/* roulang page: index */
:root{
    --primary:#1F3A5F;
    --primary-dark:#152A47;
    --accent:#C9A063;
    --accent-hover:#D7AF74;
    --dark-bg:#0E1726;
    --light-bg:#F6F3EC;
    --card-bg:#FFFFFF;
    --card-border:#E3DCCF;
    --text-main:#26303E;
    --text-muted:#6B7280;
    --text-light:#A6B3C4;
    --shadow:rgba(15,30,50,0.06);
    --shadow-hover:rgba(15,30,50,0.12);
    --radius:12px;
    --radius-btn:8px;
    --radius-tag:999px;
    --container-w:1200px;
    --space-section:88px;
    --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
    font-family:var(--font);
    background:var(--light-bg);
    color:var(--text-main);
    font-size:16px;
    line-height:1.75;
    padding-bottom:64px;
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s;}
a:hover{color:var(--accent);}
ul{list-style:none;}
.container{
    max-width:var(--container-w);
    margin:0 auto;
    padding-left:16px;
    padding-right:16px;
}
section{
    padding:var(--space-section) 0;
}
.section-head{
    text-align:center;
    margin-bottom:48px;
}
.section-tag{
    display:inline-block;
    background:rgba(201,160,99,.15);
    color:var(--accent);
    font-size:13px;
    font-weight:600;
    letter-spacing:.04em;
    padding:4px 16px;
    border-radius:var(--radius-tag);
    margin-bottom:14px;
}
.section-head h2{
    font-size:32px;
    line-height:1.3;
    font-weight:800;
    color:var(--primary);
    letter-spacing:.02em;
    margin-bottom:10px;
}
.section-desc{
    color:var(--text-muted);
    font-size:16px;
    max-width:640px;
    margin:0 auto;
}
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    height:48px;
    padding:0 28px;
    border-radius:var(--radius-btn);
    font-size:15px;
    font-weight:600;
    border:1px solid transparent;
    transition:all .2s ease;
    line-height:1.2;
    cursor:pointer;
    text-decoration:none;
}
.btn-primary{
    background:var(--accent);
    color:var(--primary-dark);
    border-color:var(--accent);
}
.btn-primary:hover{
    background:var(--accent-hover);
    color:var(--primary-dark);
    transform:translateY(-2px);
    box-shadow:0 8px 24px rgba(201,160,99,.25);
}
.btn-primary:active{
    transform:translateY(0);
    opacity:.88;
}
.btn-outline{
    background:transparent;
    color:var(--primary);
    border-color:rgba(31,58,95,.35);
}
.btn-outline:hover{
    border-color:var(--primary);
    color:var(--primary);
    background:rgba(31,58,95,.04);
}
.btn-light-outline{
    background:transparent;
    color:#fff;
    border-color:rgba(255,255,255,.55);
}
.btn-light-outline:hover{
    background:rgba(255,255,255,.12);
    border-color:#fff;
    color:#fff;
}
.btn-lg{height:54px;padding:0 36px;font-size:16px;}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}

/* Header */
.site-header{
    position:fixed;
    top:0;left:0;right:0;
    z-index:1000;
    background:rgba(246,243,236,.82);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid rgba(15,30,50,.06);
    transition:background .3s,box-shadow .3s,border-color .3s;
}
.site-header.scrolled{
    background:rgba(255,255,255,.96);
    box-shadow:0 4px 24px rgba(15,30,50,.08);
    border-bottom-color:transparent;
}
.nav-wrap{
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:72px;
}
.brand{
    display:flex;
    align-items:center;
    gap:10px;
    font-weight:800;
    font-size:18px;
    color:var(--primary);
    text-decoration:none;
    line-height:1.2;
}
.brand:hover{color:var(--primary);}
.brand-icon{
    width:38px;height:38px;
    background:linear-gradient(135deg,var(--primary),var(--primary-dark));
    color:var(--accent);
    border-radius:10px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:18px;
    font-weight:800;
    flex-shrink:0;
}
.nav-links{
    display:flex;
    align-items:center;
    gap:8px;
}
.nav-links a{
    display:block;
    padding:8px 16px;
    color:var(--text-main);
    font-weight:500;
    font-size:15px;
    border-radius:var(--radius-tag);
    transition:all .2s;
    text-decoration:none;
}
.nav-links a:hover{
    color:var(--primary);
    background:rgba(31,58,95,.06);
}
.nav-links a.active{
    color:var(--primary);
    background:rgba(31,58,95,.08);
    font-weight:600;
}
.nav-login{
    margin-left:12px;
    height:42px;
    padding:0 24px;
}
.nav-toggle{
    display:none;
    width:42px;height:42px;
    border:1px solid rgba(15,30,50,.12);
    background:transparent;
    border-radius:8px;
    cursor:pointer;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:5px;
    transition:border-color .2s;
}
.nav-toggle:hover{border-color:var(--accent);}
.nav-toggle span{
    width:20px;height:2px;
    background:var(--primary);
    border-radius:2px;
    transition:all .2s;
}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.active span:nth-child(2){opacity:0;}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* Mobile drawer */
.mobile-drawer{
    position:fixed;
    top:0;right:0;
    width:320px;
    max-width:85vw;
    height:100vh;
    height:100dvh;
    background:#fff;
    z-index:1100;
    box-shadow:-12px 0 40px rgba(15,30,50,.16);
    transform:translateX(100%);
    transition:transform .3s cubic-bezier(.4,0,.2,1);
    display:flex;
    flex-direction:column;
    padding:24px;
    overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-header{
    display:flex;
    align-items:center;
    justify-content:space-between;
    margin-bottom:28px;
}
.drawer-brand{
    font-weight:800;
    font-size:17px;
    color:var(--primary);
}
.drawer-close{
    width:38px;height:38px;
    border:1px solid rgba(15,30,50,.12);
    background:transparent;
    border-radius:8px;
    color:var(--text-main);
    font-size:16px;
    cursor:pointer;
    transition:all .2s;
}
.drawer-close:hover{
    border-color:var(--accent);
    color:var(--accent);
}
.drawer-links{
    display:flex;
    flex-direction:column;
    gap:4px;
    margin-bottom:24px;
}
.drawer-links a{
    padding:12px 16px;
    border-radius:8px;
    color:var(--text-main);
    font-size:16px;
    font-weight:500;
    text-decoration:none;
    transition:all .2s;
}
.drawer-links a:hover{
    background:rgba(31,58,95,.06);
    color:var(--primary);
}
.drawer-links a.active{
    background:rgba(31,58,95,.08);
    color:var(--primary);
    font-weight:600;
}
.drawer-overlay{
    position:fixed;
    inset:0;
    background:rgba(14,23,38,.55);
    z-index:1050;
    opacity:0;
    visibility:hidden;
    transition:all .3s;
}
.drawer-overlay.show{opacity:1;visibility:visible;}

/* Hero */
.hero{
    position:relative;
    background-color:var(--dark-bg);
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover;
    background-position:center;
    padding:176px 0 96px;
    overflow:hidden;
}
.hero::before{
    content:'';
    position:absolute;
    inset:0;
    background:linear-gradient(90deg,rgba(14,23,38,.94) 0%,rgba(14,23,38,.82) 50%,rgba(14,23,38,.6) 100%);
}
.hero .container{position:relative;z-index:2;}
.hero-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:rgba(201,160,99,.15);
    border:1px solid rgba(201,160,99,.25);
    color:var(--accent);
    font-size:13px;
    font-weight:600;
    padding:6px 18px;
    border-radius:var(--radius-tag);
    margin-bottom:20px;
    letter-spacing:.03em;
}
.hero h1{
    font-size:50px;
    font-weight:800;
    color:#fff;
    line-height:1.25;
    letter-spacing:.02em;
    margin-bottom:20px;
}
.hero h1 .text-gold{color:var(--accent);}
.hero-subtitle{
    font-size:18px;
    color:rgba(255,255,255,.8);
    line-height:1.75;
    max-width:520px;
    margin-bottom:28px;
}
.hero-actions{
    display:flex;
    gap:14px;
    flex-wrap:wrap;
    margin-bottom:28px;
}
.hero-points{
    display:flex;
    gap:22px;
    flex-wrap:wrap;
    font-size:14px;
    color:rgba(255,255,255,.7);
}
.hero-points span{
    display:inline-flex;
    align-items:center;
    gap:6px;
}
.hero-points i{color:var(--accent);}

/* Login Panel */
.login-panel{
    background:#fff;
    border-radius:16px;
    box-shadow:0 24px 64px rgba(0,0,0,.25);
    padding:32px;
    margin-left:auto;
    max-width:400px;
}
.login-panel-header{
    text-align:center;
    margin-bottom:24px;
}
.login-panel-header .panel-title{
    display:block;
    font-size:20px;
    font-weight:700;
    color:var(--primary);
    margin-bottom:4px;
}
.login-panel-header .panel-sub{
    display:block;
    font-size:13px;
    color:var(--text-muted);
}
.login-panel .form-group{
    margin-bottom:16px;
}
.login-panel label{
    display:block;
    font-size:14px;
    font-weight:500;
    color:var(--text-main);
    margin-bottom:6px;
}
.login-panel .form-control{
    width:100%;
    height:46px;
    border:1px solid #D9D2C5;
    border-radius:8px;
    padding:0 14px;
    font-size:15px;
    background:#FAF8F3;
    color:var(--text-main);
    transition:all .2s;
}
.login-panel .form-control:focus{
    border-color:var(--accent);
    box-shadow:0 0 0 3px rgba(201,160,99,.15);
    outline:none;
    background:#fff;
}
.login-panel .form-control::placeholder{color:#A8A294;}
.login-panel .btn{margin-top:8px;width:100%;}
.login-panel-footer{
    display:flex;
    justify-content:space-between;
    margin-top:20px;
    font-size:13px;
}
.login-panel-footer a{color:var(--text-muted);}
.login-panel-footer a:hover{color:var(--primary);}
.login-panel-note{
    margin-top:14px;
    padding:10px 14px;
    background:#F6F3EC;
    border-radius:8px;
    font-size:12px;
    color:var(--text-muted);
    display:flex;
    align-items:center;
    gap:8px;
}
.login-panel-note i{color:var(--accent);font-size:14px;}

/* Trust bar */
.trust-bar{
    background:#fff;
    border-bottom:1px solid rgba(15,30,50,.06);
    padding:40px 0;
}
.trust-items{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:24px;
}
.trust-item{
    text-align:center;
    position:relative;
}
.trust-item + .trust-item::before{
    content:'';
    position:absolute;
    left:-12px;
    top:15%;
    height:70%;
    width:1px;
    background:rgba(15,30,50,.08);
}
.trust-num{
    font-size:36px;
    font-weight:800;
    color:var(--primary);
    line-height:1.2;
    margin-bottom:4px;
    letter-spacing:-.01em;
}
.trust-num span{
    font-size:20px;
    color:var(--accent);
    font-weight:700;
}
.trust-label{
    font-size:14px;
    color:var(--text-muted);
}

/* Features */
.features{
    background:var(--light-bg);
}
.feature-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:24px;
}
.feature-card{
    background:#fff;
    border:1px solid var(--card-border);
    border-radius:var(--radius);
    box-shadow:0 4px 20px var(--shadow);
    padding:40px 36px;
    transition:all .25s;
    height:100%;
}
.feature-card:hover{
    box-shadow:0 16px 40px var(--shadow-hover);
    transform:translateY(-4px);
    border-color:#d8cfc0;
}
.feature-card-main{
    background:linear-gradient(160deg,#fff 0%,#FAF7F1 100%);
    display:flex;
    flex-direction:column;
    justify-content:space-between;
}
.feature-card-side{
    padding:32px 28px;
}
.feature-card-side + .feature-card-side{
    margin-top:24px;
}
.feature-icon{
    width:60px;height:60px;
    background:linear-gradient(135deg,var(--primary),var(--primary-dark));
    border-radius:14px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:24px;
    color:var(--accent);
    margin-bottom:22px;
}
.feature-icon.small{
    width:46px;height:46px;
    border-radius:12px;
    font-size:19px;
    margin-bottom:16px;
}
.feature-card h3{
    font-size:21px;
    font-weight:700;
    color:var(--primary);
    margin-bottom:12px;
    line-height:1.4;
}
.feature-card p{
    font-size:15px;
    color:var(--text-muted);
    line-height:1.75;
    margin-bottom:16px;
}
.feature-card ul{
    margin-bottom:18px;
}
.feature-card ul li{
    position:relative;
    padding-left:22px;
    font-size:14px;
    color:var(--text-main);
    margin-bottom:8px;
}
.feature-card ul li::before{
    content:'\f00c';
    font-family:'Font Awesome 6 Free';
    font-weight:900;
    position:absolute;
    left:0;
    color:var(--accent);
    font-size:12px;
    top:1px;
}
.text-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-weight:600;
    font-size:14px;
    color:var(--primary);
}
.text-link i{transition:transform .2s;}
.text-link:hover i{transform:translateX(4px);}

/* Scenarios */
.scenarios{
    background:#fff;
}
.scenario-row{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:56px;
    align-items:center;
    margin-bottom:64px;
}
.scenario-row:last-child{margin-bottom:0;}
.scenario-img{
    border-radius:16px;
    overflow:hidden;
    box-shadow:0 16px 48px rgba(15,30,50,.12);
}
.scenario-img img{
    width:100%;
    height:320px;
    object-fit:cover;
    transition:transform .4s;
}
.scenario-img:hover img{transform:scale(1.03);}
.scenario-content h3{
    font-size:26px;
    font-weight:700;
    color:var(--primary);
    margin-bottom:16px;
    line-height:1.4;
}
.scenario-content p{
    font-size:16px;
    color:var(--text-muted);
    line-height:1.8;
    margin-bottom:20px;
}
.scenario-list{
    list-style:none;
}
.scenario-list li{
    position:relative;
    padding-left:24px;
    font-size:15px;
    color:var(--text-main);
    margin-bottom:10px;
    line-height:1.6;
}
.scenario-list li::before{
    content:'\f105';
    font-family:'Font Awesome 6 Free';
    font-weight:900;
    position:absolute;
    left:0;
    color:var(--accent);
}

/* News */
.news-section{
    background:var(--light-bg);
}
.news-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:24px;
}
.news-card{
    background:#fff;
    border:1px solid var(--card-border);
    border-radius:var(--radius);
    overflow:hidden;
    box-shadow:0 4px 16px var(--shadow);
    transition:all .25s;
    height:100%;
    display:flex;
    flex-direction:column;
}
.news-card:hover{
    box-shadow:0 16px 40px var(--shadow-hover);
    transform:translateY(-5px);
    border-color:#d8cfc0;
}
.news-thumb{
    position:relative;
    display:block;
    overflow:hidden;
    aspect-ratio:16/9;
    background:var(--primary);
}
.news-thumb img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .4s;
}
.news-card:hover .news-thumb img{transform:scale(1.06);}
.news-tag{
    position:absolute;
    left:14px;
    top:14px;
    background:rgba(14,23,38,.78);
    backdrop-filter:blur(6px);
    color:#fff;
    font-size:12px;
    font-weight:600;
    padding:4px 12px;
    border-radius:var(--radius-tag);
    letter-spacing:.02em;
}
.news-content{
    padding:20px 20px 16px;
    display:flex;
    flex-direction:column;
    flex:1;
}
.news-content h3{
    font-size:17px;
    font-weight:700;
    line-height:1.5;
    margin-bottom:10px;
    color:var(--primary);
}
.news-content h3 a{
    color:inherit;
    text-decoration:none;
    transition:color .2s;
}
.news-content h3 a:hover{color:var(--accent);}
.news-content p{
    font-size:14px;
    color:var(--text-muted);
    line-height:1.7;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
    margin-bottom:14px;
    flex:1;
}
.news-meta{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding-top:12px;
    border-top:1px solid rgba(15,30,50,.06);
    font-size:13px;
    color:var(--text-muted);
}
.news-meta i{font-size:12px;margin-right:4px;color:var(--accent);}
.read-more{
    font-size:13px;
    font-weight:600;
    color:var(--primary);
    display:inline-flex;
    align-items:center;
    gap:4px;
    transition:gap .2s;
}
.read-more i{font-size:12px;margin:0;}
.read-more:hover{gap:7px;color:var(--accent);}
.empty-state{
    grid-column:1/-1;
    background:#fff;
    border:1px dashed var(--card-border);
    border-radius:var(--radius);
    padding:64px 24px;
    text-align:center;
    color:var(--text-muted);
}
.empty-state i{
    font-size:36px;
    color:#D0C8B8;
    margin-bottom:16px;
    display:block;
}
.empty-state p{
    font-size:15px;
    margin-bottom:0;
}

/* FAQ */
.faq-section{
    background:#fff;
}
.faq-accordion{
    max-width:820px;
    margin:0 auto;
}
.accordion-item{
    border:1px solid var(--card-border);
    border-radius:var(--radius);
    margin-bottom:14px;
    overflow:hidden;
    background:#fff;
    box-shadow:0 2px 10px rgba(15,30,50,.04);
    transition:box-shadow .2s;
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-item:has(.accordion-collapse.show){
    box-shadow:0 8px 24px rgba(15,30,50,.08);
    border-color:#d8cfc0;
}
.accordion-button{
    background:#fff;
    color:var(--text-main);
    font-size:16px;
    font-weight:600;
    padding:20px 22px;
    border:none;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    transition:color .2s;
}
.accordion-button::after{
    content:'\f067';
    font-family:'Font Awesome 6 Free';
    font-weight:900;
    font-size:14px;
    color:var(--accent);
    background-image:none;
    width:auto;
    height:auto;
    flex-shrink:0;
    transition:transform .25s;
}
.accordion-button:not(.collapsed)::after{
    content:'\f068';
    transform:rotate(0deg);
    color:var(--accent);
}
.accordion-button:not(.collapsed){
    background:#FAF8F3;
    color:var(--primary);
}
.accordion-button:hover:not(.collapsed){color:var(--primary);}
.accordion-button:focus{
    box-shadow:0 0 0 3px rgba(201,160,99,.15);
    outline:none;
}
.accordion-body{
    padding:4px 22px 20px;
    background:#FAF8F3;
    color:var(--text-muted);
    font-size:15px;
    line-height:1.75;
    border-top:1px solid rgba(15,30,50,.04);
}

/* Testimonials */
.testimonials{
    background:var(--dark-bg);
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;
    background-position:center;
    position:relative;
}
.testimonials::before{
    content:'';
    position:absolute;
    inset:0;
    background:rgba(14,23,38,.9);
}
.testimonials .container{position:relative;z-index:2;}
.testimonials .section-tag{background:rgba(201,160,99,.15);color:var(--accent);}
.testimonials .section-head h2{color:#fff;}
.testimonials .section-desc{color:rgba(255,255,255,.7);}
.testimonial-grid{
    display:grid;
    grid-template-columns:1.2fr .8fr;
    gap:48px;
    align-items:center;
}
.testimonial-quote{
    background:rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.1);
    border-radius:16px;
    padding:36px;
    margin:0;
    position:relative;
}
.testimonial-quote .quote-icon{
    font-size:28px;
    color:var(--accent);
    margin-bottom:16px;
    display:block;
}
.testimonial-quote p{
    font-size:18px;
    color:rgba(255,255,255,.92);
    line-height:1.7;
    margin-bottom:20px;
    font-weight:500;
}
.testimonial-quote footer{
    font-size:14px;
    color:rgba(255,255,255,.6);
    display:flex;
    align-items:center;
    gap:10px;
}
.testimonial-quote footer::before{
    content:'';
    width:30px;
    height:2px;
    background:var(--accent);
    display:inline-block;
    border-radius:2px;
}
.testimonial-quote + .testimonial-quote{margin-top:24px;}
.testimonial-stats{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:24px;
}
.stat{
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.12);
    border-radius:16px;
    padding:28px 20px;
    text-align:center;
    backdrop-filter:blur(8px);
}
.stat-num{
    font-size:36px;
    font-weight:800;
    color:var(--accent);
    display:block;
    line-height:1.2;
    letter-spacing:-.01em;
}
.stat-label{
    font-size:13px;
    color:rgba(255,255,255,.7);
    display:block;
    margin-top:6px;
}
.stat-wide{
    grid-column:1/-1;
}

/* CTA */
.bottom-cta{
    background-color:var(--dark-bg);
    background-image:url('/assets/images/backpic/back-3.webp');
    background-size:cover;
    background-position:center;
    position:relative;
    padding:100px 0;
    text-align:center;
}
.bottom-cta::before{
    content:'';
    position:absolute;
    inset:0;
    background:rgba(14,23,38,.85);
}
.bottom-cta .container{position:relative;z-index:2;}
.bottom-cta h2{
    font-size:36px;
    font-weight:800;
    color:#fff;
    margin-bottom:12px;
    letter-spacing:.02em;
}
.bottom-cta p{
    font-size:17px;
    color:rgba(255,255,255,.75);
    margin-bottom:32px;
}

/* Footer */
.site-footer{
    background:#0A111D;
    color:rgba(255,255,255,.65);
    padding:72px 0 32px;
    font-size:14px;
}
.footer-grid{
    display:grid;
    grid-template-columns:1.4fr .8fr .8fr 1fr;
    gap:40px;
    margin-bottom:48px;
}
.footer-brand .footer-logo{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:18px;
    font-weight:800;
    color:#fff;
    margin-bottom:16px;
}
.footer-logo .brand-icon{
    background:rgba(255,255,255,.1);
    color:var(--accent);
}
.footer-brand p{
    line-height:1.7;
    color:rgba(255,255,255,.55);
    max-width:340px;
}
.footer-col h4{
    font-size:15px;
    font-weight:700;
    color:#fff;
    margin-bottom:18px;
    letter-spacing:.02em;
}
.footer-col ul{
    display:flex;
    flex-direction:column;
    gap:10px;
}
.footer-col a{
    color:rgba(255,255,255,.6);
    font-size:14px;
    transition:color .2s;
    text-decoration:none;
}
.footer-col a:hover{color:var(--accent);}
.footer-col p{
    margin-bottom:10px;
    color:rgba(255,255,255,.55);
}
.footer-col p i{
    width:20px;
    color:var(--accent);
    margin-right:4px;
}
.footer-bottom{
    text-align:center;
    padding-top:28px;
    border-top:1px solid rgba(255,255,255,.08);
    color:rgba(255,255,255,.4);
    font-size:13px;
}
.footer-bottom .domain{
    color:rgba(255,255,255,.55);
}

/* Bottom rail */
.bottom-rail{
    position:fixed;
    bottom:0;
    left:0;
    right:0;
    z-index:999;
    background:rgba(14,23,38,.92);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-top:1px solid rgba(255,255,255,.1);
    padding:12px 0;
    display:none;
}
.rail-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    min-height:44px;
}
.rail-text{
    color:rgba(255,255,255,.8);
    font-size:14px;
    margin:0;
    display:flex;
    align-items:center;
    gap:8px;
}
.rail-text i{color:var(--accent);}
.rail-actions{
    display:flex;
    align-items:center;
    gap:10px;
}
.rail-actions .btn{height:40px;padding:0 20px;font-size:14px;}
.rail-actions .btn-help{display:none;}

/* Scrollbar */
::-webkit-scrollbar{width:10px;}
::-webkit-scrollbar-track{background:#F1EDE4;}
::-webkit-scrollbar-thumb{background:#C9A063;border-radius:5px;}
::-webkit-scrollbar-thumb:hover{background:#B8914E;}

/* Responsive */
@media (max-width:991px){
    .nav-links{display:none;}
    .nav-toggle{display:flex;}
    .nav-login{display:none;}
    .hero{padding:150px 0 72px;}
    .hero h1{font-size:42px;}
    .trust-items{grid-template-columns:repeat(2,1fr);gap:30px 20px;}
    .trust-item:nth-child(2)::before{display:none;}
    .trust-item:nth-child(3)::before{display:none;}
    .news-grid{grid-template-columns:repeat(2,1fr);}
    .feature-grid{grid-template-columns:1fr;}
    .scenario-row{grid-template-columns:1fr;gap:32px;}
    .scenario-img img{height:260px;}
    .testimonial-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;}
    .bottom-rail{display:block;}
    body{padding-bottom:68px;}
}
@media (max-width:767px){
    :root{--space-section:60px;}
    .section-head h2{font-size:26px;}
    .hero{padding:130px 0 56px;}
    .hero h1{font-size:32px;}
    .hero-subtitle{font-size:16px;}
    .hero-points{gap:12px;flex-direction:column;align-items:flex-start;}
    .login-panel{margin:32px auto 0;max-width:100%;padding:24px;}
    .trust-items{grid-template-columns:1fr 1fr;}
    .trust-num{font-size:28px;}
    .news-grid{grid-template-columns:1fr;}
    .feature-card{padding:28px 20px;}
    .feature-card-main{padding:28px 20px;}
    .scenario-row{gap:24px;margin-bottom:48px;}
    .scenario-content h3{font-size:22px;}
    .testimonial-quote{padding:24px;}
    .testimonial-quote p{font-size:16px;}
    .testimonial-stats{grid-template-columns:1fr;}
    .stat-num{font-size:30px;}
    .bottom-cta{padding:60px 0;}
    .bottom-cta h2{font-size:26px;}
    .footer-grid{grid-template-columns:1fr;gap:32px;}
    .footer-brand p{max-width:100%;}
    .rail-text{display:none;}
    .rail-actions .btn-help{display:inline-flex;}
    .rail-inner{justify-content:center;}
    .accordion-button{font-size:15px;padding:16px 18px;}
    .accordion-body{font-size:14px;padding:4px 18px 16px;}
}
@media (max-width:520px){
    .container{padding-left:12px;padding-right:12px;}
    .hero-actions .btn{width:100%;}
    .hero-actions .btn-lg{padding:0 20px;}
    .trust-items{grid-template-columns:1fr;}
    .trust-item::before{display:none;}
    .testimonial-stats{grid-template-columns:1fr;}
    .stat-wide{grid-column:auto;}
}

/* roulang page: category1 */
:root {
            --primary: #1F3A5F;
            --primary-dark: #162A47;
            --primary-light: #2C4D75;
            --accent: #C9A063;
            --accent-light: #D9B87A;
            --dark-bg: #0E1726;
            --light-bg: #F6F3EC;
            --white: #FFFFFF;
            --text: #2C3A4B;
            --text-light: #6B7A8D;
            --border: #E3DCCF;
            --shadow-sm: 0 2px 8px rgba(15, 30, 50, 0.06);
            --shadow-md: 0 8px 20px rgba(15, 30, 50, 0.08);
            --shadow-lg: 0 16px 40px rgba(15, 30, 50, 0.12);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 20px;
            --radius-full: 999px;
            --transition: 0.2s ease;
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--light-bg);
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; }
        button { font-family: inherit; cursor: pointer; }
        ul, ol { list-style-type: none; }

        .container { max-width: 1200px; padding-left: 16px; padding-right: 16px; }

        .btn {
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(201, 160, 99, 0.3);
        }
        .btn-primary:active { opacity: 0.8; transform: translateY(0); }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.7);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-primary {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-outline-primary:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        @media (max-width: 767px) {
            .btn { height: 44px; padding: 0 20px; font-size: 14px; width: 100%; max-width: 280px; }
        }

        .section-tag {
            display: inline-block;
            background: rgba(201, 160, 99, 0.12);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            letter-spacing: 0.04em;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: 30px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            letter-spacing: 0.02em;
            margin-bottom: 12px;
        }
        .section-sub {
            font-size: 16px;
            color: var(--text-light);
            max-width: 640px;
            margin: 0 auto 40px;
            line-height: 1.7;
        }
        @media (max-width: 767px) {
            .section-title { font-size: 24px; }
            .section-sub { font-size: 15px; }
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            transition: all 0.3s ease;
        }
        .site-header.scrolled {
            background: var(--white);
            box-shadow: 0 4px 20px rgba(15, 30, 50, 0.08);
            border-bottom-color: rgba(227, 220, 207, 0.6);
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .brand:hover { color: var(--primary); }
        .brand-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: var(--accent);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            box-shadow: 0 2px 8px rgba(31, 58, 95, 0.25);
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 36px;
        }
        .nav-links a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            position: relative;
            padding: 6px 0;
        }
        .nav-links a::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.25s ease;
        }
        .nav-links a:hover { color: var(--primary); }
        .nav-links a:hover::after,
        .nav-links a.active::after { transform: scaleX(1); }
        .nav-links a.active { color: var(--primary); font-weight: 600; }
        .nav-login { height: 40px; padding: 0 22px; font-size: 14px; }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            width: 44px;
            height: 44px;
            justify-content: center;
            align-items: center;
            border-radius: 8px;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .nav-toggle.open span:nth-child(2) { opacity: 0; }
        .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
        @media (max-width: 991px) {
            .nav-toggle { display: flex; }
            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 16px 24px 24px;
                box-shadow: 0 16px 40px rgba(15, 30, 50, 0.1);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                border-bottom: 1px solid var(--border);
            }
            .nav-links.open { transform: translateY(0); }
            .nav-links a {
                width: 100%;
                padding: 14px 0;
                font-size: 16px;
                border-bottom: 1px solid rgba(227, 220, 207, 0.4);
            }
            .nav-links a::after { display: none; }
            .nav-links a.active { color: var(--accent); }
            .nav-login { display: none; }
        }

        .hero {
            background: var(--dark-bg);
            background-image: linear-gradient(135deg, rgba(14, 23, 38, 0.9) 0%, rgba(31, 58, 95, 0.75) 100%), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 140px 0 80px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .hero::after {
            content: "";
            position: absolute;
            width: 700px;
            height: 700px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(201, 160, 99, 0.15) 0%, transparent 60%);
            top: 50%;
            right: -200px;
            transform: translateY(-50%);
            pointer-events: none;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(201, 160, 99, 0.16);
            border: 1px solid rgba(201, 160, 99, 0.35);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            margin-bottom: 20px;
        }
        .hero h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: 0.02em;
            color: #fff;
            margin-bottom: 20px;
            max-width: 640px;
        }
        .hero h1 .highlight { color: var(--accent); }
        .hero-lead {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin-bottom: 32px;
        }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; position: relative; z-index: 2; }
        @media (max-width: 767px) {
            .hero { padding: 110px 0 60px; }
            .hero h1 { font-size: 30px; }
            .hero-lead { font-size: 16px; }
            .hero-actions { flex-direction: column; align-items: flex-start; }
        }

        .intro-section { padding: 80px 0; background: var(--light-bg); }
        .intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
        .intro-content .section-title { text-align: left; }
        .intro-content p { margin-bottom: 16px; font-size: 15px; line-height: 1.8; color: var(--text); }
        .intro-list { margin-top: 20px; }
        .intro-list li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 10px 0;
            font-size: 15px;
            color: var(--text);
        }
        .intro-list li i { color: var(--accent); font-size: 16px; margin-top: 4px; flex-shrink: 0; }
        .intro-image { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
        .intro-image img { width: 100%; display: block; border-radius: var(--radius-lg); }
        .intro-image::after { content: ""; position: absolute; inset: 0; border: 1px solid rgba(255, 255, 255, 0.3); border-radius: var(--radius-lg); pointer-events: none; }
        @media (max-width: 991px) {
            .intro-grid { grid-template-columns: 1fr; gap: 36px; }
            .intro-image { max-width: 560px; }
        }
        @media (max-width: 767px) {
            .intro-section { padding: 60px 0; }
        }

        .services-section { padding: 80px 0; background: var(--white); }
        .services-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
        .service-card {
            background: var(--light-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 30px;
            transition: var(--transition);
            position: relative;
        }
        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(201, 160, 99, 0.4);
        }
        .service-icon {
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
            box-shadow: 0 4px 12px rgba(31, 58, 95, 0.2);
        }
        .service-card h3 { font-size: 19px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
        .service-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 16px; }
        .service-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .service-link i { transition: transform 0.2s ease; font-size: 13px; }
        .service-link:hover { color: var(--accent); }
        .service-link:hover i { transform: translateX(4px); }
        @media (max-width: 991px) {
            .services-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
        }
        @media (max-width: 767px) {
            .services-section { padding: 60px 0; }
            .service-card { padding: 24px 20px; }
        }

        .process-section { padding: 80px 0; background: var(--light-bg); }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }
        .process-step {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            text-align: center;
            position: relative;
            transition: var(--transition);
        }
        .process-step:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
        .step-num {
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 15px;
            font-weight: 700;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }
        .step-icon { font-size: 28px; color: var(--primary); margin-bottom: 14px; display: block; }
        .process-step h3 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
        .process-step p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
        @media (max-width: 991px) {
            .process-steps { grid-template-columns: 1fr; max-width: 480px; margin: 40px auto 0; }
        }

        .faq-section { padding: 80px 0; background: var(--white); }
        .faq-wrap { max-width: 820px; margin: 0 auto; }
        .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: var(--radius) !important;
            margin-bottom: 16px;
            overflow: hidden;
            background: var(--white);
            transition: var(--transition);
        }
        .accordion-item:has(.accordion-button:not(.collapsed)) {
            background: var(--light-bg);
            border-color: rgba(201, 160, 99, 0.4) !important;
        }
        .accordion-button {
            background: var(--white) !important;
            color: var(--primary) !important;
            font-size: 15px;
            font-weight: 600;
            padding: 20px 24px;
            box-shadow: none !important;
            border-radius: var(--radius) !important;
            transition: var(--transition);
        }
        .accordion-button::after {
            background-image: none;
            content: "\f067";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 14px;
            color: var(--accent);
            width: auto;
            height: auto;
            transition: transform 0.25s ease;
        }
        .accordion-button:not(.collapsed)::after {
            content: "\f068";
            transform: rotate(0deg);
            color: var(--accent);
        }
        .accordion-button:not(.collapsed) { background: var(--light-bg) !important; }
        .accordion-button:focus { outline: 2px solid rgba(201, 160, 99, 0.3); outline-offset: -2px; }
        .accordion-body {
            padding: 0 24px 20px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text);
        }
        @media (max-width: 767px) {
            .faq-section { padding: 60px 0; }
            .accordion-button { font-size: 14px; padding: 16px 18px; }
            .accordion-body { padding: 0 18px 16px; }
        }

        .cta-section {
            background: var(--dark-bg);
            background-image: linear-gradient(135deg, rgba(14, 23, 38, 0.95) 0%, rgba(31, 58, 95, 0.85) 100%), url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            padding: 80px 0;
            text-align: center;
            color: #fff;
        }
        .cta-section h2 { font-size: 32px; font-weight: 800; margin-bottom: 16px; color: #fff; }
        .cta-section p { font-size: 16px; color: rgba(255, 255, 255, 0.8); max-width: 560px; margin: 0 auto 32px; }
        .cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
        @media (max-width: 767px) {
            .cta-section { padding: 60px 0; }
            .cta-section h2 { font-size: 24px; }
            .cta-actions { flex-direction: column; align-items: center; }
        }

        .site-footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
            font-size: 14px;
        }
        .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1.2fr 1.2fr; gap: 40px; padding-bottom: 40px; }
        .footer-brand { display: inline-flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 700; color: #fff; margin-bottom: 14px; }
        .footer-brand .brand-icon { width: 34px; height: 34px; font-size: 17px; }
        .footer-desc { font-size: 13px; line-height: 1.7; color: rgba(255, 255, 255, 0.55); }
        .footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 18px; letter-spacing: 0.02em; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul a { color: rgba(255, 255, 255, 0.6); font-size: 14px; }
        .footer-col ul a:hover { color: var(--accent); }
        .footer-col ul li i { width: 18px; color: var(--accent); margin-right: 6px; }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            text-align: center;
        }
        .footer-bottom span { display: inline-block; margin: 0 6px; }
        @media (max-width: 991px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 575px) {
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
        }

        .sticky-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 900;
            background: rgba(14, 23, 38, 0.92);
            backdrop-filter: blur(12px);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 12px 0;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            color: #fff;
        }
        .sticky-bar p { margin: 0; font-size: 14px; color: rgba(255, 255, 255, 0.8); }
        .sticky-bar .btn { height: 36px; padding: 0 18px; font-size: 13px; }
        .sticky-bar .btn-secondary-link {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            height: 36px;
            padding: 0 18px;
            font-size: 13px;
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            transition: var(--transition);
        }
        .sticky-bar .btn-secondary-link:hover { border-color: var(--accent); color: var(--accent); }
        @media (max-width: 767px) {
            .sticky-bar { padding: 10px 16px; gap: 12px; flex-wrap: wrap; }
            .sticky-bar p { display: none; }
            .sticky-bar .btn, .sticky-bar .btn-secondary-link { flex: 1; max-width: 160px; }
        }
        body { padding-bottom: 70px; }
        @media (max-width: 767px) {
            body { padding-bottom: 70px; }
        }

        .back-to-home { text-align: center; margin-top: 40px; }
        @media (max-width: 767px) {
            .back-to-home .btn { max-width: 240px; }
        }

/* roulang page: article */
:root {
    --primary: #1F3A5F;
    --primary-dark: #162A45;
    --accent: #C9A063;
    --accent-light: #D9B77E;
    --dark: #0E1726;
    --dark-2: #16263B;
    --light: #F6F3EC;
    --card-bg: #FFFFFF;
    --border: #E3DCCF;
    --border-dark: rgba(255,255,255,0.1);
    --text: #23303F;
    --text-weak: #657386;
    --body-bg: #FAF8F3;
    --radius: 12px;
    --radius-btn: 8px;
    --shadow-sm: 0 2px 10px rgba(15,30,50,0.06);
    --shadow-md: 0 8px 30px rgba(15,30,50,0.08);
    --shadow-lg: 0 16px 40px rgba(15,30,50,0.12);
    --section-space: 88px;
    --container-width: 1200px;
    --transition: 0.2s ease;
    --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.75;
    color: var(--text);
    background: var(--light);
    -webkit-font-smoothing: antialiased;
    padding-bottom: 84px;
}

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

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

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

ul,
ol {
    padding-left: 1.4em;
}

.container {
    max-width: var(--container-width);
    width: 100%;
    margin-inline: auto;
    padding-inline: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 28px;
    border-radius: var(--radius-btn);
    font-weight: 600;
    font-size: 15px;
    border: 1px solid transparent;
    transition: all 0.25s ease;
    cursor: pointer;
    line-height: 1;
    white-space: nowrap;
}

.btn-primary {
    --bs-btn-color: #1A1A1A;
    --bs-btn-bg: #C9A063;
    --bs-btn-border-color: #C9A063;
    --bs-btn-hover-bg: #D9B77E;
    --bs-btn-hover-border-color: #D9B77E;
    --bs-btn-active-bg: #B99550;
    --bs-btn-active-border-color: #B99550;
    background: var(--accent);
    border-color: var(--accent);
    color: #1A1A1A;
}

.btn-primary:hover {
    background: var(--accent-light);
    border-color: var(--accent-light);
    color: #1A1A1A;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(201, 160, 99, 0.35);
}

.btn-primary:active {
    transform: translateY(0);
    opacity: 0.85;
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline-primary:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(31, 58, 95, 0.18);
}

.btn-light-outline {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.7);
}

.btn-light-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border-color: #fff;
    transform: translateY(-2px);
}

.btn-lg-custom {
    height: 52px;
    padding: 0 38px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
}

/* 顶部导航 */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1030;
    background: rgba(246, 243, 236, 0.88);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: background 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(15, 30, 50, 0.08);
    border-bottom-color: rgba(15, 30, 50, 0.06);
}

.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    color: var(--primary);
    font-size: 18px;
    line-height: 1.2;
}

.brand-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--primary);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    color: var(--text);
    position: relative;
    padding: 6px 2px;
    font-size: 15px;
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.25s;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links a.active {
    color: var(--primary);
    font-weight: 700;
}

.nav-login {
    height: 40px;
    padding: 0 20px;
    font-size: 14px;
    border-radius: var(--radius-btn);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 8px;
    cursor: pointer;
    padding: 0;
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: transform 0.2s;
}

/* 移动抽屉 */
.drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(14, 23, 38, 0.5);
    z-index: 1040;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.drawer-overlay.show {
    opacity: 1;
    pointer-events: auto;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: min(320px, 86%);
    height: 100dvh;
    background: #fff;
    z-index: 1050;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    padding: 24px;
    box-shadow: 0 0 40px rgba(14, 23, 38, 0.2);
}

.mobile-drawer.open {
    transform: translateX(0);
}

.drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
}

.drawer-header .brand {
    font-size: 16px;
}

.drawer-close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    background: var(--light);
    border-radius: 8px;
    color: var(--primary);
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s;
}

.drawer-close:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.drawer-nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.drawer-nav a {
    padding: 12px 10px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text);
    border-radius: 8px;
    border: 1px solid transparent;
}

.drawer-nav a:hover,
.drawer-nav a.active {
    background: var(--light);
    color: var(--primary);
    border-color: var(--border);
}

.drawer-login {
    margin-top: auto;
    padding-top: 20px;
}

/* 文章 Banner */
.article-banner {
    position: relative;
    padding: 140px 0 56px;
    background: var(--dark) url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
    color: #fff;
    overflow: hidden;
}

.article-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(14, 23, 38, 0.5), rgba(14, 23, 38, 0.88));
}

.article-banner::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(2px 2px at 18% 28%, rgba(255, 255, 255, 0.7), transparent),
        radial-gradient(1.5px 1.5px at 72% 18%, rgba(255, 255, 255, 0.5), transparent),
        radial-gradient(2px 2px at 84% 64%, rgba(255, 255, 255, 0.6), transparent),
        radial-gradient(1.5px 1.5px at 38% 72%, rgba(255, 255, 255, 0.45), transparent);
    pointer-events: none;
}

.article-banner .container {
    position: relative;
    z-index: 2;
}

.breadcrumb-nav {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin-bottom: 22px;
}

.breadcrumb-nav a {
    color: rgba(255, 255, 255, 0.75);
    transition: color 0.2s;
}

.breadcrumb-nav a:hover {
    color: var(--accent);
}

.breadcrumb-nav .current {
    color: rgba(255, 255, 255, 0.95);
    max-width: 360px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tag-gold {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    background: rgba(201, 160, 99, 0.18);
    color: #E5C27F;
    border: 1px solid rgba(201, 160, 99, 0.35);
    margin-bottom: 16px;
}

.article-title {
    font-size: 42px;
    line-height: 1.25;
    font-weight: 800;
    color: #fff;
    max-width: 860px;
    margin-bottom: 18px;
    letter-spacing: 0.02em;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
}

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

.article-meta i {
    color: var(--accent);
}

/* 正文区 */
.article-main {
    padding: 56px 0 64px;
}

.article-body {
    max-width: 800px;
    margin: 0 auto;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    padding: 52px 56px;
    overflow-x: auto;
    overflow-wrap: break-word;
}

.article-body h2 {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    margin: 2em 0 0.8em;
    padding-bottom: 0.4em;
    border-bottom: 1px solid var(--border);
    line-height: 1.3;
}

.article-body h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    margin: 1.8em 0 0.7em;
    line-height: 1.35;
}

.article-body p {
    margin-bottom: 1.3em;
    color: #37414F;
    line-height: 1.8;
}

.article-body blockquote {
    border-left: 4px solid var(--accent);
    background: var(--light);
    padding: 18px 24px;
    border-radius: 0 10px 10px 0;
    margin: 1.5em 0;
    color: var(--text);
}

.article-body ul,
.article-body ol {
    margin-bottom: 1.3em;
}

.article-body li {
    margin-bottom: 0.4em;
}

.article-body table {
    width: 100%;
    min-width: 560px;
    border-collapse: collapse;
    margin: 1.5em 0;
}

.article-body th,
.article-body td {
    border: 1px solid var(--border);
    padding: 12px 14px;
    text-align: left;
}

.article-body th {
    background: var(--light);
    font-weight: 700;
    color: var(--primary);
}

.article-body img {
    border-radius: var(--radius);
    margin: 1.5em auto;
}

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

.article-body a:hover {
    color: var(--accent);
}

.article-back {
    margin-top: 44px;
    padding-top: 28px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

.not-found {
    text-align: center;
    padding: 48px 0;
}

.not-found .nf-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 18px;
    border-radius: 50%;
    background: var(--light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--accent);
}

.not-found h2 {
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 10px;
}

.not-found p {
    color: var(--text-weak);
    margin-bottom: 24px;
}

/* 相关推荐 */
.related-section {
    background: var(--body-bg);
    padding: 72px 0 80px;
    border-top: 1px solid rgba(15, 30, 50, 0.06);
}

.section-head {
    margin-bottom: 40px;
}

.section-head.center {
    text-align: center;
}

.section-eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: #B08A48;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.section-head h2 {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    margin: 0 0 10px;
    line-height: 1.25;
}

.section-sub {
    color: var(--text-weak);
    max-width: 560px;
    margin: 0;
}

.section-head.center .section-sub {
    margin-inline: auto;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.related-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    transition: transform 0.25s, box-shadow 0.25s;
    display: block;
}

.related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    color: var(--text);
}

.related-thumb {
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.45s ease;
}

.related-card:hover .related-thumb img {
    transform: scale(1.05);
}

.related-body {
    padding: 22px 22px 20px;
}

.tag-card {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    background: rgba(201, 160, 99, 0.15);
    color: #B08A48;
    margin-bottom: 12px;
}

.related-body h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.4;
    margin-bottom: 8px;
}

.related-desc {
    color: var(--text-weak);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-weak);
    border-top: 1px solid var(--border);
    padding-top: 12px;
}

.related-meta span:last-child {
    color: var(--accent);
    font-weight: 600;
}

/* CTA 区 */
.article-cta {
    position: relative;
    background: var(--dark) url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
    padding: 68px 0;
    text-align: center;
    color: #fff;
    border-top: 1px solid var(--border-dark);
}

.article-cta::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(14, 23, 38, 0.78);
}

.article-cta .container {
    position: relative;
    z-index: 2;
}

.article-cta h2 {
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 12px;
    color: #fff;
}

.article-cta p {
    color: rgba(255, 255, 255, 0.75);
    max-width: 620px;
    margin: 0 auto 28px;
}

/* 底部固定转化条 */
.bottom-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1020;
    background: rgba(14, 23, 38, 0.97);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 12px 0;
    color: #fff;
}

.bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.bottom-text {
    margin: 0;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
    display: flex;
    align-items: center;
    gap: 8px;
}

.bottom-text i {
    color: var(--accent);
}

.bottom-bar .btn {
    height: 40px;
    padding: 0 22px;
    font-size: 14px;
}

.mobile-actions {
    display: none;
    gap: 12px;
    width: 100%;
}

/* 页脚 */
.site-footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 64px 0 0;
    font-size: 14px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 44px;
}

.footer-brand .brand {
    color: #fff;
    margin-bottom: 16px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    margin-bottom: 14px;
}

.footer-brand .ops-line {
    color: var(--accent);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}

.site-footer h4 {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
}

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

.site-footer ul li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.site-footer ul a {
    color: rgba(255, 255, 255, 0.65);
    transition: color 0.2s;
}

.site-footer ul a:hover {
    color: var(--accent);
}

.footer-contact i {
    color: var(--accent);
    width: 16px;
    text-align: center;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 18px 0;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}

/* 响应式 */
@media (max-width: 991px) {
    .nav-links {
        display: none;
    }
    .nav-login {
        display: none;
    }
    .nav-toggle {
        display: flex;
    }
    .related-grid {
        grid-template-columns: 1fr 1fr;
    }
    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 767px) {
    body {
        padding-bottom: 100px;
    }
    .article-banner {
        padding: 112px 0 40px;
    }
    .article-title {
        font-size: 30px;
    }
    .article-body {
        padding: 30px 20px;
        border-radius: var(--radius);
    }
    .article-body h2 {
        font-size: 24px;
    }
    .article-body h3 {
        font-size: 20px;
    }
    .article-main {
        padding: 36px 0 44px;
    }
    .related-section {
        padding: 56px 0 60px;
    }
    .related-grid {
        grid-template-columns: 1fr;
    }
    .article-cta {
        padding: 56px 0;
    }
    .article-cta h2 {
        font-size: 26px;
    }
    .bottom-text,
    .bottom-btn {
        display: none;
    }
    .mobile-actions {
        display: flex;
    }
    .mobile-actions .btn {
        flex: 1;
        height: 44px;
    }
    .bottom-bar {
        padding: 10px 0;
    }
    .footer-top {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 575px) {
    .brand {
        font-size: 16px;
    }
    .brand-icon {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }
    .nav-wrap {
        height: 64px;
    }
}