;
  pointer-events: none;
  z-index: 0;
  letter-spacing: 0.05em;
}

.cat-banner-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.cat-eyebrow {
  display: inline-block;
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  background: rgba(184,148,92,0.14);
  border: 1px solid rgba(184,148,92,0.3);
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.cat-banner h1 {
  font-family: 'Noto Serif SC', 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 600;
  color: var(--dark-text);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.cat-banner h1 .gold {
  color: var(--gold);
}

.cat-banner .lead-text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--dark-sub);
  max-width: 620px;
  margin-bottom: 0;
}

/* ========== Main Content ========== */
.cat-main {
  background: var(--paper);
  padding: 96px 0 96px;
  position: relative;
}

.cat-container {
  max-width: 960px;
  margin: 0 auto;
}

.cat-deco-line {
  height: 1px;
  background: linear-gradient(90deg, rgba(184,148,92,0.55) 0%, rgba(184,148,92,0.08) 100%);
  margin-bottom: 80px;
}

.cat-deco-line.end {
  margin-top: 80px;
  margin-bottom: 0;
  background: linear-gradient(270deg, rgba(184,148,92,0.55) 0%, rgba(184,148,92,0.08) 100%);
}

.cat-section {
  position: relative;
  padding-left: 110px;
  margin-bottom: 104px;
}

.cat-section:last-child {
  margin-bottom: 0;
}

.cat-sec-num {
  position: absolute;
  left: 0;
  top: 2px;
  font-family: 'Playfair Display', 'Noto Serif SC', serif;
  font-size: 44px;
  font-weight: 700;
  line-height: 1.1;
  color: transparent;
  -webkit-text-stroke: 1px var(--gold);
  letter-spacing: 0.02em;
  user-select: none;
}

.cat-section h2 {
  font-family: 'Noto Serif SC', 'Playfair Display', serif;
  font-size: 24px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
  line-height: 1.35;
}

.cat-section .cat-sec-desc {
  font-size: 16px;
  line-height: 1.85;
  color: #4A4D52;
  margin-bottom: 20px;
}

.cat-section .cat-sec-desc:last-of-type {
  margin-bottom: 0;
}

.cat-figure {
  margin: 36px 0 0;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow);
  background: linear-gradient(135deg, #E8E6E1, #F7F6F3);
}

.cat-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 0.6s var(--easing);
}

.cat-figure:hover img {
  transform: scale(1.02);
}

.cat-figure figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 48px 24px 16px;
  font-size: 12px;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  background: linear-gradient(0deg, rgba(23,25,30,0.78) 0%, transparent 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.cat-figure:hover figcaption {
  opacity: 1;
}

/* ========== CTA ========== */
.cat-cta {
  position: relative;
  background: var(--dark);
  padding: 88px 0;
  text-align: center;
  overflow: hidden;
}

.cat-cta::before {
  content: 'PG';
  position: absolute;
  right: 24px;
  bottom: -20px;
  font-family: 'Playfair Display', 'Noto Serif SC', serif;
  font-size: 12vw;
  font-weight: 700;
  color: rgba(184,148,92,0.05);
  line-height: 1;
  pointer-events: none;
}

.cat-cta-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
}

.cat-cta h3 {
  font-family: 'Noto Serif SC', 'Playfair Display', serif;
  font-size: 26px;
  font-weight: 600;
  color: var(--dark-text);
  margin-bottom: 14px;
  line-height: 1.3;
}

.cat-cta p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--dark-sub);
  margin-bottom: 36px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-gold {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--gold);
  color: var(--dark);
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-size: 15px;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all 0.3s var(--easing);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.btn-gold:hover {
  background: var(--gold-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(184,148,92,0.35);
  color: var(--dark);
}

.btn-gold:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.btn-outline-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: var(--dark-text);
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-size: 15px;
  font-weight: 500;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.35);
  cursor: pointer;
  transition: all 0.3s var(--easing);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.btn-outline-light:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.65);
  color: var(--dark-text);
  transform: translateY(-1px);
}

.btn-outline-light:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* ========== Footer ========== */
.site-footer {
  background: #14161A;
  color: rgba(255,255,255,0.65);
  padding-top: 72px;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 1px;
  background: var(--gold);
}

.footer-main {
  padding-bottom: 56px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.footer-brand .brand-lg {
  background: rgba(255,255,255,0.1);
  color: var(--gold);
}

.footer-brand span:last-child {
  color: #F2F1ED;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255,255,255,0.5);
  margin-bottom: 0;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 15px;
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  font-weight: 600;
  color: #F2F1ED;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

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

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul a {
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  transition: color 0.3s ease;
}

.footer-col ul a:hover {
  color: var(--gold);
}

.footer-col .contact-item {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
}

.footer-col .contact-item i {
  color: var(--gold);
  font-style: normal;
  font-size: 8px;
  margin-right: 10px;
}

.qr-placeholder {
  width: 96px;
  height: 96px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  background: rgba(255,255,255,0.04);
  letter-spacing: 0.1em;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(255,255,255,0.35);
}

.footer-bottom .sep {
  display: inline-block;
  width: 1px;
  height: 10px;
  background: rgba(255,255,255,0.2);
  margin: 0 12px;
}

/* ========== Reveal Animations ========== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--easing), transform 0.6s var(--easing);
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }

/* ========== Responsive ========== */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: var(--white);
    padding: 24px;
    border-radius: 0 0 var(--radius) var(--radius);
    box-shadow: var(--shadow);
    margin-top: 8px;
  }

  .navbar-nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    width: 100%;
    margin: 0;
  }

  .navbar-nav .nav-item {
    width: 100%;
  }

  .navbar-nav .nav-link {
    display: block;
    padding: 12px 0;
    font-size: 16px;
    width: 100%;
  }

  .nav-sep {
    display: none;
  }

  .btn-nav {
    margin: 16px 0 0;
    display: inline-flex;
  }
}

@media (max-width: 768px) {
  .cat-banner {
    padding: 144px 0 64px;
  }

  .cat-banner h1 {
    font-size: 28px;
  }

  .cat-main {
    padding: 64px 0;
  }

  .cat-deco-line {
    margin-bottom: 56px;
  }

  .cat-deco-line.end {
    margin-top: 56px;
  }

  .cat-section {
    padding-left: 0;
    margin-bottom: 72px;
  }

  .cat-sec-num {
    position: static;
    font-size: 26px;
    margin-bottom: 12px;
    -webkit-text-stroke: 0;
    color: var(--gold);
  }

  .cat-section h2 {
    font-size: 21px;
  }

  .cat-figure figcaption {
    opacity: 1;
  }

  .cat-cta {
    padding: 64px 0;
  }

  .cat-cta h3 {
    font-size: 22px;
  }

  .footer-main [class*="col-"] {
    margin-bottom: 32px;
  }

  .footer-col:last-child {
    margin-bottom: 0;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 576px) {
  .brand-logo span:last-child {
    font-size: 13px;
    letter-spacing: 0.06em;
  }

  .cat-banner {
    padding: 128px 0 48px;
  }

  .cat-eyebrow {
    font-size: 11px;
    padding: 5px 14px;
  }

  .cat-banner h1 {
    font-size: 26px;
    line-height: 1.25;
  }

  .cat-banner .lead-text {
    font-size: 14px;
  }

  .cat-section .cat-sec-desc {
    font-size: 15px;
    line-height: 1.8;
  }

  .cat-figure {
    margin-top: 24px;
    border-radius: 8px;
  }

  .cta-actions {
    flex-direction: column;
    align-items: stretch;
    padding: 0 24px;
  }

  .btn-gold,
  .btn-outline-light {
    width: 100%;
  }

  .footer-bottom {
    padding: 20px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* roulang page: category3 */
:root {
            --ink: #17191E;
            --gold: #B8945C;
            --gold-hover: #C4A26B;
            --green: #254D46;
            --paper: #F7F6F3;
            --white: #FFFFFF;
            --graphite: #2A2D32;
            --mist: #8A8F98;
            --border: #E8E6E1;
            --dark-text: #F2F1ED;
            --dark-sub: rgba(255, 255, 255, 0.55);
            --dark-border: rgba(255, 255, 255, 0.1);
            --radius-card: 12px;
            --radius-btn: 8px;
            --shadow-card: 0 8px 24px rgba(23, 25, 30, 0.06);
            --shadow-hover: 0 16px 40px rgba(23, 25, 30, 0.12);
            --ease: cubic-bezier(0.22, 1, 0.36, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            scroll-padding-top: 90px;
        }
        body {
            margin: 0;
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            font-size: 16px;
            line-height: 1.8;
            color: var(--graphite);
            background: var(--paper);
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.3s var(--ease);
        }
        img {
            max-width: 100%;
            display: block;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 32px;
            font-size: 15px;
            font-weight: 600;
            font-family: 'Noto Sans SC', sans-serif;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: all 0.35s var(--ease);
            line-height: 1.4;
        }
        .btn:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
        }
        .btn-primary {
            background: var(--gold);
            color: var(--ink);
        }
        .btn-primary:hover {
            background: var(--gold-hover);
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(184, 148, 92, 0.3);
            color: var(--ink);
        }
        .btn-line {
            border: 1px solid var(--gold);
            color: var(--gold);
            background: transparent;
        }
        .btn-line:hover {
            background: rgba(184, 148, 92, 0.08);
            color: var(--gold);
            transform: translateY(-2px);
        }
        .btn-white {
            background: #fff;
            color: var(--ink);
        }
        .btn-white:hover {
            background: rgba(255, 255, 255, 0.85);
            color: var(--ink);
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 72px;
            z-index: 1030;
            background: transparent;
            transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease), border 0.4s var(--ease);
            border-bottom: 1px solid transparent;
        }
        .site-header .navbar {
            height: 72px;
            padding: 0;
        }
        .site-header .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
        }
        .site-header .brand-logo .brand-lg {
            width: 32px;
            height: 32px;
            background: var(--ink);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: 'Playfair Display', serif;
            font-size: 14px;
            font-weight: 700;
            color: var(--gold);
            letter-spacing: 0;
        }
        .site-header .brand-logo span:last-child {
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.12em;
            color: var(--dark-text);
            transition: color 0.4s var(--ease);
        }
        .site-header .nav-item {
            position: relative;
        }
        .site-header .nav-link {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.82);
            padding: 8px 0;
            font-weight: 500;
            position: relative;
            transition: color 0.3s var(--ease);
        }
        .site-header .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--gold);
            transition: width 0.35s var(--ease);
            border-radius: 2px;
        }
        .site-header .nav-link:hover {
            color: var(--gold);
        }
        .site-header .nav-link:hover::after,
        .site-header .nav-link.active::after {
            width: 100%;
        }
        .site-header .nav-link.active {
            color: var(--gold);
        }
        .site-header .nav-sep {
            width: 1px;
            height: 18px;
            background: rgba(255, 255, 255, 0.2);
            margin: 0 22px;
            transition: background 0.4s var(--ease);
        }
        .site-header .btn-nav {
            font-size: 14px;
            font-weight: 600;
            color: var(--gold);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 8px 20px;
            border-radius: 100px;
            transition: all 0.3s var(--ease);
            background: transparent;
        }
        .site-header .btn-nav:hover {
            background: var(--gold);
            color: var(--ink);
            border-color: var(--gold);
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(23, 25, 30, 0.04);
        }
        .site-header.scrolled .brand-logo .brand-lg {
            background: var(--ink);
        }
        .site-header.scrolled .brand-logo span:last-child {
            color: var(--ink);
        }
        .site-header.scrolled .nav-link {
            color: #55585E;
        }
        .site-header.scrolled .nav-link.active,
        .site-header.scrolled .nav-link:hover {
            color: var(--gold);
        }
        .site-header.scrolled .nav-sep {
            background: var(--border);
        }
        .site-header .navbar-toggler {
            border: none;
            padding: 8px 6px;
            box-shadow: none !important;
            display: flex;
            flex-direction: column;
            gap: 5px;
            align-items: center;
            justify-content: center;
        }
        .site-header .tgl-line {
            width: 22px;
            height: 1px;
            background: #fff;
            transition: all 0.3s var(--ease);
            display: block;
        }
        .site-header.scrolled .tgl-line {
            background: var(--ink);
        }
        .site-header .navbar-toggler[aria-expanded="true"] .tgl-line:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .site-header .navbar-toggler[aria-expanded="true"] .tgl-line:nth-child(2) {
            opacity: 0;
        }
        .site-header .navbar-toggler[aria-expanded="true"] .tgl-line:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        /* ===== Hero 分类横幅 ===== */
        .cat-hero {
            position: relative;
            padding: 180px 0 80px;
            background: var(--ink) url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            min-height: 400px;
            display: flex;
            align-items: center;
            color: var(--dark-text);
            overflow: hidden;
        }
        .cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(128deg, rgba(23, 25, 30, 0.93) 0%, rgba(23, 25, 30, 0.68) 60%, rgba(23, 25, 30, 0.35) 100%);
            z-index: 1;
        }
        .cat-hero::after {
            content: 'PG';
            position: absolute;
            right: -30px;
            bottom: -40px;
            font-family: 'Playfair Display', serif;
            font-size: 16vw;
            font-weight: 700;
            line-height: 1;
            color: var(--gold);
            opacity: 0.06;
            z-index: 0;
            pointer-events: none;
        }
        .cat-hero .container {
            position: relative;
            z-index: 2;
        }
        .cat-hero-inner {
            max-width: 720px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border: 1px solid rgba(184, 148, 92, 0.5);
            border-radius: 100px;
            font-size: 12px;
            letter-spacing: 0.06em;
            color: var(--gold);
            background: rgba(184, 148, 92, 0.1);
            margin-bottom: 20px;
        }
        .hero-badge i {
            font-size: 10px;
        }
        .cat-hero h1 {
            font-family: 'Noto Serif SC', serif;
            font-weight: 600;
            font-size: clamp(2rem, 4vw, 3.2rem);
            line-height: 1.2;
            margin: 0 0 16px;
            color: #fff;
            letter-spacing: 0.01em;
        }
        .cat-hero h1 .gold-text {
            color: var(--gold);
        }
        .cat-hero .hero-sub {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.7);
            margin: 0;
            max-width: 600px;
        }

        /* ===== 页面主体 ===== */
        .page-main {
            padding: 80px 0 96px;
        }
        .page-layout {
            display: grid;
            grid-template-columns: 180px minmax(0, 1fr);
            gap: 56px;
            align-items: start;
        }

        /* ===== 左侧目录 ===== */
        .page-toc {
            position: sticky;
            top: 100px;
            padding: 24px 0;
        }
        .toc-title {
            font-family: 'Noto Serif SC', serif;
            font-size: 18px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
            letter-spacing: 0.04em;
        }
        .toc-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .toc-link {
            display: block;
            padding: 8px 12px;
            font-size: 13px;
            color: var(--mist);
            border-radius: 6px;
            transition: all 0.25s var(--ease);
            border-left: 2px solid transparent;
            font-weight: 500;
            letter-spacing: 0.02em;
        }
        .toc-link:hover {
            color: var(--ink);
            background: rgba(247, 246, 243, 0.8);
        }
        .toc-link.active {
            color: var(--gold);
            background: rgba(184, 148, 92, 0.06);
            border-left-color: var(--gold);
        }

        /* ===== 移动端目录胶囊 ===== */
        .mobile-toc {
            display: none;
            gap: 10px;
            overflow-x: auto;
            padding: 4px 0 8px;
            margin-bottom: 32px;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }
        .mobile-toc a {
            flex-shrink: 0;
            padding: 8px 20px;
            border: 1px solid var(--border);
            border-radius: 100px;
            font-size: 13px;
            color: var(--mist);
            background: #fff;
            transition: all 0.3s var(--ease);
            white-space: nowrap;
            font-weight: 500;
        }
        .mobile-toc a:hover,
        .mobile-toc a.active {
            border-color: var(--gold);
            color: var(--gold);
            background: rgba(184, 148, 92, 0.06);
        }

        /* ===== 右侧内容块 ===== */
        .toc-content {
            background: var(--white);
            border-radius: var(--radius-card);
            padding: 56px;
            box-shadow: var(--shadow-card);
        }
        .content-block {
            margin-bottom: 56px;
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
        }
        .content-block.visible {
            opacity: 1;
            transform: translateY(0);
        }
        .content-block:last-child {
            margin-bottom: 0;
        }
        .content-block h2 {
            font-family: 'Noto Serif SC', serif;
            font-weight: 600;
            font-size: 1.7rem;
            line-height: 1.4;
            color: var(--ink);
            margin: 0 0 16px;
            letter-spacing: 0.02em;
        }
        .content-block h2::before {
            content: '';
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--gold);
            vertical-align: middle;
            margin-right: 12px;
            border-radius: 2px;
        }
        .content-block p {
            font-size: 15px;
            line-height: 1.85;
            color: #55585E;
            margin-bottom: 16px;
        }
        .content-block p:last-child {
            margin-bottom: 0;
        }
        .content-img {
            border-radius: var(--radius-card);
            overflow: hidden;
            margin: 24px 0 8px;
            position: relative;
            background: linear-gradient(135deg, #e8e6e1, #f7f6f3);
        }
        .content-img img {
            width: 100%;
            height: auto;
            min-height: 160px;
            object-fit: cover;
            transition: transform 0.5s var(--ease);
        }
        .content-img:hover img {
            transform: scale(1.02);
        }
        .img-caption {
            font-size: 12px;
            color: var(--mist);
            text-align: right;
            padding: 6px 4px 0;
            letter-spacing: 0.02em;
        }

        /* ===== 流程列表 ===== */
        .flow-list {
            margin-top: 28px;
            border-top: 1px solid var(--border);
        }
        .flow-step {
            display: grid;
            grid-template-columns: 56px 1fr;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border);
            transition: background 0.3s var(--ease);
        }
        .flow-step:hover {
            background: rgba(247, 246, 243, 0.6);
        }
        .flow-num {
            font-family: 'Playfair Display', serif;
            font-size: 32px;
            font-weight: 600;
            color: var(--gold);
            line-height: 1.2;
        }
        .flow-info h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--ink);
            margin: 0 0 6px;
        }
        .flow-info p {
            font-size: 14px;
            color: var(--mist);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== 引用块 ===== */
        .promise-quote {
            border-left: 4px solid var(--gold);
            background: rgba(247, 246, 243, 0.7);
            border-radius: 0 8px 8px 0;
            padding: 24px 28px;
            margin: 24px 0;
            font-size: 15px;
            line-height: 1.85;
            color: var(--graphite);
            font-style: normal;
        }
        .promise-quote::before {
            content: '\201C';
            font-family: 'Playfair Display', serif;
            font-size: 36px;
            color: var(--gold);
            line-height: 0;
            display: inline-block;
            margin-right: 4px;
        }
        .promise-quote cite {
            display: block;
            margin-top: 12px;
            font-size: 13px;
            color: var(--mist);
            font-style: normal;
            text-align: right;
        }

        /* ===== 要点列表 ===== */
        .point-list {
            list-style: none;
            padding: 0;
            margin: 24px 0 0;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .point-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 14px 16px;
            background: var(--paper);
            border-radius: 8px;
            font-size: 14px;
            color: var(--graphite);
            border: 1px solid transparent;
            transition: all 0.3s var(--ease);
        }
        .point-list li:hover {
            border-color: rgba(184, 148, 92, 0.4);
            background: #fff;
        }
        .point-list li i {
            color: var(--gold);
            font-size: 13px;
            margin-top: 5px;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            margin-top: 8px;
        }
        .accordion-item {
            background: transparent;
            border: none;
            border-top: 1px solid var(--border);
            border-radius: 0 !important;
        }
        .accordion-item:last-child {
            border-bottom: 1px solid var(--border);
        }
        .accordion-button {
            background: transparent !important;
            color: var(--graphite);
            font-size: 15px;
            font-weight: 600;
            padding: 20px 40px 20px 0;
            box-shadow: none !important;
            font-family: 'Noto Sans SC', sans-serif;
            letter-spacing: 0.01em;
            transition: color 0.3s var(--ease);
            position: relative;
        }
        .accordion-button:hover {
            color: var(--gold);
        }
        .accordion-button:not(.collapsed) {
            color: var(--gold);
        }
        .accordion-button::after {
            background-image: none;
            content: '+';
            font-family: 'Noto Sans SC', sans-serif;
            font-size: 26px;
            font-weight: 300;
            color: var(--gold);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            position: absolute;
            right: 4px;
            top: 50%;
            transform: translateY(-50%) rotate(0);
            transition: transform 0.35s var(--ease);
            line-height: 1;
        }
        .accordion-button:not(.collapsed)::after {
            transform: translateY(-50%) rotate(45deg);
        }
        .accordion-body {
            padding: 0 0 20px;
            color: var(--mist);
            font-size: 14px;
            line-height: 1.8;
        }

        /* ===== 返回首页 ===== */
        .back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--mist);
            transition: all 0.3s var(--ease);
            padding: 8px 0;
        }
        .back-home i {
            transition: transform 0.3s var(--ease);
            font-size: 12px;
        }
        .back-home:hover {
            color: var(--gold);
        }
        .back-home:hover i {
            transform: translateX(-4px);
        }

        /* ===== CTA 区 ===== */
        .cta-section {
            background: var(--ink) url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            position: relative;
            padding: 96px 24px;
            text-align: center;
            color: var(--dark-text);
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(23, 25, 30, 0.88), rgba(23, 25, 30, 0.94));
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .cta-section h3 {
            font-family: 'Noto Serif SC', serif;
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 600;
            color: #fff;
            margin: 0 0 12px;
            letter-spacing: 0.01em;
        }
        .cta-section .cta-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-note {
            margin-top: 20px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #14161A;
            color: rgba(255, 255, 255, 0.65);
            padding: 64px 0 0;
            font-size: 14px;
        }
        .site-footer::before {
            content: '';
            display: block;
            width: 40px;
            height: 2px;
            background: var(--gold);
            margin: 0 auto 48px;
            border-radius: 2px;
        }
        .footer-main {
            padding-bottom: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }
        .footer-brand .brand-lg {
            width: 32px;
            height: 32px;
            background: var(--gold);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: 'Playfair Display', serif;
            font-size: 14px;
            font-weight: 700;
            color: var(--ink);
        }
        .footer-brand span:last-child {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            letter-spacing: 0.08em;
        }
        .footer-desc {
            font-size: 13px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.5);
            margin-bottom: 0;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.06em;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 20px;
            height: 1px;
            background: var(--gold);
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            transition: color 0.3s var(--ease);
        }
        .footer-col ul a:hover {
            color: var(--gold);
        }
        .contact-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            margin-bottom: 10px;
            color: rgba(255, 255, 255, 0.55);
        }
        .contact-item i {
            color: var(--gold);
            font-size: 10px;
            font-style: normal;
        }
        .qr-placeholder {
            width: 96px;
            height: 96px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
            background: rgba(255, 255, 255, 0.03);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.35);
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom .sep {
            display: inline-block;
            width: 1px;
            height: 12px;
            background: rgba(255, 255, 255, 0.15);
            margin: 0 12px;
            vertical-align: middle;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199px) {
            .toc-content {
                padding: 40px;
            }
        }
        @media (max-width: 991px) {
            .page-layout {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .page-toc {
                display: none;
            }
            .mobile-toc {
                display: flex;
            }
            .site-header .navbar-collapse {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(23, 25, 30, 0.98);
                backdrop-filter: blur(14px);
                -webkit-backdrop-filter: blur(14px);
                padding: 48px 32px;
                border-radius: 0;
                margin-top: 0;
                z-index: 1040;
                overflow-y: auto;
                border: none;
            }
            .site-header .navbar-nav {
                gap: 4px;
            }
            .site-header .nav-link {
                font-family: 'Noto Serif SC', serif;
                font-size: 24px;
                color: var(--dark-text) !important;
                padding: 12px 0;
            }
            .site-header .nav-sep {
                display: none;
            }
            .site-header .btn-nav {
                display: inline-flex;
                margin-top: 24px;
                width: fit-content;
                border-color: rgba(255, 255, 255, 0.4);
                color: var(--gold);
            }
            .point-list {
                grid-template-columns: 1fr;
            }
            .cat-hero {
                padding: 160px 0 64px;
                min-height: 360px;
            }
        }
        @media (max-width: 767px) {
            .page-main {
                padding: 48px 0 64px;
            }
            .toc-content {
                padding: 28px 24px;
                border-radius: 10px;
            }
            .content-block h2 {
                font-size: 1.35rem;
            }
            .flow-step {
                grid-template-columns: 44px 1fr;
                gap: 14px;
            }
            .flow-num {
                font-size: 26px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                max-width: 280px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer::before {
                margin-bottom: 32px;
            }
        }
        @media (max-width: 575px) {
            .cat-hero h1 {
                font-size: 1.7rem;
            }
            .cat-hero .hero-sub {
                font-size: 14px;
            }
            .toc-content {
                padding: 20px 16px;
            }
            .point-list li {
                font-size: 13px;
            }
        }

        /* ===== 滚动入场动画 ===== */
        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
        }