/* roulang page: index */
:root{
    --c-primary:#FF4D14;
    --c-secondary:#14E0B1;
    --c-ink:#0C0D0F;
    --c-paper:#F4F5F6;
    --c-wood:#C9A26B;
    --text-ink:#14161A;
    --muted:#6E747E;
    --line-light:#E2E5E9;
    --line-dark:#23262B;
    --radius-card:6px;
    --radius-btn:4px;
    --container:1240px;
    --font-sans:'Noto Sans SC',-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;
    --font-num:'Barlow Condensed','Oswald',var(--font-sans);
    --shadow-float:0 12px 32px rgba(12,13,15,.18);
    --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
    margin:0;
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.8;
    color:var(--text-ink);
    background:#FFFFFF;
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;padding:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.2;}
p{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
::selection{background:var(--c-primary);color:#fff;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 顶部促销条 + 主栏 ============ */
.site-header{position:sticky;top:-38px;z-index:80;}
.promo-bar{
    height:38px;
    background:var(--c-ink);
    color:#C9CDD4;
    font-size:12.5px;
    display:flex;
    align-items:center;
}
.promo-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;}
.promo-announce{position:relative;flex:1;height:38px;overflow:hidden;}
.promo-item{
    position:absolute;
    inset:0;
    display:flex;
    align-items:center;
    gap:9px;
    opacity:0;
    transform:translateY(6px);
    transition:opacity .4s var(--ease),transform .4s var(--ease);
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
}
.promo-item.is-active{opacity:1;transform:translateY(0);}
.promo-dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary);flex:0 0 6px;}
.promo-links{display:flex;align-items:center;gap:20px;flex:0 0 auto;}
.promo-links a{color:#9AA1AC;transition:color .2s ease-out;}
.promo-links a:hover{color:var(--c-primary);}

.main-bar{
    background:#fff;
    border-bottom:1px solid var(--line-light);
    transition:box-shadow .2s ease-out;
}
.main-bar.is-stuck{box-shadow:0 8px 20px rgba(0,0,0,.06);}
.main-inner{display:flex;align-items:center;gap:26px;height:68px;}
.logo{display:flex;align-items:center;gap:9px;font-size:20px;font-weight:800;letter-spacing:-.02em;flex:0 0 auto;}
.logo-mark{
    width:14px;height:14px;border-radius:2px;
    background:var(--c-primary);
    position:relative;
    flex:0 0 14px;
}
.logo-mark::after{
    content:"";position:absolute;right:-4px;bottom:-4px;width:6px;height:6px;
    background:var(--c-secondary);border-radius:1px;
}
.main-nav{display:flex;align-items:center;gap:4px;flex:1;}
.main-nav a{
    position:relative;
    padding:8px 12px;
    font-size:15px;
    font-weight:500;
    color:var(--text-ink);
    border-radius:var(--radius-btn);
    transition:color .2s ease-out,background .2s ease-out;
}
.main-nav a:hover{color:var(--c-primary);background:rgba(255,77,20,.06);}
.main-nav a.active{color:var(--c-primary);font-weight:700;}
.main-nav a.active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--c-primary);border-radius:2px;
}
.head-tools{display:flex;align-items:center;gap:6px;flex:0 0 auto;}
.search-wrap{display:flex;align-items:center;border:1px solid transparent;border-radius:var(--radius-btn);transition:all .25s var(--ease);}
.search-wrap.is-open{border-color:var(--line-light);background:#fff;}
.search-input{
    width:0;padding:9px 0;border:0;background:transparent;outline:none;
    font-size:14px;transition:width .25s var(--ease),padding .25s var(--ease);
}
.search-wrap.is-open .search-input{width:210px;padding:9px 12px 9px 4px;}
.search-input::placeholder{color:#A6ABB4;}
.icon-btn{
    width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
    border-radius:var(--radius-btn);color:var(--text-ink);font-size:15px;
    transition:background .2s ease-out,color .2s ease-out;position:relative;
}
.icon-btn:hover{background:var(--c-paper);color:var(--c-primary);}
.cart-badge{
    position:absolute;top:4px;right:3px;min-width:16px;height:16px;padding:0 4px;
    display:flex;align-items:center;justify-content:center;
    background:var(--c-primary);color:#fff;font-size:10px;font-weight:700;
    border-radius:999px;font-variant-numeric:tabular-nums;
    font-family:var(--font-num);
}
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 26px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:700;line-height:1;border:1px solid transparent;
    transition:background .2s ease-out,border-color .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.btn .arrow{transition:transform .2s ease-out;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:#FF602E;color:#fff;}
.btn-primary:hover .arrow{transform:translateX(4px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{border-color:#14161A;color:var(--text-ink);}
.btn-ghost:hover{background:rgba(255,77,20,.06);border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost-dark{border-color:#3A3E45;color:#fff;}
.btn-ghost-dark:hover{background:rgba(255,77,20,.12);border-color:var(--c-primary);color:#fff;}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn-dark{background:var(--c-ink);color:#fff;}
.btn-dark:hover{background:#1B1D21;color:#fff;}
.btn-dark:hover .arrow{transform:translateX(4px);}
.link-arrow{
    display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;
    color:var(--text-ink);padding-bottom:2px;
    border-bottom:1px solid var(--muted);
    transition:color .2s ease-out,border-color .2s ease-out;
}
.link-arrow span{transition:transform .2s ease-out;}
.link-arrow:hover{color:var(--c-primary);border-color:var(--c-primary);}
.link-arrow:hover span{transform:translateX(4px);}

/* 移动端汉堡 */
.burger{display:none;width:38px;height:38px;align-items:center;justify-content:center;font-size:18px;border-radius:var(--radius-btn);}
.burger:hover{background:var(--c-paper);}
.drawer-mask{
    position:fixed;inset:0;background:rgba(12,13,15,.6);
    opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s ease-out;z-index:190;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
    position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:360px;
    background:var(--c-ink);color:#fff;z-index:200;
    transform:translateX(100%);transition:transform .24s ease-out;
    display:flex;flex-direction:column;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--line-dark);}
.drawer-head .logo{color:#fff;}
.drawer-close{width:36px;height:36px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;border-radius:var(--radius-btn);}
.drawer-close:hover{background:rgba(255,255,255,.08);}
.drawer-nav{padding:12px 0;flex:1;overflow-y:auto;}
.drawer-nav a{
    display:flex;align-items:center;justify-content:space-between;
    padding:15px 22px;font-size:16px;font-weight:500;color:#D6DAE0;
    border-bottom:1px solid rgba(255,255,255,.06);
}
.drawer-nav a.active{color:var(--c-primary);font-weight:700;}
.drawer-nav a i{font-size:12px;color:#5C626B;}
.drawer-foot{padding:18px 22px;border-top:1px solid var(--line-dark);}
.drawer-foot .btn{width:100%;}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section--dark{background:var(--c-ink);color:#fff;}
.section--light{background:var(--c-paper);color:var(--text-ink);}
.section--white{background:#fff;}
.sec-head{max-width:780px;margin-bottom:52px;}
.sec-label{
    font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
    color:var(--c-primary);
}
.sec-title{font-size:clamp(1.6rem,3vw,2.6rem);margin-top:14px;}
.sec-desc{margin-top:16px;font-size:16px;color:var(--muted);}
.section--dark .sec-desc{color:#9AA1AC;}
.section--dark .sec-title{color:#fff;}

.tag{
    display:inline-flex;align-items:center;
    padding:4px 12px;border-radius:999px;
    font-size:12px;font-weight:700;letter-spacing:.04em;
    background:rgba(255,77,20,.1);color:var(--c-primary);
}
.section--dark .tag{background:rgba(255,77,20,.16);}
.tag-teal{background:rgba(20,224,177,.14);color:#0A9B7B;}
.section--dark .tag-teal{background:rgba(20,224,177,.16);color:var(--c-secondary);}

.num-font{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:0;}

/* ============ Hero ============ */
.hero{position:relative;min-height:86vh;display:flex;align-items:flex-end;overflow:hidden;background:var(--c-ink);color:#fff;}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.6;}
.hero-overlay{
    position:absolute;inset:0;
    background:linear-gradient(90deg,rgba(12,13,15,.97) 0%,rgba(12,13,15,.86) 40%,rgba(12,13,15,.34) 100%);
}
.hero-inner{position:relative;z-index:2;display:flex;flex-direction:column;gap:48px;padding-top:120px;padding-bottom:44px;width:100%;}
.hero-content{max-width:780px;}
.hero-badges{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:22px;}
.badge-burst{
    display:inline-flex;align-items:center;gap:7px;
    background:var(--c-primary);color:#fff;
    font-size:12.5px;font-weight:700;letter-spacing:.02em;
    padding:6px 14px;border-radius:999px;
}
.badge-burst::before{content:"";width:6px;height:6px;border-radius:50%;background:#fff;opacity:.9;}
.badge-chip{
    display:inline-flex;align-items:center;
    border:1px solid rgba(255,255,255,.24);color:#D6DAE0;
    font-size:12.5px;font-weight:500;
    padding:6px 14px;border-radius:999px;
    background:rgba(255,255,255,.04);
}
.badge-chip b{color:var(--c-secondary);font-family:var(--font-num);font-size:14px;margin:0 3px;}
h1.hero-title{font-size:clamp(2.2rem,5vw,4.4rem);line-height:1.05;font-weight:800;letter-spacing:-.02em;}
.hero-sub{margin-top:20px;font-size:clamp(1rem,1.4vw,1.2rem);color:#E4E7EB;font-weight:500;}
.hero-desc{margin-top:20px;max-width:700px;font-size:16px;line-height:1.85;color:#9AA1AC;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-metrics{
    display:flex;align-self:flex-end;
    border-top:1px solid var(--line-dark);
    max-width:100%;overflow-x:auto;
}
.hero-metrics .m{padding:14px 26px;border-right:1px solid var(--line-dark);white-space:nowrap;}
.hero-metrics .m:last-child{border-right:0;padding-right:0;}
.hero-metrics .m .v{font-family:var(--font-num);font-size:26px;font-weight:700;color:#fff;line-height:1;}
.hero-metrics .m .v i{font-style:normal;font-size:12px;color:var(--c-secondary);margin-left:3px;font-family:var(--font-sans);}
.hero-metrics .m .k{display:block;font-size:11px;color:#7B818B;letter-spacing:.06em;margin-top:6px;}

/* ============ 数据看板 ============ */
.dash-row{display:grid;grid-template-columns:repeat(6,1fr);}
.dash-item{padding:6px 22px;border-left:1px solid var(--line-dark);}
.dash-item:first-child{border-left:0;padding-left:0;}
.dash-num{
    font-family:var(--font-num);font-size:clamp(2.4rem,4vw,4rem);font-weight:700;
    line-height:1;color:#fff;font-variant-numeric:tabular-nums;
}
.dash-item:nth-child(2n) .dash-num{color:var(--c-secondary);}
.dash-item:nth-child(3n) .dash-num{color:var(--c-primary);}
.dash-num i{font-style:normal;font-size:14px;font-family:var(--font-sans);font-weight:500;color:#7B818B;margin-left:5px;}
.dash-item p{margin-top:12px;font-size:13px;color:#8C929B;}

/* ============ 内容矩阵 ============ */
.matrix{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch;}
.card{
    position:relative;background:#fff;border:1px solid var(--line-light);
    border-radius:var(--radius-card);overflow:hidden;
    transition:border-color .2s ease-out,transform .2s ease-out;
}
.card::before{
    content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--c-primary);
    transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;z-index:3;
}
.card:hover{border-color:var(--c-primary);transform:translateY(-2px);}
.card:hover::before{transform:scaleX(1);}
.thumb{position:relative;background:#E9EBEE;overflow:hidden;border-bottom:1px solid var(--line-light);}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.card:hover .thumb img{transform:scale(1.03);}
.ratio-16x9{aspect-ratio:16/9;}
.ratio-4x3{aspect-ratio:4/3;}
.ratio-1x1{aspect-ratio:1/1;}
.card-body{padding:26px;}
.card-body h3{font-size:21px;line-height:1.35;}
.card-body p{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.8;}
.card-body .tag{margin-bottom:14px;}
.card-body .link-arrow{margin-top:20px;}
.matrix-side{display:flex;flex-direction:column;gap:24px;}
.row-card{
    display:flex;align-items:center;gap:20px;
    padding:22px;background:#fff;
    border:1px solid var(--line-light);border-radius:var(--radius-card);
    position:relative;overflow:hidden;
    transition:border-color .2s ease-out,transform .2s ease-out;
    flex:1;
}
.row-card::before{
    content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--c-primary);
    transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;
}
.row-card:hover{border-color:var(--c-primary);transform:translateY(-2px);}
.row-card:hover::before{transform:scaleX(1);}
.row-media{width:96px;height:96px;flex:0 0 96px;border-radius:4px;overflow:hidden;border:1px solid var(--line-light);background:#E9EBEE;}
.row-media img{width:100%;height:100%;object-fit:cover;}
.row-text{flex:1;min-width:0;}
.row-text h4{font-size:17px;line-height:1.35;}
.row-text p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.7;}
.row-card > i{color:var(--muted);font-size:14px;transition:transform .2s ease-out,color .2s ease-out;}
.row-card:hover > i{color:var(--c-primary);transform:translateX(4px);}

/* ============ 频道入口 ============ */
.channel-card{
    display:grid;grid-template-columns:.85fr 1.15fr;gap:0;
    border:1px solid var(--line-light);border-radius:var(--radius-card);overflow:hidden;background:#fff;
    position:relative;transition:border-color .2s ease-out,transform .2s ease-out;
}
.channel-card::before{
    content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--c-primary);
    transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;z-index:3;
}
.channel-card:hover{border-color:var(--c-primary);transform:translateY(-2px);}
.channel-card:hover::before{transform:scaleX(1);}
.channel-media{background:#E9EBEE;border-right:1px solid var(--line-light);}
.channel-media img{width:100%;height:100%;object-fit:cover;}
.channel-body{padding:38px 40px;}
.channel-body h3{font-size:clamp(1.5rem,2.2vw,2rem);margin-top:14px;}
.channel-body p{margin-top:14px;font-size:15.5px;color:var(--muted);max-width:640px;}
.chip-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;}
.chip{
    display:inline-flex;align-items:center;
    padding:6px 14px;border-radius:999px;
    border:1px solid var(--line-light);background:#fff;
    font-size:13px;color:var(--muted);
}
.channel-body .link-arrow{margin-top:26px;}

/* ============ 客户案例 ============ */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.case-card .card-body h3{font-size:18px;}
.case-result{
    margin-top:18px;padding-top:18px;border-top:1px solid var(--line-light);
    font-size:14px;color:var(--muted);
}
.case-result b{font-family:var(--font-num);font-size:24px;color:var(--c-primary);font-weight:700;margin-right:4px;}

/* ============ 结果对比 ============ */
.compare{
    display:grid;grid-template-columns:1fr 1px 1fr;gap:0;
    border:1px solid var(--line-dark);border-radius:var(--radius-card);overflow:hidden;
}
.compare-col{padding:34px 32px;}
.compare-col h3{font-size:17px;color:#9AA1AC;font-weight:700;letter-spacing:.02em;}
.compare-col.is-brand h3{color:var(--c-primary);}
.compare-axis{background:var(--line-dark);}
.compare-rows{margin-top:26px;}
.compare-row{
    display:flex;align-items:baseline;justify-content:space-between;gap:16px;
    padding:16px 0;border-bottom:1px solid rgba(255,255,255,.08);
}
.compare-row:last-child{border-bottom:0;}
.compare-row .k{font-size:14px;color:#9AA1AC;}
.compare-row .v{font-family:var(--font-num);font-size:26px;font-weight:700;color:#E4E7EB;font-variant-numeric:tabular-nums;}
.compare-col.is-brand .compare-row .v{color:var(--c-secondary);}
.compare-row .v i{font-style:normal;font-size:13px;font-family:var(--font-sans);color:#7B818B;margin-left:4px;font-weight:500;}
.delta{
    display:inline-block;margin-left:8px;font-size:12px;font-weight:700;
    color:#0A9B7B;background:rgba(20,224,177,.14);
    padding:2px 8px;border-radius:999px;font-family:var(--font-sans);
}

/* ============ 里程碑 ============ */
.timeline{
    display:grid;grid-template-columns:repeat(6,1fr);gap:0;position:relative;padding-top:28px;
}
.timeline::before{
    content:"";position:absolute;top:32px;left:0;right:0;height:1px;background:var(--c-wood);opacity:.45;
}
.tl-item{position:relative;padding-right:20px;}
.tl-dot{
    width:8px;height:8px;border-radius:50%;background:var(--c-primary);
    position:absolute;top:0;left:0;
}
.tl-year{font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--c-primary);margin-top:22px;line-height:1;}
.tl-item h4{font-size:15px;margin-top:12px;color:#fff;}
.tl-item p{margin-top:8px;font-size:13px;color:#8C929B;line-height:1.75;}

/* ============ 横滑专题 ============ */
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;}
.rail-btns{display:flex;gap:10px;}
.rail-btn{
    width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid #14161A;border-radius:4px;color:var(--text-ink);
    transition:all .2s ease-out;
}
.rail-btn:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.rail-btn[disabled]{opacity:.3;cursor:not-allowed;}
.rail-btn[disabled]:hover{background:none;border-color:#14161A;color:var(--text-ink);}
.rail{
    display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
    scrollbar-width:none;padding-bottom:6px;
}
.rail::-webkit-scrollbar{display:none;}
.rail-card{
    flex:0 0 calc((100% - 48px)/3.2);scroll-snap-align:start;
    min-width:280px;
}
.rail-card .card-body{padding:20px;}
.rail-card .card-body h3{font-size:17px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rail-card .card-body .tag{margin-bottom:12px;}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:44px;}
.news-main{background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);overflow:hidden;}
.news-main .card-body h3{font-size:22px;line-height:1.4;}
.news-main .card-body p{font-size:15px;}
.news-date{font-size:13px;color:var(--c-wood);font-family:var(--font-num);letter-spacing:.04em;margin-top:18px;display:block;}
.news-list{border-top:1px solid var(--line-light);}
.news-item{
    display:flex;align-items:center;gap:18px;
    padding:20px 0;border-bottom:1px solid var(--line-light);
    transition:padding-left .2s ease-out;
}
.news-item:hover{padding-left:6px;}
.news-idx{
    font-family:var(--font-num);font-size:12px;color:var(--c-wood);
    letter-spacing:.08em;flex:0 0 26px;
}
.news-item h4{font-size:16px;font-weight:500;line-height:1.55;flex:1;transition:color .2s ease-out;}
.news-item:hover h4{color:var(--c-primary);}
.news-item .d{font-size:12.5px;color:var(--muted);font-family:var(--font-num);flex:0 0 auto;}

/* ============ 平台保障 ============ */
.guard-row{
    display:grid;grid-template-columns:repeat(4,1fr);
    border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);
}
.guard-item{padding:32px 26px;border-left:1px solid var(--line-dark);}
.guard-item:first-child{border-left:0;padding-left:0;}
.guard-item i{font-size:20px;color:var(--c-primary);}
.guard-item h4{font-size:15px;margin-top:16px;color:#fff;}
.guard-item p{margin-top:8px;font-size:12.5px;color:#8C929B;line-height:1.7;}

/* ============ 快速解答 ============ */
.quick-list{border-top:1px solid var(--line-light);}
.quick-item{border-bottom:1px solid var(--line-light);}
.quick-head{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 0;text-align:left;font-size:15px;font-weight:700;color:var(--text-ink);
    transition:color .2s ease-out;
}
.quick-head:hover{color:var(--c-primary);}
.quick-head i{font-size:13px;color:var(--muted);transition:transform .28s var(--ease),color .2s ease-out;}
.quick-item.is-open .quick-head i{transform:rotate(90deg);color:var(--c-primary);}
.quick-body{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
.quick-body p{padding:0 0 20px;font-size:14px;color:var(--muted);max-width:820px;}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line-light);}
.faq-item{border-bottom:1px solid var(--line-light);position:relative;}
.faq-item::before{
    content:"";position:absolute;left:0;top:12px;bottom:12px;width:2px;
    background:var(--c-primary);transform:scaleY(0);transform-origin:top;
    transition:transform .28s var(--ease);
}
.faq-item.is-open::before{transform:scaleY(1);}
.faq-head{
    width:100%;display:flex;align-items:flex-start;gap:22px;
    padding:26px 0 26px 22px;text-align:left;
}
.faq-idx{
    font-family:var(--font-num);font-size:18px;font-weight:700;color:var(--c-primary);
    flex:0 0 42px;line-height:1.5;font-variant-numeric:tabular-nums;
}
.faq-q{flex:1;font-size:17px;font-weight:700;line-height:1.55;color:var(--text-ink);transition:color .2s ease-out;}
.faq-head:hover .faq-q{color:var(--c-primary);}
.faq-head i{flex:0 0 auto;margin-top:4px;font-size:14px;color:var(--muted);transition:transform .28s var(--ease),color .2s ease-out;}
.faq-item.is-open .faq-head i{transform:rotate(180deg);color:var(--c-primary);}
.faq-body{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
.faq-body p{padding:0 60px 26px 64px;font-size:15px;color:var(--muted);max-width:860px;}

/* ============ 转化表单 ============ */
.form-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.form-left h2{font-size:clamp(1.6rem,3vw,2.4rem);color:#fff;}
.form-left p{margin-top:16px;font-size:15.5px;color:#9AA1AC;max-width:460px;}
.form-points{margin-top:28px;display:flex;flex-direction:column;gap:14px;}
.form-points li{display:flex;align-items:flex-start;gap:12px;font-size:15px;color:#D6DAE0;}
.form-points li i{color:var(--c-primary);margin-top:6px;font-size:13px;}
.form-card{
    background:#111317;border:1px solid #2A2E34;border-radius:var(--radius-card);padding:32px;
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:#9AA1AC;margin-bottom:8px;font-weight:500;}
.field input,.field select,.field textarea{
    width:100%;padding:12px 14px;
    background:#0C0D0F;border:1px solid #2A2E34;border-radius:var(--radius-btn);
    color:#fff;font-size:15px;outline:none;
    transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field input::placeholder,.field textarea::placeholder{color:#5C626B;}
.field input:focus,.field select:focus,.field textarea:focus{
    border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(255,77,20,.18);
}
.field textarea{resize:vertical;min-height:104px;}
.field select option{background:#0C0D0F;color:#fff;}
.form-note{margin-top:14px;font-size:12px;color:#6E747E;line-height:1.7;}

/* ============ 评价 ============ */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote-card{
    background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);
    padding:32px 28px;position:relative;
    transition:border-color .2s ease-out,transform .2s ease-out;
}
.quote-card:hover{border-color:var(--c-primary);transform:translateY(-2px);}
.quote-mark{
    font-family:Georgia,serif;font-size:48px;line-height:1;color:var(--c-wood);
    opacity:.5;display:block;margin-bottom:6px;
}
.quote-card p{font-size:15px;color:var(--text-ink);line-height:1.85;}
.quote-meta{display:flex;align-items:center;gap:12px;margin-top:24px;padding-top:20px;border-top:1px solid var(--line-light);}
.avatar{
    width:40px;height:40px;border-radius:50%;flex:0 0 40px;
    background:var(--c-ink);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-family:var(--font-num);font-size:17px;font-weight:700;
}
.quote-meta .n{font-size:14px;font-weight:700;}
.quote-meta .r{font-size:12px;color:var(--muted);}

/* ============ 使用路径 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;}
.steps::before{content:"";position:absolute;top:16px;left:16px;right:16px;height:1px;background:var(--line-light);}
.step{position:relative;padding-right:24px;}
.step-num{
    width:32px;height:32px;border-radius:50%;
    border:1px solid var(--c-primary);color:var(--c-primary);
    display:flex;align-items:center;justify-content:center;
    font-family:var(--font-num);font-size:16px;font-weight:700;
    background:var(--c-paper);position:relative;z-index:2;
}
.step h4{font-size:16px;margin-top:20px;}
.step p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.75;}

/* ============ 底部 CTA ============ */
.cta-band{background:var(--c-primary);color:#fff;padding:86px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(1.6rem,3vw,2.6rem);color:#fff;max-width:660px;}
.cta-inner .sub{margin-top:14px;font-size:15px;color:rgba(255,255,255,.86);}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:#9AA1AC;border-top:1px solid var(--c-wood);padding-top:76px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:44px;padding-bottom:56px;}
.footer-brand .logo{color:#fff;margin-bottom:18px;}
.footer-brand p{font-size:14px;line-height:1.85;color:#8C929B;max-width:340px;}
.footer-col h4{font-size:13px;letter-spacing:.14em;color:#fff;margin-bottom:20px;font-weight:700;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:#9AA1AC;transition:color .2s ease-out;}
.footer-col a:hover{color:var(--c-primary);}
.footer-sub input{
    width:100%;padding:11px 14px;margin-bottom:12px;
    background:#131519;border:1px solid #2A2E34;border-radius:var(--radius-btn);
    color:#fff;font-size:14px;outline:none;transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.footer-sub input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(255,77,20,.18);}
.footer-social{display:flex;gap:10px;margin-top:22px;}
.footer-social a{
    width:36px;height:36px;display:flex;align-items:center;justify-content:center;
    border:1px solid #2A2E34;border-radius:4px;color:#9AA1AC;
    transition:all .2s ease-out;
}
.footer-social a:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(255,77,20,.08);}
.footer-bottom{
    border-top:1px solid var(--line-dark);
    padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:#6E747E;
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1280px){
    .search-wrap.is-open .search-input{width:150px;}
    .main-nav a{padding:8px 9px;font-size:14.5px;}
}
@media (max-width:1024px){
    .section{padding:76px 0;}
    .matrix{grid-template-columns:1fr;}
    .case-grid{grid-template-columns:repeat(2,1fr);}
    .dash-row{grid-template-columns:repeat(3,1fr);gap:28px 0;}
    .dash-item:nth-child(4){border-left:0;padding-left:0;}
    .timeline{grid-template-columns:repeat(3,1fr);gap:36px 0;}
    .timeline::before{display:none;}
    .tl-item{padding-top:0;}
    .tl-dot{position:static;}
    .rail-card{flex:0 0 calc((100% - 24px)/2.1);}
    .news-grid{grid-template-columns:1fr;gap:32px;}
    .guard-row{grid-template-columns:repeat(2,1fr);}
    .guard-item:nth-child(3){border-left:0;padding-left:0;}
    .guard-item:nth-child(n+3){border-top:1px solid var(--line-dark);}
    .form-grid{grid-template-columns:1fr;gap:36px;}
    .quote-grid{grid-template-columns:1fr;}
    .steps{grid-template-columns:repeat(2,1fr);gap:36px 0;}
    .steps::before{display:none;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
    .channel-body{padding:30px 28px;}
}
@media (max-width:900px){
    .main-nav{display:none;}
    .burger{display:inline-flex;}
    .search-wrap.is-open .search-input{width:130px;}
    .hero{min-height:78vh;}
    .hero-inner{padding-top:96px;}
}
@media (max-width:768px){
    .container{padding:0 20px;}
    .section{padding:56px 0;}
    .sec-head{margin-bottom:34px;}
    .main-inner{gap:10px;height:62px;}
    .head-tools .btn-primary{display:none;}
    .hero{min-height:72vh;}
    h1.hero-title{font-size:clamp(1.9rem,7.5vw,2.6rem);}
    .hero-desc{font-size:15px;}
    .hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);width:100%;}
    .hero-metrics .m{padding:14px 12px;border-right:1px solid var(--line-dark);}
    .hero-metrics .m:last-child{padding-right:12px;}
    .hero-metrics .m:nth-child(3n){border-right:0;}
    .dash-row{grid-template-columns:repeat(2,1fr);}
    .dash-item{border-left:1px solid var(--line-dark);padding:0 16px;}
    .dash-item:nth-child(odd){border-left:0;padding-left:0;}
    .case-grid{grid-template-columns:1fr;}
    .compare{grid-template-columns:1fr;}
    .compare-axis{height:1px;width:100%;}
    .timeline{grid-template-columns:repeat(2,1fr);}
    .rail-card{flex:0 0 78%;}
    .guard-row{grid-template-columns:1fr;}
    .guard-item{border-left:0;padding:26px 0;}
    .guard-item:nth-child(n+2){border-top:1px solid var(--line-dark);}
    .news-item{flex-wrap:wrap;gap:8px 14px;}
    .news-item h4{flex:1 1 100%;order:2;}
    .news-item .d{order:3;}
    .faq-head{gap:14px;padding-left:16px;}
    .faq-idx{flex:0 0 32px;font-size:16px;}
    .faq-body p{padding:0 24px 24px 46px;}
    .form-card{padding:24px 20px;}
    .footer-grid{grid-template-columns:1fr;gap:32px;}
    .cta-band{padding:60px 0;}
}
@media (max-width:520px){
    .container{padding:0 16px;}
    .section{padding:48px 0;}
    .hero-actions{flex-direction:column;align-items:stretch;}
    .hero-actions .btn{width:100%;}
    .btn{padding:13px 20px;}
    .card-body{padding:20px;}
    .row-card{flex-wrap:wrap;gap:14px;}
    .row-media{width:72px;height:72px;flex:0 0 72px;}
    .channel-card{grid-template-columns:1fr;}
    .channel-media{border-right:0;border-bottom:1px solid var(--line-light);}
    .steps{grid-template-columns:1fr;gap:28px;}
    .compare-col{padding:24px 20px;}
    .compare-row .v{font-size:22px;}
    .cta-inner{flex-direction:column;align-items:flex-start;}
    .cta-inner .btn{width:100%;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .promo-links{display:none;}
}
@media (prefers-reduced-motion: reduce){
    *,*::before,*::after{animation:none !important;transition:none !important;}
    .reveal{opacity:1 !important;transform:none !important;}
    html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --c-primary:#FF4D14;
  --c-secondary:#14E0B1;
  --c-ink:#0C0D0F;
  --c-paper:#F4F5F6;
  --c-wood:#C9A26B;
  --text-ink:#14161A;
  --muted:#6E747E;
  --line-light:#E2E5E9;
  --line-dark:#23262B;
  --radius-card:6px;
  --radius-btn:4px;
  --container:1240px;
  --font-sans:'Noto Sans SC',-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;
  --font-num:'Barlow Condensed','Oswald',var(--font-sans);
  --shadow-float:0 12px 32px rgba(12,13,15,.18);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text-ink);
  background:#FFFFFF;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;padding:0;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.2;}
p{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 顶部促销条 + 主栏 ============ */
.site-header{position:sticky;top:-38px;z-index:80;}
.promo-bar{background:var(--c-ink);color:#fff;height:38px;display:flex;align-items:center;font-size:12.5px;}
.promo-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;}
.promo-announce{position:relative;height:38px;flex:1 1 auto;min-width:0;}
.promo-item{
  position:absolute;inset:0;display:flex;align-items:center;gap:9px;
  opacity:0;transform:translateY(6px);
  transition:opacity .4s var(--ease),transform .4s var(--ease);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.promo-item.is-active{opacity:1;transform:translateY(0);}
.promo-dot{width:6px;height:6px;border-radius:999px;background:var(--c-primary);flex:0 0 6px;}
.promo-links{display:flex;align-items:center;gap:18px;flex:0 0 auto;}
.promo-links a{color:#9AA1AC;transition:color .2s ease-out;}
.promo-links a:hover{color:var(--c-primary);}
.main-bar{background:#fff;border-bottom:1px solid var(--line-light);transition:box-shadow .2s ease-out;}
.main-bar.is-stuck{box-shadow:0 8px 20px rgba(0,0,0,.06);}
.main-inner{display:flex;align-items:center;gap:20px;height:68px;}
.logo{display:flex;align-items:center;gap:9px;font-size:20px;font-weight:800;letter-spacing:-.02em;flex:0 0 auto;}
.logo-mark{width:14px;height:14px;border-radius:2px;background:var(--c-primary);position:relative;flex:0 0 14px;}
.logo-mark::after{content:"";position:absolute;right:-4px;bottom:-4px;width:6px;height:6px;background:var(--c-secondary);border-radius:1px;}
.main-nav{display:flex;align-items:center;gap:2px;flex:1 1 auto;min-width:0;}
.main-nav a{
  position:relative;padding:8px 10px;font-size:14.5px;font-weight:500;color:var(--text-ink);
  border-radius:var(--radius-btn);white-space:nowrap;
  transition:color .2s ease-out,background .2s ease-out;
}
.main-nav a:hover{color:var(--c-primary);background:rgba(255,77,20,.06);}
.main-nav a.active{color:var(--c-primary);font-weight:700;}
.main-nav a.active::after{content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;background:var(--c-primary);border-radius:2px;}
.head-tools{display:flex;align-items:center;gap:6px;flex:0 0 auto;}
.search-wrap{display:flex;align-items:center;border:1px solid transparent;border-radius:var(--radius-btn);transition:all .25s var(--ease);}
.search-wrap.is-open{border-color:var(--line-light);background:#fff;}
.search-input{width:0;padding:9px 0;border:0;background:transparent;outline:none;font-size:14px;transition:width .25s var(--ease),padding .25s var(--ease);}
.search-wrap.is-open .search-input{width:200px;padding:9px 12px 9px 4px;}
.search-input::placeholder{color:#A6ABB4;}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--radius-btn);color:var(--text-ink);font-size:15px;position:relative;
  transition:background .2s ease-out,color .2s ease-out;
}
.icon-btn:hover{background:var(--c-paper);color:var(--c-primary);}
.cart-badge{
  position:absolute;top:4px;right:3px;min-width:16px;height:16px;padding:0 4px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;font-size:10px;font-weight:700;
  border-radius:999px;font-family:var(--font-num);font-variant-numeric:tabular-nums;
}
.burger{display:none;width:40px;height:40px;align-items:center;justify-content:center;border-radius:var(--radius-btn);font-size:17px;}
.burger:hover{background:var(--c-paper);color:var(--c-primary);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;line-height:1;border:1px solid transparent;
  transition:background .2s ease-out,border-color .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.btn .arrow{transition:transform .2s ease-out;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:#FF602E;color:#fff;}
.btn-primary:hover .arrow{transform:translateX(4px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{border-color:#14161A;color:var(--text-ink);background:transparent;}
.btn-ghost:hover{background:rgba(255,77,20,.06);border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost-dark{border-color:#3A3E45;color:#fff;background:transparent;}
.btn-ghost-dark:hover{background:rgba(255,77,20,.12);border-color:var(--c-primary);color:#fff;}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn:disabled,.btn.is-disabled{opacity:.4;pointer-events:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;
  color:var(--text-ink);padding-bottom:2px;border-bottom:1px solid var(--muted);
  transition:color .2s ease-out,border-color .2s ease-out;
}
.link-arrow span{transition:transform .2s ease-out;}
.link-arrow:hover{color:var(--c-primary);border-color:var(--c-primary);}
.link-arrow:hover span{transform:translateX(4px);}

/* ============ 抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(12,13,15,.6);
  opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s ease-out;z-index:190;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:360px;
  background:var(--c-ink);color:#fff;z-index:200;
  transform:translateX(100%);transition:transform .24s ease-out;
  display:flex;flex-direction:column;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 22px;border-bottom:1px solid var(--line-dark);}
.drawer-head .logo{color:#fff;}
.drawer-close{width:36px;height:36px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;border-radius:var(--radius-btn);}
.drawer-close:hover{background:rgba(255,255,255,.08);}
.drawer-nav{padding:8px 0;overflow-y:auto;flex:1;}
.drawer-nav a{display:block;padding:14px 22px;font-size:15px;color:#D6DAE0;border-bottom:1px solid rgba(255,255,255,.05);transition:color .2s,background .2s;}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--c-primary);background:rgba(255,77,20,.08);}
.drawer-foot{padding:18px 22px;border-top:1px solid var(--line-dark);}

/* ============ 分类页头 ============ */
.cat-head{padding:42px 0 34px;border-bottom:1px solid var(--line-light);}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px;}
.breadcrumb a{color:var(--muted);transition:color .2s;}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#C3C7CD;}
.cat-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cat-title{font-size:clamp(1.8rem,3.4vw,2.6rem);line-height:1.12;font-weight:800;}
.cat-title em{font-style:normal;color:var(--c-primary);}
.cat-lead{margin-top:12px;font-size:15px;color:var(--muted);max-width:720px;}
.cat-stats{display:flex;gap:26px;flex-wrap:wrap;font-size:13px;color:var(--muted);}
.cat-stats strong{display:block;font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--text-ink);line-height:1.2;font-variant-numeric:tabular-nums;}
.cat-stats strong i{font-style:normal;font-size:13px;color:var(--muted);margin-left:2px;font-family:var(--font-sans);}

/* ============ 筛选条 ============ */
.filter-bar{
  position:sticky;top:76px;z-index:60;background:#fff;
  border-bottom:1px solid var(--line-light);padding:12px 0;
}
.filter-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;}
.chips{display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;flex:1 1 auto;}
.chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;padding:7px 16px;border:1px solid var(--line-light);border-radius:999px;
  font-size:13.5px;color:var(--text-ink);background:#fff;
  transition:border-color .2s ease-out,color .2s ease-out,background .2s ease-out;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);}
.chip.is-active{border-color:var(--c-primary);color:var(--c-primary);background:rgba(255,77,20,.07);font-weight:700;}
.sort-box{display:flex;align-items:center;gap:8px;flex:0 0 auto;font-size:13px;color:var(--muted);}
.sort-box select{
  padding:8px 12px;border:1px solid var(--line-light);border-radius:var(--radius-btn);
  background:#fff;font-size:13.5px;color:var(--text-ink);outline:none;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.sort-box select:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(255,77,20,.18);}

/* ============ 板块通用 ============ */
.section{padding:84px 0;}
.section-paper{background:var(--c-paper);}
.section-dark{background:var(--c-ink);color:#fff;}
.section-head{margin-bottom:34px;}
.eyebrow{display:block;font-size:12px;letter-spacing:.18em;color:var(--c-primary);font-weight:700;margin-bottom:12px;}
.section-dark .eyebrow{color:var(--c-secondary);}
.h2{font-size:clamp(1.6rem,3vw,2.4rem);}
.section-sub{margin-top:12px;font-size:15px;color:var(--muted);max-width:740px;}
.section-dark .section-sub{color:#9AA1AC;}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.v-card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);
  transition:border-color .2s ease-out,transform .2s ease-out;
}
.v-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--c-primary);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;z-index:2;
}
.v-card:hover{border-color:var(--c-primary);transform:translateY(-2px);}
.v-card:hover::before{transform:scaleX(1);}
.thumb{position:relative;aspect-ratio:4/3;background:var(--c-paper);border-bottom:1px solid var(--line-light);overflow:hidden;}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.v-card:hover .thumb img{transform:scale(1.03);}
.tag-on-thumb{
  position:absolute;top:12px;left:12px;padding:4px 10px;border-radius:999px;
  background:rgba(12,13,15,.78);color:#fff;font-size:11.5px;letter-spacing:.04em;
}
.v-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1 1 auto;}
.v-body h3{
  font-size:17px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.v-body p{
  margin-top:9px;font-size:14px;line-height:1.72;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.v-meta{
  margin-top:16px;padding-top:13px;border-top:1px solid var(--line-light);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.v-meta .v-meta-t{color:var(--c-primary);font-weight:700;}
.empty-state{
  display:none;margin-top:8px;padding:56px 24px;text-align:center;
  border:1px dashed var(--line-light);border-radius:var(--radius-card);color:var(--muted);font-size:14px;
}
.empty-state.is-show{display:block;}

/* ============ 热门条目 ============ */
.hot-list{border-top:1px solid var(--line-dark);}
.hot-row{
  display:flex;align-items:center;gap:18px;padding:18px 0;
  border-bottom:1px solid var(--line-dark);
  transition:background .2s ease-out,padding-left .2s ease-out;
}
.hot-row:hover{background:rgba(255,255,255,.03);padding-left:8px;}
.hot-idx{font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--c-wood);flex:0 0 40px;font-variant-numeric:tabular-nums;}
.hot-title{font-size:15.5px;font-weight:500;color:#EAECEF;flex:1 1 auto;min-width:0;}
.hot-date{font-size:12.5px;color:#8B919B;flex:0 0 auto;font-variant-numeric:tabular-nums;}
.hot-arrow{color:#5C6169;font-size:13px;flex:0 0 auto;transition:color .2s,transform .2s;}
.hot-row:hover .hot-arrow{color:var(--c-primary);transform:translateX(4px);}

/* ============ 数据概览条 ============ */
.stat-strip{
  display:flex;align-items:stretch;background:#fff;
  border:1px solid var(--line-light);border-radius:var(--radius-card);
  padding:30px 0;
}
.stat-item{flex:1 1 0;text-align:center;padding:0 18px;border-right:1px solid var(--line-light);}
.stat-item:last-child{border-right:0;}
.stat-num{font-family:var(--font-num);font-size:clamp(32px,4vw,46px);font-weight:700;line-height:1;color:var(--c-ink);font-variant-numeric:tabular-nums;}
.stat-num.accent{color:var(--c-primary);}
.stat-num.teal{color:#0FB48D;}
.stat-num i{font-style:normal;font-size:14px;font-family:var(--font-sans);color:var(--muted);margin-left:3px;}
.stat-label{margin-top:10px;font-size:11.5px;letter-spacing:.06em;color:var(--muted);}

/* ============ 标签云 ============ */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;padding:8px 16px;border:1px solid var(--line-light);
  border-radius:999px;font-size:13.5px;color:var(--text-ink);background:#fff;
  transition:border-color .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line-light);}
.faq-item{border-bottom:1px solid var(--line-light);}
.faq-q{
  position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;
  gap:18px;padding:18px 0 18px 16px;font-size:15.5px;font-weight:700;text-align:left;color:var(--text-ink);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:2px;background:var(--c-primary);
  transform:scaleY(0);transform-origin:top;transition:transform .28s var(--ease);
}
.faq-item.is-open .faq-q::before{transform:scaleY(1);}
.faq-q i{font-size:13px;color:var(--muted);transition:transform .28s var(--ease);flex:0 0 auto;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);color:var(--c-primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
.faq-a-inner{padding:0 40px 20px 16px;font-size:14px;line-height:1.78;color:var(--muted);}

/* ============ 查看更多 ============ */
.more-wrap{padding:56px 0 84px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:#C8CCD3;border-top:1px solid var(--c-wood);padding-top:60px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.85;color:#9198A3;max-width:400px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-dark);border-radius:var(--radius-btn);color:#C8CCD3;font-size:14px;
  transition:border-color .2s ease-out,color .2s ease-out,background .2s ease-out;
}
.footer-social a:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(255,77,20,.1);}
.footer-col h4{font-size:12px;letter-spacing:.18em;color:#8B919B;font-weight:700;margin-bottom:16px;}
.footer-col li{margin-bottom:11px;}
.footer-col li a{font-size:14px;color:#C8CCD3;transition:color .2s ease-out;}
.footer-col li a:hover{color:var(--c-primary);}
.footer-sub form{display:flex;flex-direction:column;gap:10px;}
.footer-sub input{
  width:100%;padding:11px 14px;background:#15171B;border:1px solid #2A2E34;
  border-radius:var(--radius-btn);color:#fff;font-size:14px;outline:none;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.footer-sub input::placeholder{color:#6C7280;}
.footer-sub input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(255,77,20,.18);}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:#7A808A;
}

/* ============ 滚动动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .main-nav a{padding:8px 8px;font-size:14px;}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:34px;}
  .footer-sub{grid-column:1 / -1;}
}
@media (max-width:1024px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .section{padding:70px 0;}
  .main-nav{display:none;}
  .burger{display:inline-flex;}
  .filter-bar{top:70px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  body{font-size:15.5px;}
  .promo-links{display:none;}
  .promo-item{font-size:12px;}
  .main-inner{gap:10px;height:62px;}
  .logo{font-size:18px;}
  .search-wrap.is-open .search-input{width:130px;}
  .head-tools .btn-primary{display:none;}
  .cat-head{padding:30px 0 26px;}
  .cat-head-row{flex-direction:column;align-items:flex-start;gap:20px;}
  .cat-stats{gap:20px;}
  .cat-stats strong{font-size:22px;}
  .filter-bar{top:62px;padding:10px 0;}
  .filter-inner{flex-wrap:wrap;gap:12px;}
  .chips{width:100%;}
  .section{padding:52px 0;}
  .card-grid{grid-template-columns:1fr;gap:20px;}
  .stat-strip{flex-wrap:wrap;padding:22px 0;gap:0;}
  .stat-item{flex:0 0 50%;border-right:0;padding:14px 10px;margin-bottom:6px;}
  .stat-item:nth-child(odd){border-right:1px solid var(--line-light);}
  .hot-row{gap:12px;flex-wrap:wrap;}
  .hot-idx{flex:0 0 30px;font-size:18px;}
  .hot-title{font-size:14.5px;flex:1 1 100%;}
  .cat-stats .cat-stat-extra{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .section{padding:44px 0;}
  .main-inner{gap:6px;}
  .icon-btn{width:34px;height:34px;}
  .search-wrap.is-open .search-input{width:100px;}
  .cat-title{font-size:1.7rem;}
  .stat-item{flex:0 0 100%;border-right:0 !important;}
  .stat-item:not(:last-child){border-bottom:1px solid var(--line-light);}
  .btn{width:100%;}
  .btn-sm,.head-tools .btn{width:auto;}
  .more-wrap{padding:40px 0 64px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  .v-card,.thumb img,.hot-row,.tag,.btn,.faq-q i,.faq-a{transition:none !important;}
}