/* roulang page: index */
:root{
  --ink:#1F3D3A;
  --ink-deep:#142C2A;
  --cinnabar:#C0442E;
  --cinnabar-d:#A5381F;
  --bronze:#A98A5B;
  --paper:#F7F4ED;
  --paper-2:#EFEAE0;
  --white:#FFFFFF;
  --text:#14201F;
  --text-2:#4A5A58;
  --text-3:#8A9795;
  --line:rgba(20,32,31,.12);
  --ok:#2F6B4F;
  --warn:#B8791F;
  --r-btn:8px;
  --r-card:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(20,32,31,.04), 0 12px 32px -12px rgba(20,32,31,.10);
  --sh-2:0 2px 4px rgba(20,32,31,.06), 0 18px 42px -14px rgba(20,32,31,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --bs-body-font-family:var(--sans);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--text);
  font-family:var(--sans);font-size:16px;line-height:1.8;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
h1,h2,h3,h4,.serif{font-family:var(--serif);color:var(--ink-deep);letter-spacing:-.01em;line-height:1.22;margin:0;font-weight:700;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
a{color:var(--ink);text-decoration:none;transition:color .3s var(--ease);}
a:hover{color:var(--cinnabar);}
img{max-width:100%;display:block;border-radius:var(--r-img);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cinnabar);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.container{max-width:1320px;}}
.section{padding:96px 0;}
.section-alt{background:var(--paper-2);}
.section-line{border-top:1px solid var(--line);}
.sec-head{max-width:760px;margin-bottom:48px;}
.sec-kicker{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.18em;color:var(--bronze);font-weight:600;margin-bottom:14px;}
.sec-kicker::before{content:"";width:32px;height:2px;background:var(--bronze);display:block;}
.sec-title{font-size:clamp(1.6rem,2.8vw,2.25rem);margin-bottom:14px;}
.sec-desc{color:var(--text-2);font-size:16px;max-width:760px;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .3s var(--ease);text-decoration:none;line-height:1;}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn-xl{height:60px;padding:0 34px;font-size:17px;}
.btn-primary,.btn-primary:focus{
  background:var(--cinnabar);color:#fff;border-color:var(--cinnabar);box-shadow:0 1px 2px rgba(192,68,46,.18);
}
.btn-primary:hover{background:var(--cinnabar-d);border-color:var(--cinnabar-d);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px -10px rgba(192,68,46,.55);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-light:hover{background:#fff;color:var(--ink-deep);border-color:#fff;transform:translateY(-2px);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--ink);font-weight:600;font-size:15px;border-bottom:1px solid var(--ink);padding-bottom:2px;line-height:1.4;}
.btn-text:hover{color:var(--cinnabar);border-bottom-color:var(--cinnabar);}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink-deep);color:rgba(255,255,255,.7);font-size:13px;height:38px;display:flex;align-items:center;}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0;}
.topbar-domain{color:#fff;font-weight:600;letter-spacing:.02em;white-space:nowrap;}
.topbar-note{color:rgba(255,255,255,.6);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-links{display:flex;align-items:center;gap:22px;}
.topbar-links a{color:rgba(255,255,255,.72);font-size:13px;white-space:nowrap;}
.topbar-links a:hover{color:#fff;}
.topbar-links a.accent{color:#E8907B;}
.topbar-links a.accent:hover{color:#F4A896;}
@media (max-width:767px){
  .topbar-note{display:none;}
  .topbar-links a{display:none;}
  .topbar-links a.accent{display:inline;}
}

/* ---------- 主导航 ---------- */
.site-nav{position:sticky;top:0;z-index:120;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);transition:box-shadow .3s var(--ease);}
.site-nav.scrolled{box-shadow:0 6px 22px -14px rgba(20,32,31,.28);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:flex;flex-direction:column;line-height:1.05;flex-shrink:0;}
.brand-main{font-family:var(--serif);font-size:21px;font-weight:700;color:var(--ink);letter-spacing:.02em;}
.brand-sub{font-size:11px;letter-spacing:.3em;color:var(--bronze);margin-top:4px;}
.nav-menu{display:flex;align-items:center;gap:2px;}
.nav-menu a{display:block;padding:9px 13px;font-size:15px;font-weight:500;color:var(--text-2);border-bottom:2px solid transparent;transition:color .3s var(--ease),border-color .3s var(--ease);}
.nav-menu a:hover{color:var(--ink);}
.nav-menu a.active{color:var(--ink);font-weight:700;border-bottom-color:var(--cinnabar);}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:var(--r-btn);align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--ink);transition:transform .3s var(--ease),opacity .3s var(--ease);}
.nav-toggle.open span:nth-child(1){transform:translateY(6.6px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg);}
@media (max-width:1100px){
  .nav-menu a{padding:9px 9px;font-size:14px;}
}
@media (max-width:991px){
  .nav-menu,.nav-right .btn{display:none;}
  .nav-toggle{display:flex;}
  .nav-inner{height:64px;}
}
.mobile-panel{position:fixed;inset:0;background:#fff;z-index:200;padding:24px 24px 32px;transform:translateX(100%);transition:transform .36s var(--ease);display:flex;flex-direction:column;overflow-y:auto;}
.mobile-panel.open{transform:translateX(0);}
.mobile-panel-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line);}
.mobile-close{width:38px;height:38px;border:1px solid var(--line);background:#fff;border-radius:var(--r-btn);font-size:18px;color:var(--ink);cursor:pointer;}
.mobile-nav{margin-top:8px;flex:1;}
.mobile-nav a{display:block;font-size:18px;font-weight:500;color:var(--ink-deep);padding:18px 2px;border-bottom:1px solid var(--line);}
.mobile-nav a.active{color:var(--cinnabar);font-weight:700;}
.mobile-panel-foot{margin-top:24px;}
.mobile-panel-foot .btn{width:100%;}

/* ---------- Hero ---------- */
.hero{position:relative;background:linear-gradient(180deg,#FBF9F4 0%,var(--paper) 100%);padding:76px 0 88px;overflow:hidden;}
.hero::after{content:"";position:absolute;right:-160px;top:-120px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(169,138,91,.16),transparent 68%);pointer-events:none;}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:60px;align-items:center;position:relative;z-index:1;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border:1px solid var(--bronze);border-radius:999px;font-size:13px;color:#8A6E42;background:rgba(169,138,91,.08);margin-bottom:22px;}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--cinnabar);display:block;}
.hero h1{font-size:clamp(2.05rem,4.4vw,3.4rem);font-weight:800;margin-bottom:20px;}
.hero h1 em{font-style:normal;color:var(--cinnabar);}
.hero-sub{font-size:17px;color:var(--text-2);max-width:600px;margin-bottom:32px;line-height:1.85;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 0;font-size:13px;color:var(--text-3);border-top:1px solid var(--line);padding-top:20px;}
.hero-meta span{display:inline-flex;align-items:center;}
.hero-meta span::after{content:"";width:4px;height:4px;border-radius:50%;background:var(--bronze);margin:0 14px;opacity:.7;}
.hero-meta span:last-child::after{display:none;}
.hero-meta b{color:var(--ink);font-weight:600;margin-left:6px;}
.hero-visual{position:relative;}
.hero-frame{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);border:1px solid rgba(20,32,31,.08);background:#fff;}
.ratio-16x10{position:relative;width:100%;padding-top:62.5%;overflow:hidden;border-radius:var(--r-img);}
.ratio-16x10 img,.ratio-16x10 .ph{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:var(--r-img);}
.hero-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(31,61,58,.10),rgba(31,61,58,.02));pointer-events:none;}
.hero-tag{position:absolute;left:-18px;bottom:26px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:14px 18px;box-shadow:var(--sh-2);min-width:190px;}
.hero-tag strong{display:block;font-family:var(--serif);font-size:22px;color:var(--ink);line-height:1.2;}
.hero-tag small{display:block;font-size:12px;color:var(--text-3);margin-top:6px;letter-spacing:.08em;}
@media (max-width:991px){
  .hero{padding:56px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-tag{left:16px;bottom:16px;}
}
@media (max-width:575px){
  .hero-actions .btn{width:100%;}
  .hero-meta{font-size:12px;}
  .hero-meta span::after{margin:0 9px;}
}

/* ---------- 价值主张 ---------- */
.value-grid{display:grid;grid-template-columns:1.08fr 1fr;gap:24px;}
.value-col{display:grid;gap:24px;}
.value-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px 26px;transition:border-color .3s var(--ease),box-shadow .3s var(--ease),transform .3s var(--ease);}
.value-card:hover{border-color:var(--ink);box-shadow:var(--sh-1);transform:translateY(-2px);}
.value-num{font-family:var(--serif);font-size:34px;font-weight:700;color:var(--bronze);line-height:1;margin-bottom:14px;transition:color .3s var(--ease);}
.value-card:hover .value-num{color:var(--cinnabar);}
.value-card h3{font-size:18px;margin-bottom:10px;}
.value-card p{font-size:15px;color:var(--text-2);margin:0;}
.value-card.feature{display:flex;flex-direction:column;justify-content:center;background:var(--ink-deep);border-color:var(--ink-deep);}
.value-card.feature .value-num{color:rgba(255,255,255,.42);}
.value-card.feature h3{color:#fff;font-size:22px;}
.value-card.feature p{color:rgba(255,255,255,.72);}
.value-card.feature:hover{border-color:var(--ink);transform:translateY(-2px);}
@media (max-width:991px){.value-grid{grid-template-columns:1fr;}}

/* ---------- 截图轮播 ---------- */
.shot-wrap{display:grid;grid-template-columns:1.55fr .95fr;gap:44px;align-items:start;}
.shot-stage{border:1px solid var(--line);border-radius:var(--r-card);background:#fff;padding:18px;box-shadow:var(--sh-1);}
.shot-caption{font-size:14px;color:var(--text-2);margin-top:16px;padding-left:2px;border-left:2px solid var(--bronze);padding-left:12px;}
.carousel-control-prev,.carousel-control-next{width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.75);background:rgba(20,44,42,.55);opacity:.9;top:auto;bottom:-22px;transform:none;transition:background .3s var(--ease),transform .3s var(--ease);}
.carousel-control-prev{left:18px;}
.carousel-control-next{right:18px;}
.carousel-control-prev:hover,.carousel-control-next:hover{background:var(--cinnabar);border-color:var(--cinnabar);opacity:1;}
.carousel-control-prev-icon,.carousel-control-next-icon{width:14px;height:14px;}
.shot-list{display:grid;gap:14px;}
.shot-item{display:flex;gap:14px;align-items:center;padding:14px 16px;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;cursor:pointer;transition:border-color .3s var(--ease),box-shadow .3s var(--ease);}
.shot-item:hover{border-color:var(--ink);box-shadow:var(--sh-1);}
.shot-item .idx{font-family:var(--serif);font-size:16px;font-weight:700;color:var(--bronze);width:26px;flex-shrink:0;}
.shot-item strong{display:block;font-size:15px;font-weight:600;color:var(--ink-deep);}
.shot-item small{display:block;font-size:13px;color:var(--text-3);margin-top:3px;line-height:1.6;}
@media (max-width:991px){.shot-wrap{grid-template-columns:1fr;gap:32px;}}

/* ---------- 系统要求 ---------- */
.spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.spec-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:30px 28px;}
.spec-head{display:flex;align-items:baseline;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:8px;}
.spec-head h3{font-size:19px;}
.spec-head small{font-size:12px;color:var(--text-3);}
.spec-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);}
.spec-row:last-child{border-bottom:0;}
.spec-row dt{font-size:15px;font-weight:600;color:var(--text);flex-shrink:0;}
.spec-row dd{margin:0;font-size:14px;color:var(--text-2);text-align:right;}
@media (max-width:767px){
  .spec-grid{grid-template-columns:1fr;}
  .spec-row{flex-direction:column;align-items:flex-start;gap:4px;}
  .spec-row dd{text-align:left;}
}

/* ---------- 评价墙 ---------- */
.review-wall{columns:3;column-gap:24px;}
.review-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;margin-bottom:24px;break-inside:avoid;transition:box-shadow .3s var(--ease),border-color .3s var(--ease);}
.review-card:hover{box-shadow:var(--sh-1);border-color:rgba(31,61,58,.28);}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{width:42px;height:42px;border-radius:10px;background:linear-gradient(135deg,#1F3D3A,#3A5F5A);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:17px;font-weight:700;flex-shrink:0;}
.review-top strong{display:block;font-size:15px;color:var(--ink-deep);}
.review-top small{display:block;font-size:12px;color:var(--text-3);margin-top:2px;}
.stars{display:flex;gap:3px;margin-bottom:12px;}
.stars i{width:13px;height:13px;display:block;background:var(--cinnabar);clip-path:polygon(50% 0,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%);}
.review-card p{font-size:14px;color:var(--text-2);line-height:1.85;margin:0;}
.pill{display:inline-block;padding:3px 11px;border:1px solid var(--bronze);border-radius:999px;font-size:12px;color:#8A6E42;background:rgba(169,138,91,.07);}
@media (max-width:991px){.review-wall{columns:2;}}
@media (max-width:575px){.review-wall{columns:1;}}

/* ---------- 下载区 ---------- */
.download-band{background:var(--ink-deep);color:#fff;padding:92px 0;}
.download-band .sec-title{color:#fff;}
.download-band .sec-desc{color:rgba(255,255,255,.7);}
.dl-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:48px;align-items:center;}
.dl-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:20px;}
.dl-note{font-size:13px;color:rgba(255,255,255,.55);}
.dl-note b{color:rgba(255,255,255,.82);font-weight:600;}
.qr-box{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.2);border-radius:var(--r-card);padding:18px;text-align:center;}
.qr-code{width:120px;height:120px;margin:0 auto 12px;border-radius:10px;background:#F7F4ED;border:1px solid rgba(255,255,255,.25);display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--ink);letter-spacing:.1em;background-image:repeating-linear-gradient(0deg,rgba(20,32,31,.12) 0 2px,transparent 2px 8px),repeating-linear-gradient(90deg,rgba(20,32,31,.12) 0 2px,transparent 2px 8px);}
.qr-box small{display:block;font-size:12px;color:rgba(255,255,255,.6);line-height:1.6;}
@media (max-width:991px){.dl-grid{grid-template-columns:1fr;gap:36px;}}
@media (max-width:575px){.dl-actions .btn{width:100%;}}

/* ---------- 资讯列表 ---------- */
.post-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px;flex-wrap:wrap;}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:border-color .3s var(--ease),box-shadow .3s var(--ease),transform .3s var(--ease);height:100%;}
.post-card:hover{border-color:var(--ink);box-shadow:var(--sh-1);transform:translateY(-2px);}
.post-cover{position:relative;width:100%;padding-top:56.25%;overflow:hidden;background:var(--paper-2);}
.post-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s var(--ease);}
.post-card:hover .post-cover img{transform:scale(1.03);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.post-body .badge-cat{align-self:flex-start;margin-bottom:12px;}
.badge-cat{display:inline-block;padding:3px 11px;border:1px solid var(--bronze);border-radius:999px;font-size:12px;color:#8A6E42;background:rgba(169,138,91,.07);}
.post-title{font-family:var(--serif);font-size:17px;font-weight:700;color:var(--ink-deep);line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card:hover .post-title{color:var(--cinnabar);}
.post-sum{font-size:14px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px;}
.post-time{font-size:12px;color:var(--text-3);margin-top:auto;display:flex;align-items:center;gap:6px;}
.post-time::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--bronze);display:block;}
.post-empty{background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);padding:56px 24px;text-align:center;color:var(--text-3);font-size:15px;}
.post-empty span{display:block;font-size:34px;color:var(--bronze);font-family:var(--serif);margin-bottom:12px;line-height:1;}
@media (max-width:991px){.post-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:575px){.post-grid{grid-template-columns:1fr;}}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{background:transparent;border:0;border-top:1px solid var(--line);}
.faq-acc .accordion-item:last-child{border-bottom:1px solid var(--line);}
.faq-acc .accordion-header{margin:0;}
.faq-acc .accordion-button{background:transparent!important;box-shadow:none!important;border-radius:0!important;padding:24px 0;font-size:17px;font-weight:600;color:var(--ink-deep);display:flex;align-items:center;gap:20px;font-family:var(--serif);line-height:1.5;}
.faq-acc .accordion-button:not(.collapsed){color:var(--ink);}
.faq-acc .accordion-button::after{display:none;}
.faq-acc .faq-icon{position:relative;width:16px;height:16px;margin-left:auto;flex:0 0 16px;}
.faq-acc .faq-icon::before,.faq-acc .faq-icon::after{content:"";position:absolute;background:var(--bronze);transition:transform .3s var(--ease),background .3s var(--ease);}
.faq-acc .faq-icon::before{left:0;top:7px;width:16px;height:1.6px;}
.faq-acc .faq-icon::after{top:0;left:7px;width:1.6px;height:16px;}
.faq-acc .accordion-button:not(.collapsed) .faq-icon::after{transform:scaleY(0);}
.faq-acc .accordion-button:hover .faq-icon::before,.faq-acc .accordion-button:hover .faq-icon::after{background:var(--cinnabar);}
.faq-acc .accordion-body{padding:0 46px 26px 0;font-size:15px;color:var(--text-2);line-height:1.9;max-width:860px;}
@media (max-width:575px){.faq-acc .accordion-button{font-size:16px;padding:20px 0;}.faq-acc .accordion-body{padding-right:0;}}

/* ---------- 页脚前 CTA ---------- */
.pre-cta{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:44px 0;}
.pre-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.pre-cta h3{font-size:20px;margin-bottom:6px;}
.pre-cta p{font-size:14px;color:var(--text-2);margin:0;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding:72px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand .brand-main{color:#fff;}
.footer-brand p{font-size:13px;color:rgba(255,255,255,.6);line-height:1.85;margin:16px 0 0;max-width:320px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-family:var(--sans);font-weight:600;letter-spacing:.04em;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{color:rgba(255,255,255,.66);font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-col li{font-size:13.5px;color:rgba(255,255,255,.6);line-height:1.7;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 0;font-size:12.5px;color:rgba(255,255,255,.55);flex-wrap:wrap;}
.footer-bottom a{color:rgba(255,255,255,.55);}
.footer-bottom a:hover{color:#fff;}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:575px){.footer-grid{grid-template-columns:1fr;}.footer-bottom{flex-direction:column;align-items:flex-start;}}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
  .btn:hover{transform:none;}
  .post-card:hover{transform:none;}
  .value-card:hover{transform:none;}
}

/* roulang page: article */
:root{
  --ink:#1F3D3A;
  --ink-deep:#142C2A;
  --cinnabar:#C0442E;
  --cinnabar-dark:#A6371F;
  --bronze:#A98A5B;
  --paper:#F7F4ED;
  --paper-2:#EFEAE0;
  --white:#FFFFFF;
  --text:#14201F;
  --text-2:#4A5A58;
  --text-3:#8A9795;
  --line:rgba(20,32,31,.12);
  --line-strong:rgba(20,32,31,.22);
  --ok:#2F6B4F;
  --warn:#B8791F;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:12px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(20,32,31,.04), 0 12px 32px -12px rgba(20,32,31,.10);
  --shadow-2:0 2px 6px rgba(20,32,31,.06), 0 20px 44px -16px rgba(20,32,31,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,"Times New Roman",serif;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --bs-body-bg:var(--paper);
  --bs-body-color:var(--text);
  --bs-link-color:var(--ink);
  --bs-link-hover-color:var(--cinnabar);
  --bs-border-color:var(--line);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink);text-decoration:none;transition:color .3s var(--ease)}
a:hover{color:var(--cinnabar)}
h1,h2,h3,h4,h5{font-family:var(--font-serif);font-weight:700;letter-spacing:-.01em;line-height:1.25;color:var(--ink-deep);margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--cinnabar);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1320px}}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--ink-deep);color:rgba(255,255,255,.78);font-size:13px;border-bottom:1px solid rgba(255,255,255,.08)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:38px;gap:16px}
.topbar-left{display:flex;align-items:center;gap:12px;white-space:nowrap;overflow:hidden}
.topbar-domain{color:var(--bronze);letter-spacing:.06em;font-weight:600}
.topbar-tip{color:rgba(255,255,255,.6)}
.topbar-links{display:flex;align-items:center;gap:20px}
.topbar-links a{color:rgba(255,255,255,.78);font-size:13px}
.topbar-links a:hover{color:#fff}
.topbar-links a.accent{color:var(--cinnabar);font-weight:600}
.topbar-links a.accent:hover{color:#E0705A}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(247,244,237,.96)}
.mainnav{border-bottom:1px solid var(--line)}
.site-header.is-stuck .mainnav{box-shadow:0 1px 0 var(--line),0 10px 26px -20px rgba(20,32,31,.45)}
.mainnav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.brand{display:flex;flex-direction:column;line-height:1.1;flex-shrink:0}
.brand-main{font-family:var(--font-serif);font-size:22px;font-weight:800;color:var(--ink-deep);letter-spacing:.02em}
.brand-sub{font-size:12px;color:var(--bronze);letter-spacing:.34em;margin-top:4px}
.nav-menu{display:flex;align-items:center;gap:28px;flex:1;justify-content:center}
.nav-menu ul{display:flex;align-items:center;gap:28px}
.nav-menu ul a{display:inline-block;position:relative;padding:8px 0;font-size:15px;font-weight:500;color:var(--text-2)}
.nav-menu ul a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--cinnabar);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.nav-menu ul a:hover{color:var(--ink)}
.nav-menu ul a:hover::after{transform:scaleX(1)}
.nav-menu ul a.active{color:var(--ink);font-weight:600}
.nav-menu ul a.active::after{transform:scaleX(1)}
.nav-cta{flex-shrink:0}
.nav-cta-mobile{display:none}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line-strong);border-radius:var(--r-sm);background:transparent;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer}
.nav-toggle span{display:block;width:20px;height:1.6px;background:var(--ink);transition:transform .3s var(--ease),opacity .3s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn-solid,
.btn-outline-ink,
.btn-text{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-sans);font-weight:600;cursor:pointer;
  border-radius:var(--r-sm);transition:all .3s var(--ease);text-align:center;
}
.btn-solid{background:var(--cinnabar);color:#fff;border:1px solid var(--cinnabar);padding:0 24px;height:44px;font-size:15px}
.btn-solid:hover{background:var(--cinnabar-dark);border-color:var(--cinnabar-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-1)}
.btn-solid:active{transform:translateY(0)}
.btn-solid.btn-lg{height:56px;padding:0 32px;font-size:16px}
.btn-outline-ink{background:transparent;color:var(--ink);border:1px solid var(--ink);padding:0 24px;height:44px;font-size:15px}
.btn-outline-ink:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-outline-ink.on-dark{color:#fff;border-color:rgba(255,255,255,.6)}
.btn-outline-ink.on-dark:hover{background:#fff;color:var(--ink-deep);border-color:#fff}
.btn-text{color:var(--ink);font-size:14px;border-bottom:1px solid var(--bronze);border-radius:0;padding:2px 0;height:auto}
.btn-text:hover{color:var(--cinnabar);border-bottom-color:var(--cinnabar)}

/* ============ 内页头部 ============ */
.inner-head{
  position:relative;
  padding:40px 0 48px;
  background:
    linear-gradient(180deg,rgba(247,244,237,.94) 0%,rgba(239,234,224,.92) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--cinnabar)}
.crumb .sep{color:var(--bronze)}
.crumb-current{color:var(--text-2);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cat-badge{display:inline-block;font-size:12px;letter-spacing:.12em;color:var(--bronze);border:1px solid rgba(169,138,91,.5);border-radius:var(--r-pill);padding:4px 14px;margin-bottom:18px}
.inner-head h1{
  font-size:clamp(1.7rem,3.4vw,2.6rem);
  max-width:900px;
  margin-bottom:20px;
  word-break:break-word;
}
.meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--text-3)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--bronze);display:inline-block}
.meta-row time{color:var(--text-2)}
.meta-row .src{color:var(--text-2)}

/* ============ 正文布局 ============ */
.article-wrap{padding:64px 0 72px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 300px;
  gap:56px;
  justify-content:center;
  align-items:start;
}
.article-main{min-width:0}
.article-body{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-1);
  padding:48px 52px;
  max-width:760px;
}
.article-body>*+*{margin-top:22px}
.article-body p{font-size:16.5px;line-height:1.9;color:var(--text)}
.article-body>p:first-of-type{font-size:18px;color:var(--text-2)}
.article-body h2{
  font-size:24px;
  margin-top:44px;
  padding-left:16px;
  position:relative;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;background:var(--cinnabar);border-radius:2px}
.article-body h3{font-size:19px;margin-top:34px;color:var(--ink)}
.article-body h4{font-size:17px;margin-top:28px;color:var(--ink)}
.article-body ul{list-style:none;padding-left:2px}
.article-body ul li{position:relative;padding-left:20px;margin:10px 0;line-height:1.85}
.article-body ul li::before{content:"";position:absolute;left:0;top:.78em;width:9px;height:1.6px;background:var(--bronze)}
.article-body ol{list-style:decimal;padding-left:22px}
.article-body ol li{margin:10px 0;line-height:1.85}
.article-body ol li::marker{color:var(--cinnabar);font-weight:600}
.article-body blockquote{
  margin:32px 0;
  padding:20px 24px;
  background:var(--paper-2);
  border-left:2px solid var(--bronze);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--text-2);
  font-size:16px;
}
.article-body blockquote p{font-size:16px;color:var(--text-2);margin:0}
.article-body a{color:var(--ink);text-decoration:underline;text-underline-offset:4px;text-decoration-color:rgba(31,61,58,.35)}
.article-body a:hover{color:var(--cinnabar);text-decoration-color:var(--cinnabar)}
.article-body img{border-radius:var(--r-lg);margin:28px auto;box-shadow:var(--shadow-1)}
.article-body figure{margin:28px 0}
.article-body figcaption{font-size:12.5px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:28px 0;font-size:15px}
.article-body thead th{background:var(--paper-2);text-align:left;font-weight:600;color:var(--ink-deep)}
.article-body th,.article-body td{padding:13px 16px;border-bottom:1px solid var(--line);line-height:1.6}
.article-body td:last-child{text-align:right;color:var(--text-2)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.article-body strong{color:var(--ink-deep);font-weight:700}
.article-body code{background:var(--paper-2);border:1px solid var(--line);border-radius:4px;padding:1px 7px;font-size:14px;color:var(--ink)}

.empty-state{
  text-align:center;
  padding:64px 24px;
  border:1px dashed var(--line-strong);
  border-radius:var(--r-md);
  background:var(--white);
}
.empty-state h2{font-size:22px;margin-bottom:12px}
.empty-state p{color:var(--text-2);margin-bottom:24px}

.article-foot{margin-top:32px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag-list a{
  font-size:12.5px;color:var(--text-2);border:1px solid var(--line-strong);
  border-radius:var(--r-pill);padding:5px 14px;background:var(--white);
  transition:all .3s var(--ease);
}
.tag-list a:hover{color:var(--cinnabar);border-color:var(--cinnabar);transform:translateY(-2px)}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:110px;display:flex;flex-direction:column;gap:22px}
.side-card{background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1);padding:24px}
.side-card h3{font-size:16px;margin-bottom:6px}
.side-card .side-sub{font-size:12.5px;color:var(--text-3);margin-bottom:16px}
.side-list li{border-top:1px solid var(--line);padding:14px 0}
.side-list li:first-child{border-top:0;padding-top:2px}
.side-list a{display:block;font-size:14.5px;font-weight:500;color:var(--ink);line-height:1.6}
.side-list span{display:block;font-size:12.5px;color:var(--text-3);margin-top:6px}
.side-stat{display:flex;align-items:baseline;gap:10px;margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
.side-stat b{font-family:var(--font-serif);font-size:28px;color:var(--cinnabar);line-height:1}
.side-stat em{font-style:normal;font-size:13px;color:var(--text-3)}

/* ============ 相关推荐 ============ */
.related{padding:0 0 80px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;border-bottom:1px solid var(--line);padding-bottom:18px}
.section-head h2{font-size:clamp(1.4rem,2.4vw,1.75rem)}
.section-head p{font-size:14px;color:var(--text-3);margin-top:8px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:all .4s var(--ease);
}
.card:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--paper-2)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.card:hover .card-cover img{transform:scale(1.03)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body h3 a{color:var(--ink-deep)}
.card-body p{font-size:14px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-3);margin-top:auto;padding-top:8px}
.card-meta .tag{font-size:12px;color:var(--bronze);border:1px solid rgba(169,138,91,.5);border-radius:var(--r-pill);padding:2px 10px}

/* ============ 上下篇 ============ */
.pager{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-bottom:72px}
.pager-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 22px;transition:all .3s var(--ease);min-width:0;
}
.pager-item:hover{background:var(--paper-2);border-color:var(--ink)}
.pager-item span.label{display:block;font-size:12px;color:var(--bronze);letter-spacing:.1em;margin-bottom:8px}
.pager-item strong{display:block;font-size:15.5px;font-weight:600;color:var(--ink-deep);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pager-item.next{text-align:right}

/* ============ CTA 条 ============ */
.cta-band{background:var(--ink-deep);color:#fff;padding:56px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:clamp(1.3rem,2.4vw,1.7rem);margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.7);font-size:15px;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding:64px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand .brand-main{color:#fff}
.footer-brand .brand-sub{color:var(--bronze)}
.footer-brand p{margin-top:18px;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;font-family:var(--font-sans);font-weight:600;letter-spacing:.04em}
.footer-col ul li{margin-bottom:12px;font-size:13.5px;color:rgba(255,255,255,.62)}
.footer-col ul a{color:rgba(255,255,255,.72)}
.footer-col ul a:hover{color:var(--cinnabar)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:22px;font-size:12.5px;color:rgba(255,255,255,.55)}
.footer-bottom a{color:rgba(255,255,255,.55)}
.footer-bottom a:hover{color:#fff}

/* ============ 动效与响应式 ============ */
.reveal{opacity:0;transform:translateY(12px);animation:rise .6s var(--ease) forwards}
@keyframes rise{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,760px);justify-content:center}
  .article-side{display:none}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .nav-toggle{display:flex}
  .nav-menu{
    position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);
    background:var(--paper);flex-direction:column;justify-content:flex-start;align-items:stretch;
    gap:0;padding:88px 28px 28px;border-left:1px solid var(--line);
    transform:translateX(102%);transition:transform .38s var(--ease);z-index:80;
    box-shadow:-14px 0 40px -20px rgba(20,32,31,.35);overflow-y:auto;
  }
  .nav-menu.is-open{transform:translateX(0)}
  .nav-menu ul{flex-direction:column;align-items:stretch;gap:0}
  .nav-menu ul li{border-bottom:1px solid var(--line)}
  .nav-menu ul a{font-size:18px;padding:16px 0;display:block}
  .nav-menu ul a::after{display:none}
  .nav-menu ul a.active{color:var(--cinnabar)}
  .nav-cta{display:none}
  .nav-cta-mobile{display:block;margin-top:28px}
  .nav-cta-mobile .btn-solid{width:100%}
  .nav-backdrop{position:fixed;inset:0;background:rgba(20,32,31,.4);opacity:0;visibility:hidden;transition:opacity .3s var(--ease);z-index:70}
  .nav-backdrop.is-open{opacity:1;visibility:visible}
  .article-body{padding:36px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .topbar-tip,.topbar-links a:not(.accent){display:none}
  .mainnav-inner{min-height:64px}
  .brand-main{font-size:19px}
  .inner-head{padding:28px 0 34px}
  .article-wrap{padding:40px 0 48px}
  .article-body{padding:26px 20px;border-radius:var(--r-sm)}
  .article-body p{font-size:16px}
  .article-body h2{font-size:21px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .card-grid{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr;margin-bottom:52px}
  .pager-item.next{text-align:left}
  .cta-band{padding:44px 0}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:32px}
  .related{padding-bottom:56px}
}
@media (max-width:520px){
  .inner-head h1{font-size:1.5rem}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn-solid,.cta-actions .btn-outline-ink{width:100%}
  .article-foot{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --ink:#14201F;
  --ink-2:#4A5A58;
  --ink-3:#8A9795;
  --brand:#1F3D3A;
  --brand-deep:#142C2A;
  --accent:#C0442E;
  --accent-dark:#A63A26;
  --copper:#A98A5B;
  --paper:#F7F4ED;
  --paper-2:#EFEAE0;
  --white:#FFFFFF;
  --line:rgba(20,32,31,.12);
  --line-strong:rgba(20,32,31,.26);
  --ok:#2F6B4F;
  --warn:#B8791F;
  --r-sm:8px;
  --r-card:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,32,31,.04), 0 12px 32px -12px rgba(20,32,31,.10);
  --sh-2:0 2px 6px rgba(20,32,31,.06), 0 22px 46px -18px rgba(20,32,31,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --bs-primary:#1F3D3A;
  --bs-body-font-family:var(--sans);
  --bs-body-color:#14201F;
  --bs-border-color:rgba(20,32,31,.12);
  --bs-link-color:#1F3D3A;
  --bs-link-hover-color:#C0442E;
  --bs-link-decoration:none;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--accent)}
button{font-family:inherit}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;color:var(--ink);letter-spacing:-.01em;margin:0;line-height:1.22}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(192,68,46,.16)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){
  .container{max-width:1320px;padding-left:32px;padding-right:32px}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px}
}

/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--brand-deep);
  color:rgba(255,255,255,.72);
  font-size:13px;
  line-height:1.6;
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:38px;
  padding-top:6px;
  padding-bottom:6px;
}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0}
.topbar-domain{
  font-weight:600;
  color:rgba(255,255,255,.92);
  letter-spacing:.06em;
  white-space:nowrap;
}
.topbar-note{
  color:rgba(255,255,255,.55);
  padding-left:12px;
  border-left:1px solid rgba(255,255,255,.16);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar-links{display:flex;align-items:center;gap:20px;white-space:nowrap}
.topbar-links a{color:rgba(255,255,255,.72);font-size:13px}
.topbar-links a:hover{color:#fff}
.topbar-links a.accent{color:#E4A18F}
.topbar-links a.accent:hover{color:#fff}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(247,244,237,.97);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-stuck{
  border-bottom-color:var(--line);
  box-shadow:0 8px 24px -20px rgba(20,32,31,.45);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:74px;
}
.brand{
  display:flex;
  flex-direction:column;
  justify-content:center;
  line-height:1.15;
  flex:0 0 auto;
  text-decoration:none;
}
.brand-main{
  font-family:var(--serif);
  font-size:21px;
  font-weight:800;
  color:var(--brand-deep);
  letter-spacing:.04em;
}
.brand-sub{
  font-size:12px;
  color:var(--copper);
  letter-spacing:.34em;
  margin-top:2px;
}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center}
.main-nav .nav-link{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  white-space:nowrap;
  background:none;
  border:0;
}
.main-nav .nav-link::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:0;
  height:2px;
  background:transparent;
  transition:background .3s var(--ease);
}
.main-nav .nav-link:hover{color:var(--brand)}
.main-nav .nav-link.active{color:var(--brand);font-weight:600}
.main-nav .nav-link.active::after{background:var(--accent)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--white);
  padding:0;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.nav-toggle span{
  display:block;
  width:18px;height:1.6px;
  background:var(--brand);
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.nav-toggle:hover{border-color:var(--brand)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}

/* 移动端抽屉 */
.nav-mask{
  position:fixed;
  inset:0;
  background:rgba(20,32,31,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity .3s var(--ease),visibility .3s var(--ease);
  z-index:1040;
}
.nav-mask.is-open{opacity:1;visibility:visible}
.mobile-panel{
  position:fixed;
  top:0;right:0;bottom:0;
  width:min(86vw,360px);
  background:var(--paper);
  border-left:1px solid var(--line);
  z-index:1050;
  transform:translateX(102%);
  transition:transform .36s var(--ease);
  display:flex;
  flex-direction:column;
  padding:22px 20px 24px;
  overflow-y:auto;
}
.mobile-panel.is-open{transform:translateX(0)}
.mobile-panel .panel-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
  margin-bottom:6px;
}
.panel-close{
  width:38px;height:38px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:transparent;
  color:var(--ink-2);
  cursor:pointer;
  font-size:16px;
  line-height:1;
}
.panel-close:hover{border-color:var(--brand);color:var(--brand)}
.mobile-panel nav{display:flex;flex-direction:column}
.mobile-panel nav a{
  display:block;
  padding:15px 2px;
  font-size:17px;
  font-weight:500;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-panel nav a:hover{padding-left:6px;color:var(--accent)}
.mobile-panel nav a.active{color:var(--accent);font-weight:600}
.mobile-panel .panel-foot{margin-top:auto;padding-top:24px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  cursor:pointer;
  text-align:center;
  transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.btn i{font-size:14px}
.btn-primary{
  --bs-btn-bg:var(--accent);
  --bs-btn-border-color:var(--accent);
  --bs-btn-color:#FFFFFF;
  --bs-btn-hover-bg:var(--accent-dark);
  --bs-btn-hover-border-color:var(--accent-dark);
  --bs-btn-hover-color:#FFFFFF;
  --bs-btn-active-bg:var(--accent-dark);
  --bs-btn-active-border-color:var(--accent-dark);
  --bs-btn-active-color:#FFFFFF;
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
  box-shadow:0 10px 24px -16px rgba(192,68,46,.85);
}
.btn-primary:hover,.btn-primary:focus{
  background:var(--accent-dark);
  border-color:var(--accent-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 16px 30px -16px rgba(192,68,46,.85);
}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;
  border-color:var(--brand);
  color:var(--brand);
}
.btn-ghost:hover{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  transform:translateY(-2px);
}
.btn-ghost-light{
  background:transparent;
  border-color:rgba(255,255,255,.55);
  color:#fff;
}
.btn-ghost-light:hover{
  background:#fff;
  border-color:#fff;
  color:var(--brand-deep);
  transform:translateY(-2px);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:56px;padding:0 32px;font-size:16px}
.btn-block{width:100%}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:auto;
  padding:0;
  border:0;
  background:none;
  color:var(--brand);
  font-size:15px;
  font-weight:600;
  border-bottom:1px solid rgba(31,61,58,.4);
  padding-bottom:4px;
  border-radius:0;
}
.btn-text:hover{color:var(--accent);border-bottom-color:var(--accent)}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-3);
  padding:22px 0 0;
  flex-wrap:wrap;
}
.crumbs a{color:var(--ink-2)}
.crumbs a:hover{color:var(--accent)}
.crumbs .sep{color:var(--copper)}
.crumbs .cur{color:var(--ink);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 页面头 ============ */
.page-hero{
  background:var(--paper-2);
  border-bottom:1px solid var(--line);
  padding-bottom:64px;
}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.22em;
  color:var(--copper);
  padding:5px 12px;
  border:1px solid rgba(169,138,91,.45);
  border-radius:var(--r-pill);
  margin-bottom:18px;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:56px;
  align-items:start;
  padding-top:28px;
}
.page-hero h1{
  font-size:clamp(2.1rem,4.4vw,3.2rem);
  line-height:1.2;
  margin-bottom:18px;
}
.hero-lead{
  font-size:17px;
  color:var(--ink-2);
  line-height:1.9;
  max-width:640px;
  margin-bottom:28px;
}
.check-list{display:flex;flex-direction:column;gap:2px;margin-bottom:32px}
.check-list li{
  display:flex;
  gap:14px;
  padding:14px 0;
  border-top:1px solid var(--line);
}
.check-list li:last-child{border-bottom:1px solid var(--line)}
.check-mark{
  flex:0 0 22px;
  height:22px;
  margin-top:5px;
  border-radius:50%;
  border:1px solid rgba(169,138,91,.6);
  color:var(--copper);
  font-size:11px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.check-body strong{
  display:block;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:2px;
}
.check-body span{font-size:14px;color:var(--ink-2);line-height:1.75}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-visual{position:relative}
.ratio-16-10{position:relative;padding-top:62.5%;overflow:hidden;border-radius:var(--r-img);background:var(--paper)}
.ratio-16-9{position:relative;padding-top:56.25%;overflow:hidden;border-radius:var(--r-img) var(--r-img) 0 0;background:var(--paper-2)}
.ratio-16-10>img,.ratio-16-9>img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.hero-visual .ratio-16-10{
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.meta-line{
  display:flex;
  flex-wrap:wrap;
  gap:8px 18px;
  font-size:13px;
  color:var(--ink-3);
  padding:14px 2px 0;
}
.meta-line span{display:flex;align-items:center;gap:7px}
.meta-line span::before{
  content:"";
  width:5px;height:5px;
  border-radius:50%;
  background:var(--copper);
  flex:0 0 5px;
}
.meta-line span:first-child::before{background:var(--ok)}

/* 锚点导航条 */
.anchor-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:44px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.anchor-bar a{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  font-size:14px;
  color:var(--ink-2);
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:all .25s var(--ease);
}
.anchor-bar a:hover{
  border-color:var(--brand);
  color:var(--brand);
  transform:translateY(-2px);
}
.anchor-bar a i{font-size:12px;margin-right:6px;color:var(--copper)}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{
  font-size:clamp(1.65rem,3vw,2.25rem);
  margin-bottom:14px;
}
.section-head p{font-size:16px;color:var(--ink-2);line-height:1.9}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.2em;
  color:var(--copper);
  margin-bottom:14px;
}
.section-tag::before{
  content:"";
  width:28px;height:2px;
  background:var(--copper);
}

/* ============ 规格条 ============ */
.spec-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:32px;
}
.spec-col{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px 28px 22px;
}
.spec-col-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:18px;
  border-bottom:1px solid var(--line);
  margin-bottom:6px;
}
.spec-col-head h3{font-size:19px}
.spec-col-head span{font-size:12px;color:var(--copper);letter-spacing:.12em}
.spec-list li{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:20px;
  padding:13px 0;
  border-bottom:1px solid var(--line);
  font-size:15px;
}
.spec-list li:last-child{border-bottom:0}
.spec-list .k{color:var(--ink);font-weight:600;flex:0 0 auto}
.spec-list .v{color:var(--ink-2);text-align:right}
.spec-note{
  font-size:12.5px;
  color:var(--ink-3);
  margin-top:18px;
  text-align:right;
}

/* ============ 卡片网格 ============ */
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:26px;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),transform .3s var(--ease);
}
.card:hover{
  border-color:var(--brand);
  box-shadow:var(--sh-2);
  transform:translateY(-2px);
}
.card-body{padding:22px 22px 26px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-body h3{font-size:18px;line-height:1.4}
.card-body p{font-size:14.5px;color:var(--ink-2);line-height:1.85}
.badge-tag{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  height:26px;
  padding:0 12px;
  font-size:12px;
  font-weight:500;
  color:var(--copper);
  border:1px solid rgba(169,138,91,.5);
  border-radius:var(--r-pill);
  letter-spacing:.04em;
}
.card-index{
  font-family:var(--serif);
  font-size:13px;
  color:var(--copper);
  letter-spacing:.12em;
}

/* ============ 时间轴 ============ */
.timeline{position:relative;max-width:900px}
.timeline::before{
  content:"";
  position:absolute;
  left:23px;
  top:14px;
  bottom:14px;
  width:1px;
  background:var(--line);
}
.tl-item{position:relative;padding:0 0 34px 72px}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  position:absolute;
  left:0;top:0;
  width:48px;height:48px;
  border-radius:50%;
  background:var(--white);
  border:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--serif);
  font-size:16px;
  font-weight:700;
  color:var(--copper);
  transition:border-color .3s var(--ease),color .3s var(--ease);
}
.tl-item:hover .tl-num{border-color:var(--brand);color:var(--accent)}
.tl-body{padding-top:4px}
.tl-body h3{font-size:18px;margin-bottom:8px}
.tl-body p{font-size:15px;color:var(--ink-2);line-height:1.88;max-width:700px}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.accordion{
  --bs-accordion-border-width:0;
  --bs-accordion-bg:transparent;
  --bs-accordion-border-color:transparent;
  --bs-accordion-btn-focus-border-color:transparent;
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-border-radius:0;
  --bs-accordion-inner-border-radius:0;
  --bs-accordion-active-bg:transparent;
  --bs-accordion-active-color:var(--brand);
}
.accordion-item{
  background:transparent;
  border:0;
  border-top:1px solid var(--line);
}
.accordion-item:last-child{border-bottom:1px solid var(--line)}
.accordion-button{
  display:flex;
  align-items:center;
  gap:18px;
  width:100%;
  background:transparent;
  border:0;
  box-shadow:none;
  padding:22px 4px;
  font-family:var(--serif);
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  text-align:left;
  line-height:1.6;
  transition:color .25s var(--ease);
}
.accordion-button:hover{color:var(--brand)}
.accordion-button:not(.collapsed){color:var(--brand);box-shadow:none;background:transparent}
.accordion-button::after{display:none}
.accordion-button:focus{box-shadow:none;outline:none}
.accordion-button:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.acc-icon{
  position:relative;
  margin-left:auto;
  flex:0 0 16px;
  width:16px;height:16px;
}
.acc-icon::before,.acc-icon::after{
  content:"";
  position:absolute;
  background:var(--copper);
  transition:transform .3s var(--ease),opacity .3s var(--ease),background .3s var(--ease);
}
.acc-icon::before{left:0;top:7.3px;width:16px;height:1.5px}
.acc-icon::after{left:7.3px;top:0;width:1.5px;height:16px}
.accordion-button:not(.collapsed) .acc-icon::after{transform:scaleY(0);opacity:0}
.accordion-button:not(.collapsed) .acc-icon::before{background:var(--accent)}
.accordion-body{
  padding:0 4px 26px;
  font-size:15px;
  color:var(--ink-2);
  line-height:1.9;
  max-width:800px;
}

/* ============ 联系卡 ============ */
.contact-card{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 30px;
  margin-top:36px;
}
.contact-card .cc-text h3{font-size:18px;margin-bottom:8px}
.contact-card .cc-text p{font-size:14.5px;color:var(--ink-2)}
.contact-card .cc-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ CTA 条 ============ */
.cta-band{
  background:var(--brand-deep);
  color:rgba(255,255,255,.86);
  padding:64px 0;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
}
.cta-copy{max-width:640px}
.cta-copy h2{
  color:#fff;
  font-size:clamp(1.5rem,2.6vw,2rem);
  margin-bottom:12px;
}
.cta-copy p{font-size:15px;color:rgba(255,255,255,.72);line-height:1.85}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--brand-deep);
  color:rgba(255,255,255,.7);
  padding:64px 0 0;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.site-footer .brand-main{color:#fff}
.site-footer .brand-sub{color:var(--copper)}
.footer-brand p{
  margin-top:18px;
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.62);
  max-width:320px;
}
.footer-col h4{
  font-family:var(--sans);
  font-size:14px;
  font-weight:600;
  color:#fff;
  letter-spacing:.06em;
  margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col li{font-size:13.5px;color:rgba(255,255,255,.62);line-height:1.7}
.footer-col a{color:rgba(255,255,255,.62);font-size:13.5px}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:12.5px;
  color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.55)}
.footer-bottom a:hover{color:#fff}

/* ============ 入场动效 ============ */
.reveal{
  opacity:0;
  transform:translateY(12px);
  animation:revealUp .55s var(--ease) forwards;
}
.reveal.d1{animation-delay:.08s}
.reveal.d2{animation-delay:.16s}
.reveal.d3{animation-delay:.24s}
@keyframes revealUp{
  to{opacity:1;transform:translateY(0)}
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .main-nav .nav-link{padding:8px 9px;font-size:14px}
  .hero-grid{gap:40px}
}
@media (max-width:991px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn{display:none}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .spec-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px}
  .section{padding:64px 0}
  .topbar-note{display:none}
}
@media (max-width:767px){
  .nav-inner{min-height:66px}
  .brand-main{font-size:19px}
  .page-hero{padding-bottom:48px}
  .hero-grid{padding-top:20px}
  .grid-3{grid-template-columns:1fr}
  .section{padding:48px 0}
  .section-head{margin-bottom:32px}
  .card-body{padding:20px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .hero-actions .btn{flex:1 1 100%}
  .accordion-button{font-size:16px;padding:18px 2px;gap:12px}
  .tl-item{padding-left:62px}
  .tl-num{width:42px;height:42px;font-size:15px}
  .timeline::before{left:20.5px}
  .contact-card{padding:22px}
  .contact-card .cc-actions .btn{width:100%}
}
@media (max-width:575px){
  .topbar-links a:nth-child(n+2){display:none}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .crumbs .cur{max-width:100%}
  .spec-col{padding:24px 20px 18px}
  .spec-list li{flex-direction:column;align-items:flex-start;gap:4px}
  .spec-list .v{text-align:left}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;animation:none}
  .btn:hover,.card:hover,.anchor-bar a:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#1F3D3A;
  --ink-deep:#142C2A;
  --cinnabar:#C0442E;
  --cinnabar-deep:#A5371F;
  --copper:#A98A5B;
  --paper:#F7F4ED;
  --paper-2:#EFEAE0;
  --white:#FFFFFF;
  --text:#14201F;
  --text-2:#4A5A58;
  --text-3:#8A9795;
  --line:rgba(20,32,31,.12);
  --line-strong:rgba(20,32,31,.2);
  --ok:#2F6B4F;
  --warn:#B8791F;
  --r-btn:8px;
  --r-card:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(20,32,31,.04), 0 12px 32px -12px rgba(20,32,31,.10);
  --sh-2:0 2px 4px rgba(20,32,31,.06), 0 20px 44px -16px rgba(20,32,31,.16);
  --ease:cubic-bezier(.22,.61,.36,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --bs-primary:#1F3D3A;
  --bs-primary-rgb:31,61,58;
  --bs-body-color:#14201F;
  --bs-body-bg:#F7F4ED;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink);text-decoration:none;transition:color .3s var(--ease),border-color .3s var(--ease);}
a:hover{color:var(--cinnabar);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{
  font-family:var(--serif);
  font-weight:700;
  line-height:1.22;
  letter-spacing:-.01em;
  color:var(--ink-deep);
  margin:0;
}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cinnabar);outline-offset:2px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1400px){
  .container{max-width:1320px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
}

.section{padding:96px 0;}
.section-sm{padding:64px 0;}
@media (max-width:991px){
  .section{padding:72px 0;}
  .section-sm{padding:52px 0;}
}
@media (max-width:575px){
  .section{padding:48px 0;}
  .section-sm{padding:40px 0;}
}

.section-head{margin-bottom:48px;max-width:780px;}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.16em;
  color:var(--copper);
  margin-bottom:14px;
  text-transform:uppercase;
}
.section-head .eyebrow::before{
  content:"";
  width:32px;
  height:2px;
  background:var(--copper);
  display:inline-block;
}
.section-head h2{
  font-size:clamp(1.6rem,3vw,2.25rem);
  margin-bottom:14px;
}
.section-head p{
  color:var(--text-2);
  font-size:16px;
  max-width:760px;
}

/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--ink-deep);
  color:rgba(255,255,255,.72);
  font-size:13px;
  line-height:1;
  min-height:38px;
  display:flex;
  align-items:center;
}
.topbar .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:nowrap;
}
.topbar-left{
  display:flex;
  align-items:center;
  gap:10px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar-left .dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--copper);
  display:inline-block;
  flex:0 0 auto;
}
.topbar-links{
  display:flex;
  align-items:center;
  gap:22px;
  white-space:nowrap;
}
.topbar-links a{
  color:rgba(255,255,255,.72);
  font-size:13px;
}
.topbar-links a:hover{color:#fff;}
.topbar-links a.accent{color:var(--cinnabar);font-weight:600;}
.topbar-links a.accent:hover{color:#E0705A;}
@media (max-width:767px){
  .topbar-links a:not(.accent){display:none;}
  .topbar-links{gap:0;}
}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(247,244,237,.96);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-stuck{
  border-bottom-color:var(--line);
  box-shadow:0 6px 24px -16px rgba(20,32,31,.28);
}
.nav-inner{
  min-height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:flex;
  flex-direction:column;
  line-height:1.1;
  flex:0 0 auto;
}
.brand-main{
  font-family:var(--serif);
  font-size:21px;
  font-weight:700;
  color:var(--ink-deep);
  letter-spacing:.02em;
}
.brand-sub{
  font-size:11px;
  letter-spacing:.28em;
  color:var(--copper);
  margin-top:3px;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:34px;
}
.nav-menu a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  padding:6px 0;
}
.nav-menu a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-2px;
  height:2px;
  background:var(--cinnabar);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav-menu a:hover{color:var(--ink);}
.nav-menu a:hover::after{transform:scaleX(1);}
.nav-menu a.active{color:var(--ink-deep);font-weight:600;}
.nav-menu a.active::after{transform:scaleX(1);}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:42px;
  padding:0 22px;
  border-radius:var(--r-btn);
  background:var(--cinnabar);
  color:#fff;
  font-size:15px;
  font-weight:600;
  border:1px solid var(--cinnabar);
  transition:background .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease);
  white-space:nowrap;
}
.nav-cta:hover{
  background:var(--cinnabar-deep);
  border-color:var(--cinnabar-deep);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--sh-1);
}
.nav-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  background:transparent;
  border:1px solid var(--line-strong);
  border-radius:var(--r-btn);
  color:var(--ink);
  font-size:18px;
  cursor:pointer;
}
@media (max-width:991px){
  .nav-menu{
    position:fixed;
    top:0;
    right:0;
    bottom:0;
    width:min(86vw,360px);
    background:var(--white);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:88px 24px 32px;
    box-shadow:-20px 0 48px -24px rgba(20,32,31,.4);
    transform:translateX(102%);
    transition:transform .38s var(--ease);
    overflow-y:auto;
    z-index:1040;
  }
  .nav-menu.open{transform:translateX(0);}
  .nav-menu a{
    font-size:18px;
    padding:18px 0;
    border-bottom:1px solid var(--line);
  }
  .nav-menu a::after{display:none;}
  .nav-menu a.active{color:var(--cinnabar);}
  .nav-mask{
    position:fixed;
    inset:0;
    background:rgba(20,32,31,.42);
    opacity:0;
    visibility:hidden;
    transition:opacity .3s var(--ease),visibility .3s var(--ease);
    z-index:1035;
  }
  .nav-mask.open{opacity:1;visibility:visible;}
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .nav-drawer-cta{
    display:inline-flex !important;
    margin-top:24px;
    height:48px;
    width:100%;
  }
}
@media (min-width:992px){
  .nav-drawer-cta{display:none !important;}
  .nav-mask{display:none;}
}

/* ============ 面包屑 ============ */
.breadcrumb-bar{
  background:var(--paper-2);
  border-bottom:1px solid var(--line);
  padding:16px 0;
  font-size:13px;
  color:var(--text-3);
}
.breadcrumb-bar ol{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
}
.breadcrumb-bar li{
  display:flex;
  align-items:center;
  gap:8px;
}
.breadcrumb-bar li:not(:last-child)::after{
  content:"/";
  color:var(--copper);
}
.breadcrumb-bar a{color:var(--text-2);}
.breadcrumb-bar a:hover{color:var(--cinnabar);}
.breadcrumb-bar .current{color:var(--ink-deep);font-weight:600;}

/* ============ 通用按钮 ============ */
.btn-nl{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease);
  white-space:nowrap;
}
.btn-nl-primary{
  background:var(--cinnabar);
  border-color:var(--cinnabar);
  color:#fff;
}
.btn-nl-primary:hover{
  background:var(--cinnabar-deep);
  border-color:var(--cinnabar-deep);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--sh-1);
}
.btn-nl-primary:active{transform:translateY(0);}
.btn-nl-outline{
  background:transparent;
  border-color:var(--ink);
  color:var(--ink);
}
.btn-nl-outline:hover{
  background:var(--ink);
  color:#fff;
  transform:translateY(-2px);
}
.btn-nl-outline:active{transform:translateY(0);}
.btn-nl-light{
  background:transparent;
  border-color:rgba(255,255,255,.6);
  color:#fff;
}
.btn-nl-light:hover{
  background:#fff;
  color:var(--ink-deep);
  border-color:#fff;
  transform:translateY(-2px);
}
.btn-nl-lg{height:58px;padding:0 34px;font-size:16px;}
.btn-link-nl{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  border-bottom:1px solid var(--line-strong);
  padding-bottom:2px;
}
.btn-link-nl:hover{color:var(--cinnabar);border-bottom-color:var(--cinnabar);}

/* ============ Hero ============ */
.cat-hero{
  position:relative;
  padding:72px 0 64px;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  top:-120px;
  right:-160px;
  width:520px;
  height:520px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(169,138,91,.16), rgba(169,138,91,0) 68%);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:64px;
  align-items:center;
  position:relative;
  z-index:1;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:10px;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid var(--copper);
  color:var(--copper);
  font-size:12px;
  letter-spacing:.12em;
  margin-bottom:22px;
}
.cat-hero h1{
  font-size:clamp(2.1rem,4.6vw,3.4rem);
  line-height:1.16;
  margin-bottom:22px;
}
.cat-hero h1 em{
  font-style:normal;
  color:var(--cinnabar);
}
.hero-sub{
  font-size:17px;
  line-height:1.85;
  color:var(--text-2);
  max-width:600px;
  margin-bottom:28px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--text-3);
  padding:16px 0 0;
  border-top:1px solid var(--line);
}
.hero-meta span{
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.hero-meta span + span::before{
  content:"";
  width:4px;
  height:4px;
  border-radius:50%;
  background:var(--copper);
  display:inline-block;
  margin-right:8px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:30px;
}
.hero-figure{
  position:relative;
}
.hero-figure .ratio{
  aspect-ratio:16/10;
  border-radius:var(--r-img);
  overflow:hidden;
  box-shadow:var(--sh-1);
  border:1px solid var(--line);
}
.hero-figure img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.hero-figure .float-card{
  position:absolute;
  left:-18px;
  bottom:-24px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:16px 20px;
  box-shadow:var(--sh-1);
  min-width:176px;
}
.hero-figure .float-card .num{
  font-family:var(--serif);
  font-size:26px;
  font-weight:700;
  color:var(--ink-deep);
  line-height:1.1;
}
.hero-figure .float-card .lbl{
  font-size:12px;
  color:var(--text-3);
  margin-top:4px;
}
@media (max-width:991px){
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .cat-hero{padding:52px 0 48px;}
  .hero-figure .float-card{left:auto;right:12px;bottom:-18px;padding:12px 16px;min-width:150px;}
  .hero-figure .float-card .num{font-size:22px;}
}

/* ============ 下载包卡片 ============ */
.pkg-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
@media (max-width:991px){
  .pkg-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:575px){
  .pkg-grid{grid-template-columns:1fr;}
}
.pkg-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px 28px;
  display:flex;
  flex-direction:column;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),transform .3s var(--ease);
}
.pkg-card:hover{
  border-color:var(--ink);
  box-shadow:var(--sh-2);
  transform:translateY(-2px);
}
.pkg-card .pkg-icon{
  width:44px;
  height:44px;
  border-radius:var(--r-btn);
  border:1px solid var(--copper);
  color:var(--copper);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  margin-bottom:18px;
}
.pkg-card h3{
  font-size:1.22rem;
  margin-bottom:8px;
}
.pkg-card .pkg-desc{
  font-size:14px;
  color:var(--text-2);
  line-height:1.75;
  min-height:48px;
  margin-bottom:18px;
}
.pkg-spec{
  border-top:1px solid var(--line);
  padding-top:14px;
  margin-bottom:22px;
}
.pkg-spec li{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  font-size:13px;
  padding:7px 0;
  border-bottom:1px solid var(--line);
}
.pkg-spec li:last-child{border-bottom:0;}
.pkg-spec .k{color:var(--text-2);font-weight:600;}
.pkg-spec .v{color:var(--text-3);text-align:right;}
.pkg-card .btn-nl{margin-top:auto;width:100%;}

/* ============ 时间轴 ============ */
.timeline-wrap{
  background:var(--paper-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.timeline{
  position:relative;
  max-width:1040px;
  margin:0 auto;
}
.timeline::before{
  content:"";
  position:absolute;
  top:8px;
  bottom:8px;
  left:50%;
  width:1px;
  background:var(--line);
  transform:translateX(-50%);
}
.tl-item{
  display:grid;
  grid-template-columns:1fr 132px 1fr;
  align-items:start;
  margin-bottom:44px;
}
.tl-item:last-child{margin-bottom:0;}
.tl-axis{
  grid-column:2;
  text-align:center;
  position:relative;
  padding-top:6px;
}
.tl-axis .num{
  font-family:var(--serif);
  font-size:30px;
  font-weight:700;
  color:var(--copper);
  line-height:1;
  display:block;
}
.tl-axis .dot{
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--cinnabar);
  display:block;
  margin:14px auto 0;
  position:relative;
  z-index:1;
  box-shadow:0 0 0 6px var(--paper-2);
}
.tl-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 28px;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.tl-card:hover{border-color:var(--ink);box-shadow:var(--sh-1);}
.tl-card h3{
  font-size:1.15rem;
  margin-bottom:10px;
}
.tl-card p{
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.85;
}
.tl-card .tl-note{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:14px;
  font-size:12.5px;
  color:var(--copper);
  border:1px solid rgba(169,138,91,.5);
  border-radius:999px;
  padding:3px 12px;
}
.tl-item:nth-child(odd) .tl-card{grid-column:1;}
.tl-item:nth-child(odd) .tl-spacer{grid-column:3;}
.tl-item:nth-child(even) .tl-card{grid-column:3;}
.tl-item:nth-child(even) .tl-spacer{grid-column:1;}
@media (max-width:767px){
  .timeline::before{left:19px;transform:none;}
  .tl-item{grid-template-columns:40px 1fr;margin-bottom:32px;}
  .tl-axis{grid-column:1;text-align:left;padding-top:0;}
  .tl-axis .num{font-size:18px;}
  .tl-axis .dot{margin:10px 0 0 0;}
  .tl-item:nth-child(odd) .tl-card,
  .tl-item:nth-child(even) .tl-card{grid-column:2;grid-row:1;}
  .tl-item .tl-spacer{display:none;}
  .tl-card{padding:20px 20px;}
}

/* ============ 规格/Tab ============ */
.spec-panel{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.spec-tabs{
  display:flex;
  border-bottom:1px solid var(--line);
  background:var(--paper-2);
}
.spec-tabs button{
  flex:1;
  border:0;
  background:transparent;
  padding:18px 12px;
  font-family:var(--serif);
  font-size:16px;
  font-weight:600;
  color:var(--text-2);
  cursor:pointer;
  position:relative;
  transition:color .3s var(--ease),background .3s var(--ease);
}
.spec-tabs button::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  background:var(--cinnabar);
  transform:scaleX(0);
  transition:transform .3s var(--ease);
}
.spec-tabs button:hover{color:var(--ink-deep);}
.spec-tabs button.active{
  color:var(--ink-deep);
  background:var(--white);
}
.spec-tabs button.active::after{transform:scaleX(1);}
.spec-body{padding:12px 28px 20px;}
.spec-pane{display:none;}
.spec-pane.active{display:block;animation:fadeUp .45s var(--ease);}
.spec-row{
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  gap:24px;
  padding:15px 0;
  border-bottom:1px solid var(--line);
}
.spec-row:last-child{border-bottom:0;}
.spec-row .k{
  font-size:15px;
  font-weight:600;
  color:var(--ink-deep);
}
.spec-row .v{
  font-size:14.5px;
  color:var(--text-2);
  text-align:right;
}
.spec-updated{
  font-size:12.5px;
  color:var(--text-3);
  text-align:right;
  padding:12px 28px 18px;
  border-top:1px dashed var(--line);
}
@media (max-width:575px){
  .spec-body{padding:6px 18px 16px;}
  .spec-row{flex-direction:column;gap:4px;}
  .spec-row .v{text-align:left;}
  .spec-updated{padding:12px 18px 16px;text-align:left;}
}

@keyframes fadeUp{
  from{opacity:0;transform:translateY(12px);}
  to{opacity:1;transform:translateY(0);}
}

/* ============ 校验要点（错位网格） ============ */
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
@media (max-width:767px){
  .check-grid{grid-template-columns:1fr;}
}
.check-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:32px 30px;
  position:relative;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.check-card:hover{border-color:var(--ink);box-shadow:var(--sh-1);}
.check-card .idx{
  font-family:var(--serif);
  font-size:34px;
  font-weight:700;
  color:var(--copper);
  line-height:1;
  display:block;
  margin-bottom:16px;
  transition:color .3s var(--ease);
}
.check-card:hover .idx{color:var(--cinnabar);}
.check-card h3{
  font-size:1.1rem;
  margin-bottom:10px;
}
.check-card p{
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.85;
}
.check-grid .check-card:nth-child(2){transform:translateY(24px);}
.check-grid .check-card:nth-child(4){transform:translateY(24px);}
@media (max-width:767px){
  .check-grid .check-card:nth-child(2),
  .check-grid .check-card:nth-child(4){transform:none;}
}

/* ============ 引用块 ============ */
.quote-block{
  border-left:2px solid var(--copper);
  background:var(--paper-2);
  border-radius:0 var(--r-card) var(--r-card) 0;
  padding:22px 28px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.9;
  max-width:820px;
}
.quote-block strong{color:var(--ink-deep);}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;}
.accordion-nl .accordion-item{
  background:transparent;
  border:0;
  border-top:1px solid var(--line);
  border-radius:0;
}
.accordion-nl .accordion-item:last-child{border-bottom:1px solid var(--line);}
.accordion-nl .accordion-button{
  background:transparent;
  border:0;
  box-shadow:none;
  padding:22px 44px 22px 0;
  font-family:var(--serif);
  font-size:17px;
  font-weight:600;
  color:var(--ink-deep);
  line-height:1.5;
  border-radius:0 !important;
  position:relative;
}
.accordion-nl .accordion-button:hover{color:var(--cinnabar);}
.accordion-nl .accordion-button:not(.collapsed){color:var(--ink-deep);}
.accordion-nl .accordion-button::after{
  content:"";
  position:absolute;
  right:8px;
  top:50%;
  width:14px;
  height:14px;
  margin:0;
  transform:translateY(-50%);
  background:none;
  border-right:1.5px solid var(--copper);
  border-bottom:1.5px solid var(--copper);
  transition:transform .3s var(--ease);
  rotate:45deg;
}
.accordion-nl .accordion-button:not(.collapsed)::after{
  rotate:225deg;
  border-color:var(--cinnabar);
}
.accordion-nl .accordion-button:focus{box-shadow:none;outline:none;}
.accordion-nl .accordion-button:focus-visible{
  outline:2px solid var(--cinnabar);
  outline-offset:2px;
}
.accordion-nl .accordion-body{
  padding:0 44px 26px 0;
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
}

/* ============ CTA ============ */
.cta-band{
  background:var(--ink-deep);
  color:#fff;
  border-radius:var(--r-card);
  padding:48px 52px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;
  top:-80px;
  width:280px;
  height:280px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(169,138,91,.28), rgba(169,138,91,0) 70%);
}
.cta-band .cta-text{position:relative;z-index:1;}
.cta-band h2{
  color:#fff;
  font-size:clamp(1.4rem,2.4vw,1.9rem);
  margin-bottom:12px;
}
.cta-band p{
  color:rgba(255,255,255,.72);
  font-size:15px;
  max-width:620px;
}
.cta-band .cta-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  position:relative;
  z-index:1;
}
@media (max-width:991px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-deep);
  color:rgba(255,255,255,.72);
  padding:72px 0 28px;
  font-size:14px;
  line-height:1.8;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:48px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand .brand-main{color:#fff;}
.footer-brand .brand-sub{color:var(--copper);}
.footer-brand p{
  margin-top:18px;
  font-size:13.5px;
  color:rgba(255,255,255,.6);
  max-width:340px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  margin-bottom:18px;
  font-family:var(--serif);
  letter-spacing:.02em;
}
.footer-col ul li{
  margin-bottom:11px;
  font-size:13.5px;
  color:rgba(255,255,255,.6);
}
.footer-col ul li a{
  color:rgba(255,255,255,.66);
}
.footer-col ul li a:hover{color:#fff;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:24px;
  font-size:12.5px;
  color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.62);}
.footer-bottom a:hover{color:#fff;}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding:52px 0 24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* 入场动效 */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .55s var(--ease),transform .55s var(--ease);
}
.reveal.is-in{opacity:1;transform:translateY(0);}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --ink:#1F3D3A;
  --ink-deep:#142C2A;
  --ink-soft:#2C5450;
  --cinnabar:#C0442E;
  --cinnabar-dark:#A83925;
  --bronze:#A98A5B;
  --paper:#F7F4ED;
  --paper-2:#EFEAE0;
  --white:#FFFFFF;
  --text:#14201F;
  --text-2:#4A5A58;
  --text-3:#8A9795;
  --line:rgba(20,32,31,.12);
  --line-strong:rgba(20,32,31,.24);
  --ok:#2F6B4F;
  --warn:#B8791F;
  --r-btn:8px;
  --r-card:10px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(20,32,31,.04), 0 12px 32px -12px rgba(20,32,31,.10);
  --shadow-2:0 2px 4px rgba(20,32,31,.06), 0 22px 46px -18px rgba(20,32,31,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --bs-body-font-family:var(--font-sans);
  --bs-primary:#1F3D3A;
}

*,*::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:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none;transition:color .3s var(--ease)}
a:hover{color:var(--cinnabar)}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;letter-spacing:-.01em;line-height:1.25;color:var(--text);margin:0}
p{margin:0 0 16px}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--cinnabar);outline-offset:2px}

.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
@media (min-width:1400px){.container{max-width:1320px}}

/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--ink-deep);
  color:rgba(255,255,255,.78);
  font-size:13px;
  line-height:1.6;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:38px;
}
.topbar-left{display:flex;align-items:center;gap:12px;white-space:nowrap}
.topbar-domain{color:var(--bronze);letter-spacing:.06em;font-weight:600}
.topbar-sep{width:1px;height:12px;background:rgba(255,255,255,.22)}
.topbar-note{color:rgba(255,255,255,.6)}
.topbar-links{display:flex;align-items:center;gap:22px}
.topbar-links a{color:rgba(255,255,255,.74);font-size:13px}
.topbar-links a:hover{color:#fff}
.topbar-links a.accent{color:#E9A08C}
.topbar-links a.accent:hover{color:#fff}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(247,244,237,.96);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease), box-shadow .3s var(--ease), background .3s var(--ease);
}
.site-header.is-stuck{
  border-bottom-color:var(--line);
  box-shadow:0 6px 24px -18px rgba(20,32,31,.5);
  background:rgba(247,244,237,.99);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:72px;
}
.brand{display:inline-flex;flex-direction:column;line-height:1.14;text-decoration:none}
.brand-main{
  font-family:var(--font-serif);
  font-size:21px;font-weight:800;color:var(--ink);letter-spacing:.02em;
}
.brand-sub{
  font-size:11.5px;letter-spacing:.42em;color:var(--bronze);
  font-weight:600;padding-left:1px;
}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav .nav-link{
  position:relative;
  padding:10px 12px;
  font-size:15px;font-weight:500;
  color:var(--text-2);
  border-radius:6px;
  background:transparent;
  transition:color .3s var(--ease);
}
.main-nav .nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--cinnabar);transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.main-nav .nav-link:hover{color:var(--ink)}
.main-nav .nav-link:hover::after{transform:scaleX(1)}
.main-nav .nav-link.active{color:var(--ink);font-weight:600}
.main-nav .nav-link.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;
  width:42px;height:42px;border:1px solid var(--line-strong);
  border-radius:var(--r-btn);background:transparent;color:var(--ink);
  font-size:17px;cursor:pointer;transition:border-color .3s var(--ease),color .3s var(--ease);
}
.nav-toggle:hover{border-color:var(--ink);color:var(--cinnabar)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .3s var(--ease), color .3s var(--ease),
             border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{
  background:var(--cinnabar);color:#fff;border-color:var(--cinnabar);
  box-shadow:0 10px 24px -16px rgba(192,68,46,.9);
}
.btn-primary:hover{background:var(--cinnabar-dark);border-color:var(--cinnabar-dark);color:#fff;transform:translateY(-2px)}
.btn-outline{
  background:transparent;color:var(--ink);border-color:var(--line-strong);
}
.btn-outline:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-2px)}
.btn-light-outline{
  background:transparent;color:#F2EEE4;border-color:rgba(255,255,255,.4);
}
.btn-light-outline:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.7);transform:translateY(-2px)}
.btn-lg{height:56px;padding:0 32px;font-size:16.5px}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--ink);padding-bottom:2px;
}
.text-link:hover{color:var(--cinnabar);border-bottom-color:var(--cinnabar)}

/* ============ 面包屑 ============ */
.crumb-bar{background:var(--paper-2);border-bottom:1px solid var(--line)}
.crumb-inner{padding:14px 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;font-size:13px;color:var(--text-3)}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--cinnabar)}
.breadcrumb .sep{color:var(--bronze)}
.breadcrumb .current{color:var(--ink);font-weight:600}

/* ============ Hero ============ */
.page-hero{
  background:var(--paper);
  padding:72px 0 80px;
  border-bottom:1px solid var(--line);
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:56px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;letter-spacing:.2em;font-weight:600;
  color:var(--bronze);text-transform:uppercase;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:34px;height:2px;background:var(--bronze);display:block}
.page-hero h1{
  font-size:clamp(2.1rem,4.2vw,3.1rem);
  line-height:1.2;
  margin-bottom:20px;
}
.page-hero h1 em{font-style:normal;color:var(--cinnabar)}
.hero-lead{
  font-size:17.5px;color:var(--text-2);line-height:1.85;
  max-width:640px;margin-bottom:26px;
}
.search-shell{
  display:flex;align-items:center;gap:12px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  padding:0 8px 0 18px;
  height:54px;max-width:520px;
  box-shadow:var(--shadow-1);
  margin-bottom:22px;
}
.search-shell i{color:var(--text-3);font-size:15px}
.search-shell input{
  flex:1;border:0;background:transparent;height:100%;
  font-size:15px;color:var(--text);outline:none;
}
.search-shell input::placeholder{color:var(--text-3)}
.search-shell .fake-btn{
  height:40px;padding:0 20px;border-radius:var(--r-btn);
  background:var(--ink);color:#fff;font-size:14px;font-weight:600;
  display:inline-flex;align-items:center;border:0;cursor:default;
}
.anchor-tags{display:flex;flex-wrap:wrap;gap:10px}
.anchor-tags a{
  display:inline-flex;align-items:center;
  padding:7px 15px;
  font-size:13.5px;color:var(--text-2);
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(255,255,255,.6);
  transition:all .3s var(--ease);
}
.anchor-tags a:hover{border-color:var(--ink);color:var(--ink);background:var(--white)}
.hero-figure{
  position:relative;
  aspect-ratio:16/10;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  background:var(--paper-2);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(31,61,58,.06),rgba(31,61,58,.22));
}
.hero-figure figcaption{
  position:absolute;left:18px;bottom:16px;right:18px;
  font-size:13px;color:rgba(255,255,255,.9);
  z-index:2;
}

/* ============ 通用板块 ============ */
.section{padding:92px 0}
.section-alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-dark{background:var(--ink-deep);color:rgba(255,255,255,.82)}
.section-head{margin-bottom:44px;max-width:760px}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;letter-spacing:.2em;font-weight:600;color:var(--bronze);
  margin-bottom:14px;
}
.section-head .kicker::before{content:"";width:28px;height:2px;background:var(--bronze)}
.section-head h2{font-size:clamp(1.6rem,2.6vw,2.15rem);margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:16px;margin:0;max-width:700px}
.section-dark .section-head h2{color:#fff}
.section-dark .section-head p{color:rgba(255,255,255,.72)}

/* ============ 参数概览条 ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;margin-top:44px;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--white);overflow:hidden;
}
.stat-item{padding:24px 26px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0}
.stat-item .num{
  font-family:var(--font-serif);font-size:26px;font-weight:700;color:var(--ink);
  line-height:1.2;margin-bottom:4px;
}
.stat-item .num span{font-size:14px;color:var(--bronze);margin-left:4px;font-weight:600}
.stat-item .lbl{font-size:13.5px;color:var(--text-3)}

/* ============ 功能模块卡片 ============ */
.feature-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
}
.feature-card{
  display:flex;flex-direction:column;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .3s var(--ease), box-shadow .3s var(--ease), transform .3s var(--ease);
}
.feature-card:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.feature-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--paper-2);border-bottom:1px solid var(--line)}
.feature-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.feature-card:hover .feature-thumb img{transform:scale(1.03)}
.feature-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.tag{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  color:var(--bronze);border:1px solid rgba(169,138,91,.5);
  background:rgba(169,138,91,.07);
  margin-bottom:14px;
}
.feature-body h3{font-size:18.5px;margin-bottom:10px;line-height:1.45}
.feature-body p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin:0}
.feature-path{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--text-3);
}
.feature-path strong{color:var(--ink);font-weight:600}

/* ============ 操作流程时间轴 ============ */
.timeline{position:relative;padding:6px 0 0}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;
  background:var(--line);transform:translateX(-50%);
}
.tl-item{
  position:relative;
  display:grid;grid-template-columns:1fr 90px 1fr;
  align-items:center;margin-bottom:8px;
}
.tl-item:last-child{margin-bottom:0}
.tl-body{
  grid-column:1;
  text-align:right;
  padding:22px 0 22px 0;
}
.tl-item:nth-child(even) .tl-body{grid-column:3;text-align:left}
.tl-marker{
  grid-column:2;grid-row:1;
  display:flex;align-items:center;justify-content:center;
  position:relative;
}
.tl-dot{
  width:9px;height:9px;border-radius:50%;background:var(--cinnabar);
  box-shadow:0 0 0 6px rgba(192,68,46,.10);
}
.tl-num{
  position:absolute;
  font-family:var(--font-serif);font-size:34px;font-weight:700;
  color:rgba(169,138,91,.3);line-height:1;
  top:-44px;
}
.tl-item:nth-child(odd) .tl-num{left:calc(50% + 22px)}
.tl-item:nth-child(even) .tl-num{right:calc(50% + 22px)}
.tl-body h3{font-size:18px;margin-bottom:8px}
.tl-body p{font-size:14.5px;color:var(--text-2);margin:0;max-width:400px;display:inline-block}
.tl-item:nth-child(even) .tl-body p{display:inline-block}

/* ============ 规格说明 ============ */
.spec-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.spec-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 30px;box-shadow:var(--shadow-1);
}
.spec-card h3{
  font-size:17px;margin-bottom:6px;display:flex;align-items:center;gap:10px;
}
.spec-card h3 i{color:var(--bronze);font-size:15px}
.spec-card .spec-note{font-size:13px;color:var(--text-3);margin-bottom:18px}
.spec-row{
  display:flex;align-items:baseline;justify-content:space-between;gap:20px;
  padding:13px 0;border-bottom:1px solid var(--line);
}
.spec-row:last-child{border-bottom:0;padding-bottom:0}
.spec-row .k{font-size:14.5px;font-weight:600;color:var(--text)}
.spec-row .v{font-size:14px;color:var(--text-2);text-align:right}

/* ============ 引用块 ============ */
.quote-block{
  margin:0;padding:26px 30px;
  border-left:2px solid var(--bronze);
  background:var(--white);
  border-radius:0 var(--r-card) var(--r-card) 0;
  box-shadow:var(--shadow-1);
}
.quote-block p{
  font-family:var(--font-serif);font-size:17px;line-height:1.85;color:var(--ink);
  margin:0 0 12px;
}
.quote-block cite{font-style:normal;font-size:13px;color:var(--text-3)}

/* ============ FAQ ============ */
.faq-accordion{border-top:1px solid var(--line)}
.faq-accordion .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0}
.faq-accordion .accordion-header{margin:0}
.faq-accordion .accordion-button{
  position:relative;
  width:100%;
  background:transparent;
  border:0;
  box-shadow:none;
  padding:24px 44px 24px 0;
  font-family:var(--font-serif);
  font-size:17px;font-weight:600;line-height:1.6;
  color:var(--text);
  text-align:left;
  transition:color .3s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--ink);background:transparent;box-shadow:none}
.faq-accordion .accordion-button:hover{color:var(--cinnabar)}
.faq-accordion .accordion-button::after{
  content:"+";
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  background-image:none;
  width:auto;height:auto;
  font-family:var(--font-sans);
  font-size:24px;font-weight:300;line-height:1;
  color:var(--bronze);
  transition:color .3s var(--ease), transform .3s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  content:"–";color:var(--cinnabar);
}
.faq-accordion .accordion-body{
  padding:0 60px 26px 0;
  font-size:15px;line-height:1.9;color:var(--text-2);
}

/* ============ 联系卡 ============ */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:stretch}
.contact-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px 34px;box-shadow:var(--shadow-1);
}
.contact-card h3{font-size:19px;margin-bottom:12px}
.contact-card p{font-size:14.5px;color:var(--text-2);margin-bottom:22px}
.contact-list{display:grid;gap:14px}
.contact-list li{display:flex;align-items:flex-start;gap:12px;font-size:14.5px;color:var(--text-2)}
.contact-list i{color:var(--bronze);margin-top:5px;font-size:14px;width:16px;text-align:center}
.contact-list strong{color:var(--text);font-weight:600}
.contact-aside{
  background:var(--ink);
  color:rgba(255,255,255,.8);
  border-radius:var(--r-card);
  padding:32px 34px;
  display:flex;flex-direction:column;justify-content:space-between;
}
.contact-aside h3{color:#fff;font-size:19px;margin-bottom:12px}
.contact-aside p{font-size:14.5px;color:rgba(255,255,255,.74);margin-bottom:24px}
.contact-aside .aside-meta{font-size:13px;color:rgba(255,255,255,.55);margin-top:20px}

/* ============ CTA 条 ============ */
.cta-band{
  background:var(--paper-2);
  border-top:1px solid var(--line);
  padding:46px 0;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px 36px;
  box-shadow:var(--shadow-1);
}
.cta-inner h3{font-size:20px;margin-bottom:8px}
.cta-inner p{font-size:14.5px;color:var(--text-2);margin:0}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand .brand-main{color:#fff}
.footer-brand .brand-sub{color:var(--bronze)}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px;margin:0}
.footer-col h4{
  font-family:var(--font-sans);
  font-size:14px;font-weight:600;color:#fff;letter-spacing:.06em;
  margin-bottom:18px;
}
.footer-col ul{display:grid;gap:11px}
.footer-col li{font-size:13.8px;color:rgba(255,255,255,.62)}
.footer-col a{color:rgba(255,255,255,.68);font-size:13.8px}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0 26px;font-size:12.5px;color:rgba(255,255,255,.55);
  flex-wrap:wrap;
}
.footer-bottom a{color:rgba(255,255,255,.55)}
.footer-bottom a:hover{color:#fff}

/* ============ 移动端抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,32,31,.5);
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);
  z-index:1050;
}
.drawer-mask.open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);
  background:var(--paper);z-index:1060;
  transform:translateX(100%);
  transition:transform .34s var(--ease);
  display:flex;flex-direction:column;
  border-left:1px solid var(--line);
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 22px;border-bottom:1px solid var(--line);
}
.drawer-close{
  width:38px;height:38px;border:1px solid var(--line-strong);border-radius:var(--r-btn);
  background:transparent;color:var(--ink);font-size:16px;cursor:pointer;
}
.drawer-nav{flex:1;overflow-y:auto;padding:8px 0}
.drawer-nav a{
  display:block;padding:16px 22px;font-size:16.5px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--cinnabar);font-weight:600}
.drawer-foot{padding:20px 22px;border-top:1px solid var(--line)}
.drawer-foot .btn{width:100%}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .main-nav .nav-link{padding:10px 9px;font-size:14.5px}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
  .footer-col:last-child{grid-column:span 3}
}
@media (max-width:991px){
  .container{padding-left:20px;padding-right:20px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .header-actions .btn-primary{display:none}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .page-hero{padding:52px 0 58px}
  .section{padding:64px 0}
  .timeline::before{left:9px}
  .tl-item{grid-template-columns:1fr;padding-left:38px}
  .tl-body,
  .tl-item:nth-child(even) .tl-body{grid-column:1;text-align:left;padding:0 0 26px}
  .tl-marker{position:absolute;left:0;top:6px;grid-column:1}
  .tl-num,
  .tl-item:nth-child(odd) .tl-num,
  .tl-item:nth-child(even) .tl-num{position:static;font-size:22px;margin-right:10px;color:rgba(169,138,91,.5)}
  .tl-marker{justify-content:flex-start;padding-left:4px}
  .spec-columns{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:26px 24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-col:last-child{grid-column:span 2}
}
@media (max-width:767px){
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
  .feature-grid{grid-template-columns:1fr}
  .topbar-links a:not(.accent){display:none}
  .topbar-note{display:none}
  .topbar-sep{display:none}
  .search-shell{height:auto;flex-direction:column;align-items:stretch;padding:14px 16px;gap:10px}
  .search-shell input{height:44px}
  .search-shell .fake-btn{justify-content:center}
  .btn{width:100%}
  .btn.btn-inline{width:auto}
  .header-actions .btn{width:auto}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px}
  .page-hero h1{font-size:1.85rem}
  .hero-lead{font-size:16px}
  .section{padding:52px 0}
  .feature-body{padding:20px 18px 22px}
  .contact-card,.contact-aside{padding:26px 20px}
  .stat-strip{grid-template-columns:1fr}
  .stat-item{border-right:0;border-bottom:1px solid var(--line)}
  .stat-item:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr}
  .footer-col:last-child{grid-column:span 1}
  .faq-accordion .accordion-button{font-size:16px;padding-right:36px}
  .faq-accordion .accordion-body{padding-right:16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category4 */
:root{
  --ink:#1F3D3A;
  --ink-deep:#142C2A;
  --cinnabar:#C0442E;
  --cinnabar-dark:#A9381F;
  --bronze:#A98A5B;
  --paper:#F7F4ED;
  --paper-2:#EFEAE0;
  --white:#FFFFFF;
  --text:#14201F;
  --text-2:#4A5A58;
  --text-3:#8A9795;
  --line:rgba(20,32,31,.12);
  --line-strong:rgba(20,32,31,.24);
  --ok:#2F6B4F;
  --warn:#B8791F;
  --r-btn:8px;
  --r-card:10px;
  --r-img:12px;
  --shadow-sm:0 1px 2px rgba(20,32,31,.04),0 12px 32px -12px rgba(20,32,31,.10);
  --shadow-md:0 2px 4px rgba(20,32,31,.05),0 18px 44px -16px rgba(20,32,31,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::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;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .3s var(--ease);}
a:hover{color:var(--cinnabar);}
button,input{font-family:inherit;}
h1,h2,h3,h4,h5{font-family:var(--font-serif);color:var(--ink-deep);letter-spacing:-.01em;line-height:1.22;margin:0;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:rgba(192,68,46,.16);}
:focus-visible{outline:2px solid var(--cinnabar);outline-offset:2px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-right:24px;padding-left:24px;}
@media (min-width:1400px){.container{max-width:1320px;}}
@media (max-width:767.98px){.container{padding-right:16px;padding-left:16px;}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink-deep);color:rgba(255,255,255,.78);font-size:13px;letter-spacing:.02em;}
.topbar-inner{display:flex;align-items:center;gap:20px;min-height:38px;}
.topbar-domain{color:rgba(255,255,255,.92);font-weight:600;letter-spacing:.06em;}
.topbar-hint{color:rgba(255,255,255,.6);padding-left:18px;border-left:1px solid rgba(255,255,255,.18);}
.topbar-links{margin-left:auto;display:flex;align-items:center;gap:22px;}
.topbar-links a{color:rgba(255,255,255,.74);}
.topbar-links a:hover{color:#fff;}
.topbar-links a.accent{color:var(--bronze);}
.topbar-links a.accent:hover{color:#D9BC8A;}
@media (max-width:767.98px){
  .topbar-hint{display:none;}
  .topbar-links a:not(.accent){display:none;}
}

/* ---------- 主导航 ---------- */
.mainnav{
  position:sticky;top:0;z-index:1030;background:rgba(247,244,237,.96);
  border-bottom:1px solid transparent;transition:box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.mainnav.is-stuck{border-bottom-color:var(--line);box-shadow:0 6px 20px -14px rgba(20,32,31,.34);}
.mainnav-inner{display:flex;align-items:center;gap:28px;min-height:72px;}
.brand{display:flex;flex-direction:column;line-height:1.1;flex-shrink:0;}
.brand-main{font-family:var(--font-serif);font-size:20px;font-weight:800;color:var(--ink-deep);letter-spacing:.02em;}
.brand-sub{font-size:11.5px;letter-spacing:.42em;color:var(--bronze);margin-top:3px;}
.primary-nav{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 0;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--cinnabar);
  transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink-deep);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line-strong);background:transparent;
  border-radius:var(--r-btn);color:var(--ink);font-size:16px;align-items:center;justify-content:center;
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.nav-toggle:hover{border-color:var(--ink);background:var(--paper-2);}
@media (max-width:1199.98px){
  .primary-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions{margin-left:auto;}
}
@media (max-width:575.98px){
  .brand-main{font-size:18px;}
  .brand-sub{letter-spacing:.3em;}
  .mainnav-inner{min-height:64px;gap:14px;}
  .nav-actions .btn-brand{display:none;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.02em;cursor:pointer;
  transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.btn-brand{background:var(--cinnabar);color:#fff;box-shadow:0 10px 24px -14px rgba(192,68,46,.8);}
.btn-brand:hover{background:var(--cinnabar-dark);color:#fff;transform:translateY(-2px);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-quiet{background:transparent;color:var(--ink);padding:0;height:auto;border:0;font-weight:600;}
.btn-quiet span{border-bottom:1px solid var(--ink);padding-bottom:4px;transition:border-color .3s var(--ease),color .3s var(--ease);}
.btn-quiet:hover{color:var(--cinnabar);}
.btn-quiet:hover span{border-color:var(--cinnabar);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-lg{height:58px;padding:0 34px;font-size:16px;}
.btn-light-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-light-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-block{width:100%;}
@media (max-width:575.98px){.btn-block-sm{width:100%;}}

/* ---------- 移动端抽屉 ---------- */
.nav-mask{
  position:fixed;inset:0;background:rgba(20,32,31,.42);opacity:0;visibility:hidden;
  transition:opacity .35s var(--ease),visibility .35s var(--ease);z-index:1070;
}
.nav-mask.open{opacity:1;visibility:visible;}
.mobile-panel{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,352px);background:var(--white);
  transform:translateX(104%);transition:transform .4s var(--ease);z-index:1080;
  padding:26px 24px 90px;overflow-y:auto;box-shadow:-20px 0 50px -24px rgba(20,32,31,.4);
}
.mobile-panel.open{transform:none;}
.mobile-panel-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
.mobile-panel-head .brand-main{font-size:18px;}
.panel-close{width:38px;height:38px;border:1px solid var(--line);border-radius:var(--r-btn);background:transparent;color:var(--ink);}
.panel-close:hover{border-color:var(--ink);}
.mobile-nav{margin-top:10px;}
.mobile-nav a{
  display:flex;align-items:center;justify-content:space-between;
  font-size:18px;font-weight:600;color:var(--ink-deep);padding:18px 0;border-bottom:1px solid var(--line);
}
.mobile-nav a i{font-size:13px;color:var(--text-3);}
.mobile-nav a.active{color:var(--cinnabar);}
.mobile-nav a:hover{color:var(--cinnabar);}
.mobile-panel-foot{margin-top:26px;}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:22px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--cinnabar);}
.crumb .sep{color:var(--bronze);}
.crumb .current{color:var(--ink);font-weight:600;}

/* ---------- 页面头 ---------- */
.page-hero{
  position:relative;padding:56px 0 64px;
  background-image:linear-gradient(180deg,rgba(247,244,237,.95),rgba(239,234,224,.92)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.hero-kicker{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;letter-spacing:.2em;color:var(--bronze);font-weight:600;margin-bottom:18px;}
.hero-kicker::before{content:"";width:34px;height:2px;background:var(--bronze);display:inline-block;}
.page-hero h1{font-size:clamp(2rem,4.2vw,3.05rem);font-weight:800;margin-bottom:20px;}
.hero-lead{font-size:17px;color:var(--text-2);max-width:560px;line-height:1.9;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;font-size:13px;color:var(--text-3);}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}
.hero-meta i{color:var(--bronze);font-size:12px;}
.hero-figure{position:relative;}
.hero-figure .frame{position:relative;border-radius:var(--r-img);overflow:hidden;aspect-ratio:4/3;box-shadow:var(--shadow-sm);border:1px solid var(--line);}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure .tag-float{
  position:absolute;left:-14px;bottom:22px;background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);padding:12px 18px;box-shadow:var(--shadow-sm);
}
.hero-figure .tag-float strong{display:block;font-family:var(--font-serif);font-size:20px;color:var(--ink-deep);}
.hero-figure .tag-float span{font-size:12.5px;color:var(--text-3);}
@media (max-width:991.98px){
  .page-hero{padding:44px 0 52px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-lead{max-width:none;}
  .hero-figure .tag-float{left:16px;bottom:16px;}
}
@media (max-width:575.98px){
  .page-hero{padding:34px 0 42px;}
  .hero-meta{gap:8px 16px;}
}

/* ---------- 锚点导航 ---------- */
.anchor-bar{border-bottom:1px solid var(--line);background:var(--white);}
.anchor-inner{display:flex;align-items:center;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:none;}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-inner a{
  flex:0 0 auto;font-size:14px;font-weight:500;color:var(--text-2);
  padding:8px 16px;border:1px solid var(--line);border-radius:999px;
  transition:all .3s var(--ease);
}
.anchor-inner a:hover{border-color:var(--ink);color:var(--ink);background:var(--paper);}
.anchor-inner a.hot{border-color:rgba(192,68,46,.5);color:var(--cinnabar);}

/* ---------- 通用板块 ---------- */
.section{padding:84px 0;}
.section-alt{background:var(--paper-2);}
.section-white{background:var(--white);}
.section-head{margin-bottom:44px;max-width:760px;}
.section-label{font-size:12.5px;letter-spacing:.22em;color:var(--bronze);font-weight:600;display:block;margin-bottom:12px;}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.1rem);margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:15.5px;}
@media (max-width:991.98px){.section{padding:64px 0;}}
@media (max-width:575.98px){.section{padding:48px 0;}}

/* ---------- 检索位 ---------- */
.search-panel{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-sm);margin-top:-38px;position:relative;z-index:5;
}
.search-panel h2{font-size:19px;margin-bottom:8px;}
.search-panel p{font-size:14px;color:var(--text-2);margin-bottom:18px;}
.search-row{display:flex;gap:12px;}
.search-field{position:relative;flex:1;}
.search-field i{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--text-3);font-size:15px;}
.search-field input{
  width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 16px 0 44px;font-size:15px;color:var(--text);background:var(--paper);
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease);
}
.search-field input::placeholder{color:var(--text-3);}
.search-field input:focus{
  outline:none;border-color:var(--ink);background:var(--white);
  box-shadow:0 0 0 4px rgba(192,68,46,.10);
}
.search-tips{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;}
.search-tips button{
  border:1px solid var(--line);background:transparent;border-radius:999px;
  font-size:12.5px;color:var(--text-2);padding:6px 14px;transition:all .3s var(--ease);
}
.search-tips button:hover{border-color:var(--bronze);color:var(--ink);background:var(--paper);}
.search-result{font-size:13px;color:var(--text-3);margin-top:14px;}
.search-result strong{color:var(--cinnabar);font-weight:600;}
@media (max-width:767.98px){
  .search-panel{padding:22px;margin-top:-28px;}
  .search-row{flex-direction:column;}
  .search-row .btn{width:100%;}
}

/* ---------- FAQ ---------- */
.faq-group{margin-bottom:56px;}
.faq-group:last-child{margin-bottom:0;}
.faq-group-head{display:flex;align-items:baseline;gap:14px;margin-bottom:12px;}
.faq-group-head .idx{font-family:var(--font-serif);font-size:22px;color:var(--bronze);font-weight:700;}
.faq-group-head h3{font-size:20px;}
.faq-group-head .count{font-size:12.5px;color:var(--text-3);margin-left:auto;}
.accordion{--bs-accordion-bg:transparent;--bs-accordion-border-width:0;--bs-accordion-btn-focus-box-shadow:none;--bs-accordion-body-padding-x:0;--bs-accordion-body-padding-y:0;}
.accordion-item{background:transparent;border:0;border-top:1px solid var(--line);}
.faq-group .accordion-item:last-child{border-bottom:1px solid var(--line);}
.accordion-button{
  background:transparent;color:var(--ink-deep);font-family:var(--font-sans);
  font-size:17px;font-weight:600;line-height:1.6;padding:22px 0;display:flex;gap:16px;
  border-radius:0!important;box-shadow:none!important;transition:color .3s var(--ease);
}
.accordion-button:hover{color:var(--cinnabar);}
.accordion-button:not(.collapsed){color:var(--ink);background:transparent;}
.accordion-button::after{display:none;}
.faq-icon{position:relative;flex:0 0 16px;width:16px;height:16px;margin-left:auto;top:4px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink);
  transform:translate(-50%,-50%);transition:transform .32s var(--ease),opacity .32s var(--ease),background .32s var(--ease);
}
.faq-icon::before{width:15px;height:1.6px;}
.faq-icon::after{width:1.6px;height:15px;}
.accordion-button:hover .faq-icon::before,.accordion-button:hover .faq-icon::after{background:var(--cinnabar);}
.accordion-button:not(.collapsed) .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.accordion-body{padding:0 48px 24px 0;color:var(--text-2);font-size:15px;line-height:1.9;}
.accordion-body p+p{margin-top:10px;}
.accordion-body strong{color:var(--ink);font-weight:600;}
@media (max-width:575.98px){
  .accordion-button{font-size:15.5px;padding:18px 0;}
  .accordion-body{padding:0 0 20px;font-size:14.5px;}
}

/* ---------- 安全自查清单 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.check-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 26px;transition:border-color .3s var(--ease),box-shadow .3s var(--ease),transform .3s var(--ease);
}
.check-card:hover{border-color:var(--ink);box-shadow:var(--shadow-md);transform:translateY(-2px);}
.check-card .num{font-family:var(--font-serif);font-size:26px;font-weight:700;color:var(--bronze);letter-spacing:.02em;}
.check-card:hover .num{color:var(--cinnabar);}
.check-card h3{font-size:17px;margin:12px 0 10px;}
.check-card p{font-size:14.5px;color:var(--text-2);line-height:1.85;}
@media (max-width:991.98px){.check-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:575.98px){.check-grid{grid-template-columns:1fr;gap:16px;}.check-card{padding:22px 20px;}}

/* ---------- 联系卡 ---------- */
.contact-card{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.contact-left{padding:40px 38px;border-right:1px solid var(--line);}
.contact-left h3{font-size:22px;margin-bottom:14px;}
.contact-left p{font-size:15px;color:var(--text-2);}
.contact-left .btn{margin-top:24px;}
.contact-right{padding:34px 38px;display:flex;flex-direction:column;justify-content:center;}
.contact-row{display:flex;align-items:baseline;gap:16px;padding:15px 0;border-bottom:1px dashed var(--line);}
.contact-row:last-child{border-bottom:0;}
.contact-row .k{flex:0 0 84px;font-size:13.5px;color:var(--text-3);}
.contact-row .v{font-size:15px;color:var(--ink-deep);font-weight:600;}
.contact-row .v a{color:var(--ink);}
.contact-row .v a:hover{color:var(--cinnabar);}
@media (max-width:767.98px){
  .contact-card{grid-template-columns:1fr;}
  .contact-left{border-right:0;border-bottom:1px solid var(--line);padding:30px 24px;}
  .contact-right{padding:24px;}
}

/* ---------- CTA 条 ---------- */
.cta-strip{background:var(--ink-deep);color:rgba(255,255,255,.86);padding:52px 0;}
.cta-inner{display:flex;align-items:center;gap:40px;}
.cta-inner h2{color:#fff;font-size:clamp(1.3rem,2.2vw,1.75rem);margin-bottom:10px;}
.cta-inner p{font-size:14.5px;color:rgba(255,255,255,.68);max-width:620px;}
.cta-actions{margin-left:auto;display:flex;gap:14px;flex-shrink:0;}
@media (max-width:991.98px){
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;}
  .cta-actions{margin-left:0;flex-wrap:wrap;}
}
@media (max-width:575.98px){.cta-actions{width:100%;flex-direction:column;}.cta-actions .btn{width:100%;}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.7);padding:68px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:44px;padding-bottom:48px;}
.footer-brand .brand-main{color:#fff;font-size:20px;}
.footer-brand .brand-sub{color:var(--bronze);}
.footer-brand p{margin-top:18px;font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.6);max-width:300px;}
.footer-col h4{color:#fff;font-size:14.5px;font-family:var(--font-sans);font-weight:600;letter-spacing:.06em;margin-bottom:18px;}
.footer-col ul li{margin-bottom:11px;font-size:13.5px;color:rgba(255,255,255,.62);}
.footer-col ul li a{color:rgba(255,255,255,.7);}
.footer-col ul li a:hover{color:var(--bronze);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px 30px;justify-content:space-between;
  font-size:12.5px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--bronze);}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:34px;}}
@media (max-width:575.98px){.site-footer{padding-top:48px;}.footer-grid{grid-template-columns:1fr;gap:28px;}}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
  .reveal{opacity:1;transform:none;}
}