/* roulang page: index */
:root{
  --c-ink:#161A17;
  --c-ink-2:#4A5450;
  --c-ink-3:#7C857F;
  --c-primary:#1C5B4A;
  --c-primary-600:#164A3C;
  --c-primary-100:#E4EFEA;
  --c-accent:#D0762C;
  --c-accent-600:#B25F1C;
  --c-accent-100:#FBEDE0;
  --c-bg:#F6F3EC;
  --c-surface:#FFFFFF;
  --c-border:#E2DCD0;
  --c-line-strong:#C9C1B2;
  --c-ok:#2E7D5B;
  --c-warn:#B23A2A;
  --r-sm:6px;
  --r-md:10px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,26,23,.04),0 1px 3px rgba(22,26,23,.06);
  --sh-2:0 6px 20px -8px rgba(22,26,23,.18);
  --sh-3:0 14px 34px -14px rgba(28,91,74,.28);
  --bs-primary:#1C5B4A;
  --bs-body-bg:#F6F3EC;
  --bs-body-color:#161A17;
  --bs-border-radius:10px;
  --bs-link-color:#1C5B4A;
  --bs-link-hover-color:#B25F1C;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-accent-600);}
button{font:inherit;}
h1,h2,h3,h4{font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;color:var(--c-ink);margin:0;}
p{margin:0;}
ul{padding-left:1.15em;margin:0;}
.container-kk{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.page-gradient{height:3px;background:linear-gradient(90deg,var(--c-primary),var(--c-accent));}
.tabular{font-variant-numeric:tabular-nums;}

/* ---------- 顶部公告 ---------- */
.notice-bar{background:var(--c-primary-600);color:#fff;font-size:12px;line-height:1.4;}
.notice-bar .inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;}
.notice-bar span{color:rgba(255,255,255,.85);}
.notice-bar a{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.notice-bar a:hover{color:var(--c-accent-100);}
.notice-close{background:none;border:0;color:rgba(255,255,255,.75);cursor:pointer;padding:4px 6px;line-height:1;font-size:14px;}
.notice-close:hover{color:#fff;}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(246,243,236,.94);backdrop-filter:blur(8px);transition:box-shadow .2s ease;}
.brand-row{background:var(--c-surface);border-bottom:1px solid var(--c-border);}
.brand-row .inner{display:flex;align-items:center;gap:20px;min-height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:36px;height:36px;border-radius:9px;background:linear-gradient(135deg,var(--c-primary),var(--c-accent));display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;font-weight:700;font-family:"Noto Serif SC",serif;}
.brand-name{font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:.01em;font-family:"Noto Serif SC",serif;}
.brand-name:hover{color:var(--c-primary);}
.brand-sub{display:block;font-size:11px;color:var(--c-ink-3);line-height:1.2;font-family:"PingFang SC",sans-serif;font-weight:400;letter-spacing:.08em;}
.brand-text{display:flex;flex-direction:column;justify-content:center;}
.header-search{flex:1;max-width:360px;margin-left:auto;position:relative;}
.header-search input{width:100%;height:44px;border:1px solid var(--c-border);border-radius:var(--r-md);background:#fff;padding:0 44px 0 14px;font-size:14px;color:var(--c-ink);outline:none;transition:border-color .2s,box-shadow .2s;}
.header-search input::placeholder{color:var(--c-ink-3);}
.header-search input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(28,91,74,.12);}
.header-search .search-btn{position:absolute;right:6px;top:50%;transform:translateY(-50%);width:34px;height:34px;border:0;border-radius:8px;background:transparent;color:var(--c-ink-2);cursor:pointer;}
.header-search .search-btn:hover{color:var(--c-primary);background:var(--c-primary-100);}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.btn-kk{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:0 20px;border-radius:8px;font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:all .22s cubic-bezier(.2,.7,.3,1);}
.btn-kk-primary{background:var(--c-primary);color:#fff;}
.btn-kk-primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-kk-primary:active{transform:translateY(0);box-shadow:none;}
.btn-kk-ghost{border-color:var(--c-primary);color:var(--c-primary);background:transparent;}
.btn-kk-ghost:hover{background:rgba(28,91,74,.08);color:var(--c-primary-600);}
.btn-kk-accent{background:var(--c-accent);color:#fff;}
.btn-kk-accent:hover{background:var(--c-accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-kk:focus-visible,a:focus-visible,input:focus-visible,button:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-border);border-radius:8px;background:#fff;color:var(--c-ink-2);cursor:pointer;}
.menu-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* ---------- 频道行 ---------- */
.channel-row{border-bottom:1px solid var(--c-border);background:transparent;}
.channel-row .inner{display:flex;align-items:center;gap:8px;min-height:48px;}
.channel-nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap;}
.channel-nav a{position:relative;display:inline-flex;align-items:center;padding:0 14px;min-height:48px;font-size:15px;color:var(--c-ink-2);font-weight:500;}
.channel-nav a::after{content:"";position:absolute;left:14px;right:14px;bottom:8px;height:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;}
.channel-nav a:hover{color:var(--c-primary);}
.channel-nav a:hover::after{transform:scaleX(1);}
.channel-nav a.active{color:var(--c-ink);font-weight:600;}
.channel-nav a.active::after{transform:scaleX(1);}
.hot-words{margin-left:auto;display:flex;align-items:center;gap:8px;flex-shrink:0;}
.hot-words .label{font-size:12px;color:var(--c-ink-3);}
.tag-pill{display:inline-block;font-size:12px;line-height:1.4;padding:3px 10px;border-radius:var(--r-pill);background:var(--c-accent-100);color:var(--c-accent-600);font-weight:600;}
.tag-pill:hover{background:var(--c-accent);color:#fff;}
.site-header.is-compact .brand-row{display:none;}
.site-header.is-compact{box-shadow:var(--sh-2);}
.mobile-menu{display:none;background:var(--c-surface);border-bottom:1px solid var(--c-border);padding:8px 0 14px;}
.mobile-menu a{display:block;padding:12px 24px;font-size:15px;color:var(--c-ink-2);border-bottom:1px solid var(--c-border);}
.mobile-menu a.active{color:var(--c-primary);font-weight:600;}
.mobile-menu.open{display:block;}

/* ---------- Hero ---------- */
.hero{padding:64px 0 72px;background:var(--c-bg);}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;color:var(--c-primary);font-weight:600;margin-bottom:18px;text-transform:uppercase;}
.hero-eyebrow::before{content:"";width:32px;height:3px;background:var(--c-accent);border-radius:3px;}
.hero h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.01em;margin-bottom:18px;}
.hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-lead{font-size:17px;line-height:1.85;color:var(--c-ink-2);max-width:560px;}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 30px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:32px;padding-top:26px;border-top:1px solid var(--c-border);}
.hero-fact strong{display:block;font-size:26px;line-height:1.2;color:var(--c-primary);font-variant-numeric:tabular-nums;font-family:"Noto Serif SC",serif;}
.hero-fact span{font-size:13px;color:var(--c-ink-3);}
.hero-visual{position:relative;}
.hero-visual .frame{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-3);aspect-ratio:4/3;background:var(--c-primary-100);}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover;}
.hero-float{position:absolute;left:-24px;bottom:-24px;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);box-shadow:var(--sh-2);padding:16px 20px;min-width:200px;}
.hero-float b{display:block;font-size:24px;color:var(--c-accent-600);font-variant-numeric:tabular-nums;font-family:"Noto Serif SC",serif;}
.hero-float span{font-size:12px;color:var(--c-ink-3);}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--c-surface);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-title{font-size:28px;line-height:1.35;font-weight:700;position:relative;padding-top:16px;}
.section-title::before{content:"";position:absolute;top:0;left:0;width:32px;height:3px;background:var(--c-accent);border-radius:3px;}
.section-sub{margin-top:12px;font-size:15px;color:var(--c-ink-2);}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.link-more:hover{color:var(--c-accent-600);text-decoration:underline;text-underline-offset:4px;}

/* ---------- 砖石功能组 ---------- */
.masonry{display:grid;grid-template-columns:7fr 5fr;gap:24px;}
.card-kk{background:var(--c-surface);border:1px solid var(--c-border);border-radius:12px;box-shadow:var(--sh-1);transition:box-shadow .24s cubic-bezier(.2,.7,.3,1),border-color .24s,transform .24s;}
.card-kk:hover{box-shadow:var(--sh-2);border-color:rgba(28,91,74,.3);transform:translateY(-2px);}
.feature-main{display:flex;flex-direction:column;overflow:hidden;}
.feature-main .media{aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-100);}
.feature-main .media img{width:100%;height:100%;object-fit:cover;transition:transform .3s cubic-bezier(.2,.7,.3,1);}
.feature-main:hover .media img{transform:scale(1.03);}
.feature-main .body{padding:28px 30px 30px;}
.feature-main h3{font-size:22px;margin-bottom:12px;}
.feature-main p{color:var(--c-ink-2);font-size:15px;}
.feature-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.feature-side .card-kk{padding:26px 26px 24px;}
.feature-side i{font-size:20px;color:var(--c-primary);}
.feature-side h3{font-size:19px;margin:14px 0 10px;}
.feature-side p{font-size:14px;color:var(--c-ink-2);margin-bottom:14px;}

/* ---------- 场景交错 ---------- */
.scene{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center;padding:36px 0;border-bottom:1px solid var(--c-border);}
.scene:last-child{border-bottom:0;}
.scene.reverse{grid-template-columns:7fr 5fr;}
.scene.reverse .scene-media{order:2;}
.scene-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);aspect-ratio:4/3;background:var(--c-primary-100);}
.scene-media img{width:100%;height:100%;object-fit:cover;}
.scene-body h3{font-size:20px;margin-bottom:14px;}
.scene-body ul{list-style:none;padding:0;margin-bottom:18px;}
.scene-body li{position:relative;padding-left:22px;font-size:15px;color:var(--c-ink-2);margin-bottom:8px;}
.scene-body li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--c-accent);}

/* ---------- 案例深色区 ---------- */
.case-band{position:relative;background:#12281F;color:#fff;padding:88px 0;overflow:hidden;}
.case-band::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.28;}
.case-band::after{content:"";position:absolute;inset:0;background:rgba(18,40,31,.62);}
.case-band .container-kk{position:relative;z-index:2;}
.case-band h2{color:#fff;}
.case-band .section-sub{color:rgba(255,255,255,.78);}
.case-grid{display:grid;grid-template-columns:7fr 5fr;gap:32px;}
.case-lead{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-lg);padding:32px;}
.case-lead .industry{font-size:12px;letter-spacing:.12em;color:var(--c-accent-100);font-weight:600;}
.case-lead h3{color:#fff;font-size:22px;margin:12px 0 14px;}
.case-lead p{color:rgba(255,255,255,.8);font-size:15px;}
.case-stats{display:flex;gap:32px;margin-top:26px;padding-top:22px;border-top:1px solid rgba(255,255,255,.16);}
.case-stats b{display:block;font-size:26px;color:#fff;font-variant-numeric:tabular-nums;font-family:"Noto Serif SC",serif;line-height:1.2;}
.case-stats span{font-size:12px;color:rgba(255,255,255,.62);}
.case-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:2px;}
.case-list li a{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 4px;border-bottom:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.86);font-size:15px;}
.case-list li a:hover{color:var(--c-accent-100);}
.case-list time{font-size:12px;color:rgba(255,255,255,.5);flex-shrink:0;font-variant-numeric:tabular-nums;}

/* ---------- 方案价格 ---------- */
.bill-toggle{display:inline-flex;gap:4px;background:var(--c-primary-100);border-radius:var(--r-pill);padding:4px;margin-bottom:36px;}
.bill-toggle button{border:0;background:transparent;padding:8px 20px;border-radius:var(--r-pill);font-size:14px;font-weight:600;color:var(--c-primary);cursor:pointer;transition:all .2s;}
.bill-toggle button[aria-pressed="true"]{background:var(--c-primary);color:#fff;}
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.plan{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);padding:30px 28px 32px;box-shadow:var(--sh-1);transition:box-shadow .24s,transform .24s;}
.plan:hover{box-shadow:var(--sh-2);}
.plan.recommend{border-top:4px solid var(--c-accent);transform:translateY(-8px);box-shadow:var(--sh-3);}
.plan h3{font-size:19px;}
.plan .plan-desc{font-size:13px;color:var(--c-ink-3);margin:8px 0 20px;}
.plan .price{font-size:38px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;font-family:"Noto Serif SC",serif;line-height:1.1;}
.plan .price small{font-size:14px;color:var(--c-ink-3);font-weight:400;margin-left:6px;font-family:"PingFang SC",sans-serif;}
.plan ul{list-style:none;padding:0;margin:22px 0 26px;}
.plan li{position:relative;padding-left:24px;font-size:14px;color:var(--c-ink-2);margin-bottom:10px;}
.plan li::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:0;font-size:12px;color:var(--c-ok);}
.plan li.disabled{color:var(--c-ink-3);opacity:.6;}
.plan li.disabled::before{content:"\f00d";color:var(--c-ink-3);}
.plan .btn-kk{width:100%;}
.plan-badge{display:inline-block;font-size:12px;padding:3px 10px;border-radius:var(--r-pill);background:var(--c-accent);color:#fff;margin-left:8px;vertical-align:middle;font-family:"PingFang SC",sans-serif;font-weight:600;}

/* ---------- 最新信息 ---------- */
.news-lead{display:block;background:var(--c-surface);border:1px solid var(--c-border);border-radius:12px;overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .24s,transform .24s;}
.news-lead:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.news-lead-media{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-100);}
.news-lead-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s;}
.news-lead:hover .news-lead-media img{transform:scale(1.03);}
.news-lead .lead-body{padding:24px 26px 26px;}
.news-lead h3{font-size:20px;margin:12px 0 10px;color:var(--c-ink);}
.news-lead:hover h3{color:var(--c-primary);}
.news-lead p{font-size:14px;color:var(--c-ink-2);margin-bottom:14px;}
.news-lead time,.news-list time{font-size:12px;color:var(--c-ink-3);font-variant-numeric:tabular-nums;}
.news-list{list-style:none;padding:0;margin:0;}
.news-list li{border-bottom:1px solid var(--c-border);}
.news-list li:first-child{border-top:1px solid var(--c-border);}
.news-list li a{display:block;padding:18px 4px;transition:background .2s;}
.news-list li a:hover{background:rgba(228,239,234,.5);padding-left:12px;}
.news-list h3{font-size:16px;line-height:1.5;margin:8px 0 6px;color:var(--c-ink);}
.news-list li a:hover h3{color:var(--c-primary);}
.news-list p{font-size:13px;color:var(--c-ink-2);margin-bottom:6px;}
.news-list-top{display:flex;align-items:center;gap:12px;}
.news-empty{background:var(--c-surface);border:1px dashed var(--c-line-strong);border-radius:var(--r-lg);padding:48px 24px;text-align:center;color:var(--c-ink-2);}
.news-empty i{font-size:28px;color:var(--c-line-strong);display:block;margin-bottom:12px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{background:var(--c-surface);border:1px solid var(--c-border);border-radius:12px !important;margin-bottom:12px;overflow:hidden;}
.accordion-button{background:var(--c-surface);color:var(--c-ink);font-size:16px;font-weight:600;font-family:"Noto Serif SC",serif;padding:20px 52px 20px 22px;box-shadow:none !important;border-radius:12px !important;}
.accordion-button:not(.collapsed){color:var(--c-primary);background:var(--c-primary-100);}
.accordion-button::after{display:none;}
.accordion-button .faq-mark{position:absolute;right:20px;top:50%;transform:translateY(-50%);width:26px;height:26px;border-radius:50%;border:1.5px solid var(--c-line-strong);display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--c-ink-2);transition:all .22s;font-weight:400;}
.accordion-button:not(.collapsed) .faq-mark{background:var(--c-accent);border-color:var(--c-accent);color:#fff;transform:translateY(-50%) rotate(180deg);}
.accordion-body{padding:4px 22px 24px;font-size:15px;line-height:1.85;color:var(--c-ink-2);border-left:3px solid var(--c-accent);margin-left:22px;padding-left:18px;}

/* ---------- 结尾 CTA ---------- */
.cta-band{background:var(--c-primary-100);border-radius:var(--r-lg);padding:56px 48px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-band h2{font-size:26px;margin-bottom:10px;}
.cta-band p{font-size:15px;color:var(--c-ink-2);max-width:620px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#12281F;color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:4fr 3fr 3fr 2fr;gap:40px;padding-bottom:44px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-family:"Noto Serif SC",serif;letter-spacing:.02em;}
.site-footer p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.66);}
.footer-links{list-style:none;padding:0;}
.footer-links li{font-size:14px;line-height:2.2;}
.footer-links a{color:rgba(255,255,255,.76);}
.footer-links a:hover{color:var(--c-accent);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:linear-gradient(135deg,var(--c-accent),#E9A76A);}
.footer-brand .brand-name{color:#fff;}
.qr-box{width:96px;height:96px;border-radius:var(--r-md);background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.6);font-size:26px;margin-bottom:12px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--c-accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .brand-row .inner{gap:14px;}
  .header-search{max-width:260px;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .hero{padding:48px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero h1{font-size:32px;}
  .hero-float{position:static;margin-top:16px;left:auto;bottom:auto;}
  .masonry{grid-template-columns:1fr;}
  .scene,.scene.reverse{grid-template-columns:1fr;gap:24px;}
  .scene.reverse .scene-media{order:0;}
  .case-grid{grid-template-columns:1fr;}
  .plan-grid{grid-template-columns:1fr;}
  .plan.recommend{transform:none;order:-1;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .header-search{display:none;}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .channel-row .inner{min-height:44px;overflow-x:auto;scrollbar-width:none;}
  .channel-row .inner::-webkit-scrollbar{display:none;}
  .channel-nav{flex-wrap:nowrap;scroll-snap-type:x mandatory;}
  .channel-nav a{white-space:nowrap;scroll-snap-align:start;min-height:44px;padding:0 12px;}
  .hot-words{display:none;}
  .site-header.is-compact .brand-row{display:block;}
}
@media (max-width:767.98px){
  .container-kk{padding:0 18px;}
  .section{padding:44px 0;}
  .hero h1{font-size:28px;line-height:1.3;}
  .section-title{font-size:22px;}
  .hero-facts{gap:20px;}
  .hero-fact strong{font-size:22px;}
  .cta-band{padding:32px 22px;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .brand-summary{display:none;}
  .header-actions .btn-kk-ghost{display:none;}
  .feature-main .body{padding:22px;}
  .case-lead{padding:24px;}
  .case-stats{gap:20px;flex-wrap:wrap;}
  .accordion-button{font-size:15px;padding:16px 48px 16px 18px;}
  .accordion-body{margin-left:16px;padding-left:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --c-ink:#161A17;--c-ink-2:#4A5450;--c-ink-3:#7C857F;
  --c-primary:#1C5B4A;--c-primary-600:#164A3C;--c-primary-100:#E4EFEA;
  --c-accent:#D0762C;--c-accent-600:#B25F1C;--c-accent-100:#FBEDE0;
  --c-bg:#F6F3EC;--c-surface:#FFFFFF;--c-border:#E2DCD0;--c-line-strong:#C9C1B2;
  --c-ok:#2E7D5B;--c-warn:#B23A2A;
  --r-sm:6px;--r-md:10px;--r-lg:16px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(22,26,23,.04),0 1px 3px rgba(22,26,23,.06);
  --sh-2:0 6px 20px -8px rgba(22,26,23,.18);
  --sh-3:0 14px 34px -14px rgba(28,91,74,.28);
  --bs-primary:#1C5B4A;--bs-body-bg:#F6F3EC;--bs-body-color:#161A17;
  --bs-border-radius:10px;--bs-link-color:#1C5B4A;--bs-link-hover-color:#D0762C;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-gutter-x:24px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.85;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;text-underline-offset:3px;}
a:hover{color:var(--c-accent);}
ul,ol{padding-left:1.25em;}
button,input{font-family:inherit;}
h1,h2,h3,h4,.serif{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  color:var(--c-ink);letter-spacing:-.01em;
}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.topline{height:3px;background:linear-gradient(90deg,var(--c-primary),var(--c-accent));}
.container-kk{max-width:1200px;margin:0 auto;padding:0 24px;}
.eyebrow{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--c-accent-600);font-weight:600;}

/* 公告条 */
.notice-bar{background:var(--c-primary-100);border-bottom:1px solid var(--c-border);font-size:12px;color:var(--c-ink-2);}
.notice-bar .container-kk{display:flex;align-items:center;gap:16px;min-height:36px;}
.notice-bar .notice-text{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.notice-bar .notice-text i{color:var(--c-accent-600);margin-right:6px;}
.notice-bar a{font-weight:600;}
.notice-close{background:none;border:0;color:var(--c-ink-3);cursor:pointer;font-size:14px;line-height:1;padding:6px;}
.notice-close:hover{color:var(--c-warn);}

/* 头部 */
.site-header{position:sticky;top:0;z-index:1030;background:var(--c-surface);border-bottom:1px solid var(--c-border);transition:box-shadow .2s ease,background .2s ease;}
.site-header.is-stuck{box-shadow:var(--sh-2);background:rgba(246,243,236,.94);backdrop-filter:saturate(140%) blur(6px);}
.brand-bar{display:flex;align-items:center;gap:24px;min-height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;font-weight:700;font-size:18px;font-family:Inter,system-ui,sans-serif;
  box-shadow:var(--sh-1);
}
.brand-name{font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;white-space:nowrap;}
.brand-name:hover{color:var(--c-primary);}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{position:relative;width:320px;}
.search-box i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--c-ink-3);font-size:14px;}
.search-box input{
  width:100%;height:44px;border:1px solid var(--c-border);border-radius:8px;background:var(--c-bg);
  padding:0 14px 0 38px;font-size:14px;color:var(--c-ink);transition:border-color .2s,box-shadow .2s;
}
.search-box input::placeholder{color:var(--c-ink-3);}
.search-box input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(28,91,74,.12);background:#fff;}
.btn-kk{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:8px;font-size:15px;font-weight:600;
  border:1.5px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s,border-color .2s,color .2s;
}
.btn-kk:active{transform:none;}
.btn-primary-kk{background:var(--c-primary);color:#fff;}
.btn-primary-kk:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost-kk{border-color:var(--c-primary);color:var(--c-primary);background:transparent;}
.btn-ghost-kk:hover{background:rgba(28,91,74,.08);color:var(--c-primary-600);transform:translateY(-1px);}
.btn-sm-kk{min-height:38px;padding:0 16px;font-size:14px;}
.mobile-search-toggle{display:none;background:none;border:1px solid var(--c-border);border-radius:8px;width:44px;height:44px;color:var(--c-ink-2);}

/* 频道行 */
.channel-nav-wrap{border-top:1px solid var(--c-border);}
.channel-nav{display:flex;align-items:center;gap:28px;min-height:48px;overflow-x:auto;scrollbar-width:none;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel-nav a{
  position:relative;flex-shrink:0;color:var(--c-ink-2);font-size:15px;font-weight:500;
  padding:14px 0;white-space:nowrap;transition:color .2s;
}
.channel-nav a::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .2s;}
.channel-nav a:hover{color:var(--c-primary);}
.channel-nav a:hover::after{transform:scaleX(1);}
.channel-nav a.active{color:var(--c-primary);font-weight:600;}
.channel-nav a.active::after{transform:scaleX(1);}
.hot-words{margin-left:auto;display:flex;gap:8px;flex-shrink:0;}
.hot-words .pill{font-size:12px;padding:5px 12px;border-radius:var(--r-pill);background:var(--c-accent-100);color:var(--c-accent-600);border:1px solid transparent;}
.hot-words .pill:hover{background:var(--c-accent-600);color:#fff;}

/* 面包屑 */
.crumb-bar{padding:24px 0 0;}
.crumb{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--c-ink-3);flex-wrap:nowrap;overflow:hidden;}
.crumb a{color:var(--c-ink-3);}
.crumb a:hover{color:var(--c-accent);}
.crumb .sep{color:var(--c-line-strong);}
.crumb .current{color:var(--c-ink-2);max-width:360px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* 布局 */
.layout{padding:24px 0 88px;}
.layout-grid{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;align-items:start;}
.article-shell{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:40px;}

/* 文章头 */
.badge-cat{
  display:inline-block;font-size:12px;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-accent-100);color:var(--c-accent-600);font-weight:600;
}
.article-title{font-size:40px;line-height:1.25;font-weight:700;margin:16px 0 0;}
.meta-row{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:18px;padding-bottom:20px;border-bottom:1px solid var(--c-border);font-size:14px;color:var(--c-ink-2);}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--c-line-strong);}
.font-switch{margin-left:auto;display:flex;align-items:center;gap:6px;}
.font-switch span{font-size:13px;color:var(--c-ink-3);}
.font-switch button{
  min-width:36px;height:32px;border:1px solid var(--c-border);background:#fff;border-radius:var(--r-sm);
  color:var(--c-ink-2);font-size:13px;cursor:pointer;transition:all .2s;
}
.font-switch button:hover{border-color:var(--c-primary);color:var(--c-primary);}
.font-switch button[aria-pressed="true"]{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}

/* 正文 */
.article-body{margin-top:28px;font-size:16px;line-height:1.9;color:#232824;}
.article-body.fs-sm{font-size:15px;}
.article-body.fs-lg{font-size:18px;line-height:1.9;}
.article-body p{margin:0 0 20px;}
.article-body h2{font-size:28px;line-height:1.35;font-weight:700;margin:40px 0 18px;padding-bottom:10px;position:relative;}
.article-body h2::after{content:"";position:absolute;left:0;bottom:0;width:32px;height:3px;background:var(--c-accent);border-radius:2px;}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;margin:30px 0 12px;}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:1.5em;}
.article-body li{margin-bottom:8px;}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--c-primary);
  background:var(--c-primary-100);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--c-ink-2);
}
.article-body img{border-radius:12px;margin:20px 0;}
.article-body figure{margin:24px 0;}
.article-body figcaption,.article-body .caption{font-size:13px;color:var(--c-ink-3);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px;display:block;overflow-x:auto;border:1px solid var(--c-border);border-radius:var(--r-md);}
.article-body th,.article-body td{border-bottom:1px solid var(--c-border);padding:12px 14px;text-align:left;white-space:nowrap;}
.article-body th{background:var(--c-primary-100);font-weight:600;color:var(--c-primary-600);}
.article-body pre{background:#161A17;color:#E8EDE9;padding:18px;border-radius:var(--r-md);overflow-x:auto;font-size:13.5px;line-height:1.7;}
.article-body code{background:var(--c-bg);border:1px solid var(--c-border);padding:2px 6px;border-radius:var(--r-sm);font-size:14px;}
.article-body pre code{background:none;border:0;padding:0;color:inherit;}
.article-body a{text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--c-accent);}
.article-body hr{border:0;border-top:1px solid var(--c-border);margin:32px 0;}

/* 空态 */
.empty-state{text-align:center;padding:56px 24px;border:1px dashed var(--c-line-strong);border-radius:var(--r-lg);background:var(--c-bg);}
.empty-state i{font-size:34px;color:var(--c-line-strong);}
.empty-state h3{margin:16px 0 8px;font-size:20px;}
.empty-state p{color:var(--c-ink-2);margin-bottom:20px;}

/* 文末 */
.tail-block{margin-top:48px;padding-top:28px;border-top:1px solid var(--c-border);}
.tail-block h2{font-size:20px;margin:0 0 16px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag-row a{
  font-size:12px;padding:6px 14px;border-radius:var(--r-pill);border:1px solid var(--c-border);
  background:var(--c-bg);color:var(--c-ink-2);transition:all .2s;
}
.tag-row a:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px;}
.post-nav a{
  display:block;padding:18px;border:1px solid var(--c-border);border-radius:var(--r-md);
  background:var(--c-bg);transition:all .24s cubic-bezier(.2,.7,.3,1);
}
.post-nav a:hover{border-color:rgba(28,91,74,.3);box-shadow:var(--sh-2);background:#fff;transform:translateY(-2px);}
.post-nav .label{font-size:12px;color:var(--c-ink-3);letter-spacing:.08em;}
.post-nav .t{display:block;margin-top:8px;font-size:15px;font-weight:600;color:var(--c-ink);}
.post-nav a:hover .t{color:var(--c-primary);}
.related-list{display:grid;gap:14px;margin-top:16px;}
.related-item{display:flex;gap:16px;padding:14px;border:1px solid var(--c-border);border-radius:var(--r-md);background:#fff;transition:all .24s cubic-bezier(.2,.7,.3,1);}
.related-item:hover{box-shadow:var(--sh-2);border-color:rgba(28,91,74,.3);transform:translateY(-2px);}
.related-item .thumb{width:132px;aspect-ratio:16/9;flex-shrink:0;border-radius:8px;overflow:hidden;background:var(--c-primary-100);}
.related-item .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s;}
.related-item:hover .thumb img{transform:scale(1.03);}
.related-item .t{font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.5;display:block;margin-bottom:6px;}
.related-item:hover .t{color:var(--c-primary);}
.related-item .d{font-size:13px;color:var(--c-ink-3);}
.back-link{display:inline-flex;align-items:center;gap:8px;margin-top:24px;font-size:14px;font-weight:600;}

/* 侧栏 */
.sidebar{position:sticky;top:120px;display:grid;gap:24px;}
.side-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:24px;}
.side-card h3{font-size:17px;margin:0 0 16px;padding-bottom:12px;border-bottom:1px solid var(--c-border);position:relative;}
.side-card h3::after{content:"";position:absolute;left:0;bottom:-1px;width:32px;height:3px;background:var(--c-accent);border-radius:2px;}
.rank-list{list-style:none;margin:0;padding:0;counter-reset:rank;}
.rank-list li{counter-increment:rank;}
.rank-list a{display:flex;gap:14px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--c-border);color:var(--c-ink);font-size:14.5px;line-height:1.6;}
.rank-list li:last-child a{border-bottom:0;}
.rank-list a:hover{color:var(--c-primary);background:rgba(228,239,234,.4);}
.rank-list a::before{
  content:"0" counter(rank);
  font-family:"Noto Serif SC",serif;font-size:16px;color:var(--c-accent);font-weight:700;flex-shrink:0;line-height:1.5;
}
.side-nav{list-style:none;margin:0;padding:0;}
.side-nav a{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--c-border);color:var(--c-ink-2);font-size:14.5px;}
.side-nav li:last-child a{border-bottom:0;}
.side-nav a:hover{color:var(--c-primary);padding-left:4px;transition:padding .2s;}
.side-nav a i{font-size:12px;color:var(--c-line-strong);}

/* 页脚 */
.site-footer{background:var(--c-primary);color:rgba(255,255,255,.86);padding:64px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff;}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:700;}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin:0;}
.site-footer h4{font-size:15px;color:#fff;margin:0 0 16px;font-family:"PingFang SC","Microsoft YaHei",sans-serif;}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{line-height:2.2;}
.footer-links a{color:rgba(255,255,255,.78);font-size:14px;}
.footer-links a:hover{color:var(--c-accent-100);}
.qr-box{
  width:96px;height:96px;border-radius:var(--r-md);background:rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:center;font-size:38px;color:rgba(255,255,255,.6);margin-bottom:12px;
}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;font-size:13px;color:rgba(255,255,255,.66);
}
.footer-bottom a{color:rgba(255,255,255,.8);}
.footer-bottom a:hover{color:var(--c-accent-100);}

/* 响应式 */
@media (max-width:1399px){ .container-kk{max-width:1140px;} }
@media (max-width:1199px){
  .layout-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .sidebar{position:static;grid-template-columns:1fr 1fr;}
  .search-box{width:220px;}
  .hot-words{display:none;}
}
@media (max-width:991px){
  .site-header .channel-nav-wrap{border-top:1px solid var(--c-border);}
  .article-shell{padding:28px;}
  .article-title{font-size:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container-kk{padding:0 16px;}
  .brand-bar{min-height:56px;gap:12px;}
  .brand-name{font-size:16px;}
  .search-box{display:none;}
  .search-box.is-open{display:block;position:absolute;left:16px;right:16px;top:60px;width:auto;z-index:5;}
  .mobile-search-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-tools{gap:8px;}
  .btn-kk{padding:0 14px;font-size:14px;}
  .channel-nav{gap:12px;min-height:44px;}
  .channel-nav a{padding:8px 14px;border:1px solid var(--c-border);border-radius:var(--r-pill);background:#fff;font-size:14px;scroll-snap-align:start;}
  .channel-nav a::after{display:none;}
  .channel-nav a.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
  .crumb-bar{padding:16px 0 0;}
  .layout{padding:16px 0 56px;}
  .article-shell{padding:20px;border-radius:12px;}
  .article-title{font-size:28px;line-height:1.3;}
  .meta-row{gap:12px;font-size:13px;}
  .font-switch{margin-left:0;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18px;}
  .post-nav{grid-template-columns:1fr;}
  .related-item .thumb{width:104px;}
  .sidebar{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
  .related-item:hover,.post-nav a:hover,.btn-kk:hover{transform:none!important;}
}

/* roulang page: category1 */
:root{
  --c-ink:#161A17;
  --c-ink-2:#4A5450;
  --c-ink-3:#7C857F;
  --c-primary:#1C5B4A;
  --c-primary-600:#164A3C;
  --c-primary-100:#E4EFEA;
  --c-accent:#D0762C;
  --c-accent-600:#B25F1C;
  --c-accent-100:#FBEDE0;
  --c-bg:#F6F3EC;
  --c-surface:#FFFFFF;
  --c-border:#E2DCD0;
  --c-line-strong:#C9C1B2;
  --c-ok:#2E7D5B;
  --c-warn:#B23A2A;
  --r-sm:6px; --r-md:10px; --r-lg:16px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,26,23,.04), 0 1px 3px rgba(22,26,23,.06);
  --sh-2:0 6px 20px -8px rgba(22,26,23,.18);
  --sh-3:0 14px 34px -14px rgba(28,91,74,.28);
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --bs-primary:#1C5B4A;
  --bs-primary-rgb:28,91,74;
  --bs-body-bg:#F6F3EC;
  --bs-body-color:#161A17;
  --bs-border-color:#E2DCD0;
  --bs-border-radius:10px;
  --bs-link-color:#1C5B4A;
  --bs-link-hover-color:#B25F1C;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);
  font-family:var(--sans);font-size:16px;line-height:1.85;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-accent-600);}
h1,h2,h3,h4{font-family:var(--serif);color:var(--c-ink);margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}

.container-kk{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.top-gradient{height:3px;background:linear-gradient(90deg,var(--c-primary),var(--c-accent));}

/* ============ 顶部公告条 ============ */
.top-strip{background:var(--c-primary-600);color:#fff;font-size:12px;line-height:1.4;}
.top-strip-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:34px;}
.top-note{display:inline-flex;align-items:center;gap:8px;color:rgba(255,255,255,.9);}
.top-note i{color:var(--c-accent-100);}
.top-actions{display:flex;align-items:center;gap:14px;}
.top-actions a{color:#fff;font-size:12px;border-bottom:1px solid rgba(255,255,255,.4);padding-bottom:1px;}
.top-actions a:hover{color:var(--c-accent-100);}
.top-close{background:none;border:0;color:rgba(255,255,255,.75);cursor:pointer;font-size:13px;line-height:1;padding:4px;min-width:24px;}
.top-close:hover{color:#fff;}
.top-strip.is-hidden{display:none;}

/* ============ 头部 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:var(--c-surface);border-bottom:1px solid var(--c-border);transition:box-shadow .2s ease;}
.site-header.is-stuck{box-shadow:var(--sh-2);}
.brand-row{background:var(--c-surface);}
.brand-row-inner{display:flex;align-items:center;gap:20px;min-height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-600));
  color:#fff;font-family:var(--serif);font-size:17px;font-weight:700;letter-spacing:.02em;
}
.brand-name{font-family:var(--serif);font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;}
.brand:hover .brand-name{color:var(--c-primary);}
.search-box{position:relative;display:flex;align-items:center;width:320px;margin-left:auto;}
.search-box i{position:absolute;left:14px;color:var(--c-ink-3);font-size:14px;pointer-events:none;}
.search-box input{
  width:100%;height:44px;border-radius:8px;border:1px solid var(--c-border);
  background:var(--c-bg);padding:0 88px 0 38px;font-size:14px;color:var(--c-ink);transition:.2s;
}
.search-box input::placeholder{color:var(--c-ink-3);}
.search-box input:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(28,91,74,.12);}
.search-box button{
  position:absolute;right:5px;height:34px;padding:0 16px;border:0;border-radius:6px;
  background:var(--c-primary);color:#fff;font-size:13px;font-weight:600;cursor:pointer;transition:.2s;
}
.search-box button:hover{background:var(--c-primary-600);}
.brand-actions{display:flex;align-items:center;gap:10px;}
.btn-kk{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:8px;font-size:15px;font-weight:600;
  cursor:pointer;border:1.5px solid transparent;transition:all .2s cubic-bezier(.2,.7,.3,1);white-space:nowrap;
}
.btn-primary-kk{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary-kk:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary-kk:active{transform:translateY(0);}
.btn-outline-kk{border-color:var(--c-primary);color:var(--c-primary);background:transparent;}
.btn-outline-kk:hover{background:rgba(28,91,74,.08);color:var(--c-primary-600);}
.btn-ghost-kk{border-color:rgba(255,255,255,.6);color:#fff;background:transparent;}
.btn-ghost-kk:hover{background:rgba(255,255,255,.14);color:#fff;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-border);border-radius:8px;
  background:#fff;color:var(--c-ink);cursor:pointer;font-size:16px;
}
.mobile-search-btn{display:none;width:44px;height:44px;border:1px solid var(--c-border);border-radius:8px;background:#fff;color:var(--c-ink);cursor:pointer;}
.mobile-search-panel{display:none;padding:0 24px 16px;}
.mobile-search-panel.is-open{display:block;}
.mobile-search-panel .search-box{width:100%;margin-left:0;}

/* 频道行 */
.channel-bar{background:rgba(246,243,236,.92);border-top:1px solid var(--c-border);backdrop-filter:blur(4px);}
.channel-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:48px;}
.channel-nav{display:flex;align-items:center;gap:28px;}
.channel-nav a{
  position:relative;font-size:15px;color:var(--c-ink-2);font-weight:500;padding:12px 0;min-height:44px;display:inline-flex;align-items:center;
}
.channel-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;background:var(--c-accent);
  transform:scaleX(0);transition:transform .2s ease;
}
.channel-nav a:hover{color:var(--c-primary);}
.channel-nav a:hover::after{transform:scaleX(1);}
.channel-nav a.active{color:var(--c-primary);font-weight:600;}
.channel-nav a.active::after{transform:scaleX(1);}
.hot-words{display:flex;align-items:center;gap:8px;}
.hot-words .hot-label{font-size:12px;color:var(--c-ink-3);white-space:nowrap;}
.pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-accent-100);color:var(--c-accent-600);font-size:12px;line-height:1.4;
  transition:.2s ease;white-space:nowrap;
}
.pill:hover{background:var(--c-accent-600);color:#fff;}

/* ============ Hero ============ */
.page-hero{position:relative;overflow:hidden;background:var(--c-primary-600);}
.page-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  filter:saturate(.9);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(22,74,60,.92) 0%,rgba(28,91,74,.78) 55%,rgba(28,91,74,.62) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:64px 24px 68px;max-width:1200px;margin:0 auto;}
.crumb{display:flex;align-items:center;gap:8px;font-size:12px;color:rgba(255,255,255,.78);margin-bottom:20px;}
.crumb a{color:rgba(255,255,255,.88);}
.crumb a:hover{color:var(--c-accent-100);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(208,118,44,.22);border:1px solid rgba(208,118,44,.5);color:#F6DCC4;
  font-size:12px;margin-bottom:18px;
}
.page-hero h1{
  color:#fff;font-size:40px;line-height:1.25;max-width:780px;margin-bottom:16px;
}
.hero-sub{color:rgba(255,255,255,.86);font-size:17px;max-width:620px;line-height:1.7;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 布局 ============ */
.block{padding:88px 0;}
.block.is-tight{padding-top:56px;}
.layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:48px;align-items:start;}
.side-rail{position:sticky;top:130px;display:flex;flex-direction:column;gap:24px;}
.rail-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:20px;}
.rail-title{font-family:var(--serif);font-size:15px;font-weight:700;color:var(--c-ink);margin:0 0 14px;padding-bottom:12px;border-bottom:1px solid var(--c-border);}
.rail-nav{display:flex;flex-direction:column;}
.rail-nav a{
  position:relative;font-size:14px;color:var(--c-ink-2);padding:10px 0 10px 14px;border-left:2px solid var(--c-border);line-height:1.5;
}
.rail-nav a:hover{color:var(--c-primary);border-left-color:var(--c-accent);background:rgba(28,91,74,.05);}
.rail-nav a.active{color:var(--c-primary);font-weight:600;border-left-color:var(--c-accent);}
.rail-note{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);}
.rail-note img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--c-primary-100);}
.rail-note div{padding:16px 18px 20px;}
.rail-note p{font-size:13px;line-height:1.7;color:var(--c-ink-2);margin:0 0 10px;}
.rail-note a{font-size:13px;font-weight:600;border-bottom:1px solid currentColor;padding-bottom:1px;}

/* 区块标题 */
.sec-head{margin-bottom:28px;}
.sec-head h2{font-size:28px;line-height:1.35;display:inline-block;position:relative;padding-bottom:14px;}
.sec-head h2::after{content:"";position:absolute;left:0;bottom:0;width:32px;height:3px;background:var(--c-accent);border-radius:2px;}
.sec-head p{margin:12px 0 0;font-size:15px;color:var(--c-ink-2);max-width:660px;}
.sub-block{margin-bottom:72px;}
.sub-block:last-child{margin-bottom:0;}

/* 导语 */
.lead-text{font-size:16px;color:var(--c-ink-2);line-height:2;margin-bottom:32px;}
.lead-text strong{color:var(--c-ink);font-weight:600;}
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;
  border:1px solid var(--c-border);border-radius:var(--r-md);background:var(--c-surface);overflow:hidden;box-shadow:var(--sh-1);
}
.metric{padding:22px 20px;border-right:1px solid var(--c-border);}
.metric:last-child{border-right:0;}
.metric-num{font-family:var(--serif);font-size:30px;line-height:1.1;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;}
.metric-num span{font-size:14px;font-family:var(--sans);color:var(--c-ink-3);margin-left:4px;font-weight:400;}
.metric-label{font-size:13px;color:var(--c-ink-2);margin-top:8px;line-height:1.6;}

/* 入口卡片（两列） */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.entry-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:12px;overflow:hidden;
  box-shadow:var(--sh-1);transition:all .24s cubic-bezier(.2,.7,.3,1);display:flex;flex-direction:column;
}
.entry-card:hover{box-shadow:var(--sh-2);border-color:rgba(28,91,74,.3);transform:translateY(-2px);}
.entry-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-100);}
.entry-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.entry-card:hover .entry-media img{transform:scale(1.03);}
.entry-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.badge-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--c-accent-100);color:var(--c-accent-600);font-size:12px;margin-bottom:12px;align-self:flex-start;
}
.entry-body h3{font-size:20px;line-height:1.5;margin-bottom:10px;transition:color .2s ease;}
.entry-card:hover .entry-body h3{color:var(--c-primary);}
.entry-body p{font-size:14px;color:var(--c-ink-2);line-height:1.8;margin:0 0 16px;}
.entry-meta{font-size:12px;color:var(--c-ink-3);margin-bottom:14px;letter-spacing:.02em;}
.entry-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.entry-link i{font-size:12px;transition:transform .2s ease;}
.entry-card:hover .entry-link i{transform:translateX(3px);}

/* 时间轴 */
.timeline{border-top:1px solid var(--c-border);}
.tl-item{
  display:grid;grid-template-columns:88px minmax(0,1fr);gap:28px;
  padding:28px 0;border-bottom:1px solid var(--c-border);align-items:start;
}
.tl-num{font-family:var(--serif);font-size:30px;line-height:1;color:var(--c-accent);font-weight:700;font-variant-numeric:tabular-nums;padding-top:2px;}
.tl-body h3{font-size:20px;line-height:1.5;margin-bottom:10px;}
.tl-body p{font-size:14px;color:var(--c-ink-2);margin:0 0 12px;line-height:1.85;}
.tl-points{display:flex;flex-wrap:wrap;gap:10px;}
.tl-points li{
  font-size:13px;color:var(--c-primary);background:var(--c-primary-100);
  border-radius:var(--r-sm);padding:5px 12px;line-height:1.5;
}

/* 深色核验区 */
.verify-band{background:var(--c-primary);border-radius:var(--r-lg);padding:48px 44px;color:#fff;box-shadow:var(--sh-3);}
.verify-band h2{color:#fff;font-size:28px;line-height:1.35;margin-bottom:14px;}
.verify-band h2::after{content:"";display:block;width:32px;height:3px;background:var(--c-accent);border-radius:2px;margin-top:14px;}
.verify-lead{color:rgba(255,255,255,.84);font-size:15px;max-width:640px;margin:16px 0 32px;}
.verify-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 32px;}
.verify-item{display:flex;gap:14px;padding:18px 0;border-top:1px solid rgba(255,255,255,.16);}
.verify-item i{color:var(--c-accent);font-size:16px;margin-top:5px;}
.verify-item h3{color:#fff;font-size:16px;line-height:1.6;margin-bottom:6px;font-family:var(--sans);font-weight:600;}
.verify-item p{color:rgba(255,255,255,.78);font-size:14px;line-height:1.8;margin:0;}

/* FAQ */
.accordion{--bs-accordion-border-color:var(--c-border);--bs-accordion-border-radius:10px;--bs-accordion-inner-border-radius:8px;
  --bs-accordion-btn-padding-x:22px;--bs-accordion-btn-padding-y:20px;--bs-accordion-body-padding-x:22px;--bs-accordion-body-padding-y:20px;
  --bs-accordion-btn-color:var(--c-ink);--bs-accordion-color:var(--c-ink-2);--bs-accordion-bg:var(--c-surface);
  --bs-accordion-active-bg:var(--c-surface);--bs-accordion-active-color:var(--c-primary);
  --bs-accordion-btn-focus-box-shadow:0 0 0 3px rgba(208,118,44,.22);--bs-accordion-btn-focus-border-color:var(--c-accent);}
.accordion-item{border:1px solid var(--c-border);margin-bottom:12px;border-radius:10px;overflow:hidden;box-shadow:var(--sh-1);}
.accordion-button{font-size:16px;font-weight:600;line-height:1.6;font-family:var(--sans);}
.accordion-button:not(.collapsed){box-shadow:inset 3px 0 0 var(--c-accent);}
.accordion-button::after{
  content:"+";background-image:none !important;width:24px;height:24px;display:flex;align-items:center;justify-content:center;
  font-size:20px;line-height:1;color:var(--c-accent-600);font-weight:400;transition:color .2s ease;
}
.accordion-button:not(.collapsed)::after{content:"−";transform:none;}
.accordion-body{font-size:15px;line-height:1.85;color:var(--c-ink-2);}

/* CTA */
.cta-band{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:56px 48px;box-shadow:var(--sh-1);display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band h2{font-size:28px;line-height:1.35;margin-bottom:12px;}
.cta-band h2::after{content:"";display:block;width:32px;height:3px;background:var(--c-accent);border-radius:2px;margin-top:14px;}
.cta-band p{font-size:15px;color:var(--c-ink-2);margin:16px 0 0;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-primary-600);color:rgba(255,255,255,.82);margin-top:88px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:linear-gradient(135deg,var(--c-accent),var(--c-accent-600));}
.footer-brand .brand-name{color:#fff;font-family:var(--serif);font-size:17px;font-weight:700;}
.site-footer h4{color:#fff;font-size:15px;font-family:var(--sans);font-weight:600;margin-bottom:16px;}
.site-footer p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.7);margin:0;}
.footer-links{display:flex;flex-direction:column;}
.footer-links a{color:rgba(255,255,255,.78);font-size:14px;line-height:2.2;transition:color .2s ease;}
.footer-links a:hover{color:var(--c-accent-100);}
.qr-box{
  width:88px;height:88px;border-radius:10px;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.7);font-size:32px;margin-bottom:14px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.62);
}
.footer-bottom a{color:rgba(255,255,255,.82);}
.footer-bottom a:hover{color:var(--c-accent-100);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .layout{grid-template-columns:220px minmax(0,1fr);gap:36px;}
  .search-box{width:260px;}
  .page-hero h1{font-size:34px;}
}
@media (max-width:991.98px){
  .search-box{display:none;}
  .mobile-search-btn{display:inline-flex;align-items:center;justify-content:center;}
  .layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .side-rail{position:static;margin-bottom:40px;}
  .rail-nav{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .rail-nav a{border-left:0;border:1px solid var(--c-border);border-radius:var(--r-pill);padding:8px 14px;font-size:13px;}
  .rail-nav a.active{border-color:var(--c-accent);background:var(--c-accent-100);}
  .rail-note{display:none;}
  .block{padding:64px 0;}
  .sub-block{margin-bottom:56px;}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metric:nth-child(2){border-right:0;}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--c-border);}
  .verify-band{padding:36px 28px;}
  .verify-list{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .page-hero-inner{padding:48px 24px 52px;}
}
@media (max-width:767.98px){
  .container-kk{padding:0 18px;}
  .brand-name{font-size:16px;}
  .brand-actions .btn-outline-kk{display:none;}
  .channel-bar-inner{justify-content:flex-start;gap:12px;overflow-x:auto;padding-bottom:4px;scroll-snap-type:x mandatory;}
  .channel-nav{gap:20px;}
  .channel-nav a{scroll-snap-align:start;white-space:nowrap;font-size:14px;}
  .hot-words{display:none;}
  .page-hero h1{font-size:28px;line-height:1.3;}
  .hero-sub{font-size:15px;}
  .hero-actions .btn-kk{flex:1 1 auto;}
  .block{padding:44px 0;}
  .sub-block{margin-bottom:44px;}
  .sec-head h2{font-size:22px;}
  .card-grid{grid-template-columns:minmax(0,1fr);gap:16px;}
  .metrics{grid-template-columns:minmax(0,1fr);}
  .metric{border-right:0;border-bottom:1px solid var(--c-border);}
  .metric:last-child{border-bottom:0;}
  .tl-item{grid-template-columns:56px minmax(0,1fr);gap:16px;padding:22px 0;}
  .tl-num{font-size:24px;}
  .verify-band{padding:28px 20px;border-radius:14px;}
  .verify-band h2{font-size:22px;}
  .cta-band{padding:32px 22px;border-radius:14px;}
  .cta-band h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-kk{flex:1 1 auto;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .site-footer{padding-top:44px;margin-top:56px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --c-ink:#161A17;--c-ink-2:#4A5450;--c-ink-3:#7C857F;
  --c-primary:#1C5B4A;--c-primary-600:#164A3C;--c-primary-100:#E4EFEA;
  --c-accent:#D0762C;--c-accent-600:#B25F1C;--c-accent-100:#FBEDE0;
  --c-bg:#F6F3EC;--c-surface:#FFFFFF;--c-border:#E2DCD0;--c-line-strong:#C9C1B2;
  --c-ok:#2E7D5B;--c-warn:#B23A2A;
  --r-sm:6px;--r-md:10px;--r-lg:16px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(22,26,23,.04),0 1px 3px rgba(22,26,23,.06);
  --sh-2:0 6px 20px -8px rgba(22,26,23,.18);
  --sh-3:0 14px 34px -14px rgba(28,91,74,.28);
  --font-title:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --bs-body-bg:#F6F3EC;
  --bs-body-color:#161A17;
  --bs-border-color:#E2DCD0;
  --bs-border-radius:10px;
  --bs-link-color:#1C5B4A;
  --bs-link-hover-color:#B25F1C;
  --bs-font-sans-serif:var(--font-body);
  --bs-primary:#1C5B4A;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);
  font-family:var(--font-body);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
body::before{
  content:"";position:fixed;top:0;left:0;right:0;height:3px;z-index:2200;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;text-underline-offset:3px;transition:color .2s ease;}
a:hover{color:var(--c-accent);}
h1,h2,h3,h4{font-family:var(--font-title);color:var(--c-ink);margin:0;letter-spacing:-.01em;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.container-kk{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:40px;}
.sec-title{font-size:28px;line-height:1.35;font-weight:700;}
.sec-title::after{content:"";display:block;width:32px;height:3px;background:var(--c-accent);border-radius:2px;margin-top:14px;}
.sec-lead{margin-top:16px;font-size:15px;color:var(--c-ink-2);max-width:760px;}
.text-muted-kk{color:var(--c-ink-2);font-size:14px;line-height:1.7;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- 顶部公告 ---------- */
.topbar{background:var(--c-ink);color:rgba(255,255,255,.8);font-size:12px;line-height:1.4;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;padding-top:6px;padding-bottom:6px;}
.topbar-text{display:flex;align-items:center;gap:8px;}
.topbar-text i{color:var(--c-accent);}
.topbar-side{display:flex;align-items:center;gap:14px;}
.topbar a{color:var(--c-accent-100);}
.topbar a:hover{color:#fff;}
.topbar-close{background:none;border:none;color:rgba(255,255,255,.6);font-size:16px;line-height:1;padding:4px 6px;cursor:pointer;border-radius:var(--r-sm);transition:color .2s,background .2s;}
.topbar-close:hover{color:#fff;background:rgba(255,255,255,.1);}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:1000;background:var(--c-surface);border-bottom:1px solid var(--c-border);transition:box-shadow .2s ease;}
.site-header.is-compact{box-shadow:var(--sh-2);}
.brand-row{display:flex;align-items:center;gap:24px;height:64px;transition:height .2s ease;}
.site-header.is-compact .brand-row{height:56px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:var(--r-md);background:var(--c-primary);color:#fff;
  font-family:var(--font-title);font-weight:700;font-size:18px;display:flex;align-items:center;justify-content:center;
  flex-shrink:0;transition:width .2s,height .2s;
}
.site-header.is-compact .brand-mark{width:30px;height:30px;font-size:16px;}
.brand-name{font-family:var(--font-title);font-size:18px;font-weight:700;color:var(--c-ink);white-space:nowrap;letter-spacing:.01em;}
.brand:hover .brand-name{color:var(--c-primary);}
.search-box{
  margin-left:auto;display:flex;align-items:center;gap:8px;width:320px;height:44px;padding:0 6px 0 14px;
  background:var(--c-bg);border:1px solid var(--c-border);border-radius:8px;transition:border-color .2s,box-shadow .2s;
}
.search-box:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(28,91,74,.12);}
.search-box i{color:var(--c-ink-3);font-size:14px;}
.search-box input{flex:1;min-width:0;border:none;background:transparent;font-size:14px;color:var(--c-ink);outline:none;height:100%;}
.search-box input::placeholder{color:var(--c-ink-3);}
.search-box button{
  height:34px;padding:0 14px;border:none;border-radius:6px;background:var(--c-primary);color:#fff;
  font-size:13px;font-weight:600;cursor:pointer;transition:background .2s;
}
.search-box button:hover{background:var(--c-primary-600);}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.search-toggle{display:none;width:40px;height:40px;border:1px solid var(--c-border);background:var(--c-surface);border-radius:8px;color:var(--c-primary);font-size:15px;cursor:pointer;}
.btn-kk{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;
  border-radius:8px;font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
  text-decoration:none;white-space:nowrap;transition:background .2s,color .2s,border-color .2s,transform .2s,box-shadow .2s;
}
.btn-sm-kk{min-height:38px;padding:0 16px;font-size:14px;}
.btn-primary-kk{background:var(--c-primary);color:#fff;}
.btn-primary-kk:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary-kk:active{transform:none;}
.btn-outline-kk{border-color:var(--c-primary);color:var(--c-primary);background:transparent;}
.btn-outline-kk:hover{background:rgba(28,91,74,.08);color:var(--c-primary-600);}
.btn-accent-kk{background:var(--c-accent);color:#fff;}
.btn-accent-kk:hover{background:var(--c-accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-outline-light-kk{border-color:rgba(255,255,255,.65);color:#fff;background:transparent;}
.btn-outline-light-kk:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.btn-light-kk{background:#fff;color:var(--c-primary);}
.btn-light-kk:hover{background:var(--c-accent-100);color:var(--c-accent-600);transform:translateY(-1px);}
.channel-nav{
  max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:28px;
  height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;scroll-snap-type:x proximity;
}
.channel-nav::-webkit-scrollbar{display:none;}
.channel-nav a{
  position:relative;flex-shrink:0;scroll-snap-align:start;font-size:15px;font-weight:500;color:var(--c-ink-2);
  padding:14px 0;white-space:nowrap;
}
.channel-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-accent);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.channel-nav a:hover{color:var(--c-primary);}
.channel-nav a:hover::after{transform:scaleX(1);}
.channel-nav a.active{color:var(--c-primary);font-weight:600;}
.channel-nav a.active::after{transform:scaleX(1);}

/* ---------- 分类 Hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--c-primary-600);}
.cat-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.55;}
.cat-hero-overlay{position:absolute;inset:0;background:linear-gradient(115deg,rgba(22,74,60,.94) 0%,rgba(28,91,74,.78) 55%,rgba(22,74,60,.86) 100%);}
.cat-hero-inner{position:relative;z-index:2;padding-top:48px;padding-bottom:56px;color:#fff;}
.breadcrumb-kk{display:flex;align-items:center;gap:8px;font-size:12px;color:rgba(255,255,255,.7);margin-bottom:20px;}
.breadcrumb-kk a{color:rgba(255,255,255,.82);}
.breadcrumb-kk a:hover{color:#fff;}
.breadcrumb-kk .sep{color:rgba(255,255,255,.4);}
.cat-badge{
  display:inline-flex;align-items:center;gap:6px;background:var(--c-accent-100);color:var(--c-accent-600);
  font-size:12px;font-weight:600;line-height:1.4;padding:5px 12px;border-radius:var(--r-pill);margin-bottom:18px;
}
.cat-hero h1{
  color:#fff;font-size:40px;line-height:1.25;font-weight:700;max-width:900px;margin-bottom:18px;
}
.cat-lede{max-width:820px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.88);margin:0 0 28px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 指标条 ---------- */
.metrics-band{background:var(--c-surface);border-bottom:1px solid var(--c-border);}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.metric{padding:30px 26px;border-right:1px solid var(--c-border);}
.metric:last-child{border-right:none;}
.metric-num{font-family:var(--font-title);font-size:32px;line-height:1.2;font-weight:700;color:var(--c-primary);}
.metric-num span{font-size:16px;font-weight:600;margin-left:4px;color:var(--c-ink-2);font-family:var(--font-body);}
.metric-label{font-size:13px;line-height:1.7;color:var(--c-ink-2);margin-top:6px;}

/* ---------- 时间轴 ---------- */
.timeline-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:40px;align-items:end;margin-bottom:8px;}
.timeline{display:flex;flex-direction:column;}
.tl-item{display:grid;gap:36px;padding:44px 0;border-top:1px solid var(--c-border);}
.tl-item:first-child{border-top:1px solid var(--c-line-strong);}
.tl-item.with-media{grid-template-columns:minmax(0,1fr) 400px;align-items:center;}
.tl-item.with-media.reverse{grid-template-columns:400px minmax(0,1fr);}
.tl-head{display:flex;align-items:baseline;gap:16px;margin-bottom:12px;}
.tl-num{font-family:var(--font-title);font-size:26px;font-weight:700;color:var(--c-accent);line-height:1;}
.tl-title{font-size:20px;font-weight:600;line-height:1.5;}
.tl-body p{font-size:15px;line-height:1.9;color:var(--c-ink-2);margin:0;}
.tl-list{list-style:none;display:grid;gap:10px;margin-top:16px;}
.tl-list li{position:relative;padding-left:20px;font-size:15px;line-height:1.8;color:var(--c-ink-2);}
.tl-list li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.tl-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-lg);border:1px solid var(--c-border);box-shadow:var(--sh-1);}
.tl-note{
  margin-top:18px;padding:14px 18px;border-left:3px solid var(--c-primary);background:var(--c-primary-100);
  border-radius:0 var(--r-md) var(--r-md) 0;font-size:14px;line-height:1.8;color:var(--c-primary-600);
}

/* ---------- 验证方式对照 ---------- */
.compare-block{background:var(--c-surface);border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);}
.compare{border-top:1px solid var(--c-border);margin-top:32px;}
.compare-row{
  display:grid;grid-template-columns:200px 170px minmax(0,1fr);gap:28px;align-items:center;
  padding:22px 16px;border-bottom:1px solid var(--c-border);transition:background .2s ease;
}
.compare-row:hover{background:rgba(228,239,234,.6);}
.compare-name{font-family:var(--font-title);font-size:17px;font-weight:700;color:var(--c-ink);display:flex;align-items:center;gap:10px;}
.compare-name i{color:var(--c-primary);font-size:14px;}
.compare-tag{font-size:12px;line-height:1.4;color:var(--c-accent-600);background:var(--c-accent-100);border-radius:var(--r-pill);padding:4px 12px;display:inline-block;font-weight:600;}
.compare-desc{font-size:14px;line-height:1.8;color:var(--c-ink-2);margin:0;}

/* ---------- 深色提醒区 ---------- */
.dark-band{position:relative;background:var(--c-primary-600);color:#fff;overflow:hidden;}
.dark-band-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.22;}
.dark-band-overlay{position:absolute;inset:0;background:linear-gradient(100deg,rgba(22,74,60,.92),rgba(28,91,74,.72));}
.dark-band .container-kk{position:relative;z-index:2;}
.dark-band .sec-title{color:#fff;}
.dark-band .sec-lead{color:rgba(255,255,255,.82);}
.dark-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,340px);gap:48px;align-items:start;}
.issue-list{list-style:none;display:grid;gap:0;}
.issue{padding:24px 0;border-top:1px solid rgba(255,255,255,.16);display:grid;grid-template-columns:52px minmax(0,1fr);gap:16px;}
.issue:first-child{border-top:none;padding-top:0;}
.issue-num{font-family:var(--font-title);font-size:22px;font-weight:700;color:var(--c-accent);line-height:1.3;}
.issue-title{font-size:17px;font-weight:600;color:#fff;margin-bottom:6px;}
.issue-text{font-size:14px;line-height:1.85;color:rgba(255,255,255,.8);margin:0;}
.side-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:var(--r-lg);padding:28px;}
.side-card h3{color:#fff;font-size:18px;margin-bottom:14px;}
.side-card p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.8);}
.side-card ul{list-style:none;display:grid;gap:12px;margin-top:6px;}
.side-card li{font-size:14px;line-height:1.7;color:rgba(255,255,255,.85);display:flex;gap:10px;align-items:flex-start;}
.side-card li i{color:var(--c-accent);margin-top:6px;font-size:12px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:840px;margin:0 auto;}
.accordion{--bs-accordion-border-color:var(--c-border);--bs-accordion-btn-color:var(--c-ink);
  --bs-accordion-active-color:var(--c-primary);--bs-accordion-active-bg:transparent;
  --bs-accordion-btn-focus-box-shadow:none;--bs-accordion-body-padding-y:0;--bs-accordion-body-padding-x:0;}
.accordion-item{background:transparent;border:none;border-top:1px solid var(--c-border);border-radius:0;}
.accordion-item:first-of-type{border-top:1px solid var(--c-line-strong);border-top-left-radius:0;border-top-right-radius:0;}
.accordion-item:last-of-type{border-bottom:1px solid var(--c-line-strong);border-bottom-left-radius:0;border-bottom-right-radius:0;}
.accordion-button{
  position:relative;background:transparent;font-size:16px;font-weight:600;line-height:1.7;color:var(--c-ink);
  padding:22px 56px 22px 16px;box-shadow:none;transition:color .2s,box-shadow .2s;
}
.accordion-button::after{display:none;}
.accordion-button::before{
  content:"+";position:absolute;right:8px;top:50%;transform:translateY(-50%);width:28px;height:28px;
  line-height:26px;text-align:center;border:1px solid var(--c-line-strong);border-radius:50%;
  font-size:16px;font-weight:600;color:var(--c-primary);background:var(--c-surface);
  transition:background .2s,color .2s,border-color .2s,transform .2s;
}
.accordion-button:not(.collapsed){color:var(--c-primary);background:transparent;box-shadow:inset 3px 0 0 var(--c-accent);}
.accordion-button:not(.collapsed)::before{content:"−";background:var(--c-accent);border-color:var(--c-accent);color:#fff;}
.accordion-button:hover{color:var(--c-primary);}
.accordion-button:hover::before{border-color:var(--c-primary);}
.accordion-body{padding:0 56px 24px 16px;font-size:15px;line-height:1.9;color:var(--c-ink-2);}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-primary-100);border:1px solid #D3E5DC;border-radius:var(--r-lg);
  padding:56px;text-align:center;
}
.cta-band h2{font-size:28px;line-height:1.35;margin-bottom:14px;}
.cta-band p{max-width:660px;margin:0 auto 26px;font-size:15px;line-height:1.9;color:var(--c-ink-2);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--c-accent);}
.footer-brand .brand-name{color:#fff;font-size:17px;}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);}
.site-footer h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;letter-spacing:.02em;font-family:var(--font-body);}
.footer-links{list-style:none;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px;line-height:2.2;}
.footer-links a:hover{color:var(--c-accent);}
.qr-box{
  width:56px;height:56px;border-radius:var(--r-md);border:1px solid rgba(255,255,255,.24);
  display:flex;align-items:center;justify-content:center;font-size:24px;color:rgba(255,255,255,.66);
  margin-bottom:12px;background:rgba(255,255,255,.05);
}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:var(--c-accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .timeline-head{grid-template-columns:minmax(0,1fr);gap:16px;}
  .tl-item.with-media,.tl-item.with-media.reverse{grid-template-columns:minmax(0,1fr) 320px;}
  .tl-item.with-media.reverse{grid-template-columns:320px minmax(0,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .section-tight{padding:48px 0;}
  .cat-hero h1{font-size:32px;}
  .cat-hero-inner{padding-top:36px;padding-bottom:44px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);}
  .metric{border-bottom:1px solid var(--c-border);}
  .metric:nth-child(2n){border-right:none;}
  .metric:nth-child(n+3){border-bottom:none;}
  .tl-item.with-media,.tl-item.with-media.reverse{grid-template-columns:minmax(0,1fr);gap:24px;}
  .tl-item.with-media.reverse .tl-media{order:-1;}
  .compare-row{grid-template-columns:160px minmax(0,1fr);gap:16px 20px;}
  .compare-desc{grid-column:1 / -1;}
  .dark-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:40px 28px;}
}
@media (max-width:767.98px){
  .section{padding:44px 0;}
  .section-tight{padding:36px 0;}
  .container-kk,.channel-nav{padding-left:16px;padding-right:16px;}
  .topbar-inner{min-height:32px;}
  .topbar-text span{display:none;}
  .brand-row{height:56px;gap:12px;flex-wrap:wrap;padding-top:0;}
  .site-header.is-compact .brand-row{height:56px;}
  .brand-name{font-size:16px;}
  .search-box{display:none;order:3;width:100%;margin:0 0 10px;}
  .site-header.search-open .search-box{display:flex;}
  .search-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .btn-sm-kk{min-height:38px;padding:0 12px;font-size:13px;}
  .channel-nav{height:46px;gap:22px;}
  .channel-nav a{font-size:14px;}
  .cat-hero h1{font-size:28px;line-height:1.3;}
  .cat-lede{font-size:15px;}
  .hero-cta .btn-kk{flex:1 1 100%;}
  .sec-title{font-size:22px;}
  .metric{padding:22px 18px;}
  .metric-num{font-size:26px;}
  .tl-item{padding:32px 0;}
  .tl-title{font-size:18px;}
  .compare-row{padding:18px 8px;grid-template-columns:minmax(0,1fr);gap:8px;}
  .accordion-button{font-size:15px;padding:18px 48px 18px 12px;}
  .accordion-body{padding:0 20px 20px 12px;}
  .cta-band{padding:32px 20px;}
  .cta-band h2{font-size:22px;}
  .cta-actions .btn-kk{flex:1 1 100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition:none !important;animation:none !important;}
  .btn-kk:hover,.btn-primary-kk:hover,.btn-accent-kk:hover{transform:none;}
}