/* roulang page: index */
:root{
  --color-primary:#0E3B38;
  --color-primary-deep:#082A27;
  --color-accent:#C6A15B;
  --color-accent-active:#A98844;
  --color-bg:#FAF8F3;
  --color-bg-alt:#EEF1EA;
  --color-text:#18211F;
  --color-text-2:#5B6663;
  --color-border:rgba(14,59,56,0.12);
  --color-white:#FFFFFF;
  --success:#2F7D5C;
  --warning:#C98A2D;
  --error:#C25A42;
  --info:#3D6B8A;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --radius-card:16px;
  --radius-btn:6px;
  --radius-input:10px;
  --radius-tag:999px;
  --shadow-sm:0 1px 2px rgba(14,59,56,0.04);
  --shadow-lg:0 12px 32px rgba(14,59,56,0.10);
  --container:1280px;
  --transition:0.3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--color-text);
  background:var(--color-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--color-primary);text-decoration:none;transition:color .2s,box-shadow .2s;}
a:hover{color:var(--color-accent-active);}
ul,ol{list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit;border:none;outline:none;}
button{cursor:pointer;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-head{margin-bottom:48px;}
.section-head .kicker{
  display:inline-block;
  font-size:14px;
  font-weight:600;
  letter-spacing:0.08em;
  color:var(--color-accent-active);
  text-transform:uppercase;
  border-bottom:1px solid var(--color-accent);
  padding-bottom:4px;
  margin-bottom:12px;
}
.section-head h2{
  font-family:var(--font-serif);
  font-size:32px;
  font-weight:700;
  line-height:1.25;
  color:var(--color-text);
  letter-spacing:-0.01em;
}
.section-head p{
  margin-top:12px;
  color:var(--color-text-2);
  font-size:16px;
  max-width:560px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 28px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  transition:all .25s ease;
  border:1px solid transparent;
  white-space:nowrap;
}
.btn-primary{
  background:var(--color-accent);
  color:var(--color-primary-deep);
}
.btn-primary:hover{
  background:var(--color-accent-active);
  color:var(--color-white);
  transform:translateY(-1px);
  box-shadow:var(--shadow-sm);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--color-primary);
  border-color:var(--color-primary);
}
.btn-ghost:hover{
  background:rgba(198,161,91,0.08);
  border-color:var(--color-accent-active);
  color:var(--color-accent-active);
  transform:translateY(-1px);
}
.btn-ghost-light{
  background:transparent;
  color:var(--color-white);
  border-color:rgba(255,255,255,0.7);
}
.btn-ghost-light:hover{
  background:rgba(255,255,255,0.12);
  color:var(--color-white);
  border-color:var(--color-white);
}
.btn:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible{
  outline:2px solid var(--color-accent);
  outline-offset:2px;
}
.badge{
  display:inline-block;
  padding:3px 12px;
  border-radius:var(--radius-tag);
  font-size:12px;
  font-weight:600;
  background:var(--color-bg-alt);
  color:var(--color-primary);
  border:1px solid var(--color-border);
}
.badge-accent{
  background:rgba(198,161,91,0.12);
  color:var(--color-accent-active);
  border-color:rgba(198,161,91,0.3);
}

/* ========== Header / Nav ========== */
.header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  background:rgba(250,248,243,0.46);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,0.25);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.header.scrolled{
  background:rgba(250,248,243,0.92);
  box-shadow:var(--shadow-sm);
  border-bottom-color:var(--color-border);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-icon{
  width:36px;height:36px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--color-primary),var(--color-primary-deep));
  display:flex;align-items:center;justify-content:center;
  color:var(--color-accent);
  font-size:18px;
  box-shadow:0 4px 12px rgba(14,59,56,0.24);
}
.logo-text{
  font-family:var(--font-serif);
  font-size:20px;
  font-weight:700;
  color:var(--color-white);
  letter-spacing:-0.01em;
  transition:color .3s;
}
.header.scrolled .logo-text{color:var(--color-primary);}
.logo-text span{color:var(--color-accent);}
.nav-menu{
  display:flex;
  align-items:center;
  gap:32px;
}
.nav-link{
  font-size:15px;
  font-weight:500;
  color:rgba(255,255,255,0.9);
  transition:color .2s;
  position:relative;
}
.nav-link:hover{color:var(--color-accent);}
.nav-link.active{color:var(--color-accent);}
.nav-link.active::after{
  content:'';
  position:absolute;
  left:0;bottom:-4px;
  width:100%;height:2px;
  background:var(--color-accent);
  border-radius:2px;
}
.header.scrolled .nav-link{color:var(--color-text);}
.header.scrolled .nav-link:hover{color:var(--color-accent-active);}
.header.scrolled .nav-link.active{color:var(--color-accent-active);}
.header.scrolled .nav-link.active::after{background:var(--color-accent-active);}
.nav-actions{
  display:flex;
  align-items:center;
  gap:16px;
  flex-shrink:0;
}
.nav-search{
  width:40px;height:40px;
  border-radius:8px;
  background:transparent;
  color:var(--color-white);
  display:flex;align-items:center;justify-content:center;
  transition:background .2s;
  border:1px solid rgba(255,255,255,0.3);
}
.header.scrolled .nav-search{
  color:var(--color-primary);
  border-color:var(--color-border);
}
.nav-search:hover{background:rgba(255,255,255,0.12);}
.header.scrolled .nav-search:hover{background:var(--color-bg-alt);}
.nav-cta{
  height:40px;
  padding:0 20px;
}
.hamburger{
  display:none;
  width:42px;height:42px;
  background:transparent;
  border-radius:8px;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  border:1px solid rgba(255,255,255,0.3);
  transition:background .2s;
}
.header.scrolled .hamburger{border-color:var(--color-border);}
.hamburger span{
  width:18px;height:2px;
  background:var(--color-white);
  border-radius:2px;
  transition:all .3s ease;
}
.header.scrolled .hamburger span{background:var(--color-primary);}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hamburger.open span:nth-child(2){opacity:0;}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* Mobile Menu */
.mobile-menu{
  position:fixed;
  top:0;left:0;right:0;bottom:0;
  background:var(--color-bg);
  z-index:999;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:8px;
  opacity:0;
  visibility:hidden;
  transition:opacity .3s ease,visibility .3s;
}
.mobile-menu.open{opacity:1;visibility:visible;}
.mobile-menu a{
  font-family:var(--font-serif);
  font-size:28px;
  font-weight:700;
  color:var(--color-text);
  padding:12px 24px;
}
.mobile-menu a:hover{color:var(--color-accent-active);}
.mobile-menu .mmenu-close{
  position:absolute;
  top:20px;right:24px;
  font-size:24px;
  color:var(--color-text);
  background:transparent;
  width:44px;height:44px;
  border-radius:8px;
  display:flex;align-items:center;justify-content:center;
}

/* ========== Hero ========== */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:center;
  background:linear-gradient(135deg,rgba(8,42,39,0.94) 0%,rgba(14,59,56,0.82) 100%),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  color:var(--color-white);
  padding:140px 0 120px;
  overflow:hidden;
}
.hero::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;bottom:0;
  background:radial-gradient(ellipse at 70% 40%,rgba(198,161,91,0.08) 0%,transparent 60%);
}
.hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:5fr 4fr;
  gap:64px;
  align-items:center;
}
.hero-copy .hero-tag{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:0.1em;
  color:var(--color-accent);
  border:1px solid rgba(198,161,91,0.4);
  padding:4px 14px;
  border-radius:var(--radius-tag);
  margin-bottom:20px;
  background:rgba(198,161,91,0.08);
}
.hero-copy h1{
  font-family:var(--font-serif);
  font-size:42px;
  font-weight:700;
  line-height:1.22;
  letter-spacing:-0.015em;
  color:var(--color-white);
  margin-bottom:20px;
}
.hero-copy h1 span{
  color:var(--color-accent);
}
.hero-copy .hero-desc{
  font-size:17px;
  line-height:1.9;
  color:rgba(250,248,243,0.85);
  max-width:520px;
  margin-bottom:32px;
}
.hero-ctas{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}
.hero-points{
  margin-top:36px;
  display:flex;
  gap:28px;
  flex-wrap:wrap;
}
.hero-points li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(250,248,243,0.8);
}
.hero-points i{
  color:var(--color-accent);
  font-size:16px;
}
.hero-login-card{
  background:rgba(255,255,255,0.08);
  backdrop-filter:blur(24px) saturate(160%);
  -webkit-backdrop-filter:blur(24px) saturate(160%);
  border:1px solid rgba(255,255,255,0.18);
  border-radius:20px;
  padding:36px;
  box-shadow:0 24px 64px rgba(0,0,0,0.24);
}
.login-card-head{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:24px;
  padding-bottom:20px;
  border-bottom:1px solid rgba(255,255,255,0.14);
}
.login-card-head .lc-icon{
  width:38px;height:38px;
  border-radius:10px;
  background:var(--color-accent);
  color:var(--color-primary-deep);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;
}
.login-card-head h3{
  font-size:17px;
  font-weight:600;
  color:var(--color-white);
  line-height:1.3;
}
.login-card-head p{
  font-size:12px;
  color:rgba(250,248,243,0.6);
}
.login-form .form-group{
  margin-bottom:16px;
}
.login-form label{
  display:block;
  font-size:13px;
  font-weight:500;
  color:rgba(250,248,243,0.75);
  margin-bottom:6px;
}
.login-form input{
  width:100%;
  height:46px;
  border-radius:var(--radius-input);
  border:1px solid rgba(255,255,255,0.2);
  background:rgba(255,255,255,0.08);
  color:var(--color-white);
  padding:0 16px;
  transition:all .25s;
}
.login-form input::placeholder{color:rgba(250,248,243,0.4);}
.login-form input:focus{
  border-color:var(--color-accent);
  box-shadow:0 0 0 3px rgba(198,161,91,0.18);
  background:rgba(255,255,255,0.12);
}
.login-form .btn{width:100%;}
.login-form .form-tip{
  margin-top:12px;
  text-align:center;
  font-size:13px;
  color:rgba(250,248,243,0.6);
}
.login-form .form-tip a{
  color:var(--color-accent);
}
.login-form .form-tip a:hover{text-decoration:underline;}

/* ========== Metrics ========== */
.metrics-wrap{
  position:relative;
  margin-top:-56px;
  z-index:5;
}
.metrics-card{
  background:var(--color-white);
  border-radius:24px;
  border:1px solid var(--color-accent);
  box-shadow:var(--shadow-lg);
  padding:40px 48px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  position:relative;
}
.metrics-card::before{
  content:'';
  position:absolute;
  top:-1px;left:40px;
  width:80px;height:2px;
  background:var(--color-accent);
}
.metric-item{
  padding:16px 32px;
  position:relative;
}
.metric-item:not(:last-child)::after{
  content:'';
  position:absolute;
  right:0;top:20%;bottom:20%;
  width:1px;
  background:var(--color-border);
}
.metric-num{
  font-family:var(--font-serif);
  font-size:42px;
  font-weight:700;
  color:var(--color-primary);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.metric-num .suffix{
  font-size:20px;
  color:var(--color-accent-active);
  margin-left:2px;
}
.metric-label{
  font-size:13px;
  color:var(--color-text-2);
  margin-top:6px;
}
.metric-trend{
  display:inline-flex;
  align-items:center;
  gap:4px;
  font-size:12px;
  font-weight:600;
  color:var(--success);
  margin-top:6px;
  background:rgba(47,125,92,0.08);
  padding:2px 8px;
  border-radius:var(--radius-tag);
}

/* ========== Services Matrix ========== */
.services-section{
  background:var(--color-bg);
  padding:104px 0;
}
.services-grid{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:64px;
}
.services-head{
  position:sticky;
  top:120px;
  align-self:start;
}
.services-head h2{
  font-family:var(--font-serif);
  font-size:32px;
  font-weight:700;
  line-height:1.25;
  letter-spacing:-0.01em;
  color:var(--color-text);
  margin-bottom:16px;
}
.services-head p{
  color:var(--color-text-2);
  font-size:16px;
  line-height:1.8;
  margin-bottom:24px;
}
.services-head .btn{display:inline-flex;}
.services-list{
  border-top:1px solid var(--color-border);
}
.service-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:32px 16px;
  border-bottom:1px solid var(--color-border);
  transition:background .3s,padding-left .3s;
}
.service-item:hover{
  background:var(--color-bg-alt);
  padding-left:24px;
}
.service-item .service-index{
  font-family:var(--font-serif);
  font-size:16px;
  font-weight:700;
  color:var(--color-accent-active);
  flex-shrink:0;
  width:40px;
  letter-spacing:0.02em;
}
.service-item .service-main{
  flex:1;
  min-width:0;
}
.service-item .service-main h3{
  font-size:18px;
  font-weight:600;
  color:var(--color-text);
  margin-bottom:4px;
}
.service-item .service-main p{
  font-size:14px;
  color:var(--color-text-2);
  line-height:1.7;
}
.service-item .service-link{
  flex-shrink:0;
  width:36px;height:36px;
  border-radius:8px;
  border:1px solid var(--color-border);
  display:flex;align-items:center;justify-content:center;
  color:var(--color-primary);
  transition:all .3s;
  background:var(--color-white);
}
.service-item:hover .service-link{
  background:var(--color-accent);
  color:var(--color-primary-deep);
  border-color:var(--color-accent);
  transform:translateX(4px);
}

/* ========== Compare ========== */
.compare-section{
  background:var(--color-bg-alt);
  padding:104px 0;
}
.compare-wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
}
.compare-card{
  background:var(--color-white);
  border-radius:var(--radius-card);
  border:1px solid var(--color-border);
  padding:36px;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .3s,transform .3s;
}
.compare-card:hover{
  box-shadow:var(--shadow-lg);
  transform:translateY(-4px);
}
.compare-card.winner{
  border-color:var(--color-accent);
  position:relative;
}
.compare-card.winner::before{
  content:'推荐方案';
  position:absolute;
  top:-12px;right:24px;
  background:var(--color-accent);
  color:var(--color-primary-deep);
  font-size:12px;
  font-weight:700;
  padding:4px 14px;
  border-radius:var(--radius-tag);
  letter-spacing:0.04em;
}
.compare-card h3{
  font-family:var(--font-serif);
  font-size:22px;
  font-weight:700;
  color:var(--color-text);
  margin-bottom:8px;
}
.compare-card .compare-sub{
  font-size:14px;
  color:var(--color-text-2);
  margin-bottom:24px;
}
.compare-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:12px 0;
  font-size:15px;
  line-height:1.6;
  color:var(--color-text);
  border-bottom:1px solid var(--color-border);
}
.compare-list li:last-child{border-bottom:none;}
.compare-list i{
  margin-top:4px;
  font-size:14px;
  flex-shrink:0;
}
.compare-list .fa-check-circle{color:var(--success);}
.compare-list .fa-times-circle{color:var(--error);}
.compare-bar{
  margin-top:28px;
  padding:20px;
  border-radius:12px;
  background:var(--color-bg-alt);
}
.compare-bar .bar-label{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--color-text-2);
  margin-bottom:10px;
}
.compare-bar .bar-label strong{
  font-size:20px;
  color:var(--color-text);
  font-variant-numeric:tabular-nums;
}
.compare-bar .bar-track{
  height:8px;
  border-radius:4px;
  background:var(--color-border);
  overflow:hidden;
  position:relative;
}
.compare-bar .bar-fill{
  height:100%;
  border-radius:4px;
  background:var(--color-accent);
  transition:width 1s ease;
}
.compare-bar.alt .bar-fill{
  background:var(--color-primary);
}

/* ========== Latest Info ========== */
.latest-section{
  background:var(--color-bg);
  padding:104px 0;
}
.latest-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:start;
}
.featured-post{
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--color-white);
  border:1px solid var(--color-border);
  box-shadow:var(--shadow-sm);
  transition:box-shadow .3s,transform .3s;
}
.featured-post:hover{
  box-shadow:var(--shadow-lg);
  transform:translateY(-4px);
}
.featured-post .featured-cover{
  display:block;
  height:260px;
  overflow:hidden;
  position:relative;
}
.featured-post .featured-cover img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.featured-post:hover .featured-cover img{transform:scale(1.03);}
.featured-post .featured-cover::after{
  content:'';
  position:absolute;
  top:0;left:0;right:0;bottom:0;
  background:linear-gradient(to top,rgba(8,42,39,0.35),transparent 50%);
}
.featured-post .featured-body{
  padding:28px;
}
.featured-post .featured-body .badge{
  margin-bottom:14px;
}
.featured-post .featured-body h3{
  font-family:var(--font-serif);
  font-size:20px;
  font-weight:700;
  line-height:1.4;
  color:var(--color-text);
  margin-bottom:10px;
}
.featured-post .featured-body h3 a{color:inherit;}
.featured-post .featured-body h3 a:hover{color:var(--color-accent-active);}
.featured-post .featured-body p{
  font-size:15px;
  color:var(--color-text-2);
  line-height:1.8;
  margin-bottom:16px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--color-text-2);
}
.post-meta .read-more{
  font-weight:600;
  font-size:14px;
  color:var(--color-primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:gap .3s;
}
.post-meta .read-more:hover{gap:10px;color:var(--color-accent-active);}
.post-list{
  display:flex;
  flex-direction:column;
  gap:0;
}
.post-item{
  padding:28px 8px;
  border-bottom:1px solid var(--color-border);
  transition:background .3s,padding-left .3s;
  border-radius:12px;
}
.post-item:hover{
  background:var(--color-bg-alt);
  padding-left:20px;
}
.post-item .badge{margin-bottom:10px;}
.post-item h4{
  font-size:17px;
  font-weight:600;
  line-height:1.4;
  color:var(--color-text);
  margin-bottom:8px;
}
.post-item h4 a{color:inherit;}
.post-item h4 a:hover{color:var(--color-accent-active);}
.post-item p{
  font-size:14px;
  color:var(--color-text-2);
  line-height:1.7;
  margin-bottom:12px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.empty-state{
  grid-column:1/-1;
  background:var(--color-bg-alt);
  border-radius:var(--radius-card);
  padding:80px 40px;
  text-align:center;
  color:var(--color-text-2);
}
.empty-state i{
  font-size:48px;
  color:var(--color-accent);
  margin-bottom:16px;
  opacity:0.6;
}
.empty-state p{font-size:16px;}

/* ========== FAQ ========== */
.faq-section{
  background:var(--color-white);
  padding:104px 0;
}
.faq-list{
  max-width:860px;
  margin:0 auto;
  background:var(--color-white);
  border-radius:var(--radius-card);
  border:1px solid var(--color-border);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.faq-item{
  border-bottom:1px solid var(--color-border);
}
.faq-item:last-child{border-bottom:none;}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:24px 32px;
  background:transparent;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--color-text);
  transition:background .25s;
}
.faq-question:hover{background:var(--color-bg-alt);}
.faq-icon{
  width:30px;height:30px;
  border-radius:8px;
  border:1px solid var(--color-border);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;
  color:var(--color-primary);
  transition:transform .3s,background .3s,color .3s;
  flex-shrink:0;
}
.faq-item.open .faq-icon{
  transform:rotate(45deg);
  background:var(--color-accent);
  color:var(--color-primary-deep);
  border-color:var(--color-accent);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s ease;
}
.faq-answer-inner{
  padding:0 32px 24px;
  font-size:15px;
  line-height:1.8;
  color:var(--color-text-2);
}
.faq-item.open .faq-answer{
  max-height:300px;
}

/* ========== CTA Form ========== */
.cta-section{
  background:var(--color-primary-deep);
  padding:104px 0;
  position:relative;
  overflow:hidden;
}
.cta-section::before{
  content:'';
  position:absolute;
  top:-120px;right:-120px;
  width:400px;height:400px;
  border-radius:50%;
  background:rgba(198,161,91,0.06);
}
.cta-section::after{
  content:'';
  position:absolute;
  bottom:-80px;left:20%;
  width:300px;height:300px;
  border-radius:50%;
  background:rgba(14,59,56,0.4);
}
.cta-wrap{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:64px;
  align-items:center;
}
.cta-left .kicker{
  display:inline-block;
  font-size:14px;
  font-weight:600;
  letter-spacing:0.08em;
  color:var(--color-accent);
  border-bottom:1px solid var(--color-accent);
  padding-bottom:4px;
  margin-bottom:12px;
}
.cta-left h2{
  font-family:var(--font-serif);
  font-size:34px;
  font-weight:700;
  line-height:1.25;
  color:var(--color-white);
  letter-spacing:-0.01em;
  margin-bottom:16px;
}
.cta-left p{
  font-size:16px;
  line-height:1.8;
  color:rgba(250,248,243,0.8);
  margin-bottom:28px;
  max-width:440px;
}
.cta-points li{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:15px;
  color:rgba(250,248,243,0.9);
  padding:8px 0;
}
.cta-points i{
  color:var(--color-accent);
  font-size:16px;
  flex-shrink:0;
}
.cta-form-card{
  background:var(--color-white);
  border-radius:20px;
  padding:40px;
  box-shadow:0 20px 60px rgba(0,0,0,0.25);
}
.cta-form-card h3{
  font-family:var(--font-serif);
  font-size:20px;
  font-weight:700;
  color:var(--color-text);
  margin-bottom:6px;
}
.cta-form-card .form-sub{
  font-size:14px;
  color:var(--color-text-2);
  margin-bottom:24px;
}
.form-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-bottom:16px;
}
.form-group label{
  display:block;
  font-size:14px;
  font-weight:500;
  color:var(--color-text);
  margin-bottom:6px;
}
.form-group input,
.form-group select,
.form-group textarea{
  width:100%;
  height:46px;
  border-radius:var(--radius-input);
  border:1px solid var(--color-border);
  background:var(--color-bg);
  color:var(--color-text);
  padding:0 14px;
  transition:all .25s;
}
.form-group textarea{
  height:120px;
  padding:12px 14px;
  resize:vertical;
  line-height:1.6;
}
.form-group select{
  appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235B6663' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  padding-right:36px;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus{
  border-color:var(--color-accent);
  box-shadow:0 0 0 3px rgba(198,161,91,0.18);
  background:var(--color-white);
}
.form-group input::placeholder,
.form-group textarea::placeholder{
  color:#9BA6A3;
}
.cta-form-card .btn{
  width:100%;
  margin-top:8px;
}
.form-privacy{
  font-size:12px;
  color:var(--color-text-2);
  text-align:center;
  margin-top:12px;
  line-height:1.6;
}

/* ========== Footer ========== */
.footer{
  background:var(--color-primary-deep);
  color:rgba(250,248,243,0.8);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.5fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-brand .logo-text{
  font-size:22px;
  color:var(--color-white);
  margin-bottom:16px;
}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:rgba(250,248,243,0.6);
  max-width:320px;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:var(--color-white);
  margin-bottom:16px;
}
.footer-col ul li{
  margin-bottom:10px;
}
.footer-col ul a{
  font-size:14px;
  color:rgba(250,248,243,0.7);
  transition:color .2s,padding-left .2s;
}
.footer-col ul a:hover{
  color:var(--color-accent);
  padding-left:4px;
}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:rgba(250,248,243,0.7);
  margin-bottom:12px;
}
.footer-contact i{
  color:var(--color-accent);
  width:16px;
  text-align:center;
  flex-shrink:0;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.08);
  padding:24px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.footer-bottom p{
  font-size:13px;
  color:rgba(250,248,243,0.5);
}
.footer-bottom .icp{
  font-size:12px;
}

/* ========== Reveal Animation ========== */
.reveal{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .6s ease,transform .6s ease;
}
.reveal.visible{
  opacity:1;
  transform:none;
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:0.01ms !important;
    transition-duration:0.01ms !important;
  }
  .reveal{
    opacity:1;
    transform:none;
    transition:none;
  }
  html{scroll-behavior:auto;}
}

/* ========== Responsive ========== */
@media(max-width:1024px){
  .container{max-width:960px;padding:0 20px;}
  .section{padding:80px 0;}
  .hero-inner{
    grid-template-columns:1fr;
    gap:48px;
  }
  .hero-copy h1{font-size:36px;}
  .hero-login-card{max-width:480px;}
  .metrics-card{
    grid-template-columns:repeat(2,1fr);
    gap:16px 0;
    padding:32px;
  }
  .metric-item:nth-child(2)::after{display:none;}
  .metric-item:nth-child(-n+2){border-bottom:none;}
  .services-grid{
    grid-template-columns:1fr;
    gap:40px;
  }
  .services-head{
    position:static;
  }
  .compare-wrap{grid-template-columns:1fr;}
  .latest-grid{grid-template-columns:1fr;gap:32px;}
  .cta-wrap{grid-template-columns:1fr;gap:40px;}
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:40px;
  }
}
@media(max-width:768px){
  .nav-menu,.nav-actions .nav-search,.nav-actions .nav-cta{
    display:none;
  }
  .hamburger{display:flex;}
  .header .nav-inner{height:64px;}
  .hero{padding:100px 0 100px;}
  .hero-copy h1{font-size:30px;line-height:1.3;}
  .hero-copy .hero-desc{font-size:16px;}
  .hero-points{gap:16px;flex-direction:column;}
  .metrics-card{
    grid-template-columns:1fr 1fr;
    padding:24px;
    gap:12px 0;
    border-radius:16px;
  }
  .metric-item{
    padding:12px 16px;
    text-align:center;
  }
  .metric-item::after{display:none !important;}
  .metric-num{font-size:34px;}
  .metric-label{font-size:12px;}
  .section{padding:64px 0;}
  .section-head h2{font-size:26px;}
  .service-item{
    flex-wrap:wrap;
    padding:24px 12px;
  }
  .service-item .service-main{
    flex-basis:calc(100% - 76px);
  }
  .service-item .service-link{
    display:none;
  }
  .compare-card{padding:28px;}
  .faq-question{
    padding:20px;
    font-size:16px;
    align-items:center;
  }
  .faq-answer-inner{padding:0 20px 20px;}
  .cta-form-card{padding:28px;}
  .form-row{
    grid-template-columns:1fr;
    gap:12px;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:32px;
    padding-bottom:32px;
  }
  .footer-bottom{
    flex-direction:column;
    text-align:center;
  }
}
@media(max-width:520px){
  .container{padding:0 16px;}
  .hero-copy h1{font-size:24px;}
  .hero-copy .hero-desc{font-size:15px;}
  .hero-ctas .btn{width:100%;}
  .metrics-card{
    grid-template-columns:1fr 1fr;
    padding:16px;
  }
  .metric-item{padding:12px 8px;}
  .metric-num{font-size:30px;}
  .metric-num .suffix{font-size:16px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:24px;}
  .service-item .service-main p{font-size:13px;}
  .compare-card{padding:24px;}
  .compare-card h3{font-size:19px;}
  .compare-list li{font-size:14px;}
  .featured-post .featured-cover{height:200px;}
  .featured-post .featured-body{padding:20px;}
  .featured-post .featured-body h3{font-size:18px;}
  .post-item{padding:20px 8px;}
  .post-item h4{font-size:16px;}
  .cta-left h2{font-size:26px;}
  .cta-form-card{padding:24px;}
  .btn{height:44px;padding:0 20px;}
  .login-form input{height:44px;}
}

/* roulang page: category1 */
/* ============ design tokens ============ */
:root {
  --color-primary: #0E3B38;
  --color-primary-deep: #082A27;
  --color-accent: #C6A15B;
  --color-accent-active: #A98844;
  --color-bg: #FAF8F3;
  --color-bg-alt: #EEF1EA;
  --color-text: #18211F;
  --color-text-2: #5B6663;
  --color-border: rgba(14, 59, 56, 0.12);
  --color-white: #FFFFFF;
  --color-success: #2F7D5C;
  --color-warning: #C98A2D;
  --color-error: #C25A42;
  --color-info: #3D6B8A;
  --radius-card: 16px;
  --radius-btn: 6px;
  --radius-input: 10px;
  --shadow-sm: 0 1px 2px rgba(14, 59, 56, 0.04);
  --shadow-hover: 0 12px 32px rgba(14, 59, 56, 0.10);
  --font-title: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --container: 1200px;
  --gutter: 24px;
  --section-space: 104px;
}
/* ============ reset / base ============ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5 {
  font-family: var(--font-title);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.25;
  margin-top: 0;
  margin-bottom: 0.5em;
}
h1 { font-size: 40px; }
h2 { font-size: 30px; }
h3 { font-size: 21px; }
p { margin-top: 0; margin-bottom: 1em; }
a { color: var(--color-primary); text-decoration: none; transition: color 0.25s; }
a:hover { color: var(--color-accent); }
img { max-width: 100%; display: block; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font-family: var(--font-body); cursor: pointer; }
input, textarea, select { font-family: var(--font-body); }
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}
.font-title { font-family: var(--font-title); }
.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }
.text-center { text-align: center; }
.text-secondary { color: var(--color-text-2); }

/* ============ buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 28px;
  border: none;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  transition: all 0.25s ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary-deep);
}
.btn-primary:hover {
  background: var(--color-accent-active);
  color: var(--color-primary-deep);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(198, 161, 91, 0.25);
}
.btn-primary:active { transform: translateY(1px); }
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}
.btn-outline:hover {
  background: rgba(198, 161, 91, 0.08);
  border-color: var(--color-accent);
  color: var(--color-accent-active);
}
.btn-outline-light {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.6);
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.btn-lg { height: 52px; padding: 0 36px; font-size: 16px; }

/* ============ tags & badge ============ */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  border-radius: 999px;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 500;
  border: 1px solid var(--color-border);
  letter-spacing: 0.04em;
}
.tag-accent {
  background: rgba(198, 161, 91, 0.12);
  color: var(--color-accent-active);
  border-color: rgba(198, 161, 91, 0.3);
}

/* ============ nav ============ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  transition: background 0.2s, box-shadow 0.2s, border-color 0.2s;
  background: rgba(250, 248, 243, 0.46);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
}
.header.scrolled {
  background: rgba(250, 248, 243, 0.92);
  box-shadow: 0 4px 24px rgba(14, 59, 56, 0.06);
  border-bottom-color: rgba(14, 59, 56, 0.08);
}
.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-icon {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}
.logo-text {
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 20px;
  color: var(--color-white);
  letter-spacing: 0.02em;
  transition: color 0.2s;
}
.header.scrolled .logo-text { color: var(--color-primary); }
.logo-text span { color: var(--color-accent); }
.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.header.scrolled .nav-link { color: var(--color-text); }
.nav-link:hover { color: var(--color-accent); }
.nav-link.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}
.header.scrolled .nav-link.active { color: var(--color-accent); }
.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.nav-search {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--color-white);
  font-size: 16px;
  border-radius: 8px;
  transition: background 0.2s;
}
.header.scrolled .nav-search { color: var(--color-primary); }
.nav-search:hover { background: rgba(198, 161, 91, 0.12); color: var(--color-accent); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 20px;
  background: var(--color-accent);
  color: var(--color-primary-deep);
  border: none;
  border-radius: var(--radius-btn);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}
.nav-cta:hover {
  background: var(--color-accent-active);
  color: var(--color-primary-deep);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(198, 161, 91, 0.3);
}
.header.scrolled .nav-cta { color: var(--color-primary-deep); }
.header.scrolled .nav-cta:hover { color: var(--color-primary-deep); }
.nav-burger {
  display: none;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  border-radius: 8px;
  position: relative;
  z-index: 110;
}
.nav-burger-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-white);
  margin: 5px auto;
  transition: transform 0.3s, opacity 0.3s, background 0.2s;
}
.header.scrolled .nav-burger-line { background: var(--color-primary); }
.nav-burger.open .nav-burger-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.open .nav-burger-line:nth-child(2) { opacity: 0; }
.nav-burger.open .nav-burger-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg);
  z-index: 105;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.mobile-menu.open { opacity: 1; pointer-events: auto; }
.mobile-menu a {
  font-family: var(--font-title);
  font-size: 28px;
  color: var(--color-text);
  text-decoration: none;
}
.mobile-menu a.active { color: var(--color-accent); }
.mobile-footer-info {
  position: absolute;
  bottom: 36px;
  text-align: center;
  font-size: 13px;
  color: var(--color-text-2);
}

/* ============ hero ============ */
.page-hero {
  position: relative;
  background: var(--color-primary-deep);
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  padding: 180px 0 100px;
  overflow: hidden;
  isolation: isolate;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(8, 42, 39, 0.94) 25%, rgba(8, 42, 39, 0.82) 55%, rgba(8, 42, 39, 0.55) 80%);
  z-index: -1;
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  z-index: 1;
}
.hero-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 56px;
  align-items: center;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(198, 161, 91, 0.12);
  border: 1px solid rgba(198, 161, 91, 0.3);
  border-radius: 999px;
  padding: 5px 16px;
  font-size: 13px;
  color: var(--color-accent);
  margin-bottom: 24px;
}
.hero-tag i { font-size: 12px; }
.hero-title {
  font-size: 44px;
  color: var(--color-white);
  margin-bottom: 18px;
  line-height: 1.2;
}
.hero-title span { color: var(--color-accent); }
.hero-desc {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.8;
  max-width: 520px;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-card {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 28px;
}
.hero-card-title {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
}
.hero-card-title i { color: var(--color-accent); }
.status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.78);
}
.status-row:last-child { border-bottom: none; }
.status-label { display: flex; align-items: center; gap: 8px; }
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 0 3px rgba(47, 125, 92, 0.2);
}

/* ============ breadcrumb ============ */
.breadcrumb {
  padding: 24px 0 0;
  font-size: 13px;
  color: var(--color-text-2);
}
.breadcrumb a { color: var(--color-text-2); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb .sep { margin: 0 8px; color: rgba(255,255,255,0.4); }
.breadcrumb .current { color: rgba(255,255,255,0.9); }

/* ============ sections ============ */
.section { padding: var(--section-space) 0; }
.section-alt { background: var(--color-bg-alt); }
.section-head {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 48px;
  align-items: end;
  margin-bottom: 56px;
}
.section-head h2 { margin-bottom: 8px; }
.section-head p { color: var(--color-text-2); margin-bottom: 0; }
.section-head-right { text-align: right; }

/* ============ capability list ============ */
.capability-layout {
  display: grid;
  grid-template-columns: 4fr 8fr;
  gap: 60px;
}
.capability-sticky {
  position: sticky;
  top: 100px;
  align-self: start;
}
.capability-sticky h2 { font-size: 32px; margin-bottom: 14px; }
.capability-sticky p { color: var(--color-text-2); margin-bottom: 24px; }
.capability-list { display: flex; flex-direction: column; }
.capability-item {
  display: flex;
  gap: 24px;
  padding: 30px 16px;
  border-bottom: 1px solid var(--color-border);
  transition: background 0.3s, padding-left 0.3s;
  cursor: default;
}
.capability-item:first-child { border-top: 1px solid var(--color-border); }
.capability-item:hover {
  background: rgba(238, 241, 234, 0.5);
  padding-left: 24px;
}
.capability-num {
  font-family: var(--font-title);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
  line-height: 1.4;
  min-width: 44px;
}
.capability-body h3 { font-size: 19px; margin-bottom: 6px; }
.capability-body p { color: var(--color-text-2); font-size: 15px; margin-bottom: 0; }
.capability-link {
  margin-top: 10px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  color: var(--color-primary);
  text-decoration: none;
  transition: gap 0.25s;
}
.capability-link:hover { gap: 8px; color: var(--color-accent); }

/* ============ flow section ============ */
.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.flow-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px 26px;
  transition: all 0.3s ease;
  position: relative;
}
.flow-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: var(--color-accent);
}
.flow-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 18px;
  border: 1px solid var(--color-border);
}
.flow-card h3 { font-size: 18px; margin-bottom: 10px; }
.flow-card p { font-size: 14px; color: var(--color-text-2); margin-bottom: 0; }

/* ============ compare ============ */
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.compare-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 36px;
}
.compare-card.highlight {
  border-color: var(--color-accent);
  box-shadow: 0 8px 30px rgba(198, 161, 91, 0.15);
  position: relative;
}
.compare-card.highlight::before {
  content: '推荐方案';
  position: absolute;
  top: -1px;
  right: 24px;
  background: var(--color-accent);
  color: var(--color-primary-deep);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 0 0 8px 8px;
}
.compare-card h3 {
  font-size: 20px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}
.compare-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.6;
}
.compare-list i {
  margin-top: 5px;
  font-size: 14px;
  flex-shrink: 0;
}
.compare-list .fa-circle-check { color: var(--color-success); }
.compare-list .fa-circle-xmark { color: var(--color-error); }
.compare-bar {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px dashed var(--color-border);
}
.compare-bar-label {
  font-size: 13px;
  color: var(--color-text-2);
  margin-bottom: 10px;
}
.compare-bar-track {
  height: 8px;
  border-radius: 999px;
  background: var(--color-bg-alt);
  overflow: hidden;
}
.compare-bar-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--color-accent);
}
.bar-normal { width: 68%; background: var(--color-border); }
.bar-fast { width: 95%; }

/* ============ scenario ============ */
.scenario-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 56px;
  align-items: center;
}
.scenario-img { border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-hover); }
.scenario-img img { width: 100%; height: 100%; object-fit: cover; min-height: 380px; }
.scenario-list { display: flex; flex-direction: column; gap: 8px; }
.scenario-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  padding: 20px 8px;
  border-bottom: 1px solid var(--color-border);
  transition: background 0.25s;
}
.scenario-item:hover { background: var(--color-bg-alt); }
.scenario-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(198, 161, 91, 0.12);
  color: var(--color-accent-active);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
}
.scenario-item h3 { font-size: 17px; margin-bottom: 4px; }
.scenario-item p { font-size: 14px; color: var(--color-text-2); margin-bottom: 0; line-height: 1.7; }

/* ============ FAQ ============ */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-item:last-child { border-bottom: none; }
.faq-item.open { background: rgba(238, 241, 234, 0.3); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 24px 30px;
  background: none;
  border: none;
  font-size: 17px;
  font-weight: 500;
  color: var(--color-text);
  font-family: var(--font-body);
  text-align: left;
  transition: background 0.2s;
  gap: 16px;
}
.faq-question:hover { background: rgba(238, 241, 234, 0.4); }
.faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
  font-size: 16px;
}
.faq-item.open .faq-icon { transform: rotate(135deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
  padding: 0 30px;
}
.faq-item.open .faq-answer {
  max-height: 600px;
  padding: 0 30px 24px;
}
.faq-answer p {
  font-size: 15px;
  color: var(--color-text-2);
  line-height: 1.8;
  margin-bottom: 0;
}

/* ============ CTA ============ */
.cta-section {
  background: var(--color-primary-deep);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: 80px 0;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.2;
  z-index: -1;
}
.cta-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 48px;
  align-items: center;
}
.cta-section h2 { color: var(--color-white); font-size: 32px; margin-bottom: 14px; }
.cta-section p { color: rgba(255, 255, 255, 0.78); margin-bottom: 24px; }

/* ============ footer ============ */
.footer {
  background: var(--color-primary-deep);
  color: rgba(255, 255, 255, 0.78);
  padding: 72px 0 28px;
  font-size: 14px;
}
.logo-text-footer {
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 22px;
  color: var(--color-white);
  letter-spacing: 0.02em;
}
.logo-text-footer span { color: var(--color-accent); }
.footer-grid {
  display: grid;
  grid-template-columns: 4fr 2fr 3fr 3fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p { color: rgba(255, 255, 255, 0.65); line-height: 1.8; margin-top: 16px; }
.footer-col h4 {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { color: rgba(255, 255, 255, 0.65); transition: color 0.2s; }
.footer-col a:hover { color: var(--color-accent); }
.footer-contact li { display: flex; align-items: center; gap: 10px; color: rgba(255, 255, 255, 0.65); }
.footer-contact i { color: var(--color-accent); width: 14px; text-align: center; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
}
.footer-bottom p { margin: 0; }

/* ============ inner links ============ */
.inner-links {
  background: var(--color-bg-alt);
  padding: 48px 0;
}
.inner-links-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.inner-link-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px 28px;
  transition: all 0.3s ease;
  text-decoration: none;
}
.inner-link-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.inner-link-card h3 { font-size: 17px; margin-bottom: 4px; color: var(--color-text); }
.inner-link-card p { font-size: 14px; color: var(--color-text-2); margin: 0; }
.inner-link-card .fa-arrow-right { color: var(--color-accent); transition: transform 0.25s; }
.inner-link-card:hover .fa-arrow-right { transform: translateX(5px); }

/* ============ responsive ============ */
@media (max-width: 1279px) {
  .hero-grid { gap: 40px; }
  .hero-title { font-size: 38px; }
  .capability-layout { gap: 36px; }
  .section-head { grid-template-columns: 1fr; gap: 12px; }
  .section-head-right { text-align: left; }
}
@media (max-width: 1023px) {
  :root { --section-space: 72px; }
  h1 { font-size: 34px; }
  h2 { font-size: 26px; }
  .nav-menu { display: none; }
  .nav-right .nav-search, .nav-right .nav-cta { display: none; }
  .nav-burger { display: block; }
  .mobile-menu { display: flex; }
  .hero-grid { grid-template-columns: 1fr; }
  .page-hero { padding: 140px 0 72px; }
  .hero-card { max-width: 480px; }
  .capability-layout { grid-template-columns: 1fr; }
  .capability-sticky { position: static; }
  .flow-grid { grid-template-columns: 2fr 2fr; }
  .compare-grid { grid-template-columns: 1fr; }
  .scenario-grid { grid-template-columns: 1fr; }
  .scenario-img img { min-height: 260px; }
  .cta-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .inner-links-grid { grid-template-columns: 1fr; }
}
@media (max-width: 767px) {
  :root { --section-space: 56px; }
  h1 { font-size: 30px; }
  h2 { font-size: 24px; }
  .container { padding: 0 20px; }
  .hero-title { font-size: 30px; }
  .hero-desc { font-size: 15px; }
  .flow-grid { grid-template-columns: 1fr; }
  .compare-grid { grid-template-columns: 1fr; }
  .compare-card { padding: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-section { padding: 56px 0; }
  .btn { height: 44px; padding: 0 22px; font-size: 14px; }
  .btn-lg { height: 48px; padding: 0 28px; }
}
@media (max-width: 520px) {
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .capability-item { gap: 14px; padding: 22px 10px; }
  .capability-num { font-size: 18px; min-width: 32px; }
  .faq-question { padding: 20px 18px; font-size: 15px; }
  .faq-answer { padding: 0 18px; }
  .faq-item.open .faq-answer { padding: 0 18px 20px; }
}

/* ============ animations ============ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in { opacity: 0; }
.animate-in.visible { animation: fadeUp 0.6s ease forwards; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .animate-in { opacity: 1; transform: none; }
}

/* roulang page: article */
:root {
    --color-primary: #0E3B38;
    --color-primary-deep: #082A27;
    --color-accent: #C6A15B;
    --color-accent-active: #A98844;
    --color-bg: #FAF8F3;
    --color-bg-alt: #EEF1EA;
    --color-text: #18211F;
    --color-text-2: #5B6663;
    --color-border: rgba(14, 59, 56, 0.12);
    --color-white: #FFFFFF;
    --radius-card: 16px;
    --radius-btn: 6px;
    --radius-input: 10px;
    --radius-tag: 999px;
    --shadow-sm: 0 1px 2px rgba(14, 59, 56, 0.04);
    --shadow-lg: 0 12px 32px rgba(14, 59, 56, 0.10);
    --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
    --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    --container: 1200px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.75;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--color-accent); }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; font-size: 15px; }
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 46px;
    padding: 0 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-btn);
    border: 1px solid transparent;
    transition: all .25s ease;
    white-space: nowrap;
}
.btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}
.btn-primary {
    background: var(--color-accent);
    color: var(--color-primary-deep);
    border-color: var(--color-accent);
}
.btn-primary:hover {
    background: var(--color-accent-active);
    border-color: var(--color-accent-active);
    color: var(--color-primary-deep);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(198, 161, 91, 0.28);
}
.btn-primary:active { transform: translateY(1px); box-shadow: none; }
.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-outline:hover {
    background: rgba(198, 161, 91, 0.08);
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-1px);
}
.btn-outline:active { transform: translateY(1px); }
.btn-sm { height: 40px; padding: 0 20px; font-size: 14px; }
.tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    background: var(--color-bg-alt);
    color: var(--color-primary);
    font-size: 12px;
    line-height: 1;
    border-radius: var(--radius-tag);
    border: 1px solid var(--color-border);
    white-space: nowrap;
    transition: background .2s, border-color .2s;
}
.tag:hover { border-color: var(--color-accent); background: rgba(198, 161, 91, 0.08); }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .5s ease, transform .5s ease; }
.reveal.revealed { opacity: 1; transform: none; }

/* ===== Header ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(8, 42, 39, 0.46);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
    transition: background .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.site-header.scrolled {
    background: rgba(250, 248, 243, 0.92);
    border-bottom-color: var(--color-border);
    box-shadow: 0 4px 24px rgba(14, 59, 56, 0.08);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.logo-mark {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.logo-text {
    font-family: var(--font-serif);
    font-size: 21px;
    font-weight: 900;
    letter-spacing: -0.01em;
    color: var(--color-white);
    transition: color .2s;
}
.logo-accent { color: var(--color-accent); }
.site-header.scrolled .logo-text { color: var(--color-primary); }
.nav-menu {
    display: flex;
    align-items: center;
    gap: 36px;
}
.nav-link {
    position: relative;
    font-size: 14px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.86);
    padding: 6px 2px;
    transition: color .2s;
}
.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 100%;
    bottom: -2px;
    height: 2px;
    background: var(--color-accent);
    transition: right .3s ease;
}
.nav-link:hover { color: var(--color-accent); }
.nav-link:hover::after { right: 0; }
.nav-link.active { color: var(--color-accent); }
.nav-link.active::after { right: 0; }
.site-header.scrolled .nav-link { color: var(--color-primary); }
.site-header.scrolled .nav-link:hover,
.site-header.scrolled .nav-link.active { color: var(--color-accent); }
.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}
.search-toggle {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    color: var(--color-white);
    font-size: 15px;
    transition: all .25s;
}
.search-toggle:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-1px);
}
.site-header.scrolled .search-toggle {
    border-color: var(--color-border);
    color: var(--color-primary);
}
.site-header.scrolled .search-toggle:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 8px;
}
.mobile-toggle .bar {
    width: 24px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: transform .3s ease, opacity .3s ease;
}
.mobile-toggle { color: var(--color-white); }
.site-header.scrolled .mobile-toggle { color: var(--color-primary); }
.mobile-toggle.active .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.active .bar:nth-child(2) { opacity: 0; }
.mobile-toggle.active .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.search-overlay {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: 20px 0;
    display: none;
    box-shadow: var(--shadow-sm);
}
.search-overlay.open { display: block; }
.search-box {
    display: flex;
    gap: 12px;
    max-width: 640px;
    margin: 0 auto;
    padding: 0 24px;
}
.search-box input {
    flex: 1;
    height: 46px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-input);
    padding: 0 16px;
    font-size: 15px;
    background: var(--color-bg);
    transition: border-color .2s, box-shadow .2s;
}
.search-box input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(198, 161, 91, 0.18);
}
.search-box button {
    width: 46px;
    height: 46px;
    background: var(--color-accent);
    border: none;
    border-radius: var(--radius-btn);
    color: var(--color-primary-deep);
    font-size: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background .2s, transform .2s;
}
.search-box button:hover {
    background: var(--color-accent-active);
    transform: translateX(2px);
}

/* ===== Mobile Menu ===== */
.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 98;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity .3s ease, visibility .3s ease;
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu-inner {
    display: flex;
    flex-direction: column;
    gap: 6px;
    text-align: center;
    padding: 24px;
}
.mobile-link {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 700;
    color: var(--color-primary);
    padding: 12px 28px;
    border-radius: 12px;
    transition: background .2s, color .2s;
}
.mobile-link:hover { background: var(--color-bg-alt); color: var(--color-accent); }
.mobile-link.active { color: var(--color-accent); }
.mobile-menu-footer {
    margin-top: 36px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}
.mobile-menu-footer p { font-size: 14px; color: var(--color-text-2); }

/* ===== Article Hero ===== */
.article-hero {
    position: relative;
    padding: 176px 0 112px;
    background:
        linear-gradient(140deg, rgba(8, 42, 39, 0.94) 0%, rgba(14, 59, 56, 0.82) 55%, rgba(8, 42, 39, 0.90) 100%),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    color: var(--color-white);
}
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 28px;
}
.breadcrumb a { color: rgba(255, 255, 255, 0.75); transition: color .2s; }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb .current { color: rgba(255, 255, 255, 0.95); }
.article-hero h1 {
    font-family: var(--font-serif);
    font-size: 40px;
    font-weight: 900;
    line-height: 1.25;
    letter-spacing: -0.02em;
    max-width: 860px;
    margin: 0 0 20px;
    color: var(--color-white);
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 28px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.72);
}
.article-meta .meta-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.article-meta i { color: var(--color-accent); }

/* ===== Article Main ===== */
.article-main {
    position: relative;
    z-index: 2;
    margin-top: -56px;
    padding-bottom: 96px;
}
.article-layout {
    max-width: 960px;
    margin: 0 auto;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    box-shadow: var(--shadow-sm);
    padding: 56px;
}
.article-card { width: 100%; }

/* ===== Article Body ===== */
.article-body {
    font-size: 17px;
    line-height: 1.9;
    color: var(--color-text);
    max-width: 760px;
    margin: 0 auto;
}
.article-body h2 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--color-primary);
    margin: 48px 0 20px;
    padding-top: 8px;
}
.article-body h3 {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 700;
    color: var(--color-primary);
    margin: 36px 0 16px;
}
.article-body h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
    margin: 28px 0 12px;
}
.article-body p { margin-bottom: 28px; }
.article-body a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: rgba(198, 161, 91, 0.60);
    transition: color .2s;
}
.article-body a:hover { color: var(--color-accent); text-decoration-color: var(--color-accent); }
.article-body ul,
.article-body ol {
    margin-bottom: 28px;
    padding-left: 24px;
}
.article-body li { margin-bottom: 8px; }
.article-body li::marker { color: var(--color-accent); }
.article-body blockquote {
    border-left: 3px solid var(--color-accent);
    background: rgba(198, 161, 91, 0.06);
    padding: 20px 24px;
    border-radius: 0 12px 12px 0;
    margin: 32px 0;
    color: var(--color-text-2);
    font-style: italic;
}
.article-body blockquote p { margin-bottom: 0; }
.article-body img {
    max-width: 100%;
    border-radius: 12px;
    margin: 32px 0;
    display: block;
}
.article-body figure { margin: 32px 0; }
.article-body figcaption {
    font-size: 13px;
    color: var(--color-text-2);
    text-align: center;
    margin-top: 8px;
}
.article-body code {
    background: var(--color-bg-alt);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 0.9em;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
.article-body pre {
    background: var(--color-primary-deep);
    color: #E8E4D8;
    padding: 24px;
    border-radius: 12px;
    overflow-x: auto;
    margin: 32px 0;
    line-height: 1.7;
    font-size: 14px;
}
.article-body pre code { background: none; padding: 0; }
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 32px 0;
    font-size: 15px;
}
.article-body th,
.article-body td {
    border: 1px solid var(--color-border);
    padding: 12px 16px;
    text-align: left;
}
.article-body th { background: var(--color-bg-alt); font-weight: 600; }
.article-body hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 40px 0;
}

/* ===== Article Footer Block ===== */
.article-footer-block {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    padding-top: 32px;
    margin-top: 40px;
    border-top: 1px solid var(--color-border);
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
}
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.article-share {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--color-text-2);
}
.article-share a {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--color-bg-alt);
    color: var(--color-primary);
    font-size: 15px;
    transition: all .25s;
}
.article-share a:hover {
    background: var(--color-accent);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(198, 161, 91, 0.30);
}

/* ===== Related Posts ===== */
.related-posts {
    max-width: 960px;
    margin: 56px auto 0;
}
.related-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}
.related-head h2 {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 900;
    color: var(--color-primary);
    letter-spacing: -0.01em;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.related-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    overflow: hidden;
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}
.related-card img {
    width: 100%;
    height: 168px;
    object-fit: cover;
    transition: transform .4s ease;
}
.related-card:hover img { transform: scale(1.03); }
.related-card-body { padding: 20px 20px 22px; }
.related-card-body h3 {
    font-family: var(--font-serif);
    font-size: 17px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--color-text);
    margin-bottom: 10px;
    transition: color .2s;
}
.related-card:hover .related-card-body h3 { color: var(--color-accent); }
.related-date {
    font-size: 13px;
    color: var(--color-text-2);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.related-date i { font-size: 12px; }

/* ===== Article Nav Bottom ===== */
.article-nav-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    max-width: 960px;
    margin: 40px auto 0;
}
.back-list-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-2);
    transition: color .2s, transform .2s;
}
.back-list-link:hover { color: var(--color-accent); transform: translateX(-4px); }

/* ===== Article Not Found ===== */
.article-not-found {
    max-width: 560px;
    margin: 0 auto;
    text-align: center;
    padding: 48px 24px;
}
.not-found-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-alt);
    border-radius: 50%;
    font-size: 32px;
    color: var(--color-accent);
}
.article-not-found h2 {
    font-family: var(--font-serif);
    font-size: 26px;
    color: var(--color-primary);
    margin-bottom: 12px;
}
.article-not-found p {
    font-size: 15px;
    color: var(--color-text-2);
    margin-bottom: 28px;
}

/* ===== Footer ===== */
.footer {
    background: var(--color-primary-deep);
    color: rgba(250, 248, 243, 0.82);
    padding: 72px 0 28px;
}
.footer .container { max-width: 1200px; }
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand .logo-text {
    color: var(--color-white);
    font-size: 24px;
    margin-bottom: 16px;
}
.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(250, 248, 243, 0.60);
    max-width: 300px;
}
.footer-col h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: 18px;
    letter-spacing: 0.04em;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a {
    font-size: 14px;
    color: rgba(250, 248, 243, 0.62);
    transition: color .2s, padding-left .2s;
}
.footer-col a:hover {
    color: var(--color-accent);
    padding-left: 4px;
}
.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(250, 248, 243, 0.62);
}
.footer-contact i { color: var(--color-accent); width: 16px; text-align: center; }
.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 24px;
    font-size: 13px;
    color: rgba(250, 248, 243, 0.45);
}
.footer-bottom .icp { font-size: 13px; }

/* ===== Responsive ===== */
@media (max-width: 1023px) {
    .nav-menu { display: none; }
    .header-actions .btn-primary { display: none; }
    .mobile-toggle { display: flex; }
    .article-hero { padding: 140px 0 88px; }
    .article-hero h1 { font-size: 32px; }
    .article-layout { padding: 40px 28px; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 767px) {
    .container { padding: 0 20px; }
    .article-hero { padding: 120px 0 72px; }
    .article-hero h1 { font-size: 26px; line-height: 1.3; }
    .article-meta { gap: 6px 16px; font-size: 13px; }
    .article-main { margin-top: -32px; padding-bottom: 64px; }
    .article-layout { padding: 28px 20px; border-radius: 16px; }
    .article-body { font-size: 16px; line-height: 1.85; }
    .article-body h2 { font-size: 22px; margin-top: 32px; }
    .article-body h3 { font-size: 19px; margin-top: 28px; }
    .article-footer-block { flex-direction: column; align-items: flex-start; }
    .article-share { align-self: flex-start; }
    .related-grid { grid-template-columns: 1fr; }
    .related-card img { height: 180px; }
    .article-nav-bottom { flex-direction: column; align-items: flex-start; }
    .footer { padding: 48px 0 24px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .search-box { padding: 0 20px; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .reveal { opacity: 1; transform: none; }
}

/* roulang page: category2 */
/* ============ 1. 设计变量 ============ */
:root {
  --color-primary: #0E3B38;
  --color-primary-deep: #082A27;
  --color-accent: #C6A15B;
  --color-accent-active: #A98844;
  --color-bg: #FAF8F3;
  --color-bg-alt: #EEF1EA;
  --color-text: #18211F;
  --color-text-2: #5B6663;
  --color-border: rgba(14, 59, 56, 0.12);
  --color-white: #FFFFFF;
  --color-success: #2F7D5C;
  --color-warning: #C98A2D;
  --color-error: #C25A42;
  --color-info: #3D6B8A;
  --radius-card: 16px;
  --radius-btn: 6px;
  --radius-input: 10px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 2px rgba(14,59,56,0.04);
  --shadow-hover: 0 12px 32px rgba(14,59,56,0.10);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --section-gap: 100px;
  --container-w: 1200px;
  --transition: 0.25s ease;
}
@media (max-width: 1023px) { :root { --section-gap: 72px; } }
@media (max-width: 767px) { :root { --section-gap: 56px; } }

/* ============ 2. Reset & Base ============ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent); }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; background: none; }
button { cursor: pointer; }
section { padding: var(--section-gap) 0; }

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow { max-width: 760px; margin: 0 auto; }

/* ============ 3. 通用排版 ============ */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--color-text);
}
h1 { font-size: 40px; }
h2 { font-size: 32px; margin-bottom: 10px; }
h3 { font-size: 21px; }
p { color: var(--color-text-2); }

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-active);
  border-bottom: 1px solid rgba(198,161,91,0.5);
  padding-bottom: 4px;
  margin-bottom: 16px;
}
.section-header {
  margin-bottom: 48px;
  max-width: 560px;
}
.section-header p { font-size: 16px; margin-top: 8px; }

/* ============ 4. 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 30px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  transition: all var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
  letter-spacing: 0.01em;
}
.btn:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.btn-primary {
  background: var(--color-accent);
  color: #1A1A18;
}
.btn-primary:hover {
  background: var(--color-accent-active);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(198,161,91,0.35);
}
.btn-primary:active { transform: translateY(1px); box-shadow: none; }
.btn-outline { border-color: var(--color-primary); color: var(--color-primary); background: transparent; }
.btn-outline:hover { background: rgba(198,161,91,0.08); border-color: var(--color-accent); color: var(--color-accent); }
.btn-outline-light { border-color: rgba(250,248,243,0.6); color: #FAF8F3; background: transparent; }
.btn-outline-light:hover { background: rgba(250,248,243,0.12); border-color: #FAF8F3; color: #FAF8F3; }
.btn-sm { height: 40px; padding: 0 20px; font-size: 14px; }
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--color-accent-active);
  transition: gap var(--transition);
}
.text-link:hover { gap: 10px; color: var(--color-accent-active); }
.text-link i { font-size: 12px; }

/* ============ 5. 标签 / 徽章 ============ */
.badge {
  display: inline-block;
  padding: 3px 12px;
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius-pill);
  background: var(--color-bg-alt);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
}
.badge-accent {
  background: rgba(198,161,91,0.12);
  color: var(--color-accent-active);
  border-color: rgba(198,161,91,0.25);
}

/* ============ 6. 导航 ============ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(8,42,39,0.55);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid rgba(255,255,255,0.12);
  transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.site-header.scrolled {
  background: rgba(250,248,243,0.94);
  box-shadow: 0 4px 24px rgba(14,59,56,0.08);
  border-bottom-color: var(--color-border);
}
.nav-container { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.brand-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-active) 100%);
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(198,161,91,0.35);
}
.logo-mark svg { width: 20px; height: 20px; fill: #1A1A18; }
.logo-text {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: #FAF8F3;
  letter-spacing: 0.02em;
  transition: color 0.3s;
}
.logo-accent { color: var(--color-accent); }
.site-header.scrolled .logo-text { color: var(--color-text); }
.site-header.scrolled .logo-accent { color: var(--color-accent-active); }

.nav-menu { display: flex; align-items: center; gap: 6px; }
.nav-link {
  position: relative;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(250,248,243,0.85);
  border-radius: var(--radius-btn);
  transition: color 0.25s, background 0.25s;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 16px; right: 16px; bottom: 2px;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.nav-link:hover { color: var(--color-accent); }
.nav-link.active { color: var(--color-accent); }
.nav-link.active::after { transform: scaleX(1); }
.site-header.scrolled .nav-link { color: var(--color-text); }
.site-header.scrolled .nav-link:hover { color: var(--color-accent); }
.site-header.scrolled .nav-link.active { color: var(--color-accent-active); }

.nav-actions { display: flex; align-items: center; gap: 14px; }
.search-toggle {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  color: rgba(250,248,243,0.9);
  border-radius: 50%;
  font-size: 16px;
  transition: color 0.25s, background 0.25s;
}
.search-toggle:hover { color: var(--color-accent); background: rgba(255,255,255,0.08); }
.site-header.scrolled .search-toggle { color: var(--color-primary); }
.site-header.scrolled .search-toggle:hover { background: rgba(14,59,56,0.06); }
.search-toggle:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  position: relative;
  align-items: center; justify-content: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: "";
  display: block;
  width: 20px; height: 2px;
  background: rgba(250,248,243,0.9);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.nav-toggle span { position: relative; }
.nav-toggle span::before { position: absolute; top: -6px; left: 0; }
.nav-toggle span::after { position: absolute; top: 6px; left: 0; }
.site-header.scrolled .nav-toggle span,
.site-header.scrolled .nav-toggle span::before,
.site-header.scrolled .nav-toggle span::after { background: var(--color-primary); }
.nav-toggle.open span { background: transparent; }
.nav-toggle.open span::before { top: 0; transform: rotate(45deg); }
.nav-toggle.open span::after { top: 0; transform: rotate(-45deg); }
.nav-toggle:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

/* 搜索面板 */
.search-panel {
  position: absolute;
  top: 74px; left: 0; right: 0;
  background: rgba(250,248,243,0.98);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 12px 30px rgba(14,59,56,0.08);
  padding: 16px 24px;
  display: none;
  backdrop-filter: blur(18px);
  z-index: 999;
}
.search-panel.open { display: block; }
.search-panel form { max-width: 680px; margin: 0 auto; display: flex; gap: 10px; }
.search-panel input {
  flex: 1;
  height: 44px;
  padding: 0 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-input);
  font-size: 15px;
  background: #fff;
}
.search-panel input:focus { border-color: var(--color-accent); box-shadow: 0 0 0 3px rgba(198,161,91,0.18); }
.search-panel button {
  height: 44px;
  padding: 0 22px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-btn);
  font-size: 14px;
  font-weight: 600;
  transition: background 0.25s;
}
.search-panel button:hover { background: var(--color-accent); }

/* 移动端菜单 */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--color-bg);
  z-index: 999;
  padding: 100px 40px 40px;
  overflow-y: auto;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.mobile-menu.open { opacity: 1; pointer-events: auto; }
.mobile-menu a.mobile-link {
  display: block;
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 700;
  padding: 16px 0;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}
.mobile-menu a.mobile-link.active { color: var(--color-accent-active); }
.mobile-menu-contact { margin-top: 40px; color: var(--color-text-2); font-size: 14px; line-height: 2; }

/* ============ 7. 面包屑 ============ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(250,248,243,0.7);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.breadcrumb a { color: rgba(250,248,243,0.7); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb .sep { opacity: 0.5; }
.breadcrumb span.current { color: rgba(250,248,243,0.95); }

/* ============ 8. 分类页 Hero ============ */
.page-hero {
  position: relative;
  padding: 160px 0 80px;
  background-image: linear-gradient(to right, rgba(8,42,39,0.92), rgba(14,59,56,0.72)), url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  color: #FAF8F3;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute;
  bottom: -60px;
  left: 0; right: 0;
  height: 120px;
  background: linear-gradient(to bottom, transparent, var(--color-bg));
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero-content { max-width: 720px; }
.hero-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  border: 1px solid rgba(198,161,91,0.5);
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
  background: rgba(198,161,91,0.08);
}
.page-hero h1 {
  font-size: 42px;
  font-weight: 900;
  color: #FAF8F3;
  margin-bottom: 16px;
  line-height: 1.2;
}
.page-hero-subtitle {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(250,248,243,0.85);
  margin-bottom: 32px;
  max-width: 520px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ============ 9. 指标面板 ============ */
.metrics-section { padding-top: 0; margin-top: -30px; position: relative; z-index: 3; padding-bottom: 0; }
.metrics-panel {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
  padding: 40px 48px;
}
.metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.metric-item { text-align: left; position: relative; }
.metric-item:not(:last-child)::after {
  content: "";
  position: absolute;
  right: -16px; top: 10%; bottom: 10%;
  width: 1px;
  background: var(--color-border);
}
.metric-num {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 900;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  display: block;
}
.metric-label { font-size: 13px; color: var(--color-text-2); margin-top: 4px; display: block; }
.metric-trend {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--color-success);
  margin-top: 6px;
}
.metric-trend i { font-size: 10px; }

/* ============ 10. 服务矩阵 ============ */
.matrix-section { background: var(--color-bg-alt); }
.matrix-grid { display: grid; grid-template-columns: 4fr 8fr; gap: 48px; }
.matrix-heading { position: sticky; top: 100px; align-self: start; }
.matrix-heading h2 { font-size: 34px; }
.matrix-heading p { margin: 16px 0 24px; font-size: 15px; line-height: 1.8; }
.matrix-list { display: flex; flex-direction: column; }
.matrix-item {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid var(--color-border);
  transition: background 0.3s, padding-left 0.3s;
  cursor: default;
}
.matrix-item:first-child { border-top: 1px solid var(--color-border); }
.matrix-item:hover { padding-left: 12px; background: rgba(255,255,255,0.5); }
.matrix-index {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-accent-active);
  flex-shrink: 0;
  width: 40px;
  line-height: 1.4;
}
.matrix-body { flex: 1; }
.matrix-body h3 { font-size: 18px; margin-bottom: 4px; }
.matrix-body p { font-size: 14px; color: var(--color-text-2); line-height: 1.7; }
.matrix-link {
  margin-top: 8px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: var(--color-accent-active);
  transition: gap 0.25s;
}
.matrix-item:hover .matrix-link { gap: 8px; }
.matrix-link i { font-size: 11px; }

/* ============ 11. 适用场景 ============ */
.scenarios-heading { margin-bottom: 40px; }
.scenarios-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 48px; align-items: center; }
.scenario-media {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  position: relative;
}
.scenario-media img { width: 100%; height: 380px; object-fit: cover; }
.scenario-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8,42,39,0.3), transparent);
}
.scenario-list { display: flex; flex-direction: column; gap: 20px; }
.scenario-item {
  display: flex;
  gap: 20px;
  padding: 24px 28px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}
.scenario-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-accent);
}
.scenario-icon {
  width: 46px; height: 46px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(198,161,91,0.12);
  color: var(--color-accent-active);
  border-radius: 12px;
  font-size: 18px;
}
.scenario-item h3 { font-size: 17px; margin-bottom: 4px; }
.scenario-item p { font-size: 14px; line-height: 1.7; }

/* ============ 12. 接入流程 ============ */
.process-section { background: var(--color-bg-alt); }
.process-header { text-align: center; margin-bottom: 56px; }
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.process-step {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px 24px;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  position: relative;
}
.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-accent);
}
.process-step-num {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 900;
  color: rgba(198,161,91,0.35);
  line-height: 1;
  display: block;
  margin-bottom: 16px;
}
.process-step h3 { font-size: 16px; margin-bottom: 8px; }
.process-step p { font-size: 14px; color: var(--color-text-2); line-height: 1.7; }

/* ============ 13. FAQ ============ */
.faq-content { max-width: 800px; margin: 0 auto; }
.faq-header { text-align: center; margin-bottom: 48px; }
.faq-list {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-item:last-child { border-bottom: none; }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 28px;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  transition: background 0.25s;
  font-family: var(--font-sans);
}
.faq-question:hover { background: rgba(238,241,234,0.5); }
.faq-question:focus-visible { outline: 2px solid var(--color-accent); outline-offset: -2px; }
.faq-icon {
  flex-shrink: 0;
  width: 28px; height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  font-size: 14px;
  color: var(--color-primary);
  transition: transform 0.3s, background 0.3s, color 0.3s;
}
.faq-item.active .faq-icon { transform: rotate(45deg); background: var(--color-accent); border-color: var(--color-accent); color: #fff; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 28px;
}
.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 28px 20px;
}
.faq-answer p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-2);
  border-left: 2px solid var(--color-accent);
  padding-left: 16px;
}

/* ============ 14. CTA ============ */
.cta-section {
  position: relative;
  background-image: linear-gradient(to right, rgba(8,42,39,0.94), rgba(14,59,56,0.82)), url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
  padding: 90px 0;
  text-align: center;
  color: #FAF8F3;
}
.cta-inner { max-width: 640px; margin: 0 auto; }
.cta-inner h2 {
  font-family: var(--font-serif);
  font-size: 34px;
  color: #FAF8F3;
  margin-bottom: 16px;
}
.cta-inner p {
  color: rgba(250,248,243,0.8);
  font-size: 16px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ============ 15. 页脚 ============ */
.footer {
  background: var(--color-primary-deep);
  color: rgba(250,248,243,0.75);
  padding: 64px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 3fr 2fr 2fr 3fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand .logo-text { font-size: 24px; color: #FAF8F3; margin-bottom: 12px; display: block; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(250,248,243,0.6); margin-top: 12px; }
.footer-col h4 {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: #FAF8F3;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul a {
  color: rgba(250,248,243,0.6);
  font-size: 14px;
  transition: color 0.25s, padding-left 0.25s;
}
.footer-col ul a:hover { color: var(--color-accent); padding-left: 4px; }
.footer-contact li { font-size: 14px; color: rgba(250,248,243,0.6); display: flex; align-items: center; gap: 10px; }
.footer-contact li i { color: var(--color-accent); width: 16px; text-align: center; font-size: 13px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(250,248,243,0.5);
}
.footer-bottom .icp { letter-spacing: 0.02em; }

/* ============ 16. 动效 ============ */
[data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-animate].visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
  [data-animate] { opacity: 1; transform: none; }
  .matrix-item:hover { padding-left: 0; }
  .scenario-item:hover, .process-step:hover { transform: none; }
}

/* ============ 17. 响应式 ============ */
@media (max-width: 1023px) {
  h1 { font-size: 34px; }
  h2 { font-size: 28px; }
  .page-hero { padding: 140px 0 64px; }
  .page-hero h1 { font-size: 36px; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 24px 32px; }
  .metric-item:nth-child(2)::after { display: none; }
  .matrix-grid { grid-template-columns: 1fr; gap: 32px; }
  .matrix-heading { position: static; }
  .scenarios-grid { grid-template-columns: 1fr; gap: 32px; }
  .scenario-media img { height: 300px; }
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 767px) {
  .nav-menu { display: none; }
  .nav-actions .btn { display: none; }
  .nav-toggle { display: flex; }
  .mobile-menu { display: block; }
  .page-hero { padding: 120px 0 56px; }
  .page-hero h1 { font-size: 30px; }
  .page-hero-subtitle { font-size: 15px; }
  .metrics-section { margin-top: 0; }
  .metrics-panel { padding: 28px 20px; }
  .metrics-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .metric-item:not(:last-child)::after { display: none; }
  .metric-num { font-size: 32px; }
  .matrix-item { gap: 16px; padding: 22px 0; }
  .matrix-body h3 { font-size: 16px; }
  .scenario-item { flex-direction: column; gap: 12px; padding: 20px; }
  .scenario-icon { width: 40px; height: 40px; font-size: 15px; }
  .process-steps { grid-template-columns: 1fr; gap: 12px; }
  .process-step { padding: 24px 20px; }
  .faq-question { padding: 16px 20px; font-size: 15px; }
  .faq-answer { padding: 0 20px; }
  .faq-item.active .faq-answer { padding: 0 20px 16px; }
  .cta-section { padding: 64px 0; }
  .cta-inner h2 { font-size: 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .search-panel input { width: 100%; }
  .search-panel form { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .btn { height: 44px; font-size: 14px; }
}