/* roulang page: index */
:root{
  --ink:#241B33;
  --ink-soft:rgba(36,27,51,.30);
  --coral:#FF5A3C;
  --coral-soft:rgba(255,90,60,.12);
  --lime:#C9F24D;
  --bg:#F7F4EF;
  --bg-alt:#EFEAE2;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --line-strong:#D9D2C6;
  --text:#3A3640;
  --muted:#6B6478;
  --ok:#2F9E6B;
  --warn:#E8A33D;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(36,27,51,.05);
  --sh-2:0 18px 40px -20px rgba(36,27,51,.28);
  --sh-3:0 6px 20px -12px rgba(36,27,51,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --mono:"SFMono-Regular",SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{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(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);}
a:hover{color:var(--coral);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em;font-style:normal;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
dl,dd,dt{margin:0;}
:focus-visible{outline:2px solid var(--coral);outline-offset:2px;border-radius:6px;}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em;}

/* ---------- 容器 ---------- */
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.wrap{max-width:1280px;}}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-alt{background:var(--bg-alt);}
.section-ink{background:var(--ink);color:rgba(247,244,239,.78);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.sec-title{position:relative;padding-left:16px;font-size:28px;line-height:1.3;}
.sec-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--coral);}
.sec-sub{margin-top:10px;padding-left:16px;color:var(--muted);font-size:15px;max-width:640px;}
.sec-link{font-size:15px;font-weight:600;color:var(--ink);white-space:nowrap;border-bottom:2px solid transparent;}
.sec-link:hover{color:var(--coral);border-bottom-color:var(--coral);}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-pill);border:1px solid transparent;font-size:15px;font-weight:700;cursor:pointer;transition:all .2s var(--ease);}
.btn-primary{background:var(--coral);color:var(--ink);}
.btn-primary:hover{background:var(--ink);color:var(--bg);transform:translateY(-1px);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{background:transparent;border:1.5px solid var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--bg);}
.btn-lg{height:56px;padding:0 34px;font-size:16px;}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.btn-onink{background:var(--coral);color:var(--ink);}
.btn-onink:hover{background:var(--bg);color:var(--ink);transform:translateY(-1px);}
.btn-outline-light-2{background:transparent;border:1.5px solid rgba(247,244,239,.4);color:var(--bg);}
.btn-outline-light-2:hover{background:rgba(247,244,239,.12);color:#fff;border-color:rgba(247,244,239,.75);}

/* ---------- 徽章 / 标签 ---------- */
.chip{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--bg-alt);color:var(--ink);font-size:12px;font-weight:600;letter-spacing:.01em;}
.chip-lime{background:var(--lime);color:var(--ink);}
.chip-coral{background:var(--coral-soft);color:var(--coral);}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--ok);display:inline-block;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:height .25s var(--ease),box-shadow .25s var(--ease);}
.site-header.is-scrolled{box-shadow:var(--sh-3);}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px;transition:height .25s var(--ease);}
.site-header.is-scrolled .nav-wrap{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:26px;height:26px;border-radius:8px;background:var(--coral);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:800;flex-shrink:0;}
.brand-text{font-size:16px;font-weight:700;color:var(--ink);line-height:1.25;max-width:190px;letter-spacing:-.01em;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:12px;}
.nav-link{position:relative;display:inline-flex;align-items:center;height:64px;padding:0 14px;font-size:15px;font-weight:500;color:var(--ink);}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:14px;height:3px;border-radius:2px;background:transparent;transition:background .2s var(--ease);}
.nav-link:hover{color:var(--coral);}
.nav-link.active{font-weight:700;color:var(--ink);}
.nav-link.active::after{background:var(--coral);}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{position:relative;}
.search-box input{width:220px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--bg);padding:0 14px 0 36px;font-size:14px;color:var(--text);transition:all .2s var(--ease);}
.search-box input::placeholder{color:#9A93A6;}
.search-box input:focus{outline:none;background:#fff;border-color:var(--coral);box-shadow:0 0 0 3px var(--coral-soft);}
.search-box i{position:absolute;left:13px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--muted);pointer-events:none;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:16px;align-items:center;justify-content:center;cursor:pointer;}
.nav-toggle:hover{border-color:var(--coral);color:var(--coral);}

/* 移动抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(36,27,51,.45);opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s;z-index:1040;}
.drawer{position:fixed;top:0;right:0;bottom:0;width:302px;max-width:86vw;background:#fff;z-index:1050;transform:translateX(102%);transition:transform .32s var(--ease);display:flex;flex-direction:column;padding:20px;overflow-y:auto;}
.drawer-open .drawer-mask{opacity:1;visibility:visible;}
.drawer-open .drawer{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:20px;}
.drawer-links a{padding:12px 14px;border-radius:12px;font-size:15px;font-weight:500;color:var(--ink);background:var(--bg);}
.drawer-links a.active{background:var(--coral-soft);color:var(--coral);font-weight:700;}
.drawer-search{position:relative;margin-bottom:16px;}
.drawer-search input{width:100%;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--bg);padding:0 14px 0 38px;font-size:14px;}
.drawer-search i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:13px;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--bg);}
.hero-bg{position:absolute;inset:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(247,244,239,.97) 0%,rgba(247,244,239,.92) 38%,rgba(247,244,239,.62) 68%,rgba(247,244,239,.34) 100%);}
.hero-fade{position:absolute;left:0;right:0;bottom:0;height:60px;background:linear-gradient(180deg,rgba(247,244,239,0),var(--bg));z-index:2;}
.hero-inner{position:relative;z-index:3;display:grid;grid-template-columns:minmax(0,1fr) 372px;gap:56px;align-items:start;padding:88px 0 96px;min-height:620px;}
.hero-brand{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);font-size:13px;font-weight:700;color:var(--ink);box-shadow:var(--sh-1);margin-bottom:22px;}
.hero h1{font-size:44px;line-height:1.2;font-weight:800;max-width:14em;}
.hero h1 em{font-style:normal;color:var(--coral);}
.hero-sub{margin-top:20px;font-size:18px;line-height:1.75;color:var(--muted);max-width:30em;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-points span{display:inline-flex;align-items:center;gap:7px;height:32px;padding:0 14px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--ink);}
.hero-points i{color:var(--coral);font-size:12px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:26px;margin-top:-24px;}
.hero-card-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px dashed var(--line);}
.hero-card-head .ver{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:22px;font-weight:700;color:var(--ink);}
.hero-specs{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.hero-specs > div{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:13.5px;}
.hero-specs dt{color:var(--muted);flex-shrink:0;}
.hero-specs dd{color:var(--ink);font-weight:600;text-align:right;}
.hero-qr{display:flex;align-items:center;gap:14px;margin:20px 0 18px;padding:14px;border-radius:var(--r-md);background:var(--bg);}
.qr{width:96px;height:96px;background:#fff;border-radius:10px;padding:8px;display:grid;grid-template-columns:repeat(5,1fr);grid-template-rows:repeat(5,1fr);gap:3px;flex-shrink:0;border:1px solid var(--line);}
.qr i{background:var(--ink);border-radius:2px;}
.qr i.blank{background:transparent;}
.hero-qr p{font-size:13px;color:var(--muted);line-height:1.6;}
.hero-qr strong{display:block;color:var(--ink);font-size:14px;margin-bottom:4px;}

/* ---------- 截图轮播 ---------- */
.shot-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);}
.shot-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.shot-figure{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);border:1px solid var(--line);border-radius:18px;}
.shot-figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.shot-card:hover .shot-figure img{transform:scale(1.04);}
.shot-num{display:inline-block;font-family:var(--mono);font-size:13px;font-weight:700;color:var(--coral);letter-spacing:.08em;}
.shot-body{padding:16px 18px 20px;}
.shot-body h3{font-size:18px;margin-top:6px;}
.shot-body p{margin-top:6px;font-size:14px;line-height:1.7;color:var(--muted);}
#shotCarousel .carousel-inner{padding:4px 0 8px;}
#shotCarousel .carousel-control-prev,#shotCarousel .carousel-control-next{width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--line);top:32%;opacity:1;}
#shotCarousel .carousel-control-prev{left:-6px;}
#shotCarousel .carousel-control-next{right:-6px;}
#shotCarousel .carousel-control-prev:hover,#shotCarousel .carousel-control-next:hover{background:var(--coral);border-color:var(--coral);}
#shotCarousel .carousel-control-prev i,#shotCarousel .carousel-control-next i{color:var(--ink);font-size:15px;}
#shotCarousel .carousel-control-prev:hover i,#shotCarousel .carousel-control-next:hover i{color:var(--ink);}
#shotCarousel .carousel-indicators{position:static;margin:28px 0 0;gap:8px;}
#shotCarousel .carousel-indicators [data-bs-target]{width:8px;height:8px;border-radius:var(--r-pill);background:rgba(36,27,51,.25);border:0;margin:0;opacity:1;transition:all .25s var(--ease);}
#shotCarousel .carousel-indicators .active{width:24px;background:var(--coral);}

/* ---------- 核心能力 ---------- */
.cap-grid{display:grid;grid-template-columns:2fr 1fr;gap:24px;}
.cap-main{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--sh-1);transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);}
.cap-main:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.cap-main figure{margin:0;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);}
.cap-main figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.cap-main:hover figure img{transform:scale(1.04);}
.cap-main-body{padding:26px 28px 30px;}
.cap-main-body h3{font-size:22px;margin-bottom:10px;}
.cap-main-body p{font-size:15px;line-height:1.85;color:var(--muted);}
.cap-list{display:flex;flex-direction:column;gap:24px;}
.cap-mini{flex:1;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;display:flex;flex-direction:column;gap:10px;box-shadow:var(--sh-1);transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);}
.cap-mini:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.cap-mini .idx{font-family:var(--mono);font-size:26px;font-weight:800;color:var(--ink-soft);line-height:1;}
.cap-mini h3{font-size:18px;}
.cap-mini p{font-size:14px;line-height:1.75;color:var(--muted);}

/* ---------- 系统要求 ---------- */
.req-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.req-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:30px;box-shadow:var(--sh-1);}
.req-card.reco{border-color:var(--coral);box-shadow:var(--sh-2);}
.req-card h3{font-size:19px;display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.req-card h3 .chip{font-size:11px;}
.req-list{display:flex;flex-direction:column;gap:0;}
.req-list li{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:13px 0;border-bottom:1px dashed var(--line);font-size:14.5px;}
.req-list li:last-child{border-bottom:0;}
.req-list span{color:var(--muted);}
.req-list b{font-weight:600;color:var(--ink);text-align:right;font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ---------- 评价墙 ---------- */
.quote-rows{display:flex;flex-direction:column;gap:20px;overflow:hidden;}
.quote-track{display:flex;gap:20px;width:max-content;animation:slideL 44s linear infinite;}
.quote-track.reverse{animation:slideR 52s linear infinite;}
.quote-rows:hover .quote-track{animation-play-state:paused;}
@keyframes slideL{from{transform:translateX(0);}to{transform:translateX(-50%);}}
@keyframes slideR{from{transform:translateX(-50%);}to{transform:translateX(0);}}
.quote-card{width:330px;flex-shrink:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1);transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);}
.quote-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.quote-stars{color:var(--coral);font-size:12px;letter-spacing:2px;margin-bottom:10px;}
.quote-card p{font-size:14.5px;line-height:1.8;color:var(--text);}
.quote-user{display:flex;align-items:center;gap:10px;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);}
.quote-avatar{width:34px;height:34px;border-radius:50%;background:var(--bg-alt);color:var(--ink);display:grid;place-items:center;font-size:13px;font-weight:700;flex-shrink:0;}
.quote-user b{display:block;font-size:13.5px;color:var(--ink);}
.quote-user small{font-size:12px;color:var(--muted);}

/* ---------- 深色下载区 ---------- */
.dl-band{background:var(--ink);color:rgba(247,244,239,.78);padding:88px 0;}
.dl-grid{display:grid;grid-template-columns:minmax(0,1.35fr) 300px;gap:48px;align-items:center;}
.dl-band h2{color:#fff;font-size:30px;line-height:1.3;padding-left:16px;position:relative;}
.dl-band h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--coral);}
.dl-band p.lead{margin-top:16px;padding-left:16px;font-size:15.5px;line-height:1.85;color:rgba(247,244,239,.68);max-width:44em;}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;padding-left:16px;}
.dl-note{margin-top:20px;padding-left:16px;font-size:12px;color:rgba(247,244,239,.52);display:flex;align-items:center;gap:8px;}
.dl-note i{color:var(--lime);}
.dl-qr-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-lg);padding:24px;text-align:center;}
.dl-qr-card .qr{margin:0 auto;border:0;}
.dl-qr-card p{margin-top:14px;font-size:13px;color:rgba(247,244,239,.68);}

/* ---------- 资讯列表 ---------- */
.post-card{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.post-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.post-body h3{font-size:17px;line-height:1.5;margin-top:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card:hover h3{color:var(--coral);}
.post-body p{margin-top:10px;font-size:14px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:16px;font-size:13px;color:var(--muted);}
.post-meta .read{margin-left:auto;font-weight:600;color:var(--ink);}
.post-card:hover .post-meta .read{color:var(--coral);}
.empty-state{min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;background:#fff;border:1px dashed var(--line);border-radius:var(--r-md);padding:32px;}
.empty-state i{font-size:44px;color:var(--line-strong);}
.empty-state b{font-size:16px;color:var(--ink);}
.empty-state span{font-size:13px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.faq-item:hover{border-color:rgba(255,90,60,.45);}
.faq-item.open{border-color:var(--coral);box-shadow:var(--sh-1);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;background:transparent;border:0;text-align:left;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;}
.faq-q i{font-size:14px;color:var(--coral);transition:transform .2s var(--ease);flex-shrink:0;}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(247,244,239,.7);padding:64px 0 32px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.site-footer h4{color:#fff;font-size:14px;font-weight:700;letter-spacing:.04em;margin-bottom:16px;}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(247,244,239,.6);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:28px;height:28px;}
.footer-brand span{color:#fff;font-size:15px;font-weight:700;line-height:1.3;max-width:180px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(247,244,239,.7);}
.footer-links a:hover{color:var(--coral);}
.footer-qr{display:flex;align-items:center;gap:14px;}
.footer-qr .qr{border:0;}
.footer-qr small{font-size:12.5px;color:rgba(247,244,239,.55);line-height:1.7;}
.footer-bottom{margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.16);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(247,244,239,.52);}

/* ---------- 动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- 断点 ---------- */
@media (max-width:1199.98px){
  .hero h1{font-size:38px;}
  .hero-inner{grid-template-columns:minmax(0,1fr) 340px;gap:36px;}
  .nav-link{padding:0 11px;font-size:14.5px;}
  .search-box input{width:170px;}
  .dl-grid{grid-template-columns:minmax(0,1fr) 260px;gap:32px;}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  .nav-links,.search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-wrap{height:60px;gap:14px;}
  .brand-text{font-size:14px;max-width:150px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:64px 0 72px;min-height:auto;}
  .hero h1{font-size:32px;}
  .hero-card{margin-top:0;}
  .cap-grid{grid-template-columns:1fr;}
  .cap-list{flex-direction:row;}
  .cap-mini{min-height:0;}
  .req-grid{grid-template-columns:1fr;}
  .dl-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  #shotCarousel .carousel-control-prev,#shotCarousel .carousel-control-next{display:none;}
}
@media (max-width:767.98px){
  .wrap{padding:0 20px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .sec-head{margin-bottom:28px;}
  .sec-title{font-size:23px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .cap-list{flex-direction:column;}
  .quote-card{width:280px;}
  .quote-rows{gap:14px;}
  .dl-band{padding:56px 0;}
  .dl-band h2{font-size:24px;}
  .dl-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  .hero h1{font-size:26px;}
  .brand-text{font-size:13.5px;max-width:126px;}
  .hero-card{padding:20px;}
  .req-card{padding:22px;}
  .req-list li{flex-direction:column;gap:4px;align-items:flex-start;}
  .req-list b{text-align:left;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .quote-track{animation:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --ink:#241B33;
  --ink-soft:rgba(36,27,51,.3);
  --orange:#FF5A3C;
  --lime:#C9F24D;
  --bg:#F7F4EF;
  --bg-alt:#EFEAE2;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --line-strong:#D9D2C6;
  --text:#3A3640;
  --muted:#6B6478;
  --ok:#2F9E6B;
  --warn:#E8A33D;
  --r-sm:6px;
  --r-md:14px;
  --r-lg:22px;
  --sh-1:0 1px 2px rgba(36,27,51,.05);
  --sh-2:0 18px 40px -20px rgba(36,27,51,.28);
  --sh-nav:0 6px 20px -12px rgba(36,27,51,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--orange)}
button{font:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:all .2s var(--ease);
}
.btn:focus-visible{outline:2px solid var(--orange);outline-offset:2px}
.btn-primary{background:var(--orange);color:var(--ink);border-color:var(--orange)}
.btn-primary:hover{background:var(--ink);color:var(--bg);border-color:var(--ink);transform:translateY(-1px)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--bg);transform:translateY(-1px)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-lg{height:56px;padding:0 34px;font-size:16px}
.btn-dark-ghost{background:transparent;color:#F7F4EF;border-color:rgba(247,244,239,.5)}
.btn-dark-ghost:hover{background:#F7F4EF;color:var(--ink);border-color:#F7F4EF}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-nav)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px;transition:height .25s var(--ease)}
.site-header.is-scrolled .nav-wrap{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:26px;height:26px;border-radius:8px;background:var(--orange);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;flex-shrink:0;
}
.brand-text{font-size:16px;font-weight:700;color:var(--ink);line-height:1.25;max-width:190px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;padding:6px 12px;font-size:15px;font-weight:500;color:var(--text);
}
.nav-link:hover{color:var(--ink)}
.nav-link.active{color:var(--ink);font-weight:700}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:3px;border-radius:2px;background:var(--orange);
}
.nav-tools{display:flex;align-items:center;gap:12px;flex-shrink:0}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;width:220px;padding:0 14px;
  background:var(--bg);border:1px solid var(--line);border-radius:999px;transition:all .2s var(--ease);
}
.search-box i{color:var(--muted);font-size:13px}
.search-box input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:#9A93A6}
.search-box:focus-within{background:#fff;border-color:var(--orange);box-shadow:0 2px 10px -4px rgba(255,90,60,.5)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--line-strong)}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:20px 0 0}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--orange)}
.crumb span.sep{color:#C6BFD0}
.crumb .current{color:var(--ink);font-weight:600}

/* ---------- 文章布局 ---------- */
.article-shell{padding:24px 0 96px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px}
.article-main{min-width:0}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:var(--bg-alt);color:var(--ink);font-size:12px;font-weight:600;
}
.badge-dot{width:6px;height:6px;border-radius:50%;background:var(--lime)}
.article-head{margin-top:16px}
.article-head h1{font-size:32px;line-height:1.35;letter-spacing:-.02em}
.article-lead{margin-top:18px;font-size:16px;line-height:1.9;color:var(--muted)}
.article-meta{
  display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:22px;padding-top:18px;
  border-top:1px solid var(--line);font-size:13px;color:var(--muted);
}
.article-meta i{color:var(--orange);margin-right:6px;font-size:12px}

.article-body{
  margin-top:36px;max-width:760px;font-size:17px;line-height:1.95;color:var(--text);
}
.article-body p{margin:0 0 24px}
.article-body h2{
  position:relative;margin:48px 0 20px;padding-left:16px;font-size:26px;line-height:1.35;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:18px;border-radius:2px;background:var(--orange);
}
.article-body h3{margin:32px 0 14px;font-size:19px;line-height:1.5}
.article-body ul,.article-body ol{margin:0 0 24px;padding-left:22px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:10px}
.article-body blockquote{
  margin:0 0 24px;padding:18px 20px;background:var(--bg-alt);border-left:3px solid var(--orange);
  border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--ink);font-family:Georgia,"Songti SC",serif;
}
.article-body img{border-radius:var(--r-md);margin:8px 0 10px;border:1px solid var(--line)}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 24px;font-size:15px}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:var(--bg-alt);color:var(--ink);font-weight:700}
.article-body tr:nth-child(even) td{background:#FCFAF7}
.article-body code{
  font-family:var(--mono);font-size:14px;background:var(--ink);color:#F7F4EF;
  padding:2px 7px;border-radius:var(--r-sm);
}
.article-body pre{
  background:var(--ink);color:#F7F4EF;border-radius:var(--r-md);padding:18px 20px;overflow:auto;
  font-family:var(--mono);font-size:14px;line-height:1.7;margin:0 0 24px;
}
.article-body pre code{background:transparent;padding:0;color:inherit}
.article-body a{color:var(--ink);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--orange)}
.article-body a:hover{color:var(--orange)}

.notice-card{
  max-width:760px;margin-top:36px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:48px 32px;text-align:center;box-shadow:var(--sh-1);
}
.notice-card i{font-size:44px;color:var(--ink-soft)}
.notice-card h2{margin:16px 0 8px;font-size:20px}
.notice-card p{color:var(--muted);font-size:14px;margin-bottom:20px}

/* ---------- 侧栏 ---------- */
.article-side{min-width:0}
.side-inner{display:flex;flex-direction:column;gap:20px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1)}
.side-card h3{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--orange)}
.toc-list{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line);padding-left:14px}
.toc-list a{font-size:14px;color:var(--muted);padding:5px 0;line-height:1.5}
.toc-list a:hover{color:var(--orange)}
.toc-list a.on{color:var(--ink);font-weight:600}
.mini-post{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line)}
.mini-post:last-child{border-bottom:0;padding-bottom:0}
.mini-post img{width:58px;height:58px;object-fit:cover;border-radius:10px;border:1px solid var(--line);flex-shrink:0}
.mini-post b{display:block;font-size:14px;font-weight:600;line-height:1.5;color:var(--ink)}
.mini-post b:hover{color:var(--orange)}
.mini-post span{font-size:12px;color:var(--muted)}
.cta-mini{background:var(--ink);color:#F7F4EF;border-color:var(--ink)}
.cta-mini h3{color:#fff}
.cta-mini p{font-size:13px;line-height:1.8;color:rgba(247,244,239,.7);margin-bottom:16px}
.cta-mini .btn{width:100%}

/* ---------- 文末 ---------- */
.article-foot{margin-top:48px;max-width:760px}
.dl-strip{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;padding:22px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);
}
.dl-strip .dl-text{flex:1 1 200px;min-width:0}
.dl-strip strong{display:block;font-size:16px;color:var(--ink)}
.dl-strip small{font-size:13px;color:var(--muted)}
.pager{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;margin-top:24px}
.pager a{
  flex:1 1 220px;min-width:0;padding:14px 18px;border:1px solid var(--line);border-radius:var(--r-md);
  background:#fff;font-size:14px;color:var(--ink);transition:all .2s var(--ease);
}
.pager a:hover{border-color:var(--line-strong);box-shadow:var(--sh-2);transform:translateY(-2px)}
.pager a span{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}
.back-link{display:inline-flex;align-items:center;gap:8px;margin-top:20px;font-size:14px;font-weight:600}

.sec-title{display:flex;align-items:center;gap:12px;font-size:24px;margin:56px 0 22px}
.sec-title::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--orange)}
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rec-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);transition:all .3s var(--ease);
}
.rec-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--sh-2)}
.rec-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);border-bottom:1px solid var(--line)}
.rec-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.rec-card:hover .thumb img{transform:scale(1.04)}
.rec-card .body{padding:18px;display:flex;flex-direction:column;gap:10px}
.rec-card h3{font-size:17px;line-height:1.5}
.rec-card:hover h3{color:var(--orange)}
.rec-card p{font-size:14px;line-height:1.7;color:var(--muted)}
.rec-card .meta{font-size:13px;color:var(--muted);display:flex;justify-content:space-between;gap:8px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(247,244,239,.7);margin-top:96px;padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:#F7F4EF;margin-bottom:14px}
.footer-brand .brand-mark{background:var(--orange);color:#fff}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(247,244,239,.62);max-width:320px}
.site-footer h4{font-size:15px;color:#F7F4EF;margin-bottom:14px;font-weight:700}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(247,244,239,.7)}
.footer-links a:hover{color:var(--orange)}
.footer-qr{display:flex;gap:14px;align-items:flex-start}
.footer-qr small{font-size:12px;line-height:1.7;color:rgba(247,244,239,.55);max-width:180px}
.qr{
  width:96px;height:96px;background:#fff;border-radius:12px;padding:8px;flex-shrink:0;
  display:grid;grid-template-columns:repeat(5,1fr);grid-template-rows:repeat(5,1fr);gap:2px;
}
.qr i{background:var(--ink);border-radius:1px}
.qr i.blank{background:transparent}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;margin-top:48px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.16);font-size:13px;color:rgba(247,244,239,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-body{max-width:100%}
  .article-foot{max-width:100%}
}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:56px}
  .side-inner{position:sticky;top:92px}
}
@media (max-width:991px){
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:280px;max-width:84vw;background:#fff;z-index:130;
    flex-direction:column;align-items:flex-start;gap:4px;padding:88px 20px 24px;margin:0;
    border-left:1px solid var(--line);transform:translateX(102%);transition:transform .3s var(--ease);
    box-shadow:-16px 0 40px -24px rgba(36,27,51,.4);overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0)}
  .nav-link{width:100%;padding:12px 10px;font-size:16px;border-radius:10px}
  .nav-link.active::after{left:10px;right:auto;width:28px;bottom:6px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .search-box{display:none}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:767px){
  .wrap{padding:0 20px}
  .brand-text{font-size:14px;max-width:150px}
  .nav-tools .btn{display:none}
  .article-shell{padding:20px 0 56px}
  .article-head h1{font-size:24px}
  .article-body{font-size:16px;line-height:1.9}
  .article-body h2{font-size:22px;margin:40px 0 16px}
  .rec-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .site-footer{padding:56px 0 28px;margin-top:56px}
  .sec-title{font-size:20px;margin-top:44px}
}
@media (max-width:575px){
  .article-meta{gap:6px 14px}
  .dl-strip{padding:18px}
  .dl-strip .btn{width:100%}
  .pager a{flex:1 1 100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .rec-card:hover,.pager a:hover,.btn:hover{transform:none!important}
  .rec-card:hover .thumb img{transform:none!important}
}

/* roulang page: category1 */
:root{
  --ink:#241B33;
  --ink-soft:rgba(36,27,51,.62);
  --accent:#FF5A3C;
  --accent-soft:rgba(255,90,60,.12);
  --lime:#C9F24D;
  --bg:#F7F4EF;
  --bg-soft:#EFEAE2;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --line-strong:#D9D2C6;
  --text:#3A3640;
  --muted:#6B6478;
  --ok:#2F9E6B;
  --warn:#E8A33D;
  --danger:#C0392B;
  --r-sm:6px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(36,27,51,.05);
  --sh-2:0 18px 40px -20px rgba(36,27,51,.28);
  --sh-3:0 6px 20px -12px rgba(36,27,51,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --bs-body-font-family:var(--font);
  --bs-body-color:var(--text);
  --bs-border-color:var(--line);
  --bs-link-color:var(--ink);
  --bs-link-hover-color:var(--accent);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--font);
  font-size:16px;line-height:1.85;letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--accent)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em;line-height:1.3}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:0}

/* 容器 */
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.container{max-width:1200px;padding-left:24px;padding-right:24px}
@media(min-width:1400px){
  .wrap,.container{max-width:1280px}
}
.row{--bs-gutter-x:24px;--bs-gutter-y:24px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;
  border-radius:var(--r-pill);border:1.5px solid transparent;font-size:15px;font-weight:700;line-height:1;
  cursor:pointer;transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;text-decoration:none}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--accent);color:var(--ink);box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--ink);color:var(--bg);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--bg)}
.btn-sm{height:40px;padding:0 20px;font-size:15px}
.btn-lg{height:56px;padding:0 34px;font-size:16px}
.btn-on-dark{background:var(--accent);color:var(--ink)}
.btn-on-dark:hover{background:var(--bg);color:var(--ink);transform:translateY(-1px)}
.btn-ghost-dark{background:transparent;color:var(--bg);border-color:rgba(255,255,255,.55)}
.btn-ghost-dark:hover{background:rgba(255,255,255,.12);color:#fff;border-color:var(--bg)}
.link-more{font-size:14px;font-weight:600;border-bottom:2px solid transparent}
.link-more:hover{border-bottom-color:var(--accent);text-decoration:underline;text-underline-offset:4px}

/* 导航 */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:height .25s var(--ease),box-shadow .25s var(--ease)}
.site-header.scrolled{box-shadow:var(--sh-3)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px;transition:height .25s var(--ease)}
.site-header.scrolled .nav-wrap{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;max-width:290px}
.brand-mark{width:24px;height:24px;border-radius:8px;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;flex:0 0 24px}
.brand-text{font-size:16px;font-weight:700;color:var(--ink);line-height:1.25;letter-spacing:-.01em}
.nav-links{display:flex;align-items:center;gap:26px;flex:1 1 auto}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--muted);padding:6px 0}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;border-radius:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
.nav-link:hover{color:var(--ink)}
.nav-link.active{color:var(--ink);font-weight:700}
.nav-link.active::after{transform:scaleX(1)}
.nav-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-box{display:flex;align-items:center;gap:8px;height:40px;width:220px;padding:0 14px;border-radius:var(--r-pill);background:var(--bg);border:1px solid transparent;transition:background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.search-box:focus-within{background:#fff;border-color:var(--accent);box-shadow:0 6px 18px -12px rgba(255,90,60,.6)}
.search-box i{color:var(--muted);font-size:13px}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14px}
.search-box input::placeholder{color:var(--muted)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink);align-items:center;justify-content:center}

/* 页头 band */
.page-band{position:relative;overflow:hidden;background:#EFEAE2}
.page-band::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center right;opacity:.55}
.page-band::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(247,244,239,.97) 0%,rgba(247,244,239,.9) 46%,rgba(247,244,239,.35) 100%)}
.band-inner{position:relative;z-index:2;padding:44px 0 56px}
.crumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--muted);margin-bottom:20px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:#BFB8AE}
.crumb .now{color:var(--ink);font-weight:600}
.band-tag{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);font-size:12px;font-weight:600;color:var(--ink);margin-bottom:18px}
.band-tag .dot{width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(201,242,77,.28)}
.page-band h1{font-size:34px;line-height:1.25;max-width:820px}
.band-lead{max-width:720px;margin-top:16px;font-size:16px;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.chip{display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--ink);box-shadow:var(--sh-1);transition:transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease)}
.chip i{color:var(--accent);font-size:12px}
.chip:hover{transform:translateY(-1px);border-color:var(--accent);color:var(--accent)}

/* 板块 */
.section{padding:96px 0}
.section-sm{padding:64px 0}
.section-soft{background:var(--bg-soft)}
.section-title{display:flex;align-items:flex-start;gap:14px;margin-bottom:20px}
.section-title::before{content:"";flex:0 0 4px;width:4px;height:18px;margin-top:9px;background:var(--accent);border-radius:2px}
.section-title h2{font-size:28px;line-height:1.3}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head .sub{max-width:640px;margin-top:10px;font-size:15px;color:var(--muted)}
.sec-index{font-family:var(--mono);font-size:32px;font-weight:700;color:rgba(36,27,51,.3);line-height:1}

/* 图文网格 */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.split.reverse{grid-template-columns:.95fr 1.05fr}
.media-card{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--sh-1)}
.media-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s var(--ease)}
.media-card:hover img{transform:scale(1.04)}
.body-list li{position:relative;padding-left:26px;margin-bottom:12px;font-size:16px;color:var(--text)}
.body-list li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:2px;background:var(--accent)}

/* 事实行 */
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.fact{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:18px;box-shadow:var(--sh-1)}
.fact b{display:block;font-family:var(--mono);font-size:20px;color:var(--ink)}
.fact span{display:block;margin-top:4px;font-size:13px;color:var(--muted)}

/* 步骤 + sticky 卡 */
.install-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:48px;align-items:start}
.steps{position:relative;padding-left:42px}
.steps::before{content:"";position:absolute;left:15px;top:12px;bottom:12px;width:2px;background:linear-gradient(180deg,var(--accent),rgba(255,90,60,.15))}
.step{position:relative;padding:0 0 32px}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:-42px;top:6px;width:32px;height:32px;border-radius:50%;background:#fff;border:2px solid var(--accent);box-shadow:0 0 0 6px rgba(255,90,60,.1)}
.step .step-no{position:absolute;left:-34px;top:11px;font-family:var(--mono);font-size:12px;font-weight:700;color:var(--accent);width:16px;text-align:center;z-index:2}
.step h3{font-size:20px;margin-bottom:8px}
.step p{color:var(--muted);font-size:15px}
.step .tip{display:inline-flex;align-items:center;gap:8px;margin-top:12px;padding:8px 14px;border-radius:var(--r-sm);background:var(--accent-soft);color:#8C2E1B;font-size:13px}

.sticky-card{position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-2)}
.sticky-card h3{font-size:18px;margin-bottom:6px}
.sticky-card .note{font-size:13px;color:var(--muted);margin-bottom:18px}
.kv{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px}
.kv:last-of-type{border-bottom:0}
.kv span{color:var(--muted)}
.kv b{color:var(--ink);font-weight:700}
.sticky-card .btn{width:100%;margin-top:18px}
.verify{margin-top:16px;padding:12px 14px;border-radius:var(--r-sm);background:var(--ink);color:rgba(247,244,239,.88);font-family:var(--mono);font-size:12px;line-height:1.7;word-break:break-all}

/* 校验卡组 */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.check-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px;transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease)}
.check-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--sh-2)}
.check-card .ico{width:40px;height:40px;border-radius:12px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.check-card h3{font-size:18px;margin-bottom:8px}
.check-card p{font-size:14px;color:var(--muted)}

/* FAQ */
.faq-list{max-width:900px}
.faq-list .accordion-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .2s var(--ease)}
.faq-list .accordion-item:hover{border-color:#F6B6A4}
.faq-list .accordion-button{background:#fff;color:var(--ink);font-size:16px;font-weight:600;padding:20px;box-shadow:none;border-radius:12px !important}
.faq-list .accordion-button:not(.collapsed){color:var(--ink);background:#fff}
.faq-list .accordion-button::after{background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;width:auto;height:auto;font-size:13px;color:var(--accent);transition:transform .2s var(--ease)}
.faq-list .accordion-button:not(.collapsed)::after{transform:rotate(180deg);content:"\f068"}
.faq-list .accordion-body{padding:0 20px 22px;font-size:15px;color:var(--muted);line-height:1.85}
.faq-list .accordion-button:focus{box-shadow:none;border-color:transparent}

/* 深色下载区 */
.download-band{background:var(--ink);color:rgba(247,244,239,.85)}
.download-band h2{color:#fff;font-size:28px}
.download-band .lead{color:rgba(247,244,239,.7);font-size:15px;max-width:620px;margin-top:14px}
.dl-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:48px;align-items:center}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.dl-note{margin-top:20px;font-size:12px;color:rgba(247,244,239,.62);display:flex;align-items:center;gap:8px}
.dl-note i{color:var(--lime)}
.qr-card{background:#fff;border-radius:var(--r-lg);padding:24px;text-align:center;box-shadow:var(--sh-2)}
.qr-card h3{font-size:16px;margin-bottom:14px}
.qr{width:112px;height:112px;margin:0 auto 14px;border:1px solid var(--line);border-radius:10px;padding:10px;display:grid;grid-template-columns:repeat(5,1fr);grid-template-rows:repeat(5,1fr);gap:4px;background:#fff}
.qr i{background:var(--ink);border-radius:2px}
.qr i.blank{background:transparent}
.qr-card small{display:block;font-size:12px;color:var(--muted);line-height:1.7}

/* 底部 CTA 条 */
.cta-strip{background:var(--bg-soft);border-top:1px solid var(--line)}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;padding:44px 0}
.cta-inner h2{font-size:22px;line-height:1.4}
.cta-inner p{font-size:14px;color:var(--muted);margin-top:8px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(247,244,239,.7);padding:64px 0 32px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;font-weight:700;margin-bottom:16px}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(247,244,239,.62)}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:rgba(247,244,239,.7);font-size:14px}
.footer-links a:hover{color:var(--accent)}
.footer-qr{display:flex;flex-direction:column;gap:12px}
.footer-qr .qr{width:96px;height:96px;margin:0;background:#fff;padding:8px;gap:3px}
.footer-qr small{font-size:12px;color:rgba(247,244,239,.6);line-height:1.7}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.16);font-size:13px;color:rgba(247,244,239,.55)}

/* 动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* 响应式 */
@media(max-width:1199.98px){
  .nav-links{gap:18px}
  .search-box{width:180px}
}
@media(max-width:991.98px){
  .nav-toggle{display:inline-flex}
  .nav-links{position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:88px 24px 32px;box-shadow:-18px 0 40px -24px rgba(36,27,51,.4);transform:translateX(100%);transition:transform .3s var(--ease);z-index:1040;overflow-y:auto}
  .nav-links.open{transform:translateX(0)}
  .nav-link{padding:14px 0;font-size:16px;border-bottom:1px solid var(--line)}
  .nav-link::after{display:none}
  .nav-link.active{color:var(--accent)}
  .search-box{display:none}
  .nav-links .search-box{display:flex;width:100%;margin-bottom:16px}
  .nav-links .btn{width:100%;margin-top:20px}
  .install-grid,.split,.split.reverse,.dl-grid{grid-template-columns:1fr;gap:32px}
  .sticky-card{position:static}
  .check-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .page-band h1{font-size:26px}
  .section{padding:64px 0}
  .section-sm{padding:48px 0}
  .section-title h2,.download-band h2{font-size:24px}
}
@media(max-width:767.98px){
  .wrap,.container{padding-left:20px;padding-right:20px}
  .brand{max-width:190px}
  .brand-text{font-size:14px}
  .band-inner{padding:32px 0 44px}
  .page-band h1{font-size:26px}
  .section{padding:56px 0}
  .facts{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .cta-inner{padding:36px 0}
  .dl-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}
@media(max-width:575.98px){
  .brand-text{font-size:13px}
  .page-band h1{font-size:24px}
  .chips{gap:8px}
  .chip{font-size:12px;height:32px;padding:0 12px}
  .steps{padding-left:36px}
  .step::before{left:-36px;width:28px;height:28px}
  .step .step-no{left:-30px;top:9px}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  .reveal{opacity:1;transform:none}
  .media-card:hover img{transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#241B33;
  --ink-soft:#3A3640;
  --muted:#6B6478;
  --brand:#FF5A3C;
  --lime:#C9F24D;
  --bg:#F7F4EF;
  --soft:#EFEAE2;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --line-hover:#D9D2C6;
  --ok:#2F9E6B;
  --warn:#E8A33D;
  --r-xs:6px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(36,27,51,.05);
  --sh-2:0 18px 40px -20px rgba(36,27,51,.28);
  --sh-nav:0 6px 20px -12px rgba(36,27,51,.18);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --fade:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-soft);
  background:var(--bg);
  letter-spacing:.005em;
}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--fade)}
a:hover{color:var(--brand)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border:1.5px solid transparent;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;color:var(--ink);background:transparent;cursor:pointer;
  transition:background .2s var(--fade),color .2s var(--fade),border-color .2s var(--fade),transform .2s var(--fade),box-shadow .2s var(--fade);
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--brand);color:var(--ink);box-shadow:0 10px 24px -14px rgba(255,90,60,.9)}
.btn-primary:hover{background:var(--ink);color:var(--bg);transform:translateY(-1px)}
.btn-outline{border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:var(--bg)}
.btn-ghost{border-color:rgba(255,255,255,.4);color:#F7F4EF}
.btn-ghost:hover{background:#F7F4EF;color:var(--ink);border-color:#F7F4EF}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-lg{height:56px;padding:0 32px;font-size:16px}
.link-more{font-size:14px;font-weight:600;color:var(--ink);border-bottom:2px solid transparent;padding-bottom:2px}
.link-more:hover{color:var(--brand);border-bottom-color:var(--brand)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--fade),height .25s var(--fade);
}
.site-header.is-stuck{box-shadow:var(--sh-nav)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px;transition:height .25s var(--fade)}
.site-header.is-stuck .nav-wrap{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:24px;height:24px;flex:0 0 24px;border-radius:8px;background:var(--brand);
  color:#fff;font-size:14px;font-weight:800;line-height:24px;text-align:center;
}
.brand-text{font-size:16px;font-weight:800;color:var(--ink);line-height:1.25;max-width:210px}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink-soft);padding:22px 0;line-height:1.2}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:14px;height:3px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--fade);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{font-weight:700;color:var(--ink)}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;width:220px;padding:0 14px;
  background:var(--soft);border:1px solid transparent;border-radius:var(--r-pill);
  color:var(--muted);transition:background .2s var(--fade),border-color .2s var(--fade),box-shadow .2s var(--fade);
}
.search-box i{font-size:13px}
.search-box input{
  border:0;background:transparent;outline:none;font-size:14px;width:100%;color:var(--ink-soft);
}
.search-box input::placeholder{color:var(--muted)}
.search-box:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 6px 18px -12px rgba(255,90,60,.9)}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;
  border-radius:10px;color:var(--ink);font-size:16px;cursor:pointer;
}

/* ---------- page band ---------- */
.page-band{
  position:relative;overflow:hidden;background:var(--soft);
  border-bottom:1px solid var(--line);
}
.page-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center right;
  opacity:.30;
}
.page-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(247,244,239,.97) 0%,rgba(247,244,239,.88) 48%,rgba(247,244,239,.55) 100%);
}
.page-band .wrap{position:relative;z-index:2;padding-top:36px;padding-bottom:52px}
.crumb{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;margin-bottom:22px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{color:#C6BFB4}
.crumb .current{color:var(--ink);font-weight:600}
.band-tag{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);font-size:12px;font-weight:700;color:var(--ink);margin-bottom:18px;
}
.band-tag i{color:var(--brand);font-size:11px}
.page-band h1{font-size:34px;line-height:1.25;max-width:860px}
.page-band .lead{margin-top:16px;font-size:16px;color:var(--muted);max-width:720px}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--ink-soft);
  transition:border-color .2s var(--fade),color .2s var(--fade),transform .2s var(--fade);
}
.chip i{font-size:11px;color:var(--brand)}
.chip:hover{border-color:var(--brand);color:var(--ink);transform:translateY(-2px)}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section.tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:28px;display:flex;align-items:center;gap:14px}
.section-head h2::before{content:"";width:4px;height:22px;border-radius:2px;background:var(--brand);flex:0 0 4px}
.section-head p{font-size:15px;color:var(--muted);max-width:620px;margin-top:10px}
.section-no{
  font-family:var(--mono);font-size:32px;font-weight:700;color:rgba(36,27,51,.28);
  line-height:1;margin-bottom:32px;display:block;
}

/* ---------- timeline ---------- */
.timeline{
  position:relative;display:flex;gap:20px;padding-top:34px;overflow-x:auto;
  scrollbar-width:thin;
}
.timeline::before{
  content:"";position:absolute;left:6px;right:6px;top:8px;height:2px;background:var(--line);
}
.tl-item{position:relative;flex:1 0 232px;padding-top:26px}
.tl-dot{
  position:absolute;top:0;left:0;width:18px;height:18px;border-radius:50%;
  background:#fff;border:2px solid var(--line);
}
.tl-item.is-current .tl-dot{border-color:var(--brand);background:var(--brand);box-shadow:0 0 0 6px rgba(255,90,60,.16)}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;height:100%;box-shadow:var(--sh-1);
  transition:transform .3s var(--fade),border-color .3s var(--fade),box-shadow .3s var(--fade);
}
.tl-card:hover{transform:translateY(-3px);border-color:var(--line-hover);box-shadow:var(--sh-2)}
.tl-ver{font-family:var(--mono);font-size:18px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.tl-date{font-size:12px;color:var(--muted);font-family:var(--mono);margin:4px 0 12px}
.tl-card h3{font-size:16px;margin-bottom:8px}
.tl-card p{font-size:14px;color:var(--muted);line-height:1.8}
.tl-badge{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--r-pill);
  font-size:11px;font-weight:700;background:rgba(201,242,77,.35);color:#3E4A12;margin-bottom:10px;
}

/* ---------- compare table ---------- */
.compare{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
}
.compare table{width:100%;border-collapse:collapse}
.compare th,.compare td{padding:16px 20px;font-size:15px;text-align:left;border-bottom:1px solid var(--line)}
.compare thead th{background:var(--soft);font-size:13px;font-weight:700;color:var(--ink);letter-spacing:.02em}
.compare tbody tr:nth-child(even){background:#FCFAF7}
.compare tbody tr:last-child td{border-bottom:0}
.compare td:first-child{color:var(--muted);font-size:14px}
.compare .v{font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:700;color:var(--ink)}
.compare .up{color:var(--ok);font-size:12px;font-weight:700;margin-left:8px}
.compare-wrap{overflow-x:auto}

/* ---------- update notes ---------- */
.notes-grid{display:grid;grid-template-columns:1.7fr 1fr;gap:24px;align-items:start}
.note-main{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);
}
.note-main img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--soft);border-bottom:1px solid var(--line)}
.note-main .note-body{padding:28px 28px 32px}
.note-main h3{font-size:20px;margin-bottom:12px}
.note-main p{font-size:15px;color:var(--muted);margin-bottom:14px}
.note-list li{display:flex;gap:12px;padding:10px 0;border-top:1px dashed var(--line);font-size:15px;color:var(--ink-soft)}
.note-list li:first-child{border-top:0}
.note-list i{color:var(--brand);font-size:12px;margin-top:8px}
.note-side{display:grid;gap:24px}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:22px;
  box-shadow:var(--sh-1);transition:transform .3s var(--fade),border-color .3s var(--fade),box-shadow .3s var(--fade);
}
.side-card:hover{transform:translateY(-3px);border-color:var(--line-hover);box-shadow:var(--sh-2)}
.side-card .k{
  font-family:var(--mono);font-size:12px;color:var(--brand);font-weight:700;letter-spacing:.06em;margin-bottom:10px;
}
.side-card h3{font-size:17px;margin-bottom:8px}
.side-card p{font-size:14px;color:var(--muted)}
.side-card.dark{background:var(--ink);border-color:rgba(255,255,255,.16)}
.side-card.dark h3{color:#F7F4EF}
.side-card.dark p{color:rgba(247,244,239,.72)}
.side-card.dark .k{color:var(--lime)}

/* ---------- stats strip ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:32px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:20px}
.stat .val{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.2}
.stat .lbl{font-size:13px;color:var(--muted);margin-top:6px}

/* ---------- cta band ---------- */
.cta-band{background:var(--ink);color:#F7F4EF}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  padding:64px 0;
}
.cta-inner h2{color:#F7F4EF;font-size:28px}
.cta-inner p{margin-top:12px;font-size:15px;color:rgba(247,244,239,.72);max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-note{margin-top:14px;font-size:12px;color:rgba(247,244,239,.6);display:flex;align-items:center;gap:8px}
.cta-note i{color:var(--lime);font-size:11px}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .2s var(--fade)}
.faq-item:hover{border-color:#F3B7A8}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px;border:0;background:transparent;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-q i{font-size:14px;color:var(--brand);transition:transform .2s var(--fade)}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{display:none;padding:0 20px 20px;font-size:15px;color:var(--muted);line-height:1.85}
.faq-item.open .faq-a{display:block}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(247,244,239,.72);padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#F7F4EF;font-size:16px;font-weight:800;margin-bottom:14px}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(247,244,239,.66);max-width:340px}
.site-footer h4{color:#F7F4EF;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:rgba(247,244,239,.7)}
.footer-links a:hover{color:var(--brand)}
.footer-qr{display:flex;flex-direction:column;gap:12px}
.footer-qr .qr{
  width:96px;height:96px;background:#fff;border-radius:12px;padding:8px;
  display:grid;grid-template-columns:repeat(5,1fr);grid-template-rows:repeat(5,1fr);gap:3px;
}
.footer-qr .qr i{background:var(--ink);border-radius:2px}
.footer-qr .qr i.blank{background:transparent}
.footer-qr small{font-size:12px;color:rgba(247,244,239,.55);line-height:1.7}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.16);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,244,239,.55);
}

/* ---------- responsive ---------- */
@media (max-width:1399px){
  .wrap{max-width:1160px}
}
@media (max-width:1199px){
  .notes-grid{grid-template-columns:1.4fr 1fr}
  .nav-links{gap:20px}
  .search-box{width:180px}
}
@media (max-width:991px){
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:290px;background:#fff;
    flex-direction:column;align-items:stretch;gap:0;margin:0;padding:88px 24px 24px;
    border-left:1px solid var(--line);box-shadow:-18px 0 40px -30px rgba(36,27,51,.5);
    transform:translateX(102%);transition:transform .28s var(--fade);z-index:70;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-link{padding:14px 0;font-size:16px;border-bottom:1px solid var(--line)}
  .nav-link::after{bottom:6px;left:0;right:auto;width:26px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;order:3}
  .search-box{width:170px}
  .timeline{flex-direction:column;gap:14px;padding-top:0}
  .timeline::before{left:8px;right:auto;top:6px;bottom:6px;width:2px;height:auto}
  .tl-item{padding-top:0;padding-left:32px;flex:1 1 auto}
  .tl-dot{top:6px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:76px 0}
}
@media (max-width:767px){
  .wrap{padding:0 20px}
  .brand-text{font-size:14px;max-width:150px}
  .search-box{display:none}
  .page-band h1{font-size:26px}
  .section{padding:56px 0}
  .section-head h2{font-size:24px}
  .section-no{font-size:26px;margin-bottom:24px}
  .notes-grid{grid-template-columns:1fr}
  .compare th,.compare td{padding:14px 16px;font-size:14px}
  .cta-inner{padding:56px 0}
  .cta-inner h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-actions .btn{width:100%}
}
@media (max-width:575px){
  .stats{grid-template-columns:1fr}
  .tl-card{padding:18px}
  .note-main .note-body{padding:22px 20px 26px}
  .site-footer{padding:48px 0 28px}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  .tl-card:hover,.side-card:hover,.chip:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --ink:#241B33;
  --ink-soft:#3A3640;
  --accent:#FF5A3C;
  --accent-soft:#FFE7E1;
  --lime:#C9F24D;
  --bg:#F7F4EF;
  --bg-soft:#EFEAE2;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --line-strong:#D9D2C6;
  --text:#3A3640;
  --muted:#6B6478;
  --ok:#2F9E6B;
  --warn:#E8A33D;
  --danger:#C0392B;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(36,27,51,.05);
  --sh-2:0 18px 40px -20px rgba(36,27,51,.28);
  --sh-3:0 6px 20px -12px rgba(36,27,51,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease);}
a:hover{color:var(--accent);}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em;font-style:normal;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.mono{font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;font-variant-numeric:tabular-nums;letter-spacing:0;}

/* ---------- 容器 ---------- */
.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-title{position:relative;padding-left:16px;font-size:28px;line-height:1.3;}
.section-title::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:18px;border-radius:2px;background:var(--accent);
}
.section-desc{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px;line-height:1.8;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--ink);background:var(--accent-soft);
  padding:6px 14px;border-radius:var(--r-pill);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease),height .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-3);border-bottom-color:var(--line-strong);}
.nav-wrap{
  display:flex;align-items:center;gap:24px;
  height:var(--nav-h);
  transition:height .25s var(--ease);
}
.site-header.is-scrolled .nav-wrap{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:24px;height:24px;border-radius:8px;background:var(--accent);
  color:#fff;font-size:13px;font-weight:800;line-height:24px;text-align:center;
  flex:0 0 24px;
}
.brand-text{font-size:16px;font-weight:700;color:var(--ink);line-height:1.25;letter-spacing:-.01em;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-soft);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:3px;border-radius:3px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);
}
.nav-link:hover{color:var(--accent);}
.nav-link.active{color:var(--ink);font-weight:700;}
.nav-link.active::after{transform:scaleX(1);}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;width:220px;padding:0 14px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color .2s var(--ease),background-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box i{color:var(--muted);font-size:13px;}
.search-box input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--ink);font-family:inherit;
}
.search-box input::placeholder{color:var(--muted);}
.search-box:focus-within{background:#fff;border-color:var(--accent);box-shadow:var(--sh-1);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--ink);font-size:16px;
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  border:1.5px solid transparent;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn:active{transform:scale(.98);}
.btn-primary{background:var(--accent);color:var(--ink);}
.btn-primary:hover{background:var(--ink);color:var(--bg);transform:translateY(-1px);}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:var(--bg);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}
.btn-sm{height:40px;padding:0 18px;font-size:15px;}
.btn-lg{height:56px;padding:0 32px;font-size:16px;}
.btn-block{width:100%;}

/* ---------- 页头 band ---------- */
.page-band{
  position:relative;
  padding:72px 0 56px;
  background-image:linear-gradient(100deg,rgba(247,244,239,.96) 0%,rgba(247,244,239,.86) 46%,rgba(247,244,239,.6) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center right;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-band::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:60px;
  background:linear-gradient(180deg,rgba(247,244,239,0) 0%,var(--bg) 100%);
  pointer-events:none;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--accent);}
.crumb span.sep{color:var(--line-strong);}
.crumb .current{color:var(--ink);font-weight:600;}
.page-band h1{
  font-size:34px;line-height:1.25;max-width:820px;
}
.page-lead{margin-top:16px;font-size:16px;line-height:1.85;color:var(--muted);max-width:700px;}
.band-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.meta-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:12px;color:var(--ink-soft);font-weight:600;
}
.meta-pill i{color:var(--accent);font-size:11px;}
.anchor-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;position:relative;z-index:2;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--ink-soft);
}
.chip:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}
.chip i{font-size:11px;color:var(--accent);}

/* ---------- Bento ---------- */
.bento{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  grid-auto-rows:210px;
  gap:24px;
}
.bento-item{
  position:relative;display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.bento-item:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
.bento-item .thumb{position:relative;width:100%;height:100%;overflow:hidden;background:var(--bg-soft);}
.bento-item .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.bento-item:hover .thumb img{transform:scale(1.04);}
.bento-item .body{padding:20px 22px 22px;}
.bento-item .body h3{font-size:19px;line-height:1.4;margin-bottom:8px;}
.bento-item .body p{font-size:14px;line-height:1.75;color:var(--muted);}
.bento-item .num{
  position:absolute;top:14px;left:16px;z-index:2;
  font-size:12px;font-weight:800;letter-spacing:.06em;color:var(--ink);
  background:var(--lime);padding:3px 10px;border-radius:var(--r-pill);
}
.bento-item.big{grid-column:span 2;grid-row:span 2;flex-direction:column;}
.bento-item.big .thumb{height:52%;}
.bento-item.big .body{padding:24px 26px 26px;}
.bento-item.big .body h3{font-size:22px;}
.bento-item.big .body p{font-size:15px;}
.bento-item.wide{grid-column:span 2;}
.bento-item.wide{flex-direction:row;}
.bento-item.wide .thumb{width:44%;height:100%;flex:0 0 44%;}
.bento-item.wide .body{padding:22px 24px;}
.bento-item .body .tagline{
  display:inline-block;margin-top:12px;font-size:12px;font-weight:700;
  color:var(--ink);background:var(--bg-soft);border-radius:var(--r-pill);padding:4px 12px;
}

/* ---------- 评分卡 ---------- */
.score-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.score-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 20px;box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.score-card:hover{transform:translateY(-2px);border-color:var(--line-strong);}
.score-card .label{font-size:13px;font-weight:600;color:var(--muted);}
.score-card .value{font-size:30px;font-weight:800;color:var(--ink);margin:8px 0 12px;letter-spacing:-.02em;}
.score-card .value small{font-size:13px;font-weight:600;color:var(--muted);margin-left:3px;}
.bar{height:6px;border-radius:3px;background:var(--bg-soft);overflow:hidden;}
.bar i{display:block;height:100%;border-radius:3px;background:var(--accent);}
.score-note{margin-top:20px;font-size:13px;color:var(--muted);}

/* ---------- 对比表 ---------- */
.table-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:8px 8px 0;box-shadow:var(--sh-1);overflow:hidden;
}
.cmp-table{width:100%;border-collapse:collapse;font-size:14px;}
.cmp-table caption{
  text-align:left;padding:16px 18px 12px;font-size:13px;color:var(--muted);
}
.cmp-table th,.cmp-table td{
  padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);
}
.cmp-table thead th{
  background:var(--bg);font-size:13px;font-weight:700;color:var(--ink);border-bottom:1px solid var(--line);
}
.cmp-table tbody tr:nth-child(even){background:#FCFBF9;}
.cmp-table tbody tr:last-child td{border-bottom:0;}
.cmp-table td:first-child{font-weight:600;color:var(--ink);}
.cmp-table .hl{color:var(--accent);font-weight:700;}

/* ---------- 深色区块 ---------- */
.dark-band{
  background:var(--ink);color:rgba(255,255,255,.78);
  padding:96px 0;
}
.dark-band h2{color:#fff;}
.dark-band .section-title::before{background:var(--accent);}
.dark-band .section-desc{color:rgba(255,255,255,.66);}
.step-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step-card{
  border:1px solid rgba(255,255,255,.16);border-radius:var(--r-md);
  padding:26px 24px;background:rgba(255,255,255,.03);
  transition:border-color .3s var(--ease),background-color .3s var(--ease),transform .3s var(--ease);
}
.step-card:hover{border-color:rgba(255,90,60,.6);background:rgba(255,255,255,.06);transform:translateY(-2px);}
.step-card .idx{font-size:32px;font-weight:800;color:rgba(255,255,255,.28);letter-spacing:-.03em;}
.step-card h3{color:#fff;font-size:18px;margin:12px 0 8px;}
.step-card p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);}
.dark-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px;}
.btn-light-outline{
  background:transparent;border:1.5px solid rgba(255,255,255,.7);color:#fff;
}
.btn-light-outline:hover{background:#fff;color:var(--ink);border-color:#fff;}

/* ---------- 反馈摘录 ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.quote-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
.quote-card .stars{color:var(--accent);font-size:12px;letter-spacing:2px;}
.quote-card p{margin-top:12px;font-size:14.5px;line-height:1.8;color:var(--ink-soft);}
.quote-card .from{
  display:flex;align-items:center;gap:10px;margin-top:18px;
  padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--muted);
}
.quote-card .avatar{
  width:34px;height:34px;border-radius:50%;background:var(--bg-soft);
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:var(--ink);overflow:hidden;flex:0 0 34px;
}
.quote-card .avatar img{width:100%;height:100%;object-fit:cover;}

/* ---------- 标签云 ---------- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:10px 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--ink-soft);
  transition:all .2s var(--ease);
}
.tag:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);box-shadow:var(--sh-1);}
.tag.hot{border-color:var(--accent);color:var(--accent);background:var(--accent-soft);}
.tag .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);}

/* ---------- FAQ ---------- */
.accordion-item{
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
  background:#fff;margin-bottom:12px;box-shadow:var(--sh-1);
}
.accordion-item:hover{border-color:#FFD3C7;}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--ink);background:#fff;
  padding:18px 20px;box-shadow:none;border:0;
}
.accordion-button:not(.collapsed){background:#fff;color:var(--ink);box-shadow:none;}
.accordion-button:focus{box-shadow:none;border:0;outline:2px solid rgba(255,90,60,.45);outline-offset:-2px;}
.accordion-button::after{
  background-image:none;content:"\002B";font-family:"Font Awesome 6 Free";
  font-weight:900;font-size:14px;color:var(--accent);
  width:24px;height:24px;line-height:24px;text-align:center;
  transition:transform .2s var(--ease);transform:none;
}
.accordion-button:not(.collapsed)::after{content:"\2212";transform:rotate(180deg);}
.accordion-body{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ---------- CTA 条 ---------- */
.cta-bar{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:40px;box-shadow:var(--sh-2);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-bar h2{font-size:24px;line-height:1.35;}
.cta-bar p{margin-top:10px;font-size:14.5px;color:var(--muted);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);padding:64px 0 32px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;font-weight:700;margin-bottom:16px;}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px;}
.site-footer h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7);}
.footer-links a:hover{color:var(--accent);}
.footer-qr{display:flex;gap:16px;align-items:flex-start;}
.qr{
  width:96px;height:96px;background:#fff;border-radius:10px;
  display:grid;grid-template-columns:repeat(5,1fr);grid-template-rows:repeat(5,1fr);
  gap:2px;padding:8px;flex:0 0 96px;
}
.qr i{background:var(--ink);border-radius:1px;}
.qr i.blank{background:transparent;}
.footer-qr small{font-size:12.5px;line-height:1.8;color:rgba(255,255,255,.6);}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 滚动进入 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  .wrap{max-width:1200px;}
}
@media (max-width:1199px){
  .bento{grid-auto-rows:200px;gap:20px;}
  .score-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:991px){
  :root{--nav-h:60px;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(320px,86vw);
    background:#fff;flex-direction:column;align-items:flex-start;gap:6px;
    margin:0;padding:92px 24px 32px;
    transform:translateX(100%);transition:transform .28s var(--ease);
    box-shadow:-24px 0 48px -28px rgba(36,27,51,.4);z-index:90;overflow-y:auto;
  }
  .nav-links .nav-link{width:100%;padding:14px 0;border-bottom:1px solid var(--line);font-size:16px;}
  .nav-links .nav-link::after{display:none;}
  body.nav-open .nav-links{transform:translateX(0);}
  body.nav-open::after{
    content:"";position:fixed;inset:0;background:rgba(36,27,51,.42);z-index:85;
  }
  .search-box{width:180px;}
  .page-band{padding:56px 0 44px;}
  .page-band h1{font-size:28px;}
  .section{padding:72px 0;}
  .bento{grid-template-columns:repeat(2,1fr);grid-auto-rows:200px;}
  .bento-item.big{grid-column:span 2;grid-row:span 2;}
  .bento-item.wide{grid-column:span 2;flex-direction:column;}
  .bento-item.wide .thumb{width:100%;height:150px;flex:none;}
  .step-row{grid-template-columns:1fr;}
  .quote-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-bar{padding:32px;}
}
@media (max-width:767px){
  .wrap{padding-left:20px;padding-right:20px;}
  .brand-text{font-size:14px;max-width:170px;}
  .search-box{width:40px;height:40px;padding:0;justify-content:center;border-radius:50%;}
  .search-box input{display:none;}
  .nav-tools{gap:8px;}
  .btn-primary.btn-sm{height:36px;padding:0 14px;font-size:14px;}
  .page-band h1{font-size:26px;}
  .page-lead{font-size:15px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:28px;}
  .section-title{font-size:24px;}
  .bento{grid-template-columns:1fr;grid-auto-rows:auto;gap:16px;}
  .bento-item.big,.bento-item.wide{grid-column:span 1;grid-row:auto;flex-direction:column;}
  .bento-item .thumb{height:170px;}
  .bento-item.big .thumb{height:190px;}
  .bento-item.wide .thumb{width:100%;height:170px;flex:none;}
  .score-grid{grid-template-columns:1fr 1fr;}
  .cmp-table th,.cmp-table td{padding:11px 12px;font-size:13px;}
  .dark-band{padding:56px 0;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .cta-bar{padding:26px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}
@media (max-width:575px){
  .score-grid{grid-template-columns:1fr;}
  .bento-item .body{padding:18px;}
  .cta-bar h2{font-size:21px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
  .bento-item:hover,.score-card:hover,.quote-card:hover,.tag:hover,.chip:hover{transform:none;}
}

/* roulang page: category4 */
:root{
  --ink:#241B33;
  --ink-soft:#3A3640;
  --muted:#6B6478;
  --brand:#FF5A3C;
  --lime:#C9F24D;
  --bg:#F7F4EF;
  --bg-soft:#EFEAE2;
  --card:#FFFFFF;
  --line:#E7E2DA;
  --line-strong:#D9D2C6;
  --ok:#2F9E6B;
  --warn:#E8A33D;
  --danger:#C0392B;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(36,27,51,.05);
  --sh-2:0 18px 40px -20px rgba(36,27,51,.28);
  --sh-nav:0 6px 20px -12px rgba(36,27,51,.18);
  --sect:96px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Courier New",monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-soft);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-0.02em;line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus{outline:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-stuck{box-shadow:var(--sh-nav);}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:24px;
  height:68px;
  transition:height .25s var(--ease);
}
.site-header.is-stuck .nav-wrap{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;max-width:260px;}
.brand-mark{
  width:30px;height:30px;flex:0 0 30px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand);
  color:#fff;
  font-size:16px;
  font-weight:800;
  border-radius:8px;
  line-height:1;
}
.brand-text{
  font-size:16px;
  font-weight:800;
  color:var(--ink);
  line-height:1.2;
  letter-spacing:-0.01em;
}
.brand:hover .brand-text{color:var(--brand);}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-soft);
  border-radius:8px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;
  background:var(--brand);border-radius:3px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink);font-weight:700;}
.nav-link.active::after{transform:scaleX(1);}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;width:220px;
  padding:0 14px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box i{color:var(--muted);font-size:13px;}
.search-box input{
  flex:1;min-width:0;border:0;background:transparent;color:var(--ink);
  font-size:14px;line-height:1;
}
.search-box input::placeholder{color:#9A93A4;}
.search-box:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,90,60,.14);}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);border-radius:10px;color:var(--ink);
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--line-strong);}

/* ---------- 按钮 ---------- */
.abtn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.abtn-primary{background:var(--brand);color:var(--ink);}
.abtn-primary:hover{background:var(--ink);color:#F7F4EF;transform:translateY(-1px);box-shadow:var(--sh-2);}
.abtn-primary:active{transform:scale(.98);}
.abtn-ghost{background:transparent;border:1.5px solid var(--ink);color:var(--ink);}
.abtn-ghost:hover{background:var(--ink);color:#F7F4EF;}
.abtn-sm{height:40px;padding:0 20px;font-size:14px;}
.abtn-dark-ghost{background:transparent;border:1.5px solid rgba(255,255,255,.5);color:#F7F4EF;}
.abtn-dark-ghost:hover{background:#F7F4EF;color:var(--ink);border-color:#F7F4EF;}
.link-more{font-size:14px;font-weight:600;color:var(--ink);border-bottom:2px solid transparent;}
.link-more:hover{color:var(--brand);border-bottom-color:var(--brand);}

/* ---------- 页头 band ---------- */
.page-band{
  position:relative;
  overflow:hidden;
  background:#EFEAE2 url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  padding:64px 0 56px;
}
.page-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(247,244,239,.96) 0%,rgba(247,244,239,.86) 46%,rgba(247,244,239,.42) 100%);
}
.page-band::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:56px;
  background:linear-gradient(to bottom,rgba(247,244,239,0),var(--bg));
}
.page-band .wrap{position:relative;z-index:2;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
  font-size:13px;color:var(--muted);margin-bottom:18px;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#B6AFC0;}
.crumb .cur{color:var(--ink);font-weight:600;}
.band-tag{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:12px;font-weight:700;color:var(--ink);
  margin-bottom:16px;
}
.band-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 3px rgba(201,242,77,.35);}
.page-band h1{
  font-size:34px;line-height:1.25;
  max-width:760px;
}
.page-band .lede{
  margin-top:16px;max-width:660px;
  font-size:16px;line-height:1.85;color:var(--muted);
}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:34px;padding:0 16px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:var(--ink);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.quick-stats{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:32px;
  padding-top:24px;border-top:1px solid rgba(36,27,51,.12);
}
.quick-stats .stat b{
  display:block;font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:22px;font-weight:700;color:var(--ink);line-height:1.2;
}
.quick-stats .stat span{font-size:13px;color:var(--muted);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sect) 0;}
.section-sm{padding:56px 0;}
.section-head{margin-bottom:40px;}
.section-head h2{
  position:relative;
  font-size:28px;line-height:1.3;padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:18px;
  background:var(--brand);border-radius:2px;
}
.section-head p{margin-top:12px;max-width:720px;color:var(--muted);font-size:15px;}
.section-head .head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ---------- 主体：目录 + 手风琴 ---------- */
.qa-layout{
  display:grid;
  grid-template-columns:280px minmax(0,1fr);
  gap:40px;
  align-items:start;
}
.toc{
  position:sticky;top:92px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 20px;box-shadow:var(--sh-1);
}
.toc h3{font-size:15px;margin-bottom:14px;letter-spacing:0;}
.toc-list li+li{margin-top:4px;}
.toc-list a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:8px;
  font-size:14px;color:var(--ink-soft);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.toc-list a i{font-size:12px;color:var(--muted);width:14px;text-align:center;}
.toc-list a:hover{background:var(--bg);color:var(--ink);}
.toc-list a.is-active{background:var(--bg-soft);color:var(--ink);font-weight:700;}
.toc-list a.is-active i{color:var(--brand);}
.toc-note{
  margin-top:20px;padding:16px;border-radius:var(--r-sm);
  background:var(--bg);border:1px dashed var(--line-strong);
  font-size:13px;line-height:1.7;color:var(--muted);
}
.toc-note b{color:var(--ink);}
.toc .abtn{width:100%;margin-top:16px;}

.qa-group + .qa-group{margin-top:40px;}
.qa-group-head{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.qa-group-head h3{font-size:20px;line-height:1.4;}
.qa-group-head .idx{
  font-family:var(--mono);font-size:32px;font-weight:700;
  color:rgba(36,27,51,.22);line-height:1;
}
.qa-group-head .count{
  margin-left:auto;font-size:12px;font-weight:700;color:var(--ink);
  background:var(--bg-soft);border-radius:var(--r-pill);padding:4px 12px;
}

.accordion{--bs-accordion-border-color:var(--line);--bs-accordion-bg:#fff;--bs-accordion-border-radius:12px;
  --bs-accordion-btn-color:var(--ink);--bs-accordion-btn-bg:#fff;--bs-accordion-active-color:var(--ink);
  --bs-accordion-active-bg:#fff;--bs-accordion-btn-focus-box-shadow:none;--bs-accordion-btn-focus-border-color:var(--line);
  --bs-accordion-inner-border-radius:12px;}
.accordion-item{
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
  background:#fff;box-shadow:var(--sh-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.accordion-item + .accordion-item{margin-top:12px;}
.accordion-item:hover{border-color:#F5C3B6;box-shadow:var(--sh-2);}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--ink);
  padding:18px 20px;background:#fff;line-height:1.55;
}
.accordion-button::after{
  width:16px;height:16px;background-size:16px;
  transition:transform .2s var(--ease);
  filter:invert(13%) sepia(12%) saturate(1200%) hue-rotate(230deg);
}
.accordion-button:not(.collapsed){color:var(--ink);box-shadow:none;}
.accordion-button:focus{box-shadow:none;border-color:var(--line);}
.accordion-body{
  padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--muted);
}
.accordion-body p+p{margin-top:12px;}
.accordion-body strong{color:var(--ink);}
.acc-steps{margin-top:14px;}
.acc-steps li{
  position:relative;padding-left:22px;font-size:14px;color:var(--ink-soft);line-height:1.8;
}
.acc-steps li+li{margin-top:8px;}
.acc-steps li::before{
  content:"";position:absolute;left:4px;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--brand);
}
.acc-meta{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:12px;font-weight:700;color:var(--ok);
  background:rgba(47,158,107,.1);border-radius:var(--r-pill);padding:4px 12px;
}

/* ---------- 安全提示条 ---------- */
.notice-bar{
  display:flex;gap:18px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);
  border-radius:var(--r-md);padding:24px 26px;box-shadow:var(--sh-1);
}
.notice-bar i{font-size:20px;color:var(--brand);margin-top:4px;}
.notice-bar h3{font-size:17px;margin-bottom:8px;}
.notice-bar p{font-size:14px;color:var(--muted);line-height:1.8;}
.notice-bar p+p{margin-top:8px;}

/* ---------- 表单 ---------- */
.form-layout{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:40px;align-items:start;
}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-1);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;font-weight:600;color:var(--ink);}
.field label .req{color:var(--brand);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  color:var(--ink);
  font-size:15px;
  transition:background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:132px;resize:vertical;line-height:1.75;}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#6B6478 50%),linear-gradient(135deg,#6B6478 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field input::placeholder,.field textarea::placeholder{color:#9A93A4;}
.field input:focus,.field select:focus,.field textarea:focus{
  background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,90,60,.14);
}
.field .err{display:none;font-size:12px;color:var(--danger);}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:var(--danger);}
.field.has-error .err{display:block;}
.form-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:24px;}
.form-hint{font-size:13px;color:var(--muted);}
.form-aside{
  background:var(--ink);color:rgba(247,244,239,.78);
  border-radius:var(--r-lg);padding:32px;
}
.form-aside h3{color:#F7F4EF;font-size:20px;margin-bottom:14px;}
.form-aside p{font-size:14px;line-height:1.85;}
.aside-list{margin-top:22px;}
.aside-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:14px;line-height:1.75;padding:12px 0;
  border-top:1px solid rgba(255,255,255,.16);
}
.aside-list li i{color:var(--lime);margin-top:5px;font-size:13px;}
.aside-qr{
  margin-top:24px;display:flex;align-items:center;gap:16px;
  background:#fff;border-radius:var(--r-md);padding:16px;
}
.aside-qr .qr{flex:0 0 96px;width:96px;height:96px;}
.aside-qr small{font-size:12px;color:var(--muted);line-height:1.7;}
.qr{
  display:grid;grid-template-columns:repeat(5,1fr);grid-template-rows:repeat(5,1fr);
  gap:3px;padding:8px;background:#fff;border:1px solid var(--line);border-radius:10px;
}
.qr i{background:var(--ink);border-radius:2px;}
.qr i.blank{background:transparent;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:var(--ink);
  color:rgba(247,244,239,.8);
  border-radius:var(--r-lg);
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{color:#F7F4EF;font-size:26px;line-height:1.35;}
.cta-band p{margin-top:10px;font-size:14px;max-width:520px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-note{font-size:12px;color:rgba(247,244,239,.55);width:100%;margin-top:4px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);color:rgba(247,244,239,.7);
  padding:64px 0 32px;margin-top:var(--sect);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand span:last-child{color:#F7F4EF;font-size:16px;font-weight:800;line-height:1.3;}
.site-footer p{font-size:14px;line-height:1.85;max-width:340px;}
.site-footer h4{color:#F7F4EF;font-size:15px;margin-bottom:18px;letter-spacing:0;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(247,244,239,.7);}
.footer-links a:hover{color:var(--brand);}
.footer-qr{display:flex;align-items:flex-start;gap:14px;}
.footer-qr .qr{flex:0 0 96px;width:96px;height:96px;}
.footer-qr small{font-size:12px;line-height:1.7;color:rgba(247,244,239,.6);}
.footer-bottom{
  margin-top:48px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.16);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,244,239,.55);
}

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

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .wrap{max-width:1200px;}
  .brand{max-width:220px;}
  .search-box{width:180px;}
  .qa-layout{grid-template-columns:240px minmax(0,1fr);gap:32px;}
}
@media (max-width:991.98px){
  :root{--sect:56px;}
  .nav-wrap{height:60px;}
  .site-header.is-stuck .nav-wrap{height:56px;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;
    width:min(82vw,340px);
    background:#fff;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:88px 24px 32px;
    margin:0;
    border-left:1px solid var(--line);
    box-shadow:-18px 0 40px -24px rgba(36,27,51,.4);
    transform:translateX(102%);
    transition:transform .28s var(--ease);
    overflow-y:auto;
    z-index:1040;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-link{padding:12px 10px;font-size:16px;}
  .nav-link::after{left:10px;right:auto;width:22px;bottom:6px;}
  .nav-tools .search-box{display:none;}
  .page-band h1{font-size:28px;}
  .qa-layout{grid-template-columns:1fr;}
  .toc{position:static;}
  .form-layout{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:32px 28px;}
  .cta-band h2{font-size:22px;}
}
@media (max-width:767.98px){
  body{font-size:15px;}
  .wrap{padding:0 20px;}
  .page-band{padding:44px 0 40px;}
  .page-band h1{font-size:26px;}
  .page-band .lede{font-size:15px;}
  .quick-stats{gap:20px;}
  .quick-stats .stat b{font-size:19px;}
  .section-head h2{font-size:23px;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:24px 20px;}
  .form-aside{padding:24px 20px;}
  .accordion-button{font-size:15px;padding:16px;}
  .accordion-body{padding:0 16px 18px;}
  .notice-bar{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .brand-text{font-size:14px;}
  .brand{max-width:180px;}
  .cta-band{padding:26px 20px;}
  .qa-group-head .idx{font-size:26px;}
  .footer-qr .qr,.aside-qr .qr{width:84px;height:84px;flex-basis:84px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}