/* roulang page: index */
:root {
  --primary: #2165E3;
  --primary-dark: #174FC0;
  --primary-light: #EAF1FD;
  --accent: #FF6A3D;
  --accent-dark: #E8552D;
  --accent-light: #FFF0EA;
  --bg: #F5F8FC;
  --card: #FFFFFF;
  --ink: #1B2A4A;
  --sub: #5C6B84;
  --faint: #78879E;
  --line: #E4EAF3;
  --line-deep: #D5DFEE;
  --border-blue: #BBD2FC;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(33,101,227,.06);
  --shadow-md: 0 12px 28px rgba(33,101,227,.12);
  --font: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --space: 88px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased;font-feature-settings:"tnum"}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:all .25s ease}
a:hover{color:var(--primary-dark)}
ul,li{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
.container{max-width:1200px;margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px}
.grid-container{padding-left:20px;padding-right:20px;max-width:1200px}
::selection{background:rgba(33,101,227,.13);color:var(--ink)}
:focus-visible{outline:3px solid rgba(33,101,227,.35);outline-offset:2px;border-radius:4px}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-sm);font-weight:600;font-size:15px;padding:11px 26px;border:0;cursor:pointer;transition:all .25s ease;line-height:1.2;white-space:nowrap;text-align:center}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(255,106,61,.30)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:transparent;border:1.5px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-2px)}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--ink)}
.btn-ghost:hover{background:#f7faff;border-color:var(--border-blue);color:var(--primary)}
.btn-lg{height:52px;padding:0 36px;font-size:15.5px}
.btn-block{width:100%}

/* ===== Buttons final states ===== */
.btn:active{transform:translateY(1px) scale(.99)}
.btn-primary:focus-visible,.btn-outline:focus-visible,.btn-ghost:focus-visible{outline:3px solid rgba(33,101,227,.30);outline-offset:2px}

/* ===== Badge / Tag ===== */
.tag{display:inline-flex;align-items:center;gap:6px;background:var(--primary-light);color:var(--primary);font-size:12.5px;font-weight:600;padding:4px 14px;border-radius:999px}
.tag-orange{background:var(--accent-light);color:var(--accent-dark)}
.tag-grey{background:#EEF2F7;color:var(--sub)}
.tag-new{background:#fff2e8;color:#E84E1B;font-size:12px;font-weight:700;padding:2px 9px;border-radius:999px;margin-left:6px;letter-spacing:.2px}

/* ===== Header ===== */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:50}
.header-top{border-bottom:1px solid #EDF2F9;background:#fff}
.header-main-row{padding-top:12px;padding-bottom:12px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap}
.brand-cell{display:flex;align-items:center}
.brand-block{display:inline-flex;align-items:center;gap:10px;text-decoration:none}
.brand-icon{width:40px;height:40px;background:var(--primary);border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;box-shadow:0 6px 14px rgba(33,101,227,.25);flex-shrink:0}
.brand-text{font-size:21px;font-weight:800;color:var(--ink);letter-spacing:.2px;white-space:nowrap}
.header-actions{display:flex;align-items:center;justify-content:flex-end;gap:14px}
.header-search-box{display:flex;align-items:center;background:#F3F6FB;border:1px solid #E3EAF3;border-radius:999px;padding:0 6px 0 16px;height:42px;width:250px;transition:border-color .2s, box-shadow .2s}
.header-search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(33,101,227,.1);background:#fff}
.header-search-box i{color:var(--faint);font-size:14px;margin-right:7px}
.header-search-box input{border:none;background:transparent;height:36px;width:100%;font-size:14px;color:var(--ink)}
.header-search-box input::placeholder{color:#ABAFB8}
.header-search-box input:focus{outline:none;box-shadow:none}
.header-login-btn{height:42px;padding:0 20px;font-size:14px;border-radius:999px}
.header-mobile-search{display:none}

.channel-tab-wrap{background:#fff;border-top:1px solid #F0F4FA;position:relative}
.channel-tab-inner{display:flex;align-items:center;justify-content:space-between;max-width:1200px;margin:0 auto;padding:0 20px}
.channel-tabs{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;padding:6px 0;-webkit-overflow-scrolling:touch}
.channel-tabs::-webkit-scrollbar{display:none}
.channel-tab{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:999px;font-size:14.5px;font-weight:600;color:var(--sub);white-space:nowrap;transition:all .25s ease}
.channel-tab i{font-size:13px;opacity:.75}
.channel-tab:hover{background:var(--primary-light);color:var(--primary)}
.channel-tab.active{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(33,101,227,.22)}
.channel-tab .fa-caret-down{font-size:10px}
.header-misc-actions{display:flex;align-items:center;gap:10px;margin-left:16px;flex-shrink:0}
.header-clock{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--sub);background:#F5F8FC;border-radius:999px;padding:6px 14px}
.header-clock i{color:var(--accent)}

/* ===== Footer ===== */
.site-footer{background:#F8FAFD;border-top:1px solid var(--line);margin-top:0}
.footer-safe{background:#EEF4FC;border-top:1px solid transparent;padding:9px 0}
.footer-safe .grid-container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.footer-safe span{font-size:13.5px;color:#3E547B;display:inline-flex;align-items:center;gap:7px;padding:4px 2px}
.footer-safe span i{color:var(--primary);font-size:16px}
.footer-main{padding:54px 0 28px;background:#fff}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.1fr;gap:38px}
.footer-brand h4{font-size:19px;font-weight:800;display:flex;align-items:center;gap:10px;margin-bottom:14px;color:var(--ink)}
.footer-brand h4 .brand-icon{width:34px;height:34px;font-size:15px;border-radius:9px}
.footer-brand p{font-size:13.5px;color:var(--faint);line-height:1.8;margin-bottom:14px;max-width:330px}
.footer-social{display:flex;gap:9px;margin-top:8px}
.footer-social a{width:32px;height:32px;border-radius:50%;background:#F2F5FA;display:flex;align-items:center;justify-content:center;color:var(--sub);font-size:14px}
.footer-social a:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.footer-col h5{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:15px;position:relative;padding-bottom:8px}
.footer-col h5::after{content:'';position:absolute;left:0;bottom:0;width:22px;height:3px;background:var(--accent);border-radius:99px}
.footer-col ul li{margin-bottom:9px}
.footer-col ul li a{font-size:13.8px;color:var(--sub);display:inline-flex;align-items:center;gap:7px;transition:all .25s}
.footer-col ul li a i{font-size:11px;color:#B7C3D6}
.footer-col ul li a:hover{color:var(--primary);padding-left:3px}
.footer-contact p{font-size:13.8px;color:var(--sub);line-height:2;display:flex;gap:9px;align-items:center}
.footer-contact p i{width:26px;height:26px;background:var(--primary-light);border-radius:7px;display:inline-flex;align-items:center;justify-content:center;color:var(--primary);font-size:12px}
.footer-bottom{border-top:1px solid #EDF2F9;padding:17px 0;background:#fff}
.footer-bottom-inner{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;max-width:1200px;margin:0 auto;padding:0 20px}
.footer-copyright{font-size:13px;color:#8B95A7}
.footer-copyright a{color:#6B7892}
.footer-tech{font-size:13px;color:#A2AEC2;display:flex;gap:16px}

/* ===== Section Shared ===== */
.section{padding:var(--space) 0}
.section-sm{padding:48px 0}
.section-white{background:#fff}
.section-grey{background:var(--bg)}
.section-blue{background:var(--primary-light)}
.section-title-wrap{display:flex;align-items:center;justify-content:space-between;margin-bottom:34px}
.section-title{display:flex;align-items:center;gap:12px;font-size:25px;font-weight:800;color:var(--ink);line-height:1.35}
.section-title::before{content:'';width:4px;height:22px;background:var(--primary);border-radius:4px;display:inline-block}
.section-title small{font-size:15px;font-weight:400;color:var(--faint);margin-left:4px}
.section-link{font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:7px;font-weight:600}
.section-link i{transition:transform .2s}
.section-link:hover i{transform:translateX(3px)}
.sub-line{color:var(--faint);font-size:15px;line-height:1.8;margin-bottom:26px}
.text-center{text-align:center;justify-content:center}
.mb_0{margin-bottom:0!important}

/* ===== Hero ===== */
.hero-section{position:relative;background:linear-gradient(135deg,#E9F2FF 0%,#F2F7FD 58%,#FDF6F2 100%);overflow:hidden;padding:84px 0 72px}
.hero-section::before{content:'';position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.17;z-index:0}
.hero-section::after{content:'';position:absolute;top:0;right:0;width:100%;height:100%;background:radial-gradient(circle at 80% 20%,rgba(33,101,227,.07),transparent 42%),radial-gradient(circle at 10% 90%,rgba(255,106,61,.06),transparent 40%);z-index:1;pointer-events:none}
.hero-row{position:relative;z-index:5}
.hero-content{display:flex;flex-direction:column;justify-content:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid #DCE7FA;box-shadow:0 2px 12px rgba(33,101,227,.06);border-radius:999px;padding:8px 18px;font-size:13px;color:var(--primary);font-weight:600;width:max-content;margin-bottom:22px}
.hero-eyebrow i{color:var(--accent)}
.hero-title{font-size:38px;line-height:1.28;font-weight:800;color:var(--ink);margin-bottom:18px}
.hero-title span{color:var(--primary)}
.hero-sub{font-size:16.5px;color:#44567a;line-height:1.9;max-width:600px;margin-bottom:28px}
.hero-sub strong{color:var(--ink)}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin-bottom:20px}
.hero-note{display:flex;align-items:center;gap:10px;color:var(--faint);font-size:13px;margin-top:6px}
.hero-note i{color:#2FA84F}
.hero-visual{position:relative;display:flex;align-items:center;justify-content:center}
.hero-visual-box{position:relative;text-align:center}
.hero-img-box{width:100%;max-width:310px;border-radius:22px;box-shadow:0 30px 80px rgba(33,101,227,.18);transform:rotate(2deg);overflow:hidden;border:6px solid #fff;margin-bottom:16px}
.hero-img-box img{width:100%;height:330px;object-fit:cover}
.hero-card1{position:absolute;left:-10px;bottom:36px;background:#fff;border-radius:14px;padding:12px 18px;box-shadow:var(--shadow-md);display:flex;align-items:center;gap:10px;font-size:13px;font-weight:600;border:1px solid #E9EEF6}
.hero-card1 i{color:#2FA84F}
.hero-card2{position:absolute;right:-8px;top:14px;background:#fff;border-radius:14px;padding:12px 17px;box-shadow:var(--shadow-md);display:flex;align-items:center;gap:9px;font-size:13px;font-weight:600}
.hero-card2 i{color:var(--accent)}
.hero-stat{display:flex;background:#fff;border-radius:16px;box-shadow:0 6px 30px rgba(33,101,227,.08);padding:14px 24px;margin-top:18px;gap:28px;justify-content:center;border:1px solid #EAF1FB}
.hero-stat-item{text-align:center}
.hero-stat-item .num{font-size:24px;font-weight:800;color:var(--primary)}
.hero-stat-item .lbl{font-size:12px;color:var(--faint)}

/* ===== Trust Bar ===== */
.trust-section{background:#fff;border-bottom:1px solid var(--line);padding:24px 0;margin-top:-1px}
.trust-item{display:flex;align-items:center;justify-content:center;gap:15px;text-align:left;padding:10px 0}.trust-icon{width:48px;height:48px;border-radius:12px;background:var(--primary-light);color:var(--primary);font-size:20px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.trust-item h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:2px}
.trust-item p{font-size:12.8px;color:var(--faint)}

/* ===== Benefit / Feature ===== */
.benefit-grid .benefit-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);border-left:4px solid var(--primary);box-shadow:var(--shadow-sm);padding:24px 22px;display:flex;gap:16px;align-items:flex-start;height:100%;transition:all .25s ease}
.benefit-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:var(--border-blue)}
.benefit-icon{width:48px;height:48px;border-radius:14px;background:#F1F6FE;color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:19px;flex-shrink:0}
.benefit-content h4{font-size:16.5px;font-weight:700;color:var(--ink);margin-bottom:5px;display:flex;align-items:center;gap:6px}
.benefit-content h4 i{color:var(--accent);font-size:14px}
.benefit-content p{font-size:13.8px;color:var(--sub);line-height:1.75;margin-bottom:0}

/* ===== Category Matrix ===== */
.matrix-section{padding:84px 0}
.matrix-card{background:#fff;border-radius:18px;overflow:hidden;border:1px solid var(--line);display:flex;flex-direction:column;height:100%;position:relative;transition:all .28s ease;box-shadow:var(--shadow-sm)}
.matrix-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--border-blue)}
.matrix-card-top{padding:28px 30px 22px;display:flex;flex-direction:column;gap:14px;flex:1}
.matrix-label{display:flex;justify-content:space-between;align-items:center;position:relative;z-index:3}
.matrix-card-img{position:relative;overflow:hidden}
.matrix-card-img img{width:100%;height:220px;object-fit:cover;transition:transform .3s}
.matrix-card:hover .matrix-card-img img{transform:scale(1.05)}
.matrix-card-body{padding:22px 26px 26px;position:relative;z-index:2;background:#fff;flex:1}
.matrix-card-body h3{font-size:20px;font-weight:800;color:var(--ink);margin-bottom:9px}
.matrix-card-body h3 span{color:var(--primary)}
.matrix-card-body p{font-size:14px;color:var(--sub);line-height:1.8;margin-bottom:18px}
.matrix-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px;position:relative;z-index:4}
.matrix-bottom{margin-top:auto;padding-top:8px}
.matrix-row{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:stretch}

/* ===== Image Feature Cards ===== */
.feature-card-row{display:grid;gap:30px;grid-template-columns:repeat(2,1fr)}
.feature-card{border-radius:18px;background:#fff;display:flex;align-items:center;border:1px solid var(--line);overflow:hidden;box-shadow:var(--shadow-sm);transition:all .3s ease}
.feature-card:hover{border-color:var(--border-blue);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.feature-card .f-img{flex:0 0 154px;height:165px;overflow:hidden;position:relative}
.feature-card .f-img img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.feature-card:hover .f-img img{transform:scale(1.07)}
.feature-card .f-body{padding:20px 24px;flex:1}
.feature-card .f-cat{font-size:12px;color:var(--primary);font-weight:600;margin-bottom:6px;display:inline-flex;align-items:center;gap:5px}
.feature-card h3{font-size:17.5px;font-weight:700;color:var(--ink);line-height:1.5;margin-bottom:7px}
.feature-card h3 a{color:inherit}
.feature-card h3 a:hover{color:var(--primary)}
.feature-card p{font-size:13px;color:var(--faint);line-height:1.6;margin-bottom:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ===== News Section ===== */
.news-section{background:#F0F5FC;padding:84px 0}
.news-section .section-title-wrap{max-width:1200px;margin-left:auto;margin-right:auto}
.news-main-wrap{border-radius:20px;background:#fff;box-shadow:0 4px 30px rgba(0,0,0,.03);border:1px solid var(--line)}
.news-item-wrap{padding:0}
.news-list-item{display:flex;align-items:center;padding:22px 0;border-bottom:1px solid #EEF2F8;margin:0 30px;transition:background .25s}
.news-list-item:last-child{border-bottom:0}
.news-thumb{width:118px;height:78px;flex-shrink:0;border-radius:10px;overflow:hidden;margin-right:20px;position:relative}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s}
.news-list-item:hover .news-thumb img{transform:scale(1.06)}
.news-content{flex:1;min-width:0;padding-right:8px}
.news-content .tag{font-size:11.5px;padding:3px 10px}
.news-title{font-size:16.5px;color:var(--ink);font-weight:700;line-height:1.5;margin-top:5px;display:block}
.news-title a{color:inherit}
.news-title a:hover{color:var(--primary)}
.news-excerpt{font-size:13px;color:var(--faint);margin-top:5px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-meta-right{display:flex;flex-direction:column;align-items:flex-end;flex-shrink:0;gap:6px;margin-left:18px}
.news-date{font-size:12px;color:#8A95AA}
.news-arrow{color:#C7D2E5;font-size:14px}
.news-list-item:hover .news-arrow{color:var(--primary);transform:translateX(3px)}
.news-viewall{margin-top:26px;text-align:center}
.news-empty{background:#fff;border-radius:20px;border:1px dashed #C2D4EF;padding:52px 20px;text-align:center}
.news-empty-icon{width:80px;height:80px;border-radius:50%;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:28px;margin:0 auto 18px}
.news-empty p{font-size:14px;color:var(--sub)}

/* ===== Testimonials ===== */
.testimonial-section{padding:84px 0;background:#fff}
.orbit{position:relative}
.orbit .orbit-wrapper{max-width:1080px;margin-left:auto;margin-right:auto}
.orbit .orbit-bullets,.orbit .orbit-controls{display:none}
.testimonial-track{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:center}
.testimonial-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px;transition:all .25s ease;box-shadow:var(--shadow-sm);height:100%}
.testimonial-card.center-card{border-color:var(--border-blue);box-shadow:var(--shadow-md);transform:translateY(-8px)}
.testimonial-card:hover{box-shadow:var(--shadow-md)}
.t-stars{display:flex;gap:2px;margin-bottom:14px;color:#FFB800}
.t-stars i{font-size:15px}
.t-text{font-size:14.5px;color:#39476a;line-height:1.85;margin-bottom:24px}
.t-user{display:flex;align-items:center;gap:10px;border-top:1px solid #F0F4FA;padding-top:16px}
.t-avatar{width:38px;height:38px;border-radius:50%;background:#DCE8FA;display:flex;align-items:center;justify-content:center;color:var(--primary);font-weight:700;font-size:14px;flex-shrink:0;overflow:hidden}
.t-avatar img{width:100%;height:100%;object-fit:cover}
.t-user-info{line-height:1.3}
.t-user-info .name{font-size:14px;font-weight:700;color:var(--ink)}
.t-user-info .time{font-size:12px;color:var(--faint)}
.testimonial-dots{display:flex;gap:6px;justify-content:center;margin-top:24px}
.testimonial-dots span{width:8px;height:8px;background:#DBE4F2;border-radius:99px;transition:all .3s;cursor:pointer}
.testimonial-dots span.active{width:28px;background:var(--primary)}

/* ===== FAQ ===== */
.faq-section{padding:84px 0;background:var(--bg)}
.faq-wrap{max-width:900px;margin:0 auto;padding:0 10px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden;transition:box-shadow .25s, border-color .25s}
.faq-item.active{border-color:var(--border-blue);box-shadow:0 8px 26px rgba(33,101,227,.08)}
.faq-q{display:flex;justify-content:space-between;align-items:center;padding:21px 28px 21px 24px;cursor:pointer;gap:14px}
.faq-q h4{font-size:16px;font-weight:700;color:var(--ink);margin:0;line-height:1.5;flex:1}
.faq-q .icon{width:28px;height:28px;background:var(--primary-light);border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .3s}
.faq-q .icon i{font-size:13px;color:var(--primary);transition:transform .3s}
.faq-item.active .faq-q .icon{background:var(--primary)}
.faq-item.active .faq-q .icon i{color:#fff;transform:rotate(45deg)}
.faq-a{padding:0 24px 0 24px;max-height:0;overflow:hidden;transition:max-height .35s ease;border-left:3px solid #FFD6C8;margin-left:26px}
.faq-item.active .faq-a{max-height:400px;padding-bottom:18px}
.faq-a p{font-size:14.5px;color:var(--sub);line-height:1.9;padding-top:6px;margin:0}
.faq-a p a{color:var(--primary)}
.faq-side{display:flex;justify-content:center;margin-top:6px}
.faq-help{margin-top:24px;background:var(--primary-light);border-radius:14px;padding:18px 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.faq-help span{font-size:15px;color:var(--ink);font-weight:600}
.faq-help span i{color:var(--accent)}

/* ===== CTA + Guarantee ===== */
.cta-guarantee{padding:64px 0 84px;background:#fff}
.cta-main-box{background:linear-gradient(135deg,#E4EEFF,#F5F9FF);border-radius:22px;padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;border:1px solid var(--border-blue)}
.cta-text h2{font-size:25px;font-weight:800;color:var(--ink);margin-bottom:9px;line-height:1.4}
.cta-text h2 i{color:var(--primary);margin-right:6px}
.cta-text p{font-size:14.5px;color:var(--sub);line-height:1.7;max-width:650px;margin:0}
.cta-main-btn{flex-shrink:0}
.guarantee-wrap{margin-top:60px}
.guarantee-item{display:flex;gap:10px;align-items:flex-start;margin-bottom:15px;font-size:14px;color:var(--sub);line-height:1.6}
.guarantee-item i{color:#2FA84F;font-size:15px;margin-top:4px}

/* ===== Bottom brand matrix ===== */
.brand-matrix-section{padding:65px 0 80px;background:var(--bg)}
.brand-matrix-holder{display:grid;grid-template-columns:1fr 1fr 1.5fr;gap:26px}
.small-col{display:flex;flex-direction:column;gap:16px}
.small-col-card{background:#fff;border-radius:15px;border:1px solid var(--line);padding:22px;box-shadow:var(--shadow-sm);transition:all .25s ease}
.small-col-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:var(--border-blue)}
.small-col-card h4{font-size:15.5px;display:flex;gap:8px;align-items:center;font-weight:700;color:var(--ink);margin-bottom:6px}
.small-col-card h4 i{color:var(--primary);font-size:16px}
.small-col-card p{font-size:13px;color:var(--sub);margin-bottom:0;line-height:1.7}
.wide-safe-card{background:linear-gradient(135deg,#E8F0FF,rgba(255,213,198,.6));border-radius:16px;padding:30px;display:flex;flex-direction:column;justify-content:center;border:1px solid #dce9ff;position:relative;overflow:hidden}
.wide-safe-card::after{content:'';position:absolute;right:-40px;top:-40px;width:150px;height:150px;border-radius:50%;background:rgba(255,106,61,.08)}
.wide-safe-card h3{font-size:20px;font-weight:800;color:var(--ink);margin-bottom:10px}
.wide-safe-card p{font-size:14px;color:#4E6283;line-height:1.75;margin-bottom:20px}
.wide-safe-card p i{color:var(--accent);margin-right:3px}
.safe-stat-row{display:flex;gap:20px;flex-wrap:wrap;margin-top:4px}
.safe-stat{background:rgba(255,255,255,.7);border-radius:10px;padding:8px 16px;border:1px solid rgba(255,255,255,.8)}
.safe-stat b{display:block;font-size:18px;color:var(--primary)}
.safe-stat span{font-size:12px;color:var(--faint)}

/* ===== CSS Helpers ===== */
.flex-start{display:flex;align-items:flex-start;gap:20px}
.space-between{display:flex;align-items:center;justify-content:space-between}
.mt-10{margin-top:10px}
.mt-16{margin-top:16px}
.mt-24{margin-top:24px}
.mt-40{margin-top:40px}
.gap-20{gap:20px}
.rounded-img{border-radius:12px}

/* ===== Responsive ===== */
@media screen and (max-width:1024px){
  .matrix-row{grid-template-columns:1fr;gap:26px}
  .feature-card-row{grid-template-columns:1fr 1fr}
  .testimonial-track{grid-template-columns:repeat(2,1fr)}
  .testimonial-card.center-card{transform:none;border-color:var(--border-blue)}
  .brand-matrix-holder{grid-template-columns:1fr 1fr}
  .wide-safe-card{grid-column:span 2}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .section{padding:64px 0}
  .news-section{padding:64px 0}
  .hero-title{font-size:30px}
  .hero-visual{margin-top:40px}
  .footer-safe .grid-container{justify-content:center}
}
@media screen and (max-width:768px){
  .header-main-row{flex-direction:row;align-items:center}
  .brand-text{font-size:15px}
  .brand-icon{width:32px;height:32px;font-size:14px;border-radius:9px}
  .header-search-box{display:none}
  .header-mobile-search{display:inline-flex;width:40px;height:40px;background:#F2F5FA;border-radius:50%;align-items:center;justify-content:center;color:var(--primary);border:0;cursor:pointer}
  .header-login-btn{padding:0 14px}
  .channel-tab-inner{padding:0 7px}
  .section{padding:46px 0}
  .news-section{padding:46px 0}
  .hero-section{padding:50px 0 52px}
  .hero-title{font-size:24px;line-height:1.45}
  .hero-sub{font-size:15.5px;line-height:1.75}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%;height:50px;padding:0 22px}
  .hero-note{justify-content:center}
  .hero-visual{margin-top:28px}
  .hero-img-box img{height:250px}
  .hero-stat{gap:14px;padding:12px 8px}
  .hero-stat-item .num{font-size:18px}
  .benefit-grid .cell{padding-bottom:14px}
  .matrix-card{padding:0}
  .feature-card-row{grid-template-columns:1fr}
  .feature-card .f-img{flex-basis:120px;height:140px}
  .news-list-item{margin:0 16px;flex-wrap:wrap;padding:18px 0}
  .news-thumb{width:100%;height:146px;margin-right:0;margin-bottom:12px}
  .news-meta-right{flex-direction:row;justify-content:space-between;width:100%;margin-left:0}
  .news-arrow{margin-left:10px}
  .testimonial-track{grid-template-columns:1fr}
  .testimonial-card.center-card{transform:none}
  .footer-grid{grid-template-columns:1fr;gap:22px}
  .brand-matrix-holder{grid-template-columns:1fr}
  .wide-safe-card{grid-column:auto}
  .cta-main-box{padding:26px 20px}
  .cta-main-box .btn{width:100%;justify-content:center}
  .header-top{padding-left:14px;padding-right:14px}
}
@media screen and (max-width:520px){
  .grid-container{padding-left:14px;padding-right:14px}
  .section-title{font-size:20px}
  .section-title small{display:none}
  .footer-tech{display:none}
  .feature-card{flex-direction:column}
  .feature-card .f-img{width:100%;height:150px;flex-basis:auto}
  .channel-tab{padding:7px 13px;font-size:13.5px}
  .brand-text{font-size:14px}
  .header-login-btn{height:37px;font-size:12.5px;padding:0 12px}
  .header-mobile-search{width:34px;height:34px}
  .hero-title{font-size:22.5px}
  .hero-card1,.hero-card2{display:none}
  .faq-q{padding:16px 16px}
  .grid-matrix-2 .matrix-card-img img{height:190px}
}

/* roulang page: article */
:root{
  --primary:#2165E3;
  --primary-light:#EEF4FF;
  --accent:#FF6A3D;
  --accent-deep:#E8552D;
  --accent-light:#FFF1EA;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --text:#1B2A4A;
  --body-text:#2A3B56;
  --muted:#5C6B84;
  --soft:#78879E;
  --border:#E4EAF3;
  --line:#E6ECF5;
  --blue-light:#BBD2FC;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(33,101,227,0.06);
  --shadow-md:0 10px 22px rgba(33,101,227,0.10);
  --shadow-lg:0 12px 28px rgba(33,101,227,0.14);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  font-feature-settings:"tnum";
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s,background .2s,border-color .2s,box-shadow .2s}
button,input,select,textarea{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%}
.grid-x{display:flex;flex-wrap:wrap}

/* Header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:#fff;border-bottom:1px solid var(--border);
  box-shadow:0 2px 12px rgba(27,42,74,.03);
}
.site-header-top{background:#fff;border-bottom:1px solid #EDF1F7}
.header-flex{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px 20px;max-width:1280px}
.brand-logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;outline:none}
.brand-badge{
  width:42px;height:42px;border-radius:12px;
  background:linear-gradient(135deg,#2165E3,#4A8AF0);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:18px;box-shadow:0 8px 18px rgba(33,101,227,.25);
  transition:transform .2s;
}
.brand-logo:hover .brand-badge{transform:translateY(-2px)}
.brand-name{
  font-size:20px;font-weight:800;color:var(--text);letter-spacing:.2px;
  line-height:1.3;white-space:nowrap;
}
.brand-name small{
  display:block;font-size:11px;font-weight:500;color:var(--soft);letter-spacing:.4px;
}
.header-tools{display:flex;align-items:center;gap:12px}
.header-search{
  display:flex;align-items:center;gap:8px;
  width:260px;height:42px;padding:0 14px;
  background:var(--bg);border:1px solid var(--line);border-radius:999px;
  color:var(--soft);transition:box-shadow .2s,border-color .2s;
}
.header-search:focus-within{border-color:var(--blue-light);box-shadow:0 0 0 4px rgba(33,101,227,.12);background:#fff}
.header-search input{border:0;outline:none;background:transparent;font-size:14px;color:var(--text);width:100%}
.header-search input::placeholder{color:#A6B3C7}
.btn-header-login{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 22px;border-radius:999px;
  background:var(--accent);color:#fff;font-size:14px;font-weight:600;
  box-shadow:0 6px 16px rgba(255,106,61,.28);
  transition:all .2s;
}
.btn-header-login:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px)}
.btn-header-login:active{transform:translateY(0)}
.mobile-search-toggle{
  display:none;width:42px;height:42px;align-items:center;justify-content:center;
  background:var(--bg);border:1px solid var(--line);border-radius:50%;color:var(--primary);
  cursor:pointer;outline:none;
}

/* Channel tabs */
.channel-tabs{
  display:flex;align-items:center;
  max-width:1280px;margin:0 auto;padding:0 12px;
  gap:6px;overflow-x:auto;white-space:nowrap;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-tabs::-webkit-scrollbar{display:none;height:0}
.channel-tab{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 16px;margin:8px 2px;
  font-size:14px;font-weight:500;color:#52617A;
  border-radius:999px;line-height:1;flex-shrink:0;
  transition:color .2s,background .2s;
}
.channel-tab i{font-size:13px;opacity:.85}
.channel-tab:hover{background:var(--primary-light);color:var(--primary)}
.channel-tab:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.channel-tab.active{background:var(--primary);color:#fff;box-shadow:0 6px 14px rgba(33,101,227,.22)}
.channel-tab.active i{opacity:1}

/* Article hero */
.article-head{
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  position:relative;
  overflow:hidden;
}
.article-head::before{
  content:"";
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center 80% / cover no-repeat;
  opacity:.08;
}
.article-head-inner{
  max-width:940px;margin:0 auto;padding:40px 22px 36px;
  position:relative;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;
  font-size:13px;color:var(--soft);margin-bottom:20px;gap:8px;
}
.breadcrumb a{color:var(--soft);line-height:1}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb i{font-size:10px;color:#C5CFE0}
.breadcrumb .current{color:#475977;max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.category-pill{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary-light);color:var(--primary);
  font-size:13px;font-weight:600;padding:6px 16px;border-radius:999px;
  margin-bottom:14px;
}
.article-title{
  font-size:32px;font-weight:800;line-height:1.4;color:var(--text);
  letter-spacing:.01em;margin:0 0 20px;
}
.article-meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px 22px;
  color:var(--soft);font-size:13px;border-top:1px solid #F0F3F8;padding-top:18px;
}
.article-meta-row span{display:inline-flex;align-items:center;gap:7px}
.article-meta-row i{color:var(--primary);opacity:.75}
.article-meta-row .meta-cat{color:var(--primary);background:rgba(33,101,227,.06);padding:4px 12px;border-radius:999px}

/* Main reading layout */
.article-main{
  background:#fff;
  padding:42px 0 70px;
}
.article-layout{
  max-width:900px;margin:0 auto;padding:0 22px;
  display:flex;justify-content:space-between;align-items:flex-start;gap:42px;
}
.article-content-col{width:68%;min-width:0}
.article-toc-col{width:27%;flex-shrink:0;position:sticky;top:92px;margin-top:28px}
.article-toc-card{
  background:var(--bg);border:1px solid var(--line);border-radius:16px;
  padding:20px 18px;
}
.article-toc-card h4{
  font-size:13px;font-weight:700;color:var(--text);
  border-bottom:1px solid var(--line);padding-bottom:10px;margin-bottom:14px;
  display:flex;align-items:center;gap:7px;
}
.article-toc-card h4 i{color:var(--primary)}
.article-toc-card ul{list-style:none;margin:0;padding:0}
.article-toc-card li{margin-bottom:5px}
.article-toc-card a{
  display:block;padding:6px 10px;border-radius:8px;
  color:var(--muted);font-size:13px;line-height:1.5;
  transition:background .2s,color .2s,padding-left .2s;
}
.article-toc-card a::before{content:"·";color:var(--primary);font-weight:700;margin-right:6px}
.article-toc-card a:hover{background:#fff;color:var(--primary);padding-left:14px}

/* Article body */
.article-body{font-size:16px;color:var(--body-text);line-height:1.9;word-wrap:break-word}
.article-body p{margin-bottom:20px}
.article-body h2{
  font-size:22px;font-weight:800;color:var(--text);
  border-left:4px solid var(--primary);padding-left:13px;
  margin:36px 0 16px;line-height:1.5;
}
.article-body h3{
  font-size:17px;font-weight:700;color:var(--text);
  margin:28px 0 12px;line-height:1.6;
}
.article-body h4{
  font-size:16px;font-weight:700;color:var(--text);
  margin:22px 0 10px;
}
.article-body ul,.article-body ol{
  padding-left:24px;margin-bottom:22px;line-height:2;
}
.article-body li{margin-bottom:6px}
.article-body a{color:var(--primary);font-weight:500;border-bottom:1px solid rgba(33,101,227,.2)}
.article-body a:hover{color:var(--accent);border-color:var(--accent)}
.article-body img{
  border-radius:12px;margin:24px 0;
  width:auto;max-height:520px;object-fit:cover;
  border:1px solid var(--line);background:#EAF1FA;
}
.article-body img+em{
  display:block;text-align:center;font-size:13px;color:var(--soft);
  margin-top:-14px;margin-bottom:24px;font-style:normal;
}
.article-body blockquote{
  background:var(--primary-light);border-left:4px solid var(--primary);
  padding:18px 22px;margin:24px 0;border-radius:0 12px 12px 0;
  color:var(--text);font-size:15px;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;
}
.article-body th,.article-body td{
  border:1px solid var(--line);padding:10px 14px;text-align:left;
}
.article-body th{background:var(--bg);color:var(--text);font-weight:600}
.article-body code{
  background:#EEF3FC;border-radius:4px;padding:2px 7px;
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.92em;color:var(--primary);
}

/* Article tags */
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding-top:26px;margin-top:34px;border-top:1px solid var(--line);
}
.article-tags span{
  background:#F4F7FC;border:1px solid var(--line);
  padding:5px 14px;border-radius:999px;font-size:13px;color:var(--muted);
}
.article-tags i{color:var(--soft);margin-right:6px}

/* Related block */
.related-block{
  background:var(--bg);
  padding:64px 0 76px;
  border-top:1px solid var(--line);
}
.section-head{
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:30px;gap:20px;
}
.section-head h2{
  font-size:24px;font-weight:800;color:var(--text);
  display:flex;align-items:center;gap:12px;
}
.section-head h2::before{
  content:"";display:inline-block;width:5px;height:24px;border-radius:4px;
  background:var(--primary);
}
.section-head .section-link{
  font-size:14px;color:var(--muted);
  display:inline-flex;align-items:center;gap:6px;
}
.section-head .section-link:hover{color:var(--primary)}
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.related-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--shadow-sm);transition:box-shadow .25s,transform .25s,border-color .25s;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--blue-light)}
.related-thumb{height:180px;overflow:hidden;background:#EAF1FA;border-bottom:1px solid var(--line)}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.related-card:hover .related-thumb img{transform:scale(1.03)}
.related-info{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.related-info h3{font-size:16px;font-weight:700;color:var(--text);line-height:1.6;margin-bottom:8px}
.related-info h3 a:hover{color:var(--primary)}
.related-info p{
  font-size:13px;color:var(--soft);line-height:1.8;
  margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-meta{
  margin-top:auto;display:flex;justify-content:space-between;align-items:center;
  font-size:12px;color:var(--soft);
}
.related-meta .more{
  font-size:13px;color:var(--primary);font-weight:500;
  display:inline-flex;align-items:center;gap:5px;
}

/* Return button */
.article-back{
  text-align:center;padding-top:36px;
}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--primary);color:var(--primary);
  height:44px;padding:0 28px;border-radius:var(--radius-sm);
  font-size:14px;font-weight:600;line-height:1;
}
.btn-ghost:hover{background:var(--primary-light);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-ghost:active{transform:translateY(0)}

/* Not found */
.not-found-section{
  min-height:70vh;background:#fff;
  display:flex;align-items:center;justify-content:center;padding:60px 20px;
}
.not-found-box{
  text-align:center;max-width:560px;padding:52px 40px;
  background:var(--bg);border:1px solid var(--line);
  border-radius:22px;
}
.not-found-box span.icon{
  display:flex;align-items:center;justify-content:center;
  width:80px;height:80px;border-radius:50%;
  background:var(--primary-light);color:var(--primary);
  font-size:34px;margin:0 auto 20px;
}
.not-found-box h1{font-size:28px;color:var(--text);margin-bottom:14px}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent);color:#fff;height:48px;padding:0 28px;
  border-radius:var(--radius-sm);font-size:15px;font-weight:600;
  box-shadow:0 8px 18px rgba(255,106,61,.28);outline:none;
}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(255,106,61,.2)}
.btn-primary:focus-visible{outline:3px solid rgba(255,106,61,.35)}

/* Footer */
.site-footer{background:#fff;border-top:1px solid var(--line)}
.footer-safe{
  background:var(--bg);border-bottom:1px solid var(--line);
  padding:18px 0;
}
.footer-safe .container{
  display:flex;gap:22px;justify-content:space-between;
  flex-wrap:wrap;align-items:center;
}
.footer-safe span{
  font-size:13px;color:var(--text);font-weight:500;
  display:inline-flex;align-items:center;gap:9px;
}
.footer-safe i{
  color:var(--primary);font-size:16px;
  width:34px;height:34px;border-radius:9px;background:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-sm);
}
.footer-main{
  padding:70px 0 38px;
  background:#fff;
}
.footer-grid{
  display:grid;grid-template-columns:2.2fr 1.2fr 1.2fr 1.5fr;
  gap:48px;
}
.footer-brand h4{
  font-size:18px;font-weight:800;color:var(--text);
  display:flex;align-items:center;gap:10px;margin-bottom:16px;
}
.footer-brand h4 .brand-icon{
  width:36px;height:36px;border-radius:10px;
  background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;
}
.footer-brand p{
  color:var(--soft);font-size:14px;line-height:1.9;margin-bottom:20px;max-width:340px;
}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;border-radius:10px;
  background:var(--bg);border:1px solid transparent;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--muted);font-size:16px;transition:all .2s;
}
.footer-social a:hover{
  background:var(--primary);color:#fff;border-color:var(--primary);
  transform:translateY(-3px);
}
.footer-col h5{
  font-size:15px;font-weight:700;color:var(--text);margin-bottom:20px;
  border-left:3px solid var(--primary);padding-left:10px;
}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{
  color:var(--muted);font-size:14px;display:inline-flex;align-items:center;gap:7px;
  transition:color .2s,padding-left .2s;
}
.footer-col ul a i{font-size:10px;color:#B6C3D6}
.footer-col ul a:hover{color:var(--primary);padding-left:5px}
.footer-contact p{
  font-size:14px;color:var(--soft);display:flex;align-items:flex-start;gap:10px;margin-bottom:14px;
}
.footer-contact i{color:var(--primary);margin-top:4px}
.footer-bottom{
  background:#F9FBFF;border-top:1px solid var(--line);
}
.footer-bottom-inner{
  max-width:1200px;margin:0 auto;padding:20px;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;
}
.footer-copyright{color:var(--soft);text-align:center}
.footer-legal{
  color:var(--soft);display:flex;align-items:center;gap:12px;
}
.footer-legal a{color:var(--soft)}
.footer-legal a:hover{color:var(--primary)}
.footer-legal span{opacity:.5}

@media screen and (max-width:1024px){
  .article-layout{max-width:796px;gap:26px}
  .article-content-col{width:auto;flex:1}
  .article-toc-col{width:210px}
  .header-flex{max-width:100%;padding:12px 16px}
  .header-search{width:200px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media screen and (max-width:900px){
  .article-toc-col{display:none}
  .article-content-col{width:100%}
}
@media screen and (max-width:800px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .brand-name{font-size:18px}
  .brand-name small{display:none}
  .header-search{display:none;position:absolute;top:60px;left:0;width:100%;background:#fff;border-radius:0;padding:10px 16px;box-shadow:0 10px 20px rgba(0,0,0,.06);cursor:auto}
  .mobile-search-toggle{display:inline-flex}
  .header-search.is-open{display:flex;width:100%;left:0;top:72px;border-top:1px solid var(--line)}
  .header-tools{position:relative}
  .btn-header-login{width:42px;height:42px;padding:0;border-radius:50%;justify-content:center}
  .btn-header-login span{display:none}
  .article-head-inner{padding:32px 18px 26px}
  .article-title{font-size:27px;line-height:1.5}
  .footer-safe .container{gap:12px;justify-content:center}
  .footer-safe span{font-size:12px;gap:7px}
  .footer-safe i{width:28px;height:28px;font-size:14px}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
}
@media screen and (max-width:640px){
  .container{padding:0 16px}
  .brand-badge{width:38px;height:38px;font-size:16px;border-radius:11px}
  .brand-name{font-size:16px;letter-spacing:0}
  .channel-tab{padding:8px 12px;font-size:13px}
  .header-flex{padding:10px 12px}
  .article-head-inner{padding:26px 16px 22px}
  .article-title{font-size:22px;margin-bottom:16px}
  .article-meta-row{gap:10px 14px;font-size:12px}
  .article-main{padding:20px 0 50px}
  .article-layout{padding:0 16px}
  .article-body{font-size:15px;line-height:1.85}
  .article-body h2{font-size:19px;padding-left:11px;margin:28px 0 14px}
  .article-body h3{font-size:16px}
  .related-block{padding:48px 0 54px}
  .related-grid{grid-template-columns:1fr}
  .section-head h2{font-size:21px}
  .section-link{font-size:13px}
  .footer-safe{padding:6px 0}
  .footer-main{padding:48px 0 12px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom-inner{flex-direction:column;justify-content:center;font-size:12px}
  .footer-legal{row-gap:4px}
  .not-found-box{padding:44px 20px}
  .not-found-box h1{font-size:24px}
  .btn-primary{width:100%;height:48px}
}

/* roulang page: category1 */
:root{
  --primary:#2165E3;
  --primary-dark:#174FB8;
  --primary-soft:#EEF4FF;
  --accent:#FF6A3D;
  --accent-dark:#E8552D;
  --accent-soft:#FFF0EB;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --heading:#1B2A4A;
  --text:#3B4765;
  --muted:#78879E;
  --border:#E4EAF3;
  --border-deep:#C6D2E2;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(33,101,227,.06);
  --shadow-lg:0 16px 40px rgba(33,101,227,.16);
  --transition:all .25s ease;
  --font-system:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-system);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  min-height:100%;
}
a{
  color:var(--primary);
  text-decoration:none;
  transition:var(--transition);
}
a:hover{color:var(--primary-dark)}
img{max-width:100%;display:block}
ul,ol,p,h1,h2,h3,h4,h5,figure{margin:0}
button,input,textarea{font-family:inherit;font-size:inherit}
input:focus,textarea:focus,button:focus,a:focus{outline:none}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:3px solid rgba(33,101,227,.28);
  outline-offset:2px;
}
.grid-container{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.container{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:var(--radius-sm);
  font-weight:500;
  border:1px solid transparent;
  cursor:pointer;
  transition:var(--transition);
  font-size:15px;
  margin-bottom:0;
  white-space:nowrap;
  line-height:1;
}
.button i{font-size:14px}
.btn-primary{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff !important;
}
.btn-primary:hover{
  background:var(--accent-dark);
  border-color:var(--accent-dark);
  color:#fff !important;
  transform:translateY(-2px);
  box-shadow:0 10px 20px rgba(232,85,45,.24);
}
.btn-primary:active{
  transform:translateY(1px);
  box-shadow:0 4px 8px rgba(232,85,45,.16);
}
.btn-outline{
  background:#fff;
  border-color:var(--primary);
  color:var(--primary) !important;
  font-weight:500;
}
.btn-outline:hover{
  background:var(--primary-soft);
  border-color:var(--primary-dark);
  transform:translateY(-2px);
  box-shadow:0 8px 18px rgba(33,101,227,.12);
}
.btn-outline:active{
  transform:translateY(0);
}
.btn-blue{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff !important;
}
.btn-blue:hover{
  background:var(--primary-dark);
  border-color:var(--primary-dark);
  color:#fff !important;
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(33,101,227,.22);
}

/* ---------- Header ---------- */
.site-header{
  background:#fff;
  box-shadow:0 4px 22px rgba(27,42,74,.06);
  position:relative;
  z-index:40;
}
.header-top{
  border-bottom:1px solid #eef1f6;
  background:#fff;
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:72px;
}
.brand-logo{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:var(--heading) !important;
  font-size:22px;
  font-weight:800;
  letter-spacing:.2px;
  white-space:nowrap;
  flex-shrink:0;
}
.brand-logo:hover{color:var(--heading) !important}
.brand-icon{
  width:40px;
  height:40px;
  border-radius:12px;
  background:linear-gradient(135deg,#5A9BFF,#2165E3);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
  box-shadow:0 8px 18px rgba(33,101,227,.24);
  flex-shrink:0;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.header-search{
  display:flex;
  align-items:center;
  background:#F5F8FC;
  border:1px solid #E0E8F4;
  border-radius:999px;
  padding:0 16px;
  height:42px;
  width:280px;
  transition:var(--transition);
}
.header-search:focus-within{
  border-color:var(--primary);
  background:#fff;
  box-shadow:0 0 0 4px rgba(33,101,227,.08);
}
.header-search i{
  color:#8FA1BF;
  font-size:13px;
  margin-right:10px;
}
.header-search input{
  border:0;
  background:transparent;
  font-size:14px;
  color:var(--heading);
  outline:none;
  width:100%;
  margin:0;
}
.header-search input::placeholder{color:#9AA9C2}
.btn-login{
  height:42px;
  padding:0 22px;
  border-radius:10px;
  background:var(--accent);
  color:#fff !important;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  border:0;
  transition:var(--transition);
  cursor:pointer;
  box-shadow:0 6px 14px rgba(255,106,61,.2);
}
.btn-login:hover{
  background:var(--accent-dark);
  transform:translateY(-2px);
}
.channel-tabs{
  background:#fff;
  display:flex;
  align-items:center;
  gap:12px;
  padding:10px 24px;
  overflow-x:auto;
  scrollbar-width:none;
  border-bottom:1px solid #EDF1F7;
  width:100%;
  -webkit-overflow-scrolling:touch;
}
.channel-tabs::-webkit-scrollbar{display:none}
.channel-tab{
  font-size:14px;
  color:#5C6B84;
  font-weight:500;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 18px;
  border-radius:999px;
  white-space:nowrap;
  border:1px solid transparent;
  flex-shrink:0;
  transition:var(--transition);
  background:transparent;
}
.channel-tab i{font-size:12px;color:#8FA1BF;transition:var(--transition)}
.channel-tab:hover{
  background:var(--primary-soft);
  color:var(--primary);
}
.channel-tab:hover i{color:var(--primary)}
.channel-tab.active{
  background:var(--heading);
  color:#fff;
  box-shadow:0 4px 10px rgba(27,42,74,.18);
}
.channel-tab.active i{color:#AFC8FF}

/* ---------- Page Hero / Banner ---------- */
.category-banner{
  padding:64px 0 48px;
  background:
    radial-gradient(circle at 20% 30%,rgba(33,101,227,.08) 0,transparent 28%),
    radial-gradient(circle at 85% 20%,rgba(255,106,61,.1) 0,transparent 24%),
    linear-gradient(180deg,#F2F7FE 0,#F5F8FC 100%);
  border-bottom:1px solid var(--border);
}
.banner-card{
  display:grid;
  grid-template-columns:90px 1fr auto;
  align-items:center;
  gap:24px;
  background:#fff;
  border:1px solid #E7EDF7;
  box-shadow:var(--shadow-sm);
  border-radius:var(--radius-lg);
  padding:32px 36px;
}
.banner-icon{
  width:74px;
  height:74px;
  border-radius:20px;
  background:linear-gradient(145deg,#DCEBFF,var(--primary-soft));
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:28px;
  color:var(--primary);
}
.banner-text h1{
  font-size:32px;
  line-height:1.3;
  font-weight:800;
  color:var(--heading);
  padding:0;
  margin:0;
}
.banner-text p{
  font-size:15px;
  color:var(--muted);
  margin-top:8px;
  line-height:1.8;
}
.banner-meta{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:var(--accent-soft);
  color:var(--accent-dark);
  font-size:13px;
  font-weight:600;
  padding:8px 18px;
  border-radius:999px;
  white-space:nowrap;
  border:1px solid #FFD9CB;
}

/* ---------- Intro / count tag ---------- */
.cat-intro{
  padding:48px 0 20px;
}
.cat-intro-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
}
.cat-intro-copy{
  display:flex;
  align-items:flex-start;
  gap:18px;
  max-width:760px;
}
.cat-intro-copy i{
  font-size:22px;
  color:var(--primary);
  background:var(--primary-soft);
  border-radius:14px;
  width:48px;
  height:48px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
}
.cat-intro-copy h2{
  font-size:20px;
  font-weight:700;
  color:var(--heading);
  margin-bottom:6px;
}
.cat-intro-copy p{
  font-size:14px;
  color:var(--muted);
  line-height:1.8;
}
.cat-jump{
  display:flex;
  align-items:center;
  gap:12px;
}
.cat-jump a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  background:#fff;
  border:1px solid var(--border-deep);
  color:var(--heading);
  padding:9px 18px;
  border-radius:999px;
  font-weight:500;
  transition:var(--transition);
}
.cat-jump a:hover{
  border-color:var(--primary);
  background:var(--primary-soft);
  color:var(--primary);
}

/* ---------- Split Modules ---------- */
.split-section{
  padding:80px 0;
  position:relative;
}
.split-section.pad-top-sm{padding-top:24px}
.split-section.white-band{
  background:#fff;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.split-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:26px;
  transition:var(--transition);
}
.split-card:hover{
  box-shadow:var(--shadow-lg);
  border-color:#BBD2FC;
  transform:translateY(-3px);
}
.split-row{
  display:grid;
  grid-template-columns:1fr 1.1fr;
  gap:48px;
  align-items:center;
}
.image-left .split-media{order:1}
.image-left .split-content{order:2}
.image-right .split-media{order:2}
.image-right .split-content{order:1}
.split-media{
  border-radius:22px;
  overflow:hidden;
  box-shadow:0 10px 28px rgba(27,42,74,.12);
  border:4px solid #fff;
  background:#EAF1FA;
  min-height:300px;
  height:100%;
}
.split-media img{
  width:100%;
  height:100%;
  min-height:300px;
  object-fit:cover;
  transition:transform .8s ease;
}
.split-card:hover .split-media img{transform:scale(1.04)}
.module-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--primary);
  background:var(--primary-soft);
  border-radius:999px;
  padding:7px 16px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.3px;
  margin-bottom:18px;
}
.module-kicker i{font-size:11px}
.split-content h2{
  font-size:27px;
  font-weight:800;
  color:var(--heading);
  line-height:1.35;
  margin-bottom:14px;
}
.split-content > p{
  font-size:15px;
  color:var(--text);
  line-height:1.9;
  margin-bottom:18px;
}
.split-tips{
  list-style:none;
  padding:0;
  margin:0 0 28px;
  display:grid;
  gap:12px;
}
.split-tips li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  font-size:14px;
  line-height:1.7;
  color:var(--heading);
  background:#FBFDFF;
  border:1px solid #ECF1F8;
  border-radius:12px;
  padding:11px 14px;
}
.split-tips li i{
  color:var(--primary);
  background:var(--primary-soft);
  width:24px;
  height:24px;
  border-radius:8px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:11px;
  flex-shrink:0;
  margin-top:4px;
}
.link-arrow{
  font-size:14px;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--primary) !important;
}
.link-arrow i{
  font-size:13px;
  transition:transform .25s ease;
}
.link-arrow:hover i{
  transform:translateX(4px);
}
.section-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  background:var(--heading);
  color:#fff;
  border-radius:12px;
  font-weight:800;
  font-size:15px;
  margin-right:10px;
  vertical-align:middle;
}

/* ---------- FAQ ---------- */
.faq-section{
  padding:90px 0;
  background:linear-gradient(180deg,#fff 0,#F5F8FC 100%);
}
.faq-wrap{
  max-width:920px;
  margin:0 auto;
}
.faq-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  margin-bottom:34px;
  flex-wrap:wrap;
}
.faq-title{
  display:flex;
  align-items:center;
  gap:14px;
}
.faq-title .title-bar{
  width:5px;
  height:30px;
  background:var(--primary);
  border-radius:99px;
  flex-shrink:0;
}
.faq-title h2{
  font-size:28px;
  font-weight:800;
  color:var(--heading);
  margin:0;
}
.faq-list{
  display:grid;
  gap:14px;
}
.faq-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:18px;
  padding:0 10px;
  box-shadow:0 2px 6px rgba(33,101,227,.03);
  transition:var(--transition);
}
.faq-card summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 14px;
  font-size:16px;
  font-weight:700;
  color:var(--heading);
  border-radius:18px;
  transition:var(--transition);
}
.faq-card summary::-webkit-details-marker{display:none}
.faq-card summary .q-icon{
  color:var(--primary);
  background:var(--primary-soft);
  width:28px;
  height:28px;
  min-width:28px;
  border-radius:9px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  margin-right:6px;
}
.faq-card summary .chev{
  color:#A6B4CA;
  margin-left:auto;
  transition:transform .3s ease;
}
.faq-card[open]{
  border-color:#BBD2FC;
  box-shadow:var(--shadow-sm);
}
.faq-card[open] summary{
  padding-bottom:8px;
}
.faq-card[open] summary .chev{
  transform:rotate(180deg);
  color:var(--primary);
}
.faq-answer{
  padding:2px 18px 22px 58px;
  color:var(--text);
  font-size:14px;
  line-height:1.9;
  border-left:2px solid #FFD0C2;
  margin:0 16px 18px 18px;
}
.faq-answer p{margin:0}

/* ---------- CTA ---------- */
.cta-section{
  padding:70px 0 90px;
}
.cta-panel{
  background:linear-gradient(120deg,#F8FBFF,#EDF4FF 58%,#FCF4F1);
  border:1px solid #DCE6F5;
  border-radius:26px;
  padding:46px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  box-shadow:var(--shadow-sm);
  position:relative;
  overflow:hidden;
}
.cta-panel:after{
  content:"";
  position:absolute;
  width:220px;
  height:220px;
  border-radius:50%;
  background:rgba(33,101,227,.05);
  right:-70px;
  top:-80px;
}
.cta-text h2{
  font-size:25px;
  font-weight:800;
  color:var(--heading);
  margin-bottom:10px;
  line-height:1.4;
}
.cta-text p{
  font-size:15px;
  color:var(--muted);
  line-height:1.8;
  max-width:600px;
}
.cta-action{
  position:relative;
  z-index:2;
}

/* ---------- Footer ---------- */
.site-footer{
  background:#0D1B33;
  color:#B7C4DB;
  font-size:14px;
}
.site-footer a{
  color:#C8D4E8;
}
.site-footer a:hover{
  color:#fff;
}
.footer-safe{
  background:#10213F;
  border-bottom:1px solid #1B2C4D;
}
.footer-safe .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  min-height:64px;
  padding-top:12px;
  padding-bottom:12px;
}
.footer-safe span{
  color:#AFC0DA;
  font-size:13px;
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.footer-safe i{
  color:#7EA9FF;
  width:30px;
  height:30px;
  background:rgba(84,139,246,.12);
  border-radius:9px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
}
.footer-main{
  padding:58px 0 42px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2.1fr 1fr 1fr 1.5fr;
  gap:38px;
}
.footer-brand h4{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:21px;
  font-weight:800;
  margin:0 0 16px;
}
.footer-brand .brand-icon{
  width:32px;
  height:32px;
  font-size:14px;
  border-radius:9px;
}
.footer-brand p{
  color:#9AABC4;
  font-size:14px;
  line-height:1.9;
  max-width:400px;
  margin-bottom:18px;
}
.footer-social{
  display:flex;
  gap:10px;
}
.footer-social a{
  width:38px;
  height:38px;
  background:#1B2E4E;
  border-radius:11px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#8FA5C8;
  transition:var(--transition);
}
.footer-social a:hover{
  color:#fff;
  background:var(--primary);
  transform:translateY(-3px);
}
.footer-col h5{
  color:#EAF1FB;
  font-size:16px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-col ul{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:10px;
}
.footer-col ul a{
  color:#9AABC4;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.footer-col ul a i{
  font-size:10px;
  color:#6B83A8;
}
.footer-col ul a:hover{
  color:#fff;
}
.footer-contact p{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:#9AABC4;
}
.footer-contact i{
  color:#7EA9FF;
  margin-top:5px;
}
.footer-bottom{
  border-top:1px solid #1A2B48;
  background:#0B1628;
  padding:16px 0;
}
.footer-bottom-inner{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}
.footer-copyright{
  color:#778AAA;
  font-size:13px;
}
.footer-meta{
  color:#647A9D;
  font-size:13px;
  display:flex;
  gap:16px;
  align-items:center;
}

/* ---------- Responsive ---------- */
@media screen and (max-width:1024px){
  .banner-card{
    grid-template-columns:80px 1fr;
  }
  .banner-meta{
    grid-column:2/3;
    width:max-content;
  }
  .split-row{
    grid-template-columns:1fr;
    gap:24px;
  }
  .image-left .split-media,
  .image-left .split-content,
  .image-right .split-media,
  .image-right .split-content{
    order:auto;
  }
  .split-card{
    padding:20px;
  }
  .split-media img{
    min-height:280px;
  }
  .header-search{
    width:210px;
  }
  .cta-panel{
    padding:36px 28px;
  }
}
@media screen and (max-width:768px){
  .body{
    font-size:15px;
  }
  .container,.grid-container{
    padding:0 16px;
  }
  .footer-bottom-inner{
    padding:0 16px;
  }
  .header-inner{
    min-height:64px;
    gap:10px;
  }
  .brand-logo{
    font-size:18px;
    gap:8px;
  }
  .brand-icon{
    width:34px;
    height:34px;
    font-size:14px;
    border-radius:9px;
  }
  .header-search{
    display:none;
  }
  .btn-login{
    height:38px;
    padding:0 16px;
    font-size:13px;
  }
  .channel-tabs{
    padding:8px 12px;
  }
  .category-banner{
    padding:30px 0 24px;
  }
  .banner-card{
    grid-template-columns:1fr;
    padding:24px;
    gap:16px;
  }
  .banner-icon{
    width:58px;
    height:58px;
    border-radius:16px;
  }
  .banner-text h1{
    font-size:24px;
    line-height:1.35;
  }
  .banner-meta{
    grid-column:auto;
  }
  .split-section{
    padding:36px 0;
  }
  .split-card{
    padding:0;
    border:0;
    box-shadow:none;
    background:transparent;
  }
  .split-card:hover{
    transform:none;
  }
  .split-media{
    min-height:auto;
    height:auto;
    border-radius:16px;
  }
  .split-media img{
    min-height:220px;
  }
  .split-content h2{
    font-size:22px;
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:30px;
    padding:0 4px;
  }
  .footer-main{
    padding:44px 0 26px;
  }
  .faq-head{
    flex-direction:column;
    align-items:flex-start;
    gap:10px;
  }
  .faq-answer{
    padding-left:18px;
    margin-left:12px;
  }
  .faq-title h2{
    font-size:23px;
  }
  .cta-section{
    padding:42px 0 48px;
  }
  .cta-panel{
    padding:28px 22px;
    flex-direction:column;
    align-items:flex-start;
  }
  .cta-text h2{
    font-size:21px;
  }
  .button{
    height:44px;
    padding:0 18px;
  }
}
@media screen and (max-width:520px){
  .brand-logo{
    font-size:16px;
  }
  .brand-logo .brand-icon{
    width:30px;
    height:30px;
    font-size:12px;
  }
  .channel-tab{
    font-size:13px;
    padding:7px 14px;
  }
  .banner-media h1{
    font-size:21px;
  }
  .banner-icon i{
    font-size:20px;
  }
  .cat-intro-copy{
    flex-direction:column;
    align-items:flex-start;
    gap:10px;
  }
  .split-content h2{
    font-size:20px;
  }
  .split-section .container{
    padding:0 14px;
  }
  .split-tips li{
    flex-wrap:wrap;
  }
  .footer-grid{
    grid-template-columns:1fr;
  }
  .footer-safe .container{
    justify-content:flex-start;
  }
  .cta-action .button{
    width:100%;
  }
  .footer-bottom-inner{
    justify-content:center;
    text-align:center;
  }
  .footer-meta{
    justify-content:center;
  }
  .faq-card summary{
    font-size:15px;
    align-items:flex-start;
  }
  .faq-card summary .chev{
    margin-left:6px;
  }
}

/* roulang page: category2 */
:root {
      --primary: #2165E3;
      --primary-dark: #174AB8;
      --primary-soft: #EEF4FF;
      --primary-border: #BBD2FC;
      --accent: #FF6A3D;
      --accent-dark: #E8552D;
      --accent-soft: #FFF1EB;
      --accent-border: #FFC6B3;
      --bg: #F5F8FC;
      --card: #FFFFFF;
      --text: #1B2A4A;
      --text-secondary: #5C6B84;
      --text-faint: #78879E;
      --border: #E4EAF3;
      --radius: 14px;
      --radius-lg: 24px;
      --shadow: 0 2px 8px rgba(33, 101, 227, 0.06);
      --shadow-hover: 0 12px 24px rgba(33, 101, 227, 0.12);
      --container: 1200px;
      --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font);
      background: var(--bg);
      color: var(--text);
      line-height: 1.7;
      font-size: 15px;
      font-feature-settings: "tnum";
      -webkit-font-smoothing: antialiased;
    }

    img {
      max-width: 100%;
      display: block;
      border: 0;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
    }

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

    button,
    input,
    textarea {
      font-family: inherit;
      font-size: inherit;
    }

    .container {
      max-width: var(--container);
      margin: 0 auto;
      padding-left: 20px;
      padding-right: 20px;
      width: 100%;
    }

    .container-fluid {
      width: 100%;
      padding-left: 20px;
      padding-right: 20px;
    }

    .sr-only {
      position: absolute !important;
      width: 1px;
      height: 1px;
      padding: 0;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border: 0;
    }

    /* ===== Header ===== */
    .site-header {
      background: #fff;
      border-bottom: 1px solid var(--border);
      position: sticky;
      top: 0;
      z-index: 80;
      box-shadow: 0 4px 20px rgba(27, 42, 74, 0.04);
    }

    .header-top {
      background: #fff;
    }

    .header-top-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      min-height: 68px;
      padding-top: 8px;
      padding-bottom: 8px;
      flex-wrap: wrap;
    }

    .header-brand {
      min-width: 0;
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      color: var(--text);
    }

    .brand-icon {
      width: 40px;
      height: 40px;
      border-radius: 11px;
      background: linear-gradient(135deg, #2f74eb, #174ab8);
      color: #fff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 19px;
      box-shadow: 0 4px 10px rgba(33, 101, 227, 0.2);
      flex: 0 0 auto;
    }

    .brand-text {
      font-size: 21px;
      font-weight: 800;
      letter-spacing: 0.02em;
      white-space: nowrap;
      color: var(--text);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      flex: 1 1 auto;
      justify-content: flex-end;
    }

    .header-search {
      position: relative;
      width: 268px;
      height: 42px;
      background: var(--bg);
      border: 1px solid #D6DFEB;
      border-radius: 999px;
      display: flex;
      align-items: center;
      padding: 0 16px;
      gap: 8px;
      transition: border 0.2s, box-shadow 0.2s, background 0.2s;
    }

    .header-search:focus-within {
      border-color: var(--primary);
      background: #fff;
      box-shadow: 0 0 0 4px rgba(33, 101, 227, 0.12);
    }

    .header-search i {
      color: #8b9bb0;
      font-size: 14px;
    }

    .header-search input {
      border: 0;
      outline: 0;
      background: transparent;
      width: 100%;
      font-size: 14px;
      line-height: 1.4;
      color: var(--text);
    }

    .header-search input::placeholder {
      color: #a0aec0;
    }

    .header-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      height: 42px;
      padding: 0 22px;
      background: var(--accent);
      border-radius: 999px;
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      border: none;
      cursor: pointer;
      white-space: nowrap;
      transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
    }

    .header-btn:hover {
      background: var(--accent-dark);
      color: #fff;
      box-shadow: 0 8px 18px rgba(255, 106, 61, 0.26);
      transform: translateY(-1px);
    }

    .header-btn:active {
      transform: translateY(1px);
      box-shadow: none;
    }

    .channel-tabs {
      background: #fff;
      border-top: 1px solid #F0F4FA;
      border-bottom: 1px solid var(--border);
    }

    .channel-tabs-inner {
      display: flex;
      align-items: center;
      gap: 6px;
      overflow-x: auto;
      white-space: nowrap;
      scrollbar-width: none;
      padding: 9px 0;
    }

    .channel-tabs-inner::-webkit-scrollbar {
      display: none;
    }

    .channel-tab {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-secondary);
      background: transparent;
      border-radius: 999px;
      padding: 8px 16px;
      border: none;
      transition: background 0.2s, color 0.2s;
    }

    .channel-tab i {
      font-size: 13px;
      color: inherit;
    }

    .channel-tab:hover {
      background: var(--primary-soft);
      color: var(--primary-dark);
    }

    .channel-tab.active {
      background: var(--primary);
      color: #fff;
    }

    .channel-tab.active:hover {
      background: var(--primary-dark);
      color: #fff;
    }

    /* ===== 页面横幅 ===== */
    .dynamic-hero {
      position: relative;
      padding: 64px 0 56px;
      background:
        radial-gradient(circle at 82% 20%, rgba(255, 106, 61, 0.16), transparent 300px),
        radial-gradient(circle at 12% 85%, rgba(33, 101, 227, 0.10), transparent 240px),
        linear-gradient(115deg, #FFFDFA 0%, #FFF5EF 60%, #FFF9F5 100%);
      border-bottom: 1px solid #F2D9CF;
      overflow: hidden;
    }

    .dynamic-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: url("/assets/images/backpic/back-2.webp") center 30% / cover no-repeat;
      opacity: 0.05;
      pointer-events: none;
    }

    .dynamic-hero-inner {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
      gap: 40px;
      align-items: center;
    }

    .cat-breadcrumb {
      font-size: 13px;
      color: var(--text-faint);
      margin-bottom: 18px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 6px;
    }

    .cat-breadcrumb a {
      color: var(--text-faint);
      text-decoration: none;
    }

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

    .cat-breadcrumb i {
      font-size: 11px;
      color: #B7C2D5;
    }

    .c-herf-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #fff;
      border: 1px solid var(--accent-border);
      color: var(--accent-dark);
      font-size: 13px;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 999px;
      margin-bottom: 16px;
      box-shadow: 0 4px 12px rgba(255, 106, 61, 0.08);
    }

    .dynamic-hero h1 {
      font-size: 34px;
      line-height: 1.3;
      font-weight: 800;
      color: var(--text);
      margin: 0 0 14px;
      letter-spacing: 0.01em;
    }

    .dynamic-lead {
      font-size: 16px;
      line-height: 1.8;
      color: var(--text-secondary);
      max-width: 580px;
      margin-bottom: 26px;
    }

    .hero-btn-group {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      height: 46px;
      padding: 0 30px;
      background: var(--accent);
      color: #fff;
      border-radius: 10px;
      font-size: 15px;
      font-weight: 600;
      border: none;
      cursor: pointer;
      transition: all 0.2s ease;
      box-shadow: 0 6px 16px rgba(255, 106, 61, 0.2);
    }

    .btn-primary:hover {
      background: var(--accent-dark);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 10px 22px rgba(255, 106, 61, 0.24);
    }

    .btn-primary:active {
      transform: translateY(1px);
      box-shadow: none;
      background: #d84d26;
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      height: 46px;
      padding: 0 26px;
      background: #fff;
      color: var(--primary);
      border: 1px solid #B9CBF0;
      border-radius: 10px;
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .btn-secondary:hover {
      background: var(--primary-soft);
      color: var(--primary-dark);
      border-color: var(--primary);
    }

    .btn-secondary:active {
      transform: scale(0.98);
    }

    .hero-visual {
      position: relative;
    }

    .hero-cover-frame {
      position: relative;
      border-radius: 22px;
      overflow: hidden;
      box-shadow: 0 22px 46px rgba(27, 42, 74, 0.12);
      background: #fff;
      transform: rotate(1.5deg);
      transition: transform 0.3s;
    }

    .hero-cover-frame:hover {
      transform: rotate(0deg);
    }

    .hero-cover-frame img {
      width: 100%;
      height: 300px;
      object-fit: cover;
    }

    .hero-cover-tag {
      position: absolute;
      left: 16px;
      bottom: 16px;
      background: rgba(27, 42, 74, 0.76);
      backdrop-filter: blur(6px);
      color: #fff;
      border-radius: 999px;
      padding: 7px 14px;
      font-size: 12px;
      display: flex;
      align-items: center;
      gap: 7px;
      letter-spacing: 0.02em;
    }

    .hero-cover-tag i {
      color: #ffd0c0;
    }

    /* ===== 通用区块标题 ===== */
    .section-block {
      padding: 76px 0;
    }

    .section-block.tight-bottom {
      padding-bottom: 18px;
    }

    .sec-head {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 26px;
    }

    .sec-head-bar {
      width: 4px;
      height: 24px;
      background: var(--primary);
      border-radius: 6px;
      flex: 0 0 auto;
    }

    .sec-head h2 {
      font-size: 24px;
      font-weight: 700;
      color: var(--text);
      margin: 0;
      line-height: 1.3;
    }

    .sec-head .sec-subtitle {
      margin-left: auto;
      font-size: 14px;
      color: var(--text-faint);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .divider-line {
      border: 0;
      border-top: 1px solid #e6ecf5;
      margin: 0 0 36px;
    }

    /* ===== 页面介绍区 ===== */
    .intro-flex {
      display: grid;
      grid-template-columns: 360px 1fr;
      gap: 44px;
      align-items: center;
    }

    .intro-image {
      border-radius: 18px;
      overflow: hidden;
      box-shadow: 0 14px 34px rgba(27, 42, 74, 0.08);
    }

    .intro-image img {
      width: 100%;
      height: 300px;
      object-fit: cover;
    }

    .intro-content h3 {
      font-size: 22px;
      font-weight: 700;
      color: var(--text);
      margin: 0 0 14px;
    }

    .intro-text {
      font-size: 15px;
      line-height: 1.9;
      color: var(--text-secondary);
      margin-bottom: 26px;
      max-width: 620px;
    }

    .intro-feature-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .intro-feature {
      display: flex;
      gap: 12px;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 18px;
      transition: box-shadow 0.2s, transform 0.2s;
    }

    .intro-feature:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }

    .intro-feature-icon {
      width: 42px;
      height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 12px;
      background: var(--primary-soft);
      color: var(--primary);
      font-size: 18px;
      flex: 0 0 auto;
    }

    .intro-feature h4 {
      margin: 0 0 4px;
      font-size: 15px;
      font-weight: 700;
      color: var(--text);
    }

    .intro-feature p {
      margin: 0;
      font-size: 13px;
      color: var(--text-faint);
      line-height: 1.6;
    }

    /* ===== 时间线 ===== */
    .timeline-section {
      background:
        linear-gradient(180deg, var(--bg), #ffffff 20%, #ffffff 80%, var(--bg));
    }

    .timeline-intro {
      max-width: 760px;
      margin: 0 auto 42px;
      text-align: center;
    }

    .timeline-intro p {
      font-size: 15px;
      color: var(--text-secondary);
      margin: 0 0 14px;
    }

    .timeline-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
    }

    .timeline-tag-chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #fff;
      border: 1px solid var(--border);
      padding: 6px 14px;
      border-radius: 999px;
      font-size: 13px;
      color: var(--text-secondary);
    }

    .timeline-tag-chip i {
      color: var(--primary);
      font-size: 12px;
    }

    .timeline-shell {
      position: relative;
      max-width: 980px;
      margin: 0 auto;
    }

    .timeline-shell-before {
      position: absolute;
      left: 170px;
      top: 16px;
      bottom: 16px;
      width: 2px;
      background: linear-gradient(180deg, var(--primary), rgba(33, 101, 227, 0.12) 55%, var(--accent-border));
      content: "";
    }

    .timeline-group {
      margin-bottom: 18px;
      position: relative;
    }

    .timeline-year-line {
      display: flex;
      align-items: center;
      padding-left: 0;
      margin-bottom: 18px;
      position: relative;
    }

    .timeline-year-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--text);
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      padding: 5px 15px;
      border-radius: 999px;
      letter-spacing: 0.06em;
    }

    .timeline-year-badge i {
      color: #ffc1ae;
    }

    .timeline-item {
      display: flex;
      position: relative;
      align-items: flex-start;
      padding-left: 0;
      margin-bottom: 26px;
    }

    .timeline-item:last-child {
      margin-bottom: 8px;
    }

    .timeline-date {
      width: 120px;
      flex-shrink: 0;
      text-align: right;
      padding-top: 3px;
      position: relative;
      z-index: 2;
    }

    .timeline-date span {
      display: inline-block;
      background: #fff;
      border: 1px solid var(--accent-border);
      color: var(--accent-dark);
      font-size: 13px;
      font-weight: 700;
      padding: 5px 12px;
      border-radius: 999px;
      line-height: 1.3;
    }

    .timeline-track {
      width: 42px;
      flex-shrink: 0;
      display: flex;
      justify-content: center;
      position: relative;
      z-index: 2;
      padding-top: 3px;
    }

    .timeline-dot {
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: #fff;
      border: 3px solid var(--primary);
      box-shadow: 0 0 0 4px rgba(33, 101, 227, 0.12);
      display: block;
    }

    .timeline-card {
      flex: 1;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      border-radius: 14px;
      padding: 20px 24px;
      margin-left: 28px;
      transition: all 0.25s ease;
    }

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

    .timeline-card-top {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
      margin-bottom: 8px;
    }

    .timeline-mini-tag {
      font-size: 12px;
      color: var(--primary-dark);
      background: var(--primary-soft);
      border-radius: 999px;
      padding: 3px 10px;
      font-weight: 500;
    }

    .timeline-mini-tag.orange {
      color: var(--accent-dark);
      background: var(--accent-soft);
    }

    .timeline-card h3 {
      margin: 0 0 8px;
      font-size: 17px;
      font-weight: 700;
      color: var(--text);
      line-height: 1.45;
    }

    .timeline-card p {
      margin: 0;
      font-size: 14px;
      line-height: 1.85;
      color: var(--text-secondary);
    }

    /* ===== 三入口区块 ===== */
    .explore-cta-section {
      background: #fff;
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .explore-grid {
      display: grid;
      grid-template-columns: 1.08fr 0.92fr;
      gap: 22px;
      align-items: stretch;
    }

    .explore-nav-card,
    .explore-info-card {
      border-radius: 18px;
      padding: 28px 26px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      background: #fff;
      transition: box-shadow 0.2s;
    }

    .explore-nav-card {
      background: linear-gradient(145deg, #fff, #F7FBFF);
    }

    .explore-nav-card:hover,
    .explore-info-card:hover {
      box-shadow: var(--shadow-hover);
    }

    .explore-nav-title {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 14px;
    }

    .explore-nav-title i {
      color: var(--accent);
    }

    .explore-nav-desc {
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 1.8;
      margin-bottom: 18px;
    }

    .explore-icon-list {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 12px;
    }

    .explore-icon-list li a {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 9px;
      text-align: center;
      border: 1px solid var(--border);
      background: #fff;
      border-radius: 13px;
      padding: 16px 8px;
      color: var(--text);
      transition: all 0.2s;
    }

    .explore-icon-list li a:hover {
      border-color: var(--primary-border);
      background: var(--primary-soft);
      transform: translateY(-3px);
      box-shadow: 0 10px 22px rgba(33, 101, 227, 0.1);
    }

    .explore-icon-list i {
      font-size: 20px;
      background: var(--primary-soft);
      color: var(--primary);
      width: 44px;
      height: 44px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      transition: background 0.2s;
    }

    .explore-icon-list span {
      font-size: 13px;
      font-weight: 600;
      line-height: 1.4;
    }

    .explore-info-card {
      display: flex;
      flex-direction: column;
      justify-content: center;
      position: relative;
      overflow: hidden;
    }

    .explore-info-card::after {
      content: "";
      position: absolute;
      right: -30px;
      top: -30px;
      width: 130px;
      height: 130px;
      border-radius: 50%;
      background: repeating-radial-gradient(circle, rgba(33, 101, 227, 0.1) 0, rgba(33, 101, 227, 0.1) 1px, transparent 1px, transparent 8px);
      pointer-events: none;
    }

    .explore-info-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 10px;
    }

    .explore-info-card p {
      font-size: 14px;
      color: var(--text-secondary);
      margin-bottom: 14px;
    }

    .explore-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
    }

    .explore-link i {
      transition: transform 0.2s;
    }

    .explore-link:hover i {
      transform: translateX(4px);
    }

    /* ===== FAQ ===== */
    .faq-section {
      background: var(--bg);
    }

    .faq-wrap {
      max-width: 880px;
      margin: 0 auto;
    }

    .faq-accordion {
      list-style: none;
      margin: 0;
      padding: 0;
      background: transparent;
      border: 0;
    }

    .faq-accordion .accordion-item {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 14px;
      margin-bottom: 14px;
      box-shadow: 0 2px 10px rgba(33, 101, 227, 0.04);
      transition: border-color 0.2s, box-shadow 0.2s;
      overflow: hidden;
    }

    .faq-accordion .accordion-item:hover {
      border-color: var(--primary-border);
      box-shadow: var(--shadow-hover);
    }

    .faq-accordion .accordion-title {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      background: #fff;
      color: var(--text);
      font-size: 15px;
      font-weight: 600;
      padding: 20px 24px;
      border: 0;
      line-height: 1.6;
      margin: 0;
      cursor: pointer;
    }

    .faq-accordion .accordion-title::before,
    .faq-accordion .accordion-title::after {
      display: none;
    }

    .faq-accordion .accordion-title .faq-icon {
      width: 28px;
      height: 28px;
      flex: 0 0 auto;
      border-radius: 50%;
      background: var(--primary-soft);
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
      transition: transform 0.25s;
    }

    .faq-accordion .accordion-title:hover {
      color: var(--primary-dark);
      background: #fbfdff;
    }

    .faq-accordion .accordion-title:focus {
      outline: 2px solid rgba(33, 101, 227, 0.5);
      outline-offset: -2px;
    }

    .faq-accordion .is-active .accordion-title {
      background: #fbfdff;
      border-bottom: 1px solid #f0f4fa;
    }

    .faq-accordion .is-active .faq-icon {
      transform: rotate(90deg);
    }

    .faq-accordion .accordion-content {
      background: #fff;
      padding: 20px 24px;
      border-top: 0;
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.9;
      border-left: 3px solid var(--accent);
      border-radius: 0 0 14px 14px;
    }

    .faq-accordion .accordion-content p {
      margin: 0;
    }

    .faq-accordion .accordion-content[aria-hidden="true"] {
      display: none;
    }

    .faq-accordion .accordion-content[aria-hidden="false"] {
      display: block;
    }

    /* ===== 底部 CTA ===== */
    .bottom-cta {
      padding: 56px 0 64px;
      background: #fff;
    }

    .back-home-cta {
      background: linear-gradient(125deg, #F0F6FF, #F7FBFF 60%, #FFF4EF);
      border: 1px solid var(--border);
      border-radius: 24px;
      padding: 38px 44px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 30px;
      flex-wrap: wrap;
      box-shadow: 0 8px 30px rgba(27, 42, 74, 0.05);
    }

    .back-home-cta h2 {
      font-size: 22px;
      font-weight: 700;
      margin: 0 0 8px;
      color: var(--text);
    }

    .back-home-cta p {
      margin: 0;
      font-size: 14px;
      color: var(--text-secondary);
      max-width: 620px;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: #FFFFFF;
      border-top: 1px solid var(--border);
    }

    .footer-safe {
      border-bottom: 1px solid #eef2f7;
      background: #FBFCFE;
    }

    .footer-safe .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      min-height: 60px;
      padding-top: 12px;
      padding-bottom: 12px;
    }

    .footer-safe span {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--text);
      font-size: 14px;
      font-weight: 500;
    }

    .footer-safe i {
      color: var(--primary);
      font-size: 16px;
    }

    .footer-main {
      background: #fff;
      padding: 56px 0 46px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.35fr 0.8fr 0.8fr 1fr;
      gap: 42px;
    }

    .footer-brand h4 {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 19px;
      font-weight: 800;
      color: var(--text);
      margin: 0 0 16px;
    }

    .footer-brand h4 .brand-icon {
      width: 36px;
      height: 36px;
      font-size: 17px;
      border-radius: 10px;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.9;
      color: var(--text-secondary);
      margin: 0 0 20px;
      max-width: 340px;
    }

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

    .footer-social a {
      width: 36px;
      height: 36px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      background: var(--bg);
      border: 1px solid var(--border);
      color: var(--text-secondary);
    }

    .footer-social a:hover {
      background: var(--primary-soft);
      color: var(--primary);
      border-color: var(--primary-border);
    }

    .footer-col h5 {
      font-size: 15px;
      font-weight: 700;
      margin: 0 0 14px;
      color: var(--text);
    }

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

    .footer-col ul li {
      margin-bottom: 10px;
    }

    .footer-col ul a {
      color: var(--text-secondary);
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 7px;
    }

    .footer-col ul a:hover {
      color: var(--primary);
      padding-left: 3px;
    }

    .footer-col ul a i {
      color: var(--primary);
      font-size: 11px;
    }

    .footer-contact p {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 14px;
      color: var(--text-secondary);
      margin-bottom: 12px;
      line-height: 1.7;
    }

    .footer-contact p i {
      margin-top: 4px;
      width: 18px;
      color: var(--primary);
      text-align: center;
    }

    .footer-bottom {
      border-top: 1px solid #EEF1F6;
      background: #FBFCFE;
    }

    .footer-bottom-inner {
      max-width: var(--container);
      margin: 0 auto;
      padding: 14px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
      font-size: 13px;
      color: var(--text-faint);
    }

    .footer-bottom a {
      color: var(--text-faint);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

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

    .footer-bottom .footer-lang {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    /* ===== Responsive ===== */
    @media screen and (max-width: 1024px) {
      .dynamic-hero h1 {
        font-size: 30px;
      }

      .brand-text {
        font-size: 19px;
      }

      .intro-flex {
        grid-template-columns: 1fr;
      }

      .intro-image {
        max-width: 580px;
      }

      .footer-grid {
        grid-template-columns: 1fr 0.8fr 0.8fr;
        row-gap: 36px;
      }

      .footer-brand {
        grid-column: 1 / -1;
      }

      .footer-brand p {
        max-width: 520px;
      }

      .explore-grid {
        grid-template-columns: 1fr;
      }
    }

    @media screen and (max-width: 767px) {
      .section-block {
        padding: 48px 0;
      }

      .header-top-inner {
        min-height: 60px;
        gap: 8px;
      }

      .brand-icon {
        width: 34px;
        height: 34px;
        font-size: 16px;
        border-radius: 10px;
      }

      .brand-text {
        font-size: 16px;
        letter-spacing: 0;
      }

      .header-actions {
        gap: 6px;
        flex: 0 1 auto;
      }

      .header-search {
        width: 44px;
        padding: 0;
        justify-content: center;
        border-radius: 50%;
        border-color: transparent;
        background: var(--bg);
      }

      .header-search input {
        display: none;
      }

      .header-btn {
        height: 40px;
        padding: 0 16px;
        font-size: 13px;
      }

      .channel-tab {
        padding: 7px 12px;
        font-size: 13px;
      }

      .dynamic-hero {
        padding: 38px 0 34px;
      }

      .dynamic-hero-inner {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .dynamic-hero h1 {
        font-size: 26px;
      }

      .dynamic-lead {
        font-size: 15px;
      }

      .hero-btn-group .btn-primary,
      .hero-btn-group .btn-secondary {
        width: calc(50% - 6px);
        padding: 0 14px;
        font-size: 14px;
        height: 44px;
      }

      .hero-btn-group {
        gap: 12px;
      }

      .hero-cover-frame {
        max-width: 92%;
        margin: 0 auto;
      }

      .hero-cover-frame img {
        height: 220px;
      }

      .sec-head h2 {
        font-size: 20px;
      }

      .sec-head {
        flex-wrap: wrap;
      }

      .sec-head .sec-subtitle {
        width: 100%;
        margin-left: 16px;
      }

      .intro-feature-grid {
        grid-template-columns: 1fr;
      }

      .timeline-year-badge {
        font-size: 11px;
        padding: 5px 12px;
      }

      .timeline-shell-before {
        left: 13px;
        top: 10px;
        bottom: 10px;
      }

      .timeline-item {
        flex-direction: column;
        padding-left: 0;
        margin-bottom: 30px;
      }

      .timeline-date {
        width: auto;
        text-align: left;
        padding-left: 34px;
        margin-bottom: 8px;
      }

      .timeline-date span {
        font-size: 12px;
        padding: 3px 12px;
      }

      .timeline-track {
        position: absolute;
        left: 0;
        top: 8px;
        width: 28px;
        justify-content: flex-start;
        padding-left: 0;
      }

      .timeline-dot {
        width: 12px;
        height: 12px;
        border-width: 2px;
      }

      .timeline-card {
        margin-left: 34px;
        width: calc(100% - 34px);
        padding: 16px;
      }

      .timeline-card h3 {
        font-size: 15px;
      }

      .timeline-card p {
        font-size: 13px;
      }

      .explore-icon-list {
        grid-template-columns: 1fr;
      }

      .explore-icon-list li a {
        flex-direction: row;
        text-align: left;
        padding: 14px;
      }

      .explore-icon-list i {
        width: 38px;
        height: 38px;
        font-size: 17px;
        flex: 0 0 auto;
      }

      .back-home-cta {
        flex-direction: column;
        align-items: flex-start;
        padding: 26px 24px;
      }

      .back-home-cta .btn-primary {
        width: 100%;
      }

      .footer-main {
        padding: 44px 0 40px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .footer-brand {
        grid-column: auto;
      }

      .footer-col h5 {
        font-size: 15px;
      }

      .footer-safe .container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        min-height: auto;
        gap: 14px;
        padding-top: 18px;
        padding-bottom: 18px;
      }

      .footer-bottom-inner {
        align-items: flex-start;
        flex-direction: column;
      }
    }

    @media screen and (max-width: 480px) {
      .hero-btn-group {
        flex-direction: column;
        align-items: stretch;
      }

      .hero-btn-group .btn-primary,
      .hero-btn-group .btn-secondary {
        width: 100%;
        max-width: 100%;
        justify-content: center;
      }

      .brand-text {
        letter-spacing: -0.01em;
      }

      .header-btn {
        padding: 0 12px;
        gap: 5px;
      }

      .header-btn span.btn-text {
        display: inline;
      }
    }