/* roulang page: index */
:root{
    --color-primary:#2A7185;
    --color-primary-dark:#1C4D5F;
    --color-primary-dark-2:#102A33;
    --color-primary-light:#E3EFF3;
    --color-accent:#F2A03D;
    --color-accent-dark:#D98A2B;
    --color-bg:#F5F8FA;
    --color-section:#EAF1F5;
    --color-surface:#FFFFFF;
    --color-border:#D8E2E8;
    --color-border-dark:#B7CAD4;
    --color-text:#1E2A32;
    --color-text-secondary:#5A6B76;
    --color-text-invert:#F4F8FA;
    --radius-sm:8px;
    --radius-md:14px;
    --radius-lg:24px;
    --radius-full:999px;
    --shadow-sm:0 2px 10px rgba(42,113,133,.06);
    --shadow-md:0 10px 28px rgba(42,113,133,.1);
    --shadow-lg:0 20px 48px rgba(28,77,95,.16);
    --space-1:.5rem;
    --space-2:.75rem;
    --space-3:1rem;
    --space-4:1.5rem;
    --space-5:2rem;
    --space-6:3rem;
    --space-7:4.5rem;
    --space-8:6rem;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;color:var(--color-text);background:var(--color-bg);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;height:auto;}
a{text-decoration:none;color:var(--color-primary);transition:color .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;}
a:hover{color:var(--color-primary-dark);}
button{font-family:inherit;}
.container{max-width:1200px;margin:0 auto;padding:0 1.5rem;position:relative;}
.grid-x{display:flex;flex-wrap:wrap;}
.grid-margin-x{margin-left:-.75rem;margin-right:-.75rem;}
.grid-margin-x>.cell{padding-left:.75rem;padding-right:.75rem;}

/* ===== Top Bar ===== */
.topbar{background:var(--color-primary-dark);color:var(--color-text-invert);height:40px;font-size:14px;display:flex;align-items:center;transition:height .3s ease;}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;width:100%;font-size:14px;}
.topbar-inner span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-close{background:none;border:none;color:rgba(255,255,255,.85);font-size:18px;cursor:pointer;padding:0 .5rem;line-height:1;border-radius:4px;}
.topbar-close:hover{color:#fff;}
.topbar-hidden{display:none;}

/* ===== Header / Nav ===== */
.site-header{background:var(--color-surface);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:1000;height:76px;display:flex;align-items:center;}
.header-inner{display:flex;align-items:center;justify-content:space-between;width:100%;gap:1rem;}
.brand-logo{display:flex;align-items:center;gap:.65rem;flex-shrink:0;}
.logo-mark{width:42px;height:42px;border-radius:12px;background:var(--color-primary);color:#fff;font-weight:800;font-size:16px;letter-spacing:.02em;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(42,113,133,.25);}
.logo-text{font-size:1.25rem;font-weight:700;color:var(--color-text);letter-spacing:.01em;white-space:nowrap;}
.logo-text span{color:var(--color-primary);}
.main-nav{display:flex;align-items:center;gap:1.5rem;margin:0 auto;}
.nav-link{position:relative;font-size:16px;font-weight:500;color:var(--color-text);padding:.75rem 0;border-bottom:3px solid transparent;transition:color .2s,border-color .2s;}
.nav-link:hover{color:var(--color-primary);border-bottom-color:var(--color-primary);}
.nav-link.active{color:var(--color-primary);border-bottom-color:var(--color-primary);}
.header-actions{display:flex;align-items:center;gap:.75rem;}

.mega-wrap{position:relative;}
.mega-trigger{display:inline-flex;align-items:center;gap:.4rem;background:var(--color-primary-light);color:var(--color-primary-dark);border:1px solid var(--color-border);border-radius:var(--radius-full);padding:.55rem 1.1rem;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s,border-color .2s,box-shadow .2s;}
.mega-trigger:hover,.mega-wrap:hover .mega-trigger{background:#d4e6ec;border-color:var(--color-primary);}
.mega-caret{font-size:11px;transition:transform .2s;}
.mega-wrap:hover .mega-caret{transform:rotate(180deg);}
.mega-panel{position:absolute;top:calc(100% + 10px);right:0;width:620px;max-width:calc(100vw - 3rem);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s ease,transform .2s ease,visibility .2s;z-index:1200;}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-inner{display:grid;grid-template-columns:1fr 1.2fr;gap:1rem;padding:1.35rem;}
.mega-title{font-size:13px;font-weight:700;color:var(--color-text-secondary);letter-spacing:.08em;text-transform:uppercase;margin-bottom:1rem;padding-bottom:.5rem;border-bottom:1px solid var(--color-border);}
.mega-link{display:flex;align-items:center;gap:.65rem;padding:.55rem .75rem;border-radius:var(--radius-sm);font-size:15px;font-weight:600;color:var(--color-text);margin-bottom:.15rem;transition:background .2s;}
.mega-link:hover{background:var(--color-primary-light);color:var(--color-primary-dark);}
.mega-link span{font-size:12px;color:var(--color-text-secondary);font-weight:400;}
.mega-item{display:flex;align-items:center;gap:.75rem;padding:.5rem .65rem;border-radius:var(--radius-sm);margin-bottom:.4rem;transition:background .2s;}
.mega-item:hover{background:var(--color-primary-light);}
.mega-item img{width:56px;height:56px;object-fit:cover;border-radius:8px;flex-shrink:0;}
.mega-item span{font-size:14px;font-weight:500;color:var(--color-text);line-height:1.4;}
.mega-more{display:block;text-align:right;padding:.75rem 1.35rem 1rem;border-top:1px solid var(--color-border);font-size:14px;font-weight:600;color:var(--color-primary);}
.mega-more:hover{color:var(--color-primary-dark);}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--color-border);border-radius:10px;background:var(--color-surface);flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;transition:border-color .2s;}
.menu-toggle:hover{border-color:var(--color-primary);}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--color-text);border-radius:2px;}
.menu-toggle.open span{background:var(--color-primary);}

.mobile-menu{display:none;position:fixed;top:76px;left:0;right:0;background:var(--color-surface);border-bottom:1px solid var(--color-border);box-shadow:var(--shadow-lg);padding:1rem 1.5rem 2rem;z-index:999;max-height:calc(100vh - 76px);overflow-y:auto;}
.mobile-menu.open{display:block;}
.mobile-link{display:block;padding:.9rem 0;font-size:16px;font-weight:500;color:var(--color-text);border-bottom:1px solid var(--color-section);}
.mobile-link:hover{color:var(--color-primary);}
.mobile-link.active{color:var(--color-primary);font-weight:700;}
.mobile-section{margin-top:1rem;padding-top:.5rem;}
.mobile-section h4{font-size:13px;font-weight:700;color:var(--color-text-secondary);letter-spacing:.08em;text-transform:uppercase;margin-bottom:.4rem;}
.mobile-section .mobile-link{border-bottom:none;padding:.5rem 0;font-size:15px;}
.mobile-more{display:block;margin-top:.75rem;font-size:14px;font-weight:600;color:var(--color-primary);text-align:right;}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;height:48px;padding:0 1.75rem;border-radius:var(--radius-sm);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .25s ease;}
.btn-accent{background:var(--color-accent);color:#fff;}
.btn-accent:hover{background:var(--color-accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 6px 18px rgba(242,160,61,.3);}
.btn-outline{background:var(--color-surface);color:var(--color-primary);border-color:var(--color-primary);}
.btn-outline:hover{background:var(--color-primary-light);color:var(--color-primary-dark);transform:translateY(-2px);}

/* ===== Hero ===== */
.hero-section{background:var(--color-bg);padding:clamp(4rem,7vw,6rem) 0 clamp(3.5rem,5vw,5rem);position:relative;overflow:hidden;}
.hero-section::before{content:"";position:absolute;width:220px;height:220px;border-radius:50%;background:var(--color-primary-light);opacity:.5;left:-80px;top:-60px;pointer-events:none;}
.hero-section::after{content:"";position:absolute;width:120px;height:120px;border-radius:50%;background:var(--color-primary-light);opacity:.3;right:8%;bottom:10%;pointer-events:none;}
.hero-content{position:relative;z-index:2;padding:1.5rem 0;}
.hero-title{font-size:clamp(2rem,3.6vw,3.1rem);font-weight:700;line-height:1.16;letter-spacing:-.02em;margin:0 0 1.25rem;color:var(--color-text);}
.hero-title .highlight{color:var(--color-primary);}
.hero-sub{font-size:1.1rem;color:var(--color-text-secondary);line-height:1.7;max-width:480px;margin:0 0 2rem;}
.hero-btns{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:2.5rem;}
.hero-stats{display:flex;align-items:center;gap:0;border-top:1px solid var(--color-border);padding-top:1.75rem;max-width:480px;}
.stat-item{flex:1;text-align:left;padding:0 1.25rem;position:relative;}
.stat-item:first-child{padding-left:0;}
.stat-item:not(:last-child)::after{content:"";position:absolute;right:0;top:12%;height:76%;width:1px;background:var(--color-border);}
.stat-num{display:block;font-size:2.1rem;font-weight:800;color:var(--color-primary);font-family:"DIN Alternate","Roboto Condensed",sans-serif;line-height:1.1;letter-spacing:-.01em;}
.stat-label{font-size:14px;color:var(--color-text-secondary);margin-top:.3rem;}
.hero-visual{position:relative;z-index:2;padding:1rem 0;}
.hero-img-wrap{position:relative;}
.hero-img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);}
.hero-float-card{position:absolute;right:1.5rem;bottom:1.5rem;background:var(--color-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:.9rem 1.2rem;display:flex;align-items:center;gap:.7rem;max-width:230px;}
.float-dot{width:10px;height:10px;border-radius:50%;background:#4CAF50;flex-shrink:0;animation:pulse 2s infinite;}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(76,175,80,.4);}50%{box-shadow:0 0 0 6px rgba(76,175,80,0);}}
.hero-float-card strong{display:block;font-size:14px;color:var(--color-text);white-space:nowrap;}
.hero-float-card span{font-size:12px;color:var(--color-text-secondary);}

/* ===== Section Common ===== */
.section-padding{padding:clamp(3.5rem,6vw,6rem) 0;}
.section-header{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:2.5rem;gap:1rem;flex-wrap:wrap;}
.section-header h2{font-size:clamp(1.5rem,2.4vw,2rem);font-weight:600;line-height:1.3;margin:0;letter-spacing:-.01em;position:relative;}
.section-header h2::before{content:"";display:inline-block;width:5px;height:28px;border-radius:3px;background:var(--color-accent);margin-right:.75rem;vertical-align:-3px;}
.link-more{font-size:15px;font-weight:600;color:var(--color-primary);display:inline-flex;align-items:center;gap:.35rem;transition:gap .2s;}
.link-more:hover{gap:.6rem;color:var(--color-primary-dark);}

/* ===== Story ===== */
.story-section{background:var(--color-surface);border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border);}
.story-content{padding:1rem 0 1rem 1rem;position:relative;}
.story-index{display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:50%;background:var(--color-primary-light);color:var(--color-primary);font-size:1.35rem;font-weight:800;margin-bottom:1.5rem;font-family:"DIN Alternate","Roboto Condensed",sans-serif;}
.story-content h2{font-size:clamp(1.6rem,2.4vw,2.1rem);font-weight:600;line-height:1.3;margin:0 0 1.25rem;letter-spacing:-.01em;max-width:420px;}
.story-divider{width:44px;height:3px;background:var(--color-accent);border-radius:2px;margin-bottom:1.5rem;}
.story-content p{color:var(--color-text-secondary);font-size:1rem;line-height:1.85;margin:0 0 1rem;max-width:440px;}
.story-content p strong{color:var(--color-text);}
.story-img-wrap{position:relative;padding:1rem 0 1rem 1rem;}
.story-img{border-radius:var(--radius-md);box-shadow:var(--shadow-md);object-fit:cover;width:100%;aspect-ratio:16/10;}
.story-badge{position:absolute;left:0;bottom:1.5rem;width:56px;height:56px;border-radius:50%;background:var(--color-primary);display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.1rem;font-weight:700;box-shadow:var(--shadow-md);}

/* ===== Featured Cards ===== */
.featured-section{background:var(--color-bg);}
.content-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);overflow:hidden;height:100%;display:flex;flex-direction:column;transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;}
.content-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px);border-color:var(--color-border-dark);}
.card-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--color-primary-light);}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.content-card:hover .card-thumb img{transform:scale(1.04);}
.card-badge{position:absolute;left:12px;top:12px;background:var(--color-accent);color:#fff;font-size:12px;font-weight:700;padding:4px 10px;border-radius:var(--radius-full);letter-spacing:.02em;box-shadow:0 2px 8px rgba(0,0,0,.12);}
.card-body{padding:1.25rem 1.35rem 1.35rem;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:1.08rem;font-weight:600;line-height:1.45;margin:0 0 .6rem;color:var(--color-text);}
.card-body h3 a{color:inherit;}
.card-body h3 a:hover{color:var(--color-primary);}
.card-excerpt{font-size:14px;color:var(--color-text-secondary);line-height:1.65;margin:0 0 1rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:.85rem;border-top:1px solid var(--color-section);font-size:13px;color:var(--color-text-secondary);}
.card-meta a{font-size:14px;font-weight:600;color:var(--color-primary);display:inline-flex;align-items:center;gap:.25rem;transition:gap .2s;}
.card-meta a:hover{gap:.5rem;color:var(--color-primary-dark);}
.empty-state{width:100%;border:2px dashed var(--color-border-dark);border-radius:var(--radius-md);background:var(--color-primary-light);padding:3rem 2rem;text-align:center;color:var(--color-text-secondary);font-size:15px;}

/* ===== Categories ===== */
.categories-section{background:var(--color-section);}
.cat-list{display:flex;flex-direction:column;gap:1rem;}
.cat-list-item{display:flex;align-items:center;gap:1.25rem;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:1rem 1.25rem;box-shadow:var(--shadow-sm);transition:all .25s ease;}
.cat-list-item:hover{box-shadow:var(--shadow-md);transform:translateX(6px);border-color:var(--color-primary);}
.cat-list-item img{width:160px;height:96px;object-fit:cover;border-radius:10px;flex-shrink:0;}
.cat-list-info{flex:1;min-width:0;}
.cat-list-info h3{font-size:1.1rem;font-weight:600;margin:0 0 .3rem;color:var(--color-text);}
.cat-list-info p{font-size:14px;color:var(--color-text-secondary);margin:0;line-height:1.5;}
.cat-arrow{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:var(--color-primary-light);color:var(--color-primary);font-size:1.1rem;flex-shrink:0;transition:background .2s,color .2s,transform .2s;}
.cat-list-item:hover .cat-arrow{background:var(--color-primary);color:#fff;transform:translateX(3px);}

/* ===== Trust ===== */
.trust-section{background:var(--color-section);padding:clamp(3.5rem,6vw,5.5rem) 0;}
.trust-intro{text-align:center;font-size:1.05rem;color:var(--color-text-secondary);max-width:560px;margin:0 auto 3rem;line-height:1.7;}
.trust-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem;margin-bottom:3.5rem;}
.trust-stat{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:1.75rem 1.25rem;text-align:center;box-shadow:var(--shadow-sm);}
.trust-num{font-size:clamp(1.8rem,3vw,2.5rem);font-weight:800;color:var(--color-primary);font-family:"DIN Alternate","Roboto Condensed",sans-serif;line-height:1.1;}
.trust-label{font-size:14px;color:var(--color-text-secondary);margin-top:.4rem;}
.trust-logos{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:1.5rem;padding:0 1rem;}
.trust-logo{display:inline-flex;align-items:center;justify-content:center;width:113px;height:36px;background:rgba(255,255,255,.75);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:#7A8C96;font-size:14px;font-weight:600;letter-spacing:.05em;transition:all .25s ease;}
.trust-logo:hover{color:var(--color-primary);border-color:var(--color-primary);background:#fff;box-shadow:var(--shadow-sm);}

/* ===== FAQ ===== */
.faq-section{background:var(--color-surface);}
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);margin-bottom:1rem;box-shadow:var(--shadow-sm);transition:box-shadow .25s ease;}
.faq-item.active{border-color:var(--color-primary);box-shadow:var(--shadow-md);}
.faq-question{display:flex;align-items:center;gap:1rem;width:100%;background:none;border:none;text-align:left;padding:1.1rem 1.35rem;cursor:pointer;border-radius:var(--radius-md);}
.faq-icon{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:var(--color-primary-light);color:var(--color-primary);font-weight:700;font-size:16px;flex-shrink:0;transition:background .2s,color .2s;}
.faq-item.active .faq-icon{background:var(--color-primary);color:#fff;}
.faq-question-text{flex:1;font-size:16px;font-weight:600;color:var(--color-text);}
.faq-toggle{width:20px;height:20px;position:relative;flex-shrink:0;}
.faq-toggle::before,.faq-toggle::after{content:"";position:absolute;background:var(--color-text-secondary);border-radius:2px;transition:all .25s ease;}
.faq-toggle::before{width:14px;height:2px;left:3px;top:9px;}
.faq-toggle::after{width:2px;height:14px;left:9px;top:3px;}
.faq-item.active .faq-toggle::after{transform:scaleY(0);}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 1.35rem 0 4.4rem;}
.faq-item.active .faq-answer{max-height:400px;padding-bottom:1.25rem;}
.faq-answer p{font-size:15px;color:var(--color-text-secondary);line-height:1.8;margin:0;}

/* ===== CTA / Subscribe ===== */
.cta-section{background:var(--color-bg);padding:clamp(3.5rem,6vw,5.5rem) 0;}
.cta-container{background:var(--color-primary-dark);border-radius:var(--radius-lg);padding:clamp(2.5rem,5vw,3.5rem);position:relative;overflow:hidden;box-shadow:var(--shadow-lg);}
.cta-container::after{content:"";position:absolute;width:200px;height:200px;border-radius:50%;background:rgba(255,255,255,.06);right:-60px;top:-60px;pointer-events:none;}
.cta-container::before{content:"";position:absolute;width:120px;height:120px;border-radius:50%;background:rgba(255,255,255,.05);right:15%;bottom:-40px;pointer-events:none;}
.cta-left{position:relative;z-index:2;padding:1rem 0;}
.cta-left h2{color:#fff;font-size:clamp(1.4rem,2.2vw,1.9rem);font-weight:600;line-height:1.3;margin:0 0 .75rem;}
.cta-left p{color:rgba(255,255,255,.8);font-size:15px;margin:0;}
.cta-right{position:relative;z-index:2;padding:1rem 0;}
.subscribe-form{display:flex;flex-direction:column;gap:.75rem;max-width:440px;margin-left:auto;}
.subscribe-form-row{display:flex;gap:.6rem;}
.subscribe-form input{flex:1;height:48px;border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.95);padding:0 1rem;font-size:15px;color:var(--color-text);outline:none;transition:border-color .2s,box-shadow .2s;}
.subscribe-form input:focus{border-color:var(--color-accent);box-shadow:0 0 0 3px rgba(242,160,61,.3);}
.subscribe-form .btn{flex-shrink:0;height:48px;}
.privacy-note{font-size:12px;color:rgba(255,255,255,.55);margin:.35rem 0 0;line-height:1.5;}

/* ===== Footer ===== */
.site-footer{background:var(--color-primary-dark-2);color:#B7C9D2;padding:4.5rem 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:3.5fr 2fr 2.5fr 2.5fr;gap:2.5rem;padding-bottom:2.5rem;}
.footer-brand .brand-logo{margin-bottom:1rem;}
.footer-brand .logo-mark{background:rgba(255,255,255,.12);color:#fff;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.75;color:#B7C9D2;margin:0 0 1.25rem;max-width:320px;}
.social-links{display:flex;gap:.6rem;}
.social-link{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.08);color:#B7C9D2;font-size:16px;transition:all .25s ease;border:1px solid transparent;}
.social-link:hover{background:var(--color-accent);color:#fff;border-color:var(--color-accent);transform:translateY(-2px);}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin:0 0 1.1rem;position:relative;padding-bottom:.6rem;}
.footer-title::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--color-accent);border-radius:1px;}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.5rem;}
.footer-links a{color:#B7C9D2;transition:color .2s,padding-left .2s;display:inline-block;}
.footer-links a:hover{color:var(--color-accent);padding-left:4px;}
.footer-contact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.6rem;}
.footer-contact li{color:#B7C9D2;line-height:1.6;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:1.5rem 0;display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55);}

/* ===== Responsive ===== */
@media (max-width:1024px){
    .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:2rem;}
    .footer-brand{grid-column:1 / -1;}
}
@media (max-width:900px){
    .site-header{height:64px;}
    .main-nav{display:none;}
    .mega-wrap{display:none;}
    .menu-toggle{display:flex;}
    .mobile-menu{top:64px;max-height:calc(100vh - 64px);}
    .hero-section{padding:3rem 0 3.5rem;}
    .hero-title{font-size:clamp(1.8rem,4vw,2.4rem);}
    .hero-stats{max-width:100%;}
    .stat-num{font-size:1.7rem;}
    .trust-stats{grid-template-columns:repeat(2,1fr);gap:1rem;}
    .cta-left,.cta-right{text-align:left;}
    .subscribe-form-row{flex-direction:column;}
    .subscribe-form{max-width:100%;margin-left:0;}
    .subscribe-form .btn{width:100%;}
}
@media (max-width:768px){
    .container{padding:0 1rem;}
    .section-padding{padding:3rem 0;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:2rem;}
    .story-content,.story-img-wrap{padding:0;}
    .hero-visual{padding-top:2rem;}
    .hero-float-card{right:.6rem;bottom:.6rem;padding:.7rem .9rem;max-width:200px;}
    .cat-list-item{flex-direction:column;align-items:flex-start;gap:.85rem;padding:1rem;}
    .cat-list-item img{width:100%;height:auto;aspect-ratio:16/7;}
    .cat-arrow{position:absolute;right:1rem;top:1rem;}
    .faq-answer{padding:0 1.25rem 0 3.8rem;}
    .faq-question{padding:1rem 1.1rem;}
}
@media (max-width:520px){
    .hero-title{font-size:1.6rem;}
    .hero-sub{font-size:1rem;}
    .hero-btns .btn{width:100%;justify-content:center;}
    .hero-stats{flex-direction:column;gap:.8rem;border-top:none;padding-top:0;}
    .stat-item{display:flex;align-items:baseline;gap:.6rem;border-bottom:1px solid var(--color-border);padding:.6rem 0;}
    .stat-item:not(:last-child)::after{display:none;}
    .stat-item:first-child{padding-left:0;}
    .stat-num{font-size:1.4rem;}
    .stat-label{margin-top:0;}
    .trust-logos{gap:.8rem;}
    .trust-logo{width:100px;height:32px;font-size:12px;}
    .footer-grid{grid-template-columns:1fr;gap:1.75rem;}
    .footer-bottom{flex-direction:column;text-align:center;justify-content:center;}
    .mega-panel{display:none;}
    .faq-question-text{font-size:15px;}
    .faq-answer{padding:0 .9rem 0 3.1rem;}
    .faq-icon{width:28px;height:28px;font-size:14px;}
}

/* roulang page: category1 */
:root {
            --color-primary: #2A7185;
            --color-primary-dark: #1C4D5F;
            --color-primary-light: #E3EFF3;
            --color-accent: #F2A03D;
            --color-bg: #F5F8FA;
            --color-section: #EAF1F5;
            --color-surface: #FFFFFF;
            --color-border: #D8E2E8;
            --color-text: #1E2A32;
            --color-text-secondary: #5A6B76;
            --color-text-invert: #F4F8FA;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --radius-full: 999px;
            --shadow-sm: 0 2px 10px rgba(42, 113, 133, 0.06);
            --shadow-md: 0 10px 28px rgba(42, 113, 133, 0.1);
            --shadow-lg: 0 20px 48px rgba(28, 77, 95, 0.16);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }

        ul,
        ol {
            list-style: none;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            height: 48px;
            padding: 0 1.75rem;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all .25s ease;
        }

        .btn-primary {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(242, 160, 61, .35);
        }

        .btn-primary:hover {
            background: #D98A2B;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(242, 160, 61, .4);
        }

        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 1px solid var(--color-primary);
        }

        .btn-outline:hover {
            background: var(--color-primary-light);
            transform: translateY(-2px);
        }

        .btn-sm {
            height: 42px;
            padding: 0 1.25rem;
            font-size: .9rem;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            height: 76px;
            display: flex;
            align-items: center;
            transition: box-shadow .2s ease;
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: .6rem;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: .95rem;
            letter-spacing: .02em;
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: .01em;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: .25rem;
        }

        .nav-link {
            position: relative;
            padding: .6rem 1.05rem;
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text);
            border-radius: var(--radius-sm);
            transition: color .2s ease, background .2s ease;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 1.05rem;
            right: 1.05rem;
            bottom: -2px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
            transform: scaleX(0);
            transform-origin: center;
            transition: transform .2s ease;
        }

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

        .nav-link.active {
            color: var(--color-primary);
        }

        .nav-link.active::after {
            transform: scaleX(1);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: .75rem;
            flex-shrink: 0;
        }

        .category-hero {
            background: linear-gradient(135deg, #F5F8FA 0%, #EAF1F5 100%);
            padding: clamp(3.5rem, 7vw, 5.5rem) 0;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(42, 113, 133, 0.1);
            top: -80px;
            left: -80px;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr .9fr;
            gap: 3rem;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-size: .875rem;
            font-weight: 600;
            padding: .35rem .9rem;
            border-radius: var(--radius-full);
            margin-bottom: 1.25rem;
        }

        .hero-title {
            font-size: clamp(1.75rem, 2.8vw, 2.5rem);
            line-height: 1.2;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }

        .hero-title .highlight {
            color: var(--color-primary);
        }

        .hero-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 540px;
            margin-bottom: 1.75rem;
        }

        .hero-buttons {
            display: flex;
            gap: 1rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .hero-stats {
            display: flex;
            border-top: 1px solid var(--color-border);
            padding-top: 1.5rem;
            max-width: 520px;
        }

        .hero-stats .stat-item {
            flex: 1;
            padding: 0 1rem;
        }

        .hero-stats .stat-item:first-child {
            padding-left: 0;
        }

        .hero-stats .stat-item+.stat-item {
            border-left: 1px solid var(--color-border);
        }

        .stat-number {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
            font-family: "DIN Alternate", "Roboto Condensed", sans-serif;
        }

        .stat-label {
            font-size: .875rem;
            color: var(--color-text-secondary);
        }

        .hero-visual {
            position: relative;
        }

        .hero-visual img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
        }

        .hero-float {
            position: absolute;
            right: -1rem;
            bottom: -1.5rem;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            padding: 1rem 1.25rem;
            display: flex;
            align-items: center;
            gap: .8rem;
            max-width: 240px;
            border: 1px solid var(--color-border);
        }

        .hero-float .float-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--color-accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .hero-float .float-text strong {
            display: block;
            font-size: .95rem;
            color: var(--color-text);
            line-height: 1.4;
        }

        .hero-float .float-text span {
            font-size: .8rem;
            color: var(--color-text-secondary);
        }

        .section {
            padding: clamp(4rem, 7vw, 6.5rem) 0;
        }

        .section-header {
            margin-bottom: 2.5rem;
            max-width: 700px;
        }

        .section-header.text-center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }

        .section-label {
            display: inline-block;
            font-size: .875rem;
            font-weight: 700;
            color: var(--color-primary);
            background: var(--color-primary-light);
            padding: .3rem .85rem;
            border-radius: var(--radius-full);
            margin-bottom: .75rem;
        }

        .section-title {
            font-size: clamp(1.5rem, 2.2vw, 2rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text);
            letter-spacing: -0.01em;
        }

        .section-desc {
            color: var(--color-text-secondary);
            font-size: 1rem;
            margin-top: .75rem;
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .feature-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1.75rem;
            box-shadow: var(--shadow-sm);
            transition: all .25s ease;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: #B7CAD4;
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 1.25rem;
        }

        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: .5rem;
        }

        .feature-card p {
            color: var(--color-text-secondary);
            font-size: .95rem;
            line-height: 1.7;
        }

        .scene-section {
            background: var(--color-section);
        }

        .scene-layout {
            display: grid;
            grid-template-columns: .85fr 1.15fr;
            gap: 2.5rem;
            align-items: center;
        }

        .scene-visual {
            position: relative;
        }

        .scene-visual img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
        }

        .scene-visual-note {
            position: absolute;
            left: 1rem;
            bottom: 1rem;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(4px);
            padding: .9rem 1.1rem;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
        }

        .scene-visual-note strong {
            display: block;
            font-size: .95rem;
            color: var(--color-text);
        }

        .scene-visual-note span {
            font-size: .8rem;
            color: var(--color-text-secondary);
        }

        .scene-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.25rem;
        }

        .scene-card {
            display: flex;
            gap: 1.25rem;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            box-shadow: var(--shadow-sm);
            transition: all .25s ease;
        }

        .scene-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .scene-num {
            font-family: "DIN Alternate", "Roboto Condensed", sans-serif;
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--color-primary-light);
            line-height: 1;
            flex-shrink: 0;
        }

        .scene-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: .35rem;
        }

        .scene-card p {
            font-size: .95rem;
            color: var(--color-text-secondary);
        }

        .process-section {
            background: var(--color-surface);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .process-step {
            position: relative;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem 1.75rem;
            box-shadow: var(--shadow-sm);
            transition: all .25s ease;
        }

        .process-step:hover {
            border-color: #B7CAD4;
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .process-step .step-num {
            font-family: "DIN Alternate", "Roboto Condensed", sans-serif;
            font-size: 3rem;
            font-weight: 800;
            color: var(--color-primary-light);
            line-height: 1;
            display: block;
            margin-bottom: 1rem;
        }

        .process-step h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: .5rem;
        }

        .process-step p {
            font-size: .9rem;
            color: var(--color-text-secondary);
        }

        .stats-section {
            background: var(--color-primary-dark);
            padding: clamp(3.5rem, 6vw, 5rem) 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            text-align: center;
        }

        .stats-grid .stat-number {
            color: #fff;
            font-size: clamp(2rem, 3vw, 3rem);
            font-weight: 800;
        }

        .stats-grid .stat-label {
            color: rgba(255, 255, 255, .75);
            font-size: .95rem;
            margin-top: .35rem;
        }

        .faq-section {
            background: var(--color-bg);
        }

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

        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow .25s ease;
        }

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

        .faq-item summary {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-text);
            list-style: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .q-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .85rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .faq-item summary .chevron {
            margin-left: auto;
            transition: transform .3s ease;
            color: var(--color-text-secondary);
            font-size: .9rem;
        }

        .faq-item[open] summary .chevron {
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            padding: 0 1.5rem 1.5rem 4.5rem;
            color: var(--color-text-secondary);
            font-size: .95rem;
        }

        .cta-section {
            padding: clamp(3rem, 5vw, 4.5rem) 0;
        }

        .cta-box {
            background: var(--color-primary-dark);
            border-radius: var(--radius-lg);
            padding: clamp(2.5rem, 5vw, 4rem);
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 2.5rem;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: "";
            position: absolute;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .07);
            top: -60px;
            right: -60px;
        }

        .cta-box h2 {
            color: #fff;
            font-size: clamp(1.5rem, 2.2vw, 2rem);
            font-weight: 700;
            margin-bottom: .75rem;
        }

        .cta-box p {
            color: rgba(255, 255, 255, .8);
            font-size: 1rem;
        }

        .cta-subscribe {
            position: relative;
            z-index: 1;
        }

        .subscribe-form {
            display: flex;
            gap: .75rem;
            flex-wrap: wrap;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 220px;
            height: 48px;
            border: none;
            border-radius: var(--radius-sm);
            padding: 0 1rem;
            font-size: 1rem;
            background: #fff;
            color: var(--color-text);
            outline: none;
            transition: box-shadow .2s ease;
        }

        .subscribe-form input:focus {
            box-shadow: 0 0 0 3px rgba(242, 160, 61, .4);
        }

        .subscribe-form .btn {
            height: 48px;
        }

        .privacy-note {
            font-size: .8125rem;
            color: rgba(255, 255, 255, .65);
            margin-top: .75rem;
        }

        .site-footer {
            background: #102A33;
            color: #B7C9D2;
            padding: 3.5rem 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 4fr 2fr 2fr 2fr;
            gap: 2.5rem;
            padding-bottom: 3rem;
        }

        .footer-brand .brand-logo {
            color: #fff;
        }

        .footer-brand .logo-mark {
            background: var(--color-accent);
            color: #102A33;
        }

        .footer-brand p {
            font-size: .9rem;
            line-height: 1.7;
            color: #8FAAB5;
            margin-top: 1rem;
            max-width: 300px;
        }

        .social-links {
            display: flex;
            gap: .75rem;
            margin-top: 1.25rem;
        }

        .social-link {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #B7C9D2;
            transition: all .25s ease;
        }

        .social-link:hover {
            background: var(--color-accent);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-title {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
        }

        .footer-links li {
            margin-bottom: .55rem;
        }

        .footer-links a {
            font-size: .9rem;
            color: #8FAAB5;
            transition: color .2s ease;
        }

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

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: .5rem;
            font-size: .9rem;
            color: #8FAAB5;
            margin-bottom: .55rem;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 1.25rem 0;
            font-size: .8125rem;
            color: #6E8A94;
            display: flex;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
        }

        @media (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .cta-box {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 3rem;
            }

            .scene-layout {
                grid-template-columns: 1fr;
            }

            .scene-visual {
                max-width: 640px;
            }

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

        @media (max-width: 768px) {
            .site-header {
                height: auto;
                padding: .8rem 0;
            }

            .header-inner {
                flex-wrap: wrap;
                gap: .5rem;
            }

            .main-nav {
                order: 3;
                width: 100%;
                overflow-x: auto;
                padding: .5rem 0 .25rem;
                -webkit-overflow-scrolling: touch;
            }

            .brand-logo {
                order: 1;
            }

            .header-actions {
                order: 2;
            }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

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

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

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }

            .category-hero {
                padding-top: 2.5rem;
            }

            .hero-stats {
                flex-wrap: wrap;
                gap: 1rem;
            }

            .hero-stats .stat-item + .stat-item {
                border-left: none;
            }

            .hero-stats .stat-item {
                padding: 0 1rem 0 0;
                flex: 1 1 30%;
            }

            .hero-float {
                position: static;
                margin-top: 1rem;
                max-width: 100%;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-form input {
                min-width: 100%;
            }

            .faq-item .faq-answer {
                padding-left: 1.5rem;
            }

            .faq-item summary {
                padding: 1rem 1.25rem;
                font-size: 1rem;
            }

            .cta-box {
                padding: 2rem 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.25rem;
            }

            .stats-grid .stat-number {
                font-size: 1.75rem;
            }

            .btn {
                padding: 0 1.25rem;
                height: 44px;
            }

            .hero-buttons .btn {
                width: 100%;
            }

            .hero-buttons {
                flex-direction: column;
            }

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

/* roulang page: article */
:root{
  --color-primary:#2A7185;
  --color-primary-dark:#1C4D5F;
  --color-primary-light:#E3EFF3;
  --color-accent:#F2A03D;
  --color-bg:#F5F8FA;
  --color-section:#EAF1F5;
  --color-surface:#FFFFFF;
  --color-border:#D8E2E8;
  --color-text:#1E2A32;
  --color-text-secondary:#5A6B76;
  --color-text-invert:#F4F8FA;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:24px;
  --radius-full:999px;
  --shadow-sm:0 2px 10px rgba(42,113,133,0.06);
  --shadow-md:0 10px 28px rgba(42,113,133,0.1);
  --shadow-lg:0 20px 48px rgba(28,77,95,0.16);
  --space-1:0.5rem;
  --space-2:0.75rem;
  --space-3:1rem;
  --space-4:1.5rem;
  --space-5:2rem;
  --space-6:3rem;
  --space-7:4.5rem;
  --space-8:6rem;
  --font-main:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,
*::before,
*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  background:var(--color-bg);
  color:var(--color-text);
  line-height:1.8;
  font-size:1rem;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--color-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--color-primary-dark)}
img{max-width:100%;display:block}
ul,ol,li{list-style:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  height:48px;
  padding:0 1.75rem;
  border-radius:var(--radius-sm);
  font-size:.95rem;
  font-weight:600;
  cursor:pointer;
  border:1px solid transparent;
  transition:all .2s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-primary{background:var(--color-primary);color:#fff}
.btn-primary:hover{background:var(--color-primary-dark);color:#fff}
.btn-accent{background:var(--color-accent);color:#fff}
.btn-accent:hover{background:#D98A2B;color:#fff}
.btn-outline{background:var(--color-surface);border:1px solid var(--color-primary);color:var(--color-primary)}
.btn-outline:hover{background:var(--color-primary-light);color:var(--color-primary-dark)}
.btn-block{width:100%}
.form-input{
  height:48px;
  width:100%;
  padding:0 1rem;
  border-radius:var(--radius-sm);
  border:1px solid #C9D7E0;
  font-size:.95rem;
  color:var(--color-text);
  background:var(--color-surface);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-input:focus{
  outline:none;
  border-color:var(--color-primary);
  box-shadow:0 0 0 3px rgba(42,113,133,.2);
}
.form-input::placeholder{color:#8CA0AC}
.form-message{font-size:.8125rem;margin-top:.6rem}
.form-message-success{color:var(--color-primary);font-weight:500}
/* top announce */
.top-announce{
  background:var(--color-primary-dark);
  color:rgba(255,255,255,.92);
  font-size:.875rem;
  height:40px;
  display:flex;
  align-items:center;
  position:relative;
  z-index:200;
}
.top-announce .container{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.announce-text{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.announce-close{
  background:rgba(255,255,255,.12);
  border:none;
  color:rgba(255,255,255,.85);
  width:24px;
  height:24px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  font-size:.75rem;
  flex:0 0 24px;
  transition:background .2s;
}
.announce-close:hover{background:rgba(255,255,255,.28);color:#fff}
/* header */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--color-surface);
  border-bottom:1px solid var(--color-border);
  box-shadow:0 2px 16px rgba(42,113,133,.04);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  min-height:76px;
}
.brand-logo{display:flex;align-items:center;gap:.6rem;flex-shrink:0}
.logo-mark{
  width:42px;
  height:42px;
  background:var(--color-primary);
  color:#fff;
  border-radius:var(--radius-sm);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:.95rem;
  letter-spacing:.02em;
}
.logo-text{font-size:1.25rem;font-weight:700;color:var(--color-text);letter-spacing:.01em}
.main-nav{display:flex;align-items:center;gap:.25rem}
.nav-link{
  display:inline-block;
  padding:.55rem 1.15rem;
  font-size:1rem;
  font-weight:500;
  color:var(--color-text);
  border-radius:var(--radius-sm);
  position:relative;
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:'';
  position:absolute;
  left:1.15rem;
  right:1.15rem;
  bottom:0;
  height:3px;
  border-radius:3px 3px 0 0;
  background:var(--color-primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover::after,
.nav-link.active::after{transform:scaleX(1)}
.nav-link:hover,
.nav-link.active{color:var(--color-primary)}
.mega-wrap{position:relative}
.mega-wrap::after{content:'';position:absolute;top:100%;left:0;right:0;height:10px}
.mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  border:1px solid var(--color-border);
  background:var(--color-surface);
  color:var(--color-text);
  font-size:.95rem;
  font-weight:500;
  padding:.55rem 1.15rem;
  border-radius:var(--radius-full);
  cursor:pointer;
  transition:all .2s ease;
}
.mega-trigger:hover,
.mega-wrap.mega-active .mega-trigger{
  border-color:var(--color-primary);
  color:var(--color-primary);
  background:var(--color-primary-light);
}
.mega-trigger svg{width:14px;height:14px;transition:transform .2s ease}
.mega-wrap:hover .mega-trigger svg,
.mega-wrap.mega-active .mega-trigger svg{transform:rotate(180deg)}
.mega-panel{
  position:absolute;
  top:100%;
  right:0;
  width:640px;
  background:var(--color-surface);
  border-radius:var(--radius-md);
  border:1px solid var(--color-border);
  box-shadow:var(--shadow-lg);
  padding:1.5rem 1.75rem;
  opacity:0;
  visibility:hidden;
  transform:translateY(4px);
  transition:all .2s ease;
  z-index:150;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-wrap.mega-active .mega-panel{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}
.mega-label{
  font-size:.8125rem;
  font-weight:600;
  color:var(--color-text-secondary);
  letter-spacing:.05em;
  margin-bottom:.75rem;
  padding-bottom:.4rem;
  border-bottom:1px solid var(--color-border);
}
.mega-group{display:flex;flex-direction:column;gap:.2rem}
.mega-link{
  display:flex;
  gap:.75rem;
  align-items:center;
  padding:.6rem .75rem;
  border-radius:var(--radius-sm);
  color:var(--color-text);
  transition:background .2s ease;
}
.mega-link:hover{background:var(--color-primary-light);color:var(--color-primary)}
.mega-icon{
  width:42px;
  height:42px;
  border-radius:var(--radius-sm);
  background:var(--color-primary-light);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.35rem;
  flex-shrink:0;
}
.mega-link strong{font-size:.95rem;font-weight:600;display:block;line-height:1.35}
.mega-link em{font-style:normal;font-size:.8125rem;color:var(--color-text-secondary)}
.mega-item{
  display:flex;
  gap:.75rem;
  align-items:center;
  padding:.55rem .75rem;
  border-radius:var(--radius-sm);
  color:var(--color-text);
  transition:background .2s ease;
}
.mega-item:hover{background:var(--color-primary-light);color:var(--color-primary)}
.mega-item img{
  width:56px;
  height:56px;
  object-fit:cover;
  border-radius:var(--radius-sm);
  flex-shrink:0;
}
.mega-item strong{display:block;font-size:.9rem;font-weight:600;line-height:1.4}
.mega-item em{font-style:normal;font-size:.75rem;color:var(--color-text-secondary)}
.mega-more{
  display:block;
  text-align:right;
  padding:.9rem .25rem 0;
  font-size:.875rem;
  font-weight:600;
  color:var(--color-primary);
  border-top:1px solid var(--color-border);
  margin-top:.75rem;
}
.mega-more:hover{color:var(--color-primary-dark)}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:var(--radius-sm);
  border:1px solid var(--color-border);
  background:var(--color-surface);
  align-items:center;
  justify-content:center;
  gap:4px;
  flex-direction:column;
  cursor:pointer;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--color-text);border-radius:2px;transition:all .25s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
/* breadcrumb */
.breadcrumb{
  background:var(--color-surface);
  border-bottom:1px solid var(--color-border);
  padding:.85rem 0;
}
.breadcrumb .crumbs{
  display:flex;
  align-items:center;
  gap:.5rem;
  font-size:.875rem;
  color:var(--color-text-secondary);
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--color-text-secondary)}
.breadcrumb a:hover{color:var(--color-primary)}
.breadcrumb .crumb-arrow{color:#B7C6CE}
.breadcrumb .current{
  color:var(--color-text);
  font-weight:500;
  max-width:300px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
/* article layout */
.article-main-layout{padding:var(--space-5) 0 var(--space-7)}
.article-content-col{padding-right:.75rem}
.article-card{
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:clamp(1.5rem,3vw,2.5rem);
}
.article-title{
  font-size:clamp(1.75rem,2.8vw,2.5rem);
  font-weight:700;
  line-height:1.25;
  color:var(--color-text);
  margin-bottom:1.25rem;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.55rem;
  font-size:.875rem;
  color:var(--color-text-secondary);
  padding-bottom:1.25rem;
  margin-bottom:1.5rem;
  border-bottom:1px solid var(--color-border);
}
.article-meta a{color:var(--color-primary);font-weight:500}
.article-meta a:hover{color:var(--color-primary-dark)}
.article-meta .meta-dot{color:#C3D1D8}
.article-summary{
  background:var(--color-primary-light);
  border-left:4px solid var(--color-primary);
  border-radius:var(--radius-md);
  padding:1.25rem 1.5rem;
  color:var(--color-text-secondary);
  font-size:1rem;
  line-height:1.75;
  margin-bottom:2rem;
}
/* cms content */
.cms-content{font-size:1rem;line-height:1.85;color:var(--color-text)}
.cms-content p{margin-bottom:1.5rem}
.cms-content h2{
  font-size:1.5rem;
  font-weight:600;
  margin:2.5rem 0 1rem;
  line-height:1.3;
}
.cms-content h3{
  font-size:1.25rem;
  font-weight:600;
  margin:2rem 0 .75rem;
  line-height:1.4;
}
.cms-content h4{
  font-size:1.1rem;
  font-weight:600;
  margin:1.5rem 0 .5rem;
}
.cms-content a{color:var(--color-primary);border-bottom:1px solid rgba(42,113,133,.3)}
.cms-content a:hover{color:var(--color-primary-dark)}
.cms-content img{border-radius:var(--radius-md);border:1px solid var(--color-border);margin:1.5rem 0}
.cms-content figure{margin:1.75rem 0}
.cms-content figure img{width:100%;height:auto;margin:0}
.cms-content figcaption{
  font-size:.875rem;
  color:var(--color-text-secondary);
  text-align:center;
  margin-top:.5rem;
}
.cms-content blockquote{
  border-left:4px solid var(--color-primary);
  background:var(--color-primary-light);
  border-radius:0 var(--radius-md) var(--radius-md) 0;
  padding:1.25rem 1.5rem;
  margin:1.75rem 0;
  color:var(--color-text-secondary);
}
.cms-content blockquote p:last-child{margin-bottom:0}
.cms-content ul,.cms-content ol{margin:0 0 1.5rem 1.5rem}
.cms-content ul li{list-style:disc;margin-bottom:.4rem}
.cms-content ol li{list-style:decimal;margin-bottom:.4rem}
.cms-content table{width:100%;border-collapse:collapse;margin:1.5rem 0}
.cms-content th,.cms-content td{border:1px solid var(--color-border);padding:.6rem .8rem;text-align:left;font-size:.9rem}
.cms-content th{background:var(--color-section);font-weight:600}
/* not found */
.article-notfound{text-align:center;padding:4rem 2rem}
.article-notfound .article-title{margin-bottom:1rem}
.article-notfound p{color:var(--color-text-secondary);margin-bottom:1.5rem}
/* related */
.article-related{margin-top:var(--space-5)}
.section-title{
  font-size:1.5rem;
  font-weight:600;
  color:var(--color-text);
  margin-bottom:1.25rem;
  display:flex;
  align-items:center;
  gap:.6rem;
}
.section-title::before{
  content:'';
  width:4px;
  height:22px;
  background:var(--color-primary);
  border-radius:2px;
}
.related-grid{margin-top:.5rem}
.related-card{margin-bottom:1.25rem}
.related-card-inner{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.related-card-inner:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:#B7CAD4;
}
.related-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.related-card-inner:hover .related-thumb img{transform:scale(1.03)}
.card-badge{
  position:absolute;
  top:.75rem;
  left:.75rem;
  background:var(--color-accent);
  color:#fff;
  font-size:.75rem;
  font-weight:600;
  padding:.25rem .75rem;
  border-radius:var(--radius-full);
  z-index:2;
}
.related-body{padding:1.25rem;display:flex;flex-direction:column;gap:.5rem;flex:1}
.related-title{
  font-size:1.05rem;
  font-weight:600;
  color:var(--color-text);
  line-height:1.45;
  transition:color .2s ease;
}
.related-card-inner:hover .related-title{color:var(--color-primary)}
.related-excerpt{
  font-size:.875rem;
  color:var(--color-text-secondary);
  line-height:1.6;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.related-time{font-size:.75rem;color:var(--color-text-secondary);margin-top:auto;padding-top:.4rem}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  margin-top:1.25rem;
  color:var(--color-primary);
  font-size:.95rem;
  font-weight:500;
  transition:transform .2s ease;
}
.back-link:hover{transform:translateX(-4px);color:var(--color-primary-dark)}
/* sidebar */
.article-sidebar{display:flex;flex-direction:column;gap:var(--space-5)}
.sidebar-widget{
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-sm);
  padding:1.5rem;
}
.widget-title{
  font-size:1.1rem;
  font-weight:600;
  color:var(--color-text);
  margin-bottom:1.25rem;
  padding-bottom:.75rem;
  border-bottom:2px solid var(--color-primary-light);
  display:flex;
  align-items:center;
  gap:.5rem;
}
.widget-title::before{
  content:'';
  width:4px;
  height:18px;
  background:var(--color-primary);
  border-radius:2px;
}
.category-list{display:flex;flex-direction:column}
.category-list li{border-bottom:1px solid var(--color-border)}
.category-list li:last-child{border-bottom:none}
.category-list a{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:.8rem .35rem;
  color:var(--color-text);
  font-size:.95rem;
  border-radius:var(--radius-sm);
  transition:background .2s ease,color .2s ease,padding .2s ease;
}
.category-list a:hover{
  background:var(--color-primary-light);
  color:var(--color-primary);
  padding-left:.65rem;
}
.category-list a.active{
  background:var(--color-primary-light);
  color:var(--color-primary);
  font-weight:600;
  padding-left:.65rem;
}
.cat-count{
  background:var(--color-primary-light);
  color:var(--color-primary);
  border-radius:var(--radius-full);
  font-size:.75rem;
  font-weight:600;
  padding:2px 9px;
}
.category-list a.active .cat-count{background:var(--color-primary);color:#fff}
.hot-list{counter-reset:hot}
.hot-list li{
  display:flex;
  gap:.7rem;
  align-items:flex-start;
  padding:.7rem 0;
  border-bottom:1px solid var(--color-border);
}
.hot-list li:last-child{border-bottom:none}
.hot-num{
  font-family:"DIN Alternate","Roboto Condensed",sans-serif;
  font-size:1.35rem;
  font-weight:700;
  color:var(--color-primary-light);
  line-height:1.4;
  min-width:1.8rem;
  text-align:center;
  transition:color .2s ease;
}
.hot-list li:hover .hot-num{color:var(--color-primary)}
.hot-list a{
  color:var(--color-text);
  font-size:.925rem;
  line-height:1.55;
  transition:color .2s ease;
}
.hot-list a:hover{color:var(--color-primary)}
.sidebar-subscribe{
  background:var(--color-primary-light);
  border-color:transparent;
}
.sidebar-subscribe .widget-title{border-bottom-color:rgba(42,113,133,.15)}
.subscribe-tip{font-size:.9rem;color:var(--color-text-secondary);margin-bottom:1rem;line-height:1.6}
.sidebar-form .form-input{margin-bottom:.75rem}
/* footer */
.site-footer{
  background:var(--color-primary-dark);
  color:#B7C9D2;
  padding:var(--space-7) 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:4fr 2fr 2fr 3fr;
  gap:2.5rem;
  padding-bottom:2.5rem;
}
.footer-brand .brand-logo{margin-bottom:1rem}
.footer-brand .logo-mark{background:var(--color-accent)}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:.9rem;line-height:1.75;margin-bottom:1.25rem;color:#B7C9D2}
.social-links{display:flex;gap:.7rem}
.social-link{
  display:flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  border-radius:50%;
  background:rgba(255,255,255,.08);
  color:#B7C9D2;
  transition:all .2s ease;
}
.social-link:hover{
  background:var(--color-accent);
  color:#fff;
  transform:translateY(-2px);
}
.footer-title{
  color:#F4F8FA;
  font-size:1rem;
  font-weight:600;
  margin-bottom:1.25rem;
  letter-spacing:.02em;
}
.footer-links li{margin-bottom:.6rem}
.footer-links a{color:#B7C9D2;font-size:.9rem;transition:color .2s ease}
.footer-links a:hover{color:var(--color-accent)}
.footer-links span{font-size:.9rem;color:#8FA6B0;cursor:default}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:1.25rem 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:.75rem;
  font-size:.8125rem;
  color:#8FA6B0;
}
.footer-bottom a{color:#8FA6B0}
.footer-bottom a:hover{color:var(--color-accent)}
/* responsive */
@media(max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:2rem}
  .mega-panel{width:560px}
}
@media(max-width:768px){
  .header-inner{
    flex-wrap:wrap;
    min-height:64px;
    padding:.6rem 0;
    row-gap:.4rem;
  }
  .nav-toggle{
    display:inline-flex;
    margin-left:auto;
  }
  .main-nav{
    order:3;
    width:100%;
    display:none;
    flex-direction:column;
    gap:.15rem;
    padding:.5rem 0 .25rem;
  }
  .mega-wrap{
    order:4;
    width:100%;
    display:none;
    padding:0 0 1rem;
  }
  .site-header.nav-open .main-nav{display:flex}
  .site-header.nav-open .mega-wrap{display:block}
  .mega-panel{
    position:static;
    width:100%;
    opacity:1;
    visibility:visible;
    transform:none;
    box-shadow:var(--shadow-sm);
    margin-top:.5rem;
  }
  .mega-grid{grid-template-columns:1fr;gap:1rem}
  .nav-link::after{display:none}
  .nav-link{
    padding:.75rem .9rem;
    border-radius:var(--radius-sm);
  }
  .breadcrumb .current{max-width:200px}
  .article-main-layout{padding:var(--space-4) 0 var(--space-6)}
  .article-content-col{padding-right:0}
  .article-sidebar{margin-top:var(--space-5)}
  .footer-grid{grid-template-columns:1fr;gap:2rem}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media(max-width:520px){
  .top-announce{height:auto;padding:.35rem 0}
  .announce-text{font-size:.8125rem}
  .container{padding:0 1rem}
  .logo-mark{width:38px;height:38px}
  .logo-text{font-size:1.1rem}
  .mega-trigger{font-size:.875rem;padding:.5rem .9rem}
  .article-card{padding:1.25rem}
  .related-card{margin-bottom:1rem}
  .sidebar-widget{padding:1.25rem}
}
:focus-visible{
  outline:3px solid rgba(42,113,133,.35);
  outline-offset:2px;
  border-radius:4px;
}